CN112727513B

CN112727513B - Anchor drilling machine

Info

Publication number: CN112727513B
Application number: CN202110069320.2A
Authority: CN
Inventors: 仇卫建; 杜玉祥; 左岗永; 兰辉敏; 张云波; 王富强; 孟雯杰; 张维果; 陈明建; 弓旭峰; 王威; 闫金宝; 石晓光; 安磊; 郑吉�; 车利明
Original assignee: Taiyuan Institute of China Coal Technology and Engineering Group; Shanxi Tiandi Coal Mining Machinery Co Ltd
Current assignee: Taiyuan Institute of China Coal Technology and Engineering Group; Shanxi Tiandi Coal Mining Machinery Co Ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2022-06-10
Anticipated expiration: 2041-01-19
Also published as: WO2022156085A1; AU2021416459A1; AU2021416459B2; CN112727513A

Abstract

The invention discloses an anchor and protection drilling machine which comprises a top plate, a first expansion piece, a sliding frame, a drilling box and a second expansion piece. The first telescopic device comprises a first body and a first telescopic piece, the first telescopic piece is movably arranged on the first body along a first direction, one end of the first telescopic piece in the length direction is connected with the top plate, and the length direction of the first telescopic piece is parallel to the first direction; the sliding frame is provided with a telescopic cavity and is movably arranged on the first body along a first direction; the drill box is movably arranged on the sliding frame along a first direction; at least part of the second expansion piece is located in the expansion cavity, the second expansion piece is connected with the first body, the second expansion piece is further connected with the sliding frame so as to drive the sliding frame to move along the first direction relative to the first body, and the second expansion piece is further connected with the drill box so as to drive the drill box to move along the first direction relative to the sliding frame. The invention has the advantages of simple and compact structure, small occupied space, convenient maintenance and easy disassembly and assembly.

Description

Anchor drilling machine

Technical Field

The invention relates to the technical field of drilling machines, in particular to an anchor and protection drilling machine.

Background

The drill box of the bolting drill needs to be fed over long distances. The bolting and shotcreting machine of the related art linearly drives the drill box by combining the long feeding cylinder and the short feeding cylinder, and also provides a special cylinder to feed the temporary supporting roof. The number of linear driving pieces is large, so that the anchor rod supporting drilling machine is heavy in structure, large in occupied space, multiple in overhauling steps and difficult to disassemble and assemble.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the invention provides an anchor and protection drilling machine which has the advantages of simple and compact structure, small occupied space, convenience in maintenance and easiness in disassembly and assembly.

The anchor and protection drilling machine comprises the following components: a top plate; the first expansion piece comprises a first body and a first expansion piece, the first expansion piece is movably arranged on the first body along a first direction, one end of the first expansion piece in the length direction is connected with the top plate, and the length direction of the first expansion piece is parallel to the first direction; the sliding frame is provided with a telescopic cavity and is movably arranged on the first body along the first direction; a drill box movably arranged on the carriage along the first direction; and at least part of the second expansion piece is positioned in the expansion cavity, the second expansion piece is connected with the first body, the second expansion piece is further connected with the sliding frame so as to drive the sliding frame to move along the first direction relative to the first body, and the second expansion piece is further connected with the drill box so as to drive the drill box to move along the first direction relative to the sliding frame.

According to the anchor and protection drilling machine disclosed by the embodiment of the invention, part of the second expansion piece is positioned in the expansion cavity of the sliding frame, part of the second expansion piece is arranged on the first body, and the first body is not only a component part of the first expansion piece, but also can provide support for the second expansion piece, so that the support piece is saved. The second telescopic device drives the sliding frame and the drill box to move in the first direction in the telescopic cavity, and no extra space is occupied.

Therefore, the anchor and protection drilling machine provided by the embodiment of the invention has the advantages of simple and compact structure, small occupied space, convenience in maintenance and easiness in disassembly and assembly

In some embodiments, a lengthwise end of the first body is provided with a base, the top plate and the base are arranged opposite to each other in the lengthwise direction of the first body, the carriage and the drill box are located between the top plate and the base in the lengthwise direction of the first body, and the lengthwise direction of the first body is parallel to the first direction.

In some embodiments, the carriage includes a first plate, a second plate, a plurality of first guide bars and a plurality of second guide bars, the first plate and the second plate are oppositely arranged in the first direction, the plurality of first guide bars are arranged at intervals in the second direction, the plurality of second guide bars are arranged at intervals in the second direction, the first guide bars and the second guide bars are spaced apart in a third direction, the telescopic cavity is formed between the first plate and the second plate, the second direction is perpendicular to the first direction, and the third direction is perpendicular to the first direction and the second direction.

In some embodiments, the anchor and protection drilling machine further comprises a moving base, the drilling box is arranged on the moving base, the moving base is provided with a plurality of first guide holes, parts of the first guide rods penetrate through the first guide holes, and the first guide rods and the first guide holes are in one-to-one correspondence.

In some embodiments, the anchor and protection drilling machine further comprises a fixed seat, the fixed seat is arranged on the first body, the fixed seat is provided with a plurality of second guide holes, a part of the second guide rod penetrates through the second guide holes, and the plurality of second guide rods and the plurality of second guide holes are in one-to-one correspondence.

In some embodiments, the fixing seat and the base are located on the same side of the first body in the third direction.

In some embodiments, the first plate is located between the second plate and the top plate in the first direction, the first telescopic member includes a plurality of third guide rods, the plurality of third guide rods are arranged at intervals in the second direction, the first plate has a plurality of third guide holes, portions of the third guide rods are inserted into the third guide holes, and the third guide rods and the third guide holes correspond to each other one by one.

In some embodiments, the second retractor comprises: the second body penetrates through the second plate and is connected with the base; the second telescopic piece is movable relative to the second body along the first direction and is connected with the first plate; and the third telescopic piece is movable relative to the second telescopic piece along the first direction, and is connected with the movable seat.

In some embodiments, the second telescoping member is nested on the first body and the third telescoping member is nested on the second telescoping member.

In some embodiments, the anchor and protection drilling machine further comprises a pressure valve, the pressure valve is arranged in the first plate, the second expansion piece is an oil cylinder, the pressure valve is provided with an inlet and an outlet, one end of the second expansion piece, which is connected with the first plate, is provided with an oil discharge head, the oil discharge head is provided with an oil discharge hole, the oil discharge hole is communicated with the inlet, the first plate is provided with a plurality of lubricating holes, the lubricating holes are communicated with the outlet, a part of the lubricating holes are adjacent to the second expansion piece, and the rest of the lubricating holes are respectively adjacent to the first guide rods and the second guide rods.

Drawings

Fig. 1 is a front side perspective view of an anchor and protection drilling machine according to an embodiment of the invention.

Fig. 2 is a schematic rear side three-dimensional structure of the anchor and protection drilling machine according to the embodiment of the invention.

Fig. 3 is a perspective view of the first retractor.

Fig. 4 is a perspective view of the carriage.

Fig. 5 is a perspective view of the second retractor.

Fig. 6 is a schematic cross-sectional view of the second retractor.

Fig. 7 is a schematic cross-sectional view of the second body.

Figure 8 is a cross-sectional schematic view of the second telescoping member.

Figure 9 is a cross-sectional schematic view of the third telescoping member.

Fig. 10 is a partial enlarged view at a in fig. 6.

Fig. 11 is a partial enlarged view at B in fig. 6.

Fig. 12 is a partial enlarged view at C in fig. 6.

Fig. 13 is a schematic view of the structure of the first plate.

Reference numerals:

an anchor and protection drilling machine 1000;

a top plate 100; a positioning hole 110;

drill box 200

A carriage 300; a first plate 310; a first connection hole 311; a third guide hole 312; second connection holes 313; a third connection hole 314; a first lubrication hole 315; a second lubrication hole 316; a third lubrication hole 317; a second plate 320; the first through hole 321; a first guide bar 330; the second guide lever 340;

a first retractor 400; a first body 410; a base 411; a fixing base 412; the second guide hole 4121; a first telescoping member 420; a third guide bar 421;

a second retractor 500; a first oil inlet chamber 510; a first oil return chamber 520; a second oil inlet chamber 530; a second oil return chamber 540;

a second body 600; a first cylinder 610; a second cylinder 620; a second through hole 621; a first lumen 630; a first ring cavity 640; a valve body 650; an oil inlet 651; an oil outlet 652; an oil inlet pipe 653; an oil outlet pipe 654; an oil block 660; an oil inlet passage 661; a first piston sleeve 670;

a second telescoping member 700; a second lumen 701; a second annular cavity 702; a third ring cavity 703; a third cylinder 710; a first segment 711; a second segment 712; a third through hole 7121; a third section 713; a fourth cylinder 720; a fourth through hole 721; a fifth cylinder 730; a fifth through hole 731; a second piston sleeve 740; a communication valve 750; a first channel 751; a second channel 752; a third channel 753; a fourth channel 754; an oil drain head 760; an oil drain hole 761; a first gland 770;

a third telescoping member 800; a sixth cylinder 810; a third lumen 811; a transition sleeve 812; a second sealing boot 820; a third gland 830;

a movable base 900; a first guide hole 910.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1 to 13, an anchor and protection drilling machine 1000 according to an embodiment of the present invention includes a top plate 100, a first retractor 400, a carriage 300, a drill box 200, a second retractor 500, a movable stand 900, and a fixed stand 412.

As shown in fig. 1-3, first retractor 400 includes a first body 410 and a first retractor 420, and first retractor 420 is movably disposed on first body 410 in a first direction. One end of the first extensible member 420 in a length direction (e.g., an upper end of the first extensible member 420 in fig. 1) is connected to the top plate 100, and the length direction of the first extensible member 420 is parallel to a first direction (e.g., a vertical direction in fig. 1). Specifically, the first expansion piece 400 is an oil cylinder, the first body 410 is a cylinder body of the oil cylinder, and the first expansion piece 420 is an expansion rod of the oil cylinder.

The carriage 300 has a telescopic chamber, and the carriage 300 is movably provided on the first body 410 in a first direction. The drill box 200 is movably provided on the carriage 300 in a first direction. That is, the carriage 300 and the first body 410 are connected by a guide assembly, and the drill box 200 and the carriage 300 are also connected by a guide assembly.

At least a portion of second retractor 500 is located within the retraction cavity. The second jack 500 is connected to the first body 410, the second jack 500 is further connected to the carriage 300 for driving the carriage 300 to move in the first direction with respect to the first body 410, and the second jack 500 is further connected to the drill box 200 for driving the drill box 200 to move in the first direction with respect to the carriage 300. That is, the second retractor 500 includes a fixed portion and a driving portion, the fixed portion of the second retractor 500 is mounted on the first body 410, and the driving portion of the second retractor 500 is located in a retracting cavity of the carriage 300, and the driving portion of the second retractor 500 drives the carriage 300 and the drill box 200 to move up and down, respectively.

According to the anchor and protection drilling machine 1000 of the embodiment of the invention, the first body 410 is not only an integral part of the first expansion piece 400, but also can provide support for the second expansion piece 500, so that the support is saved, and the whole size of the anchor and protection drilling machine 1000 is reduced. The second telescopic device 500 drives the sliding frame 300 and the drill box 200 to move up and down in the telescopic cavity of the sliding frame 300, no additional space is occupied, and the overall size of the anchor and protection drilling machine 1000 is further reduced.

Therefore, the anchor and protection drilling machine 1000 according to the embodiment of the invention has the advantages of simple structure, compact structure, small occupied space, convenience in maintenance and easiness in disassembly and assembly.

In some embodiments, as shown in fig. 1 to 3, one end of the first body 410 in the length direction (e.g., the lower end of the first body 410 in fig. 1) is provided with a base 411. The top plate 100 and the base 411 are disposed opposite to each other in a length direction of the first body 410, and the carriage 300 and the drill box 200 are located between the top plate 100 and the base 411 in the length direction of the first body 410, the length direction of the first body 410 being parallel to the first direction. It will be appreciated that the drill box 200 and the top plate 100 are vertically opposed, and the drill box 200 can carry the anchor rods through the pilot holes 110 of the top plate 100.

In some embodiments, as shown in fig. 1-4, the carriage 300 includes a first plate 310, a second plate 320, a plurality of first guide bars 330, and a plurality of second guide bars 340. The first plate 310 and the second plate 320 are oppositely arranged in a first direction, the plurality of first guide bars 330 are arranged at intervals in a second direction (left-right direction in fig. 1), the plurality of second guide bars 340 are arranged at intervals in the second direction (left-right), and the first guide bars 330 and the second guide bars 340 are spaced apart in a third direction (front-rear direction in fig. 1). The bellows chamber is formed between the first plate 310 and the second plate 320, the second direction is perpendicular to the first direction, and the third direction is perpendicular to the first direction and the second direction. The second plate 320 has a first through hole 321.

As shown in fig. 1 and 3, the drill box 200 is disposed on the movable base 900, the movable base 900 has a plurality of first guide holes 910, a portion of the first guide rod 330 is inserted into the first guide holes 910, and the plurality of first guide rods 330 and the plurality of first guide holes 910 correspond to each other one by one. The fixing base 412 is disposed on the first body 410, the fixing base 412 has a plurality of second guide holes 4121, a portion of the second guide rod 340 is disposed through the second guide holes 4121, and the plurality of second guide rods 340 correspond to the plurality of second guide holes 4121 one to one. The fixing base 412 and the base 411 are spaced apart in the third direction and are located on the same side of the first body 410. Specifically, the first guide bar 330 and the second guide bar 340 are both generally circular in cross-section. That is, the carriage 300 and the first body 410 are connected by a cylindrical guide assembly, and the drill box 200 and the carriage 300 are also connected by a cylindrical guide assembly, which is simple to manufacture. Therefore, the drill box 200 can move together with the carriage 300 while driving the carriage 300 up and down by the second jack 500.

Therefore, the anchor and protection drilling machine 1000 according to the embodiment of the invention has the advantages of simple structure, compact structure, small occupied space, convenient maintenance and easy disassembly and assembly.

In some embodiments, as described in fig. 1-4, the first panel 310 is positioned between the second panel 320 and the top panel 100 in the first direction. That is, the first plate 310 is located at the upper end of the carriage 300, and the second plate 320 is located at the lower end of the carriage 300. The first expansion member 420 includes a plurality of third guide bars 421, and the plurality of third guide bars 421 are arranged at intervals in the second direction. The first plate 310 has a plurality of third guide holes 312, a portion of the third guide bar 421 is inserted into the third guide holes 312, and the third guide bars 421 and the third guide holes 312 correspond to each other one by one. Therefore, the first expansion piece 420 can drive the top plate 100 to move up and down, and can also play a role in guiding the first plate 310, thereby improving the stability of the carriage 300.

In some embodiments, as described in fig. 1, 4, and 5, second retractor 500 includes a second body 600, a second retractor 700, and a third retractor 800. The second body 600 is connected to the base 411 through the first through hole 321 of the second plate 320. The second telescopic member 700 is movable in a first direction with respect to the second body 600, and the second telescopic member 700 is coupled to the first plate 310. Third telescoping member 800 is movable in a first direction relative to second telescoping member 700, and third telescoping member 800 is coupled to movable base 900.

As shown in fig. 5, the second expansion device 500 is an oil cylinder, the second expansion member 700 is sleeved on the first body 410, and the third expansion member 800 is sleeved on the second expansion member 700.

Therefore, the second telescopic member 700 drives the carriage 300 to move up and down through the first plate 310, and the third telescopic member 800 drives the drill box 200 to move up and down through the moving base 900.

In some embodiments, as shown in fig. 5 and 13, the anchor drilling rig 1000 further includes a pressure valve (not shown). A pressure valve is provided in the first plate 310, the pressure valve having an inlet and an outlet. One end of second extensible member 700 that links to each other with first board 310 has oil drainage head 760, and oil drainage head 760 has draining hole 761, and draining hole 761 communicates with the import. The first plate 310 has a plurality of lubrication holes each communicating with the outlet, a portion of the plurality of lubrication holes being adjacent to the second extensible member 700, and the remaining portion of the plurality of lubrication holes being adjacent to the plurality of first guide bars 330 and the plurality of second guide bars 340, respectively.

As shown in fig. 13, the first plate 310 further has a first coupling hole 311, a second coupling hole 313, a third coupling hole 314, and a plurality of lubrication holes. The plurality of lubrication holes are a first lubrication hole 315, a second lubrication hole 316, and a third lubrication hole 317, respectively. The first, second and third lubrication holes 315, 316, 317 are all in communication with the outlet of the pressure valve.

As shown in fig. 1, 4 and 13, the drain head 760 extends into the first connection hole 311, and the drain hole 761 is threadedly connected to an inlet of the pressure valve. The upper end of the first guide bar 330 extends into the second connection hole 313, and the first guide bar 330 is welded to the first plate 310. The upper end of the second guide bar 340 extends into the third connection hole 314, and the second guide bar 340 is welded to the first plate 310. The first lubrication hole 315 is adjacent to the first connection hole 311, and thus, the hydraulic oil flowing out from the first lubrication hole 315 can lubricate the second extensible member 700. The second lubrication hole 316 is adjacent to the second connection hole 313, and thus, the hydraulic oil flowing out of the second lubrication hole 316 can lubricate the first guide bar. The third lubrication hole 317 is adjacent to the third connection hole 314, and thus, the hydraulic oil flowing out of the third lubrication hole 317 can lubricate the second guide bar.

It can be understood that the oil path of the drill box 200 of the anchor and protection drilling machine 1000 and the oil paths of the first expansion piece 400 and the second expansion piece 500 share a hydraulic system, when the drill box 200 of the anchor drilling machine drills an anchor rod into a roadway wall, the hydraulic system generates instantaneous high pressure, when a preset pressure value of the pressure valve is reached, an inlet of the pressure valve is communicated with the oil drainage hole 761, and hydraulic oil can reach each lubricating hole through an outlet of the pressure valve. Therefore, the first plate 310, the pressure valve and the drain head 760 can lubricate the first guide rod 330, the second guide rod 340 and the second telescopic member 700.

As shown in fig. 6 and 7, the second body 600 includes a first cylinder 610, a second cylinder 620, a valve body 650, an oil dam 660, and a piston sleeve.

As shown in fig. 7, the first cylinder 610 has a first inner chamber 630, and a first annular chamber 640 is formed between an outer circumferential surface of the first cylinder 610 and an inner circumferential surface of the second cylinder 620. The second cylinder 620 has a second bore 621 in the wall that communicates with the first annular chamber 640.

As shown in fig. 1, 5 and 7, the valve body 650 is positioned at a lower end of the second body 600, and the lower end of the valve body 650 is rotatably coupled to the base plate.

As shown in fig. 7, the valve body 650 has an oil inlet 651, an oil outlet 652, an oil inlet pipe 653, and an oil outlet pipe 654. The oil outlet pipe 654 is sleeved on the oil inlet pipe 653, and an annular cavity is formed between the inner circumferential surface of the oil outlet pipe 654 and the outer circumferential surface of the oil inlet pipe 653. The oil inlet 651 is communicated with the cavity of the oil inlet pipe 653, and the oil outlet 652 is communicated with the annular cavity. And, the oil inlet pipe 653 blocks the first inner cavity 630 and the first annular cavity 640 at the lower end of the second body 600.

As shown in fig. 7, the oil dam 660 is located at the upper end of the second body 600. The oil block 660 has an oil inlet passage 661, and the oil inlet passage 661 is communicated with the first inner cavity 630. The oil block 660 blocks the first annular chamber 640 at the upper end of the second body 600. The first piston sleeve 670 is fitted over a portion of the oil dam 660. The other part of the oil plug 660 protrudes upward.

As shown in fig. 7, the lower end of the first piston sleeve 670 is fixedly coupled to the upper end of the second cylinder 620, the inner circumferential surface of the first piston sleeve 670 is coupled to a portion of the outer circumferential surface of the oil dam 660, and a seal ring is provided between the inner circumferential surface of the first piston sleeve 670 and the portion of the outer circumferential surface of the oil dam 660. The outer circumferential surface of the first piston sleeve 670 is also provided with a sealing ring. The first piston sleeve 670 is adjacent the upper end of the second body 600.

As shown in fig. 6 and 8, the second telescopic member 700 includes a third cylinder 710, a fourth cylinder 720, a fifth cylinder 730, a second piston sleeve 740, and a communication valve 750.

As shown in fig. 8, the third cylinder 710 has a second bore 701. The third cylinder 710 includes a first section 711, a second section 712, and a third section 713 that are integrally connected. The third section 713 is located between the first section 711 and the second section 712 in the up-down direction. That is, the first segment 711 is located above the third segment 713, and the second segment 712 is located below the third segment 713.

As shown in fig. 8, a second annular chamber 702 is formed between the inner peripheral surface of the fourth cylinder 720 and the outer peripheral surface of the first section 711 of the third cylinder 710. A third annular chamber 703 is formed between a part of the inner peripheral surface of the fifth cylinder 730 and a part of the outer peripheral surface of the second section 712 of the third cylinder 710, and another part of the outer peripheral surface of the fifth cylinder 730 is connected to another part of the outer peripheral surface of the second section 712 of the third cylinder 710 so as to close the third annular chamber 703.

It will be appreciated that a portion of the inner circumferential surface of the fifth cylinder 730 is located above another portion of the inner circumferential surface, and a portion of the outer circumferential surface of the second section 712 of the third cylinder 710 is located above another portion of the outer circumferential surface of the second section 712 of the third cylinder 710.

As shown in fig. 8, the second piston sleeve 740 is located between the fourth cylinder 720 and the fifth cylinder 730 in the up-down direction. That is, the fourth cylinder 720 is located above the second piston sleeve 740, and the fifth cylinder 730 is located below the second piston sleeve 740. The upper end of the second piston sleeve 740 is connected to the lower end of the fourth cylinder 720, and the lower end of the second piston sleeve 740 is connected to the upper end of the fifth cylinder 730. The inner circumferential surface of the second piston sleeve 740 is connected to the outer circumferential surface of the third section 713 of the third cylinder 710. That is, the second piston sleeve 740 blocks the lower end of the second annular chamber 702 and the upper end of the third annular chamber 703, and the second piston sleeve 740 blocks the second annular chamber 702 and the third annular chamber 703.

As shown in FIG. 8, the second section 712 of the third cylinder 710 has a third through hole 7121, and the third through hole 7121 communicates the second bore 701 with the third annular chamber 703. The fourth cylinder 720 has a fourth through hole 721 communicating with the second annular chamber 702. The fifth cylinder 730 has a fifth through bore 731 that communicates with the third annular chamber 703.

As shown in fig. 8, a communication valve 750 is located at an upper end of the second expansion member 700, and the communication valve 750 is connected to both an upper end of the third cylinder 710 and an upper end of the first section 711 of the fourth cylinder 720. Also, the communication valve 750 blocks the upper end of the second inner chamber 701 and the upper end of the second annular chamber 702.

As shown in fig. 8, a first sealing sleeve 770 is disposed at a lower end of the second telescopic member 700, and a portion of an outer circumferential surface of the first sealing sleeve 770 is connected to a portion of an inner circumferential surface of the second section 712 of the third cylinder 710.

As shown in fig. 8, the communication valve 750 has a first passage 751, a second passage 752, a third passage 753, and a fourth passage 754. The first channel 751 and the third channel 753 communicate, the second channel 752 and the third channel 753 communicate, and the third channel 753 and the fourth channel 754 communicate, so that the first channel 751, the second channel 752, the third channel 753, and the fourth channel 754 communicate with each other.

As shown in fig. 8, the communication valve 750 includes an integrally connected drain head 760, and the drain head 760 is located above the communication valve 750. The drain head 760 has a drain hole 761 at an upper end, and the drain hole 761 communicates with the fourth passage 754.

As shown in fig. 9, the third telescoping member 800 includes a sixth cylinder 810, a second sealing boot 820, and a third sealing boot 830.

As shown in fig. 9, the sixth cylinder 810 has a third inner chamber 811. The upper end of the sixth cylinder 810 is connected with a transition sleeve 812. A second boot seal 820 is also located at the upper end of the third telescoping member 800. A portion of the second sealing sleeve 820 extends into the third internal cavity 811 and the outer circumferential surface of the portion of the second sealing sleeve 820 is connected to a portion of the inner circumferential surface of the sixth cylinder 810, i.e., the second seal is also connected to the transition sleeve 812. That is, the second sealing boot 820 is connected to the sixth sleeve through the transition boot 812.

As shown in fig. 9, a third sealing boot 830 is located at a lower end of the third telescopic member 800, a portion of the third sealing boot 830 protrudes into the third inner chamber 811, and an outer circumferential surface of the portion of the third sealing boot 830 is connected with a portion of an inner circumferential surface of the sixth cylinder 810.

As shown in fig. 10 to 12, a first oil inlet chamber 510 is formed between the outer peripheral surface of the other portion of the oil dam 660, the lower end surface of a portion of the communication valve 750, the inner peripheral surface of a portion of the third cylinder 710, and the upper end surface of the first piston sleeve 670. A first oil return chamber 520 is formed between the lower end surface of the first piston sleeve 670, a part of the inner circumferential surface of the third cylinder 710, the outer circumferential surface of the second cylinder 620, and the upper end surface of the first seal sleeve 770. The second through hole 621 communicates the first oil returning chamber 520 and the first annular chamber 640.

As shown in fig. 10, the first passage 751 communicates with the first inner chamber 630 through an oil inlet passage 661, the second passage 752 communicates with the first oil inlet chamber 510, the third passage 753 communicates with the second annular chamber 702, and the fourth passage 754 communicates with the oil discharge hole 761.

As shown in fig. 11 and 12, a second oil inlet chamber 530 is formed between a part of the inner circumferential surface of the sixth cylinder 810, the lower end surface of the second seal sleeve 820, a part of the inner circumferential surface of the fourth cylinder 720, and the upper end surface of the second piston sleeve 740. A second oil return chamber 540 is formed between a part of the inner circumferential surface of the sixth cylinder 810, the upper end surface of the second seal sleeve 820, a part of the inner circumferential surface of the fifth cylinder 730, and the lower end surface of the second piston sleeve 740.

As shown in FIG. 11, the fourth through hole 721 communicates the second oil inlet chamber 530 with the second annular chamber 702, and the fifth through hole 731 communicates the second oil return chamber 540 with the third annular chamber 703.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An anchor and support drilling machine, comprising:

a top plate;

the first expansion piece comprises a first body and a first expansion piece, the first expansion piece is movably arranged on the first body along a first direction, one end of the first expansion piece in the length direction is connected with the top plate, and the length direction of the first expansion piece is parallel to the first direction;

the sliding frame is provided with a telescopic cavity, the sliding frame is movably arranged on the first body along the first direction, and the sliding frame comprises a first plate, a second plate, a plurality of first guide rods and a plurality of second guide rods;

a drill box movably arranged on the carriage along the first direction; and

a second retractor, at least a portion of which is located within the retraction cavity, the second retractor being coupled to the first body, the second retractor further being coupled to the carriage to drive the carriage to move relative to the first body in the first direction, the second retractor further being coupled to the drill box to drive the drill box to move relative to the carriage in the first direction;

the second retractor includes:

the second body penetrates through the second plate and is connected with the base; the second body comprises a first cylinder, a second cylinder, a valve body, an oil plug and a piston sleeve, the first cylinder is provided with a first inner cavity, a first annular cavity is formed between the outer circumferential surface of the first cylinder and the inner circumferential surface of the second cylinder, a second through hole communicated with the first annular cavity is formed in the wall of the second cylinder, the valve body is positioned at the lower end of the second body, the lower end of the valve body is rotatably connected with the bottom plate, the valve body is provided with an oil inlet, an oil outlet, an oil inlet pipe and an oil outlet pipe, the oil outlet pipe is sleeved on the oil inlet pipe, an annular cavity is formed between the inner circumferential surface of the oil outlet pipe and the outer circumferential surface of the oil inlet pipe, the oil inlet is communicated with the pipe cavity of the oil inlet pipe, the oil outlet is communicated with the annular cavity, and the oil inlet pipe separates the first inner cavity from the first annular cavity at the lower end of the second body, the oil plug is positioned at the upper end of the second body, the oil plug is provided with an oil inlet channel, the oil inlet channel is communicated with the first inner cavity, the oil plug is used for plugging the first annular cavity at the upper end of the second body, a first piston sleeve is sleeved on one part of the oil plug, the other part of the oil plug extends upwards, the lower end of the first piston sleeve is fixedly connected with the upper end of the second cylinder barrel, the inner peripheral surface of the first piston sleeve is connected with the outer peripheral surface of the part of the oil plug, a sealing ring is arranged between the inner peripheral surface of the first piston sleeve and the outer peripheral surface of the part of the oil plug, the outer peripheral surface of the first piston sleeve is also provided with the sealing ring, and the first piston sleeve is close to the upper end of the second body;

a second expansion piece which is movable along the first direction relative to the second body and is connected with the first plate, wherein the second expansion piece comprises a third cylinder, a fourth cylinder, a fifth cylinder, a second piston sleeve and a communication valve, the third cylinder is provided with a second inner cavity and comprises a first section, a second section and a third section which are integrally connected, the third section is positioned between the first section and the second section in the vertical direction, a second annular cavity is formed between the inner peripheral surface of the fourth cylinder and the outer peripheral surface of the first section of the third cylinder, a third annular cavity is formed between a part of the inner peripheral surface of the fifth cylinder and a part of the outer peripheral surface of the second section of the third cylinder, and the other part of the outer peripheral surface of the fifth cylinder is connected with the other part of the outer peripheral surface of the second section of the third cylinder so as to seal the third annular cavity, a second piston sleeve is arranged between the fourth cylinder and the fifth cylinder in the vertical direction, the upper end of the second piston sleeve is connected with the lower end of the fourth cylinder, the lower end of the second piston sleeve is connected with the upper end of the fifth cylinder, the inner circumferential surface of the second piston sleeve is connected with the outer circumferential surface of the third section of the third cylinder, the second section of the third cylinder is provided with a third through hole which is communicated with the second inner cavity and the third annular cavity, the fourth cylinder is provided with a fourth through hole which is communicated with the second annular cavity, the fifth cylinder is provided with a fifth through hole which is communicated with the third annular cavity, the communicating valve is arranged at the upper end of the second telescopic part, the communicating valve is connected with the upper end of the third cylinder and the upper end of the first section of the fourth cylinder, and the communicating valve seals the upper end of the second inner cavity and the upper end of the second annular cavity, the first sealing sleeve is positioned at the lower end of the second telescopic piece, part of the outer peripheral surface of the first sealing sleeve is connected with part of the inner peripheral surface of the second section of the third cylinder barrel, the communication valve is provided with a first channel, a second channel, a third channel and a fourth channel, the first channel is communicated with the third channel, the second channel is communicated with the third channel, and the third channel is communicated with the fourth channel;

the second telescopic device is an oil cylinder, the pressure valve is arranged in the first plate and is provided with an inlet and an outlet, one end of the second telescopic piece, which is connected with the first plate, is provided with an oil discharge head, the oil discharge head is provided with an oil discharge hole, the oil discharge hole is communicated with the inlet, the first plate is provided with a plurality of lubricating holes, the lubricating holes are communicated with the outlet, one part of the lubricating holes are adjacent to the second telescopic piece, and the rest parts of the lubricating holes are respectively adjacent to the first guide rods and the second guide rods;

the communicating valve comprises the oil drainage head which is integrally connected, the oil drainage head is positioned above the communicating valve, the oil drainage head is provided with the oil drainage hole positioned at the upper end, and the oil drainage hole is communicated with the fourth channel;

when the drilling box drills an anchor rod into the wall of the roadway, a hydraulic system can generate instantaneous high pressure, when the preset pressure value of the pressure valve is reached, the inlet of the pressure valve is communicated with the oil drainage hole, and hydraulic oil reaches each lubricating hole through the outlet of the pressure valve.

2. The anchor and support drill as defined in claim 1, wherein a lengthwise end of the first body is provided with a pedestal, the top plate and the pedestal are disposed opposite to each other in a lengthwise direction of the first body, the carriage and the drill box are located between the top plate and the pedestal in the lengthwise direction of the first body, and the lengthwise direction of the first body is parallel to the first direction.

3. The anchor and drilling machine as claimed in claim 2, wherein the first plate and the second plate are oppositely disposed in the first direction, a plurality of first guide bars are spaced apart in the second direction, a plurality of second guide bars are spaced apart in the second direction, the first guide bars and the second guide bars are spaced apart in a third direction, the telescoping cavity is formed between the first plate and the second plate, the second direction is perpendicular to the first direction, and the third direction is perpendicular to the first direction and the second direction.

4. The anchor and drilling rig as recited in claim 3, further comprising a traveling block, wherein the drill box is disposed on the traveling block, the traveling block has a plurality of first guide holes, portions of the first guide rods are disposed through the first guide holes, and the plurality of first guide rods and the plurality of first guide holes correspond one to one.

5. The anchor and drilling machine as claimed in claim 3, further comprising a fixing seat, wherein the fixing seat is arranged on the first body, the fixing seat is provided with a plurality of second guide holes, a part of the second guide rod penetrates through the second guide holes, and the plurality of second guide rods and the plurality of second guide holes correspond to one another.

6. The anchor and drilling rig as claimed in claim 5, wherein the anchor block and the base are on the same side of the first body in the third direction.

7. The anchor and drilling machine as claimed in claim 3, wherein the first plate is located between the second plate and the top plate in the first direction, the first telescopic member comprises a plurality of third guide rods, the plurality of third guide rods are arranged at intervals in the second direction, the first plate is provided with a plurality of third guide holes, portions of the third guide rods are arranged in the third guide holes in a penetrating manner, and the third guide rods and the third guide holes correspond to one another.

8. The anchor and drilling rig as claimed in claim 4, wherein the second jack comprises:

and the third telescopic piece is movable along the first direction relative to the second telescopic piece, and is connected with the movable seat.

9. The anchor and drill rig as defined in claim 8 wherein the second telescoping member is telescoped over the first body and the third telescoping member is telescoped over the second telescoping member.