TYP rotor buckling structure

Abstract

The utility model provides a TYP rotor buckling and pressing structure, which relates to the technical field of motor rotor production, and comprises a TYP rotor punching sheet, the whole TYP rotor punching sheet is of a circular structure, and a circle of rivet holes are arranged around the outer ring of the circumference of the TYP rotor punching sheet; a circle of self-buckling-pressing grooves are formed in the positions, close to the circle of riveting holes, of the TYP rotor punching sheet in a surrounding and penetrating mode, and the self-buckling-pressing grooves are located in the inner sides of the riveting holes and are closer to the circle center of the TYP rotor punching sheet compared with the riveting holes. A half of the self-buckling-pressing grooves in one circle are parallel to the tangential direction of the circumference where the body is located, and the remaining half of the self-buckling-pressing grooves are perpendicular to the tangential direction of the circumference where the body is located; a V-shaped clamping piece is fixedly hung at the bottom position of the inner side of the self-buckling-pressing groove, the self-buckling-pressing groove and the riveting hole are used in a combined mode, the assembling flexibility of the TYP rotor punching sheet is improved, and different rotor assembling modes can be adopted according to the quality and process requirements of different products.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotor production, in particular to a TYP rotor pressing structure. Background Art

[0002] The rotor structure of variable frequency permanent magnet motor (TYP) is similar to that of new energy vehicle motor rotor, but it does not have the batch advantage of new energy vehicle motor. It is a typical production mode of multiple specifications and small batches. The manufacturing of stator and rotor cores cannot adopt the method of automatic stamping and automatic lamination by progressive die. It can only adopt the traditional method of compound punching and then lamination. In particular, rotor lamination is more difficult than ordinary motor core. Therefore, the buckling structure of rotor punching is of great significance to the quality of core and the improvement of lamination production efficiency.

[0003] The TYP rotor structure of the progressive die automatic stamping generally adopts a "V" self-buckled groove structure. The "V"-shaped grooves are distributed on the circumference, and coincide with or are parallel to the tangent of the circumference at the point. Automatic buckling and stacking are performed during the stamping process, which is suitable for the production of small-sized, single-specification, large-scale products with high precision and high quality consistency. However, this structure is used in large-scale, small-batch industrial motor TYP motors, and there is a possibility that the iron core will become loose during transportation;

[0004] For the lamination structure of TYP motor rotor core with relatively large specifications, many manufacturers use riveted hole structure, and use the lamination method of lamination core by riveting the core in sections or lamination as a whole and then fastening it with through-core double-head screws. This riveted structure is suitable for lamination of products with relatively large specifications and small batches. It has high lamination firmness and is not easy to deform during the production process. For lamination of small-sized TYP motor core, the production efficiency is low and the labor cost is high;

[0005] Based on the above existing rotor buckling structure, it is unable to meet the production requirements of rotor core lamination manufacturing with different specifications and sizes and different assembly forms. It can only be compatible with the specific assembly production requirements of rotor cores of a single specification and can only meet the set assembly requirements under a specific assembly form. It has a relatively single application and poor practicality. Utility Model Content

[0006] In view of this, the utility model provides a TYP rotor buckling structure to solve the problem that it cannot adapt to the production needs of rotor core stacking manufacturing with different specifications and sizes and different assembly forms, and can only meet the set assembly needs under a specific assembly form, with relatively single application and poor practicality.

[0007] The technical solution proposed by the utility model is: a TYP rotor buckling structure, specifically comprising a TYP rotor punching sheet, the TYP rotor punching sheet is a circular structure as a whole, and a circle of rivet holes is arranged around the outer circle of the TYP rotor punching sheet;

[0008] A circle of self-locking grooves is formed around and through the TYP rotor punching sheet near a circle of rivet holes. The self-locking grooves are located inside the rivet holes and are closer to the center of the TYP rotor punching sheet than the rivet holes.

[0009] Half of the self-depressing grooves in a circle are parallel to the tangent direction of the circle where the body is located, and the remaining half of the self-depressing grooves are perpendicular to the tangent direction of the circle where the body is located;

[0010] The self-buckle grooves arranged in the direction of the circumferential tangent are arranged in a staggered interval with the self-buckle grooves arranged in the direction perpendicular to the circumferential tangent.

[0011] Furthermore,

[0012] Two stoppers are symmetrically welded on the long sides of the top opening of the self-depressing groove. The stoppers are in a strip-shaped oblique section structure as a whole, and the oblique section of the stoppers is arranged toward the top side of the self-depressing groove.

[0013] Furthermore,

[0014] Both ends of the stopper are arc-shaped transition structures.

[0015] Furthermore,

[0016] A V-shaped clamping piece is fixedly mounted at the bottom of the inner side of the self-locking pressing groove. When the TYP rotor punching sheets are arranged and stacked together, the V-shaped clamping piece is plugged and matched with the self-locking pressing groove on the adjacent side.

[0017] Furthermore,

[0018] An arc-shaped warping piece is fixedly connected to the middle position of the inner side of the V-shaped clamping piece, and the V-shaped clamping piece protrudes from the self-depressing groove.

[0019] Furthermore,

[0020] The arc-shaped warping piece and the V-shaped clamping piece are arched in opposite directions.

[0021] Furthermore,

[0022] The arc-shaped lift-up piece and the V-shaped clamping piece are both elastic, and the arc-shaped lift-up piece is used to assist in lifting and loosening the V-shaped clamping piece.

[0023] The utility model provides a TYP rotor buckling structure, which has the following beneficial effects:

[0024] When the utility model is in use, the self-buckle grooves of the TYP rotor punching sheets are arranged in different circumferential tangent directions at intervals, which is beneficial to improving the firmness of the segmented stacking of the iron core and reducing more than 80% of the loose rate of the iron core during production and transportation.

[0025] In addition, the self-pressing grooves of the TYP rotor punchings are arranged in different circumferential tangent directions, which improves the accuracy of the rotor core magnetic steel slots and increases the magnetic steel assembly efficiency by more than 10%.

[0026] In addition, the combination of self-locking grooves and rivet holes improves the flexibility of TYP rotor punching assembly, and different rotor assembly methods can be used according to the quality and process requirements of different products.

[0027] In addition, the combination of self-clinching grooves and rivet holes allows different batches of products to be either installed on the shaft by core punchings and manually inserted with magnets (for small batches), or the rotor core can be stacked in sections and the magnets can be automatically or semi-automatically inserted by machine (for large batches), which will increase production efficiency by more than 50%. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0029] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0030] In the attached picture:

[0031] Figure 1 The overall structure schematic diagram of the utility model is shown;

[0032] Figure 2 The overall back side structure schematic diagram of the utility model is shown;

[0033] Figure 3 The utility model is shown Figure 1 The enlarged structural diagram of part A in the middle;

[0034] Figure 4 The utility model is shown Figure 2 The enlarged schematic diagram of part B in the middle;

[0035] Figure 5 A schematic diagram showing the state of the V-shaped clamping piece and the self-depressing groove being clamped together in the utility model is shown;

[0036] Figure 6 The schematic diagram of the inner side structure of the self-depressing groove of the utility model is shown;

[0037] Reference numerals list

[0038] 1. TYP rotor punching;

[0039] 2. Rivet holes;

[0040] 3. Self-fastening groove; 301. V-shaped snap-in piece; 3011. Arc-shaped warping piece; 302. Stopper 302. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] Please refer to Figures 1 to 6 ;

[0043] Embodiment 1:

[0044] The utility model proposes a TYP rotor buckling structure, including a TYP rotor punching sheet 1, a rivet hole 2, a self-buckle groove 3, a V-shaped clamping sheet 301, an arc-shaped warping sheet 3011, and a stopper 302. The TYP rotor punching sheet 1 is a circular structure as a whole, and a circle of rivet holes 2 are arranged around the circumferential outer ring position of the TYP rotor punching sheet 1. The circle of rivet holes 2 is suitable for stacking the TYP rotor punching sheet 1 by adopting the method of segmented riveting of the iron core or fastening with a through-core double-head screw after overall stacking. The circle of rivet holes 2 is suitable for stacking and riveting the TYP rotor punching sheet 1 with larger specifications and smaller batches;

[0045] Among them, a circle of self-pressing grooves 3 are arranged around and through the position of a circle of rivet holes 2 on the TYP rotor punching sheet 1, and the self-pressing grooves 3 are located on the inner side of the rivet holes 2 and are closer to the center of the TYP rotor punching sheet 1 than the rivet holes 2;

[0046] A V-shaped clamping piece 301 is fixedly hoisted at the bottom position of the inner side of the self-buckle groove 3. When the TYP rotor punching sheets 1 are arranged and stacked together, the V-shaped clamping piece 301 and the self-buckle groove 3 on the adjacent side are inserted and matched, and the two adjacent TYP rotor punching sheets 1 can be buckled and fixed together; a circle of self-buckle grooves 3 can be used to automatically buckle and stack the TYP rotor punching sheets 1 during the punching process, and is suitable for the production of TYP rotor punching sheets 1 with small specifications and large quantities of single specifications;

[0047] The utility model redesigns the buckling (riveting) structure of the TYP rotor, and adopts a combination of the self-buckling groove 3 and the rivet hole 2, which is suitable for the production of small-size TYP motor rotors in a certain batch, and also takes into account the production of large-size TYP motor rotors in a very small batch, and can be compatible with assembly requirements of different sizes and forms, and has a wide range of applications and good practicality.

[0048] Half of the self-depressing grooves 3 in a circle of self-depressing grooves 3 are parallel to the tangent direction of the circle where the body is located, and the remaining half of the self-depressing grooves 3 are perpendicular to the tangent direction of the circle where the body is located;

[0049] The self-buckle grooves 3 arranged in the tangential direction of the circle and the self-buckle grooves 3 arranged in the perpendicular tangential direction of the circle are arranged in a staggered interval. When a small batch of punching sheets need to be stacked into an iron core, a circle of self-buckle grooves 3 are arranged in a perpendicular tangential direction of the circle point. When the punching sheets are stacked, the buckling force directions on the self-buckle grooves 3 form a certain angle with each other, which can greatly increase the stacking force and make it more firm, so that the stacked punching sheets are not easy to loosen during the transportation process of the production process;

[0050] Preferably,

[0051] Two blocks 302 are symmetrically welded on the long sides of the top opening of the self-clamping groove 3. The block 302 is an overall strip-shaped oblique-section structure, and the oblique section of the block 302 is arranged toward the top side of the self-clamping groove 3. The two blocks 302 are used to block and limit the V-shaped clip 301 in the self-clamping groove 3, and the oblique section of the block 302 is conducive to guiding the V-shaped clip 301 into the self-clamping groove 3 for insertion.

[0052] Preferably,

[0053] Both ends of the stopper 302 are arc-shaped transition structures.

[0054] Based on the first embodiment, the second embodiment:

[0055] An arc-shaped lift-off piece 3011 is fixedly connected to the middle position of the inner side of the V-shaped clamping piece 301 , and the V-shaped clamping piece 301 protrudes from the self-depressing groove 3 .

[0056] Preferably,

[0057] The arc-shaped lift piece 3011 and the V-shaped clamping piece 301 are arched in opposite directions.

[0058] Preferably,

[0059] Both the arc-shaped lifter 3011 and the V-shaped snap-in piece 301 are elastic. In some cases, the TYP rotor punching piece 1 that has been stacked and assembled together needs to be reworked and disassembled. By plugging an external prying tool (such as a screwdriver, etc.) into the arc-shaped lifter 3011 and performing a simple lever prying action, the arc-shaped lifter 3011 can be easily removed from the self-pressing groove 3. Compared with the prior art that lacks an auxiliary loosening structure on the V-shaped snap-in piece 301, the loosening operation of the arc-shaped lifter 3011 and the self-pressing groove 3 is convenient and quick, which helps to indirectly improve the overall disassembly efficiency of the TYP rotor punching piece 1 after stacking and assembly.

[0060] Working principle: A circle of rivet holes 2 is suitable for laminating TYP rotor punchings 1 by riveting the core segmentally or laminating the whole body and then fastening with a through-core double-head screw. When the TYP rotor punchings 1 are arranged and laminated together, the V-shaped clamping piece 301 and the self-buckle groove 3 on the adjacent side are inserted and matched, and the two adjacent TYP rotor punchings 1 can be buckled and fixed together; a circle of self-buckle grooves 3 can be used for automatically buckling and stacking the TYP rotor punchings 1 during the stamping process, and is suitable for the production of TYP rotor punchings 1 with small specifications and large quantities of single specifications;

[0061] The two stoppers 302 are used to block the V-shaped card piece 301 in the self-depressing groove 3, and the oblique section of the stopper 302 is conducive to guiding the V-shaped card piece 301 to be inserted into the self-depressing groove 3;

[0062] By plugging an external prying tool (such as a screwdriver, etc.) into the arc-shaped lift piece 3011 and performing a lever prying action, the arc-shaped lift piece 3011 can be easily removed from the self-pressing groove 3 to complete the loosening and disassembly of the arc-shaped lift piece 3011 and the self-pressing groove 3.

[0063] In this article, there are a few points to note:

[0064] 1. The drawings of the embodiments of the present utility model only relate to the structures related to the embodiments of the present utility model, and other structures may refer to the usual designs.

[0065] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0066] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A TYP rotor buckling structure, comprising: A TYP rotor punching sheet (1), wherein the TYP rotor punching sheet (1) is in a circular structure as a whole, and a circle of rivet holes (2) is arranged around the outer circle of the TYP rotor punching sheet (1); The invention is characterized in that a circle of self-locking grooves (3) are arranged around and through the position of the TYP rotor punching sheet (1) near a circle of rivet holes (2), and the self-locking grooves (3) are located inside the rivet holes (2) and closer to the center of the TYP rotor punching sheet (1) than the rivet holes (2); One-half of the self-depressing grooves (3) in a circle of the self-depressing grooves (3) are parallel to the tangent direction of the circle where the body is located, and the remaining one-half of the self-depressing grooves (3) are perpendicular to the tangent direction of the circle where the body is located; The self-locking and pressing grooves (3) arranged in the direction of the circumferential tangent are arranged in a staggered manner with the self-locking and pressing grooves (3) arranged in the direction perpendicular to the circumferential tangent.

2. A TYP rotor buckling structure according to claim 1, characterized in that: Two stoppers (302) are symmetrically welded on the long sides of the top opening of the self-depressing groove (3); the stoppers (302) are in a strip-shaped oblique cross-section structure as a whole, and the oblique cross-section of the stoppers (302) is arranged toward the top side of the self-depressing groove (3).

3. A TYP rotor buckling structure according to claim 2, characterized in that: Both ends of the stopper (302) are arc-shaped transition structures.

4. A TYP rotor buckling structure according to claim 1, characterized in that: A V-shaped clamping piece (301) is fixedly mounted at the bottom of the inner side of the self-locking groove (3); when the TYP rotor punching sheets (1) are arranged and stacked together, the V-shaped clamping piece (301) is inserted and matched with the self-locking groove (3) on the adjacent side.

5. A TYP rotor buckling structure according to claim 4, characterized in that: An arc-shaped warping piece (3011) is fixedly connected to the middle position of the inner side of the V-shaped card-joining piece (301), and the V-shaped card-joining piece (301) protrudes from the self-depressing groove (3).

6. A TYP rotor buckling structure according to claim 5, characterized in that: The arc-shaped warping piece (3011) and the V-shaped clamping piece (301) are arched in opposite directions.

7. A TYP rotor buckling structure according to claim 6, characterized in that: The arc-shaped lift-off piece (3011) and the V-shaped clamping piece (301) are both elastic, and the arc-shaped lift-off piece (3011) is used to assist in lifting and loosening the V-shaped clamping piece (301).

Images