KR200317690Y1 - Speed reduction apparatus to control the height of oil - Google Patents

Abstract

The reducer capable of adjusting the height of the oil level according to the present invention includes a retractable reservoir installed at one side of the lower cover of the reducer so as to communicate with the inside of the reducer, and a drive cylinder installed to stretch the retractable reservoir at the bottom cover of the reducer. An oil reservoir; An oil inspection unit including an enlarged window installed to view the inside of the reducer on the top cover of the reducer and an illumination lamp installed to illuminate the inside of the reducer on the top cover of the reducer; And a control unit for controlling the operation of the drive cylinder and the illumination lamp.

According to the present invention, when the inside of the reducer is to be inspected, the oil level of the oil is artificially lowered to reveal a part of the shaft or gear submerged in the oil, thereby enabling a more accurate inspection.

Description

Speed reducer to control the height of oil

The present invention relates to a speed reducer capable of adjusting the oil level, and more particularly, a flexible oil reservoir is installed on one side of the lower part of the reducer in which oil is built, and if necessary, the oil inside the reducer is moved to the oil reservoir to reduce the speed reducer. The present invention relates to a reducer capable of adjusting the height of an oil level to lower the oil level of oil stored therein so as to more accurately check the condition of a shaft or gear installed inside the reducer.

In general, the reduction gear refers to a device installed between a drive motor and a brake in a driving device for moving a facility such as a crane to convert the rotational speed of the driving motor into a rotational speed suitable for controlling the movement of the facility.

The structure of the reducer will be described with reference to FIG. 5, which shows a conventional reducer. The reducer is combined with the upper cover 1 and the lower cover 2 to form a sealed housing, one side of which is installed with a drive shaft connected to the drive motor, and the other side is inserted with a driven shaft 4 connected to the facility. do. Although not shown, a plurality of helical gears of different sizes and numbers of tooth surfaces are engaged between the drive shaft 3 and the driven shaft 4 to connect both shafts 3 and 4, and the driven shaft 4 Towards the side, the size and number of the tooth surfaces of the helical gear are arranged to be larger, so that the rotational speed of the driven shaft 4 becomes smaller than the rotational speed of the drive shaft 3.

Inside the reducer, oil is built in to reduce the friction between the drive shaft 3, the driven shaft 4 and the helical gear to facilitate rotation. Normally oil is filled so that a portion of the shaft and gear is submerged in oil and is discharged to the outside through the oil discharge pipe 5 when the oil is excessively supplied or the oil needs to be replaced. In addition, the storage state of the oil or the state of the shaft or gear is checked through the inspection window 6 installed on the upper cover 1 of the reducer.

If you use the reducer for a long time or frequently start or stop braking without sequential speed shifting when driving or stopping equipment such as a crane, excessive force is transmitted to the tooth surface of the gear, and the tooth surface of the gear is excessively worn and the shaft Fine cracks or fractures occur. Such wear or cracking may cause the gearbox to malfunction and, in severe cases, may cause a safety accident. Therefore, the condition of the shaft or gear installed inside the reducer should be regularly checked. However, in the above-mentioned conventional reducer, not only a part of the shaft or gear is immersed in oil, but also the interior of the reducer is dark and there are many blind spots. It is difficult to check the condition of the shaft or gears alone.

Therefore, it is necessary to check the cracks, broken state or wear of gear tooth by checking the inside of the reducer using a flashlight or work lamp, which requires a lot of time due to working conditions. Not only does it reduce the productivity of work, but it also causes problems such as a reduction of the shaft of the reducer during operation of the equipment due to lack of accurate inspection.

The present invention has been proposed to solve this problem by installing an elastic reservoir on one side of the lower cover of the reducer to communicate with the reducer and extending the reservoir by a drive cylinder to move the oil in the reducer into the reservoir. The purpose is to reduce the oil level so that the shaft or gear can be completely exposed, so that the oil level of the oil level can be adjusted to check the condition of the shaft or gear more accurately.

In addition, the present invention has another object to enable the inspection of the inside of the reducer without dismantling the speed reducer by installing an enlarged window and an illumination lamp on the top cover of the reducer.

1 is an overall perspective view of a reducer according to the present invention.

Figure 2 is a cross-sectional view of the illuminator installed in the reducer according to the present invention.

Figure 3 is a front view showing the operating state of the reducer according to the present invention.

Figure 4 is a partial perspective view showing the operating state of the reducer according to the present invention.

5 is a perspective view of a conventional reducer.

※ Explanation of symbols about main part of drawing ※

1: top cover 2: bottom cover

3: drive shaft 4: driven shaft

5: oil discharge pipe 6: inspection window

10: oil reservoir 11: protruding casing

12: telescopic reservoir 13: cover

13a, 13b: gasket 14: drive cylinder

15: cylinder rod 16: receiving block

17: support bar 18: roller

30: oil check unit 31: magnifying window

32: illuminator 33: on-off switch

34: receiving groove 35: lighting lamp

36: reflector 37: reflector

38: transparent cover 50: control part

51: cylinder operation switch 52: lamp power supply switch

The present invention for achieving the above object, the oil storage including a telescopic storage bin installed to communicate with the inside of the reducer on one side of the lower cover of the reducer and a drive cylinder installed to stretch the telescopic reservoir on the bottom cover of the reducer. part; An oil inspection unit including an enlarged window installed to view the inside of the reducer on the top cover of the reducer and an illumination lamp installed to illuminate the inside of the reducer on the top cover of the reducer; And a control unit for controlling the operation of the drive cylinder and the illumination lamp.

In addition, the oil storage portion of the reducer to be in contact with the support bar installed in the stretchable reservoir so as to be parallel to the rod traveling direction of the drive cylinder, the receiving block is installed on the lower cover of the reducer so that the support bar is accommodated It further comprises a roller installed on the bottom cover.

In addition, the illumination lamp is mounted to the front end of the illuminator inserted into the top cover of the reducer, the front end of the illuminator is configured to be fitted with a reflector with a reflector attached to the inner surface.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment according to the present invention.

1 is an overall perspective view of a reducer capable of adjusting the oil level of the oil according to the present invention, and FIG. 2 is a sectional view of the illuminator according to the present invention.

As shown, the drive shaft 3, the driven shaft 4 and the helical gear is installed in the interior of the housing in which the reducer according to the present invention is coupled to the upper cover 1 and the lower cover 2, and the lower cover The discharge pipe 5 for discharging oil on one side of (2) is configured to be the same as the conventional speed reducer shown in FIG. However, the reducer according to the present invention is installed on one side of the lower cover 2, the oil storage unit 10 for storing oil as needed, the oil check unit 30 is provided on the upper cover (1) The control unit 50 for controlling the oil storage unit 10 and the oil check unit is installed separately from the conventional reducer configuration.

First, the configuration of the oil reservoir 10 will be described. Protruding casing 11 is formed at one side of the reducer lower cover 2 at regular intervals, and a telescopic storage container 12 is installed in a seating groove provided between the protruding casings 11 and the telescopic storage container ( 12 is in communication with the interior of the reducer. The stretchable storage container 12 is stretched in length by a force applied from the outside, and typically there is a bellows. In addition, a cover 13 is installed in front of the stretchable storage container 12 to seal the stretchable storage container 12 and maintain the mold at the same time as it is extended. As shown in FIG. 4, gaskets 13a and 13b are fitted into portions of the flexible storage container 12 coupled to one side of the reducer and portions coupled to the cover 13 so that oil does not leak out. The telescopic reservoir 12 is sealed.

On the other hand, one side of the lower cover (2) of the reducer is provided with a drive cylinder 14 for stretching the stretchable storage container 12. When the cylinder rod 15 of the drive cylinder 14 is connected to the cover 13 installed in front of the flexible storage container 12 and the drive cylinder 14 is operated, the direction of the cylinder rod 15 is parallel to the traveling direction. The stretchable storage container 12 is stretched. In addition, the support bar 17 is connected to the cover 13 so as to be parallel to the cylinder rod 15, the support bar 17 is provided on one side of the lower cover 2 of the reduction gear Received on block 16.

More specifically, as shown in FIG. 4, a receiving hole 16a penetrating the inside is formed at the center of the receiving block 16, and the supporting bar 17 is formed in the receiving hole 16a. It is housed in a fitted form. Since the receiving hole 16a penetrates the receiving block 16, the receiving block 16 prevents the movement of the supporting bar 17 even if the length of the supporting bar 17 is longer than the length of the receiving block 16. It doesn't. Although the movable cylinder 12 can be moved only by the drive cylinder 14, the support is parallel to the cylinder rod 15 of the drive cylinder 14 in view of the fact that the reservoir 12 is elastic. By providing the bar 17 further, it is possible to smoothly move the flexible storage container 12. On the other hand, a roller 18 is installed on one side of the reducer in a form in which the lower portion of the support bar 17 is seated, and the roller 18 rotates together as the support bar 17 moves horizontally. By continuing to support the (17) allows the horizontal movement of the support bar 17 can be made smoothly.

On the other hand, the configuration of the oil check unit 30 is as follows. On the top cover 1 of the reducer, an enlarged window 31 made of a block lens is provided instead of a conventional flat inspection window. This enlarged window 31 allows to check the state of the shaft and gear installed inside the reducer more accurately. On the top cover 1 of the reducer, in addition to the enlarged window 31, an illuminator 32 that can illuminate the inside of the reducer is also provided.

Referring to FIG. 2, the illuminator 32 will be described in more detail. An on / off switch 33 for opening and closing the power supply circuit of the illuminating lamp is installed on the upper part of the main body constituting the body of the illuminator 32. An end toward the inside of the mounting groove 34 is provided with a screw thread formed therein, the fire groove 34 is mounted with an illumination lamp 35. In addition, a reflector tube 36 having a reflector 37 attached to an inner surface thereof is fitted at an end of the illuminator 32 on which the illuminating lamp 35 is mounted. The reflector 37 includes an illuminating lamp 35 of the reducer. It allows you to brighten the interior. The transparent cover 38 is covered at the end of the reflector 36 to prevent ingress of foreign matter.

Finally, the configuration of the controller 50 is composed of a cylinder operation switch 51 for controlling the operation of the drive cylinder 14 and a lamp power supply switch 52 for supplying power to the illumination lamp 35.

The operation of the reducer capable of adjusting the oil level of the oil according to the present invention configured as described above will be described with reference to FIGS. 3 and 4.

When the operator wants to check the inside of the reducer, first, the cylinder operating switch 51 of the control unit 50 is operated to advance the cylinder rod 15 of the drive cylinder 14. As a result, the cover 13 connected to the cylinder rod 15 is also advanced, and the stretchable storage container 12 coupled with the cover 13 is extended. At this time, the support bar 17 installed in parallel with the cylinder rod 15 also maintains the frame of the stretchable storage container 12 is extended while moving with the cover (13). Since the flexible storage container 12 is in communication with the inside of the reducer, the oil filled in the reducer moves to a new space created by the expansion of the flexible storage container 12, and eventually the amount of oil in the reducer is reduced and the oil is reduced. The height of the oil will be lowered. When the oil level rises, a portion of the shaft or gear submerged in the oil is revealed, which makes it easier for the operator to check the condition.

As such, when the shaft or gear installed inside the reducer is exposed out of the oil, the operator turns on the on / off switch 33 so that the illumination lamp 35 brightens the inside of the reducer, and then through the enlarged window 31. Check for cracks or gear wear on the gears. At this time, the reflector 37 installed in front of the illumination lamp 35 reflects the light of the illumination lamp 35 to brighten the interior of the reducer, and the enlarged window 31 further provides a shaft or gear installed inside the reducer. The large view allows the operator to easily check the condition of the shaft or gear with the naked eye.

As described above, according to the reducer capable of adjusting the oil level of the oil according to the present invention, when checking the inside of the reducer, the oil level of the oil is artificially lowered to reveal a part of the shaft or gear immersed in the oil for more accurate inspection. This makes it possible. It also illuminates the interior of the reducer with a light lamp, making it easier for the operator to check with the naked eye.

Claims (3)

A stretchable reservoir 12 installed on one side of the lower cover 2 of the reducer to communicate with the inside of the reducer, and a drive cylinder 14 installed to stretch the stretchable reservoir 12 on the bottom cover 2 of the reducer. Oil storage unit 10 comprising a; Oil including an enlarged window 31 installed to see the inside of the reducer on the top cover 1 of the reducer, and an illumination lamp 35 installed to illuminate the inside of the reducer on the top cover 1 of the reducer. Check unit 30; And, Reducer capable of adjusting the height of the oil level consisting of a control unit (50) for controlling the operation of the drive cylinder (14) and the illumination lamp (35). The method of claim 1, The oil reservoir 10 has a support bar 17 installed in the stretchable reservoir 12 so as to be parallel to a rod traveling direction of the drive cylinder 14, and a lower end of the reducer to accommodate the support bar 17. The height of the oil level, characterized in that it further comprises a receiving block 16 provided on the cover 2, and a roller 18 provided on the lower cover 2 of the reducer so as to contact the lower end of the support bar 17. Adjustable reducer. The method of claim 1, The lighting lamp 35 is mounted at the end of the lighting body 32 which is inserted into the upper cover 1 of the speed reducer toward the inside of the speed reducer, and at the end of the lighting body 32 a reflector 37 is provided on the inner surface. A reducer capable of adjusting the height of the oil level, characterized in that the attached reflector 36 is fitted.