Highly reliable construction machinery motor

Abstract

The utility model relates to high reliability engineering machinery motor, including the upper end center position of motor upper end cover is equipped with round hole, bearing connection rotating shaft in round hole, motor upper end cover downside fixed cover connects motor lower end cover, the lower end fixed connection fixed sheet of motor lower end cover, the fixed sheet center position is equipped with through -hole, is equipped with base in through -hole, the lower end downside of motor lower end cover cover is equipped with connecting line hole, is equipped with line protection pipe in connecting line hole, the inboard of motor upper end cover and motor lower end cover is equipped with motor structure, motor structure includes stator and rotor, the inboard bearing of stator connects rotor, the upper end fixed connection rotating shaft of rotor, through motor upper end cover and motor lower end cover screw thread connection combination forms a globular motor, protects inside motor structure, then sets up line protection pipe and ensures safety factor, sets up the protection frame and protects stator and rotor, waterproof dustproof effect is good, adapts engineering machinery complex environment work, and the reliability is good.

Description

Technical Field

[0001] This utility model relates to the field of motor equipment technology, and in particular to high-reliability engineering machinery motors. Background Technology

[0002] Construction machinery motors are typically designed as high-voltage motors to meet the high power requirements of large machinery. Since the working environment of construction machinery is often harsh, the motors need to have high reliability and durability, and they need to be able to work normally in various environments, including high temperature, humidity, and dust.

[0003] Existing construction machinery motors are all of standard motor size and have low protection levels, making it impossible to prevent moisture and dust from entering the motor. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by forming a spherical motor through the threaded connection of the upper and lower end covers of the motor, thereby protecting the internal motor structure. Then, a circuit protection tube is set to ensure a safety factor, and a protective frame is set to protect the stator and rotor. This solves the technical problems of existing motors having low protection level, poor environmental adaptability, high maintenance cost, and short life.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-reliability engineering machinery motor includes an upper motor cover, a circular hole at the center of the upper end of the upper motor cover, a bearing connecting a rotating shaft inside the circular hole, a lower fixed cover connecting the lower motor cover, a fixed plate fixedly connected to the lower end of the lower motor cover, a through hole at the center of the fixed plate, a base inside the through hole, and a connecting wire hole at the lower front end of the lower motor cover, with a line protection tube inside the connecting wire hole; a motor structure is provided inside the upper and lower motor covers.

[0007] The motor structure includes a stator and a rotor. The stator includes a stator core and a stator winding. The rotor includes a rotor core and a rotor winding. The rotor is connected to the inner side of the stator by a bearing. The upper end of the rotor is fixedly connected to a rotating shaft.

[0008] As a preferred embodiment, a cylindrical block is fixedly connected to the inner side of the stator, a rotor is connected to the inner side of the cylindrical block by a bearing, a protective frame is fixedly connected to the outer side of the upper end of the cylindrical block, and the stator is fixedly connected to the lower side of the protective frame.

[0009] As a preferred embodiment, a supporting cylindrical ring is fixedly connected to the center of the inner side of the lower end cover of the motor, the upper end bearing of the supporting cylindrical ring is connected to the rotor, the rotating shaft extends out of the lower end of the cylindrical block, and the lower end bearing of the rotating shaft is connected to the base.

[0010] As a preferred embodiment, a limiting plate is fixedly connected to the upper end of the line protection tube. The limiting plate is one-sixth of a circle, and a connecting hole is provided at the center of the outer side of the limiting plate. The connecting hole coincides with the connecting wire hole. A silent connecting cotton piece is provided on the rear side of the limiting plate, and the lower end of the silent connecting cotton piece is fixedly connected to the lower end cover of the motor.

[0011] As a preferred embodiment, the upper end cover of the motor is provided with a ring of heat sinks on the outside, and the upper end cover of the motor is threadedly connected to the lower end cover of the motor. The upper end cover of the motor and the lower end cover of the motor are combined to form a spherical motor housing.

[0012] As another preferred option, the line protection tube is a rubber hose.

[0013] The beneficial effects of this utility model are:

[0014] (1) In this utility model, by setting an upper end cover and a lower end cover of the motor, a spherical motor housing is formed by the upper end cover and the lower end cover of the motor. A fixing piece is set at the lower end to facilitate the fixing of the motor. The spherical motor housing saves more space than the conventional motor shape, has a wide range of applications, and is more suitable for the field of engineering machinery.

[0015] (2) In this utility model, a protective frame is set inside the upper end cover and lower end cover of the motor. Moreover, the protective frame is hollow, has strong impact resistance, and is lightweight. It can also protect the internal stator and rotor, and is suitable for different engineering machinery working environments.

[0016] (3) In this utility model, by setting up a line protection tube, the line protection tube is made of rubber hose, which can protect the motor connection line and does not have width requirements for its installation position. It has a wide range of applications. Moreover, by using the line protection tube to connect the internal and external lines of the motor, the entire motor has a good waterproof and dustproof effect.

[0017] In summary, this motor has the advantages of good waterproof and dustproof performance, adaptability to the complex environment of engineering machinery, high reliability, and wide range of installation adaptability, making it particularly suitable for the field of motor equipment technology. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the rotating shaft in this utility model.

[0021] Figure 3 This is a schematic diagram of the protective frame in this utility model.

[0022] Figure 4 This is a schematic diagram of the stator and rotor of this utility model.

[0023] Figure 5 This is a schematic diagram of the supporting cylindrical ring in this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the limiting piece in this utility model. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0026] Example 1

[0027] like Figures 1 to 6 As shown, this utility model provides a high-reliability engineering machinery motor, including an upper motor cover 1. A circular hole is provided at the center of the upper end of the upper motor cover 1. A rotating shaft 2 is connected to the bearing in the circular hole. A lower motor cover 3 is fixedly connected to the lower side of the upper motor cover 1. A fixing plate 4 is fixedly connected to the lower end of the lower motor cover 3. A through hole 41 is provided at the center of the fixing plate 4. A base 5 is provided in the through hole 41. A connecting wire hole 31 is provided on the lower front side of the lower motor cover 3. A line protection tube 32 is provided in the connecting wire hole 31. A motor structure 6 is provided inside the upper motor cover 1 and the lower motor cover 3.

[0028] The motor structure 6 includes a stator 61 and a rotor 62. The stator 61 includes a stator core and a stator winding, and the rotor 62 includes a rotor core and a rotor winding. The rotor 62 is connected to the inner side of the stator 61 by a bearing, and the upper end of the rotor 62 is fixedly connected to a rotating shaft 2.

[0029] Furthermore, a cylindrical block 63 is fixedly connected to the inner side of the stator 61, and a rotor 62 is connected to the inner side of the cylindrical block 63 by a bearing. A protective frame 64 is fixedly connected to the outer side of the upper end of the cylindrical block 63, and the stator 61 is fixedly connected to the lower side of the protective frame 64. By setting the cylindrical block 63, the rotor 62 runs more stably, the rotating shaft 2 rotates more stably, and the operation reliability is high. Moreover, the protective frame 64 is set. The protective frame adopts an arc-shaped hollow shape and is fixedly connected to the outer side of the stator 61, which can protect the rotor 62 inside, with good impact resistance and light overall weight.

[0030] Furthermore, a supporting cylindrical ring 33 is fixedly connected to the center of the inner side of the lower end cover 3 of the motor. The upper end of the supporting cylindrical ring 33 is connected to the rotor 62 by a bearing. The rotating shaft 2 extends out from the lower end of the cylindrical block 63, and the lower end of the rotating shaft 2 is connected to the base 5 by a bearing. The supporting cylindrical ring 33 is set up to make the installation and operation of the motor rotor 62 more stable. The rotating shaft 2 is also connected to the base 5 by a bearing, which makes the rotation of the rotating shaft 2 more stable and the reliability of the motor stronger.

[0031] Furthermore, a limiting piece 34 is fixedly connected to the upper end of the line protection tube 32. The limiting piece 34 is one-sixth of a circle, and a connecting hole is provided at the center of the outer side of the limiting piece 34. The connecting hole coincides with the connecting wire hole 31. A silent connecting cotton piece 35 is provided on the rear side of the limiting piece 34. The lower end of the silent connecting cotton piece 35 is fixedly connected to the lower end cover 3 of the motor. The limiting piece 34 ensures good sealing performance at the connection position of the line protection tube 32. Moreover, in conjunction with the silent connecting cotton piece 35, it prevents the inner side of the lower end cover 3 of the motor from being uneven, which can prevent vibration from being amplified through resonance through the motor housing and reduce the overall noise level. In addition, the porous structure of the cotton piece can absorb high-frequency sound waves such as electromagnetic noise and bearing friction noise inside the motor, reducing the transmission of noise outward. Most importantly, the cotton piece can disperse the mechanical vibration energy between the rotor and stator, preventing vibration from being directly transmitted to the outer casing or mounting structure, suppressing the resonance phenomenon between the motor and surrounding components, and improving the operational stability of the equipment.

[0032] Furthermore, a heat sink 11 is provided on the outer side of the upper end cover 1 of the motor, and the upper end cover 1 of the motor is threadedly connected to the lower end cover 3 of the motor. The upper end cover 1 of the motor and the lower end cover 3 of the motor are combined to form a spherical motor shell. The mass distribution of the spherical rotor is more uniform, and the response speed of starting and stopping is faster than that of the traditional cylindrical motor. The surface area to volume ratio of the spherical shell is better, the heat distribution is uniform, avoiding local overheating, and the anti-interference and reliability are enhanced.

[0033] Furthermore, the line protection tube 32 is a rubber hose, which is compatible with spherical motors and has a wider range of installation applications.

[0034] Working process: First, the rotating shaft 2 is fixedly connected to the center of the base 5. The rotor 62 is connected to the outside of the center of the rotating shaft 2. The cylindrical block 63 is movably connected to the outside of the rotor. The stator 61 is connected to the outside of the cylindrical block 63. The protective frame 64 is fixedly connected to the upper end of the stator 61 to protect the entire motor structure 6. Then, the rotating shaft 2 is connected to the protective frame 62 by bearings, making the operation of the rotating shaft 2 more stable. The upper end cover 1 and the lower end cover 3 of the motor are set on the outside of the stator 61. The upper end cover 1 and the lower end cover 3 of the motor form a spherical shape. The surface area to volume ratio of the spherical shell is better, the heat is evenly distributed, local overheating is avoided, and the anti-interference and reliability are enhanced.

[0035] In the description of this utility model, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0036] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0037] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A high-reliability engineering machinery motor, characterized in that: include The upper end cover (1) of the motor has a circular hole at the center of the upper end of the motor. The bearing in the circular hole is connected to the rotating shaft (2). The lower end cover of the upper end cover (1) of the motor is connected to the lower end cover (3). The lower end of the lower end cover (3) of the motor is fixedly connected to the fixing plate (4). The center of the fixing plate (4) has a through hole (41). The through hole (41) has a base (5). The lower end of the front end cover (3) of the motor has a connecting wire hole (31). The connecting wire hole (31) has a line protection tube (32). The motor structure (6) is provided inside the upper end cover (1) and the lower end cover (3). The motor structure (6) includes a stator (61) and a rotor (62). The stator (61) includes a stator core and a stator winding. The rotor (62) includes a rotor core and a rotor winding. The rotor (62) is connected to the inner bearing of the stator (61). The upper end of the rotor (62) is fixedly connected to the rotating shaft (2).

2. The high-reliability engineering machinery motor according to claim 1, characterized in that, The stator (61) is fixedly connected to the inner side of the cylindrical block (63), the rotor (62) is connected to the inner side of the cylindrical block (63) by a bearing, and the upper outer side of the cylindrical block (63) is fixedly connected to the protective frame (64), and the lower side of the protective frame (64) is fixedly connected to the stator (61).

3. The high-reliability engineering machinery motor according to claim 2, characterized in that, The lower end cover (3) of the motor is fixedly connected to the center of the inner side of the support cylindrical ring (33), the upper end bearing of the support cylindrical ring (33) is connected to the rotor (62), the rotating shaft (2) extends out of the lower end of the cylindrical block (63), and the lower end bearing of the rotating shaft (2) is connected to the base (5).

4. The high-reliability engineering machinery motor according to claim 1, characterized in that, The upper end of the line protection tube (32) is fixedly connected to the limiting piece (34). The limiting piece (34) is one-sixth of a circle, and a connecting hole is provided at the center of the outer side of the limiting piece (34). The connecting hole coincides with the connecting wire hole (31). A silent connecting cotton piece (35) is provided on the rear side of the limiting piece (34). The lower end of the silent connecting cotton piece (35) is fixedly connected to the lower end cover (3) of the motor.

5. The high-reliability engineering machinery motor according to claim 1, characterized in that, The upper end cover (1) of the motor is provided with a ring of heat sink (11) on the outside, and the upper end cover (1) of the motor is threadedly connected to the lower end cover (3) of the motor. The upper end cover (1) of the motor and the lower end cover (3) of the motor are combined to form a spherical motor housing.

6. The high-reliability engineering machinery motor according to claim 1, characterized in that, The line protection pipe (32) is a rubber hose.

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