CN107703024B - Ice density measuring device - Google Patents
Ice density measuring device Download PDFInfo
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- CN107703024B CN107703024B CN201710842052.7A CN201710842052A CN107703024B CN 107703024 B CN107703024 B CN 107703024B CN 201710842052 A CN201710842052 A CN 201710842052A CN 107703024 B CN107703024 B CN 107703024B
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- ice
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- pressing plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
Abstract
An ice density measuring device comprises two parts, namely an ice cutting device and an ice pressing device, wherein the ice cutting device is structured as follows: the ice-cutting device comprises a pressing plate, wherein a round hole is formed in the middle of the pressing plate, a square groove with an ice-cutting blade is formed in the bottom of the middle position of the pressing plate, an outer ring is arranged at the root of the periphery of the square groove and locked with the pressing plate through a fixing screw, and a reinforcing rib is further arranged outside the square groove; the ice pressing device is structurally characterized in that: the ice pressing machine comprises a base, a guide pillar vertical to the base is installed at one end of the base through a round nut, a rack is installed at the upper end of the guide pillar, the rack is meshed with the guide pillar, the ice pressing machine further comprises a moving frame, a gear is installed at the top of the moving frame, the right end of the moving frame is connected with the guide pillar through a right hand wheel, and an ice pressing tentacle is installed at the left end of the moving frame through a left hand wheel. Through the adoption of the cooperation of the ice cutting device and the ice pressing device, the measurement can be conveniently completed on the ice pressing device, so that the density value can be conveniently calculated.
Description
Technical Field
The invention relates to the technical field of density measuring devices, in particular to an ice density measuring device for measuring the density of ice.
Background
With the development of the ice breaker technology in high-grade ice areas in China, ship design engineers put higher technical requirements on a pool model test. The test pool not only needs to carry out model tests in conventional ice-free water areas, but also can simulate sea ice environment in a test room, so that the prediction and evaluation of the ice breaking performance of the ship can be realized. In order to ensure that the model ice is similar to the real sailing situation along with the overturning and extruding motion of the ship body during the ship model test, the model ice is required to be consistent with sea ice in density. Ice density is an important indicator of experimental measurements.
It is conventional practice to obtain the ice density by measuring the mass and volume of the ice pieces and then using a formula calculation. Although the principle of this measurement method is very simple, in actual measurement, an actual measurement error is generated due to melting, breaking and irregular volume of ice, so that the measurement error is caused. Therefore, at present, the ice density is mainly measured by a weighing method.
To accurately measure the density of ice by experiment, the ice density measurement was divided into 3 steps. The main steps are described as follows:
(1) placing a container containing a certain mass of water solution on an electronic scale, pressing a peeling key to zero the weight of the electronic scale, i.e. m1＝0；
(2) Cutting ice with tool to obtain ice block as ice block to be measured, placing the ice block into container containing water solution with certain mass, and measuring to obtain mass m2；
(3) Immersing the ice blocks to be measured into the water in the container by using a tool, and synchronously measuring to obtain the mass m3。
Wherein m is2＝ρi·Vi；m3＝ρw·g·Vi/g。
Therefore, the temperature of the molten metal is controlled,
in the above formula, ρwIs the density of the aqueous solution, piIs the density of ice, ViIs the volume of ice.
The method only needs to measure the mass of the two steps, record the value indicated by the electronic scale and obtain the ice density through calculation. There are three problems, however:
(1) easily resulting in irregularities in the cut ice cubes. Because the density of the cut ice sample needs to be measured, and a subsequent dynamic friction coefficient test is also needed, if the ice sample is irregular and the contact surface with the model is not large enough, the dynamic friction coefficient test cannot be carried out.
(2) Test errors are liable to occur. When the ice cubes are immersed into water through manual operation, the water discharging volume is larger than the volume of the ice cubes due to the fact that the tools are also immersed into the water, and the quality value obtained at the moment has certain errors, so that the ice density value obtained through subsequent calculation is influenced.
(3) The operation is inconvenient. Since the test process is performed manually, the mass of the ice cubes needs to be measured simultaneously when the ice cubes are immersed in water, which causes inconvenience in operation.
Disclosure of Invention
The applicant aims at the defects in the prior art and provides an ice density measuring device, so that regular cutting of collected ice samples can be realized, the operation is convenient, and the test error can be well reduced when the weighing method is used for measuring the mass of two steps, so that the accurate ice density value is obtained. The invention has certain engineering practicability and application value in the field of test and test technology development.
The technical scheme adopted by the invention is as follows:
an ice density measuring device comprises two parts, namely an ice cutting device and an ice pressing device, wherein the ice cutting device is structured as follows: the ice-cutting device comprises a pressing plate, wherein a round hole is formed in the middle of the pressing plate, a square groove with an ice-cutting blade is formed in the bottom of the middle position of the pressing plate, an outer ring is arranged at the root of the periphery of the square groove and locked with the pressing plate through a fixing screw, and a reinforcing rib is further arranged outside the square groove;
the ice pressing device is structurally characterized in that: the ice pressing machine comprises a base, a guide pillar vertical to the base is installed at one end of the base through a round nut, a rack is installed at the upper end of the guide pillar, the rack is meshed with the guide pillar, the ice pressing machine further comprises a moving frame, a gear is installed at the top of the moving frame, the right end of the moving frame is connected with the guide pillar through a right hand wheel, and an ice pressing tentacle is installed at the left end of the moving frame through a left hand wheel.
The further technical scheme is as follows:
the pressing plate is of a rectangular structure.
A section of plane is processed at the upper end of the guide pillar, and the rack is installed on the plane.
The mounting structure of gear does: the gear is connected with the rotating shaft through a key, and the rotating shaft is connected with the movable frame through a bearing, a blank cap, a transparent cap and a locking screw; the handle is directly connected to the rotating shaft.
Press ice and touch one-in-one formula structure, it includes the spliced pole at top, the bottom of spliced pole is extended there is the connecting axle, and the bottom of connecting axle is extended there is triangle-shaped to touch the hand, the bottom that triangle-shaped touched the hand is opened porosely, thin pole is installed to downthehole interference fit, thin pole bottom is the plane to with ice-cube surface butt.
The invention has the following beneficial effects:
the ice cutting device is compact and reasonable in structure and convenient to operate, and can conveniently finish measurement work on the ice pressing device by adopting the matching work of the ice cutting device and the ice pressing device, so that the density value can be conveniently calculated and obtained. The operation is simplified, and the working reliability is improved.
The ice cutting device can conveniently and quickly cut regular ice sample blocks, is labor-saving and efficient, and meanwhile, the regular ice blocks provide guarantee for subsequent tests such as dynamic friction coefficients and the like.
When the ice pressing hand is used, the right hand wheel is screwed when the ice blocks are just pressed into water by the ice pressing hand, and the volume of water discharged by the ice blocks is equal to that of the ice blocks, so that the test error caused by the increase of the water discharge volume due to the fact that the ice blocks are immersed into the water by using a tool is avoided.
When the ice cube measuring device is used, after the ice cube reaches the proper height, the right hand wheel is screwed first, and then the quality of the ice cube is measured, so that the quality of the ice cube is measured synchronously without manually immersing the ice cube into water, and the operation is more convenient.
Drawings
Fig. 1 is a front view of an ice-pressing device according to the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a diagram of the application of the ice pressing device of the present invention.
FIG. 4 is a front view of the ice pressing tentacle of the present invention.
Fig. 5 is a front view of the ice cutting device according to the present invention.
Fig. 6 is a top view of fig. 5.
Wherein: 1. a base; 2. a round nut; 3. pressing ice to touch the hands; 301. connecting columns; 302. a connecting shaft; 303. a triangular tentacle; 304. a thin rod; 401. a left hand wheel; 402. a right hand wheel; 5. a movable frame; 6. a gear; 7. a guide post; 8. locking the screw; 9. covering the blank with a cover; 10. a bearing; 11. a key; 12. a transparent cover; 13. a rotating shaft; 14. a handle; 15. an electronic scale; 16. pressing a plate; 17. an outer ring; 18. a set screw; 19. reinforcing ribs; 20. a square groove; 21. a circular hole.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 6, the ice density measuring device of the present embodiment includes two parts, namely an ice cutting device and an ice pressing device, and the ice cutting device has the following structure: the ice-cutting machine comprises a pressing plate 16, wherein a circular hole 21 is formed in the middle of the pressing plate 16, a square groove 20 with an ice-cutting blade is formed in the bottom of the middle of the pressing plate 16, an outer ring 17 is arranged at the root of the periphery of the square groove 20, the outer ring 17 is locked with the pressing plate 16 through a fixing screw 18, and a reinforcing rib 19 is further arranged outside the square groove 20;
the structure of the ice pressing device is as follows: including base 1, base 1's one end is installed rather than vertically guide pillar 7 through round nut 2, and the rack is installed to the upper end of guide pillar 7, rather than meshed gear 6, still including removing frame 5, removes the top installation gear 6 of frame 5, and the right-hand member that removes frame 5 passes through right side hand wheel 402 to be connected with guide pillar 7, and the left end that removes frame 5 passes through left side hand wheel 401 installation and presses ice tentacle 3.
The upper end of the guide post 7 is processed to form a section of plane, and the rack is arranged on the plane.
The mounting structure of the gear 6 is: the gear 6 is connected with a rotating shaft 13 through a key 11, and the rotating shaft 13 is connected with the movable frame 5 through a bearing 10, a blank cap 9, a transparent cap 12 and a locking screw 8; the handle 14 is directly connected to the rotating shaft 13.
The design of the round hole 21 is convenient for lightly pushing out the ice through a small wood strip after the ice is cut.
The mutual positions of the movable frame 5 and the guide post 7 can be adjusted by shaking the handle 14;
the left hand wheel 401 and the right hand wheel 402 are respectively arranged on the left side and the right side of a moving frame 5, the left hand wheel 401 is used for fixing the mutual positions of an ice pressing tentacle 3 and the moving frame 5, and the right hand wheel 402 is used for fixing the mutual positions of the moving frame 5 and a guide post 7;
three ice pressing thin rods 304 at the lower end of the ice pressing tentacle 3 are in interference fit with a fixing part at the upper end, and the mutual positions of the ice pressing tentacle 3 and the moving frame 5 can be finely adjusted through a left hand wheel 401.
In practical use, an electronic scale 15 is placed on the base 1, a container containing a certain mass of aqueous solution is placed on the electronic scale 15, and the 'peeling' key is pressed to zero the weight of the electronic scale 15. After the ice making is finished, a regular ice sample block is cut out through the ice cutting device, the ice block is put into water, and the mass m is obtained through measurement2. Then the height of the movable frame 5 is roughly adjusted by shaking the handle 14, when the ice pressing tentacle 3 is about to completely immerse ice blocks in water, the right hand wheel 402 is screwed, then the left hand wheel 401 is finely adjusted to ensure that the ice pressing tentacle 3 just immerses the ice blocks in water completely, the left hand wheel 401 is screwed, and the mass m is obtained by measurement at the moment3。
By means of the formula (I) and (II),
the density of the ice can be calculated.
In the above formula, ρwIs the density of the aqueous solution, piIs the density of ice.
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.
Claims (1)
1. An ice density measuring device, characterized by: including cutting ice device and pressing ice device two parts, the structure of cutting ice device is: the ice-cutting machine is characterized by comprising a pressing plate (16), wherein a round hole (21) is formed in the middle of the pressing plate (16), a square groove (20) with an ice-cutting blade is formed in the bottom of the middle position of the pressing plate (16), an outer ring (17) is arranged at the root of the periphery of the square groove (20), the outer ring (17) is locked with the pressing plate (16) through a fixing screw (18), and a reinforcing rib (19) is further arranged outside the square groove (20);
the ice pressing device is structurally characterized in that: the ice pressing device comprises a base (1), wherein a guide post (7) vertical to the base is arranged at one end of the base (1) through a round nut (2), a rack and a gear (6) meshed with the guide post are arranged at the upper end of the guide post (7), the ice pressing device also comprises a moving frame (5), the gear (6) is arranged at the top of the moving frame (5), the right end of the moving frame (5) is connected with the guide post (7) through a right hand wheel (402), and an ice pressing touch hand (3) is arranged at the left end of the moving frame (5) through a left hand wheel (401); the pressing plate (16) is of a rectangular structure; a section of plane is processed at the upper end of the guide post (7), and the rack is arranged on the plane; the mounting structure of the gear (6) is as follows: the gear (6) is connected with a rotating shaft (13) through a key (11), and the rotating shaft (13) is connected with the movable frame (5) through a bearing (10), a blank cap (9), a transparent cap (12) and a locking screw (8); the handle (14) is directly connected to the rotating shaft (13); the ice pressing tentacle (3) is of an integrated structure and comprises a connecting column (301) at the top, a connecting shaft (302) extends from the bottom of the connecting column (301), a triangular tentacle (303) extends from the bottom of the connecting shaft (302), a hole is formed in the bottom of the triangular tentacle (303), a thin rod (304) is arranged in the hole in an interference fit manner, the bottom end of the thin rod (304) is a plane and is abutted to the surface of an ice block;
an electronic scale (15) is placed on the base (1), a container filled with a certain mass of aqueous solution is placed on the electronic scale (15), and the weight of the electronic scale (15) is set to zero by pressing a peeling key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710842052.7A CN107703024B (en) | 2017-09-18 | 2017-09-18 | Ice density measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710842052.7A CN107703024B (en) | 2017-09-18 | 2017-09-18 | Ice density measuring device |
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| CN107703024A CN107703024A (en) | 2018-02-16 |
| CN107703024B true CN107703024B (en) | 2020-02-07 |
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| CN201710842052.7A Active CN107703024B (en) | 2017-09-18 | 2017-09-18 | Ice density measuring device |
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| CN111965069B (en) * | 2020-08-28 | 2021-02-02 | 中国科学院西北生态环境资源研究院 | Device and method for measuring density of hard snow ice on glacier shallow layer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101078677A (en) * | 2007-07-02 | 2007-11-28 | 吉林大学 | Solid density measuring method |
| CN201229284Y (en) * | 2008-06-24 | 2009-04-29 | 上海舜宇恒平科学仪器有限公司 | Novel density measurement device |
| CN202693356U (en) * | 2012-05-21 | 2013-01-23 | 薛悌尧 | Quantitative quick and convenient soil sampler |
| CN103323368A (en) * | 2013-06-17 | 2013-09-25 | 湖南工业大学 | Measurement method for density of solid material |
| CN206132550U (en) * | 2016-09-05 | 2017-04-26 | 大连聚兴科技有限公司 | Close measuring device |
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