JPH0732Y2 - Combine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a combine in which a working unit such as a threshing unit is provided on a machine frame supporting a pretreatment unit and a traveling device.

Conventional technology The adjustment work of the pretreatment section of the combine and the inspection / maintenance work of various devices (engine, transmission, etc.) arranged between the threshing section and the pretreatment section are performed by the pretreatment section. It was detached from the traveling aircraft on board and reconnected after the work.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention By the way, during the inspection and maintenance work of the combine, the work of disconnecting and connecting the aircraft, especially at the time of connection, the alignment of the connection position and the reconnection of the lifting hydraulic cylinder of the pretreatment unit etc. Troublesome post-work was required.

In view of such circumstances, the present invention makes it possible to easily carry out inspection / maintenance work on the engine, transmission, etc., and after the inspection / maintenance, troublesome post-work such as adjustment of connection position between the traveling machine body and the pretreatment unit Therefore, it is an object of the present invention to provide a combine that can improve the work efficiency because it is unnecessary.

Means for Solving the Problems In order to achieve the object, the present invention provides a combine machine in which a pretreatment section and a working frame supporting a traveling device are provided with working sections such as a threshing section and the like. In addition to providing an inner frame that can be stretched and fixed in any direction,
An upper and lower hydraulic pressure for pivotally supporting an upper end of the pretreatment frame on a support frame fixed to the front portion of the inner frame, while one end of a bracket fixed to the front portion of the inner frame is attached to the pretreatment portion. Attach the other end of the cylinder, and attach the pretreatment unit to the inner frame.
A double-acting hydraulic cylinder provided between the machine frame and the inner frame between the inspection and maintenance position where the machine is moved forward with the inner frame, and the work position where the machine is moved backward to perform the mowing work. It is configured to be movable by.

The pretreatment unit is in the grounding posture, the engagement between the locking tool and the pin is released, and the traveling machine body is retracted. Then, the inner frame slides in the body frame and the distance between the pretreatment section and the traveling body changes, and the engine, transmission, etc. are exposed to the outside, so that inspection and maintenance work can be easily performed. After the work is completed, the traveling machine body is advanced to engage the locking tool with the pin, and the mowing and threshing work is again possible.

Embodiment An embodiment of the present invention will be described with reference to the drawings. In the figure, 1 is a raising case 1a, a cutting blade 1b, and a lifting and conveying device 1c.
And the like, 2 is a machine body frame having a rectangular cross-section and supports the traveling device 3 on the lower surface, and a working unit 4 such as a threshing unit on the upper surface.
I support you. The machine body frame 2, the traveling device 3, and the working unit 4 constitute a traveling machine body A. As shown in FIG. 2, reference numeral 5 denotes a rectangular tube-shaped inner frame which is slidably installed in the machine body frame 2 in the machine front-rear direction, and 6 denotes a support frame which is erected on the upper end of the inner frame 5. 7 is a pre-processing frame. The support frame 6 and the pretreatment frame 7 are pivotally supported about the axis P so as to be vertically rotatable. Reference numeral 8 denotes a lifting hydraulic cylinder of the pretreatment unit 1, which is fixed to the lower surface of the inner frame 5 and the middle portion of the pretreatment frame 7 via brackets 8a and 8b, respectively. That is, the support frame 6, the pretreatment frame 7, and the hydraulic cylinder 8 are connected in a substantially triangular shape in a side view with the hydraulic cylinder 8 at the bottom, and the pretreatment frame 7 is actuated by the operation of the hydraulic cylinder 8 about the axis P. The structure is such that the pretreatment unit 1 is rotated to move up and down. Reference numeral 9 is an engaging tool pivotally supported by a support frame 6 about a shaft 9a. The engaging groove 9b is engaged with a pin 10 provided on the machine body to allow the inner frame 5 to slide and expand and contract. Spring that locks and biases in the engaging direction
It is engaged and held by 11. Reference numeral 12 is a stock conveyor chain, and 12a is a tip side conveyor belt, which constitute a lifting conveyor 1c having a handling depth adjusting function. Reference numeral 13 is a floating sprocket of a feed chain 15 that receives the grain culm transported by the lifting and transporting device 1c at the transport end portion and feeds it to the threshing unit, and 14 is also a drive sprocket.

4 to 5 show another embodiment of the present invention. In contrast to the configuration in which the sliding of the inner frame 5 is locked / unlocked by the engagement of the locking tool 9 and the pin 10 in the above-described embodiment, a pair of left and right side frames is used in this example.
A bracket between the cross frame 2c and the inner frame 5 of the body frame 2 which is composed of 2a, 2b and a cross frame 2c connecting the side frames 2a, 2b.
A double-acting hydraulic cylinder 22 is provided via 20, 21, and the inner frame 5 is configured to be slidable, expandable, and expandable by the hydraulic cylinder 22, and a floating sprocket for the feed chain 15 is provided.
23 is provided on a shaft P'extending concentrically with the pulley shaft of the pre-treatment section input pulley 1 ', and the feed chain 15 is made expandable and contractable in the conveying action direction by the action of the tension roller 25 and the tension spring 26. It is designed to synchronize with expansion and contraction. Reference numeral 24 is a transmission gear case, and the power introduced through the input pulley 1 ′ is transmitted to the pretreatment unit 1 via the transmission gear case 24. The axis P ′ serves as a rotation fulcrum of the pretreatment unit 1 and a rotation fulcrum of the stock carrier transport chain 12.

According to this configuration, the inner frame 5 can be slidably expanded and contracted by the operation of the double-acting hydraulic cylinder 22, so that the inspection and maintenance work of the engine, the transmission, etc. can be easily performed, and the sliding and expansion of the inner frame 5 is synchronized. Then, the feed chain 15 expands and contracts so that the relative position between the end of the stock transfer chain 12 and the start of the feed chain 15 is always kept constant. Therefore, the attachment (knotter, cutter, etc.) working machine 27 is attached. In order to prevent problems such as lifting of the mowing part due to the movement of the specific gravity in the front and rear of the machine body when performing work by appropriately adjusting the interval between the traveling machine body A and the pretreatment unit 1, and maintaining a good balance of the machine body front and rear at all times. Can perform stable work.

In the above-mentioned configuration, when performing inspection / maintenance work on the engine E, the transmission M, etc., first, as shown in FIG. 3, the pretreatment unit 1 is first grounded, and the engagement state of the locking tool 9 and the pin 10 is changed. It releases and the traveling body A is retreated. Then,
The inner frame 5 slides in the machine body frame 2 to change the distance between the pretreatment unit 1 and the traveling machine body A, and the engine E and the transmission arranged in a narrow space between the threshing unit and the pretreatment unit 1 Since various devices such as M are exposed to the outside, inspection / maintenance work of these devices can be performed easily and quickly without being disturbed by the pretreatment section constituent members and the like. After the work is completed, if the traveling machine body is advanced and the locking tool 9 and the pin 10 are engaged with each other, the mowing and threshing work can be performed again. Therefore, even if an engine trouble occurs during the mowing work, the inspection / checking can be performed. After servicing, the pretreatment section 1 can be contacted and separated with the hydraulic cylinder 8 and the like still incorporated, and the work can be immediately restarted, and the workability of the reaping can be greatly improved. .

Advantageous Effects of Invention As described above, the present invention is a combine in which a pretreatment unit and a working unit such as a threshing unit are provided on a machine frame supporting a traveling device, and an inner inner body which can be expanded and contracted and fixed in the machine frame in the machine longitudinal direction. While the frame is provided, the upper end of the pretreatment frame is pivotally supported on the support frame fixed to the front portion of the inner frame so as to be vertically rotatable, and the bracket fixed to the front portion of the inner frame has one end as the pretreatment portion. An inspection and maintenance position in which the other end of the attached lifting hydraulic cylinder is attached and the pretreatment unit attached to the inner frame is moved forward of the machine body together with the inner frame,
Over the work position where you move it backwards to perform mowing work,
Preliminary processing to attach to the inner frame when performing inspection / maintenance work on the engine, transmission, etc. by making the traveling machine move forward and backward, or by making it movable by a double-acting hydraulic cylinder provided between the machine frame and the inner frame. These devices can be exposed to the outside simply by sliding the parts together with the inner frame to the front of the machine body, and the inspection and maintenance work of these devices is hindered by the components of the pretreatment part. Can be done easily and quickly without

Also, after the work is completed, if the pretreatment unit attached to the inner frame is retracted integrally with the inner frame and slid to the work position where the mowing work is performed, the mowing and threshing work becomes possible again. With the upper end of the pretreatment frame pivotally supported on the support frame, or with the hydraulic cylinder still installed, the pretreatment unit can be brought in and out of contact with the machine body.
Work can be resumed immediately.

[Brief description of drawings]

1 to 3 show an embodiment of a combine according to the present invention, and FIG. 1 is a side view showing the appearance of the combine, and FIG.
FIG. 3 is a rear view showing the relationship between the body frame and the inner frame, FIG. 3 is a side view showing the displacement state of the pretreatment section and the traveling body, and FIGS. 4 to 5 are other embodiments of the present invention. ,
FIG. 4 is a side view showing the outer appearance of the combine, and FIG. 5 is a plan view showing the relationship between the machine body frame, the inner frame, the lifting conveyance device, and the feed chain. 1 ... Pre-processing unit, 2 ... Airframe, 3 ... Traveling device, 4 ...
Working part, 5 ... Inner frame.

Claims (1)

[Scope of utility model registration request] 1. A combine in which a working unit such as a threshing unit is provided on a body frame supporting a pretreatment unit and a traveling device,
An inner frame is provided in the body frame that is capable of expanding and contracting in the longitudinal direction of the body, and the upper end of the pretreatment frame is pivotally supported up and down on a support frame that is fixed to the front portion of the inner frame. Attach the other end of the lifting hydraulic cylinder with one end attached to the pre-treatment part to the bracket that is fixed to the front part, and move the pre-treatment part attached to the inner frame to the front of the machine together with the inner frame. And a work position where the harvesting work is performed by retreating and moving backward, or by a double-acting hydraulic cylinder provided between the machine body frame and the inner frame to move the combine machine.