CN116231966A - Motor structure on sander - Google Patents
Motor structure on sander Download PDFInfo
- Publication number
- CN116231966A CN116231966A CN202310129407.3A CN202310129407A CN116231966A CN 116231966 A CN116231966 A CN 116231966A CN 202310129407 A CN202310129407 A CN 202310129407A CN 116231966 A CN116231966 A CN 116231966A
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- weak magnetic
- magnetic block
- block
- cleaning
- end plate
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- 238000004140 cleaning Methods 0.000 claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 244000137852 Petrea volubilis Species 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0092—Grinding attachments for lathes or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a motor structure on a sander, which comprises a sander body, a rotor, a stator, a fan fixed on the rotor, and a weak magnetic assembly, wherein the weak magnetic assembly comprises a first weak magnetic block and a second weak magnetic block, and the second weak magnetic block is separated from the first weak magnetic block when the weak magnetic assembly reaches a specific temperature; the water cooling assembly is arranged in the sander and connected with the stator, and comprises a circulating pump and a circulating water pipe, wherein the circulating water pipe is arranged in the stator, and the circulating pump is started to enable water in the circulating water pipe to start flowing; the triggering device is matched with the weak magnetic assembly after being heated, and the triggering device provides electric energy for the water cooling assembly; the expansion piece comprises a first expansion piece and a second expansion piece, the first expansion piece is matched with the locking device, the locking device locks the separated second weak magnetic block, the first expansion piece controls the matching state of the locking device and the second weak magnetic block, the second expansion piece is matched with the cleaning device, and the cleaning device cleans the fan for many times. When the temperature is too high, the water cooling assembly can be started automatically to radiate heat of the motor to keep the motor in a reasonable temperature range, and the cleaning device can be started to clean the fan for the first time when the water cooling assembly is started automatically, and the machine is cleaned for the second time after being closed.
Description
Technical Field
The invention relates to the field of electric tools, in particular to a motor structure on a sander.
Background
Currently, sanders are widely used for sanding walls, floors, or various workpieces. Sanding machines typically have a motor that provides the driving force, which is connected to a power transmission system and is located within the housing of the sanding machine. The sander is also provided with a working chassis, the power transmission system further comprises an eccentric device, the motor is connected with the working chassis through the power transmission system, and sanding materials such as sand paper and the like are attached to the bottom surface of the working chassis. When the polishing machine works, the motor drives the bottom disc to axially rotate around the shaft, and the attached sand paper correspondingly rotates to polish the surface of a workpiece to be polished, so that the workpiece is smooth and flat.
When the sander polishes, the time of polishing can be longer generally, under long-time work, the heat that the motor in the sander produced can rise gradually, just by setting up the fan in the sander and can't guarantee normal heat dissipation this moment, can take place the overload of motor and lead to the sander to destroy under lasting work, can lead to adhering to on the fan in the sander under long-time work simultaneously to have dust, the clearance can not in time influence normal work.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a motor structure on a sander, which can effectively solve the problems of the traditional sander.
The technical scheme adopted for solving the technical problems is as follows: the motor structure on the sander comprises a sander body, a rotor, a stator, a fan fixed on the rotor, and a weak magnetic assembly, wherein the weak magnetic assembly comprises a first weak magnetic block and a second weak magnetic block, and the second weak magnetic block is separated from the first weak magnetic block when the weak magnetic assembly reaches a specific temperature; the water cooling assembly is arranged in the sander and connected with the stator, and comprises a circulating pump and a circulating water pipe, wherein the circulating water pipe is arranged in the stator, and the circulating pump is started to enable water in the circulating water pipe to start flowing; the triggering device is matched with the weak magnetic assembly after being heated and provides electric energy for the water cooling assembly; the expansion piece comprises a first expansion piece and a second expansion piece, the first expansion piece is matched with the locking device, the locking device locks the second weak magnetic block after being separated, the first expansion piece controls the matching state of the locking device and the second weak magnetic block, the second expansion piece is matched with the cleaning device, and the cleaning device is used for cleaning the fan for a plurality of times.
In the above technical scheme, further, the first weak magnetic block is fixedly arranged above the second weak magnetic block, the second weak magnetic block is adsorbed below the first weak magnetic block and is provided with the balancing weight, and when the first weak magnetic block and the second weak magnetic block are subjected to the temperature a, the second weak magnetic block is separated from the first weak magnetic block and falls off.
In the above technical scheme, further, trigger device is including setting up sloping block on the second weak magnetic block and being located the ejector pad under the second weak magnetic block, be provided with the metal bar on the ejector pad and be provided with the fixed plate on one side of the ejector pad, be provided with first spring between the fixed plate with the ejector pad, still including setting up the U-shaped strong magnetic block of fan side, be provided with the wire on the metal bar and be connected to water-cooling module, the metal bar under the initial position can not get into in the U-shaped breach of U-shaped strong magnetic block, the ejector pad receives behind the sloping block extrusion make the metal bar get into in the U-shaped breach of U-shaped strong magnetic block, the U-shaped strong magnetic block follows the fan rotates and constantly passes through the metal bar.
In the above technical solution, further, the higher the temperature of the first expansion member and the second expansion member, the larger the expansion coefficient of the first expansion member and the second expansion member, when the temperature reaches b, the first expansion member and the second expansion member reach the maximum expansion degree, the temperature b is lower than the temperature a, the first expansion member controls the locking device to move to the locking position, and the second expansion member controls the cleaning device to clean the fan for the first time.
In the above technical solution, further, the locking device includes a first rack disposed on a side surface of the second weak magnetic block and a first gear engaged with the first rack and located below the second weak magnetic block, the first gear is disposed at one end of the first gear post and engaged with the first gear post through a one-way bearing, the other end of the first gear post is disposed in the first movable cavity, the first expansion member is also disposed in the first movable cavity and keeps the first expansion member in an initial state in contact with the first gear post, a first bump is disposed on a side surface of the first gear post and a first chute for placing the first bump is disposed on an inner wall of the first movable cavity, a second spring for resetting the first gear post is disposed in the first chute, and the first expansion member is thermally deformed so as to move the first bump on the first gear post in the first chute, and then the first gear is moved from the initial position to the locking position.
In the above technical scheme, further, the second expansion piece sets up in the second activity intracavity, be provided with the movable block in the second activity intracavity, the second expansion piece is located one side of movable block the movable block reaches be provided with matched with second lug and second spout in the second activity intracavity, be provided with in the second spout and be used for the third spring that the movable block reset, the movable block opposite side pass through the pipeline with cleaning device connects.
In the above technical scheme, further, the cleaning device is located below the fan, the cleaning device sequentially comprises a cleaning disc and a fixed disc from top to bottom, a driving rod, a plurality of groups of movable cleaning brush assemblies are arranged on the cleaning disc, each cleaning brush assembly comprises a first end plate and a second end plate, the first end plate and the second end plate are connected through a strip-shaped seat, a movable cleaning brush is arranged on the strip-shaped seat, in an initial state, the cleaning brush is contacted with the first end plate, a fourth spring is arranged between the cleaning brush and the second end plate, a common bearing is arranged at the center of the cleaning disc, an outer ring of the common bearing is fixed with the cleaning disc, a cylinder synchronously rotating with the inner ring is arranged on the upper part of the inner ring, a pull rope is arranged on the cleaning brush, the pull rope penetrates through the second end plate and is connected to the cylinder, a fixed column is arranged between the cleaning disc and the fixed disc, a first bevel gear which rotates synchronously with the inner ring is arranged at the lower part of the inner ring, a fixed block is arranged on the fixed disc, a second gear column transversely penetrates through the fixed block, a second bevel gear meshed with the first bevel gear is arranged at one end of the second gear column, a second gear is arranged at the other end of the second gear column, a second rack which is longitudinally arranged in the sander body and meshed with the second gear is arranged in the sander body, a driving rod is arranged below the fixed disc and comprises a first driving rod and a second driving rod which is movably arranged on the first driving rod, the second driving rod is connected with the fixed disc, a boss is arranged in the first driving rod, the second driving rod is arranged on the boss, a cavity is arranged below the boss, the pipeline is connected to the first driving rod, the pipeline is connected with the cavity in the first driving rod, and the second expansion piece extrudes the moving block to enable the second driving rod to move upwards on the first driving rod.
In the above technical scheme, further, the width of the cleaning brush is smaller than the length of the fan blade, and the length of the brush hair of the cleaning brush is larger than the height of the fan blade.
The beneficial effects of the invention are as follows: when the temperature is too high, the water cooling assembly can be started automatically to radiate heat of the motor to keep the motor in a reasonable temperature range, and the cleaning device can be started to clean the fan for the first time when the water cooling assembly is started automatically, and the machine is cleaned for the second time after being closed.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is an internal structural view of the present invention.
Fig. 2 is a view showing the initial state of the locking device of the present invention and the first expansion member.
Fig. 3 is a view showing the locking device of the present invention mated with the first expansion member in its adjusted state.
Fig. 4 is an initial state engagement diagram of the driving rod and the second expansion member of the present invention.
Fig. 5 is a view showing the adjustment state of the driving rod and the second expansion member according to the present invention.
FIG. 6 is a schematic illustration of the cleaning apparatus and fan assembly of the present invention.
Fig. 7 is a top view of the cleaning apparatus of the present invention in an initial state.
Fig. 8 is a top view of the conditioning state of the cleaning apparatus of the present invention.
In the drawings, 1 a sander body, 2 a rotor, 3 a stator, 4 a fan, 5 a first flux weakening block, 6 a second flux weakening block, 7 a circulating pump, 8 a circulating water pipe, 9 a first expansion piece, 10 a second expansion piece, 11 a balancing weight, 12 a inclined block, 13 a pushing block, 14 a metal rod, 15 a fixed plate, 16 a first spring, 17 a U-shaped strong magnetic block, 18 a first rack, 19 a first gear, 20 a first gear post, 21 a one-way bearing, 22 a first movable cavity, 23 a first lug, 24 a first sliding groove, 25 a second spring, 26 a movable block, 27 a second lug, 28 a second sliding groove, 29 a third spring, 30 a pipeline, 31 a second movable cavity, 31 a cleaning device, 3201 a cleaning disc, 3202 a fixed disc, 3203 a first driving rod, 3204 a second driving rod, 3205 a first end plate, 3206 a second end plate, 7 a second end plate, 8 a second gear, 8 a second pulley, 3210 a third spring, 3210 a second pulley, 3210.
Description of the embodiments
Referring to fig. 1-8, a motor structure on a sander comprises a sander body 1, a rotor 2, a stator 3, a fan 4 fixed on the rotor 2, and a weak magnetic assembly, wherein the weak magnetic assembly comprises a first weak magnetic block 5 and a second weak magnetic block 6, and the second weak magnetic block 6 is separated from the first weak magnetic block 5 when the weak magnetic assembly reaches a specific temperature; the water cooling assembly is arranged in the sander and connected with the stator 3 and comprises a circulating pump 7 and a circulating water pipe 8, the circulating water pipe 8 is arranged in the stator 3, and the circulating pump 7 is started to enable water in the circulating water pipe 8 to start flowing; the triggering device is matched with the weak magnetic assembly after being heated and provides electric energy for the water cooling assembly; the expansion piece comprises a first expansion piece 9 and a second expansion piece 10, the first expansion piece 9 is matched with a locking device, the locking device locks the separated second weak magnetic blocks 6, the first expansion piece 9 controls the matching state of the locking device and the second weak magnetic blocks 6, the second expansion piece 10 is matched with a cleaning device 31, and the cleaning device 31 cleans the fan 4 for a plurality of times.
The first weak magnetic block 5 arranged in the square sand machine body is fixed in the square sand machine body, the second weak magnetic block 6 is adsorbed below the first weak magnetic block 5, in order to ensure that the second weak magnetic block can generate larger extrusion force when falling, the situation that the second weak magnetic block cannot be matched with the triggering device is prevented, the second weak magnetic block 6 is provided with the balancing weight 11, because the magnetism of the first weak magnetic block 5 and the second weak magnetic block 6 is weak, when the temperature in the square sand machine body rises, the adsorption force between the first weak magnetic block 5 and the second weak magnetic block 6 is reduced, so that the second weak magnetic block 6 can fall from the first weak magnetic block 5, the second weak magnetic block 6 is guided by the ribs and prevented from completely falling when the temperature of the square sand machine body reaches a, and the second weak magnetic block 6 is separated from the first weak magnetic block 5.
The triggering device is arranged below the second weak magnetic block 6, an inclined block 12 is arranged on the second weak magnetic block 6 and positioned below the second weak magnetic block 6, meanwhile, the triggering device is arranged right below the inclined block 12 of the second weak magnetic block 6 and comprises a push block 13, the push block 13 is positioned below the inclined block 12, the inclined surface of the inclined block 12 is aligned with the upper inclined edge of the right side of the push block 13, when the inclined block 12 moves downwards and contacts with the push block 13, the push block 13 moves leftwards, a metal rod 14 is arranged on the left side of the push block 13, a wire is arranged on the metal rod 14 and connected with the circulating pump 7 on the water cooling assembly, when the circulating pump 7 is electrified, water in the circulating water pipe 8 is started to circulate, in order to ensure that the inclined block 12 can reset the push block 13 when being separated from the push block 13, the left side of the push block 13 is also provided with a fixed plate 15, a first spring 16 is arranged between the fixed plate 15 and the push block 13, when the push block 13 moves leftwards, the metal rod 14 moves towards the fan 4 at the same time, the side surface of the fan 4 is fixedly provided with a U-shaped strong magnetic block with a transverse opening towards the outer side, the U-shaped strong magnetic block is strong in magnetism, the U-shaped strong magnetic block cannot be excessively demagnetized even under the temperature of the square sander body, the characteristics of the magnet can be largely reserved, when the push block 13 does not move, the U-shaped magnetic block rotates along with the fan 4, the metal rod 14 cannot enter into a U-shaped notch of the U-shaped strong magnetic block, when the push block 13 is pressed and moved, the metal rod 14 enters into the U-shaped notch of the U-shaped strong magnetic block, so that the metal bar 14 is in continuous contact with the U-shaped strong magnetic blocks, and the generated current is continuously input into the circulating pump 7 through a lead.
The first expansion member 9 and the second expansion member 10 are expansion balls, heated and expanded gas is arranged in the expansion balls, the higher the temperature to which the first expansion member 9 and the second expansion member 10 are subjected, the larger the expansion rate is, but the expansion cannot be limited due to the elasticity of an external sphere, when the temperature reaches b, the first expansion member 9 and the second expansion member 10 reach the maximum expansion degree, the temperature b is lower than the temperature a, so that the first expansion member 9 and the second expansion member 10 are firstly expanded, then the second weak magnetic block 6 falls off from the first weak magnetic block 5, the first expansion member 9 controls the locking device to move to the locking position, and the locking device is arranged to prevent the second weak magnetic block 6 from shaking when the sander body 1 works, when the second weak magnetic block 6 falls off, the second weak magnetic block 6 is locked, and the second expansion member 10 controls the cleaning device 31 to primarily clean the fan 4 when started.
The locking device comprises a first rack 18 arranged on the second weak magnetic block 6 and positioned at the left side, a first gear 19 positioned on the falling track of the second weak magnetic block 6 and matched with the first rack 18, wherein the first gear 19 is arranged at the left side end of a first gear column 20, the first gear 19 is connected with the first gear column 20 through a one-way bearing 21, the first gear 19 is guaranteed to rotate unidirectionally, and when the second weak magnetic block 6 falls, the first rack 18 drives the first gear 19 to rotate clockwise and after the second weak magnetic block 6 falls completely, the first gear 19 in an engaged state cannot rotate.
The right end of the first gear column 20 is embedded into the first movable cavity 22, the first expansion piece 9 is arranged on the right side of the first movable cavity 22, in order to prevent the first gear column 20 from being separated from the first movable cavity 22, a first protruding block 23 is arranged on the first gear column 20, a first sliding groove 24 is arranged at the upper end and the lower end in the first movable cavity 22, the first protruding block 23 is embedded into the first sliding groove 24, meanwhile, a second spring 25 is further arranged in the first sliding groove 24 and used for guaranteeing that the first gear column can return, the first gear column 20 is limited to move transversely and cannot rotate, the first gear 19 is rotatably arranged on the first gear column 20, when the first expansion piece 9 is heated to be large, the first gear column 20 is extruded to move towards the side of the second spring 25, the first gear 19 and the first rack 18 are guaranteed to be meshed, and when the first expansion piece 9 is reduced, the second spring 25 enables the first protruding block 23 to be in the first sliding groove 24.
The second expansion member 10 is disposed on the left side of the second movable cavity 31, a moving block 26 is disposed in the second movable cavity 31, the moving block 26 has a sealing function in the second movable cavity 31, a second protruding block 27 and a second sliding groove 28 which are matched with each other are disposed on the moving block 26 and the second movable cavity 31, a third spring 29 is disposed to ensure resetting of the moving block 26, and a pipeline 30 is disposed on the left side of the second movable cavity 31 and connected with the cleaning device 31.
When the operation is stopped, the square sand machine does not generate heat, through natural cooling, the temperature in the square sand machine reaches a firstly and then reaches b, when the temperature a is reached, the magnetism between the second weak magnetic block 6 and the first weak magnetic block 5 is recovered, but the second weak magnetic block 6 is limited by the first gear 19 and cannot be adsorbed, when the temperature b is reached, the first expansion piece 9 and the second expansion piece 10 start to shrink, the first gear column 20 returns, and the second weak magnetic block 6 is simultaneously adsorbed on the first weak magnetic block 5.
The fan 4 comprises an upper blade and a lower blade, the upper blade is used for radiating heat, the lower blade is used for guiding dust, so the cleaning device 31 is arranged below the fan 4, the cleaning device 31 comprises three layers, namely a cleaning disc 3201, a fixed disc 3202 and a driving rod, four fixed columns 3213 are arranged between the fixed disc 3202 and the cleaning disc 3201 from top to bottom, a cleaning brush 3208 assembly is arranged on the surface of the cleaning disc 3201, the cleaning brush 3208 assembly comprises a first end plate 3205 arranged at the edge of the cleaning disc 3201 and a second end plate 3206 arranged in the cleaning disc 3201 and parallel to the first end plate 3205, the first end plate 3205 and the second end plate 3206 are connected through a strip-shaped seat 3207, the height of the strip-shaped seat 3207 is lower than that of the first end plate 3205 and the second end plate 3206 on the strip-shaped seat 3207 are provided with cleaning brushes 3208 which can slide on the strip-shaped seat 3207, in the initial state, the cleaning brush 3208 is attached to the first end plate 3205, a fourth spring 3209 is disposed between the cleaning brush 3208 and the second end plate 3206, a common bearing 3210 is disposed at the center of the cleaning disc 3201, an outer ring on the common bearing 3210 is fixed to the cleaning disc 3201, a cylinder 3211 is disposed on the inner ring and above the cleaning disc 3201, a pull rope 3212 is disposed on the first end plate 3205, the pull rope 3212 passes through the second end plate 3206 (guiding function) and is connected to the cylinder 3211, a first bevel gear 3214 is disposed on the inner ring and below the cleaning disc 3201, the center of the first bevel gear 3214 is in a penetrating state, a fixed block 3215 is disposed on the fixed disc 3202, a rotatable second gear post 3216 (a configurable bearing) is transversely penetrated on the fixed block 3215, the left end of the second gear pole 3216 is provided with a second bevel gear 3217 meshed with the first bevel gear 3214, the right end of the second gear pole 3216 is provided with a second gear 3218, meanwhile, a second rack 3219 which is vertically installed and meshed with the second gear 3218 is arranged in the square sanding machine body, the driving rod comprises a first driving rod 3203 and a second driving rod 3204 movably arranged on the first driving rod 3203, the top end of the second driving rod 3204 is connected with the fixed disc 3202, meanwhile, a cavity 3221 is arranged in the first driving rod 3203, a boss 3220 is arranged at the position, which is located at the middle part of the cavity 3221 in the first driving rod 3203, the second driving rod 3204 is placed on the boss 3220, the driving rod 30 is connected into the cavity 3221 in the first driving rod 3203, hydraulic oil can enter the cavity 3221 and the driving rod 30, the second driving rod 3214 can be driven by the second bevel gear 3214 to move in the same direction, and the second gear 3218 can be driven by the second driving rod 3218 to roll up to the second bevel gear 3214, and the second end plate 3218 can be driven by the second bevel gear 3218 to move synchronously.
The width of the cleaning brush 3208 is smaller than the blade length of the fan 4, and the bristle length of the cleaning brush 3208 is greater than the blade height of the fan 4.
The working process of the invention comprises the following steps: under normal operation, the temperature in the sander body 1 can be controlled only through air cooling, along with the increase of the service time, the temperature in the sander body 1 rises, when the temperature b is reached, the first expansion piece 9 and the second expansion piece 10 expand, the first expansion piece 9 extrudes the first gear 19 to reach the locking position, the second expansion piece 10 drives the cleaning disc 3201 and the cleaning brush 3208 to move upwards and move towards the direction of the second end plate 3206, because the fan 4 is in a rotating state, the fan blade groove of the fan 4 can be cleaned once through upward movement and inward movement, when the temperature a is reached, the second weak magnetic block 6 falls to trigger the metal rod 14 to be matched with the U-shaped strong magnetic block, so that the circulating pump 7 works, water cooling is carried out, the temperature is kept at the temperature a (the sander body 1 continuously works to generate heat), after the work is completed, the temperature reaches a first time, the second weak magnetic block 6 is limited by the one-way bearing 21 to move upwards and moves towards the direction of the second end plate 3206, the temperature a can not reach the first weak magnetic block 6 and reset to the first weak magnetic block 19 and reset to the second weak magnetic block 5, and the second weak magnetic block 6 can not reset to the second weak magnetic block 6 and reset to the second weak magnetic block 6 to the second magnetic block 5 and reset to the second weak magnetic block 5, and the second weak magnetic block is reset to the second weak magnetic block 6.
The foregoing is merely one embodiment of the present invention and is not intended to limit the invention in any way, and simple modifications, equivalent variations or modifications can be made without departing from the technical solution of the present invention, all falling within the scope of the invention.
Claims (8)
1. The motor structure of the sander comprises a sander body, a rotor, a stator and a fan fixed on the rotor, and is characterized by further comprising,
the weak magnetic assembly comprises a first weak magnetic block and a second weak magnetic block, and the second weak magnetic block is separated from the first weak magnetic block when the weak magnetic assembly reaches a specific temperature;
the water cooling assembly is arranged in the sander and connected with the stator, and comprises a circulating pump and a circulating water pipe, wherein the circulating water pipe is arranged in the stator, and the circulating pump is started to enable water in the circulating water pipe to start flowing;
the triggering device is matched with the weak magnetic assembly after being heated and provides electric energy for the water cooling assembly;
the expansion piece comprises a first expansion piece and a second expansion piece, the first expansion piece is matched with the locking device, the locking device locks the second weak magnetic block after being separated, the first expansion piece controls the matching state of the locking device and the second weak magnetic block, the second expansion piece is matched with the cleaning device, and the cleaning device is used for cleaning the fan for a plurality of times.
2. The motor structure of claim 1, wherein the first weak magnetic block is fixedly arranged above the second weak magnetic block, the second weak magnetic block is adsorbed below the first weak magnetic block and is provided with a balancing weight, and when the first weak magnetic block and the second weak magnetic block are subjected to the temperature a, the second weak magnetic block is separated from the first weak magnetic block and falls off.
3. The motor structure on a sander according to claim 1, wherein the triggering device comprises an inclined block arranged on the second weak magnetic block and a push block arranged right below the second weak magnetic block, a metal rod is arranged on the push block, a fixed plate is arranged on one side of the push block, a first spring is arranged between the fixed plate and the push block, the motor structure further comprises a U-shaped strong magnetic block arranged on the side face of the fan, a wire is arranged on the metal rod and connected to the water cooling assembly, the metal rod in an initial position cannot enter a U-shaped notch of the U-shaped strong magnetic block, and the push block is extruded by the inclined block to enable the metal rod to enter the U-shaped notch of the U-shaped strong magnetic block, and the U-shaped strong magnetic block rotates along with the fan and continuously passes through the metal rod.
4. The motor structure of claim 1, wherein the higher the temperature the first and second expansion members are, the greater the expansion coefficient, and when the temperature reaches b, the first and second expansion members reach a maximum expansion degree, and when the temperature b is lower than the temperature a, the first expansion member controls the locking device to move to the locking position, and the second expansion member controls the cleaning device to perform the first cleaning on the fan.
5. The motor structure on a sander according to claim 1, wherein the locking device comprises a first rack provided on a side of the second weak magnetic block and a first gear engaged with the first rack and located under the second weak magnetic block, the first gear is provided at one end of a first gear post and engaged with the first gear post through a one-way bearing, the other end of the first gear post is disposed in a first movable cavity, the first expansion member is also provided in the first movable cavity and keeps in contact with the first gear post in an initial state, a first bump is provided on a side of the first gear post and a first chute for placing the first bump is provided on an inner wall of the first movable cavity, a second spring for resetting the first gear post is provided in the first chute, the first expansion member is thermally enlarged under heat so that the first bump on the first gear post is moved in the first movable cavity, and then the first expansion member is moved from the initial position to the locked position.
6. The motor structure of claim 1, wherein the second expansion member is disposed in a second movable cavity, a moving block is disposed in the second movable cavity, the second expansion member is disposed on one side of the moving block, a second protrusion and a second chute are disposed in the moving block and the second movable cavity, a third spring for resetting the moving block is disposed in the second chute, and the other side of the moving block is connected with the cleaning device through a pipe.
7. The motor structure on a sander according to claim 6, wherein the cleaning device is located below the fan, the cleaning device sequentially comprises a cleaning disc, a fixed disc and a driving rod from top to bottom, the cleaning disc is provided with a plurality of groups of movable cleaning brush components, the cleaning brush components comprise a first end plate and a second end plate, the first end plate and the second end plate are connected through a strip-shaped seat, a movable cleaning brush is arranged on the strip-shaped seat, in an initial state, the cleaning brush is contacted with the first end plate, a fourth spring is arranged between the cleaning brush and the second end plate, a common bearing is arranged at the center of the cleaning disc, an outer ring of the common bearing is fixed with the cleaning disc, an inner ring upper part is provided with a cylinder which rotates synchronously with the inner ring, a pull rope is arranged on the cleaning brush, the pull rope penetrates through the second end plate and is connected to the cylinder, a fixed column is arranged between the first end plate and the fixed disc, a lower part of the inner ring is provided with a movable cleaning brush, in an initial state, a second end plate is meshed with a second bevel gear is arranged on the second end plate, a bevel gear is meshed with the second end plate, a bevel gear is arranged on the second end plate is meshed with the fixed rod, a bevel gear is arranged on the second end plate, a bevel gear is meshed with the second end rod, and a bevel gear is meshed with the second end rod is meshed with the first end rod, and the bevel gear is meshed with the bevel gear rod, and the gear is. The boss below is provided with the cavity, the pipeline is connected to on the first actuating lever, just the pipeline with in the first actuating lever the cavity is connected, the second expansion member extrusion the movable block can make the second actuating lever is in upward activity on the first actuating lever.
8. The motor structure of claim 7, wherein the cleaning brush has a width less than a length of the fan blades, and the cleaning brush has a bristle length greater than a height of the fan blades.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310129407.3A CN116231966B (en) | 2023-02-17 | 2023-02-17 | Motor structure on sander |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310129407.3A CN116231966B (en) | 2023-02-17 | 2023-02-17 | Motor structure on sander |
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| CN116231966A true CN116231966A (en) | 2023-06-06 |
| CN116231966B CN116231966B (en) | 2024-06-18 |
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| CN117175859A (en) * | 2023-11-03 | 2023-12-05 | 山东华立供水设备有限公司 | Permanent magnet synchronous motor for clean water pump |
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|---|---|
| CN116231966B (en) | 2024-06-18 |
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