CN211414872U - Centering device for mounting connecting rod and plunger of plunger type reciprocating pump - Google Patents
Centering device for mounting connecting rod and plunger of plunger type reciprocating pump Download PDFInfo
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- CN211414872U CN211414872U CN201921733436.6U CN201921733436U CN211414872U CN 211414872 U CN211414872 U CN 211414872U CN 201921733436 U CN201921733436 U CN 201921733436U CN 211414872 U CN211414872 U CN 211414872U
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- connecting rod
- centering device
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- 238000007906 compression Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 238000004904 shortening Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 239000003208 petroleum Substances 0.000 description 1
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Abstract
The utility model discloses a centering device for installing connecting rod and plunger of plunger type reciprocating pump belongs to oil engineering equipment maintenance technical field. The centering device comprises a connecting disc for connecting a connecting rod or a plunger, a cartridge arranged on the connecting disc and a laser transmitter arranged on the cartridge; when the centering device is used, the centering device is connected to the connecting rod or the plunger, and therefore laser emitted by the laser emitter can be used for finding the centering position of the plunger or the connecting rod. The centering device solves the problem that the plunger and the connecting rod cannot be accurately centered and cannot be connected during routine maintenance (such as oil seal replacement, connecting rod replacement or plunger assembly replacement) of the plunger pump, avoids the condition that an operator fastens the compression flange of the plunger assembly unevenly due to tools or improper operation, and ensures accurate centering connection of the plunger and the connecting rod. The centering device is simple in structure, low in cost, simple and quick in installation and operation, and capable of greatly shortening the equipment maintenance time, reducing the working strength and improving the working efficiency.
Description
Technical Field
The utility model relates to a petroleum engineering equipment maintenance technical field, in particular to a centering device for installing connecting rod and plunger of plunger type reciprocating pump.
Background
In oil field production, a plunger type reciprocating pump (electric plunger reciprocating pump) is widely used as a power reciprocating pump. The electric plunger piston reciprocating pump adopts a motor as power and drives the plunger piston to do reciprocating motion through a crank connecting rod mechanism. As shown in fig. 1, when performing routine maintenance (for example, replacing an oil seal, a connecting rod or a plunger assembly), it is usually necessary to separate the connecting rod 1 from the plunger 2. The connecting rod 1 and the plunger 2 of the plunger type reciprocating pump are on the same central line, and when the plunger type reciprocating pump is installed, the central column 3 on the connecting rod 1 can be connected with the central hole 4 on the plunger 2 after being aligned.
Generally, when replacing the plunger assembly, the pressing flange nut for fastening the plunger assembly needs to be dismounted, then the plunger assembly is mounted, the pressing flange nut and the disc pump are uniformly tightened, and after the central column 3 on the connecting rod 1 is aligned with the central hole 4 on the plunger 2, the connecting slips are mounted to complete the replacement.
Designers have found that there are at least the following problems with the prior art:
when the four nuts of the compression flange of the plunger assembly are fastened, the centers of the connecting rod 1 and the plunger 2 are not on the same line due to the fact that the nuts are fastened unevenly, the central column 3 of the connecting rod 1 and the central hole 4 of the plunger 2 cannot be connected in an aligned mode, at the moment, the four nuts of the compression flange need to be dismounted, the compression flange is fastened again, the four nuts of the compression flange are aligned again, time and labor are wasted, and starting and running of equipment are affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a centering device for installing connecting rod and plunger of plunger type reciprocating pump can solve above-mentioned technical problem.
Specifically, the method comprises the following technical scheme:
there is provided a centering device for mounting a connecting rod and a plunger of a plunger type reciprocating pump, the centering device comprising: the device comprises a connecting disc, a plug-in component and a laser transmitter;
the plug-in component is arranged at the first end of the connecting disc, and the laser transmitter is arranged in the plug-in component;
the second end of the connecting disc is connected with a connecting rod or a plunger of the plunger type reciprocating pump, and
when the second end of the connecting disc is connected with the connecting rod, laser emitted by the laser emitter is superposed with the central line of the central column of the connecting rod;
when the second end of the connecting disc is connected with the plunger, the laser emitted by the laser emitter is superposed with the central line of the central hole of the plunger.
In one possible design, the connecting disc comprises a groove provided at the second end;
when in connection, the connecting disc is sleeved on the connecting rod or the plunger of the plunger type reciprocating pump through the groove.
In one possible design, the groove wall of the groove bears against the outer wall of the connecting rod or the plunger when connected.
In one possible design, the connecting disc further comprises a mounting hole arranged in the groove, and the diameter of the mounting hole is the same as the outer diameter of the central column of the connecting rod;
when the second end of the connecting disc is connected with the connecting rod, the central column of the connecting rod is clamped in the mounting hole.
In one possible design, a magnet is provided at the mounting hole.
In one possible design, the first end and the second end are located at opposite positions of the connection pad.
In one possible design, the connecting disc is of a circular or regular polygonal configuration.
In one possible design, the insert is a round hole formed on the first end of the connecting disc;
the center line of the round hole is overlapped with the center line of the connecting disc.
In one possible design, the cartridge is a perforated boss provided on a first end of the connecting disc;
the center line of the boss with the hole is superposed with the center line of the connecting disc.
In one possible design, the perforated bump is soldered to the first end of the connecting pad.
The embodiment of the utility model provides a technical scheme's beneficial effect is:
the embodiment of the utility model provides a centering device, through setting up laser emitter, when making connecting rod and plunger connect, can be with the help of the centering position of the accurate plunger or connecting rod of laser emitter transmission of centering device. The utility model provides a problem that plunger and connecting rod can not accurate centering and be connected when centering device has solved plunger pump daily maintenance (for example change oil blanket, connecting rod or plunger assembly etc.), has avoided operating personnel to be connected because of instrument or misoperation to the uneven condition of plunger assembly hold-down flange fastening, ensures that the accurate centering of plunger and connecting rod is connected. The centering device is simple in structure, low in cost, simple and quick in installation and operation, and capable of greatly shortening the equipment maintenance time, reducing the working strength and improving the working efficiency.
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 view illustrating the connection rod and the plunger of a plunger-type reciprocating pump according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a centering device according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a connecting rod and a plunger installed by using a centering device according to an embodiment of the present invention.
The reference numerals in the drawings denote:
1. a connecting rod;
2. a plunger;
3. a central column;
4. a central bore;
5. a connecting disc;
6. a cartridge;
7. a laser transmitter;
8. a bolt;
9. fastening a nut;
10. compressing the flange;
11. a pump body;
12. a plunger assembly;
13. a crankcase body;
14. and (4) laser.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following will describe the embodiments of the present invention in further detail with reference to the accompanying drawings.
An embodiment of the present invention provides a centering device for mounting a connecting rod and a plunger of a plunger type reciprocating pump, as shown in fig. 1 to 3, the centering device comprising: the connecting disc 5, the cartridge 6 and the laser transmitter 7;
the cartridge 6 is arranged on a first end of the connecting disc 5, and the laser emitter 7 is arranged in the cartridge 6;
the second end of the connecting disc 5 is connected with the connecting rod 1 or the plunger 2 of the plunger type reciprocating pump, and
when the second end of the connecting disc 5 is connected with the connecting rod 1, the laser 14 emitted by the laser emitter 7 is superposed with the central line of the central column 3 of the connecting rod 1;
when the second end of the connecting disc 5 is connected with the plunger 2, the laser 14 emitted by the laser emitter 7 is coincident with the central line of the central hole 4 of the plunger 2.
The embodiment of the utility model provides a centering device, through setting up laser emitter 7, when making connecting rod 1 and plunger 2 connect, can be with the help of the centering position of the accurate plunger or connecting rod of laser emitter 7 transmission of centering device. The utility model provides a problem that plunger and connecting rod can not accurate centering and be connected when centering device has solved plunger pump daily maintenance (for example change oil blanket, connecting rod or plunger assembly etc.), has avoided operating personnel to be connected because of instrument or misoperation to the uneven condition of plunger assembly hold-down flange fastening, ensures that the accurate centering of plunger and connecting rod is connected. The centering device is simple in structure, low in cost, simple and quick in installation and operation, and capable of greatly shortening the equipment maintenance time, reducing the working strength and improving the working efficiency.
It will be appreciated that when connecting the rod 1 and the plunger 2, the rod 1 can be aligned with the plunger 2 and the plunger 2 can be aligned with the rod 1. Thus, the centering device can be mounted on the connecting rod 1 as well as on the plunger 2. For convenience of explanation, the following description will be made in detail by taking as an example a case where the centering device is attached to the connecting rod 1 (when the plunger assembly is replaced).
As shown in fig. 3, after the plunger pump is stopped as required, the connecting clamp of the connecting rod 1 and the plunger 2 is removed to separate the connecting rod 1 and the plunger 2 (see fig. 1), wherein the connecting rod 1 is connected to the crankcase 13, and the plunger 2 is connected to the plunger assembly 12 (the plunger assembly 12 is connected to the pump body 11). And (3) detaching the fastening nuts 9 (four) on the compression flange 10, loosening the plunger assembly 12, detaching the old plunger assembly 12, then installing the new plunger assembly 12, installing the bolts 8, and symmetrically pre-tightening the four fastening nuts 9 of the compression flange 10. Then connecting the connecting disc 5 (the second end of the centering device) on the connecting rod 1, installing the laser emitter 7 in the plug-in component 6, turning on the laser emitter 7, irradiating the laser 14 emitted by the laser emitter 7 on the end face of the plunger 2, and judging whether the plunger assembly 12 is deviated or not by observing whether the irradiation position is at the center of the central hole 4 of the plunger 2 or not. Finally, the corresponding fastening is carried out until the laser 14 irradiates the center of the central hole 4 of the plunger 2, namely the fastening is finished. After the pump is coiled, the connecting rod 1 moves horizontally, the central column 3 of the connecting rod 1 is aligned with the central hole 4 of the plunger 2 and then is tightly attached to the central hole, the connecting hoop is installed, and the work of replacing the plunger assembly 12 is completed by tightening the bolt.
In the above centering device, in order to facilitate the connection of the connecting plate 5 to the connecting rod 1 or the plunger 2, the connecting plate 5 may be made to include a groove provided at the second end;
when in connection, the connecting disc 5 is sleeved on the connecting rod 1 or the plunger 2 of the plunger type reciprocating pump through the groove.
More specifically, the groove may be directly opened on the second end of the connection pad 5, or may be provided (e.g., welded) on the second end of the connection pad 5 through an external member having the groove. It will be appreciated that the recess is sized to receive the connecting end face of the connecting rod 1.
In consideration of the accuracy and stability of centering, the groove wall of the groove can be tightly attached to the outer wall of the connecting rod 1 or the plunger 2 during connection. That is, the outer edge of the connecting plate 5 is brought into contact with (sufficiently contacted with) the outer edge of the link 1 after the connection.
It will be appreciated that since the connecting rod 1 and the plunger 2 generally have the same outer diameter, the above-described centering device may be fitted over both the connecting rod 1 and the plunger 2 during use.
Considering that the connecting end surface of the connecting rod 1 is provided with the central column 3, in order to enable the centering position to be more accurate, the connecting disc 5 can further comprise a mounting hole arranged in the groove, and the diameter of the mounting hole is the same as the outer diameter of the central column 3 of the connecting rod 1; when the second end of the connecting disc 5 is connected with the connecting rod 1, the central column 3 of the connecting rod 1 can be clamped in the mounting hole. Therefore, the centering device can be more stably connected to the connecting rod 1, and centering errors caused by shaking are avoided.
Further, magnets may be provided at the mounting holes to facilitate accurate connection of the centering device to the connecting rod 1.
In a possible embodiment, the connecting disc 5 of the centering device can be made of iron sheet, the inner diameter of the groove of the connecting disc 5 is the same as the outer diameter of the connecting rod 1 or the plunger 2, and the edge (groove wall) can be sleeved on the connecting rod 1 or the plunger 2; a cylindrical magnet with a hole at the center is arranged in the groove of the connecting disc 5, and the aperture of the magnet is the same as the outer diameter of the central column 3 of the connecting rod 1.
In the above-described centering device, as shown in fig. 2, the first end and the second end may be located at opposite positions of the land 5 for convenience of manufacturing and processing. Further, the land 5 may be made in a circular structure or a regular polygonal structure.
In the above-described centering device, the cartridge 6 is arranged at a first end of the connecting plate 5 for mounting the laser emitter 7. In view of the ease of installation of the laser emitter 7, the following illustrates the construction of a suitable cartridge 6:
in a possible embodiment, the cartridge 6 may be provided as a circular hole provided on a first end of the connecting disc 5; the center line of the circular hole is superposed with the center line of the connecting disc 5.
When the laser emitter 7 is used, the laser emitter 7 is directly installed in the circular hole, and the central line of the circular hole is overlapped with the central line of the connecting disc 5, so that laser 14 emitted by the laser emitter 7 can be overlapped with the central line of the central column 3 of the connecting rod 1 or the central line of the central hole 4 of the plunger 2 after installation.
In another possible embodiment, the cartridge 6 may be provided as a holed boss provided on a first end of the connecting disc 5; the center line of the boss with the hole is superposed with the center line of the connecting disc 5.
When the laser emitter 7 is used, the laser emitter 7 is directly installed in a hole with a hole bulge, and the center line of the hole bulge is overlapped with the center line of the connecting disc 5, so that laser 14 emitted by the laser emitter 7 can be overlapped with the center line of the central column 3 of the connecting rod 1 or the center line of the central hole 4 of the plunger 2 after installation.
Further, in order to secure structural stability, a perforated bump may be soldered on the first end of the connection pad 5.
The above description is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. 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 (10)
1. A centering device for mounting a connecting rod and a plunger of a plunger-type reciprocating pump, the centering device comprising: the device comprises a connecting disc (5), a plug-in component (6) and a laser emitter (7);
the cartridge (6) is arranged at a first end of the connecting disc (5), and the laser emitter (7) is arranged in the cartridge (6);
the second end of the connecting disc (5) is connected with the connecting rod (1) or the plunger (2) of the plunger type reciprocating pump, and
when the second end of the connecting disc (5) is connected with the connecting rod (1), the laser (14) emitted by the laser emitter (7) is superposed with the central line of the central column (3) of the connecting rod (1);
when the second end of the connecting disc (5) is connected with the plunger (2), the laser (14) emitted by the laser emitter (7) is superposed with the central line of the central hole (4) of the plunger (2).
2. Centring device according to claim 1, characterized in that said coupling disc (5) comprises a groove provided at said second end;
when in connection, the connecting disc (5) is sleeved on the connecting rod (1) or the plunger (2) of the plunger type reciprocating pump through the groove.
3. Centring device according to claim 2, characterized in that the groove walls of the groove abut against the outer wall of the connecting rod (1) or the plunger (2) when connected.
4. Centring device according to claim 2, characterized in that the connection disc (5) further comprises a mounting hole provided in the recess, the diameter of the mounting hole being the same as the outer diameter of the centre post (3) of the connecting rod (1);
when the second end of the connecting disc (5) is connected with the connecting rod (1), the central column (3) of the connecting rod (1) is clamped in the mounting hole.
5. The centering device of claim 4, wherein a magnet is disposed at said mounting hole.
6. Centring device according to claim 1, characterized in that said first end and said second end are located in opposite positions on said connection disc (5).
7. Centring device according to claim 6, characterized in that said coupling disc (5) is of circular or regular polygonal configuration.
8. Centring device according to claim 7, characterized in that said cartridge (6) is a circular hole provided on a first end of said connecting disc (5);
the center line of the round hole is superposed with the center line of the connecting disc (5).
9. Centring device according to claim 7, characterised in that said cartridge (6) is a holed boss provided on a first end of said connecting disc (5);
the center line of the boss with the hole is superposed with the center line of the connecting disc (5).
10. Centring device according to claim 9, characterized in that said holed protrusion is welded on said first end of said connection disc (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733436.6U CN211414872U (en) | 2019-10-15 | 2019-10-15 | Centering device for mounting connecting rod and plunger of plunger type reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733436.6U CN211414872U (en) | 2019-10-15 | 2019-10-15 | Centering device for mounting connecting rod and plunger of plunger type reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211414872U true CN211414872U (en) | 2020-09-04 |
Family
ID=72248160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921733436.6U Active CN211414872U (en) | 2019-10-15 | 2019-10-15 | Centering device for mounting connecting rod and plunger of plunger type reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211414872U (en) |
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2019
- 2019-10-15 CN CN201921733436.6U patent/CN211414872U/en active Active
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