Chain transmission assembly

Abstract

The utility model provides a chain transmission assembly which comprises a roller shaft and a bearing seat, the two ends of the roller shaft are provided with a driving section used for being connected with a motor and a transmission section used for being connected with a transmission gear, the middle of the roller shaft is provided with a working section used for installing a chain wheel, and a bearing section used for installing a bearing is arranged between the working section and the transmission section. A plummer block is arranged between the bearing section and the working section, the diameter of the plummer block is larger than that of the bearing section, a water guide groove is formed in the side, close to the plummer block, of the working section, and the water guide groove surrounds the outer circle face of the working section by a circle. The water guide groove is formed in the roller shaft, can store water in the production process and the production environment, and guides the water to the inner wall of the chain wheel when the chain wheel works, so that water volatilization is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of transmission device technology, specifically to a chain transmission component. Background Technology

[0002] The chain drive assembly is a crucial component of the shredder, responsible for transmitting power and ensuring its high-speed, stable operation. However, in actual production, tar and water generated during tobacco cutting seep into the chain drive assembly along the rollers and drive shaft, causing corrosion and damage to the bearings. Regular manual cleaning is necessary, but frequent disassembly and cleaning reduces the precision of parts and the structural stability of the drive assembly, leading to decreased performance and impacting production quality. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the prior art by proposing a chain drive assembly with a water guide groove on the roller shaft. The water guide groove can store moisture in the production process and environment, and guide the moisture to the inner wall of the sprocket when the sprocket is working, thus facilitating the evaporation of the moisture.

[0004] This utility model proposes a chain drive assembly, including a roller and a bearing housing. The two ends of the roller are configured as a drive section for connecting a motor and a transmission section for connecting a transmission gear. The middle part of the roller is configured as a working section for mounting a sprocket. A bearing support section is configured between the working section and the transmission section for mounting a bearing. A shaft platform is configured between the bearing support section and the working section. The diameter of the shaft platform is larger than the diameter of the bearing support section. A water guide groove is configured on the side of the working section near the shaft platform. The water guide groove is configured to surround the outer circumference of the working section.

[0005] The preferred technical solution of this utility model is as follows: a bearing seat is provided on the bearing section, the bearing is disposed in the bearing seat, and an oil groove is provided on the inner wall of the bearing seat for contacting the bearing, the oil groove being arranged around the inner wall of the bearing seat.

[0006] The preferred technical solution of this utility model is as follows: an oil nozzle is provided on the outer circular surface of the bearing housing, and an oil passage is provided inside the bearing housing, with the two ends of the oil passage respectively connected to the oil groove and the oil nozzle.

[0007] The preferred technical solution of this utility model is that the oil groove is located in the middle of the inner wall of the bearing seat.

[0008] The preferred technical solution of this utility model is that the depth of the water guide groove is greater than 0.4mm and less than 0.8mm.

[0009] The preferred technical solution of this utility model is as follows: the side wall of the water guide groove near the middle of the working section is inclined toward the working section, and the side wall of the water guide groove near the shaft platform is perpendicular to the central axis of the roller shaft.

[0010] The preferred technical solution of this utility model is that both the roller and the bearing housing are made of Cr12 steel.

[0011] The chain drive component of this utility model has the following beneficial effects:

[0012] 1. A water guide groove is set on the front side of the bearing. The water guide groove forms a groove on the outer surface of the roller shaft, which can be used to store water. The water guide groove is close to the working section of the roller shaft. When the roller shaft is working, the roller shaft rotates and the water in the water guide groove moves along the roller shaft to the inner wall of the sprocket. The airflow brought up by the sprocket when it is working helps the moisture to evaporate, reducing the corrosion of the bearing caused by water produced during production and water in the environment.

[0013] 2. The bearing is mounted on a bearing housing. The bearing housing has an oil groove on its inner wall that contacts the bearing. An oil nozzle is located on the outer surface of the bearing housing and is connected to the oil groove through an oil passage. The bearing can be lubricated regularly through the oil nozzle. Even if there is a small amount of water, it will not cause the bearing to rust and will extend the service life of the bearing.

[0014] 3. Both the bearing housing and the roller shaft are made of Cr12 steel to reduce the impact of grooves on the strength of the bearing housing and roller shaft. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0016] Figure 1 This is a schematic diagram of the roller in an embodiment of the present invention.

[0017] Figure 2 This is a partial schematic diagram of the roller in an embodiment of the present invention.

[0018] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 This is a schematic diagram of the bearing housing in an embodiment of this utility model.

[0020] Figure 5This is a partial schematic diagram of the bearing housing in an embodiment of this utility model.

[0021] Figure 6 This is a schematic diagram of the bearing housing being installed on the shaft according to an embodiment of the present invention.

[0022] In the diagram: 10. Roller; 11. Working section; 111. Water guide trough; 12. Drive section; 13. Transmission section; 14. Bearing section; 15. Shaft platform; 20. Bearing seat; 21. Main body; 211. Oil trough; 22. Fixing plate; 221. Oil nozzle; 23. Oil passage. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0024] Please see Figures 1 to 6 A chain drive assembly includes a roller shaft 10 and a bearing housing 20 for supporting the sprocket mounting. The roller shaft 10 has a drive section 12 and a transmission section 13 at its two ends, respectively. The roller shaft 10 is connected to a motor via the drive section 12, and a transmission gear is fixedly mounted on the transmission section 13. The middle section of the roller shaft 10 is a working section 11, and the sprocket is fixedly mounted on the working section 11 by a key. Inside the shredder, two rotating shafts are arranged parallel to each other. The transmission gear on the roller shaft 10 meshes with a gear on the other rotating shaft. The motor drives the roller shaft 10 to rotate, which in turn drives the sprocket to rotate, thereby driving the other rotating shaft to rotate and driving the shredder to perform shredding.

[0025] A bearing is fitted on the roller shaft 10 to support the rotation of the roller shaft 10. Specifically, a bearing section 14 is set between the working section 11 and the transmission section 13. The bearing is set on the bearing section 14. A shaft platform 15 is set between the bearing section 14 and the working section 11. The diameter of the shaft platform 15 is larger than the diameter of the bearing section 14. When the bearing is installed on the bearing section 14, the end face of the bearing abuts against the end face of the shaft platform 15 to provide positioning for the bearing installation.

[0026] A water guide groove 111 is provided at one end of the working section 11 near the shaft platform 15. The water guide groove 111 is arranged around the outer circle of the working section 11. The tar and moisture generated during the tobacco cutting process and the working environment can be temporarily stored in the water guide groove 111. When the roller shaft 10 rotates, the shredder works, and the liquid temporarily stored in the water guide groove 111 gradually extends to the working section 11 and enters the inner wall of the sprocket as the roller shaft 10 rotates. The airflow generated during the rotation of the sprocket accelerates the evaporation of the liquid, thereby reducing the moisture and tar on the roller shaft 10 and reducing the erosion of the roller shaft 10 by the liquid.

[0027] A water guide groove 111 is arranged around the outer circumference of the working section 11, and is located at the end of the working section 11, near the shaft platform 15. Preferably, the side wall of the water guide groove 111 near the shaft platform 15 is configured to be perpendicular to the central axis of the roller shaft 10, so that the liquid on the shaft platform 15 and the bearing section 14 can fall into the water guide groove 111. The first side wall near the middle of the working section 11 is configured as an inclined surface, with the upper end of the inclined surface inclined toward the middle of the working section 11, so that the liquid in the water guide groove 111 can enter the middle of the working section 11 and the inner wall of the sprocket along the inclined surface during the rotation of the roller shaft 10, so as to accelerate the evaporation of the liquid.

[0028] The depth of the water guide groove 111 should be greater than 0.4 mm and less than 0.8 mm. If the depth of the water guide groove 111 is too shallow, the water storage effect will be poor. If the depth of the water guide groove 111 is too deep, it will affect the structural strength of the roller 10. In this embodiment, after comprehensively considering the water storage effect, the size of the roller 10 and the structural strength, the depth of the water guide groove 111 is set to 1 mm, the water guide groove 111 is spaced 5 mm apart from the bushing, and the width of the water guide groove 111 is 5 mm.

[0029] Furthermore, the bearing is mounted on the roller 10 via a bearing housing 20. The bearing housing 20 includes a main body 21 and a fixing plate 22 for fixing the main body 21. A mounting hole is provided in the main body 21, and the bearing is disposed in the mounting hole. The inner wall of the mounting hole is connected to the outer wall of the bearing. An oil groove 211 is provided on the inner wall of the mounting hole, and the oil groove 211 surrounds the inner wall of the mounting hole. Lubricating oil is injected into the oil groove 211 to lubricate the bearing.

[0030] The bearing housing 20 has an oil passage 23 inside and an oil nozzle 221 on its outer surface. The oil passage 23 connects the oil groove 211 and the oil nozzle 221 at both ends. Lubricating oil can be periodically injected into the oil groove 211 through the oil nozzle 221 and the oil passage 23 to keep the bearing in a lubricated state, thereby providing continuous lubrication and slowing down bearing corrosion. Specifically, the oil nozzle 221 is located on the outer circumferential surface of the main body 21 to avoid affecting the installation of the fixing plate 22.

[0031] Preferably, the oil groove 211 is centrally located within the mounting hole to ensure the overall strength of the bearing housing 20.

[0032] In this embodiment, to ensure the strength of the roller shaft 10 and the bearing housing 20, both the roller shaft 10 and the bearing housing 20 are made of Cr12 steel.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A chain drive assembly, characterized in that, The roller shaft (10) includes a roller shaft (10) and a bearing housing (20). The two ends of the roller shaft (10) are configured as a drive section (12) for connecting a motor and a transmission section (13) for connecting a transmission gear. The middle part of the roller shaft (10) is configured as a working section (11) for installing a sprocket. Between the working section (11) and the transmission section (13) is configured a bearing section (14) for installing a bearing. A shaft platform (15) is provided between the bearing section (14) and the working section (11). The diameter of the shaft platform (15) is larger than the diameter of the bearing section (14). A water guide groove (111) is provided on the side of the working section (11) near the shaft platform (15). The water guide groove (111) surrounds the outer surface of the working section (11).

2. The chain drive assembly according to claim 1, characterized in that, The bearing section (14) is provided with a bearing housing (20), and the bearing is disposed in the bearing housing (20). The bearing housing (20) is provided with an oil groove (211) on the inner wall for contacting the bearing. The oil groove (211) surrounds the inner wall of the bearing housing (20) for one circumference.

3. A chain drive assembly according to claim 2, characterized in that, The bearing housing (20) has an oil nozzle (221) on its outer circular surface and an oil passage (23) inside the bearing housing (20). The two ends of the oil passage (23) are respectively connected to the oil groove (211) and the oil nozzle (221).

4. A chain drive assembly according to claim 2, characterized in that, The oil groove (211) is located in the middle of the inner wall of the bearing seat (20).

5. A chain drive assembly according to claim 1, characterized in that, The depth of the water guide channel (111) is greater than 0.4 mm and less than 0.8 mm.

6. A chain drive assembly according to claim 5, characterized in that, The water guide groove (111) is inclined toward the working section (11) on one side wall near the middle of the working section (11), and the water guide groove (111) is perpendicular to the central axis of the roller (10) on one side wall near the shaft platform (15).

7. A chain drive assembly according to claim 1, characterized in that, Both the roller (10) and the bearing housing (20) are made of Cr12 steel.

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