CN214661825U

CN214661825U - High-precision circular motion transmission device

Info

Publication number: CN214661825U
Application number: CN202120692574.5U
Authority: CN
Inventors: 韩彦行; 刘隆
Original assignee: Shijiazhuang Jiayan Technology Co ltd
Current assignee: Shijiazhuang Jiayan Technology Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-11-09
Anticipated expiration: 2031-04-06

Abstract

The utility model discloses a high accuracy circular motion transmission, comprising a base plate, the top fixedly connected with backup pad of bottom plate, one side fixedly connected with driving motor of backup pad, driving motor's drive end fixedly connected with spliced pole, the one end fixedly connected with gear wheel of keeping away from driving motor of spliced pole, one side central authorities department of gear wheel rotates and is connected with the rocker, the one end of keeping away from the gear wheel of rocker rotates and is connected with the pinion, pinion and gear engagement, one side of being close to the rocker of pinion rotates and is connected with the connecting rod, the spacing slide of top fixedly connected with of bottom plate. The utility model discloses in, can remove the swing arm through connecting the rack, when having solved traditional simple crank rocker mechanism with swing arm reciprocating motion, the trouble of hard control swing arm has overcome the drawback that is located dead point position mechanical efficiency and reduces simultaneously.

Description

High-precision circular motion transmission device

Technical Field

The utility model relates to the field of mechanical structures, especially, relate to a high accuracy circular motion transmission.

Background

The particle moves on a circle with a certain point as the center and a radius of r, namely the motion of the particle is called 'circular motion' when the particle moves. It is one of the most common curvilinear motions. Such as the motor rotor, wheels, pulleys, etc., all move in a circular motion. The circular motion is divided into uniform circular motion and variable circular motion (such as rope/rod rotation ball in vertical plane, conical pendulum motion in vertical plane). In the circular motion, the most common and simplest is a uniform circular motion (since the velocity is a vector, the uniform circular motion is actually a uniform circular motion, and a Transmission device (Transmission device) transmits the power of a power device to an intermediate device such as a working mechanism.

In some power mechanical devices, it is often necessary to convert the rotary motion into reciprocating swing motion, and it is a common practice to use a motor to drive a crank-rocker mechanism, as disclosed in patent publication No. CN103144087, but the single crank-rocker structure is difficult to control because of the existence of a dead point position, and in some swing arm devices using a pure crank-rocker mechanism, the swing arm is mechanically inefficient and easy to damage when the swing arm is in the dead point position because of the existence of the dead point.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-precision circular motion transmission device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-precision circular motion transmission device comprises a bottom plate, wherein a supporting plate is fixedly connected to the top end of the bottom plate, a driving motor is fixedly connected to one side of the supporting plate, a connecting column is fixedly connected to the driving end of the driving motor, a large gear is fixedly connected to one end, far away from the driving motor, of the connecting column, a rocker is rotatably connected to the center of one side of the large gear, a small gear is rotatably connected to one end, far away from the large gear, of the rocker, the small gear is meshed with the large gear, a connecting rod is rotatably connected to one side, close to the rocker, of the small gear, a limiting slide way is fixedly connected to the top end of the bottom plate, a sliding block is slidably connected to the inside of the limiting slide way, the connecting rod is slidably connected with the sliding block, a connecting rack is fixedly connected to one side of the sliding block, the connecting rack penetrates through the limiting slide way and extends to the outside, a connecting rod is rotatably connected to one side of the supporting plate, one end of the connecting rod is fixedly connected with a swing arm.

Furthermore, the bottom end of the swing arm is provided with teeth meshed with the connecting rack.

Furthermore, the connecting rack is L-shaped, the top end of the bottom plate is provided with a groove, the inner bottom wall of the bottom plate is fixedly connected with a limiting frame, and the connecting rack is in sliding connection with the limiting frame.

Furthermore, the connecting rack is welded with the sliding block, and the limiting slide way is made of magnesium-aluminum alloy.

Furthermore, the connecting rod and the rocker are made of stainless steel.

The utility model has the advantages that:

the utility model discloses when using, meshing through the gear wheel that sets up and the pinion is when rocker and connecting rod are located dead point position mechanical efficiency and reduce, make the meshing of connecting rack and swing arm can not appear pausing for connecting rod power through the gear engagement transmission, promote the work efficiency of swing arm, the slider through setting up will connect the rack and drive the removal simultaneously, just so can remove the swing arm through connecting the rack, when having solved traditional simple crank rocker mechanism and making a round trip reciprocating motion with the swing arm, the trouble of hard control swing arm.

Connecting rack is L shape, the top of bottom plate is seted up slottedly, the interior diapire fixedly connected with of bottom plate is spacing, position through spacing with connecting rack is injectd, make the meshing transmission of connecting rack and swing arm more level and smooth stable, can promote the stability and the precision of swing arm, connecting rack and slider welding, spacing slide's material is magnesium aluminum alloy, the welding can ensure to connect more firm of connecting between rack and the slider, the magnesium aluminum alloy cost economic strength and the hardness that set up are big, can bear long-time use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is an installation view of the connecting rack of the present invention.

Illustration of the drawings:

1. a base plate; 2. a support plate; 3. a drive motor; 4. connecting columns; 5. a bull gear; 6. a rocker; 7. a pinion gear; 8. a connecting rod; 9. a limiting slide way; 10. a slider; 11. connecting the racks; 12. a connecting rod; 13. swinging arms; 14. a limiting frame.

Detailed Description

Fig. 1 to 3 show, relate to a high accuracy circular motion transmission device, including bottom plate 1, the top of bottom plate 1 is fixedly connected with backup pad 2, one side of backup pad 2 is fixedly connected with driving motor 3, the drive end of driving motor 3 is fixedly connected with spliced pole 4, the one end of spliced pole 4 far away from driving motor 3 is fixedly connected with gear wheel 5, one side central point of gear wheel 5 rotates and is connected with rocker 6, the one end of rocker 6 far away from gear wheel 5 rotates and is connected with pinion 7, pinion 7 and gear wheel 5 mesh, through the meshing of gear wheel 5 and pinion 7 provide the pivoted power when connecting rod 8 and rocker 6 rotate to the central line coincidence and make connecting rod 8 can overcome the influence that the dead point position brought, promote the work efficiency of swing arm 13, one side of pinion 7 near rocker 6 rotates and is connected with connecting rod 8, the top fixedly connected with of bottom plate 1 is limited slide 9, prescribes a limit to the swing range of swing arm 13 through the slide position of limited slide 9 with slider 10, the inside sliding connection of limited slide 9 has slider 10, connecting rod 8 and slider 10 sliding connection, one side fixedly connected with of slider 10 connects rack 11, connect rack 11 runs through limited slide 9 and extends to the outside, one side of backup pad 2 is rotated and is connected with connecting rod 12, the one end fixedly connected with swing arm 13 of connecting rod 12 can support swing arm 13 and prescribe a limit to the position of swing arm 13 through connecting rod 12.

When using, rotate big gear wheel 5 through driving motor 3 drive end, big gear wheel 5's rotation rotates rocker 6, rocker 6's rotation is through connecting rod 8 with slider 10 in spacing slide 9 removes, can remove the connecting rack 11 of connecting when slider 10 removes, connecting rack 11 rotates swing arm 13 this moment, the swing of swing arm 13 can be accomplished to the turned to and connecting rod 8's turned angle through control driving motor 3, when rocker 6 and connecting rod 8 rotate to the central line coincidence and meet the dead point position promptly, because of big gear wheel 5 and pinion 7 meshing, just so can rotate connecting rod 8 through the meshing transmission between the gear, just so can steady degree cross the dead point position of crank rocker mechanism, the mechanical efficiency of having guaranteed swing arm 13 has avoided connecting rod 8 and rocker 6's damage simultaneously.

In a further scheme, the bottom end of the swing arm 13 is provided with teeth meshed with the connecting rack 11, and the swing amplitude of the swing arm 13 can be controlled more easily through the meshing transmission of the connecting rack 11 and the swing arm 13.

In a further scheme, the connecting rack 11 is L-shaped, the top end of the bottom plate 1 is provided with a groove, the inner bottom wall of the bottom plate 1 is fixedly connected with a limiting frame 14, the connecting rack 11 is in sliding connection with the limiting frame 14, and the position of the connecting rack 11 is limited by the limiting frame 14, so that the meshing transmission of the connecting rack 11 and the swing arm 13 is smoother and more stable, and the stability and the precision of the swing arm 13 can be improved.

In the further scheme, connecting rack 11 and slider 10 welding, spacing slide 9's material is magnesium aluminum alloy, and the welding can ensure that connecting rack 11 and slider 10 are connected more firm, and the magnesium aluminum alloy cost economic strength and the hardness that set up are big, can bear long-time use.

In a further scheme, the connecting rod 8 and the rocker 6 are both made of stainless steel, so that the mechanical failure caused by rusting or low strength during high-strength movement is avoided.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A high accuracy circular motion transmission, includes bottom plate (1), its characterized in that: the top end of the bottom plate (1) is fixedly connected with a supporting plate (2), one side of the supporting plate (2) is fixedly connected with a driving motor (3), a driving end of the driving motor (3) is fixedly connected with a connecting column (4), one end of the connecting column (4) far away from the driving motor (3) is fixedly connected with a large gear (5), the center of one side of the large gear (5) is rotatably connected with a rocker (6), one end of the rocker (6) far away from the large gear (5) is rotatably connected with a small gear (7), the small gear (7) is meshed with the large gear (5), one side of the small gear (7) close to the rocker (6) is rotatably connected with a connecting rod (8), the top end of the bottom plate (1) is fixedly connected with a limiting slide way (9), the inner sliding of the limiting slide way (9) is connected with a sliding block (10), and the connecting rod (8) is slidably connected with the sliding block (10), one side fixedly connected with connecting rack (11) of slider (10), connecting rack (11) run through spacing slide (9) and extend to the outside, one side of backup pad (2) is rotated and is connected with connecting rod (12), the one end fixedly connected with swing arm (13) of connecting rod (12).

2. A high precision circular motion transmission device as claimed in claim 1, wherein: the bottom end of the swing arm (13) is provided with teeth meshed with the connecting rack (11).

3. A high precision circular motion transmission device as claimed in claim 1, wherein: the connecting rack (11) is L-shaped, the top end of the bottom plate (1) is provided with a groove, the inner bottom wall of the bottom plate (1) is fixedly connected with a limiting frame (14), and the connecting rack (11) is connected with the limiting frame (14) in a sliding mode.

4. A high precision circular motion transmission device as claimed in claim 1, wherein: the connecting rack (11) is welded with the sliding block (10), and the limiting slide way (9) is made of magnesium-aluminum alloy.

5. A high precision circular motion transmission device as claimed in claim 1, wherein: the connecting rod (8) and the rocker (6) are both made of stainless steel.