A synchronous transmission

Abstract

A synchronous transmission device includes a main frame, an input mechanism, a transmission mechanism, and an output mechanism. The transmission mechanism includes two transmission plates, which are arranged opposite each other and rotatably connected to the main frame at the middle. A first adapter plate and a second adapter plate are respectively provided at both ends of the transmission plates. The transmission plates and the two adapter plates form a parallelogram structure. A connecting arm is provided on the outer side of the first adapter plate. Adjusting plates are rotatably connected to the outer ends of the connecting arm and the outer sides of the second adapter plate. The two adjusting plates are respectively connected to an input shaft and an output shaft via a lever. The rotation axes of the input shaft, output shaft, adjusting plates, and levers are parallel to the rotation axis of the transmission rod. The input shaft is connected to a power unit, and the transmission mechanism transmits power to the output shaft. The output shaft is connected to a working unit to complete the transmission operation. The mechanical connection method increases the mechanical strength of the transmission device. Furthermore, the connecting arm and transmission rod allow for smooth synchronous transmission even when the input and output shafts are far apart.

Description

Technical Field

[0001] This invention relates to the field of transmission technology, specifically to a synchronous transmission device. Background Technology

[0002] In the field of mechanical control technology, transmission devices are often used to connect power units and working units. Commonly used transmission devices usually include transmission belts, transmission chains, or gears. Among them, belt drives and chain drives have the advantage of low cost, while gear drives have the advantage of high transmission accuracy. They are used in different types of machinery according to different needs.

[0003] Due to the limitations of belt or chain drives in terms of transmission accuracy, they can only be used for short-distance transmission work. Usually, at least one tensioning device is added in the middle of the transmission belt or chain to increase the fit between the transmission belt or chain and the drive wheel. When the transmission distance is long, a large number of tensioning devices are required to compress the transmission belt or chain into a bent shape to ensure transmission accuracy. This is quite troublesome to set up, and the transmission chain or belt is easily damaged by fatigue, affecting its service life.

[0004] While gear mechanisms can ensure the transmission accuracy of the device, when the transmission distance is long, i.e. when the distance between the power unit and the working unit is long, two gears with larger diameters or a large number of gears are required to complete the transmission work, which greatly increases the cost of setting up the transmission device. At the same time, the complexity of the device setup is further increased because the matching accuracy between multi-stage gear transmissions also needs to be considered. Summary of the Invention

[0005] To address the technical problems existing in the background art, the present invention provides a synchronous transmission device that can perform long-distance transmission, ensure the transmission accuracy of the device, and has high mechanical strength.

[0006] The specific technical solution is as follows:

[0007] A synchronous transmission device includes a main frame, on which an input mechanism is provided. The input mechanism is connected to an output mechanism via a transmission mechanism. The input mechanism is connected to a power unit, and the output mechanism is connected to a working unit. The transmission mechanism is used to complete the transmission work between the input mechanism and the output mechanism.

[0008] Specifically, the transmission mechanism includes two transmission plates, the input mechanism includes a first adapter plate, and the output mechanism includes a second adapter plate. The transmission plates and the two adapter plates are rotatably connected end to end to form a parallelogram structure. The two transmission plates are arranged opposite each other, and the middle of each transmission plate is rotatably connected to the main frame. The ends of the transmission plates can reciprocate under the drive of the first adapter plate, thereby driving the second adapter plate to reciprocate in the opposite direction to the first adapter plate. It should be noted that the middle of the transmission plate is rotatably connected to the main frame. The purpose of this is to ensure that the displacement of the first adapter plate and the second adapter plate is the same, that is, the first adapter plate and the second adapter plate move synchronously in opposite directions, thereby ensuring that the transmission mechanism can perform synchronous transmission work.

[0009] Furthermore, a connecting arm is provided on the outer side of the first adapter plate. An adjusting plate is rotatably connected to the outer end of the connecting arm and the outer side of the second adapter plate. One end of the adjusting plate is rotatably connected to the adapter arm or the second adapter plate, and the other end is rotatably equipped with a lever. The end of the lever near the connecting arm is connected to the adjusting plate, and the other end is fixedly equipped with an input shaft. The end of the lever near the second adapter plate is connected to the adjusting plate, and the other end is fixedly equipped with an output shaft. Both the input shaft and the output shaft are rotatably connected to the main frame, and the axes of the input shaft and the output shaft, as well as the rotation axes of the adjusting plate and the lever, are parallel to the rotation axis of the middle part of the transmission plate. The input shaft is connected to the power unit and driven to rotate. The rotation of the input shaft drives the dial plate at its rear end to rotate, which in turn drives the connecting arm to reciprocate through the adjusting plate. The reciprocating movement of the connecting arm drives the first adapter plate to move, which in turn drives the adapter plate to reciprocate synchronously through the transmission mechanism. The movement of the adapter plate drives the adjusting plate connected to it to move, which in turn drives the dial plate to rotate, thereby driving the output shaft to rotate synchronously. The transmission work is completed by mechanical connection, which makes the mechanical strength of the transmission device higher. At the same time, the setting of the connecting arm and the transmission rod allows the synchronous transmission work to be completed smoothly even when the input shaft and the output shaft are far apart.

[0010] In the synchronous transmission device described above, the distance between the adjusting plate and the transmission plate connected on the connecting arm is greater than the distance between the adjusting plate and the transmission plate connected on the second adapter plate, thereby enabling the transmission device to have a better working effect.

[0011] Furthermore, the transmission plate is rotatably connected to the main frame, and the axis of rotation is horizontal. The end of the transmission plate can float up and down under the drive of the first adapter plate. Since the connecting arm has mass, the input shaft must overcome the gravity of the connecting arm to do work when it rotates. That is, when the output torque is constant, a larger input torque is required. In order to balance the weight of the connecting arm, a counterweight is added to the outside of the second adapter plate.

[0012] Preferably, when the adjusting plate connected to the input shaft moves the connecting arm, it acts on the outer end of the connecting arm, while the connecting arm drives the first adapter plate to move by relying on its inner end. This requires that there must be a strong connection between the connecting arm and the first adapter plate. A reinforcing rib is also connected at the connection position between the connecting arm and the first adapter plate.

[0013] As described above, in a synchronous transmission device, a flywheel is also provided on the output shaft to increase the rotational inertia of the output shaft and ensure that the output shaft can always rotate around a fixed direction under the action of the input shaft and the flywheel after the device is started.

[0014] Furthermore, the length of the transmission plate is greater than the length of the first adapter plate and the second adapter plate, making the transmission operation smoother.

[0015] Furthermore, the main frame is also covered by a housing to protect the internal structure from contamination or damage, further increasing the service life of the device. The outer ends of the input shaft and output shaft extend to the outside of the housing.

[0016] Furthermore, the lines connecting the second adapter plate to the two transmission plates and the adjusting plate at their rotatable connection positions form an equilateral triangle, ensuring that the force between the transmission rod and the second adapter plate, as well as the force between the second adapter plate and the adjusting plate connected to it, remains balanced. This ensures that the transmission of power from the transmission mechanism to the second adapter plate and from the second adapter plate to the adjusting plate connected to it is more stable and efficient, making the second adjusting plate less prone to damage even when subjected to large forces, thus increasing the working life of the device and the maximum torque it can output.

[0017] The beneficial effects of this invention are as follows: This invention is a synchronous transmission device, in which the input mechanism is connected to the power unit, and the transmission mechanism transmits the power to the output mechanism. The output mechanism is connected to the working unit to complete the transmission work. The entire device completes the transmission work through mechanical connection, which makes the mechanical strength of the transmission device higher. At the same time, the setting of the connecting arm and the transmission plate allows the transmission work to be completed smoothly even when the input shaft and the output shaft are far apart. Moreover, the middle part of the transmission rod of this device is rotatably connected to the main frame, so that the displacement of the first transition plate and the second transition plate can be the same, that is, the first transition plate and the second transition plate move synchronously in opposite directions, thereby ensuring that the transmission mechanism can perform synchronous transmission work. Attached Figure Description

[0018] The solutions and advantages of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the transmission device in the embodiment;

[0021] Figure 2 This is a schematic diagram of the transmission device behind the concealed housing in the embodiment;

[0022] Figure 3 This is a front view of the transmission device in the embodiment (hiding the housing, front bracket, and flywheel).

[0023] Figure 4 This is a schematic diagram of the connection structure between the first adapter plate and the connecting arm in the embodiment;

[0024] Figure 5 This is a schematic diagram of the structure of the second adapter plate in the embodiment;

[0025] The components represented by the various reference numerals in the diagram are:

[0026] 1. Housing; 2. Main frame; 21. Base frame; 22. Front support; 23. Rear support; 3. Transmission mechanism; 31. Transmission plate; 4. Input mechanism; 41. First adapter plate; 42. Connecting arm; 421. Reinforcing rib; 43. Adjusting plate; 44. Paddle plate; 45. Input shaft; 5. Output mechanism; 51. Second adapter plate; 52. Output shaft. Detailed Implementation

[0027] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. Example

[0028] This embodiment provides a synchronous transmission device, see [link]. Figure 1 It includes a main frame 2, on which an input mechanism 4 is provided. The input mechanism 4 is connected to an output mechanism 5 through a transmission mechanism 3. The input mechanism 4 is connected to a power unit, and the output mechanism 5 is connected to a working unit. The transmission mechanism 3 is used to complete the transmission work between the input mechanism 4 and the output mechanism 5.

[0029] In this embodiment, the outer side of the main frame 2 is also covered by a shell 1 to protect the internal structure from contamination or damage and increase the service life of the device. As a preferred option, the shell 1 is a sealed structure with an oil inlet at the top and an oil drain at the bottom, and lubricating oil is added through the oil inlet.

[0030] In this embodiment, combined with Figure 2 and Figure 3The main frame 2 includes a horizontally arranged base frame 21. The base frame 21 includes a frame structure, and the upper part of its front and rear sides is provided with a front support 22 and a rear support 23, respectively. The rear support 23 is a vertically arranged square plate structure, and the two plate surfaces point to the front and rear sides of the device, respectively. Of course, the fact that the two plate surfaces of the rear support 23 point to the front and rear sides of the device is only one preferred embodiment and is not considered a limitation on the arrangement of the rear support 23 in this embodiment.

[0031] Furthermore, the transmission mechanism 3 includes two transmission plates 31, which are arranged vertically at the front end of the rear support 23. Each transmission plate 31 is a square plate with its two surfaces pointing to the front and rear sides of the device, respectively. A first connecting hole is provided through the center of the transmission plate 31 along its thickness direction. Two first mating holes are provided vertically on the upper part of the rear support 23 along its thickness direction. The two transmission plates 31 are rotated and connected to the rear support 23 through the first connecting hole and the two first mating holes, respectively, so that both ends of the transmission plate 31 can move up and down. At the same time, the arrangement of two transmission plates 31 makes the transmission work easier and simpler to set up. If only one plate is set, its strength will be greatly reduced. If more than three plates are set, it is very easy to cause interference or increase the transmission resistance.

[0032] Furthermore, the input mechanism 4 includes a first adapter plate 41, which has a square plate structure with its two plates pointing to the front and rear sides of the device respectively, and a second connecting hole penetrating through both ends along its thickness direction. The two transmission plates 31 are located on the same side of the rear support 23 and have a second mating hole penetrating through the thickness direction of the transmission plate 31. The first adapter plate 41 is located on the front side of the transmission plate 31 through the mating of the second connecting holes at both ends with the second mating holes on the two transmission plates 31. It should be noted that the center distance between the two second connecting holes is the same as the center distance between the two first mating holes, so that the first adapter plate 41 always remains vertical during movement, and the two transmission rods can always remain parallel during rotation under the drive of the first adapter plate 41.

[0033] Furthermore, in combination Figure 5The output mechanism 5 includes a second adapter plate 51. The inner side of the second adapter plate 51 is a square plate structure, with its two surfaces pointing to the front and rear sides of the device, and its four corners are rounded. Third connecting holes are provided through both ends of the inner side of the second adapter plate along its thickness direction. Third mating holes are also provided through the ends of the two transmission plates 31 away from the second mating holes along the thickness direction of the transmission plates 31. The inner side of the second adapter plate 51 is positioned on the front side of the transmission plates 31 through the mating of the third connecting holes at both ends with the third mating holes on the two transmission plates 31. It should be noted that the center distance between the two third connecting holes is the same as the center distance between the two second connecting holes, so that the inner side of the second adapter plate 51... During the movement, it remains vertical, and the inner sides of the two transmission plates 31, the first adapter plate 41, and the second adapter plate 51 form a parallelogram structure. That is, the centers of the second and third mating holes at both ends of the two transmission plates 31 form a parallelogram. The ends of the transmission plates 31 reciprocate under the drive of the first adapter plate 41, which in turn drives the second adapter plate 51 to reciprocate in the opposite direction to the first adapter plate 41. Since the middle part of the transmission plate 31 is rotatably connected to the main frame 2, the displacement of the first adapter plate 41 and the second adapter plate 51 can be the same, that is, the first adapter plate 41 and the second adapter plate 51 move synchronously in opposite directions, thereby ensuring that the transmission mechanism 3 can perform synchronous transmission work.

[0034] Furthermore, the length of the transmission plate 31 is greater than the length of the first adapter plate and the second adapter plate, making the transmission operation smoother.

[0035] In this embodiment, in conjunction with 4, the input mechanism 4 further includes a connecting arm 42. The connecting arm 42 includes a rectangular plate structure with its two plates pointing to the front and rear sides of the device, respectively. The connecting arm 42 is horizontally arranged and its inner end is fixedly connected to the outer side of the first adapter plate 41. The outer end of the connecting arm 42 is provided with a fourth connecting hole along its thickness direction. The outer middle of the second adapter plate 51 extends outward, and the extended part is provided with a fifth connecting hole along its thickness direction. The transmission device also includes two adjusting plates 43. The adjusting plates 43 include a square plate structure with its two plates pointing to the front and rear sides of the device, respectively. One end of the adjusting plate 43 is provided with a fourth mating hole along its thickness direction. The two adjusting plates 43 are rotatably disposed on the front side of the connecting arm 42 and the second adapter plate 51 through the mating of the fourth adjusting hole and the fourth connecting hole and the fifth connecting hole, respectively.

[0036] It should be noted that the centers of the two third and fifth connecting holes form an equilateral triangle, which ensures that the force between the transmission rod and the second adapter plate 51, as well as the force between the second adapter plate 51 and the adjusting plate 43 connected to it, can be kept balanced. This ensures that the transmission of power from the transmission mechanism 3 to the second adapter plate 51 and from the second adapter plate 51 to the adjusting plate 43 connected to it can be more stable and effective. This also makes the second adjusting plate 43 less prone to damage when subjected to large forces, increasing the working life of the device and the maximum torque that can be output.

[0037] Furthermore, the adjusting plate 43 has a sixth connecting hole extending through its thickness at the end away from the fourth mating hole. The transmission device also includes two lever plates 44. Each lever plate 44 has a square plate structure with its two surfaces pointing to the front and rear sides of the device, respectively. One end of each lever plate 44 has a fifth mating hole extending through its thickness. The two lever plates 44 are rotatably positioned on the front side of the two adjusting plates 43 through the mating of the fifth adjusting hole and the sixth connecting hole.

[0038] Furthermore, the end of the transmission plate 31 floats up and down under the action of the first adapter plate 41, which in turn drives the second adapter plate 51 to float up and down. Since the connecting arm 42 has mass, when the lever plate 44 drives the connecting arm 42 to move, it must overcome the gravity of the connecting arm 42 to do work. That is, when the output torque is constant, a larger input torque is required. In order to balance the weight of the connecting arm 42, a counterweight (not shown) is added to the outside of the second adapter plate 51.

[0039] Furthermore, the input device and output device also include an input shaft 45 and an output shaft 52. One end of the input shaft 45 is fixedly connected to a dial plate 44 near the side of the connecting arm 42 and is located on the front side of the dial plate 44 away from the fifth mating hole. The axis of the input shaft 45 is perpendicular to the surface of the dial plate 44. One end of the output shaft 52 is fixedly connected to a dial plate 44 near the side of the second adapter plate 51 and is located on the front side of the dial plate 44 away from the fifth mating hole. The axis of the output shaft 52 is perpendicular to the surface of the dial plate 44.

[0040] It should be noted that the level of the lubricating oil inside the housing 1 is not lower than the height of the end of the dial plate 44 near the fifth mating hole when it is rotated to the lowest point under the action of the input shaft 45 or the adjusting plate 43, so as to facilitate the lubricating oil to be splashed up during the rotation and complete the overall lubrication of the device.

[0041] Furthermore, the front bracket 22 includes a vertically arranged n-shaped frame structure, with adapter seats at the corner positions on both sides of its upper end. The input shaft 45 and output shaft 52 are rotatably connected to the front bracket 22 through the two adapter seats. The adapter seats are located on the inner side of the corner positions to ensure that the adapter seats are more securely fixed. The front ends of the input shaft 45 and output shaft 52 extend out of the housing 1. The input shaft 45 is connected to the power unit and is driven to rotate by the power unit. The rotation of the input shaft 45 drives the lever 44 at its rear end to rotate, thereby adjusting... Plate 43 drives connecting arm 42 to reciprocate. The reciprocating movement of connecting arm 42 drives the first adapter plate 41 to move, which in turn drives the adapter plate to reciprocate synchronously through transmission mechanism 3. The movement of the adapter plate drives the adjustment plate 43 connected to it to move, and through adjustment plate 43 drives the dial plate 44 to rotate, which in turn drives the output shaft 52 to rotate synchronously. The transmission work is completed by mechanical connection, which makes the mechanical strength of the transmission device higher. At the same time, the setting of connecting arm 42 and transmission rod allows the synchronous transmission work to be completed smoothly even when the input shaft 45 and output shaft 52 are far apart.

[0042] It should be noted that the distance between the adjusting plate 43 connected to the connecting arm 42 and the transmission plate 31 is greater than the distance between the adjusting plate 43 connected to the second adapter plate 51 and the transmission plate 31, so that the transmission device has a better working effect.

[0043] Preferably, when the adjusting plate 43 connected to the input shaft 45 moves the connecting arm 42, it acts on the outer end of the connecting arm 42, while the connecting arm 42 drives the first adapter plate 41 to move by its inner end. This means that there must be a strong connection between the connecting arm 42 and the first adapter plate 41. A reinforcing rib 421 is also connected at the connection position between the connecting arm 42 and the first adapter plate 41.

[0044] More preferably, the output shaft 52 is also provided with a flywheel, which is located outside the housing 1. The flywheel can increase the rotational inertia of the output shaft 52, ensuring that after the device is started, the output shaft 52 can always rotate around a fixed direction under the action of the input shaft 45 and the flywheel.

[0045] In this embodiment, the transmission plate 31 is connected to the rear bracket 23, the first adapter plate 41 and the second adapter plate 51, and the adjustment plate 43 is connected to the lever plate 44, the connecting arm 42 and the second adapter plate 51 by bearings.

Claims

1. A synchronous transmission device, characterized in that, Includes a main frame (2), on which an input mechanism (4) is provided, and the input mechanism (4) is connected to an output mechanism (5) through a transmission mechanism (3); The transmission mechanism (3) includes two transmission plates (31), the input mechanism (4) includes a first adapter plate (41), and the output mechanism (5) includes a second adapter plate (51). The transmission plates (31) and the two adapter plates are connected end to end in a parallelogram structure. The two transmission plates (31) are arranged opposite each other and are rotatably connected to the main frame (2) in the middle. The end of the transmission plate (31) can move back and forth under the drive of the first adapter plate (41), thereby driving the second adapter plate (51) to move back and forth in the opposite direction to the first adapter plate (41). A connecting arm (42) is provided on the outer side of the first adapter plate (41). An adjusting plate (43) is rotatably connected to the outer end of the connecting arm (42) and the outer side of the second adapter plate (51). One end of the adjusting plate (43) is rotatably connected to the adapter arm or the second adapter plate (51), and the other end is rotatably provided with a dial plate (44). One end of the dial plate (44) near the connecting arm (42) is connected to the adjusting plate (43), and the other end is fixedly provided with an input shaft (45). One end of the dial plate (44) near the second adapter plate (51) is connected to the adjusting plate (43), and the other end is fixedly provided with an output shaft (52). The input shaft (45) and the output shaft (52) are rotatably connected to the main frame (2), and the axes of the input shaft (45) and the output shaft (52), as well as the rotation axes of the adjusting plate (43) and the dial plate (44), are parallel to the rotation axis of the middle part of the transmission plate (31).

2. The synchronous transmission device according to claim 1, characterized in that, The distance between the adjusting plate (43) on the connecting arm (42) and the transmission plate (31) is greater than the distance between the adjusting plate (43) on the second adapter plate (51) and the transmission plate (31).

3. A synchronous transmission device according to claim 1 or 2, characterized in that, The transmission plate (31) is rotatably connected to the main frame (2), and the axis of rotation is horizontal. The end of the transmission plate (31) can float up and down under the drive of the first adapter plate (41). The second adapter plate (51) is provided with a counterweight on its outer side.

4. A synchronous transmission device according to claim 1 or 2, characterized in that, A reinforcing rib (421) is connected between the connecting arm (42) and the first adapter plate (41).

5. A synchronous transmission device according to claim 1, characterized in that, The output shaft (52) is also equipped with a flywheel.

6. A synchronous transmission device according to claim 1, characterized in that, The length of the transmission plate (31) is greater than the lengths of the first adapter plate (41) and the second adapter plate (51).

7. A synchronous transmission device according to claim 1, characterized in that, The main frame (2) is also covered by a housing (1), and the outer ends of the input shaft (45) and the output shaft (52) extend to the outside of the housing (1).

8. A synchronous transmission device according to claim 1, characterized in that, The line connecting the second adapter plate (51) with the two transmission plates (31) and the adjustment plate (43) at their rotational connection positions forms an equilateral triangle.

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