CN201116812Y - Screw-type ice-scraping knife for ice-making machine - Google Patents

Abstract

The utility model discloses an ice maker spiral type ice-scraping knife, wherein ice-scraping teeth whose cross sections are a taper are arranged on the external surface of a knife body in a spiral form, and the taper included angle of the ice-scraping teeth with the tangent perpendicular direction is 38 degrees to 42 degrees. The ice-scraping included angle is optimized, thereby increasing the loading ability of the ice-scraping knife, reducing the affect of torsion in the rotation process of a main shaft to the ice-scraping knife, increasing the ice-scraping ability of the ice-scraping knife, and making ice blocks not adhere on the ice-scraping knife and well fall off.

Description

The spiral Ice scraping knife of ice machine

Technical field

The utility model relates to ice machine, what relate in particular to is the Ice scraping knife of ice machine.

Background technology

Ice machine is a kind of equipment that manually manufactures ice that uses Refrigeration Technique, directly evaporate by cold-producing medium, with water with the heat that has take away the cooling ice making, its ice making speed is a kind of rapid ice making technology far faster than the indirect ice making of salt solution.Rapid ice making the earliest is to carry out in a pond that has a vertical evaporation tube, uses the hot gas ice-melt behind the water freezing of pond, and again to the pond water filling, the ice of making just floats on the pond; Released the bucket formula rapid ice making of adopting the finger-type evaporimeter afterwards again, and made ice machine step into the device stage.Through years of development, ice machine has been the rapid ice making technology of a maturation.The development of current rapid ice maker is not only numerous in variety, specific energy consumption reduces, it is very convenient to manipulate, product line is more complete, makes the application of ice machine also more extensive, and the kind of ice also emerges in an endless stream.

2000, snowman company introduced the ice machine production technology from Japan, had filled up the blank of China's rapid ice making technology.At present, domestic existing five tame ice machine manufacturing enterprises, the brand of production comprises " snowman ", " match-maker ", " Glan spy ", " Ai Sinuo ", " auspicious friend ".The ice machine of producing is mainly slice ice machine, plate ice machine.

The slice ice machine utilization is the most extensive, and it is a continous way rapid ice making device, and production thickness is the sheet phosphorus shape ice about 1.5mm.Ice maker is a drum type brake heat exchanger, and water sprays its surface, be subjected to low-temperature refrigerant cooling in the wall to form ice sheet after, by skates ice is scraped.Slice ice machine utilization scope: it is fresh-keeping etc. that middle-size and small-size slice ice machine is mainly used in food processing, marine industry, commodity, and the full length film ice maker is mainly used in industries such as concrete cooling (build a dam, Tunnel Engineering, science of bridge building), long range fishing, chemical dyestuff.

Slice ice machine is scraped the spiral Ice scraping knife of ice usefulness, and its taper angle of scraping on the helix tangent line vertical direction of ice-spur is taken at 30 °, 36 °, 45 °, and the major defect that the Ice scraping knife of this angle exists has: stressed unreasonable, it is bad to scrape the ice effect; Folder ice in helicla flute makes the ice of ice bucket inwall be not easy to drop easily, and also the ice effect is scraped in influence.

The utility model content

The purpose of this utility model is to provide a kind of novel ice machine spiral Ice scraping knife, by changing its taper angle, improves the ice ability of scraping.

The utility model adopts following technical scheme: the spiral Ice scraping knife of a kind of ice machine, be provided with the ice-spur of scraping that cross section is taper in blade outer surface helical form, and the described taper angle of scraping the tangent line vertical direction of ice-spur and its helix is 38 °～42 °.

Comparative optimization be that the described taper angle of scraping ice-spur is 40 °.

Further improve as the utility model, describedly scrape the tangent line of ice-spur helix and the included angle of thread of Ice scraping knife axial line can be 14 °～17 °.Comparative optimization be that the described included angle of thread is 15 °.

The spiral Ice scraping knife of ice machine of the present utility model has following beneficial effect:

(1) by optimizing the taper angle of scraping ice-spur on the Ice scraping knife, take into account the intensity of scraping ice-spur and to the active force of ice face, make the stressed of Ice scraping knife and to ice to scrape ice force more reasonable, open ice effective and borneol big or small evenly;

(2) by optimizing spiral angle, reduced main shaft torsion in rotary course the influence of Ice scraping knife has been improved the ice-breaking capacity of Ice scraping knife, made ice cube be difficult for being bonded on the skates, the ice that falls is better.

Description of drawings

Fig. 1 is the structural representation of the spiral Ice scraping knife of ice machine of the present utility model.

Fig. 2 is the vertical view of Ice scraping knife shown in Figure 1.

Fig. 3 is the partial enlarged drawing at the I place of Fig. 2.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the spiral Ice scraping knife of ice machine of the present utility model is described further, to help understanding content of the present utility model.

As depicted in figs. 1 and 2, be the spiral Ice scraping knife of ice machine, have axle center hole 2 to be used to install Ice scraping knife in installation shaft in the axle center of Ice scraping knife 1, Ice scraping knife 1 outer surface have eight scrape ice-spur 3 shape setting in the shape of a spiral, with the shape of cross section of scraping ice-spur be taper.As shown in Figure 3, with the tangent line vertical direction of scraping the ice-spur helix on scrape ice-spur taper angle α (angle of thread that is equivalent to screw thread) be 38 °-42 °, preferred 40 °.If angle α is excessive, the angle of scraping between icing on ice-spur surface and the ice maker is little, and is not only unreasonable to ice face active force, needs bigger power, scrapes the ice weak effect.If this angle is too small, scrape that ice-spur intensity is low, bearing capacity is poor.

As shown in Figure 1, the tangent line of the helix of scraping ice-spur of spirality Ice scraping knife and the spiral angle β of Ice scraping knife axial line can be 14 °～17 °, are preferably 15 °.This angle is excessive, and ice is difficult for easily putting aside in helicla flute along the helicla flute landing of scraping between the ice-spur, thus sticking cutter holder ice, and the ice effect is scraped in influence.Angle is too small, and the borneol crushing effect is also bad.

Claims (4)

1, the spiral Ice scraping knife of a kind of ice machine is provided with the ice-spur of scraping that cross section is taper in blade outer surface helical form, it is characterized in that: the described taper angle of scraping the tangent line vertical direction of ice-spur and its helix is 38 °～42 °.

2, the spiral Ice scraping knife of ice machine as claimed in claim 1 is characterized in that: the described taper angle of scraping ice-spur is 40 °.

3, the spiral Ice scraping knife of ice machine as claimed in claim 1 or 2 is characterized in that: describedly scrape the tangent line of ice-spur helix and the included angle of thread of Ice scraping knife axial line is 14 °～17 °.

4, the spiral Ice scraping knife of ice machine as claimed in claim 1 or 2 is characterized in that: describedly scrape the tangent line of ice-spur helix and the included angle of thread of Ice scraping knife axial line is 15 °.

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