A granary roof trestle system

Abstract

The present invention discloses a granary roof trestle system, comprising a connecting frame, a load-bearing frame, a mounting seat, and a stable conveying mechanism. The load-bearing frame comprises a mounting seat disposed at the bottom of the load-bearing frame, with a connecting frame disposed between two load-bearing frames. The stable conveying mechanism comprises a fastening assembly, a shock-absorbing assembly, and a buffer support assembly. The two fastening assemblies and two shock-absorbing assemblies are evenly spaced along the circumference of the mounting seat, the load-bearing frame is disposed on top of the shock-absorbing assembly, and two buffer support assemblies are symmetrically arranged on either side of the mounting seat, with the connecting frame disposed on top of the buffer support assembly. This system offers strong support and stability, ensuring the safety and stability of the entire bulk grain transportation system.

Description

Technical Field

[0001] The present invention relates to the technical field of bulk grain silo transportation, in particular to a silo roof trestle system. Background Art

[0002] At present, the bulk grain storage system in large domestic grain warehouses, such as shallow circular silos, generally adopts a silo roof trestle structure system for entering the silo. A steel structure trestle is erected between the roofs of multiple shallow circular silos, and a trestle bracket is arranged at the bottom of the trestle between two shallow circular silos for support. Grain conveyors such as belt conveyors, scraper conveyors or tube chain conveyors are arranged on the silo roof trestle to realize the silo entry operation.

[0003] The roof of a shallow silo is generally a reinforced concrete assembled integral type or a cast-in-place reinforced concrete silo roof. The pressure ring on the roof is generally used as the support of the trestle, which is fixed by bolts. The weight of the silo entering the silo and the weight of the bulk grain entering the silo are all borne by the trestle. The load is relatively large, and the trestle will be deformed by the vibration of the conveying device and the influence of wind force, which poses a great safety hazard. The stability of the trestle system is crucial to the bulk grain silo entry system.

[0004] At present, vertical trestle supports are generally arranged between two shallow round silos. At the same time, trestle supports are arranged on the pressure ring in the center of the silo roof and on the edge of the silo roof to support the trestle system. Bolts are generally used to fix the trestle system. Since the trestle system is outdoors, the outdoor wind and rain as well as the vibration of the conveyor when bulk grain is put into the silo will affect the stability of the trestle. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a granary roof trestle system, which can achieve rapid positioning and stable fixation by arranging an annular mounting seat. The cooperation of the buffer support assembly and the shock-absorbing assembly can not only stably support the trestle system, but also has good seismic performance, ensuring the safety and long-term stability of the entire system.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A granary roof trestle system includes a connecting frame, a load-bearing frame, a mounting seat and a stable conveying mechanism;

[0008] Load-bearing frame: A mounting seat is arranged at the bottom of the load-bearing frame, and a connecting frame is set between the two load-bearing frames;

[0009] Stable conveying mechanism: It includes a fastening assembly, a shock-absorbing assembly, and a buffer support assembly. The two fastening assemblies and the two shock-absorbing assemblies are evenly arranged along the circumference of the mounting seat. A load-bearing frame is set on the top of the shock-absorbing assembly. The two buffer support assemblies are symmetrically arranged on both sides of the mounting seat. A connecting frame is set on the top of the buffer support assembly.

[0010] Furthermore, the stable conveying mechanism also includes a gear ring, a gear 1 and a rack plate. The gear ring is rotatably connected to the middle part of the outer surface of the mounting seat. Gear 1 and a rack plate are provided on the mounting seat at positions corresponding to the fastening assembly and the shock absorbing assembly. The gear 1 is rotatably connected in the mounting seat, and the rack plate is slidably connected to the mounting seat. The upper end of the gear 1 is meshed with the lower end of the rack plate corresponding to it, and the lower end of the gear 1 is meshed with the inner wall of the gear ring.

[0011] Furthermore, the fastening assembly includes a slider, a screw and a knob. The slider on the fastening assembly is slidably connected to the inner wall of the upper end of the laterally distributed rack plate. The internal thread of the slider is connected to the screw, and a knob is arranged on the outside of the screw.

[0012] Furthermore, the shock absorbing assembly includes a slider 2, a damper 1 and a rubber block. The slider 2 is slidably connected to the inside of the longitudinally distributed rack plate, the damper 1 is arranged in the middle of the inside of the slider 2, and a rubber block is provided between the outer end of the slider 2 and the inner wall of the rack plate.

[0013] Furthermore, the shock absorbing assembly also includes a rib plate and a rubber buffer. The rib plate is arranged at the upper end of the slider 2, the rubber buffer is arranged at the upper end of the rib plate, and a load-bearing frame is arranged at the top end of the rubber buffer.

[0014] Furthermore, the stable conveying mechanism also includes a driving assembly, which includes a motor and gear 2. The motor is arranged on the outer surface of the mounting seat, and gear 2 is arranged at the input end of the motor. Gear 2 is meshed with the outer surface of the gear ring.

[0015] Furthermore, the buffer support assembly includes a top plate, a sliding column, a bottom plate, a connecting rod and a damper 2. The top plate is arranged in the middle of the lower end of the connecting frame. The four corners of the lower end of the top plate are provided with sliding columns. A bottom plate is slidably connected between the four sliding columns. Connecting rods are rotatably connected on both sides between the top plate and the bottom plate, and a damper 2 is arranged in the center of the top plate and the bottom plate.

[0016] Furthermore, a bracket is provided at the lower end of the base plate.

[0017] Furthermore, it also includes a fixing plate, which is rotatably connected to the lower end of the outer surface of the mounting seat, and a bolt hole is provided at the upper end of the fixing plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the granary roof trestle system has the following advantages:

[0019] 1. This application arranges an annular mounting seat at the grain inlet, which is quickly positioned and initially fixed through fastening components and shock-absorbing components. The transmission of positioning and fixing is stable and reliable, and then further fixed through the fixing plate at the bottom. The mounting seat has strong firmness and stability.

[0020] 2. The cooperation between the buffer support assembly and the shock absorbing assembly can vertically and horizontally buffer the external forces and the vibration forces during the bulk grain transportation process, which greatly increases the seismic performance and stability of the present application.

[0021] 3. The buffer support assembly transmits vibration more efficiently to the second damper through the movement of the connecting rod and the sliding column, so as to buffer the load, vibration and external force on the vertical connecting frame and increase the stability of the trestle system. When the force is relatively large and continues to move downward, the shock absorbing assembly formed by the first damper, the rubber block and the rubber buffer can further buffer and greatly increase the stability of the entire system.

[0022] 4. The entire structure of this application has strong support stability, excellent seismic performance and reasonable layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall installation structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the fastening assembly and the shock absorbing assembly of the present invention;

[0025] Figure 3 This is a structural diagram of the stable conveying mechanism of the present invention;

[0026] Figure 4 This is a schematic structural diagram of the buffer support assembly of the present invention;

[0027] Figure 5 is a schematic diagram of the cross-sectional structure of the fastening component;

[0028] Figure 6 Schematic diagram of the cross-sectional structure of the shock-absorbing component.

[0029] In the figure: 1 connecting frame, 2 load-bearing frame, 3 mounting seat, 31 outer bracket, 32 annular rib, 33 slide 1, 4 stable conveying mechanism, 41 gear ring, 42 gear 1, 43 rack plate, 431 rib, 432 slide 2, 433 rack, 44 fastening assembly, 441 slider 1, 442 screw rod, 443 knob, 45 shock absorption assembly, 451 slider 2, 452 damper 1, 453 rubber block, 454 rib plate, 455 rubber buffer, 46 driving assembly, 461 motor, 462 gear 2, 47 buffer support assembly, 471 top plate, 472 slide column, 473 bottom plate, 474 connecting rod, 475 damper 2, 48 bracket, 49 belt conveyor, 5 fixing plate, 6 switch controller, 7- auxiliary bracket. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1-4 , this embodiment provides a technical solution: a granary roof trestle system, including a connecting frame 1, a load-bearing frame 2, a mounting seat 3 and a stable conveying mechanism 4;

[0032] Load-bearing frame 2: A mounting seat 3 is arranged at the bottom of the load-bearing frame 2, and a connecting frame 1 is installed between the two load-bearing frames 2. A belt conveyor 49 for transporting bulk grain is arranged on the connecting frame 1. The mounting seat 3 is an annular seat, correspondingly installed at the outer periphery of the central grain inlet at the top of the shallow circular silo. It also includes a fixing plate 5, which is rotatably connected to the lower end of the outer surface of the mounting seat 3. The upper end of the fixing plate 5 is provided with evenly distributed bolt holes to facilitate fixing the mounting seat 3 to the outer periphery of the grain inlet. A switch controller 6 is fixed to the mounting seat 3. The switch controller 6 is located on the front end of the outer surface of the mounting seat 3 near the middle of the connecting frame 1. The switch controller 6 is used to control the operation of the motor.

[0033] Stable conveying mechanism 4: includes fastening components 44, shock-absorbing components 45, and buffer support components 47. The fastening components 44 are divided into two groups and are laterally symmetrically arranged at the upper ends of the two mounting seats 3. The shock-absorbing components 45 are also divided into two groups and are longitudinally symmetrically arranged at the upper ends of the two mounting seats 3. The fastening components 44 and shock-absorbing components 45 are spaced circumferentially on the mounting seats 3. The shock-absorbing components 45 are mounted in conjunction with the load-bearing frame 2. The buffer support component 47 is located between the two shallow circular silos and fixed to the bottom end of the middle part of the connecting frame 1 to support the connecting frame 1.

[0034] The stable conveying mechanism 4 also includes a gear ring 41, a gear 1 42 and a rack plate 43. The gear ring 41 is rotatably connected to the middle of the outer surface of the mounting base 3. The specific connection structure is as follows: Figure 2-3As shown in Figures 5-6, outer brackets 31 are provided on the outer periphery of the mounting base 3 at positions corresponding to the fastening assembly 44 and the shock-absorbing assembly 45. The outer brackets 31 are flush with the top surface of the mounting base 3 and are fixedly connected. A slide groove 33 is provided on the top of the outer bracket 31, and the slide groove 33 is arranged along the radial direction of the mounting base 3. A gear ring 41 is sleeved between the mounting base 3 and the outer bracket 31, wherein an annular rib 32 is provided on the outer side of the mounting base 3, and an annular groove matching the annular rib 32 is provided at the bottom of the gear ring 41. Four gears 42 are evenly arranged around the circumference of the mounting base 3, and the gears 42 are all rotatably connected to the internal cavity of the mounting base 3. The specific structure is as follows: a circular shaft is fixed at the bottom center of the gear 42, and a matching circular groove is provided inside the mounting base 3, so that the gear 42 can rotate along the circular shaft inside the mounting base 3. Ribs 431 are set on both sides of the lower part of the rack plate 43, the middle part is a slide groove 2 432, and racks 433 are set on both sides of the bottom. The ribs 431 on the lower part of the rack plate 43 are slidably connected with the slide groove 1 33, and the racks 433 on both sides of the lower part are meshed with the upper end of the gear 1 42. The lower ends of the four gears 1 42 are meshed with the inner wall of the gear ring 41, providing a basis for the fixing of the frame.

[0035] The fastening assembly 44 includes a slider 441, a screw rod 442 and a knob 443. The slider 441 is slidably connected to the laterally distributed slide groove 2 432. The screw rod 442 is threadedly connected to the internal thread of the slider 441. The knob 443 is fixed on the outside of the screw rod 442. When the knob 443 is rotated forward, the screw rod 442 rotates synchronously, driving the slider 441 to move inward and clamping the outer wall of the grain inlet. Reversing the rotation can make the slider 441 move outward, thereby fixing the outer wall of the grain inlet.

[0036] The shock-absorbing assembly 45 includes a second slider 451, a first damper 452, and a rubber block 453. The second slider 451 is slidably connected to the interior of the second slide groove 432 of the longitudinally symmetrically distributed rack plate 43. The first damper 452 is arranged in the middle of the second slider 451. The rubber block 453 is arranged between the outer end of the second slider 451 and the inner wall of the rack plate 43. The shock-absorbing assembly 45 also includes ribs 454 and rubber buffers 455. The ribs 454 are arranged at the upper end of the second slider 451, and the rubber buffers 455 are arranged at the upper end of the ribs 454. The rubber buffers 455 are conventional rubber buffers with a threaded hole in the center for fixing the upper and lower ends. The upper and lower end surfaces are high-strength steel plates, and the middle part is rubber. The upper end of the rubber buffer 455 of the present application is fixedly connected to the lower end of the top wall of the load-bearing frame 2, and the lower end is fixed to the ribs 454, which can reduce the vibration generated by bulk grain transportation.

[0037] The stable conveying mechanism 4 also includes a driving component 46, which includes a motor 461 and a gear 2 462. The motor 461 is arranged on the side of the front end of the outer surface of the mounting seat 3 away from the middle of the connecting frame 1. The motor 461 is controlled by the switch controller 6 to rotate forward, reverse or turn off. The gear 2 462 is arranged at the upper end of the output shaft of the motor 461. The gear 2 462 is meshed with the outer surface of the gear ring 41 located on the same mounting seat 3 to provide stable drive for the fixing work of the frame.

[0038] The buffer support assembly 47 includes a top plate 471, a sliding column 472, a bottom plate 473, a connecting rod 474 and a damper 2 475. The top plate 471 is fixed to the middle part of the lower end of the connecting frame 1 to play a supporting role. Sliding columns 472 are provided at the four corners of the lower end of the top plate 471. A bottom plate 473 is slidingly connected between the four sliding columns 472. Connecting rods 474 are rotatably connected between the top plate 471 and the bottom plate 473. The two connecting rods 474 are symmetrically distributed front to back. The fixed end of the lower end of the damper 2 475 is fixedly connected to the bottom plate 473, and the telescopic end is fixedly connected to the top plate 471. The specific structure of the connecting rod 477 includes an upper rod and a lower rod. The bottom of the lower rod is rotatably connected to the bottom plate 473, the top of the upper rod is rotatably connected to the top plate 471, and a U-shaped groove is set on the top of the lower rod. The upper rod is rotatably connected to the axis in the U-shaped groove at the top of the lower rod, which has a certain strength of support. When the top plate 471 is forced to move downward, the upper rod and the lower rod are folded inward, and the U-shaped groove plays a limiting role. The maximum contraction height of the connecting rod 477 is less than the maximum downward stroke of the damper 2 475, preventing the damper 2 475 from being damaged. The bottom of the buffer support assembly 47 is fixed with a bracket 48, which is set at the lower end of the bottom plate 473. The bracket 48 is distributed on both sides of the mounting seat 3, that is, on both sides of the shallow silo. On the one hand, it is used to support the connecting frame 1. On the other hand, the damper 2 475 can buffer the longitudinal force generated by external wind or bulk grain transportation, thereby increasing the stability of the trestle structure.

[0039] The working principle of the granary roof trestle system provided by the present invention is as follows: the mounting seat 3 is installed on the outside of the central grain inlet on the top of the shallow circular silo. During installation, the mounting seat 3 is arranged on the periphery of the grain inlet. By rotating the knob 44, the position of the slider 1 441 on the fastening component 44 is adjusted so that the distance between it and the grain inlet is greater than the distance between the damper 1 452 and the grain inlet. The motor 461 is controlled to rotate forward by the switch controller 6, and the output shaft of the motor 461 drives the gear 2 462 to rotate, and the gear ring 41 also rotates accordingly. As the gear ring 41 rotates, the gear 1 42 also rotates accordingly. As the gear 1 42 rotates, the rack plate 43 moves inward synchronously, driving the corresponding slider 1 441 and the slider 2 451 to move synchronously. Since the distance between the telescopic end of the damper 1 452 and the grain inlet is smaller than the distance between the inner end of the slider 1 441 and the warehouse opening, the telescopic end of the damper 1 452 first contacts the outer wall of the grain inlet. As the rack plate 43 continues to move, the telescopic end of the damper 1 452 contracts until the inner end of the slider 1 441 on the fastening assembly 44 is pressed against the outer wall of the grain inlet, and then the damper 1 452 and the slider 1 441 are fixedly connected to the outer wall of the grain inlet with bolts. The telescopic end of the damper 1 452 is retracted to form a prestressed force, which has a certain lateral shock absorbing effect. At this time, the positioning work is completed and the mounting seat 3 is also initially fixed. The fixing plate 5 is rotated to make the fixing plate 5 fit with the top surface of the shallow round silo, and the fixing plate 5 is fixed by bolts to complete the installation of the mounting base 3.

[0040] Install the ribs 454 and rubber buffers 455 above the second slider 451. Bolt the load-bearing frame 2 onto the mounting base 3, securing the upper end of the rubber buffer 455 to the lower end of the load-bearing frame 2. Next, install two brackets 48 symmetrically on either side of the shallow silo. Install the buffer support assemblies 47 on the brackets 48, securing the upper end of the brackets 48 to the lower end of the base plate 473. Install the connecting frame 1, completing the trestle installation. Once the trestle system is complete, arrange a belt conveyor 49 to transport bulk grain. The unloader on the belt conveyor 49 is connected to the grain inlet via a pipe, allowing the bulk grain to enter the silo.

[0041] When excessive wind or belt conveyor vibration occurs in the grain storage area, the load-bearing frame 2 and connecting frame 1 deflect under the applied force, causing the upper fixed plate of the rubber buffer 455 to shift synchronously. The rubber in the middle of the rubber buffer 455 deforms, partially mitigating the load. If the external force continues, the ribs 454 and slider 2 451 also deflect, causing the rubber block 453 to deform, further buffering the load. As slider 2 451 deflects, the telescopic end of damper 1 452 continues to contract, partially converting the vertical force into a lateral force, further providing buffering. The middle portion of connecting frame 1 is connected to bracket 48 via a buffer support assembly 47, forming a support structure. Similarly, when external forces such as wind or forces on the connecting frame are relatively large, the rubber buffers 455 distributed on both sides absorb vibration forces through the deformation of the middle rubber. When the vibration is transmitted to the middle of the connecting frame 1, the middle of the connecting frame 1 is deformed to press the top plate 471. The top plate 471 moves downward, driving the sliding column 472 to move downward synchronously. The upper and lower spacing of the connecting rod 474 becomes smaller, and the telescopic end of the damper 2 475 contracts. Through the movement of the sliding column 472 and the connecting rod 474, the force on the damper 2 475 is more evenly distributed, which can more effectively reduce vibrations, ensure the stability of the connecting frame 1 and the bracket, and make transportation work more stable.

[0042] Damper 1 and Damper 2 can be hydraulic dampers or spring dampers. In this embodiment, spring dampers are used. Furthermore, a sub-bracket 7 can be arranged on the mounting base 3 at a position spaced apart from the two ribs 454. A rubber buffer 455 is also fixed to the top of the sub-bracket 7 to support the load-bearing frame 2 and further increase the stability of the load-bearing frame.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A granary roof trestle system, characterized by: It comprises a connecting frame (1), a load-bearing frame (2), a mounting seat (3) and a stable conveying mechanism (4); Load-bearing frame (2): a mounting seat (3) is arranged at the bottom of the load-bearing frame (2), and a connecting frame (1) is provided between the two load-bearing frames (2); A stable conveying mechanism (4): comprising a fastening assembly (44), a shock absorbing assembly (45), and a buffer support assembly (47), wherein the two fastening assemblies (44) and the two shock absorbing assemblies (45) are evenly spaced along the circumference of the mounting seat (3), a load-bearing frame (2) is provided at the top of the shock absorbing assembly (45), and the two buffer support assemblies (47) are symmetrically arranged on both sides of the mounting seat (3), and a connecting frame (1) is provided at the top of the buffer support assembly (47); The stable conveying mechanism (4) further comprises a gear ring (41), a gear 1 (42) and a rack plate (43), wherein the gear ring (41) is rotatably connected to the middle portion of the outer surface of the mounting seat (3), and gear 1 (42) and rack plate (43) are provided at positions corresponding to the fastening assembly (44) and the shock absorbing assembly (45) on the mounting seat (3), wherein the gear 1 (42) is rotatably connected in the mounting seat (3), and the rack plate (43) is slidably connected to the upper end surface of the mounting seat (3), and the upper end of the gear 1 (42) is meshed with the lower end of the corresponding rack plate (43), and the lower end of the gear 1 (42) is meshed with the inner wall of the gear ring (41); The fastening assembly (44) includes a slider (441), a screw (442) and a knob (443). The slider (441) on the fastening assembly (44) is slidably connected to the inner wall of the upper end of the laterally distributed rack plate (43). The inner thread of the slider (441) is connected to the screw (442). The knob (443) is provided on the outer side of the screw (442). The shock absorbing assembly (45) includes a second slider (451), a damper (452) and a rubber block (453), wherein the second slider (451) is slidably connected to the interior of the longitudinally distributed rack plate (43), the damper (452) is arranged in the middle of the interior of the second slider (451), and the rubber block (453) is provided between the outer end of the second slider (451) and the inner wall of the rack plate (43); The buffer support assembly (47) includes a top plate (471), a sliding column (472), a bottom plate (473), a connecting rod (474) and a second damper (475). The top plate (471) is arranged at the middle of the lower end of the connecting frame (1). The four corners of the lower end of the top plate (471) are provided with sliding columns (472). A bottom plate (473) is slidably connected between the four sliding columns (472). Connecting rods (474) are rotatably connected on both sides between the top plate (471) and the bottom plate (473). The second damper (475) is provided at the center of the top plate (471) and the bottom plate (473).

2. The granary roof trestle system according to claim 1, characterized in that: The shock absorbing assembly (45) further comprises a rib plate (454) and a rubber buffer (455), wherein the rib plate (454) is arranged at the upper end of the second slider (451), the rubber buffer (455) is arranged at the upper end of the rib plate (454), and a load-bearing frame (2) is arranged at the top end of the rubber buffer (455).

3. The granary roof trestle system according to claim 1, characterized in that: The stable conveying mechanism (4) further includes a driving assembly (46), the driving assembly (46) including a motor (461) and a second gear (462), the motor (461) being arranged on the outer surface of the mounting seat (3), the second gear (462) being arranged at the input end of the motor (461), and the second gear (462) being meshedly connected with the outer surface of the gear ring (41).

4. The granary roof trestle system according to claim 1, characterized in that: A bracket (48) is provided at the lower end of the bottom plate (473).

5. The granary roof trestle system according to claim 1, characterized in that: It also includes a fixing plate (5), which is rotatably connected to the lower end of the outer surface of the mounting seat (3), and a bolt hole is provided at the upper end of the fixing plate (5).

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