CN105620508A - Tread brake unit and hand relieving device thereof - Google Patents
Tread brake unit and hand relieving device thereof Download PDFInfo
- Publication number
- CN105620508A CN105620508A CN201610004025.8A CN201610004025A CN105620508A CN 105620508 A CN105620508 A CN 105620508A CN 201610004025 A CN201610004025 A CN 201610004025A CN 105620508 A CN105620508 A CN 105620508A
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- CN
- China
- Prior art keywords
- gland
- pull bar
- hands
- handle
- ratchet
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- 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.)
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Classifications
-
- 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)
- Braking Elements And Transmission Devices (AREA)
Abstract
The invention discloses a hand relieving device of a tread brake unit. The hand relieving device comprises a middle body for parking of a brake cylinder, a gland and a pull rod; the gland is fixed to the side wall of the middle body, and the pull rod can be movably arranged in the gland and the middle body; and a spring for generating parking of brake force is arranged in the axial direction of the pull rod. A ratchet wheel pin which is used for being engaged with ratchets on a ratchet wheel disc is connected to the inner end of the pull rod, and the top of the pull rod is a smooth curved surface; a relieving handle is further included, is arranged on the outer surface of the gland and is in transmission connection with the outer end of the pull rod; and the outer surface of the relieving handle is tightly attached to the outer surface of the gland. According to the hand relieving device, the top of the ratchet wheel pin is arranged to be a smooth curved surface, friction and wear between the ratchet pin and a ratchet wheel are reduced, scrap iron is reduced, and damage and clamping of the scrap iron to parts are avoided; and meanwhile, the labor-saving characteristic of the lever principle is used, and the pull rod can be easily pulled out through the relieving handle. The invention further discloses the tread brake unit with the hand relieving device. The beneficial effects of the tread brake unit are the same with those of the hand relieving device.
Description
Technical field
The present invention relates to locomotive braking system technical field, particularly to the hands relieving apparatus of a kind of tread braking unit. The invention still further relates to a kind of tread braking unit including above-mentioned hands relieving apparatus.
Background technology
Along with the development of China's mechanical industry, increasing plant equipment is to be used widely.
For locomotive, owing to the speed of service of locomotive is high, therefore its brakes is particularly important for the safety of passenger. The tread braking unit that band is parked is the core institution in locomotive braking system, and the hands relieving apparatus in tread braking unit is one of its important component part, is mainly used in thoroughly alleviating the spring parking brake power that parking brake device produces.
But, owing to the spring parking brake power of hands relieving apparatus of the prior art is bigger, staff pulls draw ring to be the mode by pulling out outward when carrying out hand relieving, the elastic force direction conllinear of its power thrusts and spring, namely the resistance overcoming spring completely is needed thoroughly to alleviate, very hard, and be also easy to when pulling force is excessive cause that draw ring damages. And, the ratchet pin planform of hands relieving apparatus of the prior art and material, the ratchet Fast Wearing that its top is easily rotated, and the produced iron filings that wear and tear easily enter the clamping stagnation and inordinate wear that cause its parts inside tread braking unit, cause that hands mitigation capability is bad, cause traffic safety accident.
Therefore, how to enable workman's personnel's easy manipulation hands relieving apparatus, and reduce the abrasion between parts, be those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
It is an object of the invention to provide the hands relieving apparatus of a kind of tread braking unit, it is possible to make staff's easy manipulation, thoroughly alleviate parking brake power, and effectively reduce the degree of wear of ratchet pin. It is a further object of the present invention to provide a kind of tread braking unit including above-mentioned hands relieving apparatus.
For solving above-mentioned technical problem, the present invention provides the hands relieving apparatus of a kind of tread braking unit, including the intermediate of Parking Brake Cylinders, gland and pull bar, described gland is fixed on the sidewall of described intermediate, described pull bar is movably arranged in described gland and intermediate, and along the axial of described pull bar, its outer wall is provided with the spring for producing parking brake power, the inner end of described pull bar is connected to the ratchet pin for being meshed with the ratchet on the ratchet cover plate, and the top of described ratchet pin is smooth surface; Also including alleviating handle, described alleviation handle is arranged at the outer surface of described gland, and is rotationally connected with the outer end of described pull bar, and the outer surface of the outer surface of described alleviation handle and described gland is close to.
Preferably, described alleviation handle includes the long end and the short end that are separated by rotating fulcrum, and the outer surface of described short end is for alleviating the smooth surface of frictional force between described gland outer surface.
Preferably, also include being arranged at described long end end position, being easy to the draw ring of fingertip grasp.
Preferably, described pull bar extending transversely through along it and is provided with alignment pin, one end of described spring is fixed on the inner surface of described gland, and the other end is connected with the both ends of described alignment pin.
Preferably, it is rotationally connected by split pin between described alleviation handle and described pull bar.
The present invention also provides for a kind of tread braking unit, and including Parking Brake Cylinders and the hands relieving apparatus that is connected with described Parking Brake Cylinders, wherein, described hands relieving apparatus is the hands relieving apparatus described in any of the above-described item.
The hands relieving apparatus of tread braking unit provided by the present invention, including intermediate, gland, pull bar, spring, ratchet pin gentle solution handle. Wherein, intermediate is the vitals of Parking Brake Cylinders, gland is fixed on the sidewall of intermediate, and pull bar is movably disposed in gland and intermediate, spring is along the outer wall being axially disposed within pull bar of pull bar, mainly for generation of parking brake power, to thoroughly alleviate this parking brake power, it is necessary to firmly extract pull bar outward. Ratchet pin is arranged on the inner end (namely injecting the end in intermediate) of pull bar, the ratchet being mainly used in and be arranged on the ratchet cover plate in intermediate is meshed, and the top of ratchet pin (part being namely mainly meshed with ratchet) is smooth surface. Alleviate handle to be arranged on the outer surface of gland, and be rotationally connected with the outer end of pull bar simultaneously, and the outer surface alleviating handle also ties patch with the outer surface of gland. The hands relieving apparatus of tread braking unit provided by the present invention, owing to the top of the ratchet pin of pull bar inner end is smooth surface, in time being meshed with the ratchet on the ratchet cover plate, it is possible to effectively reduce frictional force, it is to avoid produce iron filings. And the outer end owing to alleviating the pull bar of handle is rotationally connected, therefore operator can lift alleviation handle, in the process, the outer surface of the outer surface and gland of alleviating handle is close to and extrudes mutually, staff exerts oneself gradually, pull bar is just extracted gradually outward so that the ratchet pin being positioned at pull bar inner end is connected with ratchet cover plate disengaging, thoroughly alleviates parking brake power. Wherein, operator are operated in the one end alleviating handle, take full advantage of lever principle labour-saving characteristic, are extracted by pull bar easily. Therefore, the hands relieving apparatus of tread braking unit provided by the present invention, by the top of the ratchet pin of pull bar inner end is set to smooth surface, reduce the friction between the ratchet cover plate engaging transmission, it is to avoid produce pig scrap; And extract pull bar by alleviating handle, make full use of province's force characteristic of lever principle, clasp, compared to prior art adopts, the mode that draw ring axially directly pulls out outward along pull bar, greatly reduce the strength needed for staff's hand relieving parking brake power.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the overall structure schematic diagram of a kind of detailed description of the invention provided by the present invention.
Wherein, in Fig. 1:
Intermediate 1, gland 2, pull bar 3, spring 4, ratchet pin 5, alleviate handle 6, long end 601, short end 602, draw ring 7, alignment pin 8, split pin 9.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to the overall structure schematic diagram that Fig. 1, Fig. 1 are a kind of detailed description of the invention provided by the present invention.
In a kind of detailed description of the invention provided by the present invention, the hands relieving apparatus of tread braking unit mainly includes intermediate 1, gland 2, pull bar 3, spring 4, ratchet pin 5 is gentle solves handle 6.
Wherein, intermediate 1 is the important composition parts of Parking Brake Cylinders, and is provided with the ratchet cover plate wherein, and the ratchet cover plate is provided with numerous ratchet, for being meshed with ratchet pin 5. gland 2 is fixed on the sidewall of intermediate 1, its structure likeness in form end cap. pull bar 3 is the vitals of the present invention, and it is movably disposed in gland 2 and intermediate 1, is namely provided with the hole of interconnection in intermediate 1 and gland 2, is available for pull bar 3 and slides wherein. spring 4 is axially arranged along pull bar 3, it is clear that being arranged between the sidewall of spring 4 and intermediate 1, gland 2 endoporus, this spring is mainly for generation of parking brake power. if so thinking thoroughly alleviation parking brake power, it is necessary to overcome the elastic force of this spring, namely firmly pull bar 3 outward. ratchet pin 5 is arranged on the inner end of pull bar 3, and under hands relieving apparatus normal state, ratchet pin 5 is meshed with the ratchet on the ratchet cover plate in intermediate 1, normal transmission. it is important that, features of shape in order to avoid the ratchet Fast Wearing that the top of ratchet pin in prior art is easily rotated, the top of ratchet pin 5 is set to smooth surface by the present invention, the normal transmission of ratchet mechanism can not only be ensured by the mode in face with face friction, friction ratchet pin and ratchet between and abrasion to ratchet pin top can also be greatly reduced by the friction mode between face and face, significantly reduce iron filings generation amount, it is to avoid it enters the clamping stagnation causing parts inside tread braking unit simultaneously. and, in order to facilitate the operation of operator opponent's relieving apparatus simultaneously, the present invention is also additionally arranged alleviation handle 6, this alleviation handle 6 is arranged on the outer surface of gland 2, and the outer surface of the outer surface and gland 2 alleviating handle 6 is close to, alleviates handle 6 simultaneously and be also rotationally connected with the outer end of the pull bar 3 stretching out gland 2 outer surface. from overall structure, alleviate handle 6 with pull bar 3 in 90 �� of angles. so arrange, operator can grasp the one end alleviating handle 6, then whole alleviation handle 6 is lifted gently, outer end owing to alleviating handle 6 and pull bar 3 is rotationally connected, therefore alleviate handle 6 now to have to be rotationally connected the trend a little carrying out circumference rotary motion for fulcrum, but simultaneously because the outer surface of the outer surface and gland 2 alleviating handle 6 is close to, now extrude mutually between two faces, alleviate handle 6 and just cannot be carried out rotary motion, but the point extruded mutually with the other end (namely holding the opposite end of end with operator) alleviating handle 6 and gland 2 outer surface carries out rotating (and being also that one direction rotates) for support. so, lifting alleviation handle 6 gradually operator, when namely alleviation handle 6 gradually rotates, pull bar 3 is just (along it axially outward) mobile gradually outward under it drives. now being arranged on the ratchet pin 5 of pull bar 3 inner end also outward movment gradually, until ratchet pin 5 completely disengages from the ratchet on the ratchet cover plate and is connected, parking brake pressure is just thoroughly alleviated.
In sum, the hands relieving apparatus of tread braking unit provided by the present invention, by the top of the ratchet pin 5 of pull bar 3 inner end is set to smooth surface, reduce the friction and wear between the ratchet cover plate engaging transmission, greatly reduce iron filings generation amount, it is to avoid tread braking unit inside is caused damage and the clamping stagnation of parts; Alleviation handle 6 by with pull bar 3 being 90 �� simultaneously, make full use of province's force characteristic of lever principle, easily pull bar 3 is extracted outward, thoroughly alleviate parking brake pressure, clasp, compared to prior art adopts, the mode that draw ring axially directly pulls out outward along pull bar 3, greatly reduce the strength needed for staff's hand relieving parking brake power.
Alleviating the strength needed for handle 6 to reduce operation further, the alleviation handle 6 in the present embodiment includes two parts: long end 601 and short end 602, the demarcation line at these two ends be alleviate handle 6 and pull bar 3 be rotationally connected a little, be also the fulcrum in lever principle. Wherein long end 601 is mainly used in staff hand-held, and short end 602 is close to for the outer surface with gland 2 and extrudes mutually. And the outer surface of short end 602 is set to smooth surface by the present embodiment, this smooth surface is mainly used in alleviating the frictional force when extruding mutually with gland 2 outer surface, reduces abrasion simultaneously. It should be noted that the external surface shape of short end 602 is not limited to smooth surface, the taper seat that handle 6 is axial is alleviated in all the other such as stepped gradual changes or edge, and even short end 602 is overall also all can adopt in cuboid.
Further, the present embodiment is also provided with draw ring 7 at the end position of long end 601, in order to operator are held by hand holding.
In order to extract pull 3 time, can the parking brake pulling force of release spring 4 smoothly, the present embodiment part of inner end (be mainly near) on pull bar 3 extends transversely through along it and is provided with alignment pin 8, and namely the outer surface of pull bar 3 is all stretched out at the two ends of alignment pin 8. And one end of spring 4 is fixedly installed on the inner surface of gland 2, and the both ends that namely other end stretches out pull bar 3 with alignment pin 8 are connected. So arrange, operator operation alleviate handle 6 pull bar 3 outward time, institute is strong is used that in the elastic force overcoming spring 4 for it, it is to avoid with the hole inwall generation resistance of the hole inwall of intermediate 1 or gland 2.
Being realized it addition, alleviate being rotationally connected between handle 6 and pull bar 3 in the present embodiment by split pin 9, so, the structure of split pin 9 departs from connection it can be avoided that alleviate handle 6 when pulling continually, improves connective stability. Certainly, alleviating the mode that is rotationally connected between handle 6 and pull bar 3 a lot, all the other are equally possible as by modes such as straight pin then two ends sealings.
The present invention also provides for a kind of tread braking unit, and including Parking Brake Cylinders and the hands relieving apparatus that is connected with Parking Brake Cylinders, wherein, this hands relieving apparatus is identical with foregoing, repeats no more herein.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention. The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (6)
1. the hands relieving apparatus of a tread braking unit, it is characterized in that, intermediate (1) including Parking Brake Cylinders, gland (2) and pull bar (3), described gland (2) is fixed on the sidewall of described intermediate (1), described pull bar (3) is movably arranged in described gland (2) and intermediate (1), and along the axial of described pull bar (3), its outer wall is provided with the spring (4) for producing parking brake power, the inner end of described pull bar (3) is connected to the ratchet pin (5) for being meshed with the ratchet on the ratchet cover plate, and the top of described ratchet pin (5) is smooth surface, also include alleviating handle (6), described alleviation handle (6) is arranged at the outer surface of described gland (2), and be rotationally connected with the outer end of described pull bar (3), and the outer surface of the outer surface of described alleviation handle (6) and described gland (2) is close to.
2. hands relieving apparatus according to claim 1, it is characterized in that, described alleviation handle (6) includes the long end (601) and the short end (602) that are separated by rotating fulcrum, and the outer surface of described short end (602) is be used for alleviating the smooth surface of frictional force between described gland (2) outer surface.
3. hands relieving apparatus according to claim 2, it is characterised in that also include being arranged at described long end (601) end position, being easy to the draw ring (7) of fingertip grasp.
4. hands relieving apparatus according to claim 1, it is characterized in that, described pull bar (3) extends transversely through along it and is provided with alignment pin (8), one end of described spring (4) is fixed on the inner surface of described gland (2), and the other end is connected with the both ends of described alignment pin (8).
5. hands relieving apparatus according to claim 4, it is characterised in that be rotationally connected by split pin (9) between described alleviation handle (6) and described pull bar (3).
6. a tread braking unit, including Parking Brake Cylinders and the hands relieving apparatus that is connected with described Parking Brake Cylinders, it is characterised in that described hands relieving apparatus is the hands relieving apparatus described in any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610004025.8A CN105620508A (en) | 2016-01-05 | 2016-01-05 | Tread brake unit and hand relieving device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610004025.8A CN105620508A (en) | 2016-01-05 | 2016-01-05 | Tread brake unit and hand relieving device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105620508A true CN105620508A (en) | 2016-06-01 |
Family
ID=56035952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610004025.8A Pending CN105620508A (en) | 2016-01-05 | 2016-01-05 | Tread brake unit and hand relieving device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105620508A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274969A (en) * | 2016-10-17 | 2017-01-04 | 常州中车铁马科技实业有限公司 | A kind of unit brake cylinder parking brake mechanism |
| CN109546448A (en) * | 2018-11-30 | 2019-03-29 | 中航光电科技股份有限公司 | A kind of vertical oblique pull separating mechanism |
| CN110155115A (en) * | 2019-05-30 | 2019-08-23 | 眉山中车制动科技股份有限公司 | Cylinder hand relieving mechanism is parked in braking and railway vehicle braking parks cylinder assembly |
| CN111216760A (en) * | 2018-11-27 | 2020-06-02 | 中车唐山机车车辆有限公司 | Parking brake cylinder relieving device and rail train |
| CN111762223A (en) * | 2020-09-01 | 2020-10-13 | 上海全路通铁道装备有限公司 | Automatic release pull rod mechanism |
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| US2752012A (en) * | 1952-02-13 | 1956-06-26 | Locomotive Finished Material C | Slack adjuster for air brakes |
| GB878002A (en) * | 1960-04-13 | 1961-09-20 | Westinghouse Brake & Signal | Improvements relating to automatic slack adjusting mechanisms |
| CN2227129Y (en) * | 1995-06-28 | 1996-05-15 | 太原重机煤气设备工程公司 | Bottom driving device of gas producer furnace |
| CN2440142Y (en) * | 2000-08-12 | 2001-07-25 | 阿巴斯·托乎提 | Anti-frozen hand-press valve |
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| CN2578196Y (en) * | 2002-10-22 | 2003-10-08 | 张继达 | Locomotive for orbital traffic, vehicle parking unit braker |
| CN101516697A (en) * | 2006-09-22 | 2009-08-26 | 纳博特斯克株式会社 | Brake cylinder device and unit brake using the same |
| CN102490760A (en) * | 2011-11-29 | 2012-06-13 | 南车株洲电力机车有限公司 | Hand relief auxiliary device used for parking brake device |
| CN202732795U (en) * | 2012-06-30 | 2013-02-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Energy-storage-type park-unit brake cylinder |
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2016
- 2016-01-05 CN CN201610004025.8A patent/CN105620508A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2752012A (en) * | 1952-02-13 | 1956-06-26 | Locomotive Finished Material C | Slack adjuster for air brakes |
| GB878002A (en) * | 1960-04-13 | 1961-09-20 | Westinghouse Brake & Signal | Improvements relating to automatic slack adjusting mechanisms |
| CN2227129Y (en) * | 1995-06-28 | 1996-05-15 | 太原重机煤气设备工程公司 | Bottom driving device of gas producer furnace |
| CN2440142Y (en) * | 2000-08-12 | 2001-07-25 | 阿巴斯·托乎提 | Anti-frozen hand-press valve |
| CN2454227Y (en) * | 2000-11-06 | 2001-10-17 | 上海振伟实业有限公司 | Support-wheel steering board with eccentric handle |
| CN2578196Y (en) * | 2002-10-22 | 2003-10-08 | 张继达 | Locomotive for orbital traffic, vehicle parking unit braker |
| CN101516697A (en) * | 2006-09-22 | 2009-08-26 | 纳博特斯克株式会社 | Brake cylinder device and unit brake using the same |
| CN102490760A (en) * | 2011-11-29 | 2012-06-13 | 南车株洲电力机车有限公司 | Hand relief auxiliary device used for parking brake device |
| CN202732795U (en) * | 2012-06-30 | 2013-02-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Energy-storage-type park-unit brake cylinder |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274969A (en) * | 2016-10-17 | 2017-01-04 | 常州中车铁马科技实业有限公司 | A kind of unit brake cylinder parking brake mechanism |
| CN111216760A (en) * | 2018-11-27 | 2020-06-02 | 中车唐山机车车辆有限公司 | Parking brake cylinder relieving device and rail train |
| CN109546448A (en) * | 2018-11-30 | 2019-03-29 | 中航光电科技股份有限公司 | A kind of vertical oblique pull separating mechanism |
| CN110155115A (en) * | 2019-05-30 | 2019-08-23 | 眉山中车制动科技股份有限公司 | Cylinder hand relieving mechanism is parked in braking and railway vehicle braking parks cylinder assembly |
| CN111762223A (en) * | 2020-09-01 | 2020-10-13 | 上海全路通铁道装备有限公司 | Automatic release pull rod mechanism |
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Application publication date: 20160601 |