CN219159005U

CN219159005U - Device for temporary support of underground coal mine rock drift tunneling

Info

Publication number: CN219159005U
Application number: CN202223135393.6U
Authority: CN
Inventors: 张定山; 何立菊; 高林平; 卓军; 赵海波; 高思雄
Original assignee: Sichuan Huayingshan Longtan Coal Co ltd
Current assignee: Sichuan Huayingshan Longtan Coal Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-06-09
Anticipated expiration: 2032-11-24

Abstract

The utility model belongs to the technical field of underground coal mine construction equipment, and particularly relates to a temporary support device for underground coal mine rock drift tunneling, which comprises the following components: the steel plate-type roadway support comprises four steel plates, two connecting rods, two I-shaped steels, a plurality of resin anchor rods, a wood plate, four hanging rings and the like, wherein the four hanging rings are hung on fulcra of the resin anchor rods, the two I-shaped steels respectively penetrate through the centers of the hanging rings along the roadway to extend to the head sections of the steel plates, and the wood plate is paved above the I-shaped steel beams extending to the head sections of the steel plates. The device has the advantages that after the device is put into use, before the operation personnel construct the anchor rod to support the top plate, the anchor rod support section is not constructed at the tunneling head section, the operation period no longer belongs to the overhead operation, the personal safety of the operation personnel is greatly ensured, the device is easy to install, the required materials are common materials in the technical field of underground coal mine construction equipment, and the required cost is low.

Description

Device for temporary support of underground coal mine rock drift tunneling

Technical Field

The utility model belongs to the technical field of underground coal mine construction equipment, and particularly relates to a temporary support device for underground coal mine rock drift tunneling.

Background

When the mine rock roadway blasting tunneling operation is performed, before the roof is supported by the anchor rod, the anchor rod supporting section is not yet constructed on the tunneling head section, the operation personnel operation period belongs to the overhead operation, most of temporary supporting in the prior art adopts a temporary supporting mode of a supporting frame, the supporting mode has the problem of unstable supporting, the effect is not ideal, and the safety threat to the operation personnel is still great.

Disclosure of Invention

The utility model aims to provide a device for temporary support of underground coal mine rock drift tunneling, which is firm in support.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

a device for temporary support of underground coal mine rock roadway tunneling, comprising: ditch, tillite head section still include: the steel plate comprises a first steel plate, a second steel plate, a third steel plate, a fourth steel plate, a first connecting rod, a second connecting rod, I-steel, screw teeth, square heads, resin anchor rods, wood plates, hanging rings and I-steel beams;

the first steel plate, the third steel plate, the second steel plate and the fourth steel plate are sequentially connected with each other at an included angle of 90 degrees, the two ends of the cuboid are formed through welding, the second connecting rod is welded in a round hole of the third steel plate, a certain length is reserved in the round hole penetrating through the third steel plate, the first connecting rod is used for penetrating through the round hole of the fourth steel plate and is in contact with the bottom of the I-shaped steel, the I-shaped steel penetrates through the center of the lifting ring along the roadway to extend to the head section of the steel, the lifting ring is hung on a fulcrum of the resin anchor rod, and a wood plate is paved above the I-shaped steel beam extending to the head section of the steel.

Further, the round hole of the fourth steel plate and the round hole of the third steel plate are positioned in the centers of the fourth steel plate and the third steel plate, and the diameter of the round hole is equal to that of the first connecting rod and the second connecting rod.

Further, the inner side of the round hole of the fourth steel plate is provided with a thread.

Further, the outer surface of the first connecting rod is provided with a thread, a square head is provided at one end port part, the inner side of the second connecting rod is provided with a straight hole with the diameter equal to that of the resin anchor rod, and the thread is provided in the straight hole.

Further, one third of the total length of the second connecting rod is welded in the round hole of the third steel plate, a certain length is reserved through the round hole of the third steel plate, and the part of the second connecting rod, which passes through the third steel plate, is welded.

Further, the first connecting rod is used for penetrating through the round hole of the fourth steel plate and is contacted with the bottom of the I-steel, and the square head is far away from the bottom of the I-steel.

Further, on the first row of resin anchor rods of the tillite head section, two resin anchor rods which are equidistant on two sides of a central line of a roadway and close to the central line are selected as a first group of fulcrums, and two resin anchor rods which are on the same line with the first group in the fifth row of resin anchor rods of the tillite head section are selected as a second group of fulcrums.

Further, the four hanging rings are hung on the fulcrums of the four resin anchor rods respectively.

Further, the two I-steel beams respectively penetrate through the centers of the four hanging rings along the roadway trend and extend to the head section of the tillus, and every two hanging rings along the roadway trend are in a group.

The utility model has the following advantages and beneficial effects: the four steel plates are sequentially welded to form a cuboid with two through ends at an included angle of 90 degrees, the bearing capacity and stability of the lifting rings are improved, the second connecting rod is welded in a round hole of the third steel plate, the inner side and the outer side are welded during welding, the stability of the lifting rings suspended on the resin anchor rod is improved, the second connecting rod penetrates through the round hole of the third steel plate to be a certain length, downward jacking force is provided for the top of the I-steel, the first connecting rod penetrates through the round hole of the fourth steel plate to provide upward jacking force for the bottom of the I-steel, so that the I-steel cannot shake at will, the four lifting rings are respectively hung on four fulcrums of the resin anchor rod, the I-steel extending to the center of the lifting rings along the roadway can stably lift a plurality of boards, the I-steel beam extending to the head section of the lifting rings is paved above the I-steel beam, the operation staff is enabled to support the boards before the roof of the construction anchor rod, the head section of the driving anchor rod is not constructed, the operation is not under the overhead operation, the safety of the operation staff is guaranteed to a great extent, and the required underground coal mine installation material is required by the technical cost of the underground construction equipment.

Drawings

FIG. 1 is a schematic diagram of a front view structure of a device for temporary support of underground rock drivage in a coal mine;

FIG. 2 is a schematic side view of a temporary support device for underground rock drivage in a coal mine;

FIG. 3 is a three-view of a lifting ring of a temporary support device for underground coal mine rock drivage, provided by the utility model;

FIG. 4 is a front view of a lifting ring of the device for temporary support of underground coal mine rock drivage;

FIG. 5 is a side view of a lifting ring of a temporary support device for underground coal mine rock drivage;

FIG. 6 is a top view of a lifting ring of the device for temporary support of underground coal mine rock drivage;

FIG. 7 is an enlarged schematic view of a lifting ring in front view of a temporary support device for underground coal mine rock drivage according to the utility model;

fig. 8 is a schematic diagram of an enlarged B structure in a front view of a lifting ring of a temporary support device for underground coal mine rock drivage.

Icon: 101-a first steel plate; 102-a second steel plate; 103-a third steel plate; 104-a fourth steel plate; 201-a first link; 202-a second link; 3-I-steel; 4-silk teeth; 5-square head; 6-resin anchor rods; 7-wood boards; 8-hanging rings; 9-ditch; 10-I-shaped steel beams; 11-tillite head section.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of 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, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1, 2, 3, 7 and 8, the embodiment provides a device for temporary support of underground coal mine rock roadway tunneling, which comprises: ditch 9, tillite head section 11, characterized by further comprising: the steel plate comprises a first steel plate 101, a second steel plate 102, a third steel plate 103, a fourth steel plate 104, a first connecting rod 201, a second connecting rod 202, I-steel 3, screw threads 4, square heads 5, resin anchor rods 6, wood plates 7, hanging rings 8 and I-steel beams 10;

the first steel plate 101, the third steel plate 103, the second steel plate 102 and the fourth steel plate 104 are sequentially connected with each other at an included angle of 90 degrees, the two ends of the rectangular solid are formed by welding, the second connecting rod 202 is welded in a round hole of the third steel plate 103, a certain length is reserved through the round hole of the third steel plate 103, the first connecting rod 201 is used for penetrating through the round hole of the fourth steel plate 104 and is in contact with the bottom of the I-shaped steel 3, the I-shaped steel 3 extends to the head section 11 from the center of the lifting ring 8 along the roadway, the lifting ring 8 is hung on a fulcrum of the resin anchor rod 6, and the wood plate 7 is paved above the I-shaped steel beam 10 extending to the head section 11.

In the above device, referring to fig. 3, 7 and 8, in order to satisfy the stability of the lifting ring 8, the circular hole of the fourth steel plate 104 and the circular hole of the third steel plate 103 are located in the centers of the fourth steel plate 104 and the third steel plate 103, the diameter of the circular hole is equal to that of the first connecting rod 201 and that of the second connecting rod 202, the thread 4 is formed on the inner side of the circular hole of the fourth steel plate 104, the thread 4 is formed on the outer surface of the first connecting rod 201, the square head 5 is formed on one end port portion, a straight hole with the diameter equal to that of the resin anchor rod 6 is formed on the inner side of the second connecting rod 202, and the thread 4 is formed in the straight hole. One third of the total length of the second connecting rod 202 is welded in the round hole of the third steel plate 103, a certain length is reserved through the round hole of the third steel plate 103, a downward jacking force is provided for the top of the I-steel 3, the second connecting rod 202 penetrates through the part of the third steel plate 103 to be welded, the firmness of the second connecting rod is guaranteed, the first connecting rod 201 penetrates through the round hole of the fourth steel plate 104, an upward jacking force is provided for the bottom of the I-steel 3, the square head 5 is far away from the bottom of the I-steel 3, the I-steel 3 cannot shake randomly, and the stability of the device is greatly improved.

Wherein, on the first row of resin anchor rods 6 of the tillite head section 11, two resin anchor rods 6 which are equidistant on two sides of a roadway center line and are close to the center line are selected as a first group of fulcrums, two resin anchor rods 6 which are selected from the fifth row of resin anchor rods 6 of the tillite head section 11 and are on the same line as a first group of fulcrums, and four hanging rings 8 are respectively hung on the fulcrums of the four resin anchor rods 6 to form a stable frame structure, so that two I-shaped steel beams 10 are stably hung by the four hanging rings 8.

It should be noted that the two i-beams 3 respectively penetrate through the centers of the four hanging rings 8 along the roadway trend and extend to the tillite head section 11, every two hanging rings 8 along the roadway trend are in a group, the wood boards 7 are paved above the i-beams 10 extending to the tillite head section 11, the safety risk caused by gangue dropping during operation of the tillite head section 11 is prevented, and the personal safety of operators is ensured.

Specifically, when the hydraulic jack is used, after the construction of the anchor rods in the blasting rock-digging roadway is finished, top plate supporting points are preferably selected, two resin anchor rods 6 which are equidistant on two sides of a roadway center line and are close to the center line are selected as a first group of supporting points on the first row of resin anchor rods 6, then two resin anchor rods 6 which are selected on the same line as the first group of resin anchor rods 6 in the fourth row of resin anchor rods 6 are selected as a second group of supporting points, the four processed hoisting rings 8 are respectively hung on the four designated supporting points, two mining I-shaped steel beams 10 pass through the hoisting rings 8 along the trend and extend to the tunneling head section 11 respectively, each two of the hoisting rings 8 along the trend are in one group, a wood plank 7 is paved above the I-shaped steel beams 10 extending to the tunneling head section 11, the waste rock is prevented from being caused by falling during the operation of the headpiece 11, the personnel safety of the I-shaped steel beams 10 is ensured, after the installation of the I-shaped steel beams 10, the first connecting rods 201 at the lower ends of the hoisting rings 8 are fastened by using a spanner for clamping the I-shaped steel beams 10 in the hoisting rings, after each time, the hoisting rings 10 are moved by screwing down the hoisting rings 10 at the same position as the hoisting rings 10 at the preset position, and when the stretching the hoisting rings 10 is moved to the position by the same direction, the stretching direction of the hoisting rings 10 is carried out, and the hoisting rings 10 is moved by the preset, and the stretching the direction, and the hoisting rings 10.

The utility model solves the problems that the working personnel cannot construct the anchor rod support section before constructing the anchor rod support top plate, the working period belongs to overhead working and threatens the safety of the working personnel, the personal safety of the working personnel is greatly ensured, and meanwhile, the device is easy to install, the required materials are all common materials in the technical field of underground coal mine construction equipment, and the required cost is low.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A device for temporary support of underground coal mine rock roadway tunneling, comprising: ditch (9), tillite head section (11), its characterized in that still includes: the steel plate comprises a first steel plate (101), a second steel plate (102), a third steel plate (103), a fourth steel plate (104), a first connecting rod (201), a second connecting rod (202), I-steel (3), screw teeth (4), square heads (5), resin anchor rods (6), wood plates (7), hanging rings (8) and I-steel beams (10);

the novel steel plate comprises a first steel plate (101), a third steel plate (103), a second steel plate (102) and a fourth steel plate (104), wherein the first steel plate, the third steel plate, the second steel plate (102) and the fourth steel plate (104) are sequentially connected with each other at an included angle of 90 degrees, two ends of the rectangular solid are formed through welding, a second connecting rod (202) is welded in a round hole of the third steel plate (103), a certain length is reserved through the round hole of the third steel plate (103), the first connecting rod (201) is used for penetrating through the round hole of the fourth steel plate (104) and is in contact with the bottom of an I-shaped steel (3), the I-shaped steel (3) penetrates through the center of a lifting ring (8) along a roadway to extend to a head section (11) of the steel plate, the lifting ring (8) is hung on a fulcrum of a resin anchor rod (6), and a wood plate (7) is paved above an I-shaped steel beam (10) extending to the head section (11) of the steel plate.

2. The device for temporary support of underground coal mine rock roadway tunneling according to claim 1, wherein the round hole of the fourth steel plate (104) and the round hole of the third steel plate (103) are positioned in the center of the fourth steel plate (104) and the third steel plate (103), and the diameter of the round hole is equal to the diameters of the first connecting rod (201) and the second connecting rod (202).

3. A device for temporary support of underground rock drivage in coal mine according to claim 2, wherein the inner side of the round hole of the fourth steel plate (104) is formed with screw teeth (4).

4. A device for temporary support of underground rock drivage in coal mine according to claim 1, wherein the outer surface of the first connecting rod (201) is provided with a thread (4) and a square head (5) is provided at one end port part, the inner side of the second connecting rod (202) is provided with a straight hole with the diameter equal to that of the resin anchor rod (6), and the thread (4) is provided in the straight hole.

5. The device for temporary support of underground coal mine rock roadway heading as recited in claim 4, wherein one third of the total length of said second connecting rod (202) is welded into the circular hole of the third steel plate (103) and a certain length is left through the circular hole of the third steel plate (103), and said second connecting rod (202) is welded through the part of the third steel plate (103).

6. The device for temporary support of underground coal mine rock roadway tunneling according to claim 4, wherein the square head (5) is far away from the bottom of the I-steel (3).

7. The device for temporary support of underground coal mine rock roadway tunneling according to claim 1, wherein on the first row of resin anchors (6) of the head section (11), two resin anchors (6) which are equidistant on two sides of a roadway center line and are close to the center line are selected as a first group of fulcrums, and two resin anchors (6) which are on the same line with the first group are selected as a second group of fulcrums in the fifth row of resin anchors (6) of the head section (11).

8. A device for temporary support of underground coal mine rock roadway tunnelling as claimed in claim 7, wherein said four suspension rings (8) are suspended from the respective fulcrums of four resin anchors (6).

9. The device for temporary support of underground coal mine rock roadway tunneling according to claim 1, wherein the two I-beams (3) respectively penetrate through the centers of the four hanging rings (8) along the roadway trend and extend to the head sections (11), and each two hanging rings (8) along the roadway trend are in a group.