Granary grain leveling robot with combined type bulldozing mechanism
By using a composite leveling mechanism with a scissor-type lifting platform and angle adjustment components, the problems of uneven compaction and slope adaptability in grain storage leveling equipment have been solved, achieving efficient and safe operation of the grain surface.
Patent Information
- Application Number
- CN202520664233.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-04-10
AI Technical Summary
Existing grain leveling equipment suffers from problems such as uneven compaction due to fixed push plate height, inability to adapt to slope changes, and frequent manual intervention, which affect the quality and safety of grain storage.
The composite leveling mechanism, including a scissor lift platform, a three-stage push plate assembly, and an angle adjustment assembly, is adopted to dynamically adjust the force on the grain layer. Combined with a tracked chassis, it achieves a high degree of flatness of the grain surface without the need for manual trimming.
It achieves uniform compaction of the grain surface, and the grain surface has a high degree of flatness after a single leveling, reducing manual intervention and improving operation efficiency and safety.
Smart Images
Figure CN223906139U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to grain flattening device technical field, specifically is a grain depot grain flattening robot with composite type push flat mechanism. BACKGROUND
[0002] In grain storage operation, the grain pile surface flatness is one of the core indexes of guaranteeing the quality of stored grain. If the grain surface is uneven, it will lead to uneven ventilation, humidity stratification, mold breeding and other problems in the grain pile, directly affecting the grain storage period and safety.
[0003] The current grain depot grain flattening operation mainly relies on manual or semi-automatic equipment, which has the following technical problems:
[0004] 1. The problem of uneven compaction of low layer caused by fixed height of push plate
[0005] The traditional push flat equipment adopts rigid push plate with fixed height (such as single layer steel plate structure), and the push plate and the grain surface can only apply force through a single contact surface during operation. Because the density of the bottom layer of the grain pile is higher due to the action of gravity, and the surface layer of grain is loose and easy to flow, the extrusion strength of the fixed height push plate on the bottom layer is much higher than that on the surface layer during the running process, which leads to local excessive compaction (density deviation > 15%) of the bottom layer, forming a "hard shell layer", hindering the exchange of gas inside and outside the grain pile, and accelerating local mold. In addition, due to the difference in variety and humidity, the flowability of the grain pile is different, and the fixed push plate is difficult to dynamically adjust the force on the grain layer, further aggravating the uneven compaction.
[0006] 2. The limitation of single push plate that cannot adapt to the change of slope of grain pile
[0007] The surface of the grain pile often presents a local slope of 15°-30° due to the influence of pouring into the warehouse and natural settlement, and the existing push plate is mostly designed as a plane or a slight arc, which is not enough to fit the slope (effective contact area < 60%). When there is a gap between the push plate and the slope, the grain is easy to slide from the gap, forming a push flat blind area, which needs to be repeatedly pushed; and the push plate with excessive pressure will cause the grain at the top of the slope to be excessively scraped, and the grain at the bottom of the slope to be accumulated, forming "wavy" wrinkles. According to statistics, the flatness error of the grain surface after single push flat is still more than ±8cm, which needs to be manually adjusted for the second time, and the operation efficiency is reduced by more than 40%.
[0008] 3. The prominent contradiction between frequent manual intervention and safety hazards
[0009] The existing semi-automatic equipment needs to rely on manual real-time adjustment of parameters such as the inclination angle and the running speed of the push plate: the dust concentration in the grain depot is high (PM10>500g / m), the visibility is low (<3m), the grain surface has weak pressure bearing capacity (critical pressure <5kPa), and personnel stepping on the grain easily causes grain pile collapse accident. According to industry statistics, the safety accident rate of manual grain flattening operation is as high as 0.7%, and the dust exposure significantly increases the occupational health risk. The utility model discloses a kind of grain flat machine robots with composite push flat mechanism.
[0010] The utility model solves the technical problems of the above-mentioned technical defects, and provides a grain flat machine robot with a composite push flat mechanism.
[0011] To solve the above problems, the technical scheme of the utility model is as follows: a grain flat machine robot with a composite push flat mechanism, comprising a scissor lift, a tracked chassis is installed at the bottom of the scissor lift, a three-stage push plate assembly is installed at one end of the top, and an angle adjusting assembly is provided between the three-stage push plate assembly and the scissor lift.
[0012] The three-stage push plate assembly comprises a main push plate, a folding plate, and an expansion plate. Two sliding rails are installed at the front ends of the main push plate and the folding plate. A sliding block that is slidingly connected to the sliding rails is installed at the upper rear end of the folding plate and the expansion plate.
[0013] The angle adjusting assembly comprises a box installed at the top of the scissor lift. A servo motor is installed at one end of the box. A worm shaft is installed inside the output shaft of the servo motor. A transmission shaft is installed through the side of the box. A worm wheel that is engaged with the worm shaft is installed at the middle of the transmission shaft. Connection plates are fixedly connected to the two ends of the transmission shaft. The connection plates are fixedly connected to the main push plate.
[0014] Further, the scissor lift comprises a bottom plate and a top plate. Bendable portions are provided on both sides of the bottom plate and the top plate. Slotted holes are formed in the bendable portions. Two support arms one and two support arms two are rotatably connected to one end of the bottom plate and the top plate, respectively. The middle portions of the support arms one and two are rotatably connected. A connecting rod one is installed through the top portions of the two support arms one. A connecting rod two is installed through the bottom portions of the two support arms two. The connecting rod one is located in the slotted hole on the top plate. The connecting rod two is located in the slotted hole on the bottom plate. A driving assembly for driving the connecting rod two to move is installed on the bottom plate.
[0015] Further, the driving assembly comprises a motor base and a positioning plate. A driving motor is installed on the motor base. A lead screw is connected to the output shaft of the driving motor through a shaft coupling. The lead screw is rotatably installed on the positioning plate. A sliding seat is connected to the outer side of the connecting rod two. The lead screw is installed through and threadedly connected to the sliding seat.
[0016] Further, an electric push rod is provided between the main push plate and the folding plate, and between the folding plate and the expansion plate. The cylinder of one electric push rod is installed at the lower front end of the main push plate. The movable end is installed at the bottom rear end of the folding plate. The cylinder of the other electric push rod is installed at the lower front end of the folding plate. The movable end is installed at the bottom rear end of the expansion plate.
[0017] Further, two fixed plates are fixedly connected to the top of the scissor lift. The transmission shaft is installed through and rotatably connected to the fixed plates.
[0018] The utility model discloses compared with prior art has the advantages that: the utility model discloses the combination of the scissor lift, three -stage push plate subassembly and angle adjusting subassembly forms the composite push flat mechanism, can dynamic regulation the force to grain layer, and the grain surface flatness is high after single push flat, and need not secondary finishing and manual intervention, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is the three-dimensional of the utility model Figure 1 .
[0020] Figure 2 It is the three-dimensional of the utility model Figure 2 .
[0021] Figure 3 It is the structure diagram of the scissor lift of the utility model.
[0022] Figure 4 It is the connecting structure diagram of the electric push rod of the utility model.
[0023] Figure 5 It is the structure diagram of the angle adjusting subassembly of the utility model.
[0024] As shown in the figure: 1, scissor lift, 101, bottom plate, 102, top plate, 103, support arm one, 104, support arm two, 105, connecting rod one, 106, connecting rod two, 107, motor base, 108, positioning plate, 109, drive motor, 110, screw rod, 111, sliding seat, 2, tracked chassis, 3, three-stage push plate subassembly, 301, main push plate, 302, folding plate, 303, expansion plate, 304, slide rail, 305, sliding block, 306, electric push rod, 4, angle adjusting subassembly, 401, box, 402, servo motor, 403, worm, 404, transmission shaft, 405, worm wheel, 406, connecting plate, 407, fixed plate. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.
[0026] As Figures 1 to 5 shown, a grain depot grain leveling robot with composite push flat mechanism, including scissor lift 1, the bottom of scissor lift 1 is equipped with tracked chassis 2, one end top is equipped with three-stage push plate subassembly 3, and angle adjusting subassembly 4 is equipped between three-stage push plate subassembly 3 and scissor lift 1.
[0027] The scissors type lifting platform 1 comprises a bottom plate 101 and a top plate 102, both sides of the bottom plate 101 and the top plate 102 are provided with a bending part, and a sliding groove is formed on the bending part, one end of the bottom plate 101 and the top plate 102 is respectively rotatably connected with two support arms one 103 and two support arms two 104, and the middle parts of the support arms one 103 and the support arms two 104 are rotatably connected, the top parts of the two support arms one 103 are penetrated and installed with connecting rods one 105, the bottom parts of the two support arms two 104 are penetrated and installed with connecting rods two 106, the connecting rods one 105 are located in the sliding grooves on the top plate 102, the connecting rods two 106 are located in the sliding grooves on the bottom plate 101, and the bottom plate 101 is installed with a driving assembly for driving the connecting rods two 106 to move.
[0028] The driving assembly comprises a motor base 107 and a positioning plate 108, the motor base 107 is installed with a driving motor 109, the output shaft of the driving motor 109 is connected with a lead screw 110 through a shaft coupling, the lead screw 110 is rotatably installed on the positioning plate 108, the connecting rods two 106 are connected with sliding seats 111 outside, and the lead screw 110 penetrates and is screw-connected to the sliding seats 111.
[0029] The driving motor 109 drives the lead screw 110 to rotate, so as to drive the sliding seats 111 to drive the connecting rods two 106 to move, and the lifting of the top plate 102 can be realized.
[0030] The three-stage push plate assembly 3 comprises a main push plate 301, a folding plate 302 and an expansion plate 303, the front ends of the main push plate 301 and the folding plate 302 are installed with two sliding rails 304, the rear ends of the folding plate 302 and the expansion plate 303 are installed with sliding blocks 305 which are slidably connected with the sliding rails 304; the electric push rods 306 are arranged between the main push plate 301 and the folding plate 302 and between the folding plate 302 and the expansion plate 303, the cylinder body of one electric push rod 306 is installed on the lower part of the front end of the main push plate 301, and the movable end is connected to the bottom of the rear end of the folding plate 302, the cylinder body of the other electric push rod 306 is installed on the lower part of the front end of the folding plate 302, and the movable end is connected to the bottom of the rear end of the expansion plate 303.
[0031] The opening of the folding plate 302 and the expansion plate 303 can be realized through the elongation of the two electric push rods 306, and after being opened, a stepped push plane can be formed.
[0032] The angle adjusting assembly 4 comprises a box body 401 mounted on the top of the scissor lift platform 1, a servo motor 402 is mounted at one end of the box body 401, a worm 403 is mounted in the box body 401 and connected with the output shaft of the servo motor 402, a transmission shaft 404 is mounted through the side of the box body 401, a worm wheel 405 is mounted in the middle of the transmission shaft 404 and engaged with the worm 403, connecting plates 406 are fixedly connected at both ends of the transmission shaft 404, the connecting plates 406 are fixedly connected to the main push plate 301, two fixed plates 407 are fixedly connected to the top of the scissor lift platform 1, and the transmission shaft 404 is rotatably connected to the fixed plates 407.
[0033] The servo motor 402 drives the worm 403 to rotate, the worm 403 drives the transmission shaft 404 to rotate through the worm wheel 405, and the transmission shaft 404 drives the main push plate 301 to rotate through the connecting plates 406, so that the angle of the three-stage push plate assembly 3 is adjusted.
[0034] In specific use, the scissor lift platform 1 can be lifted according to the height of the grain pile to adjust the height, when the height of the scissor lift platform 1 is increased, the electric push rod 306 is elongated, the folding plate 302 and the expansion plate 303 can be unfolded, so that the bottom of the three-stage push plate assembly 3 can push the grain pile to be flat. The servo motor 402 drives the worm 403 to rotate, so that the angle of the three-stage push plate assembly 3 is adjusted, and manual adjustment of the angle is not required. Through the combination of the scissor lift platform 1, the three-stage push plate assembly 3 and the angle adjusting assembly 4, a composite flattening mechanism is formed, the force acting on the grain layer can be dynamically adjusted, the grain is uniformly compacted, the flatness of the grain surface after single flattening is high, and secondary modification and manual intervention are not required.
[0035] The parts not disclosed in the utility model are all prior art, for example, the track type chassis 2, and the specific structure and working principle thereof will not be described herein.
[0036] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0037] Although embodiments of the utility model have been shown and described, it will be understood by those having ordinary skill in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
[0038] The above describes the present application and its embodiments, which are not restrictive, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the spirit of the present application, without creative design, similar structure and embodiments of the technical solution, which should belong to the protection scope of the present application.
Claims
1. A grain leveling robot with a composite leveling mechanism, characterized in that: The application relates to a scissor lift (1) which is provided with a caterpillar chassis (2) at the bottom, a three-stage push plate assembly (3) at one end of the top, and an angle adjusting assembly (4) between the three-stage push plate assembly (3) and the scissor lift (1). The three-stage push plate assembly (3) comprises a main push plate (301), a folding plate (302) and an extension plate (303), two slide rails (304) are arranged at the front ends of the main push plate (301) and the folding plate (302), and a sliding block (305) which is in sliding connection with the slide rails (304) is arranged at the rear upper ends of the folding plate (302) and the extension plate (303). The angle adjusting assembly (4) comprises a box body (401) which is arranged at the top of the scissor lift (1), a servo motor (402) which is arranged at one end of the box body (401), a worm (403) which is arranged at the output shaft of the servo motor (402) in the box body (401), a transmission shaft (404) which is arranged through the side of the box body (401), a worm wheel (405) which is arranged in mesh with the worm (403) at the middle of the transmission shaft (404), and a connecting plate (406) which is fixedly connected to the main push plate (301) and arranged at the two ends of the transmission shaft (404).
2. The grain flattening robot with a composite flattening mechanism according to claim 1, characterized in that: The scissor lift (1) comprises a bottom plate (101) and a top plate (102), bending parts are arranged at the two sides of the bottom plate (101) and the top plate (102), sliding grooves are formed in the bending parts, two support arms (103) and two support arms (104) are rotatably connected to one end of the bottom plate (101) and the top plate (102) respectively, the middle parts of the support arms (103) and the support arms (104) are rotatably connected, a connecting rod (105) is arranged through the top parts of the two support arms (103), a connecting rod (106) is arranged through the bottom parts of the two support arms (104), the connecting rod (105) is arranged in the sliding groove on the top plate (102), the connecting rod (106) is arranged in the sliding groove on the bottom plate (101), and a driving assembly for driving the connecting rod (106) to move is arranged on the bottom plate (101).
3. The grain flattening robot with a compound flattening mechanism according to claim 2, wherein: The driving assembly comprises a motor base (107) and a positioning plate (108), a driving motor (109) is arranged on the motor base (107), a screw rod (110) is connected to the output shaft of the driving motor (109) through a shaft coupling, the screw rod (110) is rotatably arranged on the positioning plate (108), and a sliding seat (111) is connected to the outer side of the connecting rod (106).
4. The grain flattening robot with a compound flattening mechanism according to claim 1, wherein: Electric push rods (306) are arranged between the main push plate (301) and the folding plate (302) and between the folding plate (302) and the extension plate (303), the cylinder of one electric push rod (306) is arranged at the lower portion of the front end of the main push plate (301), and the movable end is connected to the bottom of the rear end of the folding plate (302); the cylinder of the other electric push rod (306) is arranged at the lower portion of the front end of the folding plate (302), and the movable end is connected to the bottom of the rear end of the extension plate (303).
5. The grain flattening robot with a compound flattening mechanism according to claim 1, wherein: Two fixed plates (407) are fixedly connected to the top of the scissors-type lifting platform (1), and the transmission shaft (404) penetrates and is rotationally connected to the fixed plates (407).