Novel underground explosive trolley

Abstract

The utility model relates to a novel underground explosive trolley. In order to overcome the defects in the prior art, the novel underground explosive pushing vehicle comprises a crawler and a pushing beam, a first rotary speed reducer is arranged on the crawler, a mounting plate capable of horizontally rotating is mounted on a rotary support of the first rotary speed reducer, a lifting unit is mounted on the mounting plate, and the lifting unit comprises a stand column and a telescopic oil cylinder. A cylinder body of the telescopic oil cylinder is arranged in the stand column, the lower end of a piston rod of the telescopic oil cylinder extends out of the cylinder body and is fixed to the installation plate, a pair of protruding lugs is arranged in the middle section of the pushing beam, a horizontal transverse shaft is arranged on the rear side of the top of the stand column, opposite hinge holes are formed in the protruding lugs, and the protruding lugs are hinged to the horizontal transverse shaft through the hinge holes. And an angle adjusting oil cylinder is hinged between the front convex part and the front end of the pushing beam. The elevation angle adjusting structure is simple, firm and convenient to adjust, the position of the clamping push rod can be adjusted, and the elevation angle adjusting structure is suitable for being used during underground explosive pushing operation.

Description

Technical Field

[0001] The utility model relates to a novel underground explosive pushing vehicle. Background Art

[0002] At present, the main measure taken by high-ground stress mines to prevent and control rock bursts and mine earthquakes is to carry out deep-hole blasting in advance on the thick and hard roof above the coal seam, reduce the suspended roof area of ​​the roof, and reduce the compressive strength of the roof. When carrying out deep-hole blasting construction, it is necessary to load explosives in the holes of the roof, and the loading amount of each hole is tens of kilograms or even hundreds of kilograms. Currently, manual loading is used, which occupies a large number of operators, has high labor intensity for employees, low construction efficiency, and poor safety.

[0003] The Chinese invention patent application with publication number CN118008452A published on May 10, 2024 discloses a crawler material pusher for mining, which relates to the technical field of mining pusher equipment, including a frame, crawler walking assemblies are arranged on both sides of the frame, a gas-driven hydraulic pump station is arranged on one side of the top of the frame, and a column rotator is arranged on the other side, a column is arranged on the top of the column rotator, a lifting frame is arranged on the column, a guide rail rotator is connected to one side of the lifting frame, a guide rail fixing seat is arranged on the guide rail rotator, a longitudinal oil cylinder is arranged on the guide rail fixing seat, a longitudinal slide is connected to the longitudinal oil cylinder, a guide rail is arranged on the longitudinal slide, the guide rail is driven by the guide rail propulsion oil cylinder, a push rod is arranged on the top of the guide rail, a transverse slide is arranged at the bottom of the column rotator, and the transverse slide is driven by the transverse oil cylinder. When in use, the tube explosive to be pushed is fixed on the top of the push rod, and then the propulsion motor drives the push rod through the push rod fixing seat to complete the explosive pushing.

[0004] The Chinese utility model patent with the authorization announcement number CN 220267766 U published on December 29, 2023 discloses a crawler-type underground explosive auxiliary pusher including a crawler vehicle, on which a horizontally arranged first rotary reducer is installed, and a mounting plate that can rotate horizontally is installed on the rotary support of the first rotary reducer. A vertically arranged riser is also provided on the crawler vehicle, and the riser is located at the center of the first rotary reducer and passes through the mounting plate upward, and an upper support cylinder is installed in the riser.

[0005] The technical solutions disclosed in the above two patent documents respectively use a guide rail rotator and a second rotary reducer to adjust the direction of the push guide rail or push beam. The guide rail rotator and the second rotary reducer are both complex circular rotating mechanisms. When they rotate, they rotate around a horizontal axis and are also fixed by the horizontal axis. In order to ensure sufficient strength, their structures are bulky, large in size, and high in cost. When the push guide rail or push beam moves, it only needs to move within the range of 0-90 degrees. The rotation angle range of the above two patents is too large, which is wasteful. The prior art lacks a new underground explosive pusher with a simple push guide rotation structure and convenient operation.

[0006] In addition, the above two patent documents do not disclose the specific structure of the push rod fixing seat. The prior art lacks a new underground explosive pusher with a simple structure, convenient operation and adjustable clamping push rod position. Summary of the invention

[0007] The technical problem to be solved by the utility model is how to overcome the above-mentioned defects of the prior art and provide a new underground explosive pushing vehicle with a simple rotary structure and convenient operation.

[0008] The technical problem to be further solved by the utility model is how to overcome the above-mentioned defects of the prior art and provide a novel underground explosive pushing vehicle which has a simple structure, is easy to operate and can adjust the position of the clamping push rod.

[0009] In order to solve the above technical problems, the novel underground explosive pusher includes a crawler and a push beam, the crawler is provided with a first rotary reducer, a mounting plate capable of horizontal rotation is installed on the rotary bearing of the first rotary reducer, a lifting unit is installed on the mounting plate, a clamping cylinder and a push motor are installed at the front and rear ends of the push beam respectively, a push slide that can move along the length direction is also installed on the push beam, a sprocket is installed in one end of the push beam close to the clamping cylinder, a chain is installed between the output shaft of the push motor and the sprocket, the chain is fixed on the push slide, and the push motor can drive the push slide when it is started Move closer to the clamping cylinder, it is characterized in that: the lifting unit includes a column and a telescopic cylinder, the cylinder body of the telescopic cylinder is arranged in the column, the lower end of the piston rod of the telescopic cylinder extends out of the cylinder body and is fixed on the mounting plate, a pair of lugs are provided in the middle section of the pushing beam, a horizontal transverse axis is provided on the rear side of the top of the column, relative hinge holes are opened on the lugs, and the lugs are hinged on the horizontal transverse axis through the hinge holes, a front convex part is provided on the front side of the root of the column, an angle adjusting cylinder is hinged between the front convex part and the front end of the pushing beam, and the angle adjusting cylinder can drive the elevation angle of the front part of the pushing beam to change within the range of 0 to 90 degrees when it is extended and retracted.

[0010] With this design, the angle adjustment cylinder, the column and the front section of the push beam form an adjustable tripod structure, which is simple in structure, strong, easy to adjust and low in cost. The elevation adjustment range of the front part of the push beam is between 0-90 degrees, and there is no waste.

[0011] As an optimization, a longitudinal guide rail is provided on the body between the two tracks of the crawler vehicle, a longitudinal slide is provided on the longitudinal guide rail, the first rotary reducer is arranged on the longitudinal slide, a longitudinal oil cylinder is provided between the body and the longitudinal slide, and the longitudinal oil cylinder can drive the longitudinal slide to move forward and backward on the longitudinal guide rail when it is extended and retracted. With such a design, the longitudinal slide and the lifting unit, push beam and other components thereon can be driven to move forward and backward along the longitudinal guide rail by the longitudinal oil cylinder, thereby expanding the distance that the new underground explosive pusher can push explosives to the front.

[0012] As an optimization, the push slide includes N clamping blocks distributed in an annular shape, and the push rod equipped with the underground tube explosive can be inserted into the above-mentioned clamping blocks and clamped by the above-mentioned clamping blocks. Each clamping block has a large end and a small end, and is in the shape of a wedge. The push slide also includes a gland, a cone sleeve, a spring pad and an unlocking rotary sleeve. The two ends of the cone sleeve are respectively connected to extension tubes. The extension tube at the small end of the cone sleeve is provided with an external thread, and the extension tube at the large end of the cone sleeve is provided with a flange. The gland is fixed to the flange by screws, and the cone sleeve N inclined platforms are evenly arranged on the inner wall, each inclined platform is respectively provided with a dovetail groove, and an inclined convex ridge is arranged on the outer side of the clamp block. The above-mentioned clamp block corresponds to the inclined platform one by one, and the inclined convex ridge of each clamp block is embedded in the dovetail groove of the corresponding inclined platform and can slide along the dovetail groove. A boss is also arranged on the top of each clamp block, and a spring pad is arranged in the extension tube of the large end of the cone sleeve, and the lower surface of the spring pad is pressed on the boss of the clamp block. The gland, spring pad and unlocking rotary sleeve body are all annular, and M annular distributions are evenly arranged on the spring pad. The gland is provided with through holes corresponding to the insertion holes one by one, and a nylon guide column is fixed in each insertion hole. The upper ends of the nylon guide columns extend into the corresponding through holes of the gland and can move in the through holes. A coil spring is sleeved on each nylon guide column, and the two ends of the coil spring are respectively against the gland and the spring pad. The unlocking rotary sleeve includes an inner tube, an outer tube and an annular base plate. The root of the inner tube and the root of the outer tube are respectively fixedly connected to one side of the annular base plate, and the axis center lines coincide with each other. The inner wall of the outer tube is provided with a The external thread of the extension tube at the small end of the cone sleeve matches the internal thread, and is screwed onto the extension tube at the small end of the cone sleeve through the internal thread. The lower ends of all clamps are pressed on the outer end of the inner tube. When the rotary sleeve is tightened and unlocked, the inner tube pushes each clamp to the large end of the cone sleeve. When the rotary sleeve is loosened and unlocked, each spiral spring rebounds and pushes each clamp to the small end of the cone sleeve through the spring pad, so as to release or clamp the underground tube explosive push rod. M and N are both positive integers, and 3≤M≤8, 3≤N≤8.

[0013] The push slide of the new underground explosive pusher pushes the clamp block through the spiral spring to clamp the push rod, and when pushing, the pushing resistance makes the clamping force between the clamp block and the push rod tighter and tighter, and it is not easy to loosen. When the push rod needs to be released or adjusted, it is only necessary to loosen the unlocking sleeve, and the clamps on the top of the inner tube are pushed toward the large end of the cone sleeve. The clamp blocks are guided by the dovetail groove and move outward, thereby loosening the push rod, which is very convenient. Such a design is easy to adjust, and when the push rod is installed, the clamping force comes from the rebound force of the spiral spring, the clamping force will not be too large, and it is convenient to disassemble and assemble, the clamping force is controllable, and it is easy to adjust the clamping position.

[0014] As an optimization, the insertion hole of the spring pad and the through hole of the gland are both stepped holes composed of large and small holes, the large hole is the coil spring positioning hole, and the two ends of the coil spring extend into the large holes of the corresponding stepped holes. This design ensures that the axis of the coil spring coincides with the nylon guide column, and the nylon guide column is not easily worn when the coil spring is extended or retracted.

[0015] As an optimization, a handle is further provided on the outer circumference of the unlocking rotary sleeve. When the unlocking rotary sleeve needs to be rotated, the handle is held by hand, which is more labor-saving.

[0016] The push beam elevation angle adjustment structure of the novel underground explosive pusher is simple, firm, and easy to adjust, and the position of the clamping push rod can be adjusted, so the novel underground explosive pusher is suitable for use in underground explosive pushing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following is a further description of the novel underground explosive pusher in conjunction with the accompanying drawings:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the first embodiment of the novel underground explosive pusher;

[0019] Figure 2 This is a schematic diagram of the side view structure of the push beam of the first embodiment of the novel underground explosive push vehicle in a horizontal state;

[0020] Figure 3 This is a side view structural diagram of the first embodiment of the novel underground explosive pusher vehicle in a tilted state of the pusher beam;

[0021] Figure 4 This is a side view structural diagram of the first embodiment of the novel underground explosive pusher in a vertical state of the pusher beam;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of a cone sleeve in a pushing slide seat of the second embodiment of the novel underground explosive pushing vehicle;

[0023] Figure 6 3D schematic diagram of the wedge-shaped clamping block in the pushing slide of the second embodiment of the novel underground explosive pushing vehicle);

[0024] Figure 7 yes Figure 5 The AA structural diagram of the cone sleeve shown (cut along the vertical plane passing through the axis centerline);

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the pressure cover in the pushing slide seat of the second embodiment of the novel underground explosive pushing vehicle;

[0026] Fig. 9 It is a structural schematic diagram of an unlocking rotary sleeve in a pushing slide seat of a second embodiment of the novel underground explosive pushing vehicle;

[0027] Fig.10 This is a schematic structural diagram of the assembly state of the spring pad, spring and nylon guide column in the push slide of the second embodiment of the new underground explosive push vehicle;

[0028] Fig.11 This is a schematic diagram of the exploded three-dimensional structure of the push slide of the second embodiment of the novel underground explosive push vehicle;

[0029] Fig.12 It is a three-dimensional structural schematic diagram of a pushing slide seat of the second embodiment of the novel underground explosive pushing vehicle;

[0030] Fig.13 yes Fig.12 The schematic diagram of the BB section structure of the pushing slide of the second implementation mode of the novel underground explosive pushing vehicle is shown;

[0031] Fig.14 This is a schematic diagram of the structure of the push slide in the second embodiment of the novel underground explosive push vehicle in the use state;

[0032] Fig.15 yes Fig.14 The CC section structure schematic diagram of the pushing slide of the second implementation mode of the new underground explosive pushing vehicle is shown.

[0033] In the figure: 1 is a crawler, 2 is a push beam, 3 is a first rotary reducer, 4 is a mounting plate, 5 is a clamping cylinder, 6 is a push motor, 7 is a push slide, 8 is a chain, 9 is a column, 10 is a lug, 11 is a horizontal axis, 12 is a front convex part, 13 is an angle adjustment cylinder, 14 is a longitudinal guide rail, 15 is a longitudinal slide plate, 16 is a longitudinal cylinder, 17 is a clamping block, 18 is a push rod for underground explosives, 19 is a pressure cover, 20 is a conical tube sleeve, 21 is a spring washer, 22 is an unlocking rotary sleeve, 221 is an inner tube, 222 is an outer tube, 223 is an annular base plate, 23 is an extension tube, 24 is a flange, 25 is a screw, 26 is an inclined platform, 27 is a dovetail groove, 28 is an inclined ridge, 29 is a boss, 30 is an insertion hole, 31 is a through hole, 32 is a nylon guide column, 33 is a coil spring, 34 is a handle, and 35 is a lifting unit. DETAILED DESCRIPTION

[0034] Implementation method 1: Figure 1-4 As shown, the novel underground explosive pusher includes a crawler 1 and a push beam 2, the crawler 1 is provided with a first rotary reducer 3, a mounting plate 4 capable of horizontal rotation is mounted on the rotary bearing of the first rotary reducer 3, a lifting unit 35 is mounted on the mounting plate 4, a clamping oil cylinder 5 and a push motor 6 are mounted on the front and rear ends of the push beam 2, a push slide 7 capable of moving along the length direction is also mounted on the push beam 2, a sprocket is mounted in one end of the push beam 2 close to the clamping oil cylinder 5, a chain 8 is mounted between the output shaft and the sprocket of the push motor 6, the chain 8 is fixed on the push slide 7, and the push motor 6 can drive the push slide 7 to move close to the clamping oil cylinder 5 when it is started. Nearly, it is characterized in that: the lifting unit 35 includes a column 9 and a telescopic cylinder (not shown in the figure), the cylinder body of the telescopic cylinder is arranged in the column 9, the lower end of the piston rod of the telescopic cylinder extends out of the cylinder body and is fixed on the mounting plate 4, a pair of lugs 10 are provided in the middle section of the push beam 2, a horizontal transverse axis 11 is provided on the rear side of the top of the column 9, and relative hinge holes are opened on the lugs 10, and the lugs 10 are hinged on the horizontal transverse axis 11 through the hinge holes, a front convex portion 12 is provided on the front side of the root of the column 9, and an angle adjustment cylinder 13 is hinged between the front convex portion 12 and the front end of the push beam 2, and the angle adjustment cylinder 13 can drive the elevation angle of the front part of the push beam 2 to change within the range of 0 to 90 degrees when it is extended and retracted.

[0035] A longitudinal guide rail 14 is provided on the vehicle body between the two tracks of the tracked vehicle 1, and a longitudinal slide 15 is provided on the longitudinal guide rail 14. The first rotary reducer 3 is arranged on the longitudinal slide 15, and a longitudinal cylinder 16 is provided between the vehicle body and the longitudinal slide 15. When the longitudinal cylinder 16 is extended or retracted, it can drive the longitudinal slide 15 to move forward and backward on the longitudinal guide rail 14.

[0036] Implementation method 2: Figure 5-15As shown, the push slide 7 includes N clamping blocks 17 distributed in an annular shape, and a push rod 18 equipped with a downhole explosive tube can be inserted into the above-mentioned clamping blocks 17 and clamped by the above-mentioned clamping blocks 17. Each clamping block 17 has a large end and a small end, and is in the shape of a wedge. The push slide 7 also includes a gland 19, a cone sleeve 20, a spring washer 21 and an unlocking rotary sleeve 22. The two ends of the cone sleeve 20 are respectively connected to extension pipes 23. The extension pipe 23 at the small end of the cone sleeve 20 is provided with an external thread, and the extension pipe 23 at the large end of the cone sleeve 20 is provided with a flange 24. The gland 19 is fixed to the flange 24 by screws 25. The inner wall of the cone sleeve 20 is N inclined platforms 26 are evenly arranged, each inclined platform 26 is respectively provided with a dovetail groove 27, and an inclined ridge 28 is arranged on the outer side of the clamping block 17. The above-mentioned clamping block 17 corresponds to the inclined platform 26 one by one, and the inclined ridge 28 of each clamping block 17 is embedded in the dovetail groove 27 of the corresponding inclined platform 26, and can slide along the dovetail groove 27. A boss 29 is also arranged on the top of each clamping block 17, and a spring pad 21 is arranged in the extension tube 23 at the large end of the cone tube sleeve 20. The lower surface of the spring pad 21 is pressed on the boss 29 of the clamping block 17. The main bodies of the pressure cover 19, the spring pad 21 and the unlocking rotary sleeve 22 are all annular, and M annular distributions are evenly arranged on the spring pad 21. The gland 19 is provided with through holes 31 corresponding to the insertion holes 30, and each insertion hole 30 is fixed with a nylon guide column 32. The upper ends of the nylon guide columns 32 extend into the corresponding through holes 31 of the gland 19 and can move in the through holes 31. Each nylon guide column 32 is sleeved with a coil spring 33. The two ends of the coil spring 33 are respectively against the gland 19 and the spring pad 21. The unlocking rotary sleeve 22 includes an inner tube 221, an outer tube 222 and an annular base plate 223. The roots of the inner tube 221 and the outer tube 222 are respectively fixed to one side of the annular base plate 223, and the axis lines coincide. The inner wall of 222 is provided with an internal thread matching the external thread on the extension tube 23 at the small end of the cone sleeve 20, and the extension tube 23 at the small end of the cone sleeve 20 is screwed on the internal thread. The lower ends of all clamping blocks 17 are pressed on the outer end of the inner tube 221. When the unlocking sleeve 22 is tightened, the inner tube 221 pushes each clamping block 17 to the large end of the cone sleeve 20. When the unlocking sleeve 22 is loosened, each coil spring 32 rebounds and pushes each clamping block 17 to the small end of the cone sleeve 20 through the spring pad 21, thereby releasing or clamping the underground tube explosive push rod 18, wherein M and N are both positive integers, and 3≤M≤8, 3≤N≤8. In this embodiment, N is 4 and M is 8.

[0037] The insertion hole 30 of the spring pad 21 and the through hole 31 of the gland 19 are both stepped holes consisting of large and small holes, the large hole being the positioning hole of the coil spring 33, and the two ends of the coil spring 33 are respectively inserted into the large holes of the corresponding stepped holes. A handle 34 is also provided on the outer circumference of the unlocking rotary sleeve 22, and the rest of the structure is as described in the first embodiment, which is omitted.

Claims

1. A novel underground explosive pusher, comprising a crawler and a push beam, the crawler is provided with a first rotary reducer, a mounting plate capable of horizontal rotation is mounted on the rotary bearing of the first rotary reducer, a lifting unit is mounted on the mounting plate, a clamping oil cylinder and a push motor are mounted at the front and rear ends of the push beam, respectively, a push slide that can move along the length direction is also mounted on the push beam, a sprocket is mounted in one end of the push beam close to the clamping oil cylinder, a chain is mounted between the output shaft of the push motor and the sprocket, the chain is fixed on the push slide, the push motor can drive the push slide to move close to the clamping oil cylinder when it is started, and the characteristics are as follows: The lifting unit includes a column and a telescopic cylinder, the cylinder body of the telescopic cylinder is arranged in the column, the lower end of the piston rod of the telescopic cylinder extends out of the cylinder body and is fixed on the mounting plate, a pair of lugs are provided in the middle section of the pushing beam, a horizontal transverse axis is provided on the rear side of the top of the column, relative hinge holes are opened on the lugs, and the lugs are hinged on the horizontal transverse axis through the hinge holes, a front convex part is provided on the front side of the root of the column, an angle adjustment cylinder is hinged between the front convex part and the front end of the pushing beam, and the angle adjustment cylinder can drive the elevation angle of the front part of the pushing beam to change within the range of 0 to 90 degrees when telescoping.

2. The novel underground explosive pusher according to claim 1 is characterized in that: A longitudinal guide rail is provided on the vehicle body between the two tracks of the tracked vehicle, a longitudinal slide is provided on the longitudinal guide rail, the first rotary reducer is arranged on the longitudinal slide, a longitudinal oil cylinder is provided between the vehicle body and the longitudinal slide, and the longitudinal oil cylinder can drive the longitudinal slide to move forward and backward on the longitudinal guide rail when it is extended or retracted.

3. The novel underground explosive pusher according to claim 1 is characterized in that: The push slide seat includes N clamping blocks distributed in an annular shape. A push rod equipped with underground explosive tube can be inserted into the above clamping blocks and clamped by the above clamping blocks. Each clamping block has a large end and a small end, and is in the shape of a wedge. The push slide seat also includes a gland, a cone sleeve, a spring pad and an unlocking rotary sleeve. The two ends of the cone sleeve are respectively connected with extension pipes. The extension pipe at the small end of the cone sleeve is provided with an external thread, and the extension pipe at the large end of the cone sleeve is provided with a flange. The gland is fixed to the flange by screws, and the inner wall of the cone sleeve is provided with a spring pad. N inclined platforms are evenly arranged, each inclined platform is respectively provided with a dovetail groove, and an inclined convex ridge is arranged on the outer side of the clamp block. The above-mentioned clamp block corresponds to the inclined platform one by one, and the inclined convex ridge of each clamp block is embedded in the dovetail groove of the corresponding inclined platform and can slide along the dovetail groove. A boss is also arranged on the top of each clamp block, and a spring pad is arranged in the extension tube of the large end of the cone tube sleeve, and the lower surface of the spring pad is pressed on the boss of the clamp block. The gland, spring pad and unlocking rotary sleeve body are all annular, and M annularly distributed plugs are evenly arranged on the spring pad. The gland is provided with through holes corresponding to the insertion holes one by one, and a nylon guide column is fixed in each insertion hole. The upper ends of the nylon guide columns extend into the corresponding through holes of the gland and can move in the through holes. A coil spring is sleeved on each nylon guide column, and the two ends of the coil spring are respectively against the gland and the spring pad. The unlocking rotary sleeve includes an inner tube, an outer tube and an annular base. The root of the inner tube and the root of the outer tube are respectively fixedly connected to one side of the annular base, and the axis center lines coincide with each other. The inner wall of the outer tube is provided with a tapered The external thread of the extension tube at the small end of the sleeve matches the internal thread, and is screwed onto the extension tube at the small end of the cone sleeve through the internal thread. The lower ends of all clamps are pressed on the outer end of the inner tube. When the rotary sleeve is tightened and unlocked, the inner tube pushes each clamp to the large end of the cone sleeve. When the rotary sleeve is loosened and unlocked, each coil spring rebounds and pushes each clamp to the small end of the cone sleeve through the spring pad, so as to release or clamp the underground tube explosive push rod. M and N are both positive integers, and 3≤M≤8, 3≤N≤8.

4. The novel underground explosive pusher according to claim 3 is characterized in that: The insertion hole of the spring pad and the through hole of the gland are both stepped holes composed of large and small holes, the large hole is a spiral spring positioning hole, and the two ends of the spiral spring extend into the large holes of the corresponding stepped holes respectively.

5. The novel underground explosive pusher according to claim 3 is characterized in that: A handle is also provided on the outer circumference of the unlocking rotary sleeve.

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