CN210132454U - Device for disassembling shaft sleeve of centrifugal pump - Google Patents
Device for disassembling shaft sleeve of centrifugal pump Download PDFInfo
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- CN210132454U CN210132454U CN201920545781.0U CN201920545781U CN210132454U CN 210132454 U CN210132454 U CN 210132454U CN 201920545781 U CN201920545781 U CN 201920545781U CN 210132454 U CN210132454 U CN 210132454U
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- sleeve
- boosting
- jackscrew
- plate
- centrifugal pump
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Abstract
The utility model discloses a device for dismantling centrifugal pump axle sleeve belongs to production facility and overhauls technical field. In the device, the jackscrew can move relative to the sleeve through threads, and the sleeve and the boosting part are fixed relative to each other, so that the sleeve can drive the boosting part to move, and the boosting part is used for driving the shaft sleeve to move relative to the pump shaft. When the axle sleeve is dismantled to needs, only need with the sleeve suit on the pump shaft of centrifugal pump and the free end of axle sleeve, stop the boosting piece in the tip of axle sleeve, make sleeve, boosting piece and axle sleeve relatively fixed, later rotatory jackscrew, because relative position between jackscrew and the pump shaft is unchangeable, so the sleeve drives boosting piece and axle sleeve and removes to the direction that breaks away from the pump shaft to dismantle the axle sleeve steadily, avoid the axle sleeve because of the atress is uneven and impaired, and labour saving and time saving.
Description
Technical Field
The utility model relates to a production facility overhauls technical field, in particular to a device for dismantling centrifugal pump axle sleeve.
Background
Centrifugal pumps are common equipment in industrial production, for example, centrifugal pumps are widely used in oilfield production. The shaft sleeve is an important accessory of the centrifugal pump, bears the abrasion of the filler and the corrosion of the medium in the work, has a relatively short service cycle and needs to be frequently replaced and overhauled. Because the shaft sleeve is fixed on the pump shaft in an interference connection mode, a special tool is needed for disassembling the shaft sleeve.
At present crowbar and sledgehammer are used commonly and are dismantled the centrifugal pump axle sleeve, during the operation, support the one end of crowbar in the bottom of axle sleeve, use the other end of sledgehammer hammering crowbar, alternate the position of crowbar to along the different positions of axle sleeve circumference to this axle sleeve application of force, make this axle sleeve deviate from the pump shaft gradually.
Above-mentioned crowbar and sledgehammer are dismantling the in-process of axle sleeve, because the crowbar supports the bottom at the axle sleeve, the lifting surface area of this axle sleeve is less, and the crowbar application of force in-process makes the axle sleeve receive the damage easily and scrap, and dismantles and waste time and energy.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a device for dismantling centrifugal pump axle sleeve can solve the in-process that uses crowbar and sledgehammer to dismantle the axle sleeve, because the crowbar supports in the bottom of axle sleeve, the lifting surface area of this axle sleeve is less, makes the axle sleeve receive the damage easily in the crowbar application of force process and scrap, and dismantles the problem that wastes time and energy. The technical scheme is as follows:
there is provided an apparatus for disassembling a shaft sleeve of a centrifugal pump, the apparatus comprising:
the sleeve is sleeved on the shaft sleeve of the centrifugal pump and the free end of the pump shaft of the centrifugal pump;
the jackscrew is in threaded connection with the sleeve, and the end face of the jackscrew is used for abutting against the free end face of the pump shaft of the centrifugal pump;
and the boosting part is detachably connected with the sleeve and is used for abutting against the end surface, far away from the jackscrew, in the shaft sleeve of the centrifugal pump.
In a possible design, a connecting plate is arranged on the sleeve, and a threaded through hole matched with the external thread of the jackscrew is formed in the connecting plate.
In one possible design, the jackscrew is arranged coaxially with the centrifugal pump shaft.
In one possible embodiment, a screwing element is arranged on the end of the jackscrew remote from the booster.
In one possible design, one end of the jackscrew close to the boosting part is in a conical structure, and the diameter of the conical structure is gradually reduced from the direction far away from the boosting part to the direction close to the boosting part.
In one possible design, the booster includes: the first boosting plate and the second boosting plate are respectively and vertically distributed with the central axis of the sleeve;
the first boosting plate and the second boosting plate are respectively used for abutting against the shaft sleeve of the centrifugal pump;
the first boosting plate and the two ends of the second boosting plate protrude out of the sleeve, and a fastening piece is connected between the first boosting plate and the second boosting plate, so that the first boosting plate and the second boosting plate are fixed on the sleeve.
In one possible design, the first booster plate has a threaded through hole therein, and the second booster plate has a through hole therein;
the boosting part further comprises: and the nut is abutted against the outer wall of the second boosting plate, which deviates from the first boosting plate, and is in threaded connection with the fastener.
In one possible design, the surface of the booster close to the pump shaft of the centrifugal pump is an arc-shaped surface.
In one possible design, the apparatus further includes: a handle connected to the sleeve.
In one possible design, the sleeve is provided with a plurality of viewing apertures.
In the device, the jackscrew can move relative to the sleeve through threads, and the sleeve and the boosting part are fixed relative to each other, so that the sleeve can drive the boosting part to move, and the boosting part is used for driving the shaft sleeve to move relative to the pump shaft. When the axle sleeve is dismantled to needs, only need with the sleeve suit on the pump shaft of centrifugal pump and the free end of axle sleeve, stop the boosting piece in the tip of axle sleeve, make sleeve, boosting piece and axle sleeve relatively fixed, later rotatory jackscrew, because relative position between jackscrew and the pump shaft is unchangeable, so the sleeve drives boosting piece and axle sleeve and removes to the direction that breaks away from the pump shaft to dismantle the axle sleeve steadily, avoid the axle sleeve because of the atress is uneven and impaired, and labour saving and time saving.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a device for disassembling a shaft sleeve of a centrifugal pump according to an embodiment of the present invention.
The various reference numbers in the drawings are illustrated below:
a-shaft sleeve, B-pump shaft;
1-a sleeve;
11-connecting plate, 12-handle, 13-observation hole;
2-top thread;
21-screw, 22-cone configuration;
3-a boosting part;
31-first booster plate, 32-second booster plate, 33-fastener, 34-nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an apparatus for disassembling a centrifugal pump shaft sleeve according to an embodiment of the present invention, referring to fig. 1, the apparatus includes: the sleeve 1 is sleeved on the free ends of the shaft sleeve A and the pump shaft B of the centrifugal pump; the jackscrew 2 is in threaded connection with the sleeve 1, and the end surface of the jackscrew is used for abutting against the free end surface of the pump shaft B of the centrifugal pump; the boosting part 3 is detachably connected with the sleeve 1 and is used for abutting against the end face, far away from the jackscrew 2, in the shaft sleeve A of the centrifugal pump.
The working principle of the device is described in detail below:
in the device, the jackscrew 2 can move relative to the sleeve 1 through threads, and the sleeve 1 and the boosting part 3 are fixed relative to each other, so that the sleeve 1 can drive the boosting part 3 to move, and the boosting part 3 is used for driving the shaft sleeve A to move relative to the pump shaft B.
When axle sleeve A is dismantled to needs, only need with sleeve 1 suit on the pump shaft B of centrifugal pump and axle sleeve A's free end, stop boosting member 3 in axle sleeve A's tip, make sleeve 1, boosting member 3 and axle sleeve A relatively fixed, later rotatory jackscrew 2, because relative position between jackscrew 2 and the pump shaft B is unchangeable, so sleeve 1 drives boosting member 3 and axle sleeve A and removes to the direction that breaks away from pump shaft B, thereby dismantle axle sleeve A steadily, avoid axle sleeve A impaired because of the atress is uneven, and labour saving and time saving.
In one possible design, the sleeve 1 is provided with a web 11, the web 11 having a threaded through-hole adapted to the external thread of the jackscrew 2.
The connecting plate 11 is used for connecting the sleeve 1 and the jackscrew 2, and relative movement between the jackscrew 2 and the sleeve 1 along the axial direction of the sleeve 1 is realized through relative rotation between the connecting plate 11 and the jackscrew 2.
Specifically, the sleeve 1 is cylindrical, and has an inner diameter larger than the outer diameter of the shaft sleeve a, for example, it may be a hollow cylindrical steel cylinder, and one end of the hollow cylindrical steel cylinder is open for sleeving the shaft sleeve a and the pump shaft B; the other end is blocked by a connecting plate 11, a threaded hole matched with the jackscrew 2 is processed at the axis of the connecting plate 11, and the connecting plate 11 can be fixedly connected with the sleeve 1, for example, welded; or the connecting plate 11 is integrally formed with the sleeve 1; or the connection plate 11 and the sleeve 1 may be detachably connected, for example, a snap connection, and the embodiment of the present invention does not limit the connection form.
Of course, the end of the sleeve 1 connected with the jackscrew 2 may also be an opening, and the sleeve 1 is connected with the jackscrew 2 through the thread on the inner wall, or connected in other ways, which is not limited by the embodiment of the present invention.
In one possible design, the jackscrew 2 is arranged coaxially with the pump shaft B.
The coaxial arrangement means that the axes of the jackscrew 2 and the pump shaft B are the same straight line, and the coaxial arrangement enables the jackscrew 2 to be located at the axis of the end face of the pump shaft B when applying force to the pump shaft B, and the force application direction is along the axis of the pump shaft B, so that the bias of the force application direction is avoided, and the shaft sleeve A is difficult to disassemble.
In one possible embodiment, a screw 21 is provided on the end of the jackscrew 2 remote from the driver 3.
The screwing member 21 is used for screwing the jack 2, and may be a regular polygonal block fixed to one end of the jack 2 or a screwing handle, for example, a hexagonal nut, and the screwing member 21 and the jack 2 may be conveniently rotated by a tool such as a wrench.
In one possible design, the end of the jackscrew 2 close to the driver 3 is a conical structure 22, and the diameter of the conical structure 22 gradually decreases from the direction away from the driver 3 to the direction close to the driver 3.
The conical structure 22 is used for reducing the contact area between the jackscrew 2 and the pump shaft B, and reducing the friction force between the jackscrew 2 and the pump shaft B in the process of rotating relative to the pump shaft B so as to save labor. The conical structure 22 may be formed integrally with the jackscrew 2 or fixedly connected to the jackscrew 2, which is not limited in this embodiment.
In one possible design, the booster 3 comprises: a first boost plate 31 and a second boost plate 32 which are respectively distributed vertically to the central axis of the sleeve 1; the first boost plate 31 and the second boost plate 32 are respectively used for abutting against the shaft sleeve a; both ends of the first boost plate 31 and both ends of the second boost plate 32 protrude out of the sleeve 1, and a fastening member 33 is connected between the first boost plate 31 and the second boost plate 32, so that the first boost plate 31 and the second boost plate 32 are fixed on the sleeve 1.
The design improves the adaptability of the boosting part 3, so that the boosting part 3 can be applied to pump shafts B with various specifications. Specifically, the first boost plate 31 and the second boost plate 32 may be both square polished rods.
The fastening member 33 is used to connect the ends of the first and second boost plates 31 and 32 on the same side of the sleeve 1. Specifically, the number of the fastening members 33 may be one or two, and when the number of the fastening members 33 is one, the fastening members 33 are used to connect the ends of the first boost plate 31 and the second boost plate 32, which are located on the same side of the sleeve 1; when the number of the fastening members 33 is two, each fastening member is used to connect one ends of the first and second boost plates 31 and 32 located at the same side of the sleeve 1.
In use, after the sleeve 1 is fitted around the pump shaft B and the shaft sleeve a, the first thrust plate 31 and the second thrust plate 32 are inserted into the respective notches of the sleeve 1, the first thrust plate 31 and the second thrust plate 32 are moved to positions abutting against the end surface of the shaft sleeve a of the centrifugal pump, and the first thrust plate 31 and the second thrust plate 32 are fixed to the sleeve 1 using the fastening members 33.
In one possible design, the first booster plate 31 has a threaded through hole therein, and the second booster plate 32 has a through hole therein; this boosting member 3 still includes: and the nut 34 is abutted against the outer wall of the second boosting plate 32, which is far away from the first boosting plate 31, and is in threaded connection with the fastener 33.
Through threaded connection, the installation and the disassembly of the boosting part 3 are facilitated, and the disassembly and the connection between the boosting part 3 and the sleeve 1 are facilitated. In use, the first thrust plate 31 and one end of the fastening member 33 are first screwed, the through hole of the second thrust plate 32 is then fitted to the fastening member 33, the first thrust plate 31 and the second thrust plate 32 are mounted on the sleeve 1 and moved to the proper position, and then the nut 34 is connected to the other end of the fastening member 33, and the end surface of the nut 34 is pressed against the outer wall of the second thrust plate 32, thereby fixing the first thrust plate 31 and the second thrust plate 32 to the sleeve 1.
In one possible embodiment, the surface of the thrust aid 3 adjacent to the pump shaft B is curved.
The arc surface is used for increasing the contact surface between the boosting member 3 and the shaft sleeve a, and the boosting member 3 is more firmly fixed on the end surface of the shaft sleeve a and the pump shaft B by utilizing the radial height difference between the shaft sleeve a and the pump shaft B. Specifically, the radius of curvature of the arcuate surface may be equal to or slightly larger than the outer diameter of the pump shaft B.
In one possible design, the apparatus further includes: a handle 12 connected to the sleeve 1.
The handle 12 is used to better control the sleeve 1, avoiding that the sleeve 1 rotates with the jack screw 2 during the rotation of the jack screw 2. The handle 12 may be a cylindrical metal rod, and the handle 12 may be connected to the sleeve 1 through a threaded connection, or may be connected to the sleeve 1 through other detachable connections, or the handle 12 and the sleeve 1 are integrally formed, which is not limited in this embodiment.
In one possible design, the sleeve 1 is provided with a plurality of viewing apertures 13.
The plurality of observation holes 13 are used to observe the state of the inside of the sleeve 1 during disassembly, and specifically, the plurality of observation holes 13 may be provided in the circumferential direction of the sleeve 1.
Above-mentioned all optional technical scheme can adopt arbitrary combination to form the optional embodiment of this utility model, and the repeated description is no longer given here.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. An apparatus for removing a shaft sleeve of a centrifugal pump, the apparatus comprising:
the sleeve (1) is sleeved on the free ends of the centrifugal pump shaft sleeve (A) and the centrifugal pump shaft (B);
the jackscrew (2) is in threaded connection with the sleeve (1), and the end surface of the jackscrew is used for abutting against the free end surface of the pump shaft (B) of the centrifugal pump;
and the sleeve (1) is detachably connected with a boosting part (3) which is far away from the end surface of the jackscrew (2) in the shaft sleeve (A) of the centrifugal pump and is abutted against the end surface of the jackscrew.
2. The device according to claim 1, characterized in that a connecting plate (11) is arranged on the sleeve (1), and the connecting plate (11) is provided with a threaded through hole matched with the external thread of the jackscrew (2).
3. The device according to claim 1, characterized in that the jackscrew (2) is arranged coaxially with the centrifugal pump shaft (B).
4. The device according to claim 1, characterized in that a screw (21) is arranged on the end of the jackscrew (2) remote from the booster (3).
5. The device according to claim 1, characterized in that one end of the jackscrew (2) close to the booster (3) is a conical structure (22), and the diameter of the conical structure (22) is gradually reduced from the direction away from the booster (3) to the direction close to the booster (3).
6. The device according to claim 1, characterized in that the booster (3) comprises: a first boosting plate (31) and a second boosting plate (32) which are respectively and vertically distributed with the central axis of the sleeve (1);
the first boosting plate (31) and the second boosting plate (32) are respectively used for abutting against the shaft sleeve (A) of the centrifugal pump;
the both ends of first boosting board (31) with the both ends of second boosting board (32) all bulge in the outside of sleeve (1), just first boosting board (31) with be connected with fastener (33) between second boosting board (32), so that first boosting board (31) second boosting board (32) are fixed on sleeve (1).
7. The device of claim 6, wherein the first booster plate (31) has a threaded through hole therein and the second booster plate (32) has a through hole therein;
the boosting part (3) further comprises: and the nut (34) is abutted against the outer wall of the second boosting plate (32) deviating from the first boosting plate (31) and is in threaded connection with the fastener (33).
8. The device according to claim 1, characterized in that the face of the booster (3) close to the centrifugal pump shaft (B) is an arc-shaped face.
9. The apparatus of claim 1, further comprising: a handle (12) connected to the sleeve (1).
10. Device according to claim 1, characterized in that the sleeve (1) is provided with a plurality of viewing apertures (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920545781.0U CN210132454U (en) | 2019-04-19 | 2019-04-19 | Device for disassembling shaft sleeve of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920545781.0U CN210132454U (en) | 2019-04-19 | 2019-04-19 | Device for disassembling shaft sleeve of centrifugal pump |
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| Publication Number | Publication Date |
|---|---|
| CN210132454U true CN210132454U (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920545781.0U Active CN210132454U (en) | 2019-04-19 | 2019-04-19 | Device for disassembling shaft sleeve of centrifugal pump |
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| CN (1) | CN210132454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114434088A (en) * | 2020-11-06 | 2022-05-06 | 中国石油天然气股份有限公司 | Device and method for disassembling shaft sleeve of centrifugal pump |
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2019
- 2019-04-19 CN CN201920545781.0U patent/CN210132454U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114434088A (en) * | 2020-11-06 | 2022-05-06 | 中国石油天然气股份有限公司 | Device and method for disassembling shaft sleeve of centrifugal pump |
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