CN216638745U

CN216638745U - Hydraulic telescopic suspension arm

Info

Publication number: CN216638745U
Application number: CN202123270967.6U
Authority: CN
Inventors: 刘晟宇; 陈志辉; 奉振锋; 伍民
Original assignee: Guilin Shengcheng Machinery Co ltd
Current assignee: Guilin Shengcheng Machinery Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-31
Anticipated expiration: 2031-12-23

Abstract

The utility model relates to a hydraulic telescopic suspension arm which comprises a connecting frame, a primary fixed arm, a secondary telescopic arm and a tertiary telescopic arm, wherein one end of the primary fixed arm is fixedly connected with the connecting frame, and the other end of the primary fixed arm is obliquely and upwards arranged; one end of the second-stage telescopic arm is arranged in the inner cavity of the first-stage fixed arm, and the other end extends out of the first-stage fixed arm; one end part of the third-stage telescopic arm is arranged in the inner cavity of the second-stage telescopic arm, and the other end part of the third-stage telescopic arm extends out of the second-stage telescopic arm; the first-stage fixed arm is provided with an oil cylinder, the lower end part of the oil cylinder is hinged with the lower end part of the first-stage fixed arm, the upper end part of the oil cylinder is rotatably connected with the upper end part of the first-stage fixed arm, and the telescopic end of the oil cylinder is hinged with the upper end part of the second-stage telescopic arm; the upper end of the three-stage telescopic arm is fixedly provided with a hoisting frame. Compared with the prior art, the utility model has the advantages of simple and reliable structure, long service life, wide application, labor and material conservation, improvement on working efficiency, and simple and safe operation.

Description

Hydraulic telescopic suspension arm

Technical Field

The utility model relates to the technical field of suspension arms, in particular to a hydraulic telescopic suspension arm.

Background

With the continuous development of agriculture, animal husbandry and forestry and wood industry, more and more things which cannot meet the development requirement of manpower need to be processed by a machine to meet the working requirement, and the existing large-scale crane is heavy and expensive, is not suitable for general agriculture, animal husbandry and forestry and wood industry, and can cause economic burden. It is necessary to solve these problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, an object of the present invention is to provide a hydraulic telescopic boom which is simple and reliable, has a long service life, is widely applicable, improves the working efficiency, and is easy and safe to operate.

The technical scheme for solving the technical problems is as follows: a hydraulic telescopic suspension arm comprises a connecting frame, a primary fixed arm, a secondary telescopic arm and a tertiary telescopic arm, wherein one end of the primary fixed arm is fixedly connected with the connecting frame, and the other end of the primary fixed arm is obliquely and upwards arranged; one end of the secondary telescopic arm is arranged in the inner cavity of the primary fixed arm, and the other end of the secondary telescopic arm extends out of the primary fixed arm; one end part of the three-stage telescopic arm is arranged in the inner cavity of the two-stage telescopic arm, and the other end part of the three-stage telescopic arm extends out of the two-stage telescopic arm;

the first-stage fixed arm is provided with an oil cylinder, the lower end part of the oil cylinder is hinged with the lower end part of the first-stage fixed arm, the upper end part of the oil cylinder is rotatably connected with the upper end part of the first-stage fixed arm, and the telescopic end of the oil cylinder is hinged with the upper end part of the second-stage telescopic arm;

and the upper end part of the three-stage telescopic arm is fixedly provided with a hoisting frame.

The utility model has the beneficial effects that: the hydraulic telescopic suspension arm formed by the connecting frame, the primary fixed arm, the secondary telescopic arm and the tertiary telescopic arm is simple and reliable in structure and long in service life, and the connecting frame is suitable for various tractor types and is widely applied; is economical and practical; the hydraulic power output is more stable and reliable, the hydraulic power is manually matched for use, the finished product is reduced, the manpower and material resources are saved, and the working efficiency is improved; the installation is convenient and fast, and the operation is simple and safe.

On the basis of the technical scheme, the utility model can be further improved as follows.

Furthermore, the upper end of the first-stage fixed arm is fixedly provided with two roller carriers, two roller carriers are respectively provided with a rolling roller, and the two rollers are respectively clung to the side plates at the two ends of the second-stage telescopic arm.

The beneficial effect of adopting the further scheme is that: two gyro wheels can stretch out or the indentation is carried on spacingly to the flexible arm of second grade, can also reduce the frictional force that the flexible arm of second grade stretches out or indentation one-level fixed arm for the flexible arm of second grade stretches out or the indentation is more steady.

Further, a bolt hole is formed in the upper end portion of the second-stage telescopic arm, a lock pin assembly is arranged at the bolt hole, and the lock pin assembly can be inserted into the bolt hole and fixes the second-stage telescopic arm and the third-stage telescopic arm.

The beneficial effect of adopting the further scheme is that: the second-stage telescopic arm and the third-stage telescopic arm are fixed through the lock pin assembly, the third-stage telescopic arm is convenient to stretch, the structure is stable, and the service life is long.

Further, an oil inlet of the oil cylinder is fixedly connected with a safety valve, and the oil inlet of the oil cylinder is connected with an oil inlet pipe through the safety valve; and an oil return port of the oil cylinder is connected with an oil return pipe.

The beneficial effect of adopting the further scheme is that: the safety valve can protect the oil cylinder, and the service life is prolonged.

Further, the hoisting frame is fixedly connected with the upper end part of the three-stage telescopic arm through a pin assembly; and a square pin is arranged on the hoisting frame.

The beneficial effect of adopting the further scheme is that: the square pin is convenient for hoisting the article on the hoisting frame, and the hoisting is more convenient.

Drawings

FIG. 1 is a front view of a hydraulic telescoping boom of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a bottom view of a hydraulic telescoping boom of the present invention;

fig. 4 is a schematic diagram of the two-stage telescopic boom and the three-stage telescopic boom of the hydraulic telescopic boom of the present invention extending out.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a connecting frame, 2, a first-stage fixed arm, 3, a second-stage telescopic arm, 4, a third-stage telescopic arm, 5, an oil cylinder, 6, a hoisting frame, 7, a roller frame, 8, a roller, 9, a lock pin assembly, 10, a safety valve, 11, an oil inlet pipe, 12, an oil return pipe, 13, a pin assembly, 14 and a square pin.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, a hydraulic telescopic boom comprises a connecting frame 1, a first-stage fixed arm 2, a second-stage telescopic arm 3 and a third-stage telescopic arm 4, wherein one end of the first-stage fixed arm 2 is fixedly connected with the connecting frame 1, and the other end is obliquely and upwardly arranged; one end of the secondary telescopic arm 3 is arranged in the inner cavity of the primary fixed arm 2, and the other end extends out of the primary fixed arm 2; one end part of the three-stage telescopic arm 4 is arranged in the inner cavity of the two-stage telescopic arm 3, and the other end part of the three-stage telescopic arm extends out of the two-stage telescopic arm 3;

an oil cylinder 5 is arranged on the primary fixed arm 2, the lower end part of the oil cylinder 5 is hinged with the lower end part of the primary fixed arm 2, and the upper end part of the oil cylinder 5 is rotatably connected with the upper end part of the primary fixed arm 2; the telescopic end of the oil cylinder 5 is hinged with the upper end part of the secondary telescopic arm 3;

and a hoisting frame 6 is fixedly arranged at the upper end part of the three-stage telescopic arm 4.

In the above embodiment, the upper end of the primary fixing arm 2 is fixedly provided with two roller frames 7, each of the two roller frames 7 is provided with a roller 8 capable of rolling, and the two rollers 8 are respectively attached to the side plates at the two ends of the secondary telescopic arm 3.

In the above embodiment, the upper end of the second-stage telescopic arm 3 is provided with a pin hole, the pin hole is provided with a lock pin assembly 9, and the lock pin assembly 9 can be inserted into the pin hole and fix the second-stage telescopic arm 3 and the third-stage telescopic arm 4.

In the above embodiment, the oil inlet of the oil cylinder 5 is fixedly connected with the safety valve 10, and the oil inlet of the oil cylinder 5 is connected with the oil inlet pipe 11 through the safety valve 10; and an oil return port of the oil cylinder 5 is connected with an oil return pipe 12.

In the above embodiment, the lifting frame 6 is fixedly connected with the upper end of the third-stage telescopic arm 4 through the pin assembly 13; the hoisting frame 6 is provided with a square pin 14.

In the embodiment, the connecting frame 1 is fixed on a tractor, and the oil inlet pipe 11 and the oil return pipe 12 are connected with a hydraulic system; when articles need to be hoisted, the third-stage telescopic arm 4 is manually pulled out of the second-stage telescopic arm 3, and after the third-stage telescopic arm 4 extends in place, the lock pin assembly 9 is inserted into the lock pin hole to fix the second-stage telescopic arm 3 and the third-stage telescopic arm 4; the article to be hoisted is connected with a hoisting frame 6, an oil cylinder 5 is controlled by a hydraulic system, and when the telescopic end of the oil cylinder 5 extends out, a secondary telescopic arm 3 is driven to extend out from a primary fixed arm 2; the second-stage telescopic arm 3 drives the third-stage telescopic arm 4 to extend, so that the article is hoisted; and starting the tractor, driving the hydraulic telescopic boom to hoist the articles to a set position by the tractor, and completing the hoisting of the articles.

The hydraulic telescopic boom of the embodiment has simple and reliable structure and long service life, is suitable for various tractor types and is widely applied; is economical and practical; the hydraulic power output is more stable and reliable, the hydraulic power is manually matched for use, the finished product is reduced, the manpower and material resources are saved, and the working efficiency is improved; the installation is convenient and fast, and the operation is simple and safe.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a hydraulic telescopic boom which characterized in that: the telescopic device comprises a connecting frame (1), a primary fixed arm (2), a secondary telescopic arm (3) and a tertiary telescopic arm (4), wherein one end of the primary fixed arm (2) is fixedly connected with the connecting frame (1), and the other end of the primary fixed arm is obliquely and upwards arranged; one end of the secondary telescopic arm (3) is arranged in the inner cavity of the primary fixed arm (2), and the other end extends out of the primary fixed arm (2); one end part of the three-stage telescopic arm (4) is arranged in the inner cavity of the two-stage telescopic arm (3), and the other end part of the three-stage telescopic arm extends out of the two-stage telescopic arm (3);

an oil cylinder (5) is arranged on the primary fixed arm (2), the lower end of the oil cylinder (5) is hinged with the lower end of the primary fixed arm (2), the upper end of the oil cylinder (5) is rotatably connected with the upper end of the primary fixed arm (2), and the telescopic end of the oil cylinder (5) is hinged with the upper end of the secondary telescopic arm (3);

and a hoisting frame (6) is fixedly arranged at the upper end part of the three-stage telescopic arm (4).

2. The hydraulic telescopic boom of claim 1, characterized in that: the upper end of the first-level fixed arm (2) is fixedly provided with two roller carriers (7), two rolling rollers (8) are arranged on the roller carriers (7), and the two rollers (8) are respectively attached to two end side plates of the second-level telescopic arm (3).

3. The hydraulic telescopic boom of claim 1, characterized in that: the upper end part of the second-stage telescopic arm (3) is provided with a bolt hole, a lock pin component (9) is arranged at the bolt hole, and the lock pin component (9) can be inserted into the bolt hole and fixes the second-stage telescopic arm (3) and the third-stage telescopic arm (4).

4. The hydraulic telescopic boom of claim 1, characterized in that: an oil inlet of the oil cylinder (5) is fixedly connected with a safety valve (10), and the oil inlet of the oil cylinder (5) is connected with an oil inlet pipe (11) through the safety valve (10); and an oil return port of the oil cylinder (5) is connected with an oil return pipe (12).

5. The hydraulic telescopic boom of claim 1, characterized in that: the lifting frame (6) is fixedly connected with the upper end part of the three-stage telescopic arm (4) through a pin assembly (13); and a square pin (14) is arranged on the hoisting frame (6).