Motor shell of hoisting motor and hoisting motor

Abstract

The utility model relates to the technical field of motors, in particular to a motor shell of a hoisting motor and the hoisting motor. The motor shell comprises a main shell, a mounting shaft sleeve and a connecting plate, one end of the connecting plate is connected with the main shell, and the other end of the connecting plate is connected with the mounting shaft sleeve; the mounting shaft sleeve is provided with an axial opening, the axial opening is located in the side, facing the main shell, of the mounting shaft sleeve, locking plates are arranged on the edges of the two sides of the axial opening respectively, and the locking plates are located between the mounting shaft sleeve and the main shell. The two locking plates are respectively provided with a plurality of connecting holes opposite to each other in position, and the connecting plates are provided with receding holes corresponding to the connecting holes in position. The inner wall of the installation shaft sleeve can tightly wrap the surface of the installation shaft, the installation shaft sleeve and the installation shaft have a large contact area, friction force is increased, the effect that the motor is stably installed is achieved, and after the take-up machine is used for a long time, the motor does not shift and still has a good take-up effect.

Description

Technical Field

[0001] This utility model relates to the field of electric motor technology, and in particular to a motor housing and a hoisting motor. Background Technology

[0002] The electric motor of the take-up machine drives the take-up roller to rotate via a belt. To facilitate adjustment of the belt tension, the motor is installed inside the take-up machine using a suspended mounting method. Currently, the motor installation structure inside the take-up machine is as follows: a horizontal mounting shaft is fixed inside the take-up machine, and a bushing is fixed to the motor housing. The bushing is fitted over the mounting shaft, and multiple threaded holes are opened on opposite sides of the bushing. Screws pass through the threaded holes and abut against the mounting shaft, achieving relative fixation between the bushing and the mounting shaft, thus enabling the installation of the motor. Because the motor needs to tension the belt, the installed motor is often in a tilted state. Since the bushing and the mounting shaft are only positioned by the contact of the screws, the motor is prone to displacement after running for a period of time. The belt loosens, causing the take-up roller to not wind tightly, or even the yarn to come off, which greatly affects the take-up effect. Utility Model Content

[0003] The purpose of this utility model is to provide a motor housing and a hoisting motor for a hoisting motor, which can be stably installed on the mounting shaft, effectively improving the winding effect of the winding machine.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A motor housing for a hoisting motor includes a main housing, a mounting bushing, and a connecting plate, wherein one end of the connecting plate is connected to the main housing and the other end is connected to the mounting bushing;

[0006] The mounting bushing is provided with an axial opening, which is located on the side of the mounting bushing facing the main housing. Locking plates are provided on both sides of the axial opening, and the locking plates are located between the mounting bushing and the main housing.

[0007] The two locking plates are each provided with a plurality of connecting holes that are directly opposite each other, and the connecting plate is provided with clearance holes that correspond to the positions of the connecting holes.

[0008] Furthermore, the width of the axial opening is 2~5mm, the distance between the two locking plates is the same as the width of the axial opening, and the thickness of the locking plate is 4~6mm.

[0009] Furthermore, the side wall of the locking plate, the outer wall of the mounting bushing, and the inner wall of the connecting plate are connected by an arc-shaped surface, which is provided with a plurality of axial connecting grooves, the width of which is less than 3mm.

[0010] Furthermore, the inside of the mounting bushing is provided with an anti-slip pad.

[0011] Furthermore, the two connecting plates are symmetrically distributed on the left and right sides of the main housing, and the extended surfaces of the outer walls of the two connecting plates are tangent to the outer wall of the main housing and the outer wall of the mounting bushing, respectively.

[0012] Furthermore, cover mounting holes are provided at the connection between the connecting plate and the main housing, and at the bottom of the main housing, respectively;

[0013] The main housing has cover mounting holes at both ends.

[0014] Furthermore, the outer wall of the main housing is provided with heat dissipation protrusions, the thickness of which is less than the thickness of the main housing.

[0015] Accordingly, a hoisting motor includes a stator, a rotor, a front cover, a rear cover, and a motor housing of the hoisting motor described above;

[0016] The front cover and the rear cover are respectively fixed to the front and rear ends of the motor housing, the stator is fixed to the inner wall of the motor housing, and the rotor is installed inside the motor housing via a rotating shaft;

[0017] The front end of the rotating shaft extends from the front cover, and a cooling fan is installed at the rear end of the rotating shaft. The front cover is provided with an air inlet, and the rear cover is provided with an air outlet.

[0018] Furthermore, the rotating shaft is provided with interconnected radial air intake holes and axial heat dissipation channels. The radial air intake holes are located between the rotor and the front end cover, and the opening end of the axial heat dissipation channel is located at the end of the rotating shaft directly opposite the rear end cover.

[0019] An air guide plate is provided between the rotor and the radial air inlet. The top edge of the air guide plate is close to the air inlet, and the top edge of the air guide plate is located between the shaft and the rotor-stator gap.

[0020] The technical solution provided by this utility model can include the following beneficial effects:

[0021] Based on the structural design of the mounting bushing on the motor housing, two locking plates are tightened with screws, causing the axial opening to shrink. The inner wall of the mounting bushing tightly covers the surface of the mounting shaft, thus securing the motor to the mounting shaft. Due to the large contact area between the mounting bushing and the mounting shaft, the friction between them is increased, achieving a stable motor installation. Even after long-term use, the motor will not shift and the winding machine will still maintain excellent winding performance. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the end face of a motor housing according to an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 The diagram shows the structural schematic of the motor housing.

[0024] Figure 3 This is a schematic diagram of the end face of the motor housing according to another embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of a motor housing according to another embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the axial cross-section of the hoisting motor;

[0027] The components include: main housing 1, cover mounting hole 11, heat dissipation protrusion 12, plane 13, mounting bushing 2, axial opening 21, locking plate 22, connecting hole 23, connecting plate 3, clearance hole 31, and connecting groove 4.

[0028] Stator 5, Rotor 6, Front cover 7, Air inlet 71, Rear cover 8, Air outlet 81, Shaft 9, Radial air intake hole 91, Axial heat dissipation channel 92, Air guide plate 93, Cooling fan 10. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] The following is combined Figures 1 to 4 This describes a motor housing for a hoisting motor according to an embodiment of the present utility model.

[0031] The motor housing of the hoisting motor in this embodiment includes a main housing 1, a mounting bushing 2 and a connecting plate 3. One end of the connecting plate 3 is connected to the main housing 1 and the other end is connected to the mounting bushing 2.

[0032] The mounting bushing 2 is provided with an axial opening 21, which is located on the side of the mounting bushing 2 facing the main housing 1. Locking plates 22 are respectively provided on both sides of the axial opening 21, and the locking plates 22 are located between the mounting bushing 2 and the main housing 1.

[0033] The two locking plates 22 are respectively provided with a plurality of connecting holes 23 facing each other, and the connecting plate 3 is provided with a clearance hole 31 corresponding to the position of the connecting hole 23.

[0034] In this technical solution, the motor housing is installed on the take-up machine mounting shaft as follows: the mounting sleeve 2 is fitted over the mounting shaft, and a screw passes through the clearance hole 31 and is inserted into the connecting hole 23. The screw also passes through the connecting hole 23 of the two locking plates 22, and a nut is tightened at the other end of the screw. By tightening the nut, the distance between the two locking plates 22 is reduced, thereby shrinking the axial opening 21. The inner wall of the mounting sleeve 2 can tightly cover the surface of the mounting shaft, thus fixing the motor on the mounting shaft. Because the mounting sleeve 2 and the mounting shaft have a large contact area, the friction between them increases, achieving a stable motor installation. Even after long-term use, the motor will not shift and will still have a good take-up effect. Preferably, the mounting sleeve 2 has an anti-slip pad inside, further improving the installation stability of the motor. Additionally, the diameter of the clearance hole 31 is larger than that of the connecting hole 23, facilitating screw installation and reducing the weight of the motor housing. For example, the motor housing is formed by casting or extrusion molding. Understandably, the locking plate 22 is located between the mounting bushing 2 and the main housing 1, which will not increase the overall size of the motor and facilitates installation.

[0035] Preferably, the width of the axial opening 21 is 2-5mm, allowing the mounting shaft to be smoothly inserted into the mounting sleeve 2 while facilitating locking. The distance between the two locking plates 22 is the same as the width of the axial opening 21, and the thickness of the locking plates 22 is 4-6mm. A thicker locking plate 22 is less prone to deformation and can withstand greater locking force, which is beneficial for the stable installation of the motor. Furthermore, the distance between the two locking plates 22 is the same as the width of the axial opening 21, meaning the two locking plates 22 are parallel to each other. After locking, the inner wall of the mounting sleeve 2 can completely fit tightly against the mounting shaft.

[0036] In one embodiment of this utility model, such as Figure 3 As shown, the sidewall of the locking plate 22, the outer wall of the mounting sleeve 2, and the inner wall of the connecting plate 3 are connected by an arc-shaped surface. The arc-shaped surface is provided with several axial connecting grooves 4, the width of which is less than 3mm. It is understood that when the screws tighten the two locking plates 22, the position where the locking plate 22 connects to the mounting sleeve 2 deforms, causing the axial opening 21 to shrink, i.e., the arc-shaped surface deforms. The connecting grooves 4 facilitate this deformation, preventing damage to the arc-shaped surface due to deformation. Preferably, the number of connecting grooves 4 is 2 to 3.

[0037] In one embodiment of this utility model, the two connecting plates 3 are symmetrically distributed on the left and right sides of the main housing 1. The extended surfaces of the outer walls of the two connecting plates 3 are tangent to the outer wall of the main housing 1 and the outer wall of the mounting bushing 2, respectively, making the connection structure of the main housing 1, connecting plates 3 and mounting bushing 2 more stable.

[0038] Preferably, the connection point between the connecting plate 3 and the main housing 1, as well as the bottom of the main housing 1, are respectively provided with cover mounting holes 2311; both ends of the main housing 1 are respectively provided with cover mounting holes 2311. The cover mounting holes 2311 are used to connect the front cover and the rear cover, which helps to increase the wall thickness at the connection point between the connecting plate 3 and the main housing 1, improving the connection strength between the connecting plate 3 and the main housing 1. Furthermore, all the connecting holes 23 are located on the outer side of the two connecting plates 3, meaning there is no assembly connection point between the two connecting plates 3, facilitating operation. Figure 4 As shown, in one specific embodiment, connecting blocks are fixed to both ends of the main housing 1 by welding, and the cover mounting hole 2311 is formed in the connecting block. In another specific embodiment, as shown... Figure 2 As shown, the outer wall of the main housing 1 has an axial connecting strip, and the cover mounting holes 2311 at both ends of the main housing 1 are respectively located at both ends of the connecting strip. The connecting strip and the main housing 1 are cast together.

[0039] Further preferably, the outer wall of the main housing 1 is provided with heat dissipation protrusions 12, the thickness of which is less than the thickness of the main housing 1, so that the main housing 1 has better heat dissipation performance. The outer wall of the main housing 1 is provided with an axial plane 13, which is used to mount a nameplate.

[0040] like Figure 5 As shown, the present invention also provides a hoisting motor, including a stator 5, a rotor 6, a front cover 7, a rear cover 8, and a motor housing of the hoisting motor according to any of the above embodiments.

[0041] The front cover 7 and the rear cover 8 are respectively fixed to the front and rear ends of the motor housing, the stator is fixed to the inner wall of the motor housing, and the rotor 6 is installed inside the motor housing via the rotating shaft 9;

[0042] The front end of the rotating shaft 9 extends from the front cover 7, and a cooling fan 10 is installed at the rear end of the rotating shaft 9. The front cover 7 is provided with an air inlet 71, and the rear cover 8 is provided with an air outlet 81.

[0043] The hoisting motor is fixed to the mounting shaft of the take-up machine via a mounting bushing 2. Due to the large contact area between the mounting bushing 2 and the mounting shaft, the friction between them is increased, achieving a stable installation of the motor. Additionally, the motor's rotating shaft 9 drives the cooling fan 10 to rotate, allowing outside air to enter the main housing 1 through the air inlet 71, pass through the gap between the rotor 6 and the stator 5, and exit through the air outlet 81, achieving a cooling effect. When the outer wall of the main housing 1 has heat dissipation ridges 12, the heat dissipation effect of the motor is further improved.

[0044] Specifically, a bearing is located in the center of the front cover 7, which supports the rotating shaft 9. A bearing seat is fixed between the main housing 1 and the rear cover 8, supporting the other end of the rotating shaft 9. Thus, the distance between the two bearings is relatively short, resulting in a stable transmission effect. The front cover and the rear cover are fixed to both ends of the motor housing through the cover mounting holes 2311.

[0045] In one embodiment, the rotating shaft 9 is provided with a radial air intake hole 91 and an axial heat dissipation channel 92 that are interconnected. The radial air intake hole 91 is located between the rotor 6 and the front end cover 7, and the opening end of the axial heat dissipation channel 92 is located at the end of the rotating shaft 9 that is directly opposite the rear end cover 8.

[0046] An air guide plate 93 is provided between the rotor 6 and the radial air inlet 91. The top edge of the air guide plate 93 is close to the air inlet 71, and the top edge of the air guide plate 93 is located between the shaft 9 and the stator 5.

[0047] Understandably, the gap between the stator 5 and the rotor 6, i.e., the rotor-stator 5 gap, is relatively small. When the shaft 9 rotates at high speed, the cooling fan 10 also has a high speed. However, the small rotor-stator 5 gap results in significant air resistance, affecting the motor's power. In this solution, by setting radial air intake holes 91 and axial heat dissipation channels 92 inside the shaft 9, the airflow resistance of the cooling fan 10 is effectively reduced. At the same time, based on the setting of the air guide plate 93, airflow within the rotor-stator 5 gap is ensured.

[0048] The motor housing and other components of the hoisting motor according to the embodiments of the present invention, as well as its operation, are known to those skilled in the art and will not be described in detail here.

[0049] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0050] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A motor housing for a hoisting motor, characterized in that, It includes a main housing, a mounting bushing, and a connecting plate, with one end of the connecting plate connected to the main housing and the other end connected to the mounting bushing; The mounting bushing is provided with an axial opening, which is located on the side of the mounting bushing facing the main housing. Locking plates are provided on both sides of the axial opening, and the locking plates are located between the mounting bushing and the main housing. The two locking plates are each provided with a plurality of connecting holes that are directly opposite each other, and the connecting plate is provided with clearance holes that correspond to the positions of the connecting holes.

2. The motor housing of the hoisting motor according to claim 1, characterized in that, The width of the axial opening is 2~5mm, the distance between the two locking plates is the same as the width of the axial opening, and the thickness of the locking plate is 4~6mm.

3. The motor housing of the hoisting motor according to claim 2, characterized in that, The side wall of the locking plate, the outer wall of the mounting bushing, and the inner wall of the connecting plate are connected by an arc-shaped surface. The arc-shaped surface is provided with a plurality of axial connecting grooves, and the width of the connecting grooves is less than 3mm.

4. The motor housing of the hoisting motor according to claim 1, 2 or 3, characterized in that, The mounting bushing is equipped with an anti-slip pad.

5. The motor housing of the hoisting motor according to claim 1, 2 or 3, characterized in that, The two connecting plates are symmetrically distributed on the left and right sides of the main housing, and the extended surfaces of the outer walls of the two connecting plates are tangent to the outer wall of the main housing and the outer wall of the mounting bushing, respectively.

6. The motor housing of the hoisting motor according to claim 5, characterized in that, The connection between the connecting plate and the main housing, as well as the bottom of the main housing, are respectively provided with cover mounting holes; The main housing has cover mounting holes at both ends.

7. The motor housing of the hoisting motor according to claim 1, characterized in that, The outer wall of the main housing is provided with heat dissipation protrusions, and the thickness of the heat dissipation protrusions is less than the thickness of the main housing.

8. A hoisting motor, characterized in that, Includes a stator, a rotor, a front cover, a rear cover, and a motor housing of the hoisting motor as described in any one of claims 1-7; The front cover and the rear cover are respectively fixed to the front and rear ends of the motor housing, the stator is fixed to the inner wall of the motor housing, and the rotor is installed inside the motor housing via a rotating shaft; The front end of the rotating shaft extends from the front cover, and a cooling fan is installed at the rear end of the rotating shaft. The front cover is provided with an air inlet, and the rear cover is provided with an air outlet.

9. The hoisting motor according to claim 8, characterized in that, The rotating shaft is provided with interconnected radial air intake holes and axial heat dissipation channels. The radial air intake holes are located between the rotor and the front end cover, and the opening end of the axial heat dissipation channel is located at the end of the rotating shaft directly opposite the rear end cover. An air guide plate is provided between the rotor and the radial air inlet. The top edge of the air guide plate is close to the air inlet, and the top edge of the air guide plate is located between the shaft and the rotor-stator gap.

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