CN215487336U - Anti-lock braking roller hydraulic motor - Google Patents
Anti-lock braking roller hydraulic motor Download PDFInfo
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- CN215487336U CN215487336U CN202122095198.4U CN202122095198U CN215487336U CN 215487336 U CN215487336 U CN 215487336U CN 202122095198 U CN202122095198 U CN 202122095198U CN 215487336 U CN215487336 U CN 215487336U
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Abstract
The utility model discloses an anti-lock brake roller hydraulic motor, which comprises a roller hydraulic motor and an anti-lock brake; the anti-lock brake comprises a brake shell, a first cavity and a second cavity are formed in the brake shell, a friction plate is arranged in the first cavity, a brake shaft is sleeved in the friction plate, a brake piston is arranged in the second cavity, a brake end cover is further arranged at the end part of the brake shell, an elastic piece is abutted between the brake end cover and the brake piston, an isolating ring is further fixed in the second cavity, an oil cavity is formed between the isolating ring and the brake piston, an oil port is formed in the brake shell, and a damping hole for communicating the oil cavity with the first cavity is formed in the brake piston; the roller hydraulic motor is connected with the anti-lock brake in a sealing way, and the brake shaft is coaxially connected with the output shaft of the roller hydraulic motor. The utility model can effectively reduce the impact feeling caused by equipment braking and has the characteristics of stable and reliable braking.
Description
Technical Field
The utility model relates to the technical field of hydraulic power equipment, in particular to an anti-lock braking roller hydraulic motor.
Background
The safety and comfort of mechanical equipment are increasingly taken as the quality consideration criteria of equipment, and especially the safety of equipment is a factor of important consideration for manufacturers and users.
In engineering machinery, for example, during the traveling process of engineering vehicles (such as dump trucks, watering lorries, asphalt pavers, trailers, concrete pumping vehicles, comprehensive road maintenance vehicles and bridge inspection vehicles), when the vehicles stop, sudden braking of the vehicle brake can bring about large impact, and a series of safety problems are caused. In addition, in some vehicle rotation working conditions, when the vehicle continuously works, the inertia impact of the equipment can make an operator tired, and the operation difficulty of the operator is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an anti-lock brake roller hydraulic motor which has the technical characteristics of stable braking and small equipment brake impact feeling.
The purpose of the utility model is mainly realized by the following technical scheme: an anti-lock brake roller hydraulic motor comprises a roller hydraulic motor and an anti-lock brake; the anti-lock brake comprises a brake shell, a first cavity and a second cavity are formed in the brake shell, a friction plate is arranged in the first cavity, a brake shaft is sleeved in the friction plate, a brake piston is arranged in the second cavity, part of the brake piston extends into the first cavity and can be abutted against the side surface of the friction plate, the end part of the shell of the brake is also provided with a brake end cover for sealing the second cavity, an elastic part is abutted between the brake end cover and the brake piston, the elastic part can drive the brake piston to axially translate along the brake shaft, the isolating ring is fixed in the second cavity and is hermetically arranged at the part of the brake piston extending into the first cavity to hermetically isolate the first cavity from the second cavity, a closed oil cavity is formed between the isolating ring and the brake piston, an oil port communicated with the oil cavity is formed in the brake shell, and a damping hole for communicating the oil cavity with the first cavity is formed in the brake piston; the roller hydraulic motor is connected with the anti-lock brake in a sealing mode and seals the first cavity, and the brake shaft extends into the roller hydraulic motor and is coaxially connected with an output shaft of the roller hydraulic motor.
Based on the technical scheme, the elastic piece is a disc spring.
Based on the technical scheme, the friction plate is made of asbestos fiber friction materials.
Based on above technical scheme, the isolating ring is provided with first sealing washer with the part that the brake piston stretches into first cavity, brake piston periphery is provided with the second sealing washer, isolating ring and brake piston pass through first sealing washer, the second sealing washer seals and forms the oil pocket.
Based on the technical scheme, the roller hydraulic motor comprises a motor shell, an oil distribution seat and a stator hermetically connected between the motor shell and the oil distribution seat, wherein a rotor assembly is paired in the stator, a supporting bearing is arranged in the motor shell, an oil distribution disc is arranged in the oil distribution seat, an output shaft is sequentially sleeved in the supporting bearing, the rotor assembly and the oil distribution disc, an anti-lock brake is hermetically connected to the end part of the oil distribution seat, a connecting key is arranged in the rotor assembly, and the output shaft and a brake shaft are connected through the connecting key; the oil distribution base is also provided with a high-pressure oil port which is communicated with the oil distribution disc and the rotor assembly.
Based on above technical scheme, join in marriage the inboard third sealing washer that still is provided with of oil holder, the third sealing washer is sealed to be set up outside the brake shaft in order to keep apart first cavity seal.
Compared with the prior art, the utility model has the following beneficial effects: when the anti-lock brake is used, when equipment is braked, the anti-lock brake needs one process to brake completely, and can brake slowly until the braking is finished, so that the impact feeling caused by the equipment braking can be effectively reduced, the safety and the operation comfort of the equipment are greatly improved, the friction plate can also perform heat dissipation protection, and the friction plate is kept secret, and has the characteristics of stable and reliable braking.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
FIG. 1 is a schematic view of a first configuration of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
FIG. 3 is a schematic view of a third construction of the present invention;
the reference numerals in the drawings denote:
1. a roller hydraulic motor; 2. an anti-lock brake; 3. a brake housing; 4. a first cavity; 5. a second cavity; 6. a friction plate; 7. a brake shaft; 8. a brake piston; 9. a brake end cap; 10. an elastic member; 11. an isolating ring; 12. an oil chamber; 13. an oil port; 14. a damping hole; 15. an output shaft; 16. a first seal ring; 17. a second seal ring; 18. a motor housing; 19. an oil distribution base; 20. a stator; 21. a rotor assembly; 22. a support bearing; 23. an oil distribution disc; 24. a high-pressure oil port; 25. and a third sealing ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
As shown in fig. 1 to 2, the present embodiment provides an anti-lock brake roller hydraulic motor including a roller hydraulic motor 1 and an anti-lock brake 2; the anti-lock brake 2 comprises a brake shell 3, a first cavity 4 and a second cavity 5 are formed in the brake shell 3, a friction plate 6 is installed in the first cavity 4, a brake shaft 7 is sleeved in the friction plate 6, a brake piston 8 is installed in the second cavity 5, the brake piston 8 can partially extend into the first cavity 4 and can be abutted against the side face of the friction plate 6, a brake end cover 9 for sealing the second cavity 5 is further arranged at the end part of the brake shell 3, an elastic part 10 is abutted between the brake end cover 9 and the brake piston 8, the elastic part 10 can drive the brake piston 8 to axially translate along the brake shaft 7, a separating ring 11 is further fixed in the second cavity 5, the separating ring 11 is hermetically arranged at the part of the brake piston 8 extending into the first cavity 4 and hermetically separates the first cavity 4 from the second cavity 5, and a closed oil cavity 12 is formed between the separating ring 11 and the brake piston 8, the brake shell 3 is provided with an oil port 13 communicated with the oil cavity 12, and the brake piston 8 is provided with a damping hole 14 for communicating the oil cavity 12 with the first cavity 4; the roller hydraulic motor 1 is connected with the anti-lock brake 3 in a sealing mode and seals the first cavity 4, and the brake shaft 7 extends into the roller hydraulic motor 1 and is connected with the output shaft 15 of the roller hydraulic motor 1 in a coaxial mode.
When the anti-lock brake roller hydraulic motor is used, the roller hydraulic motor 1 is in transmission connection with equipment through an output shaft 15, the roller hydraulic motor 1 drives the output shaft 15 and the brake shaft 7 to rotate through external high-pressure hydraulic oil, the high-pressure hydraulic oil enters an oil cavity 12 through an oil port 13 while the output shaft 15 and the brake shaft 7 rotate, the brake piston 8 is pushed to move rightwards to compress the elastic part 10, the brake piston 8 is not in contact with a separation part at the moment, the anti-lock brake 3 is integrally in an unlocking state, the roller hydraulic motor 1 is in a normal working state, part of the high-pressure hydraulic oil enters the first cavity 4 through the oil cavity 12 and the damping holes 14, lubrication and heat dissipation are carried out on a friction plate 6, the temperature of the friction plate is ensured not to be too high, and the friction plate can be well protected when the brake shaft 7 rotates and the anti-lock brake 3 brakes. When the equipment needs to be braked, the oil port 13 is externally connected with high-pressure hydraulic oil to cancel oil supply, so that the oil port 13 has no pressure instantaneously, at the moment, the elastic piece 10 releases elastic force due to no pressure action to push the brake piston 8 to move leftwards, because the hydraulic oil which does not flow out from the oil port 13 exists in the oil chamber 12 and the first cavity 4, the elastic member 10 can only move leftwards slowly, the hydraulic oil in the first cavity 4 is extruded to flow back to the oil chamber 12 through the damping hole 14 and then flows out from the oil chamber 12 to the outside of the oil port 13, therefore, based on the hydraulic oil pressure in the first cavity 4, the brake piston 8 moves leftwards and needs to be contacted with the friction plate 6 only in the releasing process of the hydraulic oil, and the brake piston 8 can be abutted against the friction plate 6 to perform complete braking after the contact, namely, the time that the brake piston 8 presses the friction plate 6 is delayed, and after the pressure of the first cavity 4 is completely released, reliable braking is carried out.
Therefore, the anti-lock brake roller hydraulic motor can realize unlocking and slow braking of the anti-lock brake 3 based on the design of the first cavity 4, the oil cavity 12 and the damping hole 14, can carry out heat dissipation protection on the friction plate 6 in the whole process, is safe in braking, can well reduce impact feeling and discomfort feeling brought to equipment or operators by braking through time control in the braking process, is more stable and reliable in braking, can protect the equipment and the operators, and can reduce the problem of braking safety.
In order to ensure that the translation effect of the brake piston 8 is more accurate and timely, the elastic member 10 of this embodiment preferably employs a disc spring, which has the characteristics of short stroke, heavy load, small required space, and strong buffering and vibration absorbing capability, can bear large load with small deformation, is suitable for the requirements of small axial space requirement and large elasticity in the anti-lock brake 3, and can ensure the thrust direction to the brake piston 8 and ensure that the brake piston 8 can be in uniform contact with the friction plate 6.
As an optimized structure, the above friction plates 6 can be made of asbestos fiber friction material, so that the friction resistance and the service life of the anti-lock brake roller hydraulic motor can be improved, and the service life of the whole anti-lock brake roller hydraulic motor can be prolonged.
Specifically, the oil chamber 12 is located in the second cavity 5, and may be formed by: the isolating ring 11 and the part of the brake piston 8 extending into the first cavity 4 are provided with a first sealing ring 16, the circumferential surface of the brake piston 8 is provided with a second sealing ring 17, and the isolating ring 11 and the brake piston 8 are sealed by the first sealing ring 16 and the second sealing ring 17 to form the oil chamber 12. Therefore, the brake piston 8 can be sealed through the second sealing ring 17 in the moving process, the sealing performance and the independence of the oil cavity 12 are guaranteed, the oil cavity 12 can also be subjected to space change in the moving process of the brake piston 8, the overall braking work of the anti-lock brake 3 is not affected, and the mode has the advantages of being simple in structure, low in cost and convenient to maintain.
Referring to fig. 3, the roller hydraulic motor 1 includes a motor housing 18, an oil distribution base 19 and a stator 20 hermetically connected therebetween, a rotor assembly 21 is paired inside the stator 20, a support bearing 22 is disposed inside the motor housing 18, an oil distribution disc 23 is disposed inside the oil distribution base 19, the output shaft 15 is sequentially sleeved inside the support bearing 22, the rotor assembly 21 and the oil distribution disc 23, the anti-lock brake 2 is hermetically connected to an end portion of the oil distribution base 19, a connection key is disposed inside the rotor assembly 21, and the output shaft 15 and the brake shaft 7 are connected through the connection key; the oil distribution base 19 is further provided with a high-pressure oil port 24, and the high-pressure oil port 24 is communicated with the oil distribution disc 23 and the rotor assembly 21.
When the roller hydraulic motor 1 works, high-pressure hydraulic oil is introduced into the oil distribution disc 23 and the rotor assembly 21 through the high-pressure oil port 24, the rotor assembly 21 is pushed to rotate through the hydraulic oil and continuously operates under the limit of the stator 20 track, and the output shaft 15 can drive the equipment to work in the operation process.
It should be noted that the motor housing 18, the oil distribution base 19, the stator 20, the rotor assembly 21, the support bearing 22, the oil distribution disc 23, and the like are already existing in the existing motor structure, and the specific structure and function thereof will not be further described in this embodiment.
As a structural supplement, a third sealing ring 25 may be disposed inside the oil distribution seat 19, and the third sealing ring 25 is disposed outside the brake shaft 7 to seal and isolate the first cavity 4. Thereby, the roller hydraulic motor 1 can be isolated by the third sealing ring 25, and the 4 sealing effects of the first cavity are ensured.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. An anti-lock brake roller hydraulic motor is characterized by comprising a roller hydraulic motor and an anti-lock brake;
the anti-lock brake comprises a brake shell, a first cavity and a second cavity are formed in the brake shell, a friction plate is arranged in the first cavity, a brake shaft is sleeved in the friction plate, a brake piston is arranged in the second cavity, part of the brake piston extends into the first cavity and can be abutted against the side surface of the friction plate, the end part of the shell of the brake is also provided with a brake end cover for sealing the second cavity, an elastic part is abutted between the brake end cover and the brake piston, the elastic part can drive the brake piston to axially translate along the brake shaft, the isolating ring is fixed in the second cavity and is hermetically arranged at the part of the brake piston extending into the first cavity to hermetically isolate the first cavity from the second cavity, a closed oil cavity is formed between the isolating ring and the brake piston, an oil port communicated with the oil cavity is formed in the brake shell, and a damping hole for communicating the oil cavity with the first cavity is formed in the brake piston;
the roller hydraulic motor is connected with the anti-lock brake in a sealing mode and seals the first cavity, and the brake shaft extends into the roller hydraulic motor and is coaxially connected with an output shaft of the roller hydraulic motor.
2. The anti-lock brake roller hydraulic motor of claim 1, wherein the resilient member is a disc spring.
3. Anti-lock brake roller hydraulic motor, according to claim 1, characterized in that said friction plates are made of asbestos fiber friction material.
4. The antilock brake roller hydraulic motor as set forth in claim 1, wherein said spacer ring and said portion of said brake piston extending into said first cavity are provided with a first seal ring, said brake piston is provided with a second seal ring on a circumferential surface thereof, and said oil chamber is formed by said spacer ring and said brake piston being closed by said first seal ring and said second seal ring.
5. The anti-lock brake roller hydraulic motor according to claim 1, wherein the roller hydraulic motor comprises a motor housing, an oil distribution base and a stator hermetically connected therebetween, a rotor assembly is paired inside the stator, a support bearing is arranged inside the motor housing, an oil distribution disc is arranged inside the oil distribution base, the output shaft is sequentially sleeved inside the support bearing, the rotor assembly and the oil distribution disc, the anti-lock brake is hermetically connected to an end portion of the oil distribution base, a connection key is arranged inside the rotor assembly, and the output shaft and the brake shaft are connected through the connection key;
the oil distribution base is also provided with a high-pressure oil port which is communicated with the oil distribution disc and the rotor assembly.
6. The antilock brake roller hydraulic motor as set forth in claim 5, wherein a third seal ring is further disposed inside said oil distribution seat, said third seal ring being sealingly disposed outside said brake shaft to sealingly isolate said first cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122095198.4U CN215487336U (en) | 2021-09-01 | 2021-09-01 | Anti-lock braking roller hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122095198.4U CN215487336U (en) | 2021-09-01 | 2021-09-01 | Anti-lock braking roller hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215487336U true CN215487336U (en) | 2022-01-11 |
Family
ID=79766970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122095198.4U Active CN215487336U (en) | 2021-09-01 | 2021-09-01 | Anti-lock braking roller hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215487336U (en) |
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2021
- 2021-09-01 CN CN202122095198.4U patent/CN215487336U/en active Active
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