CN203558084U - Hand braking machine for heavy-load truck - Google Patents
Hand braking machine for heavy-load truck Download PDFInfo
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- CN203558084U CN203558084U CN201320717839.8U CN201320717839U CN203558084U CN 203558084 U CN203558084 U CN 203558084U CN 201320717839 U CN201320717839 U CN 201320717839U CN 203558084 U CN203558084 U CN 203558084U
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Abstract
The utility model discloses a hand braking machine for a heavy load truck. The hand braking machine comprises a base assembly, a driving shaft assembly, a rolling chain wheel assembly, a hand wheel assembly, a hand shank assembly and a casing assembly. The driving shaft assembly comprises a driving shaft, a ratchet wheel, a pinion, a pinion shaft and a key wheel. The hand wheel assembly is connected with the driving shaft. The driving shaft is connected with the ratchet wheel, the key wheel and the pinion in sequence. The hand shank assembly comprises a hand shank, a transverse shifting frame and a longitudinal shifting frame, wherein the transverse shifting frame is directly connected with the hand shank, and the longitudinal shifting frame is in movable fit with the transverse shifting frame. The key wheel is shifted to be detached from the pinion when the hand shank is rotated anticlockwise. The hand braking machine for the heavy load truck has the advantages that by rotating the hand shank assembly and the hand wheel assembly, the driving shaft assembly of the hand braking machine is driven to complete a braking function, a fast relieving function and a gradual relieving function, the hand braking ability is effectively improved, and meanwhile the fast relieving performance of the hand braking machine is improved.
Description
Technical field
The utility model relates to rolling stock braking control field, specifically, relates to the hand brake that a kind of Heavy-Haul Railway lorry is used.
Background technology
Along with improving constantly that Chinese Railway wagon heavy duty requires, hand brake is as one of anti-slip important means of storing cycle, and its hand braking Capability Requirement is also more and more higher.In order to guarantee that hand braking chain, parking brake lever have under the prerequisite of safe enough surplus, improve hand braking rate, China newly makes truck vehicle and has adopted successively additional lever, movable pulley structure.But the employing of additional lever, movable pulley structure has caused the increase of hand braking chain hoisting depth, and then may cause reducing of the existing actual power output of overlapping, hand braking chain with chain on hand brake chain-rolling axis simultaneously.By the C by movable pulley NSW type hand brake device structure to dress
70car investigation finds, on its hand brake chain-rolling axis, the overlapping phenomenon of chain is commonplace, and the High power output amplitude of hand brake chain reduces, and after heavy-duty freight car entrucking, will be difficult to guarantee the requirement of the hand braking rate of minimum loaded vehicle.
By investigation, also find the bad more outstanding a kind of operating mode of NSW type hand brake rapid recovery: during vehicle parking, first apply wind stopping-down, then apply hand braking anti-slip operating mode.Test shows, when this kind of operating mode occurs, after wind brake action is eliminated, the pulling force of hand braking chain will significantly exceed the specified power output of hand brake chain, and then causes hand brake rapid recovery dysfunction.For the bad problem of NSW type hand brake rapid recovery, need to carry out structure of modification to hand brake, to meet the requirement of heavy-duty freight car to the chain amount of being involved in, power output and alleviation performance figure.
Utility model content
The purpose of this utility model is the shortcoming overlapping for existing chain-rolling axis chain, release of brake performance is bad, provides a kind of brake efficiency high and have a MSW type hand brake that the heavy-duty freight car of guide chain structure is used.
The technical solution of the utility model is: a kind of heavy-duty freight car hand brake, it is characterized in that: this device comprises the base composition being installed on car body, the imput shaft composition on base composition is fixed in one end, the volume sprocket wheel composition of driving chain, handwheel composition, handle composition, form with case shell, described imput shaft composition comprises imput shaft, ratchet, miniature gears, pinion shaft and key wheel, handwheel composition is connected with imput shaft, imput shaft successively with ratchet, key wheel is connected with miniature gears, key wheel and miniature gears are installed on pinion shaft, ratchet front-end and back-end all compress friction lining are installed, the horizontal pulling shelf that described handle composition comprises handle, be directly connected with handle and move the longitudinal pulling shelf coordinating with horizontal pulling shelf, stirs during left-hand revolution handle that key is taken turns and miniature gears disengaging.
Preferably, described volume chain wheel set becomes guide chain structure, comprise chain, with the big gear wheel of miniature gears engagement with is connected with big gear wheel and the volume sprocket wheel of chain drive-belt motion, one end of chain is formed and is connected with energy disperser by energy disperser u shaped connector, one end is fixed on vehicle parking brake lever.
Preferably, described volume sprocket wheel is provided with multiple dentalations that engage with chain.
Preferably, described handle is provided with conventional position and alleviates position two states, and handle orientations is conventional position state down, and under the state of conventional position, conter clockwise rotary handle certain angle is for alleviating position state.
Preferably, described ratchet and imput shaft junction are provided with annular ratchet sleeve.
Preferably, described pinion shaft is provided with miniature gears positioning and elastic cylindrical pin.
Preferably, described case shell composition is positioned at handwheel composition and volume sprocket wheel composition is anterior, and case shell composition is fixed on base composition by rivet.
The utility model beneficial effect is compared with prior art:
(1) MSW type hand brake for heavy-duty freight car of the present utility model, comprise base composition, imput shaft composition, volume sprocket wheel composition, handle composition, handwheel composition and case shell composition, by rotary handle, form with handwheel composition and drive the imput shaft of hand brake to form 3 kinds of functions, comprise braking function, rapid recovery function and mitigation capability gradually, effectively raise hand braking ability, improved the rapid recovery performance of hand brake simultaneously;
(2) volume chain wheel set becomes guide chain structure, the chain amount of being involved in is 1016mm to the maximum, and the volume sprocket wheel of chain drive-belt transmission is provided with multiple dentalations that engage with chain, in chain gear process, by chain, engage rotation with volume sprocket wheel dentalation, can chain not overlapping on volume sprocket wheel, guarantee that the power output of hand brake is stable.
Accompanying drawing explanation
Fig. 1 is the integral structure schematic diagram of the utility model hand brake;
Fig. 2 is the lateral plan of the utility model hand brake;
Fig. 3 is the schematic diagram of the utility model imput shaft composition;
Fig. 4 is the utility model imput shaft composition and handle composition structural representation;
Fig. 5 is volume sprocket wheel composition schematic diagram of the present utility model.
In figure, 1-base composition, 2-case shell composition, 3-imput shaft, 4-ratchet, 5-miniature gears, 6-pinion shaft, 7-key wheel, 8-friction lining, 9-chain, 10-big gear wheel, 11-volume sprocket wheel, 12-energy disperser composition, 13-handle, 14-laterally pulling shelf, 15-longitudinally pulling shelf, 16-conventional position, 17-alleviation position, 18-ratchet sleeve, 19-miniature gears positioning, 20-elastic cylindrical pin, 21-handwheel composition
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described:
Referring to Fig. 1 and Fig. 2, it is the structural representation of the utility model hand brake.As depicted in figs. 1 and 2; this hand brake comprises that base composition 1, one end of being installed on car body be fixed on the imput shaft composition on base composition 1, volume sprocket wheel composition 21, handle composition, handwheel composition and the case shell composition 2 of driving chain; wherein; case shell composition 2 is positioned at handwheel composition 21 and volume sprocket wheel composition is anterior; this hand brake inner structure is protected, and supported imput shaft composition and roll up sprocket wheel composition with base composition 1 is common.Case shell composition 2 is fixed on base composition 1 by rivet, and case shell composition 2 is provided with the mounting hole of mounting handle 13 and imput shaft 3.
Referring to Fig. 3 and Fig. 4, it is the structural representation of this hand brake imput shaft composition.As shown in Figure 3, imput shaft composition comprises imput shaft 3, ratchet 4, miniature gears 5, pinion shaft 6 and key wheel 7, handwheel composition 21 is connected with imput shaft 3, imput shaft 3 successively with ratchet 4, key wheel 7 is connected with miniature gears 5, imput shaft 3 is threaded with pinion shaft 6, key wheel 7 and miniature gears 5 are installed on pinion shaft 6, ratchet 4 front-end and back-end all compress friction lining 8 are installed, ratchet 4 and friction lining 8 are between imput shaft 3 and pinion shaft 6, ratchet 4 is provided with annular ratchet sleeve 18 with imput shaft 3 junctions, pinion shaft 6 is provided with miniature gears positioning 19 and elastic cylindrical pin 20.
Fig. 5 is the volume sprocket wheel composition schematic diagram of the utility model hand brake, volume chain wheel set becomes guide chain structure, the big gear wheel 10 that comprises chain 9, engage with miniature gears 5 and with big gear wheel 10 is connected and chain drive-belt 9 moves volume sprocket wheel 11, volume sprocket wheel 11 is provided with multiple dentalations that engage with chain 9, one end of chain 9 is connected with energy disperser composition 12 by energy disperser u shaped connector, and the other end is fixed on vehicle parking brake lever.Use this guide chain structure, can in transmission process, be tightened up at chain 9, and the dentalation on volume sprocket wheel 11, chain and volume sprocket wheel 11 engaged transmission guaranteed, prevent in chain 9 transmission process on volume sprocket wheel 11 overlappingly, guarantee that hand brake has stable power output.
The handle composition of this hand brake comprises handle 13, the horizontal pulling shelf 14 being directly connected with handle 13 and the longitudinal pulling shelf 15 being connected with horizontal pulling shelf 14, during left-hand revolution handle 13, drive successively horizontal pulling shelf 14 and longitudinally pulling shelf 15 move, and then stir key wheel 7 and depart from miniature gears 5.Handle 13 is provided with conventional position 16 and alleviates position 17 two states, and handle 13 directions are conventional position 16 states down, and under 16 states of conventional position, conter clockwise rotary handle 13 is for alleviating position 17 states.By rotary handle 13 and handwheel composition 21, drive the imput shaft 3 of hand brakes to form 3 kinds of functions, comprise braking function, rapid recovery function and mitigation capability gradually, specific implementation is:
(1) braking function
(2) rapid recovery function
Parking brake lever is in braking mode, handle 13 is located at conventional position 16 states, clickwise handle 13 is to alleviating position 17 states, and handle 13 rotarily drives horizontal pulling shelf 14 and rotates, and laterally pulling shelf 14 drives longitudinal pulling shelf 15 to rotate, longitudinal pulling shelf 15 is stirred key wheel 7 and is departed from miniature gears 5, key wheel 7 disconnects with the transmission of miniature gears 5, and now, the chain 9 under braking mode drives big gear wheel 10 to rotate, big gear wheel 10 drives miniature gears 5 to rotate, thereby realizes mitigation capability.
(3) mitigation capability gradually
Parking brake lever is in braking mode, left-hand revolution handwheel composition 21, drive imput shaft left-hand revolution, cause imput shaft 3 and the screw thread rotation of pinion shaft 6 to be unclamped, and then produce small gap between the friction lining 8 that drives ratchet 4 and its front-end and back-end to install, chain 9 under braking mode drives big gear wheel 10 to rotate, big gear wheel 10 drives miniature gears 5 to rotate, miniature gears 5 drives key wheel 7 and pinion shaft 6 to rotate successively, cause between the friction lining 8 of ratchet 4 and front-end and back-end and again compress and keep braking force, thereby realize mitigation capability gradually.
Adopt the technical scheme in embodiment to carry out braking performance test and the test of chain power output to this MSW type hand brake, the mitigation performance of MSW type hand brake is obviously better than NSW type hand brake, the power output dispersiveness of chain 9 obviously reduces, and table 1 is 156Nm this MSW type hand brake power output test result in imput shaft 3 time for applying moment of torsion:
3 MSW type hand brake power output test results of table 1
| ? | MSW-1 | MSW-2 | MSW-3 | Technical requirements |
| Minimum value/kN | 22.4 | 22.2 | 22.3 | ≥20 |
| Maxim/kN | 27.5 | 27.7 | 27.8 | ≤36 |
In sum, heavy-duty freight car hand brake of the present utility model, adopt volume chain wheel set to become guide chain structure and coordinate and realize braking function, rapid recovery function and mitigation capability gradually by each constituent elements of hand brake, not only prevent that chain is wound around on volume sprocket wheel, the power output of guaranteeing hand brake is stable, effectively raise chain power output, improved rapid recovery performance simultaneously, improved the reliability of vehicle parking braking.
Claims (7)
1. a heavy-duty freight car hand brake, it is characterized in that: this device comprises that the base being installed on car body forms, one end is fixed on base composition imput shaft composition, the volume sprocket wheel composition of driving chain, handwheel composition, handle form and case shell composition, described imput shaft composition comprises imput shaft, ratchet, miniature gears, pinion shaft and key wheel, handwheel composition is connected with imput shaft, imput shaft is connected with ratchet, key wheel and miniature gears successively, key wheel and miniature gears are installed on pinion shaft, and ratchet front-end and back-end all compress friction lining is installed; The horizontal pulling shelf that described handle composition comprises handle, be directly connected with handle and move the longitudinal pulling shelf coordinating with horizontal pulling shelf, stirs during left-hand revolution handle that key is taken turns and miniature gears disengaging.
2. heavy-duty freight car hand brake according to claim 1, it is characterized in that: described volume chain wheel set becomes guide chain structure, comprise chain, with the big gear wheel of miniature gears engagement with is connected with big gear wheel and volume sprocket wheel that chain drive-belt moves, one end of chain is connected with energy disperser composition by energy disperser u shaped connector, and one end is fixed on vehicle parking brake lever.
3. heavy-duty freight car hand brake according to claim 2, is characterized in that: described volume sprocket wheel is provided with multiple dentalations that engage with chain.
4. heavy-duty freight car hand brake according to claim 1, it is characterized in that: described handle is provided with conventional position and alleviates position two states, handle orientations is conventional position state down, and under the state of conventional position, conter clockwise rotary handle certain angle is for alleviating position state.
5. heavy-duty freight car hand brake according to claim 1, is characterized in that: described ratchet and imput shaft junction are provided with annular ratchet sleeve.
6. heavy-duty freight car hand brake according to claim 1, is characterized in that: described pinion shaft is provided with miniature gears positioning and elastic cylindrical pin.
7. heavy-duty freight car hand brake according to claim 1, is characterized in that: described case shell composition is positioned at handwheel composition and volume sprocket wheel composition is anterior, and case shell composition is fixed on base composition by rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717839.8U CN203558084U (en) | 2013-11-14 | 2013-11-14 | Hand braking machine for heavy-load truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717839.8U CN203558084U (en) | 2013-11-14 | 2013-11-14 | Hand braking machine for heavy-load truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203558084U true CN203558084U (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320717839.8U Withdrawn - After Issue CN203558084U (en) | 2013-11-14 | 2013-11-14 | Hand braking machine for heavy-load truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203558084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569153A (en) * | 2013-11-14 | 2014-02-12 | 青岛四方车辆研究所有限公司 | Hand brake for heavy-duty freight car |
-
2013
- 2013-11-14 CN CN201320717839.8U patent/CN203558084U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103569153A (en) * | 2013-11-14 | 2014-02-12 | 青岛四方车辆研究所有限公司 | Hand brake for heavy-duty freight car |
| CN103569153B (en) * | 2013-11-14 | 2016-08-17 | 中车青岛四方车辆研究所有限公司 | Hand brake for heavy-duty freight car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 266000 Shandong province Qingdao City, Ruichang Road No. 231 Patentee after: CRRC QINGDAO SIFANG VEHICLE RESEARCH INSTITUTE CO., LTD. Address before: 266000 Shandong province Qingdao City, Ruichang Road No. 231 Patentee before: Qingdao Sifang Rolling Stock Research Institute Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140423 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |