Automatic compensation type oil buffer

Abstract

The utility model relates to the technical field of oil pressure buffers, in particular to an automatic compensation type oil pressure buffer which comprises a cylinder body, the upper end of the cylinder body is in threaded connection with a first end cover, a piston rod penetrates through the first end cover, an anti-collision cap and a piston are installed at the upper end and the lower end of the piston rod respectively, and the lower end of the cylinder body is in threaded connection with a second end cover. A spring is arranged between the second end cover and the piston, an oil return hole is formed in the upper position of the side wall of the cylinder body, a plurality of oil discharge holes are formed in the lower position of the side wall of the cylinder body at equal intervals, the oil return hole and the oil discharge holes are in threaded connection with connectors respectively, and the oil return hole is connected with an oil pipe through the connectors. A plurality of branch pipes connected with other connectors are arranged at the tail end of the oil pipe. The oil pipe connector has the advantages that the oil return hole, the oil discharge hole and the oil pipe can be conveniently communicated in a sealed mode through the connector, the oil return hole and the oil discharge hole are convenient to manufacture, cost is low, the oil pipe can be detached and cleaned when blocked, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pressure buffers, in particular to an automatic compensation type oil pressure buffer. Background Art

[0002] The hydraulic buffer is designed to reduce vibration and noise in the operation of automated machinery. The moving parts of the machinery use lubricating oil to reduce friction, so that after the power driving the parts on the machinery stops moving, the parts will still move a certain distance under the action of inertia, so that the moving parts will collide with other parts. The hydraulic buffer can make the moving parts stop smoothly. The utility model is an automatic compensation type hydraulic buffer.

[0003] The existing hydraulic buffer is usually provided with a connecting oil return hole, oil drain hole and oil passage on the inner wall of the cylinder body. Since the oil holes and oil passages are on the inner wall of the cylinder body, it is more troublesome to make them. In addition, since the oil passage is located inside the cylinder body, it is not easy to clear it when the oil passage is blocked. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is that the oil holes and oil passages of the existing oil pressure buffer are complicated to manufacture, and when the oil passages are blocked, it is inconvenient to dredge them.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: an automatic compensating oil pressure buffer, including a cylinder body, an end cover one is threadedly connected to the upper end of the cylinder body, a piston rod passes through and is slidably connected to the end cover one, an anti-collision cap and a piston are respectively installed on the upper and lower ends of the piston rod, an end cover two is threadedly connected to the lower end of the cylinder body, a spring is arranged between the end cover two and the piston, an oil return hole is arranged at the upper position of the side wall of the cylinder body, and a plurality of oil drain holes are equidistantly arranged at the lower position of the side wall of the cylinder body, a connector is threadedly connected to the oil return hole and the oil drain hole, the oil return hole is connected to an oil pipe through the connector, and a plurality of branch pipes connected to other connectors are arranged at the end of the oil pipe.

[0008] Furthermore, an internal threaded pipe is provided on the outside of the oil return hole and the oil drain hole, the connecting head includes an external threaded pipe, a hexagonal nut is provided in the middle of the external threaded pipe, the two ends of the external threaded pipe are respectively threadedly connected to the internal threaded pipe and the end of the oil pipe, and sealing gaskets are provided on both sides of the hexagonal nut which are sleeved on the external threaded pipe.

[0009] Furthermore, the upper and lower ends of the cylinder body are each provided with a threaded connection port with an inner diameter larger than its inner diameter, a pair of the threaded connection ports are respectively threadedly connected to the first end cover and the second end cover, and the inner ends of the threaded connection ports are respectively provided with sealing rings.

[0010] Furthermore, the lower end of the piston and the upper end of the second end cover are respectively provided with a first connecting groove and a second connecting groove which are clamped with the spring.

[0011] Furthermore, a plurality of heat sinks are provided on the outer side of the cylinder body, and a plurality of connecting ears are provided on the outer side of the second end cover.

[0012] 3. Beneficial Effects

[0013] The advantages of the utility model compared with the prior art are:

[0014] 1. The oil return hole, oil drain hole and oil pipe are sealed and connected through the connector. The oil return hole and oil drain hole are easy to make and have low cost. When the oil pipe is blocked, it is easy to disassemble and clean, and it is easy to use.

[0015] 2. The lower end of the piston and the upper end of the second end cover are respectively provided with a connecting groove 1 and a connecting groove 2 which are engaged with the spring, so as to limit the spring and prevent the spring from being distorted.

[0016] 3. There are multiple heat sinks on the outside of the cylinder to facilitate heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall internal structure diagram of the utility model.

[0018] Figure 2 It is the overall structure diagram of the utility model.

[0019] Figure 3 It is a cross-sectional structural diagram of a cylinder body of the present utility model.

[0020] Figure 4 It is a structural diagram of a connector of the present utility model.

[0021] Figure 5 It is a second structural diagram of the end cover of the utility model.

[0022] Figure 6 It is a piston structure diagram of the utility model.

[0023] As shown in the figure: 1. Cylinder body; 101. Oil return hole; 102. Oil drain hole; 103. Threaded connection port; 2. End cover 1; 3. Piston rod; 4. Anti-collision cap; 5. Piston; 501. Connection groove 1; 6. End cover 2; 601. Connection groove 2; 602. Connection ear; 7. Spring; 8. Connector; 9. Oil pipe; 901. Branch pipe; 10. Internally threaded pipe; 11. Externally threaded pipe; 12. Hexagonal nut; 13. Sealing gasket; 14. Sealing ring; 15. Heat sink. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] Embodiment 1

[0026] Combined with Figure 1 and attached Figure 2 , an automatic compensating oil pressure buffer, comprising a cylinder body 1, an end cover 2 is threadedly connected to the upper end of the cylinder body 1, a piston rod 3 passes through and is slidably connected to the end cover 2, an anti-collision cap 4 and a piston 5 are respectively installed on the upper and lower ends of the piston rod 3, an end cover 6 is threadedly connected to the lower end of the cylinder body 1, a spring 7 is arranged between the end cover 6 and the piston 5, an oil return hole 101 is arranged at the upper position of the side wall of the cylinder body 1, and a plurality of oil discharge holes 102 are equidistantly arranged at the lower position of the side wall of the cylinder body 1, a connector 8 is threadedly connected to each of the oil return hole 101 and the oil discharge hole 102, the oil return hole 101 is connected to an oil pipe 9 through the connector 8, and a plurality of branch pipes 901 connected to other connectors 8 are arranged at the end of the oil pipe 9.

[0027] Combined with the above structure, when the piston rod 3 is subjected to the external force and moves downward, the piston 5 will move downward and squeeze the hydraulic oil in the cylinder body 1. The hydraulic oil will be discharged from the oil discharge hole 102 after being pressurized, and enter the upper end cavity of the piston 5 from the oil return hole 101 through the oil pipe 9. When the external force disappears, the piston rod 3 rebounds under the action of the spring 7. At this time, the hydraulic oil will flow back to the cavity corresponding to the oil discharge hole 102 through the oil return hole 101, completing the entire buffering process.

[0028] Combined with Figure 3 and attached Figure 4 An internal threaded tube 10 is provided on the outside of the oil return hole 101 and the oil drain hole 102. The connector 8 includes an external threaded tube 11. A hexagonal nut 12 is provided in the middle of the external threaded tube 11. Both ends of the external threaded tube 11 are threadedly connected with the internal threaded tube 10 and the end of the oil pipe 9 respectively. Sealing gaskets 13 which are sleeved on the external threaded tube 11 are provided on both sides of the hexagonal nut 12.

[0029] Combined with the above structure, the oil return hole 101, the oil drain hole 102 and the oil pipe 9 are sealed and connected through the connector 8. The oil return hole 101 and the oil drain hole 102 are easy to manufacture and have low cost. The oil pipe 9 is easy to disassemble and clean when it is blocked, and is easy to use.

[0030] Combined with Figure 3 , Attachment Figure 5 and attached Figure 6The upper and lower ends of the cylinder body 1 are respectively provided with threaded connection ports 103 with an inner diameter larger than its inner diameter. A pair of the threaded connection ports 103 are respectively threadedly connected to the end cover 1 2 and the end cover 2 6. The inner ends of the threaded connection ports 103 are respectively provided with sealing rings 14 to ensure that the end cover 1 2 and the end cover 2 6 are well sealed to prevent oil leakage.

[0031] Combined with Figure 5 and attached Figure 6 The lower end of the piston 5 and the upper end of the second end cover 6 are respectively provided with a connecting groove 501 and a connecting groove 601 which are engaged with the spring 7, so as to limit the spring 7 and prevent the spring 7 from being distorted.

[0032] Combined with Figure 2 , Attachment Figure 3 The outer side of the cylinder body 1 is provided with a plurality of heat sinks 15 for heat dissipation; the outer side of the end cover 6 is provided with a plurality of connecting ears 602 for bolt connection to other equipment.

[0033] The specific usage is as follows:

[0034] When the oil pipe 9 is blocked, the hexagonal nut 12 is rotated by a tool to separate the external threaded tubes 11 on both sides from the internal threaded tube 10 and the end of the oil pipe 9, so as to facilitate unblocking the oil pipe 9 and replacing the oil, which is convenient to use.

[0035] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An automatic compensating oil pressure buffer, comprising a cylinder body (1), the upper end of the cylinder body (1) is threadedly connected to an end cover (2), a piston rod (3) passes through and is slidably connected to the end cover (2), and an anti-collision cap (4) and a piston (5) are respectively installed at the upper and lower ends of the piston rod (3), characterized in that: The lower end of the cylinder body (1) is threadedly connected to an end cover (6); a spring (7) is provided between the end cover (6) and the piston (5); an oil return hole (101) is provided at an upper position of the side wall of the cylinder body (1); a plurality of oil discharge holes (102) are equidistantly provided at a lower position of the side wall of the cylinder body (1); a connector (8) is threadedly connected to each of the oil return hole (101) and the oil discharge hole (102); the oil return hole (101) is connected to an oil pipe (9) via the connector (8); and a plurality of branch pipes (901) connected to other connectors (8) are provided at the end of the oil pipe (9).

2. The automatic compensating oil pressure buffer according to claim 1, characterized in that: An internally threaded tube (10) is provided outside the oil return hole (101) and the oil discharge hole (102); the connector (8) comprises an externally threaded tube (11); a hexagonal nut (12) is provided in the middle of the externally threaded tube (11); both ends of the externally threaded tube (11) are respectively threadedly connected to the internally threaded tube (10) and the end of the oil pipe (9); sealing washers (13) sleeved on the externally threaded tube (11) are provided on both sides of the hexagonal nut (12).

3. The automatic compensating oil pressure buffer according to claim 1, characterized in that: The upper and lower ends of the cylinder body (1) are each provided with a threaded connection port (103) whose inner diameter is larger than the inner diameter thereof; a pair of the threaded connection ports (103) are respectively threadedly connected to the first end cover (2) and the second end cover (6); and the inner ends of the threaded connection ports (103) are respectively provided with sealing rings (14).

4. The automatic compensating oil pressure buffer according to claim 1, characterized in that: The lower end of the piston (5) and the upper end of the second end cover (6) are respectively provided with a first connecting groove (501) and a second connecting groove (601) which are clamped with the spring (7).

5. The automatic compensating oil pressure buffer according to claim 1, characterized in that: The outer side of the cylinder body (1) is provided with a plurality of cooling fins (15), and the outer side of the second end cover (6) is provided with a plurality of connecting ears (602).

Images