Buffer cylinder

Abstract

The buffering air cylinder comprises a cylinder barrel, an air cylinder piston rod is arranged in the cylinder barrel, an air cylinder connector is arranged at the front end, extending out of the cylinder barrel, of the outer end of the air cylinder piston rod, the inner end of the air cylinder piston rod is connected with an air cylinder piston moving front and back along the inner wall of the cylinder barrel, and a front buffering sleeve and a rear buffering sleeve are arranged on the front side and the rear side of the air cylinder piston. Two buffering oil cylinders which are connected with the cylinder barrel and filled with hydraulic oil are arranged at the front end of the cylinder barrel, buffering oil cylinder small rods are arranged in the buffering oil cylinders, long pressing plates are arranged at the ends, extending out of the buffering oil cylinders, of the buffering oil cylinder small rods, and the centers of the long pressing plates are arranged on air cylinder piston rods. An oil cylinder piston moving back and forth along the inner wall of the buffer oil cylinder is arranged on a buffer oil cylinder small rod in the buffer oil cylinder in a sleeved mode, and two damping small holes are formed in the oil cylinder piston. The two buffer oil cylinders are arranged on the basis of an original air cylinder, the air cylinder is buffered when the air cylinder moves by means of the characteristics of high viscosity and large buffer force of hydraulic oil, and the buffer force of the air cylinder is improved.

Description

Technical Field

[0001] This utility model relates to the field of cylinder technology, and more specifically to a buffer cylinder. Background Technology

[0002] A cylinder is a cylindrical metal component that guides a piston in linear reciprocating motion within the cylinder. It is a pneumatic actuator that converts the pressure energy of compressed gas into mechanical energy. After the chemical energy of gasoline or diesel fuel is converted into heat energy, the gas mixture inside the sealed cylinder burns and expands, thereby pushing the piston to do work and converting heat energy into mechanical energy.

[0003] When the piston moves, the buffer sleeve and buffer seal close the main exhaust passage, thus forming a sealed air chamber, or buffer chamber, on one side of the piston. The gas in this buffer chamber is discharged through the buffer valve, avoiding or reducing the impact of the piston on the cylinder head, thereby achieving the purpose of buffering. However, this pneumatic buffering method has a short buffering stroke, and the buffering effect is relatively poor when the object being pulled is heavy. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a buffer cylinder that uses two sets of buffers to improve the buffering effect of the cylinder.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0006] A buffer cylinder includes a cylinder barrel, a cylinder piston rod disposed inside the cylinder barrel, a cylinder connector disposed at the front end of the cylinder piston rod extending out of the cylinder barrel, a cylinder piston connected to the inner end of the cylinder piston rod that moves back and forth along the inner wall of the cylinder barrel, and front and rear buffer sleeves disposed on the front and rear sides of the cylinder piston for buffering the cylinder; two buffer cylinders containing hydraulic oil are disposed at the front end of the cylinder barrel, and a buffer cylinder rod disposed inside the buffer cylinder, a long pressure plate disposed at the end of the buffer cylinder rod extending out of the buffer cylinder, the center of the long pressure plate being disposed on the cylinder piston rod, and a cylinder piston that moves back and forth along the inner wall of the buffer cylinder is sleeved on the buffer cylinder rod inside the buffer cylinder, and two damping holes are opened on the cylinder piston for hydraulic oil to flow through.

[0007] To further optimize the technical solution, a buffer cylinder gasket is provided at the front end of the buffer cylinder.

[0008] To further optimize the technical solution, a small rod sealing ring is provided between the buffer cylinder gasket and the buffer cylinder rod to improve the sealing performance between the buffer cylinder and the buffer cylinder gasket.

[0009] To further optimize the technical solution, a guide ring for guiding the buffer cylinder rod is provided between the buffer cylinder gasket and the buffer cylinder rod.

[0010] To further optimize the technical solution, a pressure ring is provided on the inner side of the long pressure plate, and the inner end of the pressure ring is connected to the end of the buffer cylinder rod.

[0011] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0012] The buffer cylinder provided by this utility model is based on the original cylinder and is equipped with two sets of buffer oil cylinders. By utilizing the high viscosity and large buffering force of hydraulic oil, the cylinder is buffered when it moves, thereby increasing the buffering force of the cylinder and thus increasing the buffering length of the oil cylinder, thereby improving the safety of the cylinder during use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A;

[0015] Figure 3 This is a schematic diagram of the structure of the hydraulic cylinder piston of this utility model.

[0016] The components are: 1. Cylinder barrel, 2. Cylinder piston rod, 3. Cylinder piston, 4. Front buffer sleeve, 5. Rear buffer sleeve, 6. Front cylinder head, 7. Buffer cylinder gasket, 8. Buffer cylinder rod, 9. Cylinder piston, 10. Long pressure plate, 11. Pressure ring, 12. Cylinder connector, 13. Rod sealing ring, 14. Rod guide ring, 15. Damping orifice. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Buffer cylinder, combined Figures 1 to 3 As shown, it includes a cylinder barrel 1 and a front cylinder head 6 located at the front end of the cylinder barrel 1. A cylinder piston rod 2 is provided inside the cylinder barrel 1. A cylinder connector 12 is provided at the end of the cylinder piston rod 2 that extends out of the front cylinder head 6. A cylinder piston 3 is provided inside the cylinder piston rod 2. The cylinder piston 3 can move back and forth along the inner wall of the cylinder barrel 1. A front buffer sleeve 4 and a rear buffer sleeve 5 are provided on the front and rear sides of the cylinder piston 3 to buffer the cylinder.

[0019] Two buffer cylinders are installed on the front cylinder head 6. The buffer cylinders are filled with hydraulic oil. The hydraulic oil has high viscosity and strong buffering force, thereby improving the buffering effect of the cylinder.

[0020] The buffer cylinder is equipped with a buffer cylinder rod 8. A long pressure plate 10 is provided at the end of the buffer cylinder rod 8 that extends out of the buffer cylinder. The center of the long pressure plate 10 is located on the cylinder piston rod 2. A cylinder piston 9 is sleeved on the buffer cylinder rod 8 inside the buffer cylinder. The cylinder piston 9 moves back and forth along the inside of the buffer cylinder. Two damping holes 15 are opened on the cylinder piston 9 for the flow of hydraulic oil.

[0021] The long pressure plate 10 has a pressure ring 11 inside, and the inner end of the pressure ring 11 is connected to the end of the buffer cylinder rod 8.

[0022] A buffer cylinder gasket 7 is provided at the front end of the buffer cylinder, and a rod sealing ring 13 is provided between the buffer cylinder gasket 7 and the buffer cylinder rod 8 to improve the sealing performance between the buffer cylinder and the buffer cylinder gasket, and to prevent the hydraulic oil in the buffer cylinder from flowing out from the buffer cylinder gasket.

[0023] A rod guide ring 14 is provided between the buffer cylinder gasket 7 and the buffer cylinder rod 8 to guide the buffer cylinder rod when it moves left and right, thereby improving the smoothness of movement.

[0024] In operation, when the cylinder piston rod extends, it drives the buffer cylinder rod to extend at the extended end. Hydraulic oil in the buffer cylinder flows from the outside through the damping orifice on the piston to the inside. Due to the high viscosity of the hydraulic oil, the buffering force is relatively large, thus achieving buffering. When the cylinder piston rod retracts, at the retracted end, the long pressure plate presses down on the buffer cylinder rod through a pressure ring. Hydraulic oil in the buffer cylinder flows from the inside through the damping orifice on the piston to the outside, achieving buffering.

Claims

1. A buffer cylinder, comprising a cylinder barrel (1) and a front cylinder cover (6) disposed at the front end of the cylinder barrel (1), a cylinder piston rod (2) disposed inside the cylinder barrel (1), a cylinder connector (12) disposed at the end of the cylinder piston rod (2) extending out of the front cylinder cover (6), a cylinder piston (3) connected to the inner end of the cylinder piston rod (2) and moving back and forth along the inner wall of the cylinder barrel (1), and a front buffer sleeve (4) and a rear buffer sleeve (5) disposed on the front and rear sides of the cylinder piston (3) for buffering the cylinder; characterized in that: The front cylinder head (6) is provided with two buffer cylinders connected to the cylinder barrel (1) and filled with hydraulic oil. A buffer cylinder rod (8) is provided inside the buffer cylinder. A long pressure plate (10) is provided at the end of the buffer cylinder rod (8) that extends out of the buffer cylinder. The center of the long pressure plate (10) is located on the cylinder piston rod (2). A cylinder piston (9) that moves back and forth along the inner wall of the buffer cylinder is sleeved on the buffer cylinder rod (8) inside the buffer cylinder. Two damping holes (15) are opened on the cylinder piston (9) for hydraulic oil to flow through.

2. The buffer cylinder according to claim 1, characterized in that: The front end of the buffer cylinder is provided with a buffer cylinder gasket (7).

3. The buffer cylinder according to claim 2, characterized in that: A small rod sealing ring (13) is provided between the buffer cylinder gasket (7) and the buffer cylinder rod (8) to improve the sealing performance between the buffer cylinder and the buffer cylinder gasket.

4. The buffer cylinder according to claim 2, characterized in that: A rod guide ring (14) is provided between the buffer cylinder gasket (7) and the buffer cylinder rod (8) to guide the buffer cylinder rod (8).

5. The buffer cylinder according to claim 1, characterized in that: A pressure ring (11) is provided on the inner side of the long pressure plate (10), and the inner end of the pressure ring (11) is connected to the end of the buffer cylinder rod (8).

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