CN210509797U

CN210509797U - Oil cylinder for pile machine

Info

Publication number: CN210509797U
Application number: CN201921577634.8U
Authority: CN
Inventors: 王凤良; 凌国滨; 杨小林
Original assignee: Shandong Zhuoli Pile Machine Co ltd
Current assignee: Shandong Zhuoli Pile Machine Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-12
Anticipated expiration: 2029-09-20

Abstract

The utility model provides a hydro-cylinder for stake machine, it has solved current jar pole in stake machine work progress and has pulled easily to shorten the technical problem of the life of hydro-cylinder. The oil cylinder is provided with a piston rod and a ball head, the upper end of the piston rod is connected with an integrated block, the integrated block is a channel for oil inlet and outlet of the oil cylinder, an oil inlet and an oil outlet are formed in the integrated block, an oil pipe is arranged in an inner cavity of the piston rod, the oil inlet is connected with the oil pipe, the outer side of the piston rod is connected with an oil cylinder barrel, the oil outlet is connected with an upper cavity of the oil cylinder barrel through a pipeline, a piston assembly is connected to the lower end of the piston rod and moves along with the piston, the. The utility model discloses simple structure, it is reasonable to use, the hydro-cylinder is difficult to the damage in the construction, extension hydro-cylinder life.

Description

Oil cylinder for pile machine

Technical Field

The utility model relates to a stake machine auxiliary assembly technical field, concretely relates to hydro-cylinder for stake machine.

Background

At present, with the gradual development of domestic construction, the depth of a pile foundation is increased, soil brought out by a drill rod in the construction of a pile machine is higher and higher, a cylinder rod of a support leg cylinder of the pile machine is buried in the soil, and the displacement of the pile machine is seriously hindered.

SUMMERY OF THE UTILITY MODEL

The utility model discloses be exactly to in the current stake machine work progress, the jar pole is strained easily to shorten the technical problem of the life of hydro-cylinder, provide a difficult hydro-cylinder for stake machine of damage in simple structure, the construction.

For solving above-mentioned technical problem, for this reason the utility model discloses be equipped with piston rod and bulb, the upper end of piston rod is connected with the manifold block, the manifold block is the passageway that the hydro-cylinder went into oil, be provided with oil inlet and oil-out on the manifold block, piston rod inner chamber is equipped with oil pipe, the oil inlet is connected with oil pipe, the piston rod outside is connected with the oil cylinder section of thick bamboo, the oil-out passes through the pipeline and is connected with the epicoele of oil cylinder section of thick bamboo, the piston rod lower extreme is connected with the piston assembly, the piston is followed to the piston assembly and.

Preferably, the integrated block is provided with a pin shaft mounting hole, and the integrated block is fixedly connected with the pile machine support through a pin shaft through the pin shaft mounting hole.

Preferably, the piston is provided with a dustproof sealing ring for sealing the upper cavity and the lower cavity of the oil cylinder.

Preferably, the oil pipe penetrates through the piston rod, and the lower end of the oil pipe is connected with the lower cavity of the oil cylinder barrel.

Preferably, the inner surface of the oil cylinder barrel is provided with a hardened layer surface.

Preferably, the ball head is fixedly connected with the fixing seat through the ball head support, the polytetrafluoroethylene plate is arranged on the fixing seat, and the polytetrafluoroethylene plate is connected with the ball head support.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model has simple structure, reasonable use and high reliability, and when the piston rod moves, because the oil cylinder barrel is arranged at the lower end, the technical problem that the service life of the oil cylinder is shortened due to the fact that the oil cylinder rod is damaged by strain because the oil cylinder barrel is exposed in the earth in the construction of the existing pile machine is solved, thereby protecting the oil cylinder rod and ensuring that the oil cylinder is not easy to damage in the using process; and because the inner surface of the oil cylinder barrel forms a hardened layer surface by rolling, the friction between the piston and the cylinder barrel is not easy to strain the cylinder body, and the service life of the oil cylinder is prolonged.

Drawings

Fig. 1 is a schematic structural view of the retracted state of the oil cylinder of the present invention;

FIG. 2 is a schematic structural view of the extending state of the oil cylinder of the present invention;

fig. 3 is a schematic structural view of the ball head support of the present invention.

The symbols in the figures indicate:

1. a piston rod; 2. integrating the blocks; 3. an oil inlet; 4. an oil outlet; 5. an oil pipe; 6. an oil cylinder barrel; 7. a piston assembly; 8. a pin shaft mounting hole; 9. a ball head; 10. a base; 11. a support; 12. a ball head support; 13. a fixed seat; 14. a polytetrafluoroethylene sheet.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The terms used in the utility model are conventional terms in the industry if no special provisions are made.

As shown in fig. 1-3, the utility model provides a cylinder for pile machine, which is provided with a piston rod 1, the piston rod 1 drives the piston to move up and down. The upper end of the piston rod 1 is connected with an integrated block 2, the integrated block 2 is a channel for oil inlet and outlet of the oil cylinder, and the integrated block 2 is welded with the piston rod 1. An oil inlet 3 and an oil outlet 4 are arranged on the manifold block 2, the oil inlet and the oil outlet are arranged together, and the outside can be connected with various valve block components together.

The integrated block 2 is provided with a pin shaft mounting hole 8, and the integrated block 2 is fixedly connected with the pile machine support through a pin shaft through the pin shaft mounting hole 8, namely can be mounted with the pile machine support leg swing arm through a middle pin hole. An oil pipe 5 is arranged in the inner cavity of the piston rod 1, the oil inlet 3 is connected with the oil pipe 5, hydraulic oil enters the lower cavity of the oil cylinder along the oil pipe 5 in the piston rod 1 through the oil inlet 3, and the piston assembly 7 is pushed to reciprocate up and down under the thrust of the hydraulic oil.

The outside of the piston rod 1 is connected with an oil cylinder barrel 6, the oil cylinder barrel 6 is a shell of the oil cylinder, and an inner cavity of the oil cylinder barrel 6 provides a moving range for the piston. The oil outlet 4 is connected with the upper cavity of the oil cylinder barrel 6 through a pipeline, the oil pipe 5 penetrates through the piston rod 1, and the lower end of the oil pipe is connected with the lower cavity of the oil cylinder barrel 6. The lower end of the piston rod 1 is connected with a piston assembly 7, and the piston assembly 7 moves along with the piston.

Furthermore, the inner hole of the oil cylinder barrel 6 is subjected to deep hole boring, rough machining and rolling, and the inner surface of the oil cylinder barrel 6 forms a hardened layer surface due to rolling, so that the cylinder body is not easily damaged by friction between the piston and the cylinder barrel, the sealing performance of an oil seal can be effectively improved, and the service life of the oil cylinder is prolonged.

The bottom of the oil cylinder barrel 6 is provided with a ball head 9, so that the cylinder barrel can do axial reciprocating motion along the axis of the piston rod 1 under the traction of external force by the ball head 9. Bulb 9 bottom is equipped with base 10 and support 11, and bulb 9 passes through bulb support 12 and fixing base 13 fixed connection, is provided with polytetrafluoroethylene board 14 on the fixing base 13, polytetrafluoroethylene board 14 and bulb support 12 fixed connection, and bulb support 12 and polytetrafluoroethylene board 14 all set up in fixing base 13, have increased the stability of bulb through bulb support. The oil cylinder is supported by the base 10 and the support 11, so that the oil cylinder has better stability.

Furthermore, a dustproof sealing ring is arranged on the piston assembly and used for sealing the upper cavity and the lower cavity of the oil cylinder.

As shown in fig. 1, when hydraulic oil enters the lower cavity of the oil cylinder through the oil inlet 3, the piston assembly is pushed to move upwards as the integrated block 2 is fixed with the pile driver through the pin shaft, and the hydraulic oil in the upper cavity flows back to the oil tank through the oil outlet 4; the oil cylinder tube 6 moves downward to be in the extended state of fig. 2. Conversely, when the hydraulic oil enters the oil cylinder from the oil inlet 3, the oil cylinder is in a withdrawing state. Because the oil cylinder barrel 6 is arranged at the lower end, an oil cylinder rod is protected, and the service life of the oil cylinder is prolonged.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. The utility model provides a stake machine hydro-cylinder, its is equipped with piston rod and bulb, its characterized in that, the upper end of piston rod is connected with the manifold block, the manifold block is the passageway that the hydro-cylinder went into oil, be provided with oil inlet and oil-out on the manifold block, the piston rod inner chamber is equipped with oil pipe, the oil inlet is connected with oil pipe, the piston rod outside is connected with the oil cylinder section of thick bamboo, the oil-out passes through the pipeline and is connected with the epicoele of oil cylinder section of thick bamboo, the piston rod lower extreme is connected with the piston assembly, and the piston assembly follows the piston and moves, the bulb sets up the bottom at.

2. The oil cylinder for the pile machine as claimed in claim 1, wherein the integrated block is provided with a pin shaft mounting hole, and the integrated block is fixedly connected with the pile machine support through a pin shaft by the pin shaft mounting hole.

3. The oil cylinder for the pile machine as claimed in claim 1, wherein the piston is provided with a dustproof sealing ring for sealing the upper and lower cavities of the oil cylinder.

4. The oil cylinder for the pile machine as claimed in claim 1, wherein the oil pipe penetrates through the piston rod, and the lower end of the oil pipe is connected with the lower cavity of the oil cylinder barrel.

5. The oil cylinder for the pile machine as claimed in claim 1, wherein the inner surface of the oil cylinder barrel is provided with a hardened layer surface.

6. The oil cylinder for the pile machine according to claim 1, wherein the ball head is fixedly connected with a fixed seat through a ball head support, a polytetrafluoroethylene plate is arranged on the fixed seat, and the polytetrafluoroethylene plate is connected with the ball head support.