JPH0882327A - Propeller shaft oscillating torque adjuster - Google Patents

Abstract

PURPOSE: To facilitate the adjustment of oscillating torque by disposing a pair of temporary caps across bearing cases and each yoke, clamping a clamping piece by a yoke width setting bolt, screwed into the temporary cap, to set yoke width, and then measuring oscillating torque. CONSTITUTION: In the case of adjusting oscillating torque specially on the flange yoke 18 side between the bearing cases 24, 24' and spider 20 of a universal joint part, the inner clamping piece 38 of one temporary cap 30 of an adjuster body 32, and a temporary cap 30' are engaged into the engaging grooves of the respective bearing cases 24, 24', and the clamping piece 38 is clamped into the bearing case 24 by a yoke width setting bolt 34 so as to set yoke width. In this state, oscillating torque is measured, and if the oscillating torque is out of a specified range, the bolt 34 is loosened to remove the adjuster body 32, and then a thrust washer to obtain the specified oscillating torque is selected and built in the bearing cases 24, 24'.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a propeller shaft oscillating torque adjusting device, and more particularly, when a oscillating torque is out of a specified range, a thrust thrust washer between a bearing case and a spider end face can be replaced. The present invention relates to a propeller shaft swing torque adjusting device that can easily adjust swing torque.

[0002]

2. Description of the Related Art A universal joint portion of a propeller shaft straddles a yoke and a bearing case that engages with each shaft of a spider that freely connects a shaft yoke and a flange yoke of the propeller shaft through thrust washers. The bearing cap thus arranged is fixed to the yoke by a bearing cap bolt.

Since this universal joint must be assembled so that there is no rattling between the spider and the thrust washer, in this manufacturing line, the load when the spider and the thrust washer slide is changed by the swing torque. As a result, each propeller shaft series must be managed.

In the prior art, each shaft of the spider is covered with a bearing case via a thrust washer, a bearing cap is attached across the bearing case and each yoke, and the bearing cap bolt is fastened to the yoke. Therefore, if this swing torque is out of the specified range, remove the bearing cap bolt, bearing cap and bearing case, and use another thrust washer with a different thickness so that the swing torque falls within the specified range. Since it has to be replaced, the universal joint portion needs to be disassembled and reassembled, and there is a drawback that the efficiency of the swing torque adjustment work is low.

[0005]

The problem to be solved by the present invention is to replace the thrust washer when the swing torque is out of the specified range without assembling and disassembling the bearing cap bolt and the bearing cap. It is an object of the present invention to provide a propeller shaft swing torque adjusting device that can easily adjust the swing torque with high workability.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a bearing that engages with each shaft of a spider that freely connects a shaft yoke and a flange yoke of a propeller shaft via thrust washers. A device that adjusts the swinging torque between the bearing case and the spider of the universal joint part formed by fixing the bearing cap that straddles the case and each yoke to the corresponding yoke with bearing cap bolts. Before mounting the opposing bearing caps and bearing cap bolts, instead of these opposing bearing caps, a pair of temporary caps that are placed across the bearing case and each yoke are integrally connected and formed. And a fastening piece provided inside at least one of the temporary caps. It consists of the main body of the device and a yoke width setting bolt that is screwed to one of the temporary caps and tightens the tightening piece to the corresponding bearing case to set the yoke width.The setting is made with the tightening piece tightened by the yoke width setting bolt. An object of the present invention is to provide a propeller shaft rocking torque adjusting device, which measures rocking torque between a bearing case and a spider with a yoke width.

[0007]

As described above, before mounting the bearing caps and the bearing cap bolts, a pair of temporary caps of the adjusting device main body are arranged across the bearing case and each yoke in place of these bearing caps. After setting the yoke width to a specified value by tightening the tightening piece of the adjusting device body with the yoke width setting bolts screwed to at least one temporary cap, measure the swing torque between the bearing case and the spider. Then,
If this swing torque is out of the specified range, you can easily pull out the adjuster body from the bearing case simply by loosening the yoke width setting bolt, and then remove the bearing case to make the thrust washer easy. Can be exchanged. Therefore, it is not necessary to disassemble or reassemble the bearing cap bolt and the bearing cap, and the swing torque can be adjusted with high workability.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a universal joint of a propeller shaft 12 whose swing torque is to be adjusted by a propeller shaft swing torque adjusting device 10 according to the present invention. The universal joint portion 14 includes a shaft yoke 16 and a flange yoke 18 of the propeller shaft 12.
Each axis 20A to 20 of the spider 20 that freely connects
Bearing caps 26, 26 'disposed across the bearing cases 24, 24' that engage with D via thrust washers 22 and each yoke 16 or 18 are attached to the yoke 16 by bearing cap bolts 28, 28 '. Alternatively, it is fixedly formed at 18. Further, as shown in FIG. 2, the bearing cases 24, 24 'have cap engaging grooves 24a, 24'a into which the bearing caps 26, 26' corresponding to the outer surfaces thereof are respectively engaged.

As shown in FIGS. 3 and 4, the propeller shaft rocking torque adjusting device 10 of the present invention has bearing caps 26, 2 facing the universal joint 14.
6'and bearing cap bolts 28, 28 'before mounting these opposing bearing caps 26,
In place of 26 ', a pair of temporary caps 30, 30' arranged across the cap engagement grooves 24a, 24'a of the bearing cases 24, 24 'and each yoke 16 or 18 are integrally connected. The adjusting device main body 32 is formed in a substantially U shape.

The adjusting device main body 32 has one temporary cap of the pair of temporary caps 30 and 30 ', and in the illustrated embodiment, a tightening piece 38 elastically attached to the inside of the temporary cap 30. Further, there is a yoke width setting bolt 34 screwed to the one temporary cap 30, and the yoke width setting bolt 34 has a function of tightening a tightening piece 38 to a corresponding bearing case 24 to set the yoke width. As shown in FIG. 2, the universal joint part 14 keeps the bearing case 24 while measuring the swing torque.
It is fixed at a predetermined position by the flange yoke 18 (or the shaft yoke 16) that grips the opposing bearing case 24 in the state of covering. Incidentally, reference numeral 36 in FIG.
Is a handle of the adjusting device main body 32.

The usage state of the propeller shaft rocking torque adjusting device 10 of the present invention will be described with reference to FIGS. 3 and 4. In FIGS. 3 and 4, when the rocking torque on the flange yoke 18 side is adjusted. Is shown. The shafts 20A and 20B of the spider 20 of the universal joint part 14 are fitted with the facing parts of the flange yoke 18, respectively, and then the shafts 20A and 20B of the spider 20 are respectively fitted with the bearing cases 24 via the thrust washers 22. Put on 24 '.

Next, as shown in FIGS. 3 and 4, with the yoke width setting bolt 34 retracted, the adjusting device main body 32 is shown.
The bearing case 24 in which the one tightening piece 38 of the temporary cap 30 and the other temporary cap 30 'face each other,
The adjusting device main body 32 is attached by the handle 36 so as to be engaged with the cap engaging grooves 24a and 24'a of 24 ', and
As shown in FIG. 7, the yoke width is set by tightening the tightening piece 38 into the cap groove 24a of the bearing case 24 with the yoke width setting bolt 34. In this state, the rocking torque is measured, and this rocking torque T is as shown in FIG.
It is measured by hooking the hook 42 of the spring measure 40 into the hole of the flange yoke 18 and pulling until the spider 20 begins to move. This swing torque T is measured by the spring 4
It is represented by the product of the tensile load P of 0 and the distance L between the rotation center of the spider shaft 20A and the hooked portion of the spring measure 40.

If the swing torque T is within the specified range, the yoke width setting bolt 34 is loosened to remove the adjusting device main body 32, and the bearing caps 26 and 26 'of the universal joint portion 14 are attached to the flange yoke 18. And the cap engaging groove 24a of the bearing case 24, 24 ',
24'a, the bearing case 24,
The two bearing cap bolts 28, 28 'are fastened to the flange yoke 18 so as to sandwich 24', and the attachment of the spider 20 on the flange yoke 18 side is completed.

If the swing torque T is out of the specified range, the yoke width setting bolt 34 is similarly loosened to remove the adjusting device main body 32, and then the bearing case 2 is removed.
4, 24 'are removed, the thrust washer 22 is replaced with another thrust washer 22 that allows the specified swing torque, the adjusting device body 32 is attached again, and the yoke width setting bolt 34 is set to a predetermined yoke width. Tighten as
Re-measure swing torque. If the swinging torque is within the specified range, the attachment of the spider 20 on the flange yoke 18 side is completed in the same manner as described above. If the re-measured swing torque T is not within the specified range, the same operation is repeated until the measured value falls within the specified range.

Next, the universal joint portion 14 assembled to the flange yoke 18 is attached to the shaft yoke 16.
Attach to. That is, as shown in FIG. 1, holes 16C for passing through the bearing cases above and below the shaft yoke 16 are provided.
After the shafts 20C and 20D of the spider 20 facing each other are inserted into the 6D, the thrust washer 22 is applied to the spider shaft, and the upper and lower bearing cases 24 and 24 'are inserted into the bearing case through holes 16C and 16D.
The adjusting device 10 of the present invention can be mounted in the same manner as described in connection with FIG. 8 to measure and adjust the rocking torque between the thrust washer 22 in the bearing case 24 and the shaft of the spider 20. it can.

In the above embodiment, the tightening piece 38 is provided only inside the one temporary cap 30 of the pair of temporary caps 30 and 30 'facing each other, and the yoke setting bolt 34 is attached to the temporary cap 30. , Both temporary caps 30, 3
A tightening piece and its tightening yoke setting bolt may be provided corresponding to 0 '.

[0017]

According to the present invention, as described above, before mounting the bearing caps and the bearing cap bolts that face each other in the universal joint, the bearing case and each yoke are straddled instead of these bearing caps. After that, a pair of temporary caps of the main body of the adjusting device are arranged, and the yoke width is set by tightening the tightening pieces to the bearing case with the yoke width setting bolts screwed to one of the temporary caps. Since the rocking torque between the two is measured, if this rocking torque is out of the specified range, the adjustment device body can be easily pulled out from the bearing case simply by loosening the yoke width setting bolt. The thrust washer can be easily replaced simply by removing the bearing case. Therefore, there is no need to disassemble or reassemble the bearing cap bolt and bearing cap,
The swing torque can be adjusted quickly and with high workability.

[Brief description of drawings]

FIG. 1 is a side view showing a cross section of one half of a universal joint portion of a propeller shaft whose swing torque is to be adjusted by a propeller shaft swing torque adjusting device according to the present invention.

FIG. 2 is an end view of a bearing case.

FIG. 3 is a perspective view of the propeller shaft swinging torque adjusting device according to the present invention before adjusting the swinging torque on the flange yoke side before mounting the device body.

FIG. 4 is a front view of the mounted state of the apparatus main body when the swing torque on the flange yoke side is adjusted by the propeller shaft swing torque adjusting apparatus according to the present invention.

5 is an enlarged cross-sectional view of a main part of the apparatus body of FIG. 4 in a mounted state.

FIG. 6 is a schematic side view of a swing torque measurement state.

[Explanation of symbols]

 10 Propeller shaft swing torque adjusting device 12 Propeller shaft 14 Universal joint part 16 Shaft yoke 18 Flange yoke 20 Spider 20A Spider shaft 20B Spider shaft 20C Spider shaft 20D Spider shaft 22 Thrust washer 24 Bearing case 24 'Bearing case 24a Cap engaging groove 24'a Cap engaging groove 26 Bearing cap 26 'Bearing cap 28 Bearing cap bolt 28' Bearing cap bolt 30 Temporary cap 30 'Temporary cap 32 Adjustment device body 34 Yoke width setting bolt 36 Grip 38 Tightening piece

Claims (1)

[Claims] 1. A bearing cap disposed across the yoke and a bearing case that engages with each shaft of a spider that freely connects a shaft yoke and a flange yoke of a propeller shaft via thrust washers. A device for adjusting rocking torque between the bearing case and a spider of a universal joint part fixedly formed to a corresponding yoke by a bearing cap bolt, which is provided before mounting the opposing bearing cap and bearing cap bolt. Instead of the opposing bearing caps, a tightening piece provided inside at least one of the temporary caps, which is formed by integrally connecting a pair of temporary caps arranged across the bearing case and each yoke, is formed. The main body of the adjustment device and the one temporary cap And a yoke width setting bolt for tightening the tightening piece to a corresponding bearing case to set a yoke width, and the bearing case and the spider with the yoke width set by the tightening piece tightened by the yoke width setting bolt. A rocking torque adjusting device for a propeller shaft, characterized by measuring rocking torque between and.