KR960006738B1 - A moving apparatus of wheel for skid-loader - Google Patents

Abstract

The device includes a belt transmission for selectively transmitting a power generated by an engine to a chain transmission gear; a chain transmission gear to transmit the power from the belt transmission gear to a wheel; and a clutch which presses the belt transmission gear selectively for selective driving.

Description

Wheel Drive of Agricultural Skid Steer Loader

1 is a perspective view of an agricultural skid steer loader to which the present invention is applied.

2 is a perspective view showing an embodiment of a wheel drive device for an agricultural skid steer loader according to the present invention.

(A) and (b) of FIG. 3 are a front view and a top view which show the structure of this invention.

4 is a cross-sectional view taken along the line A-A of FIG. 3 (b).

(A) and (b) of FIG. 5 are operating states of the present invention.

* Explanation of symbols for main parts of the drawings

100: wheel drive device 101: agricultural skid steer loader

102: engine 103: case

104, 105: wheel 10: chain drive

30: belt transmission device 31: drive pulley

32, 36: optical pole pulley 33, 37: pulley

34, 34c: 2-stage pulley 35,38: Children pulley

34a: Reduced pulley 34b: Enlarged pulley

39: first belt 40: second belt

41, 42: belt 43, 44, 45: press Laura

44a, 45a: arc-shaped link 46: first link

47: second link 48: lever

50: clutch device 51-55: shaft

51-68: 1st-8th sprockets 66a, 67a: sprockets

71 to 74: 1st to 4th chain

The present invention relates to a wheel driving device of an agricultural skid loader (SKID-LOADER), more specifically, by driving the drive device for driving the wheel by belt transmission, of course, it is possible to accurately control the driving of the wheel The aim is to drastically reduce manufacturing costs so that it can outperform product competitiveness.

In general, skid steer loaders have been developed to effectively perform hard work in small spaces, so they can perform tasks such as composting and sawdust treatment of fermented pigs. In addition, road stop work, snow removal work raising or towing work, fruit trees, gardening, landscaping work, etc. can also be performed effectively in a short time.

The skid steer loader, which is widely used for such work, is installed at a position where four wheels form a square so as to enable 360 ° rotation in a narrow space, and both wheels are operated separately by respective operating levers.

As described above, the conventional wheel driving device for driving the wheels so that the wheels of the skid loader are operated separately, each wheel is operated as desired by the hydraulic pressure, so that the skid loader as well as forward and backward rotation and rotation and rotation It is possible.

In the conventional wheel drive system in which the wheels are operated and controlled by hydraulic pressure, the skid loader is driven by hydraulic pressure so that the hydraulic device is checked when the skid loader has an abnormality and inspects or repairs the skid loader. In addition, the special equipment and professional skills required for repair are required, and in the case of replacing the accessories, the price of the various components of the hydraulic system is expensive, and the purchase of the accessories is difficult. Repairs were impossible at all, so they had to ask a repair shop that specializes in farm machinery.

As a result, repair costs are greatly increased, and although there are not many specialty shops for repairing equipment in rural areas, they require a lot of time for inspection and repair. Therefore, expensive equipment cannot be used for a long time. There is a need to work hard and rely on human resources.

The present invention was developed in view of the above problems, the purpose of the present invention is easy and easy to check and repair the wheel drive device for driving the wheel of the skid steer loader, the production cost is cheap and widespread to the general farmers simple and easy In order to be able to concentrate on farming, it is to provide an agricultural skid loader that can contribute to agricultural development.

Hereinafter, an embodiment of a wheel driving apparatus for an agricultural skid loader according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in (a) and (b) of FIGS. 2 and 3, the wheel drive apparatus 100 for driving the agricultural skid steer loader 101 according to the present invention is configured to chain the power generated from the engine 102. A belt transmission device 30 selectively transmitting to the transmission device 10, a chain transmission device 30 for transmitting the power transmitted from the belt transmission device to the wheel, and selectively pressure to the belt transmission device 30 In addition, the belt transmission device 30 is composed of a clutch device 50 for selectively driving.

The chain transmission device 10 is installed inside the case 103 of which the top is opened and closed, and the belt transmission device 30 for transmitting power to the chain electric field 10 outside the case 103, and the belt. A clutch device 50 for selectively applying pressure to the transmission device 30 is installed, and an engine 102 that is a power source of the wheel drive device 100 according to the present invention is installed at the rear of the case 103. .

The belt transmission device 30 is provided with a wide pulley 32 connected to the drive pulley 31 and the belt 41 of the engine 102, the wide pulley 32 is connected to the drive pulley 31 The belt 41 and the belt 41 for transmitting power to the chain transmission device 30 are formed to have a wide width, and another pulley 33 is installed on the other side of the wide pulley 32 so that both wheels are provided. It is designed to deliver power to

In addition, the belt transmission window 30 is installed on both sides of the outer side and the chain transmission device 10 is installed on both sides of the case 103, the first and second belts 39, so as to selectively reverse the rotation of the wheel, Pulleys 40 are wound around the installation, and since both sides are symmetrical, only one direction will be described.

That is, the wide pulley 36, in which the first and second belts 39 and 40 are wound, is freely installed at the center of the side surface of the case 103, and the first and second sides of the wide pulley 36 are rotated freely. Two-stage pulley 34 and idle pulley 5 are installed on the left side so that the two belts 39 and 40 are wound in a triangular form, and the pulley 37 and idle pulley 38 are installed on the right side.

The first belt 39 is wound in a triangular form to the reduction pulley 34a, idle pulley 35, wide pulley 36 of the two-stage pulley 34, the second belt 40 is pulley 37 And idle pulleys 38 and wide pulleys 36 are wound in a triangular form.

On the other hand, the diameters of the two-stage pulley 34c receiving power from the wide pulley 32 and the two-stage pulley 34 receiving power from the pulley 33 provided on the same side as the wide pulley 32 are different from each other. The speed can be adjusted by the skid steer loader.

And the clutch device 50 for transmitting power by pressing the belt of the belt transmission device 30 is pulley 30 (including wide pulley 32) as shown in (a), (b) of FIG. And press the belt 42 on the upper side of the belt 42 wound on the enlarged pulley 34b of the two-stage pulley 34 to transmit the power transmitted to the pulley 33 to the two-stage pulley 34. The roller 43 is installed.

In addition, as shown in (a) and (b) of FIGS. 2 and 3, the side of the case 103 may press the first and second belts 39 and 40 selectively, and the pressing rollers 44 and ( Arc-shaped links 44a and 45a provided with 45 are hingedly installed, and the arc-shaped links 44a and 45a are rotated according to the rotation of the lever 48, and the pressing rollers 44 and 45 are rotated. The first and second links 46 and 47 are hinged between the lever 48 and the arc-shaped link 44a so that the first and second belts 39 and 40 can selectively press the first and second belts 39 and 40. Is installed. In addition, the chain transmission device 100 installed in the case 103 has a shaft on which the two-stage pulley 34 of the belt transmission device 30 is installed, as shown in FIGS. 3A and 4B. First and fourth sprockets 61 and 64 are installed on the shaft 52 of the pulley 37 in which the second belt 40 is wound 51 and the second upper and lower portions of the fourth sprocket 64. In addition, the third sprockets 62 and 63 are installed, and the first chain 71 is wound around the first to fourth sprockets 61 to 64 to transmit power, and the first sprocket 61 and The first chain 71 is wound around the fourth sprocket 64 so as to always rotate in the opposite direction. In addition, a fifth sprocket 65 is installed on a shaft 53 of the wide pulley 36 installed at both centers of the case 103, and a fifth sprocket 65 and a second chain 72 are connected to one shaft thereof. The sixth sprocket 66 is installed, and another sprocket 66a is installed on the installed shaft 54 of the sixth sprocket 66 and the seventh sprocket 67 and the third chain 73 installed on one axis thereof. Is connected.

Another sprocket 67a is installed on the shaft 55 on which the seventh sprocket 67 is installed, and a shaft 56 on which the wheels 104 are installed is provided at one of the shaft shafts. An eighth sprocket 68 is installed to connect the sprocket 66a and the eighth sprocket 68 to the fourth chain 74.

Referring to the operating state of the wheel drive device of the agricultural skid loader according to the invention configured as described above are as follows.

As shown in FIGS. 2 to 5, the power generated by the engine 102 is connected to the wide pulley 32 and the wide pulley 32 by connecting the drive pulley 31 and the wide pulley 32 of the engine as a belt 41. The pulley 33 installed on the same axis as the pulley 32 is in a rotating state.

At the initial stage of this state, the belt 42 wound between the wide pulley 32 and the two-stage pulley 34c, the pulley 33 and the two-stage pulley 34, respectively, is loosely wound, and thus, the case 103 The power is not transmitted to the chain transmission apparatus 10, and only the wide pulley 32 and the pulley 33 are rotating. In this state, when the belt 42 is pushed by the pressing roller 43 located above each belt 42, the belt 42 pressed by the lever (not shown) acts as the belt 42 is pulled from both sides. Power is transmitted in contact with the.

Since the belt transmission device 30 of the wheel drive device according to the present invention is installed symmetrically on both sides of the case 103, the belt transmission device 30 located on the front side of the drawing [2nd and 3rd (b)]. Explain.

When the belt 42 is pressed as the push roller 43 by operating the lever as described above, the belt 42 that is loosely wound between the pulley 33 and the enlarged pulley 34b of the two-stage pulley 34 is pulled on both sides. The power generated by the engine 102 in contact with the 33 and 34b is transmitted to the shaft 51 of the two-stage pulley 34. When the power of the engine is transmitted to the shaft 51 in this way, the first sprocket 61 installed on the shaft 51 is rotated, and the first chain 71 is the second and the first sprocket 61 in the first sprocket 61. It is wound together with the 3rd, 4th sprockets 62, 63, and 64, and each sprocket 61-64 rotates.

However, since the first chain 71 is wound around the first sprocket 61 and the fourth sprocket 64 so as to rotate in opposite directions, the second sprocket 61 and the second sprocket 64 are disposed on the same shaft 51 as the first sprocket 6l. The pulley 34 and the fourth sprocket 64 and the pulley 37 provided on the same shaft 52 are in a state of being rotated in opposite directions.

In this state, since the first and second belts 39 and 40 are loosely wound around respective pulleys having two triangular shapes, only the second stage pulley 34 is rotating. In this state, each of the belts 39 and 40 comes into contact with the pulleys as the first and second belts 39 and 40 are selectively pressed with the pressing rollers (middle) and (45). It rotates while changing in the direction of rotation.

First, as shown in FIG. 5A, when the lever 48 is operated as "a", the lever 48 is rotated, and the arc-shaped link 44a hinged to the end of the first link 48 is connected to the "b". While rotating together, press the first belt 39, which has been loosened at the end of the arc-shaped link 44a, and presses the first belt 39 to reduce the pulley 34a, the idle pulley 35, and the wide pulley 34 of the second pulley 34. 36 is in contact with the first belt 39. As the pulleys arranged in this triangular shape are contacted by the first belt 39, the rotational force of the second gear 34 is transmitted to the wide pulley 36, and is installed on the same shaft 53 as the wide pulley 36. The fifth sprocket 65 rotates in the same manner, and the fifth sprocket 65 and the sixth sprocket 66 connected to the second chain 72 rotate in the same direction.

As the sixth sprocket 66 rotates as described above, the sprocket 66a and the seventh sprocket 67 installed on the same shaft 54 as the sixth sprocket 66 are connected to the third chain 73, and The sprocket 67a and the eighth sprocket 68 installed on the same shaft 55 and the seventh sprocket 67 are connected to the fourth chain 74 so that the shaft 56 on which the eighth sprocket 68 is installed is the engine ( It is possible to drive the agricultural skid steer loader 101 by rotating the wheels 1002 installed in the shaft 56 in the same direction and rotating in the same direction. At this time, as shown in (b) of FIG. 3, the shaft 56 is connected to the shaft 75 so that the front wheel 104 rotates in the same direction as the rear wheel 105.

The operation state described above has described the state in which the wheels 104 and 105 are rotated in the forward direction, and the state in which the wheels are rotated in the reverse direction is illustrated in FIGS. 5B, 4, and 3 A), (b) will be described with reference.

A description will be given with reference to (b) of FIG. 5, FIG. 4, and (a) and (b) of FIG.

As shown in FIG. 5B, when the lever 48 is operated as "c", the arc link 45a hingedly installed at the end of the lever 48 rotates as "d" and the arc link 45a. The pressing roller 45 installed at the end presses the second belt 40 wound around each pulley in a triangular shape so that the wide pulley 36, the pulley 37 and the idle pulley 38 are the second belt 40. ) And other pulleys 36 and 38 also rotate in the direction of rotation of the pulley 37 which is rotated in the reverse direction while contacting the. At this time, the arc link (44a) of the other side is rotated in the opposite direction to the arc link (45a) holding the second belt 40, the pressing roller (44) is released from the first belt (39) to the second belt (40) Only rotate in the reverse direction.

As described above, as the second belt 40 rotates in the reverse direction, the fifth sprocket 65 installed on the same width 53 as the wide pulley 36 rotates in the reverse direction, and the fifth sprocket 65 A sixth sprocket 66 connected to the second chain 72, a sprocket 66a installed on the same side as the sixth sprocket 66, a seventh sprocket 67 connected to the third chain 73, and the second sprocket 66; 7 Sprockets 67a provided on the same shaft 5 as the sprockets 67 and the eighth sprocket 68 connected by the fourth chain 74 are rotated in the same direction as the fourth sprocket 64 that rotates in the reverse direction. do.

Therefore, the front wheel 104 installed on the shaft 56 of the eighth sprocket 68 and the rear wheel 105 connected by the chain 75 so as to rotate in the same direction as the front wheel are rotated in the same reverse direction while the skid loader It will drive (101).

As described above, the present invention allows the rotational direction of the front and rear wheels to be converted according to the direction of operating the lever 48 installed in the case 103, so that the front and rear of the skid loader according to the direction of operating both side levers 48. It is possible to easily turn to the left or right as desired.

On the other hand, the outer diameters of the left and right two-stage pulleys 34 and 34c which are installed symmetrically on both sides of the case 103 are different from each other so that the traveling speed of the skid loader can be varied. When the power is connected to the large two-stage pulley 34, the skid loader runs at low speed, and when the power is connected to the small two-stage gear 34c, the skid loader runs at high speed.

As described above, the wheel driving device of the agricultural skid steer loader according to the present invention has a belt transmission method in which the driving device for driving the wheel is conventionally hydraulic, so that the work is easy when the skid loader is checked or repaired. There is an advantage that can be easily checked by the general users and replacement of parts.

In addition, the belt transmission device is wound around each pulley in a triangular form, so the contact angle between each pulley and the belt is small. Another advantage is that the contact steering is reduced and the horizontality of the belt can be extended. And because of the belt transmission method, the occurrence rate of the failure is extremely small, and the manufacturing cost is greatly reduced than the conventional hydraulic type can be used casually by ordinary farmers can have an excellent effect such as efficient farming work.

Claims (5)

In constructing the wheel drive device of the agricultural skid steer loader, the belt transmission device 30 for selectively transmitting the power generated from the engine 102 to the chain transmission device 10 and the power received from the belt transmission device 30 The chain transmission device 10 for transmitting the wheel to the wheel, and the clutch transmission device 50 for selectively driving the belt transmission device 30 by selectively applying pressure to the belt transmission device (30) Wheel drive of skid steer. According to claim 1, The belt transmission device 30 is installed symmetrically on both sides of the case 103 in which the chain transmission device 10 is installed inside, the belt transmission device 30 is in the center of both sides of the case 103; A wide pulley 36 is provided, and the second gear 34 and the idle gear 35 on one side so that the first, second belts 39 and 40 are wound in a triangular form on both sides of the wide pulley 36. And a pulley (37) and an idle pulley (38) are installed on the other side of the first belt (39) on the reduced pulley (34a), idle pulley (35) and wide pulley (36) of the second gear (34). ) Is wound, the wide pulley 36, the pulley 37 and the second belt 40 is wound around the idle pulley 38, the wide pulley receives power from the drive pulley 31 of the engine 102 (37) and the pulleys 33 provided on the same side as the wide pulley 32 and the enlarged pulleys of the two-stage two-stage pulleys 34 and 34c each have windings of the respective valves 42 and the wide pulleys 32. And transmission of power through the pulley (33) Wheel drive of the agricultural skid steer road, characterized in that. According to claim 1 or claim 2, The chain drive device 10 is installed inside the case 103, the first sprocket 61 is installed on the same side as the second gear 34, and the second, In the fourth sprocket 64 installed on the same side as the third sprockets 62 and 63 and the pulley 37, the first and fourth sprockets 61 and 64 are rotated in opposite directions. The chain 71 is wound around the second chain between the wide pulley 36 and the fifth sprocket 65 provided on the same axis and the sixth sprocket 66 having the sprocket 66a on the same axis. A 72 is wound around the sprocket 66a and a third chain 73 is wound between the seventh sprocket 67 having the sprocket 67a on the same axis, and the third shaft 73 is wound around the sprocket 66a. The wheel drive device of the agricultural skid steer road, characterized in that the fourth chain 74 is wound between the eight sprockets (68) and the sprockets (67a) to drive the wheels. According to claim 1 or claim 2, wherein the clutch device 50 is a two-side belt wound between the wide pulley 32 and the second gear 34c and between the pulley 33 and the second gear 34, respectively. (42) the pressing roller 43 and the arc-shaped link 44a, 45a is rotated by the operation of the lever 48, the pressing roller pressing the first, second belt (39), (40) ( 44), the wheel drive device of the agricultural skid steer characterized in that consisting of (45). The wheel drive device of the agricultural skid steer road according to claim 2, wherein the outer diameters of the two-stage two pulleys (34) and (34c) of the belt transmission device (30) are so small that the shift of the traveling speed is possible. .