Motor

Abstract

The utility model discloses a motor, which is applied to a silking machine and comprises a hollow shaft, a rotor and a stator, the hollow shaft is installed in a shell, the rotor is of a circular ring structure and is installed on the hollow shaft in an interference mode, the stator is installed on the outer side of an outer ring of the rotor, the stator is composed of an upper stator and a lower stator, and the upper stator and the lower stator are detachably connected. The upper stator and the lower stator are both of a semicircular structure, a plurality of positioning holes are formed in the stators, and the upper stator and the lower stator are positioned by the positioning pins through the positioning holes and are connected through bolts. According to the motor, the stator is composed of the upper stator and the lower stator, the upper stator and the lower stator are detachably connected, the upper stator and the lower stator are each of a semicircular structure, an operator can directly detach the upper stator and the lower stator so that all parts in the motor can be conveniently installed and maintained, a transmission chain between the motor and the silking machine can be shortened, and the service life of the motor is prolonged. Therefore, the high-speed rotation stability of the motor and the convenience of quick mounting and dismounting are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric motors, in particular to an electric motor. Background Art

[0002] A laying head is a device used to produce metal wire. Through various processes and equipment, metal raw materials (such as steel or aluminum) are processed into wires of specific diameters. It is widely used in industries such as construction, manufacturing, electronics, and automobiles.

[0003] In the related technology, the traditional spinning machine and the electric motor are in a separate structure. The spinning machine usually adopts a horizontal motor side drive arrangement. The motor drives the entire equipment through a coupling and a bevel gear, thereby promoting the operation of the spinning machine; another new type of spinning machine is an integrated structure of the electric motor and the spinning machine. The motor is directly integrated into the spinning machine, and the rotor of the motor is directly connected to the hollow shaft, so that the spinning machine works.

[0004] However, the stator on this motor is an integral structure and is suspended on the hollow shaft, which can easily cause the hollow shaft, rotor, stator, bearings on the hollow shaft and other components to slide and collide during installation or disassembly, thereby increasing the difficulty of installation and disassembly, which is not conducive to subsequent maintenance work by operators, thereby affecting the safety and service life of the spinning machine. Utility Model Content

[0005] In order to solve the problems of the traditional integral stator structure being prone to sliding and collision, as well as being inconvenient to install and disassemble, the utility model provides an electric motor, and the technical solutions adopted are as follows:

[0006] An electric motor, applied to a spinning machine, comprising:

[0007] A hollow shaft is installed in the housing;

[0008] The rotor has a circular ring structure and is interference-mounted on the hollow shaft;

[0009] A stator is mounted on the outer side of the outer ring of the rotor, the stator consisting of an upper stator and a lower stator, and the upper stator and the lower stator are detachably connected;

[0010] Wherein, the upper stator and the lower stator are both semicircular structures, and the stator has a plurality of positioning holes. Positioning pins pass through the plurality of positioning holes to position the upper stator and the lower stator relative to each other and connect them with bolts.

[0011] In some embodiments, the lower stator is located at the bottom of the housing and connected by bolts, and the upper stator is located on top of the lower stator.

[0012] In some embodiments, the inner diameter of the stator is larger than the outer diameter of the rotor, and the inner diameter of the stator is 500 mm; and / or the inner diameter of the rotor is 300 mm, and the outer diameter of the rotor is 498 mm-499 mm.

[0013] In some embodiments, there is a first gap between the stator and the rotor, and the distance of the first gap is 1-2 mm; and / or,

[0014] A second gap is provided between the rotor and the hollow shaft, and the second gap is a negative gap, so that the rotor and the hollow shaft are interference-fitted and key-connected.

[0015] In some embodiments, an oil outlet and an oil inlet are provided on the outer ring side walls of the upper stator and the lower stator;

[0016] Oil grooves are provided on both sides of the rotor, and the oil grooves are used to store lubricating oil. The oil outlet and the oil inlet are connected to the oil grooves through oil channels.

[0017] In some embodiments, the rotor is interference fit and key connected to the hollow shaft, and a first keyway is provided on the inner diameter side of the rotor; and / or a second keyway is provided on the outer side of the hollow shaft.

[0018] In some embodiments, the motor further comprises an oil film bearing, wherein the oil film bearing is sleeved on the hollow shaft;

[0019] A locating bearing is provided at one end of the hollow shaft away from the oil film bearing, and the locating bearing is used to limit the position of the hollow shaft in the spinning machine housing.

[0020] In some embodiments, a plurality of lifting holes are further provided on the upper stator and the lower stator.

[0021] Compared with the prior art, the technical progress achieved by this utility model is:

[0022] The stator in the utility model is composed of an upper stator and a lower stator, and the upper stator and the lower stator are detachably connected. The upper stator and the lower stator are both semicircular structures. The operator can directly disassemble the upper stator and the lower stator to facilitate the installation and maintenance of various components inside the motor, and can shorten the transmission chain between the motor and the spinning machine, which is beneficial to the high-speed rotation stability of the motor and the convenience of rapid installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0024] In the attached figure:

[0025] Figure 1 This is a schematic diagram of the structure of the electric motor of the utility model;

[0026] Figure 2 Schematic diagram of the stator of the electric motor of the present utility model;

[0027] Figure 3 This is a schematic diagram of the connection between the upper stator and the lower stator of the utility model;

[0028] Figure 4 It is a partial schematic diagram of the electric motor of the present utility model.

[0029] In the figure: 1. Hollow shaft; 2. Rotor; 3. Stator; 31. Upper stator; 32. Lower stator; 33. Positioning hole; 34. Lifting hole; 4. Oil outlet; 5. Oil inlet; 6. First gap; 7. Second gap; 8. Oil film bearing; 9. Housing; 10. First keyway; 11. Second keyway; 12. Positioning bearing. DETAILED DESCRIPTION

[0030] The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. The following embodiments of the present invention will be described in conjunction with the accompanying drawings.

[0031] like Figures 1 to 4 As shown, the utility model discloses an electric motor, which is applied to a spinning machine. The electric motor uses the magnetic field effect generated by current passing through a conductor to convert electrical energy into rotational mechanical energy, thereby driving the manufacturing process of the metal wire. The electric motor can be a DC motor or an AC motor, and can be adaptively set as needed. In this regard, there are no more restrictions in this application. When the spinning machine is running, the stator 3 of the motor is stationary, while the rotor 2 rotates, that is, the stator 3 has a winding, and current passes through the winding of the stator 3 and generates a magnetic field, so that the rotor 2 rotates under the action of the magnetic field.

[0032] Among them, the motor includes a hollow shaft 1, a rotor 2 and a stator 3. The hollow interior of the hollow shaft 1 is the main working part of the spinning machine. When the spinning machine is working, the steel wire passes through the hollow hollow shaft 1 to complete the spinning. The hollow shaft 1 is installed in the housing 9 of the motor to provide support and rotational force for the rotor 2. At the same time, it can effectively reduce friction and improve the operating efficiency of the motor. The rotor 2 has a circular ring structure and is interference-fitted on the hollow shaft 1. The rotor 2 with a circular ring structure can generate uniform centrifugal force when rotating, reduce vibration and noise, and improve the stability of power output. The stator 3 is installed on the outside of the outer ring of the rotor 2. The structure of the stator can be set as needed to adapt to different working environments and load requirements.

[0033] In one example, if Figures 1 to 4 As shown, the stator 3 adopts a split structure, consisting of an upper stator 31 and a lower stator 32. The upper stator 31 and the lower stator 32 are arranged relative to each other on the rotor 2. During the use of the spinning machine, the split structure of the stator 3 provides flexible structural adjustment space. The upper stator 31 and the lower stator 32 are tightly connected through a detachable connection, which facilitates the operator to easily install, remove and repair the stator 3, improving work efficiency and service life, thereby avoiding the time and effort of disassembling the entire structure. In another example (not shown in the figure), the upper and lower stators are equipped with cooling and ventilation parts to ensure that the motor is not easily overheated during long-term operation, thereby achieving efficient operation, stability and safety of the motor.

[0034] like Figure 2 As shown, the upper stator 31 and the lower stator 32 are both semicircular structures. The semicircular upper stator 31 and the lower stator 32 can effectively surround the rotor 2 and match with the rotor 2 to form a complete magnetic field of the stator 3, and can provide a uniform magnetic force distribution, which helps to improve the working efficiency of the motor. During the operation of the motor, the rotor 2 rotates in the magnetic field of the stator 3. The semicircular structure of the upper stator 31 and the lower stator 32 helps to maximize the effective magnetic flux, thereby ensuring efficient power output, and is also conducive to heat dissipation, which can more effectively discharge the heat generated during the operation of the rotor 2 and prevent the motor from overheating.

[0035] The stator 3 has a plurality of positioning holes 33, and the positioning holes 33 are all located on the upper stator 31 and the lower stator 32. The positioning holes 33 can provide precise assembly and positioning functions. During the assembly process, the positioning holes 33 can ensure that the upper stator 31 and the lower stator 32 are firmly and accurately docked, avoiding unstable operation or mechanical failure due to assembly errors. The number of positioning holes 33 can be two or six, as long as the positions of the upper stator 31 and the lower stator 32 can be accurately determined. In this regard, there are no excessive restrictions in this application. The connection method of the upper stator 31 and the lower stator 32 is positioning by positioning pins and threaded connection. In one example, the upper stator 31 and the lower stator 32 are positioned by positioning pins and threaded connection to ensure that the motor will not loosen or generate noise during use. At the same time, the operator can also easily and quickly install and disassemble the stator 3, thereby ensuring the stable performance and efficient power output of the motor.

[0036] In some embodiments, as Figures 1 to 4 As shown, the upper stator 31 and the lower stator 32 are arranged relative to each other, that is, the lower stator 32 is located at the bottom of the housing 9 and is connected to the bottom of the housing 9 with bolts, and the upper stator 31 is located on the top of the lower stator 32 and is connected by positioning pins and bolts; and the direction in which the upper stator 31 and the lower stator 32 are arranged relative to each other (as shown in FIG. Figure 2 z direction shown in ) and the radial direction of the hollow shaft 1 (as shown in Figure 2 The x direction shown in FIG is perpendicular to each other to ensure that the magnetic field of the stator 3 can surround the rotor 2, thereby ensuring the compactness and stability of the motor structure.

[0037] Among them, the lower stator 32 is connected to the bottom of the shell 9, and the upper stator 31 is connected to the lower stator 32. The shell 9 serves as an important supporting structure of the motor, bearing the weight of the upper stator 31 and the lower stator 32. It also provides an overall outer shell of the motor to protect the internal components from the external environment. The material of the shell 9 can be aluminum alloy, pig iron, cast steel, welded steel plate and copper, etc. In this application, the shell 9 is a welded steel plate. The welded steel plate shell 9 has the characteristics of high strength, thereby ensuring the durability and reliability of the motor under various working conditions.

[0038] In some embodiments, as Figures 1 to 4 As shown, the inner diameter of the stator 3 is larger than the outer diameter of the rotor 2, and the stator 3 and the rotor 2 are coaxially arranged. In the assembled state, this ensures that the stator 3 and the rotor 2 cooperate and are installed together. In one example, the inner diameter of the stator 3 is 500 mm and the outer diameter of the rotor 2 is 490 mm, so that the inner diameter of the stator 3 can accommodate the rotor 2 and provide sufficient space, thereby achieving smooth rotation of the rotor 2 and avoiding collision and friction. In another example, the inner diameter of the rotor 2 is 300 mm, the outer diameter of the rotor 2 is 498 mm-499 mm, and the inner diameter of the stator 3 is 510 mm, to ensure that the stator 3 and the rotor 2 cooperate with each other, thereby improving the operating efficiency of the motor. In yet another example, the inner diameter of the stator 3 is 500 mm, the inner diameter of the rotor 2 is 300 mm, and the outer diameter of the rotor 2 is 498 mm-499 mm. The stator 3 and the rotor 2 cooperate with each other and provide space for the rotor 2 to rotate, avoiding collision and friction during operation, which affects the operating safety and working efficiency of the motor.

[0039] In some embodiments, as Figure 4 As shown, a first gap 6 is provided between the stator 3 and the rotor 2. This gap is used to minimize contact between the rotor 2 and the stator 3 during operation and effectively prevent damage caused by heat accumulation. The length of the first gap 6 is 1-2 mm. In one example, a first gap 6 of 2 mm is provided between the stator 3 and the rotor 2. This minimizes contact between the rotor 2 and the stator 3 during operation and effectively dissipates heat, thereby extending the motor's service life.

[0040] There is a second gap 7 between the rotor 2 and the hollow shaft 1 . The second gap 7 is a negative gap, that is, the inner diameter of the rotor 2 and the hollow shaft 1 are in interference fit.

[0041] In some embodiments, as Figure 2 and Figure 3As shown, an oil outlet 4 and an oil inlet 5 are provided on the outer ring side walls of the upper stator 31 and the lower stator 32. Lubricating oil flows into the interior of the stator 3 or the rotor 2 through the oil inlet 5, which can reduce the operating temperature of the stator 3 or the rotor 2 when the motor is running. In one example (not shown in the drawings), oil tanks are provided on both sides of the rotor. The oil tanks are used to store lubricating oil to ensure that sufficient lubrication can be provided when the motor is running to reduce friction and wear. The oil outlet and the oil inlet are connected to the oil tanks through oil channels. When the lubricating oil in the oil tanks is consumed or contaminated when the motor is running, the contaminated lubricating oil can be discharged from the oil outlet and fresh lubricating oil can be promptly injected through the oil inlet to ensure that the equipment is always in the best working condition and improve the operating efficiency and service life of the entire motor.

[0042] In some embodiments, as Figures 1 to 4 As shown, the rotor 2 is key-connected to the hollow shaft 1 to ensure that the two can rotate together on the same axis. To ensure a reliable connection, a first keyway 10 is provided on the inner diameter of the rotor 2, or a second keyway 11 is provided on the outer diameter of the hollow shaft 1, and the middle is connected with a key. In one example, a first keyway 10 is provided on the inner diameter side of the rotor 2, and the key is firmly embedded in the first keyway 10. The hollow shaft 1 is connected to the rotor 2 through the key and effectively transmits torque, preventing damage caused by relative sliding, thereby improving the stability and reliability of the motor. In one example, a first keyway 10 is provided on the inner diameter side of the rotor 2, and a second keyway 11 is provided on the outer side of the hollow shaft 1. The keys are both located in the first keyway 10 and the second keyway 11, and the rotor 2 and the hollow shaft 1 are connected. The first keyway 10 and the second keyway 11 can enhance the tightness and connection strength of the connection to ensure the tightness of the fit and the axial stability, thereby reducing the friction loss during operation and extending the service life of the equipment.

[0043] In some embodiments, the motor further includes an oil film bearing 8, which is sleeved on the hollow shaft 1 and plays a key load-bearing and supporting role, so that the rotor 2 and the hollow shaft 1 and the housing 9 maintain good sliding properties, reduce friction and wear, and thus improve the operating efficiency and service life of the motor. The oil film bearing 8 can be seen in another patent of the inventor, "CN211161202U An adjustment-free oil film bearing assembly for the main shaft of the high-wire rolling mill spinning head". In one example, the motor is also provided with a locating bearing 12, which is used to accurately position the hollow shaft 1 and the rotor 2 in the spinning head housing 9. The stator 3 is also provided with a lifting hole 34. In the assembled state, the stator 3 can be lifted through the lifting hole 34 for installation, disassembly and maintenance, thereby improving the convenience of the motor.

[0044] The working principle of a motor proposed in this utility model is:

[0045] like Figures 1 to 4As shown, first, the annular rotor 2 is interference-fitted onto the hollow shaft 1, followed by the oil film bearing 8 and the locating bearing 12. Next, the lower stator 32 is installed and threaded onto the bottom of the housing 9. The hollow shaft 1 with the rotor 2 is then horizontally mounted onto the housing 9 along its length. The upper stator 31 and the lower stator 32 are then threaded together. Lubricating oil enters the stator 3 through the oil inlet 5 and cools the stator 3. The upper stator 31 and the lower stator 32 are tightly coupled together through the locating holes 33 and connected via the coil connector, thus completing the assembly of the motor, i.e., the assembly of the spinning machine. If the operator needs to inspect and repair the motor, the upper stator 31 and the lower stator 32 can be directly disassembled, i.e., the upper stator 31 is first hoisted, and then the hollow shaft 1 is hoisted for maintenance. After the maintenance is completed, the hollow shaft 1 is installed in place, and the upper stator 31 is hoisted in and fixed to the lower stator 32. This completes the maintenance and replacement of the motor's interior.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An electric motor, characterized in that: Applied to laying heads, including: A hollow shaft is installed in the housing; The rotor has a circular ring structure and is interference-mounted on the hollow shaft; A stator is mounted on the outer side of the outer ring of the rotor, the stator consisting of an upper stator and a lower stator, and the upper stator and the lower stator are detachably connected; Wherein, the upper stator and the lower stator are both semicircular structures, and the stator has a plurality of positioning holes. Positioning pins pass through the plurality of positioning holes to position the upper stator and the lower stator relative to each other and connect them with bolts.

2. The electric motor according to claim 1, wherein: The lower stator is located at the bottom of the housing and is connected by bolts, and the upper stator is located on the top of the lower stator.

3. The electric motor according to claim 2, characterized in that: The inner diameter of the stator is greater than the outer diameter of the rotor, and the inner diameter of the stator is 500 mm; and / or the inner diameter of the rotor is 300 mm, and the outer diameter of the rotor is 498 mm-499 mm.

4. The electric motor according to claim 3, characterized in that: There is a first gap between the stator and the rotor, and the distance of the first gap is 1-2 mm; and / or, A second gap is provided between the rotor and the hollow shaft, and the second gap is a negative gap, so that the rotor and the hollow shaft are interference-fitted and key-connected.

5. The electric motor according to claim 1, wherein: An oil outlet and an oil inlet are provided on the outer ring side walls of the upper stator and the lower stator; Oil grooves are provided on both sides of the rotor, and the oil grooves are used to store lubricating oil. The oil outlet and the oil inlet are connected to the oil grooves through oil channels.

6. The electric motor according to claim 1, characterized in that: The rotor is interference-fitted and key-connected to the hollow shaft, and a first keyway is provided on the inner diameter side of the rotor; and / or a second keyway is provided on the outer side of the hollow shaft.

7. The electric motor according to claim 1, characterized in that: The motor further comprises an oil film bearing, wherein the oil film bearing is sleeved on the hollow shaft; A locating bearing is provided at one end of the hollow shaft away from the oil film bearing, and the locating bearing is used to limit the position of the hollow shaft in the spinning machine housing.

8. The electric motor according to claim 1, characterized in that: The upper stator and the lower stator are also provided with a plurality of lifting holes.

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