CN209896786U

CN209896786U - Motor for fitness equipment

Info

Publication number: CN209896786U
Application number: CN201921032939.0U
Authority: CN
Inventors: 俞霖
Original assignee: Changzhou Hui Heng Electric Technology Co Ltd
Current assignee: Changzhou Hui Heng Electric Technology Co Ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-01-03
Anticipated expiration: 2029-07-03

Abstract

The utility model relates to a body-building apparatus technical field especially relates to a motor for body-building apparatus, include: the device comprises a rotating shaft, a stator, a rotor, a bearing and a cover plate; the rotating shaft is fixed at the axial center of the stator, and the stator is provided with a leading-out wire; the bearing is sleeved at two ends of the rotating shaft, the cover plates are arranged at two sides of the stator and sleeved on the bearing through the rotating shaft, and the rotor is fixed on the outer ring of the stator through the two cover plates; the rotating shaft is provided with a wire outlet notch on at least one side of the stator, the wire outlet notch is formed by cutting one end of the rotating shaft along the axial direction and is used for leading out a leading-out wire of the stator to the outer side of the cover plate. Through set up the breach of being qualified for the next round of competitions in the pivot, can be convenient pass the apron with the lead-out wire on the stator after draw forth, compare with prior art, both can not arouse the damage because of handling the pivot tip, also make things convenient for the installation of apron, can not lead to when the apron installation because the cable does not have the space and is worn and torn, when having improved the qualification rate of product, also reduced the installation time of product, improved product production efficiency.

Description

Motor for fitness equipment

Technical Field

The utility model relates to a body-building apparatus technical field especially relates to a motor for body-building apparatus.

Background

The fitness equipment is sports equipment, and can strengthen the strength and the flexibility of muscles, increase the endurance, improve the coordination and control the ability of each part of the body by training on the fitness equipment, so that the body is strong; with the increasing integration of the functions of the fitness equipment, the motor plays an increasingly important role in the fitness equipment.

In the prior art, the motor outgoing line of the fitness equipment motor is usually led out from a motor shaft by a thick wire harness, as shown in fig. 1, however, the outgoing line cable is easily damaged and broken at an outer hole of the motor shaft, and the failure rate of the motor caused by the reason is relatively high.

Chinese utility model with publication number CN201868996U is dedicated to 2011, and is disclosed in 06 month 15, an electric motor for electric vehicle outlet structure is disclosed, and the cable is drawn out through the inclined hole that sets up on the motor shaft, as shown in fig. 2, however when implementing the above structure, the utility model discloses an inventor found when installing the both sides apron of motor, the cable that draws out on the motor shaft was damaged easily when the apron hole passed the motor shaft, and the ex-factory qualification rate of motor is lower.

In view of the above problems, the designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is actively researched and innovated in cooperation with the application of scholars, so as to create a motor for fitness equipment, and the motor is more practical.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a motor for fitness equipment, reduce the damage to the lead-out wire.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an electric motor for fitness equipment, comprising: the device comprises a rotating shaft, a stator, a rotor, a bearing and a cover plate;

the rotating shaft is fixed at the axial center of the stator, and the stator is provided with a leading-out wire; the bearing sleeves two ends of the rotating shaft, the cover plates are arranged on two sides of the stator and penetrate through the rotating shaft to be sleeved on the bearing, and the rotor is fixed on the outer ring of the stator through the two cover plates;

the rotating shaft is provided with an outlet notch on at least one side of the stator, the outlet notch is formed by axially cutting one end of the rotating shaft and is used for leading out the outgoing line of the stator to the outer side of the cover plate.

Preferably, the depth of the wire outlet notch along the radial direction of the rotating shaft is smaller than the length of the radius of the rotating shaft.

Preferably, the length of the outlet notch along the axial direction of the rotating shaft is less than half of the length of the rotating shaft.

Preferably, still be provided with cable guide stationary plane in the pivot, cable guide stationary plane with the axial plane parallel arrangement of the breach of being qualified for the next round of competitions, be provided with the fixed orifices on the guide stationary plane for fixed cable guide.

Preferably, the rotor is in a gear ring structure, and hole sites corresponding to the circumferential edge of the cover plate are arranged on the side surface of the rotor and used for fixing the rotor on the cover plate.

Preferably, the rotor is made of a metal material.

Preferably, the rotor is fixed between the two cover plates, and the edges of the two cover plates protrude out of the highest point of the rack on the rotor.

Preferably, the cover plate is provided with heat dissipation windows which are uniformly arranged along the circumferential direction.

The utility model has the advantages that: the utility model discloses a set up the breach of being qualified for the next round of competitions in the pivot, can be convenient draw forth after passing the apron with the lead-out wire on the stator, compare with prior art, both can not arouse the damage because of handling the pivot tip, also make things convenient for the installation of apron, can not lead to when the apron is installed because the cable does not have the space and is worn and torn, when having improved the qualification rate of product, also reduced the installation time of product, improved product production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 ~ 2 is a schematic diagram of the structure of two kinds of motor stator outgoing lines in the prior art;

fig. 3 is an exploded schematic view of a motor for fitness equipment according to an embodiment of the present invention;

FIG. 4 is a front view of the rotating shaft in the embodiment of the present invention;

fig. 5 is a left side view of fig. 4 in an embodiment of the present invention;

FIG. 6 is a perspective view of the rotating shaft in the embodiment of the present invention;

fig. 7 is a perspective view of the motor for fitness equipment in the embodiment of the present invention.

Reference numerals: 10-rotating shaft, 11-outlet notch, 12-guide piece fixing surface, 20-stator, 30-rotor, 40-bearing, 50-cover plate and 51-heat dissipation window.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The motor for the fitness equipment as shown in fig. 3 comprises: the rotating shaft 10, the stator 20, the rotor 30, the bearing 40 and the cover plate 50;

the rotating shaft 10 is fixed at the axial center of the stator, and the stator 20 is provided with a leading-out wire; the bearing 40 is sleeved at two ends of the rotating shaft 10, the cover plates 50 are arranged at two sides of the stator 20 and penetrate through the rotating shaft 10 to be sleeved on the bearing 40, and the rotor 30 is fixed on the outer ring of the stator 20 through the two cover plates 50;

the rotating shaft 10 is provided with an outlet notch 11 on at least one side of the stator 20, and the outlet notch 11 is formed by cutting from one end of the rotating shaft 10 along the axial direction and is used for leading out an outlet wire of the stator 20 to the outer side of the cover plate 50. As shown in fig. 3, the lead wires of the stator 20 are gathered at the center position, since the middle part of the rotating shaft 10 is cylindrical and one piece is cut off at the side surface of the cylinder, the lead wires are led out from the gap between the center of the stator 20 and the lead wire gap 11 of the rotating shaft 10, the lead wires are not worn, and when the bearing 40 and the cover plate 50 pass through the rotating shaft 10, since the lead wire gap 11 can accommodate the lead wires, the central holes of the bearing 40 and the cover plate 50 are not worn to the lead wires, the probability that the lead wires are worn out is reduced, compared with the previous way that the lead wires need to be extruded for installation, a lot of time is reduced, and the production efficiency of the product is improved.

Since the rotating shaft 10 serves as a fixing part of the whole motor and has high strength requirement, in order to ensure the strength of the rotating shaft 10, the depth of the outlet notch 11 along the radial direction of the rotating shaft 10 is smaller than the radius length of the rotating shaft 10. In addition, as shown in fig. 4 and 5, both ends of the rotating shaft 10 are further provided with fixing planes and fastening threads for preventing the rotating shaft 10 from rotating and falling off when the rotating shaft 10 is fixed.

Further, the length of the outlet notch 11 along the axial direction of the rotating shaft 10 is less than half of the length of the rotating shaft 10. Since the lead wire of the stator 20 only needs to be led out from one end of the rotating shaft 10, the length of the lead-out notch 11 should not be too long.

After the cable is led out, in order to prevent the cover plate 50 from generating friction with the outgoing line when rotating and damaging the outgoing line, the rotating shaft 10 is further provided with a cable guide fixing surface 12, the cable guide fixing surface 12 is arranged in parallel with the axial plane of the outgoing line notch 11, and the guide fixing surface 12 is provided with a fixing hole for fixing the cable guide. The cable guide is a part which is sleeved on the rotating shaft 10 and used for fixing the outgoing line on the rotating shaft 10, and the cable guide fixing surface 12 is arranged on the rotating shaft 10 and is convenient for installation of the cable guide.

As a preferred embodiment, with reference to fig. 3, the rotor 30 has a ring gear structure, and the side surface of the rotor 30 is provided with holes corresponding to the circumferential edge of the cover plate 50 for fixing the rotor 30 to the cover plate 50. The gear ring structure of the rotor 30 is used as a driving piece of the fitness equipment, the gear ring is matched with the synchronous belt, and the rotation of the rotor 30 drives the equipment connected with the other end of the synchronous belt to rotate.

The utility model discloses an inventor discovers in the actual manufacturing, by injection moulding's ring gear when the shaping, and the hole site fixed with apron 50 influences subsequent installation owing to be heated and can take place the skew, in order to overcome above-mentioned problem, the utility model discloses a rotor 30 is made by metal material, and is concrete, can be for iron, copper, aluminium and various known alloy material cutting or cast shaping.

When the motor drives the synchronous belt to rotate, in order to prevent the synchronous belt from deviating and falling off in the direction perpendicular to the conveying direction, as shown in fig. 7, the rotor 30 is fixed between two cover plates 50, and the edges of the two cover plates protrude out of the highest point of the rack on the rotor 30. That is, after the timing belt is mounted on the rotor 30, the side wall of the timing belt is blocked by the side wall of the cover plate 50, thereby preventing the lateral deviation of the timing belt and ensuring the effective operation of the machine.

Because the stator 20 inside the motor is composed of windings, after the stator is electrified, the windings can generate a large amount of heat, in order to timely dissipate heat and ensure the normal operation of the motor, the cover plate 50 is provided with heat dissipation windows 51, and the heat dissipation windows 51 are uniformly arranged along the circumferential direction. In the field of fitness equipment, the motor cannot run on the land, and influence of factors such as accumulated water on the bottom surface and sundries does not need to be considered too much, so that the heat dissipation windows 51 are arranged near the winding and are uniformly distributed along the circumference, and heat of the winding on the stator 20 can be dissipated timely in the rotating process.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A motor for fitness equipment, comprising: the device comprises a rotating shaft (10), a stator (20), a rotor (30), a bearing (40) and a cover plate (50);

the rotating shaft (10) is fixed at the axial center of the stator, and an outgoing line is arranged on the stator (20); the bearing (40) is sleeved at two ends of the rotating shaft (10), the cover plates (50) are arranged at two sides of the stator (20) and penetrate through the rotating shaft (10) to be sleeved on the bearing (40), and the rotor (30) is fixed on the outer ring of the stator (20) through the two cover plates (50);

the rotating shaft (10) is arranged on at least one side of the stator (20) and provided with an outlet notch (11), the outlet notch (11) is formed by axially cutting one end of the rotating shaft (10) and is used for leading out an outlet wire of the stator (20) to the outer side of the cover plate (50).

2. The motor for fitness apparatus according to claim 1, wherein the depth of the wire outlet notch (11) along the radial direction of the rotating shaft (10) is smaller than the length of the radius of the rotating shaft (10).

3. The motor for fitness apparatus according to claim 2, wherein the length of the wire outlet notch (11) along the axial direction of the rotating shaft (10) is less than half of the length of the rotating shaft (10).

4. The motor for fitness equipment according to claim 1, wherein the rotating shaft (10) is further provided with a cable guide fixing surface (12), the cable guide fixing surface (12) is parallel to the axial plane of the wire outlet notch (11), and the guide fixing surface (12) is provided with a fixing hole for fixing the cable guide.

5. The motor for fitness apparatus according to claim 1, wherein the rotor (30) is in a gear ring structure, and holes corresponding to the circumferential edge of the cover plate (50) are provided on the side surface of the rotor (30) for fixing the rotor (30) on the cover plate (50).

6. An electric machine for fitness apparatus according to claim 5, wherein the rotor (30) is made of a metallic material.

7. An electric machine for fitness apparatus according to claim 5, wherein the rotor (30) is fixed between two cover plates (50), the edges of which protrude from the highest point of the rack on the rotor (30).

8. The motor for fitness equipment according to claim 1, wherein the cover plate (50) is provided with heat dissipation windows (51), and the heat dissipation windows (51) are uniformly arranged along the circumferential direction.