Rear cover structure of hydraulic oil cylinder

Abstract

The utility model provides a rear cover structure of a hydraulic oil cylinder, which relates to the technical field of rear covers of hydraulic oil cylinders and comprises an oil cylinder rear cover body and a cylinder body, an annular groove is arranged at the bottom of the cylinder body, a sealing gasket is connected inside the annular groove in a sliding mode, and a pressing ring is fixedly arranged at the top of the oil cylinder rear cover body. Limiting grooves are symmetrically formed in the outer wall of the oil cylinder rear cover body. The rotating handle is sequentially rotated in the opposite direction to drive the threaded rod to rotate in the frame, the threaded rod is in threaded connection with the L-shaped plate, and the L-shaped plate is in sliding connection with the frame, so that the L-shaped plate moves in the direction away from the cylinder body along the frame; after the clamping ring moves for a certain distance, the inserting blocks on the inner wall of the clamping ring can be far away from the limiting grooves in the outer wall of the oil cylinder rear cover body, the oil cylinder rear cover body can be disassembled after being far away, the rapid disassembling function of the oil cylinder rear cover body is achieved through the design, and the situation that an operator needs to use tools in the disassembling process is effectively avoided; and the working time of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinder rear covers, in particular to a rear cover structure of a hydraulic oil cylinder. Background Art

[0002] The hydraulic cylinder rear cover is an important component of the hydraulic cylinder and plays a key role in the hydraulic system. The rear cover is tightly integrated with the cylinder body to prevent hydraulic oil leakage.

[0003] In the prior art, for example, Chinese Patent No. CN209937797U discloses a "Cylinder Rear Cover Connection Mechanism for a Scrap Metal Hydraulic Baler," which includes a cylinder body, a first threaded groove, a fixing screw, a second threaded groove, a cylinder rear cover body, a fixing block, a connecting block, a through-hole, and a washer. The top of the cylinder body has a first threaded groove, through which the fixing screw is threadedly connected. The bottom of the cylinder rear cover body has a second threaded groove, through which the fixing screw is threadedly connected. The bottom of the cylinder rear cover body is fixedly connected to the fixing block, and the bottom of the fixing block is fixedly connected to the connecting block. The top of the cylinder rear cover body has a through-hole, and a washer is mounted on the side of the cylinder rear cover body that contacts the inner wall of the cylinder body. This cylinder rear cover connection mechanism for a scrap metal hydraulic baler achieves the goal of convenient installation. However, disassembly of the cylinder rear cover requires the operator to use a tool to tighten the screws, which is inefficient and increases operator work time, thus requiring improvement. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that when removing the rear cover of the oil cylinder, an operator needs to use a tool to screw the screws, and proposes a rear cover structure of a hydraulic oil cylinder.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a rear cover structure of a hydraulic cylinder, comprising a cylinder rear cover body and a cylinder body, an annular groove is provided at the bottom of the cylinder body, a sealing gasket is slidably connected inside the annular groove, a pressure ring is fixedly installed on the top of the cylinder rear cover body, limiting grooves are symmetrically provided on the outer wall of the cylinder body, a frame is symmetrically fixedly installed on the outer wall of the cylinder body, a threaded rod is installed inside the frame, an L-plate is threadedly connected to the outer wall of the threaded rod, a clamping ring is fixedly installed on the end of the L-plate away from the frame, an insert is fixedly installed on the inner wall of the clamping ring, and a rotating handle is fixedly installed on the end of the threaded rod away from the cylinder body.

[0006] Preferably, the pressure ring is slidably connected to the annular groove.

[0007] Preferably, the insert block is slidably connected to the limiting groove, and the L-plate is slidably connected to the frame.

[0008] Preferably, the threaded rod is rotationally connected to the frame.

[0009] Preferably, the oil cylinder rear cover body includes a polytetrafluoroethylene plate, an aluminum alloy plate is fixedly installed on the bottom of the polytetrafluoroethylene plate, a carbon fiber reinforced plastic plate is fixedly installed on the bottom of the aluminum alloy plate, a rubber plate is fixedly installed on the bottom of the carbon fiber reinforced plastic plate, and a stainless steel plate is fixedly installed on the bottom of the rubber plate.

[0010] Preferably, the thickness of the polytetrafluoroethylene plate, aluminum alloy plate, carbon fiber reinforced plastic plate, rubber plate and stainless steel plate is 4 mm.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] 1. In the present invention, the rotating handle is rotated in the opposite direction in sequence to drive the threaded rod to rotate in the frame. Since the threaded rod is threadedly connected to the L-plate and the L-plate is slidably connected to the frame, the L-plate moves along the frame in a direction away from the cylinder body. After moving a certain distance, the insert block on the inner wall of the clamping ring will move away from the limit groove on the outer wall of the cylinder rear cover body. After moving away, the cylinder rear cover body can be disassembled. This design realizes the rapid disassembly function of the cylinder rear cover body, effectively avoids the need for operators to use tools during the disassembly process, and reduces the working time of operators.

[0013] 2. In the present invention, the oil cylinder rear cover body is composed of five layers of different materials. Among them, the polytetrafluoroethylene plate as the innermost layer has the characteristics of corrosion resistance and low friction coefficient, which can prevent hydraulic oil erosion and reduce friction. The aluminum alloy plate provides support, shares pressure and load. The carbon fiber reinforced plastic plate has extremely high strength and rigidity and can withstand internal pressure and impact force. The rubber plate acts as a buffer to absorb pressure fluctuations and external impact force. The stainless steel plate as the outermost layer provides corrosion resistance and a certain strength to protect the internal structure from the influence of the external environment. These five layers of materials work together to improve the performance and reliability of the oil cylinder rear cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a rear cover structure of a hydraulic cylinder proposed in the utility model;

[0015] Figure 2 This is a schematic diagram of an exploded structure of a rear cover structure of a hydraulic cylinder proposed in the utility model;

[0016] Figure 3 The utility model provides a partial structural schematic diagram of a rear cover structure of a hydraulic oil cylinder.

[0017] Legend: 1. Cylinder rear cover body; 101. Polytetrafluoroethylene plate; 102. Aluminum alloy plate; 103. Carbon fiber reinforced plastic plate; 104. Rubber plate; 105. Stainless steel plate; 2. Cylinder body; 3. Annular groove; 4. Sealing gasket; 5. Pressure ring; 6. Limit groove; 7. Frame; 8. Threaded rod; 9. L-plate; 10. Clamping ring; 11. Insert block; 12. Turning handle. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1: Figure 1-Figure 2 As shown, the utility model provides a technical solution: a rear cover structure of a hydraulic cylinder, comprising a cylinder rear cover body 1 and a cylinder body 2, an annular groove 3 is provided at the bottom of the cylinder body 2, a sealing gasket 4 is slidably connected inside the annular groove 3, a pressure ring 5 is fixedly installed on the top of the cylinder rear cover body 1, a limiting groove 6 is symmetrically provided on the outer wall of the cylinder body 2, a frame 7 is symmetrically fixedly installed on the outer wall of the cylinder body 2, a threaded rod 8 is installed inside the frame 7, an L-plate 9 is threadedly connected to the outer wall of the threaded rod 8, a clamping ring 10 is fixedly installed on the end of the L-plate 9 away from the frame 7, an insert block 11 is fixedly installed on the inner wall of the clamping ring 10, a rotating handle 12 is fixedly installed on the end of the threaded rod 8 away from the cylinder body 2, the pressure ring 5 is slidably connected to the annular groove 3, the insert block 11 is slidably connected to the limiting groove 6, the L-plate 9 is slidably connected to the frame 7, and the threaded rod 8 is rotatably connected to the frame 7.

[0021] In this embodiment, by rotating the rotating handle 12 in the opposite direction in sequence, it drives the threaded rod 8 to rotate in the frame 7. Since the threaded rod 8 is threadedly connected to the L-plate 9, and the L-plate 9 is slidingly connected to the frame 7, the L-plate 9 moves along the frame 7 in the direction away from the cylinder body 2. After moving a certain distance, the insert block 11 on the inner wall of the clamping ring 10 will move away from the limit groove 6 on the outer wall of the cylinder rear cover body 1. After moving away, the cylinder rear cover body 1 can be disassembled. This design realizes the quick disassembly function of the cylinder rear cover body 1, effectively avoids the need for operators to use tools during the disassembly process, and reduces the working time of operators.

[0022] Example 2: Figure 2-Figure 3As shown, the cylinder rear cover body 1 includes a polytetrafluoroethylene plate 101, an aluminum alloy plate 102 is fixedly installed on the bottom of the polytetrafluoroethylene plate 101, a carbon fiber reinforced plastic plate 103 is fixedly installed on the bottom of the aluminum alloy plate 102, a rubber plate 104 is fixedly installed on the bottom of the carbon fiber reinforced plastic plate 103, and a stainless steel plate 105 is fixedly installed on the bottom of the rubber plate 104. The thickness of the polytetrafluoroethylene plate 101, the aluminum alloy plate 102, the carbon fiber reinforced plastic plate 103, the rubber plate 104 and the stainless steel plate 105 are all 4 mm.

[0023] In this embodiment, the cylinder rear cover body 1 is composed of five layers of different materials, among which the polytetrafluoroethylene plate 101 is the innermost layer, which has the characteristics of corrosion resistance and low friction coefficient, can prevent hydraulic oil erosion and reduce friction, the aluminum alloy plate 102 provides support, shares pressure and load, the carbon fiber reinforced plastic plate 103 has extremely high strength and rigidity, and can withstand internal pressure and impact force, the rubber plate 104 acts as a buffer, absorbing pressure fluctuations and external impact force, and the stainless steel plate 105 is the outermost layer, providing corrosion resistance and a certain strength, protecting the internal structure from the influence of the external environment. These five layers of materials work together to improve the performance and reliability of the cylinder rear cover body 1.

[0024] The working principle of this embodiment: During the installation process, first align the oil cylinder rear cover body 1 with the cylinder body 2. After alignment, insert the pressure ring 5 into the annular groove 3. The sealing gasket 4 in the annular groove 3 is in close contact with the pressure ring 5 to form a sealing structure. After the formation, turn the rotating handle 12 in sequence to drive the threaded rod 8 to rotate in the frame 7. Since the threaded rod 8 is threadedly connected to the L plate 9 and the L plate 9 is slidingly connected to the frame 7, the L plate 9 moves along the frame 7 toward the cylinder body 2. After moving a certain distance, the insert 11 on the inner wall of the clamping ring 10 will be inserted into the limit groove 6 on the outer wall of the oil cylinder rear cover body 1. After insertion, the installation of the oil cylinder rear cover body 1 is completed. When it is necessary to disassemble the cylinder rear cover body 1, the rotating handle 12 is rotated in the opposite direction to drive the threaded rod 8 to rotate in the frame 7. Since the threaded rod 8 is threadedly connected to the L plate 9 and the L plate 9 is slidingly connected to the frame 7, the L plate 9 moves along the frame 7 in the direction away from the cylinder body 2. After moving a certain distance, the insert block 11 on the inner wall of the clamping ring 10 will be away from the limit groove 6 on the outer wall of the cylinder rear cover body 1. After moving away, the cylinder rear cover body 1 can be disassembled. This design realizes the quick disassembly function of the cylinder rear cover body 1, effectively avoids the need for operators to use tools during the disassembly process, and reduces the working time of operators. The cylinder rear cover body 1 is composed of five layers of different materials. Among them, the polytetrafluoroethylene plate 101 is the innermost layer, which has the characteristics of corrosion resistance and low friction coefficient, can prevent hydraulic oil erosion and reduce friction. The aluminum alloy plate 102 provides support, shares pressure and load. The carbon fiber reinforced plastic plate 103 has extremely high strength and rigidity and can withstand internal pressure and impact. The rubber plate 104 acts as a buffer to absorb pressure fluctuations and external impact. The stainless steel plate 105 is the outermost layer, providing corrosion resistance and a certain strength to protect the internal structure from the influence of the external environment. These five layers of materials work together to improve the performance and reliability of the cylinder rear cover body 1.

[0025] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A rear cover structure of a hydraulic cylinder, comprising a cylinder rear cover body (1) and a cylinder body (2), characterized in that: The bottom of the cylinder body (2) is provided with an annular groove (3), the interior of the annular groove (3) is slidably connected with a sealing gasket (4), the top of the oil cylinder rear cover body (1) is fixedly installed with a pressure ring (5), the outer wall of the oil cylinder rear cover body (1) is symmetrically provided with a limiting groove (6), the outer wall of the cylinder body (2) is symmetrically fixedly installed with a frame (7), the interior of the frame (7) is provided with a threaded rod (8), the outer wall of the threaded rod (8) is threadedly connected with an L-plate (9), the end of the L-plate (9) away from the frame (7) is fixedly installed with a clamping ring (10), the inner wall of the clamping ring (10) is fixedly installed with an insert (11), and the end of the threaded rod (8) away from the cylinder body (2) is fixedly installed with a rotating handle (12).

2. The rear cover structure of the hydraulic cylinder according to claim 1, characterized in that: The pressure ring (5) is slidably connected to the annular groove (3).

3. The rear cover structure of the hydraulic cylinder according to claim 1, characterized in that: The insert block (11) is slidably connected to the limiting groove (6), and the L-plate (9) is slidably connected to the frame (7).

4. The rear cover structure of the hydraulic cylinder according to claim 1, characterized in that: The threaded rod (8) is rotationally connected to the frame (7).

5. The rear cover structure of the hydraulic cylinder according to claim 1, characterized in that: The oil cylinder rear cover body (1) comprises a polytetrafluoroethylene plate (101), an aluminum alloy plate (102) is fixedly mounted on the bottom of the polytetrafluoroethylene plate (101), a carbon fiber reinforced plastic plate (103) is fixedly mounted on the bottom of the aluminum alloy plate (102), a rubber plate (104) is fixedly mounted on the bottom of the carbon fiber reinforced plastic plate (103), and a stainless steel plate (105) is fixedly mounted on the bottom of the rubber plate (104).

6. The rear cover structure of the hydraulic cylinder according to claim 5, characterized in that: The thickness of the polytetrafluoroethylene plate (101), the aluminum alloy plate (102), the carbon fiber reinforced plastic plate (103), the rubber plate (104) and the stainless steel plate (105) are all 4 mm.

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