Automobile generator claw pole positioning tool

Abstract

The utility model discloses an automobile generator claw pole positioning tool which comprises a base, a press-fitting seat is arranged in the center of the top of the base, a positioning hole is formed in the center of the press-fitting seat in the vertical direction, and at least two first positioning blocks matched with grooves between claw teeth of a generator claw pole are annularly and evenly arranged on the top of the press-fitting seat. At least two stand columns are evenly arranged on the periphery of the press-fitting seat, a second positioning block matched with a groove between claw teeth of a generator claw pole is arranged on the side, facing the center of the press-fitting seat, of each stand column, a sliding block is installed at the lower end of each stand column, and sliding grooves with the same number as the sliding blocks are annularly and evenly formed in the top of the base. The sliding blocks are arranged in the corresponding sliding grooves in a sliding mode, positioning assembly between the claw poles and the rotor shaft of the automobile generator can be achieved, it is ensured that air gaps between the claw poles of the automobile generator are uniform, and the problems that due to the fact that the air gaps between the claw poles of the automobile generator are not uniform, electromagnetic noise is large, the requirement for a rectifier is high, and the service life is short are solved. Moreover, operation is difficult, and manpower is wasted.

Description

TECHNICAL FIELD

[0001] The utility model relates to generator rotor assembly auxiliary tool technical field especially is involved in a kind of automobile generator claw pole positioning tool. BACKGROUND

[0002] Automobile silicon rectifier generator is generally composed of rotor, stator, silicon rectifier, end cover four parts.Two claw poles are pressed on the rotor shaft, and each of the two claw poles has six bird beak-shaped magnetic poles, and the claw pole cavity is provided with magnetic field winding.In ideal conditions, the air gap between the bird beak-shaped magnetic poles should be the same, which needs to be guaranteed as much as possible during assembly.The past process flow is:1) the lower claw pole is fixed by clamp, and the rotor shaft is pressed into the lower claw pole;2) magnetic field winding (rotor coil) and magnetic yoke are installed in claw pole space;3) the height of the other claw pole and the air gap between the lower claw pole which has been installed are judged by the naked eye;4) the air gap is judged by the naked eye, and the other rotor claw pole is pressed into the rotor shaft.

[0003] However, since the judgment of whether the air gap between the claw poles is uniform relies on the naked eye, the assembly quality depends on intuitive judgment and the experience of workers, and lacks specific and objective judgment basis.Therefore, the automobile generator assembled according to the traditional method often has large electromagnetic noise, high requirement for rectifier, low service life due to uneven air gap between claw poles;And, it is difficult to operate, wastes manpower, and has low production efficiency. SUMMARY

[0004] The utility model aims at overcoming the above technical deficiencies, and proposes an automobile generator claw pole positioning tool, which solves the problem that in the prior art, the judgment of whether the air gap between the claw poles is uniform relies on the naked eye, the assembly quality depends on intuitive judgment and the experience of workers, and lacks specific and objective judgment basis, so that the automobile generator assembled often has large electromagnetic noise, high requirement for rectifier, low service life due to uneven air gap between claw poles;And, it is difficult to operate, wastes manpower, and has low production efficiency.

[0005] To achieve the above technical purpose, the technical scheme of the utility model provides a kind of automobile generator claw pole positioning tool, including base, the center of base top is equipped with press fitting seat, and press fitting seat center is equipped with locating hole along vertical direction, and the top of press fitting seat is uniformly equipped with at least two first locating blocks matched with the recess between the claw tooth of generator claw pole, and the periphery of press fitting seat is uniformly equipped with at least two columns, and the side of each column towards press fitting seat center is equipped with second locating block matched with the recess between the claw tooth of generator claw pole, and the lower end of each column is equipped with sliding block, and the top of base is uniformly equipped with the sliding slot of the equal number of sliding block, and sliding block is slidably arranged in corresponding sliding slot, and the inside of base is equipped with installation cavity communicated with each sliding slot, and gear is rotatably arranged in installation cavity, and the top of gear is equipped with disc thread, and the bottom of each sliding block is equipped with gear block engaged with disc thread, and the inside of base is equipped with telescopic cavity communicated with installation cavity, and rack engaged with gear is slidably arranged in telescopic cavity, and one end of telescopic cavity is open, and the other end is closed, and rack one end passes through the opening of telescopic cavity and extends out from the inside of telescopic cavity, and the other end of rack is connected with the closed end of telescopic cavity by elastic member.

[0006] Further, the first locating block is provided with a waist-shaped hole, the press fitting seat is provided with a threaded hole, and a bolt is fixed in the waist-shaped hole and the threaded hole to install the locating block on the top of the press fitting seat.

[0007] Further, the sliding block is provided with a limiting slot on both sides, and the sliding slot is provided with a limiting block slidably arranged in the limiting slot.

[0008] Further, the bottom of the installation cavity is provided with an annular rotating groove, and the bottom of the gear is provided with an annular rotating block rotatably arranged in the annular rotating groove.

[0009] Further, the end of the rack extending out of the telescopic cavity is provided with a handle ring.

[0010] Further, the elastic member is a spring.

[0011] The utility model discloses a kind of automobile generator claw pole positioning tool, can realize the positioning assembly between the claw pole of automobile generator and rotor shaft, ensure that the claw pole of automobile generator is evenly spaced, avoid the claw pole of automobile generator and the uneven spacing caused by electromagnetic noise, high requirement to rectifier, relatively low life;And, difficult operation, waste manpower. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the automobile generator claw pole positioning tool structure schematic view of the utility model embodiment;

[0013] Figure 2 It is the automobile generator claw pole positioning tool transverse sectional view of the utility model embodiment;

[0014] Figure 3It is the longitudinal sectional view of the automobile generator claw pole positioning tool of the embodiment of the utility model;

[0015] Figure 4 It is the schematic diagram of gear and sliding block cooperation structure of the embodiment of the utility model;

[0016] Figure 5 It is Figure 1 The enlarged view of A of the utility model;

[0017] In the figure: 1, base;11, sliding groove;12, installation cavity;13, telescopic cavity;14, limiting block;15, annular rotating groove;2, press-fit seat;21, positioning hole;3, first positioning block;31, waist-shaped hole;32, bolt;;4, stand;5, second positioning block;6, sliding block;61, tooth block;62, limiting groove;7, gear;71, disc-shaped thread;72, annular rotating block;8, rack;81, handle ring;9, elastic member. DETAILED DESCRIPTION

[0018] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with the embodiment, and the utility model is further detailed.The specific embodiments described herein are merely used to explain the utility model, and are not used to limit the utility model.

[0019] The embodiment of the utility model provides a kind of automobile generator claw pole positioning tool, as Figures 1-5 As shown, including base 1, the top center of base 1 is equipped with press-fit seat 2, and the center of press-fit seat 2 is equipped with positioning hole 21 along vertical direction, and the top of press-fit seat 2 is evenly equipped with at least two first positioning blocks 3 matched with the recess between the magnetic pole of generator claw pole, and the periphery of press-fit seat 2 is evenly equipped with at least two stands 4, and the side of each stand 4 towards the center of press-fit seat 2 is equipped with second positioning block 5 matched with the recess between the magnetic pole of generator claw pole, and the lower end of each stand 4 is equipped with sliding block 6, and the top of base 1 is annular and evenly equipped with sliding groove 11 equal to the number of sliding block 6, and sliding block 6 is slidably arranged in corresponding sliding groove 11, and the bottom of base 1 is equipped with installation cavity 12 communicated with each sliding groove 11, and gear 7 is rotatably arranged in installation cavity 12, and disc-shaped thread 71 is arranged on the top of gear 7, and the bottom of each sliding block 6 is equipped with tooth block 61 engaged with disc-shaped thread 71, and the inside of base 1 is equipped with telescopic cavity 13 communicated with installation cavity 12, and rack 8 engaged with gear 7 is slidably arranged in telescopic cavity 13, and one end of telescopic cavity 13 is open, and the other end is closed, and one end of rack 8 extends out from the inside of telescopic cavity 13 through the opening of telescopic cavity 13, and the other end of rack 8 is connected with the closed end of telescopic cavity 13 through elastic member 9, and the elastic member is spring or other elastic article.

[0020] When the automobile generator rotor claw pole assembly is carried out, the operator first puts the rotor shaft into the positioning hole 21 of the pressing seat 2, then fixes the lower claw pole between the first positioning blocks 3 on the top of the pressing seat 2, and then puts the magnetic field winding and the magnetic yoke into the claw pole space. The operator pulls the rack 8 with one hand to make the rack 8 drive the gear 7 to rotate, and at the same time, the elastic member 9 is elastically deformed. The gear 7 drives the sliding block 6 to slide in the sliding groove 11 through the disc-shaped thread 71 and the tooth block 61, so that the second positioning block 5 is opened. After the second positioning block 5 is opened, the operator clamps the upper claw pole between the second positioning blocks 5 with the other hand, then releases the rack 8, and the elastic member 9 restores the original state. The elastic member 9 drives the rack 8 to rotate, the rack 8 drives the gear 7 to rotate in the opposite direction, the gear 7 drives the sliding block 6 to slide in the sliding groove 11 through the disc-shaped thread 71 and the tooth block 61, so that the second positioning block 5 is closed, the upper claw pole is fixed between the second positioning blocks 5, and then the upper claw pole is pressed into the rotor shaft to complete the assembly process.

[0021] In the embodiment, limit grooves 62 are arranged on both sides of the sliding block 6, and limit blocks 14 are arranged on both sides of the sliding groove 11 and slidably arranged in the limit grooves 62. Through cooperation of the limit grooves 62 and the limit blocks 14, the sliding block 6 can be slidably arranged in the sliding groove 11. In other embodiments, limit grooves 62 are arranged on both sides of the sliding groove 11, and limit blocks 14 are arranged on both sides of the sliding block 6 and slidably arranged in the limit grooves 62. Through cooperation of the limit grooves 62 and the limit blocks 14, the sliding block 6 can be slidably arranged in the sliding groove 11.

[0022] In the embodiment, the bottom of the mounting cavity 12 is provided with an annular rotating groove 15, the cross section of the annular rotating groove 15 is T-shaped structure, the bottom of the gear 7 is provided with an annular rotating block 72 matched with the annular rotating groove 15, the cross section of the annular rotating block 72 is T-shaped structure, and the annular rotating block 72 is rotatably arranged in the annular rotating groove 15, so as to realize stable rotation of the gear 7 in the mounting cavity 12. In other embodiments, the bottom of the gear 7 is provided with an annular rotating groove 15, the cross section of the annular rotating groove 15 is T-shaped structure, the bottom of the mounting cavity 12 is provided with an annular rotating block 72 matched with the annular rotating groove 15, the cross section of the annular rotating block 72 is T-shaped structure, and the annular rotating block 72 is rotatably arranged in the annular rotating groove 15, so as to realize stable rotation of the gear 7 in the mounting cavity 12.

[0023] In order to facilitate pulling the rack 8 to slide in the telescopic cavity 13, in the embodiment, one end of the rack 8 extending out of the telescopic cavity 13 is provided with a handle ring 81, and the handle ring 81 can facilitate the operator to pull the rack 8 to slide in the telescopic cavity 13 by hand.

[0024] In the embodiment, the first positioning block 3 is provided with a waist-shaped hole 31, the pressing seat 2 is provided with a threaded hole, and a bolt 32 is fixed in the waist-shaped hole 31 and the threaded hole 21, so as to install the positioning block 3 on the top of the pressing seat 2, and meanwhile, the waist-shaped hole 31 can adjust the distance between the first positioning block 3 and the center of the pressing seat 2, and is suitable for fixing generator claw poles of different sizes.

[0025] The automobile generator claw pole positioning tool can realize positioning assembly between the claw pole and the rotor shaft of the automobile generator, ensures uniform air gap between the claw poles of the automobile generator, avoids large electromagnetic noise, high requirement for the rectifier and low service life caused by uneven air gap between the claw poles of the automobile generator, and is difficult to operate and wastes manpower.

[0026] The specific implementation manner of the utility model does not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. An automobile generator claw pole positioning tool, characterized by, The utility model provides a kind of generator claw pole pressing device, including base (1), the top center of the base (1) is equipped with pressure seat (2), the center of the pressure seat (2) and along vertical direction is equipped with positioning hole (21), the top of the pressure seat (2) is uniformly equipped with at least two first positioning block (3) with recess between claw tooth of generator claw pole matching, the periphery of the pressure seat (2) is uniformly equipped with at least two stand (4), the side of each the stand (4) towards the center of pressure seat (2) is equipped with second positioning block (5) with recess between claw tooth of generator claw pole matching, the lower end of each the stand (4) is equipped with sliding block (6), the top of the base (1) is uniformly equipped with sliding slot (11) with the number of sliding block (6) equivalent, the sliding block (6) is slidably arranged in corresponding sliding slot (11) inside, the inside of the base (1) is equipped with installation cavity (12) being communicated with each sliding slot (11), the inside of the installation cavity (12) is rotatably equipped with gear (7), the top of the gear (7) is equipped with disc thread (71), the bottom of each the sliding block (6) is equipped with gear block (61) being engaged with disc thread (71), the inside of the base (1) is equipped with telescopic cavity (13) being communicated with installation cavity (12), the inside of the telescopic cavity (13) is slidably equipped with rack (8) being engaged with gear (7), the telescopic cavity (13) one end opening, the other end is closed, the rack (8) one end passes through the opening of telescopic cavity (13) and extends from the inside of telescopic cavity (13), the other end of the rack (8) is connected with the closed end of telescopic cavity (13) by elastic element (9).

2. The automobile generator claw pole positioning tooling of claim 1, wherein, The first positioning block (3) is provided with a waist-shaped hole (31), and the pressure seat (2) is provided with a threaded hole, a bolt (32) is fixed in the waist-shaped hole (31) and the threaded hole, so as to install the positioning block (3) on the top of the pressure seat (2).

3. The automobile generator claw pole positioning tooling of claim 1, wherein, The sliding block (6) is provided with a limiting groove (62) on both sides, and the sliding slot (11) is provided with a limiting block (14) slidably arranged in the limiting groove (62) on both sides.

4. The automobile generator claw pole positioning tooling of claim 1, wherein, The installation cavity (12) is provided with an annular rotating groove (15) at the bottom, and the gear (7) is provided with an annular rotating block (72) rotatably arranged in the annular rotating groove (15).

5. The automobile generator claw pole positioning tooling of claim 1, wherein, The end of the rack (8) extending out of the telescopic cavity (13) is provided with a handle ring (81).

6. The automobile generator claw pole positioning tooling of claim 1, wherein, The elastic element (9) is a spring.

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