• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Roller brake meter measuring system formed by a shaping structure (4) incorporating at least one measuring device (1) comprising a shaft (14) with supports (15) for attachment to the measuring device (1), a pneumatic wheel ( 6) fixed to the shaft (14) by means of a bushing (16), a first encoder (17) for measuring the angular speed of the shaft (14), a braking device, embracing the shaft (14), which incorporates an arm (12), and a load cell (13), solidly attached to the arm (12). When the pneumatic wheel (6) is located on rollers of a running brake tester, when the braking device is activated, the load cell (13) measures the braking force produced. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2646953A1
    申请号:ES201630818
    申请日:2016-06-16
    公开日:2017-12-18
    发明作者:Javier VILLAR ROCES；Pablo GUIMAREY ALVAREZ；Jose Adriano RODRIGUEZ LOPEZ
    申请人:Inspeccion Tecnica De Vehiculos De Asturias S A；INSPECCION TECNICA DE VEHICULOS DE ASTURIAS SA；
    IPC主号:
    专利说明:

     DESCRIPTION ROLLER BRAKE METER SYSTEM AND MEASUREMENT PROCEDURE OBJECT OF THE INVENTION The present invention relates to a portable system for measuring roller brake testers used in stations dedicated to the technical inspection of vehicles. The measurement is performed in dynamic mode, that is, without the need to paralyze or disassemble any component of the brake tester system, but with the mere use of the brake tester. The invention also discloses the method used by the measuring system. TECHNICAL PROBLEM TO BE SOLVED AND BACKGROUND OF THE INVENTION 10 As established by the regulations concerning stations dedicated to the Technical Inspection of Vehicles (ITV), all equipment capable of providing measures must be calibrated and monitored periodically in order to ensure that They are suitable for carrying out the control of the technical characteristics of the vehicles, verifying that the actual values of different parameters are within permitted tolerances. In ITV stations, the braking force is measured by so-called roller brake testers. These brake testers basically consist of two rollers on which the wheels of the vehicle to be inspected are placed. The vehicle is positioned by placing one 20 of the parallel wheel pairs on the rollers, in neutral, so that the brake tester rollers are allowed to drag the wheels of the vehicle. Once the brake pedal is pressed, the wheels transmit a pair to the rollers, due to the frictional force. This torque must overcome the drive motor of the rollers, so that the speed of rotation of the rollers remains constant. The roller drive motor 25 swings on itself, so that the same torque delivered by the rotor is suffered by the stator, to which an arm acting as a lever is fixed. The lever is connected to a load cell whose function is to measure the braking force of the vehicle from the torque generated by the drive motor. In the current state of the art, the most common method for performing the control of the roller brake testers is by applying a torque on the drive motor.Tilting of the brake testers. This test has a static nature, since there is no rotation of the motor or rollers while it is being performed. This static nature does not allow to assess the effects of the sliding produced in the contact of the wheels with the rollers, nor to assess the dynamic influence of other components of the test bench such as bearings, gears, etc. On the other hand, this static test usually requires the need to partially disassemble the test bench, as well as the need for handling various reference weights, thus increasing the time required to perform the relevant checks, such as inconvenience and necessary effort to be made by the operators. In this way, the origin of the present invention is based on the following reasons that are not resolved in the current state of the art:  Search for a faster method that allows to check the brake testers without the need to partially disassemble The test bench. 15  Need to control parameters derived from the braking force, such as efficiency or imbalance, which are not currently tested.  Need to check the slippage between the rollers and the wheels of the vehicle, 20 to ensure that it is either adjusted to that determined by the regulations, or it is within pre-established margins, something that is currently not controlled.  Need to carry out a control of the coefficient of adherence of the rollers. 25  Need to assess the dynamic influence of test bench components such as bearings, gears, etc.  Search for a method that avoids the use of standard masses for carrying out controls, avoiding the manipulation by operators of heavy elements, improving ergonomics during controls.DESCRIPTION OF THE INVENTION As described, the present invention relates to a roller brake tester measuring system. The measuring system comprises a forming structure that incorporates, solidly fixed by means of supports, at least one measuring device. 5 The measuring device comprises - a shaft incorporating the supports, - a pneumatic wheel fixed to the axle by means of a hub, - a first encoder for measuring the angular speed of the axle, - a braking device, hugging the axle, which incorporates one arm, and 10 - a load cell, solidly attached to the arm. Thus, when the pneumatic wheel is located on the rollers of a working brake tester, when the braking device is activated, the load cell, supported against a surface of the forming structure, measures the braking force produced. 15 The forming structure can incorporate, solidly fixed and positioned in aligned position, two measuring devices, so that the braking force of two pneumatic wheels can be measured at the same time, simulating a vehicle's undercarriage. 20 The forming structure can also be associated with at least one fork with an auxiliary wheel and a second encoder for measuring the angular speed of the auxiliary wheel. The fork is fixed to the forming structure by a linear adjustment mechanism for the positioning of the auxiliary wheel. This linear adjustment mechanism can consist, for example, of a pin which fixes the length of telescopicly connected tubes 25 by means of which the fork is attached to the forming structure or in a spring system that forces the contact of the auxiliary wheel with the brake tester rollers. Thus, when the auxiliary wheel is located on the brake tester rollers in operation, the speed marking difference between the first encoder and the second encoder indicates that the pneumatic wheel slides on the brake tester rollers. The measuring system comprises an electronic system for the activation of the braking device and the representation in a terminal of the values measured by the encoders and the force cell.The measuring system also comprises a microprocessor to store information about system components and to process the measured values and thus be able to calculate other values that would be represented in a terminal. The braking device is formed by a brake disc that is solidly attached to the axle, a support ring that hugs the shaft and rotates madly with respect to it by means of bearings and a brake caliper, solidly attached to the support ring located in proximity to the disc of brake to act on it. The invention also describes a conveyor vehicle comprising the roller brake tester measuring system 10 described above and comprising, solidly joined, a fixing structure incorporating a pneumatic cylinder for mounting the measuring system. The invention also describes the method for measuring roller brake testers 15 by the described measuring system. The procedure comprises the following phases: a) positioning a pneumatic wheel on the rollers of a brake tester; b) activate the brake tester rollers; c) activate the braking system of the measuring system; D) represent in a terminal values measured by the load cell and by the first encoder. Additionally, the procedure may comprise the following phase: e) represent in a terminal values processed from information stored about system components and the values measured in phase d). In addition, in phase a) an auxiliary wheel can also be positioned on the brake tester rollers and can represent, in phase d), the value measured by the second encoder. BRIEF DESCRIPTION OF THE FIGURES To complete the invention that is being described and in order to help a better understanding of the features of the invention, according to a preferred embodiment of the invention, a set of drawings is attached in which , with illustrative and non-limiting character, the following figures have been represented:- Figure 1 represents a perspective view of the system of the invention implanted in a trailer. - Figure 2 represents a top front perspective view of the system of the invention. - Figure 3 represents a bottom front perspective view of the system of the invention. - Figure 4 represents an elevation view of the system of the invention. - Figure 5 represents a plan view of the system of the invention. - Figure 6 represents a perspective view of the measuring device of the invention without the pneumatic wheel. 10 - Figure 7 represents a view of Figure 6 from another perspective. - Figure 8 represents an operating scheme of the system of the invention. The following is a list of the references used in the figures: 1. Measuring device. 15 2. Fixed structure. 3. Hydraulic cylinder. 4. Shaping structure. 5. Anchorage. 6. Pneumatic wheel. 20 7. Auxiliary wheel. 8. Fork. 9. Brake disc. 10. Brake caliper. 11. Support ring. 25 12. Arm. 13. Load cell. 14. Axis 15. Support. 16. Bushing. 30 17. First encoder. 18. Second encoder. 19. Solenoid valve. 20. Pressure group. 21. Pressure relief valve. 35 22. Pressure switch.DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION As mentioned, the present invention relates to a portable system for measuring roller brake testers used in ITV facilities and the method used by the system. 5 An embodiment of the system of the invention is shown in Figures 2 to 5 in different views. It has, as main components, a pair of measuring devices (1). A representation of a measuring device can be seen in Figures 6 and 7, where the pneumatic wheel (6) has not been incorporated so as not to remove clarity from the figure. Each measuring device (1) comprises an axis (14) that incorporates, adapted by means of bearings, a pair of supports (15) by means of which they are fixed to a forming structure (4). Each of the axles (14) incorporates a bushing (16) at one of its ends for fixing, in a solidary manner, a pneumatic wheel (6). The axles (14) are located aligned in the forming structure (4), simulating the two axles of a 15-wheel train of a vehicle. Figure 1 shows the measuring system of the invention installed in a transport vehicle to become a portable measurement system, being able to be moved from one place to another and to be able to perform brake tester measurements at different ITV stations, 20 without having to be fixed in any of them. For this, the transport vehicle incorporates a fixing structure (2) that is solidly attached to the vehicle and incorporates a hydraulic cylinder (3). On the other hand, the measuring system of the invention incorporates an anchor (5) in the forming structure (4) with which it is attached to the fixing structure (2) by means of the hydraulic cylinder (3). The connection of the measuring system to the fixing structure (2) is preferably by reversible means, so that the anchor (5) can be disassembled from the hydraulic cylinder (3) to be installed in another vehicle or even in another location that Do not be mobile. The objective of the hydraulic cylinder (4) is the vertical displacement of the measuring system of the invention. The hydraulic cylinder (5) is reversible and therefore has two functions. The first of these is to allow the measuring system to be lowered from the vehicle in which it is fixed to support the pneumatic wheels (6) on the ground to be moved 35 to the brake tester rollers to be measured, as if they were one more vehicle that is going toPerform a technical inspection. The second function of the hydraulic cylinder (4) is to raise the measuring system in the vehicle for transport once the brake tester has finished. It should be noted that the vehicle where the measuring system is installed does not have to be motorized, it can simply be a trailer, as shown in Figure 1. In fact, in addition to being able to locate and transport the device of the invention, The vehicle is only requested to be trained to be able to provide the device of the invention with sufficient weight to be able to withstand the high braking forces to which the device will be subjected in a test with a roller brake tester. 10 The measurement of the braking force on the brake tester is to be carried out by means of pneumatic wheels (6) which, as described, are fixed, by means of bushings (16), to the respective measuring devices (1) and supported by the brake tester rollers. The measuring system also includes a braking system that incorporates control electronics, for the control of the two measuring devices (1). The braking system, on each axle (14), incorporates a brake disc (9), solidly connected to the axle (14), a brake caliper (10), attached to a support ring (11) that turns insane with respect to the shaft (14) by means of bearings, an arm (12), solidly connected to the support ring (11) and acting as a lever, and a load cell fixed to the arm (12) by which the force of braking produced on the brake disc (6) upon contact with a surface of the forming structure (4). Figures 6 and 7 show the mechanical components of the braking system incorporated in a measuring device (1). The angular velocity of the axes (14) is measured by means of first encoders (17) that have only been represented in Figure 8 of the general operating scheme and may be located, for example, in the forming structure (4). It should be considered that, being solidly connected, the speed of the axles (14) corresponds to the speed of the respective pneumatic wheels (6) attached to them. 30 On the other hand, the measuring system incorporates a pair of forks (8), each located at one end of the forming structure (4). Each fork (8) holds an auxiliary wheel (7) intended to rest on the brake tester rollers. Because the height at which the measuring system is positioned is determined by the size of the pneumatic wheels 35 (6), to ensure the contact of the auxiliary wheels (7) with the rollers of theFrenometer, the forks (8) incorporate a linear adjustment mechanism that allows varying the height at which the auxiliary wheels (7) are located. The linear adjustment mechanism may consist of a spring system that forces the contact of the auxiliary wheels (7) against the brake tester rollers at the desired level or it may consist of a pin which fixes the length of telescopicly connected tubes by means of which join the fork (8) to the forming structure (4). Figure 4 clearly shows a representation of the forks (8) with the auxiliary wheels (7) attached to the forming structure (4) by this latter adjustment mechanism by means of a handle. In this way, the auxiliary wheels (7) rotate driven by the brake tester rollers. 10 Each fork (8) incorporates a second encoder (18) to determine the speed of rotation of the auxiliary wheels (7) and, consequently, of the brake tester rollers. Like the first encoders (17), they have only been represented in Figure 8 of the general scheme of operation of the measuring system. It is important to keep in mind that, for the speed of the auxiliary wheel (7) to be the same as the speed of the rollers, it is necessary to ensure that the auxiliary wheels (7) do not slide on the brake tester rollers. Although the only effort they have to overcome is that of the friction of the axle of the auxiliary wheel (7) which, by incorporating bearings, is reduced to a minimum, preferably the auxiliary wheels (5) have a rubber cover or similar that They provide sufficient friction to ensure that there is no slippage in contact with the rollers. 20 In this way, the data recorded by the first encoders (17) and the second encoders (18), respectively, are recorded in a microprocessor to monitor, independently and constantly, the speed of rotation of the pneumatic wheels (6) and of the brake tester rollers, in order to detect if there is slippage between them. On the other hand, the coefficient of adhesion of the pneumatic wheel assembly (6) - rollers can also be determined, having the data related to the braking forces, measured by the load cell (13) and the weight of the system, which It is checked beforehand before proceeding to a measurement. 30 The data recorded by the load cell (13) and the encoders (17, 18) are monitored through a graphic terminal such as a screen, which shows them in real time. Figure 8 shows the basic functional scheme of the system. 35At the moment when the pressure group (20) is activated, pressure can be exerted independently on any of the two brake calipers (10), thanks to the control of the solenoid valves (19). Each brake caliper (10) will, in turn, exert a pressure on the corresponding brake disc (9) and will tend to move in solidarity with the brake disc (9) to which it is associated. When the brake calipers (10) are attached to the load cells 5 (13) through the arm (12), the load cell (13), which is supported on the fixed structure (2) of the system, will record the braking effort made by each of the brake calipers (10). As indicated, the first encoders (17), located on each of the axles (14), 10 record the speed of rotation of each pneumatic wheel (6), while the second encoders (18) record the speed of rotation of the brake tester rollers through the auxiliary wheels (7). In this way, using the microprocessor you can measure the speed differences between the rollers and the pneumatic wheels (6) and calculate the slippage between the two. 15 The braking system operates the brake calipers (7) individually through a hydraulic pressure group (20) and several solenoid valves (19) arranged between it and the brake calipers (10), allowing different simulations brake force through both brake calipers (10). The pressure group (20) is also responsible for controlling the hydraulic cylinder (3) for lowering and raising the measuring system to the transport vehicle. The operating circuit also includes a pressure relief valve (21) and a pressure switch (22) as control elements, as shown in Figure 8. 25 The information of the braking force received by the load cell (13) , of the speeds of rotation of the pneumatic wheels (6) and of the auxiliary wheels (7), received through the first and second encoders (17, 18), is registered in the microprocessor. In addition, values relative to the weight that gravitates on the axles (14), previously calculated on a scale, to the diameter of the rollers, calculated manually with an appropriate 30-meter or measuring element, and to the diameter of the pneumatic wheels (6), calculated automatically or by suitable meter, they are also recorded in the microprocessor. This information can be processed to obtain the data related to braking forces, efficiency, imbalance and sliding in different work situations, as well as the coefficient of adhesion pneumatic wheels (6) - real-time roller, 35 and represent them through a terminal such as a screen. This allows theOperators check if the data thrown by the tested brake tester match the data emitted by the measuring system, verifying it quickly and, above all, without having to access the inside of the machine. The described embodiment is the most complete that can be done, and can be simplified according to needs. Thus, other embodiments are based on the forming structure (4) incorporating a single measuring device (1), or two that, in turn, can incorporate auxiliary wheels (7) or not. In this way, embodiments of measuring systems can be obtained with any possible combination of measuring devices (1) with auxiliary wheels (7). On the other hand, the braking system of the invention can be based on other known braking means, without necessarily incorporating an electronic control system. The present invention should not be limited to the embodiment described herein. Other 15 configurations can be made by those skilled in the art in view of the present description. Accordingly, the scope of the invention is defined by the following claims. 
    权利要求:
    Claims (1)
    [1]
    CLAIMS 1.- Roller brake tester measuring system characterized in that it comprises a shaping structure (4) that incorporates, solidly fixed by means of supports (15), at least one measuring device (1) comprising: - a shaft (14) that incorporates the supports (15), 5 - a pneumatic wheel (6) fixed to the shaft (14) by means of a hub (16), - a first encoder (17) for measuring the angular velocity of the shaft (14), - a braking device, hugging the shaft (14), which incorporates an arm (12), and - a load cell (13), solidly attached to the arm (12), where, being the pneumatic wheel (6) located on rollers of a working brake tester, by activating the braking device, the load cell (13) measures the braking force produced. 2.- Roller brake tester measuring system, according to claim 1, characterized in that the shaping structure (4) incorporates, solidly fixed and located in an aligned position, two measuring devices (1), so that the force can be measured braking system of two pneumatic wheels (6) at the same time, simulating a running gear of a vehicle. 3.- Roller brake tester measuring system, according to claim 1 or 2, characterized in that the shaping structure (4) comprises at least one fork (8) that incorporates an auxiliary wheel (7) and a second encoder (18) for measuring the angular speed of the auxiliary wheel (7), the fork (8) being fixed to the shaping structure (4) by means of a linear adjustment mechanism for the positioning of the auxiliary wheel (7), so that, being the auxiliary wheel (7) located on the brake tester rollers in operation, the difference in speed marking between the first encoder (17) and the second encoder (18) indicates that the pneumatic wheel (6) slides on the brake tester rollers . 4. Roller brake tester measuring system, according to claim 3, characterized in that the linear adjustment mechanism consists of a wingtip that fixes the length of telescopically joined tubes.5. Roller brake tester measuring system, according to claim 3, characterized in that the linear adjustment mechanism consists of a spring system that forces the auxiliary wheel (7) to contact the brake tester rollers. 6.- Roller brake tester measuring system, according to any of claims 1 5 to 5, characterized in that it comprises an electronic system for activating the braking device and the representation on a terminal of the values measured by the encoders (17, 18) and the force cell (13). 7. Roller brake tester measuring system, according to any of claims 6, 10 characterized in that it comprises a microprocessor that stores information about system components and processes measured values to calculate other values and represent them on a terminal. 8.- Roller brake meter measuring system, according to any of the preceding claims 15, characterized in that the braking device comprises: - a brake disc (9) solidly attached to the shaft (14), - a support ring (11) that embraces the shaft (14) and rotates idly with respect to it, - a brake caliper (10), solidly attached to the support ring (11) located to grip the brake disc (9). 20 9.- Transporter vehicle characterized in that it comprises the roller brake tester measuring system described in any one of claims 1 to 8. 10.- Transporter vehicle, according to claim 8, characterized in that it comprises a fixing structure (2 ), solidly attached, which incorporates a pneumatic cylinder (3) for mounting the roller brake tester system. 11.- Procedure for measuring roller brake testers by means of the system of claims 1 to 8, characterized in that it comprises the following phases: a) positioning a pneumatic wheel (6) on the rollers of a brake tester; b) activate the brake tester rollers; c) activate the braking system of the metering system; d) representing values measured by the load cell (13) and by the first encoder (17) on a terminal.12.- Procedure for measuring roller brake testers, according to claim 11, characterized in that it comprises the following additional phase: e) representing processed values on a terminal from information stored about system components and the values measured in phase d). 5 13.- Procedure for measuring roller brake testers, according to claim 11 or 12, characterized in that in phase a) an auxiliary wheel (7) is also positioned on the brake tester rollers and in phase d) it is also positioned represents the value measured by the second encoder (18). 10
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    同族专利:
    公开号 | 公开日
    ES2646953B1|2018-10-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4135766C1|1991-10-30|1992-06-04|Technischer Ueberwachungs-Verein Rheinland Ev, 5000 Koeln, De|Mobile calibrating assembly for vehicle braking test stand - consists of identically working vehicle with at least one wheel having measuring brake coupled to indicator for effective wheel braking force|
    EP1202037A1|2000-10-27|2002-05-02|TÜV Kraftfahrt GmbH, Unternehmensgruppe TÜV Rheinland/Berlin-Brandenburg|Mobile device for calibrating a test bench for vehicle brakes|
    TWM288685U|2005-06-07|2006-03-11|Jen-Yuan Liu|Dynamic inspection and calibration device of brake tester|
    DE102011088424A1|2011-12-13|2013-06-13|Bayerische Motoren Werke Aktiengesellschaft|Test apparatus for roller test bench for motor vehicle e.g. motorcycle, has support that is provided with connection device for spatial fixing of testing apparatus in relation to the roller test bench |
    CN102768117A|2012-07-03|2012-11-07|浙江江兴汽车检测设备有限公司|Portable dynamic wheel type calibrator for roller opposite force type automobile brake inspection bench|
    法律状态:
    2018-10-01| FG2A| Definitive protection|Ref document number: 2646953 Country of ref document: ES Kind code of ref document: B1 Effective date: 20181001 |
    2019-03-06| FA2A| Application withdrawn|Effective date: 20190228 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201630818A|ES2646953B1|2016-06-16|2016-06-16|ROLLER BRAKE METER SYSTEM AND MEASUREMENT PROCEDURE|ES201630818A| ES2646953B1|2016-06-16|2016-06-16|ROLLER BRAKE METER SYSTEM AND MEASUREMENT PROCEDURE|
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