A device for testing the production strength of insulating paper

Abstract

The present invention relates to the field of insulating paper performance testing, specifically to an insulating paper production strength performance testing device, including a support platform and two support boxes fixedly connected to the top of the support platform and symmetrically distributed about the support platform, a detection mechanism is installed on the opposite side of the two support boxes, a sensor assembly is installed on the end of the detection mechanism away from the support box, a clamping mechanism is installed on the side of the sensor assembly away from the detection mechanism, a driving motor is installed in the middle of the support platform, and a driving mechanism for driving the detection mechanism is installed inside the support box. The present invention uses a single driving source drive motor to drive the driving mechanism, and then a switching mechanism controls the driving mechanism to selectively drive the tensile component and the rotating component. The tensile strength test and the bending strength test are driven by the same driving source, which reduces the production cost and coordination difficulty of the detection device.

Description

Technical Field

[0001] The invention relates to the technical field of insulation paper performance detection, and in particular to an insulation paper production strength performance detection device. Background Art

[0002] Insulation paper is a general term for electrical insulation paper. It is used as insulation material for various electrical equipment such as cables and coils, and has good insulation performance and mechanical strength. Common insulation papers include high-temperature insulation paper, fireproof insulation paper, high-voltage insulation paper for motor vehicles, busbar insulation paper, motor insulation paper, transformer insulation paper, motor insulation paper, composite insulation paper, etc. The insulation paper produced should have the required mechanical strength, so the strength of the insulation paper needs to be tested.

[0003] Existing insulation paper strength tests generally include tensile strength tests and bending strength tests. The tensile strength test is to use a clamp to clamp the two ends of the insulation paper, and then slowly stretch the insulation paper through a pull rope mechanism to test the tensile strength of the insulation paper; the bending strength test is to use a clamp to clamp the two ends of the insulation paper, and then rotate and twist the insulation paper through a torsion mechanism to test the bending strength of the insulation paper.

[0004] The above detection method also has the following shortcomings: 1. In the detection device, tensile strength detection and bending strength detection need to be driven by different power sources, which on the one hand increases the production cost of the detection device, and on the other hand, it is necessary to consider the problem of mutual coordination between different power sources, which increases the difficulty of coordination of the detection device; 2. When performing tensile strength testing, the stretching mechanism generally continuously applies a tensile load to the insulating paper until the insulating paper breaks, and the tensile resistance of the insulating paper is judged by the maximum tensile load detected. Since the tensile load is applied continuously, it is not convenient to observe the tensile resistance of the insulating paper under different tensile loads. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an insulating paper production strength performance detection device, including a support platform and two support boxes fixedly connected to the top of the support platform and symmetrically distributed about the support platform, a detection mechanism is installed on the opposite side of the two support boxes, a sensor assembly is installed on the end of the detection mechanism away from the support box, a clamping mechanism is installed on the side of the sensor assembly away from the detection mechanism, a drive motor is installed in the middle of the support platform, a drive mechanism for driving the detection mechanism is installed inside the support box, and the drive motor and the drive mechanism are connected through a transmission mechanism.

[0006] The detection mechanism includes a stretching component installed inside the support box to drive the clamping mechanism to extend and retract, a rotating component is provided at the bottom of the stretching component to drive the clamping mechanism to rotate, an intermittent transmission component is installed at one end of the stretching component away from the clamping mechanism to drive the stretching component to operate intermittently, and a fixed component is provided on the top of the rotating component to drive it to extend and retract along with the stretching component.

[0007] The driving mechanism includes a driving component that drives the rotating component and the intermittent transmission component individually or synchronously, a mounting frame for supporting the driving component is fixedly installed inside the support box, and a plurality of switching mechanisms for switching the driving components are installed inside the support platform.

[0008] The stretching assembly includes a first sleeve fixedly installed inside the support box, a piston rod is slidably installed on one end of the first sleeve close to the clamping mechanism, a lead screw is rotatably installed on one end of the first sleeve away from the piston rod, and one end of the lead screw close to the piston rod is threadedly inserted into the interior of the piston rod.

[0009] The rotating assembly includes a second sleeve rotatably installed inside the supporting box, a square rod is slidably installed on one end of the second sleeve close to the clamping mechanism, a first transmission disk is fixedly connected to one end of the second sleeve close to the driving mechanism, a turntable is rotatably installed on one end of the piston rod close to the clamping mechanism, the square rod and the turntable are connected by gear transmission, and the sensor assembly is fixedly installed on the side of the turntable away from the piston rod.

[0010] The intermittent transmission assembly includes a first support plate fixedly connected to the bottom of the first sleeve, and the end of the lead screw away from the clamping mechanism passes through the first sleeve and is fixedly sleeved with a groove wheel. A toggle plate that cooperates with the groove wheel is rotatably installed on the side of the first support plate away from the driving assembly, and a second transmission plate is coaxially connected to the side of the toggle plate close to the driving assembly.

[0011] The fixing assembly comprises a second supporting plate fixedly connected to the bottom of the piston rod, a rotating sleeve is rotatably mounted inside the second supporting plate, and the rotating sleeve is fixedly sleeved on the outside of the square rod.

[0012] The driving assembly includes a driving disk rotatably mounted inside a mounting frame, the interior of the driving disk is fixedly connected with a square rotating shaft penetrating the left and right ends of the driving disk, a first friction plate is slidably mounted on one end of the square rotating shaft, a second friction plate is slidably mounted on the other end of the square rotating shaft, and a slip ring is rotatably mounted on one side of the first friction plate and the second friction plate close to the driving disk.

[0013] The switching mechanism includes a swinging component installed inside the support box to push the slip ring to slide along the square rotating shaft, a linkage component installed inside the support platform to drive the swinging component to swing, and a switching component installed on the top of the support platform to drive the linkage component to slide left and right. The number of the swinging components and the linkage components is two, and they are symmetrically distributed about the center of the switching component.

[0014] The swing assembly includes a support rod fixedly installed inside the support box, a lever is rotatably installed on one end of the support rod away from the inner wall of the support box, the top of the lever is fixedly connected to a horn rack, the vertical section of the horn rack is provided with two waist-round grooves, and a connecting column one is symmetrically fixedly connected to the outer wall of the sliding ring front and back, and the connecting column one is movably installed inside the two waist-round grooves.

[0015] The linkage assembly includes a push-pull rod slidably installed inside the support platform, the push-pull rod is fixedly connected to a connecting column 2 at one end close to the lever, a waist-circular groove 1 is opened at the bottom end of the lever, and the connecting column 2 is movably installed inside the waist-circular groove 1. A connecting rod is rotatably installed at one end of the push-pull rod close to the switching assembly. The switching assembly includes a disc rotatably installed inside the support platform, an adjusting knob is fixedly connected to the top of the disc, and the connecting rod is rotatably installed at the bottom of the disc at one end away from the push-pull rod.

[0016] The transmission mechanism is symmetrically distributed about the driving motor, and includes a transmission rod rotatably installed inside the supporting platform. The end of the transmission rod close to the driving motor is connected to the driving motor through a bevel gear set, and the end of the transmission rod away from the driving motor is connected to the driving disk through a transmission belt.

[0017] Beneficial effects of the present invention:

[0018] 1. The present invention adopts a single driving source to drive the motor to drive the driving mechanism, and then the switching mechanism controls the driving mechanism to selectively drive the tensile component and the rotating component to realize the tensile strength detection and bending strength detection of the insulating paper. Compared with the prior art, the tensile strength detection and the bending strength detection are driven by the same driving source, which reduces the production cost and coordination difficulty of the detection device.

[0019] 2. The present invention cooperates with the driving mechanism and the switching mechanism, and utilizes the switching mechanism to control the first friction plate and the second friction plate to respectively transmit the tensile assembly and the rotating assembly, so that the tensile strength test and the bending strength test can be performed separately, and the tensile strength test and the bending strength test can be performed simultaneously. Moreover, since both strength tests are driven by the driving mechanism, the two have high synchronization and are more closely coordinated.

[0020] 3. The present invention utilizes the linkage cooperation of the stretching assembly and the intermittent transmission assembly to drive the stretching assembly to perform intermittent stretching movement, which can increase the tensile load on the insulating paper step by step and in equal amounts, making it convenient to perform different degrees of tensile strength testing on the insulating paper. In addition, the intermittent stretching test allows each level of tensile load to continue for a period of time, which is conducive to observing the stretching condition of the insulating paper under different tensile loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0022] Figure 2 It is a partially cutaway three-dimensional structural schematic diagram of the present invention.

[0023] Figure 3 It is a half-section three-dimensional structural schematic diagram of the detection mechanism of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the driving mechanism of the present invention.

[0025] Figure 5 It is a planar structural schematic diagram of the driving mechanism of the present invention.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the switching mechanism of the present invention.

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0028] Figure 8 yes Figure 6 Enlarged view of point A in the middle.

[0029] In the figure: 1, support platform; 11, support box; 2, detection mechanism; 21, stretching assembly; 211, first sleeve; 212, piston rod; 213, lead screw; 22, rotating assembly; 221, second sleeve; 222, square rod; 223, first transmission disc; 224, turntable; 23, intermittent transmission assembly; 231, first support plate; 232, toggle plate; 233, second transmission disc; 234, groove wheel; 24, fixing assembly; 241, second support plate; 242, rotating sleeve; 3, sensor assembly; 4, clamping mechanism; 41, adjustment assembly; 411, housing; 412, gear; 413, rack; 414, mounting block; 415, rocker arm; 416, Fixing screw; 42, thumb clamp; 5, driving motor; 6, transmission mechanism; 61, transmission rod; 62, transmission belt; 7, driving mechanism; 71, driving assembly; 711, driving disk; 712, square shaft; 713, first friction plate; 714, second friction plate; 715, slip ring; 7151, connecting column one; 72, mounting bracket; 8, switching mechanism; 81, swinging assembly; 811, supporting rod; 812, lever; 8121, waist groove one; 813, ram's horn rack; 8131, waist groove two; 82, linkage assembly; 821, push-pull rod; 8211, connecting column two; 822, connecting rod; 83, switching assembly; 831, disc; 832, adjusting knob. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] See also Figure 1 and Figure 2 , an insulating paper production strength performance detection device, including a supporting platform 1 and two supporting boxes 11 fixedly connected to the top of the supporting platform 1 and symmetrically distributed about the supporting platform 1, a detection mechanism 2 is installed on the opposite side of the two supporting boxes 11, a sensor assembly 3 is installed on the end of the detection mechanism 2 away from the supporting box 11, the sensor assembly 3 includes a tension sensor and a torque sensor, which can detect the tensile force and torsional force exerted on the insulating paper, a clamping mechanism 4 is installed on the side of the sensor assembly 3 away from the detection mechanism 2, a driving motor 5 is installed in the middle of the supporting platform 1, a driving mechanism 7 for driving the detection mechanism 2 is installed inside the supporting box 11, and the driving motor 5 and the driving mechanism 7 are connected through a transmission mechanism 6.

[0032] See also Figure 1 , Figure 2 and Figure 3 The detection mechanism 2 includes a stretching component 21 installed inside the supporting box 11 for driving the clamping mechanism 4 to move telescopically. A rotating component 22 for driving the clamping mechanism 4 to rotate is arranged at the bottom of the stretching component 21. An intermittent transmission component 23 for driving the stretching component 21 to operate intermittently is installed at one end of the stretching component 21 away from the clamping mechanism 4. A fixed component 24 for driving the rotating component 22 to move telescopically along with the stretching component 21 is arranged on the top of the rotating component 22.

[0033] See also Figure 2 and Figure 3 The driving mechanism 7 includes a driving component 71 for driving the rotating component 22 and the intermittent transmission component 23 individually or synchronously. A mounting frame 72 for supporting the driving component 71 is fixedly installed inside the support box 11, and a plurality of switching mechanisms 8 for switching the driving component 71 are installed inside the support platform 1.

[0034] See also Figure 1 , Figure 2 and Figure 3 The stretching assembly 21 includes a first sleeve 211 fixedly installed inside the support box 11, a piston rod 212 is slidably installed on one end of the first sleeve 211 close to the clamping mechanism 4, a lead screw 213 is rotatably installed on one end of the first sleeve 211 away from the piston rod 212, and one end of the lead screw 213 close to the piston rod 212 is threadedly inserted into the interior of the piston rod 212.

[0035] See also Figure 1 , Figure 2 and Figure 3 The rotating assembly 22 includes a second sleeve 221 rotatably installed inside the supporting box 11, a square rod 222 is slidably installed on one end of the second sleeve 221 close to the clamping mechanism 4, a first transmission disk 223 is fixedly connected to one end of the second sleeve 221 close to the driving mechanism 7, a turntable 224 is rotatably installed on one end of the piston rod 212 close to the clamping mechanism 4, the square rod 222 and the turntable 224 are connected by gear transmission, and the sensor assembly 3 is fixedly installed on the side of the turntable 224 away from the piston rod 212.

[0036] See also Figure 2 and Figure 3The intermittent transmission assembly 23 includes a first support plate 231 fixedly connected to the bottom of the first sleeve 211. The end of the lead screw 213 away from the clamping mechanism 4 passes through the first sleeve 211 and is fixedly sleeved with a groove wheel 234. A toggle plate 232 that cooperates with the groove wheel 234 is rotatably installed on the side of the first support plate 231 away from the driving assembly 71. The toggle plate 232 is coaxially connected to a second transmission plate 233 on the side close to the driving assembly 71. The cooperation between the toggle plate 232 and the groove wheel 234 drives the lead screw 213 to rotate intermittently, thereby causing the piston rod 212 to intermittently telescope toward the inside of the first sleeve 211.

[0037] See also Figure 2 and Figure 3 The fixing assembly 24 includes a second support plate 241 fixedly connected to the bottom of the piston rod 212, and a rotating sleeve 242 is rotatably installed inside the second support plate 241. The rotating sleeve 242 is fixedly sleeved on the outside of the square rod 222. When the piston rod 212 moves telescopically, the second support plate 241 can drive the square rod 222 to move telescopically together, so that the square rod 222 always transmits the power to the turntable 224 during its movement.

[0038] See also Figures 1 to 5 The driving assembly 71 includes a driving disk 711 rotatably mounted inside the mounting frame 72, and a square shaft 712 is fixedly connected inside the driving disk 711 and passes through the left and right ends of the driving disk 711. A first friction plate 713 is slidably mounted on one end of the square shaft 712 close to the first transmission disk 223, and a second friction plate 714 is slidably mounted on one end of the square shaft 712 close to the second transmission disk 233. A slip ring 715 is rotatably mounted on one side of the first friction plate 713 and the second friction plate 714 close to the driving disk 711. The first friction plate 713 and the second friction plate 714 are rotatably mounted on one side of the first friction plate 713 and the second friction plate 714. The friction plates 714 rotate coaxially with the driving disk 711, and the first friction plates 713 and the second friction plates 714 can slide along the square rotating shaft 712, so as to selectively drive the rotating component 22 or the intermittent transmission component 23. When the first friction plate 713 is in close contact with the first transmission disk 223, the first friction plate 713 drives the first transmission disk 223 to rotate through friction force. Similarly, when the second friction plate 714 is in close contact with the second transmission disk 233, the second friction plate 714 can also drive the second transmission disk 233 to rotate through friction force.

[0039] See also Figure 2 , Figure 4 and Figure 6The switching mechanism 8 includes a swinging assembly 81 installed inside the support box 11 for pushing the slip ring 715 to slide along the square rotating shaft 712. A linkage assembly 82 is installed inside the support platform 1 for driving the swinging assembly 81 to swing. A switching assembly 83 is rotatably installed on the top of the support platform 1 for driving the linkage assembly 82 to slide left and right. The number of the swinging assembly 81 and the linkage assembly 82 is two, and they are symmetrically distributed about the center of the switching assembly 83. There are two switching mechanisms 8 and they are placed front and back. The rear switching mechanism 8 is used to control the movement of the first friction plate 713, and the front switching mechanism 8 is used to control the movement of the second friction plate 714.

[0040] See also Figure 2 , Figure 4 and Figure 6 The swing assembly 81 includes a support rod 811 fixedly installed inside the support box 11, and a lever 812 is rotatably installed on one end of the support rod 811 away from the inner wall of the support box 11. The top of the lever 812 is fixedly connected to a horn frame 813, and a waist-round groove 8131 is opened in the vertical section of the horn frame 813. A connecting column 7151 is symmetrically fixedly connected to the outer wall of the slip ring 715 front and back, and the connecting column 7151 is movably installed inside the waist-round groove 8131.

[0041] See also Figure 2 , Figure 4 , Figure 6 and Figure 8 The linkage assembly 82 includes a push-pull rod 821 slidably installed inside the support platform 1, and the end of the push-pull rod 821 close to the lever 812 is fixedly connected to the connecting column 2 8211, and the bottom end of the lever 812 is provided with a waist-circular groove 1 8121, and the connecting column 2 8211 is movably installed inside the waist-circular groove 1 8121. The end of the push-pull rod 821 close to the switching assembly 83 is rotatably installed with a connecting rod 822. The switching assembly 83 includes a disk 831 rotatably installed inside the support platform 1, and the top of the disk 831 is fixedly connected to an adjusting knob 832, and the end of the connecting rod 822 away from the push-pull rod 821 is rotatably installed at the bottom of the disk 831.

[0042] See also Figure 1 , Figure 2 and Figure 4 The transmission mechanism 6 is symmetrically distributed about the driving motor 5. The transmission mechanism 6 includes a transmission rod 61 rotatably installed inside the supporting platform 1. The end of the transmission rod 61 close to the driving motor 5 is connected to the driving motor 5 through a bevel gear set. The end of the transmission rod 61 away from the driving motor 5 is connected to the driving disk 711 through a transmission belt 62. The driving motor 5 is meshed with the bevel gears on the left and right transmission rods 61 through a bevel gear. When the driving motor 5 drives the transmission rod 61 to rotate, the rotation directions of the left and right transmission rods 61 are opposite, so that the two ends of the insulating paper are twisted in opposite directions.

[0043] See also Figure 1 and Figure 7 The clamping mechanism 4 includes an adjusting component 41 and a jaw clamp 42. The adjusting component 41 includes a shell 411 fixedly connected to the side of the sensor component 3 away from the detection mechanism 2. A gear 412 is rotatably installed inside the shell 411. The side of the gear 412 is meshed with two racks 413 symmetrically distributed about the center of the gear 412. The end of the rack 413 away from the gear 412 is fixedly connected to a mounting block 414. The top of the gear 412 passes through the top of the shell 411 and is fixedly connected to a rocker arm 415. The end of the rocker arm 415 away from the gear 412 is threadedly inserted with a fixing screw 416. The shell 411 and the mounting block 414 are fixedly installed with a jaw clamp 42 on the side away from the sensor component 3. The spacing between the mounting blocks 414 on both sides of the shell 411 can be adjusted by rotating the rocker arm 415, so that the jaw clamp 42 can fix insulating paper of different widths.

[0044] During specific use, loosen the fixing screw 416, then rotate the rocker arm 415 to drive the gear 412 to rotate, and the gear 412 drives the rack 413 to move telescopically, adjust the position of the mounting block 414, so that the position of the mounting block 414 adapts to the width of the insulating paper, and then use the tiger's mouth clamp 42 to clamp the left and right ends of the insulating paper.

[0045] When the tensile strength of the insulating paper is to be tested, the front adjusting knob 832 is rotated, and the rear adjusting knob 832 remains at the initial position. The disc 831 is driven to rotate clockwise by the adjusting knob 832, and then the disc 831 pulls the push-pull rod 821 to slide in the direction close to the disc 831 through the connecting rod 822, and then the push-pull rod 821 pulls the lever 812 to rotate and push the second friction plate 714 to be close to the second transmission disc 233, and then the driving motor 5 is started, and the driving disc 711 is driven to rotate after the transmission of the transmission mechanism 6, and then the driving disc 711 drives the second transmission disc 233 to rotate through the second friction plate 714, and then the second transmission disc 233 and the groove wheel 234 drive the lead screw 213 to rotate intermittently, so that the piston rod 212 moves toward the inside of the first sleeve 211, and the piston rod 212 drives the clamping mechanism 4 to intermittently stretch the insulating paper, and the tension on the insulating paper is detected by the sensor assembly 3 to complete the tensile strength test of the insulating paper.

[0046] When the bending strength of the insulating paper is to be tested, the rear adjusting knob 832 is rotated, and the front adjusting knob 832 remains in the initial position. The disc 831 is driven to rotate counterclockwise by the adjusting knob 832, and then the disc 831 pulls the push-pull rod 821 to slide away from the disc 831 through the connecting rod 822, and then the push-pull rod 821 pushes the lever 812 to rotate and then pushes the first friction plate 713 to be close to the first transmission disc 223, and then the driving motor 5 is started, and after the transmission of the transmission mechanism 6, the driving disc 711 is driven to rotate, and then the driving disc 711 drives the first transmission disc 223 to rotate through the first friction plate 713, and then after the transmission of the second sleeve 221 and the square rod 222, the turntable 224 is driven to rotate, thereby driving the two ends of the insulating paper to reversely twist, and the torsional force on the insulating paper is detected by the sensor assembly 3 to complete the bending strength test of the insulating paper.

[0047] When the tensile and bending strength tests are to be performed on the insulating paper at the same time, the front and rear adjustment knobs 832 are rotated at the same time. At this time, the first friction plate 713 is tightly attached to the first transmission plate 223, and the second friction plate 714 is tightly attached to the second transmission plate 233. Then the driving motor 5 is driven, and the driving plate 711 drives the first transmission plate 223 and the second transmission plate 233 to rotate at the same time. The first transmission plate 223 drives the turntable 224 to rotate after being driven by the second sleeve 221 and the square rod 222, driving the two ends of the insulating paper to reversely twist. At the same time, the piston rod 212 moves toward the inside of the first sleeve 211 to stretch the two ends of the insulating paper. When the piston rod 212 moves, it drives the square rod 222 to slide toward the inside of the second sleeve 221. At this time, the sensor assembly 3 detects the tensile force and torsional force of the insulating paper.

[0048] After the detection is completed, the drive motor 5 is started to rotate in the reverse direction to return the clamping mechanism 4 to the initial position, and then the drive motor 5 is turned off, the jaws 42 are opened and the insulating paper is taken off.

[0049] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An insulating paper production strength performance testing device, comprising a support platform (1) and two support boxes (11) fixedly connected to the top of the support platform (1) and symmetrically distributed with respect to the support platform (1), characterized in that: A detection mechanism (2) is installed on one side opposite to the two support boxes (11); a sensor assembly (3) is installed on one end of the detection mechanism (2) away from the support box (11); a clamping mechanism (4) is installed on the side of the sensor assembly (3) away from the detection mechanism (2); a drive motor (5) is installed in the middle of the support platform (1); a drive mechanism (7) for driving the detection mechanism (2) is installed inside the support box (11); and the drive motor (5) and the drive mechanism (7) are connected in transmission via a transmission mechanism (6); The detection mechanism (2) comprises a stretching component (21) installed inside the support box (11) and used to drive the clamping mechanism (4) to move telescopically; a rotating component (22) is arranged at the bottom of the stretching component (21) and used to drive the clamping mechanism (4) to rotate; an intermittent transmission component (23) is installed at one end of the stretching component (21) away from the clamping mechanism (4) and drives the stretching component (21) to operate intermittently; and a fixed component (24) is arranged at the top of the rotating component (22) and drives it to move telescopically along with the stretching component (21); The driving mechanism (7) comprises a driving assembly (71) for driving the rotating assembly (22) and the intermittent transmission assembly (23) individually or synchronously, a mounting frame (72) for supporting the driving assembly (71) is fixedly installed inside the supporting box (11), and a plurality of switching mechanisms (8) for switching the driving assemblies (71) are installed inside the supporting platform (1); The driving assembly (71) comprises a driving disk (711) rotatably mounted inside a mounting frame (72); a square rotating shaft (712) penetrating the left and right ends of the driving disk (711) is fixedly connected inside the driving disk (711); a first friction plate (713) is slidably mounted on one end of the square rotating shaft (712); a second friction plate (714) is slidably mounted on the other end of the square rotating shaft (712); and a slip ring (715) is rotatably mounted on one side of the first friction plate (713) and the second friction plate (714) close to the driving disk (711); The switching mechanism (8) comprises a swinging assembly (81) installed inside the support box (11) and used to push the slip ring (715) to slide along the square rotating shaft (712); a linkage assembly (82) is installed inside the support platform (1) and used to drive the swinging assembly (81) to swing; a switching assembly (83) is rotatably installed on the top of the support platform (1) and used to drive the linkage assembly (82) to slide left and right; the number of the swinging assembly (81) and the linkage assembly (82) is two, and they are symmetrically distributed about the center of the switching assembly (83); The stretching assembly (21) comprises a first sleeve (211) fixedly mounted inside the support box (11); a piston rod (212) is slidably mounted on one end of the first sleeve (211) close to the clamping mechanism (4); a lead screw (213) is rotatably mounted on one end of the first sleeve (211) away from the piston rod (212); and an end of the lead screw (213) close to the piston rod (212) is threadedly inserted into the interior of the piston rod (212); The rotating assembly (22) comprises a second sleeve (221) rotatably mounted inside the supporting box (11); a square rod (222) is slidably mounted on one end of the second sleeve (221) close to the clamping mechanism (4); a first transmission disk (223) is fixedly connected to one end of the second sleeve (221) close to the driving mechanism (7); a rotating disk (224) is rotatably mounted on one end of the piston rod (212) close to the clamping mechanism (4); the square rod (222) and the rotating disk (224) are connected via gear transmission; and the sensor assembly (3) is fixedly mounted on a side of the rotating disk (224) away from the piston rod (212); The fixing assembly (24) comprises a second support plate (241) fixedly connected to the bottom of the piston rod (212), a rotating sleeve (242) being rotatably mounted inside the second support plate (241), and the rotating sleeve (242) is fixedly sleeved on the outside of the square rod (222).

2. The insulating paper production strength performance detection device according to claim 1, characterized in that: The intermittent transmission assembly (23) comprises a first support plate (231) fixedly connected to the bottom of the first sleeve (211); one end of the lead screw (213) away from the clamping mechanism (4) passes through the first sleeve (211) and is fixedly sleeved with a groove wheel (234); a dial plate (232) cooperating with the groove wheel (234) is rotatably mounted on a side of the first support plate (231) away from the drive assembly (71); and a second transmission plate (233) is coaxially connected to a side of the dial plate (232) close to the drive assembly (71).

3. The device for detecting the production strength performance of insulating paper according to claim 1, characterized in that: The swing assembly (81) comprises a support rod (811) fixedly mounted inside the support box (11); a lever (812) is rotatably mounted on one end of the support rod (811) away from the inner wall of the support box (11); a horn frame (813) is fixedly connected to the top of the lever (812); a second waist-shaped groove (8131) is formed in the vertical section of the horn frame (813); a connecting column (7151) is symmetrically fixedly connected to the outer wall of the slip ring (715) in the front and rear directions; and the connecting column (7151) is movably mounted inside the second waist-shaped groove (8131).

4. The device for detecting the production strength performance of insulating paper according to claim 3, characterized in that: The linkage assembly (82) comprises a push-pull rod (821) slidably mounted inside the support platform (1); one end of the push-pull rod (821) close to the lever (812) is fixedly connected to a second connecting column (8211); a waist-shaped groove (8121) is provided at the bottom end of the lever (812); the second connecting column (8211) is movably mounted inside the waist-shaped groove (8121); one end of the push-pull rod (821) close to the switching assembly (83) is rotatably mounted to a connecting rod (822); the switching assembly (83) comprises a disk (831) rotatably mounted inside the support platform (1); the top of the disk (831) is fixedly connected to an adjusting knob (832); and one end of the connecting rod (822) away from the push-pull rod (821) is rotatably mounted on the bottom of the disk (831).

5. The device for detecting the production strength performance of insulating paper according to claim 1, characterized in that: The transmission mechanism (6) is symmetrically arranged with respect to the drive motor (5), and comprises a transmission rod (61) rotatably mounted inside the support platform (1); an end of the transmission rod (61) close to the drive motor (5) is transmission-connected to the drive motor (5) via a bevel gear set, and an end of the transmission rod (61) away from the drive motor (5) is transmission-connected to the drive disc (711) via a transmission belt (62).

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