CN210397315U

CN210397315U - Hydraulic cylinder with mechanical locking function

Info

Publication number: CN210397315U
Application number: CN201921205510.7U
Authority: CN
Inventors: 权勤伟; 蔡春娟
Original assignee: Xuzhou Wuche Hydraulic Parts Co Ltd
Current assignee: Xuzhou Wuche Hydraulic Parts Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-04-24
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a hydraulic cylinder with mechanical locking function, including the cylinder cap, the front end oil inlet is installed to the up end of cylinder cap, the dirt proof ring is installed to the inner wall of cylinder cap front end, the cylinder is installed to one side of cylinder cap, the back go-between is installed to the lower extreme of cylinder, the oil feed flange is installed to the up end of back go-between, the cylinder be provided with back go-between, the fitting pin is installed to the bottom surface of back go-between, sealed lid is installed to the up end of fitting pin, the piston rod is installed to the inboard of cylinder cap, the surface of one side of piston rod is provided with the locking hole, preceding go-between is installed to the front end of piston rod, the surface mounting of piston rod has the lock sleeve, the nut is installed. The utility model discloses an improved the device, increased hydro-cylinder locking function to and it is more convenient when the hydro-cylinder is changed in the later stage.

Description

Hydraulic cylinder with mechanical locking function

Technical Field

The utility model relates to a hydraulic cylinder technical field of mechanical locking function specifically is a hydraulic cylinder with mechanical locking function.

Background

The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and does linear reciprocating motion (or swinging motion), has simple structure and reliable work, can omit a speed reducer when realizing reciprocating motion, has no transmission clearance and moves stably, thereby being widely applied to various mechanical hydraulic systems, and the output force of the hydraulic cylinder is in direct proportion to the effective area of a piston and the pressure difference between the two sides of the piston; the hydraulic cylinder basically comprises a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device, wherein the buffering device and the exhaust device are determined according to specific application occasions, and other devices are indispensable.

However, the existing hydraulic oil cylinder has a single structure, lacks the locking function of a hydraulic rod and is troublesome to replace at the later stage; therefore, the existing requirements are not met, and a hydraulic oil cylinder with a mechanical locking function is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic cylinder with mechanical locking function to the hydraulic cylinder single structure who proposes in solving above-mentioned background art lacks hydraulic stem locking function, and the trouble scheduling problem is changed in later stage.

In order to achieve the above object, the utility model provides a following technical scheme: a hydraulic cylinder with a mechanical locking function comprises a cylinder cover, wherein a front end oil inlet is installed at the upper end face of the cylinder cover, a dustproof ring is installed on the inner wall of the front end of the cylinder cover, a cylinder barrel is installed at one side of the cylinder cover, a rear connecting ring is installed at the lower end of the cylinder barrel, an oil inlet flange is installed at the upper end face of the rear connecting ring, a rear connecting ring is arranged on the cylinder barrel, a locking pin is installed at the bottom face of the rear connecting ring, a sealing cover is installed at the upper end face of the locking pin, a piston rod is installed on the inner side of the cylinder cover, a locking hole is formed in the outer surface of one side of the piston rod, a front connecting ring is installed at the front end of the piston rod, a locking sleeve is installed on the outer surface of the piston rod, a nut is installed at the other end, and the front end surface of the piston is provided with a buffer sleeve.

Preferably, the locking sleeve comprises an upper half part and a lower half part, the upper half part and the lower half part are fixed through four bolts, and the locking sleeve is fixed with the piston rod through clamping.

Preferably, the inner side of the lower end of the locking hole is provided with a rubber ring, the rubber ring is positioned on the outer surface of the lower end of the locking pin, and the locking pin and the locking hole are fixed in an inserting mode.

Preferably, the sealing cover is fixed with the locking hole through threads.

Preferably, the buffer sleeve is positioned between the rear end of the piston rod and the front end of the piston, and the buffer sleeve and the piston rod are fixed through clamping.

Preferably, the outer surface of the piston is provided with a sealing rubber ring, and the piston and the sealing rubber ring are fixed through a clamping groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the front end of the piston rod is divided into two parts, the front end and the rear end are connected through the clamping groove, after the insertion is completed, the two locking sleeves are sleeved on the outer surface of the clamping groove and fixed through the bolts, the design can ensure that the front connecting ring can be fixed with equipment before the device is reused, and only the hydraulic cylinder needs to be replaced when the device is installed and replaced at the later stage, so that unnecessary operation is reduced, and the installation time is shortened;

2. the utility model discloses a press the locking pin, make its surface of pegging graft at the piston rod to play the purpose of locking the piston rod, the surface of locking pin lower extreme is provided with the rubber ring, can guarantee to block that internal mechanism reveals, and the cushion collar can guarantee that the rear end part does not receive the oppression of piston rod, thereby plays the effect of protection, installs sealed rubber ring additional, can guarantee that the inside seal effect is showing more, guarantees that internal pressure keeps in certain extent.

Drawings

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

FIG. 2 is a cross-sectional view of the entire invention;

fig. 3 is a schematic structural view of the locking pin of the present invention.

In the figure: 1. a cylinder cover; 2. a piston rod; 3. a front connecting ring; 4. a front end oil inlet; 5. an oil inlet flange; 6. a locking pin; 7. a sealing cover; 8. a locking hole; 9. a nut; 10. a piston; 11. a buffer sleeve; 12. A dust ring; 13. an antiwear ring; 14. sealing the rubber ring; 15. a locking sleeve; 16. a cylinder barrel; 17. a rear connecting ring; 18. sealing the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: a hydraulic cylinder with a mechanical locking function comprises a cylinder cover 1, a front-end oil inlet 4 is installed on the upper end face of the cylinder cover 1, a dustproof ring 12 is installed on the inner wall of the front end of the cylinder cover 1, a cylinder barrel 16 is installed on one side of the cylinder cover 1, a rear connecting ring 17 is installed at the lower end of the cylinder barrel 16, an oil inlet flange 5 is installed on the upper end face of the rear connecting ring 17, a rear connecting ring 17 is arranged on the cylinder barrel 16, a locking pin 6 is installed on the bottom face of the rear connecting ring 17, the locking pin 6 is inserted into the outer surface of a piston rod 2 by pressing the locking pin 6, so that the purpose of locking the piston rod 2 is achieved, a rubber ring is arranged on the outer surface of the lower end of the locking pin 6, leakage of internal mechanisms can be guaranteed to be blocked, a sealing cover 7 is installed on the upper end face of the, the surface mounting of piston rod 2 has lock sleeve 15, the front end of piston rod 2 is divided into two parts, the front end passes through the draw-in groove with the rear end and is connected, peg graft and accomplish the back, at the surface of two lock sleeve 15 covers at the draw-in groove, it is fixed with it through the bolt, this design, can guarantee before the device reuses can be earlier with preceding go-between 3 and equipment fixed, in the later stage installation with when changing, only need change the pneumatic cylinder can, reduce unnecessary operation, reduce installation time, nut 9 is installed to the other end of piston rod 2, piston 10 is installed to one side of nut 9, the surface mounting of piston 10 one side has ring 13 that wear-resistants, sealed rubber ring 14 is installed to one side of ring 13 that wear-resistants, cushion sleeve 11.

Further, the lock sleeve 15 includes first half and lower half, first half and lower half are through four bolt fastening, lock sleeve 15 is fixed through the joint with piston rod 2, the front end of piston rod 2 divide into two parts, the front end passes through the draw-in groove with the rear end and is connected, peg graft and accomplish the back, 15 covers two lock sleeves at the surface of draw-in groove, it is fixed with it through the bolt, this design, can guarantee before the device reuses can be fixed with preceding go-between 3 and equipment earlier, when installation and change in the later stage, only need change the pneumatic cylinder can, reduce unnecessary operation, reduce installation time.

Further, the inboard of 8 lower extremes in locking hole is provided with the rubber ring, and the rubber ring is located the surface of 6 lower extremes in the fitting pin, and fitting pin 6 is fixed through pegging graft with locking hole 8, through pressing down fitting pin 6, makes its surface of pegging graft at piston rod 2 to play the purpose of locking piston rod 2, the surface of 6 lower extremes in fitting pin is provided with the rubber ring, can guarantee to block that internal mechanism reveals.

Furthermore, the sealing cover 7 and the locking hole 8 are fixed through threads, the sealing cover 7 is pressed downwards through rotation to abut against the locking pin 6 to be pressed downwards, and therefore the effect of locking the piston rod 2 is achieved, and the purpose of fixing and sealing the locking pin 6 is achieved.

Further, cushion collar 11 is located between the rear end of piston rod 2 and the front end of piston 10, and cushion collar 11 is fixed through the joint with piston rod 2, and cushion collar 11 can guarantee that the rear end part does not receive the oppression of piston rod 2 to play the effect of protection.

Further, the outer surface mounting of piston 10 has sealed rubber ring 14, and piston 10 passes through the draw-in groove with sealed rubber ring 14 and fixes, installs sealed rubber ring 14 additional, can guarantee that the internal seal effect is showing more, guarantees that internal pressure keeps in certain extent.

The working principle is as follows: when in use, the working state of the internal parts of the device is checked, firstly the buffer sleeve 11 is sleeved at the rear end of the piston rod 2, the sealing rubber ring 14 and the anti-wear ring 13 are sleeved at one side of the buffer sleeve 11, the nut 9 is screwed at the tail part of the piston rod 2 to play a fixing effect, then the piston rod 2 is inserted into the inner side of the cylinder barrel 16, the dustproof ring 12 is placed on the inner wall of the cylinder cover 1, finally the cylinder cover 1 and the cylinder barrel 16 are fixed through the clamping groove, the front end of the piston rod 2 is divided into two parts, the front end is connected with the rear end through the clamping groove, after the plugging is completed, the two locking sleeves 15 are sleeved on the outer surface of the clamping groove and fixed through bolts, the design can ensure that the front connecting ring 3 can be fixed with equipment before the device is reused, only the hydraulic cylinder needs to be replaced when the device is installed and replaced at the later stage, unnecessary operation is reduced, the locking pin 6 is inserted into the inner side of the cylinder cover 1, and the sealing cover 7 is installed at the upper end of the cylinder cover to complete installation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a hydraulic cylinder with mechanical locking function, includes cylinder cap (1), its characterized in that: the cylinder cover comprises a cylinder cover body (1), and is characterized in that a front-end oil inlet (4) is installed on the upper end face of the cylinder cover (1), a dust ring (12) is installed on the inner wall of the front end of the cylinder cover (1), a cylinder barrel (16) is installed on one side of the cylinder cover (1), a rear connecting ring (17) is installed at the lower end of the cylinder barrel (16), an oil inlet flange (5) is installed on the upper end face of the rear connecting ring (17), a rear connecting ring (17) is arranged on the cylinder barrel (16), a locking pin (6) is installed on the bottom face of the rear connecting ring (17), a sealing cover (7) is installed on the upper end face of the locking pin (6), a piston rod (2) is installed on the inner side of the cylinder cover (1), a locking hole (8) is formed in the outer surface of one side of the piston rod (2, nut (9) are installed to the other end of piston rod (2), piston (10) are installed to one side of nut (9), the surface mounting of piston (10) one side has ring (13) of wearing to wear, rubber seal (14) are installed to one side of ring (13) of wearing to wear, cushion collar (11) are installed to the preceding terminal surface of piston (10).

2. A hydraulic cylinder with mechanical locking function according to claim 1, characterized in that: the locking sleeve (15) comprises an upper half part and a lower half part, the upper half part and the lower half part are fixed through four bolts, and the locking sleeve (15) is fixed with the piston rod (2) through clamping.

3. A hydraulic cylinder with mechanical locking function according to claim 1, characterized in that: the inner side of the lower end of the locking hole (8) is provided with a rubber ring, the rubber ring is positioned on the outer surface of the lower end of the locking pin (6), and the locking pin (6) is fixed with the locking hole (8) in an inserting mode.

4. A hydraulic cylinder with mechanical locking function according to claim 1, characterized in that: the sealing cover (7) and the locking hole (8) are fixed through threads.

5. A hydraulic cylinder with mechanical locking function according to claim 1, characterized in that: buffer sleeve (11) are located between the rear end of piston rod (2) and the front end of piston (10), buffer sleeve (11) are fixed through the joint with piston rod (2).

6. A hydraulic cylinder with mechanical locking function according to claim 1, characterized in that: the outer surface of the piston (10) is provided with a sealing rubber ring (14), and the piston (10) and the sealing rubber ring (14) are fixed through a clamping groove.