Tilting gear

Abstract

The utility model discloses a tilting gear which comprises a tilting frame used for placing a steel coil; the tipping hydraulic cylinder is used for driving the tipping frame to turn over by 90 degrees, so that the steel coil is turned over from a horizontal coil to a vertical coil or turned over from the vertical coil to the horizontal coil; the clamping device comprises a pair of clamping mechanisms which are fixedly installed on the two sides of the tipping frame respectively, any clamping mechanism comprises a clamping hydraulic cylinder and an arc-shaped support, each arc-shaped support comprises an arc-shaped plate, a third pin shaft and a rotating arm, the arc-shaped supports are rotatably installed on the two sides of the tipping frame through the third pin shafts, the arc-shaped plates are provided with arc inner surfaces, and the rotating arms are arranged on the arc-shaped plates. And the arc-shaped support is hinged to the third pin shaft, cylinder barrels of the clamping hydraulic cylinders are rotationally installed on the two sides of the tipping frame, one end of the rotating arm is hinged to the third pin shaft, and the other end of the rotating arm is hinged to the telescopic end of each clamping hydraulic cylinder. According to the overturning device, the steel coil is clamped in the overturning process through the clamping device, and the horizontal coil can be stably overturned into the vertical coil when the steel coil overflows.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical equipment technical field, more particularly, relate to a turn over machine. BACKGROUND

[0002] In the process of transporting hot-rolled steel coil, sometimes it is needed to turn the steel coil from a "lying coil" state to a "standing coil" state, or vice versa; the equipment for completing this work is a turn over machine. In the production process of steel coil, there is a certain amount of overflow according to different steel types, plate shape quality and coiling accuracy, which is specifically manifested as that the inner circle or the outer circle of the steel coil protrudes from the end surface of the steel coil, and the serious one reaches ± 150 mm.

[0003] For the steel coil with a large amount of overflow, when it is needed to be turned from a "lying coil" to a "standing coil", the contact between the steel coil and the rotating arm changes from the ideal "steel coil end surface contact" to "local narrow ring contact" or one-sided contact. In the process of turning the steel coil with a large amount of overflow into a "standing coil", the phenomenon of turning over the steel coil is easy to occur, which is not conducive to the production stability.

[0004] The turning over of the steel coil will cause damage to the machinery and hydraulic equipment, large-area damage to the surrounding equipment, instruments and cables, and even damage to the civil foundation, which will bring great hidden dangers to the safety of the surrounding equipment and personnel. INVENTION CONTENTS

[0005] The utility model discloses a novel turn over machine with a turning over stabilizing device, which can stably turn a lying coil into a standing coil when the steel coil has overflow.

[0006] A turn over machine comprises:

[0007] A tilting frame is used for placing a steel coil.

[0008] A tilting hydraulic cylinder is used for driving the tilting frame to turn over by 90°, so that the steel coil is turned over from a lying coil into a standing coil, or from a standing coil into a lying coil.

[0009] A clamping device comprises a pair of clamping mechanisms, which are fixedly installed on the two sides of the tilting frame respectively, and any clamping mechanism comprises a clamping hydraulic cylinder and an arc-shaped support. The arc-shaped support comprises an arc-shaped plate, a third pin shaft and a rotating arm. The arc-shaped support is rotatably installed on the two sides of the tilting frame through the third pin shaft. The arc-shaped plate has a circular arc inner surface, which is used for abutting and clamping the outer periphery of the steel coil. The arc-shaped support is hinged to the third pin shaft. The cylinder barrel of the clamping hydraulic cylinder is rotatably installed on the two sides of the tilting frame. One end of the rotating arm is hinged to the third pin shaft, and the other end is hinged to the telescopic end of the clamping hydraulic cylinder.

[0010] Optionally, the arc-shaped support is further provided with an induction plate and a tension spring, the tension spring is fixedly installed on the arc-shaped support, one end of the induction plate has the same arc as the arc-shaped plate, the other end of the induction plate is connected with the lower end of the tension spring, the induction plate is rotatably installed on the arc-shaped plate through a fifth pin shaft, so that when the tension spring is in a free state, the induction plate rotates beyond the arc surface of the arc-shaped plate, and when the tension spring is in a maximum tension state, the induction plate rotates to coincide with the arc surface of the arc-shaped plate.

[0011] Optionally, the arc-shaped support is further provided with a clamping induction element and a release induction element, the clamping induction element is used to send a signal when the induction plate rotates to coincide with the arc surface of the arc-shaped plate, and the release induction element is used to send a signal when the induction plate rotates beyond the arc surface of the arc-shaped plate, so that the tension spring is in a free state.

[0012] Optionally, the tilting hydraulic cylinder comprises a cylinder body, a cylinder body hard pipe line, a cylinder body soft pipe line, an oil passage block, a rod cavity hydraulic lock and a rodless cavity hydraulic lock, the cylinder body pipe soft line is connected with the oil passage block, the cylinder body hard pipe line is connected with the cylinder body soft pipe line, the cylinder body hard pipe line is connected with the rod cavity of the hydraulic cylinder through the rod cavity hydraulic lock, and the cylinder body hard pipe line is connected with the rodless cavity of the hydraulic cylinder through the rodless cavity hydraulic lock.

[0013] Optionally, the end of the tilting hydraulic cylinder telescopic rod is hinged with a tilting frame, the tilting frame comprises a pair of symmetrically arranged tilting sub-frames, the pair of tilting sub-frames are fixedly connected, each tilting sub-frame comprises a right-angle frame, the right-angle frame comprises a first support arm and a second support arm connected at right angles, the pair of first support arms are used to place a lying roll, the other end of the tilting frame opposite to the right-angle frame is fixedly connected with a rotating shaft, and the rotating shaft is rotatably installed on a base.

[0014] Optionally, the tilting sub-frame is a box-shaped structure welded part.

[0015] Optionally, V-shaped blocks are fixedly installed on the mutually close edges of the pair of first support arms, and the V-shaped blocks are used to support the lying roll.

[0016] Optionally, a first bearing seat is fixedly installed on the base, the two ends of the rotating shaft are rotatably installed on the base through the first bearing seat, a coupling and an angle meter are coaxially connected in sequence on one side of one first bearing seat, and the angle meter is used to measure the angle in the tilting frame overturning process.

[0017] Optionally, a plurality of rib plates are arranged at intervals on the outer surface of the circular arc of the arc-shaped plate.

[0018] Optionally, a screw rod is threadedly installed on the arc-shaped support, and the end of the screw rod is fixedly connected with the tension spring.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] This application uses a clamping device to clamp the steel coil during the tilting process, which can stably flip the horizontal coil into a vertical coil when the steel coil has overflow.

[0021] This application uses a sensing element to detect the two extreme positions of the sensing plate, and can send a signal after the sensing plate reaches the corresponding extreme position, so that other mechanisms can avoid interference with the clamping device when they are in operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the coil receiving position of the steel turning machine according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the coil feeding position of the steel turning machine according to an embodiment of the present utility model;

[0024] Figure 3 This is a three-dimensional schematic diagram of the tilting frame described in an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the installation of the rotating shaft according to an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the installation of the tilting hydraulic cylinder described in an embodiment of the present utility model;

[0027] Figure 6 This is a front view of the clamping device described in an embodiment of the present invention;

[0028] Figure 7 This is a side view of the clamping device described in an embodiment of the present utility model;

[0029] Figure 8 for Figure 6 Sectional view along axis AA;

[0030] Figure 9 Figure 8 BB-direction sectional view;

[0031] Figure 10 for Figure 7 CC-direction sectional view;

[0032] Figure 11 for Figure 7 DD section view;

[0033] Figure 12 This is a three-dimensional schematic diagram of the arc-shaped bracket described in an embodiment of the present utility model;

[0034] Figure 13 (a) is a schematic diagram of the induction plate contacting the outer circle of the steel coil when the maximum steel coil is reached, according to an embodiment of the present invention;

[0035] Figure 13 (b) is a schematic diagram of the arc plate clamping the outer circle of the steel coil when the maximum steel coil is as described in the embodiment of this utility model;

[0036] Figure 14 (a) is a schematic diagram of the induction plate contacting the outer circle of the steel coil when the smallest steel coil is as described in the embodiment of this utility model;

[0037] Figure 14 (b) is a schematic diagram of the arc plate clamping the outer circle of the steel coil when the smallest steel coil is as described in the embodiment of this utility model;

[0038] Figure 15 This is a schematic diagram showing the state of the clamping device when the steel coil is released according to an embodiment of the present invention. Detailed Implementation

[0039] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Hinged connection" refers to a connection where the two parts can rotate relative to each other after connection. The directional terms mentioned in the embodiments of this application, such as "upper," "lower," "inner," and "outer," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0041] The steel-turning machine in this embodiment, such as Figure 1 As shown, the device includes a base 1, which is fixed to a foundation or steel structure platform by fasteners; a tilting frame 2, which is mounted on the base 1 via a rotating shaft 3 and can rotate together with the rotating shaft 3, and has an area for placing the steel coil to be tilted; a tilting hydraulic cylinder 4, which is mounted on the base and is used to drive the tilting frame to rotate 90°, so that the steel coil is flipped from a horizontal coil to a vertical coil, or from a vertical coil to a horizontal coil; and a clamping device 5, which is used to clamp the steel coil during the tilting process, so that the steel coil can be stably tilted with the tilting frame.

[0042] The base 1 is a steel structure fixed on a foundation or a steel structure platform by anchor bolts, and a bearing seat is fixedly installed on the base 1 to install the rotating shaft 3 and the tilting hydraulic cylinder 4.

[0043] Please refer to Figure 3 , the tilting frame 2 includes a pair of symmetrically arranged tilting sub-frames, and the pair of tilting sub-frames are symmetrically arranged at a certain interval and fixedly connected as a whole. Each tilting sub-frame includes a right-angle frame including a first support arm 206 and a second support arm 203 connected at right angles. A pair of first support arms 206 are used to place a lying roll, and the lying roll is horizontally supported on the upper ends of the pair of first support arms, and the end surface of the lying roll is in contact with the second support arm 203. V-shaped blocks 201 can be fixedly installed on the mutually close edge upper ends of the pair of first support arms 206, and the two V-shaped blocks 201 have mutually inclined downward surfaces, and the lying roll is supported between the two V-shaped blocks 201, and the inclined surface directly contacts the outer circle of the lying roll, so that more stable support can be provided for the lying roll.

[0044] The rotating shaft 3 is fixedly connected to the other end of the tilting frame 2 opposite to the right-angle frame, the rotating shaft 3 penetrates through the pair of tilting sub-frames and is fixedly connected thereto, and the entire tilting frame 2 can rotate together with the rotating shaft 3. Specifically, the tilting frame 2 can rotate together with the rotating shaft 3 to a state where the first support arm 206 is horizontal and the second support arm 203 is vertical, and at this time, the lying roll can be placed on the first support arm. The tilting frame 2 can also rotate together with the rotating shaft 3 to a state where the first support arm 206 is vertical and the second support arm 203 is horizontal, so as to turn the lying roll placed between the first support arms into a standing roll. Figure 1 、 Figure 2 are the receiving roll state and the feeding roll state of the roll turnover machine respectively, and the turnover process is the process of turning the lying roll shown in Figure 1 into the standing roll shown in Figure 2 .

[0045] To improve the structural strength of the tilting sub-frame, the structure thereof can adopt a box type structure, such as the 204 in Figure 3 .

[0046] A first bearing seat is fixedly installed on the base 1, as shown in Figure 4 , the rotating shaft 3 is rotatably installed on the base 1 through the first bearing seat at both ends, the rotating shaft 3 is fixedly connected with the tilting frame 2, for example, the body of the rotating shaft 3 is welded and fixed with the box structure 204 in the tilting frame 2, so as to rotate together with the tilting frame 2.

[0047] Specifically, the first bearing seat comprises a bearing cover 301, a bearing 302, a transparent cover 303, and a spacer ring 305. Further, on one side of the first bearing seat, a connecting shaft 306, a shaft coupling 307, and an angle gauge 308 are coaxially connected in sequence. The angle gauge is used to measure the angle during the overturning process, facilitating the control of the equipment. In order to protect the angle gauge, an angle gauge shroud 309 can be provided outside the angle gauge.

[0048] As shown in Figure 5 , one end of the tilting hydraulic cylinder 4 is mounted on the base 1 through the second bearing seat, and the other end is connected with the tilting frame 2 through a head pin shaft 408 to provide power for tilting. Specifically, the cylinder body of the tilting hydraulic cylinder 4 is rotatably mounted on the base 1 through the second bearing seat, for example, a second pin shaft 406 extends radially away from the cylinder body, and the second pin shaft 406 is mounted on the corresponding second bearing seat through a bearing, which enables the tilting hydraulic cylinder 4 to rotate.

[0049] The end of the telescopic end of the tilting hydraulic cylinder 4 is fixedly connected with an ear ring, and the tilting hydraulic cylinder 4 is hingedly connected with the tilting frame through the head pin shaft 408 penetrating the tilting frame and the ear ring. As shown in Figure 1 , when the telescopic end is retracted, the first support arm 206 of the tilting frame 2 is in a horizontal state, and the second support arm 203 is in a vertical state, at which time a lying roll can be placed between the first support arms 206. As shown in Figure 2 , when the telescopic end is extended, the tilting frame 2 rotates with the rotating shaft 3 to a state in which the first support arm 206 is in a vertical state and the second support arm 203 is in a horizontal state, thereby overturning the lying roll placed between the first support arms into a standing roll.

[0050] In some embodiments, as shown in Figure 5 , the tilting hydraulic cylinder 4 comprises a rodless cavity hydraulic lock 401, a cylinder body hard pipe line 402, a cylinder body 403, a cylinder body soft pipe line 404, an oil passage block 405, a rod cavity hydraulic lock 407, and a head pin shaft 408. The tilting hydraulic cylinder 4 is hingedly connected with the tilting frame 2 at the end of the telescopic rod through the head pin shaft 408. The cylinder body pipe soft line is connected with the oil passage block 405, the cylinder body hard pipe line is connected with the cylinder body soft pipe line, and the cylinder body hard pipe line is respectively connected with the rod cavity and the rodless cavity of the hydraulic cylinder to deliver hydraulic oil into the hydraulic cylinder. The specific hydraulic cylinder oil passage control is not described here. In the process of roll turning, if special circumstances require shutdown, the tilting frame 2 can be stopped at the current position by controlling the rod cavity hydraulic lock 407 and the rodless cavity hydraulic lock 401, and the hydraulic cylinder is kept pressure on both sides to ensure the safety of the equipment.

[0051] The clamping device 5 comprises a pair of clamping mechanisms, as shown in Figure 6 , which are respectively installed on both sides of the tilting frame 2. Any clamping mechanism comprises a clamping hydraulic cylinder 501 and an arc-shaped support 503. Figure 7The schematic diagram of the clamping device for the maximum steel coil diameter φD(max) and the minimum steel coil diameter φD(min) is shown.

[0052] As shown in Figure 12 The arc-shaped support 503 includes an arc-shaped plate 50301, a rib plate 50302, a third pin shaft 50303, and a swing arm 50304. The arc-shaped plate 50301 has a circular arc inner surface for abutting and clamping the outer periphery of the steel coil, and a plurality of rib plates 50302 are arranged on the circular arc outer surface of the arc-shaped plate to strengthen the arc-shaped plate 50301.

[0053] Each of the two sides of the tipping frame 2 is provided with a pair of mounting frames 202, and a third bearing seat 502 is mounted on each mounting frame 202. The third pin shaft 50303 is hinged to the arc-shaped support and penetrates the end of the arc-shaped support to be mounted on the pair of third bearing seats 502, so that the third pin shaft 50303 can rotate. As shown in Figure 11 A fourth bearing seat 516 is also fixedly connected to the two sides of the tipping frame 2, and the cylinder barrel of the clamping hydraulic cylinder is rotatably mounted on the fourth bearing seat 516 through a shaft sleeve 517. The swing arm 50304 is also hinged to the third pin shaft 50303, one end of the swing arm 50304 is hinged to the third pin shaft 50303, and the other end is hingedly connected to the telescopic end of the clamping hydraulic cylinder 501 through a fourth pin shaft 515. By pushing and pulling the clamping hydraulic cylinder 501, the swing arm 50304 can be rotated, thereby rotating the third pin shaft 50303 fixedly connected thereto, so that the arc-shaped support 503 fixedly connected to the third pin shaft 50303 rotates together, thereby clamping or loosening the steel coil.

[0054] As shown in Figures 8 to 11 In addition, an induction plate 504, a clamping induction element 505, a screw rod 506, a tension spring 508, a fifth pin shaft 509, and a release induction element 510 are arranged on the arc-shaped plate. Specifically, a bracket 507 can be mounted on two rib plates 50302 through an angle iron 50306, the screw rod 506 is mounted on the bracket 507, and the end of the screw rod 506 penetrates the bracket 507 and is fixedly connected to the upper end of the tension spring 508. The position of the tension spring 508 can be adjusted by rotating the screw rod 506. The induction plate 504 is mounted on the arc-shaped plate by penetrating the induction plate 504 through the fifth pin shaft 509, so that the induction plate 504 can rotate around the fifth pin shaft 509. Specifically, a fifth bearing seat, a shaft sleeve 511, a connecting bolt 512, and a bracket 513 can be fixedly connected to the arc-shaped plate through a support plate 50307. The fifth bearing seat is mounted on the upper end of the bracket 513 on the arc-shaped plate through the connecting bolt 512, and the fifth pin shaft 509 is mounted on the fifth bearing seat through the shaft sleeve 511.

[0055] One end of the induction plate 504 has the same curvature as the arc-shaped plate, and the other end is connected with the lower end of the tension spring. When the induction plate is in a free state, the one end thereof protrudes from the inner surface of the arc-shaped plate, which is one limit position thereof, and when the induction plate contacts the outer periphery of the steel coil, the induction plate is pushed by the outer periphery of the steel coil to be flush with the curvature of the arc-shaped plate, at which time the tension spring is elongated, which is another limit position thereof. The surface of the arc-shaped plate contacting the steel coil and the surface of the induction plate contacting the steel plate are both arc-shaped, so that the arc-shaped surface of the induction plate can coincide with the inner arc-shaped surface of the arc-shaped support when the maximum and minimum steel coils are in the clamped state.

[0056] Figure 13 (a) is a schematic view of the induction plate contacting the outer periphery of the steel coil when the maximum steel coil is in the clamped state according to the embodiment of the utility model; Figure 13 (b) is a schematic view of the arc-shaped plate clamping the outer periphery of the steel coil when the maximum steel coil is in the clamped state according to the embodiment of the utility model; Figure 14 (a) is a schematic view of the induction plate contacting the outer periphery of the steel coil when the minimum steel coil is in the clamped state according to the embodiment of the utility model; Figure 14 (b) is a schematic view of the arc-shaped plate clamping the outer periphery of the steel coil when the minimum steel coil is in the clamped state according to the embodiment of the utility model. The clamping induction element 505 and the releasing induction element 510 are arranged at positions corresponding to the two limit positions of the induction plate on the induction plate, wherein the clamping induction element 505 is arranged at a position beside the position at which the inner arc-shaped surface of the arc-shaped plate coincides with the induction plate 504, so that the clamping induction element 505 can detect that the induction plate is at the position, at which time it is indicated that the clamping device is in the clamped state. The releasing induction element 510 is arranged at a position beside the position at which the induction plate 504 protrudes from the inner arc-shaped surface of the arc-shaped plate when the tension spring is in the free state, at which time it is the maximum position at which the induction plate protrudes outward, at which time it is indicated that the clamping device is in the releasing state.

[0057] The clamping and releasing states of the clamping induction element 505 and the releasing induction element 510 are sensed, and corresponding signals are sent, so that when other structures are in motion after the corresponding signals are obtained, interference can be avoided according to the state of the clamping mechanism, and the safety of the equipment operation is ensured.

[0058] After the lying coil is placed on the first support arm 206, the end surface of the lying coil abuts against the second support arm 203, the clamping hydraulic cylinder drives the arc-shaped support until the inner surface of the arc-shaped plate contacts and extrudes the outer periphery of the steel coil; during the rolling process, the clamping hydraulic cylinder always applies pressure to the steel coil, and the clamping force formed thereby can improve the safety during the rolling process.

[0059] The action flow of the present rolling machine is as follows: the lying coil is placed on the first support arm, the end surface of the lying coil abuts against the second support arm → the clamping device presses the steel coil → the steel coil is rolled into a standing coil → the clamping device releases the steel coil → the subsequent equipment takes away the steel coil → the rolling machine returns to the original position and waits for the next steel coil.

[0060] Figure 15After the turnover action is completed, the steel coil is in a vertical state, and is ready to be handed over to the next step of the transport structure for coiling. At this time, the hydraulic cylinder stroke is 0, the inductive element 510 sends a signal to remind that the other components should maintain the necessary safety distance A from the maximum outer circle of the steel coil.

[0061] Of course, the present application can also have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application. However, these corresponding changes and modifications all belong to the protection scope of the claims of the present application.

Claims

1. A tumbler, characterized in that, The application relates to a steel coil turnover device. The turnover device comprises a turnover frame for placing a steel coil, a turnover hydraulic cylinder for driving the turnover frame to overturn by 90 DEG, so that the steel coil is turned from a horizontal coil to a vertical coil or from a vertical coil to a horizontal coil, and a clamping device comprising a pair of clamping mechanisms fixedly arranged on the two sides of the turnover frame, wherein each clamping mechanism comprises a clamping hydraulic cylinder and an arc-shaped support, the arc-shaped support comprises an arc-shaped plate, a third pin shaft and a rotating arm, the arc-shaped support is rotatably arranged on the two sides of the turnover frame through the third pin shaft, the arc-shaped plate has a circular arc inner surface for abutting and clamping the outer periphery of the steel coil, the arc-shaped support is hinged to the third pin shaft, the cylinder barrel of the clamping hydraulic cylinder is rotatably arranged on the two sides of the turnover frame, one end of the rotating arm is hinged to the third pin shaft, and the other end of the rotating arm is hinged to the telescopic end of the clamping hydraulic cylinder. An inductive plate and a tension spring are arranged on the arc-shaped support, the tension spring is fixedly arranged on the arc-shaped support, one end of the inductive plate has the same curvature as the arc-shaped plate, the other end of the inductive plate is connected to the lower end of the tension spring, the inductive plate is rotatably arranged on the arc-shaped plate through a fifth pin shaft, so that when the tension spring is in a free state, the inductive plate rotates beyond the arc surface of the arc-shaped plate, and when the tension spring is in a maximum tension state, the inductive plate rotates to coincide with the arc surface of the arc-shaped plate. A clamping inductive element and a releasing inductive element are arranged on the arc-shaped support, the clamping inductive element is used for sending a signal when the inductive plate rotates to coincide with the arc surface of the arc-shaped plate, and the releasing inductive element is used for sending a signal when the inductive plate rotates beyond the arc surface of the arc-shaped plate, so that the tension spring is in a free state.

2. Turnhead according to claim 1, characterized in that The turnover hydraulic cylinder comprises a cylinder body, a cylinder body hard pipe line, a cylinder body soft pipe line, an oil passage block, a rod cavity hydraulic lock and a rodless cavity hydraulic lock, the cylinder body soft pipe line is connected to the oil passage block, the cylinder body hard pipe line is connected to the cylinder body soft pipe line, the cylinder body hard pipe line is connected to the rod cavity of the hydraulic cylinder through the rod cavity hydraulic lock, and the cylinder body hard pipe line is connected to the rodless cavity of the hydraulic cylinder through the rodless cavity hydraulic lock.

3. The roll-over machine according to claim 1, characterized in that The end of the telescopic rod of the turnover hydraulic cylinder is hinged to the turnover frame, the turnover frame comprises a pair of symmetrical turnover sub-frames, the pair of turnover sub-frames are fixedly connected, each turnover sub-frame comprises a right-angle frame, the right-angle frame comprises a first supporting arm and a second supporting arm which are connected in a right angle, a horizontal coil is placed between the pair of first supporting arms, the other end of the right-angle frame opposite to the turnover frame is fixedly connected to a rotating shaft, and the rotating shaft is rotatably arranged on a base.

4. The roll-over machine according to claim 1, characterized in that The turnover sub-frame is a box-shaped structure welded part.

5. The roll-over machine according to claim 1, characterized in that V-shaped blocks are fixedly arranged on the mutually close edge upper ends of the pair of first supporting arms, and the V-shaped blocks are used for supporting the horizontal coil.

6. A roll-over machine according to claim 5, characterised in that A first bearing seat is fixedly arranged on the base, the two ends of the rotating shaft are rotatably arranged on the base through the first bearing seat, a coupling and an angle measurer are coaxially arranged on one side of one first bearing seat in sequence, and the angle measurer is used for measuring the angle in the overturning process of the turnover frame.

7. A roll-over machine according to claim 5, characterised in that A plurality of rib plates are arranged on the circular arc outer surface of the arc-shaped plate.

8. The roll-over machine according to claim 5, characterized in that A screw rod is threadedly arranged on the arc-shaped support, and the end of the screw rod is fixedly connected to the tension spring.

9. The roll-over machine according to claim 1, characterized in that ​ 10. The roll-over machine according to claim 1, characterized in that ​

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