CN213478377U

CN213478377U - Hydraulic support three-stage box for self-propelled underground support

Info

Publication number: CN213478377U
Application number: CN202022450064.5U
Authority: CN
Inventors: 王正; 王金强; 贾卫峰; 易勇; 王翔
Original assignee: Guizhou Panjiang Mining Machinery Co ltd
Current assignee: Guizhou Panjiang Mining Machinery Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-06-18
Anticipated expiration: 2030-10-29

Abstract

The utility model discloses a hydraulic support three-stage box for self-propelled underground support, belonging to the technical field of coal mining support equipment; it includes a first stage box; a second stage box which can move along the axis of the first stage box is arranged in the first stage box; a third stage cartridge which is movable along the axis of the second stage cartridge is mounted in the second stage cartridge; one end part of the telescopic oil cylinder is fixed at the inner bottom side of the first-stage box, and the other end part of the telescopic oil cylinder penetrates through the top of the third-stage box; a connecting plate is arranged at the end part of one side of the telescopic oil cylinder extending out of the third-stage box; the outer side surface of the upper part of the first-stage box is provided with a first limiting clamping piece for clamping the bottom of the second-stage box; a second limiting clamping piece used for clamping the bottom of the third-stage box is arranged on the outer side surface of the upper part of the second-stage box; the utility model discloses effectively solved to the supporting equipment under the self-propelled ore deposit of current design, lacked the problem that supplementary installation landing leg cooperated the use of telescopic cylinder.

Description

Hydraulic support three-stage box for self-propelled underground support

Technical Field

The utility model relates to an equipment technical field is strutted in coal mining, concretely relates to hydraulic pressure support tertiary box for supporting under self-propelled ore deposit.

Background

Due to the national conditions and the complexity of geological conditions of coal fields, blasting excavation and fully mechanized excavating machine mining are still the most main mining modes of coal mines. The top of the blasting and excavating working face is supported by mostly single hydraulic props and hinged top beams, and individual local coal mines are also supported by metal props or wood pillars. In the tunneling process, when the distance between the fully-mechanized excavating machine and the supporting structure exceeds a certain distance, the coal cutting is stopped, then the mining area is cleaned, and the coal mining can be restarted after the top of the roadway of the goaf is supported by using a hydraulic support, a metal strut or a wood column. A large amount of time is consumed in the process, and the top of the roadway of the coal face is in an undersupply state at the moment. In places with unstable geology, the danger of collapse is likely to happen, and meanwhile, stopping is needed at intervals, so that the coal mining efficiency is greatly influenced. Based on this, the inventor designs a structure capable of self-walking in a coal mine roadway, the structure advances by four sets of supporting legs with vertically telescopic door shapes moving alternately back and forth like arthropods, the existing common supporting legs all provide acting force by oil cylinders with large hydraulic power, but as a new supporting structure, no standard auxiliary structure matched with the oil cylinders meets the requirements at present, and the purpose of the invention is to provide the structure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a hydraulic support tertiary box for supporting under self-propelled ore to solve the problem to supporting equipment under self-propelled ore to current design, lack the use that supplementary installation landing leg cooperates telescopic cylinder.

In order to solve the above problem, the utility model provides a following technical scheme:

a hydraulic support three-stage box for self-propelled underground support comprises a first-stage box; a second stage box which can move along the axis of the first stage box is arranged in the first stage box; a third stage cartridge which is movable along the axis of the second stage cartridge is mounted in the second stage cartridge; one end part of the telescopic oil cylinder is fixed at the inner bottom side of the first-stage box, and the other end part of the telescopic oil cylinder penetrates through the top of the third-stage box; a connecting plate is arranged at the end part of one side of the telescopic oil cylinder extending out of the third-stage box; the outer side surface of the upper part of the first-stage box is provided with a first limiting clamping piece for clamping the bottom of the second-stage box; and a second limiting clamping piece used for clamping the bottom of the third-stage box is arranged on the outer side surface of the upper part of the second-stage box.

Preferably, the first-stage box, the second-stage box and the third-stage box are similar rectangular box structures with sequentially reduced sizes.

Preferably, a bearing plate is arranged at the lower bottom of the first-stage box; and a reinforcing rib plate is also arranged between the bearing plate and the first-stage box.

Preferably, a main oil cylinder interaction window is arranged on the lower bottom side of the first-stage box, and the oil pipe is connected with an internal telescopic oil cylinder through the main oil cylinder interaction window; the main oil cylinder interaction window and the reinforcing rib plate are not arranged on the same side end face of the first-stage box.

Preferably, a spare oil cylinder interaction window is arranged at the top of the third-stage box.

Preferably, the first limiting clamping piece and the second limiting clamping piece are the same in structure and are of round-head pin structures, and the first limiting clamping piece and the second limiting clamping piece are respectively inserted into the top shell of the first-stage box and the top shell of the second-stage box.

Furthermore, the first-stage box and the second-stage box are respectively provided with a first limit clamping piece and a second limit clamping piece, and the periphery sides of the positions of the first limit clamping piece and the second limit clamping piece are also provided with a protective ring plate.

Preferably, the telescopic oil cylinder is an oil cylinder with the specification of LZ-140/80X 1600-1235.

The utility model discloses beneficial effect:

the utility model discloses a tertiary hydraulic stretching supporting mechanism, its box body that utilizes three suit in proper order is as the level box to set up flexible hydro-cylinder in the box body of innermost, drive the activity of box body through the flexible of hydro-cylinder, thereby realize the maintenance to whole box body bearing structure, simultaneously first, second grade box, second, set up spacing fastener respectively between the third grade box in order to form spacingly to the box body, effectively and guaranteed the holistic structural stability of device safely.

Drawings

Fig. 1 is a schematic structural view of the present invention in an embodiment;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

description of reference numerals: 1. the device comprises a first-stage box, a 1A main oil cylinder interaction window, a 2, second-stage box, a 3, third-stage box, a 3A standby oil cylinder interaction window, a 4, telescopic oil cylinders, a 5, a first limiting clamping piece, a 6, second limiting clamping piece, a 7, a bearing plate, a 8, a reinforcing rib plate, a 9, a protective ring plate, a 10 and a connecting plate.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments:

example (b):

referring to fig. 1, the embodiment provides a hydraulic support three-stage box for self-propelled underground support, which comprises a first-stage box 1; a second stage cassette 2 which is movable along the axis of the first stage cassette 1 is installed in the first stage cassette 1; a third stage cassette 3 mounted in the second stage cassette 2 to be movable along the axis of the second stage cassette 2; one end part of the telescopic oil cylinder 4 is fixed at the inner bottom side of the first-stage box 1, and the other end part of the telescopic oil cylinder passes through the top of the third-stage box 3; a connecting plate 10 is arranged at the end part of the telescopic oil cylinder 4 extending out of one side of the third-stage box 3; the outer side surface of the upper part of the first-stage box 1 is provided with a first limiting clamping piece 5 for clamping the bottom of the second-stage box 2; and a second limiting clamping piece 6 for clamping the bottom of the third-stage box 2 is arranged on the outer side surface of the upper part of the second-stage box 2.

The first-stage box 1, the second-stage box 2 and the third-stage box 3 are similar rectangular box body structures with sizes reduced in sequence. Wherein, the external diameter of the first-stage box 1 is 280mm, the second-stage box 2 is 250mm, and the third-stage box 3 is 200 mm.

A bearing plate 7 is arranged at the lower bottom of the first-stage box 1; a reinforcing rib plate 8 is further provided between the pressure bearing plate 7 and the first stage case 1. The pressure bearing plate 7 in the embodiment is of a flat plate structure, and the arrangement of the pressure bearing plate 7 and the reinforcing rib plate 8 is favorable for improving the supporting reliability of the supporting legs in a mine roadway.

A main oil cylinder interaction window 1A is arranged on the lower bottom side of the first-stage box 1, and an oil pipe is connected with an internal telescopic oil cylinder 4 through the main oil cylinder interaction window 1A; the master cylinder interaction window 1A and the reinforcing rib plate 8 are not arranged on the same side end face of the first-stage box 1. And a spare oil cylinder interaction window 3A is arranged at the top of the third-stage box 3. The main oil cylinder interaction window 1A and the spare oil cylinder interaction window 3A can be mutually backed up, and can be used by replacing connection under the condition of need, and the main oil cylinder interaction window 1A and the reinforcement rib plate 8 are prevented from being arranged on the same end surface so as to prevent the generation of interference between a line and the reinforcement rib plate 8

The first limiting clamping piece 5 and the second limiting clamping piece 6 are the same in structure and are of round-head pin structures, and the first limiting clamping piece and the second limiting clamping piece are respectively inserted into the shells at the tops of the first-stage box 1 and the second-stage box 2.

The first-stage box 1 and the second-stage box 2 are respectively provided with a first limiting clamping piece 5 and a second limiting clamping piece 6, and the periphery sides of the positions are also provided with a protective ring plate 9. The thickness of the guard ring plate 9 is the same as the height of the first limit clamping piece 5 and the second limit clamping piece 6 exposed on the first-stage box 1 and the second-stage box 2.

The telescopic cylinder 4 is a cylinder with the specification of LZ-140/80X 1600-1235.

Claims

1. The utility model provides a tertiary box of hydraulic support for self-propelled mine is strutted, its characterized in that: comprises a first stage box (1); a second stage box (2) which can move along the axis of the first stage box (1) is arranged in the first stage box (1); a third stage box (3) which can move along the axis of the second stage box (2) is arranged in the second stage box (2); one end part of the telescopic oil cylinder (4) is fixed on the inner bottom side of the first-stage box (1), and the other end part of the telescopic oil cylinder passes through the top of the third-stage box (3); a connecting plate (10) is arranged at the end part of the telescopic oil cylinder (4) extending out of one side of the third-stage box (3); a first limiting clamping piece (5) for clamping the bottom of the second-stage box (2) is arranged on the outer side surface of the upper part of the first-stage box (1); a second limiting clamping piece (6) used for clamping the bottom of the third-stage box (3) is arranged on the outer side surface of the upper part of the second-stage box (2).

2. The hydraulically supported tertiary box for self-propelled undermine support of claim 1, wherein: the first-stage box (1), the second-stage box (2) and the third-stage box (3) are similar rectangular box body structures with sizes reduced in sequence.

3. The hydraulically supported tertiary box for self-propelled undermine support of claim 1, wherein: a bearing plate (7) is arranged at the lower bottom of the first-stage box (1); and a reinforcing rib plate (8) is also arranged between the pressure bearing plate (7) and the first-stage box (1).

4. The hydraulically supported tertiary box for self-propelled undermine support of claim 1, wherein: a main oil cylinder interaction window (1A) is arranged on the lower bottom side of the first-stage box (1), and an oil pipe is connected with an internal telescopic oil cylinder (4) through the main oil cylinder interaction window (1A); the master cylinder interaction window (1A) and the reinforcing rib plate (8) are not arranged on the same side end face of the first-stage box (1).

5. The hydraulically supported tertiary box for self-propelled undermine support of claim 1, wherein: a spare oil cylinder interaction window (3A) is arranged at the top of the third-stage box (3).

6. The hydraulically supported tertiary box for self-propelled undermine support of claim 1, wherein: the first limiting clamping piece (5) and the second limiting clamping piece (6) are the same in structure and are of round-head pin structures, and the first limiting clamping piece and the second limiting clamping piece are respectively inserted into the shells at the tops of the first-level box (1) and the second-level box (2).

7. The hydraulically supported tertiary box for self-propelled undersea support of claim 1 or 6, characterized in that: the first-stage box (1) and the second-stage box (2) are respectively provided with a first limiting clamping piece (5) and a second limiting clamping piece (6), and the periphery sides of the positions are also provided with a protective ring plate (9).

8. The hydraulically supported tertiary box for self-propelled undermine support of claim 1, wherein: the telescopic oil cylinder (4) adopts an oil cylinder with the specification of LZ-140/80X 1600-1235.