Bottom accumulated material scraper device of bucket elevator

Abstract

The utility model discloses a scraper device for materials accumulated at the bottom of a bucket elevator, and relates to the technical field of material conveying. The device comprises a bottom shell, a machine shell, a collecting shell, a rotating shaft and a metal elastic plate, the machine shell is fixed at the upper end of the bottom shell, the collecting shell is fixed outside the bottom shell, and a collecting box is movably inserted in the collecting shell; two sets of symmetrically-distributed arc grooves are formed in the circumferential side face of the bottom shell, two symmetrically-distributed adjusting blocks are arranged on the outer side of the bottom shell, two symmetrically-distributed inclined face scraping plates are arranged on the inner curved face of the bottom shell, an inclined metal elastic plate is fixed to the inner end wall of the bottom shell, and a rubber scraping plate is fixed to the inclined upper end of the metal elastic plate. By arranging the metal elastic plate, the rubber scraping plate, the bottom shell, the collecting shell, the collecting box, the inclined surface scraping plate and the adjusting block, the problems that materials adhered to the outer side cannot be scraped and cleaned when the hopper runs, accumulated materials in the bottom shell of the bucket elevator cannot be conveniently discharged, the applicability is not high, and the shell of the bucket elevator needs to be excessively modified are solved.

Description

Technical Field

[0001] This utility model belongs to the field of material conveying technology, and in particular relates to a scraper device for bottom material accumulation of a bucket elevator. Background Technology

[0002] Bucket elevators are commonly used vertical lifting equipment, suitable for vertically lifting dry, loose, powdery materials or other materials. They are typically used for lifting materials from a low point to a high point. Material is fed into the buckets via a vibrating table, and the machine automatically and continuously transports it upwards. The buckets scoop material from the lower storage, lift it to the top via a conveyor belt or chain, pass over the top pulley, and then tilt downwards, emptying the material into a receiving trough. Belt-driven bucket elevators typically use rubber belts mounted on the lower or upper drive rollers and the upper and lower idler rollers. Chain-driven bucket elevators generally have two parallel drive chains, with a pair of drive sprockets at the top or bottom and a pair of idler sprockets at the bottom or top. Bucket elevators are usually enclosed in a casing to prevent dust from escaping. However, in practical use, the following drawbacks still exist:

[0003] When lifting materials (especially wet, sticky, and fine powdery materials), some materials will adhere to the outer surface of the hopper and the tail wheel during the empty return trip. When the hopper moves downward around the tail wheel, these adhered materials will be thrown off by gravity or centrifugal force and accumulate in the bottom shell (base) of the elevator, and may also accumulate in other parts, affecting operation. The accumulated material may block the bottom space, hinder the operation of the hopper, and even cause the hopper to collide. Therefore, it is necessary to use scrapers and other structures to scrape the material off the outside of the hopper.

[0004] Secondly, the scraped material or material that has accumulated in the bottom shell needs to be cleaned regularly. If it is not cleaned, it will easily affect the operation of the bucket. For example, the utility model patent with authorization announcement number CN 215363486 U can scrape the accumulated material in the bottom shell, but when the scraper returns, it may carry the un-discharged material into the placement groove, and the chute is connected to the outside, which can easily leak dust. Another example is the utility model patent with authorization announcement number CN 212049329 U, which requires a square bottom shell to be used. Another example is the utility model patent with authorization announcement number CN 217417059 U, which uses a disassembly method to clean the accumulated material, which is very cumbersome. Another example is the utility model patent with authorization announcement number CN 214030451 U, which uses a circumferential sweeping method to clean the accumulated material, but this requires the bottom of the machine shell to be conical, which is not compatible with common bucket elevators and requires excessive modification of the bucket elevator. Utility Model Content

[0005] The purpose of this utility model is to provide a scraper device for the bottom accumulation of material in a bucket elevator. By setting a metal spring plate, a rubber scraper, a bottom shell, a collection shell, a collection box, an inclined scraper, and an adjusting block, it solves the problems of material adhering to the outside of the bucket during operation being unable to be scraped off and cleaned, material accumulating in the bottom shell of the bucket elevator being unable to be easily discharged, and the low applicability requiring excessive modification of the bucket elevator shell.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a bottom material accumulation scraper device for a bucket elevator, including a bottom shell, a machine shell, a collection shell, a rotating shaft and a metal spring plate. The machine shell is fixed at the upper end of the bottom shell, and the rotating shaft is rotatably connected inside the bottom shell. A conveyor belt is sleeved on the outer periphery of the rotating shaft. Equally spaced lifting buckets are fixed on the outer side of the conveyor belt. The collection shell is fixed on the outside of the bottom shell, and a collection box is movably inserted into the collection shell.

[0008] Two sets of symmetrically distributed arc grooves are provided on the peripheral side of the bottom shell. Two symmetrically distributed adjustment blocks are provided on the outer side of the bottom shell. Two symmetrically distributed inclined scrapers are provided on the inner curved surface of the bottom shell. A through discharge groove is provided at the lowest point of the bottom shell. An inclined metal spring plate is fixed on the inner end wall of the bottom shell, and a rubber scraper is fixed on the upper inclined end of the metal spring plate.

[0009] Furthermore, bearings are fixed to the outer surfaces of both ends of the bottom shell, and both ends of the rotating shaft extend out of the bottom shell and are fixed in the inner rings of the bearings.

[0010] Furthermore, a frame one is fixed to the bottom outer edge of the housing, and a frame two is fixed to the top outer edge of the bottom shell. The frame one and the frame two are locked together by bolts and nuts, and a feed hopper is fixed through the side of the housing.

[0011] Furthermore, the arc groove and discharge groove of the bottom shell extend into the inner cavity of the collection shell and are located above the collection box. Symmetrically distributed limiting strips are fixed in the inner cavity of the collection shell above the collection box, and a handle is fixed on the side of the collection box away from the collection shell.

[0012] Furthermore, each set of arc grooves is provided with an adjusting block and a slope scraper on its inner and outer sides, and two connecting blocks are fixed on the side of the adjusting block near the slope scraper, and the two connecting blocks are fixedly connected to the slope scraper after passing through the arc groove.

[0013] Furthermore, the rubber scraper has a triangular cross-section, and a connector is fixed to the bottom surface of the rubber scraper. A connector groove is provided in the upper inclined surface of the metal spring plate. The connector is inserted into the connector groove and screwed to the metal spring plate for fixation.

[0014] Furthermore, the outermost contact metal spring plate is located at the upper edge of the outermost part of the lifting hopper during operation.

[0015] This utility model has the following beneficial effects:

[0016] This invention solves the problem of materials adhering to the outside of the bucket during operation being unable to be scraped off and cleaned by setting up a metal spring plate, a rubber scraper, and a bottom shell. The conveyor belt is sleeved on the outside of the two rotating shafts (which is a conventional structure of bucket elevators), and the conveyor belt will carry the bucket. During operation, if some sticky materials adhere to the bucket, they will be scraped off by the rubber scraper. The rubber scraper ensures that it can effectively scrape off the materials without causing excessive wear on the bucket and the scraper. The elasticity of the rubber can also scrape off a large area of ​​material on the outer edge of the bucket.

[0017] This invention solves the problem of material accumulation in the bottom shell of a bucket elevator being difficult to discharge, having limited applicability, and requiring excessive modification of the bucket elevator shell by setting up a bottom shell, a collecting shell, a collecting box, an inclined scraper, and an adjusting block. Conventional bucket elevators have arched structures at the top and bottom, with most materials accumulating in the bottom shell. When periodic cleaning is required, most materials will automatically be discharged from the discharge chute into the collecting box inside the collecting shell under the arc design of the bottom shell and the action of gravity. Some sticky materials may adhere to the inner wall of the bottom shell. At this time, slightly opening the collecting box and reaching into the collecting shell to move the adjusting block along the arc groove outside the bottom shell will cause the inclined scraper to move along the inner curved surface of the bottom shell, scraping off the remaining material on the inner curved surface of the bottom shell and guiding it to the discharge chute to be discharged into the collecting box. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A perspective view of a scraper device for material accumulation at the bottom of a bucket elevator;

[0020] Figure 2 This is a structural diagram after the collection shell has been removed;

[0021] Figure 3 To collect the open view after shell cross-section;

[0022] Figure 4 This is a diagram showing the connection between the bottom shell and the rotating shaft;

[0023] Figure 5 This is a front view of the connection between the bottom shell and the pivot.

[0024] Figure 6 This is a sectional view of the bottom shell;

[0025] Figure 7This is a connection diagram of the adjusting block and the inclined scraper.

[0026] Figure 8 Diagram showing the connection between the metal spring plate and the rubber scraper;

[0027] Figure 9 This is a disassembly diagram of the metal spring plate and rubber scraper.

[0028] Figure label:

[0029] 1. Bottom shell; 101. Arc groove; 102. Adjusting block; 1021. Connecting block; 103. Frame one; 104. Discharge chute; 105. Inclined scraper; 2. Machine casing; 201. Feed hopper; 202. Frame two; 3. Collection shell; 301. Collection box; 3011. Handle; 302. Limiting strip; 4. Rotating shaft; 401. Conveyor belt; 402. Lifting hopper; 5. Metal spring plate; 501. Rubber scraper; 5011. Connector; 502. Screw; 503. Connecting groove. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] Please see Figure 1-9 As shown, this utility model is a bottom material accumulation scraper device for a bucket elevator, including a bottom shell 1, a machine shell 2, a collection shell 3, a rotating shaft 4 and a metal spring plate 5. The machine shell 2 is fixed at the upper end of the bottom shell 1. The rotating shaft 4 is rotatably connected inside the bottom shell 1. A conveyor belt 401 is sleeved on the outer periphery of the rotating shaft 4. Equally spaced lifting buckets 402 are fixed on the outer side of the conveyor belt 401. The collection shell 3 is fixed on the outside of the bottom shell 1. A collection box 301 is movably inserted into the collection shell 3.

[0032] The attached diagram shows the casing 2 in a half-sectioned state. The casing 2 and the bottom casing 1 are detachable. Another redirecting roller is set at the top and works with the rotating shaft 4 to install the conveyor belt 401. When the conveyor belt 401 is running, it drives the lifting bucket 402 to move and lift the material to a high place. During the entire lifting process, a small amount of material that falls and is scraped off will eventually enter the collection box 301 inside the collection shell 3 for collection.

[0033] Two sets of symmetrically distributed arc grooves 101 are provided on the peripheral side of the bottom shell 1. Two symmetrically distributed adjustment blocks 102 are provided on the outer side of the bottom shell 1. Two symmetrically distributed inclined scrapers 105 are provided on the inner curved surface of the bottom shell 1. A through discharge groove 104 is provided at the lowest point of the bottom shell 1. An inclined metal spring plate 5 is fixed on the inner end wall of the bottom shell 1, and a rubber scraper 501 is fixed on the inclined upper end of the metal spring plate 5.

[0034] The arc groove 101 allows for connection between the adjusting block 102 and the inclined scraper 105. The adjusting block 102 can be externally controlled to drive the movement of the inclined scraper 105. The adjusting block 102 controls the movement of the inclined scraper 105 on the inner curved surface of the bottom shell 1, scraping off the material adhering to the inner curved surface of the bottom shell 1 and discharging it from the discharge chute 104. When the lifting hopper 402 is working, if some sticky material adheres to it, it will be scraped off by the rubber scraper 501 when it passes through the rubber scraper 501. The rubber scraper ensures that it can effectively scrape off the material without causing excessive wear on the hopper and scraper. The elasticity of the rubber can also scrape off a large area of ​​material at the outer edge of the lifting hopper 402. In addition, the metal spring plate 5 has a certain degree of elasticity, so even if the material adhering is too large, it can be scraped off by the rubber scraper 501 and the metal spring plate 5.

[0035] Bearings are fixed to the outer surfaces of both ends of the bottom shell 1, and the two ends of the rotating shaft 4 extend out of the bottom shell 1 and are fixed in the inner ring of the bearings; the rotating shaft 4 is installed with the assistance of the bearings.

[0036] A frame 103 is fixed to the bottom outer edge of the casing 2, and a frame 202 is fixed to the top outer edge of the bottom casing 1. The frame 103 and the frame 202 are locked together by bolts and nuts. A feed hopper 201 is fixed through the side of the casing 2. The installation of the casing 2 and the bottom casing 1 is completed by the docking of the frame 103 and the frame 202 and the locking with bolts and nuts.

[0037] The arc groove 101 and discharge groove 104 of the bottom shell 1 extend into the inner cavity of the collection shell 3 and are located above the collection box 301. Symmetrically distributed limiting strips 302 are fixed in the inner cavity of the collection shell 3 above the collection box 301, and a handle 3011 is fixed on the side of the collection box 301 away from the collection shell 3.

[0038] The material leaking through the arc groove 101 and the discharge groove 104 eventually enters the collection box 301 and is contained in the collection shell 3, so that the dust generated during operation will not leak out. The collection box 301 can be picked up and put down by the handle 3011, and the position of the collection box 301 is limited by the limit strip 302.

[0039] Each set of arc grooves 101 is provided with an adjusting block 102 and an inclined scraper 105 on its inner and outer sides. Two connecting blocks 1021 are fixed on the side of the adjusting block 102 that is close to the inclined scraper 105. The two connecting blocks 1021 are fixedly connected to the inclined scraper 105 after passing through the arc groove 101.

[0040] The control adjustment block 102 outside the bottom shell 1 moves synchronously with the inclined scraper 105 through the connecting block 1021, so that the inclined scraper 105 moves along the angle of the arc groove 101 to scrape off the accumulated material on the inner curved surface of the bottom shell 1.

[0041] The rubber scraper 501 has a triangular cross section, and a connector 5011 is fixed on the bottom surface of the rubber scraper 501. A connector groove 503 is provided in the upper inclined surface of the metal spring plate 5. The connector 5011 is inserted into the connector groove 503 and screwed on the screw 502 to fix it to the metal spring plate 5.

[0042] When installing the rubber scraper 501, insert the connector 5011 on its bottom surface into the connector groove 503, and then screw in the screw 502 through the connector 5011 and the metal spring plate 5 to complete the fixing.

[0043] The outermost contact metal spring plate 5 is located at the upper edge when the lifting hopper 402 is running.

[0044] The specific working principle of this utility model is as follows: First, the casing 2 in the attached drawing is in a semi-sectioned state. Through the docking of frame one 103 and frame two 202, and then with bolts and nuts for locking and fixing, the casing 2 and the bottom casing 1 are detachably installed. Another redirecting roller is set at the top, and together with the rotating shaft 4, a conveyor belt 401 is installed. When the conveyor belt 401 runs, it drives the lifting hopper 402 to move. When the lifting hopper 402 is working, if some sticky material adheres to it, it will be scraped off by the rubber scraper 501 when it passes through. The rubber scraper ensures that it can effectively scrape off the material without causing damage. Excessive wear of the hopper and scraper causes scraped material and some loose material to accumulate inside the bottom shell 1. Most of the material will be automatically discharged from the discharge chute 104 into the collection box 301 inside the collection shell 3 under the arc design of the bottom shell 1 and gravity. Some sticky material may adhere to the inner wall of the bottom shell 1. Slightly open the collection box 301 and reach into the collection shell 3 to move the adjusting block 102 along the arc groove 101 outside the bottom shell 1. At this time, the inclined scraper 105 moves along the inner curved surface of the bottom shell 1, scraping off the remaining material on the inner curved surface of the bottom shell 1 and guiding it to the discharge chute 104 to be discharged into the collection box 301.

[0045] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A bucket elevator bottom material accumulation scraping device comprising a bottom shell (1), a machine shell (2), a collection shell (3), a rotating shaft (4) and a metal elastic plate (5), characterized in that: The bottom shell (1) is fixed with a machine shell (2) at the upper end, a rotating shaft (4) is rotatably connected in the bottom shell (1), a conveying belt (401) is sleeved on the outer periphery of the rotating shaft (4), a plurality of lifting hoppers (402) are fixed at equal intervals on the outer side of the conveying belt (401), a collecting shell (3) is fixed on the outer side of the bottom shell (1), and a collecting box (301) is movably inserted in the collecting shell (3). Two groups of arc grooves (101) are formed on the lateral side of the bottom shell (1) in a symmetrical manner, two symmetrical adjusting blocks (102) are arranged on the outer side of the bottom shell (1), two symmetrical inclined scraper plates (105) are arranged on the inner curved surface of the bottom shell (1), a through discharge groove (104) is formed at the lowest part of the bottom shell (1), and an inclined metal elastic plate (5) is fixed on the inner end wall of the bottom shell (1), and a rubber scraper plate (501) is fixed on the upper inclined end of the metal elastic plate (5).

2. A boot scraper assembly for a bucket elevator as defined in claim 1, wherein: Bearing is fixed on the outer end surface of the bottom shell (1), and the two ends of the rotating shaft (4) protrude out of the bottom shell (1) and are fixed in the inner ring of the bearing.

3. A boot scraper assembly for a bucket elevator as defined in claim 1, wherein: Frame one (103) is fixed on the bottom outer edge of the machine shell (2), frame two (202) is fixed on the top outer edge of the bottom shell (1), and frame one (103) and frame two (202) are fixed and locked by bolts and nuts, and the side of the machine shell (2) is fixed with an inlet hopper (201).

4. A boot unscraping device for an elevator as defined in claim 1, wherein: The arc grooves (101) and the discharge grooves (104) of the bottom shell (1) all extend into the inner cavity of the collecting shell (3) and are above the collecting box (301), the inner cavity of the collecting shell (3) above the collecting box (301) is fixed with symmetrical limiting strips (302), and the side of the collecting box (301) away from the collecting shell (3) is fixed with a handle (3011).

5. A boot unscraping device for an elevator as defined in claim 1, wherein: One adjusting block (102) and one inclined scraper plate (105) are arranged on the inner and outer sides of each group of arc grooves (101), two connecting blocks (1021) are fixed on the side of the adjusting block (102) close to the inclined scraper plate (105), and the two connecting blocks (1021) are fixedly connected with the inclined scraper plate (105) after penetrating through the arc groove (101).

6. A boot unscraping device for an elevator as defined in claim 1, wherein: The cross section of the rubber scraper plate (501) is triangular, and the bottom surface of the rubber scraper plate (501) is fixed with a plug-in piece (5011), the upper inclined surface of the metal elastic plate (5) is provided with a plug-in groove (503), and the plug-in piece (5011) is inserted into the plug-in groove (503) and fixed with the metal elastic plate (5) by rotating the screw (502).

7. A boot unscraping device for an elevator as defined in claim 1 wherein: The outermost side of the lifting hopper (402) contacts the upper end of the metal elastic plate (5) when the lifting hopper (402) operates.

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