CN115189503B - Explosion-proof type three-phase asynchronous motor - Google Patents
Explosion-proof type three-phase asynchronous motor Download PDFInfo
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- CN115189503B CN115189503B CN202211086593.9A CN202211086593A CN115189503B CN 115189503 B CN115189503 B CN 115189503B CN 202211086593 A CN202211086593 A CN 202211086593A CN 115189503 B CN115189503 B CN 115189503B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/12—Asynchronous induction motors for multi-phase current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
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Abstract
The invention discloses an explosion-proof three-phase asynchronous motor, which belongs to the technical field of three-phase asynchronous motors and comprises a three-phase asynchronous motor main body, wherein a constant-voltage component is fixedly arranged at the bottom of the three-phase asynchronous motor main body, and the constant-voltage component comprises a damping device, a cache tank and a pressure storage tank. According to the invention, the buffer tank can continuously provide air without inflammable and explosive substances for the three-phase asynchronous motor main body during the operation of the three-phase asynchronous motor main body, the heat in the machine body can be taken away when the air in the three-phase asynchronous motor main body is discharged, so that a heat dissipation function can be provided for the three-phase asynchronous motor main body, before the three-phase asynchronous motor main body is started, a worker opens a valve on the second air supply pipe, and the air without inflammable and explosive substances in the pressure accumulation tank can quickly flow into the three-phase asynchronous motor main body, so that the air in the three-phase asynchronous motor main body can be discharged, and the three-phase asynchronous motor main body is effectively ensured to have good stability in the starting and whole operation stages.
Description
Technical Field
The invention belongs to the technical field of three-phase asynchronous motors, and particularly relates to an explosion-proof three-phase asynchronous motor.
Background
The three-phase asynchronous motor is one kind of induction motor, and is one kind of motor powered by 380V three-phase AC current, and is called three-phase asynchronous motor because the rotating magnetic fields of the rotor and the stator of the three-phase asynchronous motor rotate in the same direction and at different rotating speeds and have slip ratio. The rotating speed of the rotor of the three-phase asynchronous motor is lower than that of a rotating magnetic field, and the rotor winding generates electromotive force and current due to relative motion with the magnetic field and generates electromagnetic torque through interaction with the magnetic field, so that energy conversion is realized.
The invention discloses a part of invention patents in the technical field of three-phase asynchronous motors in the prior art, wherein Chinese patent CN111404344B discloses an explosion-proof three-phase asynchronous motor suitable for mine working conditions, a sealing gasket is arranged on the contact surface of an end cover and a shell to form static sealing, and a rotating shaft seal is arranged at the position where a main shaft penetrates through the end cover, so that the space in the motor is isolated from external explosive gas, and the explosion condition cannot be achieved; positive pressure gas is filled into the motor, comes from the ground surface and is non-explosive gas, and further prevents the diffusion and leakage of the environmental gas at the use position of the motor into the motor; the positive pressure gas is distributed in the motor through the hollow shaft, so that the internal pressure is high, the external pressure is slightly low but higher than the ambient pressure, the explosion-proof isolation performance is ensured, too thick power lines caused by excessive positive pressure gas discharged from the gas distribution holes cannot be caused, the technical scheme has some defects in the implementation process, a large amount of inflammable and explosive air exists in a mine, the air in the machine body needs to be exhausted before the three-phase asynchronous motor is started in order to prevent the inflammable and explosive air from entering the three-phase asynchronous motor, the pressure intensity in the machine body needs to be ensured in the operation process of the three-phase asynchronous motor, the air exchange equipment is usually required to be assembled in order to realize the situation, the control circuit of the air exchange equipment is complex, the control elements are numerous, and once the circuit has problems, the accident of unexpected shutdown of the three-phase asynchronous motor is caused.
Based on the above, the invention designs an explosion-proof three-phase asynchronous motor to solve the above problems.
Disclosure of Invention
The invention aims to: the explosion-proof type three-phase asynchronous motor aims to solve the problems that in the prior art, due to the fact that a large amount of inflammable and explosive air exists in a mine, in order to prevent the inflammable and explosive air from entering the interior of the three-phase asynchronous motor, the air in the interior of a machine body needs to be exhausted before the three-phase asynchronous motor is started, in addition, the pressure intensity in the interior of the machine body needs to be ensured in the running process of the three-phase asynchronous motor, in order to achieve the problems, air exchange equipment needs to be assembled usually, the control circuit of the air exchange equipment is complex, the number of control elements is large, and once the circuit is in a problem, the three-phase asynchronous motor is caused to be shut down accidentally.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an explosion-proof type three-phase asynchronous motor, includes the three-phase asynchronous motor main part, the bottom fixed mounting of three-phase asynchronous motor main part has the constant voltage subassembly, the constant voltage subassembly includes damping device, buffer memory jar and pressure accumulation jar, damping device plays the cushioning effect to the three-phase asynchronous motor main part to the flexible action when damping device is to three-phase asynchronous motor main part shock attenuation still breathes in and exhausts the action, the gas that damping device discharged is stored respectively and is used for the inside air pressure intensity of invariable three-phase asynchronous motor main part in pressure accumulation jar and the buffer memory jar, arc shock attenuation adhesive tape has still been added between constant voltage subassembly and the three-phase asynchronous motor main part to built-in shock attenuation board of constant voltage subassembly and shock attenuation strip.
As a further description of the above technical solution:
the constant voltage assembly further comprises a tray, the bottom of the body of the three-phase asynchronous motor main body is fixedly installed on the inner side of the tray, the tray is embedded in the inner side of the base, the top of the base is fixedly connected with a plurality of linearly arranged damping devices, the tops of the damping devices are fixedly connected with the bottom of the tray, the surfaces of the damping devices are communicated with first branch pipes, the other ends of the first branch pipes are communicated through an air suction pipe, the surfaces of the damping devices are communicated with second branch pipes, and the other ends of the second branch pipes are communicated through exhaust pipes;
a buffer tank and a pressure accumulation tank are respectively embedded in the inner side of the bottom of the base, a first bridge type connecting pipe is communicated with the end face of one side of the pressure accumulation tank, and the other end of the first bridge type connecting pipe is communicated with one side close to the buffer tank;
the side end face of the buffer tank is communicated with a first air supplementing pipe, the other end of the first air supplementing pipe is communicated with the bottom of a main body of the three-phase asynchronous motor, the side end face of the pressure accumulation tank is communicated with a second air supplementing pipe, and the other end of the second air supplementing pipe is communicated with the bottom of the main body of the three-phase asynchronous motor.
As a further description of the above technical solution:
the equal fixedly connected with of both sides at base top a plurality of damping device that are linear arrangement, and the blast pipe that is located both sides passes through the switch-on of third bridge type connecting pipe, the other end switch-on of third bridge type connecting pipe is at the opposite side terminal surface of pressure storage tank, and is located the aspiration channel of both sides and passes through the switch-on of second bridge type connecting pipe, the other end switch-on of third bridge type connecting pipe is on the ground surface.
As a further description of the above technical solution:
and the other end of the third bridge type connecting pipe is communicated with an air filter, and the air filter is used for filtering inflammable and explosive gases in the air.
As a further description of the above technical solution:
the surface of the first branch pipe, the surface of the second branch pipe, the surface of the first bridge type connecting pipe and the surface of the first air supplementing pipe are all provided with one-way valves, and the surface of the second air supplementing pipe is provided with a control valve.
As a further description of the above technical solution:
the damping device comprises a damping cylinder, a damping shaft is sleeved in the damping cylinder, a damping spring is fixedly connected to the end face of the bottom of the damping shaft, and the other end of the damping spring is fixedly connected to the end face of the inner side of the damping cylinder;
the equal joint of one end that shock attenuation section of thick bamboo and damping shaft kept away from each other has spherical hoop cover, and all rotates in two spherical hoop covers and be connected with universal spherical axle, and the one end that two universal spherical axles kept away from each other is fixed connection in the opposite face of tray and base respectively, and the one end that two universal spherical axles are close to each other through two supporting spring respectively with the inside wall fixed connection of two spherical hoop covers.
As a further description of the above technical solution:
the end part of the first branch pipe is communicated with the surface of the shock absorption cylinder, and the end part of the second branch pipe is communicated with the surface of the shock absorption cylinder.
As a further description of the above technical solution:
the arc-shaped damping rubber strip is fixedly installed on the inner side wall of the tray, and the shape of the inner side wall of the tray is matched with the shape of the bottom of the main body of the three-phase asynchronous motor.
As a further description of the above technical solution:
the equal fixed connection of shock attenuation board and shock attenuation strip is at the inside wall of base, the quantity of shock attenuation strip and shock attenuation board is a plurality of, and a plurality of shock attenuation boards and a plurality of shock attenuation strip intercrossing arrange.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, when the damping shaft extends in the damping cylinder in the process of corresponding telescopic action in the damping cylinder, the check valve on the first branch pipe is opened, the damping cylinder can extract the gas without flammable and combustible substances sucked by the first branch pipe, the air suction pipe and the second bridge type connecting pipe, when the damping shaft retracts in the damping cylinder, the check valve on the second branch pipe is opened, the check valve on the first branch pipe is closed, the gas without flammable and combustible substances sucked in the damping cylinder can enter the pressure accumulator through the second branch pipe, the exhaust pipe and the third bridge type connecting pipe, when the gas without flammable and combustible substances stored in the pressure accumulator can meet certain pressure intensity, the first bridge type connecting pipe is opened, the gas without flammable and combustible substances in the pressure accumulator can enter the cache tank through the first bridge type connecting pipe, the gas in the cache tank enters the three-phase asynchronous motor main body through the first air supplement pipe, the internal pressure of the three-phase asynchronous motor can be maintained, and the three-phase asynchronous motor can always provide heat for the three-phase asynchronous motor when the three-phase asynchronous motor body does not contain flammable and combustible substances, the three-phase asynchronous motor can always provide heat for the three-phase asynchronous motor in the asynchronous motor, and the three-phase asynchronous motor, the asynchronous motor, and the asynchronous motor can always provide heat for the three-phase asynchronous motor, the valve on the second air supplement pipe is opened by the staff before the three-phase asynchronous motor main body is started, and the air which does not contain flammable and explosive substances in the pressure accumulation tank can flow into the three-phase asynchronous motor main body quickly, so that the air in the three-phase asynchronous motor main body can be discharged, and the three-phase asynchronous motor main body is effectively ensured to have good stability in the starting and whole operation stages.
2. According to the invention, the three-phase asynchronous motor main body can generate vibration in the operation process, the vibration is distributed on the plurality of damping devices through the tray, the damping devices can correspondingly stretch and retract in the damping cylinder under the influence of the vibration, the damping springs can be pulled or extruded in the process of stretching and retracting movement of the damping shaft in the damping cylinder, the damping springs can deform under the action of tensile force or extrusion force, the elastic force generated when the damping springs deform is utilized, so that a certain damping effect can be exerted on the bottom of the three-phase asynchronous motor main body, and because the damping shaft can twist in the corresponding spherical hoop sleeve through the upper universal spherical shaft in the process of corresponding stretching and retracting movement in the damping cylinder, the deformation is generated by pulling or extruding the supporting springs in the spherical hoop sleeve, the top of the base can twist in the corresponding spherical hoop sleeve through the lower universal spherical shaft, the deformation is generated by pulling or extruding the supporting springs in the spherical hoop sleeve, so that the whole damping device can change the self-supporting action of the three-phase asynchronous motor main body along with the action, and the three-phase asynchronous motor can stably operate in the three-phase asynchronous motor main body under the effect of more stable damping effect.
Drawings
Fig. 1 is a schematic overall structure diagram of an explosion-proof three-phase asynchronous motor according to the present invention;
fig. 2 is a schematic structural diagram of a constant voltage component in an explosion-proof three-phase asynchronous motor according to the present invention;
fig. 3 is an enlarged schematic structural diagram of a point a in fig. 2 of an explosion-proof three-phase asynchronous motor according to the present invention;
fig. 4 is an enlarged schematic structural diagram of an explosion-proof three-phase asynchronous motor shown in fig. 3 at B;
fig. 5 is a schematic diagram of a split structure of a constant voltage component in an explosion-proof three-phase asynchronous motor according to the present invention;
fig. 6 is an enlarged schematic structural diagram of a part C in fig. 5 of the explosion-proof three-phase asynchronous motor according to the present invention;
fig. 7 is a schematic sectional structural view of a damping device in an explosion-proof three-phase asynchronous motor according to the present invention;
fig. 8 is an enlarged schematic structural diagram of an explosion-proof three-phase asynchronous motor shown in fig. 7 at D;
fig. 9 is a schematic structural diagram of a pressure accumulation tank and a buffer tank in an explosion-proof three-phase asynchronous motor according to the present invention;
fig. 10 is an enlarged schematic structural diagram of an explosion-proof three-phase asynchronous motor shown in fig. 9 at E;
fig. 11 is a schematic sectional structural view of a damper cylinder in an explosion-proof three-phase asynchronous motor according to the present invention.
Illustration of the drawings:
1. a three-phase asynchronous motor main body; 2. a constant voltage component; 201. a tray; 202. a base; 203. a damping device; 2031. a damper cylinder; 2032. a shock-absorbing shaft; 2033. a damping spring; 2034. a spherical hoop sleeve; 2035. a universal spherical shaft; 204. a buffer tank; 205. a pressure accumulation tank; 206. a first branch pipe; 207. an air suction pipe; 208. a second branch pipe; 209. an exhaust pipe; 210. a first bridge type connecting pipe; 211. a first air supplement pipe; 212. a second air supplement pipe; 3. an arc-shaped shock absorption rubber strip; 4. a damper plate; 5. a shock absorbing bar; 6. a second bridge type connecting pipe; 7. a third bridge type connecting pipe; 8. the spring is supported.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-11, the present invention provides a technical solution: the utility model provides an explosion-proof type three-phase asynchronous motor, including three-phase asynchronous motor main part 1, the bottom fixed mounting of three-phase asynchronous motor main part 1 has constant voltage subassembly 2, constant voltage subassembly 2 includes damping device 203, buffer tank 204 and pressure accumulation jar 205, damping device 203 plays the cushioning effect to three-phase asynchronous motor main part 1, and the flexible action when damping device 203 is to the shock attenuation of three-phase asynchronous motor main part 1 still breathes in and exhausts the action, the gas that damping device 203 discharged is stored respectively and is used for the inside air pressure intensity of invariable three-phase asynchronous motor main part 1 in pressure accumulation jar 205 and the buffer tank 204, still add arc damping rubber strip 3 between constant voltage subassembly 2 and the three-phase asynchronous motor main part 1, and the built-in damper plate 4 of constant voltage subassembly 2 and shock strip 5.
Specifically, the constant voltage assembly 2 further comprises a tray 201, the bottom of the body of the three-phase asynchronous motor main body 1 is fixedly mounted on the inner side of the tray 201, the tray 201 is embedded on the inner side of the base 202, the top of the base 202 is fixedly connected with a plurality of linearly arranged damping devices 203, the tops of the damping devices 203 are fixedly connected with the bottom of the tray 201, the surfaces of the damping devices 203 are all communicated with first branch pipes 206, the other ends of the first branch pipes 206 are communicated with an air suction pipe 207, the surfaces of the damping devices 203 are all communicated with second branch pipes 208, and the other ends of the second branch pipes 208 are communicated with an air discharge pipe 209;
a cache tank 204 and a pressure accumulation tank 205 are respectively embedded in the inner side of the bottom of the base 202, a first bridge type connecting pipe 210 is communicated with the end face of one side of the pressure accumulation tank 205, and the other end of the first bridge type connecting pipe 210 is communicated with the side close to the cache tank 204;
a first air supply pipe 211 is connected to the side end surface of the buffer tank 204, the other end of the first air supply pipe 211 is connected to the bottom of the main body of the three-phase asynchronous motor 1, a second air supply pipe 212 is connected to the side end surface of the pressure accumulation tank 205, and the other end of the second air supply pipe 212 is connected to the bottom of the main body of the three-phase asynchronous motor 1.
The implementation mode is specifically as follows: during the process that the damping shaft 2032 extends and contracts in the damping cylinder 2031, when the damping shaft 2032 extends and contracts in the damping cylinder 2031, the check valve on the first branch pipe 206 is opened, the damping cylinder 2031 will draw the gas without inflammable and explosive substances sucked by the first branch pipe 206, the suction pipe 207 and the second bridge type connecting pipe 6, when the damping shaft 2032 retracts in the damping cylinder 2031, the check valve on the second branch pipe 208 is opened, the check valve on the first branch pipe 206 is closed, the gas without inflammable and explosive substances sucked in the damping cylinder 2031 will be entered into the pressure accumulation tank 205 through the second branch pipe 208, the exhaust pipe 209 and the third bridge type connecting pipe 7, when the gas without inflammable and explosive substances stored in the pressure accumulation tank 205 can satisfy a certain pressure intensity, the first bridge type connecting pipe 210 will be opened, the excessive gas without flammable and combustible substances in the pressure accumulation tank 205 enters the cache tank 204 through the first bridge type connecting pipe 210, the gas in the cache tank 204 enters the inside of the three-phase asynchronous motor main body 1 through the first air supply pipe 211, the gas without flammable and combustible substances in the cache tank 204 can supplement the pressure intensity inside the three-phase asynchronous motor main body 1 after entering the inside of the three-phase asynchronous motor main body 1, so that the three-phase asynchronous motor main body 1 can always keep a certain pressure inside the machine body in the whole operation process, a worker opens the valve on the second air supply pipe 212, the air without flammable and combustible substances in the pressure accumulation tank 205 can quickly flow into the inside of the three-phase asynchronous motor main body 1, and the air inside the three-phase asynchronous motor main body 1 can be discharged.
Specifically, a plurality of linearly arranged shock-absorbing devices 203 are fixedly connected to both sides of the top of the base 202, the exhaust pipes 209 located at both sides are connected through a third bridge type connecting pipe 7, the other end of the third bridge type connecting pipe 7 is connected to the other end face of the pressure accumulation tank 205, the air suction pipes 207 located at both sides are connected through a second bridge type connecting pipe 6, the other end of the third bridge type connecting pipe 7 is connected to the ground surface, the shock-absorbing devices 203 comprise shock-absorbing cylinders 2031, shock-absorbing shafts 2032 are sleeved in the shock-absorbing cylinders 2031, shock-absorbing springs 2033 are fixedly connected to the bottom end face of the shock-absorbing shafts 2032, and the other ends of the shock-absorbing springs 2033 are fixedly connected to the end face of the inner side of the shock-absorbing cylinders 2031;
the equal joint of one end that shock attenuation cylinder 2031 and shock attenuation axle 2032 kept away from each other has spherical hoop cover 2034, and all rotates in two spherical hoop covers 2034 and be connected with universal spherical axle 2035, and the one end that two universal spherical axles 2035 kept away from each other is fixed connection in the opposite face of tray 201 and base 202 respectively, and the one end that two universal spherical axles 2035 are close to each other is through two supporting spring 8 respectively with the inside wall fixed connection of two spherical hoop covers 2034.
The implementation mode specifically comprises the following steps: the three-phase asynchronous motor body 1 can generate vibration in the operation process, vibration is distributed to the plurality of damping devices 203 through the tray 201, the damping devices 203 are under the influence of vibration, the damping shaft 2032 can correspondingly stretch and retract in the damping cylinder 2031 to correspondingly, the damping shaft 2033 can be pulled or pressed in the process of stretching and retracting in the damping cylinder 2031, the damping spring 2033 is deformed when being under the action of tensile force or extrusion force, the elastic force generated when the damping spring 2033 deforms is utilized, so that a certain damping effect can be exerted on the bottom of the three-phase asynchronous motor body 1, and because the damping shaft 2032 deforms in the damping cylinder 2031 in the corresponding stretching and retracting process, the bottom of the tray 201 can twist in the corresponding spherical sleeve 2034 through the universal spherical hoop shaft 2035 located above, the supporting spring 2034 internally installed in the spherical sleeve 2034 is pulled or pressed to deform, the top of the base 202 can change the inclination angle of the three-phase asynchronous motor 2034 by pulling or pressing the spherical sleeve 2034 internally installed in the corresponding universal shaft hoop 5 located below, and the asynchronous motor can change the inclination angle of the asynchronous motor 2031.
Specifically, the other end of the third bridge-type connecting pipe 7 is connected with an air filter, and the air filter is used for filtering inflammable and explosive gases in air.
The implementation mode is specifically as follows: the air filter is used for filtering inflammable and explosive gases in the air, so that the air without inflammable and explosive substances can be provided for the inside of the three-phase asynchronous motor main body 1.
Specifically, the surfaces of the first branch pipe 206, the second branch pipe 208, the first bridge connecting pipe 210 and the first air supplement pipe 211 are all provided with a check valve, and the surface of the second air supplement pipe 212 is provided with a control valve.
Specifically, the end of the first branch pipe 206 is connected to the surface of the shock absorbing cylinder 2031, and the end of the second branch pipe 208 is connected to the surface of the shock absorbing cylinder 2031.
Specifically, 3 fixed mounting of arc shock attenuation adhesive tape are in the inside wall of tray 201, and the shape of tray 201 inside wall agrees with the shape of 1 fuselage bottom of three-phase asynchronous motor main part, and the equal fixed connection of shock attenuation board 4 and shock attenuation strip 5 is a plurality of at the inside wall of base 202, and the quantity of shock attenuation strip 5 and shock attenuation board 4 is a plurality of, and a plurality of shock attenuation boards 4 and a plurality of shock attenuation strip 5 intercrossing range.
The implementation mode is specifically as follows: the arc-shaped damping rubber strip 3, the damping plate 4 and the damping strip 5 have a certain damping function.
Working principle, when in use:
the three-phase asynchronous motor main body 1 can generate vibration in the operation process, the vibration is distributed to the plurality of damping devices 203 through the tray 201, under the influence of the vibration, the damping shaft 2032 can correspondingly stretch and retract in the damping cylinder 2031 to correspondingly stretch and retract, the damping shaft 2033 can pull or extrude the damping spring 2033 in the process of stretching and retracting in the damping cylinder 2031, the damping spring 2033 can deform under the action of tensile force or extrusion force, the elastic force generated when the damping spring 2033 deforms is utilized, so that a certain damping effect can be exerted on the bottom of the three-phase asynchronous motor main body 1, and because the damping shaft 2032 can twist in the corresponding spherical sleeve 2034 through the universal hoop shaft 2035 positioned above in the process of correspondingly stretching and retracting in the damping cylinder 2031, the internal support spring 8 of the spherical hoop sleeve 2034 can deform by pulling or extruding, the top of the base 202 can be deformed in the corresponding spherical hoop sleeve 2034 through the universal shaft 2035 positioned below, and the three-phase asynchronous motor main body can be stably pulled and the three-phase asynchronous motor main body 2031 can be pulled and the three-phase asynchronous motor main body can be more stably extruded in the inclination angle of the asynchronous motor main body 203, and the three-phase asynchronous motor can be more stably extruded by the three-phase asynchronous motor main body 2031;
when the damping shaft 2032 makes an extending motion in the damping cylinder 2031 during a corresponding extending motion of the damping shaft 2032 in the damping cylinder 2031, the check valve on the first branch pipe 206 is opened, the damping cylinder 2031 will draw gas without flammable and combustible substances sucked by the first branch pipe 206, the suction pipe 207 and the second bridge connection pipe 6, when the damping shaft 2032 makes a retracting motion in the damping cylinder 2031, the check valve on the second branch pipe 208 is opened, the check valve on the first branch pipe 206 is closed, gas without flammable and combustible substances sucked in the damping cylinder 2031 will be introduced into the pressure storage tank 205 through the second branch pipe 208, the exhaust pipe 209 and the third bridge connection pipe 7, when the gas without flammable and combustible substances stored in the pressure storage tank 205 can satisfy a certain pressure intensity, the first bridge connection pipe 210 will be opened, the gas without flammable and combustible substances extra in the pressure storage tank 205 will enter the buffer tank 204 through the first bridge connection pipe 210, the three-phase asynchronous motor will be prevented from entering the asynchronous motor main body 204 when the three-phase asynchronous motor main body 1 is operated, the three-phase asynchronous motor can always take heat out when the three-phase asynchronous motor main body asynchronous motor main body 1 is operated without flammable and the three-phase asynchronous motor can be taken up, from can providing the heat dissipation function for three-phase asynchronous motor main part 1, three-phase asynchronous motor main part 1 before the start, the staff opens the valve on the second air supply pipe 212, and the air that does not contain flammable and explosive material in the pressure accumulation jar 205 will flow into the inside of three-phase asynchronous motor main part 1 fast to can discharge the inside air of three-phase asynchronous motor main part 1, effectively guaranteed that three-phase asynchronous motor main part all has good stability at start-up and whole operation stage.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (5)
1. An explosion-proof type three-phase asynchronous motor comprises a three-phase asynchronous motor main body (1) and is characterized in that a constant voltage component (2) is fixedly mounted at the bottom of the three-phase asynchronous motor main body (1), the constant voltage component (2) comprises a damping device (203), a buffer tank (204) and a pressure accumulation tank (205), the damping device (203) has a damping effect on the three-phase asynchronous motor main body (1), the damping device (203) also performs air suction and exhaust actions on the telescopic action when the damping device (203) damps the three-phase asynchronous motor main body (1), air discharged by the damping device (203) is respectively stored in the pressure accumulation tank (205) and the buffer tank (204) and is used for keeping the air pressure intensity inside the three-phase asynchronous motor main body (1) constant, an arc-shaped damping rubber strip (3) is further arranged between the constant voltage component (2) and the three-phase asynchronous motor main body (1), and a damping plate (4) and a damping strip (5) are arranged in the constant voltage component (2);
the constant voltage assembly (2) further comprises a tray (201), the bottom of the body of the three-phase asynchronous motor main body (1) is fixedly mounted on the inner side of the tray (201), the tray (201) is embedded on the inner side of the base (202), a plurality of damping devices (203) which are linearly arranged are fixedly connected to the top of the base (202), the tops of the damping devices (203) are fixedly connected with the bottom of the tray (201), first branch pipes (206) are communicated with the surfaces of the damping devices (203), the other ends of the first branch pipes (206) are communicated with one another through air suction pipes (207), second branch pipes (208) are communicated with the surfaces of the damping devices (203), and the other ends of the second branch pipes (208) are communicated with one another through air discharge pipes (209);
a buffer tank (204) and a pressure accumulation tank (205) are respectively embedded in the inner side of the bottom of the base (202), a first bridge type connecting pipe (210) is communicated with the end face of one side of the pressure accumulation tank (205), and the other end of the first bridge type connecting pipe (210) is communicated with one face, close to the buffer tank (204);
a first air supply pipe (211) is communicated with the side end face of the cache tank (204), the other end of the first air supply pipe (211) is communicated with the bottom of the machine body of the three-phase asynchronous motor main body (1), a second air supply pipe (212) is communicated with the side end face of the pressure accumulation tank (205), and the other end of the second air supply pipe (212) is communicated with the bottom of the machine body of the three-phase asynchronous motor main body (1);
the two sides of the top of the base (202) are fixedly connected with a plurality of linearly arranged damping devices (203), the exhaust pipes (209) positioned on the two sides are communicated through a third bridge type connecting pipe (7), the other end of the third bridge type connecting pipe (7) is communicated with the end surface of the other side of the pressure accumulation tank (205), the air suction pipes (207) positioned on the two sides are communicated through a second bridge type connecting pipe (6), and the other end of the third bridge type connecting pipe (7) is communicated with the ground surface;
the damping device (203) comprises a damping cylinder (2031), a damping shaft (2032) is sleeved in the damping cylinder (2031), a damping spring (2033) is fixedly connected to the bottom end face of the damping shaft (2032), and the other end of the damping spring (2033) is fixedly connected to the end face of the inner side of the damping cylinder (2031);
spherical hoop sleeves (2034) are clamped at the ends, far away from each other, of the shock absorption barrel (2031) and the shock absorption shaft (2032), universal spherical shafts (2035) are rotatably connected in the two spherical hoop sleeves (2034), the ends, far away from each other, of the two universal spherical shafts (2035) are fixedly connected to the opposite surfaces of the tray (201) and the base (202) respectively, and the ends, close to each other, of the two universal spherical shafts (2035) are fixedly connected with the inner side walls of the two spherical hoop sleeves (2034) respectively through two supporting springs (8);
the end of the first branch pipe (206) is communicated with the surface of the shock absorption cylinder (2031), and the end of the second branch pipe (208) is communicated with the surface of the shock absorption cylinder (2031).
2. An explosion-proof three-phase asynchronous machine according to claim 1, characterized in that the other end of said third bridge connection tube (7) is connected with an air filter for filtering inflammable and explosive gases in the air.
3. An explosion-proof type three-phase asynchronous motor according to claim 2, characterized in that the surfaces of the first branch pipe (206), the second branch pipe (208), the first bridge connecting pipe (210) and the first air supplement pipe (211) are all provided with one-way valves, and the surface of the second air supplement pipe (212) is provided with a control valve.
4. The explosion-proof three-phase asynchronous motor according to claim 1, characterized in that the arc-shaped shock-absorbing rubber strips (3) are fixedly arranged on the inner side wall of the tray (201), and the shape of the inner side wall of the tray (201) is matched with the shape of the bottom of the body of the three-phase asynchronous motor main body (1).
5. An explosion-proof type three-phase asynchronous motor according to claim 1, characterized in that the damping plates (4) and the damping bars (5) are both fixedly connected to the inner side wall of the base (202), the number of the damping bars (5) and the damping plates (4) is multiple, and the damping plates (4) and the damping bars (5) are arranged in a mutually crossing manner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211086593.9A CN115189503B (en) | 2022-09-07 | 2022-09-07 | Explosion-proof type three-phase asynchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211086593.9A CN115189503B (en) | 2022-09-07 | 2022-09-07 | Explosion-proof type three-phase asynchronous motor |
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| CN115189503A CN115189503A (en) | 2022-10-14 |
| CN115189503B true CN115189503B (en) | 2022-11-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201947138U (en) * | 2011-02-16 | 2011-08-24 | 浙江创新电机有限公司 | Explosion-proof type three-phase asynchronous motor for fan |
| CN207588649U (en) * | 2017-12-11 | 2018-07-06 | 常州欧德思电机电器有限公司 | A kind of threephase asynchronous machine with heat sinking function |
| CN111404344B (en) * | 2019-10-09 | 2022-07-08 | 江苏锡安达防爆股份有限公司 | Explosion-proof three-phase asynchronous motor suitable for mine working condition |
| CN213602475U (en) * | 2020-10-28 | 2021-07-02 | 泰州市勤宇电机设备制造有限公司 | High-efficiency explosion-proof three-phase asynchronous motor |
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