Middle plate structure of asynchronous motor

Abstract

The utility model provides a middle plate structure of an asynchronous motor, and relates to the technical field of middle plate structures. A fixing base is welded to the inner wall of the motor shell, two insertion holes are formed in the fixing base, and an insertion rod is inserted into each insertion hole. Through the arrangement of the inserting rods and the inserting holes, on one hand, when the middle plate is installed on the fixing base, the middle plate can be rapidly positioned through the inserting connection of the inserting rods and the inserting holes, and the middle plate can be conveniently fixed in the follow-up process; on the other hand, due to the fact that the ends of the lower portions of the two insertion rods are each of an arc-shaped structure after polishing treatment, the insertion rods and the insertion holes can be inserted more smoothly; through the arrangement of the mounting groove, after threads of the nut are damaged, the nut can be directly taken out of the mounting groove and replaced, and the maintenance cost is reduced; and through the arrangement of the auxiliary groove, when the adjusting position of the fixing screw is damaged and the wrench cannot be clamped with the fixing screw, a hexagon wrench can be inserted into the auxiliary groove for adjustment, and the flexibility is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of middle plate structures, and more specifically, relates to a middle plate structure of an asynchronous motor. Background Art

[0002] An asynchronous motor, also known as an induction motor, is an AC motor that generates electromagnetic torque through the interaction between the rotating magnetic field in the air gap and the induced current in the rotor winding, thereby converting electromechanical energy into mechanical energy. The power consumption of asynchronous motors in my country accounts for more than 60% of the total load. Asynchronous motors with a midplate can achieve the joint action of two sets of stators and rotors through the midplate, thereby realizing effective power output.

[0003] When fixing the centering plate, the existing device fixes it partly through positioning pins and positioning grooves, and the cross-section of the positioning grooves is concave, which makes it inconvenient to disassemble during subsequent maintenance or replacement; the other part is fixed by screws. When fixing by screws, it is necessary to repeatedly align the threaded holes, which affects the fixing efficiency, and the maintenance cost is high when the threaded holes on the fixing seat are damaged. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a middle plate structure of an asynchronous motor to solve the problem that when fixing the middle plate in the existing device, one part is fixed by a positioning pin and a positioning groove, and the cross-section of the positioning groove is concave, which makes it inconvenient to disassemble during subsequent maintenance or replacement; the other part is fixed by a screw, and when fixing by the screw, it is necessary to repeatedly align the threaded hole, which affects the fixing efficiency, and the maintenance cost is high when the threaded hole on the fixing seat is damaged.

[0005] The purpose and effect of the middle plate structure of an asynchronous motor of the present invention are achieved by the following specific technical means:

[0006] A middle plate structure of an asynchronous motor includes a motor housing; a fixing seat is welded on the inner wall of the motor housing, and two plug holes are provided on the fixing seat. A plug rod is plugged into each plug hole, and the upper ends of the two plug rods are welded to the middle plate.

[0007] Furthermore, the lower ends of the two connecting rods are polished, and after polishing, the lower ends of the two connecting rods are both arc-shaped structures.

[0008] Furthermore, the middle plate is provided with three ventilation holes in a circular array, and the three ventilation holes are all circular hole structures.

[0009] Furthermore, two mounting grooves are provided on the bottom end surface of the fixing seat, both of which are hexagonal groove structures, and a nut is clamped in each mounting groove.

[0010] Furthermore, two fixing screws are inserted into the middle plate, and the two fixing screws are threadedly connected to the two nuts.

[0011] Furthermore, the adjustment portion of each of the fixing screws is a hexagonal structure, and an auxiliary groove is provided at the adjustment portion of each of the fixing screws, and the auxiliary groove is a hexagonal groove structure.

[0012] Furthermore, four disassembly holes are opened on the top surface of the fixing seat, the two disassembly holes on the front side are aligned with an auxiliary groove on the front side, and the two disassembly holes on the rear side are aligned with an auxiliary groove on the rear side.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the present application, by setting the plug-in rods and the plug-in holes, on the one hand, when the middle plate is installed on the fixing seat, the plug-in rods and the plug-in holes are plugged in, so that the middle plate can be quickly positioned, which is convenient for the subsequent fixation of the middle plate; on the other hand, because the lower ends of the two plug-in rods are both arc-shaped structures after polishing, the plug-in rods and the plug-in holes will be smoother when plugging.

[0015] In this application, by setting the installation groove, after the thread of the nut is damaged, the nut can be directly taken out from the installation groove and replaced, thereby reducing maintenance costs.

[0016] In the present application, by providing the auxiliary groove, when the adjustment portion of the fixed screw is damaged and the wrench cannot be engaged with it, a hexagonal wrench can be inserted into the auxiliary groove for adjustment, which is highly flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of the axial structure of the middle plate structure of the asynchronous motor.

[0018] Figure 2 It is a schematic top view of the middle plate structure of the asynchronous motor of the present invention.

[0019] Figure 3 The utility model is a schematic diagram of the axial structure of the asynchronous motor after the middle plate structure is partially cut away.

[0020] Figure 4 This utility model Figure 3 Schematic diagram of the axial structure after further sectioning.

[0021] Figure 5 This utility model Figure 4 Schematic diagram of the axis view split structure.

[0022] Figure 6 This utility model Figure 5 A is an enlarged structural diagram of FIG.

[0023] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0024] 1. Motor housing; 101. Fixing seat; 102. Plug hole; 2. Middle plate; 201. Plug rod; 202. Fixing screw; 203. Ventilation hole; 204. Mounting slot; 205. Nut; 206. Auxiliary slot; 207. Disassembly hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by ordinary technicians in the field to which the present invention belongs. Similar words such as "one", "an" or "the" used in the specification and claims of the present utility model patent application do not indicate quantity limitations, but rather indicate the existence of at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0027] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples.

[0028] Example 1:

[0029] As attached Figure 1 To the attached Figure 6 As shown:

[0030] The utility model provides a middle plate structure of an asynchronous motor, comprising a motor housing 1; a fixing base 101 is welded on the inner wall of the motor housing 1, and two plug holes 102 are provided on the fixing base 101, and a plug rod 201 is plugged into each plug hole 102, and the upper ends of the two plug rods 201 are welded to the middle plate 2. When the middle plate 2 is installed on the fixing base 101, the plug rods 201 are plugged into the plug holes 102, so that the middle plate 2 can be quickly positioned, which is convenient for subsequent fixing of the middle plate 2.

[0031] Among them, the lower ends of the two connecting rods 201 are polished. After polishing, the lower ends of the two connecting rods 201 are both arc-shaped structures, which will make it smoother when the connecting rods 201 are plugged into the connecting holes 102.

[0032] Among them, three air holes 203 are opened on the middle plate 2 in a ring array. The three air holes 203 are all circular hole structures. During use, the three air holes 203 can ensure the circulation of gas and uniform temperature inside the motor housing 1.

[0033] Among them, two installation grooves 204 are opened on the bottom end surface of the fixing seat 101. Both installation grooves 204 are hexagonal groove structures. A nut 205 is clamped in each installation groove 204. After the thread of the nut 205 is damaged, the nut 205 can be directly replaced, which reduces the maintenance cost.

[0034] Among them, two fixing screws 202 are inserted into the middle plate 2, and the two fixing screws 202 are threadedly connected to the two nuts 205. During use, the middle plate 2 can be fixed by the two fixing screws 202 and the two nuts 205.

[0035] Example 2:

[0036] On the basis of Example 1, the adjustment part of each fixing screw 202 is a hexagonal structure, and an auxiliary groove 206 is provided at the adjustment part of each fixing screw 202. The auxiliary groove 206 is a hexagonal groove structure. When the adjustment part of the fixing screw 202 is damaged and the wrench cannot be engaged with it, a hexagonal wrench can be used to insert it into the auxiliary groove 206 for adjustment, which is highly flexible.

[0037] Example 3:

[0038] On the basis of Example 2, four disassembly holes 207 are fixed on the top surface of the fixing seat 101, the two disassembly holes 207 on the front side are aligned with an auxiliary groove 206 on the front side, and the two disassembly holes 207 on the rear side are aligned with an auxiliary groove 206 on the rear side. When disassembling the nut 205, the punch rod is directly inserted into the disassembly hole 207, and then the punch rod is struck with a hammer. At this time, the nut 205 in the mounting groove 204 can be quickly disassembled.

[0039] Working principle: During installation, insert the two connecting rods 201 into the two connecting holes 102. At this time, align the fixing screws 202 with the nuts 205, and tighten the two fixing screws 202 threads on the two nuts 205. When the adjustment part of the fixing screw 202 is damaged and the wrench cannot be engaged with it, use a hexagonal wrench to insert it into the auxiliary groove 206 for adjustment. When removing the nut 205, directly use the punch rod to insert it into the removal hole 207, and then use a hammer to hit the punch rod. At this time, the nut 205 in the installation groove 204 can be quickly removed.

[0040] Although the present application has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the concept and scope of the present application as defined in the appended claims. Although this specification contains many specific implementation details, these should not be interpreted as limitations on the scope of protection claimed in this application, but rather as descriptions of features specific to specific embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A mid-plate structure of an asynchronous motor, characterized by: The motor housing (1) comprises a fixing seat (101) welded on the inner wall of the motor housing (1), the fixing seat (101) is provided with two plug holes (102), each plug hole (102) is plugged with a plug rod (201), and the upper ends of the two plug rods (201) are welded to the middle plate (2); the fixing seat (101) is provided with two mounting grooves (204) on the bottom end surface, both mounting grooves (204) are hexagonal groove structures, and each mounting groove (204) is clamped with a nut (205).

2. The mid-plate structure of an asynchronous motor according to claim 1, characterized in that: The lower ends of the two connecting rods (201) are polished, and after the polishing, the lower ends of the two connecting rods (201) are both arc-shaped structures.

3. The mid-plate structure of an asynchronous motor according to claim 2, characterized in that: The middle plate (2) is provided with three air holes (203) in a circular array, and the three air holes (203) are all circular hole structures.

4. The mid-plate structure of an asynchronous motor according to claim 3, characterized in that: Two fixing screws (202) are inserted into the middle plate (2), and the two fixing screws (202) are threadedly connected to two nuts (205).

5. The mid-plate structure of an asynchronous motor according to claim 4, characterized in that: The adjustment portion of each fixing screw (202) is a hexagonal structure, and an auxiliary groove (206) is provided at the adjustment portion of each fixing screw (202), and the auxiliary groove (206) is a hexagonal groove structure.

6. The mid-plate structure of an asynchronous motor according to claim 5, characterized in that: The top surface of the fixing seat (101) is provided with four disassembly holes (207), the two disassembly holes (207) on the front side are aligned with an auxiliary groove (206) on the front side, and the two disassembly holes (207) on the rear side are aligned with an auxiliary groove (206) on the rear side.

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