High-buffering-performance hydraulic oil cylinder convenient to adjust

Abstract

The utility model relates to a hydraulic oil cylinder convenient to adjust and high in buffering performance, and aims to solve the technical problems that a cylinder body is impacted by a connecting piece driven by retraction of a current piston rod every time, and deformation or damage is easily caused after long-time use, the hydraulic oil cylinder convenient to adjust comprises a buffering oil cylinder body, the piston rod is arranged in the buffering oil cylinder body, and the hydraulic oil cylinder further comprises a buffering structure; the buffer structure comprises a fixed block, a connecting block, a U-shaped block, a telescopic rod body and a buffer spring; the fixing block is fixedly arranged on the side, close to the extending end, of the buffering oil cylinder body. The connecting block is movably arranged on the outer side of the fixing block; the vertical sections, deviating from each other, of the two U-shaped blocks are correspondingly inserted and matched with the holes in the top sides of the fixing block and the connecting block respectively; the telescopic rod body is arranged between the two U-shaped blocks; the buffering oil cylinder has the advantage that when the piston rod drives the connecting piece to retract, the connecting piece is buffered before impacting a cylinder body of the buffering oil cylinder body.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder with high buffering performance which is easy to adjust. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It is widely used in the hydraulic systems of various machines.

[0003] For high-speed hydraulic cylinders, each retraction of the piston rod will cause the connecting parts to hit the cylinder body. Long-term use can easily cause deformation or damage, affecting the use of the hydraulic cylinder.

[0004] In view of this, we propose a hydraulic cylinder with high buffering performance which is easy to adjust. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide an easily adjustable high-buffering hydraulic cylinder to solve the technical problem that each time the piston rod retracts, the connecting piece will hit the cylinder body, which may be easily deformed or damaged after long-term use.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a hydraulic oil cylinder with high buffering performance that is easy to adjust, including a buffering oil cylinder body, a piston rod is arranged in the buffering oil cylinder body, and also includes a buffering structure;

[0007] Two buffer structures are symmetrically arranged on one side of the buffer oil cylinder body close to the extended end;

[0008] The buffer structure comprises a fixed block, a connecting block, a U-shaped block, a telescopic rod body and a buffer spring;

[0009] The fixing block is fixedly arranged on the cylinder body extending end of the buffer oil cylinder body;

[0010] The connecting block is movably arranged outside the fixed block;

[0011] The vertical sections of the two U-shaped blocks, which are separated from each other, are respectively inserted and matched with the openings on the top sides of the fixing block and the connecting block;

[0012] Wherein, the vertical sections opposite to each other of the two U-shaped blocks are respectively fixedly connected to the fixing block and the connecting block by screws;

[0013] The telescopic rod body is arranged between the two U-shaped blocks;

[0014] The buffer spring is sleeved on the telescopic rod body.

[0015] Preferably, the vertical ends of the two U-shaped blocks facing away from each other are respectively provided with arc-shaped surfaces.

[0016] Preferably, the buffer spring is in a compressed state.

[0017] Preferably, an arc-shaped bar is fixedly provided at the bottom end of the connecting block, and the arc-shaped bar corresponds to the piston rod.

[0018] Preferably, a plurality of balls are rotatably arranged on the inner wall of the arc-shaped strip in a ring array, and the balls are in contact and fit with the outer wall of the piston rod.

[0019] Preferably, two contact blocks are symmetrically fixed on the outer wall of the connection block;

[0020] Wherein, the contact block is designed in an arc-shaped structure, and the arc-shaped side of the contact block faces outwards.

[0021] Preferably, a rubber pad is fixedly mounted on the arc-shaped side of the contact block.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The utility model has the advantage that when the piston rod drives the connecting piece to retract, the connecting piece is buffered before it hits the cylinder body of the buffering oil cylinder body by arranging a fixed block, a connecting block, a U-shaped block, a telescopic rod body and a buffer spring, thereby solving the problem that each time the piston rod retracts, the connecting piece will hit the cylinder body, which may be easily deformed or damaged after long-term use.

[0024] 2. The utility model has the advantage that the U-shaped block is detachable relative to the fixed block and the connecting block by arranging the fixing block, the connecting block, the U-shaped block and the screws, and the adjustment operation is convenient when the buffer spring is damaged or the buffer spring with different elastic coefficient is replaced.

[0025] 3. The utility model has the advantages of assisting the movement of the connecting block by arranging the arc strip and the ball, and making the movement of the connecting block stable by the contact between the ball and the outer wall of the piston rod.

[0026] 4. The utility model has the advantages of small collision surface with the connecting piece and less damage due to the arrangement of the contact block and the rubber pad, and soft contact and low noise of the rubber pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the buffer structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the connection structure of the fixed block and the U-shaped block of the utility model;

[0030] Figure 4 For the utility model Figure 3 A magnified schematic diagram of point A;

[0031] In the figure: 1. Buffering cylinder body; 2. Piston rod; 3. Buffering structure;

[0032] 301, fixing block; 302, connecting block; 303, U-shaped block; 304, telescopic rod body; 305, buffer spring; 306, screw; 307, arc strip; 308, ball bearing; 309, contact block; 3010, rubber pad;

[0033] 3031. Curved surface. DETAILED DESCRIPTION

[0034] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0035] Embodiment 1: A hydraulic cylinder with high buffer performance that is easy to adjust, see Figures 1 to 4 ,

[0036] It comprises a buffering oil cylinder body 1, a piston rod 2 is arranged in the buffering oil cylinder body 1, and also comprises a buffering structure 3; two buffering structures 3 are symmetrically arranged on one side of the buffering oil cylinder body 1 close to the protruding end;

[0037] The buffer structure 3 includes a fixed block 301, a connecting block 302, a U-shaped block 303, a telescopic rod body 304 and a buffer spring 305; the fixed block 301 is fixedly arranged at the protruding end of the cylinder body of the buffer cylinder body 1; the connecting block 302 is movably arranged on the outside of the fixed block 301; the two U-shaped blocks 303 have vertical sections that are opposite to each other and are respectively plugged into and matched with the top side openings of the fixed block 301 and the connecting block 302; the two U-shaped blocks 303 have vertical ends that are opposite to each other and are respectively provided with arc surfaces 3031, and the vertical sections of the U-shaped blocks 303 are smoothly inserted into the openings; wherein, the two U-shaped blocks 303 have vertical sections that are opposite to each other and are respectively fixedly connected to the fixed block 301 and the connecting block 302 by screws 306.

[0038] The utility model has the advantage that the U-shaped block 303 is detachable relative to the fixed block 301 and the connecting block 302 by setting the fixing block 301, the connecting block 302, and the adjustment operation is convenient when the buffer spring 305 is damaged or the buffer spring 305 with a different elastic coefficient is replaced.

[0039] The telescopic rod body 304 is arranged between the two U-shaped blocks 303; the buffer spring 305 is sleeved on the telescopic rod body 304, and the two ends of the buffer spring 305 are respectively connected to the vertical sections opposite to the two U-shaped blocks 303. The elastic coefficient of the buffer spring 305 is selected and used by technicians in this profession according to actual conditions; the buffer spring 305 is in a compressed state, and the buffer spring 305 pushes the connecting block 302 outward.

[0040] The utility model has the advantage of buffering the connecting piece before it hits the cylinder body of the buffering oil cylinder body 1 when the piston rod 2 drives the connecting piece to retract by arranging the fixing block 301, the connecting block 302, the U-shaped block 303, the telescopic rod body 304 and the buffer spring 305, thereby solving the problem that each time the piston rod 2 retracts, the connecting piece will hit the cylinder body, which may be easily deformed or damaged after long-term use.

[0041] Embodiment 2: A hydraulic cylinder with high buffer performance that is easy to adjust, see Figure 2 ;

[0042] The bottom end of the connecting block 302 is fixed with an arc strip 307, which corresponds to the piston rod 2. The inner wall of the arc strip 307 is provided with a plurality of balls 308 rotating in an annular array, and the balls 308 are in contact with the outer wall of the piston rod 2.

[0043] The utility model has the advantages of assisting the movement of the connecting block 302 by arranging the arc strip 307 and the ball 308, and making the movement of the connecting block 302 stable by the contact between the ball 308 and the outer wall of the piston rod 2.

[0044] Embodiment 3: A hydraulic cylinder with high buffering performance that is easy to adjust, see Figure 2 ;

[0045] Two contact blocks 309 are symmetrically fixed on the outer wall of the connection block 302; wherein the contact blocks 309 are designed in an arc-shaped structure, with the arc-shaped side of the contact blocks 309 facing outwards. A rubber pad 3010 is fixedly attached to the arc-shaped side of the contact block 309.

[0046] The utility model has the advantages of small collision surface with the connecting piece and less damage by providing the contact block 309 and the rubber pad 3010, and the rubber pad 3010 has soft contact and low noise.

[0047] Working principle: When using the device of the utility model, when the piston rod 2 retracts, the connecting piece retracts together with the piston rod 2, the connecting piece contacts the rubber pad 3010 and squeezes the rubber pad 3010 and the contact block 309, and the connecting block 302 is squeezed accordingly, the telescopic rod body 304 is shortened, the buffer spring 305 is further compressed, and the ball 308 moves along the outer wall of the piston rod 2 to provide buffering protection for the retracted connecting piece.

[0048] When the buffer spring 305 is damaged or replaced with a buffer spring 305 with a different elastic coefficient, the screw 306 is loosened and removed, the U-shaped block 303 is pulled out for replacement, and the new U-shaped block 303 is correspondingly inserted into the opening and the screw 306 is screwed on to fix it.

[0049] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A hydraulic cylinder with high buffering performance that is easy to adjust, comprising a buffering cylinder body (1), wherein a piston rod (2) is arranged in the buffering cylinder body (1), characterized in that: Also includes: Two buffer structures (3) are symmetrically arranged on one side of the buffer oil cylinder body (1) close to the extended end; The buffer structure (3) comprises: A fixed block (301) is fixedly mounted on the cylinder body protruding end of the buffer oil cylinder body (1); A connecting block (302) movably arranged outside the fixing block (301); Two U-shaped blocks (303), with their vertical sections separated from each other, are respectively inserted and matched with the top openings of the fixing block (301) and the connecting block (302); The two opposite vertical sections of the U-shaped blocks (303) are respectively fixedly connected to the fixing block (301) and the connecting block (302) by screws (306); A telescopic rod body (304) is arranged between the two U-shaped blocks (303); The buffer spring (305) is sleeved on the telescopic rod body (304).

2. The easily adjustable high buffer performance hydraulic cylinder according to claim 1, characterized in that: The two U-shaped blocks (303) are respectively provided with arc-shaped surfaces (3031) at their vertical ends facing away from each other.

3. The easily adjustable high buffer performance hydraulic cylinder according to claim 1, characterized in that: The buffer spring (305) is in a compressed state.

4. The easily adjustable high buffer performance hydraulic cylinder according to claim 1, characterized in that: An arc strip (307) is fixedly provided at the bottom end of the connection block (302), and the arc strip (307) corresponds to the piston rod (2).

5. The easily adjustable high buffer performance hydraulic cylinder as claimed in claim 4, characterized in that: The inner wall of the arc strip (307) is provided with a plurality of balls (308) which are rotatably arranged in a ring array, and the balls (308) are in contact and cooperation with the outer wall of the piston rod (2).

6. The easily adjustable high buffer performance hydraulic cylinder according to claim 1, characterized in that: Two contact blocks (309) are symmetrically fixed on the outer wall of the connection block (302); The contact block (309) is designed to be an arc-shaped structure, and the arc-shaped side of the contact block (309) faces outwards.

7. The easily adjustable high buffer performance hydraulic cylinder as claimed in claim 6, characterized in that: A rubber pad (3010) is fixedly attached to the arc-shaped side of the contact block (309).

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