A retractable full-shield full-face coal mine tunneling and bolting equipment

Abstract

The present invention belongs to the field of construction machinery, and specifically relates to a coal mine tunneling and bolting equipment with a telescopic full shield and full section, including a tunneling and bolting machine body, on which a telescopic bolt drilling mechanism, a telescopic side shield mechanism and a telescopic temporary support mechanism are respectively arranged. By setting a supplementary support bolt drilling unit on the tunneling and bolting machine body, the present invention can greatly shorten the distance of roof bolt supplementary support; through the setting of the telescopic bolt drilling mechanism, the empty roof distance can be greatly reduced; through the setting of the telescopic side shield mechanism, the danger of side wall caving and peeling on both sides of the roadway after cutting can be effectively prevented; through the setting of the telescopic temporary support mechanism, the effect of forward movement of the temporary support can be effectively achieved. Through the coordinated setting of the telescopic bolt drilling mechanism, the telescopic side shield mechanism and the telescopic temporary support mechanism, the present invention realizes a full shield protection mode, which can effectively isolate the front operators from danger.

Description

Technical Field

[0001] The invention belongs to the field of construction machinery, and particularly relates to a coal mine tunneling and bolting equipment with a retractable full shield and full section. Background Art

[0002] The existing integrated tunneling and bolting system, as Figure 1 shown, generally includes a tunneling and bolting machine body 001 and a bolt transportation and drilling vehicle 002 connected front and back. A cutting part 0011, a temporary support 0012, a roof bolt drill 0013 of the tunneling and bolting machine body, a telescopic platform 0014 and a side bolt drill 0015 are arranged on the tunneling and bolting machine body 001. A roof bolt drill 0021 of the bolt transportation and drilling vehicle and a side bolt of the bolt transportation and drilling vehicle 0022 are arranged on the bolt transportation and drilling vehicle 002. The existing integrated tunneling and bolting system generally has the following problems:

[0003] 1. Due to the reason that the cutting drum of the cutting part 0011 is a non-crossable component, when starting to tunnel forward, the empty roof distance X generally exceeds more than two meters;

[0004] 2. The protection area is small. The geological structure of domestic coal mines is complex. There are geological hazards such as falling coal and roof caving on the roof, and rib spalling on the side ribs, which greatly increases the safety risk of operators;

[0005] 3. Due to the position of the bolt drill configuration, that is, according to the setting form of the roof bolt drill 0013 of the tunneling and bolting machine body and the roof bolt drill 0021 of the bolt transportation and drilling vehicle, the top anchor supplementary support distance Y is delayed by multiple row distances, and reliable protection cannot be provided for the equipment and personnel. Summary of the Invention

[0006] Aiming at the above problems, the purpose of the present invention is to provide a coal mine tunneling and bolting equipment with a retractable full shield and full section.

[0007] The purpose of the present invention is achieved by the following technical solutions:

[0008] A coal mine tunneling and bolting equipment with a retractable full shield and full section includes a tunneling and bolting machine body, and a retractable bolt drill mechanism, a retractable lateral shield mechanism and a retractable temporary support mechanism are respectively arranged on the tunneling and bolting machine body;

[0009] The retractable bolt drill mechanism is arranged at the front part of the tunneling and bolting machine body and includes a plurality of bolt drills A, and each bolt drill A moves back and forth through the drive of the retractable bolt drill mechanism;

[0010] The retractable lateral shield mechanism includes a shield plate, and the retractable lateral shield mechanism drives the shield plate to move in the left-right direction of the tunneling and bolting machine body, and when the shield plate moves to the outside of the tunneling and bolting machine body, it closely adheres to the inner wall of the roadway where the tunneling and bolting machine body is located;

[0011] The retractable temporary support mechanism includes a support plate group for temporarily supporting the top surface of the roadway, and the retractable temporary support mechanism drives the support plate group to move up and down and back and forth.

[0012] At least one set of supplementary support bolt drilling rig groups are further provided on the roadheader-anchor rig body, and each set of supplementary support bolt drilling rig groups includes a number of bolt drilling rigs B.

[0013] Slewing motor mounting seats are provided on the roadheader-anchor rig body at positions corresponding to the installation positions of each bolt drilling rig B, a slewing motor is installed on each slewing motor mounting seat, and the output end of each slewing motor is fixedly connected to the housing of the corresponding bolt drilling rig B.

[0014] The retractable bolt drilling mechanism further includes a bolt drilling rig A mounting seat and a driving oil cylinder A. A telescopic slideway is provided on the roadheader-anchor rig body. The bolt drilling rig A mounting seat is slidably connected to the telescopic slideway. The driving oil cylinder A is installed on the roadheader-anchor rig body and drives the bolt drilling rig A mounting seat to move back and forth relative to the telescopic slideway. Each bolt drilling rig A is respectively installed on the bolt drilling rig A mounting seat.

[0015] The retractable side shield mechanism further includes a slideway plate and a driving oil cylinder B respectively installed on the roadheader-anchor rig body. The shield plate is slidably connected to the slideway plate, and the driving oil cylinder B drives the shield plate to move through telescoping.

[0016] A support door beam is provided on the roadheader-anchor rig body, and an auxiliary telescopic beam is provided between the support door beam and the slideway plate.

[0017] A number of scraper boxes arranged in parallel from top to bottom are provided at the front end of the shield plate. A driving oil cylinder C with the same number and one-to-one correspondence as the scraper boxes is provided inside the shield plate. Each scraper box is respectively driven by the corresponding driving oil cylinder C installed inside the shield plate to perform telescoping back and forth, and a cutting head A is provided at the front end of each scraper box.

[0018] The retractable temporary support mechanism further includes a number of oil cylinder groups. Each oil cylinder group includes a telescoping oil cylinder, an auxiliary oil cylinder and a retracting oil cylinder which are cooperatively arranged. The bottom ends of the telescoping oil cylinders, the bottom ends of the auxiliary oil cylinders and the bottom ends of the retracting oil cylinders of each group are respectively hinged to the roadheader-anchor rig body. The top ends of the telescoping oil cylinders, the top ends of the auxiliary oil cylinders and the top ends of the retracting oil cylinders of each group are respectively hinged to the support plate group. The telescoping oil cylinders and the auxiliary oil cylinders of each group form a parallelogram link structure with the support plate group and the roadheader-anchor rig body, and the retracting oil cylinders of each group support the support plate group.

[0019] A number of cutting heads B are provided at the front end of the support plate group.

[0020] On the top surface of the support plate group, there are several groups of support rollers that are arranged in parallel and can rotate independently.

[0021] The advantages and positive effects of the present invention are as follows:

[0022] By arranging a supplementary support bolt drilling unit on the continuous miner body, the present invention can greatly shorten the distance of supplementary support for roof bolts and improve safety; by arranging a telescopic bolt drilling mechanism, the bolt drilling machine A can extend forward, and bolts can be drilled as far forward as possible within the range not exceeding the cutting drum of the cutting unit, significantly reducing the unprotected roof distance; by arranging a telescopic side shield mechanism, the risk of side wall caving and peeling on both sides of the roadway after cutting can be effectively prevented; by arranging a telescopic temporary support mechanism, the support plate group can move and support obliquely forward and upward to achieve the effect of moving the temporary support forward. Through the coordinated arrangement of the telescopic bolt drilling mechanism, the telescopic side shield mechanism and the telescopic temporary support mechanism, the present invention realizes a full shield protection mode, which can effectively isolate the operators in the front from danger. Brief Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of a continuous miner system in the prior art;

[0024] Figure 2 It is a schematic overall structural diagram of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the telescopic bolt drilling mechanism of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the telescopic side shield mechanism of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the telescopic temporary support mechanism of the present invention;

[0028] Figure 6 It is a schematic structural diagram of the support plate group when it extends of the present invention;

[0029] Figure 7 It is a schematic structural diagram of the support plate group when it retracts of the present invention.

[0030] In the figures: 001 is the continuous miner body, 0011 is the cutting unit, 0012 is the temporary support, 0013 is the roof bolt drill of the continuous miner, 0014 is the telescopic platform, 0015 is the rib bolt drill, 002 is the bolt transportation drill vehicle, 0021 is the roof bolt drill of the bolt transportation drill vehicle, 0022 is the rib bolt of the bolt transportation drill vehicle.

[0031] 1 is the bolt drill A, 2 is the shield plate, 3 is the support plate group, 4 is the bolt drill B, 5 is the rotary motor mounting seat, 6 is the rotary motor, 7 is the bolt drill A mounting seat, 8 is the telescopic slideway, 9 is the slideway plate, 10 is the support door beam, 11 is the auxiliary telescopic beam, 12 is the scraper box, 13 is the cutting head A, 14 is the extending oil cylinder, 15 is the auxiliary oil cylinder, 16 is the retracting oil cylinder, 17 is the cutting head B, 18 is the support roller. Specific embodiments

[0032] The following will further elaborate on the present invention in conjunction with the attached Figure 2-7 drawings.

[0033] A retractable full-shield full-section coal mine tunneling and bolting equipment, as Figure 2-5 shown, includes the tunneling and bolting integrated machine body 001, and a retractable bolt drilling mechanism, a retractable side shield mechanism, and a retractable temporary support mechanism are respectively provided on the tunneling and bolting integrated machine body 001.

[0034] The retractable bolt drilling mechanism is arranged at the front part of the tunneling and bolting integrated machine body 001, and includes a plurality of bolt drills A1, and each bolt drill A1 moves back and forth through the drive of the retractable bolt drilling mechanism.

[0035] The retractable side shield mechanism includes the shield plate 2, and the retractable side shield mechanism drives the shield plate 2 to move in the left-right direction of the tunneling and bolting integrated machine body 001, and when the shield plate 2 moves to the outside of the tunneling and bolting integrated machine body 001, it closely adheres to the inner wall of the roadway of the tunneling and bolting integrated machine body 001.

[0036] The retractable temporary support mechanism includes the support plate group 3 for temporarily supporting the top surface of the roadway, and the retractable temporary support mechanism drives the support plate group 3 to move up and down and back and forth.

[0037] Specifically, as Figure 3 shown, in this embodiment, two groups of supplementary support bolt drilling units are further provided on the tunneling and bolting integrated machine body 001. Both groups of supplementary support bolt drilling units are located at the rear upper part of the tunneling and bolting integrated machine body 001, and the bolt drill B 4 of the first group of supplementary support bolt drilling units is in front of the bolt drill B 4 of the second group of supplementary support bolt drilling units. The first group of supplementary support bolt drilling units includes two bolt drills B 4, and the second group of supplementary support bolt drilling units includes three bolt drills B 4. A rotary motor mounting seat 5 is provided at the position corresponding to the setting position of each bolt drill B 4 on the tunneling and bolting integrated machine body 001, and a rotary motor 6 is installed on each rotary motor mounting seat 5. The output end of each rotary motor 6 is fixedly connected to the outer shell of the corresponding bolt drill B 4. By providing the supplementary support bolt drilling units on the tunneling and bolting integrated machine body 001, the top bolt supplementary support distance Y can be greatly shortened, and the safety guarantee can be improved; through the setting of the rotary motor 6, the bolt drill B 4 can flexibly drill bolts at multiple angles.

[0038] Specifically, as Figure 3 shown, in this embodiment, the retractable bolt drilling mechanism further includes a bolt drilling rig A mounting base 7 and a driving oil cylinder A (not shown in the figure). A retractable slideway 8 is provided on the roadheader-anchor rig integrated machine body 001. The bolt drilling rig A mounting base 7 is slidably connected to the retractable slideway 8. The driving oil cylinder A is mounted on the roadheader-anchor rig integrated machine body 001 and drives the bolt drilling rig A mounting base 7 to move back and forth relative to the retractable slideway 8. Each bolt drilling rig A1 is respectively mounted on the bolt drilling rig A mounting base 7. In this embodiment, two sets of symmetrically arranged retractable bolt drilling mechanisms are mounted on the front part of the roadheader-anchor rig integrated machine body 001. Two bolt drilling rigs A1 are respectively mounted on the bolt drilling rig A mounting bases 7 of each set of retractable bolt drilling mechanisms, that is, there are a total of four bolt drilling rigs A1. Through the cooperative arrangement of the driving oil cylinder A, the retractable slideway 8 and the bolt drilling rig A mounting base 7, the bolt drilling rig A1 can be extended forward, and bolts can be drilled as far forward as possible within the range not exceeding the cutting drum of the cutting part 0011, greatly reducing the empty roof distance X.

[0039] Specifically, as Figure 4As shown in the figure, in this embodiment, the retractable side shield mechanism further includes a slideway plate 9 and a driving oil cylinder B (not shown in the figure) respectively installed on the roadheader-anchoring machine body 001. The driving oil cylinder B is installed on the lower side of the slideway plate 9. The shield plate 2 is slidably connected to the slideway plate 9. The driving oil cylinder B drives the shield plate 2 to move through expansion and contraction. A support gantry 10 is provided on the roadheader-anchoring machine body 001. An auxiliary telescopic beam 11 is provided between the support gantry 10 and the slideway plate 9. The auxiliary telescopic beam 11 includes a hollow sleeve part and a telescopic beam part. The hollow sleeve part is connected to the support gantry 10. One end of the telescopic beam part is connected to the shield plate 2 and the other end extends into the interior of the hollow sleeve part. The axial centerlines of the auxiliary telescopic beam 11 and the driving oil cylinder B are parallel to each other. Four cutter boxes 12 arranged parallel to each other from top to bottom are provided at the front end of the shield plate 2. The same number of driving oil cylinders C corresponding one by one are provided inside the shield plate 2. Each cutter box 12 is respectively driven by a corresponding driving oil cylinder C (not shown in the figure) installed inside the shield plate 2 and performs forward and backward expansion and contraction. A cutting head A13 is provided at the front end of each cutter box 12. In this embodiment, a set of retractable side shield mechanisms are respectively installed on the left and right sides of the roadheader-anchoring machine body 001, which are respectively used to support the inner walls of the roadways on the left and right sides of the roadheader-anchoring machine body 001. Through the arrangement of the large-area shield plate 2, the danger of sidewall caving and peeling on both sides of the roadway after cutting can be effectively prevented; through the cooperative arrangement of the slideway plate 9 and the driving oil cylinder B, the shield plate 2 can be conveniently extended and effectively pressed against the roadway; through the cooperative arrangement of the support gantry 10 and the auxiliary telescopic beam 11, the shield plate 2 can be stably extended; through the arrangement of multiple sets of retractable cutter boxes 12 respectively driven by the driving oil cylinder C, as the cutting part 0011 works from top to bottom, they will accurately and orderly extend forward in turn, conforming to the cutting arc of the heading face, blocking the peeling of both sidewalls, and correcting the two side roadways that are not cut neatly by the cutting part 0011, ensuring the safety of the equipment and the staff.

[0040] Specifically, as Figure 5-7As shown in the figure, in this embodiment, the retractable temporary support mechanism further includes two sets of oil cylinder groups. Each oil cylinder group includes an extended oil cylinder 14, an auxiliary oil cylinder 15 and a retracted oil cylinder 16 which are arranged in cooperation. The extended oil cylinders 14, the auxiliary oil cylinders 15 and the retracted oil cylinders 16 of the two sets correspond to each other and are parallel. The bottom ends of the extended oil cylinders 14, the auxiliary oil cylinders 15 and the retracted oil cylinders 16 of each group are respectively hinged to the roadheader-anchoring machine body 001. The top ends of the extended oil cylinders 14, the auxiliary oil cylinders 15 and the retracted oil cylinders 16 of each group are respectively hinged to the support plate group 3. The extended oil cylinders 14, the auxiliary oil cylinders 15 of each group and the support plate group 3 and the roadheader-anchoring machine body 001 form a parallelogram link structure. The retracted oil cylinders 16 of each group support the support plate group 3. A plurality of cutting heads B17 are provided at the front end of the support plate group 3. A plurality of groups of rotatable support rollers 18 arranged in parallel are provided on the top surface of the support plate group 3. Through the setting of the retractable temporary support mechanism, the support plate group 3 can be moved and supported obliquely forward and upward, effectively achieving the effect of forward movement of the temporary support; through the setting of the cutting heads B17, the top surface of the roadway can be corrected during the forward movement; through the setting of the support rollers 18, the friction between the support plate group 3 and the top surface of the roadway can be reduced, facilitating the forward movement of the support plate group 3.

[0041] Working principle:

[0042] By setting a supplementary support bolt drilling machine set on the roadheader-anchoring machine body 001, the distance Y of the top bolt supplementary support can be greatly shortened, improving safety guarantee; through the cooperative setting of the driving oil cylinder A, the telescopic slideway 8 and the bolt drilling machine A mounting seat 7, the bolt drilling machine A1 can extend forward to the front side and drill bolts as far forward as possible within the range not exceeding the cutting drum of the cutting part 0011, greatly reducing the empty roof distance X; through the setting of the large-area shield plate 2, the danger of side wall deviation and peeling on both sides of the roadway after cutting can be effectively prevented; through the setting of multiple sets of retractable shovel box 12 driven by the driving oil cylinder C respectively, as the cutting part 0011 works from top to bottom, they will accurately and orderly extend forward in turn, conforming to the cutting arc of the heading face, blocking the peeling of both side walls, and correcting the two-side roadways that are not cut neatly by the cutting part 0011, ensuring the safety of the equipment and the staff; through the setting of the retractable temporary support mechanism, the support plate group 3 can be moved and supported obliquely forward and upward to achieve the effect of forward movement of the temporary support.

Claims

1. A retractable full-shield full-face coal mine tunneling and bolting equipment, comprising a tunneling and bolting integrated machine body (001), characterized in that: On the roadheader-anchoring machine body (001), a retractable bolt drilling mechanism, a retractable side shield mechanism and a retractable temporary support mechanism are respectively provided; The retractable bolt drilling mechanism is arranged at the front part of the roadheader-anchoring machine body (001), and includes a plurality of bolt drills A (1). Each bolt drill A (1) moves back and forth through the drive of the retractable bolt drilling mechanism; The retractable side shield mechanism includes a shield plate (2). The retractable side shield mechanism drives the shield plate (2) to move in the left-right direction of the roadheader-anchoring machine body (001), and when the shield plate (2) moves to the outside of the roadheader-anchoring machine body (001), it closely adheres to the inner wall of the roadway where the roadheader-anchoring machine body (001) is located; The retractable temporary support mechanism includes a support plate group (3) for temporarily supporting the top surface of the roadway. The retractable temporary support mechanism drives the support plate group (3) to move up and down and back and forth; The retractable side shield mechanism further includes a slideway plate (9) and a driving oil cylinder B respectively installed on the roadheader-anchoring machine body (001). The shield plate (2) is slidably connected with the slideway plate (9), and the driving oil cylinder B drives the shield plate (2) to move through expansion and contraction; The front end of the shield plate (2) is provided with a plurality of cutter box (12) arranged in parallel from top to bottom. Inside the shield plate (2), there are driving oil cylinders C with the same number as the cutter box (12) and corresponding one by one. Each cutter box (12) is respectively driven by the corresponding driving oil cylinder C installed inside the shield plate (2) and performs front-back expansion and contraction. The front end of each cutter box (12) is provided with a cutting head A (13); The retractable bolt drilling mechanism further includes a bolt drill A mounting seat (7) and a driving oil cylinder A. An expansion slideway (8) is provided on the roadheader-anchoring machine body (001). The bolt drill A mounting seat (7) is slidably connected with the expansion slideway (8). The driving oil cylinder A is installed on the roadheader-anchoring machine body (001) and drives the bolt drill A mounting seat (7) to move back and forth relative to the expansion slideway (8). Each bolt drill A (1) is respectively installed on the bolt drill A mounting seat (7); The front end of the support plate group (3) is provided with a plurality of cutting heads B (17).

2. The fully telescopic full-shield full-face coal mine tunneling and bolting equipment according to claim 1, characterized in that: At least one set of supplementary support bolt drilling units is further provided on the roadheader-anchoring machine body (001). Each set of supplementary support bolt drilling units includes a plurality of bolt drills B (4).

3. The coal mine tunneling and bolting equipment with a retractable full shield and full section according to claim 2, characterized in that: Rotary motor mounting seats (5) are respectively provided on the roadheader-anchoring machine body (001) at positions corresponding to the installation positions of each bolt drill B (4). A rotary motor (6) is installed on each rotary motor mounting seat (5). The output end of each rotary motor (6) is fixedly connected to the outer shell of the corresponding bolt drill B (4).

4. The fully telescopic full-shield full-face coal mine tunneling and bolting equipment according to claim 1, characterized in that: A support gantry (10) is provided on the roadheader-anchoring machine body (001). An auxiliary telescopic beam (11) is provided between the support gantry (10) and the slideway plate (9).

5. The fully telescopic full-shield full-face coal mine tunneling and bolting equipment according to claim 1, characterized in that: The retractable temporary support mechanism further includes a plurality of groups of oil cylinder groups. Each oil cylinder group includes a telescopic oil cylinder (14), an auxiliary oil cylinder (15) and a recovery oil cylinder (16) which are cooperatively arranged. The bottom ends of the telescopic oil cylinders (14), the bottom ends of the auxiliary oil cylinders (15) and the bottom ends of the recovery oil cylinders (16) in each group are respectively hinged to the continuous miner body (001). The top ends of the telescopic oil cylinders (14), the top ends of the auxiliary oil cylinders (15) and the top ends of the recovery oil cylinders (16) in each group are respectively hinged to the support plate group (3). The telescopic oil cylinders (14), the auxiliary oil cylinders (15) in each group and the support plate group (3) and the continuous miner body (001) form a parallelogram link structure, and the recovery oil cylinders (16) in each group support the support plate group (3).

6. The coal mine tunneling and bolting equipment with a retractable full shield and full face according to claim 5, characterized in that: A plurality of groups of rotatable support rollers (18) arranged in parallel are provided on the top surface of the support plate group (3).

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