CN211045945U

CN211045945U - Rotary current collector

Info

Publication number: CN211045945U
Application number: CN201921505362.0U
Authority: CN
Inventors: 李剑钊; 庄钧杰
Original assignee: Jiangsu Kongtian Power Machinery Co ltd
Current assignee: Jiangsu Kongtian Power Machinery Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-07-17
Anticipated expiration: 2029-09-10

Abstract

The utility model relates to a collector technical field just discloses a rotation type collector. This rotation type collector, including the mounting box, the inside fixed mounting of mounting box has the support column, and the inside fixed mounting of support column has spacing post, and spacing post surface cover is equipped with the briquetting, and the inboard cover of briquetting is equipped with the brush, and there is the apron at the top of support column through pivot movable mounting, and the bottom fixed mounting of apron has the connecting block, and the inside movable mounting of connecting block has the stopper, and the lateral wall fixed mounting of stopper has the spring, and the inside movable mounting of support column has rotatory piece. This rotation type current collector along with the use of this current collector, when the change of brush is carried out to needs, upwards opens the apron, and when the apron upwards overturns, the stopper is along with the removal of apron, to the inside removal and the compression spring of connecting block, makes the connecting block deviate from the spacing hole that sets up in the support column, alright open the apron completely, takes off the back from the brush with the briquetting this moment again, alright carry out the change of brush.

Description

Rotary current collector

Technical Field

The utility model relates to a collector technical field specifically is a rotation type collector.

Background

The current collector is also called as an electrical lead, and is a device which is arranged between a resistance strain gauge on a rotating component and a measuring instrument and is used for transmitting a strain signal of the rotating component. The current collectors are classified into contact current collectors and non-contact current collectors, and the contact current collectors are commonly used: the pull-wire type current collector comprises a pull-wire type current collector, a mercury current collector and a carbon brush current collector, wherein the pull-wire type current collector transmits strain signals by utilizing sliding contact between a pull wire made of copper wires and a copper ring. The pull-wire type current collector is generally suitable for occasions with low axial speed and short-term use, and is simple to manufacture. The contact resistance is large, and the mercury current collector is generally only used for strain measurement of low-rotation-speed components such as blades of a water turbine or propellers of a helicopter, and the mercury current collector contains mercury, so that the mercury current collector is toxic, and the mercury current collector is not suitable to be used under general conditions. The using rotating speed of the carbon brush current collector can reach more than 3 ten thousand revolutions per minute.

When the existing carbon brush current collector is used, the running form of the current collector is a rotating movable ring and a fixed ring, so that the electric brush is easily abraded due to the influence of frictional resistance on the movable ring, the service life of the current collector is influenced, and the accurate transmission of current signals is also influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a rotation type current collector possesses advantages such as the little and easy change of brush of slip frictional force, thereby has solved because of the rotating ring frictional resistance leads to brush wearing and tearing to influence the current collector life-span and then the problem of the accurate transmission of influence current signal.

The utility model provides a technical scheme that its technical problem adopted is: a rotary current collector comprises a mounting box, a supporting column is fixedly mounted inside the mounting box, a limiting column is fixedly arranged inside the supporting column, a pressing block is sleeved on the outer surface of the limiting column, the inner side of the pressing block is sleeved with an electric brush, the top of the supporting column is movably provided with a cover plate through a rotating shaft, the bottom of the cover plate is fixedly provided with a connecting block, the inside of the connecting block is movably provided with a limiting block, the side wall of the limiting block is fixedly provided with a spring, the inside of the supporting column is movably provided with a rotating block, a metal ring is fixedly arranged at the top of the rotating block, a slide rail is fixedly arranged below the metal ring, the inside of the slide rail is movably provided with a ball, the right side of the rotating block is fixedly provided with a wire tube, the mounting box is characterized in that mounting rings are fixedly mounted on two sides of the mounting box, and limiting holes are formed in the side walls of the supporting columns.

Furthermore, the radian of the electric brush is matched with the metal ring, and a groove matched with the metal ring is formed in the electric brush.

Furthermore, the number of the support columns is two, and the two support columns are symmetrically arranged inside the mounting box.

Furthermore, the bottom of the metal ring is provided with a groove matched with the ball.

Furthermore, the through hole matched with the connecting block is formed in the side wall of the supporting column, and the limiting hole is installed in the through hole and corresponds to the position of the limiting block.

Furthermore, the slide rail is in the shape of an annular rail, and a groove matched with the ball is formed in the slide rail.

The utility model has the advantages that:

1. this rotation type current collector, the rotation through rotatory piece drives the becket and rotates in the inside of brush, and the slip through the becket carries out the transmission of signal, and when the becket rotated, through the ball at the inside slip of slide rail, reduce the friction that the becket rotated the production, can let brush and becket guarantee reliable contact completely under very low frictional force.

2. This rotation type current collector along with the use of this current collector, when the change of brush is carried out to needs, upwards opens the apron, and when the apron upwards overturns, the stopper is along with the removal of apron, to the inside removal and the compression spring of connecting block, makes the connecting block deviate from the spacing hole that sets up in the support column, alright open the apron completely, takes off the back from the brush with the briquetting this moment again, alright carry out the change of brush.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a front view of the internal structure of the present invention;

FIG. 2 is a top view of the internal structure of the present invention;

FIG. 3 is a schematic view showing the connection relationship between the support post and the electric brush according to the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Description of reference numerals: 1-mounting box, 2-supporting column, 3-limiting column, 4-pressing block, 5-electric brush, 6-cover plate, 7-connecting block, 8-limiting block, 9-spring, 10-rotating block, 11-metal ring, 12-sliding rail, 13-rolling ball, 14-line pipe, 15-mounting ring and 16-limiting hole.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, a rotary current collector includes a mounting box 1, two support columns 2 are fixedly mounted inside the mounting box 1, the two support columns 2 are symmetrically disposed inside the mounting box 1, a limit column 3 is fixedly mounted inside the support columns 2, a press block 4 is sleeved on an outer surface of the limit column 3, two electric brushes 5 are sleeved on inner sides of the press block 4, the two press blocks 4 are respectively disposed on upper and lower sides of the electric brush 5, a contact area between the press block 4 and the electric brush 5 is not less than 60% of a surface area of the press block 4, a contact area with the electric brush 5 is not less than 40% of the surface area of the electric brush 5, a radian of the electric brush 5 is matched with a metal ring 11, a groove adapted to the metal ring 11 is formed inside the electric brush 5, a part of the area of the metal ring 11 is disposed inside the electric brush 5, the area inside the electric brush 5 is not less than 40% of the, the electric brush 5 is made of silver graphite material, the metal ring 11 is made of copper silver material, the top of the support column 2 is movably provided with a cover plate 6 through a rotating shaft, the top of the support column 2 is provided with a groove matched with the cover plate 6, the cover plate 6 can turn over at the top of the support column 2 through the rotating shaft by taking the rotating shaft as a fulcrum, the bottom of the cover plate 6 is fixedly provided with a connecting block 7, the inside of the connecting block 7 is movably provided with a limit block 8, the side wall of the limit block 8 is fixedly provided with a spring 9, when the electric brush 5 needs to be replaced, the cover plate 6 is opened upwards, when the cover plate 6 turns upwards, the limit block 8 moves towards the inside of the connecting block 7 along with the movement of the cover plate 6 and compresses the spring 9, so that the connecting block 7 is separated from a limit hole 16 arranged in the support column 2, the cover plate 6 can be, the inner part of the supporting column 2 is movably provided with a rotating block 10, the top part of the rotating block 10 is fixedly provided with a metal ring 11, the inner wall of the metal ring 11 is fixedly connected with the side wall of the rotating block 10 through a straight rod between the metal ring 11 and the rotating block 10, the bottom part of the metal ring 11 is provided with a groove matched with a ball 13, a sliding rail 12 is fixedly arranged below the metal ring 11, the sliding rail 12 is in an annular track shape and is internally provided with a groove matched with the ball 13, the sliding rail 12 is movably provided with a ball 13, the metal ring 11 is driven to rotate in the electric brush 5 through the rotation of the rotating block 10, the signal is transmitted through the sliding of the metal ring 11, the friction generated by the rotation of the metal ring 11 is reduced through the sliding of the ball 13 in the sliding rail 12 when the metal ring 11 rotates, the right side of the rotating block 10 is fixedly provided with a wire tube 14, and 14-, meanwhile, a round hole is formed in the top of the supporting column 2, a through hole communicated with the line pipe 14 is formed in the mounting box 1, mounting rings 15 are fixedly mounted on two sides of the mounting box 1, the current collector is fixedly mounted to the corresponding position of machinery through the mounting rings 15, a limiting hole 16 is formed in the side wall of the supporting column 2, a through hole matched with the connecting block 7 is formed in the side wall of the supporting column 2, and the limiting hole 16 is mounted in the through hole and corresponds to the position of the limiting block 8.

When the collector is used, after the collector is fixedly arranged on a corresponding position of a machine through the mounting ring 15, the metal ring 11 is driven to rotate in the brush 5 through the rotation of the rotating block 10, part of the area of the metal ring 11 is positioned in the brush 5, the area positioned in the brush 5 is not less than 40% of the surface area of the metal ring, the signal transmission is carried out through the sliding of the metal ring 11, the friction generated by the rotation of the metal ring 11 is reduced through the sliding of the balls 13 in the sliding rail 12 while the metal ring 11 rotates, along with the use of the collector, when the brush 5 needs to be replaced, the contact area of the pressing block 4 and the brush 5 is not less than 60% of the surface area of the pressing block 4, the contact area of the pressing block 4 and the brush 5 is not less than 40% of the surface area of the brush 5, the cover plate 6 is opened upwards, when the cover plate 6 is turned upwards, the limiting block, move to the inside of connecting block 7 and compression spring 9 makes connecting block 7 deviate from the spacing hole 16 that sets up in support column 2, alright open the apron 6 completely, and the back is taken off from brush 5 to briquetting 4 again this moment, alright change of brush 5.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rotary current collector comprising a mounting box (1), characterized in that: the mounting box comprises a mounting box body (1), a support column (2) is fixedly mounted inside the mounting box body (1), a limiting column (3) is fixedly mounted inside the support column (2), a press block (4) is sleeved on the outer surface of the limiting column (3), an electric brush (5) is sleeved on the inner side of the press block (4), an cover plate (6) is mounted at the top of the support column (2) through a rotating shaft, a connecting block (7) is fixedly mounted at the bottom of the cover plate (6), a limit block (8) is movably mounted inside the connecting block (7), a spring (9) is fixedly mounted on the side wall of the limit block (8), a rotating block (10) is movably mounted inside the support column (2), a metal ring (11) is fixedly mounted at the top of the rotating block (10), a slide rail (12) is fixedly mounted below the metal ring (11), and a ball (, the right side fixed mounting of rotatory piece (10) has spool (14), the both sides fixed mounting of mounting box (1) has collar (15), spacing hole (16) have been seted up to the inside of support column (2) lateral wall.

2. A rotary current collector according to claim 1, wherein: the radian of the electric brush (5) is matched with the metal ring (11) and a groove matched with the metal ring (11) is formed in the electric brush.

3. A rotary current collector according to claim 1, wherein: the number of the supporting columns (2) is two, and the two supporting columns (2) are symmetrically arranged inside the mounting box (1).

4. A rotary current collector according to claim 1, wherein: the bottom of the metal ring (11) is provided with a groove matched with the ball (13).

5. A rotary current collector according to claim 1, wherein: the inside of support column (2) lateral wall is seted up the through-hole with connecting block (7) adaptation, spacing hole (16) are installed in the inside of above-mentioned through-hole and are corresponded with the position of stopper (8).

6. A rotary current collector according to claim 1, wherein: the slide rail (12) is in the shape of an annular rail, and a groove matched with the ball (13) is formed in the slide rail.