CN114802498A - Mining portal support carrier taking explosion-proof battery as power - Google Patents
Mining portal support carrier taking explosion-proof battery as power Download PDFInfo
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- CN114802498A CN114802498A CN202210506424.XA CN202210506424A CN114802498A CN 114802498 A CN114802498 A CN 114802498A CN 202210506424 A CN202210506424 A CN 202210506424A CN 114802498 A CN114802498 A CN 114802498A
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- proof battery
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- 238000005065 mining Methods 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 239000000839 emulsion Substances 0.000 claims abstract description 28
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/06—Endless track vehicles with tracks without ground wheels
- B62D55/065—Multi-track vehicles, i.e. more than two tracks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/10—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of fluid gearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P7/00—Securing or covering of load on vehicles
- B60P7/06—Securing of load
- B60P7/135—Securing or supporting by load bracing means
Abstract
The invention discloses a mining portal support carrier taking an explosion-proof battery as power, which comprises a vehicle body platform, a bearing mechanism, a rotary clamping device, an emulsion pump station system and a power output device, wherein a plurality of travelling mechanisms are installed at the lower end of the vehicle body platform, the bearing mechanism is fixedly connected to the vehicle body platform, and the rotary clamping device is installed at the upper end of the bearing mechanism. The invention has two implementation modes of the single motor and the double motors, the implementation mode of the single motor saves cost and space, the explosion-proof battery is adopted to provide power for the carrier, the energy is saved, the environment is protected, the noise is low, when the working mode adopts remote control operation, the man-machine separation operation is carried out, and the safety is high. The power system can be switched according to the working condition requirement by the dual-motor implementation mode, the energy efficiency is high, the battery endurance time is long, the energy is saved, the environment is protected, and the noise is low; the four crawler belts walk, so that the mobility and the trafficability are flexible and good; the door type support is operated in a remote control mode, is separated from a human machine, is safe and efficient, and can realize mechanical and automatic operation of carrying the door type support.
Description
Technical Field
The invention belongs to the technical field of mining carriers, and particularly relates to a mining portal support carrier taking an explosion-proof battery as power.
Background
With the modernized construction of mines, technical equipment is upgraded, and in the reinforcing support of working face crossheading roadway, the portal type support is widely applied, so that remarkable economic and safety benefits are obtained, various transport vehicles are produced at the same time, but the transport vehicles generally adopt an explosion-proof diesel engine as a power source, and the environment in the roadway becomes worse due to the generated tail gas and noise.
Therefore, in order to adapt to the development of the automatic and intelligent industries in the coal industry, promote energy conservation and emission reduction, and develop new energy technologies, it is necessary to provide a mining portal frame carrier powered by an explosion-proof battery.
Disclosure of Invention
The invention aims to provide a mining portal support carrier taking an explosion-proof battery as power to solve the problems.
In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:
the utility model provides a mining portal frame carrier for explosion-proof battery is power, includes vehicle body platform, bears mechanism, rotary clamping device, emulsion pump station system and power take off, a plurality of running gear are installed to vehicle body platform's lower extreme, bear mechanism fixed connection on vehicle body platform, rotary clamping device installs the upper end at bearing the mechanism, rotary clamping device's function is including rotatory and pressing from both sides tightly, emulsion pump station system installs on vehicle body platform, the explosion-proof battery box of one side fixedly connected with of emulsion pump station system, power take off installs on vehicle body platform, power take off and explosion-proof battery box electric connection, power take off can provide power for running gear, emulsion pump station system, bearing mechanism and rotary clamping device.
As a further improvement of the invention, the number of the travelling mechanisms is two.
As a further improvement of the present invention, the running gear includes a pair of crawler running gears.
As a further improvement of the invention, the bearing mechanism is positioned right above one of the travelling mechanisms, so that the supporting strength of the bearing mechanism and the rotary clamping device can be ensured.
As a further improvement of the present invention, the vehicle structural style is one of a dual motor structure and a single motor structure.
As a further improvement of the invention, the power output device with the double-motor structure comprises a working mechanism hydraulic power device and a travelling mechanism hydraulic power device, wherein the working mechanism hydraulic power device is positioned between the bearing mechanism and the emulsion pump station system, and the travelling mechanism hydraulic power device is positioned on one side of the explosion-proof battery box, which is far away from the emulsion pump station system.
As a further improvement of the invention, the single-motor structure can be used at any position of the power output device with the double-motor structure to provide a power source for the whole vehicle.
As a further improvement of the invention, the power output object of the working mechanism hydraulic power device comprises a bearing mechanism, an emulsion pump station system and a rotary clamping device, and the power output object of the travelling mechanism hydraulic power device comprises a travelling mechanism.
As a further improvement of the invention, the emulsion pump station system and the explosion-proof battery box are both positioned right above one of the travelling mechanisms, so that the supporting strength of the emulsion pump station system and the explosion-proof battery box can be ensured.
As a further development of the invention, the power take-off comprises a hydraulic power system which is mounted at the end of the body platform remote from the rotary clamping device.
As a further improvement of the invention, the carrier further comprises a cab assembly, wherein a remote control system is arranged on the cab assembly, and the cab assembly is matched with a matched remote controller to realize remote control of the carrier.
As a further improvement of the present invention, the cab assembly includes a main cab and a sub-cab, which are respectively mounted at both ends of the vehicle body platform.
Compared with the prior art, the invention has the following advantages:
1. the bracket carrier provided by the invention adopts four-crawler walking, four-crawler all-wheel drive, small ground pressure, large driving force and good trafficability, and can adapt to various complex road conditions;
2. the invention adopts the explosion-proof battery to provide a power supply for transportation, and has the advantages of energy saving, environmental protection, low noise and high energy utilization efficiency.
3. The power system can adopt a single motor system or a double motor system, and can meet the requirements of customers on different working conditions.
4. The invention adopts a double-motor system and is matched with a double hydraulic pump to form two independent hydraulic power systems which respectively drive corresponding working mechanisms, and the intelligent switching is carried out according to the working condition requirements, so that the energy consumption is reduced, the energy utilization efficiency is improved, and the battery has long endurance time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mining portal support truck powered by an explosion-proof battery in embodiment 1 of the present invention;
fig. 2 is a top view of a mining portal frame carrier powered by an explosion-proof battery according to embodiment 1 of the present invention;
fig. 3 is a schematic view of a mining portal frame carrier powered by an explosion-proof battery in an embodiment 1 of the present invention in a use state;
fig. 4 is a schematic structural view of a mining portal frame truck powered by an explosion-proof battery in embodiment 2 of the present invention.
In the figure: 1. the device comprises a cab component, 2, a bearing mechanism, 3, a rotary clamping device, 4, an emulsion pump station system, 5, an explosion-proof battery box, 6, a remote control system, 7, a working mechanism hydraulic power device, 8, a vehicle body platform, 9, a traveling mechanism, 10 and a traveling mechanism hydraulic power device.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The present invention is not limited to the embodiments, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.
Example 1
The invention discloses a mining portal support carrier taking an explosion-proof battery as power, which comprises a cab assembly 1, a bearing mechanism 2, a rotary clamping mechanism 3, an emulsion pump station system 4, an explosion-proof battery box 5, a remote control system 6, a working mechanism hydraulic power device 7, a vehicle body platform 8, a travelling mechanism 9 and a travelling mechanism hydraulic power device 10, and is shown in the figures 1 to 2.
Considering that the carrier is not easy to turn around in a roadway, the carrier is designed with three operation modes of front driving, rear driving and wireless remote control. The cab assembly 1 comprises a main cab and an auxiliary cab, and is arranged at two ends of the vehicle body platform 8, and a set of control mechanism is respectively arranged in the main cab and the auxiliary cab to realize front-back bidirectional driving. The remote control system 6 comprises a remote control transmitter, a wireless receiver and an electromagnetic valve, the electromagnetic valve is connected to a multi-way valve of the hydraulic system, signals are given out through the remote control transmitter and the wireless receiver, the working state of the carrier is controlled, the walking and the working action of the vehicle are remotely controlled, and the safety is improved.
The bearing mechanism 2, the emulsion pump station system 4, the working mechanism hydraulic power device 7, the explosion-proof battery box 5 and the traveling mechanism hydraulic power device 10 are all arranged above the vehicle body platform 8. The explosion-proof battery box 5 and the traveling mechanism hydraulic power device 10 are arranged on one side of the main cab.
In consideration of the using environment and the working characteristics of the carrier, the carrier adopts an energy-saving and environment-friendly clean energy explosion-proof battery as a power supply, a power system adopts double-motor drive, the power supply is provided by an explosion-proof battery box 5, a plurality of explosion-proof batteries are arranged in the explosion-proof battery box 5, and two sets of independent hydraulic power devices are driven, wherein each hydraulic power device comprises a working mechanism driving hydraulic power device 7 and a travelling mechanism hydraulic power device 10.
The working mechanism hydraulic power device 7 is powered by the explosion-proof battery box 5, drives an independent explosion-proof motor and a hydraulic pump to form a power unit and provides power for the bearing mechanism 2 and the emulsion pump station system 4 of the carrier; the walking driving hydraulic power device 10 is supplied with power through the explosion-proof battery box 5, drives an independent explosion-proof motor and a hydraulic pump to form a power unit, and provides hydraulic power for a walking mechanism 9 of the carrier. The explosion-proof battery box 5 is provided with a charging interface, and when the cab instrument displays insufficient electric quantity, the explosion-proof battery box 5 can be charged at a charging point.
The bearing mechanism 2 is connected with the vehicle body platform 8, and the bearing mechanism 2 is an operation device for carrying the portal type support and has a lifting function; the upper part of the bearing mechanism 2 is provided with a rotary clamping device 3 which has the functions of rotation, clamping and the like, and the support can be adjusted and stabilized when the portal support is carried.
The emulsion pump station system 4 hydraulic motor, emulsion pump, emulsion case and hydraulic line constitute, and hydraulic motor adopts the flange to install on the emulsion pump, drives hydraulic motor and drives emulsion pump work by operating device hydraulic power unit 7, provides emulsion power for when carrying the support lift.
The traveling mechanism 9 comprises four crawler traveling mechanisms, the four crawler traveling mechanisms are arranged in parallel in a front row and a rear row, and the crawler traveling mechanisms are connected with the vehicle body platform 8 through two groups of connecting mechanisms. The four crawler traveling mechanisms are symmetrically distributed, so that the space at the bottom of the vehicle is increased, the vehicle can adapt to various complex road conditions, the grounding area is increased, the weight distribution of the vehicle body is optimized, and the stability of the vehicle body is improved.
In conclusion, the explosion-proof battery is used as a power supply to drive the dual-motor system, the power system can be switched according to the requirements of working conditions, the energy efficiency is high, the battery has long endurance time, and the energy-saving, environment-friendly and low-noise effects are achieved; the four crawler belts walk, so that the mobility and the trafficability are flexible and good; the door type support is operated in a remote control mode, is separated from a human machine, is safe and efficient, and can realize mechanical and automatic operation of carrying the door type support.
Referring to fig. 3, the door-type support can be clamped and lifted up and can be rotated to adjust the angle in a working state.
As can be seen from example 1, the present invention has the following advantageous effects:
1. when the invention is used, the cab and the remote control device are arranged at the front and the rear of the vehicle body, so that the vehicle can be operated and controlled, and when the vehicle travels and works, the remote control operation is used, so that man-machine separation is realized, and the safety of personnel is ensured;
2. the bracket carrier provided by the invention adopts four-crawler walking, four-crawler all-wheel drive, small ground pressure, large driving force and good trafficability, and can adapt to various complex road conditions;
3. the invention adopts the explosion-proof battery to provide a power supply for transportation, and has the advantages of energy saving, environmental protection, low noise and high energy utilization efficiency.
4. The invention adopts a double-motor system and is matched with a double hydraulic pump to form two independent hydraulic power systems which respectively drive corresponding working mechanisms, and the intelligent switching is carried out according to the working condition requirements, so that the energy consumption is reduced, the energy utilization efficiency is improved, and the battery has long endurance time.
Example 2
Referring to fig. 4, the conventional explosion-proof diesel engine power system is abandoned by the carrier, an energy-saving and environment-friendly clean energy explosion-proof battery is used as a power supply, the output voltage of an explosion-proof battery box 5 is stable, the power supply is provided for an explosion-proof motor of the hydraulic power system, a main pump of the hydraulic system and the explosion-proof motor form a power unit, the hydraulic power system is installed at one end of a vehicle body platform 8, which is far away from a rotary clamping device 3, and the hydraulic power system can provide power for a travelling mechanism 9, an emulsion pump station system 4, a bearing mechanism 2 and the rotary clamping device 3. The single motor structure can be used at any position of the double-motor structure power output device to provide a power source for the whole vehicle.
As can be seen from example 2, the present invention has the following advantageous effects:
the single-motor implementation mode saves cost and space, adopts the explosion-proof battery to provide power for the carrier, and is energy-saving, environment-friendly and low in noise, and when the working mode adopts remote control operation, man-machine separation operation is performed, and safety is high.
Meanwhile, the four-crawler all-wheel drive vehicle has the advantages of small ground pressure, large driving force and good trafficability, and can adapt to various complex road conditions; the anti-explosion battery is adopted to provide a power supply for carrying, and the anti-explosion battery has the advantages of energy conservation, environmental protection, low noise, high energy utilization efficiency and the like.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a mining portal frame carrier that explosion-proof battery is power which characterized in that includes:
the lower end of the vehicle body platform (8) is provided with a plurality of travelling mechanisms (9);
the bearing mechanism (2) is fixedly connected to the vehicle body platform (8);
the rotary clamping device (3) is arranged at the upper end of the bearing mechanism (2), and the functions of the rotary clamping device (3) comprise rotation and clamping;
the emulsion pump station system (4) is installed on the vehicle body platform (8), and one side of the emulsion pump station system (4) is fixedly connected with an explosion-proof battery box (5);
the power output device is installed on the vehicle body platform (8) and electrically connected with the explosion-proof battery box (5), and can provide power for the traveling mechanism (9), the emulsion pump station system (4), the bearing mechanism (2) and the rotary clamping device (3).
2. The mining portal carriage truck powered by explosion-proof batteries according to claim 1, characterized in that said travelling mechanisms (9) are two in number.
3. The mining portal frame trolley powered by explosion-proof batteries according to claim 1 or 2, characterized in that said travelling mechanism (9) comprises a pair of crawler travelling mechanisms.
4. The mining portal carriage truck powered by explosion-proof batteries according to claim 1, characterized in that said carrying mechanism (2) is located directly above one of said travelling mechanisms (9).
5. The explosion-proof battery-powered mining portal support cart of claim 1, wherein said vehicle is configured in one of a dual-motor configuration and a single-motor configuration.
6. The mining portal support carrier with the explosion-proof battery as the power source according to claim 5, characterized in that the power output device of the double-motor structure comprises a working mechanism hydraulic power device (7) and a traveling mechanism hydraulic power device (10), wherein the working mechanism hydraulic power device (7) is positioned between the bearing mechanism (2) and the emulsion pump station system (4), and the traveling mechanism hydraulic power device (10) is positioned on one side of the explosion-proof battery box (5) far away from the emulsion pump station system (4).
7. The mining portal frame carrier with explosion-proof battery as power of claim 5, wherein the single-motor structure can be used at any position of the power output device of the double-motor structure to provide power source for the whole vehicle.
8. The mining portal frame carrier with explosion-proof battery as power of claim 6, characterized in that the power output objects of the working mechanism hydraulic power device (7) comprise a bearing mechanism (2), an emulsion pump station system (4) and a rotary clamping device (3), and the power output objects of the travelling mechanism hydraulic power device (10) comprise a travelling mechanism (9).
9. The mining portal carriage vehicle powered by an explosion-proof battery according to claim 1, characterized in that the emulsion pump station system (4) and the explosion-proof battery box (5) are both located directly above one of the travelling mechanisms (9).
10. The mining portal carriage vehicle powered by explosion-proof batteries according to claim 1, characterized in that said power take-off means comprise a hydraulic power system mounted at the end of the body platform (8) remote from the rotary clamping device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210506424.XA CN114802498A (en) | 2022-05-11 | 2022-05-11 | Mining portal support carrier taking explosion-proof battery as power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210506424.XA CN114802498A (en) | 2022-05-11 | 2022-05-11 | Mining portal support carrier taking explosion-proof battery as power |
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| Publication Number | Publication Date |
|---|---|
| CN114802498A true CN114802498A (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210506424.XA Pending CN114802498A (en) | 2022-05-11 | 2022-05-11 | Mining portal support carrier taking explosion-proof battery as power |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011098403A (en) * | 2009-11-05 | 2011-05-19 | Kikuchiseisakusho Co Ltd | Rescue robot |
| CN110356757A (en) * | 2019-08-08 | 2019-10-22 | 桂林市富华金属制品有限公司 | A kind of handling robot and its control system |
| CN110979491A (en) * | 2019-12-28 | 2020-04-10 | 中国煤炭科工集团太原研究院有限公司 | Crawler-type does not have and supports singly strides support carrier repeatedly |
| CN112172598A (en) * | 2020-10-30 | 2021-01-05 | 中国煤炭科工集团太原研究院有限公司 | Bracket transportation equipment capable of rapidly replacing oil-electric power explosion-proof power supply and use method |
| CN212738334U (en) * | 2020-08-26 | 2021-03-19 | 山西喆星安全技术开发有限公司 | Mining explosion-proof lithium battery remote control lifting tracked vehicle |
| CN215439553U (en) * | 2021-01-12 | 2022-01-07 | 北京新能雅特科技发展有限公司 | Portal support carrier for coal mine |
| CN114291173A (en) * | 2022-01-13 | 2022-04-08 | 江苏天煤机电科技有限公司 | Portal type support carrier |
-
2022
- 2022-05-11 CN CN202210506424.XA patent/CN114802498A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011098403A (en) * | 2009-11-05 | 2011-05-19 | Kikuchiseisakusho Co Ltd | Rescue robot |
| CN110356757A (en) * | 2019-08-08 | 2019-10-22 | 桂林市富华金属制品有限公司 | A kind of handling robot and its control system |
| CN110979491A (en) * | 2019-12-28 | 2020-04-10 | 中国煤炭科工集团太原研究院有限公司 | Crawler-type does not have and supports singly strides support carrier repeatedly |
| CN212738334U (en) * | 2020-08-26 | 2021-03-19 | 山西喆星安全技术开发有限公司 | Mining explosion-proof lithium battery remote control lifting tracked vehicle |
| CN112172598A (en) * | 2020-10-30 | 2021-01-05 | 中国煤炭科工集团太原研究院有限公司 | Bracket transportation equipment capable of rapidly replacing oil-electric power explosion-proof power supply and use method |
| CN215439553U (en) * | 2021-01-12 | 2022-01-07 | 北京新能雅特科技发展有限公司 | Portal support carrier for coal mine |
| CN114291173A (en) * | 2022-01-13 | 2022-04-08 | 江苏天煤机电科技有限公司 | Portal type support carrier |
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Application publication date: 20220729 |
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