CN103342129A - Brake head device for locomotive brake - Google Patents
Brake head device for locomotive brake Download PDFInfo
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- CN103342129A CN103342129A CN2013103211550A CN201310321155A CN103342129A CN 103342129 A CN103342129 A CN 103342129A CN 2013103211550 A CN2013103211550 A CN 2013103211550A CN 201310321155 A CN201310321155 A CN 201310321155A CN 103342129 A CN103342129 A CN 103342129A
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- brake
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- brake head
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- wedge
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Abstract
The invention discloses a brake head device for a locomotive brake, and the brake head device is used for solving the problem that potential safety hazard exists due to incomplete attachment between a brake shoe and a tread because the existing brake head cannot regulate the angle automatically. The brake head device for the locomotive brake comprises a screw rod head assembly installed in a box body and a brake head connected with the screw rod head assembly; one end, which is connected with the brake head, of the screw rod head assembly is provided with a wedge block extending downwards; a locking mechanism for locking the brake head on the wedge block is arranged at the lower part of the brake head. The break head device disclosed by the invention can ensure that the inclination angle of the break head can be automatically regulated with changes of the installation position of a unit brake and ensure locking of the inclination angle, thereby ensuring that the brake shoe is completely attached to the tread during braking.
Description
Technical field
The present invention relates to a kind of rolling stock brake equipment field, be specially a kind of brake head device for water brake.
Background technology
Brake head is the important component part of tread units drg, and its function is to provide failure-free to fix and locate to brake shoe, and transmits braking force to the brake shoe actv..Because the variation of vehicle weight, the setting height(from bottom) of drg on framework can change, and will cause the angle of tread brake unit brake shoe can't adapt to the variation of tread profile fully; The abrasion of tread and brake shoe are in operation owing to also can cause brake shoe not contact with tread fully.Fit fully if guarantee brake shoe and tread, must be by regulating the angle of brake head manually, not easy to operate, waste time and energy.If the angle of untimely adjustment brake head will cause brake shoe partial wear, thereby reduces the area of contact of brake shoe and wheel tread, make the braking potential of brake shoe descend.
Summary of the invention
Can not adjust angle automatically in order to overcome existing brake head, may cause brake shoe and tread not exclusively to be fitted and have the deficiency of potential safety hazard, the present invention aims to provide a kind of brake head device for water brake, the inclination angle that this brake head device can guarantee brake head changes the locking that can adjust and keep the inclination angle automatically with the unit brake installation site, thereby fits fully when realizing brake shoe and tread brake.
To achieve these goals, the technical solution adopted in the present invention is: a kind of brake head device for water brake comprises the screw mandrel head assembling that is contained in the casing and the brake head that links to each other with this screw mandrel head assembling; Its constructional feature is, the end that described screw mandrel head assembling links to each other with brake head has the wedge of downward extension, and described brake head bottom has brake head is locked in lockout mechanism on this wedge.
Thus, during braking, pressurized air enters brake cylinder, drive screw mandrel head assembling motion by connecting rod mechanism, the assembling of screw mandrel head drives brake head to the motion of tread direction, when the brake shoe on the brake head contacts braking with tread, antagonistic force drives brake shoe and brake head rotates an angle, thereby make the wedge constraint mechanism on the brake head that the wedge that the screw mandrel head assembles is clamped, brake head is subjected to the friction force of its relative motion of obstruction, keeps the locking at inclination angle.During alleviation, screw mandrel head assembling travelling backwards, brake head is travelling backwards thereupon, thereby has realized the purpose of brake head angular adjustment, and in braking procedure next time, brake shoe and tread on the brake head are fitted fully.
Below be the technical scheme of further improvement of the present invention:
Further, described lockout mechanism comprises that lateral symmetry is arranged on two screw collar pores of brake head bottom, is contained in the threaded sleeve in two screw collar pores respectively; The axis of the threaded sleeve of two symmetric arrangement at grade, the cushion block that elastic element is housed in each threaded sleeve and is made by high friction coefficient synthetic materials has the gap of inserting for wedge between the cushion block of two symmetric arrangement.
As a kind of concrete version, described elastic element is a plurality of dish springs.
For guarantee and wedge between form bigger friction force, the angle between the opposite face of the cushion block of two symmetric arrangement is 3 ° ~ 7 °, preferably 5 °.
As a kind of concrete connection mode, be equipped with the screw sleeve hole of concentric on described screw mandrel head assembling and the brake head, in this screw sleeve hole screw sleeve is housed, the screw rod that passes in this screw sleeve links together described screw mandrel head assembling and brake head by nut and the cushion block that is contained on the screw rod.
In order to guarantee the rotation reliability of brake head, described screw sleeve hole is arranged on the middle part of brake head.
The angle of wedge of described wedge is 4 ° ~ 8 °, preferably 6 °.
By said structure, 14 dish springs respectively are equipped with in the present invention successively in the threaded sleeve of brake head both sides, 1 pad, and the cushion block of 1 high friction coefficient synthetic materials is symmetrically distributed with the brake head line of centers.Because the installation of both sides threaded sleeve surface becomes 5 ° on the brake head, makes the cushion block surface of high friction coefficient synthetic materials also be mutually a low-angle.By the predetermincd tension effect of dish spring, make the cushion block of high friction coefficient synthetic materials compress the two sides of the screw mandrel head wedge that is positioned at the brake head center, the angle of wedge two sides is 6 °.The friction moment that the cushion block of high friction coefficient synthetic materials and wedge two sides produce makes brake head keep balance and has self-align function, can keep brake shoe and wheel tread gap even automatically, avoids brake shoe partial wear.
Compared with prior art, the invention has the beneficial effects as follows: the up-to-date technology that has adopted the special friction pairs that two surfaces of the cushion block of high friction coefficient synthetic materials and screw mandrel head wedge constitute, brake head can be around its screw rod rotation under antagonistic force, automatically adjusting angle is fitted brake shoe and tread fully, simultaneously under the squeese pressure of brake head both sides dish spring, brake head is subjected to the friction force of its relative motion of obstruction, keeps the locking at inclination angle.
The pretension of dish spring has been adopted in brake head of the present invention inclination angle adjustment, the special friction pair that two surfaces of the cushion block of high friction coefficient synthetic materials and screw mandrel head wedge constitute is located, guaranteed every bit and wheel tread gap on the brake shoe evenly, the applying fully of brake shoe and wheel tread when guaranteeing to brake.Compare with traditional brake head, this novel brake head device can position and lock behind braking distance of rolling stock unit brake, does not need by regulating the angle of brake head manually.
The present invention is further elaborated below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the structure principle chart of one embodiment of the invention;
Fig. 2 is the E-E cutaway view of Fig. 1;
Fig. 3 is the D-D cutaway view of Fig. 1;
Fig. 4 is screw mandrel head assembled construction figure of the present invention.
Fig. 5 is the constructional drawing of brake head of the present invention;
Fig. 6 is the A-A cutaway view of Fig. 5;
Fig. 7 is the B-B cutaway view of Fig. 5;
Fig. 8 is the C-C cutaway view of Fig. 4;
Fig. 9 is the F-F cutaway view of Fig. 4.
In the drawings
The 1-casing; The assembling of 2-screw mandrel head; The 3-brake head; The 4-cushion block; The 5-pad;
The 6-screw sleeve; The 7-screw rod; The 8-nut; The 9-pad; The 10-threaded sleeve;
11-dish spring; The 12-pad; 13-screw mandrel head; The 14-lining; The 15-nut;
The 16-protection ring; The 17-screw mandrel; 18-wedge 19-screw collar pore; 20-screw sleeve hole.
The specific embodiment
A kind of brake head device tool for water brake, shown in Fig. 1 ~ 4, mainly by screw mandrel head assembling 2, brake head 3, threaded sleeve 10, dish spring 11, the cushion block 4 of pad 12 and high friction coefficient synthetic materials constitutes.
The lock that screw mandrel head assembling 2 screws in the casing 1 is transferred in the device, brake head 3 is inserted the screw mandrel head assemble 2 relevant positions, the centre hole of brake head 3 aligns with the centre hole of screw mandrel head assembling 2 and afterwards inserts screw sleeve 6, make screw sleeve hole 20 alignment brake shoes hang bush hole, load onto screw rod, pad, and carry out fastening with the hexagonal jam nut.Successively pack in order in 2 threaded sleeves cushion block 4 of 11,1 pads 12 of 14 dish springs and 1 high friction coefficient synthetic materials screws in 2 threaded sleeves respectively in the tapped bore of brake head two sides, up to the wedge that clamps the screw mandrel head.
When applying braking, the assembling of screw mandrel head travels forward, promote brake head by screw rod, making it hang on the bearing pin that torsion spring is housed with brake shoe is the axle center one section arching trajectory of going ahead, wedge on the screw mandrel head inserts among the cushion block of 2 high friction coefficient synthetic materials at this moment, thereby wedge is clamped, and brake head 3 is locked in motion process, is unlikely to come back, bow.When on the brake shoe certain a bit touches tread and power is delivered to tread, brake head 3 can be around its screw rod 7 rotations under antagonistic force, automatically adjusting angle is fitted brake shoe and tread fully, simultaneously because the wedge on the screw mandrel head is clamped, brake head is subjected to the friction force of its relative motion of obstruction, keeps the locking at inclination angle.The pretension of dish spring has been adopted in the adjustment of brake head inclination angle, and the special friction pair that two surfaces of the cushion block of high friction coefficient synthetic materials and screw mandrel head wedge constitute is located.This brake head device can position and lock behind braking distance of rolling stock unit brake.
The content that above-described embodiment is illustrated should be understood to these embodiment and only is used for being illustrated more clearly in the present invention, limit the scope of the invention and be not used in, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Claims (7)
1. a brake head device that is used for water brake comprises the screw mandrel head assembling (2) that is contained in the casing (1) and the brake head (3) that links to each other with this screw mandrel head assembling (2); It is characterized in that the end that described screw mandrel head assembling (2) links to each other with brake head (3) has the wedge (18) of downward extension, described brake head (3) bottom has brake head (3) is locked in lockout mechanism on this wedge (18).
2. the brake head device for water brake according to claim 1, it is characterized in that, described lockout mechanism comprises that lateral symmetry is arranged on two screw collar pores (19) of brake head (3) bottom, is contained in the threaded sleeve (10) in two screw collar pores (19) respectively; The axis of the threaded sleeve of two symmetric arrangement (10) at grade, the cushion block (4) that in each threaded sleeve (10) elastic element is housed and is made by high friction coefficient synthetic materials has the gap of inserting for wedge (18) between the cushion block of two symmetric arrangement (4).
3. the brake head device for water brake according to claim 2 is characterized in that, described elastic element is a plurality of dish springs (11).
4. the brake head device for water brake according to claim 2 is characterized in that, the angle between the opposite face of the cushion block of two symmetric arrangement (4) is 3 ° ~ 7 °.
5. the brake head device for water brake according to claim 1, it is characterized in that, be equipped with the screw sleeve hole (20) of concentric on described screw mandrel head assembling (2) and the brake head (3), in this screw sleeve hole (20) screw sleeve (6) is housed, pass screw rod (7) in this screw sleeve (6) by being contained in the nut (8) on the screw rod (7) and described screw mandrel head is assembled (2) with pad (5,9) and brake head (3) links together.
6. the brake head device for water brake according to claim 5 is characterized in that, described screw sleeve hole (20) is arranged on the middle part of brake head (3).
7. according to the described brake head device for water brake of one of claim 1 ~ 6, it is characterized in that the angle of wedge of described wedge (18) is 4 ° ~ 8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103211550A CN103342129A (en) | 2013-07-29 | 2013-07-29 | Brake head device for locomotive brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103211550A CN103342129A (en) | 2013-07-29 | 2013-07-29 | Brake head device for locomotive brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103342129A true CN103342129A (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103211550A Pending CN103342129A (en) | 2013-07-29 | 2013-07-29 | Brake head device for locomotive brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103342129A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109153391A (en) * | 2016-05-11 | 2019-01-04 | 西屋空气制动设备技术公司 | Clast for bogie installation braking system removes brake head |
| CN110905940A (en) * | 2019-11-19 | 2020-03-24 | 辽宁红德电碳制品有限公司 | Composite brake shoe for locomotive |
| CN112550677A (en) * | 2020-12-11 | 2021-03-26 | 兰州飞行控制有限责任公司 | Structure and method for adjusting starting preload of torsional artificial sensory force |
| CN114394122A (en) * | 2022-01-20 | 2022-04-26 | 南京中车浦镇海泰制动设备有限公司 | Stable mechanism for relieving gap |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1605853A1 (en) * | 1968-01-12 | 1975-07-31 | Knorr Bremse Gmbh | Block brake, especially for rail vehicles |
| US4650040A (en) * | 1983-10-11 | 1987-03-17 | Knorr-Bremse Ag | Block brake for rail vehicles |
| CN101439723A (en) * | 2008-12-29 | 2009-05-27 | 南车南京浦镇车辆有限公司 | Adaptive wheel tread break unit |
| JP2011122703A (en) * | 2009-12-14 | 2011-06-23 | Mitsubishi Heavy Ind Ltd | Brake device |
| CN102216640A (en) * | 2008-11-18 | 2011-10-12 | 纳博特斯克株式会社 | Unit brake |
| CN203391800U (en) * | 2013-07-29 | 2014-01-15 | 南车株洲电力机车有限公司 | Brake shoe holder device for locomotive brake |
-
2013
- 2013-07-29 CN CN2013103211550A patent/CN103342129A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1605853A1 (en) * | 1968-01-12 | 1975-07-31 | Knorr Bremse Gmbh | Block brake, especially for rail vehicles |
| US4650040A (en) * | 1983-10-11 | 1987-03-17 | Knorr-Bremse Ag | Block brake for rail vehicles |
| CN102216640A (en) * | 2008-11-18 | 2011-10-12 | 纳博特斯克株式会社 | Unit brake |
| CN101439723A (en) * | 2008-12-29 | 2009-05-27 | 南车南京浦镇车辆有限公司 | Adaptive wheel tread break unit |
| JP2011122703A (en) * | 2009-12-14 | 2011-06-23 | Mitsubishi Heavy Ind Ltd | Brake device |
| CN203391800U (en) * | 2013-07-29 | 2014-01-15 | 南车株洲电力机车有限公司 | Brake shoe holder device for locomotive brake |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109153391A (en) * | 2016-05-11 | 2019-01-04 | 西屋空气制动设备技术公司 | Clast for bogie installation braking system removes brake head |
| CN110905940A (en) * | 2019-11-19 | 2020-03-24 | 辽宁红德电碳制品有限公司 | Composite brake shoe for locomotive |
| CN112550677A (en) * | 2020-12-11 | 2021-03-26 | 兰州飞行控制有限责任公司 | Structure and method for adjusting starting preload of torsional artificial sensory force |
| CN112550677B (en) * | 2020-12-11 | 2022-08-30 | 兰州飞行控制有限责任公司 | Structure and method for adjusting starting preload of torsional artificial sensory force |
| CN114394122A (en) * | 2022-01-20 | 2022-04-26 | 南京中车浦镇海泰制动设备有限公司 | Stable mechanism for relieving gap |
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| PB01 | Publication | ||
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Application publication date: 20131009 |