JPH0554175U - Sliding device for running crawler - Google Patents

Abstract

(57) [Abstract] [Purpose] To ensure a smooth slide movement of the slide frame and, in turn, to ensure the lateral slide drive of the running crawlers. [Structure] Left and right running frames to which the running crawler 2 is attached
In the traveling crawler in which the machine frame 19 for supporting the machine body is provided on the frame 22 and the traveling frame 22 is configured to be movable left and right with respect to the machine frame 19, Slide portions 11a and 12a for accommodating the slide frame 3a are provided below the lateral frames 11 and 12 which are provided horizontally, and one slide is provided below the slide frame 3a. A support frame 17 for supporting the frame 2 is attached, and the outer frame end of the slide frame 3a is configured to support the machine frame 19 above the crawler 2 and also the slide frame. 3a has a horizontal frame 11
Three or more rollers 15, 15 and 15 which come into contact with the lower surface and roll with the movement of the slide frame 3a are provided, and at least two rollers 15 and 15 of these rollers are provided.
Is arranged so as to be located within the width of the traveling crawler 2.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 INDUSTRIAL APPLICABILITY The present invention relates to a slide device for a traveling crawler, and can be used as a traveling device for agricultural work vehicles such as combine harvesters.

[0002]

[Prior Art]

 Conventionally, in this type of traveling crawler, when this is a combine harvester, for example, in the case of splitting work or ridge work, the uncut stalk is sown by the traveling crawler that is normally on the side of the cut land. In order to avoid stepping on a culm or riding on a ridge, a traveling crawler on the cut land side can be moved in parallel to the other traveling crawler, for example, JP-A-61-2913. It is known from the publication.

[0003]

[Problems to be solved by the device]

 When the traveling crawlers are moved parallel to each other in a field with soft ground, it is extremely difficult to maintain an accurate parallel state because a strong and non-uniform reaction force from the ground surface is applied to the traveling crawlers. Met. Therefore, for the slide frame that receives the weight of the machine body, the weight of the machine body applied via the machine frame does not uniformly apply to the entire slide frame, and the slide frame between the slide frame and the machine frame is slid. There was a problem that the movement was not smooth.

The present invention is intended to solve such a problem, and to ensure smooth slide movement of the slide frame, and further to ensure left and right slide driving of the traveling crawler. Therefore, the following technical measures were taken.

[0005]

[Means for Solving the Problems]

 That is, according to the technical means of the present invention, the body frames 19 for supporting the body are provided on the left and right traveling frames 22 to which the traveling crawlers 2 are attached, and the traveling frame 22 is attached to the body frame. In the traveling crawler configured to be movable left and right with respect to 19, the slide frame 3a is accommodated movably left and right under the lateral frames 11 and 12 that are laterally installed in the body frame 19. The slide frames 11a and 12a are provided, and the support frame 17 for supporting one of the crawlers 2 is attached to the lower side of the slide frame 3a. The outer extending end of the slide frame 3a It is constructed so as to support the body frame 19 above the crawler 2, and the slide frame 3a is brought into contact with the lower surface of the lateral frame 11 and rolls along with the movement of the slide frame 3a. More than 15 rollers 15,15,1 The provided, each of these Russia - among La, at least two B - is the also characterized in that are arranged to be located within the width of La 2 - La 15, 15 travel black.

[0006]

[Action]

 Of the three or more rollers 15 provided on the slide frame 3a, at least two rollers are disposed within the lateral width of the traveling crawler 2 on the movable side. The loads applied to the rollers are substantially equal, the lateral frame 11 is well seated, and the traveling rollers are smoothly slid.

[0007]

[Function and effect of the device]

 Therefore, according to the structure of the present invention, the slide frame can be smoothly slid. Especially, according to the rollers attached to the slide frame, the load is evenly applied to each roller, so that the seat of the body frame is improved and the rattling of the slide frame is reduced. The straightness of the slide frame is improved, so that the slide can be smoothly performed.

[0008]

【Example】

 In the illustrated example, the traveling device 1 includes a pair of lateral so-called lips with respect to a fixed frame member 10 in the front-rear direction (a) in which the support device 8 of the crawler 2 on the fixed side is attached by a support frame 9. Horizontal frames 11 and 12 each having a groove-shaped steel-like cross section are provided with their cross-section openings facing downward, and a connecting frame 13 that connects these projecting end sides from the upper side in the front-rear direction (a) is provided. Is formed.

A plurality of rotatable rollers 15 are arranged on the front and rear lateral members 3a, 3a of the rectangular slide frame 3 and are fitted into the front and rear lateral frames 11, 12, respectively. The slide frames 3a are configured to slide laterally by using the lip portions 16 on both sides of the opening portion as rails of the roller 15, and the slide frames 3a pass through the lower openings of the front and rear horizontal frames 11 and 12. The traveling crawler 2 on the movable side is connected and fixed to a supporting frame 17 protruding downward. An aircraft frame 19 (mounting table) for mounting the mounted object is formed and provided on the upper part thereof.

Further, hydraulic cylinders 18, 18 are stretched between the slide frame 3 and the fixed frame member 10 of the traveling device 1. By extending the outer end 3e of the slide frame 3a to a position above the crawler 2, the weight of the machine body is added to the crawler 2 from directly above the traveling crawler 2. .. Then, on the slide frame 3 projecting above the crawler 2, at least two rollers 15a and 15b of the plurality of rollers 15 are provided with the crawler width (d). The rollers 15a and 15b located on the crawlers are set at a distance L which is an equal distance from the crawler width center C.

The crawler belt 14 of the crawler 2 is an endless rubber crawler belt, and a lug 20 is provided on the outer peripheral surface of the crawler 2, and when it is wound around the left and right crawlers 2 and 2, the center of the crawler width (d) is set. A meshing body 21 that meshes with a drive sprocket 6 that drives and rotates the crawler 2 is continuously provided on the inner surface closer to the inner side in the rotation direction. A plurality of crawler support devices 8 are provided outward of each of the crawlers 2 at appropriate intervals in the front-rear direction (a) of the traveling frame 22 along the front-rear direction (a) formed of rectangular tubes (four in the illustrated example). A drum-shaped rolling wheel 23 is rotatably pivotally mounted, and a rear wheel 25 is pivotally mounted on an arm 24 which is fitted into the traveling frame 22 at the rear end thereof and which can be adjusted in and out. The crawler belt 14 is wound around and wound around. The support device 8 of the fixed side crawler 2 of this structure is connected and fixed to the traveling frame 22 by the pair of front and rear support frames 9 of the traveling device 1, and the sliding side crawler 2 supports the supporting frame of the slide frame 3a. The traveling frame 22 is connected and fixed to the frame 17.

The traveling transmission case 4 has a transmission mechanism having a speed change gear, a clutch and the like for transmitting the power from the prime mover to the transmission shaft 5, and is mounted on the front edge portion 26 of the machine frame 19. To the fixed side crawler support device 8 side, a drive sprocket 28 is provided at the transmission shaft end fitted with the wheel pipe 27 to drive the crawler 2, and the wheel pipe 27 is supported by the traveling frame 22 by the support legs 29. To be done. On the other side, a transmission shaft 5 that projects to the sliding crawler 2 is provided.

The transmission shaft 5 is provided with a space between a central shaft 31 bearing the final transmission gear 30 in the transmission case 4 and the outer peripheral surface of the central shaft 31, and an end portion of the shaft 31. And an outer cylinder shaft 35 in which a spline 34 is provided on the outer peripheral surface of a cylinder having a boss portion 33 screwed with a screw 32, and an inner end of the transmission case 4 is provided in the space. A fixedly supported cylindrical foil pipe 36 is inserted and interposed. The wheel pipe 36 rotatably supports the central shaft 31 with a bearing 37, and a bearing 38 rotatably supports an outer cylinder shaft 35. The central shaft 31 that is supported and extends long is reinforced and supported.

A wide boss portion 39 of the drive sprocket 6 having an inner hole provided with a spline to be fitted from the outside is provided on the spline 34 of the outer cylinder shaft 35 of the transmission shaft 5 in a wide width. The leg portion of the bearing body 7 having the housing portion 41 which is received from the outside by the bearing 40 is fixed to the front end portion of the traveling frame 22 of the crawler supporting device 8 so as to support the transmission shaft 5 over the rolling wheel 23. With respect to the bearing body 7 and the drive sprocket 6, the housing 41 is positioned outside the drive sprocket 6 in the sliding direction, and stop rings 42 and 43 are provided on the left and right sides of the bearing 40 to remove the bearing. The drive sprocket 6 is moved in the direction of the shaft 5 while rotating the drive sprocket 6 together with the transmission shaft 5 integrally with the movement of the bearing body 7.

The transmission case 4, which is appropriately transmitted from the prime mover mounted on the machine frame 19 on the traveling device 1, passes through the central shaft 31, the outer cylinder shaft 35, and the fixed side crawler 2. When the left and right drive sprockets 28 and 6 drive and rotate the crawler belts 14 of the left and right crawlers via the drive shaft to move the traveling device 1 forward, when hydraulic cylinders 18 and 18 are extended by the hydraulic circuit, The movable side crawler 2 moves laterally. At this time, the sliding movement of the traveling frame 22 having the rolling wheels 23 causes the bearing body 7 to rotate the drive sprocket 6, and along with this, the bearing body 7 to move laterally outward along the transmission shaft 5 and the traveling crawler 2 to move. While the crawler belt 14 is driven and rotated, the crawler belt 14 is moved laterally to widen the space between the left and right crawlers 2 and 2, and the slide is stopped at the position where the hydraulic cylinders 18 and 18 have stopped extending, so that the machine frame You can change the left-right weight balance of the load on the 19. When the rollers 15 are provided on the slide frame 3a as shown in the figure and the rollers are rolled in the front and rear lateral frames 11 and 12 of the traveling device 1 so that the slide contact surfaces slide with each other. With a lighter load, the hydraulic cylinders 18 can slide with ease.

[Brief description of drawings]

FIG. 1 is a plan view of a traveling device.

FIG. 2 is a front view of a traveling device.

FIG. 3 is an enlarged side sectional view of a part of the traveling device.

FIG. 4 is a front sectional view of a part thereof.

FIG. 5 is a partial plan view thereof.

[Explanation of symbols]

 1 Traveling Device 2 Traveling Crawler 3 Slide Frame 4 Traveling Transmission Case 5 Transmission Shaft 6 Drive Sprocket 7 Bearing Body 8 Crawler Supporting Device 9 Supporting Frame 10 Fixing Frame Material 11 Horizontal Frame 12 Horizontal Frame 13 Coupling Frame 14 Crawler Track 15 Roller 16 Lip Part 17 Supporting Frame 18 Hydraulic Cylinder-19 Machine Body Frame 20 Lug 21 Engagement Body 22 Traveling Frame

Claims (1)

[Scope of utility model registration request] 1. A body frame 19 for supporting a body is provided on the left and right traveling frames 22 to which the traveling crawlers 2 are attached, and the traveling frame 22 is moved left and right with respect to the body frame 19. In the traveling crawler configured as possible, slide portions 11a and 12a for accommodating the slide frame 3a in a laterally movable manner are provided below the lateral frames 11 and 12 provided laterally in the body frame 19. The slide frame 3a is provided.
On the lower side, a supporting frame 1 for supporting one of the crawlers 2
7 is attached to the slide frame 3a so that the body frame 19 is supported above the crawler 2 by the outwardly extending end of the slide frame 3a, and the slide frame 3a has a lateral frame.
Provided are three or more rollers 15, 15 and 15 which come into contact with the lower surface of the frame 11 and roll with the movement of the slide frame 3a, and at least two rollers 1 out of these rollers 1 are provided.
A slide device for a traveling crawler, characterized in that 5 and 15 are arranged so as to be located within the width of the traveling crawler 2.