A connecting rocker arm with synchronous movement at both ends

Abstract

The present invention discloses a connecting rocker arm with synchronous movement at both ends, which includes a frame, a transmission mechanism, a driving end, a driven end and a driving end stepped shaft. The driving end includes a driving end gear train and a driving end cover plate, and the driven end includes a driven end bevel gear and a driven end cover plate. The driving end gear train is connected to the driving end stepped shaft and rotates under the action of the driving end stepped shaft. The transmission mechanism includes a main transmission shaft, a driven transmission shaft and a middle wheel adjusting mechanism. Bevel gears are provided at both ends of the main transmission shaft and the driven transmission shaft, and a bevel gear is provided at the end of the driving end stepped shaft. Power is transmitted through the meshing of the bevel gears between the main transmission shaft and the driving end stepped shaft and between the driven transmission shaft and the driven end bevel gear. The main transmission shaft and the driven transmission shaft are connected and power is transmitted through the middle wheel adjusting mechanism. The present invention is used for the rotating connecting arm of the flip-type opening and closing cover of mechanical equipment. The two ends of the rotating arm are respectively fixed on the equipment main body and the opening and closing cover, and can keep the upper cover moving smoothly during the rotation process.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical transmission, and particularly relates to a connecting rocker arm with synchronous movement at both ends, which is applied to the opening and closing transmission device of a drone hangar. Background Art

[0002] At present, with the development of domestic drone hangars, various drone hangars have emerged. Drone hangars mainly provide a stable outdoor storage environment and energy support for drones. The open-top hangar has the advantages of a compact structure, high sealing performance, and rapid operation because it does not have a lifting mechanism. However, the traditional flip-top type is prone to exposing the inside of the cover plate, which easily causes the sensors and circuits inside the cover plate to age, and has certain requirements for the strength of the cover plate itself, making the design troublesome. Therefore, being able to keep the cover plate in a translational state without rotation during the opening process can not only maintain the internal cleanliness but also avoid the influence of direct sunlight on the sensors and circuits, simplifying the design. At the same time, a meteorological sensor module that is not suitable for installation can also be installed on the cover plate to improve the integration. Therefore, it is necessary to design a rotary connecting rocker arm for connecting the cover plate and the main body to maintain the level of the cover plate. Summary of the Invention

[0003] In view of the above problems, the present invention provides a connecting rocker arm with synchronous movement at both ends, which is a rotating connecting arm for the flip-type opening and closing of mechanical equipment. Both ends of the rotating arm are respectively fixed to the equipment main body and the opening and closing cover, and can keep the upper cover moving smoothly during the rotation process, solving the technical problems that the traditional flip-type structure is prone to exposing the inside of the cover plate, easily causing the sensors and circuits inside the cover plate to age, and having certain requirements for the strength of the cover plate itself, making the design troublesome.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A connecting rocker arm with synchronous movement at both ends includes a frame, a transmission mechanism, a driving end, a driven end, and a driving end stepped shaft. The driving end includes a driving end gear train and a driving end cover plate, and the driven end includes a driven end bevel gear and a driven end cover plate. The driving end gear train is connected to the driving end stepped shaft and rotates under the action of the driving end stepped shaft. The transmission mechanism includes a main transmission shaft, a secondary transmission shaft, and a middle gear adjustment mechanism. Bevel gears are provided at both ends of the main transmission shaft and the secondary transmission shaft, and a bevel gear is provided at the end of the driving end stepped shaft. Power is transmitted through the meshing of the bevel gears between the main transmission shaft and the driving end stepped shaft and between the secondary transmission shaft and the driven end bevel gear, and the main transmission shaft and the secondary transmission shaft are connected and power is transmitted through the middle gear adjustment mechanism.

[0006] As a further technical solution, the driving end is connected to the equipment main body, and the driven end is connected to the equipment cover plate.

[0007] As a further technical solution, the active end gear train includes a sun gear in the middle, planet gears outside the sun gear, and an internal gear outside the planet gears. The planet gears are respectively meshed with the sun gear and the internal gear.

[0008] As a further technical solution, the sun gear is connected to the active end stepped shaft by a key, and the active end stepped shaft is connected to the driving motor. The sun gear drives the planet gears, which in turn drive the internal gear to rotate. The active end cover plate is arranged on the end face of the internal gear.

[0009] As a further technical solution, the number of the planet gears is 3. The planet gears are fixed by a planet gear fixing plate, and the planet gear fixing plate is fixed on the equipment main body. The planet gear fixing plate is tightly attached to the active end cover plate.

[0010] As a further technical solution, the middle wheel adjusting mechanism includes an adjusting knob, a threaded rod, a transmission shaft intermediate wheel, and an intermediate wheel fixed shaft. The intermediate wheel fixed shaft has an internal thread that cooperates with the threaded rod. The transmission shaft intermediate wheel is rotatably arranged at the lower end of the intermediate wheel fixed shaft. One end of the threaded rod is connected to the adjusting knob, and the other end is threadedly connected to the intermediate wheel fixed shaft. The adjusting knob is arranged outside the frame. A compression spring is also connected above the intermediate wheel fixed shaft, and the other end of the compression spring is fixed on the frame.

[0011] As a further technical solution, the main transmission shaft and the slave transmission shaft are respectively meshed with the transmission shaft intermediate wheel through bevel gears at one end to achieve transmission.

[0012] As a further technical solution, a transmission shaft support and an adjusting shaft conduit are arranged inside the frame. The main transmission shaft and the slave transmission shaft are rotatably arranged on the transmission shaft support, and the intermediate wheel fixed shaft is placed in the adjusting shaft conduit of the frame.

[0013] As a further technical solution, the driven end bevel gear and the driven end cover plate are fixed by threads, and the driven end cover plate and the equipment cover plate are connected by threads.

[0014] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0015] 1. The single-motor drive has high synchronism. One cover plate is driven by one motor, with high synchronism and greater safety.

[0016] 2. The structure is compact and has a large bearing capacity. The mechanical gear transmission can support a large mass and operates reliably.

[0017] 3. The installation is simple and convenient for debugging. It only needs to be fixed at both ends on the main body and the cover plate respectively, and the parallelism at both ends can be adjusted through the knob. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the overall structure of the present invention;

[0019] Figure 2 Front view of the overall structure of the present invention;

[0020] Figure 3 Schematic diagram of the sectional structure of the frame of the present invention;

[0021] Figure 4 Schematic diagram of the overall transmission mechanism of the present invention;

[0022] Figure 5 Schematic diagram of the structure of the driving end gear train of the present invention;

[0023] Figure 6 Schematic diagram of the structure of the driven end of the present invention;

[0024] Figure 7 Schematic diagram of the structure of the transmission shaft of the present invention;

[0025] Figure 8 Schematic diagram of the structure of the intermediate gear adjusting mechanism of the present invention;

[0026] Figure 9 Schematic diagram for explaining the gear transmission ratio of the structure of the present invention;

[0027] In the figure: 1. Frame; 11. Transmission shaft support; 12. Adjusting shaft conduit; 2. Driving end; 21. Driving end gear train; 211. Sun gear; 212. Planet gear; 213. Internal gear; 22. Driving end cover plate; 23. Planet gear fixing plate; 3. Driven end; 31. Driven end bevel gear; 32. Driven end cover plate; 4. Driving end stepped shaft; 5. Main transmission shaft; 6. Driven transmission shaft; 7. Middle gear adjusting mechanism; 71. Adjusting knob; 72. Threaded rod; 73. Transmission shaft intermediate gear; 74. Intermediate gear fixed shaft; 75. Compression spring; 8. Bevel gear. Specific embodiments

[0028] The technical solutions of the present invention will be clearly and completely described below through embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0029] As Figures 1-8 shown, a connecting rocker arm with synchronous movement at both ends includes a frame 1, a transmission mechanism, a driving end 2, a driven end 3, and a driving end stepped shaft 4. The driving end 2 is used to connect with the equipment main body, and the driven end 3 is used to connect with the equipment cover plate.

[0030] The driving end 2 of the present invention includes a driving end gear train 21 and a driving end cover plate 22, and the driven end 3 includes a driven end bevel gear 31 and a driven end cover plate 32. The driving end gear train 21 is connected to the driving end stepped shaft 4 and rotates under the action of the driving end stepped shaft 4. The transmission mechanism includes a main transmission shaft 5, a driven transmission shaft 6, and a middle gear adjustment mechanism 7. Both ends of the main transmission shaft 5 and the driven transmission shaft 6 are provided with bevel gears 8, and the end of the driving end stepped shaft 4 is also provided with a bevel gear 8. Power is transmitted between the main transmission shaft 5 and the driving end stepped shaft 4 and between the driven transmission shaft 6 and the driven end bevel gear 31 through the meshing of the bevel gears 8, and the main transmission shaft 5 and the driven transmission shaft 6 are connected and transmit power through the middle gear adjustment mechanism 7.

[0031] The driving end gear train 21 of the present invention includes a sun gear 211 in the middle, planet gears 212 outside the sun gear 211, and an internal gear 213 outside the planet gears 212. The planet gears 212 are respectively meshed with the sun gear 211 and the internal gear 213; the sun gear 211 is connected to the driving end stepped shaft 4 by a key, and the driving end stepped shaft 4 is connected to a driving motor. The sun gear 211 drives the planet gears 212 and then drives the internal gear 213 to rotate. The driving end cover plate 22 is arranged on the end face of the internal gear 213; the number of planet gears 212 is 3, and the planet gears 212 are fixed by a planet gear fixing plate 23, and the planet gear fixing plate 23 is fixed on the equipment main body, and the planet gear fixing plate 23 is tightly attached to the driving end cover plate 22.

[0032] The middle gear adjustment mechanism 7 of the present invention includes an adjustment knob 71, a threaded rod 72, a transmission shaft intermediate gear 73, and an intermediate gear fixing shaft 74. The intermediate gear fixing shaft 74 has an internal thread that cooperates with the threaded rod 72. The transmission shaft intermediate gear 73 is rotatably arranged at the lower end of the intermediate gear fixing shaft 74. One end of the threaded rod 72 is connected to the adjustment knob 71, and the other end is threadedly connected to the intermediate gear fixing shaft 74. The adjustment knob 71 is arranged outside the frame 1, and a compression spring 75 is also connected above the intermediate gear fixing shaft 74, and the other end of the compression spring 75 is fixed on the frame 1.

[0033] The main transmission shaft 5 and the driven transmission shaft 6 are respectively meshed with the transmission shaft intermediate gear 73 through the bevel gears 8 at one end to achieve power transmission.

[0034] In order to increase the stability of power transmission, a transmission shaft support 11 and an adjustment shaft conduit 12 are arranged inside the frame 1. The main transmission shaft 5 and the driven transmission shaft 6 are rotatably arranged on the transmission shaft support 11, and the intermediate gear fixing shaft 74 is placed in the adjustment shaft conduit 12 of the frame 1.

[0035] The driven end bevel gear 31 and the driven end cover plate 32 are fixed by threads, and the driven end cover plate 32 and the equipment cover plate are connected by threads.

[0036] The usage method of the connecting rocker arm with synchronous movement at both ends of the present invention is as follows:

[0037] Fix the active end 2 to the equipment main body by screws. The stepped shaft 4 of the active end can be connected to the driving motor through a coupling. The driven end 3 is fixed to the equipment cover plate by screws. After loosening the intermediate wheel 73 of the transmission shaft by adjusting the knob 71, the levelness of the equipment cover plate can be adjusted. After adjustment, tightening it with the adjusting knob 71 can maintain the unchanged levelness of the equipment cover plate. The horizontal opening and closing action of the equipment cover plate can be completed through the driving motor.

[0038] Specifically, as shown in the overall figure, it is an overall connecting rod structure with two parallel end faces. The structures of the active end 2 and the driven end 3 are different. The active end 2 is driven by a stepped shaft 4 of the active end. The stepped shaft 4 of the active end drives the sun gear 211 of the active end through a key. The sun gear 211 rotates around the axis driven by the stepped shaft 4 of the active end. A plurality of planet gears 212 are fixed to each other through a planet gear fixing plate 23. The planet gear fixing plate 23 is fixed to the equipment main body. The planet gears 212 drive the internal gear 213 to rotate. The internal gear 213 is fixed to the frame 1 of the swing arm. The rotation of the stepped shaft 4 of the active end drives the rotation of the internal gear 213 to realize the rotational movement of the connecting rocker arm around the stepped shaft 4 of the active end.

[0039] The stepped shaft 4 of the active end is connected to the bevel gear 8 at its end through a key to realize power transmission. This bevel gear 8 meshes with the bevel gear 8 at one end of the main transmission shaft 5. Power transmission is realized through the two bevel gears 8. The power transmission between the main transmission shaft 5 and the secondary transmission shaft 6 is realized through the intermediate wheel 73 of the transmission shaft of the intermediate wheel adjusting mechanism 7. The main transmission shaft 5 and the secondary transmission shaft 6 are installed on the transmission shaft support 11 of the frame 1. The transmission shaft support 11 is fixed to the frame 1 by screws. An intermediate wheel adjusting mechanism 7 is provided between the two transmission shafts to realize power transmission and change the movement direction. The intermediate wheel 73 of the transmission shaft is rotatably arranged on the axially movable intermediate wheel fixing shaft 74. The intermediate wheel fixing shaft 74 is placed in the adjusting shaft conduit 12. One end of the threaded rod 72 is connected to the inside of the intermediate wheel fixing shaft 74, and the other end is connected to the adjusting knob 71. The adjusting knob 71 is fixed to the frame 1. The axial movement of the intermediate wheel fixing shaft 74 in the adjusting shaft conduit 12 can be realized through the adjusting knob and the screw rod to adjust the meshing condition of the intermediate wheel. When pressing the adjusting knob 71, the intermediate wheel 73 of the transmission shaft is in a separated non-meshing state with the bevel gears 8 on both sides. At this time, the compression spring 75 is stretched. When the meshing state is required, loosen the adjusting knob 71, and it rebounds under the elastic force of the compression spring 75 and returns to the meshing state. In the non-meshing state, the active end and the driven end can be adjusted arbitrarily in rotation. In the meshing state, the active end and the driven end are interlocked with each other and have high synchronism.

[0040] When the driving end 2 inputs power, on the one hand, the internal gear 213 of the driving end 2 starts to rotate and the rotation direction is opposite to that of the stepped shaft 4 of the driving end. The internal gear 213 is fixedly connected to the frame 1, and the frame 1 starts to rotate around the stepped shaft 4 of the driving end along with the internal gear 213. On the other hand, through the power transmission of the bevel gear on the stepped shaft 4 of the driving end to the main transmission shaft 5 and the driven transmission shaft 6, the driven end rotates and the rotation direction and rotation speed are the same as those of the driving shaft, realizing that the relative direction of both ends remains unchanged when the connecting rocker rotates. Therefore, when the connecting rocker rotates a certain angle under the action of the power of the driving end, the equipment cover plate connected to the driven end rotates in the opposite direction by the same angle, so that the equipment cover plate can keep the upper cover moving smoothly during the rotation when opening and closing the cover.

[0041] Figure 9 The following is a schematic diagram of the gear transmission ratio structure of the structure of the present invention:

[0042]

[0043] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A connecting rocker arm with synchronous movement at both ends, characterized in that, it includes a frame (1), a transmission mechanism, a driving end (2), a driven end (3), and a driving-end stepped shaft (4). The driving end (2) includes a driving-end gear train (21) and a driving-end cover plate (22). The driven end (3) includes a driven-end bevel gear (31) and a driven-end cover plate (32). The driving-end gear train (21) is connected to the driving-end stepped shaft (4) and rotates under the action of the driving-end stepped shaft (4). The transmission mechanism includes a main transmission shaft (5), a secondary transmission shaft (6), and a middle-wheel adjusting mechanism (7). Conical gears (8) are provided at both ends of the main transmission shaft (5) and the secondary transmission shaft (6). A conical gear (8) is provided at the end of the driving-end stepped shaft (4). Power is transmitted through meshing of the conical gears (8) between the main transmission shaft (5) and the driving-end stepped shaft (4), and between the secondary transmission shaft (6) and the driven-end bevel gear (31). The main transmission shaft (5) and the secondary transmission shaft (6) are connected and power is transmitted through the middle-wheel adjusting mechanism (7); The middle-wheel adjusting mechanism (7) includes an adjusting knob (71), a threaded rod (72), a transmission-shaft intermediate wheel (73), and an intermediate-wheel fixed shaft (74). The intermediate-wheel fixed shaft (74) has an internal thread that mates with the threaded rod (72). The transmission-shaft intermediate wheel (73) is rotatably provided at the lower end of the intermediate-wheel fixed shaft (74). One end of the threaded rod (72) is connected to the adjusting knob (71), and the other end is threadedly connected to the intermediate-wheel fixed shaft (74). The adjusting knob (71) is provided outside the frame (1). A compression spring (75) is also connected above the intermediate-wheel fixed shaft (74), and the other end of the compression spring (75) is fixed to the frame (1); The main transmission shaft (5) and the secondary transmission shaft (6) are respectively meshed with the transmission-shaft intermediate wheel (73) through conical gears at one end to achieve power transmission.

2. A connecting rocker arm with synchronous movement at both ends according to claim 1, characterized in that, the driving end (2) is connected to the equipment main body, and the driven end (3) is connected to the equipment cover plate.

3. A connecting rocker arm with synchronous movement at both ends according to claim 1, characterized in that, the driving-end gear train (21) includes a central sun gear (211), planet gears (212) outside the sun gear (211), and an internal gear (213) outside the planet gears (212). The planet gears (212) are respectively meshed with the sun gear (211) and the internal gear (213), and the internal gear (213) is fixedly connected to the frame (1).

4. A connecting rocker arm with synchronous movement at both ends according to claim 3, characterized in that, the sun gear (211) is connected to the driving-end stepped shaft (4) by a key. The driving-end stepped shaft (4) is connected to a driving motor. The sun gear (211) drives the planet gears (212), which in turn drive the internal gear (213) to rotate. The driving-end cover plate (22) is provided on the end face of the internal gear (213).

5. A connecting rocker arm with synchronous movement at both ends according to claim 3, characterized in that, The number of the planet gears (212) is three. The planet gears (212) are fixed by a planet gear fixing plate (23), and the planet gear fixing plate (23) is fixed on the equipment main body. The planet gear fixing plate (23) is closely arranged with the driving end cover plate (22).

6. A connecting rocker arm with synchronous movement at both ends according to claim 5, characterized in that, a transmission shaft support (11) and an adjusting shaft conduit (12) are arranged inside the frame (1). The main transmission shaft (5) and the slave transmission shaft (6) are rotatably arranged on the transmission shaft support (11), and the intermediate gear fixed shaft (74) is placed inside the adjusting shaft conduit (12) of the frame (1).

7. A connecting rocker arm with synchronous movement at both ends according to claim 1, characterized in that, the driven end bevel gear (31) and the driven end cover plate (32) are fixed by threads, and the driven end cover plate (32) and the equipment cover plate are connected by threads.

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