Driving wheel heavy load detection device

Abstract

The utility model discloses a driving wheel heavy load detection device comprising a pressure assembly which comprises a driver M1 and a first driving shaft driven by the driver M1; the pressure assembly further comprises a pressure sensor U2 and a pressurization follower, the pressure sensor U2 is arranged in the outer contour body, the pressurization follower comprises the outer contour body and a follower wheel, the outer surface of the follower wheel makes contact with the outer surface of the driving wheel to be tested, and the follower wheel is driven by a driving motor M3. The driving wheel heavy load detection device disclosed by the utility model has the beneficial effects that based on the control circuit, under the driving of the driver M1, the first driving shaft drives the pressure sensor U2 and the pressurizing follower to lift.

Description

Technical Field

[0001] The utility model belongs to the field of driving wheel detection, and in particular relates to a driving wheel heavy load detection device. Background Art

[0002] The announcement number is CN214200605U, the subject name is the utility model patent of the driving wheel life test system, and its IPC classification number is G01M13 / 00. Its technical solution discloses that "the control system includes a host computer and a driver; the host computer is used to send a first control signal to the driver; the first control signal includes information for controlling the radial loading mechanism to drive the driving wheel and the load wheel to squeeze each other so as to generate the set radial force on the driving wheel; the driver is used to control the radial loading mechanism to drive the driving wheel and the load wheel to pressurize each other according to the first control signal so as to generate the set radial force on the driving wheel. The host computer is used to send a second control signal to the servo controller; the second control signal includes information for controlling the tangential loading mechanism to drive the load wheel to apply the set tangential force to the driving wheel."

[0003] It can be seen that the above utility model patent has disclosed a control system for the driving wheel life test system, and can be used to test the radial force and tangential force of the driving wheel, and records the transmission process of the electrical signal. However, the technical solution disclosed in the above utility model patent does not further extend to the circuit structure, which needs to be further improved. Utility Model Content

[0004] The utility model aims at the prior art, overcomes the above defects and provides a driving wheel heavy load detection device.

[0005] The utility model adopts the following technical scheme, the driving wheel overload detection device comprises:

[0006] A pressure assembly, the pressure assembly includes a driver M1 and a first drive shaft driven by the driver M1; the pressure assembly also includes a pressure sensor U2 and a boost follower, the pressure sensor U2 is built into the outer body, the boost follower includes an outer body and a follower wheel, the outer surface of the follower wheel contacts the outer surface of the drive wheel to be tested, and the follower wheel is driven by a drive motor M3;

[0007] The control circuit includes a microprocessor U1, wherein the P24 pin of the microprocessor U1 is connected to the ENA+ terminal of the drive motor M3 through a current limiting resistor R5, the P23 pin of the microprocessor U1 is connected to the DIR+ terminal of the drive motor M3 through a current limiting resistor R6, the P22 pin of the microprocessor U1 is connected to the PUL+ terminal of the drive motor M3 through a current limiting resistor R7, the P03 pin of the microprocessor U1 is connected to the SCK terminal of the pressure sensor U2, and the P04 pin of the microprocessor U1 is connected to the DT terminal of the pressure sensor U2; the P01 pin and the P02 pin of the microprocessor U1 are respectively connected to the peripheral circuit of the driver M1.

[0008] As a further preferred technical solution of the above technical solution, the peripheral circuit of the driver M1 includes a transistor Q1, a transistor Q2, a relay KM1 and a relay KM2, one end of the driver M1 is connected to the input end of the relay KM1, and the other end of the driver M1 is connected to the input end of the relay KM2; the base of the transistor Q1 is connected to the common end between the resistor R11 and the resistor R12, the collector of the transistor Q1 is connected to the positive electrode of the diode D1, the emitter of the transistor Q1 is connected to the resistor R11, and the resistor R12 is connected to the P01 pin of the microprocessor U1; the base of the transistor Q2 is connected to the common end between the resistor R21 and the resistor R22, the collector of the transistor Q2 is connected to the positive electrode of the diode D2, the emitter of the transistor Q2 is connected to the resistor R21, and the resistor R22 is connected to the P02 pin of the microprocessor U1.

[0009] As a further preferred technical solution of the above technical solution, the driving wheel heavy load detection device also includes a moving component, the moving component includes a driver M2 and a moving workbench driven by the driver M2, and the P06 pin and P07 pin of the microprocessor U1 are respectively connected to the peripheral circuit of the driver M2.

[0010] As a further preferred technical solution of the above technical solution, the peripheral circuit of the driver M2 includes a transistor Q3, a transistor Q4, a relay KM3 and a relay KM4, one end of the driver M2 is connected to the input end of the relay KM3, and the other end of the driver M2 is connected to the input end of the relay KM4; the base of the transistor Q2 is connected to the common end between the resistor R31 and the resistor R32, the collector of the transistor Q3 is connected to the positive electrode of the diode D3, the emitter of the transistor Q3 is connected to the resistor R31, and the resistor R32 is connected to the P06 pin of the microprocessor U1; the base of the transistor Q4 is connected to the common end between the resistor R41 and the resistor R42, the collector of the transistor Q4 is connected to the positive electrode of the diode D4, the emitter of the transistor Q4 is connected to the resistor R41, and the resistor R42 is connected to the P07 pin of the microprocessor U1.

[0011] As a further preferred technical solution of the above technical solution, the control circuit further includes a reset button K1 , and the reset button K1 is electrically connected to the P00 pin of the microprocessor U1 .

[0012] The driving wheel overload detection device disclosed in the utility model has the following beneficial effects:

[0013] 1. Based on the control circuit, driven by the driver M1, the first drive shaft drives the pressure sensor U2 and the boost follower to rise and fall.

[0014] 2. Based on the control circuit, under the drive of the driver M2, the mobile workbench drives the driving wheel to be tested to move. 3. Based on the control circuit, under the drive of the driving motor M3, the follower wheel drives the driving wheel to be tested to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of this application.

[0016] Figure 2 yes Figure 1 A partial enlarged view of area A.

[0017] Figure 3 It is a circuit schematic diagram of the control circuit of the present application.

[0018] The reference numerals include: 110 - pressure assembly; 111 - first driving shaft; 112 - boost follower; 113 - outer body; 114 - follower wheel; 120 - moving assembly; 121 - moving workbench; 200 - driving wheel to be tested (tested driving wheel). DETAILED DESCRIPTION

[0019] The utility model discloses a driving wheel overload detection device, which is described in conjunction with a preferred embodiment (embodiment 1) and with reference to the accompanying drawings. Figure 1-2 , the specific implementation methods of the utility model are further described.

[0020] See attached figure Figures 1 to 3 , Figure 1 The overall structure of the driving wheel overload detection device is shown. Figure 2 The partial enlarged structure of the driving wheel overload detection device is shown. Figure 3 The main circuit structure of the control circuit of the driving wheel heavy load detection device is shown.

[0021] Example 1.

[0022] Preferably, the driving wheel overload detection device is used to test the driving wheel 200 to be tested, and the driving wheel overload detection device includes:

[0023] The pressure assembly 110 includes a driver M1 and a first drive shaft 111 driven by the driver M1; under the drive of the driver M1, the first drive shaft 111 drives the pressure sensor U2 and the supercharger follower 112 to rise and fall; the pressure assembly 110 also includes the pressure sensor U2 and the supercharger follower 112, the pressure sensor U2 is built into the outer body 113, the supercharger follower 112 includes the outer body 113 and (two) follower wheels 114, (when the supercharger follower 112 descends to a preset position) the outer surface of the follower wheel 114 contacts the outer surface of the drive wheel 200 to be tested, the follower wheel 114 is driven by the drive motor M3, and under the drive of the drive motor M3, the follower wheel 114 drives the drive wheel 200 to be tested to rotate;

[0024] The control circuit includes a microprocessor U1, wherein the P24 pin of the microprocessor U1 is connected to the ENA+ terminal of the drive motor M3 through a current limiting resistor R5, the P23 pin of the microprocessor U1 is connected to the DIR+ terminal of the drive motor M3 through a current limiting resistor R6, the P22 pin of the microprocessor U1 is connected to the PUL+ terminal of the drive motor M3 through a current limiting resistor R7, the P03 pin of the microprocessor U1 is connected to the SCK terminal of the pressure sensor U2, and the P04 pin of the microprocessor U1 is connected to the DT terminal of the pressure sensor U2; the P01 pin and the P02 pin of the microprocessor U1 are respectively connected to the peripheral circuit of the driver M1, so that under the drive of the driver M1, the first drive shaft 111 drives the pressure sensor U2 and the boost follower 112 to rise and fall; at the same time, parameters such as the pressure detected by the pressure sensor U2 can be transmitted back to the microprocessor U1 from the DT terminal.

[0025] Among them, the peripheral circuit of the driver M1 includes a transistor Q1, a transistor Q2, a relay KM1 and a relay KM2, one end of the driver M1 is connected to the input end of the relay KM1, and the other end of the driver M1 is connected to the input end of the relay KM2; the base of the transistor Q1 is connected to the common end between the resistor R11 and the resistor R12, the collector of the transistor Q1 is connected to the positive electrode of the diode D1, the emitter of the transistor Q1 is connected to the resistor R11, and the resistor R12 is connected to the P01 pin of the microprocessor U1; the base of the transistor Q2 is connected to the common end between the resistor R21 and the resistor R22, the collector of the transistor Q2 is connected to the positive electrode of the diode D2, the emitter of the transistor Q2 is connected to the resistor R21, and the resistor R22 is connected to the P02 pin of the microprocessor U1, so that the microprocessor U1 can output the forward and reverse signal of the driver M1, so that the driver M1 can be forward and reversed (or stopped).

[0026] The driving wheel overload detection device further includes a moving assembly 120 , which includes a driver M2 and a moving workbench 121 driven by the driver M2 ; driven by the driver M2 , the moving workbench 121 drives the driving wheel 200 to be tested to move.

[0027] The P06 pin and the P07 pin of the microprocessor U1 are respectively connected to the peripheral circuit of the driver M2 , so that under the drive of the driver M2 , the mobile workbench 121 drives the driving wheel 200 to be tested to move.

[0028] Among them, the peripheral circuit of the driver M2 includes transistor Q3, transistor Q4, relay KM3 and relay KM4, one end of the driver M2 is connected to the input end of the relay KM3, and the other end of the driver M2 is connected to the input end of the relay KM4; the base of the transistor Q2 is connected to the common end between the resistor R31 and the resistor R32, the collector of the transistor Q3 is connected to the positive electrode of the diode D3, the emitter of the transistor Q3 is connected to the resistor R31, and the resistor R32 is connected to the P06 pin of the microprocessor U1; the base of the transistor Q4 is connected to the common end between the resistor R41 and the resistor R42, the collector of the transistor Q4 is connected to the positive electrode of the diode D4, the emitter of the transistor Q4 is connected to the resistor R41, and the resistor R42 is connected to the P07 pin of the microprocessor U1, so that the microprocessor U1 can output the forward and reverse signal of the driver M2, so that the driver M2 is forward and reversed (or stopped).

[0029] The control circuit further includes a reset button K1 , which is electrically connected to the P00 pin of the microprocessor U1 .

[0030] The driving wheel overload detection device further includes a display U3, and the P27 pin and the P26 pin of the microprocessor U1 are respectively connected to the SDA terminal and the SCL terminal of the display U3.

[0031] The model of the microprocessor U1 is preferably AT89C51.

[0032] Among them, the model of pressure sensor U2 is preferably PPMS226.

[0033] Among them, the model of display U3 is preferably LCD1602.

[0034] The working process of the driving wheel heavy load detection device of this embodiment is described below.

[0035] Specifically, when the heavy-load detection of the driving wheel begins, the equipment is powered on and starts self-testing. If the self-test is normal, initialization begins, so that the mobile workbench and other mechanisms return to the initial state. After the test starts, the mobile workbench automatically shifts, and the driving wheel to be tested is automatically or manually placed at the preset position of the mobile workbench. The mobile workbench moves the driving wheel to be tested to the preset position. After it is in place, the boost follower begins to descend until it contacts the driving wheel to be tested and applies a set pressure to the driving wheel. The drive motor that drives the driving wheel to be tested starts to run, and the display shows the electrical parameters such as the speed of the drive motor. After the test is completed, the boost follower begins to rise, and the mobile workbench automatically shifts, which facilitates the automatic or manual removal of the tested driving wheel from the mobile workbench.

[0036] It is worth mentioning that the technical features such as the specific selection of the driver M1 involved in this utility model patent application should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0037] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A driving wheel overload detection device, characterized in that: include: A pressure assembly, the pressure assembly includes a driver M1 and a first drive shaft driven by the driver M1; the pressure assembly also includes a pressure sensor U2 and a boost follower, the pressure sensor U2 is built into the outer body, the boost follower includes an outer body and a follower wheel, the outer surface of the follower wheel contacts the outer surface of the drive wheel to be tested, and the follower wheel is driven by a drive motor M3; The control circuit includes a microprocessor U1, wherein the P24 pin of the microprocessor U1 is connected to the ENA+ terminal of the drive motor M3 through a current limiting resistor R5, the P23 pin of the microprocessor U1 is connected to the DIR+ terminal of the drive motor M3 through a current limiting resistor R6, the P22 pin of the microprocessor U1 is connected to the PUL+ terminal of the drive motor M3 through a current limiting resistor R7, the P03 pin of the microprocessor U1 is connected to the SCK terminal of the pressure sensor U2, and the P04 pin of the microprocessor U1 is connected to the DT terminal of the pressure sensor U2; the P01 pin and the P02 pin of the microprocessor U1 are respectively connected to the peripheral circuit of the driver M1.

2. The driving wheel heavy load detection device according to claim 1, characterized in that: The peripheral circuit of the driver M1 includes a transistor Q1, a transistor Q2, a relay KM1 and a relay KM2. One end of the driver M1 is connected to the input end of the relay KM1, and the other end of the driver M1 is connected to the input end of the relay KM2; the base of the transistor Q1 is connected to the common end between the resistor R11 and the resistor R12, the collector of the transistor Q1 is connected to the positive electrode of the diode D1, the emitter of the transistor Q1 is connected to the resistor R11, and the resistor R12 is connected to the P01 pin of the microprocessor U1; the base of the transistor Q2 is connected to the common end between the resistor R21 and the resistor R22, the collector of the transistor Q2 is connected to the positive electrode of the diode D2, the emitter of the transistor Q2 is connected to the resistor R21, and the resistor R22 is connected to the P02 pin of the microprocessor U1.

3. The driving wheel heavy load detection device according to claim 1, characterized in that: The driving wheel overload detection device also includes a moving component, which includes a driver M2 and a moving workbench driven by the driver M2. The P06 pin and the P07 pin of the microprocessor U1 are respectively connected to the peripheral circuit of the driver M2.

4. The driving wheel heavy load detection device according to claim 3, characterized in that: The peripheral circuit of the driver M2 includes a transistor Q3, a transistor Q4, a relay KM3 and a relay KM4. One end of the driver M2 is connected to the input end of the relay KM3, and the other end of the driver M2 is connected to the input end of the relay KM4; the base of the transistor Q2 is connected to the common end between the resistor R31 and the resistor R32, the collector of the transistor Q3 is connected to the positive electrode of the diode D3, the emitter of the transistor Q3 is connected to the resistor R31, and the resistor R32 is connected to the P06 pin of the microprocessor U1; the base of the transistor Q4 is connected to the common end between the resistor R41 and the resistor R42, the collector of the transistor Q4 is connected to the positive electrode of the diode D4, the emitter of the transistor Q4 is connected to the resistor R41, and the resistor R42 is connected to the P07 pin of the microprocessor U1.

5. The driving wheel heavy load detection device according to claim 1, characterized in that: The control circuit further includes a reset button K1 , which is electrically connected to the P00 pin of the microprocessor U1 .

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