CN109736810B - Trolley pushing device for open coal mine coal mining equipment - Google Patents
Trolley pushing device for open coal mine coal mining equipment Download PDFInfo
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- CN109736810B CN109736810B CN201811632728.0A CN201811632728A CN109736810B CN 109736810 B CN109736810 B CN 109736810B CN 201811632728 A CN201811632728 A CN 201811632728A CN 109736810 B CN109736810 B CN 109736810B
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Abstract
The invention discloses a trolley pushing device for open coal mine coal mining equipment, which comprises a pushing trolley assembly, a platform welding assembly, a pushing oil cylinder, an upper left track component and an upper right track component, wherein the pushing trolley assembly is arranged on the platform welding assembly; the platform welding assembly comprises an installation guide rail and a welding foundation; the left upper track assembly and the right upper track assembly are respectively arranged above the two welding foundations; the pushing trolley assembly comprises a trolley frame, a stop block component, wheels and stop pin plates, wherein the trolley frame is arranged above the installation guide rail, two symmetrical lug plates are arranged above the trolley frame, the stop block component is arranged between the two lug plates, and the two wheels are arranged in the trolley frame; the pin blocking plate is fixed on the trolley frame behind the wheels, and the pushing oil cylinder is connected with the pin blocking plate. The device has compact structural design, saves the assembly space of the whole machine, is simple, labor-saving and quick to install, and has the advantages of super-strong bearing capacity and automatic resetting.
Description
Technical Field
The invention relates to the technical field of opencast coal mine equipment, in particular to a trolley pushing device for opencast coal mine coal mining equipment.
Background
At present, China has found that the coal reserves are about 1145 hundred million tons, and the coal reserves are ranked the third in the world except in the United states and Russia; however, China is a country which takes coal as main energy, and the ratio of coal in industrial and agricultural production and energy consumption is close to 70%; china is the first country of the world coal yield ranking, according to statistical data, the world coal yield is about 75.49 hundred million tons in 2017, and the coal yield of China is about 33.76 million tons, which is 44.7% of the total world yield. The statistical data of related institutions show that by the end of 2017, the number of nationwide coal mines is about 7600 more, the number of underground coal mines is 7200 more, and the number of open pit coal mines is about 400 more. With the rapid improvement of the open-pit mining equipment level in recent years, the open-pit coal mine in China develops rapidly, the technological level is remarkably improved, the coal yield of the open-pit coal mine breaks through 3 hundred million tons, the annual total yield is improved to be close to 10 percent from 5 percent, and China becomes a big open-pit coal mining country and a strong country.
The existing open pit coal mining process mainly comprises the following steps: 3 discontinuous process, continuous process and semi-continuous process, the mining process mainly comprises: the production characteristics of the open-pit coal mine, such as about 300-600 m mining depth, gentle slope, large mining depth and the like mean that a large amount of slope pressing coal exists in the open-pit coal mine, according to incomplete statistics, the slope pressing coal exceeds 2000 million tons every year in China, and the waste of coal resources is not easily caused by the slope pressing coal mining, while the traditional open-pit coal mining equipment is not suitable for the slope pressing coal mining, so a set of brand new mining equipment needs to be developed to meet the slope pressing coal mining.
Disclosure of Invention
The invention aims to solve the technical problems and provides a trolley pushing device for opencast coal mine coal mining equipment, which is compact in structural design, simple, labor-saving and quick to mount, saves the assembly space of the whole machine, and has the advantages of super-strong bearing capacity and automatic resetting.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a trolley pushing device for open coal mine coal mining equipment comprises a pushing trolley assembly, a platform welding assembly, a pushing oil cylinder, a left upper rail component and a right upper rail component; the platform welding assembly comprises an installation guide rail for placing the pushing trolley assembly and the pushing oil cylinder, and welding foundations with rectangular cross sections and arranged on two sides of the installation guide rail; the left upper track assembly and the right upper track assembly are respectively arranged above the two welding foundations; the pushing trolley assembly comprises a trolley frame, a stop block component, two wheels and a stop pin plate, wherein the trolley frame is arranged above the installation guide rail, two symmetrical lug plates are arranged above the trolley frame, the stop block component is arranged between the two lug plates, the two wheels are arranged in the trolley frame, and two ends of the two wheels are respectively connected with two sides of the trolley frame in a rotating manner; the pin blocking plate is fixed on the trolley frame behind the wheels, and the pushing oil cylinder is connected with the pin blocking plate.
Specific speaking, the dog subassembly is including the dog that wholly is L shape, the dog middle part is passed through otic placode round pin axle and is rotated the setting between two otic placodes, and the dog both ends respectively are equipped with a dog round pin axle, and one of them dog round pin epaxial be equipped with be used for realizing pushing away the balancing weight that whole dog subassembly automatic re-setting behind the hydro-cylinder transform direction.
Specifically speaking, the whole I-shaped cross section of the wheel is provided with bearing mounting holes at the edges of two axial ends of the wheel, the wheel is respectively provided with a bearing through the two bearing mounting holes, and the edge of the two axial ends of the wheel is also provided with a bearing gland used for pressing the bearing.
Preferably, an oil seal and an O-ring are sequentially arranged in the bearing gland, and the bearing gland realizes the fixation of the bearing gland at the two ends of the wheel through an M12 bolt and an NL12 gasket.
Furthermore, bearing holes at two ends of the wheel are respectively provided with a wheel shaft, and the wheel is rotatably connected by inserting the movable ends of the two wheel shafts into the trolley frame; the wheel shaft is fixed on the trolley frame through an M16 bolt and an NL16 gasket, so that the axial positioning of the wheel assembly is realized; and a wheel oil injection nozzle is also arranged at the position of the trolley frame, which is provided with the wheel shaft, and is used for injecting lubricating grease into the wheel.
Furthermore, the tire tread is provided with an annular limiting bulge, and the edges of the upper sides of the limiting bulge facing the direction of the two wheel axles are respectively provided with a copper sleeve for protection, and the copper sleeves are L-shaped.
Furthermore, the pin baffle is fixed on the trolley frame through an M20 bolt and a spring washer; the front end of the pushing oil cylinder is connected to the pin baffle through a pushing oil cylinder pin shaft to realize the fixation of the pushing oil cylinder and the pushing trolley assembly, and the rear end of the pushing oil cylinder is fixed to the platform welding assembly through another pushing oil cylinder pin shaft.
Preferably, a pin shaft oil injection nozzle is arranged on the lug plate pin shaft, and lubricating grease is injected into the oil injection nozzle.
Preferably, the whole trolley frame is cuboid and is formed by welding high-strength Q420 steel.
Compared with the prior art, the invention has the following beneficial effects:
(1) the applicant of the invention develops and designs a set of highwall coal-pressing mining equipment in combination with the present situation of highwall coal-pressing mining construction process, and innovatively provides a new mining process and a new mining flow, the trolley pushing device can be one of key components of the mining equipment, and by means of the trolley pushing device designed at this time, the matched open-pit side mining complete equipment can quickly push a belt conveying unit (one of complete equipment) to a coal face, and the belt conveying unit can be timely withdrawn from the face to a mobile platform (one of complete equipment) during withdrawal, so that unmanned and mechanical mining of the side coal pressing face is realized, the coal yield of an open-pit coal mine is increased, new economic benefits are created for coal enterprises, the recovery rate of the whole mine coal resource is also improved, and resource waste is avoided.
(2) The pushing device comprises a pushing trolley assembly, a platform welding assembly, a pushing oil cylinder, an upper left rail component and an upper right rail component, and the core component of the pushing trolley assembly is high in integration level and compact in overall structure, so that the assembling space of the whole machine can be effectively saved, and the pushing trolley assembly is simple, labor-saving and rapid to install.
(3) The design of the pushing device enables the pushing device to have super-strong bearing capacity, the design bearing strength can meet the requirements of normal mining operation load, collapse in a roadway of a working face and super-large load during self rescue of the whole set of mining equipment after the equipment is buried. The trolley frame is formed by welding new material high-strength steel plates, the wheels are subjected to strengthening treatment by adopting a special process, lubricating grease is filled into the wheels, effective lubrication of a bearing is ensured, increase of pushing resistance of the pushing device due to the fact that the wheels are clamped due to improper lubrication is avoided, and the whole pushing device has super-strong bearing capacity and cannot increase moving difficulty.
(4) The counterweight mechanism is arranged on the stop block assembly in the pushing device, so that the automatic resetting of the stop block assembly after the pushing oil cylinder changes the running direction can be realized, the manual operation time is saved, and the operation efficiency of the pushing device is improved.
Drawings
FIG. 1 is a front view of the overall structure;
FIG. 2 is a top view of the overall structure;
FIG. 3 is a sectional view taken along line A-A;
FIG. 4 is a block assembly view;
FIG. 5 is a working direction diagram of the trolley pushing device.
Wherein, the names corresponding to the reference numbers are:
1-trolley frame, 2-block component, 3-lug plate pin shaft, 4-pin shaft oil injection nozzle, 5-block pin plate, 6-spring washer, 7-M20 bolt, 8-pushing cylinder pin shaft, 9-bearing gland, 10-wheel shaft, 11-wheel, 12-copper sleeve, 13-oil seal, 14-bearing, 15-O-shaped sealing ring, 16-M16 bolt, 17-NL16 gasket, 18-M12 bolt, 19-NL12 gasket, 20-platform welding component assembly, 21-left upper rail component, 22-right upper rail component, 23-pushing cylinder, 24-M30 bolt, 25-NL30 gasket, 26, rail component connecting pin shaft, 27-block, 28-block pin shaft and 29-balancing weight.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
The embodiment is a trolley pushing device which is a key component in a set of slope coal pressing mining equipment and is developed and designed in combination with the current situation of the slope coal pressing mining construction process. The device can realize mechanized side-slope coal pressing and unmanned mining of a working face by depending on a whole set of mining equipment, thereby not only increasing the coal yield of an open-pit coal mine, creating new economic benefits for coal enterprises, but also improving the recovery rate of coal resources of the whole mine and avoiding resource waste.
Specifically, referring to fig. 1 to 5, the trolley pushing device for opencast coal mine coal mining equipment comprises a pushing trolley assembly, a platform welding assembly 20, a pushing cylinder 23, a left upper rail component 21 and a right upper rail component 22.
The platform welding assembly 20 is used as an outer frame and an installation foundation structure of the device, and comprises an installation guide rail for placing a pushing trolley assembly and a pushing oil cylinder and welding foundations with rectangular cross sections arranged on two sides of the installation guide rail.
The left upper rail assembly 21 and the right upper rail assembly 22 are both plate-shaped structures, and are fixed above the two welding bases through M30 bolts 24, NL30 gaskets 25, and pins 26, respectively, as the upper horizontal plane of the whole trolley pushing device, wherein the specific installation modes of the bolts, the gaskets, and the pins are the same as those in the prior art, and are not repeated herein (the same below). In order to facilitate the installation of the pushing trolley assembly, the edges of one side of the left upper rail component 21 and the right upper rail component 22 close to the pushing trolley assembly are provided with upward convex parts, and the parts of the installation guide rails symmetrical to the side are also provided with step-shaped parts with the same structure.
The pushing trolley assembly comprises a trolley frame 1, a stop block component 2, wheels 11 and a stop pin plate 5. The trolley frame is integrally rectangular and is formed by welding high-strength Q420 steel, and the trolley frame is arranged above the mounting rail. The stop block assembly 2 comprises a stop block 27 which is L-shaped integrally, the middle of the stop block is rotatably arranged between two lug plates through a lug plate pin shaft 3, two ends of the stop block are respectively provided with a stop block pin shaft 28, and one of the stop block pin shafts is provided with a balancing weight 29, so that the automatic reset of the stop block assembly after the pushing oil cylinder changes the operation direction can be realized, the manual operation time is saved, and the operation efficiency of the pushing device is improved. Two symmetrical lug plates are arranged above the trolley frame, the stop block is arranged between the two lug plates, a pin shaft oil injection nozzle 4 is arranged on the lug plate pin shaft 3, and lubricating grease is injected into the oil injection nozzle. The utility model discloses a wheel structure, including wheel 11, two bearing mounting holes, bearing 14, and wheel axial both ends edge 9, wheel 13 and O shape sealing washer 15 are equipped with in the bearing gland in proper order, and this bearing gland realizes its fixed at wheel 11 both ends through M12 bolt 18, NL12 gasket 19 that the wheel structure is the same, and its cross-section is whole to be I-shaped, and wheel axial both ends edge is equipped with the bearing mounting hole, and the wheel is installed a bearing 14 respectively through these two bearing mounting holes, and wheel axial both ends edge still is equipped with the bearing gland 9 that is used for pushing down the bearing, be equipped with oil blanket 13 and O shape sealing washer 15 in the bearing gland in proper order, and this bearing gland realizes its fixed at wheel 11 both ends. The bearing 14 holes at the two ends of the wheel 11 are respectively provided with a wheel shaft 10, and the wheel 11 realizes the rotating connection of the wheel by inserting the movable ends of the two wheel shafts into the trolley frame 1; in detail, the wheel axle 10 is fixed on the trolley frame 1 through an M16 bolt 16 and an NL16 gasket 17, so that the wheel assembly is axially positioned; and a wheel oil nozzle is further arranged at the position of the trolley frame 1 where the wheel shaft 10 is installed and used for filling lubricating grease into the wheel 11.
The tire surface of the wheel 11 is provided with an annular limiting bulge, and the upper part of the limiting bulge is positioned between the left upper rail component 21 and the right upper rail component 22, and the lower part of the limiting bulge is positioned on the mounting guide rail and is symmetrical to the left upper rail component 21 and the right upper rail component 22 when viewed from the cross section. The edges of the limiting bulges, which face to the upper sides of the two wheel shafts 11, are respectively provided with a copper sleeve 12 with a protection function, and the copper sleeves are L-shaped and used for preventing the wheels from colliding with the left upper track assembly 21, the right upper track assembly 22 and the mounting guide rail.
The pin baffle 5 is fixed behind the trolley frame through an M20 bolt 7 and a spring washer 6; the front end of the pushing cylinder 23 is connected to the pin baffle through a pushing cylinder pin shaft 8 to realize the fixation of the pushing cylinder and the pushing trolley assembly, and the rear end of the pushing cylinder is fixed to the platform welding assembly 20 through another pushing cylinder pin shaft.
The core component pushing trolley assembly in the trolley pushing device is compact in structure, can be assembled with other components after being assembled by self, saves the assembly space of the whole machine, and is simple, labor-saving and rapid to install.
In addition, the embodiment also provides an assembling method of the trolley pushing device, which specifically comprises the following steps:
the first step is as follows: firstly, respectively installing 2 copper sleeves 12 at corresponding installation positions on two sides of a wheel 10, paying attention to the matching relation among parts, respectively installing 2 bearings 14 into bearing installation holes on two sides of the wheel 11, respectively installing 1 oil seal 13 and 1O-shaped seal ring 15 into 1 bearing gland 9, respectively installing 2 bearing glands 9 with the oil seals 13 and the O-shaped seal rings 15 installed into two sides of the wheel 11, fixing the bearing glands 9 on the wheel 11 by using M12 bolts 18 and NL12 gaskets 19, and similarly completing the assembly of the other 1 wheel component;
the second step is that: selecting 1 wheel assembly assembled in the first step, placing the wheel assembly into a trolley frame 1, respectively inserting 2 wheel axles 10 into bearing holes at two sides of the trolley frame 1 through mounting holes at two sides of the wheel assembly, fixing the wheel axles 10 onto the trolley frame 1 by using M16 bolts 16 and NL16 gaskets 17, realizing axial positioning of the wheel assembly, paying attention to adjustment of bearing clearance during assembly, completing assembly of the other 1 wheel assembly and the trolley frame 1 in the same way, finally respectively installing 4 wheel oil nozzles into corresponding mounting holes of 4 wheel axles 10, and filling lubricating grease into the wheels 11;
the third step: assembling the block component 2 and the trolley frame 1, respectively installing 2 block pin shafts 28 into corresponding installation holes of a block 27, installing a counterweight mechanism 29 on one block pin shaft 28 to complete the assembly of the block component 2, then placing the block component 2 in lug plates at two sides above the trolley frame 1, installing a block pin shaft 3 after aligning a through hole between the block component 2 and the lug plate of the trolley frame 1, fixing a block pin plate 5 on the trolley frame 1 by using an M20 bolt 7 and a spring washer 6, finally screwing a pin shaft oil injection nozzle 4 into a threaded hole on the block pin shaft 3, and injecting lubricating grease, thus completing the assembly of the pushing trolley assembly;
the fourth step: putting the pushing trolley assembly completed in the first three steps on corresponding mounting guide rails at the bottom of the platform welding part assembly 20, connecting the front end of a pushing oil cylinder 23 to the pushing trolley assembly through a pushing oil cylinder pin shaft 8, and connecting the rear end of the pushing oil cylinder 23 to the platform welding part assembly 20 through a pushing oil cylinder pin shaft 8;
the fifth step: and respectively fixing the left upper rail assembly 21 and the right upper rail assembly 22 on the platform welding assembly 20 through M30 bolts 24, NL30 gaskets 25 and pin shafts 26 to complete the assembly of the trolley pushing device.
After the trolley pushing device is assembled, as shown in fig. 3, the lower parts of the limiting protrusions of 2 wheels 11 of the pushing device are in contact with a rail plane on a platform welding part assembly 20, the left upper part of the limiting protrusions is in contact with the rail plane on a left upper rail component 21, the right upper part of the limiting protrusions is in contact with the rail plane on a right upper rail component 22, and the wheels 11 of the pushing device linearly move on 4 rail planes formed by the platform welding part assembly 20, the left upper rail component 21 and the right upper rail component 22 under the action of a pushing cylinder 23. The specific movement process is as shown in figure 5 (the upper part is leftward propulsion, and the lower part is rightward propulsion), and during propulsion: the block assembly 2 is placed in the upper direction of fig. 5, and the pushing oil cylinder 23 transmits the pushing force to the pushing block (such as the vertical edge of the block shown in fig. 5) through the pushing device, so as to push the transport unit trolley to advance towards the pushing direction; when withdrawing: the block component 2 is arranged in the direction below the figure 5, and the pushing oil cylinder 23 transmits the withdrawing force to the pushing block through the pushing device, so as to push the transport unit trolley to advance towards the withdrawing direction; dog subassembly 2 can realize the free adjustment as shown in fig. 5 two kinds of positions around dog round pin axle 3, has arranged counter weight mechanisms such as balancing weight on dog subassembly 2, can realize pushing cylinder 23 transform the automatic re-setting of running direction back dog subassembly 2, has saved manual operation time, has improved pusher gear's operating efficiency.
By means of the trolley pushing device designed at this time, the matched open-pit slope mining complete equipment can quickly push the belt conveying unit (one of complete equipment devices) to the coal face, and the belt conveying unit can be timely withdrawn from the face to the mobile platform (one of complete equipment devices) during withdrawal, so that unmanned and mechanical mining of the slope coal-pressing face is realized. Because the mining process of the set of edge-slope coal mining equipment adopts a roadway support-free scheme, the trolley pushing device has super-strong bearing capacity, the design bearing strength meets the requirements of collapse in a roadway of a working face besides normal mining operation load, and the equipment is buried to meet the super-large load of the whole set of mining equipment during self rescue, so that the trolley frame is formed by welding new-material high-strength steel plates, the wheels are subjected to special process strengthening treatment, lubricating grease is injected into the wheels, effective lubrication of bearings is ensured, and the pushing resistance of the pushing device is prevented from being increased due to the fact that the wheels are clamped due to the fact that the lubricating is not in place. The counterweight mechanism is arranged on the stop block assembly in the pushing device, so that the automatic resetting of the stop block assembly after the direction of the pushing oil cylinder is changed can be realized, the manual operation time is saved, and the operation efficiency of the pushing device is improved.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (8)
1. A trolley pushing device for opencast coal mine coal mining equipment is characterized by comprising a pushing trolley assembly, a platform welding assembly (20), a pushing oil cylinder (23), an upper left rail component (21) and an upper right rail component (22); the platform welding assembly (20) comprises an installation guide rail for placing the pushing trolley assembly and the pushing oil cylinder and welding foundations with rectangular cross sections, wherein the welding foundations are arranged on two sides of the installation guide rail; the left upper rail assembly (21) and the right upper rail assembly (22) are respectively arranged above the two welding foundations; the pushing trolley assembly comprises a trolley frame (1), a stop block component (2), wheels (11) and stop pin plates (5), the trolley frame is arranged above the installation guide rail, two symmetrical lug plates are arranged above the trolley frame, the stop block component is arranged between the two lug plates, the stop block component (2) comprises a stop block (27) which is integrally L-shaped, the middle part of the stop block is rotatably arranged between the two lug plates through lug plate pin shafts (3), two ends of the stop block are respectively provided with a stop block pin shaft (28), and one stop block pin shaft is provided with a balancing weight (29) for realizing automatic reset of the whole stop block component after the pushing oil cylinder is changed in direction; two wheels are arranged in the trolley frame, and two ends of the two wheels are respectively connected with two sides of the trolley frame in a rotating way; the pin baffle (5) is fixed on the trolley frame (1) behind the wheels, and the pushing oil cylinder (23) is connected with the pin baffle.
2. The trolley pushing device for the open pit coal mine mining equipment according to claim 1, wherein the cross section of the wheel (11) is integrally I-shaped, bearing mounting holes are formed in the edges of two axial ends of the wheel, a bearing (14) is respectively mounted on the wheel through the two bearing mounting holes, and bearing glands (9) for pressing the bearings are further arranged on the edges of the two axial ends of the wheel.
3. The trolley pushing device for the open pit coal mine mining equipment is characterized in that an oil seal (13) and an O-shaped sealing ring (15) are sequentially arranged in the bearing gland, and the bearing gland is fixed at the two ends of the wheel (11) through an M12 bolt (18) and an NL12 gasket (19).
4. A trolley moving device for opencast coal mine mining equipment according to claim 3, characterized in that a wheel axle (10) is arranged in each bearing (14) hole at the two ends of the wheel (11), and the wheel (11) is rotatably connected by inserting the movable ends of the two wheel axles into the trolley frame (1); the wheel shaft (10) is fixed on the trolley frame (1) through an M16 bolt (16) and an NL16 gasket (17), so that the axial positioning of the wheel assembly is realized; and a wheel oil injection nozzle is further arranged at the position of the trolley frame (1) where the wheel shaft (10) is installed and used for injecting lubricating grease into the wheel (11).
5. The trolley pushing device for the open coal mine mining equipment according to claim 4, characterized in that the tread of the wheel (11) is provided with an annular limiting bulge, and the upper side edges of the limiting bulge facing to the direction of the two wheel axles (10) are respectively provided with a protective copper sleeve (12), and the copper sleeves are L-shaped.
6. The trolley pushing device for the open pit coal mine mining equipment according to any one of claims 2 to 5, wherein the pin baffle (5) is fixed on the trolley frame through an M20 bolt (7) and a spring washer (6); the front end of the pushing oil cylinder (23) is connected to the pin baffle through a pushing oil cylinder pin shaft (8) to realize the fixation of the pushing oil cylinder and the pushing trolley assembly, and the rear end of the pushing oil cylinder is fixed to the platform welding assembly (20) through another pushing oil cylinder pin shaft.
7. The trolley pushing device for the open pit coal mine mining equipment according to claim 6, wherein a pin shaft oil injection nozzle (4) is arranged on the lug plate pin shaft (3), and lubricating grease is injected into the oil injection nozzle.
8. The trolley pushing device for the open pit coal mine mining equipment according to claim 7, wherein the trolley frame (1) is integrally rectangular and is formed by welding high-strength Q420 steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811632728.0A CN109736810B (en) | 2018-12-29 | 2018-12-29 | Trolley pushing device for open coal mine coal mining equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811632728.0A CN109736810B (en) | 2018-12-29 | 2018-12-29 | Trolley pushing device for open coal mine coal mining equipment |
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| CN109736810A CN109736810A (en) | 2019-05-10 |
| CN109736810B true CN109736810B (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811632728.0A Active CN109736810B (en) | 2018-12-29 | 2018-12-29 | Trolley pushing device for open coal mine coal mining equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112761641B (en) * | 2021-01-11 | 2024-02-06 | 中国煤炭科工集团太原研究院有限公司 | Pushing vehicle and open pit coal mining equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2479213Y (en) * | 2000-12-29 | 2002-02-27 | 煤炭科学研究总院太原分院 | Self-moving device for bridge-type elevating conveyor |
| CN205437711U (en) * | 2015-12-31 | 2016-08-10 | 张家口第一煤矿机械有限公司 | Horizontal dress jar machine |
| CN207374417U (en) * | 2017-11-03 | 2018-05-18 | 内蒙古圣达天地科技有限公司 | A kind of fully mechanized mining is integrated from telephone-moving structure with the auxiliary fortune equipment vehicle group of hydraulic pressure automatic moving type |
| CN207598269U (en) * | 2017-11-15 | 2018-07-10 | 郑东风 | One kind adopts face crossheading circulatory self-moving advance support system and track from shifting system |
-
2018
- 2018-12-29 CN CN201811632728.0A patent/CN109736810B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2479213Y (en) * | 2000-12-29 | 2002-02-27 | 煤炭科学研究总院太原分院 | Self-moving device for bridge-type elevating conveyor |
| CN205437711U (en) * | 2015-12-31 | 2016-08-10 | 张家口第一煤矿机械有限公司 | Horizontal dress jar machine |
| CN207374417U (en) * | 2017-11-03 | 2018-05-18 | 内蒙古圣达天地科技有限公司 | A kind of fully mechanized mining is integrated from telephone-moving structure with the auxiliary fortune equipment vehicle group of hydraulic pressure automatic moving type |
| CN207598269U (en) * | 2017-11-15 | 2018-07-10 | 郑东风 | One kind adopts face crossheading circulatory self-moving advance support system and track from shifting system |
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