Portable motor locked-rotor testing device
The portable motor stall test device integrates a control system and a motor mounting bracket, solving the problems of large size, complex wiring, and low testing efficiency of existing equipment. It enables efficient testing of multiple motors and DC load electrical components, improving testing efficiency and flexibility.
Patent Information
- Application Number
- CN202520377804.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Existing motor stall testing equipment is large in size, has complex circuitry, low testing efficiency, and is difficult to test multiple motors and DC load electrical components on instruments simultaneously.
A portable motor stall test device was designed, integrating a control system and a motor mounting bracket. The device includes a housing, an operation panel, a motor control board, a motor driver, and a power module. It supports testing of various motors and DC load electrical components. Communication is achieved using an RS232 to CAN converter. The motor mounting bracket can hold multiple motors under test, simplifying wiring connections.
It enables efficient testing of multiple motors and DC load electrical components, improving testing efficiency. Its small and flexible size facilitates testing needs in different locations and simplifies field wiring connections.
Smart Images
Figure CN223955762U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of motor's locked-rotor test in medical detection equipment, especially to a portable motor locked-rotor test device. BACKGROUND
[0002] Full-automatic in-vitro diagnostic equipment is an important equipment indispensable for modern medical examination laboratory, such as full-automatic biochemical analyzer, full-automatic chemiluminescence immunoassay instrument and the like. Among them, the sample grabbing, moving and sample adding actions in the running of full-automatic in-vitro diagnostic equipment cannot be separated from motor, and various working pumps in the liquid path of the motor are also matched with motor, so the motor is the core component for full-automatic in-vitro diagnostic equipment to execute automatic detection work. Motor locked-rotor test is an important test in motor safety test, and the existing test is to fix the motor on the test platform by using pliers and the like, and to connect the line on site, so the line is complex and prone to pulling, only one motor can be tested each time, the test efficiency is low, and it is inconvenient for maintenance and detection of various motors on the instrument. SUMMARY
[0003] Therefore, the utility model provides a portable motor locked-rotor test device, which is simple to operate, can realize batch testing of various different types of motors, and improves the test efficiency.
[0004] To achieve the above object, the utility model takes the following technical scheme:
[0005] The portable motor locked-rotor test device, including control system and motor fixing frame, the control system includes the casing, sets up operation panel and motor control board on the casing and sets up in the casing motor driver and power module, the power module is the operation panel, motor control board, motor driver and the motor or direct current load electric element for detected power supply;
[0006] The side wall of the casing is provided with a plurality of first socket, second socket and third socket, the power module is the first socket, second socket and third socket power supply, and the first socket is a direct current load socket;The operation panel and the motor control board are in communication connection, and the motor control board and the second socket are in communication connection;The motor control board and the motor driver are in communication connection, and the motor driver is connected with the third socket;
[0007] The motor fixing frame includes the motor fixing plate arranged vertically and a plurality of locking plates fixed on the motor fixing plate, the motor fixing plate has a plurality of through holes for the motor shaft of the motor to be tested to pass through, and the motor shaft or the moving nut of the motor to be tested is fixed with the locking plate.
[0008] The beneficial effect is that the power module, the motor control board and the motor driver are centrally installed in the shell, which can not only meet the test requirements of the large-current motor (the motor current is above 3A), but also meet the test requirements of the small-current motor (the motor current is below 3A), and can meet the test of the DC load components (such as the working pump with the motor and the electromagnetic valve) on the instrument, can realize the test of multiple motors or multiple DC load components, and improve the test efficiency.
[0009] In one preferred embodiment of the utility model, the side wall of the shell is provided with a mounting hole, and the heat dissipation fan in the mounting hole is electrically connected with the power module. The heat dissipation fan can timely discharge the heat generated during the operation. Of course, during actual installation, a plurality of heat dissipation holes can be formed in the side wall of the shell to further promote the exchange of air between the shell and the outside air and promote heat dissipation.
[0010] In one preferred embodiment of the utility model, the bottom wall of the shell is provided with a supporting leg, and the side wall of the shell is provided with a handle. During actual installation, the supporting leg is preferably a rubber supporting leg, which is convenient to place. The handle is installed on the shell, which is convenient to lift and can realize flexible transfer and convenient test.
[0011] In one preferred embodiment of the utility model, the locking plate is a plate body with a plane structure or a plate body with a U-shaped structure. The beneficial effect is that when the motor to be tested is a lead screw motor or a stepping motor, the plate body with a plane structure can be used to lock the motor to be tested, and when the motor to be tested is an extended shaft motor, the U-shaped structure fixing plate can be used to fix the motor shaft, thereby evaluating the overload capacity and protection capacity of the motor.
[0012] Preferably, the RS232 communication interface of the operation panel is connected with the RS232 communication interface of the protocol converter, and the CAN interface of the protocol converter is connected with the CAN interface of the motor control board. The beneficial effect is that the protocol converter of the utility model is an RS232 to CAN converter, which can realize the communication between the electrical components of the control system and lay the foundation for the test of the motor to be tested or other DC load.
[0013] Compared with the prior art, the power module, the motor control board and the motor driver are centrally installed in the shell, not only the test demand of the large current motor (the motor current is above 3A) can be met, but also the test demand of the small current motor (the motor current is below 3A) can be met, the test of the direct current load electric element (such as various working pumps with motors) on the instrument can be met, the test of multiple motors or multiple direct current load electric elements can be realized, and the test efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a schematic diagram of the utility model Figure 1 .
[0015] Figure 2 is a schematic diagram of the utility model Figure 2 .
[0016] Figure 3 is a schematic diagram of the utility model control system (remove the shell).
[0017] Figure 4 is a schematic diagram of the utility model motor fixing frame.
[0018] Figure 5 is a circuit principle frame of the utility model Figure 1 .
[0019] Figure 6 is a circuit principle frame of the utility model Figure 2 . DETAILED DESCRIPTION
[0020] The embodiment of the utility model is described in detail below in combination with the drawings, is implemented under the premise of the utility model technical scheme, gives detailed implementation mode and specific operation process, but the protection scope of the utility model is not limited to the following embodiment.
[0021] It should be noted that, in the description of the utility model, the relationship terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.
[0022] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection" that can appear should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements inside.For the person skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.
[0023] As Figures 1-6 The utility model provides a portable motor locked-rotor testing device, including control system 10 and motor fixing frame 20, control system 10 includes casing 101, sets up operating panel 102 on casing 101 and sets up motor control panel 103, motor driver 104 and power module 105 (converts 220V direct current power supply into 24V direct current output power supply) in casing 101, be provided with power cord socket and power switch 106 on casing 101, and power module 105 is powered for operating panel 102 (adopts industrial touch screen), motor control panel 103, motor driver 104, and power module 105 is powered for the motor to be detected, direct current load component;Motor control panel 103 adopts the controller integrated with current sensor, speed sensor and temperature sensor to obtain the current, speed and surface temperature rise after motor locked-rotor;
[0024] The side wall of casing 101 is provided with a plurality of first sockets 107, a plurality of second sockets 108 and a plurality of third sockets 109, and the power module 105 provides power for the motor to be measured or the working pump to be measured inserted into the first socket 107, the second socket 108 and the third socket 109;Among them, the first socket 107 is a direct current load socket (used for testing the working pump or working electromagnetic valve with motor), and the casing 101 is further provided with a direct current output switch 112 matched with the first socket 107, for controlling the power-on condition of the direct current load component to be measured electrically connected with the first socket 107, and the power-on condition of the direct current load component to be measured electrically connected with the first socket 107 needs to be opened first before the direct current output switch is opened during testing.
[0025] The operation panel 102 is in communication connection with the motor control board 103, that is, the RS232 communication interface of the operation panel 102 and the RS232 communication interface of the protocol converter 111 (preferably RS232 to CAN converter) are connected, the CAN interface of the protocol converter 111 is connected with the CAN interface of the motor control board 103; the CAN interface of the motor control board 103 is in communication connection with the second socket 108, for the small current (current ≤ 3A) motor to be tested, the motor to be tested can be directly inserted into the second socket 108 during the test, and the overload capacity and protection capacity of the motor after the motor is blocked are obtained by using the motor control board 103; the CAN interface of the motor control board 103 is also connected with the CAN interface of the motor driver 104, and the motor driver 104 and the motor control board 103 are in communication connection with the third socket 109, the third socket 109 is used for connecting the large current motor (current > 3A) to be tested, and the motor driver 104 is used to drive the large current motor to be tested, so as to realize the blocking test of the large current motor to be tested.
[0026] The motor fixing frame 20 comprises a motor fixing plate 201 arranged vertically and a plurality of locking plates 202 fixedly connected to the motor fixing plate 201, and further comprises a bottom support plate 203, the motor fixing plate 201 is fixed to the bottom support plate 203, and a reinforcing inclined support is arranged between the motor fixing plate 201 and the bottom support plate 203, so as to improve the structural strength and stability of the motor fixing frame 20; the motor fixing plate 201 is provided with a plurality of through holes for the motor shafts of the motors to be tested to pass through, and the motor shafts or moving nuts of the motors to be tested are fixedly connected to the locking plates 202, and when the motor to be tested is a screw rod motor, the moving nut thereof is fixedly connected to the locking plate 202, so as to realize blocking. The motor fixing frame 20 of the utility model can fix a plurality of motors to be tested, and the plurality of second sockets 108 and the plurality of third sockets 109 are arranged on the shell 101 correspondingly, so that the blocking test of a plurality of motors to be tested can be realized at the same time, the operation is simple and convenient, the batch test of the motors to be tested can be realized, and the test efficiency is improved.
[0027] In actual test, the utility model has the following three situations: when the object to be tested is a motor with a current ≤ 3A, the motor is fixed on the motor fixing plate 201, and the motor shaft or nut thereof is locked by the locking plate 202, and the plug thereof is inserted into the second socket 108; the utility model is electrically connected with indoor power supply by using a power line (one end of the power line is electrically connected with an indoor electric socket, and the other end is inserted into the power line socket on the shell 101), the power switch 106 is turned on, instructions can be sent from the operation panel 102 to the motor control board 103 (parameters such as certain current, rotating speed and rotating direction can be set), the motor control board 103 controls the rotation of the motor, the current and rotating speed of the motor are obtained during the rotation process, the overload capacity and protection capacity of the motor can be determined according to the current and surface temperature rise of the motor after the motor is blocked, and the circuit principle block diagram is shown in Figure 5 ;
[0028] When the current of the motor to be tested is greater than 3A, the plug of the motor to be tested is inserted into the third socket 109, and after the motor to be tested and the motor shaft or the moving nut are fixed, the operation panel 102 sends a signal to the motor driver 104 through the motor control panel 103, the motor driver 104 transmits the received signal to the motor to be tested, and the motor to be tested transmits the signal to the motor control panel 103 during the working process, so as to obtain the locked-rotor current, surface temperature rise and other parameters of the motor, further determine the overload capacity and protection capacity of the motor, and provide data support for selection or replacement of the motor, and the circuit principle diagram is shown in Figure 6 .
[0029] When the detection object is a working pump with a motor, the power plug of the pump is inserted into the first socket 107, the power switch 106 and the direct current output switch are turned on, the rated current after power-on is observed, or the rotor part of the pump is touched by hand to feel whether the rotor part of the pump has a vibration feeling, the locked-rotor current, surface temperature rise and other parameters of the motor are obtained, and then the overload capacity and protection capacity of the working pump are judged, and data support is provided for selection or replacement of the working pump.
[0030] When the detection object is a working electromagnetic valve, the power plug of the valve is inserted into the first socket 107, the power switch 106 and the direct current output switch are turned on, the rated current after power-on is observed, or the valve body is touched by hand to feel whether the valve body has a vibration feeling, the locked-rotor current, surface temperature rise and other parameters of the valve are obtained, and then the overload capacity and protection capacity of the working electromagnetic valve are judged, and data support is provided for selection or replacement of the motor on the instrument.
[0031] The utility model discloses a power module, driver and motor control panel are centrally installed in the shell 101, not only can satisfy the test demand of large current motor (the motor of current is above 3A), still can satisfy the test demand of small current motor (the current is within 3A), still can satisfy the test of direct current load electric element (such as various working pumps with motor) on the instrument, can realize the test of multiple motors or multiple direct current load electric element, improve test efficiency. In addition, the utility model discloses that each electric element of control system 10 is integrated in the shell 101, need not on-site joint circuit, and the volume is small and nimble, and convenient transfer, for the working pump after installation, can directly take the control system 10 of the utility model to the position where the instrument is, and the working pump (or electromagnetic valve etc.) is electrically connected with the first socket 107, and the operation is simple and convenient.
[0032] In actual installation, an installation hole is formed in one of the side walls of the shell 101, and a cooling fan 110 is installed in the installation hole, and the power module 105 and the cooling fan 110 are electrically connected, and the specific structure is shown in Figure 2In actual testing, after the power switch 106 is turned on, the heat dissipation fan 110 works to discharge the hot air in the shell 101, so as to achieve heat dissipation and ensure the normal work of the power supply devices. Of course, in actual processing, a plurality of heat dissipation holes (the heat dissipation holes can be round holes or long holes) can be formed on the side wall of the shell 101, so as to further promote the exchange between the shell 101 and the outside air and promote heat dissipation.
[0033] In actual installation, the bottom wall of the shell 101 is provided with a support foot, preferably a rubber support foot, for convenient placement, and one side wall of the shell 101 is provided with a handle for flexible transfer and convenient testing.
[0034] In combination with Figure 4 It can be seen that the locking plate 202 is a plate body with a planar structure or a plate body with a U-shaped structure. In actual testing, a suitable locking plate 202 can be selected flexibly according to the motor to be tested. Specifically, when the motor to be tested is a lead screw motor or a stepper motor, the locking plate 202 is planar, when the motor to be tested is a lead screw motor A1, the lead screw of the lead screw motor A1 passes through the locking plate 202, the moving nut A1.1 on the lead screw is fixed on the locking plate 202 by bolts, the locking plate 202 is fixed on the motor fixing plate 201 by bolts, the lead screw motor A1 is fixed on the locking plate 202, so as to realize the locking of the lead screw motor; when the motor to be tested is a stepper motor A2, the motor shaft passes through the locking plate 202 and is fastened by a fastening bolt; when the motor to be tested is an extension shaft motor A3, the locking plate 202 is preferably a U-shaped structure, the locking plate 202 and the motor shaft of the extension shaft motor A3 are connected together and the two ends thereof are fixed on the motor fixing plate 201 by bolts.
[0035] Finally, it should be further emphasized that the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still make modifications to the technical solutions recorded in the foregoing embodiments without creative labor, or make equivalent replacement to some technical features. Thus, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A portable locked rotor test device, characterized by: The control system comprises a housing, an operation panel arranged on the housing, a motor control board, a motor driver and a power module arranged in the housing, and the power module supplies power for the operation panel, the motor control board, the motor driver, a motor to be detected and a DC load component; A plurality of first sockets, second sockets and third sockets are arranged on the side wall of the housing, the power module supplies power for the first sockets, the second sockets and the third sockets, and the first sockets are DC load sockets; the operation panel is in communication connection with the motor control board, the motor control board is in communication connection with the second sockets, the motor control board is in communication connection with the motor driver, and the motor driver is connected with the third sockets; The motor fixing frame comprises a vertically arranged motor fixing plate and a plurality of locking plates fixed on the motor fixing plate, the motor fixing plate is provided with a plurality of through holes for the motor shafts of the motors to be detected to pass through, and the motor shafts or moving nuts of the motors to be detected are fixed with the locking plates.
2. The portable motor locked-rotor testing device of claim 1, wherein: A mounting hole is arranged on one side wall of the housing, and a cooling fan in the mounting hole is electrically connected with the power module.
3. The portable motor locked-rotor testing device of claim 1, wherein: Supporting legs are arranged on the bottom wall of the housing, and a handle is arranged on one side wall of the housing.
4. The portable motor locked-rotor testing device of claim 1, wherein: The locking plates are plate bodies with a planar structure or a U-shaped structure.
5. The portable motor locked-rotor testing device of claim 1, wherein: An RS232 communication interface of the operation panel is connected with an RS232 communication interface of a protocol converter, and a CAN interface of the protocol converter is connected with a CAN interface of the motor control board.