阅读说明：本技术 一种用于拖曳水池试验的可升降浮冰槽道 (Liftable floating ice channel for towing tank test ) 是由 李明政 田于逵 于 2020-05-14 设计创作，主要内容包括：本发明涉及一种用于拖曳水池试验的可升降浮冰槽道,包括相对设置的池壁,池壁内设置拖曳水池,池壁内侧间隔布置沿着长度方向的浮冰挡板,浮冰挡板位于水面高度,两个浮冰挡板之间的区域构成浮冰槽道；两个浮冰挡板上分别安装升降机构,升降机构带动浮冰挡板上移离开水面；位于浮冰挡板外侧的池壁侧面上安装沿着长度方向的消波板；通过在拖曳水池内设置浮冰挡板构成浮冰槽道,并布放不同密度集的模拟浮冰,在拖曳水池的牵引拖车带动下牵引船模航行,从而开展冰载荷试验；在进行静水快速试验时,只需通过升降机构将浮冰挡板提升脱离水面即可；本发明使得拖曳水池的试验功能多样化,大大提高了拖曳水池的使用率和试验效率,操作方便,综合性能好。(The invention relates to a liftable floating ice channel for a towing tank test, which comprises oppositely arranged tank walls, wherein a towing tank is arranged in each tank wall, floating ice baffles along the length direction are arranged on the inner sides of the tank walls at intervals, the floating ice baffles are positioned at the height of the water surface, and an area between the two floating ice baffles forms a floating ice channel; the two floating ice baffles are respectively provided with a lifting mechanism, and the lifting mechanism drives the floating ice baffles to move upwards to leave the water surface; the wave-absorbing plate along the length direction is arranged on the side surface of the pool wall positioned outside the floating ice baffle; a floating ice baffle is arranged in a towing tank to form a floating ice channel, simulated floating ice with different density sets is distributed, and a towing ship model is towed to sail under the driving of a towing trailer of the towing tank, so that an ice load test is carried out; when a still water rapid test is carried out, the floating ice baffle plate is lifted to be separated from the water surface only through the lifting mechanism; the invention diversifies the test functions of the towing tank, greatly improves the utilization rate and the test efficiency of the towing tank, and has convenient operation and good comprehensive performance.)

1. The utility model provides a liftable float ice channel way for drag water pond is experimental, includes relative pool wall (1) that sets up, is provided with drag water pond, its characterized in that in pool wall (1): floating ice baffles (3) along the length direction are arranged on the opposite inner sides of the two side pool walls (1) at intervals, the floating ice baffles (3) are positioned at the height of the water surface (4) of the towing pool, and a floating ice channel is formed in the area between the two floating ice baffles (3); the two floating ice baffles (3) are respectively provided with a lifting mechanism (5), and the lifting mechanism (5) drives the floating ice baffles (3) to move upwards to leave the water surface (4); the side surface of the pool wall (1) positioned outside the floating ice baffle (3) is provided with a wave-absorbing plate (2) along the length direction.

2. The liftable ice floding channel for the towing tank test as claimed in claim 1, wherein: the lifting mechanism (5) is structurally characterized in that: the device comprises base shafts (51) fixedly arranged at the top of a pool wall (1) at intervals along the length direction, wherein the inner ends of the base shafts (51) extend to the upper part of a towing pool, rocking bars (53) are rotatably arranged at the inner ends of the single base shafts (51), and the lower ends of the rocking bars (53) extend downwards into the towing pool; the floating ice baffle (3) is provided with support lugs (55) which correspond to the rocking rods (53) one by one at intervals along the length direction, and the single support lug (55) is rotatably connected with the bottom ends of the corresponding rocking rods (53); the ice floating device is characterized by further comprising a winch (6), wherein the winch (6) is located above the water surface (4), a steel wire rope (7) at the output end of the winch (6) is fixedly connected with the end of the ice floating baffle (3) or the bottom end of one of the rocking bars (53), and the winch (6) applies upward force along the length direction of the pool wall (1) to the connected ice floating baffle (3) or the rocking bar (53) through the steel wire rope (7).

3. The liftable ice floding channel for the towing tank test as claimed in claim 2, wherein: the winch (6) is installed on the wall surface of one side of the pool wall (1) through the base, and the winch (6) is installed at the end part of the pool wall (1) along the length direction; and a steel wire rope (7) of the winch (6) is fixedly connected with the bottom end of the rocker (53) close to the steel wire rope.

4. The liftable ice floding channel for the towing tank test as claimed in claim 2, wherein: the structure of the support lug (55) is as follows: comprises a horizontal base plate (551) fixedly mounted with the top of a floating ice baffle (3), and symmetrical lug plates (552) are extended upwards at intervals along the width direction of a towing tank above the base plate (551); the middle part of the bottom end of the rocker (53) extends downwards to form a vertical plate (531), the vertical plate (531) extends downwards to a position between the two ear plates (552), and the horizontal shaft (54) sequentially penetrates through the ear plates (552), the vertical plate (531) and the other ear plate (552).

5. The liftable ice floe channel for the towing tank test is characterized in that: nuts are screwed on the ends of the pin shafts (54) positioned outside the two lug plates (552).

6. The liftable ice floding channel for the towing tank test as claimed in claim 2, wherein: the inner end of the base shaft (51) extends outwards along the circumferential direction to form a baffle ring (511), the inner end of the base shaft (51) is fixedly provided with a baffle plate (52), and a rocker (53) is rotatably sleeved on the base shaft (51) between the baffle ring (511) and the baffle plate (52).

7. The liftable ice floding channel for the towing tank test as claimed in claim 2, wherein: the sections of the floating ice baffles (3) are of inverted L-shaped structures, and vertical arms of the two floating ice baffles (3) are oppositely arranged to form a floating ice channel of a vertical wall surface structure; the top of the horizontal arm of the single floating ice baffle (3) is fixedly provided with support lugs (55) at intervals along the length direction.

8. The liftable ice floding channel for the towing tank test as claimed in claim 2, wherein: the top of the unilateral pool wall (1) is embedded with a track pad beam (11) along the length direction, and the base shafts (51) are fixedly arranged on the track pad beam (11) at intervals; the axial direction of the base shaft (51) is perpendicular to the length direction of the track pad beam (11).

9. The liftable ice floding channel for the towing tank test as claimed in claim 1, wherein: the top surfaces of the wave-absorbing plates (2) at two sides are arranged to be of opposite and inward inclined structures, and a plurality of bulges are uniformly distributed on the top surface of a single wave-absorbing plate (2).

Technical Field

The invention relates to the technical field of ship model ice load test equipment, in particular to a liftable floating ice channel for a towing tank test.

Background

The towing tank is basic equipment for carrying out the rapid test research of the ship, and can measure the hydrodynamic coefficient acting on the ship model by assisting the towing ship model of the trailer to do uniform linear motion relative to the tank; generally, a slope type side wave absorbing plate is longitudinally arranged on the water surface of the side wall of a pool body of the towing pool and used for absorbing water surface wave making generated in the running process of a still water test due to a ship model.

With the development of scientific technology and shipping activities in the ice region of the polar region, the research on the ice breaking and sailing performance of ships in the ice region is increasingly deep. By means of the towing tank, simulated ice blocks with different distribution densities are laid on a certain range of water surface, and the ship model is towed by the trailer to sail in the simulated ice area, so that the load of the simulated ice on the ship model can be obtained. In the prior art, the side wall of the laid simulated ice area cannot form an effective vertical wall surface channel under the influence of a slope type side wave-absorbing plate longitudinally arranged on the side wall of the tank body of the towing tank, so that a large error is generated with a test simulation environment, and a large influence is generated on a ship model ice breaking load test result.

Disclosure of Invention

The applicant provides a rational in infrastructure liftable floating ice channel that is used for towing the experimental pond to the shortcoming among the above-mentioned prior art of production to effectively with towing the pond extension for usable floating ice channel, make towing the experimental function diversification in pond, improved towing the rate of utilization and the efficiency of software testing in pond greatly.

The technical scheme adopted by the invention is as follows:

a liftable floating ice channel for a towing tank test comprises oppositely arranged tank walls, wherein a towing tank is arranged in each tank wall, floating ice baffles along the length direction are arranged on the opposite inner sides of the tank walls on the two sides at intervals, the floating ice baffles are positioned at the water surface height of the towing tank, and a region between the two floating ice baffles forms a floating ice channel; the two floating ice baffles are respectively provided with a lifting mechanism, and the lifting mechanisms drive the floating ice baffles to move upwards to leave the water surface; the side surface of the pool wall positioned outside the floating ice baffle is provided with a wave-absorbing plate along the length direction.

As a further improvement of the above technical solution:

the lifting mechanism has the structure that: the device comprises base shafts fixedly arranged at the top of the tank wall at intervals along the length direction, wherein the inner end of each base shaft extends to the upper part of a towing tank; the floating ice baffle is provided with support lugs which are in one-to-one correspondence with the rocking rods at intervals along the length direction, and the single support lug is rotatably connected with the bottom ends of the corresponding rocking rods; the device is characterized by further comprising a winch, wherein the winch is located above the water surface, a steel wire rope at the output end of the winch is fixedly connected with the end of the floating ice baffle or the bottom end of one of the rocking bars, and the winch applies upward force along the length direction of the pool wall to the connected floating ice baffle or rocking bar through the steel wire rope.

The winch is arranged on the wall surface of one side of the pool wall through the base, and the winch is arranged at the end part of the pool wall along the length direction; and a steel wire rope of the winch is fixedly connected with the bottom end of the rocker close to the steel wire rope.

The structure of the support lug is as follows: the device comprises a horizontal base plate fixedly mounted on the top of a floating ice baffle, and symmetrical lug plates which are upwards extended at intervals along the width direction of a towing tank are arranged above the base plate; the middle part of the bottom end of the rocker extends downwards to form a vertical plate, the vertical plate extends downwards to a position between the two lug plates, and the horizontal part sequentially penetrates through the lug plates, the vertical plate and the other lug plate to be provided with a pin shaft.

And nuts are screwed on the end parts of the pin shafts positioned outside the two lug plates.

The inner end part of the base shaft extends outwards along the circumferential direction to form a baffle ring, the inner end of the base shaft is fixedly provided with a baffle plate, and a rocker is rotatably sleeved on the base shaft between the baffle ring and the baffle plate.

The sections of the floating ice baffles are of inverted L-shaped structures, and vertical arms of the two floating ice baffles are oppositely arranged to form a floating ice channel of a vertical wall surface structure; the top of the horizontal arm of the single floating ice baffle is fixedly provided with support lugs at intervals along the length direction.

The top of the unilateral pool wall is embedded with a track pad beam along the length direction, and the base shafts are fixedly arranged on the track pad beam at intervals; the axial direction of the base shaft is vertical to the length direction of the track pad beam.

The top surfaces of the wave-absorbing plates on the two sides are arranged into opposite and inward inclined structures, and a plurality of bulges are uniformly distributed on the top surface of a single wave-absorbing plate.

The invention has the following beneficial effects:

the invention has compact and reasonable structure and convenient operation, forms a floating ice channel by arranging the floating ice baffle in the towing tank, lays simulated floating ice with different density sets, and pulls the ship model to sail under the driving of the towing trailer of the towing tank, thereby developing an ice load test; when a still water rapid test is carried out, the floating ice baffle plate is lifted to be separated from the water surface only through the lifting mechanism, and then the fixed wave absorbing plate can be used for absorbing wave generated by the movement of the ship body; therefore, the towing tank is expanded into the floating ice channel which can be effectively used, so that the towing tank has diversified test functions, convenient operation and good comprehensive performance, and the utilization rate and the test efficiency of the towing tank are greatly improved;

the invention also comprises the following advantages:

the winch works, the bottom of the corresponding rocker is pulled by the steel wire rope, the rocker rotates upwards by taking the joint of the rocker and the corresponding base shaft as the circle center, and the rocker rotates relatively by taking the joint of the rocker and the floating ice baffle as the circle center, so that the floating ice baffle moves towards the force application direction of the steel wire rope under the pulling action of the rocker, and the floating ice baffle is separated from the water surface in the height direction;

the blocking ring on the circumferential direction of the base shaft and the blocking piece at the inner end of the blocking ring are used for limiting the axial displacement of the rocker relative to the base shaft, and the blocking piece also prevents the rocker from axially falling off relative to the base shaft;

the bottoms of the rocking bars support the floating ice baffle together through the support lugs.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view taken along a-a in fig. 1.

Fig. 3 is a schematic structural diagram of the lifting mechanism of the present invention.

Fig. 4 is a partially enlarged view of a portion B in fig. 3.

FIG. 5 is a schematic view of the ice floe baffle of the present invention in a raised condition.

Wherein: 1. a tank wall; 2. a wave-absorbing plate; 3. a floating ice baffle; 4. a water surface; 5. a lifting mechanism; 6. a winch; 7. a wire rope; 11. a track pad beam; 51. a base shaft; 511. a baffle ring; 52. a baffle plate; 53. a rocker; 531. a vertical plate; 54. a pin shaft; 55. supporting a lug; 551. a substrate; 552. an ear plate.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 and fig. 2, the liftable floating ice channel for the towing tank test of the embodiment includes tank walls 1 which are oppositely arranged, a towing tank is arranged in the tank walls 1, floating ice baffles 3 along the length direction are arranged at intervals on opposite inner sides of the tank walls 1 on two sides, the floating ice baffles 3 are positioned at the height of a water surface 4 of the towing tank, and an area between the two floating ice baffles 3 forms the floating ice channel; the two floating ice baffles 3 are respectively provided with a lifting mechanism 5, and the lifting mechanism 5 drives the floating ice baffles 3 to move upwards to leave the water surface 4; the wave-absorbing plate 2 along the length direction is arranged on the side surface of the pool wall 1 positioned outside the floating ice baffle 3; a floating ice baffle 3 is arranged in a towing tank to form a floating ice channel, simulated floating ice with different density sets is distributed, and a towing ship model is towed to sail under the driving of a towing trailer of the towing tank, so that an ice load test is carried out; when a still water rapid test is carried out, only the floating ice baffle 3 needs to be lifted to be separated from the water surface 4 through the lifting mechanism 5, and then the fixed wave absorbing plate 2 can be used for absorbing wave generated by the movement of the ship body; thereby expanding the towing tank into an efficiently usable ice floe channel.

As shown in fig. 3, the lifting mechanism 5 has the structure: the device comprises base shafts 51 fixedly arranged at the top of the pool wall 1 at intervals along the length direction, wherein the inner ends of the base shafts 51 extend to the upper part of a towing pool, rocking bars 53 are rotatably arranged at the inner ends of the single base shafts 51, and the lower ends of the rocking bars 53 extend downwards into the towing pool; the floating ice baffle 3 is provided with support lugs 55 which are in one-to-one correspondence with the rocking rods 53 at intervals along the length direction, the single support lug 55 is rotatably connected with the bottom ends of the corresponding rocking rods 53, and the bottoms of the rocking rods 53 support the floating ice baffle 3 together through the support lugs 55; the ice floating device is characterized by further comprising a winch 6, wherein the winch 6 is located above the water surface 4, a steel wire rope 7 at the output end of the winch 6 is fixedly connected with the end of the ice floating baffle 3 or the bottom end of one of the rocking bars 53, and the winch 6 applies upward force along the length direction of the pool wall 1 to the connected ice floating baffle 3 or the rocking bar 53 through the steel wire rope 7.

The winch 6 is arranged on the wall surface of one side pool wall 1 through the base, and the winch 6 is arranged at the end part of the pool wall 1 along the length direction; and a steel wire rope 7 of the winch 6 is fixedly connected with the bottom end of the adjacent rocker 53.

The winch 6 works, the bottom of the corresponding rocker 53 is pulled by the steel wire rope 7, the rocker 53 rotates upwards by taking the joint of the rocker 53 and the corresponding base shaft 51 as the circle center, and simultaneously the rocker 53 also rotates relatively by taking the joint of the rocker 53 and the floating ice baffle 3 as the circle center, so that the floating ice baffle 3 moves towards the force application direction of the steel wire rope 7 under the pulling action of the rocker 53, and the floating ice baffle 3 is separated from the water surface 4 in the height direction.

As shown in fig. 4, the structure of the lug 55 is: comprises a horizontal base plate 551 fixedly mounted on the top of the floating ice baffle 3, and symmetrical ear plates 552 which extend upwards along the width direction of the towing tank above the base plate 551 at intervals; the rocker 53 bottom end middle part downwardly extending has riser 531, and riser 531 extends downwards between two otic placodes 552, and the level runs through otic placode 552, riser 531 and another otic placode 552 in proper order and installs round pin 54.

The end of the pin 54 outside the two lugs 552 is threaded with a nut.

A baffle ring 511 extends outwards along the circumferential direction at the inner end of the base shaft 51, a baffle piece 52 is fixedly arranged at the inner end of the base shaft 51, and a rocker 53 is rotatably sleeved on the base shaft 51 between the baffle ring 511 and the baffle piece 52; the stop ring 511 on the circumference of the base shaft 51 and the stop piece 52 on the inner end thereof are used for limiting the axial displacement of the rocker 53 relative to the base shaft 51, and the stop piece 52 also prevents the rocker 53 from axially falling out relative to the base shaft 51.

The section of the floating ice baffle 3 is of an inverted L-shaped structure, and vertical arms of the two floating ice baffles 3 are oppositely arranged to form a floating ice channel of a vertical wall surface structure; lugs 55 are fixedly arranged at the top of the horizontal arm of the single floating ice baffle 3 at intervals along the length direction.

The top of the unilateral pool wall 1 is embedded with a track pad beam 11 along the length direction, and base shafts 51 are fixedly arranged on the track pad beam 11 at intervals; the axial direction of the base shaft 51 is perpendicular to the longitudinal direction of the track pad 11.

The top surfaces of the wave-absorbing plates 2 on the two sides are arranged to be opposite and inward inclined structures, and a plurality of bulges are uniformly distributed on the top surface of a single wave-absorbing plate 2.

The use principle of the invention is as follows:

when a still water test needs to be carried out, namely the floating ice channel needs to be lifted, the winch 6 works, the steel wire rope 7 at the output end of the winch pulls the bottom of the rocker 53 fixedly connected with the winch, the rocker 53 upwards rotates for a certain angle by taking the joint of the rocker 53 and the corresponding base shaft 51 as a circle center, and meanwhile, the rocker 53 also relatively rotates by taking the joint of the rocker 53 and the floating ice baffle 3 as a circle center, so that the floating ice baffle 3 moves towards the force application direction of the steel wire rope 7 under the pulling action of the rocker 53, the movement of the floating ice baffle 3 drives the rest of the rockers 53 to upwards rotate in the same direction relative to the corresponding base shaft 51, and the floating ice baffle 3 further moves upwards in the height direction and is; when the floating ice baffle 3 rises to a designated height above the water surface 4, the winch 6 stops working, and the floating ice baffle 3 is stabilized at the height, as shown in fig. 5;

when an ice load test is required, namely the floating ice channel is required to be descended, the winch 6 works reversely, the steel wire rope 7 releases the tension of the corresponding rocker 53, the rocker 53 rotates reversely relative to the floating ice baffle 3 and the base shaft 51 under the action of the gravity of the floating ice baffle 3, and the floating ice baffle 3 descends; when the floating ice baffle 3 falls to a designated height of the water surface 4 or the rocker 53 rotates to a vertical position, the winch 6 stops working, as shown in fig. 2.

The invention expands the towing tank into the floating ice channel which can be effectively used, so that the towing tank has diversified test functions, convenient operation and good comprehensive performance, and greatly improves the utilization rate and the test efficiency of the towing tank.

The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.