Multi-speed chain tensioning device
By designing a double-speed chain tensioning device, the problems of chain slackness and inconvenient lubricant application are solved, stable chain conveyance and automatic lubricant application are achieved, and the conveyance efficiency and service life are improved.
Patent Information
- Application Number
- CN202421699991.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The existing double-speed chain lacks effective tensioning devices, which leads to loosening of the chain, affects the delivery stability, and is inconvenient to apply lubricant oil, which increases the workload of employees.
A speed-to-speed chain tensioning device is designed, including a tensioning assembly and an oil wiping assembly. The tensioning assembly adjusts the tightness of the sprocket through a motor drive, and the oil wiping assembly automatically applies lubricating oil through an oil storage box and a brush.
It realizes stable transport of the chain, reduces noise and wear, simplifies the application process of lubricant and extends the service life of the chain.
Smart Images
Figure CN223162534U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of double-speed chains, in particular to a double-speed chain tensioning device. Background Art
[0002] In early industrial production, traditional conveying methods were inefficient and could not meet the growing production scale and higher requirements for production efficiency. In order to improve the speed and accuracy of material transportation and optimize the layout and process of production lines, double-speed chains came into being.
[0003] Double-speed chain conveying equipment is a commonly used automated conveying device. Its conveying principle is based on a unique mechanical structure and movement mode. The double-speed chain consists of a chain and rollers. During the conveying process, the power device drives the chain to move, and the rollers on the chain contact the tooling plates or pallets carrying the goods. Its core principle lies in the realization of "double speed". Under normal circumstances, the moving speed of the chain itself is certain, but through special structural design, the tooling plates or pallets are driven by the chain, and their moving speed can reach an integer multiple of the chain speed, thereby achieving efficient conveying.
[0004] However, some existing double-speed chains become loose during the process of conveying pallets due to the lack of an effective tensioning device, resulting in unstable conveying, chain jumping, increased noise and increased wear. In addition, the chain needs to be lubricated regularly, usually by hand, which increases the workload of employees and the application process is relatively cumbersome. Therefore, a double-speed chain tensioning device is proposed to solve the above problems. Utility Model Content
[0005] In order to make up for the above deficiencies, the utility model provides a double-speed chain tensioning device, which aims to improve the problems in the prior art that the chain lacks a tensioning device, resulting in chain slack affecting the stability of transportation and the inconvenience of applying lubricating oil.
[0006] To achieve the above object, the utility model adopts the following technical solutions: a double-speed chain tensioning device, including an installation frame. Both the front and rear ends of the top of the installation frame are fixedly connected with side plates. At the left and right ends of the relative side of the two side plates at the bottom, guide plates are fixedly connected. At the left and right ends between the side plates, a first connecting shaft is rotatably connected. At the front and rear ends of the outer sides of the two first connecting shafts, a first sprocket is fixedly connected. The two groups of left and right first sprockets are connected through a first double-speed chain. The first double-speed chain is meshed and connected with the first sprocket on the same side. At the upper left part of the front side of the front side plate, a second motor is fixedly connected. The output end of the second motor is fixedly connected with the front end of the left first connecting shaft. A tensioning assembly is arranged in the middle of the side plate. The tensioning assembly is meshed and connected with the two first double-speed chains. The tensioning assembly is used to adjust the tightness between the left and right first sprockets and the first double-speed chain on the same side. On the right end of the side plate where the second motor is located, an oiling assembly is arranged. The relative sides of the bottoms of the two oiling assemblies are attached to the inner sides of the first double-speed chain on the same side. The oiling assembly is used to apply lubricating oil to the first double-speed chain.
[0007] As a further description of the above technical solution: the tensioning assembly includes two fixing plates. The relative ends of the two fixing plates are respectively attached to the opposite ends of the side plate. Sliding grooves are opened at the relative ends of the fixing plates. At the top of the front end of the front fixing plate, a first motor is fixedly connected. The output end of the first motor is fixedly connected with a rotating shaft. At the rear end of the rotating shaft, a first bevel gear is fixedly connected inside the front fixing plate. The first bevel gear is meshed and connected with a second bevel gear. The bottom end of the second bevel gear is fixedly connected with a lead screw. The bottom end of the lead screw is rotatably connected with the bottom end of the front sliding groove. The lead screw is threadedly connected with a moving block in the front sliding groove. In the middle of the rear sliding groove, a sliding rod is fixedly connected. The outer side of the sliding rod is slidably connected with a moving block inside the rear sliding groove. The relative ends of the two moving blocks are rotatably connected with a second connecting rod. Two tensioning sprockets are fixedly connected to the outer side of the second connecting rod.
[0008] As a further description of the above technical solution: the two tensioning sprockets are respectively located at the opposite ends of the side plate. The outer ends of the tensioning sprockets are respectively meshed and connected with the inner sides of the bottoms of the first double-speed chain on the same side.
[0009] As a further description of the above technical solution: the top of the relative ends of the two groups of left and right guide plates is arc-shaped. The radian of the guide plate can further improve the tension of the first double-speed chain.
[0010] As a further description of the above technical solution: the second connecting rod is located at the lower end of the top between the adjacent guide plates on the same side.
[0011] As a further description of the above technical solution: The two oiling components are symmetrical. The front oiling component includes an oil storage box. The front end of the oil storage box is fixedly connected to the rear end of the front side plate. The upper middle part of the front end of the oil storage box is fixedly connected with an upwardly inclined oil inlet square pipe. The top of the oil inlet square pipe is fixedly connected with a funnel outside the side plate. The bottom end of the oil storage box is fixedly connected with a brush. The bottom end of the brush is in contact with the inner side of the first double-speed chain. The inside of the oil storage box is communicated with the brush. A sliding plate is slidably connected to the middle and lower part of the oil storage box. The rear end of the sliding plate is in contact with the inner rear end of the oil storage box. The front end of the sliding plate is fixedly connected with a limiting plate outside the side plate. The top of the rear part of the limiting plate is fixedly connected with a first magnet. The middle part of the front end of the limiting plate is fixedly connected with a handle.
[0012] As a further description of the above technical solution: At the opposite ends of the side plate, support plates are fixedly connected to the bottom end of the handle. Moving plates are arranged at the top ends of the two support plates. Springs are fixedly connected to the left and right sides of the bottom end of each moving plate. The bottom ends of the two springs are fixedly connected to the top ends of the support plates on the same side. The top of the moving plate is in contact with the bottom of the limiting plate on the same side. The moving plate is slidably connected to the side plate. Limiting grooves are formed at the opposite ends of the moving plate. When the opposite ends of the sliding plate are in contact with the opposite ends inside the oil storage box, the bottom end of the limiting plate is engaged with the limiting groove on the same side.
[0013] As a further description of the above technical solution: Second magnets are fixedly connected to the opposite ends of the side plate at the corresponding positions of the first magnet.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, by starting the first motor, the two tension sprockets move downward. Cooperating with the guide plates on the same side of the tension sprockets, the tension of the first double-speed chain on the same side is increased. By moving the tension sprockets upward, the slack of the first double-speed chain can be increased, thereby completing the adjustment of the tightness and preventing the first double-speed chain from being too loose or too tight, which affects the conveying of the double-speed chain.
[0016] 2. In the utility model, lubricating oil is added into the oil storage box through the funnel and the oil inlet square pipe. The handle is pulled to separate the first magnet from the second magnet. When the position of the limiting plate corresponds to the limiting groove, the spring drives the limiting groove to be engaged with the limiting plate. The lubricating oil falls from the top of the sliding plate to the bottom end of the oil storage box and wets the brush. Then, the second motor is driven to displace the first double-speed chain, so as to apply lubricating oil to the first double-speed chain, thereby reducing wear and prolonging the service life of the double-speed chain. Description of the Drawings
[0017] Figure 1 It is the overall view of the double-speed chain tensioning device proposed by the utility model;
[0018] Figure 2 The left front view of the speed chain tensioning device proposed by the present utility model;
[0019] Figure 3 is Figure 2 the enlarged view of part A in
[0020] Figure 4 The front view of the inner rear end of the installation frame of the speed chain tensioning device proposed by the present utility model;
[0021] Figure 5 The right side sectional view of the tensioning assembly of the speed chain tensioning device proposed by the present utility model;
[0022] Figure 6 The right side sectional view of the front oiling assembly of the speed chain tensioning device proposed by the present utility model.
[0023] Legend description:
[0024] 1. Installation frame; 2. Side plate; 3. Guide plate; 4. First connecting shaft; 5. First sprocket; 6. Fixed plate; 7. Chute; 8. First motor; 9. Rotating shaft; 10. First bevel gear; 11. Second bevel gear; 12. Lead screw; 13. Slide bar; 14. Moving block; 15. Second connecting rod; 16. Tensioning sprocket; 17. Oil storage box; 18. Brush; 19. Oil inlet square pipe; 20. Funnel; 21. Slide plate; 22. Limiting plate; 23. Handle; 24. Support plate; 25. Moving plate; 26. Limiting groove; 27. Spring; 28. First magnet; 29. Second magnet; 30. Second motor; 31. First speed chain. Specific implementation manner
[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.
[0026] Refer to Figure 1 , Figure 2 and Figure 4, an embodiment provided by the present utility model: a speed chain tensioning device, which includes an installation frame 1. Both the front and rear ends of the top of the installation frame 1 are fixedly connected with side plates 2. Both the left and right ends of the bottom of the relative side of the two side plates 2 are fixedly connected with guide plates 3. Both the left and right ends between the side plates 2 are rotatably connected with a first connecting shaft 4. Both the front and rear ends of the outer sides of the two first connecting shafts 4 are fixedly connected with a first sprocket 5. The two groups of left and right first sprockets 5 are all connected through a first speed chain 31. The first speed chain 31 is meshed and connected with the first sprocket 5 on the same side. The upper left part of the front side of the front side plate 2 is fixedly connected with a second motor 30. The output end of the second motor 30 is fixedly connected with the front end of the left first connecting shaft 4. A tensioning assembly is arranged in the middle of the side plate 2. The tensioning assembly is meshed and connected with both the two first speed chains 31. The tensioning assembly is used to adjust the tightness between the left and right first sprockets 5 and the first speed chain 31 on the same side. Greasing assemblies are arranged at the right ends of the side plates 2 where the second motor 30 is located. The relative sides of the bottoms of the two greasing assemblies are both attached to the inner sides of the first speed chains 31 on the same side. The greasing assemblies are used to apply lubricating oil to the first speed chains 31.
[0027] By starting the second motor 30, the left first connecting shaft 4 and the two left first sprockets 5 are driven to rotate, so that the two first speed chains 31 generate displacement, and the two right first sprockets 5 and the first connecting shaft 4 are driven to rotate synchronously, thereby realizing the conveying of the tray. The tensioning assembly can adjust the tightness between the left and right first sprockets 5 and the first speed chain 31 on the same side, preventing the chain from being too loose or too tight, which may cause problems such as unstable conveying, chain jumping, increased noise, and aggravated wear. Through the greasing assembly, lubricating oil can be applied to the first speed chains 31 on the same side, reducing the direct contact and friction coefficient between the first speed chains 31, the first sprockets 5, and the tensioning sprockets 16.
[0028] Refer to Figure 3 , Figure 4 and Figure 5, the tensioning assembly includes two fixed plates 6. The opposite ends of the two fixed plates 6 are respectively attached to the opposite ends of the side plate 2. Sliding grooves 7 are provided at the opposite ends of the fixed plates 6. At the front top of the front fixed plate 6, a first motor 8 is fixedly connected. The output end of the first motor 8 is fixedly connected to a rotating shaft 9. The rear end of the rotating shaft 9 is fixedly connected to a first bevel gear 10 inside the front fixed plate 6. The first bevel gear 10 is meshed with a second bevel gear 11. The bottom end of the second bevel gear 11 is fixedly connected to a lead screw 12. The bottom end of the lead screw 12 is rotatably connected to the bottom end of the front sliding groove 7. The lead screw 12 is threadedly connected with a moving block 14 in the front sliding groove 7. A slide bar 13 is fixedly connected to the middle of the rear sliding groove 7. The outer side of the slide bar 13 is slidably connected with a moving block 14 inside the rear sliding groove 7. The opposite ends of the two moving blocks 14 are rotatably connected to a second connecting rod 15. Two tensioning sprockets 16 are fixedly connected to the outer side of the second connecting rod 15. The two tensioning sprockets 16 are respectively located at the opposite ends of the side plate 2. The outer ends of the tensioning sprockets 16 are respectively meshed with the inner sides of the bottom ends of the same-side first double-speed chains 31. The opposite ends of the top of the two groups of left and right guide plates 3 are arc-shaped. The radian of the guide plate 3 can further improve the tension of the first double-speed chain 31. The second connecting rod 15 is located at the lower end of the top between the same-side adjacent guide plates 3.
[0029] By moving the first motor 8 to drive the rotation of the rotating shaft 9 and the first bevel gear 10, since the first bevel gear 10 and the second bevel gear 11 are meshed, when the first bevel gear 10 rotates, it will drive the second bevel gear 11 to rotate, and the second bevel gear 11 drives the lead screw 12 to rotate, so that the front moving block 14 drives the second connecting rod 15 and the tensioning sprocket 16 to move up and down, thereby driving the rear moving block 14 to slide inside the rear sliding groove 7. The slide bar 13 prevents the second connecting rod 15 from shifting. When the tensioning sprocket 16 moves downward, it cooperates with the guide plate 3 to increase the tension of the first double-speed chain 31. When the limiting groove 26 moves upward, it cooperates with the guide plate 3 to slacken the first double-speed chain 31.
[0030] Refer to Figure 2 、 Figure 3 、 Figure 4 and Figure 6, the two oiling components are symmetrical. The front oiling component includes an oil storage box 17. The front end of the oil storage box 17 is fixedly connected to the rear end of the front side plate 2. In the upper middle part of the front end of the oil storage box 17, an oil inlet square pipe 19 is fixedly connected obliquely upward. At the top of the oil inlet square pipe 19, a funnel 20 is fixedly connected outside the side plate 2. The bottom end of the oil storage box 17 is fixedly connected to a brush 18. The bottom end of the brush 18 is in contact with the inner side of the first double-speed chain 31. The inside of the oil storage box 17 is communicated with the brush 18. A sliding plate 21 is slidably connected to the middle and lower part of the oil storage box 17. The rear end of the sliding plate 21 is in contact with the inner rear end of the oil storage box 17. The front end of the sliding plate 21 is fixedly connected to a limiting plate 22 outside the side plate 2. At the top of the rear part of the limiting plate 22, a first magnet 28 is fixedly connected. In the middle of the front end of the limiting plate 22, a handle 23 is fixedly connected. On the far ends of the side plate 2, support plates 24 are fixedly connected at the bottom end of the handle 23. At the top of both support plates 24, moving plates 25 are provided. On the left and right sides of the bottom end of the moving plate 25, springs 27 are fixedly connected. The bottom ends of the two springs 27 are fixedly connected to the top ends of the same-side support plates 24. The top of the moving plate 25 is in contact with the bottom of the same-side limiting plate 22. The moving plate 25 is slidably connected to the side plate 2. On the far ends of the moving plate 25, limiting grooves 26 are opened. When the opposite ends of the sliding plate 21 are in contact with the far ends of the inside of the oil storage box 17, the bottom end of the limiting plate 22 is engaged with the same-side limiting groove 26. On the far ends of the side plate 2, second magnets 29 are fixedly connected at the corresponding positions of the first magnet 28.
[0031] Lubricating oil can be added to the inside of the oil storage box 17 through the funnel 20 and the oil inlet square pipe 19. The handle 23 can be pulled to make the adjacent end of the sliding plate 21 in contact with the far end of the inside of the oil storage box 17. At this time, the position of the limiting plate 22 corresponds to the limiting groove 26. The spring 27 drives the moving plate 25 to move upward, so that the limiting plate 22 is engaged with the limiting groove 26. The lubricating oil falls on the brush 18 from the top of the sliding plate 21 and wets the brush 18, so that the lubricating oil on the brush 18 can be applied to the first double-speed chain 31. By pressing the moving plate 25 and pushing the handle 23, when the first magnet 28 is in contact with the corresponding second magnet 29, the sliding plate 21 prevents the lubricating oil above it from continuing to fall on the bottom end of the oil storage box 17. The adjacent ends of the first magnet 28 are all S poles, and the far ends of the second magnet 29 are all N poles. The adjacent first magnet 28 and second magnet 29 can be magnetically attracted together.
[0032] Working principle: By starting the first motor 8, the moving block 14 drives the second connecting rod 15 and the two tension sprockets 16 to move downward. In cooperation with the arc at the top of the opposite ends of the guide plates 3 on both sides of the tension sprockets 16, the connection between the left and right first connecting shafts 4 on the same side and the first double-speed chain 31 becomes closer. By moving the tension sprockets 16 upward, the meshing relationship between the first double-speed chain 31 and the left and right first sprockets 5 on the same side can be loosened, thus completing the adjustment of the tightness. Lubricating oil is added to the interior of the oil storage box 17 through the funnel 20 and the oil inlet square pipe 19. When lubricating oil needs to be applied, the handle 23 can be pulled. When the position of the limit plate 22 corresponds to the limit groove 26, the spring 27 drives the moving plate 25 to move upward, so that the limit plate 22 is engaged with the limit groove 26. The lubricating oil falls from the top of the sliding plate 21 to the bottom end of the oil storage box 17 and wets the brush 18. Then, the second motor 30 is driven to rotate the first sprocket 5, driving the first double-speed chain 31 to generate displacement, so as to apply lubricating oil to the first double-speed chain 31.
[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. Double-speed chain tensioning device, including an installation frame (1), characterized in that: Both the front and rear ends of the top of the installation frame (1) are fixedly connected with side plates (2). At the left and right ends of the bottom of the opposite sides of the two side plates (2), guide plates (3) are fixedly connected. Between the side plates (2), at the left and right ends, a first connecting shaft (4) is rotatably connected. At the front and rear ends of the outer sides of the two first connecting shafts (4), a first sprocket (5) is fixedly connected. The two groups of left and right first sprockets (5) are connected through a first double-speed chain (31). The first double-speed chain (31) is meshed and connected with the first sprocket (5) on the same side. At the upper left part of the front side of the front side plate (2), a second motor (30) is fixedly connected. The output end of the second motor (30) is fixedly connected with the front end of the left first connecting shaft (4). A tensioning assembly is arranged in the middle of the side plate (2). The tensioning assembly is meshed and connected with the two first double-speed chains (31). The tensioning assembly is used to adjust the tightness between the left and right first sprockets (5) and the first double-speed chain (31) on the same side. At the right end of the second motor (30) on the side plate (2), an oiling assembly is arranged. At the opposite sides of the bottom ends of the two oiling assemblies, they are attached to the inner sides of the first double-speed chains (31) on the same side. The oiling assembly is used to apply lubricating oil to the first double-speed chain (31).
2. The double-speed chain tensioning device according to claim 1, characterized in that: The tensioning assembly includes two fixing plates (6). The opposite ends of the two fixing plates (6) are respectively attached to the opposite ends of the side plate (2). At the opposite ends of the fixing plates (6), a chute (7) is opened. At the top of the front end of the front fixing plate (6), a first motor (8) is fixedly connected. The output end of the first motor (8) is fixedly connected with a rotating shaft (9). At the rear end of the rotating shaft (9), a first bevel gear (10) is fixedly connected inside the front fixing plate (6). The first bevel gear (10) is meshed and connected with a second bevel gear (11). At the bottom end of the second bevel gear (11), a lead screw (12) is fixedly connected. The bottom end of the lead screw (12) is rotatably connected with the bottom end of the front chute (7). The lead screw (12) is threadedly connected with a moving block (14) in the front chute (7). In the middle of the rear chute (7), a sliding rod (13) is fixedly connected. The outer side of the sliding rod (13) is slidably connected with a moving block (14) inside the rear chute (7). At the opposite ends of the two moving blocks (14), a second connecting rod (15) is rotatably connected. On the outer side of the second connecting rod (15), two tensioning sprockets (16) are fixedly connected.
3. The double-speed chain tensioning device according to claim 2, characterized in that: The two tensioning sprockets (16) are respectively located at the opposite ends of the side plate (2). The outer ends of the tensioning sprockets (16) are respectively meshed and connected with the inner sides of the bottom ends of the first double-speed chains (31) on the same side.
4. The double-speed chain tensioning device according to claim 2, wherein: At the top of the opposite ends of the two groups of left and right guide plates (3), they are arc-shaped. The radian of the guide plate (3) can further improve the tension of the first double-speed chain (31).
5. The double-speed chain tensioning device according to claim 2, characterized in that: The second connecting rod (15) is located at the lower end of the top between the adjacent guide plates (3) on the same side.
6. The double-speed chain tensioning device according to claim 1, characterized in that: The two oiling components are symmetrical. The front oiling component includes an oil storage box (17). The front end of the oil storage box (17) is fixedly connected to the rear end of the front side plate (2). The upper middle part of the front end of the oil storage box (17) is fixedly connected with an upwardly inclined oil inlet square pipe (19). The top of the oil inlet square pipe (19) is fixedly connected with a funnel (20) outside the side plate (2). The bottom end of the oil storage box (17) is fixedly connected with a brush (18). The bottom end of the brush (18) is in contact with the inner side of the first double-speed chain (31). The inside of the oil storage box (17) is communicated with the brush (18). A sliding plate (21) is slidably connected to the middle and lower part of the oil storage box (17). The rear end of the sliding plate (21) is in contact with the inner rear end of the oil storage box (17). The front end of the sliding plate (21) is fixedly connected with a limiting plate (22) outside the side plate (2). The top of the rear part of the limiting plate (22) is fixedly connected with a first magnet (28). The middle part of the front end of the limiting plate (22) is fixedly connected with a handle (23).
7. The speed-doubling chain tensioning device according to claim 6, characterized in that: At the bottom ends of the handles (23) at the opposite ends of the side plate (2), support plates (24) are fixedly connected. At the top ends of the two support plates (24), moving plates (25) are provided. At the left and right sides of the bottom end of each moving plate (25), springs (27) are fixedly connected. The bottom ends of the two springs (27) are fixedly connected to the top ends of the support plates (24) on the same side. The top of the moving plate (25) is in contact with the bottom of the limiting plate (22) on the same side. The moving plate (25) is slidably connected to the side plate (2). At the opposite ends of the moving plate (25), limiting grooves (26) are formed. When the opposite ends of the sliding plate (21) are in contact with the opposite ends inside the oil storage box (17), the bottom end of the limiting plate (22) is engaged with the limiting groove (26) on the same side.
8. The speed-doubling chain tensioning device according to claim 1 or 6, characterized in that: At the opposite ends of the side plate (2), second magnets (29) are fixedly connected at positions corresponding to the first magnets (28).