Automatic adjusting device for conveying scraper chain

Abstract

The utility model discloses an automatic adjusting device for conveying a scraper chain, and belongs to the technical field of scrapers. The device comprises a scraper machine tail rack, a tail transmission shaft, bearing seats, a sliding groove, a lead screw, a directional baffle, a spring and a follower plate, kidney-shaped grooves are formed in the left side wall and the right side wall of the scraper machine tail rack, the tail transmission shaft is arranged in the kidney-shaped grooves in a sliding mode, and the two ends of the tail transmission shaft are connected with the bearing seats; the bearing seats are installed on the left side and the right side of the scraper machine tail rack in a sliding mode through sliding grooves, the directional baffle is installed on the tail portion of the scraper machine tail rack, one end of the lead screw is connected with the bearing seats, the other end of the lead screw penetrates through the directional baffle and then is connected with the follow-up plate, and the spring is arranged between the directional baffle and the follow-up plate. The situation that the tightness of a chain of the scraper conveyor is inconsistent according to the quantity of conveyed materials and unstable materials when an original conveying scraper conveyor normally operates is avoided, the tightness of the chain is automatically adjusted according to the weight of the materials during operation, abrasion of a cone and the chain is avoided, and normal and stable operation of equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to an automatic adjustment device for conveying scraper chains and belongs to the technical field of scraper machines. Background Art

[0002] Conveyor scrapers are widely used in the grain and food industries. When the conveyor belt conveys materials, the scraper moves along the direction of the conveyor belt. During the movement, the scraper is close to the conveyor belt and applies a certain amount of pressure to ensure that the materials adhering to the conveyor belt are scraped off, and then collected or discharged through the cleaning device. When in use, the tightness of the conveyor scraper chain is adjusted and fixed according to the process requirements. When conveying materials, the chain will be tight and loose depending on the amount of material, causing the chain machine scraper gear and chain to wear and reduce the service life. At the same time, the loose chain may cause the chain to disengage from the drive wheel, so that the scraper cannot operate normally, resulting in a decrease in production capacity. Even loose chains may cause the chain to fall off, posing a safety hazard and a risk of injury to equipment operators, as well as damage to the sprocket, transmission device and other key components of the scraper, increasing the maintenance cost of the equipment, affecting the normal operation of the hopper, and causing the material to be unable to be discharged on time, thereby affecting the production process.

[0003] Therefore, it is urgent to propose a novel automatic adjustment device for conveying scraper chains to solve the above technical problems. Utility Model Content

[0004] The purpose of developing this utility model is to solve the problem that the original conveying scraper machine will have inconsistent tightness of the scraper machine chain due to the amount of conveyed materials and the instability of materials during normal operation, causing the scraper machine chain to wear heavily and reduce its service life. At the same time, the instantaneous increase of materials will increase the tightness of the scraper machine chain and cause the motor current to be unstable, which will also cause fluctuations in subsequent equipment. A brief overview of the utility model is given below to provide a basic understanding of certain aspects of the utility model. It should be understood that this overview is not an exhaustive overview of the utility model. It is not intended to determine the key or important parts of the utility model, nor is it intended to limit the scope of the utility model.

[0005] The technical solution of this utility model:

[0006] An automatic adjustment device for conveying scraper chains comprises a scraper tail frame, a tail transmission shaft, a bearing seat, a slide groove, a lead screw, a directional baffle, a spring and a follower plate. Waist-shaped grooves are provided on the left and right side walls of the scraper tail frame, the tail transmission shaft is slidably arranged in the waist-shaped grooves, and both ends of the tail transmission shaft are connected to bearing seats, the bearing seats are slidably installed on the left and right sides of the scraper tail frame through the slide groove, and a directional baffle is fixedly installed at the tail of the scraper tail frame, one end of the lead screw is connected to the bearing seat, and the other end of the lead screw is connected to the follower plate after passing through the directional baffle, and a spring is arranged between the directional baffle and the follower plate.

[0007] Preferably, the end of the lead screw passes through the follower plate and then engages with the adjusting nut thread.

[0008] Preferably, an inspection door is provided on the top of the rear frame of the scraper conveyor.

[0009] Preferably, the lead screw is connected to the bearing seat via a distance adjustment mechanism.

[0010] Preferably, the distance adjustment mechanism comprises an adjustment seat and a rotating nut, one end of the adjustment seat is fixedly connected to the bearing seat, and the other end of the adjustment seat is rotatably mounted with a rotating nut, and the rotating nut is threadedly matched with the end of the lead screw.

[0011] Preferably: a visual window is provided on the adjustment seat.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model adds gravity springs at both ends of the screw for adjusting the chain at the tail of the scraper, adjusts the tightness of the screw when it is unloaded, and automatically adjusts the tightness of the chain according to the weight of the material during operation, avoiding the wear of the tooth wheel and the chain, ensuring the normal and stable operation of the equipment, while protecting the wear of the chain and the tooth wheel, extending the service life, and reducing the frequency of replacement and maintenance;

[0014] 2. The utility model can ensure that the scraper maintains proper tension during operation, ensuring that the scraper is in close contact with the conveyor belt without any gap, which is conducive to effectively cleaning the materials on the conveyor belt;

[0015] 3. The distance adjustment mechanism of the utility model can be adjusted according to the different materials being transported to ensure that the running tension of the conveyor belt can be maintained, ensure the normal operation of the conveyor belt, reduce the frequency of shutdown maintenance, and improve the efficiency of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an automatic adjustment device for conveying scraper chains;

[0017] Figure 2 It is a side view of an automatic adjustment device for conveying scraper chains;

[0018] Figure 3 It is a three-dimensional diagram of the distance adjustment mechanism of the utility model;

[0019] Figure 4 This is a matching installation diagram of the distance adjustment mechanism of the utility model;

[0020] In the figure, 1-scraper tail frame, 2-tail transmission shaft, 3-bearing seat, 4-slide groove, 5-screw, 6-directional baffle, 7-spring, 8-follow-up plate, 9-adjusting nut, 10-waist-shaped groove, 11-adjusting seat, 12-rotating nut, 13-visible window, and 14-inspection door. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0022] The connection mentioned in the present invention is divided into fixed connection and detachable connection. The fixed connection is a non-detachable connection, including but not limited to conventional fixed connection methods such as folding connection, rivet connection, bonding connection and welding connection. The detachable connection includes but is not limited to conventional detachable methods such as threaded connection, snap connection, pin connection and hinge connection. When the specific connection method is not clearly defined, it is assumed that at least one connection method can always be found in the existing connection methods to achieve the function. Those skilled in the art can choose according to their needs. For example: choose welding connection for fixed connection and hinge connection for detachable connection.

[0023] Specific implementation method 1: Combination Figure 1-Figure 4The present embodiment is described. The present embodiment is an automatic adjustment device for conveying a scraper chain, comprising a scraper tail frame 1, a tail transmission shaft 2, a bearing seat 3, a slide groove 4, a lead screw 5, a directional baffle 6, a spring 7 and a follower plate 8. Waist-shaped grooves 10 are provided on the left and right side walls of the scraper tail frame 1. The tail transmission shaft 2 is slidably arranged in the waist-shaped grooves 10 to provide a tension limit for the tail transmission shaft 2. The two ends of the tail transmission shaft 2 are connected to the bearing seats 3, that is, the two ends of the tail transmission shaft 2 cooperate with the rotating bearings in the bearing seats 3. The bearing seats 3 are slidably installed on the scraper tail through the slide groove 4. Two slide grooves 4 are installed on the left and right sides of the frame 1, that is, the left and right sides of the scraper tail frame 1. A directional baffle 6 is fixedly welded and installed on the outer side of the tail of the scraper tail frame 1. One end of the screw 5 is connected with the bearing seat 3, and the other end of the screw 5 is connected with the follower plate 8 after passing through the directional baffle 6, that is, the end of the screw 5 passes through the follower plate 8 and is threadedly matched with the adjusting nut 9. A spring 7 is arranged between the directional baffle 6 and the follower plate 8, which can automatically adjust the tightness of the chain according to the weight of the material. The directional baffle 6 and the screw 5 establish a sliding fit through the opened sliding hole to play a role in limiting.

[0024] The tail transmission shaft 2 is provided with a sprocket for cooperating with the driving shaft to drive the scraper.

[0025] An inspection door 14 is provided on the top of the scraper tail frame 1 for observing and inspecting the matching status of the tail transmission shaft 2 and other components, or whether there is any jamming.

[0026] The lead screw 5 is connected to the bearing seat 3 through a pitch adjustment mechanism. The pitch adjustment mechanism includes an adjustment seat 11 and a rotating nut 12. One end of the adjustment seat 11 is fixedly connected to the bearing seat 3, and the other end of the adjustment seat 11 is rotatably mounted with the rotating nut 12. The rotating nut 12 is threadedly matched with the end of the lead screw 5, and can be adjusted according to different materials being transported to ensure that the running tension of the conveyor belt can be maintained and the normal operation of the conveyor belt can be ensured.

[0027] The adjustment seat 11 is provided with a visual window 13, and the visual window 13 can also be provided with a scale for observing the length of the lead screw 5 extending into one side of the adjustment seat 11, so as to adjust and align with the tension of the compression springs 7 on the left and right sides. Compared with directly adjusting the adjustment nut 9, targeted and precise fine-tuning is possible, the structure is more flexible, and the practicality is stronger.

[0028] The automatic adjustment device for conveying scraper chains in this embodiment can extend the service life of chains and gears by 2 years, while reducing the labor intensity of personnel and production costs. According to a 5,000-ton / day processing production line, the annual cost can be saved by more than 500,000 yuan.

[0029] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be arranged and combined, and those skilled in the art can exhaust all possibilities based on the mathematical knowledge of arrangement and combination. Therefore, the present utility model will no longer describe the technical solutions after arrangement and combination one by one, but it should be understood that the technical solutions after arrangement and combination have been disclosed by the present utility model.

[0030] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic adjustment device for conveying scraper chains, characterized in that: The scraper machine comprises a tail frame (1), a tail transmission shaft (2), a bearing seat (3), a slide groove (4), a lead screw (5), a directional baffle (6), a spring (7) and a follower plate (8). The left and right side walls of the scraper machine tail frame (1) are provided with waist-shaped grooves (10). The tail transmission shaft (2) is slidably arranged in the waist-shaped grooves (10). Both ends of the tail transmission shaft (2) are connected with bearing seats (3). The bearing seats (3) are slidably installed on the left and right sides of the scraper machine tail frame (1) through the slide groove (4). The tail of the scraper machine tail frame (1) is fixedly installed with a directional baffle (6). One end of the lead screw (5) is connected to the bearing seat (3). The other end of the lead screw (5) passes through the directional baffle (6) and is connected to the follower plate (8). A spring (7) is arranged between the directional baffle (6) and the follower plate (8).

2. The automatic adjustment device for conveying scraper chain according to claim 1 is characterized in that: The end of the lead screw (5) passes through the follower plate (8) and is threadably matched with the adjusting nut (9).

3. The automatic adjustment device for conveying scraper chain according to claim 2 is characterized in that: An inspection door (14) is provided on the top of the scraper tail frame (1).

4. The automatic adjustment device for conveying scraper chain according to claim 3 is characterized in that: The lead screw (5) is connected to the bearing seat (3) via a distance adjustment mechanism.

5. The automatic adjustment device for conveying scraper chain according to claim 4 is characterized in that: The distance adjustment mechanism comprises an adjustment seat (11) and a rotating nut (12); one end of the adjustment seat (11) is fixedly connected to the bearing seat (3); the other end of the adjustment seat (11) is rotatably mounted with the rotating nut (12); the rotating nut (12) is threadably matched with the end of the lead screw (5).

6. The automatic adjustment device for conveying scraper chain according to claim 5, characterized in that: The adjustment seat (11) is provided with a visual window (13).

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