Unlock instant, AI-driven research and patent intelligence for your innovation.

Hoist

一种卷扬机、卷扬的技术，应用在卷扬装置、发条的机构、载荷吊挂元件等方向，能够解决耗费时间、不能记录继电器和计数器保存运转次数、不能高精度地推测卷扬机寿命等问题，达到高精度寿命的效果

Inactive Publication Date: 2014-01-15
HITACHI IND EQUIP SYST CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing load gauge or the method of obtaining load information by measuring the elongation of the wire rope, it is necessary to use a special device that is not necessarily used in the hoisting device, which is a waste of cost
[0006] In the estimation of the life of each load, if the above-mentioned subjective method of the user is used, the life of the hoist cannot be estimated with high accuracy, or it is time-consuming to estimate the life.
[0007] In addition, according to the technology disclosed in Patent Document 2, it is not possible to use the recording relay and counter to save the number of times of operation of each type of load to estimate the life, nor can it use the number of times of operation to estimate the life of hoisting machines such as hoists with high accuracy. As a clear judgment value for estimating lifespan, it still takes time to estimate lifespan

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hoist
  • Hoist
  • Hoist

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Below, refer to Figure 1 to Figure 7 The best mode for carrying out the present invention will be described. first pass figure 1 , figure 2 The overall configuration and operation of the frequency conversion lifting device 1 will be described.

[0050] In the frequency conversion lifting device 1, in order to hoist and lower the load attached to the crane hook 2 in the Z, -Z direction by winding the wire rope 3, there is a hoist equipped with a hoist induction motor 4. device 5, and has a device 7 and a beam frame 8 equipped with a traversing induction motor 6 for moving the cargo in the X, -X direction, and a beam frame 8 for the traversing. In order to move the cargo in the Y, -Y direction, the A traveling device 10 equipped with a traveling induction motor 9 is combined with a moving beam 11 .

[0051] For the hoisting induction motor 4 and the traversing induction motor 6, the inverter device 12 for hoisting and traversing figure 2 The hoisting and traversin...

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

No PUM Login to View More

Abstract

The invention provides a hoist with a function of predicting the life of the hoist with high precision. The hoist has an induction motor, and the induction motor is used to perform the hoisting operation and the lowering operation for the installation of a wire rope with a crane hook. The hoist is characterized in that the hoist compirses a load information acquiring unit which is used to acquire the load information of a hoisting load applied on the induction motor and hoisted by the crane hook; a running time recording unit which records the running time of the load of each hoisting load; a life predicting unit which predicts the life according to the running time of the load of each hoisting load; and an output unit which outputs the running time of the load of each hoisting load and the predicted life.

Description

technical field [0001] The present invention relates to a hoist provided with a function of life estimation. Background technique [0002] As a method of estimating the lifetime of a hoisting machine such as a hoist, it is estimated using the total operating time and the mass of each suspended load being conveyed, that is, the operating time for each load. For the operation time, there is a method of measuring with a device such as a counter, and for the load, there is a method of obtaining load information by measuring the elongation of the wire rope. (For example, refer to Patent Document 1) [0003] Since the load changes during the transportation of goods by hoists such as hoists, when estimating the life of each load, the user may subjectively judge the operating time of each load and estimate the life of the hoist. [0004] In addition, as a method of storing the number of operations for each load to estimate the life, there is also a method of using a recording rela...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B66C13/46B66D1/00
Inventor 及川裕吾石川智
Owner HITACHI IND EQUIP SYST CO LTD