JPH0726291U - Traveling crawler desorption device for mobile agricultural machinery - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Makes it easy to install and remove the traveling crawlers, shortens the time, and saves labor. [Structure] Drive sprocket and idler wheel (2),
In a mobile agricultural machine in which a traveling crawler (a) is suspended by several rolling wheels arranged between them, a base of a holding member (3) supporting an idler rolling wheel (2) is cut into a track frame. (4) Fitting on the vertical axis (5) of the idler, the idler roller (2)
Is rotatable about the vertical axis (5) as a fulcrum.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a traveling crawler attachment / detachment device for a mobile agricultural machine such as a combine harvester.

[0002]

[Prior art]

 Conventionally, it is not easy to attach a traveling crawler when the traveling crawlers are derailed in a combine or the like, or to remove or attach the traveling crawlers during maintenance of the traveling crawler portion. In particular, due to the large size, the weight of the traveling crawler also becomes large, and even if the tension bolt of the idler wheel is loosened, the inner surface of the traveling crawler will be caught in the protrusions of the ring and it will take time to remove it. And labor is required.

[0003]

[Problems to be solved by the device]

 This invention is difficult to attach and detach to the traveling crawler as described above, and is devised for the purpose of facilitating the difficult task, shortening the time required for this task, and saving labor. It came to.

[0004]

[Means for Solving the Problems]

 Therefore, in order to achieve the above-mentioned object, the present invention comprises a driving sprocket and an idler wheel at the front and rear parts, and a traveling crawler suspended around each of the wheels arranged between the drive sprocket and the idler wheel. In a mobile agricultural machine, the base of the horizontal holding member that supports the idler wheel is fitted to the vertical axis of the track frame, and the idler wheel is pivoted outward with the vertical axis as the fulcrum. It is characterized by being configured as possible.

[0005]

[Action]

 Therefore, when the traveling crawler is installed, the base of the holding member that supports the idler wheel is rotated outward with the vertical axis as the fulcrum to displace the idler wheel to the outer wheel. At the same time, with a margin between the peripheral edge of the idler wheel and the inner peripheral surface of the running crawler, the running crawler is hung around the idler wheel, and then the holding member is bent inside. It can be mounted by turning back and forth, and when removing the traveling crawler, if the holding member is rotated outward, the idler wheel will displace to the outer ring and There is a space between the inner surface of the traveling crawler and it can be easily removed.

[0006]

【Example】

 Hereinafter, the desorption device according to the present invention will be described with reference to an embodiment diagram. This mobile agricultural machine is a combi, and as shown in FIG. 3, (6) is a rubber traveling crawler (a). A threshing unit (a threshing unit that is mounted on a traveling device that is suspended from the machine). A) is installed, the control section and grain tank are installed on the right side, and the cutting section (B) equipped with the grass, raising tine, cutting blade, and transport mechanism is provided in front of the threshing section (A). It is a combine harvester of a conventionally well-known form in which grain culms are cut and threshed by advancing the airframe.

[0007] Next, the traveling device will be described. (7) is a vertical frame having left and right sides in the front-rear direction, and the front and rear portions of each of the vertical frames (7) have a crocodile link (8). A fulcrum shaft (10) and (11) for rotatably supporting the base portion of (9) and (9) is provided laterally, and the left and right vertical frames (7) are connected to a predetermined width to form a frame structure. To form a traveling frame, and the machine base (6) is mounted on the traveling frame.

Further, (4) is a rectangular hollow track frame provided outside the vertical frame (7) in parallel therewith, and the front side of each of the track frames (4). The first wheel (12), the equalizer wheel (13), the second wheel (14), and the third wheel (15) are arranged and supported in this order, and the idler wheel (2) is provided at the rear. The front and rear parts of the left and right truck frames (4) provided with the wheels (12), (13), (14) and (15) and the idler wheels (2) are connected by connecting pipes (16) and (17). The rear ends of the links (8) and (9) are rotatably fitted to the connection pipes (16) and (17), and the links (8) and (9) are connected to the fulcrum shafts (10) and (11). ) As the axis, the left and right track frames (4) are vertically displaced. It will be changed.

The final case projects from the transmission case into which the power from the engine is input to the left and right sides by a support body (18) extending forward from the vertical frame (7). The drive sprocket (1) is supported and the drive sprocket (1) is pivotally attached to the end of the drive shaft (19) of the interior of the final case, and the traveling crawler (a) is the front drive sprocket (1). It is suspended by the above-mentioned several rollers, an idler roller (2) and an upper carrier roller (20) supported by a vertical frame (7).

Therefore, the main part of the present invention will be described with reference to FIG. 1 and FIG. 2. A hollow support frame (21) is directed outward from the rear part of the track frame (4). It is projected, and the vertical axis (5) is erected on the protruding end. (3) is a holding member for supporting the idler rolling wheel (2), and the left and right holding rods (22) and (22) having a built-in biasing force toward the rear are provided with two horizontal rods (23) ( 24), and idler wheels (2) are positioned between the rear ends of the left and right holding rods (22) and (22) to rotatably support them.

Then, the front side horizontal rod (23) is fitted to the vertical axis (5) which is erected so that the holding member (3) is moved along with the idler wheel (2) along the vertical axis (5). It is constructed so that it can be rotated outward in a horizontal state with the fulcrum as the fulcrum. Further, the base of the inner holding rod (22) is fixed to the plate (25) for fixing, and the rear surface of the support frame (21) is bent. The lower end portion is vertically attached to the plate piece (26) fixed to the lower surface of the support frame (21) by a fastener (27).

Accordingly, when the lower end portion of the plate body (25) is fastened to the plate piece (26) by the fastener (27), the holding member (3) firmly fixes the idler wheel (2) in the front-back posture. It supports and circulates the suspended running crawlers (a).

When the fastener (27) is unfastened and the holding member (3) is rotated outward with the vertical axis (5) as a fulcrum, the lower end of the plate body (25) is a plate piece (26). While disengaging from the idler rolling wheels (2), the idler rolling wheels (2) and the idler rolling wheels (2) are displaced to the outer ring. (A) A clearance is provided between the inner peripheral surface and the inner peripheral surface so that the traveling crawler (a) can be easily removed. Further, when the traveling crawler (a) is mounted, it is carried out by the reverse operation to the above, which facilitates the mounting.

In addition, in the case of detaching the traveling crawler (a), if the upper carrier roller (20) is displaced downward as shown in FIG. It will be easier. That is, the carrier roller shaft (28) is divided into an outer part (28a) and an inner part (28b), which are connected by a joint (29), and fitted to the track frame (4) outward. If the structure is such that the fixed pipe (30) where it is inserted is slidable and the compression spring (31) gives an inward biasing force to the inner portion (28b), the traveling crawler (a) When the carrier roller (20) is pulled outwards against the urging force of the compression spring (31) during desorption, the outer part (28a) and the inner part (28b) are connected and the fixed pipe (30) is attached. By sliding inside, the outer portion (28a) is bent downward from the joint (29) portion as shown in FIG. 5, and the carrier roller (20) is displaced downward.

[0015]

[Effect of device]

 As described above, the attachment / detachment device according to the present invention includes the drive sprocket (1) and the idler wheel (2) at the front and rear portions, and the several sprocket (1) and the idler wheel (2) arranged between the drive sprocket (1) and the idler wheel (2). In a mobile agricultural machine in which a traveling wheel (a) is suspended on a wheel, a base of a horizontal holding member (3) that supports the idler wheel (2) is attached to a track frame (4). Since the idler wheel (2) is fitted to the vertical axis (5) of the shaft and is rotatable outwardly about the vertical axis (5) as a fulcrum, the idler wheel (2) is supported. By simply rotating the holding member (3) outward, the idler wheel (2) is displaced to the outer ring, and the idler wheel (2) and the running crawler (a) A clearance can be created between the peripheral surface and the traveling crawler (a) so that it can be easily attached and detached. Shortened effort is made to those labor-saving.

[Brief description of drawings]

FIG. 1 is an enlarged plan view showing a portion of an idler wheel.

FIG. 2 is a side view of the same portion.

FIG. 3 is a schematic side view of a combine.

FIG. 4 is a sectional view of a carrier roller portion.

FIG. 5 is an operation explanatory view of the same portion.

[Explanation of symbols]

 1 Drive sprocket 2 Idler wheel 3 Holding member 4 Track frame 5 Vertical axis a Traveling crawler

Claims (1)

[Scope of utility model registration request] 1. A front and rear drive sprocket (1) and an idler rolling wheel (2), and a plurality of rolling wheels arranged between the drive sprocket (1) and the idler rolling wheel (2).
In a mobile agricultural machine in which a la (a) is suspended, the base of the horizontal holding member (3) that supports the idler wheel (2) is located on the vertical axis (5) of the track frame (4). ), And the idler wheel (2) is configured to be rotatable outwardly about the vertical axis (5) as a fulcrum.