CN110641508B - Anti-sticking wheel mechanism for toothed rail vehicle and belt type braking device with same - Google Patents
Anti-sticking wheel mechanism for toothed rail vehicle and belt type braking device with same Download PDFInfo
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- CN110641508B CN110641508B CN201910975712.8A CN201910975712A CN110641508B CN 110641508 B CN110641508 B CN 110641508B CN 201910975712 A CN201910975712 A CN 201910975712A CN 110641508 B CN110641508 B CN 110641508B
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- brake
- hanging
- belt
- seat
- braking
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 230000002265 prevention Effects 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000003449 preventive effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
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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
- B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
- B61H1/006—Band brakes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
An anti-sticking wheel mechanism for a rack-rail vehicle comprises a brake belt, a lifting lug, a hanging seat and a hanging spring; the top of the hanging seat is provided with a mounting hole, the lifting lug is mounted on the braking belt, one end of the hanging spring is connected with the hanging seat, and the other end of the hanging spring is connected with the lifting lug. Due to the adoption of the technical scheme, compared with the prior art, the self weight of the braking belt is overcome through the tensile force provided by the hanging tension spring, so that the condition that the braking belt is stuck to a wheel when the braking is relieved is avoided. The invention does not need to open a groove on the brake belt, thereby not influencing the structural strength of the brake belt, not reducing the friction coefficient and not influencing the braking effect. The sliding pair formed by the lifting lug and the groove can also prevent two groups of parallel brake belts from moving left and right to generate interference in the moving process. The adjusting bolt can realize the adjustment of the brake band release gap, an additional mounting bracket is not required to be added, and the adjusting bolt is suitable for the limited space on the bogie of the railway vehicle.
Description
Technical Field
The invention relates to the field of braking equipment, in particular to an anti-sticking wheel mechanism for a rack-rail vehicle and a belt type braking device with the same.
Background
The conventional belt type brake device is mainly applied to equipment such as mining machinery, ship anchors, winches and the like, and in order to ensure that the belt type brake device can effectively brake and relieve the brake, the brake torque and the brake shoe gap of the belt type brake device are main performance indexes influencing the performance of the belt type brake device. In a release state of the belt type brake device, a certain gap is kept between the brake pad and the brake drum so as to avoid adverse effects such as abnormal wear of the brake pad and reduction of service life caused by unnecessary friction.
When the brake band is relieved, the brake pad gap can be analyzed according to the theory to obtain the relation among the brake band end displacement, the brake shoe gap and the brake wrap angle: Δ ═ ε ═ α/2
In the formula: delta-braking band end displacement; epsilon-brake pad gap; alpha-braking belt wrap angle
When the braking band is released, the two ends of the braking band generate a delta displacement, and simultaneously the upper braking band and the lower braking band are opened around a hinged point. Because the braking band is composed of an upper alpha/2 arc and a lower alpha/2 arc and has certain rigidity, the gap between the brake pads can not be uniform when the braking band is opened. In addition, can lead to partial brake lining to paste the wheel under the gravity that braking band constitutes self, brake lining and brake drum contact promptly to make the brake lining appear different degree eccentric wear, influence brake lining life.
For some application occasions with low requirements and large installation space, the brake shoe clearance is ensured by adding supports and different positioning points below and above the brake band. In the field of rail transit, due to the extremely limited installation space of the vehicle running part, a wheel sticking prevention mechanism is provided for the belt brake device for the rail transit equipment vehicle.
Chinese patent CN 108644255a discloses a belt brake, comprising: the brake device comprises a brake band, a brake band supporting device, a brake link mechanism and a hydraulic oil cylinder. The brake band supporting device comprises a roller, a mounting seat, a plurality of connecting pieces and springs in one-to-one correspondence with the connecting pieces. The brake band supporting device is connected with the brake band through the connecting piece, and the roller is fixed on the mounting seat, penetrates through the groove in the brake band and is in contact with the brake wheel. The spring penetrates through the connecting piece, one end of the spring is in contact with the mounting seat, and the other end of the spring is in contact with the nut on the connecting piece. The spring is in a compressed state, and the gravity of the brake band can be overcome under the action of the spring force when the brake band is released, so that the brake band is prevented from sticking the wheel. Although the above patent can effectively avoid the problem that the brake belt sticks to the wheel, the groove needs to be formed on the brake belt at the installation position of the roller of the brake belt supporting device, which affects the structural strength of the brake belt and reduces the brake friction surface. In addition, in order to keep the roller and the brake wheel rolling relatively, the roller mounting bearing needs to be lubricated, lubricating oil inevitably enters the friction surfaces of the brake belt and the brake wheel, so that the friction coefficient is reduced, and the braking effect is influenced.
Disclosure of Invention
In order to solve the problem that the prior brake belt sticking prevention wheel device in the background art needs to open a groove on a brake belt at the installation position of a roller of a brake belt supporting device, so that the structural strength of the brake belt is influenced, the invention provides a sticking prevention wheel mechanism for a toothed rail vehicle, and the specific technical scheme is as follows.
An anti-sticking wheel mechanism for a rack-rail vehicle comprises a brake belt, a lifting lug, a hanging seat and a hanging spring; the top of the hanging seat is provided with a mounting hole, the lifting lug is mounted on the braking belt, one end of the hanging spring is connected with the hanging seat, and the other end of the hanging spring is connected with the lifting lug.
The hanging seat is installed on the tooth rail vehicle through the mounting hole, and the self weight of the brake band is overcome through the drawing force provided by the hanging spring, so that the brake band is prevented from being attached to the wheel when the brake is relieved. Compared with the brake band supporting device in the Chinese patent CN 108644255A, the invention does not need to open a groove on the brake band, thereby not influencing the structural strength of the brake band; in addition, the roller mounting bearing does not need to be lubricated, so that no lubricating oil exists, the friction coefficient cannot be reduced, and the braking effect cannot be influenced.
Preferably, the hanging seat comprises a supporting plate, a first mounting plate is arranged at the top of the supporting plate, a second mounting plate is arranged at the bottom of the supporting plate, and the first mounting plate and the second mounting plate are both vertical to the supporting plate and are both positioned at the same side of the supporting plate; the mounting hole is arranged on the first mounting plate.
Preferably, the middle part of the supporting plate is vertically provided with a reinforcing rib. The reinforcing ribs play a role in reinforcing the whole structure and prevent the hanging seat from deforming due to stress.
Preferably, the bottom of the second mounting plate is provided with a mounting seat, the mounting seat is provided with a guide seat, and the guide seat is provided with a longitudinal guide groove; one side of the lifting lug is fixedly connected with the brake band, and the other side of the lifting lug is embedded in the guide groove.
Preferably, an adjusting bolt is installed in the guide groove along the horizontal direction, and the tail end of the adjusting bolt abuts against the hanging lug.
Chinese patent CN 104455088A discloses an equal-backset equal-distance device of a belt brake and an installation and adjustment method thereof, comprising: brake band, braked wheel, back-off adjusting device and installing support. The mounting bracket is arranged on the periphery of the brake band, and a plurality of the back distance adjusting devices are fixed on the mounting bracket in a distributed mode and consist of a connecting plate, a bolt assembly, a locking nut and an adjusting bolt. The adjusting bolt is screwed into the connecting plate threaded hole, and the distance between the adjusting bolt and the braking belt meets the requirement of equal back distance and is locked by the locking nut.
The equal-back-distance equalizing device disclosed in the patent plays a certain role in solving the problems of brake pad opening and wheel sticking, equal back distance and the like, but an additional mounting bracket is required to be added on the periphery of a brake band, so that the equal-back-distance equalizing device obviously cannot adapt to the limited space on a railway vehicle bogie. In addition, the patent has a complex structure, needs a plurality of devices for adjusting the equal distance of the back, and is inconvenient to operate and maintain.
The end part of the adjusting bolt is in contact with the outer surface of the lifting lug, the brake band relief gap can be adjusted through the adjusting bolt, an additional mounting bracket is not required to be added, the adjusting bolt is suitable for a limited space on a railway vehicle bogie, the structure is simple, and the operation and the maintenance are convenient.
Preferably, the number of the braking belts, the lifting lugs, the hanging springs and the guide grooves is two, the two braking belts are arranged in parallel, and the two guide grooves are located at two ends of the guide seat; one side of each of the two lifting lugs is fixedly connected with the two brake belts, the other side of each of the two lifting lugs is embedded in the two guide grooves, and the other ends of the two hanging springs are connected with the two lifting lugs.
Through the two parallel brake belts, the width B of the brake belt can be increased, the specific pressure is reduced, the requirement of a vehicle on a large braking force on an oversized ramp is met, too large installation space cannot be occupied, and the occupied volume of the whole belt type brake device is reduced. On the other hand, because two brake belts are arranged, the brake belts are not easy to be tightly attached to the brake drum due to the fact that the width of a single belt is too wide, and heat dissipation of the friction pair is not influenced. The sliding pair consisting of the lifting lug and the guide groove can prevent the two groups of parallel brake belts from moving left and right to generate interference in the moving process.
Preferably, the hanging spring comprises two sets, each set comprising two springs; two groups of first hooks are arranged on the hanging seat and are symmetrically arranged around the central axis of the hanging seat, and each group of first hooks comprises an upper hook and a lower hook; the top of the lifting lug is provided with a second hook; one end of each group of two springs is respectively hung on the upper hook and the lower hook, and the other end of each group of two springs is hung on the second hook.
The upper hook and the lower hook are connected with the two springs, so that the brake belt can be subjected to a vertical tensile force and a horizontal tensile force, and the effect of the anti-sticking wheel is further enhanced.
Based on the same invention concept, the invention also provides a belt type brake device provided with the anti-sticking wheel mechanism for the rack rail vehicle, which comprises the anti-sticking wheel mechanism for the rack rail vehicle, a rack rail vehicle bogie framework and two brake drums, wherein the hanging seat is arranged on the rack rail vehicle bogie framework through the mounting hole, and the two brake belts are sleeved on the brake drums in parallel.
The top of mount pad is equipped with the mounting hole, the mount pad through the bolt and the mounting hole at top with mounting panel fixed connection. Therefore, the method for reducing the specific pressure by increasing the diameter of the brake drum in the traditional belt brake device is abandoned, the width B of the brake belt is increased and the specific pressure is reduced by arranging a plurality of brake belts in parallel, and the suspension seat is directly arranged on a bogie framework of the tooth track vehicle, so that the overlarge installation space is not occupied, and the occupied volume of the whole belt brake device is reduced. On the other hand, because a plurality of brake belts are arranged, the brake belts are not easy to be tightly attached to the brake drum due to the fact that the width of a single belt is too wide, and heat dissipation of the friction pair is not influenced.
Due to the adoption of the technical scheme, compared with the prior art, the self weight of the braking belt is overcome through the drawing force provided by the hanging tension spring, so that the condition that the braking belt is stuck to a wheel when the braking is relieved is avoided. The invention does not need to open a groove on the brake belt, thereby not influencing the structural strength of the brake belt. In addition, the roller mounting bearing does not need to be lubricated, so that no lubricating oil exists, the friction coefficient cannot be reduced, and the braking effect cannot be influenced. The sliding pair formed by the lifting lug and the groove can also prevent two groups of parallel brake belts from moving left and right to generate interference in the moving process. The adjusting bolt has the advantages that the end part of the adjusting bolt is in contact with the outer surface of the lifting lug, the gap of the brake band can be adjusted through the adjusting bolt, an additional mounting bracket is not required to be added, the adjusting bolt is suitable for a limited space on a bogie of a railway vehicle, the structure is simple, and the operation and the maintenance are convenient.
Drawings
FIG. 1 is a schematic structural diagram of an anti-sticking wheel mechanism for a rack-and-pinion vehicle according to the present invention;
FIG. 2 is a schematic structural view of a hanging seat of the present invention;
FIG. 3 is a front view of the guide housing of the present invention;
FIG. 4 is a schematic view of the connection of the braking band and the lifting lug of the present invention;
FIG. 5 is a side sectional view of FIG. 4;
fig. 6 is a schematic structural view of a belt brake device equipped with a patch wheel mechanism for a rack-and-pinion vehicle.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
As shown in fig. 1, the anti-sticking wheel mechanism for the rack-rail vehicle comprises a hanging seat 1, a hanging lug 2 and a hanging spring 3. As shown in fig. 2, the hanging seat 1 includes a supporting plate 11, a first mounting plate 12 is disposed on the top of the supporting plate 11, a second mounting plate 13 is disposed on the bottom of the supporting plate 11, and the first mounting plate 12 and the second mounting plate 13 are both perpendicular to the supporting plate 11 and are both located on the same side of the supporting plate 11; the first mounting plate 12 is provided with a mounting hole 14, and the middle part of the support plate 11 is vertically provided with a reinforcing rib 15.
As shown in fig. 1-3, the bottom of the second mounting plate 13 is provided with a mounting seat 4, the mounting seat 4 is provided with a guide seat 41, and two longitudinal guide grooves 42 are provided at two ends of the guide seat 41. An adjusting bolt 43 is horizontally installed in the guide groove 42.
As shown in fig. 1, 4, 5 and 6, two lifting lugs 2 are provided, and two braking bands 5 are provided; one side of each of the two lifting lugs 2 is fixedly mounted on the two braking belts through screws, and the other side of each of the two lifting lugs is embedded in the two guide grooves 42.
As shown in fig. 1, the hanging spring 3 includes two groups, each group includes two springs; two groups of first hooks are arranged on the hanging seat 1 and are symmetrically arranged around the central axis of the hanging seat 1, and each group of first hooks comprises an upper hook 16 and a lower hook 17; the top of the lifting lug 2 is provided with a second hook 18; one end of each of the two hanging springs is respectively hung on the upper hook 16 and the lower hook 17, and the other end is hung on the second hook 18.
Example two
As shown in fig. 6, the belt brake device equipped with the anti-sticking wheel mechanism for the rack-and-pinion vehicle comprises the anti-sticking wheel mechanism for the rack-and-pinion vehicle in the first embodiment, and further comprises a rack-and-pinion vehicle bogie framework 6 and a brake drum 7, wherein the hanging seat 1 is installed on the rack-and-pinion vehicle bogie framework 6 through the installation hole 14, and the two brake belts 5 are sleeved on the brake drum 7 in parallel.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a gear rack is anti-sticking wheel mechanism for vehicle which characterized in that: comprises a hanging seat, two braking belts, two lifting lugs and two hanging springs; the top of the hanging seat is provided with a mounting hole; the two brake belts are arranged in parallel, one ends of the two hanging springs are connected with the hanging seat, and the other ends of the two hanging springs are respectively connected with the two lifting lugs; the bottom of the hanging seat is provided with a guide seat, two longitudinal guide grooves are formed in two ends of the guide seat, one side of each of the two lifting lugs is fixedly connected with the two brake belts, and the other side of each of the two lifting lugs is embedded in the two guide grooves.
2. The wheel sticking prevention mechanism for a rack rail vehicle according to claim 1, characterized in that: the hanging seat comprises a supporting plate, a first mounting plate is arranged at the top of the supporting plate, a second mounting plate is arranged at the bottom of the supporting plate, and the first mounting plate and the second mounting plate are both perpendicular to the supporting plate and are both positioned at the same side of the supporting plate; the mounting hole is arranged on the first mounting plate.
3. The wheel sticking prevention mechanism for a rack rail vehicle according to claim 2, characterized in that: and the middle part of the supporting plate is vertically provided with a reinforcing rib.
4. The patch wheel mechanism for a rack vehicle according to claim 2 or 3, characterized in that: the bottom of second mounting panel is equipped with the mount pad, the guide holder is installed on the mount pad.
5. The patch wheel mechanism for a rack vehicle according to any one of claims 1 to 3, characterized in that: and an adjusting bolt is arranged in the guide groove along the horizontal direction, and the tail end of the adjusting bolt is abutted to the lifting lug.
6. The patch wheel mechanism for a rack vehicle according to any one of claims 1 to 3, characterized in that: the hanging springs comprise two groups, and each group comprises two springs; two groups of first hooks are arranged on the hanging seat and are symmetrically arranged around the central axis of the hanging seat, and each group of first hooks comprises an upper hook and a lower hook; the top of the lifting lug is provided with a second hook; one end of each group of two springs is respectively hung on the upper hook and the lower hook, and the other end of each group of two springs is hung on the second hook.
7. A belt brake apparatus equipped with the patch wheel preventive mechanism for a rack-toothed vehicle according to any one of claims 1 to 6, characterized in that: still include cogged rail vehicle bogie framework and brake drum, hang the seat and pass through the mounting hole is installed on the cogged rail vehicle bogie framework, two the braking area is established parallelly the cover is in on the brake drum.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910975712.8A CN110641508B (en) | 2019-10-15 | 2019-10-15 | Anti-sticking wheel mechanism for toothed rail vehicle and belt type braking device with same |
| BR112022005294A BR112022005294A2 (en) | 2019-10-15 | 2019-12-09 | Brake device and rack rail vehicle mounted with the same |
| PCT/CN2019/123981 WO2021072944A1 (en) | 2019-10-15 | 2019-12-09 | Belt brake device and rack rail vehicle equipped with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910975712.8A CN110641508B (en) | 2019-10-15 | 2019-10-15 | Anti-sticking wheel mechanism for toothed rail vehicle and belt type braking device with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110641508A CN110641508A (en) | 2020-01-03 |
| CN110641508B true CN110641508B (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910975712.8A Expired - Fee Related CN110641508B (en) | 2019-10-15 | 2019-10-15 | Anti-sticking wheel mechanism for toothed rail vehicle and belt type braking device with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110641508B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111216700B (en) * | 2020-01-08 | 2021-03-26 | 中车株洲电力机车有限公司 | Brake control method and device for rack rail train |
| CN113734227B (en) * | 2021-09-23 | 2022-08-12 | 中车株洲电力机车有限公司 | Belt type braking device and manual relieving mechanism thereof |
| CN114261383B (en) * | 2021-12-16 | 2022-10-14 | 中车株洲电力机车有限公司 | Gap indication method for toothed rail train belt type braking device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1635021A (en) * | 1925-07-03 | 1927-07-05 | J G Brill Co | Brake |
| CN201144985Y (en) * | 2007-12-27 | 2008-11-05 | 宁国聚隆实业有限公司 | Bidirectional acting band brake |
| CN202897917U (en) * | 2012-09-03 | 2013-04-24 | 天津山河装备开发有限公司 | Fast down-placing winch strip type brake mechanism |
| CN104455088A (en) * | 2014-12-12 | 2015-03-25 | 江西华伍制动器股份有限公司 | Clearance equalizing device of belt brake and mounting and adjusting method by clearance equalizing device |
| CN204878440U (en) * | 2015-07-08 | 2015-12-16 | 虞王君 | Electromagnetism utmost point band brake |
| CN108644255A (en) * | 2018-03-29 | 2018-10-12 | 武汉船用机械有限责任公司 | A kind of band brake |
-
2019
- 2019-10-15 CN CN201910975712.8A patent/CN110641508B/en not_active Expired - Fee Related
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| CN110641508A (en) | 2020-01-03 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220812 Address after: 266012 south side of Xinye road and west side of Herong Road, Qingdao high tech Industrial Development Zone, Qingdao, Shandong Province Patentee after: CRRC Brake System Co.,Ltd. Address before: 412001 Tianxin garden in Shi Feng District, Zhuzhou, Hunan Patentee before: CRRC ZHUZHOU LOCOMOTIVE Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 |