CN216751585U - Control system for integrated drilling mud pump prying - Google Patents
Control system for integrated drilling mud pump prying Download PDFInfo
- Publication number
- CN216751585U CN216751585U CN202123029044.1U CN202123029044U CN216751585U CN 216751585 U CN216751585 U CN 216751585U CN 202123029044 U CN202123029044 U CN 202123029044U CN 216751585 U CN216751585 U CN 216751585U
- Authority
- CN
- China
- Prior art keywords
- input end
- cabinet
- electrically connected
- driving motor
- mud pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The application relates to a control system is used to integration drilling slush pump sled includes: the system comprises a driving motor, a comprehensive control cabinet, a frequency converter cabinet and a control box; a rectifier, an inverter, a brake unit cabinet and a controller are arranged in the frequency converter cabinet; a PLC module is arranged in the comprehensive control cabinet, a first output end of the PLC module is electrically connected with the control box, a second output end of the PLC module is electrically connected with a controller, and the controller is electrically connected with the driving motor; the input end of the rectifier is suitable for being connected to a power supply, and the output end of the rectifier is electrically connected with the input end of the inverter and the input end of the brake unit cabinet; the input end of the inverter is electrically connected with the power input end of the driving motor; the input end of the brake unit cabinet is electrically connected with a brake load; the output shaft of the driving motor is suitable for being connected with the crankshaft input end of the slurry pump, and the driving motor is a synchronous motor. The mud pump directly drives the rotating shaft of the mud pump by using the driving motor, so that the power factor of the motor is high, the efficiency is high, and the requirements of energy conservation and emission reduction are met.
Description
Technical Field
The application relates to the field of drilling machine equipment, in particular to a control system for an integrated drilling mud pump prying.
Background
With the increasing drilling depth and the more and more complex drilling process, the conventional mud pump of the mechanical drilling machine cannot meet the drilling requirement. Each manufacturer provides a scheme for matching the electric slurry pump with the original system. The new electric slurry pump is a scheme that an electric control system and the slurry pump are separately arranged, and a large amount of workload is increased for moving and transporting and system wiring.
However, most of newly-installed slurry pumps are driven by an alternating current asynchronous motor through a belt, and the power factor of the motor is low and the efficiency is poor.
Disclosure of Invention
In view of this, the application provides a control system for integrated drilling mud pump sled, and its rotation axis that uses driving motor direct drive slush pump has its motor power factor height, and is efficient, has satisfied energy saving and emission reduction's requirement.
According to an aspect of the application, a control system for an integrated drilling mud pump pry is provided, and comprises:
the system comprises a driving motor, a comprehensive control cabinet, a frequency converter cabinet and a control box;
a rectifier, an inverter, a brake unit cabinet and a controller are arranged in the frequency converter cabinet;
a PLC module is arranged in the integrated control cabinet, a first output end of the PLC module is electrically connected with the control box, a second output end of the PLC module is electrically connected with the controller, and the controller is electrically connected with the driving motor;
the input end of the rectifier is suitable for being connected to a power supply, and the output end of the rectifier is electrically connected with the input end of the inverter and the input end of the brake unit cabinet;
the input end of the inverter is electrically connected with the power supply input end of the driving motor;
the input end of the brake unit cabinet is electrically connected with a brake load;
the output shaft of the driving motor is suitable for being connected with the crankshaft input end of the slurry pump, and the driving motor is a synchronous motor.
In a possible implementation manner, the system further comprises a wire inlet cabinet;
the wire inlet end of the wire inlet cabinet is suitable for being electrically connected with the power supply, and the wire outlet end of the wire inlet cabinet is electrically connected with the input end of the rectifier.
In one possible implementation, the driving motor is a permanent magnet synchronous motor.
In a possible implementation manner, the wire-feeding device further comprises a wire-feeding row and a wire-discharging row;
the inlet line bank is adapted to be electrically connected between the power source and the input of the rectifier;
the output end of the inverter is electrically connected with the outgoing line bank, and the power input end of the driving motor is electrically connected with the outgoing line bank.
In one possible implementation manner, the incoming line row and the outgoing line row are both socket boards;
plugs are arranged at the input end of the rectifier, the output end of the inverter and the power input end of the driving motor, the plugs at the input end of the rectifier are plugged in the incoming line row, and the plugs at the output end of the inverter and the power input end of the driving motor are plugged in the outgoing line row.
In one possible implementation, the device further comprises a shell and a connecting piece;
the comprehensive control cabinet, the frequency converter cabinet, the control box and the braking load are all arranged inside the shell;
the connecting piece is applicable to install on the mud pump base, casing fixed mounting be in on the connecting piece.
In one possible implementation, the connecting piece comprises a mounting bracket, a connecting rod and a mounting seat;
the mounting bracket is suitable for being fixedly mounted on the slurry pump base;
the mounting bracket is provided with a mounting hole, and the connecting rod penetrates through the mounting hole so as to be mounted on the mounting bracket;
the mounting seat is hinged to one end of the connecting rod;
the shell is fixedly installed on the installation seat.
In a possible implementation manner, a mounting plate is fixed on the mounting seat, and the mounting plate and the mounting seat are arranged in an L shape;
the shell is fixedly installed on the installation plate.
In a possible implementation manner, the connecting rod is a lead screw, and the mounting hole is a threaded hole matched with the connecting rod;
the connecting rod is screwed with a nut.
In a possible implementation manner, a positioning seat is arranged on the mounting seat;
the positioning seat and the mounting plate are positioned on two opposite sides of the mounting seat;
the positioning seat is suitable for being abutted to the mud pump base.
In the control system for the integrated drilling mud pump prying, the driving motor is set to be the synchronous motor, and the mud pump is directly driven to rotate by the driving motor. The electric control part for directly driving the mud pump by the driving motor comprises a comprehensive control cabinet, a control box of the mud pump and a frequency converter cabinet. The frequency converter cabinet is internally provided with a controller, the comprehensive control cabinet, the controller and the control box of the slurry pump form a communication network, so that bidirectional high-speed transmission of control instructions and operation states can be realized, and the control of the motion state of the driving motor is finished. And a rectifier, an inverter and a brake unit cabinet are also arranged in the frequency converter cabinet, six hundred-volt alternating current of a power supply can be converted into eight hundred and ten-volt direct current through the rectifier, and the eight hundred and ten-volt direct current is converted into zero to six hundred-volt alternating current through the inverter to drive the driving motor.
Therefore, the structure can stably drive the driving motor to rotate, the synchronous motor is adopted to drive the driving motor, the original mode that the alternating current asynchronous motor is used for driving the mud pump through the belt is changed into the mode that the synchronous motor directly drives the crankshaft input end of the mud pump, and the problem that the belt slips and the cost problem caused by replacement and maintenance of the belt are thoroughly solved. And the driving motor directly drives the rotating shaft of the slurry pump, so that the power factor of the motor is high, the efficiency is high, and the requirements of energy conservation and emission reduction are met.
Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.
Fig. 1 illustrates a control single line diagram of a control system for integrated drilling mud pump skid of an embodiment of the present application;
fig. 2 illustrates a front view of an integrated drilling mud pump skid control system of an embodiment of the present application;
fig. 3 shows a top view of an integrated drilling mud pump skid control system of an embodiment of the present application.
Detailed Description
Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention or for simplicity in description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.
Fig. 1 illustrates a control single line diagram of a control system for an integrated drilling mud pump skid according to an embodiment of the present application. As shown in fig. 1, the control system for the integrated drilling mud pump pry comprises: the driving motor 400, the integrated control cabinet 200, the inverter cabinet 100, and the control box 300, wherein the inverter cabinet 100 is provided with the rectifier 110, the inverter 120, the brake unit cabinet 130, and the controller. There is PLC module 210 in the integrated control cabinet 200, and the first output of PLC module 210 is connected with control box 300 electricity, and the second output of PLC module 210 is connected with the controller electricity, and the controller is connected with driving motor 400 electricity. The input terminal of the rectifier 110 is electrically connected to a power source, and the output terminal of the rectifier 110 is electrically connected to both the input terminal of the inverter 120 and the input terminal of the brake unit housing 130. The input terminal of the inverter 120 is electrically connected to the power input terminal of the drive motor 400. The input end of the brake unit is electrically connected with the brake load. The output shaft of the driving motor 400 is connected to the input end (i.e., the rotating shaft) of the crankshaft of the slurry pump, so that the driving motor 400 drives the slurry pump to rotate, and the driving motor 400 is a synchronous motor.
In the control system for the integrated drilling mud pump prying, the driving motor 400 is set to be a synchronous motor, so that the driving motor 400 directly drives the mud pump to rotate. The electric control part for directly driving the mud pump by the driving motor 400 comprises a comprehensive control cabinet 200, a control box 300 of the mud pump and a frequency converter cabinet 100. The frequency converter cabinet 100 is provided with a controller, and the integrated control cabinet 200, the controller and the control box 300 of the slurry pump form a communication network, so that bidirectional high-speed transmission of control instructions and operation states can be realized, and control of the motion state of the driving motor 400 is completed. The inverter cabinet 100 is further provided with a rectifier 110, an inverter 120 and a brake unit cabinet 130, six hundred volts of alternating current of a power supply can be converted into eight hundred ten volts of direct current through the rectifier 110, and the eight hundred ten volts of direct current is converted into zero to six hundred volts of alternating current through the inverter 120 to drive the driving motor 400.
Therefore, the structure can stably drive the driving motor 400 to rotate, the synchronous motor is adopted to drive in the embodiment of the application, the original mode that the alternating current asynchronous motor is used for driving the slurry pump through the belt is changed into the mode that the synchronous motor directly drives the crankshaft input end of the slurry pump, and the problem that the belt slips and the problem that the belt needs to be replaced and maintained are thoroughly solved. And the driving motor 400 directly drives the rotating shaft of the mud pump, so that the power factor of the motor is high, the efficiency is high, and the requirements of energy conservation and emission reduction are met.
Here, it should be noted that, in one possible implementation, the integrated control cabinet 200 includes a PLC module 210 and a switch array cabinet 220, wherein a first output terminal of the PLC module 210 is electrically connected to the control box 300 as a first output terminal of the integrated control cabinet 200, and a second output terminal of the PLC module 210 is electrically connected to the controller as a second output terminal of the integrated control cabinet 200. The switch array cabinet 220 has a first output electrically connected to each auxiliary equipment of the slurry, and a second output electrically connected to a temperature acquisition device of the slurry pump. Therefore, the control of auxiliary equipment such as a spray pump and a radiator and the temperature acquisition of a motor and a slurry pump can be completed.
It should also be noted here that in one possible implementation, there are S7-300 series PLCs in the PLC module 210, the ET200M slave station in the control box 300, the controller is a CU-320 controller, and the S7-300 series PLCs in the PLC module 210, the ET200M slave station in the control box 300, the CU-320 controller form a high speed Profibus-DP network through DP communication.
Here, it should also be noted that the bidirectional high-speed transfer of instructions and running states refers to: the operation state is generated by a temperature acquisition sensor on the driving motor 400, the rectifier 110 and the inverter 120, is transmitted through a DP communication bus, is subjected to digital-to-analog conversion through the PLC module 210, and is transmitted from the station to the mud pump control box 300 by the ET 200M. The control command consists of a work/stop switch and a hand wheel on the mud pump control box 300, is transmitted through a DP bus, enters the frequency converter cabinet 100 through an ET200M and the PLC module 210, and is transmitted to the driving motor 400 to control the operation of the driving motor 400.
Here, it should also be noted that, in one possible implementation, the integrated control cabinet 200 is provided with a display screen for displaying the operation state, parameters, alarms and fault auxiliary diagnosis of the equipment.
In a possible implementation manner, the power supply system further comprises a power supply cabinet 140, wherein a power supply end of the power supply cabinet 140 is electrically connected with a power supply, and a power supply end of the power supply cabinet 140 is electrically connected with an input end of the rectifier 110. From this, will integrate from the line that the power got into through inlet wire cabinet 140 for the inlet wire of this application embodiment and be qualified for the next round of competitions more.
Here, it should be noted that the inlet cabinet 140 may be a conventional technology means for those skilled in the art, and will not be described herein.
In one possible implementation, the drive motor 400 is a permanent magnet synchronous motor. Here, it should be noted that the permanent magnet synchronous motor is a conventional technical means for those skilled in the art, and the detailed description thereof is omitted.
In one possible implementation, a line inlet 500 and a line outlet 600 are further included, the line inlet 500 being electrically connected between the power source and the input of the rectifier 110. The output terminal of the inverter 120 is electrically connected to the outlet bar 600, and the power input terminal of the driving motor 400 is electrically connected to the outlet bar 600.
Here, it should be noted that, in one possible implementation, when the incoming cabinet 140 is provided in the embodiment of the present application, the outlet bar 600 is electrically connected between the power source and the incoming cabinet 140.
Further, in one possible implementation, the incoming line bank 500 and the outgoing line bank 600 are both socket boards. Plugs are arranged at the input end of the tidying cabinet, the output end of the inverter 120 and the power input end of the driving motor 400, the plug at the input end of the rectifier 110 is plugged on the incoming line row 500, and the plug at the output end of the inverter 120 and the plug at the power input end of the driving motor 400 are plugged on the outgoing line row 600. Therefore, the connection between the electric control and the mud pump body can be realized in a short time.
Here, it should be noted that in one possible implementation, both the incoming line bank 500 and the outgoing line bank 600 are explosion-proof quick socket banks.
In one possible implementation, the braking load may be a braking resistor.
As shown in fig. 1, fig. 2 or fig. 3, further, in a possible implementation manner, a housing and a connecting member 800 are further included, and the integrated control cabinet 200, the frequency converter cabinet 100, the control box 300 and the braking load are all installed inside the housing. The connector 800 is mounted on the mud pump mount 700 and the housing is fixedly mounted on the connector 800. Therefore, the installation of the integrated control cabinet 200, the frequency converter cabinet 100, the control box 300 and the brake load can be facilitated by arranging the connecting piece 800, so that the moving and the transportation are convenient.
Further, in one possible implementation, the connection 800 includes a mounting bracket 810, a link 820, and a mounting block 830, wherein the mounting bracket is fixedly mounted to the base of the mud pump. The mounting bracket 810 is provided with a mounting hole, and the connecting rod 820 penetrates through the mounting hole, so that the connecting rod 820 is mounted on the mounting bracket 810. The mounting seat 830 is hinged to one end of the connecting rod 820, and the housing is fixedly mounted on the mounting seat 830. Therefore, the casing can be connected to the mud pump base 700 in a prying mode, and the installation angle of the casing can be set through the connecting rod 820 and the installation seat 830 which are hinged, so that the installation and use conditions of the casing are wider.
Further, in a possible implementation manner, a mounting plate 840 is fixedly mounted on the mounting seat 830, the mounting plate 840 and the mounting seat 830 are arranged in an "L" shape, and the housing is fixedly mounted on the mounting plate 840. Here, it should be noted that the mounting plate 840 is disposed on a side of the mounting block 830 facing away from the mud pump mount 700.
In one possible implementation, the connecting rod 820 is a lead screw, the mounting hole is a threaded hole matched with the connecting rod 820, and a nut is screwed on the connecting rod 820. Thus, the length of extension of the mounting plate 840 and the hinged end of the link 820 out of the mud pump base 700 can be adjusted by turning the nut.
Furthermore, in a possible implementation manner, the positioning seat 900 is disposed on the mounting base 830, the positioning seat 900 and the mounting plate 840 are located on two opposite sides of the mounting base 830, and the positioning seat 900 may be disposed in abutment with the mud pump base 700. Thereby, an excessive rotation of the mount 830 can be prevented.
The control system for the integrated drilling mud pump prying in the embodiment of the application adopts the permanent magnet synchronous motor to be directly connected with the driving crankshaft of the mud pump, and compared with a mode of driving the mud pump to move by using an alternating current asynchronous motor driving belt, the weight of the mud pump is reduced, the running stability is improved, a belt transmission link is omitted by colleagues, and the maintenance cost is reduced. And due to the direct drive scheme of the permanent magnet synchronous motor, the motor efficiency is greater than 98%, the power factor is about 0.95, energy is greatly saved, emission is reduced, and the working efficiency is improved. And the mud pump is integrated with an electric control system in the embodiment of the application, and the electric control system comprises a PLC module 210, a switch array cabinet 220, a rectifier 110, an inverter 120, a brake unit, a controller, a brake resistor and a wire inlet cabinet 140 which are arranged in the shell. The PLC of the series S7-300 in the PLC module 210, the ET200M in the control box 300 and the CU-320 controller form a high-speed Profibus-DP network through DP communication, and therefore bidirectional high-speed transmission of control instructions and operation states is achieved. The power line is connected through the inlet wire cabinet 140, the six hundred volts of alternating current of the power supply can be converted into eight hundred ten volts of direct current through the rectifier 110, and the eight hundred ten volts of direct current is converted into zero to six hundred volts of alternating current through the inverter 120 to drive the permanent magnet synchronous motor. And the electric control system can be integrated in the shell through the arrangement of the shell, the shell is installed on the installation plate 840, the installation plate 840 is installed on the installation base 830, and the installation base 830 is hinged to a screw rod which is screwed on the installation bracket 810 on the mud pump base 700. Therefore, the hoisting structure is completed, and the placement can be completed in one step.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or improvements to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. The utility model provides an integration drilling slush pump sled is with control system which characterized in that includes:
the system comprises a driving motor, a comprehensive control cabinet, a frequency converter cabinet and a control box;
a rectifier, an inverter, a brake unit cabinet and a controller are arranged in the frequency converter cabinet;
a PLC module is arranged in the integrated control cabinet, a first output end of the PLC module is electrically connected with the control box, a second output end of the PLC module is electrically connected with the controller, and the controller is electrically connected with the driving motor;
the input end of the rectifier is suitable for being connected to a power supply, and the output end of the rectifier is electrically connected with the input end of the inverter and the input end of the brake unit cabinet;
the input end of the inverter is electrically connected with the power supply input end of the driving motor;
the input end of the brake unit cabinet is electrically connected with a brake load;
the output shaft of the driving motor is suitable for being connected with the crankshaft input end of the slurry pump, and the driving motor is a synchronous motor.
2. The integrated drilling mud pump prying control system of claim 1, further comprising a wireline cabinet;
the wire inlet end of the wire inlet cabinet is suitable for being electrically connected with the power supply, and the wire outlet end of the wire inlet cabinet is electrically connected with the input end of the rectifier.
3. The integrated drilling mud pump prying control system of claim 1, wherein the drive motor is a permanent magnet synchronous motor.
4. The integrated drilling mud pump prying control system of claim 1, further comprising a feed line bank and a discharge line bank;
the inlet line bank is adapted to be electrically connected between the power source and the input of the rectifier;
the output end of the inverter is electrically connected with the outgoing line bank, and the power input end of the driving motor is electrically connected with the outgoing line bank.
5. The control system for integrated drilling mud pump prying of claim 4, wherein the in-line row and the out-line row are both socket boards;
plugs are arranged at the input end of the rectifier, the output end of the inverter and the power input end of the driving motor, the plugs at the input end of the rectifier are plugged in the incoming line row, and the plugs at the output end of the inverter and the power input end of the driving motor are plugged in the outgoing line row.
6. The integrated drilling mud pump prying control system of any one of claims 1-5, further comprising a housing and a connector;
the comprehensive control cabinet, the frequency converter cabinet, the control box and the braking load are all arranged inside the shell;
the connecting piece is applicable to install on the mud pump base, casing fixed mounting is in on the connecting piece.
7. The integrated drilling mud pump skid control system of claim 6, wherein the connector comprises a mounting bracket, a link, and a mount;
the mounting bracket is suitable for being fixedly mounted on the slurry pump base;
the mounting bracket is provided with a mounting hole, and the connecting rod penetrates through the mounting hole so as to be mounted on the mounting bracket;
the mounting seat is hinged to one end of the connecting rod;
the shell is fixedly installed on the installation seat.
8. The integrated drilling mud pump skid control system of claim 7, wherein a mounting plate is fixed to the mounting base, and the mounting plate and the mounting base are arranged in an "L" shape;
the shell is fixedly installed on the installation plate.
9. The integrated drilling mud pump prying control system of claim 7, wherein the connecting rod is a lead screw and the mounting hole is a threaded hole that mates with the connecting rod;
the connecting rod is screwed with a nut.
10. The integrated drilling mud pump prying control system of claim 8, wherein a positioning seat is provided on the mounting seat;
the positioning seat and the mounting plate are positioned on two opposite sides of the mounting seat;
the positioning seat is suitable for abutting against the mud pump base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123029044.1U CN216751585U (en) | 2021-12-02 | 2021-12-02 | Control system for integrated drilling mud pump prying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123029044.1U CN216751585U (en) | 2021-12-02 | 2021-12-02 | Control system for integrated drilling mud pump prying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216751585U true CN216751585U (en) | 2022-06-14 |
Family
ID=81934026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123029044.1U Active CN216751585U (en) | 2021-12-02 | 2021-12-02 | Control system for integrated drilling mud pump prying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216751585U (en) |
-
2021
- 2021-12-02 CN CN202123029044.1U patent/CN216751585U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216751585U (en) | Control system for integrated drilling mud pump prying | |
| CN104716786A (en) | Heavy-current permanent magnet synchronous motor multi-drive control integration device | |
| CN204859061U (en) | Motor controller | |
| CN207641700U (en) | A kind of hand-hold washer | |
| CN201887605U (en) | Electric drive equipment for BLDCM with control function | |
| CN111168615A (en) | Electric tightening device | |
| CN202285384U (en) | Novel switched reluctance motor controller | |
| CN204442103U (en) | Big current permagnetic synchronous motor many drived control integrating device | |
| CN211992704U (en) | Electric tightening device | |
| CN201274444Y (en) | Convenient combination motor | |
| CN220325393U (en) | Explosion-proof three-phase motor convenient to maintain | |
| CN208811130U (en) | A kind of novel protected porous bench drill of lid | |
| CN214084118U (en) | Integrated control system | |
| CN103023427A (en) | Driver and variable-frequency motor integrated driving system | |
| CN215988421U (en) | Turning device is used in transformer core production | |
| CN220065800U (en) | Battery thermal management water cooling unit and battery thermal management system | |
| CN214337726U (en) | Integrated motor | |
| CN220513937U (en) | Pneumatic stirring and blending device for lubricating oil | |
| CN220702850U (en) | Automatic wire guide machine | |
| CN212278051U (en) | Lifting base for pumping unit motor | |
| CN203560166U (en) | Water pump device and bathtub applying water pump device | |
| CN220040526U (en) | Motor and test equipment of controller thereof | |
| CN211457028U (en) | Motor drive cabinet | |
| CN215922249U (en) | Simple modular screw air compressor for drilling machine | |
| CN220732578U (en) | A shell for high voltage inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |