CN108832796B

CN108832796B - Magnetic speed reducer for vehicle speed reduction

Info

Publication number: CN108832796B
Application number: CN201810595314.9A
Authority: CN
Inventors: 邵万珍; 吴岳; 刘巍; 卢洪超; 郭超
Original assignee: Beijing Wonderroad Magnesium Technology Co Ltd
Current assignee: Beijing Wonderroad Magnesium Technology Co Ltd
Priority date: 2018-06-11
Filing date: 2018-06-11
Publication date: 2020-06-05
Anticipated expiration: 2038-06-11
Also published as: CN108832796A

Abstract

The utility model provides a magnetic force reduction gear is used in vehicle speed reduction, the copper disk body is equipped with the copper dish, and the copper disk body is connected into an organic whole by connector and stake body and is fastened on the rim with the bolt, and the magnet of circumference direction equipartition is just kept away from the copper disk face to install and separate the magnetic disk in the internal embedding of magnetic disk, and 2 individual push rod motors support respectively to be fixed on installing the push rod motor support on the axle and its push rod symmetry is connected with the magnetic disk body and promotes the axial reciprocating motion of magnetic disk body. When braking, the pressure pump of the vehicle water tank is started to provide cooled and pressurized water, the cooled and pressurized water enters the cooling water pipe through the water inlet pipeline, the water inlet hole and the water pipe joint, the heat generated by the magnetic speed reducer is taken away to enable the water temperature to rise, the hot water flows back to the vehicle water tank through the water return pipe joint, the water return hole and the water return pipeline to be cooled, and the push rod motor pushes the magnetic disc body to enable the magnetic disc to be close to the copper disc, so that the rim is decelerated and braked through the maximum magnetic force generated by the minimum magnetic. The invention has the advantages of simple structure, no pollution, convenient operation and large braking torque.

Description

Magnetic speed reducer for vehicle speed reduction

Technical Field

The invention mainly relates to a magnetic speed reducer, in particular to a magnetic speed reducer for vehicle braking, and belongs to the technical field of magnetic transmission.

Background

In order to improve the running safety performance of a heavy vehicle and the running average speed and the working reliability of a braking system, the vehicle is often provided with an auxiliary braking system to realize deceleration braking at a high speed, and a hydraulic retarder is one of main elements for realizing the auxiliary braking. In foreign countries, hydraulic retarders have been widely used. In particular, in mountainous and hilly areas such as northern europe, western america, japan and the like, many buses, engineering vehicles and heavy transport vehicles are equipped with hydraulic retarders, and germany ZF corporation, VOITH corporation, u.s.a. general automobile corporation and the like have already formed a whole set of advanced technology and experience in designing and developing hydraulic retarders, and are leading to the world.

With the rapid development of economy in recent years, demands for a retarder for braking a vehicle are extremely urgent and performance requirements are increasing at home and abroad. However, the hydraulic retarder has the following application defects: 1. the oil liquid for transmitting power works at a high temperature state for a long time, is easy to deteriorate and age, and has large consumption; 2. the working oil in the braking state has overhigh heating temperature and is easy to vaporize, so a large cooling system is needed; 3. high-temperature working liquid is easy to leak and causes environmental pollution.

To the problems in the prior art, a magnetic force reducer for automobile braking is developed and designed, a magnetic force transmission technology is used for automobile braking, the magnetic force transmission torque is large, so that the magnetic force reducer is small in size, a magnet can work at a high temperature, the pressure of a cooling system is reduced, no oil is lost, leakage pollution is caused, and the magnetic force reducer has a good market development prospect.

Disclosure of Invention

The invention aims to develop a novel speed reducer for a vehicle, and overcomes the defects of the traditional vehicle braking.

The technical solution of the invention is realized as follows:

a magnetic retarder for vehicle deceleration comprises a cooling system, a rim and a magnetic retarder, and is characterized in that the left rim and the right rim of the rim are fastened together by bolts; the magnetic force reducer comprises an end cover, a water return hole plug, a water inlet hole plug, a bearing II, a push rod motor support, a push rod motor, a support body, a guide spline, an axle, a bearing I, a connector, a magnetic disc body, a magnetic separation disc and a magnet, a copper disc, a radiating fin and a copper disc body, wherein the copper disc is fixedly arranged on the inner surface of the copper disc body, the radiating fin is arranged on the outer surface of the copper disc body, the copper disc body is connected with the support body into a whole by the connector and then is fastened on a rim by a bolt, two ends of the integrated part are respectively supported on the axle through the bearing I and the bearing II, the bearing II is tightly pressed by the end cover, the magnet uniformly distributed along the circumferential direction is embedded in the magnetic disc body, the magnetic separation disc is arranged far away from the copper disc surface, the magnetic disc body is arranged on the axle through the guide spline, the magnetic disc body axially, the push rod of the push rod motor is symmetrically connected with the magnetic disc body and pushes the magnetic disc body to axially reciprocate, when braking, when the motor in the push rod motor rotates forwards and pushes the magnetic disc body through the push rod, the magnet is stopped when being close to the copper disc and kept at the interval of transmitting the maximum magnetic force, the minimum magnetic gap is positioned by the axle shoulder of the vehicle and the motor is controlled to stop rotating, when the vehicle is not braked, the motor in the push rod motor rotates reversely, the magnetic disc body is pulled by the push rod to enable the magnet to be far away from the copper disc and stop when the magnet is kept at a safe interval incapable of transmitting magnetic force, the motor is controlled to stop rotating by setting a safe distance, a plurality of circles of cooling water pipes are arranged in the space around the axle, the push rod motor bracket and the push rod motor, a water inlet hole and a water return hole are drilled in the axle, the axle is also provided with a water inlet pipe joint and a water return pipe joint which are respectively connected with the water inlet hole and the water return hole and communicated with the cooling water pipe; the cooling system consists of a vehicle water tank, a water inlet pipeline, a water inlet hole, a water return pipeline, a water return hole, a water return pipe joint, a cooling water pipe and a water inlet pipe joint, when the vehicle is braked, a pressure pump of the vehicle water tank is started to provide cooled water with pressure, the water inlet pipeline enters the cooling water pipe through the water inlet hole and the water inlet pipe joint to flow, the heat generated by the magnetic speed reducer is taken away to enable the water temperature to rise, hot water enters the water return hole through the water return pipe joint and then flows back to the vehicle water tank through the water return pipeline, the vehicle is cooled by the self-carried cooling system, and when the vehicle is not braked, the; during braking, the maximum magnetic force generated by the magnets and the copper disc at the minimum magnetic gap enables the rim to brake in a deceleration mode.

The magnetic force speed reducer is used for all rail-bound and trackless vehicles which run by rotating wheels, the cooling system also comprises air cooling, and the push rod motor is replaced by a reversing hydraulic cylinder.

Compared with the prior art, the invention has the advantages that:

1. the magnetic transmission technology is used for vehicle braking, and the magnetic transmission torque is large, so that the size of the magnetic speed reducer is small;

2. the magnet can work at a higher temperature, so that the pressure of a cooling system is reduced;

3. compared with hydraulic transmission, the hydraulic transmission has no oil loss and oil leakage pollution.

Drawings

The invention shares figure 1.

FIG. 1 is a schematic diagram of the present invention.

In the figure, 1, a cooling system, 11, a vehicle water tank, 12, a water inlet pipeline, 13, a water inlet hole, 14, a water return pipeline, 15, a water return hole, 16, a water return pipe joint, 17, a cooling water pipe, 18, a water inlet pipe joint, 2, a wheel rim, 3, a magnetic speed reducer, 31, an end cover, 32, a water return hole plug, 33, a water inlet hole plug, 34, a bearing II, 35, a push rod motor bracket, 36, a push rod motor, 37, a bracket body, 38, a guide spline, 39, an axle, 310, a bearing I, 311, a connecting body, 312, a magnetic disc body, 313, a magnetic isolation disc, 314, a magnet, 315, a copper disc, 316, a cooling fin, 317 and a copper disc body.

Detailed Description

The magnetic retarder for decelerating the vehicle as shown in fig. 1 comprises a cooling system 1, a rim 2 and a magnetic retarder 3, and is characterized in that the left rim and the right rim of the rim 2 are fastened together by bolts; the magnetic force reducer 3 comprises an end cover 31, a water return hole plug 32, a water inlet hole plug 33, a bearing II 34, a push rod motor support 35, a push rod motor 36, a support body 37, a guide spline 38, an axle 39, a bearing I310, a connecting body 311, a disk body 312, a magnetic isolation disk 313, a magnet 314, a copper disk 315, a radiating fin 316 and a copper disk body 317, wherein the copper disk 315 is fixedly arranged on the inner surface of the copper disk body 317, the radiating fin 316 is arranged on the outer surface of the copper disk body, the copper disk body 317 is connected with the support body 37 into a whole through the connecting body 311 and then is fastened on the wheel rim 2 through bolts, two ends of the integrated part are respectively supported on the axle 39 through the bearing I310 and the bearing II 34, the bearing II 34 is tightly pressed by the end cover 31, the magnet 314 uniformly distributed along the circumferential direction is embedded in the disk body 312, the magnetic isolation disk 313 is arranged on the surface far away from the copper disk 315, the disk body, a pair of push rod motor brackets 35 are symmetrically fastened on an

axle

39, 2 push rod motors 36 are respectively supported and fixed on the push rod motor brackets 35, push rods of the push rod motors are symmetrically connected with a magnetic disk body 312 and push the magnetic disk body 312 to axially reciprocate, when braking is performed, the motor in the push rod motor 36 positively rotates to push the magnetic disk body 312 through the push rod so that a magnet 314 is close to a copper disk 315 and stops when keeping a distance for transmitting maximum magnetic force, a minimum magnetic gap is positioned by a shaft shoulder of the axle 39 and the motor is controlled to stop rotating, when braking is not performed, the motor in the push rod motor 36 reversely rotates to pull the magnetic disk body 312 through the push rod so that the magnet 314 is far away from the copper disk 315 and stops when keeping a safe distance for transmitting no magnetic force, the motor is controlled to stop rotating by setting a safe distance, a plurality of circles of cooling water pipes 17 are further arranged around the space among the axle 39, the push rod motor brackets 35 and, the axle 39 is also provided with a water inlet pipe joint 18 and a water return pipe joint 16 which are respectively connected with the water inlet hole 13 and the water return hole 15 and communicated with the cooling water pipe 17; the cooling system 1 is composed of a vehicle water tank 11, a water inlet pipeline 12, a water inlet hole 13, a water return pipeline 14, a water return hole 15, a water return pipe joint 16, a cooling water pipe 17 and a water inlet pipe joint 18, when the vehicle is braked, a pressure pump of the vehicle water tank 11 is started to provide cooled water with pressure, the water enters the cooling water pipe 17 from the water inlet pipeline 12 through the water inlet hole 13 and the water inlet pipe joint 18 to flow, heat generated by the magnetic speed reducer 3 is taken away to enable the water temperature to rise, hot water enters the water return hole 15 through the water return pipe joint 16 and then flows back to the vehicle water tank 11 through the water return pipeline 14 to be cooled by the vehicle self-contained cooling system, and when the vehicle is not braked; the maximum magnetic force generated by the magnets 314 and the copper disk 315 at the minimum magnetic gap during braking causes the rim 2 to brake at a reduced speed.

The magnetic speed reducer 3 is used for all rail-bound and trackless vehicles which run by rotating wheels, the cooling system 1 also comprises air cooling, and the push rod motor is replaced by a reversing hydraulic cylinder.

Claims

1. A magnetic retarder for vehicle deceleration comprises a cooling system (1), a rim (2) and a magnetic retarder (3), and is characterized in that the left rim and the right rim of the rim (2) are fastened together by bolts; the magnetic speed reducer (3) is composed of an end cover (31), a water return hole plug (32), a water inlet hole plug (33), a bearing II (34), a push rod motor support (35), a push rod motor (36), a support body (37), a guide spline (38), an axle (39), a bearing I (310), a connector (311), a disk body (312), a magnetism isolating disk (313), a magnet (314), a copper disk (315), a radiating fin (316) and a copper disk body (317), wherein the copper disk (315) is fixedly installed on the inner surface of the copper disk body (317), the radiating fin (316) is installed outside the copper disk body, the copper disk body (317) is fastened on a rim (2) through bolts after the connector (311) is connected with the support body (37) into a whole, two ends of the integrated component are respectively supported on the axle (39) through the bearing I (310) and the bearing II (34), the bearing II (34) is tightly pressed by the end cover (31), the magnet (314) uniformly distributed in the magnetic disk body (312) in the circumferential The magnetic isolation disc (313), the magnetic disc body (312) is installed on the axle (39) through the guide spline (38), the magnetic disc body (312) axially reciprocates on the axle (39) along the guide spline (38), a pair of push rod motor brackets (35) are symmetrically fastened on the axle (39), 2 push rod motors (36) are respectively supported and fixed on the push rod motor brackets (35), push rods of the push rod motors are symmetrically connected with the magnetic disc body (312) and push the magnetic disc body (312) to axially reciprocate, during braking, the motor in the push rod motor (36) positively rotates to push the magnetic disc body (312) through the push rods so that the magnet (314) is close to the copper disc (315) and stops when the space for transmitting the maximum magnetic force is kept, the minimum magnetic gap is positioned by the axle shoulder of the axle (39) and the motor is controlled to stop rotating, when the brake is not performed, the motor in the push rod motor (36) reversely rotates so that the magnet (314) is far away from the copper disc (315) and is kept at the safe space for transmitting the magnetic force, the motor is controlled to stop rotating by setting a safety distance, a plurality of circles of cooling water pipes (17) are further arranged in the space around the axle (39), the push rod motor support (35) and the push rod motor (36), a water inlet hole (13) and a water return hole (15) are drilled in the axle (39) and are respectively plugged by a water return hole plug (32) and a water inlet hole plug (33), and a water inlet pipe joint (18) and a water return pipe joint (16) which are respectively connected with the water inlet hole (13) and the water return hole (15) and are communicated with the cooling water pipes (17) are further arranged on the peripheral surface of the axle (39); the cooling system (1) consists of a vehicle water tank (11), a water inlet pipeline (12), a water inlet hole (13), a water return pipeline (14), a water return hole (15), a water return pipe joint (16), a cooling water pipe (17) and a water inlet pipe joint (18), when the vehicle is braked, a pressure pump of the vehicle water tank (11) starts to provide cooled water with pressure, the water enters the cooling water pipe (17) through the water inlet hole (13) and the water inlet pipe joint (18) to flow, the heat generated by the magnetic speed reducer (3) is taken away to enable the water temperature to rise, hot water enters the water return hole (15) through the water return pipe joint (16) and then flows back to the vehicle water tank (11) through the water return pipeline (14), the vehicle is cooled by the vehicle self-provided cooling system, and when the vehicle is not braked, the pressure pump of the vehicle water tank (11) is; during braking, the maximum magnetic force generated by the magnets (314) and the copper disc (315) in the minimum magnetic gap enables the rim (2) to brake in a deceleration way.

2. A magnetic retarder for retarding vehicles according to claim 1, further characterized in that the magnetic retarder (3) is used for all track-bound and trackless vehicles that run on rotating wheels.

3. A magnetic retarder for slowing down a vehicle according to claim 1, characterised in that the cooling system (1) also comprises air cooling.

4. A magnetic retarder for retarding vehicles according to claim 1 further characterised in that said push rod motor (36) is replaced by a reversing hydraulic cylinder.