JPH0632402Y2 - Axle housing - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an axle housing used in a vehicle, and more particularly, to a half-divided axle housing which is pressed from a steel plate and is butt welded.

BACKGROUND OF THE INVENTION In vehicles, the axle housing used to support the axle on the leaf spring is
Welded caster shims on the mounting surface upwards to match the curved surface of the spring, in other words the tilt,
The lower mounting surface corresponding to the upper mounting surface has been machined into a scooping surface.

Therefore, the welding of the caster shim and the cutting of the counterbore surface are very troublesome in the work, and the manufacturing cost is very high.

Further, a half-divided axle housing for increasing bending strength is disclosed in Japanese Utility Model Publication No. Sho 56-124002, and protection of a U-shaped bolt for fastening the axle housing to a leaf spring is disclosed in Japanese Utility Model Publication No. Sho 58-97008. However, they do not consider anything that avoids the collapse of the axle housing and allows the U-bolt to tighten the axle housing to the leaf spring.

Purpose and problem of the invention The purpose and problem of this invention is to avoid crushing and to firmly tighten the leaf spring with U-shaped bolts.
Axle housing that simplifies the structure by eliminating spacers or caster shims that are welded to the mounting surface, and seat surfaces that are counterbored to the mounting surface, and that reduces manufacturing costs and improves mounting workability. Is provided.

SUMMARY OF THE INVENTION FOR OBJECTS AND PROBLEMS In accordance with the above objects and problems, the axle housing of the invention has upper and lower mounting surfaces that are partially inclined at a position where a leaf spring is mounted. And a halved axle housing body that is butt welded vertically with respect to the axis of the axle, bolt cover ribs on both sides, and a welding hole in the center, and the part is inclined. A pair of spring seat support plates for welding the opening edges of the welding holes to the front and rear surfaces of the axle housing body corresponding to the upper and lower mounting surfaces, and bolt holes at four corners, Attached to the upper and lower mounting surfaces of the axle housing body, and its bolt holes and a pair of spring seals. A pair of spring seats that are welded by being passed between the upper ends and the lower ends of the pair of spring seat support plates in a state where the bolt cover ribs of the support plate are aligned with each other; and The pair of spring seat support plates reinforce the half-axle housing body against tightening of the U-bolts to prevent it from collapsing, and the upper and lower mounting surfaces of the half-half axle housing.
By molding it into the housing body, tapered spacers, caster shims are eliminated, and spot facing is also eliminated.

DESCRIPTION OF SPECIFIC EXAMPLES Specific specified examples of the axle housing of the present invention will be described below with reference to the drawings.

1 to 3 partially show an embodiment 10 of an axle housing of the present invention applied to a rear axle (not shown) of a truck.

The axle housing 10 includes a half axle housing body 11 and a pair of spring seat supports that are welded to both ends of the axle housing body 11 at positions where leaf springs (not shown) are attached. .A pair of spring seats 13 and 13 which are passed between the plates 12 and 12 and their spring seat support plates 12 and 12 to be welded
Manufactured including and.

The half-axle housing main body 11 is press-formed from a thick steel plate symmetrically with respect to the axis of the rear axle in the up-down direction, and at that time, at a position where the leaf spring is attached, a partially inclined upper portion. And upper and lower axle housing body portions 14,15 forming lower mounting surfaces 17,18,
Upper and lower axle housing body portion 1
4, 15 are butted in the vertical direction with respect to the axis line of the rear axle and are seam-welded to be integrated. As such, axle bores 16 are formed in the integrated upper and lower axle housing body portions 14,15.

The upper and lower mounting surfaces 17 and 18 are inclined (θ) lowered toward the front of the track in accordance with the inclination of the leaf spring, and more specifically,
As shown in FIG. 2, it is pressed to a tilt (θ) set in a counterclockwise direction with respect to a plane (S) passing through the axis (O) of the axle.

Also, as such, when the upper and lower axle housing body portions 14, 15 are butted up and down and seam welded, the central portion has a differential bore associated with a propeller shaft (not shown). (Not shown) is arranged.

Its spring seat support plates 12,1
2 is welded to the front surface 19 and the rear surface 20 of the axle housing body 11 corresponding to the upper and lower mounting surfaces 17 and 18, and as can be understood from FIG. 3, it is pressed from a thick steel plate. The cross section is approximately U on both sides.
Bolt cover ribs 21 and 22 bent into a letter shape
In addition, a welding hole 23 is punched in the central portion. Of course, the vertical length of the spring seat support plates 12, 12 is sized to match the height of the axle housing body 11 between its upper and lower mounting surfaces 17, 18.

As such, the spring seat support plates 12,12 are pressed so that the front surface 19 of the axle housing body 11 corresponding to the partially beveled upper and lower mounting surfaces 17,18. And the plate surface of the central part is attached to the rear surface 20, and the bolt
The side edges of the cover ribs 21, 22 and the front surface 19 and the rear surface 20 of the axle housing body 11 thereof, and the front surface 19 and the rear surface 20 of the axle housing body 11 exposed to the welding holes 23 thereof and the welding thereof. The hole 23 is fixed to the axle housing body 11 by welding with the opening edge. Of course, its spring seat support plates 12, 12 which are so welded
, Its upper and lower ends are aligned with the upper and lower mounting surfaces 17, 18 of the axle housing body 11.

Its spring seat support plates 12,1
2 has a structure in which the bolt cover ribs 21 and 22 are provided on both sides and is welded to the axle housing main body 11, so that the axle housing main body 11 is reinforced against the tightening of the U-shaped bolt and is less likely to be crushed. . As a result, the axle housing body 11 can be firmly attached to the leaf spring.

The spring seats 13, 13 are attached to the partially inclined upper and lower mounting surfaces 17, 18 and the spring seat support plate 1
2 and 12 are welded by being passed between the upper end and the lower end, and punched out from a thick steel plate, in which four spring seat support plates 1 are provided at four corners.
The bolt holes 24 aligned with the 2, 12 bolt cover ribs 21, 22 are punched out, respectively.

The spring seats 13 and 13 are
Upper and lower mounting surfaces 17, 1 of the housing body 11
8 and attached to the pair of spring seat support plates 12, with the bolt holes 24 and the bolt cover ribs 21, 22 of the pair of spring seat support plates 12, 12 aligned.
Upper and lower tilted spring seat surfaces 25, 2 which are passed between the upper and lower ends of 12 and welded together to match the tilt of its leaf springs.
6 is provided.

Next, the case of assembling the axle housing 10 configured as described above to the leaf spring will be described. The upper inclined spring seat surface 25 of the spring seat 13 is butted against the lower surface of the leaf spring. It

Next, attach two U-bolts (not shown) to the springs so that they can straddle the leaf springs.
Bolt holes 24 in seats 13, 13 and bolt covers for spring seat support plates 12, 12.
The ribs 21 and 22 are penetrated, and a nut (not shown) is screwed to the U-shaped bolt with a washer (not shown) interposed therebetween and tightened.

In that way, the axle housing 10 is simply and firmly attached to the leaf spring.

In the above-mentioned axle housing 10, the half-axle housing body 11 has its upper and lower mounting surfaces 17, 18 lowered toward the front of the truck, but its upper and lower mounting surfaces 17, 18 have their leafs.・
It is lowered toward the rear of the track depending on the inclination of the spring.

As will be apparent from the identified embodiments of this invention as described below with reference to the drawings, those of ordinary skill in the art to which this invention belongs,
The subject matter of this invention is readily embodied in other aspects which are derived from the nature and substance of the invention and which are objectively admitted to incorporate them. Of course, the contents of this device are indispensable for the establishment of the device according to the subject of the device.

Benefits of the Invention As can be seen from the above, the axle housing of the present invention has upper and lower mounting surfaces that are partially angled in the position where the leaf springs are mounted,
And, it has a half axle housing body that is butt-welded vertically with respect to the axis of the axle, bolt cover ribs on both sides, and a welding hole in the center,
And a pair of spring seat support plates for welding the opening edges of the welding holes to the front and rear surfaces of the axle housing body corresponding to the partially inclined upper and lower mounting surfaces, and four corners. A bolt hole on the upper and lower mounting surfaces of the axle housing body, and the bolt hole and the bolt cover rib of the pair of spring seat support plates are aligned with each other. In the axle housing of the present invention, its half-split axle housing body is the spring seat support body including the pair of spring seats welded to each other. Reinforced by the seat support plate and crushed against the tightening of U-bolts And can be firmly attached to the leaf spring, and the upper and lower mounting surfaces can be molded into the half axle housing body so that the half axle housing body can be manufactured from steel plate. , Taper spacers and caster shims are omitted, and spot facing is also omitted, the number of parts is reduced, manufacturing is simplified, and the manufacturing cost is reduced. Workability is improved, and as a result, it is very useful and practical for vehicles.

[Brief description of drawings]

FIG. 1 is a partial front view of an axle housing of the present invention applied to a rear axle of a truck, and FIG. 2 is
FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, and FIG. 3 is a perspective view of a spring seat support plate used in the axle housing shown in FIG. 11 ...... Half-split axle housing body, 12, 12 ...
… Spring seat support plates, 13, 1
3 ... Spring seat.

Claims (1)

[Scope of utility model registration request] 1. A half axle housing body having upper and lower mounting surfaces that are partially inclined at a position where a leaf spring is mounted, and is butt welded vertically in relation to the axis of the axle, and on both sides. Bolt cover ribs having respective weld holes in the center, and opening edges of the weld holes on the front and rear surfaces of the axle housing body corresponding to the partially inclined upper and lower mounting surfaces, respectively. A pair of spring seat support plates to be welded and bolt holes at four corners attached to the upper and lower mounting surfaces of the axle housing body, and the bolt holes and the pair of spring seat plates. With the support plate bolt cover rib holes aligned, the pair of spring seats Axle housing containing a pair of spring sheet is passed between the upper end and between the lower end of the port plate is welded.