Conveyor cable trough and shearer pipeline arrangement
By designing a detachable and connectable conveyor cable trough and partitioned sub-space structure, the problem of insufficient cable trough space when multiple coal mining machines are operating in tandem is solved. This enhances the adaptability of the cable trough and effectively isolates pipelines, reduces cable tangling and wear, and improves the convenience of on-site maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI TIANDI MINING EQUIP TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-10
AI Technical Summary
The existing cable trough structure has insufficient space in the lower layer when multiple coal mining machines are working together, which leads to cable entanglement and wear, affecting service life and making on-site maintenance difficult.
Design a conveyor cable trough with a front and rear split and detachable connection structure. The lower space is divided into multiple sub-spaces by vertical and horizontal rod-shaped threaded connectors to accommodate the pipeline laying needs of multiple coal mining machines. Cable holes are provided on the cable trough unit to avoid cable tangling.
This allows multiple coal mining machines to operate normally without the need to replace the cable trays, enhancing the adaptability of the cable trays, effectively isolating cables and water pipes from different equipment, reducing cable friction and tangling, and facilitating on-site maintenance.
Smart Images
Figure CN224481427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a conveyor cable trough and a coal mining machine pipeline layout based on the cable trough, including coal mining machine pipeline layouts for single and multiple coal mining machines in the same working face. Background Technology
[0002] The scraper conveyor cable trough is a supporting device for the moving cables of the coal mining machine, mainly used to house the coal mining machine's cables, water pipes, and other equipment cables. Currently, the cable trough is an integral structure, designed for situations where only one coal mining machine is deployed at the working face. Figure 1a , 1b As shown, cable troughs are generally divided into single-layer structures (for thin coal seams) and two-layer structures (for thick coal seams). In a two-layer structure, the upper layer houses movable cable clamps, while the lower layer houses non-movable water pipes and cables. The inner cavity of the lower layer of the cable trough is generally only large enough to accommodate the cables for one coal mining machine. Currently, some ultra-long working faces use two or three coal mining machines working in tandem, but the cable trough still uses the original structure, resulting in insufficient space for placing cables in the lower layer. This necessitates placing cables in both the upper and lower layers. The upper layer cables are easily worn down after repeated scraping against the movable cable clamps, reducing their service life. After repeated oblique cutting and pushing, the lower layer cables are prone to tangling, which is detrimental to on-site cable maintenance. Utility Model Content
[0003] The purpose of this utility model is to provide a cable trough for a conveyor and a pipeline arrangement for a coal mining machine, so that when the number of coal mining machines in the same working face increases, the original cable trough can continue to be used normally after appropriate adjustment, without the need to replace the cable trough, and can avoid pipeline entanglement.
[0004] The main technical solutions of this utility model are as follows:
[0005] A conveyor cable trough includes several cable trough units connected sequentially from left to right. Each cable trough unit includes a front half and a rear half. The front half has a front side plate and a front bottom plate and a front partition plate fixed behind the front side plate and extending horizontally backward. The front partition plate is located above the front bottom plate. The rear half has a rear side plate and a rear bottom plate and a rear partition plate fixed in front of the rear side plate and extending horizontally forward. The rear partition plate is located above the rear bottom plate. The front bottom plate and the front partition plate have a pair of vertically extending and coaxially aligned front mounting holes. The rear bottom plate and the rear partition plate have a pair of vertically extending and coaxially aligned rear mounting holes. Each front mounting hole and rear mounting hole has multiple pairs and are arranged in a rectangular array pattern. The front and rear bottom plates overlap each other, and the front and rear partition plates overlap each other to form a double-layer through-slot with the opening facing upward and extending horizontally. The rear base plate together constitutes the base plate of the cable trough unit, and the front and rear partitions together constitute the partitions of the cable trough unit. All partitions divide the space inside the cable trough into an upper space and a lower space. Using the front and rear mounting holes, the corresponding front and rear partitions and the front and rear base plates are fixed together by multiple vertically extending rod-shaped threaded connectors. The corresponding front and rear side plates are fixed together by multiple horizontally extending rod-shaped threaded connectors. All the vertical rod-shaped threaded connectors are arranged in a rectangular array in a front-back-left-right pattern, and all the horizontal rod-shaped threaded connectors are arranged in a straight line from left to right. The vertical rod-shaped threaded connectors and the horizontal rod-shaped threaded connectors intertwine to divide the lower space into at least six sub-spaces distributed in a front-back-up-down pattern. Some of the partitions of the cable trough unit are provided with wire-passing holes.
[0006] The front mounting holes include at least the first, second, and third rows of front mounting holes arranged sequentially from back to front, and the rear mounting holes include at least the first, second, third, and fourth rows of rear mounting holes arranged sequentially from back to front.
[0007] The connection methods for the front and rear halves include the following three types: Connection Method 1: The front and rear mounting holes of the first row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is passed through them; the front and rear mounting holes of the third row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is passed through them. Connection Method 2: The front and rear mounting holes of the first row and the second row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is passed through them; the front and rear mounting holes of the third row and the fourth row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is passed through them. In the first connection method, the front and rear mounting holes are aligned and coaxial, and the vertical rod-shaped threaded connector is inserted through them. In the second connection method, the front and rear mounting holes of the first row are aligned and coaxial, and the vertical rod-shaped threaded connector is inserted through them. In the third connection method, the front and rear mounting holes of the second row are aligned and coaxial, and the vertical rod-shaped threaded connector is inserted through them. Regardless of the connection method, the horizontal and vertical rod-shaped threaded connectors divide the lower space into six left and right extending subspaces: upper front, upper middle, upper rear, lower front, lower middle, and lower rear.
[0008] For connection methods two and three, the total length of the conveyor cable trough is preferably not less than 200m, and can be further preferably not less than 400m.
[0009] The cable trough unit can be divided into a trough unit without wire holes and a trough unit with wire holes. The trough unit with wire holes has one or two more wire holes than the trough unit without wire holes. The wire holes are notches located at the left and / or right ends of the front partition. The length of the rear partition is shorter than that of the front partition. The end of the front partition with the notch extends beyond the rear partition in the left and right direction. A portion of the cable trough units of the conveyor cable trough adopts the trough unit with wire holes, while the remaining cable trough units adopt the trough unit without wire holes.
[0010] The cable trough unit can be divided into a trough unit without wire holes and a trough unit with wire holes. The trough unit with wire holes has one or two more wire holes than the trough unit without wire holes. The wire holes are notches located at the left and / or right ends of the front partition. The length of the rear partition is shorter than that of the front partition. The end of the front partition with the notch extends beyond the rear partition in the left-right direction. A portion of the cable trough units of the conveyor cable trough uses trough units with wire holes, while the remaining portion uses trough units without wire holes. For connection method one, the trough units with wire holes are located in the middle of the conveyor cable trough. For connection method two, the trough units with wire holes are distributed near the left and right ends of the conveyor cable trough. For connection method three, the trough units with wire holes are distributed in the middle, near the left and right ends of the conveyor cable trough.
[0011] A coal mining machine pipeline layout includes the aforementioned conveyor cable trough and cables and water pipes for at least one coal mining machine. The cables and water pipes of all coal mining machines are laid in a subspace, or the cables and water pipes of all coal mining machines and the cables and water pipes of the conveyor are laid in a subspace, or the cables and water pipes of the same equipment are laid in the same subspace and the cables and water pipes of different equipment are laid in different subspaces. The equipment is all coal mining machines or includes both the conveyor and all coal mining machines.
[0012] A coal mining machine pipeline layout uses the aforementioned conveyor cable trough containing cable-passing slot units. When the front and rear halves of the trough are connected, the cables and water pipes of one coal mining machine are laid separately in two of the four sub-spaces: front upper, middle upper, front lower, and middle lower; or the cables and water pipes of one coal mining machine are laid separately from the cables and water pipes of the conveyor in the same sub-spaces; or the cables and water pipes of two coal mining machines are laid separately in the same sub-spaces. When only one coal mining machine is laid... When laying cables and water pipes for coal mining machines, there are cable tray units located in the middle of the conveyor cable tray. The cables and water pipes of the coal mining machine are led out from the same cable tray and connected to the electrical control box and water valve of the corresponding coal mining machine. When laying cables and water pipes for two coal mining machines, there are cable tray units located near the left and right ends of the conveyor cable tray. The cables and water pipes of the two coal mining machines are led out from a cable tray near the left and right ends respectively and connected to the electrical control box and water valve of the corresponding coal mining machine respectively.
[0013] When the second connection method is adopted for the front and rear half of the trough, the cables and water pipes of the two coal mining machines are laid separately in four of the six sub-spaces, or the cables and water pipes of the two coal mining machines are laid separately from the cables and water pipes of the conveyor in the six sub-spaces, or the cables and water pipes of the three coal mining machines are laid separately in the six sub-spaces. When laying the cables and water pipes of two coal mining machines, the cable tray units are distributed in the positions near the left end and near the right end of the conveyor cable tray. The cables and water pipes of the two coal mining machines are led out from a cable tray near the left end and near the right end, respectively, and connected to the electrical control box and water valve of the corresponding coal mining machine. When laying the cables and water pipes of three coal mining machines, the cable tray units are distributed in the middle, near the left end and near the right end of the conveyor cable tray. The cables and water pipes of the three coal mining machines are led out from a cable tray located in the middle, near the left end and near the right end, respectively, and connected to the electrical control box and water valve of the corresponding coal mining machine.
[0014] When the front and rear half of the trough adopt the connection method three, the cables and water pipes of the three coal mining machines are laid separately in three of the four sub-spaces: front upper, rear upper, front lower, and rear lower. The cables and water pipes of the same equipment are laid side by side in the same sub-space. Alternatively, the cables and water pipes of the three coal mining machines and the cables and water pipes of the conveyor are laid separately in the four sub-spaces: front upper, rear upper, front lower, and rear lower. The cables and water pipes of the same equipment are laid side by side in the same sub-space. The cable tray units with wire-passing holes are distributed in the middle, near the left end, and near the right end of the conveyor cable tray. The cables and water pipes of the three coal mining machines are led out from a wire-passing hole located in the middle, near the left end, and near the right end, respectively, and connected to the electrical control box and water valve of the corresponding coal mining machine.
[0015] The cables and water pipes of the same coal mining machine are introduced into the conveyor cable trough from the same end. The cables and water pipes of different coal mining machines are introduced into the conveyor cable trough from the same end. Alternatively, the cables and water pipes of some of the different coal mining machines are introduced into the conveyor cable trough from the same end, while the cables and water pipes of the remaining coal mining machines are introduced into the conveyor cable trough from the other end.
[0016] The beneficial effects of this utility model are:
[0017] Because the conveyor cable trough adopts a split and detachable connection structure at the front and rear, and its width is flexibly adjustable, it can meet the pipeline laying needs of single and multiple coal mining machines on the same working face, providing a solution for the pipeline laying of multiple coal mining machines operating in coordinated operations on ultra-long working faces. Since there is no need to replace the cable trough, the overall adaptability of the scraper conveyor is improved.
[0018] By installing longitudinal and transverse rod-shaped threaded connectors in the lower space of the cable trough unit, the connection strength between the front and rear half-grooves is strengthened, while the lower space is divided into multiple sub-spaces, effectively isolating cables and water pipes of different equipment, avoiding tangling and friction between pipes and cables, facilitating on-site maintenance of pipelines, and strengthening the protection of equipment pipelines. Attached Figure Description
[0019] Figure 1a This is a schematic diagram of an existing single-layer conveyor cable trough;
[0020] Figure 1b This is a schematic diagram of an existing double-layered conveyor cable trough;
[0021] Figure 2 This is a front view of one embodiment of the cable trough unit of this utility model;
[0022] Figure 3a It is composed of Figure 2 Side view of the front half of the cable trough unit shown;
[0023] Figure 3b It is composed of Figure 2 Side view of the rear half of the cable trough unit shown;
[0024] Figure 4a This is a top view of the cable trough unit formed by connecting the front and rear halves of the trough as shown in Figure 3.
[0025] Figure 4b This is a side view of the cable trough unit formed by connecting the front and rear halves of the trough as shown in Figure 3.
[0026] Figure 5aThis is a top view of the cable trough unit formed by connecting the front and rear halves of the trough using the second connection method, as shown in Figure 3.
[0027] Figure 5b This is a side view of the cable trough unit formed by connecting the front and rear halves of the trough using the second connection method, as shown in Figure 3.
[0028] Figure 6a This is a top view of the cable trough unit formed by connecting the front and rear halves of the trough using method three, as shown in Figure 3.
[0029] Figure 6b This is a side view of the cable trough unit formed by connecting the front and rear halves of the trough using method three, as shown in Figure 3.
[0030] Figure 7 This is a schematic diagram showing the pipeline leading out from the through hole;
[0031] Figure 8 This is a schematic diagram of a single-lane access method;
[0032] Figure 9 This is a schematic diagram of a dual-lane access method. Attached image description:
[0034] 1. Cable trough unit; 11. Front side plate; 12. Front partition plate; 13. Front bottom plate; 14. Front mounting hole; 15. Rear side plate; 16. Rear partition plate; 17. Rear bottom plate; 18. Rear mounting hole; 191. Vertical rod-shaped threaded connector; 192. Horizontal rod-shaped threaded connector; C1. First coal mining machine; D1. Cable of the first coal mining machine; S1. Water pipe of the first coal mining machine; C2. Second coal mining machine; D2. Cable of the second coal mining machine; S2. Water pipe of the second coal mining machine; C3. Third coal mining machine; D3. Cable of the third coal mining machine; S3. Water pipe of the third coal mining machine; D. Cable of the conveyor; S. Water pipe of the conveyor; K. Cable hole. Detailed Implementation
[0035] like Figure 2-9 As shown, this utility model discloses a conveyor cable trough, comprising a plurality of cable trough units 1 connected sequentially from left to right, wherein the left-right direction of the cable trough is also its length direction. Each cable trough unit includes a front half (see...). Figure 3a ) and the rear half of the slot (see Figure 3bThe front half of the slot has a front side plate 11 and a front bottom plate 13 and a front partition plate 12 that extend horizontally backward and are fixed behind the front side plate. The front partition plate is located above the front bottom plate. The rear half of the slot has a rear side plate 15 and a rear bottom plate 17 and a rear partition plate 16 that extend horizontally forward and are fixed in front of the rear side plate. The rear partition plate is located above the rear bottom plate. The front bottom plate and the front partition plate have a pair of vertically extending and coaxially aligned front mounting holes 14. The rear bottom plate and the rear partition plate have a pair of vertically extending and coaxially aligned rear mounting holes 18. There are multiple pairs of front mounting holes and rear mounting holes, all arranged in a rectangular array pattern. Preferably, the front and rear mounting holes use the same array specifications (i.e., the same row spacing and column spacing).
[0036] The front and rear bottom plates overlap, and the front and rear partitions overlap to form a double-layered through-slot extending upwards and to the left and right. The front and rear bottom plates together constitute the bottom plate of the cable trough unit, and the front and rear partitions together constitute the partitions of the cable trough unit. All partitions divide the space inside the cable trough into an upper space and a lower space. The upper space is used to arrange movable cable clamps, while the cables and water pipes of the coal mining machine are arranged in the lower space. The lower space can also accommodate the cables and water pipes of the conveyor. Using the front and rear mounting holes, the corresponding front and rear partitions and the front and rear bottom plates are fixed together by multiple vertically extending rod-shaped threaded connectors 191. The corresponding front and rear side plates are fixed together by multiple horizontally extending rod-shaped threaded connectors 192. Adjusting the relative positions of the front and rear halves of the trough can change the front and rear width of the cable trough unit. Increasing the width allows for the accommodation of more coal mining machines and other equipment's cables and water pipes. All vertical rod-shaped threaded connectors are arranged in a rectangular array in a front-back, left-right, and right-side pattern. All horizontal rod-shaped threaded connectors are arranged in a straight line in a left-right pattern. The vertical and horizontal rod-shaped threaded connectors interweave to divide the lower space into at least six subspaces distributed vertically, horizontally, and vertically. The number of subspaces varies depending on the number of rows or columns of the vertical rod-shaped threaded connectors. Therefore, even if multiple coal mining machines operate in tandem at the working face, the cables and water pipes of different coal mining machines can be effectively isolated from each other. If there are enough subspaces, even cables and water pipes of the same equipment can be effectively isolated, thus reducing friction and entanglement between pipelines, which is beneficial for on-site pipeline maintenance and better protects the pipelines. Some cable trough units have through holes K on their partitions so that cables and water pipes can be led out from the through holes and connected to the corresponding equipment (see...). Figure 7 ).
[0037] In the illustrated embodiment, when the cable trough unit is installed on the conveyor, the front half of the trough is directly fixed to the conveyor, while the rear half is fixed to the front half. If the front-to-back width of the cable trough unit needs to be changed, the front-to-back position of the rear half relative to the front half can be adjusted.
[0038] In the illustrated embodiment, the front panel adopts a flat plate structure, and the rear panel is a frame structure made up of several strips.
[0039] Furthermore, the front mounting holes include at least a first row, a second row, and a third row of front mounting holes arranged sequentially from back to front, and the rear mounting holes include at least a first row, a second row, a third row, and a fourth row of rear mounting holes arranged sequentially from back to front. With this arrangement, the cable trough unit can accommodate the pipelines of multiple coal mining machines.
[0040] Furthermore, the front and rear half-slots can adopt a variety of different connection methods. Figures 4, 5, and 6 show several preferred connection methods in the case of only three rows of front mounting holes and four rows of rear mounting holes, namely connection method one, two, and three.
[0041] Connection method 1: such as Figure 4a , 4b As shown, the front mounting holes in the first row and the rear mounting holes in the first row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is inserted through them. The front mounting holes in the third row and the rear mounting holes in the third row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is inserted through them.
[0042] Connection method two: such as Figure 5a , 5b As shown, the front mounting holes in the first row and the rear mounting holes in the second row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is inserted through the front mounting holes in the third row and the rear mounting holes in the fourth row.
[0043] Connection method three: such as Figure 6a , 6b As shown, the front mounting holes in the first row and the rear mounting holes in the third row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is inserted through the front mounting holes in the second row and the rear mounting holes in the fourth row.
[0044] Regardless of the connection method mentioned above, the transverse and longitudinal rod-shaped threaded connectors divide the lower space into six approximately extending sub-spaces: upper front, upper middle, upper rear, lower front, lower middle, and lower rear. When there are more rows of front and rear mounting holes and more rows of vertical rod-shaped threaded connectors are used, the front and rear half-grooves can have more connection methods, while dividing the lower space into more sub-spaces, and the corresponding cable trays can accommodate more pipelines.
[0045] The width of the cable trough units shown in Figures 4, 5, and 6 gradually increases, thus allowing for a progressively larger number of coal mining machines that can be used in the same working face. When there are one or two coal mining machines in the same working face, the conveyor cable troughs composed of the cable trough units shown in Figure 4 are suitable. When there are two to three coal mining machines in the same working face, the conveyor cable troughs composed of the cable trough units shown in Figure 5 are more suitable. The conveyor cable troughs composed of the cable trough units shown in Figure 6 are more suitable for pipeline layout when there are three or more coal mining machines in the same working face. The total length of the conveyor cable troughs composed of the cable trough units shown in Figures 5 and 6 is preferably not less than 200m, and more preferably not less than 400m.
[0046] For long working faces, the efficiency of mining is significantly improved when three coal mining machines work together in sections on the same working face compared to setting up one or two coal mining machines.
[0047] The cable trough unit can be divided into a trough unit without wire holes and a trough unit with wire holes. The main difference is that the trough unit with wire holes has one or two more wire holes K than the trough unit without wire holes. The wire holes are notches located at the left and / or right ends of the front partition (which can be...). Figure 4a (See the U-shaped notch shown). The rear partition is shorter than the front partition, allowing the end of the front partition with the notch to extend beyond the rear partition in the lateral direction, preventing the rear partition from obstructing the cable passage holes. A portion of the cable trough units for the conveyor uses cable passage hole units to provide passage holes for the pipelines, while the remaining cable trough units can use cable passage hole-less units to minimize the manufacturing cost of the cable trough. The location of the cable passage hole units is determined based on the location where the pipelines of each piece of equipment need to exit the cable trough; preferably, the passage holes are located at or near the midpoint of the corresponding coal mining machine's back-and-forth mining area on the working face.
[0048] Furthermore, for connection method one, the cable-passing slot unit is preferably located in the middle of the conveyor cable trough, suitable for situations with only one coal mining machine. For connection method two, the cable-passing slot units are preferably distributed near the left and right ends of the conveyor cable trough, suitable for situations with two coal mining machines operating in the left and right halves of the working face respectively. For connection method three, the cable-passing slot units are preferably distributed in the middle, near the left and right ends of the conveyor cable trough, suitable for situations with three coal mining machines operating in the middle, left, and right ends of the working face respectively.
[0049] This utility model also discloses a pipeline layout for a coal mining machine, using the aforementioned conveyor cable trough for pipeline arrangement. It includes cables and water pipes for at least one coal mining machine. The cables and water pipes of all coal mining machines are laid in one of the aforementioned sub-spaces, or the cables and water pipes of all coal mining machines and the conveyor are laid in one sub-space, or the cables and water pipes of the same equipment are laid in the same sub-space while the cables and water pipes of different equipment are laid in different sub-spaces. The "equipment" refers to all coal mining machines, or the conveyor and all coal mining machines. The conveyor's cables and water pipes can be laid outside the cable trough, specifically according to existing technology. If there is still space after laying the coal mining machine's cables and water pipes in the sub-spaces of the cable trough, the conveyor's cables and water pipes can also be laid in a sub-space within the cable trough.
[0050] Furthermore, for a conveyor cable trough composed of a portion with slotted sections and a portion without slotted sections, when the front and rear halves of the trough are connected in one manner and there is only one coal mining machine at the working face, the cables and water pipes of that single coal mining machine are laid separately in any two of the four sub-spaces: front upper, middle upper, front lower, and middle lower. Alternatively, the cables and water pipes of one coal mining machine are laid separately from the cables and water pipes of the conveyor in the front upper, middle upper, front lower, and middle lower sub-spaces (e.g., Figure 4a , 4b As shown, the cable D1 and water pipe S1 of the first coal mining machine are laid in the front upper and middle upper subspaces respectively, and the cable D and water pipe S of the conveyor are laid in the front lower and middle lower subspaces respectively. When the front and rear half-slots are connected in the same way and there are two coal mining machines on the working face, the cables and water pipes of these two coal mining machines can be laid separately in the front upper, middle upper, front lower and middle lower subspaces.
[0051] When laying cables and water pipes for only one coal mining machine, the cable tray unit with through-hole is preferably located in the middle of the conveyor cable tray. The cable and water pipe of this coal mining machine are led out from the same through-hole and connected to the corresponding coal mining machine's electrical control box and water valve. When laying cables and water pipes for two coal mining machines, the cable tray unit with through-hole is preferably distributed near the left and right ends of the conveyor cable tray. The cables and water pipes of the two coal mining machines are led out from a through-hole near the left and right ends, respectively, and connected to the corresponding coal mining machine's electrical control box and water valve.
[0052] When the current and rear half-slots adopt connection method two and there are two coal mining machines on the working face, the cables and water pipes of these two coal mining machines can be laid separately in four of the six sub-spaces, or the cables and water pipes of these two coal mining machines can be laid separately from the cables and water pipes of the conveyor in the six sub-spaces (see...). Figure 5a , 5bAs shown, the cable D1 and water pipe S1 of the first coal mining machine are laid in the upper front and upper middle subspaces, respectively; the cable D2 and water pipe S2 of the second coal mining machine are laid in the upper rear and lower rear subspaces, respectively; and the cable D and water pipe S of the conveyor are laid in the lower front and lower middle subspaces, respectively. When the front and rear half-slots adopt connection method two and there are three coal mining machines on the working face, the cables and water pipes of these three coal mining machines are preferably laid separately in six subspaces.
[0053] When laying cables and water pipes for two coal mining machines, the cable tray units with through-holes are preferably distributed in positions near the left and right ends of the conveyor cable tray. The cables and water pipes of the two coal mining machines are led out from a through-hole near the left and right ends, respectively, and connected to the electrical control box and water valve of the corresponding coal mining machine. When laying cables and water pipes for three coal mining machines, the cable tray units with through-holes are preferably distributed in the middle, near the left and right ends of the conveyor cable tray. The cables and water pipes of the three coal mining machines are led out from a through-hole located in the middle, near the left and right ends, respectively, and connected to the electrical control box and water valve of the corresponding coal mining machine.
[0054] When the front and rear half of the mining face are connected in three ways and there are three coal mining machines on the working face, the pipelines, cables, and water pipes of these three coal mining machines are laid separately in three of the four sub-spaces: front upper, rear upper, front lower, and rear lower. The cables and water pipes of the same coal mining machine are laid side by side in the same sub-space. Alternatively, the cables and water pipes of the three coal mining machines and the cables and water pipes of the conveyor are laid separately in the four sub-spaces: front upper, rear upper, front lower, and rear lower. The cables and water pipes of the same equipment are laid side by side in the same sub-space (see [reference]). Figure 6a , 6b As shown, the cable D1 and water pipe S1 of the first coal mining machine are laid side by side in the front upper subspace; the cable D2 and water pipe S2 of the second coal mining machine are laid side by side in the rear upper subspace; the cable D3 and water pipe S3 of the third coal mining machine are laid side by side in the front lower subspace; and the cable D and water pipe S of the conveyor are laid side by side in the rear lower subspace. For this type of coal mining machine pipeline arrangement, the cable tray units are preferably distributed in the middle, near the left end, and near the right end of the conveyor cable tray. The cables and water pipes of the three coal mining machines are respectively led out from a cable tray located in the middle, near the left end, and near the right end, and connected to the corresponding coal mining machine's electrical control box and water valve.
[0055] There are two ways to introduce the pipelines of the coal mining machine into the conveyor cable trough: single-lane entry and double-lane entry. Single-lane entry means that the cables and water pipes of different coal mining machines are introduced into the conveyor cable trough from the same end, such as... Figure 8The pipelines of all three coal mining machines are introduced into the conveyor cable trough from the left end (lower horizontal roadway). Dual-roadway entry means that the cables and water pipes of some of the different coal mining machines are introduced into the conveyor cable trough from the same end, while the cables and water pipes of the remaining coal mining machines are introduced from the other end of the conveyor cable trough. Figure 9 The cables and water pipes of the first and third coal mining machines (C1 and C3) are introduced into the conveyor cable trough from the left end, while the cables and water pipes of the second coal mining machine (C2) are introduced from the right end (upper horizontal roadway) into the conveyor cable trough. Regardless of whether it's a single-roadway or double-roadway approach, the cables and water pipes of the same coal mining machine are usually introduced into the conveyor cable trough from the same end. When using a double-roadway approach, the front-to-back width of the cable trough's inner cavity can be narrower than in a single-roadway approach.
[0056] In this article, "left, right, front, back, up, down" are used to describe related structures to express the relative positional relationship between the corresponding structures, not to limit their absolute orientation. The left and right are borrowed from the traction direction when the coal mining machine is working, and the front and back are borrowed from the direction perpendicular to the coal wall, where front is the direction pointing towards the coal wall.
Claims
1. A conveyor cable trough, comprising a plurality of cable trough units connected sequentially from left to right, characterized in that: The cable trough unit includes a front half-trough and a rear half-trough. The front half-trough has a front side plate and a front bottom plate and a front partition plate that extend horizontally backward and are fixed behind the front side plate. The front partition plate is located above the front bottom plate. The rear half-trough has a rear side plate and a rear bottom plate and a rear partition plate that extend horizontally forward and are fixed in front of the rear side plate. The rear partition plate is located above the rear bottom plate. The front bottom plate and the front partition plate have a pair of vertically extending and coaxially aligned front mounting holes. The rear bottom plate and the rear partition plate have a pair of vertically extending and coaxially aligned rear mounting holes. There are multiple pairs of front mounting holes and rear mounting holes, all arranged in a rectangular array pattern. The front and rear bottom plates overlap each other, and the front and rear partition plates overlap each other to form a double-layer through-trough with the opening extending upward and to the left and right. The front and rear bottom plates together constitute the cable trough unit. The base plate and front and rear partitions together constitute the partitions of the cable trough unit. All partitions divide the space inside the cable trough into an upper space and a lower space. Using front and rear mounting holes, the corresponding front and rear partitions and the front and rear base plates are fixed together by multiple vertically extending rod-shaped threaded connectors. The corresponding front and rear side plates are fixed together by multiple horizontally extending rod-shaped threaded connectors. All the vertical rod-shaped threaded connectors are arranged in a rectangular array in a front-back-left-right pattern, and all the horizontal rod-shaped threaded connectors are arranged in a straight line from left to right. The vertical rod-shaped threaded connectors and the horizontal rod-shaped threaded connectors interweave to divide the lower space into at least six sub-spaces distributed in a front-back-up-down pattern. Some of the partitions of the cable trough unit are provided with wire-passing holes.
2. The conveyor cable trough as described in claim 1, characterized in that: The front mounting holes include at least the first, second, and third rows of front mounting holes arranged sequentially from back to front, and the rear mounting holes include at least the first, second, third, and fourth rows of rear mounting holes arranged sequentially from back to front.
3. The conveyor cable trough as described in claim 2, characterized in that: The connection methods for the front and rear halves include the following three types: Connection Method 1: The front and rear mounting holes of the first row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is passed through them; the front and rear mounting holes of the third row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is passed through them. Connection Method 2: The front and rear mounting holes of the first row and the second row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is passed through them; the front and rear mounting holes of the third row and the fourth row are aligned vertically and coaxially, and a vertical rod-shaped threaded connector is passed through them. In the first connection method, the front and rear mounting holes are aligned and coaxial, and the vertical rod-shaped threaded connector is inserted through them. In the second connection method, the front and rear mounting holes of the first row are aligned and coaxial, and the vertical rod-shaped threaded connector is inserted through them. In the third connection method, the front and rear mounting holes of the second row are aligned and coaxial, and the vertical rod-shaped threaded connector is inserted through them. Regardless of the connection method, the horizontal and vertical rod-shaped threaded connectors divide the lower space into six left and right extending subspaces: upper front, upper middle, upper rear, lower front, lower middle, and lower rear.
4. The conveyor cable trough as described in claim 3, characterized in that: For connection methods two and three, the total length of the conveyor cable trough shall not be less than 200m.
5. The conveyor cable trough as described in claim 3, characterized in that: For connection methods two and three, the total length of the conveyor cable trough shall not be less than 400m.
6. The conveyor cable trough as described in claim 3, 4, or 5, characterized in that: The cable trough unit is divided into a trough unit without wire holes and a trough unit with wire holes. The trough unit with wire holes has one or two more wire holes than the trough unit without wire holes. The wire holes are notches located at the left and / or right ends of the front partition. The length of the rear partition is shorter than that of the front partition. The end of the front partition with the notch extends beyond the rear partition in the left and right direction. A portion of the cable trough units of the conveyor cable trough adopts the trough unit with wire holes, while the remaining cable trough units adopt the trough unit without wire holes.
7. The conveyor cable trough as described in claim 3, characterized in that: The cable trough unit is divided into a trough unit without wire holes and a trough unit with wire holes. The trough unit with wire holes has one or two more wire holes than the trough unit without wire holes. The wire holes are notches located at the left and / or right ends of the front partition. The length of the rear partition is shorter than that of the front partition. The end of the front partition with the notch extends beyond the rear partition in the left-right direction. A portion of the cable trough units of the conveyor cable trough use trough units with wire holes, while the remaining cable trough units use trough units without wire holes. For connection method one, the trough units with wire holes are located in the middle of the conveyor cable trough. For connection method two, the trough units with wire holes are distributed near the left and right ends of the conveyor cable trough. For connection method three, the trough units with wire holes are distributed in the middle, near the left and right ends of the conveyor cable trough.
8. A pipeline layout for a coal mining machine, characterized in that: The device includes the conveyor cable trough as described in claim 1 and the cables and water pipes of at least one coal mining machine. The cables and water pipes of all coal mining machines are laid in one subspace, or the cables and water pipes of all coal mining machines and the cables and water pipes of the conveyor are laid in one subspace, or the cables and water pipes of the same equipment are laid in the same subspace and the cables and water pipes of different equipment are laid in different subspaces. The equipment is all coal mining machines or includes both the conveyor and all coal mining machines.
9. A coal mining machine pipeline layout, employing the conveyor cable trough as described in claim 6, characterized in that: When the front and rear half of the trough are connected, the cables and water pipes of one coal mining machine are laid separately in two of the four sub-spaces: front upper, middle upper, front lower, and middle lower. Alternatively, the cables and water pipes of one coal mining machine and the cables and water pipes of the conveyor are laid separately in the front upper, middle upper, front lower, and middle lower sub-spaces. Or, the cables and water pipes of two coal mining machines are laid separately in the front upper, middle upper, front lower, and middle lower sub-spaces. When laying cables and water pipes for only one coal mining machine, a cable tray unit is set in the middle of the conveyor cable tray. The cables and water pipes of the coal mining machine are led out from the same cable tray and connected to the electrical control box and water valve of the corresponding coal mining machine. When laying cables and water pipes for two coal mining machines, cable tray units are distributed near the left end and near the right end of the conveyor cable tray. The cables and water pipes of the two coal mining machines are led out from a cable tray near the left end and near the right end, respectively, and connected to the electrical control box and water valve of the corresponding coal mining machine. When the second connection method is adopted for the front and rear half of the trough, the cables and water pipes of the two coal mining machines are laid separately in four of the six sub-spaces, or the cables and water pipes of the two coal mining machines are laid separately from the cables and water pipes of the conveyor in the six sub-spaces, or the cables and water pipes of the three coal mining machines are laid separately in the six sub-spaces. When laying the cables and water pipes of two coal mining machines, the cable tray units are distributed in the positions near the left end and near the right end of the conveyor cable tray. The cables and water pipes of the two coal mining machines are led out from a cable tray near the left end and near the right end, respectively, and connected to the electrical control box and water valve of the corresponding coal mining machine. When laying the cables and water pipes of three coal mining machines, the cable tray units are distributed in the middle, near the left end and near the right end of the conveyor cable tray. The cables and water pipes of the three coal mining machines are led out from a cable tray located in the middle, near the left end and near the right end, respectively, and connected to the electrical control box and water valve of the corresponding coal mining machine. When the front and rear half of the trough adopt the connection method three, the cables and water pipes of the three coal mining machines are laid separately in three of the four sub-spaces: front upper, rear upper, front lower, and rear lower. The cables and water pipes of the same equipment are laid side by side in the same sub-space. Alternatively, the cables and water pipes of the three coal mining machines and the cables and water pipes of the conveyor are laid separately in the four sub-spaces: front upper, rear upper, front lower, and rear lower. The cables and water pipes of the same equipment are laid side by side in the same sub-space. The cable tray units with wire-passing holes are distributed in the middle, near the left end, and near the right end of the conveyor cable tray. The cables and water pipes of the three coal mining machines are led out from a wire-passing hole located in the middle, near the left end, and near the right end, respectively, and connected to the electrical control box and water valve of the corresponding coal mining machine.
10. The pipeline layout of the coal mining machine as described in claim 8 or 9, characterized in that: The cables and water pipes of the same coal mining machine are introduced into the conveyor cable trough from the same end. The cables and water pipes of different coal mining machines are introduced into the conveyor cable trough from the same end. Alternatively, the cables and water pipes of some of the different coal mining machines are introduced into the conveyor cable trough from the same end, while the cables and water pipes of the remaining coal mining machines are introduced into the conveyor cable trough from the other end.