CN209795148U - Electric scraper - Google Patents
Electric scraper Download PDFInfo
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- CN209795148U CN209795148U CN201920031516.0U CN201920031516U CN209795148U CN 209795148 U CN209795148 U CN 209795148U CN 201920031516 U CN201920031516 U CN 201920031516U CN 209795148 U CN209795148 U CN 209795148U
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Abstract
The utility model discloses an electric scraper, which comprises a battery system, wherein the battery system is respectively electrically connected with an operating system, a traction system, a hydraulic system and a control system through a voltage transformation system; the traction system comprises a first motor, a second motor, a third motor and a fourth motor, wherein the first motor and the second motor are respectively in transmission connection with two front wheels of the electric scraper, and the third motor and the fourth motor are respectively in transmission connection with two rear wheels of the electric scraper; the hydraulic system is used for driving a bucket of the electric scraper to move; the voltage transformation system comprises a voltage converter, the input end of the voltage converter is electrically connected with the battery system, and the output end of the voltage converter is electrically connected with the control system and the operating system; the control system is respectively in communication connection with the battery system, the operating system, the traction system and the hydraulic system. The utility model discloses electric scooptram's the performance of grabbing ground and flexible flexibility are better, and more clean environmental protection just is suitable for complicated abominable mining environment, and the cost reduction of mining operation, the efficiency and the security of production improve.
Description
Technical Field
The utility model discloses generally relate to ore mining transportation technical field, particularly, relate to an electric scooptram.
Background
In the existing ore mining, most mobile equipment for underground operation of a mine adopts a diesel engine as a prime mover, so that the ore mining cost is high due to high oil consumption, the environment pollution of the underground operation is serious, and the physical and mental health of underground operation personnel is influenced; meanwhile, an underground electric scraper which adopts an electric motor as a prime motor is also adopted to ensure fresh air, a tail towing cable drum is adopted to supply power, and the flexibility and the maneuverability of underground operation are limited.
Because the tail towing cable runs, the tail towing cable cannot be quickly transferred to another place for operation, and the production efficiency of the tail towing cable is seriously influenced. Mine enterprises are in a dragging mode and a cable joint reverse connection mode for transition of the electric scraper, rapid transfer cannot be achieved in the production process, the dragging mode needs the diesel scraper or other internal combustion vehicles to drag, the internal combustion vehicles cause underground air pollution to be affected, and the two vehicles are connected end to cause overlong dragging systems and easily cause safety accidents. The mode of cable joint transposition needs the block terminal to arrange densely, and personnel incessantly connect power cable intensity of labour is big, consuming time is long, also has high-pressure potential safety hazard. Trailing cables limit the range of motion of the machine and are also prone to wear and damage. The conventional electric scraper without the tail dragging cable has insufficient power, poor ground gripping performance and insufficient adaptability to complex and severe mining environments.
Therefore, a scraper which can better cope with complex and severe mining environment, has low discharge and low pollution and also has maneuverability of mine operation is urgently needed.
Disclosure of Invention
The utility model discloses a main aim at overcomes above-mentioned prior art's at least defect, provides one kind and can tackle complicated abominable mining environment better, discharges the electric scooptram that low and mobility performance is better simultaneously.
In order to achieve the purpose, the utility model adopts the following technical scheme:
According to an aspect of the present invention, there is provided an electric scooptram, including a battery system, the battery system being electrically connected to an operating system, a traction system, a hydraulic system, and a control system, respectively, through a voltage transformation system, to supply power to the electric scooptram; the traction system is arranged at the bottom of the body of the electric scooptram and comprises a first motor, a second motor, a third motor and a fourth motor, the first motor and the second motor are respectively in transmission connection with two front wheels of the electric scooptram so as to respectively drive the two front wheels, and the third motor and the fourth motor are respectively in transmission connection with two rear wheels of the electric scooptram so as to respectively drive the two rear wheels; the hydraulic system is used for driving a bucket of the electric scraper to move; the voltage transformation system comprises a voltage converter, the input end of the voltage converter is electrically connected with the battery system, and the output end of the voltage converter is electrically connected with the control system and the operating system; the control system is in communication connection with the battery system, the operating system, the traction system, and the hydraulic system, respectively.
According to the utility model discloses an embodiment, control system includes central processing unit, and with central processing unit communication connection's battery controller, operation controller, first motor controller, second motor controller, third motor controller, fourth motor controller and hydraulic controller, battery controller the operation controller first motor controller second motor controller third motor controller fourth motor controller and hydraulic controller respectively with battery system the operating system first motor, second motor, third motor, fourth motor and hydraulic system communication connection, central processing unit is used for carrying out analysis processes and to seven the controller sends command signal, first motor controller, The second motor controller, the third motor controller and the fourth motor controller are all in communication connection with an coordination control system, and the coordination control system is used for coordinating the rotating speed of the first motor, the rotating speed of the second motor, the rotating speed of the third motor and the rotating speed of the fourth motor.
According to the utility model discloses an embodiment, control system still includes signal transmitter, signal transmitter with operation controller communication connection is used for with the operating condition of consumer that central processing unit collected sends near control cabinet or mobile terminal through radio signal.
According to the utility model discloses an embodiment, battery system includes power battery, be equipped with battery detection module in the power battery, be used for detecting power battery's temperature, electric quantity, battery detection module with battery controller communication connection, in order to transmit the detected signal for battery controller.
According to the utility model discloses an embodiment, battery system still includes the battery cooler, the battery cooler corresponds power battery sets up, is used for cooling power battery.
According to the utility model discloses an embodiment, the vary voltage system still includes high-pressure on-off ware, high-pressure on-off ware set up in on the after-poppet of fuselage, and respectively with power battery and high-pressure distributor electricity are connected, high-pressure distributor with voltage converter electricity is connected.
According to the utility model discloses an embodiment, the vary voltage system is still including using electrical apparatus battery, with electrical apparatus battery set up in on the after-poppet of fuselage, and with voltage converter is parallelly connected, be used for doing operating system and accessory system use electrical apparatus power supply.
According to the utility model discloses an embodiment, hydraulic system includes hydraulic pump and cooling module, the hydraulic pump includes hydraulic pump motor, the cooling module is used for doing hydraulic pump motor heat dissipation.
According to an embodiment of the present invention, the electric scooptram further includes the accessory system, the accessory system set up in on the fuselage, and with the voltage converter electricity is connected, the accessory system includes the lighting module, be used for doing the electric scooptram illumination.
According to an embodiment of the present invention, the accessory system further comprises a whistle module for emitting an audible signal.
According to the above technical scheme, the utility model discloses an electric scooptram's advantage lies in with positive effect:
the utility model discloses in, the front axle of the first motor drive connection electric scooptram of traction system is with two front wheels on the drive front axle, the rear axle of second motor drive connection electric scooptram is with two rear wheels on the drive rear axle, battery system provides power, there is not the restriction of tail trailing cable, the power of scooptram is more sufficient, it is better to grab ground performance and flexible flexibility, cleaner environmental protection, be suitable for complicated abominable mining environment more, the cost reduction of mining operation, production efficiency and production security improve, have very high economic nature, and is very suitable for using widely in the industry.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be 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 application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a system connection of an electric scooptram according to an embodiment of the present invention.
Fig. 2 is a right-side schematic view of the electric scooptram according to an embodiment of the present invention.
Fig. 3 is a left side view schematic diagram of the electric scooptram according to an embodiment of the present invention.
Wherein the reference numerals are as follows:
1. A battery system; 11. a power battery; 12. a battery cooler; 2. a voltage transformation system; 21. a high pressure distributor; 22. a voltage converter; 23. an electric appliance battery; 3. a control system; 31. a central processing unit; 32. operating the controller; 33. a first motor controller; 34. a second motor controller; 35. a hydraulic controller; 36. a signal transmitter; 37. a third motor controller; 38. a fourth motor controller; 4. a coordination control system; 5. an operating system; 51. an operation table; 6. a traction system; 7. a hydraulic system; 71. a hydraulic oil tank; 72. a cooling module; 721. a fan; 722. a heat sink; 8. an accessory system.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
In the following description of various examples of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various example structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized, and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "top," "bottom," "front," "back," "side," and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., as to the orientation of the examples described in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures to fall within the scope of the invention.
Fig. 1 is a schematic view of a system connection of an electric scooptram according to an embodiment of the present invention.
Fig. 2 is a right-side schematic view of the electric scooptram according to an embodiment of the present invention.
As shown in fig. 1 and 2, the electric scooptram of this embodiment includes a battery system 1, and the battery system 1 is electrically connected to an operating system 5, a traction system 6, a hydraulic system 7 and a control system 3 through a voltage transformation system 2, respectively, to supply power to the electric scooptram; the traction system 6 is arranged at the bottom of the body of the electric scraper and comprises a first motor, a second motor, a third motor and a fourth motor, wherein the first motor and the second motor are respectively in transmission connection with two front wheels of the electric scraper so as to respectively drive the two front wheels, and the third motor and the fourth motor are respectively in transmission connection with two rear wheels of the electric scraper so as to respectively drive the two rear wheels; the hydraulic system 7 is used for driving a bucket of the electric scraper to move; the voltage transformation system 2 comprises a voltage converter 22, wherein the input end of the voltage converter 22 is electrically connected with the battery system 1, and the output end of the voltage converter 22 is electrically connected with the control system 3 and the operating system 5; the control system 3 is in communication with the battery system 1, the operating system 5, the traction system 6 and the hydraulic system 7, respectively.
In this embodiment, the battery system 1 is disposed on the rear frame of the machine body, the battery system 1 includes a power battery 11, the power battery 11 supplies power to the electric scraper, the power battery 11 may be a storage battery, a battery detection module is disposed in the power battery 11 and used for detecting the temperature, the electric quantity, the current magnitude and the like of the power battery 11, the battery detection module is in communication connection with the battery controller of the control system 3 to transmit a detection signal to the battery controller, the battery detection module of this design can detect the state of the power battery 11, and find the abnormal state of the power battery 11 in time and maintain the abnormal state.
In this embodiment, the battery system 1 further includes a battery cooler 12, the battery cooler 12 is disposed on the rear frame of the body and disposed corresponding to the power battery 11 for cooling the power battery 11, the battery cooler 12 may be an air conditioner, the battery cooler 12 is electrically connected to the output end of the voltage converter 22, the battery controller receives a detection signal sent by the battery detection module and transmits the detection signal to the cpu 31, when the temperature is found to be too high through the detection signal, the cpu 31 sends an instruction to turn on the battery cooler 12, and the battery controller receives the instruction and controls the battery cooler 12 to turn on, the battery cooler 12 according to this design can prevent the temperature of the power battery 11 from being too high during charging or discharging, and the temperature of the power battery 11 is too high, which not only affects the normal use of the power battery 11, but also causes a fire hazard.
In this embodiment, the transformer system 2 is disposed on the rear frame of the body and configured to provide two different voltages, the transformer system 2 includes a high-voltage switch, a high-voltage distributor 21, a voltage converter 22, and an electric appliance battery 23, the high-voltage switch is disposed on the rear frame of the body, the high-voltage switch may be a high-voltage switch cabinet, and an input end and an output end of the high-voltage switch cabinet are electrically connected to the power battery 11 and the high-voltage distributor 21, respectively, and configured to connect or disconnect a circuit between the power battery 11 and the high-voltage distributor 21; the high-voltage distributor 21 may be a high-voltage distribution box, an input end of the high-voltage distributor 21 is electrically connected to the power battery 11, and an output end of the high-voltage distributor 21 is electrically connected to the voltage converter 22, the first motor of the traction system 6, the second motor of the traction system 6, and the hydraulic pump motor of the hydraulic pump of the hydraulic system 7 in parallel, so that the high-voltage distributor 21 performs shunt conversion on a high-voltage circuit to provide high voltage for the first motor of the traction system 6, the second motor of the traction system 6, and the hydraulic pump motor of the hydraulic pump of the hydraulic system.
In this embodiment, a circuit protection device is disposed in the high voltage distributor 21 to protect the circuit from abnormal conditions, such as short circuit, phase loss, etc.; the voltage converter 22 may be a DC/DC converter, an input end of the voltage converter 22 is electrically connected to an output end of the high-voltage distributor 21, and an output end of the voltage converter 22 is electrically connected to the battery cooler 12, the consumer battery 23, the control system 3, the console 51 of the operating system 5, the accessory system 8, and the water pump of the radiator 722 of the cooling module 72 of the hydraulic system 7 in parallel, so that the voltage converter 22 converts the high-voltage power output by the power battery 11 into low-voltage power to supply power to the battery cooler 12, the consumer battery 23, the control system 3, the console 51 of the operating system 5, the accessory system 8, and the water pump of the radiator 722 of the cooling module 72 of the hydraulic system 7, thereby ensuring the safety; the electrical appliance battery 23 is arranged on the rear frame of the machine body, two ends of the electrical appliance battery 23 are respectively connected with the voltage converter 22 in parallel and used for supplying power to electrical appliances of the operating system 5 and the accessory system 8, and when the electric quantity of the power battery 11 is used up or fails, the electrical appliance battery 23 can continuously supply power to the electrical appliances of the operating system 5 and the accessory system 8 and serve as an emergency power supply to be conveniently contacted with the outside.
Fig. 3 is a left side view schematic diagram of the electric scooptram according to an embodiment of the present invention.
As shown in fig. 2 and fig. 3, in this embodiment, the control system 3 includes a central processing unit 31, and a battery controller, an operation controller 32, a first motor controller 33, a second motor controller 34, a third motor controller 37, a fourth motor controller 38 and a hydraulic controller 35 which are communicatively connected to the central processing unit 31, the battery controller, the operation controller 32, the first motor controller 33, the second motor controller 34, the third motor controller 37, the fourth motor controller 38 and the hydraulic controller 35 are communicatively connected to the battery system 1, the operation system 5, the first motor, the second motor, the third motor, the fourth motor and the hydraulic system 7, respectively, the central processing unit 31 is configured to analyze and process received signals and send command signals to the seven controllers, and send command signals to the console 51, the first motor, the second motor, the fourth motor and the hydraulic system 7 of the battery system 1, the operation console 51 of the operation system 5, and the hydraulic system 5, respectively, The second motor, the third motor, the fourth motor and the hydraulic system 7 are controlled, the battery controller may be disposed in the high-voltage switch cabinet, and the operation controller 32, the first motor controller 33, the second motor controller 34, the third motor controller 37, the fourth motor controller 38 and the hydraulic controller 35 may be disposed on the rear frame of the body.
In this embodiment, the first motor controller, the second motor controller, the third motor controller 37 and the fourth motor controller 38 are all in communication connection with the coordination system 4, the coordination system 4 is configured to coordinate the rotation speed of the first motor, the rotation speed of the second motor, the rotation speed of the third motor and the rotation speed of the fourth motor, the coordination system 4 may include a front coordinator, a rear coordinator and a central coordinator, the first motor controller and the second motor controller are in communication connection through the front coordinator, the front coordinator is configured to coordinate the rotation speed of the first motor and the rotation speed of the second motor, the third motor controller 37 and the fourth motor controller 38 are in communication connection through the rear coordinator, the rear coordinator is configured to coordinate the rotation speed of the third motor and the rotation speed of the fourth motor, and the front coordinator and the rear coordinator are in communication connection through the central coordinator, so as to couple the first motor driving the two front wheels, The rotation speeds of the second motor and the third and fourth motors driving the rear two wheels are coordinated, so that the rotation speeds of the front and rear four wheels are coordinated integrally, the front coordinator and the rear coordinator can be common electronic differentials, and the centralized coordinator can be a central electronic differential; the control system 3 further includes a signal transmitter 36, the signal transmitter 36 is in communication connection with the operation controller 32 and is controlled by the operation controller 32, the signal transmitter 36 is used for transmitting the working state of the electric device collected by the central processing unit 31 to a nearby console or a mobile terminal through a wireless signal, the signal transmitter 36 is disposed on the rear frame of the body, and the signal transmission mode of the signal transmitter may be any one of Zig-zag, bluetooth, Wi-Fi and CDMA.
In this embodiment, the operating system 5 is disposed in an operating room of the body, the operating system 5 is in communication with the control system 3, and the operating system 5 includes a steering wheel, an accelerator pedal, an operating lever, and an operating console 51; the steering wheel is used for operating personnel to control the electric scooptram and turns to, accelerator pedal is used for operating personnel to control the speed that electric scooptram marchs, brake pedal is used for operating personnel to control the electric scooptram braking, the action bars is used for the big arm and the scraper bowl motion of operating personnel control electric scooptram in order to accomplish the scooptram operation, operation panel 51 is connected with power battery 11 electricity through voltage transformation system 2, operation panel 51 is used for operating personnel input instruction, the fore-and-aft movement of control electric scooptram and shows information to operating personnel.
In this embodiment, the traction system 6 is disposed at the bottom of the machine body and used for driving the electric shovel to move forward or backward, the traction system 6 includes a first motor and a second motor, a motor shaft of the first motor is in transmission connection with an input shaft of a speed reducer, an output shaft of the speed reducer is in transmission connection with a front shaft of the electric shovel, front wheels are respectively installed at two ends of the front shaft through hubs, so that power of the first motor can be transmitted to the two front wheels of the front shaft to drive the two front wheels to rotate, a motor shaft of the second motor is in transmission connection with an input shaft of another speed reducer, an output shaft of the speed reducer is in transmission connection with a rear shaft of the electric shovel, front wheels are respectively installed at two ends of the rear shaft through hubs, so that power of the second motor can be transmitted to the two rear wheels of the rear shaft to drive the two rear.
In this embodiment, the hydraulic system 7 includes a hydraulic pump, a hydraulic oil tank 71, a brake module, a steering module, a working module and a cooling module 72, the hydraulic pump and the hydraulic oil tank 71 are disposed on the rear frame of the body, the brake module and the steering module are disposed at the bottom of the body, and the working module is disposed at the front side of the body; the hydraulic pump comprises a hydraulic pump motor, the hydraulic pump motor drives a blade or a plunger of the hydraulic pump to further push hydraulic oil in the hydraulic oil tank 71 to flow, and kinetic energy of the hydraulic oil provides power for the steering module, the braking module and the working module; the braking module is controlled by a brake pedal and used for braking the electric scraper, the steering module is controlled by a steering wheel and used for steering the electric scraper, and the working module is controlled by an operating rod and used for driving a large arm and a bucket of the electric scraper to carry out scraping work; the cooling module 72 is disposed on the rear frame of the body and configured to dissipate heat of the hydraulic pump motor, the cooling module 72 includes a fan 721 and a radiator 722, the radiator 722 is configured to dissipate heat of the hydraulic pump motor, the first traction motor, and the second traction motor, power of condensed water in the radiator 722 is provided by the water pump, the fan 721 is disposed opposite to the radiator 722, and the hydraulic oil provides power for rotation of the fan motor to drive the fan motor.
In this embodiment, the electric scooptram further includes an accessory system 8, the accessory system 8 is disposed on the machine body and electrically connected to the voltage converter 22, the accessory system 8 includes an illumination module for illuminating the electric scooptram, and the illumination module facilitates excavation work of the electric scooptram under a mine; the accessory system 8 further comprises a whistle module, wherein the whistle module is used for the electric scooptram to send out sound signals, and the electric scooptram is favorable for warning pedestrians and vehicles to pay attention to safety under a mine.
The utility model discloses in, the front axle of the first motor drive connection electric scooptram of traction system 6 is with two front wheels on the drive front axle, the rear axle of second motor drive connection electric scooptram is with two rear wheels on the drive rear axle, battery system 1 provides power, there is not the restriction of tail trailing cable, the power of scooptram is more sufficient, it is better with the flexible flexibility to grab ground performance, cleaner environmental protection, be more suitable for complicated abominable mining environment, the cost reduction of mining operation, production efficiency and production security improve, have very high economic nature, very be fit for using widely in the trade.
It is to be understood by one of ordinary skill in the art that the specific structures and processes shown in the detailed description are exemplary only and not limiting. Moreover, a person skilled in the art can combine the various technical features described above in various possible ways to form new technical solutions, or make other modifications, all of which fall within the scope of the present invention.
Claims (10)
1. The electric scraper is characterized by comprising a battery system, wherein the battery system is electrically connected with an operating system, a traction system, a hydraulic system and a control system through a voltage transformation system respectively so as to supply power to the electric scraper; the traction system is arranged at the bottom of the body of the electric scooptram and comprises a first motor, a second motor, a third motor and a fourth motor, the first motor and the second motor are respectively in transmission connection with two front wheels of the electric scooptram so as to respectively drive the two front wheels, and the third motor and the fourth motor are respectively in transmission connection with two rear wheels of the electric scooptram so as to respectively drive the two rear wheels; the hydraulic system is used for driving a bucket of the electric scraper to move; the voltage transformation system comprises a voltage converter, the input end of the voltage converter is electrically connected with the battery system, and the output end of the voltage converter is electrically connected with the control system and the operating system; the control system is in communication connection with the battery system, the operating system, the traction system, and the hydraulic system, respectively.
2. The electric scooptram of claim 1, wherein the control system comprises a central processor, and a battery controller, an operation controller, a first motor controller, a second motor controller, a third motor controller, a fourth motor controller, and a hydraulic controller communicatively connected to the central processor, the battery controller, the operation controller, the first motor controller, the second motor controller, the third motor controller, the fourth motor controller, and the hydraulic controller are communicatively connected to the battery system, the operation system, the first motor, the second motor, the third motor, the fourth motor, and the hydraulic system, respectively, the central processor is configured to analyze received signals and send command signals to seven of the controllers, the first motor controller, the second motor controller, the third motor controller and the fourth motor controller are all in communication connection with an assistant control system, the assistant control system is used for coordinating the rotating speed of the first motor, the rotating speed of the second motor, the rotating speed of the third motor and the rotating speed of the fourth motor, the assistant control system comprises a front coordinator, a rear coordinator and a centralized coordinator, the front coordinator is used for coordinating the rotating speed of the first motor and the rotating speed of the second motor, the rear coordinator is used for coordinating the rotating speed of the third motor and the rotating speed of the fourth motor, and the front coordinator and the rear coordinator are in communication connection through the centralized coordinator.
3. the electric scooptram of claim 2, wherein the control system further comprises a signal transmitter communicatively coupled to the operation controller for transmitting the operating status of the powered device collected by the central processor to a nearby console or mobile terminal via a wireless signal.
4. the electric scooptram of claim 2, wherein the battery system comprises a power battery, a battery detection module is disposed in the power battery for detecting the temperature and the electric quantity of the power battery, and the battery detection module is in communication connection with the battery controller for transmitting a detection signal to the battery controller.
5. The electric scooptram of claim 4, wherein the battery system further comprises a battery cooler disposed in correspondence with the power battery for cooling the power battery.
6. The electric scooptram of claim 5, wherein the voltage transformation system further comprises a high voltage switch disposed on a rear frame of the body and electrically connected to the power battery and a high voltage distributor, respectively, the high voltage distributor being electrically connected to the voltage converter.
7. The electric scooptram of claim 6, wherein the transformation system further comprises a consumer battery disposed on the rear frame of the body and connected in parallel with the voltage converter for supplying power to consumers of the operating system and the accessory system.
8. The electric scooptram of any of claims 1-7, wherein the hydraulic system includes a hydraulic pump including a hydraulic pump motor and a cooling module to dissipate heat for the hydraulic pump motor.
9. The electric scooptram of claim 7, further comprising the accessory system disposed on the body and electrically connected to the voltage converter, the accessory system including a lighting module for lighting the electric scooptram.
10. The electric scooper of claim 9, wherein the accessory system further includes a whistle module for sounding an audible signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920031516.0U CN209795148U (en) | 2019-01-09 | 2019-01-09 | Electric scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920031516.0U CN209795148U (en) | 2019-01-09 | 2019-01-09 | Electric scraper |
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| CN209795148U true CN209795148U (en) | 2019-12-17 |
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| CN201920031516.0U Active CN209795148U (en) | 2019-01-09 | 2019-01-09 | Electric scraper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532443A (en) * | 2019-01-09 | 2019-03-29 | 湖北金诚信矿业服务有限公司 | A kind of electric LHD |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532443A (en) * | 2019-01-09 | 2019-03-29 | 湖北金诚信矿业服务有限公司 | A kind of electric LHD |
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