CN103671652A - Parking oil cylinder with gap adjustment function - Google Patents
Parking oil cylinder with gap adjustment function Download PDFInfo
- Publication number
- CN103671652A CN103671652A CN201210354897.9A CN201210354897A CN103671652A CN 103671652 A CN103671652 A CN 103671652A CN 201210354897 A CN201210354897 A CN 201210354897A CN 103671652 A CN103671652 A CN 103671652A
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- guide rod
- sleeve
- nut
- gap adjustment
- piston
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- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The invention discloses a parking oil cylinder with the gap adjustment function. A piston abuts against a ball plunger through a thrust bearing; one end of an adjusting nut is provided with external threads; internal threads of a guide nut are in threaded connection with the external threads of the adjusting nut; the periphery of the guide nut is matched with an inner hole of a tapper sleeve in a sliding mode; a limit sleeve is fixed on a rear cylinder cover; an inner hole of the limit sleeve sleeves a guide rod; the guide rod and the rear cylinder cover are fixed axially; one end of the limit sleeve is provided with a limit flange; one end of the guide nut is provided with the inward limit necking opening; the limit flange can abut against the limit necking opening; a conical surface sleeve sleeves the rear cylinder cover fixedly; the periphery of the conical surface sleeve is matched with the inner hole of the tapper sleeve in a sliding mode; one end of the conical surface sleeve is provided with a sleeve tapper hole; the periphery of the guide nut is provided with the annular conical surface which can extend into the sleeve taper hole. According to the parking oil cylinder with the gap adjustment function, the gap adjustment structure is arranged in the brake cylinder and accordingly the installation space is saved and the structure is compact.
Description
Technical field
The present invention relates to the parts of brake clamp for a kind of rail traffic vehicles, especially a kind of oil cylinder of parking that can make the gap adjustment of brake clamp brake lining.
Background technique
Foundation brake system is as the important component part of rail traffic vehicles, and in order to brake more rapidly, general gapped regulating device in its braking system, for compensating the wearing and tearing of braking brake lining and brake disc, prevents brake lining and brake disc excesssive gap.Clamp lash adjusting device is generally independent of master cylinder or exists in one end of master cylinder at present, its adjustment mode adopts mechanical whorl structure or frictional damping structure to realize conventionally, but the increase along with axletree weight, to new requirements of proposition such as installation dimensions, need the brake lining clearance adjustment mechanism that development structure is compact, powerful.
Summary of the invention
The object of the present invention is to provide the oil cylinder of parking with gap adjustment function of a kind of compact structure, saving installing space.
In order to achieve the above object, technological scheme of the present invention is: a kind of oil cylinder of parking with gap adjustment function, comprise cylinder body, back cylinder cover, front end housing, piston and mounting flange, back cylinder cover is fixedly connected with the two ends of cylinder body respectively with front end housing, mounting flange is fixedly connected with front end housing, on mounting flange, there is piston hole, piston is through front end housing, and coordinate with the piston hole slippage of mounting flange, on front end housing, there is oil inlet hole, also there is adjusting axle, tapered sleeve, adjusting nut, guiding nut, conical surface lining, guide rod, stop collar and elastic component, elastic component is sleeved on tapered sleeve, one end and the tapered sleeve of elastic component offset, the other end and back cylinder cover offset or offset by pad and back cylinder cover, adjusting nut is positioned at tapered sleeve, and in adjusting nut periphery, there is annular and regulate the conical surface, on tapered sleeve, there is the taper hole that regulates cone match with annular, one end of guide rod and back cylinder cover axial restraint, adjusting axle and piston load, the inner of adjusting axle has external thread section, and there is pilot hole, the other end of guide rod stretch in pilot hole and with pilot hole axial sliding fit, adjusting nut is threaded with the external thread section of adjusting axle, and one end of adjusting nut has a plurality of bulb plungers, piston and bulb plunger offset, the other end of adjusting nut has outside thread, the internal thread of guiding nut is threaded with the outside thread of adjusting nut, the endoporus of guiding nut periphery and tapered sleeve is slidably matched, stop collar is fixed on back cylinder cover, the inner hole sleeve of stop collar is on guide rod, and by guide rod and back cylinder cover axial restraint, one end of stop collar has spacing flange, one end of guiding nut has inside spacing reducing, spacing flange can offset with spacing reducing, conical surface lining is fixedly set on back cylinder cover, the periphery of conical surface lining and the endoporus of tapered sleeve are slidably matched, and one end of conical surface lining has lining taper hole, the periphery of guiding nut has circular cone, circular cone can stretch in lining taper hole.
On described guiding nut, have a plurality of bulb plungers that radially extend, the endoporus wall of bulb plunger and tapered sleeve offsets.
On described back cylinder cover, be fixed with fixed plate, have guide rod anti-rotating hole on fixed plate, and the outer end of guide rod is hexagonal shape, the both sides, outer end of guide rod are stuck in guide rod anti-rotating hole.
Described adjusting axle outer end is also set with wear-resistant sleeve.
On described guide rod, key is housed, the keyway in the pilot hole of key and adjusting axle is slidably matched.
Described piston offsets by thrust-bearing and bulb plunger, and thrust-bearing is needle roller thrust bearing.
Described elastic component is formed by stacking for several dish springs.
Described stop collar passes through lining encapsulation on guide rod.
Also have piston stopper, piston stopper is positioned at front end housing, and is sleeved on mounting flange.
Adopt after said structure the rotation of different screw threads during by different operating state, the gap that during compensation braking, brake lining or brake disc wear produce; In order to allow different screw pair rotations, during design, adopted bulb plunger to guarantee that the annular of adjusting nut regulates the conical surface when being subject to certain force, can throw off tapered sleeve and rotate; Adopt on the conical surface lining lining taper hole is set, the circular cone of lining taper hole and guiding nut end limits the displacement to the right of guiding nut; Adopt the spacing reducing of guiding nut and the spacing flange of stop collar, limit guiding nut to left dislocation.This invention compared with prior art, gap adjusting mechanism is placed on to master cylinder inside, and compact structure, has saved installing space, adopt the features such as bulb plunger, the conical surface to guarantee the rotation of different screw pairs of different operating period simultaneously, guarantee the reliability of adjusting play.
Accompanying drawing explanation
Fig. 1 is structure sectional view figure of the present invention;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is the sectional view that in Fig. 1, guiding nut coordinates with stop collar.
Embodiment
The present invention is further detailed explanation for the embodiment who provides below in conjunction with accompanying drawing.
Referring to Fig. 1, 2, shown in 3, a kind of oil cylinder of parking with gap adjustment function, comprise cylinder body 1, back cylinder cover 2, front end housing 3, piston 4-4 and mounting flange 6, back cylinder cover 2 is fixedly connected with the two ends of cylinder body 1 respectively with front end housing 3, mounting flange 6 is fixedly connected with front end housing 3, on mounting flange 6, there is piston hole 6-1, piston stopper 5 is positioned at front end housing 3 and is sleeved on mounting flange 6, piston 4-4 is through front end housing 3, and coordinate with the piston hole 6-1 slippage of mounting flange 6, on front end housing 3, there is oil inlet hole 3-1, also there is adjusting axle 4-5, tapered sleeve 7, adjusting nut 8, guiding nut 9, conical surface lining 10, guide rod 11, stop collar 12 and elastic component 13, elastic component 13 is sleeved on tapered sleeve 7, one end of elastic component 13 and tapered sleeve 7 offset, the other end and back cylinder cover 2 offset or offset by pad 20 and back cylinder cover 2, adjusting nut 8 is positioned at tapered sleeve 7, and in adjusting nut 8 peripheries, there is annular and regulate conical surface 8-2, on tapered sleeve 7, there is the taper hole 7-1 that regulates conical surface 8-2 to coordinate with annular, one end of guide rod 11 and back cylinder cover 2 axial restraints, adjusting axle 4-5 and piston 4-4 load, the inner of adjusting axle 4-5 has external thread section 4-1, and there is pilot hole 4-2, the other end of guide rod 11 stretch in pilot hole 4-2 and with pilot hole 4-2 axial sliding fit, adjusting nut 8 is threaded with the external thread section 4-1 of adjusting axle 4-5, and one end of adjusting nut 8 has a plurality of bulb plunger 8-1, piston 4-4 and bulb plunger 8-1 offset, the other end of adjusting nut 8 has outside thread 8-3, the internal thread of guiding nut 9 is threaded with the outside thread 8-3 of adjusting nut 8, the endoporus of guiding nut 9 peripheries and tapered sleeve 7 is slidably matched, stop collar 12 is fixed on back cylinder cover 2, the inner hole sleeve of stop collar 12 is on guide rod 11, and by guide rod 11 and back cylinder cover 2 axial restraints, one end of stop collar 12 has spacing flange 12-1, one end of guiding nut 9 has inside spacing reducing 9-1, spacing flange 12-1 can offset with spacing reducing 9-1, conical surface lining 10 is fixedly set on back cylinder cover 2, the endoporus of the periphery of conical surface lining 10 and tapered sleeve 7 is slidably matched, and one end of conical surface lining 10 has lining taper hole 10-1, the periphery of guiding nut 9 has circular cone 9-3, circular cone 9-3 can stretch in lining taper hole 10-1.
Shown in Fig. 3,1, in order to produce suitable damping due to rotation and self-alignment, on described guiding nut 9, there are a plurality of bulb plunger 9-2 that radially extend, the endoporus wall of bulb plunger 9-2 and tapered sleeve 7 offsets.
Shown in Figure 2, for the convenient guide rod 11 that regulates, on described back cylinder cover 2, be fixed with fixed plate 14, on fixed plate 14, there is guide rod anti-rotating hole 14-1, and the outer end of guide rod 11 is hexagonal shape, the both sides, outer end of guide rod 11 are stuck in guide rod anti-rotating hole 14-1.
Shown in Figure 1, in order to make adjusting axle 4-5 wear-resisting, described adjusting axle 4-5 outer end is also set with wear-resistant sleeve 15.
Shown in Figure 1, in order to make adjusting axle 4-5 mounting or dismounting convenient, on described guide rod 11, key 16 is housed, the keyway 4-2-1 in the pilot hole 4-2 of key 16 and adjusting axle 4-5 is slidably matched.
Shown in Figure 1, in order better to make adjusting nut 8 can throw off tapered sleeve 7, described piston 4-4 offsets by thrust-bearing 4-3 and bulb plunger 8-1, and thrust-bearing 4-3 is needle roller thrust bearing.
Shown in Figure 1, in order to improve safety coefficient, also there is piston stopper 5, piston stopper 5 plays double-piston effect with piston 4-4, and piston stopper 5 is positioned at front end housing 3, and is sleeved on mounting flange 6.
Shown in Figure 1, in order to reach reset effect, described elastic component 13 is formed by stacking for several dish springs, between elastic component 13 and back cylinder cover 2, also has pad 20.
Shown in Figure 1, in order to increase wear resistance, described stop collar 12 passes through lining 12-2 encapsulation on guide rod 11.
Shown in Fig. 1,2,3, the present invention is when no wearing and tearing of brake lining, during normal use, when forming 4, piston loses oil pressure effect, oil pressure active force is less than elastic component 13, elastic component 13 promotes tapered sleeve 7 and slides left, and tapered sleeve 7 promotes piston composition 4 and adjusting nut 8 is moved to the left, and finally makes brake lining be attached on brake disc and realizes and braking; Piston forms 4 in oil pressure effect, and piston forms 4 promotion tapered sleeves 7 and adjusting nut 8 moves right, elastic component 13 compressions, and adjusting nut 8 drives guiding nuts 9 to be moved to the left, and realizes normal travelling state.
If brake lining wearing and tearing, the present invention needs the amount of compensate for wear, when piston forms 4, lose oil pressure effect, oil pressure active force is less than elastic component 13, and elastic component 13 promotes tapered sleeve 7 and slides left, tapered sleeve 7 promotes piston composition 4 and adjusting nut 8 is moved to the left, adjusting nut 8 drives guiding nut 9 to be moved to the left, and stop collar 12 stops guiding nut 9 to continue to be moved to the left, now guiding nut 9 rotations, the relative guiding nut 9 of adjusting nut 8 is moved to the left, and finally makes brake lining be attached on brake disc and realizes and braking, piston forms 4 in oil pressure effect, piston forms 4 promotion tapered sleeves 7 and adjusting nut 8 moves right, elastic component 13 compressions, adjusting nut 8 drives guiding nut 9 to move right, after the circular cone 9-3 of guiding nut 9 stretches in the lining taper hole 10-1 of conical surface lining 10, guiding nut 9 stop motions, conical surface lining 10 stops guiding nut 9 to continue to move right, when piston forms 4 continuation motion, guiding nut 9 can react on adjusting nut 8, make adjusting nut 8 be subject to resultant direction left, now due to the effect of the bulb plunger 8-1 on adjusting nut 8, make the compression of bulb plunger 8-1 inner spring, the adjusting conical surface 8-2 of adjusting nut 8 and the taper hole 7-1 of tapered sleeve 7 throw off, adjusting nut 8 rotations, adjusting nut 8 relative adjustment axles 16 are moved right, realize backlash compensation effect, and original state is got back in final adjusting nut 8 and guiding nut 9 rotations.
Claims (9)
1. the oil cylinder of parking with gap adjustment function, comprise cylinder body (1), back cylinder cover (2), front end housing (3), piston (4-4) and mounting flange (6), back cylinder cover (2) is fixedly connected with the two ends of cylinder body (1) respectively with front end housing (3), mounting flange (6) is fixedly connected with front end housing (3), on mounting flange (6), there is piston hole (6-1), piston (4-4) is through front end housing (3), and coordinate with piston hole (6-1) slippage of mounting flange (6), on front end housing (3), there is oil inlet hole (3-1), it is characterized in that: also there is adjusting axle (4-5), tapered sleeve (7), adjusting nut (8), guiding nut (9), conical surface lining (10), guide rod (11), stop collar (12) and elastic component (13), elastic component (13) is sleeved on tapered sleeve (7), one end of elastic component (13) and tapered sleeve (7) offset, the other end and back cylinder cover (2) offset or offset by pad (20) and back cylinder cover (2), adjusting nut (8) is positioned at tapered sleeve (7), and in the periphery of adjusting nut (8), there is annular and regulate the conical surface (8-2), on tapered sleeve (7), there is the taper hole (7-1) that regulates the conical surface (8-2) to coordinate with annular, one end of guide rod (11) and back cylinder cover (2) axial restraint, adjusting axle (4-5) and piston (4-4) load, the inner of adjusting axle (4-5) has external thread section (4-1), and there is pilot hole (4-2), the other end of guide rod (11) stretch in pilot hole (4-2) and with pilot hole (4-2) axial sliding fit, adjusting nut (8) is threaded with the external thread section (4-1) of adjusting axle (4-5), and one end of adjusting nut (8) has a plurality of bulb plungers (8-1), piston (4-4) offsets with bulb plunger (8-1), the other end of adjusting nut (8) has outside thread (8-3), the internal thread of guiding nut (9) is threaded with the outside thread (8-3) of adjusting nut (8), the endoporus of guiding nut (9) periphery and tapered sleeve (7) is slidably matched, stop collar (12) is fixed on back cylinder cover (2), the inner hole sleeve of stop collar (12) is on guide rod (11), and by guide rod (11) and back cylinder cover (2) axial restraint, one end of stop collar (12) has spacing flange (12-1), one end of guiding nut (9) has inside spacing reducing (9-1), spacing flange (12-1) can offset with spacing reducing (9-1), conical surface lining (10) is fixedly set on back cylinder cover (2), the endoporus of the periphery of conical surface lining (10) and tapered sleeve (7) is slidably matched, and one end of conical surface lining (10) has lining taper hole (10-1), the periphery of guiding nut (9) has circular cone (9-3), circular cone (9-3) can stretch in lining taper hole (10-1).
2. the oil cylinder of parking with gap adjustment function according to claim 1, is characterized in that: on described guiding nut (9), have a plurality of bulb plungers (9-2) that radially extend, bulb plunger (9-2) offsets with the endoporus wall of tapered sleeve (7).
3. the oil cylinder of parking with gap adjustment function according to claim 1, it is characterized in that: on described back cylinder cover (2), be fixed with fixed plate (14), on fixed plate (14), there is guide rod anti-rotating hole (14-1), and the outer end of guide rod (11) is hexagonal shape, the both sides, outer end of guide rod (11) are stuck in guide rod anti-rotating hole (14-1).
4. the oil cylinder of parking with gap adjustment function according to claim 1, is characterized in that: described adjusting axle (4-5) outer end is also set with wear-resistant sleeve (15).
5. the oil cylinder of parking with gap adjustment function according to claim 1, is characterized in that: key (16) is housed on described guide rod (11), and the keyway (4-2-1) in the pilot hole (4-2) of key (16) and adjusting axle (4-5) is slidably matched.
6. the oil cylinder of parking with gap adjustment function according to claim 1, is characterized in that: described piston (4-4) offsets by thrust-bearing (4-3) and bulb plunger (8-1), and thrust-bearing (4-3) is needle roller thrust bearing.
7. the oil cylinder of parking with gap adjustment function according to claim 1, is characterized in that: described elastic component (13) is formed by stacking for several dish springs.
8. the oil cylinder of parking with gap adjustment function according to claim 1, is characterized in that: also have piston stopper (5), piston stopper (5) is positioned at front end housing (3), and is sleeved on mounting flange (6).
9. the oil cylinder of parking with gap adjustment function according to claim 1, is characterized in that: described stop collar (12) passes through lining (12-2) encapsulation on guide rod (11).
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| CN201210354897.9A CN103671652B (en) | 2012-09-24 | 2012-09-24 | What have gap adjustment function parks oil cylinder |
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| CN201210354897.9A CN103671652B (en) | 2012-09-24 | 2012-09-24 | What have gap adjustment function parks oil cylinder |
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| CN103671652A true CN103671652A (en) | 2014-03-26 |
| CN103671652B CN103671652B (en) | 2015-12-23 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105276038A (en) * | 2015-11-05 | 2016-01-27 | 常州南车铁马科技实业有限公司 | Oil cylinder of rail vehicle braking clamp |
| CN105276037A (en) * | 2015-11-05 | 2016-01-27 | 常州南车铁马科技实业有限公司 | Hydraulic braking clamp for rail transit |
| CN105276039A (en) * | 2015-11-05 | 2016-01-27 | 常州南车铁马科技实业有限公司 | Rail vehicle braking clamp |
| CN105351405A (en) * | 2015-11-20 | 2016-02-24 | 常州南车铁马科技实业有限公司 | Cylinder for braking clamp |
| CN105370773A (en) * | 2015-11-30 | 2016-03-02 | 常州南车铁马科技实业有限公司 | Oil cylinder for railway vehicle brake clamp |
| WO2017092666A1 (en) * | 2015-11-30 | 2017-06-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake clamp device and vehicle using brake clamp device |
| WO2018041110A1 (en) * | 2016-08-29 | 2018-03-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder clearance adjustment mechanism and brake cylinder |
| CN109083952A (en) * | 2018-09-07 | 2018-12-25 | 南京中车浦镇海泰制动设备有限公司 | Hydraulic braking cylinder |
| CN109163038A (en) * | 2018-09-07 | 2019-01-08 | 南京中车浦镇海泰制动设备有限公司 | Slack adjuster |
| CN110203243A (en) * | 2019-06-10 | 2019-09-06 | 中车青岛四方车辆研究所有限公司 | A kind of elastic dynamic device, braking system and train |
| CN112721991A (en) * | 2020-12-29 | 2021-04-30 | 青岛思锐科技有限公司 | Parking brake cylinder and brake caliper unit |
| CN113294462A (en) * | 2021-04-29 | 2021-08-24 | 中车青岛四方车辆研究所有限公司 | Spring power unit |
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| CN105276038A (en) * | 2015-11-05 | 2016-01-27 | 常州南车铁马科技实业有限公司 | Oil cylinder of rail vehicle braking clamp |
| CN105276037A (en) * | 2015-11-05 | 2016-01-27 | 常州南车铁马科技实业有限公司 | Hydraulic braking clamp for rail transit |
| CN105276039A (en) * | 2015-11-05 | 2016-01-27 | 常州南车铁马科技实业有限公司 | Rail vehicle braking clamp |
| CN105276037B (en) * | 2015-11-05 | 2017-08-11 | 常州中车铁马科技实业有限公司 | Hydraulic braking clamp for track traffic |
| CN105351405A (en) * | 2015-11-20 | 2016-02-24 | 常州南车铁马科技实业有限公司 | Cylinder for braking clamp |
| CN108474429A (en) * | 2015-11-20 | 2018-08-31 | 中车戚墅堰机车车辆工艺研究所有限公司 | Oil cylinder and brake clamp device including the oil cylinder |
| WO2017084617A1 (en) * | 2015-11-20 | 2017-05-26 | 中车戚墅堰机车车辆工艺研究所有限公司 | Cylinder and brake clamp device including same |
| CN108474429B (en) * | 2015-11-20 | 2019-10-25 | 中车戚墅堰机车车辆工艺研究所有限公司 | Oil cylinder and brake clamp device including the oil cylinder |
| CN105351405B (en) * | 2015-11-20 | 2017-09-22 | 常州中车铁马科技实业有限公司 | Brake clamp oil cylinder |
| WO2017092666A1 (en) * | 2015-11-30 | 2017-06-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake clamp device and vehicle using brake clamp device |
| CN109073001B (en) * | 2015-11-30 | 2020-04-24 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake caliper device and vehicle using same |
| CN105370773A (en) * | 2015-11-30 | 2016-03-02 | 常州南车铁马科技实业有限公司 | Oil cylinder for railway vehicle brake clamp |
| CN109073001A (en) * | 2015-11-30 | 2018-12-21 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake clamp device and the vehicle for using the brake clamp device |
| CN105370773B (en) * | 2015-11-30 | 2018-12-25 | 常州中车铁马科技实业有限公司 | Rail vehicle braking clamp oil cylinder |
| WO2018041111A1 (en) * | 2016-08-29 | 2018-03-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder clearance adjustment mechanism, guide resistance adjusting module and brake cylinder |
| WO2018041110A1 (en) * | 2016-08-29 | 2018-03-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder clearance adjustment mechanism and brake cylinder |
| CN109163038A (en) * | 2018-09-07 | 2019-01-08 | 南京中车浦镇海泰制动设备有限公司 | Slack adjuster |
| CN109083952A (en) * | 2018-09-07 | 2018-12-25 | 南京中车浦镇海泰制动设备有限公司 | Hydraulic braking cylinder |
| CN110203243A (en) * | 2019-06-10 | 2019-09-06 | 中车青岛四方车辆研究所有限公司 | A kind of elastic dynamic device, braking system and train |
| CN112721991A (en) * | 2020-12-29 | 2021-04-30 | 青岛思锐科技有限公司 | Parking brake cylinder and brake caliper unit |
| CN112721991B (en) * | 2020-12-29 | 2022-05-17 | 中车制动***有限公司 | Parking brake cylinder and brake caliper unit |
| CN113294462A (en) * | 2021-04-29 | 2021-08-24 | 中车青岛四方车辆研究所有限公司 | Spring power unit |
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