A device for monitoring the alignment deviation of a ship power plant

Abstract

The present invention discloses a device for monitoring the alignment deviation of a ship power plant, belonging to the field of alignment deviation monitoring equipment. It includes a workbench and a vertical fixing frame fixedly installed on the workbench. A horizontal fixing rod is fixedly connected horizontally on the surface of the vertical fixing frame. A sliding sleeve block is slidably sleeved on the periphery of the horizontal fixing rod. An installation box is fixedly installed on the front surface of the sliding sleeve block. A laser rangefinder is fixedly installed in the installation box. A pushing structure and a clamping component are respectively connected to the workbench; an alignment component is installed on the side of the laser rangefinder; by setting the alignment component in the present invention, the periphery of the end of the output shaft of the power plant to be measured can always be aligned by the laser rangefinder, thus avoiding the inaccuracy caused by manual adjustment; during this period, with the cooperation of the rotating disc, the output shaft of the power plant to be measured will not rub against the Z-shaped plate. One is to avoid the inaccurate monitoring results caused by heat generated by friction, and the other is to avoid the loss caused by friction.

Description

Technical Field

[0001] The present invention relates to the technical field of alignment deviation monitoring devices, and particularly to a device for monitoring the alignment deviation of a ship power plant. Background Art

[0002] In the field of ship manufacturing and maintenance, the alignment accuracy of the power plant is one of the key factors to ensure the stable operation of the ship and extend the service life of the power plant. Traditional methods for monitoring the alignment deviation of ship power plants mostly rely on manual measurement and adjustment, which are not only time-consuming and laborious, but also easily affected by human factors, making it difficult to guarantee the accuracy and reliability of the measurement results.

[0003] Specifically, traditional methods usually require technicians to manually adjust the position of the laser rangefinder to align with the end of the output shaft of the power plant to be measured. This process is not only cumbersome, but also difficult to avoid human errors. For example, inaccurate alignment and slight shaking during the measurement process may affect the final evaluation of the alignment deviation. In addition, since the output shaft of the ship power plant is often in a complex and compact mechanical structure, it is easy to generate friction with surrounding components during direct measurement. This not only may interfere with the measurement results due to heat generated by friction, but also may accelerate component wear and affect the overall performance of the power plant.

[0004] Furthermore, when traditional monitoring devices fix the power plant to be measured, they often lack flexibility and adaptability, and are difficult to cope with output shafts of different heights or sizes, which limits the versatility and practicality of the monitoring devices. At the same time, during the long-term operation monitoring process, the power plant to be measured may generate small displacements due to vibration or load changes. If this displacement is not controlled in a timely and effective manner, it will directly affect the accuracy of the monitoring results.

[0005] In addition, existing monitoring devices usually lack an accurate stop mechanism when controlling the measurement process, resulting in the power plant or measurement components being damaged due to excessive movement after reaching the predetermined position, or affecting the measurement accuracy due to position deviation. This monitoring process lacking instant feedback and precise control undoubtedly increases the uncertainty of the monitoring results. Therefore, we provide a device for monitoring the alignment deviation of a ship power plant. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems raised in the above background art, and to propose a device for monitoring the alignment deviation of a ship power plant.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A device for monitoring the alignment deviation of a ship power plant, comprising a workbench and a vertical fixing frame fixedly installed on the workbench. A horizontal fixing rod is fixedly connected to the surface of the vertical fixing frame. A sliding sleeve block is slidably sleeved on the periphery of the horizontal fixing rod. An installation box is fixedly installed on the front surface of the sliding sleeve block. A laser rangefinder is fixedly installed in the installation box. A pushing structure and a clamping component are respectively connected to the workbench; An alignment component is installed on the side of the laser rangefinder;

[0009] The pushing structure includes a rectangular groove opened on the upper surface of the workbench. A guiding chute is horizontally opened on the inner side wall of the rectangular groove. A guiding slider is slidably connected to the inner wall of the guiding chute. A moving plate is fixedly connected between the two guiding sliders. A hydraulic cylinder is fixedly installed on the workbench, and the output end of the hydraulic cylinder is fixedly connected to one end surface of the moving plate. The upper surface of the moving plate is placed with a power device to be measured. A limiting strip is fixedly welded on the upper surface of the moving plate to limit the backward movement of the power device to be measured;

[0010] The clamping component includes a fixing plate fixedly installed on the upper surface of the workbench. A guiding slide rod is fixedly connected to the surface of the fixing plate. A threaded rod is rotatably connected to the surface of the fixing plate through a bearing. An installation plate is slidably sleeved on the periphery of the guiding slide rod. A threaded cylinder is fixedly installed on the surface of the installation plate, and the threaded cylinder is threadedly sleeved on the periphery of the threaded rod. A rubber roller is fixedly installed on the surface of the installation plate to roll and clamp the power device to be measured and limit its upward movement;

[0011] The alignment component includes a Z-shaped plate fixedly connected to the side of the laser rangefinder. A rectangular through groove one is opened on the surface of the Z-shaped plate. A movable plate is slidably connected to the inner wall of the rectangular through groove one. The movable plate is rotatably connected to a shaft rotating rod through a bearing. A rotating disk is fixedly connected to the end of the shaft rotating rod to rotate synchronously with the output shaft of the power device to be measured;

[0012] A power transmission mechanism is connected between the workbench, the Z-shaped plate and the threaded rod.

[0013] Preferably, the power transmission mechanism includes a connecting rod fixedly installed at the lower end of the Z-shaped plate and a bearing seat fixedly installed on the lower surface of the workbench. A rectangular through groove two is horizontally opened on the inner bottom wall of the rectangular groove for the connecting rod to pass through. A toothed plate is fixedly installed at the lower end of the connecting rod. The workbench is rotatably connected to a rotating rod through the bearing seat. A gear disk is fixedly connected to the periphery of the rotating rod. A belt pulley one is fixedly connected to the end of the rotating rod. A belt pulley two is fixedly connected to one end of the threaded rod. A linkage belt is wound around the peripheries of the belt pulley one and the belt pulley two. A strip-shaped through groove two is opened on the surface of the workbench for the linkage belt to pass through;

[0014] A reset component is connected between the workbench and the overlapping plate;

[0015] A timely stop structure is connected between the workbench, the hydraulic cylinder and the overlapping plate.

[0016] Preferably, the reset assembly includes an adapter block fixedly connected to the lower surface of the workbench. A overlapping rod is fixedly connected between the two adapter blocks, and the overlapping rod is inserted into the overlapping plate. A first spring is sleeved around the overlapping rod for pulling back the overlapping plate and resetting it to its initial position.

[0017] Preferably, the timely stop structure includes a fixed block fixedly installed on the lower surface of the workbench. A stop button is fixedly installed on the fixed block. A touch rod is fixedly connected to the surface of the overlapping plate opposite to the fixed block for touching the stop button to achieve rapid stop of the hydraulic cylinder. A clamping block is fixedly installed at the lower end of the workbench. The workbench is fixedly installed with a first wire through the clamping block, and one end of the first wire is electrically connected to the stop button and the other end is electrically connected to the hydraulic cylinder.

[0018] Preferably, a strip-shaped through groove 1 is vertically opened on the inner side wall of the rectangular through groove 1. A torsion screw is threadedly connected to the side of the movable plate, and the threaded section of the torsion screw passes through the strip-shaped through groove 1, and the nut section contacts the side of the Z-shaped plate to form a strong frictional force.

[0019] Preferably, a second spring is sleeved around the horizontal fixing rod, and one end of the second spring is fixedly connected to the surface of the vertical fixing frame, and the other end is fixedly connected to the surface of the sliding sleeve block opposite to the vertical fixing frame for pushing the sliding sleeve block and resetting the laser rangefinder to its initial position.

[0020] Preferably, a storage battery is fixedly installed on the back of the installation box. A second wire is electrically connected between the storage battery and the laser rangefinder for supplying power to the laser rangefinder.

[0021] Preferably, the gear disc is meshed with the toothed plate for driving the rotating rod to rotate by the gear disc when the toothed plate moves.

[0022] Preferably, one end of the first spring is fixedly connected to the surface of one of the adapter blocks, and the other end of the first spring is fixedly connected to the surface of the overlapping plate.

[0023] Compared with the prior art, the present invention provides a device for monitoring the alignment deviation of a ship power plant, having the following beneficial effects:

[0024] 1. The device for monitoring the alignment deviation of a ship power plant can always align the periphery of the end of the output shaft of the power plant to be measured through the alignment component, thus avoiding the inaccuracy caused by manual adjustment. During this period, with the cooperation of the rotating disk, the output shaft of the power plant to be measured will not rub against the Z-shaped plate. First, it avoids the inaccurate monitoring results caused by heat generated by friction. Second, it avoids the loss caused by friction. Finally, with the cooperation of the first strip-shaped through groove and the torsion fixing screw, it can be adjusted to adapt to use when the heights of the output shafts of the power plants to be measured are different.

[0025] 2. The device for monitoring the alignment deviation of a ship power plant can make the rotating rod rotate by the cooperation of the Z-shaped plate, the toothed plate and the gear disk during the process of being pushed by setting the clamping component and the power transmission mechanism, so as to realize the rotation of the belt pulley II driving the threaded rod, and achieve the movement of the rubber roller to clamp the power plant to be measured, thus avoiding the upward movement of the power plant to be measured during the later operation monitoring, and further improving the accuracy of the monitoring results.

[0026] 3. The device for monitoring the alignment deviation of a ship power plant can timely stop the thrust of the hydraulic cylinder after the Z-shaped plate moves to the specified position by setting the timely stop structure, avoiding the inaccurate monitoring results caused by the excessive movement and deformation of the Z-shaped plate caused by the untimely stop of the hydraulic cylinder or the damage of the output shaft of the power plant to be measured, and strengthening the accuracy of the monitoring once again. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The first three-dimensional view of a device for monitoring the alignment deviation of a ship power plant proposed by the present invention;

[0028] Figure 2 The second three-dimensional view of a device for monitoring the alignment deviation of a ship power plant proposed by the present invention;

[0029] Figure 3 The structural schematic diagram of the power plant to be measured after being detached from a device for monitoring the alignment deviation of a ship power plant proposed by the present invention;

[0030] Figure 4 The structural schematic diagram of the alignment component in a device for monitoring the alignment deviation of a ship power plant proposed by the present invention;

[0031] Figure 5 The structural schematic diagram of the clamping component in a device for monitoring the alignment deviation of a ship power plant proposed by the present invention;

[0032] Figure 6 A device for monitoring the alignment deviation of a ship power plant proposed by the present invention Figure 2 The enlarged structural view of part A in

[0033] Figure 7 A device for monitoring the alignment deviation of a ship power plant proposed by the present invention Figure 3 An enlarged view of the structure at B in the figure.

[0034] In the figure: 1, workbench; 2, vertical fixing frame; 3, horizontal fixing rod; 4, sliding sleeve block; 5, installation box; 6, laser rangefinder; 7, rectangular groove; 8, guide chute; 9, guide slider; 10, moving plate; 11, hydraulic cylinder; 12, limit strip; 13, power plant to be measured; 14, Z-shaped plate; 15, rectangular through groove one; 16, movable plate; 17, shaft rotating rod; 18, rotating disc; 19, strip-shaped through groove one; 20, torsion fixing screw; 21, fixing plate; 22, guide sliding rod; 23, threaded rod; 24, mounting plate; 25, threaded cylinder; 26, rubber roller; 27, rectangular through groove two; 28, connecting rod; 29, tooth clamping plate; 30, bearing seat; 31, rotating rod; 32, gear disc; 33, strip-shaped through groove two; 34, belt pulley one; 35, belt pulley two; 36, linkage belt; 37, overlapping plate; 38, fixed block; 39, stop button; 40, touch pressure rod; 41, clamping block; 42, wire one; 43, connecting block; 44, overlapping rod; 45, spring one; 46, spring two; 47, storage battery; 48, wire two. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0037] Refer to Figures 1-7, a device for monitoring the alignment deviation of a ship power plant. The main body of the device consists of a workbench 1 and a vertical fixing frame 2. The vertical fixing frame 2 is fixedly installed on the workbench 1, and a horizontal fixing rod 3 is horizontally fixedly connected to the surface of the vertical fixing frame 2. A sliding sleeve block 4 is slidably sleeved around the horizontal fixing rod 3, an installation box 5 is fixedly installed on the front surface of the sliding sleeve block 4, and a laser rangefinder 6 is fixedly installed in the installation box 5. On the workbench 1, a pushing structure and a clamping component are provided. The pushing structure includes a rectangular groove 7 opened on the upper surface of the workbench 1, a guiding chute 8 is horizontally opened on the inner sidewall of the rectangular groove 7, a guiding slider 9 is slidably connected to the inner wall of the guiding chute 8, and the two guiding sliders 9 are fixedly connected by a moving plate 10. A hydraulic cylinder 11 is fixedly installed on the workbench 1, and its output end is fixedly connected to one end surface of the moving plate 10. The power device 13 to be measured is placed on the upper surface of the moving plate 10, and a limiting strip 12 is fixedly welded on the upper surface of the moving plate 10 to limit the backward movement of the power device 13 to be measured. The clamping component includes a fixing plate 21 fixedly installed on the upper surface of the workbench 1, a guiding rod 22 is fixedly connected to the surface of the fixing plate 21, and a threaded rod 23 is rotatably connected to the surface of the fixing plate 21 through a bearing. An installation plate 24 is slidably sleeved around the guiding rod 22, a threaded cylinder 25 is fixedly installed on the surface of the installation plate 24 and is threadedly sleeved around the threaded rod 23. A rubber roller 26 is fixedly installed on the surface of the installation plate 24 to roll and clamp the power device 13 to be measured and limit its upward movement. An alignment component is installed on the side of the laser rangefinder 6. The alignment component includes a Z-shaped plate 14 fixedly connected to the side of the laser rangefinder 6, a rectangular through groove one 15 is opened on the surface of the Z-shaped plate 14, and a movable plate 16 is slidably connected to the inner wall of the rectangular through groove one 15. A shaft rotating rod 17 is rotatably connected to the movable plate 16 through a bearing, and a rotating disc 18 is fixedly connected to the end of the shaft rotating rod 17 to rotate synchronously with the output shaft of the power device 13 to be measured. In addition, a power transmission mechanism is also connected between the workbench 1, the Z-shaped plate 14 and the threaded rod 23 to realize the function of driving the threaded rod 23 to rotate when the Z-shaped plate 14 moves.

[0038] Referring to Figures 1-7 , the power transmission mechanism includes a connecting rod 28 fixedly installed at the lower end of the Z-shaped plate 14 and a bearing seat 30 fixedly installed on the lower surface of the workbench 1. A rectangular through groove two 27 is horizontally opened on the inner bottom wall of the rectangular groove 7 for the connecting rod 28 to pass through. A toothed plate 29 is fixedly installed at the lower end of the connecting rod 28, a rotating rod 31 is rotatably connected to the workbench 1 through a bearing and is fixedly connected to its periphery through a gear disc 32. A belt pulley one 34 is fixedly connected to the end of the rotating rod 31, and a belt pulley two 35 is fixedly connected to one end of the threaded rod 23. A linkage belt 36 is wound around the belt pulley one 34 and the belt pulley two 35, and a strip-shaped through groove two 33 is opened on the surface of the workbench 1 for the linkage belt 36 to pass through.

[0039] In the present invention, a reset component is further connected between the workbench 1 and the overlapping plate 37 for pulling back the overlapping plate 37 and resetting it to its initial position. A timely stop structure is also connected between the workbench 1, the hydraulic cylinder 11 and the overlapping plate 37 for timely stopping the thrust of the hydraulic cylinder 11 after the Z-shaped plate 14 moves to a specified position; and the designed outer diameter of 28 is adapted to the opening width of 27, so as to prevent the rotation of 14 and 6, ensuring that 6 can only move horizontally and achieving better alignment accuracy; through the cooperation of the power transmission mechanism, the reset component and the timely stop structure, the present invention realizes the rotation of the threaded rod 23 when the Z-shaped plate 14 moves, and further realizes the rolling clamping function of the rubber roller 26 on the power device 13 to be measured, while ensuring that the hydraulic cylinder 11 stops thrust in time after the Z-shaped plate 14 moves to a specified position, avoiding deformation or damage caused by excessive movement.

[0040] Referring to Figures 1-7 , the reset component includes an engagement block 43 fixedly connected to the lower surface of the workbench 1. The two engagement blocks 43 are fixedly connected by an overlapping rod 44, and the overlapping rod 44 is inserted into the overlapping plate 37. A first spring 45 is sleeved around the overlapping rod 44 for pulling back the overlapping plate 37 and resetting it to its initial position.

[0041] In the present invention, through the setting of the reset component, the function that the overlapping plate 37 can automatically reset to its initial position after being acted by an external force is realized, ensuring the stability and reliability of the device.

[0042] Referring to Figures 1-7 , the timely stop structure includes a fixed block 38 fixedly installed on the lower surface of the workbench 1. A stop button 39 is fixedly installed on the fixed block 38. A touch pressure rod 40 is fixedly connected to the surface of the overlapping plate 37 opposite to the fixed block 38 for touching the stop button 39 to realize the rapid stop of the hydraulic cylinder 11. A clamping block 41 is fixedly installed at the lower end of the workbench 1, and a first wire 42 is fixedly installed on the workbench 1 through the clamping block 41. One end of it is electrically connected to the stop button 39, and the other end is electrically connected to the hydraulic cylinder 11.

[0043] In the present invention, through the setting of the timely stop structure, the function of timely stopping the thrust of the hydraulic cylinder 11 after the Z-shaped plate 14 moves to a specified position is realized, avoiding deformation or damage caused by excessive movement, and further improving the accuracy of the monitoring results.

[0044] Referring to Figures 1-7 , a strip-shaped through groove 19 is vertically opened on the inner side wall of the rectangular through groove 15. A torsion fixing screw 20 is threadedly connected to the side of the movable plate 16, and the threaded section of the torsion fixing screw 20 passes through the strip-shaped through groove 19, and the nut section contacts the side of the Z-shaped plate 14 and forms a strong frictional force.

[0045] In the present invention, through the cooperation of the strip-shaped through groove 19 and the torsion fixing screw 20, the function of adapting to the use when the heights of the output shafts of the power device 13 to be measured are different is realized, ensuring that the laser rangefinder 6 can always be aligned with the output shaft of the power device 13 to be measured for monitoring.

[0046] Referring to Figures 1-7 , a second spring 46 is sleeved around the periphery of the horizontal fixing rod 3, and one end of the second spring 46 is fixedly connected to the surface of the vertical fixing frame 2, and the other end is fixedly connected to the surface of the sliding sleeve block 4 opposite to the vertical fixing frame 2.

[0047] In the present invention, through the arrangement of the second spring 46, the present invention realizes the function of automatically resetting to the initial position after the laser rangefinder 6 completes the monitoring, improving the automation degree and use efficiency of the device.

[0048] Referring to Figures 1-7 , a storage battery 47 is fixedly installed on the back surface of the installation box 5, and the storage battery 47 and the laser rangefinder 6 are electrically connected through a second wire 48; the gear disk 32 is meshed with the tooth plate 29 to drive the rotating rod 31 to rotate when the tooth plate 29 moves; one end of the first spring 45 is fixedly connected to the surface of a connecting block 43, and the other end is fixedly connected to the surface of the overlapping plate 37.

[0049] In the present invention, through the cooperation of the storage battery 47 and the second wire 48, the function of providing a stable power supply for the laser rangefinder 6 is realized, ensuring the continuity and accuracy of the monitoring process; through the meshing connection between the gear disk 32 and the tooth plate 29, the function of driving the threaded rod 23 to rotate when the Z-shaped plate 14 moves is realized, providing a power source for the rubber roller 26 to clamp the power device 13 to be measured; through the connection mode of the first spring 45, the function of automatically resetting the overlapping plate 37 to the initial position after being acted by an external force is realized, ensuring the stability and reliability of the device.

[0050] The working principle of the present invention is as follows: the power device 13 to be tested is placed on the movable plate 10 to ensure that it is in contact with the limit bar 12 and is restricted; according to the height of the output shaft of the power device 13 to be tested, the position of the movable plate 16 in the rectangular through groove 15 is adjusted and fixed by tightening the screws 20. Ensure that the rotating disk 18 is coaxial with the output shaft of the power device 13 to be tested and can rotate synchronously therewith; start the hydraulic cylinder 11, and its output end pushes the moving plate 10 to slide along the rectangular groove 7 and the guide groove 8 until the power device 13 to be tested reaches the monitoring position; during the sliding process of the moving plate 10, the Z-plate 14 moves down accordingly, and the connecting rod 28 drives the tooth plate 29 to move; the tooth plate 29 engages with the gear plate 32 to drive the rotating rod 31 to rotate; the rotating rod 31 is driven by the belt pulley 1 34, the linkage belt 36 and the belt pulley 2 35 to rotate the threaded rod 23; when the threaded rod 23 rotates, the mounting plate 24 slides along the guide slide rod 22, and the rubber roller 26 clamps the power device 13 to be tested to prevent it from moving upward; when the Z-plate 14 moves to the specified position, the lap plate 37 The contact rod 40 on the upper part contacts the stop button 39; the stop button 39 sends a stop signal to the hydraulic cylinder 11 through the wire 1 42, and the hydraulic cylinder 11 stops working to prevent the Z-type plate 14 from moving excessively; the laser rangefinder 6 is powered by the battery 47, and emits a laser beam to aim at the output shaft of the power device 13 to be tested; the rotating disk 18 rotates synchronously with the output shaft of the power device 13 to be tested to ensure that the laser beam is always aimed at the output shaft; the laser rangefinder 6 measures the distance between the laser beam and the output shaft, and calculates the centering deviation based on the measurement result; after the monitoring is completed, the power supply of the laser rangefinder 6 is turned off; the spring 1 45 pulls back the overlap plate 37 through the overlap rod 44 to reset it to the initial position; the spring 2 46 pushes the sliding sleeve 4 to slide along the transverse fixing rod 3 to reset the laser rangefinder 6 to the initial position.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for monitoring centering deviation of a ship power plant, comprising a workbench (1) and a vertical fixing frame (2) fixedly mounted on the workbench (1), wherein a transverse fixing rod (3) is transversely fixedly connected to the surface of the vertical fixing frame (2), a sliding sleeve block (4) is slidably sleeved on the periphery of the transverse fixing rod (3), a mounting box (5) is fixedly mounted on the front of the sliding sleeve block (4), and a laser rangefinder (6) is fixedly mounted in the mounting box (5), wherein the laser rangefinder (6) is fixedly mounted in the mounting box (5), characterized in that: The workbench (1) is respectively connected with a pushing structure and a clamping component; an alignment component is installed on the side of the laser rangefinder (6); The push structure comprises a rectangular groove (7) provided on the upper end surface of the workbench (1), a guide groove (8) being provided transversely on the inner side wall of the rectangular groove (7), a guide slide block (9) being slidably connected to the inner wall of the guide slide block (8), a movable plate (10) being fixedly connected between two guide slide blocks (9), a hydraulic cylinder (11) being fixedly mounted on the workbench (1), and an output end of the hydraulic cylinder (11) being fixedly connected to one end surface of the movable plate (10), a power device (13) to be tested being placed on the upper end surface of the movable plate (10), and a limit strip (12) being fixedly welded to the upper end surface of the movable plate (10) for limiting the return movement of the power device (13) to be tested; The clamping component comprises a fixing plate (21) fixedly mounted on the upper end surface of the workbench (1), the surface of the fixing plate (21) being fixedly connected to a guide slide rod (22), the surface of the fixing plate (21) being rotatably connected to a threaded rod (23) via a bearing, the periphery of the guide slide rod (22) being slidably sleeved with a mounting plate (24), the surface of the mounting plate (24) being fixedly mounted with a threaded cylinder (25), and the threaded cylinder (25) being threadedly sleeved on the periphery of the threaded rod (23), and the surface of the mounting plate (24) being fixedly mounted with a rubber roller (26) for rolling and clamping the power device (13) to be tested and limiting its upward movement; The alignment assembly comprises a Z-shaped plate (14) fixedly connected to the side of the laser rangefinder (6), the surface of the Z-shaped plate (14) is provided with a rectangular through groove (15), the inner wall of the rectangular through groove (15) is slidably connected with a movable plate (16), the movable plate (16) is rotatably connected with a shaft rotating rod (17) through a bearing, and the end of the shaft rotating rod (17) is fixedly connected with a rotating disk (18) for following the synchronous rotation of the output shaft of the power device (13) to be measured; A power transmission mechanism is connected between the workbench (1), the Z-shaped plate (14) and the threaded rod (23).

2. A device for monitoring centering deviation of a ship power plant according to claim 1, characterized in that: The power transmission mechanism comprises a connecting rod (28) fixedly mounted on the lower end of the Z-shaped plate (14) and a bearing seat (30) fixedly mounted on the lower end surface of the workbench (1); the inner bottom wall of the rectangular groove (7) is transversely provided with a rectangular through groove (27) for the connecting rod (28) to pass through; a toothed plate (29) is fixedly mounted on the lower end of the connecting rod (28); the workbench (1) is rotatably connected to a rotating rod (31) through the bearing seat (30); a gear plate (32) is fixedly connected to the periphery of the rotating rod (31); a belt pulley (34) is fixedly connected to the end of the rotating rod (31); one end of the threaded rod (23) is fixedly connected to a belt pulley (35); a linkage belt (36) is wound around the peripheries of the belt pulley (34) and the belt pulley (35); and a strip through groove (33) is provided on the surface of the workbench (1) for the linkage belt (36) to pass through. A reset component is connected between the workbench (1) and the lap plate (37); An instant stop structure is connected between the workbench (1), the hydraulic cylinder (11) and the lap plate (37).

3. A device for monitoring centering deviation of a ship power plant according to claim 2, characterized in that: The reset assembly comprises a connecting block (43) fixedly connected to the lower end surface of the workbench (1), a lap rod (44) fixedly connected between the two connecting blocks (43), and the lap rod (44) is inserted on the lap plate (37), and a spring (45) is sleeved on the outer periphery of the lap rod (44) for pulling back the lap plate (37) and restoring it to its initial position.

4. A device for monitoring centering deviation of a ship power plant according to claim 2, characterized in that: The timely stop structure comprises a fixed block (38) fixedly mounted on the lower end surface of the workbench (1), a stop button (39) fixedly mounted on the fixed block (38), a pressure rod (40) fixedly connected to the surface of the lap plate (37) relative to the fixed block (38) for pressing the stop button (39) to achieve rapid stopping of the hydraulic cylinder (11), a clamping block (41) fixedly mounted on the lower end of the workbench (1), a wire (42) fixedly mounted on the workbench (1) via the clamping block (41), one end of the wire (42) being electrically connected to the stop button (39), and the other end being electrically connected to the hydraulic cylinder (11).

5. The device for monitoring centering deviation of a ship power plant according to claim 1, characterized in that: The inner side wall of the rectangular through groove (15) is vertically provided with a strip through groove (19), and the side edge of the movable plate (16) is threadedly connected with a fixing screw (20), and the threaded section of the fixing screw (20) passes through the strip through groove (19), and the nut section contacts the side edge of the Z-shaped plate (14) to form a strong friction force.

6. The device for monitoring centering deviation of a ship power plant according to claim 1, characterized in that: The outer periphery of the transverse fixing rod (3) is provided with a second spring (46), one end of which is fixedly connected to the surface of the vertical fixing frame (2), and the other end of which is fixedly connected to the surface of the sliding sleeve block (4) opposite to the vertical fixing frame (2), so as to push the sliding sleeve block (4) and reset the laser rangefinder (6) to an initial position.

7. The device for monitoring centering deviation of a ship power plant according to claim 1, characterized in that: A storage battery (47) is fixedly mounted on the back of the installation box (5), and a second wire (48) is electrically connected between the storage battery (47) and the laser rangefinder (6) for providing power to the laser rangefinder (6).

8. The device for monitoring centering deviation of a ship power plant according to claim 2, characterized in that: The gear plate (32) is meshedly connected with the latch plate (29) so as to allow the gear plate (32) to drive the rotating rod (31) to rotate during the movement of the latch plate (29).

9. The device for monitoring centering deviation of a ship power plant according to claim 3, characterized in that: One end of the spring one (45) is fixedly connected to the surface of a connecting block (43), and the other end of the spring one (45) is fixedly connected to the surface of the lap plate (37).

Images