Swing mechanism

Abstract

The utility model relates to the technical field of mechanical swing, and discloses a swing mechanism which comprises a support, a swing rod and a driving motor, one side of the swing rod is rotatably connected with the support, the swing plane of the swing rod is parallel to the surface of the support, the other side of the swing rod is provided with the driving motor, the driving motor is fixedly connected to the support, and the driving motor is provided with a motor rotating shaft. The side, away from the driving motor, of the rotating disc is provided with an eccentric shaft eccentric to the motor rotating shaft, the side, close to the eccentric shaft, of the swing rod is provided with a sliding hole perpendicular to the swing plane of the swing rod, a sliding column is arranged in the sliding hole in a sliding mode, and the side wall of the sliding column is provided with a shaft hole perpendicular to the axis of the sliding column. The end, opposite to the eccentric shaft, of the swing rod is provided with a mounting hole communicated with the sliding hole, and the eccentric shaft penetrates through the mounting hole and is embedded into the shaft hole. The swing mechanism can achieve reciprocating swing of the swing rod, and is small in structure, convenient to install and debug, low in noise, stable and reliable in swing and long in service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical swing technical field especially, a swing mechanism. BACKGROUND

[0002] Servo drive swing mechanism is often used on instruments, meters, small computers and other equipment. The previous solution is often to realize the swing work of the executing part through the swing structure by the motor. Since the components of the existing swing structure are relatively complex, the combination is relatively large in size, is not convenient for miniaturization of the swing mechanism, the noise generated by the movement between the components is relatively large, the user experience is relatively poor, the assembly precision between the components is relatively high, and the installation and maintenance cost is relatively high. SUMMARY

[0003] The utility model provides a swing mechanism, this swing mechanism can realize the arc reciprocating swing or linear reciprocating swing of swing lever, and the structure is small and exquisite, convenient to install and debug, low noise, swing is stable and reliable, and long service life.

[0004] The above-mentioned purpose of the utility model is realized by the following technical scheme:

[0005] A swing mechanism, comprising a support, a swing lever and a drive motor, one side of the swing lever is rotationally connected with the support, the swing plane of the swing lever is parallel to the surface of the support, the other side of the swing lever is provided with the drive motor, the drive motor is fixedly connected on the support, a motor rotating shaft is arranged on the drive motor, the motor rotating shaft is fixedly connected with a rotating disc, the side of the rotating disc away from the drive motor is provided with an eccentric shaft eccentric to the motor rotating shaft, the side of the swing lever close to the eccentric shaft is provided with a sliding hole perpendicular to the swing plane of the swing lever, a sliding column is slidably arranged in the sliding hole, an axial hole is arranged on the side wall of the sliding column and perpendicular to the axis of the sliding column, the end of the swing lever opposite to the eccentric shaft is provided with a mounting hole communicated with the sliding hole, and the eccentric shaft passes through the mounting hole and is embedded in the axial hole.

[0006] The above-mentioned swing mechanism, wherein the swing lever is rotationally connected with a swing shaft, and the swing shaft is fixedly connected with the support and perpendicular to the swing plane of the swing lever.

[0007] The above-mentioned swing mechanism, wherein an adjusting washer is sleeved on the swing shaft between the support and the swing lever, an adjusting nut is threadedly connected with the end of the swing shaft, and a baffle and a spring are sequentially sleeved on the swing shaft between the swing lever and the adjusting nut.

[0008] The above-mentioned swing mechanism, wherein the swing lever, the sliding column, the rotating disc and the swing shaft are all engineering plastics.

[0009] The above-mentioned swing mechanism, wherein the rotating disc and the swing lever are integrally formed.

[0010] The above-mentioned swing mechanism, wherein a motor support is arranged on the support, and the drive motor is fixedly connected on the motor support.

[0011] In the above-mentioned swing mechanism, a necked connection portion is provided at one end of the swing rod away from the drive motor.

[0012] The above-mentioned swing mechanism also includes a horizontal swing mechanism, which includes a connecting part with an inwardly recessed strip-shaped slide groove, the length direction of the slide groove is arranged along the length direction of the swing rod, and a linear slide rail perpendicular to the motor shaft is provided on the support below the connecting part, a slider is provided on the linear slide rail, and a slide rod perpendicular to the support is provided on the slider, and the slide rod is embedded in the slide groove.

[0013] In summary, the beneficial technical effects of the present invention are:

[0014] The utility model comprises a swing arm rotatably connected to a support. One side of the swing arm is provided with a drive motor fixedly connected to the support. The drive motor is provided with a motor shaft, which is fixedly connected to a rotating disk. The other side of the rotating disk is provided with an eccentric shaft eccentric to the motor shaft. The swing arm, near the eccentric shaft, has a sliding hole perpendicular to the swing arm's swinging plane. A sliding post is slidably mounted within the sliding hole. The side wall of the sliding post has an axial hole perpendicular to its axis. The end of the swing arm opposite the eccentric shaft is provided with a mounting hole connected to the sliding hole. The eccentric shaft passes through the mounting hole and is embedded in the axial hole. This swing mechanism can achieve arc-shaped reciprocating swing on one side of the swing arm. By providing a horizontal swing mechanism, the slider connected to the swing arm can achieve linear reciprocating swing. This swing mechanism has a compact structure, is easy to install and debug, has low noise, swings smoothly and reliably, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic cross-sectional view of the first embodiment of the present invention;

[0016] Figure 2 yes Figure 1 Side view of;

[0017] Figure 3 This is a schematic diagram of the swing structure of the swing rod in the first embodiment of the present utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the second embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the swing structure of the swing rod in the second embodiment of the present utility model;

[0020] Figure 6 yes Figure 5 A magnified view of part A;

[0021] Figure 7 This is a schematic diagram of the swing arm structure of the second embodiment of the present utility model.

[0022] As shown in the figure, 1. support; 2. rocker arm; 21. sliding hole; 22. mounting hole; 23. connecting part; 3. driving motor; 31. motor shaft; 4. rotating disk; 5. eccentric shaft; 6. sliding column; 61. shaft hole; 7. rocker shaft; 71. adjusting gasket; 72. adjusting nut; 73. baffle; 74. spring; 8. horizontal swing mechanism; 81. slide groove; 82. linear slide rail; 83. slider; 84. slide rod; 9. motor support. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-7 The utility model is described in further detail.

[0024] Example 1, as Figure 1 、 2 As shown, a swing mechanism includes a support 1, a rocker arm 2 and a drive motor 3. One side of the rocker arm 2 is rotatably connected to the support 1, and the swinging plane of the rocker arm 2 is parallel to the surface of the support 1. The other side of the rocker arm 2 is provided with a drive motor 3, which is fixedly connected to the support 1. The drive motor 3 is provided with a motor shaft 31, and the motor shaft 31 is fixedly connected to a rotating disk 4. The side of the rotating disk 4 away from the drive motor 3 is provided with an eccentric shaft 5 eccentric to the motor shaft 31. A sliding hole 21 perpendicular to the swing plane of the rocker arm 2 is provided on the side of the rocker arm 2 close to the eccentric shaft 5, and a sliding column 6 is slidably arranged in the sliding hole 21. An axial hole 61 perpendicular to the axis of the sliding column 6 is provided on the side wall of the sliding column 6. The end of the rocker arm 2 opposite to the eccentric shaft 5 is provided with a mounting hole 22 connected to the sliding hole 21, and the eccentric shaft 5 passes through the mounting hole 22 and is embedded in the axial hole 61.

[0025] The end of the swing rod 2 away from the drive motor 3 is provided with a necked connection portion 23. The connection portion 23 is connected to the actuator that needs to swing back and forth to achieve the corresponding function. The actuator can be a toothbrush, a blade, etc.

[0026] like Figure 3 As shown, when the drive motor 3 rotates, the motor shaft 31 drives the rotating disk 4 to rotate, and the rotating disk 4 drives the eccentric shaft 5 to rotate in a circle on the rotating disk 4. The rotation of the eccentric shaft 5 synchronously drives the slide post 6 to slide along the slideway in the slide hole 21 and rotate on its own. In this process, the slide post 6 drives the rocker arm 2 to swing back and forth with the rocker shaft 7 as the axis, thereby realizing the arc-shaped reciprocating swing of the actuator connected to the connecting part 23.

[0027] The pendulum rod 2 is rotatably connected to a pendulum shaft 7 , which is fixed to the support 1 and perpendicular to the swing plane of the pendulum rod 2 .

[0028] like Figure 2As shown, to ensure the smooth swing of the pendulum rod 2 and the precision of the installation of the motor shaft 31 and the slide 6, an adjustment washer 71 is installed on the pendulum shaft 7 between the support 1 and the pendulum rod 2. The distance between the pendulum rod 2 and the support 1 plane can be adjusted by adjusting the washer 71 to ensure that the center of the mounting hole 22 coincides with the axis of the motor shaft 31, preventing interference between the eccentric shaft 5 and the pendulum rod 2 during rotation, and ensuring smooth reciprocating swing of the pendulum rod 2. The end of the pendulum shaft 7 is threadedly connected to an adjustment nut 72. A stopper 73 and a spring 74 are installed on the pendulum shaft 7 between the pendulum rod 2 and the adjustment nut 72 in sequence. The elastic force of the spring 74 can be adjusted by adjusting the adjustment nut 72. The spring 74 always applies pressure to the pendulum rod 2, preventing the pendulum rod 2 from moving along the axial direction of the pendulum shaft 7 during swinging, and ensuring the smooth reciprocating swing of the pendulum rod 2.

[0029] The pendulum 2, slide 6, rotating disk 4, and pendulum shaft 7 are all made of engineering plastics. The use of engineering plastics provides excellent self-lubrication during the swing of the pendulum 2, eliminating the need for additional lubricant. This extends the product's lifespan and reduces noise during movement.

[0030] The rotating disk 4 and the swing shaft 7 are integrally formed.

[0031] A motor support 9 is provided on the support 1 , and the drive motor 3 is fixedly connected to the motor support 9 .

[0032] like Figure 4-7 As shown, the difference between the second embodiment and the first embodiment is that the second embodiment further includes a horizontal swing mechanism 8 .

[0033] The horizontal swing mechanism 8 of the second embodiment includes a strip-shaped slide groove 81 that is recessed inwardly on the connecting portion 23. The slide groove 81 can be a groove that passes through the connecting portion 23, or a recessed groove on the side opposite to the support 1 of the connecting portion 23. The length direction of the slide groove 81 is arranged along the length direction of the rocker arm 2. A linear slide rail 82 that is perpendicular to the axis of the motor shaft 31 is provided on the support 1 below the connecting portion 23. A slider 83 is slid on the linear slide rail 82. A slide rod 84 that is perpendicular to the support 1 is provided on the slider 83. The slide rod 84 is embedded in the slide groove 81.

[0034] By setting the horizontal swing mechanism 8 and connecting the actuator to the slider 83, the linear reciprocating motion of the actuator can be achieved. The actuator can be a moving blade of a clipper, a shear blade, etc.

[0035] like Figure 5 、 6As shown, when the drive motor 3 is working, the rotating disk 4 drives the eccentric shaft 5 to rotate in a circle on the rotating disk 4, and the rotation of the eccentric shaft 5 synchronously drives the slide column 6 to slide in the slide hole 21 and rotate on its own, and the swing of the slide column 6 drives the rocker arm 2 to swing back and forth with the rocker shaft 7 as the axis, and then the swing of the slide groove 81 on the connecting part 23 drives the slide rod 84 embedded therein to slide in the slide groove 81, and drives the slider 83 to slide on the linear slide rail 82, thereby realizing the linear reciprocating swing of the actuator connected to the slider 83.

[0036] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A swing mechanism, comprising a support, a swing rod and a drive motor, characterized in that: One side of the rocker arm is rotatably connected to the support, the swinging plane of the rocker arm is parallel to the surface of the support, and a driving motor is provided on the other side of the rocker arm, and the driving motor is fixedly connected to the support, and a motor shaft is provided on the driving motor, and the motor shaft is fixedly connected to the rotating disk, and an eccentric shaft is provided on the side of the rotating disk away from the driving motor and eccentric to the motor shaft, and a sliding hole perpendicular to the swinging plane of the rocker arm is provided on the side of the rocker arm close to the eccentric shaft, and a sliding column is slidably arranged in the sliding hole, and an axial hole perpendicular to its axis is provided on the side wall of the sliding column, and a mounting hole connected to the sliding hole is provided at the end of the rocker arm opposite to the eccentric shaft, and the eccentric shaft passes through the mounting hole and is embedded in the axial hole.

2. The swing mechanism according to claim 1, characterized in that: The swing rod is rotatably connected to a swing shaft, which is fixed to the support and perpendicular to the swing plane of the swing rod.

3. The swing mechanism according to claim 2, characterized in that: An adjusting gasket is sleeved on the swing shaft between the support and the swing rod, the end of the swing shaft is threadedly connected to the adjusting nut, and a blocking piece and a spring are sleeved on the swing shaft between the swing rod and the adjusting nut in sequence.

4. The swing mechanism according to claim 1, wherein: The rotating disk and the rocker arm are integrally formed.

5. The swing mechanism according to claim 1, characterized in that: A motor support is provided on the support, and the drive motor is fixedly connected to the motor support.

6. The swing mechanism according to claim 1, characterized in that: The pendulum rod, sliding column, rotating disk and pendulum shaft are all made of engineering plastics.

7. The swing mechanism according to claim 1, characterized in that: The end of the rocker arm away from the driving motor is provided with a necked connection portion.

8. The swing mechanism according to claim 7, characterized in that: It also includes a horizontal swing mechanism, which includes an inwardly concave strip-shaped slide groove provided on the connecting part, the length direction of the slide groove is set along the length direction of the rocker arm, a linear slide rail perpendicular to the motor shaft is provided on the support below the connecting part, a slider is provided on the linear slide rail, a slide rod is provided on the slider perpendicular to the support, and the slide rod is embedded in the slide groove.

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