CN116816406A - Double-position sliding type automatic rod replacing mechanism for variable-stroke coal mine and jumbolter - Google Patents
Double-position sliding type automatic rod replacing mechanism for variable-stroke coal mine and jumbolter Download PDFInfo
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- CN116816406A CN116816406A CN202311021966.9A CN202311021966A CN116816406A CN 116816406 A CN116816406 A CN 116816406A CN 202311021966 A CN202311021966 A CN 202311021966A CN 116816406 A CN116816406 A CN 116816406A
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- rod
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
- E21B19/15—Racking of rods in horizontal position; Handling between horizontal and vertical position
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- Mining & Mineral Resources (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
本发明公开了一种可变行程煤矿用双位滑移式自动换杆机构及锚杆钻机，自动换杆机构包括夹持器、换杆机构、滑移平台、滑移油缸、夹持器油缸，换杆机构包括第一换杆装置、第二换杆装置和底座，底座上对称设有第一换杆装置、第二换杆装置，第一换杆装置和第二换杆装置结构相同，均包括悬杆、U型侧板、支架立板、夹持器和夹持器油缸，U型侧板、支架立板连接在底座上，U型侧板的外侧面固定有悬杆，U型侧板的内侧面连接有夹持器，支架立板的内侧面连接有夹持器油缸，夹持器油缸连接夹持器，滑移油缸端部铰接在滑移平台上，滑移油缸伸缩端连接底座，连接底座滑动连接在滑移平台上。
The invention discloses a double-position sliding automatic rod changing mechanism and an anchor drill with a variable stroke for coal mines. The automatic rod changing mechanism includes a clamper, a rod changing mechanism, a sliding platform, a sliding oil cylinder, and a clamper oil cylinder. , the rod changing mechanism includes a first rod changing device, a second rod changing device and a base. The first rod changing device and the second rod changing device are symmetrically arranged on the base. The first rod changing device and the second rod changing device have the same structure. They all include a suspension rod, a U-shaped side plate, a bracket vertical plate, a clamper and a clamper cylinder. The U-shaped side plate and bracket vertical plate are connected to the base. A suspension rod is fixed on the outer side of the U-shaped side plate. The U-shaped The inner side of the side plate is connected with a clamper, the inner side of the bracket vertical plate is connected with a clamper oil cylinder, the clamper oil cylinder is connected to the clamper, the end of the sliding oil cylinder is hinged on the sliding platform, and the telescopic end of the sliding oil cylinder The connection base is slidably connected to the sliding platform.
Description
Technical Field
The application relates to a double-position sliding type automatic rod replacing mechanism for a variable-stroke coal mine and an anchor rod drilling machine, and belongs to the technical field of coal mine tunneling roadway support construction.
Background
At present, due to the limitation of the space of a coal mine tunnel, the known jumbolter for the coal mine is small in size and formation, and the construction drilling stroke is generally less than 2 meters. When the drilling depth is greater than the drilling stroke of the drilling machine, only manual connecting rods can be adopted, and because the construction of the jumbolter can realize 180-degree rotary construction in horizontal and vertical spaces, the manual rod replacement is difficult and dangerous work in the construction process, and the construction strength is high.
The structure of the existing jumbolter, as shown in figure 1, comprises a fixed base frame, a sliding frame, a drilling box and a clamp holder. The anchor rod drilling machine mainly realizes two-stage sliding expansion. The first-stage slip telescoping includes: the clamp holder slides and stretches, and is driven by the clamp holder cylinder to stretch and stretch; the sliding frame slides and stretches, and is driven by the sliding frame oil cylinder. The secondary sliding expansion comprises sliding expansion of the drilling box, and the secondary sliding is realized by driving the drilling oil cylinder by chain transmission. The two-stage sliding stroke is 800mm, and the total of the two stages can realize the drilling depth of 1.6 meters. The minimum transport size of about 1.2 meters can be achieved after two-stage retraction.
The construction drilling process is as follows: the clamp holder stretches out to the travel position of the drill rod, the drill rod is installed to enable one end of the drill rod to be installed in the driving joint of the drill box, and the other end of the drill rod is clamped by the clamp holder clamp. And then the amplitude-variable arm support stretches out the jumbolter to a designated hole site, and the front end panel of the clamp holder is ensured to be propped against the wall of the roadway. And the clamp is loosened, and the drilling box is rotated to move forwards to realize the drilling action. When the drill rod is pulled back, the drill box or the clamp holder clamps or clamps the drill rod to retract, and the drill rod is pulled out. When the automatic rod replacing mechanism is not available, all auxiliary actions are completed manually, and people participate in the whole drilling process and complete the actions of rod releasing, rod unlocking, rod releasing and the like. The working danger is heavy.
Another common method is to design a swinging rod replacing mechanism to drive a drill rod to swing to a hole position in a rotating way through a rotating mechanism and to match with a clamping rotating mechanism to replace multiple rods. The swing rod replacing mechanism can only be installed on the fixed base frame at the lowest end of the structure to ensure the relative fixation of the rod replacing position, so that the height and the size of the structure are required to be large, the structural quality of the swing rod replacing mechanism is very large, and the quality of the swing rod replacing mechanism is even larger than that of the jumbolter. In addition, because the side swing is needed to give off the drilling space of the drilling box, the needed side swing space is also larger. The swing type rod replacing mechanism is poor in structural rigidity, rotation precision and repeated positioning precision, and is not suitable for the requirements of flexible construction of a small space and a lightweight jumbolter of a coal mine roadway.
Disclosure of Invention
The application aims to solve the defects of the prior art, and provides a double-position sliding type automatic rod replacing mechanism for a variable-stroke coal mine and an jumbolter, which solve the problems that in the prior art, rod replacement is inconvenient in the drilling process and the rod replacing mechanism occupies large space.
In order to achieve the above object, the present application adopts the following technical scheme:
a double-position sliding type automatic rod replacing mechanism for a variable-stroke coal mine comprises a clamp holder, a rod replacing mechanism, a sliding platform, a sliding oil cylinder and a clamp holder oil cylinder;
a guide sleeve is arranged on the sliding platform;
the rod replacing mechanism comprises a first rod replacing device, a second rod replacing device and a base, wherein the first rod replacing device and the second rod replacing device are symmetrically arranged on the base;
the first rod replacing device and the second rod replacing device are identical in structure and comprise suspension rods, U-shaped side plates, support vertical plates, holders and holder cylinders, wherein the U-shaped side plates and the support vertical plates are connected to the base, the suspension rods are fixed on the outer side surfaces of the U-shaped side plates, the holders are connected to the inner side surfaces of the U-shaped side plates, the holder cylinders are connected to the inner side surfaces of the support vertical plates, and the holder cylinders are connected with the holders;
the U-shaped side plate is provided with a U-shaped opening, the U-shaped opening faces the symmetrical center of the rod replacing mechanism, the central axis of the U-shaped opening is coaxial with the central axis of the clamp holder, and the central axis of the clamp holder and the central axis of the guide sleeve are positioned on the same plane;
the end part of the sliding oil cylinder is hinged to the sliding platform, the telescopic end of the sliding oil cylinder is connected with the base, and the connecting base is connected to the sliding platform in a sliding manner.
Further, the sliding platform comprises an oil cylinder bottom plate, a left side plate, a connecting plate, a right side plate and a guide sleeve;
the two sides of the connecting plate are respectively connected with a left side plate and a right side plate, the bottom surface of the oil cylinder bottom plate is connected with the top surface of the left side plate, the side surface of the oil cylinder bottom plate is connected with the side surface of the right side plate, and the top end of the right side plate is also provided with a guide sleeve;
the upper plane of the oil cylinder bottom plate is provided with a wedge-shaped chute.
Further, a wedge-shaped sliding groove is formed in the sliding platform, and a wedge-shaped guide rail matched with the wedge-shaped sliding groove is arranged at the bottom of the base.
Further, the cantilever end of the cantilever rod is provided with a U-shaped guide plate, the U-shaped guide plate is provided with a U-shaped opening, the U-shaped opening faces the symmetrical center of the rod replacing mechanism, and the U-shaped opening on the U-shaped guide plate and the central axis of the clamp holder are coaxially arranged.
Further, the U-shaped side plates and the U-shaped guide plates are respectively connected with a rubber clamping block, the rubber clamping blocks are provided with U-shaped openings, and the U-shaped openings on the rubber clamping blocks are coaxially arranged with the central axis of the clamp holder.
Further, the sliding oil cylinder comprises a first travel position and a second travel position,
when the sliding oil cylinder is positioned at the first travel position, the symmetrical center of the rod replacing mechanism and the central axis of the guide sleeve are positioned on the same plane;
when the sliding oil cylinder is positioned at the second stroke position, the sliding oil cylinder is in a full-extension state, and the upper clamp holder of the second rod replacing device is coaxial with the guide sleeve;
when the sliding oil cylinder is at the initial position, the sliding oil cylinder is in a fully contracted state, and the upper clamp holder of the first rod replacing device is coaxial with the guide sleeve.
The jumbolter comprises a fixed base frame, a drill box and the two-position sliding type automatic rod changing mechanism for the variable-stroke coal mine, wherein the two-position sliding type automatic rod changing mechanism comprises a fixed base frame, a drill box and a drill rod;
the drill box is connected to the fixed base frame in a sliding way, and is coaxial with the guide sleeve;
the fixed base frame is also provided with a rod replacing mechanism guide rod, a first guide block and a telescopic sliding oil cylinder, one end of the telescopic sliding oil cylinder is fixedly connected to the fixed base frame, the other end of the telescopic sliding oil cylinder is connected with the rod replacing mechanism, the first guide block is fixedly connected to the fixed base frame, the rod replacing mechanism guide rod is arranged in the guide block, and one end of the rod replacing mechanism guide rod is connected with the rod replacing mechanism.
Further, the device also comprises a carriage, a carriage oil cylinder, a second guide block and a carriage guide rod,
the second guide block is fixedly connected to the fixed base frame, the carriage guide rod is arranged in the second guide block, two ends of the carriage guide rod are respectively and fixedly connected with two ends of the carriage, one end of the carriage oil cylinder is connected to the carriage, and the other end of the carriage oil cylinder is fixed to the fixed base frame.
Further, the chain transmission mechanism comprises a drilling box base, a chain rail, a drilling box oil cylinder and a chain wheel, and a drilling box guide rod is further arranged on the carriage;
the drilling box is arranged on the drilling box base, the drilling box base is arranged on the drilling box guide rod, two ends of the drilling box guide rod are respectively connected to two ends of the sliding frame, a piston end of the drilling box oil cylinder is connected with the sliding frame, two sides of a cylinder body end of the drilling box oil cylinder are connected with chain wheels, the chain wheels are meshed with chain rails, and the chain rails are fixedly connected with the lower plane of the drilling box base.
The application has the beneficial effects that:
1. the two-position positioning of the rod replacing mechanism is realized by virtue of the sliding oil cylinder at the lower side of the rod replacing mechanism, and the two-position sliding is realized by virtue of the expansion and contraction of the sliding oil cylinder, so that the automatic replacement, drilling and rod withdrawing of two drill rods are realized, and the simple, reliable and practical automatic rod replacing and automatic drilling are realized; the operation space of the drilling box is reserved through the extension and retraction of the sliding oil cylinder, so that the whole occupied space of the mechanism is smaller.
2. The minimum and maximum strokes of the sliding oil cylinder correspond to the full-shrinkage and full-extension positions, so that the positioning is accurate, the repetition accuracy is high, and the control is simple and reliable.
3. The automatic rod replacing, drilling and rod withdrawing device can automatically replace rods, drill and withdraw rods when a plurality of hole sites are constructed, avoids the work of manual connecting rods, saves human resources, reduces construction risks, improves construction efficiency, is simple and reliable in structure, can realize the cyclic replacement of two drill rods, does not occupy the effective space of a roadway, and is light in weight.
Drawings
FIG. 1 is a schematic view of a construction of a conventional jumbolter;
FIG. 2 is a schematic view of the roof bolter of the present application;
FIG. 3 is a schematic view of the structure of the automatic rod changing mechanism of the present application;
FIG. 4 is a schematic view of a cylinder floor of the present application;
FIG. 5 is a schematic view of a base of the present application;
FIG. 6 is a schematic view of a first working position of the jumbolter rod changing process of the present application;
FIG. 7 is a schematic view of a second operational position of the roof bolter of the present application during a rod change process;
FIG. 8 is a schematic view of a third operational position of the roof bolter rod changing process of the present application;
FIG. 9 is a schematic view of a fourth working position of the roof bolter rod changing process of the present application;
FIG. 10 is a schematic view of a fifth operational position of the roof bolter rod changing process of the present application;
FIG. 11 is a schematic view of a sixth operational position of the roof bolter of the present application during a rod change process;
FIG. 12 is a schematic view of a seventh operational position of the roof bolter rod changing process of the present application;
FIG. 13 is a schematic view of an eighth operational position of the roof bolter of the present application during a rod change process;
FIG. 14 is a schematic view of a ninth operational position of the roof bolter of the present application during a rod change process;
FIG. 15 is a schematic view of a tenth operational position of the roof bolter rod changing process of the present application;
FIG. 16 is a schematic view of an eleventh operational position of the roof bolter of the present application during a rod change process;
FIG. 17 is a schematic view of a twelfth operational position of the roof bolter of the present application during a rod change process;
FIG. 18 is a schematic view of a thirteenth working position of the roof bolter of the present application during a rod change process;
FIG. 19 is a schematic view of the gripper installation of the present application;
FIG. 20 is a schematic view of a chain drive mechanism of the present application;
fig. 21 is a side view of the roof bolter construction of the present application.
Meaning of reference numerals in the drawings: 1-an automatic rod replacing mechanism; 2-fixing the base frame; 3-drilling a box; 4-carriage; 8-chain transmission mechanism; 9-a telescopic sliding oil cylinder; 10-a carriage cylinder; 11-a rubber clamping block; 12-a holder; 13-a rod changing mechanism; 14-a sliding platform; 15-a sliding oil cylinder; 16-a clamp holder cylinder; 17-a rod replacing mechanism guide rod; 18-a first guide block; 19-a second guide block; 131-a first lever arrangement; 132-a second lever arrangement; 133-a base; 134-U-shaped guide plates; 135-hanging rods; 136-U-shaped side plates; 137-wedge rail; 138-bracket riser; 141-an oil cylinder bottom plate; 142-left side panel; 143-connecting plates; 144-right side plate; 145-a guide sleeve; 146-wedge chute; 147-hinge base; 31-a drill box drill sleeve; 41-drill box guide bar; 42-carriage guide bar; 81-a drill box base; 82-caterpillar tracks; 83-a drilling box oil cylinder; 84-sprocket.
Detailed Description
The following detailed description of the technical solutions of the present application will be given by way of the accompanying drawings and specific embodiments, and it should be understood that the specific features of the embodiments and embodiments of the present application are detailed descriptions of the technical solutions of the present application, and not limiting the technical solutions of the present application, and that the embodiments and technical features of the embodiments of the present application may be combined with each other without conflict.
Example 1
The embodiment discloses a double-position sliding type automatic rod replacing mechanism for a variable-stroke coal mine, which comprises a rubber clamp holder 12, a rod replacing mechanism 13, a sliding platform 14, a sliding oil cylinder 15 and a clamp holder oil cylinder 16 as shown in figure 3.
The sliding platform 14 comprises an oil cylinder bottom plate 141, a left side plate 142, a connecting plate 143, a right side plate 144 and a guide sleeve 145. The left side plate 142 and the right side plate 144 are respectively connected to the both sides of the connecting plate 143, and left side plate 142 top surface is connected to the hydro-cylinder bottom plate 141 bottom surface, and right side plate 144 side is connected to hydro-cylinder bottom plate 141 side, and right side plate 144 top still is equipped with uide bushing 145.
As shown in fig. 2, the outer side surface of the left side plate 142 is connected with a rod changing mechanism guide rod 17, and the rod changing mechanism guide rod 17 is arranged in the fixed base frame 2. As shown in fig. 4, a hinge seat 147 and a transverse wedge-shaped chute 146 are arranged on the cylinder bottom plate 141, the fixed end of the sliding cylinder 15 is hinged on the hinge seat 147 of the cylinder bottom plate 141 by a pin, and the telescopic end of the sliding cylinder 15 is connected with the base 133. Referring to fig. 5, a wedge rail 137 is formed at a lower portion of the base 133, the wedge rail 137 is installed in the wedge chute 146, and the base 133 can slide in the wedge chute 146.
As can be seen from fig. 3, the rod replacing mechanism 13 includes a first rod replacing device 131, a second rod replacing device 132 and a base 133, the base 133 is fixedly connected with the sliding cylinder 15, the first rod replacing device 131 and the second rod replacing device 132 are symmetrically arranged on the base 133 along with the telescopic action of the sliding cylinder 15, the first rod replacing device 131 and the second rod replacing device 132 have the same structure, each rod replacing device includes a U-shaped guide plate 134, a suspension rod 135, a U-shaped side plate 136, a bracket vertical plate 138, a gripper 12 and a gripper cylinder 16, the U-shaped side plate 136 and the bracket vertical plate 138 are connected to the base 133, the suspension rod 135 is fixed on the outer side surface of the U-shaped side plate 136, the gripper 12 is mounted on the inner side surface of the U-shaped side plate 136, as shown in fig. 19, the gripper 12 is driven by the gripper cylinder 16 mounted on the lower part, the gripper cylinder 16 is fixed on the bracket vertical plate 138, the cylinder rod of the gripper cylinder 16 is connected with the gripper 12 by a pin shaft, and the gripper cylinder 16 is telescopic to drive the gripper 12 to open and clamp.
The cantilever end of the suspension rod 135 is provided with a U-shaped guide plate 134, the U-shaped side plates 136 and the U-shaped guide plate 134 are respectively connected with a rubber clamping block 11, the U-shaped side plates 136, the U-shaped guide plate 134 and the rubber clamping block 11 are respectively provided with U-shaped openings, the U-shaped openings face towards the center of the drilling machine, and the U-shaped openings face towards the center of the drilling machine, so that the rod replacing mechanism 13 can be ensured to smoothly return to the middle position without interference after rod replacement. During operation, the drill rod is clamped into the U-shaped side plate 136, the U-shaped guide plate 134 and the rubber clamping block 11 from the U-shaped opening side, the clamp holder 12 clamps the drill rod under the drive of the clamp holder oil cylinder 16, and the clamp holder 12 can be loosened in the process of rod replacement due to the fact that the drilling machine can work at a large angle, so that the rubber clamping block 11 is designed to assist in clamping, and the drill rod is prevented from falling by the clamping force of the rubber clamping block 11. Because the U-shaped opening direction is towards the drilling center position of the drilling machine, the rod replacing mechanism can retract to the middle position when the drill rod is conveyed to the center position, and the clamping stagnation or the interference can be avoided.
The sliding oil cylinder 15 has two travel positions, when the sliding oil cylinder 15 is positioned at the first travel position, the rod replacing mechanism 13 is positioned in the middle position, the central axis of the rod replacing mechanism 13 and the central axis of the guide sleeve 145 are positioned on the same plane, at the moment, the drilling of a drilling box can be performed, as the first rod replacing device 131 and the second rod replacing device 132 are not aligned with the guide sleeve 145, the drilling box can pass through the middle of the first rod replacing device 131 and the second rod replacing device 132, the whole travel is free from interference with the rod replacing mechanism 13, and in addition, the retraction of the rod replacing mechanism 13 can be performed so as to facilitate the whole machine transportation or transfer; when the sliding oil cylinder 15 is located at the second stroke position, the sliding oil cylinder 15 is in a full-extension state, and the second rod replacing device 132 is centered with the guide sleeve 145 and used for installing and dismantling the drill rod by the second rod replacing device 132; when the sliding cylinder 15 is at the initial position, the sliding cylinder 15 is in a fully contracted state, and the first rod replacing device 131 is centered with the guide sleeve 145 for the first rod replacing device 131 to install and remove the drill rod. The working positions of the second rod replacing device 132 and the first rod replacing device 131 correspond to the full extension and full retraction positions of the sliding oil cylinder 15 respectively, so that the positioning is accurate, the repetition precision is high, and the control is simple and reliable.
Example two
The embodiment discloses a jumbolter, which comprises a fixed base frame 2, a drill box 3, a sliding frame 4 and an automatic rod replacing mechanism in the first embodiment, as shown in fig. 2.
As shown in fig. 2, the automatic rod changing mechanism 1 is connected to the fixed base frame 2 through a rod changing mechanism guide rod 17, a first guide block 18 is fixedly connected to the fixed base frame 2, the rod changing mechanism guide rod 17 is arranged in the first guide block 18, and one end of the rod changing mechanism guide rod 17 is connected with a left side plate 142. As shown in fig. 21, one end of the telescopic sliding cylinder 9 is fixedly connected to the fixed base frame 2, the other end of the telescopic sliding cylinder 9 is connected to the automatic rod replacing mechanism 1, and the telescopic sliding cylinder 9 can drive the automatic rod replacing mechanism 1 to move along the rod replacing mechanism guide rod 17.
The carriage 4 is connected with the fixed base frame 2 through a carriage guide rod 42, the second guide block 19 is fixedly connected on the fixed base frame 2, the carriage guide rod 42 is arranged in the second guide block 19, two ends of the carriage guide rod 42 are respectively and fixedly connected with two ends of the carriage 4, as shown in fig. 2, the extension and retraction of the carriage 4 are driven by a carriage oil cylinder 10, one end of the carriage oil cylinder 10 is connected on a panel of the carriage 4, and the other end of the carriage oil cylinder 10 is fixed on the fixed base frame 2.
As shown in fig. 20, the extension and retraction of the drill box 3 are realized by the chain transmission mechanism 8, the chain transmission mechanism 8 comprises a drill box base 81, a chain rail 82 and a drill box oil cylinder 83, the drill box 3 is arranged on the drill box base 81, the drill box base 81 is arranged on the drill box guide rod 41 of the carriage 4, the drill box base 81 can slide back and forth along the drill box guide rod 41, and two ends of the drill box guide rod 41 are respectively connected to two end side plates of the carriage 4. The drilling box oil cylinder 83 is a two-stage oil cylinder, the piston end of the drilling box oil cylinder is connected with the sliding frame 4, the two sides of the cylinder body end of the drilling box oil cylinder are connected with chain wheels 84, the chain wheels 84 are meshed with chain rails 82, the chain rails 82 are fixed on the drilling box base 81, when the drilling box oil cylinder 83 stretches, the chain rails 82 are driven by the chain wheels 84 to slide, and then the drilling box base 81 is driven by the chain rails 82 to move. Because the clamp holder is heavy, the automatic rod replacing mechanism 1 has a clamping function, and the clamp holder of the jumbolter is replaced by the double-station rod replacing mechanism 13, so that the whole machine quality can be reduced, redundant actions are reduced, and the control is convenient to simplify.
In the embodiment, the working process and the rod replacing method of the jumbolter with the stroke of 1.6 meters are described by taking the example that 2 drill rods with the stroke of 1.2 meters are required to be clamped. When the jumbolter works:
1. pole loading before work: the automatic rod replacing mechanism 1 is driven by the telescopic sliding oil cylinder 9 to extend forwards by 400mm, the sliding oil cylinder 15 is located at a first travel position, the rod replacing mechanism 13 is located at the middle position, and drill rods are respectively installed on the second rod replacing device 132 and the first rod replacing device 131, so that the front end of each drill rod extends out of the clamping device 42mm, and the clamping device 12 is clamped. As shown in fig. 6.
2. Centering the first drill pipe: the sliding cylinder 15 is retracted to the initial position, and the first rod changing device 131 is just in the centering position, so that the first drill rod, the drill box drill sleeve 31 and the guide sleeve 145 on the first rod changing device 131 are coaxial. As shown in fig. 7.
3. Recognizing a rod: the drill box 3 is slowly moved forward and rotated, so that the driving square head of the drill rod penetrates into the drill sleeve 31 of the drill box, the clamp holder 12 is loosened, the drill box 3 is moved forward continuously, and the drill rod is driven into the front guide sleeve 145. As shown in fig. 8.
4. Drilling a first drill rod: the sliding oil cylinder 15 extends to a first travel position, the rod replacing mechanism 13 is located in the middle position, and the drill box 3 rotates forward to drill until the rear end of the first drill rod is 61mm away from the clamp holder. As shown in fig. 9.
5. And (3) adding a second drill rod: the drill box 3 is retreated to the initial position, the sliding oil cylinder 15 extends to a second stroke position (full-extension state), and the drill rod on the second rod replacing device 132 is just positioned in the middle position of the drill hole, so that the second drill rod on the second rod replacing device 132, the drill box drill sleeve 31 and the guide sleeve 145 are coaxial. The lever mechanism holder 12 is slightly released. The drill box 3 slowly rotates forward until the two sections of rods are connected, and the two sections of drill rods are connected through threads by rotating the drill box. As shown in fig. 10.
6. Drilling a second drill rod: the rod changing mechanism clamp 12 is fully opened, the sliding oil cylinder 15 is contracted to the first travel position, and the rod changing mechanism 13 is positioned in the middle position. The drill box 3 is drilled to a distance of 61mm from the holder at the rear end of the second drill rod. As shown in fig. 11.
7. And (3) rod withdrawal: the drill box is reversed for 30 degrees, the locking drill rod axially displaces and retreats, and the second drill rod is pulled to drive the rear end of the first drill rod to be 61mm away from the clamp holder. As shown in fig. 12.
8. Unloading a second drill rod: the rod changing mechanism 13 is moved to a position where the first rod changing means 131 is exactly in the centered position, and the rod changing mechanism holder 12 is clamped. As shown in fig. 13.
9. Moving the second drill pipe to a neutral position: the drill box 3 reversely rotates to unlock the thread button, and the drill box 3 moves backwards to enable the front end of the second drill rod to be 23mm away from the clamp holder of the rod changing mechanism after the unbuckled second drill rod. The rod changing mechanism gripper 12 grips. The drill box rotates forward by 30 degrees, and retreats to the initial position. The rod changing mechanism 13 slides to the neutral position. As shown in fig. 14.
10. The drill box advances to the front end, and the drill box 3 rotates forward to align holes. As shown in fig. 15.
11. And (3) withdrawing the first drill rod: the drill box 3 is reversely locked, and the drill box 3 withdraws the first drill rod to the position, 42mm away from the clamp holder, of the front end of the first drill rod. The rod changing mechanism 13 is moved to the position where the second rod changing means 132 is just in the centered position, the holder 12 is clamped, and the drill magazine 3 is retracted to the initial position. As shown in fig. 16.
12. The rod changing mechanism 13 slides to the middle position, and the drilling machine moves to the next hole site for drilling. As shown in fig. 17.
13. All drilling is completed, the rod changing mechanism 13 is located at the middle position, and the telescopic oil cylinder of the automatic rod changing mechanism 1 is retracted to the transportation position, as shown in fig. 18.
The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present application, and such modifications and variations should also be regarded as being within the scope of the application.
Claims (9)
1. The double-position sliding type automatic rod replacing mechanism for the variable-stroke coal mine is characterized by comprising a clamp holder (12), a rod replacing mechanism (13), a sliding platform (14), a sliding oil cylinder (15) and a clamp holder oil cylinder (16);
a guide sleeve (145) is arranged on the sliding platform (14);
the rod replacing mechanism (13) comprises a first rod replacing device (131), a second rod replacing device (132) and a base (133), wherein the first rod replacing device (131) and the second rod replacing device (132) are symmetrically arranged on the base (133);
the first rod replacing device (131) and the second rod replacing device (132) are identical in structure and comprise a hanging rod (135), a U-shaped side plate (136), a bracket vertical plate (138), a clamp holder (12) and a clamp holder oil cylinder (16), wherein the U-shaped side plate (136) and the bracket vertical plate (138) are connected to a base (133), the hanging rod (135) is fixed on the outer side surface of the U-shaped side plate (136), the clamp holder (12) is connected to the inner side surface of the U-shaped side plate (136), the clamp holder oil cylinder (16) is connected to the inner side surface of the bracket vertical plate (138), and the clamp holder oil cylinder (16) is connected to the clamp holder (12);
the U-shaped side plate (136) is provided with a U-shaped opening, the U-shaped opening faces the symmetrical center of the rod replacing mechanism (13), the central axis of the U-shaped opening is coaxial with the central axis of the clamp holder (12), and the central axis of the clamp holder (12) and the central axis of the guide sleeve (145) are positioned on the same plane;
the end part of the sliding oil cylinder (15) is hinged to the sliding platform (14), the telescopic end of the sliding oil cylinder (15) is connected with the base (133), and the connecting base (133) is connected to the sliding platform (14) in a sliding mode.
2. The double-position sliding type automatic rod changing mechanism for the variable-stroke coal mine, according to claim 1, wherein the sliding platform (14) comprises an oil cylinder bottom plate (141), a left side plate (142), a connecting plate (143), a right side plate (144) and a guide sleeve (145);
the two sides of the connecting plate (143) are respectively connected with a left side plate (142) and a right side plate (144), the bottom surface of the oil cylinder bottom plate (141) is connected with the top surface of the left side plate (142), the side surface of the oil cylinder bottom plate (141) is connected with the side surface of the right side plate (144), and the top end of the right side plate (144) is also provided with a guide sleeve (145);
the upper plane of the oil cylinder bottom plate (141) is provided with a wedge-shaped chute (146).
3. The double-position sliding type automatic rod replacing mechanism for the variable-stroke coal mine according to claim 1, wherein a wedge-shaped sliding groove (146) is formed in the sliding platform (14), and a wedge-shaped guide rail (137) matched with the wedge-shaped sliding groove (146) is arranged at the bottom of the base (133).
4. The double-position sliding type automatic rod replacing mechanism for the variable-stroke coal mine according to claim 1, wherein a U-shaped guide plate (134) is arranged at the cantilever end of the cantilever rod (135), a U-shaped opening is arranged on the U-shaped guide plate (134), the U-shaped opening faces the symmetrical center of the rod replacing mechanism (13), and the U-shaped opening on the U-shaped guide plate (134) is coaxially arranged with the central axis of the clamp holder (12).
5. The double-position sliding type automatic rod replacing mechanism for the variable-stroke coal mine as claimed in claim 4, wherein the U-shaped side plates (136) and the U-shaped guide plates (134) are respectively connected with a rubber clamping block (11), the rubber clamping blocks (11) are provided with U-shaped openings, and the U-shaped openings on the rubber clamping blocks (11) are coaxially arranged with the central axis of the clamp holder (12).
6. The double-position sliding type automatic rod changing mechanism for the variable stroke coal mine according to claim 1, wherein the sliding oil cylinder (15) comprises a first stroke position and a second stroke position,
when the sliding oil cylinder (15) is positioned at the first travel position, the symmetry center of the rod replacing mechanism (13) and the central axis of the guide sleeve (145) are positioned on the same plane;
when the sliding oil cylinder (15) is positioned at the second stroke position, the sliding oil cylinder (15) is in a full-extension state, and the upper clamp holder (12) of the second rod replacing device (132) is coaxial with the guide sleeve (145);
when the sliding oil cylinder (15) is at an initial position, the sliding oil cylinder (15) is in a fully contracted state, and the upper clamp holder (12) of the first rod replacing device (131) is coaxial with the guide sleeve (145).
7. A roof bolter, characterized by comprising a fixed base frame (2), a drill box (3) and a variable stroke double-position sliding type automatic rod changing mechanism for coal mines according to any one of claims 1-6;
the drill box (3) is connected to the fixed base frame (2) in a sliding manner, and the drill box (3) is coaxial with the guide sleeve (145);
still be equipped with on fixed bed frame (2) and trade pole mechanism guide arm (17), first guide block (18) and flexible hydro-cylinder (9) that slides, flexible hydro-cylinder (9) one end fixed connection is on fixed bed frame (2), flexible other end connection that slides hydro-cylinder (9) trades pole mechanism (13), first guide block (18) fixed connection is on fixed bed frame (2), trade pole mechanism guide arm (17) setting in guide block (18), trade pole mechanism guide arm (17) one end and connect trade pole mechanism (13).
8. The jumbolter of claim 7, further comprising a carriage (4), a carriage cylinder (10), a second guide block (19) and a carriage guide bar (42),
the second guide block (19) is fixedly connected to the fixed base frame (2), the carriage guide rod (42) is arranged in the second guide block (19), two ends of the carriage guide rod (42) are respectively and fixedly connected with two ends of the carriage (4), one end of the carriage oil cylinder (10) is connected to the carriage (4), and the other end of the carriage oil cylinder (10) is fixed to the fixed base frame (2).
9. The jumbolter of claim 7, further comprising a chain drive mechanism (8), the chain drive mechanism (8) comprising a drill box base (81), a chain rail (82), a drill box cylinder (83) and a sprocket (84), the carriage (4) further being provided with a drill box guide bar (41);
the drilling box (3) is arranged on a drilling box base (81), the drilling box base (81) is arranged on a drilling box guide rod (41), two ends of the drilling box guide rod (41) are respectively connected to two ends of a sliding frame (4), a piston end of a drilling box oil cylinder (83) is connected with the sliding frame (4), two sides of a cylinder body end of the drilling box oil cylinder (83) are connected with chain wheels (84), the chain wheels (84) are meshed with a chain rail (82), and the chain rail (82) is fixedly connected with a lower plane of the drilling box base (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311021966.9A CN116816406A (en) | 2023-08-15 | 2023-08-15 | Double-position sliding type automatic rod replacing mechanism for variable-stroke coal mine and jumbolter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311021966.9A CN116816406A (en) | 2023-08-15 | 2023-08-15 | Double-position sliding type automatic rod replacing mechanism for variable-stroke coal mine and jumbolter |
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| Publication Number | Publication Date |
|---|---|
| CN116816406A true CN116816406A (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311021966.9A Pending CN116816406A (en) | 2023-08-15 | 2023-08-15 | Double-position sliding type automatic rod replacing mechanism for variable-stroke coal mine and jumbolter |
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| Country | Link |
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| CN (1) | CN116816406A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119435061A (en) * | 2024-11-06 | 2025-02-14 | 中国煤炭科工集团太原研究院有限公司 | A single-station automatic anchor drilling machine |
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