Tilting gear

Abstract

The invention discloses a tilting gear which is novel and reasonable in structure, supporting wheels distributed on the periphery of a turnover frame are adopted for mounting and supporting the turnover frame, the self-rotation characteristic of the supporting wheels is utilized, it is ensured that the turnover frame can rotate around the axis of the turnover frame in situ between the supporting wheels, and compared with an existing large bearing supporting and mounting turnover frame, the structural design has the advantages that the turnover frame is convenient to mount and dismount; not only is the mounting structure simplified, but also the supporting wheels adopt small rollers, so that the cost is greatly reduced, the disassembly and assembly are convenient, and the maintenance cost is low; in addition, the turnover driving system adopts a form that a driving chain is matched with a driving chain wheel, compared with a mode that a large gear ring is installed outside a turnover frame to drive rotation, the installation structure is simplified, the cost is reduced, the driving reliability is higher, and maintenance and repair are easy. In addition, the hydraulic cylinder is adopted to directly lift the clamp roller device, and compared with the scheme that a spiral elevator is adopted to lift the whole rack, the structure is simpler, the cost is lower, maintenance is easy, and meanwhile the working efficiency is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of metal processing, and relates to a turning device for rolling bar pieces, in particular to a steel turning machine. Background Art

[0002] The steel turning machine is mainly used for turning over the bar rolled products in the bar or profile production line. The common steel turning machine consists of a base, a frame lifting device, a frame, a turning frame, a turning drive system, a clamp roller device, etc. The turning frame is supported by two large bearings at the front and rear, and a large ring gear is installed on the outer ring of the turning frame. The turning drive system consists of a hydraulic motor or a servo motor, a reducer, a small gear on the output shaft of the reducer, and a large ring gear on the outer ring of the turning frame. Among them, the turning frame is supported by two large bearings, which not only has a complex installation structure, but also has high manufacturing and maintenance costs for the bearings; at the same time, the rotation of the turning frame is driven by a large gear ring, which not only has a complex installation structure, but also has high manufacturing and maintenance costs for the gears. Summary of the invention

[0003] The purpose of the present invention is to provide a new type of steel turning machine to solve the problems of the above-mentioned existing steel turning machine, in which the turning frame is supported by two large bearings and the rotation of the turning frame is driven by a large gear ring, which not only has a complex structure, but also has high manufacturing costs and high maintenance costs for large bearings and large gears.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a steel turning machine, comprising:

[0006] A frame, wherein a plurality of supporting wheels are arranged on the inner side of the frame, any one of the supporting wheels is rotatably connected to the frame, all the supporting wheels are spaced apart along the circumferential direction, and the inner circles of all the supporting wheels form a turning space;

[0007] A turning frame is movably installed in the turning space, and the outer side wall of the turning frame is in rolling contact with any one of the supporting wheels, so that the turning frame is suspended and supported in the frame through the supporting wheels;

[0008] The turning drive system comprises a driving chain, a driving sprocket and a driving source, wherein the driving chain is arranged on the inner wall or the outer wall of the turning frame, and the driving chain is arranged in an arc shape along the circumferential direction of the turning frame, the driving sprocket is rotatably installed in the frame and meshes with the driving chain, and the driving source is used to drive the driving sprocket to rotate, so as to drive the turning frame to rotate in situ around its own axis through the driving chain;

[0009] The clamp roller device is arranged on the turning frame, and is used for clamping or releasing the bar material to be rotated. The clamp roller device can rotate synchronously with the turning frame to realize the turning of the bar material to be rotated.

[0010] Preferably, the outer side wall of the flip frame is symmetrically provided with a plurality of groups of support wheels along the circumference of the flip frame, any group of support wheels includes a plurality of support wheels arranged at intervals along the axial direction of the flip frame, and the axis of any support wheel is parallel to the axis of the flip frame.

[0011] Preferably, any group of the support wheels comprises two support wheels, and the two support wheels are respectively located at two axial ends of the turning frame.

[0012] Preferably, the outer side walls at both axial ends of the flip frame are each provided with a step surface 1, the two step surfaces 1 are symmetrical in the axial direction of the flip frame, and the outer diameters of the two step surfaces 1 gradually decrease in a direction away from each other;

[0013] The outer side wall of any one of the supporting wheels is provided with a step surface 2 matched with the step surface 1, and the step surface 2 can limit the axial movement of the turnover frame.

[0014] Preferably, the driving source comprises:

[0015] A driving shaft is arranged outside the turning frame and parallel to the axial direction of the turning frame, and both ends of the driving shaft are rotatably connected to the frame; the driving sprocket is fixedly sleeved on the driving shaft;

[0016] A reducer connected to the drive shaft;

[0017] A driving motor is connected to the reducer to drive the driving shaft to rotate through the reducer.

[0018] Preferably, the flip drive system is provided with a group, and the drive shaft is coaxially arranged with a group of the support wheels, wherein the support wheels are rotatably mounted on the drive shaft.

[0019] Preferably, the clamp roller device comprises:

[0020] An upper clamping arm is arranged in the flip frame, and one end of the upper clamping arm is hinged to the flip frame;

[0021] An upper clamp roller, rotatably mounted on the other end of the upper clamp arm;

[0022] A lower clamp arm is arranged in the flip frame, the lower clamp arm and the upper clamp arm are respectively located on both sides of the axis of the flip frame, and one end of the lower clamp arm is hinged to the flip frame;

[0023] A lower clamping roller is rotatably mounted on the other end of the lower clamping arm, and the axis of the lower clamping roller is parallel to the axis of the upper clamping roller;

[0024] A hydraulic cylinder 1, whose top end is hinged to the upper clamp arm and whose bottom end is hinged to the lower clamp arm, is used to drive the upper clamp roller and the lower clamp roller to move closer to or away from each other, so as to clamp or release the bar to be rotated.

[0025] Preferably, the axes of the upper clamping roller and the lower clamping roller are both perpendicular to the axis of the turning frame.

[0026] Preferably, the steel turning machine also includes a second hydraulic cylinder, which is arranged in the turning frame, one end of the second hydraulic cylinder is connected to the turning frame, and the other end is connected to one of the upper clamping arm and the lower clamping arm, and the second hydraulic cylinder is used to drive the clamping roller device to rise and fall relative to the turning frame.

[0027] Preferably, the steel turning machine also includes a base, and the frame is arranged on the base.

[0028] Compared with the prior art, the present invention has achieved the following technical effects:

[0029] The steel turning machine disclosed in the present invention has a novel and reasonable structure. It adopts supporting wheels distributed on the outer periphery of the turning frame to install and support the turning frame, and utilizes the self-rotation characteristics of each supporting wheel to ensure that the turning frame can rotate in situ around its own axis between the supporting wheels. Compared with the existing large-bearing supported turning frame, this structural design not only simplifies the installation structure, but also uses small rollers for the supporting wheels, which greatly reduces the cost, and is easy to disassemble and assemble, and has low maintenance costs. In addition, the turning drive system adopts the form of a drive chain and a drive sprocket. Compared with installing a large gear ring outside the turning frame to drive the rotation, the installation structure is simplified, the cost is reduced, the drive reliability is stronger, and it is easy to maintain and repair.

[0030] In some technical solutions disclosed in the present invention, a hydraulic cylinder is used to directly lift the clamp roller device. Compared with the solution of using a spiral elevator to lift the entire frame, the structure is simpler, the cost is lower, and it is easier to maintain, while the work efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1It is a schematic diagram of the front view of the steel turning machine disclosed in the embodiment of the present invention;

[0033] Figure 2 It is a schematic diagram of the assembly of the flip drive system disclosed in the embodiment of the present invention;

[0034] Figure 3 A side view of a clamp roller device disclosed in an embodiment of the present invention;

[0035] Figure 4 It is a schematic diagram of assembling the turning frame disclosed in the embodiment of the present invention.

[0036] In the figure, the reference numerals are:

[0037] 100. Steel turning machine:

[0038] 1. Frame;

[0039] 2. Turning frame; 21. Step surface 1;

[0040] 3. Support wheel; 31. Step surface 2;

[0041] 4. Flip drive system; 41. Drive chain; 42. Drive sprocket; 43. Drive shaft; 44. Reducer; 45. Drive motor;

[0042] 5. Clamp roller device; 51. Upper clamp arm; 52. Upper clamp roller; 53. Lower clamp arm; 54. Lower clamp roller; 55. Hydraulic cylinder 1; 56. Lower clamp roller drive motor;

[0043] 6. Hydraulic cylinder 2;

[0044] 7. Base;

[0045] 8. Drag chain rack. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The purpose of the present invention is to provide a new type of steel turning machine, mainly to solve the problems of the above-mentioned existing steel turning machine, in which the turning frame is supported by two large bearings and the rotation of the turning frame is driven by a large gear ring, which not only has a complex structure, but also has high manufacturing costs and high maintenance costs for large bearings and large gears.

[0048] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0049] Example 1

[0050] like Figure 1 to Figure 4 As shown, this embodiment provides a steel turning machine 100, including a frame 1, a turning frame 2, a turning drive system 4 and a clamp roller device 5. A plurality of supporting wheels 3 are arranged on the inner side of the frame 1, and any supporting wheel 3 is rotatably connected to the frame 1. All supporting wheels 3 are spaced apart along the circumferential direction, and the inner circles of all supporting wheels 3 form a turning space; the turning frame 2 is a cylindrical frame structure, which is movably installed in the turning space, and the outer side wall of the turning frame 2 is in rolling contact with any supporting wheel 3, so as to suspend and support the turning frame 2 in the frame 1 through the supporting wheels 3; the turning drive system 4 includes a drive chain 41. A driving sprocket 42 and a driving source. The driving chain 41 is arranged on the inner wall or the outer wall of the turning frame 2, and the driving chain 41 is arranged in an arc shape along the circumferential direction of the turning frame 2. The driving sprocket 42 is rotatably installed in the frame 1 and meshes with the driving chain 41. The driving source is used to drive the driving sprocket 42 to rotate, so as to drive the turning frame 2 to rotate in situ around its own axis through the driving chain 41; the clamp roller device 5 is arranged on the turning frame 2, and the clamp roller device 5 is used to clamp or release the bar rolled piece to be rotated. The clamp roller device 5 can rotate synchronously with the turning frame 2 to realize the turning of the clamped bar rolled piece to be rotated. The above-mentioned steel turning machine 100 has a novel and reasonable structure. It adopts support wheels 3 distributed on the outer periphery of the turning frame 2 to install and support the turning frame 2, and utilizes the self-rotation characteristics of each support wheel 3 to ensure that the turning frame 2 can rotate in situ around its own axis between the support wheels 3. Compared with the existing large bearing support for installing the turning frame 2, this structural design not only simplifies the installation structure, but also the support wheel 3 adopts small rollers, which greatly reduces the cost, and is easy to disassemble and assemble, and has low maintenance costs; in addition, the turning drive system 4 adopts the form of a drive chain 41 and a drive sprocket 42. Compared with installing a large gear ring outside the turning frame to drive the rotation, the installation structure is simplified, the cost is reduced, the drive reliability is stronger, and it is easy to maintain and repair.

[0051] In some embodiments, the outer wall of the turning frame 2 is symmetrically provided with multiple groups of support wheels 3 along the circumference of the turning frame 2, and any group of support wheels 3 includes multiple support wheels 3 arranged at intervals along the axial direction of the turning frame 2, and the axis of any support wheel 3 is parallel to the axis of the turning frame 2. Specifically, the outer wall of the turning frame 2 can be symmetrically provided with more than three groups of support wheels 3 along the circumference of the turning frame 2, and any group of support wheels 3 includes more than two support wheels 3, and preferably the support wheels 3 of the same group are coaxially installed.

[0052] In some embodiments, Figure 1As shown, the outer wall of the turning frame 2 is symmetrically provided with four groups of supporting wheels 3 along the circumference of the turning frame 2, wherein each group of supporting wheels 3 includes two supporting wheels 3, and the two supporting wheels 3 are respectively provided at the axial ends of the turning frame 2. Specifically, as Figure 2 As shown, the outer side walls of the two axial ends of the turning frame 2 are provided with a step surface 21, the two step surfaces 21 are symmetrical in the axial direction of the turning frame 2, and the outer diameters of the two step surfaces 21 gradually decrease in the direction away from each other; correspondingly, the outer side wall of any supporting wheel 3 is provided with a step surface 21 adapted to the step surface 21, and the supporting wheel 3 is in rolling contact with the step surface 21 through the step surface 21. Since the two step surfaces 21 are symmetrical in the axial direction of the turning frame 2, the two supporting wheels 3 in each group of supporting wheels 3 are also arranged relatively to each other, and the outer diameters of the two step surfaces 21 gradually increase in the direction away from each other, so that the outer ends of the two step surfaces 21 are respectively adapted to the outer ends of the two step surfaces 21 through the outer ends of the two step surfaces 21, and then the axial movement of the turning frame 2 is limited through the concave-convex cooperation between the step surface 2 31 and the step surface 21, thereby ensuring the stability of the turning frame 2 when it rotates in situ.

[0053] In some embodiments, the driving source of the aforementioned flip driving system 4 includes a driving shaft 43, a reducer 44 and a driving motor 45. The driving shaft 43 is arranged outside the flip frame 2 and is arranged parallel to the axial direction of the flip frame 2. The two ends of the driving shaft 43 can be rotatably connected to the frame 1 through a bearing frame and a bearing; the driving sprocket 42 can be fixedly sleeved on the driving shaft 43 by a key connection; the reducer 44 is connected to the driving shaft 43, and the output end of the driving motor 45 is connected to the reducer 44, so as to drive the driving shaft 43 to rotate through the reducer 44, thereby driving the driving sprocket 42 to rotate, and driving the flip frame 2 to rotate through the driving sprocket 42. The driving chain 41 is arranged on the outer wall of the flip frame 2, which can be arranged along the outer wall of the flip frame 2 in a whole circle, or only set to a 180° arc, or a 270° arc, etc. The driving rotation range of the flip driving system 4 on the flip frame 2 is generally 0° to 180°.

[0054] In some embodiments, in order to improve the structural integration of the above-mentioned steel turning machine 100, it is preferred that a group of turning drive systems 4 is provided, and the driving shaft 43 is coaxially arranged with a group of supporting wheels 3, wherein the group of supporting wheels 3 is rotatably mounted on the driving shaft 43 through bearings, and when the driving shaft 43 rotates under the drive of the driving motor 45, the group of supporting wheels 3 is not driven to rotate by the driving shaft 43, but is driven to rotate under the rolling friction of the turning frame 2. Except for the above-mentioned group of supporting wheels 3, the remaining groups of supporting wheels 3 can be mounted on the frame 1 through a rotating shaft, and can also be mounted on the frame 1 through a roller frame.

[0055] In some embodiments, the clamp roller device 5 includes an upper clamp arm 51, an upper clamp roller 52, a lower clamp arm 53, a lower clamp roller 54 and a hydraulic cylinder 55, wherein the upper clamp arm 51 is disposed in the turning frame 2, and the first end of the upper clamp arm 51 is hinged to the turning frame 2; the upper clamp roller 52 is rotatably mounted on the second end of the upper clamp arm 51; the lower clamp arm 53 is disposed in the turning frame 2, the lower clamp arm 53 and the upper clamp arm 51 are respectively located on both sides of the axis of the turning frame 2, and the first end of the lower clamp arm 53 is hinged to the turning frame 2; the lower clamp roller 54 is rotatably mounted on the lower clamp arm 5 3, and the axis of the lower clamping roller 54 is parallel to the axis of the upper clamping roller 52; the top end of the hydraulic cylinder 55 is hinged to the upper clamping arm 51, and the bottom end is hinged to the lower clamping arm 53. Specifically, the top end of the piston rod of the hydraulic cylinder 55 can be hinged to the upper clamping arm 51, and the bottom end of the cylinder body of the hydraulic cylinder 55 can be hinged to the lower clamping arm 53. By driving the hydraulic cylinder 55 to extend and retract, the upper clamping roller 52 and the lower clamping roller 54 can be driven to move closer to or away from each other, so as to adjust the opening size between the upper clamping roller 52 and the lower clamping roller 54. Among them, the hydraulic cylinder 1 55 contracts and can drive the second end of the upper clamp roller 52 and the second end of the lower clamp roller 54 to approach each other, so as to clamp the bar workpiece to be rotated through the upper clamp roller 52 and the lower clamp roller 54. The bar workpiece to be rotated is generally a rod with a rectangular or elliptical cross-section; when the upper clamp roller 52 and the lower clamp roller 54 clamp the bar workpiece to be rotated, the drive motor 45 is started to drive the turning frame 2 to rotate in a specific direction and a specific angle, thereby completing the turning of the bar workpiece to be rotated; after the turning is completed, the hydraulic cylinder 1 55 extends and can drive the second end of the upper clamp roller 52 and the second end of the lower clamp roller 54 to move away from each other, so as to loosen the rotated bar workpiece.

[0056] In some embodiments, the axes of the upper clamp roller 52 and the lower clamp roller 54 are perpendicular to the axis of the turning frame 2. At least one of the upper clamp roller 52 and the lower clamp roller 54 can be equipped with a driving motor as needed, that is, the upper clamp roller 52 and the lower clamp roller 54 can be equipped with a driving motor respectively. In this case, the upper clamp roller 52 and the lower clamp roller 54 are both active rollers. In addition, only one of the upper clamp roller 52 and the lower clamp roller 54 can be equipped with a driving motor and serve as the active roller, while the other is not equipped with a driving motor and serves as a driven roller. Figure 1 As shown, the lower clamp roller 54 is provided with a lower clamp roller driving motor 56, which can drive the lower clamp roller 54 to rotate, so that the clamp roller device 5 can convey the clamped bar rolled piece. Generally, it is preferred to set a hydraulic cylinder 55 on one side of the upper clamp arm 51 and the lower clamp arm 53, which can simplify the structure and further reduce the cost.

[0057] In some embodiments, the steel turning machine 100 is further provided with a hydraulic cylinder 2 6, which is arranged in the turning frame 2, one end of the hydraulic cylinder 2 6 is connected to the turning frame 2, and the other end is connected to one of the upper clamp arm 51 and the lower clamp arm 53. The hydraulic cylinder 2 6 is used to drive the clamp roller device 5 to lift and lower relative to the turning frame 2, which can ensure the height difference between the clamped workpiece or billet of the clamp roller device 5 and the front and rear roller surfaces, and ensure that the clamped workpiece or billet of the clamp roller device 5 will not be blocked during the turning process. Compared with the prior art, this design configures four spiral elevators under the frame 1 and uses a hydraulic motor to drive the four spiral elevators. Not only is the structure complex and the cost high, but the spiral elevators are slow and inefficient, which eliminates the complex installation structure and manufacturing and maintenance costs of multiple spiral elevators, and the hydraulic cylinder-driven lifting performance is more stable and efficient.

[0058] In some embodiments, a hydraulic cylinder 26 is arranged below the clamping roller device 5, and the bottom of the cylinder of the hydraulic cylinder 26 is connected to the turning frame 2, and the top of the piston rod of the hydraulic cylinder 26 is connected to the lower clamping arm 53, so that the clamping roller device 5 can be raised and lowered relative to the turning frame 2 by extending and retracting the hydraulic cylinder 26.

[0059] In some embodiments, Figure 1 As shown, the steel turning machine 100 also includes a base 7, and the frame 1 is arranged on the base 7. At the same time, a drag chain frame 8 is also configured on one side of the frame 1. The drag chain frame 8 is a conventional configuration in the steel turning machine 100, and its structure and function are not repeated here.

[0060] In summary, the steel turning machine 100 proposed in this solution has the following advantages:

[0061] (1) Simple structure, low manufacturing cost and easy maintenance:

[0062] The sprocket chain is used as the structure to drive the turning frame, which is cheaper than the structure using a large gear pair, and has a simple structure and is easy to maintain;

[0063] The structure of using small supporting wheels to support the turning frame is cheaper than that of using large bearings, and has a simple structure and is easy to maintain;

[0064] The clamp roller device is directly lifted by a hydraulic cylinder, which is simpler in structure, lower in cost and easier to maintain than the solution of lifting the entire frame by a screw lift.

[0065] (II) High working efficiency and reliable operation:

[0066] The clamp roller device is directly lifted by a hydraulic cylinder, which has a faster lifting rate and higher working efficiency than a spiral lift.

[0067] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0068] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A steel turning machine, characterized in that: include: A frame, wherein a plurality of supporting wheels are arranged on the inner side of the frame, any of the supporting wheels is rotatably connected to the frame, all the supporting wheels are spaced apart along the circumferential direction, and the inner circles of all the supporting wheels form a turning space; A turning frame is movably installed in the turning space, and the outer side wall of the turning frame is in rolling contact with any one of the supporting wheels, so that the turning frame is suspended and supported in the frame through the supporting wheels; The turning drive system comprises a driving chain, a driving sprocket and a driving source, wherein the driving chain is arranged on the inner wall or the outer wall of the turning frame, and the driving chain is arranged in an arc shape along the circumferential direction of the turning frame, the driving sprocket is rotatably installed in the frame and meshes with the driving chain, and the driving source is used to drive the driving sprocket to rotate, so as to drive the turning frame to rotate in situ around its own axis through the driving chain; The clamp roller device is arranged on the turning frame, and is used for clamping or releasing the bar material to be rotated. The clamp roller device can rotate synchronously with the turning frame to realize the turning of the bar material to be rotated.

2. The steel turning machine according to claim 1, characterized in that: The outer side wall of the flip frame is symmetrically provided with a plurality of groups of support wheels along the circumference of the flip frame, any group of support wheels comprises a plurality of support wheels arranged at intervals along the axial direction of the flip frame, and the axis of any support wheel is parallel to the axis of the flip frame.

3. The steel turning machine according to claim 2, characterized in that: Any group of the supporting wheels includes two supporting wheels, and the two supporting wheels are respectively located at two axial ends of the turning frame.

4. The steel turning machine according to claim 3, characterized in that: The outer side walls at both axial ends of the flip frame are each provided with a step surface 1, the two step surfaces 1 are symmetrical in the axial direction of the flip frame, and the outer diameters of the two step surfaces 1 gradually decrease in a direction away from each other; The outer side wall of any one of the supporting wheels is provided with a step surface 2 matched with the step surface 1, and the step surface 2 can limit the axial movement of the turnover frame.

5. The steel turning machine according to any one of claims 2 to 4, characterized in that: The driving source comprises: A driving shaft is arranged outside the turning frame and parallel to the axial direction of the turning frame, and both ends of the driving shaft are rotatably connected to the frame; the driving sprocket is fixedly sleeved on the driving shaft; A reducer connected to the drive shaft; A driving motor is connected to the reducer to drive the driving shaft to rotate through the reducer.

6. The steel turning machine according to claim 5, characterized in that: The flip drive system is provided with a group, and the drive shaft is coaxially arranged with a group of the support wheels, wherein the support wheels are rotatably mounted on the drive shaft.

7. The steel turning machine according to any one of claims 1 to 4, characterized in that: The clamp roller device comprises: An upper clamping arm is arranged in the flip frame, and one end of the upper clamping arm is hinged to the flip frame; An upper clamp roller, rotatably mounted on the other end of the upper clamp arm; A lower clamp arm is arranged in the flip frame, the lower clamp arm and the upper clamp arm are respectively located on both sides of the axis of the flip frame, and one end of the lower clamp arm is hinged to the flip frame; A lower clamping roller is rotatably mounted on the other end of the lower clamping arm, and the axis of the lower clamping roller is parallel to the axis of the upper clamping roller; A hydraulic cylinder 1, whose top end is hinged to the upper clamp arm and whose bottom end is hinged to the lower clamp arm, is used to drive the upper clamp roller and the lower clamp roller to move closer to or away from each other, so as to clamp or release the bar to be rotated.

8. The steel turning machine according to claim 7, characterized in that: The axes of the upper clamp roller and the lower clamp roller are both perpendicular to the axis of the turnover frame.

9. The steel turning machine according to any one of claims 1 to 4, characterized in that: It also includes hydraulic cylinder 2, which is arranged in the flip frame. One end of the hydraulic cylinder is connected to the flip frame, and the other end is connected to one of the upper clamping arm and the lower clamping arm. The hydraulic cylinder 2 is used to drive the clamping roller device to rise and fall relative to the flip frame.

10. The steel turning machine according to any one of claims 1 to 4, characterized in that: It also includes a base, and the frame is arranged on the base.

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