Lightweight hydraulic cylinder

Abstract

The lightweight hydraulic cylinder comprises a cylinder body, the bottom end of the cylinder body is fixedly connected with a base, threaded holes are formed in the periphery of the upper surface of the base, and reinforcing rods are arranged on the periphery of the outer wall of the cylinder body. The reinforcing rod is in threaded connection with the base through matching of the threaded hole and the thread, the outer wall of the cylinder body is supported and reinforced, the fixing nut is screwed to separate the reinforcing rod from the base, the reinforcing rod is taken out from the inner wall of the end cover through the positioning hole, the base and the end cover are separated from the cylinder body, and maintenance work is facilitated; the guide sleeve and the dustproof sleeve are arranged on the outer wall of the piston rod in a sleeving mode through the through holes, the connecting position of the piston rod and the cylinder body is wrapped, the dustproof and guiding effects are achieved, dust is prevented from being brought into the cylinder body as much as possible through the dustproof gasket in the telescopic process of the piston rod, and the service life of the hydraulic cylinder is prolonged. The abrasion degree of the piston rod can be reduced through the buffering cushion in the long-time stretching and retracting process of the piston rod, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a lightweight hydraulic cylinder. Background Art

[0002] A lightweight hydraulic cylinder is one that uses new composite materials and optimized design to reduce weight while maintaining or improving performance. The primary purpose of lightweight hydraulic cylinders is to reduce overall weight, lower energy consumption, and improve equipment flexibility and efficiency.

[0003] Existing lightweight hydraulic cylinders are small in size and are subject to increased pressure. Therefore, during long-term use, the hydraulic cylinder is subjected to greater pressure, which will reduce the service life of the hydraulic cylinder. In addition, the piston rod inside the hydraulic rod will wear out more during the long-term back and forth extension and contraction process, which will increase maintenance costs. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a lightweight hydraulic cylinder.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A lightweight hydraulic cylinder includes a cylinder body, a base is provided at the bottom end of the cylinder body, threaded holes are opened around the upper surface of the base, reinforcement rods are provided around the outer wall of the cylinder body, the bottom ends of the reinforcement rods are provided with threaded wires, the top of the cylinder body is provided with an end cover, the end cover is provided with a positioning hole corresponding to the threaded hole, the top of the reinforcement rod is provided with a fixing nut, the outer side wall of the end cover is provided with a pipe joint, and the inner wall of the end cover is provided with a wear-resistant mechanism, a piston rod is passed through the inner wall of the wear-resistant mechanism, the top end of the piston rod is fixedly connected to an ear seat, and an earring is provided on the ear seat.

[0007] Preferably, the bottom end of the reinforcement rod is threadedly connected to the threaded hole through a threaded wire, and the top end of the reinforcement rod passes through the end cover and is threadedly fixed to the fixing nut.

[0008] Preferably, the wear-resistant mechanism includes a dustproof sleeve, the inner wall of the dustproof sleeve is provided with a guide sleeve, the interior of the guide sleeve is provided with a through hole along the axial direction, the inner wall of the through hole is provided with a dustproof gasket, and a buffer pad is provided below the dustproof gasket.

[0009] Preferably, the dustproof sleeve is embedded in the inner wall of the end cover and is coaxially arranged with the end cover, and the bottom end of the dustproof sleeve is connected to the cylinder body.

[0010] Preferably, the guide sleeve is sleeved on the outer wall of the piston rod through a through hole.

[0011] Preferably, the dustproof gaskets are arranged in multiple groups from top to bottom, and the dustproof gaskets are made of nitrile rubber ring components.

[0012] Preferably, the buffer pad is arranged around the inner wall of the through hole, and the buffer pad is made of fluororubber.

[0013] The utility model has the following beneficial effects:

[0014] 1. Compared with the existing technology, this lightweight hydraulic cylinder uses the threaded hole and the threaded wire to thread the reinforcement rod and the base to support and reinforce the outer wall of the cylinder body. The fixing nut is screwed to separate the reinforcement rod from the base, and then the reinforcement rod is taken out through the positioning hole on the inner wall of the end cover. The base and the end cover are separated from the cylinder body, which facilitates maintenance work, relieves the pressure on the hydraulic cylinder, and extends the service life of the hydraulic cylinder.

[0015] 2. Compared with the existing technology, this lightweight hydraulic cylinder has a guide sleeve and a dustproof sleeve installed on the outer wall of the piston rod through a through hole, which wraps the connection between the piston rod and the cylinder body to play a role of dust prevention and guidance. The dustproof gasket can prevent the piston rod from bringing dust into the cylinder body as much as possible during the reciprocating motion. The buffer pad is used to reduce the wear of the piston rod during long-term work, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the rear structure of a lightweight hydraulic cylinder proposed in the utility model;

[0017] Figure 2 This is a schematic diagram of the installation of the end cover, reinforcement rod and base proposed in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the reinforcement rod proposed in the utility model;

[0019] Figure 4 This is a structural diagram of the wear-resistant mechanism proposed in the utility model.

[0020] Legend:

[0021] 1. Cylinder body; 2. Base; 3. Threaded hole; 4. Reinforcement rod; 5. Threaded wire; 6. End cover; 7. Positioning hole; 8. Fixing nut; 9. Pipe joint; 10. Wear-resistant mechanism; 101. Dust cover; 102. Guide sleeve; 103. Through hole; 104. Dustproof gasket; 105. Buffer pad; 11. Piston rod; 12. Ear seat; 13. Earring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Reference Figure 1-4 The utility model provides a lightweight hydraulic cylinder: comprising a cylinder body 1, a base 2 is installed at the bottom end of the cylinder body 1, threaded holes 3 are opened around the upper surface of the base 2, and reinforcing rods 4 are installed around the outer wall of the cylinder body 1, and the bottom end of the reinforcing rod 4 is provided with a threaded wire 5. The top end of the cylinder body 1 is movably connected with an end cover 6, and the end cover 6 is provided with a positioning hole 7 corresponding to the threaded hole. The reinforcing rod 4 is threadedly connected to the base 2 through the cooperation of the threaded hole 3 and the threaded wire 5 to support and reinforce the outer wall of the cylinder body 1. The reinforcing rod 4 is fixed to the base 2 by screwing the fixing nut 8. Separate, take out the reinforcement rod 4 through the positioning hole 7 on the inner wall of the end cover 6, separate the base 2 and the end cover 6 from the cylinder body 1, facilitate maintenance work, and relieve the pressure on the hydraulic cylinder. The top of the reinforcement rod is provided with a fixing nut 8, the outer wall of the end cover 6 is provided with a pipe joint 9, and the inner wall of the end cover 6 is provided with a wear-resistant mechanism 10. The inner wall of the wear-resistant mechanism 10 is penetrated by a piston rod 11, and the top of the piston rod 11 is fixedly connected to an ear seat 12, and an earring 13 is provided on the ear seat 12. The top of the reinforcement rod 4 passes through the end cover 6 and is screwed to the fixing nut 8.

[0024] The wear-resistant mechanism 10 includes a dust cover 101, the inner wall of the dust cover 101 is provided with a guide sleeve 102, the interior of the guide sleeve 102 is provided with a through hole 103 along the axial direction, the inner wall of the through hole 103 is provided with a dustproof gasket 104, and a buffer pad 105 is provided under the dustproof gasket 104. The guide sleeve 102 and the dust cover 101 are sleeved on the outer wall of the piston rod 11 through the through hole 103 to wrap the connection between the piston rod 11 and the cylinder body 1, playing a role of dustproof and guiding. The dustproof gasket 104 is used to prevent dust from entering the cylinder body 1 as much as possible during the movement of the piston rod 11. The buffer pad 105 is used to reduce the wear of the piston rod 11 during long-term operation. The dust cover 101 is cylindrical. The dust cover 101 is embedded in the inner wall of the end cover 6 and is coaxial with the end cover. The bottom end of the dust cover 101 is connected to the cylinder body 1. There are 6 groups of dustproof gaskets 104, and the dustproof gaskets 104 are made of nitrile rubber ring components with strong sealing and durability. The buffer pad 105 is arranged around the inner wall of the through hole 103. The buffer pad 105 is made of fluororubber components with excellent oil resistance and chemical corrosion resistance, and can maintain stable performance under extreme conditions.

[0025] Working principle: The reinforcement rod 4 is threadedly connected to the base 2 through the cooperation of the threaded hole 3 and the threaded wire 5 to support and reinforce the outer wall of the cylinder body 1, and the fixing nut 8 is screwed to separate the reinforcement rod 4 from the base 2, and then the reinforcement rod 4 is taken out through the positioning hole 7, and the base 2 and the end cover 6 are separated from the cylinder body 1 to facilitate maintenance work and relieve the pressure on the hydraulic cylinder. The guide sleeve 102 and the dustproof sleeve 101 are put on the outer wall of the piston rod 11 through the through hole 103 to wrap the connection between the piston rod 11 and the cylinder body 1 to play a role of dust prevention and guidance. The dustproof gasket 104 is used to prevent dust from entering the cylinder body 1 as much as possible during the movement of the piston rod 11, and the buffer pad 105 is used to reduce the wear of the piston rod 11 during long-term operation.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lightweight hydraulic cylinder, comprising a cylinder body (1), characterized in that: The bottom end of the cylinder body (1) is provided with a base (2), and the upper surface of the base (2) is provided with threaded holes (3) all around. The outer wall of the cylinder body (1) is provided with reinforcement rods (4), and the bottom end of the reinforcement rods (4) is provided with threaded wires (5). The top end of the cylinder body (1) is provided with an end cover (6), and the end cover (6) is provided with a positioning hole (7) corresponding to the threaded hole. The top end of the reinforcement rod (4) is provided with a fixing nut (8), and the outer side wall of the end cover (6) is provided with a pipe joint (9), and the inner wall of the end cover (6) is provided with a wear-resistant mechanism (10), and the inner wall of the wear-resistant mechanism (10) is penetrated by a piston rod (11), and the top end of the piston rod (11) is fixedly connected to an ear seat (12), and an earring (13) is provided on the ear seat (12).

2. A lightweight hydraulic cylinder according to claim 1, characterized in that: The bottom end of the reinforcing rod (4) is threadedly connected to the threaded hole (3) through a threaded wire (5), and the top end of the reinforcing rod (4) passes through the end cover (6) and is threadedly fixed to the fixing nut (8).

3. A lightweight hydraulic cylinder according to claim 1, characterized in that: The wear-resistant mechanism (10) comprises a dustproof sleeve (101), the inner wall of the dustproof sleeve (101) is provided with a guide sleeve (102), the interior of the guide sleeve (102) is provided with a through hole (103) along the axial direction, the inner wall of the through hole (103) is provided with a dustproof gasket (104), and a buffer pad (105) is provided below the dustproof gasket (104).

4. A lightweight hydraulic cylinder according to claim 3, characterized in that: The dustproof sleeve (101) is embedded in the inner wall of the end cover (6) and is coaxially arranged with the end cover (6), and the bottom end of the dustproof sleeve (101) is communicated with the cylinder body (1).

5. The lightweight hydraulic cylinder according to claim 3, characterized in that: The guide sleeve (102) is sleeved on the outer wall of the piston rod (11) through the through hole (103).

6. The lightweight hydraulic cylinder according to claim 3, characterized in that: The dustproof gaskets (104) are arranged in multiple groups from top to bottom, and the dustproof gaskets (104) are made of nitrile rubber ring components.

7. The lightweight hydraulic cylinder according to claim 3, characterized in that: The buffer pad (105) is arranged around the inner wall of the through hole (103), and the buffer pad (105) is made of fluororubber.

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