CN103318157A - Parking brake mechanism for railway vehicle - Google Patents

Parking brake mechanism for railway vehicle Download PDF

Info

Publication number
CN103318157A
CN103318157A CN2013102992312A CN201310299231A CN103318157A CN 103318157 A CN103318157 A CN 103318157A CN 2013102992312 A CN2013102992312 A CN 2013102992312A CN 201310299231 A CN201310299231 A CN 201310299231A CN 103318157 A CN103318157 A CN 103318157A
Authority
CN
China
Prior art keywords
ratchet
sleeve
parking brake
rotation
cylinder cap
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.)
Granted
Application number
CN2013102992312A
Other languages
Chinese (zh)
Other versions
CN103318157B (en
Inventor
臧传相
朱新宇
吴明赵
张东升
欧阳坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Zhongche Town Haitai Brake Equipment Co Ltd
Original Assignee
Nanjing Puzhen Haitai Brake Equipments Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Puzhen Haitai Brake Equipments Co Ltd filed Critical Nanjing Puzhen Haitai Brake Equipments Co Ltd
Priority to CN201310299231.2A priority Critical patent/CN103318157B/en
Publication of CN103318157A publication Critical patent/CN103318157A/en
Application granted granted Critical
Publication of CN103318157B publication Critical patent/CN103318157B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Braking Arrangements (AREA)

Abstract

The invention provides a parking brake mechanism for a railway vehicle. The parking brake mechanism comprises a cylinder block, a cylinder cover, a piston, a screw and a pressing spring, wherein a rotational ratchet wheel cylinder is installed in the cylinder cover, the top of the ratchet wheel cylinder is provided with a single-way ratchet wheel, the lower end of the screw is connected with a stretching rod, the center of the piston is provided with a rotation-preventing sleeve, a rotation-prevention bush which is matched with the screw through a feather key is fixed inside the rotation-preventing sleeve, a rotational sleeve nut is sleeved on the outside of the rotation-preventing sleeve, the sleeve nut and the rotation-preventing sleeve are locked in the axial direction, the inner side of the sleeve nut is in thread fit with the screw, and the outer side of the sleeve nut is matched with the ratchet wheel cylinder through a feather key. According to the parking brake mechanism, a traditional parking braking mechanism is changed, and the brand-new parking brake mechanism is designed to achieve various functions. The parking brake mechanism is simple in structure and easy to manufacture, the screw will not rotate in the whole process, and the screw is matched with the sleeve nut and the single-way ratchet wheel to achieve the functions.

Description

A kind of used for rail vehicle parking brake mechanism
Technical field
The present invention relates to a kind of used for rail vehicle parking brake mechanism, be used for realizing the ramp parking brake function of guideway vehicle, belong to railway vehicle braking systems technology field.
Background technology
Used for rail vehicle parking brake mechanism mainly is in order to guarantee that vehicle has the parking brake requirement under certain slope condition.Parking brake generally is to realize by parking in the cylinder application force of energy-storaging spring.Applying and alleviating of parking brake can utilize pressurized air to realize: apply parking brake when discharging pressurized air, alleviate parking brake when being filled with pressurized air.In addition, apply parking brake power in order to alleviate by parking the accident that cylinder causes unusually, parking brake mechanism need to be with hand relieving mechanism.
The complex structure of existing parking brake mechanism, high to the device fabrication accuracy requirement, and the patented technology grasp is most of in the foreign enterprise hand, is unfavorable for the production domesticization of product.
Summary of the invention
Technical matters to be solved by this invention is, overcomes the above-mentioned shortcoming of prior art, provides a kind of used for rail vehicle parking brake mechanism, by the various functions of simple and reliable winding machine parking brake mechanism.
In order to solve above technical matters, used for rail vehicle parking brake provided by the invention mechanism, composition comprises: cylinder body, cylinder cap, piston, screw mandrel, stage clip, it is characterized in that: the ratchet cylinder that is provided with rotating top band single direction ratchet in the described cylinder cap, described screw mandrel lower end is connected with extension bar, described piston central authorities are provided with the anti-rotation sleeve, be fixed with the anti-rotation lining that cooperates by feather key with screw mandrel in the anti-rotation sleeve, described anti-rotation bush outer sleeve is equipped with rotating sleeve nut, described sleeve nut and anti-rotation sleeve are locked in the axial direction, sleeve nut's inboard cooperates with wire rod thread, and sleeve nut's the outside cooperates with the ratchet cylinder by feather key.
In order to solve above technical matters, the present invention further improves and is:
1, described sleeve nut's bottom has radially boss, described piston has the positioning seat that is arranged at outside the sleeve nut, described sleeve nut's boss is supported on the piston by angular contact bearing, described positioning seat is fixed with hold-down nut, hold-down nut is pushed down the upper surface of boss by thrust ball bearing, make sleeve nut and anti-rotation sleeve locked in the axial direction.
2, this parking brake mechanism also has reset tension spring, and described cylinder cap upper end is fixed with cylinder cap, and the upper end of cylinder cap, extension bar is held respectively at described reset tension spring two ends.
3, described cylinder cap central authorities are fixed with suspension ring, and suspension ring are caught in the upper end of described reset tension spring.
4, be provided with torsion spring pin, reduction torsion spring, ratchet on the described cylinder cap, described reduction torsion spring is contained on the torsion spring pin, ratchet is contained between cylinder cap and the cover plate by bearing pin, and the two ends of reduction torsion spring prop up respectively cylinder cap, ratchet, and the head of described ratchet props up the ratchet of single direction ratchet.
The present invention changes traditional parking brake mechanism, has designed one and has overlapped brand-new mechanism to realize the various functions to parking brake mechanism, and this mechanism is simple in structure, is easy to make.Leading screw does not rotate in whole process, by cooperating of leading screw and sleeve nut and single direction ratchet, realizes various functions.
When the sleeve nut was subject to making progress application force, responsive to axial force can bear large load on thrust ball bearing; When the sleeve nut was subject to downward application force, responsive to axial force was born the application force of less at angular contact bearing by angular contact bearing.The sleeve nut can freely rotate relative to piston, and is locked and can not be moved on the axial direction.Screw mandrel splines at external cylindrical surface, and screw mandrel cooperates with sleeve nut's spiral, is inserted in the anti-rotation lining, and screw mandrel can only up-and-down movement, can not rotate.Single direction ratchet and ratchet form single direction ratchet mechanism, only allow ratchet one-way to rotate, and other direction is locked.Can be by manually pulling open ratchet, ratchet can freely rotate by any direction.Under normal circumstances, under the effect of torsion spring, the ratchet ratchet of fitting all the time only allows one direction to rotate.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the used for rail vehicle parking brake master of mechanism TV structure schematic diagram of the present invention.
Fig. 2 is the plan structure schematic diagram of used for rail vehicle parking brake of the present invention mechanism.
Under the number in the figure schematic diagram:
The 1-extension bar; The 2-seal ring; The 3-boss; The 4-guide ring; The 5-angular contact bearing; The 6-thrust ball bearing; The 7-hold-down nut; 8-sleeve nut; The 9-single direction ratchet; The 10-stage clip; The 11-circlip; The 12-cylinder cap; 13-torsion spring pin; The 14-reduction torsion spring; The 15-ratchet; The 16-reset tension spring; The 17-suspension ring; The 18-cover plate; The 19-pad; 20-ratchet cylinder; The 21-cylinder body; The 22-screw mandrel; 23-anti-rotation lining; The 24-piston; The 25-positioning seat; 26-anti-rotation sleeve; The 27-wedge; The 28-bearing pin.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described.
Such as Fig. 1, shown in Figure 2, the present embodiment used for rail vehicle parking brake mechanism, composition comprises: cylinder body 21, cylinder cap 11, piston 24, screw mandrel 22, stage clip 10, be provided with the ratchet cylinder 20 of rotating top band single direction ratchet 9 in the cylinder cap 11, screw mandrel 22 lower ends are connected with extension bar 1, piston 24 central authorities are provided with anti-rotation sleeve 26, be fixed with the anti-rotation lining 23 that cooperates by feather key with screw mandrel 22 in the anti-rotation sleeve 26, be set with rotating sleeve nut 8 outside the anti-rotation sleeve 26, described sleeve nut 8 is locked in the axial direction with anti-rotation sleeve 26, sleeve nut 8 inboard and screw mandrel 22 screws thread fit, sleeve nut 8 the outside cooperates with ratchet cylinder 20 by feather key.In the present embodiment, sleeve nut 8 bottom has radially boss 3, piston 24 has the positioning seat 25 that is arranged at outside the sleeve nut 8, described sleeve nut's 8 boss 3 is supported on the piston 24 by angular contact bearing 5, positioning seat 25 is fixed with hold-down nut 7, hold-down nut 7 is pushed down the upper surface of boss 3 by thrust ball bearing 6, make sleeve nut 8 and anti-rotation sleeve 26 locked in the axial direction.Be provided with torsion spring pin 13, reduction torsion spring 14, ratchet 15 on the cylinder cap 11, described reduction torsion spring 14 is contained on the torsion spring pin 13, ratchet 15 is contained between cylinder cap 11 and the cover plate 18 by bearing pin 28, the two ends of reduction torsion spring 14 prop up respectively cylinder cap 11, ratchet 15, and the head of described ratchet 15 props up the ratchet of single direction ratchet 9.
As shown in Figure 1, cylinder cap is fixed on cylinder body 21 tops by circlip 11, and withstand by stage clip 10 inside.Cover plate is contained in the cylinder cap top, is lined with pad 19 between cover plate and the ratchet cylinder.Piston 24 is equipped with the guide ring 4 that cooperates with extension bar 1, and the seal ring 2 that cooperates with extension bar 1 is equipped with in the cylinder body below.
For in reseting procedure, give leading screw a more direct reset force, this parking brake mechanism, also designed reset tension spring 16, cylinder cap 11 upper ends are fixed with cylinder cap 11, cylinder cap 11 central authorities are fixed with suspension ring 17, and suspension ring 17 are caught in the upper end of reset tension spring 16, and the upper end of extension bar 1 is held in reset tension spring 16 lower ends.In the inflation reseting procedure, the extension bar lower end is by wedge 27 jackings, and the extension bar upper end is subjected to reset tension spring 16 pulling force and promotes in addition, thereby helps screw mandrel and extension bar Rapid reset.
This used for rail vehicle parking brake mechanism action process prescription is as follows:
Parking cylinder inflates for the first time: be filled with pressurized air to parking cylinder, when application force and the making a concerted effort during balance of stage clip 10 of pressure-acting on piston 24, after continuing to be filled with pressurized air, piston 24 promotes the upward movement (rotation of single direction ratchet 9 one directions) that sleeve nut 8 drives 20 rotations of ratchet cylinder; Screw mandrel 22 is motionless in the process.After cylinder cap 12 is arrived on hold-down nut 7 tops, release.
Park the cylinder exhaust: park cylinder and discharge pressurized air, piston 24 moves downward under the tension force effect of spring 10, the rotation direction of single direction ratchet 9 is by locked at this moment, sleeve nut 8 can't rotate, thereby sleeve nut 8 drives screw mandrel 22 and moves downward, extension bar 1 withstands wedge 27 downwards, realizes parking brake.
Park the cylinder inflation: again be filled with pressurized air to parking cylinder, when application force and the making a concerted effort during balance of stage clip 10 of pressure-acting on piston 24, after continuing to be filled with pressurized air, screw mandrel 22 is under reset tension spring 16 effects, piston 24, sleeve nut 8 and screw mandrel 22 whole upward movements, the realization parking brake is alleviated.
In the manner described above, circulation is given and to be parked cylinder inflation exhaust, can realize applying and alleviating of parking brake.In the parking brake process, (park the cylinder exhaust), manually pull open ratchet 15, this moment, single direction ratchet 9 and ratchet cylinder 20 were in free rotary state, under the effect of reset tension spring 16 and brake cylinder spring, sleeve nut 8 drives single direction ratchet 9 and ratchet cylinder 20 backward rotation, and screw mandrel 22 upwards resets.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.

Claims (5)

1. used for rail vehicle parking brake mechanism, composition comprises: cylinder body, cylinder cap, piston, screw mandrel, stage clip, it is characterized in that: the ratchet cylinder that is provided with rotating top band single direction ratchet in the described cylinder cap, described screw mandrel lower end is connected with extension bar, described piston central authorities are provided with the anti-rotation sleeve, be fixed with the anti-rotation lining that cooperates by feather key with screw mandrel in the anti-rotation sleeve, described anti-rotation bush outer sleeve is equipped with rotating sleeve nut, described sleeve nut and anti-rotation sleeve are locked in the axial direction, sleeve nut's inboard cooperates with wire rod thread, and sleeve nut's the outside cooperates with the ratchet cylinder by feather key.
2. used for rail vehicle parking brake according to claim 1 mechanism, it is characterized in that: described sleeve nut's bottom has radially boss, described piston has the positioning seat that is arranged at outside the sleeve nut, described sleeve nut's boss is supported on the piston by angular contact bearing, described positioning seat is fixed with hold-down nut, hold-down nut is pushed down the upper surface of boss by thrust ball bearing, make sleeve nut and anti-rotation sleeve locked in the axial direction.
3. used for rail vehicle parking brake according to claim 1 mechanism, it is characterized in that: also have reset tension spring, described cylinder cap upper end is fixed with cylinder cap, and the upper end of cylinder cap, extension bar is held respectively at described reset tension spring two ends.
4. used for rail vehicle parking brake according to claim 3 mechanism is characterized in that: described cylinder cap central authorities are fixed with suspension ring, and suspension ring are caught in the upper end of described reset tension spring.
5. used for rail vehicle parking brake according to claim 1 mechanism, it is characterized in that: be provided with torsion spring pin, reduction torsion spring, ratchet on the described cylinder cap, described reduction torsion spring is contained on the torsion spring pin, ratchet is contained between cylinder cap and the cover plate by bearing pin, the two ends of reduction torsion spring prop up respectively cylinder cap, ratchet, and the head of described ratchet props up the ratchet of single direction ratchet.
CN201310299231.2A 2013-07-16 2013-07-16 Parking brake mechanism for railway vehicle Active CN103318157B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310299231.2A CN103318157B (en) 2013-07-16 2013-07-16 Parking brake mechanism for railway vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310299231.2A CN103318157B (en) 2013-07-16 2013-07-16 Parking brake mechanism for railway vehicle

Publications (2)

Publication Number Publication Date
CN103318157A true CN103318157A (en) 2013-09-25
CN103318157B CN103318157B (en) 2015-04-15

Family

ID=49187300

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310299231.2A Active CN103318157B (en) 2013-07-16 2013-07-16 Parking brake mechanism for railway vehicle

Country Status (1)

Country Link
CN (1) CN103318157B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015090344A1 (en) * 2013-12-19 2015-06-25 Wabco Europe Bvba Brake cylinder
CN104742933A (en) * 2015-04-24 2015-07-01 四川制动科技股份有限公司 Spring brake
CN111071289A (en) * 2020-01-02 2020-04-28 中车青岛四方车辆研究所有限公司 Parking cylinder, parking brake unit, brake clamp unit, brake system and vehicle
CN112849201A (en) * 2021-03-15 2021-05-28 中车株洲电力机车有限公司 Rail vehicle and parking brake device thereof
CN112879519A (en) * 2021-01-05 2021-06-01 重庆大学 Single-drive worm screw device for outputting linear and rotary motion
WO2022142541A1 (en) * 2021-01-04 2022-07-07 中车青岛四方车辆研究所有限公司 Parking brake cylinder and brake caliper unit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473143A1 (en) * 1980-01-02 1981-07-10 Sab Piston cylinder air brake for railway vehicle - has compressed air driven parking brake piston and spring-mounted secondary piston with common piston rod(BR 21.7.81)
US6431329B1 (en) * 2000-09-14 2002-08-13 New York Air Brake Corporation Fluid parking brake for a rail vehicle air brake cylinder
US20050155827A1 (en) * 2004-01-08 2005-07-21 New York Air Brake Corporation Parking brake system including a brake cylinder
CN101595019A (en) * 2007-01-31 2009-12-02 韦伯太克控股公司 The car stopping brake member that is used for brake system of rail vehicle
CN202082317U (en) * 2011-01-28 2011-12-21 中国铁道科学研究院机车车辆研究所 Compact disc-shaped braking clamp of rail transit car braking system
CN102795240A (en) * 2012-09-07 2012-11-28 中国铁道科学研究院机车车辆研究所 Manual release device for foundation brake of rail transit vehicle
CN203402179U (en) * 2013-07-16 2014-01-22 南京浦镇海泰制动设备有限公司 Parking brake mechanism for rail vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473143A1 (en) * 1980-01-02 1981-07-10 Sab Piston cylinder air brake for railway vehicle - has compressed air driven parking brake piston and spring-mounted secondary piston with common piston rod(BR 21.7.81)
US6431329B1 (en) * 2000-09-14 2002-08-13 New York Air Brake Corporation Fluid parking brake for a rail vehicle air brake cylinder
US20050155827A1 (en) * 2004-01-08 2005-07-21 New York Air Brake Corporation Parking brake system including a brake cylinder
CN101595019A (en) * 2007-01-31 2009-12-02 韦伯太克控股公司 The car stopping brake member that is used for brake system of rail vehicle
CN202082317U (en) * 2011-01-28 2011-12-21 中国铁道科学研究院机车车辆研究所 Compact disc-shaped braking clamp of rail transit car braking system
CN102795240A (en) * 2012-09-07 2012-11-28 中国铁道科学研究院机车车辆研究所 Manual release device for foundation brake of rail transit vehicle
CN203402179U (en) * 2013-07-16 2014-01-22 南京浦镇海泰制动设备有限公司 Parking brake mechanism for rail vehicle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015090344A1 (en) * 2013-12-19 2015-06-25 Wabco Europe Bvba Brake cylinder
US9981646B2 (en) 2013-12-19 2018-05-29 Wabco Europe Bvba Brake cylinder
CN104742933A (en) * 2015-04-24 2015-07-01 四川制动科技股份有限公司 Spring brake
CN111071289A (en) * 2020-01-02 2020-04-28 中车青岛四方车辆研究所有限公司 Parking cylinder, parking brake unit, brake clamp unit, brake system and vehicle
CN111071289B (en) * 2020-01-02 2020-12-01 中车青岛四方车辆研究所有限公司 Parking cylinder, parking brake unit, brake clamp unit, brake system and vehicle
WO2022142541A1 (en) * 2021-01-04 2022-07-07 中车青岛四方车辆研究所有限公司 Parking brake cylinder and brake caliper unit
CN112879519A (en) * 2021-01-05 2021-06-01 重庆大学 Single-drive worm screw device for outputting linear and rotary motion
CN112879519B (en) * 2021-01-05 2022-05-27 重庆大学 Single-drive worm screw device for outputting linear and rotary motion
CN112849201A (en) * 2021-03-15 2021-05-28 中车株洲电力机车有限公司 Rail vehicle and parking brake device thereof

Also Published As

Publication number Publication date
CN103318157B (en) 2015-04-15

Similar Documents

Publication Publication Date Title
CN103318157A (en) Parking brake mechanism for railway vehicle
CN103511517B (en) Energy-storage type park unit brake cylinder
CN207621220U (en) A kind of rail traffic vehicles parking brake device
CN202732795U (en) Energy-storage-type park-unit brake cylinder
CN102795240B (en) Manual release device for foundation brake of rail transit vehicle
CN203402179U (en) Parking brake mechanism for rail vehicle
US20140151162A1 (en) "Spring-Applied Parking Brake with Ball Screw Reset Mechanism"
CN103101555B (en) Mechanical type hand braking gripping device of railway vehicle steering frame
CN201506367U (en) Park unit brake cylinder
CN103481906A (en) Manual release device for parking brake cylinder of light rail vehicle
CN104442906B (en) A kind of bilateral hand relieving device
CN104742933B (en) A kind of spring-loaded brake
CN201296273Y (en) Brake mechanism of baby carriage
CN2551528Y (en) Spring Energy storage parking brake for railway locomotive
CN107443309A (en) One kind parks cylinder provision for disengagement and method
CN204341090U (en) Plug-typely pull relieving apparatus
CN203267842U (en) Telescopic hanging-holding device for public transport vehicle
CN203805877U (en) Folding rescue trailer with brake device
CN204264173U (en) A kind of bilateral hand relieving device
CN108944991B (en) Low pressure parking cylinder that alleviates
CN206521252U (en) A kind of radome lifting device
CN109838482A (en) Rail traffic vehicles parking brake device and its hand relieving method
CN105276038B (en) The oil cylinder of rail vehicle braking clamp
CN101423066A (en) Train luggage rack
CN207029154U (en) A kind of electronic brake device for Multifunctional all-terrain vehicle

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 211800 Nanjing City, Pukou Province Economic Development Zone, Jiangsu Road, No. 10

Patentee after: Nanjing Zhongche town Haitai Brake Equipment Co Ltd

Address before: 211800 Nanjing City, Pukou Province Economic Development Zone, Jiangsu Road, No. 10

Patentee before: Nanjing Puzhen Haitai Brake Equipment Co., Ltd.