CN201680798U - Machining allowance measurement device of inner wall of runner chamber of water current generator - Google Patents
Machining allowance measurement device of inner wall of runner chamber of water current generator Download PDFInfo
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- CN201680798U CN201680798U CN 201020170503 CN201020170503U CN201680798U CN 201680798 U CN201680798 U CN 201680798U CN 201020170503 CN201020170503 CN 201020170503 CN 201020170503 U CN201020170503 U CN 201020170503U CN 201680798 U CN201680798 U CN 201680798U
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Abstract
The utility model relates to a machining allowance measurement device of the inner wall of a runner chamber of a water current generator. The machining allowance measurement device is characterized in that a circular upright post is vertically welded on a base; an upper turning sleeve and a lower turning sleeve are respectively movably arranged at the upper end and the lower end of the upright post and are respectively provided with an upper radial arm and a lower radial arm; an upper telescopic rod and a lower telescopic rod are respectively arranged at the end parts of the upper radial arm and the radial arm; three pull rods are arranged between the upper telescopic rod and the lower telescopic rod; sample plates for detecting the inner wall of the runner chamber are arranged at the front ends of the telescopic rod and the lower telescopic rod; a balance beam of the upper radial arm is arranged on the upper turning sleeve; a balancing weight is arranged at the end part of the balance beam; a support turning sleeve is arranged at the top end of the upright post; a pull rod connected with the balance beam is arranged on one side of the support turning sleeve; and a pull rod connected with the upper radial arm and an adjusting turn buckle are arranged on the other side of the support turning sleeve. By using a sample plate contrasting mode, the real condition of the wall thickness of the runner chamber at the corresponding positions can be quickly analyzed and the work efficiency can be greatly improved; and in addition, the utility model has the advantages of simple structure, easy manufacture and convenient operation.
Description
Technical field
The utility model relates to a kind of water flow generator runner envelope inwall process redundancy measurement mechanism.
Background technology
Runner envelope is the core component of hydraulic turbine part in the water generating unit, and its inwall flow-passing surface is a curved surface, is subjected to water impact during work.Because its special job specification of runner envelope, and the high tired working method of hydroelectric facility, therefore the flow-passing surface shock resistance to runner envelope requires than higher, rotates steadily (not producing vibration) during for the work of assurance hydrogenerator, requires wall thickness dimension that tolerance limits is arranged during design.Runner envelope weighs 55 tons, maximum rotating diameter φ 7600mm, the runner envelope wall thickness is controlled at ± the 1mm scope in.Because hydroelectric facility is all bigger, known runner envelope wall thickness conventional sense method is a geometric measurement method, promptly on inwall to be measured, draw several places pitch circle line, observe the situation of reserving process redundancy in this scope at this several places pitch circle line then, but the result who measures like this is inaccurate; It is to utilize senior laser detection equipment that another kind accurately measures, but this equipment not only sense cycle is long but also cost an arm and a leg, thereby increase the processing cost of runner envelope.
Summary of the invention
The utility model provides a kind of simple in structure, practical water flow generator runner envelope inwall process redundancy measurement mechanism for solving the technical matters that exists in the known technology.
The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: a kind of water flow generator runner envelope inwall process redundancy measurement mechanism, comprise base, be vertically welded in the circular abutment on the base, be movably arranged on the last rotation set and the following rotation set of column top and bottom, be installed in last spiral arm and lower rotatory arm that rotation set and backspin put respectively, and the last expansion link and the following expansion link that are installed in spiral arm and lower rotatory arm end respectively, described going up between expansion link and the following expansion link is equipped with three pull bars, last expansion link and following expansion link front end are equipped with the model that detects the runner envelope inwall, the described balance beam that spiral arm is installed on the rotation set of going up, the end of balance beam is equipped with balancing weight, described column top is equipped with the support rotation set, support rotation set one side the pull bar that is connected with balance beam is installed, support rotation set opposite side is equipped with the pull bar that is connected with last spiral arm and the adjustable screw button of pull bar.
The utility model can also adopt following technical scheme: described model is shaped on the data scale mark on the surface.
Advantage and the good effect that the utlity model has are: owing at last expansion link and following expansion link front end the model that detects the runner envelope inwall is installed, utilize the mode of model contrast, this device and the runner envelope of wall thickness to be detected are fixed according to correspondence position, contrast according to the theoretical numerical value on the detection model and the numerical value of actual measurement, can simply clearly analyze the runner envelope wall thickness truth of corresponding position, thereby can determine concrete processing capacity, and then guarantee that runner envelope processes that wall thickness satisfies the design request for utilization after the preface, has improved work efficiency greatly; Model can be divided into different brackets, so just can increase the quantity of data acquisition, and testing result is more accurate; Also can carry out wall thickness detecting to other solid of revolution, so usable range is wide, utilization factor is high by the transposing model; In addition the utility model also have simple in structure, be easy to manufacturing, reliability height, advantage flexibly easy to use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, base; 2, following rotation set; 3, column; 4, go up rotation set; 5, balance beam; 6, balancing weight; 7, pull bar; 8, support rotation set; 9, hoisting ring; 10, pull bar; 11, adjustable screw button; 12, go up spiral arm; 13, trip bolt; 14, go up expansion link; 15, model; 16, runner envelope inwall; 17, following expansion link; 18, trip bolt; 19, pull bar; 20, pull bar; 21, pull bar; 22, lower rotatory arm.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, now exemplify following examples, and conjunction with figs. is described in detail as follows: as shown in Figure 1, vertical welding is connected to circular abutment 3 on base 1, be movably installed with rotation set 4 and following rotation set 2 in the column top and bottom, put at last rotation set and backspin and to be separately installed with spiral arm 12 and lower rotatory arm 22, be separately installed with expansion link 14 and following expansion link 17 at last spiral arm and lower rotatory arm end, at the trip bolt 13,18 that expansion link and following expansion link are installed on last spiral arm and the lower rotatory arm.Described going up between expansion link and the following expansion link is equipped with three pull bars 19,20,21, and last expansion link and following expansion link front end are equipped with the model 15 that detects runner envelope inwall 16, are shaped on the data scale mark on the model surface.The described balance beam 5 that spiral arm is installed on the rotation set of going up, the end of balance beam is equipped with balancing weight 6.Described column top is equipped with supports rotation set 8, supports rotation set one side the pull bar 7 that is connected with balance beam is installed, and support rotation set opposite side is equipped with the pull bar 10 that is connected with last spiral arm and the adjustable screw button 11 of pull bar, and the column upper end also is equipped with hoisting ring 9.Like this, owing to the model that detects the runner envelope inwall is installed at last expansion link and following expansion link front end, utilize the mode of model contrast, this device and the runner envelope of wall thickness to be detected are fixed according to correspondence position, contrast according to the theoretical numerical value on the detection model and the numerical value of actual measurement, can simply clearly analyze the runner envelope wall thickness truth of corresponding position, thereby can determine concrete processing capacity, and then guarantee that runner envelope processes that wall thickness satisfies the design request for utilization after the preface, has improved work efficiency greatly; Model can be divided into different brackets, so just can increase the quantity of data acquisition, and testing result is more accurate; Also can carry out wall thickness detecting to other solid of revolution, so usable range is wide, utilization factor is high by the transposing model; In addition the utility model also have simple in structure, be easy to manufacturing, reliability height, advantage flexibly easy to use.
Using method places runner envelope center horizontal positioned with frock, newel is vertical, to detect model is contained on the frock, adjust frock spiral arm expansion link and rotation set up and down, guarantee that the model center line aligns with the runner envelope center line, model plane and runner envelope Flange Plane have the 0.5mm gap, gap between model that records then and the runner envelope inwall curved surface is t ', and calculate to such an extent that the theoretical gap between model and the processing back runner envelope inwall curved surface is t according to drawing, t-t ' is institute's survey runner envelope inwall Machining of Curved Surface surplus, and frock is returned to circle and can be checked the circumferential position situation that all is shaped.If theoretical value and deviation of measuring value excessive (exceeding the design geometric tolerances requires) can be carried out flame school shape or local repair welding in first being processed, guarantee that its processing back wall thickness meets design requirement.
Claims (2)
1. water flow generator runner envelope inwall process redundancy measurement mechanism, comprise base, be vertically welded in the circular abutment on the base, be movably arranged on the last rotation set and the following rotation set of column top and bottom, be installed in last spiral arm and lower rotatory arm that rotation set and backspin put respectively, and the last expansion link and the following expansion link that are installed in spiral arm and lower rotatory arm end respectively, it is characterized in that: described going up between expansion link and the following expansion link is equipped with three pull bars, last expansion link and following expansion link front end are equipped with the model that detects the runner envelope inwall, the described balance beam that spiral arm is installed on the rotation set of going up, the end of balance beam is equipped with balancing weight, described column top is equipped with the support rotation set, support rotation set one side the pull bar that is connected with balance beam is installed, support rotation set opposite side is equipped with the pull bar that is connected with last spiral arm and the adjustable screw button of pull bar.
2. water flow generator runner envelope inwall process redundancy measurement mechanism according to claim 1, it is characterized in that: described model is shaped on the data scale mark on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020170503 CN201680798U (en) | 2010-04-26 | 2010-04-26 | Machining allowance measurement device of inner wall of runner chamber of water current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020170503 CN201680798U (en) | 2010-04-26 | 2010-04-26 | Machining allowance measurement device of inner wall of runner chamber of water current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201680798U true CN201680798U (en) | 2010-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020170503 Expired - Fee Related CN201680798U (en) | 2010-04-26 | 2010-04-26 | Machining allowance measurement device of inner wall of runner chamber of water current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201680798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825402A (en) * | 2012-09-07 | 2012-12-19 | 中原特钢股份有限公司 | Preheating device for progressive welding of large-pipe-diameter casting pipe die |
| CN109931899A (en) * | 2019-02-28 | 2019-06-25 | 武汉船用机械有限责任公司 | Flange face machining allowance detection method |
-
2010
- 2010-04-26 CN CN 201020170503 patent/CN201680798U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825402A (en) * | 2012-09-07 | 2012-12-19 | 中原特钢股份有限公司 | Preheating device for progressive welding of large-pipe-diameter casting pipe die |
| CN109931899A (en) * | 2019-02-28 | 2019-06-25 | 武汉船用机械有限责任公司 | Flange face machining allowance detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20120426 |