Magneto-rheological shock absorber sealing assembly

Abstract

The utility model discloses a magneto-rheological shock absorber sealing assembly which comprises an end cover, a piston rod, a fixing plate, a sealing cylinder and a fixing bolt, the end cover is arranged on a cylinder barrel of a magneto-rheological shock absorber, a dustproof ring and an O-shaped ring are sequentially arranged on the outer side of the end cover, the piston rod is inserted in the end cover in a penetrating mode, and the fixing plate is arranged on the end cover. The fixing plate is arranged outside the piston rod, the sealing cylinder is inserted into the fixing plate in a penetrating mode, a plurality of transparent plates are arranged on the sealing cylinder, and the fixing bolt penetrates through the sealing cylinder and then is in threaded connection with the fixing plate. According to the magneto-rheological damper, the fixing plate and the sealing cylinder are arranged, a sealing structure is added under the condition that use of the magneto-rheological damper is not affected, the sealing performance of the magneto-rheological damper is greatly improved, and meanwhile the magneto-rheological damper is convenient to assemble and disassemble due to the fact that the fixing bolts are arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetorheological shock absorbers, in particular to a sealing assembly of a magnetorheological shock absorber. Background Technique

[0002] The interior of a magnetorheological shock absorber is filled with magnetorheological fluid, which is a magnetic soft particle suspension formed by mixing tiny soft magnetic particles with high magnetic permeability and low hysteresis and a non-magnetic conducting liquid. When the liquid is injected into the electromagnetic coil inside the shock absorber piston, the magnetic field of the coil will change its rheological properties, thereby generating a rapidly responsive and highly controllable damping force in the case of no electromechanical control valve and a simple mechanical device. A magnetorheological shock absorber generally includes a piston rod, a cylinder barrel, an end cover, a magnetorheological valve, an electromagnetic coil, etc. In order to prevent foreign objects from the outside from being brought in when the piston rod moves, a sealing structure is installed inside the end cover. However, when used in a harsh environment for a long time, the sealing structure is likely to fail due to aging, resulting in foreign objects such as dust from the outside entering the cylinder barrel through the piston rod, which has certain deficiencies. Therefore, we have proposed a sealing assembly of a magnetorheological shock absorber. Content of the Utility Model

[0003] The utility model aims to solve the problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by the utility model is as follows: a sealing assembly of a magnetorheological shock absorber, including an end cover, a piston rod, a fixing plate, a sealing cylinder and fixing bolts. The end cover is arranged on the cylinder barrel of the magnetorheological shock absorber. The piston rod penetrates through the end cover. The fixing plate is arranged outside the piston rod. The sealing cylinder penetrates through the fixing plate. A plurality of transparent plates are arranged on the sealing cylinder. The fixing bolts pass through the sealing cylinder and are threadedly connected with the fixing plate.

[0005] Preferably, a dust-proof ring and an O-ring are sequentially arranged on the outer side of the end cover.

[0006] Preferably, the outer surface of the end cover is provided with a chromium plating layer, and the chromium plating layer is in contact with the inner side of the sealing cylinder.

[0007] Preferably, two threaded grooves for fixing the sealing cylinder are opened at the top end of the fixing plate, and the two threaded grooves are symmetrically distributed.

[0008] Preferably, a sealing ring for dust prevention is arranged on the outer side of the fixing plate, and the sealing ring is in fit with the inner side of the sealing cylinder.

[0009] Preferably, circular holes for installing the fixing bolts are opened at the top of the sealing cylinder, and the two circular holes correspond to the threaded grooves one by one.

[0010] By adopting the above technical solution, the beneficial effects achieved by the present utility model are as follows: By setting the fixing plate and the sealing cylinder, without affecting the use of the magnetorheological shock absorber, a sealing structure is added, greatly improving the sealing performance of the magnetorheological shock absorber. At the same time, by setting the fixing bolts, it is convenient for installation and disassembly. During use, the user can align the sealing cylinder with the top of the piston rod and insert and move it until the sealing cylinder contacts the top end of the fixing plate. After contact, it is fixed by the fixing bolts. After fixing, the sealing cylinder will be inserted outside the end cover, and a certain sealing space can be formed through the cooperation of the fixing plate and the sealing cylinder. The present utility model adds a sealing structure on the original basis, which can improve the sealing performance of the magnetorheological shock absorber, has a large range of use, and can be quickly installed and disassembled for replacement. Then, the sealing performance is improved by the dust-proof ring and the O-ring, which can prevent foreign matters such as dust from entering the sealing cylinder through the gap between the end cover and the sealing cylinder. The provided sealing ring can prevent foreign matters such as dust from entering the sealing cylinder through the gap between the sealing cylinder and the fixing plate, further improving the sealing effect. Finally, the hardness of the end cover can be increased by the chromium plating layer, which can greatly reduce the wear between the sealing cylinder and the end cover, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 For the present utility model Figure 1 is a schematic structural diagram after disassembling the sealing cylinder in;

[0013] Figure 3 For the present utility model Figure 1 is a schematic structural diagram of the sealing cylinder in.

[0014] REFERENCE SIGNS:

[0015] 100, end cover; 101, dust-proof ring; 102, O-ring; 103, chromium plating layer;

[0016] 200, piston rod;

[0017] 300, fixing plate; 301, threaded groove; 302, sealing ring;

[0018] 400, sealing cylinder; 401, transparent plate; 402, round hole;

[0019] 500, fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the specific embodiments and with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0021] The following describes some embodiments of the present utility model in conjunction with the accompanying drawings to provide a magnetorheological shock absorber sealing assembly.

[0022] Embodiment 1:

[0023] Refer to Figures 1-3 , which is the first embodiment of the present utility model. This embodiment provides a magnetorheological shock absorber sealing assembly, including an end cap 100, a piston rod 200, a fixing plate 300, a sealing cylinder 400, and fixing bolts 500.

[0024] Specifically, the end cap 100 is arranged on the cylinder barrel of the magnetorheological shock absorber. A dust-proof ring 101 and an O-ring 102 are sequentially arranged on the outer side of the end cap 100. During use, the sealing effect is improved through the dust-proof ring 101 and the O-ring 102, and it can prevent foreign matters such as dust from entering the sealing cylinder 400 through the gap between the end cap 100 and the sealing cylinder 400.

[0025] Furthermore, a chrome plating layer 103 is provided on the outer surface of the end cap 100, and the chrome plating layer 103 is in contact with the inner side of the sealing cylinder 400. During use, the chrome plating layer 103 can increase the hardness of the end cap 100, greatly reducing the wear between the sealing cylinder 400 and the end cap 100, and having a long service life.

[0026] Specifically, the piston rod 200 is inserted through the end cap 100.

[0027] Specifically, the fixing plate 300 is arranged outside the piston rod 200. Two threaded grooves 301 for fixing the sealing cylinder 400 are provided at the top of the fixing plate 300. The two threaded grooves 301 are symmetrically distributed. During use, the two threaded grooves 301 can be threadedly connected with the fixing bolts 500 to fix the sealing cylinder 400.

[0028] Furthermore, a sealing ring 302 for dust prevention is provided on the outer side of the fixing plate 300, and the sealing ring 302 is in close contact with the inner side of the sealing cylinder 400. During use, the sealing ring 302 can prevent foreign matters such as dust from entering the sealing cylinder 400 through the gap between the sealing cylinder 400 and the fixing plate 300, improving the sealing effect.

[0029] Specifically, the sealing cylinder 400 is inserted through the fixing plate 300. A plurality of transparent plates 401 are provided on the sealing cylinder 400. A circular hole 402 for installing the fixing bolts 500 is provided at the top of the sealing cylinder 400. The two circular holes 402 correspond to the threaded grooves 301 one by one. During use, a certain sealing space can be formed through the cooperation of the fixing plate 300 and the sealing cylinder 400. The present utility model adds a sealing structure on the original basis, which can improve the sealing performance of the magnetorheological shock absorber and has a wide range of applications.

[0030] Specifically, the fixing bolt 500 passes through the sealing cylinder 400 and is threadedly connected to the fixing plate 300. During use, the sealing cylinder 400 can be fixed on the fixing plate 300 through the fixing bolt 500 for easy installation and disassembly.

[0031] The working principle and usage process of the present utility model: During use, the user can align the sealing cylinder 400 with the top of the piston rod 200 and insert and move it until the sealing cylinder 400 contacts the top end of the fixing plate 300. After contact, it is fixed through the fixing bolt 500. After fixation, the sealing cylinder 400 will be inserted outside the end cover 100. A certain sealing space can be formed through the cooperation of the fixing plate 300 and the sealing cylinder 400. The present utility model adds a sealing structure on the original basis, which can improve the sealing performance of the magnetorheological shock absorber, has a wide range of applications, and can be quickly installed and disassembled for replacement. Then, the sealing effect is improved through the dust-proof ring 101 and the O-ring 102, which can prevent foreign matters such as dust from entering the sealing cylinder 400 through the gap between the end cover 100 and the sealing cylinder 400. The provided sealing ring 302 can prevent foreign matters such as dust from entering the sealing cylinder 400 through the gap between the sealing cylinder 400 and the fixing plate 300, further improving the sealing effect. Finally, the hardness of the end cover 100 can be improved through the chromium plating layer 103, greatly reducing the wear between the sealing cylinder 400 and the end cover 100, and having a long service life.

[0032] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A magnetorheological shock absorber sealing assembly, characterized in that, Including: An end cap (100), disposed on the cylinder barrel of the magnetorheological shock absorber; A piston rod (200), inserted through the end cap (100); A fixing plate (300), disposed outside the piston rod (200); A sealing cylinder (400), inserted through the fixing plate (300), and a plurality of transparent plates (401) are provided on the sealing cylinder (400); A fixing bolt (500), passing through the sealing cylinder (400) and threadedly connected to the fixing plate (300).

2. The magnetic rheological shock absorber sealing assembly according to claim 1, characterized in that, A dust-proof ring (101) and an O-ring (102) are sequentially disposed on the outer side of the end cap (100).

3. A magnetorheological shock absorber sealing assembly according to claim 1, characterized in that, A chromium plating layer (103) is provided on the outer surface of the end cap (100), and the chromium plating layer (103) is in contact with the inner side of the sealing cylinder (400).

4. A magnetorheological shock absorber sealing assembly according to claim 1, wherein, Two threaded grooves (301) for fixing the sealing cylinder (400) are formed at the top end of the fixing plate (300), and the two threaded grooves (301) are symmetrically distributed.

5. A magnetorheological shock absorber sealing assembly according to claim 1, wherein A sealing ring (302) for dust prevention is provided on the outer side of the fixing plate (300), and the sealing ring (302) is in fit with the inner side of the sealing cylinder (400).

6. A magnetorheological shock absorber sealing assembly according to claim 1, characterized in that, A circular hole (402) for installing the fixing bolt (500) is formed at the top of the sealing cylinder (400), and the two circular holes (402) correspond to the threaded grooves (301) one by one.

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