Rudder system transmission mechanism gap measuring device and measuring method

Abstract

The invention relates to the field of rudder system transmission mechanism gap measurement, in particular to a rudder system transmission mechanism gap measurement device and method. The device comprises a supporting unit, a gap measuring unit and a trigger display module, the gap measuring unit is rotated towards the first direction, if the reading of the trigger display module changes, rotation of the gap measuring unit is stopped, and at the moment, the angle of rotation of the gap measuring unit towards the first direction is phi 0; the rotation gap measuring unit rotates towards a second direction; if the reading of the trigger display module changes, the rotation of the gap measurement unit is stopped, at the moment, the rotation angle of the gap measurement unit towards the second direction is phi 1, and the first direction is opposite to the second direction; and the required value of the measurement value of the rudder system transmission mechanism gap measurement device is phi, and phi = phi 0-phi 1. Therefore, the problems that the standard for estimating the gap amount by manual hand feeling is difficult to unify, the estimation accuracy of the gap amount is not high, and the estimation method is difficult to widely apply are solved.

Description

Technical Field

[0001] The invention relates to the field of clearance measurement of a rudder system transmission mechanism, and in particular to a device and a method for measuring clearance of a rudder system transmission mechanism. Background Art

[0002] The transmission mechanism of the rudder system is composed of multiple components. The connection of each component will produce more or less gaps. If the total gap is too large, it will affect the transmission accuracy of the transmission mechanism. Therefore, the measurement of the total gap of the transmission mechanism is an important issue in detecting the transmission accuracy of the transmission mechanism. At present, whether the total gap of the transmission mechanism is qualified is mostly estimated by manual feeling, mainly by workers rotating the rudder shaft in the forward and reverse directions. However, this method has the problem that the transmission gap is generally small, it is difficult to distinguish the difference, and everyone has different subjective feelings. It is difficult to unify the standard for estimating the gap by manual feel, the estimation accuracy of the gap is not high, and the estimation method is difficult to be widely used. Summary of the invention

[0003] In order to solve the problem of inaccurate estimation of transmission clearance due to manual rotation of the rudder shaft, the present invention provides a rudder system transmission mechanism clearance measuring device and a measuring method.

[0004] In a first aspect, this embodiment provides a rudder system transmission mechanism clearance measuring device, comprising:

[0005] A support unit, a gap measuring unit, and a trigger display module; the support unit and the gap measuring unit are detachably connected; the support unit and the trigger display module are detachably connected;

[0006] The rudder system transmission mechanism gap measuring device includes a first operating state and a second operating state; the first operating state includes: rotating the gap measuring unit in a first direction, and if the reading of the trigger display module changes, stopping the rotation of the gap measuring unit, at this time, the rotation angle of the gap measuring unit in the first direction is φ0; the second operating state includes: rotating the gap measuring unit in a second direction; if the reading of the trigger display module changes, stopping the rotation of the gap measuring unit, at this time, the rotation angle of the gap measuring unit in the second direction is φ1, and the first direction is opposite to the second direction; then the required value of the measurement value of the rudder system transmission mechanism gap measuring device is φ, φ=|φ0-φ1|.

[0007] In some embodiments, the gap measurement unit includes a scale module, a pointing module, a first transmission module and a second transmission module; the scale module includes a scale plate, a first hole and a second hole, the scale plate is semicircular, and there are multiple second holes; the first hole and the second hole are opened on the scale plate, the center of the first hole is the same as the center of the scale plate, and the support unit is detachably connected to the scale plate through the second hole; scales evenly distributed along the semicircular periphery are provided on one surface of the scale plate, a limit bushing is provided between the first transmission module and the support unit, and the limit bushing The outer circumference of the positioning bushing is fixedly connected to the supporting unit; the outer circumference of the limiting bushing is fixedly connected or movably connected to the first hole; the inner circumference of the limiting bushing is movably connected to the first transmission module; a baffle is provided on the first transmission module, and the upper end surface of the limiting bushing abuts against the baffle; one end of the pointing module is fixedly connected to one end of the first transmission module, and the other end points to the scale on the scale plate; the other end of the first transmission module is detachably connected to the second transmission module; by rotating the pointing module, the first transmission module can drive the second transmission module to rotate synchronously with the pointing module.

[0008] In some embodiments, the support unit includes a support frame body, a first support plate, and a second support plate; the first support plate is fixedly connected to one end of the support frame body; the second support plate is fixedly connected to the support frame body; a surface of the first support plate is parallel to a surface of the second support plate; the outer peripheral surface of the limit bushing is detachably connected to the first support plate, the scale plate is detachably connected to the first support plate, and the trigger display module is detachably connected to the second support plate; the trigger display module is located in the area between the first support plate and the second support plate.

[0009] In some embodiments, the rudder system transmission mechanism gap measuring device also includes a position adjustment unit, and the position adjustment unit includes a sliding module, a slide rail module, and a locking module; the slide rail module is detachably connected to the second support plate; the slide rail module is located between the first support plate and the second support plate; the sliding module is slidably connected to the slide rail module, and the locking module is threadably connected to the sliding module; the locking module is used to lock the relative position of the slide rail module and the sliding module; the trigger display module is detachably connected to the sliding module.

[0010] In some embodiments, the sliding module includes a first sliding sub-module and a second sliding sub-module; the locking module includes a first locking sub-module and a second locking sub-module; one end of the first sliding sub-module is slidably connected to the slide rail module; the other end is slidably connected to one end of the second sliding sub-module; the other end of the second sliding sub-module is detachably connected to the trigger display module; the first locking sub-module is threadedly connected to the first sliding sub-module; the second locking sub-module is threadedly connected to the second sliding sub-module.

[0011] In some embodiments, the rudder system transmission mechanism clearance measuring device further includes a clamping module, which is detachably connected to the second support plate, and the clamping module is located in an area directly facing the first support plate and the second support plate.

[0012] In some embodiments, the first transmission module is a transmission rod; the second transmission module is a driving gear, one end of the transmission rod is fixedly connected to the driving gear, and the other end is fixedly connected to the pointing module.

[0013] In some embodiments, the first direction is a clockwise rotation direction of the transmission rod, and the second direction is a counterclockwise rotation direction of the transmission rod.

[0014] In some embodiments, the trigger display module is a dial indicator or a micrometer.

[0015] In a second aspect, this embodiment further discloses a method for measuring the clearance of a rudder system transmission mechanism, which is applied to the device for measuring the clearance of a rudder system transmission mechanism described in the first aspect, and the method comprises:

[0016] Rotate the gap measurement unit in a first direction, and if the reading of the trigger display module changes, stop rotating the gap measurement unit, and at this time, the gap measurement unit rotates in the first direction at an angle of φ0;

[0017] Based on the rotation angle of the gap measurement unit in the first direction being φ0, the gap measurement unit is rotated in the second direction; if the reading of the trigger display module changes, the rotation of the gap measurement unit is stopped, and at this time, the rotation angle of the gap measurement unit in the second direction is φ1;

[0018] Based on the rotation angle of the gap measurement unit toward the second direction being φ1, the required value of the measurement value of the rudder system transmission mechanism gap measurement device is φ, φ=|φ0-φ1|.

[0019] In order to solve the problem of inaccurate estimation of transmission clearance due to manual rotation of the rudder shaft, the present invention has the following advantages:

[0020] By rotating the gap measuring unit in the first direction, if the reading of the trigger display module changes, the gap measuring unit is stopped from rotating, and the angle of rotation of the gap measuring unit in the first direction is φ0; the gap measuring unit is rotated in the second direction; if the reading of the trigger display module changes, the gap measuring unit is stopped from rotating, and the angle of rotation of the gap measuring unit in the second direction is φ1, and the first direction is opposite to the second direction; then the required value of the measurement value of the rudder system transmission mechanism gap measuring device is φ, φ=|φ0-φ1|. This solves the problem that it is difficult to unify the standard of the gap estimation by manual feel, the accuracy of the gap estimation is not high, and the estimation method is difficult to be widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the transmission mechanism of the rudder system;

[0022] Figure 2 It is a schematic diagram of the planar structure of a rudder system transmission mechanism clearance measuring device;

[0023] Figure 3 It is a schematic diagram of the scale module structure;

[0024] Figure 4 is a structural schematic diagram of a position adjustment unit;

[0025] Figure 5 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0026] In the figure: 10, support unit; 11, support frame; 12, first support plate; 13, second support plate; 20, gap measurement unit; 21, scale module; 211, scale plate; 212, first hole; 213, second hole; 22, pointing module; 23, first transmission module; 24, second transmission module; 25, limit bushing; 26, baffle; 30, trigger display module; 40, position adjustment unit; 41, slide rail module; 42, sliding module; 421, first sliding sub-module; 422, second sliding sub-module; 43, locking module; 431, first locking sub-module; 432, second locking sub-module. DETAILED DESCRIPTION

[0027] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0028] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0029] like Figure 1 As shown, the rudder system transmission mechanism includes a screw, a first bearing, a second bearing, a driven gear, a transmission arm, and a rudder shaft; wherein the first bearing and the second bearing are detachably connected to both ends of the screw in the screw, the driven gear is arranged at the end of the screw close to the first bearing, one end of the transmission arm is detachably connected to the outer peripheral surface of the nut in the screw, and the other end is detachably connected to the rudder shaft.

[0030] This embodiment discloses a rudder system transmission mechanism clearance measuring device, such as Figure 2 As shown, including:

[0031] A support unit 10, a gap measuring unit 20, and a trigger display module 30; the support unit 10 and the gap measuring unit 20 are detachably connected; the support unit 10 and the trigger display module 30 are detachably connected;

[0032] The rudder system transmission mechanism gap measuring device includes a first operating state and a second operating state; the first operating state includes: rotating the gap measuring unit 20 in a first direction, if the reading of the trigger display module 30 changes, then stopping the rotation of the gap measuring unit 20, at this time the rotation angle of the gap measuring unit 20 in the first direction is φ0; the second operating state includes: rotating the gap measuring unit 20 in a second direction; if the reading of the trigger display module 30 changes, then stopping the rotation of the gap measuring unit 20, at this time the rotation angle of the gap measuring unit 20 in the second direction is φ1, the first direction is opposite to the second direction; then the required value of the measurement value of the rudder system transmission mechanism gap measuring device is φ, φ=|φ0-φ1|.

[0033] In this embodiment, by rotating the gap measuring unit 20 toward the first direction, if the reading of the trigger display module 30 changes, the gap measuring unit 20 is stopped from rotating, and the angle of rotation of the gap measuring unit 20 toward the first direction is φ0; the gap measuring unit 20 is rotated toward the second direction; if the reading of the trigger display module 30 changes, the gap measuring unit 20 is stopped from rotating, and the angle of rotation of the gap measuring unit 20 toward the second direction is φ1, and the first direction is opposite to the second direction; then the required value of the measurement value of the rudder system transmission mechanism gap measuring device is φ, φ=|φ0-φ1|. This solves the problem that it is difficult to unify the standard of the gap estimation by manual feel, the accuracy of the gap estimation is not high, and the estimation method is difficult to be widely used.

[0034] In some embodiments, Figure 2 , 3As shown, the gap measurement unit 20 includes a scale module 21, a pointing module 22, a first transmission module 23 and a second transmission module 24; the scale module 21 includes a scale plate 211, a first hole 212 and a second hole 213, the scale plate 211 is semicircular, and there are multiple second holes 213; the first hole 212 and the second hole 213 are opened on the scale plate 211, the center of the first hole 212 is the same as the center of the scale plate 211, and the support unit 10 is detachably connected to the scale plate 211 through the second hole 213; a surface of the scale plate 211 is provided with scales evenly distributed along the periphery of the semicircle, and a limited position liner is provided between the first transmission module 23 and the support unit 10 Sleeve 25, the outer circumference of the limiting bushing 25 is fixedly connected to the supporting unit 10; the outer circumference of the limiting bushing 25 is fixedly connected or movably connected to the first hole 212; the inner circumference of the limiting bushing 25 is movably connected to the first transmission module 23; a baffle 26 is provided on the first transmission module 23, and the upper end surface of the limiting bushing 25 abuts against the baffle 26; one end of the pointing module 22 is fixedly connected to one end of the first transmission module 23, and the other end points to the scale on the scale plate 211; the other end of the first transmission module 23 is detachably connected to the second transmission module 24; rotate the pointing module 22, and the first transmission module 23 can drive the second transmission module 24 to rotate synchronously with the pointing module 22.

[0035] In this embodiment, the driven gear is connected to the second transmission module 24 in transmission connection. By rotating the pointing module 22, the first transmission module 23 can drive the second transmission module 24 to rotate synchronously with the pointing module 22, so that the second transmission module 24 can drive the driven gear to rotate, and the driven gear drives the screw to rotate, so that the transmission arm drives the rudder shaft to rotate, so that the rudder shaft presses against the trigger display module 30, and the reading of the trigger display module 30 changes. By changing the reading of the trigger display module 30 and the rotation angle of the pointing module 22 on the scale plate 211, the maximum clearance in the rudder system transmission mechanism can be obtained. By rotating the pointing module 22 in the first direction by an angle φ0, the first transmission module 23 and the second rotation module are driven, and the second transmission module 24 drives the screw in the screw to rotate, so that the nut drives the rudder shaft to rotate through the transmission arm, and the reading of the rudder shaft triggering the display module 30 changes, and the pointing module 22 stops rotating; then the pointing module 22 is rotated in the second direction by an angle φ1; the reading of the rudder shaft triggering the display module 30 changes, and the pointing module 22 stops rotating, thereby calculating the angle φ corresponding to the maximum gap of the rudder system transmission mechanism = |φ0-φ1|, which solves the problem of inaccurate estimation of the transmission gap due to manual manual rotation of the rudder shaft. It should be noted that in this embodiment, the first direction and the second direction are opposite directions of rotation.

[0036] In some embodiments, Figure 2 As shown, the support unit 10 includes a support frame body 11, a first support plate 12, and a second support plate 13; the first support plate 12 is fixedly connected to one end of the support frame body 11; the second support plate 13 is fixedly connected to the support frame body 11; a surface of the first support plate 12 is parallel to a surface of the second support plate 13; the outer peripheral surface of the limit bushing 25 is detachably connected to the first support plate 12, the scale plate 211 is detachably connected to the first support plate 12, and the trigger display module 30 is detachably connected to the second support plate 13; the trigger display module 30 is located in the area between the first support plate 12 and the second support plate 13.

[0037] In this embodiment, the outer peripheral surface of the limit bushing 25 is detachably connected to the first support plate 12, the scale plate 211 is detachably connected to the first support plate 12, and the trigger display module 30 is detachably connected to the second support plate 13; the trigger display module 30 is arranged on a surface of the second support plate 13, and the trigger display module 30 is located in the area between the first support plate 12 and the second support plate 13. When measuring the clearance of the rudder system transmission mechanism, the second bearing at the end of the screw can be fixed on the second support plate 13, and the rotation of the second bearing can be realized, and the driven gear is connected to the second transmission module 24 in transmission, so that the rudder system transmission mechanism can be fixed more conveniently and the measurement operation is convenient.

[0038] In some embodiments, Figure 2 , 4 As shown in , 5, the rudder system transmission mechanism gap measuring device also includes a position adjustment unit 40, and the position adjustment unit 40 includes a sliding module 42, a slide rail module 41, and a locking module 43; the slide rail module 41 is detachably connected to the second support plate 13; the slide rail module 41 is located between the first support plate 12 and the second support plate 13; the sliding module 42 is slidably connected to the slide rail module 41, and the locking module 43 is threadably connected to the sliding module 42; the locking module 43 is used to lock the relative position of the slide rail module 41 and the sliding module 42; the trigger display module 30 is detachably connected to the sliding module 42.

[0039] In this embodiment, by setting a position adjustment unit 40, the position adjustment unit 40 includes a sliding module 42, a slide rail module 41, and a locking module 43. By detachably setting the slide rail module 41 on the second support plate 13, and the sliding module 42 is slidably connected with the slide rail module 41, the locking module 43 can lock the position of the sliding module 42. When measuring the clearance of the rudder system transmission mechanism, the position of the sliding module 42 can be adjusted, so that the trigger display unit can be in contact with the rudder shaft, thereby realizing the convenience of operation of the device. When the rudder shaft does not move, the mobile trigger display module 30 is in contact with the rudder shaft, and the interference of external factors on the measurement process is avoided as much as possible, ensuring the accuracy of the measurement result.

[0040] In some embodiments, Figure 5 As shown, the sliding module 42 includes a first sliding sub-module 421 and a second sliding sub-module 422; the locking module 43 includes a first locking sub-module 431 and a second locking sub-module 432; one end of the first sliding sub-module 421 is slidably connected to the slide rail module 41; the other end is slidably connected to one end of the second sliding sub-module 422; the other end of the second sliding sub-module 422 is detachably connected to the trigger display module 30; the first locking sub-module 431 is threadedly connected to the first sliding sub-module 421; the second locking sub-module 432 is threadedly connected to the second sliding sub-module 422.

[0041] In this embodiment, a first sliding submodule 421, a second sliding submodule 422, a first locking submodule 431, and a second locking submodule 432 are provided; one end of the first sliding submodule 421 is slidingly connected to the slide rail module 41; the other end is slidingly connected to one end of the second sliding submodule 422; the other end of the second sliding submodule 422 is detachably connected to the trigger display module 30; the first locking submodule 431 is threadedly connected to the first sliding submodule 421; the second locking submodule 432 is threadedly connected to the second sliding submodule 422. The trigger display module 30 can be moved horizontally left and right and front and back, thereby greatly increasing the movement range of the trigger display module 30. The trigger display module 30 can be easily brought into contact with the rudder shaft, and the positions of the first sliding submodule 421 and the second sliding submodule 422 can be locked by twisting the first locking submodule 431 and the second locking submodule 432, thereby ensuring the fixation of the positions of the first sliding submodule 421 and the second sliding submodule 422 during measurement and ensuring the accuracy of the measurement results.

[0042] In some embodiments, the rudder system transmission mechanism gap measuring device also includes a clamping module (not shown in the figure), which is detachably connected to the second support plate 13 and is located in the area directly opposite to the first support plate 12 and the second support plate 13.

[0043] In this embodiment, the clamping module can be a three-claw chuck. By using the three-claw chuck to clamp the second bearing, the three-claw chuck can be engaged with the outer ring of the second bearing. When the three-claw chuck clamps the second bearing, the screw in the rudder system transmission mechanism can rotate freely, and the driven gear can be connected to the second transmission module 2424. By setting the clamping module, the second bearing can be fixed, which can ensure that the screw rotates more stably, avoiding the problem of unstable fixation when manually fixing the second bearing, resulting in large errors in the measurement results.

[0044] In some embodiments, Figure 2 As shown, the first transmission module 23 is a transmission rod; the second transmission module 24 is a driving gear, one end of the transmission rod is fixedly connected to the driving gear, and the other end is fixedly connected to the pointing module 22.

[0045] In this embodiment, the first transmission module 23 is a transmission rod; the second transmission module 24 is a driving gear, and the driving gear can mesh with the driven gear in the rudder system transmission mechanism. The use of gear transmission can improve the transmission efficiency, thereby improving the accuracy of the measurement result. In your embodiment, the gear ratio of the driving gear and the driven gear is 1:1, and the gap size is determined by the rotation angle of the pointing module 22. When the number of teeth of the driving gear and the driven gear is different, the gap size is determined by the gear ratio.

[0046] In some embodiments, the first direction is a clockwise rotation direction of the transmission rod, and the second direction is a counterclockwise rotation direction of the transmission rod.

[0047] In this embodiment, by rotating the pointing module 22 clockwise and counterclockwise, the clearance of the rudder system transmission mechanism is measured through two rotations, which can improve the accuracy of the measurement result.

[0048] In some embodiments, the trigger display module 30 is a dial indicator or a micrometer.

[0049] In this embodiment, the trigger display module 30 is a dial indicator or a micrometer. The pin of the dial indicator or the micrometer is in contact with the rudder shaft. When the reading of the dial indicator or the micrometer changes, it can be judged that the rudder shaft is ready to rotate, thereby facilitating the intuitive observation of the rotation of the rudder shaft, which is beneficial for stopping the rotation of the pointing module 22 in time and improving the accuracy of the measurement result.

[0050] This embodiment provides a method for measuring clearance of a rudder system transmission mechanism, comprising the following steps:

[0051] Rotate the gap measurement unit 20 in a first direction. If the reading of the trigger display module 30 changes, stop rotating the gap measurement unit 20. At this time, the gap measurement unit 20 rotates in the first direction at an angle of φ0;

[0052] Based on the rotation angle of the gap measurement unit 20 in the first direction being φ0, the gap measurement unit 20 is rotated in the second direction; if the reading of the trigger display module 30 changes, the gap measurement unit 20 is stopped from rotating, and at this time, the rotation angle of the gap measurement unit 20 in the second direction is φ1;

[0053] Based on the rotation angle of the gap measurement unit 20 toward the second direction being φ1, the required value of the measurement value of the rudder system transmission mechanism gap measurement device is φ, φ=|φ0-φ1|.

[0054] In this embodiment, by rotating the gap measuring unit 20 toward the first direction, if the reading of the trigger display module 30 changes, the gap measuring unit 20 is stopped from rotating, and the angle of rotation of the gap measuring unit 20 toward the first direction is φ0; the gap measuring unit 20 is rotated toward the second direction; if the reading of the trigger display module 30 changes, the gap measuring unit 20 is stopped from rotating, and the angle of rotation of the gap measuring unit 20 toward the second direction is φ1, and the first direction is opposite to the second direction; then the required value of the measurement value of the rudder system transmission mechanism gap measuring device is φ, φ=|φ0-φ1|. This solves the problem that it is difficult to unify the standard of the gap estimation by manual feel, the accuracy of the gap estimation is not high, and the estimation method is difficult to be widely used.

[0055] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present disclosure.

Claims

1. A rudder system transmission mechanism clearance measuring device, characterized in that: include: Support unit, gap measurement unit, trigger display module; The support unit is detachably connected to the gap measurement unit; the support unit is detachably connected to the trigger display module; The rudder system transmission mechanism gap measuring device includes a first operating state and a second operating state; the first operating state includes: rotating the gap measuring unit in a first direction, and if the reading of the trigger display module changes, stopping the rotation of the gap measuring unit, at this time, the rotation angle of the gap measuring unit in the first direction is φ0; the second operating state includes: rotating the gap measuring unit in a second direction; if the reading of the trigger display module changes, stopping the rotation of the gap measuring unit, at this time, the rotation angle of the gap measuring unit in the second direction is φ1, and the first direction is opposite to the second direction; then the required value of the measurement value of the rudder system transmission mechanism gap measuring device is φ, φ=|φ0-φ1|.

2. A rudder system transmission mechanism clearance measuring device according to claim 1, characterized in that: The gap measurement unit includes a scale module, a pointing module, a first transmission module and a second transmission module; the scale module includes a scale plate, a first hole and a second hole, the scale plate is semicircular, and there are multiple second holes; the first hole and the second hole are arranged on the scale plate, the center of the first hole is the same as the center of the scale plate, and the support unit is detachably connected to the scale plate through the second hole; a surface of the scale plate is provided with scales evenly distributed along the semicircular periphery, a limit bushing is provided between the first transmission module and the support unit, and the limit bushing The outer circumference is fixedly connected to the supporting unit; the outer circumference of the limiting bushing is fixedly connected or movably connected to the first hole; the inner circumference of the limiting bushing is movably connected to the first transmission module; a baffle is provided on the first transmission module, and the upper end surface of the limiting bushing abuts against the baffle; one end of the pointing module is fixedly connected to one end of the first transmission module, and the other end points to the scale on the scale plate; the other end of the first transmission module is detachably connected to the second transmission module; by rotating the pointing module, the first transmission module can drive the second transmission module to rotate synchronously with the pointing module.

3. A rudder system transmission mechanism clearance measuring device according to claim 2, characterized in that: The support unit includes a support frame body, a first support plate, and a second support plate; the first support plate is fixedly connected to one end of the support frame body; the second support plate is fixedly connected to the support frame body; a surface of the first support plate is parallel to a surface of the second support plate; the outer peripheral surface of the limit bushing is detachably connected to the first support plate, the scale plate is detachably connected to the first support plate, and the trigger display module is detachably connected to the second support plate; the trigger display module is located in the area between the first support plate and the second support plate.

4. A rudder system transmission mechanism clearance measuring device according to claim 3, characterized in that: The rudder system transmission mechanism gap measuring device also includes a position adjustment unit, which includes a sliding module, a slide rail module, and a locking module; the slide rail module is detachably connected to the second support plate; the slide rail module is located between the first support plate and the second support plate; the sliding module is slidably connected to the slide rail module, and the locking module is threadably connected to the sliding module; the locking module is used to lock the relative position of the slide rail module and the sliding module; the trigger display module is detachably connected to the sliding module.

5. A rudder system transmission mechanism clearance measuring device according to claim 4, characterized in that: The sliding module includes a first sliding submodule and a second sliding submodule; the locking module includes a first locking submodule and a second locking submodule; one end of the first sliding submodule is slidably connected to the slide rail module; the other end is slidably connected to one end of the second sliding submodule; the other end of the second sliding submodule is detachably connected to the trigger display module; the first locking submodule is threadedly connected to the first sliding submodule; the second locking submodule is threadedly connected to the second sliding submodule.

6. A rudder system transmission mechanism clearance measuring device according to claim 5, characterized in that: The rudder system transmission mechanism clearance measuring device further comprises a clamping module, which is detachably connected to the second support plate and is located in an area directly facing the first support plate and the second support plate.

7. A rudder system transmission mechanism clearance measuring device according to claim 6, characterized in that: The first transmission module is a transmission rod; the second transmission module is a driving gear, one end of the transmission rod is fixedly connected to the driving gear, and the other end is fixedly connected to the pointing module.

8. A rudder system transmission mechanism clearance measuring device according to claim 7, characterized in that: The first direction is a clockwise rotation direction of the transmission rod, and the second direction is a counterclockwise rotation direction of the transmission rod.

9. A rudder system transmission mechanism clearance measuring device according to claim 8, characterized in that: The trigger display module is a dial indicator or a micrometer.

10. A measurement method applied to the rudder system transmission mechanism clearance measurement device according to any one of claims 1 to 9, characterized in that: The method comprises: Rotate the gap measurement unit in a first direction, and if the reading of the trigger display module changes, stop rotating the gap measurement unit, and at this time, the gap measurement unit rotates in the first direction at an angle of φ0; Based on the rotation angle of the gap measurement unit in the first direction being φ0, the gap measurement unit is rotated in the second direction; if the reading of the trigger display module changes, the rotation of the gap measurement unit is stopped, and at this time, the rotation angle of the gap measurement unit in the second direction is φ1; Based on the rotation angle of the gap measurement unit toward the second direction being φ1, the required value of the measurement value of the rudder system transmission mechanism gap measurement device is φ, φ=|φ0-φ1|.

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