CN110667639A - Device for relieving parking brake action of railway vehicle - Google Patents
Device for relieving parking brake action of railway vehicle Download PDFInfo
- Publication number
- CN110667639A CN110667639A CN201911098698.4A CN201911098698A CN110667639A CN 110667639 A CN110667639 A CN 110667639A CN 201911098698 A CN201911098698 A CN 201911098698A CN 110667639 A CN110667639 A CN 110667639A
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- China
- Prior art keywords
- parking brake
- wire rope
- section
- hole
- protection hose
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H13/00—Actuating rail vehicle brakes
- B61H13/02—Hand or other personal actuation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flexible Shafts (AREA)
Abstract
The invention discloses a device for relieving the parking brake function of a railway vehicle, which comprises: the mounting seat is provided with a mounting through hole; the steel wire rope assembly penetrates through the mounting through hole; the rotating operation piece can rotate relative to the mounting seat, the rotating operation piece is circumferentially fixed with the first end of the steel wire rope assembly, and the steel wire rope assembly can transmit the torsion of the rotating operation piece. Because the torsion of rotating the manipulation piece is transmitted through the wire rope assembly, the wire rope assembly is flexible part, and the wire rope assembly can turn, so when the torsion needs the non-straight line transmission, the wire rope assembly can turn in order to satisfy the transmission requirement, has avoided using gear cingulum etc. to carry out the transmission, has simplified the structure, and occupation space is less. In addition, the relieving device for the parking brake function of the railway vehicle provided by the invention has the advantages of low processing cost, convenience in installation and convenience in maintenance.
Description
Technical Field
The invention relates to the technical field of traffic, in particular to a device for relieving the parking brake function of a railway vehicle.
Background
After the rail transit vehicle parks, the whole no power supply of vehicle, accessible spring force exerts the parking braking effect this moment, prevents that the vehicle from sauntering and escaping. Before the vehicle is moved next time, if the vehicle is windless and power-free, the parking brake can be relieved by operating the relieving device.
The existing parking brake release device drives a mechanism in a parking cylinder to act by pulling a release pull rope or similar pulling action, and also drives the mechanism in the parking cylinder to act by rotating action. To the mechanism action of parking in the jar through rotating the action drive, because the pivot of alleviating the device is not the linear transmission, mostly adopts gear, toothed belt etc. to carry out the transmission, leads to the transmission part more, and the structure is complicated and occupation installation space is great.
In summary, how to effectively solve the problems of complicated structure and more occupied space of the release device for the parking brake function of the railway vehicle is a problem which needs to be solved urgently by technical personnel in the field at present.
Disclosure of Invention
In view of the above, the present invention provides a device for alleviating a parking brake function of a railway vehicle, and the structural design of the device for alleviating a parking brake function of a railway vehicle can effectively solve the problems of complicated structure and large occupied space of the device for alleviating a parking brake function of a railway vehicle.
In order to achieve the purpose, the invention provides the following technical scheme:
a device for mitigating parking brake effort for a rail vehicle, comprising:
the mounting seat is provided with a mounting through hole;
the steel wire rope assembly penetrates through the mounting through hole;
the rotating operation piece can rotate relative to the mounting seat, the rotating operation piece is circumferentially fixed with the first end of the steel wire rope assembly, and the steel wire rope assembly can transmit the torsion of the rotating operation piece.
Preferably, in the above device for alleviating the parking brake function of the railway vehicle, the wire rope assembly includes a buffer sleeve and a wire flexible shaft, and one end of the wire flexible shaft is in compression joint with the buffer sleeve.
Preferably, in the device for alleviating the parking brake function of the railway vehicle, the alleviating sleeve includes a crimping section, a cylindrical section and a non-circular section which are fixedly connected in sequence, one end of the flexible steel wire shaft extends into the crimping section and is crimped and fixed, the cylindrical section is hermetically connected with the hole wall of the mounting through hole, and the non-circular section extends into the non-circular hole of the rotating control member to realize circumferential fixation.
Preferably, in the above device for alleviating the parking brake action of the railway vehicle, the alleviating sleeve further comprises a threaded section, and the threaded section is fixed with the non-circular section and is located at one end of the non-circular section, which is far away from the cylindrical section;
the relieving device also comprises an anti-falling nut in threaded connection with the threaded section, and the rotary operating part is positioned between the anti-falling nut and the mounting seat;
a first gasket is arranged between the rotating operation piece and the mounting seat.
Preferably, in the above device for alleviating the parking brake of the railway vehicle, a shoulder is disposed at a junction between the cylindrical section and the non-circular section, and the shoulder abuts against the rotary operating member to limit an axial position of the rotary operating member.
Preferably, in the above relieving device for the parking brake of the railway vehicle, a first protection hose is further sleeved on the flexible steel wire shaft;
the outside of first protection hose still is provided with clamping assembly.
Preferably, in the device for alleviating the parking brake function of the railway vehicle, the clamping assembly comprises a bushing and a special-shaped nut, the bushing and the special-shaped nut are sleeved on the outer side of the first protection hose, a hole, in contact with the bushing, of the special-shaped nut is a tapered hole, the bushing is provided with at least one opening, and when the special-shaped nut rotates, the inner wall of the tapered hole extrudes two sides of the opening so that the bushing clamps the first protection hose.
Preferably, in the above device for alleviating the parking brake action of the railway vehicle, the clamping assembly is arranged between the mounting seat and the first protection hose;
the first protection hose with still be provided with O type sealing washer between the mount pad, the bush with still be provided with the second gasket between the tip of mount pad.
Preferably, in the above relieving device for the parking brake of the railway vehicle, a second protection hose is further sleeved outside the first protection hose;
the first protection hose is a steel-lined rubber hose, and the second protection hose is a rubber pipe.
Preferably, in the above device for alleviating the parking brake action of the railway vehicle, the rotary operating member is a handwheel, and the handwheel or the mounting seat is provided with an operation mark.
When the release device for the parking brake function of the railway vehicle is applied, the parking brake is applied, if manual release is needed, the rotating control piece rotates anticlockwise to drive the steel wire rope assembly to rotate, then the release fork head seat in the parking cylinder is driven to rotate, the internal mechanism of the parking cylinder simultaneously acts, and then manual release of the parking brake is completed.
Because the torsion of rotating the manipulation piece is transmitted through the wire rope assembly, the wire rope assembly is flexible part, and the wire rope assembly can turn, so when the torsion needs the non-straight line transmission, the wire rope assembly can turn in order to satisfy the transmission requirement, has avoided using gear cingulum etc. to carry out the transmission, has simplified the structure, and occupation space is less. In addition, the relieving device for the parking brake function of the railway vehicle provided by the invention has the advantages of low processing cost, convenience in installation and convenience in maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a railway vehicle parking brake application mitigation apparatus provided by an embodiment of the present invention;
FIG. 2 is a schematic view of an assembly of a bowden cable and a parking cylinder according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a steel cable assembly according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a steel-lined rubber hose provided in an embodiment of the present invention;
FIG. 5 is a schematic view of a bushing according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a handwheel provided in an embodiment of the invention;
fig. 7 is a cross-sectional view of a mounting base provided in an embodiment of the present invention.
In fig. 1-7:
1-anti-drop nut, 2-first gasket, 3-second gasket, 4-bushing, 4 a-notch, 5-special-shaped nut, 6-steel lined rubber hose, 6 a-bushing groove, 6 b-steel ring, 7-rubber tube, 8-double-headed nut, 9-hand wheel, 10-oil seal, 11-relieving sleeve, 11 a-compression joint section, 11 b-cylindrical section, 11 c-non-circular section, 11 d-thread section, 12-mounting seat, 12 a-mounting through hole, 13-O type sealing ring, 14-steel wire flexible shaft, 14 a-circular section, 14 b-square section and 15-cylinder parking interface.
Detailed Description
The invention aims to provide a device for relieving the parking braking action of a railway vehicle, which has the structural design that the problems of complicated structure and more occupied space of the device for relieving the parking braking action of the railway vehicle can be effectively solved.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1-7, the parking brake mitigation device for a railway vehicle according to the present invention includes a mounting base 12, a cable assembly and a rotary operating member. The installation base 12 is provided with an installation through hole 12a, the steel wire rope assembly penetrates through the installation through hole 12a, the rotating operation piece can rotate relative to the installation base 12, the rotating operation piece is circumferentially fixed with the first end of the steel wire rope assembly, and the steel wire rope assembly can transmit torque force of the rotating operation piece. Namely, the rotating operation piece drives the steel wire rope component to synchronously rotate when rotating so as to realize that the steel wire rope component transmits the torque force of the rotating operation piece. The mount 12 is used to support the cable assembly and the rotary operator.
When the release device for the parking brake function of the railway vehicle is applied, the parking brake is applied, if manual release is needed, the rotating control piece rotates anticlockwise to drive the steel wire rope assembly to rotate, then the release fork head seat in the parking cylinder is driven to rotate, the internal mechanism of the parking cylinder simultaneously acts, and then manual release of the parking brake is completed.
Because the torsion of rotating the manipulation piece is transmitted through the wire rope assembly, the wire rope assembly is flexible part, and the wire rope assembly can turn, so when the torsion needs the non-straight line transmission, the wire rope assembly can turn in order to satisfy the transmission requirement, has avoided using gear cingulum etc. to carry out the transmission, has simplified the structure, and occupation space is less. In addition, the relieving device for the parking brake function of the railway vehicle provided by the invention has the advantages of low processing cost, convenience in installation and convenience in maintenance.
The mount 12 may be a circular casting. The mounting base 12 is provided with mounting holes for connection to a bogie or other component.
Further, the wire rope subassembly includes cushion collar and flexible steel wire axle 14, and the one end and the cushion collar crimping of flexible steel wire axle 14 to realize the relative fixed of cushion collar and flexible steel wire axle 14. The end part of the steel wire rope component with the buffer sleeve is a first end, and the buffer sleeve is positioned in the installation through hole 12a of the installation base 12.
The steel wire flexible shaft 14 is formed by weaving a plurality of strands of steel wires, has high flexibility and is suitable for torque transmission at different spatial positions. The wire flexible shaft 14 comprises a round section 14a and a square section 14b which are sequentially connected, the cross section of the square section 14b is square, and the square section 14b penetrates into a parking cylinder and then is inserted into a parking cylinder interface 15 for alleviating the rotation of the fork head seat, so that the parking brake effect is alleviated.
The steel wire rope assembly can also be in other structures, for example, only comprises the flexible steel wire rope 14, and one end of the flexible steel wire rope 14 is fixedly connected with the rotary operating piece.
Further, the release sleeve 11 comprises a crimping section 11a, a cylindrical section 11b and a non-circular section 11c which are fixedly connected in sequence. One end of the steel wire flexible shaft 14 extends into the crimping section 11a and is fixed in a crimping mode, namely one end of the steel wire flexible shaft 14 is fixed with the crimping section 11a in a crimping mode. The cylindrical section 11b is connected with the hole wall of the installation through hole 12a in a sealing manner, and specifically, an oil seal 10 is arranged between the cylindrical section 11b and the hole wall of the installation through hole 12a to prevent dust and water. The non-circular section 11c stretches into the non-circular hole of the rotating control piece to realize circumferential fixation, and the hole wall of the non-circular hole of the rotating control piece pushes the non-circular section 11c to rotate when the rotating control piece rotates, so that the buffering sleeve 11 and the steel wire flexible shaft 14 are driven to rotate, and torque transmission is realized. The section of the non-circular section 11c may be square, polygonal, irregular, etc., and the non-circular hole of the rotating operation member may be a square hole, polygonal hole, irregular hole, etc., which is not limited herein.
In the above embodiment, in order to facilitate the connection of the rotating operation member, the release sleeve 11 further includes a threaded section 11d, the threaded section 11d is fixed to the non-circular section 11c, and the threaded section 11d is located at an end of the non-circular section 11c away from the cylindrical section 11 b. Threaded section 11d stretches out the installation through-hole 12a of mount pad 12, should alleviate the device still include with threaded section 11d threaded connection's anticreep nut 1, rotate the manipulation piece and be located between anticreep nut 1 and the mount pad 12, anticreep nut 1 compresses tightly rotates the manipulation piece, so can prevent to rotate the manipulation piece and drop.
The buffering sleeve 11 may be an integral structure for easy manufacture. The damping sleeve 11 may also only include a pressing section 11a and a cylindrical section 11b fixedly connected in sequence, and the rotation control member is welded with the damping sleeve, which is not limited herein.
Further, a first gasket 2 is disposed between the rotating operation member and the mounting seat 12, and the first gasket 2 may be made of rubber, which is not limited herein.
In order to prevent the rotating operation piece from pressing the mounting seat 12 to affect the rotation flexibility of the rotating operation piece, a shaft shoulder is further arranged at the joint of the cylindrical section 11b and the non-circular section 11c, and the shaft shoulder abuts against the rotating operation piece to limit the axial position of the rotating operation piece. The end surface of the cylindrical section 11b is larger than the end surface of the non-circular section 11c to form a shaft shoulder.
The steel wire flexible shaft 14 is also sleeved with a first protection hose to protect the steel wire flexible shaft 14.
In order to prevent that first protection hose from deviating from, the outside of first protection hose still is equipped with clamping assembly, and clamping assembly presss from both sides tight first protection hose can.
Specifically, clamping assembly includes bush 4 and special-shaped nut 5, and bush 4 in the outside of first protection hose is established to bush 4 cover, and the hole that special-shaped nut 5 and bush 4 contact is the bell mouth, is provided with at least one opening 4a on bush 4, and the inner wall extrusion opening 4 a's of bell mouth both sides are so that opening 4a shrink when special-shaped nut 5 pivoted, and then bush 4 tightens up in order to press from both sides tight first protection hose. The profile nut 5 may be screwed with the mounting 12 or other components.
A clamping assembly can be arranged between the mounting seat 12 and the first protection hose, and the special-shaped nut 5 rotates and is in threaded connection with the mounting seat 12. Still be provided with second gasket 3 between the tip of bush 4 and the tip of mount pad 12, second gasket 3 still offsets with the tip of the bell mouth of dysmorphism nut 5 to carry on spacingly to dysmorphism nut 5, in order to prevent to press from both sides first protection hose tension.
An O-shaped sealing ring 13 is further arranged between the first protection hose and the mounting seat 12 to prevent dust and water. The O-ring 13 may be located inside the second gasket 3.
A clamping assembly can also be arranged between the first protection hose and the parking cylinder, the special-shaped nut 5 rotates and is in threaded connection with the parking cylinder, and the special-shaped nut 5 of the clamping assembly between the first protection hose and the parking cylinder can be a double-headed nut 8 and is not limited herein.
Of course, the clamping assembly may also be an elastic ring or the like to clamp the first protection hose to the mounting seat 12 or the parking cylinder, which is not limited herein.
Preferably, the second protection hose is sleeved outside the first protection hose to prevent foreign matter from attacking or corroding and the like.
The first protective hose may be a steel-lined rubber hose 6. The second protective hose may be a rubber tube 7.
Steel rings 6b are arranged in two ends of the steel-lined rubber hose 6. In addition, both ends of the steel-lined rubber hose 6 are provided with bushing grooves 6a for receiving the bushings 4 to prevent the bushings 4 from being axially displaced.
The rotary operating piece can be a hand wheel 9, and the hand wheel 9 can be a centrosymmetric part connected by 5 sections of same circular arcs. Or the rotary operating member may be a rocker, which is not limited herein.
For convenience of operation, the hand wheel 9 or the mounting 12 may also have an operating indicator thereon, which has the shape of an arrow to indicate the direction of rotation.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A railway vehicle parking brake effort mitigation device, comprising:
the mounting base (12), the mounting base (12) is provided with a mounting through hole (12 a);
a wire rope assembly passing through the mounting through-hole (12 a);
the rotating operation piece can rotate relative to the mounting seat (12), the rotating operation piece is circumferentially fixed with the first end of the steel wire rope assembly, and the steel wire rope assembly can transmit the torsion of the rotating operation piece.
2. A railway vehicle parking brake effort mitigation device according to claim 1, wherein the wire rope assembly comprises a buffer sleeve and a bowden cable (14), one end of the bowden cable (14) being crimped with the buffer sleeve.
3. The device for relieving parking brake of railway vehicles according to claim 2, wherein the relieving sleeve (11) comprises a crimping section (11a), a cylindrical section (11b) and a non-circular section (11c) which are fixedly connected in sequence, one end of the flexible steel cable (14) extends into the crimping section (11a) and is crimped and fixed, the cylindrical section (11b) is hermetically connected with the hole wall of the mounting through hole (12a), and the non-circular section (11c) extends into the non-circular hole of the rotating operating piece to realize circumferential fixation.
4. Device for mitigating the parking brake action of railway vehicles according to claim 3, characterized in that said mitigation sleeve (11) further comprises a threaded section (11d), said threaded section (11d) being fixed with said non-circular section (11c) and being located at the end of said non-circular section (11c) facing away from said cylindrical section (11 b);
the relieving device also comprises an anti-falling nut (1) in threaded connection with the threaded section (11d), and the rotating operating piece is positioned between the anti-falling nut (1) and the mounting seat (12);
a first gasket (2) is arranged between the rotating operating piece and the mounting seat (12).
5. Parking brake effort relief device for railway vehicles according to claim 3, characterized in that the junction of the cylindrical section (11b) with the non-circular section (11c) is provided with a shoulder which abuts against the rotary operator to limit its axial position.
6. The parking brake effort mitigation device for railway vehicles according to claim 2, wherein a first protection hose is further sleeved on the bowden cable (14);
the outside of first protection hose still is provided with clamping assembly.
7. The device for alleviating the parking brake effect of the railway vehicle as claimed in claim 6, wherein the clamping assembly comprises a bushing (4) and a special-shaped nut (5) which are sleeved on the outer side of the first protection hose, the hole of the special-shaped nut (5) contacted with the bushing (4) is a tapered hole, at least one notch (4a) is arranged on the bushing (4), and the inner wall of the tapered hole extrudes the two sides of the notch (4a) when the special-shaped nut (5) rotates so that the bushing (4) clamps the first protection hose.
8. Device for the alleviation of the parking brake effect of rail vehicles according to claim 7, characterized in that the clamping assembly is arranged between the mounting seat (12) and the first protection hose;
an O-shaped sealing ring (13) is further arranged between the first protection hose and the mounting seat (12), and a second gasket (3) is further arranged between the bushing (4) and the end portion of the mounting seat (12).
9. A railway vehicle parking brake effort mitigation device according to claim 6, wherein a second protection hose is further sleeved outside the first protection hose;
the first protection hose is a steel-lined rubber hose (6), and the second protection hose is a rubber pipe (7).
10. Parking brake effort mitigation device for rail vehicles according to claim 1, wherein the rotational manipulation member is a hand wheel (9) and wherein the hand wheel (9) or the mounting seat (12) has an operating indication thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911098698.4A CN110667639A (en) | 2019-11-12 | 2019-11-12 | Device for relieving parking brake action of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911098698.4A CN110667639A (en) | 2019-11-12 | 2019-11-12 | Device for relieving parking brake action of railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110667639A true CN110667639A (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911098698.4A Pending CN110667639A (en) | 2019-11-12 | 2019-11-12 | Device for relieving parking brake action of railway vehicle |
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| Country | Link |
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| CN (1) | CN110667639A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060016647A1 (en) * | 2003-09-09 | 2006-01-26 | Engle Thomas H | Automatic parking brake for a rail vehicle |
| CN106672013A (en) * | 2016-12-09 | 2017-05-17 | 中车长春轨道客车股份有限公司 | Railway vehicle parking brake manual release integrated system |
| CN107600103A (en) * | 2017-09-12 | 2018-01-19 | 中车唐山机车车辆有限公司 | Air brake hand relieving device |
| CN207594989U (en) * | 2017-11-21 | 2018-07-10 | 中车唐山机车车辆有限公司 | Device and rail vehicle are alleviated in a kind of air damping for rail vehicle |
| US20190031215A1 (en) * | 2017-07-26 | 2019-01-31 | Strato, Inc. | Truck mounted braking system for a railway car |
| CN109895803A (en) * | 2017-12-07 | 2019-06-18 | 中车戚墅堰机车车辆工艺研究所有限公司 | Rail vehicle Parking Brake Cylinders hand relieving drag-line |
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2019
- 2019-11-12 CN CN201911098698.4A patent/CN110667639A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060016647A1 (en) * | 2003-09-09 | 2006-01-26 | Engle Thomas H | Automatic parking brake for a rail vehicle |
| CN106672013A (en) * | 2016-12-09 | 2017-05-17 | 中车长春轨道客车股份有限公司 | Railway vehicle parking brake manual release integrated system |
| US20190031215A1 (en) * | 2017-07-26 | 2019-01-31 | Strato, Inc. | Truck mounted braking system for a railway car |
| CN107600103A (en) * | 2017-09-12 | 2018-01-19 | 中车唐山机车车辆有限公司 | Air brake hand relieving device |
| CN207594989U (en) * | 2017-11-21 | 2018-07-10 | 中车唐山机车车辆有限公司 | Device and rail vehicle are alleviated in a kind of air damping for rail vehicle |
| CN109895803A (en) * | 2017-12-07 | 2019-06-18 | 中车戚墅堰机车车辆工艺研究所有限公司 | Rail vehicle Parking Brake Cylinders hand relieving drag-line |
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Application publication date: 20200110 |
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