CN203836041U - Brake cylinder with clearance adjusting function - Google Patents
Brake cylinder with clearance adjusting function Download PDFInfo
- Publication number
- CN203836041U CN203836041U CN201420146500.1U CN201420146500U CN203836041U CN 203836041 U CN203836041 U CN 203836041U CN 201420146500 U CN201420146500 U CN 201420146500U CN 203836041 U CN203836041 U CN 203836041U
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- CN
- China
- Prior art keywords
- piston
- cylinder
- guide sleeve
- threaded guide
- cylinder shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 244000309464 bull Species 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract 2
- 230000006870 function Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010587 phase diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009711 regulatory function Effects 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model discloses a brake cylinder with a clearance adjusting function. The brake cylinder comprises a cylinder shell, a piston and a sealing ring, and further comprises a thread guide sleeve, a thread guide bar, a spring, a thrust ball bearing, a check ring and a corrugated pipe, wherein the piston is provided with a settling chamber, the thread guide sleeve, the thread guide bar, the spring, the thrust ball bearing and the check ring are all mounted in the settling chamber, one end of the thread guide bar is fixedly connected with the a cylinder shell, the thread guide sleeve and the thread guide bar are both provided with multipoint non-self-locking threads and the threads of the thread guide sleeve and the thread guide bar are matched, the check ring is mounted on the piston, one end of the thrust ball bearing is propped against the check ring, the other end of the thrust ball bearing is propped against one end of the spring and further can be propped against a step of the thread guide sleeve, the other end of the spring is propped against the thread guide sleeve, the thread guide sleeve is propped against the bottom wall of the settling chamber of the piston, the sealing ring is mounted on the inner wall of a cylinder hole of the cylinder shell, two ends of the corrugated pipe are respectively mounted on the cylinder shell and the piston, and an oil line on the cylinder shell is communicated with the cylinder hole of the cylinder shell and the settling chamber of the piston. The brake cylinder with the clearance adjusting function disclosed by the utility model can automatically adjust clearances and has a simple structure.
Description
Technical field
The utility model relates to a kind of break, the brake cylinder that especially a kind of vehicle brake is used.
Background technique
Along with heavy vehicle is towards maximization future development, more and more higher to the requirement of break, particularly quick response, reliability and the maintainability of break to be had higher requirement, most break is regulatory function very close to each other still.And the brake cylinder structure partly with regulatory function is all comparatively complicated, installing space is large, and manufacture difficulty and cost are all higher.
Through retrieving: patent of invention " gap adjuster of railway vehicles " (application number: 85107151.1) disclose the automatic slack adjuster using in a kind of railway vehicle braking unit, this regulator has an axially movable push rod, a screw axis that can transmit braking force not rotating, an adjusting nut that mode with not self-locking is meshed with screw axis and rotates against bearing, a tubular spring acting between screw mandrel.Adjusting nut to transmit braking force, wherein has a locking bushing not rotating only under the effect of locking spring in main clutch place and the clutch of push rod phase, moves axially command range, and in solenoidoperated cluthes place and the clutch of adjusting nut phase.Patent of invention " brake clearance adjustment apparatus " (application number: 200810243589.2) disclose a kind of brake clearance adjustment apparatus, this device comprises the stop collar being fixedly connected with body, in the endoporus of stop collar, plug-in mounting forms the thrust nut of circumferential constraint, the self-locking thread end of spinning adjusting screw in the tapped hole of thrust nut, at the bottom of the other end of adjusting screw stretches into and is resisted against hole in the endoporus in regulator body, between adjusting screw and regulator body, be connected by one-way clutch mechanism, between the two ends of adjusting screw, be shaped with the non-self-locking thread contrary with self-locking thread rotation direction, spinning adjusting nut on non-self-locking thread, adjusting nut deviates between the one side of stop collar and the other end of adjusting screw elastic component is housed, between regulator body and body, form circumferentially constraint.Model utility " a kind of oil cylinder of parking with gap adjustment function " (application number: 201220486046.5) disclose a kind of oil cylinder of parking with gap adjustment function, piston offsets by thrust-bearing and bulb plunger, the other end of adjusting nut has outside thread, the internal thread of guiding nut is connected 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, in the deep enough lining taper hole of circular cone energy.
Although the related clearance adjustment mechanism of above patent respectively has feature, wherein first patent (application number: 85107151.1) adopted two clutches (solenoidoperated cluthes and main clutch) and the screw mandrel of not self-locking to carry out the adjustment of control gap, and its axial dimension is very large; Second patent (application number: the self-locking thread that 200810243589.2) overrunning clutch of employing is contrary with rotation direction and the adjusting screw of non-self-locking thread realize the adjustment of brake clearance; The 3rd patent (application number: 201220486046.5) adopt bulb plunger to ensure that the annular of adjusting nut regulates the conical surface can throw off tapered sleeve and rotate when stressed, rotates to realize by different screw pairs the function that gap is adjusted.Generally more complicated all of its structure of above patent, bulk is large, is unsuitable for the occasion very compact to structural requirement.Wherein first patent axial dimension is large especially, the overrunning clutch of second patent easily weares and teares and causes fault in the time that installation precision is not high, and the 3rd patent structure is complicated especially, all high especially to the requirement of design, accuracy of manufacturing and assembling, physical dimension is also large, and cost is high.
Summary of the invention
The purpose of this utility model is to provide the one can automatic regulating gap, simple in structure, cost is low and reliable brake cylinder.
The technological scheme that realizes above-mentioned purpose is: a kind of brake cylinder with clearance adjustment function, comprise cylinder shell, piston and seal ring, also comprise threaded guide sleeve, threaded guide rod, spring, thrust ball bearing, back-up ring and bellows, the cylinder hole of described piston and cylinder shell is slidably matched, piston has heavy chamber, described threaded guide sleeve, threaded guide rod, spring, thrust ball bearing and back-up ring are all contained in heavy chamber, one end of threaded guide rod is fixedly connected with cylinder shell, threaded guide sleeve and threaded guide rod are all with the non-self-locking thread of bull and both screw-thread fit, described back-up ring is contained on piston, one end and the back-up ring of described thrust ball bearing offset, one end of the other end and spring offsets and can offset with the step of threaded guide sleeve, the other end and the threaded guide sleeve of spring offset, the diapire in the heavy chamber of threaded guide sleeve and piston offsets, described seal ring is contained in the cylinder hole inwall of cylinder shell, the two ends of described bellows are contained in respectively on cylinder shell and piston, on described cylinder shell, there is oil circuit, oil circuit is communicated with the cylinder hole of cylinder shell and the heavy chamber of piston.
Described cylinder shell has threaded block, and one end of threaded guide rod has screw rod, and screw rod is fixedly connected with threaded block screw thread.
On described cylinder shell, exhaust joint is housed, exhaust joint communicates with the cylinder hole of cylinder shell.
The overhanging end of described piston is fixed with thermal baffle.
The front end of described threaded guide sleeve has shoulder block, and the other end of described spring and the shoulder block of threaded guide sleeve offset.Technique effect: oil cylinder described in the utility model has gap automatic regulation function, the response time that can greatly improve system, and simple in structure, low cost of manufacture, reliable performance, easy for installation.
Brief description of the drawings
The embodiment who provides below in conjunction with accompanying drawing is described in further detail the utility model.
Fig. 1 is the structural representation of the brake cylinder with clearance adjustment function of the present utility model, i.e. phase diagram when piston-retraction;
Fig. 2 is another phase diagram of Fig. 1, phase diagram when piston stretches out.
Embodiment
As Fig. 1, shown in 2, a kind of brake cylinder with clearance adjustment function of the present utility model, comprise cylinder shell 4, piston 2 and seal ring 1, also comprise threaded guide sleeve 9, threaded guide rod 6, spring 7, thrust ball bearing 5, back-up ring 3 and bellows 11, described piston 2 is slidably matched with the cylinder hole 4-1 of cylinder shell 4, piston 2 has heavy chamber 2-1, described threaded guide sleeve 9, threaded guide rod 6, spring 7, thrust ball bearing 5 and back-up ring 3 are all contained in heavy chamber 2-1, one end of threaded guide rod 6 is fixedly connected with cylinder shell 4, threaded guide sleeve 9 and threaded guide rod 6 are all with the non-self-locking thread of bull and both screw-thread fit, described back-up ring 3 is contained on piston 2, one end of described thrust ball bearing 5 and back-up ring 3 offset, one end of the other end and spring 7 offsets and can offset with the step 9-1 of threaded guide sleeve 9, the other end of spring 7 and threaded guide sleeve 9 offset, threaded guide sleeve 9 offsets with the diapire of the heavy chamber 2-1 of piston 2, described seal ring 1 is contained in the cylinder hole 4-1 inwall of cylinder shell 4, the two ends of described bellows 11 are contained in respectively on cylinder shell 4 and piston 2, on described cylinder shell 4, there is oil circuit 4-2, oil circuit 4-2 is communicated with the cylinder hole 4-1 of cylinder shell 4 and the heavy chamber 2-1 of piston 2.
As shown in Figure 1, 2, described cylinder shell 4 has threaded block 4-3, and one end of threaded guide rod 6 has screw rod 6-1, and screw rod 6-1 is fixedly connected with threaded block 4-3 screw thread.
As shown in Figure 1, 2, on described cylinder shell 4, exhaust joint 8 is housed, exhaust joint 8 communicates with the cylinder hole 4-1 of cylinder shell 4.
As shown in Figure 1, 2, the overhanging end of described piston 2 is fixed with thermal baffle 10.
As shown in Figure 1, 2, the front end of described threaded guide sleeve 9 has shoulder block 9-2, and the shoulder block 9-2 of the other end of described spring 7 and threaded guide sleeve 9 offsets.
As shown in Figure 1, 2, the utility model is arranged on the non-the utility model of support 13(while use) upper, the oilhole 13-1 on support 13 is communicated with oil circuit 4-2 of the present utility model.It is as follows that the utility model is realized gap automatic regulation function process: when oil circuit 4-2 does not lead to oil pressure, under the effect of spring 7, the left end of threaded guide sleeve 9 contacts with the diapire of the heavy chamber 2-1 of piston 2, thrust ball bearing 5 separates with the step 9-1 place of threaded guide sleeve 9, there is one section of primary clearance x, as shown in Figure 1.After the logical oil pressure of oil circuit 4-2, promote piston 2 and be moved to the left, thrust ball bearing 5 and then back-up ring 3 is moved to the left, until thrust ball bearing 5 is met the step 9-1 of threaded guide sleeve 9, now piston 2 and thrust ball bearing 5 have moved the distance of x, and threaded guide sleeve 9 does not temporarily move.Due to the effect of pressure, piston 2 continues to be moved to the left the distance of Δ x, promotes the non-the utility model of friction plate 12() brake disc (non-the utility model) is compressed, thrust ball bearing 5 promotes threaded guide sleeve 9 and is moved to the left Δ x, threaded guide sleeve 9 rotates to an angle, and thrust ball bearing 5 rotates.When after pressure removal, under the effect of spring 7, thrust ball bearing 5 and piston 2 can be replied the distance of x to the right, until the diapire of the heavy chamber 2-1 of piston 2 contacts with the left end of threaded guide sleeve 9, piston 2 is moved to the left the distance of Δ x after once braking like this, compensation wears away gap, reaches the function of automatic regulating gap.
Claims (5)
1. one kind has the brake cylinder of clearance adjustment function, comprise cylinder shell (4), piston (2) and seal ring (1), it is characterized in that: also comprise threaded guide sleeve (9), threaded guide rod (6), spring (7), thrust ball bearing (5), back-up ring (3) and bellows (11), described piston (2) is slidably matched with the cylinder hole (4-1) of cylinder shell (4), piston (2) has heavy chamber (2-1), described threaded guide sleeve (9), threaded guide rod (6), spring (7), thrust ball bearing (5) and back-up ring (3) are all contained in heavy chamber (2-1), one end of threaded guide rod (6) is fixedly connected with cylinder shell (4), threaded guide sleeve (9) and threaded guide rod (6) are all with the non-self-locking thread of bull and both screw-thread fit, described back-up ring (3) is contained on piston (2), one end of described thrust ball bearing (5) and back-up ring (3) offset, one end of the other end and spring (7) offsets and can offset with the step of threaded guide sleeve (9) (9-1), the other end of spring (7) and threaded guide sleeve (9) offset, threaded guide sleeve (9) offsets with the diapire in the heavy chamber (2-1) of piston (2), described seal ring (1) is contained in cylinder hole (4-1) inwall of cylinder shell (4), the two ends of described bellows (11) are contained in respectively on cylinder shell (4) and piston (2), on described cylinder shell (4), there is oil circuit (4-2), oil circuit (4-2) is communicated with the cylinder hole (4-1) of cylinder shell (4) and the heavy chamber (2-1) of piston (2).
2. the brake cylinder with clearance adjustment function according to claim 1, it is characterized in that: described cylinder shell (4) has threaded block (4-3), one end of threaded guide rod (6) has screw rod (6-1), and screw rod (6-1) is fixedly connected with threaded block (4-3) screw thread.
3. the brake cylinder with clearance adjustment function according to claim 1, is characterized in that: exhaust joint (8) is housed on described cylinder shell (4), and exhaust joint (8) communicates with the cylinder hole (4-1) of cylinder shell (4).
4. the brake cylinder with clearance adjustment function according to claim 1, is characterized in that: the overhanging end of described piston (2) is fixed with thermal baffle (10).
5. the brake cylinder with clearance adjustment function according to claim 1, is characterized in that: the front end of described threaded guide sleeve (9) has shoulder block (9-2), and the shoulder block (9-2) of the other end of described spring (7) and threaded guide sleeve (9) offsets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420146500.1U CN203836041U (en) | 2014-03-28 | 2014-03-28 | Brake cylinder with clearance adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420146500.1U CN203836041U (en) | 2014-03-28 | 2014-03-28 | Brake cylinder with clearance adjusting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836041U true CN203836041U (en) | 2014-09-17 |
Family
ID=51513886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420146500.1U Expired - Fee Related CN203836041U (en) | 2014-03-28 | 2014-03-28 | Brake cylinder with clearance adjusting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912615A (en) * | 2014-03-28 | 2014-07-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder with clearance adjustment function |
| CN107407361A (en) * | 2015-03-11 | 2017-11-28 | Ｋｙｂ株式会社 | Braking device |
-
2014
- 2014-03-28 CN CN201420146500.1U patent/CN203836041U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912615A (en) * | 2014-03-28 | 2014-07-09 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder with clearance adjustment function |
| CN107407361A (en) * | 2015-03-11 | 2017-11-28 | Ｋｙｂ株式会社 | Braking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Co-patentee after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Patentee after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Co-patentee before: CSR CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Patentee before: CSR QISHUYAN INSTITUTE Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 213011 Wuyi Road, Jiangsu, Changzhou, No. 258 Co-patentee after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Patentee after: CRRC QISHUYAN INSTITUTE Co.,Ltd. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Co-patentee before: CRRC CHANGZHOU TECH-MARK INDUSTRIAL Co.,Ltd. Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 |