CN110259738B - Vehicle-mounted drilling machine device of electric automobile - Google Patents
Vehicle-mounted drilling machine device of electric automobile Download PDFInfo
- Publication number
- CN110259738B CN110259738B CN201910569649.8A CN201910569649A CN110259738B CN 110259738 B CN110259738 B CN 110259738B CN 201910569649 A CN201910569649 A CN 201910569649A CN 110259738 B CN110259738 B CN 110259738B
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- Prior art keywords
- oil
- motor
- pressure switch
- hydraulic pump
- valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/027—Check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
Abstract
A truck-mounted drilling rig device of an electric automobile comprises a hydraulic pump, a manual reversing valve, a motor, a drill rod, an oil tank, a first one-way valve, a pressure switch, a power supply, a motor and a second one-way valve; oil outlets of the first one-way valve and the second one-way valve are communicated with a control port K of the pressure switch; the pressure switch, the power supply and the motor are electrically connected in sequence to form a loop; the output shaft of the motor is in transmission connection with the input shaft of the hydraulic pump; when pressure oil is introduced into a control port K of the pressure switch, the pressure switch is disconnected; when the hydraulic clutch is used, the oil inlet of the first one-way valve is connected to an execution port A of a gear control valve of a vehicle to an oil channel of a forward gear clutch; and an oil inlet of the second one-way valve is connected to an oil passage from an execution port B of a gear control valve of the vehicle to the reverse gear clutch. The invention can realize that the rotating rod can not rotate when the driver carelessly and mistakenly operates the manual reversing valve in the driving process of engaging the forward gear or the backward gear.
Description
Technical Field
The invention relates to an automobile, in particular to a vehicle-mounted drilling machine device of an electric automobile.
Background
The truck-mounted drilling rig device of the automobile is arranged on the automobile and is mainly used for drilling, and the automobile is convenient to move, so that the truck-mounted drilling rig device arranged on the automobile is convenient to move, and the requirement that different places need to be drilled can be met. As shown in FIG. 3, the truck-mounted drilling rig device of the prior art for the automobile comprises a hydraulic pump 43, a manual reversing valve 52, a motor 53, a drill rod 54 and an oil tank 45, wherein an oil inlet of the hydraulic pump 43 is communicated with the oil tank 45, an oil outlet of the hydraulic pump 43 is communicated with an oil inlet P of the manual reversing valve 52, an execution port A of the manual reversing valve 52 is communicated with an oil inlet of the motor 53, an oil outlet T of the manual reversing valve 52 is communicated with the oil tank on the automobile, the drill rod 54 is in transmission connection with an output shaft 53-1 of the motor 53 through a coupler, when punching is needed, only the manual directional control valve 52 is operated to communicate the oil inlet P of the manual directional control valve 52 with the execution port A, the pressure oil in the hydraulic pump 43 enters the motor 53 to rotate the output shaft 53-1 of the motor 53, thereby driving the rotating rod 54 which is in transmission connection with the output shaft 53-1 of the motor 53 to rotate synchronously, thus completing the drilling operation. In practice, when a driver engages a forward gear or a backward gear in a driving process, the manual reversing valve 52 is carelessly operated by mistake (under a normal condition, an execution port A of the manual reversing valve 52 is communicated with an oil outlet T in the driving process), so that an oil inlet P of the manual reversing valve 52 is communicated with the execution port A, pressure oil in the hydraulic pump 43 enters the motor 53, the motor 53 rotates, the motor 53 drives the rotating rod 54 to rotate, and the rotating rod 54 rotating in the driving process is easy to hurt people and objects and is very unsafe.
Disclosure of Invention
The invention aims to provide a truck-mounted drilling machine device of an electric automobile, wherein a rotating rod cannot rotate when a driver carelessly and mistakenly operates a manual reversing valve in the process of driving in a forward gear or a backward gear.
In order to achieve the purpose, the technical scheme of the invention is as follows: a truck-mounted drilling rig device of an electric automobile comprises a hydraulic pump, a manual reversing valve, a motor, a drill rod and an oil tank; the motor includes an output shaft; an oil inlet of the hydraulic pump is communicated with an oil tank, an oil outlet of the hydraulic pump is communicated with an oil inlet P of the manual reversing valve, and an execution port A of the manual reversing valve is communicated with an oil inlet of the motor; the drill rod is in transmission connection with an output shaft of the motor;
the automatic control system also comprises a first one-way valve, a pressure switch, a power supply, a motor and a second one-way valve; oil outlets of the first one-way valve and the second one-way valve are communicated with a control port K of the pressure switch; the pressure switch, the power supply and the motor are electrically connected in sequence to form a loop; the output shaft of the motor is in transmission connection with the input shaft of the hydraulic pump; when pressure oil is introduced into a control port K of the pressure switch, the pressure switch is disconnected; when the hydraulic clutch is used, the oil inlet of the first one-way valve is connected to an execution port A of a gear control valve of a vehicle to an oil channel of a forward gear clutch; and an oil inlet of the second one-way valve is connected to an oil passage from an execution port B of a gear control valve of the vehicle to the reverse gear clutch.
And a filter is arranged on an oil channel from the oil tank to an oil inlet of the hydraulic pump.
And a safety valve is arranged on an oil channel from an oil outlet of the hydraulic pump to the oil tank.
And an output shaft of the motor is in transmission connection with an input shaft of the hydraulic pump through a coupler.
The invention has the following positive effects: (1) oil outlets of the first one-way valve and the second one-way valve are communicated with a control port K of the pressure switch; the pressure switch, the power supply and the motor are electrically connected in sequence to form a loop; the output shaft of the motor is in transmission connection with the input shaft of the hydraulic pump; when pressure oil is introduced into a control port K of the pressure switch, the pressure switch is disconnected; when the hydraulic clutch is used, the oil inlet of the first one-way valve is connected to an execution port A of a gear control valve of a vehicle to an oil channel of a forward gear clutch; the oil inlet of the second one-way valve is connected with the oil channel from the execution port B of the gear control valve of the vehicle to the reverse gear clutch, therefore, when a driver carelessly and mistakenly operates the manual reversing valve in the process of engaging the forward gear or the reverse gear to enable the oil inlet P of the manual reversing valve to be communicated with the execution port A, the pressure oil in the hydraulic pump enters the forward gear clutch 41 or the reverse gear clutch, meanwhile, the pressure oil in the hydraulic pump can also enter the control port K of the pressure switch through the first one-way valve or the second one-way valve, the pressure oil is introduced into the control port K of the pressure switch, the pressure switch is disconnected, the output shaft of the motor can not rotate any more, the input shaft of the hydraulic pump in transmission connection with the output shaft of the motor can not be driven to rotate, the hydraulic pump can not output the pressure oil, no pressure oil enters the motor, the output shaft of the motor can not rotate, and the rotating rod in transmission connection with the output shaft of the motor can not, in the driving process that the electric automobile is engaged with the forward gear or the backward gear, even if a driver operates the manual reversing valve by mistake to enable the oil inlet P of the manual reversing valve to be communicated with the execution port A, the rotating rod cannot rotate, people and objects are not easy to be injured, and the electric automobile is very safe.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic diagram of a prior art vehicle gear arrangement;
FIG. 3 is a schematic diagram of a prior art truck-mounted drilling rig apparatus;
fig. 4 is a schematic diagram of the connection of the present invention to a gear device of a vehicle.
The reference numbers in the above figures are as follows: the hydraulic control system comprises a first one-way valve 1, a pressure switch 2, a power supply 3, a motor 4, a second one-way valve 5, a coupling 6, a gear control valve 40, a control lever 40-1, a forward gear clutch 41, a reverse gear clutch 42, a hydraulic pump 43, a filter 44, an oil tank 45, a safety valve 46, a manual reversing valve 52, a motor 53, an output shaft 53-1 and a drill rod 54.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the examples given.
As shown in fig. 1, the truck-mounted drilling rig device of the electric automobile comprises a hydraulic pump 43, a manual reversing valve 52, a motor 53, a drill rod 54 and an oil tank 45; the motor 53 includes an output shaft 53-1; an oil inlet of the hydraulic pump 43 is communicated with the oil tank 45, an oil outlet of the hydraulic pump 43 is communicated with an oil inlet P of the manual reversing valve 52, and an execution port A of the manual reversing valve 52 is communicated with an oil inlet of the motor 53; the drill rod 54 is in transmission connection with an output shaft 53-1 of the motor 53 through a coupler;
the device also comprises a first one-way valve 1, a pressure switch 2, a power supply 3, a motor 4 and a second one-way valve 5; the pressure switch 2 is an oil pressure switch with the model number of DNM-03P-100K-21B. The motor 4 is a motor with a model number of HRS-555PH, which is produced by Shaoxing constant force motor company Limited. Oil outlets of the first one-way valve 1 and the second one-way valve 5 are both communicated with a control port K of the pressure switch 2; the pressure switch 2, the power supply 3 and the motor 4 are electrically connected in sequence to form a loop; the output shaft of the motor 4 is in transmission connection with the input shaft of the hydraulic pump 43 through a coupling 6; when the control port K of the pressure switch 2 is filled with pressure oil, the pressure switch 2 is switched off; at which time the output shaft of the motor 4 no longer rotates. When the control port K of the pressure switch 2 is not filled with pressure oil, the pressure switch 2 is switched on, at this time, the output shaft of the motor 4 starts to rotate, and drives the input shaft of the hydraulic pump 43 in transmission connection with the output shaft of the motor 4 to synchronously rotate, and at this time, the hydraulic pump 43 can output the pressure oil. When the gear shifting device is used, the gear shifting device needs to be matched with a gear shifting device on a vehicle, the gear shifting device in the prior art comprises a gear shifting control valve 40, a forward gear clutch 41, a reverse gear clutch 42 and a hydraulic pump 43, the gear shifting control valve 40 comprises an operating rod 40-1, an oil inlet P of the gear shifting control valve 40 is communicated with an oil outlet of the hydraulic pump 43, an execution port A of the gear shifting control valve 40 is communicated with the forward gear clutch 41, an execution port B of the gear shifting control valve 40 is communicated with the reverse gear clutch 42, and the operating rod 40-1 of the gear shifting control valve 40 is connected with a gear selector located in a cab through a flexible shaft. When a driver operates a gear selector positioned in a cab to be hung on a forward gear, the flexible shaft drives an operating lever 40-1 of a gear control valve 40 to move, an oil inlet P of the gear control valve 40 is communicated with an execution port A, pressure oil in a hydraulic pump 43 enters a forward gear clutch 41, the forward gear clutch 41 is in a combined state, a power shaft is combined with the forward shaft, and a vehicle can move forward. When a driver operates a gear selector positioned in a cab to be hung on a reverse gear, an oil inlet P of a gear control valve 40 is communicated with an execution port B, a reverse gear clutch 42 is in a combined state, a power shaft is combined with a reverse shaft, and the vehicle can reverse. When a driver operates a gear selector positioned in a cab to hang the gear selector on a neutral gear, an oil inlet P of a gear control valve 40 is not communicated with an execution port A and an execution port B, a forward gear clutch 41 and a reverse gear clutch 42 are both in a separated state, and a vehicle can not move forward or move backward. As shown in fig. 4, in use, the oil inlet of the first check valve 1 is connected to an oil passage from an execution port a of a gear control valve 40 of a vehicle to a forward clutch 41; that is, the oil inlet port of the first check valve 1 communicates with the oil passage from the actuation port a of the range control valve 40 to the forward clutch 41. The oil inlet of the second check valve 5 is connected to an oil passage from the apply port B of the shift control valve 40 of the vehicle to the reverse clutch 42. I.e., the oil inlet port of the second check valve 5 communicates with the oil passage from the actuation port B of the range control valve 40 to the reverse clutch 42.
And a filter 44 is arranged on an oil channel from the oil tank 45 to an oil inlet of the hydraulic pump 43.
A safety valve 46 is arranged on an oil channel from an oil outlet of the hydraulic pump 43 to the oil tank 45.
The output shaft of the motor 4 is in transmission connection with the input shaft of the hydraulic pump 43 through the coupler 6.
The working principle of the invention is as follows: as shown in fig. 4, when the driver accidentally operates the manual directional control valve 52 to communicate the oil inlet P of the manual directional control valve 52 with the actuating port a during the forward gear driving process, since the vehicle is hooked on the forward gear, the oil inlet P of the gear control valve 40 communicates with the actuating port a, the pressure oil in the hydraulic pump 43 enters the forward gear clutch 41, the pressure oil in the hydraulic pump 43 can enter the control port K of the pressure switch 2 through the first check valve 1, the pressure oil is introduced into the control port K of the pressure switch 2, the pressure switch 2 is turned off, the output shaft of the electric motor 4 does not rotate any more, the input shaft of the hydraulic pump 43 in transmission connection with the output shaft of the electric motor 4 cannot be driven to rotate, the hydraulic pump 43 cannot output the pressure oil, and no pressure oil enters the motor 53 even though the oil inlet P of the manual directional control valve 52 communicates with the actuating port a, the output shaft 53-1 of the motor 53 cannot rotate, and the rotating rod 54 in transmission connection with the output shaft 53-1 of the motor 53 cannot be driven to synchronously rotate, namely, in the running process of the electric automobile with the front gear engaged, even if a driver mistakenly operates the manual reversing valve 52 to enable the oil inlet P of the manual reversing valve 52 to be communicated with the execution port A, the rotating rod 54 cannot rotate, so that people and objects are not easily injured, and the electric automobile is very safe.
When a driver carelessly operates the manual reversing valve 52 by mistake in the process of engaging the reverse gear to enable an oil inlet P of the manual reversing valve 52 to be communicated with an execution port A, at the moment, because the vehicle is engaged on the reverse gear, the oil inlet P of the gear control valve 40 is communicated with the execution port B, pressure oil in the hydraulic pump 43 enters the reverse gear clutch 42, the pressure oil in the hydraulic pump 43 can also enter a control port K of the pressure switch 2 through the second one-way valve 5, the pressure oil is introduced into the control port K of the pressure switch 2, the pressure switch 2 is disconnected, at the moment, an output shaft of the motor 4 does not rotate any more and can not drive an input shaft of the hydraulic pump 43 in transmission connection with the output shaft of the motor 4 to rotate, so that the hydraulic pump 43 can not output the pressure oil, at the moment, even if the oil inlet P of the manual reversing valve 52 is communicated with the execution port A, no pressure oil enters the motor 53, and an output shaft 53-1 of, the rotating rod 54 in transmission connection with the output shaft 53-1 of the motor 53 cannot be driven to rotate synchronously, namely, even if a driver mistakenly operates the manual reversing valve 52 to enable the oil inlet P of the manual reversing valve 52 to be communicated with the execution port A in the process of driving the electric automobile in a reverse gear shifting mode, the rotating rod 54 cannot rotate, people and objects cannot be injured easily, and the electric automobile is very safe.
When drilling is needed, the electric automobile is stopped to run, namely the electric automobile is hung on a neutral gear, an oil inlet P of the gear control valve 40 is not communicated with an execution port A and an execution port B, pressure oil is not introduced into an oil inlet of the first one-way valve 1 and an oil inlet of the second one-way valve 5, no pressure oil enters a control port K of the pressure switch 2, the pressure switch 2 is switched on, an output shaft of the motor 4 can rotate and can drive an input shaft of a hydraulic pump 43 in transmission connection with the output shaft of the motor 4 to rotate, so that the hydraulic pump 43 can output the pressure oil, a driver operates the manual reversing valve 52 to enable the oil inlet P of the manual reversing valve 52 to be communicated with the execution port A, the pressure oil can enter the motor 53, an output shaft 53-1 of the motor 53 can rotate and drive a rotating rod 54 in transmission connection with the output shaft 53-1 of the motor 53 to synchronously rotate, the drilling operation can be performed.
Claims (4)
1. A truck-mounted drilling rig device of an electric automobile comprises a hydraulic pump (43), a manual reversing valve (52), a motor (53), a drill rod (54) and an oil tank (45); the motor (53) includes an output shaft (53-1); an oil inlet of the hydraulic pump (43) is communicated with the oil tank (45), an oil outlet of the hydraulic pump (43) is communicated with an oil inlet P of the manual reversing valve (52), and an execution port A of the manual reversing valve (52) is communicated with an oil inlet of the motor (53); the drill rod (54) is in transmission connection with an output shaft (53-1) of the motor (53); the method is characterized in that:
the automatic control system is characterized by also comprising a first one-way valve (1), a pressure switch (2), a power supply (3), a motor (4) and a second one-way valve (5); oil outlets of the first one-way valve (1) and the second one-way valve (5) are communicated with a control port K of the pressure switch (2); the pressure switch (2), the power supply (3) and the motor (4) are electrically connected in sequence to form a loop; the output shaft of the motor (4) is in transmission connection with the input shaft of the hydraulic pump (43); when pressure oil is introduced into a control port K of the pressure switch (2), the pressure switch (2) is switched off, and at the moment, the output shaft of the motor (4) does not rotate any more; when pressure oil is not introduced into a control port K of the pressure switch (2), the pressure switch (2) is switched on, and at the moment, the output shaft of the motor (4) starts to rotate; when in use, the oil inlet of the first one-way valve (1) is connected to an execution port A of a gear control valve (40) of a vehicle to an oil channel of a forward clutch (41); the oil inlet of the second one-way valve (5) is connected to an oil passage from an execution port B of a gear control valve (40) of the vehicle to a reverse gear clutch (42).
2. The truck-mounted drilling rig device of an electric vehicle according to claim 1, characterized in that: and a filter (44) is arranged on an oil channel from the oil tank (45) to an oil inlet of the hydraulic pump (43).
3. The truck-mounted drilling rig device of an electric vehicle according to claim 1, characterized in that: and a safety valve (46) is arranged on an oil channel from an oil outlet of the hydraulic pump (43) to the oil tank (45).
4. The truck-mounted drilling rig device of an electric vehicle according to claim 1, characterized in that: and an output shaft of the motor (4) is in transmission connection with an input shaft of the hydraulic pump (43) through a coupler (6).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011038010.6A CN112145675A (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile |
| CN201910569649.8A CN110259738B (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile |
| CN202011038007.4A CN112145674A (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile and drilling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569649.8A CN110259738B (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011038010.6A Division CN112145675A (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile |
| CN202011038007.4A Division CN112145674A (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile and drilling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110259738A CN110259738A (en) | 2019-09-20 |
| CN110259738B true CN110259738B (en) | 2020-11-06 |
Family
ID=67922518
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011038010.6A Withdrawn CN112145675A (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile |
| CN202011038007.4A Withdrawn CN112145674A (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile and drilling method thereof |
| CN201910569649.8A Active CN110259738B (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011038010.6A Withdrawn CN112145675A (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile |
| CN202011038007.4A Withdrawn CN112145674A (en) | 2019-06-27 | 2019-06-27 | Vehicle-mounted drilling machine device of electric automobile and drilling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN112145675A (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190501A (en) * | 2006-11-21 | 2008-06-04 | 河南新机股份有限公司 | Pressure-limiting device of steel ball finishing machine |
| CN201390248Y (en) * | 2008-12-31 | 2010-01-27 | 众泰控股集团有限公司 | Brake system of electric vehicle |
| JP6891104B2 (en) * | 2015-09-28 | 2021-06-18 | 株式会社クボタ | Work machine hydraulic system |
| CN106640614B (en) * | 2016-12-27 | 2018-03-16 | 常州科研试制中心有限公司 | Suction-type sewer scavenger vacuum pump control system |
| CN108612477B (en) * | 2018-05-06 | 2019-12-03 | 安徽科恒电力科技有限公司 | Truck-mounted drilling rig device |
| CN108533730A (en) * | 2018-07-01 | 2018-09-14 | 袁菊花 | The linkage control device of the shifting-position mechanism and vacuum pump control mechanism of suction-type sewer scavenger |
| CN109484381A (en) * | 2018-11-04 | 2019-03-19 | 刘剑 | The gear and brake linkage of vehicle |
-
2019
- 2019-06-27 CN CN202011038010.6A patent/CN112145675A/en not_active Withdrawn
- 2019-06-27 CN CN202011038007.4A patent/CN112145674A/en not_active Withdrawn
- 2019-06-27 CN CN201910569649.8A patent/CN110259738B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112145674A (en) | 2020-12-29 |
| CN112145675A (en) | 2020-12-29 |
| CN110259738A (en) | 2019-09-20 |
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Effective date of registration: 20200928 Address after: 213000 No. 21 Tian Shan Road, Xinbei District, Jiangsu, Changzhou Applicant after: CHANGZHOU AISHANGXUE EDUCATION TECHNOLOGY Co.,Ltd. Address before: 213000 No. 21 Tian Shan Road, Xinbei District, Jiangsu, Changzhou Applicant before: Liu Jian |
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