Novel magnetorheological gel brake of commercial vehicle

Abstract

The utility model discloses a novel magnetorheological gel brake of a commercial vehicle, which relates to the technical field of automotive brakes and comprises a magnet exciting coil, magnetorheological gel, a left shell, a right shell, a driving shaft and a driven shaft. The magnet exciting coil is installed in an annular groove formed between the left shell and the right shell, the driving shaft is rotationally connected into the left shell, a brake disc located in an installation groove formed between the left shell and the right shell is arranged at the inner end of the driving shaft, the driven shaft is rotationally connected into the right shell, and the inner end of the driven shaft penetrates through the brake disc to be connected with the driven disc. The driven disc and the brake disc are connected through screws, gaps are formed in the two sides of the driven disc, and the mounting grooves are filled with the magnetorheological gel. The left shell and the right shell are detachably connected, the magnet exciting coil can be conveniently installed, magnetorheological glue can be conveniently filled, the driving shaft and the brake disc are detachably connected, the driven shaft and the driven disc are detachably connected, and therefore the production assembly and subsequent maintenance efficiency of the brake is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile brake, concretely relates to a novel magnetorheological gel brake of commercial vehicle. BACKGROUND

[0002] In the operation process of commercial vehicle, reliable and efficient brake system is very important, and the magnetorheological gel double-disc brake is a commonly used transmission component, which is mainly applied to power transmission and separation between the driving shaft and the driven shaft, and realizes the brake function through the speed change or the change of the rotation direction of the driving part and the driven part. The magnetorheological gel assembly is the key part of the brake, which is filled in the specific chamber between the driven disc and the brake disc. The magnetorheological gel is an intelligent material which presents a low viscosity fluid state under the action of no magnetic field, and can rapidly change into a semi-solid state with high shear strength under the action of magnetic field, at this time, it has a certain shear yield stress. The existing magnetorheological gel brake is inconvenient to disassemble and assemble the internal components, thereby affecting the assembly and subsequent maintenance efficiency of production. SUMMARY

[0003] The utility model aims at providing a novel magnetorheological gel brake of commercial vehicle to overcome the above-mentioned defects in the prior art.

[0004] A novel magnetorheological gel brake of commercial vehicle, comprising an excitation coil and a magnetorheological gel, further comprising a left shell, a right shell, a driving shaft and a driven shaft, the left shell and the right shell are detachably connected, the excitation coil is installed in the annular groove formed between the left shell and the right shell, the driving shaft is rotatably connected in the left shell and the inner end of the driving shaft is provided with a brake disc located in the mounting groove formed between the left shell and the right shell, the driven shaft is rotatably connected in the right shell and the inner end of the driven shaft passes through the brake disc and is connected with the driven disc, the driven disc and the brake disc are connected through screws and the both sides of the driven disc are provided with gaps, and the magnetorheological gel is filled in the mounting groove.

[0005] Preferably, a left end cover connected with the left shell through a plurality of bolts is sleeved on the driving shaft.

[0006] Preferably, deep groove ball bearings one and two rotatably connected with the driving shaft are arranged in the left shell.

[0007] Preferably, an aluminum-plastic sliding bearing rotatably connected with the driven shaft is installed on the right shell.

[0008] Preferably, the driving shaft and the brake disc are connected through a plurality of screws.

[0009] Preferably, the left shell and the right shell are connected through a plurality of bolts.

[0010] Preferably, the model of the magnetorheological gel is MRG-60, and the internal magnetic particles are carbonyl iron powder CN type.

[0011] The utility model has the advantages of:

[0012] The left shell and the right shell are detachably connected, the exciting coil and the magnetorheological glue are conveniently installed, the driving shaft and the brake disc are detachably connected, the driven shaft and the driven disc are detachably connected, and therefore the production assembly and subsequent maintenance efficiency of the brake are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structural schematic diagram of the utility model as a whole.

[0014] Fig. 2 It is a structural schematic diagram of the utility model internally.

[0015] Fig. 3 It is a magnetization curve of the magnetorheological glue MRG-60 of the utility model.

[0016] In the drawing, 1, left shell; 11, installation groove; 12, left end cover; 13, deep groove ball bearing one; 14, deep groove ball bearing two; 2, right shell; 21, aluminum plastic sliding bearing; 3, exciting coil; 4, driving shaft; 5, brake disc; 6, driven shaft; 7, driven disc. DETAILED DESCRIPTION

[0017] The specific embodiment of the utility model is further explained in detail below by comparing the drawings and describing the embodiments, so as to help the person skilled in the art to have a more complete, accurate and deep understanding of the concept and technical scheme of the utility model.

[0018] As Figs. 1-3 shown, the utility model provides a novel magnetorheological glue brake of commercial vehicle, including exciting coil 3, magnetorheological glue, left shell 1, right shell 2, driving shaft 4 and driven shaft 6, the left shell 1 with right shell 2 detachable connection, the exciting coil 3 is installed in annular groove that is formed between left shell 1 and right shell 2, the driving shaft 4 is rotatably connected in left shell 1 and its inner end is provided with brake disc 5 in installation groove 11 that is formed between left shell 1 and right shell 2, the driven shaft 6 is rotatably connected in right shell 2 and its inner end passes through brake disc 5 and is connected with driven disc 7, driven disc 7 and brake disc 5 are connected by screw and the both sides of driven disc 7 are provided with gap, the magnetorheological glue is filled in installation groove 11, the model of magnetorheological glue is MRG-60, and the internal magnetic particle is carbonyl iron powder CN type.

[0019] In addition, the left end cover 12 connected with the left shell 1 by a plurality of bolts is sleeved on the driving shaft 4, and the deep groove ball bearing one 13 and the deep groove ball bearing two 14 rotatably connected with the driving shaft 4 are arranged in the left shell 1.

[0020] In addition, the right shell 2 is provided with an aluminum-plastic sliding bearing 21 connected with the driven shaft 6.

[0021] It should be noted that the driving shaft 4 and the brake disc 5 are connected by screws, so that the driving shaft 4 and the brake disc 5 can be disassembled conveniently.

[0022] In addition, the left shell 1 and the right shell 2 are connected by bolts, so that the left shell 1 and the right shell 2 can be disassembled conveniently.

[0023] In addition, the driving shaft 4, the left end cover 12, the deep groove ball bearing 14, the left shell 1, the right shell 2 and the driven shaft 6 are made of non-magnetic aluminum alloy material; the driven disc 7 and the brake disc 5 are made of strong magnetic low-carbon steel material.

[0024] When braking is needed, the control system controls the electromagnetic coil to generate a magnetic field, and the magnetorheological glue instantaneously changes into a semi-solid state, the driven disc 7 extrudes the magnetorheological glue to make it closely adhere to the brake disc 5, and strong friction force is generated by the high shear strength of the magnetorheological glue, so that the vehicle braking is realized.

[0025] In summary, the left shell 1 and the right shell 2 can be disassembled and connected, so that the excitation coil 3 and the magnetorheological glue can be filled conveniently, the driving shaft 4 and the brake disc 5, and the driven shaft 6 and the driven disc 7 can be disassembled and connected, so that the production and assembly efficiency of the brake and the subsequent maintenance efficiency are improved.

[0026] The above-mentioned embodiments of the utility model do not constitute the limitation to the protection scope of the utility model. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A novel magnetorheological rubber brake for commercial vehicles, comprising an excitation coil (3) and magnetorheological rubber, characterized in that: It also includes a left housing (1), a right housing (2), a drive shaft (4) and a driven shaft (6). The left housing (1) and the right housing (2) are detachably connected. The excitation coil (3) is installed in the annular groove formed between the left housing (1) and the right housing (2). The drive shaft (4) is rotatably connected to the left housing (1) and its inner end is provided with a brake disc (5) located in the mounting groove (11) formed between the left housing (1) and the right housing (2). The driven shaft (6) is rotatably connected to the right housing (2) and its inner end passes through the brake disc (5) and is connected to the driven disc (7). The driven disc (7) and the brake disc (5) are connected by screws and there are gaps on both sides of the driven disc (7). The magnetorheological adhesive is filled in the mounting groove (11).

2. The novel magnetorheological rubber brake for commercial vehicles according to claim 1, characterized in that: The drive shaft (4) is fitted with a left end cap (12) which is connected to the left housing (1) by several bolts.

3. A novel magnetorheological rubber brake for commercial vehicles according to claim 1, characterized in that: The left housing (1) is provided with a deep groove ball bearing (13) and a deep groove ball bearing (14) that are rotatably connected to the drive shaft (4).

4. A novel magnetorheological rubber brake for commercial vehicles according to claim 1, characterized in that: An aluminum-plastic sliding bearing (21) is installed on the right housing (2) and is rotatably connected to the driven shaft (6).

5. A novel magnetorheological rubber brake for commercial vehicles according to claim 1, characterized in that: The drive shaft (4) and the brake disc (5) are connected by several screws.

6. A novel magnetorheological rubber brake for commercial vehicles according to claim 1, characterized in that: The left housing (1) and the right housing (2) are connected by several bolts.

7. A novel magnetorheological rubber brake for commercial vehicles according to claim 1, characterized in that: The magnetorheological adhesive is model MRG-60, and its internal magnetic particles are carbonyl iron powder CN type.

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