Roundness Measuring Device for Hydraulic Turbine Runner Maintenance
A technology of roundness measurement and water turbine, which is applied in the direction of measuring devices, instruments, etc., can solve the problems of high difficulty in detection technology and complex shape of the runner surface
Active Publication Date: 2015-12-02
黄河机械有限责任公司
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to overcome the shortcomings of the existing inspection and measurement technology, and provide a roundness measuring device for the inspection and repair of hydraulic turbine runners, which has a compact and stable structure, high measurement accuracy, convenient on-site operation, high cost performance, and a wide range of applications. Problems such as complex surface shape and high difficulty in detection technology
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
[0020] Depend on Figure 1-Figure 5 The shown roundness measuring device for the maintenance of a hydraulic turbine runner includes a fixed installation shaft 13, a rotating support shaft 12 and a measuring rotating shaft 18 which are all vertically arranged, and the fixed installing shaft 13, the rotating supporting shaft 12 and the measuring rotating shaft 18 All three are hollow shafts, the rotating bracket shaft 12 is sleeved on the outer ring of the fixed installation shaft 13, and the measurement rotation shaft 18 is sleeved in the fixed installation shaft 13, that is, the rotation bracket shaft 12, the fixed installation shaft 13 and the measurement rotation shaft 18 Set up sequentially from outside to inside. The present invention also includes a cover plate 21 with a central hole. The cover plate 21 covers the top port of the fixed installation shaft 13, the rotating support shaft 12 and the measuring rotating shaft 18. The cover plate 21 and the measuring rotating sh...
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
The invention discloses a roundness measurement device for turbine runner examination and repair. The roundness measurement device comprises a vertical fixed mounting shaft and a vertical rotary support shaft, wherein the fixed mounting shaft and the rotary support shaft are hollow shafts, the rotary support shaft is sleeved on the outer circle of the fixed mounting shaft, a bearing is arranged between the rotary support shaft and the fixed mounting shaft, and a workbench used for mounting and fixing a water turbine is arranged at the bottom end of the fixed mounting shaft. Two supports are symmetrically mounted on two sides of the rotary support shaft, each support is provided with a measuring plate which is located on the lower side of the workbench, the two measuring plates of the two supports are symmetrically arranged on two sides of the rotary support shaft, each measuring plate is provided with an arc notch, the arc notches are matched with runners of the water turbine in shape, and the notches in the two measuring plates of the two supports are oppositely arranged. The roundness measurement device for turbine runner examination and repair is compact and stable in structure, high in measuring precision, convenient to operate on the spot, high in performance cost ratio, and wide in application range, and the problems that a runner molded surface is complex in shape and high in detecting technology difficulty.
Description
technical field [0001] The invention relates to a roundness measuring device for checking and repairing a runner of a water turbine, and belongs to the technical field of electromechanical integration detection. Background technique [0002] When the water turbine is running at high speed, it has been subjected to sand erosion and cavitation erosion for a long time. The metal surface of the runner will be plastically deformed and hardened, followed by cracks and peeling, and the metal surface will form honeycomb holes, resulting in increasing water leakage. The use efficiency and service life of water turbines are constantly decreasing, and water energy cannot be fully utilized, which seriously threatens the safe operation of the power grid. Therefore, it is necessary to carry out on-site inspection and repair of the runner on a regular basis. Many methods have been used for the detection of the runner at home and abroad, such as the comb method, laser interferometer method,...
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): G01B21/20
Inventor 郝用兴杨杰邰金华许强李建明白书杰郭华毅
Owner 黄河机械有限责任公司