CN216382072U

CN216382072U - Guide sleeve structure of oil cylinder

Info

Publication number: CN216382072U
Application number: CN202123244677.4U
Authority: CN
Inventors: 张萍; 管颖平; 杨朗军
Original assignee: Wuxi Hengli Hydraulic Pneumatic Co ltd
Current assignee: Wuxi Hengli Hydraulic Pneumatic Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-04-26
Anticipated expiration: 2031-12-22

Abstract

The utility model belongs to the technical field of oil cylinders, and particularly relates to a guide sleeve structure of an oil cylinder, which comprises a cylinder barrel, wherein a piston body is connected in the cylinder barrel in a sliding manner, a piston rod is arranged on the piston body, a guide sleeve is connected in the cylinder barrel in a sliding manner, the piston rod is connected in the guide sleeve in a sliding manner, the upper end of the guide sleeve is fixedly connected with a cutting sleeve, the cutting sleeve is sleeved with the cylinder barrel in a sliding manner, the cutting sleeve is connected with the piston rod in a sliding manner, a sealing ring is sleeved between the cutting sleeve and the guide sleeve together, the sealing ring is contacted with the cylinder barrel, the edge of the bottom of the cutting sleeve is fixedly connected with two symmetrically distributed metal deflector rods, and each metal deflector rod is fixedly connected with a clamping block. The piston body can be buffered by designing the movable groove, the sliding rod, the rubber buffer head, the second spring, the groove and other parts in the guide sleeve, so that the piston body is prevented from being damaged due to rigid contact between the piston body and the guide sleeve.

Description

Guide sleeve structure of oil cylinder

Technical Field

The utility model relates to the technical field of oil cylinders, in particular to a guide sleeve structure of an oil cylinder.

Background

The hydraulic oil cylinder is an actuating element which does linear reciprocating motion in a hydraulic transmission system and is a hydraulic actuating element which converts hydraulic energy into mechanical energy, the structural type of the hydraulic oil cylinder comprises three types of piston cylinders, plunger cylinders and swinging cylinders, the hydraulic oil cylinder is basically formed by a cylinder barrel, a cylinder cover, a piston rod and the like, and a guide sleeve is generally arranged at the top end of the cylinder barrel and plays a role in guiding the motion of the piston rod. However, the existing guide sleeve is inconvenient to mount and dismount, and the piston can be in hard contact with the guide sleeve during movement, so that the piston is damaged. Therefore, improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a guide sleeve structure of an oil cylinder, which solves the problems that the existing guide sleeve is inconvenient to mount and dismount, and a piston is hard to contact with the guide sleeve in the moving process, so that the piston is damaged.

In order to achieve the purpose, the utility model provides the following technical scheme: a guide sleeve structure of an oil cylinder comprises a cylinder barrel, wherein a piston body is connected in the cylinder barrel in a sliding manner, a piston rod is arranged on the piston body, a guide sleeve is connected in the cylinder barrel in a sliding manner, a piston rod is connected in the guide sleeve in a sliding manner, a cutting sleeve is fixedly connected to the upper end of the guide sleeve, the cutting sleeve is sleeved with the cylinder barrel in a sliding manner, the cutting sleeve is connected with the piston rod in a sliding manner, a sealing ring is sleeved between the cutting sleeve and the guide sleeve, the sealing ring is contacted with the cylinder barrel, two symmetrically-distributed metal deflector rods are fixedly connected to the bottom edge of the cutting sleeve, a clamping block is fixedly connected to each metal deflector rod, two symmetrically-distributed sleeves are fixedly connected to the outside of the cylinder barrel, a cushion block is connected in the sleeves in a sliding manner, the cushion block is contacted with the metal deflector rods, clamping grooves are formed in the sleeves, and clamping blocks are clamped in the clamping grooves, the sleeve is internally provided with a first spring, two movable grooves which are symmetrically distributed are formed in the guide sleeve, each movable groove is internally and slidably connected with a sliding rod, the bottom of each sliding rod is fixedly connected with a rubber buffering head, the rubber buffering heads are slidably connected with the guide sleeve, and the movable grooves are internally provided with second springs.

Preferably, one end of the second spring is fixedly connected with a sliding rod, and the other end of the second spring is fixedly connected with the inner surface of the movable groove.

Preferably, one end of the first spring is fixedly connected with a cushion block, and the other end of the first spring is fixedly connected with the inner surface of the sleeve.

Preferably, the guide sleeve is provided with a ring groove, a sealing ring is sleeved in the ring groove, and the sealing ring is in contact with the piston rod.

Preferably, the cylinder barrel is provided with two positioning grooves which are symmetrically distributed, the positioning grooves are connected with positioning pins in a sliding mode, the positioning pins are fixedly connected with the clamping sleeve, and the positioning pins are connected with the sealing ring in a sliding mode.

Preferably, the guide sleeve is provided with a groove, the groove is communicated with the movable groove, and a rubber buffer head is connected in the groove in a sliding manner.

Compared with the prior art, the utility model has the following beneficial effects:

1. the piston body can be buffered by designing the movable groove, the sliding rod, the rubber buffer head, the second spring, the groove and other parts in the guide sleeve, so that the piston body is prevented from being damaged due to rigid contact between the piston body and the guide sleeve.

2. According to the utility model, the positioning pin, the clamping sleeve, the metal deflector rod, the clamping block and other parts are designed on the basis of the guide sleeve and are matched with the positioning groove, the sleeve, the cushion block, the first spring, the clamping groove and other parts designed on the cylinder barrel, so that the guide sleeve can be quickly installed and fixed on the cylinder barrel, and the guide sleeve can be quickly detached at a later stage.

Drawings

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is a front cross-sectional view of FIG. 1 of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the portion B of FIG. 2 according to the present invention;

FIG. 5 is an enlarged view of the structure of the portion C of FIG. 2 according to the present invention;

FIG. 6 is a top view of the seal ring of FIG. 2 of the present invention.

In the figure: 1. a cylinder barrel; 2. a piston body; 3. a piston rod; 4. a guide sleeve; 5. a card sleeve; 6. positioning pins; 7. positioning a groove; 8. a seal ring; 9. a ring groove; 10. a seal ring; 11. a metal deflector rod; 12. a clamping block; 13. a sleeve; 14. cushion blocks; 15. a first spring; 16. a card slot; 17. a movable groove; 18. a slide bar; 19. a rubber cushion head; 20. a second spring; 21. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a guide sleeve structure of an oil cylinder comprises a cylinder barrel 1, a piston body 2 is slidably connected in the cylinder barrel 1, a piston rod 3 is arranged on the piston body 2, a guide sleeve 4 is slidably connected in the cylinder barrel 1, the piston rod 3 is slidably connected in the guide sleeve 4, a cutting sleeve 5 is fixedly connected to the upper end of the guide sleeve 4, the cutting sleeve 5 is slidably sleeved with the cylinder barrel 1, the cutting sleeve 5 is slidably connected with the piston rod 3, a sealing ring 8 is commonly sleeved between the cutting sleeve 5 and the guide sleeve 4, the sealing ring 8 is in contact with the cylinder barrel 1, two metal shift levers 11 which are symmetrically distributed are fixedly connected to the bottom edge of the cutting sleeve 5, a clamping block 12 is fixedly connected to each metal shift lever 11, two sleeves 13 which are symmetrically distributed are fixedly connected to the outside of the cylinder barrel 1, a cushion block 14 is slidably connected to each sleeve 13, the cushion block 14 is in contact with the metal shift lever 11, and a clamping groove 16 is formed on each sleeve 13, the clamping block 12 is clamped in the clamping groove 16, the first spring 15 is arranged in the sleeve 13, two movable grooves 17 which are symmetrically distributed are formed in the guide sleeve 4, a sliding rod 18 is connected in each movable groove 17 in a sliding mode, the bottom of each sliding rod 18 is fixedly connected with a rubber buffering head 19, each rubber buffering head 19 is connected with the guide sleeve 4 in a sliding mode, and the second spring 20 is arranged in each movable groove 17.

Referring to fig. 5, one end of the second spring 20 is fixedly connected to the sliding rod 18, and the other end of the second spring 20 is fixedly connected to the inner surface of the movable groove 17. The rubber buffer head 19 is provided with a buffer function by the design of the second spring 20.

Referring to fig. 4, one end of the first spring 15 is fixedly connected to the pad 14, and the other end of the first spring 15 is fixedly connected to the inner surface of the sleeve 13. By means of the design of the first spring 15, a reaction force can be exerted on the metal toggle lever 11.

Referring to fig. 3, the guide sleeve 4 is provided with a ring groove 9, a sealing ring 10 is sleeved in the ring groove 9, and the sealing ring 10 is in contact with the piston rod 3. Through the design of the sealing ring 10, the sealing function is realized between the guide sleeve 4 and the piston rod 3.

Referring to fig. 2, the cylinder barrel 1 is provided with two positioning grooves 7 symmetrically distributed, the positioning grooves 7 are slidably connected with positioning pins 6, the positioning pins 6 are fixedly connected with the ferrule 5, and the positioning pins 6 are slidably connected with the sealing ring 8.

Referring to fig. 5, the guide sleeve 4 is provided with a groove 21, the groove 21 is communicated with the movable slot 17, and the groove 21 is slidably connected with a rubber buffer head 19. The accommodation of the rubber buffer head 19 is facilitated by the groove 21.

The specific implementation process of the utility model is as follows: when the quick installation device is used, the piston body 2 and the piston rod 3 are plugged into the cylinder barrel 1, then the guide sleeve 4 is plugged into the cylinder barrel 1 after penetrating through the piston rod 3, at the moment, the clamping sleeve 5 on the guide sleeve 4 is sleeved outside the cylinder barrel 1, the positioning pin 6 on the clamping sleeve 5 enters the positioning groove 7 on the cylinder barrel 1, then certain downward pressure is applied to the clamping sleeve 5, the metal shifting rod 11 on the clamping sleeve 5 is inserted into the sleeve 13, the clamping block 12 on the metal shifting rod 11 is extruded by the inner wall of the sleeve 13, at the moment, the metal shifting rod 11 deforms, the cushion block 14 is driven to move and the cushion block 14 compresses the first spring 15 in the downward moving process of the metal shifting rod 11, when the clamping block 12 moves to be level with the clamping groove 16, the metal shifting rod 11 resets, the clamping block 12 is clamped into the clamping groove 16, then the pressure on the clamping sleeve 5 is removed, and then the quick installation and fixation of the guide sleeve 4 on the cylinder barrel 1 are completed, and piston body 2 is when the motion, can preferentially contact rubber buffering head 19, rubber buffering head 19 slides and drive slide bar 18 and slide in movable groove 17 in recess 21, and slide bar 18 is gliding while can compress second spring 20, second spring 20 has played fine cushioning effect, prevent the hard contact between piston body 2 and the uide bushing 4 and the damage that causes, the later stage only needs 11 ejecting draw-in grooves 16 of metal driving lever, first spring 15 can be with 11 jack-ups of metal driving lever, and then take out in 1 cylinder with uide bushing 4 through cutting ferrule 5, and is simple and convenient.

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. The utility model provides a uide bushing structure of hydro-cylinder, includes cylinder (1), its characterized in that: the piston cylinder is characterized in that a piston body (2) is connected in the cylinder barrel (1) in a sliding manner, a piston rod (3) is arranged on the piston body (2), a guide sleeve (4) is connected in the cylinder barrel (1) in a sliding manner, the piston rod (3) is connected in the guide sleeve (4) in a sliding manner, a cutting sleeve (5) is fixedly connected to the upper end of the guide sleeve (4), the cutting sleeve (5) is sleeved with the cylinder barrel (1) in a sliding manner, the cutting sleeve (5) is connected with the piston rod (3) in a sliding manner, a sealing ring (8) is sleeved between the cutting sleeve (5) and the guide sleeve (4) together, the sealing ring (8) is contacted with the cylinder barrel (1), two symmetrically distributed metal deflector rods (11) are fixedly connected to the bottom edge of the cutting sleeve (5), a clamping block (12) is fixedly connected to each metal deflector rod (11), two symmetrically distributed sleeves (13) are fixedly connected to the outside of the cylinder barrel (1), every sliding connection has cushion (14) in sleeve (13), cushion (14) and metal driving lever (11) contact, draw-in groove (16) have been seted up on sleeve (13), the joint has fixture block (12) in draw-in groove (16), be provided with first spring (15) in sleeve (13), set up activity groove (17) of two symmetric distributions in uide bushing (4), every sliding connection has slide bar (18) in activity groove (17), the bottom fixedly connected with rubber buffer head (19) of slide bar (18), rubber buffer head (19) and uide bushing (4) sliding connection, be provided with second spring (20) in activity groove (17).

2. The guide sleeve structure of the oil cylinder according to claim 1, characterized in that: one end of the second spring (20) is fixedly connected with a sliding rod (18), and the other end of the second spring (20) is fixedly connected with the inner surface of the movable groove (17).

3. The guide sleeve structure of the oil cylinder according to claim 1, characterized in that: one end of the first spring (15) is fixedly connected with a cushion block (14), and the other end of the first spring (15) is fixedly connected to the inner surface of the sleeve (13).

4. The guide sleeve structure of the oil cylinder according to claim 1, characterized in that: the guide sleeve (4) is provided with an annular groove (9), a sealing ring (10) is sleeved in the annular groove (9), and the sealing ring (10) is in contact with the piston rod (3).

5. The guide sleeve structure of the oil cylinder according to claim 1, characterized in that: the cylinder barrel (1) is provided with two symmetrically distributed positioning grooves (7), positioning pins (6) are connected in the positioning grooves (7) in a sliding mode, the positioning pins (6) are fixedly connected with the clamping sleeve (5), and the positioning pins (6) are connected with the sealing ring (8) in a sliding mode.

6. The guide sleeve structure of the oil cylinder according to claim 1, characterized in that: a groove (21) is formed in the guide sleeve (4), the groove (21) is communicated with the movable groove (17), and a rubber buffer head (19) is connected in the groove (21) in a sliding mode.