JPS6028877Y2 - Lubricating oil supply structure for work vehicles - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lubricating oil supply device for agricultural vehicles such as combines, or civil engineering construction vehicles such as backhoes.

For example, in a combine harvester, in order to supply lubricating oil to many parts such as the mowing blade sliding part of the chain reaping device such as the hoisting device and various conveying devices, the lubricating oil pump is equipped with a dedicated drive device. However, the drive device is expensive and extremely uneconomical, and the installation of the device not only makes the surrounding area crowded, but also requires a large installation space.

In view of the above-mentioned circumstances, the present invention aims to eliminate the above-mentioned drawbacks at once by effectively utilizing the drive device originally provided.

Therefore, the technical means taken by the present invention includes a drive device that reciprocates a working device that is reciprocally movable and biased to move in one direction, and a human operating tool that switches the operating state of this drive device. A working vehicle is provided with a lubricating oil pump driven by the drive device and a supply state switching mechanism that cuts off and on the supply of lubricating oil, and the manual operation is performed on the side that moves the working device in the biasing direction. Lubricating oil is supplied only when the tool is switched.
The above-mentioned human operating tool and the above-mentioned supply state switching mechanism are linked.

Therefore, according to the technical means of the present invention, the lubricating oil pump is driven by effectively utilizing the drive device inherent in the work vehicle itself, thereby eliminating the drawbacks of providing a special drive device. This makes it possible to simplify the lubricating oil supply structure and improve economic efficiency.

Furthermore, the fact that the working equipment is biased to move in one direction is effectively used to supply lubricating oil only when the load on the driving equipment is small, so for example, lubricating oil can be applied both during the reciprocating movement of the working equipment. Unlike in the case of the pump, there is no inconvenience such as the load becomes large and the drive force of the drive device has to be increased more than necessary because it also serves as a pump drive. This makes it possible to supply lubricating oil to the pump, eliminating the problem of it also serving as a pump drive.

A threshing section 3 is mounted on a vehicle body 2 equipped with a crawler traveling device 1, and a control section 4 and a preprocessing device 5 are arranged side by side in the front part of the threshing section 3, and a waste straw processing device is installed in the waste wall of the threshing section 3. 6 are connected in series to form an agricultural combine harvester as an example of a working vehicle.

To configure the pretreatment device 5, a lifting device 9 is provided on a reaping frame 8 that is driven to swing up and down by a fluid pressure drive device 7, and a lifting device 9 is provided at the back of this lifting device 9 and near the ground.
Conveying device 10.10 for raising and merging shell culms and reaping device 11
In addition, conveying devices 13 and 14 are provided to hold the harvested husks in a sideways position and to hold the threshing husk to the threshing and conveying device 12.

The conveying devices 13 and 14 on the tip side and the stock side are provided so as to be integrally movable back and forth in the longitudinal direction of the culm around the axes on the rear side thereof, and biased downward by their own weight. At the same time, a drive device 15 consisting of a motor 15a and a control device 15b for the motor 15a is provided on the back of the lifting device 9, and a lift arm 16 is connected to the output shaft of the motor 15a, and the arm 16 is connected to the roadside and the transport frame. 17 are pivotally connected by a link 18, and a device 19 is provided which adjusts the handling depth in the threshing machine 3 by changing the culm joining position of both conveying devices 13 and 14.

A mechanism 20.21 is provided for automatically and manually controlling this depth adjustment device 19.

The automatic handling depth control mechanism 20 is constructed as shown in FIGS. 1 and 2.
As shown in the figure, a sensor switch S1. S2.
S3 are provided at intervals in the culm direction to constitute a device 22 for detecting the length of the raised shell culm, and also to configure the adjusting device 1.
9 is provided with a device 23 for detecting its swinging posture, and the detection signals of this posture detecting device 23 and the culm length detecting device 22 are input to a comparator 24, and the conveying device is adjusted according to the detected value of the culm length. In order to change the attitude of 13.14 as set, a signal from the comparator 24 is input to the motor control device 15b, and the human control mechanism 21 has an operating tool (hereinafter referred to as an operating lever) near the operating section 4. )2
5 and is closed by swinging the lever 25.

S5 is provided, and this switch S1. Each of S5 is connected to the motor control device 15b.

In the combine harvester having the above configuration, a structure A is provided for supplying lubricating oil to the various parts of the culm reaping devices 9.10, 11, and 12.13.

To configure the lubricating oil supply structure A, as shown in FIG.
A lubricating oil pump P such as a gear type is interlocked and connected to the device 15 for driving the handling depth adjusting device 19, and an oil pump P connected to the oil supply path a and suction oil path b1 of the pump P and the lubricating oil tank T is connected to the device 15 for driving the handling depth adjusting device 19. Each of the route C and the oil supply route d for the refueling target B,
As shown in Figure 3A, a port X communicates oil passages a and b and oil passages C and d, respectively, and a port the drive device 15.
The operating lever 25 of the human operating mechanism 21 and the operating arm 26 of the switching valve V are interlocked and connected via a release wire 27, and the conveying device 13.14 is connected downward to the connecting portion between the wire 27 and the operating lever 25. A stopper 40 and a flexibility mechanism 29 are provided to reversibly switch the switching valve V from port X to port Y in cooperation with a spring 28 only when the swinging lever 25 is operated, and the conveying device 13 is biased by its own weight. During the downward swing of .14, lubricating oil is forcefully supplied to the object B from the oil filling nozzle 30 described below by the driving force of the driving device 15 when the driving load is small. .

That is, by using the manual operation mechanism 21 for the handling depth adjustment device 19 and the driving force of the driving device 15, and by using the driving force of the driving device 1
By selecting a time when the driving load of 5 is small, the required amount of lubricating oil can be supplied as needed without changing the driving device 15 to one with a large driving force.

When arranging the lubricating oil nozzle 30 for the lubricating object B, as shown in FIG. A portion 32a that prevents the culm from being caught in the triangular gap formed by the endmost blade of the cutting blade 33 and the support rod 31 near the culm entrainment prevention device 32, and integrally connected thereto. and is located close to the upper surface of the sliding blade to prevent the stock side of the cutting culm from being caught in the lower part of the support rod 31 as the sliding blade moves. character-shaped portion 32b
A lubricating nozzle 30 is provided near the entanglement preventive device 32 to spray and supply lubricating oil over the gold plate of the cutting blade 33. In order to allow the guide 35 to be replaced when it wears out, the nozzle 30 is provided on the side opposite to the conveying portion, which is removably attached to the case 36, that is, on the non-conveying side.

In addition, for the conveying device 10 for culm merging, the conveying claw 3
A pair of chain guides 38 a that also serve as a standing guide for No. 7
, 38b is removably attached to the case 39 so that the nozzle 30 can be replaced when worn.

In addition, as another embodiment, a power intermittent clutch is interposed in the power transmission system between the drive device 15 and the lubricating oil pump P, and this clutch and the operating lever 25 are connected in place of the configuration of the switching valve (2). The supply state of the lubricating oil may be changed by connecting and disengaging the clutch, and the supply state switching mechanism C referred to in the present invention is a general term for the switching valve 15 and the clutch.

When the handling depth adjustment device 19 of the type that urges the conveyance device 13.14 upward by a spring, weight, etc. against its own weight is used, the upper part of the conveyance device 13.14 is used. The operating lever 2 as a manual operating tool is operated so that lubricating oil is supplied when the lever is swung.
5 and the supply state switching mechanism C may be linked.

Furthermore, in addition to the conveying devices 13 and 14 described in the previous embodiment, the working devices to be driven by the drive device 15 include the pre-processing device 5 of a combine harvester, the lift arm device of a tractor, the excavating device of a backhoe, and the excavator of a shovel. Various devices such as a scooping device for a loader can be used, and the object to which lubricating oil is supplied can be changed in various ways.

[Brief explanation of drawings]

The drawings show an embodiment of the lubricating oil supply structure for a working vehicle according to the present invention. Fig. 1 is an overall side view of a combine harvester, Fig. 2 is a lubricating oil supply system diagram, and Fig. 3 A 9 port shows flow path switching. It is a sectional view showing a state. 3... Threshing section, 13.14... Culm conveying device, 15... Drive device, 21...
Manual operation mechanism, C... Supply state switching mechanism, P
......Lubricating oil pump, ■...Flow path switching valve.

Claims (1)

[Claims for Utility Model Registration] ■ A drive device 15 for reciprocating the working device 13, 14, which is reciprocally movable and biased to move in one direction, and a human operating tool 25 for switching the operating state of the drive device 15. A working vehicle is provided with a lubricating oil pump P driven by the drive device 15 and a supply state switching mechanism C that cuts off and on the supply of lubricating oil, and the working vehicle 13
．． The human operating tool 25 and the supply state switching mechanism C are linked so that the lubricating oil is supplied only when the manual operating tool 25 is switched to the side that moves the lubricant 14 in the direction of the urging force. Lubricating oil supply structure for work vehicles. ■ The supply state switching mechanism C is a flow path switching valve ■ provided in the middle of the lubricating oil supply path.Claim No. 2 for Utility Model Registration
The lubricating oil supply structure for the work vehicle described in . (2) The lubricating oil for a working vehicle according to the utility model registration claim (2), wherein the supply state switching mechanism C is a power intermittent clutch interposed in a power transmission system between the drive device 15 and the lubricating oil pump P. Supply structure. ■ A request for registration of a utility model in which the working device 13, 14 is a culm conveying device 13, 14 provided in a vertically swingable state and biased by its own weight in order to adjust the handling depth in the threshing section 3. A lubricating oil supply structure for a work vehicle according to any one of the ranges (1) to (2).