CN219119276U

CN219119276U - Underground coal mine supporting device

Info

Publication number: CN219119276U
Application number: CN202320365049.1U
Authority: CN
Inventors: 衡多; 赵小林; 李文锋; 李战胜
Original assignee: Yungaishan Coal Mine No1 Of Henan Yongjin Energy Co ltd
Current assignee: Yungaishan Coal Mine No1 Of Henan Yongjin Energy Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-06-02
Anticipated expiration: 2033-03-02

Abstract

The utility model discloses an underground coal mine supporting device, which belongs to the field of hydraulic supporting frames and comprises arc supporting beams, wherein lower supporting seats are arranged at the bottoms of two upper supporting seats, a first pulling beam and a second pulling beam are fixedly welded on adjacent sides of the two upper supporting seats respectively, a first cross beam and a second cross beam are fixedly welded on adjacent sides of the two lower supporting seats respectively, hydraulic cylinders are fixedly arranged at the tops of the two lower supporting seats, the arc supporting beams are divided into a plurality of arc supporting blocks and arc mounting blocks, and the arc supporting blocks are mutually connected end to form an arc structure which is suitable for the top of a mine channel, so that the support is convenient to carry out on the top of the mine channel, the transportation is convenient, and each arc supporting block can be assembled and disassembled into a corresponding cushion block I or a cushion block II, so that the radian or span of the arc structure formed by the surrounding is changed, and the applicability is improved.

Description

Underground coal mine supporting device

Technical Field

The utility model relates to the field of hydraulic support frames, in particular to a coal mine underground support device.

Background

Coal mines are areas where mankind is mining coal resources in coal-rich mining areas, and are generally classified into underground coal mines and open pit coal mines, and when a coal seam is far from the ground surface, coal is generally selected to be mined into underground mining tunnels, which is the underground coal mine.

After the mine is opened, the mine is required to be supported, and the tops of the mine are arc-shaped structures, so that arc-shaped supporting beams which are adaptive to the arc-shaped structures of the tops of the mine are required to be utilized, the arc-shaped supporting beams at the tops of the existing supporting devices are generally in an integrally welded structural form, the degree of integration is high, disassembly, transportation and transportation are not convenient when the arc-shaped span is large, and the arc-shaped supporting beams matched with the mine are required to be customized for the mine with different radians at the tops, so that the applicability is low, and the underground supporting device for the mine is provided for solving the problems.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems existing in the prior art, the utility model aims to provide a coal mine underground supporting device, which is characterized in that an arc supporting beam is divided into a plurality of arc supporting blocks and arc installation blocks, the arc supporting blocks and the arc installation blocks are rotationally connected through pin shafts and can be mutually connected end to form an arc structure which is suitable for the top of a mine channel, so that the supporting on the top of the mine channel is facilitated, and the arc supporting blocks and the arc installation blocks are conveniently disassembled into a single body for transportation or are pulled into a strip for transportation in an end to end mode during transportation, so that the convenience of transferring the arc supporting beam is improved; and each arc supporting block is dismantled and assembled corresponding cushion one or two for the length or the radian of each arc supporting block change, and then the radian size or the span size of the arc structure who encloses conveniently is applicable to the top and is the ore deposit of different radians and support, improves the suitability.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The underground coal mine supporting device comprises an arc-shaped supporting beam, wherein two ends of the bottom of the arc-shaped supporting beam are fixedly provided with upper supporting seats through screws, the bottoms of the two upper supporting seats are provided with lower supporting seats, a first pulling beam and a second pulling beam are fixedly welded on adjacent sides of the two upper supporting seats respectively, a first cross beam and a second cross beam are fixedly welded on adjacent sides of the two lower supporting seats respectively, hydraulic cylinders are fixedly installed at the tops of the two lower supporting seats, and output rods at the tops of the hydraulic cylinders are fixedly installed at the bottoms of the corresponding upper supporting seats;

the arc-shaped supporting beams comprise a plurality of arc-shaped supporting blocks which are connected with each other in a rotating way, wherein the bottoms of the two arc-shaped supporting blocks are connected with arc-shaped mounting blocks in a rotating way, and the bottoms of the arc-shaped mounting blocks are fixedly mounted on the tops of the corresponding upper supporting seats through screws;

the arc-shaped supporting blocks are identical in structure, and each arc-shaped supporting block comprises a body, a first cushion block and a second cushion block.

Furthermore, the four corners of the bottom of the lower supporting seat are fixedly connected with limit posts, the four corners of the bottom of the upper supporting seat are provided with through holes, the inside of each through hole is fixedly provided with a shaft sleeve, and the top of each limit post is in sliding connection with the corresponding inside of each shaft sleeve.

Furthermore, the second beam and one end of the second beam are respectively connected with the first beam in a sliding manner, the connection part of the second beam and the first beam is fixedly installed through a screw, and the connection part of the second beam and the first beam is fixedly installed through a screw.

Further, threaded holes are formed in the body, the first cushion block and the second cushion block, the body is fixedly installed with the first cushion block through an inner hexagon screw, and the first cushion block is fixedly installed with the second cushion block through an inner hexagon screw.

Furthermore, a group of lugs are fixedly welded on one side of the body, pin holes I are formed in the lugs, pin holes II are formed in the cushion block I and the cushion block II, and the cushion block I and the cushion block II are correspondingly connected with the pin holes II through pin shafts in a rotating mode.

Furthermore, a third pin hole is formed in each of the two arc-shaped mounting blocks, and the third pin hole is in rotary connection with the corresponding first pin hole through a pin shaft.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, the arc-shaped supporting beam is divided into the form of the arc-shaped supporting blocks and the arc-shaped mounting blocks, the arc-shaped supporting blocks and the arc-shaped mounting blocks are connected in a rotating mode through the pin shafts, the arc-shaped supporting blocks and the arc-shaped mounting blocks are connected end to end, an arc-shaped structure which is suitable for the top of a mine channel can be formed by encircling the arc-shaped supporting blocks, the arc-shaped supporting beam is convenient to support at the top of the mine channel, and the arc-shaped supporting blocks and the arc-shaped mounting blocks are convenient to disassemble into monomers to transport or are pulled end to transport to form a strip to improve the convenience of transferring the arc-shaped supporting beam;

(2) According to the scheme, each arc-shaped supporting block is detachable and corresponding first cushion block or second cushion block, so that the length or radian of each arc-shaped supporting block is changed, and the radian or span of an enclosed arc-shaped structure is large, so that the arc-shaped supporting block is convenient to be applied to support the mine channels with different radians at the tops, and the applicability is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a spacing post mounting structure of the present utility model;

FIG. 3 is a schematic view of a split structure of two adjacent arc-shaped supporting blocks according to the present utility model;

fig. 4 is a schematic diagram of an arc-shaped supporting block splitting structure according to the present utility model.

The reference numerals in the figures illustrate:

1. an arc-shaped supporting beam; 2. an upper support base; 201. a shaft sleeve; 3. a lower support base; 4. pulling a first beam; 5. a second beam pulling step; 6. a first beam; 7. a second cross beam; 8. a hydraulic cylinder; 9. an arc-shaped supporting block; 901. a body; 9011. ear pieces; 9012. pin holes I; 902. a first cushion block; 9021. a pin hole II; 903. a second cushion block; 10. an arc-shaped mounting block; 11. a limit column; 12. and a pin shaft.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Example 1:

referring to fig. 1-4, an underground coal mine supporting device comprises an arc supporting beam 1, wherein two ends of the bottom of the arc supporting beam 1 are fixedly provided with an upper supporting seat 2 through screws, the bottoms of the two upper supporting seats 2 are respectively provided with a lower supporting seat 3, one adjacent side of each of the two upper supporting seats 2 is fixedly welded with a first pull beam 4 and a second pull beam 5, one adjacent side of each of the two lower supporting seats 3 is fixedly welded with a first cross beam 6 and a second cross beam 7, the tops of the two lower supporting seats 3 are fixedly provided with a hydraulic cylinder 8, an output rod at the top of the hydraulic cylinder 8 is fixedly arranged at the bottom of the corresponding upper supporting seat 2, the arc supporting beam 1 comprises a plurality of arc supporting blocks 9 which are connected with each other in a rotating manner, the bottoms of the two arc supporting blocks 9 are fixedly connected with arc supporting blocks 10, the bottoms of the arc supporting blocks 10 are fixedly arranged at the tops of the corresponding upper supporting seats 2 through screws, the structures of the arc supporting blocks 9 are identical, and each arc supporting block 9 comprises a body 901, a first block 902 and a second block 903.

When the support is used, the body 901, the first cushion block 902 and the second cushion block 903 are firstly installed to form the arc support blocks 9, then the arc support blocks 9 and the arc installation blocks 10 are connected through the pin shafts 12 to form the arc support beam 1 which is adaptive to the arc structure at the top of the mine channel, the arc support beam 1 is installed at the tops of the two upper support seats 2, at the moment, the two hydraulic cylinders 8 are started, the two upper support seats 2 and the arc support beam 1 are pushed to move towards the top of the mine channel, and the effect of supporting the top of the mine channel is achieved.

Example 2:

in view of the above embodiment 1, referring to fig. 2, four corners of the bottom of the lower support seat 3 are fixedly connected with the limiting posts 11, four corners of the bottom of the upper support seat 2 are provided with through holes, the shaft sleeves 201 are fixedly installed in the through holes, and the tops of the limiting posts 11 are slidably connected with the corresponding shaft sleeves 201.

The upper supporting seat 2 and the lower supporting seat 3 can be assisted to be installed through the limiting columns 11, so that the upper supporting seat 2 moves in a reciprocating manner in a directional manner at the top of the lower supporting seat 3, and the stability of the hydraulic cylinder 8 when pushing the upper supporting seat 2 to move is improved.

Example 3:

in view of the

above embodiments

1 and 2, referring to fig. 1, one ends of the second beam 5 and the second beam 7 are slidably connected to the first beam 4 and the first beam 6, respectively, and the connection between the second beam 5 and the first beam 4 is fixedly mounted by a screw, and the connection between the second beam 7 and the first beam 6 is fixedly mounted by a screw.

Through the first pull beam 4, the second pull beam 5, the first cross beam 6 and the second cross beam 7, the two upper support seats 2 and the lower support seat 3 can be respectively pulled, and the stability of the structure is improved.

Example 4:

in view of the above embodiment 1, embodiment 2 and embodiment 3, referring to fig. 3 and 4, threaded holes are formed in the body 901, the first cushion block 902 and the second cushion block 903, the body 901 and the first cushion block 902 are fixedly mounted by socket head cap screws, the first cushion block 902 and the second cushion block 903 are fixedly mounted by socket head cap screws, a group of lugs 9011 are fixedly welded on one side of the body 901, a first pin hole 9012 is formed in the lugs 9011, a second pin hole 9021 is formed in the first cushion block 902 and the second cushion block 903, the first pin hole 9012 and the second pin hole 9021 are correspondingly connected in a rotating manner through a pin shaft 12, a third pin hole is formed in the two arc-shaped mounting blocks 10, and the third pin hole is correspondingly connected in a rotating manner through the pin shaft 12 in the two first pin holes 9012.

The arc-shaped supporting beams are connected through the pin shafts 12 between the arc-shaped supporting blocks 9 and the arc-shaped mounting blocks 10, arc-shaped structures which are adaptive to the tops of the mine channels can be formed by the arc-shaped supporting blocks 9 and the arc-shaped mounting blocks 10 in an end-to-end connection mode, installation is convenient, transportation is convenient to carry out, the first cushion block 902 and the second cushion block 903 are installed inside the arc-shaped supporting blocks 9, the first cushion block 902 and the second cushion block 903 are conveniently increased and decreased in real time according to the arc-shaped sizes and the spans of the tops of the mine channels on site, and the formed arc-shaped supporting beams 1 are enabled to have different radian sizes or spans and are convenient to install.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. The utility model provides a colliery strutting arrangement in pit, includes arc supporting beam (1), its characterized in that: the two ends of the bottom of the arc-shaped supporting beam (1) are fixedly provided with upper supporting seats (2) through screws, the bottoms of the two upper supporting seats (2) are provided with lower supporting seats (3), one side of each of the two upper supporting seats (2) adjacent to each other is fixedly welded with a first pull beam (4) and a second pull beam (5), one side of each of the two lower supporting seats (3) adjacent to each other is fixedly welded with a first cross beam (6) and a second cross beam (7), the tops of the two lower supporting seats (3) are fixedly provided with hydraulic cylinders (8), and output rods at the tops of the hydraulic cylinders (8) are fixedly arranged at the bottoms of the corresponding upper supporting seats (2);

the arc-shaped supporting beams (1) comprise a plurality of arc-shaped supporting blocks (9) which are connected with each other in a rotating way, wherein the bottoms of the two arc-shaped supporting blocks (9) are connected with arc-shaped mounting blocks (10) in a rotating way, and the bottoms of the arc-shaped mounting blocks (10) are fixedly mounted on the tops of the corresponding upper supporting seats (2) through screws;

the arc-shaped supporting blocks (9) are identical in structure, and the arc-shaped supporting blocks (9) comprise a body (901), a first cushion block (902) and a second cushion block (903).

2. A coal mine downhole supporting device according to claim 1, wherein: the four corners of the bottom of the lower supporting seat (3) are fixedly connected with limiting columns (11), through holes are formed in the four corners of the bottom of the upper supporting seat (2), shaft sleeves (201) are fixedly installed in the through holes, and the tops of the limiting columns (11) are in sliding connection with the corresponding shaft sleeves (201).

3. A coal mine downhole supporting device according to claim 1, wherein: one end of the second pulling beam (5) and one end of the second cross beam (7) are respectively connected with the first pulling beam (4) and the first cross beam (6) in a sliding way, and the joint of the second pull beam (5) and the first pull beam (4) is fixedly installed through a screw, and the joint of the second cross beam (7) and the first cross beam (6) is fixedly installed through a screw.

4. A coal mine downhole supporting device according to claim 1, wherein: screw holes are formed in the body (901), the first cushion block (902) and the second cushion block (903), the body (901) and the first cushion block (902) are fixedly mounted through socket head cap screws, and the first cushion block (902) and the second cushion block (903) are fixedly mounted through socket head cap screws.

5. A coal mine downhole supporting device according to claim 1, wherein: a group of lugs (9011) are fixedly welded on one side of the body (901), a first pin hole (9012) is formed in the lugs (9011), a second pin hole (9021) is formed in the cushion block I (902) and the cushion block II (903), and the corresponding first pin hole (9012) and the second pin hole (9021) are connected through a pin shaft (12) in a rotating mode.

6. A coal mine downhole supporting device as claimed in claim 5, wherein: and the two arc-shaped mounting blocks (10) are internally provided with a third pin hole, and the third pin hole is rotationally connected with the corresponding two first pin holes (9012) through pin shafts (12).