CN216044751U

CN216044751U - Buffer high-pressure oil cylinder

Info

Publication number: CN216044751U
Application number: CN202122592079.XU
Authority: CN
Inventors: 庄培贤
Original assignee: Deka Hydraulic Technology Suzhou Co ltd
Current assignee: Deka Hydraulic Technology Suzhou Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-03-15
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a buffering high-pressure oil cylinder, and particularly relates to the field of oil cylinders, which comprises a cylinder body, wherein a piston rod is slidably connected inside the cylinder body, a plug disc is fixedly sleeved on the outer surface of the middle part of the piston rod, sleeves are fixedly connected to the outer surfaces of two sides of one end of the cylinder body, mounting plates are fixedly connected to the upper ends of the two sleeves, electric motors are fixedly connected to the two mounting plates, and output shafts of the two electric motors are fixedly connected with rotating shafts. According to the utility model, by arranging the ball, the resistance to the movement of the piston rod can be realized by starting the electric motor, so that the movement speed of the piston rod is reduced, the impact on the inner wall of the cylinder body is reduced, and when the electric motor is not started, the movement of the piston rod can drive the ball to rotate along the limiting rod to realize rotation, the resistance is small, the effect of blocking the piston rod is not easily caused, and the outer surfaces of the ball and the piston rod are curved surfaces, so that the abrasion is small, the speed can be reduced, and the abrasion of the outer surface of the piston rod can be reduced.

Description

Buffer high-pressure oil cylinder

Technical Field

The utility model relates to the technical field of oil cylinders, in particular to a buffering high-pressure oil cylinder.

Background

The hydraulic cylinder is a linear motion type executive component with output force in direct proportion to the effective area of the piston and the pressure difference between the two sides of the piston, and the hydraulic cylinder has the function of converting hydraulic energy into mechanical energy. The hydraulic cylinders are various in types and comprise piston type hydraulic cylinders, plunger type hydraulic cylinders and swing type hydraulic cylinders, wherein the piston type hydraulic cylinders are divided into a single rod and a double rod, and the double rod type hydraulic cylinders have the function of being capable of being pulled out from two ends.

However, in practical use, when the two ends of most of the double-rod hydraulic cylinders are pushed by oil pressure, the piston rods are often pushed to impact the inner wall of the cylinder body due to high pressure, so that the cylinder body is subjected to heavy impact for a long time, and the cylinder body is easy to damage quickly.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a buffer high-pressure cylinder to solve the above-mentioned problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: buffering high-pressure oil cylinder, including the cylinder body, the inside sliding connection of cylinder body has the piston rod, the fixed cover of middle part surface of piston rod is equipped with the plug disc, the equal fixedly connected with sleeve of one end both sides surface of cylinder body, two the equal fixedly connected with coupling assembling in telescopic upper end, two equal fixedly connected with electric motor, two on the coupling assembling the equal fixedly connected with pivot of output shaft of electric motor, two the tip of pivot all is provided with the ball, the surface and the piston rod surface of ball contact.

Preferably, the rotating groove is formed in the end portion of the rotating shaft, the limiting rods are fixedly connected between the inner walls of the two sides of the rotating groove, the balls penetrate through the outer surfaces of the two limiting rods respectively, and the balls are connected to the inner portion of the rotating groove in a rotating mode respectively in a rotating mode.

Preferably, two input connecting pipes and two output connecting pipes are fixedly connected to two sides of the cylinder body respectively.

Preferably, an elastic cushion ring is arranged on the inner wall of one end of the cylinder body, and the elastic cushion ring is sleeved on the outer surface of the piston rod.

Preferably, two the pivot is worn to locate inside two sleeves respectively, and two the pivot all sets up in the port department that is close to cylinder body one end.

Preferably, the connecting assembly comprises two flanges, the two flanges are respectively and fixedly connected with the electric motor and the sleeve, and the two flanges are fixedly installed through screws.

The utility model has the technical effects and advantages that:

1. compared with the prior art, through setting up the ball, the starting of electric motor can realize the hindrance ability to the piston rod removal, in order to realize reducing piston rod translation rate, in order to reduce the impact to the cylinder body inner wall, and when electric motor did not start, the removal of piston rod then can drive the ball and rotate along the gag lever post and realize rotating, the less effect that causes the hindrance piston rod of resistance, and the ball surface is the curved surface with the piston rod surface, when wearing and tearing are less can the deceleration, reduce the wearing and tearing of piston rod surface.

2. Compared with the prior art, through setting up the pivot, the one end of cylinder body is provided with the pivot and makes the plug disc reach the limited direct impact that can not arrive in cylinder body port department in position, is favorable to protecting the sealed effect of port department like this more, and the other end of cylinder body is provided with the effect that elasticity backing ring reachd the tip striking as buffering plug disc.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the cylinder body of the utility model.

FIG. 3 is a schematic structural diagram of the present invention A.

FIG. 4 is a schematic side sectional view of the ball of the present invention.

FIG. 5 is a schematic view of the structure of the present invention B.

The reference signs are: 1. a cylinder body; 2. a piston rod; 3. a plug disc; 4. an input connection pipe; 5. an output connection pipe; 6. an elastic cushion ring; 7. an electric motor; 8. a sleeve; 9. a connecting assembly; 10. a rotating shaft; 11. rotating the groove; 12. a ball bearing; 13. a limiting rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The buffering high-pressure oil cylinder shown in the attached figures 1-5 comprises a cylinder body 1, a piston rod 2 is connected inside the cylinder body 1 in a sliding manner, a plug disc 3 is fixedly sleeved on the outer surface of the middle part of the piston rod 2, sleeves 8 are fixedly connected on the outer surfaces of two sides of one end of the cylinder body 1, connecting assemblies are fixedly connected on the upper ends of the two sleeves 8, electric motors 7 are fixedly connected on two connecting assemblies 9, rotating shafts 10 are fixedly connected on output shafts of the two electric motors 7, balls 12 are arranged at the end parts of the two rotating shafts 10, the outer surfaces of the balls 12 are in contact with the outer surface of the piston rod 2, the blocking capability for the movement of the piston rod 2 can be realized by starting the electric motors 7, the moving speed of the piston rod 2 is reduced, the impact on the inner wall of the cylinder body is reduced, when the electric motors 7 are not started, the balls 12 can rotate along a limiting rod 13 as far as possible, the movement of the piston rod 2 only drives the balls 12 to rotate along the limiting rod 13, the rotation is realized, the resistance is small, the effect of blocking the piston rod 2 is not easy to cause, the outer surfaces of the balls 12 and the piston rod 2 are curved surfaces, and the abrasion is small, so that the abrasion of the outer surface of the piston rod is reduced while the speed is reduced.

In a preferred embodiment, as shown in fig. 1, fig. 3 and fig. 5, the end portions of the two rotating shafts 10 are respectively provided with a rotating groove 11, a limiting rod 13 is fixedly connected between the inner walls of the two sides of the two rotating grooves 11, two balls 12 respectively penetrate the outer surfaces of the two limiting rods 13, the two balls 12 are respectively rotatably connected inside the rotating groove 11, so that the starting of the electric motor 7 can realize the resistance to the movement of the piston rod 2, so as to reduce the moving speed of the piston rod 2, so as to reduce the impact on the inner wall of the cylinder body, and when the electric motor 7 is not started, the balls 12 can rotate along the limiting rods 13 as far as possible, the movement of the piston rod 2 only drives the balls 12 to rotate along the limiting rods 13, so as to realize the rotation, the resistance is small, the effect of blocking the piston rod 2 is not easily caused, and the outer surfaces of the balls 12 and the outer surface of the piston rod 2 are curved surfaces, and the wear is small, and the speed can be reduced, the wear of the outer surface of the piston rod is reduced.

In a preferred embodiment, as shown in fig. 1 and 2, two input connecting pipes 4 and two output connecting pipes 5 are fixedly connected to both sides of the cylinder 1, respectively, so as to facilitate the entry and exit of hydraulic oil into and out of the cylinder.

In a preferred embodiment, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, an inner wall of one end of the cylinder 1 is provided with an elastic cushion ring 6, the elastic cushion ring 6 is sleeved on an outer surface of the piston rod 2, the two rotating shafts 10 are respectively penetrated inside the two sleeves 8, and the two rotating shafts 10 are both arranged at a port close to one end of the cylinder 1, so that the rotating shaft is arranged at one end of the cylinder 1 to limit the reaching position of the plug disc 3 and prevent the plug disc from directly colliding at the port of the cylinder, which is more beneficial to protecting the sealing effect at the port, and the elastic cushion ring is arranged at the other end of the cylinder 1 to buffer the collision of the plug disc 3 at the end.

In a preferred embodiment, as shown in fig. 1, two rotating shafts 10 are inserted into the sleeve 8, a bearing is sleeved between the outer surface of the rotating shaft 10 and the inner wall of the sleeve 8, and a sealing gasket is disposed between the inner ring and the outer ring of the bearing, so as to increase the sealing effect between the rotating shaft 10 and the sleeve 8.

In a preferred embodiment, as shown in fig. 4, the connection assembly 9 comprises two flanges, the two flanges are fixedly connected with the electric motor 7 and the sleeve 8 respectively, and the two flanges are fixedly mounted by screws.

The working principle of the utility model is as follows: when the device is used, the output shaft of the electric motor 7 rotates to enable the rotating shaft 10 to rotate, then the rotating shaft 10 drives the balls 12 to rotate, and the balls 12 are in surface contact with the piston rod 2, the motion direction of the piston rod 2 is in left-right translation motion, and the rotation of the balls 12 enables the linear motion of the piston rod 2 to generate blocking acting force, so that when the piston rod 2 moves, the starting of the electric motor 7 can realize the blocking capability on the movement of the piston rod 2, the moving speed of the piston rod 2 is reduced, the impact on the inner wall of the cylinder body is reduced, when the electric motor 7 is not started, the balls 12 can rotate along the limiting rod 13 as far as possible, the movement of the piston rod 2 only drives the balls 12 to rotate along the limiting rod 13, the rotation is realized, the resistance is small, the effect of blocking the piston rod 2 is not easy to cause, and the outer surfaces of the balls 12 and the outer surface of the piston rod 2 are curved surfaces, when wearing and tearing less can the deceleration, reduce the wearing and tearing of piston rod surface, and the one end of cylinder body 1 is provided with the pivot and makes the plug disc 3 reach the position limited can not direct collision at cylinder body port department, is favorable to protecting the sealed effect of port department like this more, and the other end of cylinder body 1 is provided with the effect that the elasticity backing ring reaches the tip striking as buffering plug disc 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Buffering high-pressure cylinder, including cylinder body (1), its characterized in that: cylinder body (1) inside sliding connection has piston rod (2), the middle part surface fixed cover of piston rod (2) is equipped with plug disc (3), the equal fixedly connected with sleeve (8) of one end both sides surface of cylinder body (1), two the equal fixedly connected with coupling assembling (9) in upper end of sleeve (8), two equal fixedly connected with electric motor (7), two on coupling assembling (9) the equal fixedly connected with pivot (10) of output shaft of electric motor (7), two the tip of pivot (10) all is provided with ball (12), the surface and piston rod (2) surface of ball (12) contact.

2. The buffer high-pressure oil cylinder according to claim 1, characterized in that: two rotary groove (11), two have all been seted up to pivot (10) tip fixedly connected with gag lever post (13) between the both sides inner wall of rotary groove (11), two ball (12) are worn to locate respectively on two gag lever post (13) surfaces, two ball (12) rotate respectively and connect inside rotary groove (11).

3. The buffer high-pressure oil cylinder according to claim 1, characterized in that: two input connecting pipes (4) and two output connecting pipes (5) are respectively and fixedly connected to the two sides of the cylinder body (1).

4. The buffer high-pressure oil cylinder according to claim 3, characterized in that: an elastic cushion ring (6) is arranged on the inner wall of one end of the cylinder body (1), and the elastic cushion ring (6) is sleeved on the outer surface of the piston rod (2).

5. The buffer high-pressure oil cylinder according to claim 1, characterized in that: two inside pivot (10) wear to locate two sleeves (8) respectively, and two pivot (10) all set up in the port department that is close to cylinder body (1) one end.

6. The buffer high-pressure oil cylinder according to claim 1, characterized in that: coupling assembling (9) include two flanges, two the flange respectively with electric motor (7) and sleeve (8) fixed connection, two through screw fixed mounting between the flange.