JPH1189395A - Balancing weight for pretreating part in combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a balancing weight for a pretreating part in a combine harvester capable of readily keeping the front and rear balance of a machine body with the pretreating part at the time of performing operations in an ill- drained paddy field and further preventing reaping performances of the pretreating part from deteriorating. SOLUTION: This balancing weight for a pretreating part in a combine harvester is obtained by respectively and detachably installing weights 20 of a required weight on the tip sides of divider frames 14a and the like, located on the left and right outermost sides in the forward direction of the machine body and protruding in the plural divider frames 14a and the like protruding from a lower position of a pretreating part 6 to the front of the machine body. The weights 20 of the same weight are respectively attached to sites on the tip sides of the divider frames 14a and the like and in left and right symmetry about the forward direction of the machine body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pretreatment unit of a combine that cuts a culm caused by a culm, and transports the culm from a raking device to a threshing unit. The present invention relates to a balance weight of a pre-processing unit in a combine that can easily balance the front-rear of the machine body and the pre-processing unit at the time, and can prevent a decrease in the mowing performance of the pre-processing unit.

[0002]

2. Description of the Related Art Conventionally, a pre-processing unit equipped with a comb and a scraping and conveying device is provided at the front of a machine body so as to be able to move up and down, and a combine unit having a threshing unit and a sorting unit is provided on the body body behind the machine. The field travel is performed by a crawler traveling device in which an elastic crawler is wound between driving wheels and idler wheels provided on both sides of the body, and as a whole combine, the preprocessing unit and the body Although it is preset so that the front and rear weight balance with the main body side is almost equal, when working and traveling in a wet field, the knotter is especially used for a small combine that cannot take a long ground contact length of the crawler traveling device. When an additional device such as is installed, it is easy for the traveling of the elastic crawler to often cause sinking of the body of the machine, and as a result, the pre-processing unit rises relatively (head up). ) Is will occur, cutting performance of the pre-processing unit had a problem that, decreases.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems in view of the above-mentioned situation, and the object thereof is to achieve an extremely simple structure. The balance of the pre-processing unit in the combine that can effectively and reliably suppress the head-up of the pre-processing unit due to the sinking of the body of the body and prevent a decrease in the mowing performance while performing a stable and smooth field traveling operation It is intended to provide weight.

[0004]

Means for Solving the Problems In order to solve the above-mentioned problems, a first technical means adopted by the present invention is to suspend a pre-processing unit in front of an airframe body so as to be able to move up and down, and A plurality of divider frames protruding forward from the lower part of the fuselage are provided at predetermined intervals in the fuselage width direction, and, among the divider frames, the leading ends of the divider frames protruding from the left and right outermost parts in the body advancing direction. The second technical means is that each of the weights is bilaterally symmetric with respect to the leading end side of each divider frame and with respect to the body traveling direction. It is characterized in that each part is mounted with the same weight.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 and 2, reference numeral 1 denotes a hopper-type small combine. The combine 1 is provided at a front portion of an airframe main body 3 provided with a crawler traveling device 2 from a grain culm combing body 4, a weeding body 5 and the like. Pre-processing unit 6
A driver's seat 7 is provided behind the driver's seat 7 and a hopper tank 8 is mounted at the rear of the driver's seat 7. The combine 1 is configured such that a predetermined amount of kernels are transferred from the harvested culm transported from the hopper 6 through the threshing unit 10 into the hopper tank 8, and the kernels flow down to a storage bag (not shown) therebelow.

At the front of the body 3, a base end 11 a of a transmission pipe 11 for transmitting a driving force to a pre-processing unit 6 is supported so as to be able to move up and down, and a front end 11 b inclined forward.
As shown in FIG. 3, a pipe gear case 12 extends in the machine width direction at a position below the pre-processing unit 6, and a left and right end and a substantially central position of a support pipe 13 provided in parallel with the pipe gear case 12. In addition, pipe-shaped divider frames 14a, 14b and 14c are integrally protruded forward, respectively, and each of the weeds 5 is attached to the tip thereof.

Reference numerals 15a and 15b denote sweeping mechanisms which form a part of the sweeping / conveying device 9.
a and 15b are respectively arranged above the support pipe 13 in plan view, and the left and right divider frames 14a and 14c
Each rake mechanism 15 is attached to brackets 16
a and 15b are supported at the front side, and the arm pipes 17a and 17b which are bent inward in front of each other support the front ends of the rake mechanisms 15a and 15b and hold them in a forwardly inclined state. At the same time, the cover bodies 18, 18 for covering the weeds 4, 4 are fixed to mounting surfaces 19, 19 formed at the distal ends of the arm pipes 17a, 17b.

Here, a pre-processing unit 6 is provided between the left and right brackets 16 and 16 and the arm pipes 17a and 17b.
Weights 20 and 20 having the same shape and weight located on the left and right sides of the right and left divider frames 14a,
14c is detachably mounted on the distal end side of 14c and symmetrically with respect to the body traveling direction F. That is, as shown in FIGS. 4 (a) and 4 (b), the weights 20, 20 each have a main body 20 having a required thickness and a substantially rectangular shape.
A front mounting portion 21 and rear two rows of mounting portions 22 and 22 are formed in a stepped shape on the back surface 20b of a, and stop plates 23a and 23b are screwed to the mounting portion 21 and the lower mounting portion 22, respectively. The weight 20 is fixed by sandwiching the arm pipe 17b and the bracket 16 between each protruding end of the stop plate 23a, 23b and the back surface 20b.

The main body 20a of the weight 20 is shown in FIG.
(B) is vertically symmetrical in shape, and of the fitting grooves 24 formed along the upper and lower edges of the back surface 20b, the fitting groove 24 at the lower edge is engaged with the upper surface of the divider frame 14c. Positioning is performed when the weight 20 is attached and fixed.

In the above description, the case where the weight 20 is attached to the divider frame 14c located on the leftmost side in the body traveling direction F has been described. However, when attaching the weight 20 to the rightmost divider frame 14a in the body traveling direction F, The weight 20 shown in FIG. 4B is turned upside down,
Back surface 20b of weight 20 on divider frame 14c side
And the back surface 2 of the weight 20 on the divider frame 14a side
0b may be mounted so as to be symmetrical by changing the posture so as to be opposed to each other. During this mounting operation, the mounting portions 22 of the rear two rows formed on the main body 20a are turned upside down and located at the lower stage. Will be used. Reference numeral 25 denotes a cutting blade device that extends below the support pipe 13 in the machine body width direction.

Since the present invention is configured as described above,
When cutting and threshing work is performed, the raised culm culled by each weeding body 5 is combed with the cereal culm, raised by the body 4, cut by the cutting blade device 25, and then raked. The harvested grain culm is taken over from the mechanisms 15a and 15b to the grain culm supply chain (not shown) via the raking and conveying device 9, and is supplied to the threshing unit 10. In such harvesting and threshing of grain culm, especially when working and traveling in a wetland field, the small combine 1 that travels is used.
Since the crawler traveling device 2 cannot take a long contact length, the sinking of the body 3 is induced, and the head of the pre-processing unit 6 relatively rises, and the grain stem is raised and raised by the body 4. The root cutting position of the cutting blade device 25 with respect to the cereal stem rises and changes, resulting in a decrease in the cutting performance that adversely affects the subsequent scraping and conveying operation.

Therefore, when traveling in a wet field in which the head of the pre-processing unit 6 is raised as described above, the brackets 16 and 16 respectively correspond to the tip ends of the divider frames 14a and 14c located on the left and right outermost sides in the machine body traveling direction F. If the weights 20, 20 are attached via the arm pipes 17a, 17b, the weight of the pre-processing unit 6 increases, and the weight balance between the body main body 3 and the front-rear weight shifts toward the front of the body. Up can be prevented.

Since the weights 20, 20 are attached to the distal ends of the divider frames 14a, 14c located on the left and right outermost sides, the operation of each device for forming the pre-processing section 6 and the cutting and conveying path of the trichomes are blocked. Such troubles are not induced, and the work of attaching and detaching the weights 20 can be easily performed. In addition, weight is added to the distal ends of the divider frames 14a and 14c which are located at the farthest position from the base end 11a of the transmission pipe 11 supporting the pre-processing unit 6 on the body main body 3 side, so that the transmission pipe 11 is relatively heavy. With the small and light weights 20, 20, a great effect on the front and rear weight balance can be obtained.

[0014]

In summary, according to the present invention, a plurality of divider frames are provided in the body width direction by suspending a pre-processing unit in front of the body of the vehicle so as to be able to move up and down, and projecting forward from the position below the pre-processing unit. The required weights are detachably attached to the leading end of the divider frame that protrudes out of the divider frame at the left and right outer sides in the advancing direction. The weight can be mounted by effectively using the limited space without hindering the mowing and transport operations of each device that forms the part, and the balance with the body of the machine during wet field work etc. is well maintained. Thus, it is possible to prevent a decrease in the mowing performance due to the head-up, and to easily secure a running posture of the aircraft suitable for the wetland and dryland field conditions. In addition, since each of the above weights is mounted with the same weight on the tip side of each divider frame and in a region that is symmetrical with respect to the advancing direction of the fuselage, it is not necessary to check the left and right differences of the weights to be mounted and the mounting location Can be easily confirmed, and the manufacturing cost can be reduced because the same material and the same weight are sufficient. And so on.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a combine.

FIG. 2 is a partially omitted front side view of the combine.

FIG. 3 is a plan view of a main part showing a mounting state of a weight.

FIG. 4A is an enlarged plan view of a main part of a weight mounted between a bracket and an arm pipe on a divider frame. (B) is a side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combine 3 Airframe main body 6 Preprocessing part 14a Divider frame 14b Divider frame 14c Divider frame 20 Weight F Aircraft traveling direction

Claims (2)

[Claims] 1. A pre-processing unit is suspended in the front of a body of a vehicle so as to be able to move up and down, and a plurality of divider frames projecting from a position below the pre-processing unit to the front of the body are provided at predetermined intervals in the width direction of the body. In addition, of the divider frame, a weight of a required weight is detachably attached to a distal end side of the divider frame that is located on the left and right outermost sides in the advancing direction of the aircraft and is detachably mounted. Balance weight. 2. The balance of a pre-processing unit in a combine, wherein each of the weights is mounted with a same weight on a front end side of each of the divider frames and in a portion which is symmetrical with respect to the body traveling direction. weight.