CN203892417U - Wet-type disc-type tractor brake having friction plate abrasion self-compensation structure - Google Patents
Wet-type disc-type tractor brake having friction plate abrasion self-compensation structure Download PDFInfo
- Publication number
- CN203892417U CN203892417U CN201420271251.9U CN201420271251U CN203892417U CN 203892417 U CN203892417 U CN 203892417U CN 201420271251 U CN201420271251 U CN 201420271251U CN 203892417 U CN203892417 U CN 203892417U
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- Prior art keywords
- brake
- shaft sleeve
- friction plate
- piston
- compensation structure
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- 238000005299 abrasion Methods 0.000 title claims abstract description 21
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The utility model relates to a wet-type disc-type tractor brake having a friction plate abrasion self-compensation structure. The wet-type disc-type tractor brake comprises a brake piston and the friction plates. The friction plates are used for compressed friction with the brake piston. The brake piston is provided with the friction plate abrasion self-compensation structure comprising a piston guide limiting rod, a limiting shaft sleeve, reset springs and an abrasion compensation adjusting ring. The limiting shaft sleeve and the reset springs sleeve the piston guide limiting rod. The abrasion compensation adjusting ring sleeves the limiting shaft sleeve. By the use of the wet-type disc-type tractor brake, automatic adjusting of gaps between the brake piston and the friction plates, and safety of drivers, after the friction plates are abraded, are guaranteed; constant stroke and control force of a brake pedal are guaranteed; labor intensity of drivers is reduced, work efficiency is improved, and service life of a brake plate is prolonged. The adjusting ring, sleeving the limiting shaft sleeve, is of a bent shape, thus axially component force is increased, and fixing effect is strengthened. The reset springs are of butterfly shapes, thereby improving stiffness thereof.
Description
Technical field
The utility model relates to a kind of tractor brake structure, specifically, relates to a kind of tractor wet disk type braker with friction plate abrasion automatic compensation structure.
Background technique
Tractor brake is the important device in tractor braking system, and when brake activation pedal, break produces braking force, tractor is slowed down or stop rapidly.When adopting one side brake, can turn to by complementary tractor, reduce radius of turn, improve tractor mobility.
Existing wet disc brake is to increase brake-pedal travel by driver, i.e. piston travel carrys out the wear extent of friction compensation sheet, increases driver's labor intensity, shortens braking plate working life.When break adopts multi-disc, the gap after wearing and tearing is larger, and this problem is more outstanding, and even the reliability of impact braking, causes security incident.
Model utility content
For above-mentioned deficiency of the prior art, the utility model provides a kind of mechanism automatically wearing and tearing of friction plate being compensated, the tractor wet disk type braker with friction plate abrasion automatic compensation structure that brake-pedal travel is remained unchanged.
Technical solution adopted in the utility model is:
A kind of tractor wet disk type braker with friction plate abrasion automatic compensation structure, comprise brake piston and compress with brake piston the friction plate rubbing, on brake piston, be provided with friction plate abrasion automatic compensation structure, this automatic compensation structure comprises the piston guide position-limited lever being connected in the spacing hole forming on brake piston, the limit shaft sleeve being socketed on piston guide position-limited lever and return spring, and the wear compensation adjustment ring that is socketed in limit shaft sleeve periphery.A part for limit shaft sleeve is positioned at the spacing hole on brake piston, and wear compensation adjustment ring is located at outside spacing hole, and its external diameter is greater than the aperture of spacing hole; Return spring one end is connected with the club head portion contact of piston guide position-limited lever, and the other end contact is connected to one end of limit shaft sleeve.
The diameter of the club head portion of described piston guide position-limited lever is greater than the diameter of epimere part, and the diameter of epimere part is greater than the diameter of stage casing part; On the inwall of limit shaft sleeve intermediate portion, be formed with ladder, the wall thickness of ladder left part is greater than the wall thickness of ladder right side part, between ladder and piston guide position-limited lever epimere part and part joint, stage casing, forms gap.
The cross section of described wear compensation adjustment ring is kink shape.Wear compensation adjustment ring in return direction with the relative friction forces of limit shaft sleeve be greater than limit shaft sleeve in return direction with the relative friction forces of brake piston.
Described return spring adopts belleville spring.
The beneficial effect of the relative prior art of the utility model:
The utility model is when braking, brake piston promotes wear compensation adjustment ring and drives limit shaft sleeve motion, at limit shaft sleeve, moved after distance A, guide rod step contacts with limit shaft sleeve step, limit shaft sleeve stop motion, and compensation adjustment ring produces relative movement with limit shaft sleeve under brake piston effect, brake piston compresses friction plate simultaneously, brakes.
During take-off the brake, under belleville spring effect, promote limit shaft sleeve, by the frictional force of itself and wear compensation interannular, with the moving brake piston of wear compensation endless belt, reset, return stroke A, friction plate unclamps, and guarantees that the relative position of brake piston and friction plate is constant, and piston travel is fixed as A.
The utility model has realized brake piston and friction plate gap is adjusted automatically, has greatly ensured driver's safety after friction disc wear; Guarantee that brake-pedal travel keeps invariable, keeps the steering force of brake petal constant; Alleviate driver's labor intensity, improve operating efficiency, increase the braking plate life-span.The adjustment ring being socketed on limit shaft sleeve is kink shape, can increase axial thrust load, strengthens fixed effect.Return spring adopts belleville spring, has increased the rigidity of spring.
Accompanying drawing explanation
Fig. 1 is the structural representation with the tractor wet disk type braker of friction plate abrasion automatic compensation structure of the present utility model;
Fig. 2 is the enlarged view of C portion in Fig. 1;
Fig. 3 is the long splice composition of piston guide position-limited lever of the present utility model and limit shaft sleeve.
Critical piece symbol description in accompanying drawing:
1: brake casing 2: locating stud
3: semiaxis 4: brake piston
5: limit shaft sleeve 6: wear compensation adjustment ring
7: brake oil import 8: piston guide position-limited lever
9: belleville spring 10: friction plate
11: club head portion 12: epimere part
13: stage casing part 14: ladder.
Embodiment
Referring to drawings and the specific embodiments, the tractor wet disk type braker with friction plate abrasion automatic compensation structure of the present utility model is described in detail.
Fig. 1 is the structural representation with the tractor wet disk type braker of friction plate abrasion automatic compensation structure of the present utility model; Fig. 2 is the enlarged view of C portion in Fig. 1.As depicted in figs. 1 and 2, the wet brake with friction plate abrasion automatic compensation structure of the present utility model, comprise brake piston 4 and compress with brake piston 4 friction plate 10 rubbing, on brake piston 4, be provided with friction plate abrasion automatic compensation structure, under brake condition not with the gapped B of friction plate.
This automatic compensation structure comprises brake piston 4, piston guide position-limited lever 8, limit shaft sleeve 5 and belleville spring 9, and the wear compensation adjustment ring 6 that is socketed in limit shaft sleeve 5 peripheries.
Position-limited lever 8 is fixed on brake casing 1, is positioned at the outside of friction plate 10.Limit shaft sleeve 5 is arranged on brake piston 4 spacing holes, and its right-hand member extend out to outside spacing hole.Wear compensation adjustment ring 6 is located at outside spacing hole 4 and coordinates with limit shaft sleeve 5, and its external diameter is greater than the aperture of spacing hole.Return spring 9 adopts belleville spring, and one end is connected with club head portion 11 contacts of piston guide position-limited lever 8, and the other end contact is connected to the right side of limit shaft sleeve 5.
Fig. 3 is the long splice composition of piston guide position-limited lever of the present utility model and limit shaft sleeve.As shown in Figure 3, piston guide position-limited lever 8 adopts stepped design.The inner stepped design that adopts of limit shaft sleeve 5 has ladder 14, ladder left part is socketed in the stage casing part 13 of piston guide position-limited lever 8, ladder right side part is socketed in the epimere part 12 of piston guide position-limited lever 8, gapped A between ladder 14 and piston guide position-limited lever epimere part and part joint, stage casing.
When friction plate not under abrasion condition period of braking gap A equate with gap B distance, brake piston 4 motions, by wear compensation adjustment ring 6, drive limit shaft sleeve 5 to move together until eliminate completely in A gap, now limit shaft sleeve 5 stop motions, the beginning compression friction friction plate 10 between brake piston 4 and friction plate carries out simultaneously.After brake off, return spring 9 promotes limit shaft sleeve 5 and drives wear compensation adjustment ring 6 to promote brake piston 4 resets.When the pressure balance of the suffered oil liquid pressure of brake piston 4 and belleville spring 9, be just parked in this position.
Once friction plate 10 produces wearing and tearing, be that gap B is greater than gap A, when braking, eliminate and the not elimination completely of B gap completely in A gap, and now under pressure oil effect, brake piston 4 can promotion wear compensation adjustment rings 6 move on, and limit shaft sleeve 5 can not be advanced by 8 restrictions of piston guide position-limited lever thereupon, at this moment wear compensation adjustment ring 6 relative limit axle sleeve 5 under the effect of brake piston 4 slides, until gap B eliminates completely, now brake piston 4 pressing friction sheets 10, brake.During brake off, belleville spring 9 promotes limit shaft sleeve 5 and drives wear compensation adjustment ring 6 together to move by relative friction forces, and while making by wear compensation adjustment ring 6 promotion brake piston 4 returns, gap A equals again gap B.When friction plate 10 wearing and tearing, constantly repeat said process like this, remain that gap A equals gap B, realize the gap of 4 of friction plate 10 and brake pistons and automatically adjust, guarantee that braking distance is constant.
Claims (4)
1. a tractor wet disk type braker with friction plate abrasion automatic compensation structure, comprise brake piston (4) and compress with brake piston (4) friction plate (10) rubbing, it is characterized in that: on brake piston (4), be provided with friction plate abrasion automatic compensation structure, this automatic compensation structure comprises the piston guide position-limited lever (8) being connected in the upper spacing hole forming of brake piston (4), limit shaft sleeve (5) and the return spring (9) of the upper socket of piston guide position-limited lever (8), and the wear compensation adjustment ring (6) that is socketed in limit shaft sleeve (5) periphery, a part for limit shaft sleeve (5) is positioned at the spacing hole on brake piston (4), and wear compensation adjustment ring (6) is located at outside spacing hole, and its external diameter is greater than the aperture of spacing hole, return spring (9) one end is connected with club head portion (11) contact of piston guide position-limited lever (8), and the other end contact is connected to one end of limit shaft sleeve (5).
2. the tractor wet disk type braker with friction plate abrasion automatic compensation structure according to claim 1, is characterized in that: piston guide position-limited lever (8) adopts stepped design, and wherein the diameter of (12) part is greater than the diameter of (13) part; The inner stepped design that adopts of limit shaft sleeve (5), forms compensate for clearance A between ladder (14) and piston guide position-limited lever epimere part and part joint, stage casing.
3. according to claim 1 or the tractor wet disk type braker with friction plate abrasion automatic compensation structure claimed in claim 2, it is characterized in that: the cross section of wear compensation adjustment ring (6) is kink shape.
4. according to claim 1 or the tractor wet disk type braker with friction plate abrasion automatic compensation structure claimed in claim 2, it is characterized in that: return spring (9) adopts belleville spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271251.9U CN203892417U (en) | 2014-05-26 | 2014-05-26 | Wet-type disc-type tractor brake having friction plate abrasion self-compensation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420271251.9U CN203892417U (en) | 2014-05-26 | 2014-05-26 | Wet-type disc-type tractor brake having friction plate abrasion self-compensation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892417U true CN203892417U (en) | 2014-10-22 |
Family
ID=51718825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420271251.9U Expired - Lifetime CN203892417U (en) | 2014-05-26 | 2014-05-26 | Wet-type disc-type tractor brake having friction plate abrasion self-compensation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892417U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289047A (en) * | 2017-07-21 | 2017-10-24 | 雷沃重工股份有限公司 | A kind of tractor carries the brake and tractor of adjustment structure |
| CN112747055A (en) * | 2021-01-29 | 2021-05-04 | 第一拖拉机股份有限公司 | Brake with automatic adjusting mechanism |
| CN114576289A (en) * | 2022-01-28 | 2022-06-03 | 徐州徐工传动科技有限公司 | Go and stay integrative stopper |
-
2014
- 2014-05-26 CN CN201420271251.9U patent/CN203892417U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289047A (en) * | 2017-07-21 | 2017-10-24 | 雷沃重工股份有限公司 | A kind of tractor carries the brake and tractor of adjustment structure |
| CN112747055A (en) * | 2021-01-29 | 2021-05-04 | 第一拖拉机股份有限公司 | Brake with automatic adjusting mechanism |
| CN112747055B (en) * | 2021-01-29 | 2022-10-28 | 第一拖拉机股份有限公司 | Brake with automatic adjusting mechanism |
| CN114576289A (en) * | 2022-01-28 | 2022-06-03 | 徐州徐工传动科技有限公司 | Go and stay integrative stopper |
| CN114576289B (en) * | 2022-01-28 | 2023-11-07 | 徐州徐工传动科技有限公司 | Traveling and parking integrated brake |
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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: 261206 Beihai South Road, Fangzi District, Shandong, No. 192, No. Patentee after: LOVOL HEAVY INDUSTRY Co.,Ltd. Address before: 261206 Beihai South Road, Fangzi District, Shandong, No. 192, No. Patentee before: FOTON LOVOL INTERNATIONAL HEAVY INDUSTRY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |