Reversible scraping arch breaking machine

Abstract

Hanging assemblies are fixed to the bottom of a crane beam extending in the breadth direction of a warehouse in pairs, the lower ends of each pair of hanging assemblies are hinged to the middles of a left frame and a right frame of a rectangular frame, an upper transmission shaft is installed above an upper cross beam of the rectangular frame, and traction chain wheels are fixed to the upper transmission shaft in pairs; the bottoms of lower cross beams of the rectangular frame are connected with tensioning mechanisms respectively, tensioning shafts are fixed to the lower ends of the tensioning mechanisms respectively, and redirection chain wheels are fixed to the tensioning shafts in pairs. Traction chains are wrapped between the traction chain wheels and the redirection chain wheels in the same set, a plurality of material scraping toothed plates extending in the transverse direction are evenly fixed to each pair of traction chains, the middle of the back face of each material scraping toothed plate is supported on a corresponding vertical rail through a wear-resisting guide plate, and the vertical rails are fixed in the rectangular frame and parallel to the left frame and the right frame. The reversible scraping arch breaking machine can conduct arch breaking and scraping on a high material layer in front in advance to enable the high material layer to be scattered, and can conduct reversing scraping.

Description

Technical Field

[0001] This utility model relates to an arch-breaking machine, and more particularly to a reversible scraper arch-breaking machine, which can be used for discharging material from flat warehouses storing soybean meal, and belongs to the technical field of warehouse discharge equipment. Background Technology

[0002] The storage yards of flat warehouses are rectangular, with a width often reaching 30 to 40 meters, and there is a trend towards wider yards. The depth sometimes reaches more than 200 meters. A dedicated unloading machine is required for unloading.

[0003] Chinese utility model patent CN 205346364U discloses a track-type unloading machine for use at the bottom of a flat warehouse. The machine includes a drive motor, an auger cover support bushing, an auger cover baffle assembly, an auger screw drive, an intermediate support wheel, an auger screw drive cover bracket, an auger assembly, a tail bearing seat, a travel track, a track cleaning slide, a travel sprocket, and a cleaning plate. The travel track is fixed to track ring beams on both sides of the flat warehouse. The travel sprocket meshes with the travel track. The auger assembly is mounted on the tail bearing seat on both sides, and the tail bearing seat is fixedly mounted on the fixed bracket of the track cleaning slide. The drive motor... Located on both sides of the discharge machine, the auger cover support bushings are fixedly mounted on the track cleaning slides via connecting brackets. The auger cover support bushings are bolted to the auger cover baffle assembly, which is fitted onto the auger assembly. Cleaning plates are installed on the upper and lower sides of the auger cover baffle assembly. The auger screw drive is connected to the auger assembly via a shaft. The blades on the auger assemblies on both sides of the auger screw drive rotate in opposite directions. The auger blades are serrated. The auger screw drive is fixedly mounted on the auger screw drive cover bracket. A middle traveling support wheel is mounted below the auger screw drive cover bracket, and the middle traveling support wheel is supported on the steel rail above the ground.

[0004] This unloading machine can unload materials with good flowability, such as soybeans. However, when storing highly compacted materials such as soybean meal in flat warehouses, the materials become severely compacted and lose their flowability after being piled up in the warehouse, becoming a solid mass similar to concrete. In such cases, the unloading machine will have difficulty completing the unloading task.

[0005] Chinese invention patent application CN116002405A discloses a high-layer caking material discharge machine, a flat warehouse discharge system, and a discharge method. The system includes a main frame extending laterally and capable of longitudinal movement. Two discharge drive and driven sprockets are respectively located at both ends of the main frame. A discharge chain is wrapped between the two discharge sprockets. Multiple scraper assemblies are evenly fixed along the circumference of the discharge chain. An arch-breaking device is installed on the top of the main frame. This device causes the high-layer caking material in front of the discharge machine to collapse prematurely. The arch-breaking auger inserts itself into the high-layer caking material in front, rotating and reciprocating laterally, creating continuous transverse breaks on the upper material layer to cause it to collapse downwards, facilitating the discharge machine's transport of the material to the pit.

[0006] This technical solution still faces the following problems in practice: To increase storage capacity per unit area, storage units are increasingly building increasingly taller stockpiles, with heights exceeding 12 meters becoming common. Soybean meal, after long-term stacking and adhesion, becomes a compacted, concrete-like mass. Although the arch-breaking auger is inserted into the high, compacted material ahead, the horizontal cut is only about 2 meters from the ground. The high, heavy, and difficult-to-break stockpile above remains. As the lower layer is hollowed out, the upper stockpile still experiences concentrated collapses, damaging the unloading equipment. With the increasing consumption of soybean meal in my country, there is an urgent need to solve the problem of breaking up and unloading high-layer compacted materials like soybean meal. Utility Model Content

[0007] The purpose of this utility model is to overcome the problems existing in the prior art and provide a reversible scraper arch breaker that can break arches in both directions on high material layers, so that the caking material pile collapses downward in advance, avoiding the formation of cliffs and damage to the discharge machine equipment.

[0008] To solve the above technical problems, this utility model provides a reversible scraper and arch breaker, comprising a traveling beam extending along the width of the storage compartment. A pair of hanging assemblies are fixed to the bottom of the traveling beam, with the lower ends of each pair of hanging assemblies symmetrically hinged to the outer middle of the left and right sides of a rectangular frame. A pair of upper supports are welded to the upper crossbeam of the rectangular frame, and both ends of the upper drive shaft are supported on the corresponding upper supports via bearing seats. A pair of traction sprockets are fixed to the upper drive shaft. The bottom part of the lower crossbeam of the rectangular frame... A tensioning mechanism is connected to the device, and a tensioning shaft is fixed to the lower end of the tensioning mechanism. A pair of redirecting sprockets are fixed on the tensioning shaft. A traction chain is wrapped between the traction sprockets and the redirecting sprockets in the same group. Multiple scraper teeth extending laterally are evenly fixed along the circumference of each pair of traction chains. A wear-resistant guide plate is fixed to the middle of the back of each scraper tooth. The grooves of each wear-resistant guide plate are supported on the corresponding vertical rails and match each other. Each vertical rail is fixed in a rectangular frame and parallel to the left and right sides.

[0009] Furthermore, a scraper reducer is fixedly installed below the middle section of the upper crossbeam. The input end of the scraper reducer is driven by a scraper motor, and a drive sprocket is installed on the output shaft of the scraper reducer. The drive sprocket is connected to the drive shaft sprocket through a short chain. The drive shaft sprocket is installed in the middle of the drive shaft, and both ends of the drive shaft are connected to the upper transmission shaft through couplings.

[0010] Furthermore, an upper lifting lug is fixed at the top center of the upper crossbeam, and a lower lifting lug is fixed at the bottom center of the lower crossbeam; the upper and lower lifting lugs are respectively suspended on the drum of the reversing winch by steel wire ropes.

[0011] Furthermore, the hanging assembly is an inverted triangle that is wider at the top and narrower at the bottom, and the middle of each pair of hanging assemblies is connected as a whole by a hanging crossbar.

[0012] Furthermore, the tensioning mechanism includes a tensioning fixing plate, a tensioning guide plate, and a lifting screw. The tensioning fixing plate is connected to the lower end of the vertical support, and the tensioning guide plate is connected to the lower end face of the tensioning fixing plate. A vertical adjustment groove is provided along the axis of the tensioning guide plate. The two ends of the tensioning shaft are respectively inserted into the corresponding vertical adjustment grooves. The lifting screw is respectively connected to the outer end of the tensioning shaft. The upper end of the lifting screw passes through the through hole of the tensioning fixing plate and is screwed with a lifting nut.

[0013] Furthermore, the upper end of the rectangular frame is higher than the top of the traveling beam.

[0014] Furthermore, a counterweight is fixed below the lower crossbeam of the rectangular frame.

[0015] Compared with the prior art, the present invention has achieved the following beneficial effects: 1. It can break up the slab-hardened high material layer about 12 meters in front of the hopper in advance from top to bottom, and avoid the formation of dangerous cliffs by hollowing out the lower part of the material pile during the arch breaking. It can also gradually break up the slab-hardened material at the top and allow it to collapse and fall downwards in advance, forming a safe slope and preventing the material pile at the top from breaking off in large pieces and causing it to overturn and damage the hopper equipment.

[0016] 2. When the discharge machine changes its direction of travel, the scraper and arch breaker can change its tilt direction and still complete the arch breaking of the material layer in front, thus achieving two uses in one machine.

[0017] 3. Pre-breaking the collapsing material will form a relatively low and continuous pile of loose material in front of the discharge machine. The discharge machine can easily discharge these low and continuous piles of material at a uniform speed, which can more continuously and stably transport the material to the next production line and ensure the stable supply of material to the production line.

[0018] 4. Divide the entire width of the flat warehouse into several units, and set up multiple sets of reversible scraping and arch-breaking machines in different areas to scrape and break the arches simultaneously, thereby increasing the speed of arch breaking and scraping several times, thus improving the speed and efficiency of warehouse discharge.

[0019] 5. It facilitates fully automated, unmanned, continuous, and safe material discharge from the warehouse, reduces personnel entry and exit, lowers the risk of safety accidents, and helps protect the health of personnel. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The drawings are provided for reference and illustration only and are not intended to limit the present invention.

[0021] Figure 1 This is a side view of the reversible scraper arch breaker of this utility model;

[0022] Figure 2 This is a perspective view of the reversible scraper arch breaker of this utility model;

[0023] Figure 3 This is a perspective view of the rectangular frame in this utility model;

[0024] Figure 4 This is a perspective view of the scraper toothed plate that moves with the chain in this utility model;

[0025] Figure 5 This is an exploded view of the chain drive mechanism in this utility model;

[0026] Figure 6 This is a perspective view of the chain tensioning mechanism in this utility model;

[0027] In the diagram: 1. Suspension assembly; 1a. Suspension crossbar; 2. Rectangular frame; 2a. Upper crossbeam; 2b. Lower crossbeam; 2c. Frame; 2d. Upper lifting lug; 2e. Lower lifting lug; 3. Vertical track; 4. Scraper motor; 5. Scraper reducer; 5a. Drive sprocket; 6. Short chain; 7. Drive shaft; 7a. Drive shaft sprocket; 8. Upper support; 9. Upper drive shaft; 9a. Traction sprocket; 10. Traction chain; 11. Tensioning fixing plate; 12. Tensioning guide plate; 13. Tensioning shaft; 13a. Redirecting sprocket; 14. Suspension screw; 15. Scraper toothed plate; 16. Wear-resistant guide plate; 17. Crane beam; 18. Counterweight; 19. Reversing winch; 20. Wire rope. Detailed Implementation

[0028] In the following description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not mean that the device must have a specific orientation.

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0031] like Figures 1 to 6 As shown, the reversible scraper arch-breaking machine of this utility model includes a traveling beam 17 extending along the width of the warehouse. The bottom of the traveling beam 17 is fixed with a pair of hanging components 1. The hanging components 1 are in the shape of an inverted triangle that is wider at the top and narrower at the bottom. The lower end of each pair of hanging components 1 is symmetrically hinged to the outer side of the middle of the left and right sidewalls 2c of the rectangular frame 2. The middle of each pair of hanging components 1 is connected as a whole by a hanging crossbar 1a.

[0032] A pair of upper supports 8 are welded above the upper crossbeam 2a of the rectangular frame 2. The two ends of the upper drive shaft 9 are supported on the corresponding upper supports 8 through bearing seats. A pair of traction sprockets 9a are fixed on the upper drive shaft 9.

[0033] Tensioning mechanisms are connected to the bottom of the lower crossbeam 2b of the rectangular frame 2. Tensioning shafts 13 are fixed to the lower ends of the tensioning mechanisms. A pair of redirecting sprockets 13a are fixed to the upper drive shaft 9. A traction chain 10 is wrapped around the traction sprocket 9a and the redirecting sprocket 13a in the same group. Multiple scraper teeth 15 extending laterally are evenly fixed along the length of the chain 10, i.e., circumferentially. The scraper teeth 15 are made of angle steel with the tooth surface facing outward. The back of each scraper tooth 15 is fixed to the corresponding link of each traction chain 10. Wear-resistant guide plates 16 are fixed to the middle part of the back of each scraper tooth. The grooves of each wear-resistant guide plate 16 are supported on the corresponding vertical rails 3 and are matched with each other. Each vertical rail 3 is fixed in the rectangular frame 2 and parallel to the left and right sidewalls 2c.

[0034] A scraper reducer 5 is fixed below the middle section of the upper crossbeam 2a. The input end of the scraper reducer 5 is driven by the scraper motor 4, and a drive sprocket 5a is installed on the output shaft of the scraper reducer 5. The drive sprocket 5a is connected to the drive shaft sprocket 7a through a short chain 6. The drive shaft sprocket 7a is installed in the middle of the drive shaft 7, and both ends of the drive shaft 7 are connected to the upper transmission shaft 9 through couplings. A counterweight 18 is fixed below the lower crossbeam 2b of the rectangular frame 2. Multiple sets of counterweights 18 are provided and are easy to disassemble and assemble, so that the entire center of gravity of the rectangular frame 2 rests on the hinge shaft at the lower end of the suspension assembly 1.

[0035] The upper lifting lug 2d is fixed to the top center of the upper crossbeam 2a, and the lower lifting lug 2e is fixed to the bottom center of the lower crossbeam 2b. The upper lifting lug 2d and the lower lifting lug 2e are respectively suspended on the rope drum of the reversing winch 19 by steel wire rope 20. The reversing winch located in front of the forward direction of the discharge machine retracts the steel wire rope, and the reversing winch behind releases the steel wire rope. The middle part of the rectangular frame 2 rotates around the hinge shaft at the lower end of the suspension assembly 1, causing the upper end of the scraper arch breaker to tilt forward. After contacting the material pile, it forms a slope on the material pile by scraping.

[0036] At this time, the upper end of the rectangular frame 2 is higher than the top of the traveling beam 17, ensuring that a slope is scraped out on the front side of the traveling beam 17, and ensuring that the traveling beam 17 moves forward smoothly with the unloading machine.

[0037] After the scraper motor 4 starts, the drive sprocket 5a rotates after being reduced in speed by the scraper reducer 5. The drive sprocket drives the drive shaft sprocket 7a to rotate via the short chain 6. The drive shaft sprocket 7a drives the upper transmission shaft 9 to rotate via the drive shaft 7. The upper transmission shaft 9 drives each traction sprocket 9a to rotate synchronously. Each traction sprocket 9a drives the lower redirecting sprocket 13a to rotate via the traction chain 10. While each traction chain 10 is running, it drives each scraper toothed plate 15 to scrape material upwards. During the scraping process, both ends of each scraper toothed plate 15 are pressed against the vertical track 3 by the concave arc groove of the wear-resistant guide plate 16, ensuring that the scraper toothed plate 15 and the traction chain 10 rotate continuously along a fixed line.

[0038] The traveling beam 17 extends along the width of the storage compartment, and multiple sets of reversible scraper and arch-breaking machines are installed along the length of the traveling beam 17, covering the entire width of the storage compartment. The two ends of the traveling beam 17 are supported on longitudinal tracks extending along the length of the storage compartment and move slowly along the length of the storage compartment.

[0039] The scraper toothed plate 15 scrapes and loosens the compacted material upwards along the material surface, allowing the material to fall along the slope and form a safe inclined opening. This prevents large pieces of material piled up at higher locations from breaking off and overturning, which could damage the discharge equipment. The material that falls to the ground is then conveyed laterally by the discharge machine.

[0040] The tensioning mechanism includes a tensioning fixing plate 11, a tensioning guide plate 12, and a tensioning screw 14. The tensioning fixing plate 11 is connected to the lower end of the vertical support, and the tensioning guide plate 12 is connected to the lower end face of the tensioning fixing plate 11. A vertical adjustment groove is provided along the axis of the tensioning guide plate 12. The two square shaft ends of the tensioning shaft 13 are respectively inserted into the corresponding vertical adjustment grooves. The tensioning screw 14 is respectively connected to the outer end of the tensioning shaft 13. The upper end of the tensioning screw 14 passes through the through hole of the tensioning fixing plate 11 and is screwed with a tensioning nut. By screwing in the tensioning nut, the tensioning shaft 13 is pushed down along the vertical adjustment groove of the tensioning guide plate 12 by the tensioning screw 14, thereby tensioning each traction chain 10.

[0041] The scraper arch breaker moves from one end of the flat warehouse to the other until all material is discharged. Then, the high end of the scraper arch breaker is lowered and the lower end is raised, so that the discharge machine moves to the other side of the scraper arch breaker. Then, the high end of the scraper arch breaker is lowered and the lower end is raised until the tilting direction of the scraper arch breaker is reversed, so that after the flat warehouse is refilled, material can be scraped and discharged in the opposite direction.

[0042] The above description is merely a preferred embodiment of the present utility model, showing and describing the basic principles, main features, and advantages of the present utility model. It is not intended to limit the scope of patent protection of the present utility model. Those skilled in the art should understand that the present utility model is not limited to the above embodiments. In addition to the above embodiments, the present utility model may have other implementations without departing from the spirit and scope of the present utility model. Various changes and improvements to the present utility model are also possible. All technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by the present utility model. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents. Technical features not described in the present utility model can be implemented by or using existing technology, and will not be elaborated here.

Claims

1. A reversible blade arch breaker comprising a travelling beam extending in the width direction of the silo, characterised in that: The bottom of the travelling beam is fixed with a pair of hanging assemblies, the lower ends of each pair of hanging assemblies are symmetrically hinged to the middle outer sides of the left and right side frames of the rectangular frame, a pair of upper supports are welded above the upper cross beam of the rectangular frame, the two ends of the upper transmission shaft are supported on the corresponding upper supports through bearing seats, and a pair of traction sprockets are fixed on the upper transmission shaft. The bottom of the lower cross beam of the rectangular frame is connected with a tensioning mechanism, the lower end of the tensioning mechanism is fixed with a tensioning shaft, and a pair of redirecting sprockets are fixed on the tensioning shaft. The traction sprockets and the redirecting sprockets in the same group are wrapped with traction chains, a plurality of transversely extending scraping tooth plates are uniformly fixed on each pair of traction chains along the circumferential direction of the traction chains, the middle parts of the back surfaces of the scraping tooth plates are respectively fixed with wear-resistant guide plates, the grooves of the wear-resistant guide plates are respectively supported on the corresponding vertical rails and are matched with each other, and the vertical rails are fixed in the rectangular frame and are parallel to the left and right side frames.

2. The reversible blade scrapper arch breaker as claimed in claim 1 wherein: A scraping speed reducer is fixedly installed below the middle section of the upper cross beam, the input end of the scraping speed reducer is driven by a scraping motor, and a driving sprocket is installed on the output shaft of the scraping speed reducer.

3. The reversible blade scraper arch breaker of claim 1, wherein: An upper lifting lug is fixed to the top center of the upper cross beam, and a lower lifting lug is fixed to the bottom center of the lower cross beam; the upper lifting lug and the lower lifting lug are respectively suspended on the rope drum of the reversing winch through steel wires.

4. The reversible blade scraper arch breaker of claim 1, wherein: The hanging assembly is in the shape of an inverted triangle with a wide upper part and a narrow lower part, and the middle parts of each pair of hanging assemblies are connected as a whole through a hanging cross bar.

5. The reversible blade scraper arch breaker of claim 1, wherein: The tensioning mechanism comprises a tensioning fixed plate, a tensioning guide plate and a tensioning screw rod, the tensioning fixed plate is connected to the lower end of the vertical support, the tensioning guide plate is connected to the lower end face of the tensioning fixed plate, a vertical adjusting groove is arranged along the axis of the tensioning guide plate, the two ends of the tensioning shaft are respectively inserted into the corresponding vertical adjusting grooves, the tensioning screw rod is respectively connected to the outer end of the tensioning shaft, the upper end of the tensioning screw rod passes through the through hole of the tensioning fixed plate and is screwed with a tensioning nut.

6. The reversible blade scraper arch breaker of claim 1, wherein: The upper end of the rectangular frame is higher than the top of the travelling beam.

7. The reversible wiper arching breaker of any one of claims 1 to 6, wherein: A counterweight is fixed below the lower cross beam of the rectangular frame.

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