CN218644570U

CN218644570U - Anti-shearing hydraulic oil cylinder

Info

Publication number: CN218644570U
Application number: CN202222667493.7U
Authority: CN
Inventors: 王金海; 管灵玲; 李文鹏
Original assignee: Foshan Xinhe Machinery Equipment Co ltd
Current assignee: Foshan Xinhe Machinery Equipment Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-03-17
Anticipated expiration: 2032-10-11

Abstract

The utility model belongs to the technical field of hydraulic cylinder, especially, relate to an anti-shear formula hydraulic cylinder, include, including hydro-cylinder and footstock, footstock fixed connection is in the top of hydro-cylinder, the top of footstock is provided with multilayer sealing device, multilayer sealing device includes seal receptacle, inner ring, sealing ring, rubber seal, first sealed pad, fixing bolt, the surface of hydro-cylinder is provided with protection device, protection device includes protective housing, connecting seat, bolt, second nut. This anti-shear hydraulic cylinder through setting up multilayer sealing device, a plurality of sealing rings cooperate, avoids hydro-cylinder motion in-process pressure to leak, has also avoided long-time use simultaneously, causes the condition emergence of the slow oil impregnate of hydro-cylinder, has prolonged hydraulic cylinder's life, can strengthen the shearing resistance of hydro-cylinder through setting up at the outlying protective housing of hydro-cylinder, plays the effect of reinforcement protection.

Description

Anti-shear hydraulic oil cylinder

Technical Field

The utility model relates to a hydraulic cylinder technical field specifically is an anti-shear type hydraulic cylinder.

Background

The hydraulic cylinder is a pressure finishing process, which utilizes the cold plasticity characteristic of metal at normal temperature, utilizes a rolling tool to apply a certain pressure on the surface of a workpiece, so that the surface metal of the workpiece generates plastic flow and is filled into original residual low valleys, thereby reducing the roughness value of the surface of the workpiece.

When the sealing assembly anti-shearing hydraulic oil cylinder is used, the bottom of a piston rod is connected with a cylinder barrel through a positioning assembly, a positioning cavity is formed in the side wall of the cylinder barrel, the positioning assembly is inserted into the positioning cavity in a sliding mode and comprises a connecting rod, a fixing block and balls, the balls are connected to two sides of the fixing block in a rolling mode, the balls are semi-embedded, the outermost ends of the balls are tangent to the inner wall of the positioning cavity, the piston rod moves up and down in a reciprocating mode and drives the connecting rod in the positioning assembly to drive the balls on the fixing block to slide up and down in the inner wall of the positioning cavity in a matched mode, the piston rod is limited to perform steering movement, accordingly, steering abrasion of a sealing ring is avoided, the air tightness of the hydraulic oil cylinder is guaranteed, the hydraulic oil cylinder operates normally, the service life is prolonged, a limiting block is installed at the bottom end inside the positioning cavity, a limiting ring is installed at the top end inside the positioning cavity, the connecting rod is effectively prevented from exceeding the stroke range through the limiting block and the limiting ring, and the working performance of the positioning assembly is guaranteed; however, the anti-shear hydraulic oil cylinder with the sealing assembly in the above application has a poor sealing effect, and may cause pressure leakage or oil leakage, so that certain limitations exist.

To this end, it is desirable to provide an anti-shear hydraulic ram.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-shear type hydraulic cylinder to solve the sealed assembly anti-shear type hydraulic cylinder that provides in the above-mentioned background art, sealed effect is relatively poor, may cause the problem that the condition of pressure leakage or oil impregnate takes place.

In order to achieve the above object, the utility model provides a following technical scheme: the anti-shearing hydraulic oil cylinder comprises an oil cylinder and a top seat, wherein the top seat is fixedly connected to the top of the oil cylinder, and a plurality of layers of sealing devices are arranged above the top seat.

Multilayer sealing device includes seal receptacle, inner ring, sealing ring, rubber seal, first sealed pad, fixing bolt, the seal receptacle sets up in the top of footstock, the inner ring cup joints the inner wall with the seal receptacle, the sealing ring sets up in the top junction of seal receptacle and inner ring, two rubber seal places in inner ring inside, first sealed pad sets up between the top of the bottom of seal receptacle and footstock, fixing bolt threaded connection is in the top of seal receptacle, and extends into the inside of footstock.

The improved structure is characterized in that a sealing groove is formed in the upper surface of the sealing seat, the sealing ring is placed in the sealing groove, two rubber sealing grooves are formed in the inner portion of the inner ring, and the rubber sealing ring is placed in the rubber sealing grooves, so that the oil leakage condition in the using process is avoided.

The improved structure is characterized in that the upper surface of the sealing seat is provided with a plurality of thread grooves, and the thread grooves penetrate through the sealing seat and extend to the inside of the top seat, so that the top seat and the sealing seat are connected more firmly.

The improved structure is characterized in that a piston rod is arranged inside the oil cylinder, an internal thread is formed in the top of the piston rod, a connecting rod is connected to the internal thread of the thread groove, an ear ring is fixedly connected to the top of the connecting rod, and an anti-slip pad is arranged at the joint of the piston rod and the connecting rod.

The improved structure is characterized in that a piston is fixedly connected to the lower portion of the outer surface of the piston rod, two groups of sealing grooves are formed in the outer surface of the piston, a second sealing pad is placed inside each sealing groove, and a first nut is connected to the bottom of the piston rod in a threaded mode.

The improved structure of the oil cylinder is characterized in that the bottom of the oil cylinder is fixedly connected with a base, an oil inlet is formed in the outer surface of the right side of the base, a nut groove is formed in the base, the oil inlet is communicated with the nut groove, an oil outlet is formed in the outer surface of the right side of the top seat, buffering cushions are arranged on the upper surface and the lower surface of the oil cylinder, force is removed from a moving piston, and a buffering effect is achieved.

The further improvement lies in that the outer surface of the oil cylinder is provided with a protection device.

Protection device includes protective housing, connecting seat, bolt, second nut, the protective housing sets up in the outside of hydro-cylinder, two connecting seat fixed connection is in the surface left side of protective housing below, the connecting hole has been seted up at the top of connecting seat, the inside threaded connection of connecting hole has the bolt, the bottom threaded connection of bolt has the second nut, makes the more inseparable laminating of protective housing at the surface of hydro-cylinder, protection hydro-cylinder.

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

1. this anti-shear hydraulic cylinder through setting up multilayer sealing device, a plurality of sealing rings cooperate, avoids hydro-cylinder motion in-process pressure to leak, has also avoided long-time use simultaneously, causes the condition emergence of the slow oil impregnate of hydro-cylinder, has prolonged hydraulic cylinder's life.

2. This anti-shear hydraulic cylinder through setting up the blotter, when the piston moved in the hydro-cylinder, reduces the impact of piston to the hydro-cylinder both ends, unloads power to it, has reached the effect of buffering, has protected piston and hydro-cylinder, can strengthen the shearing resistance of hydro-cylinder through setting up at the peripheral protective housing of hydro-cylinder, plays the effect of reinforcement protection.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is a schematic view of the sealing device of the present invention;

fig. 4 is the schematic view of the split structure of the connecting rod of the present invention.

In the figure: 1. an oil cylinder; 2. a top seat; 3. a multilayer sealing device; 301. a sealing seat; 302. an inner ring; 303. a seal ring; 304. a rubber seal ring; 305. a first gasket; 306. fixing the bolt; 401. a piston rod; 402. a connecting rod; 403. an ear ring; 404. a non-slip mat; 405. a piston; 406. a second gasket; 407. a first nut; 501. a base; 502. an oil inlet; 503. an oil outlet; 504. a cushion pad; 6. a protection device; 601. a protective shell; 602. a connecting seat; 603. a bolt; 604. a second nut.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an anti-shearing hydraulic oil cylinder comprises an oil cylinder 1 and a top seat 2, wherein the top seat 2 is fixedly connected to the top of the oil cylinder 1, and a plurality of layers of sealing devices 3 are arranged above the top seat 2.

Multilayer sealing device 3 includes seal receptacle 301, inner ring 302, sealing ring 303, rubber seal 304, first sealed 305 that fills up, fixing bolt 306, seal receptacle 301 sets up in the top of footstock 2, a plurality of thread groove has been seted up to seal receptacle 301's upper surface, a plurality of thread groove runs through the inside that seal receptacle 301 extends to footstock 2, it is more firm to make footstock 2 be connected with seal receptacle 301, inner ring 302 cup joints the inner wall with seal receptacle 301, sealing ring 303 sets up in the top junction of seal receptacle 301 and inner ring 302, the seal groove has been seted up to seal receptacle 301's upper surface, sealing ring 303 places in the inside of seal groove, two rubber seal 304 place in the inside of inner ring 302, two rubber seal grooves have been seted up to inner ring 302's inside, rubber seal 304 places in the inside of rubber seal groove, avoid appearing the condition of oil seepage in the use, first sealed 305 that fills up sets up between the bottom of seal receptacle 301 and the top of footstock 2, fixing bolt 306 threaded connection is in the top of seal receptacle 301, and extend into the inside of footstock 2.

A piston rod 401 is arranged inside the oil cylinder 1, an internal thread is formed in the top of the piston rod 401, a connecting rod 402 is in threaded connection with the internal thread of the thread groove, an ear ring 403 is fixedly connected to the top of the connecting rod 402, and an anti-skid pad 404 is arranged at the joint of the piston rod 401 and the connecting rod 402. Piston rod 401's surface below fixedly connected with piston 405, two sets of seal grooves have also been seted up to piston 405's surface, and the second sealed pad 406 has been placed to the inside of seal groove, and piston rod 401's bottom threaded connection has first nut 407.

The bottom of the oil cylinder 1 is fixedly connected with a base 501, an oil inlet 502 is formed in the outer surface of the right side of the base 501, a nut groove is formed in the base 501, the oil inlet 502 is communicated with the nut groove, an oil outlet 503 is formed in the outer surface of the right side of the top base 2, cushion pads 504 are arranged on the upper surface and the lower surface of the oil cylinder 1, and the piston 405 in motion is unloaded to achieve the buffering effect.

The outer surface of the oil cylinder 1 is provided with a protection device 6.

Protection device 6 includes protective housing 601, connecting seat 602, bolt 603, second nut 604, protective housing 601 sets up in hydro-cylinder 1's outside, two connecting seat 602 fixed connection in the surface left side of protective housing 601 from top to bottom, the connecting hole has been seted up at the top of connecting seat 602, the inside threaded connection of connecting hole has bolt 603, the bottom threaded connection of bolt 603 has second nut 604, make the more inseparable laminating of protective housing 601 at hydro-cylinder 1's surface, protection hydro-cylinder 1.

When the oil cylinder device is used, the piston 405 is driven to move in the oil cylinder 1 through the matching of the oil inlet 502 and the oil outlet 503, the buffering and force unloading effects are realized on the collision generated by the movement of the piston 405 in the oil cylinder 1 by arranging the buffering cushions 504 at the upper end and the lower end of the inner wall of the oil cylinder 1, the piston 405 and the oil cylinder 1 are protected, the service life of the oil cylinder device is prolonged, the sealing seat 301 and the top seat 2 are connected through the fixing bolt 306, the connection stability of the sealing seat and the top seat is enhanced, the rubber sealing rings 304 are placed on the inner ring 302, the pressure leakage in the movement process of the oil cylinder 1 is avoided, meanwhile, the long-time use is also avoided, the condition that the oil cylinder 1 slowly leaks oil is caused, the service life of the oil cylinder 1 is prolonged, the shearing resistance of the oil cylinder 1 can be enhanced through the protective shell 601 arranged on the periphery of the oil cylinder 1, and the reinforcing and protecting effects are achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. The utility model provides an anti-shear hydraulic cylinder, includes hydro-cylinder (1) and footstock (2), footstock (2) fixed connection is in the top of hydro-cylinder (1), its characterized in that: a plurality of layers of sealing devices (3) are arranged above the top seat (2);

multilayer sealing device (3) are including seal receptacle (301), inner ring (302), sealing ring (303), rubber seal (304), first sealed pad (305), fixing bolt (306), seal receptacle (301) sets up in the top of footstock (2), inner ring (302) cup joint with the inner wall of seal receptacle (301), sealing ring (303) set up in the top junction of seal receptacle (301) and inner ring (302), two rubber seal (304) are placed in the inside of inner ring (302), first sealed pad (305) set up between the bottom of seal receptacle (301) and the top of footstock (2), fixing bolt (306) threaded connection is in the top of seal receptacle (301), and extends into the inside of footstock (2).

2. The anti-shear hydraulic ram of claim 1, wherein: the upper surface of seal receptacle (301) has seted up the seal groove, sealing ring (303) are placed in the inside of seal groove, two rubber seal grooves have been seted up to the inside of inner ring (302), rubber seal (304) are placed in the inside of rubber seal groove.

3. The anti-shear hydraulic ram of claim 1, wherein: a plurality of thread groove has been seted up to the upper surface of seal receptacle (301), a plurality of the thread groove runs through the inside that seal receptacle (301) extended to footstock (2).

4. An anti-shear hydraulic ram according to claim 3, wherein: the novel oil cylinder is characterized in that a piston rod (401) is arranged inside the oil cylinder (1), an internal thread is formed in the top of the piston rod (401), a connecting rod (402) is connected to the internal thread of the thread groove, an earring (403) is fixedly connected to the top of the connecting rod (402), and an anti-slip pad (404) is arranged at the joint of the piston rod (401) and the connecting rod (402).

5. An anti-shear hydraulic ram according to claim 4, wherein: the utility model discloses a piston rod (401) is characterized in that the surface below fixedly connected with piston (405) of piston rod (401), two sets of seal grooves have also been seted up to the surface of piston (405), second sealed pad (406) have been placed to the inside of seal groove, the bottom threaded connection of piston rod (401) has first nut (407).

6. An anti-shear hydraulic ram as claimed in claim 1, wherein: the oil cylinder is characterized in that a base (501) is fixedly connected to the bottom of the oil cylinder (1), an oil inlet (502) is formed in the outer surface of the right side of the base (501), a nut groove is formed in the base (501), the oil inlet (502) is communicated with the nut groove, an oil outlet (503) is formed in the outer surface of the right side of the top seat (2), and cushion pads (504) are arranged on the upper surface and the lower surface of the oil cylinder (1).

7. An anti-shear hydraulic ram as claimed in claim 1, wherein: a protection device (6) is arranged on the outer surface of the oil cylinder (1);

protection device (6) include protective housing (601), connecting seat (602), bolt (603), second nut (604), protective housing (601) sets up in the outside of hydro-cylinder (1), two connecting seat (602) fixed connection is in the surface left side of protective housing (601) below from top to bottom, the connecting hole has been seted up at the top of connecting seat (602), the inside threaded connection of connecting hole has bolt (603), the bottom threaded connection of bolt (603) has second nut (604).