Motor with winding outgoing line side insulation protection structure

Abstract

The utility model relates to the technical field of motors, in particular to a motor with a winding outgoing line side insulation protection structure, which comprises a motor casing, a winding assembly is mounted in the motor casing, a plurality of positioning pins are arranged around the edge of the front end of the winding assembly, shock-resistant supports which are symmetrically distributed front and back are arranged at the bottom of the motor casing, and the shock-resistant supports are arranged on the bottom of the motor casing. The top of the anti-seismic support is provided with a supporting plate used for installing a motor shell, the four corners of the bottom of the supporting plate are provided with pressing rods penetrating through the upper edge of the anti-seismic support, the anti-seismic support is internally and symmetrically provided with damping cylinders arranged outside the bottom ends of the pressing rods in a sleeving mode, and a plurality of buffering elements are arranged on the inner wall of the motor shell in a surrounding mode. The motor with the winding outgoing line side insulation protection structure can reduce insulation material fatigue and damage caused by vibration, effectively improve the insulation protection capability of the motor winding outgoing line side, reduce motor faults and safety accidents caused by insulation damage, and ensure reliable operation of equipment under extreme working conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor with an insulation protection structure on a winding outlet side. Background Art

[0002] The motor winding lead refers to the end of the motor's internal winding wire, which extends from the winding itself and is used to connect to the external circuit. The motor winding lead is not only related to the basic operation of the motor, but also closely related to the motor's control strategy, protection mechanism, performance optimization, and adaptability to specific environments. It is an important part of motor design and application that cannot be ignored.

[0003] In heavy industrial fields such as electricity, chemical industry and mining, the operating environment of motors is extremely harsh. They are frequently faced with high voltage loads, high temperature operations and complex and harsh conditions. In particular, the winding outlet of the motor is a key interface for power conversion. The voltage stress is particularly concentrated, which can easily cause damage to the insulation material and lead to motor failure. Although modern motor designs have incorporated standard insulation measures, the insulation protection on the winding outlet side is still fragile in extreme working scenarios. In particular, continuous mechanical vibration accelerates the loss and fatigue of the insulation material, gradually eroding its protective performance, thereby exacerbating the risk of equipment failure. Utility Model Content

[0004] The purpose of the utility model is to provide a motor with an insulation protection structure on the winding outlet side, so as to solve the problem raised in the above background technology that the current heavy industrial motors are operated in severe environments (high voltage, high temperature, harsh conditions), and the winding outlet side is easily damaged by insulation due to voltage stress concentration, causing failures, and the existing insulation measures are not sufficient to cope with extreme conditions. Mechanical vibration further promotes rapid aging of insulation materials, exacerbating the risk of failure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric motor with an insulating protection structure on the winding outlet side, comprising a motor casing, a winding assembly is installed inside the motor casing, a plurality of positioning pins are arranged around the edge of the front end of the winding assembly, a seismic-resistant bracket is arranged at the bottom of the motor casing and is symmetrically distributed front and back, a support plate for installing the motor casing is arranged at the top of the seismic-resistant bracket, pressure rods passing through the upper edge of the seismic-resistant bracket are arranged at the four corners of the bottom of the support plate, shock-absorbing cylinders which are symmetrically arranged inside the seismic-resistant bracket and are sleeved on the outside of the bottom end of the pressure rods, and a plurality of buffer elements are arranged around the inner wall of the motor casing.

[0006] Preferably, a shock-absorbing pad is provided at the bottom end of the shock-absorbing cylinder, and the bottom end of the pressure rod is pressed against the top of the shock-absorbing pad.

[0007] Preferably, a shock-absorbing sleeve is provided on the outer sleeve of the upper end of the compression rod, and the upper and lower ends of the shock-absorbing sleeve are respectively fitted with the bottom of the support plate and the top of the anti-seismic bracket.

[0008] Preferably, clamping plates are provided on both sides of the top of the anti-seismic bracket, and the bottom end of the clamping plate is provided with a stud inserted into the interior of the anti-seismic bracket, and the outside of the stud is connected with a locking nut through a threaded structure.

[0009] Preferably, a transverse axis is inserted through the top end of the shock-absorbing cylinder, and a through hole matching the transverse axis structure is provided at the bottom end of the pressure rod.

[0010] Preferably, four buffer elements are provided and distributed in a circular shape, and the buffer elements are rubber pads with an arc-shaped structure.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the motor with the insulation protection structure on the winding outlet side can reduce the fatigue and damage of the insulation material caused by vibration, effectively improve the insulation protection capability of the motor winding outlet side, reduce motor failures and safety accidents caused by insulation damage, and ensure the reliable operation of the equipment under extreme working conditions. The motor with the insulation protection structure on the winding outlet side is provided with two anti-vibration brackets at the bottom. After the anti-vibration brackets are installed on the motor housing through the support plate at the top, the support plate can absorb and disperse part of the mechanical vibration force through the cooperation of the pressure rod, shock-absorbing cylinder, shock-absorbing sleeve, shock-absorbing pad, buffer element and other components, thereby reducing the fatigue and damage of the external insulation material of the winding component caused by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of a motor structure with an insulation protection structure on the winding outlet side of the utility model;

[0013] Figure 2 It is a side view structural schematic diagram of a motor with a winding outlet side insulation protection structure according to the utility model;

[0014] Figure 3 The utility model is a schematic diagram of the assembly structure of an anti-seismic bracket of a motor with an insulation protection structure on the winding outlet side.

[0015] In the figure: 1. motor housing; 2. winding assembly; 3. buffer element; 4. positioning pin; 5. support plate; 6. seismic bracket; 7. pressure rod; 8. shock-absorbing cylinder; 9. shock-absorbing sleeve; 10. horizontal axis; 11. shock-absorbing pad; 12. clamping plate; 13. stud; 14. locking nut. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3The utility model provides a technical solution: a motor with an insulation protection structure on the winding outlet side, including a motor casing 1, a winding assembly 2 is installed inside the motor casing 1, and the outside of the winding assembly 2 is wrapped with two layers of inner and outer insulating materials, the inner layer is a high temperature resistant, high mechanical strength H-class insulating paint, and the outer layer is an oil-resistant, wear-resistant composite insulating sleeve, forming a double protection, effectively resisting corona discharge and partial discharge, the edge of the front end of the winding assembly 2 is surrounded by four locating pins 4 through the threaded sleeve, and four locating holes that match the locating pin 4 structure are arranged on the inner wall of the front end edge of the motor casing 1, and the bottom of the motor casing 1 is provided with a seismic bracket 6 symmetrically distributed front and back, and the seismic bracket 6 is a U-shaped groove steel structure, and the top of the seismic bracket 6 is provided with a motor for installing The support plate 5 of the casing 1 is installed, and both sides of the bottom of the motor casing 1 are fixed to the top of the support plate 5 by bending frames and bolts. The four corners of the bottom of the support plate 5 are welded and fixed with a pressure rod 7 that runs through the upper edge of the seismic bracket 6. The upper edge of the seismic bracket 6 is symmetrically provided with perforations that match the pressure rod 7. The inside of the seismic bracket 6 is symmetrically provided with a shock-absorbing cylinder 8 that is sleeved on the outside of the bottom end of the pressure rod 7. The bottom of the shock-absorbing cylinder 8 is welded and fixed to the top surface of the bottom edge of the motor casing 1, and four buffer elements 3 are bonded and fixed around the inner wall of the motor casing 1. The buffer elements 3 are provided with four and are distributed in a surrounding shape, and the buffer elements 3 are rubber pads with an arc structure. The motor casing 1 of this structure can be placed between two seismic brackets by being fixed on the support plate 5. 6, when the motor housing 1 is subjected to the mechanical vibration force generated during operation, the support plate 5 will drive the pressure rod 7 to slide on the upper edge of the anti-seismic bracket 6 and extend into the interior of the shock-absorbing cylinder 8. At this time, the support plate 5 can absorb and disperse the mechanical vibration force generated under the cooperation of the pressure rod 7 and the shock-absorbing cylinder 8, and the buffer element 3 can also absorb a part of the mechanical vibration inside the motor housing 1, thereby reducing the fatigue and damage of the external insulating material of the winding assembly 2 caused by vibration, effectively improving the insulation protection capability of the motor winding outlet side, reducing motor failures and safety accidents caused by insulation damage, and ensuring the reliable operation of the equipment under extreme working conditions. A shock-absorbing pad 11 is provided at the bottom end of the shock-absorbing cylinder 8, and the bottom end of the pressure rod 7 is pressed against the top of the shock-absorbing pad 11. When the bottom end of the pressure rod 7 of the structure extends into the interior of the shock-absorbing cylinder 8, the shock-absorbing pad 11 will be squeezed, so that the shock-absorbing cylinder 8 can play a shock-absorbing role on the pressure rod 7. The outer sleeve of the upper end of the pressure rod 7 is provided with a shock-absorbing sleeve 9, and the upper and lower ends of the shock-absorbing sleeve 9 are respectively fitted with the bottom of the support plate 5 and the top of the anti-seismic bracket 6. The shock-absorbing sleeve 9 of this structure can be elastically supported between the bottom of the support plate 5 and the top of the anti-seismic bracket 6, which can also decompose the mechanical vibration force on the winding assembly 2. Clamping plates 12 are provided on both sides of the top of the anti-seismic bracket 6. The top of the clamping plate 12 is a bent structure and a pressing port is provided on the inner wall. The bottom end of the clamping plate 12 is provided with a stud 13 inserted into the interior of the anti-seismic bracket 6, and both sides of the anti-seismic bracket 6 are also provided with through holes that match the stud 13.The outside of the stud 13 is connected with a locking nut 14 through a threaded structure. The clamping plate 12 of this structure can be installed on both sides of the anti-seismic bracket 6 by matching the stud 13 with the locking nut 14. In this way, the clamping plate 12 can press the top end on the bending frames on both sides of the bottom of the motor housing 1 to improve the stability of the motor housing 1 installed on the support plate 5. The top of the shock-absorbing cylinder 8 is interspersed with a horizontal axis 10, and the bottom end of the pressure rod 7 is provided with a circular hole that matches the horizontal axis 10 structure. The horizontal axis 10 of this structure can pass through the circular hole at the bottom end of the pressure rod 7 to connect and limit the pressure rod 7 and the shock-absorbing cylinder 8, which is conducive to further stabilizing the support plate 5 on the top of the anti-seismic bracket 6.

[0018] Working principle: When using the motor with the insulation protection structure on the winding outlet side, first place the winding assembly 2 inside the motor housing 1 and squeeze the buffer element 3. After the buffer element 3 is subjected to force, it will shrink to a certain extent until the winding assembly 2 is installed in a suitable position inside the motor housing 1. Then, rotate the four positioning pins 4 at the edge of the front end of the winding assembly 2 to turn the outer ends of the positioning pins 4 into the positioning holes on the inner wall of the front edge of the motor housing 1. At this time, the motor housing 1 is fixedly installed on the top of the support plate 5 through the bending frames and bolts on both sides of the bottom. When the motor After the overall installation of the casing 1 is completed, the two clamping plates 12 are installed on both sides of the seismic bracket 6 through the studs 13 and the locking nuts 14. When the clamping plate 12 is installed, its top is pressed on the bending frames on both sides of the bottom of the motor casing 1. When the motor casing 1 is subjected to the mechanical vibration force generated during operation, the support plate 5 will drive the pressure rod 7 to slide on the upper edge of the seismic bracket 6 and extend into the interior of the shock-absorbing cylinder 8 and squeeze the shock-absorbing pad 11, and the shock-absorbing sleeve 9 will also generate a certain degree of compression between the bottom of the support plate 5 and the top of the seismic bracket 6. At this time, the support plate 5 can absorb and disperse the mechanical vibration force generated under multiple elastic forces, and the buffer element 3 will also absorb part of the mechanical vibration inside the motor casing 1, effectively improving the insulation protection capability of the motor winding outlet side, thereby completing a series of tasks.

[0019] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor with an insulation protection structure on the winding outlet side, comprising a motor housing (1), a winding assembly (2) being installed inside the motor housing (1), a plurality of positioning pins (4) being arranged around the edge of the front end of the winding assembly (2), characterized in that: The bottom of the motor housing (1) is provided with anti-seismic brackets (6) symmetrically distributed front and back, the top of the anti-seismic bracket (6) is provided with a support plate (5) for mounting the motor housing (1), the four corners of the bottom of the support plate (5) are provided with pressure rods (7) penetrating the upper edge of the anti-seismic bracket (6), the interior of the anti-seismic bracket (6) is symmetrically provided with shock-absorbing cylinders (8) sleeved on the outside of the bottom end of the pressure rods (7), and a plurality of buffer elements (3) are arranged around the inner wall of the motor housing (1).

2. The motor with the winding outlet side insulation protection structure according to claim 1, characterized in that: A shock absorbing pad (11) is provided at the bottom end of the shock absorbing cylinder (8), and the bottom end of the pressure rod (7) is pressed against the top of the shock absorbing pad (11).

3. The motor with the winding outlet side insulation protection structure according to claim 1, characterized in that: The outer sleeve of the upper end of the compression rod (7) is provided with a shock-absorbing sleeve (9), and the upper and lower ends of the shock-absorbing sleeve (9) are respectively fitted with the bottom of the support plate (5) and the top of the anti-seismic bracket (6).

4. The motor with the winding outlet side insulation protection structure according to claim 1, characterized in that: The top of the anti-seismic bracket (6) is provided with a clamping plate (12) on both sides, and the bottom of the clamping plate (12) is provided with a stud (13) inserted into the interior of the anti-seismic bracket (6), and the outside of the stud (13) is connected to a locking nut (14) via a threaded structure.

5. The motor with the winding outlet side insulation protection structure according to claim 1, characterized in that: A transverse axis (10) is inserted through the top end of the shock-absorbing cylinder (8), and a through hole matching the structure of the transverse axis (10) is provided at the bottom end of the pressure rod (7).

6. The motor with the winding outlet side insulation protection structure according to claim 1, characterized in that: The buffer elements (3) are provided with four and are distributed in a circumferential shape, and the buffer elements (3) are rubber pads with an arc-shaped structure.

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