CN115523136A - Screw-sealing disc synchronizing mechanism for 8-shaped sealing meshing auxiliary screw pump - Google Patents
Screw-sealing disc synchronizing mechanism for 8-shaped sealing meshing auxiliary screw pump Download PDFInfo
- Publication number
- CN115523136A CN115523136A CN202211319928.7A CN202211319928A CN115523136A CN 115523136 A CN115523136 A CN 115523136A CN 202211319928 A CN202211319928 A CN 202211319928A CN 115523136 A CN115523136 A CN 115523136A
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- gear
- screw
- screw rotor
- sealing
- disc
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- 238000007789 sealing Methods 0.000 title claims abstract description 62
- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000001360 synchronised effect Effects 0.000 claims abstract description 18
- 238000005299 abrasion Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 230000009977 dual effect Effects 0.000 description 6
- 239000010802 sludge Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a screw-sealing disc synchronous mechanism for an 8-shaped sealing meshing auxiliary screw pump, which comprises a screw rotor, wherein a rotating disc with teeth is coaxially arranged at the end part of the screw rotor, a driven gear is coaxially connected to a sealing disc at the side part of the screw rotor, and the driven gear drives the sealing disc to synchronously rotate when rotating; the synchronous control device is characterized by further comprising a duplicate gear which is coaxially connected with an upper end gear and a lower end gear at two end parts of the same shaft body, wherein the upper end gear is in transmission engagement with a toothed rotating disc, the lower end gear is in transmission engagement with a driven gear, through the meshing transmission of the toothed rotating disc and the upper end gear and the meshing transmission of the lower end gear and the driven gear, the synchronous control of the screw rotor and the sealing disc can be realized, the abrasion problem caused by the mutual contact and meshing driving of the screw rotor and the sealing disc is relieved to a certain extent, and the power consumption loss in the working process is reduced.
Description
Technical Field
The invention belongs to the technical field of positive displacement pumps, and particularly relates to a screw-sealing disc synchronous mechanism for an 8-shaped sealing meshing auxiliary screw pump
Background
During the oil extraction process, a large amount of oil sludge is produced. The oil sludge is a pollutant generated in each stage of petroleum processing, has extremely complex components, contains more than 10 percent of oil, more than 40 percent of water and a large amount of toxic substances, and can cause serious harm to air, soil and water bodies in the environment once being discharged into the environment. The oil sludge must be treated by adopting a proper process method, so that the environment can be protected while resources are recovered. The 8-shaped sealing meshing pair screw pump can adapt to a medium with high viscosity and large particle impurities, and is suitable for the aspects of dirty oil and sludge recovery, offshore spilled oil collection, sewage collection and the like.
As a positive displacement pump, the 8-shaped sealing meshing pair screw pump has the advantages of large displacement, good mechanical balance performance, strong medium adaptability, high volume efficiency and the like, and can convey dirty oil sludge fluid medium containing multiple impurities. In the operation process of a common 8-shaped sealing meshing auxiliary screw pump, an auxiliary driving device is not arranged between two 8-shaped sealing discs, and under the action of meshing driving force, a screw rotor rotates under self-driving action, friction exists between the screw rotor and the sealing discs, so that generated heat is difficult to conduct, the screw rotor is abraded, and the efficiency of the pump is reduced; in order to achieve the purposes of energy conservation and high efficiency, an auxiliary driving device is required to be added between the two 8-shaped sealing discs, so that the screw rotor and the sealing discs synchronously rotate, and the contact wear between the screw rotor and the sealing discs is reduced; therefore, the novel screw-sealing disc synchronous mechanism of the 8-shaped sealing meshing pair screw pump has important significance for reducing the abrasion of a screw rotor and improving the operation efficiency.
Disclosure of Invention
The invention aims to reduce the abrasion of a screw rotor in the process of meshing the screw rotor and a sealing disc of the existing 8-shaped sealing meshing auxiliary screw pump, and provides a screw-sealing disc synchronizing mechanism for the 8-shaped sealing meshing auxiliary screw pump, which is suitable for driving and adjusting in the normal working process, effectively reduces the abrasion of the screw rotor and improves the running efficiency of the screw pump.
A screw-sealing disk synchronous mechanism for an 8-shaped sealing meshing auxiliary screw pump mainly comprises a screw rotor, a rotating disk with teeth, a duplicate gear, a driven gear, a sealing disk, a power system and the like, wherein the rotating disk with teeth is arranged at the exhaust end of the screw rotor and is coaxial with the screw rotor; the upper end of the duplex gear is meshed with the toothed rotating disc, and the lower end of the duplex gear is meshed with the driven gear; the duplicate gear is fixed in the shell by a bearing; driven gears and sealing discs in the machine shell are arranged on the left side and the right side of the screw rotor and are positioned in the machine shell through a fixed shaft positioned in the geometric center of the screw rotor; the motor drives the screw rotor and the toothed rotating disc to coaxially rotate, the toothed rotating disc drives the duplicate gear to rotate through meshing, and the duplicate gear further drives the driven gear and the sealing disc to coaxially rotate, so that synchronous driving of the screw rotor and the sealing disc is realized.
The screw rotor comprises a screw tail shaft, an inlet section spiral groove, a pressurizing section spiral groove, an outlet section spiral groove and a screw end shaft which are sequentially connected into a whole, the screw rotor end shaft is connected with a hydraulic motor through a coupler, the tail shaft is connected with an outlet end cover in a positioning mode through a bearing, and a rotating disc with teeth is installed at the exhaust end of the screw rotor and is coaxial with the screw rotor. The rotating disc with teeth is installed at the shaft end of the exhaust side of the screw rotor and is coaxial with the screw rotor, so that the change of the axial position caused by thermal deformation is consistent with the axial expansion of the screw rotor under the load working condition with higher temperature and pressure ratio, the phenomenon of locking caused by nonuniform deformation is avoided, and the running reliability of the 8-shaped sealing meshing auxiliary screw pump shaft end synchronizing mechanism is ensured.
The technical scheme adopted by a screw-sealing disc synchronous mechanism for an 8-shaped sealing meshing pair screw pump is as follows: the meshing mode of the upper end of the duplicate gear and the rotating disc with teeth is 1:1, the lower end of the duplicate gear is meshed with the driven gear in a mode of 1: bevel conical teeth with 1 transmission ratio are meshed. Each level of the synchronizing mechanism satisfies 1:1 transmission ratio transmission, the speed transmission is stable, the speed sudden change is avoided from being blocked mechanically, the synchronous control of the screw rotor and the sealing disc is realized, the contact between the screw rotor and the sealing disc is reduced, the abrasion of the screw rotor is reduced, and the extra power consumption caused by contact abrasion is saved.
The invention has the beneficial effects that: firstly, the screw-sealing disk synchronous mechanism provided by the invention can realize synchronous control of the screw rotor and the sealing disk by the transmission meshing among the toothed rotating disk, the duplicate gear and the driven gear, relieves the abrasion problem caused by mutual contact meshing drive of the screw rotor and the sealing disk to a certain extent, and reduces the power loss in the working process; and the toothed rotating disc and the screw rotor are coaxially arranged at the exhaust end of the screw rotor, so that the blocking caused by the mismatching of thermal deformation is avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the screw-seal disk synchronizing mechanism of the present invention;
FIG. 2 is a schematic view of a duplicate gear structure in the screw-seal disk synchronizing mechanism of the present invention;
FIG. 3 is a view of the upper end of the duplicate gear meshing with the helical teeth cylinder of the toothed rotating disk;
FIG. 4 is a view of the lower end of the duplex gear in conical engagement with the helical teeth of the driven gear;
in the figure: 1-screw rotor; 2-a toothed rotating disc; 3-duplicate gear; 301-helical cylindrical gear at upper end; 302-lower end helical bevel gear; 4-a driven gear; 5-sealing disc.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the overall structure of the screw-sealing disc synchronous mechanism of the invention is schematically shown, the screw-sealing disc synchronous mechanism for an 8-shaped sealing meshing pair screw pump of the invention comprises a screw rotor 1, a rotating disc 2 with teeth is coaxially arranged on the end part of the screw rotor 1, the rotating disc 2 with teeth is positioned on one side of an exhaust end, and two double gears 3, wherein the two double gears 3 are respectively composed of an upper helical gear 301 and a lower helical gear 302 which are connected with two end parts of the same shaft body, and referring to fig. 2, the upper helical gear 301 and the lower helical gear 302 are coaxially arranged on two end parts of the shaft body; the sealing discs 5 on two sides of the screw rotor are coaxially connected with driven gears 4, and the driven gears 4 can drive the sealing discs 5 to synchronously rotate. And the two duplicate gears 3 are fixed in the shell through bearings.
Referring to fig. 3 and 4, the upper-end helical gear 301 of the dual gear 3 is in meshing transmission with the toothed rotating disc 2, the lower-end helical gear 302 is in meshing transmission with the driven gear 4, the toothed rotating disc 2 is driven to synchronously rotate when the screw rotor 1 rotates, the toothed rotating disc 2 is meshed to drive the dual gear 3 to rotate, the two dual gears 3 respectively drive one sealing disc 5 to rotate through the lower-end helical gear, and meanwhile, the meshing mode of the upper-end helical gear 301 of the dual gear 3 and the toothed rotating disc 2 is 1:1, the cylindrical helical teeth with the transmission ratio are meshed, and the meshing mode of the helical teeth bevel gear 302 at the lower end of the duplicate gear 3 and the driven gear is 1:1, synchronous control of the sealing disc 5 and the screw rotor 1 is realized through transmission engagement of 1:1 at each level, contact between the screw rotor 1 and the sealing disc 5 is greatly reduced, abrasion of the screw rotor 1 is reduced, and additional power consumption caused by contact abrasion is saved.
Based on the inventive concept provided by the present invention, it is obvious that those skilled in the art can obtain more embodiments, for example, in some embodiments, the shapes of the upper-end helical cylindrical gear 301 and the lower-end helical conical gear 302 may not be limited, the toothed rotating disc 2 and the upper-end gear of the dual gear 3 are in mesh transmission through a conventional gear, and the lower-end gear of the dual gear 3 and the driven gear 4 are in mesh transmission through a bevel gear; in other embodiments, the meshing transmission ratio of the toothed rotary disk 2 to the upper helical gear 301 and the lower helical gear 302 to the driven gear is not limited, and the transmission is performed to achieve synchronous rotation of the screw rotor 1 and the sealing disk 5, so that the sizes of the upper helical gear 301 and the lower helical gear 302 can be changed, for example, the meshing manner of the upper helical gear 301 to the toothed rotary disk 2 is 3:1, and the lower end helical bevel gear 302 is meshed with the driven gear 4 in a mode of 3:1, and finally still to achieve synchronous rotation of the screw rotor 1 and the sealing disk 5.
Further, the screw rotor 1 is installed in a pump shell, and a bearing is arranged at the end part of a shaft body of the duplicate gear and fixedly installed in the pump shell through the bearing; and a bearing is arranged at the end part of the connecting shaft between the driven gear and the sealing disc, and the driven gear and the sealing disc are also fixedly arranged in the pump shell through the bearing.
Screw rotor 1 is including connecting gradually as an organic whole screw rod tail shaft, entry section helicla flute, pressure boost section helicla flute, export section helicla flute and screw rod end shaft, screw rotor's screw rod end shaft passes through the shaft coupling and links to each other with hydraulic motor, and screw rod tail shaft passes through the bearing and is connected with export end cover location, takes tooth rolling disc 2 to install at screw rotor 1's exhaust end to keep coaxial with screw rotor. The rotating disc 2 with teeth is installed at the shaft end of the exhaust side of the screw rotor and is coaxial with the screw rotor, so that the change of the axial position caused by thermal deformation is consistent with the axial expansion of the screw rotor under the load working condition with higher temperature and pressure ratio, the phenomenon of clamping caused by nonuniform deformation is avoided, and the running reliability of the shaft end synchronizing mechanism of the 8-shaped sealing meshing auxiliary screw pump is ensured.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the invention, and it should be understood by those skilled in the art that various modifications and changes in equivalent structure or equivalent flow, or direct or indirect application to other related fields without creative efforts based on the technical solutions of the present invention may be made within the scope of the present invention.
Claims (5)
1. A screw-sealing disc synchronous mechanism for an 8-shaped sealing meshing auxiliary screw pump comprises a screw rotor and is characterized in that a rotating disc with teeth is coaxially arranged at the end part of the screw rotor, a driven gear is coaxially connected to the sealing disc at the side part of the screw rotor, and the driven gear drives the sealing disc to synchronously rotate when rotating;
the double-gear transmission mechanism is characterized by further comprising a double-gear, wherein the double-gear is composed of an upper end gear and a lower end gear which are coaxially connected to two end portions of the same shaft body, the upper end gear is in transmission engagement with a toothed rotating disc, the lower end gear is in transmission engagement with a driven gear, and the screw rotor and the sealing disc synchronously rotate through the engagement transmission of the toothed rotating disc and the upper end gear and the engagement transmission of the lower end gear and the driven gear.
2. The screw-seal disk synchronizing mechanism according to claim 1, further characterized in that the upper end gear is an upper end helical cylindrical gear, the lower end gear is a lower end helical conical gear, and the lower end helical conical gear forms a bevel gear engagement with the driven gear.
3. The screw-sealing disk synchronizing mechanism according to claim 1, wherein the meshing transmission ratio of the upper end gear of the duplicate gear to the toothed rotating disk is 1:1, and the meshing transmission ratio of the lower end gear of the duplicate gear to the toothed rotating disk is 1:1.
4. The screw-seal disk synchronizing mechanism according to claim 1, further characterized in that a bearing is arranged at the end part of the shaft body of the duplicate gear, and the duplicate gear is fixedly arranged in the pump shell through the bearing; and a bearing is arranged at the end part of the connecting shaft between the driven gear and the sealing disc, and the driven gear and the sealing disc are also fixedly arranged in the pump shell through the bearing.
5. The screw-seal disk synchronous mechanism according to claim 1, wherein the screw rotor comprises a screw tail shaft, an inlet section spiral groove, a pressurizing section spiral groove, an outlet section spiral groove and a screw end shaft which are sequentially connected into a whole, the screw end shaft of the screw rotor is connected with the hydraulic motor through a coupler, the screw tail shaft is connected with the outlet end cover in a positioning mode through a bearing, and the toothed rotating disk is installed at the exhaust end of the screw rotor and is coaxial with the screw rotor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022108584852 | 2022-07-20 | ||
| CN202210858485 | 2022-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115523136A true CN115523136A (en) | 2022-12-27 |
Family
ID=84703826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211319928.7A Pending CN115523136A (en) | 2022-07-20 | 2022-10-26 | Screw-sealing disc synchronizing mechanism for 8-shaped sealing meshing auxiliary screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115523136A (en) |
-
2022
- 2022-10-26 CN CN202211319928.7A patent/CN115523136A/en active Pending
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