CN216691652U

CN216691652U - Double-shaft synchronous hydraulic oil cylinder

Info

Publication number: CN216691652U
Application number: CN202220152274.2U
Authority: CN
Inventors: 胡国明
Original assignee: Jiangmen Zhihui Hydraulic Technology Co ltd
Current assignee: Jiangmen Zhihui Hydraulic Technology Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-06-07
Anticipated expiration: 2032-01-19

Abstract

The utility model belongs to the technical field of hydraulic cylinders, in particular to a double-shaft synchronous hydraulic cylinder, which aims at solving the problems that a plurality of hydraulic cylinders are easy to occupy large area and inconvenient to maintain and replace pistons in the hydraulic cylinders when action points needed in the existing working environment are close and need to be synchronous, and the prior art proposes the following scheme that the hydraulic cylinder comprises a base, wherein the outer wall of the base is fixedly connected with a cylinder body, the interior of the cylinder body is slidably connected with a piston sheet, the outer wall of the piston sheet is provided with a round hole, the inner wall of the round hole is fixedly connected with a piston rod, one end of the piston rod is fixedly connected with a screw rod, and the outer wall of the screw rod is in threaded connection with a nut, the replacement and the maintenance of the device are convenient.

Description

Double-shaft synchronous hydraulic oil cylinder

Technical Field

The utility model relates to the technical field of hydraulic oil cylinders, in particular to a double-shaft synchronous hydraulic oil cylinder.

Background

The hydraulic oil cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the piston.

In the prior art, because action points needed in a working environment are close and need to be synchronized, a plurality of hydraulic oil cylinders are placed, so that the occupied area is large, and the pistons in the hydraulic oil cylinders are not convenient to maintain and replace, the double-shaft synchronous hydraulic oil cylinder is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that a plurality of hydraulic oil cylinders are easy to occupy large area and the pistons in the hydraulic oil cylinders are inconvenient to maintain and replace because action points required in a working environment are close and need to be synchronized, and provides a double-shaft synchronous hydraulic oil cylinder.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a synchronous hydraulic cylinder of biax, includes the base, the outer wall fixedly connected with cylinder body of base, the inside sliding connection of cylinder body has the piston piece, the round hole has been seted up to the outer wall of piston piece, the inner wall fixedly connected with piston rod of round hole, the one end fixedly connected with screw rod of piston rod, the outer wall threaded connection of screw rod has the nut, the outer wall cover of screw rod is equipped with the piston, two return grooves have been seted up to the outer wall of cylinder body, and the equal sliding connection in inner wall in two return grooves has the sealing washer, the outer wall fixedly connected with cylinder cap of sealing washer, the outer wall of cylinder cap is equipped with sealing mechanism.

Preferably, sealing mechanism includes the jar cap, the outer wall of cylinder cap and the outer wall fixed connection of jar cap, the circular slot has been seted up to the outer wall of jar cap, the inner wall fixedly connected with sealing ring of circular slot, the inner wall of sealing ring and the outer wall sliding connection of piston rod, the outer wall of jar cap is seted up flutedly, and the inner wall fixedly connected with dust ring of recess, the inner wall of dust ring and the outer wall sliding connection of piston rod, the first oil inlet of outer wall fixedly connected with and the second oil inlet of cylinder body avoid the dust to get into the cylinder body through setting up the dust ring.

Preferably, two ring channels have been seted up to the outer wall of piston, and the inner wall of two ring channels is overlapped respectively and is equipped with ring and the antifouling ring of wearing to wear, increases the life of piston through setting up the ring of wearing to wear.

Preferably, four assembly holes are formed in the outer walls of the cylinder cover and the cylinder body, bolts are connected to the inner walls of the four assembly holes in a threaded mode, and the cylinder cover is fixed in position through the bolts.

Preferably, the outer walls of the cylinder cap and the cylinder cover are provided with sliding holes, and the inner walls of the sliding holes are in sliding connection with the outer wall of the piston rod.

Preferably, the outer wall of the cylinder body is provided with two V-shaped holes, and the first oil inlet and the second oil inlet are respectively communicated with the two V-shaped holes.

Preferably, four mounting holes are formed in the outer wall of the base, and screws are connected to the inner walls of the four mounting holes in a threaded mode.

Compared with the prior art, the utility model has the advantages that:

this scheme gets into the cylinder body with hydraulic oil through first oil inlet and second oil inlet, makes piston and piston rod carry out reciprocating motion, when changing and maintaining the piston, removes the rigidity of cylinder cap through rotating four bolts, takes out the cylinder cap through returning type groove and sealing washer, takes out the piston rod even piston, rotates the nut and takes off the piston, conveniently changes and maintains it.

Drawings

FIG. 1 is a schematic perspective view of a dual-axis synchronous hydraulic cylinder according to the present invention;

FIG. 2 is a schematic cross-sectional structure diagram of a biaxial synchronous hydraulic cylinder according to the present invention;

FIG. 3 is an enlarged schematic structural view of a portion A in FIG. 1 of a biaxial synchronous hydraulic cylinder according to the present invention;

fig. 4 is a schematic side view of a biaxial synchronous hydraulic cylinder according to the present invention.

In the figure: 1. a base; 2. a cylinder body; 3. a piston plate; 4. a piston; 5. a screw; 6. a nut; 7. an antiwear ring; 8. an antifouling ring; 9. a piston rod; 10. a cylinder cover; 11. a bolt; 12. a seal ring; 13. a cylinder cap; 14. a seal ring; 15. a dust ring; 16. a first oil inlet; 17. a second oil inlet.

Detailed Description

Shown in figures 1-4, which relates to a double-shaft synchronous hydraulic cylinder, comprising a base 1, wherein the outer wall of the base 1 is fixedly connected with a cylinder body 2, the inside of the cylinder body 2 is slidably connected with a piston sheet 3, the outer wall of the piston 4 is provided with two annular grooves, the inner walls of the two annular grooves are respectively sleeved with an anti-wear ring 7 and an anti-fouling ring 8, under the action of the anti-wear ring 7, the abrasion of the piston 4 is reduced, the outer wall of the piston sheet 3 is provided with a round hole, the inner wall of the round hole is fixedly connected with a piston rod 9, the piston rod 9 reciprocates through the piston sheet 3, one end of the piston rod 9 is fixedly connected with a screw rod 5, the outer wall of the screw rod 5 is in threaded connection with a nut 6, the outer wall of the screw rod 5 is sleeved with the piston 4, the outer wall of the cylinder body 2 is provided with two return grooves, the inner walls of the two return grooves are both slidably connected with a sealing ring 12, the sealing ring 12 improves the sealing performance of the cylinder cover 10, the outer wall of the sealing ring 12 is fixedly connected with the cylinder cover 10, four pilot holes have all been seted up with the outer wall of cylinder body 2 to cylinder cap 10, and the equal threaded connection of inner wall of four pilot holes has bolt 11, and the outer wall of cylinder cap 10 is equipped with sealing mechanism.

As shown in fig. 2 and 3, the sealing mechanism includes a cylinder cap 13, sliding holes are formed on the outer walls of the cylinder cap 13 and the cylinder cover 10, the inner wall of the sliding hole is slidably connected with the outer wall of the piston rod 9, the outer wall of the cylinder cover 10 is fixedly connected with the outer wall of the cylinder cap 13, a circular groove is formed on the outer wall of the cylinder cap 13, a sealing ring 14 is fixedly connected with the inner wall of the circular groove, the inner wall of the sealing ring 14 is slidably connected with the outer wall of the piston rod 9, a groove is formed on the outer wall of the cylinder cap 13, a dust ring 15 is fixedly connected with the inner wall of the groove, under the action of the dust ring 15, dust is prevented from entering the cylinder body 1, the inner wall of the dust ring 15 is slidably connected with the outer wall of the piston rod 9, two V-shaped holes are formed on the outer wall of the cylinder body 2, a first oil inlet 16 and a second oil inlet 17 are respectively communicated with the two V-shaped holes, a first oil inlet 16 and a second oil inlet 17 are fixedly connected with the outer wall of the cylinder body 2, four mounting holes are formed on the outer wall of the base 1, the inner walls of the four mounting holes are in threaded connection with screws.

The working principle is as follows: get into cylinder body 2 with hydraulic oil through first oil inlet 16 and second oil inlet 17 in, make piston 4 carry out reciprocating motion, thereby make piston rod 9 carry out reciprocating motion through piston piece 3, simultaneously under the effect of ring 7 that wear-resistants, reduce the wearing and tearing of piston 4, under antifouling ring 8's effect, avoid piston 4 under the running condition, the operation of inside spot operation piston 4, when changing and maintaining piston 4, it removes the rigidity of cylinder cap 10 to rotate four bolts 11, take out cylinder cap 10 through returning type groove and sealing washer 12, take out piston rod 9 even piston 4 earlier, rotate nut 6 through screw rod 5, take off piston 4, conveniently change and maintain it.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. The utility model provides a synchronous hydraulic cylinder of biax, includes base (1), its characterized in that, outer wall fixedly connected with cylinder body (2) of base (1), the inside sliding connection of cylinder body (2) has piston piece (3), the round hole has been seted up to the outer wall of piston piece (3), the inner wall fixedly connected with piston rod (9) of round hole, the one end fixedly connected with screw rod (5) of piston rod (9), the outer wall threaded connection of screw rod (5) has nut (6), the outer wall cover of screw rod (5) is equipped with piston (4), two return grooves have been seted up to the outer wall of cylinder body (2), and the equal sliding connection in inner wall in two return grooves has sealing washer (12), the outer wall fixedly connected with cylinder cap (10) of sealing washer (12), the outer wall of cylinder cap (10) is equipped with sealing mechanism.

2. The double-shaft synchronous hydraulic oil cylinder according to claim 1, characterized in that the sealing mechanism comprises a cylinder cap (13), the outer wall of the cylinder cover (10) is fixedly connected with the outer wall of the cylinder cap (13), the outer wall of the cylinder cap (13) is provided with a circular groove, the inner wall of the circular groove is fixedly connected with a sealing ring (14), the inner wall of the sealing ring (14) is slidably connected with the outer wall of the piston rod (9), the outer wall of the cylinder cap (13) is provided with a groove, the inner wall of the groove is fixedly connected with a dust ring (15), the inner wall of the dust ring (15) is slidably connected with the outer wall of the piston rod (9), and the outer wall of the cylinder body (2) is fixedly connected with a first oil inlet (16) and a second oil inlet (17).

3. The double-shaft synchronous hydraulic oil cylinder as claimed in claim 1, wherein the outer wall of the piston (4) is provided with two annular grooves, and the inner walls of the two annular grooves are respectively sleeved with an antiwear ring (7) and an antifouling ring (8).

4. The double-shaft synchronous hydraulic oil cylinder as claimed in claim 1, wherein four assembly holes are formed in the outer walls of the cylinder cover (10) and the cylinder body (2), and bolts (11) are connected to the inner walls of the four assembly holes in a threaded manner.

5. The double-shaft synchronous hydraulic oil cylinder as claimed in claim 2, wherein the outer walls of the cylinder cap (13) and the cylinder cover (10) are provided with sliding holes, and the inner walls of the sliding holes are slidably connected with the outer wall of the piston rod (9).

6. The double-shaft synchronous hydraulic oil cylinder as claimed in claim 2, characterized in that the outer wall of the cylinder body (2) is provided with two V-shaped holes, and the first oil inlet (16) and the second oil inlet (17) are communicated with the two V-shaped holes respectively.

7. The double-shaft synchronous hydraulic oil cylinder as defined in claim 1, wherein four mounting holes are formed in the outer wall of the base (1), and screws are connected to the inner walls of the four mounting holes in a threaded manner.