JPH1056834A - Balancing weight in travel working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a balancing weight easy to manufacture in a simple and inexpensive scheme, along with facilitating weight regulation using a plural number thereof being uniform and identical in shape. SOLUTION: This balancing weight 9 is so designed that a columnar block body of hook shape when viewed sideways is formed and one piece 90 thereof and another piece 91 are provided with through holes 92 in parallel with each other for threading fitting bolts 10 therethrough. A plurality of the balancing weight 9 is combined with one another inside a space provided between a support frame 7 set in the front of a traveling machine body and the machine body and made mountable on the support frame 7 so as not to be markedly projected forward from the space.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved structure of a balance weight which is mounted on a traveling machine such as a rice transplanter or a cultivator so as to be adjustable in weight.

[0002]

2. Description of the Related Art Conventionally, a balance weight capable of adjusting the weight mounted on a traveling body as described above has been disclosed in Jpn.
No. 2,242, and Japanese Utility Model Publication No. Sho 53-41453, all of which are known as weight balances (support frames) which are mounted so as to protrude forward from the frame of the traveling body. In contrast, the weight is adjusted by sequentially stacking and fixing auxiliary balance weights formed in a flat, wide block body upward.

[0003]

The structure of the balance weight according to the structure disclosed in the above publication is composed of a balance weight for a gantry, which is protruded and supported on the body frame, and an auxiliary balance weight for weight adjustment, which is stacked and fixed on the gantry. , Because it uses multiple balance weights with different shapes,
In addition to manufacturing with different types of casting molds and processing methods, several types of balance weights must be prepared, so that there are drawbacks such as increased cost and complicated handling. Further, since the weight adjustment of the balance weight is performed by simply stacking flat wide auxiliary balance weights in the upward direction, there is a problem that the balance weight protrudes greatly from the body frame to the front of the body and occupies a large space in plan view. Further, when such a balance weight structure is provided in the rice transplanter, the balance weight protruding forward of the fuselage can easily contact the ridge of the field when the fuselage turns,
In addition, there is a problem that the headland becomes large correspondingly, and there is a problem that, for example, when the upward installation space in the front part of the fuselage is narrow and restricted, it is not possible to perform appropriate weight adjustment.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the balance weight of the traveling work machine according to the present invention comprises:
A hook-shaped columnar block body is formed in a side view, and a through hole for inserting a mounting bolt is formed in one piece and the other piece in parallel.

[0005] Further, in a space formed between the support frame installed in the front part of the traveling body and the body, a plurality of the balance weights are combined and attached to the support frame in the space.

[0006]

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a walking type rice transplanter (running body), which is a body frame (transmission case) constituting the rice transplanter 1.
An engine 4 is mounted on the front side of the engine body 2 via a transmission case 3, while a seedling scraped from a seedling mounting table 5 a on which a mat seedling is mounted with a planting claw 5 b is mounted on the rear side of the body frame 2. Planting device 5 for planting seedlings, and the seedling mounting table 5a
Frame 2H extending rearward and upward from behind
At the lower part of the body frame 2, a float 2F for paddy field sliding is mounted in the front-rear direction, and the wheels 3b are pivotally supported on wheel transmission cases 3a supported rearward from both sides of the transmission case 3. ing. In addition, all of these basic configurations are conventional.

Reference numeral 6 denotes a resin bonnet that covers the upper part of the traveling machine body in the front-rear direction. The front half of the bonnet 6 functions as an original bonnet that covers the upper part of the engine 4, but the rear part is used for supplying seedlings. Auxiliary seedling platform 6a that can be placed
Is formed. The hood 6 is used for the body frame 2.
Are supported at a predetermined height by a plurality of support members such as a front support frame (support frame) 7 formed at the front of the vehicle and a rear support frame 7a erected on the rear side.

As shown in FIGS. 4 and 5, the support frame 7 includes a gate-shaped support frame (protector frame) 70 extending forward and upward from the body frame 2, and a gate-shaped support frame 70. An inverted U-shaped mounting frame 71 for connecting and fixing the middle part of the supporting frame 70 in the lateral direction, and a supporting rod 72 erected on both sides of the upper side of the mounting frame 71 and fixing the bonnet 6 at the upper end are integrally formed. On the front side of the mounting frame 71, mounting bolts (mounting tools) for the balance weight 9 described later are formed.
10 and a plurality of mounting holes 71a through which the mounting holes 7 are inserted.
By mounting an appropriate number of balance weights 9 to the support frame 7 via mounting bolts 10a to the wheel 3b,
The weight balance between the front and rear of the aircraft centered on the vehicle is equalized so that the aircraft can travel stably.

[0009] As shown in FIG.
Is formed in a hook-shaped columnar block having a stepped portion 9a in which a corner portion of a rectangular cross section is concavely formed inward in an orthogonal plane in a side view. Are made into a short piece 91, and the thickness of both pieces is made substantially the same.
A through hole 92 through which the mounting bolt 10 is inserted is formed in parallel with 91. A plurality of balance weights 9 having the same shape are prepared in the same shape, and the long pieces 90 and the short pieces 91 of the adjacent balance weights 9 are connected to each other by opening each piece so that each piece has the same axis. The mounting bolts 10 are passed through the through holes 92, and the mounting bolts 10 are inserted into the mounting holes 71 a of the mounting frame 71 and fastened with the nuts 11 so that the mounting bolts 10 are joined in a combination as shown in FIGS. The balance weight 9 is fitted inside the support frame 70 so that it can be mounted with an appropriate weight in a state where the balance weight 9 is prevented from protruding forward.

That is, in the illustrated example, the support frame 70 is provided with its front end positioned at substantially the same position as the front end of the bonnet 6, and the front-rear gap between the front surface of the mounting frame 71 and the front end of the float 2F is reduced by the short piece 91. The distance is substantially the same as the length, and the space is formed between the upper surface of the mounting frame 71 and the lower surface of the bonnet 6 so as to be a space in which the balance weight 9 can be installed in an appropriate number of steps. As shown in FIG. 4, the lower balance weight 9 is fixed by inserting the mounting bolt 10 into the through hole 92 formed in the short piece 91 in a state where the outer surface of the long piece 90 is joined to the mounting frame 71. At the same time, with the inner surface of the long piece 90 of the middle balance weight 9 joined to the inside of the long piece 90 in the step 9a, the mounting bolt 10 is inserted through the through holes 92, 92 formed in both. In the state where the inner surface of the short piece 91 of the upper-stage balance weight 9 is joined to the outer surface of the short piece 91 of the middle-stage balance weight 9, the mounting bolt 10 is inserted into the through holes 92, 92 of both. The balance weights 9 are inserted and inserted in three stages so as to be mounted and fixed.

As described above, the plurality of balance weights 9 joined by combining the long piece 90 and the short piece 91 are joined to the mounting frame 71 without greatly projecting from the front of the support frame 70 also serving as a protector frame. It is stacked so that it fits comfortably in a shape adapted to the shape of the space formed between the bonnets 6, and a number of balance weights 9 having a predetermined balance weight are easily mounted and supported in the space in a compact manner. I have to.

The balance weight 9 configured as described above
According to the mounting structure, the balance weight 9 is formed into an L-shape having a step 9a recessed in an orthogonal plane by a long piece 90 and a short piece 91 in a side view. Since the holes 92 are formed in parallel, it can be manufactured at a low cost using a single casting mold or the like, and can be processed easily with a simple configuration.

The step 9a of the balance weight 9
The mounting bolt 10 is inserted through the through hole 92 in a state where the corner portion of the other balance weight 9 is joined to the other, or the step 9a of the long piece 90 and the short piece 91 of the adjacent balance weight 9 are joined to each other. Thereby, the plurality of balance weights 9 can be easily combined and mounted in a desired shape. At this time, the step 9a can be satisfactorily joined to the corner of the other balance weight 9 and fixed stably, so that the balance weight 9 combined and fixed by the vibration of the engine 4 or the body vibration during running is reduced. Tackling and loosening can be prevented well.

Therefore, when it is not preferable to install the balance weight 9 so as to protrude greatly in front of the fuselage as in the rice transplanter 1 or the like, the support frame 7, the bonnet 6 and the engine which also serve as a protector in front of the rice transplanter 1 are provided. A suitable number of balance weights 9 having an appropriate weight can be collectively mounted and fixed in a compact manner by a simple mounting work in the shape of the space formed between the airframes 4 and the like, and the balance weight 9 can be mounted. Even when the aircraft is turned around at the ridge during planting work while traveling with good weight balance without protruding greatly to the front of the aircraft, problems caused by the balance weight 9 contacting the ridge are prevented and the turning radius is small. By turning around, planting work with few headlands can be performed efficiently and favorably.

The balance weight 9 is not limited to the above-mentioned combination, but is shown in FIG. 6 according to the shape of the support frame, the shape of the balance weight installation space, the balance weight support structure required for each model, and the like. As described above, it can be freely performed in various combinations. That is, FIGS. 7A to 7D show a combination example in which four balance weights 9 are attached so that the attachment can be attached to the front part of a tailor-type working machine in which an attachment is attached to the rear part of the body. In any case, the balance weight 9 is connected to the front side without increasing the combined height so much, so that the weight moment is increased and the balance adjustment can be performed simply and favorably.

On the other hand, FIG. 1E shows an example in which six balance weights 9 are assembled and fixed, and FIG. 1F shows an example in which eight balance weights 9 are assembled and fixed. As described above, the balance weight 9 of the present invention can freely perform the above-described examples of fixing and other fixing in accordance with the condition of the body of a different model, and can perform weight adjustment satisfactorily.

[0017]

The present invention configured as described above has the following effects. According to the invention of claim 1,
By making the through holes for mounting bolts parallel to one side and the other side of the hook-shaped columnar block body as one side and the other side, weight is achieved by using multiple balance weights of the same shape. Adjustment can be easily performed, and it can be manufactured at a low cost with a simple configuration. Also,
When combining a plurality of balance weights, one balance weight of the adjacent balance weight is joined to the step of the other balance weight, and a mounting bolt is inserted into the through hole to form the plurality of balance weights into a desired shape. And the hook-shaped steps can be joined to the corners of the other balance weight well and fixed stably. It is possible to prevent rattling, loosening, and the like due to body vibration during traveling.

According to the second aspect of the present invention, the plurality of balance weights which are joined and joined as described above are stacked so as to fit within the shape of the space formed between the support frame and the body, and Thus, a number of balance weights having a predetermined balance weight can be easily attached while being compactly assembled without greatly protruding from the front of the support frame.

[Brief description of the drawings]

FIG. 1 is a side view of a rice transplanter provided with a balance weight according to the present invention.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a perspective view of a balance weight.

FIG. 4 is a side sectional view of a main part showing a state where a balance weight is attached to a support frame.

FIG. 5 is a front view of FIG. 4;

FIGS. 6A to 6F are simplified side views each showing an example of assembling a plurality of balance weights.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rice transplanter (running body) 6 Bonnet 7 Support frame 9 Balance weight 9a Step 10 Mounting bolt 70 Support frame 71 Mounting frame 71a Mounting hole 72 Support rod 90 One piece (long piece) 91 Other piece (short piece) 92 Through hole

Claims (2)

[Claims] 1. A balance weight for a traveling working machine, wherein a hook-shaped columnar block body is formed in a side view, and through holes for mounting bolts are formed in one and the other of the block blocks in parallel. 2. The traveling work according to claim 1, wherein a plurality of the balance weights are combined and attached to the support frame in the space formed between the support frame and the fuselage installed at the front portion of the traveling body. Machine balance weight.