CN112202272A - Brush assembly, brush installation assembly and motor - Google Patents
Brush assembly, brush installation assembly and motor Download PDFInfo
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- CN112202272A CN112202272A CN202010990141.8A CN202010990141A CN112202272A CN 112202272 A CN112202272 A CN 112202272A CN 202010990141 A CN202010990141 A CN 202010990141A CN 112202272 A CN112202272 A CN 112202272A
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- oil
- motor body
- brush
- arc
- cooled motor
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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
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/145—Fixedly supported brushes or brush holders, e.g. leaf or leaf-mounted brushes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
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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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
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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
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention belongs to the technical field of motors, and particularly relates to a brush assembly, a brush mounting assembly and a motor, wherein the motor comprises an oil-cooled motor body, a motor shaft, a mounting seat and a damping unit; the damping unit comprises a mounting plate, a fixed block, an arc toothed plate, a screw and a sliding block; according to the invention, by arranging the damping unit, rigid damping is used for replacing elastic damping through mutual matching among the arc toothed plate, the reset spring and the screw rod, the defect of continuous vibration in elastic damping is eliminated, and the elastic damping realizes the damping effect on the oil-cooled motor body, but can accelerate oil to drip from the oil-cooled motor body, and reduce the subsequent oil-cooled treatment effect on the motor, so that the treatment time of the oil on the oil-cooled motor body is prolonged, further the timely dissipation of heat generated in the working process of the motor is realized, and the service life of the motor is prolonged.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a brush assembly, a brush mounting assembly and a motor.
Background
An Electric machine (also known as "motor") refers to an electromagnetic device that converts or transmits Electric energy according to the law of electromagnetic induction. The motor is represented by a letter M (old standard is represented by a letter D) in a circuit, the motor mainly plays a role of generating driving torque and serving as a power source of electrical appliances or various machines, the generator is represented by a letter G in a circuit, and the generator mainly plays a role of converting mechanical energy into electric energy. The motor is classified into a brushless motor and a brush motor, and the brush motor is a rotating motor that includes a brush device therein and converts electric energy into mechanical energy (motor) or converts mechanical energy into electric energy (generator). The brush motor is the basis of all motors, and has the characteristics of quick start, timely braking, capability of smoothly regulating the speed in a large range, relatively simple control circuit and the like.
The brush motor consists of two parts, stator and rotor, the stator has magnetic poles (winding or permanent magnet type), the rotor has windings, after being electrified, the rotor also forms magnetic field (magnetic pole), there is an included angle between the magnetic poles of the stator and rotor, and the motor rotates under the mutual attraction of the magnetic fields of the stator and rotor (between N pole and S pole). By changing the position of the electric brush, the direction of the included angle of the magnetic poles of the stator and the rotor (assuming that the magnetic pole of the stator is the initial side of the included angle, the magnetic pole of the rotor is the other side, and the direction from the magnetic pole of the rotor to the magnetic pole of the stator is the rotating direction of the motor) can be changed, thereby changing the rotating direction of the motor.
As one of the most common power sources, motors are used in various fields, such as: mining of mineral substance in the mining area, because in the mining of mining area, the mining depth of mining area is darker and the ground of mining area jolts not level, can produce a large amount of heats in the work of motor, consequently, need cool down the processing to the motor, at this moment, can think of and adopt oil cooling to cool down the motor, select oil cooling, on the one hand, can realize the thermal reduction in the motor work, on the other hand, the production of electric spark can be avoided to oil cooling, the explosion of mining area that the electric spark reason leads to in having eliminated the mining area environment, however, when oil cooling motor body damages, oil can be followed oil cooling motor body and dripped, and oil cooling motor's vibration can accelerate dripping of oil, the treatment effect of follow-up oil cooling to the motor has been lost, make this technical scheme receive the restriction.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problem that oil drips from the damaged part of the motor due to the vibration of the motor in the process of cooling the motor in an oil cooling mode, the invention provides an electric brush assembly, an electric brush mounting assembly and the motor.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention discloses a motor which comprises an oil-cooled motor body, a motor shaft, a mounting seat and a damping unit, wherein the motor shaft is arranged on the oil-cooled motor body; the motor shaft is arranged at the end part of the oil-cooled motor body; the mounting seats are symmetrically arranged along the oil-cooled motor body, one of the mounting seats is arranged at the end part of the oil-cooled motor body through a shaft, and the other mounting seat is sleeved on a motor shaft through a lantern ring; the damping unit is arranged on the lower end face of the mounting seat and comprises a mounting plate, a fixed block, an arc toothed plate, a screw and a sliding block; the mounting plate is connected with the mounting seat through a pin; the fixed block is provided with a first cavity and a first channel; one end of the screw is rotatably arranged on the lower end face of the mounting plate, and the other end of the screw passes through the first channel, is positioned in the first cavity and is connected with the push column; the sliding blocks are positioned on two sides of the screw rod and are arranged on the lower end surface of the mounting plate in a sliding mode; the arc toothed plate consists of a group of elastic toothed plates and a rigid toothed plate, the two end parts of the arc toothed plate are both elastic toothed plates, one end of the arc toothed plate is hinged to the sliding block, the other end of the arc toothed plate is positioned in the first channel, and the arc toothed plate is meshed with the screw rod; a return spring is arranged in the first channel positioned at the end part of the arc toothed plate; through the mutual matching among the arc toothed plate, the reset spring and the screw rod, the rigid shock absorption of the oil cooling motor body is realized; as one of the most common power sources, motors are used in various fields, such as: the mining of mineral substances in a mining area, because the mining depth of the mining area is deep and the ground of the mining area jolts unevenly in the mining area, a large amount of heat can be generated in the working process of a motor, the motor needs to be cooled, at the moment, the motor is cooled by adopting oil cooling, and oil cooling is selected, on one hand, the reduction of the heat in the working process of the motor can be realized, on the other hand, the oil cooling can avoid the generation of electric sparks, the explosion of the mining area caused by the electric sparks in the mining area environment is eliminated, in addition, when the oil cooling motor body is damaged, oil can drip from the oil cooling motor body, the vibration of the oil cooling motor accelerates the dripping of the oil, the processing effect of the follow-up oil cooling on the motor is reduced, the application adopts a damping unit, through the mutual matching among an arc toothed plate, a reset spring and a screw rod, and utilizes rigid damping to replace elastic damping, thereby eliminating the defect of continuous shaking in elastic damping, the elastic shock absorption realizes the shock absorption effect on the oil-cooled motor body, but can accelerate the oil to drip from the oil-cooled motor body and reduce the subsequent oil cooling treatment effect on the motor, thereby prolonging the treatment time of the oil on the oil-cooled motor body, further realizing the timely dissipation of heat generated in the working process of the motor and prolonging the service life of the motor; when the oil-cooled motor works, when the oil-cooled motor body is slightly damaged and the motor does not shake, the probability that oil stored on the oil-cooled motor body drips from the oil-cooled motor body is reduced, but the motor can generate larger vibration during working due to the bumpiness of the ground in a mining area, and at the moment, the arranged damping unit plays a role in eliminating the vibration of the motor, so that the probability that the oil stored on the oil-cooled motor body drips from the oil-cooled motor body is reduced; when the oil-cooled motor body moves to one side close to the fixed block, the arc toothed plate moves to one side close to the inner wall of the first channel, the screw rod rotates due to mutual meshing between the arc toothed plate and the screw rod, meanwhile, due to the rotating screw rod, the speed of the arc toothed plate moving to one side close to the inner wall of the first channel is reduced, the oil-cooled motor body is prevented from instantly colliding to the fixed block, the arc toothed plate is composed of a group of elastic toothed plates and a group of rigid toothed plates, and the speed of the arc toothed plate moving to one side close to the inner wall of the first channel is further reduced; when the reset spring is pressed to the arc pinion rack, the arc pinion rack is under reset spring's effect, make the arc pinion rack to keeping away from the lateral motion of a passageway inner wall, arc pinion rack and screw rod cooperation, with oil-cooled motor body jack-up, though, reset spring in the elasticity shock attenuation has also been used, however, because the reset spring tip is not connected with the arc pinion rack, reset spring only gives arc pinion rack reverse effort, and in reset spring lasts trembling, the arc pinion rack has broken away from reset spring, the drawback that the elasticity shock attenuation leads to the continuous shake of oil-cooled motor body has been eliminated, make the probability that oil drips from oil-cooled motor body reduce, thereby both remain the oil cooling effect of oil to oil-cooled motor body, the life of oil-cooled motor body has been prolonged again.
Preferably, the lower end of the oil-cooled motor body is provided with a hollow bearing plate made of elastic materials; the inner wall of the hollow bearing plate is coated with a refrigerating working medium, one side surface of the bearing plate, which is close to the oil-cooled motor body, is provided with a concave groove, the middle part of the concave groove is provided with an inlet, the wall thickness of the inner wall of the hollow bearing plate, which is far away from the inlet, is gradually thinned from the middle part to two sides, and the bearing plate is respectively communicated with the first cavity through a pipeline; when the oil-cooled motor body is slightly damaged, the probability of oil dripping from the oil-cooled motor body caused by shaking of the oil-cooled motor body is eliminated through rigid shock absorption, but the oil still has the possibility of dripping from the oil-cooled motor body, when the oil drips from the oil-cooled motor body, the oil drips on the bearing plate, because the concave groove is arranged on one side of the bearing plate close to the oil-cooled motor body, the dropped oil flows to the middle part of the bearing plate, and enters the hollow part of the bearing plate through the inlet to be coated with the refrigeration working medium, because the temperature of the oil per se can be increased when the oil is used for carrying out oil cooling treatment on the oil-cooled motor body, therefore, the refrigeration working medium cools the oil entering the hollow part of the bearing plate, the wall thickness of the hollow inner wall of the bearing plate far away from the inlet is gradually thinned from the middle part to two sides, the cooled oil is convenient to enter the first cavity for storage, and secondary utilization of the oil is facilitated.
Preferably, the wall thickness of the hollow inner wall of the bearing plate close to one side of the inlet is gradually thickened from the middle part to two sides; when more oil drips from the oil-cooled motor body and the concave groove formed in the bearing plate cannot bear excessive oil, the wall thickness of the hollow inner wall of the bearing plate close to one side of the inlet is gradually thickened from the middle to two sides, so that the bearing plate moves towards one side far away from the oil-cooled motor body under the action of the gravity of the accumulated oil, the depth of the concave groove is increased, the concave groove can bear more dripped oil, and the dripped oil is prevented from dripping onto the ground over the concave groove and is not beneficial to secondary utilization of the oil; simultaneously, because the concave groove is to keeping away from the one side motion of oil-cooled motor body for be close to the size grow of the open end of oil-cooled motor body one side, the oil that the concave groove was accepted enters into and accepts board cavity for oil has further avoided oil to drip subaerially, thereby has further realized the reutilization to oil.
Preferably, the push column consists of a cylinder and a circular truncated cone, a rotating fan is sleeved on a screw rod outer ring positioned above the push column in the first cavity, and the rotation of the rotating fan is accelerated to pump the oil in the hollow bearing plate into the first cavity; when the arc pinion rack cooperation screw rod rotates for rotate the fan and rotate, the pivoted rotates the fan and has accelerated the oil of accepting board cavity and enter into a cavity for oil is stored in a cavity, has slowed down the concave groove and has accepted the degree of difficulty that board cavity held oil, makes even oil drip is too fast, oil also can be by abundant accepting, further realizes the reutilization to oil.
Preferably, the fixed block is symmetrically provided with a second channel and a third channel along the push column; two ends of the second channel are communicated with the first cavity, and in an initial state, one end of the second channel is blocked by the push column; one end of the third channel is communicated with the first cavity, the other end of the third channel is communicated with the first channel, and oil in the first cavity is pressed into the first channel through the third channel through the push column, so that the arc toothed plate is lubricated; when the oil in the hollow part of the bearing plate is pumped into the first chamber under the action of the rotating fan, the oil is in the first chamber above the push column, when the push column moves to one side close to the bottom of the first chamber, the push column loses the blocking effect on the second channel, so that the oil stored in the first chamber above the push column enters the first chamber below the push column through the second channel, and because the push column continues to move towards one side close to the bottom of the first cavity, the push column presses oil into the first channel through the third channel again, so that the lubrication of the arc-shaped toothed plate and the screw rod is realized, the phenomenon of pause caused by the continuous work of the arc-shaped toothed plate and the screw rod is prevented, the working time of the arc-shaped toothed plate and the screw rod is prolonged, therefore, the shaking amplitude of the oil-cooled motor body is eliminated, the probability of dripping oil from the oil-cooled motor body is further reduced, and the environmental adaptability of the motor is improved.
Preferably, each elastic toothed plate and each rigid toothed plate are uniformly provided with a group of first holes, and adjacent first holes which are close to the side wall of the first channel along the arc-shaped surface of the arc-shaped toothed plate are communicated with each other; through setting up a set of hole No. one, make the oil that enters into in the passageway No. one lubricate it in the outside of arc pinion rack alone, but get into the inside of arc pinion rack through a hole, from interior to exterior the lubrication to arc pinion rack, and simultaneously, will follow arc pinion rack arcwall face and be close to a passageway lateral wall adjacent a interpore intercommunication each other, fill a hole and intercommunication department through oil, the intensity of arc pinion rack has been strengthened, the life of arc pinion rack has been prolonged, make the arc pinion rack more of a specified duration and screw rod cooperation, realize the shock attenuation to the oil-cooled motor body, reduce the probability that oil drips from the oil-cooled motor body, thereby the environmental suitability of this motor has been improved.
Preferably, the cooling oil in the oil-cooled motor body is vegetable insulating oil; when the plant insulating oil is selected, the strong hydrophilicity of the plant insulating oil does not influence the good insulating property of the plant insulating oil, and can inhibit the aging of insulating paper in the transformer; therefore, the strong hydrophilicity and the large saturated water content of the vegetable insulating oil are just the advantages of the vegetable insulating oil, because the contained hydrophilic groups can absorb a part of water from the insulating paper, reduce the aging degradation speed of the insulating paper and prolong the service life of the insulating paper and the transformer.
Preferably, the stator core in the oil-cooled motor body is formed by laminating silicon steel sheets of annular sheet punching grooves with the thickness of 0.36-0.55 mm and the surfaces coated with insulating paint; through selecting stator core 0.36mm-0.55mm thick to form through folding, make the heat that every iron core piece produced, the homoenergetic distributes from folding the clearance, and simultaneously, the coating has insulating paint, has further strengthened stator core's insulating nature, the going on of the follow-up work of being convenient for.
A brush component is suitable for the motor and comprises a brush made of graphite materials, the brush is arranged on an elastic element through a brush mounting component, and the brush element comprises a connecting part and brush mounting parts positioned on two sides of the connecting part; the connecting part is used for connecting the electric brush frame.
A brush mounting assembly for mounting the brush assembly includes a press plate, a spacer and a catch; the sectional shapes of the pressing sheet, the gasket and the blocking sheet are the same as the sectional shape of the elastic element, and the pressing sheet, the gasket and the blocking sheet are provided with mounting holes the same as the elastic element; the electric brush mounting assembly can be connected with the elastic element through the mounting hole; the gasket and the elastic element are both positioned between the pressing sheet and the blocking sheet and are not overlapped; the thickness of the gasket is half of the thickness of the elastic element.
The invention has the following beneficial effects:
1. according to the brush assembly, the brush mounting assembly and the motor, the shock absorption unit is arranged, rigid shock absorption replaces elastic shock absorption through mutual matching of the arc-shaped toothed plate, the return spring and the screw rod, the defect of continuous shaking in the elastic shock absorption is overcome, the shock absorption effect on the oil-cooled motor body is realized through the elastic shock absorption, oil dripping from the oil-cooled motor body is accelerated, the subsequent oil cooling treatment effect on the motor is reduced, the treatment time of the oil on the oil-cooled motor body is prolonged, heat generated in the working process of the motor is timely dissipated, and the service life of the motor is prolonged.
2. According to the brush assembly, the brush mounting assembly and the motor, the oil entering the first channel is not only lubricated on the outer side of the arc-shaped toothed plate but also enters the arc-shaped toothed plate through the first hole by arranging the group of the first holes, so that the arc-shaped toothed plate is lubricated from inside to outside, meanwhile, the strength of the arc-shaped toothed plate is enhanced by filling the first holes and the communication positions with the oil, the service life of the arc-shaped toothed plate is prolonged, the damping time of the oil-cooled motor body is prolonged, the probability of dripping of the oil from the oil-cooled motor body is reduced, and the environmental adaptability of the motor is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a partial enlarged view at B in FIG. 4;
in the figure: the oil-cooled motor comprises an oil-cooled motor body 1, a motor shaft 2, a mounting seat 3, a damping unit 4, a mounting plate 41, a fixing block 42, a first chamber 421, a first channel 422, a second channel 423, a third channel 424, an arc toothed plate 43, an elastic toothed plate 431, a rigid toothed plate 432, a first hole 433, a screw 44, a sliding block 45, a push column 46, a bearing plate 5 and a rotating fan 6.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, the motor of the present invention includes an oil-cooled motor body 1, a motor shaft 2, a mounting base 3 and a damping unit 4; the motor shaft 2 is arranged at the end part of the oil-cooled motor body 1; the mounting seats 3 are symmetrically arranged along the oil-cooled motor body 1, one mounting seat 3 is mounted at the end part of the oil-cooled motor body 1 through a shaft, and the other mounting seat 3 is sleeved on the motor shaft 2 through a lantern ring; the damping unit 4 is installed on the lower end surface of the installation base 3, and the damping unit 4 comprises an installation plate 41, a fixed block 42, an arc toothed plate 43, a screw 44 and a sliding block 45; the mounting plate 41 is connected with the mounting base 3 through a pin; the fixed block 42 is provided with a first chamber 421 and a first channel 422; one end of the screw 44 is rotatably mounted on the lower end face of the mounting plate 41, and the other end of the screw passes through the first channel 422 and is located in the first chamber 421 and connected with the push column 46; the sliding blocks 45 are positioned on two sides of the screw 44, and the sliding blocks 45 are slidably mounted on the lower end surface of the mounting plate 41; the arc-shaped toothed plate 43 consists of a group of elastic toothed plates 431 and a rigid toothed plate 432, the two end parts of the arc-shaped toothed plate 43 are both the elastic toothed plates 431, one end of the arc-shaped toothed plate 43 is hinged on the sliding block 45, the other end of the arc-shaped toothed plate is positioned in the first passage 422, and the arc-shaped toothed plate 43 is meshed with the screw rod 44; a return spring is arranged in the first channel 422 at the end part of the arc toothed plate 43; rigid shock absorption of the oil cooling motor body 1 is realized through mutual matching of the arc toothed plate 43, the return spring and the screw 44; as one of the most common power sources, motors are used in various fields, such as: the mining of mineral substances in a mining area, because the mining depth of the mining area is deep and the ground of the mining area jolts unevenly in the mining area, a large amount of heat can be generated in the working process of a motor, the motor needs to be cooled, at the moment, the motor is cooled by adopting oil cooling, and oil cooling is selected, on one hand, the reduction of the heat in the working process of the motor can be realized, on the other hand, the oil cooling can avoid the generation of electric sparks, the explosion of the mining area caused by the electric sparks in the mining area environment is eliminated, in addition, when the oil cooling motor body 1 is damaged, oil can drip from the oil cooling motor body 1, the vibration of the oil cooling motor accelerates the dripping of the oil, the processing effect of the follow-up oil cooling on the motor is reduced, the damping unit 4 is arranged, the arc-shaped toothed plate 43, the reset spring and the screw 44 are matched with each other, and the elastic damping is replaced by rigid damping, the defect of continuous shaking in elastic shock absorption is eliminated, and although the elastic shock absorption realizes the shock absorption effect on the oil-cooled motor body 1, the oil can be accelerated to drip from the oil-cooled motor body 1, the subsequent oil cooling treatment effect on the motor is reduced, so that the treatment time of the oil on the oil-cooled motor body 1 is prolonged, the heat generated in the working process of the motor is timely dissipated, and the service life of the motor is prolonged; when the oil-cooled motor works, when the oil-cooled motor body 1 is slightly damaged and the motor does not shake, the probability that oil stored on the oil-cooled motor body 1 drips from the oil-cooled motor body 1 is reduced, but the motor can generate larger vibration during working due to the uneven jolt of the ground in a mining area, and at the moment, the arranged damping unit 4 plays a role in eliminating the vibration of the motor, so that the probability that the oil stored on the oil-cooled motor body 1 drips from the oil-cooled motor body 1 is reduced; when the oil-cooled motor body 1 moves to one side close to the fixed block 42, the arc-shaped toothed plate 43 moves to one side close to the inner wall of the first channel 422, the screw 44 rotates due to mutual meshing between the arc-shaped toothed plate 43 and the screw 44, meanwhile, due to the fact that the screw 44 rotates, the speed of the arc-shaped toothed plate 43 moving to one side close to the inner wall of the first channel 422 is reduced, the oil-cooled motor body 1 is prevented from instantly colliding to the fixed block 42, the arc-shaped toothed plate 43 is composed of a group of elastic toothed plates 431 and a group of rigid toothed plates 432, and the speed of the arc-shaped toothed plate 43 moving to one side close to the inner wall of the first channel 422 is further reduced; when arc pinion rack 43 pressure moves reset spring, arc pinion rack 43 is under reset spring's effect, make arc pinion rack 43 to keeping away from the lateral motion of a passageway 422 inner wall, arc pinion rack 43 and screw rod 44 cooperation, with oil-cooled motor body 1 jack-up, though, reset spring in the elastic shock attenuation has also been used, however, because the reset spring tip is not connected with arc pinion rack 43, reset spring only gives arc pinion rack 43 reverse acting force, and in reset spring lasts trembling, arc pinion rack 43 has broken away from reset spring, eliminated the drawback that the elastic shock attenuation leads to oil-cooled motor body 1 to last the shake, make the probability that oil drips from oil-cooled motor body 1 reduce, thereby both remain the oil-cooled effect of oil to oil-cooled motor body 1, the life of oil-cooled motor body 1 has been prolonged again.
As an embodiment of the present invention, the lower end of the oil-cooled motor body 1 is provided with a hollow receiving plate 5 made of an elastic material; the hollow inner wall of the bearing plate 5 is coated with a refrigerating working medium, one side surface of the bearing plate 5, which is close to the oil-cooled motor body 1, is provided with a concave groove, the middle part of the concave groove is provided with an inlet, the wall thickness of the hollow inner wall of the bearing plate 5, which is far away from the inlet, is gradually thinned from the middle part to two sides, and the bearing plate 5 is respectively communicated with the first chamber 421 through a pipeline; when the oil-cooled motor body 1 is slightly damaged, although the probability that oil drips from the oil-cooled motor body 1 due to shaking of the oil-cooled motor body 1 is eliminated through rigid shock absorption, the oil still has the possibility of dripping from the oil-cooled motor body 1, when the oil drips from the oil-cooled motor body 1, the oil drips on the receiving plate 5, because the concave groove is formed on one side, close to the oil-cooled motor body 1, of the receiving plate 5, the dripped oil flows to the middle part of the receiving plate 5 and enters the hollow part of the receiving plate 5 through the inlet, the refrigeration working medium is coated, because the temperature of the oil is increased when the oil is subjected to oil cooling treatment on the oil-cooled motor body 1, the refrigeration working medium cools the oil entering the hollow part of the receiving plate 5, the wall thickness of the hollow inner wall of the receiving plate 5 far away from the inlet is gradually reduced from the middle part to two sides, and the cooled oil can conveniently enter the first chamber 421 for storage, is favorable for secondary utilization of oil.
As an embodiment of the present invention, the wall thickness of the hollow inner wall of the adapting plate 5 near the inlet side gradually increases from the middle part to both sides; when more oil drips from the oil-cooled motor body 1 and the concave groove formed in the bearing plate 5 cannot bear excessive oil, the wall thickness of the hollow inner wall of the bearing plate 5 close to one side of the inlet is gradually increased from the middle to two sides, so that the bearing plate 5 moves towards one side far away from the oil-cooled motor body 1 under the action of the gravity of the accumulated oil, the depth of the concave groove is increased, the concave groove can bear more dripped oil, and the dripped oil is prevented from dripping onto the ground over the concave groove and is not beneficial to secondary utilization of the oil; simultaneously, because the concave groove is to keeping away from the one side motion of oil-cooled motor body 1 for be close to the size grow of the open end of oil-cooled motor body 1 one side, the oil that the concave groove was accepted enters into and accepts 5 hollows, has further avoided oil to drip subaerially, thereby has further realized the reutilization to oil.
As an embodiment of the present invention, the push column 46 is composed of a cylinder and a circular truncated cone, and a rotating fan 6 is sleeved on an outer ring of the screw 44 located above the push column 46 in the first chamber 421, and the rotating fan 6 rotates to accelerate oil in the hollow bearing plate 5 to be pumped into the first chamber 421; when arc pinion rack 43 cooperation screw rod 44 rotates for rotating fan 6 and having accelerated the oil of accepting the cavity of board 5 and entered into cavity 421 in, make oil store in cavity 421, slowed down the concave groove and accepted the degree of difficulty that the cavity of board 5 accepted oil, even make oil drip too fast, oil also can be by abundant accepting, further realizes the reutilization to oil.
As an embodiment of the present invention, the fixing block 42 is symmetrically provided with a second channel 423 and a third channel 424 along the pushing column 46; both ends of the second channel 423 are communicated with the first chamber 421, and in an initial state, one end of the second channel 423 is blocked by the push column 46; one end of the third channel 424 is communicated with the first cavity 421, the other end of the third channel 424 is communicated with the first channel 422, and oil in the first cavity 421 is pressed into the first channel 422 through the third channel 424 by the push column 46, so that the arc toothed plate 43 is lubricated; when the oil in the hollow part of the receiving plate 5 is pumped into the first chamber 421 under the action of the rotating fan 6, the oil is in the first chamber 421 above the push column 46, when the push column 46 moves towards one side close to the bottom of the first chamber 421, the push column 46 loses the blocking effect on the second channel 423, so that the oil stored in the first chamber 421 above the push column 46 enters the first chamber 421 below the push column 46 through the second channel 423, and as the push column 46 continues to move towards one side close to the bottom of the first chamber 421, the push column 46 presses the oil into the first channel 422 through the third channel 424 again, so as to lubricate the arc toothed plate 43 and the screw 44, prevent the arc toothed plate 43 and the screw 44 from generating a blocking phenomenon due to continuous operation, prolong the working time of the arc toothed plate 43 and the screw 44, thereby eliminating the shaking amplitude of the oil-cooled motor body 1, and further reducing the possibility of dripping of the oil from the oil-cooled motor body 1, thereby improving the environmental suitability of the motor.
As an embodiment of the present invention, each of the elastic toothed plates 431 and each of the rigid toothed plates 432 are uniformly provided with a group of first holes 433, and adjacent first holes 433 along the arc-shaped surface of the arc-shaped toothed plate 43 and close to the side wall of the first channel 422 are communicated with each other; through setting up a set of hole 433, make the oil that enters into in a passageway 422 not only lubricate it in the outside of arc pinion rack 43, but enter into the inside of arc pinion rack 43 through a hole 433, from interior to the lubrication of realizing arc pinion rack 43 outward, and simultaneously, will follow arc pinion rack 43 arcwall face and be close to a adjacent hole 433 of passageway 422 lateral wall and communicate each other between, fill a hole 433 and intercommunication department through oil, the intensity of arc pinion rack 43 has been strengthened, the life of arc pinion rack 43 has been prolonged, make arc pinion rack 43 more of a specified duration cooperate with screw rod 44, realize the shock attenuation to oil-cooled motor body 1, reduce the probability that oil drips from oil-cooled motor body 1, thereby the environmental suitability of this motor has been improved.
As an embodiment of the invention, the cooling oil in the oil-cooled motor body 1 is selected from vegetable insulating oil; when the plant insulating oil is selected, the strong hydrophilicity of the plant insulating oil does not influence the good insulating property of the plant insulating oil, and can inhibit the aging of insulating paper in the transformer; therefore, the strong hydrophilicity and the large saturated water content of the vegetable insulating oil are just the advantages of the vegetable insulating oil, because the contained hydrophilic groups can absorb a part of water from the insulating paper, reduce the aging degradation speed of the insulating paper and prolong the service life of the insulating paper and the transformer.
As an embodiment of the invention, the stator core in the oil-cooled motor body 1 is formed by laminating silicon steel sheets with the thickness of 0.36-0.55 mm and annular punched sheet grooves with insulating paint coated on the surfaces; through selecting stator core 0.36mm-0.55mm thick to form through folding, make the heat that every iron core piece produced, the homoenergetic distributes from folding the clearance, and simultaneously, the coating has insulating paint, has further strengthened stator core's insulating nature, the going on of the follow-up work of being convenient for.
A brush component is suitable for the motor and comprises a brush made of graphite materials, the brush is arranged on an elastic element through a brush mounting component, and the brush element comprises a connecting part and brush mounting parts positioned on two sides of the connecting part; the connecting part is used for connecting the electric brush frame.
A brush mounting assembly for mounting the brush assembly includes a press plate, a spacer and a catch; the sectional shapes of the pressing sheet, the gasket and the blocking sheet are the same as the sectional shape of the elastic element, and the pressing sheet, the gasket and the blocking sheet are provided with mounting holes the same as the elastic element; the electric brush mounting assembly can be connected with the elastic element through the mounting hole; the gasket and the elastic element are both positioned between the pressing sheet and the blocking sheet and are not overlapped; the thickness of the gasket is half of the thickness of the elastic element.
When the oil-cooled motor works, when the oil-cooled motor body 1 is slightly damaged and the motor does not shake, the probability that oil stored on the oil-cooled motor body 1 drips from the oil-cooled motor body 1 is reduced, but the motor can generate larger vibration during working due to the uneven jolt of the ground in a mining area, and at the moment, the arranged damping unit 4 plays a role in eliminating the vibration of the motor, so that the probability that the oil stored on the oil-cooled motor body 1 drips from the oil-cooled motor body 1 is reduced; when the oil-cooled motor body 1 moves to one side close to the fixed block 42, the arc-shaped toothed plate 43 moves to one side close to the inner wall of the first channel 422, the screw 44 rotates due to mutual meshing between the arc-shaped toothed plate 43 and the screw 44, meanwhile, due to the fact that the screw 44 rotates, the speed of the arc-shaped toothed plate 43 moving to one side close to the inner wall of the first channel 422 is reduced, the oil-cooled motor body 1 is prevented from instantly colliding to the fixed block 42, the arc-shaped toothed plate 43 is composed of a group of elastic toothed plates 431 and a group of rigid toothed plates 432, and the speed of the arc-shaped toothed plate 43 moving to one side close to the inner wall of the first channel 422 is further reduced; when the arc-shaped toothed plate 43 presses the return spring, the arc-shaped toothed plate 43 moves towards one side far away from the inner wall of the first passage 422 under the action of the return spring, and the arc-shaped toothed plate 43 is matched with the screw 44 to jack up the oil-cooled motor body 1; when more oil drips from the oil-cooled motor body 1, the concave groove formed in the bearing plate 5 bears the oil and enters the hollow part of the bearing plate 5, so that the oil enters the first chamber 421, and the rotation of the rotating fan 6 accelerates the oil at the hollow part of the bearing plate 5 to enter the first chamber 421; simultaneously, oil in the cavity 421 enters into a passageway 422, realizes the lubrication of arc pinion rack 43 and screw rod 44, has further prolonged the cushioning effect of arc pinion rack 43 and screw rod 44 cooperation to oil-cooled motor body 1, further eliminates oil from dripping on oil-cooled motor body 1 to the environmental suitability of this motor has been improved.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (11)
1. An electric machine characterized by: the oil-cooled motor comprises an oil-cooled motor body (1), a motor shaft (2), a mounting seat (3) and a damping unit (4); the motor shaft (2) is arranged at the end part of the oil-cooled motor body (1); the mounting seats (3) are symmetrically arranged along the oil-cooled motor body (1), one mounting seat (3) is mounted at the end part of the oil-cooled motor body (1) through a shaft, and the other mounting seat (3) is sleeved on the motor shaft (2) through a lantern ring; the damping unit (4) is installed on the lower end face of the installation base (3), and the damping unit (4) comprises an installation plate (41), a fixed block (42), an arc toothed plate (43), a screw rod (44) and a sliding block (45); the mounting plate (41) is connected with the mounting base (3) through a pin; a first cavity (421) and a first channel (422) are formed in the fixing block (42); one end of the screw rod (44) is rotatably arranged on the lower end face of the mounting plate (41), and the other end of the screw rod passes through the first channel (422), is positioned in the first cavity (421) and is connected with the push column (46); the sliding blocks (45) are positioned on two sides of the screw rod (44), and the sliding blocks (45) are slidably mounted on the lower end face of the mounting plate (41); the arc toothed plate (43) consists of a group of elastic toothed plates (431) and a rigid toothed plate (432), the two end parts of the arc toothed plate (43) are both the elastic toothed plates (431), one end of the arc toothed plate (43) is hinged to the sliding block (45), the other end of the arc toothed plate is positioned in the first channel (422), and the arc toothed plate (43) is meshed with the screw rod (44); a return spring is arranged in a first channel (422) at the end part of the arc toothed plate (43); through the mutual cooperation between arc pinion rack (43), reset spring and screw rod (44), realize the rigidity shock attenuation to oil-cooled motor body (1).
2. An electric machine as claimed in claim 1, characterized in that: the lower end of the oil-cooled motor body (1) is provided with a hollow bearing plate (5) made of elastic material; the cooling material is coated on the hollow inner wall of the bearing plate (5), a concave groove is formed in one side face, close to the oil-cooled motor body (1), of the bearing plate (5), an inlet is formed in the middle of the concave groove, the wall thickness of the hollow inner wall of the bearing plate (5) far away from the inlet is gradually reduced from the middle to two sides, and the bearing plate (5) is communicated with the first cavity (421) through a pipeline.
3. An electrical machine according to claim 2, wherein: the wall thickness of the hollow inner wall of the bearing plate (5) close to one side of the inlet is gradually thickened from the middle part to two sides.
4. A machine as claimed in claim 3, characterized in that: the push column (46) comprises cylinder and round platform, and is located screw rod (44) outer lane of push column (46) top in cavity (421) and is equipped with rotation fan (6) on the cover, rotates through rotation fan (6) and accelerates to carry hollow board (5) interior oil pump to cavity (421) in.
5. An electrical machine according to claim 4, wherein: the fixed block (42) is symmetrically provided with a second channel (423) and a third channel (424) along the push column (46); both ends of the second channel (423) are communicated with the first chamber (421), and in an initial state, one end of the second channel (423) is blocked by the push column (46); no. three passageway (424) one end and a cavity (421) intercommunication, the other end and a passageway (422) intercommunication, through push column (46) with the oil in a cavity (421) impress in a passageway (422) through No. three passageway (424), realize the lubrication to arc pinion rack (43).
6. An electric machine as claimed in claim 5, characterized in that: every elasticity pinion rack (431) and every evenly seted up a set of hole (433) No. one on rigid tooth plate (432), and communicate each other between adjacent hole (433) along arc pinion rack (43) arcwall face and near a passageway (422) lateral wall.
7. An electrical machine according to claim 6, wherein: the cooling oil in the oil-cooled motor body (1) is vegetable insulating oil.
8. An electric machine as claimed in claim 7, characterized in that: the stator core in the oil-cooled motor body (1) is formed by laminating silicon steel sheets of annular sheet punching grooves with the thickness of 0.36-0.55 mm and the surfaces coated with insulating paint.
9. A brush assembly, comprising: the brush assembly is suitable for the motor of any one of claims 1 to 8, and comprises a brush made of graphite material, the brush is mounted on the elastic element through a brush mounting assembly, and the brush element comprises a connecting part and brush mounting parts positioned at two sides of the connecting part; the connecting part is used for connecting the electric brush frame.
10. A brush mounting assembly, characterized by: the brush mounting assembly for mounting the brush assembly of claim 9, the brush mounting assembly comprising a press tab, a spacer, and a catch; the sectional shapes of the pressing sheet, the gasket and the blocking sheet are the same as the sectional shape of the elastic element, and the pressing sheet, the gasket and the blocking sheet are provided with mounting holes the same as the elastic element; the electric brush mounting assembly can be connected with the elastic element through the mounting hole; the gasket and the elastic element are both positioned between the pressing sheet and the blocking sheet and are not overlapped.
11. A brush mounting assembly according to claim 10, wherein: the thickness of the gasket is half of the thickness of the elastic element.
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| CN202010990141.8A CN112202272B (en) | 2020-09-18 | 2020-09-18 | Electric machine |
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| CN202010990141.8A CN112202272B (en) | 2020-09-18 | 2020-09-18 | Electric machine |
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| CN112202272B CN112202272B (en) | 2021-11-23 |
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| CN111256934A (en) * | 2020-03-31 | 2020-06-09 | 中国航发动力股份有限公司 | Turbine blade vibration test tool and turbine blade clamping method |
| CN211183614U (en) * | 2019-12-29 | 2020-08-04 | 日电产伺服电机（常州）有限公司 | Protective structure of motor |
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| EP0497259A1 (en) * | 1991-01-30 | 1992-08-05 | Honeywell Inc. | Vibration absorbing damper |
| CN107681842A (en) * | 2017-11-21 | 2018-02-09 | 默拓（苏州）机电科技有限公司 | A kind of brushed DC motor |
| CN109301971A (en) * | 2018-11-12 | 2019-02-01 | 安徽工业大学 | A kind of carbon brush connects power supply machine and its carbon brush replacing options |
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| CN111256934A (en) * | 2020-03-31 | 2020-06-09 | 中国航发动力股份有限公司 | Turbine blade vibration test tool and turbine blade clamping method |
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| CN112202272B (en) | 2021-11-23 |
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Effective date of registration: 20211101 Address after: 200000 room 306, building 3, No. 336, Tianjiao Road, Lingang New Area, pilot Free Trade Zone, Pudong New Area, Shanghai Applicant after: Shanghai songchen Power Technology Co.,Ltd. Address before: 230000 Room 301, building 13, xintangjiayuan, intersection of West 2nd Ring Road and Wangjiang West Road, high tech Zone, Hefei City, Anhui Province Applicant before: Cao Rui |
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Address after: No. 2-25-1, No. 8, 10, 20, 22, 30, 32, 34, Yangfan Square, High tech Zone, Ningbo City, Zhejiang Province, 315000 Patentee after: Ningbo Songchen Power Technology Co.,Ltd. Address before: 200000 room 306, building 3, No. 336, Tianjiao Road, Lingang New Area, pilot Free Trade Zone, Pudong New Area, Shanghai Patentee before: Shanghai songchen Power Technology Co.,Ltd. |
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