Motor rotor commutator positioning and mounting device

Abstract

The utility model discloses a motor rotor commutator positioning installation device which comprises a treadmill and a driving device used for being connected with a treadmill track, installation mechanisms are arranged at the two ends of the driving device, the driving device is movably connected with the installation mechanisms, and the driving device moves relative to the treadmill through the installation mechanisms. Wherein the mounting mechanism is fixedly connected with the running machine, and the driving device moves in a self-rotation mode through the mounting mechanism after generating power. In the using process, when the brushless motor rotates, power is concentrated on the machine body, the installation devices connected with the two ends of the brushless motor are connected through the movable bearings, the structure is convenient and fast to install, vibration generated by the brushless motor can be reduced and transmitted to the running machine in the running process, and the running machine is more stable. Therefore, noise generated by resonance of the driving device to the treadmill is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motor installation devices, in particular to a motor rotor commutator positioning and installation device. Background Art

[0002] In recent years, with the improvement of people's living standards and the increase of fitness awareness, electric treadmills have been widely used as an important fitness equipment. The traditional treadmill drive system uses a brushed motor as the drive mechanism, but it has the defects of limited motor capacity and high noise. With the development of technology, products using brushless motors as treadmill drive mechanisms have been widely used in the market.

[0003] The utility model patent with application number CN201520069781.X discloses an outer rotor brushless motor for a treadmill. It includes a stator fixed shaft, an inner stator fixed on the stator fixed shaft, and an outer rotor sleeved on the inner stator. A motor front cover and a motor rear cover are provided on the stator fixed shaft and at both ends of the outer rotor. The motor front cover and the motor rear cover rotate with the rotation of the outer rotor, and a pulley fixing slot is provided on the motor front cover. The outer rotor brushless motor for a treadmill adopts an outer rotor permanent magnet DC brushless motor structure as a whole. A tooth groove for installing a pulley is processed on the end of the motor front cover. When the outer rotor rotates, the pulley part rotates with it, thereby transmitting torque and providing power output.

[0004] However, the motor in the above patent is fixed at one end and the other end is a fixed motor and a counterweight flywheel is set. During operation, since the motor and the treadmill track are directly driven by the drive shaft, the vibration generated during the operation of the motor will be directly transmitted to the treadmill, thereby generating a lot of noise. The structure is not stable enough and cannot meet the use requirements. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art solutions, the utility model provides a motor rotor commutator positioning and installation device, which can effectively solve the problems raised by the background technology.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A motor rotor commutator positioning and installation device, comprising a treadmill and a driving device for connecting to a treadmill track, wherein mounting mechanisms are provided at both ends of the driving device, the driving device is movably connected to the mounting mechanism, the driving device moves relative to the treadmill through the mounting mechanism, wherein the mounting mechanism is fixedly connected to the treadmill, and the driving device moves in a self-rotating manner through the mounting mechanism after generating power;

[0008] The mounting mechanism includes two supporting bodies, which are symmetrically mounted at both ends of the driving device, and the two supporting bodies extend to both sides and are provided with a first fixing portion and a second fixing portion, wherein the two supporting bodies arranged on the driving device are also provided with an upwardly protruding connecting block, and the connecting block is provided with a hollow structure, which is a motor mounting cavity.

[0009] As a further description of the above technical solution, the driving device includes a brushless motor and a power cord connected to the brushless motor, and mounting shafts are connected to both ends of the brushless motor. The mounting shafts are correspondingly arranged on the connecting block, wherein the motor mounting cavity is respectively used to connect the first mounting portion and the second mounting portion of the mounting shaft.

[0010] As a further description of the above technical solution, the first mounting part and the second mounting part are provided with mounting grooves, and the mounting grooves are also provided with movable bearings, wherein the end of the mounting shaft is embedded in the mounting groove and connected to the movable bearing.

[0011] As a further description of the above technical solution, the first fixing part and the second fixing part are symmetrically arranged on the supporting body, wherein the first fixing part and the second fixing part are an oblong fixing hole, and the supporting body is fixedly connected to the treadmill after screws pass through the fixing holes.

[0012] As a further description of the above technical solution, the length of the fixing hole is 20mm-25mm, the width of the fixing hole is 6.2mm-8.2mm, wherein the first fixing part or the second fixing part of the supporting body is also provided with a through hole, and the diameter of the through hole is 6mm-8mm.

[0013] As a further description of the above technical solution, the length and width of the support body are 95 mm and 19 mm, wherein the connecting block is integrally formed with the support body, and the height from the highest point of the connecting block to the bottom of the support body is 40.5 mm.

[0014] As a further description of the above technical solution, the top of the connecting block is a plane, both sides of the connecting block have arc surfaces, and the width of the connecting block is equal to that of the supporting body.

[0015] As a further description of the above technical solution, the installation distance between the connecting block and one of the mounting axes of the brushless motor is 2mm-3mm, and the installation distance of the connecting block away from the other end of one of the mounting axes of the brushless motor is 3mm-4.5mm.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The motor rotor commutator positioning and installation device of the utility model has at least one of the following beneficial effects during use:

[0018] The movable bearing allows the brushless motor to rotate after installation when external force is applied. Since the front cover of the brushless motor and the drive shaft are an integrated structure, the drive shaft rotates synchronously when the brushless motor rotates. A threaded structure for connecting to the treadmill track is provided on the drive shaft. During use, the power of the brushless motor is concentrated on the body when it rotates, and the mounting devices connected to both ends of the brushless motor are connected through movable bearings. This structure is easy and quick to install, and can reduce the vibration generated by the brushless motor and transmitted to the treadmill during operation, thereby greatly reducing the noise generated by the resonance of the drive device on the treadmill. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a treadmill installation of a motor rotor commutator positioning and installation device of the utility model;

[0020] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of part A;

[0021] Figure 3 This is a motor installation schematic diagram of a motor rotor commutator positioning and installation device of the utility model;

[0022] Figure 4 This is a top view structural schematic diagram of a motor rotor commutator positioning and installation device of the utility model;

[0023] Figure 5 This is a first side structural schematic diagram of a motor rotor commutator positioning and installation device of the utility model;

[0024] Figure 6 This is a second side structural schematic diagram of a motor rotor commutator positioning and installation device of the utility model;

[0025] Figure 7 This is a third side structural schematic diagram of a motor rotor commutator positioning and installation device of the utility model.

[0026] Numbers in the figure:

[0027] 1. Treadmill; 2. Driving device; 201. Brushless motor; 202. Power cord; 203. Mounting shaft; 3. Mounting mechanism; 301. First fixing part; 302. Second fixing part; 303. Motor mounting cavity; 304. Support body; 305. Connecting block; 306. First mounting part; 307. Second mounting part; 308. Through hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1-7 As shown, the utility model provides a motor rotor commutator positioning and installation device, including a treadmill 1 and a driving device 2 for connecting the track of the treadmill 1, mounting mechanisms 3 are provided at both ends of the driving device 2, the driving device 2 is movably connected to the mounting mechanism 3, the driving device 2 makes relative movement with the treadmill 1 through the mounting mechanism 3, wherein the mounting mechanism 3 is fixedly connected to the treadmill 1, and the driving device 2 moves in a self-rotating manner through the mounting mechanism 3 after generating power.

[0030] The track connection structure at one end of the brushless motor 201 is provided with a threaded drive shaft, and a mounting shaft 203 is also provided at the end of the drive shaft. At the same time, a second mounting shaft 203 is also provided at the other end of the brushless motor 201, and the brushless motor 201 is connected to the mounting mechanism 3 through the mounting shaft 203.

[0031] The mounting mechanism 3 includes more than two supporting bodies 304, which are symmetrically mounted at both ends of the driving device 2. The two supporting bodies 304 extend to both sides and are provided with a first fixing portion 301 and a second fixing portion 302. The two supporting bodies 304 arranged on the driving device 2 are also provided with an upwardly protruding connecting block 305, and the connecting block 305 is provided with a hollow structure, which is a motor mounting cavity 303.

[0032] The brushless motor 201 in this embodiment is connected to the mounting mechanism 3 through a movable bearing, so that the brushless motor 201 can rotate as a whole when generating driving force, wherein the mounting mechanism 3 is composed of two supporting bodies 304. The supporting body 304 is composed of a connecting block 305 and a first fixing part 301 and a second fixing part 302 extending to both sides, and the supporting body 304 is in an inverted "T" shape as a whole, wherein the first fixing part 301 and the second fixing part 302 are stably fixed on the treadmill 1 by bolts.

[0033] It is further explained that the driving device 2 includes a brushless motor 201 and a power cord 202 connected to the brushless motor 201, and mounting shafts 203 are connected to both ends of the brushless motor 201. The mounting shafts 203 are correspondingly arranged on the connecting block 305, wherein the motor mounting cavity 303 is respectively used to connect the first mounting portion 306 and the second mounting portion 307 of the mounting shaft 203.

[0034] In one of the present examples, the end covers at both ends of the brushless motor 201 are integrally formed with the mounting shaft 203 and the driving shaft, wherein the mounting shaft 203 is embedded in the connecting block 305 and connected to the movable bearing, wherein the distance between the supporting body 304 connected to one end of the driving shaft is 3 mm, and the distance between the supporting body 304 at the other end and the mounting shaft 203 is 2 mm.

[0035] It is further explained that the first mounting portion 306 and the second mounting portion 307 are provided with mounting grooves, and movable bearings are also provided on the mounting grooves, wherein the end of the mounting shaft 203 is embedded in the mounting groove and connected to the movable bearing.

[0036] The brushless motor 201 can rotate after being installed and then external force is applied through the movable bearing. Since the front end cover of the brushless motor 201 and the drive shaft are an integrated structure, the drive shaft rotates synchronously when the brushless motor 201 rotates. A threaded structure for connecting to the track of the treadmill 1 is provided on the drive shaft. During use, the power of the brushless motor 201 is concentrated on the body when it rotates, and the installation device connected to the two ends of the brushless motor 201 can reduce the vibration generated by the brushless motor 201 after being connected through the movable bearing. The transmission to the treadmill 1 can greatly reduce the noise generated by the resonance of the drive device 2 on the treadmill 1.

[0037] It is further explained that the first fixing portion 301 and the second fixing portion 302 are symmetrically arranged on the supporting body 304, wherein the first fixing portion 301 and the second fixing portion 302 are an oblong fixing hole, and the supporting body 304 is fixedly connected to the treadmill 1 by screws passing through the fixing holes.

[0038] In the second embodiment, the first fixing portion 301 and the second fixing portion 302 are extended to both sides, wherein the fixing holes can be formed into circular holes or polygonal holes according to actual installation requirements.

[0039] The bolts are connected to the fixed parts of the treadmill 1 after passing through the fixing holes, so that the brushless motor 201 is stably and firmly installed on the treadmill 1. The supporting body 304 can be formed by iron, steel or high-strength alloy.

[0040] It is further explained that the length of the fixing hole is 20mm-25mm, the width of the fixing hole is 6.2mm-8.2mm, wherein the first fixing part 301 or the second fixing part 302 located on the supporting body 304 is also provided with a through hole 308, and the diameter of the through hole 308 is 6mm-8mm.

[0041] It is further explained that the length and width of the support body 304 are 95 mm and 19 mm, wherein the connection block 305 is integrally formed with the support body 304, and the height from the highest point of the connection block 305 to the bottom of the support body 304 is 40.5 mm.

[0042] It is further explained that the top of the connection block 305 is a plane, both sides of the connection block 305 have arc surfaces, and the width of the connection block 305 is equal to that of the supporting body 304.

[0043] It is further explained that the installation distance between the connection block 305 and one of the installation shafts 203 of the brushless motor 201 is 2mm-3mm, and the installation distance between the connection block 305 and the other end of one of the installation shafts 203 of the brushless motor 201 is 3mm-4.5mm.

[0044] In the third embodiment, the length and width of the fixing hole are 25 mm and 8.2 mm respectively, and a through hole 308 with a diameter of 8 mm is opened at the fixing portion on one side of the support body 304 .

[0045] During the installation process, the distance between the connecting block 305 and the driving shaft of the brushless motor 201 is 3 mm, and the installation distance at the other end is 4.5 mm. The connecting block 305 is provided with perforations for leading out the power line 202 .

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A motor rotor commutator positioning and installation device, comprising a treadmill and a driving device for connecting the treadmill crawler, characterized in that: Mounting mechanisms are provided at both ends of the driving device, the driving device is movably connected to the mounting mechanisms, the driving device makes relative movement with the treadmill through the mounting mechanisms, wherein the mounting mechanisms are fixedly connected to the treadmill, and the driving device moves in a self-rotating manner through the mounting mechanisms after generating power; The mounting mechanism includes two supporting bodies, which are symmetrically mounted at both ends of the driving device, and the two supporting bodies extend to both sides and are provided with a first fixing portion and a second fixing portion, wherein the two supporting bodies arranged on the driving device are also provided with an upwardly protruding connecting block, and the connecting block is provided with a hollow structure, which is a motor mounting cavity.

2. The motor rotor commutator positioning and installation device according to claim 1, characterized in that: The driving device includes a brushless motor and a power cord connected to the brushless motor. Both ends of the brushless motor are connected with mounting shafts, and the mounting shafts are correspondingly arranged on the connecting block, wherein the motor mounting cavity is respectively used to connect the first mounting portion and the second mounting portion of the mounting shaft.

3. The motor rotor commutator positioning and installation device according to claim 2, characterized in that: The first mounting portion and the second mounting portion are provided with mounting grooves, and movable bearings are also provided on the mounting grooves, wherein the end of the mounting shaft is connected to the movable bearing after being embedded in the mounting grooves.

4. The motor rotor commutator positioning and installation device according to claim 1, characterized in that: The first fixing part and the second fixing part are symmetrically arranged on the supporting body, wherein the first fixing part and the second fixing part are an oblong fixing hole, and the supporting body is fixedly connected to the treadmill after screws pass through the fixing holes.

5. The motor rotor commutator positioning and installation device according to claim 4, characterized in that: The length of the fixing hole is 20mm-25mm, and the width of the fixing hole is 6.2mm-8.2mm. The first fixing part or the second fixing part of the supporting body is also provided with a through hole, and the diameter of the through hole is 6mm-8mm.

6. The motor rotor commutator positioning and installation device according to claim 1, characterized in that: The length and width of the supporting body are 95 mm and 19 mm, wherein the connecting block is integrally formed with the supporting body, and the height from the highest point of the connecting block to the bottom of the supporting body is 40.5 mm.

7. A motor rotor commutator positioning and installation device according to claim 1, 2 or 6, characterized in that: The top of the connection block is a plane, both sides of the connection block have arc surfaces, and the width of the connection block is equal to that of the supporting body.

8. The motor rotor commutator positioning and installation device according to claim 2, characterized in that: The installation distance between the connecting block and one of the installation shafts of the brushless motor is 2mm-3mm, and the installation distance of the connecting block away from the other end of one of the installation shafts of the brushless motor is 3mm-4.5mm.

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