An automatically tightening bucket elevator tail wheel structure

Abstract

The utility model discloses a kind of automatically tightened bucket elevator tail wheel structures, belong to bucket elevator tail wheel technical field, solve the problem that manually frequent adjustment bucket elevator tail wheel height to ensure that chain is moderately loose, while chain and tail wheel derailment situation is completely eliminated;The automatically tightened bucket elevator tail wheel structure includes two shaft sleeve sliders installed in the both ends of tail wheel shaft, two shaft sleeve sliders are slidably arranged in the front and back of bucket elevator shell;The bottom of shaft sleeve slider is connected with support rod;Support rod bottom is provided with counterweight assembly.In the utility model, counterweight assembly provides downward force, and the downward force is transmitted to two shaft sleeve sliders by support rod, and two shaft sleeve sliders pull tail wheel shaft to move downwards, so that tail wheel gear on tail wheel shaft can always keep the state of tension with chain, and chain and tail wheel gear derailment can be effectively prevented.No need for staff to check and adjust chain tension situation in real time, greatly reduce workload.

Description

Technical Field

[0001] This utility model relates to the field of bucket elevator tail wheel technology, and in particular to an automatic tightening bucket elevator tail wheel structure. Background Technology

[0002] Bucket elevators have extremely wide applications. In the pelleting industry, they are mainly used at the head of chain grate machines to lift and feed the pellets leaking from the head and tail of the chain grate machine into the rotary kiln. Because the pellets being transported are high-temperature pellets, plate chain bucket elevators are typically used.

[0003] During operation, due to fluctuations in output, the amount of material conveyed by the bucket elevator varies, making it somewhat unstable. When there is too much material, the bucket elevator becomes overloaded, which can cause the chain to loosen. This often leads to the chain derailing from the tail pulley teeth, requiring the machine to be stopped. To avoid this problem, operators need to frequently check the chain tension of the bucket elevator. If the chain is found to be too loose, the height of the tail pulley should be adjusted promptly to ensure proper chain tension and prevent derailment from the tail pulley teeth.

[0004] Therefore, existing technologies have the problem of chain loosening when the bucket elevator is overloaded, and the method of frequently adjusting the height of the tail wheel manually is labor-intensive and not suitable for continuous production. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automatically tightening bucket elevator tail wheel structure, which solves the problem of frequently adjusting the height of the bucket elevator tail wheel manually to ensure proper chain tension, while also preventing the chain from derailing from the tail wheel.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An automatic tightening tail wheel structure for a bucket elevator includes two bushing sliders installed at both ends of the tail wheel shaft. The two bushing sliders are slidably disposed on the front and rear sides of the bucket elevator housing. A support rod is connected to the bottom of the bushing sliders. A counterweight assembly is provided at the bottom of the support rod.

[0007] In this design, the counterweight assembly provides a downward force, which is transmitted through the support rod to the two bushing sliders. These sliders pull the tail pulley shaft downwards, ensuring that the tail pulley teeth on the tail pulley shaft remain taut with the chain, effectively preventing the chain from derailing. Furthermore, the counterweight assembly design eliminates the need for personnel to constantly check and adjust the chain tension, significantly reducing workload.

[0008] Furthermore, two grooves are provided on both sides of the bushing slider, and two fixing strips are provided on both the front and rear sides of the housing. The grooves of the bushing slider are slidably mounted on the fixing strips.

[0009] In this design, the bushing slider moves along the fixed bar to adjust the height of the tail wheel shaft, ensuring that the tail wheel shaft rises and falls vertically.

[0010] Furthermore, the counterweight assembly includes a counterweight frame, which has a U-shaped structure. The two ends of the U-shaped structure are movably connected to the exterior of the front and rear sides of the housing, respectively. Two bushing sliders are movably connected to the two arms of the U-shaped structure through two support rods.

[0011] In this design, the counterweight frame applies a downward force to the support rod via leverage, and the support rod then transmits this downward force to the tail wheel axle, causing the tail wheel and chain to automatically tighten. The two ends of the counterweight frame are movably mounted outside the machine housing, forming fulcrums based on the lever principle.

[0012] Furthermore, a counterweight suspension hole is provided in the middle of the U-shaped structure, and a counterweight is suspended in the counterweight suspension hole.

[0013] In this design, the middle position of the U-shaped structure is furthest from the fulcrum that is movably connected to the housing, allowing the tail wheel to be pulled downwards with a lighter counterweight, thus ensuring the chain is straight.

[0014] Furthermore, in the counterweight frame, the distance from the connection point between the U-shaped support arm and the support rod to the end point of the support arm is less than the distance from the connection point between the U-shaped support arm and the support rod to the counterweight suspension hole.

[0015] Furthermore, the mass range of the counterweight suspended on the counterweight suspension hole is 50-100kg.

[0016] The beneficial effects of this utility model are: In the automatic tensioning tail wheel structure of the bucket elevator provided by this utility model, the two ends of the counterweight frame are movably installed outside the machine casing, forming a fulcrum based on the lever principle. A counterweight is suspended in the middle of the counterweight frame. The counterweight frame applies a downward force to the support rod through the lever principle, and the support rod then transmits this downward force to the tail wheel shaft, causing the tail wheel teeth and chain to automatically tighten. Maintaining the tail wheel teeth on the tail wheel shaft in a state of constant tension with the chain effectively prevents the chain from derailing from the tail wheel teeth. Simultaneously, the counterweight frame pulls the tail wheel shaft downwards, and this pulling method has a certain buffering effect, belonging to a flexible function. When the bucket elevator load is too heavy or too light, causing changes in chain tension, the counterweight frame can adaptively rotate to follow the chain tension, avoiding a rigid action that would result in an excessive load on the chain. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the automatic tightening tail wheel structure of the bucket elevator of this utility model; Figure 2 This is a schematic diagram of the structure of the bushing slider and fixing bar in this utility model.

[0018] Figure label: 1. Bushing slider; 2. Counterweight suspension hole; 3. Fixing bar; 4. Counterweight frame; 5. Housing; 6. Support rod; 7. Slide groove; Detailed Implementation The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The specific embodiments of the present invention are described below to facilitate understanding by those skilled in the art. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they fall within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0019] like Figure 1 As shown, this embodiment provides an automatically tightening bucket elevator tail wheel structure, which solves the problem of frequently adjusting the height of the bucket elevator tail wheel manually to ensure proper chain tension, while also preventing the chain from derailing from the tail wheel; specifically, it includes: Two bushing sliders 1, support rod 6, and counterweight assembly; Two bushing sliders 1 are respectively installed at both ends of the tail wheel axle, and the two bushing sliders 1 are slidably disposed on the front and rear sides of the bucket elevator housing 5. A support rod 6 is connected to the bottom of the bushing slider 1, and a counterweight assembly is provided at the bottom of the support rod 6. The counterweight assembly provides a downward force, which is transmitted to the two bushing sliders 1 through the support rod 6. The two bushing sliders 1 pull the tail wheel axle downward, which can keep the tail wheel teeth on the tail wheel axle in a state of tension with the chain, effectively preventing the chain from derailing from the tail wheel teeth.

[0020] The counterweight assembly includes a counterweight frame 4, which has a U-shaped structure. The two ends of the U-shape are movably connected to the exterior of the front and rear sides of the housing 5. Two bushing sliders 1 are movably connected to the two arms of the U-shape via two support rods 6. The counterweight frame 4 applies a downward force to the support rods 6 through a lever principle. The support rods 6 then transmit this downward force to the tail wheel axle, causing the tail wheel and chain to automatically tighten. The two ends of the counterweight frame 4 are movably mounted on the exterior of the housing 5, forming a fulcrum based on the lever principle.

[0021] like Figure 2 As shown, the bushing slider 1 has two grooves 7 on both sides, and two fixing bars 3 are provided on both the front and rear sides of the housing 5. The grooves 7 of the bushing slider 1 are slidably mounted on the fixing bars 3. The bushing slider 1 moves along the fixing bars 3 to adjust the height of the tail wheel axle, ensuring that the tail wheel axle rises and falls vertically.

[0022] A counterweight suspension hole 2 is provided in the middle of the U-shaped structure, and a counterweight is suspended in the counterweight suspension hole 2. The middle position of the U-shaped structure is the farthest from the fulcrum that is movably connected to the housing 5, so that the tail wheel can be pulled axially downward with a lighter counterweight, thereby ensuring that the chain is straight.

[0023] In the counterweight frame 4, the distance from the connection point of the U-shaped support arm and the support rod 6 to the end point of the support arm is less than the distance from the connection point of the U-shaped support arm and the support rod 6 to the counterweight suspension hole 2.

[0024] The weight range of the counterweight suspended on counterweight suspension hole 2 is 50-100kg.

[0025] The working principle of this embodiment is as follows: In the self-tightening tail wheel structure of this embodiment, the two ends of the counterweight frame 4 are movably mounted on the outside of the housing 5, forming a fulcrum based on the lever principle. A counterweight is suspended in the middle of the counterweight frame 4. The counterweight frame 4 provides a downward force to the support rod 6 through the lever principle, and the support rod 6 then transmits this downward force to the tail wheel axle, causing the tail wheel teeth and chain to automatically tighten. Maintaining the tail wheel teeth on the tail wheel axle in a state of constant tension with the chain effectively prevents the chain from derailing from the tail wheel teeth.

[0026] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on these technical teachings disclosed in this invention without departing from the essence of this invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A self-tightening tail wheel structure for a bucket elevator, characterized in that: It includes two bushing sliders (1) installed at both ends of the tail wheel shaft, and the two bushing sliders (1) are slidably arranged on the front and rear sides of the bucket elevator housing (5); the bottom of the bushing sliders (1) is connected to a support rod (6); the bottom of the support rod (6) is provided with a counterweight assembly.

2. The automatically tightening bucket elevator tail wheel structure according to claim 1, characterized in that: The bushing slider (1) has two grooves (7) on both sides, and the housing (5) has two fixing strips (3) on both the front and rear sides. The grooves (7) of the bushing slider (1) are slidably disposed on the fixing strips (3).

3. The automatically tightening bucket elevator tail wheel structure according to claim 1, characterized in that: The counterweight assembly includes a counterweight frame (4), which has a U-shaped structure. The two ends of the U-shaped structure are movably connected to the exterior of the front and rear sides of the housing (5). The two bushing sliders (1) are movably connected to the two arms of the U-shaped structure through the two support rods (6).

4. The automatically tightening bucket elevator tail wheel structure according to claim 3, characterized in that: A counterweight suspension hole (2) is provided in the middle of the U-shaped structure, and a counterweight is suspended in the counterweight suspension hole (2).

5. The automatically tightening bucket elevator tail wheel structure according to claim 4, characterized in that: In the counterweight frame (4), the distance between the connection position of the U-shaped support arm and the support rod (6) and the end position of the support arm is less than the distance between the connection position of the U-shaped support arm and the support rod (6) and the position of the counterweight suspension hole (2).

6. The automatically tightening bucket elevator tail wheel structure according to claim 4, characterized in that: The mass range of the counterweight suspended on the counterweight suspension hole (2) is 50-100kg.

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