Synchronizing wheel with function of preventing chain from separating

Abstract

The utility model discloses a synchronizing wheel with a function of preventing a chain from disengaging, which comprises a driving gear and a driven gear, the driving gear is connected with the driven gear through a chain, and the driving gear and the driven gear are respectively provided with a chain-disengaging-preventing structure. And the chain falling prevention structure comprises a limiting structure for preventing the chain from being separated from the driving gear and the driven gear and a mounting structure for fixing the limiting structure. By means of the mode, the synchronizing wheel with the function of preventing the chain from disengaging is provided with the chain disengaging preventing structure, the chain can be prevented from disengaging from the gear after tooth skipping occurs, and the influence of tooth skipping on riding stability and efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to the field of synchronous wheels, in particular to a synchronous wheel with the function of preventing a chain from falling off. Background Art

[0002] Synchronous pulleys are usually used in conjunction with synchronous belts or chains and are widely used in various mechanical equipment, automobile engines, printers, robots and other fields. Their working principle is based on the meshing between gears, so that the rotation of one part can directly drive the other part.

[0003] During use, the synchronous wheel is prone to tooth jumping due to excessive load, improper installation, wear and damage. When the chain jumps over a gear during operation, it may cause the chain tension to be suddenly released, causing the chain to fall off, which not only affects the stability and efficiency of riding, but also increases the wear of the chain and gears. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a synchronous wheel with a function of preventing chain from falling off, which can prevent the chain from falling off the gear after tooth jumping occurs.

[0005] In order to solve the above technical problems, the present invention adopts a technical solution: providing a synchronous wheel with a function of preventing chain disengagement, comprising a driving gear and a driven gear, wherein the driving gear and the driven gear are connected by a chain, and an anti-chain disengagement structure is installed on the driving gear and the driven gear;

[0006] The anti-chain-off structure is used to prevent the chain from being separated from the limiting structure of the driving gear and the driven gear and the mounting structure for fixing the limiting structure.

[0007] In a preferred embodiment of the present invention, the mounting structure includes a shell, which is composed of two vertical plates and a connecting plate. The two vertical plates are symmetrically arranged on both sides of the driving gear and are respectively fixedly connected to the outer rings of the two first bearings at the center circular hole of the driving gear. The inner ring of the first bearing is fixedly connected to the driving gear, and the connecting plates are respectively connected to the tops of the two vertical plates.

[0008] In a preferred embodiment of the present invention, the limiting structure includes a pressure roller and a baffle, the pressure roller is installed between the two vertical plates through rotating shafts on both sides, and the baffle is arranged on both sides of the driving gear and the driven gear.

[0009] In a preferred embodiment of the present invention, a slide groove is provided on the vertical plate, a slider is installed in the slide groove, and the rotating shaft is installed on the slider via a second bearing.

[0010] In a preferred embodiment of the present invention, a spring is installed between the top of the slider and the top of the slide groove.

[0011] In a preferred embodiment of the present invention, the limiting structures installed on the driving gear and the driven gear are both perpendicular to the chain.

[0012] The beneficial effects of the utility model are as follows: the utility model provides a synchronous wheel with a function of preventing chain from falling off, and the synchronous wheel has an anti-chain-off structure, which can prevent the chain from falling off the gear after tooth jumping occurs, and reduce the impact of tooth jumping on the stability and efficiency of riding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a sectional view of the main view of a synchronous wheel with a function of preventing chain disengagement.

[0014] Figure 2 for Figure 1 A local enlarged view of the AA point in the middle.

[0015] Figure 3 This is a sectional view of the left side of a driving wheel in a synchronous wheel with a function of preventing chain disengagement.

[0016] The components in the accompanying drawings are marked as follows: 1. driving gear; 2. driven gear; 3. chain; 4. vertical plate; 5. connecting plate; 6. first bearing; 7. second bearing; 8. slide; 9. slider; 10. spring; 11. rotating shaft; 12. pressure roller; 13. baffle. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are 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 precise definition of the protection scope of the present invention.

[0018] according to Figures 1 to 3 A synchronous wheel with a chain-preventing function includes a driving gear 1 and a driven gear 2. The driving gear 1 and the driven gear 2 are connected by a chain 3. Both the driving gear 1 and the driven gear 2 are equipped with an anti-chain-off structure, which can prevent the chain 3 from falling off from the driving gear 1 and the driven gear 2 after tooth jumping occurs, thereby reducing the impact of tooth jumping on the stability and efficiency of riding.

[0019] The anti-chain-off structure is used to prevent the chain 3 from being separated from the limiting structure of the driving gear 1 and the driven gear 2 and the mounting structure for fixing the limiting structure.

[0020] The mounting structure includes a housing, and the housing covers the driving gear 1 and the driven gear 2 .

[0021] The housing is composed of two vertical plates 4 and a connecting plate 5. The two vertical plates 4 are symmetrically arranged on both sides of the driving gear 1 and are fixedly connected to the outer rings of the two first bearings 6 at the center circular hole of the driving gear 1. The inner ring of the first bearing 6 is fixedly connected to the driving gear 1. When in use, the housing is fixed to the external structure to keep it vertical. Under the action of the first bearing 6, the driving gear 1 can rotate freely.

[0022] The connecting plate 5 is connected to the top of the two vertical plates 4 respectively, so that the two vertical plates 4 and the connecting plate 5 form the shell.

[0023] The limiting structure includes a pressure roller 12 and a baffle 13. The pressure roller 12 is installed between the two vertical plates 4 through the rotating shafts 11 on both sides. The baffle 13 is arranged on both sides of the driving gear 1 and the driven gear 2. The baffle 13 and the driving gear 1 and the driven gear 2 form a groove to prevent the chain 3 from detaching. The pressure roller 12 is used to press on the chain 3 and cooperate with the baffle 13 to further prevent the chain 3 from detaching.

[0024] A slide groove 8 is provided on the vertical plate 4, a slider 9 is installed in the slide groove 8, the rotating shaft 11 is installed on the slider 9 through the second bearing 7, and a spring 10 is installed between the top of the slider 9 and the top of the slide groove 8. The spring 10 applies a downward pressure to the slider 9 so that the pressure roller 12 can press the chain 3.

[0025] The second bearing 7 allows the pressure roller 12 to rotate, preventing the pressure roller 12 from compressing the chain 3 and affecting the transmission of the chain 3 .

[0026] The limiting structures installed on the driving gear 1 and the driven gear 2 are both perpendicular to the chain 3 .

[0027] Compared with the prior art, the utility model provides a synchronous wheel with the function of preventing chain disengagement. The synchronous wheel has an anti-chain-off structure, which can prevent the chain from falling off the gear after tooth jumping occurs, reducing the impact of tooth jumping on the stability and efficiency of riding.

[0028] In the description of the present invention, it should be noted that the components are all universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or through conventional test methods. The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A synchronous wheel with a function of preventing chain disengagement, comprising a driving gear and a driven gear, wherein the driving gear and the driven gear are connected by a chain, characterized in that: The driving gear and the driven gear are both equipped with an anti-chain derailment structure; The anti-chain-off structure is used to prevent the chain from being separated from the limiting structure of the driving gear and the driven gear and the mounting structure for fixing the limiting structure.

2. The synchronous wheel having the function of preventing chain from disengaging according to claim 1, characterized in that: The mounting structure includes a shell, which is composed of two vertical plates and a connecting plate. The two vertical plates are symmetrically arranged on both sides of the driving gear and are respectively fixedly connected to the outer rings of the two first bearings at the center circular hole of the driving gear. The inner ring of the first bearing is fixedly connected to the driving gear, and the connecting plates are respectively connected to the tops of the two vertical plates.

3. The synchronous wheel with the function of preventing chain from disengaging according to claim 2, characterized in that: The limiting structure includes a pressure roller and a baffle. The pressure roller is installed between the two vertical plates through rotating shafts on both sides. The baffle is arranged on both sides of the driving gear and the driven gear.

4. The synchronous wheel with the function of preventing chain from disengaging according to claim 3, characterized in that: A slide groove is provided on the vertical plate, a slider is installed in the slide groove, and the rotating shaft is installed on the slider via a second bearing.

5. The synchronous wheel with the function of preventing chain from disengaging according to claim 4, characterized in that: A spring is installed between the top of the slider and the top of the slide groove.

6. The synchronous wheel with the function of preventing chain from disengaging according to claim 1, characterized in that: The limiting structures installed on the driving gear and the driven gear are both perpendicular to the chain.

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