Generator display instrument inspection tool

Abstract

In order to solve the problems of complicated operation, low efficiency, easy false detection or misoperation and the like of a generator display instrument inspection method in the prior art, the utility model provides a generator display instrument inspection tool, which comprises a bottom plate, a push plate, an inching mechanism, a plugging mechanism and a switch box, the bottom plate is of a U-shaped structure; the push plate is of a rectangular frame structure; the number of the inching mechanisms is the same as that of the inching switches on the display circuit board, the inching mechanisms are installed on the push plate right above the corresponding inching switches respectively, and each inching mechanism comprises a base, a sliding rod, a reset spring, a cam and a motor I; the plugging mechanism is mounted on the push plate right above the control circuit board, and comprises a door-shaped frame, a sliding plate, a tooth column, a support plate, a gear, a wrench and an electric plug; the switch box comprises a substrate, a single-throw switch and a delay switch. The beneficial effects of the utility model are that the detection can be completed at the same operation position, the efficiency is improved, and false detection or misoperation is effectively avoided.

Description

Technical Field

[0001] The utility model relates to a generator display instrument inspection technology, in particular to a generator display instrument inspection tool. Background Art

[0002] As the main component of the generator controller, the generator display instrument is mainly used to display various parameters of the generator working status and adjust the generator working parameters. Usually, the generator display instrument is equipped with two circuit boards. One is the display circuit board, which is equipped with several digital display tubes or LCD screens and inching switches or buttons; the other is the control circuit board, which is equipped with various electronic components and wiring sockets. The two circuit boards are connected together by cables (see attached Figure 1 ). In order to ensure product quality, the generator display meter usually needs to be inspected after production is completed to ensure that the generator display meter produced meets the design requirements. The prior art generator display meter inspection method uses an analog device to output the signals of various parameters during generator operation, and uses a switch box to turn on or off each signal. A plug that matches the generator display meter socket is used to connect the switch box to the generator display meter to be inspected. Manual operation is used during inspection, that is, manually inserting the plug connected to the switch box into the socket of the generator display meter to be inspected; turning on or off the switches on the switch box one by one according to the inspection requirements (that is, inputting or disconnecting the signals of the generator operating parameters), and observing whether the data displayed on the digital tube meets the requirements; pressing the momentary switch on the generator display meter to be inspected according to the inspection requirements, and turning on or off the switches on the switch box one by one again, and observing whether the data displayed on the digital tube meets the requirements; repeating this operation until all parameters that need to be inspected are inspected (see Appendix Figure 2 ). Since the plug of the switch box is manually pulled out and plugged in, it is easy to cause poor contact of the plug, resulting in false detection; since the switches on the switch box need to be opened or closed manually one by one, and the inching switch on the display instrument of the generator to be tested needs to be pressed, and the two switches are not in the same position, it is easy to cause false operation.

[0003] Obviously, the existing generator display instrument inspection method has the problems of complicated operation, low efficiency and easy to cause misdetection or misoperation. Summary of the Invention

[0004] In order to solve the problems of the prior art generator display instrument inspection method, such as complicated operation, low efficiency and easy misdetection or misoperation, the utility model proposes a generator display instrument inspection tool.

[0005] The utility model generator display instrument inspection tool adopts analog equipment to output signals of various parameters of the generator during operation, and is characterized in that the inspection tool comprises a base plate, a push plate, a jog mechanism, a plug-in mechanism and a switch box; the base plate is a U-shaped structure, and two concave steps whose shapes and sizes match the appearances of the display circuit board and the control circuit board are provided at the bottom of the U-shaped base plate, and a trapezoidal slide Ⅰ is provided on the inner walls of the two side plates; the push plate is a rectangular frame structure, and a trapezoidal slide Ⅰ is provided on the outer sides of both ends, and is inserted into the trapezoidal slide Ⅰ of the base plate; a jog mechanism and a plug-in mechanism are fixed on the left and right sides of the upper surface of the push plate, respectively; the number of the jog mechanisms is the same as that of the jog switches on the display circuit board, and they are respectively installed on the opposite sides. The push plate directly above the corresponding moment switch includes a base, a slide rod, a return spring, a cam and a motor I; the base is a rectangular structure, and a sliding hole with a step is vertically downwardly provided at the front end of the base; the slide rod is a round rod with a step, and the small end is inserted downward into the sliding hole of the base; the return spring is sleeved on the small head of the slide rod, one end of which contacts the front end surface of the large end of the slide rod, and the other end contacts the end surface of the step of the base sliding hole; the motor I is fixed on the upper surface of the base, and the axis of the rotating shaft is perpendicular to the axis of the slide rod; the cam is installed at the end of the rotating shaft of the motor I, and is directly above the slide rod; the installation position of the moment mechanism is based on the lower end surface of the slide rod contacting the upper end surface of the button of the corresponding moment switch, and the axes of the two are coaxial; the plug-in mechanism The push plate installed just above the control circuit board includes a door-shaped frame, a slide plate, a gear column, a support plate, a gear, a wrench and an electric plug; the two legs of the door-shaped frame are fixed on the push plate frame, and a trapezoidal slide groove II is provided vertically downward on the inner side of the two legs, and a rectangular through hole is provided in the middle of the crossbeam; the slide plate is long and narrow, with trapezoidal slideways II provided at both ends, and is inserted into the trapezoidal slide groove II of the door-shaped frame; the cross section of the gear column is rectangular, inserted into the rectangular through hole of the door-shaped frame, and the lower end is fixedly connected to the upper surface of the slide plate; the support plate is a long strip plate, fixed to the lower surface of the slide plate; the gear is provided on the upper surface of the door-shaped frame beside the gear column, and meshes with the gear column; the wrench is fixed to the end of the gear shaft; the electric plug is fixed to the support plate The lower surface of the board has the same number of sockets as those on the control circuit board, and their fixed positions are based on the fact that each electrical plug is just inserted into the corresponding socket after the slide moves downward; the switch box includes a base plate, a single-throw switch and a time-delay switch; the base plate is a rectangular plate; the single-throw switches are installed on the base plate, and their number is the same as the number of generator operating parameters output by the analog device; the time-delay switches are installed on the base plate, and their number is the same as the number of motors of the inching mechanism; wherein the single-throw switch refers to a manual switch with only two switch positions of closing or opening, and is provided in the circuit connecting the analog device and the electrical plug; the time-delay switch refers to a switch whose contact is connected for a set time by pressing once, and is provided in the circuit connecting the drive power supply and the motor I.

[0006] Furthermore, the lower end of the slide rod is provided with a buffer device, including a top sleeve, an adjusting bolt, a buffer spring and a rubber top head; the top sleeve is a cylinder with a step at the bottom, which is sleeved on the lower end of the slide rod of the inching mechanism; the adjusting bolt passes through the step of the top sleeve to slide and fix the top sleeve to the lower end of the slide rod; the buffer spring is sleeved on the adjusting bolt, with one end in contact with the inner end face of the top sleeve step and the other end in contact with the lower end face of the slide rod; the surface of the rubber top head is spherical and is embedded in the opening at the lower end of the top sleeve step.

[0007] Furthermore, no wrench is fixed on the gear shaft of the plug-in mechanism, and motor II is fixedly installed axially on the gear shaft, and the shaft of motor II is connected to the gear shaft; and a control switch for motor II is provided on the switch box.

[0008] The beneficial technical effect of the generator display instrument inspection tool of the utility model is that the inspection can be completed at the same operating position, thereby improving efficiency and effectively avoiding misdetection or misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Attachment Figure 1 It is a three-dimensional schematic diagram of the generator display instrument;

[0010] Attachment Figure 2 It is a schematic diagram of a prior art generator display instrument detection method;

[0011] Attachment Figure 3 It is a three-dimensional schematic diagram of the utility model generator display instrument inspection tooling;

[0012] Attachment Figure 4 It is a three-dimensional schematic diagram of the inching mechanism of the utility model;

[0013] Attachment Figure 5 It is a cross-sectional schematic diagram of the inching mechanism of the utility model;

[0014] Attachment Figure 6 It is a three-dimensional schematic diagram of the plug-in mechanism of the utility model;

[0015] Attachment Figure 7 It is a three-dimensional schematic diagram of the plug-in mechanism of the utility model from another angle;

[0016] Attachment Figure 8 This is a three-dimensional schematic diagram of the utility model after the inspection tool is placed on the display instrument of the generator to be inspected;

[0017] Attachment Figure 9 It is a three-dimensional schematic diagram of the inspection status of the inspection tool of the utility model;

[0018] Attachment Figure 10 It is a three-dimensional schematic diagram of the switch box of the utility model;

[0019] Attachment Figure 11 It is a three-dimensional schematic diagram of another embodiment of the inching mechanism of the utility model;

[0020] Attachment Figure 12 It is a three-dimensional schematic diagram of another embodiment of the plug-in mechanism of the utility model.

[0021] In the figure, 1 is the bottom plate; 2 is the push plate; 3 is the inching mechanism, 3-1 is the base, 3-2 is the slide bar, 3-3 is the return spring, 3-4 is the cam, 3-5 is the motor I, 3-6 is the top sleeve, 3-7 is the adjusting bolt, 3-8 is the buffer spring, and 3-9 is the rubber top head; 4 is the plug-in mechanism, 4-1 is the door frame, 4-2 is the slide plate, 4-3 is the gear column, 4-4 is the support plate, 4-5 is the gear, 4-6 is the wrench, 4-7 is the electric plug, and 4-8 is the motor II; 5 is the switch box, 5-1 is the base plate, 5-2 is the single-throw switch, and 5-3 is the delay switch.

[0022] The following is a further description of the generator display instrument inspection tool of the present invention in conjunction with the accompanying drawings and specific implementation methods. DETAILED DESCRIPTION

[0023] By the attached Figure 3-10It can be seen that the utility model generator display instrument inspection tool, which uses analog equipment to output signals of various parameters of the generator during operation, is characterized in that the inspection tool includes a base plate 1, a push plate 2, a jog mechanism 3, a plug-in mechanism 4 and a switch box 5; the base plate is a U-shaped structure, and two concave steps are provided at the bottom of the U-shaped base plate, whose shapes and sizes match the appearances of the display circuit board and the control circuit board respectively, and a trapezoidal slide Ⅰ is provided on the inner walls of the two side plates; the push plate is a rectangular frame structure, and a trapezoidal slide Ⅰ is provided on the outer sides of both ends, and is inserted into the trapezoidal slide Ⅰ of the base plate; a jog mechanism and a plug-in mechanism are fixed on the left and right sides of the upper surface of the push plate respectively; the number of the jog mechanisms is the same as the jog switches on the display circuit board, They are respectively installed on the push plate just above the corresponding moment switch, and include a base 3-1, a slide bar 3-2, a return spring 3-3, a cam 3-4 and a motor I 3-5; the base is a rectangular structure, and a sliding hole with a step is vertically downwardly provided at the front end of the base; the slide bar is a round rod with a step, and the small end is inserted downward into the sliding hole of the base; the return spring is sleeved on the small head of the slide bar, one end of which contacts the front end surface of the large head of the slide bar, and the other end contacts the end surface of the step of the base sliding hole; the motor I is fixed on the upper surface of the base, and the axis of the rotating shaft is perpendicular to the axis of the slide bar; the cam is installed at the end of the rotating shaft of the motor I, and is directly above the slide bar; the installation position of the moment mechanism is so that the lower end surface of the slide bar contacts the upper end surface of the button of the corresponding moment switch , and the axes of the two are coaxial; the plug-in mechanism is installed on the push plate just above the control circuit board, and includes a door frame 4-1, a slide plate 4-2, a gear column 4-3, a support plate 4-4, a gear 4-5, a wrench 4-6 and an electric plug 4-7; the two legs of the door frame are fixed on the push plate frame, and a trapezoidal slide groove II is provided vertically downward on the inner side of the two legs, and a rectangular through hole is provided in the middle of the beam; the skateboard is long and narrow, with trapezoidal slideways II at both ends, and is inserted into the trapezoidal slide groove II of the door frame; the cross section of the gear column is rectangular, inserted into the rectangular through hole of the door frame, and the lower end is fixedly connected to the upper surface of the slide plate; the support plate is a long strip plate, fixed to the lower surface of the slide plate; the gear is provided on the door beside the gear column. The upper surface of the frame is engaged with the gear column; the wrench is fixed to the end of the gear shaft; the electric plug is fixed to the lower surface of the support plate, and the number is the same as the sockets on the control circuit board. The fixed position is based on the fact that each electric plug is just inserted into the corresponding socket after the slide moves downward; the switch box includes a base plate 5-1, a single-throw switch 5-2 and a delay switch 5-3; the base plate is a rectangular plate; the single-throw switches are installed on the base plate, and the number thereof is the same as the number of generator operating parameters output by the analog device; the delay switches are installed on the base plate, and the number thereof is the same as the number of motors of the inching mechanism; wherein the single-throw switch refers to a manual switch with only two switch positions of closing or opening, and is provided in the circuit connecting the analog device and the electric plug;The delay switch refers to a switch that switches on for a set time when the contacts are pressed once, and is set in the circuit connecting the driving power supply and motor I. The utility model generator display meter inspection fixture uses a base plate and a push plate to fix the generator display meter to be tested in a set position, and the plug-in and unplugging of the electric plug is achieved through a plug-in mechanism; since the electric plug and the socket are in relatively fixed positions, the plug-in and unplugging of the electric plug are relatively accurate. In addition, the utility model uses a momentary mechanism to trigger the momentary switch on the display circuit board, and sets the delay switch of the momentary mechanism together with the switch box. The operator only needs to operate on the switch box to complete the entire detection process. During the specific detection, the generator display meter to be tested is placed in the recessed step of the base plate (see attached; Figure 8 ), pull the push plate forward from the rear to the set position. At this time, the bottom of the push plate will press the display circuit board and the control circuit board into the corresponding concave steps respectively, thus fixing the two circuit boards; rotate the handle of the plug-in mechanism clockwise, the gear column drives the support plate to move downward, and the electric plug is plugged into the corresponding socket; operate each switch of the switch box as required to complete the entire detection process (see Appendix Figure 9 After the delay switch is activated, Motor I rotates one revolution, causing the cam to push the slide bar downward, thereby actuating the momentary switch button. This demonstrates that the present utility model's generator display instrument inspection tool allows for complete inspection within a single operating position, improving efficiency and effectively preventing misdetection or misoperation.

[0024] By the attached Figure 11 As can be seen, as one of the preferred technical solutions, the lower end of the slide rod is equipped with a buffer device, including a top sleeve 3-6, an adjustment bolt 3-7, a buffer spring 3-8, and a rubber plug 3-9. The top sleeve is a cylindrical sleeve with a step at the bottom, which fits over the lower end of the inching mechanism slide rod. The adjustment bolt passes through the step of the top sleeve and slides the top sleeve to secure it to the lower end of the slide rod. The buffer spring fits over the adjustment bolt, with one end contacting the inner end surface of the top sleeve step and the other end contacting the lower end surface of the slide rod. The rubber plug has a spherical surface and fits into the opening at the lower end of the top sleeve step. The adjustment bolt can adjust the relative position of the top sleeve and the lower end of the slide rod, and thus the distance between the rubber plug and the inching switch button on the display circuit board, to prevent the slide rod from actuating the inching switch button when the height of the inching switch button on the display circuit board changes. The purpose of providing the buffer spring and rubber plug is to prevent the lower end of the slide rod from impacting the inching switch button, preventing "hard-to-hard" contact that could damage the inching switch.

[0025] By the attached Figure 12As can be seen, as one of the preferred technical solutions, the plug-in mechanism's gear shaft is not secured with a wrench. Instead, a motor II 4-7 is fixedly mounted axially along the gear shaft, with the shaft of motor II connected to the gear shaft. Furthermore, a control switch for motor II is provided on the switch box. By controlling the forward and reverse rotation of motor II, the vertical movement of the tooth column is controlled, thereby enabling the plugging and unplugging of the electrical plug, further reducing the complexity of the operator's operation.

[0026] Obviously, the beneficial technical effect of the generator display instrument inspection tool of the present invention is that the inspection can be completed at the same operating position, thereby improving efficiency and effectively avoiding misdetection or misoperation.

Claims

1. A generator display instrument inspection tool, which uses analog equipment to output signals of various parameters during generator operation, characterized in that: The inspection tooling includes a base plate, a push plate, a jog mechanism, a plug-in mechanism and a switch box; the base plate is a U-shaped structure, and two concave steps are provided at the bottom of the U-shaped base plate, whose shapes and sizes match the appearances of the display circuit board and the control circuit board respectively, and a trapezoidal slide groove I is provided on the inner walls of the two side plates; the push plate is a rectangular frame structure, and a trapezoidal slide groove I is provided on the outer sides of both ends, and is inserted into the trapezoidal slide groove I of the base plate; the jog mechanism and the plug-in mechanism are fixed on the left and right sides of the upper surface of the push plate respectively; the number of the jog mechanisms is the same as the jog switches on the display circuit board , respectively installed on the push plate just above the corresponding inching switch, including a base, a slide rod, a return spring, a cam and a motor I; the base is a rectangular parallelepiped structure, and a sliding hole with a step is vertically downwardly provided at the front end of the base; the slide rod is a round rod with a step, and the small end is inserted downward into the sliding hole of the base; the return spring is sleeved on the small head of the slide rod, one end of which contacts the front end surface of the large head of the slide rod, and the other end contacts the end surface of the step of the base sliding hole; the motor I is fixed on the upper surface of the base, and the axis of the rotating shaft is perpendicular to the axis of the slide rod; the cam is installed at the end of the rotating shaft of the motor I The head is directly opposite to the top of the slide bar; the installation position of the inching mechanism is such that the lower end surface of the slide bar contacts the upper end surface of the button of the corresponding inching switch, and the axes of the two are coaxial; the plug-in mechanism is installed on the push plate directly above the control circuit board, and includes a door-shaped frame, a slide plate, a gear column, a support plate, a gear, a wrench and an electric plug; the two legs of the door-shaped frame are fixed to the push plate frame, and a trapezoidal slide groove II is provided vertically downward on the inner side of the two legs, and a rectangular through hole is provided in the middle of the beam; the slide plate is long and narrow, with a trapezoidal slideway II provided at both ends, and is inserted into the trapezoidal The cross section of the tooth column is rectangular and is inserted into the rectangular through hole of the door frame, and the lower end is fixedly connected to the upper surface of the slide; the support plate is a long strip plate and is fixed to the lower surface of the slide; the gear is arranged on the upper surface of the door frame beside the tooth column and meshes with the tooth column; the wrench is fixed to the end of the gear shaft; the electric plugs are fixed to the lower surface of the support plate, and the number is the same as the sockets on the control circuit board. The fixed position is based on the fact that each electric plug is just inserted into the corresponding socket after the slide moves downward; the switch box includes a base plate, a single-throw switch and a delay switch; The substrate is a rectangular plate; the single-throw switches are installed on the substrate, and their number is the same as the number of generator operating parameters output by the analog device; the delay switches are installed on the substrate, and their number is the same as the number of motors of the inching mechanism; wherein, the single-throw switch refers to a manual switch with only two switch positions of closed or open, and is set in the circuit connecting the analog device and the electrical plug; the delay switch refers to a switch whose contact is connected for a set time when pressed once, and is set in the circuit connecting the drive power supply and motor I.

2. The generator display instrument inspection tool according to claim 1 is characterized in that: The lower end of the slide rod is provided with a buffer device, including a top sleeve, an adjusting bolt, a buffer spring and a rubber top head; the top sleeve is a cylinder with a step at the bottom, which is sleeved on the lower end of the slide rod of the inching mechanism; the adjusting bolt passes through the step of the top sleeve to slide and fix the top sleeve to the lower end of the slide rod; the buffer spring is sleeved on the adjusting bolt, with one end in contact with the inner end face of the top sleeve step and the other end in contact with the lower end face of the slide rod; the surface of the rubber top head is spherical and is embedded in the opening at the lower end of the top sleeve step.

3. The generator display instrument inspection tool according to claim 1 or 2, characterized in that: There is no wrench fixed on the gear shaft of the plug-in mechanism, and a motor II is fixedly installed in the axial direction of the gear shaft, and the shaft of the motor II is connected to the gear shaft; and a control switch of the motor II is provided on the switch box.

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