Device for rapidly cleaning frozen and sticky materials in excavator bucket

Abstract

The invention discloses a device for rapidly cleaning frozen and sticky materials in an excavator bucket and the bucket, and belongs to the technical field of open-cast mining equipment. The device comprises a chain net and a fixing device. The chain net is of a net structure formed by connecting a plurality of main chains and auxiliary chains in a crossed mode and used for being tightly attached to the inner wall of the bucket, and a plurality of fixing chain rings are arranged on the chain net. The fixing device is connected with the fixing chain ring and used for detachably fixing the chain net to the inner wall of the bucket. During cleaning, frozen sticky materials are wrapped in the chain net, the chain net is pulled outwards after fixing is removed, and then the frozen sticky materials can be stripped from the inner wall of the bucket integrally or massively along with the chain net, so that the cleaning efficiency is greatly improved, and the labor intensity of workers and the safety risk are reduced. The invention further discloses the excavator bucket comprising the device.

Description

Technical Field

[0001] This invention belongs to the technical field of major equipment for continuous open-pit coal mining, and specifically relates to a device for quickly cleaning frozen and sticky materials inside the bucket of an excavator. Background Technology

[0002] In northern regions during winter, excavators are prone to material freezing and sticking during operation. When moisture-containing materials come into contact with the cold inner wall of the bucket, they will slowly freeze and stick to the inner wall of the bucket layer by layer, and the sticking will become thicker and thicker. This will compress the internal space of the bucket, reduce the actual volume of the bucket, and consequently reduce the amount of material that can be put into the bucket. Ultimately, this will reduce the excavator's production capacity and force it to stop to clean the frozen material stuck to the bucket.

[0003] Material removal from the bucket is usually done manually, with workers using hammers, chisels, crowbars, etc., to break up and remove the frozen and sticky material bit by bit.

[0004] In cold regions, winter temperatures are extremely low, with some areas experiencing minimum temperatures as low as -40°C. The material inside the excavator bucket becomes very firmly frozen, making it extremely difficult to break open with hammers and chisels. Crowbars are also difficult to insert into the frozen material and pry it out. Therefore, it is extremely difficult and time-consuming for workers to clear the frozen material from the bucket using simple tools like hammers, chisels, and crowbars, severely reducing the excavator's effective working time and leading to reduced production in winter, seriously impacting the supply of coal during the winter. Furthermore, the working conditions for workers removing frozen material are extremely harsh. Not only is the labor intensity high, but the cold and harsh winter environment also increases the difficulty of the work, reduces efficiency, and poses a safety risk of injury from falling debris. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a device for quickly cleaning frozen and sticky materials inside the bucket of an excavator.

[0006] The technical solution adopted in this invention is: a device for quickly cleaning frozen and sticky materials inside an excavator bucket. The key technical points are: it includes a chain mesh and a fixing device; the chain mesh is a mesh structure composed of multiple main chains and auxiliary chains that are cross-connected and used to fit against the inner wall of the bucket; multiple fixing chain links are provided on the chain mesh; the fixing device is connected to the fixing chain links and is used to detachably fix the chain mesh to the inner wall of the bucket.

[0007] In the above scheme, the main chain is composed of multiple chain links connected end to end by interlocking chain links; the main chains intersect to form multiple nodes; and the auxiliary chains are arranged between the main chains and cross-connected with the main chains or other auxiliary chains.

[0008] In the above scheme, the auxiliary chain is formed by connecting multiple chain links sequentially through a nested chain link arrangement;

[0009] In the above scheme, the two chains at the node share a single link, or are connected by interlocking links.

[0010] In the above scheme, when two intersecting chains at the node share a common link, a fixed link is connected to the common link.

[0011] In the above scheme, when the links of the two intersecting chains at the node are nested together, the link on the first chain used for nesting is the first nesting link, and the link on the second chain that is nested with the first nesting link is the second nesting link; a fixed link is connected to the link adjacent to the first nesting link and / or the second nesting link.

[0012] In the above scheme, the fixing device includes a bolt, a nut, and a cotter pin; the bolt passes through the fixing chain link and is fixed by the nut, and the cotter pin is installed on the protruding end of the bolt.

[0013] A type of excavator bucket, the key technical feature of which is that a device for quickly cleaning frozen and sticky materials inside the excavator bucket is connected inside the bucket.

[0014] In the above scheme, mounting holes are provided in the bucket at positions that are compatible with the fixed chain links.

[0015] The beneficial effects of this invention are as follows: This device for quickly cleaning frozen and sticky materials inside an excavator bucket includes a chain mesh and a fixing device. The chain mesh is a mesh structure composed of multiple main chains and auxiliary chains connected in a cross pattern, used to tightly adhere to the inner wall of the bucket. Multiple fixing chain links are provided on the chain mesh. The fixing device is connected to the fixing chain links to detachably fix the chain mesh to the inner wall of the bucket. With this invention, workers only need to untie the fixing device and then use an electric hoist, hand hoist, crane, or other equipment capable of applying tension to pull the chain links, thereby driving the chain mesh and causing all or part of the frozen and sticky materials inside the bucket to detach from the inner wall of the bucket. This significantly reduces the labor intensity of workers, improves the safety of material cleaning, greatly increases the bucket cleaning speed, and further enhances the operating efficiency of the excavator, thus helping to increase the annual output of the entire open-pit mine and improve its economic benefits. In addition, in the early stages of frozen material adhering to the inner wall of the bucket, the chains in the chain mesh can swing freely, which can "knock off" some of the initially frozen material adhering to the inner wall of the bucket, thus delaying the initial adhesion of material to the inner wall of the bucket and extending the time interval between each cleaning of frozen material. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main chain and auxiliary chain arrangement of the chain network in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the seventh chain node (shared chain ring) in an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the seventh chain node (chain rings nested together) in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the bucket opening in an embodiment of the present invention. Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the bucket opening in an embodiment of the present invention. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the installation of node seven in an embodiment of the present invention;

[0023] The serial numbers are explained as follows: 1. Chain mesh, 2. Fixing device, 201. Bolt, 202. Nut, 203. Cotter pin, 4. Main chain, 5. Auxiliary chain, 6. Fixing link, 101. Main chain one, 102. Main chain two, 103. Main chain three, 104. Main chain four, 105. Main chain five, 106. Main chain six, 301. Node one, 302. Node two, 303. Node three, 304. Node four, 305. Node five, 306. Node six, 307. Node seven, 308. Node eight, 309. Node nine, 310. Node ten, 401. Front area, 402. Bottom area, 403. Side area one, 404. Side area two, 701. Hole one, 702. Hole two, 703. Hole three, 704. Hole four, 705. Hole five, 706. Hole six, 707. Hole seven, 708. Hole eight, 709. Hole nine, 710. Hole ten. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the following description is provided in conjunction with the accompanying drawings. Figures 1-6 The present invention will be further described in detail below with reference to specific embodiments.

[0025] The cleaning device used in this embodiment mainly involves arranging a layer of iron chain mesh tightly against the inner wall of the bucket. When frozen materials stick to the bucket, the iron chain mesh is also frozen in the frozen layer. When cleaning the frozen materials, it is only necessary to pull any one of the iron rings of the iron chain mesh to lift the iron chain mesh, thereby causing the frozen materials in the bucket to quickly fall off the inner wall of the bucket, thus achieving rapid cleaning of the frozen materials sticking to the inner wall of the bucket.

[0026] This embodiment provides a device for quickly cleaning frozen and sticky materials inside an excavator bucket, including a chain mesh 1 and a fixing device 2.

[0027] Chain network 1 comprises seven intersecting main chains 4 and several auxiliary chains 5 parallel or approximately parallel to the main chains 4. Main chains 4 include Main Chain 1 (101), Main Chain 2 (102), Main Chain 3 (103), Main Chain 4 (104), Main Chain 5 (405), Main Chain 6 (106), and Main Chain 7 (107). Main Chain 1 (101) and Main Chain 2 (102) are arranged parallel to each other. Main Chain 3 (103) and Main Chain 4 (104) are arranged parallel to each other. One end of Main Chain 3 (103) intersects with Main Chain 1 (101) at node 2 (302). The other end of Main Chain 3 (103) is connected to one end of Main Chain 4 (104) via Main Chain 7 (107), with connection points at nodes 9 (309) and 10 (310). The other end of Main Chain 4 (104) intersects with Main Chain 1 (101) at node 3 (303). Similarly, main chain 3 103 intersects with main chain 2 102 at node 6 306, and main chain 4 104 intersects with main chain 2 102 at node 7 307. One end of main chain 1 101 and main chain 2 102 are connected by main chain 5 105, with connection points at nodes 1 301 and 5 305 respectively. The other end of main chain 1 101 and main chain 2 102 are connected by main chain 6 106, with connection points at nodes 4 304 and 8 308 respectively. Through the above connections, the seven main chains form a three-dimensional framework network covering the front, bottom, and two sides of the bucket, naturally dividing the area into front region 401, bottom region 402, side region 1 403, and side region 2 404.

[0028] At each node, the two intersecting main chains are connected using one of the following two methods:

[0029] Method 1: In this embodiment, at each node from Node 301 to Node 310, the two intersecting main chains share a single link, which simultaneously serves as a component of the two intersecting main chains. A fixed link 6 is directly connected to this shared link, such as... Figure 2 As shown.

[0030] Method 2: In this embodiment, at the intersection of the two chains at nodes 301 to 310, their links are interlocked. Specifically, the link on the horizontal main chain used for interlocking is called a horizontal loop, and the link on the vertical main chain that interlocks with the horizontal loop is called a vertical loop. A fixed link 6 is simultaneously connected to both the link adjacent to the horizontal loop and the vertical loop. For example... Figure 3 As shown.

[0031] Regardless of the connection method used in this embodiment, the fixed chain link 6 serves as the connection interface between the node and the bucket wall for subsequent installation and fixing.

[0032] To increase the chain network density and ensure effective movement of all frozen materials, multiple auxiliary chains 5 are arranged parallel or approximately parallel to the main chain 101 or main chain 3 103 within each region (401-404) enclosed by the main chain. The number of auxiliary chains 5 in this embodiment is determined according to the distance between the chains. Each auxiliary chain 5 intersects with the main chain 4 or auxiliary chain 5 perpendicular or approximately perpendicular to it. The two chains (main chain 4 or auxiliary chain 5) at the intersection point share a chain link or the chain links at the intersection point are nested together, ultimately forming a crisscrossing "T"-shaped chain network 1.

[0033] In this embodiment, the installation and fixing method of the chain mesh 1 and the bucket is as follows:

[0034] like Figure 4 , Figure 5 As shown, ten mounting holes are provided at specific locations on the bucket wall, specifically as follows: Hole 2 702 and Hole 3 703 are located near the upper end of the intersection line between the front and left and right sides of the bucket; Hole 6 706 and Hole 707 are located near the two ends of the intersection line between the front and bottom surfaces of the bucket; Hole 1 701, Hole 4 704, Hole 5 705, and Hole 8 708 are located on the bucket near the two ends of the intersection line between the side of the bucket and the bucket wheel of the bucket excavator; Hole 9 709 and Hole 10 710 are located on the bucket near the intersection line between the bottom surface of the bucket and the bucket wheel. Holes 1 701 to 10 710 are used to pass through the fixing links 6 on the chain mesh nodes 1 301 to 10 310 respectively. The fixing links 6 are fixed to the outer wall of the bucket at the opening by the fixing device 2.

[0035] In this embodiment, the chain mesh 1 is installed on the inner wall surface of the bucket. Its front area 401 is in close contact with the front inner wall of the bucket, its side areas 403 and 404 are in close contact with the side inner walls of the bucket, and its bottom area 402 is in close contact with the bottom inner wall of the bucket. The fixing chain links 6 on nodes 301 to 310 pass through holes 701 to 710 on the bucket wall and are fixed to the outer wall at the bucket opening by the fixing device 2.

[0036] The fixing device 2 in this embodiment can be used in three ways:

[0037] The first method consists of a bolt 201, a nut 202, and a cotter pin 203. After the bolt 201 passes through the fixing link 6, the nut 202 is screwed on to prevent the bolt 201 from falling out of the fixing link 6. Then, the cotter pin 203 is installed on the end of the bolt 201 to prevent the bolt 201 from falling out, ensuring that the fixing link 6 is reliably fixed to the bucket wall.

[0038] The second method is to pre-weld studs onto the fixed chain link 6. During installation, only one locking nut is needed. Tighten the locking nut onto the stud to fix the fixed chain link 6, thereby fixing the entire chain mesh.

[0039] The third method involves using a pin, which passes through the fixed chain link 6 to secure it. Both ends of the pin pass through a pin bracket fixed to the outer wall of the bucket, and cotter pins are inserted at both ends to prevent the pin from falling out of the fixed chain link 6.

[0040] When frozen material adheres to the inner wall of the bucket and needs to be removed, simply loosen the fixing device 2, then locate any chain link on the chain mesh 1. Use an electric hoist, hand hoist, crane, or other equipment capable of applying tension to pull the chain link. The chain link will move the chain mesh 1, which in turn will move the frozen material, separating it from the bucket as a whole or in several large pieces, achieving a rapid removal of the frozen material. After removing any remaining frozen material from the chain mesh, re-pass the fixing chain links 6 on nodes 1-301 to 10-310 through holes 1-701 to 10-710 on the bucket wall and fix them to the outer wall at the bucket opening using the fixing device 2. This completes the installation of the chain mesh 1. Production can resume after all buckets have been cleaned in sequence.

[0041] When the adhesion force between frozen and sticky materials and the inner wall of the bucket is too great, the outer wall of the bucket can be heated appropriately to partially melt the adhesion surface, thereby reducing the adhesion force.

[0042] This embodiment utilizes the large contact area between the dense iron chains of the chain mesh 1 and the frozen and sticky material inside the bucket. The contact force is greater than the adhesion force between the frozen and sticky material and the inner wall of the bucket, thereby enabling the frozen and sticky material to be quickly separated from the inner wall of the bucket along with the chain mesh 1.

[0043] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for quickly cleaning frozen and sticky materials inside an excavator bucket, characterized in that, It includes a chain mesh (1) and a fixing device (2); the chain mesh (1) is a mesh structure formed by multiple main chains (4) and auxiliary chains (5) connected in a cross-connection, which is used to fit against the inner wall of the bucket; multiple fixing links (6) are provided on the chain mesh (1); the fixing device (2) is connected to the fixing links (6) and is used to detachably fix the chain mesh (1) to the inner wall of the bucket.

2. The device for quickly cleaning frozen and sticky materials inside an excavator bucket according to claim 1, characterized in that; The main chain (4) is composed of multiple chain links connected end to end by interlocking chain links; each of the main chains (4) intersects to form multiple nodes; and the auxiliary chains (5) are arranged between the main chains (4) and cross-connected with the main chains (4) or other auxiliary chains (5).

3. The device for rapidly cleaning frozen and sticky materials inside an excavator bucket according to claim 2, characterized in that; The auxiliary chain (5) is formed by connecting multiple links in sequence through interlocking links.

4. The device for quickly cleaning frozen and sticky materials inside an excavator bucket according to claim 2, characterized in that, The two chains at the node share a single link, or are connected by interlocking links.

5. The device for quickly cleaning frozen and sticky materials inside an excavator bucket according to claim 4, characterized in that, When two intersecting chains at the node share a common link, a fixed link (6) is connected to the common link.

6. The device for quickly cleaning frozen and sticky materials inside an excavator bucket according to claim 4, characterized in that, When the links of the two intersecting chains at the node are nested together, the link on the first chain used for nesting is the first nesting link, and the link on the second chain that is nested with the first nesting link is the second nesting link; a fixed link (6) is connected to the link adjacent to the first nesting link and / or the second nesting link.

7. The device for rapidly cleaning frozen and sticky materials inside an excavator bucket according to claim 1, characterized in that, The fixing device (2) includes a bolt (201), a nut (202) and a cotter pin (203); the bolt (201) is inserted into the fixing chain link (6) and fixed by the nut (202), and the cotter pin (203) is installed on the protruding end of the bolt (201).

8. An excavator bucket, characterized in that: The bucket is connected to a device as described in claims 1-7 for quickly cleaning frozen and sticky materials inside the excavator bucket.

9. An excavator bucket according to claim 8, characterized in that, An installation hole is provided inside the bucket at a position that matches the fixed chain link (6).

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