Storehouse unloading machine

Abstract

The utility model discloses a warehouse unloading machine which comprises a door frame covering an upper end opening of a pit, the middle portions of two long edges of the door frame are connected through a middle frame, two short edges of the door frame are respectively hinged with an unloading door through door shafts, and the free ends of the two unloading doors respectively extend out towards the lower portion of the middle frame in an inclined mode. Vertical supports extending downwards are fixed to the middles of the two short edges of the door frame respectively, discharging air cylinders are hinged to the lower ends of the vertical supports respectively, and the free ends of piston rods of the two discharging air cylinders are hinged to the middles of the back faces of the corresponding discharging doors respectively. The free ends of the two discharging doors are symmetrically connected with a pair of discharging door supporting rods extending to the position below the middle frame, and lock pins are supported at the bottoms of the discharging door supporting rods respectively. The warehouse unloading machine is few in fault points and reliable in action, the construction cost is greatly reduced, and the convenience and safety of overhaul are improved.

Description

Technical Field

[0001] This utility model relates to a warehouse unloading machine, belonging to the technical field of bulk material unloading equipment. Background Technology

[0002] The storage yards of the flat-roofed warehouses are rectangular, with a width often reaching 30-40 meters, and there is a trend towards wider yards. The depth can sometimes exceed 200 meters. Unloading requires specialized unloading machines, which are arranged along the depth of a pit located in the center of the warehouse. When the unloading machine gates open, the material, positioned at the top width, falls into the pit. A scraper conveyor then transports the material outside the warehouse.

[0003] 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.

[0004] Although the above technical solutions can be set up on the pit of the flat warehouse to avoid the building's civil engineering enclosure structure, the main body is located above the ground, the structure is more complex, and there are more potential failure points. Utility Model Content

[0005] 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, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the above and / or prior art, this utility model is proposed.

[0007] The purpose of this utility model is to overcome the problems existing in the prior art and provide a warehouse unloading machine with fewer failure points, reliable operation, and significantly reduced construction costs, while improving the convenience and safety of maintenance.

[0008] To solve the above technical problems, this utility model provides a warehouse unloading machine, including a door frame covering the upper end of the pit. The two long sides of the door frame are connected by a middle frame. 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. The two short sides of the door frame are respectively fixed with downwardly extending vertical supports. The lower ends of the vertical supports are respectively hinged to unloading cylinders. 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.

[0009] 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.

[0010] As an improvement of this utility model, the middle frame is hollowed out in the middle and covered with a middle frame maintenance panel on the 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.

[0011] As a further improvement of this utility model, a vertically extending lug is provided in the middle of the U-shaped bracket on one side, 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.

[0012] As a further improvement of this utility model, 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.

[0013] As a further improvement of this utility model, the top of both sides of the middle frame is provided with chamfers, and the bottom of both sides of the middle frame is provided with middle frame sealing stops; the free end of the unloading door is provided with unloading door sealing folds, and the unloading door sealing folds cover the top of the unloading door support rod and extend horizontally to the bottom of the middle frame sealing stops.

[0014] As a further improvement of this utility model, the door hinge has two coaxial shafts, which are respectively hinged to both sides of the unloading door width direction. The top of the short side of the door frame and the part corresponding to the door hinge are respectively provided with inspection windows and covered with door frame inspection panels.

[0015] As a further improvement of this utility model, the angle between the top surface of the unloading gate and the horizontal plane is 14° to 18°.

[0016] Compared with the prior art, the present invention has achieved the following beneficial effects: 1. The door frame of the warehouse unloading machine is supported on the pit stop, and the top is flush with the ground of the warehouse, so as to achieve no obstacles above the warehouse and increase the storage space of the warehouse; the unloading door is opened and closed by the unloading cylinder. When the unloading door is opened downward, the material above naturally flows into the pit and is sent out by the buried scraper conveyor; after the unloading door is closed, the locking pin drive cylinder drives each locking pin to extend and support under the unloading door support rod. When the unloading cylinder is not working, the unloading door is in a reliable closed state.

[0017] 2. The top surface of the unloading gate is inclined downwards. When the unloading cylinder opens the unloading gate, the angle between the unloading gate and the horizontal plane can reach nearly 60°, making unloading faster and smoother; the unloading gate can achieve natural sealing to prevent material leakage.

[0018] 3. After removing the inspection panel, the door hinge and lock pin drive mechanism can be repaired or replaced from above, making maintenance more convenient. Attached Figure Description

[0019] 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:

[0020] Figure 1 This is the front view of the warehouse unloading machine of this utility model with one side door frame hidden;

[0021] Figure 2 The three-dimensional unloading machine for warehouses of this utility model Figure 1 ;

[0022] Figure 3 for Figure 1 3D Figure 2 ;

[0023] Figure 4 for Figure 1 3D Figure 3 ;

[0024] Figure 5 This is a perspective view of the door opening drive mechanism in this utility model;

[0025] In the diagram: 1. Door frame; 1a. Vertical support; 1b. Door frame inspection panel; 1c. Door side baffle;

[0026] 2. Middle frame; 2a. Middle frame sealing stop; 2b. Middle frame inspection panel;

[0027] 3. Unloading gate; 3a. Gate hinge; 3b. Unloading gate support rod; 3c. Unloading gate sealing fold;

[0028] 4. Unloading cylinder; 5. Locking pin driven cylinder; 5a. Cylinder support lug;

[0029] 6. Locking pin bracket; 6a. U-shaped bracket; 6b. Horizontal bracket; 6c. Vertical support lug;

[0030] 7. Locking pin; 8. Locking pin guide seat; 9. Lateral connecting rod; 10. Valve body assembly. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] like Figures 1 to 5 As shown, the warehouse unloading machine of this utility model 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 by 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 side of the door frame 1, corresponding to the door hinges 3a, is provided with an inspection window and covered by a door frame inspection panel 1b. Opening the door frame inspection panel 1b makes it easy to pull out the door hinges 3a from the top and replace them.

[0035] 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.

[0036] 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.

[0037] 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 each unloading gate support rod 3b is supported by a locking pin 7 at its bottom.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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 warehouse unloading machine, comprising a door frame covering the upper end of a pit, characterized in that: 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. The two short sides of the door frame are respectively fixed with downwardly extending vertical supports. The lower ends of the vertical supports are respectively hinged to unloading cylinders. 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.

2. The warehouse unloading machine according to claim 1, 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.

3. The warehouse unloading machine according to claim 2, 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.

4. The warehouse unloading machine according to claim 2, 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.

5. The warehouse unloading machine according to claim 1, characterized in that: Both sides of the top of the middle frame are chamfered, and both sides of the bottom of the middle frame are respectively provided with middle frame sealing stops; the free end of the unloading door is respectively provided with unloading door sealing folds, which cover the top of the unloading door support rod and extend horizontally to the bottom of the middle frame sealing stops.

6. The warehouse unloading machine according to claim 1, characterized in that: The door hinge has two coaxial hinges, which are respectively hinged to both sides of the unloading door in the width direction. The top of the short side of the door frame and the part corresponding to the door hinge are respectively provided with inspection windows and covered with door frame inspection panels.

7. The warehouse unloading machine according to any one of claims 1 to 6, characterized in that: The angle between the top surface of the unloading gate and the horizontal plane is 14° to 18°.

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