Shifting fork type steering engine maintenance method

Abstract

The invention relates to a shifting fork type steering engine maintenance method, which comprises the following steps of: 1, firstly, adjusting a tiller to a zero position of a rudder pushing mechanism, and then, fixedly connecting the tiller with an upper rudder bearing; 2, the center of the rudder pushing mechanism coincides with the center of the tiller; thirdly, the sliding block and the lining plate are dismantled, the flatness of the installation face of each part is detected, and it is ensured that the flatness of the installation face meets the requirement; fourthly, the sliding block with the qualified flatness and the lining plate are installed again; fifthly, an adjusting gasket is additionally arranged between the lining plate and the sliding block according to the gap value by taking the plane of the tiller shifting fork as the reference; and sixthly, after an adjusting gasket, a lining plate and a sliding block are fixed into a whole, the adjusting gasket, the lining plate and the sliding block are placed in a corresponding tiller shifting fork, then the gap between the tiller and the sliding block is adjusted till the gap meets the installation requirement, and then the sliding block and a plunger are fixedly connected through a plunger pin. Therefore, according to the design, the gap between the tiller shifting fork and the sliding block of the shifting fork type steering engine can be maintained.

Description

Technical Field

[0001] The invention relates to a steering gear maintenance method, belongs to the field of ship equipment maintenance, and in particular to a slewing fork type steering gear maintenance method. Background Art

[0002] The scotch yoke steering gear is a type of rudder pushing mechanism. At present, the scotch yoke steering gear occupies a large share in the ship market due to its reliable operation, strong adaptability, easy processing and maintenance. During the application of the scotch yoke steering gear, as the use time increases, the tiller fork and the slider (or roller) in the rudder pushing mechanism will have a certain amount of wear, resulting in an excessive gap between the tiller fork and the slider (or roller) in the rudder pushing mechanism, thereby deteriorating the steering stability and steering accuracy; at this stage, during maintenance, because the tiller is an oversized part, it is inconvenient to remove and replace it with a new one, the maintenance cost is high, and the maintenance difficulty and efficiency are high. Therefore, it is necessary to provide a maintenance method, without removing the tiller, to directly perform efficient maintenance and adjustment of the tiller fork and the slider (or roller) on board, so that the gap meets the initial installation requirements, so as to ensure that the gap between the tiller fork and the slider (or roller) is qualified.

[0003] The Chinese patent application with application number 202011187224.X and application date October 30, 2020 discloses a method for quick temporary repair of a ship's suspended rudder bearing, comprising: S1. Processing a support pad according to the descent distance of the rudder system, leaving a margin; S2. Supporting it below the fork position with a jacking device; S3. Measuring the gap a between the upper plane of the four forks and the steering gear plunger and the gap b between the lower plane of the forks and the steering gear plunger respectively, and raising the rudder system with a jacking device; S4. Measuring the distance c between the rudder system locking ring and the top cover below the four forks of the tiller handle, measuring the gap a′ between the upper plane of the fork and the steering gear plunger at the four fork positions and the gap b′ between the lower plane of the fork and the steering gear plunger respectively, and calculating the theoretical thickness X′ of the support pad at the corresponding position of the fork, X′=c-0.5×(a′-b′); S5. Processing the support pad according to the thickness X′, and installing the support pad between the rudder system locking ring and the top cover. Although the patent can raise the lowered rudder system without replacing the rudder bearing to meet the use requirements, it still has the following defects: This design cannot repair the gap between the tiller fork and the slider of the fork-type servo.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects and problems existing in the prior art that the gap between the tiller fork and the slider of the fork type servo is not able to be repaired, and to provide a fork type servo maintenance method capable of repairing the gap between the tiller fork and the slider of the fork type servo.

[0006] To achieve the above purpose, the technical solution of the present invention is: a slewing fork type steering gear maintenance method, the slewing fork type steering gear maintenance method comprising the following steps: Step 1: first adjust the tiller to the zero position of the push-rudder mechanism, and then fix the tiller to the upper rudder bearing; Step 2: First measure the distances from the four oil cylinder reference points to the center of the tiller handle. When the distances from the four oil cylinder reference points to the center of the tiller handle are equal, the center of the push-rudder mechanism coincides with the center of the tiller handle, and proceed to step 3. When the distances from the four oil cylinder reference points to the center of the tiller handle are not equal, readjust the push-rudder mechanism until the center of the push-rudder mechanism coincides with the center of the tiller handle, stop adjusting the push-rudder mechanism, and proceed to step 3. Step 3: First remove the slider and liner from the push-rudder mechanism, then check the flatness of each slider, liner, and tiller mounting surface. When the flatness meets the installation requirements, proceed to step 4; when the flatness does not meet the installation requirements, first grind the mounting surface of the parts until the flatness of the slider, liner, and tiller mounting surface meets the installation requirements, then stop grinding and proceed to step 4; Step 4: First reinstall the slider and liner with qualified flatness; Step 5: firstly place the four reassembled sliders and lining plates in the middle of the corresponding tiller forks, and fix the sliders and the plungers with the plunger pins, and then adjust the rudder pushing mechanism so that the two diagonal tiller forks in the same plane are closely fitted with the mounting surfaces of the corresponding lining plates and the gap values ​​between the mounting surfaces are equal, and then measure the gap value between the other diagonal tiller forks in the same plane and the mounting surface of the lining plates; then determine the thickness of the adjustment gasket according to the gap value between the other diagonal tiller forks in the same plane and the mounting surface of the lining plates, and then process the adjustment gasket of the corresponding thickness; Step 6: First remove the above-mentioned slider and liner from the plunger, place the adjusting gasket between the corresponding slider and liner, and then fix them together. Then place the slider, adjusting gasket and liner that are fixed as one in the middle of the corresponding tiller handle fork. Finally, adjust the gap between the tiller handle and the slider to meet the installation requirements, and then fix the slider and the plunger together through the plunger pin.

[0007] In the third step, the slider, lining plate and tiller handle mounting surfaces refer to: the planes where the slider, lining plate and tiller handle are in contact with each other; the mounting surfaces of the tiller handle in the same plane are respectively the first tiller handle mounting surface, the second tiller handle mounting surface, the third tiller handle mounting surface and the fourth tiller handle mounting surface; the mounting surfaces of the slider in the same plane are respectively the first slider mounting surface, the second slider mounting surface, the third slider mounting surface and the fourth slider mounting surface; the mounting surfaces of the lining plate in the same plane are respectively the first lining plate mounting surface, the second lining plate mounting surface, the third lining plate mounting surface, the fourth lining plate mounting surface, the fifth lining plate mounting surface, the sixth lining plate mounting surface, the seventh lining plate mounting surface and the eighth lining plate mounting surface.

[0008] In the fifth step, the step of determining the thickness of the adjustment gasket according to the gap value between the tiller fork at another diagonal angle in the same plane and the mounting surface of the liner, and then processing the adjustment gasket of corresponding thickness means: determining the thickness of the new liner according to the gap value between the tiller fork at another diagonal angle in the same plane and the mounting surface of the liner, and then processing the new liner of corresponding thickness; In the sixth step, the above-mentioned slider and liner are first removed from the plunger, the adjustment gasket is placed between the corresponding slider and the liner, and then fixedly connected, and then the slider, adjustment gasket and liner fixed as one are placed in the middle of the corresponding tiller handle fork, and finally the gap between the tiller handle and the slider is adjusted to meet the installation requirements, and then the slider and the plunger are fixedly connected by the plunger pin. It means: first remove the above-mentioned slider and liner from the plunger, place the new liner on the outside of the installation surface of the corresponding slider, and fit it with the installation surface on the outside of the slider, and then fix the new liner and the slider by countersunk screws, and then place the slider and the new liner fixed as one in the middle of the corresponding tiller handle fork, and finally adjust the gap between the tiller handle and the slider to meet the installation requirements, and then fix the slider and the plunger by the plunger pin.

[0009] In the first step, adjusting the tiller handle to the zero position of the push-steering mechanism means: steering so that the pointer on the push-steering mechanism coincides with the zero position of the scale plate; In the first step, the step of then fixing the tiller handle and the upper rudder bearing in a fixed connection refers to spot welding the tooling plate to the tiller handle and the upper rudder bearing respectively, and fixing the tiller handle and the upper rudder bearing in a fixed connection.

[0010] In the second step, first measuring the distance values ​​from the four oil cylinder reference points to the center of the tiller handle means: using a diagonal measuring tool to test the distance value from each oil cylinder reference point to the center of the tiller handle respectively, and obtaining the distance values ​​from the four oil cylinder reference points to the center of the tiller handle are L1, L2, L3, and L4 respectively; In the second step, when the distance values ​​from the four oil cylinder reference points to the center of the tiller are equal, it means that when the absolute value of the difference between any two of the distance values ​​L1, L2, L3, and L4 from the four oil cylinder reference points to the center of the tiller is 0-0.5 mm, the center of the push steering mechanism coincides with the center of the tiller; In the second step, the readjustment of the push-steering mechanism refers to: first removing the plunger pin, and then pushing the corresponding plunger in the push-steering mechanism to adjust the relative positions of the four cylinder reference points and the center of the push-steering mechanism.

[0011] In the third step, the flatness detection of each slider, lining plate, and tiller handle mounting surface refers to: firstly applying indigo pigment on each slider, lining plate, and tiller handle mounting surface respectively, then using a measuring plate to fit the mounting surface coated with indigo pigment respectively, and then observing the distribution of indigo pigment on the measuring plate; if the indigo pigment on the measuring plate is evenly distributed, the flatness meets the requirement, and if the indigo pigment on the measuring plate is unevenly distributed, the flatness does not meet the requirement.

[0012] In the fourth step, the reinstallation of the slider and liner with qualified flatness first means: first place the liner on one side in the same plane on the outside of the corresponding slider, and fit the third liner mounting surface with the first slider mounting surface, and the fourth liner mounting surface with the second slider mounting surface respectively, and then fix the slider and the liner through countersunk screws; then place the liner on the other side in the same plane on the outside of the corresponding slider, and fit the seventh liner mounting surface with the third slider mounting surface, and the eighth liner mounting surface with the fourth slider mounting surface respectively, and then fix the slider and the liner through countersunk screws.

[0013] In the fifth step, adjusting the push-rudder mechanism means: pushing the corresponding plunger in the push-rudder mechanism to adjust the position; In the fifth step, the two diagonal tiller forks in the same plane are closely fitted with the mounting surfaces of the corresponding lining plates, and the gap values ​​between the mounting surfaces are equal, which means that the gap value between the diagonal first lining plate mounting surface and the first tiller mounting surface in the same plane is a1, and the gap value between the sixth lining plate mounting surface and the fourth tiller mounting surface is a2, and the first lining plate mounting surface and the first tiller mounting surface, and the sixth lining plate mounting surface and the fourth tiller mounting surface are closely fitted, respectively, and a1 and a2 are equal; In the fifth step, the gap value between the tiller fork and the liner mounting surface at another diagonal angle in the same plane is measured, which means that the gap value between the second liner mounting surface and the second tiller mounting surface at another diagonal angle in the same plane is c1, and the gap value between the fifth liner mounting surface and the third tiller mounting surface is c2, and the values ​​of c1 and c2 are measured respectively; In the fifth step, determining the thickness of the adjusting gasket based on the gap value between the tiller handle fork and the lining plate mounting surface at another diagonal angle in the same plane means: determining the thickness of the adjusting gasket based on the measured values ​​of c1 and c2, the thickness of the adjusting gasket between the second lining plate mounting surface and the second tiller handle mounting surface is equal to c1, and the thickness of the adjusting gasket between the fifth lining plate mounting surface and the third tiller handle mounting surface is equal to c2.

[0014] In the fifth step, adjusting the push-rudder mechanism means: pushing the corresponding plunger in the push-rudder mechanism to adjust the position; In the fifth step, the two diagonal tiller forks in the same plane are closely fitted with the mounting surfaces of the corresponding lining plates, and the gap values ​​between the mounting surfaces are equal, which means that the gap value between the diagonal first lining plate mounting surface and the first tiller mounting surface in the same plane is a1, and the gap value between the sixth lining plate mounting surface and the fourth tiller mounting surface is a2, and the first lining plate mounting surface and the first tiller mounting surface, and the sixth lining plate mounting surface and the fourth tiller mounting surface are closely fitted, respectively, and a1 and a2 are equal; In the fifth step, the gap value between the tiller fork and the liner mounting surface at another diagonal angle in the same plane is measured, which means that the gap value between the second liner mounting surface and the second tiller mounting surface at another diagonal angle in the same plane is c1, and the gap value between the fifth liner mounting surface and the third tiller mounting surface is c2, and the values ​​of c1 and c2 are measured respectively; In the fifth step, determining the thickness of the new lining according to the gap value between the tiller handle fork and the lining plate mounting surface at another diagonal angle in the same plane means: determining the thickness of the new lining according to the measured values ​​of c1 and c2, the thickness of the new lining between the second lining plate mounting surface and the second tiller handle mounting surface is the sum of the thickness of the original lining plate after grinding and c1, and the thickness of the new lining between the fifth lining plate mounting surface and the third tiller handle mounting surface is the sum of the thickness of the original lining plate after grinding and c2.

[0015] In the sixth step, the adjustment of the gap between the tiller and the slider to meet the installation requirements means that: the total gap value required for the installation of the tiller and the slider is X; on the same side, the gap value between the left tiller and the lining plate of the upper layer is a, the gap value between the left tiller and the lining plate of the lower layer is b, the gap value between the right tiller and the lining plate of the upper layer is c, and the gap value between the right tiller and the lining plate of the lower layer is d; First push the plunger on that side to adjust the relative position between the tiller and the slider on the same side so that a is equal to b, and c is equal to d; then adjust the gap value between the tiller and the liner in the same plane; When adjusting the gap between the tiller and the liner in the same plane, first adjust the plungers on both sides respectively to make a1 and a2 in the same plane equal, and measure the values ​​of a1 and a2. Then, according to the total gap value X required for the installation of the tiller and the slider, adjust the gap value between the other diagonal tiller fork and the installation surface of the corresponding liner to make c1=c2=X-a1=X-a2; In the sixth step, placing the adjusting gasket between the corresponding slider and the lining plate and then fixing them together means: first placing the processed adjusting gasket between the corresponding slider and the lining plate, and making the mounting surface of the adjusting gasket fit with the mounting surface of the outer side of the slider and the inner side of the lining plate respectively, and then fixing the slider, the adjusting gasket and the lining plate together by countersunk screws.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. A method for repairing a fork-type steering gear, firstly, the four reassembled sliders and lining plates are placed in the middle of the corresponding tiller forks, and the sliders and plungers are fixedly connected by a plunger pin, and then the pushing steering mechanism is adjusted so that the two diagonal tiller forks in the same plane are closely fitted with the mounting surfaces of the corresponding lining plates and the gap values ​​between the mounting surfaces are equal, then the gap value between the other diagonal tiller forks in the same plane and the mounting surface of the lining plates is measured, and then the thickness of the adjustment gasket is determined according to the gap value between the other diagonal tiller forks in the same plane and the mounting surface of the lining plates; when used, the tiller is first adjusted to the zero position of the pushing steering mechanism, and the tiller is fixedly connected with the upper rudder bearing, and then the center of the rudder mechanism is overlapped with the center of the tiller, and then the lining plates and sliders are removed, and the flatness of the mounting surfaces is detected to ensure that the flatness is qualified, and then the sliders and lining plates are reassembled and placed in the middle of the corresponding tiller forks and the plungers. The invention relates to a method for connecting the rudder handle fork and the mounting surface of the liner at the diagonal in the same plane, and then adjusting the plunger so that the rudder handle fork at the diagonal in the same plane is closely fitted with the mounting surface of the liner and the gap value is equal, and then the gap value between the rudder handle fork at the other diagonal in the same plane and the mounting surface of the liner is measured, and an adjustment gasket of corresponding thickness is made according to the gap value, and finally the adjustment gasket is fixedly connected with the slider and placed in the middle of the rudder handle fork, and the gap between the rudder handle and the slider is adjusted to meet the installation requirements, and then the slider is fixedly connected with the plunger pin, and since the rudder handle is fixedly connected with the upper rudder bearing, the position of the rudder handle is avoided from changing during the adjustment process, and the flatness of the mounting surface is detected and the flatness meets the requirements, the rudder handle fork at the diagonal in the same plane is closely fitted with the mounting surface of the liner and the gap value is equal, and then the gap value of the other diagonal is measured to determine the thickness of the adjustment gasket to be made, so that the gap between the rudder handle fork and the slider is qualified. Therefore, the present invention can not only perform maintenance without removing the rudder handle, but also ensure that the gap between the rudder handle fork and the slider is qualified.

[0017] 2. In a method for repairing a fork-type steering gear, the pointer on the pushing steering mechanism is coincided with the zero position of the scale plate by steering, the tooling plate is spot-welded on the tiller handle and the upper rudder bearing respectively, the tiller handle and the upper rudder bearing are fixedly connected, the slider and the lining plate are first removed from the pushing steering mechanism, and then the flatness of each slider, lining plate, and the mounting surface of the tiller handle is detected; when in use, the pointer on the pushing steering mechanism is coincided with the zero position of the scale plate by steering, ensuring that the tiller handle is located at the zero point of the pushing steering mechanism, and then the tooling plate is spot-welded on the tiller handle and the upper rudder bearing respectively, avoiding the change of the position of the tiller handle during the maintenance and adjustment process, detecting the flatness of each slider, lining plate, and the mounting surface of the tiller handle, and reinstalling the slider and lining plate when the flatness is qualified, and reinstalling the mounting surfaces of the tiller handle fork, slider, lining plate and other parts after grinding to a qualified flatness, thereby ensuring that the clearance between the tiller handle fork and the slider is qualified without replacing parts, thereby reducing the maintenance cost. Therefore, the present invention can not only ensure that the gap is qualified, but also reduce the maintenance cost.

[0018] 3. In a method for repairing a fork-type steering gear, in the same side, the gap value between the left side of the upper layer and the lining plate is a, the gap value between the left side of the lower layer and the lining plate is b, the gap value between the right side of the upper layer and the lining plate is c, and the gap value between the right side of the lower layer and the lining plate is d. First, push the plunger on this side to adjust the relative position between the same side of the rudder handle and the slider to make a and b equal, c and d equal, and then adjust the gap value between the rudder handle and the lining plate in the same plane; when used, first adjust the gap between the upper and lower layers of the rudder handle and the lining plate on one side to make the gap value between the upper layer rudder handle and the lining plate on the same side of the same side equal to the corresponding gap value of the lower layer, and then adjust the gap value between the rudder handle and the lining plate in the same plane, so that the gap between each slider and the corresponding rudder handle fork can be quickly and accurately guaranteed to be qualified, so that the maintenance efficiency and accuracy are high. Therefore, the present invention can not only ensure that the gap is qualified, but also improve the maintenance efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of adjusting the clearance of the shift forks in the same plane in the present invention.

[0020] Figure 2 It is a schematic diagram of the composition of the rudder system in the present invention.

[0021] Figure 3 It is a schematic diagram of the fork-type steering mechanism in the present invention.

[0022] Figure 4 It is a schematic diagram of the correct installation of the tiller in the present invention.

[0023] Figure 5 yes Figure 4 Detailed view of point A in the middle.

[0024] Figure 6 It is a structural schematic diagram of the tiller in the present invention.

[0025] Figure 7 It is a schematic diagram of the assembly of the fork-type push-rudder mechanism.

[0026] Figure 8 It is a schematic diagram of adjusting the clearance of a single-side shift fork in the present invention.

[0027] Fig. 9 It is a structural schematic diagram of a single shift fork in the present invention.

[0028] Fig.10 It is a schematic diagram of the installation surface in the present invention.

[0029] In the figure: a steering mechanism 1, a steering mechanism center 101, a cylinder reference point 102, an installation reference line 103, a tiller 11, a first tiller installation surface 111, a second tiller installation surface 112, a third tiller installation surface 113, a fourth tiller installation surface 114, an upper rudder surface 115, a lower rudder surface 116, a slider 12, a first slider installation surface 121, a second slider installation surface 122, a third slider installation surface 123, and a fourth slider installation surface 124 , lining 13, first lining mounting surface 131, second lining mounting surface 132, third lining mounting surface 133, fourth lining mounting surface 134, fifth lining mounting surface 135, sixth lining mounting surface 136, seventh lining mounting surface 137, eighth lining mounting surface 138, plunger 14, plunger pin 15, pointer 16, scale plate 17, tiller handle fork 18, roller 19, upper rudder bearing 2, rudder bar 3, lower rudder bearing 4, rudder blade 5, cylinder 6. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] See also Figure 1 — Fig.10 , a slewing fork type steering gear maintenance method, the slewing fork type steering gear maintenance method comprising the following steps: Step 1: first adjust the tiller handle 11 to the zero position of the rudder pushing mechanism 1, and then fix the tiller handle 11 to the upper rudder bearing 2; Step 2: first measure the distance values ​​from the four oil cylinder reference points 102 to the center of the tiller handle 11. When the distance values ​​from the four oil cylinder reference points 102 to the center of the tiller handle 11 are equal, the center 101 of the pushing steering mechanism coincides with the center of the tiller handle 11, and proceed to step 3; when the distance values ​​from the four oil cylinder reference points 102 to the center of the tiller handle 11 are not equal, readjust the pushing steering mechanism 1 until the center 101 of the pushing steering mechanism coincides with the center of the tiller handle 11, stop adjusting the pushing steering mechanism 1, and proceed to step 3; Step 3: first remove the slider 12 and the lining plate 13 from the push-rudder mechanism 1, and then check the flatness of the mounting surface of each slider 12, lining plate 13, and tiller handle 11. When the flatness meets the installation requirements, proceed to step 4; when the flatness does not meet the installation requirements, first grind the mounting surface of the parts until the flatness of the mounting surface of the slider 12, lining plate 13, and tiller handle 11 meets the installation requirements, stop grinding, and then proceed to step 4; Step 4: First, reassemble the slider 12 and the liner 13 with qualified flatness; Step 5: firstly place the four reassembled sliders 12 and lining plates 13 in the middle of the corresponding tiller forks 18, and fix the sliders 12 and the plunger 14 through the plunger pin 15, and then adjust the rudder pushing mechanism 1 so that the two diagonal tiller forks 18 in the same plane are closely fitted with the mounting surfaces of the corresponding lining plates 13 and the gap values ​​between the mounting surfaces are equal, and then measure the gap value between the other diagonal tiller forks 18 in the same plane and the mounting surfaces of the lining plates 13; then determine the thickness of the adjustment gasket according to the gap value between the other diagonal tiller forks 18 in the same plane and the mounting surfaces of the lining plates 13, and then process the adjustment gasket of the corresponding thickness; Step 6: First remove the above-mentioned slider 12 and liner 13 from the plunger 14, place the adjusting gasket between the corresponding slider 12 and liner 13, and then fix them together, then place the slider 12, adjusting gasket and liner 13 fixed as one in the middle of the corresponding tiller fork 18, and finally adjust the gap between the tiller 11 and the slider 12 to meet the installation requirements, and then fix the slider 12 and the plunger 14 together through the plunger pin 15.

[0032] In the third step, the mounting surfaces of the slider 12, the lining plate 13 and the tiller handle 11 refer to: the planes where the slider 12, the lining plate 13 and the tiller handle 11 are in contact with each other; the mounting surfaces of the tiller handle 11 in the same plane are respectively the first tiller handle mounting surface 111, the second tiller handle mounting surface 112, the third tiller handle mounting surface 113 and the fourth tiller handle mounting surface 114; the mounting surfaces of the slider 12 in the same plane are respectively the first slider mounting surface 121, the second slider mounting surface 122, the third slider mounting surface 123 and the fourth slider mounting surface 124; the mounting surfaces of the lining plate 13 in the same plane are respectively the first lining plate mounting surface 131, the second lining plate mounting surface 132, the third lining plate mounting surface 133, the fourth lining plate mounting surface 134, the fifth lining plate mounting surface 135, the sixth lining plate mounting surface 136, the seventh lining plate mounting surface 137 and the eighth lining plate mounting surface 138.

[0033] In the fifth step, the step of determining the thickness of the adjustment gasket according to the gap value between the tiller fork 18 and the mounting surface of the liner 13 at another diagonal angle in the same plane, and then processing the adjustment gasket of corresponding thickness means: determining the thickness of the new liner according to the gap value between the tiller fork 18 and the mounting surface of the liner 13 at another diagonal angle in the same plane, and then processing the new liner of corresponding thickness; In the sixth step, the above-mentioned slider 12 and liner 13 are first removed from the plunger 14, the adjustment gasket is placed between the corresponding slider 12 and liner 13, and then fixedly connected, and then the slider 12, adjustment gasket and liner 13 fixed as one are placed in the middle of the corresponding tiller fork 18, and finally the gap between the tiller 11 and the slider 12 is adjusted to meet the installation requirements, and the slider 12 and the plunger 14 are fixedly connected by the plunger pin 15. It means: first remove the above-mentioned slider 12 and liner 13 from the plunger 14, place the new liner on the outside of the installation surface of the corresponding slider 12, and fit it with the installation surface on the outside of the slider 12, and then fix the new liner to the slider 12 by countersunk screws, and then place the slider 12 and the new liner fixed as one in the middle of the corresponding tiller fork 18, and finally adjust the gap between the tiller 11 and the slider 12 to meet the installation requirements, and then fix the slider 12 and the plunger 14 by the plunger pin 15.

[0034] In the first step, the tiller handle 11 is adjusted to the zero position of the push-steering mechanism 1, which means that the pointer 16 on the push-steering mechanism 1 is made to coincide with the zero position of the scale plate 17 by steering; In the first step, the tiller handle 11 and the upper rudder bearing 2 are then fixedly connected, which means: the tooling plate is spot welded on the tiller handle 11 and the upper rudder bearing 2 respectively, so as to fix the tiller handle 11 and the upper rudder bearing 2.

[0035] In the second step, first measuring the distance values ​​from the four oil cylinder reference points 102 to the center of the tiller handle 11 means: using a diagonal measuring tool to test the distance value from each oil cylinder reference point 102 to the center of the tiller handle 11 respectively, and obtaining the distance values ​​from the four oil cylinder reference points 102 to the center of the tiller handle 11 are L1, L2, L3, and L4 respectively; In the second step, when the distance values ​​from the four oil cylinder reference points 102 to the center of the tiller handle 11 are equal, it means that when the absolute value of the difference between any two distance values ​​L1, L2, L3, L4 from the four oil cylinder reference points 102 to the center of the tiller handle 11 is 0-0.5 mm, the center 101 of the pushing steering mechanism coincides with the center of the tiller handle 11; In the second step, the readjustment of the steering push mechanism 1 means: firstly removing the plunger pin 15, and then pushing the corresponding plunger 14 in the steering push mechanism 1 to adjust the relative positions of the four cylinder reference points 102 and the steering push mechanism center 101.

[0036] In the third step, the flatness of the mounting surface of each slider 12, lining plate 13, and tiller handle 11 is detected by first applying indigo pigment to the mounting surface of each slider 12, lining plate 13, and tiller handle 11, respectively, and then fitting a measuring plate with the mounting surface coated with indigo pigment, respectively, and then observing the distribution of indigo pigment on the measuring plate; if the indigo pigment on the measuring plate is evenly distributed, the flatness meets the requirement, and if the indigo pigment on the measuring plate is unevenly distributed, the flatness does not meet the requirement.

[0037] In the fourth step, the first reinstalling the slider 12 and the liner 13 with qualified flatness means: first, the liner 13 on one side in the same plane is placed on the outside of the corresponding slider 12, and the third liner mounting surface 133 is respectively fitted with the first slider mounting surface 121, and the fourth liner mounting surface 134 is respectively fitted with the second slider mounting surface 122, and then the slider 12 and the liner 13 are fixedly connected by countersunk screws; then, the liner 13 on the other side in the same plane is placed on the outside of the corresponding slider 12, and the seventh liner mounting surface 137 is respectively fitted with the third slider mounting surface 123, and the eighth liner mounting surface 138 is respectively fitted with the fourth slider mounting surface 124, and then the slider 12 and the liner 13 are fixedly connected by countersunk screws.

[0038] In the fifth step, the step of adjusting the push-steering mechanism 1 means: pushing the corresponding plunger 14 in the push-steering mechanism 1 to adjust the position; In the fifth step, the two diagonal tiller forks 18 in the same plane are closely fitted with the mounting surfaces of the corresponding lining plates 13 and the gap values ​​between the mounting surfaces are equal, which means that the gap value between the diagonal first lining plate mounting surface 131 and the first tiller mounting surface 111 in the same plane is a1, and the gap value between the sixth lining plate mounting surface 136 and the fourth tiller mounting surface 114 is a2, and the first lining plate mounting surface 131 and the first tiller mounting surface 111, and the sixth lining plate mounting surface 136 and the fourth tiller mounting surface 114 are closely fitted, respectively, and a1 and a2 are equal; In the fifth step, the gap value between the tiller fork 18 and the mounting surface of the liner 13 at another diagonal angle in the same plane is measured, which means that the gap value between the second liner mounting surface 132 and the second tiller mounting surface 112 at another diagonal angle in the same plane is c1, and the gap value between the fifth liner mounting surface 135 and the third tiller mounting surface 113 is c2, and the values ​​of c1 and c2 are measured respectively; In the fifth step, determining the thickness of the adjusting gasket based on the gap value between the tiller handle fork 18 and the mounting surface of the lining plate 13 at another diagonal angle in the same plane means: determining the thickness of the adjusting gasket based on the measured values ​​of c1 and c2, the thickness of the adjusting gasket between the second lining plate mounting surface 132 and the second tiller handle mounting surface 112 is equal to c1, and the thickness of the adjusting gasket between the fifth lining plate mounting surface 135 and the third tiller handle mounting surface 113 is equal to c2.

[0039] In the fifth step, the step of adjusting the push-steering mechanism 1 means: pushing the corresponding plunger 14 in the push-steering mechanism 1 to adjust the position; In the fifth step, the two diagonal tiller forks 18 in the same plane are closely fitted with the mounting surfaces of the corresponding lining plates 13 and the gap values ​​between the mounting surfaces are equal, which means that the gap value between the diagonal first lining plate mounting surface 131 and the first tiller mounting surface 111 in the same plane is a1, and the gap value between the sixth lining plate mounting surface 136 and the fourth tiller mounting surface 114 is a2, and the first lining plate mounting surface 131 and the first tiller mounting surface 111, and the sixth lining plate mounting surface 136 and the fourth tiller mounting surface 114 are closely fitted, respectively, and a1 and a2 are equal; In the fifth step, the gap value between the tiller fork 18 and the mounting surface of the liner 13 at another diagonal angle in the same plane is measured, which means that the gap value between the second liner mounting surface 132 and the second tiller mounting surface 112 at another diagonal angle in the same plane is c1, and the gap value between the fifth liner mounting surface 135 and the third tiller mounting surface 113 is c2, and the values ​​of c1 and c2 are measured respectively; In the fifth step, determining the thickness of the new lining according to the gap value between the tiller handle fork 18 and the lining plate 13 mounting surface at another diagonal angle in the same plane means: determining the thickness of the new lining according to the measured values ​​of c1 and c2, the thickness of the new lining between the second lining plate mounting surface 132 and the second tiller handle mounting surface 112 is the sum of the thickness of the original lining plate 13 after grinding and c1, and the thickness of the new lining between the fifth lining plate mounting surface 135 and the third tiller handle mounting surface 113 is the sum of the thickness of the original lining plate 13 after grinding and c2.

[0040] In the sixth step, the adjustment of the gap between the tiller 11 and the slider 12 to meet the installation requirements means that: the total gap value required for the installation of the tiller 11 and the slider 12 is X; on the same side, the gap value between the left tiller 11 on the upper layer and the lining plate 13 is a, the gap value between the left tiller 11 on the lower layer and the lining plate 13 is b, the gap value between the right tiller 11 on the upper layer and the lining plate 13 is c, and the gap value between the right tiller 11 on the lower layer and the lining plate 13 is d; First push the plunger 14 on that side to adjust the relative position between the tiller 11 and the slider 12 on the same side so that a is equal to b, and c is equal to d; then adjust the gap value between the tiller 11 and the lining plate 13 in the same plane; When adjusting the gap value between the tiller handle 11 and the lining plate 13 in the same plane, first adjust the plungers 14 on both sides respectively to make a1 and a2 in the same plane equal, and measure the values ​​of a1 and a2. Then, according to the total gap value X required for the installation of the tiller handle 11 and the slider 12, adjust the gap value between the other diagonal tiller handle fork 18 and the installation surface of the corresponding lining plate 13 to make c1=c2=X-a1=X-a2; In the sixth step, placing the adjusting gasket between the corresponding slider 12 and the lining plate 13 and then fixing the connection means: first placing the processed adjusting gasket between the corresponding slider 12 and the lining plate 13, and making the mounting surface of the adjusting gasket fit with the mounting surface of the outer side of the slider 12 and the inner side of the lining plate 13 respectively, and then fixing the slider 12, the adjusting gasket and the lining plate 13 by countersunk screws.

[0041] The supplementary description of the present invention is as follows: The preferred lining plate 13 of the present invention is used to adjust the gap between the tiller handle 11 and the slider 12 .

[0042] In the present invention, preferably, there is a clearance fit between the slider 12 and the tiller handle 11 .

[0043] The flatness installation requirement of the preferred installation surface of the present invention is that the flatness is ≤0.02 mm.

[0044] The present invention preferably spot welds the tooling plate to the tiller 11 and the upper rudder bearing 2 respectively because: spot welding can fix the tiller 11 and the upper rudder bearing 2 to ensure that the position of the tiller 11 does not change during the adjustment process, and it is also convenient to remove the tooling plate after maintenance.

[0045] The present invention preferably makes the first lining plate mounting surface 131 and the first tiller handle mounting surface 111, as well as the sixth lining plate mounting surface 136 and the fourth tiller handle mounting surface 114 tightly fitted respectively, and making a1 and a2 equal means that the first lining plate mounting surface 131 and the first tiller handle mounting surface 111, as well as the sixth lining plate mounting surface 136 and the fourth tiller handle mounting surface 114 are tightly fitted to each other, so that a1=a2=0.

[0046] The present invention preferably provides that the maintenance and adjustment method of the lining plate 13 and the tiller handle fork 18 in the same plane of the lower layer is consistent with the adjustment method of the first lining plate mounting surface 131 and the first tiller handle mounting surface 111, the sixth lining plate mounting surface 136 and the fourth tiller handle mounting surface 114 at the opposite diagonals in the same plane of the upper layer, and the second lining plate mounting surface 132 and the second tiller handle mounting surface 112, and the fifth lining plate mounting surface 135 and the third tiller handle mounting surface 113 at the other opposite diagonals.

[0047] In the preferred embodiment of the present invention, on the same side, the gap value between the tiller 11 on the left side of the upper tiller 115 and the lining plate 13 is a, the gap value between the tiller 11 on the left side of the lower tiller 116 and the lining plate 13 is b, the gap value between the tiller 11 on the right side of the upper tiller 115 and the lining plate 13 is c, and the gap value between the tiller 11 on the right side of the lower tiller 116 and the lining plate 13 is d. First, push the plunger 14 on this side to adjust the relative position between the tiller 11 and the slider 12 on the same side so that a is equal to b, and c is equal to d. The maintenance and adjustment method of the tiller 11 and the slider 12 on the other side is consistent with that on this side.

[0048] Embodiment 1: See also Figure 1 — Fig.10 , a slewing fork type steering gear maintenance method, the slewing fork type steering gear maintenance method comprising the following steps: Step 1: first adjust the tiller handle 11 to the zero position of the rudder pushing mechanism 1, and then fix the tiller handle 11 to the upper rudder bearing 2; Step 2: first measure the distance values ​​from the four oil cylinder reference points 102 to the center of the tiller handle 11. When the distance values ​​from the four oil cylinder reference points 102 to the center of the tiller handle 11 are equal, the center 101 of the pushing steering mechanism coincides with the center of the tiller handle 11, and proceed to step 3; when the distance values ​​from the four oil cylinder reference points 102 to the center of the tiller handle 11 are not equal, readjust the pushing steering mechanism 1 until the center 101 of the pushing steering mechanism coincides with the center of the tiller handle 11, stop adjusting the pushing steering mechanism 1, and proceed to step 3; Step 3: first remove the slider 12 and the lining plate 13 from the push-rudder mechanism 1, and then check the flatness of the mounting surface of each slider 12, lining plate 13, and tiller handle 11. When the flatness meets the installation requirements, proceed to step 4; when the flatness does not meet the installation requirements, first grind the mounting surface of the parts until the flatness of the mounting surface of the slider 12, lining plate 13, and tiller handle 11 meets the installation requirements, stop grinding, and then proceed to step 4; Step 4: First, reassemble the slider 12 and the liner 13 with qualified flatness; Step 5: firstly place the four reassembled sliders 12 and lining plates 13 in the middle of the corresponding tiller forks 18, and fix the sliders 12 and the plunger 14 through the plunger pin 15, and then adjust the rudder pushing mechanism 1 so that the two diagonal tiller forks 18 in the same plane are closely fitted with the mounting surfaces of the corresponding lining plates 13 and the gap values ​​between the mounting surfaces are equal, and then measure the gap value between the other diagonal tiller forks 18 in the same plane and the mounting surfaces of the lining plates 13; then determine the thickness of the adjustment gasket according to the gap value between the other diagonal tiller forks 18 in the same plane and the mounting surfaces of the lining plates 13, and then process the adjustment gasket of the corresponding thickness; Step 6: First remove the above-mentioned slider 12 and liner 13 from the plunger 14, place the adjusting gasket between the corresponding slider 12 and liner 13, and then fix them together, then place the slider 12, adjusting gasket and liner 13 fixed as one in the middle of the corresponding tiller fork 18, and finally adjust the gap between the tiller 11 and the slider 12 to meet the installation requirements, and then fix the slider 12 and the plunger 14 together through the plunger pin 15.

[0049] Embodiment 2: The basic content is the same as that of Example 1, except that: in the fifth step, the thickness of the adjustment gasket is determined according to the gap value between the other diagonal tiller fork 18 and the mounting surface of the liner 13 in the same plane, and then the adjustment gasket of the corresponding thickness is processed, which means: the thickness of the new liner is determined according to the gap value between the other diagonal tiller fork 18 and the mounting surface of the liner 13 in the same plane, and then the new liner of the corresponding thickness is processed; in the sixth step, the slider 12 and the liner 13 are first removed from the plunger 14, the adjustment gasket is placed between the corresponding slider 12 and the liner 13, and then fixedly connected, and then the slider 12, the adjustment gasket and the liner 13 fixed as one are fixed. Place it in the middle of the corresponding tiller handle fork 18, and finally adjust the gap between the tiller handle 11 and the slider 12 to meet the installation requirements, and then fix the slider 12 and the plunger 14 with the plunger pin 15. This means: first remove the above-mentioned slider 12 and lining plate 13 from the plunger 14, place the new lining plate on the outside of the installation surface of the corresponding slider 12, and fit it with the installation surface on the outside of the slider 12, and then fix the new lining plate and the slider 12 with countersunk screws, and then place the slider 12 and the new lining plate fixed as one in the middle of the corresponding tiller handle fork 18, and finally adjust the gap between the tiller handle 11 and the slider 12 to meet the installation requirements, and then fix the slider 12 and the plunger 14 with the plunger pin 15.

[0050] When in use, not only can an adjusting gasket of suitable thickness be processed to repair the gap between the tiller handle 11 and the slider 12, but a new lining plate can also be processed to replace the original lining plate 13, so that one side of the new lining plate is fixedly connected to the outer mounting surface of the corresponding slider 12, and then placed in the corresponding tiller handle fork 18, and then the gap between the tiller handle 11 and the slider 12 is adjusted to meet the installation requirements, and the slider 12 and the plunger 14 are fixedly connected through the plunger pin 15.

[0051] Embodiment 3: The basic content is the same as that of Example 1, except that: in the first step, first adjusting the tiller handle 11 to the zero position of the pushing steering mechanism 1 means: steering to make the pointer 16 on the pushing steering mechanism 1 coincide with the zero position of the scale plate 17; in the first step, then fixing the tiller handle 11 and the upper rudder bearing 2 together means: spot welding the tooling plate to the tiller handle 11 and the upper rudder bearing 2 respectively, and fixing the tiller handle 11 and the upper rudder bearing 2 together.

[0052] When in use, firstly, the pointer 16 on the pushing steering mechanism 1 is made to coincide with the zero position of the scale plate 17 by steering, so that the tiller handle 11 is adjusted to the zero position of the pushing steering mechanism 1, and then the tooling plate is used to spot weld the tiller handle 11 and the upper rudder bearing 2 respectively, so that the tiller handle 11 and the upper rudder bearing 2 are fixedly connected, thereby avoiding the change of the position of the tiller handle 11 during the subsequent maintenance and adjustment process, thereby avoiding the complication of maintenance; at the same time, the spot welding method is also convenient for removing the tooling plate after the maintenance is completed.

[0053] Embodiment 4: The basic content is the same as that of Example 1, except that: in the second step, the first measuring of the distance values ​​from the four cylinder reference points 102 to the center of the tiller handle 11 means: using a diagonal measuring tool to test the distance value from each cylinder reference point 102 to the center of the tiller handle 11 respectively, and obtaining the distance values ​​from the four cylinder reference points 102 to the center of the tiller handle 11 as L1, L2, L3, and L4 respectively; in the second step, when the distance values ​​from the four cylinder reference points 102 to the center of the tiller handle 11 are equal means: when the absolute value of the difference between any two of the distance values ​​L1, L2, L3, and L4 from the four cylinder reference points 102 to the center of the tiller handle 11 is 0-0.5 mm, the center 101 of the pushing steering mechanism coincides with the center of the tiller handle 11; in the second step, re-adjusting the pushing steering mechanism 1 means: first removing the plunger pin 15, and then pushing the corresponding plunger 14 in the pushing steering mechanism 1 to adjust the relative positions of the four cylinder reference points 102 and the center 101 of the pushing steering mechanism.

[0054] When in use, first measure the distance values ​​L1, L2, L3, L4 from the four cylinder reference points 102 to the center of the tiller handle 11. When the absolute value of the difference between any two distance values ​​of L1, L2, L3, L4 is 0-0.5mm, the center 101 of the pushing steering mechanism coincides with the center of the tiller handle 11. When L1, L2, L3, L4 do not meet the absolute value of the difference between any two distance values ​​of 0-0.5mm, it is necessary to continue to adjust the corresponding plunger 14, thereby adjusting the relative positions of the four cylinder reference points 102 and the center 101 of the pushing steering mechanism, so that the center 101 of the pushing steering mechanism coincides with the center of the tiller handle 11, which is convenient for subsequent repair and reduces maintenance time and cost.

[0055] Embodiment 5: The basic content is the same as that of Example 1, except that: in the third step, the flatness of the mounting surface of each slider 12, lining plate 13, and tiller handle 11 is detected by first applying indigo pigment to the mounting surfaces of each slider 12, lining plate 13, and tiller handle 11, respectively, and then a measuring plate is respectively fitted to the mounting surfaces coated with indigo pigment, and then the distribution of indigo pigment on the measuring plate is observed; if the indigo pigment on the measuring plate is evenly distributed, the flatness meets the requirements; if the indigo pigment on the measuring plate is unevenly distributed, the flatness does not meet the requirements.

[0056] When using, first apply blue pigment to the installation surface of each slider 12, lining plate 13, and tiller handle 11 respectively, then use a measuring plate to fit the installation surface coated with blue pigment respectively, and then observe the distribution of blue pigment on the measuring plate; if the blue pigment on the measuring plate is evenly distributed, the flatness meets the requirement; if the blue pigment on the measuring plate is unevenly distributed, the flatness does not meet the requirement, and the installation surface needs to be polished until the flatness meets the requirement. If the flatness of the installation surface meets the requirement, the subsequent installation and mechanical operation process will have better accuracy; and the method of measuring flatness by applying blue pigment is simple and quick to operate, and is also suitable for use in ship maintenance.

[0057] Embodiment 6: The basic content is the same as that of Example 1, except that: in the fifth step, the step of then adjusting the pushing steering mechanism 1 means: pushing the corresponding plunger 14 in the pushing steering mechanism 1 to adjust the position; in the fifth step, the step of making the two diagonal tiller forks 18 in the same plane closely fit with the mounting surfaces of the corresponding lining plates 13 and the gap values ​​between the mounting surfaces are equal means: the gap value between the diagonal first lining plate mounting surface 131 and the first tiller mounting surface 111 in the same plane is a1, and the gap value between the sixth lining plate mounting surface 136 and the fourth tiller mounting surface 114 is a2, respectively, closely fit the first lining plate mounting surface 131 and the first tiller mounting surface 111, and the sixth lining plate mounting surface 136 and the fourth tiller mounting surface 114, and make a1 and a2 equal; in the fifth step, the step of then measuring the gap value in the same plane The gap value between the tiller handle fork 18 at another diagonal angle and the mounting surface of the lining plate 13 refers to: the gap value between the second lining plate mounting surface 132 at another diagonal angle in the same plane and the second tiller handle mounting surface 112 is c1, and the gap value between the fifth lining plate mounting surface 135 and the third tiller handle mounting surface 113 is c2, and the values ​​of c1 and c2 are measured respectively; in the fifth step, the thickness of the adjusting gasket is determined according to the gap value between the tiller handle fork 18 at another diagonal angle in the same plane and the mounting surface of the lining plate 13, which means: the thickness of the adjusting gasket is determined according to the measured values ​​of c1 and c2, and the thickness of the adjusting gasket between the second lining plate mounting surface 132 and the second tiller handle mounting surface 112 is equal to c1, and the thickness of the adjusting gasket between the fifth lining plate mounting surface 135 and the third tiller handle mounting surface 113 is equal to c2.

[0058] When applying, first adjust a1 and a2 to be equal and infinitely close to zero, which can ensure that there is no gap between the diagonal mounting surfaces in the same plane. At this time, measure the gap values ​​c1 and c2 of the other diagonal corners, which are the thicknesses of the corresponding adjustment lining plates that need to be processed. The adjustment lining plates made according to the actual gap values ​​can make the gap between the slider 12 and the tiller handle fork 18 more accurate and more appropriate.

[0059] Embodiment 7: The basic content is the same as Example 6, except that: in the fifth step, determining the thickness of the new lining according to the gap value between the tiller handle fork 18 and the lining plate 13 mounting surface at another diagonal angle in the same plane means: determining the thickness of the new lining according to the measured values ​​of c1 and c2, the thickness of the new lining between the second lining plate mounting surface 132 and the second tiller handle mounting surface 112 is the sum of the thickness of the original lining plate 13 after grinding and c1, and the thickness of the new lining between the fifth lining plate mounting surface 135 and the third tiller handle mounting surface 113 is the sum of the thickness of the original lining plate 13 after grinding and c2.

[0060] When applying, first adjust a1 and a2 to be equal and infinitely close to zero, which can ensure that there is no gap between the diagonal installation surfaces in the same plane. At this time, measure the gap values ​​c1 and c2 of the other diagonal corners. The sum of the thickness of the lining plate after grinding in the third step and the corresponding c1 and c2 is the thickness of the corresponding new lining plate that needs to be processed. The new lining plate made according to the actual gap value can make the gap between the slider 12 and the tiller handle fork 18 more accurate and more appropriate.

[0061] Embodiment 8: The basic content is the same as that of Example 1, except that: in the sixth step, the adjustment of the gap between the tiller handle 11 and the slider 12 to meet the installation requirements means that the total gap value required for the installation of the tiller handle 11 and the slider 12 is X; on the same side, the gap value between the tiller handle 11 on the left side of the upper layer and the lining plate 13 is a, the gap value between the tiller handle 11 on the left side of the lower layer and the lining plate 13 is b, the gap value between the tiller handle 11 on the right side of the upper layer and the lining plate 13 is c, and the gap value between the tiller handle 11 on the right side of the lower layer and the lining plate 13 is d; first push the plunger 14 on this side to adjust the relative position between the tiller handle 11 and the slider 12 on the same side so that a and b are equal, and c and d are equal; then adjust the gap value between the tiller handle 11 and the lining plate 13 in the same plane; adjust the gap value between the tiller handle 11 and the lining plate 13 in the same plane When adjusting the gap value between the lining plates 13, first adjust the plungers 14 on both sides respectively so that a1 and a2 in the same plane are equal, and measure the values ​​of a1 and a2, and then adjust the gap value between the other diagonal rudder handle fork 18 and the mounting surface of the corresponding lining plate 13 according to the total gap value X required for the installation of the rudder handle 11 and the slider 12, so that c1=c2=X-a1=X-a2; in the sixth step, the adjusting gasket is placed between the corresponding slider 12 and the lining plate 13, and then fixedly connected, which means: first place the processed adjusting gasket between the corresponding slider 12 and the lining plate 13, and make the mounting surface of the adjusting gasket fit with the mounting surface of the outer side of the slider 12 and the inner side of the lining plate 13 respectively, and then fix the slider 12, the adjusting gasket and the lining plate 13 by countersunk screws.

[0062] When in use, first place the adjustment lining plate between the outer side of the slider 12 and the inner side of the lining plate 13, fix the three together by countersunk screws, and then place it in the corresponding tiller fork 18, adjust the gap between the upper and lower tiller 11 and the lining plate 13 on the same side, so that the gap value between the upper tiller 11 and the lining plate 13 on the same side is equal to the corresponding gap value of the lower layer, and use the same adjustment method for the adjustment of the other side; then adjust the gap value between the diagonal tiller 11 and the lining plate 13 in the same plane, so that the gap values ​​a1 and a2 are equal, and then adjust the gap values ​​c1 and c2 between the other diagonal tiller 11 and the lining plate 13 in the same plane according to the total gap value X required for installation, so that c1=c2=X-a1=X-a2, and then fix the slider 12 and the plunger 14 by the plunger pin 15, so that the gap between each slider 12 and the corresponding tiller fork 15 can be quickly and accurately guaranteed to be qualified, so that the maintenance efficiency is high and the accuracy is high.

[0063] Embodiment 9: The basic content is the same as that of Example 8, except that: when the total gap value X required for the installation of the tiller handle 11 and the slider 12 is 0.2mm, while ensuring that the gaps between the upper and lower tiller handles 11 and the slider 12 on the same side are consistent, the gap values ​​between the diagonal tiller handles 11 and the slider 12 in the same plane are adjusted based on the diagonal plane, so that the first lining plate mounting surface 131 and the first tiller handle mounting surface 111, and the sixth lining plate mounting surface 136 and the fourth tiller handle mounting surface 114 are tightly fitted, and a1=a2≤0.05mm, and then the other diagonal gap value c1=c2≤0.15mm is adjusted, and the adjustment method of the slider 12 in the lower rudder surface 116 is the same.

[0064] Embodiment 10: The basic content is the same as that of Embodiment 1, except that: the assembly relationship of the sled servo is not limited to the type in which the slider 12, the lining plate 13 and the tiller 11 are in plane contact. When the sled servo is in the type in which the roller 19, the lining plate 13 and the tiller 11 are in line contact, the mechanism movement principle is the same, and the present invention is also applicable to the maintenance of the gap between the roller 19 and the tiller fork 18 in the type in which the roller 19, the lining plate 13 and the tiller 11 are in line contact.

[0065] Embodiment 11: The method for repairing the gap between the two tiller forks 18 and the slider 12 in the upper rudder surface 115 of the tiller is the same as that in Example 1, and the method for repairing the gap between the two tiller forks 18 and the slider 12 in the lower rudder surface 116 is also the same as that in Example 1.

[0066] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A method for repairing a sled type steering gear, characterized in that: The fork type steering gear maintenance method comprises the following steps: The first step is to adjust the tiller handle (11) to the zero position of the rudder push mechanism (1), and then fix the tiller handle (11) and the upper rudder bearing (2) together; Step 2: first measure the distance values ​​from the four oil cylinder reference points (102) to the center of the tiller handle (11); when the distance values ​​from the four oil cylinder reference points (102) to the center of the tiller handle (11) are equal, the center of the push-steering mechanism (101) coincides with the center of the tiller handle (11), and proceed to Step 3; when the distance values ​​from the four oil cylinder reference points (102) to the center of the tiller handle (11) are not equal, readjust the push-steering mechanism (1) until the center of the push-steering mechanism (101) coincides with the center of the tiller handle (11), stop adjusting the push-steering mechanism (1), and proceed to Step 3; Step 3: first remove the slider (12) and the lining plate (13) from the push-rudder mechanism (1), then check the flatness of the mounting surface of each slider (12), lining plate (13), and tiller handle (11). When the flatness meets the installation requirements, proceed to Step 4. When the flatness does not meet the installation requirements, first grind the mounting surfaces of the parts until the flatness of the mounting surfaces of the slider (12), lining plate (13), and tiller handle (11) meets the installation requirements, then stop grinding and proceed to Step 4. Step 4: First, reassemble the sliding block (12) and the lining plate (13) with qualified flatness; Step 5: firstly, the four reassembled sliders (12) and lining plates (13) are placed in the middle of the corresponding tiller forks (18), and the sliders (12) and the plungers (14) are fixedly connected by the plunger pins (15), and then the rudder pushing mechanism (1) is adjusted so that the two diagonal tiller forks (18) in the same plane are closely fitted with the mounting surfaces of the corresponding lining plates (13) and the gap values ​​between the mounting surfaces are equal, and then the gap value between the other diagonal tiller forks (18) in the same plane and the mounting surfaces of the lining plates (13) is measured; then, according to the gap value between the other diagonal tiller forks (18) in the same plane and the mounting surfaces of the lining plates (13), the thickness of the adjustment gasket is determined, and then the adjustment gasket of the corresponding thickness is processed; Step 6: First, remove the above-mentioned slider (12) and lining plate (13) from the plunger (14), place the adjustment gasket between the corresponding slider (12) and lining plate (13), and then fix them together. Then, place the slider (12), adjustment gasket and lining plate (13) fixed as one in the middle of the corresponding tiller fork (18), and finally adjust the gap between the tiller (11) and the slider (12) to meet the installation requirements, and then fix the slider (12) and the plunger (14) together through the plunger pin (15).

2. A method for repairing a scotch yoke steering gear according to claim 1, characterized in that: In the third step, the mounting surfaces of the slider (12), the lining plate (13) and the tiller (11) refer to planes where the slider (12), the lining plate (13) and the tiller (11) are in contact with each other; the mounting surfaces of the tiller (11) in the same plane are respectively the first tiller mounting surface (111), the second tiller mounting surface (112), the third tiller mounting surface (113) and the fourth tiller mounting surface (114); the mounting surfaces of the slider (12) in the same plane are respectively the first slider mounting surface (121), the second slider mounting surface (122), the third slider mounting surface (123) and the fourth slider mounting surface (124); and the mounting surfaces of the lining plate (13) in the same plane are respectively the first lining plate mounting surface (131), the second lining plate mounting surface (132), the third lining plate mounting surface (133), the fourth lining plate mounting surface (134), the fifth lining plate mounting surface (135), the sixth lining plate mounting surface (136), the seventh lining plate mounting surface (137) and the eighth lining plate mounting surface (138).

3. A method for repairing a scotch yoke steering gear according to claim 2, characterized in that: In the fifth step, the step of determining the thickness of the adjustment gasket according to the gap value between the tiller fork (18) and the mounting surface of the liner (13) at another diagonal angle in the same plane, and then processing the adjustment gasket of corresponding thickness means: determining the thickness of the new liner according to the gap value between the tiller fork (18) and the mounting surface of the liner (13) at another diagonal angle in the same plane, and then processing the new liner of corresponding thickness; In the sixth step, the above-mentioned slider (12) and lining plate (13) are first removed from the plunger (14), and the adjustment gasket is placed between the corresponding slider (12) and lining plate (13), and then fixedly connected, and then the slider (12), the adjustment gasket and the lining plate (13) fixed as a whole are placed in the middle of the corresponding tiller fork (18), and finally the gap between the tiller (11) and the slider (12) is adjusted to meet the installation requirements, and the slider (12) and the plunger (14) are fixedly connected by the plunger pin (15). The block (12) and the lining plate (13) are removed from the plunger (14), and a new lining plate is placed on the outside of the mounting surface of the corresponding slider (12) and fits with the mounting surface on the outside of the slider (12). Then, the new lining plate and the slider (12) are fixedly connected by countersunk screws. Then, the slider (12) and the new lining plate fixed as one are placed in the middle of the corresponding tiller fork (18). Finally, after adjusting the gap between the tiller (11) and the slider (12) to meet the installation requirements, the slider (12) and the plunger (14) are fixedly connected by the plunger pin (15).

4. A method for repairing a scotch yoke steering gear according to claim 1 or 3, characterized in that: In the first step, the tiller handle (11) is adjusted to the zero position of the push-steering mechanism (1) by steering so that the pointer (16) on the push-steering mechanism (1) coincides with the zero position of the scale plate (17); In the first step, the step of then fixing the tiller handle (11) and the upper rudder bearing (2) in fixed connection means: spot welding the tooling plate to the tiller handle (11) and the upper rudder bearing (2) respectively, and fixing the tiller handle (11) and the upper rudder bearing (2) in fixed connection.

5. A method for repairing a scotch yoke steering gear according to claim 1 or 3, characterized in that: In the second step, first measuring the distance values ​​from the four oil cylinder reference points (102) to the center of the tiller handle (11) means: using a diagonal measuring tool to test the distance value from each oil cylinder reference point (102) to the center of the tiller handle (11), and obtaining the distance values ​​from the four oil cylinder reference points (102) to the center of the tiller handle (11) as L1, L2, L3, and L4 respectively; In the second step, when the distance values ​​from the four oil cylinder reference points (102) to the center of the tiller handle (11) are equal, it means that when the absolute value of the difference between any two of the distance values ​​L1, L2, L3, L4 from the four oil cylinder reference points (102) to the center of the tiller handle (11) is 0-0.5 mm, the center of the push steering mechanism (101) coincides with the center of the tiller handle (11); In the second step, the readjustment of the steering push mechanism (1) comprises first removing the plunger pin (15), and then pushing the corresponding plunger (14) in the steering push mechanism (1) to adjust the relative positions of the four cylinder reference points (102) and the steering push mechanism center (101).

6. A method for repairing a scotch yoke steering gear according to claim 1 or 3, characterized in that: In the third step, the flatness of the mounting surface of each slider (12), lining plate (13), and tiller (11) is detected by first applying indigo pigment to the mounting surface of each slider (12), lining plate (13), and tiller (11), respectively, then fitting a measuring plate to the mounting surface coated with indigo pigment, respectively, and then observing the distribution of indigo pigment on the measuring plate; if the indigo pigment on the measuring plate is evenly distributed, the flatness meets the requirement; if the indigo pigment on the measuring plate is unevenly distributed, the flatness does not meet the requirement.

7. A method for repairing a scotch yoke steering gear according to claim 1, 2 or 3, characterized in that: In the fourth step, the first reassembly of the slider (12) and the lining plate (13) with qualified flatness means: firstly placing the lining plate (13) on one side in the same plane outside the corresponding slider (12), and respectively fitting the third lining plate mounting surface (133) to the first slider mounting surface (121), and the fourth lining plate mounting surface (134) to the second slider mounting surface (122), and then fixing the slider (12) and the lining plate (13) by countersunk screws; then placing the lining plate (13) on the other side in the same plane outside the corresponding slider (12), and respectively fitting the seventh lining plate mounting surface (137) to the third slider mounting surface (123), and the eighth lining plate mounting surface (138) to the fourth slider mounting surface (124), and then fixing the slider (12) and the lining plate (13) by countersunk screws.

8. A method for repairing a scotch yoke steering gear according to claim 1, 2 or 3, characterized in that: In the fifth step, the step of adjusting the rudder pushing mechanism (1) means: pushing a corresponding plunger (14) in the rudder pushing mechanism (1) to adjust the position; In the fifth step, the step of making the two diagonal tiller forks (18) in the same plane closely fit with the mounting surfaces of the corresponding lining plates (13) and making the gap values ​​between the mounting surfaces equal means that the gap value between the diagonal first lining plate mounting surface (131) and the first tiller mounting surface (111) in the same plane is a1, and the gap value between the sixth lining plate mounting surface (136) and the fourth tiller mounting surface (114) is a2, and the first lining plate mounting surface (131) and the first tiller mounting surface (111) and the sixth lining plate mounting surface (136) and the fourth tiller mounting surface (114) are closely fit, and a1 and a2 are equal; In the fifth step, the gap value between the tiller fork (18) and the mounting surface of the liner (13) at another diagonal angle in the same plane is measured, which means that the gap value between the second liner mounting surface (132) and the second tiller mounting surface (112) at another diagonal angle in the same plane is c1, and the gap value between the fifth liner mounting surface (135) and the third tiller mounting surface (113) is c2, and the values ​​of c1 and c2 are measured respectively; In the fifth step, the step of determining the thickness of the adjustment gasket based on the gap value between the other diagonal tiller fork (18) and the mounting surface of the lining plate (13) in the same plane means: determining the thickness of the adjustment gasket based on the measured values ​​of c1 and c2, the thickness of the adjustment gasket between the second lining plate mounting surface (132) and the second tiller mounting surface (112) being equal to c1, and the thickness of the adjustment gasket between the fifth lining plate mounting surface (135) and the third tiller mounting surface (113) being equal to c2.

9. A method for repairing a scotch yoke steering gear according to claim 3, characterized in that: In the fifth step, adjusting the steering mechanism (1) means: pushing the corresponding plunger (14) in the steering mechanism (1) to adjust the position; In the fifth step, the step of making the two diagonal tiller forks (18) in the same plane closely fit with the mounting surfaces of the corresponding lining plates (13) and making the gap values ​​between the mounting surfaces equal means that the gap value between the diagonal first lining plate mounting surface (131) and the first tiller mounting surface (111) in the same plane is a1, and the gap value between the sixth lining plate mounting surface (136) and the fourth tiller mounting surface (114) is a2, and the first lining plate mounting surface (131) and the first tiller mounting surface (111) and the sixth lining plate mounting surface (136) and the fourth tiller mounting surface (114) are closely fit, and a1 and a2 are equal; In the fifth step, the gap value between the tiller fork (18) and the mounting surface of the liner (13) at another diagonal angle in the same plane is measured, which means that the gap value between the second liner mounting surface (132) and the second tiller mounting surface (112) at another diagonal angle in the same plane is c1, and the gap value between the fifth liner mounting surface (135) and the third tiller mounting surface (113) is c2, and the values ​​of c1 and c2 are measured respectively; In the fifth step, the thickness of the new lining is determined based on the gap value between the tiller fork (18) and the lining (13) mounting surface at another diagonal angle in the same plane, which means: the thickness of the new lining is determined based on the measured values ​​of c1 and c2, and the thickness of the new lining between the second lining mounting surface (132) and the second tiller mounting surface (112) is the sum of the thickness of the original lining (13) after grinding and c1, and the thickness of the new lining between the fifth lining mounting surface (135) and the third tiller mounting surface (113) is the sum of the thickness of the original lining (13) after grinding and c2.

10. A method for repairing a scotch yoke steering gear according to claim 1 or 3, characterized in that: In the sixth step, the gap between the tiller (11) and the slider (12) is adjusted to meet the installation requirements, which means that: the total gap value required for the installation of the tiller (11) and the slider (12) is X; on the same side, the gap value between the left tiller (11) and the lining plate (13) on the upper layer is a, the gap value between the left tiller (11) and the lining plate (13) on the lower layer is b, the gap value between the right tiller (11) and the lining plate (13) on the upper layer is c, and the gap value between the right tiller (11) and the lining plate (13) on the lower layer is d; First, push the plunger (14) on that side to adjust the relative position between the tiller (11) and the slider (12) on the same side so that a and b are equal, and c and d are equal; then adjust the gap value between the tiller (11) and the lining plate (13) in the same plane; When adjusting the clearance between the tiller handle (11) and the lining plate (13) in the same plane, first adjust the plungers (14) on both sides respectively so that a1 and a2 in the same plane are equal, and measure the values ​​of a1 and a2. Then, according to the total clearance value X required for the installation of the tiller handle (11) and the slider (12), adjust the clearance between the other diagonal tiller handle fork (18) and the installation surface of the corresponding lining plate (13) so that c1=c2=X-a1=X-a2; In the sixth step, the step of placing the adjustment gasket between the corresponding slider (12) and the lining plate (13) and then fixing them together means that the processed adjustment gasket is first placed between the corresponding slider (12) and the lining plate (13), and the mounting surface of the adjustment gasket is respectively fitted with the mounting surface of the outer side of the slider (12) and the inner side of the lining plate (13), and then the slider (12), the adjustment gasket and the lining plate (13) are fixed together by countersunk screws.

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