CN204020905U - Rolling stock unit brake - Google Patents
Rolling stock unit brake Download PDFInfo
- Publication number
- CN204020905U CN204020905U CN201420491840.8U CN201420491840U CN204020905U CN 204020905 U CN204020905 U CN 204020905U CN 201420491840 U CN201420491840 U CN 201420491840U CN 204020905 U CN204020905 U CN 204020905U
- Authority
- CN
- China
- Prior art keywords
- clearance adjuster
- brake
- bearing
- supporting seat
- rolling stock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 25
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 230000003137 locomotive effect Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses in brake cylinder and be provided with and brake piston, location bearing, supporting seat is provided with backup bearing, braking piston both sides are provided with voussoir, voussoir inserts between the rolling surface of location bearing and the rolling surface of backup bearing, the front end of supporting seat is provided with the clearance adjuster vertical with backup bearing, the front end of clearance adjuster is connected with brake head, it is characterized in that: supporting seat is provided with U-lag, the outer circumference surface diameter direction of clearance adjuster is provided with boss, the U-lag of the supporting seat formation revolute pair that matches with the boss of clearance adjuster.Increase the degree of freedom of clearance adjuster left and right directions, alleviated clearance adjuster and connect firmly the uneven problem of shaft strength, in the service life of effectively having improved bearing, increased the stability of unit brake.
Description
Technical field
The utility model relates to a kind of unit brake, relates in particular to a kind of unit brake for rolling stock.
Background technology
Unit brake is the foundation brake rigging of rail transit rolling stock wheel tread braking, it is the final device for carrying out said of braking function, for the safe in operation of rolling stock provides safeguard, be applicable to the brake system of the various kinds of vehicles vehicles such as rail vehicles, Urban Light Rail Vehicle, railcar.
Existing unit brake, taking pressurized air as propulsion source, has mechanical force amplifier and automatic backlash adjusting mechanism.Major part comprises a brake head mechanism, a brake cylinder, the transmission mechanism of a set of cuniform increase power and power, and one built-in can auto-compensation brake shoe and the clearance adjuster of wheel tread abrasion loss.The axletree of locomotive is arranged on bogie truck, and has certain gap between axletree and bogie truck, and especially the tween drive shaft of three axle truck locomotive and the gap of bogie truck are just larger.In the time that axletree runs into transverse force, (for example, while crossing bend), will traverse.When motorcycle axle traverses, transverse force will be applied on brake head, because brake head and clearance adjuster front end connect firmly, transverse force has been directly delivered on clearance adjuster by brake head, gap modulator has just had the trend of side on oscillation, and sense of motion has departed from the output axis of braking force in trickle degree.Like this guiding mechanism in clearance adjuster and brake cylinder in front and back end uniform contact simultaneously just, local contact stress becomes large, the relative motion resistance of the two strengthens, the clearance adjuster relative and smooth and easy slip of guiding mechanism again, brake head also just can not successfully reset to realize the alleviation of braking, has increased the risk of brake head mechanism self-locking clamping stagnation; The side on oscillation trend having when clearance adjuster is subject to transverse force in addition can cause two shaft strengths that connect firmly with clearance adjuster inhomogeneous, causes integrated carrying ability and bearing to decline service life, causes locomotive, car brakeing to be alleviated and loses efficacy.
Due to the constraint of clearance adjuster guiding mechanism in the rear and front end of braking force outbound course is all subject to brake cylinder, thus clearance adjuster relatively brake cylinder seesaw along the output axis of braking force.
Utility model content
The technical matters that the utility model solves is the constraint that solution clearance adjuster is subject to guiding mechanism in brake cylinder, brake cylinder seesaws along the output axis of braking force relatively, and in the time that brake head is subject to transverse force, possible generating mechanism clamping stagnation, the problem that causes rolling stock release of brake to be lost efficacy.Solve two shaft strength problem of non-uniform that connect firmly with clearance adjuster simultaneously.
The structure of this rolling stock unit brake is in brake cylinder, to be provided with braking piston, location bearing, supporting seat is provided with backup bearing, braking piston both sides are provided with voussoir, voussoir inserts between the rolling surface of location bearing and the rolling surface of backup bearing, the front end of supporting seat is provided with the clearance adjuster vertical with backup bearing, the front end of clearance adjuster is connected with brake head, supporting seat is provided with U-lag, the outer circumference surface diameter direction of clearance adjuster is provided with boss, the U-lag of the supporting seat formation revolute pair that matches with the boss of clearance adjuster.
The axis of location bearing is parallel with the axis of backup bearing.Clearance adjuster can be around the turning cylinder left-right rotation of revolute pair.
Connect firmly by newly-increased supporting seat and backup bearing, change the connection mode of clearance adjuster and two bearings, increase the degree of freedom of clearance adjuster left and right directions, alleviate clearance adjuster and connect firmly the uneven problem of shaft strength, effectively improve the service life of bearing, increased the stability of unit brake.
The beneficial effects of the utility model are in the time that clearance adjuster is subject to transverse force, and clearance adjuster can meet the swing degree of freedom in certain limit, and this layout has solved the clearance adjuster being caused by transverse force and connected firmly the uneven problem of shaft strength; Effectively improve the service life of bearing, increased the stability of unit brake.
Brief description of the drawings
Fig. 1 is the structural representation of rolling stock unit brake basical traditional model.
Fig. 2 is the structural representation that rolling stock unit brake clearance adjuster coordinates with supporting seat.
Fig. 3 is the structural representation of the clearance adjuster of rolling stock unit brake.
Fig. 4 is the structural representation of the supporting seat of rolling stock unit brake.
Reference numeral is as follows: 1-brake cylinder, 2-brakes piston, 3-backup bearing, 4-location bearing, 5-clearance adjuster, 6-supporting seat, 7-voussoir.
Detailed description of the invention
The structure of rolling stock unit brake is in brake cylinder 1, to be provided with braking piston 2, location bearing 4, supporting seat 6 is provided with backup bearing 3, braking piston 2 both sides are provided with voussoir 7, voussoir 7 inserts between the rolling surface of location bearing 4 and the rolling surface of backup bearing 3, the front end of supporting seat 6 is provided with the clearance adjuster vertical with backup bearing 35, the front end of clearance adjuster 5 is connected with brake head, supporting seat 6 is provided with U-lag, the outer circumference surface diameter direction of clearance adjuster 5 is provided with boss, the U-lag of the supporting seat 6 formation revolute pair that matches with the boss of clearance adjuster 5.The axis of location bearing 4 is parallel with the axis of backup bearing 3.Clearance adjuster 5 can be around the turning cylinder left-right rotation of revolute pair.
While braking, pressurized air enters the sealing load epitrochoidal chamber forming between brake cylinder 1 and braking piston 2, under the promotion of air pressure, braking piston 2 moves downward, the hypotenuse of voussoir is attached on the rolling surface of backup bearing 3, the straight flange of voussoir is attached on location bearing 4, and the hypotenuse of voussoir is pushing away backup bearing 3 makes supporting seat 6 move toward braking direction.Under the promotion of supporting seat 6, clearance adjuster 5 promotes brake head and stretches out, and the brake shoe on brake head and wheel tread friction occur and realize braking.In the time that motorcycle axle traverses, clearance adjuster 5 can swing within the specific limits with respect to supporting seat 6, while preventing that clearance adjuster 5 is subject to transverse force, side on oscillation trend causes two shaft strengths inhomogeneous, thereby cause integrated carrying ability and bearing to decline service life, rolling stock release of brake was lost efficacy.
Claims (3)
1. rolling stock unit brake, in brake cylinder (1), be provided with braking piston (2), location bearing (4), supporting seat (6) is provided with backup bearing (3), braking piston (2) both sides are provided with voussoir (7), voussoir (7) inserts between the rolling surface and the rolling surface of backup bearing (3) of location bearing (4), the front end of supporting seat (6) is provided with the clearance adjuster (5) vertical with backup bearing (3), the front end of clearance adjuster (5) is connected with brake head, it is characterized in that: supporting seat (6) is provided with U-lag, the outer circumference surface diameter direction of clearance adjuster (5) is provided with boss, the U-lag of supporting seat (6) the formation revolute pair that matches with the boss of clearance adjuster (5).
2. rolling stock unit brake according to claim 1, is characterized in that: the axis of location bearing (4) is parallel with the axis of backup bearing (3).
3. rolling stock unit brake according to claim 1, is characterized in that: clearance adjuster (5) can be around the turning cylinder left-right rotation of revolute pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491840.8U CN204020905U (en) | 2014-08-29 | 2014-08-29 | Rolling stock unit brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491840.8U CN204020905U (en) | 2014-08-29 | 2014-08-29 | Rolling stock unit brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204020905U true CN204020905U (en) | 2014-12-17 |
Family
ID=52060804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420491840.8U Expired - Lifetime CN204020905U (en) | 2014-08-29 | 2014-08-29 | Rolling stock unit brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204020905U (en) |
-
2014
- 2014-08-29 CN CN201420491840.8U patent/CN204020905U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141217 |