A mine-used increased safety type three-phase asynchronous motor

Abstract

This utility model discloses a mining-grade increased-safety three-phase asynchronous motor, relating to the field of mining-grade increased-safety three-phase asynchronous motors. It includes a motor body and a base plate. A connecting block is integrally formed on the bottom of the outer ring of the motor body. A plug-in plate is integrally formed on the end of the connecting block away from the motor body. Locking blocks are movably installed on both sides of the plug-in plate. An installation block is sleeved on the outer ring of the plug-in plate. A limiting plate is provided at the center of the installation block. The limiting plate is slidably installed inside the bottom of the plug-in plate. Locking grooves are formed on both sides of the plug-in plate. With this structure, when the motor vibrates, the damping spring deforms, converting vibration energy into elastic potential energy, thereby absorbing and buffering vibration, reducing the impact of vibration on the motor body and base plate. The damping plate can slide within the damping groove, cooperating with the extension and contraction of the damping spring to achieve a more flexible damping effect, ensuring stable operation of the motor in complex environments such as mines.

Description

Technical Field

[0001] This utility model belongs to the field of mining-use increased safety type three-phase asynchronous motors, and specifically relates to a mining-use increased safety type three-phase asynchronous motor. Background Technology

[0002] In complex operating environments such as mining, motors, as core power equipment, are directly related to production efficiency and operational safety through their safe and stable operation. Mining environments often present adverse factors such as dust, humidity, and vibration, placing stringent requirements on the explosion-proof performance, structural stability, and adaptability of motors. Increased safety three-phase asynchronous motors, due to their excellent explosion-proof characteristics, have become an important choice for mining equipment. With the expansion of mining scale and the increase in mechanization, the requirements for the ease of installation, vibration damping effect, and service life of motors are becoming increasingly stringent. Against this backdrop, the development of increased safety three-phase asynchronous motors for mining, which are adapted to the complex mining environment and can meet the needs of efficient and safe operation, has become a key to promoting the safe and efficient development of the mining industry.

[0003] Existing technologies have specifically developed several safety-enhancing three-phase asynchronous motors for mining. For example, Chinese patent CN205791928U discloses a "portable three-phase asynchronous motor" that features a main frame for easy fixing and storage of the motor, providing a protective layer during use, essentially acting as an external protective shell. A secondary frame cover, adapted to the main frame, is located on one side, forming a complete housing that facilitates easy carrying of the motor and reduces carrying costs. The secondary frame cover also features a rain cap that can be removed and installed on the main frame for enhanced waterproofing. Furthermore, the use of a cooling ventilation box prevents rainwater or sand from entering the main frame, resulting in better heat dissipation and greater ease of use.

[0004] Although the main frame facilitates the fixing and storage of the three-phase asynchronous motor and provides a layer of protection during use, essentially acting as an external protective shell for the motor, and a secondary frame cover adapted to the main frame is provided on one side to form a complete enclosure, making it easy for users to carry the three-phase asynchronous motor for work and greatly reducing carrying costs, the above structure lacks an effective shock absorption structure. Although the fixing ring has shock-absorbing springs, they only provide localized protection. During movement or operation, vibration is directly transmitted to the main frame and motor, which can easily lead to loosening of components. Long-term vibration will accelerate the wear of bearings, oil seals, etc., affecting the stability and lifespan of the motor, and may also cause poor contact in the junction box due to vibration, posing a safety hazard. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a mining-grade increased safety three-phase asynchronous motor to solve the problems of mining-grade increased safety three-phase asynchronous motors.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A mining-grade increased safety three-phase asynchronous motor includes a motor body and a base plate. A connecting block is integrally formed on the bottom of the outer ring of the motor body. A plug-in plate is integrally formed on the end of the connecting block away from the motor body. Snap-in blocks are movably installed on both sides of the inner surface of both ends of the plug-in plate. An installation block is sleeved on the outer ring of the plug-in plate. Slots are formed on both sides of the inner surface of both ends of the plug-in plate, and the snap-in blocks are snapped into the slots. A fixing seat is integrally formed on the upper end of the base plate, and a shock-absorbing structure is provided between the fixing seat and the installation block.

[0008] As a preferred technical solution, the shock absorption structure includes a shock absorption plate, a shock absorption spring, a mounting groove, and a shock absorption channel. The bottom of the mounting block is integrally formed with a shock absorption plate. The end of the fixed seat away from the base plate is provided with a shock absorption channel. Both the shock absorption channel and the end of the shock absorption plate away from the mounting block are provided with multiple mounting grooves. Multiple shock absorption springs are fixedly installed between the multiple mounting grooves on both sides. The shock absorption plate is slidably installed inside the upper end of the fixed seat through the shock absorption channel.

[0009] As a preferred technical solution, a limiting plate is provided at the center of the mounting block, and the limiting plate is slidably installed inside the bottom of the plug-in plate.

[0010] As a preferred technical solution, the plug-in plate has slots on both sides inside its two ends, and a snap-fit ​​spring is fixedly installed inside the slot. The end of the snap-fit ​​spring away from the slot is fixedly installed on the side of the snap-fit ​​block away from the slot.

[0011] As a preferred technical solution, the snap-fit ​​block is movably installed inside both sides of the plug-in plate through a slot and a snap-fit ​​spring, and a limiting groove is provided at the center of the bottom of the plug-in plate.

[0012] As a preferred technical solution, the mounting block has an insertion groove inside at the end away from the fixed base, and the insertion plate is slidably installed inside the upper end of the mounting block through the insertion groove.

[0013] As a preferred technical solution, the limiting plate is located at the center of the mounting block via a slot, and the limiting plate is slidably installed inside the limiting slot.

[0014] In summary, the present invention has the following main advantages:

[0015] First, when the motor vibrates, the damping spring deforms, converting the vibration energy into elastic potential energy, thereby absorbing and buffering the vibration and reducing the impact of vibration on the motor body and base plate. The damping plate can slide in the damping groove, and in conjunction with the extension and retraction of the damping spring, it can achieve a more flexible damping effect, ensuring the stable operation of the motor in complex environments such as mines.

[0016] Secondly, if it is necessary to disassemble the motor body for maintenance or replacement, press the snap block to compress the snap spring and remove it from the snap slot. Then, pull the plug plate out of the plug slot of the mounting block to separate the motor body from the mounting block. The operation is convenient and efficient.

[0017] Third, during the insertion of the plug plate into the mounting block, the snap-fit ​​block contacts the inner wall of the plug slot and is squeezed back into the slot, compressing the snap-fit ​​spring. As the plug plate continues to be inserted, when the snap-fit ​​block moves to the snap-fit ​​position inside the mounting block, the snap-fit ​​spring resets, pushing the snap-fit ​​block out and engaging in the snap-fit ​​slot, thus achieving initial fixation between the plug plate and the mounting block. At the same time, the limiting plate at the center of the mounting block slides into the limiting groove at the center of the bottom of the plug plate, further restricting the up and down movement of the plug plate, ensuring a firm connection between the motor body and the mounting block, and preventing shaking. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the plug-in board of this utility model;

[0020] Figure 3 This is a utility model Figure 2 A magnified structural diagram of part A;

[0021] Figure 4 This is a schematic diagram of the limiting plate structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the shock absorption structure of this utility model.

[0023] Reference numerals in the attached drawings: 1. Motor body; 2. Connecting block; 3. Mounting block; 4. Fixing base; 5. Snap-fit ​​block; 6. Base plate; 7. Limiting groove; 8. Limiting plate; 9. Insertion plate; 10. Insertion groove; 11. Snap-fit ​​groove; 12. Vibration damping structure; 13. Groove; 14. Snap-fit ​​spring; 15. Vibration damping plate; 16. Mounting groove; 17. Vibration damping groove; 18. Vibration damping spring. Detailed Implementation

[0024] Example

[0025] refer to Figures 1-5 This embodiment of a mining-grade increased safety three-phase asynchronous motor includes a motor body 1 and a base plate 6. A connecting block 2 is integrally formed on the bottom of the outer ring of the motor body 1. A plug-in plate 9 is integrally formed on the end of the connecting block 2 away from the motor body 1. Snap-in blocks 5 are movably installed on both sides of the inner surface of both ends of the plug-in plate 9. An installation block 3 is sleeved on the outer ring of the plug-in plate 9. Snap-in grooves 11 are opened on both sides of the inner surface of both ends of the plug-in plate 9. Snap-in blocks 5 are snapped into the grooves 11. A fixing seat 4 is integrally formed on the upper end of the base plate 6. A shock-absorbing structure 12 is provided between the fixing seat 4 and the installation block 3.

[0026] refer to Figures 4 to 5 The vibration damping structure 12 includes a vibration damping plate 15, a vibration damping spring 18, a mounting groove 16, and a vibration damping groove 17. The vibration damping plate 15 is integrally formed at the bottom of the mounting block 3. The end of the fixed seat 4 away from the base plate 6 is provided with a vibration damping groove 17. Both the vibration damping groove 17 and the end of the vibration damping plate 15 away from the mounting block 3 are provided with multiple mounting grooves 16. Multiple vibration damping springs 18 are fixedly installed between the multiple mounting grooves 16 on both sides. The vibration damping plate 15 is slidably installed inside the upper end of the fixed seat 4 through the vibration damping groove 17. When the motor vibrates, the vibration damping spring 18 deforms and converts the vibration energy into elastic potential energy, thereby absorbing and buffering the vibration and reducing the impact of the vibration on the motor body 1 and the base plate 6. The vibration damping plate 15 can slide in the vibration damping groove 17. With the extension and retraction of the vibration damping spring 18, a more flexible vibration damping effect can be achieved, ensuring that the motor operates stably in complex environments such as mines.

[0027] refer to Figure 2 , Figures 3 to 4The plug-in plate 9 has slots 13 on both sides inside its ends. A snap-fit ​​spring 14 is fixedly installed inside the slot 13. The end of the snap-fit ​​spring 14 away from the slot 13 is fixedly installed on the side of the snap-fit ​​block 5 away from the slot 11. The snap-fit ​​block 5 is movably installed inside both sides of the plug-in plate 9 via the slots 13 and the snap-fit ​​spring 14. A limiting groove 7 is provided at the center of the bottom of the plug-in plate 9. A plug-in groove 10 is provided inside the end of the mounting block 3 away from the fixing seat 4. The plug-in plate 9 is slidably installed inside the upper end of the mounting block 3 via the plug-in groove 10. The limiting plate 8 is located at the center of the mounting block 3 via the plug-in groove 10 and is slidably installed inside the limiting groove 7. If it is necessary to disassemble the motor body 1 for maintenance or replacement, the snap-fit ​​block 5 can be pressed to compress the snap-fit ​​spring. Spring 14 is released from slot 11, and then the plug plate 9 is pulled out from the plug slot 10 of mounting block 3, thus separating motor body 1 from mounting block 3. The operation is convenient and efficient. The plug block 5 contacts the inner wall of plug slot 10 and is squeezed back into slot 13. The plug spring 14 is compressed. As plug plate 9 is continuously inserted, when plug block 5 moves to the position of slot 11 inside mounting block 3, the plug spring 14 resets, pushing plug block 5 to pop out and engage in slot 11, thus achieving initial fixation of plug plate 9 and mounting block 3. At the same time, the limiting plate 8 at the center of the mounting block 3 slides into the limiting groove 7 at the bottom center of plug plate 9, further restricting the up and down movement of plug plate 9, ensuring that motor body 1 and mounting block 3 are firmly connected and avoiding shaking.

[0028] Operating principle and advantages: When installing the motor body 1, the connecting block 2 and the integrally formed plug plate 9 at the bottom of the outer ring of the motor body 1 should be aligned with the plug slot 10 of the mounting block 3. Then, the plug plate 9 is inserted into the mounting block 3 along the plug slot 10. In the initial state, the locking blocks 5 on both sides of the plug plate 9 are partially extended out of the slot 13 by the elastic force of the locking spring 14 in the slot 13. When the plug plate 9 is inserted into the mounting block 3, the locking blocks 5 contact the inner wall of the plug slot 10 and are squeezed back into the slot. Inside port 13, the snap-fit ​​spring 14 is compressed. As the plug-in plate 9 is continuously inserted, when the snap-fit ​​block 5 moves to the snap-fit ​​groove 11 inside the mounting block 3, the snap-fit ​​spring 14 resets, pushing the snap-fit ​​block 5 out and engaging in the snap-fit ​​groove 11, thus achieving initial fixation between the plug-in plate 9 and the mounting block 3. At the same time, the limiting plate 8 at the center of the mounting block 3 slides into the limiting groove 7 at the bottom center of the plug-in plate 9, further restricting the up-and-down movement of the plug-in plate 9, ensuring a firm connection between the motor body 1 and the mounting block 3, and preventing shaking. When the motor is working, the vibration generated is transmitted to the damping structure 12 at the bottom through the mounting block 3. The damping plate 15 at the bottom of the mounting block 3 is located in the damping groove 17 at the upper end of the fixed base 4. The damping groove 17 and the damping plate 15 at the end away from the mounting block 3 are provided with multiple placement grooves 16. Multiple damping springs 18 between the two placement grooves 16 are compressed or stretched under the action of vibration. When the motor vibrates, the damping springs 18 deform and convert the vibration energy into elastic potential energy, thereby absorbing and buffering the vibration and reducing the impact of vibration on the motor body 1 and the base plate 6. The damping plate 15 can slide in the damping groove 17. With the extension and retraction of the damping springs 18, a more flexible damping effect can be achieved, ensuring that the motor operates stably in complex environments such as mines. If it is necessary to disassemble the motor body 1 for maintenance or replacement, the locking block 5 can be pressed to compress the locking spring 14 and exit the locking groove 11. Then, the plug plate 9 can be pulled out from the plug groove 10 of the mounting block 3 to separate the motor body 1 from the mounting block 3. The operation is convenient and efficient.

Claims

1. A mine safety lamp three-phase asynchronous motor comprising a motor body (1) and a base plate (6), characterized in that: The motor body (1) has a connecting block (2) integrally formed at the bottom of the outer ring. The end of the connecting block (2) away from the motor body (1) has an integrally formed plug plate (9). Both ends of the plug plate (9) have movable snap-fit ​​blocks (5) installed on both sides. The plug plate (9) has an installation block (3) sleeved on the outer ring. Both ends of the plug plate (9) have slots (11) opened on both sides. The snap-fit ​​blocks (5) are snapped into the slots (11). The bottom plate (6) has a fixed seat (4) integrally formed at the top. A shock-absorbing structure (12) is provided between the fixed seat (4) and the installation block (3).

2. A mining-grade increased-safety three-phase asynchronous motor according to claim 1, characterized in that: The damping structure (12) includes a damping plate (15), a damping spring (18), a mounting groove (16), and a damping groove (17). The bottom of the mounting block (3) is integrally formed with a damping plate (15). The fixed seat (4) is provided with a damping groove (17) at one end away from the bottom plate (6). Both the damping groove (17) and the damping plate (15) at one end away from the mounting block (3) are provided with multiple mounting grooves (16). Multiple damping springs (18) are fixedly installed between the multiple mounting grooves (16) on both sides. The damping plate (15) is slidably installed inside the upper end of the fixed seat (4) through the damping groove (17).

3. A mining-grade increased-safety three-phase asynchronous motor according to claim 1, characterized in that: The mounting block (3) has a limiting plate (8) at its center, and the limiting plate (8) is slidably installed in the bottom of the plug-in plate (9).

4. A mining-grade increased-safety three-phase asynchronous motor according to claim 1, characterized in that: The plug plate (9) has slots (13) on both sides inside. A snap-fit ​​spring (14) is fixedly installed inside the slot (13). The end of the snap-fit ​​spring (14) away from the slot (13) is fixedly installed on the side of the snap-fit ​​block (5) away from the slot (11).

5. A mining-grade increased-safety three-phase asynchronous motor according to claim 4, characterized in that: The snap-fit ​​block (5) is movably installed inside both sides of the plug plate (9) through the slot (13) and snap-fit ​​spring (14). The plug plate (9) has a limiting groove (7) at the bottom center.

6. A mining-grade increased-safety three-phase asynchronous motor according to claim 5, characterized in that: The mounting block (3) has a plug-in groove (10) inside the end away from the fixed seat (4), and the plug-in plate (9) is slidably installed inside the upper end of the mounting block (3) through the plug-in groove (10).

7. A mining-grade increased-safety three-phase asynchronous motor according to claim 3, characterized in that: The limiting plate (8) is located at the center of the mounting block (3) via the insertion groove (10), and the limiting plate (8) is slidably installed inside the limiting groove (7).

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