CN102774367A - Wet type braking device for driving axle - Google Patents
Wet type braking device for driving axle Download PDFInfo
- Publication number
- CN102774367A CN102774367A CN2012102679357A CN201210267935A CN102774367A CN 102774367 A CN102774367 A CN 102774367A CN 2012102679357 A CN2012102679357 A CN 2012102679357A CN 201210267935 A CN201210267935 A CN 201210267935A CN 102774367 A CN102774367 A CN 102774367A
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- piston
- axle housing
- central siphon
- semiaxis
- internal
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Abstract
The invention relates to a wet type braking device for a driving axle. The wet type braking device comprises a friction clutch and a spring reset device (2), wherein the friction clutch is arranged in a cavity formed by a shaft pipe (7) and an axle case (8), is sheathed on a half axle (9) and is used for connecting the half axle (9) with the shaft pipe (7), the spring reset device (2) is arranged between the clutch and the axle case (8) and is used for resetting the clutch. The device realizes the combination and the separation of the clutch through the oil pressure, and the brake and the reset are realized, so the braking moment is greater, the size is smaller, and the installation is more convenient.
Description
Technical field
The present invention relates to a kind of wet type braking device that is used for drive axle, especially a kind of adaptation is used for reaching on coal mine explosion-proof diesel engine railless free-wheeled vehicle, the explosion-proof loader wet type braking device of the drive axle of colliery assistant conveyance.
Background technology
In construction machinery and equipment, in order to make engineering machinery walking, need be on engineering machinery chassis the installing drive bridge, in order to guarantee the driving safety of drive axle, brake equipment must be installed on drive axle, so brake equipment is important components of drive axle.
In existing brake equipment; It mostly is the braking of drum brake and caliper disc; Promptly brake through the friction force on asbestos friction sheet and unitary piece of metal brake disc surface, this brake mode contact surface few (single sheetmetal), nothing cooling, unlubricated, thereby be referred to as the dry type braking.Though this its reliability of brake mode braking effect, life-span are through improving modes such as asbestos additive in continuous raising; But, progressively be eliminated, and the dry type friction is braked through the friction force between the single plane owing to receive the restriction of aspects such as material, technological condition, friction heat, maintenance; The friction moment size receives the restriction of brake disc size; In order to improve braking force, need to increase the area of brake disc, thereby influenced the layout of drive axle.
Summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this invention is to provide a kind of wet type braking device that is used for the drive axle glancing impact, make that the drive axle lock torque is bigger, volume is littler, and is easier for installation.
For achieving the above object, the technical scheme that the present invention takes is: include and be arranged in the cavity that central siphon and axle housing form and be sleeved on the friction clutch that is used on the semiaxis linking together semiaxis and central siphon, be arranged between power-transfer clutch and the axle housing and be used to make the spring returning device of clutch reset.
Be communicated with power-transfer clutch with hydraulic efficiency pressure system, work as glancing impact, high hydraulic brake fluid gets in the power-transfer clutch, and the power-transfer clutch effect links together semiaxis and central siphon, thereby realizes braking; When the needs brake off, the hydraulic efficiency pressure system pressure release, under the effect of spring returning device, friction lining loses axle pressure, is in free state, and braking is removed.
The present invention has designed, and the spring returning device is set to a plurality of and is set to be distributed on the circumference between power-transfer clutch and the axle housing.
The present invention has designed; The spring returning device is set to include spring and pilot bar; Pilot bar is set to connect with trip ring, and trip ring is connected with axle housing, and spring housing is contained on the pilot bar; One end of spring is set to connect with trip ring, and the back-up ring connection connects with axle housing and the other end is set to connect with piston.
The present invention has designed, and power-transfer clutch is set to include piston, internal fixation disc, internal toothed friction plate, external tooth friction lining and external fixation dish; Central siphon is set to axle housing and connects; Be provided with cavity and piston, spring returning device, internal fixation disc, internal toothed friction plate, external tooth friction lining and external fixation dish at central siphon and axle housing connecting portion; Piston is arranged in the axle housing and is sleeved on the semiaxis, between piston and axle housing, is provided with the spring returning device; Internal fixation disc, internal toothed friction plate, external tooth friction lining and external fixation dish are arranged in the cavity of central siphon and are set to respectively connect with the semiaxis suit; Internal fixation disc is set to connect with the piston contact; The external fixation dish is set to connect with the central siphon contact; Internal toothed friction plate and external tooth friction lining are arranged between internal fixation disc and the external fixation dish; Internal toothed friction plate and external tooth friction lining are set to interval type and distribute, and internal toothed friction plate is set to connect with semiaxis is engagement type, and external tooth friction lining and inside and outside reaction plate are set to connect with central siphon is engagement type.
The present invention has designed, and is provided with the hard chrome coating at the outside face of piston.
In the present technique scheme, the interval type of internal toothed friction plate and external tooth friction lining distributes and to be meant that the right side that is provided with a slice external tooth friction lining on the right side of a slice internal toothed friction plate and is provided with a slice external tooth friction lining or a slice external tooth friction lining in the left side is provided with a slice internal toothed friction plate and to be provided with a slice internal toothed friction plate in the left side.
Description of drawings
Fig. 1 is a scheme drawing of the present invention:
Fig. 2 is the structural representation of spring returning device 2.
The specific embodiment
Accompanying drawing is one embodiment of the present of invention, specifies present embodiment in conjunction with accompanying drawing, is set to include piston 1, internal fixation disc 3, internal toothed friction plate 4, external tooth friction lining 5 and external fixation dish 6; Central siphon 7 is set to axle housing 8 and connects; Be provided with cavity and piston 1, spring returning device 2, internal fixation disc 3, internal toothed friction plate 4, external tooth friction lining 5 and external fixation dish 6 at central siphon 7 and axle housing 8 connecting portions; Piston 1 is arranged in the axle housing 8 and is sleeved on the semiaxis 9, between piston 1 and axle housing 8, is provided with spring returning device 2; Internal fixation disc 3, internal toothed friction plate 4, external tooth friction lining 5 and external fixation dish 6 are arranged in the cavity of central siphon 7 and are set to respectively connect with semiaxis 9 suits; Internal fixation disc 3 is set to connect with piston 1 contact; External fixation dish 6 is set to connect with central siphon 7 contacts; Internal toothed friction plate 4 and external tooth friction lining 5 are arranged between internal fixation disc 3 and the external fixation dish 6; Internal toothed friction plate 4 is set to interval type with external tooth friction lining 5 and distributes, and internal toothed friction plate 4 is set to and 9 engagement type connections of semiaxis, and external tooth friction lining 5 is set to and 7 engagement type connections of central siphon with inside and outside reaction plate.
In the present embodiment; Spring returning device 2 is set to four and be set to be distributed on the circumference between power-transfer clutch and the axle housing 8, and spring returning device 2 is set to include spring 21 and pilot bar 22, and pilot bar 22 is set to connect with trip ring; And trip ring is connected with axle housing; Spring 21 is sleeved on the pilot bar 22, and an end of spring 21 is set to connect with trip ring, and the back-up ring connection connects with axle housing 8 and the other end is set to connect with piston 1.
In the present embodiment, between piston 1 and axle housing 8, be provided with the two seals circle.Leave big gap between piston and the semiaxis, pass through smoothly to make things convenient for oil coolant.
In the present embodiment, the outside face at piston 1 is provided with the hard chrome coating.
Be communicated with piston 1 with hydraulic efficiency pressure system, work as glancing impact, high hydraulic brake fluid gets in the cavity between piston and the axle housing, promotes the piston left lateral.Piston 1 promotes internal fixation disc 3 makes all internal toothed friction plates 4 move with all external tooth friction lining 5 outside reaction plates 6; Thereby through of the profile of tooth engagement of all internal toothed friction plates 4 with semiaxis 9; The friction force of multi-disc internal toothed friction plate 4 and multi-disc external tooth friction lining; All external tooth friction linings 5 mesh with the profile of tooth of central siphon 7, connect as one semiaxis 9 and central siphon 7, realize the braking of drive axle; When brakeless or brake off; Under 2 effects of spring returning device, the piston return unclamps internal toothed friction plate 4 and external tooth friction lining 5; Internal toothed friction plate 4 does not mesh with the profile of tooth of semiaxis 9; External tooth friction lining 5 does not mesh with the profile of tooth of central siphon 7, and semiaxis 9 connects as one with central siphon 7 and is cut off the drive axle normal rotation.
In the present embodiment, because piston 1, internal fixation disc 3, internal toothed friction plate 4, external tooth friction lining 5 and external fixation dish 6 be arranged between central siphon 7 and the axle housing 8, nearer apart with the center-point of semiaxis 9 to the braking force point of action of semiaxis 9; With on the end face that acts on semiaxis 9, compare, reduced torsion at glancing impact to semiaxis 9, prolonged the service life of semiaxis 9; Reduced the volume of drive axle simultaneously, improved the performance of self-propelled vehicle, made the component distribution of drive axle more reasonable; With 10 tons of drive axles is example; The brake plate of former drive axle is of a size of 408mm, and after the technical scheme of use present embodiment, its drg is of a size of 388mm.
In the design of the technical scheme of present embodiment, we have investigated the user who uses drive axle, and the user to loader investigates especially; Because the usage condition of loader need be braked loader constantly, using drum brake and caliper disc glancing impact; Because walking and brake cabin interval short (frequent braking); Drum brake and caliper disc brake response speed are slow, thereby have influenced the walking performance of loader, make the temperature build-up of drum brake and caliper disc braking simultaneously; Reduced the service life of drg; When after using present embodiment on the loader, phenomenons such as temperature rise, locking, pad wear, brake failure are eliminated basically, have improved the walking performance of loader widely.
The present invention has following characteristics:
1, owing to designed spring returning device 2 and power-transfer clutch, through the effect of power-transfer clutch, realize braking, do not re-use friction force as braking force, so braking force is bigger, volume is littler, more install the side.
2, owing to designed internal fixation disc 3, internal toothed friction plate 4, external tooth friction lining 5 and external fixation dish 6, improved their bed knife, increased the friction force between them, so braking effect has been better.
3, owing to designed piston 1, internal fixation disc 3, internal toothed friction plate 4, external tooth friction lining 5 and external fixation dish 6, relatively between motion more steady, kinematic velocity is faster, has improved the being quick on the draw property of braking.
4, braking is reliable; Be wet braking owing to change the dry type braking, all parts are immersed in the oil, and braking heat is taken away by fluid, and all parts are lubricated, and have reduced frictional loss, have prolonged service life, thereby braking is reliable.
5, since braking component in fluid, glancing impact can not produce spark, is more suitable for drive etc. and has using in the place of specific (special) requirements.。
6, because the drg circular distribution, but and friction lining can realize that multi-disc installs, effectively reduced oad, make this structure that back good looking appearance, compact conformation are installed.
In being used for the wet type braking device technical field of drive axle; Every technology contents of spring returning device 2 of being arranged in the cavity that central siphon 7 and axle housing 8 form and being sleeved on the power-transfer clutch that is used on the semiaxis 9 linking together semiaxis 9 and central siphon 7, being arranged between power-transfer clutch and the axle housing 8 and being used to make clutch reset of including is all in protection scope of the present invention.
Claims (5)
1. wet type braking device that is used for drive axle; It is characterized in that: include and be arranged in the cavity that central siphon (7) and axle housing (8) form and be sleeved on the friction clutch that is used on the semiaxis (9) linking together semiaxis (9) and central siphon (7), be arranged between power-transfer clutch and the axle housing (8) and be used to make the spring returning device (2) of clutch reset.
2. the wet type braking device that is used for drive axle according to claim 1; It is characterized in that: spring returning device (2) is set to a plurality of and is set to be distributed on the circumference between power-transfer clutch and the axle housing (8).
3. the wet type braking device that is used for drive axle according to claim 2; It is characterized in that: spring returning device (2) is set to include spring (21) and pilot bar (22); Pilot bar (22) is set to connect with trip ring; And trip ring is connected with axle housing; Spring (21) is sleeved on the pilot bar (22), and an end of spring (21) is set to connect with trip ring, and the back-up ring connection connects with axle housing (8) and the other end is set to connect with piston (1).
4. the wet type braking device that is used for drive axle according to claim 1; It is characterized in that: power-transfer clutch is set to include piston (1), internal fixation disc (3), internal toothed friction plate (4), external tooth friction lining (5) and external fixation dish (6); Central siphon (7) is set to axle housing (8) and connects; At central siphon (7) with axle housing (8) connecting portion is provided with cavity and piston (1), spring returning device (2), internal fixation disc (3), internal toothed friction plate (4), external tooth friction lining (5) and external fixation dish (6) are arranged in the cavity; Piston (1) is arranged in the axle housing (8) and is sleeved on the semiaxis (9); Between piston (1) and axle housing (8), be provided with spring returning device (2); Internal fixation disc (3), internal toothed friction plate (4), external tooth friction lining (5) and external fixation dish (6) are arranged in the cavity of central siphon (7) and are set to respectively connect with semiaxis (9) suit; Internal fixation disc (3) is set to connect with piston (1) contact; External fixation dish (6) is set to connect with central siphon (7) contact, and internal toothed friction plate (4) and external tooth friction lining (5) are arranged between internal fixation disc (3) and the external fixation dish (6), and internal toothed friction plate (4) and external tooth friction lining (5) are set to interval type and distribute; Internal toothed friction plate (4) is set to and engagement type connection of semiaxis (9), and external tooth friction lining (5) is set to and engagement type connection of central siphon (7).
5. the wet type braking device that is used for drive axle according to claim 4; It is characterized in that: the outside face at piston (1) is provided with the hard chrome coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102679357A CN102774367A (en) | 2012-07-31 | 2012-07-31 | Wet type braking device for driving axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102679357A CN102774367A (en) | 2012-07-31 | 2012-07-31 | Wet type braking device for driving axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102774367A true CN102774367A (en) | 2012-11-14 |
Family
ID=47119537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102679357A Pending CN102774367A (en) | 2012-07-31 | 2012-07-31 | Wet type braking device for driving axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102774367A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5088967A (en) * | 1989-01-03 | 1992-02-18 | Magyar Vagon- Es Gepgyar | Planetary assembly with wet disk brake |
| JPH11222109A (en) * | 1998-02-10 | 1999-08-17 | Komatsu Ltd | Braking device |
| CN201062643Y (en) * | 2007-07-31 | 2008-05-21 | 徐州美驰车桥有限公司 | Wet-type multi-disc brake for loader drive axle |
| US20080173515A1 (en) * | 2002-02-13 | 2008-07-24 | White Hydraulics, Inc. | Disk spring hydraulic release brake |
| CN101659252A (en) * | 2009-09-19 | 2010-03-03 | 煤炭科学研究总院太原研究院 | Brake with cooling in driving axle of battery forklift |
| CN201525370U (en) * | 2009-09-19 | 2010-07-14 | 煤炭科学研究总院太原研究院 | Inner brake with cooling effect of drive axle for storage battery forklift truck |
| CN202753929U (en) * | 2012-07-31 | 2013-02-27 | 肥城众力机械有限公司 | Wet braking device for driving axle |
-
2012
- 2012-07-31 CN CN2012102679357A patent/CN102774367A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5088967A (en) * | 1989-01-03 | 1992-02-18 | Magyar Vagon- Es Gepgyar | Planetary assembly with wet disk brake |
| JPH11222109A (en) * | 1998-02-10 | 1999-08-17 | Komatsu Ltd | Braking device |
| US20080173515A1 (en) * | 2002-02-13 | 2008-07-24 | White Hydraulics, Inc. | Disk spring hydraulic release brake |
| CN201062643Y (en) * | 2007-07-31 | 2008-05-21 | 徐州美驰车桥有限公司 | Wet-type multi-disc brake for loader drive axle |
| CN101659252A (en) * | 2009-09-19 | 2010-03-03 | 煤炭科学研究总院太原研究院 | Brake with cooling in driving axle of battery forklift |
| CN201525370U (en) * | 2009-09-19 | 2010-07-14 | 煤炭科学研究总院太原研究院 | Inner brake with cooling effect of drive axle for storage battery forklift truck |
| CN202753929U (en) * | 2012-07-31 | 2013-02-27 | 肥城众力机械有限公司 | Wet braking device for driving axle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| PB01 | Publication | ||
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Application publication date: 20121114 |