Vertical electrically driving device with brake and work machine
A brake and electric drive technology, applied in electromechanical devices, hydraulic brakes, control of mechanical energy, etc., can solve the problems of increased shear resistance of lubricating fluid, frictional resistance, and difficulty in realizing energy saving of hybrid excavators
Inactive Publication Date: 2007-05-16
KOBELCO CONSTR MASCH CO LTD
View PDF1 Cites 21 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In a horizontal multi-disk brake, for example, when the driving disc is not pushed towards the driven disc by releasing the brake, the rotating driving disc is naturally separated from the driven disc; however, when arranged vertically, the driving disc may Contact with driven disc due to gravity, creating frictional resistance
When a lubricating fluid is used, the frictional resistance is not too large even in the vertical state; however, the reduced thickness of the lubricating fluid increases the shear resistance and increases the energy loss
Therefore, it is difficult to achieve energy saving of hybrid excavators
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] A vertical electric drive device with a brake according to the present invention includes: a motor unit including a motor shaft extending in a vertical direction; a motor unit including a motor shaft extending in a vertical direction; The fixed part arranged on the rotating shaft, the actuating part that can move in the vertical direction and the brake unit of the friction part, the rotating shaft extends in the vertical direction and is drivingly connected with the motor shaft, and the friction part is arranged between the actuating part and the fixed part Between the parts and can rotate together with the rotating shaft and slide along the rotating shaft, the brake unit generates braking torque by moving the actuating part toward the fixed part so as to press the friction part through the actuating part and the fixed part, and the brake unit passes along the opposite direction to the fixed part The direction of moving the actuator releases the brake; and includes a dec...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A vertical electrically driving device with a brake and a work machine. The brake part (13) of the swing driving device (10) disposed around a vertically extending rotating shaft body (121) in a non-contact state comprises a vertically movable piston (133), a fixed plate (135) disposed on the lower side of the piston (133), and a friction plate (134) disposed between the piston (133) and the fixed plate (135), rotatable together with the rotating shaft body (121), and slidable along the rotating shaft body (121). When the piston (133) is moved downward by a brake part (13), the friction plate (134) is pressed against the fixed plate (135) by the piston (133) to generate a brake torque so as to move the piston (133) upward for releasing the brake. The brake part (13) also comprises a coiled spring (138) raising, when the brake is released, the friction plate (134) to a position between the piston (133) and the fixed plate (135) where the friction plate is not brought into contact with the piston (133) and the fixed plate (135).
Description
technical field [0001] The invention relates to an electric vertical drive with a brake and to a working machine. Background technique [0002] Recently, in consideration of energy saving, a working machine such as a hybrid excavator has been developed in which an electric motor is driven by electric power emitted from an engine-driven electric motor mounted on the working machine. Since a rotary drive device for a hybrid excavator is installed in a narrow space, it is preferable to make the device as simple and compact as possible. [0003] In the disc brake assembled in the vertical electric drive device as the drive source of the rotary drive device, the actuating member separated from the rotating member is arranged above the fixed member in such a state that between the actuating member and the fixed member A friction member is interposed therebetween so as to generate a braking torque by lowering the actuating member to press the friction member against the fixed memb...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/02E02F9/12F16D55/32
CPCY02E60/16
Inventor 吉松英昭田村和治
Owner KOBELCO CONSTR MASCH CO LTD