Hoist for elevator
A technology of traction machines and elevators, which is applied to elevators, hoisting devices, transportation and packaging in buildings, etc. It can solve troublesome problems such as rope pulley maintenance and inspection operations, and achieve the effect of easy maintenance and inspection operations
Inactive Publication Date: 2009-09-09
MITSUBISHI ELECTRIC CORP
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, in the case of such a traction machine for an elevator, when both the sheave and the braking device are to be maintained and inspected separately, maintenance and inspection must be performed from both sides. Between the wall of the car and the lifting car, for example, in the wall area opposite to the sheave, a space for maintenance and inspection protruding to the opposite side of the car must be provided.
[0005] In addition, if there is no such space, the wear amount of the groove of the sheave and the gap between the rope latch and the rope cannot be directly confirmed visually. After confirming the amount of wear mentioned above, and then using a dedicated feeler gauge to confirm the above gap, there is a troublesome sheave inspection work that must be performed using a dedicated mirror and a dedicated feeler gauge.
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 approach 1
[0019] figure 1 It is a configuration diagram showing a state in which the hoisting machine 3 according to Embodiment 1 of the present invention is installed in the hoistway 1 .
[0020] In this elevator, a hoisting machine 3 is fixed to a wall surface of a hoistway 1 via beams 2 . A rope 5 is wound around a sheave 4 of the traction machine 3 . One end portion of the rope 5 is connected to the car 7 via the car-side return sheave 6 . The other end of the rope 5 is connected with the counterweight 9 through the counterweight side reversing sheave 8 .
[0021] figure 2 yes means figure 1 The front view of the traction machine 3 in, image 3 yes figure 2 The traction machine 3 in is cut along the arrow direction cross-sectional view of A-A line.
[0022] In this hoisting machine 3, the opposing motor-side housing 11 and brake-side housing 12 are fixed to each other. A fixed shaft 10 is fixed to the centers of the motor side housing 11 and the brake side housing 12 . Th...
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
In the elevator hoisting machine of the present invention, the brake-side casing and the motor-side casing are fixed to the motor-side casing so as to face each other, and the motor is provided inside the motor-side casing. A sheave is rotatably provided on a fixed shaft that penetrates the brake-side housing and the motor-side housing and is fixed. One end portion of the pair of brake arms is rotatably provided on the brake side housing, and each brake arm is provided with a brake shoe that is in sliding contact with the braking surface of the brake wheel. In the brake-side housing, a brake spring is provided between the pair of brake arms, and the brake spring urges the pair of brake arms in a direction in which they are separated from each other. In the brake side housing, an electromagnet is provided between the other ends of the pair of brake arms, and the electromagnet attracts the other ends of the pair of brake arms against the elastic force of the brake spring to rotate the brake arms.
Description
technical field [0001] The present invention relates to a traction machine for an elevator, which is used to drive a rope to raise and lower a car. Background technique [0002] As a conventional hoisting machine for an elevator, there is known a hoisting machine in which a brake device including a brake arm and a brake shoe is arranged on the back side of a sheave (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Publication No. 2000-289954 [0004] However, in the case of such a traction machine for an elevator, when both the sheave and the braking device are to be maintained and inspected separately, maintenance and inspection must be performed from both sides. When between the wall of the car and the lifting car, for example, in the wall area facing the sheave, a space for maintenance and inspection protruding to the opposite side of the car must be provided. [0005] In addition, if there is no such space, the wear amount of the gr...
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 Patents(China)
IPC IPC(8): B66B11/08
CPCB66D5/08B66D5/30
Inventor 饭田康雅
Owner MITSUBISHI ELECTRIC CORP