CN103912615A - Brake cylinder with clearance adjustment function - Google Patents
Brake cylinder with clearance adjustment function Download PDFInfo
- Publication number
- CN103912615A CN103912615A CN201410121951.4A CN201410121951A CN103912615A CN 103912615 A CN103912615 A CN 103912615A CN 201410121951 A CN201410121951 A CN 201410121951A CN 103912615 A CN103912615 A CN 103912615A
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- threaded guide
- piston
- cylinder
- guide sleeve
- spring
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Abstract
The invention discloses a brake cylinder with a clearance adjustment function. The brake cylinder comprises a cylinder casing, a piston, a sealing ring, a threaded guide sleeve, a threaded guide rod, a spring, a thrust ball bearing, a check ring and a corrugated pipe. The piston is provided with a sunk cavity, the threaded guide sleeve, the threaded guide rod, the spring, the thrust bearing and the check ring are all mounted in the sunk cavity, one end of the threaded guide rod is fixedly connected with the cylinder casing, the threaded guide sleeve and the threaded guide rod both provided with multiple non-self-locking threads and are in thread fit, the check ring is mounted on the piston, one end of the thrust ball bearing is butted against the check ring while the other end of the thrust ball bearing is butted against one end of the spring and can be butted against a step of the threaded guide sleeve, the other end of the spring is butted against the threaded guide sleeve, the threaded guide sleeve is butted against the bottom wall of the sunk cavity of the piston, the sealing ring is mounted on the inner wall of a cylinder hole of the cylinder casing, two ends of the corrugated pipe are respectively mounted on the cylinder casing and the piston, and an oil circuit on the cylinder casing is communicated with the cylinder hole of the cylinder casing and the sunk cavity of the piston. The brake cylinder is capable of automatically adjusting clearances, simple in structure and low in cost.
Description
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Technical field
The present invention 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 guarantee 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 object of the present invention 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 of the present invention 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.
Accompanying drawing explanation
The embodiment who provides below in conjunction with accompanying drawing is described in further detail the present invention.
Fig. 1 is the structural representation of the brake cylinder with clearance adjustment function of the present invention, 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 invention, 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, when the present invention uses, be arranged on the non-the present invention of support 13() upper, the oilhole 13-1 on support 13 is communicated with oil circuit 4-2 of the present invention.It is as follows that the present invention realizes 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, and 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 present invention of friction plate 12() brake disc (non-the present invention) 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 |
|---|---|---|---|
| CN201410121951.4A CN103912615A (en) | 2014-03-28 | 2014-03-28 | Brake cylinder with clearance adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410121951.4A CN103912615A (en) | 2014-03-28 | 2014-03-28 | Brake cylinder with clearance adjustment function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103912615A true CN103912615A (en) | 2014-07-09 |
Family
ID=51038525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410121951.4A Pending CN103912615A (en) | 2014-03-28 | 2014-03-28 | Brake cylinder with clearance adjustment function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103912615A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191113A (en) * | 2014-08-05 | 2014-12-10 | 芜湖环球汽车配件有限公司 | Gravity self-feed welding feeding mechanism |
| CN104259695A (en) * | 2014-08-05 | 2015-01-07 | 芜湖环球汽车配件有限公司 | Automatic sector-gear interval-type welding feeding mechanism |
| CN104455119A (en) * | 2014-12-17 | 2015-03-25 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake clearance adjuster |
| 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 |
| CN109058332A (en) * | 2018-09-13 | 2018-12-21 | 泉州市华祥工业设计有限公司 | Intelligent automatic compensation type deceleration device |
| CN111322331A (en) * | 2018-12-17 | 2020-06-23 | 中车戚墅堰机车车辆工艺研究所有限公司 | Clearance adjustment device for disc brake |
| CN112145571A (en) * | 2020-09-22 | 2020-12-29 | 长春一东离合器股份有限公司苏州研发中心 | Automobile clutch capable of automatically compensating abrasion |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3643524A1 (en) * | 1986-12-19 | 1988-06-30 | Teves Gmbh Alfred | Automatic adjusting device for a disc brake |
| CN2690660Y (en) * | 2003-12-09 | 2005-04-06 | 刘连忠 | Disc type braker pull out and compensation mechanism with parking braking |
| JP2006250325A (en) * | 2005-03-14 | 2006-09-21 | Nissin Kogyo Co Ltd | Disc brake device |
| CN1920324A (en) * | 2005-08-26 | 2007-02-28 | 日信工业株式会社 | Disk brake apparatus |
| CN203836041U (en) * | 2014-03-28 | 2014-09-17 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder with clearance adjusting function |
-
2014
- 2014-03-28 CN CN201410121951.4A patent/CN103912615A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3643524A1 (en) * | 1986-12-19 | 1988-06-30 | Teves Gmbh Alfred | Automatic adjusting device for a disc brake |
| CN2690660Y (en) * | 2003-12-09 | 2005-04-06 | 刘连忠 | Disc type braker pull out and compensation mechanism with parking braking |
| JP2006250325A (en) * | 2005-03-14 | 2006-09-21 | Nissin Kogyo Co Ltd | Disc brake device |
| CN1920324A (en) * | 2005-08-26 | 2007-02-28 | 日信工业株式会社 | Disk brake apparatus |
| CN203836041U (en) * | 2014-03-28 | 2014-09-17 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake cylinder with clearance adjusting function |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191113A (en) * | 2014-08-05 | 2014-12-10 | 芜湖环球汽车配件有限公司 | Gravity self-feed welding feeding mechanism |
| CN104259695A (en) * | 2014-08-05 | 2015-01-07 | 芜湖环球汽车配件有限公司 | Automatic sector-gear interval-type welding feeding mechanism |
| CN104259695B (en) * | 2014-08-05 | 2017-10-13 | 娄底市洪申科技有限公司 | Actively fan between cog gap type welding feed mechanism |
| CN104455119A (en) * | 2014-12-17 | 2015-03-25 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake clearance adjuster |
| 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 |
| CN109058332A (en) * | 2018-09-13 | 2018-12-21 | 泉州市华祥工业设计有限公司 | Intelligent automatic compensation type deceleration device |
| CN109058332B (en) * | 2018-09-13 | 2020-06-05 | 泉州市华祥工业设计有限公司 | Intelligent automatic compensation type speed reducer |
| CN111322331A (en) * | 2018-12-17 | 2020-06-23 | 中车戚墅堰机车车辆工艺研究所有限公司 | Clearance adjustment device for disc brake |
| CN112145571A (en) * | 2020-09-22 | 2020-12-29 | 长春一东离合器股份有限公司苏州研发中心 | Automobile clutch capable of automatically compensating abrasion |
| CN112145571B (en) * | 2020-09-22 | 2022-03-29 | 长春一东离合器股份有限公司苏州研发中心 | Automobile clutch capable of automatically compensating abrasion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Applicant after: CRRC QISHUYAN INSTITUTE CO., LTD. Applicant after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL CO., LTD. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Applicant before: Nanche Qisuyan Engine and Vehicle Technics Institute Co., Ltd. Applicant before: CSR Changzhou Tech-Mark Industrial Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 213011 Wuyi Road, Jiangsu, Changzhou, No. 258 Applicant after: CRRC QISHUYAN INSTITUTE CO., LTD. Applicant after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL CO., LTD. Address before: 213011 Wuyi Road, Qishuyan District, Jiangsu, China, No. 258, No. Applicant before: CRRC QISHUYAN INSTITUTE CO., LTD. Applicant before: CRRC CHANGZHOU TECH-MARK INDUSTRIAL CO., LTD. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140709 |