Novel hopper wind-shield wall of grab ship unloader

Abstract

The utility model discloses a novel grab ship unloader hopper wind-shield wall which comprises two side wall fixed wind-shield walls, a land side movable wind-shield wall is arranged on the land side between the two side wall fixed wind-shield walls, and the land side movable wind-shield wall comprises a wind-shield wall upper portion and a wind-shield wall lower portion which are hinged to each other. A wind-shield wall upper portion pitching oil cylinder or a pitching electric push rod is arranged between the wind-shield wall upper portion and the wind-shield wall lower portion, a driving device capable of enabling the wind-shield wall lower portion to ascend and descend is further arranged on the wind-shield wall lower portion, and the driving device comprises a driving winch, a sliding mechanism, a pulley block and a steel wire rope. The sliding mechanism comprises guide supports installed on the two sides of the lower portion of the wind-shield wall, and the two sides of the lower portion of the wind-shield wall are both installed on the guide supports in a sliding mode. The driving winch is mounted on one side of the guide bracket fixed pulley; one end of the steel wire rope is fixed on the driving winch, and the other end sequentially bypasses the guide bracket fixed pulley and the lower wind-shield wall pulley and is finally fixed on the steel wire rope fixing wedge sleeve. The device is low in cost and high in efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of machinery, specifically relating to a novel arrangement of the landside windbreak wall of the large hopper in the unloading system of a bridge grab unloader at a bulk cargo terminal. Background Technology

[0002] Conventional bridge-type grab unloaders typically have a hopper with a tiltable receiving plate on the sea side, two fixed windbreak walls on the side walls, and a movable windbreak wall on the land side. This patent focuses on innovative modifications to the land-side windbreak wall. Conventional land-side windbreak walls can be arranged in two ways: vertically movable or horizontally open.

[0003] The main function of the landside windbreak is to prevent dust from overflowing. During the unloading process, it needs to form a three-sided enclosure with the two side walls. However, since the grab bucket moves very fast along with the trolley when moving from the sea side to the hopper, there is a risk of the bucket hitting the landside windbreak. Both the vertical moving arrangement and the horizontal opening arrangement have drawbacks: 1. The vertical moving arrangement can lower the grab bucket to a certain height to avoid hitting it, but it affects dust control; 2. The horizontal opening arrangement cannot be opened during unloading to prevent dust, which poses a risk of the grab bucket hitting it. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a new type of grab bucket unloader hopper windbreak wall, which can be widely used in bridge grab bucket unloaders. On the one hand, it blocks dust during operation, and on the other hand, it can prevent the grab buckets that follow the trolley at high speed from hitting the windbreak wall.

[0005] The objective of this utility model is achieved in the following manner:

[0006] A novel grab bucket ship unloader's hopper windbreak wall includes two fixed side walls and a movable landside windbreak wall between them. The movable landside windbreak wall comprises an upper part A1 and a lower part A4 hinged together. A pitch cylinder A3 or a pitch electric push rod is installed between the upper and lower parts of the windbreak wall. A driving device for raising and lowering the lower part of the windbreak wall is also provided at the lower part of the windbreak wall. The driving device includes a drive winch A9, a sliding mechanism, a pulley block, and a wire rope. The sliding mechanism includes guides installed on both sides of the lower part of the windbreak wall. The support A6 is slidably mounted on both sides of the lower part of the windbreak wall; the drive winch A9 is mounted on one side of the fixed pulley of the guide support; the pulley group includes three pulleys arranged in a triangle, two of which are located at the lower part of the windbreak wall and are called the lower windbreak wall pulley A5, and the other is located on the guide support and is called the guide support fixed pulley; the wire rope fixing wedge sleeve A8 is mounted on the guide support on the other side of the lower part of the windbreak wall; one end of the wire rope A10 is fixed to the drive winch, and the other end passes through the guide support fixed pulley A7 and the lower windbreak wall pulley A5 in sequence, and is finally fixed to the wire rope fixing wedge sleeve A8.

[0007] The windbreak wall of the grab unloader described above has its upper part A1 and lower part A4 hinged together by a connecting hinge shaft A11.

[0008] The windbreak wall of the grab unloader described above has upper guide blocks A2 on both sides of the upper part of the windbreak wall. When the upper guide blocks A2 slide down to the guide bracket A6, they are slidably connected with the guide bracket.

[0009] Compared with the prior art, the present invention has the following technical effects:

[0010] 1. Fully functional and novel in design. This patented project can meet the requirements of unloading and cleaning operations, and while blocking dust, it further increases the safety space for the grab bucket to unload materials above the hopper, making it highly practical.

[0011] 2. Simple operation and convenient maintenance. This type of landside windbreak can be operated from the driver's cab when switching between different working conditions, and its simple structure greatly reduces the difficulty of subsequent maintenance.

[0012] 3. Low cost and high efficiency. Compared with the traditional landside windbreak wall arrangement, the innovative solution involved in this patent is simply a combination of the original two forms with structural adjustments. There are no complex mechanical components, and the cost of both mechanical design and electrical control is the most cost-effective. Moreover, due to the fewer transmission chains, the operation efficiency is high.

[0013] This patent is novel in form, practical, and its working principle and related performance parameters have been recognized by the owner, making it worthy of further promotion and application. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 yes Figure 1 Left view.

[0016] Figure 3 yes Figure 1 Schematic diagram of steel wire rope winding. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are 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 are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] Conventional bridge-type grab unloaders have a hopper top surrounded by a sea-side adjustable receiving plate, two fixed side walls, and a land-side movable windbreak. The two fixed side walls are fixedly installed, and when the movable land-side windbreak is erected, it fits tightly against the corresponding fixed side walls on both sides, forming a U-shaped windbreak. This patent mainly focuses on innovative modifications to the land-side windbreak. Conventional land-side windbreaks are arranged in two ways: vertically movable and horizontally open. The main function of the land-side windbreak is to prevent dust spillage. During unloading, it needs to form a three-sided enclosure with the two side walls. However, because the grab moves very quickly from the sea side towards the hopper along with the trolley, there is a risk of the grab hitting the land-side windbreak. Both vertically movable and horizontally open arrangements have drawbacks: 1. The vertically movable arrangement can lower the grab to a certain height to avoid collision, but it affects dust control; 2. The horizontally open type cannot be opened during unloading to prevent dust, posing a risk of the grab hitting the grab.

[0022] This utility model is an innovative improvement on the current conventional landside windbreak wall. The following is a combination of... Figure 1-3 Detailed description of the specific structure and working process of this utility model:

[0023] like Figure 1 and Figure 3As shown, a novel grab bucket unloader's hopper windbreak wall includes two fixed side walls and a movable landside windbreak wall between the two fixed side walls. The movable landside windbreak wall comprises an upper windbreak wall A1 and a lower windbreak wall A4 hinged together. A pitch cylinder A3 or a pitch electric push rod is installed between the upper and lower windbreak walls. A driving device for raising and lowering the lower windbreak wall is also provided at the lower part of the windbreak wall. The driving device includes a drive winch A9, a sliding mechanism, a pulley block, and a wire rope. The sliding mechanism includes guide brackets A6 installed on both sides of the lower windbreak wall, with both sides of the lower windbreak wall slidably mounted on the guide brackets A6. The drive winch A9 is installed on one side of the fixed pulley of the guide bracket. Figure 1 As shown, the pulley system includes three pulleys arranged in a triangle. Two pulleys are located at the lower part of the windbreak wall, called the lower windbreak wall pulley A5, and the other is located on the guide bracket, called the guide bracket fixed pulley. A wire rope fixing wedge sleeve A8 is installed on the guide bracket on the other side of the lower part of the windbreak wall. One end of the wire rope A10 is fixed to the drive winch, and the other end passes sequentially around the guide bracket fixed pulley A7 and the lower windbreak wall pulley A5, and is finally fixed to the wire rope fixing wedge sleeve A8. The upper part A1 and the lower part A4 of the windbreak wall are hinged by a connecting hinge shaft A11, which facilitates the rotation of the upper part of the windbreak wall to achieve the purpose of pitching. Upper guide blocks A2 are provided on both sides of the upper part of the windbreak wall. When the upper guide block A2 slides down to the guide bracket A6, it slides into the guide bracket. When the upper part of the windbreak wall descends to the guide bracket, it slides into the guide bracket, enabling smooth lifting and lowering operations.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the novel grab unloader of this utility model has two lower windbreak wall pulleys, which are respectively arranged horizontally at the lower part of the windbreak wall. The other end of the wire rope passes through the guide bracket fixed pulley and the two lower windbreak wall pulleys in sequence, and is finally fixed on the wire rope fixing wedge sleeve.

[0025] The working process of this utility model is as follows:

[0026] 1. Normal unloading condition: By driving the winch A9 to tighten the wire rope A10, the upper part A1 and the lower part A4 of the windbreak wall are raised to the highest position through the cooperation of the lower windbreak wall pulley A5 and the guide bracket fixed pulley A7, and are at the same height as the fixed windbreak wall on the side wall of the hopper. Then, the upper part A1 of the windbreak wall is opened outward by the action of the upper windbreak wall pitch cylinder A3, and then the grab bucket can unload normally. At this time, the tilting angle of the upper part A1 of the windbreak wall increases the extra space for the grab bucket to swing, avoiding the collision between the grab bucket and the land-side windbreak wall, which could cause a safety accident.

[0027] 2. Ship Unloader Cleaning Operation: When the ship unloader lifts the cleaning machine from the span to the bulk carrier's hold for cleaning, the upper part of the windbreak wall (A3) is activated by the pitch cylinder to tilt the upper part of the windbreak wall (A1) to a vertical position. Then, the winch (A9) releases the wire rope (A10). At this time, the upper part of the windbreak wall (A1) and the lower part of the windbreak wall (A4) descend together. During the descent, to prevent swaying, the upper guide block (A2) and guide bracket (A6) on the sides of the upper and lower parts of the windbreak wall slide and cooperate to ensure a smooth descent. When the upper part of the windbreak wall (A1) is aligned with the top edge of the hopper opening, the winch (A9) stops. At this point, the grab bucket can lift the cleaning machine from the top edge of the hopper on the land side of the windbreak wall, move it to the extension of the ship unloader, and then lower it into the bulk carrier's hold.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A novel windbreak wall for a grab unloader's hopper, comprising two fixed side walls and a movable landside windbreak wall disposed between the two fixed side walls on the landside, characterized in that: The movable landside windbreak wall includes an upper part (A1) and a lower part (A4) of the windbreak wall that are hinged to each other. A pitch cylinder (A3) or a pitch electric push rod is installed between the upper and lower parts of the windbreak wall. A drive device capable of raising and lowering the lower part of the windbreak wall is also installed at the lower part of the windbreak wall. The drive device includes a drive winch (A9), a sliding mechanism, a pulley block, and a wire rope. The sliding mechanism includes guide brackets (A6) installed on both sides of the lower part of the windbreak wall, with both sides of the lower part of the windbreak wall slidably mounted on the guide brackets (A6). The driven winch (A9) is installed on one side of the fixed pulley of the guide bracket; the pulley group includes three pulleys arranged in a triangle, two of which are set at the lower part of the windbreak wall and called the lower windbreak wall pulley (A5), and the other is set on the guide bracket and called the guide bracket fixed pulley. The wire rope fixing wedge sleeve (A8) is installed on the guide bracket on the other side of the lower part of the windbreak wall; one end of the wire rope (A10) is fixed to the driven winch, and the other end passes through the guide bracket fixed pulley (A7) and the lower windbreak wall pulley (A5) in sequence, and is finally fixed to the wire rope fixing wedge sleeve (A8).

2. The windbreak wall of the grab bucket unloader hopper according to claim 1, characterized in that: The upper part (A1) and the lower part (A4) of the windbreak wall are hinged together by a connecting hinge (A11).

3. The windbreak wall for the hopper of the novel grab unloader according to claim 1, characterized in that: Both sides of the upper part of the windbreak wall are provided with upper guide blocks (A2), and the upper guide blocks (A2) slide down to the guide bracket (A6) and are slidably connected to the guide bracket.

Images