Pull-type horizontal warehouse delivery device

Abstract

The utility model discloses a traction type horizontal warehouse delivery device which comprises a machine frame extending in the full width direction of a horizontal warehouse, at least two pairs of walking wheels are symmetrically arranged at the bottom of the machine frame, and the walking wheels are symmetrically distributed with the axis in the width direction of the horizontal warehouse as the center and supported on corresponding rails respectively. All the rails extend in the full length direction of the horizontal warehouse, the tops of the rails are higher than the ground of the horizontal warehouse, and discharging augers for conveying materials to the central pit are installed on the front side and the rear side of the rack correspondingly; a plurality of groups of steel wire ropes extending forwards and backwards are fixed at the bottom of the rack, each steel wire rope is respectively wound on a rope drum of a corresponding winch through a bend wheel, and each group of winch is respectively fixed at two ends of the horizontal warehouse in the length direction. According to the device, fault points are few, a non-standard autonomous walking mechanism is omitted, the construction cost and the maintenance cost are greatly reduced, and the convenience and safety of overhauling are improved.

Description

Technical Field

[0001] This utility model relates to a material discharge mechanism for flat warehouses, and more particularly to a traction-type flat warehouse discharge device, belonging to the technical field of bulk material discharge equipment. Background Technology

[0002] The storage yards of flat warehouses are rectangular, typically 30-40 meters wide, and tend to be even wider, sometimes reaching depths of over 200 meters. A dedicated unloading machine is required for unloading. This machine extends across the entire width and depth of the warehouse; a pit extending along the entire depth is located in the center of the warehouse's width. As the unloading machine moves forward, it transports material across the width towards the central pit, where a scraper conveyor transports the material outside the warehouse.

[0003] Traditional pit construction requires a large civil engineering retaining structure to accommodate the front-end traveling mechanism of the silo unloading machine. The top of this retaining structure is often connected to a central partition wall via a long sloping surface. This results in long construction periods, high costs, and further reduces the effective storage space.

[0004] Chinese utility model patent CN 214567948U discloses a discharge gate device, including symmetrically openable and closable flaps. The tops of the two flaps are symmetrically hinged to both sides of a flap top beam. A connecting rod is hinged to the middle of the back of the two flaps, and the lower end of the connecting rod is hinged to a connecting rod hinge seat. An electric push rod is hinged to the bottom of the flap top beam, and the bottom of the electric push rod is fixed to an electric push rod support. The electric push rod support and the connecting rod hinge seat are respectively fixed to the bottom beam of the discharge gate. X-guide wheels are provided at the front and rear ends of the flap top beam, and Y-guide wheels are provided on the upper and lower sides of the X-guide wheels. The X-guide wheels and Y-guide wheels are embedded in the vertical support beam groove of the discharge gate column. A canopy bracket is installed on the top of the discharge gate column, and a canopy is fixed on the top of the canopy bracket. The canopy is symmetrically arranged in a V-shape, covering the top of the two flaps.

[0005] This technical solution avoids the need for a building envelope, allowing for normal material stacking on top, expanding the storage space, and facilitating gravity-flow material discharge. However, many components are prone to failure and are buried beneath the material pile, necessitating the construction of a deep pit to facilitate power supply and personnel access for maintenance. Utility Model Content

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0007] In view of the problems existing in the above and / or prior art, this utility model is proposed.

[0008] The purpose of this utility model is to overcome the problems existing in the prior art and provide a traction-type flat warehouse unloading device with fewer failure points, eliminating the need for a non-standard autonomous walking mechanism, greatly reducing construction and maintenance costs, and improving the convenience and safety of maintenance.

[0009] To solve the above technical problems, this utility model provides a traction-type flat warehouse discharge device, comprising a frame extending along the full width of the flat warehouse. At least two pairs of traveling wheels are symmetrically arranged at the bottom of the frame. Each traveling wheel is symmetrically distributed around the axis of the width of the flat warehouse and supported on a corresponding track. Each track extends along the full length of the flat warehouse, and the top of the track is higher than the ground of the flat warehouse. Discharge augers for conveying material to the central pit are installed on the front and rear sides of the frame, respectively. Multiple sets of steel wire ropes extending forward and backward are fixed at the bottom of the frame. Each steel wire rope is wound on the drum of a corresponding winch through a deflector. Each set of winches is fixed at both ends along the length of the flat warehouse.

[0010] Furthermore, the bottom of the frame is provided with traction fixing blocks on the front and rear sides respectively. A steel wire rope extending forward is fixed on the traction fixing block on the front side, and a steel wire rope extending backward is fixed on the traction fixing block on the rear side.

[0011] Furthermore, the flat warehouse floor has multiple shallow grooves extending along its entire length, with adjacent tracks and wire ropes located in the same shallow groove.

[0012] Furthermore, half of the upper end of the shallow trough is exposed, and the other half is covered with a trough opening cover. The track is located on the exposed side of the shallow trough, and the wire rope is located below the trough opening cover.

[0013] Furthermore, an angle steel is pre-embedded along the edge of the shallow trough near the wire rope. The vertical edge of the angle steel is embedded in the ground concrete, and the horizontal edge of the angle steel extends towards the center of the upper end of the shallow trough to form the trough opening cover.

[0014] Furthermore, a scraper conveyor is installed at the bottom of the central pit, and multiple unloading machines are installed at the upper port of the central pit. Each unloading machine includes a door frame covering the upper port of the pit. The two long sides of the door frame are connected by a middle frame, and the two short sides of the door frame are respectively hinged to unloading doors by door hinges. The free ends of the two unloading doors extend downwards towards the middle frame. Vertical supports extending downwards are fixed to the middle of the two short sides of the door frame, and unloading cylinders are respectively hinged to the lower ends of the vertical supports. The free ends of the piston rods of the two unloading cylinders are respectively hinged to the middle of the back of the corresponding unloading door.

[0015] The free ends of the two unloading gates are symmetrically connected to a pair of unloading gate support rods extending to the bottom of the middle frame, and each unloading gate support rod is supported by a locking pin at its bottom.

[0016] Furthermore, the middle of the frame is hollowed out and the top is covered with a middle frame maintenance panel. A locking pin bracket is provided below the middle frame maintenance panel. The locking pin bracket includes two parallel U-shaped brackets. Each locking pin is fixed to the end of the U-shaped bracket. The axes of each locking pin are parallel to each other and extend along the width direction of the unloading gate. The two U-shaped brackets are connected as a whole by a transverse bracket.

[0017] Furthermore, a vertically extending lug is provided in the middle of one side of the U-shaped bracket, and a locking pin drive cylinder is hinged to the middle frame. The free end of the piston rod of the locking pin drive cylinder is hinged to the upper end of the vertical lug.

[0018] Furthermore, the free ends of each locking pin are respectively inserted into the guide holes of the corresponding locking pin guide seats, and the upper ends of the locking pin guide seats on the same side are respectively fixed to the transverse connecting rods, and the two ends of the transverse connecting rods are respectively fixed to the door frame.

[0019] Compared with the prior art, the present invention has achieved the following beneficial effects: 1. Several steel wire ropes are buried along the depth direction on the ground of the flat warehouse. The winch winds up the steel wire ropes and drives the warehouse exit machine to move forward along the guide rail. At the same time, the front auger transports the material in the width direction to the central pit and sends it out by the buried scraper conveyor.

[0020] 2. The winch is a general-purpose device with good interchangeability, low procurement cost, long service life, low failure rate and low maintenance cost; the use of winch traction eliminates the expensive and non-standard self-propelled mechanism, which greatly reduces the total cost of the device, greatly reduces the failure rate, and makes maintenance quick and convenient.

[0021] 3. The complex movable unloading gate, electric push rod, sliding contact line, rollers and other vulnerable parts and fixed structures above the pit have been eliminated, greatly reducing the pit height. This eliminates the need for maintenance passages in the pit and the pit cover does not require maintenance. In addition, the pit cover can be removed by lifting the belt to maintain the buried scraper conveyor without having to travel long distances through the enclosed pit, improving maintenance safety. The pit top has a flat structure, increasing the effective storage space. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The drawings are provided for reference and illustration only and are not intended to limit this utility model. Wherein:

[0023] Figure 1 This is a front view of the traction-type flat warehouse unloading device of this utility model, with the front auger concealed.

[0024] Figure 2 for Figure 1 Top view;

[0025] Figure 3 for Figure 1 A three-dimensional image;

[0026] Figure 4 This is a longitudinal cross-sectional view of the traction-type flat warehouse unloading device of this utility model;

[0027] Figure 5 This is a cross-sectional view of the traction-type flat warehouse unloading device of this utility model;

[0028] Figure 6 This is a front view of the unloading machine in this utility model with one side door frame removed;

[0029] Figure 7 The three-dimensional unloading machine in this utility model Figure 1 ;

[0030] Figure 8 for Figure 6 3D Figure 2 ;

[0031] Figure 9 for Figure 6 3D Figure 3 ;

[0032] Figure 10 A 3D view of the door opening drive mechanism in the unloading machine;

[0033] In the diagram: Unloading machine: 1. Door frame; 1a. Vertical support; 1b. Door frame inspection panel; 1c. Door side baffle; 2. Middle frame; 2a. Middle frame sealing stop; 2b. Middle frame inspection panel; 3. Unloading door; 3a. Door hinge; 3b. Unloading door support rod; 3c. Unloading door sealing flange; 4. Unloading cylinder; 5. Locking pin drive cylinder; 5a. Cylinder support lug; 6. Locking pin support; 6a. U-shaped support; 6b. Horizontal support; 6c. Vertical support lug; 7. Locking pin; 8. Locking pin guide seat; 9. Horizontal connecting rod; 10. Valve body assembly;

[0034] 11. Frame; 12. Wheels; 13. Discharge auger; 14. Traction fixing block; 15. Winch; 16. Idler wheel; 17. Wire rope; 18. Track; 19. Groove cover; 20. Submerged scraper conveyor. Detailed Implementation

[0035] 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.

[0036] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0037] 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.

[0038] like Figures 1 to 5 As shown, the traction-type flat warehouse discharge device of this utility model includes a frame 11 extending along the full width of the flat warehouse. At least two pairs of wheels 12 are symmetrically arranged at the bottom of the frame 11. Each wheel 12 is symmetrically distributed around the axis of the flat warehouse's width and supported on a corresponding track 18. Each track 18 extends along the full length of the flat warehouse, and its top is higher than the ground level of the flat warehouse. Discharge augers 13 are installed on the front and rear sides of the frame 11, respectively, and each discharge auger 13 conveys material in the width direction into a central pit. A scraper conveyor 20 is installed at the bottom of the central pit, and multiple unloading machines are installed at the upper end of the central pit.

[0039] The frame 11 has traction fixing blocks 14 on its front and rear sides at the bottom. A forward-extending steel wire rope 17 is fixed on the front traction fixing block 14, and a rearward-extending steel wire rope 17 is fixed on the rear traction fixing block 14. Each steel wire rope 17 is wound onto the drum of the corresponding winch 15 via a deflector 16. Each set of winches 15 is fixed at both ends along the length of the flat warehouse.

[0040] The flat warehouse floor has multiple shallow grooves extending along its entire length, with adjacent tracks 18 and wire ropes 17 located in the same shallow groove.

[0041] The upper half of the shallow trough is exposed, and the track 18 is located on the exposed side of the shallow trough; the other half of the upper end of the shallow trough is provided with a trough cover 19, and the wire rope 17 is located below the trough cover 19.

[0042] An angle steel is pre-embedded on the edge of the shallow trough near the steel wire rope 17. The vertical edge of the angle steel is embedded in the ground concrete, and the horizontal edge of the angle steel extends towards the center of the upper end of the shallow trough to form the trough opening cover 19.

[0043] Figure 2 and Figure 3 For ease of description, the front and rear winches, which are more than 200 meters apart, are moved to both sides of the discharge machine. The rear winch 15 releases the wire rope 17, and the front winch 15 winds up the wire rope 17, driving the discharge machine forward along the guide rail. At the same time, the front discharge auger 13 conveys the material in the width direction to the central pit. The corresponding unloading machine opens, and the material falls into the buried scraper conveyor 20 and is discharged.

[0044] like Figures 6 to 10 As shown, the unloading machine includes a door frame 1, an unloading door 3, an unloading cylinder 4, a locking pin 7, and a locking pin drive cylinder 5. The door frame 1 covers the upper end of the pit, with its short sides supported on the stops on both sides of the pit, and its long sides spanning between the stops on both sides of the pit. The two long sides of the door frame 1 are connected in the middle by a middle frame 2. The two short sides of the door frame 1 are respectively hinged to the unloading door 3 via door hinges 3a. The door hinges 3a have two coaxial shafts, which are respectively hinged to both sides of the unloading door 3 in the width direction. The top of the short sides of the door frame 1, corresponding to the door hinges 3a, are respectively provided with inspection windows and covered by door frame inspection panels 1b. Opening the door frame inspection panels 1b facilitates the removal and replacement of the door hinges 3a from the top.

[0045] The free ends of the two unloading gates 3 extend downwards towards the middle frame 2, with the top surface of the unloading gate 3 forming an angle of 14° to 18° with the horizontal plane. This allows for a larger opening angle when the unloading gate 3 is opened, typically reaching 58° to 60°, resulting in smoother and faster unloading. Side baffles 1c are provided on both sides of the unloading gate 3, covering the gaps on both sides to prevent material leakage.

[0046] Vertical supports 1a extending downwards are fixed to the middle of the two short sides of the door frame 1. The lower ends of the cylinder bodies of the unloading cylinders 4 are hinged to the lower ends of the vertical supports 1a, and the free ends of the piston rods of the two unloading cylinders 4 are hinged to the middle of the back of the corresponding unloading door 3. Valve assemblies 10 are fixed on the two vertical supports 1a, and the unloading cylinders 4 are made to perform the required actions by controlling the air circuit.

[0047] The free ends of the two unloading gates 3 are symmetrically connected to a pair of unloading gate support rods 3b extending to the bottom of the middle frame 2, and the bottom of each unloading gate support rod 3b is supported by a locking pin 7.

[0048] The middle frame 2 is hollowed out in the middle and covered with a middle frame inspection panel 2b on the top. By opening the middle frame inspection panel 2b, the locking pin drive mechanism below can be inspected, thus avoiding the need to set up an inspection channel in the pit, reducing the pit depth and reducing infrastructure investment.

[0049] Below the middle frame inspection panel 2b, there is a locking pin bracket 6. The locking pin bracket 6 includes two parallel U-shaped brackets 6a. Each locking pin 7 is fixed to the end of the U-shaped bracket 6a. The axes of each locking pin are parallel to each other and extend along the width direction of the unloading gate 3. The two U-shaped brackets 6a are connected as a whole by a transverse bracket 6b.

[0050] A vertical support lug 6c extending upwards is provided in the middle of the U-shaped bracket 6a on one side. A horizontal plate extending along the width direction of the middle frame is welded to one end of the middle frame 2. A cylinder support lug 5a is fixedly connected to the lower part of the middle horizontal plate. The cylinder body of the locking pin drive cylinder 5 is hinged to the lower end of the cylinder support lug 5a. The piston rod of the locking pin drive cylinder 5 extends along the horizontal line in the width direction of the door frame, and the free end of the piston rod is hinged to the upper end of the vertical support lug 6c.

[0051] The free ends of each locking pin 7 are respectively inserted into the guide holes of the corresponding locking pin guide seats 8. The upper ends of the locking pin guide seats 8 on the same side are respectively fixed to the transverse connecting rods 9, and the two ends of the transverse connecting rods 9 are respectively fixed to the door frame 1.

[0052] Both sides of the top of the middle frame 2 are chamfered, which guides the material inward into the door, increases the opening size at the top, and reduces the material accumulation area at the top of the middle frame. The bottom of both sides of the middle frame 2 are respectively provided with middle frame sealing stops 2a; the free end of the unloading door 3 is respectively provided with unloading door sealing folds 3c, which cover the unloading door support rod 3b and extend horizontally to the bottom of the middle frame sealing stops 2a.

[0053] The locking pins on both sides drive the cylinders 5 and the unloading cylinder 4 to operate synchronously, that is, the two unloading gates 3 close and open synchronously. The figure shows the open and closed states respectively.

[0054] During unloading, as required by the material level or unloading point, the piston rod of the locking pin drive cylinder 5 is extended by the valve body assembly 10, and the entire locking pin bracket 6 is driven to move forward through the vertical support lug 6c. The four locking pins 7 located at the end of the U-shaped bracket 6a retract into the locking pin guide seat 8, that is, they are withdrawn from the bottom of the corresponding unloading gate support rod 3b. Then the piston rod of the unloading cylinder 4 retracts, and the unloading gate 3 rotates downward around the door hinge 3a to open, and unloading begins.

[0055] After unloading is completed, when the piston rod of the unloading cylinder 4 extends, the unloading gate 3 rotates upward around the door hinge 3a and closes. The unloading gate support rod 3b abuts against the lower part of the middle frame 2, and the unloading gate sealing edge 3c reaches the lower part of the middle frame sealing stop 2a, forming a horizontal section of seam to achieve natural material sealing. Then, the piston rod of the locking pin drive cylinder 5 retracts, driving the entire locking pin bracket 6 to move in the opposite direction through the vertical support lug 6c. The four locking pins 7 located at the end of the U-shaped bracket 6a extend synchronously from the locking pin guide seat 8 and are inserted horizontally into the lower part of the corresponding unloading gate support rod 3b, abutting against the unloading gate support rod 3b and bearing the material load on the unloading gate 3 after the material is laid in the warehouse.

[0056] 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 traction-type flat warehouse unloading device, comprising a frame extending along the full width of the flat warehouse, characterized in that, The bottom of the frame is symmetrically provided with at least two pairs of traveling wheels. Each traveling wheel is symmetrically distributed around the axis of the width of the flat warehouse and is supported on a corresponding track. Each track extends along the entire length of the flat warehouse and the top of the track is higher than the ground of the flat warehouse. The front and rear sides of the frame are respectively equipped with discharge augers for conveying material to the central pit. The bottom of the frame is fixed with multiple sets of steel wire ropes extending forward and backward. Each steel wire rope is wound on the rope drum of a corresponding winch through a deflector. Each set of winches is fixed at both ends of the length of the flat warehouse.

2. The traction-type flat warehouse unloading device according to claim 1, characterized in that: The bottom of the frame is provided with traction fixing blocks on the front and rear sides respectively. A steel wire rope extending forward is fixed on the traction fixing block on the front side, and a steel wire rope extending backward is fixed on the traction fixing block on the rear side.

3. The traction-type flat warehouse unloading device according to claim 1, characterized in that: The flat warehouse floor has multiple shallow grooves extending along its entire length, with adjacent tracks and wire ropes located in the same shallow groove.

4. The traction-type flat warehouse unloading device according to claim 3, characterized in that: The upper half of the shallow trough is exposed, and the other half is covered with a trough opening. The track is located on the exposed side of the shallow trough, and the wire rope is located below the trough opening cover.

5. The traction-type flat warehouse unloading device according to claim 4, characterized in that: An angle steel is pre-embedded along the edge of the shallow trough near the wire rope. The vertical edge of the angle steel is embedded in the ground concrete, and the horizontal edge of the angle steel extends towards the center of the upper end of the shallow trough to form the trough opening cover.

6. The traction-type flat warehouse unloading device according to any one of claims 1 to 5, characterized in that: A scraper conveyor is installed at the bottom of the central pit, and multiple unloading machines are installed at the upper end of the central pit. Each unloading machine includes a door frame covering the upper end of the pit. The two long sides of the door frame are connected by a middle frame, and the two short sides of the door frame are respectively hinged to unloading doors by door hinges. The free ends of the two unloading doors extend downwards towards the middle frame. Vertical supports extending downwards are fixed to the middle of the two short sides of the door frame, and unloading cylinders are respectively hinged to the lower ends of the vertical supports. The free ends of the piston rods of the two unloading cylinders are respectively hinged to the middle of the back of the corresponding unloading door. The free ends of the two unloading gates are symmetrically connected to a pair of unloading gate support rods extending to the bottom of the middle frame, and each unloading gate support rod is supported by a locking pin at its bottom.

7. The traction-type flat warehouse unloading device according to claim 6, characterized in that: The middle frame is hollowed out and covered with a middle frame maintenance panel on top. A locking pin bracket is provided below the middle frame maintenance panel. The locking pin bracket includes two parallel U-shaped brackets. Each locking pin is fixed to the end of the U-shaped bracket. The axes of each locking pin are parallel to each other and extend along the width direction of the unloading gate. The two U-shaped brackets are connected as a whole by a transverse bracket.

8. The traction-type flat warehouse unloading device according to claim 7, characterized in that: A vertical support extending upward is provided in the middle of one side of the U-shaped bracket. A locking pin drive cylinder is hinged to the middle frame. The free end of the piston rod of the locking pin drive cylinder is hinged to the upper end of the vertical support.

9. The traction-type flat warehouse unloading device according to claim 7, characterized in that: The free ends of each locking pin are inserted into the guide holes of the corresponding locking pin guide seats. The upper ends of the locking pin guide seats on the same side are fixed to the transverse connecting rods, and the two ends of the transverse connecting rods are fixed to the door frame.

Images