KR101180684B1 - Shaft connector - Google Patents

Abstract

The present invention is directed to an axle coupling device that enables a vehicle to rotate in place or with a short radius, specifically a first bevel gear connected to the axle of the gear assembly side; A second bevel gear connected to or separated from the first bevel gear while moving from the driving wheel side axle to the left or right by a predetermined distance; And a third bevel gear axially installed between the first and second bevel gears to be engaged with each other to drive the driving wheels on both sides of the vehicle in opposite directions. It will provide an axle connecting device to rotate.

Description

Axle Connector {SHAFT CONNECTOR}

The present invention relates to an axle linkage that allows the vehicle to rotate in place or with a short radius.

In general, a vehicle includes a transmission, a drive shaft, a gear assembly, and an axle for transmitting engine power to a drive wheel. The engine generates power by burning fuel, the transmission adjusts the rotational speed and torque of the power, the drive shaft transmits the power to the gear assembly, and the gear assembly drives the power to both drive wheels through the axle. To pass.

Conventional driving wheels are connected to each side to drive in the same direction through one axle, so that a large radius of rotation is required to rotate the vehicle 180 degrees in proportion to the length of the vehicle body.

On the other hand, the vehicle can be easily operated in a narrow space as the rotation radius is reduced, in particular, in the case of agricultural special vehicles or industrial special vehicles, the smaller the radius of rotation can work efficiently in a narrow space.

However, in the case of such a special vehicle, both driving wheels not only drive in the same direction, but are usually configured to transmit power to the rear wheels, and since the steering device is connected to the front wheels, it is difficult to reduce the turning radius.

In addition, the conventional vehicle has a problem that takes a lot of overload when switching direction.

The present invention is to solve the conventional problem that it is difficult to reduce the radius of rotation of the vehicle in a structure in which both driving wheels of the vehicle rotate in the same direction.

The axle connecting device of the present invention is installed on the axle connecting the gear assembly and the drive wheels for transmitting power of the engine, the first bevel gear connected to the axle of the gear assembly side; A second bevel gear connected to the driving wheel-side axle while being installed to face the first bevel gear, the second bevel gear being configured to connect or disconnect power on the coaxial shaft with the first bevel gear through a left and right movement; And a third bevel gear, which is installed between the first and second bevel gears and is engaged with the first and second bevel gears, wherein the second bevel gears are engaged or separated from each other according to left and right movement. It is configured by.

The connecting means for connecting or separating the first and second bevel gears coaxially includes a engaging protrusion protruding from an end of the first bevel gear; And a coupling groove protruding from an end of the second bevel gear and engaged with the coupling protrusion while being inserted.

The second bevel gear is key-coupled to move left and right from the driving wheel side axle by a predetermined distance, is coupled to an outer surface of the central axis of the second bevel gear, and moving means for moving the second bevel gear left and right; It is configured to include.

The moving means includes an annular engaging groove formed along the outer surface of the central axis of the second bevel gear; And a lever formed to fit on both sides of the locking groove.

And a housing for covering the first bevel gear to the third bevel gear and for axially coupling the third bevel gear.

According to the axle connecting device of the present invention, by allowing the driving wheels on both sides of the vehicle to be driven in opposite directions, not only the effect that the vehicle can turn in place (spin turn) or realize a short radius of rotation, but also for agriculture In addition, there is an effect that can further improve the work efficiency of industrial special vehicles.

According to the axle connecting device of the present invention by forming a simple and stable structure for changing the driving direction of the drive wheels of both sides, there is an effect that can reduce the installation and production costs in applying to the vehicle.

1 is a plan view showing an axle connection device to which the present invention is applied.
Figure 2 is an exploded perspective view showing the main portion of the axle connecting device to which the present invention is applied.
Figure 3 is a plan sectional view showing the main portion of the axle connecting device to which the present invention is applied.
Figure 4 is an operation explanatory view showing the operation of the axle connecting device to which the present invention is applied.
5 is an explanatory view showing an example of use of the axle connection device to which the present invention is applied.
Figure 6 is an explanatory view showing another example of use of the axle connection device to which the present invention is applied.

Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 6, the axle coupling device according to the present invention is left and right from the first bevel gear 100 connected to the axle 20 of the gear assembly 10 and the axle 50 of the driving wheel 30. The second bevel gear 200 is connected to or separated from the first bevel gear while moving a predetermined distance, and the third bevel gear 300 is installed between the first bevel gear and the first bevel gear shaft to be engaged with each other. .

Such axle coupling devices are installed on both sides of the axle 20 connecting the gear assembly 10 and the driving wheels 30 on both sides, and the first, second, and third bevel gears 100, 200, and 300 are connected to each other. Through the structure is configured to rotate the power transmitted to the two driving wheels 30 forward or reverse, respectively.

The first bevel gear 100 is connected to the axle 20 of the gear assembly 10, and end portions facing the second bevel gear 200 are provided with connecting means for interconnecting and separating the second bevel gear 200.

The connecting means of the first bevel gear 100 may be formed as a coupling protrusion 110 of the gear shape as shown in Figures 2 to 4 as an embodiment.

The second bevel gear 200 is connected to the driving wheel 30 side axle 20 in a state in which it is installed to face the first bevel gear 100. In this case, the second bevel gear 200 is formed to connect or disconnect the power coaxially with the first bevel gear 100 while moving a predetermined distance from side to side.

The connecting means for connecting the second bevel gear 200 to the first bevel gear 100 may be formed as a coupling groove 210 having a gear shape as shown in FIGS. 2 to 4. .

In this case, a space may be formed in the coupling groove 210 so as not to be engaged while receiving the coupling protrusion 110 as illustrated in FIGS. 3 and 4. Meanwhile, the coupling protrusion 110 and the coupling groove 210 may be formed in opposite directions of the first and second bevel gears 100 and 200 as the connecting means.

In order to move the second bevel gear 200 to the left and right by a predetermined distance, the second bevel gear 200 is coupled to the key 230 to move a predetermined distance to the left and right from the axle 20 of the driving wheel 30 side. And moving means for moving the second bevel gear 200 from side to side while smoothly driving the second bevel gear 200 while being coupled to the outer surface of the central axis of the second bevel gear 200. It is configured to include. Here, a groove deeply recessed to insert the axle 20 is formed in the central axis of the second bevel gear 200.

For example, as shown in FIGS. 1 to 3, the moving unit is formed to be fitted to both sides of the annular engaging groove 220 and the engaging groove 220 formed along the outer surface of the central axis of the second bevel gear 200. The lever 400 can be configured. Although not shown in the figure, the lever 400 is to move left and right using a separate cylinder. The cylinder is selected and operated when the driver wants the vehicle to turn in place or have a short radius of rotation.

The third bevel gear 300 is axially installed between the first and second bevel gears 100 and 200, and engaged with the first and second bevel gears 100 and 200 to drive the second bevel gear ( 200 is formed to be engaged or separated from each other by moving from side to side as described above.

Therefore, the third bevel gear is axially coupled to the first and second bevel gears at right angles, and is coupled to the first and second bevel gears by being axially coupled regardless of the power of the engine.

The third bevel gear is preferably configured as a front and rear pair as shown in each drawing, but may be formed only at the front or rear side as necessary.

Meanwhile, the axle connecting device of the present invention covers the first bevel gear 100 to the third bevel gear 300 and includes a housing 500 for axially coupling the third bevel gear 300. do.

Therefore, according to the configuration of the present invention as shown in Figure 4 by moving the second bevel gear 200 is connected to the first bevel gear 100 through the connecting means and separated from the third bevel gear 300 In this case, the vehicle may move forward or backward by matching the rotation direction of the power transmitted through the gear assembly 10 and the rotation direction of the driving wheel 30.

At this time, when the vehicle is rotated using the steering device of the vehicle, the vehicle rotates in a large radius as shown in FIG.

Meanwhile, as shown in FIG. 4, when the second bevel gear 200 is moved to be separated from the first bevel gear 100 and engaged with the third bevel gear 300, the gear assembly 10 may be used. The driving wheel 30 rotates in a direction opposite to the rotation direction of the transmitted power.

At this time, as shown in FIGS. 1 and 3, when the reverse rotation is performed in only one direction according to the direction in which the vehicle is to be rotated, the vehicle is rotated in the opposite direction.

As such, when the driving wheel 30 rotates in the reverse direction, the vehicle can be rotated 360 degrees in place as shown in FIG. 5. In this case, for example, the vehicle is capable of reversing when the rear wheel is the driving wheel 30. At this time, even when the vehicle moves forward, it is possible to rotate with a short rotation radius as shown in FIG.

According to the configuration of the present invention as described above, by allowing both driving wheels 30 of the vehicle to be driven in opposite directions, the vehicle can be rotated in place (spin turn) or a short radius of rotation can be realized. It can further improve the working efficiency of agricultural or industrial special vehicles.

In addition, by forming a clutch for changing the driving direction of both drive wheels 30 in a simple and stable structure, it is possible to reduce the installation and production costs in applying to the vehicle.

10: gear assembly 20: axle
30: drive wheel
100: first bevel gear 110: coupling projection
200: second bevel gear 210: coupling groove
220: jamming groove 230: key
300: third bevel gear
400: lever
500: housing

Claims (5)

It is installed on the axle connecting the gear assembly and the driving wheels on both sides for transmitting power of the engine,
A first bevel gear connected to the axle of the gear assembly side;
A second bevel gear connected to the driving wheel-side axle while being installed to face the first bevel gear, the second bevel gear being configured to connect or disconnect power on the coaxial shaft with the first bevel gear through a left and right movement; And
A third bevel gear, which is installed between the first and second bevel gears and is engaged with the first and second bevel gears to be driven, wherein the second bevel gears are engaged or separated from each other according to left and right movement. Axle connection device, characterized in that configured.
The method according to claim 1, The connecting means for connecting or disconnecting the first and second bevel gears on the coaxial,
Engaging projections protruding from an end of the first bevel gear; And
And a coupling groove which protrudes from an end of the second bevel gear and is engaged with the coupling protrusion while being inserted.
The method of claim 1, wherein the second bevel gear is keyed to move a predetermined distance from side to side from the drive wheel side axle,
And a moving unit coupled to an outer surface of the central shaft of the second bevel gear and moving the second bevel gear from side to side.
The method of claim 3, wherein the moving means,
An annular engaging groove formed along an outer surface of the central axis of the second bevel gear; And
And a lever formed to be fitted at both sides of the locking groove.
The axle connecting device according to claim 1, comprising a housing for covering the first to third bevel gears, the housing for axially coupling the third bevel gears.

Images