Overload clutch

Patent metadata

Field	Value
Publication number	US-11022188-B2
Application number	US-201916402529-A
Country	US
Kind code	B2
Filing date	May 3, 2019
Priority date	May 3, 2019
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

The disclosure relates to an overload clutch, comprising a cylindrical clutch housing having a housing body and a housing cover, and comprising two clutch elements arranged within the clutch housing, via which a drive movement is transmissible in an engaged state, wherein the clutch elements, for transmitting the drive movement in the engaged state, are engaged with each other in an interlocking and/or frictional manner and, can be brought out of engagement when an overload occurs. The housing body comprises a plurality of engagement elements, and the housing cover comprises a plurality of retaining structures corresponding to the engagement elements, wherein the engagement elements are able to be brought into engagement with the retaining structures by rotating the housing cover relative to the housing body.

First claim

What is claimed is:

1. An overload clutch, comprising:
a cylindrical clutch housing having a housing body and a housing cover, and comprising two clutch elements arranged within the clutch housing, via which a drive movement is transmissible in an engaged state, wherein the clutch elements, for transmitting the drive movement in the engaged state, are engaged with each other in an interlocking and/or frictional manner and, can be brought out of engagement when an overload occurs,
wherein the housing body comprises a plurality of engagement elements, which are arranged on an outer circumference of the housing body and face radially inwardly, and the housing cover comprises a plurality of retaining structures corresponding to the engagement elements, which are arranged on an outer circumference of the housing cover and face radially outwardly,
wherein the engagement elements are able to be brought into engagement with the retaining structures by rotating the housing cover relative to the housing body,
wherein the retaining structures each have a retaining edge extending in the circumferential direction of the housing cover, wherein, in an assembled state, each engagement element reaches behind a respective one of the retaining edges,
wherein the retaining structures each have two webs, which limit the retaining edges on both sides in the circumferential direction of the housing body, and
wherein a first web of each of the retaining structures has a smaller axial extension than a second web of the respective retaining structure.

2. The overload clutch according to claim 1 , wherein a distance between the webs at least essentially corresponds to a width of an engagement element.

3. The overload clutch according to claim 1 , wherein a distance between the retaining structures corresponds at least to a width of an engagement element.

4. The overload clutch according to claim 1 , further comprising at least one spring element, arranged within the clutch housing, which axially biases the clutch elements against each other.

5. The overload clutch according to claim 1 , wherein each of the clutch elements has claw configurations which engage each other in the engaged state and are formed in such a manner that they slide on one another in the case of an overload.

6. The overload clutch according to claim 1 wherein said overload clutch is positioned in a drive apparatus having a drive motor.

Assignees

• Prec Motors Deutsche Minebea Gmbh
• Tesla Inc
• Minebeamitsumi Tech Center Europe Gmbh

Inventors

• Nawabi Sasan
• Egberink Jan

Classifications

• F16D7/044 Primary

  the axially moving part being coaxial with the rotation, e.g. a gear with face teeth · CPC title

• H02P9/10

  Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load · CPC title

• F16D1/0823

  with radial clamping of a helical wrap spring on the shaft or in the hub bore (similar clutches F16D13/025, F16D13/08, F16D27/025, F16D27/105; similar slip couplings F16D7/022; similar free-wheel clutches F16D41/206) · CPC title

• F16D2001/103

  the torque is transmitted via splined connections · CPC title

• F16D43/2026 Primary

  with a plurality of axially moving parts · CPC title