Shafting cross coordinate positioning device

By using the shaft system cross coordinate positioning device, the positioning component and the collimation component are used to align the cross coordinates of the shaft system, which solves the problem that the center point of the jack does not coincide with the lowest point of the shaft system, and realizes the accuracy and rapid alignment of shaft system measurement.

CN224347675UActive Publication Date: 2026-06-12TIANJIN MARITIME VOCATIONAL COLLEGE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN MARITIME VOCATIONAL COLLEGE
Filing Date
2025-04-07
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

During shipbuilding and maintenance, it is difficult to precisely adjust the position of each part of the shafting system, which causes the center point of the jack to not coincide with the lowest point of the shafting system, resulting in an eccentric torque and affecting the accuracy of measurement.

Method used

A shaft system cross coordinate positioning device is designed, including a positioning component and a collimation component. The positioning pin and telescopic pin are used to align the cross coordinates of the shaft system to ensure that the driving component is accurately aligned with the lowest point of the shaft system. Precise positioning is achieved by using a positioning sleeve and a sliding groove structure.

🎯Benefits of technology

It improves the accuracy of shaft system measurement, prevents uneven force distribution, and ensures the precision of measurement and the speed of quickly aligning the crosshairs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224347675U_ABST
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Abstract

The utility model provides a kind of shafting cross coordinate positioning device, comprising: driving part, the driving end of driving part is vertically liftablely arranged;Positioning assembly, at least part of positioning assembly is arranged the driving end of driving part, to drive positioning assembly to move along vertical direction by driving part;Positioning assembly has positioning part, and positioning part is used to align the cross coordinate on shafting, by the design of positioning assembly, when needing to align the lowest point of shafting by driving part, by positioning assembly aligning the cross coordinate on shafting, it can make driving part align the lowest point of shafting.
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Description

Technical Field

[0001] This utility model relates to the field of shaft system measurement technology, specifically to a shaft system cross coordinate positioning device. Background Technology

[0002] In shipbuilding and maintenance, jacks are used to precisely adjust the position of various parts of the shafting system to ensure the straightness of the shaft axis and its correct alignment with the hull structure. This not only affects propulsion efficiency but also directly relates to the service life of the shafting system and its related components (such as bearings). Correct positioning can reduce vibration and wear and improve the reliability of the mechanical system. However, the smooth surface of the shafting system lacks obvious reference points, making it difficult to ensure that the lowest point of the crankshaft coincides with the highest point of the jack. This can easily lead to the center point of the jack not coinciding with the lowest point of the shafting system, resulting in uneven force distribution, generating eccentric torque, and affecting measurement accuracy.

[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 shaft system cross coordinate positioning device to solve the technical problem in the related technology that the non-coincidence of the center point of the jack and the lowest point of the shaft system leads to uneven force distribution, generates eccentric torque, and affects the accuracy of measurement.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a shaft system cross coordinate positioning device is provided, comprising: a driving member, the driving end of the driving member being vertically and vertically configurable; a positioning component, at least a portion of which is provided with the driving end of the driving member, so as to drive the positioning component to move vertically via the driving member; the positioning component having a positioning part for aligning the cross coordinates on the shaft system.

[0006] Furthermore, the positioning assembly includes: a positioning sleeve extending along the movement direction of the driving member and sleeved on the driving end of the driving member; at least four positioning pins, each positioning pin being evenly spaced along the circumferential direction of the positioning sleeve on the outer wall of the positioning sleeve, and each positioning pin being movably arranged relative to the positioning sleeve in the vertical direction; each positioning pin extending along the extension direction of the positioning sleeve, and the positioning end of each positioning pin being arranged toward the shaft system; wherein the positioning end of each positioning pin forms a positioning part of the positioning assembly.

[0007] Furthermore, the outer wall of the positioning sleeve is provided with at least four sliding grooves, each sliding groove extending along the extension direction of the positioning sleeve, and each sliding groove being evenly spaced along the circumferential direction of the positioning sleeve; each sliding groove is provided in correspondence with each positioning pin, and at least a portion of each positioning pin is movably disposed in the corresponding sliding groove along the extension direction of the sliding groove.

[0008] Furthermore, the axis system cross coordinate positioning device also includes: a collimation assembly, which further includes: a fixed cylinder, which is disposed on the top of the positioning sleeve and extends along the extension direction of the positioning sleeve, with the central axis of the fixed cylinder coinciding with the central axis of the positioning sleeve; and a telescopic pin, which has a telescopic space provided in the fixed cylinder and extends along the extension direction of the fixed cylinder, and is telescopically disposed within the telescopic space, and is used to align the intersection of the cross coordinates on the axis system.

[0009] Furthermore, the alignment assembly also includes a positioning spring, which is located within the telescopic space, with its two ends connected to the fixed cylinder and the telescopic pin, respectively.

[0010] Furthermore, the shaft system cross coordinate positioning device also includes: a fixing component, which includes: a fixing seat, the fixing seat having a fixing space and a mounting hole communicating with the fixing space, the driving end of the driving member passing through the mounting hole and connected to the positioning sleeve, at least a portion of the positioning sleeve being located within the fixing space, and the fixing seat being connected to the positioning sleeve; at least four receiving cylinders, each receiving cylinder being spaced apart along the edge direction of the fixing seat at the bottom of the fixing seat, and each receiving cylinder extending in a vertical direction; each receiving cylinder having a placement cavity extending in a vertical direction, each placement cavity communicating with the fixing space; each placement cavity being correspondingly provided with each positioning pin; wherein, when each positioning pin moves relative to the corresponding positioning sleeve in a direction away from the shaft system, at least a portion of each positioning pin is located within the corresponding placement cavity.

[0011] Furthermore, the fixing assembly also includes: at least four telescopic springs, each telescopic spring being configured in a one-to-one correspondence with each receiving cylinder, and each telescopic spring being disposed in a corresponding placement cavity; the two ends of each telescopic spring are respectively connected to the corresponding positioning pin and the corresponding receiving cylinder.

[0012] Beneficial effects:

[0013] 1. By designing the positioning component, when it is necessary to align the drive component with the lowest point of the shaft system, the positioning component can be aligned with the cross coordinates on the shaft system to ensure that the drive component is aligned with the lowest point of the shaft system. Then, the next operation can be performed. This solves the problem of uneven force distribution caused by the misalignment of the jack center point and the lowest point of the shaft system, resulting in eccentric torque and affecting the accuracy of measurement.

[0014] 2. The design of each positioning pin moving on the corresponding slide groove facilitates the control of each positioning pin abutting against the cross coordinates on the shaft system during the alignment process, ensuring the accuracy of the drive component's alignment with the cross coordinates on the shaft system.

[0015] 3. Through the design of the telescopic needle and the fixed cylinder, during the process of aligning the cross coordinates on the axis, the telescopic needle set on the axis can quickly find the center point of the cross coordinates, thereby speeding up the alignment of the cross coordinates. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a cross coordinate positioning device for an axis system adopted in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning component structure of a cross coordinate positioning device for an axis system used in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the fixing component of a shaft system cross coordinate positioning device used in an embodiment of this utility model.

[0019] The above figures include the following reference numerals:

[0020] 1. Positioning component; 3. Positioning sleeve; 4. Slide groove; 5. Positioning pin; 6. Fixing cylinder; 7. Telescopic pin; 8. Fixing component; 9. Fixing base; 10. Fixing space; 11. Mounting hole; 12. Receiving cylinder; 13. Telescopic spring. Detailed Implementation

[0021] 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.

[0022] According to an embodiment of this utility model, a shaft system cross coordinate positioning device is provided. Please refer to [link / reference]. Figures 1 to 3 It includes: a driving member, the driving end of which is vertically movable; a positioning component 1, at least part of which is provided with the driving end of the driving member, so as to drive the positioning component 1 to move in the vertical direction by the driving member; the positioning component 1 has a positioning part for aligning with the cross coordinates on the axis system.

[0023] By adopting the above technical solution and through the design of the positioning component 1, when it is necessary to align the driving component with the lowest point of the shaft system, the positioning component 1 can be aligned with the cross coordinates on the shaft system to align the driving component with the lowest point of the shaft system, and then the next operation can be performed. This solves the problem that the uneven force distribution caused by the non-coincidence of the jack center point and the lowest point of the shaft system, resulting in eccentric torque and affecting the accuracy of measurement.

[0024] The preferred driving component is a jack, which is located at the bottom of the shaft system.

[0025] Please refer to Figure 1 and Figure 2 The positioning component 1 includes: a positioning sleeve 3, which extends along the movement direction of the driving member and is sleeved on the driving end of the driving member; at least four positioning pins 5, which are evenly spaced along the circumferential direction of the positioning sleeve 3 on the outer wall of the positioning sleeve 3, and are movably arranged relative to the positioning sleeve 3 in the vertical direction; each positioning pin 5 extends along the extension direction of the positioning sleeve 3, and the positioning end of each positioning pin 5 is arranged toward the shaft system; wherein the positioning end of each positioning pin 5 forms the positioning part of the positioning component 1.

[0026] By adopting the above technical solution and designing at least four positioning pins 5, it is easy to align the driving component with the lowest point of the shaft system by aligning each positioning pin 5 with the cross coordinate on the shaft system during the process of aligning the shaft system to the lowest point, thereby preventing the generation of eccentric torque during operation and affecting the measurement accuracy.

[0027] Please refer to the figure. The outer wall of the positioning sleeve 3 is provided with at least four sliding grooves 4. Each sliding groove 4 extends along the extension direction of the positioning sleeve 3 and is evenly spaced along the circumferential direction of the positioning sleeve 3. Each sliding groove 4 is provided in correspondence with each positioning pin 5. At least a part of each positioning pin 5 is movably disposed in the corresponding sliding groove 4 along the extension direction of the sliding groove 4.

[0028] By adopting the above technical solution, and through the design of each positioning pin 5 moving on the corresponding slide groove 4, it is convenient to control the contact between each positioning pin 5 and the cross coordinate on the shaft system during the alignment process, thus ensuring the accuracy of the drive component aligning with the cross coordinate on the shaft system.

[0029] Please refer to Figure 2 The axis system cross coordinate positioning device also includes: a collimation assembly, which further includes: a fixed cylinder 6, which is disposed on the top of the positioning sleeve 3 and extends along the extension direction of the positioning sleeve 3, with the central axis of the fixed cylinder 6 coinciding with the central axis of the positioning sleeve 3; and a telescopic pin 7, which has a telescopic space provided in the fixed cylinder 6 and extends along the extension direction of the fixed cylinder 6. The telescopic pin 7 is telescopically disposed within the telescopic space and is used to align the intersection of the cross coordinates on the axis system.

[0030] By adopting the above technical solution, through the design of telescopic pin 7 and fixed cylinder 6, during the process of aligning the cross coordinates on the axis, the telescopic pin 7 set on the axis can quickly find the center point of the cross coordinates, thereby speeding up the alignment of the cross coordinates.

[0031] Please refer to Figure 2 The alignment assembly also includes a positioning spring, which is located within the telescopic space, and its two ends are connected to the fixed cylinder 6 and the telescopic pin 7, respectively.

[0032] By adopting the above technical solution, the telescopic pin 7 is telescopically set in the fixed cylinder 6, which can simultaneously abut against the shaft system to be measured along with each positioning pin 5, preventing the situation where only the telescopic pin 7 contacts the shaft system while the other positioning pins 5 do not, thus affecting the accuracy of the measurement.

[0033] Please refer to Figures 1 to 3 The shaft system cross coordinate positioning device further includes: a fixing component 8, which includes: a fixing seat 9, the fixing seat 9 having a fixing space 10 and a mounting hole 11 communicating with the fixing space 10, the driving end of the driving member passing through the mounting hole 11 and connected to the positioning sleeve 3, at least a portion of the positioning sleeve 3 being located within the fixing space 10, and the fixing seat 9 being connected to the positioning sleeve 3; at least four receiving cylinders 12, each receiving cylinder 12 being spaced apart along the edge direction of the fixing seat 9 at the bottom of the fixing seat 9, and each receiving cylinder 12 extending in the vertical direction; each receiving cylinder 12 having a placement cavity extending in the vertical direction, each placement cavity communicating with the fixing space 10; each placement cavity being correspondingly provided with each positioning pin 5; wherein, when each positioning pin 5 moves relative to the corresponding positioning sleeve 3 in a direction away from the shaft system, at least a portion of each positioning pin 5 is located within the corresponding placement cavity.

[0034] By adopting the above technical solution and through the design of the receiving cylinder 12, during the process of each positioning pin 5 aligning with the cross coordinate on the shaft system, each positioning pin 5 can be extended and retracted within each receiving cylinder 12 to ensure that each positioning pin 5 is in contact with the cross coordinate on the shaft system, thus ensuring the correspondence between the driving component and the lowest point of the shaft system.

[0035] Please refer to Figure 3 The fixing component 8 also includes: at least four telescopic springs 13, each telescopic spring 13 is arranged in a one-to-one correspondence with each receiving cylinder 12, and each telescopic spring 13 is arranged in a corresponding placement cavity; the two ends of each telescopic spring 13 are respectively connected to the corresponding positioning pin 5 and the corresponding receiving cylinder 12.

[0036] By adopting the above technical solution and through the design of at least four telescopic springs 13, it can be ensured that each positioning pin 5 simultaneously contacts the shaft to be measured, preventing one or more positioning pins 5 from failing to contact the shaft and affecting the accuracy of the measurement.

[0037] Working principle:

[0038] First, the staff marks the cross coordinates at the preset position of the shaft system by measuring. Then, the shaft system is rotated so that the center point of the cross coordinates is located at the lowest point of the shaft system. Then, the positioning sleeve 3 is put on the driving component. First, the telescopic pin 7 is aligned with the center point of the cross coordinates. Then, the four positioning pins 5 on the positioning sleeve 3 are aligned with the four sides of the cross coordinates. This completes the positioning of the driving component and the lowest point of the shaft system.

[0039] 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.

[0040] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0041] 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.

[0042] 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.

[0043] 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 shaft system cross coordinate positioning device, characterized in that, include: A driving component, wherein the driving end of the driving component is vertically movable; The positioning component (1) has at least a portion of the driving end of the driving member so as to drive the positioning component (1) to move along the vertical direction by the driving member; the positioning component (1) has a positioning part for aligning with the cross coordinates on the axis system.

2. The shaft system cross coordinate positioning device according to claim 1, characterized in that, The positioning component (1) includes: Positioning sleeve (3), the positioning sleeve (3) extends along the movement direction of the driving member, and the positioning sleeve (3) is sleeved on the driving end of the driving member; At least four positioning pins (5) are evenly spaced on the outer wall of the positioning sleeve (3) along the circumferential direction, and each positioning pin (5) is movably arranged relative to the positioning sleeve (3) in the vertical direction; each positioning pin (5) extends along the extension direction of the positioning sleeve (3), and the positioning end of each positioning pin (5) is arranged toward the shaft system; The positioning ends of each of the positioning pins (5) form the positioning part of the positioning component (1).

3. The shaft system cross coordinate positioning device according to claim 2, characterized in that, The outer wall of the positioning sleeve (3) is provided with at least four sliding grooves (4), each of the sliding grooves (4) extends along the extension direction of the positioning sleeve (3), and each of the sliding grooves (4) is evenly spaced along the circumferential direction of the positioning sleeve (3); each of the sliding grooves (4) is provided in correspondence with each of the positioning pins (5), and at least a portion of each positioning pin (5) is movably disposed in the corresponding sliding groove (4) along the extension direction of the sliding groove (4).

4. The shaft system cross coordinate positioning device according to claim 2, characterized in that, The axis cross coordinate positioning device further includes: a collimation assembly, the collimation assembly further includes: A fixing cylinder (6) is disposed on the top of the positioning sleeve (3). The fixing cylinder (6) extends along the extension direction of the positioning sleeve (3), and the central axis of the fixing cylinder (6) coincides with the central axis of the positioning sleeve (3). The telescopic needle (7) is provided with a telescopic space in the fixed cylinder (6). The telescopic needle (7) extends along the extension direction of the fixed cylinder (6). The telescopic needle (7) is telescopically disposed in the telescopic space. The telescopic needle (7) is used to align the intersection of the cross coordinates on the axis.

5. The shaft system cross coordinate positioning device according to claim 4, characterized in that, The alignment assembly further includes a positioning spring, which is located within the telescopic space, and its two ends are connected to the fixed cylinder (6) and the telescopic needle (7) respectively.

6. The shaft system cross coordinate positioning device according to claim 2, characterized in that, The axis cross coordinate positioning device further includes: a fixing component (8), the fixing component (8) including: A fixed base (9) is provided with a fixed space (10) and a mounting hole (11) communicating with the fixed space (10). The driving end of the driving member passes through the mounting hole (11) and is connected to the positioning sleeve (3). At least a part of the positioning sleeve (3) is located in the fixed space (10). The fixed base (9) is connected to the positioning sleeve (3). At least four receiving tubes (12) are provided, each receiving tube (12) is spaced apart at the bottom of the fixing base (9) along the edge direction of the fixing base (9), and each receiving tube (12) extends along the vertical direction; each receiving tube (12) is provided with a placement cavity extending along the vertical direction, and each placement cavity is in communication with the fixing space (10); each placement cavity is provided in correspondence with each positioning pin (5); When each of the positioning pins (5) moves relative to the positioning sleeve (3) in a direction away from the axis, at least a portion of each of the positioning pins (5) is located in the corresponding placement cavity.

7. The shaft system cross coordinate positioning device according to claim 6, characterized in that, The fixing component (8) further includes: at least four telescopic springs (13), each of the telescopic springs (13) is arranged in a one-to-one correspondence with each of the receiving cylinders (12), and each of the telescopic springs (13) is arranged in the corresponding placement cavity; the two ends of each of the telescopic springs (13) are respectively connected to the corresponding positioning pin (5) and the corresponding receiving cylinder (12).