CN108547725A - A kind of steel ball guide groove with arc surface - Google Patents
A kind of steel ball guide groove with arc surface Download PDFInfo
- Publication number
- CN108547725A CN108547725A CN201810587652.8A CN201810587652A CN108547725A CN 108547725 A CN108547725 A CN 108547725A CN 201810587652 A CN201810587652 A CN 201810587652A CN 108547725 A CN108547725 A CN 108547725A
- Authority
- CN
- China
- Prior art keywords
- guide groove
- steel ball
- groove
- contact
- cambered surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 57
- 239000010959 steel Substances 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 12
- 239000010687 lubricating oil Substances 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 abstract description 11
- 239000011324 bead Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010977 unit operation Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 235000014121 butter Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/06—Bearing arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
A kind of steel ball guide groove with arc surface of the present invention, guide groove is made of outer gate barrel, control ring, pressure ring, the steel ball is placed in guide groove, it is characterized in that, the face that guide groove is contacted with steel ball is cambered surface, and the position of guide groove cambered surface is steel ball and the tangent contact point of guide groove, after the groove profile of guide groove is changed to cambered surface contact, contact area can be increased, reduce the abrasion generated when contact；Mainly steel ball guide groove structure is optimized, point contact is changed into ball contact.Its advantage is that reducing the abrasion of steel ball and steel bead groove in the case where not reducing practical performance, and installation can be made very convenient, steel ball and slot point contact in old-fashioned structure is overcome, steel ball is caused to damage, steel bead groove is worn, the problem of so as to cause water distributor stability and safety.The structure has preferable Social benefit and economic benefit.
Description
Technical field
The present invention relates to hydraulic turbine fields, and in particular to a kind of steel ball slot structure of tubular turbine.
Background technology
Through-flow Kaplan turbine steel ball uses point contact form, steel ball and the abrasion of steel ball guide groove non-with steel bead groove at present
Chang great, once steel ball abrasion occurs, steel bead groove necessarily damages, and water distributor China and foreign countries increase with the gap with control ring, control ring
Deformation is serious, and unit operation is unstable, it is necessary to unit reparation is dismantled, and power station scene does not have repair ability, it is necessary to transport master back
Machine factory repairs, and causes subsequent transportation and maintenance cost to increase, in this case, it is necessary to structure herein is improved, to adapt to power station
The needs of safe operation.During operation, control ring constantly moves back and forth unit, and the direct rubs mutually of steel ball, lubricating oil can
It can leak, not only influenced the operation of unit but also pollute environment.
Invention content
In view of the above-mentioned problems, the purpose of the present invention is mainly used for the guiding of the steel ball in through-flow Kaplan turbine water distributor
Slot structure very effective can promote the steady of water distributor more particularly to one kind in the case where not reducing practical performance
Qualitative and safety structure.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of steel ball guide groove with arc surface, leads
It is made of to slot outer gate barrel, control ring, pressure ring, the steel ball is placed in guide groove, which is characterized in that guide groove connects with steel ball
Tactile face is cambered surface, and the position of guide groove cambered surface is steel ball and the tangent contact point of guide groove, and the groove profile of guide groove is changed to arc
After the contact of face, contact area can be increased, reduce the abrasion generated when contact, the arbitrary cambered surface of guide groove is equipped with oil storage
Slot is used for the storage of lubricating oil.
Further, the cambered surface depth of the guide groove is the 1/10-1/15 of steel ball radius.
Further, the shape of the oil storage tank is arbitrary groove profile, can be rectangular channel, arc groove, T-slot etc..
Further, the width in guide groove outer gate barrel face is 68.73mm, with original guiding well width 70.71mm
It compares, processing when is narrow；The guiding well width of the control ring and pressure ring side is 66.73mm and original guide groove
Width 68.71mm is compared, and processing when is narrow.
Further, the height of the upper and lower ends of the guide groove is 28.36mm and 32mm, with original guiding groove processing height
Degree is consistent.
The advantage of the invention is that：In original structure, due to matching outside, the machined surface that control ring and pressure ring coordinate with steel ball be
The conical surface, thus steel ball with it is outer with and the groove profile that coordinates of control ring and pressure ring be point contact, since contact area is too small, cause steel
Bead mill is damaged, with unit operation, cause it is outer match, the abrasion of control ring, pressure ring groove profile, match outside and control czermak space and further increase；
When unit operation, since the tubular paddle hydraulic turbine that turns is double adjusting units, guide vane is in adjustment state always substantially, because in addition
Match and control czermak space increasing, can cause control ring unstability, unit operation that will play pendulum, there are security risks.
This structure does not reduce raw steel pearl and the intensity of former guide groove greatly reduces water distributor as a result of this new structure
The deformation of middle control ring can make follow-up power plant maintenance cost reduction.The design of oil storage tank can store lubricating oil, prevent from lubricating
Oil, which leaks, to be caused to pollute.The present invention mainly optimizes steel ball guide groove structure, and point contact is changed into ball contact.Its advantage is that
The abrasion of steel ball and steel bead groove is reduced in the case where not reducing practical performance, and installation can be made very convenient, gram
Taken steel ball and slot point contact in old-fashioned structure, steel ball caused to damage, steel bead groove abrasion, so as to cause water distributor stability and
The problem of safety.The structure has preferable Social benefit and economic benefit.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is original structure installation diagram
Fig. 2 is the cooperation profile of groove of original structure
Fig. 3 is structure of the invention figure
Fig. 4 is the comparative illustration figure of structure of the invention and original structure
Fig. 5 is the structure chart of oil storage tank of the present invention
Wherein：1 outer gate barrel, 2 steel balls, 3 control rings, 4 pressure rings, 5 oil storage tanks
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
Please refer to Fig.1 and Fig. 2, in original structure, due to matching outside, machined surface that control ring 3 and pressure ring 4 and steel ball 2 coordinate it is equal
For the conical surface, thus steel ball 2 with it is outer with and control ring 3 and the groove profile of the cooperation of pressure ring 4 be point contact, since contact area is too small,
Cause steel ball 2 to wear, with unit operation, cause it is outer match, the abrasion of control ring 3,4 groove profile of pressure ring, it is outer with and 3 gap of control ring into
One step increases；When unit operation, since the tubular paddle hydraulic turbine that turns is double adjusting units, guide vane is in substantially adjusts always shape
State increases with 3 gap of control ring because matching in addition, can cause 3 unstability of control ring, unit operation that will play pendulum, deposit
In security risk.
Referring to Fig. 3, being the original processing conical surface by the peripheral dotted line of steel ball 2, belongs to point contact, be adjusted to spherical surface and cambered surface now
Contact, increases contact area, reduces the abrasion of steel ball 2, accordingly can also reduce the outer groove profile with control ring 3 and wear.
A kind of 2 guide grooves of steel ball with arc surface of Fig. 4, guide groove is made of outer gate barrel 1, control ring 3, pressure ring 4, described
Steel ball 2 is placed in guide groove, which is characterized in that the face that guide groove is contacted with steel ball 2 is cambered surface, and the position of guide groove cambered surface is steel
Pearl 2 and guide groove tangent contact point can increase contact area, reduction connects after the groove profile of guide groove is changed to cambered surface contact
The abrasion generated when tactile, the arbitrary cambered surface of guide groove are equipped with oil storage tank 5, are used for the storage of lubricating oil.
Further, the cambered surface depth of the guide groove is the 1/10-1/15 of 2 radius of steel ball.
Further, the shape of the oil storage tank 5 is arbitrary groove profile, can be rectangular channel, arc groove, T-slot etc..
Further, the width in 1 face of guide groove outer gate barrel is 68.73mm, with original guiding well width 70.71mm
It compares, processing when is narrow；The guiding well width of 4 side of the control ring 3 and pressure ring is 66.73mm and original guiding
Well width 68.71mm is compared, and processing when is narrow.
Further, the height of the upper and lower ends of the guide groove is 28.36mm and 32mm, with original guiding groove processing height
Degree is consistent.
Fig. 5 illustrates the oil storage tank 5 of guide groove intrados, and the number quantity and form of oil storage tank 5 are unlimited with shape shown in Fig. 4
Shape can also be other groove profiles, it is therefore intended that butter on steel ball it is extra may exist oil storage tank 5, do not overflow.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of steel ball guide groove with arc surface, guide groove are made of outer gate barrel, control ring, pressure ring, the steel ball is placed in
In guide groove, which is characterized in that the face that guide groove is contacted with steel ball is cambered surface, and the position of guide groove cambered surface is steel ball and guide groove
Tangent contact point, the arbitrary cambered surface of guide groove are equipped with oil storage tank, are used for the storage of lubricating oil.
2. a kind of steel ball guide groove with arc surface according to claim 1, it is characterised in that：The cambered surface of the guide groove
Depth is the 1/10-1/15 of steel ball radius.
3. a kind of steel ball guide groove with arc surface according to claim 1, it is characterised in that：The shape of the oil storage tank
Can be rectangular channel, arc groove, T-slot etc. for arbitrary groove profile.
4. a kind of steel ball guide groove with arc surface according to claim 1, it is characterised in that：The outer water distribution of the guide groove
The width of anchor ring is 68.73mm；The guiding well width of the control ring and pressure ring side is 66.73mm.
5. a kind of steel ball guide groove with arc surface according to claim 1, it is characterised in that：Above and below the guide groove
The height at both ends is 28.36mm and 32mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810587652.8A CN108547725A (en) | 2018-06-08 | 2018-06-08 | A kind of steel ball guide groove with arc surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810587652.8A CN108547725A (en) | 2018-06-08 | 2018-06-08 | A kind of steel ball guide groove with arc surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108547725A true CN108547725A (en) | 2018-09-18 |
Family
ID=63493637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810587652.8A Pending CN108547725A (en) | 2018-06-08 | 2018-06-08 | A kind of steel ball guide groove with arc surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108547725A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593001A (en) * | 2022-03-14 | 2022-06-07 | 德阳市东方恒运电机有限公司 | Assembly method between control ring and outer water distribution ring of tubular turbine |
| CN114607547A (en) * | 2022-03-14 | 2022-06-10 | 德阳市东方恒运电机有限公司 | Method for reducing stress between control ring and outer water distribution ring of tubular turbine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03177613A (en) * | 1989-12-07 | 1991-08-01 | Toyo Fastener Kk | Pivot member and manufacture thereof |
| US5588812A (en) * | 1995-04-19 | 1996-12-31 | Nimbus, Inc. | Implantable electric axial-flow blood pump |
| JP2003083414A (en) * | 2001-09-12 | 2003-03-19 | Koyo Seiko Co Ltd | Ball screw device |
| US20040032998A1 (en) * | 2001-08-28 | 2004-02-19 | Koyo Seiko Co., Ltd. | Four-point contact ball bearing |
| JP2005207484A (en) * | 2004-01-22 | 2005-08-04 | Ntn Corp | Shaft coupling |
| CN203348548U (en) * | 2013-06-05 | 2013-12-18 | 天津市天发重型水电设备制造有限公司 | Horizontal unit steel ball dustproof structure |
| CN205097210U (en) * | 2015-11-16 | 2016-03-23 | 哈尔滨泓鑫数控机电工程有限公司 | Robot instrument quick change device |
| CN105673704A (en) * | 2016-04-20 | 2016-06-15 | 哈尔滨理工大学 | Novel bearing with inner ring being in arc and conical shape and outer ring being arc rolling track |
| CN206175486U (en) * | 2016-11-15 | 2017-05-17 | 人本集团有限公司 | Take bearing retainer of oil storage tank |
| CN208669500U (en) * | 2018-06-08 | 2019-03-29 | 天津市天发重型水电设备制造有限公司 | A kind of steel ball guide groove with arc surface |
-
2018
- 2018-06-08 CN CN201810587652.8A patent/CN108547725A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03177613A (en) * | 1989-12-07 | 1991-08-01 | Toyo Fastener Kk | Pivot member and manufacture thereof |
| US5588812A (en) * | 1995-04-19 | 1996-12-31 | Nimbus, Inc. | Implantable electric axial-flow blood pump |
| US20040032998A1 (en) * | 2001-08-28 | 2004-02-19 | Koyo Seiko Co., Ltd. | Four-point contact ball bearing |
| JP2003083414A (en) * | 2001-09-12 | 2003-03-19 | Koyo Seiko Co Ltd | Ball screw device |
| JP2005207484A (en) * | 2004-01-22 | 2005-08-04 | Ntn Corp | Shaft coupling |
| CN203348548U (en) * | 2013-06-05 | 2013-12-18 | 天津市天发重型水电设备制造有限公司 | Horizontal unit steel ball dustproof structure |
| CN205097210U (en) * | 2015-11-16 | 2016-03-23 | 哈尔滨泓鑫数控机电工程有限公司 | Robot instrument quick change device |
| CN105673704A (en) * | 2016-04-20 | 2016-06-15 | 哈尔滨理工大学 | Novel bearing with inner ring being in arc and conical shape and outer ring being arc rolling track |
| CN206175486U (en) * | 2016-11-15 | 2017-05-17 | 人本集团有限公司 | Take bearing retainer of oil storage tank |
| CN208669500U (en) * | 2018-06-08 | 2019-03-29 | 天津市天发重型水电设备制造有限公司 | A kind of steel ball guide groove with arc surface |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593001A (en) * | 2022-03-14 | 2022-06-07 | 德阳市东方恒运电机有限公司 | Assembly method between control ring and outer water distribution ring of tubular turbine |
| CN114607547A (en) * | 2022-03-14 | 2022-06-10 | 德阳市东方恒运电机有限公司 | Method for reducing stress between control ring and outer water distribution ring of tubular turbine |
| CN114593001B (en) * | 2022-03-14 | 2024-01-09 | 德阳市东方恒运电机有限公司 | Assembling method between control ring and outer water distribution ring of through-flow turbine |
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