KR20150007673A - Oil gauge of axle hub reduction device - Google Patents

Abstract

The present invention relates to an oil gauge of an axle hub reduction system. According to the present invention, an oil gauge of an axle hub reduction system has an oil indication unit installed on an oil tank and capable of indicating the level and the color of oil filling the oil tank so that a user can identify the level and the color of the oil, wherein the oil tank to supply the oil to a planetary gear set in the carrier housing of the axle hub reduction system is installed in the carrier housing. According to the present invention, a driver can change the oil according to a timing to change the oil by easily identifying the timing to change the oil, thereby preventing the performance or the durability of the axle hub reduction system from being deteriorated.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oil gauge for an axle hub reduction device,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an axle hub reduction device, and more particularly, to an oil gauge of an axle hub reduction device capable of confirming the amount and color of oil for lubricating gears provided in the hub reduction device.

Generally, in an automobile, an axle is called an axle and is fixed by a bearing or a bearing barrel to help the wheel or gear rotate about its axis.

The axle is equipped with 2 or more small and medium sized vehicles, and 3-4 depending on the application. The front axle and the rear axle are generally divided into two types. The front axle serves to distribute the weight of the vehicle, adjust the direction, and transmit driving force. The rear axle is divided into a drive axle and a dead axle. The drive axle shares the weight of the vehicle and transmits the driving force to the wheels. The dead axle only serves to support the weight of the vehicle.

On the other hand, in order to increase the durability of the drive axle, construction equipment vehicles (construction machinery, heavy equipment such as forklifts, excavators, etc.), heavy-duty trucks and high-output trucks employ a decelerating device for the axle hub, (Hub Reduction System).

In particular, the maximum torque conversion of a construction equipment vehicle is performed by a hub reduction device mounted on a wheel hub. The torque reduction transmitted from the drive axle shaft is reduced through a planetary gear set included in the hub reduction device, .

The drive axle in which the hub reduction device is constructed is disclosed in Korean Patent Publication No. 10-0910790 (Patent Document 1) and Korean Patent Publication No. 10-0972214 (Patent Document 2).

The drive axle hub reduction device disclosed in Patent Document 1 includes a casing in which a drive shaft rotated by engine power is horizontally disposed and supported inside the casing, a ring gear coupled to the casing end, a housing coupled to the ring gear, A hub wheel that partially engages the housing end and is fixedly coupled to the carrier and that is mounted on the wheel, a sun gear coupled to an end of the drive shaft, a sun gear, and a ring gear to rotate and revolve And a planetary gear rotatably supported and coupled to the carrier.

When power is supplied from the drive shaft through the drive shaft, the rotational force of the drive shaft is transmitted to the planetary gear through the sun gear formed at the end of the drive shaft. At this time, the planetary gear is in contact with the ring gear formed in the housing and in contact with the sun gear at the same time, and is rotated along the fixed ring gear while receiving the rotational force of the sun gear.

As a result, the wheels of the vehicle assembled to the wheel shafts rotate, thereby causing the vehicle to run.

Thus, the torque for rotating the wheel can be increased while the rotational power flowing into the drive shaft is reduced through the gear ratio between the sun gear, the planetary gear, the ring gear, and the carrier.

However, in the conventional drive axle, high heat is generated in the gears, that is, the sun gear, the planetary gear, and the ring gear due to the high load in the hub reduction device. Therefore, A tank is provided.

The oil contained in the oil tank will not function after a long time due to the decrease in the amount of oil or deterioration of the oil. Therefore, the oil needs to be periodically changed. The driver can not see the inside of the oil tank, so that the oil is erroneously determined when to replace the oil, and the oil is replaced too early or too late, There is a problem that the durability is lowered.

Korean Patent Registration No. 10-0910790 Korean Patent Registration No. 10-0972214

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in an effort to solve the above problems, and it is an object of the present invention to provide an oil purifier for a vehicle, And to provide an oil gauge of an axle hub reduction device capable of improving the performance of the hub and the durability of parts.

According to an aspect of the present invention, an oil tank for supplying oil to a planetary gear set in a carrier housing of an axle hub reduction is provided in a carrier housing. In the oil tank, the height of the oil filled in the oil tank, And an oil display mechanism is provided for the user to check the height and color of the oil.

The oil indicator is protruded from one side of the oil tank and is bent toward the upper side. The oil indicator is communicated to the inside of the oil tank and filled with oil at the same height as the oil in the oil tank. It is preferable that the oil display member is made of a transparent material.

Further, the oil indicator is provided so as to be close to the oil display member, and is provided with a plurality of regions to be coated with different colors, and is configured so that one of the plurality of regions is overlapped with the oil display member And an oil change timing determining mechanism for comparing the color of one overlapping area with the oil color of the oil display member to determine the replacement timing of the oil.

In addition, the oil change timing determination mechanism has a plurality of regions partitioned at regular intervals and coated with different colors, and is installed to flow in the oil tank or the oil display member. When the user changes the oil change timing, And a color comparison member in which a visual hole is formed in each of a plurality of areas so as to be visible.

The color comparison member may include a plate member whose center is rotatably fixed to the oil tank or the oil display member by a pin member, a plurality of areas are formed at intervals of a predetermined angle, .

The color comparison member is preferably formed of a rectangular sticker or a plate member which is vertically provided in the oil display member or the oil tank and in which a plurality of regions indicating hues corresponding to the state of the oil are vertically partitioned.

It is preferable that a plurality of areas of the color comparison member are provided with a statement describing a replacement timing of the oil corresponding to the colors applied to the plurality of areas.

The oil display member may include a connection pipe having one end connected to the inside of the oil tank so as to communicate with the inside of the oil tank and the other end bent toward the upper side and one end detachably coupled to the other end of the connection pipe, And a transparent member capable of viewing the height and color of the oil.

Further, it is preferable that the oil display member further includes a valve provided in the connection pipe and for blocking or releasing the oil from moving to the transparent member in the connection pipe.

According to the present invention, since the operator can easily understand the oil replacement time by the oil indicator provided in the oil tank, and the oil can be replaced according to the oil replacement timing, the performance of the axle hub reduction is lowered or the durability is lowered .

Further, since the color comparison member for determining the oil replacement time is provided in comparison with the oil color of the oil display member, it is possible to easily determine the oil change time even if the driver has no experience or little experience of oil change.

Further, since the oil display member is configured to be detachable in the oil tank, the oil display member can be separated and cleaned during oil replacement, and the oil display member can be used for a long time.

1 is a side view showing an oil gauge of an axle hub reduction device according to a first embodiment of the present invention;
2 is a front view showing an oil gauge of an axle hub reduction device according to a second embodiment of the present invention;
3 is a view showing an oil gauge of an axle hub reduction device according to a third embodiment of the present invention.
4 is a view showing an oil gauge of an axle hub reduction device according to a fourth embodiment of the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a side view showing an oil gauge of an axle hub reduction device according to a first embodiment of the present invention, and FIG. 2 is a front view showing an oil gauge of an axle hub reduction device according to a second embodiment of the present invention. FIG. 3 is a view showing an oil gauge of an axle hub reduction device according to a third embodiment of the present invention, and FIG. 4 is a view showing an oil gauge of an axle hub reduction device according to a fourth embodiment of the present invention.

First, in the embodiment of the present invention, the oil gauge will be described as an example applied to the hub reduction device 50 of the axle. The axle will be described only with respect to the drive axle of the rear axle.

The axle hub reduction device 50 is constituted by a planetary gear set provided between a drive shaft rotated by engine power and a hub wheel 60 on which the wheels are mounted.

The planetary gear set includes a ring gear coupled to the casing end, a carrier housing coupled to the ring gear, a ring gear coupled to the ring gear, A sun gear coupled to an end of the drive shaft, and a planetary gear rotatably supported and coupled to the carrier so as to engage with the sun gear and the ring gear to rotate and revolve.

When the power of the engine flows through the drive shaft in the axle hub reduction device 50, the rotational force generated in the drive shaft is transmitted to the planetary gears through the sun gear provided at the end of the drive shaft.

Accordingly, the planetary gear rotates along the fixed ring gear while receiving the rotational force of the sun gear in contact with the ring gear provided in the carrier housing and in contact with the sun gear.

Then, the carrier connected to the center of the planetary gear via the bearing is rotated, and the wheel shaft splined to the carrier rotates. At this time, as the hub wheel 60 assembled to the wheel shaft rotates, the vehicle travels.

In the axle hub reduction device 50 described above, the one side of the carrier housing or the axle casing is provided in the carrier housing to cool the heat generated by the operation of the planetary gear set provided for reducing the speed and increasing the torque, An oil tank 70 for supplying oil is provided.

The oil gauge 100 of the axle hub reduction device 50 according to the embodiment of the present invention displays the height and oil color of the oil filled in the oil tank 70 in which the oil is contained, And an oil indicator mechanism 110 provided in the oil tank 70 for confirmation.

1, the oil gauge 100 according to the first embodiment of the present invention is configured such that the oil indicator mechanism 110 provided in the oil tank 70 protrudes from the lower portion of one side of the oil tank 70 And is vertically formed upward. The oil tank 70 is communicated with the inside of the oil tank 70 to fill the oil tank 70 with oil. The oil tank 70 is made of a transparent material so that the oil can be seen from the outside And an oil display member 111.

2 is a view showing an oil gauge 100 of an axle hub reduction device according to a second embodiment of the present invention.

The oil gauge 100 of the axle hub reduction device 50 according to the second embodiment of the present invention is configured such that the oil indicator mechanism 110 provided in the oil tank 70 is connected to the oil indicator member 111 A plurality of regions 112a are provided in proximity to each other so as to be coated with different colors so that the color of the oil contained in the oil display member 111 and the plurality of regions 112a, And an oil change timing discriminating mechanism for comparing the colors applied to the oil.

The oil change timing determining mechanism has a plurality of regions 112a partitioned at regular intervals and coated with different colors, and is installed to flow to the oil tank 70 or the oil display member 111, And a color comparison member 112 formed in each of the regions with a viewing hole 112b for viewing the oil of the oil display member 111 at the time of discrimination.

The color comparison member 112 is formed of a circular plate member as shown in Fig. 2, and is rotatably fixed to the oil tank or the oil display member 111 by a pin member at the center. Therefore, by comparing the oil colors of the oil display member 111 and the colors applied to the plurality of areas 112a through the visual holes 112b formed in the plurality of areas by rotating the circular plate member, So that it is possible to know the replacement timing of the battery.

Here, the different colors applied to the plurality of regions 112a of the color comparison member 112 are deteriorated when the oil used in the axle hub reduction device 50 is first injected into the oil tank 70, The color of the oil which is changed until the oil level is changed is divided into a plurality of steps and displayed.

The plurality of regions 112a of the color comparison member 112 are coated with different colors and at the same time the state of the oil corresponding to the applied color, that is, the state in which the oil deteriorates due to the operation of the hub reduction device 50 (A brief description of the replacing time in the present invention). Here, in order to explain the oil state according to the oil color, the phrases 112c displayed in the plurality of areas 112a are, for example, 'there is still much time left for replacement', ' '' I need to replace it soon. '' I need to replace it now. And so on.

3 is a view showing an oil gauge of an axle hub reduction device according to a third embodiment of the present invention.

As shown in the figure, the oil gauge 100 of the axle hub reduction device 50 according to the second embodiment of the present invention is configured such that the color comparison member 112 of the oil change timing determining mechanism is disposed in the oil display member 111, And a rectangular plate member that is vertically provided in the oil tank 70 adjacent to the member 111 and has a plurality of regions 112a that are colored in a vertical direction.

As described in the second embodiment of the present invention, the color comparison member 112 preferably includes a plurality of areas 112a with a phrase for informing the user of the oil change timing according to the state of the oil.

4 is a view showing an oil gauge of an axle hub reduction device according to a fourth embodiment of the present invention.

As shown in the figure, the oil gauge according to the fourth embodiment of the present invention includes a connection pipe 111a through which the oil display member 111 is connected at one end to one side of the oil tank 70, And a transparent member 111b, which is detachably coupled to the upper side of the display unit 110, and is formed vertically upward and formed of a transparent material.

Here, the connection pipe 111a and the transparent member 111b are configured to be mutually coupled, and a sealing member is interposed between the connection pipe 111a and the transparent member 111b so as to be interposed between the connection pipe 111a and the transparent member 111b And is configured to prevent oil from leaking.

That is, in order to prevent the oil contained in the oil display member 111 from being visible from the outside due to contamination of the inner surface of the oil display member 111 due to long use, the oil gauge 100 according to the fourth embodiment of the present invention The transparent member 111b can be coupled to the connection pipe 111a after the transparent member 111b is separated and cleaned. Here, it is preferable that the transparent member 111b is cleaned after oil is removed from the oil tank 70 to replace the oil.

The oil display member 111 further includes a valve 111c provided on the coupling pipe 111a for blocking or unblocking the other end of the coupling pipe 111a.

That is, when it is not time to replace the oil in the oil tank 70, the connection pipe 111a is closed by the valve 111c provided in the connection pipe 111a so that the transparent member 111b can be separated and cleaned It is.

Therefore, if it is determined that the transparent member 111b of the oil display member 111 is contaminated, the transparent member 111b can be separated and cleaned irrespective of the oil replacement time.

Hereinafter, the operation of the oil gauge of the axle hub reduction device according to the embodiment of the present invention will be briefly described.

First, when the driver experiences a lot of oil change, only the oil height and color of the oil display member 111 provided in the oil tank 70 are checked to determine whether the oil should be replaced.

When the driver has little or no experience of oil change, it is necessary to determine the replacement time of the oil after operating the color comparison member of the oil change timing determining mechanism provided in the oil tank 70. [

That is, the oil change timing discriminating mechanism color comparing member 112 is rotated so that one area of the plurality of areas 112a of the color comparing member 112 is overlapped with the oil display member 111, The color of the oil and the color of the plurality of regions 112a provided in the color comparing member 112 are compared. When the oil color of the oil display member 111 and the color of the region 112a overlapping the oil display member 111 are matched with each other, the oil recorded in the region 112a of the color comparison member 112, Read the replacement timing description. Then, the driver judges whether or not to replace the oil according to the description written on the color comparison member 112. [

As described above, since the oil indicator mechanism 110 provided in the oil tank 70 can easily grasp the oil replacement period and the oil can be replaced according to the oil replacement period, the operator of the axle hub reduction device 50 It is possible to prevent performance deterioration and durability deterioration.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is understandable. Accordingly, the true scope of the present invention should be determined by the following claims.

50: hub reduction device 60: hub wheel
70: Oil tank
100: Oil gauge
110: Oil indicator 111: Oil indicator member
111a: Connector tube 111b: Transparent member
111c: valve
112: color comparison member 112a: region
112b: Visual hole 112c: Stationery

Claims (9)

An oil tank for supplying oil to the planetary gear set in the carrier housing of the axle hub reduction is provided in the carrier housing,
Wherein the oil tank is provided with an oil indicator for indicating the height and color of the oil filled in the oil tank so that the user can check the height and color of the oil. The method according to claim 1,
The oil indicator,
The oil tank is formed to protrude from a lower portion of one side of the oil tank. The oil tank is folded upward. The oil tank is communicated with the inside of the oil tank and filled with oil at the same height as the oil in the oil tank, And an oil gauge of the axle hub reduction. 3. The method of claim 2,
The oil indicator,
A plurality of regions provided in proximity to the oil display member and coated with different colors,
The oil is configured to flow by the user so that one of the plurality of areas overlaps the oil display member,
Further comprising an oil change timing determining mechanism for determining an oil change timing by comparing the color of one overlapping area with the oil color of the oil display member. The method of claim 3,
The oil change timing determination mechanism
A plurality of regions partitioned at regular intervals and applied in different colors,
And a color comparison member which is installed to flow in the oil tank or the oil display member and in which a visual hole is formed in each of a plurality of areas so that the user can see the oil of the oil display member when the user changes the oil change time. Oil gauge of reduction. 5. The method of claim 4,
The color-
Characterized in that the center is constituted by a plate member rotatably fixed to the oil tank or the oil display member by a pin member and having a plurality of regions formed at intervals of a predetermined angle and each having a plurality of regions coated with different colors Oil gauge of axle hub reduction. 5. The method of claim 4,
The color-
Wherein the oil gauge is composed of a rectangular sticker or plate member vertically disposed in the oil display member or the oil tank and having a plurality of regions which are colored in a vertical direction. The method according to claim 4 or 5,
In the plurality of regions of the color comparison member,
Wherein a phrase describing a replacement timing of the oil corresponding to a color applied to the plurality of areas is written. 3. The method of claim 2,
The oil-
A connecting pipe having one end connected to the inside of the oil tank at one end of the oil tank and bent at the other end toward the top;
A transparent member that is detachably coupled to the other end of the connection pipe and is formed of a transparent material so that the height and color of the oil can be seen;
The oil gauge of the axle hub reduction. 9. The method of claim 8,
The oil-
Further comprising a valve provided in the connection pipe for blocking or unblocking the oil from being moved from the connection pipe to the transparent member.

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