Overhang doctor blade tensioning device

Abstract

The utility model relates to a kind of cantilevered scraper tensioning device, including cantilever, the shaft is set on the cantilever, bearing seat is set on the cantilever of the both ends of the shaft, the shaft is set on the cantilever by bearing seat, guide rail is set on the cantilever of the both sides, bearing seat is set on the cantilever by guide rail;The both sides of the shaft are provided with a sprocket, the sprocket is provided with chain matched therewith, scraper is set on the chain, the scraper is spaced apart and set on the chain;The both sides of the cantilever are also provided with cylinder base, the cylinder base is set on the rear side of guide rail, cylinder is set on the cylinder base, the movable end of the cylinder is connected with the side of bearing seat;The utility model has the beneficial effects of: pass can make the shaft more stable and stable in moving process, effectively reduce shaking, to reduce the wear and tear of chain, prolong the service life of chain.

Description

Technical Field

[0001] This utility model relates to the field of cantilever scraper tensioning technology, and in particular to a cantilever scraper tensioning device. Background Technology

[0002] In the operation of a material handling machine, the scraper device is a key material handling component. It is usually driven by a chain drive system to rotate the scraper, thereby achieving continuous material handling. To ensure that the scraper chain maintains proper tension during operation, a tensioning device is usually used to prevent the chain from jumping or falling off due to slack, ensuring that the scraper device can work continuously and stably. However, traditional tensioning devices have certain limitations. They usually use a hydraulic cylinder acting at the middle position of the scraper device to adjust the chain tension by driving the movement of the scraper device. In practical applications, this design can easily cause the scraper device to sway on both sides during the movement control process. This swaying not only affects the stability of the material handling process, but also causes additional external impact on the chain. This additional external impact will accelerate chain wear, reduce its service life, and may even lead to chain failure, increasing maintenance costs and downtime. Utility Model Content

[0003] To overcome the shortcomings of the existing problems mentioned above, this utility model provides a cantilever scraper tensioning device that can stably tension the chain.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a cantilever scraper tensioning device includes a cantilever, a rotating shaft is provided on the cantilever, bearing seats are provided on the cantilever at both ends of the rotating shaft, the rotating shaft is mounted on the cantilever through the bearing seats, guide rails are provided on the cantilever on both sides, and the bearing seats are mounted on the cantilever through the guide rails; sprockets are provided on both sides of the rotating shaft, chains are provided on the sprockets and cooperating with them, scrapers are provided on the chains, and the scrapers are spaced apart on the chains; hydraulic cylinder bases are also provided on both sides of the cantilever, the hydraulic cylinder bases are located behind the guide rails, hydraulic cylinders are provided on the hydraulic cylinder bases, and the movable end of the hydraulic cylinder is connected to one side of the bearing seat.

[0005] Preferably, a connecting plate is provided between the scraper and the chain. The connecting plate is located on the chain joints on both sides, and the two ends of the scraper are connected to the chains on both sides through the connecting plate.

[0006] Preferably, the guide rail is disposed at the upper and lower ends of the bearing housing, and the upper and lower ends of the bearing housing are provided with sliding grooves that cooperate with the guide rail.

[0007] The beneficial effects of this utility model are: it enables the rotating shaft to move more smoothly and stably, effectively reducing shaking, thereby reducing chain wear and extending the chain's service life. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a side view structural diagram of the present invention; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a front structural sectional view of the present invention; In the diagram, 1. cantilever; 2. shaft; 3. bearing seat; 4. guide rail; 5. sprocket; 6. chain; 7. scraper; 8. cylinder base; 9. cylinder; 10. connecting plate. Detailed Implementation

[0010] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0011] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0012] according to Figures 1-3 As shown, a cantilever scraper tensioning device includes a cantilever 1, a rotating shaft 2 mounted on the cantilever 1, bearing seats 3 mounted on the cantilever 1 at both ends of the rotating shaft 2, the rotating shaft 2 being mounted on the cantilever 1 via the bearing seats 3, guide rails 4 mounted on the cantilever 1 on both sides, the bearing seats 3 being mounted on the cantilever 1 via the guide rails 4; sprockets 5 are mounted on both sides of the rotating shaft 2, chains 6 cooperating with the sprockets 5 are mounted on the sprockets 5, scrapers 7 are mounted on the chains 6, the scrapers 7 being spaced apart on the chains 6; hydraulic cylinder bases 8 are also mounted on both sides of the cantilever 1, the hydraulic cylinder bases 8 are located behind the guide rails 4, hydraulic cylinders 9 are mounted on the hydraulic cylinder bases 8, the movable end of the hydraulic cylinder 9 being connected to one side of the bearing seat 3.

[0013] A connecting plate 10 is provided between the scraper 7 and the chain 6. The connecting plate 10 is set on the chain joints of the chains 6 on both sides. Through the connecting plate 10, the two ends of the scraper 7 are connected to the chains 6 on both sides.

[0014] The guide rail 4 is disposed at the upper and lower ends of the bearing seat 3, and the upper and lower ends of the bearing seat 3 are provided with sliding grooves that cooperate with the guide rail 4.

[0015] In practical use, the hydraulic cylinders 9 on both sides push the bearing seat 3, causing the moving bearing seat 3 to move along the guide rail 4, which can stably drive the rotating shaft 2 to move, realize the tensioning of the chain 6, ensure that the chain maintains appropriate tension during operation, and prevent slack; the setting of the hydraulic cylinders 9 on both sides can prevent the rotating shaft 2 from swaying left and right when moving, and the setting of the guide rail 4 can make the movement of the rotating shaft 2 more stable, while preventing the rotating shaft 2 from swaying up and down.

[0016] This design is ingenious. By using the hydraulic cylinders 9 on both sides to push and move the rotating shaft 2, the shaft 2 moves more smoothly and stably, effectively reducing shaking. By placing the bearing seat 3 on the guide rail 4, the smoothness and stability of the rotating shaft 2's movement are further ensured, thereby reducing chain wear, extending the chain's service life, and ensuring the performance and efficiency of the entire cantilever scraper tensioning device.

[0017] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A cantilever scraper tensioning device, characterized in that: The device includes a cantilever (1), on which a rotating shaft (2) is provided. Bearing seats (3) are provided on the cantilever (1) at both ends of the rotating shaft (2). The rotating shaft (2) is mounted on the cantilever (1) through the bearing seats (3). Guide rails (4) are provided on the cantilever (1) on both sides. The bearing seats (3) are mounted on the cantilever (1) through the guide rails (4). Sprockets (5) are provided on both sides of the rotating shaft (2). Chains (6) that cooperate with the sprockets (5) are provided on the sprockets (5). Scrapers (7) are provided on the chains (6). The scrapers (7) are spaced apart on the chains (6). Hydraulic cylinder bases (8) are also provided on both sides of the cantilever (1). The hydraulic cylinder bases (8) are located on the rear side of the guide rails (4). Hydraulic cylinders (9) are provided on the hydraulic cylinder bases (8). The movable end of the hydraulic cylinder (9) is connected to one side of the bearing seat (3).

2. The cantilever scraper tensioning device according to claim 1, characterized in that: A connecting plate (10) is provided between the scraper (7) and the chain (6). The connecting plate (10) is set on the chain link of the two sides of the chain (6). Through the connecting plate (10), the two ends of the scraper (7) are connected to the two sides of the chain (6).

3. The cantilever scraper tensioning device according to claim 1, characterized in that: The guide rail (4) is set at the upper and lower ends of the bearing seat (3), and the upper and lower ends of the bearing seat (3) are provided with sliding grooves that cooperate with the guide rail (4).

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