CN214577124U - Protection device for coal mining and tunneling - Google Patents

Abstract

The utility model discloses a protective device for coal mining and tunneling, relating to the technical field of coal mines; the coal mine branch plate lifting device comprises a base, wherein a lifting device is arranged at one end of the base, the coal mine branch plate lifting device is in transmission connection with a branch plate, a buffer device is arranged between the branch plate and a coal mine, the lifting device comprises a guide pillar, a guide sleeve, a latch and a gear, one end of the base is provided with the guide pillar which is fixedly connected, a plurality of clamping blocks which are fixedly connected are arranged on the surface of the guide pillar, the clamping blocks are arranged in a second sliding groove in the guide sleeve in a sliding mode, a plurality of latch teeth which are fixedly connected are arranged on the surface of one side of the guide sleeve, the latch teeth are meshed with the gear, and the guide sleeves are connected through a cross beam.

Description

Protection device for coal mining and tunneling

Technical Field

The utility model relates to a colliery technical field specifically is a protector is used in coal mining tunnelling.

Background

Coal mines are generally divided into underground coal mines and open pit coal mines, and when a coal seam is far from the ground surface, coal mining into an underground excavation roadway is generally selected, and the underground coal mines are the underground coal mines, and when the coal seam is very close to the ground surface, the surface soil layer is generally selected to be directly peeled off for excavation

Coal, which is an open pit coal mine, is often subjected to protective devices during the excavation of the coal mine.

In the colliery of difference, the high difference on ground can lead to the unable stable installation of protector, when supporting the protection to the top in colliery, and single support is difficult to disperse the atress, and is great to protector's damage, when the top in colliery drops debris, does not have buffer, so can destroy stronger to protector.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coal mining is protector for tunnelling to solve the problem that proposes among the above-mentioned background art.

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

a protection device for coal mining and tunneling comprises a base, wherein a lifting device is arranged at one end of the base;

the coal mine branch plate is connected with the coal mine branch device in a transmission way, and a buffer device is arranged between the coal mine branch plate and the coal mine;

the lifting device comprises a guide pillar, a guide sleeve, a clamping tooth and a gear;

one end of the base is provided with a fixedly connected guide pillar, the surface of the guide pillar is provided with a plurality of fixedly connected clamping blocks, the clamping blocks are arranged in a second sliding groove in the guide sleeve in a sliding mode, the surface of one side of the guide sleeve is provided with a plurality of fixedly connected clamping teeth, the clamping teeth are meshed with the gear, and the guide sleeve is connected through a cross beam.

As a further aspect of the present invention: a first sliding groove is formed in the inner side of the guide sleeve, two sides of the cross beam are arranged in the first sliding groove in a sliding mode, a cavity is formed in the cross beam, and a fixing device is arranged in the cavity;

the fixing device comprises a bidirectional screw rod, a threaded sleeve and a clamping plate;

the inner wall of cavity is equipped with the two-way lead screw of rotation connection, be equipped with threaded connection's thread bush on the two-way lead screw, the one end and the grip block fixed connection of thread bush, the inside of grip block is equipped with fixed rubber pad, the inside centre gripping of grip block has the support column.

As a further aspect of the present invention: the one end of support column and the fixed surface of crossbeam are connected, the one end that the crossbeam was kept away from to the support column is connected with the middle surface position fixed connection of guard plate, the both sides of support column are through the inner wall fixed support of branch extension board and guard plate.

As a further aspect of the present invention: be equipped with buffer between guard plate and the colliery, buffer includes roof, connecting rod, fixed block and slide bar, the surface of guard plate is equipped with the fixed block of a plurality of bisymmetries, be equipped with fixed connection's slide bar between the fixed block, the symmetry is equipped with sliding connection's slider on the slide bar, be equipped with fixed connection's spring between the slider, be equipped with fixed connection's roof on the inner wall in colliery, the symmetry articulates on the roof has the connecting rod, the end and the slider of connecting rod rotate to be connected.

As a further aspect of the present invention: the surface of the base is fixedly connected with the ground through an expansion screw, a supporting plate is arranged at one end of the base, a fixed driving piece is arranged on one side of the supporting plate, and an output shaft of the driving piece is in transmission connection with a gear.

Compared with the prior art, the beneficial effects of the utility model are that: the buffering mechanism is added, so that the damage to the protection device caused by the falling sundries at the top of the coal mine can be effectively prevented, the size of collision sound is reduced, the lifting mechanism is added, and the protection device can be changed according to different terrains, so that the protection device is more stable.

Drawings

Fig. 1 is a schematic structural view of a shield device for coal mining and tunneling.

Fig. 2 is a side view of a gear in the shield device for coal mining excavation.

Fig. 3 is an enlarged view of a portion a of the shield device for coal mining and tunneling.

Fig. 4 is a schematic structural view of a holding plate in the shield device for coal mining excavation.

Fig. 5 is a schematic structural diagram of a guide pillar and a guide sleeve in the shield device for coal mining and tunneling.

In the figure: 1-base, 2-expansion screw, 3-guide column, 4-guide sleeve, 5-latch, 6-gear, 7-first chute, 8-beam, 9-cavity, 10-bidirectional screw rod, 11-thread sleeve, 12-clamping plate, 13-rubber pad, 14-second chute, 15-clamping block, 16-supporting column, 17-branch supporting plate, 18-protection plate, 19-driving piece, 20-coal mine, 21-top plate, 22-connecting rod, 23-fixing block, 24-sliding rod, 25-sliding block and 26-spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 and 3, in embodiment 1 of the present invention, a coal mining and tunneling protection device includes a base 1, wherein a lifting device is disposed at one end of the base 1;

the generating device is in transmission connection with a branch plate 17, and a buffer device is arranged between the branch plate 17 and the coal mine 20;

the lifting device comprises a guide post 3, a guide sleeve 4, a latch 5 and a gear 6;

one end of the base 1 is provided with a fixedly connected guide pillar 3, the surface of the guide pillar 3 is provided with a plurality of fixedly connected clamping blocks 15, the clamping blocks 15 are arranged in a second sliding groove 14 in the guide sleeve 4 in a sliding mode, the surface of one side of the guide sleeve 4 is provided with a plurality of fixedly connected clamping teeth 5, the clamping teeth 5 are meshed with the gear 6, the guide sleeves 4 are connected through the cross beam 8, and the height of the two sides can be adjusted according to different terrains under the action of the clamping teeth, so that the protection device is more stable.

Example 2

Referring to fig. 1 to 5, the main differences between the embodiment 2 and the embodiment 1 are: a first sliding groove 7 is formed in the inner side of the guide sleeve 4, two sides of the cross beam 8 are slidably arranged in the first sliding groove 7, a cavity 9 is formed in the cross beam 8, and a fixing device is arranged in the cavity 9;

the fixing device comprises a bidirectional screw rod 10, a threaded sleeve 11 and a clamping plate 12;

the inner wall of the cavity 9 is provided with a two-way screw rod 10 which is rotatably connected, the two-way screw rod 10 is provided with a threaded sleeve 11 which is in threaded connection, one end of the threaded sleeve 11 is fixedly connected with a clamping plate 12, a fixed rubber pad 13 is arranged inside the clamping plate 12, and a supporting column 16 is clamped inside the clamping plate 12, so that the device is more stable, and the supporting column 16 can support a coal mine 20;

one end of the supporting column 16 is fixedly connected with the surface of the cross beam 8, one end of the supporting column 16, which is far away from the cross beam 8, is fixedly connected with the middle surface of the protection plate 18, and two sides of the supporting column 16 are fixedly supported by the inner walls of the protection plate 18 through the support distribution plate 17; the function of the device is to disperse the stress on the supporting column 16, so that the service life of the device is longer;

a buffer device is arranged between the protection plate 18 and the coal mine 20;

the buffer device comprises a top plate 21, a connecting rod 22, a fixed block 23 and a sliding rod 24;

the surface of the protection plate 18 is provided with a plurality of fixing blocks 23 which are symmetrical pairwise, sliding rods 24 which are fixedly connected are arranged between the fixing blocks 23, sliding blocks 25 which are connected in a sliding mode are symmetrically arranged on the sliding rods 24, springs 26 which are fixedly connected are arranged between the sliding blocks 25, a top plate 21 which is fixedly connected is arranged on the inner wall of the coal mine 20, connecting rods 22 are symmetrically hinged to the top plate 21, and the tail ends of the connecting rods 22 are rotatably connected with the sliding blocks 25, so that the purpose of buffering is achieved, damage of sundries to the device is reduced, and the effect of buffering impact is also achieved;

the surface of base 1 passes through expansion screw 2 and ground fixed connection, the one end of base 1 is equipped with the backup pad, one side of backup pad is equipped with fixed driving piece 19, the output shaft and the gear 6 transmission of driving piece 19 are connected, and the purpose is to gear 6 transmission.

The utility model discloses a theory of operation is: firstly, according to the height of the terrain adjusting device, a driving part 19 is started, the driving part 19 enables a gear 6 to rotate, the gear 6 enables a guide sleeve 4 to slide upwards, and further drives branch plates 17 to move upwards, so that the branch plates 17 on the left side and the right side keep the same height, the stability of the device is improved, then a bidirectional screw rod 10 is started, the bidirectional screw rod 10 rotates, threaded sleeves 11 are made to approach each other until supporting columns 16 are tightly clamped between clamping plates 12, the stability of the supporting columns 16 is enhanced, when the device is collided by sundries, a top plate 21 can be pressed downwards, a sliding block 25 can slide towards two sides on a sliding rod 24, a spring 26 between the sliding blocks 25 is stretched, and damage caused by collision is reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. A protective device for coal mining and tunneling is characterized by comprising a base;

one end of the base is provided with a lifting device, the lifting device is in transmission connection with the branch plate, and a buffer device is arranged between the branch plate and the coal mine;

the lifting device comprises a guide pillar, a guide sleeve, a clamping tooth and a gear;

one end of the base is provided with a guide post which is fixedly connected, the surface of the guide post is provided with a plurality of clamping blocks which are fixedly connected,

the fixture block is arranged in a second sliding groove in the guide sleeve in a sliding mode, a plurality of fixedly connected clamping teeth are arranged on the surface of one side of the guide sleeve, the clamping teeth are meshed with the gear, and the guide sleeve is connected through the cross beam.

2. A shield for a coal mining tunnel according to claim 1, wherein an inner side of the guide bush is opened

The two sides of the cross beam are arranged inside the first sliding groove in a sliding mode, a cavity is formed in the cross beam, and a fixing device is arranged inside the cavity;

the fixing device comprises a bidirectional screw rod, a threaded sleeve and a clamping plate;

the inner wall of the cavity is provided with a two-way screw rod which is rotationally connected, the two-way screw rod is provided with a thread sleeve which is in threaded connection,

one end of the threaded sleeve is fixedly connected with the clamping plate, a fixed rubber pad is arranged inside the clamping plate, and a supporting column is clamped inside the clamping plate.

3. The shield device for coal mining and tunneling according to claim 2, wherein one end of the support column is fixedly connected with the surface of the cross beam, one end of the support column, which is far away from the cross beam, is fixedly connected with the middle surface of the protection plate, and two sides of the support column are fixedly supported with the inner wall of the protection plate through the support plate.

4. A shield for a coal mine according to claim 3 wherein the shield is located between the coal mine and the coal mine

A buffer device is arranged between the two plates;

the buffer device comprises a top plate, a connecting rod, a fixed block and a sliding rod;

the surface of the protection plate is provided with a plurality of fixing blocks which are symmetrical in pairs, and a slide block which is fixedly connected is arranged between the fixing blocks

The pole, the symmetry is equipped with sliding connection's slider on the slide bar, be equipped with fixed connection's spring between the slider, be equipped with fixed connection's roof on the inner wall in colliery, the symmetry articulates on the roof has the connecting rod, the end and the slider of connecting rod rotate to be connected.

5. The shield device for coal mining excavation according to claim 1, wherein the surface of the base is fixedly connected with the ground through an expansion screw, a support plate is arranged at one end of the base, a fixed driving member is arranged on one side of the support plate, and an output shaft of the driving member is in transmission connection with a gear.

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