CN216429616U - Coal conveying buffer device of heading machine for coal mining - Google Patents
Coal conveying buffer device of heading machine for coal mining Download PDFInfo
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- CN216429616U CN216429616U CN202123418940.7U CN202123418940U CN216429616U CN 216429616 U CN216429616 U CN 216429616U CN 202123418940 U CN202123418940 U CN 202123418940U CN 216429616 U CN216429616 U CN 216429616U
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- 239000003245 coal Substances 0.000 title claims abstract description 33
- 238000005065 mining Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 238000007514 turning Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000003139 buffering effect Effects 0.000 description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a coal mining transportation technical field, concretely relates to entry driving machine fortune coal buffer for coal mining, including the I-shaped loading board, the equal fixedly connected with supporting leg in four turnings of I-shaped loading board bottom surface, one side fixedly connected with L shape connecting rod of supporting leg, adjacent two rotate through the axis of rotation between the L shape connecting rod and be connected with the drive roll, the top equidistant a plurality of buffer gear that are provided with of I-shaped loading board. The utility model discloses in, the slider that is driving both ends through the buffer roll slides in corresponding position carriage the inside, and the slider moves down compression buffer spring, and buffer spring slows down the ore through the shrink and jolts the impact force that produces on the conveyer belt, is favorable to improving the stability that the ore was carried, through arc pole compression arc spring, the arc spring slows down the impact force that the conveyer belt both sides received through the shrink to make the smooth-going transport of ore on the conveyer belt.
Description
Technical Field
The utility model relates to a coal mining transportation technical field, concretely relates to entry driving machine fortune coal buffer for coal mining.
Background
The entry driving machine is the machine that is used for digging straight underground tunnel, the entry driving machine is through cutting the position on with the ore exploitation shovel board of portion, carry the conveyer through the shovel board with the ore of cutting off, carry away from the conveyer in the colliery at last, the ore that generally can install the conveyer belt at the discharge end of conveyer carries away the ore of exploitation, the ore often can jolt on the conveyer belt in the in-process of carrying, and traditional conveyer belt only can play the effect of carrying the ore, can not slow down the ore and jolt produced impact force on the conveyer belt, thereby influence the stable transport coal mine of conveyer belt.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problems, the utility model aims to provide a coal transporting buffer device of a tunneling machine for coal mining, a conveying belt is connected between two driving rolls, two tensioning rolls, a plurality of first buffer rolls and a plurality of second buffer rolls in a transmission way, a buffer spring is fixedly connected between a sliding block at two ends of the first buffer roll and the inner bottom surface of a supporting frame, when ores on the conveying belt bump up and down on the conveying belt, the buffer roll drives the sliding block at two ends to slide in the supporting frame at the corresponding position, the sliding block moves down to compress the buffer spring, the buffer spring reduces the impact force generated by bumping the ores on the conveying belt through contraction, the stability of ore conveying is favorably improved, the second buffer rolls are connected at two ends of the first buffer rolls in a rotating way, and the buffer rolls are obliquely arranged towards the direction of the first buffer rolls, thereby the conveying belt is extruded towards the direction of the first buffer rolls, prevent the ore from shifting out of the conveyer belt from the two sides of the conveyer belt in the conveying process, and the end part of the buffer roller II deviating from the buffer roller I is connected with the arc-shaped rod in a rotating way, the arc-shaped rod is connected in a sliding way in the arc-shaped cylinder, the arc-shaped spring is fixedly connected between the arc-shaped rod and the arc-shaped cylinder, when the ore on the two sides of the conveyer belt collides with the two sides of the conveyer belt, the arc-shaped rod compresses the arc-shaped spring, the arc-shaped spring reduces the impact force on the two sides of the conveyer belt through contraction, thereby enabling the ore to be conveyed smoothly on the conveyer belt, through inserting and fixing the shaft lever in the middle part of the buffer roller II, one end of the shaft lever is connected with the arc-shaped rod on the corresponding position in a rotating way, the other end of the shaft lever is connected with the support frame on the corresponding position through the ball hinge, thereby enabling the buffer roller II to move along the arc-shaped track, reducing the impact force on the ore on the two sides of the conveyer belt, through the air cylinder fixedly connected with the bottom surface of the support leg, the height of the conveying belt can be conveniently adjusted by extending or shortening the output end of the air cylinder, and the conveying belt can be conveniently butted with the discharge end of the conveyor of the heading machine to contain ores.
The purpose of the utility model can be realized by the following technical scheme:
a coal conveying buffer device of a heading machine for coal mining comprises an I-shaped bearing plate, wherein four corners of the bottom surface of the I-shaped bearing plate are fixedly connected with supporting legs, one side of each supporting leg is fixedly connected with an L-shaped connecting rod, a driving roller is rotatably connected between every two adjacent L-shaped connecting rods through a rotating shaft, a plurality of buffer mechanisms are arranged above the I-shaped bearing plate at equal intervals, each buffer mechanism comprises a supporting plate, two ends of the middle part of each supporting plate are fixedly connected with a supporting frame, a sliding block is slidably connected inside the supporting frame, a first buffer roller is rotatably connected between every two adjacent sliding blocks, a buffer spring is fixedly connected between each sliding block and the inner bottom surface of the supporting frame, two ends of each supporting plate are fixedly connected with a buffer part, a second buffer roller is arranged between each buffer part and the corresponding supporting frame, and the bottom surfaces of the two supporting plates are provided with tensioning rollers, it is a plurality of the transmission is connected with the conveyer belt between buffer roller one, two drive rolls and two tensioning rollers, wherein, two the equal fixedly connected with in corner of L shape connecting rod is used for the drive to correspond position drive roll pivoted motor, the buffer roller is taking the slider at both ends to slide in corresponding position carriage the inside, the slider moves down compression buffer spring, buffer spring slows down the ore through the shrink and jolts the impact force that produces on the conveyer belt, be favorable to improving the stability that the ore was carried, through arc pole compression arc spring, arc spring slows down the impact force that the conveyer belt both sides received through the shrink, thereby make the ore smooth-going transport on the conveyer belt.
Further, the method comprises the following steps: the bottom surface embedding of supporting leg is fixed with the cylinder, the output fixed connection cushion of cylinder is convenient for adjust the height of conveyer belt through the extension of cylinder output or shorten, is convenient for connect greatly with the discharge end of entry driving machine conveyer and connects the ore, when ground is uneven, can be through adjusting the extension of corresponding position cylinder output, makes I-shaped loading board take conveyer belt horizontal installation at the entry driving machine discharge end.
Further, the method comprises the following steps: one end of the rotating shaft penetrates through the L-shaped connecting rod at the corresponding position and is fixedly sleeved with the first belt wheel, the output end of the motor is fixedly sleeved with the second belt wheel, a belt is connected between the second belt wheel and the first belt wheel in a transmission mode, so that the motor drives the second belt wheel to rotate, and the first belt wheel drives the rotating shaft at the corresponding position to rotate under the transmission effect of the belt so as to rotate the driving roller.
Further, the method comprises the following steps: the two ends of the top surface of the I-shaped bearing plate are fixedly connected with connecting plates, and the top surface of one end of the connecting plates, which deviates from the I-shaped bearing plate, is fixedly connected with the bottom surfaces of the supporting plates at the corresponding positions, so that the supporting plates at the two ends of the I-shaped bearing plate can be stably fixed on the I-shaped bearing plate.
Further, the method comprises the following steps: wherein two the equal fixedly connected with connecting seat in both ends of layer board bottom surface, two rotate between the connecting seat and be connected with the connecting axle that corresponds position tensioning roller grafting is fixed to the conveyer belt can carry out the transmission under the rotation of two drive rolls.
Further, the method comprises the following steps: the bolster include with layer board fixed connection's a ARC section of thick bamboo, the inside sliding connection of a ARC section of thick bamboo has the arc pole, fixedly connected with arc spring between the bottom of arc pole and the interior bottom surface of a ARC section of thick bamboo, the arc pole can be removed along the arc orbit with the buffering roller of being convenient for of a ARC section of thick bamboo cooperation and cushion the impact force of ore, cushions the impact force that the conveyer belt both sides received through the arc spring shrink.
Further, the method comprises the following steps: the supporting frame is characterized in that a positioning block is fixedly connected to one side of the top of the supporting frame, a shaft rod is fixedly inserted into the second buffer roller, one end of the shaft rod is rotatably connected with the top end of the arc-shaped rod at the corresponding position, the other end of the shaft rod is rotatably connected with the positioning block at the corresponding position through a ball hinge, the shaft rod can drive the second buffer roller to rotate to assist in supporting and conveying ores during conveying of a conveying belt, and the shaft rod can also drive the second buffer roller to rotate by taking the ball hinge as an axis at the position of the ball hinge for reducing impact force of buffered ores.
Further, the method comprises the following steps: the bottom surface fixedly connected with sleeve pipe of slider, sheathed tube inside sliding connection have with correspond position carriage in bottom surface fixed connection's slide bar, and buffer spring cup joints in the both outside of sleeve pipe and slide bar to make buffer spring shrink buffering ore impact force in vertical direction.
The utility model has the advantages that:
1. the conveying belt is connected between the two driving rollers, the two tensioning rollers, the first buffering rollers and the second buffering rollers in a transmission manner, the buffering springs are fixedly connected between the sliding blocks at the two ends of the first buffering rollers and the inner bottom surface of the supporting frame, when ores on the conveying belt bump up and down on the conveying belt, the buffering rollers drive the sliding blocks at the two ends to slide in the supporting frame at the corresponding positions, the sliding blocks move downwards to compress the buffering springs, and the buffering springs are contracted to relieve the impact force generated by bumping of the ores on the conveying belt, so that the stability of ore conveying is improved;
2. the two ends of the first buffer roller are rotatably connected with a second buffer roller, and the first buffer roller is obliquely arranged in the direction from two sides to the first buffer roller, so that the first buffer roller extrudes the conveyor belt in the direction from two sides of the first buffer roller, ores are prevented from moving out of the conveyor belt from two sides of the conveyor belt in the conveying process, the end part, deviating from the first buffer roller, of the second buffer roller is rotatably connected with the arc-shaped rod, the arc-shaped rod is slidably connected in the arc-shaped cylinder, the arc-shaped spring is fixedly connected between the arc-shaped rod and the arc-shaped cylinder, when the ores on two sides of the conveyor belt collide with two sides of the conveyor belt, the arc-shaped rod compresses the arc-shaped spring, and the impact force on two sides of the conveyor belt is relieved by contraction of the arc-shaped spring, so that the ores are conveyed smoothly on the conveyor belt;
3. through the middle part at buffer roller two grafting be fixed with the axostylus axostyle, the one end of axostylus axostyle is rotated with corresponding position arc pole and is connected, the other end of axostylus axostyle passes through the ball hinge and rotates with corresponding position carriage to be connected, thereby make buffer roller two can remove along the arc orbit, slow down the impact force of the ore that the conveyer belt both sides received, through the bottom surface fixedly connected with cylinder at the supporting leg, through the extension of cylinder output or shorten the height of being convenient for adjust the conveyer belt, be convenient for connect the ore greatly with the discharge end of entry driving machine conveyer.
Drawings
The present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the middle conveyor belt according to the present invention;
FIG. 3 is a schematic structural view of a support leg and a motor of the present invention;
FIG. 4 is a schematic structural view of the middle support plate and the tension roller of the present invention;
FIG. 5 is a schematic structural view of the middle buffer mechanism of the present invention;
fig. 6 is a schematic view of a part of an enlarged structure at a in fig. 5 according to the present invention;
fig. 7 is a schematic view of the internal structure of the middle support frame of the present invention.
In the figure: 100. an I-shaped carrying plate; 110. supporting legs; 111. an L-shaped connecting rod; 112. a cylinder; 120. a connecting plate; 200. a drive roll; 300. a buffer mechanism; 310. a support plate; 320. a support frame; 321. a slider; 322. a sleeve; 323. positioning blocks; 330. a first buffer roller; 340. a buffer spring; 350. a buffer member; 351. an arc-shaped cylinder; 352. an arcuate bar; 360. a second buffer roller; 400. a tension roller; 500. an electric motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-7, a coal transportation buffer device of a heading machine for coal mining comprises an i-shaped bearing plate 100, wherein four corners of the bottom surface of the i-shaped bearing plate 100 are fixedly connected with supporting legs 110, one side of each supporting leg 110 is fixedly connected with an L-shaped connecting rod 111, two adjacent L-shaped connecting rods 111 are rotatably connected with a driving roller 200 through a rotating shaft, a plurality of buffer mechanisms 300 are arranged above the i-shaped bearing plate 100 at equal intervals, each buffer mechanism 300 comprises a supporting plate 310, two ends of the middle part of each supporting plate 310 are fixedly connected with supporting frames 320, sliding blocks 321 are slidably connected inside the supporting frames 320, a first buffer roller 330 is rotatably connected between two adjacent sliding blocks 321, a buffer spring 340 is fixedly connected between each sliding block 321 and the inner bottom surface of each supporting frame 320, two buffer elements 350 are fixedly connected with two ends of each supporting plate 310, and a second buffer roller 360 is arranged between each buffer element 350 and the corresponding supporting frame 320, wherein the bottom surface of two layer boards 310 is provided with tensioning roller 400, a plurality of buffer roller 330, the transmission is connected with the conveyer belt between two drive rolls 200 and two tensioning rollers 400, wherein, the equal fixedly connected with in corner of two L shape connecting rods 111 is used for driving corresponding position drive roll 200 pivoted motor 500, buffer roller 330 takes the slider 321 at both ends to slide inside corresponding position carriage 320, slider 321 moves down compression buffer spring 340, buffer spring 340 slows down the ore through the shrink and jolts the impact force that produces on the conveyer belt, be favorable to improving the stability that the ore was carried, compress the arc spring through arc pole 352, the arc spring slows down the impact force that the conveyer belt both sides received through the shrink, thereby make the ore smoothly carry on the conveyer belt.
The air cylinder 112 is embedded and fixed on the bottom surface of the supporting leg 110, the output end of the air cylinder 112 is fixedly connected with the cushion block, the height of the conveying belt can be conveniently adjusted by extending or shortening the output end of the air cylinder 112, the conveying belt can be conveniently connected with the discharge end of the conveyor of the heading machine to contain and receive ores, and when the ground surface is uneven, the I-shaped bearing plate 100 can be horizontally arranged at the discharge end of the heading machine with the conveying belt by adjusting the extension of the output end of the air cylinder at the corresponding position; one end of the rotating shaft penetrates through the L-shaped connecting rod 111 at the corresponding position and is fixedly sleeved with a first belt wheel, the output end of the motor 500 is fixedly sleeved with a second belt wheel, and a belt is connected between the second belt wheel and the first belt wheel in a transmission manner, so that the motor 500 drives the second belt wheel to rotate, and the first belt wheel drives the rotating shaft at the corresponding position to rotate under the transmission action of the belt so as to rotate the driving roller 200; the two ends of the top surface of the i-shaped carrier 100 are both fixedly connected with the connecting plate 120, and the top surface of the connecting plate 120 away from one end of the i-shaped carrier 100 is fixedly connected with the bottom surface of the supporting plate 310 at the corresponding position, so that the supporting plates 310 at the two ends of the i-shaped carrier 100 can be stably fixed on the i-shaped carrier 100.
Two ends of the bottom surfaces of the two supporting plates 310 are fixedly connected with connecting seats, and connecting shafts fixedly inserted with the tensioning rollers 400 at corresponding positions are rotatably connected between the two connecting seats, so that the conveying belt can be driven under the rotation of the two driving rollers 200; the buffer piece 350 comprises an arc-shaped cylinder 351 fixedly connected with the supporting plate 310, an arc-shaped rod 352 is connected inside the arc-shaped cylinder 351 in a sliding mode, an arc-shaped spring is fixedly connected between the bottom end of the arc-shaped rod 352 and the inner bottom surface of the arc-shaped cylinder 351, the arc-shaped rod 352 and the arc-shaped cylinder 351 are matched, so that the second buffer roller 360 can move along an arc-shaped track to buffer the impact force of ores, and the impact force on two sides of the conveying belt is buffered through the contraction of the arc-shaped spring; one side of the top of the supporting frame 320 is fixedly connected with a positioning block 323, a shaft lever is fixedly inserted into the second buffer roller 360, one end of the shaft lever is rotatably connected with the top end of the arc-shaped rod 352 at the corresponding position, the other end of the shaft lever is rotatably connected with the positioning block 323 at the corresponding position through a ball hinge, the shaft lever can drive the second buffer roller 360 to rotate to assist in supporting and conveying ores during conveying of a conveying belt, and the shaft lever can also drive the second buffer roller 360 to rotate around the ball hinge at the position of the ball hinge and is used for reducing the impact force of the buffered ores; the bottom surface fixedly connected with sleeve pipe 322 of slider 321, the inside sliding connection of sleeve pipe 322 have with correspond position carriage 320 in bottom surface fixedly connected's slide bar, and buffer spring 340 cup joints in the sleeve pipe 322 and the two outside of slide bar to make buffer spring 340 shrink buffering ore impact force in vertical direction.
The working principle is as follows: when the ore on the tunneling machine is transferred to the conveyor belt through the conveyor, the motor 500 is started, the output end of the motor 500 drives the belt pulley II to rotate, the belt pulley II rotates through the belt pulley I on the belt pulley rotating shaft, so that the two driving rollers 200 are matched with the belt pulley to generate transmission to convey the ore on the top surface of the belt pulley, when the ore on the conveyor belt bumps up and down at the middle position of the belt pulley, the first buffer roller 330 drives the sliding blocks 321 at the two ends to slide in the corresponding position supporting frames 320, and the sliding blocks 321 move down to compress the buffer springs 340, buffer spring 340 slows down the ore impact force of jolting and producing on the conveyer belt through the shrink, be favorable to improving the stability that the ore was carried, when the ore was at the both sides extrusion conveyer belt of conveyer belt, arc pole 352 compression arc section of thick bamboo 351 arc spring, the arc spring slows down the impact force that the conveyer belt both sides received through the shrink, thereby make the ore smooth-going transport on the conveyer belt, and two 360 direction slopes of buffer roller arrange to one 330, thereby make two 360 direction extrusion conveyer belts of buffer roller to one 330, prevent that the ore from shifting out the conveyer belt in the both sides of conveyer belt in transportation process.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only, and various modifications, additions and substitutions as described for the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (8)
1. The coal conveying buffer device of the heading machine for coal mining comprises an I-shaped bearing plate (100), and is characterized in that four corners of the bottom surface of the I-shaped bearing plate (100) are fixedly connected with supporting legs (110), one side of each supporting leg (110) is fixedly connected with an L-shaped connecting rod (111), two adjacent L-shaped connecting rods (111) are rotatably connected with a driving roller (200) through a rotating shaft, a plurality of buffer mechanisms (300) are arranged above the I-shaped bearing plate (100) at equal intervals, each buffer mechanism (300) comprises a supporting plate (310), two ends of the middle part of each supporting plate (310) are fixedly connected with a supporting frame (320), a sliding block (321) is slidably connected inside each supporting frame (320), a first buffer roller (330) is rotatably connected between two adjacent sliding blocks (321), and a buffer spring (340) is fixedly connected between each sliding block (321) and the inner bottom surface of each supporting frame (320), the equal fixedly connected with bolster (350) in both ends of layer board (310), bolster (350) with correspond and be provided with between the position carriage (320) buffer roller two (360), wherein two the bottom surface of layer board (310) is provided with tensioning roller (400), and is a plurality of the transmission is connected with the conveyer belt between buffer roller (330), two drive rolls (200) and two tensioning rollers (400), wherein, two the equal fixedly connected with in corner of L shape connecting rod (111) is used for the drive to correspond position drive roll (200) pivoted motor (500).
2. The coal transporting buffer device of the heading machine for coal mining as claimed in claim 1, wherein a cylinder (112) is embedded and fixed on the bottom surface of the supporting leg (110), and the output end of the cylinder (112) is fixedly connected with a cushion block.
3. The coal conveying buffer device of the heading machine for coal mining according to claim 1, wherein one end of the rotating shaft penetrates through the L-shaped connecting rod (111) at the corresponding position and is fixedly sleeved with a first belt wheel, the output end of the motor (500) is fixedly sleeved with a second belt wheel, and a belt is in transmission connection between the second belt wheel and the first belt wheel.
4. The coal transportation buffer device of the heading machine for coal mining according to claim 1, wherein a connecting plate (120) is fixedly connected to both ends of the top surface of the I-shaped carrying plate (100), and the top surface of the connecting plate (120) facing away from one end of the I-shaped carrying plate (100) is fixedly connected to the bottom surface of the supporting plate (310) at the corresponding position.
5. The coal transportation buffer device of the heading machine for coal mining according to claim 1, wherein two ends of the bottom surface of the two support plates (310) are fixedly connected with connecting seats, and a connecting shaft which is fixedly inserted into the tensioning roller (400) at a corresponding position is rotatably connected between the two connecting seats.
6. The coal conveying buffer device of the heading machine for coal mining as claimed in claim 1, wherein the buffer member (350) comprises a cambered cylinder (351) fixedly connected with the supporting plate (310), a cambered rod (352) is slidably connected inside the cambered cylinder (351), and a cambered spring is fixedly connected between the bottom end of the cambered rod (352) and the inner bottom surface of the cambered cylinder (351).
7. The coal transporting buffer device of the heading machine for coal mining as claimed in claim 1, wherein a positioning block (323) is fixedly connected to one side of the top of the supporting frame (320), a shaft rod is fixedly inserted into the second buffer roller (360), one end of the shaft rod is rotatably connected to the top end of the arc-shaped rod (352) at the corresponding position, and the other end of the shaft rod is rotatably connected to the positioning block (323) at the corresponding position through a ball hinge.
8. The coal transportation buffer device of the heading machine for coal mining as claimed in claim 1, wherein a sleeve (322) is fixedly connected to the bottom surface of the sliding block (321), a sliding rod fixedly connected to the inner bottom surface of the support frame (320) at the corresponding position is slidably connected to the inside of the sleeve (322), and the buffer spring (340) is sleeved on the outer sides of the sleeve (322) and the sliding rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123418940.7U CN216429616U (en) | 2021-12-31 | 2021-12-31 | Coal conveying buffer device of heading machine for coal mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123418940.7U CN216429616U (en) | 2021-12-31 | 2021-12-31 | Coal conveying buffer device of heading machine for coal mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216429616U true CN216429616U (en) | 2022-05-03 |
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ID=81320864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123418940.7U Expired - Fee Related CN216429616U (en) | 2021-12-31 | 2021-12-31 | Coal conveying buffer device of heading machine for coal mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216429616U (en) |
-
2021
- 2021-12-31 CN CN202123418940.7U patent/CN216429616U/en not_active Expired - Fee Related
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