A crawler hydraulic drilling rig for coal mines

Abstract

The present invention relates to a crawler hydraulic drilling machine for coal mines, comprising a crawler vehicle, a jacking device, a supporting device, and a drilling device; the crawler vehicle is used to contact the bottom surface of the tunnel; the jacking device and the surface of the crawler vehicle are rotatably connected by a first slewing support assembly, and the jacking device is perpendicular to the crawler vehicle; the supporting device comprises a hydraulic support rod and a first hydraulic push rod, one end of the hydraulic support rod is hinged to the jacking device, and the other end of the hydraulic support rod is rotatably connected to the drilling device through a second slewing support assembly; one end of the first hydraulic push rod is hinged to the jacking device, and the other end of the first hydraulic push rod is hinged to the hydraulic support rod, and the first hydraulic push rod is used to adjust the angle of the hydraulic support rod relative to the jacking device; the drilling device is used to drill holes in the drilling position. The present invention can adjust the height, horizontal angle, and vertical angle, and is more convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of drilling equipment, in particular to a crawler hydraulic drilling rig for coal mines. Background Art

[0002] The gas content in coal mines is relatively high. In order to ensure safety, it is necessary to drill gas discharge holes in coal mines to discharge the gas. At present, there are many types of underground drilling machines in coal mines, including manual and semi-automatic ones. However, manual and semi-automatic coal mine drilling machines require the coordinated operation of multiple people. In addition, the underground space of coal mines is complex, the drilling angle range is wide, the manual adjustment of the drilling angle is labor-intensive, and the drilling efficiency is low. Due to the narrow space of coal mine tunnels, the angle adjustment mechanism of the existing crawler-type automatic drilling tool is bulky and cannot adapt to the narrow underground drilling of coal mines. Therefore, designing a drilling machine with multiple adjustable angles suitable for underground drilling is an urgent problem to be solved. Summary of the invention

[0003] The purpose of the present invention is to provide a crawler hydraulic drill for coal mines, so that the drill bit angle can be adjusted to multiple angles without moving the whole drill bit underground.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A crawler hydraulic drilling rig for coal mines, comprising a crawler vehicle, a tightening device, a supporting device, and a drilling device; the tightening device is rotatably connected to the surface of the crawler vehicle by a first rotary supporting assembly, and the tightening device is perpendicular to the crawler vehicle; the supporting device comprises a hydraulic support rod and a first hydraulic push rod, one end of the hydraulic support rod is hinged to the tightening device, and the other end of the hydraulic support rod is rotatably connected to the drilling device through a second rotary supporting assembly; one end of the first hydraulic push rod is hinged to the tightening device, and the other end of the first hydraulic push rod is hinged to the hydraulic support rod, and the first hydraulic push rod is used to adjust the angle of the hydraulic support rod relative to the tightening device; the drilling device is used to drill holes at the drilling site.

[0006] Further, the drilling device includes a sliding mechanism and a drilling mechanism; the sliding mechanism includes a guide rail and a rotary slider, one end of the guide rail is fixedly connected with a positioning cylinder, and the rotary slider is slidably connected to the guide rail; the drilling mechanism adjusts the position of the rotary slider on the guide rail through a transmission chain and a transmission rod, and the drilling mechanism also includes a rotary assembly and a drill push rod, the rotary assembly is fixedly connected to the rotary slider, one end of the drill push rod is fixedly connected to the end of the guide rail away from the positioning cylinder, and the other end of the drill push rod is transmission-connected to the transmission rod. The rotary slider is slidably connected on the guide rail, and the drilling mechanism adjusts the position of the rotary slider on the guide rail through a transmission chain and a transmission rod. The design of the transmission chain makes the running distance of the drilling mechanism twice the running distance of the transmission rod. The smaller running distance makes the drilling effect better, saves space, and is conducive to working in mines. The presence of the positioning cylinder makes the drilling position more accurate, avoiding the drill rod from being suspended too long and shaking too much during drilling.

[0007] Furthermore, the guide rail is a square shell, and a long strip-shaped rotating hole is opened on the guide rail along the length direction of the guide rail, and long strip-shaped pulley holes are opened on two planes adjacent to the plane where the rotating hole is located along the length direction of the guide rail, and the side wall of the surface of the guide rail with the rotating hole extends outward to form a convex edge, and the rotating slider is slidably connected to the convex edge; the guide rail is provided with the transmission rod and the transmission chain, and the two ends of the transmission rod are connected to the sliding wheels, and the transmission chain is respectively connected to the sliding wheels, and the two ends of the transmission chain are fixed on the guide rail plane on the opposite side of the rotating hole, and the middle chain link of the transmission chain is fixedly connected to the rotating slider, and the pulley shaft of the sliding wheel is slidably connected to the pulley hole, and the end of the pulley shaft close to the positioning cylinder is connected to the drill push rod. The design of the transmission chain makes the running distance of the drilling mechanism twice the running distance of the transmission rod. The smaller running distance makes the drilling effect better and saves space, which is conducive to working in the mine.

[0008] Furthermore, the sliding mechanism further comprises an adjusting slider and an adjusting push rod, wherein the adjusting slider is slidably connected to a surface of the guide rail opposite to the surface on which the slewing hole is provided, the adjusting slider is fixedly connected to the second slewing support assembly, one end of the guide rail close to the positioning cylinder is hinged to one end of the adjusting push rod, and the other end of the adjusting push rod is fixedly connected to the adjusting slider

[0009] Furthermore, a rotary assembly is fixedly connected to the rotary slider, and the rotary assembly is connected to a drill bit, and the drill bit can pass through the positioning tube.

[0010] Furthermore, the hydraulic support rod is a telescopic structure, and one end of the hydraulic support rod is connected to the second slewing support assembly and is fixedly connected to an end cover, the second slewing support assembly includes a second slewing bearing and a second slewing drive, the end cover and the inner ring of the second slewing bearing are fixedly connected by bolts, the adjusting slider and the outer ring of the second slewing bearing are fixedly connected by bolts, and the slewing drive is used to provide power for the slewing bearing.

[0011] Furthermore, the tightening device includes a tightening shell, a tightening push rod, a fixed end cover and a tightening end cover; the tightening push rod is a telescopic structure, the top end of the tightening push rod is rotatably connected to the tightening end cover, the bottom end of the tightening push rod is fixedly connected to the fixed end cover, the tightening push rod outer sleeve is provided with the tightening shell, and the tightening shell is fixedly connected to the fixed end cover.

[0012] Furthermore, a fixing protrusion is fixedly connected to one end of the tightening end cover, and a sleeve is fixedly connected to the other end of the tightening end cover, and the sleeve is sleeved on the end of the tightening push rod away from the fixed end cover, and the sleeve is rotatably connected to the tightening push rod; an annular groove is provided on the tightening push rod near the top end of the tightening push rod along the circumferential direction, and two limiting holes are provided on the sleeve, and two ends of a U-shaped bolt pass through the two limiting holes respectively, and two parallel rods of the U-shaped bolt are respectively placed in the annular groove.

[0013] Furthermore, the first slewing support assembly includes a first slewing bearing and a first slewing drive, the support surface of the crawler vehicle and the inner ring of the first slewing bearing are fixedly connected; the fixed end cover and the outer ring of the first slewing bearing are fixedly connected; the first slewing drive is used to provide power for the first slewing bearing.

[0014] Furthermore, the crawler vehicle comprises two retractable support columns, the support columns press downwardly against the bottom surface, and the pressing push rod presses upwardly against the top surface, and the number of the support columns is two.

[0015] The beneficial effects of the present invention are as follows: the tightening device fixes the tracked vehicle to achieve drilling at different angles on the same horizontal plane; the height of the drilling device can be adjusted through the cooperation of the supporting device and the first hydraulic push rod to achieve drilling at different heights; the angle of the drilling device relative to the supporting device can be adjusted through the second rotary supporting device, and the drilling angle in the vertical direction can be adjusted; the combined use of several devices can achieve drilling at different angles at different positions, making the operation more convenient and quick; the equipment can drive the tracked chassis to move by itself through its own hydraulic control system, avoiding manual handling of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall front structure of a crawler hydraulic drill for coal mines;

[0017] Figure 2 It is a stereoscopic picture of the whole crawler hydraulic drilling rig for coal mines;

[0018] Figure 3 It is a schematic diagram of the front structure of the rotating part of a crawler hydraulic drill for coal mines;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of a jacking device of a crawler hydraulic drill used in coal mines;

[0020] Figure 5 It is a schematic diagram of the front structure of a drilling device of a crawler hydraulic drill for coal mines;

[0021] Figure 6 It is a schematic diagram of the rear structure of a drilling device of a crawler hydraulic drill for coal mines;

[0022] Figure 7 It is a stereoscopic diagram of a drilling device of a crawler hydraulic drill for coal mines.

[0023] The names corresponding to the marks in the figure are:

[0024] 1-tracked vehicle; 11-support column;

[0025] 2-tightening device; 21-tightening housing; 22-tightening push rod; 23-fixing end cover; 24-tightening end cover; 25-fixing protrusion; 26-sleeve; 27-U-bolt; 28-annular groove;

[0026] 3-support device; 31-hydraulic support rod; 32-first hydraulic push rod; 33-end cover;

[0027] 4-drilling device; 41-sliding mechanism; 411-guide rail; 412-rotating slider; 413-positioning cylinder; 414-rotating hole; 415-adjusting slider; 416-rotating assembly; 42-drilling mechanism; 421-transmission chain; 422-transmission rod; 423-sliding wheel; 424-drill push rod; 425-adjusting push rod;

[0028] 5-First reinstallation of the support assembly;

[0029] 6- Second slewing support assembly. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] Embodiments of the present invention:

[0032] See attached Figure 1 and 2A crawler hydraulic drilling rig for coal mines, comprising a crawler vehicle 1, a jacking device 2, a support device 3, and a drilling device 4; the crawler vehicle 1 is used to contact the bottom surface of the tunnel; the jacking device 2 is rotatably connected to the surface of the crawler vehicle 1 by a first rotary support assembly 5, the jacking device 2 is perpendicular to the crawler vehicle 1, and a support device 3 is arranged on the right side of the jacking device 1, and the support device 3 comprises a hydraulic support rod 31 and a first hydraulic push rod 32, one end of the hydraulic support rod 31 is hinged to the jacking device 2, and the other end of the hydraulic support rod 31 is rotatably connected to the drilling device 4 through a second rotary support assembly 6; one end of the first hydraulic push rod 32 is hinged to the jacking device 2, and the other end of the first hydraulic push rod 32 is hinged to the hydraulic support rod 31, and the first hydraulic push rod 32 is used to adjust the angle of the hydraulic support rod 31 relative to the jacking device 2; a drilling device 4 is arranged on the rear side of the support device 3, and the drilling device 4 is used to drill holes at the drilling site. The hydraulic support rod 31 is a multi-stage telescopic structure, and the first hydraulic push rod 32 adjusts the angle of the hydraulic support rod 31.

[0033] See attached Figure 1 and 6 The drilling device 4 includes a sliding mechanism 41 and a drilling mechanism 42; the sliding mechanism 41 includes a guide rail 411 and a rotary slider 412, and a positioning cylinder 413 is fixedly connected to the right end of the guide rail 411, which is equivalent to the function of a sight, and can improve the stability of the equipment during drilling, and avoid the drill rod from being suspended too long and shaking too much during drilling.

[0034] The rotary slider 412 is slidably connected to the guide rail 411; the drilling mechanism 42 adjusts the position of the rotary slider 412 on the guide rail 411 through the transmission chain 421 and the transmission rod 422. The drilling mechanism 42 also includes a rotary component 423 and a drill push rod 424. The rotary component 423 is fixedly connected to the rotary slider 412, one end of the drill push rod 424 is fixedly connected to the left end of the guide rail 411, and the other end of the drill push rod 424 is transmission-connected to the transmission rod 422.

[0035] See attached Figure 5 , 6 7. The guide rail 411 is a square shell. An elongated rotating hole 414 is provided on the guide rail 411 along the length direction of the guide rail. Elongated pulley holes are provided on the upper and lower surfaces of the guide rail 411. The side wall of the surface of the guide rail 411 with the rotating hole 414 extends outward to form a convex edge, and the rotary slider 412 is slidably connected to the convex edge; a transmission rod 421 and a transmission chain 422 are provided inside the guide rail 411, and sliding wheels 423 are connected to both ends of the transmission rod 421. The transmission chain 421 passes around the sliding wheels 423 respectively, and both ends of the transmission chain 421 are fixed on the plane in front of the inner side of the guide rail 411. The middle link of the transmission chain 421 is fixed to the rotary slider 412. A sliding shaft is provided in the middle of the sliding wheel. The pulley shaft of the sliding wheel is slidably connected to the pulley hole, and one end of the pulley shaft on the right is connected to the drill push rod 424.

[0036] See attached Figure 1 , 5 The sliding mechanism 41 also includes an adjusting slider 415 , which is slidably connected to the front of the guide rail 411 and fixedly connected to the second slewing support assembly 6 .

[0037] The right end of the guide rail 411 is hinged to one end of the adjusting push rod 425, and the other end of the adjusting push rod 425 is fixedly connected to the adjusting slider 415. The displacement of the guide rail 411 is adjusted by the telescopic adjustment of the adjusting push rod 425.

[0038] The rotary slider 412 is fixedly connected with a rotary assembly 416, and the rotary assembly 416 is connected with a drill bit, and the drill bit can pass through the positioning tube 413. The rotary assembly 416 rotates under the drive of the hydraulic motor to cut the coal rock mass to achieve the purpose of drilling.

[0039] See attached Figure 3 The right end of the hydraulic strut 31 is fixedly connected with an end cap 33, the second slewing support assembly 6 includes a second slewing bearing and a second slewing drive, the end cap 33 and the inner ring of the second slewing bearing are fixedly connected by bolts, the adjusting slider 415 is fixedly connected with the outer ring of the second slewing bearing by bolts, and the slewing drive is used to provide power for the slewing bearing. The angle of the guide rail 411 relative to the hydraulic strut 31 can be adjusted by the second slewing support assembly 6.

[0040] The tightening device 2 includes a tightening shell 21, a tightening push rod 22, a fixed end cover 23 and a tightening end cover 24; the tightening push rod 22 is a telescopic structure, the top end of the tightening push rod 22 is rotatably connected to the tightening end cover 24, the bottom end of the tightening push rod 22 is fixedly connected to the fixed end cover 23, the tightening push rod 22 is outer-mounted with a tightening shell 21, and the tightening shell 21 is fixedly connected to the fixed end cover 23.

[0041] See attached Figure 3 and 4 , one end of the top tightening end cover 24 is fixedly connected with a fixing protrusion 25, and the other end of the top tightening end cover 24 is fixedly connected with a sleeve 26, which is sleeved on the end of the top tightening push rod 22 away from the fixed end cover 23, and the sleeve 26 is rotatably connected with the top tightening push rod 22; an annular groove 28 is provided in the circumferential direction near the top of the top tightening push rod 22, and two limiting holes are provided on the sleeve 26, and the two ends of the U-shaped bolt 27 pass through the two limiting holes respectively, and the two parallel rods of the U-shaped bolt 27 are respectively placed in the annular groove 28. When the top tightening end cover 24 is fixed to the top surface of the tunnel, a ball hinge can be formed between the top tightening push rod 22 and the top tightening end cover 24 through the U-shaped bolt 27 and the annular groove 28, thereby realizing relative rotation.

[0042] The first slewing support assembly 5 includes a first slewing bearing and a first slewing drive. The support surface of the crawler vehicle 1 is fixedly connected to the inner ring of the first slewing bearing; the fixed end cover 23 is fixedly connected to the outer ring of the first slewing bearing; the first slewing drive is used to provide power for the first slewing bearing.

[0043] See attached Figure 2 and 3 The crawler vehicle 1 includes two retractable support columns 11, the support columns 11 are pressed downward against the bottom surface, and the pressing push rod 22 is pressed upward against the top surface, and the number of the support columns 11 is two. The device is fixed between the top surface and the bottom surface, and the pressing push rod 22 and the support column 11 are arranged in a triangle. The pressing push rod 22 and the support column 11 can also be arranged up and down, and only one support column 11 can be used.

[0044] Method of use of the present invention:

[0045] Before the crawler vehicle 1 reaches the side wall where a hole is to be drilled, the support column 11 is extended to prop up the crawler vehicle 1, the tightening push rod 22 is extended to fix the crawler vehicle 1, the first rotary drive is turned on to make the drilling mechanism 42 point to the specified position, and then the first rotary drive is turned off to prevent the drilling mechanism 42 from rotating in the circumferential direction; then the length of the first hydraulic push rod 32 is adjusted, thereby adjusting the length of the drilling device. After adjusting to the specified position, the length of the first hydraulic push rod 32 is fixed, and the angle of the drilling device 4 relative to the support device 3 is adjusted by the second rotary support assembly 6.

[0046] After adjusting to a suitable drilling position by the above method, adjust the adjustment push rod 425 to fix the guide rail 411 with one end of the positioning cylinder 413 to press against the side wall to be drilled. Then, install the drill bit on the rotating assembly 416, open the rotating assembly 416, and push the drill bit to drill a hole through the drill push rod 424.

[0047] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A crawler hydraulic drill for coal mines, characterized in that: It comprises a crawler vehicle, a tightening device, a supporting device, and a drilling device; the tightening device is rotatably connected to the surface of the crawler vehicle by a first slewing supporting assembly, and the tightening device is perpendicular to the crawler vehicle; the supporting device comprises a hydraulic support rod and a first hydraulic push rod, one end of the hydraulic support rod is hinged to the tightening device, and the other end of the hydraulic support rod is rotatably connected to the drilling device through a second slewing supporting assembly; one end of the first hydraulic push rod is hinged to the tightening device, and the other end of the first hydraulic push rod is hinged to the hydraulic support rod, and the first hydraulic push rod is used to adjust the angle of the hydraulic support rod relative to the tightening device; the drilling device is used to drill holes in the drilling position, and the drilling device comprises a sliding mechanism and a drilling mechanism; the The sliding mechanism comprises a guide rail and a rotary slider, one end of the guide rail is fixedly connected with a positioning cylinder, and the rotary slider is slidably connected to the guide rail; the drilling mechanism adjusts the position of the rotary slider on the guide rail through a transmission chain and a transmission rod, and the drilling mechanism also comprises a rotary assembly and a drill push rod, the rotary assembly is fixedly connected to the rotary slider, one end of the drill push rod is fixedly connected to an end of the guide rail away from the positioning cylinder, and the other end of the drill push rod is transmission-connected to the transmission rod; the guide rail is a square shell, and an elongated rotary hole is opened on the guide rail along the length direction of the guide rail, and elongated pulley holes are opened on two planes adjacent to the plane where the rotary hole is located along the length direction of the guide rail. The side wall of the surface of the guide rail with a rotating hole extends outward to form a convex edge, and the rotating slider is slidably connected to the convex edge; the guide rail is provided with the transmission rod and the transmission chain, and sliding wheels are connected at both ends of the transmission rod, and the transmission chain is respectively connected to the sliding wheels, and both ends of the transmission chain are fixed on the guide rail plane on the opposite side of the rotating hole, the middle chain link of the transmission chain is fixedly connected to the rotating slider, the pulley shaft of the sliding wheel is slidably connected to the pulley hole, and the end of the pulley shaft close to the positioning cylinder is connected to the drill push rod; the sliding mechanism also includes an adjusting slider and an adjusting push rod, and the adjusting slider is slidably connected to the surface opposite to the surface of the guide rail with the rotating hole. The adjusting slider is fixedly connected to the second slewing support assembly, one end of the guide rail close to the positioning cylinder is hinged to one end of the adjusting push rod, and the other end of the adjusting push rod is fixedly connected to the adjusting slider; the slewing assembly is connected to a drill bit, and the drill bit can pass through the positioning cylinder; the hydraulic support rod is a telescopic structure, and one end of the hydraulic support rod connected to the second slewing support assembly is fixedly connected to an end cover, the second slewing support assembly includes a second slewing bearing and a second slewing drive, the end cover and the inner ring of the second slewing bearing are fixedly connected by bolts, the adjusting slider and the outer ring of the second slewing bearing are fixedly connected by bolts, and the second slewing drive is used to provide power for the second slewing bearing.

2. A crawler hydraulic drill for coal mines according to claim 1, characterized in that: The tightening device includes a tightening shell, a tightening push rod, a fixed end cover and a tightening end cover; the tightening push rod is a telescopic structure, the top end of the tightening push rod is rotatably connected to the tightening end cover, the bottom end of the tightening push rod is fixedly connected to the fixed end cover, the tightening push rod outer sleeve is provided with the tightening shell, and the tightening shell is fixedly connected to the fixed end cover.

3. A crawler hydraulic drill for coal mines according to claim 2, characterized in that: One end of the tightening end cover is fixedly connected with a fixing protrusion, and the other end of the tightening end cover is fixedly connected with a sleeve, the sleeve is sleeved on the end of the tightening push rod away from the fixed end cover, and the sleeve is rotatably connected to the tightening push rod; an annular groove is provided on the tightening push rod near the top end of the tightening push rod along the circumferential direction, and two limiting holes are provided on the sleeve, and two ends of a U-shaped bolt pass through the two limiting holes respectively, and two parallel rods of the U-shaped bolt are respectively placed in the annular groove.

4. A crawler hydraulic drill for coal mines according to claim 2, characterized in that: The first slewing support assembly includes a first slewing bearing and a first slewing drive. The support surface of the crawler vehicle is fixedly connected to the inner ring of the first slewing bearing; the fixed end cover is fixedly connected to the outer ring of the first slewing bearing; and the first slewing drive is used to provide power for the first slewing bearing.

5. The crawler hydraulic drill for coal mine according to claim 2, characterized in that: The crawler vehicle comprises at least one retractable support column, wherein the support column presses the bottom surface downwardly, and the pressing push rod presses the top surface upwardly.

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