JPH0539257Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an oil supply device for a reaping machine such as a combine harvester or a binder.

[Prior art and problems to be solved by the invention] In general, this kind of reaping machine has operating parts such as a cutting blade, a grain culm combing body, a grain culm conveying body, etc. on the pre-processing part side, and these operation parts It is preferable to provide an oil supply device for appropriately supplying lubricating oil to the parts for smooth operation. Therefore, it has been proposed that the piping from the oil supply pump be branched to simultaneously supply oil to the operating parts that require oil supply. In this case, it is necessary to supply an appropriate amount of lubricating oil to each of these operating parts, but conventionally, the amount of lubricating oil supplied has been determined by the operator relying entirely on feel when turning on and off the oil supply pump. As a result, it is difficult to supply lubricating oil with high precision, and smooth operation may be impaired due to lack of lubricating oil, or dust, straw, etc. may adhere to excess lubricating oil. There is a problem with this.

Therefore, we installed an indicator pot in the piping from the oil supply pump to the operating part to visually check the amount of oil supplied.
It is proposed that the appropriate amount of lubricant be determined from the amount of lubricant stored here, but the lubricant supplied to the indicator pot may be subject to pulsations caused by the oil supply pump drive, causing violent waves. In particular, there is a problem in that it is difficult to judge the appropriate amount of lubricating oil. Moreover, the indicator pot needs to have a breather function by communicating with the outside air in order to supply and discharge lubricating oil. Conventionally, this breather function requires that the indicator pot has a lid, and this lid has an air vent. They responded by forming a
In this case, when the lubricating oil overflows, it overflows out of the indicator pot from the air vent and adheres to the outer circumferential surface of the pot, and this overflowing lubricating oil gets stuck to mud, straw, etc., and is quickly removed. There is a problem that the inside of the indicator pot becomes invisible.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was drafted for the purpose of providing a lubrication device for a reaper that can eliminate these drawbacks. The oil supply piping from the oil supply pump, which can be switched to non-operation, is branched to form multiple branch pipes, and each branch pipe is configured to supply oil to multiple operating parts that require oil supply, such as the cutting blade on the pre-processing section side. In the reaper, an indicator pot is provided in the middle of one of the branch pipes to determine whether or not lubricating oil is being supplied, and the indicator pot is connected in communication with the oil supply pump side. There is a lubricant inflow pipe port through which lubricant oil flows into the indicator pot, a lubricant outflow pipe port through which lubricant oil in the indicator pot flows out to the corresponding lubrication operation side, and a lubricant outflow pipe port to drain overflow lubricant oil in the indicator pot to the outside of the pot. and an overflow discharge piping port for the oil supply pump, and the indicator pot is configured as supply amount indicator means for indicating the appropriate supply amount by the amount of lubricating oil stored in the indicator pot during the driving process of the oil supply pump, The inflow pipe connected to the lubricating oil inflow pipe port is provided with a throttle member, and the overflow pipe connected to the overflow discharge pipe port is provided with an air vent pipe for communicating the indicator pot with outside air. It is characterized by being branched.

With this configuration, the present invention uses an indicator pot that determines whether or not lubricant is being supplied to indicate the amount of lubricant supplied, making it possible to supply just the right amount of lubricant. It is something.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a traveling body of a combine harvester, and a pre-processing section 2 is installed at the front of the traveling body 1 so as to be movable up and down via a lifting mechanism (not shown). The preprocessing unit 2 includes a divider 3,
The construction of the grain culm combing body 4, the cutting blade 5, the grain culm lifting conveyor 6, and other member devices is the same as in the past.

Reference numeral 7 denotes a mission case provided on the traveling machine body 1 side, and an input shaft 8 coaxial with the vertical swing fulcrum of the preprocessing section 2 is arranged above the mission case 7. Input pulley 8 provided on the input shaft 8
An endless belt 9 for power transmission is suspended between the drive pulley 7a of the transmission case 7 and the drive pulley 7a of the transmission case 7. 1
0 is a tension pulley for the endless band 9.

Furthermore, as shown in FIG. 4, a substantially inverted L-shaped mounting piece 13 is fixed to the base end of the frame rod 12 to which the gear case 11 is fixed. A bracket 14 having a boss portion 14a rotatably inserted therein is attached to the provided support shaft 13a. Reference numeral 15 denotes a fuel pump fixed to the bracket 14, and a shaft 15a of the fuel pump 15
A drive pulley 16 is fixed to the drive pulley 16 via a tightening bolt 16a. The bracket 14 has two positions: a contact position where the drive pulley 16 contacts the endless belt 9 on the input pulley 8a side with the support shaft 13a as a fulcrum and rotates the oil supply pump 15, and a separate position where the drive pulley 16 is separated from the endless belt 9. However, normally, it is moved to the separated position by a tensioner 17 (the biasing force is set weaker than a torsion bullet 21, which will be described later) extended between the frame rod 12 and the bracket 14. It is biased and held.

On the other hand, a boss portion 20a of an operating lever 20 disposed on a preprocessing section cover 19 near the driver's seat 18 is rotatably inserted through the tip side of the support shaft 13a. A torsion bomb 21 is fitted on the outer periphery of the boss portion 14a on the bracket side. One end 21a of this torsion machine 21 is locked to the base side of the operating lever 20, and the other end 21b
is locked by a locking pin 14b protruding from the bracket 14, and by raising and lowering the operating lever 20 from the upright non-refueling position to the down refueling position, the torsion ammunition 21 is accumulated. The accumulated force causes the brackets 14 located at the separated position to be moved to the abutting position by piercing the tension bomb 17.

Here, 12a is a bracket for mounting the tension bomb 17 on the frame rod 12 side, 12b is a stopper for the operating lever 20 operated to the refueling position, 13b is a stopper for the bracket 14 located at the separated position,
14c is a stopper for the operating lever 20 located at the non-lubrication position.

Reference numeral 22 denotes an oil tank for lubricating oil provided on the back side of the grain culm combing body 4, and a pipe 23a that runs from the oil tank 22 through the oil supply pump 15 is branched into a plurality of pipes along the way. Each branch pipe 23
b, 26 are arranged at each operating section of the pretreatment section 2 such as the cutting blade 5 and the grain culm combing body 4, and further at each operating section that requires oiling, such as the chain 24 of the grain culm lifting conveyor 6. is,
Lubricating oil is supplied from an oil supply nozzle 23 provided at the tip, but in this embodiment, as shown in FIG. The section is interposed.

That is, the indicator pot 25 constituting this indicator part includes a mounting part 25a fixed to the preprocessing part cover 19 side, a transparent cup part 25b fitted to the mounting part 25a, and visible from the driver's seat 18.
An inflow pipe port 25c connected to the branch pipe 26 on the oil supply pump 15 side and a pipe 2 to the chain 24 side
6a, and an overflow discharge pipe port 25 formed to extend to the vicinity of the upper ceiling of the indicator pot 25.
It is composed of e. Further, a check valve 27 and a restriction collar 27a are provided between the inflow side pipe 26 and the inflow pipe port 25c, so that the lubricating oil can flow into the indicator pot 25 without being affected by the pressure of the oil supply pump 15. care has been taken to ensure an influx of people.

Furthermore, the upper end of an overflow pipe 29 having a T-shaped pipe joint 28 connected to its lower end is connected to the lower end of the overflow discharge pipe port 25e. The pipe joint 28 includes the outflow pipe 26a.
At the same time, an overflow pipe 29a and an air vent pipe 29b leading to the chain 24 side are connected in communication. When lubricating oil is supplied to the indicator pot 25 by driving the oil supply pump 15, the air inside the indicator pot 25 escapes to the outside air from the overflow pipe 25e, and the indicator pot 2
When the lubricating oil overflows into the pipe 2, the lubricating oil is discharged from the overflow discharge pipe port 25e to the pipe 2.
The structure is such that oil is supplied to the chain 24 via 9 and 29a. Furthermore, when the oil supply pump 15 is stopped, air flows into the indicator pot 25 from the overflow discharge pipe port 25e through the pipes 29b and 29 communicating with the outside air, and lubricating oil is supplied to the chain 24 through the discharge pipe 26a. I'm starting to do that. Here, 25f is a mark provided on the outer periphery of the cup portion 25b, and in this embodiment, after the oil supply pump 15 is driven, the lubricating oil that has flowed into the indicator pot 25 is placed between the top stage and second stage marks 25f. The amount of oil supplied to each operating part is set to be appropriate at the stage when this point is reached.

In the embodiment of the present invention configured as described above, the grain culms to be planted in the field are harvested by the pretreatment section 2 and conveyed to the rear threshing section. In the reaping work, pre-processing section 2
In order to supply lubricating oil to each of the operating parts, the operator only has to operate the control lever 20 from the upright non-lubrication position to the laid-down oiling position where it abuts the stopper 12b. That is, when the operating lever 20 is in the upright state, the torsion bullets 21 are not stored, so the bracket 14 is located at a separated position where the drive pulley 16 is separated from the endless belt 9 by the tension bullets 17 and the oil supply pump 15 does not operate. However, the control lever 2
0 is laid down, the torsion bullet 21 is accumulated, and the bracket 14 resists the tension bullet 17 from the separated position until the drive pulley 16 comes into contact with the endless belt 9 and the refueling pump 15 is activated. It will be located at this location. In this case, the bracket 14 is rotated to the contact position by the accumulated force of the torsion bullet machine 21, more precisely, the biasing force obtained by subtracting the tensile force of the tension bullet machine 17 from this accumulated force, and the drive pulley 16 is rotated to the endless belt 9. Therefore, the pressing force of the driving pulley 16 on the endless band 9 is always constant regardless of the magnitude of the operating force of the operating lever 20 toward the collapsed side, and therefore the operating lever 20 and the oil supply pump 15 are As with an integrated type, the operating force is too large and the shaft 15a is damaged or the endless belt 9 is worn out, or the operating force is too small and the oil supply pump 15 does not operate sufficiently. Can be reliably prevented,
By means of the twister 21 that elastically connects the operating lever 20 and the fuel pump 15, the fuel pump 15 can always be operated with an appropriate pressing force, and reliable and stable fueling work can be performed. Furthermore, the vibration caused by the driving pulley 16 rolling on the endless belt 9 can be suppressed by the torsion bullet machine 21 as a result of the operation lever 20 and the oil supply pump 15 being elastically connected by the torsion bullet machine 21. Therefore, the operator can operate the operating lever 20 without vibration, which provides a good feel in the hand and reduces fatigue.

When the lubricating oil supplied to the indicator pot 25 by the operation of the oil supply pump reaches between the top and second stage marks 25f, the user releases the operating lever 20. As a result, the operating lever 20 returns to the position where it contacts the stopper 14c due to the accumulated force of the torsion bomb 21, and the bracket 14 returns to the separated position due to the biasing force of the tension bomb 17, and the refueling pump 15
stops and the refueling operation is completed.

In this way, the operator can switch between the refueling operation and the non-refueling operation of the refueling pump 15 using the operating lever.
The lubricating oil supply status can be observed by visually observing the indicator pot 25. In other words, in this device, an indicator pot 25 is provided in one of the oil supply pipes connected to the oil supply pump 15, and when the oil supply pump 15 is activated when the operation lever 20 is set to the oil supply position, the oil tank 22 The lubricating oil inside will flow into the indicator pot 25, and by visually observing this inflow situation, the operator can reliably judge that the lubricating oil is being supplied and whether the oil tank 22 is empty or not. Therefore, it is possible to reliably avoid a problem in which lubricating oil is not supplied even if the pump is driven.

Moreover, based on the driving of the oil supply pump 15, the lubricating oil is gradually stored in the indicator pot 25, and the air inside the pot escapes to the outside via the overflow discharge pipe port 25e and the air vent pipe 29b. The lubricating oil is stored in the indicator pot 25 without stagnation. And in this case, the lubricating oil is, in particular, the aperture collar 27
Since lubricating oil is supplied to the indicator pot 25 via a, even if the lubricant pump 15 supplies lubricating oil in a pulsating manner, it is guaranteed that this will be destroyed and the lubricating oil will be supplied to the indicator pot 25 in a violently undulating state. This makes it possible to easily and reliably determine the correct amount of lubricating oil. When the amount of lubricating oil stored reaches the appropriate position, the operating lever 20 may be released to stop the operation of the oil supply pump 15, thereby determining that the appropriate amount of lubricating oil has been supplied.

With the present invention implemented in this way, the appropriate supply amount of lubricating oil is accurately determined based on the amount of lubricating oil stored in the indicator pot 25, and there is no possibility of excess or shortage of lubricating oil. is definitely prevented.

Moreover, this supply of the appropriate amount of lubricant is achieved by effectively utilizing the indicator pot 25 for determining whether or not lubricant is being supplied.
The parts can be used interchangeably, and even if the refueling pump is switched between activation and deactivation by manual operation, it can be installed without problems, and the indicator pot 25 can be visually checked rather than simplifying the structure. The operator's burden can be reduced by simultaneously determining the presence or absence of lubricant supply and the appropriate supply amount.

Furthermore, if the oil supply pump 15 continues to operate without realizing that the appropriate supply amount has been reached, the excess lubricating oil supplied to the indicator pot 25 will be drained from the overflow discharge piping port 25e to the piping 29,
Since the lubricating oil overflows to the chain 24 side where the oil should originally be supplied through 29a, the lubricating oil overflows and adheres to the outer wall of the indicator pot 25, like a conventional indicator pot with an air vent in the lid. There's nothing to do. Furthermore, when the oil supply pump 15 is stopped, the lubricating oil in the indicator pot 25 is transferred to the pipe 2.
Outside air flows into the indicator pot 25 through the overflow discharge pipe port 25e, and the lubricating oil thus stored is supplied to the chain 24 through the discharge pipe port 25d and the pipe 26a. That will happen.

Note that the pipe 29a may be returned to the oil tank 22 instead of the chain 24 as shown in FIG.

[Operation and Effect] In summary, since the present invention is constructed as described above, the supply of lubricating oil to each operating part is as follows:
When the oil supply pump is activated, the amount of lubricant to be supplied is accurately determined based on the amount of lubricant stored in the indicator pot installed in one of the divided oil passages, which may cause an excess or shortage of lubricant. can be reliably prevented. Furthermore, this supply of the appropriate amount of lubricating oil is achieved by effectively utilizing an indicator pot to judge whether or not lubricating oil is being supplied, so parts can be used interchangeably, and the oil supply pump can be operated manually It can be installed without any problem even if it switches between activation and deactivation, and it not only simplifies the structure, but also allows you to check the presence or absence of lubricant supply and the appropriate amount by simply checking the indicator pot. This allows the operator to make judgments at the same time, reducing the burden on the operator.

Furthermore, since the lubricating oil is supplied to the indicator pot via the throttle member, even if the lubricant pump supplies lubricating oil in a pulsating manner, this is interrupted, and as a result, the lubricating oil violently waves. Since the lubricating oil is supplied to the indicator pot in a calm and constant state rather than in a fixed state, fluctuations in the oil level within the indicator are reduced, and the correct amount of lubricating oil can be easily and reliably determined.

Furthermore, air is vented to facilitate the supply and discharge of lubricating oil into the indicator pot, instead of forming an air vent in the lid as in the past, the overflow is connected to the overflow discharge piping port. Since this is done by forming a branch in the water pipe, the overflowing lubricating oil will not overflow and adhere to the outer wall of the indicator pot, and as a result, the lubricating oil adhering to the outer wall of the indicator pot will not be contaminated with mud or straw. It is possible to reliably avoid a problem in which the amount of lubricant in the indicator pot becomes invisible due to buildup.

[Brief explanation of the drawing]

The drawings show an embodiment of the oil supply device for a reaper according to the present invention, in which FIG. 1 is a side view of the main parts of the reaper, FIG. The figure is an action explanatory diagram showing the lubrication state, No. 4
5 is a perspective view of the vicinity of the driver's seat, and FIG. 6 is a diagram of the lubricating oil supply route. In the figure, 1 is a traveling machine body, 2 is a pre-processing section, 8 is an input shaft, 9 is an endless belt, 15 is a refueling pump, 16 is a drive pulley, 20 is an operating lever, 23b and 26 are branch pipes, and 25 is an indicator pot. , 25c is a lubricating oil inflow pipe port, 25d is a lubricant oil outflow pipe port, 25
e is the overflow discharge pipe port, 27a is the aperture collar, 29, 29a are the overflow pipes,
29b is an air venting pipe.

Claims (1)

[Scope of utility model registration request] The lubrication pipe from the lubrication pump, which can be switched between lubrication operation and non-operation, is branched to form multiple branch pipes to supply lubrication to multiple operating parts that require lubrication, such as cutting blades on the pre-processing section side. In the reaper configured as above, an indicator pot is provided in the middle of one of the branch pipes to determine whether or not lubricating oil is being supplied, and the indicator pot communicates with the oil supply pump side. The lubricating oil inlet pipe port is connected to allow lubricating oil to flow in, the lubricant outflow pipe port allows lubricant oil in the indicator pot to flow out to the corresponding lubrication operation side, and the lubricant oil outlet pipe port is used to drain overflow lubricant oil in the indicator pot. and an overflow discharge piping port for discharging the lubricant, and the indicator pot is configured as a supply amount indicator means for indicating the appropriate supply amount by the amount of lubricant stored in the indicator pot during the driving process of the oil supply pump. In addition, a throttle member is provided on the inflow side pipe connected to the lubricating oil inflow pipe port, and
1. A refueling device for a reaper, characterized in that an overflow pipe connected to an overflow discharge pipe port is branched with an air vent pipe for communicating an indicator pot with outside air.