CN105508306A - Mechanical puller for disassembling impellers and balance plates - Google Patents
Mechanical puller for disassembling impellers and balance plates Download PDFInfo
- Publication number
- CN105508306A CN105508306A CN201610035587.9A CN201610035587A CN105508306A CN 105508306 A CN105508306 A CN 105508306A CN 201610035587 A CN201610035587 A CN 201610035587A CN 105508306 A CN105508306 A CN 105508306A
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- CN
- China
- Prior art keywords
- impeller
- balance plate
- machinery
- bearing
- processed
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
Abstract
The invention relates to a mechanical puller for disassembling impellers and balance plates. The problem of lacking of a tool capable of effectively disassembling the balance plates, balance disks and the impellers at present is solved. Two impeller disassembling devices are arranged in a symmetrical mode according to a central axis of the impellers, each pulling plate is located between the corresponding first-stage impeller and first-stage pump section, one end of each connecting bolt is connected with the corresponding pulling plate in a threaded mode, each pulling plate makes close contact with one end face of the corresponding first-stage impeller through a first lock nut arranged on the corresponding connecting bolt, the other end of each first lead screw is installed on a corresponding connecting plate in a penetrating mode and locked through a second lock nut, one end of each head jackscrew is matched with one end of a corresponding ejector bush machined with a shoulder, each head jackscrew is installed in the center of the corresponding connecting disk in a penetrating mode and connected with the connecting disk in a threaded mode, and each balance plate is fixedly connected with the corresponding connecting plate through a second lead screw and a third lock nut. The mechanical puller is used for disassembling the impellers and the balance plates.
Description
Technical field
The present invention relates to a kind of machinery and draw horse, be specifically related to a kind of machinery dismantling impeller and balance plate and draw horse.
Background technique
Multistage pump is in maintenance process, and because balance plate, Balance disc and impeller and axle adhesion phenomenon are serious, and without effective extracting tool, dismounting axle, impeller, Balance disc are comparatively difficult.Inadequate by crowbar sled impeller dynamics, do not use when hydraulic screw extractor eave tile grabs impeller (draw horse: be applicable to rail truck maintenance, mechanical erection, mine safeguarded, use that the support of construction engineering and general weight hoist declines outward, the round shape workpiece such as belt pulley, gear, bearing in still detachable various machinery.), because impeller and the intersegmental gap of pump only have 7mm, hydraulic screw extractor eave tile thickness is more than 20mm., common to draw horse to come directly towards jackscrew be taper, comparatively large with axle head frictional force when top jackscrew rotates, and to rotate when attacking part power because frictional force to consume greatly.Because between component, adhesion is serious, common extracting tool is improper because dismantling angular orientation, be difficult to effectively dismantle the parts such as balance plate, Balance disc and the impeller on axle, in shiftless situation, only have and remove axle, impeller, Balance disc by Methods of OFC-A, so not only destroy part itself but also lose to parts repair chance.
Summary of the invention
The object of the invention is the problem in order to solve the effective extracting tool lacking at present dismounting balance plate, Balance disc and impeller, and then provide a kind of machinery for impeller and balance plate dismounting and draw horse.
The present invention for solving the problems of the technologies described above adopted technological scheme is: the machinery for impeller and balance plate dismounting draws horse, comprises land, top jackscrew, top cover, two sleeve impeller dismounting device and two the second leading screws,
Every sleeve impeller dismounting device comprises arm-tie, connecting bolt, first locking nut, attaching nut, first leading screw and the second locking nut, two sleeve impeller dismounting device are symmetrical arranged about the central axis of impeller, arm-tie is between one stage impeller and primary pump section, connecting bolt is positioned at the cylindrical place of one stage impeller, one end of connecting bolt is threaded with arm-tie, one end face of arm-tie and one stage impeller is by being arranged on the first locking nut close contact on connecting bolt, it is affixed that attaching nut is passed through in the other end of connecting bolt and one end of the first leading screw, the other end of the first leading screw to be installed on land and by the second locking nut locking,
Top cover is cylindrical section, one end of top cover is processed with shoulder, the other end of top cover is drum-shaped and is sleeved on one end of pump shaft on multistage pump, top jackscrew is externally threaded columnar structured for being processed with, one end of jackscrew, top and the one end fits being processed with shoulder of top cover, top jackscrew is installed on the central position of land and is threaded with land, and the other end of top jackscrew is processed with radial direction through hole, hinge rod is installed in radial direction through hole
Two the second leading screws are symmetrical arranged about the central axis of balance plate, each balance plate and land by the second leading screw and the 3rd locking nut affixed.
The present invention compared with prior art has following effect:
Arm-tie is between impeller and pump section, utilize impeller and the intersegmental limited gap of pump dexterously, by the first locking nut, arm-tie is fixedly secured on impeller, because of the locking effect of the first locking nut, in unloading process, impeller not easily produces and loosens and skew, and because arm-tie is for being symmetrical arranged, be disassembled impeller force bearing point even, line of pull is substantially parallel with impeller axis, avoid large component to produce, compared with the instrument of existing dismounting one stage impeller, during dismounting, arm-tie and impeller are connected firmly, not easily slippage, during dismounting, pulling force steadily and pulling force is large, safety coefficient improves greatly, time saving and energy saving, and can not destroy and be disassembled the dimensional accuracy of part own and the accuracy of form and position,
Two the second leading screws not only may be used for dismantling balance plate, and can also dismantle Balance disc, the two principle is identical, and the same Marko of drawing is to complete the dismounting to impeller, balance plate and Balance disc respectively, and tool utilization is higher.
Cylindrical shape is processed in one end of top cover, and be sleeved on pump shaft one end, can prevent top cover from offseting when pushing up last item end, compared with the extracting tool being centrum or flat body with existing top, top cover axis and pump shaft axis effectively can be stoped to produce inclination angle, avoid top cover and pump shaft break-off occur.
Accompanying drawing explanation
Fig. 1 is the main cross-sectional schematic of the present invention;
Fig. 2 is the P place enlarged view in Fig. 1;
Fig. 3 is the schematic front view of land;
Fig. 4 is that the A-A of Fig. 3 is to sectional view;
Fig. 5 is the cross-sectional schematic of top jackscrew;
Fig. 6 is the structural representation of lease rods;
Fig. 7 is the half section schematic diagram of the first locking nut;
Fig. 8 is the schematic front view of arm-tie;
Fig. 9 is that the B-B of Fig. 8 is to sectional view;
Figure 10 is the main cross-sectional schematic of attaching nut;
Figure 11 is the schematic side view of attaching nut;
Figure 12 is the structural representation of connecting bolt;
Figure 13 is the structural representation of the first leading screw;
Figure 14 is the cross-sectional schematic of top cover;
Figure 15 is the structural representation of bearing base;
Figure 16 is the cross-sectional schematic of bearing cushion cover;
Figure 17 is the cross-sectional schematic of improved mat;
Figure 18 is the structural representation of the second leading screw.
Embodiment
Embodiment one: composition graphs 1 ~ Figure 14, Figure 17 and Figure 18 illustrate present embodiment, the machinery for impeller and balance plate dismounting of present embodiment draws horse, comprise land 1, top jackscrew 2, top cover 3, two sleeve impeller dismounting device and two the second leading screws 4
Every sleeve impeller dismounting device comprises arm-tie 5, connecting bolt 6, first locking nut 7, attaching nut 8, first leading screw 9 and the second locking nut 10, two sleeve impeller dismounting device are symmetrical arranged about the central axis of impeller, arm-tie 5 is between one stage impeller 100 and primary pump section 101, connecting bolt 6 is positioned at the cylindrical place of one stage impeller 100, one end of connecting bolt 6 is threaded with arm-tie 5, one end face of arm-tie 5 and one stage impeller 100 is by being arranged on the first locking nut 7 close contact on connecting bolt 6, it is affixed that attaching nut 8 is passed through in the other end of connecting bolt 6 and one end of the first leading screw 9, the other end of the first leading screw 9 to be installed on land 1 and to be locked by the second locking nut 10,
Top cover 3 is cylindrical section, one end of top cover 3 is processed with shoulder, the other end of top cover 3 is drum-shaped and is sleeved on one end of pump shaft on multistage pump, top jackscrew 2 is externally threaded columnar structured for being processed with, one end of jackscrew 2, top and the one end fits being processed with shoulder of top cover 3, top jackscrew 2 is installed on the central position of land 1 and is threaded with land 1, and the other end of top jackscrew 2 is processed with radial direction through hole 11, hinge rod 12 is installed in radial direction through hole 11
Two the second leading screws 4 are symmetrical arranged about the central axis of balance plate 102, each balance plate 102 and land 1 by the second leading screw 4 and the 3rd locking nut 13 affixed.
One end of each second leading screw 4 is threaded with balance plate 102, and the other end of the second leading screw 4 to be installed on land 1 and to be locked by the 3rd locking nut 13.
Two the second leading screws 4 not only may be used for dismantling balance plate 102, and can also dismantle Balance disc 103, the two principle is identical, and the same Marko of drawing is to complete the dismounting to impeller 100, balance plate 102 and Balance disc 103 respectively, and tool utilization is higher.
Attaching nut 8 is long nut, and one end and the connecting bolt 6 of attaching nut 8 are affixed, the other end and the first leading screw 9 affixed.Design like this, makes the connection of connecting bolt and the first leading screw more firm.
The endoporus of top jackscrew 2 can be circular hole, can be also hexagon ring, if it is processed as hexagon ring, then one end being processed with shoulder of top cover also Ying Yuqi to match setting.
Embodiment two: composition graphs 1, Fig. 8 and Fig. 9 illustrate present embodiment, the thickness of arm-tie 5 is less than 7mm.Design like this, ensures that arm-tie can be placed between impeller and pump section smoothly.Other composition is identical with embodiment one with annexation.
Embodiment three: composition graphs 3 illustrates present embodiment, land 1 is also processed with along symmetrically arranged two elongated holes 14 of its central axis.Design like this, for the part other axle needing dismantle (as the bearing of various different size, axle sleeve and gear etc.), the top cover of replaceable and corresponding axle head diametric fit, leading screw can be placed arbitrarily in the elongated hole on land, can adapt to dismantle other parts on shaft, make this disassembling puller versatility larger, Security is higher, for saving part value and removal efficiency improve greatly.Other composition is identical with embodiment one or two with annexation.
Embodiment four: composition graphs 1 and Fig. 5 illustrate present embodiment, jackscrew 2 inside, top is processed with shoulder hole.Design like this, the major diameter nose end of top jackscrew contacts with top cover, the intensity of top jackscrew when smaller diameter end ensures to attack.Other composition is identical with embodiment three with annexation.
Embodiment five: composition graphs 1 ~ 2, Figure 14 ~ 16 illustrate present embodiment, the machinery for impeller and balance plate dismounting of present embodiment draws horse also to comprise to be successively set on bearing base 15, bearing 16 and bearing cushion cover 17 bottom cylindrical shape one end of top cover 3, and bearing cushion cover 17 is between bearing 16 and pump shaft axle head.Design like this, top jackscrew when attacking, reduces the frictional force with axle head, more time saving and energy saving during to make dismounting part.Other composition and annexation and embodiment one, two or four identical.
Embodiment six: composition graphs 1 ~ 2, Figure 14 ~ 16 illustrate present embodiment, and the diameter of pump shaft axial end is less than the diameter of bearing cushion cover 17 and bearing 16.Design like this, avoids axle head to contact with the direct of top cover, reduces friction further.Other composition is identical with embodiment five with annexation.
Embodiment seven: composition graphs 1 ~ 2, Figure 14 ~ 16 illustrate present embodiment, and described bearing 16 is angular contact ball bearing.Design like this, can prevent top cover and axle from offseting when top jackscrew is attacked.Other composition is identical with embodiment six with annexation.
Embodiment eight: composition graphs 1 illustrates present embodiment, is provided with pad 18 between the first locking nut 7 and one stage impeller 100, and the end face contacted with one stage impeller 100 of described pad 18 is processed as non slip surface.Design like this, utilizes the skid resistance of pad itself, strengthens the dynamics of locking, can make the first locking nut and La Ma impeller locking effectively.Other composition and annexation and embodiment one, two, four, six or seven identical.
Claims (8)
1. the machinery for impeller and balance plate dismounting draws horse, it is characterized in that: comprise land (1), top jackscrew (2), top cover (3), two impeller disassembling devices and two the second leading screws (4),
Each impeller disassembling device comprises arm-tie (5), connecting bolt (6), first locking nut (7), attaching nut (8), first leading screw (9) and the second locking nut (10), two impeller disassembling devices are symmetrical arranged about the central axis of impeller, arm-tie (5) is positioned between one stage impeller (100) and primary pump section (101), connecting bolt (6) is positioned at the cylindrical place of one stage impeller (100), one end of connecting bolt (6) is threaded with arm-tie (5), one end face of arm-tie (5) and one stage impeller (100) is by being arranged on the first locking nut (7) close contact on connecting bolt (6), it is affixed that attaching nut (8) is passed through in the other end of connecting bolt (6) and one end of the first leading screw (9), the other end of the first leading screw (9) is installed on land (1) and goes up and pass through the second locking nut (10) locking,
Top cover (3) is cylindrical section, one end of top cover (3) is processed with shoulder, the other end of top cover (3) is drum-shaped and is sleeved on one end of axle on multistage pump, top jackscrew (2) is externally threaded columnar structured for being processed with, one end of top jackscrew (2) and the one end fits being processed with shoulder of top cover (3), top jackscrew (2) is installed on the central position of land (1) and is threaded with land (1), the other end of top jackscrew (2) is processed with radial direction through hole (11), hinge rod (12) is installed in radial direction through hole (11),
Two the second leading screws (4) are symmetrical arranged about the central axis of balance plate (102), and each balance plate (102) and land (1) are locked by the second leading screw (4) and the 3rd locking nut (13).
2. the machinery for impeller and balance plate dismounting according to claim 1 draws horse, it is characterized in that: the thickness of arm-tie (5) is less than 7mm.
3. the machinery for impeller and balance plate dismounting according to claim 1 and 2 draws horse, it is characterized in that: land (1) is also processed with along symmetrically arranged two elongated holes (14) of its central axis.
4. the machinery for impeller and balance plate dismounting according to claim 3 draws horse, it is characterized in that: jackscrew (2) inside, top is processed with shoulder hole.
5. the machinery for impeller and balance plate dismounting according to claim 1,2 or 4 draws horse, it is characterized in that: bearing base (15), bearing (16) and bearing cushion cover (17) bottom the cylindrical shape one end of drawing horse also to comprise to be successively set on top cover (3) for the machinery of impeller and balance plate dismounting, bearing cushion cover (17) is positioned between bearing (16) and pump shaft axle head.
6. draw horse according to the machinery for impeller and balance plate dismounting according to claim 5, it is characterized in that: the diameter of pump shaft axial end is less than the diameter of bearing cushion cover (17) and bearing (16).
7. the machinery for impeller and balance plate dismounting according to claim 6 draws horse, it is characterized in that: described bearing (16) is angular contact ball bearing.
8. the machinery for impeller and balance plate dismounting according to claim 1,2,4,6 or 7 draws horse, it is characterized in that: be provided with pad (18) between the first locking nut (7) and one stage impeller (100), the end face contacted with one stage impeller (100) of described pad (18) is processed as non slip surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035587.9A CN105508306A (en) | 2016-01-19 | 2016-01-19 | Mechanical puller for disassembling impellers and balance plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035587.9A CN105508306A (en) | 2016-01-19 | 2016-01-19 | Mechanical puller for disassembling impellers and balance plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105508306A true CN105508306A (en) | 2016-04-20 |
Family
ID=55716531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610035587.9A Pending CN105508306A (en) | 2016-01-19 | 2016-01-19 | Mechanical puller for disassembling impellers and balance plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105508306A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900960A (en) * | 2017-10-12 | 2018-04-13 | 许继电气股份有限公司 | A kind of capacitor group more changing device |
| CN116551628A (en) * | 2023-07-11 | 2023-08-08 | 鸿陆智能科技(山东)有限公司 | Magnetic suspension blower impeller dismounting device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2953846A (en) * | 1957-11-18 | 1960-09-27 | Dewey A Wagner | Drawing device |
| SU1737158A1 (en) * | 1990-01-02 | 1992-05-30 | Ново-Бакинский Нефтеперерабатывающий Завод Им.Владимира Ильича | Device for assembling and disassembling of large-sized centrifugal pump impeller on shaft |
| CN103122875A (en) * | 2013-03-15 | 2013-05-29 | 金川集团股份有限公司 | Impeller hub dismounting device |
| CN203077197U (en) * | 2012-12-18 | 2013-07-24 | 中国石油天然气股份有限公司 | Withdrawal tool for belt pulley and impeller |
| CN203779435U (en) * | 2014-03-24 | 2014-08-20 | 瓮福（集团）有限责任公司 | Quick disassembling device for multi-stage pump shaft sleeve |
| CN104723269A (en) * | 2015-04-10 | 2015-06-24 | 攀钢集团工程技术有限公司 | Detaching tool and method for carbon ring seal pressing plate of centrifugal compressor |
| CN204716630U (en) * | 2015-06-03 | 2015-10-21 | 金堆城钼业股份有限公司 | A kind of pump impeller extracting tool |
| CN205298081U (en) * | 2016-01-19 | 2016-06-08 | 中煤能源黑龙江煤化工有限公司 | A mechanically draw horse that is used for impeller and balance plate to dismantle |
-
2016
- 2016-01-19 CN CN201610035587.9A patent/CN105508306A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2953846A (en) * | 1957-11-18 | 1960-09-27 | Dewey A Wagner | Drawing device |
| SU1737158A1 (en) * | 1990-01-02 | 1992-05-30 | Ново-Бакинский Нефтеперерабатывающий Завод Им.Владимира Ильича | Device for assembling and disassembling of large-sized centrifugal pump impeller on shaft |
| CN203077197U (en) * | 2012-12-18 | 2013-07-24 | 中国石油天然气股份有限公司 | Withdrawal tool for belt pulley and impeller |
| CN103122875A (en) * | 2013-03-15 | 2013-05-29 | 金川集团股份有限公司 | Impeller hub dismounting device |
| CN203779435U (en) * | 2014-03-24 | 2014-08-20 | 瓮福（集团）有限责任公司 | Quick disassembling device for multi-stage pump shaft sleeve |
| CN104723269A (en) * | 2015-04-10 | 2015-06-24 | 攀钢集团工程技术有限公司 | Detaching tool and method for carbon ring seal pressing plate of centrifugal compressor |
| CN204716630U (en) * | 2015-06-03 | 2015-10-21 | 金堆城钼业股份有限公司 | A kind of pump impeller extracting tool |
| CN205298081U (en) * | 2016-01-19 | 2016-06-08 | 中煤能源黑龙江煤化工有限公司 | A mechanically draw horse that is used for impeller and balance plate to dismantle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900960A (en) * | 2017-10-12 | 2018-04-13 | 许继电气股份有限公司 | A kind of capacitor group more changing device |
| CN116551628A (en) * | 2023-07-11 | 2023-08-08 | 鸿陆智能科技(山东)有限公司 | Magnetic suspension blower impeller dismounting device |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20180601 |
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| AD01 | Patent right deemed abandoned |