CN108775354B - Magnetic retarder for braking vehicle mounted on driving shaft - Google Patents
Magnetic retarder for braking vehicle mounted on driving shaft Download PDFInfo
- Publication number
- CN108775354B CN108775354B CN201810594007.9A CN201810594007A CN108775354B CN 108775354 B CN108775354 B CN 108775354B CN 201810594007 A CN201810594007 A CN 201810594007A CN 108775354 B CN108775354 B CN 108775354B
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- Prior art keywords
- heat exchanger
- water
- magnetic
- vehicle
- copper disc
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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
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
- F16D63/002—Brakes with direct electrical or electro-magnetic actuation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
-
- 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
- F16D65/78—Features relating to cooling
-
- 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
- F16D65/78—Features relating to cooling
- F16D2065/783—Features relating to cooling cooling control or adjustment
-
- 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
- F16D65/78—Features relating to cooling
- F16D2065/787—Pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Braking Arrangements (AREA)
Abstract
A magnetic force reducer for vehicle braking mounted on a driving shaft is characterized in that magnets which are uniformly distributed in the circumferential direction are embedded in a magnetic disc body which is fixed on the shaft, a copper disc is mounted on the inner surface of the copper disc body, the outer surface of the copper disc body is rigidly connected with piston rods of a pair of reversing hydraulic cylinders which are symmetrically mounted on a body frame I, a pair of convex blocks which are symmetrically extended out in the radial direction are respectively inserted into a connecting body sliding chute to axially slide in a reciprocating manner, the distance between the copper disc and the magnets is changed by pushing and pulling the reversible piston rods of a hydraulic oil inlet and outlet, and when the copper disc and the magnets are braked, magnetic force is generated to decelerate and brake wheels, a vehicle water tank pump is started, cooling water is supplied to a vehicle water tank through a heat exchanger to absorb heat and return to the vehicle water tank, and a pressure pump is started, and pump; when the automobile is not braked, the copper disc and the magnet are in a safe distance, no magnetic force is generated, and the automobile water tank pump and the pressure pump are closed. The invention has the advantages of no pollution and large braking torque.
Description
Technical Field
The invention mainly relates to a magnetic speed reducer, in particular to a magnetic speed reducer for vehicle braking, which is arranged on a driving shaft, 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 problem that exists among the above-mentioned prior art, we developed and designed the magnetic force reduction gear for the vehicle braking that is used for installing in the drive shaft, was used for the vehicle braking with magnetic transmission technology, and magnetic force transmission moment is big therefore make the magnetic force reduction gear small, and magnet can work under higher temperature, reduces cooling system's pressure, does not have the loss of fluid and reveals the pollution, has fine market development prospect.
Disclosure of Invention
The invention provides a novel speed reducer for a vehicle, which is arranged on a driving shaft and overcomes the defects of the traditional vehicle braking.
The technical solution of the invention is realized as follows:
a magnetic force reducer for vehicle braking installed on a driving shaft comprises a magnetic force reducer, a cooling system, a vehicle water tank and a vehicle driving shaft gear, and is characterized in that the magnetic force reducer consists of a connecting body, a wear-resistant layer, a sliding groove, a magnetic separation disc, a magnet, a copper disc, a magnetic disc body, a copper disc body, a bearing I, an accelerating gear, a shaft, an end cover I, a body frame I, a reversing hydraulic cylinder, a water inlet flange port, a body frame II, an end cover II, a bearing II, a return water flange port and a cooling water pipe, wherein the body frame I and the body frame II are integrated into a whole through the connecting body and then fastened on a bracket installed on a vehicle body, the accelerating gear is installed at one end of the shaft, the shaft is supported on the integrated frame by the bearing I and the bearing II, the magnetic separation disc is sealed by the end cover I and the end cover II, magnets uniformly distributed along the circumferential direction are embedded in the magnetic, the inner surface of the copper disc body and the magnet are oppositely provided with the copper disc, the outer surface of the copper disc body is rigidly connected with piston rods of a pair of reversing hydraulic cylinders symmetrically arranged on the body frame I, a pair of convex blocks which are symmetrically extended out in the radial direction of the copper disc body are respectively inserted into symmetrically arranged sliding grooves of the inner ring surface of the connecting body and can axially slide in a reciprocating manner, a wear-resistant layer is embedded at the bottom of the sliding grooves, when braking is performed, hydraulic oil is supplied to push piston cylinder rods of the reversing hydraulic cylinders to drive the copper disc body to enable the copper disc to stop when the copper disc is close to the magnet and keeps the distance of the maximum magnetic force transmitted, the minimum distance is positioned by the right end surface of the sliding grooves, pressure is maintained to stop moving, the magnet and the copper disc generate the; when the vehicle is not braked, the hydraulic oil inlet and the hydraulic oil outlet are changed to reversely push a piston rod of the reversing hydraulic cylinder to pull a copper disc body to enable the copper disc to be away from a magnet and to be stopped when a safe interval which does not transmit magnetic force is kept, the safe interval which does not transmit magnetic force is positioned by the left end face of the sliding chute and is kept pressure to stop moving, the magnet and the copper disc are kept at a safe distance which does not generate magnetic force, the rotation of the vehicle wheel is not influenced, a cooling water pipe is wound in the space at the other end of the shaft, and two ends of the cooling; the cooling system consists of a heat exchanger water outlet pipe, a pressure pump, a heat exchanger, a support, a heat exchanger water return pipe, a heat exchanger cooling water inlet pipe and a heat exchanger cooling water return pipe, wherein the heat exchanger is fixedly arranged on the support; the vehicle driving shaft gear is in meshing transmission with the speed increasing gear; when braking, a vehicle water tank pump is started, cooling water is provided to return to the vehicle water tank through a heat exchanger for heat dissipation and then is circularly cooled, meanwhile, a pressure pump is started, water with pressure enters a cooling water pipe through a water outlet pipe and a water inlet flange port of the heat exchanger, heat generated when a magnetic speed reducer is braked is absorbed to heat the water, and high-temperature water flowing out of the cooling water pipe flows back to the heat exchanger through a water return flange port and a water return pipe of the heat exchanger for heat exchange and temperature reduction; when the brake is not applied, the vehicle water tank pump and the pressure pump are closed.
The magnetic force speed reducer can be used for all rail-bound and trackless vehicles which are driven by a driving shaft to rotate wheels to walk.
The reversing hydraulic cylinder can also use a push rod motor.
Compared with the prior art, the invention has the advantages that:
1. the magnetic transmission technology is used for vehicle braking, and the magnetic speed reducer is small in size due to large magnetic transmission torque;
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 is shown in figure 4.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial view A-A of FIG. 1;
FIG. 3 is a view from the direction B of FIG. 1;
FIG. 4 is a diagram of the vehicle accessory and magnetic retarder arrangement.
In the figure, 1, a magnetic speed reducer, 11, a connector, 12, a wear-resistant layer, 13, a chute, 14, a magnetic isolation disc, 15, a magnet, 16, a copper disc, 17, a magnetic disc body, 18, a copper disc body, 19, a bearing I, 110, an acceleration gear, 111, a shaft, 112, an end cover I, 113, a body frame I, 114, a push rod motor, 115, a water inlet flange port, 116, a body frame II, 117, an end cover II, 118, a bearing II, 119, a water return flange port, 120, a cooling water pipe, 2, a cooling system, 21, a heat exchanger water outlet pipe, 22, a pressure pump, 23, a heat exchanger, 24, a support, 25, a heat exchanger water return pipe, 26, a heat exchanger cooling water inlet pipe, 27, a heat exchanger cooling water return pipe, 3, a vehicle water tank, 4 and a vehicle driving shaft.
Detailed Description
As shown in figures 1, 2, 3 and 4, the magnetic retarder for braking a vehicle mounted on a driving shaft comprises a magnetic retarder 1, a cooling system 2, a vehicle water tank 3 and a vehicle driving shaft gear 4, and is characterized in that the magnetic retarder 1 consists of a connecting body 11, a wear-resistant layer 12, a chute 13, a magnetic separation disc 14, a magnet 15, a copper disc 16, a magnetic disc body 17, a copper disc body 18, a bearing I19, a speed-increasing gear 110, a shaft 111, an end cover I112, a body frame I113, a reversing hydraulic cylinder 114, a water inlet flange port 115, a body frame II 116, an end cover II 117, a bearing II 118, a water return flange port 119 and a cooling water pipe 120, the body frame I113 and the body frame II 116 are integrated with the connecting body 11 and then fastened on a support 24 mounted on the vehicle body, the speed-increasing gear 110 is mounted at one end of the shaft 111, the shaft 111 is supported on the integrated frame by the bearing I19 and the bearing II 118, the end cover II 117 is sealed, magnets 15 which are uniformly distributed along the circumferential direction are embedded in a magnetic disc body 17, a magnetic separation disc 14 is arranged on the surface far away from a copper disc 16, the magnetic disc body 17 is fixed on a shaft 111 by a key and a spring retainer ring, the copper disc 16 is arranged on the inner surface of the copper disc body 18 opposite to the magnets 15, piston rods of a pair of reversing hydraulic cylinders 114 which are symmetrically arranged on a body frame I113 are rigidly connected outside the copper disc body 18, a pair of convex blocks which are symmetrically extended out in the radial direction of the copper disc body 18 are respectively inserted into symmetrically arranged sliding grooves 13 on the inner ring surface of a connecting body 11 and can axially reciprocate, a wear-resistant layer 12 is embedded at the bottom of the sliding grooves 13, when braking is carried out, hydraulic oil is supplied to push the piston rods of the reversing hydraulic cylinders 114 to drive the copper disc body 18 to enable the copper disc 16 to stop when the copper disc body 18 is close to the magnets 15 and keep the distance of the maximum magnetic, the wheels are decelerated and braked through the meshing transmission of the speed increasing gear 110 and the vehicle driving shaft gear 4; when the vehicle is not braked, the hydraulic oil inlet and outlet are changed to reversely push a piston rod of the reversing hydraulic cylinder 114 to pull the copper disc body 18 to enable the copper disc 16 to be away from the magnet 15 and to be stopped when the copper disc body is kept at a safe distance without transmitting magnetic force, the safe distance without transmitting magnetic force is positioned by the left end face of the sliding chute 13, pressure is maintained, the copper disc 16 is stopped, the magnet 15 and the copper disc 16 are kept at the safe distance without generating magnetic force, the rotation of the vehicle wheel is not influenced, a cooling water pipe 120 is wound in the space at the other end of the shaft 111, and two ends of the cooling water pipe 120 penetrate; the cooling system 2 is composed of a heat exchanger water outlet pipe 21, a pressure pump 22, a heat exchanger 23, a support 24, a heat exchanger water return pipe 25, a heat exchanger cooling water inlet pipe 26 and a heat exchanger cooling water return pipe 27, wherein the heat exchanger 23 is fixedly installed on the support 24, a water suction port of the pressure pump 22 is communicated with the heat exchanger 23, two ends of the heat exchanger water outlet pipe 21 are respectively communicated with a water outlet of the pressure pump 22 and a water inlet flange port 115, two ends of the heat exchanger water return pipe 25 are respectively communicated with a water return port of the heat exchanger 23 and a water return flange port 119, the heat exchanger cooling water inlet pipe 26 is communicated with a water outlet pipe of the vehicle water tank 3, and; the vehicle driving shaft gear 4 is in meshed transmission with the speed increasing gear 110; during braking, a pump of the vehicle water tank 3 is started, cooling water is provided to return to the vehicle water tank 3 through a heat exchanger 23 for heat dissipation and then is circularly cooled, meanwhile, a pressure pump 22 is started, water with pressure enters a cooling water pipe 120 through a water outlet pipe 21 of the heat exchanger and a water inlet flange port 115, heat generated during braking of the magnetic speed reducer 1 is absorbed to heat the water, high-temperature water flowing out of the cooling water pipe 120 flows back to the heat exchanger 23 through a water return flange port 119 and a water return pipe 25 of the heat exchanger for heat exchange and temperature reduction; when the brake is not applied, the radiator 3 pump and the pressure pump 22 are turned off.
The magnetic force speed reducer 1 can be used for all rail-bound and trackless vehicles which are driven by a driving shaft to rotate wheels to walk.
The reversing cylinder 114 may also be a push rod motor.
Claims (3)
1. A magnetic force reducer for braking a vehicle and arranged on a driving shaft comprises a magnetic force reducer (1), a cooling system (2), a vehicle water tank (3) and a vehicle driving shaft gear (4), and is characterized in that the magnetic force reducer (1) consists of a connector (11), a wear-resistant layer (12), a chute (13), a magnetism isolating disc (14), a magnet (15), a copper disc (16), a magnetic disc body (17), a copper disc body (18), a bearing I (19), a speed-increasing gear (110), a shaft (111), an end cover I (112), a body frame I (113), a reversing hydraulic cylinder (114), a water inlet flange port (115), a body frame II (116), an end cover II (117), a bearing II (118), a water return flange port (119) and a cooling water pipe (120), wherein the body frame I (113) and the body frame II (116) form an integral frame through the connector (11) and then are fastened on a support (24) arranged on a vehicle body, the speed-increasing gear (110) is arranged at one end of a shaft (111), the shaft (111) is supported on an integrated frame by a bearing I (19) and a bearing II (118), the shaft is sealed by an end cover I (112) and an end cover II (117), magnets (15) which are uniformly distributed along the circumferential direction are embedded in a magnetic disk body (17), a magnetic separating disk (14) is arranged far away from the surface of a copper disk (16), the magnetic disk body (17) is fixed on the shaft (111) by a key and a spring retainer ring, the inner surface of the copper disk body (18) and the magnets (15) are oppositely provided with the copper disk (16), the outer surface of the copper disk body (18) is rigidly connected with piston rods of a pair of reversing hydraulic cylinders (114) which are symmetrically arranged on the integrated frame I (113), a pair of convex blocks which are symmetrically extended out in the radial direction of the copper disk body (18) are respectively inserted into symmetrically arranged sliding chutes (13) on the inner ring surface of a, the hydraulic oil is supplied to push a piston cylinder rod of a reversing hydraulic cylinder (114) to drive a copper disc body (18) to enable a copper disc (16) to be close to a magnet (15) and stop when the copper disc is kept at a distance for transmitting the maximum magnetic force, the magnet (15) and the copper disc (16) generate the maximum magnetic force in the minimum magnetic gap to enable a shaft (111) to generate counter torque, and the accelerating gear (110) and a vehicle driving shaft gear (4) are in meshing transmission to enable wheels to decelerate and brake; when the automobile is not braked, the hydraulic oil inlet and outlet are changed to push a piston rod of the reversing hydraulic cylinder (114) in a reverse direction to pull a copper disc body (18) to enable the copper disc (16) to be away from the magnet (15) and stop when the copper disc body (18) is kept at a safe distance without transmitting magnetic force, the safe distance without transmitting magnetic force is positioned by the left end face of the sliding chute (13) and pressure is maintained to stop moving, the magnet (15) and the copper disc (16) are kept at a safe distance without generating magnetic force, the rotation of the automobile wheel is not influenced, a cooling water pipe (120) is wound in the space at the other end of the shaft (111), and two ends of the cooling water pipe (120) penetrate through the connecting body (11); the cooling system (2) consists of a heat exchanger water outlet pipe (21), a pressure pump (22), a heat exchanger (23), a support (24), a heat exchanger water return pipe (25), a heat exchanger cooling water inlet pipe (26) and a heat exchanger cooling water return pipe (27), wherein the heat exchanger (23) is fixedly installed on the support (24), a water suction port of the pressure pump (22) is communicated with the heat exchanger (23), two ends of the heat exchanger water outlet pipe (21) are respectively communicated with a water outlet of the pressure pump (22) and a water inlet flange port (115), two ends of the heat exchanger water return pipe (25) are respectively communicated with a water return port and a water return flange port (119) of the heat exchanger (23), the heat exchanger cooling water inlet pipe (26) is communicated with a water outlet pipe of the vehicle water tank (3), and the heat exchanger cooling water; the vehicle driving shaft gear (4) is in meshed transmission with the speed increasing gear (110); during braking, a pump of the vehicle water tank (3) is started, cooling water is provided to return to the vehicle water tank (3) through a heat exchanger (23) for heat dissipation and then is cooled circularly, meanwhile, a pressure pump (22) is started, water with pressure enters a cooling water pipe (120) through a water outlet pipe (21) and a water inlet flange port (115) of the heat exchanger, heat generated during braking of the magnetic speed reducer (1) is absorbed to enable the water to be heated, and high-temperature water flowing out of the cooling water pipe (120) flows back to the heat exchanger (23) through a water return flange port (119) and a water return pipe (25) of the heat exchanger for; when the brake is not applied, the pump of the vehicle water tank (3) and the pressure pump (22) are closed.
2. A magnetic retarder for braking vehicles mounted on a drive axle according to claim 1, characterised in that the magnetic retarder (1) is used for all track-bound and trackless vehicles which run on wheels driven by the drive axle.
3. A magnetic retarder for braking systems of vehicles according to claim 1 characterised in that the said reversing cylinder (114) can also be a push rod motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594007.9A CN108775354B (en) | 2018-06-11 | 2018-06-11 | Magnetic retarder for braking vehicle mounted on driving shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810594007.9A CN108775354B (en) | 2018-06-11 | 2018-06-11 | Magnetic retarder for braking vehicle mounted on driving shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108775354A CN108775354A (en) | 2018-11-09 |
| CN108775354B true CN108775354B (en) | 2019-12-20 |
Family
ID=64025934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810594007.9A Active CN108775354B (en) | 2018-06-11 | 2018-06-11 | Magnetic retarder for braking vehicle mounted on driving shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108775354B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792704B (en) * | 2019-11-14 | 2021-04-06 | 重庆理工大学 | Internal gear pump type circulating cooling magnetorheological fluid brake |
| CN110843849B (en) * | 2019-12-02 | 2020-06-19 | 南京白下高新技术产业园区投资发展有限责任公司 | Railway track type multiple speed reduction transport vehicle |
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| JP2004215430A (en) * | 2003-01-07 | 2004-07-29 | Sumitomo Metal Ind Ltd | Reduction gear utilizing eddy current |
| JP2004297940A (en) * | 2003-03-27 | 2004-10-21 | Sumitomo Metal Ind Ltd | Eddy current speed reducer |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108775354A (en) | 2018-11-09 |
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