Supporting beam shaping machine for coal mine

Abstract

The invention relates to the technical field of straightening structures, in particular to a coal mine supporting beam shaping machine which comprises a plurality of shaping units arranged linearly and used for straightening a supporting beam. The shaping unit comprises two first movable beams and two second movable beams which are correspondingly parallel, the two first movable beams and the two second movable beams form a parallelogram structure, and the two adjacent edges of the parallelogram structure are rotationally connected with each other; by adopting the deformation motion of a parallelogram structure formed by the two movable beams I and the two movable beams II, the plurality of extrusion bodies are utilized to extrude each surface of the cross section of the supporting beam, so that the cross section of the supporting beam is gradually recovered from a parallelogram to a square, the shaping processing work of the shape of the cross section of the supporting beam is realized, and the supporting beam is conveniently recovered to the initial shape; the shaping effect of the supporting beam and the supporting strength of the shaped supporting beam are improved.

Description

Technical Field

[0001] This invention relates to the technical field of straightening structures, and in particular to a support beam straightening machine for coal mines. Background Technology

[0002] In coal mining operations, hydraulic supports are the core equipment for ensuring the safety of the roof of the underground working face and achieving efficient mechanized mining. Support beams, especially the widely used π-shaped beams, are key load-bearing components of hydraulic supports. During their service underground, they must withstand enormous mining pressure and complex geological stresses for a long time. As the coal face advances and the supports are repeatedly supported and moved, the support beams inevitably undergo plastic deformation. Especially after being brought to the surface for recovery, the bending and torsional deformation of some π-shaped beams is often very significant, far exceeding the allowable geometric tolerance range. These severely deformed support beams cannot be directly put into underground recycling, resulting in a large number of potentially valuable scrap support beams accumulating in the mining area.

[0003] To facilitate the reuse of the support beam, it is necessary to straighten and reshape the bent support beam. Traditional straightening methods involve using hydraulic pressure or other means to directly push the bent section of the support beam in the opposite direction to restore it to a straight shape. However, because this type of π-shaped support beam easily deforms from a square shape when bent, it can lead to other issues. Figure 1 The parallelogram shown has a cross-sectional shape that cannot be restored after the support beam is straightened, resulting in poor reshaping effect and relatively low support strength. Summary of the Invention

[0004] This invention provides a support beam shaping machine for coal mines, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A coal mine support beam straightening machine includes several straightening units arranged in a straight line for straightening support beams; The shaping unit includes two parallel movable beams, namely, the first movable beam and the second movable beam. The two movable beams form a parallelogram structure, and the adjacent sides of the parallelogram structure are rotatably connected to each other. Each movable beam is equipped with a hydraulic cylinder, and a piston rod is provided on the hydraulic cylinder. The piston rod contacts the outer wall of the support beam through a pressing body. When the parallelogram structure deforms, the four extrusion bodies compress the four faces of the support beam and deform it.

[0006] In some embodiments of the present invention, the movable beam is horizontal and is fixedly connected to the corresponding hydraulic cylinder; The second movable beam is set vertically or inclined, and the oil cylinder on it is slidably connected to the second movable beam through a movable sleeve.

[0007] In some embodiments of the present invention, each of the movable beams is provided with a secondary beam, and the secondary beam is rotatably connected to the corresponding movable sleeve through a secondary rod.

[0008] In some embodiments of the present invention, the movable beam 2 is composed of splice body 1 and splice body 2 interlocked, and the connection length of splice body 1 and splice body 2 can be adjusted.

[0009] In some embodiments of the present invention, the mating surfaces of the first splice body and the second splice body are Z-shaped. The first splice body is provided with a plurality of threaded rods, and the second splice body is provided with a plurality of long grooves, the length direction of which is parallel to the length direction of the second movable beam. A notch is provided in the long groove, and the threaded rod passes through the corresponding notch and extends into the long groove. A fastening bolt that cooperates with the threaded rod is provided in the long groove.

[0010] In some embodiments of the present invention, each of the movable beams is provided with an oil circuit distribution unit. The oil circuit distribution unit includes an oil guide tank, a main oil pipe, a plurality of oil guide chambers arranged side by side in the oil guide tank, and a plurality of auxiliary oil pipes provided on the oil guide tank. The main oil pipe is used to supply oil to the plurality of oil guide chambers. Each of the oil guiding chambers is provided with a movable body, and an oil guiding groove is provided on the outer wall of the movable body. One side of each of the oil guiding chambers is open, and a connecting plate is provided at the opening position. The connecting plate is fixedly connected to the movable bodies. The connecting plate is rotatably connected to the movable beam II through a push-pull plate. The oil guiding box is connected to the movable beam II through a plurality of splicing bodies II. A groove is provided on the inner wall of the oil guide chamber corresponding to the oil guide groove, and the inner wall at least partially covers the oil guide groove. One end of the auxiliary oil pipe is connected to the oil guide groove, and the other end is connected to the corresponding oil cylinder.

[0011] In some embodiments of the present invention, a fixing cylinder is provided on the side wall of the oil guide tank, an oil distribution groove is provided on the side wall of the fixing cylinder, the main oil pipe is installed on the oil distribution groove, and the main oil pipe, the oil distribution groove, the fixing cylinder and the oil guide tank are connected in sequence. The fixed cylinder is divided into several chambers corresponding to each of the oil guiding chambers, and each chamber is connected to the oil distribution groove. A column and a filler are provided inside the fixed cylinder. The filler slides in contact with part of the outer wall of the column. The column rotates inside the fixed cylinder. Part of the outer wall of the column inside each chamber is slidably inserted with a partition. The two end faces of the filler along the circumference of the fixed cylinder are respectively set as a drainage slope and a guide slope. The drainage slope is used to drain the oil entering the fixed cylinder, and the guide slope is used to guide the partition and make it slide into the column.

[0012] In some embodiments of the present invention, the surface of the movable body facing the fixed cylinder is configured as a slope.

[0013] In some embodiments of the present invention, the number of shaping units is set to two groups; The shaping unit also includes a movable platform, on which the movable beam located on the lower side is rotatably mounted, and the movable beam and the movable platform are rotatably connected by several hydraulic cylinders.

[0014] In some embodiments of the present invention, the shaping machine further includes a machine platform, and both movable platforms are disposed on the machine platform. The movable platforms are movably disposed on the machine platform along the vertical line connecting the two movable platforms.

[0015] The technical solution of this invention can achieve the following technical effects: By employing the deformation motion of a parallelogram structure composed of two movable beams (one and two), several extrusion bodies are used to compress each surface of the support beam cross-section, gradually restoring it from a parallelogram to a square. This achieves the shaping and processing of the support beam cross-section, facilitating the restoration of the support beam to its initial shape, improving the shaping effect of the support beam, and enhancing the support strength of the beam after shaping. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the shape of the supporting beam when it deforms; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a schematic diagram of the shaping unit structure in an embodiment of the present invention; Figure 4 yes Figure 3 Structural schematic diagrams of movable beam one and movable beam two; Figure 5 This is a schematic cross-sectional view of the hydraulic cylinder in an embodiment of the present invention; Figure 6 This is a schematic diagram of the side structure of the shaping unit in an embodiment of the present invention; Figure 7 yes Figure 6 A magnified view of the structure at point A in the middle; Figure 8 This is a schematic diagram of the oil distribution unit structure in an embodiment of the present invention; Figure 9 This is a schematic cross-sectional view of the side of the oil guide tank in an embodiment of the present invention; Figure 10 This is a schematic cross-sectional view of the top of the oil guide tank in an embodiment of the present invention; Figure 11 This is a schematic diagram of the oil guide tank structure in an embodiment of the present invention; Figure 12 This is a schematic diagram of the cross-sectional structure of the column in an embodiment of the present invention.

[0018] Figure label: 100. Support beam; 200. Shaping unit; 201. Movable beam one; 202. Movable beam two; 203. Hydraulic cylinder; 204. Piston rod; 205. Extrusion body; 206. Movable sleeve; 207. Sub-beam; 208. Sub-rod; 209. Splice body one; 210. Splice body two; 211. Threaded rod; 212. Long groove; 213. Notch; 214. Fastening bolt; 300. Oil distribution unit; 301. Oil guide tank; 302. Main oil pipe; 303. Oil guide chamber; 304. Auxiliary oil pipe; 305. Moving body; 306. Oil guide groove; 307. Slope; 308. Connecting plate; 309. Push-pull plate; 310. Elastic body; 311. Groove; 312. Fixed cylinder; 313. Oil distribution groove; 314. Column; 315. Filler; 316. Partition plate; 317. Spring; 318. Drainage slope; 319. Guide slope; 400. Movable platform; 401. Hydraulic cylinder; 500, machine tool; 501, drive module. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] like Figures 1 to 5 As shown, a coal mine support beam straightening machine of the present invention includes a plurality of straightening units 200 arranged in a straight line for straightening support beams 100. The shaping unit 200 includes two parallel movable beams 1 201 and two movable beams 202. The two movable beams 1 201 and two movable beams 202 form a parallelogram structure, and the adjacent sides of the parallelogram structure are rotatably connected to each other. Each movable beam 1 201 and movable beam 202 is equipped with a hydraulic cylinder 203, and the hydraulic cylinder 203 is equipped with a piston rod 204. The piston rod 204 contacts the outer wall of the support beam 100 through the extrusion body 205. When the parallelogram structure deforms, the four extrusion bodies 205 compress the four faces of the support beam 100 and deform it.

[0022] A number of linearly arranged shaping units 200 can perform shaping processing on different positions of the support beam 100. This processing method mainly restores the cross-sectional shape of the support beam 100 to a square. Of course, a small number of shaping units 200 can also be used to gradually move the support beam 100 on the shaping units 200, thereby gradually shaping different positions of the support beam 100; for example... Figure 1 As shown, since the support beam 100 is bent as a whole, the shaping unit 200 can be directly pushed by the hydraulic cylinder to move in the opposite direction of the bending of the support beam 100, so that the support beam 100 can be restored to a straight shape. Then, the shaping unit 200 is used to shape the cross-sectional shape of the support beam 100, thereby realizing the comprehensive shaping of the support beam 100 and restoring the support beam 100 to its initial shape. Since the cross-section of the support beam 100 includes four surfaces, four extrusion bodies 205 can be set to extrude each surface of the support beam 100. The relative movement of the four extrusion bodies 205 causes the shape enclosed by the four extrusion bodies 205 to deform, thereby causing the support beam 100 to deform. The increase or decrease of the oil in the hydraulic cylinder 203 causes the piston rod 204 to push the extrusion body 205 to move, so as to realize the extrusion work on each side of the cross-section of the support beam 100.

[0023] During the shaping process, the support beam 100 passes through the space between the four extrusion bodies 205 on the shaping unit 200. Then, by simultaneously supplying hydraulic oil to each cylinder 203, the piston rod 204 and the extrusion bodies 205 move, causing the four extrusion bodies 205 to press and fix the four sides of the support beam 100. Since the support beam 100 is in a deformed state, the orientation of the four extrusion bodies 205 needs to correspond to each side of the support beam 100. Therefore, the initial shape formed by the four extrusion bodies 205 is an inclined parallelogram. Correspondingly, the two movable beams 1-2... 01 and the two movable beams 202 are also inclined. After the four extrusion bodies 205 are fixed, the parallelogram structure formed by the two movable beams 201 and 202 is deformed. That is, the two movable beams 201 move in parallel relative to each other and the two movable beams 202 move in parallel relative to each other. The parallelogram structure gradually transforms into a square. At this time, the shape enclosed by the four extrusion bodies 205 also transforms into a square. The four extrusion bodies 205 simultaneously extrude the four faces of the support beam 100 and gradually restore it to a square shape, thereby completing the shaping of the cross-sectional shape of the support beam 100.

[0024] In some embodiments, the two movable beams 201 can be replaced with linear guides and the two movable beams 202 can be replaced with arc-shaped guides, or the two movable beams 201 can be replaced with arc-shaped guides and the two movable beams 202 can be replaced with linear guides. In this way, with the extrusion body 205 corresponding to the linear guide as the reference, the direction of the extrusion body 205 corresponding to the arc-shaped guide gradually changes when it moves, thereby gradually restoring the cross-section of the support beam 100 to a square shape. Of course, since the vertical distance between the extrusion bodies 205 on the two linear guides is fixed, the cross-section of the support beam 100 will produce a small amount of inward concavity when deformed. This deformation has little impact on the overall support beam 100 and is within the allowable range.

[0025] In practical use, such as Figure 1 As shown, since the support beam 100 is composed of two π-shaped beams joined together, it has extended edges on the upper left, upper right, lower left and lower right sides of the cross section of the support beam 100. These extended edges can be processed in the forward direction by the relative extrusion of the side wall of an extrusion body 205 and the working surfaces of adjacent extrusion bodies 205.

[0026] By employing the deformation motion of a parallelogram structure composed of two movable beams 201 and two movable beams 202, several extrusion bodies 205 are used to extrude each surface of the cross-section of the support beam 100, gradually restoring it from a parallelogram to a square. This achieves the shaping and processing of the cross-sectional shape of the support beam 100, making it easier to restore the support beam 100 to its initial shape, improving the shaping effect of the support beam 100 and the supporting strength of the support beam 100 after shaping.

[0027] Because the parallelogram structure formed by the two movable beams 201 and 202 will cause the opposing extrusion bodies 205 to misalign and separate during deformation, if the extrusion bodies 205 are fixed relative to the corresponding movable beams 201 or 202, they will slide relative to the outer wall of the support beam 100, or even separate from each other. This will prevent the four extrusion bodies 205 from making full contact with the four sides of the support beam 100 section, thus making subsequent shaping work impossible. Figure 5 For example, when the two vertically distributed movable beams 201 move relative to each other, the two corresponding extrusion bodies 205 move relative to each other, and the two extrusion bodies 205 maintain the extrusion state on the upper and lower surfaces of the support beam 100. However, if the extrusion bodies 205 on the two horizontally distributed movable beams 202 are fixedly connected to the movable beams 202, then the extrusion bodies 205 will move relative to the outer wall of the support beam 100. To solve this problem, the movable beam 201 is horizontal and fixedly connected to the corresponding hydraulic cylinder 203; the movable beam 202 is vertical or inclined, and the hydraulic cylinder 203 on it is slidably connected to the movable beam 202 through the movable sleeve 206; by using the movable sleeve 206 to slide on the corresponding movable beam 202, the extrusion bodies 205 can be kept relatively stationary and in contact with the surface of the support beam 100.

[0028] It should be noted that a movable sleeve 206 can also be provided on the movable beam 201 so that the four extrusion bodies 205 can maintain a relatively stationary and contacting state with the four surfaces on the support beam 100. When the movable sleeve 206 moves on the movable beam 202, since the movable beam 202 tilts and rotates, it can be approximately regarded as the extrusion bodies 205 on the movable sleeve 206 rotating with the center point of their working surfaces as the rotation point. Thus, the extrusion bodies 205 only tilt and rotate without moving.

[0029] Since the parallelogram structure formed by the two movable beams 201 and 202 requires the movable sleeve 206 to slide on the corresponding movable beam 202 during deformation, a pushing force can be provided to the movable sleeve 206 as follows: Figure 5 In the structure shown, each movable beam 201 is equipped with a secondary beam 207, which is rotatably connected to the corresponding movable sleeve 206 via a secondary rod 208. When the movable beam 202 rotates, it will drive the movable sleeve 206 to move synchronously. The secondary rod 208 will tilt and push the movable sleeve 206 to slide on the movable beam 202, thereby keeping the position of the extrusion body 205 on the movable sleeve 206 stationary, and the extrusion body 205 only rotates. This arrangement simplifies the structure and eliminates the need for a separate power source for the movement of the movable sleeve 206.

[0030] When it is necessary to reshape support beams 100 of different specifications, such as when the aspect ratio of the parallelogram of the support beam 100 cross-section is constant, but its length and width dimensions change, movable beam 1 201 and movable beam 202 can still reshape the support beam 100. When the aspect ratio of the parallelogram of the support beam 100 cross-section changes, it is necessary to simultaneously adjust the length ratio of movable beam 1 201 and movable beam 202, specifically as follows: Figure 5 As shown, the second movable beam 202 is composed of splice body 1 209 and splice body 210 interlocked, and the joint length of splice body 1 209 and splice body 210 can be adjusted. By adjusting the length of the overlapping area of ​​splice body 1 209 and splice body 210, the overall length of the splice body 1 209 and splice body 210 can be adjusted, that is, the length value of the second movable beam 202 can be adjusted, which facilitates the adjustment of the length ratio of the first movable beam 201 and the second movable beam 202.

[0031] In practical use, the length of movable beam 201 can be adjusted, or both movable beam 201 and movable beam 202 can be made adjustable.

[0032] Based on the above implementation, the mating surfaces of splice body one 209 and splice body two 210 are Z-shaped. Splice body one 209 is provided with several threaded rods 211, and splice body two 210 is provided with several long grooves 212. The length direction of the long grooves 212 is parallel to the length direction of the movable beam two 202. A notch 213 is provided in the long groove 212. The threaded rods 211 pass through the corresponding notch 213 and extend into the long groove 212. A fastening bolt 214 that cooperates with the threaded rods 211 is provided in the long groove 212.

[0033] like Figure 6 and Figure 7 As shown, the ends of splice body 1 209 and splice body 210 are both set in a Z-shape. Using this shape, splice body 1 209 and splice body 210 can be connected in a Z-shape. At this time, splice body 1 209 and splice body 210 can be coplanar, thereby ensuring that the movable sleeve 206 can slide between splice body 1 209 and splice body 210. Several threaded rods 211 and several long grooves 212 can be arranged in an array, and the length direction of the long grooves 212 and the notches 213 are parallel to the length direction of the movable beam 202. This allows the position of the threaded rods 211 in the long grooves 212 to adjust the length of the overlapping area of ​​splice body 1 209 and splice body 210, which facilitates the adjustment of the overall length of the movable beam 202. At the same time, this structure can easily hide the threaded rods 211 and the fastening bolts 214 in the long grooves 212 to avoid them interfering with or hindering the movement of the movable sleeve 206.

[0034] Optimized from the above implementation, such as Figures 8 to 11As shown, each movable beam 201 is equipped with an oil distribution unit 300. The oil distribution unit 300 includes an oil guide box 301, a main oil pipe 302, several oil guide chambers 303 arranged side by side in the oil guide box 301, and several auxiliary oil pipes 304 arranged on the oil guide box 301. The main oil pipe 302 is used to supply oil to the several oil guide chambers 303. Each oil guide chamber 303 is provided with a movable body 305. An oil guide groove 306 is provided on the outer wall of the movable body 305. One side of each of the oil guide chambers 303 is open, and a connecting plate 308 is provided at the opening. The connecting plate 308 is fixedly connected to the movable bodies 305. The connecting plate 308 is rotatably connected to the movable beam 202 through a push-pull plate 309. The oil guide box 301 is connected to the movable beam 202 through a number of splicing bodies 210. A groove 311 is provided on the inner wall of the oil guide chamber 303 corresponding to the oil guide groove 306, and the inner wall at least partially blocks the oil guide groove 306. One end of the auxiliary oil pipe 304 is connected to the oil guide groove 306, and the other end is connected to the corresponding oil cylinder 203.

[0035] In this invention, the oil guide chamber 303 is rectangular in shape, and several oil guide chambers 303 are arranged along the width direction of the oil guide chamber 303. One end of the oil guide chamber 303 is open in the length direction and is used to place the connecting plate 308. The other end of the oil guide chamber 303 is connected to the main oil pipe 302. A portion of the inner wall of the oil guide chamber 303 corresponding to the oil guide groove 306 is used to set the groove 311, and another portion of the inner wall is used to cover at least a portion of the oil guide groove 306. The auxiliary oil pipe 304 is connected and installed in this portion of the inner wall. In the domain; the connecting plate 308 is shaped like a rake tooth, with each rake tooth fixedly connected to a movable body 305. In its natural state, the pull of the elastic body 310 on the main oil pipe 302 causes the area between two adjacent rake teeth on the connecting plate 308 to abut against the end of the oil guide box 301, thereby limiting the position of the movable beam 202 and several movable bodies 305. In this state, part of the oil guide groove 306 is located within the groove 311, that is, the auxiliary oil pipe 304 communicates with the interior of the oil guide chamber 303 through the oil guide groove 306; such as Figure 9 As shown, the movable body 305 can block the internal space of the oil guide chamber 303, so that the left and right sides of the movable body 305 are isolated from each other, thereby preventing the oil in the oil guide chamber 303 from being discharged directly through the opening of the oil guide chamber 303.

[0036] During use, oil is supplied to each guide chamber 303 through the main oil pipe 302. The oil in the guide chamber 303 enters the guide groove 306 through the groove 311 and is then guided into the corresponding oil cylinder 203 through the auxiliary oil pipe 304, thereby controlling the movement of the extrusion body 205. After several extrusion bodies 205 have completed the clamping work on the support beam 100, oil can no longer enter the auxiliary oil pipe 304. At this time, the increase of oil in the guide chamber 303 will push the moving body 305 to move, and the inner wall of the guide chamber 303 gradually... The oil guide groove 306 is fully covered, thereby isolating the oil guide chamber 303 from the auxiliary oil pipe 304. The movement of the movable body 305 will push the corresponding movable beam 202 to move through the connecting plate 308 and the push-pull plate 309, thereby deforming the shape formed by several extrusion bodies 205. At this time, the elastic body 310 undergoes elastic deformation. Using the above structure, the clamping and shaping effects of the extrusion body 205 can be achieved through the continuous oil supply of the main oil pipe 302. Its structure is simple and easy to operate.

[0037] It should be noted that after the support beam 100 is shaped, it can be directly removed for unloading. To reduce the friction between the extrusion body 205 and the support beam 100, several rotating structures such as balls and rollers can be set on the working surface of the extrusion body 205. Alternatively, lubricating oil can be applied to the working surface of the extrusion body 205 to reduce friction. After the support beam 100 is disassembled, the main oil pipe 302 is used to reverse the oil extraction method to restore the movable beam 1 201, movable beam 202 and extrusion body 205 to their initial positions.

[0038] Based on the above implementation, such as Figures 8 to 12 As shown, a fixed cylinder 312 is provided on the side wall of the oil guide tank 301, and an oil distribution groove 313 is provided on the side wall of the fixed cylinder 312. The main oil pipe 302 is installed on the oil distribution groove 313, and the main oil pipe 302, the oil distribution groove 313, the fixed cylinder 312 and the oil guide tank 301 are connected in sequence. The fixed cylinder 312 is divided into several chambers corresponding to each oil guide chamber 303, and each chamber is connected to the oil distribution groove 313. The fixed cylinder 312 is provided with a column 314 and a filler 315. The filler 315 slides in contact with part of the outer wall of the column 314. The column 314 rotates in the fixed cylinder 312. Part of the outer wall of the column 314 in each chamber is slidably inserted with a partition 316. The two ends of the filler 315 along the circumference of the fixed cylinder 312 are respectively set as a drainage slope 318 and a guide slope 319. The drainage slope 318 is used to drain the oil entering the fixed cylinder 312, and the guide slope 319 is used to guide the partition 316 and make it slide into the column 314.

[0039] The space between two adjacent partitions 316 can form a closed space in the corresponding chamber and be used to transport oil. The oil distribution groove 313 is parallel to the fixed cylinder 312 and is connected to each chamber in the fixed cylinder 312, so that the main oil pipe 302 can guide oil into each chamber and the oil guide chamber 303. Using the filler 315, at the position where the column 314 contacts the filler 315, the partition 316 will slide into the column 314, and at the position away, the partition 316 will naturally extend, so as to transport oil using the closed space between two adjacent partitions 316. The specific arrangement of the column 314 and the partition 316 can be that an installation space is opened in the column 314, and several spring pieces 317 are set in the installation space. The end of the partition 316 slides into the installation space and connects with the spring pieces 317, thereby realizing the automatic movement of the partition 316.

[0040] When oil is supplied, the oil in the oil distribution tank 313 flows into each chamber of the fixed cylinder 312. The oil in each chamber exerts a pushing force on the baffle 316, causing the column 314 to rotate. The oil between adjacent baffles 316 flows synchronously with the column 314, thus guiding the oil into the corresponding oil guide chamber 303. When the baffle 316 moves to the position of the guide ramp 319, the guide ramp 319 guides the baffle 316, causing the baffle 316 to slide into the column 314. This prevents the oil in the oil guide chamber 303 from re-entering the fixed cylinder 312. This facilitates unidirectional oil delivery. When the baffle 316 on the column 314 moves away from the filler 315, the baffle 316 extends again, thus achieving continuous oil delivery. Using the above structure, the amount of oil delivered by each auxiliary oil pipe 304 can be consistent, thereby making the moving distance of several extrusion bodies 205 equal, achieving an equidistant movement effect. This facilitates the positioning of the support beam 100 and avoids the situation where several auxiliary oil pipes 304 are directly supplied with oil through the main oil pipe 302, causing the auxiliary oil pipes 304 to be interconnected and making it impossible to fix the position of the support beam 100.

[0041] It should be noted that, with the above structure, the main oil pipe 302 can directly deliver oil into the oil cylinder 203, and ensure that the amount of oil delivered into each oil cylinder 203 is equal; the rotation of the column 314 can be driven by the oil, or a motor can be directly installed on the outer wall of the fixed cylinder 312 to provide power to the column 314.

[0042] Based on the above implementation, such as Figure 10As shown, the face of the movable body 305 facing the fixed cylinder 312 is set as a slope 307. When the main oil pipe 302 pumps oil in the reverse direction, the end face of the movable body 305 will move toward the position where the guide oil tank 301 and the fixed cylinder 312 are connected. In order to avoid the end face of the movable body 305 blocking the connection position, the end face of the movable body 305 can be set into the shape of slope 307 so that the guide oil tank 301 and the fixed cylinder 312 can always be connected.

[0043] Based on the above implementation, such as Figures 2 to 3 As shown, the number of shaping units 200 is set to two groups; The shaping unit 200 also includes a movable table 400, on which a movable beam 201 located on the lower side is rotatably mounted, and the movable beam 201 and the movable table 400 are rotatably connected by several hydraulic cylinders 401.

[0044] Because the support beam 100 is bent, when the support beam 100 is installed on the two shaping units 200, the direction of the two shaping units 200 needs to be consistent with the bending direction of the support beam 100 in order to achieve the assembly work. After the support beam 100 is assembled, the oil cylinder 401 can be used to pull the shaping unit 200 to rotate on the movable table 400, so that the two shaping units 200 straighten the bent support beam 100, thereby achieving the shaping treatment of the support beam 100 in the length direction.

[0045] Based on the above implementation, such as Figure 2 As shown, the shaping machine also includes a machine base 500, with two movable tables 400 mounted on the machine base 500. The movable tables 400 are movable on the machine base 500 along the vertical line connecting the two movable tables 400. The machine base 500 can be used to support the two shaping units 200. The movement of the movable tables 400 can be powered by the drive module 501. By adjusting the position of the two shaping units 200 on the machine base 500, it is convenient to straighten different bending positions on the support beam 100.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine support beam shaping machine, characterized in that, It includes several straightening units arranged in a straight line for straightening the support beam; The shaping unit includes two parallel movable beams, namely, the first movable beam and the second movable beam. The first movable beam and the second movable beam form a parallelogram structure, and the adjacent sides of the parallelogram structure are rotatably connected to each other. Each movable beam is equipped with a hydraulic cylinder, and a piston rod is provided on the hydraulic cylinder. The piston rod contacts the outer wall of the support beam through an extrusion body. When the parallelogram structure deforms, the four extrusion bodies compress the four faces of the support beam and deform it.

2. The coal mine support beam shaping machine according to claim 1, characterized in that, The movable beam is horizontal and is fixedly connected to the corresponding hydraulic cylinder; The second movable beam is set vertically or inclined, and the oil cylinder on it is slidably connected to the second movable beam through a movable sleeve.

3. The coal mine support beam shaping machine according to claim 2, characterized in that, Each of the movable beams is provided with a secondary beam, which is rotatably connected to the corresponding movable sleeve via a secondary rod.

4. A coal mine support beam shaping machine according to claim 2, characterized in that, The second movable beam is composed of splice body one and splice body two interlocked, and the connection length between splice body one and splice body two is adjustable.

5. A coal mine support beam shaping machine according to claim 4, characterized in that, The mating surfaces of the first splice body and the second splice body are Z-shaped. The first splice body is provided with several threaded rods, and the second splice body is provided with several long grooves. The length direction of the long grooves is parallel to the length direction of the second movable beam. A notch is provided in the long groove. The threaded rods pass through the corresponding notches and extend into the long grooves. A fastening bolt that cooperates with the threaded rods is provided in the long grooves.

6. A coal mine support beam shaping machine according to claim 1, characterized in that, Each of the movable beams is equipped with an oil distribution unit. The oil distribution unit includes an oil guide tank, a main oil pipe, several oil guide chambers arranged side by side in the oil guide tank, and several auxiliary oil pipes arranged on the oil guide tank. The main oil pipe is used to supply oil to the several oil guide chambers. Each of the oil guiding chambers is provided with a movable body, and an oil guiding groove is formed on the outer wall of the movable body. One side of each of the oil guiding chambers is open, and a connecting plate is provided at the opening position. The connecting plate is fixedly connected to the movable bodies. The connecting plate is rotatably connected to the movable beam two through a push-pull plate. The oil guiding box is connected to the movable beam two through a plurality of splicing bodies two. A groove is provided on the inner wall of the oil guide chamber corresponding to the oil guide groove, and the inner wall at least partially covers the oil guide groove. One end of the auxiliary oil pipe is connected to the oil guide groove, and the other end is connected to the corresponding oil cylinder.

7. A coal mine support beam shaping machine according to claim 6, characterized in that, A fixed cylinder is provided on the side wall of the oil guide tank, and an oil distribution groove is provided on the side wall of the fixed cylinder. The main oil pipe is installed on the oil distribution groove, and the main oil pipe, the oil distribution groove, the fixed cylinder and the oil guide tank are connected in sequence. The fixed cylinder is divided into several chambers corresponding to each of the oil guiding chambers, and each chamber is connected to the oil distribution groove. A column and a filler are provided inside the fixed cylinder. The filler slides in contact with part of the outer wall of the column. The column rotates inside the fixed cylinder. Part of the outer wall of the column inside each chamber is slidably inserted with a partition. The two ends of the filler along the circumference of the fixed cylinder are respectively set as a drainage slope and a guide slope. The drainage slope is used to drain the oil entering the fixed cylinder, and the guide slope is used to guide the partition and make it slide into the column.

8. A coal mine support beam shaping machine according to claim 6, characterized in that, The surface of the movable body facing the fixed cylinder is designed as a slope.

9. A coal mine support beam shaping machine according to claim 1, characterized in that, The number of shaping units is set to two groups; The shaping unit also includes a movable platform, on which the movable beam located on the lower side is rotatably mounted, and the movable beam and the movable platform are rotatably connected by several hydraulic cylinders.

10. A coal mine support beam shaping machine according to claim 9, characterized in that, The shaping machine also includes a machine platform, and both movable platforms are disposed on the machine platform. The movable platforms are movable on the machine platform along the vertical line connecting the two movable platforms.

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