CN112134411B

CN112134411B - Self-ventilation traction motor

Info

Publication number: CN112134411B
Application number: CN202011074668.2A
Authority: CN
Inventors: 李晓宇
Original assignee: Zhejiang Jiang Yu Motor Co ltd
Current assignee: Zhejiang Jiang Yu Motor Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-11-16
Anticipated expiration: 2040-10-09
Also published as: CN112134411A

Abstract

The invention discloses a self-ventilation traction motor. The invention comprises a shell, a driving shaft and a rotor, wherein the rotor is connected with one side in the shell, the driving shaft is connected with one end of the rotor, an air inlet cover is connected with one side outside the shell, an air outlet cover is embedded and installed at the top end of one side of the outer wall of the shell, liquid storage hoppers are respectively arranged at two sides of the outer wall of the rotor, blades are sleeved at the top end of the outer part of the driving shaft, an air inlet pipe is embedded and installed at the top end of one side of the outer wall of the liquid storage hoppers, and constant pressure pipes are installed at one side of the outer walls of the two liquid storage hoppers. And realizes the automatic lubrication of the joint of the driving shaft.

Description

Self-ventilation traction motor

Technical Field

The invention relates to the technical field of motor equipment, in particular to a self-ventilation traction motor.

Background

The electric machine is used for traction on railway main electric locomotives, industrial and mining electric locomotives, electric transmission internal combustion locomotives and various electric vehicles. The traction motor comprises a traction motor, a traction generator and an auxiliary motor, the working principle of the traction motor is the same as that of a general direct current motor, but the space size of the traction motor is limited by the rail gauge and the diameter of a driving wheel under special working conditions, and the traction motor is subjected to considerable impact vibration when the locomotive runs through rail gaps and turnouts.

However, the existing traction motor has the problem that the ventilation and heat dissipation performance inside the traction motor and the automatic lubrication of the connection part of the driving shaft cannot be realized when the traction motor is used, so that the stability performance of the inside of the traction motor during operation is poor.

Disclosure of Invention

The invention aims to provide a self-ventilation traction motor, which solves the problem that the prior traction motor in the background art cannot realize ventilation heat dissipation performance inside the traction motor and automatic lubrication of a connecting part of a driving shaft when in use, so that the stability performance of the inside of the traction motor in operation is poor.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a from ventilation traction motor, includes shell, drive shaft and rotor, the rotor with the inside one side of shell is connected, the drive shaft with rotor one end is connected, shell internally mounted has ventilation mechanism, the drive shaft outside is cup jointed and is installed the mechanism of making an uproar of falling, it installs outage mechanism to fall the mechanism inner wall of making an uproar, ventilation mechanism is used for the inside air current that forms of shell is right the heat that the rotor produced is discharged, it is right that the mechanism of making an uproar is used for falling the noise that the drive shaft produced when rotating weakens, outage mechanism is used for right when the inside high temperature of shell is right the circuit of rotor breaks off.

Further, ventilation mechanism includes the air inlet cover, goes out the fan housing, the stock solution fill, blade, intake pipe, constant voltage pipe and feed liquor pipe, the air inlet cover with the outside one side of shell is connected, it installs in to go out the fan housing embedding shell outer wall one side top, the stock solution fill is seted up respectively rotor outer wall both sides, the blade cup joint in the outside top of drive shaft, the intake pipe embedding install in stock solution fill outer wall one side top, the constant voltage pipe is installed in two stock solution fill outer wall one side, feed liquor pipe embedding install in stock solution fill outer wall bottom one side.

Furthermore, one the inside coolant liquid that is deposited of liquid storage fill, another the inside lubricating oil liquid that is deposited of liquid storage fill, the inside middle part embedding of constant pressure tube is installed movable spacer.

Further, the noise reduction mechanism comprises a silencing pipe, an energy dissipation side cavity, an air inlet and a flow blocking separation blade, the silencing pipe is sleeved on the inner wall of the shell, the energy dissipation side cavity is respectively arranged on two sides of the outer wall of the silencing pipe, the air inlet is uniformly arranged on two sides of the inner wall of the silencing pipe, and the flow blocking separation blade is uniformly arranged on one side of the inner wall of the energy dissipation side cavity.

Further, outage mechanism includes temperature sensor, connects electric cable, right angle bull stick, hydraulic pressure push rod and connects the electric end, the temperature sensor embedding is installed hush pipe inner wall one side, connect the electric cable to install the outside one side of drive shaft, the right angle bull stick with connect electric cable one end and be connected, hydraulic pressure push rod top with the outside one side of right angle bull stick is connected, connect the electric end inside with connect the electric cable top and be connected.

Further, go out fan housing inner wall mid-mounting and have exhaust mechanism, exhaust mechanism includes cowl, removable cover, exhaust duct, reset spring and dustproof gauze, the cowl embedding is installed go out fan housing inner wall middle part, removable cover movable mounting is in the inside middle part of cowl, the exhaust duct is seted up respectively the inside both sides of cowl, the reset spring embedding is installed cowl with junction between the removable cover.

Furthermore, the dustproof gauze is embedded in the air inlet cover.

Further, unable adjustment base is installed to the outside bottom joint of shell, just unable adjustment base bottom subsides to cover installs the rubber backing plate.

Further, the air inlet cover with through nut fixed connection between the shell, just the even coating in shell outer wall surface has the anti-rust paint.

Furthermore, the shape of the arc-shaped baffle is an inverted U-shaped baffle.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the ventilation mechanism is arranged, when the rotor drives the driving shaft to rotate at a high speed, the driving shaft drives the blades to rotate, external air is sent into the shell from the air inlet cover by the rotation of the blades, heat generated in the shell is absorbed, air flow after heat absorption can enter the liquid storage hopper through the air inlet pipe, the heat is secondarily absorbed by cooling liquid, and meanwhile, through the connection between the constant pressure pipe and the other liquid storage hopper, lubricating oil can be injected into the rotating connection position of the driving shaft from the liquid inlet pipe under the action of pressure difference, so that the ventilation and heat dissipation performance in the traction motor is realized, the automatic lubrication of the connection position of the driving shaft is realized, and the stability of the interior of the traction motor in operation is ensured.

Through being provided with the mechanism of making an uproar that falls, the noise that drive shaft and rotor produced at the during operation enters into energy dissipation side intracavity portion through the inside inlet port of hush pipe, can reflect the reduction to the noise one by one through the choked flow separation blade of inlet port department to the performance of making an uproar falls in the during operation of traction motor has effectively been improved.

Through being provided with outage mechanism, when temperature sensor detected the shell high temperature, promote the right angle bull stick through hydraulic push rod and rotate, with the inside electric cable that connects of traction motor with connect and carry out the disconnection separation between the electric end to realized the inside high temperature power-off protection of traction motor, solved traction motor high temperature work and broken down, leaded to the inside electrical component of traction motor to take place the problem of damage.

Through being provided with exhaust mechanism, when the inside air current of liquid storage bucket was discharged through going out the fan housing, upwards remove in cowl department through promoting the air current removable cover, open the exhaust duct of cowl department and can discharge the air current to close between removable cover and the cowl through reset spring, thereby to going out the inside closure of fan housing when guaranteeing that the fan housing is inside to be stable carminative, avoided falling into of external dust.

Drawings

FIG. 1 is a schematic structural diagram according to an embodiment of the present invention;

FIG. 2 is a schematic view of the interior of the motor in the embodiment of FIG. 1;

FIG. 3 is an enlarged schematic view of the embodiment of FIG. 1 at A;

FIG. 4 is a schematic view of the interior of the muffler pipe in the embodiment of FIG. 1;

FIG. 5 is an enlarged schematic view of the embodiment of FIG. 1 at B;

fig. 6 is a schematic structural view of the inside of the wind outlet housing in the embodiment of fig. 1.

Reference numerals: 1. a housing; 2. a drive shaft; 3. a ventilation mechanism; 301. an air inlet cover; 302. an air outlet cover; 303. a liquid storage hopper; 304. a blade; 305. an air inlet pipe; 306. a constant pressure pipe; 307. a liquid inlet pipe; 4. a rotor; 5. a noise reduction mechanism; 501. a sound-deadening tube; 502. energy dissipation side cavities; 503. an air inlet; 504. flow blocking baffle plates; 6. a power-off mechanism; 601. a temperature sensor; 602. connecting a power cable; 603. a right-angle rotating rod; 604. a hydraulic push rod; 605. connecting a power terminal; 7. an exhaust mechanism; 701. an arc-shaped baffle plate; 702. a removable cover plate; 703. an exhaust groove; 704. a return spring; 705. a dust-proof gauze; 8. and fixing the base.

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. 1-6, a self-ventilation traction motor includes a housing 1, a driving shaft 2 and a rotor 4, the rotor 4 is connected to one side inside the housing 1, the driving shaft 2 is connected to one end of the rotor 4, a ventilation mechanism 3 is installed inside the housing 1, a noise reduction mechanism 5 is installed outside the driving shaft 2 in a sleeved manner, and a power-off mechanism 6 is installed on the inner wall of the noise reduction mechanism 5.

Ventilation mechanism 3 includes air inlet cover 301, go out fan cover 302, the stock solution fill 303, blade 304, intake pipe 305, balanced pressure pipe 306 and feed liquor pipe 307, air inlet cover 301 is connected with 1 outside one side of shell, it installs on 1 outer wall one side top of shell to go out fan cover 302 embedding, 4 outer wall both sides of rotor are seted up respectively to the stock solution fill 303, blade 304 cup joints in 2 outside tops of drive shaft, intake pipe 305 embedding is installed on the top of stock solution fill 303 outer wall one side, balanced pressure pipe 306 is installed in two stock solution fill 303 outer wall one sides, feed liquor pipe 307 embedding is installed in stock solution fill 303 outer wall bottom one side, the inside coolant liquid that has deposited of a stock solution fill 303, the inside lubricating oil that has deposited of another stock solution fill 303, the inside middle part embedding of balanced pressure pipe 306 installs movable spacer.

When rotor 4 drives drive shaft 2 and carries out high-speed rotation, it is rotatory to drive blade 304 through drive shaft 2, rotate by blade 304 and send into the external gas inside shell 1 by air inlet cover 301, absorb the heat that the shell 1 is inside to produce, air current accessible intake pipe 305 after the heat absorption enters into inside liquid storage bucket 303, carry out the secondary absorption to the heat by the coolant liquid, simultaneously through being connected between constant-pressure pipe 306 and another liquid storage bucket 303, under the effect of pressure differential, can pour into lubricating oil into drive shaft 2 rotation junction into by feed liquor pipe 307, thereby realized the inside ventilation heat dispersion to traction motor, and realized the self-lubricate to drive shaft 2 junction, guaranteed the stability ability of traction motor inside when the operation.

The noise reduction mechanism 5 comprises a silencing pipe 501, energy dissipation side cavities 502, air inlet holes 503 and flow blocking baffles 504, the silencing pipe 501 is sleeved on the inner wall of the shell 1, the energy dissipation side cavities 502 are respectively arranged on two sides of the outer wall of the silencing pipe 501, the air inlet holes 503 are uniformly arranged on two sides of the inner wall of the silencing pipe 501, and one side of the inner wall of the energy dissipation side cavity 502 is uniformly installed on each flow blocking baffle 504.

Noise generated by the driving shaft 2 and the rotor 4 during working enters the energy dissipation side cavity 502 through the air inlet 503 in the silencing pipe 501, and the noise can be reflected and reduced gradually through the flow blocking baffle 504 at the air inlet 503, so that the noise reduction performance of the traction motor during working is effectively improved.

The power-off mechanism 6 comprises a temperature sensor 601, a power-on cable 602, a right-angle rotating rod 603, a hydraulic push rod 604 and a power-on terminal 605, wherein the temperature sensor 601 is embedded into one side of the inner wall of the silencing tube 501, the power-on cable 602 is installed on one side of the outer portion of the driving shaft 2, the right-angle rotating rod 603 is connected with one end of the power-on cable 602, the top end of the hydraulic push rod 604 is connected with one side of the outer portion of the right-angle rotating rod 603, and the inside of the power-on terminal 605 is connected with the top end of the power-on cable 602.

When the temperature sensor 601 detects that the temperature of the shell 1 is too high, the hydraulic push rod 604 pushes the right-angle rotating rod 603 to rotate, and the power connection cable 602 inside the traction motor is disconnected from the power connection end 605, so that high-temperature power-off protection inside the traction motor is realized, and the problem that electric elements inside the traction motor are damaged due to failure of high-temperature work of the traction motor is solved.

Air-out cover 302 inner wall mid-mounting has exhaust mechanism 7, exhaust mechanism 7 includes cowl 701, removable cover 702, exhaust duct 703, reset spring 704 and dust screen 705, cowl 701 embedding is installed at air-out cover 302 inner wall middle part, removable cover 702 movable mounting is in the inside middle part of cowl 701, cowl 701's shape is the type of falling U, exhaust duct 703 sets up respectively in cowl 701 inside both sides, reset spring 704 embedding is installed in the junction between cowl 701 and removable cover 702.

When the inside air current of liquid storage bucket 303 discharges through going out fan housing 302, upwards remove in cowl 701 department through promoting removable cover 702 with the air current, open exhaust groove 703 that cowl 701 located and can discharge the air current to close through reset spring 704 between removable cover 702 and cowl 701, thereby to going out the inside closure of fan housing 302 when guaranteeing that fan housing 302 is inside to stabilize carminative, avoided falling into of external dust.

The dustproof gauze 705 is embedded in the air inlet cover 301, and dust and impurities entering the air inlet cover 301 can be filtered through the dustproof gauze 705.

In order to ensure the stability of the bottom end of the shell 1 during the working, the fixed base 8 is installed at the bottom end outside the shell 1 in a clamping mode, and a rubber base plate is installed at the bottom end of the fixed base 8 in a covering mode.

In order to facilitate the maintenance and overhaul of the interior of the traction motor and improve the corrosion resistance of the outer wall of the shell 1, the air inlet cover 301 is fixedly connected with the shell 1 through a nut, and the surface of the outer wall of the shell 1 is uniformly coated with antirust paint.

In summary, when the self-ventilation traction motor provided by the present invention works, firstly, when the rotor 4 drives the driving shaft 2 to rotate at a high speed, the driving shaft 2 drives the blades 304 to rotate, the blades 304 rotate to send the outside air into the inside of the housing 1 from the air inlet cover 301, heat generated inside the housing 1 is absorbed, the air flow after absorbing heat enters the inside of the liquid storage bucket 303 through the air inlet pipe 305, the heat is secondarily absorbed by the cooling liquid, and meanwhile, through the connection between the constant pressure pipe 306 and the other liquid storage bucket 303, under the action of the pressure difference, the lubricating oil can be injected into the rotation connection position of the driving shaft 2 through the liquid inlet pipe 307.

Then, noise generated by the driving shaft 2 and the rotor 4 during operation enters the energy dissipation side cavity 502 through the air inlet 503 inside the silencing pipe 501, and the noise can be reflected and reduced gradually through the flow blocking baffle 504 at the air inlet 503, so that the noise reduction performance of the traction motor during operation is effectively improved.

Then, when the air inside the liquid storage tank 303 is discharged through the air outlet cover 302, the air pushes the movable cover plate 702 to move upwards at the arc-shaped baffle plate 701, the air discharge groove 703 at the arc-shaped baffle plate 701 is opened to discharge the air, and the movable cover plate 702 and the arc-shaped baffle plate 701 are closed through the return spring 704.

Finally, when the temperature sensor 601 detects that the temperature of the shell 1 is too high, the hydraulic push rod 604 pushes the right-angle rotating rod 603 to rotate, and the power connection cable 602 inside the traction motor is disconnected from the power connection end head 605, so that high-temperature power-off protection inside the traction motor is realized.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A self-ventilation traction motor comprises a shell (1), a driving shaft (2) and a rotor (4), wherein the rotor (4) is connected with one side inside the shell (1), the driving shaft (2) is connected with one end of the rotor (4), and the self-ventilation traction motor is characterized in that a ventilation mechanism (3) is installed inside the shell (1), a noise reduction mechanism (5) is installed outside the driving shaft (2) in a sleeved mode, and a power-off mechanism (6) is installed on the inner wall of the noise reduction mechanism (5);

the ventilation mechanism (3) is used for forming air flow in the shell (1) to exhaust heat generated by the rotor (4), the noise reduction mechanism (5) is used for weakening noise generated when the driving shaft (2) rotates, and the power cut-off mechanism (6) is used for cutting off the circuit of the rotor (4) when the temperature in the shell (1) is too high; ventilation mechanism (3) are including air inlet cover (301), play wind cover (302), stock solution fill (303), blade (304), intake pipe (305), constant voltage pipe (306) and feed liquor pipe (307), air inlet cover (301) with shell (1) outside one side is connected, go out wind cover (302) embedding install in shell (1) outer wall one side top, set up respectively in stock solution fill (303) rotor (4) outer wall both sides, blade (304) cup joint in drive shaft (2) outside top, intake pipe (305) embedding install in stock solution fill (303) outer wall one side top, constant voltage pipe (306) install in two stock solution fill (303) outer wall one side, feed liquor pipe (307) embedding install in stock solution fill (303) outer wall bottom one side.

2. The self-ventilation traction motor as claimed in claim 1, wherein a cooling liquid is stored in one of the liquid storage hoppers (303), a lubricating oil liquid is stored in the other liquid storage hopper (303), and a movable spacer is embedded in the middle of the inside of the constant pressure pipe (306).

3. The self-ventilation traction motor according to claim 1, wherein the noise reduction mechanism (5) comprises a silencing pipe (501), energy dissipation side cavities (502), air inlet holes (503) and flow blocking baffles (504), the silencing pipe (501) is sleeved on the inner wall of the housing (1), the energy dissipation side cavities (502) are respectively arranged on two sides of the outer wall of the silencing pipe (501), the air inlet holes (503) are uniformly arranged on two sides of the inner wall of the silencing pipe (501), and one side of the inner wall of the energy dissipation side cavity (502) is uniformly installed on the flow blocking baffles (504).

4. The self-ventilation traction motor is characterized in that the power-off mechanism (6) comprises a temperature sensor (601), a power-connection cable (602), a right-angle rotating rod (603), a hydraulic push rod (604) and a power-connection end (605), wherein the temperature sensor (601) is embedded and installed on one side of the inner wall of the silencing tube (501), the power-connection cable (602) is installed on one side of the outer portion of the driving shaft (2), the right-angle rotating rod (603) is connected with one end of the power-connection cable (602), the top end of the hydraulic push rod (604) is connected with one side of the outer portion of the right-angle rotating rod (603), and the inside of the power-connection end (605) is connected with the top end of the power-connection cable (602).

5. The self-ventilation traction motor is characterized in that an exhaust mechanism (7) is installed in the middle of the inner wall of the air outlet cover (302), the exhaust mechanism (7) comprises an arc-shaped baffle plate (701), a movable cover plate (702), an exhaust groove (703), a reset spring (704) and a dustproof gauze (705), the arc-shaped baffle plate (701) is installed in the middle of the inner wall of the air outlet cover (302) in an embedded mode, the movable cover plate (702) is installed in the middle of the inside of the arc-shaped baffle plate (701) in a movable mode, the exhaust groove (703) is respectively formed in two sides of the inside of the arc-shaped baffle plate (701), and the reset spring (704) is installed in the embedded mode at the connecting position between the arc-shaped baffle plate (701) and the movable cover plate (702).

6. A self-ventilating traction motor as defined in claim 5, wherein said dust screen (705) is mounted flush inside said air inlet hood (301).

7. The self-ventilation traction motor according to claim 2, wherein the outer bottom end of the housing (1) is provided with a fixed base (8) in a clamping manner, and a rubber base plate is attached to the bottom end of the fixed base (8).

8. The self-ventilation traction motor as claimed in claim 1, wherein the air inlet cover (301) is fixedly connected with the housing (1) through a nut, and the outer wall surface of the housing (1) is uniformly coated with antirust paint.

9. A self-ventilating traction motor as defined in claim 5, wherein said cowl (701) is shaped as an inverted U.