Rapid positioning device for ship shafting

Abstract

The utility model provides a quick positioning device for a ship shafting, which comprises a bearing component, a positioning component and a positioning component. The measuring assembly is arranged on the bearing assembly, the measuring assembly determines the position of the target cross section on the ship shafting by taking the flange end face as a reference, and through the design of the measuring assembly, the position of the target cross section 950 mm away from the flange end face can be conveniently, rapidly and accurately found through the measuring assembly in the process of measuring the position of the target cross section; errors generated by a transmission measurement mode are reduced, and the problem that in the prior art, when a worker uses a tape for manual measurement, the absolute level of a tape body cannot be kept, and the axial reference offset exceeds + / -2-3 mm is solved.

Description

Technical Field

[0001] This utility model relates to the field of ship measurement technology, specifically to a rapid positioning device for ship shafting. Background Technology

[0002] In measuring the load of a ship's main engine shafting, a measurement cross-section is required at 950mm from the flange end face. However, due to the insufficient positioning accuracy of current measuring tools, the main issues are displacement control deviations caused by human error and environmental interference. For example, the traditional jacking method requires manual operation of the hydraulic pump and visual observation of the dial gauge reading. When positioning at 950mm from the flange end, the repeatability measurement error of a displacement of 0.01mm can reach ±0.03mm. In actual operation, workers cannot maintain the absolute level of the measuring tape when measuring manually. Actual measurement data shows that the tilt angle of the measuring tape fluctuates by ±5° under a 30N pulling force, resulting in an axial reference offset of over ±2-3mm. This geometric deviation directly affects the mechanical transmission path of the jacking force, causing a systematic error of about 17% in the subsequent load adjustment value.

[0003] Therefore, existing technologies need further development. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a quick positioning device for ship shafting, so as to solve the technical problem in the related technology that workers cannot keep the tape measure absolutely horizontal when using it for manual measurement, resulting in an axial reference offset of more than ±2-3mm.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a rapid positioning device for ship shafting is provided, comprising: a bearing component, which is movably mounted on the ship shafting; and a measuring component, which is mounted on the bearing component and uses the flange end face as a reference to determine the position of the target cross section on the ship shafting.

[0006] Furthermore, the measuring component includes a rangefinder, which is mounted on top of the bearing assembly with its output end facing the flange end face. Based on the measurement data acquired by the rangefinder, the position of the bearing assembly relative to the ship shafting is adjusted along the axial direction of the ship shafting to determine the position of the target cross-section on the ship shafting.

[0007] Furthermore, the measuring component also includes: a level, which is mounted on top of the support component and spaced apart from the rangefinder; the level is used to detect the horizontal state of the measuring component relative to the ship's shafting; and a laser aligner, which is mounted on the support component and spaced apart from the rangefinder in the vertical direction; the output end of the laser aligner faces the ship's shafting and is used to mark the highest point of the ship's shafting. When it is necessary to locate the highest point of the ship's shafting, the position of the support component relative to the ship's shafting is adjusted along the circumferential direction of the ship's shafting based on the level's detection result, so that the laser aligner is in a horizontal state; and a light spot is projected onto the surface of the ship's shafting through the laser aligner to locate the highest point of the ship's shafting.

[0008] Further, the supporting components include: two support plates, which are spaced apart along the axial direction of the ship's shafting, each support plate having an arc-shaped groove on its side facing the ship's shafting, and the two support plates being movably mounted on the ship's shafting relative to the arc-shaped grooves; a first mounting plate, which is detachably connected to each of the two support plates, with the extension direction of the first mounting plate perpendicular to the extension direction of the support plates, and a rangefinder and a level mounted on the first mounting plate; a second mounting plate, which is detachably connected to each of the two support plates, which is spaced apart from the first mounting plate along the extension direction of the support plates, and the second mounting plate is located below the first mounting plate; a measuring hole is formed on the second mounting plate; a laser aligner is mounted on the second mounting plate, with the output end of the laser aligner facing the measuring hole, so that the light spot projected by the output end of the laser aligner passes through the measuring hole and is projected onto the ship's shafting.

[0009] Furthermore, the ship shafting quick positioning device also includes: a quick positioning component, which includes: a rotating part connected to at least part of the bearing component, the rotating part being movably mounted on the ship shafting; and a counterweight disposed on the side of the rotating part away from the bearing component, the weight of the counterweight being greater than the total weight of the bearing component and the measuring component.

[0010] Furthermore, the load-bearing component has two support plates, and the rotating part includes: two first arc-shaped plates, which are arranged one-to-one with the two support plates and are respectively connected to the corresponding support plates, and the two first arc-shaped plates extend along a first arc-shaped trajectory; two second arc-shaped plates, which extend along a second arc-shaped trajectory; each second arc-shaped plate is arranged one-to-one with each first arc-shaped plate, and each second arc-shaped plate is arranged opposite to the corresponding first arc-shaped plate; each second arc-shaped plate forms an annular structure with the corresponding first arc-shaped plate, so as to be movably fitted onto the ship shafting through the annular structure.

[0011] Beneficial effects:

[0012] 1. The design of the measuring component facilitates the quick and accurate location of the target cross-section 950mm from the flange end face during the measurement process, thereby reducing the error generated by the transmission measurement method. This solves the problem in related technologies where workers cannot keep the tape measure absolutely horizontal when measuring manually, resulting in an axial reference offset exceeding ±2-3mm.

[0013] 2. Through the design of the level and laser alignment device, when it is necessary to measure the highest point of the ship's shafting, the position of the bearing component on the ship's shafting is adjusted according to the level to ensure that the position of the laser alignment device remains horizontal. Then, the laser alignment device projects a light spot onto the surface of the ship's shafting to locate the highest point of the ship's shafting. The highest point is marked with cross coordinates using a marker pen for the next measurement process.

[0014] 3. Through the design of the rotating part and the counterweight, when measuring the highest point of the ship's shafting, the rotating part is fitted onto the ship's shafting, and the counterweight is positioned at the lowest point of the ship's shafting under the action of gravity. At this time, the load-bearing component corresponding to the position of the counterweight is naturally at the highest point of the ship's shafting, reducing the adjustment time for staff and improving measurement efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a ship shafting rapid positioning device used in an embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the bearing component and measuring component of a ship shafting rapid positioning device used in an embodiment of this utility model.

[0017] The above figures include the following reference numerals:

[0018] 1. Load-bearing component; 2. Measuring component; 3. Rangefinder; 4. Level; 5. Laser alignment device; 6. Support plate; 7. Arc groove; 8. First mounting plate; 9. Second mounting plate; 11. Quick positioning component; 12. Rotating part; 13. Counterweight; 14. First arc plate; 15. Second arc plate. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] According to an embodiment of this utility model, a rapid positioning device for ship shafting is provided. Please refer to [link / reference]. Figures 1 to 2 It includes: a bearing assembly 1, which is movably mounted on the ship shafting; and a measuring assembly 2, which is mounted on the bearing assembly 1 and uses the flange end face as a reference to determine the position of the target cross section on the ship shafting.

[0021] The target cross section is the measurement cross section established on the ship's shafting at a distance of 950 mm from the flange end face.

[0022] By adopting the above technical solution and through the design of the measuring component 2, it is easy to quickly and accurately find the position of the target cross-section 950mm away from the flange end face during the measurement of the target cross-section position. This reduces the error generated by the transmission measurement method and solves the problem in related technologies where workers cannot keep the tape measure absolutely horizontal when using it for manual measurement, resulting in an axial reference offset of more than ±2-3mm.

[0023] Please refer to Figure 1 and Figure 2 The measuring component 2 includes a rangefinder 3, which is mounted on top of the bearing component 1. The output end of the rangefinder 3 faces the flange end face. Based on the measurement data obtained by the rangefinder 3, the bearing component 1 is adjusted relative to the ship shafting along the axial direction of the ship shafting to determine the position of the target cross section on the ship shafting.

[0024] By adopting the above technical solution and through the design of the rangefinder 3, it is convenient to quickly read the value on the rangefinder 3 by projecting the laser of the rangefinder 3 on the flange end face at 950mm away from the target cross-section during the measurement process, and to adjust the distance. This improves the measurement accuracy and speed.

[0025] Please refer to Figure 2 The measuring component 2 also includes: a level 4, which is disposed on top of the bearing component 1 and spaced apart from the rangefinder 3; the level 4 is used to detect the horizontal state of the measuring component 2 relative to the ship's shafting; and a laser aligner 5, which is disposed on the bearing component 1 and spaced apart from the rangefinder 3 in the vertical direction. The output end of the laser aligner 5 faces the ship's shafting and is used to mark the highest point of the ship's shafting. When it is necessary to locate the highest point of the ship's shafting, the position of the bearing component 1 relative to the ship's shafting is adjusted along the circumferential direction of the ship's shafting according to the detection result of the level 4, so that the laser aligner 5 is in a horizontal state. The laser aligner 5 projects a light spot onto the surface of the ship's shafting to locate the highest point of the ship's shafting.

[0026] By adopting the above technical solution, and through the design of the level 4 and the laser alignment device 5, when it is necessary to measure the highest point of the ship's shafting, the position of the bearing component 1 on the ship's shafting is adjusted according to the level 4 to ensure that the position of the laser alignment device 5 remains horizontal. Then, the laser alignment device 5 projects a light spot onto the surface of the ship's shafting to locate the highest point of the ship's shafting. The highest point is marked with cross coordinates using a marker pen for the next measurement process.

[0027] Please refer to Figure 2 The supporting component 1 includes: two support plates 6, which are spaced apart along the axis of the ship's shafting. Each support plate 6 has an arc-shaped groove 7 on its side facing the ship's shafting. The two support plates 6 are movably mounted on the ship's shafting via the arc-shaped groove 7. A first mounting plate 8 is detachably connected to each of the two support plates 6. The extension direction of the first mounting plate 8 is perpendicular to the extension direction of the support plates 6. A rangefinder 3 and a level 4 are both mounted on the first mounting plate 8. A second mounting plate 9 is detachably connected to each of the two support plates 6. The second mounting plate 9 and the first mounting plate 8 are spaced apart along the extension direction of the support plates 6, and the second mounting plate 9 is located below the first mounting plate 8. A measuring hole is provided on the second mounting plate 9. A laser aligner 5 is mounted on the second mounting plate 9. The output end of the laser aligner 5 is positioned opposite the measuring hole so that the light spot projected by the output end of the laser aligner 5 passes through the measuring hole and is projected onto the ship's shafting.

[0028] By adopting the above technical solution, it is easy to integrate the rangefinder 3, the level 4 and the laser alignment device 5 on the bearing component 1 at the same time, so that the ship shafting rapid positioning device can measure multiple targets and has good practicality.

[0029] Please refer to Figure 1 The ship shafting quick positioning device further includes: a quick positioning component 11, which includes: a rotating part 12, which is at least partially connected to the bearing component 1 and is movably sleeved on the ship shafting; and a counterweight 13, which is disposed on the side of the rotating part 12 away from the bearing component 1 and has a weight greater than the total weight of the bearing component 1 and the measuring component 2.

[0030] By adopting the above technical solution, through the design of the rotating part 12 and the counterweight 13, when measuring the highest point of the ship's shafting, the rotating part 12 is sleeved on the ship's shafting, and the counterweight 13 is ensured to be located at the lowest point of the ship's shafting under the action of gravity. At this time, the bearing component 1 corresponding to the position of the counterweight 13 is naturally located at the highest point of the ship's shafting, reducing the adjustment time for staff and improving measurement efficiency.

[0031] Please refer to Figure 1 The bearing assembly 1 has two support plates 6, and the rotating part 12 includes: two first arc-shaped plates 14, which are arranged one-to-one with the two support plates 6 and are respectively connected to the corresponding support plates 6, and the two first arc-shaped plates 14 extend along a first arc-shaped trajectory; two second arc-shaped plates 15, which extend along a second arc-shaped trajectory; each second arc-shaped plate 15 is arranged one-to-one with each first arc-shaped plate 14, and each second arc-shaped plate 15 is arranged opposite to the corresponding first arc-shaped plate 14; each second arc-shaped plate 15 forms an annular structure with the corresponding first arc-shaped plate 14, so as to be movably fitted onto the ship shafting through the annular structure.

[0032] By adopting the above technical solution, each second arc plate 15 forms a ring structure with the corresponding first arc plate 14, so that it can be movably fitted on the ship shafting through the ring structure, which facilitates the movement of the counterweight 13 along the ship shafting. Under the action of gravity, it is located at the lowest point of the ship shafting, and then drives the measuring component 2 on the bearing component 1 to be located at the highest point, reducing the number of adjustments required by the staff and improving the efficiency of measurement.

[0033] Working principle:

[0034] In the process of measuring the position of the target cross section 950mm from the flange end face and locating the highest point of the ship's shafting, firstly, each of the second arc plates 15 and the corresponding first arc plates 14 are fitted onto the ship's shafting. Then, the rangefinder 3 is turned on, and each of the second arc plates 15 and the corresponding first arc plates 14 are moved to drive the two support plates 6 to move along the extension direction of the ship's shafting. Then, the position of the distance from the flange end face is measured by the rangefinder 3. After the measurement is completed, the counterweight 13 is rotated along the circumferential direction of the ship's shafting under the action of gravity until the counterweight 13 is located at the lowest point of the ship's shafting. At this time, the measuring component 2 is located at the highest point of the ship's shafting. Then, the level 4 is used to confirm that the measuring component 2 is located at the highest point of the ship's shafting. After confirming that the measuring component 2 is located at the highest point of the ship's shafting, the laser alignment device 5 is turned on to project a light spot onto the surface of the ship's shafting to locate the highest point of the ship's shafting. Then, the cross coordinates are marked.

[0035] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0036] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0037] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0038] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0039] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A quick positioning device for a marine shafting, characterized in that, The utility model relates to a kind of ship shafting positioning device, including: Bearing assembly (1), the bearing assembly (1) is movably arranged on the ship shafting; Measuring assembly (2), the measuring assembly (2) is arranged on the bearing assembly (1), and the measuring assembly (2) determines the position of target cross section on the ship shafting with flange end face as reference.

2. A quick positioning device for a marine shafting according to claim 1, characterized in that, The measuring assembly (2) includes: Distance meter (3), the distance meter (3) is arranged on the top of the bearing assembly (1), and the output end of the distance meter (3) is arranged towards the flange end face, to adjust the position of the bearing assembly (1) relative to the ship shafting along the axial direction of the ship shafting according to the measurement data obtained by the distance meter (3), to determine the position of the target cross section on the ship shafting.

3. A quick positioning device for a marine shafting according to claim 2, characterized in that, The measuring assembly (2) further includes: Level (4), the level (4) is arranged on the top of the bearing assembly (1), and the level (4) is arranged spaced apart from the distance meter (3), and the level (4) is used to detect the horizontal state of the measuring assembly (2) relative to the ship shafting; Laser aligner (5), the laser aligner (5) is arranged on the bearing assembly (1), and the laser aligner (5) is arranged spaced apart from the distance meter (3) in vertical direction, and the output end of the laser aligner (5) is arranged towards the ship shafting, and the laser aligner (5) is used to mark the highest point of the ship shafting; Wherein, when the highest point of the ship shafting needs to be positioned, the position of the bearing assembly (1) relative to the ship shafting is adjusted along the circumferential direction of the ship shafting according to the detection result of the level (4), so that the laser aligner (5) is in horizontal state, and the light spot is projected to the surface of the ship shafting by the laser aligner (5), to position the highest point of the ship shafting.

4. A quick positioning device for a marine shafting according to claim 3, characterized in that, The bearing assembly (1) includes: Two support plates (6), two support plates (6) are arranged spaced apart along the axial direction of the ship shafting, and the side of two support plates (6) towards the ship shafting is provided with arc-shaped groove (7), and two support plates (6) are movably arranged on the ship shafting relative to the arc-shaped groove (7); First mounting plate (8), the first mounting plate (8) is detachably connected with two support plates (6) respectively, and the extension direction of the first mounting plate (8) is perpendicular to the extension direction of the support plate (6), and the distance meter (3) and level (4) are mounted on the first mounting plate (8). A second mounting plate (9) is detachably connected with the two support plates (6) respectively, the second mounting plate (9) is arranged in a spaced manner with the first mounting plate (8) along the extension direction of the support plate (6), and the second mounting plate (9) is arranged below the first mounting plate (8); the second mounting plate (9) is provided with a measuring hole; the laser aligner (5) is mounted on the second mounting plate (9), and the output end of the laser aligner (5) is arranged in a spaced manner with the measuring hole, so that the light spot projected by the output end of the laser aligner (5) is projected to the ship shafting through the measuring hole.

5. The quick positioning device for a marine shafting according to claim 1, characterized in that, The ship shafting rapid positioning device further comprises a rapid positioning assembly (11), wherein the rapid positioning assembly (11) comprises: A rotating part (12) is movably sleeved on the ship shafting, and the rotating part (12) is connected with at least part of the bearing assembly (1); A counterweight (13) is arranged on the side of the rotating part (12) away from the bearing assembly (1), and the weight of the counterweight (13) is greater than the total weight of the bearing assembly (1) and the measuring assembly (2).

6. A quick positioning device for a marine shafting according to claim 5, characterized in that The bearing assembly (1) has two support plates (6), and the rotating part (12) comprises: Two first arc-shaped plates (14) are arranged in a one-to-one correspondence with the two support plates (6), the two first arc-shaped plates (14) are connected with the corresponding support plates (6) respectively, and the two first arc-shaped plates (14) extend along a first arc-shaped track; Two second arc-shaped plates (15) extend along a second arc-shaped track; each second arc-shaped plate (15) is arranged in a one-to-one correspondence with each first arc-shaped plate (14), and each second arc-shaped plate (15) is arranged in a spaced manner with the corresponding first arc-shaped plate (14); each second arc-shaped plate (15) and the corresponding first arc-shaped plate (14) form an annular structure, so that each second arc-shaped plate (15) and the corresponding first arc-shaped plate (14) are movably sleeved on the ship shafting through the annular structure.

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