Smooth grinding device for switch contact piece of high-voltage switch cabinet

Abstract

The utility model discloses a flattening and polishing device for a switch contact piece of a high-voltage switch cabinet, and relates to the technical field of polishing equipment. The device comprises a base, a driving part and a millstone, and further comprises a lifting adjusting mechanism, a sleeve, a detection piece and a trigger piece. The detection piece is located below the millstone, when the millstone is connected abnormally, the millstone rotates and deflects, the bottom of the millstone makes contact with the touch block, the static touch block is pushed to shake, through conduction of the rotating rod, the ball slides in the limiting plate, the collision disc at the bottom end of the rotating rod swings, and the elastic force of the spring is overcome; the annular air bag is punctured by virtue of a sharp bulge on the surface of the collision disc, so that stable data detected by the annular air bag change drastically, and the console receives the data of the annular air bag, so that the driving part is controlled in time to stop the rotation of the grinding disc; abnormal abrasion of the switch contact piece caused by continuous flattening and polishing operation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a polishing equipment technical field, concretely relates to a kind of flat polishing device of high-voltage switchgear switch contact piece. BACKGROUND

[0002] High-voltage switchgear is the key equipment in power system, and the flatness and smoothness of switch contact piece inside it are directly related to the conductivity, contact resistance and the stability and safety of equipment operation. In the production process, burr, unevenness and other defects exist on the surface of switch contact piece, and need to be flattened and polished.

[0003] During polishing switch contact piece, the driving part for installing polishing disc can be abnormally connected due to long-term use, vibration or insecure installation, causing the polishing disc to be inclined when rotating at high speed. This inclination not only seriously affects the flatness of the contact piece after polishing, but also causes local excessive wear or scratches on the contact piece, and even leads to product scrap. SUMMARY

[0004] To solve the above problems, the utility model provides a kind of flat polishing device of high-voltage switchgear switch contact piece to solve the problem of inclination of polishing disc when rotating and not timely discovery leading to excessive wear of contact piece.

[0005] The utility model discloses a kind of flat polishing device of high-voltage switchgear switch contact piece to solve the problem of inclination of polishing disc when rotating and not timely discovery leading to excessive wear of contact piece.

[0006] A kind of flat polishing device of high-voltage switchgear switch contact piece, including base, driving part and grinding disc, the driving part is set on the surface of base, and its output end is located in the inside of base, grinding disc is fixedly installed on the top of the output end of driving part, further including lifting adjustment mechanism, sleeve, detection piece and trigger piece, lifting adjustment mechanism is fixedly installed in the inside of base, sleeve is set on the top of the moving end of lifting adjustment mechanism, detection piece is movably connected with sleeve, one end is located in the inside of sleeve, the other end is located below grinding disc, trigger piece is set on the inside bottom of sleeve;

[0007] The detection piece includes a rotating rod, a touch block, a ball, a striking disc, a spring and a sleeve ring, the top end of the rotating rod is fixedly installed with the touch block, the middle part of the rotating rod is fixedly installed with the ball, the ball is movably connected with the sleeve, the bottom end of the rotating rod is fixedly installed with the striking disc, the spring and the sleeve ring are both sleeved on the surface of the rotating rod, the bottom end of the spring is connected with the top surface of the striking disc, the top end of the spring is connected with the bottom surface of the sleeve ring, and the striking disc can contact and trigger the trigger piece to react.

[0008] The number of lifting adjustment mechanism, sleeve, detection piece and trigger piece is multiple groups, and multiple groups of lifting adjustment mechanism, sleeve, detection piece and trigger piece are arranged in a circular array about grinding disc.

[0009] The lifting adjusting mechanism comprises a fixed plate, a screw rod, side plates and a sliding rod, the fixed plate is fixedly installed at the inner bottom of the base, the screw rod is threadedly installed on the surface of the fixed plate, the bottom end of the screw rod is fixedly installed with a dial, the top end of the screw rod is rotationally connected with the bottom of a sleeve, the side plates are fixedly installed on the two sides of the fixed plate, the sliding rod is slidingly inserted with the side plates, and the top end of the sliding rod is fixedly connected with the bottom of the sleeve.

[0010] The sleeve comprises a base, a cylinder and a limiting plate, the base is installed at the top of the lifting adjusting mechanism, the cylinder is arranged at the top of the base, and the top surface of the base is provided with a buckle, and the limiting plate is fixedly installed in the cylinder.

[0011] The surface of the impact disc is fixedly installed with sharp protrusions, the number of the sharp protrusions is multiple groups, and the sharp protrusions are arranged in a circular array along the surface of the impact disc.

[0012] The trigger piece comprises an air bag pressure sensor and a ring-shaped air bag, the air bag pressure sensor is arranged at the inner bottom of the base, the ring-shaped air bag is arranged in the sleeve, and the detection circuit of the air bag pressure sensor is connected with the ring-shaped air bag.

[0013] The beneficial effects of the utility model are as follows:

[0014] When the grinding disc is abnormally connected, the bottom of the grinding disc is in contact with the touching block, the touching block is pushed to shake, the ball slides in the limiting plate through the transmission of the rotating rod, the impact disc at the bottom end of the rotating rod swings, the elastic force of the spring is overcome, the impact disc is in contact with the ring-shaped air bag, the ring-shaped air bag is poked by the sharp protrusions on the surface of the impact disc, the stable data detected by the ring-shaped air bag is changed sharply, the data of the ring-shaped air bag is received by the control panel, so that the rotation of the grinding disc is stopped in time, the abnormal wear of the switch contact piece caused by the continuous flattening and polishing operation is avoided, the driving part and the grinding disc can be maintained and replaced by the staff, the distance between the touching block and the grinding disc is adjusted by rotating the screw rod under the auxiliary guidance of the sliding rod, the detection trigger range of the device is adjusted, and different types of grinding discs can be safely detected. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 is the side sectional schematic diagram of the utility model;

[0017] Figure 3 is the first local sectional schematic diagram of the utility model;

[0018] Figure 4 is the second local sectional schematic diagram of the utility model;

[0019] Figure 5 Figure 3 is a third partial sectional view (disassembled state) of the present application.

[0020] The figure mark: 1, the base; 2, drive component; 3, grinding disc; 4, lifting adjustment mechanism; 401, fixed plate; 402, screw rod; 403, side plate; 404, slide bar; 5, sleeve; 501, base; 502, barrel; 503, limiting plate; 6, detection piece; 601, rotating rod; 602, touch block; 603, ball; 604, striking disc; 605, spring; 606, sleeve ring; 7, trigger piece; 701, air bag pressure sensor; 702, annular air bag. DETAILED DESCRIPTION

[0021] The present application will be further described below in conjunction with specific embodiments, however, people skilled in the art should understand that the detailed description given herein in conjunction with the drawings is for better explanation, and the structure of the present application must exceed the limited embodiments, and for some equivalent replacement schemes or common means, this paper will not make detailed description, but still belongs to the protection scope of the present application.

[0022] Figures 1-5 Figure 1 is the best embodiment of the present application, and the following will be described in conjunction with the drawings Figure 1 -Appendix Figure 5 The present application will be further described below in conjunction with specific embodiments, however, people skilled in the art should understand that the detailed description given herein in conjunction with the drawings is for better explanation, and the structure of the present application must exceed the limited embodiments, and for some equivalent replacement schemes or common means, this paper will not make detailed description, but still belongs to the protection scope of the present application.

[0023] A kind of flat polishing device of high voltage switchgear switch contact piece, including base 1, drive component 2 and grinding disc 3, it further includes lifting adjustment mechanism 4, sleeve 5, detection piece 6 and trigger piece 7, drive component 2 is set to the surface of base 1, its output end is located in the interior of base 1, grinding disc 3 is fixedly installed at the top of the output end of drive component 2, the front side of base 1 is equipped with control cabinet, lifting adjustment mechanism 4 is fixedly installed in the interior of base 1, sleeve 5 is set to the top of the moving end of lifting adjustment mechanism 4, detection piece 6 is movably connected with sleeve 5, one end is located in the interior of sleeve 5, the other end is located in the outside of sleeve 5, below grinding disc 3, trigger piece 7 is set to the bottom of the inside of sleeve 5, and the bottom end of detection piece 6 is correspondingly set with trigger piece 7;

[0024] Specifically, grinding disc 3 is rotated in the interior of base 1 by drive component 2, and switch contact piece is polished flat, the upper part of lifting adjustment mechanism 4 is lifted, the distance between detection piece 6 and grinding disc 3 is adjusted, detection piece 6 is rotated and limited by sleeve 5, the top end of detection piece 6 is contacted with grinding disc 3, and swing occurs, so that the bottom end of detection piece 6 is contacted with trigger piece 7, and the orderly operation of each component is controlled and set by control cabinet.

[0025] The number of the lifting adjusting mechanisms 4, the sleeves 5, the detection pieces 6 and the triggering pieces 7 is multiple groups, and the multiple groups of the lifting adjusting mechanisms 4, the sleeves 5, the detection pieces 6 and the triggering pieces 7 are arranged in a circular array about the grinding disc 3;

[0026] Specifically, when the grinding disc 3 is abnormally tilted, the detection piece 6 can immediately contact a certain group of detection pieces 6, thereby triggering the triggering piece 7 to be opened.

[0027] The lifting adjusting mechanism 4 comprises a fixed plate 401, a screw rod 402, a side plate 403 and a sliding rod 404. The fixed plate 401 is fixedly installed at the inner bottom of the base 1. The screw rod 402 is threadedly installed on the surface of the fixed plate 401. The bottom end of the screw rod 402 is fixedly installed with a dial. The top end of the screw rod 402 is rotationally connected with the bottom of the base 501. The side plate 403 is fixedly installed on both sides of the fixed plate 401. The sliding rod 404 is slidingly inserted with the side plate 403. The top end of the sliding rod 404 is fixedly connected with the bottom of the base 501.

[0028] Specifically, the dial is twisted to drive the screw rod 402 to rotate, so that the base 501 at the top end of the screw rod 402 is pushed to move up and down. The sliding connection of the side plate 403 and the sliding rod 404 enables the base 501 to stably rise and fall with the rotation of the screw rod 402.

[0029] The sleeve 5 comprises a base 501, a cylinder 502 and a limiting plate 503. The base 501 is installed at the top of the lifting adjusting mechanism 4. The cylinder 502 is arranged at the top of the base 501. The top surface of the base 501 is provided with a buckle. Figure 3 As shown in the figure, the buckle limits the cylinder 502 on the upper surface of the base 501. The limiting plate 503 is fixedly installed in the cylinder 502.

[0030] Specifically, the buckle is connected and limited to the base 501 and the cylinder 502, which facilitates the disassembly and replacement of the cylinder 502 and the triggering piece 7 after collision. The limiting plate 503 supports and limits the stable rotation of the detection piece 6 in the cylinder 502.

[0031] The detection piece 6 comprises a rotating rod 601, a touching block 602, a ball 603, a striking disc 604, a spring 605 and a sleeve ring 606. The top end of the rotating rod 601 is fixedly installed with the touching block 602. The middle part of the rotating rod 601 is fixedly installed with the ball 603. The ball 603 is slidingly installed in the limiting plate 503. Specifically, the center position of the limiting plate 503 is provided with a spherical hole. The ball 603 can be universally moved in the spherical hole. The bottom end of the rotating rod 601 is fixedly installed with the striking disc 604. The spring 605 and the sleeve ring 606 are both sleeved on the surface of the rotating rod 601. The bottom end of the spring 605 is connected with the top surface of the striking disc 604. The top end of the spring 605 is connected with the bottom surface of the sleeve ring 606. The top surface of the sleeve ring 606 is in abutment with the bottom surface of the limiting plate 503.

[0032] Specifically, the block 602 is in contact with the bottom surface of the grinding disc 3, thereby pushing the rotating rod 601 to swing, the ball 603 rotates inside the limiting plate 503, thereby supporting the swinging movement of the rotating rod 601, the impact disc 604 is in contact with the trigger 7, so that the trigger 7 is collided and triggered, the spring 605 provides elastic force, so that the sleeve ring 606 is tightly attached to the bottom surface of the ball 603, the rotating rod 601 keeps vertical relative to the limiting plate 503, and accidental collision and contact of the impact disc 604 and the trigger 7 are avoided due to ground inclination and the like.

[0033] The surface of the impact disc 604 is fixedly installed with sharp protrusions, the number of the sharp protrusions is multiple groups, and the sharp protrusions are arranged in a circular array on the surface of the impact disc 604.

[0034] Specifically, the sharp protrusions arranged in the array on the surface of the impact disc 604 can ensure that the impact disc 604 collides with the annular air bag 702 due to the violent shaking of the rotating rod 601.

[0035] The trigger 7 comprises an air bag pressure sensor 701 and an annular air bag 702, the air bag pressure sensor 701 is arranged at the inner bottom of the base 501, the annular air bag 702 is arranged on the inner wall of the cylinder 502, the inside of the cylinder 502 is provided with a limiting block, the limiting block is tightly attached to the upper and lower sides of the annular air bag 702, the detection circuit of the air bag pressure sensor 701 is connected with the annular air bag 702, and the annular air bag 702 is correspondingly arranged with the impact disc 604.

[0036] Specifically, the air bag pressure sensor 701 detects the air pressure change of the annular air bag 702, when the data is stable, the grinding disc 3 is in a normal running state, and when the data is suddenly changed, that is, the annular air bag 702 is broken and leaks, the grinding disc 3 is in an abnormal running state.

[0037] The position of the annular air bag 702 coincides with the movement path of the bottom end of the detection member 6 during the swinging process.

[0038] Specifically, the annular air bag 702 is in contact with the bottom end of the swinging detection member 6, thereby being poked to trigger the abnormal change of the data of the air bag pressure sensor 701.

[0039] In summary: the utility model discloses when using, the staff will be polished switch contact piece fixed by mechanical arm or clamp, make it adhere to the top surface of grinding disc 3, start drive component 2 drive grinding disc 3 rotation, carry out the even polishing, if the connection of grinding disc 3 and drive component 2 appears the problem, lead to grinding disc 3 deflection etc. Abnormal condition, make the bottom surface of grinding disc 3 and touch block 602 contact, thereby promote the swing of rotating lever 601, make the ball 603 inside the inside of spacing plate 503 sway, impact force makes rotating lever 601 drive the impact disc 604 overcome the elasticity of spring 605, impact disc 604 and annular air bag 702 collision, the sharp protruding of impact disc 604 surface will the surface of annular air bag 702 be poked and broken, make it leak and lead to air bag pressure sensor 701 detect annular air bag 702 data abnormal change, console thereby in time stop drive component 2 drive grinding disc 3 continue to run, avoid the even polishing operation of continuing to carry out lead to the abnormal wear of switch contact piece, the staff can immediately disassemble switch contact piece, drive component 2 and grinding disc 3 carry out maintenance inspection, after taking down grinding disc 3, can open the buckle between base 501 and barrel 502, take down barrel 502 and replace the annular air bag 702 of collision trigger, after installing other model grinding disc 3, can twist dial drive screw 402 rotation, under the auxiliary direction of slide bar 404, control base 501 and the component on its surface lift along with it, adjust the distance between touch block 602 and the bottom of grinding disc 3, to guarantee the continuous performance of safety monitoring.

Claims

1. A flattening and grinding device for switch contacts in a high-voltage switchgear, comprising a base (1), a drive component (2), and a grinding disc (3), wherein the drive component (2) is disposed on the surface of the base (1), its output end is located inside the base (1), and the grinding disc (3) is fixedly installed on the top of the output end of the drive component (2), characterized in that, It also includes a lifting adjustment mechanism (4), a sleeve (5), a detection element (6) and a trigger element (7). The lifting adjustment mechanism (4) is fixedly installed inside the base (1). The sleeve (5) is located at the top of the moving end of the lifting adjustment mechanism (4). The detection element (6) is movably connected to the sleeve (5), with one end located inside the sleeve (5) and the other end located below the grinding disc (3). The trigger element (7) is located at the bottom of the inner side of the sleeve (5). The detection component (6) includes a rotating rod (601), a contact block (602), a ball (603), a striking plate (604), a spring (605), and a collar (606). The contact block (602) is fixedly installed at the top of the rotating rod (601), and the ball (603) is fixedly installed in the middle of the rotating rod (601). The ball (603) is omnidirectionally connected to the sleeve (5). The striking plate (604) is fixedly installed at the bottom of the rotating rod (601). The spring (605) and the collar (606) are both sleeved on the surface of the rotating rod (601). The bottom end of the spring (605) is connected to the top surface of the striking plate (604), and the top end of the spring (605) is connected to the bottom surface of the collar (606). The striking plate (604) can contact the trigger (7) and trigger it to react.

2. The device for flattening and polishing switch contacts in a high-voltage switchgear according to claim 1, characterized in that, The lifting adjustment mechanism (4), sleeve (5), detection element (6) and trigger element (7) are in multiple sets, and the multiple sets of lifting adjustment mechanism (4), sleeve (5), detection element (6) and trigger element (7) are arranged in a circular array about the grinding disc (3).

3. The device for flattening and polishing switch contacts in a high-voltage switchgear according to claim 1, characterized in that, The lifting adjustment mechanism (4) includes a fixed plate (401), a screw (402), a side plate (403), and a slide rod (404). The fixed plate (401) is fixedly installed on the inner bottom of the base (1). The screw (402) is threaded onto the surface of the fixed plate (401). A dial is fixedly installed at its bottom end. Its top end is rotatably connected to the bottom of the sleeve (5). The side plate (403) is fixedly installed on both sides of the fixed plate (401). The slide rod (404) is slidably inserted into the side plate (403), and the top end of the slide rod (404) is fixedly connected to the bottom of the sleeve (5).

4. The flattening and grinding device for switch contacts in a high-voltage switchgear according to claim 1, characterized in that, The sleeve (5) includes a base (501), a cylinder (502) and a limiting plate (503). The base (501) is installed on the top of the lifting adjustment mechanism (4), the cylinder (502) is placed on the top of the base (501), and the top surface of the base (501) is provided with a buckle. The limiting plate (503) is fixedly installed inside the cylinder (502).

5. The device for flattening and polishing switch contacts in a high-voltage switchgear according to claim 4, characterized in that, The surface of the impact plate (604) is fixedly equipped with sharp protrusions, which are in multiple sets and arranged in a circular array along the surface of the impact plate (604).

6. The device for flattening and polishing switch contacts in a high-voltage switchgear according to claim 5, characterized in that, The trigger (7) includes an airbag pressure sensor (701) and an annular airbag (702). The airbag pressure sensor (701) is located at the bottom inner side of the base (501), and the annular airbag (702) is placed inside the sleeve (5). The detection circuit of the airbag pressure sensor (701) is connected to the annular airbag (702).

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