CN205228721U - Runner blade of mixed -flow water turbine balancing stand - Google Patents
Runner blade of mixed -flow water turbine balancing stand Download PDFInfo
- Publication number
- CN205228721U CN205228721U CN201521052299.1U CN201521052299U CN205228721U CN 205228721 U CN205228721 U CN 205228721U CN 201521052299 U CN201521052299 U CN 201521052299U CN 205228721 U CN205228721 U CN 205228721U
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- CN
- China
- Prior art keywords
- stand
- base
- balancing
- fixed
- stroke adjustment
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Abstract
The utility model provides a runner blade of mixed -flow water turbine balancing stand, it includes base (1), set up two frame foundation (2) that the symmetry set up on base (1) perpendicularly, set up the balanced axle (3) on frame foundation (2), location stamen axle (4) of crossbearer between two balanced axles (3), stroke adjusting screw (8), stroke control seat (9), one side of base (1) is fixed in in one of them frame foundation (2), the centre of base (1) opposite side is fixed in in stroke control seat (9), another frame foundation (2) are portable to be connected in guide rail (11) of base (1), one end vertical fixation in the outside of portable frame foundation (2) bottom of stroke adjusting screw (8), another end screw thread connection is in stroke control seat (9). Whether hydraulic turbine runner that this balancing stand can detect out production fast, effectively exists that blade opening is inhomogeneous, the inhomogeneous isoequilibrium nature problem in seal ring clearance, and easy operation judges directly perceivedly, and the result is accurate.
Description
Technical field
The utility model relates to hydraulic turbine preparing technical field, is specifically related to a kind of balancing stand for detecting francis turbine runner whole machine balancing.
Background technology
Francis turbine is also known as the Francis hydraulic turbine, and current are from surrounding radial inflow runner, and be then similar to and axially flow out runner, its runner mainly comprises the parts such as crown, lower ring and blade.This runner in the preparation, needs first be had good positioning the position between crown and lower ring, and then spot welding blade between crown and lower ring, makes just tool model, more further by crown, firm welding between lower ring and blade.The blade quantity of runner is more, and maintenance blade opening is even, gap of seal ring even and whole machine balancing is extremely important, otherwise can affect the normal use of Francis turbine.
Utility model content
Technical problem to be solved in the utility model is for above prior art, a kind of balancing stand detecting francis turbine runner whole machine balancing is provided, this balancing stand can detect whether the rotary wheel of water turbine of production exists that blade opening is uneven, the uneven isoequilibrium sex chromosome mosaicism of gap of seal ring quickly and efficiently, simple to operate, judge directly perceived, result is accurate.
The technical scheme that the utility model adopts is:
A kind of francis turbine runner balancing stand, this balancing stand comprises base, be vertically installed in two symmetrically arranged stands on base, be arranged at the balancing shaft on stand, the location stamen axle of crossbearer between two balancing shafves, stroke adjustment screw rod, stroke adjustment seat, described stand is up-small and down-big trapezium structure, the two ends of stand top board are fixed at the two ends of described balancing shaft by positioning stud, the middle of described top board is combined with adjustment stud, and the top adjusting stud is fixed with the v-shaped bearing block for supporting balancing shaft, one of them stand described is fixed on the side of base, stroke adjustment seat is fixed on the centre of base opposite side, the removable guide rail being connected to base of another stand described, the outside bottom removable stand is vertically fixed in one end of described stroke adjustment screw rod, the other end is threadedly connected to stroke adjustment seat.
The base of this rotary wheel of water turbine balancing stand is fixed on ground by foot bolt level in advance, first positioning stud is finely tuned during use, adjustment stud, balancing shaft is made to be horizontally disposed with, and two balancing shafves are in same level height, then runner is placed on location stamen axle, and location stamen pedestal is located on two balancing shafves, if runner bucket aperture is even, gap of seal ring is even, whole machine balancing is good, so runner can be statically placed on this balancing stand, if it is uneven to there is blade opening in runner, the problems such as gap of seal ring is uneven, so runner can occur due to imbalance rolling.
After adopting above structure, the utility model compared with prior art, has the following advantages:
(1) can detect whether the rotary wheel of water turbine of production exists that blade opening is uneven, the uneven isoequilibrium sex chromosome mosaicism of gap of seal ring quickly and efficiently, simple to operate, judge directly perceived, result is accurate;
(2) sound construction, can the weight of effectively balance support axle and runner, and ensure that balancing shaft is indeformable, ensures the accuracy of runner balance test;
(3) stand one is fixed, and another is removable, and in order to be suitable for the balance test of different size runner, use more flexible, the scope of application is wider;
(4) setting of positioning stud, adjustment stud may be used for the relative position of finely tuning balancing shaft, can correct in time in use because pressurized is uneven or the overuse balancing shaft and location stamen axle horizontal departure problem that cause, ensure the accuracy of balance test, and be conducive to the serviceable life extending this balancing stand.
As preferably, described stroke adjustment seat is provided with bearing, stroke adjustment seat is fixed in the outer ring of described bearing, inner ring is connected with stroke adjustment screw flight.Realize by bearing the position adjustments that stroke adjustment screw rod is equivalent to stroke adjustment seat, transmission performance is better, regulates more precisely, reliable.
As preferably, the inner ring sidepiece of described bearing is provided with control hand wheel.The setting of control hand wheel makes the stroke adjustment of stroke adjustment screw rod more convenient, operates more laborsaving, humanized.
As preferably, two symmetrically arranged, below is outward-dipping support bars between the top board of described stand and base plate, the top of described two support bars is individually fixed on top board and adjusts stud both sides, bottom is individually fixed in inside base plate two ends.This structure can strengthen the structural strength of stand, makes the weight of effective balance support axle and runner, and ensures that balancing shaft is indeformable, ensures the accuracy of runner balance test.
As preferably, described base is the rectangular iron sheet frame that width equals stand bottom width, length is greater than stand height.Base adopts length to be greater than the rectangular iron sheet frame of stand height, i.e. long rectangular iron sheet frame, is conducive to ensureing the horizontality of this base thus guarantees the accuracy that runner balance is tested.
As preferably, the two ends upper surface of described balancing shaft is respectively fixed with a triangle convex preventing from locating stamen axle and fall down.The setting of triangle convex, in case location stamen axle that misoperation causes such as to tumble at the generation of fortuitous event, definitely ensures use safety.
As preferably, the below of described adjustment stud is close to stand top board and is combined with stud adjusting nut.Being provided with of stud adjusting nut is beneficial to the stability that guarantee adjusts stud, adds the fastness of v-shaped bearing block supporting.
Accompanying drawing explanation
Shown in Fig. 1 is that facing of the utility model francis turbine runner balancing stand cuts open figure;
Shown in Fig. 2 is that figure is cutd open in the side-looking of the utility model francis turbine runner balancing stand;
Shown in Fig. 3 is the vertical view of the utility model francis turbine runner balancing stand.
Wherein: 1, base; 2, stand; 3, balancing shaft 4, location stamen axle; 5, positioning stud; 6, stud is adjusted; 7, v-shaped bearing block; 8, stroke adjustment screw rod; 9, stroke adjustment seat; 10, stud adjusting nut; 11, guide rail; 21, top board; 22, base plate; 23, support bar; 31, triangle convex; 91, bearing; 92, control hand wheel; 101, runner; 102, foot bolt.
Embodiment
Below in conjunction with embodiment, the present invention is further described in detail.Iting is noted that following illustrating is all exemplary, being intended to the invention provides further instruction.Except as otherwise noted, all Science and Technology terms that the present invention uses have the identical meanings usually understood with the technical field of the invention personnel.
As Figure 1-3, the utility model francis turbine runner balancing stand comprise base 1, the symmetrically arranged stand 2 of two of being vertically installed on base 1, the balancing shaft 3 be arranged on stand 2, location stamen axle 4, stroke adjustment screw rod 8, the stroke adjustment seat 9 of crossbearer between two balancing shafves 3.Described base 1 for width equal stand 2 bottom width, length be greater than stand 2 height rectangular iron sheet frame.Base 1 is fixed on ground by foot bolt 102 level.
Described stand 2 is up-small and down-big trapezium structure, comprises top board 21, base plate 22, both sides side plate.The two ends of stand 2 top board 21 are fixed at the two ends of described balancing shaft 3 by positioning stud 5, the middle of described top board 21 is combined with adjustment stud 6 and the top adjusting stud 6 is fixed with v-shaped bearing block 7 for supporting balancing shaft 3.The below of described adjustment stud 6 is close to stand 2 top board 21 and is combined with stud adjusting nut 10.Two symmetrically arranged, below is outward-dipping support bars 23 between the top board 21 of described stand 2 and base plate 22, the top of described two support bars 23 is individually fixed on top board 21 and adjusts stud 6 both sides, bottom is individually fixed in inside base plate 22 two ends.The two ends upper surface of described balancing shaft 3 is respectively fixed with a triangle convex 31 preventing location stamen axle 4 from falling down.
The centre that one of them stand 2 described is fixed on the side of base 1, stroke adjustment seat 9 is fixed on base 1 opposite side.The removable guide rail 11 being connected to base 1 of another stand 2 described, the quantity of guide rail 11 is twice, is arranged on two pieces of iron plates of base 1 length direction.Outside bottom removable stand 2 is vertically fixed in one end of described stroke adjustment screw rod 8, the other end is threadedly connected to stroke adjustment seat 9, concrete structure is that described stroke adjustment seat 9 is provided with bearing 91, and stroke adjustment seat 9 is fixed in the outer ring of described bearing 91, inner ring is threaded with stroke adjustment screw rod 8.The inner ring sidepiece of described bearing 91 is provided with control hand wheel 92.
Above embodiment is to explanation of the present utility model and explains further, instead of to restriction of the present utility model, any amendment done in interest field of the present utility model, all falls into protection domain of the present utility model.
Claims (7)
1. a francis turbine runner balancing stand, it is characterized in that: comprise base (1), be vertically installed in two symmetrically arranged stands (2) on base (1), be arranged at the balancing shaft (3) on stand (2), location stamen axle (4) of crossbearer between two balancing shafves (3), stroke adjustment screw rod (8), stroke adjustment seat (9), described stand (2) is up-small and down-big trapezium structure, the two ends of stand (2) top board (21) are fixed at the two ends of described balancing shaft (3) by positioning stud (5), the middle of described top board (21) is combined with adjustment stud (6), and the top adjusting stud (6) is fixed with the v-shaped bearing block (7) for supporting balancing shaft (3), described one of them stand (2) is fixed on the side of base (1), stroke adjustment seat (9) is fixed on the centre of base (1) opposite side, the removable guide rail (11) being connected to base (1) of described another stand (2), the outside of removable stand (2) bottom is vertically fixed in one end of described stroke adjustment screw rod (8), the other end is threadedly connected to stroke adjustment seat (9).
2. a kind of francis turbine runner balancing stand according to claim 1, it is characterized in that: described stroke adjustment seat (9) is provided with bearing (91), stroke adjustment seat (9) is fixed in the outer ring of described bearing (91), inner ring is threaded with stroke adjustment screw rod (8).
3. a kind of francis turbine runner balancing stand according to claim 2, is characterized in that: the inner ring sidepiece of described bearing (91) is provided with control hand wheel (92).
4. a kind of francis turbine runner balancing stand according to claim 1, it is characterized in that: two symmetrically arranged, below is outward-dipping support bars (23) between the top board (21) of described stand (2) and base plate (22), the top of described two support bars (23) is individually fixed on top board (21) and adjusts stud (6) both sides, bottom is individually fixed in inside base plate (22) two ends.
5. a kind of francis turbine runner balancing stand according to claim 1, is characterized in that: described base (1) for width equal stand (2) bottom width, length be greater than stand (2) height rectangular iron sheet frame.
6. a kind of francis turbine runner balancing stand according to claim 1, is characterized in that: the two ends upper surface of described balancing shaft (3) is respectively fixed with a triangle convex (31) preventing location stamen axle (4) from falling down.
7. a kind of francis turbine runner balancing stand according to claim 1, is characterized in that: the below of described adjustment stud (6) is close to stand (2) top board (21) and is combined with stud adjusting nut (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521052299.1U CN205228721U (en) | 2015-12-16 | 2015-12-16 | Runner blade of mixed -flow water turbine balancing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521052299.1U CN205228721U (en) | 2015-12-16 | 2015-12-16 | Runner blade of mixed -flow water turbine balancing stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205228721U true CN205228721U (en) | 2016-05-11 |
Family
ID=55903778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521052299.1U Expired - Fee Related CN205228721U (en) | 2015-12-16 | 2015-12-16 | Runner blade of mixed -flow water turbine balancing stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205228721U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319976A (en) * | 2019-07-04 | 2019-10-11 | 重庆水轮机厂有限责任公司 | A kind of francis turbine runner dynamic balance running method |
| CN116577020A (en) * | 2023-07-13 | 2023-08-11 | 常州市中海船舶螺旋桨有限公司 | Marine screw static balance check out test set |
-
2015
- 2015-12-16 CN CN201521052299.1U patent/CN205228721U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319976A (en) * | 2019-07-04 | 2019-10-11 | 重庆水轮机厂有限责任公司 | A kind of francis turbine runner dynamic balance running method |
| CN116577020A (en) * | 2023-07-13 | 2023-08-11 | 常州市中海船舶螺旋桨有限公司 | Marine screw static balance check out test set |
| CN116577020B (en) * | 2023-07-13 | 2023-10-20 | 常州市中海船舶螺旋桨有限公司 | Marine screw static balance check out test set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20161216 |