CN223781772U - An anti-shock balanced hydraulic cylinder - Google Patents

Abstract

The utility model discloses an anti-impact balance type hydraulic cylinder which comprises a cylinder body, wherein a base is arranged at the bottom of the cylinder body, a cylinder seat is arranged on the outer side of the cylinder body and fixedly connected with the base, a piston rod is arranged on the cylinder body, a plurality of cavities are formed in the cylinder seat, a plurality of guide holes are formed in the top of the cylinder seat, a plurality of guide mechanisms are arranged on the piston rod, a plurality of auxiliary mechanisms are arranged in a plurality of cavities, and the guide mechanisms comprise a plurality of auxiliary blocks fixedly arranged on the piston rod. According to the utility model, by arranging the guide mechanism and the auxiliary mechanism, the piston rod can be guided in an auxiliary manner in the process of extending or retracting the piston rod, and the cylinder body can be limited in an auxiliary manner in the process of retracting the piston rod, so that the moving trend of the cylinder body in the cylinder seat towards the base can be slowed down to a certain extent, the return impact energy of the piston rod can be effectively absorbed, and the stability of the cylinder body is improved.

Description

Anti-impact balance type hydraulic cylinder

Technical Field

The utility model relates to the technical field of hydraulic cylinders, in particular to an anti-impact balanced hydraulic cylinder.

Background

The hydraulic oil cylinder is simple in structure and reliable in operation, is driven by a hydraulic medium, has very high response speed, can finish the action in a very short time, and is stable in motion process, and vibration and noise are not easy to generate, so that the hydraulic oil cylinder can be widely applied to occasions with requirements on motion stability.

The traditional hydraulic cylinder guiding device adopts a fixed guiding sleeve structure, and can realize a basic guiding function only by means of the fit clearance between a piston rod and a cylinder barrel, so that the defect of low guiding precision exists. Particularly, under the working condition that a piston rod is retracted rapidly, the cylinder body is easy to generate axial movement under the action of inertia, so that the service life of equipment is reduced, and the anti-impact balanced hydraulic cylinder is provided.

Disclosure of utility model

The utility model aims to solve the defects in the prior art and provides an anti-impact balance type hydraulic cylinder.

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

The utility model provides a balanced hydraulic cylinder of protection against shock, includes the cylinder body, the bottom of cylinder body is provided with the base, the outside of cylinder body is provided with the tube holder, tube holder and base fixed connection, be provided with the piston rod on the cylinder body, a plurality of cavitys have been seted up in the tube holder, a plurality of guiding holes have been seted up at the top of tube holder, be provided with a plurality of guiding mechanism on the piston rod, a plurality of all be provided with a plurality of complementary unit in the cavity.

Preferably, the guide mechanism comprises a plurality of auxiliary blocks fixedly mounted on the piston rod, guide rods are fixedly mounted at the bottoms of the auxiliary blocks, and the guide rods penetrate through the guide holes and are in sliding connection with the guide holes respectively.

Preferably, the auxiliary mechanism comprises a connecting rod which is arranged on the inner wall of one side of the cavity close to the cylinder body in a penetrating way and is in sliding connection with the connecting rod, a mounting block is fixedly arranged at one end of the connecting rod, which is positioned in the cavity, a spring is fixedly connected between the mounting block and the inner wall of one side of the cavity close to the cylinder body, and a supporting block is fixedly arranged at one end of the connecting rod, which is positioned in the cylinder seat.

Preferably, a plurality of the guide holes are respectively communicated with a plurality of the cavities, and a buffer piece is arranged between the cylinder body and the base.

Preferably, the vertical section of the installation block is in a right triangle shape, and the vertical section of the guide rod is in a right trapezoid shape.

Preferably, a rubber sheet is arranged on one side wall of the abutting block, which is close to the cylinder body, and the connecting rod is a rectangular rod.

The utility model has the beneficial effects that:

Through setting up guiding mechanism and complementary unit, not only can carry out supplementary direction to the piston rod at the in-process that the piston rod stretches out or contracts, can also carry out supplementary spacing to the cylinder body at the in-process that the piston rod contracts to can slow down the trend that the cylinder body moved towards the base in the tube holder to a certain extent, can effectively absorb the impact energy of piston rod return stroke, improve the stability of cylinder body.

Drawings

FIG. 1 is a schematic perspective view of an impact-resistant balanced hydraulic cylinder according to the present utility model;

FIG. 2 is a schematic plan view of an impact-resistant balanced hydraulic cylinder according to the present utility model;

Fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.

In the figure, a base 1, a cylinder seat 2, a guide rod 3, a cylinder body 4, a piston rod 5, an auxiliary block 6, a buffer piece 7, a cavity 8, a rubber sheet 9, a supporting block 10, an installation block 11, a spring 12, a connecting rod 13 and a guide hole 14 are arranged.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, an anti-impact balance type hydraulic cylinder comprises a cylinder body 4, a base 1 is arranged at the bottom of the cylinder body 4, a cylinder seat 2 is arranged at the outer side of the cylinder body 4, the cylinder seat 2 is fixedly connected with the base 1, a piston rod 5 is arranged on the cylinder body 4, a plurality of cavities 8 are formed in the cylinder seat 2, a plurality of guide holes 14 are formed in the top of the cylinder seat 2, a plurality of guide mechanisms are arranged on the piston rod 5, each guide mechanism comprises a plurality of auxiliary blocks 6 fixedly arranged on the piston rod 5, guide rods 3 are fixedly arranged at the bottoms of the plurality of auxiliary blocks 6, the plurality of guide rods 3 respectively penetrate through the plurality of guide holes 14 and are respectively connected with the plurality of guide holes 14 in a sliding manner, the piston rod 5 can be assisted by the guide rods 3 and the guide holes 14, so that stability of the piston rod 5 in the extending or retracting process is improved, the plurality of guide holes 14 are respectively communicated with the plurality of cavities 8, a buffer piece 7 is arranged between the cylinder body 4 and the base 1, the buffer piece 7 is arranged into high elastic rubber, such as silicon rubber or fluororubber, the hard buffer piece 7 can further realize the buffer piece 4 to the cylinder body 4, good displacement performance can be guaranteed, and good displacement accuracy of the cylinder body 4 can be guaranteed.

All be provided with a plurality of complementary unit in a plurality of cavitys 8, complementary unit is including running through the connecting rod 13 that sets up on cavity 8 is close to cylinder body 4 one side inner wall and rather than sliding connection, the one end fixed mounting who connecting rod 13 is located cavity 8 has installation piece 11, fixedly connected with spring 12 between installation piece 11 and the one side inner wall that cavity 8 is close to cylinder body 4, one end fixed mounting that connecting rod 13 is located barrel holder 2 has to support piece 10, the vertical cross-section of installation piece 11 is right angle triangle-shaped, the vertical cross-section of guide bar 3 is right angle trapezoid, it is provided with rubber sheet 9 on the lateral wall that support piece 10 is close to cylinder body 4, connecting rod 13 is the rectangle pole, the rectangle cross-section design prevents that connecting rod 13 from rotating, keep the direction of motion stability.

When the cylinder body 4 is in use, when the piston rod 5 returns in the cylinder body 4, the piston rod 5 can be guided by arranging the auxiliary block 6, the guide rod 3 and the guide hole 14, so that the stability in the extending and retracting process is ensured, the return stroke of the piston rod 5 can drive the guide rod 3 to move downwards, the inclined planes on the guide rod 3 are matched with the inclined planes of the plurality of mounting blocks 11 in the cavity 8 in sequence, so that the mounting blocks 11, the connecting rod 13, the abutting blocks 10 and the rubber sheet 9 can move towards the direction close to the cylinder body 4, the spring 12 is compressed, and the cylinder body 4 can be clamped and limited, so that the moving trend of the cylinder body 4 in the cylinder seat 2 towards the base 1 can be slowed down to a certain extent, the impact energy of the return stroke of the piston rod 5 can be effectively absorbed, and the stability of the cylinder body 4 can be improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (5)

1. The utility model provides a balanced hydraulic cylinder of protection against shock, includes cylinder body (4), its characterized in that, the bottom of cylinder body (4) is provided with base (1), the outside of cylinder body (4) is provided with tube holder (2), tube holder (2) and base (1) fixed connection, be provided with piston rod (5) on cylinder body (4), a plurality of cavitys (8) have been seted up in tube holder (2), a plurality of guiding holes (14) have been seted up at the top of tube holder (2), be provided with a plurality of guiding mechanism on piston rod (5), guiding mechanism includes a plurality of auxiliary blocks (6) of fixed mounting on piston rod (5), a plurality of the equal fixed mounting in bottom of auxiliary block (6) guide bar (3), a plurality of guide bar (3) run through a plurality of guiding holes (14) respectively and respectively with a plurality of guiding hole (14) sliding connection, a plurality of all be provided with a plurality of auxiliary mechanism in cavity (8).

2. The anti-impact balance type hydraulic cylinder according to claim 1, wherein the auxiliary mechanism comprises a connecting rod (13) penetrating through the inner wall of one side of the cavity (8) close to the cylinder body (4) and in sliding connection with the cavity, one end of the connecting rod (13) located in the cavity (8) is fixedly provided with a mounting block (11), a spring (12) is fixedly connected between the mounting block (11) and the inner wall of one side of the cavity (8) close to the cylinder body (4), and one end of the connecting rod (13) located in the cylinder seat (2) is fixedly provided with a resisting block (10).

3. The anti-impact balance type hydraulic cylinder according to claim 1, wherein a plurality of the guide holes (14) are respectively communicated with a plurality of cavities (8), and a buffer (7) is arranged between the cylinder body (4) and the base (1).

4. The impact-resistant balance type hydraulic cylinder according to claim 2, wherein the vertical section of the mounting block (11) is in a right triangle shape, and the vertical section of the guide rod (3) is in a right trapezoid shape.

5. The anti-impact balance type hydraulic cylinder according to claim 2, wherein a rubber sheet (9) is arranged on a side wall of the abutting block (10) close to the cylinder body (4), and the connecting rod (13) is a rectangular rod.