CN202956261U - Blade root loading device loading device - Google Patents
Blade root loading device loading device Download PDFInfo
- Publication number
- CN202956261U CN202956261U CN 201220568112 CN201220568112U CN202956261U CN 202956261 U CN202956261 U CN 202956261U CN 201220568112 CN201220568112 CN 201220568112 CN 201220568112 U CN201220568112 U CN 201220568112U CN 202956261 U CN202956261 U CN 202956261U
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- loading
- blade root
- testpieces
- pedestal
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Abstract
A blade root test loading device comprises a pedestal, a loading channel iron, loading pad irons, loading cylinders and a loading plate, wherein the pedestal is mainly comprises a base plate and two support beams, and is in a U-shaped groove structure, and the two support beams support a wheel rim testpiece, where a blade root testpiece suspending on the U-shaped groove of the pedestal is arranged; the width of the loading channel iron is smaller than the width of the U-shaped groove on the pedestal, an inverted T-shaped slot matching in shape with the blade root testpiece is correspondingly arranged in the loading channel iron, and the loading channel iron is suspended on the crossette of the blade root testpiece through the T-shaped slot; two loading pad irons each has a smaller width than that of the U-shaped groove on the pedestal, and two loading pad irons are respectively arranged on the two end tops of the loading channel iron; two loading cylinders, of which the height is greater than that of the wheel rim testpiece, are respectively arranged on the tops of the two loading pad irons; and the loading plate is placed on the top of the loading cylinders for bearing compression loading force of a pressure testing machine. The blade root test loading device satisfies the requirements for blade root bearing intensity test on a moving blade with great length.
Description
Technical field
The utility model relates to the blade root mechanical robustness testing equipment of blade, specifically a kind of blade root experiment loading unit.
Background technology
Moving vane is the core component of turbine rotor, in order to ensure moving vane can stablize, reliable normal operation input, need to carry out multiple test to moving vane, wherein the test of the blade root loading strength of moving vane is one of important test problem, and the blade root loading strength test of moving vane is the centrifugal force that can the check moving vane overcome designing requirement.At present, test about moving vane blade root loading strength relies on common tension tester to complete, by tension tester, blade root is loaded to tensile force, check the blade root load-bearing capacity of moving vane, this test method can only be applicable to the shorter moving vane of length (centrifugal force of adaptation is less).Exploitation along with large steam turbine, require the steam discharge loss of steam turbine significantly to reduce, and the steam discharge that reduces steam turbine to lose effective method be the length that increases moving vane, the words that moving vane length increases, moving vane suffered centrifugal force in the acting operational process certainly will increase thereupon, and the centrifugal force that the moving vane of big-length is subject to usually is up to upper kiloton.In this case, if still adopt common tension tester to carry out the loading strength test to the moving vane blade root of big-length, because the loading tensile force maximum of common tension tester also only has the hundreds of ton, can't be suitable at all; Large-scale pressure testing machine has the superelevation compression loading force of upper kiloton, can meet the blade root loading strength testing requirements of big-length moving vane fully, but lacks at present experiment loading unit reasonable, coupling.
Summary of the invention
The purpose of this utility model is: for above-mentioned the deficiencies in the prior art, provide a kind of simple in structure, reliability is high, practical, can effectively be matched with the blade root experiment loading unit of large-scale pressure testing machine, thereby utilize the upper kiloton UHV (ultra-high voltage) contracting loading force of large-scale pressure testing machine to carry out tension test to the blade root loading strength of moving vane.
The technical solution adopted in the utility model is: a kind of blade root experiment loading unit, and described experiment loading unit comprises pedestal, loads channel, loads parallels, loads right cylinder and load plate; Described pedestal mainly consists of base plate and two brace summers, the groove shape structure that takes the shape of the letter U, and two brace summers, as supporting the wheel rim testpieces, are equipped with the blade root testpieces on the wheel rim testpieces, and the hanging of blade root testpieces is in the U-lag of pedestal; The width of described loading channel is less than the U-lag width on pedestal, loads on channel and has and the form fit of blade root testpieces, corresponding inverted T-shaped slotted eye, loads channel and is suspended on the convex shoulder of blade root testpieces by the inverted T-shaped slotted eye; Described loading parallels is two, and every width that loads parallels is less than the U-lag width on pedestal, and two load parallels and divide the two ends end face that is located at the loading channel; Described loading right cylinder is two, and two loading right cylinders stand to dividing and are located at two end faces that load parallels, load the height that cylindrical height is greater than the wheel rim testpieces; Described load plate is placed on two and loads cylindrical end faces, and load plate is as the compression-loaded power of bearing pressure testing machine, the tension test that utilizes the compression-loaded power of pressure testing machine to be swung to the blade root testpieces.
The cylindrical two ends of described loading are protruding dome shape structure; On described loading parallels and load plate, be respectively equipped with and the spherical groove that loads right cylinder end bosses sphere and be complementary.
The end face of the bottom surface of described loading parallels and loading channel is respectively equipped with corresponding locating slot, and locating slot is embedded with the second positioning key.
Inverted T-slot hole width on described loading channel is greater than blade root testpieces width.
Be set with the first positioning key on described loading right cylinder.
Described wheel rim testpieces straddles two brace summer middle parts of pedestal by the groove of bottom surface.
Be pasted with foil gauge on described blade root testpieces, foil gauge is connected with static strain testing system by p-wire, the stress as test blade root testpieces at the different loads state.
The beneficial effects of the utility model are: above-mentioned experiment loading unit is specially for the operating characteristic of pressure testing machine and design, rely on pedestal to be supported the wheel rim testpieces, and make to be assemblied in the blade root testpieces hanging on the wheel rim testpieces, by loading channel, load parallels, loading the parts such as right cylinder and load plate, the compression-loaded power of pressure testing machine is changed into to the blade root loading strength and test required tensile force, thereby meet the testing requirements of moving vane blade root loading strength, guarantee conveniently, accurately, check out the load-bearing capacity of blade root testpieces reliably.It has reasonable in design, simple in structure, be convenient to processing, easy to operate, reliability is high, the characteristics such as practical.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, content of the present utility model is further described.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Code name implication in figure: 1-pedestal; 2-loading channel; 3-blade root testpieces; 4-loading parallels; 5-wheel rim testpieces; 6-loading right cylinder; 7-load plate; 8-convex shoulder; 9-joining shoulder; The 10-the first positioning key; 11-base plate; 12-brace summer; 13-inverted T-shaped slotted eye; 14-U-lag; The 15-the second positioning key.
Embodiment
Referring to Fig. 1 and Fig. 2: the utility model comprises pedestal 1, loads channel 2, loads parallels 4, loads right cylinder 6 and load plate 7.Wherein, pedestal 1 mainly consists of base plate 11 and two brace summers 12, two vertical end faces that are located at base plate 11 in brace summer 12 intervals, form U-lag 14 between base plate 11 and two brace summers 12, the width requirement of U-lag 14 certainly will be greater than the blade root testpieces 3 of moving vane, pedestal 1 overall U-shaped groove shape structure, pedestal 1 is the basis of whole experiment loading unit; Two brace summers 12 are as supporting wheel rim testpieces 5, wheel rim testpieces 5 straddles the middle part of two brace summers 12 of pedestal 1 by the groove of bottom surface, be equipped with blade root testpieces 3 on wheel rim testpieces 5,3 hangings of blade root testpieces are in the U-lag 14 of pedestal 1, and the convex shoulder 8 on blade root testpieces 3 is below wheel rim testpieces 5.The width that loads channel 2 is less than the width of the U-lag 14 on pedestal 1, and the length that loads channel 2 is corresponding with the length of pedestal 1; On loading channel 2, have and the form fit of blade root testpieces 3, corresponding inverted T-shaped slotted eye 13, loading channel 2 infoldings of inverted T-shaped slotted eye 13 necks form joinings shoulder 9, require inverted T-shaped slotted eye 13 width that load on channel 2 to be slightly larger than blade root testpieces 3 width; Load channel 2 and be enclosed within on blade root testpieces 3 by inverted T-shaped slotted eye 13, and be suspended on the convex shoulder 8 of blade root testpieces 3 by the joining shoulder 9 of inverted T-shaped slotted eye 13 necks.Loading parallels 4 is two, every width that loads parallels 4 should be less than U-lag 14 width on pedestal 1, be provided with in the every end face central authorities that load parallels 4 the spherical groove of placing loading right cylinder 6, two load parallels and within 4 minutes, are located at the two ends end face that loads channel 2, in order to ensure loading parallels 4, can be placed on reliably on loading channel 2, improve the security in process of the test, be respectively equipped with corresponding locating slot every bottom surface that loads parallels 4 with the end face that loads channel 2, locating slot has been embedded in the second positioning key 15.Loading right cylinder 6 is two, the height of these two loading right cylinders 6 equates, and the height of these two loading right cylinders 6 is greater than the height of wheel rim testpieces 5, the two ends of every loading right cylinder 6 are protruding dome shape structure, two loading right cylinders 6 stand to dividing and are located at two end faces that load parallels 4, are set with the first positioning key 10 on every loading right cylinder 6.Load plate 7 is one, the two ends, bottom surface of load plate 7 are provided with and the spherical groove that loads right cylinder 6 assembly connections, load plate 7 is placed on the end face of two loading right cylinders 6, top across wheel rim testpieces 5, load plate 7 is as the compression-loaded power of bearing pressure testing machine, the tension test that utilizes the compression-loaded power of pressure testing machine to be swung to the blade root testpieces.
Above-mentioned loading right cylinder 6 and the sphere assembly structure that loads parallels 2 and load plate 7, make loading right cylinder 6 have self-align, alignment function, and location is reliable, also can make to load right cylinder 6 and can evenly transmit power.Power transmission process of the present utility model specifically, bear the compression-loaded power of pressure testing machine by load plate 7, compression-loaded power evenly is delivered on loading channel 2 by loading right cylinder 6 and loading parallels 4, change into again the tensile force of swinging to of blade root testpieces 3 by loading the channel 2 compression-loaded power that pressure testing machine is downward, thereby make blade root 3 realize tension test, reach the testing requirements of blade root testpieces 3 loading strengths.
The utility model requires the design strength of pedestal 1, loading channel 2, loading parallels 4, loading right cylinder 6 and load plate 7 certainly will be greater than the design strength of wheel rim testpieces 5.
The other guide of the present embodiment is identical with embodiment 1, difference is, be pasted with foil gauge on the blade root testpieces, foil gauge is connected with static strain testing system by p-wire, utilizes static strain testing system and foil gauge as testing the stress situation of blade root testpieces at the different loads state.
Claims (7)
1. a blade root experiment loading unit is characterized in that: described experiment loading unit comprises pedestal (1), loads channel (2), loads parallels (4), loads right cylinder (6) and load plate (7); Described pedestal (1) mainly consists of base plate (11) and two brace summers (12), groove shape structure takes the shape of the letter U, two brace summers (12) are as supporting wheel rim testpieces (5), be equipped with blade root testpieces (3) on wheel rim testpieces (5), blade root testpieces (3) hanging is in the U-lag (14) of pedestal (1); The width of described loading channel (2) is less than U-lag (14) width on pedestal (1), load on channel (2) and have and the form fit of blade root testpieces (3), corresponding inverted T-shaped slotted eye (13), load channel (2) and be suspended on the convex shoulder (8) of blade root testpieces (3) by inverted T-shaped slotted eye (13); Described loading parallels (4) is two, and every width that loads parallels (4) is less than U-lag (14) width on pedestal (1), and two load parallels (4) minute and are located at the two ends end face that loads channel (2); Described loading right cylinder (6) is two, and two loading right cylinders (6) stand to dividing and are located at two end faces that load parallels (4), and the height that loads right cylinder (6) is greater than the height of wheel rim testpieces (5); Described load plate (7) is placed on the end face of two loading right cylinders (6), and load plate (7) is as the compression-loaded power of bearing pressure testing machine, the tension test that utilizes the compression-loaded power of pressure testing machine to be swung to the blade root testpieces.
2. blade root experiment loading unit according to claim 1, it is characterized in that: the two ends of described loading right cylinder (6) are protruding dome shape structure; On described loading parallels (4) and load plate (7), be respectively equipped with and the spherical groove that loads right cylinder (6) end bosses sphere and be complementary.
3. blade root experiment loading unit according to claim 1 is characterized in that: the bottom surface of described loading parallels (4) and the end face that loads channel (2) are respectively equipped with corresponding locating slot, and locating slot is embedded with the second positioning key (15).
4. blade root experiment loading unit according to claim 1, it is characterized in that: inverted T-shaped slotted eye (13) width on described loading channel (2) is greater than blade root testpieces (3) width.
5. blade root experiment loading unit according to claim 1, is characterized in that: be set with the first positioning key (10) on described loading right cylinder (6).
6. blade root experiment loading unit according to claim 1, it is characterized in that: described wheel rim testpieces (5) straddles two brace summers (12) middle part of pedestal (1) by the groove of bottom surface.
7. blade root experiment loading unit according to claim 1, it is characterized in that: be pasted with foil gauge on described blade root testpieces, foil gauge is connected with static strain testing system by p-wire, the stress as test blade root testpieces at the different loads state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568112 CN202956261U (en) | 2012-11-01 | 2012-11-01 | Blade root loading device loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220568112 CN202956261U (en) | 2012-11-01 | 2012-11-01 | Blade root loading device loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202956261U true CN202956261U (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220568112 Expired - Lifetime CN202956261U (en) | 2012-11-01 | 2012-11-01 | Blade root loading device loading device |
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| Country | Link |
|---|---|
| CN (1) | CN202956261U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060326A (en) * | 2018-07-19 | 2018-12-21 | 北京航空航天大学 | A kind of turbine blade root position simulation test piece and design method |
| CN109187175A (en) * | 2018-09-26 | 2019-01-11 | 上海幸福摩托车有限公司 | Tooling for impeller fixed when testing impeller pulling capacity |
| CN110095342A (en) * | 2019-05-29 | 2019-08-06 | 西安建筑科技大学 | A kind of measuring device and measuring method of metal blank resistance of deformation |
-
2012
- 2012-11-01 CN CN 201220568112 patent/CN202956261U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060326A (en) * | 2018-07-19 | 2018-12-21 | 北京航空航天大学 | A kind of turbine blade root position simulation test piece and design method |
| CN109187175A (en) * | 2018-09-26 | 2019-01-11 | 上海幸福摩托车有限公司 | Tooling for impeller fixed when testing impeller pulling capacity |
| CN110095342A (en) * | 2019-05-29 | 2019-08-06 | 西安建筑科技大学 | A kind of measuring device and measuring method of metal blank resistance of deformation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |
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| CX01 | Expiry of patent term |