Connection device
    1.
    发明授权

    公开(公告)号:US11168823B2

    公开(公告)日:2021-11-09

    申请号:US15971773

    申请日:2018-05-04

    发明人: Paul Attiwell

    摘要: A connection device for a core drilling assembly connectible between a head assembly of a core drilling assembly and an inner tube of the core drilling assembly. The connection device has a first connection portion and a second connection portion, and has a connection mechanism arranged to facilitate engagement of the first and second connection portions with each other and disengagement of the first and second connection portions from each other.

    Cylindrical Contact Polygon for Torque Transmission to a Driveshaft

    公开(公告)号:US20210131497A1

    公开(公告)日:2021-05-06

    申请号:US16769236

    申请日:2018-02-22

    发明人: Fraser A. WHEELER

    IPC分类号: F16D1/112 E21B17/04

    摘要: The disclosure generally relates to transmission of torque from a housing to a drive shaft. More specifically, the disclosure relates to configuration of contact surfaces between a housing and shaft to increase transmission of torque. Tools such as drilling tools often require torque to be transmitted from a rotating housing to a driveshaft. This is often accomplished through threaded connections or splines. A threaded connection can be effective for transmitting torque by allowing two pieces to be securely joined by rotating and tightening to a specified torque. A splined connection can also be effective for transmitting torque, providing sufficient clearance for one member to slidingly receive the other without rotating and torqueing. A tapered polygon is another effective way to transmit torque that by virtue of tapering can take up clearances between the torque carrying components. As such, the tapered polygon does not introduce significant stress concentrations into the components.

    Multiple-Rodrack Assembly for Motion Conversion Technology

    公开(公告)号:US20210018076A1

    公开(公告)日:2021-01-21

    申请号:US16980520

    申请日:2018-08-30

    申请人: CV Group, LLC

    发明人: Ronald C. VOEGELI

    摘要: A motion conversion apparatus (400, 500) comprises at least one set including a rodrack assembly (110) between two gearshaft member end sections (155), and a gearshaft member mid section (156) between the two gearshaft member end sections (155). The rodrack assembly (110) comprises a first gear connection member (120) and two guide members (140). The gearshaft member mid section (156) comprises a second gear connection member (160) configured to engage with the first gear connection member (120). The two gearshaft member end sections (155) each comprise a guiding surface arrangement (170) configured to contact the two guide members (140). The rodrack assembly (110) is configured to provide rotation of the gearshaft member mid section (156) about a rotational axis (A) by reciprocating linear motion of the rodrack assembly (110) along a first spatial dimension (D1) orthogonal to the rotational axis (A), or vice versa.

    Power assembly and aircraft
    4.
    发明授权

    公开(公告)号:US10759526B2

    公开(公告)日:2020-09-01

    申请号:US16193271

    申请日:2018-11-16

    摘要: The present invention provides a power assembly, including: a motor, a fixing base and a propeller. The fixing base is sleeved over a motor rotation shaft and is fastened to a base body of the motor, and the fixing base is provided with a first clamping portion. The propeller includes a base portion and a blade extending from the base portion, and the base portion is provided with a second clamping portion clamped to the first clamping portion. The propeller is detachably connected to the motor by engaging the first clamping portion with the second clamping portion, so that the propeller can be effectively prevented from loosening from the motor during the vibration or acceleration, and is easy to disassemble/assemble and carry.

    DRIVING APPARATUS AND IMAGE FORMING APPARATUS

    公开(公告)号:US20190250550A1

    公开(公告)日:2019-08-15

    申请号:US16268252

    申请日:2019-02-05

    发明人: Yusuke Niikawa

    IPC分类号: G03G15/00 F16H1/08 F16D1/112

    CPC分类号: G03G15/757 F16D1/112 F16H1/08

    摘要: A driving apparatus includes a drive output member configured to, when driving a member to be driven, receive a first force from the member to be driven in a direction in which the drive output member comes off a rotation shaft of a motor, and when driven by a drive transmission member, receive a second force from the drive transmission member in a direction opposite to that of the first force. The second force is equal to or greater than the first force.

    POWER ASSEMBLY AND AIRCRAFT
    6.
    发明申请

    公开(公告)号:US20190100301A1

    公开(公告)日:2019-04-04

    申请号:US16193271

    申请日:2018-11-16

    摘要: The present invention provides a power assembly, including: a motor, a fixing base and a propeller. The fixing base is sleeved over a motor rotation shaft and is fastened to a base body of the motor, and the fixing base is provided with a first clamping portion. The propeller includes a base portion and a blade extending from the base portion, and the base portion is provided with a second clamping portion clamped to the first clamping portion. The propeller is detachably connected to the motor by engaging the first clamping portion with the second clamping portion, so that the propeller can be effectively prevented from loosening from the motor during the vibration or acceleration, and is easy to disassemble/assemble and carry.

    Electrical food preparation device comprising a working tool that removably engages on a drive mechanism

    公开(公告)号:US10018227B2

    公开(公告)日:2018-07-10

    申请号:US14914702

    申请日:2014-08-21

    申请人: SEB S.A.

    摘要: An electrical food preparation device including a drive mechanism (3) rotated by a motor and a working tool (4, 5, 6, 7) including a bushing that removably engages on the drive mechanism, the drive mechanism including a section provided with at least one drive ramp that mates with a complementary drive ramp carried by said bushing in order to rotate said working tool, the drive ramp having an inclination designed such that the rotation of the drive mechanism in the direction of rotation of the motor generates a force on the bushing that tends to keep it engaged on the drive mechanism, the drive mechanism also including at least one retaining surface (33) that comes into contact with a stop carried by the working tool when the drive mechanism rotates in the reverse direction, the retaining surface and the stop having shapes that mate each other to prevent the bushing from rising back up along the drive mechanism when the motor stops suddenly, wherein the retaining surface is provided on a different part of the drive mechanism from the section supporting the drive ramp.

    Tool attachment for power-driven winding of winch straps

    公开(公告)号:US09915290B2

    公开(公告)日:2018-03-13

    申请号:US14671117

    申请日:2015-03-27

    摘要: An apparatus used for winding or unwinding winch straps includes a clevis, a first engagement plate, and a second engagement plate. Both the first engagement plate and the second engagement plate contain a lobe, a lug, an oblong body, and a plate pinhole which are rotatably connected to the clevis with a plate retaining pin which traverses through the plate pinhole. When in use, a power tool is attached to a tool-receiving slot, which is integrated into a structural body of the clevis. Next, the lobe of the first engagement plate and the second engagement plate establishes a connection with the spool hub the apparatus is being used on. Simultaneously, the lug of the first engagement plate and the second engagement plate are pressed against the spool hub. Therefore, the force is transferred from the power tool to the spool via the introduced apparatus.

    LOCKING MECHANISMS FOR TAIL ROTOR DRIVE DISCONNECT COUPLINGS

    公开(公告)号:US20180009524A1

    公开(公告)日:2018-01-11

    申请号:US15203615

    申请日:2016-07-06

    IPC分类号: B64C27/14 F16D1/112 B64C27/82

    摘要: A locking mechanism for a driveshaft disconnect coupling includes an input jaw member defining a rotation axis, an output jaw member connectable to the input jaw member for common rotation with the input jaw member, and a cartridge assembly. The cartridge assembly is fixed to the input jaw member, includes a pin, and defines a pin movement axis. The pin is movable along the pin axis between a radially inner position and a radially outer position, the pin being disengaged from the output jaw member in the radially inner position and the pin being engaged to the output jaw member in the radially outer position.