CN110937078B - Navigation retaining device for ship model experiment - Google Patents
Navigation retaining device for ship model experiment Download PDFInfo
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- CN110937078B CN110937078B CN201911220848.4A CN201911220848A CN110937078B CN 110937078 B CN110937078 B CN 110937078B CN 201911220848 A CN201911220848 A CN 201911220848A CN 110937078 B CN110937078 B CN 110937078B
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- guide rod
- ship model
- guide
- fixing plate
- fastener
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Abstract
The invention discloses a navigation retaining device for a ship model experiment, which comprises a guide rod fixing plate (3) arranged on a trailer measuring bridge, a guide rod (4) and a guide sheet (5) used for connecting a ship model, wherein an adjusting hole is arranged in the middle of the guide rod fixing plate (3); the adjusting hole is provided with an annular fastener (8), and the fastener (8) comprises an upper fastening disc and a lower fastening disc which are respectively arranged on the upper surface and the lower surface of the guide rod fixing plate (3) and a threaded connecting piece for connecting the upper fastening disc and the lower fastening disc; the guide rod (4) penetrates through the annular fastener and is connected with the upper fastening disc in an adjustable mode through a vertical limiting screw (7), a sliding groove is formed in the guide piece (5), and the lower end of the guide rod (4) penetrates through the sliding groove. The invention keeps the course angle change of the ship model in a very small range, can protect the measuring instrument from overload of torque, and is easy to adjust, firm, difficult to slide and convenient to disassemble.
Description
Technical Field
The invention belongs to the field of ship and ocean engineering model tests, and particularly relates to a navigation maintaining device used for a ship model test.
Background
The ship model test is a test of ship navigation performed on a river model of a channel by using a ship model with a corresponding scale. By using the reduced ship model, the hydrodynamic properties such as thrust of the ship can be estimated, and the estimated hydrodynamic properties can be used as a reference for designing and improving the work. The ship model resistance test is to use ship models with similar geometry and reduced size to real ships, to carry out towing test in a water tank under the condition of satisfying Froude number, to determine the relation between resistance and speed, and further to convert the test result to real ships. The test tank is a long and narrow water tank with the size dependent on the size and speed of the ship model, and is equipped with dragging equipment and various measuring instruments to measure the resistance value of the ship model at different speeds. According to the towing mode, the water pool is divided into a trailer type water pool and a gravity type water pool. The trailer type water pool is formed from ship model which is towed by trailer mounted on two rails at the side of pool, and various measuring and recording instruments are mounted on the trailer, and when it is tested, it is known speed to obtain its resistance. The ship model test in the towing tank is an important technical means for predicting the performance of the ship, and the ship model test can predict the resistance, propulsion, steering and rapid performance of a real ship. The ship model test is usually carried out before the construction of a real ship, and the navigation of the ship model is often fixed by a guide device when the ship model test is carried out. The guiding device keeps the course angle change of the ship model in a small range and can also protect the measuring instrument from overload of torque. In summary, the ship model guide device used in the towing tank test is a very necessary auxiliary measure and an important protection measure for experimental instruments, and the towing tank ship model test guide device is invented based on the above purposes. The guide device is generally used for guiding in order to control the ship model course during the test, and the guide device is a necessary test instrument which is important for a test measuring and recording instrument.
Disclosure of Invention
Aiming at the prior art, the invention aims to solve the technical problem of a navigation retaining device used for a ship model experiment, which is easy to adjust, firm, difficult to slide and convenient to disassemble.
In order to solve the technical problem, the navigation maintaining device for the ship model experiment comprises a guide rod fixing plate 3, a guide rod 4 and a guide sheet 5, wherein the guide rod fixing plate 3 is arranged on a trailer measuring bridge, the guide sheet 5 is used for connecting a ship model, and an adjusting hole is formed in the middle of the guide rod fixing plate 3; the adjusting hole is provided with an annular fastener 8, and the fastener 8 comprises an upper fastening disc and a lower fastening disc which are respectively arranged on the upper surface and the lower surface of the guide rod fixing plate 3 and a threaded connecting piece for connecting the upper fastening disc and the lower fastening disc; the guide rod 4 penetrates through the annular fastener and is connected with the upper fastening disc in an adjustable mode through a vertical limiting screw 7, a sliding groove is formed in the guide piece 5, and the lower end of the guide rod 4 penetrates through the sliding groove.
As a modification of the present invention, a hand-held disk 9 is provided at the top end of the guide bar 4.
As another improvement of the invention, the horizontal direction adjustment mode is to change the position of the fastening piece in the adjustment hole, and the vertical direction adjustment mode is to change the connecting position of the guide rod and the fastening piece.
The invention has the beneficial effects that: the guiding device of the invention keeps the course angle change of the ship model in a very small range, can also protect the measuring instrument from overload of torque, and is easy to adjust, firm, difficult to slide and convenient to disassemble.
Drawings
Fig. 1 is a view showing an assembled position of the apparatus.
Fig. 2 is a front view of the device.
Fig. 3 is a side view of the device.
Fig. 4 is a top view of the device.
Fig. 5 is a front view of the guide bar.
Fig. 6 is a top view of the guide vane.
Fig. 7 is a side view of the fastener.
Fig. 8 is a schematic view of the overall structure.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
Referring to fig. 1 to 8, first, the guide plate 5 is mounted on the deck of the ship model using the self-tapping screw 6, and the guide bar is connected after the ship model is adjusted to have a draft and a floating state. Install the guide bar fixed plate 3 on the survey bridge of trailer, concrete mounted position uses experimental demand as the standard. 3 both ends of guide bar fixed plate all have cardboard 2 to be used for fixing, need press big screw 1 on cardboard 2 when the installation, and guide bar fixed plate 3 is the sideslip that the oval groove was used for guide bar 4 is opened in the middle of the steel. After the guide rod fixing plate 3 is fixed in position, the guide rod fastener 8 is installed in the elliptical groove, the fastener 8 consists of an upper part and a lower part, and the guide rod is screwed by the screw 10 and then clamped on the fixing plate 3. After the fastener 8 is installed, the guide rod 4 is inserted into the inner hole and passes through the guide sheet 5, the guide rod 4 does not interfere with the vertical and longitudinal displacement of the ship model, and the vertical limiting screw 7 is screwed and fixed after the upper position and the lower position are adjusted. Finally, the guide rod 4 is connected with the guide rod fixing plate 3 and the ship model, and the transverse displacement of the ship model is limited to achieve the purpose of fixed navigation due to the rigid fixation of the guide rod fixing plate 3.
The guide rod part consists of a guide rod 4, a hand-held disc 9 and a screw 11 and is used for limiting the transverse displacement of the guide sheet 5. The guide rod 4 is fixed and adjusted by a fastening ring 8, a vertical limit screw 7 and a horizontal limit screw 10, and the vertical limit screw 7 and the horizontal limit screw 10 respectively control the vertical and horizontal positions. The adjusting fastener 8 is used for adjusting the left and right positions in the groove position of the guide rod fixing plate 3, and the up and down positions are adjusted through the hand-held disc 9. And finally, fixing the guide rod by using a fastening bolt.
The large nut 1, the screw 12 and the clamping plate 2 are used for arranging the device on a bridge of a trailer and can move along the bridge.
The guide piece 5 is used for limiting the transverse displacement of the ship model, is fixed on the deck of the ship model by using a self-tapping screw 6, and is not limited to the fixing position shown in the attached drawing 1 by taking the position which is convenient to operate in the test as the fixing position.
The integral structure adopts the materials just, and the integral structural strength and stability are ensured.
Claims (3)
1. The utility model provides a navigation holding device that ship model experiment was used which characterized in that: the device comprises a guide rod fixing plate (3) arranged on a trailer measuring bridge, a guide rod (4) and a guide sheet (5) used for connecting a ship model, wherein an adjusting hole is formed in the middle of the guide rod fixing plate (3); the adjusting holes are provided with fasteners (8), and the fasteners (8) comprise upper fastening discs and lower fastening discs which are respectively arranged on the upper surface and the lower surface of the guide rod fixing plate (3) and threaded connecting pieces for connecting the upper fastening discs and the lower fastening discs; the guide rod (4) penetrates through the fastener and is connected with the upper fastening disc in an adjustable mode through a vertical limiting screw (7), a sliding groove is formed in the guide piece (5), and the lower end of the guide rod (4) penetrates through the sliding groove.
2. The voyage keeping device for ship model experiment of claim 1, which is characterized in that: the top end of the guide rod (4) is provided with a portable disc (9).
3. A voyage keeping apparatus for ship model experiments according to claim 1 or 2, characterized in that: the horizontal direction is adjusted in a mode of changing the position of the fastener in the adjusting hole, and the vertical direction is adjusted in a mode of changing the connecting position of the guide rod and the fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911220848.4A CN110937078B (en) | 2019-12-03 | 2019-12-03 | Navigation retaining device for ship model experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911220848.4A CN110937078B (en) | 2019-12-03 | 2019-12-03 | Navigation retaining device for ship model experiment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110937078A CN110937078A (en) | 2020-03-31 |
| CN110937078B true CN110937078B (en) | 2021-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911220848.4A Active CN110937078B (en) | 2019-12-03 | 2019-12-03 | Navigation retaining device for ship model experiment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111976914B (en) * | 2020-08-21 | 2021-11-23 | 国家海洋局北海环境监测中心(中国海监北海区检验鉴定中心） | Ocean oil spill monitoring and early warning simulation test platform |
| CN114044104B (en) * | 2021-11-03 | 2023-03-21 | 上海外高桥造船有限公司 | Method for measuring minimum speed of ship for keeping course |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908027A (en) * | 2017-02-22 | 2017-06-30 | 哈尔滨工程大学 | Multi-functional ship model direction calibration device |
| CN107097901A (en) * | 2017-04-13 | 2017-08-29 | 哈尔滨工程大学 | A kind of ice formation ship model experiment towing gear |
| CN107389263A (en) * | 2017-08-22 | 2017-11-24 | 哈尔滨工程大学 | A kind of pond ship model aids in levelling device |
| CN107776828A (en) * | 2017-09-28 | 2018-03-09 | 哈尔滨工程大学 | A kind of balance attachment means of ship model experiment model |
| CN110243570A (en) * | 2019-06-25 | 2019-09-17 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Planar motion mechanism for surface ship model maneuverability test |
-
2019
- 2019-12-03 CN CN201911220848.4A patent/CN110937078B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908027A (en) * | 2017-02-22 | 2017-06-30 | 哈尔滨工程大学 | Multi-functional ship model direction calibration device |
| CN107097901A (en) * | 2017-04-13 | 2017-08-29 | 哈尔滨工程大学 | A kind of ice formation ship model experiment towing gear |
| CN107389263A (en) * | 2017-08-22 | 2017-11-24 | 哈尔滨工程大学 | A kind of pond ship model aids in levelling device |
| CN107776828A (en) * | 2017-09-28 | 2018-03-09 | 哈尔滨工程大学 | A kind of balance attachment means of ship model experiment model |
| CN110243570A (en) * | 2019-06-25 | 2019-09-17 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Planar motion mechanism for surface ship model maneuverability test |
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| CN110937078A (en) | 2020-03-31 |
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