Three-in-one multi-roller integrated special gearbox

Abstract

The utility model provides a three-in-one multi-roller integrated special gearbox. The three-in-one multi-roller integrated special gearbox comprises an input shaft, a first output shaft assembly, a gear shaft assembly and a second output shaft assembly, the first output shaft assembly is connected with the input pinch roll, the gear shaft assembly is connected with the roll straightening machine, and the second output shaft assembly is connected with the output pinch roll. The input shaft is in meshed connection with the gear shaft assembly; the leftmost end of the gear shaft assembly is in meshed connection with the first output shaft assembly, and the rightmost end of the gear shaft assembly is in meshed connection with the second output shaft assembly. The structure is compact, the occupied space of the three gear boxes is reduced, the universality of the input shaft is achieved, and the advantages of the input shaft can be fully exerted under the condition that the space of a production room is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of gearboxes, in particular to a special three-in-one multi-roller integrated gearbox. Background Art

[0002] In modern industrial production, the efficient operation of various mechanical equipment is crucial for improving production efficiency. Among them, as the core component of the transmission system, the gearbox is widely used in a variety of mechanical equipment to achieve power transmission and conversion. However, the design of traditional gearboxes is mostly single-functional, such as for material input, straightening, and output, etc., which are independent of each other, resulting in a large space occupation in actual applications, and increasing the complexity and maintenance cost of the equipment.

[0003] In the prior art, the input pinch roll, the multi-roller straightening machine, and the output pinch roll are three common independent devices in the production line, respectively responsible for the functions of material input, straightening, and stable output. Although these devices perform well in their respective fields, in a production environment with limited space, their independent installation not only occupies a large amount of space resources, but also brings many inconveniences in installation, debugging, and later maintenance. Summary of the Utility Model

[0004] Based on the above problems, the utility model provides a special three-in-one multi-roller integrated gearbox, aiming to solve the technical problems such as large space occupation in the combined equipment of multiple gearboxes in the prior art.

[0005] The utility model provides a special three-in-one multi-roller integrated gearbox, which includes an input shaft and a first output shaft assembly, a gear shaft assembly, and a second output shaft assembly arranged in sequence from left to right;

[0006] The first output shaft assembly is connected to the input pinch roll, the gear shaft assembly is connected to the roll straightening machine, and the second output shaft assembly is connected to the output pinch roll;

[0007] The input shaft is meshed and connected with the gear shaft assembly;

[0008] The leftmost end of the gear shaft assembly is meshed and connected with the first output shaft assembly, and the rightmost end of the gear shaft assembly is meshed and connected with the second output shaft assembly.

[0009] Furthermore, the gear shaft assembly includes a number of gear shafts arranged in two rows and staggered up and down. The leftmost gear shaft in the gear shaft assembly is meshed and connected with the first output shaft assembly, and the rightmost gear shaft in the gear shaft assembly is meshed and connected with the second output shaft assembly;

[0010] The gear shafts in the gear shaft assembly are divided into multiple gear shaft units from left to right;

[0011] Each gear shaft unit includes a first gear shaft and multiple second gear shafts;

[0012] In the same gear shaft unit, the first gear shaft is meshed and connected with the adjacent second gear shaft, and the second gear shaft not meshed and connected with the first gear shaft is meshed and connected with the adjacent second gear shaft;

[0013] The input shaft is connected with a first gear;

[0014] A second gear is connected to the first gear shaft at the relatively leftmost end, and a third gear is connected to each first gear shaft;

[0015] The first gear on the input shaft is meshed and connected with the second gear on the first gear shaft at the relatively leftmost end;

[0016] The third gears between two adjacent first gear shafts are meshed and connected.

[0017] Further, the gear shaft unit other than the rightmost one in the gear shaft assembly includes one first gear shaft and four second gear shafts, and the first gear shaft is in the middle of the four second gear shafts;

[0018] The gear shaft unit at the relatively rightmost end in the gear shaft assembly includes one first gear shaft and three second gear shafts. There are two second gear shafts on the left side of the first gear shaft and one second gear shaft on the right side of the first gear shaft.

[0019] Further, the first output shaft assembly includes a first output shaft and a second output shaft which are opposite to each other up and down;

[0020] The first output shaft is connected with the upper input pinch roller, and the second output shaft is connected with the lower input pinch roller;

[0021] The first output shaft is connected with a fourth gear, the second output shaft is connected with a fifth gear, and the fourth gear and the fifth gear are meshed and connected.

[0022] Further, the gear shaft at the leftmost end of the lower row in the gear shaft assembly is meshed and connected with the second output shaft.

[0023] Further, the gearbox further includes a first intermediate shaft assembly;

[0024] The gear shaft at the leftmost end of the lower row in the gear shaft assembly and the second output shaft are indirectly meshed and connected through the first intermediate shaft assembly.

[0025] Further, the second output shaft assembly includes a third output shaft and a fourth output shaft which are opposite to each other up and down;

[0026] The third output shaft is connected with the upper output pinch roller, and the fourth output shaft is connected with the lower output pinch roller;

[0027] The third output shaft is connected with a sixth gear, the fourth output shaft is connected with a seventh gear, and the sixth gear and the seventh gear are meshed and connected.

[0028] Further, the rightmost gear shaft in the lower row of the gear shaft assembly is meshed and connected with the fourth output shaft.

[0029] Further, the gearbox further includes a second intermediate shaft assembly;

[0030] The rightmost gear shaft in the lower row of the gear shaft assembly is indirectly meshed and connected with the fourth output shaft through the second intermediate shaft assembly.

[0031] The beneficial technical effects of the present utility model are as follows: by integrating the gearboxes used for the input pinch rolls, multi-roll straightening machine, and output pinch rolls into one gearbox, and transmitting the rotational power from the same input shaft to the input pinch rolls, multi-roll straightening machine, and output pinch rolls, the structure is compact, the occupied space of the three gearboxes is reduced, the universality of the input shaft is realized, and the advantages of the three-in-one multi-roll integrated special gearbox of the present utility model are fully utilized under the condition of limited space in the production workshop. Description of the Drawings

[0032] Figure 1 It is the internal top view of a three-in-one multi-roll integrated special gearbox of the present utility model;

[0033] Figure 2 It is the front view of a three-in-one multi-roll integrated special gearbox of the present utility model;

[0034] Figure 3 It is the external top view of a three-in-one multi-roll integrated special gearbox of the present utility model;

[0035] Figure 4 It is the external left view of a three-in-one multi-roll integrated special gearbox of the present utility model;

[0036] Among them,

[0037] 1 - input shaft;

[0038] 11 - first gear;

[0039] 2 (2-a, 2-b, 2-c, 2-d) - the first gear shaft in the gear shaft assembly; 21 - second gear; 23 - third gear;

[0040] 3 (3-a, 3-a, 3-b, 3-c, 3-d, 3-e, 3-f, 3-g, 3-h, 3-i, 3-j, 3-k, 3-l, 3-m, 3-n) - the second gear shaft in the gear shaft assembly;

[0041] 4 - first output shaft; 41 - fourth gear;

[0042] 5 - Second output shaft; 51 - Fifth gear shaft; 52 - Eighth gear;

[0043] 6 - First intermediate shaft assembly; 6 - a - First intermediate shaft; 6 - b - Second intermediate shaft; 6 - c - Third intermediate shaft; 61 - Ninth gear;

[0044] 7 - Third output shaft; 71 - Sixth gear;

[0045] 8 - Fourth output shaft; 81 - Seventh gear; 82 - Tenth gear;

[0046] 9 - Second intermediate shaft assembly; 9 - a - Third gear shaft; 9 - b - Fourth intermediate shaft; 9 - c - Fifth intermediate shaft; 91 - Eleventh gear. Detailed implementation mode

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0048] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0049] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not limited to the present invention.

[0050] See Figures 1-4 , the present invention provides a three - in - one multi - roll integrated special gearbox, including an input shaft (1) and a first output shaft assembly, a gear shaft assembly, and a second output shaft assembly arranged in sequence from left to right;

[0051] The first output shaft assembly is connected to the input pinch roll, the gear shaft assembly is connected to the roller straightening machine, and the second output shaft assembly is connected to the output pinch roll;

[0052] The input shaft (1) is meshed and connected to the gear shaft assembly;

[0053] The leftmost end of the gear shaft assembly is meshed and connected to the first output shaft assembly, and the rightmost end of the gear shaft assembly is meshed and connected to the second output shaft assembly.

[0054] In the present utility model, the gearboxes respectively used for the input pinch rolls, the multi-roll straightening machine, and the output pinch rolls are integrated into the same gearbox in a three-in-one manner, and the rotational power is input from the same input shaft and transmitted to the input pinch rolls, the multi-roll straightening machine, and the output pinch rolls. The structure is compact, the occupied space of the three gearboxes is reduced, and the versatility of the input shaft is realized. When the space in the production workshop is limited, the use of the three-in-one multi-roll integrated special gearbox of the present utility model gives full play to its advantages.

[0055] Further, the gear shaft assembly includes a number of gear shafts arranged in two rows and staggered up and down. The leftmost gear shaft in the gear shaft assembly is meshed and connected with the first output shaft assembly, and the rightmost gear shaft in the gear shaft assembly is meshed and connected with the second output shaft assembly;

[0056] The gear shafts in the gear shaft assembly are divided into a plurality of gear shaft units from left to right;

[0057] Each gear shaft unit includes a first gear shaft (2) and a plurality of second gear shafts (3);

[0058] In the same gear shaft unit, the first gear shaft (2) is meshed and connected with the adjacent second gear shaft (3), and the second gear shaft (3) not meshed with the first gear shaft (2) is meshed and connected with the adjacent second gear shaft (3);

[0059] The input shaft (1) is connected with a first gear (11);

[0060] A second gear (21) is connected to the relatively leftmost first gear shaft (2), and a third gear (22) is connected to each first gear shaft (2);

[0061] The first gear (11) on the input shaft (1) is meshed and connected with the second gear (21) on the relatively leftmost first gear shaft (2);

[0062] The third gears (22) between two adjacent first gear shafts (2) are meshed and connected.

[0063] Each gear shaft of the gear shaft assembly is connected with a straightening roll, thereby forming the driving part of the roll straightening machine.

[0064] Further, in the gear shaft unit that is not the rightmost in the gear shaft assembly, it includes a first gear shaft (2) and four second gear shafts (3), and the first gear shaft (2) is in the middle position of the four second gear shafts (3);

[0065] In the gear shaft unit that is relatively the rightmost in the gear shaft assembly, it includes a first gear shaft (2) and three second gear shafts (3). There are two second gear shafts (3) on the left side of the first gear shaft (2) and one second gear shaft (3) on the right side of the first gear shaft (2).

[0066] Specifically, in the present utility model, it includes four gear shaft units. The first three gear shaft units include five gear shafts. Among them, the first gear shaft is in the middle, and there are two second gear shafts on each side. The fourth gear shaft unit includes four gear shafts, with two on the left side and one on the right side of the first gear shaft.

[0067] As Figure 2 shown, in the first gear shaft unit, there is a first first gear shaft (2-a), as well as a first second gear shaft (3-a), a second second gear shaft (3-b), a third second gear shaft (3-c), and a fourth second gear shaft (3-d). The first first gear shaft (2-a) has a second gear (21) and a third gear (22) connected by keys on the shaft. The first gear (11) key-connected to the input shaft (1) on the shaft of the second gear (21) can be indirectly meshed and connected. In this way, when the input shaft rotates, the first first gear shaft (2-a) is driven to rotate due to the gear meshing relationship. Since the left and right sides of the first gear shaft (2-a) are directly meshed and connected to the second second gear shaft (3-b) and the third second gear shaft (3-c), the rotation is transmitted to the second second gear shaft (3-b) and the third second gear shaft (3-c). The second second gear shaft (3-b) is directly meshed and connected to the adjacent first second gear shaft (3-a) on the left, and the third second gear shaft (3-c) is directly meshed and connected to the adjacent fourth second gear shaft (3-d) on the right. Therefore, the rotation is transmitted to the first second gear shaft (3-a) and the fourth second gear shaft (3-d). All the gear shafts of the first gear unit rotate, driving the corresponding straightening rollers to rotate. The second second gear shaft (3-b) and the third second gear shaft (3-c) are in the upper row, and the first first gear shaft (2-a), the first second gear shaft (3-a), and the fourth second gear shaft (3-d) are in the lower row. The first first gear shaft (2-a) in the lower row meshes with the two upper row second gear shafts, and the two upper row gear shafts mesh with the adjacent lower row second gear shafts. Therefore, the gear shafts in the lower row are in the first rotation direction, and the gear shafts in the upper row are in the second rotation direction. The first rotation direction and the second rotation direction are opposite.

[0068] In the second gear shaft unit, there is a second first gear shaft (2-b), and a fifth second gear shaft (3-e), a sixth second gear shaft (3-f), a seventh second gear shaft (3-g), and an eighth second gear shaft (3-h). The second first gear shaft (2-b) has a third gear (22) connected by a key on the shaft. The third gear (22) on the second first gear shaft (2-b) and the third gear (22) connected by a key on the first first gear shaft (2-a) can be indirectly meshed and connected, and the rotation is transmitted to the second first gear shaft (2-b). Due to the gear meshing relationship, the second first gear shaft (2-b) is driven to rotate. Since the second first gear shaft (2-b) meshes directly with the sixth second gear shaft (3-f) and the seventh second gear shaft (3-g) on the left and right, the rotation is transmitted to the sixth second gear shaft (3-f) and the seventh second gear shaft (3-g). The sixth second gear shaft (3-f) meshes directly with the adjacent fifth second gear shaft (3-e) on the left, and the seventh second gear shaft (3-g) meshes directly with the adjacent eighth second gear shaft (3-h) on the right. Therefore, the rotation is transmitted to the fifth second gear shaft (3-e) and the eighth second gear shaft (3-h). All the gear shafts of the second gear unit rotate, driving the corresponding straightening rollers to rotate. The fifth second gear shaft (3-e), the second first gear shaft (2-b), and the eighth second gear shaft (3-h) are in the upper row, and the sixth second gear shaft (3-f) and the seventh second gear shaft (3-g) are in the lower row. The second first gear shaft (2-b) meshes with the first first gear shaft (2-a). Therefore, the second first gear shaft (2-b) in the upper row rotates in the second rotation direction, the two lower row gear shafts meshing with the second first gear shaft (2-b) rotate in the first rotation direction, and the two upper row gear shafts adjacent to the two lower row gear shafts meshing with each other rotate in the second rotation direction. Therefore, the upper row is still in the second rotation direction, and the lower row is in the first rotation direction. In the third gear shaft unit, there is a third first gear shaft (2-c), and a ninth second gear shaft (3-i), a tenth second gear shaft (3-j), an eleventh second gear shaft (3-k), and a twelfth second gear shaft (3-l). The third first gear shaft (2-c) has a third gear (22) connected by a key on the shaft. The third gear (22) on the third first gear shaft (2-c) and the third gear (22) connected by a key on the second first gear shaft (2-b) can be indirectly meshed and connected, and the rotation is transmitted to the third first gear shaft (2-c). Due to the gear meshing relationship, the third first gear shaft (2-c) is driven to rotate.Since the third first gear shaft (2-c) meshes directly with the tenth second gear shaft (3-j) and the eleventh second gear shaft (3-k) on the left and right, the rotation is transmitted to the tenth second gear shaft (3-j) and the eleventh second gear shaft (3-k). The tenth second gear shaft (3-j) meshes directly with the adjacent ninth second gear shaft (3-i) on the left, and the eleventh second gear shaft (3-k) meshes directly with the adjacent twelfth second gear shaft (3-l) on the right. Therefore, the rotation is further transmitted to the ninth second gear shaft (3-i) and the twelfth second gear shaft (3-l). All the gear shafts of the third gear unit rotate, driving the corresponding straightening rollers to rotate. The third first gear shaft (2-c), the ninth second gear shaft (3-i), and the twelfth second gear shaft (3-l) are in the lower row, while the tenth second gear shaft (3-j) and the eleventh second gear shaft (3-k) are in the upper row. The third first gear shaft (2-c) in the lower row meshes with the second first gear shaft (2-b) in the upper row. Therefore, the third first gear shaft (2-c) in the lower row rotates in the first rotation direction, and the two upper row gear shafts meshing with the third first gear shaft (2-c) rotate in the second rotation direction. The adjacent lower row gear shafts meshing with the upper row gear shafts rotate in the first rotation direction. Therefore, the upper row still rotates in the second rotation direction, and the lower row rotates in the first rotation direction.

[0069] In the fourth gear shaft unit, there is a fourth first gear shaft (2-d), a thirteenth second gear shaft (3-m), a fourteenth second gear shaft (3-n), and a fifteenth second gear shaft (3-o). The fourth first gear shaft (2-d) has a third gear (22) connected by a key on the shaft. The third gear (22) on the fourth first gear shaft (2-d) and the third gear (22) connected by a key on the third first gear shaft (2-c) can be indirectly meshed and connected, and the rotation is transmitted to the fourth first gear shaft (2-d). Because of the gear meshing relationship, the fourth first gear shaft (2-d) is driven to rotate. Since the fourth first gear shaft (2-d) is directly meshed and connected to the fourteenth second gear shaft (3-n) and the fifteenth second gear shaft (3-o) on the left and right, the rotation is transmitted to the fourteenth second gear shaft (3-n) and the fifteenth second gear shaft (3-o). The fourteenth second gear shaft (3-n) is directly meshed and connected to the adjacent thirteenth second gear shaft (3-m) on the left, so the rotation is transmitted to the thirteenth second gear shaft (3-m). All the gear shafts of the fourth gear unit rotate, driving the corresponding straightening rollers to rotate. The fourth first gear shaft (2-d) and the thirteenth second gear shaft (3-m) are in the upper row, and the fourteenth second gear shaft (3-n) and the fifteenth second gear shaft (3-o) are in the lower row. The fourth first gear shaft (2-d) in the upper row rotates in the second rotation direction, the fourteenth second gear shaft (3-n) and the fifteenth second gear shaft (3-o) in the lower row rotate in the first rotation direction, and the thirteenth second gear shaft (3-m) in the upper row rotates in the second rotation direction. Therefore, the upper row is still in the second rotation direction, and the lower row is in the first rotation direction.

[0070] The main function of the roller straightening machine is to straighten the bent parts of steel.

[0071] Furthermore, the first output shaft assembly includes a first output shaft (4) and a second output shaft (5) that are opposite to each other up and down;

[0072] The first output shaft (4) is connected to the upper input pinch roll, and the second output shaft (5) is connected to the lower input pinch roll;

[0073] The first output shaft (4) is connected with a fourth gear (the first output shaft (4) is connected with a fourth gear (41)), and the second output shaft (5) is connected with a fifth gear (51). The fourth gear (41) and the fifth gear (51) are meshed and connected.

[0074] The first output shaft assembly drives the upper and lower input pinch rolls to rotate to feed the material in. The main function of the input pinch roll is to apply a certain clamping force to the steel during the head biting stage and apply a bending deformation effect to it.

[0075] Due to the meshing relationship, the gear shaft assembly transfers the rotation to the second output shaft (5), and the second output shaft (5) further transfers it to the first output shaft (4). Further, the leftmost gear shaft in the lower row of the gear shaft assembly is meshed and connected to the second output shaft (5).

[0076] The leftmost gear shaft in the lower row of the gear shaft assembly is the first second gear shaft (3-a).

[0077] Further, the gearbox further includes a first intermediate shaft assembly (6);

[0078] The leftmost gear shaft in the lower row of the gear shaft assembly and the second output shaft (5) are indirectly meshed and connected through the first intermediate shaft assembly (6).

[0079] The first intermediate shaft assembly (6) includes a first intermediate shaft (6-a), a second intermediate shaft (6-b), and a third intermediate shaft (6-c) from right to left. A ninth gear (61) is key-connected to each of the first intermediate shaft (6-a), the second intermediate shaft (6-b), and the third intermediate shaft (6-c). The ninth gear (61) of the first intermediate shaft (6-a) is directly meshed and connected to the first second gear shaft (3-a) on the right and the ninth gear (61) of the second intermediate shaft (6-b) on the left respectively; the ninth gear (61) of the second intermediate shaft (6-b) is directly meshed and connected to the ninth gear (61) of the third intermediate shaft (6-c). An eighth gear (52) is also key-connected to the second output shaft (5), and the eighth gear (52) is directly meshed and connected to the ninth gear (61) of the third intermediate shaft (6-c), so that the gear shaft assembly transfers the rotation of the input shaft to the first output shaft assembly. Another function of the first intermediate shaft assembly (6) is to control the transmission ratio between the gear shaft assembly and the first output shaft assembly through design.

[0080] If the first second gear shaft (3-a) in the lower row rotates in the first rotation direction, then the first intermediate shaft (6-a) rotates in the second rotation direction, the second intermediate shaft (6-b) rotates in the first rotation direction, the third intermediate shaft (6-c) rotates in the second rotation direction, then the second output shaft (5) below rotates in the first rotation direction, and the first output shaft (4) above rotates in the second rotation direction. Ensure that the output shaft below and the output shaft above rotate in opposite directions, which is convenient for feeding materials into the straightening machine.

[0081] Further, the second output shaft assembly includes a third output shaft (7) and a fourth output shaft (8) that are opposite to each other vertically;

[0082] The third output shaft (7) is connected to the upper output pinch roll, and the fourth output shaft (8) is connected to the lower output pinch roll;

[0083] The third output shaft (7) is connected to a sixth gear (71), the fourth output shaft (8) is connected to a seventh gear (81), and the sixth gear (71) and the seventh gear (81) are meshed and connected.

[0084] The main function of the output pinch roller is to apply a certain clamping force to the steel and complete the pushing function. Due to the meshing relationship, the gear shaft assembly transmits the rotation to the fourth output shaft (8), and the fourth output shaft (8) transmits the rotation to the third output shaft (7).

[0085] Furthermore, the rightmost gear shaft in the lower row of the gear shaft assembly is meshedly connected with the fourth output shaft (8).

[0086] The gear shaft on the far right of the lower row of the gear shaft assembly is the fifteenth second gear shaft (3-o).

[0087] Furthermore, the gearbox further comprises a second intermediate shaft assembly (9);

[0088] The rightmost gear shaft in the lower row of the gear shaft assembly and the fourth output shaft (8) are indirectly meshed and connected via the second intermediate shaft assembly (9).

[0089] The second intermediate shaft assembly (9) includes, from left to right, a third gear shaft (9-a), a fourth intermediate shaft (9-b), and a fifth intermediate shaft (9-c). Each of the fourth intermediate shaft (9-b) and the fifth intermediate shaft (9-c) is keyed to an eleventh gear (91). The third gear shaft (9-a) is directly meshed with the fifteenth second gear shaft (3-o) on the left and the eleventh gear (91) on the fourth intermediate shaft (9-b) on the right; the eleventh gear (91) on the fourth intermediate shaft (9-b) is directly meshed with the eleventh gear (91) on the fifth intermediate shaft (9-c). The fourth output shaft (8) is also keyed to a tenth gear (82). The tenth gear (82) is directly meshed with the eleventh gear (91) on the fifth intermediate shaft (9-c), so that the gear shaft assembly transmits the rotation of the input shaft to the second output shaft assembly. The second intermediate shaft assembly (9) also has a function of controlling the transmission ratio between the gear shaft assembly and the second output shaft assembly through design.

[0090] The fifteenth second gear shaft (3-o) in the lower row rotates in the first direction, the third gear shaft (9-a) rotates in the second direction, the fourth intermediate shaft (9-b) rotates in the first direction, and the fifth intermediate shaft (9-c) rotates in the second direction. The fourth output shaft (8) located below rotates in the first direction, and the third output shaft (7) located above rotates in the second direction. Ensure that the output shafts at the bottom and at the top rotate in opposite directions to facilitate material delivery.

[0091] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model accordingly. For those skilled in the art, it should be realized that all the solutions obtained by equivalent substitution and obvious changes made by using the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-in-one multi-roll integrated special gearbox, characterized in that: It includes an input shaft and a first output shaft assembly, a gear shaft assembly, and a second output shaft assembly arranged in sequence from left to right; The first output shaft assembly is connected to an input pinch roll, the gear shaft assembly is connected to a roll straightening machine, and the second output shaft assembly is connected to an output pinch roll; The input shaft and the gear shaft assembly are meshed and connected; The leftmost end of the gear shaft assembly is meshed and connected to the first output shaft assembly, and the rightmost end of the gear shaft assembly is meshed and connected to the second output shaft assembly.

2. The three-in-one multi-roll integrated special gearbox according to claim 1, characterized in that: The gear shaft assembly includes a number of gear shafts arranged in two rows and staggered up and down. The leftmost gear shaft in the gear shaft assembly is meshed and connected to the first output shaft assembly, and the rightmost gear shaft in the gear shaft assembly is meshed and connected to the second output shaft assembly; The gear shafts in the gear shaft assembly are divided into multiple gear shaft units from left to right; Each gear shaft unit includes a first gear shaft and multiple second gear shafts; In the same gear shaft unit, the first gear shaft is meshed and connected to the adjacent second gear shaft, and the second gear shaft not meshed with the first gear shaft is meshed and connected to the adjacent second gear shaft; The input shaft is connected with a first gear; A second gear is connected to the relatively leftmost first gear shaft, and a third gear is connected to each first gear shaft; The first gear on the input shaft is meshed and connected to the second gear on the relatively leftmost first gear shaft; The third gears between two adjacent first gear shafts are meshed and connected.

3. The three-in-one multi-roll integrated special gearbox according to claim 2, characterized in that: In the gear shaft unit that is not the rightmost in the gear shaft assembly, it includes one first gear shaft and four second gear shafts, and the first gear shaft is located in the middle of the four second gear shafts; In the relatively rightmost gear shaft unit in the gear shaft assembly, it includes one first gear shaft and three second gear shafts. There are two second gear shafts on the left side of the first gear shaft and one second gear shaft on the right side of the first gear shaft.

4. The three-in-one multi-roll integrated special gearbox according to claim 2, characterized in that: The first output shaft assembly includes the first output shaft and the second output shaft that are opposite up and down; The first output shaft is connected to the upper input pinch roll, and the second output shaft is connected to the lower input pinch roll; The first output shaft is connected with a fourth gear, the second output shaft is connected with a fifth gear, and the fourth gear and the fifth gear are meshed and connected.

5. The three-in-one multi-roller integrated special gearbox according to claim 4, characterized in that The leftmost gear shaft in the lower row of the gear shaft assembly is meshed and connected to the second output shaft.

6. The three-in-one multi-roll integrated special gearbox according to claim 5, characterized in that, The gearbox further includes a first intermediate shaft assembly; The leftmost gear shaft in the lower row of the gear shaft assembly and the second output shaft are indirectly meshed and connected through the first intermediate shaft assembly.

7. The three-in-one multi-roll integrated special gearbox according to claim 2, characterized in that: The second output shaft assembly includes an upper and a lower third output shaft and a fourth output shaft which are opposite to each other; The third output shaft is connected to the upper output pinch roll, and the fourth output shaft is connected to the lower output pinch roll; The third output shaft is connected with a sixth gear, the fourth output shaft is connected with a seventh gear, and the sixth gear and the seventh gear are meshed and connected.

8. The three-in-one multi-roller integrated special gearbox according to claim 7, characterized in that, The gear shaft at the rightmost end of the lower row in the gear shaft assembly is meshed and connected with the fourth output shaft.

9. The three-in-one multi-roll integrated special gearbox according to claim 8, characterized in that, The gearbox further includes a second intermediate shaft assembly; An indirect meshing connection is carried out between the gear shaft at the rightmost end of the lower row in the gear shaft assembly and the fourth output shaft through the second intermediate shaft assembly.

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