Hopper cleanable elevator and method of cleaning a hopper

Abstract

The application discloses a hopper cleanable elevator and a hopper cleaning method. The hopper cleanable elevator comprises a shell, two ends of the shell are provided with rollers, a conveying belt is arranged around the two rollers, and a plurality of hopper mechanisms are arranged on the conveying belt at intervals. The hopper mechanism comprises a hopper frame arranged on the conveying belt, a scraping frame is arranged in the hopper frame and can be displaced up and down, the upper end of the scraping frame is connected with a lifting rod, the lifting rod is connected with the outer wall of the hopper frame through a spring, a belt is arranged at the inner bottom of the hopper frame, the belt at least partially penetrates through a through groove and is connected with a rotating shaft, and the one end of the rotating shaft is provided with a gear. A first air cylinder is arranged on one side of the shell, a rack is movably arranged on the other side of the shell, and the rack can be engaged with the gear. The problem that materials are bonded to the inner wall of the lifting hopper, are solidified in the hopper for a long time without cleaning and are very troublesome to clean subsequently is solved.

Description

Technical Field

[0001] This invention relates to the field of elevators, and more specifically, to a bucket-cleanable elevator and a bucket cleaning method. Background Technology

[0002] Bucket elevators are fixed mechanical conveying devices primarily suitable for the continuous vertical lifting of powdery, granular, and small lump materials. They are widely used in feed mills, flour mills, rice mills, oil mills, starch mills, grain depots, and port terminals of various sizes for lifting bulk materials. In actual operation, the materials to be lifted sometimes have a certain degree of stickiness. During the lifting process, the material will adhere to the inner wall of the buckets. If not cleaned for a long time, it will clump and solidify in the buckets, making subsequent cleaning very tedious. Summary of the Invention

[0003] The purpose of this invention is to provide a hopper-cleanable elevator and a hopper cleaning method, which solves the problem that in actual operation, sometimes the material to be lifted has a certain degree of stickiness. During the lifting process, the material will stick to the inner wall of the lifting hopper. If it is not cleaned for a long time, it will clump and dry in the hopper, making subsequent cleaning very cumbersome.

[0004] To achieve the above objectives, the present invention provides a hopper-cleanable elevator, which includes a housing, rollers at both ends of the housing, a conveyor belt that surrounds and connects the two rollers, and a plurality of hopper mechanisms that are spaced apart on the conveyor belt.

[0005] The hopper mechanism includes a hopper frame mounted on the conveyor belt, a scraping frame disposed vertically within the hopper frame, a lifting rod connected to the upper end of the scraping frame, the lifting rod being connected to the outer wall of the hopper frame via a spring, through grooves formed on opposite sides of the bottom of the hopper frame, a rotating shaft disposed near the through grooves on the outer wall of the hopper frame, a belt disposed at the inner bottom of the hopper frame, the belt passing at least partially through the through grooves and connected to the rotating shaft, and a gear disposed at one end of the rotating shaft;

[0006] A first cylinder is provided on one side of the housing, so that the piston rod of the first cylinder can abut against the lifting rod;

[0007] A rack is movably provided on the other side of the housing, so that the rack can mesh with the gear.

[0008] Preferably, the outer wall of the hopper frame is provided with a support, the support is provided with a sliding rod, the lifting rod is provided with a sliding hole, and the sliding rod passes through the sliding hole;

[0009] The spring is sleeved on the sliding rod.

[0010] Preferably, the lifting rod is provided with a connecting rod, the connecting rod is located inside the hopper frame, and a plurality of scraping frames are spaced apart on the connecting rod.

[0011] Preferably, the upper and lower sides of the scraping frame are respectively connected to a first scraper, and the first scraper is in contact with the inner wall of the hopper frame.

[0012] Preferably, a second scraper is provided on the inner wall of the hopper frame near the through groove, and the second scraper is in contact with the belt.

[0013] Preferably, the housing is provided with a controller electrically connected to the first cylinder, the controller being capable of controlling the intermittent extension and retraction of the first cylinder.

[0014] Preferably, the outer wall of the housing is provided with a sliding groove, and a sliding frame is slidably disposed in the sliding groove. One end of the sliding frame is connected to the rack, and the other end extends to the outside of the housing.

[0015] Preferably, a second cylinder is provided on the outer wall of the housing, and the piston rod of the second cylinder is connected to the sliding frame.

[0016] The present invention also provides a hopper cleaning method for the above-described hopper-cleanable elevator, the hopper cleaning method comprising:

[0017] 1) When the hopper frame on one side of the conveyor belt rises, the lifting rod on it contacts the piston rod of the first cylinder, causing the lifting rod to push the scraping frame downward. Then the piston rod of the first cylinder returns to its original position, and the lifting rod returns to its original position under the action of the spring. This process uses the scraping frame to clean the inner wall of the hopper frame.

[0018] 2) When the hopper frame on the other side of the conveyor belt descends, the gear meshes with the rack, causing the gear to drive the belt to rotate. During the rotation of the belt, it comes into contact with the second scraper, thereby cleaning the belt inside the hopper frame.

[0019] This invention provides a hopper-cleanable elevator and a hopper cleaning method. The hopper-cleanable elevator includes a housing with rollers at both ends. A conveyor belt surrounds and connects two of the rollers. Multiple hopper mechanisms are spaced apart on the conveyor belt. Each hopper mechanism includes a hopper frame mounted on the conveyor belt. A scraping frame is vertically movable within the hopper frame. A lifting rod is connected to the upper end of the scraping frame. The lifting rod is connected to the outer wall of the hopper frame via a spring. Through slots are formed on opposite sides of the bottom of the hopper frame. A rotating shaft is located on the outer wall of the hopper frame near the through slots. A belt is located at the inner bottom of the hopper frame, passing at least partially through the through slots and connected to the rotating shaft. A gear is located at one end of the rotating shaft. A first cylinder is located on one side of the housing, allowing the piston rod of the first cylinder to abut against the lifting rod. A rack is movably mounted on the other side of the housing, allowing the rack to mesh with the gear. After the elevator finishes conveying materials, some materials are highly viscous and require timely cleaning of the hopper frames to prevent them from clumping and hardening on the inner wall. The elevator provided by this invention, through the rotation of the conveyor belt, causes one hopper frame to rise. The lifting rod on this rising hopper frame contacts the piston rod of the first cylinder, causing the lifting rod to push the scraping frame downwards. Afterwards, the piston rod of the first cylinder returns to its original position, and the lifting rod returns to its original position under the action of a spring. This process uses the scraping frame to clean the inner wall of the hopper frame. The other hopper frame moves downwards during the rotation of the conveyor belt. During this movement, gears and racks mesh, causing the gears to drive the belt to rotate. The rotating belt contacts the second scraper, thus cleaning the inside of the hopper frame. This improved elevator can effectively scrape the inner and bottom walls of the hopper frame after material conveying has ended, removing any material adhering to the inner and bottom walls and preventing the problem of material clumping and adhering to the inner wall of the hopper frame for extended periods.

[0020] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a structural diagram of the hopper-cleanable elevator provided by the present invention from a first-view perspective;

[0023] Figure 2 This is a structural diagram of the hopper-cleanable elevator provided by the present invention from a second perspective.

[0024] Figure 3 yes Figure 1 Enlarged view of section A;

[0025] Figure 4 yes Figure 2 Enlarged view of section B;

[0026] Figure 5 This is a structural diagram of the hopper mechanism in the hopper-cleanable elevator provided by the present invention.

[0027] Explanation of reference numerals in the attached figures

[0028] 1-Housing; 2-Roller; 3-Conveyor belt; 4-Hopper mechanism; 5-Second cylinder; 6-Sliding frame; 7-Rack; 8-First cylinder; 41-Hopper frame; 42-Scraper frame; 43-Lifting rod; 44-Support; 45-Spring; 46-Sliding rod; 47-Belt; 48-Gear. Detailed Implementation

[0029] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] like Figure 1-5As shown: This invention provides a hopper-cleanable elevator, which includes a housing 1, with rollers 2 at both ends of the housing 1. A conveyor belt 3 surrounds and connects two of the rollers 2, and multiple hopper mechanisms 4 are spaced apart on the conveyor belt 3. Each hopper mechanism 4 includes a hopper frame 41 mounted on the conveyor belt 3, and a scraping frame 42 that is vertically movable inside the hopper frame 41. A lifting rod 43 is connected to the upper end of the scraping frame 42, and the lifting rod 43 is connected to the outer wall of the hopper frame 41 by a spring 45. The bottom of the hopper frame 41 has through grooves on opposite sides. A rotating shaft is provided on the outer wall of the hopper frame 41 near the through grooves. A belt 47 is provided on the inner bottom of the hopper frame 41. The belt 47 passes through the through grooves at least partially and is connected to the rotating shaft. A gear 48 is provided at one end of the rotating shaft. A first cylinder 8 is provided on one side of the housing 1, so that the piston rod of the first cylinder 8 can abut against the lifting rod 43. A rack 7 is movably provided on the other side of the housing 1, so that the rack 7 can mesh with the gear 48. After the elevator finishes conveying materials, some materials are highly viscous and require timely cleaning of the hopper frames to prevent them from clumping and hardening on the inner wall. The elevator provided by this invention, through the rotation of the conveyor belt, causes one hopper frame to rise. The lifting rod on this rising hopper frame contacts the piston rod of the first cylinder, causing the lifting rod to push the scraping frame downwards. Afterwards, the piston rod of the first cylinder returns to its original position, and the lifting rod returns to its original position under the action of a spring. This process uses the scraping frame to clean the inner wall of the hopper frame. The other hopper frame moves downwards during the rotation of the conveyor belt. During this movement, gears and racks mesh, causing the gears to drive the belt to rotate. The rotating belt contacts the second scraper, thus cleaning the inside of the hopper frame. This improved elevator can effectively scrape the inner and bottom walls of the hopper frame after material conveying has ended, removing any material adhering to the inner and bottom walls and preventing the problem of material clumping and adhering to the inner wall of the hopper frame for extended periods.

[0031] In a preferred embodiment of the present invention, in order to limit the vertical displacement of the lifting rod, a support 44 is provided on the outer wall of the hopper frame 41, a sliding rod 46 is provided on the support 44, a sliding hole is provided on the lifting rod 43, and the sliding rod 46 passes through the sliding hole.

[0032] The spring 45 is sleeved on the sliding rod 46.

[0033] In a preferred embodiment of the present invention, since the displacement distance of the scraping frame is limited, in order to effectively scrape the inner wall and increase its scraping area, a connecting rod is provided on the lifting rod 43. The connecting rod is located inside the hopper frame 41, and a plurality of scraping frames 42 are spaced apart on the connecting rod.

[0034] In a preferred embodiment of the present invention, in order to effectively scrape the inner wall of the hopper frame 41, the upper and lower sides of the scraping frame 42 are respectively connected with first scraping strips, and the first scraping strips are in contact with the inner wall of the hopper frame 41.

[0035] In a preferred embodiment of the present invention, in order to scrape off the belt at the lower end of the hopper frame 41, a second scraper is provided on the inner wall of the hopper frame 41 near the through groove, and the second scraper is in contact with the belt.

[0036] In a preferred embodiment of the present invention, in order to control the extension and retraction time and dwell time of the first cylinder 8, a controller electrically connected to the first cylinder 8 is provided on the housing 1, and the controller is capable of controlling the intermittent extension and retraction of the first cylinder 8.

[0037] In a preferred embodiment of the present invention, to prevent the rack and gear from contacting each other during normal lifting operations, a sliding groove is provided on the outer wall of the housing 1. A sliding frame 6 is slidably disposed within the sliding groove. One end of the sliding frame 6 is connected to the rack 7, and the other end extends to the outside of the housing 1. When cleaning of the hopper frame is required, the rack is displaced so that it engages with the gear.

[0038] In a preferred embodiment of the present invention, in order to drive the sliding frame 6 to move and thereby control the displacement of the rack, a second cylinder 5 is provided on the outer wall of the housing 1, and the piston rod of the second cylinder 5 is connected to the sliding frame 6.

[0039] The present invention also provides a hopper cleaning method for the above-described hopper-cleanable elevator, the hopper cleaning method comprising:

[0040] 1. When the hopper frame 41 on one side of the conveyor belt 3 rises, the lifting rod 43 on it abuts against the piston rod of the first cylinder 8, causing the lifting rod 43 to push the scraping frame 42 downward. Then the piston rod of the first cylinder 8 returns to its original position, and the lifting rod 43 returns to its original position under the action of the spring 45. During this process, the scraping frame 42 is used to clean the inner wall of the hopper frame 41.

[0041] 2. When the hopper frame 41 on the other side of the conveyor belt 3 descends, the gear 48 meshes with the rack 7, thereby causing the gear 48 to drive the belt to rotate. During the rotation of the belt, it contacts the second scraper, thereby cleaning the belt inside the hopper frame 41.

[0042] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0043] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0044] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A hopper-cleanable elevator, characterized in that, The hopper cleanable elevator includes a housing (1), with rollers (2) at both ends of the housing (1), and a conveyor belt (3) connecting the two rollers (2) around the conveyor belt (3). Multiple hopper mechanisms (4) are spaced apart on the conveyor belt (3). The hopper mechanism (4) includes a hopper frame (41) mounted on the conveyor belt (3). A scraping frame (42) is mounted inside the hopper frame (41) and can be displaced vertically. A lifting rod (43) is connected to the upper end of the scraping frame (42). The lifting rod (43) is connected to the outer wall of the hopper frame (41) via a spring (45). Through grooves are formed on opposite sides of the bottom of the hopper frame (41). A rotating shaft is mounted on the outer wall of the hopper frame (41) near the through grooves. A belt (47) is mounted on the inner bottom of the hopper frame (41). The belt (47) passes through the through grooves at least partially and is connected to the rotating shaft. A gear (48) is mounted on one end of the rotating shaft. A first cylinder (8) is provided on one side of the housing (1), so that the piston rod of the first cylinder (8) can abut against the lifting rod (43); A rack (7) is movably provided on the other side of the housing (1), so that the rack (7) can mesh with the gear (48); a sliding groove is provided on the outer wall of the housing (1), and a sliding frame (6) is slidably provided in the sliding groove. One end of the sliding frame (6) is connected to the rack (7), and the other end extends to the outside of the housing (1); a second cylinder (5) is provided on the outer wall of the housing (1), and the piston rod of the second cylinder (5) is connected to the sliding frame (6).

2. The hopper-cleanable elevator according to claim 1, characterized in that, The outer wall of the hopper frame (41) is provided with a support (44), a sliding rod (46) is provided on the support (44), a sliding hole is provided on the lifting rod (43), and the sliding rod (46) passes through the sliding hole; The spring (45) is sleeved on the sliding rod (46).

3. The hopper-cleanable elevator according to claim 1, characterized in that, A connecting rod is provided on the lifting rod (43), the connecting rod is located inside the hopper frame (41), and a plurality of scraping frames (42) are spaced apart on the connecting rod.

4. The hopper-cleanable elevator according to claim 3, characterized in that, The upper and lower sides of the scraping frame (42) are respectively connected to the first scraping strip, and the first scraping strip is in contact with the inner wall of the hopper frame (41).

5. The hopper-cleanable elevator according to claim 1, characterized in that, A second scraper is provided on the inner wall of the hopper frame (41) near the through groove, and the second scraper is in contact with the belt.

6. The hopper-cleanable elevator according to claim 1, characterized in that, The housing (1) is provided with a controller that is electrically connected to the first cylinder (8), and the controller is capable of controlling the intermittent extension and retraction of the first cylinder (8).

7. A method for cleaning the hopper of a hopper-cleanable elevator according to any one of claims 1-6, characterized in that, The hopper cleaning method includes: 1) When the hopper frame (41) on one side of the conveyor belt (3) rises, the lifting rod (43) on it abuts against the piston rod of the first cylinder (8), causing the lifting rod (43) to push the scraping frame (42) downward. Then the piston rod of the first cylinder (8) resets, and the lifting rod (43) resets under the action of the spring (45). This process uses the scraping frame (42) to clean the inner wall of the hopper frame (41). 2) When the hopper frame (41) on the other side of the conveyor belt (3) descends, the gear (48) meshes with the rack (7), thereby causing the gear (48) to drive the belt to rotate. During the rotation of the belt, it contacts the second scraper, thereby cleaning the belt inside the hopper frame (41).

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