CN221058080U

CN221058080U - Spliced torque motor

Info

Publication number: CN221058080U
Application number: CN202322718387.1U
Authority: CN
Inventors: 孙孟祥; 蔡东; 许锦铭; 邹鹏; 李战胜
Original assignee: Suzhou Ticbel Direct Drive Motor Co ltd
Current assignee: Suzhou Ticbel Direct Drive Motor Co ltd
Filing date: 2023-10-10
Publication date: 2024-05-31
Anticipated expiration: 2033-10-10

Abstract

The utility model discloses a spliced torque motor, which comprises a rotor and a stator, wherein: the rotor and the stator are coaxially arranged, extend along the axial direction, are sequentially arranged along the radial direction, and are vertical to the axial direction. The rotor is an annular rotor formed by splicing a plurality of rotor arc blocks along the circumferential direction, and each rotor arc block is a wedge-shaped body and is sequentially reduced from top to bottom along the axial direction. The stator is an annular stator formed by splicing a plurality of stator arc blocks along the circumferential direction, and each stator arc block is internally provided with a plurality of windings, and the stator is circumferentially and axially surrounded. The stator and the rotor are of a spliced structural design, the rotor of the spliced torque motor is not required to be connected with a central shaft, the rotor is directly connected with a rotating shaft above the rotor during installation, large-size volume is not required, each rotor arc block is a wedge body, the arrangement is sequentially reduced from top to bottom, and the rotational inertia and the weight of the motor are further reduced.

Description

Spliced torque motor

Technical Field

The utility model relates to the technical field of motors, in particular to a spliced torque motor.

Background

The torque motor is a special motor with more poles, can still continuously run at low speed even in locked-rotor, and cannot cause damage to the motor. The main function of the motor stator is to generate a rotating magnetic field, and the main function of the motor rotor is to be cut by magnetic force lines in the rotating magnetic field so as to output current. In the prior art, the motor mostly uses the center as an output point, the rotor is connected with the center rotating shaft, the size is larger, and the moment of inertia is larger, so that the running efficiency and the stability of the motor are influenced.

Disclosure of utility model

In order to overcome the above disadvantages, the present utility model is directed to a spliced torque motor, so as to solve the problem that in the prior art, the motor is usually centered at an output point, and a rotor is connected with a central rotating shaft, so that the volume is larger, resulting in larger moment of inertia.

In order to achieve the above purpose, the technical scheme adopted by the utility model is a spliced torque motor, which comprises a rotor and a stator, wherein: the rotor and the stator are coaxially arranged, extend along the axial direction, are sequentially arranged along the radial direction, and are perpendicular to the axial direction. The rotor is an annular rotor formed by splicing a plurality of rotor arc blocks along the circumferential direction, each rotor arc block is wedge-shaped along the transverse section of the axial direction, and the width of each rotor arc block is sequentially reduced from top to bottom along the axial direction. The stator is an annular stator formed by splicing a plurality of stator arc blocks along the circumferential direction, a plurality of windings are arranged in each stator arc block, and the circumferential direction surrounds the axial direction.

The spliced torque motor provided by the utility model has the advantages that the stator and the rotor are of a spliced structural design, the rotor is formed by splicing a plurality of rotor arc blocks along the circumferential direction, the stator is formed by splicing a plurality of stator arc blocks along the circumferential direction, the rotor arc blocks and the stator arc blocks can be punched independently, the occurrence of waste materials is reduced, the consumption materials are saved, the spliced structure is convenient for the installation of the torque motor, the torque opposite to the running direction can be provided for the torque motor, and the spliced torque motor can be used in a device with frequent forward and reverse rotation. The rotor of concatenation formula torque motor need not to be connected with the center pin, and the direct axis of rotation with the top is connected during the installation, need not jumbo size volume to every rotor arc piece is the wedge, reduces in proper order from the top down and sets up, further reduces moment of inertia and motor self weight.

By adopting the technical scheme, the center angle of each rotor arc block is 45 degrees. The circle center angle of each stator arc block is 45 degrees.

In some embodiments, the center angle of the rotor arc blocks and the stator arc blocks is 45 degrees, that is, the rotor is provided with 8 rotor arc blocks, and the stator is provided with 8 stator arc blocks. The number of the rotor arc blocks and the stator arc blocks is too much or too little, the problems of infirm installation and poor consistency exist, the number of the rotor arc blocks and the stator arc blocks is too little, the size of the single rotor arc blocks and the size of the stator arc blocks are increased, consumable materials in the machining process can be increased, and the thickness is required to be increased to ensure the stability in the running process, so that the 8 rotor arc blocks and the 8 stator arc blocks arranged by the spliced torque motor can be effectively balanced.

By adopting the technical scheme, each stator arc block is provided with the step part extending along the radial direction along the bottom of one side of the rotor away from the radial direction. Each step portion is provided with a plurality of connecting holes at intervals along the circumferential direction for installation and fixation.

In some embodiments, a step is provided on a side of each stator arc away from the rotor, and a plurality of connection holes are provided along the circumference Xiang Jun at intervals for installation and fixation.

By adopting the technical scheme, each step part is provided with a cooling medium inlet and a cooling medium outlet along one side of the radial direction far away from the stator arc-shaped block, and the cooling medium inlets and the cooling medium outlets of the adjacent stator arc-shaped blocks are connected through pipelines. And cooling channels are arranged in each stator arc block and are respectively communicated with a conveying cooling medium inlet and a conveying cooling medium outlet for conveying cooling medium.

In some embodiments, a cooling channel is arranged inside each stator arc block and is respectively communicated with a conveying cooling medium inlet and a conveying cooling medium outlet, and the stator body and the windings are cooled by the cooling medium. And the cooling medium inlets and the cooling medium outlets of the adjacent stator arc blocks are connected through pipelines, so that the cooling medium sequentially flows through the plurality of stator arc blocks to perform heat dissipation treatment.

By adopting the technical scheme, each stator arc block is further provided with a connecting end, the connecting end is arranged above the step part, and the adjacent stator arc connecting ends are connected through motor wires and are used for connecting the plurality of stator arc blocks in series.

In some embodiments, a plurality of stator arc segments are connected in series with each other by motor wires, thereby forming a complete ring stator.

By adopting the technical scheme, along the radial direction, one side of the stator, which is far away from the rotor, is wound with a plurality of cooling fins. The cooling fin extends along the axial direction and is received by the plurality of step parts.

In some embodiments, the side of the stator away from the rotor is provided with cooling fins at intervals along the circumferential direction, and the spliced torque motor performs auxiliary heat dissipation through the cooling fins.

By adopting the technical scheme, a plurality of fixing holes are formed in the top of each rotor arc block and are used for installation and fixation.

In some embodiments, a plurality of fixing holes are formed in the top of the rotor arc-shaped block, and the rotor arc-shaped block is connected with the rotating shaft through the plurality of fixing holes.

Drawings

FIG. 1 is a perspective view of one embodiment of a spliced torque motor of the present utility model;

FIG. 2 is a schematic view of a rotor arc block of an embodiment of a split torque motor according to the present utility model;

In the figure:

1-a spliced torque motor;

2-rotor; 20-rotor arc blocks; 21-fixing holes;

3-stator; 30-stator arc blocks; 31-a step; 32-connecting holes; 33-cooling medium inlet; 34-a cooling medium outlet; 35-connecting end;

4-heat sink.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

Referring to fig. 1 and 2, fig. 1 shows a perspective view of a spliced torque motor 1 according to an embodiment of the present utility model; fig. 2 shows a schematic structural diagram of a rotor arc block 20 in a spliced torque motor 1 according to an embodiment of the present utility model.

In some embodiments, referring to fig. 1 and 2, the present application provides a spliced torque motor 1, which includes a rotor 2 and a stator 3, wherein: the rotor 2 and the stator 3 are coaxially arranged, extend in the axial direction (shown in the Z direction in fig. 1), and are sequentially arranged in the radial direction (shown in the λ direction in fig. 1), and the radial direction (shown in the λ direction in fig. 1) is perpendicular to the axial direction (shown in the Z direction in fig. 1). The rotor 2 is an annular rotor formed by splicing a plurality of rotor arc blocks 20 along the circumferential direction (shown in the theta direction in fig. 1), the cross section of each rotor arc block 20 along the axial direction (shown in the Z direction in fig. 1) is a wedge, and the width of each rotor arc block is sequentially reduced from top to bottom along the axial direction (shown in the Z direction in fig. 1). The stator 3 is an annular stator formed by splicing a plurality of stator arc blocks 30 along the circumferential direction (shown in the theta direction in fig. 1), a plurality of windings are arranged in each stator arc block 30, and the circumferential direction (shown in the theta direction in fig. 1) surrounds the axial direction (shown in the Z direction in fig. 1).

According to the spliced torque motor 1 provided by the application, the stator 3 and the rotor 2 are of a spliced structural design, the rotor 2 is formed by splicing a plurality of rotor arc blocks 20 along the circumferential direction (shown in the theta direction in fig. 1), the stator 3 is formed by splicing a plurality of stator arc blocks 30 along the circumferential direction (shown in the theta direction in fig. 1), the rotor arc blocks 20 and the stator arc blocks 30 can be punched independently, waste materials are reduced, consumption materials are saved, the spliced structure is also convenient for mounting the torque motor, torque opposite to the running direction can be provided for the torque motor, and the spliced torque motor can be used in a device with frequent forward and reverse rotation. The rotor 2 of the spliced torque motor 1 is not required to be connected with a central shaft, is directly connected with a rotating shaft above during installation, does not need a large-size volume, each rotor arc block 20 is a wedge body, the arrangement is sequentially reduced from top to bottom, and the wide and short rotor arc blocks 20 have smaller rotational inertia, so that the rotational inertia and the weight of the motor are further reduced.

In some embodiments, referring to fig. 1 and 2, the center angle of each rotor arc 20 is 45 °. The center angle of each stator arc 30 is 45 °.

Illustratively, the center angle of the rotor arc 20 and the stator arc 30 is 45 °, i.e. the rotor 2 is provided with 8 rotor arc 20 and the stator 3 is provided with 8 stator arc 30. The number of the rotor arc blocks 20 and the stator arc blocks 30 is too large or too small, corresponding problems exist, the number is too large, the installation is unstable, the consistency is poor, the number is too small, the size of each rotor arc block 20 and each stator arc block 30 is increased, consumable materials in the machining process can be increased, the thickness needs to be increased, the stability in operation is guaranteed, and therefore the problem that the 8 rotor arc blocks 20 and the 8 stator arc blocks 30 arranged in the spliced torque motor 1 can be effectively balanced is solved.

In some embodiments, referring to fig. 1 and 2, the bottom of the side of each stator arc 30 radially (shown in the λ direction in fig. 1) away from the rotor 2 is provided with a step 31 extending radially (shown in the λ direction in fig. 1). Each of the stepped portions 31 is provided with a plurality of connection holes 32 at intervals in the circumferential direction (indicated by the θ direction in fig. 1) for mounting and fixing.

Illustratively, a stepped portion 31 is provided on a side of each stator arc 30 away from the rotor 2, and a plurality of connection holes 32 are provided at intervals in the circumferential direction (indicated by θ in fig. 1) of each stepped portion 31 for mounting and fixing, for example, bolting with an external mounting table.

In some embodiments, referring to fig. 1 and 2, each stepped portion 31 is provided with a cooling medium inlet 33 and a cooling medium outlet 34 on a side radially (shown in a lambda direction in fig. 1) away from the stator arc 30, the cooling medium inlets 33 and the cooling medium outlets 34 of adjacent stator arc 30 are connected by an insulating tube,

A cooling passage is provided inside each stator arc 30 and communicates with a delivery cooling medium inlet 33 and a delivery cooling medium outlet 34, respectively, for delivery of cooling medium.

Illustratively, each stator segment 30 is internally provided with cooling channels and communicates with a delivery cooling medium inlet 33 and a delivery cooling medium outlet 34, respectively, through which the stator 3 body and windings are cooled. The cooling medium inlets 33 and the cooling medium outlets 34 of the adjacent stator arc blocks 30 are connected in a pipeline manner, a cooling medium inlet 33 and a cooling medium outlet 34 are selected as a total water inlet end and a total water outlet end, the total water inlet end and the total water outlet end are respectively communicated with an external water system through water pipes, the water flows to cooling channels inside the stator arc blocks 30 through insulating pipes respectively, and after heat is absorbed, the water is discharged into the external water system of the motor through the total water outlet end, so that cooling is finished. The cooling medium used in the embodiment is water, and the heat dissipation performance of the water is far higher than that of air and hydrogen, so that the cooling medium is more suitable for heat dissipation treatment of a motor.

In some embodiments, referring to fig. 1 and 2, each stator arc 30 is further provided with a connection end 35, the connection end 35 is disposed above the step 31, and the connection ends 35 of adjacent stator 3 arcs are connected by a motor line for connecting the plurality of stator arc 30 in series.

Illustratively, a plurality of stator arc segments 30 are connected in series with one another by motor wires to form a complete annular stator.

In some embodiments, referring to fig. 1 and 2, a plurality of cooling fins 4 are wound around a side of the stator 3 remote from the rotor 2 in a radial direction (shown in a λ direction in fig. 1). The fin 4 extends in the axial direction (shown in the Z direction in fig. 1) and is received by the plurality of stepped portions 31.

Illustratively, a plurality of cooling fins 4 are arranged at intervals along the circumferential direction (shown in the θ direction in fig. 1) on one side of the stator 3 away from the rotor 2, the cooling fins 4 are arranged at intervals along the axial direction (shown in the Z direction in fig. 1), and the spliced torque motor 1 performs auxiliary cooling through the plurality of cooling fins 4.

In some embodiments, referring to fig. 1 and 2, a plurality of fixing holes 21 are provided at the top of each rotor arc block 20 for installation and fixation.

The rotor arc-shaped block is characterized in that a plurality of fixing holes are formed in the top of the rotor arc-shaped block, the rotor arc-shaped block is connected with the rotating shaft through bolts, the upper end of the rotating shaft is connected with the rotating table, and the rotating table is driven to rotate through rotation of the rotor.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a concatenation formula torque motor which characterized in that includes rotor and stator, wherein:

the rotor and the stator are coaxially arranged, extend along the axial direction and are sequentially arranged along the radial direction, and the radial direction is perpendicular to the axial direction;

The rotor is an annular rotor formed by splicing a plurality of rotor arc blocks along the circumferential direction, the cross section of each rotor arc block along the axial direction is wedge-shaped, and the width of each rotor arc block is sequentially reduced from top to bottom along the axial direction;

The stator is an annular stator formed by splicing a plurality of stator arc blocks along the circumferential direction, a plurality of windings are arranged in each stator arc block, and the circumferential direction surrounds the axial direction.

2. The spliced torque motor of claim 1, wherein the center angle of each rotor arc is 45 °; the circle center angle of each stator arc block is 45 degrees.

3. The spliced torque motor of claim 1, wherein a bottom of a side of each stator arc block, which is far from the rotor in the radial direction, is provided with a step extending in the radial direction; each step portion is provided with a plurality of connecting holes at intervals along the circumferential direction for installation and fixation.

4. A spliced torque motor as claimed in claim 3, wherein each of the stepped portions is provided with a cooling medium inlet and a cooling medium outlet on a side of the stepped portion which is away from the stator arc blocks in the radial direction, and the cooling medium inlets and the cooling medium outlets of adjacent stator arc blocks are connected by pipes; and cooling channels are arranged in each stator arc block and are respectively communicated with a conveying cooling medium inlet and a conveying cooling medium outlet for conveying cooling medium.

5. A spliced torque motor as claimed in claim 3, wherein each stator arc block is further provided with a connection end provided above the step portion, adjacent stator arc connection ends being connected by a motor wire for connecting the plurality of stator arc blocks in series.

6. A spliced torque motor as claimed in claim 3, wherein a side of the stator remote from the rotor is provided with a plurality of cooling fins in a wound manner in the radial direction; the cooling fin extends along the axial direction and is received by the plurality of step parts.

7. The spliced moment motor of claim 1, wherein a plurality of fixing holes are formed in the top of each rotor arc block for installation and fixing.