A rudder shaft rocker arm mechanism automatic running-in system

Abstract

The application relates to a rudder shaft rocking arm mechanism automatic running-in system in the technical field of rudder shaft running-in, which comprises a control system, a U-shaped seat, a rudder shaft rotating actuating unit, a running-in unit and a rubbing torque adjusting unit. The rudder shaft rotating actuating unit is arranged at the top of the U-shaped seat and is used for mounting and driving the rudder shaft to rotate repeatedly. The running-in unit is arranged at the corresponding rudder shaft rubbing-in area of the U-shaped seat so as to rub the repeatedly rotating rudder shaft. The rubbing torque adjusting unit has two parts and is used for adjusting the pressure of the A end and the B end of the running-in unit on the rudder shaft body. The rudder shaft rotating actuating unit is provided with a torque sensor for detecting the rudder shaft rocking arm running-in torque. The application only needs manual operation in the dismounting link, the participation time is only about 3 minutes, and the whole running-in time is only about 30 minutes. Compared with the prior art, the personnel workload is reduced, the running-in efficiency is improved, and the function of one person watching over multiple machines can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rudder shaft running-in, in particular to a rudder shaft rocker arm mechanism automatic running-in system. BACKGROUND

[0002] In the rudder shaft rocker arm mechanism assembly process, the friction plate assembly link is one of the bottlenecks affecting batch production. The longest time-consuming is the running-in of the rudder shaft rocker arm. The running-in torque process requires that the average value of the running-in torque range is 3.8-5Nm, and the difference between the positive and negative running-in torque values is not greater than 0.5Nm. If the running-in torque test result is unqualified, the screw is adjusted again, and the running-in torque test is performed again until the test result is qualified.

[0003] The running-in test and manual adjustment are required during the running-in torque debugging. At present, the industrial computer equipment running-in and manual adjustment are adopted. Specifically, after the friction plate and leaf spring are fixed to the installation position, the rudder shaft rocker arm mechanism is installed on the installation interface of the equipment by using two manual rudder shaft rocker arm running-in equipment self-provided process screws. The six screws need to be all installed and tightened, and then the cross slider is connected to the equipment drive shaft in place, and then the equipment is started to enter the running-in step. During the running-in process, the operator observes the running-in torque value and adjusts the depth of the two running-in screws by manual and operation experience. Each product running-in needs about 45min, and personnel need to be on duty throughout the process. In addition, since the arc spring has no threaded hole, the two screws are directly in pressure contact with the arc spring. The screw only provides positive pressure to the arc spring without positioning function, which causes the position of the arc spring to deviate during the back and forth adjustment of the screw during the running-in process. Therefore, the personnel experience has a great influence factor, the debugging efficiency is low, and the product consistency is also affected.

[0004] Therefore, it is necessary to improve the rudder rocker arm running-in equipment so that it can automatically and intelligently run and improve the running-in efficiency. SUMMARY

[0005] In order to overcome the deficiencies in the background art, the present application discloses a rudder shaft rocker arm mechanism automatic running-in system.

[0006] To achieve the above-mentioned application purposes, the present application adopts the following technical solutions:

[0007] A rudder shaft rocker arm mechanism automatic running-in system, comprising a control system, characterized in that it further comprises:

[0008] A U-shaped seat;

[0009] A rudder shaft rotating actuating unit arranged at the top of the U-shaped seat and used for installing and driving the rudder shaft to rotate repeatedly;

[0010] A running-in unit arranged at the running-in area corresponding to the rudder shaft of the U-shaped seat so as to run in the repeatedly rotating rudder shaft.

[0011] The rubbing torque adjusting unit has two, respectively used for adjusting the pressure of the rubbing unit A end and B end on the rudder shaft body;

[0012] The rubbing torque adjusting unit comprises:

[0013] The screw head positioning block is arranged in the U-shaped seat.

[0014] The adjusting screw is screwed in the U-shaped seat and used for radially extruding the corresponding rubbing unit end along the rudder shaft.

[0015] The first driving device is arranged in the U-shaped seat, and the output end of the first driving device is drivingly connected with a long sleeve, the long sleeve has a screw drill movably matched in the inner cavity in the axial direction, the screw drill head is matched with the screw head positioning block, and the inner cavity of the long sleeve further has a spring for axially extruding the screw drill tail, so that the screw drill and the adjusting screw are in the matched posture.

[0016] The rudder shaft rotating actuating unit has a torque sensor for detecting the rubbing torque of the rudder shaft rocker arm.

[0017] Preferably, the rudder shaft rotating actuating unit comprises a second driving device arranged at the top of one side of the U-shaped seat, the output shaft of the second driving device extends into the inner side of the U-shaped seat, and the output shaft is coaxially connected with a rudder shaft connecting rod for mounting the rudder shaft through the torque sensor, and the end of the rudder shaft connecting rod away from the second driving device penetrates the side wall of the U-shaped seat and is rotationally connected with the side wall of the U-shaped seat.

[0018] Preferably, the torque sensor and the output shaft of the second driving device are connected through a rigid shaft coupling, and the torque sensor and the rudder shaft connecting rod are connected through a flexible shaft coupling.

[0019] Preferably, the inner side of the U-shaped seat is provided with a bearing seat corresponding to the end of the rudder shaft connecting rod close to the torque sensor, and the bearing seat and the rudder shaft connecting rod are rotationally connected through a bearing.

[0020] Preferably, the rubbing unit comprises:

[0021] The fixed block is arranged at one end of the U-shaped seat, and the other end has a U-shaped groove in the middle.

[0022] The arcuate spring has a friction plate on the inner side.

[0023] Preferably, the adjusting screw rod end away from the fixed block is provided with a necked portion, and the length of the necked portion is not greater than the thickness of the arcuate spring; the arcuate spring B end is provided with a matching hole for matching insertion of the necked portion, so as to position the arcuate spring.

[0024] Preferably, the long sleeve barrel is provided with a strip-shaped hole along its axial direction, and a locking screw is arranged through the hole, and the locking screw is matched with a screw thread.

[0025] Preferably, the long sleeve barrel is provided with a strip-shaped hole along its axial direction, and a locking screw is arranged through the hole, and the locking screw is matched with a screw thread.

[0026] The iron filings suction unit is used for cleaning the iron filings generated in the running-in process.

[0027] Preferably, the iron filings suction unit comprises a negative pressure device, and the negative pressure device is provided with a three-way valve at its air inlet end and air outlet end, and the two air inlet ends of the three-way valve are sequentially connected with a filter and a suction pipe.

[0028] Preferably, the U-shaped seat is further provided with a position sensor for detecting the angular position of the output end of the rudder shaft rotating actuating unit.

[0029] A running-in method of a rudder shaft rocker arm mechanism automatic running-in system, comprising the following steps:

[0030] Step one: assemble the rudder shaft and the running-in unit into the running-in system, and rotate the adjusting screw by using a torque of 3.5-4 Nm, so that the adjusting screw presses the end of the corresponding running-in unit;

[0031] Step two: start the rudder shaft rotating actuating unit, so that the rudder shaft rotates ±32°, and obtain the detection value of the torque sensor by using the control system, when the detection value of the torque sensor is 3.5-4 Nm, start the running-in; otherwise, adjust the adjusting screw at the end of the corresponding running-in unit A by using the corresponding running-in torque adjusting unit, until the detection value of the torque sensor is 3.5-4 Nm.

[0032] Step three: drive the rudder shaft to rotate ±32° by using the rudder shaft rotating actuating unit, then adjust the distance between the adjusting screw at the end of the corresponding running-in unit A by using the corresponding running-in torque adjusting unit, and the distance is 0.7 / 36-1 / 36 mm, and obtain the clockwise running-in torque and the counterclockwise running-in torque by using the torque sensor, when the clockwise running-in torque and the counterclockwise running-in torque of the torque sensor differ by 0.5 Nm and last for more than 2.5 seconds, adjust the distance between the adjusting screw at the end of the corresponding running-in unit B by using the corresponding running-in torque adjusting unit, and the distance is 0.7 / 36-1 / 36 mm, until the above-mentioned situation is eliminated; repeat the above-mentioned action for 15-20 times.

[0033] Step four: repeat steps two and three for 100-120 times.

[0034] Step five: start the rudder shaft rotation actuator unit, so that the rudder shaft rotates ±32°, and the torque sensor detection value is obtained by using the control system, when the torque sensor detection value is located at 3.5-4Nm, start the running-in; otherwise, the corresponding running-in torque adjusting unit is used to adjust the adjusting screw at the end of the corresponding running-in unit B, until the torque sensor detection value is located at 3.5-4Nm;

[0035] Step six: the rudder shaft is rotated ±32° by the rudder shaft rotation actuator unit, then the adjusting screw at the end of the corresponding running-in unit B is adjusted by the corresponding running-in torque adjusting unit, the distance is 0.7 / 36-1 / 36mm, and the clockwise running-in torque and the counterclockwise running-in torque are obtained by using the torque sensor, when the clockwise running-in torque and the counterclockwise running-in torque of the torque sensor are different by 0.5Nm and last for more than 2.5 seconds, the adjusting screw at the end of the corresponding running-in unit A is adjusted by the corresponding running-in torque adjusting unit, the distance is 0.7 / 36-1 / 36mm, until the above condition is eliminated; the above operation is repeated 15-20 times.

[0036] Step seven: steps five and six are repeated 15-20 times.

[0037] Due to the adoption of the technical scheme, the present application has the following beneficial effects:

[0038] 1、The present application only needs manual operation at the disassembly and assembly link, the participation time is only about 3min, and the whole running-in time is only about 303min, compared with the prior art, the personnel workload is reduced, and the running-in efficiency is improved; meanwhile, the function of one person watching over multiple machines can be realized.

[0039] 2、The present application can automatically run-in the rudder shaft, compared with the prior art relying on manual operation and operation experience, the product consistency and the subsequent debugging efficiency of the product are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is a structural schematic view of the present application;

[0041] Figure 2 It is a front view of the present application;

[0042] Figure 3 It is a left view of the present application;

[0043] Figure 4 It is a front view of the present application Figure 1 ;

[0044] Figure 5 It is an assembly view of the running-in unit and the adjusting screw in the present application;

[0045] Figure 6Structure diagram of the rubbing torque adjusting unit in the application;

[0046] Figure 7 Flow diagram of the scrap iron suction unit in the application.

[0047] In the figure: 1, U-shaped seat; 2, rudder shaft rotating actuating unit; 21, torque sensor; 22, second driving device; 23, rudder shaft connecting rod; 24, rigid coupling; 25, flexible coupling; 26, bearing seat; 3, running-in unit; 31, fixed block; 32, arcuate spring; 33, friction plate; 4, rubbing torque adjusting unit; 41, screw head positioning block; 42, adjusting screw; 421, necked portion; 43, first driving device; 44, long sleeve; 45, screw; 46, spring; 47, locking screw; 5, scrap iron suction unit; 51, negative pressure device; 52, three-way valve; 53, filter; 54, suction pipe; 6, position sensor. DETAILED DESCRIPTION

[0048] The application can be explained in detail by the following examples, and the purpose of the disclosure is to protect all technical improvements within the scope of the application. In the description of the application, it should be understood that the orientation or position relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. only corresponds to the drawings of the present application, and is for the convenience of describing the application, but does not indicate or imply that the indicated device or element must have a specific orientation.

[0049] Example one, combined with the attached Figures 1-6 A rudder shaft rocker arm mechanism automatic running-in system, comprising a control system, further comprising:

[0050] U-shaped seat 1;

[0051] Rudder shaft rotating actuating unit 2 is arranged at the top of U-shaped seat 1, and is used for mounting and driving the rudder shaft to rotate repeatedly;

[0052] Further, the rudder shaft rotating actuating unit 2 comprises a second driving device 22 arranged at the top of one side of the U-shaped seat 1. The output shaft of the second driving device 22 extends into the inside of the U-shaped seat 1, and a rudder shaft connecting rod 23 for mounting the rudder shaft is coaxially connected to the output shaft through a torque sensor 21. The end of the rudder shaft connecting rod 23 away from the second driving device 22 penetrates through the side wall of the U-shaped seat 1 and is rotationally connected with the side wall of the U-shaped seat 1. According to the need, a torque sensor 21 with a measurement range of 0-50 Nm is used.

[0053] Further, the torque sensor 21 and the output shaft of the second driving device 22 are connected through a rigid coupling 24, and the torque sensor 21 and the rudder shaft connecting rod 23 are connected through a flexible coupling 25.

[0054] According to the need, in order to increase the stability of the rudder shaft connecting rod 23, the bearing seat 26 is arranged on the inner side of the U-shaped seat 1 corresponding to the end of the rudder shaft connecting rod 23 close to the torque sensor 21, and the bearing seat 26 is rotatably connected with the rudder shaft connecting rod 23 through the bearing.

[0055] The arrangement can make the friction force between the rudder shaft and the friction plate 33 when the rudder shaft rotates, and the friction torque generated by the friction force can be measured by the torque sensor 21.

[0056] In an embodiment, the bearing seat 26 is arranged on the inner side of the U-shaped seat 1 through a screw, a needle bearing is arranged on the bearing seat 26, a thin-walled micro bearing is arranged on the front side of the U-shaped seat 1, and the rudder shaft connecting rod 23 is arranged between the two bearings; it should be noted that the front side of the U-shaped seat 1 is the side where the rudder shaft is arranged.

[0057] According to the need, the second driving device 22 includes a speed reducer and a servo motor, the speed reducer is fixed on the rear end of the U-shaped seat 1 by a screw, and the servo motor is assembled with the speed reducer and connected by a screw.

[0058] The grinding unit 3 is arranged on the U-shaped seat 1 corresponding to the grinding area of the rudder shaft, so as to grind the repeatedly rotating rudder shaft;

[0059] Further, the grinding unit 3 includes a fixed block 31 arranged on the U-shaped seat 1, a U-shaped groove is arranged on the middle of the other end of the fixed block 31, an arcuate spring 32A is inserted into the U-shaped groove, and a friction plate 33 is arranged on the inner side of the arcuate spring 32; it should be noted that the end of the arcuate spring 32A corresponds to the A end of the grinding unit 3.

[0060] Further, the screw rod end of the adjusting screw 42 away from the fixed block 31 is provided with a necked portion 421, and the length of the necked portion 421 is not greater than the thickness of the arcuate spring 32; the B end of the arcuate spring 32 is provided with a matching hole for matching insertion of the necked portion 421, so as to position the arcuate spring 32.

[0061] In use, the rudder shaft is coaxially arranged on the end of the rudder shaft connecting rod 23 away from the second driving device 22, and located on the front side of the U-shaped seat 1.

[0062] The grinding torque adjusting unit 4 has two, respectively used for adjusting the pressure of the A end and the B end of the grinding unit 3 on the shaft body of the rudder shaft;

[0063] The grinding torque adjusting unit 4 includes:

[0064] The screw head positioning block 41 is arranged on the U-shaped seat 1.

[0065] The adjusting screw 42 is screwed on the U-shaped seat 1, and is used for radially pressing the end of the corresponding grinding unit 3 along the rudder shaft;

[0066] The first driving device 43 is arranged on the U-shaped seat 1, and the output end of the first driving device 43 is drivingly connected with the long sleeve 44. The inner cavity of the long sleeve 44 is axially movably connected with the screw driver 45. Specifically, the screw driver 45 cannot rotate relative to the long sleeve 44. The head of the screw driver 45 is matched with the screw driver head positioning block 41. The inner cavity of the long sleeve 44 is further provided with the spring 46 which axially extrudes the tail of the screw driver 45, so that the screw driver 45 is in the matched posture with the adjusting screw 42. According to the need, the first driving device 43 comprises a servo motor and a speed reducer, wherein the output shaft of the speed reducer is connected with the long sleeve 44 through a rigid connecting shaft. According to the need, the front side of the U-shaped seat 1 is provided with a bracket for mounting the speed reducer.

[0067] In this way, due to the presence of the spring 46, the spring 46 extrudes the screw driver 45, so that the screw driver 45 extrudes the corresponding adjusting screw 42, and then the first driving device 43 can drive the screw driver 45 to rotate.

[0068] In order to facilitate the installation and removal of the rudder shaft, the barrel of the long sleeve 44 is provided with a strip-shaped hole along the axial direction of the barrel. The strip-shaped hole is provided with a locking screw 47 which penetrates through the strip-shaped hole and is threadedly connected with the screw driver 45. In this way, the screw driver 45 can be moved away from the corresponding adjusting screw 42, and then the position of the screw driver 45 is locked by the locking screw 47. At this time, the screw driver 45 is spaced apart from the adjusting screw 42, so as to provide an operation space for the installation and removal of the rudder shaft.

[0069] Embodiment two, combined with the attached Figures 1-6 In order to clean the iron filings generated during the grinding process, the rudder shaft rocker arm mechanism automatic grinding system further comprises an iron filings suction unit 5 for cleaning the iron filings generated during the grinding process.

[0070] The iron filings suction unit 5 comprises a negative pressure device 51. The air inlet end of the negative pressure device 51 is provided with a three-way valve 52, and the two air inlet ends of the three-way valve 52 are sequentially connected with a filter 53 and a suction pipe 54.

[0071] Further, the air inlet end of the suction pipe 54 is located on the outer side of the end portion of the arc-shaped spring 32.

[0072] According to the need, the two sides of the front side of the U-shaped seat 1 are provided with driving devices for driving the corresponding suction pipes 54. Specifically, the driving devices can drive the suction pipes 54 to move close to or away from the rudder shaft.

[0073] Embodiment three, combined with the attached Figures 1-7 In order to facilitate the user to design the program for the automatic grinding system, the U-shaped seat 1 is further provided with a position sensor 6 for detecting the angular position of the output end of the rudder shaft rotating actuator 2.

[0074] When in use, before installing the rudder shaft, the position sensor 6 is used to make the shaft rotating actuator 2 output shaft at 0°; specifically, first start the shaft rotating actuator 2, and then make the rotating actuator 2 output shaft reach the limit angle 32° or -32° of the position sensor 6, and then make the shaft rotating actuator 2 output shaft reverse rotate 32°, so that the shaft rotating actuator 2 output shaft is at 0°.

[0075] Since the rudder shaft running-in angle is about 64°, at this time, when designing the program, only the angle of ±32° of the rudder shaft rotating actuator 2 driving the rudder shaft is needed, compared with the reciprocating rotation between 0-64° or -64°-0, the reciprocating rotation of ±32° is more in line with human habits and mechanical habits.

[0076] A running-in method of a rudder shaft rocker arm mechanism automatic running-in system includes the following steps:

[0077] Step one: assemble the rudder shaft and the running-in unit 3 into the running-in system, and use the torque of 3.5-4 Nm to rotate the adjusting screw 42, so that the adjusting screw 42 extrudes the corresponding end of the running-in unit 3;

[0078] In the example, the torque of 3.5 Nm, 3.7 Nm, 3.8 Nm or 4 Nm can be used to rotate the adjusting screw 42 in this step;

[0079] Further, when the position sensor 6 exists, first make the rudder shaft rotating actuator 2 at 0° through the position sensor 6, and then assemble the rudder shaft and the running-in unit 3 into the running-in system.

[0080] Step two: start the rudder shaft rotating actuator 2, make the rudder shaft rotate ±32°, and use the control system to obtain the detection value of the torque sensor 21, when the detection value of the torque sensor 21 is located at 3.5-4 Nm, start running-in; otherwise, use the corresponding running-in torque adjusting unit 4 to adjust the adjusting screw 42 at the end of the corresponding running-in unit 3A, according to the need, the distance of adjusting the adjusting screw 42 is 0.7 / 36-1 / 36 mm each time, and then detect until the detection value of the torque sensor 21 is located at 3.5-4 Nm;

[0081] According to the need, the time for the rudder shaft rotating actuator 2 driving the rudder shaft to rotate ±32° in this step is 18-22 seconds.

[0082] Step three: the rudder shaft is rotated ±32° by the rudder shaft rotating actuating unit 2, then the adjusting screw 42 at the end of the corresponding break-in unit 3A is adjusted to be 0.7 / 36-1 / 36mm by the corresponding break-in torque adjusting unit 4, and the clockwise break-in torque and the counterclockwise break-in torque are obtained by the torque sensor 21. When the clockwise break-in torque and the counterclockwise break-in torque of the torque sensor 21 differ by 0.5Nm and last for more than 2.5 seconds, the adjusting screw 42 at the end of the corresponding break-in unit 3B is adjusted to be 0.7 / 36-1 / 36mm by the corresponding break-in torque adjusting unit 4 until the above-mentioned situation is eliminated. The above-mentioned action is repeated 15-20 times.

[0083] According to the need, the time for rotating the rudder shaft ±32° by the rudder shaft rotating actuating unit 2 in this step is 7-9 seconds, preferably 8 seconds.

[0084] In the examples, the distance of adjusting the adjusting screw 42 in this step can be 0.7 / 36mm, 0.8 / 36mm, 0.9 / 36mm or 1 / 36mm.

[0085] In the examples, the repeated action is 15, 16, 17, 18, 19 or 20 times.

[0086] Step four: steps two and three are repeated 100-120 times.

[0087] In the examples, steps two and three can be repeated 100, 105, 110, 115 or 120 times in this step.

[0088] Step five: the rudder shaft is rotated ±32° by the rudder shaft rotating actuating unit 2, and the detection value of the torque sensor 21 is obtained by the control system. When the detection value of the torque sensor 21 is 3.5-4Nm, the break-in is started. Otherwise, the adjusting screw 42 at the end of the corresponding break-in unit 3B is adjusted by the corresponding break-in torque adjusting unit 4 until the detection value of the torque sensor 21 is 3.5-4Nm.

[0089] Step six: the rudder shaft is rotated ±32° by the rudder shaft rotating actuating unit 2, then the adjusting screw 42 at the end of the corresponding break-in unit 3B is adjusted to be 0.7 / 36-1 / 36mm by the corresponding break-in torque adjusting unit 4, and the clockwise break-in torque and the counterclockwise break-in torque are obtained by the torque sensor 21. When the clockwise break-in torque and the counterclockwise break-in torque of the torque sensor 21 differ by 0.5Nm and last for more than 2.5 seconds, the adjusting screw 42 at the end of the corresponding break-in unit 3A is adjusted to be 0.7 / 36-1 / 36mm by the corresponding break-in torque adjusting unit 4 until the above-mentioned situation is eliminated. The above-mentioned action is repeated 15-20 times.

[0090] In an example, the distance of adjusting screw 42 can be adjusted 0.7 / 36mm, 0.8 / 36mm, 0.9 / 36mm or 1 / 36mm each time in this step.

[0091] In an example, the above actions are repeated 15, 16, 17, 18, 19 or 20 times.

[0092] Step seven: repeat step five and step six 15-20 times.

[0093] In an example, the above actions are repeated 15, 16, 17, 18, 19 or 20 times, and in the above steps, the control system is used for control, and in normal cases, no personnel is needed to participate.

[0094] The parts of the application not described in detail are prior art, and it is obvious for those skilled in the art that the application is not limited to the details of the above exemplary embodiments, and the application can be realized in other specific forms without departing from the spirit or essential characteristics of the application; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and all changes falling within the meaning and scope of equivalent elements are intended to be included in the application.

Claims

1. A rudder shaft rocker arm mechanism automatic break-in system comprising a control system, characterized by, Also include: U-shaped seat (1); Rudder shaft rotation actuator unit (2), provided on the top of the U-shaped seat (1), for installing and driving the rudder shaft to rotate repeatedly; Break-in unit (3), provided on the U-shaped seat (1) corresponding to the rudder shaft with break-in area, in order to facilitate the repeated rotation of the rudder shaft; The friction torque adjustment unit (4) has two, respectively for adjusting the A end and B end of the break-in unit (3) to the pressure of the rudder shaft body; Wherein, the friction torque adjustment unit (4) comprises: Screw head positioning block (41), provided on the U-shaped seat (1); Adjusting screw (42), threaded on the U-shaped seat (1), for extruding the corresponding end of the break-in unit (3) along the radial direction of the rudder shaft; The first driving device (43) is provided on the U-shaped seat (1), and the output end of the first driving device (43) is driven to be connected with a long sleeve (44), the inner cavity of the long sleeve (44) is axially movably connected with a screw driver (45), the head of the screw driver (45) is matched to penetrate the screw head positioning block (41); The inner cavity of the long sleeve (44) is further provided with a spring (46) for axially extruding the tail of the screw driver (45), so that the screw driver (45) and the adjusting screw (42) are in the cooperative state; Wherein, the rudder shaft rotation actuator unit (2) has a torque sensor (21) for detecting the rudder shaft rocker arm break-in torque; The break-in method of the rudder shaft rocker arm mechanism automatic break-in system, comprising the following steps: Step one: assemble the rudder shaft and break-in unit (3) into the break-in system, and rotate the adjusting screw (42) with a torque of 3.5-4Nm, so that the adjusting screw (42) extrudes the corresponding end of the break-in unit (3); Step two: start the rudder shaft rotation actuator unit (2), so that the rudder shaft rotates ±32°, and obtain the detection value of the torque sensor (21) by using the control system, when the detection value of the torque sensor (21) is 3.5-4Nm, start break-in; Otherwise, adjust the adjusting screw (42) of the A end of the corresponding break-in unit (3) by using the corresponding friction torque adjustment unit (4), until the detection value of the torque sensor (21) is 3.5-4Nm; Step three: drive the rudder shaft to rotate ±32° by the rudder shaft rotation actuator unit (2), then adjust the distance between the adjusting screw (42) of the A end of the corresponding break-in unit (3) by the corresponding friction torque adjustment unit (4) to 0.7 / 36-1 / 36mm, and obtain the clockwise break-in torque and the counterclockwise break-in torque by using the torque sensor (21), when the clockwise break-in torque and the counterclockwise break-in torque of the torque sensor (21) differ by 0.5Nm and last more than 2.5 seconds, adjust the distance between the adjusting screw (42) of the B end of the corresponding break-in unit (3) by the corresponding friction torque adjustment unit (4) to 0.7 / 36-1 / 36mm, until the above situation is eliminated; Repeat the above action 15-20 times; Step four: repeat steps two and three 100-120 times; Step five: start the rudder shaft rotation actuator unit (2), so that the rudder shaft rotates ±32°, and the torque sensor (21) is obtained by using the control system, when the detection value of the torque sensor (21) is located at 3.5-4Nm, start the running-in; otherwise, adjust the adjusting screw (42) at the B end of the corresponding running-in unit (3) by using the corresponding running-in torque adjusting unit (4), until the detection value of the torque sensor (21) is located at 3.5-4Nm; Step six: drive the rudder shaft to rotate ±32° by the rudder shaft rotation actuator unit (2), then adjust the adjusting screw (42) at the B end of the corresponding running-in unit (3) by the corresponding running-in torque adjusting unit (4), the distance is 0.7 / 36-1 / 36mm, and the clockwise running-in torque and the counterclockwise running-in torque are obtained by using the torque sensor (21), when the clockwise running-in torque and the counterclockwise running-in torque of the torque sensor (21) differ by 0.5Nm and last for more than 2.5 seconds, adjust the adjusting screw (42) at the A end of the corresponding running-in unit (3) by using the corresponding running-in torque adjusting unit (4), the distance is 0.7 / 36-1 / 36mm, until the above situation is eliminated; repeat the above operation 15-20 times; Step seven: repeat steps five and six 15-20 times.

2. A rudder shaft rocker arm mechanism automatic break-in system according to claim 1, characterized in that: The rudder shaft rotation actuator unit (2) comprises a second driving device (22) arranged at the top of one side of the U-shaped seat (1), the output shaft of the second driving device (22) extends into the inside of the U-shaped seat (1), and a rudder shaft connecting rod (23) for mounting the rudder shaft is coaxially connected with the output shaft through a torque sensor (21), and one end of the rudder shaft connecting rod (23) away from the second driving device (22) penetrates the side wall of the U-shaped seat (1) and is rotationally connected with the side wall of the U-shaped seat (1).

3. A rudder shaft rocker arm mechanism automatic break-in system according to claim 2, characterized in that: The torque sensor (21) and the output shaft of the second driving device (22) are connected through a rigid coupling (24), and the torque sensor (21) and the rudder shaft connecting rod (23) are connected through a flexible coupling (25).

4. A rudder shaft rocker arm mechanism automatic break-in system according to claim 2, characterized in that: A bearing seat (26) is arranged on the inside of the U-shaped seat (1) corresponding to one end of the rudder shaft connecting rod (23) close to the torque sensor (21), and the bearing seat (26) is rotationally connected with the rudder shaft connecting rod (23) through a bearing.

5. A rudder shaft rocker arm mechanism automatic break-in system according to claim 1, characterized in that: The running-in unit (3) comprises: A fixed block (31) arranged at one end of the U-shaped seat (1) and having a U-shaped groove at the middle of the other end; An arc spring (32) with the A end matched and inserted into the U-shaped groove; an inner side surface of the arc spring (32) is provided with a friction plate (33); Wherein, the screw rod end of the adjusting screw (42) away from the fixed block (31) is provided with a necking portion (421), and the length of the necking portion (421) is not greater than the thickness of the arc spring (32); a matching hole is formed in the B end of the arc spring (32) for matching insertion of the necking portion (421), so as to facilitate positioning of the arc spring (32).

6. A rudder shaft rocker arm mechanism automatic break-in system according to claim 1, characterized in that: The long sleeve (44) is provided with a strip-shaped hole along the axial direction of the barrel, and the strip-shaped hole is provided with a locking screw (47) penetrating through it, and the locking screw (47) is threadedly matched with the screw driver (45).

7. A rudder shaft rocker arm mechanism automatic break-in system according to claim 1, characterized in that: Further comprising: The iron filings suction unit (5) is used for cleaning the iron filings generated in the running-in process.

8. A rudder shaft rocker arm mechanism automatic break-in system according to claim 7, characterized in that: The iron filings suction unit (5) comprises a negative pressure device (51), the air inlet end of the negative pressure device (51) is provided with a three-way valve (52), the air outlet end of the three-way valve (52) is sequentially connected with a filter (53) and a suction pipe (54).

9. A rudder shaft rocker arm mechanism automatic break-in system according to claim 1, characterized in that: The U-shaped seat (1) is further provided with a position sensor (6) for detecting the angular position of the output end of the rudder shaft rotating actuating unit (2).

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