Belt conveyor head station for strip mine

Abstract

The utility model provides a belt conveyor head station for a strip mine. The machine head station comprises a main machine frame assembly, a front stand column, a rear stand column, an upper supporting beam, a front probing beam, a trolley transition beam, a trolley beam, a trolley supporting beam and the like which form a machine head supporting frame of the machine head station, a hopper assembly is arranged at the front end of the front probing beam, and a tensioning trolley is installed on the trolley transition beam and the trolley beam. A first platform and a second platform are arranged on the two sides of the front end of the main machine frame assembly, a hydraulic tensioning device assembly is placed on the first platform, a monitoring room is placed on the second platform, and a first driving installation frame and a second driving installation frame are arranged on the two sides of the rear end of the main machine frame assembly respectively. And a first driving device and a second driving device which are used for driving the transmission drum are respectively mounted on the first driving mounting frame and the second driving mounting frame. The machine head station provided by the utility model simultaneously provides the functions of driving, controlling, tensioning and unloading.

Description

Technical Field

[0001] The utility model relates to the field of mining; more specifically, the utility model relates to a belt conveyor head station for open-pit mines. Background Art

[0002] Belt conveyor systems currently play a key role in the semi-continuous production process of my country's open-pit coal mines. These systems, through their scientific integration with the crushing station and stope, form the basis of an efficient semi-continuous production system.

[0003] Semi-stationary belt conveyors, with their high performance, large capacity, long haul distances, superior maneuverability, and easy relocation, have become widely favored in large open-pit coal mines and open-pit coal yards. They also play a key role in other mining sectors, such as iron and copper mines. Currently, the availability of semi-stationary belt conveyors has, to a certain extent, limited the effective expansion of open-pit coal mine production capacity in my country. Furthermore, the design of the conveyor head station has become another key factor hindering the expansion of open-pit coal mine production capacity in my country. Utility Model Content

[0004] In view of this, the present invention provides a head station for a belt conveyor for open-pit mines, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a head station of a belt conveyor for open-pit mines, wherein the head station comprises:

[0006] A main frame assembly, the main frame assembly providing the base of the head station, a first platform and a second platform being provided on both sides of the front end of the main frame assembly, a hydraulic tensioning device assembly being placed on the first platform, a monitoring room being placed on the second platform, a first drive mounting frame and a second drive mounting frame being provided on both sides of the rear end of the main frame assembly, a first drive device and a second drive device for driving a transmission roller being mounted on the first drive mounting frame and the second drive mounting frame respectively;

[0007] A front column, the front column being vertically arranged at the front end of the main frame assembly;

[0008] a rear column, the rear column being vertically arranged at the rear end of the main frame assembly, and the top end of the front column being slightly higher than the top end of the rear column;

[0009] an upper support beam, wherein the front end and the rear end of the upper support beam are respectively fixed to the top end of the front column and the top end of the rear column;

[0010] A front exploration beam, the front exploration beam is located at an extended position of the front end of the upper support beam, and the rear end of the front exploration beam is fixed to the top end of the front column, and a hopper assembly is provided at the front end of the front exploration beam;

[0011] A trolley transition beam and a trolley beam, the tops of the trolley transition beam and the trolley beam are respectively provided with guide rails for guiding the tensioning trolley of the head station, the trolley transition beam and the trolley beam are connected to form a straight beam body and are located between the main frame assembly and the upper support beam, the front end of the trolley transition beam is connected to the rear end of the trolley beam, the rear end of the trolley transition beam is fixed to the rear column, and the front end of the trolley beam is fixed to the front column;

[0012] The trolley support beam is vertically arranged on the main frame assembly, and the lower end of the trolley support beam is fixed to the main frame assembly, and the upper end of the trolley support beam is connected to the connection between the trolley transition beam and the trolley beam.

[0013] Furthermore, the head station further comprises:

[0014] A front exploration beam support beam, wherein the lower end of the front exploration beam support beam is connected to the front end of the main frame assembly, and the upper end of the front exploration beam support beam is connected to the front end of the front exploration beam;

[0015] a center support beam, the lower end of which is connected to the main frame assembly, and the upper end of which is fixed to the front column at a position lower than the front end of the trolley beam;

[0016] A rear support frame, the lower end of which is connected to the lower end of the trolley support beam, and the upper end of which is fixed to the front column at a position lower than the rear end of the trolley transition beam.

[0017] In addition, the front column, the rear column, the upper support beam, the trolley transition beam, the trolley beam, the trolley support beam, the front probe beam support beam, the middle support beam, and the rear support frame are each provided on both sides of the main frame assembly, and a transverse support member and / or a cross support member is provided between each corresponding member on both sides.

[0018] In the head station of the open-pit mine belt conveyor as described above, optionally, a front sliding shoe and a rear sliding shoe are respectively provided on the front end bottom surface and the rear end bottom surface of the main frame assembly, and inclined guide surfaces are respectively formed at the front end, rear end and both sides of the front sliding shoe and the rear sliding shoe, and the inclined guide surfaces form an obtuse angle with the bottom surfaces of the front sliding shoe and the rear sliding shoe, respectively, and the obtuse angle is greater than 120 degrees.

[0019] In the open-pit mine belt conveyor head station as described above, optionally, the head station has a tensioning system, and the tensioning system includes:

[0020] a tensioning device, the tensioning device being arranged at a central position on an upper surface of the main frame assembly;

[0021] a first tensioning frame, the first tensioning frame being aligned with the front column and laterally centered on the upper surface of the main frame assembly, the first tensioning frame converting the tensioning rope from a horizontal axial direction to a horizontal lateral direction;

[0022] a second tensioning frame, the second tensioning frame being horizontally aligned with the first tensioning frame and being fixed to the outer side of the front upright post on the first side, the second tensioning frame converting the tensioning rope from a horizontal sideways direction to a vertical upward direction;

[0023] a third tensioning frame, the third tensioning frame being fixed to the outer side of the front upright column on the first side and vertically aligned with the second tensioning frame, and the third tensioning frame converting the tensioning rope from vertically upward to horizontally forward;

[0024] a fourth tensioning frame, the fourth tensioning frame being fixed to the front side of the front upright on the first side and being horizontally aligned with the third tensioning frame, and the fourth tensioning frame converting the tensioning rope from horizontal to forward toward the tensioning trolley;

[0025] A tensioning cylinder, located in front of the tensioning trolley, fixed to the front probe beam via a transverse support, and pulling and tensioning the tensioning rope relative to the tensioning trolley; and

[0026] A fifth tensioning frame, wherein the fourth tensioning frame is fixed to the rear side of the front column on the second side, and the end of the tensioning rope is fixed to the fifth tensioning frame.

[0027] In the head station of the open-pit mine belt conveyor as described above, optionally, an upper mounting frame is provided on the upper side of the front end of the front probe beam, and a lower mounting frame is provided on the lower side of the front end of the front probe beam, and a head guard frame is installed on the lower mounting frame, the upper section of the hopper assembly is fixed to the upper mounting frame, the middle section of the hopper assembly is fixed to the head guard frame, and a head pull beam is connected to the head guard frame at the top end of the upper mounting frame to hold the hopper assembly in place, the upper end of the head pull beam is connected to the top end of the upper mounting frame, and the lower end of the head pull beam is connected to the inner peripheral edge of the head guard frame in front of the hopper assembly, the vertical sections of the upper mounting frame and the lower mounting frame are both triangular, and the two adjacent surfaces are respectively fixed to the hopper assembly and the front probe beam.

[0028] In the open-pit mine belt conveyor head station as described above, optionally, a multi-stage sweeper is provided at the hopper assembly, and a hopper assembly adjustment device is installed at the head guard frame for adjusting the height of the lower section of the hopper assembly.

[0029] In the head station of the open-pit mine belt conveyor as described above, optionally, a drive roller, a first redirecting roller, and a second redirecting roller are provided at the head station, a tensioning roller is provided on the tensioning trolley, and a third redirecting roller is provided at the front end of the front probe beam. The drive roller and the second redirecting roller are located on the rear side of the rear column, the first redirecting roller is located on the front side of the rear column, the first redirecting roller is higher than the drive roller and lower than the second redirecting roller, the second redirecting roller is lower than the trolley transition beam, and the third redirecting roller is at least partially covered in the upper section of the hopper assembly.

[0030] In the open-pit mine belt conveyor head station as described above, optionally, the front end face of the trolley transition beam and the rear end face of the trolley beam are inclined planes with the same inclination angle, and the front end face of the trolley transition beam and the rear end face of the trolley beam are connected and a gap is reserved between the two. The trolley transition beam and the trolley beam are fixed by connecting plates located on both sides, and the connecting plates are attached to the front end of the trolley transition beam and the rear end of the trolley beam from the side and are fixed by bolts respectively.

[0031] In the open-pit mine belt conveyor head station as described above, optionally, the lower end of the center support beam is fixed to the main frame assembly at a position close to the rear ends of the first platform and the second platform, and the first platform, the second platform, the first drive mounting frame and the second drive mounting frame have a horizontal top surface and a bottom surface inclined upward toward both sides.

[0032] In the open-pit mine belt conveyor head station as described above, optionally, a first-layer maintenance guardrail assembly is provided at the trolley transition beam and the trolley beam, and a second-layer maintenance guardrail assembly is provided at the upper support beam, the first platform and the second platform are respectively connected to the first-layer maintenance guardrail assembly via a step ladder, the first-layer maintenance guardrail assembly is connected to the second-layer maintenance guardrail assembly via a step ladder, and the second-layer maintenance guardrail assembly is connected to the head guardrail frame via a step ladder.

[0033] In the open-pit mine belt conveyor head station as described above, optionally, the main frame assembly includes two side longitudinal beams and a load-bearing surface located between the two side longitudinal beams, and end trailers are respectively provided at the front and rear ends of the two side longitudinal beams, and side trailers are provided at both ends near the first platform, the second platform, the first drive mounting frame and the second drive mounting frame, and the side trailers are provided on the outside of the two side longitudinal beams.

[0034] The head station of the utility model provides the functions of driving, controlling, tensioning and unloading at the same time.

[0035] In a further technical solution, the head station of the utility model can be easily relocated. This feature not only significantly improves the installation efficiency of the belt conveyor, but also effectively reduces the cost of civil foundation construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The disclosure of the present invention will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings:

[0037] Figure 1 It is a three-dimensional schematic diagram of an embodiment of a head station of a belt conveyor for open-pit mines according to the utility model;

[0038] Figure 2 for Figure 1 Schematic side view of the head station of a belt conveyor used in a medium open pit mine;

[0039] Figure 3 for Figure 1 Schematic diagram of the overhead view of the head station of a belt conveyor used in a medium open pit mine;

[0040] Figure 4 for Figure 1 Schematic diagram of the head station of a belt conveyor used in a medium open pit mine from an upward perspective;

[0041] Figure 5 for Figure 1 A schematic diagram of the right side view of the head station of a belt conveyor for an open pit mine; and

[0042] Figure 6 for Figure 1 Schematic diagram of the winding of the tensioning rope of the head station of a belt conveyor used in an open-pit mine.

[0043] Figure markings: 1-head station; 2-main frame assembly; 3-front column; 4-rear column; 5-upper support beam; 6-front probe beam; 7-trolley transition beam; 8-trolley beam; 9-tensioning trolley; 10-trolley support beam; 11-front probe beam support beam; 12-middle support beam; 13-rear support frame; 14-cross support member; 15-cross support member; 16-first platform; 17-second platform; 18-first drive mounting frame; 19-second drive mounting frame; 20-drive roller; 21-first drive device; 22-second drive device; 23-front slide shoe; 24-rear slide shoe; 25-inclined guide surface; 26-tensioning device; 27-first tensioning frame; 28-tensioning rope; 29-second tensioning frame; 30-third tensioning frame ;31-fourth tensioning frame;32-tensioning cylinder;33-cross support;34-fifth tensioning frame;35-upper mounting frame;36-lower mounting frame;37-head guardrail;38-hopper assembly;39-head pulling beam;40-sweeper;41-connecting plate;42-hopper assembly adjustment device;43-upper section of hopper assembly;44-middle section of hopper assembly;45-lower section of hopper assembly;46-first floor maintenance guardrail assembly;47-second floor maintenance guardrail assembly;48-longitudinal beam;49-bearing surface;50-end trailer;51-side trailer;52-first redirecting roller;53-second redirecting roller;54-tensioning roller;55-third redirecting roller;56-conveyor belt;57-fixed pulley;58-movable pulley. DETAILED DESCRIPTION

[0044] With reference to the accompanying drawings and specific embodiments, the structure, composition, characteristics and advantages of the head station of the belt conveyor for open-pit mines of the present invention will be described below in an exemplary manner. However, all descriptions should not be used to form any limitation on the present invention.

[0045] For any single technical feature described or implied in the embodiments mentioned in this document, or any single technical feature shown or implied in the accompanying drawings, the present invention still allows for continued arbitrary combination or deletion between these technical features (or their equivalents) without any technical obstacles, and thus it should be considered that these more embodiments according to the present invention are also within the scope of the description in this document.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include at least one of these features.

[0047] Figure 1 It is a three-dimensional schematic diagram of an embodiment of a belt conveyor head station for open-pit mines according to the utility model. Figure 2 for Figure 1Schematic side view of the head station of a belt conveyor used in an open pit mine. Figure 3 for Figure 1 Schematic top view of the head station of a belt conveyor used in an open pit mine. Figure 4 for Figure 1 Schematic diagram of the head station of a belt conveyor used in an open-pit mine, viewed from above. Figure 5 for Figure 1 Schematic diagram of the right side view of the head station of a belt conveyor used in an open pit mine.

[0048] As shown in the figure, the open-pit mine belt conveyor head station 1, also known as the head drive station, can be set at the end of the open-pit coal mine belt conveyor. The head station 1 can be a movable type. Figure 2 and Figure 4 As can be seen, the head station 1 has front and rear sliding shoes 23 and 24, making it removable. This feature not only significantly improves the installation efficiency of the belt conveyor but also effectively reduces the cost of civil engineering foundation construction. For example, the head station 1 can be easily relocated by being towed by a bulldozer. During relocation, according to one example, the bulldozer can tow the end and / or side carriages of the head station 1 via ropes.

[0049] like Figure 1 and Figure 2 As shown in FIG, the head station 1 may include a main frame assembly 2, front columns 3, rear columns 4, upper support beams 5, front probe beams 6, and trolley transition beams 7 and trolley beams 8. These main frame assembly 2, front columns 3, rear columns 4, upper support beams 5, front probe beams 6, trolley transition beams 7 and trolley beams 8 constitute the head support frame of the head station 1. A conveyor belt 56 is located on top of the upper support beams 5 and front probe beams 6. At the front end of the front probe beam 6 is a hopper assembly 38 for unloading the ore conveyed by the conveyor belt 56.

[0050] In addition, especially in Figure 2 It is clearly shown in the figure that the head station 1 also includes a front probe beam support beam 11, a middle support beam 12, and a rear support frame 13. The front probe beam support beam 11 is used to support the front probe beam 6, the middle support beam 12 is used to support the front column 3, and the rear support frame 13 is used to support the rear column 4, which can stabilize the head support frame of the head station 1.

[0051] from Figure 1 It can be seen that the main frame assembly 2 provides a base for the head station 1, which enables the head station to be stably fixed in the required position, not only preventing the head station 1 from tipping over, but also enabling the driving, control, tensioning and unloading functions to operate effectively.

[0052] Combine Figure 1 、 Figure 2 and Figure 3 、 Figure 4As can be seen, a first platform 16 and a second platform 17 are provided on either side of the front end of the main frame assembly 2. The hydraulic tensioning device assembly can be placed on the first platform 16, and the monitoring room can be placed on the second platform 17. Furthermore, a first drive mounting frame 18 and a second drive mounting frame 19 are provided on either side of the rear end of the main frame assembly 2, respectively. The first and second drive mounting frames 18 and 19 can be mounted on the first and second drive mounting frames 18 and 19, respectively, for driving the transmission roller 20. This arrangement, with the first platform 16, the second platform 17, and the first and second drive mounting frames 18 and 19 positioned on either side of the main frame assembly 2, advantageously lowers the center of gravity of the entire head station 1, further effectively ensuring its stability.

[0053] Combine Figure 1 and Figure 2 It can be further clarified that in this embodiment, the front column 3 is vertically mounted on the front end of the main frame assembly 2, and the rear column 4 is vertically mounted on the rear end of the main frame assembly 2, with the top end of the front column 3 slightly higher than the top end of the rear column 4. The front and rear ends of the upper support beam 5 are respectively fixed to the top ends of the front column 3 and the rear end of the rear column 4. The front exploration beam 6 is located at an extension of the front end of the upper support beam 5, and the rear end of the front exploration beam 6 is fixed to the top end of the front column 3.

[0054] In addition, guide rails for guiding the tensioning trolley 9 of the headstock station 1 are provided on the tops of the trolley transition beam 7 and trolley beam 8, respectively. The trolley transition beam 7 and trolley beam 8 are connected to form a straight beam and are located between the mainframe assembly 2 and the upper support beam 5. The front end of the trolley transition beam 7 is connected to the rear end of the trolley beam 8, which is fixed to the rear column 4, while the front end of the trolley beam 8 is fixed to the front column 3. A trolley support beam 10 is vertically mounted on the mainframe assembly 2, with its lower end fixed to the mainframe assembly 2 and its upper end connected to the connection between the trolley transition beam 7 and trolley beam 8. The purpose of separating the trolley transition beam 7 and trolley beam 8 here is to facilitate the installation of the tensioning trolley 9. Specifically, the tensioning trolley 9 can be installed before the trolley beam 8 is installed. Specifically, the tensioning trolley 9 is first placed on the trolley transition beam 7, and then the trolley beam 8 is installed. After all the relevant parts of the tensioning trolley 9 are installed, the tensioning trolley 9 can be pushed to observe the coordination between the tensioning trolley 9 and the trolley transition beam 7 and the guide rails on the top of the trolley beam 8. The tensioning trolley is adjusted until it runs smoothly. In addition, the tensioning trolley is located under the conveyor belt, which lowers the center of gravity and is conducive to the stability of the overall structure of the head station.

[0055] Furthermore, as shown in the figure, the lower end of the front probe beam support beam 11 is connected to the front end of the main frame assembly 2, and the upper end of the front probe beam support beam 11 is connected to the front end of the front probe beam 6. The lower end of the middle support beam 12 is connected to the main frame assembly 2, and the upper end of the middle support beam 12 is fixed to the front column 3 at a position lower than the front end of the trolley beam 8. The lower end of the rear support frame 13 is connected to the lower end of the trolley support beam 10, and the upper end of the rear support frame 13 is fixed to the front column 3 at a position lower than the rear end of the trolley transition beam 7. In addition, the front column 3, the rear column 4, the upper support beam 5, the trolley transition beam 7, the trolley beam 8, the trolley support beam 10, the front probe beam support beam 11, the middle support beam 12, and the rear support frame 13 are each provided on both sides of the main frame assembly 2, and a cross support member 14 and / or a cross support member 15 are provided between each corresponding member on both sides.

[0056] A front shoe 23 and a rear shoe 24 are provided on the front and rear bottom surfaces of the main frame assembly 2, respectively. Inclined guide surfaces 25 are formed at the front and rear ends, as well as on both sides of the front and rear shoes 23, 24. These inclined guide surfaces 25 form an obtuse angle with the bottom surfaces of the front and rear shoes 23, 24, respectively. For example, the obtuse angle can be greater than 120 degrees. The provision of the inclined guide surfaces 25 facilitates easy relocation of the head station 1.

[0057] Combine Figure 1 and Figure 2 As can be seen, an upper mounting frame 35 is provided at the upper front end of the front probe beam 6, a lower mounting frame 36 is provided at the lower front end of the front probe beam 6, a head guard frame 37 is mounted on the lower mounting frame 36, and a hopper assembly 38 is provided at the front end of the front probe beam 6. The hopper assembly 38 consists of an upper section 43, a middle section 44, and a lower section 45. The upper section 43 of the hopper assembly 38 is fixed to the upper mounting frame 35, and the middle section 44 of the hopper assembly 38 is fixed to the head guard frame 37. A head pull beam 39 is connected to the head guard frame 37 from the top end of the upper mounting frame 35 to hold the hopper assembly 38 in place. The upper end of the head pull beam 39 is connected to the top end of the upper mounting frame 35, and the lower end of the head pull beam 39 is connected to the inner peripheral edge of the head guard frame 37 in front of the hopper assembly 38. The vertical cross-sections of the upper mounting frame 35 and the lower mounting frame 36 are both triangular, with the two adjacent faces fixed to the hopper assembly 38 and the front probe beam 6, respectively.

[0058] A multi-stage sweeper 40 may also be provided at the hopper assembly 38 for cleaning the interior of the hopper assembly 38. Additionally, a hopper assembly adjusting device 42 may also be provided at the head guard 37 for adjusting the height of the lower section 45 of the hopper assembly 38.

[0059] Combine Figure 2 and Figure 6The head station 1 is provided with a drive roller 20, a first redirecting roller 52, and a second redirecting roller 53. A tensioning roller 54 is provided on the tensioning trolley 9. A third redirecting roller 55 is provided at the front end of the front probe beam 6. The drive roller 20 and the second redirecting roller 53 are located on the rear side of the rear column 4, and the first redirecting roller 52 is located on the front side of the rear column 4. The first redirecting roller 52 is higher than the drive roller 20 and lower than the second redirecting roller 53. The second redirecting roller 53 is lower than the trolley transition beam 7. The third redirecting roller 55 is at least partially covered in the upper section of the hopper assembly 38. According to this arrangement, the drive roller 20, the first redirecting roller 52, and the second redirecting roller 53 are respectively lower than the trolley transition beam 7, and the tensioning roller 54 is lower than the upper support beam, thereby advantageously lowering the center of gravity of the entire head station 1 and effectively improving the overall stability of the head station 1.

[0060] The front end of the trolley transition beam 7 and the rear end of the trolley beam 8 are inclined surfaces with the same inclination angle. The front end of the trolley transition beam 7 and the rear end of the trolley beam 8 are connected with a gap between them. The trolley transition beam 7 and the trolley beam 8 are fixed together by connecting plates 41 on both sides. The connecting plates 41 are attached to the front end of the trolley transition beam 7 and the rear end of the trolley beam 8 from the side and are fixed with bolts. By designing the trolley transition beam 7 and the trolley beam 8 separately and modularly, it not only facilitates the transportation and assembly of the assembly parts, but also facilitates the installation of the tensioning trolley 9.

[0061] The lower end of the center support beam 12 is fixed to the main frame assembly 2 near the rear ends of the first and second platforms 16, 17. This arrangement forms a stable triangle with the front columns 3 and the main frame assembly 2, providing support for the front columns 3. As can be seen from the figure, the inclination of the center support beam 12 is opposite to that of the rear support beam 13, further stabilizing the support frame formed by the front and rear columns and the upper support beam.

[0062] In the illustrated example, the first platform 16, the second platform 17, the first drive mounting bracket 18, and the second drive mounting bracket 19 have horizontal top surfaces and bottom surfaces that are inclined upward toward both sides. Therefore, when the head station 1 is moved laterally, these bottom surfaces can serve as guides, which helps reduce resistance during the movement process.

[0063] from Figure 1 、 Figure 2It can be seen more clearly in the figure that a first-layer maintenance guardrail assembly 46 is installed at the trolley transition beam 7 and the trolley beam 8, and a second-layer maintenance guardrail assembly 47 is installed at the upper support beam 5. The first platform 16 and the second platform 17 are respectively connected to the first-layer maintenance guardrail assembly 46 by a step ladder, the first-layer maintenance guardrail assembly 46 is connected to the second-layer maintenance guardrail assembly 47 by a step ladder, and the second-layer maintenance guardrail assembly 47 is connected to the head guardrail 37 by a step ladder. This arrangement allows maintenance personnel to move conveniently between various facilities and perform maintenance work on the entire head station, including the upper support beam 5, the trolley transition beam 7, the trolley beam 8, the hopper assembly 38, etc.

[0064] like Figure 4 As shown in FIG, the main frame assembly 2 may include two side longitudinal beams 48 and a bearing surface 49 located between the two side longitudinal beams 48, and in combination with Figure 3 As can be seen, end brackets 50 are installed at the front and rear ends of the longitudinal beams 48 on both sides, respectively. Side brackets 51 are located near the ends of the first platform 16, second platform 17, first drive mounting frame 18, and second drive mounting frame 19. Side brackets 51 are installed outside the longitudinal beams 48 on both sides. These end brackets 50 and side brackets 51 can be used to tow the head station for relocation. The longitudinal beams 48, bearing surface 49, etc. form a unified chassis, and the center of gravity of the structure is lowered, making it more stable than a split chassis.

[0065] Figure 6 for Figure 1 Schematic diagram of the tension rope winding for the head station of a belt conveyor used in a medium-sized open-pit mine.

[0066] In the illustrated embodiment, the head station 1 may have Figure 6 . As can be seen from the figure, the tensioning system includes a tensioning device 26, a first tensioning frame 27, a second tensioning frame 29, a third tensioning frame 30, a fourth tensioning frame 31, a tensioning cylinder 32, and a fifth tensioning frame 34. As can be seen from the figure, fixed pulleys 57 are installed at the first tensioning frame 27, the second tensioning frame 29, the third tensioning frame 30, and the fourth tensioning frame 31; a movable pulley 58 is connected to the tensioning cylinder 32. The tensioning rope 28 passes around the movable pulley 58 and the fixed pulley 57.

[0067] Combine Figure 2 It can be seen that the tensioning device 26 is arranged in the center of the upper surface of the main frame assembly 2. Compared with placing the tensioning device on the top, it helps to lower the center of gravity of the head station, making the overall structure more stable.

[0068] The first tensioning frame 27 can be arranged on the upper surface of the main frame assembly 2 in a horizontally centered manner aligned with the front column 3. Figure 6As can be seen in the figure, the first tensioning frame 27 converts the tensioning rope 28 from a horizontal axial direction to a horizontal lateral direction; the second tensioning frame 29 is horizontally aligned with the first tensioning frame 27 and fixed to the outside of the first side front column, and the second tensioning frame 29 converts the tensioning rope 28 from a horizontal lateral direction to a vertical upward direction; the third tensioning frame 30 is fixed to the outside of the first side front column and vertically aligned with the second tensioning frame 29, and the third tensioning frame 30 converts the tensioning rope 28 from a vertical upward direction to a horizontal forward direction; the fourth tensioning frame 31 is fixed to the front side of the first side front column and horizontally aligned with the third tensioning frame 30, and the fourth tensioning frame 31 converts the tensioning rope 28 from a horizontal forward direction to the tensioning trolley 9. If necessary, the tensioning rope 28 can pass through the front column 3, etc.

[0069] The tensioning oil cylinder 32 is located in front of the tensioning trolley 9. Figure 2 and Figure 6 As shown in , the tensioning cylinder 32 is fixed to the front exploration beam 6 through the cross support 33, and the tensioning cylinder 32 pulls the tensioning rope 28 relative to the tensioning trolley 9. The fourth tensioning frame 34 is fixed to the rear side of the second side front column, and the end of the tensioning rope 28 is fixed to the fifth tensioning frame 34.

[0070] As previously mentioned, the head station of this application, as the core component of the belt conveyor, can be a sliding shoe type structure, capable of multiple functions such as driving, controlling, tensioning, and unloading. The head station can be easily moved by bulldozer towing, which not only significantly improves the installation efficiency of the belt conveyor but also effectively reduces the construction cost of the civil foundation.

[0071] The machine head station of this application can be composed of multiple key components, including a welded steel machine head support frame, a drive device, a tensioning roller, an unloading roller, a tensioning device, a sliding shoe support base, and a towing device. These components allow the machine head station's installation angle to be flexibly adjusted according to actual site conditions, ensuring that the sliding shoe maintains horizontal contact with the ground, thereby providing stable working conditions.

[0072] The tensioning device in this application uses an electric winch in conjunction with a mobile tensioning trolley for automatic tensioning. The conveyor belt tension is precisely calculated based on the tension applied during startup and normal operation. If a belt break occurs, the device automatically stops the conveyor and increases tension in the event of slippage, significantly improving the safety and stability of the belt conveyor.

[0073] The number of drive devices installed in the head drive part of the head station of the present application can be no more than four, ensuring that power is scientifically distributed and improving operating efficiency.

[0074] In addition, the head station can adopt centralized lubrication to achieve automatic lubrication of multiple points at one drive station, simplifying the maintenance process and improving equipment reliability.

[0075] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above implementation without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the scope of the present invention.

Claims

1. A belt conveyor head station (1) for open-pit mines, characterized in that: The head station (1) comprises: A main frame assembly (2), the main frame assembly (2) providing a base for the head station (1), a first platform (16) and a second platform (17) being provided on both sides of the front end of the main frame assembly (2), a hydraulic tensioning device assembly being placed on the first platform (16), a monitoring room being placed on the second platform (17), a first drive mounting frame (18) and a second drive mounting frame (19) being provided on both sides of the rear end of the main frame assembly (2), a first drive device (21) and a second drive device (22) for driving a transmission roller (20) being respectively installed on the first drive mounting frame (18) and the second drive mounting frame (19); A front column (3), the front column (3) being vertically arranged at the front end of the main frame assembly (2); A rear column (4), wherein the rear column (4) is vertically arranged at the rear end of the main frame assembly (2), and the top end of the front column (3) is slightly higher than the top end of the rear column (4); An upper support beam (5), wherein the front end and the rear end of the upper support beam (5) are respectively fixed to the top end of the front column (3) and the top end of the rear column (4); A front exploration beam (6), the front exploration beam (6) is located at an extended position of the front end of the upper support beam (5), and the rear end of the front exploration beam (6) is fixed to the top end of the front column (3), and a hopper assembly (38) is provided at the front end of the front exploration beam (6); A trolley transition beam (7) and a trolley beam (8), the tops of the trolley transition beam (7) and the trolley beam (8) are respectively provided with guide rails for guiding the tensioning trolley (9) of the head station (1), the trolley transition beam (7) and the trolley beam (8) are connected to form a straight beam body and are located between the main frame assembly (2) and the upper support beam (5), the front end of the trolley transition beam (7) is connected to the rear end of the trolley beam (8), the rear end of the trolley transition beam (7) is fixed to the rear column (4), and the front end of the trolley beam (8) is fixed to the front column (3); A trolley support beam (10), wherein the trolley support beam (10) is vertically arranged on the main frame assembly (2), and the lower end of the trolley support beam (10) is fixed to the main frame assembly (2), and the upper end of the trolley support beam (10) is connected to the connection between the trolley transition beam (7) and the trolley beam (8), Furthermore, the head station (1) further comprises: A front probe beam support beam (11), wherein the lower end of the front probe beam support beam (11) is connected to the front end of the main frame assembly (2), and the upper end of the front probe beam support beam (11) is connected to the front end of the front probe beam (6); a center support beam (12), the lower end of the center support beam (12) being connected to the main frame assembly (2), and the upper end of the center support beam (12) being fixed to the front column (3) at a position lower than the front end of the trolley beam (8); a rear support frame (13), the lower end of the rear support frame (13) being connected to the lower end of the trolley support beam (10), and the upper end of the rear support frame (13) being fixed to the front column (3) at a position lower than the rear end of the trolley transition beam (7), Furthermore, the front column (3), the rear column (4), the upper support beam (5), the trolley transition beam (7), the trolley beam (8), the trolley support beam (10), the front probe beam support beam (11), the middle support beam (12), and the rear support frame (13) are each provided on both sides of the main frame assembly (2), and a transverse support member (14) and / or a cross support member (15) are provided between each corresponding member on both sides.

2. The open-pit mine belt conveyor head station (1) according to claim 1, characterized in that: A front sliding shoe (23) and a rear sliding shoe (24) are respectively provided on the front end bottom surface and the rear end bottom surface of the main frame assembly (2), and inclined guide surfaces (25) are respectively formed at the front end, the rear end and both sides of the front sliding shoe (23) and the rear sliding shoe (24), and the inclined guide surfaces (25) form an obtuse angle with the bottom surfaces of the front sliding shoe (23) and the rear sliding shoe (24), respectively, and the obtuse angle is greater than 120 degrees.

3. The open-pit mine belt conveyor head station (1) according to claim 1, characterized in that: The head station (1) has a tensioning system, which includes: A tensioning device (26), the tensioning device (26) being arranged at a central position on the upper surface of the main frame assembly (2); a first tensioning frame (27), the first tensioning frame (27) being aligned with the front column (3) and arranged laterally and centrally on the upper surface of the main frame assembly (2), the first tensioning frame (27) converting the tensioning rope (28) from a horizontal axial direction to a horizontal lateral direction; a second tensioning frame (29), the second tensioning frame (29) being horizontally aligned with the first tensioning frame (27) and being fixed to the outer side of the front upright column on the first side, the second tensioning frame (29) converting the tensioning rope (28) from a horizontal side direction to a vertical upward direction; A third tensioning frame (30), the third tensioning frame (30) is fixed to the outer side of the front column on the first side, and the third tensioning frame (30) is vertically aligned with the second tensioning frame (29), and the third tensioning frame (30) converts the tensioning rope (28) from vertically upward to horizontally forward; a fourth tensioning frame (31), the fourth tensioning frame (31) being fixed to the front side of the front upright column on the first side, and the fourth tensioning frame (31) being horizontally aligned with the third tensioning frame (30), the fourth tensioning frame (31) converting the tensioning rope (28) from horizontally forward to toward the tensioning trolley (9); A tensioning oil cylinder (32), the tensioning oil cylinder (32) is located in front of the tensioning trolley (9), the tensioning oil cylinder (32) is fixed to the front exploration beam (6) via a transverse support (33), and the tensioning oil cylinder (32) pulls and tensions the tensioning rope (28) relative to the tensioning trolley (9); and A fifth tensioning frame (34) is fixed to the rear side of the front column on the second side, and the end of the tensioning rope (28) is fixed to the fifth tensioning frame (34).

4. The open-pit mine belt conveyor head station (1) according to claim 1, characterized in that: An upper mounting frame (35) is provided on the upper side of the front end of the front exploration beam (6), a lower mounting frame (36) is provided on the lower side of the front end of the front exploration beam (6), a machine head guard frame (37) is installed on the lower mounting frame (36), an upper section (43) of the hopper assembly (38) is fixed to the upper mounting frame (35), a middle section (44) of the hopper assembly (38) is fixed to the machine head guard frame (37), and a top end of the upper mounting frame (35) is connected to the machine head guard frame (37). The head pull beam (39) holds the hopper assembly (38) in place, the upper end of the head pull beam (39) is connected to the top end of the upper mounting frame (35), and the lower end of the head pull beam (39) is connected to the inner peripheral edge of the head guard frame (37) in front of the hopper assembly (38). The vertical cross-sections of the upper mounting frame (35) and the lower mounting frame (36) are both triangular, and the two adjacent faces are respectively fixed to the hopper assembly (38) and the front probe beam (6).

5. The open-pit mine belt conveyor head station (1) according to claim 4, characterized in that: A multi-stage sweeper (40) is provided at the hopper assembly (38), and a hopper assembly adjustment device (42) is installed at the head guard (37) for adjusting the height of the lower section (45) of the hopper assembly (38).

6. The open-pit mine belt conveyor head station (1) according to claim 4, characterized in that: The head station (1) is provided with a transmission roller (20), a first redirecting roller (52), and a second redirecting roller (53); a tensioning roller (54) is provided on the tensioning trolley (9); and a third redirecting roller (55) is provided at the front end of the front probe beam (6). The transmission roller (20) and the second redirecting roller (53) are located on the rear side of the rear column (4); the first redirecting roller (52) is located on the front side of the rear column (4); the first redirecting roller (52) is higher than the transmission roller (20) and lower than the second redirecting roller (53); the second redirecting roller (53) is lower than the trolley transition beam (7); and the third redirecting roller (55) is at least partially covered in the upper section of the hopper assembly (38).

7. The open-pit mine belt conveyor head station (1) according to claim 1, characterized in that: The front end face of the trolley transition beam (7) and the rear end face of the trolley beam (8) are inclined surfaces with the same inclination angle, and the front end face of the trolley transition beam (7) and the rear end face of the trolley beam (8) are connected with each other and a gap is reserved between the two. The trolley transition beam (7) and the trolley beam (8) are fixed by connecting plates (41) located on both sides. The connecting plates (41) are attached to the front end of the trolley transition beam (7) and the rear end of the trolley beam (8) from the side and are fixed respectively by bolts.

8. The open-pit mine belt conveyor head station (1) according to any one of claims 1 to 7, characterized in that: The lower end of the center support beam (12) is fixed to the main frame assembly (2) at a position close to the rear ends of the first platform (16) and the second platform (17), and the first platform (16), the second platform (17), the first drive mounting frame (18) and the second drive mounting frame (19) have a horizontal top surface and a bottom surface inclined upward toward both sides.

9. The open-pit mine belt conveyor head station (1) according to any one of claims 4 to 6, characterized in that: A first-layer maintenance guardrail assembly (46) is provided at the trolley transition beam (7) and the trolley beam (8), and a second-layer maintenance guardrail assembly (47) is provided at the upper support beam (5). The first platform (16) and the second platform (17) are respectively connected to the first-layer maintenance guardrail assembly (46) through a step ladder, the first-layer maintenance guardrail assembly (46) is connected to the second-layer maintenance guardrail assembly (47) through a step ladder, and the second-layer maintenance guardrail assembly (47) is connected to the machine head guardrail (37) through a step ladder.

10. The open-pit mine belt conveyor head station (1) according to claim 8, characterized in that: The main frame assembly (2) includes two side longitudinal beams (48) and a bearing surface (49) located between the two side longitudinal beams (48), and end trailers (50) are respectively provided at the front and rear ends of the two side longitudinal beams (48), and side trailers (51) are provided at both ends close to the first platform (16), the second platform (17), the first drive mounting frame (18) and the second drive mounting frame (19), and the side trailers (51) are provided on the outside of the two side longitudinal beams (48).

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