CN218698416U - Auxiliary device for disassembling stator and rotor of single-screw pump - Google Patents
Auxiliary device for disassembling stator and rotor of single-screw pump Download PDFInfo
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- CN218698416U CN218698416U CN202222436981.7U CN202222436981U CN218698416U CN 218698416 U CN218698416 U CN 218698416U CN 202222436981 U CN202222436981 U CN 202222436981U CN 218698416 U CN218698416 U CN 218698416U
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- 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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model relates to a screw pump technical field, in particular to auxiliary device is dismantled to single-screw pump stator-rotor, including the base and by lower supreme perpendicular set up in the lower mounting panel and the last mounting panel of base top, lower mounting panel with the base is connected, go up the mounting panel and can dismantle with lower mounting panel and be connected, the last fixed slot and the lower fixed slot of semicircular structure have been seted up relatively to last mounting panel bottom and lower mounting panel top, go up the fixed slot and form the stator fixed orifices with lower fixed slot butt joint, lower mounting panel and/or the pull rod spacing groove has been seted up to last mounting panel. The upper mounting plate and the lower mounting plate are in open-close butt joint with the outer side of the single-screw pump stator, the stator penetrates through the stator fixing hole, the pull rod is inserted in the pull rod limiting groove, so that the rotation of the stator is limited, the stator is effectively supported, the stator and the rotor can axially move through the rotor meshed with the stator in a rotating mode, and the stator is disassembled and assembled.
Description
Technical Field
The utility model relates to a screw pump technical field, more specifically say, in particular to auxiliary device is dismantled to single-screw pump stator-rotor.
Background
The closed discharge pump is a single-screw pump and mainly used for pumping oily sewage in the closed discharge tank to a crude oil manifold. The power of the single-screw pump drives the reduction gearbox, the bearing box and the universal coupling to be transmitted to the rotor (screw) through the motor, and liquid is extracted through the meshing between the rotor and the stator. The single-screw pump is better as closing row pump overall result of use, but because it is big to close row pump conveying medium viscosity, impurity is many, the condition that single-screw pump stator or rotor damaged can appear often, can lead to universal joint to damage when serious, and then leads to bearing box bearing to damage or bearing box crackle, produces very big vibration and abnormal sound, seriously influences the use of pump. The single-screw pump rotor disassembly and inspection process comprises the steps of disassembling the motor, the reduction gearbox, the bearing box and the universal coupling, and finally disassembling and separating the rotor and the stator for maintenance.
Rotor and stator have following several aspects problems in dismantling the disengaging process, have increased the operation degree of difficulty, seriously influence the operation progress: (1) The stator is not reliably supported in the dismounting process, a sleeper is usually placed on the pull rod to support when the stator is dismounted in the past, but the pull rod is easy to bend and deform due to the large weight of the stator, the left-right swinging freedom degree of the stator cannot be effectively restricted in the dismounting process, the universal joint rubber sheath is easy to damage, the universal joint sealing oil leakage is caused, and the abrasion damage of the universal joint is accelerated; (2) The screw pump stator is a smooth cylinder and is difficult to rotate and fix, chain tongs are used for fixing the stator in the traditional maintenance process, the screw pump stator is easy to slip, and particularly when the stator is damaged or foreign matters are clamped in front of the stator and the rotor, the resistance is very large, the surface of the stator can be damaged, the maintenance time is longer, and the operation efficiency is seriously influenced; (3) The traditional dismounting method needs to fix the stator by a plurality of sets of heavy chain tongs, pull the stator in the screwing-out direction by 3-4 chain blocks, needs 3 persons to cooperate and cooperate at the same time, and normally needs 3 days to finish the dismounting process of the stator and the rotor.
For solving above-mentioned problem, the utility model patent of the grant bulletin number CN216030438U discloses a single screw pump stator dismouting structure, it is through setting up the metal outer tube, the relative position punishment in the outside of metal outer tube has the installation piece respectively welded, be provided with the screw hole on the installation piece, threaded hole can dismantle and be connected with the screw rod, and set up the U-shaped on the dismouting platform of stator below and prevent the swivel mount, the one end of screw rod is passed and is prevented that the screw thread on the swivel mount back links to each other with the screw hole on the installation piece that corresponds, thereby it is fixed with the stator, realize the dismantlement change of stator. The installation block is directly welded on the outer side of the metal outer pipe (stator), and when the stator and the rotor of different single-screw pumps are disassembled, the installation block needs to be welded in advance, so that the installation operation is complex, and the installation block cannot be repeatedly used on different single-screw pumps.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing one kind and dismantles the in-process at single-screw pump stator-rotor, can carry out effectual fixed and support to the stator to realize the dismantlement of stator and change, and simple structure can used repeatedly's single-screw pump stator-rotor dismantlement auxiliary device.
The utility model discloses a single screw pump stator-rotor dismantles auxiliary device is based on, and on the current structure's of pull rod basis was provided with in the current single screw pump stator outside, concrete technical scheme was:
the utility model provides a single-screw pump stator-rotor dismantles auxiliary device, includes the base and by lower supreme perpendicular set up in lower mounting panel and the last mounting panel of base top, lower mounting panel with the base is connected, go up the mounting panel and can dismantle with lower mounting panel and be connected, go up the mounting panel bottom and down the mounting panel top and set up semicircular structure's last fixed slot and lower fixed slot relatively, go up the fixed slot and dock with lower fixed slot and form the stator fixed orifices, the mounting panel down and/or the pull rod spacing groove has been seted up to last mounting panel. The upper mounting plate and the lower mounting plate are in open-close butt joint with the outer side of the single-screw pump stator, the stator penetrates through the stator fixing hole, and the pull rod is inserted in the pull rod limiting groove.
Further, the inner diameter of the stator fixing hole is equal to the outer diameter of the stator.
Furthermore, the width of the inner side of the pull rod limiting groove is equal to the outer diameter of the pull rod.
Furthermore, an insertion rod is vertically arranged at the top of the lower mounting plate and outside the pull rod limiting groove, sleeves matched with the insertion rod are fixedly arranged on two sides of the upper mounting plate, and the insertion rod is inserted into the sleeves and provided with a fixing mechanism.
Furthermore, the upper end and the lower end of the sleeve are opened, the length of the inserted rod is greater than that of the sleeve, and the top of the inserted rod is provided with an external thread;
the fixing mechanism is a threaded cap, and the threaded cap is in threaded connection with the top of the inserted rod.
Furthermore, a U-shaped clamping plate is fixedly arranged in the middle of the upper end face of the base and provided with two ends and an upper opening slot, and the bottom of the lower mounting plate is inserted into the slot and fixedly connected with the U-shaped clamping plate.
Furthermore, the fixing device also comprises reinforcing ribs, wherein the reinforcing ribs are symmetrically arranged on two sides of the upper fixing groove and fixedly connected with the upper mounting plate.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a single screw pump stator-rotor dismantles auxiliary device, through setting up the mounting panel, mounting panel and base down, and be provided with stator fixed orifices and pull rod spacing groove, install the device in the single screw pump stator outside, the stator restriction is in the stator fixed orifices, the pull rod restriction is in the pull rod spacing groove, thereby the rotation of restriction stator, it is fixed with the stator, and give the effectual support of stator, through the rotor that moves meshing with it, the stator will produce axial relative motion with the rotor, thereby make the stator leave or accomplish the installation of stator from the rotor, thereby realize the dismouting of stator. The single-screw pump stator and rotor disassembly auxiliary device is an independent device relative to a single-screw pump, has a simple structure and can be repeatedly used in the disassembly work of the single-screw pumps with the same specification.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is an overall structural schematic diagram of a stator-rotor disassembly assisting device of a single-screw pump in an embodiment.
Fig. 2 is another view angle overall structure diagram of the stator-rotor dismounting auxiliary device of the single-screw pump in the embodiment.
FIG. 3 is an exploded view of the single screw pump stator-rotor disassembly aid in accordance with an embodiment.
Fig. 4 is a structural schematic diagram of the non-installed threaded cap of the single-screw pump stator-rotor disassembly assisting device in the embodiment.
Fig. 5 is a schematic view showing a use state of the stator and rotor disassembly assisting device of the single-screw pump in the embodiment (the single-screw pump has only a partial structure).
In the figure: 1. a base; 2. a lower mounting plate; 3. an upper mounting plate; 4. a stator fixing hole; 5. a pull rod limiting groove; 6. inserting a rod; 7. a sleeve; 8. an external thread; 9. a threaded cap; 10. a U-shaped splint; 11. reinforcing ribs; 12. a stator; 13. a pull rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The specific embodiment is as follows:
the utility model discloses an based on, on the basis of the current structure that the current single-screw pump stator outside was provided with the pull rod, provide one kind and dismantle the in-process at single-screw pump stator-rotor, can carry out effectual fixed and support to the stator to realize the dismantlement of stator and change, and simple structure can used repeatedly's single-screw pump stator-rotor dismantlement auxiliary device.
As shown in fig. 1, the auxiliary device for detaching the stator and the rotor of the single-screw pump in the embodiment includes a base 1, a lower mounting plate 2, and an upper mounting plate 3. The base 1 level sets up, and lower mounting panel 2 and last mounting panel 3 set up in base 1 top perpendicularly by supreme down, and lower mounting panel 2 is connected with base 1, goes up mounting panel 3 and lower mounting panel 2 butt joint and can dismantle the connection of opening and shutting. Go up mounting panel 3 bottom and 2 tops of lower mounting panel and seted up fixed slot and lower fixed slot relatively, go up fixed slot and lower fixed slot and all be the semicircular structure. The upper fixing groove and the lower fixing groove are closed to form a stator fixing hole 4, and the inner diameter of the stator fixing hole 4 is the same as the outer diameter of the stator 12.
The utility model discloses in, lower mounting panel 2 and/or last mounting panel 3 have seted up pull rod spacing groove 5, and pull rod spacing groove 5 is rectangular shape vertical setting and the opening is located 2 tops of lower mounting panel or 3 bottoms of last mounting panel, and the inboard width of pull rod spacing groove 5 equals the external diameter of pull rod 13. Specifically, in this embodiment, the lower mounting plate 2 is symmetrically provided with pull rod limiting grooves 5 on both sides of the lower fixing groove, and the distance between the pull rod limiting grooves 5 is matched with the pull rod on the single-screw pump. In some other embodiments, the rod-limiting grooves 5 may be symmetrically disposed on both sides of the upper fixing groove of the upper mounting plate 3, or the rod-limiting grooves 5 may be disposed on both the upper mounting plate 3 and the lower mounting plate 2. When all setting up pull rod spacing groove 5 on last mounting panel 3 and lower mounting panel 2, can all set up a pull rod spacing groove 5 on last mounting panel 3 and lower mounting panel 2, go up 5 diagonal settings in the pull rod spacing groove on mounting panel 3 and the lower mounting panel 2. In practical application, the pull rod limiting grooves 5 are correspondingly arranged according to the number and the positions of the pull rods 13 on the single-screw pump, so that the pull rods 13 are limited in the pull rod limiting grooves 5, the stator 12 is limited in the stator fixing hole 4, the stator 12 is fixed, and the rotation of the stator 12 is limited.
The auxiliary device for disassembling the stator and the rotor of the single-screw pump in the embodiment is characterized in that an upper mounting plate 3, a lower mounting plate 2 and a base 1 are arranged, a stator fixing hole 4 and a pull rod limiting groove 5 are arranged, the device is arranged on the outer side of the stator of the single-screw pump, the stator is limited in the stator fixing hole 4, the pull rod is limited in the pull rod limiting groove 5, the rotation of the stator is limited, the stator is fixed and is effectively supported, the stator and the rotor can move axially relative to each other through a rotor which is meshed with the stator in a rotating mode, the stator and the rotor can separate from each other or the stator can be installed, and therefore the stator can be disassembled and installed. And the single-screw pump stator and rotor disassembly auxiliary device is an independent device relative to the single-screw pump, has simple structure and can be repeatedly used in the disassembly work of the single-screw pumps with the same specification.
In this embodiment, as shown in fig. 3 and 4, an insertion rod 6 is vertically disposed on the top of the lower mounting plate 2 and outside the pull rod limiting groove 5, and the insertion rod 6 is fixedly connected to the lower mounting plate 2. The two sides of the upper mounting plate 3 are fixedly provided with sleeves 7, and the inner diameters of the sleeves 7 are matched with the outer diameters of the insertion rods 6. The insert rod 6 is inserted in the sleeve 7 and is provided with a fixing mechanism.
In this embodiment, the upper and lower both ends of sleeve 7 are open, and the length of inserted bar 6 is greater than the length of sleeve 7, and inserted bar 6 top is provided with external screw thread 8. The fixing mechanism is a threaded cap 9, and the threaded cap 9 is provided with an internal thread matched with the external thread 8. The inserted bar 6 is arranged in the sleeve 7 in a penetrating way, and the top part of the inserted bar penetrates through the sleeve 7 and is in threaded connection with the threaded cap 9, so that the upper mounting plate 3 and the lower mounting plate 2 are reliably connected and fixed.
In another embodiment, the fixing mechanism may also be a telescopic rod, specifically, a groove is radially formed at the top of the insertion rod 6, the telescopic rod is telescopically arranged in the groove, and the telescopic rod is connected with the insertion rod 6 through a spring. During the inserted bar 6 wore to locate sleeve 7, when going up mounting panel 3 and lower mounting panel 2 butt, the telescopic link stretched out and just blocked at sleeve 7 top to it is fixed with lower mounting panel 2 reliable connection to go up mounting panel 3. In other embodiments, the fixing mechanism may be another structure that is connected to the insert rod 6 and can reliably connect and fix the upper mounting plate 3 and the lower mounting plate 2.
In the embodiment, a U-shaped clamping plate 10 is fixedly arranged in the middle of the upper end surface of the base 1, the U-shaped clamping plate 10 is vertically arranged, and the length of the U-shaped clamping plate 10 is equal to or slightly greater than that of the lower mounting plate 2. The U-shaped clamping plate 10 is provided with slots with two ends and an upper opening, the thickness of the lower mounting plate 2 is matched with the slots, and the bottom of the lower mounting plate 2 is slidably inserted into the slots of the U-shaped clamping plate 10 and is fixedly connected with the base 1. The lower mounting plate 2, the U-shaped clamping plate 10 and the base 1 in the embodiment are all made of steel plates or iron plates, and the lower mounting plate 2 is connected with the U-shaped clamping plate 10 in a welding mode or connected through bolts. The U-shaped clamping plate 10 is connected with the base 1 through welding.
The auxiliary device for disassembling the stator and the rotor of the single-screw pump in the embodiment further comprises reinforcing ribs 11. As shown in fig. 2, two reinforcing ribs 11 are symmetrically disposed at both sides of the upper fixing groove and fixedly connected to the upper mounting plate 3. The reinforcing ribs 11 are made of steel plates or iron plates, the upper portions of the reinforcing ribs 11 are of rectangular structures, the lower portions of the reinforcing ribs 11 are of fan-shaped structures, the upper mounting plates 3 are made of the same material as the reinforcing ribs 11, and the reinforcing ribs 11 are welded with the upper mounting plates 3. Through setting up strengthening rib 11, the intensity of mounting panel 3 in the reinforcing effectively prevents in the use, goes up mounting panel 3 atress and warp.
The working principle of the auxiliary device for disassembling the stator and the rotor of the single-screw pump in the embodiment is as follows:
four pull rods which are arranged in a square shape are arranged on the outer side of the single-screw pump stator, as shown in fig. 5, when the single-screw pump stator is used, the two pull rods 13 on the upper portion are firstly disassembled, the fixing nuts at one ends of the two pull rods 13 on the lower portion are disassembled, the base 1 and the lower mounting plate 2 are placed on the ground, the single-screw pump stator 12 is erected in the upper fixing groove of the lower mounting plate 2, meanwhile, the pull rods 13 on the lower portion of the outer side of the single-screw pump stator 12 enter the pull rod limiting grooves 5, the sleeves 7 on the two sides of the upper mounting plate 3 are sleeved on the inserting rods 6, then the threaded caps 9 are screwed, and the upper mounting plate 3 is reliably connected with the lower mounting plate 2. At this moment, the stator 12 is limited in the stator fixing hole 4, the pull rod 13 is limited in the pull rod limiting groove 5, the rotation of the stator 12 can be limited, the degree of freedom of the stator 12 in the radial direction is limited, the base 1 and the lower mounting plate 2 can also effectively support the stator 12, the stator 12 and the rotor can axially move through a rotor which is in rolling engagement with the stator 12, the stator 12 and the disassembly auxiliary device can simultaneously axially move, so that the stator 12 is separated from the rotor, and the disassembly work between the stator and the rotor of the single-screw pump is completed.
In actual use, one disassembly assisting device can be used, and two disassembly assisting devices can be cooperatively used.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a single-screw pump decides rotor and dismantles auxiliary device which characterized in that: including base (1) and by supreme perpendicular set up down in lower mounting panel (2) and last mounting panel (3) of base (1) top, lower mounting panel (2) with base (1) are connected, go up mounting panel (3) and can dismantle with lower mounting panel (2) and be connected, go up mounting panel (3) bottom and down mounting panel (2) top and open relatively and be equipped with semi-circular structure's last fixed slot and lower fixed slot, go up fixed slot and lower fixed slot butt joint and form stator fixed orifices (4), mounting panel (2) and/or pull rod spacing groove (5) have been seted up in last mounting panel (3) down.
2. The single-screw pump stator-rotor disassembly assisting device of claim 1, wherein: the inner diameter of the stator fixing hole (4) is equal to the outer diameter of the stator (12).
3. The single-screw pump stator-rotor disassembly assisting device of claim 1, wherein: the width of the inner side of the pull rod limiting groove (5) is equal to the outer diameter of the pull rod (13).
4. The single-screw pump stator-rotor disassembly assisting device of claim 1, wherein: the lower mounting plate (2) is arranged at the top of the lower mounting plate, an inserting rod (6) is vertically arranged on the outer side of the pull rod limiting groove (5), sleeves (7) matched with the inserting rod (6) are fixedly arranged on two sides of the upper mounting plate (3), and the inserting rod (6) is inserted into the sleeves (7) and is provided with a fixing mechanism.
5. The single-screw pump stator-rotor disassembly assisting device of claim 4, wherein: the upper end and the lower end of the sleeve (7) are opened, the length of the inserted rod (6) is larger than that of the sleeve (7), and the top of the inserted rod (6) is provided with an external thread (8);
the fixing mechanism is a threaded cap (9), and the threaded cap (9) is in threaded connection with the top of the inserted bar (6).
6. The single-screw pump stator-rotor disassembly assisting device of claim 1, wherein: the base (1) up end middle part is fixed and is provided with U type splint (10), U type splint (10) have both ends and top open-ended slot, lower mounting panel (2) bottom insert locate in the slot and with U type splint (10) fixed connection.
7. The single-screw pump stator-rotor disassembly assisting device of claim 1, wherein: still include strengthening rib (11), two strengthening rib (11) symmetry set up in go up the both sides of fixed slot and with go up mounting panel (3) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222436981.7U CN218698416U (en) | 2022-09-14 | 2022-09-14 | Auxiliary device for disassembling stator and rotor of single-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222436981.7U CN218698416U (en) | 2022-09-14 | 2022-09-14 | Auxiliary device for disassembling stator and rotor of single-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218698416U true CN218698416U (en) | 2023-03-24 |
Family
ID=85634524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222436981.7U Active CN218698416U (en) | 2022-09-14 | 2022-09-14 | Auxiliary device for disassembling stator and rotor of single-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218698416U (en) |
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2022
- 2022-09-14 CN CN202222436981.7U patent/CN218698416U/en active Active
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