A straightening device for coal mine waste anchor rod

Abstract

The application belongs to the technical field of anchor rod straightening, and discloses a device for straightening waste anchor rods in coal mines, which comprises a chassis, a rack arranged on the chassis, a straightening mechanism arranged on the rack and used for straightening anchor rods, an import rack and an export rack fixedly connected to the two sides of the rack respectively, a processing device arranged on the import rack, the processing device comprising a plurality of rotating cylinders rotatably connected to the import rack, a mounting cylinder mounted on the rotating cylinder, a plurality of sliding blocks slidably connected to the mounting cylinder, and brush hairs fixed to the sliding blocks, the processing device further comprising an adjusting assembly used for controlling the movement of the plurality of sliding blocks, a control assembly used for driving the mounting cylinder to rotate during straightening, and a collecting assembly used for collecting impurities after cleaning. The device can remove hard impurities on the surface of the anchor rod before straightening, prevent the impurities from being pressed into the anchor rod body during the straightening and extruding process to cause scratches and indentation damage, and avoid the impurities from entering the straightening roller part, thereby reducing the wear of the pressure roller and other components.

Description

Technical Field

[0001] This invention relates to the field of anchor bolt straightening technology, and in particular to a device for straightening scrap anchor bolts in coal mines. Background Technology

[0002] With the continuous increase in coal mining depth and the increasingly complex mining conditions, the costs of mine production tunneling and roadway support operations have been rising year by year. Mining enterprises are under increasing pressure to reduce costs, increase efficiency, and pursue green production. Among these, anchor bolts are a core consumable material for coal mine roadway support. During the completion of longwall mining, roadway scrapping, and repair operations, a large number of used anchor bolts and supporting materials such as pallets can be recovered. Due to factors such as complex underground geological conditions, roadway surrounding rock pressure, and mining disturbances, most of the recovered anchor bolts exhibit varying degrees of bending and deformation.

[0003] In existing technologies, straightening devices are often used to squeeze anchor bolts by upper and lower straightening rollers, and to straighten and repair recycled anchor bolts in batches. The repaired anchor bolts can then be applied to scenarios with short service periods, such as roadway support, foundation pouring and rebar installation, and roadway ventilation and water pipeline hanging bracket fixation, replacing brand new anchor bolts and effectively reducing the cost of purchasing anchor bolts in mines.

[0004] However, the surface of recycled waste anchor rods is often covered with impurities such as coal slime, rock powder, and rust debris. When these impurities are directly fed into the straightening mechanism for compression straightening without being cleaned, they will be squeezed into the surface of the anchor rod, easily causing scratches, indentations, and local damage to the rod, thus destroying the original mechanical properties of the anchor rod. This not only reduces the reliability of the repaired anchor rod, but in severe cases, it may also cause the repaired anchor rod to fail to meet the safety requirements for underground support. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a device for straightening scrap anchor bolts in coal mines.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a straightening device for waste anchor bolts in coal mines, comprising a base frame, a machine frame on the base frame, a straightening mechanism for straightening anchor bolts on the machine frame, an inlet frame and an outlet frame fixedly connected to both sides of the machine frame, a processing device on the inlet frame, the processing device comprising multiple rotating cylinders rotatably connected to the inlet frame, an installation cylinder mounted on the rotating cylinder, multiple sliders slidably connected to the installation cylinder, and bristles fixed on the sliders, the processing device further comprising an adjustment component for controlling the movement of the multiple sliders, a control component for driving the installation cylinder to rotate during straightening, and a collection component for collecting impurities after cleaning.

[0007] By adopting the above technical solution, multiple holes on the surfaces of the inlet and outlet frames are adapted to anchor bolts of different diameters. During use, the waste anchor bolts to be processed are fed into the device through the inlet frame. The anchor bolts first undergo surface cleaning in the processing device, and then enter the straightening mechanism for straightening. After straightening, the anchor bolts are finally output from the outlet frame. When the anchor bolts enter the inlet frame area, they sequentially pass through the internal cavities of the installation cylinder and the rotating cylinder. The control component drives the installation cylinder and the rotating cylinder to rotate synchronously. The installation cylinder drives the sliders and the brushes fixed on the sliders to rotate together. The rotating brushes contact and rub against the outer wall of the anchor bolt, removing impurities such as coal slime, rock powder, and rust debris adhering to the anchor bolt surface. Scraping and cleaning: All kinds of debris that fall off are collected by the collection component to prevent them from scattering inside the equipment and entering the straightening mechanism, causing scratches on the rod or aggravating wear on equipment parts. During operation, the operator can adjust the slider driven by the adjustment component to slide along the mounting cylinder, thereby changing the extension position of the slider and the bristles, and thus flexibly adjusting the contact pressure between the bristles and the anchor rod to adapt to waste anchor rods of different diameters. At the same time, the bristles of the corresponding material can be selected according to the type and adhesion of the impurities on the anchor rod surface, so as to adapt to the cleaning needs of different working conditions, ensure the cleaning effect on the surface of the anchor rod, reduce the residue of hard impurities, and reduce the risk of impurities squeezing and damaging the anchor rod in subsequent straightening processes.

[0008] Furthermore, the straightening mechanism includes two sets of bearing seats I installed in the frame, two sets of bearing seats II set in the frame, two lower pressure rollers that are rotatably connected to a corresponding set of bearing seats I and have multiple pressure grooves of different sizes on their surfaces, two upper pressure rollers that are rotatably connected to a corresponding set of bearing seats II and have multiple pressure grooves of different sizes on their surfaces, and an adjusting screw that is rotatably connected to bearing seats II and threadedly connected to the frame. The straightening mechanism also includes a drive assembly for controlling the rotation of the lower pressure rollers and upper pressure rollers.

[0009] By adopting the above technical solution, during the operation, the pre-treated and cleaned waste anchor rods are transported into the straightening mechanism. The drive component drives the corresponding upper and lower pressure rollers to rotate synchronously in opposite directions. The waste anchor rods are automatically and continuously fed and transported by the friction between the pressure grooves at the corresponding positions and the anchor rod body. There is no need for manual material pushing, which greatly reduces the labor intensity and improves the automation level of the operation. At the same time, the device adopts a dual-station straightening structure with two sets of paired upper and lower pressure rollers. The waste anchor rods can pass through the two straightening stations at one time. Through multi-position and multi-section extrusion straightening, the bending and deformation parts of the anchor rod body are accurately corrected. This effectively improves the problem of incomplete straightening and poor straightening accuracy in a single straightening operation. The entire anchor rod can be straightened in one go, which greatly improves the straightening efficiency and straightening quality of the waste anchor rods.

[0010] Furthermore, the drive assembly includes a gearbox and a motor mounted on the base frame, two gears fixedly sleeved on corresponding lower pressure rollers, two gears fixedly sleeved on corresponding upper pressure rollers and meshing with corresponding gears, two sprockets fixedly sleeved on corresponding lower pressure rollers, and a chain meshing with the two sprockets. The output end of the motor is fixedly connected to the input end of the gearbox, and the output end of the gearbox is fixedly connected to one of the lower pressure rollers.

[0011] By adopting the above technical solution, when the equipment is working, the motor is started, and the motor output power is reduced and increased in torque by the reduction gearbox to drive the connected lower pressure roller to rotate. At the same time, the lower pressure roller drives another set of lower pressure rollers to rotate synchronously in the same direction through the meshing transmission of the sprocket and chain. At the same time, the gear one on the two lower pressure rollers rotates with the roller body and meshes with the corresponding gear two to drive them to rotate in the opposite direction, thereby driving the two upper pressure rollers and the corresponding lower pressure rollers to form a state of opposite rotation. Relying on the counter-rotation friction of the upper and lower rollers, the waste anchor rod is fed at a uniform speed. At the same time, the straightening operation of the anchor rod is completed in conjunction with the squeezing action of the roller body. The overall transmission structure has strong linkage and stable operation, which can ensure the continuous and stable straightening of the anchor rod.

[0012] Furthermore, the adjustment assembly includes a rotating ring rotatably connected to the mounting cylinder and having multiple arc-shaped holes on its surface, a protruding rod fixed to the slider and slidingly engaged with the arc-shaped holes, a worm wheel fixed to the rotating ring, a worm rotatably connected to the mounting cylinder and meshing with the worm wheel, and two control heads respectively fixedly connected to both ends of the worm.

[0013] By adopting the above technical solution, during actual adjustment operations, the operator can rotate the control head to drive the worm to rotate synchronously. Utilizing the meshing transmission characteristics of the worm and worm wheel, the worm wheel and rotating ring are driven to rotate as a whole. During the rotation of the rotating ring, the arc-shaped hole on its surface will generate a lateral thrust on the interlocking convex rod, thereby pushing the convex rod and the slider to move smoothly inside the mounting cylinder. Ultimately, this achieves precise adjustment of the working position of the slider and brush bristles. It can be adapted to the cleaning position according to the specifications of the waste anchor rod, with strong adaptability and convenient and precise adjustment operation.

[0014] Furthermore, the adjustment assembly also includes multiple guide rods respectively fixed on both sides of the slider, and the surface of the mounting cylinder is provided with guide holes, and the guide rods slide in cooperation with the guide holes.

[0015] By adopting the above technical solution, the guide rod and guide hole can further improve the stability of the slider during movement.

[0016] Furthermore, the control component includes a gear three fixedly mounted on the mounting cylinder, multiple gear fours rotatably connected to the guide frame and meshing with the gear three, a synchronous pulley one fixedly mounted on the gear four, a synchronous pulley two fixedly mounted on the motor output end, and a synchronous belt meshing with the synchronous pulley one and the synchronous pulley two.

[0017] By adopting the above technical solution, when the device carries out anchor bolt straightening operations, the motor drives the straightening mechanism to run, and its output end can drive the synchronous pulley two to rotate synchronously. The synchronous pulley two drives multiple synchronous pulleys one to run synchronously through the meshing transmission of the synchronous belt, so that each gear four rotates synchronously. By utilizing the meshing cooperation between gear four and gear three, gear three drives the installation cylinder and the internal rotating ring to rotate as a whole, thereby driving the brush bristles on the installation cylinder to rotate synchronously. During the anchor bolt feeding and straightening process, the rust, slag and other impurities on the surface of the anchor bolt are rotated and cleaned, realizing the simultaneous operation of straightening and cleaning. There is no need to add additional drive equipment. The structure has a high degree of integration, is energy-saving and efficient, and effectively improves the pre-treatment and cleaning effect of waste anchor bolts.

[0018] Furthermore, the control assembly also includes multiple sets of slides slidably connected to the guide frame, tensioning wheels rotatably connected to the slides, and multiple bidirectional screws rotatably connected to the guide frame and threadedly connected to each set of slides, with two slides in each set.

[0019] By adopting the above technical solution, operators can drive two slide blocks in the same group to slide synchronously relative to each other or in opposite directions by rotating the bidirectional screw and utilizing its positive and negative thread structure. During the movement of the slide blocks, the tensioning wheel moves synchronously, pressing the tensioning wheel against the synchronous belt. This allows for real-time adjustment of the synchronous belt tension, effectively avoiding problems such as synchronous belt slippage and transmission failure. It ensures that the synchronous belt and each synchronous pulley one and synchronous pulley two always maintain a good meshing transmission state, ensuring stable operation and precise transmission of the cleaning drive structure.

[0020] Furthermore, the collection assembly includes a fixed frame mounted on the inlet frame, multiple collection covers fixed on the fixed frame, a collection pipe fixedly connected to the collection cover, a valve fixedly connected to the other end of the collection pipe, a box mounted on the base frame, a filter box inserted into the box and locked with bolts, and a suction machine mounted on the box and connected to the box at its input end. The other end of the valve is fixedly connected to the box, and the mounting cylinder is located inside the collection cover.

[0021] By adopting the above technical solution, during the anchor bolt straightening and cleaning operation, the valve on the collection pipe of the corresponding work station can be opened according to the actual working conditions, and the suction machine can be started to create a negative pressure environment inside the box. Dust, rust debris, coal slag and other impurities generated during the anchor bolt cleaning process are collected and gathered by the collection hood under the action of negative pressure suction, and are introduced into the box along the collection pipe and valve. The impurities entering the box are intercepted and collected in the filter box, and the clean airflow is discharged by the suction machine, which effectively realizes the centralized collection and treatment of operational impurities, avoids dust from scattering and polluting the working environment, and facilitates the unified cleaning of impurities in the later stage. The overall structure is simple, the dust collection effect is good, and the environmental protection and cleanliness of the equipment operation are effectively improved.

[0022] Furthermore, the inlet of the collection hood is cone-shaped.

[0023] Furthermore, the collection cover adopts an irregular cavity structure that contracts at both ends and expands in the middle.

[0024] By adopting the above technical solution, the dust, debris and other impurities generated during anchor bolt cleaning operations can slide down the inner wall of the collection hood and gather at the lower part of the collection hood and the connection position with the collection pipe under the combined action of gravity and negative pressure suction, effectively avoiding the retention and adhesion of impurities to the inner wall of the collection hood.

[0025] In summary, the present invention has the following beneficial effects: 1. In this application, before the anchor rod enters the straightening mechanism, the surface of the rod is scraped and cleaned by a rotating drum, an installation drum, and brushes to remove coal slime, rock powder, and rust debris. Impurities are collected by a collection component, which removes hard impurities from the surface of the anchor rod and prevents them from being pressed into the anchor rod body during the straightening and extrusion process, causing scratches and indentations. At the same time, it prevents impurities from entering the straightening roller, reducing wear on components such as the pressure roller and bearings. The position of the slider and brushes can be adjusted in real time using the adjustment component to ensure the contact force between the brushes and the anchor rod and to adapt to anchor rods of different sizes. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure from another perspective of an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the connection structure between the base frame and the frame in an embodiment of the present invention; Figure 4 This is a schematic diagram illustrating the connection structure between the fixing frame and the guide frame in an embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the connection structure between gear three and the mounting cylinder in an embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the connection structure between gear four and synchronous pulley one in an embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the rotating cylinder and the guide frame; Figure 8 This is a schematic diagram illustrating the connection structure between the rotating cylinder and the slider in an embodiment of the present invention; Figure 9 This is a schematic diagram illustrating the connection structure between the suction machine and the housing in an embodiment of the present invention.

[0027] In the diagram: 1. Base frame; 2. Machine frame; 3. Straightening mechanism; 31. Bearing seat one; 32. Bearing seat two; 33. Lower pressure roller; 34. Upper pressure roller; 35. Adjusting screw; 36. Gearbox; 37. Motor; 38. Gear one; 39. Gear two; 310. Sprocket; 311. Chain; 4. Inlet frame; 5. Outlet frame; 6. Processing device; 61. Rotating cylinder; 62. Mounting cylinder; 63. Slide; 64. Brush; 65. Guide rod; 66. Rotating ring; 67. Protruding rod; 68. Worm gear; 69. Worm; 610. Control head; 611. Gear three; 612. Gear four; 613. Synchronous pulley one; 614. Synchronous pulley two; 615. Synchronous belt; 616. Slider; 617. Tensioner; 618. Double-acting screw; 619. Fixing frame; 620. Collection cover; 621. Collection pipe; 622. Valve; 623. Housing; 624. Filter box; 625. Suction machine; 7. Guide hole; 8. Arc-shaped hole. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] like Figures 1-9As shown in the illustration, this application discloses a device for straightening scrap anchor bolts in coal mines, including a base frame 1, a frame 2, a straightening mechanism 3, and a processing device 6. The base frame 1 is equipped with the frame 2, and an inlet frame 4 and an outlet frame 5 are fixedly connected to both sides of the frame 2. The inlet frame 4 is equipped with the processing device 6, which includes a rotating cylinder 61, an mounting cylinder 62, a slider 616, bristles 64, an adjustment component, a control component, and a collection component. Multiple rotating cylinders 61 are provided, and these cylinders are rotatably connected to the inlet frame 4. The mounting cylinder 62 is mounted on the rotating cylinder 61, and multiple sliders 616 are provided. The multiple sliders 616 are slidably connected to the mounting cylinder 62, and the bristles 64 are fixed to the sliders 616. Multiple holes on the surfaces of the inlet frame 4 and outlet frame 5 are adapted to anchor bolts of different diameters. During use, the waste anchor bolts to be processed are fed into the device through the inlet frame 4. The anchor bolts first undergo surface cleaning in the processing device 6, and then enter the straightening mechanism 3 for straightening. After straightening by the straightening mechanism 3, the anchor bolts are finally output from the outlet frame 5. When the anchor bolts enter the area of ​​the inlet frame 4, they sequentially pass through the internal cavities of the mounting cylinder 62 and the rotating cylinder 61. The control component drives the mounting cylinder 62 and the rotating cylinder 61 to rotate synchronously. The mounting cylinder 62 drives each slider 616 and the brushes 64 fixed on the sliders 616 to rotate together. The rotating brushes 64 contact and rub against the outer wall of the anchor bolt, removing impurities such as coal slime, rock powder, and rust debris adhering to the anchor bolt surface. Scraping and cleaning are performed; all kinds of debris that fall off are collected by the collection component to prevent debris from scattering inside the equipment and entering the straightening mechanism 3, which could cause scratches on the rod or aggravate wear on equipment parts; during operation, the operator can adjust the slider 616 by adjusting the component to slide along the mounting cylinder 62, thereby changing the extension position of the slider 616 and the bristles 64, and thus flexibly adjusting the contact pressure between the bristles 64 and the anchor rod to adapt to waste anchor rods of different diameters; at the same time, the bristles 64 of the corresponding material can be selected according to the type and adhesion of the impurities on the anchor rod surface, so as to adapt to the cleaning needs of different working conditions, ensure the cleaning effect on the surface of the anchor rod, reduce the residue of hard impurities, and reduce the risk of impurities squeezing and damaging the anchor rod in the subsequent straightening process.

[0030] The straightening mechanism 3 is mounted on the frame 2 and is used to straighten the anchor rod. The straightening mechanism 3 includes a first bearing seat 31, a second bearing seat 32, a lower pressure roller 33, an upper pressure roller 34, an adjusting screw 35, and a drive assembly. Two sets of first bearing seats 31 are provided, and both sets are installed in the frame 2. Two sets of second bearing seats 32 are also provided, and both sets are installed in the frame 2. Two lower pressure rollers 33 are provided, each rotatably connected to a corresponding set of first bearing seats 31 and having multiple pressure grooves of different sizes on their surfaces. Two upper pressure rollers 34 are provided, each rotatably connected to a corresponding set of second bearing seats 32 and having multiple pressure grooves of different sizes on their surfaces. The adjusting screw 35 is rotatably connected to the second bearing seat 32 and threadedly connected to the frame 2. During the operation, the pre-treated and cleaned waste anchor rods are conveyed into the straightening mechanism 3. The drive component drives the corresponding upper pressure rollers 34 and lower pressure rollers 33 to rotate synchronously in opposite directions. The waste anchor rods are automatically and continuously fed by the friction between the pressure grooves at the corresponding positions and the anchor rod body, eliminating the need for manual material pushing, greatly reducing labor intensity and improving the degree of automation. At the same time, the device adopts a dual-station straightening structure with two sets of paired upper and lower pressure rollers 33. The waste anchor rods can pass through both straightening stations at one time. Through multi-position and multi-section extrusion straightening, multiple bent and deformed parts of the anchor rod body are precisely corrected, effectively improving the problems of incomplete straightening and poor straightening accuracy in a single straightening operation. The entire anchor rod can be straightened in one go, greatly improving the straightening efficiency and quality of waste anchor rods.

[0031] The drive assembly controls the rotation of the lower pressure roller 33 and the upper pressure roller 34. The drive assembly includes a reduction gearbox 36, a motor 37, a first gear 38, a second gear 39, sprockets 310, and a chain 311. The reduction gearbox 36 and the motor 37 are mounted on the base frame 1. Two first gears 38 are provided, each fixedly sleeved on its corresponding lower pressure roller 33. Two second gears 39 are provided, each fixedly sleeved on its corresponding upper pressure roller 34 and meshing with its corresponding first gear 38. Two sprockets 310 are provided, each fixedly sleeved on its corresponding lower pressure roller 33. The chain 311 meshes with the two sprockets 310. The output end of the motor 37 is fixedly connected to the input end of the reduction gearbox 36, and the output end of the reduction gearbox 36 is fixedly connected to one of the lower pressure rollers 33. When the equipment is working, the motor 37 is started. The power output of the motor 37 is reduced and increased in torque by the reduction gearbox 36, and then drives the connected lower pressure roller 33 to rotate. While the lower pressure roller 33 is working, it drives another set of lower pressure rollers 33 to rotate synchronously in the same direction through the meshing transmission of the sprocket 310 and the chain 311. At the same time, the gear 38 on the two lower pressure rollers 33 rotates with the roller body and meshes with the corresponding gear 39 to rotate in the opposite direction. This drives the two upper pressure rollers 34 and the corresponding lower pressure rollers 33 to form a state of opposite rotation. The friction of the upper and lower rollers drives the waste anchor rod to be fed at a uniform speed. At the same time, the pressing action of the roller body completes the anchor rod straightening operation. The overall transmission structure has strong linkage and stable operation, which can ensure the continuous and stable straightening of the anchor rod.

[0032] The adjusting assembly controls the movement of multiple sliders 616. The adjusting assembly includes a rotating ring 66, a protruding rod 67, a worm gear 68, a worm 69, and control heads 610. The rotating ring 66 is rotatably connected to the mounting cylinder 62 and has multiple arc-shaped holes 8 on its surface. The protruding rod 67 is fixed to the sliders 616 and slides within the arc-shaped holes 8. The worm gear 68 is fixed to the rotating ring 66, and the worm 69 is rotatably connected to the mounting cylinder 62 and meshes with the worm gear 68. Two control heads 610 are provided, each fixedly connected to both ends of the worm 69. During actual adjustment, the operator can rotate the control head 610 to drive the worm 69 to rotate synchronously. Utilizing the meshing transmission characteristics of the worm 69 and the worm wheel 68, the worm wheel 68 and the rotating ring 66 are driven to rotate as a whole. During the rotation of the rotating ring 66, the arc-shaped hole 8 on its surface will generate a lateral thrust on the interlocking convex rod 67, thereby pushing the convex rod 67 and the slider 616 to move smoothly inside the mounting cylinder 62. Ultimately, the working position of the slider 616 and the bristles 64 can be precisely adjusted. The cleaning position can be adapted to the specifications of the waste anchor rod, with strong adaptability and convenient and precise adjustment operation.

[0033] The adjustment assembly also includes multiple guide rods 65, which are respectively fixed to both sides of the slider 616. A guide hole 7 is provided on the surface of the mounting cylinder 62, and the guide rods 65 slide in conjunction with the guide hole 7. The cooperation between the guide rods 65 and the guide hole 7 further improves the stability of the slider 616 during movement.

[0034] The control assembly is used to drive the mounting cylinder 62 to rotate during straightening. The control assembly includes gear three 611, gear four 612, synchronous pulley one 613, synchronous pulley two 614, and a synchronous belt 615. Gear three 611 is fixedly sleeved on the mounting cylinder 62, and multiple gear four 612s are provided. Multiple gear four 612s are rotatably connected to the guide frame 4 and mesh with gear three 611s. Synchronous pulley one 613 is fixedly sleeved on gear four 612s. Synchronous pulley two 614 is fixedly sleeved on the output end of the motor 37, and the synchronous belt 615 meshes with synchronous pulley one 613 and synchronous pulley two 614. When the device performs anchor bolt straightening operations, the motor 37 drives the straightening mechanism 3 to run, and its output end can drive the synchronous pulley 614 to rotate synchronously. The synchronous pulley 614 drives multiple synchronous pulleys 613 to rotate synchronously through the meshing transmission of the synchronous belt 615, so that each gear 612 rotates synchronously. By utilizing the meshing cooperation between gear 612 and gear 611, the gear 611 drives the mounting cylinder 62 and the internal rotating ring 66 to rotate as a whole, which in turn drives the brush 64 on the mounting cylinder 62 to rotate synchronously. During the anchor bolt feeding and straightening process, the rust, slag and other impurities on the surface of the anchor bolt are rotated and cleaned, realizing the synchronous operation of straightening and cleaning. No additional drive equipment is required. The structure has a high degree of integration, is energy-saving and efficient, and effectively improves the pre-treatment and cleaning effect of waste anchor bolts.

[0035] The control assembly also includes slides 63, tensioning pulleys 617, and bidirectional screws 618. Multiple sets of slides 63 are provided, with two slides in each set. These multiple sets of slides 63 are slidably connected to the guide frame 4, and the tensioning pulleys 617 are rotatably connected to the slides 63. Multiple bidirectional screws 618 are provided, rotatably connected to the guide frame 4, and threadedly connected to each set of slides 63. Operators can rotate the bidirectional screws 618, utilizing their forward and reverse thread structure, to drive two slides 63 in the same set to slide synchronously relative to each other or in opposite directions. During the displacement of the slides 63, the tensioning pulleys 617 move synchronously, pressing the timing belt 615 against the timing belt. This allows for real-time adjustment of the timing belt 615's tension, effectively preventing slippage and transmission failure, ensuring a good meshing transmission between the timing belt 615 and each timing pulley 613 and 614, and ensuring stable and precise operation of the cleaning drive structure.

[0036] The collection assembly is used to collect impurities after cleaning. The collection assembly includes a mounting frame 619, a collection hood 620, a collection pipe 621, a valve 622, a housing 623, a filter box 624, and a suction machine 625. The mounting frame 619 is mounted on the inlet frame 4. Multiple collection hoods 620 are provided and fixed to the mounting frame 619. The collection pipe 621 is fixedly connected to the collection hood 620, and the valve 622 is fixedly connected to the other end of the collection pipe 621. The housing 623 is mounted on the base frame 1, and the filter box 624 is inserted into the housing 623 and locked with bolts. The suction machine 625 is mounted on the housing 623, with its input end connected to the housing 623. The other end of the valve 622 is fixedly connected to the housing 623, and the mounting cylinder 62 is located inside the collection hood 620. During the anchor bolt straightening and cleaning operation, the valve 622 on the corresponding workstation collection pipe 621 can be opened according to the actual working conditions, and the suction machine 625 can be started to create a negative pressure environment inside the box 623. Dust, rust debris, slag, and other impurities generated during anchor bolt cleaning are collected by the collection hood 620 under the negative pressure suction and guided into the box 623 along the collection pipe 621 and valve 622. The impurities entering the box 623 are intercepted and collected inside the filter box 624, and the clean airflow is discharged by the suction machine 625. This effectively achieves centralized collection and treatment of operational impurities, preventing dust from scattering and polluting the working environment. It also facilitates subsequent unified cleaning of impurities. The overall structure is simple, with good dust collection effect, effectively improving the environmental friendliness and cleanliness of the equipment operation. The inlet of the collection hood 620 is cone-shaped.

[0037] The collection hood 620 adopts an irregular cavity structure that contracts at both ends and expands in the middle. Dust, debris and other impurities generated during anchor bolt cleaning operations can slide down the inner wall of the collection hood 620 under the combined action of gravity and negative pressure suction and gather at the connection position between the lower part of the collection hood 620 and the collection pipe 621, effectively preventing impurities from being retained or adhering to the inner wall of the collection hood 620.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A device for straightening scrap anchor bolts in coal mines, comprising a base frame (1), characterized in that: The base frame (1) is provided with a frame (2), and the frame (2) is provided with a straightening mechanism (3) for straightening the anchor rod. The two sides of the frame (2) are respectively fixedly connected to an inlet frame (4) and an outlet frame (5). The inlet frame (4) is provided with a processing device (6). The processing device (6) includes multiple rotating cylinders (61) rotatably connected to the inlet frame (4), an installation cylinder (62) installed on the rotating cylinder (61), multiple sliders (616) slidably connected to the installation cylinder (62), and bristles (64) fixed on the sliders (616). The processing device (6) also includes an adjustment component for controlling the movement of multiple sliders (616), a control component for driving the installation cylinder (62) to rotate during straightening, and a collection component for collecting impurities after cleaning.

2. The straightening device for scrap anchor bolts in coal mines according to claim 1, characterized in that: The straightening mechanism (3) includes two sets of bearing seats 1 (31) installed in the frame (2), two sets of bearing seats 2 (32) set in the frame (2), two lower pressure rollers (33) rotatably connected to the corresponding set of bearing seats 1 (31) and having multiple pressure grooves of different sizes on their surfaces, two upper pressure rollers (34) rotatably connected to the corresponding set of bearing seats 2 (32) and having multiple pressure grooves of different sizes on their surfaces, and an adjusting screw (35) rotatably connected to the bearing seats 2 (32) and threadedly connected to the frame (2). The straightening mechanism (3) also includes a drive assembly for controlling the rotation of the lower pressure rollers (33) and the upper pressure rollers (34).

3. A device for straightening scrap anchor bolts in coal mines according to claim 2, characterized in that: The drive assembly includes a gearbox (36) and a motor (37) mounted on the base frame (1), two gears (38) respectively fixedly sleeved on the corresponding lower pressure rollers (33), two gears (39) respectively fixedly sleeved on the corresponding upper pressure rollers (34) and meshing with the corresponding gears (38), two sprockets (310) respectively fixedly sleeved on the corresponding lower pressure rollers (33) and a chain (311) meshing with the two sprockets (310). The output end of the motor (37) is fixedly connected to the input end of the gearbox (36), and the output end of the gearbox (36) is fixedly connected to one of the lower pressure rollers (33).

4. A device for straightening scrap anchor bolts in coal mines according to claim 1, characterized in that: The adjustment assembly includes a rotating ring (66) rotatably connected to the mounting cylinder (62) and having multiple arc-shaped holes (8) on its surface, a protruding rod (67) fixed on the slider (616) and slidingly engaged with the arc-shaped holes (8), a worm wheel (68) fixed on the rotating ring (66), a worm (69) rotatably connected to the mounting cylinder (62) and meshing with the worm wheel (68), and two control heads (610) fixedly connected to both ends of the worm (69).

5. A device for straightening scrap anchor bolts in coal mines according to claim 4, characterized in that: The adjustment assembly also includes multiple guide rods (65) fixed on both sides of the slider (616), and the surface of the mounting cylinder (62) is provided with guide holes (7), and the guide rods (65) slide in cooperation with the guide holes (7).

6. A device for straightening scrap anchor bolts in coal mines according to claim 3, characterized in that: The control assembly includes a gear three (611) fixedly mounted on the mounting cylinder (62), a plurality of gear four (612) rotatably connected to the guide frame (4) and meshing with gear three (611), a synchronous pulley one (613) fixedly mounted on gear four (612), a synchronous pulley two (614) fixedly mounted on the output end of the motor (37), and a synchronous belt (615) meshing with synchronous pulley one (613) and synchronous pulley two (614).

7. A device for straightening scrap anchor bolts in coal mines according to claim 6, characterized in that: The control assembly also includes multiple sets of slides (63) slidably connected to the guide frame (4), tensioning wheels (617) rotatably connected to the slides (63), and multiple bidirectional screws (618) rotatably connected to the guide frame (4) and threadedly connected to each set of slides (63), with two slides in each set.

8. A device for straightening scrap anchor bolts in coal mines according to claim 1, characterized in that: The collection assembly includes a fixed frame (619) mounted on the inlet frame (4), multiple collection covers (620) fixed on the fixed frame (619), a collection pipe (621) fixedly connected to the collection cover (620), a valve (622) fixedly connected to the other end of the collection pipe (621), a box (623) mounted on the base frame (1), a filter box (624) inserted into the box (623) and locked with bolts, and a suction machine (625) mounted on the box (623) and connected to the box (623) at its input end. The other end of the valve (622) is fixedly connected to the box (623), and the mounting cylinder (62) is located inside the collection cover (620).

9. A device for straightening scrap anchor bolts in coal mines according to claim 8, characterized in that: The inlet of the collection hood (620) is cone-shaped.

10. A device for straightening scrap anchor bolts in coal mines according to claim 8, characterized in that: The collection hood (620) adopts an irregular cavity structure that contracts at both ends and expands in the middle.

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