CN218940858U

CN218940858U - Double-fixing-seat push-pull mechanism of external brushless motor

Info

Publication number: CN218940858U
Application number: CN202222932925.2U
Authority: CN
Inventors: 郑胜巨
Original assignee: Guangdong Wanrui Electromechanical Technology Co ltd
Current assignee: Guangdong Wanrui Electromechanical Technology Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-04-28
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses a double-fixing-seat push-pull mechanism of an external brushless motor, which comprises: base, push rod mechanism and outer brushless motor, push rod mechanism are including rotationally installing in the first pivot of base and the first push rod of first pivot of cover, and first pivot rotation can promote first push rod, and outer brushless motor is including fixed mounting in the axis body portion of base, fixed mounting in the inner rotor of axis body portion and rotationally install in the external rotor of axis body portion, and the equal fixed mounting in the base of two tip of axis body portion, external rotor and first pivot transmission are connected. Compared with the prior art, because the two ends of the shaft body are fixedly arranged on the base, after the shaft body is in transmission connection with the first rotating shaft, the stress on the two sides of the shaft body is balanced, and the shaft body cannot be bent due to unbalanced stress during transmission operation, so that the service life and the use reliability are improved.

Description

Double-fixing-seat push-pull mechanism of external brushless motor

Technical Field

The utility model relates to the technical field of transmission devices, in particular to a double-fixing-seat push-pull mechanism of an external brushless motor.

Background

The vibration equipment is common body-building equipment for building up the body, and the structure of vibration equipment is various, and during the in-service use, the user lies on or leans on the vibration equipment, realizes the vibration impact to the user with the help of the reciprocating motion of vibration equipment.

In the prior art, a transmission device applied to vibration equipment is generally composed of a motor and a push rod mechanism, and a rotating shaft of the motor drives the push rod mechanism, so that the vibration equipment can vibrate. Specifically, the motor is in transmission connection with the push rod mechanism, the rotating shaft of the motor is connected with the driving wheel, the driving wheel is arranged in the push rod mechanism, and the two driving wheels are connected with the belt, so that the rotating shaft of the motor rotates to drive the push rod mechanism to work. The inventor finds that the rotating shaft of the motor is easy to bend after a period of use because the rotating shaft of the motor is driven by a single-side stress transmission push rod mechanism to work, and the service life is short; and the transmission device cannot be used normally due to severe conditions, and the reliability is poor.

Therefore, a new technical solution is needed to solve the above problems.

Disclosure of Invention

In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and its main objective is to provide a dual-fixing seat push-pull mechanism of an external brushless motor, which effectively solves the problem that the rotation shaft is easy to bend in the transmission connection between the motor and the push rod mechanism in the prior art, thereby improving the service life and the reliability.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a double-fixed seat push-pull mechanism of an external brushless motor, comprising:

a base;

the push rod mechanism comprises a first rotating shaft rotatably arranged on the base and a first push rod sleeved on the first rotating shaft, and the first rotating shaft can rotate to push the first push rod;

the outer rotary brushless motor comprises a shaft body fixedly mounted on the base, an inner rotor fixedly mounted on the shaft body and an outer rotor rotatably mounted on the shaft body, wherein two end parts of the shaft body are fixedly mounted on the base, and the outer rotor is in transmission connection with the first rotating shaft.

The application provides a pair of two fixing base push-and-pull mechanism of outer brushless motor's beneficial effect lies in: compared with the prior art, through arranging the external rotating brushless motor, the two ends of the shaft body are fixedly arranged on the base, and the external rotor is in transmission connection with the first rotating shaft, so that the first push rod is driven to work to push the corresponding device to generate vibration; because the two ends of the shaft body are fixedly arranged on the base, after the shaft body is in transmission connection with the first rotating shaft, the stress on the two sides of the shaft body is balanced, and the shaft body cannot be bent due to unbalanced stress during transmission operation, so that the service life and the use reliability are improved.

Further, the base is provided with two first supporting portions, and two first supporting portions are provided with first installation concave positions for rotatably installing the first rotating shaft.

Further, the first mounting concave position is provided with a first bearing, and the end part of the first rotating shaft is mounted on the first bearing.

Further, the first rotating shaft is provided with an eccentric shaft body, and one end of the first push rod is provided with a first shaft hole for the eccentric shaft body to be inserted.

Further, the other end of the first push rod is provided with two connecting arms, the two connecting arms are arranged at left and right intervals, and each connecting arm is provided with a connecting hole penetrating through the left side surface and the right side surface of the connecting arm.

Further, the base is provided with two second supporting parts which are arranged at left and right intervals, and the second supporting parts are provided with second installation concave positions; the shaft body extends leftwards and rightwards and is longer than the length of the outer rotor, and the end part of the shaft body is arranged in the second installation concave position.

Further, the end part of the shaft body is provided with the soft rubber sleeve, and when the end part of the shaft body is arranged at the second installation concave position, the soft rubber sleeve abuts against the peripheral side surface of the second installation concave position.

Further, the soft rubber sleeve fixing device further comprises a fixing plate, wherein the fixing plate is arranged on the second supporting part and located at the position of the second installation concave position, and the fixing plate is used for pressing the soft rubber sleeve.

Compared with the prior art, the external rotating brushless motor is adopted, so that the shaft body part can be fixedly arranged in the second installation concave position, and then the external rotor is in transmission connection with the first rotating shaft; therefore, the flexible rubber sleeve is arranged on the shaft body, the shaft body is arranged in the second installation concave position through the flexible rubber sleeve, so that the installation operation of the external brushless motor can be completed, and the installation braiding is simpler; because the during operation of outer brushless motor can produce the vibration, consequently can provide the absorbing effect through this flexible gum cover to avoid because of outer brushless motor because of self vibration, the circumstances that leads to it to appear not hard up improves outer brushless motor's installation fastness.

Further, the first belt pulley is installed to first pivot, and the second belt pulley is installed to the external rotor, is connected with the belt between first belt pulley and the second belt pulley.

Further, the two ends of the shaft body are provided with at least two first planes which are arranged in parallel, and the second installation concave position is provided with at least two second planes which are arranged in parallel.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a push-pull mechanism with double fixing seats for an external brushless motor according to an embodiment of the present application;

FIG. 2 is a schematic view of another perspective view of a push-pull mechanism with double fixing seats for an external brushless motor shown in FIG. 1;

FIG. 3 is an exploded view of a dual anchor push-pull mechanism of the external brushless motor shown in FIG. 1;

fig. 4 is an enlarged view of part a of a double-fixing-seat push-pull mechanism of the external brushless motor shown in fig. 1.

Wherein, each reference sign in the figure:

10. a base; 11. a first support portion; 111. the first installation concave position; 112. a first bearing; 12. a second supporting part; 121. the second installation concave position; 122. a second plane; 13. a fixing plate;

20. a push rod mechanism; 21. a first rotating shaft; 211. an eccentric shaft body; 212. a first pulley; 22. a first push rod; 221. a first shaft hole; 222. a connecting arm; 223. a connection hole;

30. an external brushless motor; 31. a shaft body; 311. a soft rubber sleeve; 312. a first plane; 32. an outer rotor; 321. a second pulley;

40. a belt.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

Referring to fig. 1 to 4, a dual-fixing-seat push-pull mechanism of an external brushless motor according to an embodiment of the present application will be described. The double-fixing-seat push-pull mechanism of the external brushless motor comprises: base 10, push rod mechanism 20 and outer brushless motor 30.

The push rod mechanism 20 comprises a first rotating shaft 21 rotatably installed on the base 10 and a first push rod 22 sleeved on the first rotating shaft 21, and the first rotating shaft 21 can rotate to push the first push rod 22; the external brushless motor 30 includes a shaft portion 31 fixedly mounted on the base 10, an inner rotor (not shown) fixedly mounted on the shaft portion 31, and an outer rotor 32 rotatably mounted on the shaft portion 31, both end portions of the shaft portion 31 are fixedly mounted on the base 10, and the outer rotor 32 is in transmission connection with the first rotating shaft 21.

Specifically, through setting up the outer brushless motor, will the both ends fixed mounting of shaft body portion in the base, the external rotor is connected with first pivot transmission, thus drive first push rod work promote corresponding device and produce the vibration; because the two ends of the shaft body are fixedly arranged on the base, after the shaft body is in transmission connection with the first rotating shaft, the stress on the two sides of the shaft body is balanced, and the shaft body cannot be bent due to unbalanced stress during transmission operation, so that the service life and the use reliability are improved.

In the embodiment of the present application, the base 10 is provided with two first supporting portions 11, and both the two first supporting portions 11 are provided with first mounting recesses 111 for rotatably mounting the first rotating shaft 21. The first mounting recess 111 is mounted with a first bearing 112, and an end of the first rotating shaft 21 is mounted to the first bearing 112. The first rotary shaft 21 is provided with an eccentric shaft body 211, and one end of the first push rod 22 is provided with a first shaft hole 221 for the eccentric shaft body 211 to be inserted. In actual use, the eccentric shaft body 211 is located in the first shaft hole 221, and then the other end of the first push rod 22 is connected to a component to be vibrated, and when the first rotating shaft 21 rotates, the eccentric shaft body 211 can be synchronously rotated, so that the first push rod 22 is pushed to realize regular displacement, and the first push rod 22 can push the corresponding component to vibrate.

On the other end of the first push rod 22 is provided with two connecting arms 222, the two connecting arms 222 are arranged at left and right intervals, each connecting arm 222 is provided with a connecting hole 223 penetrating through the left and right sides of the connecting arm 222, and the connecting holes 223 are used for allowing parts such as bolts to penetrate through and be screwed on the parts needing to vibrate.

In the embodiment of the present application, the base 10 is mounted with two second supporting portions 12, the two second supporting portions 12 are arranged at left and right intervals, and the second supporting portions 12 are provided with second mounting concave positions 121; the shaft 31 extends laterally and longer than the outer rotor 32, and an end of the shaft 31 is mounted in the second mounting recess 121. Specifically, the end of the shaft body 31 is provided with the flexible rubber sleeve 311, and when the end of the shaft body 31 is installed at the second installation concave position 121, the flexible rubber sleeve 311 abuts against the peripheral side surface of the second installation concave position 121; the shaft body 311 is arranged in the second installation concave position 121 through the flexible rubber sleeve 311, so that vibration generated by the external brushless motor can be reduced, and the external brushless motor installed by adopting the structure is more firm in installation and can avoid the problem of looseness caused by long-time vibration.

The external brushless motor is characterized by further comprising a fixing plate 13, wherein the fixing plate 13 is arranged on the second supporting portion 12 and located at the position where the second installation concave portion 121 is located, the fixing plate 13 is used for pressing the soft rubber sleeve 311, and therefore the external brushless motor is simple to install. Meanwhile, at least two first planes 312 are disposed at two ends of the shaft body 31 in parallel, and at least two second planes 122 are disposed at the second mounting recess 121 in parallel, it is also understood that the cross section of the end of the shaft body 31 is square, and the cross section of the second mounting recess 121 is square, and the structure of the first planes 312 and the second planes 122 defines that the shaft body 31 is in a non-rotating state.

More specifically, the first rotary shaft 21 is provided with a first pulley 212, the outer rotor 32 is provided with a second pulley 321, and a belt 40 is connected between the first pulley 212 and the second pulley 321; the diameter of the first pulley 212 is greater than the diameter of the second pulley 321.

The foregoing description of the preferred embodiments of the present utility model has been provided for the purpose of illustrating the general principles of the present utility model and is not to be construed as limiting the scope of the utility model in any way. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model, and other embodiments of the present utility model as will occur to those skilled in the art without the exercise of inventive faculty, are intended to be included within the scope of the present utility model.

Claims

1. The utility model provides a two fixing base push-and-pull mechanism of outer brushless motor which characterized in that: comprising the following steps:

a base (10);

the push rod mechanism (20), the push rod mechanism (20) comprises a first rotating shaft (21) rotatably arranged on the base (10) and a first push rod (22) sleeved on the first rotating shaft (21), and the first rotating shaft (21) can rotate to push the first push rod (22);

the outer brushless motor (30), outer brushless motor (30) is including fixed mounting in shaft body portion (31) of base (10), fixed mounting in the inner rotor of shaft body portion (31) and rotatable outer rotor (32) of installing in shaft body portion (31), and both ends of shaft body portion (31) are fixed mounting in base (10), and outer rotor (32) are connected with first pivot (21) transmission.

2. The double-fixing-seat push-pull mechanism of an external brushless motor according to claim 1, wherein: the base (10) is provided with two first supporting parts (11), and the two first supporting parts (11) are provided with first installation concave positions (111) for rotatably installing the first rotating shaft (21).

3. The double-fixing-seat push-pull mechanism of an external brushless motor according to claim 2, wherein: the first mounting concave position (111) is provided with a first bearing (112), and the end part of the first rotating shaft (21) is mounted on the first bearing (112).

4. A double-fixing-seat push-pull mechanism of an external brushless motor according to claim 1, 2 or 3, wherein: the first rotating shaft (21) is provided with an eccentric shaft body (211), and one end of the first push rod (22) is provided with a first shaft hole (221) for the eccentric shaft body (211) to be inserted.

5. The double-fixing-seat push-pull mechanism of an external brushless motor according to claim 4, wherein: the other end of the first push rod (22) is provided with two connecting arms (222), the two connecting arms (222) are arranged at left and right intervals, and each connecting arm (222) is provided with a connecting hole (223) penetrating through the left side surface and the right side surface of the connecting hole.

6. The double-fixing-seat push-pull mechanism of an external brushless motor according to claim 1, wherein: the base (10) is provided with two second supporting parts (12), the two second supporting parts (12) are arranged at left and right intervals, and the second supporting parts (12) are provided with second installation concave positions (121);

the shaft body (31) extends leftwards and rightwards and is longer than the length of the outer rotor (32), and the end part of the shaft body (31) is mounted in the second mounting concave position (121).

7. The dual-fixed seat push-pull mechanism of an external brushless motor according to claim 6, wherein: and a soft rubber sleeve (311) is arranged at the end part of the shaft body (31), and when the end part of the shaft body (31) is arranged at the second installation concave position (121), the soft rubber sleeve abuts against the peripheral side surface of the second installation concave position.

8. The dual-fixed seat push-pull mechanism of an external brushless motor according to claim 7, wherein: the fixing device further comprises a fixing plate (13), the fixing plate (13) is arranged on the second supporting portion (12) and located at the position where the second installation concave position (121) is located, and the fixing plate (13) is used for pressing the soft rubber sleeve (311).

9. The double-fixing-seat push-pull mechanism of an external brushless motor according to claim 1, wherein: the first rotating shaft (21) is provided with a first belt pulley (212), the outer rotor (32) is provided with a second belt pulley (321), and a belt is connected between the first belt pulley (212) and the second belt pulley (321).

10. The double-fixing-seat push-pull mechanism of an external brushless motor according to claim 1, wherein: the two ends of the shaft body (31) are provided with at least two first planes (312) which are arranged in parallel, and the second installation concave position (121) is provided with at least two second planes (122) which are arranged in parallel.