Indentation device

Abstract

The utility model belongs to the technical field of mechanical equipment, and discloses a creasing device which comprises a creasing wheel, the creasing wheel is of a split type structure and comprises a plurality of creasing sections, a gasket is selectively arranged between every two adjacent creasing sections, the creasing sections of the creasing wheel and the gaskets are coaxially arranged, the diameter of the gaskets is smaller than or equal to that of the creasing sections, and the diameter of the gaskets is smaller than or equal to that of the creasing sections. Connecting pieces are detachably connected between the indentation sections and the gaskets, and indentation parts capable of forming indentations on the insulation paper are arranged on the circumferential sides of the indentation sections in the circumferential direction of the indentation sections. According to the indentation device, the needed indentation wheel is machined according to a size diagram, then the indentation wheel is cut into a plurality of indentation sections at intervals in the axial direction of the indentation wheel, gaskets can be selectively arranged between every two adjacent indentation sections, the gaskets can be manufactured to be different in thickness, and therefore the indentation size of the indentation wheel is accurately adjusted, the size deviation is reduced, and the production efficiency is improved. And chippings are reduced, and the indentation quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to an indentation device. Background Art

[0002] At present, insulating paper is arranged between the stator slots and conductors of flat wire or round wire motors to ensure insulation between different-phase conductors and between conductors and the stator core, playing a role of isolation and protection during the operation of the motor to avoid faults such as electric arcs and insulation breakdown of the motor.

[0003] Among them, to facilitate placing the insulating paper into the stator slots, an indentation device is usually used to roll out indentations on the insulating paper first. The size of the indentations on the insulating paper is a key factor determining whether the insulating paper is well formed and whether there is paper debris when inserted into the iron core. Since the existing indentation wheels are usually integral indentation wheels, if there is a deviation between the designed indentation size of the insulating paper and the size of the indentation wheel, paper debris is often generated, affecting the product quality.

[0004] Therefore, it is urgent to design a new indentation device to improve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an indentation device to solve the technical problem that if there is a deviation between the designed indentation size of the insulating paper and the size of the indentation wheel, paper debris is often generated, affecting the product quality.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The indentation device includes an indentation wheel. The indentation wheel is of a split structure. The indentation wheel includes a plurality of indentation segments. A gasket is selectively arranged between adjacent two of the indentation segments. The indentation segments and the gaskets of the indentation wheel are coaxially arranged. The diameter of the gasket is less than or equal to the diameter of the indentation segment. A connecting piece is detachably connected between each of the indentation segments and each of the gaskets. A plurality of indentation portions for forming indentations on the insulating paper are arranged on the circumferences of the plurality of indentation segments along the circumferential direction.

[0008] As a preferred scheme of the indentation device, a plurality of threaded holes are formed in the indentation segment and / or the gasket. The plurality of threaded holes in each of the indentation segments and / or each of the gaskets are arranged in one-to-one correspondence to form a plurality of threaded hole groups. The connecting piece includes a plurality of locking bolts. The plurality of locking bolts are threadedly connected to the plurality of threaded hole groups in one-to-one correspondence.

[0009] As a preferred scheme of the indentation device, the number of the threaded hole groups and the locking bolts is three.

[0010] As a preferred embodiment of the indentation device, a counterbore communicating with the threaded hole is provided on the end face of the indentation section on one side of the indentation wheel, and the head of the locking bolt is countersunk in the counterbore.

[0011] As a preferred embodiment of the indentation device, two indentation wheels are provided, one of which is a male wheel and the other is a female wheel. The circumferences of the male wheel and the female wheel mesh with each other and have a gap through which the insulating paper can pass.

[0012] As a preferred embodiment of the indentation device, the indentation portion includes an indentation protrusion and an indentation groove. One of the indentation protrusion and the indentation groove is provided on the circumference of the indentation section of the male wheel, and the other is provided on the circumference of the indentation section of the female wheel.

[0013] As a preferred embodiment of the indentation device, the diameters of the indentation sections at both ends of the male wheel or the female wheel are larger than the diameters of the indentation sections in the middle part thereof.

[0014] As a preferred embodiment of the indentation device, a first mounting shaft that rotates synchronously is coaxially connected to the male wheel, and a second mounting shaft that rotates synchronously is coaxially connected to the female wheel. A driving wheel and a driven wheel are selectively provided on the first mounting shaft and the second mounting shaft, the driving wheel and the driven wheel mesh with each other, and a driving member for driving its rotation is connected to the first mounting shaft or the second mounting shaft connected with the driving wheel.

[0015] As a preferred embodiment of the indentation device, key grooves are provided on the inner walls of the male wheel and the female wheel, and flat keys adapted to be inserted into the key grooves are provided on the circumferences of the first mounting shaft and the second mounting shaft.

[0016] As a preferred embodiment of the indentation device, lock nuts for fixing the male wheel or the female wheel are respectively threadedly connected to both ends of the first mounting shaft, and lock nuts for fixing the male wheel or the female wheel are also respectively threadedly connected to both ends of the second mounting shaft.

[0017] Advantages of the present utility model:

[0018] According to the size of the stator slot, design the indentation position of the insulating paper, select gaskets with corresponding thicknesses and place them between adjacent indentation sections, assemble several indentation sections and gaskets into an integral body by using connecting pieces, and ensure that the indentation portion on the circumference of the assembled indentation wheel corresponds to the indentation position of the insulating paper, so as to reduce dimensional deviation.

[0019] For the production of a split indentation wheel, first, the required indentation wheel is machined according to the dimension drawing, and then the indentation wheel is cut into several indentation segments at intervals along its axial direction. A gasket can be selectively arranged between two adjacent indentation segments. The gasket can be made with different thicknesses, so as to accurately adjust the size of the indentation of the indentation wheel, reduce the deviation in size, reduce the generation of debris, and improve the indentation quality. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the indentation device provided by an embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of the male wheel and the female wheel provided by an embodiment of the present invention;

[0022] Figure 3 is a schematic structural diagram of the male wheel and the female wheel after removing the gasket provided by an embodiment of the present invention.

[0023] In the figure:

[0024] 1, male wheel; 11, indentation groove; 12, first mounting shaft; 13, driving wheel;

[0025] 2, female wheel; 21, indentation protrusion; 22, second mounting shaft; 23, driven wheel; 33, sunk groove; 3, indentation segment; 4, gasket; 5, locking bolt; 6, keyway; 7, jam nut. Detailed Embodiment

[0026] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only parts related to the present invention are shown in the drawings, rather than all the structures.

[0027] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0029] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, 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 thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] As Figure 1 shown, this embodiment provides an indentation device, which includes indentation wheels. There are at least two indentation wheels, one of which is a male wheel 1 and the other is a female wheel 2. The circumferential sides of the male wheel 1 and the female wheel 2 are provided with engaging indentation parts, and there is a gap between the male wheel 1 and the female wheel 2. The insulating paper can pass through the gap between the two. When passing through the gap between the two, indentations can be formed on the surface of the insulating paper through the rolling pressure of the indentation parts.

[0031] Furthermore, the circumferential side of the female wheel 2 is also provided with guiding parts. There are two guiding parts, which are respectively located at both ends of the female wheel 2. When the female wheel 2 and the male wheel 1 are engaged with each other, both ends of the male wheel 1 respectively abut against the two guiding parts. The setting of the guiding parts can play a guiding role in the movement of the insulating paper.

[0032] In other embodiments, there can be one guiding part, that is, it is provided on the circumferential side of the female wheel 2 and at one end thereof. Of course, the guiding part can also be provided on the male wheel 1, and this embodiment does not make specific limitations thereto.

[0033] Further, a first mounting shaft 12 that rotates synchronously is coaxially connected to the male wheel 1, and a second mounting shaft 22 that rotates synchronously is coaxially connected to the female wheel 2. One end of the first mounting shaft 12 is provided with a driving wheel 13, and one end of the second mounting shaft 22 is provided with a driven wheel 23. The circumferences of the driving wheel 13 and the driven wheel 23 mesh with each other, and a driving member for driving the rotation of the first mounting shaft 12 connected to the first mounting shaft 12 with the driving wheel 13 is connected. The driving member drives the first mounting shaft 12 to rotate, the driving wheel 13 connected to the first mounting shaft 12 rotates synchronously, and the driven wheel 23 meshing with the driving wheel 13 rotates, so that the male wheel 1 and the female wheel 2 can rotate synchronously.

[0034] In other embodiments, the driving wheel 13 may be provided on the second mounting shaft 22, and the driving member may also drive the second mounting shaft 22 to rotate. Moreover, in addition to the gears in this embodiment, the form of synchronous rotation may also be a synchronous belt, etc., which will not be listed one by one in this embodiment. Exemplarily, the driving member is a driving motor.

[0035] In order to achieve the synchronous rotation of the first mounting shaft 12 and the male wheel 1, and the synchronous rotation of the second mounting shaft 22 and the female wheel 2. As Figure 2 and Figure 3 shown, key grooves 6 are provided on the inner walls of both the male wheel 1 and the female wheel 2, and flat keys adapted to be inserted into the key grooves 6 are provided on the circumferences of the first mounting shaft 12 and the second mounting shaft 22. Through the mutual cooperation of the flat keys and the key grooves 6, circumferential positioning can be achieved to realize the synchronous rotation of the male wheel 1 and the female wheel 2.

[0036] In addition, locking nuts 7 for fixing the male wheel 1 are respectively threadedly connected to both ends of the first mounting shaft 12, and locking nuts 7 for fixing the female wheel 2 are also respectively threadedly connected to both ends of the second mounting shaft 22. The two locking nuts 7 clamp the male wheel 1 on the first mounting shaft 12, and the two locking nuts 7 clamp the female wheel 2 on the second mounting shaft 22, thereby achieving positioning in the axial direction to ensure the rotation accuracy of the male wheel 1 and the female wheel 2.

[0037] Currently, the indentation wheel usually used is an integral indentation wheel. If there is a deviation between the indentation size design of the insulating paper and the size of the indentation wheel, paper scraps will often be generated, affecting the product quality.

[0038] To solve the above problems, in combination with Figure 2 and Figure 3As shown in the figure, the indentation wheel of this embodiment is of a split structure. The indentation wheel includes several indentation segments 3. A gasket 4 is selectively arranged between two adjacent indentation segments 3. Each indentation segment 3 and each gasket 4 of the indentation wheel are coaxially arranged. The diameter of the gasket 4 is less than or equal to the diameter of the indentation segment 3. A connecting piece is detachably connected between each indentation segment 3 and each gasket 4. An indentation part for forming an indentation on the insulating paper is provided on the circumferential side of several indentation segments 3 along the circumferential direction. Design the indentation position of the insulating paper according to the size of the stator slot, select a gasket 4 with a corresponding thickness and place it between two adjacent indentation segments 3. Use the connecting piece to assemble several indentation segments 3 and the gasket 4 into one body, and ensure that the indentation part on the circumferential side of the assembled indentation wheel corresponds to the indentation position of the insulating paper, so as to reduce the dimensional deviation.

[0039] It should be noted that for the production of the split indentation wheel, first process the required indentation wheel according to the size drawing, and then cut the indentation wheel into several indentation segments 3 at intervals along its axial direction. A gasket 4 can be selectively arranged between two adjacent indentation segments 3. The gasket 4 can be made with different thicknesses, so as to accurately adjust the size of the indentation of the indentation wheel, reduce the dimensional deviation, reduce the generation of debris, and improve the indentation quality.

[0040] Specifically, a plurality of threaded holes are provided on the indentation segment 3, and a plurality of through holes are provided on the gasket 4. In this embodiment, three threaded holes are provided on the indentation segment 3, and three through holes are provided on the gasket 4. The three threaded holes on each indentation segment 3 and the three through holes on each gasket 4 are arranged in one-to-one correspondence to form a plurality of threaded hole groups. The connecting piece includes a plurality of locking bolts 5. The number of locking bolts 5 is the same as the number of threaded holes provided on the indentation segment 3 and the number of through holes provided on the gasket 4. Therefore, three locking bolts 5 are also provided. The three locking bolts 5 are threadedly connected to the three threaded hole groups in one-to-one correspondence to realize the assembly of the indentation wheel. The structure is simple and easy to assemble and disassemble, which is convenient for the operator to replace the gasket 4.

[0041] In other embodiments, the number of the threaded hole groups and the locking bolts 5 can also be set to one, two, four, five or even more. The number of them is not specifically limited in this embodiment. And, in other embodiments, threaded holes can also be provided on the gasket 4 in the same way as on the indentation segment 3.

[0042] More specifically, a counterbore 33 communicating with the threaded hole is provided on the end face of the indentation segment 3 on one side of the indentation wheel. The head of the locking bolt 5 is sunk into the counterbore 33, and the rod part of the locking bolt 5 does not protrude from the other side of the indentation wheel. With such a setting, it can be ensured that the end of the indentation wheel is flat, and there is no component protruding from the end of the indentation wheel that affects the mutual cooperation of the male wheel 1 and the female wheel 2, and the practicability is good.

[0043] In addition, the indentation portion includes an indentation protrusion 21 and an indentation groove 11. One of the indentation protrusion 21 and the indentation groove 11 is provided on the circumferential side of the indentation section 3 of the male wheel 1, and the other is provided on the circumferential side of the indentation section 3 of the female wheel 2. Preferably, in this embodiment, the indentation groove 11 is provided on the female wheel 2, and the indentation protrusion 21 is provided on the male wheel 1.

[0044] In other embodiments, the indentation groove 11 may be provided on the male wheel 1, and the indentation protrusion 21 may be provided on the female wheel 2. This embodiment does not make specific limitations in this regard.

[0045] In addition, two guiding portions are provided on the indentation sections 3 at both ends of the female wheel 2, that is, the diameters of the indentation sections 3 at both ends of the female wheel 2 are larger than the diameters of the indentation sections 3 in the middle part thereof.

[0046] Obviously, the above-mentioned embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. An indentation device, characterized in that, It includes an indentation wheel. The indentation wheel is of a split structure. The indentation wheel includes a number of indentation segments (3). A spacer (4) is selectively provided between two adjacent indentation segments (3). Each of the indentation segments (3) and each of the spacers (4) of the indentation wheel are coaxially arranged. The diameter of the spacer (4) is less than or equal to the diameter of the indentation segment (3). A connecting member is detachably connected between each of the indentation segments (3) and each of the spacers (4). Along the circumferential direction of the circumferences of a number of the indentation segments (3), there are indentation portions that can form indentations on the insulating paper.

2. The indentation device according to claim 1, characterized in that, A number of threaded holes are provided on the indentation segments (3) and / or the spacers (4). A number of threaded holes on each of the indentation segments (3) and / or each of the spacers (4) are arranged in one-to-one correspondence to form a number of threaded hole groups. The connecting member includes a number of locking bolts (5). The number of locking bolts (5) is in threaded connection with a number of the threaded hole groups in one-to-one correspondence.

3. The indentation device according to claim 2, wherein The number of the threaded hole groups and the locking bolts (5) is set to three.

4. The indentation device according to claim 2, characterized in that, On the end face of the indentation segment (3) on one side of the indentation wheel, there is a counterbore (33) communicating with the threaded hole. The head of the locking bolt (5) is countersunk in the counterbore (33).

5. The indentation device according to any one of claims 1-4, characterized in that, There are two indentation wheels, one is a male wheel (1), and the other is a female wheel (2). The circumferences of the male wheel (1) and the female wheel (2) mesh with each other and have a gap through which the insulating paper can pass.

6. The indentation device according to claim 5, characterized in that, The indentation portion includes an indentation protrusion (21) and an indentation groove (11). One of the indentation protrusion (21) and the indentation groove (11) is provided on the circumference of the indentation segment (3) of the male wheel (1), and the other is provided on the circumference of the indentation segment (3) of the female wheel (2).

7. The indentation device according to claim 5, wherein, The diameters of the indentation segments (3) at both ends of the male wheel (1) or the female wheel (2) are greater than the diameters of the indentation segments (3) in the middle part thereof.

8. The indentation device according to claim 5, characterized in that, A first mounting shaft (12) that rotates synchronously is coaxially connected to the male wheel (1). A second mounting shaft (22) that rotates synchronously is coaxially connected to the female wheel (2). A driving wheel (13) and a driven wheel (23) are selectively provided on the first mounting shaft (12) and the second mounting shaft (22). The driving wheel (13) and the driven wheel (23) mesh with each other. A driving member for driving its rotation is connected to the first mounting shaft (12) or the second mounting shaft (22) connected with the driving wheel (13).

9. The indentation device according to claim 8, wherein, Key grooves (6) are provided on the inner walls of the male wheel (1) and the female wheel (2). Flat keys adapted to be inserted into the key grooves (6) are provided on the circumferences of the first mounting shaft (12) and the second mounting shaft (22).

10. The indentation device according to claim 8, characterized in that, Tightening nuts (7) for fixing the male wheel (1) or the female wheel (2) are respectively in threaded connection at both ends of the first mounting shaft (12). Tightening nuts (7) for fixing the male wheel (1) or the female wheel (2) are also respectively in threaded connection at both ends of the second mounting shaft (22).

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