High-efficiency explosion-proof three-phase asynchronous motor

Abstract

The utility model discloses a high-efficiency explosion-proof three-phase asynchronous motor, which belongs to the explosion-proof field of three-phase asynchronous motors, and comprises a damping assembly and a heat dissipation assembly, the damping assembly comprises a motor casing, the front end of the motor casing is detachably connected with a front cover, the surface of the front cover is sleeved with a sealing gasket, and the front cover is internally provided with a buffer sleeve; a plurality of shock pads are installed at the lower end of the motor shell, the lower ends of the plurality of shock pads are fixedly connected with suckers, a rotor is installed in the motor shell, a stator is installed in the rotor, and a rotating shaft is installed in the stator. Explosion caused by too high temperature of internal elements is avoided, the explosion-proof performance of the motor is improved, meanwhile, a damping and buffering effect can be achieved on the three-phase asynchronous motor, the internal elements of the motor are prevented from being damaged, and the service life of the motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of explosion-proof three-phase asynchronous motors, in particular to a high-efficiency explosion-proof three-phase asynchronous motor. Background Art

[0002] The speed of the rotor of the three-phase asynchronous motor is lower than the speed of the rotating magnetic field. The rotor winding generates electromotive force and current due to the relative motion between the rotor winding and the magnetic field, and interacts with the magnetic field to generate electromagnetic torque to achieve energy conversion. During the operation of the motor, in order to improve the safety of use, it is necessary to improve the explosion-proof performance of the motor. Among them, the "a new composite explosion-proof vibration source three-phase asynchronous motor" disclosed in the application number "CN202122888776.X" is also an increasingly mature technology. Its "the utility model is a new composite explosion-proof vibration source three-phase asynchronous motor, which designs the junction box and the base as an integrated structure to reduce the dust and gas explosion-proof joint surface and improve the explosion-proof safety. At the same time, the part connecting the junction box and the base is connected to the junction box when the lead is introduced from the inner cavity of the base into the junction box. The inner cavity adopts a glue sealing structure to divide the base cavity and the junction box cavity into two independent flameproof cavities, reduce the volume of the explosion-proof cavity, and reduce safety risks. However, the three-phase asynchronous motor still has the following defects during use: the three-phase asynchronous motor can indeed achieve explosion-proof effect through the set junction box and base integrated structure in conjunction with vibration source and other structures, but the source of the motor explosion is mostly caused by excessive temperature. Based on this, it is necessary to provide a three-phase asynchronous motor that can facilitate ventilation and heat dissipation to further improve the explosion-proof effect. In addition, the three-phase asynchronous motor is not convenient for overall shock absorption and protection when in use, which may cause damage to the motor. Based on this, it is necessary to provide a three-phase asynchronous motor that can achieve shock absorption and protection and extend the service life. Utility Model Content

[0003] The embodiment of the utility model provides a high-efficiency explosion-proof three-phase asynchronous motor, aiming to solve the problem that the explosion-proof performance of the existing three-phase asynchronous motor needs to be improved and it is not convenient to perform vibration reduction protection on the motor.

[0004] To achieve the above object, the utility model provides a high-efficiency explosion-proof three-phase asynchronous motor, including a shock absorbing component and a heat dissipation component;

[0005] The shock absorbing assembly comprises a motor housing, a front cover is detachably connected to the front end of the motor housing, a sealing gasket is sleeved on the surface of the front cover, a buffer sleeve is installed inside the front cover, a plurality of shock absorbing pads are installed at the lower end of the motor housing, and a suction cup is fixedly connected to the lower ends of the plurality of shock absorbing pads, a rotor is installed inside the motor housing, a stator is installed inside the rotor, a rotating shaft is installed inside the stator, and the rotating shaft passes through the buffer sleeve and is plugged into the inside of the front cover;

[0006] The heat dissipation assembly includes a fixed ring installed at the rear end of the motor housing, a heat dissipation fan is installed inside the fixed ring, a dust net is installed inside the fixed ring, a protective cylinder is installed inside the motor housing, three liquid storage tanks are opened inside the protective cylinder, a number of springs are embedded inside the protective cylinder, and the rotor is installed inside the protective cylinder.

[0007] As a preferred solution of the utility model, a plurality of connecting plates are fixedly connected to the lower end of the motor housing, and plug holes are provided on the surfaces of the plurality of connecting plates. A plug rod is fixedly connected to the upper end of the shock absorbing pad, and the plug rod is plugged into the inside of the plug hole.

[0008] As a preferred solution of the utility model, three ear blocks are fixedly connected to the side surface of the front cover, and a plurality of screw holes are provided on the surfaces of the three ear blocks and the front end of the motor housing, and bolts are threadedly connected inside the plurality of screw holes.

[0009] As a preferred solution of the utility model, a fixing groove is provided at the rear end of the motor housing, and the fixing ring is installed inside the fixing groove.

[0010] As a preferred solution of the utility model, a plurality of strip grooves are equidistantly formed on the side surface of the protective tube, and a plurality of the springs are installed inside the strip grooves.

[0011] As a preferred solution of the utility model, the side surface of the protective tube is provided with a plurality of water inlets, the plurality of water inlets are connected to the liquid storage tank, and sealing plugs are inserted into the interior of the water inlets.

[0012] As a preferred solution of the utility model, the protective tube, the buffer sleeve, the shock-absorbing pad and the suction cup are all made of rubber.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When improving the explosion-proof performance of the three-phase asynchronous motor, the motor shell with an integrated structure can enhance its own explosion-proof performance, and at the same time, the coolant is stored in a plurality of liquid storage tanks, and the coolant in the liquid storage tanks can absorb the heat generated when the three-phase asynchronous motor is working, and initially play a heat dissipation effect. At the same time, the micro motor that starts the heat dissipation fan can transport the outside air into the motor shell to achieve the purpose of heat exchange, and further play a heat dissipation effect. Compared with the explosion-proof structure in the prior art "a new composite explosion-proof vibration source three-phase asynchronous motor", the utility model can perform heat dissipation operation on the three-phase asynchronous motor through the cooperation of the above structures, avoid explosion caused by excessive temperature, and further enhance the explosion-proof performance of the three-phase asynchronous motor;

[0015] When the three-phase asynchronous motor is in use, the protective tube made of rubber material inside the motor shell and the internal coolant can initially play a buffering and shock-absorbing effect, and the several springs inside the protective tube can further provide buffering protection when the protective tube contracts to reduce the amplitude. At the same time, the sealing gasket and the buffer sleeve can provide limit protection for the rotating shaft to further improve the buffering performance of the motor. Finally, the shock-absorbing pad made of rubber material at the lower end of the motor shell and the suction cup can provide buffering protection for the motor from the outside. Compared with the three-phase asynchronous motor structure in the prior art "a new composite explosion-proof vibration source three-phase asynchronous motor", the utility model can provide buffering protection for the motor through the cooperation of the above-mentioned structures to avoid damage to the internal components of the motor, thereby extending the service life of the three-phase asynchronous motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a disassembly diagram of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the shock absorbing component of the utility model;

[0019] Figure 4 This is a disassembled diagram of the shock absorbing component structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the stator and rotor structure of the utility model;

[0021] Figure 6 This is a disassembly diagram of the heat dissipation cabinet structure of the utility model;

[0022] Figure 7 This is a cross-sectional view of the heat dissipation component structure of the utility model.

[0023] In the figure: 100, shock absorbing assembly; 101, motor housing; 102, front cover; 103, sealing gasket; 104, buffer sleeve; 105, shock absorbing pad; 106, suction cup; 107, rotor; 108, stator; 109, rotating shaft; 111, connecting piece; 112, plug hole; 113, plug rod; 121, ear block; 122, screw hole; 123, bolt; 131, fixing groove; 200, heat dissipation assembly; 201, fixing ring; 202, heat dissipation fan; 203, dustproof net; 204, protective tube; 205, liquid storage tank; 206, spring; 211, strip groove; 221, water inlet; 222, sealing plug. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-7 , the utility model provides a high-efficiency explosion-proof three-phase asynchronous motor, including a shock absorbing component 100 and a heat dissipation component 200;

[0026] The shock absorbing assembly 100 includes a motor housing 101, a front cover 102 is detachably connected to the front end of the motor housing 101, a sealing gasket 103 is sleeved on the surface of the front cover 102, a buffer sleeve 104 is installed inside the front cover 102, a plurality of shock absorbing pads 105 are installed at the lower end of the motor housing 101, and a suction cup 106 is fixedly connected to the lower ends of the plurality of shock absorbing pads 105, a rotor 107 is installed inside the motor housing 101, a stator 108 is installed inside the rotor 107, a rotating shaft 109 is installed inside the stator 108, and the rotating shaft 109 passes through the buffer sleeve 104 and is plugged into the interior of the front cover 102;

[0027] The heat dissipation assembly 200 includes a fixed ring 201 installed at the rear end of the motor housing 101, a heat dissipation fan 202 is installed inside the fixed ring 201, a dust net 203 is installed inside the fixed ring 201, a protective cylinder 204 is installed inside the motor housing 101, three liquid storage tanks 205 are opened inside the protective cylinder 204, a plurality of springs 206 are embedded inside the protective cylinder 204, and the rotor 107 is installed inside the protective cylinder 204.

[0028] In a specific embodiment, the damping assembly 100 and the heat dissipation assembly 200 can not only dissipate heat for the motor, avoid explosion caused by excessive temperature of internal components, and improve the explosion-proof performance of the motor, but also have a damping and buffering effect on the three-phase asynchronous motor, avoid damage to the internal components of the motor, and extend the service life of the motor. When the motor is running, the coolant in the several liquid storage tanks 205 can perform heat exchange operation on the internal temperature of the motor, and initially have a heat dissipation effect. At the same time, the heat dissipation fan 202 is started to rotate to transport the outside air into the motor shell 101, which further has a heat dissipation effect and significantly improves the explosion-proof performance of the three-phase asynchronous motor. At the same time, the protective tube 204 cooperates with the internal coolant and several springs 206 on its side surface to initially improve the buffering and shock-absorbing effect of the motor from the inside, and the buffer sleeve 104 can protect the rotating shaft 109. Finally, the several damping pads 105 at the lower end of the motor shell 101 cooperate with the suction cup 106 to improve the buffering and shock-absorbing performance of the three-phase asynchronous motor from the outside, thereby extending the service life of the three-phase asynchronous motor.

[0029] See also Figure 3-Figure 5 The lower end of the motor housing 101 is fixedly connected with a plurality of connecting plates 111 , and the surfaces of the plurality of connecting plates 111 are provided with plug holes 112 . The upper end of the shock absorbing pad 105 is fixedly connected with a plug rod 113 , and the plug rod 113 is plugged into the inside of the plug hole 112 .

[0030] In a specific embodiment, the plugging rod 113 inserted into the plugging hole 112 can facilitate the disassembly, assembly and replacement of the shock-absorbing pad 105, thereby improving the convenience of disassembly and assembly of the shock-absorbing pad 105.

[0031] See also Figure 3-Figure 5 The side surface of the front cover 102 is fixedly connected with three ear blocks 121 , and the surfaces of the three ear blocks 121 and the front end of the motor housing 101 are provided with a plurality of screw holes 122 , and the interiors of the plurality of screw holes 122 are threadedly connected with bolts 123 .

[0032] In a specific embodiment, the bolt 123 is threadedly connected inside the screw hole 122 to enhance the connection strength between the front cover 102 and the motor housing 101 , and the front cover 102 can be disassembled by taking out the bolt 123 .

[0033] See also Figure 3-Figure 5 A fixing groove 131 is formed at the rear end of the motor housing 101 , and the fixing ring 201 is installed inside the fixing groove 131 .

[0034] In a specific embodiment, the fixing groove 131 is used to install and fix the fixing ring 201 to improve the installation stability of the heat dissipation fan 202 .

[0035] See also Figure 6 and Figure 7 The side surface of the protective tube 204 is provided with a plurality of strip grooves 211 at equal intervals, and a plurality of springs 206 are installed inside the strip grooves 211 .

[0036] In a specific embodiment, the spring 206 is installed inside the strip groove 211. When the protective tube 204 is truly contracted, the spring 206 can play a shock-absorbing effect, thereby improving the protection effect on the three-phase asynchronous motor.

[0037] See also Figure 6 and Figure 7 The side surface of the protective tube 204 is provided with a plurality of water inlets 221 , and the plurality of water inlets 221 are connected to the liquid storage tank 205 , and a sealing plug 222 is inserted into the interior of the water inlet 221 .

[0038] In a specific embodiment, the water inlet 221 facilitates the delivery of the coolant into the interior of the plurality of liquid storage tanks 205 , and the presence of the sealing plug 222 can provide a sealing effect on the water inlet 221 .

[0039] See also Figure 6 and Figure 7 The protective tube 204, the buffer sleeve 104, the shock absorbing pad 105 and the suction cup 106 are all made of rubber.

[0040] In a specific embodiment, the rubber protective tube 204, the buffer sleeve 104, the shock-absorbing pad 105 and the suction cup 106 can not only achieve the effect of shock absorption and buffering, but also protect the various components of the motor to avoid damage caused by collision.

[0041] Working principle: When the motor starts, the coolant inside the several liquid storage tanks 205 can absorb the internal temperature of the motor to facilitate heat exchange and heat dissipation. Then, the cooling fan 202 is started to rotate to transport the outside air into the motor housing 101, so as to discharge the heat in the motor housing 101, further achieve the heat dissipation effect, and significantly improve the explosion-proof performance of the three-phase asynchronous motor. Then, the protective tube 204 cooperates with the internal coolant and the several springs 206 on its side surface to preliminarily improve the buffering and shock absorption effect of the motor. Finally, the several shock-absorbing pads 105 at the lower end of the motor housing 101 cooperate with the suction cup 106 to improve the buffering and shock absorption performance of the three-phase asynchronous motor from the outside, avoid vibration damage to the internal structure of the three-phase asynchronous motor, and thus extend the service life of the three-phase asynchronous motor.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency explosion-proof three-phase asynchronous motor, characterized in that: include: A shock absorbing assembly (100), the shock absorbing assembly (100) comprising a motor housing (101), the front end of the motor housing (101) being detachably connected to a front cover (102), the surface of the front cover (102) being sleeved with a sealing gasket (103), a buffer sleeve (104) being installed inside the front cover (102), a plurality of shock absorbing pads (105) being installed at the lower end of the motor housing (101), the lower ends of the plurality of shock absorbing pads (105) being fixedly connected to suction cups (106), a rotor (107) being installed inside the motor housing (101), a stator (108) being installed inside the rotor (107), a rotating shaft (109) being installed inside the stator (108), and the rotating shaft (109) passing through the buffer sleeve (104) and being plugged into the interior of the front cover (102); A heat dissipation component (200), the heat dissipation component (200) comprising a fixing ring (201) mounted on the rear end of a motor housing (101), a heat dissipation fan (202) mounted inside the fixing ring (201), a dust screen (203) mounted inside the fixing ring (201), a protective tube (204) mounted inside the motor housing (101), three liquid storage tanks (205) being provided inside the protective tube (204), a plurality of springs (206) being embedded inside the protective tube (204), and the rotor (107) being mounted inside the protective tube (204).

2. The high-efficiency explosion-proof three-phase asynchronous motor according to claim 1 is characterized in that: A plurality of connecting plates (111) are fixedly connected to the lower end of the motor housing (101), and plug holes (112) are provided on the surfaces of the plurality of connecting plates (111). A plug rod (113) is fixedly connected to the upper end of the shock-absorbing pad (105), and the plug rod (113) is plugged into the inside of the plug hole (112).

3. The high-efficiency explosion-proof three-phase asynchronous motor according to claim 1 is characterized in that: Three ear blocks (121) are fixedly connected to the side surface of the front cover (102), and the surfaces of the three ear blocks (121) and the front end of the motor housing (101) are provided with a plurality of screw holes (122), and bolts (123) are threadedly connected inside the plurality of screw holes (122).

4. The high-efficiency explosion-proof three-phase asynchronous motor according to claim 1 is characterized in that: A fixing groove (131) is provided at the rear end of the motor housing (101), and the fixing ring (201) is installed inside the fixing groove (131).

5. The high-efficiency explosion-proof three-phase asynchronous motor according to claim 1 is characterized in that: A plurality of strip-shaped grooves (211) are equidistantly formed on the side surface of the protective tube (204), and a plurality of the springs (206) are installed inside the strip-shaped grooves (211).

6. The high-efficiency explosion-proof three-phase asynchronous motor according to claim 1 is characterized in that: The side surface of the protective tube (204) is provided with a plurality of water inlets (221), the plurality of water inlets (221) are connected to the liquid storage tank (205), and a sealing plug (222) is inserted into the interior of the water inlet (221).

7. The high-efficiency explosion-proof three-phase asynchronous motor according to claim 1 is characterized in that: The protective tube (204), the buffer sleeve (104), the shock-absorbing pad (105) and the suction cup (106) are all made of rubber.

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