CN116045777B - Semi-immersed propeller angle measurement tool - Google Patents
Semi-immersed propeller angle measurement tool Download PDFInfo
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- CN116045777B CN116045777B CN202310303419.3A CN202310303419A CN116045777B CN 116045777 B CN116045777 B CN 116045777B CN 202310303419 A CN202310303419 A CN 202310303419A CN 116045777 B CN116045777 B CN 116045777B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses an angle measurement tool of a semi-submerged propeller, which comprises the following components: frock guiding ruler, first regulation portion, second regulation portion, first frock clamp, second frock clamp, measuring assembly and slide rail strip, the equal fixed mounting of one end of first regulation portion and slide rail strip has the knot piece, and first frock clamp and second frock clamp are fixed in the surface of first regulation portion and slide rail strip through detaining the piece respectively, and the structure of first frock clamp and second frock clamp is the same, and first regulation portion and second regulation portion slidable mounting are in the surface of frock guiding ruler. According to the invention, by arranging the novel tool structure, the surfaces of the steering cylinder and the trim cylinder are respectively clamped by the first tool clamp and the second tool clamp on the surfaces of the sliding rail, and the first tool clamp and the second tool clamp can drag the first adjusting part, the second adjusting part and the measuring assembly to move along with deflection of the steering angle or the trim angle of the semi-submerged propeller propelling device without repeatedly calibrating the measuring structure.
Description
Technical Field
The invention relates to the technical field of angle measuring instruments, in particular to an angle measuring tool for a semi-submerged propeller.
Background
The semi-submerged propeller propulsion device (also called surface propeller propulsion device) has the characteristics of cavitation-free degradation, low resistance, shallow draft, high efficiency and the like during high-speed navigation, is a preferred propulsion mode of a novel high-speed boat in the current world, and is widely applied to various military ships, public service ships, hydrologic ships and the like. The steering angle and the pitching angle of the semi-submerged propeller are key indexes, and detection is needed in the development and production processes. In chinese patent publication (bulletin) No.: in the scheme, the first working edge and the third working edge of the angle measurement tool are parallel through adjusting the position of a bolt, the distance between the first working edge and the third working edge is half of the difference value between the diameter of the outer circle of a ball seat in the semi-submerged propeller propelling device and the diameter of the outer circle of a cylindrical section of a ball body, the first working edge and the third working edge of the angle measurement tool are respectively and reliably contacted with the outer circle of the ball seat and the outer circle of the cylindrical section of the ball body in the steering direction and the pitching direction through hydraulic driving of a steering cylinder and a pitching cylinder, the semi-submerged propeller propelling device is located in the middle position at the moment, the angle measurement tool is adjusted, the first working edge is reliably contacted with the outer circle of the ball seat, meanwhile, the third working edge is reliably contacted with the outer circle of the cylindrical section of the ball body, the bolt is screwed down, the angle measurement tool is taken down, and the steering angle or the pitching angle of the steering propeller propelling device can be obtained by measuring the angle formed by the first working edge and the third working edge of the angle measurement tool through a protractor.
According to the scheme, the steering angle or the trim angle of the semi-submerged propeller is measured through the surface joint butt joint of the steering cylinder and the trim cylinder of the adjusting plate and the adjusting plate which deflect mutually, the surface joint effect of the adjusting plate and the surface joint effect of the semi-submerged propeller are determined through operations such as a level bar, a hanging line and paper laying in measurement, calibration is carried out, so that the measurement accuracy is guaranteed, the operation steps are complex, the relative position between the adjusting plate and the adjusting plate is adjusted through an adjusting bolt, the positioning of the adjusting plate and the positioning plate is unstable, certain deviation is caused when the angle value of the adjusting plate and the positioning plate is read, and the precision is low. In view of the above, the present invention provides a tool and a method for measuring the angle of a semi-submerged propeller to solve the existing problems, and aims to solve the problems and improve the practical value by the technology.
Disclosure of Invention
The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
The technical scheme adopted by the invention is as follows: half-soaking propeller angle measurement tool, including: the device comprises a tool guide rule, a first adjusting part, a second adjusting part, a first tool clamp, a second tool clamp, a measuring assembly and a sliding rail, wherein buckling blocks are fixedly arranged at one ends of the first adjusting part and the sliding rail, the first tool clamp and the second tool clamp are respectively fixed on the surfaces of the first adjusting part and the sliding rail through the buckling blocks, the first tool clamp and the second tool clamp are identical in structure, the first adjusting part and the second adjusting part are slidably arranged on the surface of the tool guide rule, the measuring assembly is slidably arranged on the surface of the sliding rail, a first locking bolt and a second locking bolt are respectively arranged on one sides of the first adjusting part and the second adjusting part, a rotary tooth sleeve is rotatably arranged on the surface of the second adjusting part, an angle measuring disc is arranged on the surface of the second adjusting part, and an indicating needle slidably arranged on the surface of the angle measuring disc is arranged on one side of the rotary tooth sleeve;
the measuring assembly comprises a sliding block, a ball fixing frame and a transmission ball tooth, wherein the ball fixing frame and the transmission ball tooth are fixedly arranged on the top surface of the sliding block, a sleeve seat is fixedly sleeved on the outer side of the transmission ball tooth, an angle sensor is fixedly arranged on the surface of the sleeve seat, and one side of the tooth rotating sleeve penetrates through the deflection tooth groove to be meshed with the surface of the transmission ball tooth.
The present invention may be further configured in a preferred example to: the fixture guide rule is of a straight rule plate structure, the first fixture clamp, the second adjusting part and the first adjusting part are arranged perpendicular to the surface direction of the fixture guide rule, and scales are arranged on the surfaces of the fixture guide rule and the angle measuring disc.
The present invention may be further configured in a preferred example to: the surface of the transmission ball tooth is provided with a plurality of annular tooth edges, the surface of the tooth rotating sleeve is provided with gear teeth matched with the transmission ball tooth, and the axis of the tooth rotating sleeve is positioned on the vertical middle branching line of the transmission ball tooth.
The present invention may be further configured in a preferred example to: the inner side of the holding seat is provided with a U-shaped sleeve groove, the bottom surface of the lock cover is provided with a pressing ring, and the bottom surface of the pressing ring is in a zigzag shape.
The present invention may be further configured in a preferred example to: the first fixture clamp and the second fixture clamp comprise a holding seat, a lock cover and a connecting lug, one side of the connecting lug is movably connected with the surface of the holding seat, the lock cover is rotatably sleeved on the surface of the connecting lug, a wire head is arranged on the surface of the holding seat, a screw sleeve matched with the wire head is arranged on the inner side of the lock cover, and a buckling groove matched with the buckling block is formed in the bottom surface of the holding seat.
The present invention may be further configured in a preferred example to: one side of the holding seat is fixedly provided with an elastic propping piece, the surface of the elastic propping piece is provided with a locking ejector pin, the locking ejector pin is elastically propped against the bottom surface of the propping ring, and the elastic propping piece is W-shaped and has elasticity.
The present invention may be further configured in a preferred example to: the input shaft of the angle sensor is coaxial with the rotating shaft of the rotating tooth sleeve, the input shaft of the angle sensor is fixedly arranged on the surface of the second adjusting part, and a deflection tooth slot is arranged on the surface of the sleeve seat.
The beneficial effects obtained by the invention are as follows:
1. according to the invention, by arranging the novel tool structure, the surfaces of the steering cylinder and the trim cylinder are respectively clamped by the first tool clamp and the second tool clamp on the surfaces of the sliding rail, the first tool clamp and the second tool clamp can drag the first adjusting part, the second adjusting part and the measuring component to move along with deflection of the steering angle or the trim angle of the semi-submerged propeller propelling device, repeated calibration of the measuring structure is not needed, and the operation process is simple and practical.
2. According to the invention, the angle sensor and the rotary tooth sleeve structure are arranged on the surfaces of the second adjusting part and the measuring component, when the first tooling clamp and the second tooling clamp follow the deflection of the steering angle or the pitching angle of the semi-submerged propeller, the second adjusting part and the measuring component perform relative movement, the rotary tooth sleeve is driven to rotate by the transmission spherical tooth so as to indicate the indicating scale of the needle on the surface of the angle measuring disc, the movement condition can be directly observed, and the rotation quantity of the output shaft of the angle sensor can be displayed by an electric signal so as to measure the movement quantity in real time.
3. According to the invention, through arranging the novel first fixture clamp structure and the novel second fixture clamp structure, the locking cover is in threaded joint with the locking seat to realize the locking joint of the steering cylinder and the trim cylinder, and the abutting ring is used for rotating and locking, so that the stability of the fixture is improved, and the calibration state deviation of the measuring device caused by the movement of the steering cylinder and the trim cylinder is avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a tooling guide and a first adjustment portion according to one embodiment of the present invention;
FIG. 3 is a schematic view of a first tooling clamp according to an embodiment of the present invention;
FIG. 4 is a schematic view of a second adjustment portion and measurement assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a measuring assembly according to an embodiment of the present invention;
FIG. 6 is a schematic view of an angle sensor mounting structure according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating a measurement method according to an embodiment of the present invention.
Reference numerals:
1. tool guiding ruler; 2. a first adjusting part; 3. a second adjusting part; 4. a first tooling clamp; 5. a second working clamp; 6. a measurement assembly; 7. a slide rail; 8. an angle sensor;
21. a buckling block; 22. a first locking bolt; 31. a second locking bolt; 32. a tooth sleeve is rotated; 33. an angle measuring disc; 41. a holding seat; 42. a locking cover; 43. a connecting lug; 61. a slide block; 62. a ball fixing frame; 63. a driving ball tooth; 64. a sleeve seat;
321. an indicator needle; 411. a spinneret; 412. an elastic abutting piece; 413. a buckling groove; 414. a locking ejector pin; 421. a screw sleeve; 422. a pressing ring; 641. deflecting the tooth slot.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
The following describes an angle measurement tool for a semi-submersible propulsion device according to some embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1 to 7, the invention provides an angle measurement tool for a semi-submersible propulsion device, which comprises: the tool guide rule 1, the first adjusting part 2, the second adjusting part 3, the first tool clamping 4, the second tool clamping 5, the measuring assembly 6 and the sliding rail 7, wherein one ends of the first adjusting part 2 and the sliding rail 7 are fixedly provided with buckling blocks 21, the first tool clamping 4 and the second tool clamping 5 are respectively fixed on the surfaces of the first adjusting part 2 and the sliding rail 7 through the buckling blocks 21, the first tool clamping 4 and the second tool clamping 5 are identical in structure, the first adjusting part 2 and the second adjusting part 3 are slidably mounted on the surface of the tool guide rule 1, the measuring assembly 6 is slidably mounted on the surface of the sliding rail 7, one sides of the first adjusting part 2 and the second adjusting part 3 are respectively provided with a first locking bolt 22 and a second locking bolt 31, the surface of the second adjusting part 3 is rotatably provided with a rotating tooth sleeve 32, the surface of the second adjusting part 3 is provided with an angle measuring disc 33, and one side of the rotating tooth sleeve 32 is provided with an indicating needle 321 slidably mounted on the surface of the angle measuring disc 33;
the measuring assembly 6 comprises a sliding block 61, a ball fixing frame 62 and a transmission ball tooth 63, wherein the ball fixing frame 62 and the transmission ball tooth 63 are fixedly arranged on the top surface of the sliding block 61, a sleeve seat 64 is fixedly sleeved on the outer side of the transmission ball tooth 63, an angle sensor 8 is fixedly arranged on the surface of the sleeve seat 64, and one side of the rotary tooth sleeve 32 penetrates through a deflection tooth slot 641 to be meshed with the surface of the transmission ball tooth 63; the first tooling clamp 4 and the second tooling clamp 5 comprise a holding seat 41, a lock cover 42 and a connecting lug 43, one side of the connecting lug 43 is movably connected with the surface of the holding seat 41, the lock cover 42 is rotatably sleeved on the surface of the connecting lug 43, a wire head 411 is arranged on the surface of the holding seat 41, a threaded sleeve 421 matched with the wire head 411 is arranged on the inner side of the lock cover 42, and a buckling groove 413 matched with the buckling block 21 is formed in the bottom surface of the holding seat 41.
In this embodiment, the tool guiding ruler 1 is a straight ruler plate structure, the first tool clamping 4, the second adjusting part 3 and the first adjusting part 2 are arranged perpendicular to the surface direction of the tool guiding ruler 1, and scales are arranged on the surfaces of the tool guiding ruler 1 and the angle measuring disc 33.
In this embodiment, the surface of the driving button 63 is provided with a plurality of annular teeth, the surface of the rotating gear sleeve 32 is provided with gear teeth matched with the driving button 63, and the axis of the rotating gear sleeve 32 is positioned on the vertical bisector of the driving button 63.
Specifically, when the second tooling clamp 5 and the sliding rail 7 move along with the steering cylinder, the measuring assembly 6 deflects relative to the second adjusting part 3, the rotating tooth sleeve 32 is meshed with the transmission ball tooth 63 to enable the rotating tooth sleeve 32 to rotate, the deflection sliding of the indicating needle 321 on the surface of the angle measuring disc 33 displays angle scales, so that numerical values can be directly read conveniently, and meanwhile, the input shaft of the angle sensor 8 in the deflection of the measuring assembly 6 is fixed on the surface of the second adjusting part 3 to enable the input shaft of the angle sensor 8 to rotate relatively, and the angle sensor 8 can be utilized for outputting angle measurement electric signals.
In this embodiment, a U-shaped sleeve groove is formed on the inner side of the holding seat 41, a pressing ring 422 is formed on the bottom surface of the lock cover 42, and the bottom surface of the pressing ring 422 is serrated.
Specifically, the clamping seat 41 is utilized to clamp the tool on the surfaces of the steering cylinder and the trim cylinder to be tested, so that the tool guide rule 1 and the slide rail 7 are fixed on the surfaces of the steering cylinder and the trim cylinder to perform synchronous movement, repeated calibration work in the repeated testing process is avoided, and the working efficiency is improved.
In this embodiment, an elastic abutment piece 412 is fixedly mounted on one side of the holding seat 41, a locking top pin 414 is provided on the surface of the elastic abutment piece 412, the locking top pin 414 elastically abuts against the bottom surface of the abutment ring 422, and the elastic abutment piece 412 is W-shaped and has elasticity.
Specifically, the elastic propping piece 412 enables the locking propping pin 414 to be propped against the bottom surface of the propping ring 422, so that the locking cover 42 is prevented from rotating spontaneously, and the stability of the tool is improved.
In this embodiment, the input shaft of the angle sensor 8 is coaxial with the rotation shaft of the rotary sleeve 32, and the input shaft of the angle sensor 8 is fixedly mounted on the surface of the second adjusting portion 3, and the surface of the sleeve seat 64 is provided with the deflection tooth grooves 641.
Specifically, by the engagement of the angle sensor 8 with the rotary tooth cover 32, the deflection angle is intuitively reflected by the rotation of the rotary tooth cover 32 and the movement of the indicating needle 321, so that the movement amount is intuitively perceived, and real-time recording is performed.
The angle measurement method of the semi-submerged propeller propulsion device comprises the following steps:
when the angle measurement tool for the semi-submerged propeller propulsion device is used, a first tool clamp 4 and a second tool clamp 5 are respectively fixed on the surfaces of a steering cylinder and a pitching cylinder, a spiral rotation locking cover 42 is used for locking the surfaces of the steering cylinder and the pitching cylinder, a buckling block 21 at one end of a first adjusting part 2 and a sliding rail 7 is connected with buckling grooves 413 on the surfaces of the first tool clamp 4 and the second tool clamp 5, the measurement device is installed, after the installation is completed, the calibration is carried out, firstly, the hydraulic system drives the steering cylinder and the pitching cylinder to be positioned on the same straight line, the positions of the first tool clamp 4 and the second tool clamp 5 are slidingly adjusted, so that the initial states of a measurement assembly 6 and the sliding rail 7 are perpendicular to the surfaces of a tool guide rule 1, the tool guide rule 1 is arranged in parallel with the steering cylinder and the pitching cylinder, the locking cover 42 is fixedly locked in a volume screwed, and the locking state of the locking cover 42 is kept by abutting a top pin 414 on the surface of an elastic abutting piece 412 with a pressing ring 422;
measuring: the ship body hydraulic system drives the steering cylinder and the pitching cylinder to deflect, when the first tooling clamp 4 and the second tooling clamp 5 follow the steering angle or the pitching angle deflection of the semi-immersed propeller, the second adjusting part 3 and the measuring component 6 perform relative motion, the transmission ball gear 63 drives the rotating gear sleeve 32 to rotate so that the indication scale of the indication needle 321 on the surface of the angle measuring disc 33 can directly observe the motion condition, the rotation quantity of the output shaft of the angle sensor 8 can be displayed by an electric signal to perform real-time measurement of the motion quantity, and the steering angle or the pitching angle measurement can be calculated according to the measured motion quantity, the relative motion distance of the first adjusting part 2 and the second adjusting part 3 on the surface of the tooling guide ruler 1 and the relative motion distance of the measuring component 6 on the surface of the sliding rail 7.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (7)
1. Semi-submerged oar advancing device angle measurement frock, its characterized in that includes: the automatic gear sleeve comprises a tool guide rule (1), a first adjusting part (2), a second adjusting part (3), a first working clamping (4), a second working clamping (5), a measuring assembly (6) and a sliding rail (7), wherein one ends of the first adjusting part (2) and the sliding rail (7) are fixedly provided with buckling blocks (21), the first working clamping (4) and the second working clamping (5) are respectively fixed on the surfaces of the first adjusting part (2) and the sliding rail (7) through the buckling blocks (21), the structures of the first working clamping (4) and the second working clamping (5) are identical, the first adjusting part (2) and the second adjusting part (3) are slidably mounted on the surface of the tool guide rule (1), the measuring assembly (6) is slidably mounted on the surface of the sliding rail (7), one sides of the first adjusting part (2) and the second adjusting part (3) are respectively provided with a first locking bolt (22) and a second locking bolt (31), the surface of the second adjusting part (3) is rotatably provided with a surface of a toothed disc (32), and the surface of the toothed disc (33) is rotatably provided with a surface of the toothed disc (32) and the surface of the toothed disc (33) is rotatably provided with an indicating disc (33);
the measuring assembly (6) comprises a sliding block (61), a ball fixing frame (62) and a transmission ball tooth (63), wherein the ball fixing frame (62) and the transmission ball tooth (63) are fixedly arranged on the top surface of the sliding block (61), a sleeve seat (64) is fixedly sleeved on the outer side of the transmission ball tooth (63), an angle sensor (8) is fixedly arranged on the surface of the sleeve seat (64), and one side of the tooth rotating sleeve (32) penetrates through a deflection tooth groove (641) to be meshed with the surface of the transmission ball tooth (63).
2. The semi-submerged propeller angle measurement tool according to claim 1, wherein the tool guiding ruler (1) is of a straight ruler plate structure, the first tool clamping (4), the second adjusting part (3) and the first adjusting part (2) are arranged perpendicular to the surface direction of the tool guiding ruler (1), and scales are arranged on the surfaces of the tool guiding ruler (1) and the angle measuring disc (33).
3. The semi-submerged propeller angle measurement tool according to claim 1, wherein a plurality of annular tooth edges are arranged on the surface of the transmission spherical tooth (63), gear teeth matched with the transmission spherical tooth (63) are arranged on the surface of the gear rotating sleeve (32), and the axis of the gear rotating sleeve (32) is located on the vertical middle parting line of the transmission spherical tooth (63).
4. The semi-submerged propeller angle measurement tool according to claim 1, wherein the first tool clamp (4) and the second tool clamp (5) comprise a holding seat (41), a lock cover (42) and a connecting lug (43), one side of the connecting lug (43) is movably connected with the surface of the holding seat (41), the lock cover (42) is rotationally sleeved on the surface of the connecting lug (43), a thread head (411) is arranged on the surface of the holding seat (41), a thread sleeve (421) matched with the thread head (411) is arranged on the inner side of the lock cover (42), and a buckling groove (413) matched with the buckling block (21) is formed in the bottom surface of the holding seat (41).
5. The semi-submerged propeller angle measurement tool of claim 4, wherein the inner side of the holding seat (41) is provided with a U-shaped sleeve groove, the bottom surface of the lock cover (42) is provided with a pressing ring (422), and the bottom surface of the pressing ring (422) is in a zigzag shape.
6. The semi-submerged propeller angle measurement tool according to claim 4, wherein an elastic supporting piece (412) is fixedly installed on one side of the holding seat (41), a locking top pin (414) is arranged on the surface of the elastic supporting piece (412), the locking top pin (414) is elastically abutted against the bottom surface of the supporting ring (422), and the elastic supporting piece (412) is W-shaped and has elasticity.
7. The semi-submerged propeller angle measurement tool according to claim 1, wherein the input shaft of the angle sensor (8) is coaxial with the rotating shaft of the rotating tooth sleeve (32), and the input shaft of the angle sensor (8) is fixedly mounted on the surface of the second adjusting part (3), and the surface of the sleeve seat (64) is provided with a deflection tooth groove (641).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310303419.3A CN116045777B (en) | 2023-03-27 | 2023-03-27 | Semi-immersed propeller angle measurement tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310303419.3A CN116045777B (en) | 2023-03-27 | 2023-03-27 | Semi-immersed propeller angle measurement tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116045777A CN116045777A (en) | 2023-05-02 |
| CN116045777B true CN116045777B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310303419.3A Active CN116045777B (en) | 2023-03-27 | 2023-03-27 | Semi-immersed propeller angle measurement tool |
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| CN (1) | CN116045777B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2922127B1 (en) * | 2007-10-15 | 2010-03-05 | Jaubjaub Consulting | MACHINE FOR BENDING A PROFILE AND BENDING TOOLS FOR SUCH A MACHINE |
| CN202244052U (en) * | 2011-08-12 | 2012-05-30 | 中国船舶重工集团公司第七○二研究所 | Light double-linkage transmission device for semi-submerged propeller |
| CN103293058B (en) * | 2013-05-08 | 2015-03-18 | 中国人民解放军空军工程大学 | Crack monitoring device |
| CN203946264U (en) * | 2014-06-25 | 2014-11-19 | 中国船舶重工集团公司第七○二研究所 | Altitude environment is partly soaked oar propulsive unit |
| CN204606180U (en) * | 2015-05-11 | 2015-09-02 | 武汉劳雷绿湾船舶科技有限公司 | Adjustablely partly soak oar propulsive unit |
| CN111780648B (en) * | 2020-07-14 | 2021-11-23 | 中国船舶科学研究中心 | Semi-submerged propeller propulsion unit angle measurement tool and measurement method |
| CN213323639U (en) * | 2020-10-29 | 2021-06-01 | 武汉劳雷绿湾船舶科技有限公司 | Fixed semi-submerged oar advancing device |
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2023
- 2023-03-27 CN CN202310303419.3A patent/CN116045777B/en active Active
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