A toothed chain

Abstract

The utility model relates to chain field discloses a pointed tooth chain including pin shaft, a plurality of round grooves are opened to pin shaft outside, round groove outside rotatory connection has the sprocket plate, round groove outside rotatory connection has the guide plate, the sprocket plate and the guide plate inside all are equipped with two pinholes, the sprocket plate and the guide plate inside are equipped with round hole, the sprocket plate and the guide plate inside all are fixedly connected with two reinforcing ribs, the sprocket plate bottom fixedly connected with the circular arc, the guide plate bottom fixedly connected with the half arc, pin shaft both ends all are fixedly connected with the abutment plate, the abutment plate abuts at the sprocket plate's outside, pin shaft sliding connection in the inner wall of pinhole. In the utility model, through the arc reinforcing rib of sprocket plate and guide plate inside, can disperse stress, resist deformation when force, cooperate the axial location effect of abutment plate and staggered chain structure, and the anti -deformation ability of chain has been improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of chains, and more particularly to a toothed chain. Background Technology

[0002] Toothed chains are precision transmission components developed from traditional chains to meet the demands for smoothness, high precision, and high load-bearing capacity in mechanical transmissions. They are primarily used in industries requiring high transmission accuracy and stability, such as automotive engine timing systems, machine tool transmission mechanisms, motorcycle power transmission, agricultural machinery, and precision instruments. Structurally, it consists of chain plates with specific tooth profiles, pins, and guide components. The teeth of the chain plates precisely mesh with the teeth of the sprockets, achieving flexible transmission through hinges between the chain plates. Its main function is to transmit power and motion through the meshing of the chain plate teeth and the sprockets. Compared to ordinary chains, it can effectively reduce transmission noise, improve transmission efficiency and precision, and has a strong load-bearing capacity, making it suitable for medium-to-high speed, heavy-load, and smooth transmission applications. Existing toothed chains on the market are prone to breakage under very high-intensity operation. At the same time, their excessive mass leads to low transmission efficiency and excessive energy loss during transmission. Therefore, a toothed chain is proposed to solve the above problems. Utility Model Content

[0003] The purpose of this application is to provide a toothed chain that aims to improve the problems of toothed chains being prone to breakage and having low transmission efficiency.

[0004] The toothed chain provided in this application adopts the following technical solution: A toothed chain includes a pin shaft with multiple circular grooves on its outer surface. A toothed chain plate is rotatably connected to the outer surface of the circular grooves, and a guide plate is rotatably connected to the outer surface of the circular grooves. Both the toothed chain plate and the guide plate have two pin holes inside, and both the toothed chain plate and the guide plate have circular holes inside.

[0005] By adopting the above technical solution, the circular hole can reduce weight without affecting the rigidity of the toothed chain.

[0006] Preferably, both the toothed chain plate and the guide plate are fixedly connected with two reinforcing ribs.

[0007] By adopting the above technical solution, the reinforcing rib can improve the lateral rigidity of the guide plate and the toothed chain plate.

[0008] Preferably, the bottom of the toothed chain plate is fixedly connected with an arc.

[0009] By adopting the above technical solution, the arc can better fit the gear.

[0010] Preferably, a semi-circular arc is fixedly connected to the bottom of the guide plate.

[0011] By adopting the above technical solution, the semi-arc meshes with the circular arc to engage the gear.

[0012] Preferably, both ends of the pin are fixedly connected to abutment plates, which abut against the outer side of the toothed chain plate.

[0013] By adopting the above technical solution, the abutment plate restricts the longitudinal displacement of the toothed chain plate.

[0014] Preferably, the pin is slidably connected to the inner wall of the pin hole.

[0015] By adopting the above technical solutions, power loss during transmission can be reduced.

[0016] Preferably, the inner wall is very smooth, and the semi-circular arc is slightly higher than the circular arc.

[0017] By adopting the above technical solution, the circular arc engages the gear first, followed by the semi-circular arc, thus distributing the pressure.

[0018] Preferably, the toothed chain plate and the guide plate are arranged in an alternating pattern.

[0019] By adopting the above technical solution, this arrangement makes the toothed chain more stable and durable.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. In this utility model, the arc-shaped reinforcing ribs inside the toothed chain plate and guide plate can disperse stress and resist deformation when subjected to force. Combined with the axial limiting effect of the abutment plate and the staggered chain structure, the deformation resistance of the chain is greatly improved. 2. In this utility model, by opening round holes inside the toothed chain plate and guide plate, structural weight reduction is achieved without affecting the overall rigidity, reducing the inertial load during chain movement. The clearance fit between the pin shaft and the pin hole reduces the frictional resistance during transmission, significantly improving the power transmission efficiency. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a toothed chain proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a guide plate for a toothed chain proposed in this utility model; Figure 3 This is a schematic diagram of the reinforcing rib of a toothed chain proposed in this utility model; Explanation of reference numerals in the attached diagram: 1. Pin; 2. Circular groove; 3. Abutment plate; 4. Toothed chain plate; 5. Guide plate; 6. Pin hole; 7. Circular hole; 8. Circular arc; 9. Semi-arc; 10. Reinforcing rib. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-3 A toothed chain includes a pin 1. Multiple circular grooves 2 are spaced axially on the outer side of the pin 1. The inner walls of these grooves 2 are polished smooth. A toothed chain plate 4 is rotatably connected to the outer side of each groove 2. A guide plate 5 is also rotatably connected to the outer side of each groove 2. The toothed chain plate 4 and the guide plate 5 rotate relative to each other through the arcuate contour of the grooves 2. Two pin holes 6 are symmetrically formed inside both the toothed chain plate 4 and the guide plate 5. These two pin holes 6 are located at opposite ends of the component. A circular hole 7 for weight reduction is also formed in the middle of the interior of both the toothed chain plate 4 and the guide plate 5. This circular hole 7 does not affect the overall rigidity of the toothed chain. Reference Figures 1-3 Both the toothed chain plate 4 and the guide plate 5 have two reinforcing ribs 10 fixedly connected inside. These reinforcing ribs 10 are arc-shaped and fit tightly against the inner wall of the component, which can effectively enhance the overall structural strength of the toothed chain plate 4 and the guide plate 5 and reduce deformation under stress. Reference Figures 1-3 At the bottom of the toothed chain plate 4, an inwardly recessed arc 8 is fixedly connected along its edge contour. The radius of the arc 8 is calculated to match the tooth profile of the sprocket, which can ensure the stability during meshing.

[0024] Reference Figures 1-3 At the bottom of the guide plate 5, a downwardly extending semi-arc 9 is fixedly connected to the position corresponding to the arc 8. The arc contour of the semi-arc 9 smoothly transitions with the bottom edge of the guide plate 5, and its arc design matches the force requirements of the guide plate 5. Reference Figures 1-3 Both ends of the pin 1 are fixedly connected to circular abutment plates 3. The diameter of the abutment plate 3 is larger than the diameter of the pin hole 6, and the abutment plate 3 is tightly abutted against the outside of the toothed chain plate 4 to form an axial limiting structure to prevent the toothed chain plate 4 and the guide plate 5 from falling off the end of the pin 1. Reference Figures 1-3 The outer wall of the pin 1 and the inner wall of the pin hole 6 maintain a clearance fit, so that the pin 1 can slide flexibly along the inner wall of the pin hole 6, ensuring that the toothed chain plate 4 and the guide plate 5 can be adjusted within a certain range during transmission. Reference Figures 1-3 The semi-circular arc 9 at the bottom of the guide plate 5 is slightly higher than the circular arc 8 at the bottom of the toothed chain plate 4. This height difference design ensures that when meshing with the sprocket, the semi-circular arc 9 will contact the sprocket before the circular arc 8, forming a stepped meshing transition and reducing the impact force at the moment of meshing. Reference Figures 1-3 The toothed chain plate 4 and the guide plate 5 are staggered in the extension direction of the pin shaft 1, that is, there is a guide plate 5 between two adjacent toothed chain plates 4 and a toothed chain plate 4 between two adjacent guide plates 5. This arrangement forms a stable chain structure, ensuring that the force is evenly distributed during the transmission process.

[0025] Working Principle: When the toothed chain is working, power is transmitted to the entire chain link through pin 1. When pin 1 rotates, its outer circular groove 2, with its arc-shaped contour, drives the toothed chain plate 4 and guide plate 5 to move synchronously. Since the two are rotatably connected to the circular groove 2 and are arranged in an alternating manner, a continuous chain transmission structure can be formed. The toothed chain plate 4 and guide plate 5 are sleeved on pin 1 through pin holes 6. The flexible sliding of pin 1 within the pin holes 6 provides space for fine-tuning of position during transmission. The abutment plates 3 at both ends abut against the outer side of the toothed chain plate 4 to prevent the components from falling off along the axial direction of pin 1, ensuring the overall structural stability. During transmission, the arc-shaped reinforcing ribs 10 inside the toothed chain plate 4 and guide plate 5 fit tightly against the inner wall of the components, dispersing stress under force and effectively resisting deformation. Combined with the circular hole 7 in the middle for weight reduction, this ensures structural strength while reducing motion inertia. When the toothed chain meshes with the sprocket, the inwardly recessed arc 8 at the bottom of the toothed chain plate 4 precisely matches the sprocket tooth shape with its preset radius. The semi-arc 9 at the bottom of the guide plate 5, being slightly higher, contacts the sprocket first. The impact is reduced through a stepped meshing transition. Subsequently, the arc 8 fully meshes with the sprocket. The two work together to achieve stable transmission and avoid rigid collisions at the moment of meshing.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A toothed chain comprising a pin shaft (1), characterized in that: The pin (1) has multiple circular grooves (2) on its outside. A toothed chain plate (4) is rotatably connected to the outside of the circular groove (2). A guide plate (5) is rotatably connected to the outside of the circular groove (2). Two pin holes (6) are opened inside the toothed chain plate (4) and the guide plate (5). Circular holes (7) are opened inside the toothed chain plate (4) and the guide plate (5).

2. A sharp toothed chain according to claim 1, characterized in that: Both the toothed chain plate (4) and the guide plate (5) are fixedly connected with two reinforcing ribs (10).

3. A sharp toothed chain according to claim 1, characterized in that: The bottom of the toothed chain plate (4) is fixedly connected with an arc (8).

4. A sharp toothed chain according to claim 3, characterized in that: The bottom of the guide plate (5) is fixedly connected to a semi-circular arc (9).

5. A sharp toothed chain according to claim 1, characterized in that: Both ends of the pin (1) are fixedly connected to abutment plates (3), and the abutment plates (3) abut against the outside of the toothed chain plate (4).

6. A toothed chain according to claim 1, characterized in that: The pin (1) is slidably connected to the inner wall of the pin hole (6).

7. A sharp toothed chain according to claim 4, characterized in that: The semi-arc (9) is slightly higher than the circular arc (8).

8. A sharp toothed chain according to claim 1, characterized in that: The toothed chain plate (4) and the guide plate (5) are arranged in an alternating pattern.

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