A hydraulic drive system for a roller train of a single-belt flattening machine

Abstract

The utility model relates to a kind of single flattener roll system hydraulic drive system, including rack, and the upper intermediate roll, upper edge roll and lower roll are installed on rack, and the upper intermediate roll is driven by upper intermediate roll hydraulic drive system, each upper edge roll is driven by upper edge roll hydraulic drive system respectively, and each lower roll is driven by lower roll hydraulic drive system respectively, and upper intermediate roll hydraulic drive system includes the upper intermediate roll hydraulic motor speed reducer connected with upper intermediate roll, and upper edge roll hydraulic drive system includes the upper edge roll hydraulic motor speed reducer connected with upper edge roll, and lower roll hydraulic drive system includes the lower roll hydraulic motor speed reducer connected with lower roll.The utility model has the beneficial effects that: driving torque is provided to work roll by hydraulic motor speed reducer, corresponding model hydraulic motor speed reducer can be selected according to actual stress condition and driving torque demand of each work roll, equipment manufacturing cost is reduced, flexible drive is provided, impact of unexpected situation such as clamping plate can be borne, with the advantage of small floor area.

Description

Technical Field

[0001] This utility model relates to a roller drive system for a leveling machine, and more particularly to a hydraulic drive system for a single-adjustment roller system of a leveling machine. Background Technology

[0002] In a monotonic leveling machine, the lower roller position is fixed, while the height of each upper working roller can be individually adjusted. Traditional monotonic leveling machines use a mechanical drive system, consisting of a motor, coupling, reducer, gearbox, and drive shaft connected sequentially. The drive shaft then connects to the roller system, driving its rotation. This mechanical drive structure is complex, occupies a large area, and is prone to damage when unexpected situations such as plate jamming occur during the leveling process, exhibiting poor impact resistance. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a hydraulic drive system for the roller system of a monotonic leveling machine.

[0004] This utility model is achieved through the following technical solution:

[0005] A hydraulic drive system for a monotonic leveling machine includes a frame on which an upper intermediate roller, an upper side roller, and a lower roller are mounted. The system is characterized in that: the upper intermediate roller is driven by an upper intermediate roller hydraulic drive system; each upper side roller is driven by an upper side roller hydraulic drive system; and each lower roller is driven by a lower roller hydraulic drive system. The upper intermediate roller hydraulic drive system includes an upper intermediate roller hydraulic motor reducer connected to the upper intermediate roller; the upper side roller hydraulic drive system includes an upper side roller hydraulic motor reducer connected to the upper side roller; and the lower roller hydraulic drive system includes a lower roller hydraulic motor reducer connected to the lower roller.

[0006] The hydraulic motor reducer of the upper intermediate roller is connected to the bottom of the upper intermediate roller torque arm. The upper intermediate roller hinge shaft is installed at the top of the upper intermediate roller torque arm. The upper intermediate roller hinge shaft is hinged to one end of the upper intermediate roller swing rod. The other end of the upper intermediate roller swing rod is hinged to the upper intermediate roller fixed shaft. The upper intermediate roller fixed shaft is fixedly installed on the frame.

[0007] The upper roller hydraulic motor reducer is connected to the upper roller torque arm. The upper roller torque arm is provided with a guide groove. Guide rail plates are provided on both sides of the guide groove. The guide rail plates are installed on both sides of the guide slider. The guide slider is fixed on the frame.

[0008] The lower roller hydraulic motor reducer is connected to the upper end of the lower roller torque arm. The lower roller hinge shaft is installed at the bottom of the lower roller torque arm. The lower roller hinge shaft is hinged to one end of the lower roller swing rod. The other end of the lower roller swing rod is hinged to the lower roller fixed shaft. The lower roller fixed shaft is fixedly installed on the frame.

[0009] The upper intermediate roller is connected to the upper intermediate roller hydraulic motor reducer via an upper intermediate roller drive shaft head. The upper intermediate roller drive shaft head is mounted on the end of the upper intermediate roller via several upper intermediate roller cylindrical pins and upper intermediate roller screws. An upper intermediate roller shaft head retaining plate is mounted on the end face of the upper intermediate roller drive shaft head. The upper intermediate roller shaft head retaining plate is embedded in the upper intermediate roller hydraulic motor reducer output shaft positioning slot. The upper intermediate roller positioning boss machined at the end of the upper intermediate roller drive shaft head cooperates with the upper intermediate roller end stop provided at the end of the upper intermediate roller. An upper intermediate roller drive shaft head positioning stop is provided on the upper intermediate roller drive shaft head. The upper intermediate roller drive shaft head positioning stop cooperates with the upper intermediate roller hydraulic motor reducer positioning cylindrical platform provided on the upper intermediate roller hydraulic motor reducer. An upper intermediate roller hydraulic motor reducer shaft end positioning boss is provided on the upper intermediate roller hydraulic motor reducer shaft end positioning boss, which cooperates with the upper intermediate roller internal stop provided on the upper intermediate roller.

[0010] The upper roller is connected to the upper roller hydraulic motor reducer via an upper roller drive shaft head. The upper roller drive shaft head is mounted on the end of the upper roller via several upper roller cylindrical pins and upper roller screws. An upper roller shaft head retaining plate is mounted on the end face of the upper roller drive shaft head. The upper roller shaft head retaining plate is embedded in the upper roller hydraulic motor reducer output shaft positioning slot. The upper roller positioning boss machined at the end of the upper roller drive shaft head cooperates with the upper roller end stop opened at the end of the upper roller. An upper roller drive shaft head positioning stop is opened on the upper roller drive shaft head. The upper roller drive shaft head positioning stop cooperates with the upper roller hydraulic motor reducer positioning cylindrical platform on the upper roller hydraulic motor reducer. An upper roller hydraulic motor reducer shaft end positioning boss is provided on the upper roller hydraulic motor reducer shaft end positioning boss, which cooperates with the upper roller internal stop opened on the upper roller.

[0011] The lower roller is connected to the lower roller hydraulic motor reducer via a lower roller drive shaft head. The lower roller drive shaft head is installed at the end of the lower roller via several lower roller cylindrical pins and lower roller screws. A lower roller shaft head retaining plate is installed on the end face of the lower roller drive shaft head. The lower roller shaft head retaining plate is embedded in the positioning groove of the lower roller hydraulic motor reducer output shaft. The lower roller positioning boss machined at the end of the lower roller drive shaft head cooperates with the lower roller end stop opened at the end of the lower roller. A lower roller drive shaft head positioning stop is opened on the lower roller drive shaft head. The lower roller drive shaft head positioning stop cooperates with the lower roller hydraulic motor reducer positioning cylindrical platform provided on the lower roller hydraulic motor reducer. A lower roller hydraulic motor reducer shaft end positioning boss is provided on the lower roller hydraulic motor reducer shaft end positioning boss, which cooperates with the lower roller internal stop opened on the lower roller.

[0012] The upper intermediate roller torque arm is provided with an upper intermediate roller torque arm stop, which cooperates with the positioning boss of the upper intermediate roller hydraulic motor reducer housing installed on the upper intermediate roller hydraulic motor reducer. The inner side of the upper intermediate roller torque arm is provided with an upper intermediate roller shaft retaining ring sleeved on the upper intermediate roller hinge shaft. The upper intermediate roller hinge shaft and the upper intermediate roller swing rod are hinged through the upper intermediate roller hinge shaft self-aligning bearing, the upper intermediate roller hinge shaft pressure cover and the upper intermediate roller hinge shaft baffle. The upper intermediate roller fixed shaft and the upper intermediate roller swing rod are hinged through the upper intermediate roller fixed shaft self-aligning bearing, the upper intermediate roller fixed shaft pressure cover and the upper intermediate roller fixed shaft baffle.

[0013] The lower roller torque arm is provided with a lower roller torque arm stop, which cooperates with the positioning boss of the lower roller hydraulic motor reducer housing installed on the lower roller hydraulic motor reducer. The inner side of the lower roller torque arm is provided with a lower roller shaft retaining ring sleeved on the lower roller hinge shaft. The lower roller hinge shaft and the lower roller swing rod are hinged through the lower roller hinge shaft self-aligning bearing, the lower roller hinge shaft pressure cover and the lower roller hinge shaft baffle. The lower roller fixed shaft and the lower roller swing rod are hinged through the lower roller fixed shaft self-aligning bearing, the lower roller fixed shaft pressure cover and the lower roller fixed shaft baffle.

[0014] The beneficial effects of this invention are as follows: Each working roller is equipped with an independent hydraulic drive structure, utilizing a hydraulic motor reducer to provide driving torque; the appropriate hydraulic motor reducer model can be selected based on the actual force and driving torque requirements of each working roller, reducing equipment manufacturing costs. For the positional structure and movement mode of the upper intermediate roller, upper side roller, and lower roller of the monotonic leveling machine, dedicated torque arm structures are respectively set to meet the height adjustment requirements of the upper intermediate roller and side roller, and the installation accuracy requirements of the lower roller; simultaneously, it can eliminate mechanical interference between the motor and torque arm caused by the deflection deformation of the working roller during the straightening process. Compared to mechanical drive systems, it features flexible drive, can withstand impacts from unexpected situations such as plate jamming, and has the advantage of a small footprint. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Appendix Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Appendix Figure 2 This is a side view of the structure of this utility model;

[0018] Appendix Figure 3 This is a schematic diagram of the upper intermediate roller hydraulic drive system of this utility model. Figure 1 ;

[0019] Appendix Figure 4 This is a schematic diagram of the upper intermediate roller hydraulic drive system of this utility model. Figure 2 ;

[0020] Appendix Figure 5 This is a schematic diagram of the installation structure of the upper intermediate roller swing rod of this utility model;

[0021] Appendix Figure 6 This is a schematic diagram of the main structure of the upper roller hydraulic drive system of this utility model;

[0022] Appendix Figure 7 This is a side view of the hydraulic drive system for the upper roller of this utility model.

[0023] Appendix Figure 8 This is a schematic diagram of the main structure of the lower roller hydraulic drive system of this utility model;

[0024] Appendix Figure 9 This is a side view of the hydraulic drive system for the lower roller of this utility model.

[0025] Appendix Figure 10 This is a schematic diagram of the installation structure of the lower roller swing rod of this utility model;

[0026] In the diagram, 1 is the frame, 2 is the upper intermediate roller, 3 is the upper side roller, 4 is the lower roller, 5 is the hydraulic drive system for the upper intermediate roller, 6 is the hydraulic drive system for the upper side roller, 7 is the hydraulic drive system for the lower roller, 8 is the hydraulic motor reducer for the upper intermediate roller, 9 is the hydraulic motor reducer for the upper side roller, 10 is the hydraulic motor reducer for the lower roller, 11 is the torque arm for the upper intermediate roller, 12 is the hinge shaft for the upper intermediate roller, 13 is the swing arm for the upper intermediate roller, 14 is the fixed shaft for the upper intermediate roller, 15 is the torque arm for the upper side roller, 16 is the guide groove, 17 is the guide plate, 18 is the guide slider, 19 is the torque arm for the lower roller, 20 is the hinge shaft for the lower roller, 21 is the swing arm for the lower roller, 22 is the fixed shaft for the lower roller, 23 is the drive shaft head for the upper intermediate roller, 24 is the upper roller, 25 is the lower roller, 26 is the upper roller, 27 is the guide rail plate, 18 is the guide slider, 19 is the torque arm for the lower roller, 20 is the hinge shaft for the lower roller, 21 is the swing arm for the lower roller, 22 is the fixed shaft for the lower roller, 23 is the drive shaft head for the upper intermediate roller, 24 is the upper roller, 25 is the lower roller, 26 is the lower roller, 27 is the upper roller, 28 is the lower roller, 29 is the lower roller, 20 is the lower roller, 21 is the swing arm for the lower roller, 22 is the fixed shaft for the lower roller, 23 is the drive shaft head for the upper intermediate roller, 24 is the upper roller, 25 is the lower roller, 20 is the lower roller, 21 is the lower roller, 22 is the lower roller, 23 is the drive shaft head for the Intermediate roller cylindrical pin, 25 upper intermediate roller screw, 26 upper intermediate roller shaft head retaining plate, 27 upper intermediate roller hydraulic motor reducer output shaft positioning slot, 28 upper intermediate roller positioning boss, 29 upper intermediate roller end stop, 30 upper intermediate roller drive shaft head positioning stop, 31 upper intermediate roller hydraulic motor reducer positioning cylindrical platform, 32 upper intermediate roller hydraulic motor reducer shaft end positioning boss, 33 upper intermediate roller internal stop, 34 upper side roller drive shaft head, 35 upper side roller cylindrical pin, 36 upper side roller screw, 37 upper side roller shaft head retaining plate, 38 upper side roller hydraulic motor reducer output shaft positioning slot, 39 upper side roller positioning boss, 40 upper side roller... End stop, 41. Upper roller drive shaft head positioning stop, 42. Upper roller hydraulic motor reducer positioning cylindrical platform, 43. Upper roller hydraulic motor reducer shaft end positioning boss, 44. Upper roller internal stop, 45. Lower roller drive shaft head, 46. Lower roller cylindrical pin, 47. Lower roller screw, 48. Lower roller shaft head retaining plate, 49. Lower roller hydraulic motor reducer output shaft positioning slot, 50. Lower roller positioning boss, 51. Lower roller end stop, 52. Lower roller drive shaft head positioning stop, 53. Lower roller hydraulic motor reducer positioning cylindrical platform, 54. Lower roller hydraulic motor reducer shaft end positioning boss, 55. Lower roller internal stop, 56. Upper intermediate roller torque arm stop. 57. Positioning boss of the upper intermediate roller hydraulic motor reducer housing; 58. Retaining ring for the upper intermediate roller shaft; 59. Self-aligning bearing of the upper intermediate roller hinge shaft; 60. Cover of the upper intermediate roller hinge shaft; 61. Baffle of the upper intermediate roller hinge shaft; 62. Self-aligning bearing of the upper intermediate roller fixed shaft; 63. Cover of the upper intermediate roller fixed shaft; 64. Baffle of the upper intermediate roller fixed shaft; 65. Torque arm stop of the lower roller; 66. Positioning boss of the lower roller hydraulic motor reducer housing; 67. Retaining ring for the lower roller shaft; 68. Self-aligning bearing of the lower roller hinge shaft; 69. Cover of the lower roller hinge shaft; 70. Baffle of the lower roller hinge shaft; 71. Self-aligning bearing of the lower roller fixed shaft; 72. Cover of the lower roller fixed shaft; 73. Baffle of the lower roller fixed shaft. Detailed Implementation

[0027] The attached figure shows a specific embodiment of this utility model. This embodiment includes a frame 1, on which are mounted upper intermediate rollers 2, upper side rollers 3, and lower rollers 4 as working rollers. Each working roller has an independent power system, allowing selection of a corresponding model (driving torque) hydraulic motor reducer based on the actual force and driving torque requirements of each working roller. The driving torque of the first working rollers at the inlet and outlet (i.e., the two on either side of the lower roller 4) is 33% of the driving torque of the second working rollers at the inlet and outlet (i.e., the two upper side rollers 3). The driving torque of the first working rollers at the inlet and outlet (i.e., the two on either side of the lower roller 4) is 25% of the driving torque of the remaining intermediate working rollers (i.e., the two upper intermediate rollers 2 and the two lower rollers 4). The size of the hydraulic motor reducer is selected according to the corresponding driving torque.

[0028] For the position structure and operation mode of the upper intermediate roller 2, upper side roller 3, and lower roller 4 of the monotonic leveling machine, hydraulic drive system 5 for the upper intermediate roller, hydraulic drive system 6 for the upper side roller, and hydraulic drive system 7 for the lower roller are respectively set.

[0029] The upper intermediate roller hydraulic drive system 5, the upper side roller hydraulic drive system 6, and the lower roller hydraulic drive system 7 have similar structural principles. The upper intermediate roller hydraulic drive system 5 will be used as an example for explanation. The upper intermediate roller hydraulic drive system 5 includes an upper intermediate roller drive shaft head 23, an upper intermediate roller shaft head clamping plate 26, an upper intermediate roller hydraulic motor reducer 8, an upper intermediate roller torque arm 11, an upper intermediate roller hinge shaft 12, an upper intermediate roller hinge shaft cover 60 and an upper intermediate roller fixed shaft cover 63, an upper intermediate roller hinge shaft baffle 61 and an upper intermediate roller fixed shaft baffle 64, an upper intermediate roller hinge shaft self-aligning bearing 59 and an upper intermediate roller fixed shaft self-aligning bearing 62, an upper intermediate roller swing rod 13, an upper intermediate roller fixed shaft 14, an upper intermediate roller shaft retaining ring 58, an upper intermediate roller cylindrical pin 24, and an upper intermediate roller screw 25.

[0030] One end of the upper intermediate roller drive shaft head 23 is machined with an upper intermediate roller positioning boss 28, which mates with the upper intermediate roller end stop 29 to achieve center positioning of the upper intermediate roller drive shaft head 23 relative to the upper intermediate roller 2. The upper intermediate roller drive shaft head 23 is machined with several pin holes and several screw holes. The upper intermediate roller drive shaft head 23 is mounted on one end of the upper intermediate roller 2 via upper intermediate roller cylindrical pins 24 and upper intermediate roller screws 25. The upper intermediate roller cylindrical pins 24 bear the torque required for the upper intermediate roller drive shaft head 23 to drive the upper intermediate roller 2 to rotate, and the upper intermediate roller screws 25 press the upper intermediate roller drive shaft head 23 tightly against the end of the upper intermediate roller 2. The upper intermediate roller drive shaft head 23 has an internal spline, and the other end, without the positioning boss, is machined with an upper intermediate roller drive shaft head positioning stop 30 for positioning the output spline shaft of the hydraulic motor reducer. The upper intermediate roller shaft head clamping plate 26 is fixed to the end face of the upper intermediate roller drive shaft head 23 with screws to prevent the upper intermediate roller cylindrical pin 24 from falling off; at the same time, the upper intermediate roller shaft head clamping plate 26 is embedded in the positioning groove 27 of the output shaft of the upper intermediate roller hydraulic motor reducer to position the upper intermediate roller hydraulic motor reducer 8 and limit the axial displacement of the upper intermediate roller hydraulic motor reducer 8. The upper intermediate roller hydraulic motor reducer 8 is a splined shaft output type. The splined shaft has an upper intermediate roller hydraulic motor reducer shaft end positioning boss 32 and an upper intermediate roller hydraulic motor reducer positioning cylindrical platform 31. The upper intermediate roller hydraulic motor reducer positioning cylindrical platform 31 is machined with an upper intermediate roller hydraulic motor reducer output shaft positioning slot 27. The upper intermediate roller hydraulic motor reducer shaft end positioning boss 32 cooperates with the upper intermediate roller internal stop 33, and the upper intermediate roller hydraulic motor reducer positioning cylindrical platform 31 cooperates with the upper intermediate roller drive shaft head positioning stop 30. The upper intermediate roller hydraulic motor reducer output shaft positioning slot 27 is used to install the upper intermediate roller shaft head clamping plate 26 to realize the positioning of the upper intermediate roller hydraulic motor reducer 8.

[0031] One end of the upper intermediate roller torque arm 11 is machined with an upper intermediate roller torque arm stop 56 for mounting the upper intermediate roller hydraulic motor reducer housing positioning boss 57, and several threaded holes for circumferential positioning of the upper intermediate roller hydraulic motor reducer 8. The other end of the upper intermediate roller torque arm 11 is mounted with an upper intermediate roller hinge shaft 12, which is located above the upper intermediate roller 2. The upper intermediate roller hinge shaft 12, the upper intermediate roller hinge shaft cover 60, the upper intermediate roller hinge shaft baffle 61, and the upper intermediate roller hinge shaft self-aligning bearing 59 hinge one end of the upper intermediate roller swing rod 13 and one end of the upper intermediate roller torque arm 11 together. The application of the upper intermediate roller hinge shaft self-aligning bearing 59 allows the upper intermediate roller swing rod 13 to swing relative to the upper intermediate roller torque arm 11. The other end of the upper intermediate roller swing rod 13 is connected to the upper intermediate roller fixed shaft cover 63, the upper intermediate roller fixed shaft baffle 64, the upper intermediate roller fixed shaft self-aligning bearing 62, and the upper intermediate roller fixed shaft 14. The upper intermediate roller fixed shaft 14 is fixedly installed on the frame 1. The application of the upper intermediate roller fixed shaft self-aligning bearing 62 allows the upper intermediate roller swing rod 13 to swing relative to the upper intermediate roller fixed shaft 14. In this way, when the upper intermediate roller 2 is deflected, the position of the upper intermediate roller hydraulic motor reducer 8 swings with the deflection of the upper intermediate roller 2, and the upper intermediate roller torque arm 11 and the upper intermediate roller swing rod 13 can swing accordingly, avoiding mechanical interference. The upper intermediate roller 2 deflection adjustment range is small, and the swing amplitudes of the upper intermediate roller hydraulic motor reducer 8, the upper intermediate roller torque arm 11, and the upper intermediate roller swing rod 13 are all small, which can meet the usage requirements.

[0032] The structure of the upper intermediate roller hydraulic drive system 5 is adapted to the adjustable height of the upper intermediate roller 2. The upper intermediate roller 2 shaft, the upper intermediate roller hinge shaft 12, and the upper intermediate roller fixed shaft 14 form a triangular stable structure. The upper intermediate roller torque arm 11 and the upper intermediate roller swing rod 13 are used to make the upper intermediate roller fixed shaft 14 bear the reverse torque of the upper intermediate roller hydraulic motor reducer 8 driving the upper intermediate roller 2 to rotate.

[0033] The upper roller hydraulic drive system 6 includes an upper roller drive shaft head 34, an upper roller shaft head clamping plate 37, an upper roller hydraulic motor reducer 9, an upper roller torque arm 15, a guide slider 18, and a guide rail plate 17. The upper roller drive shaft head 34, the upper roller shaft head clamping plate 37, and the upper roller hydraulic motor reducer 9 have the same structural principle as the upper intermediate roller hydraulic drive system 5. The upper roller torque arm 15 has a vertically oriented guide groove 16 machined on it. The guide slider 18 is vertically fixed to the frame 1, and guide rail plates 17 are installed on both sides of the guide slider 18. The guide rail plates 17 are made of wear-resistant copper alloy material. When the height of the upper roller 3 is adjusted, the guide groove 16 on the upper roller torque arm 15 moves up and down along the vertical direction of the guide slider 18. The guide slider 18 bears the reverse torque of the upper roller 3 driven by the upper roller hydraulic motor reducer 9 through the upper roller torque arm 15. By swinging the upper roller torque arm 15, the mechanical interference caused by the deflection deformation of the upper roller 3 can be eliminated.

[0034] The lower roller 4 is fixed in position. The design of the lower roller torque arm 19 and the lower roller swing rod 21 of the lower roller hydraulic drive system 7 can eliminate the influence of the lower roller 4 assembly error (center height position change) on the lower roller hydraulic drive system 7.

[0035] The driving torque of the first working rollers at the inlet and outlet (i.e., the two on both sides of the lower roller 4) is 33% of the driving torque of the second working rollers at the inlet and outlet (i.e., the two upper rollers 3). The driving torque of the first working rollers at the inlet and outlet (i.e., the two on both sides of the lower roller 4) is 25% of the driving torque of the remaining intermediate working rollers (i.e., the two upper intermediate rollers 2 and the two lower rollers 4). In this way, the driving torque of the first working rollers at the inlet and outlet is at least one specification smaller than the driving torque of the second working rollers at the inlet and outlet, and two specifications smaller than the driving torque of the remaining intermediate working rollers, thereby reducing the equipment manufacturing cost.

Claims

1. A hydraulic drive system for a single-adjustment leveling machine roller system, comprising a frame (1), on which an upper intermediate roller (2), an upper side roller (3), and a lower roller (4) are mounted, characterized in that: The upper intermediate roller (2) is driven by the upper intermediate roller hydraulic drive system (5), each upper side roller (3) is driven by the upper side roller hydraulic drive system (6), and each lower roller (4) is driven by the lower roller hydraulic drive system (7). The upper intermediate roller hydraulic drive system (5) includes an upper intermediate roller hydraulic motor reducer (8) connected to the upper intermediate roller (2), the upper side roller hydraulic drive system (6) includes an upper side roller hydraulic motor reducer (9) connected to the upper side roller (3), and the lower roller hydraulic drive system (7) includes a lower roller hydraulic motor reducer (10) connected to the lower roller (4).

2. The hydraulic drive system for the roller system of the monotonic leveling machine according to claim 1, characterized in that: The upper intermediate roller hydraulic motor reducer (8) is connected to the bottom of the upper intermediate roller torque arm (11). The upper intermediate roller hinge shaft (12) is installed on the top of the upper intermediate roller torque arm (11). The upper intermediate roller hinge shaft (12) is hinged to one end of the upper intermediate roller swing rod (13). The other end of the upper intermediate roller swing rod (13) is hinged to the upper intermediate roller fixed shaft (14). The upper intermediate roller fixed shaft (14) is fixedly installed on the frame (1).

3. The hydraulic drive system for the roller system of the monotonic leveling machine according to claim 1, characterized in that: The upper roller hydraulic motor reducer (9) is connected to the upper roller torque arm (15). The upper roller torque arm (15) is provided with a guide groove (16). The guide groove (16) is provided with guide rail plates (17) on both sides. The guide rail plates (17) are installed on both sides of the guide slider (18). The guide slider (18) is fixed on the frame (1).

4. The hydraulic drive system for the roller system of the monotonic leveling machine according to claim 1, characterized in that: The lower roller hydraulic motor reducer (10) is connected to the upper end of the lower roller torque arm (19). The lower roller hinge shaft (20) is installed at the bottom of the lower roller torque arm (19). The lower roller hinge shaft (20) is hinged to one end of the lower roller swing rod (21). The other end of the lower roller swing rod (21) is hinged to the lower roller fixed shaft (22). The lower roller fixed shaft (22) is fixedly installed on the frame (1).

5. The hydraulic drive system for the roller system of the monotonic leveling machine according to claim 1, characterized in that: The upper intermediate roller (2) is connected to the upper intermediate roller hydraulic motor reducer (8) via an upper intermediate roller drive shaft head (23). The upper intermediate roller drive shaft head (23) is installed at the end of the upper intermediate roller (2) via several upper intermediate roller cylindrical pins (24) and upper intermediate roller screws (25). An upper intermediate roller shaft head clamping plate (26) is installed on the end face of the upper intermediate roller drive shaft head (23). The upper intermediate roller shaft head clamping plate (26) is embedded in the upper intermediate roller hydraulic motor reducer output shaft positioning groove (27) of the upper intermediate roller hydraulic motor reducer (8). The upper intermediate roller positioning boss (28) machined at the end of the upper intermediate roller drive shaft head (23) is connected to the upper intermediate roller drive shaft head (23) via a groove (27) on the upper intermediate roller hydraulic motor reducer output shaft. The upper intermediate roller (2) is fitted with the upper intermediate roller end stop (29) at the end of the upper intermediate roller (2). The upper intermediate roller drive shaft head (23) is provided with an upper intermediate roller drive shaft head positioning stop (30). The upper intermediate roller drive shaft head positioning stop (30) is fitted with the upper intermediate roller hydraulic motor reducer positioning cylindrical platform (31) provided on the upper intermediate roller hydraulic motor reducer (8). The upper intermediate roller hydraulic motor reducer (8) is provided with an upper intermediate roller hydraulic motor reducer shaft end positioning boss (32). The upper intermediate roller hydraulic motor reducer shaft end positioning boss (32) is fitted with the upper intermediate roller inner stop (33) provided on the upper intermediate roller (2).

6. The hydraulic drive system for the roller system of the monotonic leveling machine according to claim 1, characterized in that: The upper roller (3) is connected to the upper roller hydraulic motor reducer (9) via an upper roller drive shaft head (34). The upper roller drive shaft head (34) is mounted on the end of the upper roller (3) via several upper roller cylindrical pins (35) and upper roller screws (36). An upper roller shaft head clamping plate (37) is mounted on the end face of the upper roller drive shaft head (34). The upper roller shaft head clamping plate (37) is embedded in the upper roller hydraulic motor reducer output shaft positioning groove (38) of the upper roller hydraulic motor reducer (9). The upper roller positioning boss (39) machined at the end of the upper roller drive shaft head (34) is connected to the upper roller drive shaft head (34) via a groove. The upper side roller end stop (40) of the side roller (3) is matched with the upper side roller drive shaft head (34) and the upper side roller drive shaft head positioning stop (41) is provided. The upper side roller drive shaft head positioning stop (41) is matched with the upper side roller hydraulic motor reducer positioning cylindrical platform (42) provided on the upper side roller hydraulic motor reducer (9). The upper side roller hydraulic motor reducer (9) is provided with the upper side roller hydraulic motor reducer shaft end positioning boss (43). The upper side roller hydraulic motor reducer shaft end positioning boss (43) is matched with the upper side roller inner stop (44) provided on the upper side roller (3).

7. The hydraulic drive system for the roller system of the monotonic leveling machine according to claim 1, characterized in that: The lower roller (4) is connected to the lower roller hydraulic motor reducer (10) via a lower roller drive shaft head (45). The lower roller drive shaft head (45) is installed at the end of the lower roller (4) via several lower roller cylindrical pins (46) and lower roller screws (47). A lower roller shaft head clamping plate (48) is installed on the end face of the lower roller drive shaft head (45). The lower roller shaft head clamping plate (48) is embedded in the lower roller hydraulic motor reducer output shaft positioning groove (49) of the lower roller hydraulic motor reducer (10). The lower roller positioning boss (50) machined at the end of the lower roller drive shaft head (45) is connected to the lower roller drive shaft head (45) via a lower roller drive shaft head (45). (4) The end stop (51) of the lower roller is matched with the end stop of the lower roller. The lower roller drive shaft head (45) is provided with a lower roller drive shaft head positioning stop (52). The lower roller drive shaft head positioning stop (52) is matched with the lower roller hydraulic motor reducer positioning cylindrical platform (53) provided on the lower roller hydraulic motor reducer (10). The lower roller hydraulic motor reducer (10) is provided with a lower roller hydraulic motor reducer shaft end positioning boss (54). The lower roller hydraulic motor reducer shaft end positioning boss (54) is matched with the lower roller internal stop (55) provided on the lower roller (4).

8. The hydraulic drive system for the roller system of the monotonic leveling machine according to claim 2, characterized in that: The upper intermediate roller torque arm (11) is provided with an upper intermediate roller torque arm stop (56), which cooperates with the upper intermediate roller hydraulic motor reducer housing positioning boss (57) installed on the upper intermediate roller hydraulic motor reducer (8). The upper intermediate roller torque arm (11) is provided with an upper intermediate roller shaft retaining ring (58) sleeved on the upper intermediate roller hinge shaft (12). The upper intermediate roller hinge shaft (12) and the upper intermediate roller swing rod (13) are hinged through the upper intermediate roller hinge shaft self-aligning bearing (59), the upper intermediate roller hinge shaft pressure cover (60) and the upper intermediate roller hinge shaft baffle (61). The upper intermediate roller fixed shaft (14) and the upper intermediate roller swing rod (13) are hinged through the upper intermediate roller fixed shaft self-aligning bearing (62), the upper intermediate roller fixed shaft pressure cover (63) and the upper intermediate roller fixed shaft baffle (64).

9. The hydraulic drive system for the roller system of the monotonic leveling machine according to claim 4, characterized in that: The lower roller torque arm (19) is provided with a lower roller torque arm stop (65), which cooperates with the lower roller hydraulic motor reducer housing positioning boss (66) installed on the lower roller hydraulic motor reducer (10). The lower roller torque arm (19) is provided with a lower roller shaft retaining ring (67) sleeved on the lower roller hinge shaft (20). The lower roller hinge shaft (20) and the lower roller swing rod (21) are hinged through the lower roller hinge shaft self-aligning bearing (68), the lower roller hinge shaft pressure cover (69) and the lower roller hinge shaft baffle (70). The lower roller fixed shaft (22) and the lower roller swing rod (21) are hinged through the lower roller fixed shaft self-aligning bearing (71), the lower roller fixed shaft pressure cover (72) and the lower roller fixed shaft baffle (73).

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