An insulation detection system for electrical cabinet

Abstract

The present application provides an insulation detection system for an electrical cabinet, comprising: a transmission unit, a transmission cabinet plate; two support plates located on both sides of the transmission unit, a detection roller is arranged between the two support plates; sliding holes are arranged on the two support plates, and both ends of the roller shaft of the detection roller pass through the sliding holes and can slide in the two sliding holes; the support plate is provided with a rack group, which is located below the sliding hole and extends equidistantly along the lower edge of the sliding hole, the rack group includes an inner rack and an outer rack, the two racks are staggered, there is a gear on the roller shaft, the gear is meshed with the inner rack or the outer rack, and can switch positions between the two racks at both ends of the gear group; it also includes a driving mechanism, which can drive the roller shaft to slide in the sliding hole and axially move horizontally; the array on the detection roller has a detection contact device, which can contact the cabinet plate. This system pushes the detection roller to roll over the cabinet plate in a rolling manner, and the detection speed is faster, and the reciprocating detection is performed twice, and the positions of the two detection points are different, making the detection more comprehensive and more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of electrical cabinet detection, in particular to an insulation detection system for an electrical cabinet. Background Art

[0002] An electrical cabinet is a cabinet used to protect electrical components. It is usually made of cold-rolled steel or hot-rolled steel. The electrical components inside are usually used to distribute electrical energy and control and monitor circuits. Since electrical cabinets usually connect many circuits and the voltages carried by the electrical components inside are relatively high, the cabinet panels of the electrical cabinets usually need to be insulated by painting to ensure the safety of people outside the cabinets. In addition, the painted cabinet panels need to be tested for insulation to remove unqualified panels. Existing detection devices randomly select several points to detect insulation, and cannot fully detect the insulation of the cabinet panels, which poses a certain risk of electricity use.

[0003] The existing patent CN115184754B provides an insulation detection device for a distribution cabinet, in which the cabinet plate is driven to move forward intermittently by a propulsion part through a bottom plate, and the detection part is driven to rotate intermittently by a driving part, so that multiple rotating mechanisms on the detection part contact the cabinet plate in turn, with the rotating mechanism serving as a positive conductive end and the bottom plate serving as a negative conductive end, so as to detect the insulation of the contact points between the cabinet plate and the multiple rotating mechanisms.

[0004] However, since the base plate and the rotating mechanism both move intermittently, and in order to conduct comprehensive inspections, the distance of the intermittent movement will be relatively small, which results in a longer inspection time for each cabinet panel, which in turn leads to low operating efficiency of the inspection line, which is not conducive to enterprise production.

[0005] In addition, in order to be able to conduct a comprehensive inspection of the cabinet panel at one time, the distance between adjacent contact components on the rotating mechanism needs to be set closer, otherwise detection errors will occur. This causes the contact components on the rotating mechanism to be very dense, which not only makes the equipment more complicated and is not conducive to the installation and maintenance of the equipment, but also has high manufacturing costs. Summary of the invention

[0006] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides an insulation detection system for an electrical cabinet.

[0007] The technical solution of the present invention is as follows:

[0008] An insulation detection system for an electrical cabinet comprises a transmission unit, a detection unit, a sensor unit, a rotary encoder and a control unit;

[0009] The transmission unit is used to transmit the cabinet panels of the electrical cabinet;

[0010] The detection unit includes two support plates located on both sides of the transmission unit, a detection roller is arranged between the two support plates, and the detection roller is located above the transmission unit;

[0011] The two support plates are provided with sliding holes, the middle of the sliding holes is horizontal, and the length is greater than or equal to the length of the cabinet plate, and the two ends are inclined upward, and the two ends of the roller shaft of the detection roller pass through the sliding holes and can slide in the two sliding holes;

[0012] A rack set is provided on the side of at least one support plate. The rack set is located below the slide hole and extends equidistantly along the lower edge of the slide hole. Both ends are inclined upward. The rack set includes an inner rack connected to the support plate and an outer rack connected to the outer side of the inner rack. The teeth of the two racks are of the same shape and are staggered. A gear is fixed on the roller shaft, and the gear is meshed with the inner rack or the outer rack.

[0013] A plurality of sliding grooves with the same inclination direction are provided at both ends of the rack group, and each sliding groove is connected to the tooth grooves of the two racks, so that the gear can slide from the inner rack to the outer rack, or from the outer rack to the inner rack;

[0014] It also includes a driving mechanism capable of driving the roller to slide in the sliding hole and to move axially;

[0015] There are several detection contact devices arrayed on the detection roller surface, which can contact the cabinet board;

[0016] The sensing unit is arranged on the inner side of the support plate and below the horizontal section of the sliding hole;

[0017] A rotary encoder connected to the detection roller;

[0018] The control unit is electrically connected with the transmission unit, the driving mechanism, the sensor unit and the rotary encoder.

[0019] Preferably, the rack assembly is located outside the support plate.

[0020] In order to ensure that the gear can always mesh with the rack, the length of the rack set is greater than the length of the sliding hole.

[0021] In order to make the detection roller rise smoothly and not generate too much resistance to the movement of the detection roller, both ends of the rack set and the sliding hole are inclined upward in an arc shape.

[0022] In order to enable the gear to slide smoothly between the two racks without getting stuck and not affecting the normal meshing and rolling of the gear on the rack, the sliding groove connects the two adjacent tooth grooves between the inner rack and the outer rack.

[0023] Preferably, the rack group includes two, which are respectively arranged on the outer sides of the two support plates. The two have the same shape and are in a horizontal translation position relationship. Two identical gears are provided on the roller shaft, one of which is meshed with the inner rack of one rack group, and the other gear is meshed with the outer rack of the other rack group.

[0024] In the present application, the driving mechanism includes two driving modules, and the driving module includes a driving rod and a displacement mechanism;

[0025] The displacement mechanism is sleeved on the driving rod and is rotationally connected to the roller shaft;

[0026] The driving rod is provided with a spiral slide groove, and stop parts are provided at both ends of the spiral slide groove. The two stop parts are correspondingly located at the outer sides of the lower parts of the two ends of the slide hole, and a sliding block matching with the spiral slide groove is provided on the displacement mechanism;

[0027] The driving rod pushes the slider through the spiral slide groove, so that the displacement mechanism drives the roller shaft to move along the axial direction of the driving rod;

[0028] When the roller shaft is located at the end of the sliding hole, the stop portion contacts the sliding block, and the driving rod pushes the displacement mechanism through the stop portion to drive the roller shaft to move along the axial direction of the roller shaft.

[0029] Furthermore, the shifting mechanism includes a shifting rod and a shifting fork;

[0030] The shift fork is rotatably connected to the roller shaft and extends two fork arms downward. A slide rod is connected between the lower ends of the two fork arms, and the slide rod is parallel to the driving rod.

[0031] The shift rod is sleeved on the driving rod, and a shifting portion is extended obliquely upward along the radial direction of the driving rod. The shifting portion is located between the two fork arms, and the two side surfaces are respectively in contact with the two fork arms. A straight slot hole is provided on the shifting portion for the sliding rod to slide and rotate. The straight slot hole extends radially along the driving rod, and the opening direction is parallel to the driving rod. The slider is arranged on the surface where the shift rod abuts the driving rod.

[0032] Preferably, the two driving modules are located outside the two supporting plates and are in a horizontal translation position relationship.

[0033] In the present application, when the driving rod pushes the detection roller to move along the transmission direction of the vertical transmission unit through the shift rod and the shift fork, the sliding groove can make the teeth on the gear that mesh with the rack rotate toward the horizontal section of the rack group. In this way, when the driving rod rotates in the opposite direction and the driving gear moves along the rack to the other end, the force applied by the driving rod to the shift rod is also in the direction of the horizontal section of the rack group, and therefore the gear will not move back to the other rack.

[0034] The present invention provides an insulation detection system for an electrical cabinet, which drives the detection roller to translate while the detection roller rotates under the interaction of the gear and the rack, thereby causing the detection roller to roll over the cabinet panel surface, thereby making the cabinet panel detection faster.

[0035] In addition, the insulation detection system of the present application also enables the detection roller to move back after rolling over the cabinet board and roll over the cabinet board again. Before moving back, the detection contact device on the detection roller is offset by switching the gears on the inner and outer strips, so that during the moving back of the detection roller, the contact point between the detection contact device and the cabinet board is different from the previous contact point position, so that the insulation detection system can detect more positions of the cabinet board, which not only achieves the purpose of comprehensive detection of the cabinet board, but also reduces the number of detection contact devices on the detection roller, reduces the difficulty of installation and maintenance, and reduces the cost of production.

[0036] In addition, since the detection roller always rotates by the gear and rack during the detection process, and the rotation ratio is fixed, the points where each detection contact device on the detection roller contacts the cabinet board are fixed, and when the detection roller returns to the initial position, the detection contact device will also return to the initial position and initial angle. Therefore, when a detection contact device fails, the maintenance personnel can quickly locate and find the detection contact device, replace or repair it, which facilitates the later maintenance of the insulation detection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In the attached picture:

[0038] Figure 1 It is a three-dimensional schematic diagram of the insulation detection system;

[0039] Figure 2 It is a side schematic diagram of the insulation detection system;

[0040] Figure 3 It is a front side schematic diagram of the insulation detection system;

[0041] Figure 4 is a schematic diagram of a rack assembly;

[0042] Figure 5 Schematic diagram of the driving rod and the lever.

[0043] The components represented by the reference numerals in the figure are:

[0044] 1. Conveying unit; 21. Support plate; 211. Slide hole; 22. Detection roller; 221. Detection contact device; 222. Roller shaft; 223. Gear; 23. Rack group; 231. Inner rack; 232. Outer rack; 233. Slide groove; 31. Driving rod; 311. Spiral slide groove; 312. Stop part; 32. Push rod; 321. Sliding block; 322. Pushing part; 323. Straight slot hole; 33. Push fork; 331. Fork arm; 332. Slide rod 4. Cabinet plate. DETAILED DESCRIPTION

[0045] like Figures 1 to 4As shown, an embodiment of the present invention provides an insulation detection system for an electrical cabinet, comprising a transmission unit 1, a detection unit, a sensor unit, a rotary encoder and a control unit, wherein the sensor unit, the rotary encoder and the control unit are not shown in the drawings.

[0046] The conveying unit 1 is used to transport the cabinet panel 4 of the electrical cabinet. The cabinet panel 4 is fixed when being transported on the conveying unit 1 and moves with the conveying unit 1. The conveying unit 1 is controlled to start and stop by the control unit.

[0047] The detection unit includes two support plates 21 located on both sides of the transmission unit 1. The two support plates 21 are parallel to each other and symmetrically arranged, and the top is higher than the transmission unit 1. The two support plates 21 are symmetrically provided with sliding holes 211. The middle of the sliding holes 211 is a horizontal section, and the length is greater than or equal to the length of the cabinet plate 4. The two ends are inclined upward to form an inclined section. When the cabinet plate 4 is detected, it is below the horizontal section of the sliding hole 211.

[0048] A detection roller 22 is provided between the two support plates 21, and the detection roller 22 is located above the conveying unit 1. A plurality of detection contact devices 221 are arrayed on the cylindrical surface of the detection roller 22, and both ends of the roller shaft 222 of the detection roller 22 pass through the slide hole 211 and can slide in the two slide holes 211. When the roller shaft 222 moves in the horizontal section of the slide hole 211, the detection contact device 221 can contact the surface of the cabinet board 4. When the roller shaft 222 moves to the inclined section of the slide hole 211, it is tilted and raised under the action of the inclined section, so that the cabinet board 4 will not have friction contact with the detection contact device 221 when passing under the detection roller 22, thereby improving the service life of the detection contact device 221.

[0049] A rack set 23 is provided on the side of at least one support plate 21. The rack set 23 is located below the slide hole 211 and extends equidistantly along the lower edge of the slide hole 211. Both ends are inclined upward, and it also has a horizontal section in the middle and inclined sections at both ends. The rack set 23 includes an inner rack 231 connected to the support plate 21 and an outer rack 232 connected to the outer side of the inner rack 231. The teeth of the two racks are of the same shape and are staggered. A gear 223 is fixed on the roller shaft 222. The gear 223 is meshed with the inner rack 231 or the outer rack 232. When the detection roller 22 slides in the slide hole 211, the gear 223 rolls along the rack, so that the detection roller 22 moves along the conveying unit 1 in a rolling manner, and then the detection contact device 221 on the detection roller 22 sequentially contacts the cabinet board 4 surface, and the contact points on the cabinet board 4 surface are distributed in an array.

[0050] In this embodiment, a plurality of sliding grooves 233 with the same inclination direction are provided at both ends of the rack group 23, and each sliding groove 233 connects the tooth grooves of the two racks, so that the gear 223 can slide from the inner rack 231 to the outer rack 232 through the sliding groove 233, or slide from the outer rack 232 to the inner rack 231, thereby causing the detection roller 22 to move horizontally along the axial direction of the roller shaft 222 (i.e., the transmission direction of the vertical transmission unit 1). At the same time, since the teeth between the two racks are staggered, the inclined sliding groove 233 connects the two staggered tooth grooves between the two racks, so when the gear 223 slides to the other rack, it will rotate at a certain angle, thereby causing the detection roller 22 to rotate at a certain angle while moving horizontally. At this time, if the detection roller 22 is moved to the other end of the sliding hole 211, the contact point between the detection contact device 221 and the cabinet board 4 will be different from the previous contact point position, so that the insulation detection system can detect more positions of the cabinet board 4, and achieve the purpose of comprehensive detection of the cabinet board 4. In addition, the present embodiment detects by means of the reciprocating rolling of the detection roller 22, which can achieve the purpose of comprehensive detection while reducing the number of detection contact devices 221 on the detection roller 22, thereby reducing the difficulty of installation and maintenance, as well as the cost of production.

[0051] In this embodiment, by adjusting the tooth shape, tooth pitch, rack width, number of detection contact devices 221, array distance and array angle of the gear 223, the detection points of the detection contact device 221 on the cabinet panel 4 can be evenly distributed, making the detection more reasonable and the detection results more accurate.

[0052] In this embodiment, the rack set 23 is located outside the support plate 21 , and the length of the rack set 23 is greater than the length of the sliding hole 211 , so that the gear 223 can always mesh with the rack.

[0053] The inclined sections at both ends of the rack set 23 and the sliding hole 211 are all arc-shaped and inclined upward, so that the detection roller 22 can be raised smoothly without generating too much resistance to the movement of the detection roller 22. The setting of the inclined section not only avoids the friction between the detection roller 22 and the cabinet board 4 when the cabinet board 4 passes under the detection roller 22, but also avoids the friction between the detection roller 22 and the cabinet board 4 when the detection roller 22 moves axially along the roller shaft 222.

[0054] In this embodiment, the teeth between the inner rack 231 and the outer rack 232 are offset by half a tooth pitch, the teeth of the inner rack 231 correspond to the tooth grooves of the outer rack 232, and the sliding groove 233 connects the two adjacent tooth grooves between the inner rack 231 and the outer rack 232, so that the gear 223 can slide smoothly between the two racks without getting stuck, and does not affect the normal meshing and rolling of the gear 223 on the rack.

[0055] In addition, the rack set 23 may include two, which are respectively arranged on the outer sides of the two support plates 21, and the two have the same shape and are in a horizontal translation position relationship, that is, the inner rack 231 and the outer rack 232 of one rack set 23 correspond to the outer rack 232 and the inner rack 231 of the other rack set 23. Two identical gears 223 are arranged on the roller shaft 222, one of which is meshed with the inner rack 231 of one rack set 23, and the other gear 223 is meshed with the outer rack 232 of the other rack set 23, so that the two gears 223 can slide synchronously between their respective inner racks 231 and outer racks 232, and ensure that the axis of the detection roller 22 is always perpendicular to the transmission direction of the transmission unit 1.

[0056] In this embodiment, at least four inclined sliding grooves 233 are respectively disposed at both ends of the rack assembly 23 and are located below both ends of the sliding hole 211 to prevent the gear 223 from interfering with the teeth on the side racks thereof and affecting the sliding of the gear 223 .

[0057] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the detection unit further includes a driving mechanism capable of driving the roller 222 to slide in the sliding hole 211 and to move axially.

[0058] Specifically, the driving mechanism includes two driving modules, and the two driving modules are located outside the two supporting plates 21 and are in a horizontal translation position relationship.

[0059] The driving module includes a driving rod 31 and a displacement mechanism.

[0060] The driving rod 31 is parallel to the transmission direction of the transmission unit 1, and the driving rod 31 is driven to rotate by a motor (not shown in the figure). The shifting mechanism is sleeved on the driving rod 31 and is rotatably connected to the roller shaft 222. The driving rod 31 is provided with a spiral slide 311, and the two ends of the spiral slide 311 are provided with stop portions 312. The two stop portions 312 are correspondingly located at the lower outer sides of the two ends of the slide hole 211, and the shifting mechanism is provided with a slider 321 that cooperates with the spiral slide 311.

[0061] When the motor drives the driving rod 31 to rotate, the sliding block 321 is pushed through the spiral sliding groove 311 , so that the displacement mechanism drives the roller shaft 222 to move axially along the driving rod 31 .

[0062] When the roller shaft 222 is located at the end of the sliding hole 211 , the stopper 312 contacts the slider 321 , and the driving rod 31 continues to rotate in the same direction, and the stopper 312 pushes the displacement mechanism to drive the roller shaft 222 to move axially along the roller shaft 222 .

[0063] More specifically, the shifting mechanism includes a shifting rod 32 and a shifting fork 33. The shifting fork 33 is rotatably connected to the roller shaft 222 and extends two fork arms 331 downwardly. A sliding rod 332 is connected between the lower ends of the two fork arms 331. The sliding rod 332 is parallel to the driving rod 31. The shifting rod 32 is sleeved on the driving rod 31 and extends a shifting portion 322 obliquely upwardly along the radial direction of the driving rod 31. The shifting portion 322 is located between the two fork arms 331 and is provided with a straight slot hole 323 for the sliding rod 332 to slide and rotate. The straight slot hole 323 extends along the radial direction of the driving rod 31, and the opening direction is parallel to the driving rod 31.

[0064] The slider 321 is arranged on the surface where the lever 32 abuts against the driving rod 31, that is, on the inner side of the circular hole where the lever 32 and the driving rod 31 match. The width of the toggle portion 322 is equal to the spacing between the two fork arms 331, that is, the two side surfaces of the toggle portion 322 are respectively in contact with the two fork arms 331. The slide bar 332 passes through the straight slot hole 323 and can slide in the straight slot hole 323 and rotate relative to the lever 32. The opening width of the straight slot hole 323 is equal to the diameter of the slide bar 332.

[0065] When the motor drives the driving rod 31 to rotate, the slider 321 is pushed through the spiral slide groove 311, so that the lever 32 is displaced along the axial direction of the driving rod 31, and the shifting portion 322 of the lever 32 pushes the fork arm 331, thereby pushing the shift fork 33 to drive the roller shaft 222 to displace along the axial direction of the driving rod 31. Since the width of the shifting portion 322 is equal to the spacing between the two fork arms 331, when the lever 32 pushes the shift fork 33, the shift fork 33 will not rotate relative to the lever 32, thereby ensuring the vertical correspondence between the lever 32, the shift fork 33 and the roller shaft 222.

[0066] When the roller shaft 222 slides to one end of the sliding hole 211, the slider 321 of the shift rod 32 just contacts with the stop portion 312 at the end of the spiral sliding groove 311. At this time, the driving rod 31 continues to rotate, and the stop portion 312 will push the slider 321, driving the shift rod 32 to rotate around the axis of the driving rod 31, and the shifting portion 322 pushes the sliding rod 332. Since the shift fork 33 and the roller shaft 222 are only rotationally connected, the positions of the shift fork 33 and the roller shaft 222 in the axial direction of the roller shaft 222 are relatively fixed. When the sliding rod 332 is pushed by the shifting portion 322, the shift fork 33 will drive the roller shaft 222 to move laterally along the axial direction of the roller shaft 222.

[0067] In this embodiment, when the toggle part 322 moves the gear 223 from one rack to another, the rotation angle of the toggle part 322 is less than 180 degrees, and preferably, the starting position and the end position of the toggle part 322 during rotation are symmetrical relative to the axial vertical center plane of the driving rod 31.

[0068] When the detection roller 22 completes the axial transverse movement, the motor drives the driving rod 31 to reverse, and pushes the lever 32 to slide in the opposite direction along the driving rod 31 again, and then drives the detection roller 22 through the shift fork 33 to achieve its reverse movement along the transmission direction of the transmission unit 1.

[0069] In addition, the inclination direction of the sliding groove 233 of the present embodiment enables, when the driving rod 31 pushes the detection roller 22 to move along the transmission direction of the vertical transmission unit 1 through the lever 32 and the fork 33, the teeth on the gear 223 meshing with the rack rotate in the direction of the horizontal section of the rack set 23, or, in other words, when the driving rod 31 drives the gear 223 to move from one rack to another rack, the teeth on the gear 223 in meshing state rotate in the direction of the horizontal section of the rack set 23. In this way, when the driving rod 31 rotates in the opposite direction and the driving gear 223 moves along the rack to the other end, since the force applied by the driving rod 31 to the lever 32 is also in the direction of the horizontal section of the rack set 23, the gear 223 can move smoothly on the rack without moving back to the other rack.

[0070] The sensing unit can be optionally an infrared sensor, which is arranged on the inner side of the support plate 21 and located below the horizontal section of the sliding hole 211. When the front edge of the cabinet panel 4 moves to the position of the sensing unit, the sensing unit sends a signal to the control unit. The control unit controls the transmission unit 1 to stop moving and controls the motor to start to detect the cabinet panel 4.

[0071] The rotary encoder is connected to the detection roller 22 to obtain the rotation angle and number of turns of the detection roller 22. According to the rotary encoder, the control unit can accurately control the start and stop time nodes of the motor, such as the time nodes of switching the forward rotation and flipping of the driving rod 31. In addition, through the data obtained by the rotary encoder and the distribution of the detection contact device 221 on the detection roller 22, the position of the contact point of each detection contact device 221 on the cabinet board 4 can be determined, and then when the detection contact device 221 fails, it can accurately and quickly locate which detection contact device 221 is damaged.

[0072] The control unit is connected to the transmission unit 1, the driving mechanism, the sensing unit and the rotary encoder by telecommunication. The control unit in the present application may have an information processing function, and the information obtained by the detection contact device 221 and the rotary encoder may be processed by the control unit, that is, the detection contact device 221 may also be connected to the control unit by telecommunication. In addition, a processing unit may be separately provided, which is connected to the control unit, the detection contact device 221 and the rotary encoder by telecommunication, and is used to process the information of the detection contact device 221 and the rotary encoder.

[0073] In this embodiment, the detection contact device 221 may include a connecting rod radially connected to the cylindrical surface of the detection roller 22, the appearance of the connecting rod is covered with a contact head, and a compression spring is provided between the contact head and the cylindrical surface of the detection roller 22. When the detection contact device 221 contacts the cabinet board 4, the contact head can have a certain free extension distance, thereby being able to adapt to the uneven surface of the cabinet board.

[0074] Usage process:

[0075] In the initial state, the detection roller 22 is located at the front end of the slide hole 211, the transmission unit 1 serves as the negative conductive end, and the detection contact device 221 serves as the positive conductive end;

[0076] The conveying unit 1 moves the cabinet board 4 to be detected. When the front edge of the cabinet board 4 moves to the position of the sensing unit, the sensing unit transmits a signal to the control unit, and the control unit controls the conveying unit 1 to stop moving and starts the motor at the same time;

[0077] The motor drives the driving rod 31 to rotate forward, and the side wall of the spiral slide groove 311 pushes the slider 321, so that the lever 32 moves backward, thereby driving the detection roller 22 to move backward. The detection roller 22 first moves downward along the inclined section of the slide hole 211 to the horizontal section of the slide hole 211. During the backward movement of the detection roller 22 along the horizontal section of the slide hole 211, it rolls over the cabinet board 4, and then rises along the inclined section at the rear end of the slide hole 211, so that the detection contact device 221 is out of contact with the cabinet board 4, avoiding friction with the cabinet board 4 during the subsequent lateral movement;

[0078] When the roller shaft 222 moves to the rear end of the sliding hole 211, the stop portion 312 at the rear end of the spiral sliding groove 311 just contacts the sliding block 321, and the motor drives the driving rod 31 to continue to rotate forward by a certain angle, so that the stop portion 312 pushes the sliding block 321, driving the lever 32 to rotate, and the lever 32 drives the detection roller 22 to move horizontally along the axial direction of the roller shaft 222 through the shift fork 33, driving the detection contact device 221 to move horizontally, and the horizontal movement distance is preferably half of the spacing between two axially adjacent detection contact devices 221. At the same time, the gear 223 slides to the rack on one side thereof, and under the action of the inclined sliding groove 233, the gear 223 rotates by a certain angle, and the angle is preferably half of the corresponding central angle of two circumferentially adjacent detection contact devices 221.

[0079] The motor drives the driving rod 31 to rotate in the opposite direction, and the side wall of the spiral slide groove 311 pushes the slider 321, so that the lever 32 moves forward, thereby driving the detection roller 22 to move forward, and the detection roller 22 will roll over the cabinet plate 4 again. This time, the contact point between the detection contact device 221 and the cabinet plate 4 is different from the previous contact point.

[0080] When the roller shaft 222 moves to the front end of the sliding hole 211, the stop portion 312 at the front end of the spiral sliding groove 311 just contacts the slider 321, and the motor drives the driving rod 31 to continue to rotate in the opposite direction, pushing the detection roller 22 back to the initial position along the axial direction of the roller shaft 222, and at the same time, the gear 223 slides back to the initial rack and rotates the gear 223 a certain angle. When the gear 223 is at both ends of the gear 223 group, the rotation direction caused by sliding along the sliding groove 233 is opposite, so that the detection contact device 221 can be restored to the initial position.

[0081] The insulation detection system of the present application directly pushes the detection roller 22 to roll over the cabinet plate 4 to complete the detection, and the detection speed is faster.

[0082] In addition, by switching the gear 223 on the double rack and pushing back the detection roller 22, the detection roller 22 rolls over the cabinet board 4 twice, and the contact points with the cabinet board 4 are at different positions twice, so that the insulation detection system can detect more positions of the cabinet board 4, making the detection more comprehensive and the detection result more accurate. In addition, the number of detection contact devices 221 on the detection roller 22 can be reduced to reduce costs.

[0083] In addition, the rolling of the detection roller 22 is produced by the cooperation of the gear 223 and the rack, so that when the detection roller 22 returns to the initial position, each detection can be in the initial state, that is, its position, angle, and direction are the same as at the initial time, so that during each detection, the points at which each detection contact device 221 contacts the surface of the cabinet panel 4 are fixed points. Therefore, when a detection contact device 221 fails, the maintenance personnel can quickly locate and find the detection contact device 221 for replacement or repair, which facilitates the later maintenance of the insulation detection system.

[0084] The fault detection of the detection contact device 221 can be carried out by randomly placing an unpainted cabinet board 4 on the conveying unit 1. If a detection contact device 221 does not generate a signal when detecting the cabinet board 4, the detection contact device 221 fails.

Claims

1. An insulation detection system for an electrical cabinet, characterized in that: include: A transmission unit (1) for transmitting a cabinet panel (4) of an electrical cabinet; A detection unit, comprising two support plates (21) located on both sides of the transmission unit (1), a detection roller (22) being provided between the two support plates (21), and the detection roller (22) being located above the transmission unit (1); The two support plates (21) are provided with sliding holes (211), the middle of the sliding holes (211) is horizontal, and the length is greater than or equal to the length of the cabinet plate (4), and the two ends are inclined upward, and the two ends of the roller shaft (222) of the detection roller (22) pass through the sliding holes (211) and can slide in the two sliding holes (211); A rack group (23) is provided on the side of at least one support plate (21), the rack group (23) is located below the slide hole (211), and extends equidistantly along the lower edge of the slide hole (211), with both ends inclined upward, the rack group (23) comprises an inner rack (231) connected to the support plate (21) and an outer rack (232) connected to the outer side of the inner rack (231), the teeth of the two racks are of the same shape, and the teeth between the inner rack (231) and the outer rack (232) are offset by half a tooth pitch, a gear (223) is fixed on the roller shaft (222), and the gear (223) is meshed with the inner rack (231) or the outer rack (232); A plurality of sliding grooves (233) with the same inclination direction are provided at both ends of the rack group (23), and each sliding groove (233) is connected to the tooth grooves of the two racks, so that the gear (223) can slide from the inner rack (231) to the outer rack (232), or from the outer rack (232) to the inner rack (231); It also includes a driving mechanism capable of driving the roller shaft (222) to slide in the sliding hole (211) and to move axially and laterally; A plurality of detection contact devices (221) are arranged in an array on the cylindrical surface of the detection roller (22) and are capable of contacting the cabinet plate (4); A sensor unit is arranged on the inner side of the support plate (21) and is located below the horizontal section of the sliding hole (211); A rotary encoder connected to the detection roller (22); The control unit is electrically connected to the transmission unit (1), the drive mechanism, the sensor unit and the rotary encoder.

2. An insulation detection system for an electrical cabinet as claimed in claim 1, characterized in that: The rack set (23) is located outside the support plate (21).

3. An insulation detection system for an electrical cabinet as claimed in claim 2, characterized in that: The length of the rack set (23) is greater than the length of the sliding hole (211).

4. An insulation detection system for an electrical cabinet as claimed in claim 3, characterized in that: Both ends of the rack assembly (23) and the sliding hole (211) are arc-shaped and inclined upward.

5. An insulation detection system for an electrical cabinet as claimed in claim 4, characterized in that: The sliding groove (233) communicates with two adjacent tooth grooves between the inner tooth gear (231) and the outer tooth gear (232).

6. The insulation detection system for an electrical cabinet according to claim 1, characterized in that: The rack groups (23) include two, which are respectively arranged on the outside of the two support plates (21), have the same shape, and are in a horizontal translation position relationship. The roller shaft (222) is provided with two identical gears (223), one of which is meshed with an inner gear (231) of one rack group (23), and the other gear (223) is meshed with an outer gear (232) of the other rack group (23).

7. An insulation detection system for an electrical cabinet as claimed in claim 1, characterized in that: The driving mechanism comprises two driving modules, and the driving module comprises a driving rod (31) and a displacement mechanism; The displacement mechanism is sleeved on the driving rod (31) and is rotationally connected to the roller shaft (222); The driving rod (31) is provided with a spiral slide groove (311), and stop portions (312) are provided at both ends of the spiral slide groove (311). The two stop portions (312) are correspondingly located at the outer sides of the lower parts of both ends of the slide hole (211), and the displacement mechanism is provided with a sliding block (321) that cooperates with the spiral slide groove (311); The driving rod (31) pushes the sliding block (321) through the spiral sliding groove (311), so that the displacement mechanism drives the roller shaft (222) to move axially along the driving rod (31); When the roller shaft (222) is located at the end of the sliding hole (211), the stop portion (312) contacts the sliding block (321), and the driving rod (31) pushes the displacement mechanism through the stop portion (312) to drive the roller shaft (222) to move axially along the roller shaft (222).

8. An insulation detection system for an electrical cabinet as claimed in claim 7, characterized in that: The shifting mechanism comprises a shifting rod (32) and a shifting fork (33); The shift fork (33) is rotatably connected to the roller shaft (222) and extends two fork arms (331) downward. A slide bar (332) is connected between the lower ends of the two fork arms (331), and the slide bar (332) is parallel to the driving rod (31); The shifting rod (32) is sleeved on the driving rod (31), and a shifting portion (322) is extended obliquely upward along the radial direction of the driving rod (31). The shifting portion (322) is located between the two fork arms (331), and the two side surfaces are respectively in contact with the two fork arms (331). A straight slot hole (323) for the sliding rod (332) to slide and rotate is opened on the shifting portion (322). The straight slot hole (323) extends along the radial direction of the driving rod (31), and the opening direction is parallel to the driving rod (31). The sliding block (321) is arranged on the surface where the shifting rod (32) and the driving rod (31) abut.

9. An insulation detection system for an electrical cabinet as claimed in claim 8, characterized in that: The two driving modules are located outside the two supporting plates (21) and are in a horizontal translation position relationship.

10. An insulation detection system for an electrical cabinet as claimed in claim 9, characterized in that: When the driving rod (31) pushes the detection roller (22) to move along the transmission direction of the vertical transmission unit (1) through the shifting rod (32) and the shifting fork (33), the sliding groove (233) can enable the teeth on the gear (223) that mesh with the rack to rotate in the horizontal section direction of the rack assembly (23).

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