JPS6132304Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention includes an ice-shaving auger that scrapes ice that grows on the inner wall of the cooling cylinder. An upper bearing with a plurality of ribs that protrude in the direction and contact the inner wall of the cylinder is arranged in rotation, and the shaved ice is compressed in an ice compression passage defined by the adjacent ribs, the circumferential surface, and the inner wall of the cooling cylinder. This relates to an auger-type ice maker that makes dense ice.

Conventionally, in ice makers where the ice cutting auger and the upper bearing are made of the same material (e.g. stainless steel), abnormal wear occurs on the upper surface of the auger and the lower surface of the upper bearing, which causes metal powder to mix with the ice. It had some drawbacks.

The present invention relates to an auger-type ice maker that exhibits remarkable effects when the ice-shaving auger and the upper bearing are made of the same material.One embodiment of the present invention will be described below with reference to the drawings. 1 is a cooling cylinder with a refrigerant evaporation tube 2 of the refrigeration system wrapped around the outside, and a heat insulating wall 3
is surrounded by. 4 is a water supply pipe that supplies water to a predetermined level inside the cooling cylinder 1; 5 is an ice cutting auger rotatably arranged inside the cooling cylinder 1; and an upper bearing that fixes the upper end shaft 5A of the auger 5 to the cooling cylinder 1.
6 , the lower end shaft is supported by a lower bearing (not shown). The upper bearing 6 has a plurality of ribs 6B that protrude in the axial direction from the circumferential surface 6A and abut against the inner wall of the cooling cylinder 1, so that the adjacent ribs 6B, the circumferential surface 6A, and the inner wall of the cooling cylinder 1 are connected to each other. An ice compression passage 7 is formed which is defined by. Also upper bearing
A recess 8 is formed in the lower surface of the ice shaving member 6 , and two sliding washers 9 whose friction surfaces are harder than the upper bearing 6 and the ice cutting auger 5 are inserted into the recess 8 from the upper end shaft 5A. By the way, the material of the ice cutting auger 5 and the upper bearing 6 is stainless steel (SUS304).
It ranks 180th on the Bitkers hardness scale. Watshire 9 is made of stainless steel with hard chrome plating, and has a Bitkers hardness of about 800. 10 is a drive motor for the auger 5; 11 is an ice storage; 1
2 is an ice discharge member, 13 is a discharge port opened in the side wall of the ice storage 11, and 14 is an opening/closing door of the discharge port 13.

By arranging the sliding washer 9 between the auger 5 and the upper bearing 6 as described above, abnormal wear of the auger 5 and the upper bearing 6 is alleviated.

Next, the reason why the washers 9 are arranged in the recesses 8 will be described. For example, if the washer 9 is simply disposed between the auger 5 and the upper bearing 6 without forming the recess 8, it is obvious that the dimension between the lower end surface of the rib 6B and the upper end surface of the auger 5 will increase. If this size is large, the ice scraped off by the auger 5 during this time becomes clogged, resulting in increased resistance, increasing the drive torque of the auger 5, and causing ice compression noise. However, by arranging the washer 9 in the recess 8 as in the present invention, the dimension A between the lower end surface of the rib 6B and the upper end surface of the auger 5 can be made smaller as shown in FIG. 2, and the resistance is reduced. Driving torque is reduced and compression noise is no longer generated.

In the embodiment described above, the recess 8 is formed on the lower surface of the upper bearing 6 , but as shown in another embodiment in FIG. 3, the recess 8 is formed on the upper end surface of the ice cutting auger 5, A washer 9 may be placed here, and as in the embodiment, abnormal wear can be alleviated and the dimension A can be made smaller.

As described above, in this invention, a sliding washer is placed between the lower surface of the upper bearing and the lower surface of the ice cutting auger, so that the friction surface is harder than that of the upper bearing and the auger. When adopted, it has the advantage of alleviating abnormal wear. In addition, by arranging the sliding washer in the recess formed on the lower surface of the upper bearing or the upper surface of the auger, the dimension between the lower surface of the rib and the upper surface of the auger can be reduced, which reduces the increase in driving torque caused by ice blockage and the compression noise. It also has the advantage of being able to prevent the occurrence.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway overall structural diagram of the auger ice maker of the present invention, Figure 2 is a sectional view of the main parts of the present invention,
FIG. 3 is a sectional view of a main part of another embodiment of the present invention. 5...Auger for ice cutting, 6 ...Upper bearing, 8...
...Concavity, 9...Sliding washer.

Claims (1)

[Scope of utility model registration request] An ice-shaving auger that scrapes ice that grows on the inner wall of the cooling cylinder is rotatably arranged within the cooling cylinder, supports the upper end shaft of the auger, and protrudes from the circumferential surface in the axial direction to abut against the inner wall of the cylinder. In an auger-type ice maker, an upper bearing with a plurality of ribs is fixedly arranged, and shaved ice is compressed in an ice compression passage defined by adjacent ribs, a peripheral surface, and an inner wall of a cooling cylinder to produce dense ice. , a recess is formed in the lower surface of the upper bearing or the upper surface of the ice-shaving auger, and a sliding member having a friction surface harder than that of the upper bearing and the ice-shaving auger is disposed in the recess. Type ice maker.