Chain wheel convenient to disassemble and replace for bucket elevator
By designing a detachable and connected split sprocket, the problems of inconvenient operation and high cost of existing bucket elevator sprockets are solved, and the reuse of individual replacement gear teeth and gear teeth is realized, reducing production costs and operation difficulties.
Patent Information
- Application Number
- CN202421782846.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The head sprocket design of existing bucket elevators has problems such as inconvenient operation and high production costs, especially when the gear teeth are worn or broken, and the worn gear ring cannot be used again.
A split sprocket is designed, including removable connections of gear teeth and hubs, which consist of gear tooth seats, half teeth and slots, and can be detachable connections through fasteners, allowing individual replacement of damaged gear teeth and continued use by reverse mounting of worn half teeth.
It realizes easy disassembly and replacement of gear teeth, reduces operational difficulty and production costs, and further saves costs through the reuse of gear teeth, and improves operating efficiency through simplified disassembly and assembly processes.
Smart Images
Figure CN222960542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vertical conveying equipment, and particularly relates to a sprocket for a bucket elevator which is convenient for disassembly and replacement. Background Art
[0002] A bucket elevator is a vertical lifting equipment suitable for transporting various bulk materials and fragmented materials, and is widely used in fields such as chemical materials, metallurgy, food, cement, etc. Bucket elevators are divided into three types: ring chain, plate chain and belt. Among them, the plate chain elevator relies on the chain as the transmission part and is driven by the head sprocket. The force is mainly borne by the teeth of the head sprocket. And due to the special use of the plate chain elevator, the head sprocket always rotates towards the discharge end, and the wear of the teeth mainly occurs on one side of the teeth.
[0003] In the prior art, there is a split design for the head sprocket, including an inner and outer wheel body and a tooth ring. However, the entire tooth ring is a whole tooth ring or evenly divided into three or four pieces. When a certain tooth is worn or broken due to external force, it is necessary to replace the entire tooth ring or a piece of the tooth ring, which is inconvenient to operate, and the worn tooth ring cannot be reused, resulting in a relatively high production cost. Content of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, and provides a sprocket for a bucket elevator which is convenient for disassembly and replacement, can conveniently replace a single damaged tooth, and can continue to be used after reversing the direction of the worn tooth, reducing the operation difficulty and production cost.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A sprocket for a bucket elevator which is convenient for disassembly and replacement, includes a hub. A plurality of teeth are detachably connected to the outer circumference of the hub, and the plurality of teeth are evenly distributed at intervals along the circumferential direction of the hub. Each tooth includes a tooth seat and two half teeth. A clamping groove is provided at the inner end of the tooth seat. The tooth seat is clamped onto the hub disk surface through the clamping groove, and the detachable connection between the tooth seat and the hub is realized through fasteners. On both sides of the outer end of the tooth seat, there are respectively half teeth protruding radially outwards, and the two half teeth are arranged oppositely; the half teeth of two adjacent teeth are butted against each other to form a complete tooth.
[0007] As a preferred solution of the above sprocket, a plurality of support protrusions are evenly arranged at intervals along the circumferential direction on the outer circumference of the hub disk surface. The clamping groove of the tooth seat of each tooth is embedded into the hub disk surface from the outside to the inside at the position between two adjacent support protrusions, and there is an overlapping section between both ends of the tooth seat and two adjacent support protrusions. The shapes of the two sides of the clamping groove of the tooth seat at the overlapping parts with the two support protrusions respectively match the shapes of the two support protrusions.
[0008] As a preferred solution of the above sprocket, perforations are respectively formed on the tooth seat and the hub disk surface. The fastener includes a bolt and a nut. The bolt passes through the perforations on the tooth seat and the hub disk surface at the same time and then the nut is tightened to realize the locking connection between the two.
[0009] As a preferred solution of the above sprocket, a plurality of stress relief holes are formed on the hub disk surface. The stress relief holes are located inside a plurality of teeth and are evenly distributed along the circumferential direction of the hub disk surface.
[0010] As a preferred solution of the above sprocket, the structural dimensions of a plurality of teeth are the same.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] A sprocket for a bucket elevator provided by the present utility model is designed as a split structure, including a hub and a plurality of teeth detachably connected to the outer circumference of the hub. When a certain tooth is damaged, only the damaged tooth needs to be removed and replaced, saving production costs. And because two opposite half teeth are provided on both sides of the outer end of each tooth, when one of the half teeth of a certain tooth is worn, the tooth can be removed and installed in the reverse direction, and the other unworn half tooth of the tooth can be installed on the stress-bearing side, so that the tooth can be used continuously, realizing the reuse of the tooth and further saving production costs. In addition, the tooth and the hub are locked and connected by matching bolts and nuts. When disassembling and assembling the tooth, only the nut needs to be turned, and the operation is convenient, fast, time-saving and labor-saving. Description of the Drawings
[0013] Figure 1 is the three-dimensional assembly drawing of the present utility model.
[0014] Figure 2 is the three-dimensional drawing of the hub of the present utility model.
[0015] Figure 3 is the three-dimensional drawing of the tooth of the present utility model.
[0016] In the figure, 1 is a bolt, 2 is a hub, 3 is a tooth, 21 is a stress relief hole, 22 is a hub perforation, 23 is a support protrusion, 31 is a card slot, 32 is a tooth perforation, 33 is a half tooth, and 34 is a tooth seat. Detailed Embodiment
[0017] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0018] Please refer to Figures 1 to 3 , this embodiment discloses a sprocket for a bucket elevator that is convenient for disassembly and replacement, including a hub 2. A plurality of teeth 3 are detachably connected to the outer circumference of the hub 2. The plurality of teeth 3 are evenly distributed at intervals along the circumferential direction of the hub 2. Each tooth 3 includes a tooth seat 34 and two half teeth 33. A slot 31 is provided at the inner end of the tooth seat 34. The tooth seat 34 is snapped onto the disk surface of the hub 2 through the slot 31, and the detachable connection between the tooth seat 34 and the hub 2 is realized through fasteners. A plurality of support protrusions 23 are evenly arranged at intervals along the circumferential direction on the outer circumference of the disk surface of the hub 2. The slot 31 of the tooth seat 34 of each tooth 3 is inserted into the disk surface of the hub 2 from the outside to the inside from the position between two adjacent support protrusions 23, and there is an overlapping section between both ends of the tooth seat 34 and two adjacent support protrusions 23. The shapes of both sides of the slot 31 of the tooth seat 34 at the overlapping positions with the two support protrusions 23 respectively match the shapes of the two support protrusions 23. The circumferential positioning of the two half teeth 33 on the corresponding tooth 3 is carried out by two adjacent support protrusions 23 on the hub 2, effectively preventing the tooth 3 from displacing in the circumferential direction of the hub 2 and ensuring the accuracy of the installation position of the tooth 3 on the hub 2.
[0019] Perforations are respectively provided on the tooth seat 34 and the disk surface of the hub 2. The perforation on the disk surface of the hub 2 is the hub perforation 22, and the perforation on the tooth seat 34 is the tooth perforation 32. The fasteners include a bolt 1 and a nut. By passing the bolt 1 through the perforations on the tooth seat 34 and the disk surface of the hub 2 at the same time and then tightening the nut, the locking connection between the two is realized. On both sides of the outer end of the tooth seat 34, there are respectively provided half teeth 33 protruding radially outwards. The two half teeth 33 are arranged oppositely; the half teeth 33 of two adjacent teeth 3 are butted against each other to form a complete tooth. The structural dimensions of the plurality of teeth 3 are the same, having interchangeability and facilitating the batch production of the teeth 3.
[0020] A plurality of stress relief holes 21 are provided on the disk surface of the hub 2. The stress relief holes 21 are located inside the plurality of teeth 3 and are evenly distributed along the circumferential direction of the disk surface of the hub 2. The provision of the stress relief holes 21 can release stress and at the same time reduce the weight of the hub 2.
[0021] For the sprocket provided in this embodiment, when a certain tooth 3 is damaged by external force, only a single tooth 3 needs to be directly replaced, saving costs. Since the sprocket rotates unidirectionally during use, the wear of the tooth 3 mainly occurs on one side of the tooth. In this embodiment, two opposite half-teeth 33 are provided on both sides of the outer end of each tooth 3. When the half-tooth 33 on the stressed side of a certain tooth 3 is worn, the tooth 3 can be removed and installed in the reverse direction, and the other unworn half-tooth 33 of the tooth 3 can be installed on the stressed side, so that the tooth 3 can continue to be used, realizing the reuse of the tooth 3 and greatly saving the production cost. In addition, when disassembling and assembling the tooth 3, only the nut needs to be turned, and the operation is convenient, fast, time-saving and labor-saving.
[0022] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A sprocket for a bucket elevator that is easy to disassemble and replace, comprising a hub, characterized in that: A plurality of gear teeth are detachably connected to the outer circumference of the wheel hub, and the plurality of gear teeth are evenly spaced along the circumference of the wheel hub. Each gear tooth comprises a gear tooth seat and two half teeth. A slot is provided at the inner end of the gear tooth seat, and the gear tooth seat is snapped into the wheel hub disc through the slot, and a detachable connection between the gear tooth seat and the wheel hub is achieved through fasteners. Half teeth protruding radially outward are respectively provided on both sides of the outer end of the gear tooth seat, and the two half teeth are arranged opposite to each other; the half teeth of two adjacent gear teeth are connected to form a full tooth.
2. A sprocket wheel for bucket elevator that is easy to disassemble and replace as claimed in claim 1, characterized in that: A plurality of supporting protrusions are evenly spaced along the circumferential direction on the outer circumference of the wheel hub disk surface, and the slot of the gear tooth seat of each gear tooth is embedded into the wheel hub disk surface from the outside to the inside from the portion between two adjacent supporting protrusions, and there is an overlapping section between the two ends of the gear tooth seat and the two adjacent supporting protrusions, and the two sides of the slot of the gear tooth seat respectively match the shapes of the two supporting protrusions at the portion where they overlap with the two supporting protrusions.
3. The sprocket wheel for bucket elevator that is easy to disassemble and replace as claimed in claim 1, characterized in that: The gear seat and the hub disk are respectively provided with through holes, and the fasteners include bolts and nuts. The bolts are passed through the through holes on the gear seat and the hub disk at the same time and then the nuts are tightened to achieve a locking connection between the two.
4. The sprocket wheel for bucket elevator that is easy to disassemble and replace as claimed in claim 1, characterized in that: The hub disk surface is provided with a plurality of stress release holes, which are located inside a plurality of gear teeth and are evenly distributed along the circumference of the hub disk surface.
5. The sprocket wheel for bucket elevator that is easy to disassemble and replace as claimed in claim 1, characterized in that: The structural dimensions of the plurality of gear teeth are the same.