Tooth skipping prevention structure for synchronizing wheel

Abstract

The utility model discloses a tooth skipping prevention structure for a synchronizing wheel, which comprises flanges symmetrically mounted on a driving wheel and a driven wheel and used for preventing a synchronous belt from deviating, and self-adaptive structures are further mounted on the driving wheel and the driven wheel; the self-adaptive structure comprises a limiting structure used for limiting the synchronous belt in the vertical direction, a base structure used for connecting the limiting structure with the blocking edge and an angle fine adjustment structure used for connecting the limiting structure with the base structure. By means of the mode, the tooth skipping prevention structure for the synchronous wheel is of a self-adaptive structure, the synchronous belt can still be attached to the synchronous wheel when tooth skipping happens to the synchronous wheel, and the phenomenon that abrasion is accelerated due to the fact that the synchronous belt is separated from the synchronous wheel is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission, and in particular to an anti-tooth skipping structure for a synchronous pulley. Background Technology

[0002] Synchronous pulleys are a type of transmission structure widely used in mechanical transmission systems. They are mainly used to ensure smooth power transmission, reduce slippage, and improve transmission efficiency. Power is transmitted through the meshing of synchronous belts or chains with the pulley teeth.

[0003] However, during high-speed operation, sudden load changes, or vibration, the timing belt or chain is prone to detaching from the gear teeth, resulting in tooth skipping, which leads to transmission failure. Tooth skipping will accelerate the wear of the timing belt or chain and reduce the reliability of the transmission system.

[0004] Existing methods for solving tooth skipping involve adding side guards to both sides of the timing pulley and regularly inspecting the timing belt for wear and cracks. These methods can only prevent the timing belt from running off-center in the horizontal direction. However, after prolonged use, due to material aging, the preload becomes insufficient, causing the belt teeth to detach from the pulley teeth and preventing it from holding up until the next inspection. Utility Model Content

[0005] The main technical problem solved by this utility model is to provide an anti-tooth-skipping structure for a synchronous pulley, which can keep the belt teeth in contact with the pulley teeth even when tooth skipping occurs.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: providing a tooth skipping anti-slip structure for a synchronous pulley, including baffles symmetrically installed on the driving pulley and the driven pulley to prevent the synchronous belt from running off-center, and an adaptive structure is also installed on the driving pulley and the driven pulley;

[0007] The adaptive structure includes a limiting structure for limiting the vertical direction of the synchronous belt, a base structure for connecting the limiting structure to the guard edge, and an angle fine-tuning structure for connecting the limiting structure to the base structure.

[0008] In a preferred embodiment of the present invention, the base structure includes two mounting plates, which are symmetrically mounted on both sides of the driving wheel and the driven wheel. The mounting plates are semi-circular, and the vertical edge of the mounting plate on the driving wheel is opposite to the vertical edge of the mounting plate on the driven wheel.

[0009] In a preferred embodiment of the present invention, an extension plate is provided at the vertical edge of the semi-circular mounting plate, and a connecting hole for connecting with the central shaft of the driving wheel and the driven wheel is provided at the connection between the extension plate and the mounting plate.

[0010] In a preferred embodiment of the present invention, the angle fine-tuning structure includes a plurality of limiting grooves, which are symmetrically opened in pairs on the inner corners of the upper and lower sides of the corresponding two extension plates, and circular grooves are symmetrically opened at both ends of the limiting grooves.

[0011] In a preferred embodiment of the present invention, the limiting structure includes a plurality of baffles, the baffles being disposed in the limiting grooves, and the rotating shaft at the bottom of the baffles being connected to the circular groove.

[0012] In a preferred embodiment of this utility model, a coil spring is wound around the rotating shaft.

[0013] The beneficial effects of this utility model are: This utility model provides an anti-tooth skipping structure for a synchronous pulley. This structure adopts an adaptive structure, which can keep the synchronous belt in contact with the synchronous pulley even when the synchronous pulley skips teeth, thus avoiding accelerated wear due to the synchronous belt detaching from the synchronous pulley. Attached Figure Description

[0014] Figure 1 This is a front view of a tooth-skipping prevention structure for a synchronous wheel.

[0015] Figure 2 This is a sectional view of the left side of a synchronous gear anti-tooth-skipping structure.

[0016] Figure 3 This is a front view of the limiting structure in an anti-skid tooth structure for a synchronous wheel.

[0017] The components in the attached diagram are labeled as follows: 1. Drive wheel; 2. Driven wheel; 3. Timing belt; 4. Side flange; 5. Mounting plate; 6. Extension plate; 7. Limiting groove; 8. Circular groove; 9. Baffle plate; 10. Central shaft; 11. Coil spring; 12. Rotating shaft. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0019] according to Figures 1 to 3 A tooth-skipping prevention structure for a synchronous pulley includes baffles 4 symmetrically installed on the driving pulley 1 and the driven pulley 2 to prevent the synchronous belt 3 from running off-center. The driving pulley 1 and the driven pulley 2 are also equipped with an adaptive structure that can keep the synchronous belt 3 in contact with the synchronous pulley even when the synchronous pulley skips teeth, thus avoiding accelerated wear due to the synchronous belt 3 detaching from the synchronous pulley.

[0020] The adaptive structure includes a limiting structure for limiting the vertical direction of the synchronous belt 3, a base structure for connecting the limiting structure to the guard edge 4, and an angle fine-tuning structure for connecting the limiting structure to the base structure.

[0021] The base structure includes two mounting plates 5, which are symmetrically mounted on both sides of the driving wheel 1 and the driven wheel 2. The mounting plates 5 are semi-circular, and the vertical edge of the mounting plate 5 on the driving wheel 1 is opposite to the vertical edge of the mounting plate 5 on the driven wheel 2. The mounting plates 5 are used to cooperate with the extension plate 6, thereby facilitating the installation of the extension plate 6.

[0022] An extension plate 6 is provided at the vertical edge of the semi-circular mounting plate 5, and the extension plate 6 is used for the installation of the limiting structure.

[0023] The extension plate 6 and the mounting plate 5 are provided with a connection hole for connecting with the central shaft 10 on the driving wheel 1 and the driven wheel 2. The central shaft 10 passes through the connection hole and is locked by a nut.

[0024] The angle fine-tuning structure includes several limiting grooves 7, which are symmetrically opened in pairs on the inner corners of the upper and lower sides of the corresponding two extension plates 6. The inner corners allow the baffle 9 to tilt inward, thereby limiting the synchronous belt 3.

[0025] The limiting groove 7 has symmetrical circular grooves 8 at both ends. The circular grooves 8 are used to connect the baffle 9 so that the baffle 9 can be installed in the limiting groove 7.

[0026] The limiting structure includes several baffles 9, which are correspondingly disposed in the limiting groove 7. The rotating shaft 12 at the bottom of the baffle 9 is connected to the circular groove 8. The thickness of the baffle 9 is less than the width of the opening of the limiting groove 7, so that the baffle 9 can rotate within a small range.

[0027] A coil spring 11 is wound around the rotating shaft 12. The coil spring 11 is used to return the baffle 9 to its original position. The baffle 9 is initially in contact with the lower slot side of the limiting groove 7. When the synchronous belt 3 jumps due to tooth skipping, the baffle 9 will be in contact with the higher slot side of the limiting groove 7. However, the synchronous belt 3 is always in contact with the driving wheel 1 and the driven wheel 2.

[0028] Compared with the prior art, the present invention provides an anti-tooth skipping structure for a synchronous pulley. This structure adopts an adaptive structure, which can keep the synchronous belt in contact with the synchronous pulley even when tooth skipping occurs, thus avoiding accelerated wear due to the synchronous belt detaching from the synchronous pulley.

[0029] In the description of this utility model, it should be noted that all components are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional test methods. The terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tooth-skipping prevention structure for a synchronous pulley, comprising flanges symmetrically mounted on the driving and driven pulleys to prevent the synchronous belt from running off-center, characterized in that, The driving wheel and the driven wheel are also equipped with an adaptive structure; The adaptive structure includes a limiting structure for limiting the vertical direction of the synchronous belt, a base structure for connecting the limiting structure to the guard edge, and an angle fine-tuning structure for connecting the limiting structure to the base structure.

2. The anti-tooth-skipping structure for a synchronous pulley according to claim 1, characterized in that, The base structure includes two mounting plates, which are symmetrically mounted on both sides of the driving wheel and the driven wheel. The mounting plates are semi-circular, and the vertical edge of the mounting plate on the driving wheel is opposite to the vertical edge of the mounting plate on the driven wheel.

3. The anti-tooth-skipping structure for a synchronous pulley according to claim 2, characterized in that, An extension plate is provided at the vertical edge of the semi-circular mounting plate, and a connection hole is provided at the connection between the extension plate and the mounting plate for connecting with the central shaft of the driving wheel and the driven wheel.

4. The anti-tooth-skipping structure for a synchronous pulley according to claim 3, characterized in that, The angle fine-tuning structure includes several limiting grooves, which are symmetrically opened in pairs on the inner corners of the upper and lower sides of the corresponding two extension plates. The limiting grooves are symmetrically provided with circular grooves at both ends.

5. The anti-tooth-skipping structure for a synchronous pulley according to claim 4, characterized in that, The limiting structure includes several baffles, which are correspondingly disposed in the limiting groove, and the rotating shaft at the bottom of the baffle is connected to the circular groove.

6. The anti-tooth-skipping structure for a synchronous pulley according to claim 5, characterized in that, A coiled spring is wound around the shaft.

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