JPH0643165B2 - Mitsubishi case of tractor - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a trash case for a tractor, in which a hoar base can be changed, and moreover, a work for assembling a transmission can be carried out widely and safely at hand. It is a proposed case and can be used for tractors.

[Conventional technology]

As a technology to change the specifications of the foil base to one with long and short specifications while sharing the members as much as possible according to each request, the mesh case is generally divided into a front mesh case, a spacer mesh case, and a rear mesh case. Then, the length of the middle spacer mesh case is changed to long and short ones, but in such a structure, in order to compensate for lack of rigidity of the shaft support, the rear surface of the front mesh case, A shaft support wall is provided on each of the front faces of the rear mesh cases. However, because of the shaft support wall, both the front and rear mesh cases are box-shaped with the front and rear parts blocked, and the rotating shaft, bearings, gears, and other members are inserted into these mesh cases. The work of assembling is difficult, and most of the respective members are inserted from the upper opening provided at the top of the mission case, but it is inefficient and dangerous because the work is narrow and it is dark. Therefore, an opening is formed in the front support wall of the clutch housing, a mounting base is detachably attached to the front support wall so as to close the opening, and the propulsion shaft is pivotally supported on the mounting base. A power transmission device for a vehicle, characterized in that a detour transmission mechanism and a hydraulic clutch device are attached to the inside of the housing of the mounting base so as to be within the range of the opening (Japanese Utility Model Application No. 54-157613).
Is proposed. The proposed power transmission device is installed in advance by assembling the detour transmission mechanism, the hydraulic clutch device, etc. on the mounting base, and then mounting the mounting base to the opening of the front support wall of the clutch housing to perform the mounting work. It is designed to be easy.

[Problems to be Solved by the Invention]

According to the proposal of Japanese Utility Model Application No. 54-157613 mentioned above,
By providing an opening in the front support wall of the clutch housing or front mesh case, the transmission mechanism, the hydraulic clutch device, etc. can be easily assembled to the clutch housing or the front mesh case. However, in the case of adopting the structure in which the spacer mesh case is interposed between the front mesh case and the rear mesh case, after connecting the spacer mesh case to the clutch housing or the rear end wall surface of the front mesh case. The workability in assembling the mission mechanism in the spacer mission case is poor, and further improvement in the workability in assembling is required.

Therefore, a solution to improve productivity and maintenance work by facilitating easy and safe assembly work of the MISSION case of the tractor consisting of the front MISSION case, the spacer MISSION case and the rear MISSION case. A technical problem to be solved arises, and an object of the present invention is to solve the problem.

[Means for Solving the Problems]

The present invention is proposed in order to achieve the above-mentioned object, and an opening is provided in a support wall provided at a front and rear intermediate portion in a front mesh case, and a partition wall is detachably attached to the opening. In a mission case of a tractor that pivotally supports an input shaft, a speed change shaft, etc. by the support wall, a spacer mission case in which at least a front portion is opened between the front mission case and the rear mission case. And the bearing body is detachably attached to a mounting seat provided at the front edge of the spacer mesh case, and the front wall case and the spacer mesh case are respectively attached by the partition wall and the bearing body. The bearing is formed by pivotally supporting a transmission installed therein, and by coupling a rear end portion of the front mesh case to a vicinity of an outer edge portion of the mounting seat of the spacer mesh case. The there is provided a honey Chillon case of a tractor, characterized in that the Hi蔽.

[Action]

By inserting the components of the transmission (H) into the front mesh case (1) using the front (2) and the rear (3) which are both open, the main clutch (K) is moved to the front. The transmission (H) can be installed in the front part of the mesh case (1), and the transmission (H) can be installed in the rear part of the front mesh case (1) and the front part (6) of the spacer mesh case (5). ) That can be installed using the open part of
While inserting each component of (H), attach the partition wall (10) to the front mesh case (1) and mount the bearing body (15) at the front part of the spacer mesh case (5) to change the speed. The work of incorporating the device (H) can be performed widely and efficiently. The rear end of the front mesh case (1) is connected to the vicinity of the outer edge of the mounting seat (7) of the spacer mesh case (5), and is fixed to the mounting seat (7) of the spacer mesh case (5). The bearing body (15) is covered.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1 which is an exploded view of the A-B-C-D-D-E-F-G section in FIG. 2 and FIG. 2 which is a sectional view of the S-S section in FIG. Front (2) of the case (1)
The rear part (3) is opened and a mounting seat (4) is provided in the peripheral part of the rear part (3), and the front part (6) of the spacer mesh case (5) is opened and the mounting seat (4) is installed in the peripheral part. 7) is provided, the mounting seats (4), (7) are joined to each other, and the front mesh case (1) and the spacer mesh case (5) are connected with the bolts (21), (21).
The rear mesh case (8) is attached to the rear part of the spacer mesh case (5) and fixed with bolts.

A narrow mounting seat (9) is provided in the front-rear intermediate portion of the inner peripheral wall of the front mesh case (1), and the mounting portion (11) provided at the front part of the partition wall (10) is attached to the mounting seat ( Attach the partition wall (10) to the mounting seat (9) with bolts (12), (12), etc. so that the partition wall (10) can be detachably attached to the spacer mesh case (5).
Attach the mounting seat (13) to the mounting seat (7) of and attach the bolts (14),
A bearing body (15) that can be detachably attached to the spacer mesh case (5) is provided at (14) ..., and the main clutch (K) is placed in front of the partition wall (10) attached in this way. Interior in the case (1), partition wall (10) and bearing
With (15), the transmission (H) incorporated in the front mesh case (1) and the spacer mesh case (5) is supported. The bearing body (1) fixed to the mounting seat (7) of the spacer mesh case (5)
5) is covered by the front mesh case (1) connected to the vicinity of the outer edge of the mounting seat (7). Further, a narrow mounting seat (16) is provided at the intermediate portion of the inner peripheral wall of the spacer mesh case (5) in the front-rear direction so that the bearing body (17)
Is attached to the mounting seat (16), and the bearing body (17) is detachably mounted to the mounting seat (16) with the bolts (18), (18).
The transmission mechanism (I) installed in the spacer mesh case (5) is supported by the bearing bodies (15) and (17) and the front wall (19) of the rear mesh case (8). ing. The power of the engine on the left side of FIG. 1 is the main clutch (K),
Rear transmission case through transmission (H) and transmission (I)
It is transmitted to the rear wheel differential mechanism (J) installed in (8).

Next, an example of the assembling procedure will be explained. The partition wall (10) is attached to the mounting seat (9) of the front mesh case (1), and the front part
From (2), the main clutch (K) is supported on the partition wall (11) via the clutch sleeve (22), and the transmission mechanism (H) is installed from the rear part (3) to the front mesh case (1). Partition the front (1
1), the rear of the speed change mechanism (H) is supported by the bearing body (15), and this bearing body (15) is mounted on the spacer mesh case (5).
Install the transmission mechanism (I) into the spacer mesh case (5) through the front part (6) and the rear part (20) of the spacer mesh case (5) beforehand. , Bearing bodies (15)
When attaching the spacer to the spacer mesh case (5), the spacer mesh case (5) and the front mesh case (1) are fixed to each other. Mission Case (1)
Follow the procedure to install the spacer in the spacer case (5) that has been fixed.

In the illustrated example, since the clutch sleeve (22) is formed separately from the partition wall (10), the partition wall (10) does not need to be changed even if the specifications of the clutch output shaft (23) differ. There is an advantage that the cost can be reduced by changing only the sleeve (22).

Further, the transmission mechanism (H) in the illustrated example is configured such that the drive gear (24) of the main clutch output shaft (23) is meshed with the counter gear (26) of the counter shaft (25) to reverse gear the reverse idle shaft (29). (30) meshes with the rear counter gear (31), and one of the transmission gears (33) and (34) that has been idled on the transmission shaft (32) is replaced with the front transmission gear (33). The counter gear (26) is engaged with the other gear (34) by the reverse gear (30), and the gear changeover mechanism (35) is operated to select the gear (33) or (34). It is provided so as to be fixed to the speed change shaft (32) once, and
The rotation of 2) is further reduced by the speed change mechanism (I).

The present invention can be applied to various transmission mechanisms (H) and (I) in addition to the illustrated structures.

〔The invention's effect〕

The mesh case of the tractor according to the present invention is constructed as described above, and the front part is opened together.
(2) and by using the rear part (3) by inserting each component of the transmission (H) into the front mesh case (1),
The main clutch (K) can be installed in the front part of the front mesh case (1), and the transmission (H) can be installed in the rear part of the front mesh case (1) and in the spacer mesh case (5). The front wall (6) can be assembled by using the open part of the front part (6), and the partition wall (10) is attached to the front mesh case (1) while inserting each component of the transmission (H).
By mounting the bearings (15) on the front of the spacer mesh case (5), the work of assembling the transmission (H) can be performed widely and safely and efficiently. Of. Then, after fixing the bearing body (15) to the front surface of the spacer mesh case (5), the rear end portion of the front mesh case (1) is connected to the mounting seat (7) of the spacer mesh case (5). By doing so, each component is sequentially assembled in a rational procedure. Also,
Since the bearing body (15) mounted on the spacer mesh case (5) is covered by the front mesh case (1) connected to the mounting seat (7) of the spacer mesh case (5), the bearing body (15) is covered. There is no risk of oil leakage from the joint surface between the body (15) and the spacer mesh case (5).

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and FIG. 1 shows A- of FIG.
B-C-D-E-F-G sectional development view, FIG. 2 is the S-S line sectional view of FIG. References (1) …… Front mesh case (2), (6) …… Front part, (3) …… Rear part (5) …… Spacer mesh case (8) …… Rear mesh case (10) ...... Partition wall, (15) …… Bearing body (K) …… Main clutch, (H) …… Transmission mechanism

Claims (1)

[Claims] 1. An opening is provided in a support wall provided at a front-rear intermediate portion in a front mesh case, and a partition wall is detachably attached to the opening, and the input shaft and the transmission shaft are attached to the partition wall. In a trash case of a tractor supporting such a shaft, a spacer mesh case having at least a front portion opened is interposed between the front mesh case and the rear mesh case, and the spacer mesh case is in front of the spacer mesh case. A bearing body is removably attached to a mounting seat provided at an edge portion, and the partition wall and the bearing body axially support the transmissions installed in the front mesh case and the spacer mesh case, respectively. A tractor's missile in which the rear end of the front mesh case is connected to the vicinity of the outer edge of the mounting seat of the mesh case to cover the bearing body. Nkesu.