CN218882655U

CN218882655U - Hydraulic oil circuit flow passage structure of multistage hydraulic oil cylinder

Info

Publication number: CN218882655U
Application number: CN202222850375.XU
Authority: CN
Inventors: 张丽平; 徐新东
Original assignee: Jiangyin Eternal Heavy Industry Co ltd
Current assignee: Jiangyin Eternal Heavy Industry Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-04-18
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a hydraulic oil path flow passage structure of a multistage hydraulic oil cylinder, which comprises a cylinder body, an oil path flow passage and an oil pipe; the oil way flow channel is arranged in the cylinder body, and the retraction of the cylinder body is controlled by injecting hydraulic oil into an oil cavity between the cylinder walls; the oil pipe is arranged in the center of the cylinder body, and the stretching of the cylinder body is controlled by injecting hydraulic oil into the oil cylinder. The device avoids the problem that the common oil way needs to be additionally provided with a pipeline outside the hydraulic oil cylinder, so that the equipment is large in size. The utility model discloses an oil circuit runner of hydraulic pressure oil circuit runner structure all sets up inside hydraulic cylinder, has reached whole small, compact structure's technological effect that occupies.

Description

Hydraulic oil circuit flow passage structure of multistage hydraulic oil cylinder

Technical Field

The utility model relates to a multistage hydraulic cylinder, more specifically say, it relates to a multistage hydraulic cylinder's hydraulic pressure oil circuit runner structure.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems.

At present, the double-acting multistage hydraulic oil cylinder on the market is quickly retracted by additionally arranging an oil return pipeline outside the hydraulic oil cylinder, and although the double-acting multistage hydraulic oil cylinder plays a role of quickly retracting, the double-acting multistage hydraulic oil cylinder also has the defect of large equipment volume.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a can realize reducing the multistage hydraulic cylinder's of equipment volume hydraulic circuit runner structure when retrieving double-acting multistage hydraulic cylinder fast.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a hydraulic oil way flow passage structure of a multistage hydraulic oil cylinder comprises an oil return oil way and an oil supply oil way; the oil return path consists of a top oil return port, a primary oil return pipe and a secondary oil return pipe; the oil supply path consists of a bottom oil supply port, a primary oil supply port, a secondary oil supply port and a tertiary oil supply port; the oil return oil way is positioned in the side wall of the cylinder body, and the oil supply oil way is positioned at the bottom of the cylinder body.

The utility model discloses further set up to: the top oil return port is positioned at the top of the primary oil cylinder and is connected with a primary oil return pipe, and the primary oil return pipe is connected with a primary oil cavity; the second-stage oil return pipe is connected with the first-stage oil cavity and the second-stage oil cavity.

The utility model discloses further set up to: the first-stage oil return pipe is located inside the side wall of the first-stage oil cylinder, and the second-stage oil return pipe is located inside the side wall of the second-stage oil cylinder.

The utility model discloses further set up to: the bottom oil supply port is sequentially connected with a primary oil supply pipe and a secondary oil supply pipe; the primary oil supply port transversely penetrates through the bottom of the tertiary oil cylinder and is connected with a primary oil supply pipe; the secondary oil supply port transversely penetrates through the bottom of the secondary oil cylinder and is connected with a secondary oil supply pipe; and the third-stage oil supply port penetrates through the bottom of the first-stage oil cylinder and is communicated into the first-stage oil cylinder.

The utility model discloses further set up to: the primary oil cylinder sleeve is arranged in the secondary oil cylinder, the secondary oil cylinder sleeve is arranged in the tertiary oil cylinder, and the primary oil supply pipe is sleeved in the secondary oil supply pipe.

Compared with the prior art, the utility model provides a multistage hydraulic cylinder's hydraulic pressure oil circuit runner structure possesses following beneficial effect:

an oil cavity is formed between two adjacent oil cylinders, an oil return pipeline is arranged in the oil cavity through the oil cavity, and oil is injected into the oil cavity; the external arrangement of an oil pipe is avoided, the equipment volume is reduced, and meanwhile, the oil is not required to be supplied by a hose; the beneficial effects of reducing the maintenance cost of the oil supply pipeline and having small equipment volume are realized.

Drawings

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

in the figure:

1. a top oil return port; 2. a primary oil return pipe; 3. a secondary oil return pipe; 4. a bottom oil supply port; 5. a primary oil supply port; 6. a secondary oil supply port; 7. a third-stage oil supply port; 8. a primary oil supply pipe; 9. a secondary oil supply pipe; 10. a primary oil cylinder; 11. a secondary oil cylinder; 12. a three-stage oil cylinder; 13. a first-stage oil cavity; 14. and a secondary oil chamber.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is to be noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless otherwise stated, the directions of use, such as "up and down", are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular, or gravitational directions; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the contour of the respective member itself, but the above directional terms are not intended to limit the present invention.

Referring to fig. 1, a hydraulic oil path flow passage structure of a multistage hydraulic oil cylinder comprises an oil return path and an oil supply path; the oil return path consists of a top oil return port 1, a primary oil return pipe 2 and a secondary oil return pipe 3; the oil supply path consists of a bottom oil supply port 4, a primary oil supply port 5, a secondary oil supply port 6 and a tertiary oil supply port 7; the oil return circuit is positioned in the side wall of the cylinder body, the oil supply circuit is positioned at the bottom of the cylinder body, and the oil supply circuit sequentially penetrates through the third-stage oil cylinder 12, the second-stage oil cylinder 11 and the first-stage oil cylinder 10.

The top oil return port 1 is positioned at the top of the first-stage oil cylinder 10 and used for supplying oil to the oil cavity when the multi-stage oil cylinder retracts, the top oil return port 1 is connected with the first-stage oil return pipe 2 and is led into the first-stage oil cavity 13, and oil is injected into the first-stage oil cavity 13 to achieve the purpose of retracting the first-stage oil cylinder 10; the primary oil return pipe 2 is connected with a primary oil cavity 13; the secondary oil return pipe 3 is connected with the primary oil cavity 13 and the secondary oil cavity 14, and oil is filled into the secondary oil cavity 14 to achieve the purpose of retracting the secondary oil cylinder 11.

The primary oil return pipe 2 is located inside the side wall of the primary oil cylinder 10, and the secondary oil return pipe 3 is located inside the side wall of the secondary oil cylinder 11, so that a built-in oil way is achieved, and the volume of the oil cylinder is reduced.

The bottom oil supply port 4 is sequentially connected with a primary oil supply pipe 8 and a secondary oil supply pipe 9, and the extension of each stage of oil cylinder is controlled through the oil supply pipes; the primary oil supply port 5 transversely penetrates through the bottom of the tertiary oil cylinder 12, is connected with the primary oil supply pipe 8 and is used for injecting oil into the tertiary oil cylinder 12; the secondary oil supply port 6 transversely penetrates through the bottom of the secondary oil cylinder 11, is connected with the secondary oil supply pipe 9 and is used for injecting oil into the secondary oil cylinder 11; the third-stage oil supply port 7 penetrates through the bottom of the first-stage oil cylinder 10, is led into the first-stage oil cylinder 10, and injects oil into the first-stage oil cylinder 10.

The primary oil cylinder 10 is sleeved in the secondary oil cylinder 11, the secondary oil cylinder 11 is sleeved in the tertiary oil cylinder 12, and the primary oil supply pipe 8 is sleeved in the secondary oil supply pipe 9.

It is to be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a multistage hydraulic cylinder's hydraulic pressure oil circuit runner structure which characterized in that: comprises an oil return oil way and an oil supply oil way; the oil return path consists of a top oil return port (1), a primary oil return pipe (2) and a secondary oil return pipe (3); the oil supply path consists of a bottom oil supply port (4), a primary oil supply port (5), a secondary oil supply port (6) and a tertiary oil supply port (7); the oil return oil circuit is located in the side wall of the cylinder body, and the oil supply oil circuit is located at the bottom of the cylinder body.

2. The hydraulic oil path flow passage structure of a multistage hydraulic oil cylinder as claimed in claim 1, characterized in that: the top oil return port (1) is positioned at the top of the primary oil cylinder (10), the top oil return port (1) is connected with a primary oil return pipe (2), and the primary oil return pipe (2) is connected with a primary oil cavity (13); the secondary oil return pipe (3) is connected with the primary oil cavity (13) and the secondary oil cavity (14).

3. The hydraulic oil path flow passage structure of a multistage hydraulic oil cylinder as claimed in claim 2, characterized in that: the primary oil return pipe (2) is located inside the side wall of the primary oil cylinder (10), and the secondary oil return pipe (3) is located inside the side wall of the secondary oil cylinder (11).

4. The hydraulic oil way flow passage structure of the multistage hydraulic oil cylinder as claimed in claim 3, characterized in that: the bottom oil supply port (4) is sequentially connected with a primary oil supply pipe (8) and a secondary oil supply pipe (9); the primary oil supply port (5) transversely penetrates through the bottom of the tertiary oil cylinder (12) and is connected with the primary oil supply pipe (8); the secondary oil supply port (6) transversely penetrates through the bottom of the secondary oil cylinder (11) and is connected with the secondary oil supply pipe (9); the three-level oil supply port (7) penetrates through the bottom of the first-level oil cylinder (10) and is communicated into the first-level oil cylinder (10).

5. The hydraulic oil way flow passage structure of the multistage hydraulic oil cylinder as claimed in claim 4, characterized in that: the primary oil cylinder (10) is sleeved in the secondary oil cylinder (11), the secondary oil cylinder (11) is sleeved in the tertiary oil cylinder (12), and the primary oil supply pipe (8) is sleeved in the secondary oil supply pipe (9).