Tension testing device for electric porcelain insulator

Abstract

The invention belongs to the technical field of insulator detection equipment, particularly relates to a tension testing device for an electric porcelain insulator, and aims to solve the problem that only a radial tension test is carried out in the existing insulator tension test, and provides the following scheme: the tension testing device comprises a mainframe box, and limiting sliding rods are fixed on two sides of the mainframe box; a bottom tooth plate block is fixed to the bottom of the main machine box, a bottom tooth plate is fixed to the top of the bottom tooth plate block, an annular frame is arranged in the middle of the main machine box, and the annular frame, the limiting sliding rods on the two sides and the bottom tooth plate block at the bottom are installed in a sliding and sleeving mode. According to the invention, the locking claws lock the insulator body, in the testing process, the threaded sleeve driving motors at the two ends drive the threaded sleeve driving gears to rotate, then the tension lead screws at the two sides are driven to stretch and extrude the insulator body in the middle, and different tension tests are applied to the insulator body. The positions of the test end boxes on the two sides are adjusted to enable the insulator body to generate different bending states.

Description

Technical Field

[0001] The invention relates to the technical field of insulator detection equipment, and in particular to a tension testing device for an electric porcelain insulator. Background Art

[0002] An insulator is a device that is installed between conductors at different potentials or between a conductor and a ground potential component and is able to withstand voltage and mechanical stress. It mainly plays two roles: one is to provide mechanical support for the conductors that transmit current; the other is to prevent the current from returning to the ground, that is, to prevent the current from forming a channel with the ground, thereby ensuring that the current only flows in the predetermined circuit.

[0003] For example, in the Chinese patent document with publication number CN117191558A, a tensile test device for an insulator comprises a base, a base is fixed on the top of the base, the tensile test device for an insulator is provided with a protective component, an arc-shaped clamping plate clamps the insulator, the motor continues to work, the concave frame moves inward, the movable plate drives the linkage plate to move close to the base, when the end of the linkage plate away from the movable plate contacts the surface of the long plate, the long plate is driven to move close to the cylinder; the above patent disclosure technology has the following problems: when the insulator is working, it not only bears the tensile force at both ends in a straight state, but also bears the bending state, but it cannot be tested, and during the test process, the change of the tensile force limit of the insulator under force cannot be intuitively observed, and the existing technology is not easy to solve such problems, therefore, there is an urgent need for a tensile test device for an insulator to solve the above problems. Summary of the invention

[0004] Based on the technical problem that the current insulator tension test only performs radial tension test, the present invention proposes a tension test device for electric porcelain insulators.

[0005] The present invention provides a tension testing device for an electric porcelain insulator, comprising a main box, both sides of the main box are fixed with limit sliding rods, the bottom of the main box is fixed with a bottom tooth plate, the top of the bottom tooth plate is fixed with a bottom tooth plate, a ring frame is arranged in the middle of the main box, the ring frame is slidably sleeved and installed with the limit sliding rods on both sides and the bottom tooth plate at the bottom, a ring frame top block is fixed on the top of the ring frame, a clamping mechanism is arranged at the bottom of the ring frame top block, and testing mechanisms are arranged at both sides of the circumferential inner wall of the ring frame, the testing mechanism comprises an inner arc groove of the ring frame provided on the inner wall of the ring frame, a test end box is slidably installed inside the inner arc groove of the ring frame, a tension screw rod is threadedly sleeved in the middle position of the test end box, a clamping cylinder is installed at one end of the tension screw rod through a bearing, an insulator body is sleeved between the clamping cylinders on both sides, a coating chassis is fixed at one end of the main box, a middle partition is fixed in the middle of the coating chassis, and a detection mechanism is arranged at the other end of the main box.

[0006] Preferably, the clamping mechanism includes an electric push rod fixed to the inner wall of the bottom of the ring frame top block, a clamping cross frame fixed to the bottom of the electric push rod, a clamping block slide groove is provided at the bottom of the clamping cross frame, a bidirectional screw rod is installed between the two ends of the clamping block slide groove through a bearing, clamping block sliders are slidably installed at both end positions of the clamping block slide groove, and the clamping block sliders at both ends are respectively threadedly sleeved on the two ends of the bidirectional screw rod, a clamping block driving motor is fixed to the middle position of the bidirectional screw rod, and the clamping block driving motor is fixed to the middle position of the clamping block slide groove.

[0007] Preferably, a clamping block is fixed at the bottom of the clamping block slider, two clamping arc frames are installed on both sides of the bottom of the clamping block through bearings, servos are installed at the fixed axis positions of the two clamping arc frames, and driving rollers are installed on the inner sides of the two clamping arc frames.

[0008] Preferably, a locking mechanism is provided inside the clamping cylinder, and the locking mechanism includes three locking claws distributed in a circumferential array and installed on the inner wall of the clamping cylinder through a bearing, the inner side walls of the locking claws are installed with locking claw rubber blocks, and the rotating shaft ends of the locking claws are provided with locking claw gears.

[0009] Preferably, the circumferential positions of the three locking pawl gears are all meshed with locking toothed rings, and the locking toothed rings are installed with the inside of the clamping cylinder through bearings. A driving motor is installed on the inner wall of the clamping cylinder, and the output shaft of the driving motor is fixed with a gear meshing with the inner wall of the locking toothed ring.

[0010] Preferably, a fixed circular frame is fixed to the middle position of the inner wall of the test end box, a threaded sleeve is installed on the circumferential inner wall of the fixed circular frame through a bearing, a threaded sleeve gear is fixed to one side of the threaded sleeve, a threaded sleeve driving motor is fixed to the outer wall of the fixed circular frame, a threaded sleeve driving gear is fixed to the output shaft of the threaded sleeve driving motor, the threaded sleeve driving gear is meshed with the threaded sleeve gear, three tension limit rods are fixed to one end of the clamping cylinder, and the three tension limit rods are distributed in a circular array, and the three tension limit rods are slidably mounted between the test end box.

[0011] Preferably, side slide grooves are provided on both sides of the main chassis, side slide blocks are slidably installed in the side slide grooves on both sides, laser transmitters are fixed between the side slide blocks on both sides by bolts, and a laser receiver is installed at the top of the main chassis.

[0012] Preferably, limit sliding holes are provided on both sides of the ring frame, and the limit sliding holes on both sides are respectively slidably mounted with the limit sliding rods on both sides, a bottom tooth plate sliding groove is provided at the bottom of the ring frame, the bottom tooth plate segment and the bottom tooth plate sliding groove are plugged and mounted, a mobile drive motor is installed on the bottom inner wall of the ring frame, a ring frame mobile drive gear is fixed to the output shaft of the mobile drive motor, and the ring frame mobile drive gear is meshed with the bottom tooth plate.

[0013] Preferably, a scraper plate is installed on the inner wall of the coating box, and the scraper plate matches the insulator body.

[0014] Preferably, an inner arc groove tooth plate is fixed to the inner wall of the inner arc groove of the ring frame, a test end box slider is fixed to one end of the test end box, the test end box slider is slidably engaged with the inside of the inner arc groove of the ring frame, a test drive motor is installed inside the test end box slider, a test end box drive gear is fixed to the output shaft of the test drive motor, and the test end box drive gear is meshed with the inner arc groove tooth plate.

[0015] The beneficial effects of the present invention are:

[0016] 1. The electric porcelain insulator uses a tension test device. The locking claw locks the insulator body. During the test, the threaded sleeve driving motor at both ends drives the threaded sleeve driving gear to rotate, thereby driving the tension screws on both sides to stretch and squeeze the middle insulator body, applying different tension tests to the insulator body, and adjusting the positions of the test end boxes on both sides to make the insulator body produce different bending states.

[0017] 2. The tensile testing device for the electric porcelain insulator is used. The insulator body is moved to a horizontal state. The laser transmitter emits laser to the reflective coating on the circumferential outer wall of the insulator body. The laser receiver is used to identify the reflective layer laser on the surface of the insulator body. The density of the faults of the reflective coating is detected to determine the effect of different tensile forces on the insulator body.

[0018] 3. The tensile testing device for the electric porcelain insulator has a coating box with melted wax liquid and reflective coating liquid inside. First, the insulator body is placed in the wax liquid to coat a layer of wax liquid. After taking it out, the coated wax layer is scraped off on the scraper plate to keep it flat. Then, the insulator body coated with the wax layer is moved into the reflective coating liquid to coat a uniform reflective coating layer, which is convenient for the detection of the insulator body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure of a tension test device for electric porcelain insulators proposed by the present invention;

[0020] Figure 2This is a schematic diagram of the other side of the overall structure of a tensile testing device for electric porcelain insulators proposed by the present invention;

[0021] Figure 3 A schematic diagram of the structure of a testing mechanism of a tensile testing device for electric porcelain insulators proposed by the present invention;

[0022] Figure 4 A schematic diagram of the structure of a clamping mechanism of a tensile testing device for electric porcelain insulators proposed by the present invention;

[0023] Figure 5 A schematic diagram of the internal structure of a test end box of a tensile test device for electric porcelain insulators proposed by the present invention;

[0024] Figure 6 The present invention provides a schematic structural diagram of a locking mechanism of a tensile testing device for an electric porcelain insulator.

[0025] In the figure: 1, main chassis; 2, limit slide bar; 3, bottom gear plate; 4, bottom gear plate; 5, coating chassis; 6, scraper plate; 7, insulator body; 8, clamping cross frame; 9, ring frame top block; 10, clamping cylinder; 11, test end box; 12, ring frame; 13, inner arc groove of ring frame; 14, middle partition plate; 15, side slide groove; 16, side slide block; 17, laser transmitter; 18, laser receiver; 19, electric push rod; 20, test end box slide block; 21, test end box driving gear; 22, inner arc groove tooth plate; 23, ring frame moving drive Gear; 24, bottom gear plate slide; 25, limit slide hole; 26, clamping block slide; 27, clamping block slider; 28, clamping block drive motor; 29, bidirectional screw; 30, clamping arc frame; 31, clamping block; 32, drive roller; 33, threaded sleeve; 34, fixed round frame; 35, threaded sleeve gear; 36, tension screw; 37, locking gear ring; 38, locking claw; 39, tension limit rod; 40, threaded sleeve drive motor; 41, threaded sleeve drive gear; 42, locking claw gear; 43, locking claw rubber block. DETAILED DESCRIPTION

[0026] Reference Figure 1-Figure 6A tensile testing device for an electric porcelain insulator comprises a main box 1, both sides of the main box 1 are fixed with limit slide bars 2, the bottom of the main box 1 is fixed with a bottom tooth plate 3, the top of the bottom tooth plate 3 is fixed with a bottom tooth plate 4, a ring frame 12 is arranged in the middle of the main box 1, the ring frame 12 is slidably sleeved and installed with the limit slide bars 2 on both sides and the bottom tooth plate 3 at the bottom, a ring frame top block 9 is fixed on the top of the ring frame 12, a clamping mechanism is arranged at the bottom of the ring frame top block 9, and both sides of the circumferential inner wall of the ring frame 12 are provided with The testing mechanism includes an inner arc groove 13 provided on the inner wall of the ring frame 12, a test end box 11 is slidably installed inside the inner arc groove 13, a tension screw rod 36 is threadedly sleeved in the middle position of the test end box 11, a clamping cylinder 10 is installed at one end of the tension screw rod 36 through a bearing, an insulator body 7 is sleeved between the clamping cylinders 10 on both sides, a coating chassis 5 is fixed to one end of the main chassis 1, a middle partition plate 14 is fixed in the middle of the coating chassis 5, and a detection mechanism is arranged at the other end of the main chassis 1.

[0027] Furthermore, the clamping mechanism includes an electric push rod 19 fixed to the inner wall of the bottom of the ring frame top block 9, a clamping cross frame 8 fixed to the bottom of the electric push rod 19, a clamping block slide 26 is provided at the bottom of the clamping cross frame 8, a bidirectional screw rod 29 is installed between the two ends of the clamping block slide 26 through bearings, a clamping block slider 27 is slidably installed at both end positions of the clamping block slide 26, and the clamping block sliders 27 at both ends are respectively threadedly sleeved on the two ends of the bidirectional screw rod 29, a clamping block driving motor 28 is fixed to the middle position of the bidirectional screw rod 29, and the clamping block driving motor 28 is fixed to the middle position of the clamping block slide 26.

[0028] Furthermore, a clamping block 31 is fixed to the bottom of the clamping block slider 27, and two clamping arc frames 30 are installed on both sides of the bottom of the clamping block 31 through bearings. Servo gears are installed at the fixed axis positions of the two clamping arc frames 30, and driving rollers 32 are installed on the inner sides of the two clamping arc frames 30.

[0029] Furthermore, a locking mechanism is provided inside the clamping cylinder 10, and the locking mechanism includes three locking claws 38 distributed in a circumferential array and installed on the inner wall of the clamping cylinder 10 through bearings, the inner side walls of the locking claws 38 are installed with locking claw rubber blocks 43, and the rotating shaft ends of the locking claws 38 are provided with locking claw gears 42.

[0030] Furthermore, the circumferential positions of the three locking pawl gears 42 are all meshed with locking toothed rings 37, and the locking toothed rings 37 are installed with the interior of the clamping tube 10 through bearings. A driving motor is installed on the inner wall of the clamping tube 10, and the output shaft of the driving motor is fixed with a gear meshing with the inner wall of the locking toothed ring 37.

[0031] Furthermore, a fixed circular frame 34 is fixed in the middle position of the inner wall of the test end box 11, a threaded sleeve 33 is installed on the circumferential inner wall of the fixed circular frame 34 through a bearing, a threaded sleeve gear 35 is fixed on one side of the threaded sleeve 33, a threaded sleeve driving motor 40 is fixed on the outer wall of the fixed circular frame 34, a threaded sleeve driving gear 41 is fixed to the output shaft of the threaded sleeve driving motor 40, and the threaded sleeve driving gear 41 is meshed with the threaded sleeve gear 35, three tension limit rods 39 are fixed at one end of the clamping tube 10, and the three tension limit rods 39 are distributed in a circular array, and the three tension limit rods 39 are slidably mounted between the test end box 11.

[0032] Furthermore, side slide grooves 15 are provided on both sides of the main chassis 1, and side slide blocks 16 are slidably installed in the side slide grooves 15 on both sides. Laser transmitters 17 are fixed between the side slide blocks 16 on both sides by bolts, and a laser receiver 18 is installed at the top position of the main chassis 1.

[0033] Furthermore, limiting sliding holes 25 are provided on both sides of the ring frame 12, and the limiting sliding holes 25 on both sides are respectively slidably mounted with the limiting sliding rods 2 on both sides, a bottom tooth plate slide groove 24 is provided at the bottom of the ring frame 12, the bottom tooth block 3 and the bottom tooth plate slide groove 24 are plugged and sleeved, a mobile drive motor is installed on the bottom inner wall of the ring frame 12, and a ring frame mobile drive gear 23 is fixed to the output shaft of the mobile drive motor, and the ring frame mobile drive gear 23 is meshed with the bottom tooth plate 4.

[0034] Furthermore, a scraper plate 6 is installed on the inner wall of the coating box 5 , and the scraper plate 6 matches the insulator body 7 .

[0035] Furthermore, an inner arc groove tooth plate 22 is fixed to the inner wall of the inner arc groove 13 of the ring frame, a test end box slider 20 is fixed to one end of the test end box 11, the test end box slider 20 is slidably engaged with the inside of the inner arc groove 13 of the ring frame, a test drive motor is installed inside the test end box slider 20, a test end box drive gear 21 is fixed to the output shaft of the test drive motor, and the test end box drive gear 21 is meshed with the inner arc groove tooth plate 22.

[0036] When the present invention is used: the steps of using the test device to perform a tensile test on an insulator are: coating-testing-detection steps;

[0037] Coating: During the coating process, the electric push rod 19 controls the lifting and lowering of the clamping cross frame 8 at the bottom, and the bidirectional screw rod 29 drives the clamping block driving motor 28 to move the clamping blocks 31 at both ends to a suitable position for clamping the insulator, clamping the insulator body 7, and the clamped insulator body 7 can be rotated by driving the driving roller 32. During coating, the coating box 5 contains melted wax liquid and reflective coating liquid respectively. First, the insulator body 7 is placed in the wax liquid to coat a layer of wax liquid. After taking it out, the wax layer that has been coated and fixed is scraped off on the scraper plate 6 to keep it flat, and then the insulator body 7 coated with the wax layer is moved into the reflective coating liquid to coat a uniform layer of reflective coating;

[0038] Test: The coated insulator body 7 is moved to the inner sleeve of the clamping tube 10, and the locking claw 38 locks the insulator body 7. During the test, the threaded sleeve driving motor 40 at both ends drives the threaded sleeve driving gear 41 to rotate, thereby driving the tension screw rods 36 at both sides to stretch and squeeze the insulator body 7 in the middle, applying different tension tests to the insulator body 7, and adjusting the positions of the test end boxes 11 at both sides to make the insulator body 7 produce different bending states;

[0039] Detection: After each test, the insulator body 7 is moved to a horizontal state, the laser transmitter 17 emits laser light to the reflective coating on the circumferential outer wall of the insulator body 7, and the laser receiver 18 is used to identify the reflective layer laser on the surface of the insulator body 7, and the density of the faults of the reflective coating is detected to determine the effect of different tensions on the insulator body 7.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tensile testing device for an electric porcelain insulator, comprising a main box (1), both sides of the main box (1) are fixed with limit slide bars (2), the bottom of the main box (1) is fixed with a bottom tooth plate (3), the top of the bottom tooth plate (3) is fixed with a bottom tooth plate (4), characterized in that: A ring frame (12) is arranged in the middle of the main box (1), and the ring frame (12) is slidably mounted with the limit sliding rods (2) on both sides and the bottom gear plate (3) at the bottom. A ring frame top block (9) is fixed on the top of the ring frame (12), and a clamping mechanism is arranged at the bottom of the ring frame top block (9). Testing mechanisms are arranged at both sides of the circumferential inner wall of the ring frame (12), and the testing mechanism includes a ring frame inner arc groove (13) opened on the inner wall of the ring frame (12), and the ring frame inner arc groove (13) is provided. ) is slidably installed inside, a tension screw (36) is threadedly sleeved in the middle position of the test end box (11), one end of the tension screw (36) is installed with a clamping cylinder (10) through a bearing, an insulator body (7) is sleeved between the clamping cylinders (10) on both sides, a coating chassis (5) is fixed to one end of the main chassis (1), a middle partition (14) is fixed in the middle of the coating chassis (5), and a detection mechanism is arranged at the other end of the main chassis (1).

2. A tensile testing device for electric porcelain insulators according to claim 1, characterized in that: The clamping mechanism comprises an electric push rod (19) fixed to the inner wall of the bottom of the ring frame top block (9), a clamping cross frame (8) fixed to the bottom of the electric push rod (19), a clamping block slide groove (26) provided at the bottom of the clamping cross frame (8), a bidirectional screw rod (29) installed between the two ends of the clamping block slide groove (26) through bearings, a clamping block slider (27) slidably installed at both ends of the clamping block slide groove (26), and the clamping block sliders (27) at both ends are respectively threadedly sleeved on the two ends of the bidirectional screw rod (29), a clamping block driving motor (28) is fixed at the middle position of the bidirectional screw rod (29), and the clamping block driving motor (28) is fixed at the middle position of the clamping block slide groove (26).

3. A tensile testing device for electric porcelain insulators according to claim 2, characterized in that: A clamping block (31) is fixed at the bottom of the clamping block slider (27), two clamping arc frames (30) are installed on both sides of the bottom of the clamping block (31) through bearings, steering gears are installed at the fixed shaft positions of the two clamping arc frames (30), and driving rollers (32) are installed on the inner sides of the two clamping arc frames (30).

4. A tensile testing device for electric porcelain insulators according to claim 1, characterized in that: A locking mechanism is arranged inside the clamping cylinder (10), and the locking mechanism comprises three locking claws (38) arranged in a circumferential array and mounted on the inner wall of the clamping cylinder (10) through bearings, a locking claw rubber block (43) is mounted on the inner side wall of each locking claw (38), and a locking claw gear (42) is arranged at the rotating shaft end of the locking claw (38).

5. A tensile testing device for electric porcelain insulators according to claim 4, characterized in that: The circumferential positions of the three locking claw gears (42) are all meshed with locking toothed rings (37), and the locking toothed rings (37) are installed with the inside of the clamping cylinder (10) through bearings. A driving motor is installed on the inner wall of the clamping cylinder (10), and the output shaft of the driving motor is fixed with a gear meshed with the inner wall of the locking toothed ring (37).

6. A tensile testing device for electric porcelain insulators according to claim 1, characterized in that: A fixed circular frame (34) is fixed at the middle position of the inner wall of the test end box (11); a threaded sleeve (33) is installed on the circumferential inner wall of the fixed circular frame (34) through a bearing; a threaded sleeve gear (35) is fixed at one side of the threaded sleeve (33); a threaded sleeve driving motor (40) is fixed to the outer wall of the fixed circular frame (34); a threaded sleeve driving gear (41) is fixed to the output shaft of the threaded sleeve driving motor (40); the threaded sleeve driving gear (41) is meshed with the threaded sleeve gear (35); three tension limiting rods (39) are fixed to one end of the clamping tube (10), and the three tension limiting rods (39) are distributed in a circumferential array; the three tension limiting rods (39) are slidably mounted between the test end box (11).

7. A tensile testing device for electric porcelain insulators according to claim 1, characterized in that: Side sliding grooves (15) are provided on both sides of the main box (1), and side sliding blocks (16) are slidably installed in the side sliding grooves (15) on both sides. A laser transmitter (17) is fixed between the side sliding blocks (16) on both sides by bolts, and a laser receiver (18) is installed at the top of the main box (1).

8. The tensile testing device for electric porcelain insulators according to claim 1, characterized in that: The ring frame (12) is provided with limit sliding holes (25) on both sides, and the limit sliding holes (25) on both sides are respectively slidably mounted with the limit sliding rods (2) on both sides. The bottom of the ring frame (12) is provided with a bottom tooth plate sliding groove (24), and the bottom tooth plate (3) and the bottom tooth plate sliding groove (24) are plugged and sleeved. A mobile driving motor is installed on the inner wall of the bottom of the ring frame (12), and the output shaft of the mobile driving motor is fixed with a ring frame mobile driving gear (23), and the ring frame mobile driving gear (23) is meshed with the bottom tooth plate (4).

9. A tensile testing device for electric porcelain insulators according to claim 1, characterized in that: A scraper plate (6) is installed on the inner wall of the coating machine box (5), and the scraper plate (6) matches the insulator body (7).

10. The tensile testing device for electric porcelain insulators according to claim 1, characterized in that: An inner arc groove tooth plate (22) is fixed to the inner wall of the ring frame inner arc groove (13); a test end box slider (20) is fixed to one end of the test end box (11); the test end box slider (20) is slidably engaged with the inside of the ring frame inner arc groove (13); a test drive motor is installed inside the test end box slider (20); a test end box drive gear (21) is fixed to the output shaft of the test drive motor; and the test end box drive gear (21) is meshed with the inner arc groove tooth plate (22).

Images