Lower tensioning mechanism of bucket elevator

Abstract

The utility model relates to the technical field of bucket elevator tensioning, and discloses a bucket elevator lower portion tensioning mechanism which comprises a bucket elevator body, a feeding port is formed in the upper position of the rear end of the bucket elevator body, installation blocks are installed in the middles of the two sides of the bucket elevator body respectively, sliding grooves are formed in the front face and the rear face of each installation block, and the sliding grooves are communicated with the feeding port. A tensioning sliding block is slidably installed in the sliding groove, a connecting seat is fixedly installed on the outer side face of the tensioning sliding block, and a bearing seat used for fixing a driven shaft is arranged at the lower end of the connecting seat. Through a tensioning spring, a balancing weight, a bearing seat, an electric hydraulic telescopic rod and a material storage bottom shell, rising of the bearing seat can be further limited, the sliding stability of the bearing seat can be improved, meanwhile, the moving distance of the bearing seat can be observed, the height of the material storage bottom shell can be conveniently adjusted, and therefore the influence on material conveying after adjustment is reduced; and the storage bottom shell is convenient to clean after use.

Description

Technical Field

[0001] This utility model relates to the field of bucket elevator tensioning technology, specifically a lower tensioning mechanism for a bucket elevator. Background Technology

[0002] Bucket elevators are the most widely used type of vertical lifting equipment. They are favored for their good overall sealing and low environmental pollution. They are mainly suitable for the continuous vertical lifting of powdery, granular, and small lump materials. Since the traction device chain or belt of the bucket elevator will gradually be stretched during use, a certain amount of tension stroke needs to be reserved at the bottom to facilitate adjustment according to the changes in the chain or belt.

[0003] Chinese patent provides a lower tensioning mechanism for a bucket elevator, publication number CN213894065U, which includes a bucket elevator housing, a bearing seat on the outer wall of the bucket elevator housing, the bearing seat slidingly engaging with the bucket elevator housing, and a dustproof shell on the bucket elevator housing, with the bearing seat located inside the dustproof shell.

[0004] The above-mentioned device, through the limiting effect of the upper limit block, ensures that when the bearing seat vibrates, it can not move downward due to the obstruction of the lower limit block on the dustproof housing. At the same time, when the bearing seat moves upward, the lifting force of the spring on the lower limit block enables the bearing seat to quickly reset and ensures the long-term positional stability of the bearing seat, preventing the chain from becoming loose between the upper and lower bearing seats.

[0005] However, its moving structure is relatively simple, relying solely on the spring force to push the moving bearing seat back to its original position, resulting in poor stability. It is also difficult to observe the tension distance, and during material transmission, material may accumulate at the bottom. If not cleaned in time, it will mix with newly entering material, affecting the transmission quality. Utility Model Content

[0006] The purpose of this utility model is to provide a lower tensioning mechanism for a bucket elevator, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A lower tensioning mechanism for a bucket elevator includes a bucket elevator body. A feed inlet is provided at the upper rear end of the bucket elevator body. Mounting blocks are respectively installed at the center positions on both sides of the bucket elevator body. Sliding grooves are provided on the front and rear opposite surfaces of the mounting blocks, and tensioning sliding blocks are slidably installed in the sliding grooves. A connecting seat is fixedly installed on the outer side of the tensioning sliding block, and a bearing seat for fixing the driven shaft is provided at the lower end of the connecting seat.

[0009] A tension adjusting rod is fixedly installed at the top of the connecting seat. Several counterweights are installed at the top of the tension adjusting rod through a placement box. A storage bottom shell is slidably installed at the lower part of the inside of the bucket elevator body. Electric hydraulic telescopic rods are installed at both the front and rear ends of the inside of the bucket elevator body. The push rods of the electric hydraulic telescopic rods are connected to the storage bottom shell through connecting bolts and mounting plates. A cleaning port is opened at the front end of the storage bottom shell. A blocking block is installed in the cleaning port through fixing bolts. A locking block is provided at the top of the blocking block. A locking groove is opened at the front end of the cleaning port. The blocking block is locked in the locking groove of the cleaning port through the locking block.

[0010] Preferably, limit blocks are fixedly installed on the upper positions of both sides of the bucket elevator body, the end of the tension adjusting rod away from the connecting seat passes through the limit block, and the tension adjusting rod and the limit block are slidably connected, and a stop block is slidably installed on the lower position of the outer ring of the tension adjusting rod.

[0011] Preferably, a tension spring is provided around the outer ring of the tension adjusting rod, and the upper and lower ends of the tension spring abut against the upper and lower opposing surfaces of the abutment block and the limiting block, respectively. The outer ring of the tension adjusting rod is provided with an external thread, and the tension adjusting rod is threaded to a lower limiting nut through the external thread. Under the action of several counterweights, the bottom surface of the lower limiting nut is in contact with the top surface of the limiting block.

[0012] Preferably, a reinforcing rod is slidably installed at the rear position of the upper and lower ends of the connecting seat, and a sliding rod is slidably installed at the front position of the upper and lower ends of the connecting seat. The outer ring of the sliding rod has an observation scale, and the bottom ends of the sliding rod and the reinforcing rod are fixedly connected to the bucket elevator body.

[0013] Preferably, the outer ring of the reinforcing rod is provided with external threads, and the reinforcing rod is connected to a limiting nut that is compatible with the connecting seat through the external threads, and the limiting nut is located below the connecting seat.

[0014] Preferably, a blocking plate is detachably installed at the front end of the bucket elevator body through a maintenance port, and a guide block is provided on the inner bottom wall of the bucket elevator body to adapt to the blocking plate.

[0015] Preferably, the storage bottom shell and the block are combined in an arc shape, the outer wall of the storage bottom shell is in contact with the inner wall of the bucket elevator body, and the top surface of the storage bottom shell does not exceed the feed inlet.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model, by setting a tension spring and a counterweight in conjunction with the bearing seat, allows the bearing seat to be tensioned during use by the weight of the counterweight and the elastic thrust of the tension spring, thereby further limiting the rise of the bearing seat. In addition, the setting of the reinforcing rod and sliding rod can improve the sliding stability of the bearing seat, and at the same time, the movement distance of the bearing seat can be observed, which facilitates the improvement of the functionality of use.

[0018] By setting up an electric hydraulic telescopic rod and a storage bottom shell to work together, the height of the storage bottom shell can be adjusted by extending and retracting the electric hydraulic telescopic rod when adjusting the tension of the conveyor belt. This reduces the impact of adjustment on material conveying. Furthermore, by removing the block and plate, the material inside the storage bottom shell can be cleaned out, making it easy to clean the storage bottom shell after use and avoiding any impact on subsequent use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the lower tensioning mechanism of a bucket elevator in an embodiment of this utility model.

[0020] Figure 2 As an embodiment of this utility model Figure 1 The main view of the structure.

[0021] Figure 3 This is a cross-sectional view of the internal structure of the bucket elevator body in an embodiment of this utility model.

[0022] Figure 4 This is a schematic diagram of the connection between the blocking block and the bottom shell of the storage container in an embodiment of this utility model.

[0023] Figure 5 This is a schematic diagram of the connection structure between the connecting seat and the tension adjusting rod, the reinforcing rod, and the sliding rod in an embodiment of this utility model.

[0024] Figure 6 This is a split view of the storage bottom shell and the blocking block in an embodiment of this utility model.

[0025] In the diagram: 1. Bucket elevator body; 2. Feed inlet; 3. Tensioning sliding block; 4. Bearing seat; 5. Connecting seat; 6. Tension adjusting rod; 7. Counterweight; 8. Abutment block; 9. Lower limit nut; 10. Tensioning spring; 11. Reinforcing rod; 12. Sliding rod; 13. Storage bottom shell; 14. Mounting plate; 15. Electro-hydraulic telescopic rod; 16. Blocking block; 17. Fixing bolt; 18. Guide block; 19. Blocking plate; 20. Mounting block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0027] Combination Figures 1-6 A lower tensioning mechanism for a bucket elevator includes a bucket elevator body 1. A feed inlet 2 is located at the upper rear end of the bucket elevator body 1. Mounting blocks 20 are respectively installed at the center positions on both sides of the bucket elevator body 1. Sliding grooves are provided on the front and rear opposite surfaces of the mounting blocks 20, and tensioning sliding blocks 3 are slidably installed within the sliding grooves. A connecting seat 5 is fixedly installed on the outer side of the tensioning sliding block 3. A bearing seat 4 for fixing the driven shaft is provided at the lower end of the connecting seat 5. This bearing seat is a bearing seat with a dustproof sealing cover.

[0028] See Figure 2 and Figure 5 Furthermore, a tension adjusting rod 6 is fixedly installed at the top of the connecting seat 5. Several counterweights 7 are installed at the top of the tension adjusting rod 6 through a placement box. Limiting blocks are fixedly installed on the upper sides of both sides of the bucket elevator body 1. The end of the tension adjusting rod 6 away from the connecting seat 5 passes through the limiting block, and the tension adjusting rod 6 and the limiting block are slidably connected. A stop block 8 is slidably installed at the lower position of the outer ring of the tension adjusting rod 6. A tension spring 10 is arranged around the outer ring of the tension adjusting rod 6. The upper and lower ends of the tension spring 10 abut against the upper and lower opposing surfaces of the stop block 8 and the limiting block, respectively. The outer ring of the tension adjusting rod 6 is provided with external threads. The tension adjusting rod 6 is connected to a lower limit nut 9 via an external thread. Under the action of several counterweights, the bottom surface of the lower limit nut 9 is in contact with the top surface of the limit block. A reinforcing rod 11 is slidably installed at the rear position of the upper and lower ends of the connecting seat 5. A sliding rod 12 is slidably installed at the front position of the upper and lower ends of the connecting seat 5. The outer ring of the sliding rod 12 has an observation scale. The bottom ends of the sliding rod 12 and the reinforcing rod 11 are fixedly connected to the bucket elevator body 1. The outer ring of the reinforcing rod 11 has an external thread, and the reinforcing rod 11 is connected to a limiting nut that is compatible with the connecting seat 5 via an external thread. The limiting nut is located below the connecting seat 5.

[0029] Specifically, when the bearing seat 4 vibrates with the material being transported, the elastic thrust of the tension spring 10 and the weight of the counterweight 7 can limit the upward movement of the bearing seat 4. At the same time, the bearing seat 4 is slidably installed in the side groove of the bucket elevator body 1. The groove can obstruct the downward movement of the tension sliding block 3, thus preventing the bearing seat 4 from moving downward. When adjusting the bearing seat 4, the reinforcing rod 11 and the sliding rod 12 can improve the overall sliding stability of the bearing seat 4. When the downward distance of the bearing seat 4 does not reach the limit distance of the groove, the downward distance of the bearing seat 4 can also be limited by the limiting nut connected to the outer ring of the reinforcing rod 11, so as to ensure the transmission stability of the bearing seat 4 under different conditions, thereby reducing the impact on the stability of the chain transmission. The outer ring of the sliding rod 12 is provided with an observation scale, which can be used to observe how far the bearing seat 4 has fallen or risen. The reading is made according to the downward scale for personnel to observe. Example 2

[0030] See Figure 3 , Figure 4 and Figure 6 Furthermore, based on Embodiment 1, a tension adjusting rod 6 is fixedly installed at the top of the connecting seat 5. Several counterweights 7 are installed at the top of the tension adjusting rod 6 through a placement box. A storage bottom shell 13 is slidably installed inside the lower part of the bucket elevator body 1. Electric hydraulic telescopic rods 15 are installed on both the front and rear sides of the bucket elevator body 1. The push rods of the electric hydraulic telescopic rods 15 are connected to the storage bottom shell 13 through connecting bolts and mounting plates 14. A cleaning port is opened at the front end of the storage bottom shell 13, and the cleaning port is open to... A blocking block 16 is installed via a fixing bolt 17. The top of the blocking block 16 is provided with a locking block, and a locking groove is provided at the front end of the cleaning port. The blocking block 16 is locked in the locking groove of the cleaning port by the locking block. A blocking plate 19 is detachably installed at the front end of the bucket elevator body 1 via a maintenance port. A guide block 18 is provided on the inner bottom wall of the bucket elevator body 1 to adapt to the blocking plate 19. The storage bottom shell 13 and the blocking block 16 are combined in an arc shape. The outer wall of the storage bottom shell 13 fits against the inner wall of the bucket elevator body 1, and the top surface of the storage bottom shell 13 does not exceed the feed inlet 2.

[0031] Specifically, when the position of bearing seat 4 is adjusted, the electric hydraulic telescopic rod 15 can be activated as needed. Since the storage bottom shell 13 is slidably installed at the lower part of the bucket elevator body 1, the height of the storage bottom shell 13 can be adjusted by extending and retracting the push rod of the electric hydraulic telescopic rod 15. This allows the material to be lifted according to the chain tension position, thereby improving the conveying effect and reducing the probability of material residue. After the conveying is completed, the push rod of the electric hydraulic telescopic rod 15 can be controlled to retract to the limit distance to move the storage bottom shell 13 to a suitable cleaning position. Then, the block plate 19 can be pulled up and the fixing bolt 17 can be unscrewed. After that, the block block 16 can be removed. After removal, the residual material inside the storage bottom shell 13 can be cleaned with the help of tools. During the cleaning process, since the lower part of the storage bottom shell 13 is arc-shaped, it can avoid generating many cleaning dead corners, thereby improving the cleaning effect.

[0032] In actual operation, when the bearing seat 4 vibrates with the material transmission, the elastic thrust of the tension spring 10 and the weight of the counterweight 7 can limit the rise of the bearing seat 4. At the same time, the bearing seat 4 is slidably installed in the side groove of the bucket elevator body 1. The groove can hinder the descent of the tension sliding block 3, so that the bearing seat 4 cannot move downward. When the bearing seat 4 is adjusted, the reinforcing rod 11 and the sliding rod 12 can improve the overall sliding stability of the bearing seat 4. At the same time, when the descent distance of the bearing seat 4 does not reach the limit distance of the groove;

[0033] The descent distance of the bearing seat 4 can also be limited by the limiting nut connected to the outer ring thread of the reinforcing rod 11, so as to ensure the transmission stability of the bearing seat 4 under different conditions, thereby reducing the impact on the stability of chain transmission. The outer ring of the slide rod 12 is provided with an observation scale, which can be used to observe how far the bearing seat 4 descends or rises. That is, the reading is made according to the descent scale so that personnel can observe it.

[0034] When the position of bearing seat 4 is adjusted, the electric hydraulic telescopic rod 15 can be activated as needed. Since the storage bottom shell 13 is slidably installed on the lower part of the bucket elevator body 1 through the mounting rod 14, the height of the storage bottom shell 13 can be adjusted by the extension and retraction of the electric hydraulic telescopic rod 15 push rod, so as to lift the material according to the chain tension position, thereby improving the conveying effect and reducing the probability of material residue.

[0035] After the conveying is completed, the electric hydraulic telescopic rod 15 can be controlled to retract to the limit distance to move the storage bottom shell 13 to a suitable cleaning position. Then the block plate 19 can be pulled up and the fixing bolt 17 can be unscrewed to remove the block 16.

[0036] After disassembly, tools can be used to clean the remaining material inside the storage bottom shell 13. During the cleaning process, because the lower part of the storage bottom shell 13 is arc-shaped, it can avoid creating many cleaning dead corners, thereby improving the cleaning effect. After cleaning, the block 16 can be reinstalled in its original position using the fixing bolts 17, and it is ensured that the locking block at the block 16 is engaged in the cleaning port to avoid affecting subsequent use.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lower tensioning mechanism for a bucket elevator, comprising a bucket elevator body (1), wherein a feed inlet (2) is provided at the upper rear end of the bucket elevator body (1), and mounting blocks (20) are respectively installed at the center positions on both sides of the bucket elevator body (1). A sliding groove is provided on the front and rear opposite surfaces of the mounting block (20), and a tensioning sliding block (3) is slidably installed in the sliding groove. A connecting seat (5) is fixedly installed on the outer side of the tensioning sliding block (3), and a bearing seat (4) for fixing the driven shaft is provided at the lower end of the connecting seat (5). Its features are: The top of the connecting seat (5) is fixedly installed with a tension adjusting rod (6). The top of the tension adjusting rod (6) is installed with several counterweights (7) through a placement box. The storage bottom shell (13) is slidably installed in the lower part of the bucket elevator body (1). Electric hydraulic telescopic rods (15) are installed in the front and rear sides of the bucket elevator body (1). The push rod of the electric hydraulic telescopic rod (15) is connected to the storage bottom shell (13) through connecting bolts and mounting plate (14). The front end of the storage bottom shell (13) is provided with a cleaning port. A block (16) is installed in the cleaning port through fixing bolts (17). The top of the block (16) is provided with a locking block. The front end of the cleaning port is provided with a locking groove. The block (16) is locked in the locking groove of the cleaning port through the locking block.

2. The lower tensioning mechanism of a bucket elevator according to claim 1, characterized in that: Limiting blocks are fixedly installed on the upper sides of the bucket elevator body (1). The end of the tension adjusting rod (6) away from the connecting seat (5) passes through the limiting block, and the tension adjusting rod (6) and the limiting block are slidably connected. A stop block (8) is slidably installed on the lower side of the outer ring of the tension adjusting rod (6).

3. The lower tensioning mechanism of a bucket elevator according to claim 2, characterized in that: A tension spring (10) is provided around the outer ring of the tension adjusting rod (6). The upper and lower ends of the tension spring (10) abut against the upper and lower opposing surfaces of the abutment block (8) and the limiting block, respectively. The outer ring of the tension adjusting rod (6) is provided with an external thread, and the tension adjusting rod (6) is connected to a lower limiting nut (9) through the external thread. Under the action of several counterweights, the bottom surface of the lower limiting nut (9) is in contact with the top surface of the limiting block.

4. The lower tensioning mechanism of a bucket elevator according to claim 2, characterized in that: A reinforcing rod (11) is slidably installed at the rear position of the upper and lower ends of the connecting seat (5), and a sliding rod (12) is slidably installed at the front position of the upper and lower ends of the connecting seat (5). The outer ring of the sliding rod (12) is provided with observation scale. The bottom ends of the sliding rod (12) and the reinforcing rod (11) are fixedly connected to the bucket elevator body (1).

5. The lower tensioning mechanism of a bucket elevator according to claim 4, characterized in that: The outer ring of the reinforcing rod (11) is provided with an external thread, and the reinforcing rod (11) is connected to a limiting nut that is compatible with the connecting seat (5) through the external thread, and the limiting nut is located below the connecting seat (5).

6. The lower tensioning mechanism of a bucket elevator according to claim 1, characterized in that: The front end of the bucket elevator body (1) is detachably installed with a blocking plate (19) through a maintenance port, and the inner bottom wall of the bucket elevator body (1) is provided with a guide block (18) that is compatible with the blocking plate (19).

7. The lower tensioning mechanism of a bucket elevator according to claim 1, characterized in that: The storage bottom shell (13) and the block (16) are arranged in an arc shape. The outer wall of the storage bottom shell (13) is in contact with the inner wall of the bucket elevator body (1), and the top surface of the storage bottom shell (13) does not exceed the feed inlet (2).

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