JPH082206A - Rear axle housing available in rear two-axle wheeler - Google Patents

Abstract

PURPOSE:To make a side gap properly and simply adjustable as well as to make improvements in the steering stability of a rear two-axle wheeler. CONSTITUTION:Two wear plates 15 and 15 are set up in side gaps G and G to be formed in an interval between rear leaf springs 31, 31 and leaf spring brackets 12, 12, and two locking bolts 16 and 16 are pierced through these leaf spring brackets 12 and 12, and then screwed in these wear plates 15 and 15, thereby these wear plates 15 and 15 lockingly supported on the leaf spring brackets 12 and 12 in a detachable manner.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a rear axle housing used in a rear two-axle vehicle.

[0002]

BACKGROUND ART Normally, in this type of rear two-axle vehicle, for example, a large rear-two-axle truck, the tandem axle trunnion-type rear axle is excellent in driving force, and particularly good on rough roads.
Suspension is adopted. The tandem axle trunnion type rear suspension is rotatably supported by the left and right trunnion shafts supported by the left and right trunnion brackets on the left and right side rails of the frame on the truck and the left and right trunnion shafts. Left and right rear leaf springs that support the drive and dead axles at the front and rear ends, and left and right fronts that connect the drive axle to its trunnion bracket below the trunnion shaft and drive axle. The lower torque rod and the left and right rear lower torque rods that connect the dead axle to the trunnion bracket below the trunnion shaft and dead axle, and its rear leaf splices. A front upper torque rod connecting the drive axle to the frame above the rail and a rear upper torque rod connecting the dead axle to the frame above the rear leaf springs. Can be assembled with.

In the tandem axle trunnion type rear suspension in which the rear leaf spring is fixed to the axle housing by the leaf spring bracket, the rear leaf spring and the leaf Since there is a side gap with the spring bracket, the leaf spring bracket is
The plate is welded and the wear plate is subjected to its rear leaf springs to avoid lateral wear of the rear leaf springs. However, in such a rear axle supporting method, since the side gap is adjusted by the shim, it is very difficult to make the side gap proper, and it is difficult to improve the steering stability. .

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a rear axle used for a rear two-axle vehicle, which allows the side gap to be properly adjusted, facilitates the adjustment, and improves steering stability. -In the provision of housing.

[0005]

Means corresponding to the object and the operation thereof
A wear plate is placed in the side gap formed between the rear leaf spring and the leaf spring bracket, and a securing bolt is threaded through the leaf spring bracket and screwed onto the wear plate. The wear plate releasably and fixedly supports the wear plate on the leaf spring bracket, and the wear plate adjusts the side gap and also the offset rear leaf spring. Is received by the wear plate.

[0006]

DESCRIPTION OF SPECIFIC EXAMPLES Specific specified examples of the rear axle housing used in the rear axle of the present invention will be described below with reference to the drawings. 1 and 2 show a specific example 10 of a rear axle housing used in a rear two-axle vehicle of the present invention, which is applied to a large truck in which a tandem axle trunnion type rear suspension 30 is utilized. Shows. Its rear axle
The housing 10 is embodied in a dead axle housing, which is combined with a dead axle shaft 21 to form a dead axle 20 and whose tandem axle trunnion type rear suspension 30 allows the heavy-duty truck. Supported by the frame. Of course, the tandem axle trunnion type rear suspension 30 is
Trunnion shafts supported by left and right trunnion brackets on the left and right side rails of the frame,
The trunnion shaft is rotatably supported on the front and rear ends of the drive axle and its dead axle 2
Left and right rear leaf springs 31 and 3 supporting 0
1 and left and right front lower torque rods connecting the drive axle to the trunnion bracket below the trunnion shaft, and the dead axle 20 below the trunnion shaft to the trunnion bracket. The left and right rear lower torque rods that are connected to the front lower torque rods that connect the drive axle to the frame above the rear leaf springs 31, 31 and the rear leaf It is assembled above the springs 31, 31 with a rear upper torque rod connecting the dead axle 20 to the frame.

The dead axle housing 10
Are the left and right spring seats 11, 11 formed on both ends of the upper surface thereof, and the left and right leaves corresponding to the left and right spring seats 11, 11 and integrally projected on both end sides of the upper surface thereof.・ Spring bracket 1
2, 12 and left and right rear lower torque rod brackets 1 which are integrally projected at both ends of the lower surface thereof
3 and 13 and a rear upper torque rod bracket 14 integrally projecting on the upper surface at the center of the length direction, a tube structure is adopted, and there are left and right wear The plates 15 and 15
The rear leaf springs 31, 31 and the leaf spring brackets 12, 12 are arranged in the side gaps G, G formed between the left and right fixing bolts 16, 16 and the leaf spring brackets. 12 and 12 are correspondingly penetrated, and the wear plates 15 and 15 are correspondingly screw-coupled to the wear plates.
The plates 15, 15 are to be removably and fixedly supported by the leaf spring brackets 12, 12.

The left and right leaf spring brackets 12, 12 have support holes 17, 17 for the springs.
Rear leaf spring 3 on seats 11, 11
A supporting hole 1 is formed by facing the side surface of 1, 31 and making a hole.
7, 17 through which the fixing bolts 16, 16 are penetrated, and the fixing bolts 16, 16 are used to attach the wear plate 15, 1.
5 can be fixedly tightened.

Left and right wear plates 15, 15
Is machined to a specified thickness and has a bolt hole 18,
18 have been drilled. Of course, the bolt holes 18 and 1
8 is penetrated from one plate surface to the other plate surface and is drilled in the wear plates 15 and 15 and threaded,
The fixing bolts 16 and 16 can be screwed together.

The wear plates 15 and 15 are set to a plate thickness that allows the side gaps G and G to be properly adjusted. In this case, considering the variations in the side gaps G, G, the side gaps G, G can be obtained by appropriately aligning the wear plates having different plate thicknesses.
Adjustment becomes easy.

The left and right fixing bolts 16 and 16 are ordinary hexagonal bolts, and the lengths of the bolts and the threaded portions are the leaf spring brackets 12 and 16.
12 and the wear plates 15 and 15 are determined correspondingly. Of course, the left and right fixing bolts 16,
16 is its leaf spring bracket 12, 1
2 is penetrated by the support holes 17, 17 and the tip is
The wear plates 15,15 are screwed into the bolt holes 18,18 of the plates 15,15 to tighten the wear plates 15,15 to the leaf spring brackets 12,12. As such, the fastening bolts 16,16 removably and fixedly support the wear plate 15,15 to the leaf spring bracket 12,12.

The left and right spring seats 11, 1
1, left and right leaf spring brackets 12, 1
2, left and right rear lower torque rod bracket 1
3, 13 and the rear upper torque rod bracket 14 are formed in a normal shape.

Also, the dead axle shaft 2
1 is normally fitted to the dead axle housing 10 by extending both ends thereof outwardly from both ends of the dead axle housing 10 and rotatably supporting idler wheels at both ends thereof. To do.

The dead structure in which the above-mentioned structure is adopted.
The axle housing 10 has springs
The rear ends of the left and right rear leaf springs 31, 31 are placed on the seats 11, 11, and are stopped by the left and right leaf spring brackets 12, 12 to be the tandem axle trunnion type rear suspension. It is supported by the frame of the heavy truck by 30. As such, when the dead axle housing 10 is set, its wear plates 15, 1
5 between the rear leaf springs 31 and 31 and the leaf spring brackets 12 and 12, while aligning the bolt holes 18 and 18 with the support holes 17 and 17, the leaf spring brackets 12 and 12; , And then the fixing bolts 16,
16 is passed through the support holes 17, 17 and the tip is screwed into the bolt holes 18, 18 and tightened.

Thus, the wear plate 1
5, 15 are fastened to the leaf spring brackets 12, 12 by the fixing bolts 16, 16 and are fixedly supported to adjust the side gaps G, G properly and easily. . Therefore, when the rear leaf springs 31, 31 are laterally displaced by the running of the heavy-duty truck, the wear plates 15, 15 are caused to move by the rear leaf springs 3.
1,31 and its leaf spring due to the lateral displacement of its rear leaf spring 31,31
Avoid wear of the brackets 12, 12. Also, the side gaps G, G are the wear plates 15, 1.
Since it is properly adjusted by 5, the steering stability is improved for the large truck.

FIG. 3 shows the aforementioned tandem axle.
Fig. 9 shows a specific example 40 of a rear axle housing used in a rear two-axle vehicle of the present invention, which is applied to a large truck in which a trunnion type rear suspension 30 is utilized. This rear axle housing 40
The aforementioned rear axle housing 10 is constructed with at least one shim 41 additionally disposed between its wear plates 11, 11 and its leaf spring brackets 12, 12, and side·
The gaps G and G can be adjusted more appropriately. That is, this rear axle housing 40
Now, the side gaps G, G are about to be finely adjusted.

FIG. 4 shows the aforementioned tandem axle.
Fig. 5 shows a specific example 50 of a rear axle housing used in a rear two-axle vehicle of the present invention, which is applied to a large truck in which a trunnion type rear suspension 30 is utilized. This rear axle housing 50
The side gap adjusting mechanism provided in the aforementioned rear axle housing 10 is being modified and configured. In the rear axle housing 50, the left and right wear plates 51, 51 are the rear leaf
A side gap G formed between the springs 31 and 31 and the leaf spring brackets 12 and 12,
G, and left and right fixing bolts 52, 52 are correspondingly passed through the sink holes 53, 53 of the wear plates 51, 51 to move the heads 54, 54 into the sink holes 53, 53.
53, the leaf spring brackets 12, 12 are correspondingly penetrated into the support holes 17, 17 of the leaf spring brackets 12, and are tightened with nuts 55, 55 with spring washers 56, 56 interposed. The wear plates 51, 51 are removably and fixedly supported by the corresponding leaf spring brackets 12, 12.

FIG. 5 shows the aforementioned tandem axle.
Fig. 7 shows a specific example 60 of a rear axle housing used in a rear two-axle vehicle of the present invention, which is applied to a heavy-duty truck in which the trunnion type rear suspension 30 is utilized. This rear axle housing 60
The aforementioned rear axle housing 50 is constructed with at least one shim 61 additionally disposed between its wear plates 51,51 and its leaf spring brackets 12,12, and side·
The gaps G and G are finely adjusted so that they can be adjusted more appropriately.

That is, the rear axle housing 60 has a side gap G formed by the wear plates 51, 51 formed between the rear leaf springs 31, 31 and the leaf spring brackets 12, 12. , G, the at least one shim 61, 61 is disposed between the wear plate 51, 51 and the leaf spring bracket 12, 12, and the fixing bolts 52, 52 of the wear plate 51, 51 are attached to the wear plate 51, 51.
The heads 54, 54 are passed through the recessed holes 53, 53 of the plates 51, 51 to prevent the heads 54, 54 from slipping out of the recessed holes 53, 53, penetrate the leaf spring brackets 12, 12 and shims 61, 61, , The nut 5
The wear plate 51 tightened with 5, 55,
51 and the shims 61, 61 with their leaf springs
This is where the brackets 12, 12 are detachably and fixedly supported.

As will be apparent from the specific embodiments of the invention described above with reference to the drawings, those of ordinary skill in the art to which the invention pertains are subject of the invention. Is the nature of the invention (na
It is easily embodied in other embodiments that are derived from the true) and substance and that are objectively recognized as having them internalized. Of course, the contents of the present invention are indispensable for the establishment of the invention corresponding to the subject of the invention.

[0021]

Benefits of the Invention As can be seen from the above, the rear axle housing used in the rear axle of the present invention comprises:
A wear plate is placed in the side gap formed between the rear leaf spring and the leaf spring bracket, and a securing bolt is threaded through the leaf spring bracket and screwed onto the wear plate. The rear axle housing used in the rear axle of the present invention ensures that its side gaps are properly located because the wear plate is removably and fixedly supported on the leaf spring bracket by being combined. Moreover, it becomes easy to adjust, and the steering stability is improved with the rear two-axle, and as a result,
Then it is very useful and practical for two-axle vehicles.

[Brief description of drawings]

FIG. 1 is a rear axle used in a rear axle of the present invention, which is applied to a large truck in which a tandem axle trunnion type rear suspension is utilized.
It is the perspective view which showed the specific example of the housing.

FIG. 2 is a partially enlarged view of the rear axle housing shown in FIG. 1 with a partial cross section thereof.

FIG. 3 corresponds to FIG. 2 and is a tandem axle
FIG. 6 is a partially enlarged view showing a specific example of a rear axle housing used for a rear two-axle vehicle of the present invention applied to a heavy-duty truck in which a trunnion type rear suspension is used.

4 corresponds to FIG. 2 and is a tandem axle;
FIG. 6 is a partially enlarged view showing a specific example of a rear axle housing used for a rear two-axle vehicle of the present invention applied to a heavy-duty truck in which a trunnion type rear suspension is used.

5 corresponds to FIG. 2 and is a tandem axle;
FIG. 6 is a partially enlarged view showing a specific example of a rear axle housing used for a rear two-axle vehicle of the present invention applied to a heavy-duty truck in which a trunnion type rear suspension is used.

[Explanation of symbols]

 11 Spring Seat 12 Leaf Spring Bracket 15 Wear Plate 16 Fixing Bolt

Claims (4)

[Claims] 1. A wear plate is disposed in a side gap formed between a rear leaf spring and a leaf spring bracket, and a fixing bolt is passed through the leaf spring bracket, A rear axle housing for a rear two-axle that is screwed to a wear plate to removably and fixedly support the wear plate on its leaf spring bracket. 2. A wear plate is disposed in a side gap formed between the rear leaf spring and the leaf spring bracket, and at least one shim is attached to the wear plate and the leaf spring bracket. An intervening and locking bolt is threaded through its leaf spring bracket and shim and threadedly coupled to its wear plate to removably secure the wear plate and shim to its leaf spring bracket Rear axle housing used for rear two-axle vehicles that are supported mechanically. 3. A wear plate is disposed in a side gap formed between a rear leaf spring and a leaf spring bracket, and a securing bolt is threaded through a recess in the wear plate. After the head is retained in its recess, pierced by its leaf spring bracket, and tightened with a nut to removably and fixedly support its wear plate on its leaf spring bracket. Rear axle housing used for two-axle vehicles. 4. The wear plate is disposed in a side gap formed between the rear leaf spring and the leaf spring bracket, the at least one shim having the wear plate and the leaf spring bracket. And a fixing bolt is passed through the hole in the wear plate to prevent the head from slipping out of the hole, and the leaf spring
A rear axle used in a rear two-axle that penetrates the bracket and shim and is tightened with a nut to removably and fixedly support its wear plate and shim on its leaf spring bracket. housing.