CN114244007A - Noise reduction device for brushless motor of treadmill and use method of noise reduction device - Google Patents
Noise reduction device for brushless motor of treadmill and use method of noise reduction device Download PDFInfo
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- CN114244007A CN114244007A CN202111605958.XA CN202111605958A CN114244007A CN 114244007 A CN114244007 A CN 114244007A CN 202111605958 A CN202111605958 A CN 202111605958A CN 114244007 A CN114244007 A CN 114244007A
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- 125000006850 spacer group Chemical group 0.000 claims description 19
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- 238000012423 maintenance Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 238000013016 damping Methods 0.000 claims 1
- 230000035939 shock Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
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- 229910052761 rare earth metal Inorganic materials 0.000 description 2
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- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
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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
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
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Abstract
The invention discloses a noise reduction device for a brushless motor of a treadmill and a use method of the noise reduction device. The fixing sleeve, the limiting column and the first spring are matched to preliminarily offset the force of vibration transmitted by the mounting seat, so that the condition that mechanical elements in the brushless motor body are damaged due to overlarge vibration amplitude of the brushless motor body is avoided, the problems that the force of vibration can generate noise and cannot meet the requirement of quiet movement of people, and the force of vibration generated by the brushless motor can damage the mechanical elements in the brushless motor body and influence the normal operation of the treadmill are solved.
Description
Technical Field
The invention relates to the technical field of brushless motors, in particular to a noise reduction device for a brushless motor of a treadmill and a use method of the noise reduction device.
Background
The brushless motor is a typical electromechanical integration product, because the brushless DC motor runs in an automatic control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under heavy load under variable frequency speed regulation, oscillation and step-out can not be generated when load suddenly changes, the permanent magnet of the brushless DC motor with medium and small capacity adopts rare earth neodymium iron boron material with high magnetic energy level, so the volume of the rare earth permanent magnet brushless motor is reduced by one machine base number compared with a three-phase asynchronous motor with the same capacity, the brushless motor has wide application range nowadays, wherein the treadmill generally adopts the brushless motor as a driving main body, but the brushless motor can vibrate when in operation, the vibration force can not only generate noise, but also can not meet the requirement of quiet movement of people, and in addition, the vibration force generated by the brushless motor can not only damage mechanical elements inside the brushless motor, and the normal operation of the treadmill can be influenced, so that the noise reduction device for the brushless motor of the treadmill and the use method thereof are provided to solve the problems.
Disclosure of Invention
The invention aims to provide a noise reduction device for a brushless motor of a treadmill and a use method thereof, which have the advantages of shock absorption and noise reduction, and solve the problems that the brushless motor vibrates during operation, the vibration force can not only generate noise, but also can not meet the requirement of quiet movement of people, and in addition, the vibration force generated by the brushless motor can not only damage the internal mechanical elements, but also influence the normal operation of the treadmill.
In order to achieve the purpose, the invention provides the following technical scheme: a noise reduction device for a brushless motor of a running machine comprises a supporting seat, wherein fixed sleeves are fixedly connected around the top of the supporting seat, an inner cavity of each fixed sleeve is movably connected with a limiting column, the tops of the limiting columns penetrate through the fixed sleeves and are fixedly connected with a mounting seat, the bottom of the inner cavity of the mounting seat is movably connected with a fixed plate, a brushless motor body is fixedly connected to the top of the fixed plate, a first spring is sleeved on the surface of the top of the fixed sleeve, which is positioned on the limiting column, the top of the first spring is fixedly connected with the mounting seat, a limiting slide rod is fixedly connected between every two fixed sleeves, movable sleeves are movably connected on two sides of the surface of the limiting slide rod, connecting rods are movably connected to the front side and the rear side of each movable sleeve through rotating shafts, connecting blocks are movably connected to the upper ends of one sides of the connecting rods through rotating shafts, first limiting grooves are formed around the bottom of the mounting seat, the top of connecting rod extends to the inner chamber of first spacing groove and with the inner chamber swing joint of first spacing groove, fixed sleeving's one side and the surface cover that is located spacing slide bar are equipped with the second spring, and the other end and the movable sleeve fixed connection of second spring.
Preferably, the front end and the rear end of both sides of the top of the supporting seat are both provided with a second limiting groove, the inner cavity of the second limiting groove is movably connected with a limiting block, and the top of the limiting block is fixedly connected with the connecting rod.
Preferably, the bottom of the limiting column is fixedly connected with a limiting plate, movable grooves are formed in two sides of the inner cavity of the fixed sleeve, and two sides of the limiting plate extend to the inner cavity of each movable groove and are movably connected with the inner cavity of each movable groove.
Preferably, the front end and the rear end of two sides of the bottom of the inner cavity of the mounting seat are respectively provided with a positioning hole, the periphery of the bottom of the fixing plate is fixedly connected with positioning columns, and the bottoms of the positioning columns extend to the inner cavity of the positioning holes and are movably connected with the inner cavity of the positioning holes.
Preferably, the sliding grooves are formed in the two sides of the inner cavity of the mounting seat, the inner cavity of each sliding groove is movably connected with a sliding block, and one side, far away from the inner cavity of each sliding groove, of each sliding block is fixedly connected with the fixing plate.
Preferably, the fixed box of positive fixedly connected with of mount pad, the equal swing joint in the positive both sides of fixed box has the spacer pin, spacing hole has all been seted up to the positive both sides of fixed plate, the rear end of spacer pin runs through fixed box and mount pad respectively and extends to the inner chamber in spacing hole and with the inner chamber swing joint in spacing hole.
Preferably, the inner cavity fixedly connected with locating plate that just is located fixed box between two the spacer pin, the front end fixedly connected with third spring of locating plate, the front end of third spring and the inner wall fixed connection of fixed box.
Preferably, the rear side of the positioning plate is movably connected with the inner wall of the fixing box, and the front end of the limiting pin is fixedly connected with a connecting plate.
Preferably, the using method comprises the following steps:
A. when the brushless motor body is installed, the connecting plate is pulled to drive the limiting pin to move, the limiting pin drives the positioning plate to move, the positioning plate is stressed to deform, then the fixing plate and the brushless motor body are placed in the inner cavity of the installing seat, the sliding block moves along the inner cavity of the sliding groove, the fixing plate is limited by the limiting pin, when the fixing plate is attached to the inner wall of the installing seat, the positioning column moves along the fixing plate and is inserted into the inner cavity of the positioning hole to position the fixing plate, then the connecting plate is loosened, the third spring is pushed to move by the reset elastic force of the positioning plate, the third spring drives the limiting pin to move, the rear end of the limiting pin is inserted into the inner cavity of the limiting hole, the fixing plate is limited and fixed, and therefore the brushless motor body can operate stably;
B. when the fixed plate and the brushless motor body are placed in the mounting seat, the mounting seat is stressed to move downwards, the mounting seat pushes the limiting column and the first spring to move, the first spring is stressed to deform, at the moment, the limiting column moves towards the inner cavity of the fixed sleeve, the limiting column pushes the limiting plate to move in the inner cavity of the movable groove, the limiting column is limited, meanwhile, the connecting block moves in the inner cavity of the first limiting groove, the connecting block pushes the movable sleeve to slide on the surface of the limiting slide rod through the connecting rod, the movable sleeve pushes the second spring to move while moving, the second spring is stressed to deform, impact force generated when the brushless motor body is installed is buffered and damped, in addition, the movable sleeve drives the limiting block to move in the inner cavity of the second limiting groove while moving, and further, the movable sleeve can keep stable, thereby being beneficial to playing the effect of shock absorption;
C. when the brushless motor body vibrates during operation, the vibration force is transmitted to the connecting block through the mounting seat, the vibration force is transmitted to the movable sleeve through the matching of the connecting block and the connecting rod, the movable sleeve moves under stress, the second spring is pushed to move through the surface displacement of the limiting sliding rod of the movable sleeve, the second spring deforms under stress, the vibration force is counteracted through the reset elastic force of the second spring, and the situation that internal elements are damaged due to the fact that the vibration amplitude is too large during the operation of the motor is further prevented;
D. when dismantling the maintenance to the brushless motor body, drive the spacer pin through the pulling connecting plate and remove, the spacer pin drives the locating plate and removes, and make the locating plate atress take place to deform, the rear end of spacer pin breaks away from the inner chamber in spacing hole simultaneously, then upwards stimulate brushless motor body and fixed plate, the fixed plate is followed to the slider at the inner chamber of spout this moment and is removed, the inner chamber from the locating hole of reference column is taken out simultaneously, and then accomplish demolising the brushless motor body, thereby be favorable to overhauing the brushless motor body and maintaining, not only possesses easy dismounting's advantage, and the work efficiency who overhauls the brushless motor body has been improved.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention is used for preliminarily offsetting the force of vibration transmitted by the mounting seat through the matching of the fixed sleeve, the limiting column and the first spring, thereby avoiding the condition that the mechanical elements in the brushless motor body are damaged due to overlarge vibration amplitude, has the effect of facilitating the mounting of the fixed plate through the fixed plate, is used for supporting the mounting seat through the limiting slide rod, the movable sleeve, the connecting rod and the connecting block in cooperation with the first limiting groove, simultaneously can offset the force of vibration generated by the brushless motor body for the second time through the matching of the second spring, thereby improving the stability of the brushless motor body when in operation, avoiding the noise generated by the force of vibration when the brushless motor body is in operation, further influencing the quiet motion environment of people, and simultaneously protecting the mechanical elements in the running machine from the influence of vibration to generate the condition of operation failure, the problem of brushless motor can take place vibrations when the function, the power of vibrations not only can produce the noise, can't satisfy the demand of people's quiet motion moreover, the power that brushless motor produced vibrations in addition not only can cause the damage to its inside mechanical component, can influence treadmill normal operation moreover is solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a front cross section of the support base, the fixing sleeve and the mounting base of the present invention;
FIG. 3 is a schematic front view of the mounting base of the present invention;
FIG. 4 is a bottom view of the fixing plate of the present invention;
FIG. 5 is a schematic top sectional view of the fastening box of the present invention;
fig. 6 is an enlarged view of a portion of the structure of fig. 2.
In the figure: 1. a supporting seat; 2. fixing the sleeve; 3. a limiting column; 4. a mounting seat; 5. a fixing plate; 6. a brushless motor body; 7. a first spring; 8. a limiting slide bar; 9. a movable sleeve; 10. a connecting rod; 11. connecting blocks; 12. a first limit groove; 13. a second spring; 14. a second limit groove; 15. a limiting block; 16. a limiting plate; 17. a movable groove; 18. positioning holes; 19. a positioning column; 20. a chute; 21. a slider; 22. a fixing box; 23. a spacing pin; 24. a connecting plate; 25. a third spring; 26. positioning a plate; 27. and a limiting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a noise reduction device for a brushless motor of a treadmill comprises a support base 1, wherein fixed sleeves 2 are fixedly connected around the top of the support base 1, an inner cavity of each fixed sleeve 2 is movably connected with a limiting post 3, the top of each limiting post 3 penetrates through the corresponding fixed sleeve 2 and is fixedly connected with a mounting seat 4, the bottom of the inner cavity of each mounting seat 4 is movably connected with a fixed plate 5, the top of each fixed plate 5 is fixedly connected with a brushless motor body 6, a first spring 7 is sleeved on the top of each fixed sleeve 2 and positioned on the surface of the corresponding limiting post 3, the top of each first spring 7 is fixedly connected with the corresponding mounting seat 4, a limiting slide bar 8 is fixedly connected between each two fixed sleeves 2, movable sleeves 9 are movably connected on two sides of the surface of each limiting slide bar 8, connecting rods 10 are movably connected on the front sides and the rear sides of the movable sleeves 9 through rotating shafts, and connecting blocks 11 are movably connected on the upper ends of one sides of the connecting rods 10 through rotating shafts, the periphery of the bottom of the mounting seat 4 is provided with a first limiting groove 12, the top of the connecting rod 10 extends to the inner cavity of the first limiting groove 12 and is movably connected with the inner cavity of the first limiting groove 12, one side of the fixed sleeve 2 and the surface of the limiting slide rod 8 are sleeved with a second spring 13, the other end of the second spring 13 is fixedly connected with the movable sleeve 9, the fixing sleeve 2, the limiting column 3 and the first spring 7 are matched for preliminarily offsetting the force of vibration transmitted by the mounting seat 4, further the condition that the mechanical elements in the brushless motor body 6 are damaged due to overlarge vibration amplitude is avoided, the fixing plate 5 has an effect of conveniently mounting the fixing plate 5, the mounting seat 4 is supported by the limiting slide rod 8, the movable sleeve 9, the connecting rod 10 and the connecting block 11 by matching with the first limiting groove 12, and the force of vibration generated by the brushless motor body 6 can be offset secondarily by matching with the second spring 13, and then improved the stability when brushless motor body 6 functions, the production of the power of vibrations when avoiding brushless motor body 6 to function leads to the noise, and then influence the environment of people's quiet motion, can protect the inside mechanical component of treadmill not receive the influence of vibrations the condition that breaks down in operation simultaneously, it can take place vibrations to have solved brushless motor when the function, the power of vibrations not only can produce the noise, and can't satisfy people's quiet motion's demand, brushless motor produces the power of vibrations and not only can cause the damage to its inside mechanical component in addition, and can influence the problem of treadmill normal operation.
Specifically, the second spacing groove 14 has all been seted up to the front end and the rear end of 1 top both sides of supporting seat, and the inner chamber swing joint of second spacing groove 14 has stopper 15, and stopper 15's top and connecting rod 10 fixed connection, through setting up second spacing groove 14 and stopper 15 for it is spacing to carry out movable sleeve 9, and this makes movable sleeve 9 can be at the stable in surface's of limit slide bar 8 removal.
Specifically, the bottom fixedly connected with limiting plate 16 of spacing post 3, movable groove 17 has all been seted up to the both sides of fixed sleeving 2 inner chamber, and the both sides of limiting plate 16 all extend to movable groove 17's inner chamber and with movable groove 17's inner chamber swing joint, through setting up limiting plate 16 and movable groove 17 for spacing post 3, played the effect that improves spacing post 3 stability.
Specifically, locating hole 18 has all been seted up to the front end and the rear end of 4 inner chamber bottom both sides of mount pad, the equal fixedly connected with reference column 19 all around of fixed plate 5 bottom, the bottom of reference column 19 extend to the inner chamber of locating hole 18 and with the inner chamber swing joint of locating hole 18, through setting up locating hole 18 and reference column 19, played the effect of fixing a position fixed plate 5.
Concrete, spout 20 has all been seted up to the both sides of 4 inner chambers of mount pad, and the inner chamber swing joint of spout 20 has slider 21, and slider 21 keeps away from one side and the fixed plate 5 fixed connection of spout 20 inner chamber, through setting up spout 20 and slider 21 for it is spacing to carry out fixed plate 5, and this makes fixed plate 5 drive reference column 19 can be pegged graft with locating hole 18 accuracy.
Specifically, the fixed box 22 of positive fixedly connected with of mount pad 4, the equal swing joint in the positive both sides of fixed box 22 has spacer pin 23, and spacing hole 27 has all been seted up to the positive both sides of fixed plate 5, and the rear end of spacer pin 23 runs through fixed box 22 and mount pad 4 respectively and extends to the inner chamber of spacing hole 27 and with the inner chamber swing joint of spacing hole 27.
Specifically, a positioning plate 26 is fixedly connected between the two limit pins 23 and in the inner cavity of the fixing box 22, a third spring 25 is fixedly connected to the front end of the positioning plate 26, and the front end of the third spring 25 is fixedly connected to the inner wall of the fixing box 22.
Specifically, the rear side of locating plate 26 and the inner wall swing joint of fixed box 22, the front end fixedly connected with connecting plate 24 of spacer pin 23, through setting up fixed box 22, spacer pin 23, connecting plate 24, third spring 25 and locating plate 26, be used for cooperating spacing hole 27 to carry out spacing fixed to fixed plate 5, and then make brushless motor body 6 remain stable, possess the advantage of being convenient for demolish fixed plate 5 simultaneously, so that overhaul and maintain brushless motor body 6.
Specifically, the using method comprises the following steps:
A. when the brushless motor body 6 is installed, the connecting plate 24 is pulled to drive the limit pin 23 to move, the limit pin 23 drives the positioning plate 26 to move, and the positioning plate 26 is stressed to deform, then the fixed plate 5 and the brushless motor body 6 are placed in the inner cavity of the mounting seat 4 and the slide block 21 moves along the inner cavity of the sliding groove 20, so as to limit the fixed plate 5, when the fixing plate 5 is attached to the inner wall of the mounting seat 4, the positioning post 19 moves along with the fixing plate 5 and is inserted into the inner cavity of the positioning hole 18 to position the fixing plate 5, then the connecting plate 24 is loosened, the third spring 25 is pushed to move by the reset elasticity of the positioning plate 26, the third spring 25 drives the limit pin 23 to move, so that the rear end of the limit pin 23 is inserted into the inner cavity of the limit hole 27, the fixing plate 5 is limited and fixed, so that the brushless motor body 6 can operate stably;
B. when the fixed plate 5 and the brushless motor body 6 are placed in the mounting seat 4, the mounting seat 4 is stressed to move downwards, the mounting seat 4 pushes the limiting column 3 and the first spring 7 to move, and the first spring 7 is stressed to deform, at the same time, the limiting column 3 moves towards the inner cavity of the fixed sleeve 2, the limiting column 3 pushes the limiting plate 16 to move in the inner cavity of the movable groove 17, so that the limiting column 3 is limited, at the same time, the connecting block 11 moves in the inner cavity of the first limiting groove 12, at the same time, the connecting block 11 pushes the movable sleeve 9 to slide on the surface of the limiting slide rod 8 through the connecting rod 10, the movable sleeve 9 pushes the second spring 13 to move while moving, and the second spring 13 is stressed to deform, so as to buffer and absorb shock of impact force generated when the brushless motor body 6 is installed, in addition, the movable sleeve 9 drives the limiting block 15 to limit and move in the inner cavity of the second limiting groove 14 while moving, the movable sleeve 9 can be kept stable, thereby being beneficial to playing a shock absorption effect;
C. when the brushless motor body 6 operates to generate vibration, the vibration force is transmitted to the connecting block 11 through the mounting seat 4, the vibration force is transmitted to the movable sleeve 9 through the matching of the connecting block 11 and the connecting rod 10, the movable sleeve 9 is stressed to move at the moment, the second spring 13 is pushed to move through the surface displacement of the movable sleeve 9 on the limiting slide rod 8, meanwhile, the second spring 13 is stressed to deform, the vibration force is counteracted through the reset elastic force of the second spring 13, and the condition that internal elements of the motor are damaged due to overlarge vibration amplitude generated during the operation is further prevented;
D. when dismantling the maintenance to brushless motor body 6, drive spacer pin 23 through pulling connecting plate 24 and remove, spacer pin 23 drives locating plate 26 and removes, and make locating plate 26 atress take place deformation, the rear end of spacer pin 23 breaks away from spacing hole 27's inner chamber simultaneously, then upwards stimulate brushless motor body 6 and fixed plate 5, slider 21 follows fixed plate 5 and removes at spout 20's inner chamber this moment, reference column 19 is taken out from the inner chamber of locating hole 18 simultaneously, and then accomplish demolising brushless motor body 6, thereby be favorable to overhauing brushless motor body 6 and maintaining, not only possessed easy dismounting's advantage, and the work efficiency who overhauls brushless motor body 6 has been improved.
The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, the control mode is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the control circuit belongs to the common knowledge in the field, and the present application document is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present application.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a brushless motor of treadmill is with device of making an uproar falls, includes supporting seat (1), its characterized in that: the supporting seat is characterized in that fixed sleeves (2) are fixedly connected to the periphery of the top of the supporting seat (1), a limiting column (3) is movably connected to the inner cavity of each fixed sleeve (2), the top of each limiting column (3) penetrates through the corresponding fixed sleeve (2) and is fixedly connected with a mounting seat (4), a fixed plate (5) is movably connected to the bottom of the inner cavity of each mounting seat (4), a brushless motor body (6) is fixedly connected to the top of each fixed plate (5), a first spring (7) is sleeved on the surface of the corresponding fixed sleeve (2) and located on the corresponding limiting column (3), the top of each first spring (7) is fixedly connected with the corresponding mounting seat (4), a limiting slide bar (8) is fixedly connected between every two fixed sleeves (2), movable sleeves (9) are movably connected to the two sides of the surface of each limiting slide bar (8), connecting rods (10) are movably connected to the front side and the rear side of each movable sleeve (9), and the upper end of connecting rod (10) one side has connecting block (11) through pivot swing joint, first spacing groove (12) have all been seted up all around to mount pad (4) bottom, the top of connecting rod (10) extend to the inner chamber of first spacing groove (12) and with the inner chamber swing joint of first spacing groove (12), the surface cover that just is located spacing slide bar (8) in one side of fixed sleeve (2) is equipped with second spring (13), and the other end and the movable sleeve (9) fixed connection of second spring (13).
2. The noise reduction device for the brushless motor of the treadmill according to claim 1, wherein: second spacing groove (14) have all been seted up to the front end and the rear end of supporting seat (1) top both sides, the inner chamber swing joint of second spacing groove (14) has stopper (15), and the top and connecting rod (10) fixed connection of stopper (15).
3. The noise reduction device for the brushless motor of the treadmill according to claim 1, wherein: the bottom fixedly connected with limiting plate (16) of spacing post (3), activity groove (17) have all been seted up to the both sides of fixed sleeving (2) inner chamber, the both sides of limiting plate (16) all extend to the inner chamber of activity groove (17) and with the inner chamber swing joint of activity groove (17).
4. The noise reduction device for the brushless motor of the treadmill according to claim 1, wherein: locating holes (18) are formed in the front end and the rear end of two sides of the bottom of the inner cavity of the mounting seat (4), locating columns (19) are fixedly connected to the periphery of the bottom of the fixing plate (5), and the bottoms of the locating columns (19) extend to the inner cavity of the locating holes (18) and are movably connected with the inner cavity of the locating holes (18).
5. The noise reduction device for the brushless motor of the treadmill according to claim 1, wherein: spout (20) have all been seted up to the both sides of mount pad (4) inner chamber, the inner chamber swing joint of spout (20) has slider (21), one side and fixed plate (5) fixed connection of spout (20) inner chamber are kept away from in slider (21).
6. The noise reduction device for the brushless motor of the treadmill according to claim 1, wherein: the fixed box of positive fixedly connected with (22) of mount pad (4), the equal swing joint in both sides that fixed box (22) are positive has spacer pin (23), spacing hole (27) have all been seted up to the positive both sides of fixed plate (5), the rear end of spacer pin (23) run through fixed box (22) and mount pad (4) respectively and extend to the inner chamber of spacing hole (27) and with the inner chamber swing joint of spacing hole (27).
7. The noise reduction device for a brushless motor of a treadmill of claim 6, wherein: two inner chamber fixedly connected with locating plate (26) that just is located fixed box (22) between spacer pin (23), the front end fixedly connected with third spring (25) of locating plate (26), the front end of third spring (25) and the inner wall fixed connection of fixed box (22).
8. The noise reduction device for a brushless motor of a treadmill of claim 7, wherein: the rear side of the positioning plate (26) is movably connected with the inner wall of the fixed box (22), and the front end of the limiting pin (23) is fixedly connected with a connecting plate (24).
9. The use method of the noise reduction device for the brushless motor of the treadmill according to any one of claims 1 to 9, wherein the noise reduction device comprises: the using method comprises the following steps:
A. when the brushless motor body (6) is installed, the connecting plate (24) is pulled to drive the limiting pin (23) to move, the limiting pin (23) drives the positioning plate (26) to move, the positioning plate (26) is stressed to deform, then the fixing plate (5) and the brushless motor body (6) are placed in the inner cavity of the installation seat (4) and the sliding block (21) moves along the inner cavity of the sliding groove (20), so that the fixing plate (5) is limited, when the fixing plate (5) is attached to the inner wall of the installation seat (4), the positioning column (19) moves along with the fixing plate (5) and is inserted into the inner cavity of the positioning hole (18) to position the fixing plate (5), then the connecting plate (24) is loosened, the third spring (25) is pushed to move through the reset elastic force of the positioning plate (26), the third spring (25) drives the limiting pin (23) to move, so that the rear end of the limiting pin (23) is inserted into the inner cavity of the limiting hole (27), the fixing plate (5) is limited and fixed, so that the brushless motor body (6) can operate stably;
B. when the fixed plate (5) and the brushless motor body (6) are placed in the mounting seat (4), the mounting seat (4) is stressed to move downwards, the mounting seat (4) pushes the limiting column (3) and the first spring (7) to move, the first spring (7) is stressed to deform, the limiting column (3) moves towards the inner cavity of the fixed sleeve (2), the limiting column (3) pushes the limiting plate (16) to move in the inner cavity of the movable groove (17), the limiting column (3) is limited, meanwhile, the connecting block (11) moves in the inner cavity of the first limiting groove (12), the connecting block (11) pushes the movable sleeve (9) to slide on the surface of the limiting slide bar (8) through the connecting rod (10), the movable sleeve (9) pushes the second spring (13) to move while moving, the second spring (13) is stressed to deform, and therefore impact force generated when the brushless motor body (6) is mounted is buffered, in addition, the movable sleeve (9) drives the limiting block (15) to perform limiting movement in the inner cavity of the second limiting groove (14) while moving, so that the movable sleeve (9) can be kept stable, and the damping effect is facilitated;
C. when the brushless motor body (6) operates to generate vibration, the vibration force is transmitted to the connecting block (11) through the mounting seat (4), the vibration force is transmitted to the movable sleeve (9) through the matching of the connecting block (11) and the connecting rod (10), the movable sleeve (9) is stressed to move at the moment, the second spring (13) is pushed to move through the surface displacement of the movable sleeve (9) on the limiting sliding rod (8), meanwhile, the second spring (13) is stressed to deform, the vibration force is offset through the reset elastic force of the second spring (13), and therefore the situation that the internal elements of the motor are damaged due to overlarge vibration amplitude generated during operation is prevented;
D. when dismantling the maintenance to brushless motor body (6), drive spacer pin (23) through pulling connecting plate (24) and remove, spacer pin (23) drive locating plate (26) and remove, and make locating plate (26) atress take place deformation, the rear end of spacer pin (23) breaks away from the inner chamber of spacing hole (27) simultaneously, then upwards stimulate brushless motor body (6) and fixed plate (5), slider (21) are followed fixed plate (5) and are removed at the inner chamber of spout (20) this moment, the inner chamber from locating hole (18) of reference column (19) is taken out simultaneously, and then accomplish the demolising of brushless motor body (6), with this be favorable to overhauing brushless motor body (6) and maintaining, not only possessed easy dismounting's advantage, and the work efficiency who overhauls brushless motor body (6) has been improved.
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| CN202111605958.XA CN114244007A (en) | 2021-12-25 | 2021-12-25 | Noise reduction device for brushless motor of treadmill and use method of noise reduction device |
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