A coiler drum with a hydraulic jaw structure having an axial jaw cylinder

Abstract

The utility model discloses a winder drum with a hydraulic jaw structure with an axial jaw cylinder, comprising a hollow sleeve, a transmission key and a gear being arranged on the hollow sleeve, the gear driving the hollow sleeve to rotate through the transmission key, and the inner hole of the hollow sleeve being provided with a copper sleeve 1 and a copper sleeve 2 for providing lubrication; through the optimized and improved design of the product of the utility model, the winder drum has a jaw structure that retains the advantages of the hydraulic jaw structure while avoiding the disadvantages of oil leakage from the jaw cylinder contaminating the strip steel, high cost, complex structure, and frequent replacement of O-rings; the drum fan-shaped plate and the jaw fan-shaped plate are convenient for on-site disassembly and assembly; the drum optimizes the spline axial transmission commonly used in pyramid shaft type drums into a guide key transmission, thereby achieving the beneficial effects of reducing processing difficulty and saving costs.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling equipment, in particular to a coiler drum with a hydraulic jaw structure having an axial jaw oil cylinder. Background Art

[0002] The coiler drum is the core equipment of the steel plant. Most of the coiler drums at home and abroad adopt the jaw clamping method for coiling, except for a small number of structures with belt coiling aids.

[0003] The traditional jaw structure is divided into mechanical jaw structure and hydraulic jaw structure, each of which has its own advantages and disadvantages: the advantages of the traditional hydraulic jaw structure are that the jaw opening is large, which can adapt to the curling operation of various thick steel coils, and there is no need to frequently replace the jaw strips, which reduces the labor intensity of workers, and the roundness of the reel is good during winding, which is convenient for unloading and reduces the possibility of scratches on the inner ring of the steel coil. The structure is simple, but the disadvantages are that the number of jaw cylinders is large, resulting in high prices, and the conventional jaw cylinders and jaw sector plates are sealed by O-rings, which need to be replaced frequently, and the jaw cylinders are prone to oil leakage, resulting in contamination of product strips;

[0004] The advantages of the traditional mechanical jaw structure are relatively lower cost and no contamination of the product strip. The disadvantage is that the jaw opening is relatively small. In order to cope with coiling operations with a large strip thickness span, the jaw strip needs to be replaced, which makes the operation cumbersome. Some mechanical jaw structures may cause scratches on the inner ring of the strip. The structure is complex and requires high machining capabilities. Utility Model Content

[0005] In view of the technical problems in the related technology of the traditional mechanical jaw structure and hydraulic jaw structure coiler drum jaw cylinder oil leakage polluting the strip steel, high cost, complex structure, and the need to frequently replace the O-ring, the utility model proposes a coiler drum with a hydraulic jaw structure with an axial jaw cylinder, which can overcome the above-mentioned shortcomings of the prior art.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0007] A coiler drum with a hydraulic jaw structure having an axial jaw cylinder;

[0008] The reel drum of the winder with a hydraulic jaw structure having an axial jaw cylinder comprises a hollow sleeve, on which a transmission key and a gear are provided. The gear drives the hollow sleeve to rotate via the transmission key, and the inner hole of the hollow sleeve is provided with a copper sleeve 1 and a copper sleeve 2 for providing lubrication.

[0009] Furthermore, a pyramidal shaft is provided in the inner hole of the hollow sleeve, and the pyramidal shaft is in contact with copper sleeve one and copper sleeve two. A guide key for axially fixing the hollow sleeve and the pyramidal shaft is passed through the hollow sleeve, and when the gear drives the hollow sleeve to rotate, the hollow sleeve drives the pyramidal shaft to rotate synchronously through the guide key.

[0010] Furthermore, a head support is provided on the left side of the pyramid shaft, and a four-sided inclined surface structure with a dovetail groove on one side and key grooves on the other three sides is provided on the pyramid shaft. A dovetail key and a T-key are respectively installed in the dovetail groove and the key groove, and a jaw fan-shaped plate and a fan-shaped plate are respectively radially limited by the dovetail key and the T-shaped key on the pyramid shaft. The jaw fan-shaped plate and the fan-shaped plate are axially limited by a hollow sleeve through a slider, and the slider is connected to the fan-shaped plate and the jaw fan-shaped plate by two screws.

[0011] Furthermore, through holes are provided on the fan-shaped plate and the jaw fan-shaped plate, and the through holes are used to tighten or loosen the screws two that fix the T-key, dovetail key and the pyramid axis, thereby realizing rapid disassembly and assembly of the fan-shaped plate and the jaw fan-shaped plate.

[0012] Furthermore, the jaw sector plate is equipped with a jaw assembly and a jaw cylinder, the jaw cylinder includes a jaw cylinder piston rod, a jaw cylinder piston and a jaw cylinder barrel, the jaw sector plate and the jaw cylinder are connected via a jaw cylinder barrel and screws, and the jaw sector plate is provided with a groove for installing the jaw pressure plate, the jaw moving plate and the jaw locking plate.

[0013] Furthermore, the jaw moving plate is connected to a jaw cylinder piston rod through a slider nut and a fastening screw, and the jaw cylinder drives the jaw moving plate to move axially when the jaw cylinder moves in an extension and contraction manner; the jaw locking plate and the jaw moving plate are in contact through an inclined surface, and both the jaw locking plate and the jaw sector plate are provided with keyways, and the jaw sector plate limits the axial movement of the jaw locking plate through an installation key; the axial movement of the jaw moving plate is converted into movement of the jaw locking plate through cooperation with the inclined surface of the jaw moving plate and the axial limitation of the installation key, and a jaw pressure plate is provided on the jaw sector plate through screw 2, and the jaw pressure plate is used to press the jaw moving plate and the jaw locking plate and axially limit the jaw moving plate and the jaw locking plate.

[0014] Furthermore, the angle between the movement direction of the jaw locking plate and the movement direction of the jaw moving plate is 90 degrees.

[0015] Furthermore, a flange is provided at the right end of the hollow sleeve, an expansion and contraction cylinder is provided on the flange, and the right end of the pyramidal shaft is a slender rod structure, which passes through the piston of the expansion and contraction cylinder and connects the piston of the expansion and contraction cylinder and the pyramidal shaft into a whole through nuts one and two, and the piston drives the pyramidal shaft to move axially.

[0016] Furthermore, the expansion and contraction oil cylinder comprises a piston, a cylinder barrel, a bracket and a hard pipe, the bracket of the expansion and contraction oil cylinder is installed on the cylinder barrel, the bracket is connected to a rotary joint, and the rotary joint is connected to the oil circuit of the expansion and contraction oil cylinder through a hard pipe.

[0017] Furthermore, the hollow sleeve and the flange are both provided with oil circuits connected to the oil circuit on the expansion and contraction cylinder, the jaw sector plate is provided with two circular holes for installing the jaw cylinder and the oil pipe, and the oil pipe is partially exposed, the oil circuit on the hollow sleeve is connected to the oil pipe through a hose assembly and finally enters the jaw cylinder.

[0018] The beneficial effects of the utility model are as follows: through the optimized and improved design of the product of the utility model, the jaw structure of the coiler drum retains the advantages of the hydraulic jaw structure, such as large opening, good coiling roundness and simple structure, while effectively avoiding the disadvantages of oil leakage from the jaw cylinder contaminating the strip, high cost, complex structure, and frequent replacement of O-rings; the disassembly and assembly of the drum fan-shaped plate and the jaw fan-shaped plate are optimized for easy on-site disassembly and assembly; the drum optimizes the spline axial transmission commonly used in pyramid shaft type drums into a guide key transmission, thereby achieving the beneficial effect of reducing processing difficulty and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of a reel of a winder having a hydraulic jaw structure with an axial jaw cylinder according to an embodiment of the utility model;

[0021] Figure 2 It is a first cross-sectional view of a reel of a winder having a hydraulic jaw structure with an axial jaw cylinder according to an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the jaw cylinder structure of a reel of a winder having a hydraulic jaw structure with an axial jaw cylinder according to an embodiment of the utility model;

[0023] Figure 4 It is a second cross-sectional view of a reel of a winder having a hydraulic jaw structure with an axial jaw cylinder according to an embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the installation of the jaw assembly on the jaw sector plate of a reel of a hydraulic jaw structure with an axial jaw cylinder according to an embodiment of the utility model, with the jaw pressure plate hidden;

[0025] Figure 6 It is a schematic diagram of an expansion and contraction cylinder of a reel of a winder having a hydraulic jaw structure with an axial jaw cylinder according to an embodiment of the utility model;

[0026] In the figure: 1. head support component; 2. pyramid shaft; 3. jaw sector plate; 4. jaw pressure plate; 5. screw one; 6. slider nut; 7. fastening screw; 8. oil pipe; 9. jaw cylinder; 10. screw two; 11. slider; 12. hollow sleeve; 13. guide key; 14. transmission key; 15. gear; 16. flange; 17. expansion and contraction cylinder; 18. nut one; 19. nut two; 20. swivel joint; 21. hose assembly; 22. jaw cylinder piston rod; 23. jaw cylinder piston; 24. jaw cylinder barrel; 25. jaw locking plate; 26. jaw moving plate; 27. dovetail key; 28. T-key; 29. ​​piston; 30. cylinder barrel; 31. bracket; 32. hard pipe; 33. copper sleeve one; 34. copper sleeve two; 35. sector plate; 36. installation key. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0028] It should be understood that in the description of the embodiments of the present utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0029] like Figure 1-6 As shown, a winder drum of a hydraulic jaw structure with an axial jaw cylinder according to an embodiment of the utility model includes a pyramid shaft 2, a fan-shaped plate 35, a jaw fan-shaped plate 3, a dovetail key 27, a T-key 28, a head support component 1, a guide key 13, a hollow sleeve 12, a transmission key 14, a gear 15, a copper sleeve 1 33, a copper sleeve 2 34, a flange 16, an expansion and contraction cylinder 17, a rotary joint 20, a jaw cylinder 9, a nut 18, a nut 2 19, an oil pipe 8, a hose assembly 21, a screw 10, a slider 11, a jaw assembly and other parts.

[0030] The jaw assembly includes a jaw pressure plate 4, a jaw moving plate 26, a jaw locking plate 25, a slider nut 6, a fastening screw 7, a mounting key 36 and other parts;

[0031] The jaw cylinder 9 includes a jaw cylinder piston rod 22, a jaw cylinder piston 23, a jaw cylinder barrel 24 and other parts;

[0032] The expansion and contraction cylinder 17 includes parts such as a piston 29 , a cylinder barrel 30 , a bracket 31 and a hard pipe 32 .

[0033] In a specific embodiment, according to the utility model, a winder reel with a hydraulic jaw structure with an axial jaw cylinder is provided with a transmission key 14 on its hollow sleeve 12, a gear 15 is installed on the hollow sleeve 12, the gear 15 drives the hollow sleeve 12 to rotate by means of the transmission key 14, and the inner hole of the hollow sleeve 12 is provided with a copper sleeve 1 33 and a copper sleeve 2 34.

[0034] In a specific embodiment, according to the winder reel of a hydraulic jaw structure with an axial jaw cylinder described in the utility model, the pyramidal shaft 2 is installed in the inner hole of the hollow sleeve 12, and is in contact with the copper sleeve 1 33 and the copper sleeve 2 34. The copper sleeve 1 33 and the copper sleeve 2 34 provide lubrication. The guide key 13 passes through the hollow sleeve 12 to axially fix the hollow sleeve 12 and the pyramidal shaft 3. When the gear 15 drives the hollow sleeve 12 to rotate, the hollow sleeve 12 drives the pyramidal shaft 2 to rotate together through the guide key 13. Compared with the spline of the traditional pyramidal shaft structure, the use of the guide key 13 can effectively reduce the processing difficulty and reduce the production cost.

[0035] In a specific embodiment, according to the winder reel of a hydraulic jaw structure with an axial jaw cylinder described in the utility model, a head support component 1 is installed on the left side of the pyramidal shaft 2, and there is a four-sided inclined surface structure on the pyramidal shaft 2, three of the four inclined surfaces have keyways, and one has a dovetail groove, a T-shaped key 28 is installed in the keyway and fastened by screws 10, a dovetail key 27 is installed in the dovetail groove and fastened by screws 10, the fan plate 35 is radially limited by the pyramidal shaft 2 through the T-shaped key 28, and is axially limited by the hollow sleeve 12 through the slider 11, the jaw fan plate 3 is radially limited by the pyramidal shaft 2 through the dovetail key 27, and is axially limited by the hollow sleeve 12 through the slider 11, and the slider 11 is connected to the fan plate 35 and the jaw fan plate 3 through screws 10.

[0036] In a specific embodiment, according to the winder reel of a hydraulic jaw structure with an axial jaw cylinder described in the utility model, the fan-shaped plate 35 and the jaw fan-shaped plate 3 are provided with through holes, and the screws 10 fixing the T-key 28, the dovetail key 27 and the pyramid shaft 2 can be directly tightened and loosened through the through holes, thereby realizing the quick disassembly and assembly of the fan-shaped plate 35 and the jaw fan-shaped plate 3.

[0037] In a specific embodiment, according to the hydraulic jaw structure of the coiler with an axial jaw cylinder described in the utility model, the jaw sector plate 3 is equipped with a jaw assembly and a jaw cylinder 9, and the jaw cylinder barrel 24 fixes the entire jaw cylinder 9 to the jaw sector plate 3 through screws 10. It can be seen from the position of the jaw cylinder 9 that even if the jaw cylinder 9 leaks oil, it will not contaminate the strip. The jaw sector plate 3 is grooved, and the jaw pressure plate 4, the jaw moving plate 26, the jaw locking plate 25 and other parts are installed in the groove opened by the jaw sector plate 3.

[0038] In a specific embodiment, according to the winder reel of a hydraulic jaw structure with an axial jaw cylinder described in the utility model, the jaw cylinder piston rod 22 and the jaw moving plate 26 are connected by a slider nut 6, the slider nut 6 and the jaw cylinder piston rod 22 are connected, and the connection is prevented from loosening by a tightening screw 7. The jaw cylinder 9 can drive the jaw moving plate 26 to move axially during the telescopic movement. The jaw locking plate 25 and the jaw moving plate 26 are in contact through an inclined surface. There is a keyway on the jaw locking plate 25, and there is also a keyway on the jaw sector plate 3. The axial movement of the jaw locking plate 25 is limited by installing the key 36. By cooperating with the inclined surface of the jaw moving plate 26 and axially limiting the installation key 36, the axial movement of the jaw moving plate 26 is converted into the movement of the jaw locking plate 25, which is 90° to the movement direction of the jaw moving plate 26. The jaw pressure plate 4 is installed on the jaw sector plate 3 by means of screws 10, pressing the jaw moving plate 26 and the jaw locking plate 25, and limiting them axially.

[0039] In a specific embodiment, according to the winder reel of a hydraulic jaw structure with an axial jaw cylinder described in the utility model, a flange 16 is installed at the right end of the hollow sleeve 12, and an expansion and contraction cylinder 17 is installed on the flange 16. The right end of the pyramidal shaft 2 is a slender rod structure, which passes through the piston 29 of the expansion and contraction cylinder 17. Through nuts 18 and nut 2 19, the piston 29 of the expansion and contraction cylinder 17 and the pyramidal shaft 2 are connected into a whole, that is, the piston 29 can drive the pyramidal shaft 2 to move axially.

[0040] In a specific embodiment, according to the winder reel of a hydraulic jaw structure with an axial jaw cylinder described in the utility model, the bracket 31 of the expansion and contraction cylinder 17 is installed on the cylinder barrel 30, the rotary joint 20 is installed on the bracket 31, and the oil circuit of the rotary joint 20 and the expansion and contraction cylinder 17 is connected through a hard pipe 32.

[0041] In a specific embodiment, according to the winder reel of a hydraulic jaw structure with an axial jaw cylinder described in the utility model, the hollow sleeve 12 has an oil circuit and the flange 16 has an oil circuit. The oil circuit on the hollow sleeve 12 is connected to the oil circuit on the expansion and contraction cylinder 17 through the flange 16. Two circular holes are opened on the jaw sector plate 3, so that the jaw cylinder 9 can be installed with the oil pipe 8, and the oil pipe 8 is partially exposed. The oil circuit on the hollow sleeve 12 is connected to the oil pipe 8 through the hose assembly 21, and finally enters the jaw cylinder 9.

[0042] In order to facilitate understanding of the above technical solution of the present invention, the above technical solution of the present invention is described in detail below through a specific working principle.

[0043] In specific use, such as Figure 1-6As shown, according to the winder reel of a hydraulic jaw structure with an axial jaw cylinder described in the utility model, after the oil circuit is connected to the rotary joint 20, it is connected to the expansion and contraction cylinder 17 through the steel pipe 32. There is an oil circuit inside the cylinder barrel 30 of the expansion and contraction cylinder 17, which can make the hydraulic oil entering the rotary joint 20 drive the piston 29 of the expansion and contraction cylinder 17 to move axially, thereby driving the axial movement of the pyramid shaft 2. It should be noted that the hollow sleeve 12 is axially stationary.

[0044] The utility model discloses a winder reel with a hydraulic jaw structure having an axial jaw cylinder, wherein the pyramid shaft 2 is in contact with the sector plate 35 and the jaw sector plate 3 through an inclined surface, and the sector plate 35, the jaw sector plate 3 and the hollow sleeve 12 are axially positioned through a slider 11, and finally the axial movement of the pyramid shaft 2 is converted into the radial movement of the sector plate 35 and the jaw sector plate 3, so as to realize the expansion and contraction of the reel.

[0045] The utility model discloses a reel of a hydraulic jaw structure with an axial jaw oil cylinder. The hollow sleeve 12 has an oil circuit and the flange 16 has an oil circuit. The oil circuit on the hollow sleeve 12 is connected to the oil circuit on the expansion and contraction oil cylinder 17 through the flange 16. Two round holes are opened on the jaw sector plate 3, so that the jaw oil cylinder 9 can be installed with the oil pipe 8, and the oil pipe 8 is partially exposed. The oil circuit on the hollow sleeve 12 is connected to the oil pipe 8 through the hose assembly 21, and finally the hydraulic oil enters the jaw oil cylinder 9, driving the jaw oil cylinder piston 23 to move axially, so as to realize the jaw. The expansion and contraction of the oil cylinder 9 drives the axial movement of the movable jaw plate 26, and the movable jaw plate 26 is in contact with the clamping jaw plate 25 through the inclined surface, and the clamping jaw plate 25 and the jaw sector plate 3 are axially limited by the mounting key 36, and finally the axial movement of the movable jaw plate 26 is converted into the clamping and loosening movement of the clamping jaw plate 25, thereby realizing the function of the jaws, and the jaw pressure plate 4 is installed on the jaw sector plate 3 by screws 10, pressing the jaw movable plate 26 and the jaw locking plate 25 to limit them axially.

[0046] To sum up, with the help of the above-mentioned technical scheme of the utility model, through the optimization and improvement design of the product of the utility model, the jaw structure of the coiler drum retains the advantages of large opening degree, good coiling roundness and simple structure of the hydraulic jaw structure, while effectively avoiding the disadvantages of oil leakage from the jaw cylinder to contaminate the strip, high cost, complex structure, and frequent replacement of O-rings; the disassembly and assembly of the drum fan plate and the jaw fan plate are optimized for easy on-site disassembly and assembly; the drum optimizes the spline axial transmission commonly used in pyramid shaft reels to a guide key transmission, thereby achieving the beneficial effect of reducing processing difficulty and saving costs.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coiler drum with a hydraulic jaw structure having an axial jaw cylinder, characterized in that: The hollow sleeve (12) comprises a transmission key (14) and a gear (15) provided on the hollow sleeve (12); the gear (15) drives the hollow sleeve (12) to rotate via the transmission key (14); and the inner hole of the hollow sleeve (12) is provided with a copper sleeve 1 (33) and a copper sleeve 2 (34) for providing lubrication.

2. The reel of a winder with a hydraulic jaw structure having an axial jaw cylinder according to claim 1, characterized in that: A pyramid shaft (2) is also provided in the inner hole of the hollow sleeve (12), the pyramid shaft (2) is in contact with the first copper sleeve (33) and the second copper sleeve (34), a guide key (13) is provided in the hollow sleeve (12) for axially fixing the hollow sleeve (12) and the pyramid shaft (2), and when the gear (15) drives the hollow sleeve (12) to rotate, the hollow sleeve (12) drives the pyramid shaft (2) to rotate synchronously via the guide key (13).

3. The reel of a winder with a hydraulic jaw structure having an axial jaw cylinder according to claim 2, characterized in that: A head support component (1) is provided on the left side of the pyramid shaft (2). A square inclined surface structure having a dovetail groove on one side and key grooves on the other three sides is provided on the pyramid shaft (2). A dovetail key (27) and a T-key (28) are installed in the dovetail groove and the key groove respectively. A jaw sector plate (3) and a sector plate (35) are provided on the pyramid shaft (2) and are radially limited by the dovetail key (27) and the T-key (28) respectively. The jaw sector plate (3) and the sector plate (35) are both axially limited by the hollow sleeve (12) through the slider (11). The slider (11) is connected to the sector plate (35) and the jaw sector plate (3) by screw two (10).

4. The reel of a winder with a hydraulic jaw structure having an axial jaw cylinder according to claim 3, characterized in that: The fan-shaped plate (35) and the jaw fan-shaped plate (3) are both provided with through holes, and the through holes are used to tighten or loosen the screws (10) fixing the T-key (28), the dovetail key (27) and the pyramid shaft (2), thereby realizing the rapid disassembly and assembly of the fan-shaped plate (35) and the jaw fan-shaped plate (3).

5. The reel of the winder with a hydraulic jaw structure having an axial jaw cylinder according to claim 3, characterized in that: The jaw sector plate (3) is provided with a jaw assembly and a jaw cylinder (9), wherein the jaw cylinder (9) comprises a jaw cylinder piston rod (22), a jaw cylinder piston (23) and a jaw cylinder barrel (24), the jaw sector plate (3) and the jaw cylinder (9) are connected via the jaw cylinder barrel (24) and screws (10), and the jaw sector plate (3) is provided with grooves for mounting a jaw pressure plate (4), a jaw moving plate (26) and a jaw locking plate (25).

6. The reel of a winder with a hydraulic jaw structure having an axial jaw cylinder according to claim 5, characterized in that: The jaw movable plate (26) is connected to a jaw cylinder piston rod (22) via a slider nut (6) and a fastening screw (7), and the jaw cylinder (9) drives the jaw movable plate (26) to move axially when the jaw cylinder (9) moves in an extension and contraction manner; the jaw locking plate (25) and the jaw movable plate (26) are in contact via an inclined surface, and the jaw locking plate (25) and the jaw sector plate (3) are both provided with a keyway, and the jaw sector plate (3) limits the jaw locking plate (25) by installing a key (36). 5) axial movement; the axial movement of the jaw moving plate (26) is converted into the movement of the jaw locking plate (25) by cooperating with the inclined surface of the jaw moving plate (26) and the axial limitation of the mounting key (36); a jaw pressing plate (4) is provided on the jaw sector plate (3) through screw 2 (10), and the jaw pressing plate (4) is used to press the jaw moving plate (26) and the jaw locking plate (25) and axially limit the jaw moving plate (26) and the jaw locking plate (25).

7. The reel of a winder with a hydraulic jaw structure having an axial jaw cylinder according to claim 5, characterized in that: The angle between the movement direction of the jaw locking plate (25) and the movement direction of the jaw moving plate (26) is 90 degrees.

8. The reel of a winder with a hydraulic jaw structure having an axial jaw cylinder according to claim 6, characterized in that: The right end of the hollow sleeve (12) is provided with a flange (16), and the flange (16) is provided with an expansion and contraction oil cylinder (17). The right end of the pyramidal shaft (2) is a slender rod structure, and the slender rod structure passes through the piston (29) of the expansion and contraction oil cylinder (17) and connects the piston (29) of the expansion and contraction oil cylinder (17) and the pyramidal shaft (2) into a whole through nuts 1 (18) and 2 (19). The piston (29) drives the pyramidal shaft (2) to move axially.

9. The reel of a winder with a hydraulic jaw structure having an axial jaw cylinder according to claim 8, characterized in that: The expansion and contraction oil cylinder (17) comprises a piston (29), a cylinder barrel (30), a bracket (31) and a hard pipe (32); the bracket (31) of the expansion and contraction oil cylinder (17) is mounted on the cylinder barrel (30); the bracket (31) is connected to a rotary joint (20); and the rotary joint (20) is connected to the oil circuit of the expansion and contraction oil cylinder (17) via a hard pipe (32).

10. The reel of a winder with a hydraulic jaw structure having an axial jaw cylinder according to claim 8, characterized in that: The hollow sleeve (12) and the flange (16) are both provided with oil circuits connected to the oil circuits on the expansion and contraction cylinder (17); the jaw sector plate (3) is provided with two circular holes for mounting the jaw cylinder (9) and the oil pipe (8); and the oil pipe (8) is partially exposed; the oil circuit on the hollow sleeve (12) is connected to the oil pipe (8) through a hose assembly (21) and finally enters the jaw cylinder (9).

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