Invention Grant
- Patent Title: Relating to a secondary drive unit
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Application No.: US15118659Application Date: 2015-01-29
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Publication No.: US10295020B2Publication Date: 2019-05-21
- Inventor: Alister Rayner
- Applicant: AUGER TORQUE EUROPE LIMITED
- Applicant Address: GB Gloucestershire
- Assignee: AUGER TORQUE EUROPE LIMITED
- Current Assignee: AUGER TORQUE EUROPE LIMITED
- Current Assignee Address: GB Gloucestershire
- Agency: Davis & Bujold PLLC
- Agent Michael Bujold
- Priority: GB1402515.9 20140213
- International Application: PCT/GB2015/050208 WO 20150129
- International Announcement: WO2015/121615 WO 20150820
- Main IPC: F16H1/28
- IPC: F16H1/28 ; F16H1/16 ; F16H57/04 ; E21B3/02 ; E21B7/02 ; E21B17/03 ; F16H57/08 ; F16H1/46

Abstract:
A secondary drive unit (10) for demountable attachment to a machine having a primary drive unit and power take-off, the secondary drive unit (10) comprises a housing (12), a drivable input element (16) drivable by the machine at one end of the housing (12), a driven output element (18) at the other end of the housing (12) for driving a tool and/or another machine, and at least one rotatable gear carrier (44) in the housing (12) drivable by the drivable input element (16). An interior surface of the housing (12) includes a radially-inwardly projecting gear-carrier stop (58) overlapping the gear carrier (44). A low-friction rubbing element (62) is interposed between the gear-carrier stop (58) and the gear carrier (44) to prevent or limit gear-carrier lift. This prevents or limits undue lateral strain along a central rotational axis of the drive unit (10), and thus a possibility of internal shearing.
Public/Granted literature
- US20170074355A1 IMPROVEMENTS IN OR RELATING TO A SECONDARY DRIVE UNIT Public/Granted day:2017-03-16
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