Mine supporting anchor rod body straightening equipment

Abstract

The invention relates to the technical field of mine supporting equipment, in particular to mine supporting anchor rod body straightening equipment which comprises a straightening unit and an auxiliary unit, a first straightening roller, a second straightening roller and a third straightening roller are driven to rotate through an externally-arranged motor, so that a pipe seam type anchor rod is driven to rotate, the outer wall of the pipe seam type anchor rod is straightened, and the straightening efficiency is improved. The pipe seam type anchor rod straightening device drives the pipe seam type anchor rod to rotate and feed rightwards at the same time so as to achieve the purpose of straightening the outer end of the pipe seam type anchor rod and conveying the pipe seam type anchor rod rightwards at the same time, the contact plate makes contact with the inner wall of the pipe seam type anchor rod which rotates and feeds rightwards so as to achieve the purpose of straightening the inner wall of the pipe seam type anchor rod, and it is ensured that the precision of the pipe seam type anchor rod meets the engineering use requirement. The anchor rod does not need to be replaced, and waste is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of mine support equipment, in particular to a mine support anchor rod straightening device. Background Art

[0002] Anchor rods are the most basic component of tunnel support in modern coal mines. They reinforce the surrounding rock of the tunnel so that the surrounding rock can support itself. Anchor rods can also reinforce the main body of slopes, tunnels, and dams. The types of anchor rods are mainly divided into pipe-slit anchor rods and self-spinning anchor rods. Pipe-slit anchor rods are a new type of anchor rod that anchors the entire length and actively reinforces the surrounding rock. Its three-dimensional part is a high-strength steel pipe with a longitudinal slit and steel rings fixed at both ends. When installed in a borehole slightly smaller than the pipe diameter, it can immediately apply radial pressure and friction to the hole wall throughout the entire length to prevent the surrounding rock from sliding down, plus the supporting force of the anchor rod tray plate, so that the surrounding rock is in a three-dimensional stress state.

[0003] In the tunnel support project, the dismantled pipe-slit anchor rods need to be straightened and reused due to bending deformation. The traditional straightening method is to use a roller straightening machine to straighten the pipe-slit anchor rods, and then use a three-stage external straightening unit to straighten the pipe-slit anchor rods. First, the bent pipe-slit anchor rod body is passed through the feed guide device into the first external straightening unit, and the upper and lower rollers apply radial pressure to straighten it once, and then the pipe-slit anchor rod body is passed through the second and third external straightening units in turn, and finally the straightening is completed.

[0004] However, the straightening process mentioned above has the following problems: the pipe-slit anchor rod has longitudinal seams, and due to the asymmetric deformation unique to the seamed pipe body, the straightening mentioned above often cannot make the seams on the pipe-slit anchor rod meet the engineering requirements, and the efficiency of the three-level straightening is slow. Summary of the Invention

[0005] In view of the above problems, the present invention provides a mine support anchor rod straightening device to solve the technical problem in the related art that the bending and deformation inside the anchor rod cannot be adjusted. In order to achieve the above purpose, the present invention provides the following technical solutions.

[0006] A mine support anchor rod straightening device according to an embodiment of the present application includes an external straightening unit for straightening the outside of a pipe-slit anchor rod and an internal straightening unit for straightening the inside of the pipe-slit anchor rod; the external straightening unit includes a fixed platform, and an upper end of the fixed platform is symmetrically fixed with an inclined straightening roller 1, and the fixed platform is provided with an adjustment component, and the adjustment component is symmetrically fixed with an inclined straightening roller 2, and the front and rear ends of the adjustment component are symmetrically provided with straightening rollers 3. Straightening rollers 1, 2 and 3 straighten the outside of the pipe-slit anchor rod while driving it to move toward one side of the internal straightening unit and rotate at the same time, and the adjustment component adjusts the external straightening unit and the internal straightening unit to ensure that their straightening center lines always coincide with the center line of the pipe-slit anchor rod.

[0007] The internal straightening unit includes a fixed cylinder, and a fixed cylinder is arranged in the middle of the right side of the adjustment component. Internal straightening parts for straightening the inside of the pipe seam anchor rod are evenly arranged on the fixed cylinder. External straightening parts and pipe seam straightening parts are arranged on the left side of the adjustment component. The internal straightening parts cooperate with the external straightening parts to straighten the inner and outer diameters of the pipe seam anchor rod whose steel ring has passed through the external straightening parts. At the same time, the pipe seam straightening parts straighten the pipe seams of the pipe seam anchor rod.

[0008] According to an embodiment of the present invention, the adjustment component includes a lower pressure frame, and the lower end of the lower pressure frame is symmetrically fixed with inclined straightening rollers 2, a center frame 1 is provided on both the front and rear sides between the fixed platform and the lower pressure frame, and the opposite ends of the center frame 1 on the front and rear sides are provided with straightening rollers 3, a limiting frame 1 is symmetrically provided on the fixed platform, the limiting frame 1 is connected to the center frame 1, and the fixed platform and the right end of the lower pressure frame are jointly provided with a center frame 2, and a fixed cylinder is provided in the middle of the center frame 2.

[0009] According to an embodiment of the present invention, the lower pressure frame includes a rectangular bracket, a rectangular bracket is fixedly provided at the rear end of the fixed platform, an inclined arc plate is fixedly provided at the upper end of the rectangular bracket, a distance control cylinder 1 is fixedly provided at the lower end of the arc plate, a horizontal plate is fixedly provided at the telescopic end of the distance control cylinder 1, the horizontal plate and the rectangular bracket are slidingly connected up and down, and an inclined straightening roller 2 is fixedly provided symmetrically at the lower end of the horizontal plate.

[0010] According to an embodiment of the present invention, the center frame 1 includes a round head plate, and the front and rear ends of the fixed platform and the horizontal plate are hinged with inclined round head plates. A rectangular block is hinged between the upper and lower corresponding round head plates on the same side. The opposite ends of the left and right rectangular blocks are fixedly installed with a distance control cylinder 2, and the telescopic end of the distance control cylinder 2 is fixedly installed with an inclined straightening roller 3.

[0011] According to an embodiment of the present invention, the limiting frame includes a right-angle bracket, and the fixed platform is symmetrically fixed with the right-angle bracket in the front and rear directions. The vertical section of the right-angle bracket is provided with a guide groove toward one end of the rectangular block. A slider is connected to the guide groove for sliding up and down. A telescopic rod is fixedly connected between the slider and the rectangular block.

[0012] According to an embodiment of the present invention, the straightening roller one and the corresponding straightening roller two are staggered up and down in an X-shaped arrangement, and the two straightening rollers three are staggered front and back in an X-shaped arrangement, and the roller surfaces of the straightening roller one, the straightening roller two and the straightening roller three are all bracket-shaped with a concave middle part.

[0013] According to an embodiment of the present invention, the center frame 2 includes an extension plate, and the right end of the fixed platform and the right end of the horizontal plate are fixedly installed with extension plates, and the upper and lower extension plates are hinged with inclined plates, and the upper and lower inclined plates are hinged with a positioning plate, and a fixed cylinder is fixedly installed in the middle of the positioning plate, and a limiting frame 2 is provided at the rear end of the lower extension plate.

[0014] According to an embodiment of the present invention, the internal straightening member includes a control rod, which is rotatably connected to the middle of the fixed cylinder, and a control handle is fixedly installed on the right end of the control rod. Threaded grooves are evenly arranged on the control rod, and a frustum block is threadedly connected to the threaded groove. The frustum block is connected to the fixed cylinder for left and right sliding movement. The outer end of the frustum block is connected to a contact plate for left and right sliding movement along its circumference, and the contact plate slides through the fixed cylinder.

[0015] According to an embodiment of the present invention, the second limit frame has the same structure as a part of the limit frame, wherein the rear side of the extension plate at the right end of the fixed platform is fixedly connected to a right-angle bracket one, a guide groove one is opened on the front side of the vertical section of the right-angle bracket one, a slider is connected to the guide groove one for sliding up and down, linkage plates are fixedly installed at the front and rear ends of the positioning plate, and a telescopic rod one is fixedly connected between the slider and the rear linkage plate.

[0016] According to an embodiment of the present invention, the external straightening member includes a four-jaw chuck, and the four-jaw chuck is fixedly installed on the left side of the linkage plate on the front and rear sides through a connecting rod, and the jaws on the four-jaw chuck are fixedly installed with an external straightening plate that matches the outer wall of the pipe seam anchor rod. The upper and lower ends of the four-jaw chuck are respectively fixedly connected to the corresponding extension plates with a telescopic rod 2, and the handle for controlling the four-jaw chuck and the control rod are linked and controlled by setting a gear set.

[0017] According to an embodiment of the present invention, the pipe seam straightening part includes a circular ring plate, a positioning plate is rotatably connected to the left end of the circular ring plate, a support plate is fixedly installed on the left end of the circular ring plate, a matching groove is provided in the middle of the support plate, a plurality of cylindrical springs are evenly fixedly installed in the matching groove, and matching plates that match the pipe seam groove of the pipe seam anchor are commonly fixedly installed at the ends of the cylindrical springs, chamfers are provided on the left end of the matching plate and its front and rear ends to facilitate entry into the pipe seam anchor, and a plurality of balls are evenly connected to the arc surface of the matching plate.

[0018] It can be seen from the above technical solutions that the present invention has the following advantages:

[0019] 1. In the present invention, an externally arranged motor drives the straightening rollers 1, 2 and 3 to rotate, thereby driving the pipe seam anchor to rotate and straighten its outer wall, while driving it to move and rotate. The inner wall of the pipe seam anchor is straightened by the internal straightening unit, and the inner and outer straightening parts cooperate with the internal straightening parts to straighten the inner and outer diameters of the pipe seam anchor whose steel ring has passed through the outer straightening parts. At the same time, the pipe seam straightening parts straighten the pipe seams of the pipe seam anchor. Multiple internal and external straightening processes ensure that the accuracy of the pipe seam anchor meets the requirements for engineering use.

[0020] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a mine support anchor rod straightening device provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the main stereoscopic structure of the present invention is shown.

[0023] Figure 2 A rear perspective structural diagram of the present invention with the horizontal plate removed is shown.

[0024] Figure 3 A schematic diagram of the top-view cross-sectional plan structure of the truncated cone block and the contact plate is shown.

[0025] Figure 4 A schematic diagram of the main cross-sectional plan structure of the pipe seam straightening component is shown.

[0026] Figure 5 A schematic diagram of the right side sectional plan structure of the pipe seam straightening component is shown.

[0027] The above drawings include the following reference numerals:

[0028] 1. External straightening unit; 11. Fixed table; 12. Straightening roller 1; 13. Lower pressure frame; 131. Rectangular bracket; 132. Curved plate; 133. Distance control cylinder 1; 134. Horizontal plate; 14. Straightening roller 2; 15. Centering frame 1; 151. Round head plate; 152. Rectangular block; 153. Distance control cylinder 2; 16. Straightening roller 3; 17. Limiting frame 1; 171. Right-angle bracket 1; 172. Guide groove 1; 173. Slider; 174. Telescopic rod 1; 18. Limiting frame 2; 181. Linkage plate; 2. Internal straightening unit; 21. Centering frame 2; 211. Extension plate; 212. Inclined plate; 213. Positioning plate; 22. Fixed cylinder; 23. Internal straightening member; 231. Control rod; 232. Control handle; 233. Cone block; 234. Contact plate; 24. External straightening member; 241. Four-jaw chuck; 242. External straightening plate; 243. Telescopic rod 2; 25. Pipe seam straightening member; 251. Circular ring plate; 252. Support plate; 253. Cylindrical spring; 254. Matching plate. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] See Figure 1 and Figure 2 A mine support anchor rod straightening device comprises an outer straightening unit 1 for straightening the outside of the pipe seam anchor and an inner straightening unit 2 for straightening the inside of the pipe seam anchor; the outer straightening unit 1 comprises a fixed platform 11, and an inclined straightening roller 12 is fixedly installed symmetrically on the upper end of the fixed platform 11, and an adjustment component is provided on the rear side of the fixed platform 11, and an inclined straightening roller 2 14 is fixedly installed symmetrically on the left and right sides of the adjustment component. The straightening roller 12 and the straightening roller 2 14 are arranged in an X shape in the upper and lower positions, and are used to straighten the outer end of the pipe seam anchor. The straightening roller 3 16 is symmetrically provided at the front and rear ends of the adjustment component. The adjustment component is provided with a straightening roller 3 for the outer straightening unit 1 and the inner straightening roller 3 16. The inner straightening unit is adjusted to ensure that its straightening center line always coincides with the center line of the pipe seam anchor rod; the inner straightening unit 2 includes a fixed cylinder 22, and a fixed cylinder 22 is fixedly installed on the middle part of the right side of the adjustment component. Internal straightening parts 23 for straightening the inside of the pipe seam anchor rod are evenly arranged on the fixed cylinder 22, and an outer straightening part 24 and a pipe seam straightening part 25 are arranged on the left side of the adjustment component. The straightening roller 12 cooperates with the straightening roller 2 14, and the two straightening rollers 3 16 cooperate with each other. While straightening the outside of the pipe seam anchor rod, the pipe seam anchor rod is transported so that the pipe seam anchor rod can be smoothly sleeved on the outside of the fixed cylinder 22.

[0031] See Figure 1 and Figure 2 The adjustment component includes a lower pressure frame 13, and a center frame 15 is provided on both the front and rear sides between the fixed platform 11 and the lower pressure frame 13. Straightening rollers 3 16 are provided at the opposite ends of the center frame 15 on the front and rear sides. A limiting frame 17 is symmetrically provided on the front and rear sides of the fixed platform 11, and the limiting frame 17 is connected to the center frame 12. A center frame 2 18 is commonly provided on the right end of the fixed platform 11 and the lower pressure frame 13, and a fixed cylinder 22 is provided in the middle of the center frame 2 18.

[0032] The lower pressure frame 13 includes a rectangular bracket 131, and the rectangular bracket 131 is fixedly installed at the rear end of the fixed platform 11. An inclined arc plate 132 is fixedly installed on the upper end of the rectangular bracket 131, and a distance control cylinder 133 is fixedly installed on the lower end of the arc plate 132. A horizontal plate 134 is fixedly installed on the telescopic end of the distance control cylinder 133. The horizontal plate 134 is connected to the rectangular bracket 131 for vertical sliding connection, and an inclined straightening roller 2 14 is fixedly installed on the lower end of the horizontal plate 134 in a left-right symmetrical manner.

[0033] See Figure 2 The center frame 15 includes a round head plate 151. The front and rear ends of the fixed platform 11 and the horizontal plate 134 are hinged with inclined round head plates 151. The upper and lower corresponding round head plates 151 on the same side are hinged with rectangular blocks 152. The opposite ends of the left and right rectangular blocks 152 are fixedly installed with distance control cylinders 2 153. The telescopic end of the distance control cylinders 2 153 is fixedly installed with inclined straightening rollers 3 16.

[0034] See Figure 1 and Figure 2 The straightening roller 12 and the corresponding straightening roller 2 14 are staggered up and down in an X-shaped arrangement, and the two straightening rollers 3 16 are staggered front and back in an X-shaped arrangement. The roller surfaces of the straightening roller 12, the straightening roller 2 14 and the straightening roller 3 16 are all bracket-shaped with a concave middle part.

[0035] See Figure 2 The limiting frame 17 includes a right-angle bracket 171, and the fixed platform 11 is symmetrically fixed with the right-angle bracket 171. The vertical section of the right-angle bracket 171 is provided with a guide groove 172 at one end facing the rectangular block 152. A slider 173 is connected to the guide groove 172 for sliding up and down. A telescopic rod 174 is fixedly connected between the slider 173 and the rectangular block 152.

[0036] See Figure 2The center frame 21 includes an extension plate 211. The extension plates 211 are fixedly installed on the right end of the fixed platform 11 and the right end of the horizontal plate 134. Inclined plates 212 are hinged between the upper and lower extension plates 211. A positioning plate 213 is hinged between the upper and lower inclined plates 212. A fixed cylinder 22 is fixedly installed in the middle of the positioning plate 213. A limiting frame 218 is provided at the rear end of the lower extension plate 211.

[0037] First, place the pipe seam anchor to be straightened on the straightening roller 12, then make the opening of the pipe seam anchor face right and keep it still. At this time, the horizontal plate 134 is driven downward by the distance control cylinder 133 until the lower end of the straightening roller 2 14 contacts the pipe seam anchor. When the distance between the horizontal plate 134 and the fixed platform 11 is fixed, the hinged round head plate 151 centers the rectangular block 152, thereby ensuring that the center of the straightening roller 3 16 is aligned with the center line of the pipe seam anchor. The hinged inclined plate 212 centers the positioning plate 213. Thereby, the center line of the fixed cylinder 22 is aligned with the center line of the pipe seam anchor rod. At this time, the straightening roller three 16 is driven to move toward the pipe seam anchor rod by the distance control cylinder two 153 until the straightening roller three 16 contacts the pipe seam anchor rod. At this time, the straightening roller one 12, straightening roller two 14 and straightening roller three 16 are driven to rotate by the external motor, thereby driving the pipe seam anchor rod to rotate, straightening its outer wall, and driving it to the right at the same time, so as to achieve the purpose of straightening the outer end of the pipe seam anchor rod and conveying it to the right at the same time.

[0038] See Figure 2 The structure of the limiting frame 2 18 is the same as that of the limiting frame 17, wherein the rear side of the extension plate 211 at the right end of the fixed platform 11 is fixedly connected to the right-angle bracket 171, and the front side of the vertical section of the right-angle bracket 171 is provided with a guide groove 172, and a slider 173 is connected to the guide groove 172 for sliding up and down. The front and rear ends of the positioning plate 213 are fixedly installed with a linkage plate 181, and a telescopic rod 174 is fixedly connected between the slider 173 and the rear linkage plate 181.

[0039] See Figure 2 、 Figure 3 and Figure 5 The external straightening member 24 includes a four-jaw chuck 241, and the four-jaw chuck 241 is fixedly installed on the left side of the linkage plate on the front and rear sides through a connecting rod. The claws on the four-jaw chuck 241 are fixedly installed with an external straightening plate 242 that matches the outer wall of the pipe seam anchor rod. The upper and lower ends of the four-jaw chuck 241 are respectively fixedly connected to the corresponding extension plate 211 with a telescopic rod 243. The handle for controlling the four-jaw chuck 241 is linked to the control rod 231 by setting a gear set for linkage control. The gear set is a prior art and a structure that is easily thought of by those skilled in the art. It is not shown in the drawings.

[0040] See Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The pipe seam straightening member 25 includes a circular ring plate 251, and the left end of the positioning plate 213 is rotatably connected to the circular ring plate 251. The left end of the circular ring plate 251 is fixedly installed with a support plate 252. A matching groove is provided in the middle of the support plate 252, and a plurality of cylindrical springs 253 are evenly fixedly installed in the matching groove. The ends of the cylindrical springs 253 are jointly fixedly installed with a matching plate 254 that matches the pipe seam groove of the pipe seam anchor rod. The left end of the matching plate 254 and its front and rear ends are both chamfered to facilitate entry into the pipe seam anchor rod. The arc surface of the matching plate 254 is evenly connected with a plurality of balls. The balls are prior art and are not shown in the drawings.

[0041] See Figure 2 and Figure 3 The inner straightening member 23 includes a control rod 231, which is rotatably connected to the middle part of the fixed cylinder 22, and a control handle 232 is fixedly installed on the right end of the control rod 231. Threaded grooves are evenly opened on the control rod 231, and a frustum block 233 is threadedly connected to the threaded groove. The frustum block 233 is connected to the fixed cylinder 22 for left and right sliding. The outer end of the frustum block 233 is connected to a contact plate 234 for left and right sliding along its circumference, and the contact plate 234 slides through the fixed cylinder 22.

[0042] When the pipe-seam anchor rod moves to the right and is sleeved on the fixed cylinder 22, the pipe-seam anchor rod continues to feed to the right until the steel ring on the pipe-seam anchor rod moves to the right side of the outer straightening plate 242. At this time, driven by the gear set, the control rod 231 rotates, thereby driving the frustum block 233 to move, driving the contact plate 234 to move in the direction away from the fixed cylinder 22 until the contact plate 234 contacts the inner wall of the pipe-seam anchor rod. At the same time, the outer straightening plate 242 on the claws on the four-claw chuck 241 moves toward the pipe-seam anchor rod until the outer straightening plate 242 contacts the outer wall of the pipe-seam anchor rod. The rotating pipe-seam anchor rod is straightened synchronously inside and outside and feeds to the right at the same time. When the pipe-seam anchor rod contacts the matching plate 254, it squeezes the matching plate 254, causing the cylindrical spring 253 to be compressed. The matching plate 254 and the support plate 252 are located in the pipe-seam anchor rod together. Since the arc surface of the matching plate 254 is a ball bearing, the matching plate 254 is subjected to When the pipe-slit anchor rod is fed to the right, the pipe-slit groove on the pipe-slit anchor rod is straightened by the matching plate 254. At the same time, the annular plate 251 can make the matching plate 254 rotate together with the pipe-slit anchor rod until the straightening is completed. After the straightening is completed, the horizontal plate 134 is driven upward by the distance control cylinder 133. At this time, the distance between the extension plates 211 on the upper and lower sides becomes larger, the inclination angle of the inclined plate 212 becomes smaller, and the positioning plate 213 moves to the left, driving the fixed cylinder 22 to move to the left. The pipe-slit anchor rod sleeved on the fixed cylinder 22 moves to the left together, making it easy for the staff to remove the straightened pipe-slit anchor rod.

[0043] In the description of the present invention, it should be understood that the terms "center", "middle", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "end", "axial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0044] Furthermore, the terms "first," "second," "number one," "number two," "one," and "two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being described. In the description of the present invention, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0045] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, integral or sliding connections; they may refer to mechanical or electrical connections; they may refer to direct or indirect connections via an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mine support anchor rod straightening device, characterized in that , including an external straightening unit for straightening the outside of the pipe seam type anchor rod and an internal straightening unit for straightening the inside of the pipe seam type anchor rod; the external straightening unit includes a fixed platform, and the upper end of the fixed platform is symmetrically fixed with an inclined straightening roller 1, and the fixed platform is provided with an adjustment component, and the adjustment component is symmetrically fixed with an inclined straightening roller 2, and the front and rear ends of the adjustment component are symmetrically provided with straightening rollers 3. Straightening rollers 1, 2 and 3 straighten the outside of the pipe-slit anchor rod while driving it to move toward the inner straightening unit and rotating at the same time. The adjustment assembly adjusts the outer straightening unit and the inner straightening unit to ensure that their straightening center lines always coincide with the center line of the pipe-slit anchor rod; The internal straightening unit includes a fixed cylinder, and a fixed cylinder is arranged in the middle of the right side of the adjustment component. Internal straightening parts for straightening the inside of the pipe seam anchor rod are evenly arranged on the fixed cylinder. External straightening parts and pipe seam straightening parts are arranged on the left side of the adjustment component. The internal straightening parts cooperate with the external straightening parts to straighten the inner and outer diameters of the pipe seam anchor rod whose steel ring has passed through the external straightening parts. At the same time, the pipe seam straightening parts straighten the pipe seams of the pipe seam anchor rod.

2. The mine support anchor rod straightening device according to claim 1, characterized in that: The adjustment component includes a lower pressure frame, and the lower end of the lower pressure frame is symmetrically fixed with inclined straightening rollers 2, a center frame 1 is provided on the front and rear sides between the fixed platform and the lower pressure frame, and the opposite ends of the center frame 1 on the front and rear sides are provided with straightening rollers 3, a limiting frame 1 is symmetrically provided on the fixed platform, the limiting frame 1 is connected to the center frame 1, the fixed platform and the right end of the lower pressure frame are jointly provided with a center frame 2, and a fixed cylinder is provided in the middle of the center frame 2.

3. The mine support anchor rod straightening device according to claim 2, characterized in that: The lower pressure frame includes a rectangular bracket, a rectangular bracket is fixedly provided at the rear end of the fixed platform, an inclined arc plate is fixedly provided at the upper end of the rectangular bracket, a distance control cylinder 1 is fixedly provided at the lower end of the arc plate, a horizontal plate is fixedly provided at the telescopic end of the distance control cylinder 1, the horizontal plate and the rectangular bracket are slidably connected up and down, and an inclined straightening roller 2 is fixedly provided symmetrically at the lower end of the horizontal plate.

4. The mine support anchor rod straightening device according to claim 3, characterized in that: The center frame includes a round head plate, and the front and rear ends of the fixed platform and the horizontal plate are hinged with inclined round head plates. A rectangular block is hinged between the upper and lower corresponding round head plates on the same side. The opposite ends of the left and right rectangular blocks are fixed with a distance control cylinder 2, and the telescopic end of the distance control cylinder 2 is fixed with an inclined straightening roller 3.

5. The mine support anchor rod straightening device according to claim 1, characterized in that: The limiting frame includes a right-angle bracket, and the fixed platform is symmetrically fixed with the right-angle bracket in the front and back. The vertical section of the right-angle bracket is provided with a guide groove toward one end of the rectangular block. A slider is connected to the guide groove for sliding up and down. A telescopic rod is fixedly connected between the slider and the rectangular block.

6. The mine support anchor rod straightening device according to claim 1, characterized in that: The straightening roller one and the corresponding straightening roller two are staggered up and down in an X-shaped arrangement, and the two straightening rollers three are staggered front and back in an X-shaped arrangement. The roller surfaces of the straightening roller one, the straightening roller two and the straightening roller three are all bracket-shaped with a concave middle part.

7. The mine support anchor rod straightening device according to claim 3, characterized in that: The second center frame includes an extension plate, and an extension plate is fixedly provided at the right end of the fixed platform and the right end of the horizontal plate. Inclined plates are hinged between the upper and lower extension plates, and a positioning plate is hinged between the upper and lower inclined plates. A fixed cylinder is fixed in the middle of the positioning plate, and a limiting frame 2 is provided at the rear end of the lower extension plate.

8. The mine support anchor rod straightening device according to claim 7, characterized in that: The inner straightening part includes a control rod, which is rotatably connected to the middle of the fixed cylinder, and a control handle is fixed to the right end of the control rod. Threaded grooves are evenly opened on the control rod, and a frustum block is threadedly connected to the threaded groove. The frustum block is connected to the fixed cylinder for left and right sliding. The outer end of the frustum block is connected to a contact plate for left and right sliding along its circumference, and the contact plate slides through the fixed cylinder.

9. The mine support anchor rod straightening device according to claim 7, characterized in that: The structure of the limiting frame 2 is the same as that of part of the limiting frame, wherein a right-angle bracket 1 is fixedly connected to the rear side of the extension plate at the right end of the fixed platform, a guide groove 1 is provided on the front side of the vertical section of the right-angle bracket 1, a slider is connected to the guide groove 1 for sliding up and down, linkage plates are fixedly provided at the front and rear ends of the positioning plate, and a telescopic rod 1 is fixedly connected between the slider and the rear linkage plate.

10. The mine support anchor rod straightening device according to claim 8, characterized in that: The outer straightening part includes a four-jaw chuck, and the linkage plates on the front and rear sides are fixed with the four-jaw chuck through a connecting rod. The claws on the four-jaw chuck are fixed with an outer straightening plate that matches the outer wall of the pipe seam type anchor rod. The upper and lower ends of the four-jaw chuck are respectively fixedly connected with the corresponding extension plates with two telescopic rods, and the handle for controlling the four-jaw chuck and the control rod are linked and controlled by setting a gear set. The pipe seam straightening part includes a circular ring plate, and the left end of the positioning plate is rotatably connected to the circular ring plate. The left end of the circular ring plate is fixed with a support plate, and a matching groove is provided in the middle of the support plate. A plurality of cylindrical springs are evenly fixed in the matching groove. The ends of the cylindrical springs are jointly fixed with matching plates that match the pipe seam groove of the pipe seam type anchor rod. The left end of the matching plate and its front and rear ends are both chamfered, and the arc surface of the matching plate is evenly rollingly connected with a plurality of balls.

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