Ceramic gasket structure of hydraulic cylinder body

Abstract

The utility model provides a hydraulic cylinder body ceramic gasket structure, which belongs to the field of hydraulic cylinder body processing equipment and comprises a cylinder barrel, a ceramic lining is sleeved in the cylinder barrel, sealing heads are arranged at two ends of the cylinder barrel, and a piston rod is arranged in the ceramic lining in a sliding manner. Limiting rods on the two sides of a ceramic lining are located in limiting grooves, the ceramic lining is limited and prevented from rotating in a piston cavity, after the ceramic lining is placed in the piston cavity, a first connector is rotationally arranged on threads arranged at the two ends of a cylinder barrel, and then a piston is placed in the ceramic lining in a sliding mode; the smooth surface of the ceramic lining can be used for reducing abrasion to the piston, then a threaded hole in the flange plate is aligned with a threaded hole in the first connector, the flange plate and the first connector are fixedly connected through a fastening bolt, the piston rod penetrates through the flange plate at one end, and the piston can conveniently drive the piston rod to move.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic cylinder body processing equipment, and particularly relates to a ceramic gasket structure for a hydraulic cylinder body. Background Art

[0002] The piston seals of hydraulic cylinders all have a certain service life. This is mainly because the seals need to maintain close contact with the cylinder walls of the hydraulic cylinders and often need to maintain relative movement. Therefore, corresponding wear is inevitably generated. So, after a certain period of use, the seals reach their service life. In order to achieve or extend the service life of hydraulic cylinders, the general method is: if possible, try to improve the surface finish of the inner walls of hydraulic cylinders, and the method of improving the surface finish of the inner walls of hydraulic cylinders mainly uses precision machining at present. Although the technology of precision machining has been greatly improved at present, due to the limitations of the process, the improvement of the surface finish is still far from meeting the needs of the inner walls of hydraulic cylinders. Therefore, it is particularly necessary to improve the surface finish of the inner walls of hydraulic cylinders, extend the service life of hydraulic cylinders, reduce the use cost of hydraulic cylinders, and reduce the replacement or maintenance time of hydraulic cylinders from other ways. Content of the Utility Model

[0003] In view of this, the utility model provides a ceramic gasket structure for a hydraulic cylinder body, which can reduce the wear on the piston by sleeving a ceramic bushing in the cylinder barrel, and use threaded connections at both ends of the cylinder barrel to effectively and quickly replace the ceramic bushing.

[0004] To solve the above technical problems, the utility model provides a ceramic gasket structure for a hydraulic cylinder body, including a cylinder barrel, which is the outer shell of the hydraulic cylinder and is used to limit the piston. A ceramic bushing is sleeved in the cylinder barrel, and the ceramic bushing is used to improve the surface finish of the inner wall of the hydraulic cylinder, extend the service life of the hydraulic cylinder, and reduce the use cost of the hydraulic cylinder. Sealing heads are provided at both ends of the cylinder barrel, and the sealing heads are used to seal and limit the ceramic bushing and hydraulic oil in the piston cavity to prevent the piston or hydraulic oil from flowing out. A piston rod slides in the ceramic bushing, and the piston rod is used to cooperate with the piston.

[0005] A piston cavity is provided in the cylinder barrel, and the piston cavity is used to place the ceramic bushing. A limiting groove is provided on the cylinder barrel, and the limiting groove is used to limit the limiting rods connected to both sides of the ceramic bushing. By the cooperation of the sealing head and the limiting groove, the ceramic bushing can be fixed in the piston cavity, and the limiting grooves are symmetrically arranged on both sides of the piston cavity.

[0006] Limiting rods that match the limiting grooves are symmetrically provided on both sides of the ceramic bushing. The limiting rods are used to connect the ceramic bushing and limit the ceramic bushing, and the limiting rods slide in the limiting grooves.

[0007] Both ends of the cylinder barrel are symmetrically provided with threads, which are used to connect the first connector, facilitating the subsequent disassembly of the sealing head and the replacement of the ceramic bushing. The sealing head includes a first connector, which is used to connect and fix the flange plate, and the first connector is rotatably arranged on the threads.

[0008] One side of the first connector is connected with a flange plate, which is used to connect with the first connector to make the piston cavity sealed. Threaded holes are provided on both the flange plate and the first connector, and the threaded holes are used for the fastening bolts to pass through to limit the fastening bolts.

[0009] The threaded hole is provided with a fastening bolt for connecting the flange plate and the first connector. The fastening bolt is used to fixedly connect the flange plate and the first connector. One end of the piston rod is connected with a piston, which is used to drive the piston rod to move in the piston cavity, and the piston is slidably arranged in the ceramic bushing.

[0010] The beneficial effects of the above technical solutions of the present utility model are as follows:

[0011] 1. Place the ceramic bushing into the piston cavity, so that the limiting rods on both sides of the ceramic bushing are located in the limiting grooves to limit the ceramic bushing and prevent the ceramic bushing from rotating in the piston cavity, reducing the wear of the ceramic bushing.

[0012] 2. Slide the piston into the ceramic bushing. Using the ceramic bushing can utilize the smooth surface of the ceramic bushing to reduce the wear of the piston.

[0013] 3. The first connector and the cylinder barrel are connected by threads, and the flange plate and the first connector are fixedly connected by fastening bolts, so that the piston rod passes through one end of the flange plate, facilitating the piston to drive the piston rod to move, completing the assembly of the ceramic gasket structure of the hydraulic cylinder body, and also enabling the quick replacement of the cylinder barrel and the sealing head. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the main structure of a ceramic gasket structure of a hydraulic cylinder body of the present utility model;

[0015] Figure 2 It is a left view structure schematic diagram of the present utility model;

[0016] Figure 3 It is a right view structure schematic diagram of the present utility model;

[0017] Figure 4 It is a rear view structure schematic diagram of the present utility model.

[0018] Description of reference numerals: 100, cylinder barrel; 101, ceramic bushing; 102, sealing head; 103, piston rod; 104, piston cavity; 105, limiting groove; 106, limiting rod; 107, thread; 108, first connector; 109, flange; 110, threaded hole; 111, fastening bolt; 112, piston. Detailed implementation manners

[0019] For the purpose of making the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will describe the technical solutions of the embodiments of the present utility model in conjunction with the attached Figures 1-4 drawings, and clearly and completely describe the technical solutions of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model fall within the scope of protection of the present utility model.

[0020] As Figures 1-4 shown:

[0021] This embodiment provides a ceramic gasket structure for a hydraulic cylinder body, including a cylinder barrel 100. The cylinder barrel 100 is the outer shell of the hydraulic cylinder and is used to limit the piston 112. A ceramic bushing 101 is sleeved inside the cylinder barrel 100. The ceramic bushing 101 is used to improve the smoothness of the inner wall of the hydraulic cylinder, extend the service life of the hydraulic cylinder, and reduce the use cost of the hydraulic cylinder. Sealing heads 102 are provided at both ends of the cylinder barrel 100. The sealing heads 102 are used to seal and limit the ceramic bushing 101 and hydraulic oil in the piston cavity 104 to prevent the piston 112 or hydraulic oil from flowing out. A piston rod 103 slides inside the ceramic bushing 101. The piston rod 103 is used to cooperate with the piston 112, and one end of the piston rod 103 passes through the flange 109.

[0022] As Figure 1 , 4 shown:

[0023] A piston cavity 104 is provided inside the cylinder barrel 100. The piston cavity 104 is used to place the ceramic bushing 101. A limiting groove 105 is provided on the cylinder barrel 100. The limiting groove 105 is used to limit the limiting rods 106 connected to both sides of the ceramic bushing 101, and limit the limiting rods 106. Through the cooperation of the sealing head 102 and the limiting groove 105, the ceramic bushing 101 can be fixed in the piston cavity 104. The limiting grooves 105 are symmetrically arranged on both sides of the piston cavity 104.

[0024] As Figure 1 , 3 shown:

[0025] On both sides of the ceramic bushing 101, there are symmetrically arranged limiting rods 106 that match the limiting grooves 105. The limiting rods 106 are used to connect the ceramic bushing 101 and limit the ceramic bushing 101. The limiting rods 106 are slidably arranged in the limiting grooves 105.

[0026] As Figure 1 , 2 shown:

[0027] At both ends of the cylinder barrel 100, there are symmetrically arranged threads 107. The threads 107 are used to connect the first connection head 108, which facilitates the subsequent disassembly of the sealing head 102 and the replacement of the ceramic bushing 101. The sealing head 102 includes the first connection head 108. The first connection head 108 is used to connect the fixed flange 109. The first connection head 108 is rotatably arranged on the threads 107.

[0028] As Figure 2 , 3 shown:

[0029] On one side of the first connection head 108, there is a connected flange 109. The flange 109 is used to connect with the first connection head 108 to make the piston cavity 104 sealed. Both the flange 109 and the first connection head 108 are provided with threaded holes 107. The threaded holes 107 are used for the fastening bolts 111 to pass through and limit the fastening bolts 111.

[0030] As Figure 2 , 4 shown:

[0031] Inside the threaded hole 107, there is a fastening bolt 111 for connecting the flange 109 and the first connection head 108. The fastening bolt 111 is used to fixedly connect the flange 109 and the first connection head 108. One end of the piston rod 103 is connected with a piston 112. The piston 112 is used to drive the piston rod 103 to move in the piston cavity 104. The piston 112 is slidably arranged inside the ceramic bushing 101.

[0032] Working principle: When assembling the hydraulic cylinder, first place the ceramic bushing 101 into the piston cavity 104, so that the limit rods 106 on both sides of the ceramic bushing 101 are located in the limit grooves 105 to limit the ceramic bushing 101 and prevent the ceramic bushing 101 from rotating in the piston cavity 104. After placing the ceramic bushing 101 into the piston cavity 104, rotate the first connector 108 onto the threads 107 provided at both ends of the cylinder barrel 100. Then slide the piston 112 into the ceramic bushing 101. The smooth surface of the ceramic bushing 101 can be used to reduce the wear on the piston 112. Then align the threaded holes 107 on the flange 109 with the threaded holes 107 on the first connector 108, and use the fastening bolts 111 to fixedly connect the flange 109 and the first connector 108. Pass the piston rod 103 through one end flange 109 to facilitate the movement of the piston 112 driving the piston rod 103, thus completing the assembly of the ceramic gasket structure of the hydraulic cylinder body.

[0033] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle described in the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A ceramic gasket structure for a hydraulic cylinder body, characterized in that: It includes a cylinder barrel (100), a ceramic bushing (101) is sleeved inside the cylinder barrel (100), sealing heads (102) are provided at both ends of the cylinder barrel (100), and a piston rod (103) is slidably arranged inside the ceramic bushing (101); A piston chamber (104) is provided inside the cylinder barrel (100), a limiting groove (105) is provided on the cylinder barrel (100), and the limiting grooves (105) are symmetrically arranged on both sides of the piston chamber (104); Limiting rods (106) that are symmetrically arranged on both sides of the ceramic bushing (101) and are matched with the limiting grooves (105) are provided, and the limiting rods (106) are slidably arranged inside the limiting grooves (105); Threads (107) are symmetrically provided at both ends of the cylinder barrel (100), the sealing head (102) includes a first connection head (108), and the first connection head (108) is rotatably arranged on the threads (107); A flange plate (109) is connected to one side of the first connection head (108), and threaded holes (107) are provided on both the flange plate (109) and the first connection head (108); A fastening bolt (111) for connecting the flange plate (109) and the first connection head (108) is provided inside the threaded hole (107); one end of the piston rod (103) is connected with a piston (112), and the piston (112) is slidably arranged inside the ceramic bushing (101).

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