• 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:
    The invention relates to a control cylinder device (1) for four control positions (I, II, III, IV), which comprises a fixedly arranged cylinder (2), a piston (3) received in the cylinder (2) with a piston rod (4) which protrudes from the cylinder (2), a liquid piston (4) displaceable relative to the piston (3), a first pressure chamber (D1) as well as a second pressure chamber (D2), each of which can be filled with a pressure medium, as well as two changeover valves (VI, V2 ), through which the input and output of the pressure medium can be controlled and a force accumulator (12), with which the piston (3) can be indirectly supported against the cylinder (2). 1
    公开号:SE1351007A1
    申请号:SE1351007
    申请日:2013-08-30
    公开日:2014-04-18
    发明作者:Radoje Prijovic
    申请人:Zahnradfabrik Friedrichshafen；
    IPC主号:
    专利说明:

    1015202530for example, be designed as locking rings on the piston rod, against which the spring cupsstö dj er.
    According to a further preferred embodiment, the spring cups can be supported viathird and fourth appropriations, ie radially outer abutment against the cylinderand / or an additional layer. The third and fourth appropriations are thus fixed.
    According to a further preferred embodiment, the pressure spring and the spring bowl arearranged in a spring housing e, which connects coaxially to the cylinder and comprises theradially external appropriations.
    According to a further preferred embodiment, the spring casing may be formed ina piece with a cylinder. Thereby one can obtain manufacturing and assemblybenefits. The spring housing is thereby part of the first pressure space and is filledpressure medium.
    According to a further preferred embodiment, the spring casing is arranged in onecover e connected to the cylinder, i.e. cylinder and spring housing are separate constructionswhich are connected to each other by assembly. In this case, the spring cover is etseparated from the first pressure space, when the separately mountable cylinder has onecylinder bottom, through which the piston rod passes through and is sealed against.
    According to a further preferred embodiment, the cylinder has a firstlarger diameter cylinder sections and a second smaller diameter cylinder section,wherein the two cylinder sections are arranged stepwise to each other via a shoulder. Cylin-they are thus designed as a stepping cylinder and comprise the first and the second pressurethe space. The shoulder then acts as a stop for the fl-surface piston.
    According to a further preferred embodiment, the piston has a piston area,which is slidably arranged in the second cylinder section, i.e. the cylinder section with itsmaller diameter. The piston front side and the second cylinder section delimit the otherthe pressure chamber.101520253035According to a further preferred embodiment, the piston has a piston shaftwith a smaller diameter relative to the piston area. The piston shaft has an outer cylindricalsliding surface and receives the piston rod.
    According to a further preferred embodiment, the liquid piston is slidably controlled.spirit on the piston shaft in the axial direction, i.e. there is relative movement between the fl surfacethe piston and the piston shaft.
    According to a further preferred embodiment, the cylinder has a firstcylinder bottom, which delimits the second pressure space outwards at the front side.
    According to a further preferred embodiment, the piston can be in a starting position(control position II) is fixed only by the action of the compression spring and the spring cups, ie.through the chained spring.
    According to a further preferred embodiment, the shoulder forms a stop for itfl surface of the piston and this a stop for the piston.
    According to a further preferred embodiment, the cylinder has a secondcylinder bottom, through which the piston rod is passed. In doing so, it can be chainedspring must be arranged either on the inner side of the cylinder bottom, ie. inside the cylinder or onthe outer side of the cylinder bottom, ie. outside the cylinder.
    According to a further preferred embodiment, the piston rod is at its outer endconnected to an impact limiting element, which cooperates with a fixed impactelement. Thereby it is achieved that the end position and the stroke of the piston are limited anddefined by means of the stroke limiting element arranged outside the pressure chamber.in connection with the fixed abutment element. As a result, no appropriation is made forthe piston against the first or second cylinder bottom. The movable stroke limiting elementalso acts as a transfer element for the piston movement.
    According to a further preferred embodiment, the control cylinder device isuseful preferably as selecting arcylinder for an automated gear transmission formotor vehicle. Through four rule or select positions including the starting position canfour gear paths of a gear transmission are selected. After selection and fixing of the gear path101520253035the current gear can be engaged, which is the case with automated gear transmissionsusing a shift cylinder. Automated shift transmissions are usedpreferably in commercial vehicles.
    Exemplary embodiments of the invention are shown in the drawings and are described in more detailbelow, whereby further features and / or advantages may appear from the descriptionand / or the drawings. There showsFig. 1 shows a control cylinder device according to a first embodiment of the invention.one,Fig. 2 shows a control cylinder device according to a second embodiment of the invention.one in a control mode I,Fig. 3 the control cylinder device according to Fig. 2 in a control position II,Fig. 4 the control cylinder device in a control position III,Fig. 5 the control cylinder device in a control position IV,Fig. 6 shows a matrix for the coordination of the control positions I - IV and the valve operatingNo,Fig. 7 the control cylinder device with an impact limiting element in the control position1 (1. Åndiäge),Fig. 8 control cylinder device with stroke limiting element in an outputmode (control mode II),Fig. 9 the control cylinder device with stroke limiting element in control position IIIandFig. 10 the control cylinder device with stroke limiting element in control position IV(2. End position).
    Fig. 1 shows a control cylinder device 1, which comprises a cylinder 2, apiston 3 with a piston rod 4 as well as a floating piston 5. The cylinder 2 is closed atthe end sides through a first cylinder base 6 as well as a second cylinder base 7. Thethe second cylinder bottom 7 has a passage opening (without reference numeral),through which the piston rod 4 is passed outwards. The cylinder 2 has a first cylindersection 2a with a larger diameter dl and a second cylinder section 2b with a smaller onediameter d2, the two cylinder sections 2a, 2b mutually forming a ledge through oneas appropriation acting approach 2c. The piston 3 has a piston area 3a, which is slidingand sealed in the second cylinder section 2b. In addition, the piston 3 has a101520253035piston shaft 3b, the diameter of which forms a ledge relative to the piston area 3a through afurther as appropriation acting approach 3c. Inside the first cylinder section 2a a one is formedfirst pressure space D1 with variable volume, which is extended in the axial direction betweenthe end surfaces of the piston shaft 3b and one side of the surface piston 5 and the othercylinder bottom 7. The first pressure space D1 is connected by an inlet and outletopening 8 via a diagrammatically represented valve V1 with a source (not shown) for a pressuremedium. Inside the second cylinder section 2b as well as between the piston area 3a and itfirst cylinder bottom 6 a second pressure space D2 with variable volume is formed, as viaan inlet and outlet opening 9 is connected to the source (not shown) for a pressuremedium via a second valve V2. The pressure chambers D1, D2 can be filled with a hydraulicliquid or preferably with compressed air. Between the end surface of the fl-surface piston andthe shoulder 3c is an annular leakage or venting space 10 arranged thereinthe second cylinder section 2b, which is connected to via a vent opening 11the atmosphere.
    The piston rod 4 has a first area 4a, which is arranged in the piston shaft 3band fixedly connected thereto, a second central region 4b, which is located between the pistonthe end side of the shaft 3b and the second cylinder bottom 7, as well as a third area 4c whichextends from the cylinder 2. In the central region 4b of the piston rod 4 is a power accumulatorarranged as a compression spring 12, which is clamped between two spring cups 13,14. The first fi feather bowl 13 arranged on the left in the drawing is supported by an outerring fl similar area to the inner side of the second cylinder bottom 7, and the otherthe spring cup 14 arranged on the right in the drawing supports itself with its ring-likeouter area against a locking ring 15 in the first cylinder section 2a. The two íjäderskålamas13, 14 radially inner areas are guided on the middle piston rod section 4b and are by means ofof additional locking rings 16, 17 each fixed to the piston rod 4 in an axial direction. INIn the position shown, the spring cups 13, 14 cannot move apart, however, towards each other.Other. This is called arranging the pressure spring 12 inside the spring cups 13, 14"Feathered feather".
    The control cylinder device 1 according to the invention is used - as for itposition of the technology mentioned at the outset (earlier application DE 10 2011 088 240.5) -as a selection cylinder for an automated gear transmission for motor vehicles and allowsa total of four election or control positions, which are designated I, II, III, IV and which are explained in more detailbelow by means of a further embodiment of the invention. At that in Fig. 11015202530The first exemplary embodiment of the invention shown are both pressure chambers D1, D2arranged inside the cylinder 2, i.e. also the chained spring 12 is insidethe cylinder 2, the bearing region of the cylinder 2 receiving the compression spring 12 withthe spring cups 13, 14 form a spring housing, which - as the embodiment below shows -can also be separate construction parts.
    In Fig. 1, the piston 3 with the piston rod 4 assumes a so-called initial position, whichcorresponds to the regulatory mode II. In this initial position, the two pressure chambers are D1, D2pressureless, ie. the piston 3 fi is xxerted only by the sprung spring 12. In this positionthus no energy supply is required, for example of compressed air. The three additional rulespositions I, III, IV are achieved by different pressure supply to the pressure spaces D1, D2, wherebysubtasks s1, sg, s3 result. The explanation of the pressure supply is made with the help of the otherthe exemplary embodiment as follows. Compared with the applicant's technology mentioned in the preambleposition, it is emphasized that the control cylinder device 1 shown and described above 1manages with only one compression spring, the chained spring 12, to achieve the fourrequired regulatory modes.
    Fig. 2 shows a control cylinder device 20 as a second embodiment ofthe invention. Unlike the first embodiment of the invention isthe cylinder forming the two pressure chambers and the spring housing receiving the pressure chambersthe spring, designed as separate structural members or structural groups, whichduring assembly are connected to each other. The control cylinder device 20 comprises acylinder 21 as a separate structural part, in which a piston 22 with piston rod 23 is receivedand which is closed outwards by means of a cylinder bottom 24. On the outside of the piston rod 23area 23a is a sprung compression spring 25 with spring cups 26, 27 arranged and - asdescribed above - fixed. The cylinder 21, which has a mounting shaft 21a, is fixedconnected to a transmission or gear housing 28. The gear housing 28 has onecylindrical opening 28a, which receives the resilient spring 25 with the spring cups 26, 27and thus the spring casing forms a 28a.The representation in Fig. 2 shows the piston 22 in its control position I, i.e. in its firstend position (right in the drawing). As indicated by the arrows P1, P2, the pressure space is D1pressure-loaded, while the pressure space D2 is depressurised. With the exception of the abovedifference - cylinder 21 as a separate design unit or spring housing - is adjustable101520253035the cylinder device 20 is analogously constructed as in the first embodiment according tof1g. 1 and has the same functions.
    Fig. 3 shows the control cylinder device 20 in control position II, i.e. in the so-calledthe initial position of the piston 22. This position corresponds to the position of the piston 3 in Fig. 1 and is highlightedover the other control positions I, III, IV, since the piston 22 and the piston rod 23 onlyheld by the loaded spring 25. As indicated by the arrows P1, P2, bothspaces D1, D2 without pressure, ie. no hydraulic or pneumatic forces actthe piston 22 or the floating piston 29. The resilient spring 25 is axially fixed withby means of the two spring cups 26, 27 in the spring housing 28a and thereby also heldpiston rod 23 in position. An external supply of energy is not required for this initial position.
    Fig. 4 shows the control cylinder device 20 in the control position III, the piston 23compared with control mode II in f1g. 3 has moved with the sub-stroke sg (compare fig. 1) to the left inthe drawing. This is achieved by a pressure supply to the two pressure chambers D1,D2, as indicated by arrows P1, P2. The sprung spring 25 is then compressed viathe spring cup 27, namely with the partial stroke or the spring distance S2 (compare f1g. 1).
    Fig. 5 shows the control cylinder device 20 in the control position IV, i.e. in flask 22second end position (left in the drawing). As indicated by the arrows P1, P2, is in this control positiononly the pressure space D2 is filled with pressure medium, while the pressure space D1 is depressurized.
    The chained spring 25 is further compressed, namely - in relation to the control position III infi g. 4 - partial stroke or spring path s; (compare Fig. 1).
    Fig. 6 shows a table in which the control positions I-IV (first row) are coordinatedwith the valve positions of the valves V1, V2. In this case, a cross means that the respective valve isopen and that the respective pressure space is filled with pressure medium. In regulation mode III forthe piston is thus open both valves V1, V2. At control position II, both valves areV1, V2 closed, ie. both pressure chambers are depressurised, the piston is held only by the springforce.
    Fig. 7 shows a control cylinder device 30, which corresponds to the control cylinder device20, which is, however, supplemented by an impact limiting element 31 and a fixed onestop 32. The impact limiting element 31 is connected to the piston rod 33 and performstherefore the same axial movement as the piston rod 33. The impact limiting element 31101520has a longitudinal groove or a long hole 3la, in which the fixed abutmentdesigned as a pin 32 engages. In the control position I shown, the piston 34 is in its positionfirst end position (on the right in the drawing), there being a gap 36 between the piston 34end surface and bottom of the cylinder. Pilama Pl, P2 corresponds to fi g. 2.
    Fig. 8 shows the initial position or control position II of the control cylinder device 30and corresponds to fi g. 3, the impact limiting element 31 has moved to the left in the drawingcompared to fi g. 7.
    Fig. 9 shows the control position III for the control cylinder device 30 and corresponds to fig.4. The impact limiting element 31l has moved further to the left in the drawing comparedwith the control position II in Fig. 8.
    Fig. 10 shows the control cylinder device 30 in the control position IV, i.e. the otherend position: The piston 34 is to the left of the drawing, leaving a gap 37between piston shaft and cylinder bottom. In this end position, the impact limiter is blockedthe element 31 through the stop 32, whereby the piston position is defined.
    权利要求:
    Claims (13)
    [1]
    Control cylinder device (1, 20, 30) for four control positions (I, II, III, IV), comprising a cylinder (2, 21, 35), a piston (3, 22, 34) received in the cylinder (2 , 21, 35) with a piston rod (4, 23, 33) projecting from the cylinder (2, 21, 35), a floating piston (5, 29) which can be displaced relative to the piston (3, 22, 34), a first pressure chamber (D1) as well as a second pressure chamber (D2), each of which can be filled with a pressure medium, as well as two changeover valves (V1, V2) by means of which the inlet and outlet pressure medium can be controlled and a force accumulator (12, 25) , with which the piston (3, 22, 34) can be indirectly supported via the cylinder (2, 21, 35) or an additional bearing (28) connected to the cylinder (21, 35).
    [2]
    Control cylinder device according to Claim 1, characterized in that the power accumulator is designed as a pressure spring (12, 25).
    [3]
    Control cylinder device according to Claim 2, characterized in that the pressure spring (12, 25) is clamped between two spring cups (13, 14; 26, 27).
    [4]
    Control cylinder device according to Claim 3, characterized in that the spring cups (13, 14; 26, 27) can be supported against the piston rod (4, 23) via internal stops (16, 27).
    [5]
    Control cylinder device according to Claim 3 or 4, characterized in that the spring cups (13, 14; 26, 27) can be supported against the cylinder (2, 21) and / or the further bearing (28) via external stops (7, 15).
    [6]
    Control cylinder device according to one of Claims 1 to 5, characterized in that the cylinder (2, 21) has a first cylinder section (2a) with a larger diameter (d1) and a second section (2b) with a smaller diameter (d2) and that the two the cylinder sections (2a, 2b) form a ledge opposite each other via a shoulder (2c).
    [7]
    Control cylinder device according to one of Claims 1 to 6, characterized in that the piston 3 has a piston area (3a) which is slidably arranged in the second cylinder section (2b) of smaller diameter (d2). 10 15 20 10
    [8]
    Control cylinder device according to claim 7, characterized in that the piston (3) has a piston shaft (3b) with a reduced diameter compared to the piston area (3a).
    [9]
    Control cylinder device according to Claim 8, characterized in that the surface piston (5) is guided on the piston shaft (3b).
    [10]
    Control cylinder device according to one of Claims 2 to 9, characterized in that the piston (3, 22) is only fixed in a starting position (II) by means of the pressure spring (12, 25).
    [11]
    Control cylinder device according to one of Claims 6 to 10, characterized in that the shoulder (2c) of the cylinder (2) forms an abutment for the surface piston (5) and this abuts the piston (3) in the third control position (III).
    [12]
    Control cylinder device according to one of the preceding claims, characterized in that the piston rod (33) is connected to an impact limiting element (31), which cooperates with a fixed abutment element (32).
    [13]
    Control cylinder device according to one of the preceding claims, useful as a selection cylinder in an automated gear transmission for motor vehicles.
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    同族专利:
    公开号 | 公开日
    DE102012218907A1|2014-04-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN108361237A|2017-10-27|2018-08-03|同济大学|A kind of quick high-frequency high-voltage energy-saving control device|DE1989293U|1968-05-02|1968-07-11|Westinghouse Bremsen Apparate|MID-PRESSURE CONTROL MOTOR.|
    DE7802241U1|1978-01-26|1978-05-03|Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen|Switching device for a gear change transmission consisting of a main and a two-range group transmission|
    FR2667908A1|1990-10-12|1992-04-17|Salvi|Pneumatic thrust cylinder with several stop positions|
    JP3978717B2|2002-01-22|2007-09-19|Ｓｍｃ株式会社|3-position stop cylinder|
    DE102011088240A1|2011-12-12|2013-06-13|Zf Friedrichshafen Ag|Actuator cylinder assembly for gearbox of motorcar, has movable floating piston that is provided with respect to main piston, and pressure chambers which are filled pressure medium through solenoid valves|DE102013211325A1|2013-06-18|2014-12-18|Zf Friedrichshafen Ag|Actuating cylinder arrangement|
    CN104074832B|2014-06-18|2016-03-23|哈尔滨工业大学|Self-protection disk spring type locked hydraulic cylinder|
    法律状态:
    2016-04-05| NAV| Patent application has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    DE201210218907|DE102012218907A1|2012-10-17|2012-10-17|Adjusting cylinder arrangement for automated gearbox of motor cars, has pressure chambers acted upon with print medium, piston indirectly supported opposite to cylinder by clockwork mechanism, and counter bearings supportable on cylinder|
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