Buffer type hydraulic oil cylinder

Abstract

The utility model relates to the technical field of hydraulic oil cylinders, and discloses a buffer type hydraulic oil cylinder which comprises a cylinder barrel, a piston rod is connected in the cylinder barrel in a sliding mode, a sealing sleeve is fixedly connected to the left side of the outer portion of the piston rod, two sleeves are fixedly connected to the left side of the sealing sleeve, and springs are arranged in the two sleeves. Cylinder sleeves are slidably connected to the interiors of the two sleeves correspondingly, rubber pads are fixedly connected to the left sides of the two cylinder sleeves, a first connecting ring is fixedly connected to the left side of the piston rod, two mounting sleeves are fixedly connected to the right side of the first connecting ring, and a connecting block is fixedly connected to the right side of the cylinder barrel. The right side of the connecting block is fixedly connected with a second mounting ring, and the top of the oil inlet is fixedly connected with a mounting assembly. According to the utility model, the cylinder sleeve is matched with the rubber pad and the mounting sleeve for use, so that the piston rod and the cylinder barrel can be effectively buffered.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic oil cylinder technical field especially relates to a buffer formula hydraulic oil cylinder. BACKGROUND

[0002] Hydraulic oil cylinder is the hydraulic energy conversion mechanical energy, do linear reciprocating motion (or swing motion) hydraulic actuator. It simple structure, reliable work. When using it to realize reciprocating motion, can dispense with the reduction device, and there is no transmission gap, movement is stable, therefore in the hydraulic system of various machines is widely used.

[0003] Through the search, the buffer formula hydraulic oil cylinder of a kind of buffer formula hydraulic oil cylinder of CN205578403U is related to hydraulic oil cylinder technical field, including cylinder body, piston rod, piston and cylinder bottom cover, the end of cylinder body is fixedly installed by welding cylinder bottom cover, piston is sleeved in the end of piston rod, and is fixedly connected with piston rod, the inside sealing of cylinder body is equipped with rodless cavity, the front end in rodless cavity is equipped with piston and piston rod, cylinder bottom cover is equipped with oil inlet hole, the front end of cylinder body and piston rod is equipped with flange, the end of flange is fixedly connected with buffer block by bolt and fixing piece, buffer block is equipped with semicircular groove, the front end of piston is equipped with the first buffer block matched with semicircular groove, the end of piston is equipped with second buffer block, cylinder bottom cover is equipped with the rectangular buffer groove matched with second buffer block, the end of piston rod is equipped with plunger, the cylinder bottom cover is equipped with the plunger hole matched with the plunger. The utility model discloses simple structure, lower cost, reasonable in design, simple processing, easy to assemble, low processing cost, suitable for mass production.

[0004] The patent mentioned in the "the utility model discloses simple structure, lower cost, reasonable in design, simple processing, easy to assemble, low processing cost, suitable for mass production", although the patent can realize the buffering of oil cylinder, but in the long-term use process of hydraulic oil cylinder, wear still appears, therefore, the buffer structure needs to be replaced, in view of the above problems, present a kind of buffer formula hydraulic oil cylinder. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a buffer formula hydraulic oil cylinder, to improve the problems that the piston rod and cylinder barrel cannot be effectively buffered and the piston cannot be effectively sealed in the prior art.

[0006] To achieve the purpose, the utility model provides the following technical scheme: a buffer type hydraulic oil cylinder, including cylinder, the inside sliding joint of cylinder has piston rod, the outside left side fixed connection of piston rod has sealing sleeve, the left side fixed connection of sealing sleeve has two sleeve, the inside of two sleeve all is provided with spring, the inside of two sleeve all is slidingly connected with cylinder sleeve, the left side fixed connection of two cylinder sleeve has rubber pad, the left side fixed connection of piston rod has connecting ring no.

[0007] Further, the mounting assembly includes a mounting plate, the bottom of the mounting plate is fixedly connected to the top of the oil inlet, mounting slots are formed in the top of the mounting plate at four corners, and bolts are threadedly connected in the mounting slots.

[0008] Further, the right side of the piston rod is fixedly connected with a sealing ring, the outer right side of the sealing ring is fixedly connected with a sealing ring one, the outer side of the sealing ring is fixedly connected with an anti-wear ring, the outer left side of the sealing ring is fixedly connected with an anti-fouling ring, the left side of the sealing ring is fixedly connected with a buffer sleeve, the outer left side of the sealing sleeve is fixedly connected with a sealing ring two, and the outer right side of the sealing sleeve is fixedly connected with a dustproof ring.

[0009] Further, one side of the spring is fixedly connected in the sleeve, and the other side of the spring is fixedly connected in the cylinder sleeve.

[0010] Further, the outer left side of the cylinder sleeve is slidingly connected in the mounting sleeve, and the outer side of the rubber pad is slidingly connected in the mounting sleeve.

[0011] Further, the outer side of the sealing ring is slidingly connected in the cylinder, and the outer side of the buffer sleeve is slidingly connected in the cylinder.

[0012] Further, the outer side of the sealing ring one is in contact with the inner wall of the cylinder, and the outer side of the anti-wear ring is in contact with the inner side of the cylinder.

[0013] Further, the outer side of the anti-fouling ring is in contact with the inner wall of the cylinder, and the outer side of the dustproof ring is in contact with the inner wall of the cylinder.

[0014] The utility model has the advantages of:

[0015] 1. In the utility model, through the cooperation of sealing sleeve, sleeve, spring, cylindrical sleeve, rubber pad, connecting ring one, mounting sleeve, connecting block, mounting ring two and the like, through the use between cylindrical sleeve, rubber pad and mounting sleeve, effective buffering between piston rod and cylinder can be realized.

[0016] 2. In the utility model, through the cooperation of sealing ring, sealing ring one, anti-wear ring, anti-fouling ring, buffer sleeve, sealing ring two and dustproof ring and the like, through the use of sealing ring one and anti-fouling ring, the interior of the piston can be effectively sealed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A perspective view of the buffer type hydraulic oil cylinder is provided for the utility model;

[0018] Figure 2 A mounting ring two structure schematic view of the buffer type hydraulic oil cylinder is provided for the utility model;

[0019] Figure 3 A mounting sleeve structure schematic view of the buffer type hydraulic oil cylinder is provided for the utility model;

[0020] Figure 4 A Figure 1 An enlarged view of A in the middle;

[0021] Figure 5 A buffer sleeve structure schematic view of the buffer type hydraulic oil cylinder is provided for the utility model.

[0022] LEGEND:

[0023] 1, cylinder; 2, piston rod; 3, sealing sleeve; 4, sleeve; 5, spring; 6, cylindrical sleeve; 7, rubber pad; 8, connecting ring one; 9, mounting sleeve; 10, connecting block; 11, mounting ring two; 12, oil inlet; 13, mounting plate; 14, mounting groove; 15, bolt; 16, sealing ring; 17, sealing ring one; 18, anti-wear ring; 19, anti-fouling ring; 20, buffer sleeve; 21, sealing ring two; 22, dustproof ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Refer to Figures 1-3As shown, the utility model provides an embodiment: a buffer type hydraulic oil cylinder, including cylinder 1, cylinder 1 adopts high -strength material to be made to bear the high pressure in hydraulic system, the inside sliding joint of cylinder 1 has piston rod 2, piston rod 2 to deliver hydraulic pressure, the outside left side fixed connection of piston rod 2 has sealing sleeve 3, sealing sleeve 3 ensures sealing performance, the left side fixed connection of sealing sleeve 3 has two sleeve 4, sleeve 4 is used to provide rebound force and buffering effect, sleeve 4 and cylinder sleeve 6 are to prevent the deformation of spring 5 inside, the inside of two sleeve 4 is provided with spring 5, the sliding connection of sleeve 4 cooperates with cylinder sleeve 6 and works, realizes more stable movement, the inside fixed connection of spring 5 in sleeve 4, the inside fixed connection of spring 5 in cylinder sleeve 6, the inside sliding joint of two sleeve 4 has cylinder sleeve 6, cylinder sleeve 6 is used to connect rubber pad 7, the inside sliding joint of cylinder sleeve 6's outside left side in mounting sleeve 9, the inside sliding joint of rubber pad 7's outside in mounting sleeve 9, the left side fixed connection of two cylinder sleeve 6 has rubber pad 7, and rubber pad 7 is used to buffer and reduce impact force, the left side fixed connection of piston rod 2 has connecting ring one 8, and connecting ring one 8 is used to connect piston rod 2, the right side fixed connection of connecting ring one 8 has two mounting sleeve 9, and mounting sleeve 9 is to make cylinder sleeve 6 and rubber pad 7 inside sliding.

[0026] The right side fixed connection of cylinder 1 has connecting block 10, and connecting block 10 is to connect cylinder 1 and mounting ring two 11, the right side fixed connection of connecting block 10 has mounting ring two 11, the top fixed connection of cylinder 1 has oil inlet 12, and oil inlet 12 is used to input hydraulic oil, and the top fixed connection of oil inlet 12 has mounting assembly.

[0027] Referring to Figure 4 As shown, the mounting assembly includes mounting plate 13, and mounting plate 13 cooperates installation groove 14 and bolt 15 to facilitate the connection of oil delivery pipe, the bottom fixed connection of mounting plate 13 in the top of oil inlet 12, the top of mounting plate 13 four corners is equipped with installation groove 14, and the inside of multiple installation grooves 14 is screw connected with bolt 15.

[0028] Referring to Figure 1 、 Figure 2 And Figure 5As shown, the right side of the piston rod 2 is fixedly connected with a sealing ring 16, the sealing ring 16 is used for preventing hydraulic oil leakage, the outer side of the sealing ring 16 is slidably connected in the inner side of the cylinder barrel 1, the outer side of the buffer sleeve 20 is slidably connected in the inner side of the cylinder barrel 1, the outer right side of the sealing ring 16 is fixedly connected with a sealing ring one 17, the sealing ring one 17 improves the sealing performance, the outer side of the sealing ring one 17 is in contact with the inner wall of the cylinder barrel 1, the outer side of the anti-wear ring 18 is in contact with the inner side of the cylinder barrel 1, the outer side of the sealing ring 16 is fixedly connected with the anti-wear ring 18, the anti-wear ring 18 is used for reducing the wear of the sealing ring 16, improving the service life of the sealing system, the outer left side of the sealing ring 16 is fixedly connected with a dirt-proof ring 19, the dirt-proof ring 19 is used for preventing dirt from entering the sealing system, improving the stability and reliability of the sealing system, the outer side of the dirt-proof ring 19 is in contact with the inner wall of the cylinder barrel 1, the outer side of the dustproof ring 22 is in contact with the inner wall of the cylinder barrel 1, the left side of the sealing ring 16 is fixedly connected with the buffer sleeve 20, the buffer sleeve 20 is made of elastic material, can absorb impact force, reduce system vibration, the outer left side of the sealing sleeve 3 is fixedly connected with a sealing ring two 21, the outer right side of the sealing sleeve 3 is fixedly connected with the dustproof ring 22, the dustproof ring 22 is used for preventing dust and impurities from entering the sealing system.

[0029] Working principle: when using the hydraulic oil cylinder, first through the left side of the connecting ring one 8 and the right side of the mounting ring two 11, so that the device is fixedly installed, then through the installation groove 14 cooperates with the bolt 15, so that the oil pipe is connected with the oil inlet 12 through the mounting plate 13, then the hydraulic oil cylinder in the running process, the piston rod 2 will slide in the inner side of the cylinder barrel 1, then will make the installation sleeve 9 installed on the right side of the connecting ring one 8 will slide to the outer side of the cylinder sleeve 6, so that the cylinder sleeve 6 cooperates with the rubber pad 7 slides to the inner wall of the installation sleeve 9 and through the spring 5 to carry out elastic buffering, thereby reducing the damage of the connecting ring one 8 to the cylinder barrel 1, so that the effective buffering between the piston rod 2 and the cylinder barrel 1 can be carried out, then in the running process of the hydraulic oil cylinder, through the piston rod 2 drives the sealing ring 16 to slide in the inner side of the cylinder barrel 1, then will pass through the sealing ring one 17, the anti-wear ring 18 and the dirt-proof ring 19 outside the sealing ring 16 to make the oil is sealed to the inner right side of the cylinder barrel 1, will not leak, then through the buffer sleeve 20 makes the piston rod 2 buffer in the inner side of the cylinder barrel 1, then through the sealing ring two 21 to seal the left side of the cylinder barrel 1, reduces the entry of dust.

[0030] Finally, it should be noted that: the above only for preferred embodiments of the present application have, and is not used to limit the present application, although the foregoing detailed description of the present application is made to the foregoing embodiments, for the person skilled in the art, it still can be modified to the technical scheme recorded in the foregoing each embodiment, or to equivalent replacement of some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A cushioned hydraulic ram comprising a cylinder barrel (1) characterised in that: The inside of the cylinder (1) is slidably connected with a piston rod (2), the outside left side of the piston rod (2) is fixedly connected with a sealing sleeve (3), the left side of the sealing sleeve (3) is fixedly connected with two sleeve sleeves (4), the inside of the two sleeve sleeves (4) is provided with a spring (5), the inside of the two sleeve sleeves (4) is slidably connected with a cylinder sleeve (6), the left side of the two cylinder sleeves (6) is fixedly connected with a rubber pad (7), the left side of the piston rod (2) is fixedly connected with a connecting ring one (8), the right side of the connecting ring one (8) is fixedly connected with two mounting sleeves (9), the right side of the cylinder (1) is fixedly connected with a connecting block (10), the right side of the connecting block (10) is fixedly connected with a mounting ring two (11), the top of the cylinder (1) is fixedly connected with an oil inlet (12), and the top of the oil inlet (12) is fixedly connected with a mounting assembly.

2. A cushioned hydraulic cylinder according to claim 1, characterized in that: The mounting assembly comprises a mounting plate (13), and the bottom of the mounting plate (13) is fixedly connected to the top of the oil inlet (12). The top of the mounting plate (13) is provided with a mounting slot (14) at each corner, and the inside of the mounting slot (14) is threadedly connected with a bolt (15).

3. The cushioned hydraulic cylinder of claim 1, wherein: The right side of the piston rod (2) is fixedly connected with a sealing ring (16), the outside right side of the sealing ring (16) is fixedly connected with a sealing ring one (17), the outside of the sealing ring (16) is fixedly connected with an anti-wear ring (18), the left side of the sealing ring (16) is fixedly connected with a dirt-proof ring (19), the left side of the sealing ring (16) is fixedly connected with a buffer sleeve (20), the left side of the sealing sleeve (3) is fixedly connected with a sealing ring two (21), and the right side of the sealing sleeve (3) is fixedly connected with a dustproof ring (22).

4. The cushioned hydraulic cylinder of claim 1, wherein: One side of the spring (5) is fixedly connected in the inside of the sleeve sleeve (4), and the other side of the spring (5) is fixedly connected in the inside of the cylinder sleeve (6).

5. The cushioned hydraulic cylinder of claim 1, wherein: The outside left side of the cylinder sleeve (6) is slidably connected in the inside of the mounting sleeve (9), and the outside of the rubber pad (7) is slidably connected in the inside of the mounting sleeve (9).

6. A cushioned hydraulic cylinder as claimed in claim 3, wherein: The outside of the sealing ring (16) is slidably connected in the inside of the cylinder (1), and the outside of the buffer sleeve (20) is slidably connected in the inside of the cylinder (1).

7. A cushioned hydraulic cylinder as claimed in claim 3, wherein: The outside of the sealing ring one (17) is in contact with the inner wall of the cylinder (1), and the outside of the anti-wear ring (18) is in contact with the inside of the cylinder (1).

8. The cushioned hydraulic cylinder of claim 3, wherein: The outside of the dirt-proof ring (19) is in contact with the inner wall of the cylinder (1), and the outside of the dustproof ring (22) is in contact with the inner wall of the cylinder (1).

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