Self-lubricating base of hydraulic oil cylinder

Abstract

The self-lubricating base of the hydraulic oil cylinder comprises a base assembly, a shaft sleeve assembly and a shaft rod assembly, the shaft sleeve assembly is arranged in the middle of the interior of the base assembly, and the shaft rod assembly is arranged in the middle of the interior of the shaft sleeve assembly; the base assembly comprises a hydraulic oil cylinder base, a shaft hole and a key groove a. A set of base with a self-lubricating structure is provided for the hydraulic oil cylinder, so that when the hydraulic oil cylinder is used for supporting and transmitting an axial load, the friction of a supporting area at the bottom of the hydraulic oil cylinder can be greatly reduced through the matching of the shaft sleeve assembly and the shaft rod assembly which are of a graphite structure; the hydraulic oil cylinder is suitable for mechanical equipment in linear motion or providing axial force, and solves the problem that a base structure, used for providing axial load, of an existing hydraulic oil cylinder does not have a self-lubricating structure, workers need to supplement lubricating oil regularly for maintenance, and use complexity is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a self-lubricating base of a hydraulic oil cylinder. Background Art

[0002] Hydraulic cylinder is an important component of hydraulic system. It is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion or swinging motion. It is mainly used in hydraulic systems of various machines, such as equipment in machine tools, metallurgical machinery, plastic machinery, and petrochemical machinery.

[0003] The base of the existing hydraulic cylinder is the middle component that supports the cylinder body and transmits the axial load. During the axial load, a certain friction resistance will be generated between the axial hole of the hydraulic cylinder base and the shaft rod, requiring workers to frequently add oil for lubrication.

[0004] The existing base of the hydraulic cylinder has the following disadvantages: the existing base structure of the hydraulic cylinder used to provide axial load has no self-lubricating structure, so workers need to regularly add lubricating oil for maintenance, which leads to the problem of high cumbersomeness in use. To this end, we propose a self-lubricating base of the hydraulic cylinder. Utility Model Content

[0005] The main purpose of the utility model is to provide a self-lubricating base of a hydraulic cylinder, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A self-lubricating base of a hydraulic cylinder comprises a base assembly, a sleeve assembly and a shaft assembly, wherein the sleeve assembly is arranged in the middle of the base assembly, and the shaft assembly is arranged in the middle of the sleeve assembly;

[0008] The base assembly includes a hydraulic cylinder base, an axis hole and a keyway.

[0009] Furthermore, the hydraulic cylinder base is provided with an axial hole corresponding to the shaft sleeve assembly, and the top and bottom of the axial hole are respectively provided with a key groove.

[0010] Furthermore, the sleeve assembly includes a sleeve, a keyway b, a key block and an a graphite insert, the keyway b is respectively opened at the top and bottom of the sleeve, the sleeve is inserted into the shaft hole, and the keyway b of the sleeve and the keyway a of the shaft hole are fixed by the key block.

[0011] Furthermore, the graphite inserts a are arranged in multiple groups, and the graphite inserts a are fixedly embedded at equal distances along the inner wall of the sleeve.

[0012] Furthermore, the shaft assembly includes a shaft, b graphite inserts, pin holes and latches, the b graphite inserts are provided in multiple groups, the multiple groups of b graphite inserts are embedded at equal distances along the outer surface of the middle part of the shaft, the pin holes are provided in two groups, the two groups of pin holes are respectively opened through the two ends of the shaft, and the latches are inserted in the pin holes.

[0013] Compared with the prior art, the utility model has the following beneficial effects: through the assembly consisting of a base assembly, a sleeve assembly and a shaft rod assembly, a base with a self-lubricating structure is provided for the hydraulic cylinder, so that when the hydraulic cylinder supports and transmits axial loads, the friction of the area providing support at the bottom of the hydraulic cylinder can be greatly reduced through the cooperation of the sleeve assembly and the shaft rod assembly with a graphite structure. It is suitable for use in mechanical equipment that provides linear motion or axial force, and solves the problem that the base structure of the existing hydraulic cylinder used to provide axial loads does not have a self-lubricating structure, and workers need to regularly replenish lubricating oil for maintenance, resulting in high cumbersome use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a self-lubricating base of a hydraulic cylinder.

[0015] Figure 2 The utility model is an exploded schematic diagram of a self-lubricating base of a hydraulic cylinder.

[0016] Figure 3 The utility model is a schematic diagram of a shaft sleeve assembly of a self-lubricating base of a hydraulic cylinder.

[0017] Figure 4 The utility model is a schematic diagram of a shaft rod assembly of a self-lubricating base of a hydraulic cylinder.

[0018] Figure 5 The utility model is a schematic diagram of the assembly of a self-lubricating base and a hydraulic cylinder of the hydraulic cylinder.

[0019] In the figure: 1. base assembly; 101. hydraulic cylinder base; 102. shaft hole; 103. keyway a; 2. sleeve assembly; 201. sleeve; 202. keyway b; 203. key block; 204. graphite insert a; 3. shaft rod assembly; 301. shaft rod; 302. graphite insert b; 303. pin hole; 304. latch pin. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-5As shown, a self-lubricating base of a hydraulic cylinder includes a base assembly 1, a sleeve assembly 2 and a shaft assembly 3, wherein the sleeve assembly 2 is arranged in the middle of the base assembly 1, and the shaft assembly 3 is arranged in the middle of the sleeve assembly 2; the base assembly 1 includes a hydraulic cylinder base 101, a shaft hole 102 and a keyway 103.

[0022] The hydraulic cylinder base 101 is provided with an axial hole 102 corresponding to the shaft sleeve assembly 2 , and a key groove 103 is respectively provided at the top and the bottom of the axial hole 102 .

[0023] Among them, the shaft sleeve assembly 2 includes a shaft sleeve 201, a keyway b 202, a key block 203 and an a graphite insert 204, the b keyway 202 is respectively opened at the top and bottom of the shaft sleeve 201, the shaft sleeve 201 is inserted into the shaft hole 102, and the b keyway 202 of the shaft sleeve 201 and the a keyway 103 of the shaft hole 102 are clamped and fixed by the key block 203.

[0024] There are multiple groups of graphite inserts 204 , and the multiple groups of graphite inserts 204 are fixedly embedded at equal distances along the inner wall of the sleeve 201 .

[0025] Among them, the shaft assembly 3 includes a shaft 301, a graphite insert 302, a pin hole 303 and a plug 304. The graphite insert 302 is provided in multiple groups, and the multiple groups of graphite inserts 302 are embedded at equal distances along the outer surface of the middle part of the shaft 301. The pin hole 303 is provided in two groups, and the two groups of pin holes 303 are respectively opened at both ends of the shaft 301, and the plug 304 is inserted in the pin hole 303.

[0026] It should be noted that the utility model is a self-lubricating base of a hydraulic cylinder. When working, the worker using the hydraulic cylinder first fixes and assembles the shaft rod 301 on the equipment that needs to be assembled with the hydraulic cylinder. The assembly can be bolted or welded. The specific assembly method is set according to actual needs. The base component 1 is fixedly assembled on the bottom of the hydraulic cylinder, and then the shaft sleeve component 2 in the base component 1 is sleeved on the shaft rod 301, so that the outer periphery of the shaft rod 301 contacts the inner wall of the shaft sleeve 201 of the shaft sleeve component 2, and then the pin holes 303 at both ends of the shaft rod 301 are locked by the latch 304. The bushing 201 is inserted and fixed so that it is sleeved on the middle part of the shaft 301, and then the output end of the hydraulic cylinder is rotated and installed with the mechanical equipment that needs to be powered, so that the installation of the self-lubricating base of the hydraulic cylinder and the mechanical equipment can be completed. During the extension and retraction of the hydraulic cylinder, the bushing assembly 2 will complete axial movement on the shaft assembly 3. Based on the self-lubricating property of the graphite a insert 204 and the graphite b insert 302, the bushing 201 of the bushing assembly 2 and the shaft 301 of the shaft assembly 3 can maintain a self-lubricating effect for a long time, which can reduce the friction coefficient and improve the mechanical efficiency.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A self-lubricating base of a hydraulic cylinder, comprising a base assembly (1), a sleeve assembly (2) and a shaft assembly (3), characterized in that: The shaft sleeve assembly (2) is arranged in the middle of the base assembly (1), and the shaft rod assembly (3) is arranged in the middle of the shaft sleeve assembly (2). The base assembly (1) comprises a hydraulic cylinder base (101), an axial hole (102) and a keyway (103). The shaft sleeve assembly (2) comprises a shaft sleeve (201), a keyway (202), a key block (203) and a graphite insert (204). The keyway (202) is respectively arranged at the top and the bottom of the shaft sleeve (201). The shaft sleeve (201) is inserted into the axial hole (102), and the keyway (202) of the shaft sleeve (201) and the keyway (103) of the axial hole (102) are fixed by clamping via the key block (203).

2. The self-lubricating base of a hydraulic cylinder according to claim 1, characterized in that: The hydraulic cylinder base (101) is provided with an axial hole (102) corresponding to the shaft sleeve assembly (2), and a key groove (103) is respectively provided at the top and bottom of the axial hole (102).

3. The self-lubricating base of a hydraulic cylinder according to claim 1, characterized in that: The graphite inserts (204) are arranged in multiple groups, and the graphite inserts (204) are fixedly embedded at equal distances along the inner wall of the shaft sleeve (201).

4. The self-lubricating base of a hydraulic cylinder according to claim 1, characterized in that: The shaft assembly (3) comprises a shaft (301), a graphite insert (302), a pin hole (303) and a latch (304); the graphite insert (302) is provided in a plurality of groups, and the plurality of groups of graphite inserts (302) are equidistantly embedded along the outer surface of the middle portion of the shaft (301); the pin hole (303) is provided in two groups, and the two groups of pin holes (303) are respectively penetrated through the two ends of the shaft (301); and the latch (304) is inserted into the pin hole (303).

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