CN107458416B - Hand braking gripping mechanism - Google Patents
Hand braking gripping mechanism Download PDFInfo
- Publication number
- CN107458416B CN107458416B CN201710679989.7A CN201710679989A CN107458416B CN 107458416 B CN107458416 B CN 107458416B CN 201710679989 A CN201710679989 A CN 201710679989A CN 107458416 B CN107458416 B CN 107458416B
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- China
- Prior art keywords
- hand braking
- holder arms
- connection frame
- gripping mechanism
- brake
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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
- B61H13/00—Actuating rail vehicle brakes
- B61H13/20—Transmitting mechanisms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention proposes a kind of hand braking gripping mechanism, it is installed on car structure, including unit brake cylinder, and it is installed on the hand braking holder arms and backstop holder arms of the unit brake cylinder two sides, the connection frame that can mount on the car structure is connected between the hand braking holder arms and the backstop holder arms, hanging axis is installed on the connection frame, the reset unit that can increase the laterally free degree of the connection frame is provided on the connection frame.The hand braking gripping mechanism can not only solve the problems, such as eccentric wear caused by laying particular stress on due to unit brake cylinder, but also brake disc bilateral stress when can realize hand braking, avoid unit brake cylinder torque suspension and act on.
Description
Technical field
The invention belongs to rail vehicle field more particularly to a kind of hand braking gripping mechanisms of rail vehicle.
Background technique
To prevent car slipping after parking, passenger train is generally provided with hand brake device, including hand brake, chain, company
Bar and hand braking gripping mechanism, brake lining, brake disc etc..Hand braking gripping mechanism passes through hand brake, chain, connecting rod etc. for manpower
It is converted into brake lining pressure, brake disc is compressed, so that vehicle be made to remain stationary state.
As shown in Figure 1, being the hand braking gripping mechanism of existing passenger train configuration, including unit brake cylinder 1, hand braking folder
Tong arm 2, connection frame 4, left rotary shaft 5, right spindle 6, hanging axis 7, right brake pad support 8, left brake pad support 9, boom 10, hangs spiral shell at holder arms 21
Bolt 11 and backstop bolt 12.Wherein, hand braking gripping mechanism is connect for 3 points totally by hanging axis 7 and hanger bolt 11 with framework, backstop
Bolt 12 is fixed architecturally, and hand braking holder arms 2 pass through the external hand brake that can provide power of chain 13.Work as hand brake
When applying hand braking, hand braking holder arms 2 under the action of 13 pulling force of chain (direction shown in chain arrow as shown in figure 1) around right-hand rotation
Axis 5 rotates counterclockwise, and drives right brake pad support 9 (containing brake lining) to be affixed to brake disc, while unit brake cylinder 1 being driven to move right, directly
It is contacted to unit brake cylinder 1 with backstop bolt 12, during unit brake cylinder 1 moves right, holder arms 21 are inverse around left rotary shaft 6
Hour hands rotation, causes left brake pad support 8 far from brake disc.Under 13 pulling force of chain, hand braking holder arms 2 are continued to rotate, until right
Brake pad on brake plate support 9 compresses brake disc；And unit brake cylinder 1 can not be moved due to the blocking of backstop bolt at this time,
Under the action of hand braking holder arms 2, can only be stretched out by inboard leadscrews and adjustment mechanism, and right brake pad support 8 always with brake disc
There are gaps.
It is above-mentioned that hand braking gripping mechanism is during hand braking in the prior art, since connection frame is unable to transverse shifting, when
When applying hand braking, brake disc only has unilateral stress, can not provide enough brake force, guarantees that vehicle does not slip on compared with steep gradient
Vehicle；And the pulling force of backstop bolt and chain is in same level, it, can be to unit when hand brake applies pulling force by chain
Checking cylinder 1 generates certain torque, influences its service life.Further, since unit brake cylinder center of gravity is close to side, in addition brake disc list
Side stress, leading to above-mentioned hand braking gripping mechanism, there are more serious brake lining friction phenomenons, and then lead to brake disc eccentric wear, influence
The service life of brake disc and brake lining.
In addition, disclosing a kind of mechanically hand braking folder of rail vehicle truck in Chinese invention patent CN 103101555
Clamp device, the invention, including outer lever, inside lever, unit brake cylinder, lever are hung, brake plate support, brake lining, brake plate support are hung, also
Including the link mechanism being made of the first, second mutually hinged connecting rod of inner end, the outer end of the first connecting rod opens up slotted hole,
It being inserted into the slotted hole with the fixed round pin in inside lever end, the round pin can slide in the slotted hole, and described second
Hinged with outer lever end in the middle part of connecting rod, circular hole is employed with hand-made in second connecting rod outer end；The outer lever, inside lever
Outer end extension elongation it is equal, the first connecting rod has the arc section that extends out and a flat segments, the outer end of the arc section and the
Two connecting rods are hinged, and the slotted hole is longitudinally opened up along the flat segments, and the angle between the flat segments and inside lever exists
Between 80 ° -90 °.
Above-mentioned existing patent by installing a set of link mechanism between the holder arms of two sides, and then coordinates two side bitting clamps
Arm rotates simultaneously, but the device, when normal air is braked, link mechanism also moves therewith, and since revolute pair is more, holds
Easy-to-rust reduces mechanical transfer efficiency, affects the braking and alleviation of normal air braking, and furthermore link mechanism occupies larger sky
Between, applicability is poor.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of hand braking gripping mechanism, which both may be used
Brake disc bilateral stress when solving the problems, such as eccentric wear caused by laying particular stress on due to unit brake cylinder, and can realize hand braking, avoids list
First checking cylinder torque suspension effect.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of hand braking gripping mechanism, is installed on car structure, including unit brake cylinder, and is installed on the unit
The hand braking holder arms and backstop holder arms of checking cylinder two sides, connect between the hand braking holder arms and the backstop holder arms
There is the connection frame that can mount on the car structure, hanging axis is installed, being provided on the connection frame can on the connection frame
Increase the reset unit of the laterally free degree of the connection frame.
It is advanced optimized as of the invention, the reset unit includes the reset spring being socketed on outside the hanging axis
, reset spring is installed on the return spring holder, the reset unit is set to the connection frame and the car structure
Between.
It is advanced optimized as of the invention, the unit brake cylinder is center of gravity type unit brake cylinder placed in the middle.
It is advanced optimized as of the invention, the first peace of the mountable backstop holder arms is provided on the connection frame
Hole is filled, the connection frame and the backstop holder arms correspond to first mounting hole and are equipped with left rotary shaft；On the connection frame
It is provided with the second mounting hole of the mountable hand braking holder arms, the connection frame and the hand braking holder arms correspond to institute
It states the second mounting hole and right spindle is installed.
It is advanced optimized as of the invention, further comprises two brake plate supports, respectively left brake pad support and right brake pad support,
Wherein, the left brake pad support is installed on the backstop holder arms, and the right brake pad support is installed on the hand braking holder arms.
It is advanced optimized as of the invention, between the left brake pad support and the backstop holder arms and the right lock
Brake lining consignment is provided between piece support and the hand braking holder arms.
It is advanced optimized as of the invention, the boom being mountable on car structure, institute is installed on the brake plate support
It states and hanger bolt is installed on boom, to be installed on car structure.
It is advanced optimized as of the invention, chain is installed on the hand braking holder arms.
Compared with prior art, the advantages and positive effects of the present invention are:
1, hand braking gripping mechanism of the invention solves caused by laying particular stress on because of unit brake cylinder by the way that reset unit is arranged
Brake lining eccentric wear problem；Simultaneously in hand braking effect, brake disc bilateral stress improves hand-made kinetic force, ensure that vehicle
The not car slipping on compared with steep gradient.
2, hand braking gripping mechanism of the invention, hand braking (or alleviation) function and normal air braking (or alleviation) function
Can be mutually indepedent, it is independent of each other.
3, structure of the invention is compact, occupies little space, advantageous to have saved space.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of hand braking gripping mechanism in the prior art；
Fig. 2 is the structural schematic diagram of the hand braking gripping mechanism of the present invention；
Fig. 3 is the cross-sectional view at middle hanging axis；
Fig. 4 is the structural schematic diagram that the present invention stops retaining clip tong arm；
Fig. 5 is the structural schematic diagram of connection frame in the present invention；
Fig. 6 is the force analysis figure of the hand braking gripping mechanism of the present invention.
In above each figure: 1, unit brake cylinder；2, hand braking holder arms；21, holder arms；3, backstop holder arms；31, first
Mounting hole；32, the second mounting hole；33, third mounting hole；34, stop tab；4, connection frame；41, hanging axis mounting hole；42 the 4th peaces
Fill hole；43, the 5th mounting hole；5, right spindle；6, left rotary shaft；7, hanging axis；71, reset spring；72, spring base；8, left brake pad support；
9, right brake pad support；10, boom；11, hanger bolt；12, backstop bolt；13, chain；14, brake lining is consigned；15, car structure.
Specific embodiment
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one
In the case where step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiments
In.
In the description of the present invention, it should be noted that the instruction such as term "inner", "outside", "upper", "lower", "front", "rear"
Orientation or positional relationship be positional relationship based on the figure, be merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as referring to
Show or imply relative importance.
As shown in Figures 2 and 3, the present invention provides a kind of hand braking gripping mechanism, which is installed on
On car structure 15, it is provided with backstop bolt 12 on car structure 15, for limiting the movement of hand braking gripping mechanism, can prevent
Car slipping when vehicle parking, the hand braking gripping mechanism include unit brake cylinder 1, and are installed on 1 liang of the unit brake cylinder
The hand braking holder arms 2 and backstop holder arms 3 of side, among the above, the unit brake cylinder 1 are center of gravity type unit brake cylinder placed in the middle,
It can avoid brake lining eccentric wear problem caused by laying particular stress on because of unit brake cylinder in this way.
Continue to can mount to institute as shown in figure 3, being connected between the hand braking holder arms 2 and the backstop holder arms 3
The connection frame 4 on car structure 15 is stated, hanging axis 7 is installed, institute can be increased by being provided on the connection frame 4 on the connection frame 4
The reset unit for stating the laterally free degree of connection frame 4 further makes the power bilateral stress acted in brake disc.The reset is single
Member includes the return spring holder 72 being socketed on outside the hanging axis 7, is equipped with reset spring 71, institute on the return spring holder 72
Reset unit is stated to be set between the connection frame 4 and the car structure 15.
The setting of above-mentioned reset unit is solved the problems, such as eccentric wear caused by being laid particular stress on due to unit brake cylinder, and realized hand-made
Brake disc bilateral stress when dynamic avoids the effect of unit brake cylinder torque suspension.
In addition, being equipped with chain 13 on the hand braking holder arms 2.
Among the above, it is further analyzed in conjunction with Fig. 6:
Since return spring force is relative to hand braking pulling force very little, ignore in computation model to it.Then two sides brake lining
Normal pressure is respectively as follows:
Wherein, FLockIndicate the normal pressure of brake lining, L indicates brachium, then as L3=L4, FLock 1=FLock 2, i.e., hand braking effect
When, brake disc two sides stress is equal, compares existing vehicle product, and hand-made kinetic force improves 1 times.
In addition, hand braking gripping mechanism of the invention further comprises two brake plate supports, respectively left brake pad support 8 and You Zha
Piece support 9, wherein the left brake pad support 8 is installed on the backstop holder arms 2, and the right brake pad support 9 is installed on the hand braking folder
On tong arm 3.Between the left brake pad support 8 and the backstop holder arms 3 and the right brake pad support 9 and the hand braking clamp
Brake lining consignment 14 is provided between arm 2.
It referring to fig. 4, is the structural representation for stopping retaining clip tong arm 3 to the present invention.Have the on backstop holder arms 3 of the invention
One mounting hole 31, the second mounting hole 32 and third mounting hole 33, wherein the backstop holder arms 3 for corresponding to the first mounting hole 31 pass through
Pin shaft installs left brake pad support 8, and the backstop holder arms 3 corresponding to the second mounting hole 32 install connection frame 4 by pin shaft, corresponding to the
The backstop holder arms 3 of three mounting holes 33 pass through bolt installation unit checking cylinder 1.In addition, being arranged on backstop holder arms 3 of the invention
There is stop tab 34, stop tab 34 protrudes from the backstop holder arms 3 and is arranged, and corresponds to the backstop bolt on car structure 15.
Stop tab 34 is contacted in hand braking effect with backstop bolt 12, traversing to limit hand braking gripping mechanism.
Referring to Fig. 5, the structure of connection frame is described in further detail.The hanging axis of mountable hanging axis is provided on the connection frame 4
4th mounting hole 42 of mounting hole 41 and the mountable backstop holder arms 3, the connection frame 4 and the backstop holder arms 2
Left rotary shaft 6 is installed corresponding to the 4th mounting hole 42；It is further provided on the connection frame 4 mountable described hand braking
5th mounting hole 43 of holder arms 2, the connection frame 4 are pacified with the hand braking holder arms 2 corresponding to the 5th mounting hole 43
Equipped with right spindle 5.
In addition, hand braking gripping mechanism of the invention is installed on car structure, it is general by the way of 3 points of liftings,
Therefore the boom 10 being mountable on car structure is installed on the brake plate support 14, hanger bolt is installed on the boom 10
11, to be installed on car structure.
It further carefully states, among the above, 1 both ends of unit brake cylinder are respectively equipped with pin hole, pass through bolt and hand braking holder arms 2
It is hinged with backstop holder arms 3, hand braking holder arms 2 and backstop holder arms 3 respectively by right spindle 5 and left rotary shaft 6 with
Connection frame 4 is hinged, and left brake pad support 8 and right brake pad support 9 pass through brake lining consignment 14 and hand braking holder arms 2, backstop respectively
Holder arms 3 are hinged, and hand braking gripping mechanism is total to three-point mount on car structure by hanging axis 7 and hanger bolt 11,
Hand braking holder arms 2 are connect by chain 15 (or connecting rod) with hand brake.
Based on above-mentioned technical solution, the course of work of the invention specifically:
Working principle
Process one: when applying hand braking by hand brake, under the action of chain pull, hand braking holder arms 2 to
It moves right, while unit brake cylinder 1, connection frame 4 (overcoming 71 tension of reset spring) and 3 entirety of backstop holder arms being driven to move right
Dynamic, backstop holder arms 3 drive left brake pad support 8 close to brake disc, until left brake pad support 8 is adjacent to brake disc；
Process two: after left brake pad support 8 is adjacent to brake disc, under the action of hand braking chain pull, backstop holder arms 3 around
Brake plate support 8 connect 14 rotation of brake lining consignment with brake clip tong arm 3, until backstop holder arms 3 are contacted with backstop bolt 12, at this point,
Unit brake cylinder 1 and connection frame 4 stop moving right；
Process three: hand braking chain pull continue effect under, hand braking holder arms 2 are rotated around right spindle 5, are driven single
Lead screw and adjustment mechanism inside first checking cylinder 1 continue move right (overall movement of unit brake cylinder 1 is restricted), while right lock
Piece support 9 is close to brake disc, until being adjacent to.With continuing to for hand braking chain pull, brake disc two sides generate brake lining pressure
Power；
After hand braking unloading, under the action of internal reset spring, lead screw and adjustment mechanism reset unit brake cylinder 1,
Simultaneously under the action of reset spring 71, connection frame 4 is moved to the left with hand brake gripping mechanism, restores to hand braking preceding to delay
Solution state.
Hand braking gripping mechanism through the invention, improves hand-made kinetic force, guarantees happy vehicle on compared with steep gradient not
Car slipping；(or alleviation) function hand braking simultaneously and normal air braking (or alleviation) function are mutually indepedent, are independent of each other.In addition originally
That invents is compact-sized, has saved space.
Claims (7)
1. a kind of hand braking gripping mechanism, is installed on car structure, including unit brake cylinder, and is installed on the unit style
The hand braking holder arms and backstop holder arms of dynamic cylinder two sides, it is characterised in that: the hand braking holder arms and the backstop clamp
It is connected with the connection frame that can mount on the car structure between arm, hanging axis, the connection frame are installed on the connection frame
On be provided with the reset unit that can increase the laterally free degree of the connection frame；The reset unit includes being socketed on outside the hanging axis
The return spring holder in portion, is equipped with reset spring on the return spring holder, the reset unit be set to the connection frame with
Between the car structure.
2. hand braking gripping mechanism according to claim 1, it is characterised in that: the unit brake cylinder is center of gravity type placed in the middle
Unit brake cylinder.
3. hand braking gripping mechanism according to claim 2, it is characterised in that: be provided with mountable institute on the connection frame
The first mounting hole of backstop holder arms is stated, the connection frame corresponds to first mounting hole with the backstop holder arms and is equipped with
Left rotary shaft；Be provided with the second mounting hole of the mountable hand braking holder arms on the connection frame, the connection frame with it is described
Hand braking holder arms correspond to second mounting hole and are equipped with right spindle.
4. hand braking gripping mechanism according to claim 3, it is characterised in that: further comprise two brake plate supports, respectively
For left brake pad support and right brake pad support, wherein the left brake pad support is installed on the backstop holder arms, and the right brake pad support is installed on
The hand braking holder arms.
5. hand braking gripping mechanism according to claim 4, it is characterised in that: the left brake pad support and the backstop clamp
Brake lining consignment is provided between arm and between the right brake pad support and the hand braking holder arms.
6. hand braking gripping mechanism according to claim 4 or 5, it is characterised in that: being equipped on the brake plate support can pacify
Loaded on the boom on car structure, hanger bolt is installed on the boom, to be installed on car structure.
7. hand braking gripping mechanism according to claim 1, it is characterised in that: be equipped with chain on the hand braking holder arms
Item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679989.7A CN107458416B (en) | 2017-08-10 | 2017-08-10 | Hand braking gripping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679989.7A CN107458416B (en) | 2017-08-10 | 2017-08-10 | Hand braking gripping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107458416A CN107458416A (en) | 2017-12-12 |
| CN107458416B true CN107458416B (en) | 2019-01-25 |
Family
ID=60548687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679989.7A Active CN107458416B (en) | 2017-08-10 | 2017-08-10 | Hand braking gripping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107458416B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111976783B (en) * | 2020-09-01 | 2023-02-07 | 中车制动***有限公司 | Lever mechanism and brake clamp unit of railway vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2400453A2 (en) * | 1974-12-17 | 1979-03-16 | Sab | Pneumatically operated disc brake for rail vehicle - has calipers operated by spring cylinder via pivoted linkages and released by air cylinder |
| FR2631600B1 (en) * | 1988-05-18 | 1990-07-13 | Alsthom Creusot Rail | DEVICE FOR BRAKING AN AXLE ELASTICALLY CONNECTED TO A CHASSIS |
| DE3940221A1 (en) * | 1989-12-05 | 1991-06-06 | Knorr Bremse Ag | TENSION RODS FOR DISC BRAKES |
| RU2390449C2 (en) * | 2008-01-09 | 2010-05-27 | Открытое акционерное общество "Транспневматика" | Railway rallong stock vehicle disk brake |
| CN102060032B (en) * | 2010-12-08 | 2012-12-19 | 青岛四方车辆研究所有限公司 | Brake for railway vehicle unit |
| CN103101555B (en) * | 2013-03-04 | 2015-04-22 | 南车南京浦镇车辆有限公司 | Mechanical type hand braking gripping device of railway vehicle steering frame |
| CN104455113B (en) * | 2014-10-20 | 2016-09-07 | 青岛思锐科技有限公司 | Rail locomotive car braking nipper units |
-
2017
- 2017-08-10 CN CN201710679989.7A patent/CN107458416B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107458416A (en) | 2017-12-12 |
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