CN217749674U - High-pressure reciprocating plunger pump connecting rod bush scraping device - Google Patents
High-pressure reciprocating plunger pump connecting rod bush scraping device Download PDFInfo
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- CN217749674U CN217749674U CN202221520299.XU CN202221520299U CN217749674U CN 217749674 U CN217749674 U CN 217749674U CN 202221520299 U CN202221520299 U CN 202221520299U CN 217749674 U CN217749674 U CN 217749674U
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Abstract
The utility model provides a high pressure reciprocating plunger pump connecting rod tile scraping device, include: the scraper blade, guide wheel, swivel nut, guide bar, round pin axle, screw rod, preceding gland, back gland and support cover etc.. The front gland and the rear gland are respectively embedded with a guide wheel, wherein the front gland is fixedly connected with a clamping plate, and the clamping plate is clamped by bench clamp to fix the whole device.
Description
Technical Field
The utility model relates to a technical field of offshore platform high pressure reciprocating plunger pump specifically relates to a be used for offshore platform high pressure reciprocating plunger pump connecting rod tile scraping device.
Background
The high-pressure reciprocating plunger pump has the characteristics of high pressure, high efficiency and convenient flow regulation, is one of the most main devices for platform production, is used for high-pressure water injection in oil fields, and ensures the smooth operation of oil exploitation. After the plunger pump operates for a certain time, maintenance is needed, and scraping and adjusting of the connecting rod bush are key quality control points for stable operation of the plunger pump.
However, any scraping of the bearing shells is not a successful but a multiple, iterative process to achieve the proper clearance. The scraping process in the prior art mainly comprises the following defects:
the bent axle needs hoist and mount, fixed, has restricted the maintenance place.
The crankshafts have different lengths and different diameters, and need different types of crankshaft supports.
Connecting rod bolt need repeatedly dismantle and fasten many times with the torque wrench: the connecting rod bolt is loosened after the rotation is completed, the bearing bush is scraped, the bearing bush is fastened by a torque wrench after the scraping, the rotation is performed, the connecting rod bolt is loosened after the rotation is completed, and the bearing bush is scraped repeatedly.
The fastening and the dismounting of the connecting rod bolt can be completed only by matching two persons on the shaft diameter of the crankshaft.
In summary, the scraping method in the prior art not only reduces the work efficiency, but also the tedious procedure is easy to cause the injury risk of the personnel.
Therefore, a technical solution for changing the tedious scraping manner of the plunger pump connecting rod bush is needed in the prior art.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a following technical scheme.
A high pressure reciprocating plunger pump connecting rod shoe scraping apparatus comprising:
a front gland and a rear gland;
the two ends of the screw are respectively and rotatably connected with the front gland and the rear gland;
the screw sleeve is sleeved on the screw rod and can move along the screw rod;
the guide rod is arranged in parallel with the screw rod, and two ends of the guide rod are fixedly connected with the front gland and the rear gland;
the guide wheel is sleeved on the threaded sleeve and is fixed relative to the threaded sleeve, and the guide rod penetrates through the guide wheel, so that the guide wheel can move along the guide rod;
the scraper is fixedly connected with the front gland and the rear gland, and the scraper is connected with the guide wheel through a pin shaft, so that the scraper can move relative to the guide wheel;
and the two ends of the supporting sleeve are respectively matched with the front gland and the rear gland, the guide rod, the screw rod, the threaded sleeve and the guide wheel are wrapped in the supporting sleeve, and the supporting sleeve is provided with an opening which can accommodate the scraper to pass through.
The scraper blade is provided with an inclined long hole, the guide wheel is fixedly connected with a pin shaft, and the pin shaft is inserted into the inclined long hole and can move in the inclined long hole.
The both sides of screw rod have levogyration external screw thread and dextrorotation external screw thread respectively, levogyration external screw thread with dextrorotation external screw thread respectively with one the swivel nut cooperation, every fixed cover is established a corresponding on the swivel nut the guide wheel, every be provided with two on the scraper blade oblique slot hole, two oblique slot hole is about each other the central line symmetry of scraper blade sets up, when rotatory during the screw rod, two the swivel nut is followed screw rod antiport, thereby make two the guide wheel is followed the guide bar antiport, the round pin axle is in remove in the oblique slot hole, and then make the scraper blade is flexible.
The front gland is fixedly connected with a clamping plate.
The utility model discloses compare prior art's beneficial effect is:
the scraping process only needs to fasten the connecting rod bolt once, and the connecting rod can be separated from the crankshaft at any time.
The scraping process can be completed by one person.
Need not to use the crane hoist and mount, adult one-hand alright operation improves work efficiency, reduces the operation risk.
Is suitable for the scraping of bearing bushes with different shaft diameters, and effectively reduces the time for scraping and allocating
The connecting rod bush scraping device has the advantages of simple structure, light weight, low cost, convenience in carrying, simplicity and convenience in operation, quality assurance and simplification of the traditional connecting rod bush scraping process.
Drawings
Fig. 1 is an assembly view of the present invention in a fully retracted state of the squeegee.
Fig. 2 is a side view of fig. 1.
Fig. 3 is an assembly view of the present invention in a state where the squeegee is fully extended.
Fig. 4 is a side view of fig. 3.
Fig. 5 is a schematic view of a squeegee.
Fig. 6 is a schematic view of the guide wheel.
Fig. 7 is a schematic view of a threaded sleeve.
Fig. 8 is a schematic view of the guide bar.
Fig. 9 is a schematic view of a pin.
Figure 10 is a schematic view of the front gland.
Fig. 11 is a side view of fig. 10.
Figure 12 is a schematic view of a rear gland.
Fig. 13 is a side view of fig. 12.
FIG. 14 is a schematic view of a screw.
Detailed Description
The present invention will be described with reference to the following embodiments.
The conventional scraping of the plunger pump connecting rod bush comprises the following steps:
hoisting the crankshaft to a crankshaft support for supporting;
fixing the bearing bush in the connecting rod;
coating red lead powder on the shaft diameter of the crankshaft;
sleeving the fixed connecting rod and the bearing bush on a crankshaft neck, screwing a connecting rod bolt by using a torque wrench according to a specified torque, and continuously rotating the connecting rod;
loosening a connecting rod bolt, and scraping according to the red lead powder contact point on the bearing bush;
and repeating the steps until the contact point is qualified.
However, the scraper in this application engages the bearing shell during scraping instead of the conventional crankshaft. Embodiments in the present application will be further described below with reference to the accompanying drawings.
As shown in fig. 1 to 14, the high pressure reciprocating plunger pump connecting rod shoe scraping device comprises: the device comprises a scraper plate 1, a guide wheel 2, a threaded sleeve 3, a guide rod 4, a pin shaft 5, a screw rod 6, a front gland 7, a rear gland 8 and a support sleeve 9. The front gland 7 is fixedly connected with a clamping plate 10, and the clamping plate 10 is clamped by bench clamp to fix the whole device.
Two ends of the screw rod 6 are respectively connected with the front gland 7 and the rear gland 8, and the front gland 7 and the rear gland 8 can rotate around the screw rod 6. The screw sleeve 3 is sleeved on the screw rod 6, the outer surface of the screw rod 6 is provided with an external thread, and the inner wall of the screw sleeve 3 is provided with an internal thread matched with the external thread of the screw rod 6. Therefore, when the screw boss 3 rotates around the screw rod 6, the screw boss 3 moves in the axial direction of the screw rod 6. The guide wheel 2 is fitted on the threaded sleeve 3 and is fixed relative to the threaded sleeve 3 such that, when the threaded sleeve 3 moves along the threaded rod 6, the guide wheel 2 moves synchronously along the guide rod 4. The scraper 1 is connected with the screw sleeve 3 through a pin shaft 5 and can move relative to the pin shaft 5.
In this embodiment, the number of the guide rods is four, and the guide rods are smooth thin rods.
The pin 5 passes through the inclined long hole 11 of the scraper blade 1 and can move in the inclined long hole 11, and meanwhile, the pin 5 also passes through the through hole on the guide wheel 2 and is fixedly connected with the guide wheel 2. When the screw rod 6 is rotated, the barrel 3 is rotated relative to the screw rod 6 to move along the screw rod 6, the guide wheel 2 is fixedly connected with the barrel 3 as a whole, so that the guide wheel 2 and the barrel 3 rotate around the screw rod 6 synchronously to drive the guide rod 4 to move around the screw rod 6, and the guide wheel 2 also moves along the guide rod 4 in the axial direction, and meanwhile, the pin shaft 5 moves in the inclined long hole 11 to move the scraper 1 relative to the screw rod 6 to drive the scraper 1 to stretch in the radial direction of the screw rod 6 and adjust the stretching length of the scraper 1.
Specifically, each scraper 1 is provided with two inclined long holes 11, and the two inclined long holes 11 are symmetrically arranged with respect to the center line of the scraper 1 and have the same angle with the center line. The front side and the rear side of the screw rod 6 are respectively provided with a left-handed external thread and a right-handed external thread, correspondingly, the number of the guide wheels 2 and the number of the thread sleeves 3 are two, the two thread sleeves 3 are respectively sleeved on the front side and the rear side of the screw rod 6 and are respectively matched with the left-handed external thread and the right-handed external thread, and each thread sleeve 3 is respectively matched and sleeved with one guide wheel 2. When rotating screw rod 6, two swivel nuts 3 are for the central axis syntropy rotation of screw rod 6, because two swivel nuts 3 overlap respectively and are established on levogyration external screw thread and the dextrorotation external screw thread on screw rod 6, consequently, when two swivel nuts 3 were around the central axis syntropy rotation of screw rod 6, still can be along the radial direction of screw rod 6 reverse movement (moving towards the both ends of screw rod 6 or centre simultaneously), two guide wheel 2 reverse movement are driven in the removal of two swivel nuts 3, round pin axle 5 among the guide wheel 2 moves along with corresponding guide wheel 2. Since the two inclined long holes 11 in each scraper 1 are symmetrically arranged, the pin 5 moves in the inclined long holes 11 relative to the scraper 1 while the pin 5 moves, thereby forcing the scraper 1 to expand and contract in the radial direction of the screw 6 and adjusting the expansion and contraction length of the scraper 1.
The two ends of the supporting sleeve 9 are respectively matched with the front gland 7 and the rear gland 8, the supporting sleeve 9, the front gland 7 and the rear gland 8 form a sealed integral shell, and the guide wheel 2, the guide rod 4, the screw rod 6, the threaded sleeve 3 and the pin shaft 5 are all located inside the supporting sleeve 9. The support sleeve 9 is provided with an opening for receiving the scraper 1 to pass through, so that the scraper 1 can pass through the support sleeve 9. The vise grips the clamping plate 10 to fix the device as a whole.
The screw rod 6 is rotated by means of a handle or a connecting rod and the like, so that the guide wheel 2 is driven to rotate, and the scraping plate 1 penetrating out of the support sleeve 9 realizes scraping action. The scraper 1 extends and retracts to the required shaft diameter, and replaces a conventional crankshaft to be matched with a bearing bush in the scraping process.
In the description of the present invention, it should be understood that the terms "upper", "lower", "inner", "outer", "bottom", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate and imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The above are only preferred embodiments of the present invention, but the present invention is not limited to the above specific embodiments, and for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all fall into the protection scope of the present invention.
Claims (4)
1. The utility model provides a high pressure reciprocal plunger pump connecting rod tile scraping device which characterized by includes:
a front gland and a rear gland;
the two ends of the screw are respectively and rotatably connected with the front gland and the rear gland;
the screw sleeve is sleeved on the screw rod and can move along the screw rod;
the guide rod is arranged in parallel with the screw rod, and two ends of the guide rod are fixedly connected with the front gland and the rear gland;
the guide wheel is sleeved on the threaded sleeve and is fixed relative to the threaded sleeve, and the guide rod penetrates through the guide wheel, so that the guide wheel can move along the guide rod;
the scraper is fixedly connected with the front gland and the rear gland and is connected with the guide wheel through a pin shaft, so that the scraper can move relative to the guide wheel;
and two ends of the supporting sleeve are respectively matched with the front gland and the rear gland, the guide rod, the screw rod, the threaded sleeve and the guide wheel are wrapped in the supporting sleeve, and the supporting sleeve is provided with an opening for allowing the scraper to pass through.
2. The high-pressure reciprocating plunger pump connecting rod tile scraping device as claimed in claim 1, wherein an inclined long hole is provided on the scraper, a pin shaft is fixedly connected to the guide wheel, and the pin shaft is inserted into and movable in the inclined long hole.
3. The scraping apparatus for the connecting rod shoe of the high-pressure reciprocating plunger pump according to claim 2, wherein the screw rod has left-handed external threads and right-handed external threads on both sides thereof, the left-handed external threads and the right-handed external threads are respectively engaged with one of the screw sleeves, one of the guide wheels is fixedly fitted to each of the screw sleeves, two of the slanted long holes are formed in each of the scraper blades, the two slanted long holes are symmetrically formed with respect to a center line of the scraper blade, when the screw rod is rotated, the two screw sleeves are moved in opposite directions along the screw rod, so that the two guide wheels are moved in opposite directions along the guide rod, and the pin shaft is moved in the slanted long holes, thereby extending and retracting the scraper blades.
4. The high pressure reciprocating plunger pump connecting rod shoe scraping apparatus of claim 1, wherein said front gland is fixedly connected with a clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221520299.XU CN217749674U (en) | 2022-06-17 | 2022-06-17 | High-pressure reciprocating plunger pump connecting rod bush scraping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221520299.XU CN217749674U (en) | 2022-06-17 | 2022-06-17 | High-pressure reciprocating plunger pump connecting rod bush scraping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217749674U true CN217749674U (en) | 2022-11-08 |
Family
ID=83893463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221520299.XU Active CN217749674U (en) | 2022-06-17 | 2022-06-17 | High-pressure reciprocating plunger pump connecting rod bush scraping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217749674U (en) |
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2022
- 2022-06-17 CN CN202221520299.XU patent/CN217749674U/en active Active
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