GB2112499A - Drive shaft comprising two universal joints - Google Patents

Drive shaft comprising two universal joints Download PDF

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Publication number
GB2112499A
GB2112499A GB08225761A GB8225761A GB2112499A GB 2112499 A GB2112499 A GB 2112499A GB 08225761 A GB08225761 A GB 08225761A GB 8225761 A GB8225761 A GB 8225761A GB 2112499 A GB2112499 A GB 2112499A
Authority
GB
United Kingdom
Prior art keywords
shaft
drive shaft
joints
joint
yoke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08225761A
Other versions
GB2112499B (en
Inventor
Walter Bischoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gelenkwellenbau GmbH
Original Assignee
Gelenkwellenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2926710A external-priority patent/DE2926710C2/en
Application filed by Gelenkwellenbau GmbH filed Critical Gelenkwellenbau GmbH
Priority to GB08225761A priority Critical patent/GB2112499B/en
Publication of GB2112499A publication Critical patent/GB2112499A/en
Application granted granted Critical
Publication of GB2112499B publication Critical patent/GB2112499B/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
    • B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/30—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected in which the coupling is specially adapted to constant velocity-ratio
    • F16D3/32—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected in which the coupling is specially adapted to constant velocity-ratio by the provision of two intermediate members each having two relatively perpendicular trunnions or bearings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

In a drive shaft comprising two Hookes joints, the relation between those yokes which are nearest to the ends of the drive shaft is controlled by an internal shaft 13 which is supported within an intermediate shaft 1 from a first yoke of one of the joints to a first yoke of the other of the joints, and there is associated with each joint a respective elongate member 10 cooperating with shaft 13 and with the second yoke of the joint. <IMAGE>

Description

SPECIFICATION Drive shaft comprising two universal joints The invention relates to a drive shaft comprising one or more Hookes type universal joints, each joint comprising a pair of yokes, each yoke having bores in which trunnions of a cruciform member are supported either directly or through the intermediary of bearing members which may contain rolling or sliding bodies. Such a drive shaft will hereafter be referred to as a shaft of the kind specified.
A drive shaft of the kind specified disclosed in German Patent Specification No. 27 11177 includes a single Hookes joint and means to limit the angular deflection between the two yokes of the joint or the parts to which they are connected in order to assist in reassembling a drive shaft after disconnection from the roll of a rolling mill, for example.
Limitation of the angular deflection that can occur is advantageous in that it assists in the reconnection of the drive shaft of the roll. However a drive shaft which includes two or more universal joints connecting mutually inclined shaft parts, problems can still occur even when angular deflection at each joint is limited. The ease of reconnection is enhanced only when the joints are properly aligned during reassembly of the drive shaft.
It is an object of the present invention to provide an improved drive shaft of the kind specified which overcomes or ameliorates the above mentioned problems.
According to the present invention we provide a drive shaft of the kind specified comprising two universal joints connected by an intermediate shaft, wherein the controlling means comprises an internal shaft which is supported within the intermediate shaft from a first yoke of one of the joints to a first yoke of the other of the joints and there is associated with each said joint a respective elongate member which co-operates with the internal shaft and with the second yoke of the joint.
The internal shaft may be mounted in the interme diate shaft part by an annular member having a part-spherical outer surface co-operating with a cylindrical surface of the intermediate shaft part which provides angular movement. The annular member may be situated approximately midway between the ends of the internal shaft, or alternative ly may be situated nearer one end than the other.
The invention will now be described in more detail by way of example only with reference to the accompanying drawings wherein: Figure 1 is a view of a drive shaft according to the present invention and incorporating two universal joints; Figure 2 is a more detailed view of the arrange menu shown in Figure 1.
Figure 1 illustrates a drive shaft in which the intermediate shaft 1 carries universal joints 2 at either end. The two universal joints 2 each have a cruciform member 5 and an elongate member 10 which extends through a central bore 11 provided in the cruciform member.
The intermediate shaft 1 is provided with an internal shaft 13. The internal shaft 13 is supported in the bore 14 of the intermediate shaft 1. An annular member 15 is provided which has a cylindrical internal bore and a part-spherical external surface so that the internal shaft 13 may move in an axial direction relative to the intermediate shaft 1 and in addition can undergo angular movement relative to the longitudinal axis of the intermediate shaft 1.
As a result of the annular member 15 being mounted midway between the ends of the internal shaft 13, when a particular relative angle exists between two yokes of one of the joints, this will be the same as the angle existing between the two yokes of the other joint; however using the longitudinal axis of the intermediate shaft 1 as a datum, the longitudinal axis of each of the outer yokes will extend at an angle to said longitudinal axis of the intermediate shaft 1 but in opposite directions.
Figure 2 shows a drive shaft in principle as shown in Figure 1 but in more detail. The principle of the universal joints in this shaft are the same as the universal joints already explained with reference to Figure 3 and in a similar respect the cruciform members 5 are provided with central bores 11 to which the elongate member 10 extends and in which the elongate member 10 is axially and angularly movably supported. In the respective yokes 4 the two elongate members 10 are angularly movably supported by annular members having partspherical external surfaces.
In the embodiment shown in Figure 2 means for controlling the relative angle existing between the yokes of the joints is again provided by the intermedilate tube 13. On disconnection of the drive shaft from a roll, for example, the angular deflection of the yokes of one joint will be transmitted via the intermediate tube 13 to the other joint and thus the longitudinal axis of the two "outer" yokes 4 will subtend an angle relative to the intermediate shaft 1 that is identical in value but different in direction so that the axes of the outer yokes 4 are substantially parallel to each other.
The internal tube 13 is provided with a bore into which both of the elongate members 10 project and are angularly movably supported therein by means of an annular member 20 having a part-spherical external surface. The internal tube 13 is received in a bore 14 in the intermediate shaft 1 so that it is also angularly movable and axially slidable by means of the annular bearing member 15.
In the embodiment illustrated it is possible that a connecting wobbler for connecting the drive shaft of a roll is aligned parallel relative to the yoke of one of the universal joints in any position when the bearing 15 on the internal tube 13 is arranged symmetrically.
If such symmetry is not desirable positive or negative transmission can be introduced by means of an asymmetrically arranged bearing 15.
There may be provided means for locking the angle of one of the univeral joints of the shaft assembly, which holds the other joint of the assem bly with its yokes in the same relative angle.

Claims (1)

1. A drive shaft of the kind specified comprising two universal joints connected by an intermediate shaft, wherein the controlling means comprises an internal shaft which is supported within the intermediate shaft from a first yoke of one of the joints to a first yoke of the other of the joints and there is associated with each said joint a respective elongate member which co-operates with the internal shaft and with the second yoke of the joint.
2. A drive shaft according to Claim 1 wherein the internal shaft is supported from the intermediate shaft for angular movement relative thereto at a position spaced equally from the joints of the drive shaft.
3. A drive shaft according to Claim 1 wherein the internal shaft is supported from the intermediate shaft for angular movement relative thereto at a position spaced unequally from the two joints of the drive shaft.
4. A drive shaft according to Claim 2 or Claim 3 wherein said internal shaft is mounted within the intermediate shaft by an annular member having a part-spherical outer surface co-operating with an internal cylindrical surface of the intermediate shaft.
5. A drive shaft according to any of Claims 1 to 4 wherein said elongate member of each said joint extends through a bore in the cruciform member of the joint and is connected for angular movement relative to the second yoke of the joint.
6. A drive shaft substantially as hereinbefore described with reference to Figure 1 or Figure 2 of the accompanying drawings.
New claims or amendments to claims filed on 25/1/83 Superseded claims Claim 1 New or amended claims:
1. A drive shaft of the kind specified comprising two universal joints connected by an intermediate shaft and means for controlling the angular relationship between the outermost yokes of the joints, wherein the controlling means comprises an internal shaft which is supported within the intermediate shaft from the innermost yoke of one of the joints to the innermost yoke of the other of the joints and there is associated with each said joint a respective elongate member which co-operates with the internal shaft and with the outermost yoke of the joint.
GB08225761A 1979-07-03 1980-06-30 Drive shaft comprising two universal joints Expired GB2112499B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08225761A GB2112499B (en) 1979-07-03 1980-06-30 Drive shaft comprising two universal joints

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2926710A DE2926710C2 (en) 1979-07-03 1979-07-03 Universal joint
GB08225761A GB2112499B (en) 1979-07-03 1980-06-30 Drive shaft comprising two universal joints

Publications (2)

Publication Number Publication Date
GB2112499A true GB2112499A (en) 1983-07-20
GB2112499B GB2112499B (en) 1983-12-14

Family

ID=25779795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08225761A Expired GB2112499B (en) 1979-07-03 1980-06-30 Drive shaft comprising two universal joints

Country Status (1)

Country Link
GB (1) GB2112499B (en)

Also Published As

Publication number Publication date
GB2112499B (en) 1983-12-14

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920630