Gear transmission device for electromechanical equipment with buffering mechanism

Abstract

The utility model discloses a gear transmission device of a mechanical and electrical equipment with a buffer mechanism, which comprises: a tooth ring, a circular ring groove is recessed on the inner ring surface of the tooth ring, a driving disc is rotatably installed in the circular ring groove, the upper and lower surfaces of the driving disc are both convex and protrude from the inner ring surface of the tooth ring, so as to form a middle-shaped structure, and compression grooves are arranged at both ends of the outer surface of the driving disc, and a buffer mechanism is slidably installed in the compression grooves. Through the design of the buffer mechanism in this application, a "transition buffer section" is added to the power transmission, so that when the load of the motor suddenly rises, the torque will be slowly transmitted to the tooth ring as the friction force increases, avoiding the tooth ring from suddenly bearing a peak torque far exceeding the design value, greatly reducing the damage risk of core components such as the tooth surface of the gear and the wheel shaft, and prolonging the overall service life of the transmission system.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, specifically to a gear transmission device for electromechanical equipment with a buffer mechanism. Background Technology

[0002] In the operating system of modern electromechanical equipment, gear transmission devices serve as the core hub for power transmission, and their operational stability and service life directly determine the overall machine's efficiency and maintenance costs. However, in practical applications, traditional gear transmission devices often experience instantaneous rigid impacts due to sudden motor starts, sudden load changes, system reversals, or emergency stops. These impacts not only lead to severe wear and breakage of the gear teeth but also cause equipment vibration and noise pollution, significantly shortening the service life of the transmission system. Simultaneously, they increase maintenance costs and the risk of production stoppages, becoming a key bottleneck restricting the development of electromechanical equipment towards higher efficiency, precision, and longer lifespan.

[0003] For example, patent CN201129430Y discloses a gear buffer structure, which includes an upper gear and a lower gear with their axes aligned on the same straight line. It also includes a buffer structure disposed between the opposing spokes of the two gears. The buffer structure includes a protrusion on the lower spoke of the upper gear, a buffer element, and a support for housing the buffer element. The support is disposed on the upper spoke of the lower gear, corresponding to the protrusion of the upper gear. The front part of the protrusion enters the support and abuts against one end of the buffer element. In use, the upper and lower gears of this invention are respectively mounted on a section of axle, and their torque is transmitted through the buffer structure. Therefore, when the transmitted torque variable is large, it can delay and absorb the change, thus making the torque change more stable, avoiding instantaneous impact on the gear set and axle, reducing noise, and extending the life of the reducer.

[0004] However, the aforementioned gear buffer structure relies solely on the contact between a single protrusion and the buffer element to transmit torque. The buffer stroke is limited by the space of the support. When encountering large torque fluctuations (such as high-frequency start-stop of the motor or a sudden increase in load), the buffer element is prone to losing its buffering capacity due to excessive deformation, resulting in the inability to effectively absorb the impact. Furthermore, this structure is only suitable for coaxial transmission scenarios where the upper and lower gears are relatively fixed. It has poor adaptability to electromechanical equipment that requires multi-directional power distribution or complex transmission paths (such as robot joints and multi-axis conveyor systems), making it difficult to meet diverse transmission needs. Summary of the Invention

[0005] The purpose of this utility model is to provide a gear transmission device for electromechanical equipment with a buffer mechanism, so as to solve the problems mentioned in the background art, such as limited buffer stroke of the gear buffer structure, concentrated torque transmission and easy wear, and poor adaptability to various scenarios.

[0006] To achieve the above object, the present utility model provides the following technical solutions:

[0007] A gear transmission device of an electromechanical device with a buffer mechanism, including a gear ring; an embedded circular groove is provided on the inner ring surface of the gear ring, and a driving disk is rotatably installed in the circular groove; the upper and lower surfaces of the driving disk are both convex, and the convex parts extend from the inner ring surface of the gear ring, so that the driving disk forms a middle-shaped structure; compression grooves are provided at both ends of the outer surface of the driving disk, and buffer mechanisms are slidably installed in the compression grooves.

[0008] In the above gear transmission device of an electromechanical device with a buffer mechanism, the driving disk can be penetrated by the output shaft or the shaft of the motor, and the driving disk can be driven to rotate or meshed to rotate around its own axis; when the driving disk is driven to rotate, it can drive the buffer mechanism to abut against the elliptical ring surface of the damping ring and rotate synchronously with the driving disk; the damping ring is fixedly installed in the circular groove.

[0009] In the above gear transmission device of an electromechanical device with a buffer mechanism, balls are annularly and rotatably installed in the upper and lower surfaces of the driving disk; the balls extending from the upper and lower surfaces of the driving disk can roll in the arc ring grooves; the arc ring grooves are provided at the upper and lower surfaces in the circular groove.

[0010] In the above gear transmission device of an electromechanical device with a buffer mechanism, the buffer mechanism includes a guide rod; the guide rod is fixedly installed in the compression groove; a top contact rod is slidably installed on the outer surface of the guide rod, and the top contact rod can also slide in the compression groove.

[0011] In the above gear transmission device of an electromechanical device with a buffer mechanism, a rectangular spring is sleeved on the outer surface of the guide rod; both ends of the rectangular spring are respectively fixedly connected to one end inner wall of the compression groove and one end of the top contact rod; so that the rectangular spring can exert an outward elastic pushing force on the top contact rod.

[0012] In the above gear transmission device of an electromechanical device with a buffer mechanism, the top contact rod under the action of the elastic pushing force of the rectangular spring can be pushed to abut against the elliptical ring surface of the damping ring; the top contact rod can rotate synchronously with the rotation of the driving disk, and can abut against the stop rod during the rotation process to be blocked; the stop rod is fixedly installed at both ends inside the elliptical ring surface of the damping ring; during the rotation of the top contact rod with the driving disk in the elliptical ring surface of the damping ring, due to the elliptical structural characteristics of the elliptical ring surface of the damping ring, the top contact rod can be gradually squeezed and slide back into the compression groove, and can continuously compress the rectangular spring during the sliding-back process.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The rolling fit between the ball and the arc-shaped ring groove reduces the frictional loss between the driving disc and the circular ring groove. The "flexible buffering" of the rectangular spring reduces the impact damage to components such as the gear ring and the shaft rod, greatly reducing the replacement frequency of vulnerable parts. On the other hand, the buffer mechanism can automatically reset after stopping, reducing the maintenance workload and operation difficulty of maintenance personnel. In the long term, it can not only reduce the spare parts procurement and replacement costs, but also shorten the equipment downtime for maintenance, reducing the overall operation and maintenance investment for the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS [[ID=,7]]

[0015] Figure 1 FIG. is a schematic structural diagram of a gear transmission device of an electromechanical equipment with a buffer mechanism according to the present utility model;

[0016] Figure 2 FIG. is a schematic structural diagram of the gear ring and the driving disc of the present utility model;

[0017] Figure 3 FIG. is a schematic structural diagram of the damping ring, the ball and the arc-shaped ring groove of the present utility model;

[0018] Figure 4 FIG. is a schematic structural diagram of the buffer mechanism of the present utility model.

[0019] In the figure: 1, gear ring; 101, driving disc; 102, ball; 103, damping ring; 104, stop rod; 105, circular ring groove; 106, arc-shaped ring groove; 107, compression groove; 2, buffer mechanism; 201, guide rod; 202, rectangular spring; 203, top contact rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, 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 utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1-4 shown, this embodiment provides a gear transmission device of an electromechanical equipment with a buffer mechanism, including a gear ring 1; an embedded circular ring groove 105 is formed on the inner ring surface of the gear ring 1, and a driving disc 101 is rotatably installed in the circular ring groove 105; both the upper and lower surfaces of the driving disc 101 are in a convex shape, and the convex parts extend from the inner ring surface of the gear ring 1, so that the driving disc 101 forms a Chinese character "zhong" structure; compression grooves 107 are formed at both ends of the outer surface of the driving disc 101, and a buffer mechanism 2 is slidably installed in the compression grooves 107.

[0022] The drive disk 101 allows the motor output shaft or shaft to pass through it, and the drive disk 101 can be driven to rotate or engaged to rotate around its own axis. When the drive disk 101 is driven to rotate, it can drive the buffer mechanism 2 to contact the elliptical ring surface of the damping ring 103 and rotate synchronously with the drive disk 101. The damping ring 103 is fixedly installed in the annular groove 105, and the upper and lower surfaces of the drive disk 101 are both rotatably equipped with balls 102 in annular shape. The balls 102 extending from the upper and lower surfaces of the drive disk 101 can roll in the arc ring groove 106. The arc ring groove 106 is opened on the upper and lower surfaces of the annular groove 105.

[0023] Through the design of the gear ring 1, drive disk 101, ball bearings 102, damping ring 103, stop lever 104, annular groove 105, compression groove 107, and buffer mechanism 2, when the motor output shaft or external shaft is fixed to the drive disk 101, the power will drive the drive disk 101 to rotate in the annular groove 105. Since the upper and lower surfaces of the drive disk 101 are both annularly mounted with ball bearings 102, these ball bearings 102 that pop out from the upper and lower surfaces of the drive disk 101 will roll synchronously in the annular grooves 106 opened on the upper and lower surfaces of the annular groove 105. With the help of the rolling cooperation between the ball bearings 102 and the annular grooves 106, This significantly reduces the frictional resistance of the drive disk 101 as it rotates within the annular groove 105, ensuring a smooth and stable rotation of the drive disk 101 and preventing rotational jamming or component wear due to excessive friction. As the drive disk 101 continues to rotate, the buffer mechanism 2, which is slidably installed in the compression grooves 107 at both ends of its outer surface, rotates synchronously with the drive disk 101. Since the damping ring 103 is fixedly installed within the annular groove 105, the rotating buffer mechanism 2 will always be in contact with the elliptical surface of the damping ring 103. During the process of the drive disk 101 driving the buffer mechanism 2 to rotate along the elliptical surface of the damping ring 103, the frictional resistance is significantly reduced. The damping ring 103 has an elliptical ring structure, and its surface curvature changes with the rotation angle. When the buffer mechanism 2 rotates with the drive disk 101 to the minor axis position of the elliptical surface of the damping ring 103, the elliptical surface exerts a squeezing force on the buffer mechanism 2, causing the buffer mechanism 2 to slide and contract into the compression groove 107. During this process, the compressed buffer mechanism 2 gradually increases the friction between itself and the elliptical surface of the damping ring 103. This friction can slowly drive the toothed ring 1 to rotate. The gradually increasing damping force during this process can absorb the instantaneous impact energy generated during transmission, preventing the impact from being directly transmitted to the toothed ring 1 or the outside. In the transmission components, when the buffer mechanism 2 continues to rotate with the drive disc 101 to the stop rods 104 at both ends of the elliptical ring surface of the damping ring 103, the stop rods 104 will physically block the buffer mechanism 2, thereby enabling the drive gear ring 1 to rotate and ultimately achieve smooth power transmission, reducing the damage of impact to the gear transmission system, adding a "transition buffer section" for power transmission, so that the torque will be slowly transmitted to the gear ring 1 as the friction increases, avoiding the gear ring 1 from suddenly bearing peak torque far exceeding the design value, greatly reducing the risk of damage to core components such as gear tooth surfaces and axles, and extending the overall service life of the transmission system.

[0024] like Figure 4As shown, the buffer mechanism 2 includes a guide rod 201; the guide rod 201 is fixedly installed in the compression groove 107; a top contact rod 203 is slidably installed on the outer surface of the guide rod 201, and the top contact rod 203 can slide in the compression groove 107 at the same time; a rectangular spring 202 is fitted on the outer surface of the guide rod 201; the two ends of the rectangular spring 202 are respectively fixedly connected to one end of the inner wall of the compression groove 107 and one end of the top contact rod 203; thereby enabling the rectangular spring 202 to apply an outward spring force to the top contact rod 203.

[0025] The top contact rod 203, which is pushed by the rectangular spring 202, can be pushed to contact the elliptical surface of the damping ring 103. The top contact rod 203 can rotate synchronously with the rotation of the drive disk 101, and can contact the stop rod 104 to be stopped during the rotation. The stop rod 104 is fixedly installed on the inner sides of both ends of the elliptical surface of the damping ring 103. During the rotation of the top contact rod 203 with the drive disk 101 within the elliptical surface of the damping ring 103, due to the elliptical structure of the elliptical surface of the damping ring 103, the top contact rod 203 can be gradually squeezed and slid into the compression groove 107, and can continuously compress the rectangular spring 202 during the sliding process.

[0026] Through the design of the guide rod 201, rectangular spring 202, and top contact rod 203, when the drive disk 101 starts to rotate, the top contact rod 203, which is slidably installed in the compression groove 107 of the drive disk 101, will always keep its top contact on the elliptical annular surface of the damping ring 103 under the spring force of the rectangular spring 202. As the drive disk 101 continues to rotate, the top contact rod 203 moves along the elliptical annular surface of the damping ring 103. When the top contact rod 203 rotates to the minor axis position of the elliptical annular surface, the curvature change of the elliptical annular surface generates an inward squeezing force on the top contact rod 203. Since the top contact rod 203 slides in the compression groove 107 and slides with the guide rod 201, the guide rod 201 provides a stable sliding guide for the top contact rod 203. This allows the top contact rod 203 to slide axially into the compression groove 107 along the guide rod 201, preventing it from shifting or jamming under the compression action. During this process, the sliding of the top contact rod 203 continuously compresses the rectangular spring 202 sleeved on the outer surface of the guide rod 201. The rectangular spring 202 gradually stores elastic potential energy due to deformation, and its reaction force also increases accordingly. This reaction force is transmitted to the damping ring 103 through the top contact rod 203, causing the friction between the top contact rod 203 and the damping ring 103 to gradually increase. As the friction gradually increases, the damping ring 103 begins to be slowly driven to rotate. The damping ring 103 is fixedly installed in the annular groove 105 of the toothed ring 1, thereby driving the toothed ring 1 to rotate synchronously, realizing the power from the drive disc. During the transmission of energy from 101 to the gear ring 1, when the motor starts and generates an instantaneous impact or a sudden change in load, the elastic deformation of the rectangular spring 202 and the gradually increasing friction form a "flexible buffer" to absorb the impact energy, preventing the impact from being directly transmitted to the gear ring 1. At the same time, the gradually increasing friction ensures that the speed of the gear ring 1 increases slowly, preventing gear meshing impact caused by a sudden increase in speed. Until the top contact rod 203 continues to rotate with the drive disc 101 to the stop rods 104 at both ends of the elliptical surface of the damping ring 103, the stop rods 104 physically block the top contact rod 203, limiting the top contact rod 203 from continuing to move along the elliptical surface, allowing the drive disc 101 to drive the gear ring 1 to rotate at full speed. After stopping, the elliptical surface of the damping ring 103... The torsional force applied to the top contact rod 203 by the annular surface also disappears simultaneously, while the previously compressed rectangular spring 202 releases its stored elastic potential energy and pushes the top contact rod 203 along the guide rod 201 axially towards the outside of the compression groove 107 through its own restoring spring thrust. This allows the top contact rod 203 to gradually extend out of the elliptical ring surface of the damping ring 103 and return to its original position, allowing the buffer mechanism 2 to return to the state when it is started next time. Moreover, the spring thrust of the rectangular spring 202 can adaptively adjust the contact pressure between the top contact rod 203 and the damping ring 103. Even if the components experience slight wear after long-term use, a stable buffering effect can still be maintained. At the same time, the overall structure is compact and can be flexibly adapted to different specifications of drive disc 101 and gear ring 1, making it widely applicable.

[0027] Based on the above technical solution, the working steps of this solution are summarized as follows: After the motor output shaft or external shaft is fixed to the drive disk 101, the power will drive the drive disk 101 to rotate within the annular groove 105. Since the upper and lower surfaces of the drive disk 101 are both equipped with annularly rotating balls 102, these balls 102 ejected from the upper and lower surfaces of the drive disk 101 will simultaneously roll within the arc-shaped grooves 106 on the upper and lower surfaces of the annular groove 105. Through the rolling cooperation between the balls 102 and the arc-shaped grooves 106, the frictional resistance of the drive disk 101 when rotating within the annular groove 105 can be significantly reduced, ensuring that the overall rotation of the drive disk 101 is smooth and stable, avoiding rotational jamming or component wear caused by excessive friction. As the drive disc 101 continues to rotate, the top contact rod 203, which is slidably mounted in the compression groove 107 of the drive disc 101, will always remain in contact with the elliptical surface of the damping ring 103 under the elastic force of the rectangular spring 202. With the continuous rotation of the drive disc 101, the top contact rod 203 moves along the elliptical surface of the damping ring 103. When the top contact rod 203 rotates to the minor axis position of the elliptical surface, the change in curvature of the elliptical surface generates an inward squeezing force on the top contact rod 203. Since the top contact rod 203 simultaneously slides within the compression groove 107 and is in sliding engagement with the guide rod 201, the guide rod 201 provides a stable sliding guide for the top contact rod 203, ensuring that it can only slide inward into the compression groove 107 along the axial direction of the guide rod 201, thus preventing the top contact rod 203 from being squeezed. If a misalignment or jamming occurs, during this process, the sliding of the top contact rod 203 will continuously compress the rectangular spring 202 sleeved on the outer surface of the guide rod 201. The rectangular spring 202 gradually stores elastic potential energy due to deformation, and its reaction force also increases accordingly. This reaction force is transmitted to the damping ring 103 through the top contact rod 203, causing the friction between the top contact rod 203 and the damping ring 103 to gradually increase. As the friction gradually increases, the damping ring 103 begins to rotate slowly. The damping ring 103 is fixedly installed in the annular groove 105 of the gear ring 1, thereby driving the gear ring 1 to rotate synchronously, realizing the transmission of power from the drive disc 101 to the gear ring 1. During this process, when the motor starts and generates a momentary impact or a sudden change in load, the rectangular spring 202... The elastic deformation and gradually increasing friction form a "flexible buffer" to absorb impact energy, preventing the impact from being directly transmitted to the gear ring 1. At the same time, the gradually increasing friction ensures that the rotational speed of the gear ring 1 increases slowly, preventing gear meshing impact caused by a sudden increase in speed. When the top contact rod 203 continues to rotate with the drive disc 101 to the stop rods 104 at both ends of the elliptical surface of the damping ring 103, the stop rods 104 physically block the top contact rod 203, limiting its continued movement along the elliptical surface. This allows the drive disc 101 to drive the gear ring 1 to rotate at full speed. After stopping, the torsional force exerted on the top contact rod 203 by the elliptical surface of the damping ring 103 also disappears simultaneously, and the previously compressed rectangular spring 202 releases its stored elastic potential energy.The top contact rod 203 is pushed by its own reset spring thrust to slide axially along the guide rod 201 towards the outside of the compression groove 107, thereby allowing the top contact rod 203 to gradually extend outward from the elliptical surface of the damping ring 103 and return to its original position, allowing the buffer mechanism 2 to return to its state for the next start-up.

[0028] In summary, this gear transmission device with a buffer mechanism adds a "transition buffer section" to power transmission. When the motor load increases instantaneously, the torque will be slowly transmitted to the gear ring 1 as the friction increases, avoiding the gear ring 1 from suddenly bearing a peak torque far exceeding the design value. This significantly reduces the risk of damage to core components such as gear teeth and shafts, and extends the overall service life of the transmission system.

[0029] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gear transmission device for electromechanical equipment with a buffer mechanism, characterized in that, Includes a toothed ring (1); the inner ring surface of the toothed ring (1) is provided with an embedded circular groove (105), and a drive disk (101) is rotatably installed in the circular groove (105); the upper and lower surfaces of the drive disk (101) are both convex, and the convex part extends from the inner ring surface of the toothed ring (1), thereby forming a Chinese character structure of the drive disk (101); both ends of the outer surface of the drive disk (101) are provided with compression grooves (107), and a buffer mechanism (2) is slidably installed in the compression groove (107).

2. The gear transmission device for electromechanical equipment with a buffer mechanism according to claim 1, characterized in that, The drive disk (101) can be passed through by the motor output shaft or shaft, and the drive disk (101) can be driven to rotate or engaged to rotate around itself as the axis; when the drive disk (101) is driven to rotate, it can drive the buffer mechanism (2) to contact the elliptical ring surface of the damping ring (103) and rotate synchronously with the drive disk (101); the damping ring (103) is fixedly installed in the annular groove (105).

3. The gear transmission device for electromechanical equipment with a buffer mechanism according to claim 1, characterized in that, The upper and lower surfaces of the drive disk (101) are each equipped with a ball bearing (102) that rotates in a ring shape. The ball bearing (102) extending from the upper and lower surfaces of the drive disk (101) can roll in the arc ring groove (106). The arc ring groove (106) is opened on the upper and lower surfaces of the circular ring groove (105).

4. A gear transmission device for electromechanical equipment with a buffer mechanism according to claim 2, characterized in that, The buffer mechanism (2) includes a guide rod (201); the guide rod (201) is fixedly installed in the compression groove (107); a top contact rod (203) is slidably installed on the outer surface of the guide rod (201), and the top contact rod (203) can slide in the compression groove (107).

5. A gear transmission device for electromechanical equipment with a buffer mechanism according to claim 4, characterized in that, A rectangular spring (202) is fitted on the outer surface of the guide rod (201); the two ends of the rectangular spring (202) are respectively fixedly connected to one end of the inner wall of the compression groove (107) and one end of the top contact rod (203); thereby enabling the rectangular spring (202) to apply an outward spring force to the top contact rod (203).

6. A gear transmission device for electromechanical equipment with a buffer mechanism according to claim 5, characterized in that, The top contact rod (203), subjected to the spring force of the rectangular spring (202), can be pushed to contact the elliptical ring surface of the damping ring (103); the top contact rod (203) can rotate synchronously with the rotation of the drive disk (101), and can contact the stop rod (104) to be blocked during the rotation; the stop rod (104) is fixedly installed on the inner sides of both ends of the elliptical ring surface of the damping ring (103); during the rotation of the top contact rod (203) with the drive disk (101) within the elliptical ring surface of the damping ring (103), due to the elliptical structure characteristics of the elliptical ring surface of the damping ring (103), the top contact rod (203) can be gradually squeezed and slid into the compression groove (107), and can continuously compress the rectangular spring (202) during the sliding process.

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