CN216097978U

CN216097978U - Excitation slip ring online grinding device of bulb through-flow type hydraulic generator

Info

Publication number: CN216097978U
Application number: CN202122485151.9U
Authority: CN
Inventors: 梅立; 韦辉; 王海锋; 黄琳茗
Original assignee: Guangxi Zhuojie Power Engineering Maintenance Co ltd
Current assignee: Guangxi Zhuojie Power Engineering Maintenance Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-03-22
Anticipated expiration: 2031-10-15

Abstract

The utility model discloses an excitation slip ring online grinding device of a bulb tubular hydraulic generator, which comprises a two-dimensional adjusting seat, a damping part, a wheel seat and a grinding wheel, wherein the damping part is horizontally arranged at the driving end of the two-dimensional adjusting seat along the front-back direction, the damping end of the damping part faces forwards, the wheel seat is arranged at the damping end of the damping part, the grinding wheel is provided with a wheel shaft, the wheel shaft of the grinding wheel is vertically arranged and connected with the wheel seat, the grinding wheel can rotate relative to the wheel seat, the two-dimensional adjusting seat is used for adjusting the position of the damping part in the horizontal plane, the edge of the grinding wheel is used for being contacted with the outer edge of the excitation slip ring of the bulb tubular hydraulic generator, so that the position of the grinding wheel in the horizontal plane can be flexibly adjusted, the grinding wheel rotates along with the excitation slip ring when contacting with the excitation slip ring and grinds burrs on the outer edge of the excitation slip ring, meanwhile, the damping piece can provide a barrier avoiding space for the grinding wheel, and the grinding wheel is prevented from influencing the normal operation of the excitation slip ring when being used for grinding.

Description

Excitation slip ring online grinding device of bulb through-flow type hydraulic generator

Technical Field

The utility model belongs to the field of hydropower station engineering machinery, and particularly relates to an excitation slip ring online grinding device of a bulb through-flow type hydraulic generator.

Background

The excitation slip ring is an important component of a bulb through-flow type hydroelectric generating set and is a key component for dynamic and static contact and energy exchange of the generator, a collector ring and carbon brushes of the excitation slip ring are arranged on a small shaft outside an upstream wind shield of the generator, 44 carbon brushes are distributed on an upper sliding ring and a lower sliding ring (collector ring), the carbon brushes are made of high-wear-resistance dust-free metal graphite materials, the collector ring is made of high-strength materials, and the surface of the collector ring is polished; the collector ring and the insulating part of the exciting cable lead are made of oil-proof and moisture-proof materials. The most common faults of the excitation slip ring of the generator set, namely, the over-high temperature of the collector ring, the serious fire of the carbon brush and the like occur at the initial running stage, if the faults can not be processed in time, the burning loss of the collector ring is caused, and the safety production is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problems, an object of the present invention is to provide a polishing apparatus having a simple structure and capable of polishing burrs on an excitation slip ring of a bulb through-flow turbine generator on-line.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides an online grinder of excitation sliding ring of bulb through-flow hydraulic generator, includes two-dimentional regulation seat, damping piece, wheel seat and emery wheel, the damping piece along fore-and-aft direction horizontal setting in the drive end of two-dimentional regulation seat, the damping end of damping piece is forward, the wheel seat is installed the damping end of damping piece, just the emery wheel has the shaft, just the shaft of emery wheel vertical setting and with the wheel seat is connected, the emery wheel can rotate for the wheel seat, the two-dimentional regulation seat is used for adjusting the position of damping piece in the horizontal plane, the edge of emery wheel is used for contacting with the outward flange of the excitation sliding ring of bulb through-flow hydraulic generator.

The beneficial effects of the above technical scheme are that: the position of emery wheel in the horizontal plane can be adjusted in a flexible way like this, and the emery wheel rotates and polishes the burr to the outward flange of excitation sliding ring along with excitation sliding ring when with the contact of excitation sliding ring, and the damping piece can avoid the barrier space for the emery wheel provides simultaneously, avoids the emery wheel to influence the normal operating of excitation sliding ring when polishing.

In the technical scheme, the two-dimensional adjusting seat comprises a linear adjusting seat and a cross rod, the driving end of the linear adjusting seat faces forwards, a threaded column is convexly arranged at the end part of the driving end of the linear adjusting seat forwards, the cross rod is horizontally arranged along the left and right directions, and is provided with a strip-shaped hole which penetrates forwards and backwards and is arranged along the left and right directions, the threaded column penetrates through the strip-shaped hole of the cross rod and is provided with at least one nut at the front end of the threaded column in a threaded mode so as to fix the cross rod at the driving end of the linear adjusting seat, or the nut is unscrewed so as to adjust the position of the cross rod left and right relative to the linear adjusting seat, the linear adjusting seat is used for driving the cross rod to move along the front and back directions, and the left end or the right end of the cross rod forms the driving end of the two-dimensional adjusting seat.

The beneficial effects of the above technical scheme are that: the structure is simple, and the adjustment is convenient.

Among the above-mentioned technical scheme linear adjustment seat includes base, slide, lead screw, bracing piece and rotation handle, the base sets up along the fore-and-aft direction level, slide slidable mounting is in the upper end of base, just the slide can follow the fore-and-aft direction on the base and slide, the lead screw is installed along the fore-and-aft direction level setting and rotate on the base, just be equipped with along the fore-and-aft direction on the slide with lead screw thread fit's screw, the front end of lead screw stretches into in the screw and with slide threaded connection, install the tip of lead screw rear end rotate the handle, the bracing piece sets up along the fore-and-aft direction level, and its rear end with the slide is connected fixedly, the front end of bracing piece constitutes the drive end of linear adjustment seat.

The beneficial effects of the above technical scheme are that: the structure is simple, and the front and back adjustment is convenient.

In the technical scheme, the rotating handle is a hand wheel which is coaxially and fixedly arranged at the rear end of the screw rod.

The beneficial effects of the above technical scheme are that: the structure is simple, and the rotation is convenient.

In the technical scheme, the damping part comprises a cylinder body, a rod body and a spring, the cylinder body is horizontally arranged along the front-back direction, the front end of the rod body is open, the rear end of the cylinder body is connected with the driving end of the two-dimensional adjusting seat, the rod body is horizontally arranged along the front and rear directions, the rear end of the spring extends into the cylinder body through the opening at the front end of the cylinder body, the rear end of the rod body is provided with an outward flange, the opening at the front side of the cylinder body is provided with an inward flange, the spring is arranged in the cylinder body, and the two ends of the rod body are respectively propped against the rear end of the rod body and the inner wall of the rear end of the barrel body, the rod body overcomes the elasticity of the spring to move backwards under the action of external force, or the external force is cancelled, the rod body moves forwards under the action of the elastic force of the spring to the outward flange at the rear end of the rod body to be abutted against the inward flange at the front end of the cylinder body, and the front end of the rod body forms the damping end of the damping piece.

The beneficial effects of the above technical scheme are that: therefore, the grinding wheel is always in contact with the periphery of the excitation slip ring under the action of the damping piece, and the normal operation of the excitation slip ring is not influenced.

In the technical scheme, the cross section of the rod body is square, and the inner hole at the inner flanging at the front side of the cylinder body is a square hole matched with the cross section of the rod body.

The beneficial effects of the above technical scheme are that: so can avoid the body of rod to rotate for the barrel to avoid the direction change of the shaft of emery wheel.

Drawings

FIG. 1 is a schematic structural diagram of an excitation slip ring online grinding device of a bulb through-flow type hydraulic generator according to an embodiment of the utility model;

FIG. 2 is a view of the grinding wheel, wheel carrier and damping member in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of the cross bar configuration of an embodiment of the present invention;

fig. 4 is a schematic structural diagram of the two-dimensional adjusting seat in the embodiment of the utility model.

In the figure: the device comprises a two-dimensional adjusting seat 1, a linear adjusting seat 11, a 111 threaded column, a 112 base, a 113 sliding seat, a 114 screw rod, a 115 supporting rod, a 116 rotating handle, a 117 bearing seat, a 12 cross rod, a 121 strip-shaped hole, a 13 nut, a 2 damping piece, a 21 cylinder, a 22 rod body, a 23 spring, a 3-wheel seat, a 4-grinding wheel and a 41-wheel axle.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1-4, the present embodiment provides an online grinding device for an excitation slip ring of a bulb through-flow type hydro-generator, comprising a two-dimensional adjusting seat 1, a damping member 2, a wheel seat 3 and a grinding wheel 4, wherein the damping member 2 is horizontally arranged at a driving end of the two-dimensional adjusting seat 1 along a front-back direction, a damping end of the damping member 2 faces forward, the wheel seat 3 is mounted at the damping end of the damping member 2, the grinding wheel 4 has a wheel shaft 41, the wheel shaft 41 of the grinding wheel 4 is vertically arranged and connected with the wheel seat 3, the grinding wheel 4 is rotatable relative to the wheel seat 3, the two-dimensional adjusting seat 1 is used for adjusting a position of the damping member 2 in a horizontal plane, an edge of the grinding wheel is used for contacting with an outer edge of the excitation slip ring of the bulb through-flow type hydro-generator, so as to flexibly adjust the position of the grinding wheel in the horizontal plane, and the emery wheel rotates and polishes to the burr of excitation sliding ring's outward flange along with excitation sliding ring when with excitation sliding ring contact, and the damping piece can provide for the emery wheel simultaneously and keep away the barrier space, avoids the emery wheel to influence the normal operating of excitation sliding ring when polishing. The wheel seat is a U-shaped piece, the notch of the wheel seat faces forwards, the inner groove of the wheel seat is communicated from left to right, and the wheel shaft of the grinding wheel can be rotatably connected with the wheel seat.

In the technical scheme, the two-dimensional adjusting seat 1 comprises a linear adjusting seat 11 and a cross rod 12, wherein the driving end of the linear adjusting seat 11 faces forwards, the end part of the driving end of the linear adjusting seat 11 is convexly provided with a threaded column 111, the cross rod 12 is horizontally arranged along the left-right direction, and it has a strip hole 121 penetrating front and back and set along left and right direction, the threaded column 111 passes through the strip hole 121 of the cross bar 12 and at least one nut 13 is installed at the front end of the threaded column 111 in a threaded manner to fix the cross bar 12 at the driving end of the linear adjusting seat 11, or unscrews the nut 13 to adjust the position of the cross bar 12 left and right with respect to the linear adjustment block 11, the linear adjusting seat 11 is used for driving the cross rod 12 to move along the front-back direction, and the left end or the right end of the cross rod 12 forms the driving end of the two-dimensional adjusting seat 1.

In the above technical solution, the linear adjustment base 11 includes a base 112, a sliding base 113, a screw rod 114, a support rod 115 and a rotation handle 116, the base 112 is horizontally disposed along the front-back direction, the sliding base 113 is slidably disposed at the upper end of the base 112, the sliding base 113 can slide on the base 112 along the front-back direction, the screw rod 114 is horizontally disposed along the front-back direction and rotatably disposed on the base 112, a screw hole in threaded fit with the screw rod 114 is disposed on the sliding base 113 along the front-back direction, the front end of the screw rod 114 extends into the screw hole and is in threaded connection with the sliding base 113, the end of the rear end of the screw rod 114 is provided with the rotation handle 116, the support rod 115 is horizontally disposed along the front-back direction, and the rear end thereof is fixedly connected with the sliding base 113, the front end of the support rod 115 constitutes the driving end of the linear adjustment base 11, which has a simple structure, and the front and back adjustment is convenient. The screw rod is rotatably installed on the base through two bearing seats 117 distributed at intervals, the sliding seat is located between the two bearing seats, and the handle is rotated in forward rotation or reverse rotation to drive the screw rod to rotate in forward rotation or reverse rotation and drive the sliding seat to drive the supporting rod to move back and forth. The linear adjusting seat is prior art and will not be described in detail herein.

In the above technical solution, the rotating handle 116 is a hand wheel, which is coaxially and fixedly installed at the rear end of the screw rod 114, and has a simple structure and is convenient to rotate.

In the above technical solution, the damping member 2 includes a cylinder 21, a rod 22 and a spring 23, the cylinder 21 is horizontally disposed along the front-back direction, the front end of the cylinder is open, the rear end of the cylinder 21 is connected with the driving end of the two-dimensional adjusting seat 1, the rod 22 is horizontally disposed along the front-back direction, the rear end of the rod extends into the cylinder 21 through the opening of the front end of the cylinder 21, the rear end of the rod 22 is provided with an outward flange, the opening of the front side of the cylinder 21 is provided with an inward flange, the spring 23 is disposed in the cylinder 21, and the two ends of the spring respectively abut against the rear end of the rod 22 and the inner wall of the rear end of the cylinder 21, the rod 22 overcomes the elastic force of the spring 23 under the action of the external force, or cancels the external force, the rod 22 moves forward under the elastic force of the spring 23 to abut against the outward flange of the rear end of the rod 22 and the inward flange of the front end of the cylinder 21, the front end of the rod body 22 forms the damping end of the damping part 2, so that the grinding wheel is always in contact with the periphery of the excitation slip ring under the action of the damping part, but the normal operation of the excitation slip ring is not influenced.

In the technical scheme, the cross section of the rod body 22 is square, and the inner hole at the inner flanging at the front side of the cylinder body 21 is a square hole matched with the cross section of the rod body 22, so that the rod body can be prevented from rotating relative to the cylinder body, and the direction change of a wheel shaft of a grinding wheel is avoided.

The excitation slip ring online grinding device of the bulb through-flow type hydraulic generator provided by the embodiment is installed beside the bulb through-flow type hydraulic generator, and burrs on the excitation slip ring are ground online by adjusting the position of the grinding wheel to the outer edge of the grinding wheel to be in contact with the outer side wall of the excitation slip ring of the bulb through-flow type hydraulic generator, so that the problem that equipment breaks down due to the fact that a carbon brush is exposed to fire when the bulb through-flow type hydraulic generator works is avoided.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An excitation slip ring online grinding device of a bulb through-flow type hydraulic generator is characterized by comprising a two-dimensional adjusting seat (1), a damping piece (2), a wheel seat (3) and a grinding wheel (4), the damping piece (2) is horizontally arranged at the driving end of the two-dimensional adjusting seat (1) along the front-back direction, the damping end of the damping piece (2) faces forwards, the wheel seat (3) is arranged at the damping end of the damping piece (2), the grinding wheel (4) is provided with a wheel shaft (41), the wheel shaft (41) of the grinding wheel (4) is vertically arranged and connected with the wheel seat (3), the grinding wheel (4) can rotate relative to the wheel seat (3), the two-dimensional adjusting seat (1) is used for adjusting the position of the damping piece (2) in a horizontal plane, the edge of the grinding wheel (4) is used for contacting with the outer edge of an excitation slip ring of the bulb through-flow type hydraulic generator.

2. The excitation slip ring online grinding device of the bulb through-flow type hydraulic generator according to claim 1, wherein the two-dimensional adjusting seat (1) comprises a linear adjusting seat (11) and a cross rod (12), the driving end of the linear adjusting seat (11) is forward, the end of the driving end of the linear adjusting seat (11) is provided with a threaded column (111) in a forward protruding manner, the cross rod (12) is horizontally arranged along the left-right direction and is provided with a strip-shaped hole (121) penetrating forwards and backwards and arranged along the left-right direction, the threaded column (111) penetrates through the strip-shaped hole (121) of the cross rod (12) and is provided with at least one nut (13) at the front end of the threaded column (111) in a threaded manner so as to fix the cross rod (12) at the driving end of the linear adjusting seat (11), or the nut (13) is unscrewed so as to adjust the position of the cross rod (12) left and right relative to the linear adjusting seat (11), the linear adjusting seat (11) is used for driving the cross rod (12) to move along the front-back direction, and the left end or the right end of the cross rod (12) forms a driving end of the two-dimensional adjusting seat (1).

3. The excitation slip ring online grinding device of the bulb through-flow type hydraulic generator according to claim 2, wherein the linear adjustment seat (11) comprises a base (112), a sliding seat (113), a screw rod (114), a support rod (115) and a rotation handle (116), the base (112) is horizontally arranged along a front-back direction, the sliding seat (113) is slidably installed at the upper end of the base (112), the sliding seat (113) can slide on the base (112) along the front-back direction, the screw rod (114) is horizontally arranged along the front-back direction and rotatably installed on the base (112), the sliding seat (113) is provided with a screw hole in threaded fit with the screw rod (114) along the front-back direction, the front end of the screw rod (114) extends into the screw hole and is in threaded connection with the sliding seat (113), the rotation handle (116) is installed at the end part of the rear end of the screw rod (114), the support rod (115) is horizontally arranged along the front-back direction, the rear end of the support rod is fixedly connected with the sliding seat (113), and the front end of the support rod (115) forms a driving end of the linear adjusting seat (11).

4. The excitation slip ring online grinding device of the bulb through-flow type hydraulic generator according to claim 3, wherein the rotating handle (116) is a hand wheel which is coaxially and fixedly installed at the rear end of the screw rod (114).

5. The excitation slip ring online grinding device of the bulb through-flow type hydraulic generator according to claim 3 or 4, wherein the damping member (2) comprises a cylinder (21), a rod (22) and a spring (23), the cylinder (21) is horizontally arranged along the front-back direction, the front end of the cylinder is open, the rear end of the cylinder (21) is connected with the driving end of the two-dimensional adjusting seat (1), the rod (22) is horizontally arranged along the front-back direction, the rear end of the rod extends into the cylinder (21) through the opening of the front end of the cylinder (21), the rear end of the rod (22) is provided with an outward flange, the opening of the front side of the cylinder (21) is provided with an inward flange, the spring (23) is arranged in the cylinder (21), the two ends of the spring are respectively abutted against the rear end of the rod (22) and the inner wall of the rear end of the cylinder (21), and the rod (22) overcomes the elasticity of the spring (23) to move backwards under the action of external force, or the external force is cancelled, the rod body (22) moves forwards under the action of the elastic force of the spring (23) to the outward flange at the rear end of the rod body (22) to be abutted against the inward flange at the front end of the cylinder body (21), and the front end of the rod body (22) forms the damping end of the damping piece (2).

6. The online grinding device for the excitation slip ring of the bulb through-flow type hydraulic generator according to claim 5, wherein the cross section of the rod body (22) is square, and an inner hole at an inward flanging at the front side of the cylinder body (21) is a square hole matched with the cross section of the rod body (22).