Driven chain wheel convenient to lubricate

Abstract

The utility model belongs to the technical field of driven chain wheels, and particularly relates to a driven chain wheel convenient to lubricate, which comprises a wheel body, wheel teeth are annularly distributed on the surface of the wheel body, lubricating holes are formed in the surfaces of the wheel teeth, lubricating cotton slivers are connected to the inner walls of the lubricating holes in an embedded mode, and the other sides of the lubricating cotton slivers are connected to sponge rings. The placing groove is formed in the surface of the side wall of the wheel body, the surface, on the same side as the placing groove, of the wheel body is connected with a limiting rod, the surface of the limiting rod is connected with a connecting disc in a clamped mode, the rear end of the connecting disc is connected with a sealing ring, the inner wall of the sealing ring abuts against a sponge ring, and the surface of the sponge ring is connected to the connecting disc. The meshed part of the driven chain wheel and the chain is lubricated through the cooperation of the sponge rings and the lubricating cotton strips which are arranged in the placing grooves formed in the wheel body and the wheel teeth and the lubricating holes, so that the friction between the driven chain wheel and the chain is reduced, and the service life is further prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of passive sprocket technology, specifically relating to a passive sprocket that is easy to lubricate. Background Technology

[0002] A driven sprocket, connected to the driving sprocket (the sprocket that transmits power) via a chain, receives power from the driving sprocket and changes the transmission direction or ratio to achieve power transmission. Chain drive is a mechanical transmission method, mainly composed of a driving sprocket, a driven sprocket, and a chain. Its working principle is to transmit power from the driving sprocket to the driven sprocket via the chain, thus rotating the driven sprocket. However, this device has the following drawbacks: During operation, the driven sprocket will rub against the chain or other transmission components. This friction not only increases power consumption but also accelerates the wear of the sprocket and chain. Long-term friction will cause gradual wear on the surfaces of the driven sprocket and chain, and may even lead to serious damage. Utility Model Content

[0003] The purpose of this invention is to provide a passive sprocket that is easy to lubricate, in order to solve the problem that in the existing equipment, the passive sprocket will rub against the chain or other transmission components during operation. This friction not only increases power consumption, but also accelerates the wear of the sprocket and chain. Long-term friction will cause the surface of the passive sprocket and chain to gradually wear down, and may even cause serious damage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a passive sprocket that is easy to lubricate, comprising: a wheel body, with teeth distributed in an annular pattern on the surface of the wheel body, lubrication holes formed on the surface of the teeth, a lubricating cotton strip fitted into the inner wall of the lubrication hole, a sponge ring connected to the other side of the lubricating cotton strip, a placement groove fitted into the surface of the sponge ring, the placement groove being formed on the side wall surface of the wheel body, and a limiting rod connected to the same side surface of the wheel body and the placement groove, a connecting disc engaging with the surface of the limiting rod, a sealing ring connected to the rear end of the connecting disc, the inner wall of the sealing ring abutting against the sponge ring, and the surface of the sponge ring being connected to the connecting disc.

[0005] In order to facilitate the placement of lubricating cotton strips by utilizing the lubrication holes spaced apart on the gear teeth, as a preferred embodiment of the passive sprocket for easy lubrication of this utility model, the lubrication holes spaced apart on the annularly distributed gear teeth have a shape and size that conforms to the lubricating cotton strip.

[0006] In order to fix the position of the lubricating cotton strip and the sponge ring by using the cooperation of the placement groove and the lubrication hole, as a preferred embodiment of the passive sprocket of this utility model that facilitates lubrication, the seven lubricating cotton strips are distributed in a ring on the surface of the sponge ring and their shape and size are consistent with the lubrication hole and the placement groove.

[0007] In order to fix the position of the connecting disc on the wheel body using the limiting rod, as a preferred embodiment of the passive sprocket of this utility model that is easy to lubricate, the wheel body, the limiting rod and the connecting disc form a snap-fit ​​connection structure, with the two limiting rods located opposite each other on both sides of the placement groove.

[0008] In order to facilitate the engagement and fixation of the connecting plate with the limiting rod by utilizing the through groove on the connecting plate, as a preferred embodiment of the passive sprocket for easy lubrication of this utility model, the connecting plate has an annular structure on one side and circular through grooves on both sides of its side wall, the shape and size of which are consistent with the limiting rod.

[0009] In order to prevent impurities from corroding the outer wall of the sponge ring by using a sealing ring, the sealing ring, which is a preferred embodiment of the passive sprocket for easy lubrication in this invention, is made of rubber and is an integral structure consisting of two rings of the same size and shape as the inner and outer rings of the sponge ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] By using the placement grooves and lubrication holes on the wheel body and teeth, the sponge ring and lubricating cotton strip placed in them are used to lubricate the meshing parts of the driven sprocket and the chain, thereby reducing the friction between them and extending their service life.

[0012] The sponge ring is fixed in place by interlocking with the connecting plate on one side of the sponge ring and the limiting rod connected to the wheel body. This not only fixes its position but also facilitates the disassembly, replacement, and cleaning of the sponge ring and the placement groove. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This is a top view of the structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0018] Figure 5 This is an enlarged structural diagram of the sponge ring and connecting disc of this utility model.

[0019] In the diagram: 1. Wheel body; 2. Wheel teeth; 3. Lubrication hole; 4. Lubricating cotton strip; 5. Sponge ring; 6. Placement groove; 7. Limiting rod; 8. Connecting plate; 9. Sealing ring. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 The present invention provides the following technical solution: a passive sprocket that is easy to lubricate, comprising: a wheel body 1, with teeth 2 distributed in an annular pattern on the surface of the wheel body 1, lubrication holes 3 formed on the surface of the teeth 2, a lubrication cotton strip 4 fitted into the inner wall of the lubrication hole 3, the other side of the lubrication cotton strip 4 connected to a sponge ring 5, the surface of the sponge ring 5 fitted into a placement groove 6, the placement groove 6 being formed on the side wall surface of the wheel body 1, and a limiting rod 7 connected to the same side surface of the wheel body 1 and the placement groove 6, the surface of the limiting rod 7 engaging with a connecting disc 8, the rear end of the connecting disc 8 connected to a sealing ring 9, the inner wall of the sealing ring 9 abutting against the sponge ring 5, and the surface of the sponge ring 5 connected to the connecting disc 8.

[0022] Preferably, the surface of the annularly distributed gear teeth 2 has lubrication holes 3 at intervals, the shape and size of which are consistent with the lubrication cotton strip 4.

[0023] In practical use, the lubrication holes 3 on the surface of the gear teeth 2 facilitate the insertion of lubricating cotton strips 4, thereby lubricating the intersection of the meshing chain and the gear teeth 2.

[0024] Preferably, seven lubricating cotton strips 4 are distributed in a ring on the surface of the sponge ring 5, and their shape and size correspond to the lubrication hole 3 and the placement groove 6.

[0025] In practical use, the placement groove 6 on one side of the wheel body 1 and the lubrication holes 3 on the annularly distributed teeth 2 on its surface facilitate the placement of lubricating cotton strips 4 and sponge rings 5 ​​soaked in lubricating medium, so that when the teeth 2 mesh and rotate with the chain, the lubricating medium slowly seeps out to lubricate the intersection of the two.

[0026] Preferably, the wheel body 1, the limiting rod 7 and the connecting plate 8 form a snap-fit ​​connection structure, with the two limiting rods 7 located opposite each other on both sides of the placement groove 6.

[0027] In practical use, the two through slots on the side wall of the connecting plate 8 are used to engage and fix it to the two limit rods 7 connected to one side of the wheel body 1.

[0028] Preferably, the connecting plate 8 has a ring-shaped structure on one side and its sidewall has two circular through slots on both sides, the shape and size of which are consistent with the limiting rod 7.

[0029] In practical use, when placing the sponge ring 5 and the lubricating cotton strip 4, the connecting disc 8 connected to the other side of the sponge ring 5 and the sealing ring 9 connected to its surface are fitted onto the sponge ring 5.

[0030] Preferably, the sealing ring 9 is made of rubber and is an integral structure consisting of two rings of the same size and shape as the inner and outer rings of the sponge ring 5.

[0031] In practical use, the connecting disc 8 connected to the other side of the sponge ring 5 and the sealing ring 9 connected to its surface fit together and are sleeved on the sponge ring 5 to block the sponge ring 5 from the outside world and prevent the sponge ring 5 from being corroded by external dust.

[0032] Working principle: The placement groove 6 on one side of the wheel body 1 and the lubrication holes 3 on the annularly distributed teeth 2 on its surface facilitate the placement of lubricating cotton strips 4 and sponge rings 5 ​​soaked in lubricating medium. When the teeth 2 mesh and rotate with the chain, the lubricating medium slowly seeps out to lubricate the intersection of the two. At the same time, when placing the sponge rings 5 ​​and lubricating cotton strips 4, the connecting plate 8 connected to the other side of the sponge ring 5 and the sealing ring 9 connected to its surface are fitted onto the sponge ring 5. The two through grooves on the side wall of the connecting plate 8 are engaged and fixed to the two limiting rods 7 connected to one side of the wheel body 1, thereby fixing the position of the sponge ring 5 on the placement groove 6. When the teeth 2 rotate, the lubricating cotton strips 4 embedded on its surface abut against the chain to lubricate the intersection of the two. At the same time, the connected sponge rings 5 ​​supply lubricating medium to the lubricating cotton strips 4. During use, the connecting plate 8, which is engaged and fixed on the wheel body 1, can be disassembled periodically to facilitate the removal and replacement of the sponge rings 5 ​​embedded in the placement groove 6.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A passive sprocket that is easy to lubricate, comprising: The wheel body (1) is characterized in that: the surface of the wheel body (1) is distributed with annular teeth (2), the surface of the teeth (2) is provided with lubrication holes (3), the inner wall of the lubrication holes (3) is fitted with a lubricating cotton strip (4), the other side of the lubricating cotton strip (4) is connected to a sponge ring (5), the surface of the sponge ring (5) is fitted with a placement groove (6), the placement groove (6) is provided on the side wall surface of the wheel body (1), and the surface of the wheel body (1) and the placement groove (6) on the same side is connected with a limiting rod (7), the surface of the limiting rod (7) is engaged with a connecting plate (8), the rear end of the connecting plate (8) is connected with a sealing ring (9), the inner wall of the sealing ring (9) abuts against the sponge ring (5), and the surface of the sponge ring (5) is connected to the connecting plate (8).

2. The passive sprocket for easy lubrication according to claim 1, characterized in that: The annularly distributed gear teeth (2) have lubrication holes (3) spaced apart on their surface, the shape and size of which are consistent with the lubrication cotton strip (4).

3. A passive sprocket for easy lubrication according to claim 1, characterized in that: The seven lubricating cotton strips (4) are distributed in a ring on the surface of the sponge ring (5), and their shape and size are consistent with the lubrication hole (3) and the placement groove (6).

4. A passive sprocket for easy lubrication according to claim 1, characterized in that: The wheel body (1), the limiting rod (7) and the connecting plate (8) form a snap-fit ​​connection structure, with the two limiting rods (7) located opposite each other on both sides of the placement groove (6).

5. A passive sprocket for easy lubrication according to claim 1, characterized in that: The connecting plate (8) has a ring-shaped structure on one side and two circular through slots on its side wall, the shape and size of which are consistent with the limiting rod (7).

6. A passive sprocket for easy lubrication according to claim 1, characterized in that: The sealing ring (9) is made of rubber and is an integral structure consisting of two rings of the same size and shape as the inner and outer rings of the sponge ring (5).

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