JPS63116650A - Driving mechanism - Google Patents

Abstract

PURPOSE:To prevent foreign matters from entering an engaging part of a driving gear and a driven gear, by setting either of the driving gear or the driven gear with a flange. CONSTITUTION:A flange 23C is set at the upper side of either gear (driven gear 23 in the figure) of the driven gear 23 to be attached to the top part of a rotator 13 and a driving gear 22 which is fixed to a driving shaft 21a of a rotary driving means 21 and engaged with the driven gear 23.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a drive mechanism for a refrigeration device, such as a refrigeration device capable of producing ice cream, ice, etc., and a drive mechanism for other devices.

[Prior art]

One type of conventional refrigeration equipment includes a cooling tank that is cooled from the outer periphery with a cooling medium, and a bottomed cylindrical container that is removably housed in the cooling tank from its upper opening, or There is a refrigeration apparatus that includes a rotatably arranged stirring blade and rotates the stirring blade to stir and freeze the contents of the container or cooling tank. In such a refrigeration system, a drive gear that is rotatably driven by a drive means such as an electric motor is used as a drive mechanism for rotating the stirring blade, and a driven gear that is rotatably assembled to the stirring blade and meshes with the drive gear. Ru.

[Problem that the invention seeks to solve]

In this way, when both of the above-mentioned gears are adopted as the drive mechanism for the stirring blade, the driven gear is installed horizontally on the upper end of the stirring blade above the upper end opening of the container or cooling tank, and the driven gear is installed horizontally at the upper end of the stirring blade at the same position. It is meshed with a drive gear horizontally spaced by Mi. Therefore, since the meshing portions of these two gears are located above the container or the cooling tank, a means for preventing the meshing portions from being caught in the meshing portions is required.

Accordingly, an object of the present invention is to provide a drive mechanism for a refrigeration device that can prevent jamming by extremely simple means, and furthermore, to provide the various drive mechanisms described above.

[Means for solving problems]

In order to achieve such an object, the present invention provides a drive mechanism at the upper end of a rotating member that is rotatably disposed within a bottomed cylindrical container in which an object to be processed is housed, and which processes the object to be processed, such as stirring, cutting, and pulverizing. A driven gear is installed to be horizontally integrally rotatable on the part, and a drive gear is rotationally driven by a driving means and meshes with the driven gear, and either one of these gears A. It is characterized by having an outward facing flange portion that covers the body.

[Action/effect of the invention]

In the drive mechanism having such a configuration, if both of the gears are arranged in a circular recess and an adjacent circular recess above the upper end opening of the container, the outer periphery of each gear is placed on the upright wall of each circular recess. The engaging portions of both gears that are surrounded by the circular recesses and are not surrounded by the standing walls of each circular recess are covered from above by the outward flange portions of one of the gears. Therefore, with this configuration, biting at the second engagement portion ζ can be effectively prevented by simple means.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a refrigeration system equipped with a drive mechanism according to the present invention. The refrigeration equipment is covered by a patent application filed by the applicant in 1983.
1-261653, in which the cooling tank 11. The ice cream manufacturing container 12 and the impeller 13 drive mechanism 20 are disassembled, and the compressor 3
1. Condenser 32. It is provided with a cooling vibrator 33 which is an evaporator, and further provided with a holding frame for making ice and a sopera for making ice (not shown). Each of these components is housed within a casing 34.

Compressor 31. The condenser 32 and the cooling vibrator 33 constitute a known refrigeration circuit as shown in FIG.
A dryer 36a and a capillary duplex 36b are interposed in the connecting line 35a between the cooling bar and the tube 33, and between the connecting line 35b between the compressor 31 and the condenser 32 and the connecting line 35a. A bypass conduit 35c is provided, and an electromagnetic on-off valve 36c is interposed in the conduit 35c. In such a refrigeration circuit, the cooling medium passes through the pipe line 35b → 35a-+35d when the on-off valve 36c is closed.
ft, and when the on-off valve 36c is opened, the pipe line 35b-+
Cycle 35c → 35d.

The cooling tank 11 has a cylindrical shape with a bottom, and a cooling vibe 33 is wound around the outer periphery of the tank 11 many times.
It is buried in a and opens upward. Such cooling tank 1
1, there is a circular through hole 11a in the center of the bottom.
is formed, and the through hole 11a communicates with a drainage hose 37c via a drainage channel 37b. Drain hose 37
c is removably fitted into a holder provided on one side of the outer surface of the casing 34.

The ice cream manufacturing container 12 has a cylindrical shape with a bottom similar to the cooling tank 11, and is large enough to form a predetermined circumferential gap between the two containers 11 and 12 when housed in the cooling tank 1. It is formed. The container 12 has a cylindrical projection 12a projecting upward from the center of the bottom thereof. Thereby, a predetermined circumferential gap is maintained between the container 12 and the inner periphery of the four tanks 11 within the cooling tank 11. The impeller 13 has two blades 13b on the outer periphery of a rotating shaft 13a.
, 13c are integrally formed in two stages, upper and lower, and a circular recess 13d that fits into the protrusion 12a of the container 12 is formed at the lower end of the rotating shaft 13a. Further, a prism-shaped protrusion 13e is formed at the two ends of the rotating shaft 13a, and the protrusion 13e is fitted into a recess of a driven gear of a drive mechanism 20, which will be described later.
3 is in the container 12, and the recess 1 is inserted into the protrusion 12a of the container 12.
3 d is fitted and the protrusion 13 is placed in the recess of the driven gear.
e are positioned and rotatably supported in the fitted state, and in this state, as shown in FIG. It's coming.

The drive mechanism 20 includes a drive motor 21. Small diameter drive gear 2
2 and a large-diameter driven gear 23, the motor 21 is supported by an upper plate 34a within a casing 346, as shown in FIG. This upper plate 34
As shown in FIG. 3, a pair of circular recesses 34al and 34a2 are formed above the drive motor 21 and the cooling tank 11, and the first circular recess 34a1 is located above the drive gear 2.
The second circular recess 34a2 is formed to have a slightly larger diameter than the driven gear 23, and communicate with each other on the inside. A small diameter opening 34b is formed in the center of the first circular recess 34a1, and the drive shaft 2 of the motor 21
1a protrudes from the small span opening 34b. This drive shaft 2
1a is fitted with an adapter 21b, which can rotate integrally with the drive shaft 21a through the small diameter opening 34I.
) stands out. The adapter 21b has a rectangular tube shape. The drive gear 22 has an angular recess 22a opening downward in its central boss, and the adapter 2 of the motor 21
1b, and is fitted in the first circular recess 34a1 of the upper plate 34a.

The large-diameter gear A 23 has an angular recess 23a that opens downward in its central boss portion, has a toothed portion 23b on its outer periphery, and has an outward flange portion on its upper surface that protrudes outward from the toothed portion 23b. It is equipped with 23c. The recess 23a of the driven gear 23 fits into the protrusion 13e of the impeller 13,
When the impeller 13 is supported in the container 12, the impeller 13 is supported by the second circular recess 34a2 of the upper plate 34a, and is located above the large diameter opening 34c provided concentrically in the second circular recess 34a2. It is detachable and can be rotated as a unit. Further, in this state, the tooth portion 23b of the driven gear 23 is connected to the tooth portion 23b on the outer periphery of the drive gear 22.
b, and teeth 22b, 2 of each gear 22.23.
The outer periphery of the gear 3b is surrounded by the standing walls of the respective circular recesses 34al and 34a2, and the meshing portion of both gears 22, 23 is covered from above by the outward flange 23c of the driven gear 23.

Note that the reference numeral 38 in FIG. 1 is a lid that covers the upper end of the casing 34;
It is removably fitted to the upper end periphery 1 and its recess 38a.
The central protrusion 23d of the driven gear 23 is fitted into the central protrusion 23d to rotatably support the driven gear 23.

To produce ice cream using the freezing device, first, the drain hose 37c is fitted to the holder, and then a small amount of water is injected into the cooling tank 11 to fill the circumferential gap between the cooling tank 11 and the container 12. Then, a container 12 filled with ice cream dough is housed in a cooling tank 11. Next, the drive gear 22 of the drive mechanism 20 is fitted and assembled into the adapter 21b of the motor 21, and the protrusion 13e of the impeller 13 is fitted into the recess 23a of the driven gear 23 to assemble the impeller 13 to the driven gear 23. The impeller 13 in this state is set upright in the container 12.

The impeller 13 is positioned and rotatably supported within the container 12 by fitting the recess 13d of the rotating shaft 13a into the protrusion 12a on the bottom of the container 12. Finally, by fitting the lid 38 to the upper peripheral edge of the casing 34, the refrigeration system is set to the state shown in FIG. 1.

In such a state, if the switch of the drive circuit (not shown) of the refrigeration system is closed and the electricity is turned on for a predetermined time, the compressor 3
1 starts and the cooling medium flows from pipe 35b to 35 shown in FIG.
The flow returns in the order of a → 35d to cool the cooling tank 11, and - the motor 21 in the blade drive mechanism 20 starts and the impeller 1
Turn 3 to stir the ice cream batter. As cooling progresses in the cooling tank 11, the cooling tank 11
The water intervening in the circumferential gap between the container 12 and the container 12 freezes to combine and integrate the two 11.12 with minimum water pressure, while maintaining heat conduction between the container 12 and the container 12. Prevent rotation. Furthermore, inside the container 12, the ice cream dough is frozen on the inner periphery 12b and gradually grows, and this frozen material is sequentially scraped off by the impeller 13.

When all the ice cream dough in the container 12 is frozen and turned into ice cream after a predetermined period of time has elapsed, the power supply to the freezing device is stopped and the motor 21. Compressor 3
1st class stops driving. Therefore, by removing the lid 38 and taking out the impeller 13 and the driven gear 23 from the container 12, the ice cream can be easily taken out.

Note that a drainage hose 37 is used to drain the water in the cooling tank 11.
Remove c from the holder and point it downward.

As a result, the water in the cooling tank 11 flows through the through holes 11a.

It is discharged from the drainage bowl 37c via the drainage channel 37b.

By the way, in the refrigeration system, the drive gear 22 and the driven gear 23 of the drive mechanism 20 are connected to the second plate 34a.
are located in each circular recess 34al, 34a2, and each gear 2
2.23 outer peripheral tooth portion 22b.

23b is each recess 34al, 34. It is surrounded by the standing wall of a2, and the meshing part of both gears 22 and 23 is connected to the driven gear 2.
It is covered from above by the outer peripheral flange portion 23c of No.3. Therefore, according to this configuration, the meshing part is effectively prevented from being jammed.

In the above embodiments, a drive mechanism for a refrigeration device that can selectively produce ice cream and ice was shown, but the present invention can also be applied to a drive mechanism for a refrigeration device dedicated to producing ice cream and ice, and other devices. It can be implemented.

[Brief explanation of the drawing]

FIG. 1 is a partially vertical side view of a refrigeration device according to an embodiment of the present invention, FIG. 2 is a refrigeration circuit diagram of the device, and FIG. 3 is a plan view of the device with the lid removed. . Explanation of symbols 11...◆Cooling tank, 12...◆Container, 13...◆Impeller, 20...Drive mechanism, 21...Motor, 22.
23... Gear, 22b, 23b... Teeth, 23c.
...Outward flange part 1.31...Compressor, 32...
Condenser, 33... Cooling vibe, 34a... Upper plate, 3
4al, 34. a2...Circular recess.

Claims (1)

[Claims] A driven gear that is rotatably arranged in a bottomed cylindrical container in which a workpiece is accommodated and is horizontally and integrally rotatably assembled to the upper end of a rotating member that processes the workpiece by stirring, cutting, crushing, etc. and a drive gear that is rotationally driven by a drive means and meshes with the driven gear, and one of these gears has an outward flange portion that covers these meshing portions from above. mechanism.