A new type of drive shaft performance detection device based on photoelectric switch

Abstract

A new type of drive shaft performance detection device based on photoelectric switches includes a workbench, an electric linear slide, a motor reduction mechanism, a display mechanism, and a detection mechanism; a support plate is installed at the rear side end of the workbench, the first set of electric linear slides is installed at the lower end of the support plate, there is an open groove on one end of the workbench, and the second set of electric linear slides is installed in the open groove; the upper end of the sliding block of the second set of electric linear slides is installed with a left fixed seat, a left bearing seat, a left support rod, and a left fixed ring; the other end of the workbench has a right fixed seat, a right bearing seat, a right support rod, and a right fixed ring, the motor reduction mechanism is installed on the side end of the right fixed seat, and its rotating shaft and the right fixed rod are installed together; the detection mechanism and the display mechanism are installed on the side end of the sliding block of the first set of electric linear slides. This new type can detect the lateral straightness of the drive shaft at different angles; when the drive shaft is deformed, it can immediately remind the detection personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a novel drive shaft performance detection device based on a photoelectric switch. Background Art

[0002] In order to work stably and reliably, the drive shafts used to drive the power of various equipment need to maintain lateral straightness. Manufacturers who produce drive shafts or use drive shafts to produce other equipment will test the lateral straightness of all or part of the drive shafts (for example, old drive shafts need to be tested before they are used again).

[0003] In the prior art, especially for smaller-scale manufacturers, due to limitations such as capital investment, the straightness of the drive shaft is generally tested in the following ways. First: the square ruler test method, specifically, two square rulers are set at both ends of the shaft to be tested, and probes are hung on the two square rulers. The probes are adjusted to the same horizontal plane, and the readings of the probes are recorded. Then, the shaft is flipped 180 degrees, and the readings of the probes are recorded again. By comparing the difference between the two readings, the straightness of the shaft can be determined. Second: the internal measurement fine-tuning rod test method, specifically, the shaft to be tested is clamped in two V-shaped clamps, and then a point is selected on the shaft to determine the reference point for measurement, and then the internal measurement fine-tuning rod is installed on the reference point for testing. The straightness of the shaft can be determined by the reading of the fine-tuning rod. Although the above two methods meet the needs of detection to a certain extent, they require more manual operations and manual identification, calculation and judgment of data by the detection personnel throughout the process, which will bring inconvenience to the detection personnel and is not conducive to improving work efficiency. In addition, they are affected by the different detection skills of the detection personnel. When the detection personnel do not have sufficient detection knowledge, when the actual straightness of the drive shaft is unqualified, it cannot be guaranteed that the detection personnel can grasp the relevant data in time, so the detection data cannot be guaranteed to be true and reliable. In summary, it is particularly necessary to provide a device that can bring convenience to the detection personnel, improve work efficiency, and ensure the authenticity of the detection data as much as possible. Utility Model Content

[0004] In order to overcome the drawbacks of existing drive shaft detection equipment and detection methods due to technical limitations as described in the background, the utility model provides a new drive shaft performance detection device based on photoelectric switches, which can automatically control the detection head to detect various surfaces of the drive shaft rod horizontally under the action of relevant mechanisms, and can immediately remind the detection personnel when the upper or lower straightness of the drive shaft rod is unqualified during the detection. After receiving the prompt, the detection personnel can understand the degree of defects of the drive shaft rod in detail by observing the data displayed on the display table, thereby bringing convenience to the detection personnel, correspondingly improving the detection efficiency, and making the detection data as real and reliable as possible.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A novel drive shaft performance detection device based on photoelectric switches comprises a workbench, an electric linear slide, and a motor reduction mechanism, and is characterized in that it also has a display mechanism and a detection mechanism; a support plate is installed at the rear side end of the workbench, and there are at least two sets of electric linear slides, the first set of electric linear slides is installed at the lower end of the support plate, and an open groove is provided at one end of the workbench, and the second set of electric linear slides is installed in the open groove; a left fixed seat is installed at the upper end of the sliding block of the second set of electric linear slides, a left bearing seat is installed at the upper end of the left fixed seat, a left support rod is rotatably installed on the left bearing seat, and a left fixed ring is installed at the side end of the left support rod; the workbench There is a right fixed seat on the other end, a right bearing seat is installed on the upper end of the right fixed seat, a right support rod is rotatably installed on the right bearing seat, a right fixed ring is installed on one side end of the right support rod, a motor reduction mechanism is installed on the side end of the right fixed seat and the rotating shaft of the motor reduction mechanism and the other side end of the right fixed rod are installed together; the detection mechanism includes at least two photoelectric switches and a prompt circuit, the two photoelectric switches are installed at the lower end of the sliding block of the first set of electric linear slides, the display mechanism is equipped with a resistance and voltage display meter, and the display mechanism is installed on the side end of the sliding block of the first set of electric linear slides; the prompt circuit, the resistance and voltage display meter of the display mechanism are installed in the component box.

[0007] Preferably, the first set of electric linear slides and the second set of electric linear slides are in a vertical plane, and the left fixed seat and the right fixed seat are at the same plane height.

[0008] Preferably, the left fixing ring and the right fixing ring are at the same plane height, and the inner sides of the left fixing ring and the inner sides of the right fixing ring are respectively provided with limiting grooves.

[0009] Preferably, the display mechanism includes a spring, a guide cylinder, a pressure resistor, and a movable rod. The pressure resistor is installed at the inner upper end of the guide cylinder. The lower end of the guide cylinder has a guide hole. The movable rod is movably sleeved in the guide hole. A guide block is installed at the upper end of the movable rod. The spring is arranged between the upper end of the guide block and the force-bearing surface of the pressure resistor. A contact plate is installed at the lower end of the movable rod.

[0010] Preferably, the height of the lower end of the movable rod is lower than the height of the upper ends of the left fixing ring and the right fixing ring.

[0011] Preferably, the prompt circuit includes an electrically connected relay and a buzzer, and is connected to two photoelectric switches. The positive power input terminals of the two photoelectric switches are connected to the relay control power input terminal, the power output terminal of the second photoelectric switch is connected to the positive power input terminal of the relay, the normally closed contact terminal of the relay, the power output terminal of the first photoelectric switch and the positive power input terminal of the buzzer are connected, and the negative power input terminals of the two photoelectric switches are connected to the negative power input terminal of the relay and the negative power input terminal of the buzzer.

[0012] Preferably, the resistor, voltage display meter and pressure resistor of the display mechanism are electrically connected, one end of the pressure resistor is connected to one end of the resistor and the positive power input terminal of the voltage display meter, and the other end of the resistor is connected to the negative power input terminal of the voltage display meter.

[0013] Compared with the prior art, the utility model has the following beneficial effects: (1) the utility model can control the second set of electric linear slides to fix the driving shaft to be tested through the left fixing ring and the right fixing ring, and the rotating shaft of the motor reduction mechanism can drive the driving shaft to rotate the angle, so as to detect the lateral straightness of the driving shaft at different angles; (2) the first set of electric linear slides can drive the display mechanism and the detection mechanism to move left or right, and the detection mechanism can immediately issue an alarm when the driving shaft to be tested is deformed up or down (that is, the straightness is not good), and the detection personnel can timely understand the specific degree of defects of the driving shaft through the data displayed by the display mechanism, which brings convenience to the detection personnel, improves the detection efficiency, and makes the detection data as true and reliable as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model and its partially enlarged structure.

[0016] Figure 2 This is a circuit diagram of the utility model. DETAILED DESCRIPTION

[0017] Figure 1 , 2 As shown in the figure, the new drive shaft performance detection device based on photoelectric switch includes a power module T1, power switches S, S1, S2, a hollow workbench 1, an electric linear slide M and M1, a motor reduction mechanism M2, and also has a display mechanism and a detection mechanism; the rear side end of the workbench 1 is welded with a Type support plate 101, there are two sets of electric linear slides, the upper end of the shell of the first set of electric linear slides M is transversely fixedly installed in the middle of the front lower end of the support plate 101 and its sliding block is located at the lower part, and there is an open groove 102 transversely in the upper middle part of the left end of the workbench, and the upper ends of the shell of the second set of electric linear slides M1 are fixedly installed on both sides of the lower end of the open groove 102 and its sliding blocks are located in the open groove 102 (the front-to-back length of the sliding block is less than the front-to-back width of the open groove); a left fixed seat 3 is vertically welded to the upper end of the sliding block of the second set of electric linear slides M1, a left bearing seat 31 is fixedly installed on the upper end of the left fixed seat 3, a left support rod 32 is transversely tightly sleeved in the inner ring of the bearing of the left bearing seat 31, and a left fixed ring 33 with an open structure at the right end is welded to the right side of the left support rod 32; a right fixed seat 4 is welded to the upper middle part of the right end of the workbench 1, a right bearing seat 41 is fixedly installed on the upper end of the right fixed seat 4, and the inner ring of the bearing of the right bearing seat 41 is transversely tightly sleeved There is a right support rod 42, and a right fixing ring 43 with an open structure at the left end is welded on the left side of the right support rod 42. The left side of the housing of the motor reduction mechanism M2 is fixedly installed on the right side end of the right fixing seat 4, and the left side of the rotating shaft of the motor reduction mechanism M2 and the right side of the right fixing rod 42 are welded together (the corresponding position of the right fixing seat at the connection between the two has a transverse through hole larger than the outer diameter of the two); the detection mechanism includes two photoelectric switches T2 and T3 and a prompt circuit 5, the housings of the two photoelectric switches T2 and T3 are vertically distributed and fixedly installed at the lower end of the sliding block of the first set of electric linear slide M, and the detection heads of the two photoelectric switches T2 and T3 face the lower end, and the display mechanism is equipped with a resistor R1 and a voltage display meter V, and the display mechanism is installed on the left end of the sliding block of the first set of electric linear slide M; the power module T1, the power switch, the prompt circuit 5, the resistor R1 and the voltage display meter V of the display mechanism are installed on the circuit board in the component box 6, and the component box 6 is fixedly installed on the upper left front side of the workbench 1. All power switch handles are located outside the front opening of the component box.

[0018] Figure 1 , 2As shown in the figure, the first electric linear slide M and the second electric linear slide M1 are in a vertical plane, and the left fixing seat 3 and the right fixing seat 4 are at the same plane height. The left fixing ring 33 and the right fixing ring 43 are at the same plane height, and the inner side of the left fixing ring 33 and the inner side of the right fixing ring 43 respectively have a conical hollow limiting groove 34 and 44 (which can effectively fix the drive shaft 7 with different outer diameters). The display mechanism includes a spring 8, a rectangular guide cylinder 9, a pressure resistor RT, and a movable rod 10. The pressure resistor RT is welded to the lower end of a circuit board. The circuit board is installed at the inner upper end of the guide cylinder 9 and the pressure resistor RT force surface faces downward. There is a guide hole in the middle of the lower end of the guide cylinder 9. The middle of the movable rod 10 is movably sleeved in the guide hole. A rectangular guide block 12 with an outer diameter smaller than the inner diameter of the guide cylinder is welded to the upper end of the movable rod 10. The spring 8 (a rubber insulating sheet is glued to the upper part to play an insulating buffer role) is arranged between the upper end of the guide block 12 and the pressure resistor RT force surface (the wire connected to the pressure resistor RT is led outward through the opening at the upper end of the guide cylinder). A contact plate 13 is longitudinally installed at the lower end of the movable rod. The upper right outer end of the guide cylinder 9 is horizontally welded to the left end of the sliding block of the first set of electric linear slide M. The lower end height of the contact plate 13 is lower than the height of the upper ends of the left fixing ring 33 and the right fixing ring 43. The prompt circuit includes a relay J1 and a buzzer B1 connected by circuit board wiring, and is connected to two photoelectric switches T2 and T3 through wires. The positive power input terminals of the two photoelectric switches T2 and T3 are connected to the control power input terminal of the relay J1, the power output terminal pin 3 of the second photoelectric switch T3 is connected to the positive power input terminal of the relay J1, the normally closed contact terminal of the relay J1 and the power output terminal pin 3 of the first photoelectric switch T2 are connected to the positive power input terminal of the buzzer B1, and the negative power input terminal pin 2 of the two photoelectric switches T2 and T3 are connected to the negative power input terminal of the relay J1 and the negative power input terminal of the buzzer B1. The resistor R1, the voltage display meter V and the pressure resistor RT of the display mechanism are connected through wires, one end of the pressure resistor RT is connected to one end of the resistor R1 and the positive power input terminal of the voltage display meter V, and the other end of the resistor R1 is connected to the negative power input terminal of the voltage display meter V.

[0019] Figure 1 , 2 As shown in the figure, the power input terminals 1 and 2 of the power module T1 and the two poles of the AC 220V power supply are connected via wires, respectively; the power output terminals 3 and 4 of the power module T1 and the power input terminals 1 and 2 of the power switches S, S1, and S2, the other end of the pressure resistor RT of the display mechanism and the other end of the resistor R1, and the power input terminal photoelectric switch T2 of the detection mechanism are connected via wires, respectively; the power output terminals 3, 4 and 5, 6 of the three power switches S, S1, and S2 and the positive and negative and negative-positive power input terminals of the two sets of electric linear slides M and M1, and the positive and negative and negative-positive power input terminals of the motor reduction mechanism M2 are connected via wires.

[0020] Figure 1 , 2 As shown in , after the power input terminal of the power module T1 is energized, its pins 3 and 4 output a stable DC 24V power supply which enters the power input terminals of the power switches S, S1, S2 and the display mechanism and the detection mechanism. After the staff turns the handle of the power switch S1 to the left or right, pins 1, 2 and pins 3, 4 and pins 5, 6 of the power switch S1 are connected respectively, and the positive and negative or negative and positive power input terminals of the electric linear slide M1 are energized; after the positive and negative power input terminals of the electric linear slide M1 are energized, its sliding block drives the left fixed seat 3, the left fixed ring 33, etc. to move to the left, and the distance between the inner sides of the left fixed ring 33 and the right fixed ring 43 is enlarged, so that the detection personnel can manually or hoist the drive shaft 7 between the left fixed ring 33 and the right fixed ring 43. Between the inner sides of the fixed circle 43, or after subsequent inspection, the driving shaft is taken out from between the inner sides of the left fixed circle 33 and the right fixed circle 43 (turn off the power switch after it is in place); after the negative and positive power input terminals of the electric linear slide M1 are energized, its sliding block drives the left fixed seat 3, the left fixed circle 33, etc. to move to the right, and the distance between the inner sides of the left fixed circle 33 and the right fixed circle 43 is reduced. In this way, the driving shaft 7 can be fixed between the inner sides of the left fixed circle 33 and the right fixed circle 43 (turn off the power switch after it is in place), preparing for subsequent inspection. After the staff turns the handle of the power switch S2 to the left or right, pins 1, 2 and 3, 4 and 5, 6 of the power switch S2 are connected respectively, and the positive and negative or negative and positive power input terminals of the motor reduction mechanism M2 are energized; after the positive and negative power input terminals of the motor reduction mechanism M2 are energized, its rotating shaft drives the driving shaft 7 to rotate clockwise to detect the surface straightness of the corresponding position of its upper end (turn off the power switch S2 after it is in place); after the negative and positive power input terminals of the motor reduction mechanism M2 are energized, its rotating shaft drives the driving shaft 7 to rotate counterclockwise to detect the surface straightness of the corresponding position of its upper end (turn off the power switch S2 after it is in place). After the staff turns the handle of the power switch S to the left or right, pins 1, 2 and 3, 4 and 5, 6 of the power switch S are connected respectively, and the positive and negative or negative-positive power input terminals of the electric linear slide M are energized; after the positive and negative power input terminals of the electric linear slide M are energized, its sliding block drives the detection mechanism and the display mechanism to gradually move to the left, and the straightness of the upper end of the driving shaft is detected (turn off the power switch S after it is in place); after the positive and negative power input terminals of the electric linear slide M are energized, its sliding block drives the detection mechanism and the display mechanism to gradually move to the right, and the straightness of the upper end of the driving shaft is detected (turn off the power switch S after it is in place).

[0021] Figure 1 , 2As shown, after the detection mechanism is powered on, if there is no defective convexity on the surface of the corresponding position of the detected driving shaft 7, the infrared light beam emitted by the detection head of the photoelectric switch T2 is not blocked and its pin 3 does not output a high level, then the buzzer B1 will not be powered on and make a sound; if there is a defective convexity on the surface of the corresponding position of the detected driving shaft 7, the infrared light beam emitted by the detection head of the photoelectric switch T2 is blocked by the convex surface and its pin 3 outputs a high level and enters the positive power input terminal of the buzzer B1, then the buzzer B1 will be powered on and make a sound to remind the measurement personnel. If there is no defective concave on the surface of the corresponding position of the detected driving shaft 7, the infrared light beam emitted by the detection head of the photoelectric switch T3 is blocked, and its 3rd foot outputs a high level and enters the positive power input terminal of the relay J1. The relay J1 is energized to attract its control power input terminal and the normally closed contact terminal to open, and then the buzzer B1 will not be energized to make a sound; if there is a defective concave on the surface of the corresponding position of the detected driving shaft 7, the infrared light beam emitted by the detection head of the photoelectric switch T3 is not blocked, and its 3rd foot no longer outputs a high level and enters the positive power input terminal of the relay J1. The relay J1 loses power and no longer attracts its control power input terminal and the normally closed contact terminal to close, and then the buzzer B1 will be energized to make a sound. Through the above, the new type can drive the detection mechanism from right to left or from left to right for detection by the electric linear slide, and when the detected shaft rod surface is convex or concave, the buzzer B1 will give an alarm prompt, and the straightness of the corresponding position of the driving shaft rod surface aligned with the lower ends of the detection heads of the photoelectric switches T2 and T3 can be timely understood through the voltmeter V (to prevent the detection personnel from not observing the corresponding detection data in real time, and to prevent the inconvenience caused to the staff by visually observing the data by the voltmeter V when there is no problem).

[0022] Figure 1 , 2As shown, after the display mechanism is powered on, the outer side of the lower end of the contact plate 13 (the lower part of the left and right side ends is a conical structure) contacts the driving shaft 7. When the outer diameter of the driving shaft 7 becomes larger or the corresponding position is convex, the contact plate 13 will overcome the elastic force of the spring 8 and push the movable rod 11 to move upward along the guide cylinder 9 through the guide block 12. The guide cylinder 9 compresses the spring relatively tightly, and the force acting on the force surface of the pressure resistor RT by the upper end of the spring is relatively large. The resistance value of the pressure resistor RT is relatively small, and the voltage divided by it and the resistor R1 is small. Then, the voltage number displayed on the voltage display table V is relatively large. When the outer diameter of the driving shaft 7 becomes smaller or the corresponding position is concave, the elastic force of the spring 8 (although the spring can absorb part of the potential energy, the pressure of the upper end of the spring on the pressure resistor RT will still change greatly after compression and release) will push the movable rod 11 to move downward along the guide cylinder 9 through the guide block 12, and the contact plate 13 will move downward. The spring compressed by the guide cylinder 9 is relatively loose, and the upper end of the spring acts on the force surface of the pressure resistor RT. The resistance value of the pressure resistor RT is relatively large, and the voltage divided between it and the resistor R1 is large, so the voltage number displayed on the voltage display meter V is relatively small. Through the above, the new type can indicate whether the driving shaft under test has a problem of unqualified straightness through the voltage number displayed on the voltmeter during the test (for example, when the display mechanism and the detection mechanism initially detect from the left end of the driving shaft, the voltage number displayed on the voltmeter is 4V as the reference voltage, and the subsequent observed data is 4.1V, 3.9V, etc., which means that the driving shaft has quality problems); in this application, the tester observes the voltage number displayed on the voltmeter V after hearing the buzzer B1 sound.

[0023] Figure 1 , 2 As shown, through the above, the new type can detect the lateral straightness of the drive shaft at different angles; when the detected drive shaft is deformed upward or downward (that is, the straightness is not good), an alarm can be sounded immediately, and the detection personnel can timely understand the specific degree of defects of the drive shaft through the data displayed by the display mechanism, which brings convenience to the detection personnel, improves the detection efficiency, and makes the detection data as real and reliable as possible. Figure 2As shown, the power supply mechanism W1 is a finished product of an AC 220V to DC 24V switching power supply module; the resistance value of the resistor R1 is 4.7K; the model of the relay J1 is DC24V; the pressure resistor RT is a resistance value pressure resistor of the model FSR402; the voltmeter V is a 24V DC liquid crystal voltage display meter; the buzzer B1 is an active continuous sound buzzer alarm of the model FM24V; the electric linear slides M and M1 are finished products of electric lead screw slides with a power of 80W; the motor reduction mechanism M2 is a finished product of a motor gear reducer with a power of 100W; the photoelectric switches T2 and T3 are high-precision switch products of the brand SICKFA and the model CDD-11N, which have two power input terminals and a signal output terminal. When working, the infrared beam emitted by the transmitter head is When blocked by objects within a certain distance, the signal output end outputs power, otherwise it does not output. The upper left end of the photoelectric switch shell has a distance adjustment knob. When adjusted to the left, the detection distance becomes farther, and vice versa (the maximum detection distance is 20 cm). Before the new detection, when the detection mechanism and the display structure are respectively located at the left end or the right end of the driving shaft (this position is used as the detection reference, and it can also be adjusted to any position on the upper end of the driving shaft as the detection reference), the staff adjusts the knobs of the photoelectric switches T2 and T3 respectively, and adjusts them to the point where the buzzer B1 sounds, and then adjusts the knobs of the photoelectric switches T2 and T3 in the opposite direction. When the buzzer B1 does not sound, the detection distance needs to be adjusted. In subsequent actual detection, when the driving shaft is deformed up or down, the buzzer B1 will sound for the first time.

[0024] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the utility model.

[0025] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new type of drive shaft performance detection device based on photoelectric switches, including a workbench, an electric linear slide, and a motor reduction mechanism, characterized in that: It also has a display mechanism and a detection mechanism; a support plate is installed at the rear side end of the workbench, and there are at least two sets of electric linear slides, the first set of electric linear slides is installed at the lower end of the support plate, and there is an open groove at one end of the workbench, and the second set of electric linear slides is installed in the open groove; a left fixed seat is installed at the upper end of the sliding block of the second set of electric linear slides, and a left bearing seat is installed at the upper end of the left fixed seat, a left support rod is rotatably installed on the left bearing seat, and a left fixed ring is installed at the side end of the left support rod; a right fixed seat is installed at the other end of the workbench, and a right shaft is installed at the upper end of the right fixed seat A bearing seat, a right support rod is rotatably installed on the right bearing seat, a right fixing ring is installed on one side end of the right support rod, a motor reduction mechanism is installed on the side end of the right fixing seat and the rotating shaft of the motor reduction mechanism and the other side end of the right fixing rod are installed together; the detection mechanism includes at least two photoelectric switches and a prompt circuit, the two photoelectric switches are installed at the lower end of the sliding block of the first set of electric linear slides, the display mechanism is equipped with a resistance and voltage display meter, and the display mechanism is installed on the side end of the sliding block of the first set of electric linear slides; the prompt circuit, the resistance and voltage display meter of the display mechanism are installed in the component box.

2. According to the novel drive shaft performance detection device based on photoelectric switch according to claim 1, it is characterized in that: The first set of electric linear slides and the second set of electric linear slides are in a vertical plane, and the left fixed seat and the right fixed seat are in the same plane height.

3. The novel drive shaft performance detection device based on photoelectric switch according to claim 1 is characterized in that: The left fixing ring and the right fixing ring are at the same plane height, and the inner sides of the left fixing ring and the inner sides of the right fixing ring are respectively provided with limiting grooves.

4. The novel drive shaft performance detection device based on photoelectric switch according to claim 1 is characterized in that: The display mechanism includes a spring, a guide cylinder, a pressure resistor, and a movable rod. The pressure resistor is installed at the inner upper end of the guide cylinder. The lower end of the guide cylinder is provided with a guide hole. The movable rod is movably sleeved in the guide hole. A guide block is installed at the upper end of the movable rod. The spring is arranged between the upper end of the guide block and the force-bearing surface of the pressure resistor. A contact plate is installed at the lower end of the movable rod.

5. The novel drive shaft performance detection device based on photoelectric switch according to claim 4 is characterized in that: The height of the lower end of the movable rod is lower than the height of the upper ends of the left fixing ring and the right fixing ring.

6. The novel drive shaft performance detection device based on photoelectric switch according to claim 1 is characterized in that: The prompt circuit includes an electrically connected relay and a buzzer, and is connected to two photoelectric switches. The positive power input terminals of the two photoelectric switches are connected to the relay control power input terminal, the power output terminal of the second photoelectric switch is connected to the positive power input terminal of the relay, the normally closed contact terminal of the relay, the power output terminal of the first photoelectric switch and the positive power input terminal of the buzzer are connected, and the negative power input terminals of the two photoelectric switches are connected to the negative power input terminal of the relay and the negative power input terminal of the buzzer.

7. The novel drive shaft performance detection device based on photoelectric switch according to claim 1 is characterized in that: The resistor, voltage display meter and pressure resistor of the display mechanism are electrically connected, one end of the pressure resistor is connected to one end of the resistor and the positive power input terminal of the voltage display meter, and the other end of the resistor is connected to the negative power input terminal of the voltage display meter.

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