CN215579459U

CN215579459U - Constant pressure spring for carbon brush assembly

Info

Publication number: CN215579459U
Application number: CN202122126773.2U
Authority: CN
Inventors: 宣文进; 杨宇轩
Original assignee: Suzhou Yuxuan Spring Co ltd
Current assignee: Suzhou Yuxuan Spring Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-01-18
Anticipated expiration: 2031-09-06

Abstract

The utility model belongs to the technical field of motors and generators, and particularly discloses a constant-pressure spring for a carbon brush assembly, which comprises a spring body, wherein the spring body comprises a spring bottom block, a coil spring and a fixing assembly; the spring coiling device comprises a spring bottom block, a spring coiling mechanism and a spring coiling mechanism, wherein the spring coiling mechanism is arranged at the top of one end of the spring bottom block through a fixing assembly, the fixing assembly comprises an inverted L-shaped fixing plate, the bottom end of a vertical plate of the L-shaped fixing plate is fixedly connected with the top of the spring bottom block, the top end of the L-shaped fixing plate is fixedly connected with an installation frame, a supporting rod is obliquely arranged in the installation frame, one end, close to the spring coiling mechanism, of the supporting rod is fixedly connected with a first flat plate, and the other end of the supporting rod is fixedly connected with a second flat plate; the bottom of the first flat plate is movably connected with a positioning rod, and the bottom end of the positioning rod penetrates through the L-shaped fixing plate and is clamped with a jack arranged on the outer end head of the coil spring and a stabilizing hole arranged at the top of the spring bottom block; an expansion piece is arranged on one side of the L-shaped fixing plate, which is far away from the coil spring, and the top end of the expansion piece is movably connected with the bottom of the second flat plate; the utility model has simple operation and is convenient to replace the coil spring.

Description

Constant pressure spring for carbon brush assembly

Technical Field

The utility model relates to the technical field of motors and generators, in particular to a constant-pressure spring for a carbon brush assembly.

Background

In the rotating process of the motor unit and the generator unit, the collector ring always moves at a high speed with the carbon brush assembly, the collector ring is contacted with the front end of the carbon brush in the carbon brush assembly, friction is inevitably generated between the collector ring and the carbon brush assembly, the friction inevitably causes abrasion of the carbon brush, and the temperature of the carbon brush is increased. The length of the carbon brush is gradually shortened due to abrasion caused by friction between the collecting ring and the front end of the carbon brush, and in order to keep the contact characteristic required by the process between the carbon brush and the collecting ring, the collecting ring and the carbon brush are kept in close contact so that current can pass through, a pushing force is required to continuously act on the carbon brush, and the carbon brush is kept in good contact with the collecting ring at first to form a current channel; secondly, when the carbon brush is shortened due to abrasion, a force is required to push the carbon brush so as to dynamically move the carbon brush and maintain good contact with the collector ring.

Like the utility model discloses a constant voltage spring of authorizing publication No. CN205231437U, it can provide the effort and make and keep good contact between carbon brush and the collecting ring, forms the passageway of electric current, makes motor unit, generator unit rotate well, but need dismantle with the help of other instruments when changing old wind spring, complex operation, inconvenient change.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a constant pressure spring for a carbon brush assembly, so as to solve the problems of the related art.

In order to achieve the purpose, the utility model provides the following technical scheme: a constant pressure spring for a carbon brush assembly comprises a spring body, wherein the spring body comprises a spring bottom block, a coil spring and a fixing assembly; the spring coiling device comprises a spring bottom block, a spring coiling mechanism and a fixing assembly, wherein the spring coiling mechanism is fixedly arranged at the top of one end of the spring bottom block through the fixing assembly, the fixing assembly comprises an inverted L-shaped fixing plate, the bottom end of a vertical plate of the L-shaped fixing plate is fixedly connected with the top of the spring bottom block, the top end of the L-shaped fixing plate is fixedly connected with an installation frame, a supporting rod is obliquely arranged in the installation frame, one end, close to the spring coiling mechanism, of the supporting rod is fixedly connected with a first flat plate, and the other end of the supporting rod is fixedly connected with a second flat plate; the bottom of the first flat plate is movably connected with a positioning rod, and the bottom end of the positioning rod penetrates through the L-shaped fixing plate and is clamped with an insertion hole formed in the outer end head of the coil spring and a stabilizing hole formed in the top of the spring bottom block; and one side of the L-shaped fixing plate, which is far away from the coil spring, is provided with a telescopic piece, and the top end of the telescopic piece is movably connected with the bottom of the second flat plate.

Preferably, a transverse plate of the L-shaped fixing plate is provided with a through groove for the positioning rod to penetrate out, and the positioning rod is movably connected with the through groove.

Preferably, the extensible member includes square fixed cylinder, and the bottom of square fixed cylinder and the top fixed connection of spring bottom piece are equipped with compression spring in the inside of square fixed cylinder, and compression spring's top rigid coupling has the fly leaf, and the top of fly leaf is equipped with the slider, and the top of slider is connected with the ejector pin through the pivot rotation, and the top of ejector pin is connected through the bottom rotation of pivot and second flat board.

Preferably, the two sides of the movable plate are slidably connected with the inner side wall of the square fixed cylinder.

Preferably, the top of fly leaf has seted up the spout, and the spacing groove has all been seted up to the side lateral wall around the spout.

Preferably, the bottom and the spout sliding connection of slider, the equal rigid coupling in front and back side of slider has spacing curb plate, and spacing curb plate and spacing groove sliding connection.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the coil spring is arranged on the spring bottom block through the fixing assembly, when the coil spring needs to be replaced, the coil spring is not required to be detached by other tools, and only the second flat plate needs to be pressed, so that the first flat plate is upwards tilted, and the positioning rod can be pulled out from the stable hole and the jack, so that the installation and fixation of the coil spring can be released, the operation is simple, and the replacement of the coil spring is convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the fixing assembly of the present invention;

FIG. 3 is a schematic structural diagram of a movable plate according to the present invention;

fig. 4 is a schematic structural diagram of the slider of the present invention.

In the figure: 1. a spring body; 11. a spring bottom block; 111. a stabilizing hole; 12. a coil spring; 121. a jack; 13. a fixing assembly; 130. an L-shaped fixing plate; 131. a mounting frame; 132. a strut; 133. a first plate; 134. a second plate; 135. positioning a rod; 136. a telescoping member; 1361. a square fixed cylinder; 1362. a compression spring; 1363. a movable plate; 1364. a slider; 1365. a top rod; 1366. a chute; 1367. a limiting groove; 1368. a limiting side plate; 137. a through groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: a constant pressure spring for a carbon brush assembly comprises a spring body 1, wherein the spring body 1 comprises a spring bottom block 11, a coil spring 12 and a fixing assembly 13; the coil spring 12 is fixedly installed at the top of one end of the spring bottom block 11 through a fixing component 13, the fixing component 13 comprises an inverted L-shaped fixing plate 130, the bottom end of a vertical plate of the L-shaped fixing plate 130 is fixedly connected with the top of the spring bottom block 11, an installing frame 131 is fixedly connected to the top end of the L-shaped fixing plate 130, a supporting rod 132 is obliquely arranged in the installing frame 131, the supporting rod 132 is rotatably connected with the installing frame 131 through a rotating shaft, a first flat plate 133 is fixedly connected to one end, close to the coil spring 12, of the supporting rod 132, and a second flat plate 134 is fixedly connected to the other end of the supporting rod 132; the bottom of the first plate 133 is movably connected with a positioning rod 135 through a rotating shaft, and the bottom end of the positioning rod 135 penetrates through the L-shaped fixing plate 130 and is clamped with a jack 121 formed in the outer end of the coil spring 12 and a stabilizing hole 111 formed in the top of the spring bottom block 11; an expansion piece 136 is arranged on one side of the L-shaped fixing plate 130 away from the coil spring 12, and the top end of the expansion piece 136 is movably connected with the bottom of the second plate 134 through a rotating shaft.

Furthermore, a transverse plate of the L-shaped fixing plate 130 is provided with a through groove 137 through which the positioning rod 135 penetrates out, and the positioning rod 135 is movably connected with the through groove 137, so that the positioning rod 135 can move up, down, left and right in the through groove 137.

Further, the telescopic part 136 includes a square fixed cylinder 1361, the bottom end of the square fixed cylinder 1361 is fixedly connected to the top of the spring bottom block 11, a compression spring 1362 is disposed inside the square fixed cylinder 1361, the top end of the compression spring 1362 is fixedly connected to a movable plate 1363, the top end of the movable plate 1363 is provided with a slider 1364, the top end of the slider 1364 is rotatably connected to a top rod 1365 through a rotating shaft, and the top end of the top rod 1365 is rotatably connected to the bottom of the second flat plate 134 through a rotating shaft.

Further, two sides of the movable plate 1363 are slidably connected to an inner sidewall of the square fixing cylinder 1361.

Further, a sliding groove 1366 is formed in the top of the movable plate 1363, and limiting grooves 1367 are formed in the side walls of the front side and the rear side of the sliding groove 1366.

Further, the bottom of the sliding block 1364 is connected with the sliding groove 1366 in a sliding manner, the front side and the rear side of the sliding block 1364 are fixedly connected with limit side plates 1368, and the limit side plates 1368 are connected with limit grooves 1367 in a sliding manner; when the second plate 134 is pressed, the top bar 1365 tilts, so that the slider 1364 at the bottom moves in the sliding groove 1366, and the sliding connection between the position-limiting side plate 1368 and the position-limiting groove 1367 has a guiding function on one hand and can limit the slider 1364 to be separated from the sliding groove 1366 on the other hand.

The working principle is as follows: when the coil spring 12 is installed, the second flat plate 134 is pressed, the first flat plate 133 is driven to tilt upwards through the supporting rod 132, the positioning rod 135 is further pulled out of the through groove 137, then the outer end of the coil spring 12 is placed at the bottom of the transverse plate of the L-shaped fixing plate 130, the inserting hole 121 corresponds to the stabilizing hole 111, then the pressing force of the second flat plate 134 is released, under the elastic force action of the compression spring 1362, the ejector rod 1365 pushes the second flat plate 134 to move upwards, the first flat plate 133 moves downwards, the positioning rod 135 penetrates through the through groove 137 and then is sequentially clamped with the inserting hole 121 and the stabilizing hole 111, and the installation of the coil spring 12 can be completed, so that the operation is simple, and no other installation tools are needed;

when dismantling and replacing the coil spring 12, the coil spring is not required to be dismantled by other tools, only the second flat plate 134 needs to be pressed, the second flat plate 134 enables the first flat plate 133 to tilt upwards through the supporting rod 132, and then the positioning rod 135 can be pulled out from the stable hole 111 and the jack 121, so that the coil spring 12 can be removed from being fixedly installed, the operation is simple, and the coil spring 12 is convenient to replace.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The constant-pressure spring for the carbon brush assembly is characterized by comprising a spring body (1), wherein the spring body (1) comprises a spring bottom block (11), a coil spring (12) and a fixing assembly (13); the spring coiling mechanism is characterized in that the coil spring (12) is fixedly installed at the top of one end of the spring bottom block (11) through a fixing component (13), the fixing component (13) comprises an inverted L-shaped fixing plate (130), the bottom end of a vertical plate of the L-shaped fixing plate (130) is fixedly connected with the top of the spring bottom block (11), an installation frame (131) is fixedly connected to the top end of the L-shaped fixing plate (130), a supporting rod (132) is obliquely arranged in the installation frame (131), a first flat plate (133) is fixedly connected to one end, close to the coil spring (12), of the supporting rod (132), and a second flat plate (134) is fixedly connected to the other end of the supporting rod; the bottom of the first flat plate (133) is movably connected with a positioning rod (135), and the bottom end of the positioning rod (135) penetrates through the L-shaped fixing plate (130) and is clamped with an insertion hole (121) formed in the outer end head of the coil spring (12) and a stabilizing hole (111) formed in the top of the spring bottom block (11); an expansion piece (136) is arranged on one side, away from the coil spring (12), of the L-shaped fixing plate (130), and the top end of the expansion piece (136) is movably connected with the bottom of the second flat plate (134).

2. The constant pressure spring for a carbon brush assembly according to claim 1, wherein: a transverse plate of the L-shaped fixing plate (130) is provided with a through groove (137) for the positioning rod (135) to penetrate out, and the positioning rod (135) is movably connected with the through groove (137).

3. The constant pressure spring for a carbon brush assembly according to claim 1, wherein: the telescopic piece (136) comprises a square fixed cylinder (1361), the bottom end of the square fixed cylinder (1361) is fixedly connected with the top of the spring bottom block (11), a compression spring (1362) is arranged inside the square fixed cylinder (1361), the top end of the compression spring (1362) is fixedly connected with a movable plate (1363), the top end of the movable plate (1363) is provided with a sliding block (1364), the top end of the sliding block (1364) is rotatably connected with a push rod (1365) through a rotating shaft, and the top end of the push rod (1365) is rotatably connected with the bottom of the second flat plate (134) through a rotating shaft.

4. The constant pressure spring for a carbon brush assembly according to claim 3, wherein: two sides of the movable plate (1363) are connected with the inner side wall of the square fixed cylinder (1361) in a sliding manner.

5. The constant pressure spring for a carbon brush assembly according to claim 3, wherein: the top of the movable plate (1363) is provided with a sliding groove (1366), and the side walls of the front side and the rear side of the sliding groove (1366) are provided with limit grooves (1367).

6. The constant pressure spring for a carbon brush assembly according to claim 3, wherein: the bottom of the sliding block (1364) is in sliding connection with the sliding groove (1366), the front side and the rear side of the sliding block (1364) are fixedly connected with limit side plates (1368), and the limit side plates (1368) are in sliding connection with the limit groove (1367).