A ship shaft rudder system measuring device

Abstract

The present invention discloses a ship shaft and rudder system measuring device, comprising a disk, two fixed supporting feet, two movable supporting feet, a rower, and a stylus. The end face of the disk is connected to a bearing, the disk is provided with a rotatable bearing sleeve, the bearing sleeve and the bearing are arranged concentrically, and the bearing is connected to a locking member to lock with the disk; the two fixed supporting feet are fixedly connected to the disk, the two fixed supporting feet are arranged oppositely and extend outside the disk; the two movable supporting feet are connected to the bearing sleeve, the two movable supporting feet are arranged oppositely and extend outside the disk, the fixed supporting feet and the movable supporting feet are both provided with scales, and the two fixed supporting feet and the two movable supporting feet can be arranged in a cross shape to support the inner wall of the shaft and rudder hole of the ship; the rower is fixedly connected to the outer ring of the bearing, the rower is provided with a slide groove arranged along the length direction, and the rower is provided with a size scale; the stylus is inserted into the slide groove, and the stylus has a locking mechanism to lock with the rower. It is convenient for storage and transportation and avoids collision.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, in particular to a ship shaft and rudder system measuring device. Background Art

[0002] Among related technologies, with the continuous development of the shipbuilding industry, precision shipbuilding technology has played a significant role in promoting the economic benefits and market competitiveness of shipbuilding companies. As an important component of precision shipbuilding technology, the accuracy of the ship's shaft and rudder system is a key precision control project during the completion of the section, assembly, or installation of the shaft and rudder system section. Lighting is also a key node in the dock construction process and is related to the shipyard's dock progress. Currently, when each shipyard reports for lighting inspection, one person is required to set up the laser theodolite on the laser platform and adjust it to the center position of the shaft and rudder system. The other two people use a simple light target to measure the radius of the shaft and rudder system. The measurement process requires entering the engine room through the stern shaft. The measuring scale is easily bent and damaged due to bumps. After the measurement, the concentric circles of the boring are marked according to the measurement data. Due to the high precision requirements of the engine, the workload is often increased for adjustment and correction, which is inconvenient for personnel to check and increases the risk of marking errors, thereby increasing the review work and wasting a lot of manpower and time. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a ship shaft rudder system measuring device that can effectively improve line marking accuracy, reduce collisions, and improve reliability.

[0004] According to an embodiment of the present invention, a ship shaft and rudder system measuring device includes a disc, two fixed supporting feet, two movable supporting feet, a rower and a rower needle, the end face of the disc is connected to a bearing, the disc is provided with a rotatable bearing sleeve, the bearing sleeve is arranged concentrically with the bearing, and the bearing is connected with a locking piece to lock to the disc; the two fixed supporting feet are fixedly connected to the disc, the two fixed supporting feet are arranged oppositely and extend to the outside of the disc; the two movable supporting feet are connected to the bearing sleeve, the two movable supporting feet are arranged oppositely and extend to the outside of the disc, the fixed supporting feet and the movable supporting feet are both provided with scales, the two fixed supporting feet and the two movable supporting feet can be distributed in a cross shape to support the inner wall of the shaft and rudder hole of the ship; the rower is fixedly connected to the outer ring of the bearing, the rower is provided with a sliding groove arranged along the length direction, and the rower is provided with a size scale; the rower needle is passed through the sliding groove, and the rower needle has a locking mechanism to lock to the rower.

[0005] The marine shaft and rudder system measuring device according to an embodiment of the present invention has at least the following beneficial effects: during measurement, the bearing sleeve is rotated to arrange the two fixed support legs and the two movable support legs in a cross shape, the bearing sleeve is then locked using a locking member, and the shaft and rudder system measuring device is then placed in the shaft and rudder hole, supported on the inner wall of the shaft and rudder hole by the two fixed support legs and the two movable support legs. The length of the two fixed support legs and the two movable support legs is adjusted using a length adjustment mechanism, the center of the disk is aligned with the center of the shaft and rudder hole by checking the scale, and the radius of the shaft and rudder hole is read simultaneously. Then, according to the required boring size, the stylus is adjusted into position and locked, and the stylus is rotated to mark the boring circle. The shaft and rudder system measuring device directly marks the boring circle using the stylus, avoiding calculation errors caused by secondary marking and improving marking accuracy. After disassembly, the locking member is released and the bearing sleeve is rotated to fold the shaft and rudder system measuring device, reducing its size, facilitating storage and transportation, avoiding collisions when entering and exiting the shaft and rudder hole, reducing the risk of deformation errors, and improving stability.

[0006] According to some embodiments of the present invention, the disc is provided with two positioning blocks, wherein one of the movable supporting feet is located between the two positioning blocks and its rotation angle is limited by the two positioning blocks.

[0007] According to some embodiments of the present invention, the circular disc is provided with a cross-square line, and the cross-square line is perpendicular to the fixed support foot.

[0008] According to some embodiments of the present invention, the length adjustment mechanism includes a support rod and a threaded rod, the support rod is arranged on the outer periphery of the bearing sleeve, the support rod is provided with a threaded hole, the threaded rod is arranged on the fixed support foot and the movable support foot, and the threaded rod is installed in the threaded hole.

[0009] According to some embodiments of the present invention, the movable supporting foot is provided with a hand-tightening component, the hand-tightening component is fixed to the outer wall of the threaded rod, and the hand-tightening component is provided with anti-slip grooves or is set in a hexagonal shape.

[0010] According to some embodiments of the present invention, a pad is provided at the outer end of the movable supporting foot, and the pad is made of rubber. The pad has a smooth curved surface for abutting against the inner wall of the shaft rudder hole.

[0011] According to some embodiments of the present invention, the locking mechanism includes a retaining ring and a nut, the retaining ring is fixed to the marking needle, the nut is threadedly connected to the marking needle, and the retaining ring and the nut are arranged on both sides of the marking rod.

[0012] According to some embodiments of the present invention, the locking member is a set screw, the set screw is provided with a cap head, and a surface of the cap head is provided with a knurling pattern.

[0013] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments with reference to the accompanying drawings, in which:

[0015] Figure 1 Schematic diagram of the use state of the ship shaft and rudder system measuring device according to some embodiments of the present invention;

[0016] Figure 2 Schematic diagram of the folded state of a ship shaft and rudder system measuring device according to some embodiments of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the movable supporting foot connected to the support rod in the present invention;

[0018] Figure 4 This is a schematic structural diagram of the movable supporting foot in the present invention;

[0019] Figure 5 It is a structural schematic diagram of the connection between the row rod and the row needle in the present invention. DETAILED DESCRIPTION

[0020] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0021] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] Reference Figures 1 to 5Some embodiments of the present invention provide a ship shaft and rudder system measuring device, including a disc 100, two fixed support legs 200, two movable support legs 300, a rowing rod 400 and a rowing needle 500. The end face of the disc 100 is connected to a bearing 110. The disc 100 is provided with a rotatable bearing sleeve 120. The bearing sleeve 120 and the bearing 110 are arranged concentrically. The bearing 110 is connected to a locking member 130 to be locked to the disc 100; the two fixed support legs 200 are fixedly connected to the disc 100, the two fixed support legs 200 are arranged opposite to each other and extend outside the disc 100; the two movable support legs 300 is connected to the bearing sleeve 120, the two movable supporting feet 300 are arranged opposite to each other and extend outside the disc 100, the fixed supporting feet 200 and the movable supporting feet 300 are both provided with a scale 210, the two fixed supporting feet 200 and the two movable supporting feet 300 can be distributed in a cross shape to support the inner wall of the rudder hole of the ship; the rower 400 is fixedly connected to the outer ring of the bearing 110, the rower 400 is provided with a slide groove 410 arranged along the length direction, and the rower 400 is provided with a size scale; the rower needle 500 is passed through the slide groove 410, and the rower needle 500 has a locking mechanism to lock to the rower 400.

[0024] When the shaft and rudder system measuring device is in use, the bearing sleeve 120 is rotated to arrange the two fixed support legs 200 and the two movable support legs 300 in a cross shape, and then the locking piece 130 is used to lock the bearing sleeve 120, and then the shaft and rudder system measuring device is placed in the shaft and rudder hole, and supported on the inner wall of the shaft and rudder hole by the two fixed support legs 200 and the two movable support legs 300, and the length of the two fixed support legs 200 and the two movable support legs 300 is adjusted by the length adjustment mechanism, and the center of the disk 100 is adjusted to be consistent with the center of the shaft and rudder hole by checking the scale 210, and the radius value of the shaft and rudder hole is read at the same time, and then according to the required boring size, the marking needle 500 is adjusted into place and locked, and the marking needle 500 is rotated to mark the boring circle. The shaft and rudder system measuring device directly marks the boring circle through the marking needle 500, thereby avoiding calculation errors caused by secondary marking and improving marking accuracy. It has the advantages of lightweight design, easy to carry, simple operation, and reliable use, and is widely used in shipbuilding. After the shaft-rudder system measuring device is disassembled, the locking piece 130 is released and the bearing sleeve 120 is rotated to fold the shaft-rudder system measuring device, thereby reducing the volume, facilitating storage and transportation, avoiding collision when entering and exiting the shaft-rudder hole, reducing the risk of deformation error, and improving stability.

[0025] Reference Figure 1 and Figure 2According to some embodiments of the present invention, the disk 100 is provided with two positioning blocks 140, with one movable support foot 300 positioned between the two positioning blocks 140. The movable support foot 300 is also limited in its rotation angle by the two positioning blocks 140, with one positioning block 140 defining the measurement position and the other positioning block 140 defining the retracted position. Alternatively, the disk 100 may be provided with four positioning blocks 140, with each movable support foot 300 corresponding to two positioning blocks 140, for greater reliability.

[0026] Reference Figure 2 According to some embodiments of the present invention, the disc 100 is provided with a cross-square line, which is perpendicular to the fixed support legs 200. In the process of adjusting the two fixed support legs 200 and the two movable support legs 300 into a cross shape, the cross-square line is used to help position the two movable support legs 300, thereby increasing the adjustment speed, reducing the measurement effort, and improving efficiency.

[0027] Reference Figure 3 and Figure 4 According to some embodiments of the present invention, the length adjustment mechanism includes a support rod 150 and a threaded rod 220. The support rod 150 is disposed on the outer periphery of the bearing sleeve 120 and is provided with a threaded hole. The fixed support leg 200 and the movable support leg 300 are both provided with a threaded rod 220, which is mounted in the threaded hole. By rotating the threaded rod 220, the relative position of the fixed support leg 200, the movable support leg 300, and the support rod 150 can be adjusted to achieve the purpose of adjusting the length, thereby securing the shaft-rudder system measurement device in the shaft-rudder hole and enabling alignment adjustment. Alternatively, the length adjustment mechanism may employ linear bearings, etc.

[0028] Reference Figure 3 and Figure 4 According to some embodiments of the present invention, the movable supporting foot 300 is provided with a hand-tightening component 310, which is fixed to the outer wall of the threaded rod 220. The hand-tightening component 310 is provided with anti-slip grooves, or the hand-tightening component 310 is set to a hexagonal shape to facilitate workers to twist the threaded rod 220 for adjustment, saving time.

[0029] Reference Figure 3 and Figure 4 According to some embodiments of the present invention, a pad 320 is provided at the outer end of the movable supporting foot 300. The pad 320 is usually made of rubber or metal. The pad 320 is provided with a smooth curved surface for abutting the inner wall of the shaft rudder hole. The rubber pad 320 can avoid collision and damage to the inner wall of the shaft rudder hole, and improve the installation stability.

[0030] Reference Figure 5According to some embodiments of the present invention, the locking mechanism includes a retaining ring 510 and a nut 520. The retaining ring 510 is fixed to the stylus 500, and the nut 520 is threadedly connected to the stylus 500. The retaining ring 510 and the nut 520 are located on both sides of the stylus 400. By turning the nut 520, the retaining ring 510 and the nut 520 can be used to clamp the stylus 400 and secure it. To adjust the position of the stylus 500, the nut 520 can be loosened. This simple structure is convenient and easy to use.

[0031] According to some embodiments of the present invention, the locking member 130 is a set screw, which is provided with a cap head. The surface of the cap head is provided with a knurled pattern, which makes it easy for workers to twist it to achieve locking and facilitate operation.

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the spirit of the present invention.

Claims

1. A ship shaft rudder system measuring device, characterized in that: include: A disc, wherein an end surface of the disc is connected to a bearing, the disc is provided with a rotatable bearing sleeve, the bearing sleeve is concentrically arranged with the bearing, and the bearing is connected to a locking member to lock to the disc; Two fixed support legs, fixedly connected to the disc, the two fixed support legs are arranged opposite to each other and extend outside the disc; Two movable supporting feet connected to the bearing sleeve, the two movable supporting feet are arranged opposite to each other and extend outside the disc, and the fixed supporting feet and the movable supporting feet are both provided with a scale and a length adjustment mechanism; A row bar fixedly connected to the outer ring of the bearing, the row bar being provided with a slide groove arranged along the length direction and the row bar being provided with a size scale; A marking needle is inserted into the slide groove, and the marking needle has a locking mechanism to lock it to the marking rod; In which, the disc is provided with two positioning blocks, one of the movable supporting feet is located between the two positioning blocks and its rotation angle is limited by the two positioning blocks; the disc is provided with a cross-square line, and the cross-square line is perpendicular to the fixed supporting foot; the length adjustment mechanism includes a support rod and a threaded rod, the support rod is arranged on the outer periphery of the bearing sleeve, the support rod is provided with a threaded hole, the threaded rod is arranged on the fixed supporting foot and the movable supporting foot, and the threaded rod is installed in the threaded hole; the movable supporting foot is provided with a hand-tightening component, the hand-tightening component is fixed to the outer wall of the threaded rod, the hand-tightening component is provided with anti-slip grooves or is set to a hexagonal shape; the outer end of the movable supporting foot is provided with a pad, the pad is a rubber part, and the pad is provided with a smooth curved surface for abutting the inner wall of the shaft rudder hole; the locking mechanism includes a retaining ring and a nut, the retaining ring is fixed to the marking needle, the nut is threadedly connected to the marking needle, and the retaining ring and the nut are arranged on both sides of the marking rod.

2. The ship shaft and rudder system measuring device according to claim 1, characterized in that: The locking piece is a set screw, the set screw is provided with a cap head, and the surface of the cap head is provided with a knurled pattern.

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