CN203962498U - The attaching/detaching apparatus of attaching/detaching apparatus and pneumatic pump stator - Google Patents
The attaching/detaching apparatus of attaching/detaching apparatus and pneumatic pump stator Download PDFInfo
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- CN203962498U CN203962498U CN201420278945.5U CN201420278945U CN203962498U CN 203962498 U CN203962498 U CN 203962498U CN 201420278945 U CN201420278945 U CN 201420278945U CN 203962498 U CN203962498 U CN 203962498U
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- screw mandrel
- detaching apparatus
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Abstract
The utility model provides a kind of attaching/detaching apparatus, comprises lateral frame, support post, screw mandrel, handwheel and fixed tray; Described support post first end is provided with installs positioning part, and the second end with respect to described first end on described support post is connected in described lateral frame, and described fixed tray is provided with guiding short tube; Described lateral frame is provided with through hole, and described handwheel comprises with the joint of described through hole adaptation, is connected in the abutting part away from described lateral frame one end on described joint, is arranged in described joint and the first tapped hole with described screw mandrel adaptation; Described joint inserts after described through hole, and described handwheel is around the axial-rotation of described through hole, and described lateral frame is connected to described abutting part.The utility model also provides a kind of attaching/detaching apparatus of pneumatic pump stator, comprises above-mentioned attaching/detaching apparatus.Adopt the utility model to compare repair method in the past and greatly simplify, optimized maintenance craft.
Description
Technical field
The utility model relates to a kind of attaching/detaching apparatus, relates in particular to a kind of stator attaching/detaching apparatus of auxiliary water feeding pneumatic pump in nuclear power station.
Background technique
In the hydraulic part of the auxiliary feedwater pneumatic pump of nuclear power plant, the pump side of auxiliary feedwater pneumatic pump comprises the parts such as the pump housing, pump cover, one-level impeller, stator, sencond stage impeller.Its stator is positioned at pump body, and circumferencial direction seals by one O type circle, will dismantle the hydraulic part of pump in the time of its full inspection, comprises above-mentioned stator parts.Because stator is at pump body and there is O type circle sealing, it is tighter that the compression of O type circle causes stator to coordinate with pump housing inner peripheral surface, and stator is without significantly point of application of force and hanging point and weight are heavier, so be difficult to dismantle and installation.The problem that is difficult to dismounting and installs for solving above-mentioned stator, is necessary to design a kind of special stator attaching/detaching apparatus, dismounting stator easily.
Model utility content
For a kind of stator dismounting device of simple and effective is provided, Optimal Maintenance technique, shortens the repair time, and the utility model provides a kind of attaching/detaching apparatus, comprises lateral frame, support post, screw mandrel, handwheel and fixed tray; Described support post first end is provided with installs positioning part, and the second end with respect to described first end on described support post is connected in described lateral frame, and described fixed tray is provided with guiding short tube; Described lateral frame is provided with through hole, and described handwheel comprises with the joint of described through hole adaptation, is connected in the abutting part away from described lateral frame one end on described joint, is arranged in described joint and the first tapped hole with described screw mandrel adaptation; Described joint inserts after described through hole, and described handwheel is around the axial-rotation of described through hole, and described lateral frame is connected to described abutting part; One end of described screw mandrel is slidably connected with described through hole through after described the first tapped hole, the other end of described screw mandrel is connected with described guiding short tube, and described handwheel drives described fixed tray advance or retreat by described the first tapped hole with being threaded of described screw mandrel.
As further improvement of the utility model, described installation positioning part is the second tapped hole; Described support post is more than two.
As further improvement of the utility model, one end that described support post connects described lateral frame is provided with bolt hole, and described lateral frame is provided with installation slotted eye, and described bolt hole and described installation slotted eye are connected by screw.
As further improvement of the utility model, described through hole is counter sink, and the two ends of described counter sink are equipped with setting circle anchor ring; Described installation slotted eye surrounding is provided with locating slot.
As further improvement of the utility model, described fixed tray comprises the fixed tray attachment hole that radially arranges along described guiding short tube, radially arranges and the trepanning that communicates with described fixed tray attachment hole, the disk body vertical with described guiding short tube, be arranged at the mounting hole on described disk body along described guiding short tube, described trepanning and described screw mandrel adaptation, described screw mandrel is provided with screw mandrel attachment hole, described screw mandrel inserts after described trepanning, and described fixed tray attachment hole and described screw mandrel attachment hole are bolted.
As further improvement of the utility model, described fixed tray also comprises stiffening rib, and described guiding short tube is welded on described disk body by described stiffening rib.
As further improvement of the utility model, described fixed tray also comprises the suspension ring that are arranged on described disk body.
As further improvement of the utility model, described handwheel comprises the hand lever being arranged on described abutting part.
As further improvement of the utility model, described handwheel is arranged on described lateral frame the side referring to away from described fixed tray; Or described handwheel is arranged between described lateral frame and described fixed tray.
The utility model also provides a kind of attaching/detaching apparatus of pneumatic pump stator, and it comprises attaching/detaching apparatus described above.
The beneficial effects of the utility model are:
The utility model provides a kind of nuclear power plant auxiliary feedwater pneumatic pump stator attaching/detaching apparatus, adopt this device can make the dismounting of stator and installation become easier, increase work efficiency, this device design has from the anti-deflection function of centering, can effectively prevent from dismounting and installation process scraping because of what stator deflection occurred the ring of wearing.The utility model is provided with the convenient handling in maintenance process of suspension ring on fixed tray.Adopt the utility model to compare repair method in the past and greatly simplify, optimized maintenance craft.
Brief description of the drawings
Fig. 1 is the utility model attaching/detaching apparatus one embodiment's perspective view;
Fig. 2 is the partial sectional view of the utility model attaching/detaching apparatus;
Fig. 3 is the enlarged view of Z part in Fig. 2;
Fig. 4 is the utility model lateral frame one embodiment's structural representation;
Fig. 5 is the utility model support post one embodiment's structural representation;
Fig. 6 is the utility model screw mandrel one embodiment's structural representation;
Fig. 7 is the utility model handwheel one embodiment's structural representation;
Fig. 8 is the utility model fixed tray one embodiment's structural representation;
Fig. 9 is the three-dimensional structure diagram of attaching/detaching apparatus shown in Fig. 1 while being applied to the dismounting of pneumatic pump stator.
In figure, each component names is as follows: lateral frame 10, through hole 11, setting circle anchor ring 111, slotted eye 12 is installed, locating slot 121, support post 20, cylinder 21, positioning part 22 is installed, bolt hole 23, end face 231, chamfering 24, bolt 251, packing ring 252, screw mandrel 30, screw mandrel attachment hole 31, threaded end 32, connecting end 33, handwheel 40, hand lever 41, joint 42, the first tapped hole 43, abutting part 44, fixed tray 50, fixed tray attachment hole 51, mounting hole 52, trepanning 53, guiding short tube 54, disk body 55, stiffening rib 56, suspension ring 57, suspension ring mounting hole 58, nut 591, bolt 592.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
The utility model provides a kind of attaching/detaching apparatus, can be applicable to the maintenance of nuclear power plant's auxiliary feedwater pneumatic pump, is particularly useful for the installation and removal of pneumatic pump stator.As Fig. 1, Fig. 1 is the utility model attaching/detaching apparatus one embodiment's perspective view; The present embodiment attaching/detaching apparatus comprises lateral frame 10, support post 20, screw mandrel 30, handwheel 40 and fixed tray 50; Support post 20 first ends are provided with installs positioning part 22, and the second end with respect to first end on support post 20 is connected in lateral frame 10, and fixed tray 50 is provided with guiding short tube 54; Lateral frame 10 is provided with through hole 11, and handwheel 40 comprises with the joint 42 of through hole 11 adaptations, is connected in the abutting part 44 away from lateral frame 10 one end on joint 42, is arranged in joint 42 and the first tapped hole 43 with screw mandrel 30 adaptations; Joint 42 inserts after through hole 11, and handwheel 40 is around the axial-rotation of through hole 11, and lateral frame 10 is connected to abutting part 44; The first tapped hole 43 is passed afterwards in one end of screw mandrel 30 and through hole 11 is slidably connected, and the other end of screw mandrel 30 is connected with guiding short tube 54, and handwheel 40 drives fixed tray 50 advance or retreat by the first tapped hole 43 with being threaded of screw mandrel 30.In the utility model, the shape of handwheel 40 be not limited to into the shape shown in Fig. 1 (such as, can be also discoid), as long as can play the effect identical with handwheel in the present embodiment 40.
When stator is installed, towards pump side, rotate counterclockwise handwheel 40, screw mandrel 30 just advances to pump side, and the thrust of screw mandrel 30 passes to stator by fixed tray 50, and stator is moved in pump, is finally in place.When dismounting stator, clockwise rotate handwheel 40, screw mandrel 30 is pulled outwardly, the pulling force of screw mandrel 30 passes to stator by bolt 592 and fixed tray 50, and stator is pulled out.In the present embodiment, rotate counterclockwise handwheel 40, screw mandrel 30 just advances to pump side, clockwise rotates handwheel 40, and screw mandrel 30 is outwards screwed out; But in the utility model, advancing or retreating of screw mandrel 30 is that positive and negative cooperation according to its screw thread is carried out, and therefore only need to change the positive and negative setting of screw thread, and the sense of rotation of handwheel 40 also can be changed thereupon, and unloading process in like manner.
Adopt this device can make the dismounting of stator and installation become easier, increase work efficiency, adopt the utility model to compare repair method in the past and greatly simplify, optimized maintenance craft.Further, as shown in Figures 2 to 5, Fig. 2 is the partial sectional view of the utility model attaching/detaching apparatus; Fig. 3 is the enlarged view of Z part in Fig. 2; Fig. 4 is the utility model lateral frame one embodiment's structural representation; Fig. 5 is the utility model support post one embodiment's structural representation; The installation positioning part 22 of the first end of support post 20 is the second tapped hole, and one end that support post 20 connects lateral frame 10 is provided with bolt hole 23, and lateral frame 10 is provided with installs slotted eye 12, and bolt hole 23 is connected by screw with installation slotted eye 12.On support post 20, be also provided with chamfering 24, chamfering 24 is arranged on one end near the second tapped hole 22 on cylinder 21, support post 20 is more than two, certainly, in the utility model, by support post 20 shown in Fig. 1 be set to one also can, as long as can reach, attaching/detaching apparatus is fixed on and is treated on attaching/detaching apparatus.The second tapped hole 22 is for being arranged on pump end face double-screw bolt, and bolt hole 23 and chamfering 24 are for installing lateral frame.
As shown in Figure 2, support post 20 is arranged on pump body end surface double-screw bolt, and lateral frame 10 is arranged on two support posts.Bolt 251 is connected lateral frame 10 by packing ring 252 with support post 20 second ends.In embodiment shown in Fig. 1, support post 20 is preferably two, meets on the one hand fixing requirement, on the other hand, reaches saving material effects.If consider from the angle that supported at three point steadiness is higher, support post 20 also can adopt three.
Further, as shown in Fig. 2 to Fig. 8, Fig. 6 is the utility model screw mandrel one embodiment's structural representation; Fig. 7 is the utility model handwheel one embodiment's structural representation; Fig. 8 is the utility model fixed tray one embodiment's structural representation, fixed tray 50 comprise along the fixed tray attachment hole 51 that radially arranges of guiding short tube 54, along guiding short tube 54 radially arrange and the trepanning 53 that communicates with fixed tray attachment hole 51, with the vertical disk body 55 of short tube 54 that leads, be arranged at the mounting hole 52 on disk body 55, trepanning 53 and screw mandrel 30 adaptations, screw mandrel 30 is provided with screw mandrel attachment hole 31, screw mandrel 30 inserts after trepanning 53, and fixed tray attachment hole 51 is bolted with screw mandrel attachment hole 31.Mounting hole 52 is for being fixed on stator by fixed tray 50, screw mandrel 30 inserts after guiding short tube 54, screw mandrel attachment hole 31 and fixed tray attachment hole 51 just to and communicate, now can, by bolt 592 through screw mandrel attachment hole 31 and fixed tray attachment hole 51, by bolt 592 and nut 591, screw mandrel 30 and guiding short tube 54 be fixed together.As shown in Figure 6, screw mandrel 30 one end connect guiding short tube 54 by connecting end 33, and the other end is and the adaptive threaded end 32 being connected of described the first tapped hole 43.
Further, fixed tray 50 also comprises the suspension ring 57 that are arranged on disk body 55.Suspension ring 57 on disk body 55 are for mounting hanger, and suspension ring 57 are arranged on disk body 55 by suspension ring mounting hole 58.On fixed tray 50, be provided with the convenient handling in maintenance process of suspension ring 57.
Further, described fixed tray 50 also comprises stiffening rib 56, and described guiding short tube 54 is welded on described disk body 55 by described stiffening rib 56.
As shown in Figure 4, in the present embodiment, through hole 11 is counter sink, and the two ends of counter sink are equipped with setting circle anchor ring 111; Slotted eye 12 surroundings are installed and are provided with locating slot 121.Bolt, through after the installation slotted eye 12 at lateral frame 10 two ends, is fixed on lateral frame 10 on the tapped hole 23 of support post 20, and locating slot 121 can position and prevent that bolt is at the upper and lower upward sliding shown in Fig. 1 to bolt.
As shown in Figure 7, handwheel 40 also comprises the hand lever 41 being arranged on abutting part 44.And handwheel 40 is arranged on lateral frame 10 side referring to away from fixed tray 50; Or handwheel 40 is arranged between lateral frame 10 and fixed tray 50.
The utility model also provides a kind of attaching/detaching apparatus of pneumatic pump stator, and it comprises above-mentioned attaching/detaching apparatus.The attaching/detaching apparatus of the pneumatic pump stator of the present embodiment is applied to above-mentioned attaching/detaching apparatus in the dismounting of pneumatic pump stator, but the utility model is not limited to above application, as long as meeting dismounting condition of the present utility model, above-mentioned attaching/detaching apparatus can also be applied to other similar parts need to being carried out in the situation of dismounting.
Principle of the present utility model is as follows:
Pneumatic pump stator attaching/detaching apparatus of the present utility model, drives screw mandrel 30 advance or retreat by rotating handwheel 40, and the thrust of screw mandrel 30 or pulling force are applied on stator by fixed tray 50, and then realize the installation and removal of stator.Be provided with guiding short tube 54 at the front end of fixed tray 50, on handwheel 40, also there is the step location of matching with the toroidal surface on lateral frame 10, the slotted eye at lateral frame 10 two ends has the concentric effect regulating with the guiding short tube 54 of fixed tray 50, in installing and dismantling stator process, keep the axle center of stator concentric with pump inner cylindrical surface thereby realize, avoid the scraping damage bringing because of stator decentraction.
The utility model is as follows to the installation method of stator:
As shown in Fig. 2 to Fig. 9, Fig. 9 is the three-dimensional structure diagram of attaching/detaching apparatus shown in Fig. 1 while being applied to the dismounting of pneumatic pump stator; In nuclear power generating sets, the pump side of auxiliary feedwater pneumatic pump comprises the parts such as the pump housing, pump cover, one-level impeller, stator, sencond stage impeller, stator to be installed installing after sencond stage impeller, in the time that being installed, stator first fixed tray 50 use bolts are arranged on stator, and suspender belt is penetrated to suspension ring 57, stator, fixed tray assembly are sling and inserted pump housing installation position; The threaded end of screw mandrel 30 32 is screwed in the first tapped hole 43 of handwheel 40, the second tapped hole 22 of two support posts 20 is screwed on the double-screw bolt of pump end face, then handwheel 40, screw mandrel 30 assemblies are worn in the counter sink of lateral frame 10, and make handwheel 40 between the connecting end 33 and lateral frame 10 of screw mandrel 30; Handwheel 40, screw mandrel 30 and lateral frame 10 assemblies are installed on two support posts 20, note the locating slot of lateral frame 10 121 being aimed to the end face 231 of support post and the connecting end of screw mandrel 30 33 being penetrated in the guiding short tube 54 of fixed tray 50 front ends, adjust that screw mandrel 30 angles make screw mandrel attachment hole 31 and fixed tray attachment hole 51 with one heart and bolt, nut are fixedly connected with; Laterally adjusting lateral frame 10 makes the joint 42 of handwheel 40 (in embodiment illustrated in fig. 1, joint 42 is boss) be just positioned on the setting circle anchor ring 111 of lateral frame 10, then lateral frame 10 is fixed on support post 20 by the bolt hole 23 of support post with bolt.Towards pump side, rotate counterclockwise handwheel 40, screw mandrel 30 just advances to pump side, and the thrust of screw mandrel 30 passes to stator by fixed tray 50, and stator is moved in pump, is finally in place.
Use demounting procedure and the installation steps of the utility model to stator similar, when difference is to dismantle, handwheel 40 to be arranged on to outside, and clockwise rotate handwheel 40, screw mandrel 30 is pulled outwardly, the pulling force of screw mandrel 30 passes to stator by bolt 592 and fixed tray 50, and stator is pulled out.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. an attaching/detaching apparatus, is characterized in that: comprise lateral frame (10), support post (20), screw mandrel (30), handwheel (40) and fixed tray (50); Described support post (20) first end is provided with installs positioning part (22), and described support post (20) is upper is connected in described lateral frame (10) with respect to the second end of described first end, and described fixed tray (50) is provided with guiding short tube (54); Described lateral frame (10) is provided with through hole (11), and described handwheel (40) comprises the joint (42) adaptive with described through hole (11), is connected in the upper abutting part (44) away from described lateral frame (10) one end of described joint (42), is arranged in described joint (42) and first tapped hole (43) adaptive with described screw mandrel (30); Described joint (42) inserts after described through hole (11), and described handwheel (40) is around the axial-rotation of described through hole (11), and described lateral frame (10) is connected to described abutting part (44); One end of described screw mandrel (30) is through being slidably connected with described through hole (11) after described the first tapped hole (43), the other end of described screw mandrel (30) is connected with described guiding short tube (54), and described handwheel (40) drives described fixed tray (50) advance or retreat by described the first tapped hole (43) with being threaded of described screw mandrel (30).
2. attaching/detaching apparatus according to claim 1, is characterized in that: described installation positioning part (22) is the second tapped hole; Described support post (20) is more than two.
3. attaching/detaching apparatus according to claim 1, it is characterized in that: one end that described support post (20) connects described lateral frame (10) is provided with bolt hole (23), described lateral frame (10) is provided with installs slotted eye (12), and described bolt hole (23) is connected by screw with described installation slotted eye (12).
4. attaching/detaching apparatus according to claim 1, is characterized in that: described through hole (11) is counter sink, and the two ends of described counter sink are equipped with setting circle anchor ring (111); Described installation slotted eye (12) surrounding is provided with locating slot (121).
5. attaching/detaching apparatus according to claim 1, it is characterized in that: described fixed tray (50) comprises the fixed tray attachment hole (51) radially arranging along described guiding short tube (54), the trepanning (53) that radially arranges and communicate with described fixed tray attachment hole (51) along described guiding short tube (54), the disk body (55) vertical with described guiding short tube (54), be arranged at the mounting hole (52) on described disk body (55), described trepanning (53) and described screw mandrel (30) adaptation, described screw mandrel (30) is provided with screw mandrel attachment hole (31), described screw mandrel (30) inserts after described trepanning (53), described fixed tray attachment hole (51) is bolted with described screw mandrel attachment hole (31).
6. attaching/detaching apparatus according to claim 5, is characterized in that: described fixed tray (50) also comprises stiffening rib (56), and described guiding short tube (54) is welded on described disk body (55) by described stiffening rib (56).
7. attaching/detaching apparatus according to claim 5, is characterized in that: described fixed tray (50) also comprises the suspension ring (57) that are arranged on described disk body (55).
8. attaching/detaching apparatus according to claim 1, is characterized in that: described handwheel (40) comprises the hand lever (41) being arranged on described abutting part (44).
9. attaching/detaching apparatus according to claim 1, is characterized in that: described handwheel (40) is arranged on described lateral frame (10) and above refers to the side away from described fixed tray (50); Or described handwheel (40) is arranged between described lateral frame (10) and described fixed tray (50).
10. an attaching/detaching apparatus for pneumatic pump stator, is characterized in that: comprise the attaching/detaching apparatus described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420278945.5U CN203962498U (en) | 2014-05-28 | 2014-05-28 | The attaching/detaching apparatus of attaching/detaching apparatus and pneumatic pump stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420278945.5U CN203962498U (en) | 2014-05-28 | 2014-05-28 | The attaching/detaching apparatus of attaching/detaching apparatus and pneumatic pump stator |
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| Publication Number | Publication Date |
|---|---|
| CN203962498U true CN203962498U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420278945.5U Active CN203962498U (en) | 2014-05-28 | 2014-05-28 | The attaching/detaching apparatus of attaching/detaching apparatus and pneumatic pump stator |
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| CN (1) | CN203962498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545823A (en) * | 2015-12-31 | 2016-05-04 | 江苏杰尔科技股份有限公司 | Dismounting and mounting tool for single-stage centrifugal fan high-speed rotor |
-
2014
- 2014-05-28 CN CN201420278945.5U patent/CN203962498U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545823A (en) * | 2015-12-31 | 2016-05-04 | 江苏杰尔科技股份有限公司 | Dismounting and mounting tool for single-stage centrifugal fan high-speed rotor |
| CN105545823B (en) * | 2015-12-31 | 2018-02-16 | 江苏杰尔科技股份有限公司 | A kind of one-stage centrifugal blower fan high speed rotor dismounts frock |
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