Flattening device for bulk grain warehousing

Abstract

The invention relates to a leveling device for bulk grain warehousing, which comprises a rack, a working bracket with a rotating axis extending in the vertical direction is rotationally assembled on the rack, a belt conveyor is arranged on the working bracket, and the belt conveyor comprises a main body frame connected with the working bracket; the belt conveyor further comprises a telescopic frame assembled on the main body frame in the radial direction of the working support in a guiding and moving mode, a frame driving mechanism used for driving the telescopic frame to move in a reciprocating mode is arranged on the main body frame, and a first telescopic frame belt roller and a second telescopic frame belt roller are arranged at the two ends of the telescopic frame respectively. The telescopic frame first belt roller is located on the inner side of the telescopic frame second belt roller, and a main body frame first belt roller located between the telescopic frame first belt roller and the telescopic frame second belt roller is arranged on the main body frame. The technical problem that in the prior art, the grain distribution range is limited due to the fact that the grain distribution radius can only be changed by changing the grain throwing speed is solved.

Description

Technical Field

[0001] The invention relates to grain distribution equipment in the technical field of bulk grain storage, and in particular to a warehouse leveling device for bulk grain storage. Background Art

[0002] Flat warehouses and building warehouses are both common types of warehouses used for bulk grain storage. They have many storage advantages such as large storage space and higher storage efficiency.

[0003] The usual warehousing operation process of this type of warehouse is that an equipment layer is set on the roof of the corresponding storage space, and an equipment layer belt conveyor is set in the equipment layer. A plurality of grain drop-off openings are set at intervals along the length direction of the flat warehouse on the roof of the storage space, and a flat warehouse machine is set at the grain drop-off openings. When in use, the loose grain is transported to the grain drop-off openings by the equipment layer belt conveyor, and then transported to the warehouse of the flat warehouse by the flat warehouse machine at the grain drop-off openings.

[0004] The prior art grain leveling machine is disclosed in Chinese patent CN219507186U as "a grain silo throwing system". The grain silo throwing system includes a track arranged along the layout direction of the lower hopper, i.e., the grain outlet. A track car is installed on the track for guiding and moving. A working bracket with a rotating axis extending in the up-down direction is rotatably installed on the track car. A bracket driving mechanism for driving the working bracket to rotate is provided on the track car. A grain thrower with a grain feeding end and a grain discharging end is provided on the working bracket. The grain thrower includes a grain throwing belt and a grain throwing machine active roller and a grain throwing machine driven roller arranged at both ends of the grain throwing belt. The grain throwing machine active roller is driven by a grain throwing machine motor.

[0005] The working principle is that the grain thrower is a belt conveyor, and the loose grain falls onto the grain thrower through the grain drop port, and then is thrown into the warehouse of the flat warehouse by the grain thrower. The grain thrower can be rotated to change the grain throwing position, so as to achieve grain throwing in a circular direction to ensure the uniformity of grain distribution. The existing problem of this flat warehouse machine is that the grain thrower can only change the grain distribution radius by changing the grain throwing speed, and the grain distribution range is very limited. Summary of the invention

[0006] The object of the present invention is to provide a warehouse leveling device for bulk grain storage, so as to solve the technical problem in the prior art that the grain distribution radius can only be changed by changing the grain throwing speed, resulting in a limited distribution range.

[0007] In order to solve the above technical problems, the technical solution of a bulk grain storage device is as follows: A warehouse-leveling device for bulk grain entering a warehouse comprises a frame, a working support rotatably mounted on the frame and extending along a rotation axis in an up-and-down direction, a support driving mechanism driving the working support to rotate is arranged on the frame, a belt conveyor for conveying corresponding bulk grain from the inside to the outside along the radial direction of the working support is arranged on the working support, the belt conveyor is a telescopic belt conveyor, the belt conveyor comprises a main frame connected to the working support, the belt conveyor also comprises a telescopic frame mounted on the main frame along the radial direction of the working support, the main frame is provided with a frame driving mechanism for driving the telescopic frame to reciprocate, a first belt roller of the telescopic frame and a second belt roller of the telescopic frame are respectively arranged at both ends of the telescopic frame, the first belt roller of the telescopic frame is located on the inner side of the second belt roller of the telescopic frame, a first belt roller of the main frame located between the first belt roller of the telescopic frame and the second belt roller of the telescopic frame is arranged on the main frame, a second belt roller of the main frame driven by a motor is arranged on one end of the main frame away from the first belt roller of the main frame, and the belt conveyor also comprises a conveying belt passing through the first belt roller of the main frame, the second belt roller of the telescopic frame, the first belt roller of the telescopic frame and the first belt roller of the main frame.

[0008] Furthermore, the grain leveling machine also includes a track arranged along the layout direction of the grain delivery port, the frame is guided and moved and assembled on the track, and the frame is provided with a track wheel that contacts and rolls with the track, and the track wheel is driven by a track wheel motor.

[0009] Furthermore, the main frame is provided with a main frame belt support roller for supporting the conveying belt on the main frame; the telescopic frame is provided with a telescopic frame belt support roller for supporting the conveying belt on the telescopic frame, and the height of the telescopic frame belt support roller is lower than the height of the main frame belt support roller.

[0010] Furthermore, a first belt anti-friction wheel is provided on the telescopic frame, and there are multiple first belt anti-friction wheels, which are spaced apart along the length direction of the telescopic frame, and the bottom of the conveying belt between the first belt roller of the telescopic frame and the second belt roller of the telescopic frame is in contact and rolling cooperation with the first belt anti-friction wheel; a third belt anti-friction wheel is provided on the main frame, and there are multiple third belt anti-friction wheels, which are spaced apart along the length direction of the main frame, and the bottom of the conveying belt between the first belt roller of the telescopic frame and the first belt roller of the main frame is in contact and rolling cooperation with the third belt anti-friction wheel; a second belt anti-friction wheel is provided on the subject frame, and the bottom of the conveying belt between the first belt roller of the main frame and the second belt roller of the main frame is in contact and rolling cooperation with the second belt anti-friction wheel.

[0011] Furthermore, the height of the second belt anti-wear wheel is lower than the height of the third belt anti-wear wheel, and the height of the third belt anti-wear wheel is lower than the height of the first belt anti-wear wheel.

[0012] Furthermore, the telescopic frame includes a bottom frame and an upper frame arranged on the upper side of the bottom frame, a first belt roller of the telescopic frame and a second belt roller of the telescopic frame are arranged at both ends of the upper frame, an inner end of the upper frame is hingedly connected to the inner end of the bottom frame, a supporting spring is arranged between the outer end of the bottom frame and the outer end of the upper frame, the main frame includes a top crossbeam of the frame, a plurality of supporting rollers arranged at intervals along the inward and outward directions and used for contacting and rolling with the bottom of the top crossbeam of the frame are arranged at the upper end of the upper frame, the frame driving mechanism is transmission-connected to the bottom frame, a limiting groove is arranged at the far end of the top crossbeam, and when the upper frame moves out of the limiting groove from the inside to the outside along with the bottom frame, the top of the upper frame is limitedly matched with the limiting groove to realize the pitch angle adjustment of the upper frame.

[0013] Furthermore, a rack is provided on the side of the bottom frame and is radially arranged along the working bracket. The frame driving mechanism includes a frame driving motor arranged on the main frame. The motor shaft of the frame driving motor is transmission-connected with a driving gear meshing with the rack.

[0014] Furthermore, there are three supporting rollers, which are end rollers arranged at both ends of the upper frame and a middle roller arranged in the middle of the upper frame.

[0015] Furthermore, the main frame also includes a first crossbeam and a second crossbeam located at the lower side of the top crossbeam, the first crossbeam is arranged in parallel on the upper side of the second crossbeam, the bottom frame is located between the first crossbeam and the second crossbeam, an upper guide wheel group of the main frame that contacts and rolls with the upper end of the bottom frame is provided at the bottom of the first crossbeam, and a lower guide wheel group of the main frame that contacts and rolls with the bottom of the bottom frame is provided at the top of the second crossbeam.

[0016] Furthermore, the upper guide wheel group includes a plurality of upper guide wheels radially spaced apart along the working support, the lower guide wheel group includes a plurality of lower guide wheels radially spaced apart along the working support, the spacing between two adjacent upper guide wheels is smaller than the spacing between two adjacent support rollers, the spacing between two adjacent lower guide wheels is smaller than the spacing between two adjacent support rollers, and when the upper frame moves from the inside to the outside to the extreme position along with the bottom frame, at least two upper guide wheels and at least two lower guide wheels are in contact and cooperation with the bottom frame.

[0017] The beneficial effects of the present invention are as follows: in the present invention, when it is necessary to change the radial grain distribution range, the frame driving mechanism can be used to drive the telescopic frame to move back and forth along the main frame to achieve this. Specifically, when it is necessary to increase the grain distribution radius, when the telescopic frame moves from the inside to the outside, the inside-outside direction in the present invention refers to the axial position of the working bracket as the inside and the direction away from the axial position of the working bracket as the outside. The first belt roller and the second belt roller of the telescopic frame move outward with the telescopic frame, and the conveyor belt on the upper side of the second belt roller of the telescopic frame becomes longer, thereby increasing the grain distribution radius, and the conveyor belt between the first belt roller of the telescopic frame and the first belt roller of the main frame becomes shorter, thereby adapting to the overall telescopic movement of the telescopic frame. Similarly, when it is necessary to reduce the grain distribution radius, the telescopic frame can move from the outside to the inside under the drive of the frame driving mechanism, thereby reducing the grain distribution radius.

[0018] Furthermore, when faced with a silo with a relatively large length-to-width ratio, grain distribution at the corner where the long side and the wide side of the silo intersect is a difficult point, because it requires the belt conveyor to have a larger grain distribution radius. As the telescopic frame extends from the inside to the outside, when only one supporting roller contacts the top crossbeam, the upper frame will produce an elevation angle under the action of the supporting spring. As the upper frame continues to extend, the elevation angle will continue to increase. The maximum elevation angle of the upper frame does not exceed 45°. The increase in the elevation angle will further increase the grain distribution radius of the flattening device to meet the corresponding grain distribution needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 1 is a schematic diagram of the structure of the embodiment 1 of the warehouse leveling device for bulk grain storage in the present invention; Figure 2 yes Figure 1 Top view of the belt conveyor; Figure 3 yes Figure 1 A schematic diagram of the coordination between the main frame and the telescopic frame in the middle side view direction; Figure 4 yes Figure 1 Schematic diagram of the coordination between each belt roller and the conveyor belt; Figure 5 yes Figure 1 Structural diagram of the middle belt conveyor; Figure 6 yes Figure 1 A in the enlarged view; Figure 7 It is a structural schematic diagram of Embodiment 2 of the warehouse leveling device for bulk grain storage in the present invention; Figure 8 yes Figure 7 Schematic diagram of the coordination between the middle telescopic frame and the first belt roller of the telescopic frame and the second belt roller of the telescopic frame; Fig. 9 is a schematic diagram of a state in which the telescopic frame in Embodiment 2 of the present invention is extended outward; Fig.10 is a schematic diagram of the state when the telescopic frame in Embodiment 2 of the present invention is at the extension limit; 1. Grain leakage port; 2. Feed hopper; 3. Silo roof; 4. Track wheel; 5. Track; 6. Frame; 7. Working bracket; 8. Conveyor belt; 9. Second belt roller of telescopic frame; 10. Belt conveyor; 11. Counterweight; 12. Telescopic frame; 13. Main frame; 14. Second belt roller of main frame; 15. First belt roller of telescopic frame; 16. Upper guide wheel group of main frame; 17. Lower guide wheel group of main frame; 18. First belt roller of main frame; 19. First belt anti-wear wheel; 20. Second belt anti-wear wheel; 21. Third belt anti-wear wheel; 22. Rack; 23. Main frame belt support roller; 24. Telescopic frame belt support roller; 25. Track wheel motor; 26. Reversing roller; 27. Top crossbeam of frame; 28. First crossbeam; 29. ​​Second crossbeam; 30. End roller; 31. Middle roller; 32. Upper frame; 33. Bottom frame; 34. Upper guide wheel; 35. Lower guide wheel; 36. Articulated shaft; 37. Support spring; 38. Limiting groove. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are provided in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0022] Embodiment 1 of a warehouse-leveling device for bulk grain storage in the present invention is as follows Figures 1 to 6 As shown: Before describing the structure of the flat warehouse device for storing bulk grain in the present invention, a simple structural introduction is first given to the flat warehouse in the prior art. The flat warehouse includes a warehouse roof 3, the upper side of the warehouse roof is an equipment layer, the lower side of the warehouse roof is a warehouse for storing grain, the width of the warehouse extends along the left and right directions, and the length of the warehouse extends along the front and back directions. A bulk grain conveyor is arranged in the equipment layer, and a plurality of grain leakage ports 1 are arranged at intervals on the warehouse roof along the front and back directions. The bulk grain conveyor is used to transport the bulk grain to each grain leakage port.

[0023] The warehouse leveling device for bulk grain storage includes a frame 6, on which is rotatably mounted a working bracket 7 with a rotating axis extending in the up-and-down direction. The working bracket 7 is a cylindrical structure, and the frame is provided with a bracket driving mechanism for driving the working bracket to rotate. The warehouse leveling machine also includes a track 5 arranged along the layout direction of the grain drop port, the track 5 is fixed to the bottom of the warehouse top, and the frame is guided and moved on the track 5. The frame is provided with a track wheel 4 that contacts and rolls with the track, and the track wheel 4 is driven by a track wheel motor 25.

[0024] The frame is provided with a feed hopper 2 coaxially arranged with the working bracket, the upper end of the feed hopper 2 is a feed inlet for communicating with the grain drop port, and the lower end of the feed hopper is a feed outlet corresponding to the conveyor belt on the main frame. The above all belong to the prior art and will not be described in detail here.

[0025] The improvement of the present invention is that a belt conveyor 10 for conveying corresponding bulk grain from inside to outside along the radial direction of the working support is arranged on the working support, and the belt conveyor 10 is a telescopic belt conveyor.

[0026] The belt conveyor includes a main frame 13 connected to the working support 7, and the belt conveyor also includes a telescopic frame 12 assembled on the main frame along the radial guide movement of the working support 7. The length direction of the main frame 13 and the telescopic frame 12 is consistent with the moving direction of the telescopic frame 12. The main frame 13 is provided with a frame driving mechanism for driving the telescopic frame to move back and forth. The two ends of the telescopic frame 12 are respectively provided with a first belt roller 15 of the telescopic frame and a second belt roller 9 of the telescopic frame. The first belt roller 15 of the telescopic frame is located on the inner side of the second belt roller 9 of the telescopic frame. The frame 13 is provided with a main frame first belt roller 18 located between the telescopic frame first belt roller and the telescopic frame second belt roller, and the main frame is provided with a main frame second belt roller 14 driven by a motor at one end away from the main frame first belt roller, and the main frame is also provided with two reversing rollers 26 for conveying belts to be wound around and reversing beside the second belt roller. The belt conveyor also includes a conveying belt 8 wound around the main frame first belt roller 18, the reversing roller 26, the telescopic frame second belt roller 9, the telescopic frame first belt roller 15 and the main frame first belt roller 18. The inside and outside directions in the present invention refer to the axis position of the working bracket as the inside and the direction away from the axis of the working bracket as the outside.

[0027] In this embodiment, the main frame 13 is provided with an upper guide wheel group 16 of the main frame which is in contact and rolling cooperation with the upper end of the telescopic frame, and a lower guide wheel group 17 of the main frame which is in contact and rolling cooperation with the lower end of the telescopic frame. The upper guide wheel group 16 of the main frame and the lower guide wheel group 17 of the main frame both include a plurality of guide wheels radially spaced apart along the working support, and the axis of each guide wheel is perpendicular to the moving direction of the telescopic frame. The telescopic frame 12 is located between the upper guide wheel group and the lower guide wheel group.

[0028] The side of the telescopic frame is provided with a rack 22 arranged along the radial direction of the working support. The frame driving mechanism includes a frame driving motor provided on the main frame. The motor shaft of the frame driving motor is connected to a driving gear (not shown in the figure) that meshes with the rack. When working, the driving gear meshes with the rack 22, and the driving gear rotates forward, and the telescopic frame can move outward along the radial direction of the working support. The driving gear rotates in the reverse direction, and the telescopic frame can move inward along the radial direction of the working support, thereby changing the grain distribution radius.

[0029] The main frame 13 is provided with a main frame belt support roller 23 for supporting the conveying belt on the main frame; the telescopic frame is provided with a telescopic frame belt support roller 24 for supporting the conveying belt on the telescopic frame, and the height of the telescopic frame belt support roller 24 is lower than the height of the main frame belt support roller 23.

[0030] In order to avoid the bottom of the conveying belt between the first belt roller 15 of the telescopic frame and the second belt roller 9 of the telescopic frame from contacting and wearing with the telescopic frame 12, a first belt anti-wear wheel 19 for supporting the conveying belt at this position is provided on the telescopic frame 12, and there are multiple first belt anti-wear wheels, and the multiple first belt anti-wear wheels are arranged at intervals along the length direction of the telescopic frame; in order to avoid the bottom of the conveying belt between the first belt roller 15 of the telescopic frame and the first belt roller 18 of the main frame from contacting and wearing with the main frame, a third belt anti-wear wheel 21 for supporting the conveying belt at this position is provided on the main frame, and there are multiple third belt anti-wear wheels 21, and the multiple third belt anti-wear wheels are arranged at intervals along the length direction of the main frame; in the same way, in order to avoid the bottom of the conveying belt between the first belt roller 18 of the main frame and the second belt roller 14 of the main frame from contacting and wearing with the main frame, a second belt anti-wear wheel 20 for supporting the conveying belt at this position is provided on the main frame, and the height of the second belt anti-wear wheel is lower than the height of the third belt anti-wear wheel, and the height of the third belt anti-wear wheel is lower than the height of the first belt anti-wear wheel. Item 11 in the figure represents a counterweight provided at the end of the main frame.

[0031] An anti-collision sensor is installed at the outer end of the telescopic frame. When the telescopic frame is in the extended state, the overall length of the belt conveyor is relatively long. When the belt conveyor changes the grain distribution position as the working bracket rotates, it is possible to collide with the warehouse wall. When it is about to reach the collision position, the anti-collision sensor detects the distance between the outer end of the telescopic frame and the warehouse wall. When the distance is too close, an alarm is sounded, and the frame drive motor drives the telescopic frame to retract, thereby avoiding the telescopic frame from colliding with the warehouse wall.

[0032] Embodiment 2 of a warehouse-leveling device for bulk grain storage Figures 7 to 10 As shown: For a flat warehouse, its storage space is a rectangular storage space with a length greater than its width. In Example 1, the maximum extension limit of the telescopic frame from the inside to the outside determines the maximum grain distribution radius of the flat warehouse device. The grain outlet is generally set at the center position of the width direction of the rectangular storage space, and the grain outlet is farthest from the corner of the rectangular storage space. In Example 1, the grain distribution radius is changed only by the extension and contraction of the telescopic frame. In order to achieve grain distribution at the corner position, the telescopic frame needs to have a larger extension range. On the one hand, this will increase the length of the main frame and make the product more bulky; in addition, during the rotation of the main frame with the working bracket, the telescopic frame also needs to retract a longer distance to avoid collision with the warehouse wall. The longer extension stroke of the telescopic frame will also affect the overall grain distribution efficiency.

[0033] In the present invention, the telescopic frame 12 is not only telescopic, but the upper frame of the telescopic frame 12 can also be adjusted in pitch angle. When the conveying speed of the conveyor belt remains unchanged, the grain distribution radius is increased by increasing the pitch angle of the conveyor belt throwing end.

[0034] Specifically, the telescopic frame includes a bottom frame 33 and an upper frame 32 disposed on the upper side of the bottom frame 33. The first belt roller 15 of the telescopic frame and the second belt roller 9 of the telescopic frame are disposed at both ends of the upper frame 32. The inner end of the upper frame 32 is hingedly connected to the inner end of the bottom frame 33 through a hinge shaft 36. A support spring 37 is disposed between the outer end of the bottom frame 33 and the outer end of the upper frame 32. The support spring 37 is a spiral compression spring. The main frame includes a frame top crossbeam 27. The upper end of the upper frame is provided with a plurality of support rollers arranged at intervals along the inner and outer directions for contacting and rolling with the bottom of the frame top crossbeam. There are three support rollers, which are end rollers 30 disposed at both ends of the upper frame and a middle roller 31 disposed in the middle of the upper frame.

[0035] The frame driving mechanism is connected to the bottom frame in driving relationship. A limiting groove 38 is arranged at the far end of the top crossbeam. The limiting groove 38 is an inclined structure which gradually extends upward from the inside to the outside. When the upper frame moves out of the limiting groove from the inside to the outside along with the bottom frame, the top of the upper frame contacts and cooperates with the limiting groove to achieve the pitch angle adjustment of the upper frame.

[0036] The side of the bottom frame is provided with a rack 22 arranged radially along the working support. The frame driving mechanism includes a frame driving motor arranged on the main frame. The motor shaft of the frame driving motor is connected to a driving gear meshing with the rack.

[0037] The main frame also includes a first crossbeam 28 and a second crossbeam 29 located at the lower side of the top crossbeam of the frame. The first crossbeam 28 is arranged in parallel at the lower side of the top crossbeam 27 of the frame, and the first crossbeam 28 is arranged in parallel at the upper side of the second crossbeam 29. The bottom frame 33 is located between the first crossbeam 28 and the second crossbeam 29. The bottom of the first crossbeam is provided with a main frame upper side guide wheel group 16 that contacts and rolls with the upper end of the bottom frame, and the top of the second crossbeam is provided with a main frame lower side guide wheel group 17 that contacts and rolls with the bottom of the bottom frame.

[0038] The upper guide wheel group includes a plurality of upper guide wheels 34 distributed at radial intervals along the working support, and the lower guide wheel group includes a plurality of lower guide wheels 35 distributed at radial intervals along the working support. The spacing between two adjacent upper guide wheels 34 is smaller than the spacing between two adjacent support rollers, and the spacing between two adjacent lower guide wheels 35 is smaller than the spacing between two adjacent support rollers. When the upper frame moves from the inside to the outside to the extreme position along with the bottom frame, at least two upper guide wheels and at least two lower guide wheels are in contact and cooperate with the bottom frame.

[0039] In this embodiment, the motor shaft of the frame drive motor drives the drive gear to rotate, and the drive gear engages with the rack, thereby moving the telescopic frame from the inside to the outside to change the grain distribution radius. At the beginning of the movement from the inside to the outside, the telescopic frame has two support rollers that contact and roll with the bottom of the top beam. Therefore, the upper frame of the telescopic frame can maintain horizontal outward movement to achieve a close-point grain distribution operation. As the telescopic frame continues to move from the inside to the outside, when only one end support roller contacts and rolls with the bottom of the top beam, under the action of the support spring, the outer end of the upper frame will be tilted up, and the top of the upper frame will contact and cooperate with the limiting groove. The limiting groove plays a role in controlling the elevation angle of the upper frame. As the upper frame continues to move outward, the elevation angle of the upper frame will become larger and larger, so the grain throwing elevation angle of the conveying belt will become larger and larger, so that when the movement of the telescopic frame is limited, the conveying speed of the conveying belt can be coordinated to make the belt conveyor have a larger grain distribution radius. The maximum elevation angle of the upper frame is 45°. When the telescopic frame is retracted from the outside to the inside, the limit groove cooperates with the top crossbeam guide to facilitate the support roller to retreat with the upper frame.

[0040] In the above description of this specification, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0041] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or position relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0042] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A warehouse leveling device for bulk grain storage, comprising a frame, a working bracket rotatably mounted on the frame with a rotation axis extending in the up-down direction, and a bracket driving mechanism for driving the working bracket to rotate, characterized in that: The working support is provided with a belt conveyor for conveying corresponding bulk grain from the inside to the outside along the radial direction of the working support, and the belt conveyor is a telescopic belt conveyor. The belt conveyor includes a main frame connected to the working support, and the belt conveyor also includes a telescopic frame assembled on the main frame along the radial guiding movement of the working support, and the main frame is provided with a frame driving mechanism for driving the telescopic frame to reciprocate, and the two ends of the telescopic frame are respectively provided with a first belt roller of the telescopic frame and a second belt roller of the telescopic frame, and the first belt roller of the telescopic frame is located on the inner side of the second belt roller of the telescopic frame, and the main frame is provided with a first belt roller of the main frame located between the first belt roller of the telescopic frame and the second belt roller of the telescopic frame, and the end of the main frame away from the first belt roller of the main frame is provided with a second belt roller of the main frame driven by a motor, and the belt conveyor also includes a conveying belt passing through the first belt roller of the main frame, the second belt roller of the telescopic frame, the first belt roller of the telescopic frame and the first belt roller of the main frame.

2. The liquidation device according to claim 1, characterized in that: The bin leveling machine also includes a track arranged along the layout direction of the grain drop port, the frame is guided and moved and assembled on the track, and the frame is provided with a track wheel that contacts and rolls with the track, and the track wheel is driven by a track wheel motor.

3. The liquidation device according to claim 1, characterized in that: The main frame is provided with a main frame belt support roller for supporting the conveying belt on the main frame; the telescopic frame is provided with a telescopic frame belt support roller for supporting the conveying belt on the telescopic frame, and the height of the telescopic frame belt support roller is lower than the height of the main frame belt support roller.

4. The liquidation device according to claim 1, characterized in that: The telescopic frame is provided with a first belt anti-friction wheel, and there are multiple first belt anti-friction wheels, which are spaced apart along the length direction of the telescopic frame, and the bottom of the conveying belt between the first belt roller of the telescopic frame and the second belt roller of the telescopic frame is in contact and rolling cooperation with the first belt anti-friction wheel; the main frame is provided with a third belt anti-friction wheel, and there are multiple third belt anti-friction wheels, which are spaced apart along the length direction of the main frame, and the bottom of the conveying belt between the first belt roller of the telescopic frame and the first belt roller of the main frame is in contact and rolling cooperation with the third belt anti-friction wheel; the main frame is provided with a second belt anti-friction wheel, and the bottom of the conveying belt between the first belt roller of the main frame and the second belt roller of the main frame is in contact and rolling cooperation with the second belt anti-friction wheel.

5. The liquidation device according to claim 4, characterized in that: The height of the second belt anti-wear wheel is lower than that of the third belt anti-wear wheel, and the height of the third belt anti-wear wheel is lower than that of the first belt anti-wear wheel.

6. The warehouse closing device according to any one of claims 1 to 5, characterized in that: The telescopic frame includes a bottom frame and an upper frame arranged on the upper side of the bottom frame, a first belt roller of the telescopic frame and a second belt roller of the telescopic frame are arranged at both ends of the upper frame, an inner end of the upper frame is hingedly connected to the inner end of the bottom frame, a supporting spring is arranged between the outer end of the bottom frame and the outer end of the upper frame, a main frame includes a top crossbeam of the frame, a plurality of supporting rollers arranged at intervals along the inward and outward directions at the upper end of the upper frame for contacting and rolling with the bottom of the top crossbeam of the frame are arranged, a frame driving mechanism is transmission-connected to the bottom frame, a limiting groove is arranged at the far end of the top crossbeam, and when the upper frame moves out of the limiting groove from the inside to the outside along with the bottom frame, the top of the upper frame is limitedly matched with the limiting groove to realize the pitch angle adjustment of the upper frame.

7. The liquidation device according to claim 6, characterized in that: The side of the bottom frame is provided with a rack radially arranged along the working support. The frame driving mechanism includes a frame driving motor arranged on the main frame. The motor shaft of the frame driving motor is transmission-connected with a driving gear meshing with the rack.

8. The liquidation device according to claim 6, characterized in that: There are three supporting rollers, which are end rollers arranged at both ends of the upper frame and a middle roller arranged in the middle of the upper frame.

9. The liquidation device according to claim 6, characterized in that: The main frame also includes a first crossbeam and a second crossbeam located at the lower side of the top crossbeam, the first crossbeam is arranged in parallel on the upper side of the second crossbeam, the bottom frame is located between the first crossbeam and the second crossbeam, an upper guide wheel group of the main frame that contacts and rolls with the upper end of the bottom frame is provided at the bottom of the first crossbeam, and a lower guide wheel group of the main frame that contacts and rolls with the bottom of the bottom frame is provided at the top of the second crossbeam.

10. The liquidation device according to claim 9, characterized in that: The upper guide wheel group includes a plurality of upper guide wheels radially spaced apart along the working support, and the lower guide wheel group includes a plurality of lower guide wheels radially spaced apart along the working support. The spacing between two adjacent upper guide wheels is smaller than the spacing between two adjacent support rollers, and the spacing between two adjacent lower guide wheels is smaller than the spacing between two adjacent support rollers. When the upper frame moves from the inside to the outside to the extreme position along with the bottom frame, at least two upper guide wheels and at least two lower guide wheels are in contact and cooperation with the bottom frame.

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