• 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:
    SUMMARY The invention relates to a device at a wheel axle which device comprises a rigid wheel axle (11) to which [Ada spirits each a wheel (12, 13) is rotatably mounted which wheel axle (11) is connected to and held by a support member (14) which is fixedly or indirectly connected to the chassis of a work tool in such a way that the wheel axle (11) can move vertically at least in one direction relative to the support member (14), the support member (14) being designed to allow a limited translational movement of the wheel axle (11) a certain distance in relation to the support member (14). The invention also relates to a rail-bound vehicle provided with such a device.
    公开号:SE1351184A1
    申请号:SE1351184
    申请日:2013-10-07
    公开日:2015-04-08
    发明作者:Björn Söderberg
    申请人:Rosenqvist Rail Ab；
    IPC主号:
    专利说明:

    TECHNICAL FIELD The present invention relates to a axle suspension and a wheel axle, preferably for saving work tools or vehicles, which axle suspension allows the working tool to have a spare contact even when the workload is horizontally uncorrected. tends to tip the implement.
    Background of the invention Increased requirements for safety against tipping and recessing for saving work tools require that all wheels of the machine have contact with the cut even under the most conceivable conditions. A construction pair often has an unfavorable geometry, which means that the risk of saving is higher than for a completed pair.
    Historically, razor shafts for saving work tools have been a rigid construction. The only mobility previously allowed was the deflection of the structure in the structure when changing the wheel load. This gay a certain folly truth against the inequalities of the savings.
    However, the certainty requires that the compliance with a surface such as spares with unfavorable geometries is increased and even if possible indicates that a spruce against a tipping is passed.
    Prior art technology in this field includes a work vehicle intended to be driven on a rail section where the vehicle is connected to a wheel axle which has rail contact and which can to a certain extent follow a rail section with unfavorable geometry, i.e. they run parallel. the rails are not aligned with each other in the plane. The wheel axle is then suspended to a sieve chassis and rotatable in relation to this about a centrally located longitudinal axis, whereby hydraulic cylinders are used to fasten the angular bearing of the wheel axle at work and gives the other work vehicle a support against this wheel axle. ground contact.
    Prior art includes flake form hydraulics to provide stability for working with the work tool. Thus, existing devices require hydraulic lines, pressure means, hydraulic guides, etc. All of these devices constitute additional components in the system which complicate and increase the cost of construction.
    OBJECT OF THE INVENTION The object of the present invention is to provide a shaft device which allows vertical mobility of the wheels so that the contact with the roller is always maintained.
    The purpose is further to provide such a device which meant that the mobility does not adversely affect the machine from a working point of view with reduced stability. The purpose is further to provide such a device which offers an increased safety against tipping.
    The purpose is also to provide such a device without adding either hydraulic or electric support functions to the system.
    In addition, the purpose is to obtain a simple and cost-effective device which is both easy to maintain and easy to adapt to different load conditions.
    SUMMARY OF THE INVENTION By the present invention as set forth in the independent claims, the above objects are met whereby said disadvantages have been eliminated. Suitable embodiments of the invention are set out in the dependent claims.
    The invention relates to a device at a wheel axle which device comprises a rigid wheel axle to which [Dada spirits each wheel is rotatably mounted. The wheel axle is connected to and held to the ground by an area of a support member which is fixedly connected directly or indirectly to a work tool chassis in such a way that the wheel axle can at least in one spirit frame vertically in relation to the support member. The support member is designed to allow a limited translational movement of the wheel axle a fixed distance in relation to the support member. By "translational" is meant that all points in the wheel axle move equally long when the wheel axle is moved. This translational movement can also be combined with an angular movement of the wheel axle.
    In an embodiment of the device, the support member comprises a force beam at least partially enclosing above the wheel axle and provided with apertures inside which the wheel axle can perform this translational movement between two stops in the vertical direction without load. In this case, one or the other spirit of the wheel axle can strike a permanent distance under load. The fact that the wheel axle can move without load means that there is room for the wheel axle to move in relation to the support member if one intends to eliminate all forces which counteract such a movement. For example, such a movement can occur if the entire wheel axle system is lifted so that the wheels "float" in the air and displacement forces are allowed to affect the wheel axle in delta position. The fact that the wheel axle can move a certain distance under load meant that this movement can take place at the same time as forces are transferred to the support member to a ground on which the wheels roll via the wheel axle. This movement under load is an angular movement of the wheel axle in relation to the support member with the center of rotation coated in one or the other layer for force transmission between the support member and the wheel axle. Thus, the wheel axle is freely movable inside the support member and in relation to the power beam if no loads occur. The advantages of such a "freely movable" wheel axle are that the wheel axle is not connected to any other suspension component at all. Furthermore, such a wheel axle can be completely self-adjusting in different types of load cases.
    In an embodiment of the device, the said distance is delimited partly by the support member and partly by the attachment connected to the support member. According to the embodiments shown, the support member limits the movement of the wheel axle upwards and forwards and backwards, while the attack limits the movement of the wheel axle neatly. Thus, the support member and the attachment determine the limits of the maximum movement of the wheel axle.
    In one embodiment of the device, force-transmitting spacers are located between the wheel axle and the support member. Such spacers can be mounted either on a stand or on the wheel axle and are adapted to transmit forces as a result of the mass of the work tool.
    In one embodiment of the device, power transmitting spacers are located on the top of the wheel axle inside the power beam adjacent to its dead ends.
    In one embodiment of the device, the force-transmitting spacers are mounted on and around at least a part of the wheel axle mounted controls which for the mounting of the spacers are provided with mounting surfaces. In the embodiments shown, these controls are designed as rectangular blocks with upper, front and rear co-operation surfaces. These surfaces act with the support member and, especially in one embodiment, they co-operate with the inside of the power beam. In an embodiment of the device, said control means are provided with a front long distance and a rear long distance. These long distances constitute an adaptation of the bearing of the wheel axle in relation to the power beam.
    In one embodiment of the device, at least a flake of the longitudinal spacers is provided with one or more shims, i.e. thin intermediate layers, for a more precise adaptation of the longitudinal layer of the wheel axle in relation to the power beam. Shims can also be used to reduce the wheel's vertical mobility.
    In one embodiment of the device, true mounting surfaces are flat. This embodiment is advantageous because flat surfaces are easy to assemble and constitute a controlled distribution of the excess forces.
    The invention also relates to a rail-bound vehicle which is provided with at least one wheel axle device as indicated above. Within the scope of the invention, other constructions are also protected, for example those which are designed with arms enclosing the axle and with adjusting screws at the top of the wheel axle which delimit the translational movement of the wheel axle in vertical direction.
    Although the invention is primarily applicable to energy-saving work tools or vehicles, the invention is also applicable to articulated work tools or vehicles which handle large laterally displaced loads, for example loaders, wheel cranes, rail trailers, wagons and the like.
    Brief description of the drawings The invention will now be described in more detail with male references in connection with the accompanying drawing figures. The drawing figures show only principle sketches intended to facilitate the understanding of the invention.
    Figure 1 shows an exploded perspective view of a first embodiment of the invention.
    Figure 2 shows in perspective the first embodiment of the invention assembled.
    Figure 3 shows a top view of the embodiment according to Figure 2.
    Figure 4 shows a front view of the embodiment according to Figure 2.
    Figure shows an axial section A-A according to figure 3.
    Figure 6 shows a cross section B-B according to figure 4.
    Figure 7 shows an axial section of a second embodiment according to the invention in a first load case.
    Figure 8 shows the section according to Figure 7 in a second load drop.
    Figure 9 shows the section according to Figure 7 at a third load drop.
    Description of the invention Figure 1 shows in an exploded view of a wheel axle system 10 in which it incorporates a device according to an embodiment within the scope of the present invention at a wheel axle which device comprises a rigid wheel axle 11 to which two wheels 12, 13 are rotatable. mounted. Wheel axle 11 is connected to a support member 14 which is fixedly connected directly or indirectly to a chassis of a work tool in such a way that the wheel axle 11 can move at least at one end in vertical direction relative to the support member 14. The support member is designed as an over wheel axle 11 at least partially enclosing U-shaped power beam 15 provided with openings 16. Within the power beam 15, one end 17 and the other end 18 of the wheel axle, respectively, can frame vertically a fixed distance. The distance is limited in vertical direction upwards by force-transmitting spacers 19 on the upper side of the wheel axle 11. The spacers 19 are mounted against top surfaces 20 of rectangular guides 21 in turn mounted around the wheel axle 11. Furthermore, the guides are provided with longitudinal spacers 221, 222 which are mounted on the guide front and rear surfaces for adjusting the longitudinal position of the wheel axle in the support member 14. For a further fine adjustment of this position, one or more shims 223 may be added to the longitudinal distances. Said section is also delimited in the vertical direction downwards by the rafters 23 connected to the end caps of the power beam 15, which are connected to the spirits of the power beam with screw joints. Guide devices 21 are mounted around the wheel axle 11 at both of its spirits and consequently spacers and long distances are also mounted at the two spirits. Both wheels 12, 13 are mounted on the wheel axle via respective axle pins 24.
    Figure 2 shows the wheel axle system 10 assembled. The wheels 12, 13 are mounted on their axle pins 24 and the wheel axle is mounted to the support member 14 with the over-falls 23 connected to the support member 14 with screw joints 25. As can be seen from the figure, the entire upper part of the wheel axle is enclosed by the support member 14. The support member is provided with load reinforcements 26 in the form of disc beams which are connected to a first mounting device 27 and a second mounting device 28 for connecting the support member 14 to a work vehicle, not shown. Figure 3 shows a top view of the embodiment according to figure 2 with the dead wheels 12, 13 connected to the axle pins 24 of the wheel axle and the support members 14 of the device.
    Figure 4 shows a front view of the embodiment according to Figure 2 with the two wheels 12, 13 connected to the axle pins 24 of the wheel axle 11 and the support members 14 of the device. The figure also shows a control device 41 for stabilizing the movements of the wheel axle 11 in the support member 14.
    Figure 5 shows a section AA according to Figure 3 with the wheels 12, 13 mounted mounted on their respective axle pins 24 in the spirits of the wheel axle 11 which in turn is placed inside the support member 14. The wheel axle 11 abuts the inside of the support member 14 via the force transmitting spacers 19 pa the upper side of the wheel axle 11. With vertically downwardly loaded support member 14, the wheel axle 11 and the spacer means 19 will be pressed against the inside of the support member 14 as shown in the figure. If the non-directed force F is symmetrically placed against the support member, forces will be distributed to the wheel axle 11 with F / 2 through each spacer 19 according to the vertically directed arrows in the figure. Furthermore, the figure shows that in each raid 23 there is a vertical clearance 51, 52 which allows the respective spirit of the wheel axle 11 to be displaced in vertical direction inside the support member 14 if there is an oblique load of the support member 14.
    Figure 6 shows a cross section B-B according to figure 4 through the guide device 21 which is mounted around the wheel axle 11. The wheel 13 is connected to the wheel axle 11 in the manner previously described. One side spacer 19 which is flat and horizontally mounted on the guide member 21 abuts the inside of the upper side of the support member 14. The figure also shows the clearance 52 between the wheel axle 11 and the inside of the assault 23. In the longitudinal direction and mounted on the guide device 21, the longitudinal distances 221, 222 are mounted. These longitudinal distances are mounted flat against vertically directed and flat sides of the guide member 21. An adaptation of these longitudinal distances is made to adjust the longitudinal position of the wheel axle in the support member 14. The longitudinal distances 221, 222 abut the vertical insides 61, 62 of the ski member 14 according to the figure. .
    Figures 7-9 describe some load cases illustrating the present invention.
    Figure 7 shows a first load case in a second embodiment of the invention with corresponding numerals indicated in figure 5. Thus, the figure shows a corresponding axial section with the wheels 12, 13 mounted mounted on their respective axle pins 24 in the spirits of the wheel axle 11 as in their turn is placed inside the support member 14. The wheel axle 11 abuts the inside of the support member 14 via the force-transmitting spacers 19 on the upper side of the wheel axle 11. If the downward force F is symmetrically placed against the support member, forces will be distributed to the wheel axle 11 by F / 2 through each spacer 19 according to the vertically directed arrows in the figure in the same manner as shown in figure 5. Furthermore, the figure shows that in each raid 23 there is a vertical clearance 51, 52 which allows the respective wheel shaft 11 and spirit to be displaced in vertical direction inside the support member 14 if there is an oblique load on the support member 14. In the figure, the base 71, which is completely flat, has been shown with a dotted dot 1 inje. The base in the figure represents a ral section in which the dada rals are completely horizontal in relation to each other, that is to say the load case is completely symmetrical. Equal force is transmitted to each wheel 12, 13 contact with the respective ground. A work vehicle is fitted with a front wheel axle 11 and a rear wheel axle which! The wheel axles in the load case shown are on a completely horizontal rail section and all four wheels have contact with each rail and the force is transferred symmetrically to the rail section depending on the work vehicle's center of gravity .
    Figure 8 shows true wheel axle 11 as in figure 7, but in this second load case one rail under the left wheel 12 is lower than under the right wheel 13, for which the wheel axle 11 on the left side has been displaced within the support member 14 a distance corresponding to the unfavorable geometry of the rail section. 81 with the corresponding distance d. Since the force F is proportional to the mass m according to the force equation F = ma, a mass distribution to each ral can be as follows: 10 ton central load is distributed to the wheel axle 11 only by the right distance means 19. This excessive mass is distributed according to the torque law according to m1x1 = m2x2 where the sea arms x1 and x2 are respectively the torque shaft distance Than rals contact to the perpendicular force line through the spacer 19, which for a certain shaft construction would give the distribution of the said 10t, m1 = 1.13t and m2 = 8.87t. Thus, since the left wheel 12 in the figure also has contact with the rail, a certain mass m1 will also be taken up by this wheel. The result is that the! Dada pages have contact with the substrate and the mass will be distributed to the! Dada pages. This results in compliance with the ground despite unfavorable geometry, while at the same time forces are transmitted to show all wheels that are in contact with the ground.
    Figure 9 shows a third load case where a work tool, for example a digging bucket, works with a load far beyond the center of gravity of the work tool, i.e. on the right side in the figure with a downward force which can correspond to 8 of the upward force F2 acting on the standing member 14 left side. From the layer shown in figure 7 with a symmetrical load, the load in figure 9 has thus continued Above to the right in the figure, the support member 14 will be angled in relation to the wheel axle 11 around the fulcrum we made P1. The moment M1 around this point becomes M1 = F2 * Y1 around the team P1 However, an impact of the wheel axle 11 against the attack 23 at the left wheel 13 occurs when the rotation of the support member 14 at night is its largest rotation, which is a strong yarning to the operator. approaches. When an impact of the attack 23 against the wheel axle 11 takes place, the standpoint for continued increased side load will be moved from the layer P1 to the layer P2, whereby M2 = F2 * (Y1 + Y2). This meant that the torque arm for the tipping force has increased the distance Y2, which meant a temporary reduction of the tipping torque. Thus, a tilting warning is obtained before actual tilting takes place through an audible stop in the construction with a device according to the present invention, and a safety% is obtained through this displacement of the stand.
    Even though only some embodiments within the scope of the invention have been described, many other embodiments are conceivable within the scope of the appended claims. 9
    权利要求:
    Claims (10)
    [1]
    Device at a wheel axle which device comprises a rigid wheel axle (11) to which both spirits each a wheel (12, 13) is rotatably mounted which wheel axle (11) is connected to and held by a support member (14) which is fixedly connected directly or indirectly to the chassis of a work tool in such a way that the wheel axle (11) can move in vertical direction at least in one direction in relation to the support member (14), characterized in that the support member (14) is designed to allow a limited translational movement of the wheel axle (11) a certain distance in relation to the support member (14).
    [2]
    Device according to claim 1, characterized in that the support member (14) comprises a power beam (15) provided over the wheel axle (11) at least partially enclosing with openings (16) inside which the wheel axle (11) is load-free translationally movable between two ends in vertical joint so that one and the other spirit (17, 18) of the wheel axle (11) can move a certain distance under load.
    [3]
    Device according to any one of claims 1-2, characterized in that said stretch is delimited partly by the support member (14) and partly by the attachment (23) connected to the support member (14).
    [4]
    Device according to one of Claims 1 to 3, characterized in that force-transmitting spacers (19, 221, 222) are located between the wheel axle (11) and the support member (14).
    [5]
    Device according to claim 4, characterized in that force-transmitting spacers (19) are located on the upper side of the wheel axle (11) inside the force beam (15) in connection with its dead ends.
    [6]
    Device according to any one of claims 4-5, characterized in that the force-transmitting spacers (19, 221, 222) are mounted on and around at least a part of the wheel axle (11) mounted guide means (21) which for mounting the spacers ( 19, 221, 222) are provided with mounting surfaces (20).
    [7]
    Device according to claim 6, characterized in that said guide means (21) are provided with a front long distance (221) and a rear long distance (222).
    [8]
    Device according to claim 7, characterized in that at least one of the longitudinal distances (221, 222) is provided with one or more shims (223) for adapting the bearing of the wheel axle (11).
    [9]
    Device according to one of Claims 6 to 8, characterized in that all mounting surfaces (20) are flat.
    [10]
    Rail-bound vehicle, characterized in that the vehicle is provided with at least one device according to any one of claims 1-9.
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    同族专利:
    公开号 | 公开日
    EP3055181A4|2017-06-21|
    EP3055181B1|2021-08-04|
    DK3055181T3|2021-09-06|
    WO2015053682A1|2015-04-16|
    SE538487C2|2016-08-02|
    EP3055181A1|2016-08-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1588219A|1925-06-20|1926-06-08|Woodman Railway Supply Company|Railroad-car truck|
    US2032697A|1934-07-09|1936-03-03|Ephraim P Golden|Auto trailer|
    US2207848A|1934-07-18|1940-07-16|Symington Gould Corp|Railway truck|
    US2798735A|1955-01-17|1957-07-09|Standard Steel Works Inc|Multi-spring undercarriage for vehicles|
    DE1058853B|1956-03-05|1959-06-04|Vittorio Pogioli|Elastic suspension of the wheel axle of vehicles|
    US3073620A|1960-09-01|1963-01-15|Lord Mfg Co|Spring suspension|
    US3249067A|1962-10-17|1966-05-03|Kalamazoo Mfg Company|Convertible railway-highway vehicle|
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    FR1391385A|1963-09-03|1965-03-05|Lord Mfg Co|Adapter for roller bearings, especially for railway cars|
    DE2062797C3|1970-12-19|1978-10-12|Thyssen Industrie Ag, 4300 Essen|Suspension for vehicles|
    BE809588A|1974-01-10|1974-05-02|IMPROVEMENTS TO SUSPENSION DEVICES FOR SPRINGS ON AXLE BOXES FOR RAILWAY WAGONS AND SIMILAR APPLICATIONS.|
    US4438703A|1982-02-12|1984-03-27|The Budd Company|Primary suspension system for a railway car|
    GB2180807A|1985-05-24|1987-04-08|Milan Dane Trbojevic|Railway car axle assembly with stationary axle|
    GB2184409A|1985-12-20|1987-06-24|Krupp Gmbh|Railway crane|
    AU7451191A|1990-03-15|1991-10-10|Utdc Inc.|Suspension system|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1351184A|SE538487C2|2013-10-07|2013-10-07|Device at a wheel axle and rail-mounted vehicle with such wheel axle|SE1351184A| SE538487C2|2013-10-07|2013-10-07|Device at a wheel axle and rail-mounted vehicle with such wheel axle|
    DK14852806.0T| DK3055181T3|2013-10-07|2014-09-16|FITTINGS FOR A WHEEL AXLE AND TRACKED VEHICLE WITH SUCH A WHEEL AXLE|
    EP14852806.0A| EP3055181B1|2013-10-07|2014-09-16|A device for a wheel axle and a track bounded vehicle with such a wheel axle|
    PCT/SE2014/051067| WO2015053682A1|2013-10-07|2014-09-16|A device for a wheel axle and a track bounded vehicle with such a wheel axle|
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