Motor stator shrinkage fit device

Abstract

The utility model provides a motor stator hot jacket device which comprises a sleeving assembly. The sleeving assembly is provided with a base, a first positioning guide column, a second positioning guide column, a stator clamp and a shell clamp. The base is horizontally arranged; the first positioning guide column and the second positioning guide column are vertically arranged and are connected to the base; the stator clamp is connected to the base and located between the first positioning guide column and the second positioning guide column, and the two stators are connected to the stator clamp. The shell clamp is detachably connected with the first positioning guide column and the second positioning guide column, and the two shells are connected to the lower portion of the shell clamp. Wherein the shell clamp (15) is provided with a positioning block (154), and the positioning block (154), a bearing hole of an inner cavity of the shell (40) and the stator (30) are coaxial. According to the utility model, the motor comprising two sets of shells and stators can be subjected to hot jacket at the same time, the operation difficulty is reduced, and the hot jacket error is reduced.

Description

Technical Field

[0001] The utility model relates to the field of motor preparation, in particular to a motor stator shrink-fit device. Background Art

[0002] A motor is a device that converts electrical energy, thermal energy or chemical energy into mechanical energy and is widely used in various equipment and machinery.

[0003] At present, when assembling the shell and stator of motor samples, a shrink fitting process is required. That is, the shell is first heated to a certain high temperature (for example: 250°C), and then assembled together with the stator according to the position required for assembly. However, some motors include two sets of shells and stators, and the two shells are usually fixedly connected and have a fixed positional relationship. The existing shrink fitting device cannot shrink fit two sets of shells and stators at the same time. It is cumbersome to shrink fit each set of shells and stators separately, and the error is large.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of this, the utility model provides a motor stator shrink fitting device to at least solve the problem that the shrink fitting operation of a motor including two sets of housings and a stator is complicated and has large errors.

[0006] The utility model provides a motor stator shrink-fit device, comprising a sleeve assembly;

[0007] The sleeve assembly comprises a base, a first positioning guide column, a second positioning guide column, a stator clamp and a housing clamp;

[0008] The base is arranged horizontally;

[0009] The first positioning guide column and the second positioning guide column are vertically arranged and connected to the base;

[0010] The stator fixture is connected to the base and is located between the first positioning guide column and the second positioning guide column, and two stators are connected to the stator fixture;

[0011] The housing clamp is detachably connected to the first positioning guide column and the second positioning guide column, and two housings are connected under the housing clamp;

[0012] The housing fixture (15) has a positioning block (154), and the positioning block (154), the bearing hole in the inner cavity of the housing (40), and the stator (30) are coaxial.

[0013] The utility model designs a shrinkage fitting device for a motor including two sets of housings and stators, so that the two sets of housings and stators can be shrinkage fitted simultaneously, thereby reducing operation difficulty and shrinkage fitting error.

[0014] In some embodiments, the base has two first positioning holes penetrating the base, and at least two positioning pins protruding from the upper surface of the base.

[0015] The first positioning hole and the positioning pin on the base ensure that the first positioning guide column, the second positioning guide column and the stator fixture can be accurately installed on the base, thereby realizing the precise positioning of the housing and the stator in the shrink-fit device. The use of the positioning hole and the positioning pin makes the installation and removal of the guide column faster and more convenient, reduces the time and effort of manual adjustment, reduces the complexity of operation, and improves assembly efficiency.

[0016] In some embodiments, the first positioning guide column and the second positioning guide column respectively cooperate with the base pin hole through the first positioning hole; and the diameter of the first positioning guide column is smaller than that of the second positioning guide column.

[0017] The first positioning guide pin and the second positioning guide pin achieve precise positioning by cooperating with the base pin hole. This design ensures that the guide pins can accurately align with the corresponding positions during the assembly process, preventing misalignment and deviation, thereby improving assembly accuracy and stability. Since the diameter of the first positioning guide pin is smaller than that of the second positioning guide pin, the design of different diameters prevents the guide pins from being inserted incorrectly and in the wrong direction during assembly. This differentiated design ensures that assemblers can quickly and accurately identify and install each guide pin, improving the accuracy and efficiency of the assembly process.

[0018] In some embodiments, the stator clamp has a first table top, the first table top has at least two second positioning holes, and the second positioning holes correspond one-to-one to the positioning pins; the first table top and the base cooperate through the second positioning holes and the positioning pin holes.

[0019] The one-to-one matching of the second positioning hole on the first table of the stator clamp and the positioning pin on the base ensures the accurate positioning of the stator clamp on the base. This design enables the stator to be accurately installed in the specified position, reduces installation errors, and improves assembly accuracy. The matching of the second positioning hole and the positioning pin provides stable support and fixation to prevent the stator clamp from moving or offsetting during the assembly process. This stability ensures that the stator remains in position during heating and assembly, improving the reliability of the entire device. The precise matching of the pin hole makes the installation and removal of the stator clamp easier and faster, reduces the time and difficulty of manual adjustment, and improves assembly efficiency. At the same time, the design of the positioning hole and the positioning pin makes the assembly process more intuitive and easy to operate.

[0020] In some embodiments, the stator clamp has at least one stator profiling block, which is located on the first table and matches the stator; the stator profiling block has at least one support block, a transmission block and a screw; the support block is located inside the stator profiling block and connected to the transmission block; the transmission block is located inside the stator profiling block and connected to the screw; the screw passes through the stator profiling block in a horizontal direction; wherein the support block has a movement stroke driven by the transmission block to expand and contract; the transmission block has another movement stroke driven by the rotation of the screw.

[0021] The stator profiling block is designed according to the shape of the stator to ensure that the stator can be accurately placed on the profiling block. The opening and closing action of the support block can tightly clamp the stator, ensuring the stability and position accuracy of the stator during the assembly process. Through the design of the transmission block and the screw, the support block can realize the automatic opening and closing action. This mechanized operation simplifies the manual adjustment process, improves the assembly efficiency, and reduces the complexity and time cost of manual operation. The combined structure of the stator profiling block, the support block, the transmission block and the screw provides a solid support system, ensuring the stability of the stator during the assembly process, reducing the displacement and looseness caused by vibration or external force, thereby improving the reliability and consistency of the assembly. The design of the stator profiling block can be replaced or adjusted according to different models of stators, and the structure of the support block and the transmission block makes this adjustment more flexible and convenient. By replacing different stator profiling blocks, the device can adapt to stators of various specifications and models, improving the versatility of the device. The rotation of the screw drives the transmission block to move, thereby realizing the opening and closing action of the support block, so that the clamping force and position of the stator can be finely adjusted. This design provides higher assembly accuracy, ensuring a tighter and more accurate fit between the stator and the housing. The mechanized opening and closing mechanism reduces the need for manual intervention and reduces the difficulty of operation.

[0022] In some embodiments, the shell clamp has a second table top, a second side surface and a clamping member; the second table top is horizontally arranged; the second side surface is vertically arranged under the second table top; the clamping member is located under the second table top and is simultaneously connected to the second table top and the second side surface.

[0023] The vertical arrangement of the second table and the second side surface, as well as the connection of the clamping piece, enables the housing clamp to form a stable support frame in structure. Such a design provides higher rigidity and stability, ensuring that the housing will not shake or shift during the heating and assembly process, thereby improving the reliability of assembly. The second table, the second side surface and the clamping piece can be replaced or adjusted to adapt to housings of different specifications and models. This design improves the versatility of the housing clamp, allowing the same device to adapt to multiple types of motor housings, reducing the cost and time of replacing the clamp.

[0024] In some embodiments, the second table has two third positioning holes, and the two third positioning holes respectively cooperate with the first positioning guide column and the second positioning guide column pin hole, so that the shell has a movement stroke downward in the vertical direction and makes the shell and the stator fit in the gap.

[0025] The third positioning hole on the second table cooperates with the first positioning guide post and the second positioning guide post to achieve accurate positioning of the housing. This design ensures the vertical movement trajectory of the housing during assembly, avoids the displacement of the housing position and assembly errors, and improves the accuracy and stability of assembly. The cooperation between the third positioning hole and the guide post ensures that the housing can move along the same trajectory during each assembly process, reduces assembly errors, improves assembly consistency and repeatability, and ensures assembly quality in mass production.

[0026] In some embodiments, the lower surface of the second table has two positioning blocks, and the axial distance between the two positioning blocks, the distance between the bearing holes of the two housing cavities, and the axial distance between the two stators are equal.

[0027] The setting of the positioning block simplifies the alignment steps during the assembly process. The operator only needs to ensure that the positioning block is aligned with the bearing hole in the inner cavity of the housing to achieve accurate positioning of the stator and the housing, reducing the time and difficulty of manual adjustment and improving assembly efficiency. The design of equal spacing between the positioning block, the bearing hole in the inner cavity of the housing, and the stator ensures that the two sets of stators and housings are accurately positioned during the assembly process. This precise positioning reduces assembly errors.

[0028] In some embodiments, the second side surface has at least two bolt through holes, and the bolt through holes are respectively threadedly connected to the clamping member and the housing.

[0029] By providing a bolt through hole on the second side and screwing it with the clamp and the housing, a secure connection is provided. The bolt connection can ensure that the clamp and the housing do not loosen or shift during the assembly process, thereby enhancing the stability of the overall assembly structure. The design of the bolt through hole enables the clamp and the housing to be tightly connected by bolts, thereby avoiding the loosening or falling off problems that may occur in other connection methods. This reliable fixing method improves the safety and reliability of the assembly process.

[0030] In some embodiments, the motor stator shrink fit device further includes: a heating component for heating the housing fixture and the housing in a connected state, and the heating component is a heating box.

[0031] By using a heating box instead of electromagnetic induction heating automation equipment, production costs can be reduced, the heating process can be simplified, and the efficiency of heat shrink sleeves can be improved.

[0032] Compared with the prior art, the utility model has at least the following beneficial effects: by designing a shrink fit device for a motor including two sets of housings and a stator, the two sets of housings and the stator can be shrink fit simultaneously, thereby reducing the difficulty of operation and the shrink fit error.

[0033] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 A three-dimensional structural schematic diagram of a sleeve assembly according to an embodiment of the utility model is shown;

[0036] Figure 2 A schematic diagram showing a heating assembly according to an embodiment of the utility model;

[0037] Figure 3 A schematic diagram showing the connection state of a base and a positioning guide rod according to an embodiment of the utility model;

[0038] Figure 4 A three-dimensional structural schematic diagram of a stator clamp according to an embodiment of the utility model is shown;

[0039] Figure 5 A schematic diagram of a top view of a stator clamp according to an embodiment of the utility model is shown;

[0040] Figure 6 A schematic diagram showing a top view of another stator clamp according to an embodiment of the utility model;

[0041] Figure 7 A schematic cross-sectional structure diagram of a sleeve assembly according to an embodiment of the utility model is shown;

[0042] Figure 8 A schematic diagram showing the front view of a housing clamp according to an embodiment of the utility model;

[0043] Fig. 9 A rear structural schematic diagram showing a housing clamp according to an embodiment of the utility model;

[0044] Fig.10 A schematic bottom view of the structure of a housing clamp according to an embodiment of the utility model is shown;

[0045] Fig.11 A schematic diagram showing the assembly state of a shrink-fit front housing and a stator according to an embodiment of the utility model;

[0046] Fig.12 A schematic diagram showing the assembly state of a shrink-fit rear housing and a stator according to an embodiment of the utility model is shown.

[0047] Reference numerals:

[0048] 10 Sets of components

[0049] 11. Base

[0050] 111 First positioning hole

[0051] 112 Locating pin

[0052] 12 First positioning guide pin

[0053] 13 Second positioning guide pin

[0054] 14 Stator clamp

[0055] 141 First Counter

[0056] 142 Second positioning hole

[0057] 143 stator profile block

[0058] 144 Support block

[0059] 145 Transmission block

[0060] 146 Screw

[0061] 15 Housing clamp

[0062] 151 Second countertop

[0063] 152 Second side

[0064] 153 Clamping parts

[0065] 154 Positioning block

[0066] 155 Bolt through hole

[0067] 156 The third positioning hole

[0068] 20 Heating element

[0069] 30 Stator

[0070] 40 Shell DETAILED DESCRIPTION

[0071] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0072] The words "first", "second" and similar words used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. In addition, in the description of the present invention, the directions or positional relationships indicated by the terms "upper" and "lower" are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention.

[0073] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.

[0074] Figure 1 A three-dimensional structural schematic diagram of a sleeve assembly according to an embodiment of the utility model is shown; Figure 2 A schematic diagram showing a heating assembly according to an embodiment of the utility model; Figure 3 A schematic diagram showing the connection state of a base and a positioning guide rod according to an embodiment of the utility model; Figure 4 A three-dimensional structural schematic diagram of a stator clamp according to an embodiment of the utility model is shown; Figure 5 A schematic diagram of a top view of a stator clamp according to an embodiment of the utility model is shown; Figure 6 A schematic diagram showing a top view of another stator clamp according to an embodiment of the utility model; Figure 7 A schematic cross-sectional structure diagram of a sleeve assembly according to an embodiment of the utility model is shown; Figure 8A schematic diagram showing the front view of a housing clamp according to an embodiment of the utility model;

[0075] Fig. 9 A rear structural schematic diagram showing a housing clamp according to an embodiment of the utility model; Fig.10 A schematic bottom view of the structure of a housing clamp according to an embodiment of the utility model is shown; Fig.11 A schematic diagram showing the assembly state of a shrink-fit front housing and a stator according to an embodiment of the utility model; Fig.12 A schematic diagram showing the assembly state of a shrink-fit rear housing and a stator according to an embodiment of the utility model is shown.

[0076] like Figures 1 to 12 As shown, the utility model provides a motor stator shrink sleeve device, which at least includes: a sleeve assembly 10. The sleeve assembly 10 has a base 11, a first positioning guide column 12, a second positioning guide column 13, a stator clamp 14 and a shell clamp 15; the base 11 is horizontally arranged; the first positioning guide column 12 and the second positioning guide column 13 are vertically arranged and connected to the base 11; the stator clamp 14 is connected to the base 11 and is located between the first positioning guide column 12 and the second positioning guide column 13, and two stators 30 are connected to the stator clamp 14; the shell clamp 15 is detachably connected to the first positioning guide column 12 and the second positioning guide column 13, and two shells 40 are connected under the shell clamp 15; wherein the shell clamp 15 has a positioning block 154, and the positioning block 154, the bearing hole of the inner cavity of the shell 40 and the stator 30 are coaxial. The utility model designs a shrink fitting device for a motor including two sets of housings 40 and stators 30, so that the two sets of housings 40 and stators 30 can be shrink fitted simultaneously, thereby reducing the difficulty of operation and the shrink fitting error.

[0077] In some embodiments, the motor may be a steer-by-wire motor, a motor for a steering system, a motor for a braking system, or the like.

[0078] In some embodiments, the two shells 40 may be fixedly connected to ensure that the relative positions between the shells 40 are fixed.

[0079] In some embodiments, the motor includes multiple shells 40 and stators 30, and the motor stator shrink fitting device shrink fits multiple shells 40 and stators 30 at the same time to further improve shrink fitting efficiency, reduce operation difficulty, and reduce shrink fitting error.

[0080] In some embodiments, the connection or fixing methods of the various parts of the utility model, in addition to those already specifically defined, can be configured to be screwed, riveted, clamped or welded according to specific application conditions.

[0081] In some embodiments, the base 11 has two first positioning holes 111 penetrating the base 11, and at least two positioning pins 112 protruding from the upper surface of the base 11. Specifically, the apertures of the positioning pins 112 may be different. By providing the first positioning holes 111 and the positioning pins 112 on the base 11, it is ensured that the first positioning guide column 12, the second positioning guide column 13 and the stator clamp 14 can be accurately installed on the base 11, thereby achieving precise positioning of the housing 40 and the stator 30 in the shrink fit device. The use of the positioning holes and the positioning pins 112 makes the installation and removal of the guide columns faster and more convenient, reduces the time and effort of manual adjustment, reduces the complexity of the operation, and improves the assembly efficiency.

[0082] In some embodiments, the first positioning guide post 12 and the second positioning guide post 13 respectively cooperate with the pin hole of the base 11 through the first positioning hole 111; the diameter of the first positioning guide post 12 is smaller than that of the second positioning guide post 13. The first positioning guide post 12 and the second positioning guide post 13 achieve precise positioning by cooperating with the pin hole of the base 11. This design ensures that during the assembly process, the guide posts can be accurately aligned with the corresponding positions to prevent misalignment and deviation, thereby improving assembly accuracy and stability. Since the diameter of the first positioning guide post 12 is smaller than that of the second positioning guide post 13, the design of different diameters prevents the guide posts from being inserted incorrectly and in the wrong direction during the assembly process. This differentiated design ensures that the assembler can quickly and accurately identify and install each guide post, thereby improving the accuracy and efficiency of the assembly process.

[0083] In some embodiments, the stator fixture 14 has a first table 141, and the first table 141 has at least two second positioning holes 142, and the second positioning holes 142 correspond to the positioning pins 112 one by one; the first table 141 and the base 11 cooperate through the second positioning holes 142 and the positioning pins 112. Specifically, the apertures of the second positioning holes 142 can be different, and the apertures of the corresponding positioning pins 112 are also different. The second positioning holes 142 on the first table 141 of the stator fixture 14 and the positioning pins 112 on the base 11 are matched one by one, ensuring the accurate positioning of the stator fixture 14 on the base 11. This design enables the stator 30 to be accurately installed in the specified position, reduces the installation error, and improves the assembly accuracy. The cooperation between the second positioning holes 142 and the positioning pins 112 provides stable support and fixation, preventing the stator fixture 14 from moving or offsetting during the assembly process. This stability ensures that the stator 30 remains in position during the heating and assembly process, improving the reliability of the entire device. The precise matching of the pin holes makes the installation and removal of the stator fixture 14 easier and faster, reduces the time and difficulty of manual adjustment, and improves assembly efficiency. At the same time, the design of the positioning holes and the positioning pins 112 makes the assembly process more intuitive and easy to operate.

[0084] In some embodiments, the stator fixture 14 has at least one stator profiling block 143, which is located on the first table 141 and matches the stator 30; the stator profiling block 143 has at least one support block 144, a transmission block 145 and a screw 146; the support block 144 is located inside the stator profiling block 143 and connected to the transmission block 145; the transmission block 145 is located inside the stator profiling block 143 and connected to the screw 146; the screw 146 penetrates the stator profiling block 143 in the horizontal direction; wherein the support block 144 has a movement stroke driven by the transmission block 145 to open and close; the transmission block 145 has another movement stroke driven by the rotation of the screw 146. Specifically, the stator profiling block 143 is designed according to the bottom shape and size of the stator 30, and can quickly and accurately locate the stator 30 in all directions. The support block 144 can be two semicircular blocks, and the transmission block 145 can be a wedge-shaped block. After the wedge-shaped block opens the semicircular blocks, the semicircular blocks are close to the inner wall of the stator 30, so that the stator 30 is firmly positioned and fixed. The stator profiling block 143 is designed according to the shape of the stator 30 to ensure that the stator 30 can be accurately placed on the profiling block. The opening and closing actions of the support block 144 can tightly clamp the stator 30, ensuring the stability and position accuracy of the stator 30 during the assembly process. Through the design of the transmission block 145 and the screw 146, the support block 144 can realize the automatic opening and closing actions. This mechanized operation simplifies the process of manual adjustment, improves assembly efficiency, and reduces the complexity and time cost of manual operation. The combined structure of the stator profiling block 143, the support block 144, the transmission block 145 and the screw 146 provides a solid support system, ensures the stability of the stator 30 during the assembly process, reduces the displacement and looseness caused by vibration or external force, thereby improving the reliability and consistency of assembly. The design of the stator profiling block 143 can be replaced or adjusted according to different models of stators 30, and the structure of the support block 144 and the transmission block 145 makes this adjustment more flexible and convenient. By replacing different stator profiling blocks 143, the device can adapt to stators 30 of various specifications and models, thereby improving the versatility of the device. The screw 146 rotates to drive the transmission block 145 to move, thereby realizing the opening and closing action of the support block 144, so that the clamping force and position of the stator 30 can be finely adjusted. This design provides higher assembly accuracy, ensuring that the fit between the stator 30 and the housing 40 is more rigorous and accurate. The mechanized opening and closing mechanism reduces the need for manual intervention and reduces the difficulty of operation.

[0085] In some embodiments, the housing fixture 15 has a second table 151, a second side 152 and a clamp 153; the second table 151 is horizontally arranged; the second side 152 is vertically arranged below the second table 151; the clamp 153 is located below the second table 151 and is simultaneously connected to the second table 151 and the second side 152. The vertical arrangement of the second table 151 and the second side 152, and the connection of the clamp 153, allow the housing fixture 15 to form a stable support frame in structure. Such a design provides higher rigidity and stability, ensuring that the housing 40 will not shake or shift during heating and assembly, thereby improving the reliability of assembly. The second table 151, the second side 152 and the clamp 153 can be replaced or adjusted to adapt to housings 40 of different specifications and models. This design improves the versatility of the housing fixture 15, allowing the same device to adapt to multiple types of motor housings 40, reducing the cost and time of replacing the fixture.

[0086] In some embodiments, the second table 151 has two third positioning holes 156, and the two third positioning holes 156 cooperate with the pin holes of the first positioning guide column 12 and the second positioning guide column 13, respectively, so that the housing 40 has a movement stroke in the vertical direction and makes the housing 40 and the stator 30 fit in clearance. The third positioning holes 156 on the second table 151 cooperate with the first positioning guide column 12 and the second positioning guide column 13 to achieve precise positioning of the housing 40. This design ensures the vertical movement trajectory of the housing 40 during the assembly process, avoids the displacement of the position of the housing 40 and assembly errors, and improves the accuracy and stability of the assembly. The cooperation between the third positioning holes 156 and the guide columns ensures that the housing 40 can move along the same trajectory during each assembly process, reduces assembly errors, improves the consistency and repeatability of assembly, and ensures the assembly quality in mass production.

[0087] In some embodiments, the lower surface of the second table 151 has two positioning blocks 154, and the axial spacing of the two positioning blocks 154, the spacing of the bearing holes in the inner cavity of the two shells 40, and the axial spacing of the two stators 30 are equal. Specifically, the positioning block 154 can be cylindrical, rectangular, etc., but is not limited to this. The setting of the positioning block 154 simplifies the alignment steps in the assembly process. The operator only needs to ensure that the positioning block 154 is aligned with the bearing hole in the inner cavity of the shell 40 to achieve precise positioning of the stator 30 and the shell 40, reducing the time and difficulty of manual adjustment and improving assembly efficiency. The design of equal spacing between the positioning block 154, the bearing hole in the inner cavity of the shell 40, and the stator 30 ensures that the two sets of stators 30 and the shell 40 are accurately positioned during the assembly process. This precise positioning reduces assembly errors.

[0088] In some embodiments, the second side 152 has at least two bolt holes 155, and the bolt holes 155 are respectively screwed to the clamp 153 and the housing 40. By providing the bolt holes 155 on the second side 152 and screwing them to the clamp 153 and the housing 40, a firm connection is provided. The bolt connection can ensure that the clamp 153 and the housing 40 do not loosen or shift during the assembly process, thereby enhancing the stability of the overall assembly structure. The design of the bolt holes 155 enables the clamp 153 and the housing 40 to be tightly connected by bolts, avoiding the problem of loosening or falling off that may occur in other connection methods. This reliable fixing method improves the safety and reliability of the assembly process.

[0089] In some embodiments, the motor stator heat-shrink sleeve device also includes: a heating component 20, which is used to heat the shell fixture 15 and the shell 40 in a connected state. The heating component 20 is a heating box. Specifically, the heating box can select an existing product. Considering factors such as the size of the motor, the heating temperature of the shell 40, and the heat-shrink sleeve production capacity beat, the Fuqi Lab200 heating box can be selected. The heating box can place four shell fixtures 15 inside at the same time, that is, at least 8 shells 40 are heated at the same time, and the shell fixture 15 and the shell 40 are quickly heated to the heat-shrink sleeve temperature (for example, 250°C) within 40 minutes. By using a heating box instead of electromagnetic induction heating automation equipment, production costs can be reduced, the heating process can be simplified, and the heat-shrink sleeve efficiency can be improved.

[0090] Furthermore, the heat-shrinking process of the motor stator heat-shrinking device of the present application is as follows:

[0091] S110, assembling the housing 40 and the housing fixture 15, and locking them by means of bolts and bolt through holes 155;

[0092] S120, heating the assembled housing 40 and housing fixture 15 to a preset temperature by means of the heating assembly 20;

[0093] S130, assembling the stator 30 and the stator profiling block 143 of the stator fixture 14, rotating the screw rod 146, and spreading the support block 144 through the transmission block 145, and making it close to the inner wall of the stator 30 and fixing the stator 30;

[0094] S140, placing the assembled stator 30 and stator fixture 14 on the base 11 and assembling them;

[0095] S150, assembling the heated housing 40 and housing fixture 15 with the first positioning guide pillar 12 and the second positioning guide pillar 13;

[0096] S160, based on the first positioning guide pillar 12 and the second positioning guide pillar 13, the housing 40 is slid down to a preset position so that the stator 30 enters the inner cavity of the housing 40;

[0097] S170 , the housing 40 and the housing fixture 15 are left to cool, so as to complete the shrink fitting of the stator 30 and the housing 40 .

[0098] It is worth noting that S110 to S170 are merely step numbers, which are used to facilitate reference and avoid text duplication, rather than to limit the order of implementation of the steps of the method. In other embodiments, the above steps of the process flow may also be written in an alternate order, and are not limited thereto.

[0099] In summary, the motor stator shrink-fit device provided by the utility model can shrink-fit the two sets of housings and stators at the same time by designing the shrink-fit device for the motor including two sets of housings and stators, thereby reducing the difficulty of operation and the shrink-fit error.

[0100] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A motor stator shrink-fit device, characterized in that: include: A sleeve assembly (10); The sleeve assembly (10) comprises a base (11), a first positioning guide column (12), a second positioning guide column (13), a stator clamp (14) and a housing clamp (15); The base (11) is arranged horizontally; The first positioning guide column (12) and the second positioning guide column (13) are vertically arranged and connected to the base (11); The stator clamp (14) is connected to the base (11) and is located between the first positioning guide column (12) and the second positioning guide column (13); two stators (30) are connected to the stator clamp (14); The housing clamp (15) is detachably connected to the first positioning guide column (12) and the second positioning guide column (13), and two housings (40) are connected under the housing clamp (15); The housing fixture (15) has a positioning block (154), and the positioning block (154), the bearing hole in the inner cavity of the housing (40), and the stator (30) are coaxial.

2. The motor stator shrink-fit device according to claim 1, characterized in that: The base (11) has two first positioning holes (111) penetrating the base (11), and at least two positioning pins (112) protruding from the upper surface of the base (11).

3. The motor stator shrink-fit device according to claim 2, characterized in that: The first positioning guide column (12) and the second positioning guide column (13) respectively cooperate with the pin hole of the base (11) through the first positioning hole (111); The diameter of the first positioning guide column (12) is smaller than that of the second positioning guide column (13).

4. The motor stator shrink-fit device according to claim 2, characterized in that: The stator clamp (14) has a first table surface (141), the first table surface (141) has at least two second positioning holes (142), and the second positioning holes (142) correspond one-to-one to the positioning pins (112); The first table top (141) and the base (11) are matched via the second positioning hole (142) and the positioning pin (112) hole.

5. The motor stator shrink-fit device according to claim 4, characterized in that: The stator fixture (14) has at least one stator profiling block (143), wherein the stator profiling block (143) is located on the first table surface (141) and matches the stator (30); The stator profiling block (143) has at least one supporting block (144), a transmission block (145) and a screw rod (146); The support block (144) is located inside the stator contour block (143) and is connected to the transmission block (145); The transmission block (145) is located inside the stator contour block (143) and is connected to the screw rod (146); The screw rod (146) passes through the stator profile block (143) in a horizontal direction; The support block (144) has a movement stroke driven by the transmission block (145) to be expanded and retracted; the transmission block (145) has another movement stroke driven by the rotation of the screw rod (146).

6. The motor stator shrink-fit device according to claim 1, characterized in that: The housing clamp (15) comprises a second table top (151), a second side surface (152) and a clamping member (153); The second table surface (151) is arranged horizontally; The second side surface (152) is vertically arranged below the second table surface (151); The clamping member (153) is located below the second table top (151), and is simultaneously connected to the second table top (151) and the second side surface (152).

7. The motor stator shrink-fit device according to claim 6, characterized in that: The second table (151) has two third positioning holes (156), and the two third positioning holes (156) respectively cooperate with the pin holes of the first positioning guide column (12) and the second positioning guide column (13), so that the housing (40) has a movement stroke in a vertical downward direction and enables the housing (40) and the stator (30) to be loosely matched.

8. The motor stator shrink-fit device according to claim 6, characterized in that: The lower surface of the second table (151) has two positioning blocks (154), and the axial distance between the two positioning blocks (154), the distance between the bearing holes in the inner cavities of the two housings (40), and the axial distance between the two stators (30) are equal.

9. The motor stator shrink-fit device according to claim 6, characterized in that: The second side surface (152) has at least two bolt through holes (155), and the bolt through holes (155) are respectively screwed to the clamping member (153) and the housing (40).

10. The motor stator shrink-fit device according to claim 1, characterized in that: Also includes: A heating component (20) is used to heat the shell fixture (15) and the shell (40) in a connected state, and the heating component (20) is a heating box.

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