CN215558647U - Novel hydraulic support advancing jack - Google Patents

Abstract

The utility model discloses a novel hydraulic support pushing jack, which comprises a cylinder body, wherein a piston rod is sleeved in the cylinder body in a penetrating manner, a piston is arranged at one end of the bottom of the piston rod in the cylinder body, a guide ring is embedded on the outer circumferential wall of the piston, the guide ring is tightly attached to the smooth inner wall of the cylinder body, a guide sleeve is sleeved at the other end of the piston rod, and the guide sleeve is clamped on the inner wall of the upper end of the cylinder body; the piston rod is sleeved with a distance sleeve on the rod wall between the piston and the guide sleeve in a penetrating manner, and the distance sleeve can slide on the piston rod. The utility model reduces the processing cost, adopts the jack with the stroke of 900mm, is additionally provided with the distance sleeve, and increases the stroke adaptive range of the jack, thereby increasing the adaptability of the jack and reducing the production cost of enterprises.

Description

Novel hydraulic support advancing jack

Technical Field

The utility model belongs to the technical field of hydraulic equipment, relates to an improvement of a hydraulic cylinder, and particularly relates to a novel hydraulic support pushing jack.

Background

In the process of mining under a mine, a hydraulic support is connected to a roadway in a jacking mode, a jack is indispensable equipment on the hydraulic support, in the normal use process, the stroke of the jack is basically 700mm, 800mm and 900mm, the 700mm stroke and the 900mm stroke are more, the old structure pushing jack only has one stroke, the use is single, and the adaptability is not strong.

Disclosure of Invention

In view of this, the present invention provides a new hydraulic support pushing jack.

In order to achieve the purpose, the technical scheme is as follows:

a novel hydraulic support pushing jack comprises a cylinder body, wherein a piston rod is sleeved in the cylinder body in a penetrating manner, a piston is installed at one end of the bottom of the piston rod in the cylinder body, a guide ring is embedded on the outer circumferential wall of the piston and closely attached to the smooth inner wall of the cylinder body, a guide sleeve is sleeved at the other end of the piston rod, and the guide sleeve is clamped on the inner wall of the upper end of the cylinder body;

the piston rod is sleeved with a distance sleeve on the rod wall between the piston and the guide sleeve in a penetrating manner, and the distance sleeve can slide on the piston rod.

As a further improvement of the utility model, a lace-shaped sealing ring is tightly sleeved between the inner wall of the piston and the piston rod.

As a further improvement of the utility model, one end of the outer side of the guide sleeve is connected with a baffle sleeve arranged at the opening end of the cylinder body in a propping manner, and meanwhile, a dustproof ring is embedded in the baffle sleeve and is in close contact with the piston rod.

As a further improvement of the utility model, the distance between the piston and the guide sleeve is 900mm, and the length of the distance sleeve is 200 mm;

in addition, a polyformaldehyde inner guide ring is embedded in the inner wall of the distance sleeve, and the inner guide ring is in close contact with the piston rod.

The utility model has the beneficial effects that: the utility model reduces the processing cost, adopts the jack with the stroke of 900mm, is additionally provided with the distance sleeve, and increases the stroke adaptive range of the jack, thereby increasing the adaptability of the jack and reducing the production cost of enterprises.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the structure of the present invention.

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 embodiments with reference to the attached drawings.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Please refer to fig. 1:

a novel hydraulic support pushing jack comprises a cylinder body 1, wherein a piston rod 2 is sleeved in the cylinder body 1 in a penetrating manner, a piston 3 is installed at one end of the bottom in the cylinder body 1 of the piston rod 2, a guide ring 4 is embedded on the outer circumferential wall of the piston 3, the guide ring 4 is tightly attached to the smooth inner wall of the cylinder body 1, a guide sleeve 5 is sleeved at the other end of the piston rod 2, and the guide sleeve 5 is clamped on the inner wall of the upper end of the cylinder body 1;

the piston rod 2 is sleeved with a distance sleeve 6 on the rod wall between the piston 3 and the guide sleeve 5, and the distance sleeve 6 can slide on the piston rod 2.

A lace-shaped sealing ring 7 is tightly sleeved between the inner wall of the piston 3 and the piston rod 2 in a penetrating manner, a blocking sleeve 8 installed at the opening end of the cylinder body 1 is connected to one end of the outer side of the guide sleeve 5 in a propping manner, a dustproof ring 9 is embedded on the blocking sleeve 8, and the dustproof ring 9 is tightly contacted with the piston rod 2.

The distance between the piston 3 and the guide sleeve 5 is 900mm, and the length of the distance sleeve 6 is 200 mm; in addition, a polyformaldehyde inner guide ring 10 is embedded on the inner wall of the distance sleeve 6, and the inner guide ring 10 is tightly contacted with the piston rod 2.

When the jack with the stroke of 700mm is needed, the distance sleeve 6 is assembled, and when the jack with the stroke of 900mm is needed, the distance sleeve 6 is removed, so that the adaptability of the jack is improved.

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.

Claims (4)

1. The utility model provides a novel hydraulic support passes jack, includes the cylinder body, its characterized in that: a piston rod is sleeved in the cylinder body in a penetrating manner, one end of the bottom of the piston rod in the cylinder body is provided with a piston, the outer circumferential wall of the piston is embedded with a guide ring, the guide ring is tightly attached to the smooth inner wall of the cylinder body, the other end of the piston rod is sleeved with a guide sleeve, and the guide sleeve is clamped on the inner wall of the upper end of the cylinder body;

the piston rod is sleeved with a distance sleeve on the rod wall between the piston and the guide sleeve in a penetrating manner, and the distance sleeve can slide on the piston rod.

2. The novel hydraulic support pushing jack of claim 1, wherein: and a lace-shaped sealing ring is tightly sleeved between the inner wall of the piston and the piston rod.

3. The novel hydraulic support pushing jack of claim 1, wherein: one end of the outer side of the guide sleeve is connected with a baffle sleeve installed at the opening end of the cylinder body in a propping mode, and meanwhile, a dustproof ring is embedded in the baffle sleeve and is in close contact with the piston rod.

4. The novel hydraulic support pushing jack of claim 1, wherein: the distance between the piston and the guide sleeve is 900mm, and the length of the distance sleeve is 200 mm;

in addition, a polyformaldehyde inner guide ring is embedded in the inner wall of the distance sleeve, and the inner guide ring is in close contact with the piston rod.

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