WO2008116441A1 - Axial securing device - Google Patents

Axial securing device Download PDF

Info

Publication number
WO2008116441A1
WO2008116441A1 PCT/DE2008/000446 DE2008000446W WO2008116441A1 WO 2008116441 A1 WO2008116441 A1 WO 2008116441A1 DE 2008000446 W DE2008000446 W DE 2008000446W WO 2008116441 A1 WO2008116441 A1 WO 2008116441A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping element
clamping
axial
thread
element
Prior art date
Application number
PCT/DE2008/000446
Other languages
German (de)
French (fr)
Inventor
Tobias Hüttner
Tim LÖSCHER
Original Assignee
Schaeffler Kg
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 to DE102007014026.8 priority Critical
Priority to DE200710014026 priority patent/DE102007014026A1/en
Application filed by Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2008116441A1 publication Critical patent/WO2008116441A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/36Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt with conical locking parts, which may be split, including use of separate rings co-operating therewith

Abstract

The invention relates to an axial securing device comprising a clamping element (1) with a thread (6) and a tensioning element (20). In order to compensate for manufacturing inaccuracies in a wide range using simple means, and to provide a reliable fixed seat on the assembly partner, the tensioning element (20) is designed as a tensioning ring, which can be moved in the axial direction (A) relative to the clamping element (1), the ring converting the axial movement thereof via at least one action zone (26) acting upon the clamping element (1) into a change of the thread radius (29).

Description

Title of invention

axial securing

description

Field of the Invention

The invention relates to an axial securing with a radialfe- horror formed clamping element with a thread and with a clamping element that changes the thread radius during assembly for bracing the clamping element.

For axial fixing of rotatable or momentenbeaufschlagten components on axles, shafts or the like, often referred to as safety elements or clamping nuts one-piece or multi-piece Axialsicherungseinrichtungen be used.

A known (DE 39 17758 A1) integral lockable clamping nut causes a strain on a shaft characterized in that each resilient clamping jaws are formed by two opposite radial slots which are axially drawn toward each other in the assembled state. Characterized the thread flanks of the clamping nut to wedge with the corresponding external thread on the shaft. From the German Offenlegungsschrift DT 2720 548 A1 an axial securing in the form of a nut body with a radial slot is known, which can be varied to produce a uniform deformation of the mother longitudinal bore by means of a keying means.

The German Offenlegungsschrift DT 26 09 186 A1 discloses a lock nut having a plurality of axially extending slots between the nut faces which can be spread by used wedge members for clamping the nut.

DE 697 00 671 T2 discloses a one-piece lock nut, which is formed axially resilient manner by a plurality of radial slots. Jackbolts axial effect against the axial suspension a fixed clamping axial approach of various internal threaded portions.

The aforementioned security elements are relatively expensive in their manufacture and / or assembly and require very close tolerances manufactured radii corresponding threads of the clamping element and the corresponding component (e.g., axle or shaft).

An axial securing of the type mentioned is shown in the DE 101 62 910 A1 and is formed as a radially resilient clamping gap nut having formed around its longitudinal axis internal thread. A two gap ends limited radial gap gives the clamping gap nut radial mechanical spring properties.

The tangential gap width is variable with at least one, the gap ends connecting clamping element. Following the provisional assembly of the clamping gap nut a narrowing of the parent temkörpers is effected by the tensioning element, whereby the internal thread of locking braced with the corresponding component external thread. This axial securing is comparatively complicated constructed because the clamping element must act on the clamping nut by means of corresponding threads and / or lever mechanisms. In addition, this design implies an imbalance that particular negative effect for applications in high-speed machines.

Against this background, it is an object of the invention to provide an axial securing balancing with simple means in a wide range of manufacturing inaccuracies and thereby ensures a reliable interference fit on the mounting partner.

This object is achieved by an axial securing comprising the features of claim 1.

Under clamping element is in the context of the present invention generally comprises a device - generally referred to as clamping nut - to understand with an axial bore and an inner and outer surface, wherein the respective threads on the inner and / or outer lateral surface, so as interior and / or external thread may be formed.

According to the invention, the clamping element is a clamping ring which is movable relative to the clamping element in the axial direction. The collet can optimized depending on the application situation, geometric shape and annular cross-section have, with its properties is essential in view of the present invention the shaft to act on the clamp member with a radially acting force that is generated by its relative axial movement to the clamping element. In this case the clamping ring acts via suitably designed active surfaces or zones of action on the clamping member and so continues its axial movement into a change in the thread radius of the clamping member. A first advantage of the invention is that, with the axial securing manufacturing tolerances both of the components, in particular of the thread, the axial securing itself and the assembly partners (for example, the external thread an axle or shaft) can be compensated in a very wide range. Another advantage of the invention is that the fuse element can be configured largely free of unbalance or mounted on the respective component.

Moreover fuse element of the invention of very simple manufacturing and adjustable to handle individual parts is established.

According to an advantageous development of the invention the force acting on the clamping nut active zone is formed by a conical surface which cooperates with a correspondingly shaped effective surface of the clamping nut. By so cooperating oblique active surfaces sufficient, the thread radius changing radial force component is exerted on the clamping element reliable.

More preferably, the clamping element may be alverschraubungen with the clamp via AXI connected. These are preferably equidistant or to compensate any unbalances the axial securing distributed over the circumference.

The axial screw can preferably be made from commercially available ben screw penetrating the clamping element by means of corresponding axial holes, and are screwed to corresponding mating threads in the clamping member. During the screwing so that the axial screw pull the clamping element to the clamping element axially as far as out to the desired tension and rotation is reached. is also advantageous in this configuration is that the clamping element as needed - for example, for assembly purposes - can easily be re-dissolved, releasing the clamping element also. A preliminary tests schraubung of clamping element and clamping element allows Axialsiche- insurance facility to handle as a preassembled module and assemble.

Manufacturing technology, particularly preferably the radialfedernde training of the clamping element is implemented by a radial separation gap in the material of the clamping element.

Further advantages and aspects of the invention can also or in addition from the following description of the invention with reference to the drawings.

in which:

Figure 1 is an axial securing of the invention in view

axial direction and

2 shows a longitudinal section along the line II-II through the axial securing of FIG. 1

The axial securing shown in Figure 1 as Klemmele- element 1 comprises a clamping nut 2 with an axial bore. 3

Unless defined otherwise hereinafter, the orientation refer rungs- or directional terms axial, radial and tangential to the screw axis and the longitudinal axis A of the bore 2. In the clamping element 1 (clamping nut 2) is generally a disk-shaped or annular member having an outer to understand envelope surface 4 and the bore 3 defining inner circumferential surface. 5 In the embodiment, the bore 3 and the inner circumferential surface 5 of an internal thread 6 onto which a corresponding -, can be screwed axially cooperating external thread of a component, for example a shaft - not shown here. Without departing from the principle of the present invention, the envelope surface 4 may have at its periphery a male thread.

In the axial direction A a plurality of axial through-holes 8 are distributed equidistantly over the circumference. 7 The holes 8 are provided with internal threads. 9 The clamping nut 2 is slit to the outside to form a radial gap separating 10th The separation gap 10 is variable depending on the external dimension of the (not shown) corresponding shaft thread in its width 12th The clamping nut 2 is configured in the manner of a spring ring and elastic 'auffederbar 14 or under Vermindung of the radius under magnification of the threaded radius zusammenfederbar fourteenth

As a clamping element in the form of a clamping ring 20 is provided in the longitudinal sectional view with axially separated individual components of Figure 2 can be seen. The clamping ring has the holes distributed over its circumference 21 corresponding to the equidistant arrangement 8 arranged through-holes 22, the screw in each case of an axial connection are penetrated 23rd

After assembly of the clamping nut 2 on the associated (not shown) external thread whose inner thread 6 is initially in temporary engagement with the male thread. Subsequently, the screws 23 are inserted into the corresponding holes 8 or screwed threads 9, whereby the tensioning element 20 to move in the axial direction A to the right on the clamping nut. 2 In this case, an effective area or active area 26 formed by a cone 25 slides on a corresponding active surface 28 of the clamping nut 2. The more the clamping ring moves to the right, the greater the clamping nut 2 in the radial direction R with reduction of the gap width 12 and the thread radius 29 pressed together. Characterized the thread 6 comes into tight pressure engagement with the corresponding external thread, so that finally such a high static friction and tension results in that the clamping nut 2 captive and well secured firmly seated on the external thread. The active zone 26 and the corresponding operative surface 28 is formed preferably excluded over the entire circumference, but may be provided only in the peripheral portions.

This allows manufacturing tolerances that might otherwise lead to mounting problems especially if the external thread of the shaft lies in its radial dimension in the upper tolerance range or above and the female thread in the lower range of tolerance or less, simple and be compensated to a large extent.

Accordingly, however, the axial securing of the invention can balance executed in undersized outer thread of a corresponding component.

In a corresponding configuration, it is also possible by simple reversal of the conical surfaces, spread open a then provided with an external thread on the sleeve 4 clamping nut 2 in the radial direction R, and thus a firm clamping of the external thread of the axial securing in a corresponding (not shown) internal thread, for example a to cause bearing bore. LIST OF REFERENCE NUMBERS

1 clamping element

2 clamping nut

3 hole

4 outer surface

5 inner lateral surface

6 internal thread

7 scope

8 through holes

9 female thread

10 separating gap

12 width

14 thread radius

20 tension ring

21 scope

22 through bore

23 connecting screw

25 cone

26 effective zone

28 active surface

29 thread radius

A axial direction

R radial direction

Claims

claims
1. axial securing with a radialfedemd formed clamping element (1) with a thread (6) and with a clamping element (20) which changes in the assembly for clamping the Klemmele- ments (1) the thread radius (29), characterized in that
- the clamping element (20) is in the axial direction (A) relative to the clamping element (1) movable clamping ring that its axial movement via at least one on the clamping element (1) acting active zone (26) 'in a change in the thread radius (29) implements.
2. axial securing according to claim 1, characterized in that
- the active zone (26) is formed by a conical surface with a correspondingly shaped effective surface (28) of the clamping element
(1) cooperates.
3. axial securing according to claim 1 or 2, characterized in that - the clamping element (20) with the clamping element (1) via axial-flow screw connections (23).
4. axial securing according to claim 1, 2 or 3, characterized, in that
- the radialfedernde training of the clamping member (1) by a radial separating gap (10) in the material of the clamping element (1) is realized.
PCT/DE2008/000446 2007-03-23 2008-03-14 Axial securing device WO2008116441A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102007014026.8 2007-03-23
DE200710014026 DE102007014026A1 (en) 2007-03-23 2007-03-23 axial securing

Publications (1)

Publication Number Publication Date
WO2008116441A1 true WO2008116441A1 (en) 2008-10-02

Family

ID=39624334

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2008/000446 WO2008116441A1 (en) 2007-03-23 2008-03-14 Axial securing device

Country Status (2)

Country Link
DE (1) DE102007014026A1 (en)
WO (1) WO2008116441A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009032814A1 (en) 2009-07-08 2011-01-13 Newfrey Llc, Newark Axial safety system has clamping element equipped with radially elastic clamping portion, where radial recess is formed either in tensioning element or in clamping element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519958A (en) * 1947-11-21 1950-08-22 Dodge Mfg Corp Wheel mounting
DE8702114U1 (en) * 1987-02-12 1987-04-02 Ringfeder Gmbh, 4150 Krefeld, De
DE8702116U1 (en) * 1987-02-12 1987-04-09 Ringfeder Gmbh, 4150 Krefeld, De

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2609186A1 (en) 1975-03-11 1976-09-23 Ralph Otto Keen safety nut
US4086946A (en) 1976-05-07 1978-05-02 Taper Line, Incorporated Locking nut
CA1313067C (en) 1988-06-02 1993-01-26 Robert E. Geiger Lockable nut for axial adjustment
US5662445A (en) 1996-03-06 1997-09-02 The Timken Company Locking nut
DE10162910B4 (en) 2001-05-13 2004-01-29 Wilhelm Landwehr Clamping gap nut

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519958A (en) * 1947-11-21 1950-08-22 Dodge Mfg Corp Wheel mounting
DE8702114U1 (en) * 1987-02-12 1987-04-02 Ringfeder Gmbh, 4150 Krefeld, De
DE8702116U1 (en) * 1987-02-12 1987-04-09 Ringfeder Gmbh, 4150 Krefeld, De

Also Published As

Publication number Publication date
DE102007014026A1 (en) 2008-09-25

Similar Documents

Publication Publication Date Title
US3469897A (en) Lock plate for fixed motor rotor bearing
EP0370212B1 (en) Nut with a pressure ring
US4012154A (en) Threadless locking device
US5997104A (en) Device for rotatably supporting a hub of a bicycle wheel
US4268185A (en) Mounting attachment
EP1288513B1 (en) System and method for mounting a shaft within a hollow member
CA1041886A (en) Self-sealing, self-locking threaded fastener
US5174680A (en) Fastening apparatus for a shaft and a wheel or wheel-like body
US5597242A (en) Bicycle hub with bearing preload adjuster
US5324235A (en) Cardan-type universal joint
US4824281A (en) Device for connecting a wheel-like body to a shaft
EP1871621A2 (en) Wheel bearing joint unit
US20030106384A1 (en) Bearing assembly for axle shaft pinion and final reduction gear for vehicle
US8292373B2 (en) Spindle nut
GB2329685A (en) Threaded pipe connection
US20130119619A1 (en) Tool holder
US6413164B1 (en) Torsionally rigid, play-free, flexible metal bellows-type coupling for the torque-transmissive connection of two shafts
US8777802B2 (en) Gear system and method for using same
CN1250868C (en) Device for centering tube in turbine shaft
US5209594A (en) Arrangement for locking a shaft to a machine member
US7186030B2 (en) Expandable shaft assembly
JP2004521287A (en) Completely complementary tapered roller bearings
JPH07332381A (en) Frictional tightening tool between shaft and rotary body
EP2057380A1 (en) A locking system and fastening elements
US20100202823A1 (en) Clamping arrangement and ejector and conical ring for the same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08734385

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct app. not ent. europ. phase

Ref document number: 08734385

Country of ref document: EP

Kind code of ref document: A1