A flatness measuring device for a propulsion device used in a shipyard and a method for using the same

Abstract

The present invention discloses a flatness measuring device for a propulsion device used in a shipyard in the technical field of flatness measuring devices for propulsion devices, comprising a propulsion device body and a device bracket, an adjusting measuring rod is fixedly sleeved on the top of the outer wall of the adjusting shaft, a measuring roller that fits with the top of the propulsion device body is movably arranged between two groups of the mounting brackets, two groups of scale blocks are fixedly arranged on the left end of the top of the adjusting measuring rod, and reminder assemblies that cooperate with the measuring rod assembly are arranged on the opposite sides of the two groups of scale blocks. The present invention can adjust the adjusting measuring rod according to the radius of the propulsion device body, and adjust the adjusting shaft according to the height of the propulsion device body. The adjustment method is to pull the pull plate to drive the clamping rod to move outward, so that the clamping rod is separated from the blind hole, and then the movable rod is in an active state, so that the measuring roller can better contact with the propulsion device body, and can adapt to the measurement of propulsion device bodies of different specifications, with higher practicality and reduced use or production costs.

Description

Technical Field

[0001] The invention relates to the technical field of flatness measuring equipment for a propulsion device, and in particular to flatness measuring equipment for a propulsion device used in a shipyard and a use method thereof. Background Art

[0002] Most of the ships manufactured by the shipyard are equipped with full-revolving propulsion devices. Full-revolving propulsion devices are a kind of power equipment in ships that integrates ship rudder blades and propeller propulsion. At the same time, they have good maneuverability and the propeller can rotate 360° around the vertical axis. Therefore, the direction of thrust can be changed as needed, which can make the ship rotate in place, move laterally, turn sharply, advance and retreat quickly, and sail at a slow speed. The transmission device is suspended vertically at the stern and can be hoisted through the opening of the stern deck. It does not need to be docked for maintenance, which greatly shortens the repair time. Therefore, it is widely used in engineering ships such as offshore platform supply ships and tugboats. Unlike ordinary propellers connected to the stern tube device, the ship's full-revolving propulsion device is suspended at the stern and is fastened to the circular cylinder of the hull through bolts. This connection method is similar to the pipeline flange connection, but it must ensure watertightness and sufficient tightening force. Therefore, the control of the flatness of the main body is very strict. The existing flatness measurement equipment of the propulsion device has certain defects:

[0003] 1. Low adjustability and certain limitations in use, which greatly increases the cost of use and production; 2. Little information can be obtained from the measurement, and it is impossible to know in time which plane has an error, which is inconvenient for later processing. Most of them use dial indicators. In order to observe the changes in flatness in time, the user needs to observe the dial indicator all the time, which has high labor intensity. For this reason, we propose a flatness measuring device and a method for using a propulsion device for a shipyard. Summary of the invention

[0004] The object of the present invention is to provide a flatness measuring device for a propulsion device used in a shipyard and a method for using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flatness measuring device for a propulsion device used in a shipyard, comprising a propulsion device body and a device bracket, wherein the device bracket is fixedly arranged at the bottom center of the propulsion device body, a mounting nesting cylinder is fixedly inserted at the top center of the device bracket, an adjusting shaft is movably arranged in the mounting nesting cylinder, a connecting bearing is sleeved at the bottom of the outer wall of the adjusting shaft, and a bearing bushing is fixedly sleeved on the outer wall of the connecting bearing, and the outer wall of the bearing bushing is fixed to the inner wall of the mounting nesting cylinder, an adjusting measuring rod is fixedly sleeved on the top of the outer wall of the adjusting shaft, the adjusting shaft and the adjusting measuring rod have the same structure, and two groups of mounting brackets with the same structure are symmetrically arranged on the left end of the bottom of the adjusting measuring rod. A measuring roller that fits with the top of the propulsion device body is movably arranged between the two groups of mounting brackets, and two groups of measuring rod assemblies with the same structure are arranged through the upper and lower ends of the left end of the adjusting measuring rod, and the bottom of the measuring rod assembly fits with the top of the measuring roller, and two groups of scale blocks are fixedly arranged on the left end of the top of the adjusting measuring rod, and the two groups of scale blocks correspond to the two groups of measuring rod assemblies, and the scale blocks are located on the rear side of the measuring rod assembly, and reminder assemblies that cooperate with the measuring rod assembly are arranged on the opposite sides of the two groups of scale blocks, and a connecting block is fixedly arranged on the top of the outer wall on the opposite side of the two groups of scale blocks, and an adjusting screw is threadedly inserted on the connecting block, and the bottom of the adjusting screw is movably connected to the top of the measuring rod assembly through a bearing.

[0006] Furthermore, the adjusting shaft includes a sleeve rod, a movable rod is movably inserted in the top of the sleeve rod, limit sliders are fixedly provided at the bottom of the left and right outer walls of the movable rod, and a limit sliding groove matching the limit slider is vertically opened in the inner wall of the sleeve rod, a clamping rod is movably inserted in the top of the front outer wall of the sleeve rod, a pull plate is welded on the front end of the clamping rod, a reset spring is sleeved on the outer wall of the clamping rod, the reset spring is located between the sleeve rod and the pull plate, and blind holes matching the clamping rod are evenly opened in the front outer wall of the movable rod.

[0007] Furthermore, the mounting bracket includes a vertical plate, the top of the vertical plate is fixedly connected to an arc plate, and a fixing bolt is inserted on the arc plate, the arc plate is fixedly connected to the bottom of the adjusting measuring rod through the fixing bolt, a vertical sliding opening is opened on the vertical plate, and a matching moving block is slidably arranged in the vertical sliding opening, a connecting rod is movably arranged on the side of the moving block close to the measuring roller through a bearing, the top of the moving block is fixedly connected to the inner wall of the top of the vertical sliding opening through a stress spring, and the end of the connecting rod away from the moving block is fixed to the side wall of the measuring roller

[0008] Furthermore, the measuring rod assembly includes a measuring rod inserted into an adjustable measuring rod, a groove is provided at the bottom of the measuring rod, and a roller that fits with the top of the measuring roller is arranged in the groove through a rotating shaft, support blocks are fixedly arranged at the bottom of the left and right outer walls of the measuring rod, and the top of the support block is connected to the bottom of the adjustable measuring rod through a reset spring, and an indicating block that cooperates with the scale block is fixedly arranged in the center of the top of the front outer wall of the measuring rod by screws.

[0009] Furthermore, the reminder component includes an insert movably arranged on the side wall of the scale block, a transverse transmission rod is arranged on the front outer wall of the insert through a rotating shaft, the bottom end of the transmission rod close to the measuring roller is fitted with the top of the indicator block, a micro-counterweight block is arranged on the top end of the transmission rod close to the indicator block, and a driven rod is arranged on the top and bottom of the front outer wall of the transmission rod away from the indicator block through a pin shaft, two groups of driven rods are arranged on the rear sides of the two groups, and a sliding groove matching the sliding rod is vertically opened on the front outer wall of the insert, and infrared sensors matching the driven rod are arranged on the top and bottom of the front outer wall of the insert, and the infrared sensor is located on the outside of the driven rod.

[0010] Furthermore, a micro main box is fixedly provided at an upper position of the right outer wall of the adjustment shaft, an alarm is provided on the front side of the micro main box, and a battery is installed in the micro main box. A control chip is integrated in the micro main box, and the control chip is electrically connected to the infrared sensor and the alarm.

[0011] Furthermore, a micro-level is provided on the left side of the top outer wall of the adjusting measuring rod, and reinforcing ribs are provided between the adjusting measuring rod and the adjusting shaft.

[0012] Furthermore, a circular convex edge is arranged at the top of the mounting nested cylinder, and fixing bolts are threadedly inserted at the left and right sides of the top of the convex edge, and the mounting nested cylinder is fixedly connected to the device bracket through the fixing bolts.

[0013] Furthermore, a method for using a flatness measuring device for a propulsion device in a shipyard is provided, and the specific steps of the method are as follows:

[0014] S1: Before use, first fix the device bracket to the bottom of the propulsion device body through external bolts, adjust the measuring rod according to the radius of the propulsion device body, and adjust the adjusting shaft according to the height of the propulsion device body. The adjustment method is: pull the pull plate to drive the clamping rod to move outward to separate the clamping rod from the blind hole, and then make the movable rod active until it is adjusted to the state shown in the attached figure, and observe whether the miniature level is level. If the miniature level is not level, turn the fixing bolts on the mounting nesting cylinder to adjust the height of the mounting nesting cylinder for fine-tuning. The measuring roller fits with the top outer wall of the propulsion device body. After the measuring roller fits with the top outer wall of the propulsion device body, observe whether the transmission rod fits with the top of the indicator block. If not, turn the adjusting screw to drive the insert to move until the transmission rod fits with the top of the indicator block and ensure that the transmission rod is level. Then, prepare for the measurement operation;

[0015] S2: When in use, the adjusting shaft is rotated to rotate, thereby rotating the adjusting measuring rod. Through the effect of friction, the measuring roller makes a circular motion on the top outer wall of the propulsion device body. When the flatness of the top outer wall of the propulsion device body is different, the measuring roller will move. When the top outer wall plane of the propulsion device body is downward, the moving block is driven by the stress spring to move the measuring roller downward. Then, under the influence of the reset spring, the measuring rod moves downward to contact the measuring roller. Then, the indicating block no longer contacts the transmission rod. Then, under the influence of the counterweight block, one end of the transmission rod corresponding to the indicating block moves downward, while the other end moves upward, thereby driving the top driven rod to move. That is, when it is irradiated by the top infrared sensor, it will reflect the signal and transmit a digital signal to the control chip in the micro main box. The control chip triggers the alarm to remind the user to record. Similarly, when the top outer wall plane of the propulsion device body is upward, the measuring roller will move upward, and then push the measuring rod upward, and then the indicator block will push one end of the transmission rod, and then the end of the transmission rod corresponding to the indicator block will move upward, and the other end will move downward, thereby driving the bottom driven rod to move, and then it will be irradiated by the bottom infrared sensor, and it will reflect the signal and transmit a digital signal to the control chip in the micro main box. The control chip triggers the alarm to remind the user to record.

[0016] S3: After use, turn off the electrical components used, remove the device bracket and separate it from the mounting sleeve, fix the device bracket to the top of the propulsion device body, and adjust according to step S1 so that the measuring roller contacts the bottom of the propulsion device body to measure the flatness of the bottom outer wall of the propulsion device body.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1) The present invention can adjust the measuring rod according to the radius of the propulsion device body, and adjust the rotating shaft according to the height of the propulsion device body. The adjustment method is to pull the pull plate to drive the clamping rod to move outward, so that the clamping rod is separated from the blind hole, and then the movable rod is in an active state, so that the measuring roller can better contact with the propulsion device body, and it is suitable for measuring propulsion device bodies of different specifications, which is more practical and reduces the use or production cost;

[0019] 2) The present invention is provided with a measuring rod assembly and a reminder assembly. The cooperation of the reminder assembly, the alarm and the control chip can timely remind the user. When the outer wall plane at the top of the propulsion device body is downward, the stress spring drives the moving block to move the measuring roller downward, and then the reset spring affects the measuring rod downward to contact the measuring roller, and then the indicating block moves downward and no longer contacts the transmission rod. Then, affected by the counterweight block, one end of the transmission rod corresponding to the indicating block moves downward, and the other end moves upward, and then the top driven rod is driven to move. Then, it is irradiated by the top infrared sensor, and the signal is reflected and sent out as a digital signal to the control chip in the micro main box. The control chip triggers the alarm to remind the user to record. The user can check the value on the scale block corresponding to the indicating block and compare it with the initial value. Similarly, when the top outer wall plane of the propulsion device body is facing upward, the measuring roller will move upward accordingly, and then push the measuring rod upward, and then the indicating block will move upward and push one end of the transmission rod, and then the end of the transmission rod corresponding to the indicating block will move upward, and the other end will move downward, thereby driving the driven rod at the bottom to move, and then it will be irradiated by the infrared sensor at the bottom, and it will reflect the signal and send a digital signal to the control chip in the micro main box. The control chip triggers the alarm to remind the user to record. The user can check the value on the scale block corresponding to the indicating block and compare it with the initial value. Therefore, the user does not need to observe all the time, and can find out the plane problem in time. There is no need to observe all the time, which reduces the labor intensity of use. It is also convenient to better observe and record the flatness changes of the propulsion device, and make corresponding processing and maintenance in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the adjustable shaft of the present invention;

[0022] Figure 3 This is a schematic diagram of the mounting bracket structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the measuring rod assembly of the present invention.

[0024] In the figure: 1. Propulsion device body; 2. Device bracket; 3. Installing nesting cylinder; 4. Adjusting shaft; 41. Sleeve rod; 42. Movable rod; 43. Limiting slider; 44. Clamping rod; 45. Reset spring; 5. Connecting bearing; 6. Bearing bushing; 7. Adjusting measuring rod; 8. Mounting bracket; 81. Vertical plate; 82. Arc plate; 83. Stress spring; 84. Moving block; 9. Measuring roller; 10. Measuring rod assembly; 101. Measuring rod; 102. Roller; 103. Reset spring; 104. Indicator block; 11. Scale block; 12. Reminder assembly; 121. Inlay; 122. Transmission rod; 123. Follower rod; 13. Adjusting screw; 14. Mini main box; 15. Alarm; 16. Battery; 17. Mini level. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-4 The present invention provides a technical solution: a flatness measuring device for a propulsion device used in a shipyard, see Figure 1 , including a propulsion device body 1 and a device bracket 2, the propulsion device body 1 and the device bracket 2 are widely used in this field, the propulsion device body 1 is annular, the device bracket 2 is a long strip structure, and is installed by matching the fixing bolts at the left and right ends with the screw holes on the propulsion device body 1, and the device bracket 2 is fixedly arranged at the bottom center of the propulsion device body 1;

[0027] See also Figure 1 , a mounting nesting cylinder 3 is fixedly inserted in the center of the top of the device bracket 2, and the mounting nesting cylinder 3 passes through the bottom of the device bracket 2. An adjusting shaft 4 is movably arranged in the mounting nesting cylinder 3, and a connecting bearing 5 is sleeved at the bottom of the outer wall of the adjusting shaft 4 to reduce the rotation wear of the adjusting shaft 4, and a bearing bushing 6 is fixedly sleeved on the outer wall of the connecting bearing 5, and the outer wall of the bearing bushing 6 is fixed to the inner wall of the mounting nesting cylinder 3, and can be fixed by screws or bolts. The bearing bushing 6 is used to protect the connecting bearing 5, which is widely used in this field and is not described in detail here;

[0028] See also Figure 1 The top of the outer wall of the adjusting shaft 4 is fixedly sleeved with an adjusting measuring rod 7. The adjusting shaft 4 and the adjusting measuring rod 7 have the same structure. In order to facilitate the user to rotate the adjusting shaft 4 and then drive the adjusting measuring rod 7 to rotate, a driving disk for the user to rotate is provided on the top of the adjusting shaft 4;

[0029] See also Figure 1 , two groups of mounting brackets 8 with the same structure are symmetrically arranged at the left end of the bottom of the adjusting measuring rod 7, the mounting bracket 8 is used to install the measuring roller 9, and a measuring roller 9 that fits with the top of the propulsion device body 1 is movably arranged between the two groups of mounting brackets 8, and the measuring roller 9 contacts with the propulsion device body 1 to measure the flatness of the propulsion device body 1, and two groups of measuring rod assemblies 10 with the same structure are arranged through the left end of the adjusting measuring rod 7, and the measuring rod assembly 10 is between the two groups of mounting brackets 8. The two groups of measuring rod assemblies 10 are respectively in contact with the left and right ends of the top of the measuring roller 9, so that a more specific position of uneven flatness can be further measured (when the left end of the measuring roller 9 is upward, the measuring rod assembly 10 and the reminder assembly 12 on the left side react), and the bottom of the measuring rod assembly 10 fits with the top of the measuring roller 9;

[0030] See also Figure 1 , two groups of scale blocks 11 are fixedly arranged at the left end of the top of the adjustment measuring rod 7, and scale lines are arranged on the front side of the scale blocks 11, so that the user can observe and calculate the difference in flatness. Assuming that the initial value of the flatness is thirteen, and after the reminder component 12 reminds, it is observed that the displayed flatness value is fifteen, and then the flatness difference is two, and the two groups of scale blocks 11 correspond to the two groups of measuring rod components 10, and the scale blocks 11 are located at the rear side of the measuring rod components 10, and the two groups of scale blocks 11 are arranged on the opposite side with reminder components 12 matching the measuring rod components 10;

[0031] See also Figure 2 , the top of the outer wall of the two groups of scale blocks 11 on the opposite side are fixedly provided with connecting blocks, and the connecting blocks are threadedly inserted with adjusting screws 13. The bottom of the adjusting screw 13 is movably connected with the top of the measuring rod assembly 10 through a bearing (that is, it is movably connected with the top of the insert 121 in the measuring rod assembly 10). By making the measuring roller 9 contact with the propulsion device body 1, the initial position is determined, and the scale value of the scale block 11 corresponding to the indicating block 104 is the initial value. According to the position of the indicating block 104, the adjusting screw 13 is rotated to make the transmission rod 122 in the measuring rod assembly 10 contact with the top of the indicating block 104. It should be noted that after the transmission rod 122 contacts with the top of the indicating block 104, the transmission rod 122 must be in a horizontal state.

[0032] like Figure 2As shown: (the structure of the adjusting shaft 4 is the same as that of the adjusting measuring rod 7, but the corresponding positions will change, which will not be described in detail here) the adjusting shaft 4 includes a sleeve rod 41, a movable rod 42 is movably inserted at the top of the sleeve rod 41, and limit sliders 43 are fixedly arranged at the bottom of the left and right outer walls of the movable rod 42, the limit sliders 43 are located below the adjusting measuring rod 7, and the inner wall of the sleeve rod 41 is vertically provided with limit slides matching the limit slides 43, the limit slides 43 and the limit slides ensure that the clamping rod 44 accurately matches the blind hole, and the top of the front outer wall of the sleeve rod 41 is movably inserted with a clamping rod 44, the front end of the clamping rod 44 is welded with a pull disk, and the outer wall of the clamping rod 44 is sleeved with a return spring 45, the return spring 45 is used to drive the clamping rod 44 moving outward to reset, the return spring 45 is located between the sleeve rod 41 and the pull disk, one end of the return spring 45 is fixed to the pull disk, and the other end is fixed to the outer wall of the sleeve rod 41, and the front outer wall of the movable rod 42 is evenly provided with blind holes matching the clamping rod 44;

[0033] like Figure 3 As shown: the mounting bracket 8 includes a vertical plate 81, the top of which is fixedly connected with an arc plate 82, which is convenient for use with the cylindrical adjustment measuring rod 7, and a fixing bolt is inserted on the arc plate 82, and the arc plate 82 is fixedly connected to the bottom of the adjustment measuring rod 7 through the fixing bolt, which is convenient for installation and disassembly, and a vertical sliding opening is provided on the vertical plate 81, and a matching moving block 84 is slidably arranged in the vertical sliding opening, and the moving block 84 cooperates with the vertical sliding groove of the inner wall of the vertical sliding opening through the sliders on the front and rear sides, and a connecting rod is movably arranged on the side of the moving block 84 close to the measuring roller 9 through a bearing, which is convenient for the measurement roller 9 to rotate, and the top of the moving block 84 is fixedly connected to the inner wall of the top of the vertical sliding opening through a stress spring 83, and the stress spring 83 facilitates the resetting of the measurement roller 9, and the end of the connecting rod away from the moving block 84 is fixed to the side wall of the measurement roller 9;

[0034] like Figure 4 As shown: the measuring rod assembly 10 includes a measuring rod 101 inserted into the adjusting measuring rod 7, and a guide hole matching the measuring rod 101 is provided on the adjusting measuring rod 7. At the same time, in order to reduce wear, a wear-resistant ring is provided in the guide hole, and the outer wall of the wear-resistant ring is fixed to the inner wall of the guide hole, and the inner wall of the wear-resistant ring is fitted with the outer wall of the measuring rod 101. A groove is provided at the bottom of the measuring rod 101, and a roller 102 fitting with the top of the measuring roller 9 is provided in the groove through a rotating shaft. The roller 102 prevents the measuring rod 101 from directly contacting the measuring roller 9, affecting the rotation of the measuring roller 9 and causing wear. Support blocks are fixedly provided at the bottom of the left and right outer walls of the measuring rod 101, which can be welded, and the top of the support block is connected to the bottom of the adjusting measuring rod 7 through a reset spring 103. An indicating block 104 matching the scale block 11 is fixedly provided at the center of the top of the front outer wall of the measuring rod 101 by screws, and the reset spring 103 facilitates the measuring rod 101 to be reset to the initial position after being moved up or down;

[0035] like Figure 4 As shown in the figure, the reminder component 12 includes an insert 121 movably arranged on the side wall of the scale block 11. The insert 121 can be slidably connected with the vertical slide groove of the side wall of the scale block 11 by using a slider. The front outer wall of the insert 121 is provided with a horizontal transmission rod 122 through a rotating shaft. Figure 4 It can be seen that the rotating shaft is arranged in the middle position of the transmission rod 122, so that the transmission rod 122 plays a role similar to a lever, and the end of the bottom of the transmission rod 122 close to the measuring roller 9 is in contact with the top of the indicator block 104, and the end of the top of the transmission rod 122 close to the indicator block 104 is provided with a micro-weight block, and the micro-weight block makes the end of the transmission rod 122 corresponding to the indicator block 104 contact with the indicator block 104. When the indicator block 104 moves downward, it is immediately affected by gravity, and the micro-weight block makes the end of the transmission rod 122 corresponding to the indicator block 104 move downward until it contacts the indicator block 104 again, and the front side of the transmission rod 122 A driven rod 123 is provided at the top and bottom of one end of the outer wall away from the indicator block 104 through a pin shaft, and the driven rod 123 is convenient for cooperating with the rotation of the transmission rod 122. Slide blocks are provided at the rear sides of the two sets of driven rods 123, and a slide groove matching the slide block is vertically opened on the front outer wall of the insert 121. The slide block and the slide groove ensure that the driven rod 123 cooperates with the infrared sensor. Infrared sensors cooperating with the driven rod 123 are provided at the top and bottom of the front outer wall of the insert 121. The infrared sensors at the top and bottom are respectively matched with the driven rods 123 at the top and bottom, and the infrared sensors are located on the outside of the driven rod 123.

[0036] like Figure 1 As shown: a micro main box 14 is fixedly arranged at the upper position of the outer wall on the right side of the adjustment shaft 4, and an alarm 15 is arranged on the front side of the micro main box 14. The alarm 15 is used to remind the user, and a battery 16 is installed in the micro main box 14. The battery 16 is used to power the electrical components in the present invention. A control chip is integrated in the micro main box 14, and the control chip is electrically connected with the infrared sensor and the alarm 15. The control chip adopts a trigger type programmable chip with a model of 74HC74DR2G, which is used to receive the detection signal of the infrared sensor and transmit it to trigger the alarm 15. The infrared sensor of the present invention adopts a product with a model of HOA0149-001, which has a reflective effect and can realize the effect of object detection. The installation height of the infrared sensor is located at the driven rod 123. Specifically, the top infrared sensor is located above the top driven rod 123, and the bottom infrared sensor is located below the bottom driven rod 123. As long as the driven rod 123 moves, the infrared rays will be reflected;

[0037] like Figure 1As shown: a micro-level 17 is arranged on the left side of the outer wall of the top of the adjusting measuring rod 7. The micro-level 17 is widely used in this field and will not be described in detail here. The micro-level 17 is used to observe the horizontality of the adjusting measuring rod 7, so as to ensure the accuracy of the flatness measurement. A reinforcing rib is arranged between the adjusting measuring rod 7 and the adjusting shaft 4 to improve the strength between the adjusting measuring rod 7 and the adjusting shaft 4.

[0038] like Figure 1 As shown: an annular convex edge is arranged on the top of the mounting nesting cylinder 3, the convex edge and the mounting nesting cylinder 3 are integrally formed, and fixing bolts are threadedly inserted on the left and right sides of the top of the convex edge, the mounting nesting cylinder 3 is fixedly connected to the device bracket 2 by the fixing bolts, and the device bracket 2 is provided with screw holes matching the fixing bolts, and the mounting nesting cylinder 3 is fixedly connected with the screw holes of the device bracket 2 by the fixing bolts, which is convenient for installation and disassembly, and can also play a role of fine-tuning. Observe the micro-level 17 to check whether the adjustment measuring rod 7 is level. If it is not level, fine-tune by adjusting the connection between the mounting nesting cylinder 3 and the device bracket 2 by rotating the fixing bolts.

[0039] A method for using a flatness measuring device for a propulsion device in a shipyard, the specific steps of the method are:

[0040] S1: Before use, first fix the device bracket 2 to the bottom of the propulsion device body 1 with external bolts, adjust the measuring rod 7 according to the radius of the propulsion device body 1, and adjust the rotating shaft 4 according to the height of the propulsion device body 1. The adjustment method is: pull the pull plate to drive the clamping rod 44 to move outward, so that the clamping rod 44 is separated from the blind hole, and then the movable rod 42 is in an active state until it is adjusted to the attached Figure 1 In the state shown, observe whether the micro-level 17 is level. If the micro-level 17 is not level, turn the fixing bolt on the installation nesting cylinder 3 to adjust the height of the installation nesting cylinder 3 for fine adjustment. The measuring roller 9 fits with the top outer wall of the propulsion device body 1. After the measuring roller 9 fits with the top outer wall of the propulsion device body 1, observe whether the transmission rod 122 fits with the top of the indicator block 104. If not, turn the adjusting screw 13 to drive the insert to move until the transmission rod 122 fits with the top of the indicator block 104, and ensure that the transmission rod 122 is level, and then prepare for the measurement operation;

[0041] S2: When in use, the adjusting shaft 4 is rotated to rotate, thereby rotating the adjusting measuring rod 7, and through the effect of friction, the measuring roller 9 makes a circular motion on the top outer wall of the propulsion device body 1. When the flatness of the top outer wall of the propulsion device body 1 is different, the measuring roller 9 will move. When the top outer wall plane of the propulsion device body 1 is downward, the moving block 84 is driven by the stress spring 83 to move the measuring roller 9 downward, and then under the influence of the reset spring 103, the measuring rod 101 moves downward to contact the measuring roller 9, and then the indicating block 104 no longer contacts the transmission rod 122, and then under the influence of the counterweight block, one end of the transmission rod 122 corresponding to the indicating block 104 will move downward, and the other end will move upward, thereby driving the top driven rod 123 to move downward. When the measuring rod 101 moves, it will be irradiated by the infrared sensor at the top, and then it will reflect the signal and send out a digital signal to the control chip in the micro main box 14. The control chip triggers the alarm 15 to remind the user to record. Similarly, when the top outer wall plane of the propulsion device body 1 is upward, the measuring roller 9 will move upward accordingly, and then push the measuring rod 101 upward, and then the indicator block 104 will push one end of the transmission rod 122, and then the end of the transmission rod 122 corresponding to the indicator block 104 will move upward, and the other end will move downward, thereby driving the driven rod 123 at the bottom to move, and then it will be irradiated by the infrared sensor at the bottom, and then it will reflect the signal and send out a digital signal to the control chip in the micro main box 14. The control chip triggers the alarm 15 to remind the user to record.

[0042] S3: After use, turn off the electrical components used, remove the device bracket 2 and separate it from the mounting sleeve 3, fix the device bracket 2 to the top of the propulsion device body 1, and adjust according to step S1 to make the measuring roller 9 contact with the bottom of the propulsion device body 1 to measure the flatness of the bottom outer wall of the propulsion device body 1.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flatness measuring device for a propulsion device for use in a shipyard, comprising a propulsion device body (1) and a device bracket (2), wherein the device bracket (2) is fixedly arranged at the center of the bottom of the propulsion device body (1), and is characterized in that: A mounting nesting cylinder (3) is fixedly inserted in the center of the top of the device bracket (2), an adjusting shaft (4) is movably arranged in the mounting nesting cylinder (3), a connecting bearing (5) is sleeved at the bottom of the outer wall of the adjusting shaft (4), and a bearing bushing (6) is fixedly sleeved on the outer wall of the connecting bearing (5), and the outer wall of the bearing bushing (6) is fixed to the inner wall of the mounting nesting cylinder (3), an adjusting measuring rod (7) is fixedly sleeved at the top of the outer wall of the adjusting shaft (4), the adjusting shaft (4) and the adjusting measuring rod (7) have the same structure, two groups of mounting brackets (8) with the same structure are symmetrically arranged at the left end of the bottom of the adjusting measuring rod (7), a measuring roller (9) that fits the top of the propulsion device body (1) is movably arranged between the two groups of mounting brackets (8), and the adjusting measuring rod ( 7) two groups of measuring rod assemblies (10) with the same structure are arranged through the upper and lower ends of the left end, and the bottom of the measuring rod assembly (10) is in contact with the top of the measuring roller (9); two groups of scale blocks (11) are fixedly arranged on the left end of the top of the adjusting measuring rod (7), and the two groups of scale blocks (11) correspond to the two groups of measuring rod assemblies (10); the scale blocks (11) are located on the rear side of the measuring rod assembly (10); the two groups of scale blocks (11) are arranged on the opposite sides thereof with reminder assemblies (12) matched with the measuring rod assembly (10); the two groups of scale blocks (11) are fixedly arranged on the top of the outer wall of the opposite sides thereof with a connecting block, and an adjusting screw (13) is threadedly inserted on the connecting block, and the bottom of the adjusting screw (13) is movably connected to the top of the measuring rod assembly (10) through a bearing; The adjusting shaft (4) comprises a sleeve rod (41), a movable rod (42) is movably inserted at the top of the sleeve rod (41), a limit slide block (43) is fixedly arranged at the bottom of the left and right outer walls of the movable rod (42), and a limit slide groove matching the limit slide block (43) is vertically opened on the inner wall of the sleeve rod (41), a clamping rod (44) is movably inserted at the top of the front outer wall of the sleeve rod (41), a pull plate is welded at the front end of the clamping rod (44), a reset spring (45) is sleeved on the outer wall of the clamping rod (44), and the reset spring (45) is located between the sleeve rod (41) and the pull plate, and blind holes matching the clamping rod (44) are evenly opened on the front outer wall of the movable rod (42); The mounting bracket (8) comprises a vertical plate (81), the top of the vertical plate (81) is fixedly connected to an arc plate (82), and a fixing bolt is inserted into the arc plate (82), the arc plate (82) is fixedly connected to the bottom of the adjusting measuring rod (7) via the fixing bolt, the vertical plate (81) is provided with a vertical sliding opening, and a matching moving block (84) is slidably arranged in the vertical sliding opening, a connecting rod is movably arranged on a side of the moving block (84) close to the measuring roller (9) via a bearing, the top of the moving block (84) is fixedly connected to the inner wall of the top of the vertical sliding opening via a stress spring (83), and the end of the connecting rod away from the moving block (84) is fixed to the side wall of the measuring roller (9); The measuring rod assembly (10) comprises a measuring rod (101) plugged into the adjusting measuring rod (7), a groove being provided at the bottom of the measuring rod (101), and a roller (102) being arranged in the groove via a rotating shaft and being in contact with the top of the measuring roller (9), support blocks being fixedly arranged at the bottom of the left and right outer walls of the measuring rod (101), and the top of the support block being connected to the bottom of the adjusting measuring rod (7) via a return spring (103), and an indicating block (104) being fixedly arranged at the center of the top of the front outer wall of the measuring rod (101) via a screw and being in contact with the scale block (11); The reminder component (12) comprises an insert (121) movably arranged on the side wall of the scale block (11); a transverse transmission rod (122) is rotatably arranged on the front outer wall of the insert (121) via a rotating shaft; an end of the bottom of the transmission rod (122) close to the measuring roller (9) is in contact with the top of the indicator block (104); a micro-weight block is arranged on the top of the top of the transmission rod (122) close to the indicator block (104); a driven rod (123) is rotatably arranged on the top and bottom of the front outer wall of the transmission rod (122) away from the indicator block (104) via a pin; sliders are arranged on the rear sides of two groups of the driven rods (123); a sliding groove matching the slider is vertically opened on the front outer wall of the insert (121); an infrared sensor matching the driven rod (123) is arranged on the top and bottom of the front outer wall of the insert (121); the infrared sensor is located on the outside of the driven rod (123); A micro main box (14) is fixedly arranged at an upper position of the right outer wall of the adjustment shaft (4), an alarm (15) is arranged on the front side of the micro main box (14), and a storage battery (16) is installed in the micro main box (14). A control chip is integrated in the micro main box (14), and the control chip is electrically connected to the infrared sensor and the alarm (15).

2. The flatness measuring device for a propulsion device for a shipyard according to claim 1, characterized in that: A micro-level (17) is provided on the left side of the top outer wall of the adjusting measuring rod (7), and a reinforcing rib is provided between the adjusting measuring rod (7) and the adjusting rotating shaft (4).

3. The flatness measuring device for a propulsion device for a shipyard according to claim 1, characterized in that: The top of the mounting nesting cylinder (3) is provided with an annular convex edge, and fixing bolts are threadedly inserted on the left and right sides of the top of the convex edge. The mounting nesting cylinder (3) is fixedly connected to the device bracket (2) via the fixing bolts.

4. A method for using the flatness measuring device for a propulsion device for a shipyard according to any one of claims 1 to 3, characterized in that: The specific steps of this method are: S1: Before use, first fix the device bracket (2) to the bottom of the propulsion device body (1) by external bolts, adjust the measuring rod (7) according to the radius of the propulsion device body (1), and adjust the adjusting shaft (4) according to the height of the propulsion device body (1). The adjustment method is: pull the pull plate to drive the clamping rod (44) to move outward, so that the clamping rod (44) is separated from the blind hole, and then the movable rod (42) is in an active state until it is adjusted to the state shown in Figure 1, and observe whether the micro-level (17) is level. If the micro-level (17) is If it is not level, turn the fixing bolt on the installation nesting cylinder (3) to adjust the height of the installation nesting cylinder (3) for fine adjustment. The measuring roller (9) fits with the top outer wall of the propulsion device body (1). After the measuring roller (9) fits with the top outer wall of the propulsion device body (1), observe whether the transmission rod (122) fits with the top of the indicator block (104). If not, turn the adjusting screw (13) to drive the insert to move until the transmission rod (122) fits with the top of the indicator block (104) and ensure that the transmission rod (122) is level. Then, prepare for the measurement operation. S2: When in use, the adjusting shaft (4) is rotated to rotate, thereby rotating the adjusting measuring rod (7). Through the effect of friction, the measuring roller (9) moves in a circle on the top outer wall of the propulsion device body (1). When the flatness of the top outer wall of the propulsion device body (1) is different, the measuring roller (9) moves. When the top outer wall of the propulsion device body (1) faces downward, the moving block (84) is driven by the stress spring (83) to move the measuring roller (9) downward. Then, under the influence of the return spring (103), the measuring rod (101) moves downward to contact the measuring roller (9). Then, the indicating block (104) no longer contacts the transmission rod (122). Then, under the influence of the counterweight block, one end of the transmission rod (122) corresponding to the indicating block (104) moves downward, while the other end moves upward, thereby driving the driven rod at the top. (123) moves, and then is irradiated by the top infrared sensor, and will reflect the signal, and transmit a digital signal to the control chip in the micro main box (14), and the control chip triggers the alarm (15) to remind the user to record. Similarly, when the top outer wall plane of the propulsion device body (1) is upward, the measuring roller (9) moves upward, and then pushes the measuring rod (101) upward, and then the indicating block (104) pushes one end of the transmission rod (122), and then the end of the transmission rod (122) corresponding to the indicating block (104) will move upward, and the other end will move downward, thereby driving the bottom driven rod (123) to move, and then is irradiated by the bottom infrared sensor, and will reflect the signal, and transmit a digital signal to the control chip in the micro main box (14), and the control chip triggers the alarm (15) to remind the user to record. S3: After use, turn off the electrical components used, remove the device bracket (2) and separate it from the mounting sleeve (3), fix the device bracket (2) to the top of the propulsion device body (1), and adjust according to step S1 so that the measuring roller (9) contacts the bottom of the propulsion device body (1) to measure the flatness of the bottom outer wall of the propulsion device body (1).

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