Opencast coal mine conveying belt tension adjusting device

Abstract

The utility model relates to an open pit coal mine conveying belt tension adjusting device. The device comprises a telescopic rod, a tensioning assembly and a cleaning assembly, the tensioning assembly comprises an adjusting frame, a support and a tensioning roller, the adjusting frame is fixedly connected to the top of the telescopic rod, the detachable support is installed on the adjusting frame, and the tensioning roller is rotationally installed on the support; the cleaning assembly comprises a scraping plate and a lead screw, the lead screw is connected to the support through threads, and the scraping plate is installed at the top of the lead screw; the conveying belt penetrates through the space between the tensioning roller and the scraper, the conveying face of the conveying belt faces the scraper, and the back face of the conveying belt makes contact with the tensioning roller. According to the scheme, the tensioning roller can be rapidly disassembled and assembled, the overhauling efficiency is improved, the tensioning roller can be prevented from extruding coal cinder, and the cleaning assembly can conveniently clean the coal cinder.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine conveying, in particular to an open coal mine conveying belt tension adjusting device. BACKGROUND

[0002] The open coal mine refers to the coal layer deposited on the ground or shallow layer, which is mined by the open mining method. In the mining process, the conveying device plays an important role, but after long time use, the conveying belt will appear slack phenomenon due to factors such as pulling and wear, which affects the normal conveying of the coal mine.

[0003] In order to ensure normal conveying, the tension adjusting device is usually used to adjust the belt tension, but in the prior art, the tensioning roller of the belt tension adjusting device is connected with the device body by bolts, and when the adjusting roller is overhauled, the bolts need to be removed one by one, and then the adjusting roller can be removed, which is time-consuming and complicated in operation process, and affects the efficiency of the overhaul.

[0004] In addition, in order to avoid spontaneous combustion during the conveying of the coal mine, the coal mine is usually watered to keep the coal mine in a wet state, and a large amount of coal slag will be generated due to the mutual extrusion and collision between the coal mines during the conveying process. The current tensioning mode is usually to press the conveying belt inward, and such setting will cause the extrusion of the wet coal slag by the tensioning roller, which is easy to cause the coal slag to be hardened on the conveying belt, increasing the cleaning difficulty. CONTENT OF THE INVENTION

[0005] In order to solve or partially solve the problems in the related art, the present application provides an open coal mine conveying belt tension adjusting device, which can quickly disassemble and assemble the tensioning roller, improve the maintenance efficiency, and avoid the extrusion of the coal slag by the tensioning roller, so that the cleaning assembly can clean the coal slag.

[0006] The present application provides an open coal mine conveying belt tension adjusting device, which comprises:

[0007] The telescopic rod;

[0008] The tensioning assembly comprises an adjusting frame, a support and a tensioning roller, the adjusting frame is fixedly connected at the top of the telescopic rod, and the detachable support is installed on the adjusting frame, and the tensioning roller is rotatably installed on the support;

[0009] The cleaning assembly comprises a scraper and a lead screw, the lead screw is connected at the support through the thread, and the scraper is installed at the top of the lead screw;

[0010] The conveying belt passes between the tensioning roller and the scraper, and the conveying surface of the conveying belt faces the scraper, and the back surface contacts the tensioning roller.

[0011] Optionally, in some embodiments, the two ends of the adjusting frame are provided with connecting seats, and a clamping hole is formed in the side wall of the connecting seat; the two ends of the support are provided with connecting blocks corresponding to the connecting seats, and a clamping block is arranged on the side of the connecting block and can be pressed, and the clamping block is clamped in the clamping hole.

[0012] Optionally, in some embodiments, a groove is formed in the side of the connecting block, a hollow column is fixedly connected in the groove, a sliding rod is slidably connected in the hollow column, and a clamping block is fixedly connected at the end of the sliding rod; a spring is further arranged in the hollow column, and under the action of the elastic force, the sliding rod is always in the maximum elongation, thereby lifting the clamping block.

[0013] Optionally, in some embodiments, a threaded hole is formed at the middle position of the adjusting frame, a lead screw is threadedly connected at the threaded hole, and a scraper is rotatably arranged at the top end of the lead screw.

[0014] Optionally, in some embodiments, a guide hole is further formed in the adjusting frame, a guide rod parallel to the lead screw is fixedly connected to the scraper, and the guide rod is slidably connected in the guide hole.

[0015] Optionally, in some embodiments, a clamping ring is fixedly connected to the support, and the top end of the lead screw is fixedly connected with a clamping ring, and the clamping ring is rotatably connected in the clamping ring.

[0016] Optionally, in some embodiments, the top of the scraper is in the shape of a sharp head.

[0017] The technical scheme provided in the application can have the following beneficial effects:

[0018] The height position of the tensioning roller can be adjusted by the telescopic rod, so as to adapt to different tensioning requirements; the tensioning roller is arranged on the back of the conveying belt, so as to avoid extrusion on the coal cinder and facilitate cleaning of the cleaning assembly; the tensioning roller is designed as a quick release type, so as to facilitate maintenance of the tensioning roller and improve the efficiency of maintenance.

[0019] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which similar reference characters refer to similar elements throughout the several views, and in which:

[0021] Figure 1 It is a schematic diagram of the overall structure of the application.

[0022] Figure 2 It is a schematic diagram of the local structure of the application.

[0023] Figure 3 Structure diagram of the adjusting roller of the present application.

[0024] Figure 4 Structure diagram of the adjusting roller of the present application.

[0025] Figure 5 Structure diagram of the adjusting frame of the present application.

[0026] Figure 6 Structure diagram of the scraper of the present application.

[0027] In the figure: 1 - base; 2 - support rod; 3 - belt conveyor; 4 - conveying belt; 5 - telescopic rod; 6 - adjusting frame; 7 - connecting seat; 8 - clamping hole; 9 - connecting block; 10 - support; 11 - tensioning roller; 12 - hollow column; 13 - spring; 14 - sliding block; 15 - sliding rod; 16 - clamping block; 17 - threaded hole; 18 - guide hole; 19 - guide rod; 20 - scraper; 21 - clamping ring; 22 - clamping ring; 23 - screw rod. DETAILED DESCRIPTION

[0028] Embodiments of the present application will be described in more detail by referring to the attached drawings. Although embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0029] It should be understood that although the terms "first", "second", "third", etc. are used to describe various information in the present application, these information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0030] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0031] Unless otherwise defined, the terms "mounting", "connected", "connecting", "fixed", and the like are to be construed in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0032] Reference Figures 1-6 , the belt conveyor 3 is prior art, the bottom is usually provided with a support rod 2, and the support rod 2 is connected to the base 1, and the base 1 is fixed to the ground by screws, so as to ensure the stability of the belt conveyor 3.

[0033] A tension adjusting device for a belt conveyor in an open coal mine, comprising:

[0034] The telescopic rod 5, see Figure 1 , the telescopic rod 5 is fixed to the base 1 in the vertical direction, and the fixed position can be adjusted according to requirements. The telescopic rod 5 can be a hydraulic rod or an electric telescopic rod. The number of telescopic rods 5 can also be increased or decreased according to requirements. In this embodiment, two telescopic rods 5 are symmetrically arranged.

[0035] The tensioning assembly, see Figure 2 , the tensioning assembly comprises an adjusting frame 6, a support 10 and a tensioning roller 11. The adjusting frame 6 is fixed between the two telescopic rods 5, and the detachable support 10 is installed on the adjusting frame 6. The tensioning roller 11 is rotatably installed on the support 10.

[0036] The specific installation mode is shown in Figure 3 、 Figure 5 , the connecting seat 7 is fixedly arranged at the left and right ends of the adjusting frame 6, and the connecting seat 7 is in the form of a square box, and a clamping hole 8 is formed in the side wall of the connecting seat 7. Correspondingly, the connecting block 9 corresponding to the connecting seat 7 is fixedly arranged at the left and right ends of the bottom of the support 10, and the connecting block 9 is in the form of a square, and the size of the connecting block 9 matches the size of the connecting seat 7. A clamping block 16 is arranged on the side surface of the connecting block 9. In use, the clamping block 16 is pressed to retract into the connecting block 9, and then the connecting block 9 is inserted into the connecting seat 7. When the clamping block 16 is aligned with the clamping hole 8, the clamping block 16 will pop out again, thereby fixing the support 10. When the support 10 needs to be disassembled, the clamping block 16 is pressed to retract into the connecting block 9, and then the support 10 can be removed, which is convenient and fast.

[0037] Further, see Figure 4A groove is formed on the side of the connecting block 9, a hollow column 12 is fixedly connected in the groove in the transverse direction, a sliding block 14 is slidingly connected in the hollow column 12, a sliding rod 15 is fixedly connected to the sliding block 14, the sliding rod 15 extends from the end of the hollow column 12, a clamping block 16 is fixedly connected to the end of the sliding rod 15, the sliding range of the sliding rod 15 can be limited by the sliding block 14, so as to avoid the sliding rod 15 from being separated from the hollow column 12; a spring 13 is further arranged in the hollow column 12, the spring 13 is always in a compressed state, under the action of the elastic force, the sliding block 14 is tightly pressed, so that the sliding rod is always in the maximum elongation, thereby the clamping block 16 is lifted. When the clamping block 16 is pressed by an external force during use, the spring 13 is compressed, so that the clamping block 16 is folded into the groove, thereby facilitating the disassembly and assembly of the support 10.

[0038] The cleaning assembly, see Figure 5 、 Figure 6 The cleaning assembly comprises a scraper 20 and a lead screw 23, a threaded hole 17 is formed at the middle position of the adjusting frame 6, the lead screw 23 is threadedly connected at the threaded hole 17, the lead screw 23 can be lifted and lowered by rotating the lead screw 23, and the scraper 20 is rotatably installed at the top end of the lead screw 23. Specifically, a clamping ring 21 is fixedly connected to the support 10, a clamping ring 22 is fixedly connected to the top end of the lead screw 23, the sizes of the clamping ring 21 and the clamping ring 22 are matched with each other, and the clamping ring 22 is rotatably connected in the clamping ring 21, so that the lead screw 23 can drive the scraper 20 to lift and lower together when the lead screw 23 is lifted and lowered.

[0039] Further, in order to ensure the stability of the scraper 20 when the lead screw 23 is rotated, a guide hole 18 is further formed on the adjusting frame 6, a guide rod 19 parallel to the lead screw 23 is fixedly connected to the scraper 20, and the guide rod 19 is slidingly connected in the guide hole 18. Through the constraint of the guide hole 18, the scraper 20 can only move up and down, and cannot rotate, thereby ensuring the stability of the scraper 20.

[0040] It should be noted that the conveying belt 4 passes between the tensioning roller 11 and the scraper 20, so that the conveying surface of the conveying belt 4 faces the scraper 20, and the back surface contacts the tensioning roller 11, thereby avoiding that the tensioning roller 11 extrudes the cinder, and causes the cinder to be hardened on the conveying belt 4. Further, the top of the scraper 20 is designed as a sharp head, which can improve the adhesion of the scraper 20 to the conveying belt 4, thereby improving the cleaning effect.

[0041] Specific working process:

[0042] After the bracket 10 is installed on the adjusting frame 6, the tensioning roller 11 is lowered and abuts against the conveying belt 4 by controlling the telescopic rod 5 to shorten, so that the tensioning is completed; when the conveying belt 4 needs to be cleaned, the scraper 20 is lifted and contacts the conveying belt 4 by rotating the screw rod 23, so that the adhering matters can be scraped and cleaned by the scraper 20 when the conveying belt 4 runs; when the tensioning roller 11 needs to be disassembled for maintenance, the telescopic rod 5 is controlled to lengthen, so that the tensioning roller 11 is separated from the conveying belt 4, and then the clamping block 16 is pressed, so that the tensioning roller 11 can be taken down conveniently and quickly.

[0043] Finally, it should be noted that in this document, relationships such as first and second, and the like, are merely used to distinguish one entity or action from another, and do not require or imply any actual relationship or order between or among such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0044] The embodiments of the application have been described above, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical application or improvement of the technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. A tension regulating device for an open-pit coal mine conveyor belt, characterized in that: include Telescopic pole (5); The tensioning assembly includes an adjusting frame (6), a bracket (10), and a tensioning roller (11). The adjusting frame (6) is fixed to the top of the telescopic rod (5), and a detachable bracket (10) is installed on the adjusting frame (6). The tensioning roller (11) is rotatably installed on the bracket (10). The cleaning assembly includes a scraper (20) and a lead screw (23), the lead screw (23) being threadedly connected to the bracket (10), and the scraper (20) being mounted on the top of the lead screw (23). The conveyor belt (4) passes between the tension roller (11) and the scraper (20), with the conveying surface of the conveyor belt (4) facing the scraper (20) and its back contacting the tension roller (11).

2. The tension regulating device for open-pit coal mine conveyor belts according to claim 1, characterized in that: Both ends of the adjustment frame (6) are provided with connecting seats (7), and the side walls of the connecting seats (7) are provided with locking holes (8); both ends of the bracket (10) are provided with connecting blocks (9) corresponding to the connecting seats (7), and the side of the connecting blocks (9) is provided with pressable locking blocks (16), which are engaged in the locking holes (8).

3. The tension regulating device for open-pit coal mine conveyor belts according to claim 2, characterized in that: The connecting block (9) has a groove on its side, and a hollow column (12) is fixedly connected in the groove. A sliding rod (15) is slidably connected in the hollow column (12), and a locking block (16) is fixedly connected to the end of the sliding rod (15). A spring (13) is also provided in the hollow column (12). Under the action of the elastic force, the sliding rod (15) is always at its maximum elongation, thereby lifting the locking block (16).

4. The tension regulating device for open-pit coal mine conveyor belts according to claim 1, characterized in that: The adjusting frame (6) has a threaded hole (17) in the middle position. The lead screw (23) is connected to the threaded hole (17) by thread, and a scraper (20) is rotatably installed on the top of the lead screw (23).

5. The tension regulating device for open-pit coal mine conveyor belts according to claim 4, characterized in that: The adjusting frame (6) also has a guide hole (18), and a guide rod (19) parallel to the lead screw (23) is fixedly connected to the scraper (20). The guide rod (19) is slidably connected to the guide hole (18).

6. The tension regulating device for open-pit coal mine conveyor belts according to claim 5, characterized in that: A retaining ring (21) is fixedly connected to the bracket (10), and a retaining ring (22) is fixedly connected to the top of the lead screw (23). The retaining ring (22) is rotatably connected inside the retaining ring (21).

7. The tension regulating device for open-pit coal mine conveyor belts according to claim 1, characterized in that: The scraper (20) has a pointed top.

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