WO2014161146A1

WO2014161146A1 - Magnetorheological clutching, braking and transmission assembly

Info

Publication number: WO2014161146A1
Application number: PCT/CN2013/073618
Authority: WO
Inventors: 沈锡鹤; 劳渝声; 魏民
Original assignee: Shen Xihe
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2014-10-09

Abstract

A magnetorheological clutching, braking and transmission assembly integrates four functional mechanisms, that are, a clutch, a brake, a steering gear and a speed changer into a power transmission assembly unit and applies a magnetorheological technology and an integrated circuit technology to the field of power transmission centralized control. In the present invention, the work of a clutch and a brake is controlled by using a magnetorheological fluid as a core medium of power transmission, and in information feedback processing and real-time control are performed, by using an electronic control means, on functions such as instant or delayed clutching, pulsating or continuous braking, reverse or sequential steering, and automatic or manual locking required by power load, thereby making the transmission assembly apparatus small in size, light in weight and compact in structure.

Description

Magnetorheological clutch brake transmission assembly

[Technical Field] The present invention relates to the technical field of transmission assembly devices, and in particular to a transmission assembly device for magnetorheological clutching, braking, steering, and variable speed control, which is suitable for vehicle manufacturing, agricultural machinery, mining equipment, and military industry. All areas of equipment, shipyard industry, etc. that require power transmission and automatic control.

[Background Art] Magnetorheological fluid is a novel phase change material. It is a magnetic particle suspension composed of a combination of high magnetic permeability, low hysteresis of tiny (micron or even nanometer:) soft magnetic particles and non-magnetically permeable liquid. When there is no magnetic field, the suspended particulate iron particles move freely with the liquid; when the magnetic field is applied, the suspended particulate iron particles are attracted to each other to form a series of chain-like structures from one pole to the other of the magnetic field. The rheological liquid changes from Newtonian fluid to plastomer or viscoelastic elastomer with a certain yield shear stress at the moment of milliseconds. When the current in the magnetic field coil is changed to obtain a magnetic field of different strength, the yield shear stress of the magnetorheological fluid changes accordingly, that is, under the action of a strong magnetic field, the shear resistance is large, exhibiting a high viscosity characteristic; It exhibits low viscosity characteristics under magnetic field conditions. The shear yield strength has a stable correspondence with the magnetic field strength (or current magnitude:). It is this rheology controllability of magnetorheological fluid that enables continuous or instantaneous variable damping forces to achieve active flexible control of power transfer. As a new material for cutting-edge technology, magnetorheological fluids have attracted more and more attention due to their excellent material properties. The global research on magnetorheological materials and control technology is in the ascendant. Magnetorheological application technology belongs to the international research frontier technology, and has broad application prospects in the fields of vehicles, machinery, aerospace, shipbuilding, military, construction and so on. It is considered to be one of the most promising smart materials in the future, because the promotion of this material must involve multidisciplinary crossover technology, new product categories and mechatronic design. It is required that a large number of magneto-rheological applications have yet to be solved. Therefore, the current use of magnetorheological materials and the development of magnetorheological technology are still in their infancy, and the magnetorheological applications have not yet formed an industrial chain.

Conventional power transmission, load drive and mechanism control basically use the form of disassembly to configure the relevant mechanical devices. The design of the clutch, brake, steering and transmission devices required for the transmission process is scattered, and the types of components involved are very The complexity of the automation of the device is very low. Therefore, compared with the present invention, the structural parts of the conventional product are large in volume, the number of components is large, the production cost is high, and the conventional design technique is difficult to function with the sorting device. Optimized combinations make it harder to support technical upgrades for mechatronics of products. At present, there is no precedent for integrating the above-mentioned sorting device into a single transmission assembly device, and applying integrated circuits and magnetorheological control technology to perform information management and intelligent control on the power transmission function and the real-time process.

[Invention] The invention innovatively designs four functional mechanisms of a clutch, a brake, a steering gear and a transmission into a power transmission assembly unit, and firstly applies an integrated circuit and a magnetorheological technique to a power transmission centralized control field to solve The core medium with magnetorheological fluid as the power transmission, the instantaneous, delayed clutch, pulse, continuous braking, reverse steering, variable speed (speed limit constant speed), automatic (manual) required for dynamic load by electronic control means The blocking function performs information feedback processing and real-time operation and control, thereby maximizing the application of product weight reduction, structural simplification, volume miniaturization, material reduction, safe use, resource saving, cost reduction, environmental improvement and quality improvement. Purpose, and provide strong support for the promotion of new materials, new technologies, new processes and product upgrades. The object of the present invention is to provide a transmission assembly device integrating a clutch, a brake, a steering gear and a transmission integrated functional mechanism, and adopts advanced electronic control and magnetorheological material application technology to simplify product structure, improve handling performance, and save materials. Resources, lower production costs, and increase product value. In order to achieve the above objectives, a transmission assembly device for magnetorheological clutching, braking, steering, and shift control is designed, including an input gear shaft, a reverse shifting gear, a left brake pad, a left brake coil, and a right brake pad. , right brake coil, left clutch shaft, left clutch coil, right clutch shaft, right clutch coil, left output shaft, right output shaft, reversing spindle, clutch magnetorheological fluid and brake magnetorheological fluid, characteristics The one end of the input gear shaft is connected to the longitudinal end of the reversing shifting gear, and the lateral end of the reversing shifting gear is connected to the reversing main shaft, and the left and right ends of the reversing main shaft are respectively connected with the left clutch shaft and the right clutch shaft, the left clutch piece a left clutch coil and a right clutch coil are respectively wound around the outer side of the shaft and the right clutch shaft, and a clutch magnetorheological fluid is disposed in the inner cavity of the left clutch coil and the right clutch coil, and the left end of the left clutch shaft is connected to the left output shaft. The right end of the right clutch shaft is connected to the right output shaft, and the left output shaft and the right output shaft are respectively provided with a left brake piece and a right brake piece, respectively, and the left brake piece and the right brake piece are respectively respectively externally A coil wound left brake and a right brake coil, the coil within the cavity left brake and a right brake coil are provided inside the brake MRF. The transmission assembly device further includes a lower casing, an upper casing, a left bearing housing, an electronic control box, a right bearing housing, a mounting bracket, an integrated circuit module, an input bushing, a left bearing, a right bearing, and a left clutch bracket. , right clutch bracket, left brake bracket, right brake bracket, left and right reversing bushings, left and right clutch bobbins, left and right brake bobbins, rubber seals, left and right clutch shafts The sleeve, the left and right brake bushings, the left and right clutch chambers, the left and right brake chambers, and the left and right reversing bushings, and the left clutch bobbin and the right clutch disc shaft respectively have left clutch bobbins And the right clutch coil frame, the left clutch coil and the right clutch coil are respectively wound on the left clutch coil frame and the right clutch coil frame, and the left clutch coil frame and the right clutch coil frame are respectively provided with a left clutch chamber and a right clutch chamber, A magnetorheological fluid is disposed in the left clutch chamber and the right clutch chamber, and a left brake bracket and a right brake bracket are respectively disposed on the outer side of the left brake pad and the right brake pad, and the left brake bracket and the left brake bracket are respectively Left brake pad and right brake bracket and right brake pad Are provided between the left brake and a right brake chamber cavity, The upper and lower casings are support structures, reversing shifting gears, left brake pads, left brake coils, right brake pads, right brake coils, left clutch spools, left clutch coils, right clutch spools, right Clutch coil, left output shaft, right output shaft, reversing spindle, clutch magnetorheological fluid, brake magnetorheological fluid, left clutch bracket, right clutch bracket, left brake bracket, right brake bracket, left , right reversing bushing, left and right clutch bobbins, left and right brake bobbins, rubber seals, left and right clutch bushings, left and right brake bushings, left and right clutch chambers, left, The right brake cavity and the left and right reversing bushings are disposed in the upper and lower casings. An electronic control box is arranged on the top of the upper casing, an integrated circuit module is arranged in the electronic control box, and a mounting bracket is further arranged outside the upper casing. The left side of the left output shaft and the right side of the right output shaft are respectively provided with a left bearing and a right bearing, and the left bearing and the right bearing are respectively connected to the left bearing housing and the right bearing housing. The input shaft is sleeved with an input sleeve, and the left and right ends of the reversing spindle are respectively provided with a left reversing sleeve and a right reversing sleeve, and the left clutch shaft and the right clutch shaft are respectively sleeved outside. There are a left clutch bushing and a right clutch bushing, and a left brake bushing and a right brake bushing, respectively, between the left brake pad and the left output shaft and between the right brake pad and the right output shaft, respectively, the reversing spindle A rubber seal is arranged between the left clutch shaft and the right clutch shaft, and a rubber seal ring is provided between the left clutch shaft and the right clutch shaft and the left output shaft and the right output shaft, and the left brake pad and the right brake are provided. A rubber seal is arranged between the moving piece and the left output shaft and the right output shaft. In the transmission assembly device, the left and right clutch coils, the left and right clutch coil bobbins form two clutch coils, and the left and right brake coils, the left and right brake bobbins constitute two brake coils; left and right Clutch shaft, left and right clutch coils, left and right output shafts, left clutch bracket, right clutch bracket, left and right clutch sleeves, rubber seals, left and right clutch chambers, magnetorheological fluids, left and right sets The clutch mechanism, and the clutch mechanism is inserted into the clutch coil to form two sets of clutches; left and right brake pads, left and right brake brackets, rubber tight The seal, the left and right brake bushings, and the left and right brake chambers form two brake mechanisms, and the brake mechanism is sleeved into the brake coil to form two sets of brakes; the reverse shifting gear, the reversing spindle, and the reversing bushing Reversing mechanism. The magnetorheological fluid is the sole power transmission control medium, and performs dynamic clutching, braking, steering, shifting, and blocking operations through active changes in damping strength. The transmission method of the present invention is as follows: a. When power output is required, a current is input to the clutch coil, and a magneto-rheological fluid undergoes a phase change, and power is transmitted from the input gear shaft to the reverse shifting gear, the reversing main shaft, the left and right clutch shafts, and the output. The shaft makes the output shaft rotate; b. When the power brake is required, the clutch coil current is cut off, the clutch shaft idles, and the output shaft loses power; at the same time, the current is input to the brake coil, and the magneto-rheological fluid in the assembly brake occurs. Phase change, the brake pad and the output shaft are in the locked state; c When power steering is required, the current is input to the clutch coil at one end, so that the output shaft of one end is in a rotating state; at the same time, the current of the clutch coil at the other end is cut off, and the current is input to the brake coil, so that The output shaft of the other end is in the braking state; d. When the speed is changed, adjust the current input strength of the clutch coil to change the damping strength of the magnetorheological fluid, and change the torque and speed of the output shaft; e. When the distance protection is required, change instantaneously or Cut off the clutch coil current, input pulse or delay current to the brake coil, and adjust the distance according to the preset anti-collision protection distance. Current intensity, change the braking torque of the output shaft, the vehicle is decelerated or stopped. The invention can be applied to vehicle manufacturing, agricultural machinery, mining equipment, military equipment, and shipbuilding industry. The technical effects of the present invention are as follows:

1. The invention integrates the clutch, the brake, the steering gear and the transmission mechanism into one assembly component, and is installed at one time, effectively solving the traditional product adopting the partial installation technology to lead to large space occupation of components and a large number of accessories. The product installation structure is complex and the production efficiency is poor.

2. The clutch and brake made by the magnetorheological fluid of the invention have the advantages of large output, small volume, fast response, simple structure, continuously adjustable damping force, and easy realization of intelligent control. Through the program setting of the control system, the current parameters of the clutch coil or the brake coil are automatically adjusted, and the motion damping of the clutch plate or the brake pad is controlled in real time, so that the power transmission or the stop brake of the assembly device is in an optimal state, and is effective. Solve the automation functions that are difficult to achieve with traditional products.

3. The invention adopts a non-contact magnetorheological clutch and a brake, which effectively solves the mechanical loss and fault defects in the use of the conventional clutch and brake, and improves the reliability of the product.

4. Compared with the conventional products, the invention has the obvious advantages of light weight, reduction, simple structure, safe use, material saving, low cost, no pollution, and easy installation and maintenance.

5. As a core standard component, the magnetorheological assembly device of the present invention can implement assembly line production in the factory, perform effective quality supervision and standard management, and thoroughly solve the quality supervision problem caused by the complicated and decentralized management of traditional products.

6. The invention realizes large-scale production management, can effectively control production cost, reasonably reduce the market price of products, and improve product market competitiveness.

7. The invention integrates high-end intelligent technologies such as automatic control, remote control and wireless control, adopts new materials, new technologies, new processes, and mechatronics design methods, and upgrades the technology of traditional products and industries, and the development of advanced manufacturing. Play a positive role.

[Description of the Drawings] Figure (1) is an isometric view of the present invention

Figure (2) is an isometric front view of the present invention

Figure (3) is a top view of the present invention

Figure (4) is a cross-sectional view of the B-B of the present invention

Figure (5) is a cross-sectional view of the A-A of the present invention

Figure (6) is a cross-sectional view of the C office of the present invention

Designation diagram (5) is the abstract drawing

Referring to the drawings, wherein 1 is the lower casing; 2 is the upper casing; 3 is the left bearing housing; 4 is the electronic control box; 5 is the right bearing housing; 6 is the mounting bracket; 7 is the input gear shaft; 9 is an integrated circuit module; 10 is an input bushing; 11 is a left brake pad; 12 is a left brake coil; 13 is a right brake pad; 14 is a right brake coil; 15 is a left clutch shaft; 16 is the left clutch coil; 17 is the right clutch shaft; 18 is the right clutch coil; 19 is the left bearing; 20 is the right bearing; 21 is the left output shaft; 22 is the right output shaft; 23 is the left clutch bracket; Reversing spindle; 25 is the right clutch bracket; 26 is the left brake bracket; 27 is the right brake bracket; 28 is the left and right clutch bobbin; 29 is the left and right brake bobbin; 30 is the rubber seal; 31 is the left and right clutch sleeve; 32 is the left and right brake bushing; 33 is the clutch magnetorheological fluid; 34 is the brake magnetorheological fluid; 35 is the left and right clutch cavity; 36 is the left and right brake cavity; 37 is the left and right brake Bushing

[Detailed embodiment] The entire technical solution of the present invention will be further described in conjunction with the accompanying drawings and specific embodiments, which will be apparent to those skilled in the art. Embodiment A powertrain device designed by the present invention includes a lower casing, an upper casing, a left bearing housing, and an electronic Control box, right bearing housing, mounting bracket, input gear shaft, reverse shifting gear, integrated circuit module, input bushing, left brake pad, left brake coil, right brake pad, right brake coil, left clutch Shaft, left clutch coil, right clutch shaft, right clutch coil, left bearing, right bearing, left output shaft, right output shaft, left clutch bracket, right clutch bracket, reversing spindle, left brake bracket, right Brake bracket, left and right reversing bushings, left and right clutch bobbins, left and right brake bobbins, rubber seals, left and right clutch bushings, left and right brake bushings, clutch magnetorheological fluid, brake magnetorheological fluid, left and right Transmission assembly device controlled by integral magnetic rheology (clutch, brake, steering, shifting) composed of clutch chamber, left and right brake chambers, and left and right reversing bushings.

The magnetorheological transmission assembly structure, except for the mounting frame, the electronic control box, the bearing and the bearing housing, and other components including the clutching, braking, steering, shifting, and power transmission functions are installed inside the upper and lower housings. The housing is also a structural body having a supporting function, and constitutes a transmission assembly device controlled by magnetorheological (clutch, braking, steering, shifting).

The magnetorheological clutch assembly uses magnetorheological fluid as a medium for power transmission, and performs operation control of clutching and shifting on a power load by connecting an electronic control box, which is characterized by a clutch coil, a left and right output shaft, and a left and right clutch holder. The frame, the left and right clutch shafts, the left and right clutch chambers, the rubber sealing ring, and the left and right clutch sleeves form two sets of clutch parts, and a closed inner cavity space is formed between the clutch piece and the clutch cavity in the clutch structure, and is filled into the inner cavity. The clutch magnetorheological fluid realizes the control and management of the clutch by setting the current and voltage values of the clutch coil through the electronic control box.

The magnetorheological brake assembly uses a magnetorheological fluid as a brake damping material, and performs an operation control for braking a power load by connecting an electronic control box, which is characterized by a brake coil, a left and right output shaft, and a left and right brake bracket. The frame, the left and right brake pads, the left and right brake chambers, the rubber seal ring and the left and right brake bushings form two sets of brake structures, and a sealed inner cavity space is formed between the brake pads in the brake structure body and the brake cavity body. Fill the inner cavity space with the brake magnetorheological fluid, and the brake coil current and voltage through the electronic control box The setting operation of the value realizes the control management of the brake.

The magnetorheological control transmission assembly technology:

Transmission process: power input gear shaft, power reversing gear, reversing spindle, left and right clutch, shaft, left and right output shaft,

Control content: Power input, output, stop, instantaneous, delay, timing, braking, reverse, steering, variable speed (speed limit constant speed), automatic (manual) blocking operation control.

At the time of power output, the current is input to the clutch coil, and the magnetorheological material in the clutch undergoes a phase change. When the liquid is converted into a solid-like state, a damping force is generated. At this time, the power is transmitted from the clutch shaft to the output shaft, and the left and right output shafts are in a rotating state. .

During dynamic braking, the current of the clutch coil is cut off, and the magnetorheological fluid is reduced from a solid-like to a liquid state. At this time, the clutch shaft idles, the output shaft loses power, and at the same time, a current is input to the brake coil, and the magnetorheological fluid becomes solid-like. A damping force is generated, at which time the brake pad and the output shaft are in a locked braking state.

When the power load is turned, one end of the output shaft is in rotation; at this time, the other end of the output shaft is in a braking state.

When the output shaft speed changes, the input current of the clutch coil current is adjusted, and the torque and speed of the output shaft can be stably changed under the condition of constant load.

The magnetorheological control technology is characterized in that a power line, a signal line and a control line are connected to a power source, a signal source, a power source, a clutch coil and a brake coil through a terminal of the electronic control box, in the electronic control box The integrated circuit module has an automatic (remote, wireless) intelligent control function through a preset control program. The sensor or manual operation signal is randomly analyzed and processed, and the current and voltage values of the clutch coil and the brake coil are instantaneously adjusted to realize the power transmission process. Flexible control and real-time management.

The manufacturing method of the invention is as follows:

1. Prepare the parts and magnetorheological fluid materials according to the drawings. 2. The input gear shaft 7 and the input bushing 10 are loaded into the lower casing 1;

3. The reverse shifting gear 8, the reversing main shaft 24, and the reversing bushing 37 are loaded into the lower casing 1;

4. The left and right clutch coils (16, 18), the left and right clutch coil bogies 28, and the two clutch coils are formed, and the left and right brake coils (12, 14) and the left and right brake coil bobbins 29 are composed of two brake coils;

5. Left and right clutch shafts (15, 17), left and right clutch coils (16, 18), left and right output shafts (21, 22), left clutch bracket 23, right clutch bracket 25, left and right clutch sleeves 31, rubber The sealing ring 30, the left and right clutch chambers 35, and the magnetorheological fluid 33 constitute a left and right 2 clutch mechanism, and the clutch mechanism is sleeved into the clutch coil to form 2 sets of clutches;

6. The left and right brake pads (11, 13), the left and right brake brackets (26, 27), the rubber seal 30, the left and right brake bushings 32, and the left and right brake chambers 36 form a two-piece brake mechanism, and The brake mechanism is inserted into the brake coil to form two sets of brakes;

7. Put 2 sets of clutches and 2 sets of brakes into the lower casing 1 and reserve the joint line;

8. The integrated circuit module 9 is mounted in the electronic control box 4, and the electronic control box 4 is mounted above the upper casing 2;

9. Assembling the upper casing 2, the lower casing 1 mounting bracket 6, and withdrawing the reserved joint line from the upper casing 2;

10. Open the electronic control box cover and connect the connector wire of the clutch brake coil and the external signal, control and power cable to the terminal.

The implementation technology of the present invention is as follows:

1. When the power is input, it is transmitted from the input gear shaft to the reversing gear, and then transmitted to the reversing main shaft, and then transmitted to the left and right clutch shaft. If the clutch and brake coil have no control voltage, the coil magnetic field strength is Zero, left has no power output from the output shaft.

2. When the power is input, the coil generates magnetic field strength under the condition that the clutch and brake coil have control voltage, and the left and right output shafts have power output. 3. When the power is output, the current is input to the clutch coil, and the magnetorheological material in the clutch changes phase. When the liquid changes to a solid state, the damping force is generated. As the current power increases, the coil magnetic field changes from zero intensity to high intensity. The current intensity is proportional to the magnetic field strength, and the magnetic field strength is proportional to the magneto-rheological fluid damping strength of the clutch. At this time, the power is transmitted from the clutch shaft to the output shaft, and the left and right output shafts are in a rotating state.

4. When the power brakes, the clutch coil current is cut off, the clutch magnetorheological material is demagnetized, and the magnetorheological fluid is reduced from solid to liquid. At this time, the clutch shaft idles, the output shaft loses the driving force, and is input to the brake coil. The current, the magnetorheological material in the brake undergoes a phase change, and the magnetorheological fluid changes from a liquid to a solid state to generate a damping force. As the current power increases, the coil magnetic field changes from zero intensity to high intensity, and the current intensity and the magnetic field strength become Proportional, and the magnetic field strength is proportional to the magneto-rheological fluid damping strength of the brake, when the clutch shaft and the output shaft are in the locked braking state.

5. When the vehicle turns, input current to the clutch coil of a group of clutch brakes, and simultaneously cut off the brake coil current, and the output shaft connected to the group is in a rotating state; at this time, the clutch coil in the other set of clutch brakes cuts off the current, At the same time, current is input to the brake coil, and the output shaft connected to the group is in a locked braking state.

6. When the output shaft shifts, the electronic control box will adjust the input current of the clutch coil according to the sensor or manual operation signal, and automatically change the torque and speed of the output shaft.

Claims

Claim

1. A transmission assembly device for magnetorheological clutching, braking, steering, and variable speed control, including an input gear shaft, a reverse shifting gear, a left brake pad, a left brake coil, a right brake pad, and a right brake a coil, a left clutch shaft, a left clutch coil, a right clutch shaft, a right clutch coil, a left output shaft, a right output shaft, a reversing spindle, a clutch magnetorheological fluid, and a brake magnetorheological fluid, characterized in that One end of the input gear shaft is connected to the longitudinal end of the reversing shifting gear, and the lateral end of the reversing shifting gear is connected to the reversing main shaft. The left and right ends of the reversing main shaft are respectively connected with the left clutch shaft and the right clutch shaft, the left clutch shaft and the right clutch. A left clutch coil and a right clutch coil are respectively wound around the outer side of the spool shaft, and a clutch magnetorheological fluid is disposed in the inner cavity of the left clutch coil and the right clutch coil, and the left clutch shaft is connected to the left output shaft and the right clutch shaft. The right end of the shaft is connected to the right output shaft, and the left output shaft and the right output shaft are respectively provided with a left brake piece and a right brake pad, and the left brake piece and the right brake pad are respectively wrapped with a left brake line And right brake coil cavity left and right brake coil inside the coil of brake has a brake MRF.

2. The transmission assembly device of the magnetorheological clutch, brake, steering, and shift control according to claim 1, wherein the transmission assembly device further comprises a lower casing, an upper casing, and a left Housing, electronic control box, right housing, mounting bracket, integrated circuit module, input bushing, left bearing, right bearing, left clutch bracket, right clutch bracket, left brake bracket, right brake bracket, Left and right reversing bushings, left and right clutch bobbins, left and right brake bobbins, rubber seals, left and right clutch bushings, left and right brake bushings, left and right clutch chambers, left , the right brake cavity and the left and right reversing sleeves, the left clutch shaft and the right clutch shaft are respectively provided with a left clutch coil bobbin and a right clutch bobbin, and the left clutch coil and the right clutch coil are respectively wound around the left clutch On the coil bobbin and the right clutch bobbin, the left clutch coil frame and the right clutch coil bobbin are respectively provided with a left clutch chamber and a right clutch chamber, and the left clutch chamber and the right clutch chamber are provided with magnetorheological fluid, Left and right brake pads Side with a left and right brake bracket a brake bracket, A left brake cavity and a right brake cavity, a left brake cavity and a right brake cavity are respectively disposed between the left brake bracket and the left brake pad and between the right brake bracket and the right brake pad A magnetorheological fluid is provided in the body.

3. A transmission assembly device for magnetorheological clutch, brake, steering, and variable speed control according to claim 2, wherein the upper and lower casings are support structures, reversing gears, and left brakes. Chip, left brake coil, right brake pad, right brake coil, left clutch spool, left clutch coil, right clutch spool, right clutch coil, left output shaft, right output shaft, reversing spindle, clutch magnetic current Fluid change, brake magnetorheological fluid, left clutch bracket, right clutch bracket, left brake bracket, right brake bracket, left and right reversing bushings, left and right clutch bobbins, left and right Moving coil frame, rubber sealing ring, left and right clutch sleeves, left and right brake bushings, left and right clutch chambers, left and right brake chambers, and left and right reversing bushings are all arranged on the upper, Inside the lower housing.

4. A transmission assembly device for magnetorheological clutching, braking, steering, and variable speed control according to claim 2, wherein an electronic control box is disposed on the top of the upper casing, and an integrated circuit is disposed in the electronic control box. The module also has a mounting bracket on the outside of the upper casing.

5. The transmission assembly device for magnetorheological clutch, brake, steering, and variable speed control according to claim 1, wherein said left output shaft and said outer output shaft have left bearings respectively And the right bearing, the left bearing and the right bearing are connected to the left bearing housing and the right bearing housing, respectively.

6. The transmission assembly device of the magnetic rheological clutch, brake, steering, and shift control according to claim 1, wherein the input shaft is externally provided with an input sleeve, and the reverse shaft is left, The left end sleeve is respectively provided with a left reversing sleeve and a right reversing sleeve, and the left clutch shaft and the right clutch shaft are respectively sleeved with a left clutch sleeve and a right clutch sleeve, and the left brake pad and the left output respectively. A left brake bushing and a right brake bushing are disposed between the shaft and between the right brake pad and the right output shaft, respectively, the reversing spindle and the left clutch spool shaft and the right clutch spool shaft There is a rubber seal between the left and right clutch shafts and a rubber seal ring between the left and right output shafts, left and right brake pads and left and right output shafts. There is a rubber seal between the two.

7. A transmission assembly device for magnetorheological clutching, braking, steering, and variable speed control according to claim 1 or 2, wherein said transmission assembly device has left and right clutch coils, left, The right clutch coil bobbin constitutes two clutch coils, and the left and right brake coils, the left and right brake bobbins constitute two brake coils; the left and right clutch shafts, the left and right clutch coils, the left and right output shafts, The left clutch bracket, the right clutch bracket, the left and right clutch sleeves, the rubber seal ring, the left and right clutch chambers, and the magnetorheological fluid constitute two left and right clutch mechanisms, and the clutch mechanism is inserted into the clutch coil to form two clutches. The left and right brake pads, the left and right brake brackets, the rubber seal, the left and right brake bushings, and the left and right brake chambers form two brake mechanisms, and the brake mechanism is inserted into the brake coil to form two sets of brakes; A reversing mechanism is formed for the shifting gear, the reversing main shaft, and the reversing bushing.

8. A magneto-rheological clutching, braking, steering, shifting control transmission assembly apparatus according to claim 1 or 2, wherein said magnetorheological fluid is used as the sole power transmission control medium Active change in damping strength, performing power clutching, braking, steering, shifting, and blocking action.

9. A transmission method for a transmission assembly device for magnetorheological clutching, braking, steering, and variable speed control according to claim 1, wherein a. when power output is required, current is input to the clutch coil, and magnetic current is The liquid phase changes phase, and the power is transmitted from the input gear shaft to the reverse shifting gear, the reversing main shaft, the left and right clutch shafts, and the output shaft, so that the output shaft is in a rotating state; b. When dynamic braking is required, the clutch coil current is cut off, the clutch shaft is idling, and the output shaft loses power; at the same time, the current is input to the brake coil, and the magnetorheological fluid in the assembly brake phase changes, the brake pad and the output shaft In the locked state; c When power steering is required, the current is input to the clutch coil at one end, so that the output shaft of one end is in a rotating state; at the same time, the current of the clutch coil at the other end is cut off, and the current is input to the brake coil, so that the output shaft of the other end is in a braking state; d. When shifting is required, adjust the current input intensity of the clutch coil to change the damping strength of the magneto-rheological fluid, and change the torque and speed of the output shaft; e. When the distance protection is required, the clutch coil current is instantaneously changed or cut off, and the brake coil is turned to the brake coil. Input pulse or delay current, adjust the current intensity in real time according to the preset anti-collision protection distance, change the braking torque of the output shaft, and slow down or stop the vehicle.

10. Use of a transmission assembly device for magnetorheological clutching, braking, steering, and variable speed control according to claim 1, wherein said transmission assembly device is applied to vehicle manufacturing, agricultural machinery, mining Equipment, military equipment, shipbuilding industry.