CN118997676B - Automatic connecting rod device of drill jumbo - Google Patents
Automatic connecting rod device of drill jumbo Download PDFInfo
- Publication number
- CN118997676B CN118997676B CN202411484186.2A CN202411484186A CN118997676B CN 118997676 B CN118997676 B CN 118997676B CN 202411484186 A CN202411484186 A CN 202411484186A CN 118997676 B CN118997676 B CN 118997676B
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- drill rod
- drill
- assembly
- feeding
- drilling
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- 238000005553 drilling Methods 0.000 claims abstract description 97
- 239000011435 rock Substances 0.000 claims abstract description 37
- 230000008093 supporting effect Effects 0.000 claims description 26
- 238000004804 winding Methods 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005422 blasting Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- E21B19/16—Connecting or disconnecting pipe couplings or joints
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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
- E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
-
- 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
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
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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
- E21B19/10—Slips; Spiders ; Catching devices
- E21B19/102—Slips; Spiders ; Catching devices using rollers or spherical balls as load gripping elements
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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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
本发明涉及凿岩施工设备技术领域，具体公开了一种凿岩台车自动接杆装置，包括钻孔臂和安装在钻孔臂上的进给组件、上料组件、导向组件；导向组件包括导向件和限位结构，导向件上设有导向槽，限位结构限制钻杆单向转动，进给组件与钻孔臂滑动配合，进给组件旋转推进钻杆移动；上料组件包括存放槽、托架和驱动件，存放槽有两个，两个存放槽在钻孔臂的长度两端相对设置，钻杆的两端与两个存放槽滑动配合，存放槽的低端为上料位，上料位内同时存在一根钻杆，驱动件驱动托架纵向移动并托举上料位的钻杆上移，本发明的接杆装置便于自动进行接杆操作。
The present invention relates to the technical field of rock drilling construction equipment, and specifically discloses an automatic rod connecting device for a rock drilling trolley, comprising a drilling arm and a feed assembly, a loading assembly and a guide assembly installed on the drilling arm; the guide assembly comprises a guide part and a limiting structure, a guide groove is provided on the guide part, the limiting structure limits the unidirectional rotation of the drill rod, the feed assembly is slidably matched with the drilling arm, and the feed assembly rotates to push the drill rod to move; the loading assembly comprises a storage groove, a bracket and a driving part, there are two storage grooves, the two storage grooves are relatively arranged at both ends of the length of the drilling arm, the two ends of the drill rod are slidably matched with the two storage grooves, the lower end of the storage groove is a loading position, and there is a drill rod in the loading position at the same time, the driving part drives the bracket to move longitudinally and lifts the drill rod at the loading position to move upward, and the rod connecting device of the present invention is convenient for automatic rod connecting operation.
Description
Technical Field
The invention relates to the technical field of rock drilling construction equipment, in particular to an automatic connecting rod device of a rock drilling trolley.
Background
The drill jumbo is heavy mechanical equipment for underground mining, mainly utilizes drilling arm and drilling rod to bore the hole of certain diameter and degree of depth in rock, for follow-up blasting or pneumatic mining activity prepare, when the drill jumbo runs into drilling, when meetting drilling degree of depth and surpassing single drilling rod length, in order to realize the requirement of deeper drilling, need carry out the extension pole operation, through the mode extension pole of manual operation, have the problem that spends time a long time, work efficiency is low and intensity of labour is big.
The patent application document with the publication number of CN109488231A discloses an automatic connecting rod mechanism of a rock drill trolley and the rock drill trolley, wherein the connecting rod mechanism comprises a connecting rod assembly, a drill rod warehouse and a swing rod feeding mechanism, the connecting rod assembly comprises a front end drill rod clamping device and a drill rod tail of the rock drill, the front end drill rod clamping device is connected to a front end support of the rock drill and matched with the drill rod tail to realize connecting rods, the drill rod warehouse is connected to the front end support of the rock drill and is positioned on the side face of a propelling beam of the rock drill and used for storing drill rods, the swing rod feeding mechanism is connected to the front end support of the rock drill and is positioned between the front end drill rod clamping device and the drill rod tail and used for conveying the drill rods in a back-and-forth swing mode between the drill rod warehouse and the connecting rod assembly, the swing rod feeding mechanism of the rock drill trolley provided by the patent application document realizes the back-and-forth swing conveying of the drill rods between the drill rod warehouse and the connecting rod assembly, the automatic connecting rod operation is realized through the drill rod warehouse and the connecting rod storage operation of the drill rods.
The drill jumbo is often used for the drilling operation of underground mine, in order to reach expected blasting effect, sometimes need to drill at the edge of mine hole, and the space that the extension rod mechanism that above-mentioned patent application document disclosed occupy at the drilling rod upside is great, can produce the interference when the drill jumbo drills to mine hole edge position, influences the going on of drilling work.
Disclosure of Invention
The invention provides an automatic connecting rod device of a drill jumbo, and aims to solve the problem that a connecting rod mechanism in the drill jumbo occupies space on the upper side of a drill rod and interferes with drilling of the drill jumbo at the edge of a mine hole in the related art.
The automatic connecting rod device of the drilling trolley comprises a drilling arm, and a feeding assembly, a feeding assembly and a guiding assembly which are arranged on the drilling arm;
The feeding assembly is in sliding fit with the drilling arm and is used for rotationally pushing the drill rod to move the guide assembly to be arranged at one end of the drilling arm far away from the rock drilling car body, the guide assembly comprises a guide piece and a limiting structure, a guide groove is formed in the guide piece, and the limiting structure is arranged in the guide groove and is used for limiting the drill rod to rotate unidirectionally;
The feeding assembly comprises two storage tanks, a bracket and a driving piece, wherein the two storage tanks are oppositely arranged at two ends of the length of the drilling arm, two ends of a drill rod are respectively in sliding fit with the two storage tanks, the lower end of the storage tank is provided with a feeding level, one drill rod is simultaneously arranged in the feeding level, and the driving piece drives the bracket to longitudinally move and lift the drill rod at the feeding level to move upwards.
The drill rod has the beneficial effects that the drill rod is convenient to automatically connect according to the drilling depth requirement in the drilling process, meanwhile, the drill rod cannot be disturbed in the drilling operation of the drill jumbo on the edge of a mine hole, the feeding assembly rotationally pushes the drill rod to drill into rock, when the length of one drill rod does not meet the requirement, the guiding assembly is used for limiting the drill rod to rotate unidirectionally after the drilling operation of the drill rod is in place, so that the feeding assembly is smoothly separated from the old drill rod, the feeding assembly is used for feeding new drill rod again, the external thread end of the drill rod is in threaded connection with the internal thread end of the drill rod drilled into the rock, the feeding assembly is in threaded fit with the new drill rod again, the drill rod is automatically fed according to the drilling requirement, the operation of the drill rod is convenient, the occupation of space is reduced, and the interference to the drilling operation of the drill jumbo on the edge of the mine hole is avoided.
Preferably, the limiting structure comprises an outer cylinder and an inner cylinder, the outer cylinder is fixed in the guide groove, the inner cylinder is coaxially arranged on the inner side of the outer cylinder and is in running fit with the outer cylinder, one end of a drill rod is provided with external threads, the other end of the drill rod is provided with internal threads, and when the drill rod moves to the internal thread end of the drill rod to enter the inner cylinder, the drill rod and the inner cylinder are fixed relatively in the circumferential direction.
Preferably, the inner cylinder is in elastic sliding fit with the outer cylinder in the axial direction of the inner cylinder, a movable groove with the width increased along the pushing direction of the drill rod is formed in the outer cylinder, the limiting structure further comprises a limiting block and a stop block, the limiting block is in sliding fit with the inner cylinder in the radial direction of the inner cylinder, a limiting groove parallel to the axial direction of the inner cylinder is formed in the inner threaded end of the drill rod, one end of the limiting block stretches into the limiting groove and is in sliding fit with the limiting groove when the inner threaded end of the drill rod enters the inner cylinder, the other end of the limiting block stretches into the movable groove, the stop block is in elastic sliding connection with the outer cylinder in the direction parallel to the axial direction of the outer cylinder, and the stop block is in movable groove and is in movable abutting joint with the limiting block and limits unidirectional rotation of the limiting block.
The novel drill rod guiding device has the beneficial effects that smooth butt joint of two drill rods is facilitated, the guide assembly guides the drill rods, meanwhile, the drill rods can be limited to rotate in one direction only after the end parts of the internal threads of the drill rods move to the guide assembly, when the feeding assembly drives the drill rods reversely, the driving end of the feeding assembly is separated from the internal thread end of the drill rods relatively, the feeding assembly is reset to an initial state after being separated from the drill rods, and after new drill rods are fed, the feeding assembly is fixed with the threads of the new drill rods again through rotation operation, and meanwhile, the new drill rods are connected with the drill rods which stay in the guide assembly, so that the operation of the connecting rod is realized.
Preferably, the bottom of the storage tank is inclined, the feeding level is deviated from the storage tank in the longitudinal direction, the feeding assembly further comprises a feeding tank, and the bottom of the feeding tank is communicated with the feeding level.
Preferably, a longitudinal baffle is arranged between the storage tank and the feeding tank, a notch is arranged at the upper end of the baffle, a first guide plate and a second guide plate are arranged at the notch, the lower end of the first guide plate is in running fit with the baffle through a torsion spring, the first guide plate is inclined from bottom to top to the direction away from the storage tank, the upper end of the second guide plate is in running fit with the drilling arm through the torsion spring, and the lower end of the second guide plate is opposite to the lower end of the second guide plate.
The novel drill rod feeding device has the beneficial effects that new drill rods can be conveniently and smoothly pushed to feed, the drill rods slide along the storage groove and automatically fall into the feeding position, after the drill rods to be mounted enter the feeding position from the storage groove, the driving piece pushes the bracket to move upwards, the bracket drives the drill rods to move upwards until the drill rods are coaxially opposite to the drill rods drilled into rocks, and the storage groove can also collect the taken drill rods after the drilling is finished, so that feeding and discharging operations of the drill rods are facilitated.
Preferably, the drilling mechanism further comprises a supporting component, the supporting component comprises a base, clamping pieces, an adjusting structure and a moving piece, the moving piece drives the base to slide relative to the drilling arm, the clamping pieces are arranged at two positions, the clamping pieces are arranged oppositely and are connected with the base through elastic pieces, the elastic pieces push the two clamping pieces to be relatively close to a clamping drill rod, the drill rod is in running fit with the clamping pieces, the two clamping pieces are connected with the adjusting structure at the same time, and the adjusting structure adjusts the two clamping pieces to move synchronously and relatively.
The drilling device has the beneficial effects that the stability of drilling operation of the drill rod is improved, the drilling precision is ensured, the drill rod is supported by the supporting component at the middle part of the drill rod, the vibration of the drill rod in the rock drilling operation is reduced, and the stability of the feeding component for pushing the drill rod to drill holes is improved.
Preferably, the adjusting structure comprises a gear and two racks, the gear is in running fit with the base, the two racks are respectively fixed with the two clamping pieces, the two racks are relatively parallel and in sliding fit with the base, and the two racks are simultaneously meshed with the gear.
The novel clamping device has the beneficial effects that the precision of the position of the newly-connected drill rod is improved, the two clamping pieces are connected with the adjusting structure at the same time, and the adjusting structure drives the two clamping pieces to synchronously approach and separate through the two racks meshed with the same gear, so that after the support assembly clamps the drill rod, the newly-connected drill rod and the old drill rod are ensured to be coaxial, and the butt joint precision of the drill rod is improved.
Preferably, the width of the upper end of the bracket is smaller than the minimum width of the interval between the lower ends of the two clamping pieces, and the width of the bracket increases from top to bottom.
Preferably, two opposite end surfaces of the clamping piece are provided with clamping parts, opposite end surfaces of the two clamping parts are arc surfaces opposite to the drill rod, rollers are rotatably arranged on the arc surfaces of the two clamping parts, and the rollers are in rolling contact with the drill rod.
Preferably, the feeding assembly is connected with the supporting assembly through a transmission assembly, the transmission assembly comprises a winding drum, a winding rope, a first guide wheel and a second guide wheel, the winding drum is fixed on the drilling arm, the first guide wheel is fixed relative to the feeding assembly, the second guide wheel is fixed relative to the supporting assembly, the winding rope bypasses the first guide wheel and the second guide wheel simultaneously and winds the winding drum, the supporting assembly is located at the middle position of the feeding assembly and the middle position of the guiding assembly, and the moving process of the feeding assembly is twice that of the supporting assembly.
The beneficial effects of the invention are as follows:
(1) According to the demand of drilling depth, be convenient for connect the pole in drilling process, can not cause the interference in the drilling operation of drill jumbo to ore tunnel edge simultaneously, feed assembly rotatory propelling movement drilling rod drills into rock, when the length of a drilling rod does not satisfy the requirement, guide assembly is used for restricting drilling rod unidirectional rotation after drilling operation is put in place, so that feed assembly breaks away from with old drilling rod smoothly, and feed assembly material loading new drilling rod again, and make the external screw thread end of drilling rod and the internal screw thread end threaded connection of drilling into rock drilling rod, feed assembly carries out the material loading to the drilling rod according to the drilling demand is automatic, the pole connecting operation of drilling rod has been made things convenient for, the occupation in space has been reduced simultaneously, avoid producing the interference to the drilling operation of drill jumbo at ore tunnel edge.
(2) The stability of drilling operation of the drill rod is improved, drilling accuracy is guaranteed, the drill rod is supported by the supporting component at the middle of the drill rod, vibration of the drill rod in rock drilling operation is reduced, and stability of the feeding component for pushing the drill rod to drill holes is improved.
Drawings
Fig. 1 is a schematic view of the installation structure of a connecting rod device provided by the invention relative to a body of a rock drilling vehicle.
Fig. 2 is a schematic view of the whole structure of the extension bar device in the present invention.
FIG. 3 is a schematic view of the structure of the take-up reel, the feed assembly and the guide wheel I of the present invention.
Fig. 4 is a schematic view of the configuration of the drill rod and guide assembly of the present invention.
Fig. 5 is a schematic view of the support assembly of the present invention mated with a drill pipe.
FIG. 6 is a schematic view of the arrangement of the holding tank and the loading tank on the drilling arm in the present invention.
Reference numerals:
1. The drilling machine comprises a machine body, 2 drilling arms, 21, a feeding assembly, 22, guide parts, 23, an outer cylinder, 231, a movable groove, 232, a stop dog, 24, an inner cylinder, 241, a limiting block, 25, a storage groove, 251, a loading level, 26, a feeding groove, 27, a first guide plate, 28, a second guide plate, 29, a partition plate, 3, a seat, 31, a clamping part, 311, a clamping part, 32, an elastic part, 33, a rack, 4, a drill rod, 41, a limiting groove, 5, a bracket, 51, a driving part, 6, a winding cylinder, 61, a second guide wheel, 62, a winding rope, 63 and a first guide wheel.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1 and 2, the automatic connecting rod device of the drill jumbo comprises a drilling arm 2, a feeding component 21, a feeding component and a guiding component, wherein the feeding component 21, the feeding component and the guiding component are all arranged on the drilling arm 2, the feeding component 21 is used for rotationally pushing a drill rod 4 to move, the guiding component is arranged at one end of the drilling arm 2 far away from a car body 1, the drill rod 4 passes through the guiding component, one end of the drill rod 4 is provided with external threads, the other end of the drill rod 4 is provided with internal threads, for facilitating smooth drilling of the drill rod 4 into a rock, the external threaded end of the drill rod 4 for first drilling into the rock is fixedly provided with a drill bit, the internal threaded end of the first drill rod 4 is in threaded fit with the feeding component 21, the feeding component 21 drives the drill rod 4 to rotate along the drilling arm 2 so as to meet the requirement of rotationally pushing the drill rod 4 into the rock, the feeding component 21 is a rock drill bit, the drill bit is provided with a hydraulic motor, a gear reduction box, a rotary sleeve and other parts are arranged in the drill bit, the power output by the hydraulic motor drives the drill rod 4 to rotate through the gear reduction box and the rotary sleeve, the drill bit belongs to the prior art, the specific structural characteristics of the drill rod 4 are not repeated, the drill rod 4 is conveniently matched with the drill rod 4, the new drill rod 4 is in the new threaded end, and the new drill rod 4 is in threaded end is not in threaded 4, and the new threaded end is in the new threaded end of the drill rod 4 is in the drill rod 4, and the new threaded end is in the drill rod 4 is in threaded 4, and the new threaded end is in the drill rod 4 and the new threaded requirement is in the drill 4 has the new threaded requirement of the drill rod 4.
As shown in fig. 2 and 6, the feeding assembly comprises two storage tanks 25, a bracket 5 and a driving member 51, wherein the two storage tanks 25 are respectively and oppositely arranged at two ends of the length of the drilling arm 2, two ends of a drill rod 4 are respectively and slidably matched with the two storage tanks 25, the lowest end of the storage tank 25 is a feeding level 251, the feeding level 251 is longitudinally staggered relative to the storage tank 25, and only one drill rod 4 is contained in the feeding level 251 at a time, the feeding assembly further comprises a feeding groove 26, the feeding level 251 is communicated with the feeding groove 26, the feeding level 251 is longitudinally opposite to the feeding groove 26, the driving member 51 is used for driving the bracket 5 to lift on the drilling arm 2, the bracket 5 is positioned at the lower side of the feeding level 251 in the initial state, after the drill rod 4 to be installed enters the feeding level 251 from the storage tank 25, the driving member 51 pushes the bracket 5 to move upwards, the drill rod 4 is driven by the bracket 5 to move upwards until the drill rod 4 is coaxially opposite to the drill rod 4, then the feeding assembly 21 is close to a new drill rod 4 and is in threaded connection with the new drill rod 4 through the threaded end of the feeding assembly, and after the new drill rod 4 is fixed with the new drill rod 4, and the new drill rod 4 is driven to be screwed relatively to the new drill 4, and the assembly is completed.
In the feeding operation, in order to avoid interference to the upward movement of the drill rods 4 pushed by the bracket 5, one drill rod 4 is placed in the storage groove 25 at a time, the drill rods 4 slide along the storage groove 25 and automatically fall into the feeding position 251, after the bracket 5 moves down to the discharging position, new standby drill rods 4 are placed in the drill rods to avoid the influence of the drill rods 4 on the reset of the bracket 5, after the drilling operation is finished, the drill rods 4 are required to be extracted and collected, the feeding assembly 21 pulls out the drill rods 4 from the drilling holes one by one, the drill rods 4 fall from the feeding groove 26 and are collected, in order to facilitate the smooth entering and storage of the drill rods 4 into the storage groove 25, a longitudinal baffle 29 is arranged between the storage groove 25 and the feeding groove 26, a notch is arranged at the upper end of the baffle 29, a first guide plate 27 and a second guide plate 28 are arranged at the notch, the lower end of the first guide plate 27 is in rotary fit with the baffle 29 through a torsion spring, the first guide plate 27 is inclined from bottom to top in a direction away from the storage groove 25, the upper end of the second guide plate 28 is in running fit with the drilling arm 2 through a torsion spring, the lower end of the second guide plate 28 is movably opposite to the lower end of the second guide plate 28, when the taken drill rod 4 falls down along the feeding groove 26, the second guide plate 28 is blocked by the first guide plate 27 to be pushed to rotate and smoothly enter the storage groove 25, in addition, the arrangement of the first guide plate 27 cannot interfere the feeding of the drill rod 4, when the bracket 5 pushes the drill rod 4 to move upwards, the drill rod 4 pushes the first guide plate 27 to rotate relative to the partition 29, the drill rod 4 smoothly moves upwards through the first guide plate 27, the upward movement stability of the drill rod 4 is improved for lifting the bracket 5, the drill rod 4 is prevented from rolling relative to the bracket 5, and an arc-shaped groove matched with the drill rod 4 can be formed in the bracket 5.
As shown in fig. 4, in order to smoothly dock two drill rods 4, when a new drill rod 4 needs to be driven to rotate, the rotation of the other drill rod 4 is limited, a guide assembly is used for guiding the drill rod 4, and can also limit the drill rod 4 to rotate only in one direction after the end part of an internal thread of the drill rod 4 moves to the guide assembly, the guide assembly comprises a guide piece 22 and a limiting structure, the guide piece 22 is provided with a guide groove, the limiting structure is arranged in the guide groove, the limiting structure comprises an inner cylinder 24, an outer cylinder 23, a limiting block 241 and a stop block 232, the inner cylinder 24 and the outer cylinder 23 are coaxially arranged, the outer cylinder 23 is fixed in the guide groove, the inner cylinder 24 is in running fit with the outer cylinder 23 in the outer cylinder 23, the inner cylinder 24 is in sliding fit with the outer cylinder 23 in the axial direction and is in elastic connection, so that one side which is pushed towards the drill rod 4 is the front, the front end part of the inner cylinder 24 and the front end part of the outer cylinder 23 are connected through a spring, and the spring is pressed when the inner cylinder 24 slides forwards in the outer cylinder 23, and the spring stores force;
The limiting blocks 241 and the check blocks 232 are all provided with a plurality of limiting blocks 241, each limiting block 241 is uniformly arranged along the circumferential direction of the inner cylinder 24, each limiting block 241 is in sliding fit with the inner cylinder 24 along the radial direction of the inner cylinder 24, the outer cylinder 23 is provided with a movable groove 231, the movable groove 231 is in a conical shape with the diameter increased along the advancing direction of the drill rod 4, the inner side end part of each limiting block 241 is in contact with the drill rod 4 in the inner cylinder 24, the outer side end part of each limiting block 241 stretches into the movable groove 231, a plurality of limiting grooves 41 are circumferentially arranged on the outer circumferential side of the inner threaded end of the drill rod 4, when the drill rod 4 advances to the threaded end of the drill rod 4 and enters the inner cylinder 24, the inner side end part of each limiting block 241 enters the limiting grooves 41, the limiting blocks 241 and the limiting grooves 41 can slide along the direction parallel to the axial direction of the drill rod 4, the limiting blocks 241 and the limiting grooves 41 are matched to limit the relative rotation of the drill rod 4 and the limiting blocks 241 in the circumferential direction, namely the drill rod 4 and the limiting blocks 241 synchronously rotate in the circumferential direction, after the rotation of the limiting block 241 in the circumferential direction is limited, the rotation of the drill rod 4 is limited, the limiting block 232 is used for limiting the limiting block 241 to rotate in one direction, specifically, the limiting block 232 is elastically matched with the outer cylinder 23, the limiting block 232 can slide along the direction parallel to the axial direction of the outer cylinder 23 when being extruded, the opposite end surface of the limiting block 232 and the limiting block 241 is provided with inclined surfaces, when the drill rod 4 drives the limiting block 241 to rotate forwards, the limiting block 241 is abutted with the inclined surfaces of the limiting block 232 and pushes the limiting block 232 to slide, when the drill rod 4 drives the limiting block 241 to rotate reversely, the limiting block 241 is abutted with the straight surfaces of the limiting block 232, the internal thread end of the drill rod 4 pushes the limiting block 241 to be movably abutted with the limiting block 232 after entering the inner cylinder 24, namely, the pushing position of the drill rod 4 is in place, a new drill rod 4 needs to be connected, the feeding component 21 drives the drill rod 4 reversely, the guide component limits the rotation of the drill rod 4 in the reverse direction, the feeding component 21 is separated from the internal thread end of the drill rod 4 relatively, the feeding component 21 is separated from the drill rod 4 smoothly, the feeding component 21 is reset to an initial state after separating from the drill rod 4, after feeding a new drill rod 4, the feeding component is fixed with the new drill rod 4 through threads through rotation operation, and meanwhile, the new drill rod 4 is connected with the drill rod 4 staying in the guide component, so that the operation of connecting a rod is realized.
In order to facilitate smooth matching of the internal thread end of the drill rod 4 with each limiting block 241 after entering the inner cylinder 24, the front side of the internal thread end of the drill rod 4 is a conical surface with increased diameter from front to back, both front and back end parts of each limiting block 241 are cambered surfaces, so that after the internal thread end of the drill rod 4 enters the inner cylinder 24, each limiting block 241 is extruded by the conical surface of the front side of the internal thread end to be separated relatively, and when the limiting groove 41 on the drill rod 4 rotates to correspond to the limiting block 241, each limiting block 241 respectively enters each limiting groove 41, the rod body part of the drill rod 4 is a circular rod, the rod body part of the drill rod 4 is in sliding fit with each limiting block 241 when the inner cylinder 24, and does not drive each limiting block 241 to rotate, and does not trigger the operation of a limiting structure, and for conveniently detecting that the drill rod 4 is pushed in place, a pressure sensor can be arranged on the end surface connected with the outer cylinder 23, and after the internal thread end of the drill rod 4 is matched with each limiting block 241, each limiting block 241 is relatively far away when the drill rod 4 is pushed in forward, and slides forward under the limitation of the shape of the movable groove 231, and drives the inner cylinder 24 to slide against the outer cylinder 23 to extrude the spring, the pressure sensor is further driven, the pressure sensor is correspondingly pushed by the pressure sensor, and the pressure sensor is connected with the pressure sensor 21, and the pressure sensor is also connected with the pressure sensor, and the pressure sensor 1, the pressure sensor control unit is connected with the pressure control unit, and the control unit is simultaneously, and the control unit.
As shown in fig. 5, the overall length of the drill rod 4 is longer, when the feeding assembly 21 rotates to push the drill rod 4 into the rock, the driving end and the pushing end of the drill rod 4 are too large in distance, so that the stability of the drilling operation of the drill rod 4 can be affected, the stability of the drilling operation of the drill rod 4 is improved, the drilling precision is ensured, and the drilling mechanism further comprises a supporting assembly, which is located between the feeding assembly 21 and the guiding assembly and used for supporting the middle of the drill rod 4.
The supporting component comprises a base body 3, clamping pieces 31, an adjusting structure and moving pieces, the moving pieces drive the base body 3 to slide relative to the drilling arm 2, the two clamping pieces 31 are arranged oppositely and are connected with the base body 3 through elastic pieces 32, the elastic pieces 32 push the two clamping pieces 31 to be relatively close to clamping the drill rod 4, the drill rod 4 is in running fit with the clamping pieces 31, specifically, clamping portions 311 are arranged on opposite end faces of the two clamping pieces 31, opposite end faces of the two clamping portions 311 are arc faces opposite to the drill rod 4, rollers are rotatably arranged on the arc faces of the two clamping portions 311, and the rollers are in rolling contact with the drill rod 4.
In order to ensure that the newly-inserted drill rod 4 is axially opposite to the old drill rod 4, the two clamping members 31 are simultaneously connected with an adjusting structure, the adjusting structure adjusts the two clamping members 31 to synchronously and relatively move, the adjusting structure comprises a gear and two racks 33, the gear is in running fit with the base body 3, the two racks 33 are respectively fixed with the two clamping members 31, the two racks 33 are relatively parallel and are in sliding fit with the base body 3, and the two racks 33 are simultaneously meshed with the gear.
In order to facilitate the feeding assembly to smoothly push the drill rod 4 into the supporting assembly, the width of the upper end of the bracket 5 is smaller than the minimum width of the lower end distance between the two clamping pieces 31, the width of the bracket 5 is increased from top to bottom, when the bracket 5 moves up to be in contact with the lower ends of the two clamping pieces 31, the two clamping pieces 31 are pushed to be relatively far away, the bracket 5 smoothly enters between the two clamping pieces 31 to lift the drill rod 4 to be at a designated height, after the feeding assembly 21 and a new drill rod 4 are connected, the bracket 5 moves downwards to reset, and the two clamping pieces 31 are relatively close to each other under the action of the elastic piece 32 and clamp the drill rod 4.
In order to ensure the supporting effect of the supporting component on the drill rod 4, in the operation of pushing the drill rod 4 into the rock, the supporting component is always located between the guiding component and the feeding component 21, in order to achieve the operation, the feeding component 21 and the supporting component are connected through a transmission component, as shown in fig. 3 and 5, the transmission component comprises a winding drum 6, a winding rope 62, a guiding wheel I63 and a guiding wheel II 61, the winding drum 6 is fixed on the drilling arm 2, the guiding wheel I63 is fixed relative to the feeding component 21, the guiding wheel II 61 is fixed relative to the supporting component, the winding rope 62 simultaneously bypasses the guiding wheel I63 and the guiding wheel II 61 and winds on the winding drum 6, the supporting component is located in the middle of the feeding component 21 and the guiding component, and the moving progress of the feeding component 21 is twice that of the supporting component.
The drive end of the feeding assembly 21 is in a thread shape, so that when the internal thread end of the drill rod 4 enters the guide assembly, the feeding assembly 21 can still be matched with the drill rod 4, and the length of the drive end of the feeding assembly 21 can be set to be larger than that of the support assembly, so that when the feeding assembly 21 pushes the drill rod 4 to move, the drive end of the feeding assembly 21 can penetrate through the support assembly, and the normal driving work of the feeding assembly 21 is prevented from being influenced.
The automatic connecting rod device of the rock drill trolley is convenient for automatically connecting rods according to the drilling depth in the drilling process, reduces the occupation of space, does not cause interference of the rock drill trolley on the drilling operation of the edge of a mine hole, improves the stability of a drill rod in the drilling process and ensures the drilling quality by arranging the supporting component.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. The automatic connecting rod device of the drill jumbo comprises a drilling arm and is characterized by further comprising a feeding assembly, a feeding assembly and a guiding assembly which are arranged on the drilling arm;
The feeding assembly is in sliding fit with the drilling arm and is used for rotationally pushing the drill rod to move, the guide assembly is arranged at one end of the drilling arm far away from the rock drill car body, the guide assembly comprises a guide piece and a limiting structure, a guide groove is formed in the guide piece, and the limiting structure is arranged in the guide groove and is used for limiting the drill rod to rotate unidirectionally;
The feeding assembly comprises two storage tanks, a bracket and a driving piece, wherein the two storage tanks are oppositely arranged at the two ends of the length of the drilling arm, the two ends of the drill rod are respectively in sliding fit with the two storage tanks, the lower end of the storage tank is a feeding level, one drill rod is simultaneously arranged in the feeding level, and the driving piece drives the bracket to longitudinally move and lifts the drill rod at the feeding level to move upwards;
the limiting structure comprises an outer cylinder and an inner cylinder, the outer cylinder is fixed in the guide groove, the inner cylinder is coaxially arranged on the inner side of the outer cylinder and is in running fit with the outer cylinder, one end of the drill rod is provided with external threads, the other end of the drill rod is provided with internal threads, and when the drill rod moves to the internal thread end of the drill rod to enter the inner cylinder, the drill rod and the inner cylinder are relatively fixed in the circumferential direction;
The inner tube is equipped with the movable groove that increases along drilling rod advancing direction width on its axial with urceolus elastic sliding fit on the urceolus, limit structure still includes stopper and dog, stopper along the radial and inner tube sliding fit of inner tube, the internal thread end of drilling rod is equipped with rather than axial parallel's spacing groove, when the internal thread end of drilling rod gets into the inner tube, the one end of stopper stretches into spacing inslot and with spacing groove sliding fit, the other end of stopper stretches into the movable inslot, the dog is along being on a parallel with urceolus axial direction and urceolus elastic sliding connection, dog and stopper movable butt in the movable inslot to restrict stopper unidirectional rotation.
2. The automatic extension bar device of a rock drill jumbo according to claim 1, characterized in that the bottom of the storage tank is inclined, the feeding level is deviated in longitudinal direction with respect to the storage tank, the feeding assembly further comprises a feeding tank, and the bottom of the feeding tank is communicated with the feeding level.
3. The automatic connecting rod device of the rock drill trolley according to claim 2, wherein a longitudinal partition plate is arranged between the storage groove and the feeding groove, a notch is formed in the upper end of the partition plate, a first guide plate and a second guide plate are arranged at the notch, the lower end of the first guide plate is in rotary fit with the partition plate through a torsion spring, the first guide plate is inclined from bottom to top in a direction away from the storage groove, the upper end of the second guide plate is in rotary fit with the drilling arm through the torsion spring, and the lower end of the second guide plate is movably opposite to the lower end of the second guide plate.
4. The automatic drill jumbo extension rod device of claim 1, wherein the drilling mechanism further comprises a supporting component, the supporting component comprises a base, clamping pieces, an adjusting structure and a moving piece, the moving piece drives the base to slide relative to the drilling arm, two clamping pieces are arranged oppositely and are connected with the base through elastic pieces, the elastic pieces push the two clamping pieces to be relatively close to clamping a drill rod, the drill rod is in running fit with the clamping pieces, the two clamping pieces are connected with the adjusting structure at the same time, and the adjusting structure adjusts the two clamping pieces to move synchronously and relatively.
5. The automatic extension bar apparatus of rock drill jumbo of claim 4, wherein the adjustment structure comprises a gear and two racks, the gear is in running fit with the base, the two racks are respectively fixed with the two clamping members, the two racks are relatively parallel and in sliding fit with the base, and the two racks are simultaneously meshed with the gear.
6. The automatic extension bar apparatus of a rock drill rig according to claim 4, wherein the width of the upper end of the bracket is smaller than the minimum width of the spacing between the lower ends of the two clamping members, and the width of the bracket increases from top to bottom.
7. The automatic extension bar device of a rock drill trolley according to claim 4, wherein the opposite end surfaces of the two clamping pieces are provided with clamping parts, the opposite end surfaces of the two clamping parts are arc surfaces opposite to the drill rod, rollers are rotatably arranged on the arc surfaces of the two clamping parts, and the rollers are in rolling contact with the drill rod.
8. The automatic extension bar device of a rock drill trolley according to claim 4, wherein the feeding assembly and the supporting assembly are connected through a transmission assembly, the transmission assembly comprises a winding drum, a winding rope, a first guide wheel and a second guide wheel, the winding drum is fixed on the drilling arm, the first guide wheel is fixed relative to the feeding assembly, the second guide wheel is fixed relative to the supporting assembly, the winding rope bypasses the first guide wheel and the second guide wheel at the same time and is wound on the winding drum, the supporting assembly is located in the middle of the feeding assembly and the guiding assembly, and the moving progress of the feeding assembly is twice that of the supporting assembly.
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| CN202411484186.2A CN118997676B (en) | 2024-10-23 | 2024-10-23 | Automatic connecting rod device of drill jumbo |
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| CN202411484186.2A CN118997676B (en) | 2024-10-23 | 2024-10-23 | Automatic connecting rod device of drill jumbo |
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| CN118997676B true CN118997676B (en) | 2025-02-11 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009156574A1 (en) * | 2008-06-23 | 2009-12-30 | Sandvik Mining And Construction Oy | Rock-drilling unit, drill bit changer, and method for changing drill bit |
| CN117803311A (en) * | 2024-03-01 | 2024-04-02 | 泰安九洲金城机械有限公司 | Rock drilling trolley |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204703797U (en) * | 2015-06-08 | 2015-10-14 | 阿特拉斯科普柯(南京)建筑矿山设备有限公司 | The drill stem conveying device of jumbo |
| CN109441443B (en) * | 2018-12-25 | 2024-02-27 | 河南省耿力工程设备有限公司 | Hydraulic anchor rod trolley |
| CN215369901U (en) * | 2021-06-18 | 2021-12-31 | 宜昌鄂奥图机械制造有限公司 | Anchor rod trolley propulsion beam structure improved based on drill jumbo propulsion beam |
| CN117127912B (en) * | 2023-10-23 | 2024-01-26 | 烟台兴业机械股份有限公司 | Rock drilling trolley |
| CN117386307A (en) * | 2023-11-23 | 2024-01-12 | 长沙理工大学 | A drill rod connecting device for an anchor trolley |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009156574A1 (en) * | 2008-06-23 | 2009-12-30 | Sandvik Mining And Construction Oy | Rock-drilling unit, drill bit changer, and method for changing drill bit |
| CN117803311A (en) * | 2024-03-01 | 2024-04-02 | 泰安九洲金城机械有限公司 | Rock drilling trolley |
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