CN212784984U

CN212784984U - Three-phase asynchronous explosion-proof motor

Info

Publication number: CN212784984U
Application number: CN202021669434.8U
Authority: CN
Inventors: 邢冬梅
Original assignee: Jinda Motor Co ltd Wendeng Cit
Current assignee: Jinda Motor Co ltd Wendeng Cit
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-03-23
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a three-phase asynchronous explosion-proof motor, which belongs to the technical field of three-phase asynchronous motors and has the technical proposal that the three-phase asynchronous explosion-proof motor comprises an explosion-proof shell and a motor body, wherein the left side and the right side of the motor body are both provided with damping plates, the left side and the right side of the motor body are both fixedly connected with a plurality of connecting rods which are uniformly distributed, one sides of the two damping plates which are opposite to each other are both provided with limit nuts which are matched with the connecting rods, the outer side walls of the connecting rods are both provided with springs, the middle part of the motor body is provided with a rotating shaft, the left side of the motor body is provided with a second fan which is matched with the rotating shaft, the upper side and the lower side inside the explosion-proof shell are both fixedly connected with fasteners, the motor body has the damping effect, the vibration force of the motor body is further reduced, the flammable mixture, resulting in the explosion of the motor.

Description

Three-phase asynchronous explosion-proof motor

Technical Field

The utility model relates to a three-phase asynchronous machine technical field, in particular to three-phase asynchronous explosion-proof machine.

Background

The explosion-proof motor is a motor which can be used in flammable and explosive places, does not generate electric sparks during operation, is mainly used in coal mines, petroleum and natural gas, petrochemical industry and chemical industry, is widely applied to textile, urban gas, traffic, grain and oil processing, paper making, medicine and other departments, and is used as main power equipment and is generally used for driving pumps, fans, compressors, other transmission machinery and the like.

However, when the existing motor works, vibration is easy to generate, the sealing gap of the motor shell is increased due to long-term vibration, so that a combustible mixture easily enters the motor, and the heat generated by the motor work is easy to explode when being contacted with combustible gas.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides an asynchronous explosion-proof machine of three-phase aims at solving when current motor carries out the operation, produces the vibration easily, and long-term vibration can lead to the sealed gap increase of motor casing, makes combustible mixture enter into the motor easily inside, the problem of the easy explosion phenomenon that takes place when the heat that the motor operation produced and combustible gas contact.

In order to achieve the above object, the utility model provides a following technical scheme: a three-phase asynchronous explosion-proof motor comprises an explosion-proof shell and a motor body, wherein the motor body is positioned inside the explosion-proof shell, the explosion-proof shell sequentially comprises a left connecting shell and a right connecting shell from left to right, the left connecting shell and the right connecting shell are fixedly connected through a flange, damping plates are arranged on the left side and the right side of the motor body, a plurality of uniformly distributed connecting rods are fixedly connected on the left side and the right side of the motor body, the outer side walls of the connecting rods penetrate through the damping plates and extend to the outside of the damping plates, limiting nuts matched with the connecting rods are arranged on the opposite sides of the two damping plates, springs are arranged on the outer side walls of the connecting rods, a rotating shaft is arranged in the middle of the motor body, the left end and the right end of the rotating shaft penetrate through the motor body and extend to the outside of the motor body, and a second fan matched with the rotating shaft is arranged on, the explosion-proof shell is characterized in that the upper side and the lower side of the interior of the explosion-proof shell are fixedly connected with clamping pieces, and the inner side walls of the clamping pieces are tightly attached to the outer side wall of the motor body.

In order to accelerate the radiating effect, prevent that a large amount of heats that the inside of motor produced from gathering and leading to the work of the inside accessories of motor unusual, conduct the utility model discloses a three-phase asynchronous explosion-proof machine is preferred, two the ventilation hole of seting up a plurality of evenly distributed is run through in the left side of fastener.

In order to prevent that explosion-proof shell and the inside heat of motor body are too high, make the inside circuit spark, lead to the motor to explode, conduct the utility model discloses a three-phase asynchronous explosion-proof machine is preferred, explosion-proof shell and motor body's inside wall and lateral wall all coat and have one deck ammonium polyphosphate.

In order to avoid motor body internal seal and lead to the motor explosion, as the utility model discloses an asynchronous explosion-proof machine of three-phase is preferred, motor body includes rear end housing, middle part connecting shell and front end housing from a left side to the right side in proper order, through flange fixed connection between rear end housing, middle part connecting shell and the front end housing are adjacent each other, the inside of rear end housing is provided with the first fan with pivot assorted, the rear end housing all runs through with the relative one side of middle part connecting shell and has seted up the through-hole.

In order to facilitate the heat conduction with the pivot top to go away, conduct the utility model discloses a three-phase asynchronous explosion-proof machine is preferred, the right side fixedly connected with and the pivot assorted heat dissipation bearing of front end housing, heat dissipation bearing's inside fixedly connected with radiating ring.

In order to make motor body's stability can improve, conduct the utility model discloses a three-phase asynchronous explosion-proof machine is preferred, two the lateral wall of shock attenuation board is connected the inside wall fixed connection of shell and right side connection shell with a left side respectively.

For the stability ability of the explosion proof machine of enhancement, conduct the utility model discloses a three-phase asynchronous explosion proof machine is preferred, the inside wall fixedly connected with stator of middle part connection shell, the middle part of stator is rotated and is connected with the rotor, the pivot is located the middle part of rotor, the lower terminal surface fixedly connected with frame of explosion proof shell.

The utility model has the advantages that:

1. the three-phase asynchronous explosion-proof motor has the advantages that the motor body is arranged inside the explosion-proof shell, the motor body is further prevented from contacting with external combustible objects, the probability of explosion of the motor body is reduced, the inner side wall and the outer side wall of the explosion-proof shell and the motor body are coated with the ammonium polyphosphate, the ammonium polyphosphate has fireproof and fire extinguishing performance, the phenomenon that the heat inside the explosion-proof shell and the motor body is too high is prevented, a circuit inside the explosion-proof shell is caused, when the motor body works, vibration force can be generated, the motor body vibrates for a long time to influence the sealing performance of the motor body and the explosion-proof shell, the left side and the right side of the motor body are provided with the damping plates, the two sides of the motor body are provided with the connecting rods and the springs, the motor body has a damping effect, the vibration force of the motor body is further reduced, and the combustible mixture is effectively prevented from entering the motor, prevent simultaneously that combustible gas or steam from entering into motor body and explosion-proof shell easily inside, lead to the phenomenon that the motor explodes, set up two fasteners and second fan in the inside of explosion-proof shell, the fastener is convenient for fix the motor body, the ventilation hole has been seted up in the left side of joint through, when the second fan is rotatory, the wind energy of production circulates in explosion-proof shell for the radiating effect, avoid motor body internal seal and lead to the explosion.

2. This kind of asynchronous explosion-proof machine of three-phase is provided with through the inside at the rear end cap with pivot assorted first fan, and when the pivot rotated, the synchronous first fan that drives rotated, and further convenience dispels the heat to motor body, avoids motor body inside to seal and leads to the explosion.

3. This kind of asynchronous explosion-proof machine of three-phase, through the right side fixedly connected with and the pivot assorted heat dissipation bearing at the front end housing, heat dissipation bearing is convenient for restrict the pivot, makes the moment of torsion of pivot reduce, improves the life of pivot, and heat dissipation bearing's inside fixedly connected with radiating ring, and the radiating ring is hugged closely with the lateral wall of pivot, is convenient for spread away the heat of pivot top.

Drawings

Fig. 1 is an overall sectional structural view of a three-phase asynchronous explosion-proof motor according to the present invention;

fig. 2 is a sectional structural view of the motor body of the present invention;

FIG. 3 is a left side view of the fastener of the present invention;

fig. 4 is a left side view structure diagram of the heat radiation bearing of the present invention.

The labels in the figure are: 1. an explosion-proof shell; 101. a left connecting shell; 102. a right connecting shell; 103. a machine base; 104. a fastener; 105. a vent hole; 106. a damper plate; 107. a connecting rod; 108. a spring; 109. a limit nut; 2. a motor body; 201. a rear end cap; 202. the middle part is connected with the shell; 203. a front end cover; 204. a stator; 205. a rotor; 206. a rotating shaft; 207. a first fan; 208. a through hole; 3. a heat dissipating bearing; 301. a heat dissipation ring; 4. and a second fan.

Detailed Description

As shown in fig. 1-4, a three-phase asynchronous explosion-proof motor comprises an explosion-proof housing 1 and a motor body 2, the motor body 2 is located inside the explosion-proof housing 1, the explosion-proof housing 1 sequentially comprises a left connecting housing 101 and a right connecting housing 102 from left to right, the left connecting housing 101 and the right connecting housing 102 are fixedly connected through a flange, shock absorbing plates 106 are respectively arranged on the left and right sides of the motor body 2, a plurality of uniformly distributed connecting rods 107 are respectively fixedly connected on the left and right sides of the motor body 2, outer side walls of the connecting rods 107 respectively penetrate through the shock absorbing plates 106 and extend to the outside of the shock absorbing plates 106, limit nuts 109 matched with the connecting rods 107 are respectively arranged on the opposite sides of the two shock absorbing plates 106, springs 108 are respectively arranged on the outer side walls of the connecting rods 107, a rotating shaft 206 is arranged in the middle of the motor body 2, and both left and right ends of the rotating shaft 206 penetrate through, the left side of motor body 2 is provided with and rotates shaft 206 assorted second fan 4, the equal fixedly connected with fastener 104 in the upper and lower both sides of explosion-proof shell 1 inside, and the inside wall of two fasteners 104 is hugged closely with motor body 2's lateral wall.

In this embodiment: the motor body 2 is arranged inside the explosion-proof shell 1, so that the motor body 2 is prevented from contacting with external combustible objects, the probability of explosion of the motor body 2 is reduced, a layer of ammonium polyphosphate is coated on the inner side wall and the outer side wall of the explosion-proof shell 1 and the motor body 2, the ammonium polyphosphate has fireproof and fire extinguishing performance, the phenomenon that the heat inside the explosion-proof shell 1 and the motor body 2 is too high to cause sparks of an internal circuit and cause explosion of the motor is avoided, when the motor body 2 works, vibration force can be generated, the long-term vibration of the motor body 2 influences the sealing performance of the motor body 2 and the explosion-proof shell 1, the damping plates 106 are arranged on the left side and the right side of the motor body 2, the connecting rods 107 and the springs 108 are arranged on the two sides of the motor body 2, the motor body 2 has a damping effect, the vibration force of the motor body 2 is further reduced, and a combustible mixture is effectively prevented from entering the interior of the, prevent simultaneously that combustible gas or steam from entering into motor body 2 and explosion-proof shell 1 inside easily, lead to the motor to take place the phenomenon of explosion, set up two fastener 104 and second fan 4 in explosion-proof shell 1's inside, fastener 104 is convenient for fixed motor body 2, the ventilation hole 105 has been seted up in the left side of joint is run through, when second fan 4 is rotatory, the wind energy of production circulates in explosion-proof shell 1, accelerate the radiating effect, avoid motor body 2 internal seal and lead to the explosion.

As a technical optimization scheme of the present invention, the left side of the two fasteners 104 runs through the ventilation holes 105 which are provided with a plurality of uniform distributions.

In this embodiment: through running through the ventilation hole 105 of having seted up a plurality of evenly distributed in the left side at two fasteners 104, when second fan 4 rotated, the wind energy of production circulated flow in explosion-proof shell 1 for the radiating effect prevents that a large amount of heats that the inside of motor produced from gathering and leading to the work of the inside accessories of motor unusual.

As a technical optimization scheme of the utility model, the explosion-proof shell 1 and the inside wall and the lateral wall of motor body 2 all coat and have the one deck ammonium polyphosphate.

In this embodiment: the inner side wall and the outer side wall of the explosion-proof shell 1 and the motor body 2 are coated with the ammonium polyphosphate, the ammonium polyphosphate has fireproof and fire extinguishing performance, and the phenomenon that the heat inside the explosion-proof shell 1 and the motor body 2 is too high, so that a circuit inside the explosion-proof shell sparks to cause the motor to explode is prevented.

As a technical optimization scheme of the utility model, motor body 2 includes rear end housing 201, middle part connecting shell 202 and front end housing 203 from a left side to the right side in proper order, and through flange fixed connection between rear end housing 201, middle part connecting shell 202 and the front end housing 203 are adjacent each other, and the inside of rear end housing 201 is provided with and rotates 206 assorted first fan 207, and rear end housing 201 all runs through with the relative one side of middle part connecting shell 202 and has seted up through-hole 208.

In this embodiment: through the inside of rear end cap 201 be provided with first fan 207 of pivot 206 assorted, when pivot 206 rotated, first fan 207 of synchronous drive rotated, further conveniently dispels the heat to motor body 2, avoided motor body 2 inside to seal and lead to the explosion.

As a technical optimization scheme of the utility model, the right side fixedly connected with of front end housing 203 and pivot 206 assorted heat dissipation bearing 3, heat dissipation bearing 3's inside fixedly connected with heat dissipation ring 301.

In this embodiment: through the right side fixedly connected with and pivot 206 assorted heat dissipation bearing 3 at front end housing 203, heat dissipation bearing 3 is convenient for restrict pivot 206, makes the moment of torsion of pivot 206 reduce, improves the life of pivot 206, and heat dissipation bearing 3's inside fixedly connected with heat dissipation ring 301, and heat dissipation ring 301 is hugged closely with the lateral wall of pivot 206, is convenient for spread away the heat of pivot 206 top.

As a technical optimization scheme of the utility model, the lateral wall of two shock attenuation boards 106 is connected the inside wall fixed connection of shell 101 and right side connection shell 102 with the left side respectively.

In this embodiment: with the lateral wall of two shock attenuation boards 106 respectively with the left side be connected the shell 101 with the right side be connected the inside wall fixed connection of shell 102, when motor body 2 receives the vibration, spring 108 and connecting rod 107 can receive the restriction of shock attenuation board 106, and spring 108 can consume motor body 2's vibrational force, make motor body 2's stability can improve.

As a technical optimization scheme of the utility model, the inside wall fixedly connected with stator 204 of shell 202 is connected at the middle part, and the middle part of stator 204 is rotated and is connected with rotor 205, and pivot 206 is located rotor 205's middle part, the lower terminal surface fixedly connected with frame 103 of explosion-proof shell 1.

In this embodiment: the base 103 is fixedly connected to the lower end face of the explosion-proof shell 1, the base 103 enhances the stability of the explosion-proof motor, and the vibration frequency of the explosion-proof motor is reduced when the explosion-proof motor works.

The working principle is as follows: firstly, the motor body 2 is arranged inside the explosion-proof shell 1, and further the motor body 2 is prevented from contacting with external combustible objects, the probability of explosion of the motor body 2 is reduced, a layer of ammonium polyphosphate is coated on the inner side wall and the outer side wall of the explosion-proof shell 1 and the motor body 2, the ammonium polyphosphate has fireproof and fire extinguishing performance, the heat inside the explosion-proof shell 1 and the motor body 2 is prevented from being too high, so that a circuit inside the explosion of the motor is caused, when the motor body 2 works, vibration force can be generated, the long-term vibration of the motor body 2 influences the sealing performance of the motor body 2 and the explosion-proof shell 1, the damping plates 106 are arranged on the left side and the right side of the motor body 2, the connecting rods 107 and the springs 108 are arranged on the two sides of the motor body 2, so that the motor body 2 has a damping effect, the vibration force of the motor body 2 is further reduced, and the flammable mixture is effectively prevented from entering the interior of, prevent simultaneously that combustible gas or steam from entering into motor body 2 and explosion-proof shell 1 inside easily, lead to the motor to take place the phenomenon of explosion, set up two fastener 104 and second fan 4 in explosion-proof shell 1's inside, fastener 104 is convenient for fixed motor body 2, the ventilation hole 105 has been seted up in the left side of joint is run through, when second fan 4 is rotatory, the wind energy of production circulates in explosion-proof shell 1, accelerate the radiating effect, avoid motor body 2 internal seal and lead to the explosion.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

However, the above embodiments are only examples of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims.

Claims

1. The utility model provides an asynchronous explosion-proof machine of three-phase, includes explosion-proof shell (1) and motor body (2), motor body (2) are located the inside of explosion-proof shell (1), its characterized in that: the explosion-proof shell (1) sequentially comprises a left connecting shell (101) and a right connecting shell (102) from left to right, the left connecting shell (101) and the right connecting shell (102) are fixedly connected through a flange, the left side and the right side of the motor body (2) are respectively provided with a damping plate (106), the left side and the right side of the motor body (2) are respectively fixedly connected with a plurality of uniformly distributed connecting rods (107), the outer side walls of the connecting rods (107) penetrate through the damping plates (106) and extend to the outside of the damping plates (106), one sides of the two damping plates (106) which are opposite to each other are respectively provided with a limit nut (109) matched with the connecting rods (107), the outer side walls of the connecting rods (107) are respectively provided with a spring (108), the middle part of the motor body (2) is provided with a rotating shaft (206), the left end and the right end of the rotating shaft (206) penetrate through the motor body (2) and extend to the outside of the motor body (2), the left side of motor body (2) is provided with and rotates shaft (206) assorted second fan (4), equal fixedly connected with fastener (104) in the upper and lower both sides of explosion-proof shell (1) inside, two the inside wall of fastener (104) is hugged closely with the lateral wall of motor body (2).

2. The three-phase asynchronous explosion-proof motor according to claim 1, characterized in that: the left sides of the two clamping pieces (104) are provided with a plurality of uniformly distributed vent holes (105) in a penetrating way.

3. The three-phase asynchronous explosion-proof motor according to claim 1, characterized in that: and the inner side wall and the outer side wall of the explosion-proof shell (1) and the motor body (2) are coated with a layer of ammonium polyphosphate.

4. The three-phase asynchronous explosion-proof motor according to claim 1, characterized in that: the motor body (2) sequentially comprises a rear end cover (201), a middle connecting shell (202) and a front end cover (203) from left to right, the rear end cover (201), the middle connecting shell (202) and the front end cover (203) are adjacent to each other and fixedly connected through flanges, a first fan (207) matched with a rotating shaft (206) is arranged inside the rear end cover (201), and one side, opposite to the middle connecting shell (202), of the rear end cover (201) is provided with a through hole (208) in a penetrating mode.

5. The three-phase asynchronous explosion-proof motor according to claim 4, characterized in that: the right side fixedly connected with of front end housing (203) and pivot (206) assorted heat dissipation bearing (3), the inside fixedly connected with heat dissipation ring (301) of heat dissipation bearing (3).

6. The three-phase asynchronous explosion-proof motor according to claim 1, characterized in that: the outer side walls of the two shock absorption plates (106) are fixedly connected with the inner side walls of the left connecting shell (101) and the right connecting shell (102) respectively.

7. The three-phase asynchronous explosion-proof motor according to claim 4, characterized in that: the inside wall fixedly connected with stator (204) of middle part connection shell (202), the middle part of stator (204) is rotated and is connected with rotor (205), pivot (206) are located the middle part of rotor (205), the lower terminal surface fixedly connected with frame (103) of explosion-proof shell (1).