A fast installation and correction tool for large DC motor brush holder

Abstract

The present invention relates to the field of large motor installation and maintenance, and specifically to a large DC motor brush holder quick installation and correction tool, comprising a clamping part for supporting the brush holder and a positioning part for positioning the angle and position of the brush holder, wherein the positioning part is clamped in the middle of the clamping part. The large DC motor brush holder quick installation and correction tool of the present invention limits the installation of carbon brushes by adjusting the vertical pole, and after the installation is completed, there is no need to manually measure the length of the carbon brush extending out of the brush holder one by one, which can greatly increase the installation efficiency of the carbon brush adjustment and effectively reduce the labor intensity of manual installation of the carbon brush; by setting the vertical pole, the adjustment cross bar and the adjustment vertical pole can be driven to rotate synchronously, and the installation angle of the brush rod and the brush holder can be observed when installing the brush rod and the brush holder, so that the angles are evenly divided when multiple groups of brush rods are installed; the carbon brushes on the brush holder removed from the motor can also be detected to detect whether the lengths extending out of the brush holder are consistent, which can effectively speed up the efficiency of carbon brush detection and reduce the labor intensity of the staff.

Description

Technical Field

[0001] The invention belongs to the field of large motor installation and maintenance, and in particular relates to a large DC motor brush holder quick installation and correction tool. Background Art

[0002] Large DC motors are devices that can convert DC electrical energy into mechanical energy or mechanical energy into DC electrical energy. As these motors can provide high torque and high speed ratio, they are suitable for applications that require strong power output and are widely used in the industrial field, including but not limited to steel rolling equipment, electric buses, electric mining vehicles, etc.

[0003] In the prior art, due to the complex structure of large DC motors, maintenance work is relatively more, especially when installing or positioning the carbon brushes of the motor, the carbon brushes need to be installed to the brush holder. After the installation is completed, the length of the carbon brushes extending out of the brush holder needs to be measured one by one and manually adjusted. The installation or adjustment efficiency is low and the manual labor intensity is high. Therefore, how to overcome the above-mentioned technical problems and defects has become a key problem that needs to be solved. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects described in the background technology, thereby realizing a large DC motor brush holder quick installation and correction tooling, when installing the carbon brush, the carbon brush extending out of the brush holder length is directly positioned, thereby speeding up the installation or adjustment efficiency and reducing manual labor intensity.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution of the present invention is:

[0006] A fast installation and correction tool for a large DC motor brush holder comprises a clamping part for supporting the brush holder and a positioning part for positioning the angle and position of the brush holder, wherein the positioning part is clamped in the middle of the clamping part.

[0007] Specifically, the clamping portion is a three-jaw chuck, and the clamping jaws of the three-jaw chuck are stepped jaws;

[0008] In addition, the three-jaw chuck is a chuck with an automatic centering structure.

[0009] Specifically, the positioning part includes a positioning sleeve, a column, an adjusting cross bar and an adjusting vertical rod. The positioning sleeve is clamped in the middle of the clamping part, the bottom end of the column is rotatably inserted into the inside of the positioning sleeve, the adjusting cross bar is slidably inserted into the top end of the column, and the adjusting vertical rod is slidably inserted into the end of the adjusting cross bar.

[0010] Furthermore, a bearing is arranged inside the positioning sleeve, and the positioning sleeve is rotatably sleeved on the bottom end of the column through the bearing.

[0011] In the above-mentioned large DC motor brush holder quick installation and correction tool, a dial is fixedly arranged on the top of the positioning sleeve, a scale pointer is arranged on the column, and the scale pointer is fixedly sleeved on the column above the dial.

[0012] In the above-mentioned large DC motor brush holder quick installation and correction tool, the adjustment cross bar is engraved with scales.

[0013] In the above-mentioned large DC motor brush holder quick installation and correction tooling, the adjusting cross bar is a round bar with a horizontal plane on the top, and the top of the column is provided with a sliding hole that matches the specifications of the adjusting cross bar, and the adjusting cross bar is inserted into the sliding hole at the top of the column.

[0014] Furthermore, the adjusting vertical rod is a round rod with a vertical plane on the side, and a sliding sleeve is vertically arranged at the end of the adjusting cross bar. The sliding sleeve is adapted to the specification of the adjusting vertical rod, and the adjusting vertical rod is slidably inserted in the sliding sleeve.

[0015] In the above-mentioned large DC motor brush holder quick installation and correction tool, the column is an electric push rod or a hydraulic lifting rod.

[0016] Furthermore, a displacement adjustment mechanism is provided at the adjusting cross bar and the column below the adjusting cross bar, and the displacement adjustment mechanism includes an adjusting motor, a transmission member, a threaded sleeve and a threaded rod. The adjusting motor is arranged on the side of the column below the adjusting cross bar, and the power output part of the adjusting motor is connected to the threaded sleeve through the transmission member. The threaded sleeve is threadedly connected to the threaded rod and is also arranged inside the top end of the column through the transmission member. Both ends of the threaded rod are rotatably connected to the adjusting cross bar through bearings. An installation groove for installing the threaded rod is opened at the bottom of the adjusting cross bar, and the threaded rod is arranged in the installation groove.

[0017] At the same time, a tightening bolt is also provided on the threaded sleeve, and the tightening bolt is threadedly connected and penetrates the threaded sleeve and then abuts against the threaded rod. In addition, a rectangular through hole is opened on the adjusting cross bar corresponding to the tightening bolt;

[0018] In addition, a winding wheel is arranged at one end of the threaded rod close to the adjusting rod, a steel wire rope is wound on the winding wheel, the other end of the steel wire rope is connected to the bottom end of the adjusting rod, and a sliding groove for the adjusting rod to pass through is opened at the end of the threaded rod corresponding to the adjusting rod;

[0019] Furthermore, a positioning bolt is hingedly provided at the end of the adjusting cross bar at the other end of the threaded rod, a positioning groove is provided at the end of the threaded rod corresponding to the positioning bolt, and a limiting groove is provided below the adjusting cross bar corresponding to the positioning groove. When the positioning bolt is located in the positioning groove and the limiting groove, the threaded rod is positioned, and a butterfly nut is provided on the positioning bolt;

[0020] In the above-mentioned large DC motor brush holder quick installation and correction tooling, the transmission part includes a pulley group and a bearing frame, the adjustment motor is connected to the threaded sleeve through the pulley group, the bearing frame is symmetrically arranged on the threaded sleeve through bearings, and at the same time, the threaded sleeve is mounted on the inner wall of the top end of the column through the bearing frame.

[0021] In addition, the positioning sleeve, the top of the column and the end of the adjusting cross bar are all provided with a retaining handwheel. The retaining handwheel at the positioning sleeve is threadedly connected and passes through the positioning sleeve and then abuts against the bottom side of the column. The retaining handwheel at the top of the column is threadedly connected and passes through the retaining handwheel and then abuts against the adjusting cross bar.

[0022] At the same time, the retaining hand wheel at the end of the adjusting cross bar is threadedly connected and sequentially passes through the end of the adjusting cross bar and the sliding sleeve and then abuts against the adjusting vertical rod.

[0023] Compared with the prior art, the large DC motor brush holder quick installation and correction tool of the present invention has at least the following beneficial effects:

[0024] 1. The large DC motor brush holder quick installation and correction tool of the present invention can adjust the gap between the adjustment pole and the brush holder when installing the carbon brush on the brush holder, thereby limiting the length of the carbon brush extending out of the brush holder. The installation of the carbon brush is limited by the adjustment pole. After the installation is completed, there is no need to manually measure the length of the carbon brush extending out of the brush holder one by one, which can greatly increase the installation efficiency of the adjustment carbon brush and effectively reduce the labor intensity of manually installing the carbon brush.

[0025] 2. By setting a column, and the column can rotate in the positioning sleeve, the adjustment cross bar and the adjustment column can be driven to rotate synchronously, so that the installation angle of the brush rod and brush holder can be observed when installing them, which is convenient for averaging the angles when installing multiple sets of brush rods.

[0026] 3. The carbon brushes on the brush holder removed from the motor can also be tested by rotating the column, driving the adjusting crossbar, and adjusting the vertical rod to detect whether the length of the brush holder extending out is consistent, which can effectively speed up the efficiency of carbon brush testing and reduce the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the large DC motor brush holder quick installation and positioning of the carbon brush holder by the correction tool of the present invention;

[0028] Figure 2 It is a three-dimensional structural schematic diagram of a large DC motor brush holder quick installation and correction tool cover of the present invention;

[0029] Figure 3 yes Figure 2 A magnified schematic diagram of the internal structure at center A;

[0030] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the local structure of the three-jaw chuck of the large DC motor brush holder quick installation and correction tooling of the present invention;

[0031] Figure 5 It is a three-dimensional structure enlarged schematic diagram of the displacement adjustment mechanism of the large DC motor brush holder quick installation and correction tooling of the present invention;

[0032] Figure 6 The invention discloses a three-dimensional cross-sectional schematic diagram of the internal structure of a large DC motor brush holder quick installation, a correction tool adjusting crossbar, a column and an adjusting vertical rod.

[0033] In the figure:

[0034] 1-Clamping part:

[0035] 101-three-jaw chuck;

[0036] 102-claw, 121-sliding seat, 122-bevel gear plate, 123-bevel gear, 124-slideway, 125-volute tooth, 126-limiting block;

[0037] 2- Positioning part:

[0038] 201-positioning sleeve, 211-bearing, 212-dial;

[0039] 202-column, 221-scale pointer;

[0040] 203-adjustment bar, 231-scale;

[0041] 204-adjusting pole, 241-sliding sleeve;

[0042] 205-displacement adjustment mechanism, 251-adjusting motor, 252-transmission part, 253-threaded sleeve, 254-threaded rod,

[0043] 255-installation slot, 256-tightening bolt, 257-rectangular through hole, 258-reel, 259-wire rope,

[0044] 260-positioning bolt, 261-positioning slot, 262-limiting slot, 263-butterfly nut;

[0045] 3-Brush holder: 301-brush rod, 302-brush handle. DETAILED DESCRIPTION

[0046] The following is a more detailed description of the large DC motor brush holder quick installation and correction tooling of the present invention in conjunction with the accompanying drawings and through specific implementation methods.

[0047] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0048] Example 1

[0049] This embodiment discloses a large DC motor brush holder quick installation and correction tool, which directly locates the extension length of the carbon brush when installing the brush holder, thereby speeding up the installation or adjustment efficiency and reducing the labor intensity. Figure 1 , including a clamping part 1 for supporting a brush holder 3 and a positioning part 2 for positioning the angle and position of the brush holder. The positioning part 2 is separately clamped in the middle of the clamping part 1. The clamping part 1 can clamp and fix the positioning part 2 while supporting the brush holder. The positioning part is used to position the brush rod 301 and the brush holder 302 of the brush holder 3 at an angle, and at the same time, to position the length of the carbon brush extending out of the brush holder.

[0050] Specifically, to achieve the clamping of the positioning portion 2, see Figure 1 In this embodiment, the clamping portion 1 is a three-jaw chuck 101. The three-jaw chuck 101 can be used to clamp the positioning portion 2 at its middle position, thereby completing the positioning installation of the positioning portion 2.

[0051] Meanwhile, the clamping jaws 102 of the three-jaw chuck 101 are stepped clamping jaws 102. By providing stepped clamping jaws, brush holders 3 of different diameters can be set up, so that it is applicable to brush holders 3 of various specifications.

[0052] To position the carbon brushes during installation, refer to Figure 2 The positioning part 2 includes a positioning sleeve 201, a column 202, an adjustment crossbar 203 and an adjustment vertical rod 204. The positioning sleeve 201 is clamped and arranged in the middle of the clamping part 1, the bottom end of the column 202 is rotatably inserted into the inside of the positioning sleeve 201, the adjustment crossbar 203 is slidably inserted into the top end of the column 202, and the adjustment vertical rod 204 is slidably inserted into the end of the adjustment crossbar 203.

[0053] Through the above structure, after the positioning sleeve 201 is installed in the middle of the three-jaw chuck 101, the column 202 can be rotated to adjust the angle of the adjusting cross bar 203. The adjusting cross bar 203 drives the adjusting vertical rod 204 to move synchronously, thereby adjusting the position of the adjusting vertical rod 204. After the adjusting vertical rod 204 is adjusted to the corresponding brush holder 302, the position of the adjusting cross bar 203 is slid to adjust the distance between the adjusting vertical rod 204 and the corresponding brush holder 302. The length of the carbon brush extending out of the brush holder 302 is controlled by adjusting the vertical rod 204, thereby realizing the positioning of the carbon brush when it is installed or corrected.

[0054] In addition, the height of the vertical rod can be adjusted by sliding up and down, so as to limit the position of the carbon brush when the brush holder 302 at different heights is installed.

[0055] To realize that the column 202 can rotate inside the positioning sleeve 201, see Figure 3 A bearing 211 is disposed inside the positioning sleeve 201 , and the positioning sleeve 201 is rotatably sleeved on the bottom end of the column 202 through the bearing 211 .

[0056] The bearing 211 can be provided to reduce the friction force when the column 202 rotates, making the column 202 rotate more smoothly.

[0057] To position the brush bar angle, see Figure 3 A dial 212 is fixedly arranged on the top of the positioning sleeve 201 , and a scale pointer 221 is arranged on the column 202 . The scale pointer 221 is fixedly sleeved on the column 202 above the dial 212 .

[0058] By installing a scale pointer 221 on the column, in conjunction with the scale plate 212, it is convenient to read and measure the angle of the brush rod corresponding to the adjustment column 204 when the column 202 rotates.

[0059] In addition, in this embodiment, a scale 231 is engraved on the adjusting cross bar 203 to facilitate reading the distance between the brush holder 302 and the column 202 .

[0060] In addition, it should be noted that in this embodiment, the number of jaws on the three-jaw chuck 101 of the clamping part 1 is not fixed and unchanging, and a chuck with other numbers of jaws can be selected or additional jaws can be installed as needed.

[0061] Example 2

[0062] The same points as the above embodiment will not be repeated here, but the difference is that:

[0063] See also Figure 2The adjusting cross bar 203 is a round bar with a horizontal plane on the top, and the top of the column 202 is provided with a sliding hole that matches the specification of the adjusting cross bar 203 , and the adjusting cross bar 203 is inserted into the sliding hole at the top of the column 202 .

[0064] By providing a horizontal plane on the top of the adjusting crossbar and a sliding hole adapted thereto on the top of the vertical column, the adjusting crossbar 203 can be prevented from rotating when sliding, thereby ensuring the stability of the adjusting vertical column 204.

[0065] Meanwhile, the adjusting vertical rod 204 is a round rod with a vertical plane on the side, and a sliding sleeve 241 is vertically arranged at the end of the adjusting cross bar 203. The sliding sleeve 241 is adapted to the specification of the adjusting vertical rod 204, and the adjusting vertical rod 204 is slidably inserted in the sliding sleeve 241.

[0066] By providing a vertical plane on the side of the adjusting upright pole, the adjusting upright pole 204 can slide up and down while being prevented from rotating, thereby further ensuring the stability of the adjusting upright pole 204 .

[0067] Example 3

[0068] The same points as the above embodiments or their combinations are not described in detail, except that:

[0069] In this embodiment, the column 202 is an electric push rod or a hydraulic lift rod. By providing the electric push rod or the hydraulic lift rod, the height adjustment range of the adjustment column 204 can be increased, so that it is suitable for the installation of brushes of brush holders with more specifications.

[0070] Example 4

[0071] The same points as the above embodiments or their combinations are not described in detail, except that:

[0072] In this embodiment, the positioning sleeve 201, the top of the column 202 and the end of the adjusting cross bar 203 are all provided with retaining hand wheels (not shown in the figure).

[0073] Specifically, the retaining hand wheel at the positioning sleeve 201 is threadedly connected and penetrates the positioning sleeve 201 and then abuts against the bottom side of the column 202 .

[0074] At the same time, the retaining hand wheel at the top of the column 202 is threadedly connected and passes through the retaining hand wheel and then abuts the adjusting cross bar 203. The retaining hand wheel at the end of the adjusting cross bar 203 is threadedly connected and passes through the end of the adjusting cross bar 203 and the sliding sleeve 241 in sequence and then abuts the adjusting vertical rod 204.

[0075] By providing a retaining hand wheel at the positioning sleeve 201, the angle position of the column 202 can be positioned, thereby preventing the angle position of the adjustment cross bar 203 and the adjustment vertical bar 204 from changing when installing the carbon brush.

[0076] At the same time, by installing a retaining hand wheel on the top of the column 202, the position of the adjustment cross bar 203 can be positioned, thereby preventing the lateral position of the adjustment cross bar and the adjustment column from changing when installing the carbon brush.

[0077] By providing a retaining hand wheel at the end of the adjusting cross bar 203 , the height position of the adjusting vertical rod 204 can be positioned, thereby preventing the height position of the adjusting vertical rod 204 from changing.

[0078] Example 5

[0079] The same points as the above embodiments or their combinations are not described in detail, except that:

[0080] To achieve automatic centering when the chuck fixes the positioning sleeve 201, see Figure 4 The three-jaw chuck is a chuck with an automatic centering structure.

[0081] In this embodiment, the chuck realizes automatic centering when fixing the positioning sleeve through its own automatic centering structure. The automatic centering structure described in this embodiment includes a sliding seat 121, a bevel gear disc 122 and a bevel gear 123, wherein the bevel gear disc 122 is rotatably arranged inside the sliding seat 121, the bevel gear 123 is arranged at the bottom of the bevel gear disc 122 and meshes with the bevel gear disc 122, the claw 102 is arranged on the sliding seat 121, a slideway 124 is provided on the sliding seat 121, the side of the claw 102 is slidably arranged on the sliding seat 121, the top of the bevel gear disc 122 is provided with a volute tooth 125, the bottom of the claw 102 is provided with a stopper 126 adapted to the volute tooth 125, and the bottom of the claw 102 is matched with the volute tooth 125 of the bevel gear 123 through the stopper 126.

[0082] Through the above structure, the bevel gear 123 is rotated, and the bevel gear 123 drives the bevel gear plate 122 to rotate, and then the vortex teeth 125 on the top cooperate with the limit block 126 at the bottom of the claw 102 to drive the three claws 102 to move centripetally along the slideway 124 of the sliding seat 121. Under the action of the vortex teeth 125 and the limit block 126 at the bottom of the claw, the three claws 102 move equal distances, thereby achieving an automatic centering effect.

[0083] Example 6

[0084] The same points as the above embodiments or their combinations are not described in detail, except that:

[0085] To achieve automatic adjustment of the horizontal and vertical adjustment rods, see Figure 5 , Figure 6 In this embodiment, the adjusting crossbar 203 and the column 202 below the adjusting crossbar 203 are further provided with a displacement adjustment mechanism 205. The adjusting crossbar 203 and the adjusting column 204 are driven to move by the displacement adjustment mechanism 205, thereby achieving automatic adjustment, as described in detail below.

[0086] For details, see Figure 5 , Figure 6 The displacement adjustment mechanism 205 includes an adjustment motor 251, a transmission member 252, a threaded sleeve 253 and a threaded rod 254. The adjustment motor 251 is arranged on the side of the column 202 below the adjustment crossbar 203. The power output part of the adjustment motor 251 is connected to the threaded sleeve 253 through the transmission member 252. The threaded sleeve 253 is threadedly sleeved on the threaded rod 254 and is arranged inside the top of the column 202 through the transmission member 252. The two ends of the threaded rod 254 are rotatably connected to the adjustment crossbar 203 through bearings. The bottom of the adjustment crossbar 203 is provided with an installation groove 255 for installing the threaded rod 254, and the threaded rod 254 is arranged in the installation groove 255.

[0087] At the same time, a positioning bolt 260 is hingedly provided at the end of the adjusting cross bar 203 at the other end of the threaded rod 254, and a positioning groove 261 is provided at the end of the threaded rod 254 corresponding to the positioning bolt 260. A limiting groove 262 is provided below the adjusting cross bar 203 corresponding to the positioning groove 261, and the positioning bolt 260 is positioned to position the threaded rod 254 when it is located in the positioning groove 261 and the limiting groove 262, and a butterfly nut 263 is provided on the positioning bolt 260.

[0088] Through the above structure, the adjusting motor 251 runs through the transmission member 252 to drive the threaded sleeve 253 to rotate. The threaded sleeve 253 rotates and simultaneously cooperates with the threaded rod 254. Under the action of the thread of the threaded sleeve 253, the threaded rod 254 drives the adjusting cross bar to move, thereby driving the adjusting cross bar to slide along the sliding hole opened in the column, thereby completing the automatic adjustment of the position of the adjusting cross bar.

[0089] In addition, to achieve automatic adjustment of the adjustment pole, see Figure 5 , Figure 6 A tightening bolt 256 is also provided on the threaded sleeve 253. The tightening bolt 256 is threadedly connected and penetrates the threaded sleeve 253 and then abuts against the threaded rod 254. By rotating the tightening bolt 256, the threaded sleeve 253 and the threaded rod 254 can be relatively fixed.

[0090] The threaded rod 254 is provided with a reel 258 at one end close to the adjusting rod 204. A steel wire rope 259 is reeled on the reel 258, and the other end of the steel wire rope 259 is connected to the bottom end of the adjusting rod 204. A slide slot for the adjusting rod 204 to pass through is provided at the end of the threaded rod 254 corresponding to the adjusting rod 204.

[0091] Through the above structure, after the threaded sleeve 253 and the threaded rod 254 are fixed to each other by the tightening bolt 256, the threaded sleeve 253 and the threaded rod 254 can be driven to rotate synchronously by the adjusting motor 251, thereby driving the winding wheel 258 at the end of the threaded rod 254 to wind up the wire rope 259, and the adjusting vertical pole can be raised or lowered under the action of the wire rope 259 and its own gravity.

[0092] In addition, in order to facilitate the adjustment of the tightness of the tightening bolt 256 , a rectangular through hole 257 is opened on the adjusting cross bar 203 corresponding to the tightening bolt 256 .

[0093] The working principle of the large DC motor brush holder quick installation and correction tool of the present invention is as follows:

[0094] When the present invention is used, the positioning sleeve 201 of the positioning part is installed in the middle of the three claws 102 of the clamping part, and the positioning sleeve 201 and the column 202 are positioned by the claws 102. The brush holder 3 is installed as a whole on the claws 102 of the three-claw chuck 101 of the clamping part 1, and the brush holder 3 is positioned by the stepped claws. After the positioning is completed, the adjusting cross bar 203 is slid along the sliding hole at the top of the column 202 according to the scale on the adjusting cross bar 203 and the spacing between the adjusting vertical rod 204 and the brush holder 302. After the adjusting vertical rod 204 is adjusted to a suitable position, the position of the adjusting cross bar 203 is fixed, and the adjusting vertical rod 204 is slid longitudinally to adjust the height of the adjusting vertical rod 204. After the adjustment is completed, the gap between the adjusting vertical rod 204 and the brush holder is fixed, and the carbon brush can be installed in the box brush holder 302. The carbon brush installed in the brush holder 302 is limited by the adjusting vertical rod 204, and the length of the carbon brush extending out of the brush holder 302 during installation is consistent.

[0095] When it is necessary to adjust the position of the adjusting cross bar, the positioning bolt 260 at the end of the adjusting cross bar 203 is placed in the positioning groove 261 at the end of the threaded rod 254 and the limiting groove 262 at the end of the adjusting cross bar at the same time, the butterfly nut 263 is rotated to position the threaded rod 254, and the adjusting motor 251 is started. The adjusting motor 251 drives the threaded sleeve 253 to rotate through the transmission member 252. The threaded sleeve 253 rotates and simultaneously cooperates with the thread of the threaded rod 254. Under the action of the thread of the threaded sleeve 253, the threaded rod 254 drives the adjusting cross bar 203 to move, thereby driving the adjusting cross bar 203 to slide along the sliding hole opened at the top of the column 202, thereby completing the automatic adjustment of the position of the adjusting cross bar 203.

[0096] When it is necessary to adjust the position of the adjusting upright, rotate the butterfly nut 263 to loosen the positioning bolt 260, and separate the positioning bolt 260 at the end of the adjusting cross bar 203 from the positioning groove 261 at the end of the threaded rod 254 and the limiting groove 262 at the end of the adjusting cross bar, so that the threaded rod 254 and the adjusting cross bar 203 are in a rotationally connected state. After the positions of the threaded sleeve and the threaded rod 254 are fixed to each other by the tightening bolt 256, the threaded sleeve 253 and the threaded rod 254 are driven to rotate synchronously by the adjusting motor 251, thereby driving the winding wheel 258 at the end of the threaded rod 254 to wind up the wire rope 259, and the adjusting upright is raised and lowered under the action of the wire rope 259 and its own gravity, thereby completing the automatic adjustment of the position of the adjusting upright 204.

[0097] It should be noted that, when the device is implemented, the structure described in the drawings of this specification is not a fixed and unchanging implementation method. In addition, the drawings of this specification and the drawings of the abstract are only schematic diagrams and do not represent the specific structure and actual quantity of the specific implementation.

[0098] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by a person of ordinary skill in the field to which the invention belongs. The use of "one" or "an" and other similar words in the specification and claims of this application does not necessarily indicate a quantitative limitation. "Include" or "comprises" and other similar words mean that the elements or components appearing before the word include the elements or components listed after the word and their equivalents, without excluding other elements or components. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0099] The exemplary implementation modes of the present invention are described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various combinations of the technical features and structures proposed in the present invention can be made without exceeding the protection scope of the present invention.

Claims

1. A fast installation and correction tool for large DC motor brush holders, characterized by: It comprises a clamping part for supporting the brush frame and a positioning part for positioning the angle and position of the brush holder, wherein the positioning part is clamped in the middle of the clamping part.

2. The large DC motor brush holder quick installation and correction tool according to claim 1 is characterized by: The clamping part is a three-jaw chuck, and the clamping jaws of the three-jaw chuck are stepped jaws; The three-jaw chuck is a chuck with an automatic centering structure.

3. The large DC motor brush holder quick installation and correction tool according to claim 2 is characterized by: The positioning part includes a positioning sleeve, a column, an adjusting cross bar and an adjusting vertical rod. The positioning sleeve is clamped in the middle of the clamping part, the bottom end of the column is rotatably inserted into the inside of the positioning sleeve, the adjusting cross bar is slidably inserted into the top end of the column, and the adjusting vertical rod is slidably inserted into the end of the adjusting cross bar.

4. The large DC motor brush holder quick installation and correction tool according to claim 3 is characterized by: A bearing is arranged inside the positioning sleeve, and the positioning sleeve is rotatably sleeved on the bottom end of the column through the bearing.

5. The large DC motor brush holder quick installation and correction tool according to claim 4 is characterized by: A scale disc is fixedly arranged on the top of the positioning sleeve, a scale pointer is arranged on the column, and the scale pointer is fixedly sleeved on the column above the scale disc.

6. The large DC motor brush holder quick installation and correction tool according to claim 3 is characterized by: The adjusting cross bar is engraved with scales.

7. The large DC motor brush holder quick installation and correction tool according to claim 6 is characterized by: The adjusting cross bar is a round bar with a horizontal plane on the top, and the top of the column is provided with a sliding hole that matches the specification of the adjusting cross bar, and the adjusting cross bar is inserted into the sliding hole on the top of the column; The adjusting cross bar.

8. The large DC motor brush holder quick installation and correction tool according to claim 3 is characterized by: The adjusting vertical rod is a round rod with a vertical plane on the side. The end of the adjusting cross bar is vertically provided with a sliding sleeve. The sliding sleeve is adapted to the specification of the adjusting vertical rod. The adjusting vertical rod is slidably inserted in the sliding sleeve.

9. The large DC motor brush holder quick installation and correction tool according to any one of claims 3 to 8, characterized in that: The upright column is an electric push rod or a hydraulic lift rod; The adjusting crossbar and the column below the adjusting crossbar are also provided with a displacement adjusting mechanism, the displacement adjusting mechanism includes an adjusting motor, a transmission member, a threaded sleeve and a threaded rod, the adjusting motor is arranged on the side of the column below the adjusting crossbar, the power output part of the adjusting motor is connected to the threaded sleeve through the transmission member, the threaded sleeve is threadedly sleeved on the threaded rod, and is arranged inside the top of the column through the transmission member, the two ends of the threaded rod are rotatably connected to the adjusting crossbar through bearings, the bottom of the adjusting crossbar is provided with an installation groove for installing the threaded rod, and the threaded rod is arranged in the installation groove; The threaded sleeve is also provided with a tightening bolt, which is threadedly connected and penetrates the threaded sleeve and then abuts against the threaded rod. In addition, a rectangular through hole is opened at the adjusting cross bar corresponding to the tightening bolt; a winding wheel is provided at one end of the threaded rod close to the adjusting vertical rod, a steel wire rope is wound on the winding wheel, and the other end of the steel wire rope is connected to the bottom end of the adjusting vertical rod, and a sliding groove for the adjusting vertical rod to pass through is opened at the end of the threaded rod corresponding to the adjusting vertical rod; At the same time, a positioning bolt is hingedly provided at the end of the adjusting cross bar at the other end of the threaded rod, a positioning groove is provided at the end of the threaded rod corresponding to the positioning bolt, and a limiting groove is provided below the adjusting cross bar corresponding to the positioning groove. When the positioning bolt is located in the positioning groove and the limiting groove, the threaded rod is positioned, and a butterfly nut is provided on the positioning bolt; The transmission member includes a pulley group and a bearing frame. The adjusting motor is connected to the threaded sleeve through the pulley group. The bearing frame is symmetrically arranged on the threaded sleeve through bearings. At the same time, the threaded sleeve is mounted on the inner wall of the top end of the column through the bearing frame.

10. The large DC motor brush holder quick installation and correction tool according to claim 9, characterized in that: The positioning sleeve, the top of the column and the end of the adjusting crossbar are all provided with retaining hand wheels; The retaining hand wheel at the positioning sleeve is threadedly connected and passes through the positioning sleeve and abuts against the bottom side of the column; The retaining hand wheel on the top of the column is threadedly connected and passes through the retaining hand wheel and then abuts against the adjusting cross bar; The retaining hand wheel at the end of the adjusting cross bar is threadedly connected and passes through the end of the adjusting cross bar and the sliding sleeve in sequence, and then abuts against the adjusting vertical rod.

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