A large volume hopper with automatic discharge without human cooperation

Abstract

A large-volume hopper with automatic unloading capability is disclosed. The hopper body has reinforcing ribs welded to both sides. The four corners of the bottom of the hopper body are hinged to double-leaf doors. Each half of the double-leaf door has two lifting rings located on its open ends, outside the hopper body. Two pulleys A are symmetrically positioned on the two sides of the reinforcing ribs outside the hopper body, and one pulley B is located at each of the four corners of the top of the hopper body. Steel wire A is divided into strips, one end of which is connected to the four corner lugs of a lifting device, and the other end passes through A and connects to the lifting rings of pulley B. Steel wire B is connected to the upper end of the lifting device. When the hopper slides to the same width as the V-shaped unloading frame, the hopper body stops falling, the lifting steel wire rope is no longer under tension, the bottom door of the hopper automatically opens, and the hopper unloads material. This hopper achieves automatic unloading without the need for dedicated personnel. After the hopper is lifted to the designated unloading location, it can automatically complete unloading in a short time, resulting in high construction efficiency, safety, and reliability, making it particularly suitable for long-distance material lifting operations.

Description

Technical Field

[0001] This invention belongs to the field of engineering construction technology, specifically relating to a large-volume hopper that automatically unloads materials without human intervention. Background Technology

[0002] Existing methods for constructing hoppers for hoisting granular materials include: ① Using a rectangular, open-top hopper, the hopper is connected to a lifting device via steel wire ropes attached to the four corners of its top. After the hopper is hoisted to the designated location, the four steel wire ropes at the top of the hopper are manually loosened, and two of these ropes are tied to two adjacent lifting points at the bottom of the hopper. The lifting device is then activated, and the hopper is tilted under its lifting force to unload the material. After the material is unloaded, the four hoisting steel wire ropes are manually tied back to the four corners of the top of the hopper. ② Using a hopper with an openable bottom door, the bottom door is fixed to the hopper body via a pivot. The hopper's lifting steel wire ropes are attached to the four corners of the top of the hopper and connected to the hooks of the lifting device. After the hopper is hoisted to the designated location, the pin on the bottom material gate is manually removed, and the lifting equipment is started. The hopper moves upward under the lifting equipment, and the bottom material gate automatically opens around the pivot under its own weight, allowing the material inside the hopper to be unloaded. After the material inside the hopper is unloaded, the hopper is lowered to the ground, and the material gate pin is manually inserted to close the material gate.

[0003] The existing conventional hoppers have the following main problems: ① The lifting equipment used for lifting large-volume hoppers is large, resulting in slow operating speeds and long material hoisting times. Taking the operation of the cable crane on the Zhongjianhe Grand Bridge as an example, if conventional hoppers are used, someone needs to be on duty at the unloading point at all times to assist with unloading. These personnel have no other work to do outside of unloading. ② Using these conventional hoppers requires manual assistance to complete unloading. Whether it's reversing the lifting wire rope or manually inserting and removing pins, it takes a long time, leading to a significant decrease in construction efficiency. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a large-volume hopper that automatically unloads materials without human intervention, and a large-tonnage automatic unloading hopper with high construction efficiency.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A large-volume hopper for automatic unloading without human intervention includes a hopper box (1), characterized in that hopper reinforcing ribs (2) are welded to both sides of the hopper box (1), and the bottom four corners of the hopper box (1) are connected to the double-opening material gate (4) by hinges (3). Each of the left and right opening ends of the double-opening material gate (4) is provided with two lifting rings (5), and the lifting rings (5) are located outside the hopper box (1). The hopper reinforcing ribs (2) are symmetrically provided with two pulleys A (6) on both sides outside the hopper box (1), and each of the four corners of the top of the hopper box (1) is provided with a pulley B (7). The steel wire A (8) is divided into strips, one end of each strip is connected to the four corner lifting lugs of the lifting device (9), and the other end passes through A (6) and connects to the lifting ring (5) with the pulley B (7). The upper end of the lifting device (9) is connected to the steel wire B (10).

[0006] The bottom of the hopper box (1) is welded with rotatable hinges (3) at each of the four corners. The two opposite hinges (3) are connected to half of the double doors (4), so that the two double doors can rotate along the rotation axis.

[0007] The beneficial effects of this invention are: This invention enables an automatic unloading hopper that requires no dedicated personnel to operate or coordinate. After the hopper is hoisted to the designated unloading location, it can automatically complete the unloading process in a short time, resulting in high construction efficiency, safety, and reliability. It is also more suitable for long-distance material hoisting construction. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of the present invention.

[0009] Figure 2 This is a schematic diagram illustrating an embodiment of the present invention.

[0010] Among them, 1 is the hopper box, 2 is the hopper reinforcing rib, 3 is the hinge, 4 is the double-opening material door, 5 is the lifting ring, 6 is pulley A, 7 is pulley B, 8 is steel wire A, 9 is the lifting device, and 10 is steel wire B. Detailed Implementation

[0011] The invention will be further described below with reference to the accompanying drawings.

[0012] like Figure 1As shown, a large-volume hopper for automatic unloading without human intervention includes a hopper box (1). The hopper box (1) is characterized by having hopper reinforcing ribs (2) welded to both sides. The bottom corners of the hopper box (1) are connected to the split door (4) via hinges (3). Each of the left and right openings of the split door (4) is provided with two lifting rings (5). The lifting rings (5) are located outside the hopper box (1). The hopper reinforcing ribs (2) are symmetrically provided with two pulleys A (6) on both sides outside the hopper box (1). Each of the four corners of the top of the hopper box (1) is provided with a pulley B (7). The steel wire A (8) is divided into strips. One end of each strip is connected to the four corner lugs of the lifting device (9), and the other end passes through A (6) and connects to the lifting ring (5) via the pulley B (7). The upper end of the lifting device (9) is connected to the steel wire B (10).

[0013] The bottom of the hopper box (1) is welded with rotatable hinges (3) at each of the four corners. The two opposite hinges (3) are connected to half of the double doors (4), so that the two double doors can rotate along the rotation axis.

[0014] like Figure 2 As shown, the construction principle is as follows: The self-unloading hopper consists of a rectangular hopper with an openable bottom, an unloading bracket, a lifting wire rope, and a steering pulley. Both the self-unloading hopper and the unloading bracket are made of shaped steel and steel plates, and the two are matched in size.

[0015] The unloading bracket mainly serves to guide and support the hopper. When the hopper is hoisted to the unloading position, the camera on the crane hook aligns the hopper with the unloading bracket, and the hopper is lowered onto it for unloading. After unloading, the crane is started to lift the hopper, and the bottom gate automatically closes as the hopper is lifted.

[0016] Based on the lifting capacity of the lifting equipment, a rectangular hopper with an open bottom and an open top is designed. The bottom of the hopper adopts a double-door openable structure, and the door is connected to the hopper via a pivot shaft to achieve the opening method. The hopper lifting wire rope passes around the four corner steering pulleys and the side wall steering pulleys of the hopper and connects to the bottom door, enabling the door to close during the lifting process.

[0017] A discharge frame is designed according to the size of the hopper. The discharge frame consists of two parts: a V-shaped guide frame at the top and a steel support frame at the bottom. The bottom steel support frame is made of spiral pipe and structural steel, and mainly serves to support the top V-shaped guide frame and the hopper. The top of each side of the V-shaped guide frame should be at least 0.8m wider than the hopper at its widest point, and the bottom of the V-shape should be at least 1.0m wider than the hopper. The sloping sides of the V-shaped support frame are made of thickened steel plates and structural steel back ribs to guide the hopper.

[0018] After the lifting equipment raises the hopper to the unloading point, it uses a camera on the hook to align the hopper with the V-shaped guide frame. Guided by the slope of the V-shaped guide frame, the hopper slides down the slope under its own weight. When it slides to the same width as the V-shaped unloading frame, the hopper stops falling, the lifting wire rope is no longer under tension, the bottom gate of the hopper opens automatically, and the hopper unloads. After unloading, the crane starts lifting, and the bottom gate of the hopper is pulled tight and closed under the tension of the lifting wire rope.

[0019] This cycle repeats, allowing the bottom gate of the self-unloading hopper to open and close automatically under its own weight, thus creating a hopper capable of automatic unloading.

Claims

1. A large volume hopper for automatic discharge without human intervention, comprising a hopper casing (1), characterized in that, Hopper box (1) both sides of the welded hopper reinforcement (2), the bottom of the hopper box (1) four corners through the hinge (3) connection to open the door (4), both sides of the opening of the two halves of the open door (4) are provided with two lifting lugs (5), lifting lugs (5) are located outside the hopper box (1); hopper reinforcement (2) is located outside the hopper box (1) both sides of the two symmetrically provided with two pulleys A (6), located at the top of the hopper box (1) four corners are provided with one pulley B (7), steel wire A (8) strip, one end of each connection lifting appliance (9) four corners lug, the other end through A (6) and pulley B (7) connection lifting lugs (5); lifting appliance (9) upper end connection steel wire B (10).

2. A large volume hopper for automatic discharge without human intervention according to claim 1, characterized in that, The bottom of the hopper box (1) four corners are welded rotatable hinge (3), the opposite two hinges (3) connection to open the door (4) half, so that two pairs of doors can be rotated along the rotation axis.

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