JPH0216893Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a blazer device for a tractor.

<Prior art> The transmission case of a tractor stores lubricating oil to lubricate the gear group built inside, so it cannot be completely sealed and a blazer must be provided. There is.

Therefore, in the past, it was installed at a suitable location on the upper surface of the mission case, for example, in the oil supply cap of the oil supply hole formed on the upper surface of the mission case.

However, since the fuel cap is usually exposed, there are problems such as rainwater, car wash water, etc. entering the transmission case, as well as problems such as mud and dirt adhering to the cap and clogging the cap.

There are also other models that have a blazer attached to the transmission case to correspond to the upper part of the gear group.
In this case, there was a risk that the oil scraped up by the gear group would flow out of the blazer.

<Purpose of the invention> In view of these conventional problems, the purpose of the present invention is to provide a blazer device that can prevent oil leaks, prevent water from entering from the outside, and prevent clogging. That is.

<Structure of the invention> As a means for achieving the above object, the present invention provides a structure in which a power transmission shaft that transmits power through a transmission device using a group of gears is attached to a partition wall provided in a transmission case spaced apart from each other in the front and back. Rotatably supported,
In a tractor equipped with a floor sheet covering at least a portion of the transmission case, the transmission case is covered with the floor sheet from above on both left and right sides, and the gear group is not arranged. The main feature is that a blazer is provided on the top side of the mission case located between the front and rear partition walls.

<Embodiment> Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. In FIG.
and a rear wheel 5. 6 is a bonnet, and 7 is an instrument panel. 8 is a hydraulic system for lifting and lowering the work machine;
It is mounted on the transmission case 3. 9 is a rear wheel fender, and a floor sheet 1 is placed between the left and right rear wheel fenders 9 to cover the hydraulic system 8, etc.
0 is set. 11 is a step. 1
Reference numeral 2 represents a steering wheel, and numeral 13 represents a driver's seat, which are removable between the solid line position and the imaginary line position, respectively, and can be changed to forward driving or backward driving as required.

As shown in FIGS. 1 and 2, the mission case 3 is constructed by connecting a front case 14, an intermediate case 15, and a rear case 16 with bolts. Inside this transmission case 3, a main transmission 17, a creep transmission 18, an auxiliary transmission 19, and a rear wheel differential device 20 are installed.
A PTO transmission 21 is incorporated, and lubricating oil 22 is stored up to a level approximately at the center of the top and bottom to lubricate the gear group. The creep transmission 18 and the PTO transmission 21 are connected to the intermediate case 15.
The sub-transmission device 19 and the rear wheel differential device 20 are provided in the front half of the rear case 16 in a vertically corresponding manner.
In the rear half of the intermediate case 15, the traveling transmission shaft 23 and the PTO transmission shaft 24 are vertically parallel, and no gear group is provided to scrape up oil. In other words, there is no gear group in the space sandwiched between the partition wall 25 formed on the upper side of the intermediate case 15 to support the traveling transmission shaft 23 and the partition wall 26 formed on the front end side of the rear case 16. Not placed. Therefore,
Intermediate case 15 corresponds to between these partition walls 25 and 26.
A blazer 27 is attached to the upper surface side. This blazer 27 is made by bending the upper end of a pipe downward, and is fixed by screwing into a screw hole formed in the upper wall of the intermediate case 15. The blazer 27 is covered from above by a floor sheet 10 provided to cover the rear side from the intermediate case 15, and the floor sheet 10 covers the mission case 3 on both left and right sides from above, as shown in FIG. It spans and covers.

Therefore, by providing the blazer 27 at a location corresponding to the space between the front and rear partition walls 25 and 26, the amount of oil splashed toward the blazer 27 is reduced.
This will prevent oil leaks. In particular, this partition wall 2
Since there is no gear group between the bulkheads 25 and 26, even if there are front and rear creep transmission devices 18, PTO transmission 21, sub-transmission device 19, etc., and oil is scooped up by these gear groups, the bulkhead 25, 26 functions to block oil from scattering, and is very effective in preventing oil leakage. Also, blazer 2
There is a floor sheet 10 above and on both the left and right sides of 7, which covers the floor sheet 7, which prevents rainwater and car wash water from entering from outside, and prevents the lubricating oil 2 from entering.
It is possible to prevent the occurrence of rust due to moisture being contained in 2. Of course, clogging due to mud etc. can also be prevented.

Note that 28 is a creep transmission shaft, 29 is a pinion shaft, and 30 is a PTO transmission shaft.

It goes without saying that the specific structure of the blazer 27 is not limited to the embodiment, and that various structures can be adopted.

<Effects of the invention> According to the invention, the transmission case is located in a position where the transmission case is covered with a floor sheet from above on both left and right sides, and between the front and rear bulkheads where no gear group is arranged. A blazer is installed on the top side of the case, and even if oil is scraped up by the gear group of the transmission,
The blocking function of the front and rear partition walls effectively prevents oil from scattering toward the blazer, and effectively prevents oil from leaking from the blazer. In addition, since the top and left and right sides of the blazer are covered with floor sheets, it is possible to effectively prevent rainwater from entering from the outside and clogging due to mud and dirt. From the above, even if the blazer is made low and compact, there is no problem and there is an advantage that the blazer can be made compact.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being a sectional side view of the main part, FIG. 2 being a sectional front view of the same, and FIG. 3 being an overall side view. 3...Mission case, 10...Floor seat, 15...Intermediate case, 23...Traveling transmission shaft,
24...PTO gear shift shaft, 25, 26...Bulkhead, 2
7...Blazer.

Claims (1)

[Scope of utility model registration request] A power transmission shaft that transmits power through a transmission using a group of gears is rotatably supported by a partition wall provided in the transmission case spaced apart from each other in the front and back. In a tractor equipped with a seat, the upper surface of the transmission case in a position where the transmission case is covered with a floor sheet from above on both left and right sides and located between the front and rear bulkheads where the gear group is not arranged. A blazer device for a tractor, characterized in that a blazer is provided on the side.