WO2008138203A1 - Frein hydraulique - Google Patents

Frein hydraulique Download PDF

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Publication number
WO2008138203A1
WO2008138203A1 PCT/CN2008/000655 CN2008000655W WO2008138203A1 WO 2008138203 A1 WO2008138203 A1 WO 2008138203A1 CN 2008000655 W CN2008000655 W CN 2008000655W WO 2008138203 A1 WO2008138203 A1 WO 2008138203A1
Authority
WO
WIPO (PCT)
Prior art keywords
brake
hydraulic
housing
rear axle
piston
Prior art date
Application number
PCT/CN2008/000655
Other languages
English (en)
Chinese (zh)
Inventor
Henglin Xiao
Original Assignee
Wuxi Kipor Power Co., Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Kipor Power Co., Ltd filed Critical Wuxi Kipor Power Co., Ltd
Publication of WO2008138203A1 publication Critical patent/WO2008138203A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
    • F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
    • F16D55/36—Brakes with a plurality of rotating discs all lying side by side
    • F16D55/40—Brakes with a plurality of rotating discs all lying side by side actuated by a fluid-pressure device arranged in or one the brake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • F16D65/186—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes with full-face force-applying member, e.g. annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure

Definitions

  • This invention relates to a hydraulic brake, and more particularly to a wheel loader row: a walking or working vehicle that provides a braking force to a drive through a drive shaft, and is a field of engineering machinery.
  • the transmission structure of a work vehicle is to provide a wet multi-plate friction brake on the axle, and the annular friction plate of the friction brake is arranged on the annular pressure plate.
  • the controller and the annular platen plate an annular space is formed on the outer side in the radial direction of the friction plate, and an oil passage that communicates the annular space and the oil space in the radial direction of the friction plate is formed.
  • the brake is mounted on the axle and disposed in the differential case, and the manufacturing of the component is high in complexity and expensive in manufacturing; since the brake is disposed in the differential case on the axle, it is damaged. It is not easy to repair. It is necessary to remove the hydraulic motor, remove the drive shaft, remove the hydraulic motor reducer, and finally remove the differential of the transmission bridge to perform maintenance.
  • the general brake maintenance is not convenient, and the maintenance cost is high. Professional maintenance personnel are also required to carry out. In addition, this brake function is single.
  • An object of the present invention is to overcome the above-mentioned deficiencies and to provide a hydraulic brake which can effectively provide a braking force to a driving device and has an automatic parking function when parking, which has high braking efficiency, low manufacturing cost, and convenient maintenance.
  • the invention mainly adopts a brake seat upper cover at the front end of the brake base to form a brake housing, and an upper piston, a lower piston, a brake inner disc and a brake outer disc are arranged in the housing in a staggered manner in the housing.
  • At least two compression springs are disposed under the brake inner lower piston.
  • the brake inner disc and the brake outer disc are respectively used in at least two or more sheets.
  • An oil inlet joint is disposed on an outer diameter of the brake seat upper cover and the brake seat.
  • the invention has the advantages of simple structure, compactness and reasonableness; when driving with a wheel loader driving or working vehicle
  • the drive shaft can be supplied with braking force through the drive shaft, and the parking brake function can be provided; the brake power is high, the manufacturing cost is low, and the maintenance is convenient.
  • Figure 1 is a diagram showing the state of use of the present invention.
  • FIG. 2 is a schematic structural view of the present invention.
  • variable hydraulic motor or quantitative hydraulic motor 2. hydraulic motor reduction gear upper cover, 3. hydraulic motor reduction gear base 4. Brake base, 5. Brake seat cover, 6. Bolt, 7. Rear axle cone drive gear shaft, 8. Bolt, 9. Wheel axle, 10. Wheel axle housing, 11. Planetary carrier, 12. Internal gear, 13. differential output shaft, 14. rear axle differential case, 15. main reduction gearbox, 16. planetary gear, 17. bolt, 18. bolt, 19. brake inner disc, 20. brake outer disc 21. Upper piston, 22. Lower piston, 23. Hydraulic motor drive gear, 24. Compression spring, 25. Rear axle conical driven gear, 26. Intermediate gear, 27. Passive gear, 28. Rear axle cone drive gear, 29 . Transmission shaft rear axle connection, 30. Inlet and outlet joints, 31. Venting joints.
  • the present invention adopts a brake seat upper cover 5 at the front end of the brake base 4, and is connected and fixed by bolts 6 to form a brake housing.
  • the upper piston 21, the plurality of brake inner discs 19, and the brake outer disc 20 are sequentially installed in the housing. , lower piston 22.
  • the brake inner disc 19 and the brake outer disc 20 are alternately arranged in the housing.
  • the center of the brake inner disk 19 is provided with a hole and the outer diameter of the rear axle cone drive gear shaft is splined, the brake inner disk 19 can slide freely along the axial direction of the rear axle cone drive gear shaft, and the brake inner disk 19 can rotate freely in the brake housing;
  • the center of the outer disc 20 is provided with a hole for the rear axle cone drive gear shaft to pass freely, and the outer circumference is provided with a groove to cooperate with the inner groove of the housing and can slide freely along the axial direction of the cone drive gear shaft.
  • the brake inner disc 19 and the brake outer disc 20 are respectively used in at least two or more sheets, and are driven or disengaged by hydraulic oil.
  • Two or more compression springs 24 that abut the lower piston 22 are evenly disposed between the main reduction gear body 15 and the brake base 4, and the inlet and outlet oils are provided on the outer diameters of the brake seat upper cover 5 and the brake seat 4.
  • the joint 30 can interlock the inner cavity of the upper piston 21 and the lower piston 22.
  • a venting joint 31 is provided on the outer diameter of the brake seat upper cover 5 for releasing air in the brake.
  • the brake inner disc 19 is axially freely mounted on the drive gear shaft 7 and can rotate synchronously with the drive gear shaft 7, and the hydraulic brake outer disc 20 can be freely moved axially along the drive gear shaft 7 and can be coupled through the chute.
  • the wheel loader is mainly composed of a variable hydraulic motor or a quantitative hydraulic motor 1, a front axle assembly, a rear axle assembly, a hydraulic motor reduction gearbox assembly, etc., and the rear axle cone drive gear shaft 7 is installed in the hydraulic motor reduction gearbox assembly, and is in front.
  • the rear axle assembly is equipped with wheels, and the power provided by the hydraulic motor is used to carry the load.
  • the rear axle assembly is fixed to the wheel axle housing 10 by bolts 18 on the left and right sides of the main reduction gear body 15.
  • the front end of the main reduction gearbox 15 is connected to the hydraulic motor reduction gearbox assembly and fixed by bolts 8.
  • the hydraulic motor reducer assembly consists of the hydraulic motor reducer cover. 2.
  • the hydraulic motor reducer base 3 consists of a box and is fixed by bolts 17.
  • variable hydraulic motor or the quantitative hydraulic motor 1 is installed on the end face of the hydraulic motor reduction gear box base 3, and the hydraulic motor drive gear 23 is driven through the front end of the motor output shaft to drive the intermediate gear 26, and the driven gear 27 is driven; the driven gear 27 drives the rear axle cone drive gear shaft 7;
  • the rear axle cone drive gear shaft 7-end is mounted with the rear axle cone drive gear 28, and meshes with the rear axle cone driven gear 25, and the rear axle cone driven gear 25 is mounted on the rear axle differential case 14 and is mounted on the main In the middle of the reduction case 15, a differential bevel gear pair is arranged in the middle of the rear axle differential case 14, and a differential output shaft 13 is provided, and the internal gear 12 of the differential output shaft 13 end is meshed and mounted on the planetary gear
  • the carrier 11 has a planetary gear 16, the planetary gear 16 drives the wheel axle 9 mounted in the wheel axle housing 10; the other end of the rear axle tapered drive gear shaft 7 is coupled to the transmission axle rear axle connector 29.
  • a hydraulic brake is disposed on the rear axle cone
  • the hydraulic oil pump rotates with the engine to generate pressurized hydraulic oil in the hydraulic circuit.
  • the hydraulic oil on one of the hydraulic lines enters the brake base 4 through the inlet and outlet oil joints 30, forcing the upper piston 21 to Move up to reduce the height of the compression spring, so that the inner disc of the brake is separated from the outside with a certain gap, no frictional resistance is generated, the rear axle cone drive gear 7 is free to rotate, the vehicle can walk; when braking is required, the foot is stepped
  • the brake pedal the hydraulic oil of the brake pump enters from the brake base cover 5 through the inlet and outlet oil joint 30, forcing the lower piston 22 to move upward, so that the brake The inner disc 19 is engaged with the outer disc 20 of the brake to generate frictional resistance.
  • the braking force is generated on the rear axle cone drive shaft 7, and the vehicle stops walking.
  • the hydraulic oil of the brake pump passes through the inlet and outlet oil joint 30.
  • the pressure is released from the brake base cover 5, and the brake inner disk 19 is separated from the brake outer disk 20, and the vehicle can travel again.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

Cette invention concerne un frein hydraulique utilisé dans des supports de charge à roulettes ou des véhicules de travail, lequel frein hydraulique est conçu pour fournir une puissance de freinage à un dispositif de commande par l'intermédiaire d'un arbre de commande. Le frein hydraulique comprend un logement constitué d'une base de frein et d'une enveloppe de frein. Un piston supérieur et un piston inférieur sont ménagés dans le logement. Les plaques de frein intérieures et les plaques de frein extérieures qui s'écartent alternativement les unes des autres sont placées entre le piston supérieur et le piston inférieur. Le piston supérieur et le piston inférieur actionnés par la pression dans la conduite hydraulique commandent l'entrée en contact et le dégagement des plaques de frein intérieures et des plaques de frein extérieures, ce qui permet d'obtenir trois modes parmi lesquels, le freinage de stationnement, le déplacement et le freinage pendant le déplacement.
PCT/CN2008/000655 2007-05-14 2008-04-01 Frein hydraulique WO2008138203A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100225791A CN101054084A (zh) 2007-05-14 2007-05-14 一种液压制动器
CN200710022579.1 2007-05-14

Publications (1)

Publication Number Publication Date
WO2008138203A1 true WO2008138203A1 (fr) 2008-11-20

Family

ID=38794185

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/000655 WO2008138203A1 (fr) 2007-05-14 2008-04-01 Frein hydraulique

Country Status (2)

Country Link
CN (1) CN101054084A (fr)
WO (1) WO2008138203A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101054084A (zh) * 2007-05-14 2007-10-17 无锡开普动力有限公司 一种液压制动器
CN102537142A (zh) * 2010-12-23 2012-07-04 泸州邦立减速机有限责任公司 一种用于行车制动的行走减速机制动器

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770085A (en) * 1972-01-28 1973-11-06 Gen Motors Corp Vehicle clutch and brake
DE3935114A1 (de) * 1988-11-12 1990-05-17 Zahnradfabrik Friedrichshafen Radkopf fuer in oel laufende scheibenbremsen
US6582339B2 (en) * 2000-06-22 2003-06-24 Lohmann & Stolterfoht Gmbh Wheel drive with integrated dynamic service brake
CN1522207A (zh) * 2001-09-11 2004-08-18 韩胜宇 车轮传动系统
CN101049800A (zh) * 2007-05-14 2007-10-10 无锡开普动力有限公司 一种装载机的后桥驱动装置
CN101054084A (zh) * 2007-05-14 2007-10-17 无锡开普动力有限公司 一种液压制动器
CN101054059A (zh) * 2007-05-14 2007-10-17 无锡开普动力有限公司 一种装载机的行走制动装置
CN201041206Y (zh) * 2007-05-14 2008-03-26 无锡开普动力有限公司 一种液压制动器
CN201040487Y (zh) * 2007-05-14 2008-03-26 无锡开普动力有限公司 一种装载机的后桥驱动装置
CN201040523Y (zh) * 2007-05-14 2008-03-26 无锡开普动力有限公司 一种装载机的行走制动装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770085A (en) * 1972-01-28 1973-11-06 Gen Motors Corp Vehicle clutch and brake
DE3935114A1 (de) * 1988-11-12 1990-05-17 Zahnradfabrik Friedrichshafen Radkopf fuer in oel laufende scheibenbremsen
US6582339B2 (en) * 2000-06-22 2003-06-24 Lohmann & Stolterfoht Gmbh Wheel drive with integrated dynamic service brake
CN1522207A (zh) * 2001-09-11 2004-08-18 韩胜宇 车轮传动系统
CN101049800A (zh) * 2007-05-14 2007-10-10 无锡开普动力有限公司 一种装载机的后桥驱动装置
CN101054084A (zh) * 2007-05-14 2007-10-17 无锡开普动力有限公司 一种液压制动器
CN101054059A (zh) * 2007-05-14 2007-10-17 无锡开普动力有限公司 一种装载机的行走制动装置
CN201041206Y (zh) * 2007-05-14 2008-03-26 无锡开普动力有限公司 一种液压制动器
CN201040487Y (zh) * 2007-05-14 2008-03-26 无锡开普动力有限公司 一种装载机的后桥驱动装置
CN201040523Y (zh) * 2007-05-14 2008-03-26 无锡开普动力有限公司 一种装载机的行走制动装置

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Publication number Publication date
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