CN201062643Y - Wet-type multi-disc brake for loader drive axle - Google Patents
Wet-type multi-disc brake for loader drive axle Download PDFInfo
- Publication number
- CN201062643Y CN201062643Y CNU2007200411324U CN200720041132U CN201062643Y CN 201062643 Y CN201062643 Y CN 201062643Y CN U2007200411324 U CNU2007200411324 U CN U2007200411324U CN 200720041132 U CN200720041132 U CN 200720041132U CN 201062643 Y CN201062643 Y CN 201062643Y
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- Prior art keywords
- brake
- piston
- wet
- brake casing
- braking
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Abstract
The utility model relates to a wet multidisc brake used for the driving axle of a loader, which belongs to a wet multidisc brake. The brake comprises a supporting axle and a brake casing, a friction pair and a piston are connected in the brake casing, an oil inlet hole and an oil outlet hole are arranged on the brake casing, the piston and the friction pair are connected in sequence in the axial direction, a spline sleeve is arranged at the center of the supporting axle and the brake casing, and the piston is sleeved outside the spline sleeve. The utility model has the advantages that the working environment of the wet brake is an enclosed environment and is not influenced by the external environment; both the brake disc and the friction disk are immersed in lubricating oil, and therefore the heat radiation is good; the frictional contact of the multidisc type enlarges the frictional contact surface and ensures the braking to be more reliable.
Description
Technical field
The utility model relates to a cover ransaxle wet brake, more particularly, is the Wet-type multi-disc formula break that a cover loader ransaxle uses.
Background technique
At present, what domestic loader ransaxle generally adopted with brake assembly is caliper disc brake, and caliper disc brake mainly partly is made up of bolt, brake disc, screw, caliper body, brake-caliper support, left and right sides piston, seal ring, dust ring, drag friction piece, bearing pin, guide plate etc.Brake disc is fixed by bolt and wheel hub, rotates with wheel.Brake-caliper support is connected and fixed by the flange plate on bolt and the axle housing end axle, caliper body by screw on brake-caliper support, there are two pairs of pistons to adopt the seal ring sealing in the caliper body, dust ring is dustproof, they are with respect to the both ends of the surface symmetric arrangement of brake disc, and the drag friction piece is embedded on the guide plate, form overall structure, be contained between piston and the brake disc, can be along pin slide.When hydraulic oil enters the caliper body inner chamber, the piston of symmetric arrangement is moved inward simultaneously, promote drag friction piece shape such as clamp and clamp brake disc, thereby produce braking.When hydraulic oil is discharged, piston is under the elastic restoring force effect of seal ring and return, thus brake off.
For wet brake, there is following shortcoming in caliper disc brake: 1, because brake disc is exposed to the outside all the time, very easily be stained with mud, water, oil, influence braking effect; 2, friction area is little, and the unit pressure height is had relatively high expectations to the strength character and the heat-resisting quantity of friction plate material.
Summary of the invention
The purpose of this utility model is that the safe and reliable loader ransaxle of a kind of braking ability Wet-type multi-disc formula break will be provided.
The purpose of this utility model is achieved in that this break has supporting axle and brake casing, in brake casing, be connected with friction pair and piston, oil inlet hole and oil outlet are arranged on brake casing, piston is connected with the friction pair axial order, centre bit at supporting axle and brake casing is equipped with spline housing, and piston sleeve is outside spline housing.
Friction pair has friction plate and braking plate, and friction plate is inlaid on the spline housing; Braking plate and friction plate are installed at interval successively side by side, on the braking plate radial circumference arc gap are arranged, and there is guide finger at the place at arc gap, and guide finger is installed on the brake casing.
Porose on the piston, be installed with spring bolt and be inserted in the hole, spring is pressed on the hole of piston, and bolt is connected with brake casing.
Between brake casing and supporting axle, be connected with seal ring.
Beneficial effect: owing to adopted such scheme, supporting axle and braking shell combination make inner chamber form the space of a sealing, both can hold lubricant oil, the core part of this break can be installed in the inside again.Wherein, piston is installed in the braking housing, and radial seal realizes by the star seal ring; Braking plate and friction plate are formed friction pair, friction plate is inlaid on the spline housing, braking plate and friction plate are installed at interval successively side by side, be evenly equipped with four arc gaps on the braking plate radial circumference, and cooperate the location with corresponding four guide fingers, and the guide finger cooperation is installed on the braking housing, is greater than its axial stroke in inner chamber with the stroke that cooperates of braking housing; Spring is pressed on the piston end surface and by being bolted to and brakes on the housing.After hydraulic oil enters brake casing inside by filler opening, under the effect of oil pressure, promote piston and axially move, make to form compacting mutually between braking plate and the friction plate frictional resistance moment, thereby finish braking action; After the hydraulic oil oil return, hydraulic fluid pressure is removed, and pressure spring drives the piston return, make between braking plate and the friction plate and contact disengagement, friction torque disappears, thereby finishes brake off, configuration structure is reasonable, and braking ability is safe and reliable, has reached the purpose of this utility model.
Advantage: the advantage of wet brake is that its working environment is the environment of a sealing and be not subjected to the influence of external environment; Braking plate and friction plate all are immersed in the lubricant oil, and thermal diffusivity is good; The rubbing contact of multidisc has increased the rubbing contact surface, makes braking more reliable.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Fig. 2 is that the A of Fig. 1 is to structural drawing.
Embodiment
Embodiment 1: among the figure, and 1, deflating valve, 2. plug screw seat, 3. screw plug, 6. internal support sleeve, 7. supporting axle, 8. supporting ring, 9. brake casing, 10. magnetic plug screw, 11. magnetic plug screw seal rings, 12. braking plates, 13. friction plates, 14. inner shield rings, 15. inner seal rings, 16. exterior seal rings, 17. outer back-up rings, 18. pistons, 19. bolts, 20. springs, 21. outer supporting sleeves, 22. spline housings, 23. guide fingers
This break has supporting axle and brake casing, in brake casing, be connected with friction pair and piston, oil inlet hole and oil outlet are arranged on brake casing 9, connect screw plug 3 on the oil inlet hole, connect magnetic plug screw 10 on the oil outlet, piston is connected with the friction pair axial order, is equipped with spline housing 22 at the centre bit of supporting axle 7 and brake casing 9, and piston 18 is enclosed within outside the spline housing 22.
Friction pair has friction plate 13 and braking plate 12, and friction plate is inlaid on the spline housing 22; Braking plate and friction plate are installed at interval successively side by side, on the braking plate radial circumference arc gap are arranged, and at the arc gap place guide finger 23 are arranged, and guide finger is installed on the brake casing 9.
Porose on the piston 18, there is the bolt 19 that is installed with spring 20 to be inserted in the hole, spring 20 is pressed on the hole of piston, and bolt 19 is connected with brake casing 9.
Between brake casing and supporting axle, be connected with seal ring.
Supporting axle 7 and brake casing 9 common combinations constitute the shell of this break, and inner chamber forms the space of a sealing, both can hold lubricant oil, the core part of this break can be installed in the inside again.With supporting ring sealing 8, supporting ring 8 be an O-ring seals between braking housing one end and the supporting axle, uses sequence number 8 supporting rings to seal equally on the other end and the periphery that axle housing is connected.Simultaneously, the other end design of braking housing has oil-through hole, and the lubricant oil in the brake assembly is communicated with lubricant oil in the axle housing, has strengthened the heat dispersion of break.On the cylindrical of braking housing deflating valve 1, plug screw seat 2, screw plug 3 and magnetic plug screw 10, magnetic plug screw seal ring 11 are installed, magnetic plug screw seal ring 11 is an O-ring seals.
At the inner chamber two ends of above-mentioned formation internal support sleeve 6 and outer supporting sleeve 21 are housed respectively, in the middle of spline housing 22 is installed in, match with above two supporting sleeves respectively in two.Piston 18 is installed on the brake casing 9, and radial seal between the two realizes by inner shield ring 14, inner seal ring 15 and exterior seal ring 16, outer back-up ring 17.Inner seal ring 15 and exterior seal ring 16 are the star seal ring.
6 braking plates 12 and 5 friction plates 13 are formed friction pair, friction plate is inlaid on the spline housing, braking plate and friction plate are installed successively at interval side by side, be evenly equipped with four arc gaps on the braking plate radial circumference, and cooperate the location with corresponding four guide fingers 23, and the guide finger cooperation is installed on the braking housing, and the guide finger of designing requirement simultaneously is greater than its axially movable stroke in inner chamber with the stroke that cooperates of braking housing.
What spring 20 was selected for use is stage clip.Certain preload pressure is promptly arranged under off working state, promote piston motion under the effect at oil pressure, when compressing braking plate and friction plate realization braking, spring is also further compressed, but still keeps certain working stroke in its elastic range; When removing oil pressure, the length of spring compressed return, and drive piston return simultaneously, thus realize brake off.
By above-mentioned design, make lubricant oil that the break inner chamber the contains oil pressure of held stationary effectively, and easy to leak not, lubricated and thermal diffusivity is good; The stage clip of selecting for use is the return of control piston effectively, makes that finally the braking ability that break produced is more steadily effective.
Claims (4)
1. a loader ransaxle is with Wet-type multi-disc formula break, it is characterized in that: this break has supporting axle and brake casing, in brake casing, be connected with friction pair and piston, oil inlet hole and oil outlet are arranged on brake casing, piston is connected with the friction pair axial order, centre bit at supporting axle and brake casing is equipped with spline housing, and piston sleeve is outside spline housing.
2. loader ransaxle according to claim 1 Wet-type multi-disc formula break, it is characterized in that: friction pair has friction plate and braking plate, and friction plate is inlaid on the spline housing; Braking plate and friction plate are installed at interval successively side by side, on the braking plate radial circumference arc gap are arranged, and there is guide finger at the place at arc gap, and guide finger is installed on the brake casing.
3. loader ransaxle according to claim 1 Wet-type multi-disc formula break is characterized in that: porose on the piston, and be installed with spring bolt and be inserted in the hole, spring is pressed on the hole of piston, and bolt is connected with brake casing.
4. loader ransaxle according to claim 1 is characterized in that: be connected with seal ring between brake casing and supporting axle with Wet-type multi-disc formula break.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200411324U CN201062643Y (en) | 2007-07-31 | 2007-07-31 | Wet-type multi-disc brake for loader drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200411324U CN201062643Y (en) | 2007-07-31 | 2007-07-31 | Wet-type multi-disc brake for loader drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201062643Y true CN201062643Y (en) | 2008-05-21 |
Family
ID=39451018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200411324U Expired - Lifetime CN201062643Y (en) | 2007-07-31 | 2007-07-31 | Wet-type multi-disc brake for loader drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201062643Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537143A (en) * | 2012-01-08 | 2012-07-04 | 中国煤炭科工集团太原研究院 | Multiple-disc wet-type large-torsion brake |
| CN102774367A (en) * | 2012-07-31 | 2012-11-14 | 肥城众力机械有限公司 | Wet type braking device for driving axle |
| CN102927165A (en) * | 2012-10-22 | 2013-02-13 | 徐州五洋科技股份有限公司 | Liquid-viscous soft-braking device |
| CN102927164A (en) * | 2012-10-10 | 2013-02-13 | 江苏大学 | Soft brake employing liquid viscosity |
| CN106050988A (en) * | 2016-04-21 | 2016-10-26 | 任建龙 | Novel wet type multi-disc brake |
| CN107882900A (en) * | 2017-12-25 | 2018-04-06 | 徐工集团工程机械有限公司 | Brake and engineering truck |
| CN109058327A (en) * | 2018-10-08 | 2018-12-21 | 山东云宇机械集团有限公司 | Braking semi-shaft equipment for driving bridge for engineering machinery |
| CN110469603A (en) * | 2019-08-16 | 2019-11-19 | 徐州徐工矿业机械有限公司 | A kind of wet brake and hub reduction driving device |
| CN111306220A (en) * | 2020-03-03 | 2020-06-19 | 一汽解放汽车有限公司 | Intermediate shaft brake |
| CN113483039A (en) * | 2021-07-16 | 2021-10-08 | 安徽合力股份有限公司 | Wet brake |
| WO2024056120A1 (en) * | 2022-09-15 | 2024-03-21 | Schaeffler Technologies AG & Co. KG | Brake device and electrically operatable axle drivetrain of a motor vehicle |
-
2007
- 2007-07-31 CN CNU2007200411324U patent/CN201062643Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537143A (en) * | 2012-01-08 | 2012-07-04 | 中国煤炭科工集团太原研究院 | Multiple-disc wet-type large-torsion brake |
| CN102537143B (en) * | 2012-01-08 | 2013-10-16 | 中国煤炭科工集团太原研究院 | Multiple-disc wet-type large-torsion brake |
| CN102774367A (en) * | 2012-07-31 | 2012-11-14 | 肥城众力机械有限公司 | Wet type braking device for driving axle |
| CN102927164A (en) * | 2012-10-10 | 2013-02-13 | 江苏大学 | Soft brake employing liquid viscosity |
| CN102927165A (en) * | 2012-10-22 | 2013-02-13 | 徐州五洋科技股份有限公司 | Liquid-viscous soft-braking device |
| CN106050988A (en) * | 2016-04-21 | 2016-10-26 | 任建龙 | Novel wet type multi-disc brake |
| CN107882900A (en) * | 2017-12-25 | 2018-04-06 | 徐工集团工程机械有限公司 | Brake and engineering truck |
| CN109058327A (en) * | 2018-10-08 | 2018-12-21 | 山东云宇机械集团有限公司 | Braking semi-shaft equipment for driving bridge for engineering machinery |
| CN109058327B (en) * | 2018-10-08 | 2024-01-26 | 山东云宇机械集团有限公司 | Brake half shaft device for engineering machinery drive axle |
| CN110469603A (en) * | 2019-08-16 | 2019-11-19 | 徐州徐工矿业机械有限公司 | A kind of wet brake and hub reduction driving device |
| CN111306220A (en) * | 2020-03-03 | 2020-06-19 | 一汽解放汽车有限公司 | Intermediate shaft brake |
| CN111306220B (en) * | 2020-03-03 | 2021-08-20 | 一汽解放汽车有限公司 | Intermediate shaft brake |
| CN113483039A (en) * | 2021-07-16 | 2021-10-08 | 安徽合力股份有限公司 | Wet brake |
| WO2024056120A1 (en) * | 2022-09-15 | 2024-03-21 | Schaeffler Technologies AG & Co. KG | Brake device and electrically operatable axle drivetrain of a motor vehicle |
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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: 20080521 |
|
| CX01 | Expiry of patent term |