CN202756585U - Electric submersible thick oil screw pump speed reducer with thrust evenly sharing device - Google Patents
Electric submersible thick oil screw pump speed reducer with thrust evenly sharing device Download PDFInfo
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- CN202756585U CN202756585U CN 201220400923 CN201220400923U CN202756585U CN 202756585 U CN202756585 U CN 202756585U CN 201220400923 CN201220400923 CN 201220400923 CN 201220400923 U CN201220400923 U CN 201220400923U CN 202756585 U CN202756585 U CN 202756585U
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- thrust
- bearing
- speed reducer
- output shaft
- screw pump
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Abstract
The utility model discloses an electric submersible thick oil screw pump speed reducer with a thrust evenly sharing device. The electric submersible thick oil screw pump speed reducer with the thrust evenly sharing device comprises a speed reducer. A thrust evenly sharing device is arranged at an output end of the speed reducer, and comprises a shell, an output shaft, a radial bearing and more than two thrust bearing assemblies which are used to evenly sharing the axial thrust. The shell is connected to a box body of the speed reducer, and the output shaft is supported inside the shell through the radial bearing and is connected with a speed reducing output shaft of the speed reducer through a first shaft coupler. The more than two thrust bearing assemblies are arranged on the output shaft in sequence along the axial direction in sleeved mode, and one ends of the thrust bearing assemblies abut against a thrust shaft shoulder of the output shaft, and the other ends of the thrust bearing assemblies abut against the shell. The electric submersible thick oil screw pump speed reducer with the thrust evenly sharing device can evenly bear a huge axial load and powerful axial impact force, and service life of a screw pump and the speed reducer is prolonged.
Description
Technical field
The utility model involvement aspect relates in particular to the latent viscous crude screw pump retarder of electricity of all carrying on a shoulder pole device with thrust to the latent viscous crude screw pump retarder of the electricity of petroleum industry.
Background technique
Along with domestic many oil gas fields enter the exploitation middle and later periods, the shared ratio of mechanical oil recovery is increasing.Domestic petroleum enterprise is in order further to improve oil production rate and manufacturing efficiency, saving ground space, Cost reduction, mostly adopt the submersible screw pumping unit to replace traditional beam pumping unit recover petroleum, traditional pumping unit of situation particularly can't place to(for) offshore oil and gas field extended reach well and horizontal well, the electric oil submerged screw pump oil production system is widely used.The advantage of screw pump is to process high viscosity and the high crude oil that contains sand, and along with viscosity increases, screw pump must could effectively be worked under the slow-speed of revolution, and its best rotational speed is generally about 100-500r/min.But the huge speed reducer that can not use again ground to drive owing to the diameter space restriction in the down-hole.Therefore the problem that studying electric oil submerged screw pump at first needs to solve is exactly to try every possible means the rotating speed of screw pump is lowered, to satisfy the requirement of the screw pump slow-speed of revolution, high pulling torque.
Generally adopt at present the scheme of oil-submersible motor acceleration and deceleration device both at home and abroad.No matter this scheme is from motor manufacturing technology or from the angle of financial cost, all more feasible.In addition, because screw pump is worked under deep-well, screw pump exhaust end and suction side hydraulic pressure have produced tens tons thrust load, and be accompanied by powerful impact force in the oil recovery process, screw pump is worked in high viscosity and high sand containing crude oil simultaneously, temperature is high especially, and environmental conditions is very abominable, and these have all affected the working life of screw pump and retarder bearing greatly.
The model utility content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provide a kind of can homogenizing the huge thrust load of carrying and powerful axial impact force, the electricity of all carrying on a shoulder pole device with thrust that improves screw pump and the retarder working life viscous crude screw pump retarder of diving.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of latent viscous crude screw pump retarder of electricity of all carrying on a shoulder pole device with thrust, comprise speed reducer, the output terminal of described speed reducer is equiped with thrust and all carries on a shoulder pole device, described thrust is all carried on a shoulder pole device and is comprised housing, output shaft, radial bearing and on average share the thrust bearing assembly of end thrust more than two, described housing is connected on the casing of described speed reducer, described output shaft is supported in the housing by radial bearing, and be connected with the deceleration output shaft of described speed reducer by the first coupling, described two above thrust bearing assemblies are set on the output shaft vertically continuously, and an end pushes on the thrust shaft shoulder of output shaft, and the other end pushes on housing.
Described thrust bearing assembly comprises bearing support, thrust-bearing, all carries spring and spring seat, described bearing sleeve is loaded on the output shaft, described spring socket sleeve is loaded in the housing, and described thrust-bearing upper end pushes in bearing support, and the thrust-bearing lower end pushes on spring seat by all carrying spring.
Two mutual butts of bearing support of adjacent thrust bearing assembly are positioned at bearing support topmost and push in the lower end of the thrust shaft shoulder, two mutual butts of spring seat of adjacent thrust bearing assembly, and the spring seat that is positioned at bottom pushes on housing.
Be equiped with on the described output shaft for the thrust pretension assembly that thrust bearing assembly is loaded axial pre tightening force.
Described thrust pretension assembly comprises pretension seat, preloading spring and pretension thrust-bearing, described pretension cover for seat is loaded in the housing, and be positioned at thrust shaft shoulder top, described pretension thrust-bearing lower end pushes in the upper end of the thrust shaft shoulder, and pretension thrust-bearing upper end pushes on the pretension seat by preloading spring.
Described housing comprises sleeve and is divided into the connecting sleeve at described sleeve two ends, described radial bearing is provided with two, the inner ring of two radial bearings is supported on the output shaft, the outer ring of two radial bearings is supported on respectively on the connecting sleeve, and described thrust bearing assembly and thrust pretension assembly are between two radial bearings.
Compared with prior art, the utility model has the advantage of:
The latent viscous crude screw pump retarder of electricity of all carrying on a shoulder pole device with thrust of the present utility model, on average share end thrust and the axial impact that produces when electricity is dived the work of viscous crude screw pump by thrust bearing assembly more than two groups, make stressing conditions and the abrasion condition of respectively organizing thrust bearing assembly basically identical, avoid single group thrust bearing assembly can't work because of the stressed excessive or frayed latent viscous crude screw pump of whole electricity that too seriously causes, thereby can greatly improve the working life of retarder, and can improve operation stability and the working efficiency of the latent viscous crude screw pump of electricity.The utility model can further arrange in thrust bearing assembly and all carry spring, take full advantage of the elastic buffer ability of all carrying spring so that thrust is all carried on a shoulder pole device that the homogenizing ability of thrust load is improved significantly, stressing conditions and the abrasion condition of each thrust bearing assembly are almost identical, thereby stopped the possibility of appearance " short-board effect " fully, further prolong the working life of each thrust bearing assembly, strengthened the stability of retarder operation.The utility model also can be by arranging thrust pretension assembly, when assembling, just thrust bearing assembly is loaded certain axial pre tightening force, thereby so that output shaft is subject to end thrust and when impacting, the relative displacement that produces between the two adjacent groups thrust bearing assembly reduces, further reduce the wearing and tearing that thrust bearing assembly is subject to, improve the bearing capacity that thrust is all carried on a shoulder pole device.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structure for amplifying schematic diagram that the thrust in the utility model is all carried on a shoulder pole device.
Each label represents among the figure:
1, speed reducer; 2, thrust is all carried on a shoulder pole device; 3, the first coupling; 4, the second coupling; 11, casing; 12, deceleration output shaft; 13, sun wheel shaft; 14, planetary wheel carrier link; 15, planetary wheel carrier; 16, planet wheel; 17, angular contact bearing; 18, deceleration input shaft; 21, housing; 22, output shaft; 23, radial bearing; 24, thrust bearing assembly; 25, thrust pretension assembly; 211, sleeve; 212, connecting sleeve; 221, the thrust shaft shoulder; 241, bearing support; 242, thrust-bearing; 243, all carry spring; 244, spring seat; 251, pretension seat; 252, preloading spring; 253, pretension thrust-bearing.
Embodiment
Fig. 1 and Fig. 2 show a kind of latent viscous crude screw pump retarder embodiment of electricity who all carries on a shoulder pole device with thrust of the present utility model, comprise speed reducer 1, the output terminal of speed reducer 1 is equiped with thrust and all carries on a shoulder pole device 2, thrust is all carried on a shoulder pole device 2 and is comprised housing 21, output shaft 22, radial bearing 23 and on average share the thrust bearing assembly 24 of end thrust more than two, housing 21 is connected on the casing 11 of speed reducer 1, output shaft 22 is supported in the housing 21 by radial bearing 23, and be connected with the deceleration output shaft 12 of speed reducer 1 by the first coupling 3, two above thrust bearing assemblies 24 are set on the output shaft 22 vertically continuously, and an end pushes on the thrust shaft shoulder 221 of output shaft 22, the other end pushes on housing 21, the thrust bearing assembly 24 of the present embodiment is provided with two groups, on average share end thrust and the axial impact that produces when electricity is dived the work of viscous crude screw pump by these two groups of thrust bearing assemblies 24, make stressing conditions and the abrasion condition of two groups of thrust bearing assemblies 24 basically identical, avoid single group thrust bearing assembly 24 can't work because of the stressed excessive or frayed latent viscous crude screw pump of whole electricity that too seriously causes, thereby can greatly improve the working life of retarder, and can improve operation stability and the working efficiency of the latent viscous crude screw pump of electricity.
In the present embodiment, thrust bearing assembly 24 comprises bearing support 241, thrust-bearing 242, all carry spring 243 and spring seat 244, bearing support 241 is set on the output shaft 22, spring seat 244 is set in the housing 21, thrust-bearing 242 upper ends push in bearing support 241, thrust-bearing 242 lower ends push on spring seat 244 by all carrying spring 243, two bearing supports, the 241 mutual butts of adjacent thrust bearing assembly 24, being positioned at bearing support 241 topmost pushes in the lower end of the thrust shaft shoulder 221, two spring seats, the 244 mutual butts of adjacent thrust bearing assembly 24, the spring seat 244 that is positioned at bottom pushes on housing 21.In thrust bearing assembly 24, arrange and all carry spring 243, take full advantage of the elastic buffer ability of all carrying spring 243 so that thrust is all carried on a shoulder pole the homogenizing ability of 2 pairs of thrust loads of device improves significantly, stressing conditions and the abrasion condition of each thrust bearing assembly 24 are almost identical, thereby stopped the possibility of appearance " short-board effect " fully, further prolong the working life of each thrust bearing assembly 24, strengthened the stability of retarder operation.
In the present embodiment, be equiped with on the output shaft 22 for the thrust pretension assembly 25 that thrust bearing assembly 24 is loaded axial pre tightening force.This thrust pretension assembly 25 comprises pretension seat 251, preloading spring 252 and pretension thrust-bearing 253, pretension seat 251 is set in the housing 21, and be positioned at the thrust shaft shoulder 221 tops, pretension thrust-bearing 253 lower ends push in the upper end of the thrust shaft shoulder 221, and pretension thrust-bearing 253 upper ends push on pretension seat 251 by preloading spring 252.By thrust pretension assembly 25 is set, can when assembling, just load certain axial pre tightening force to thrust bearing assembly 24, and so that output shaft 22 is subject to end thrust and when impacting, the relative displacement that produces between the two adjacent groups thrust bearing assembly 24 reduces, thereby further reduce the wearing and tearing that thrust bearing assembly 24 is subject to, improve the bearing capacity that thrust is all carried on a shoulder pole device 2.
In the present embodiment, housing 21 comprises sleeve 211 and is divided into the connecting sleeve 212 at sleeve 211 two ends, radial bearing 23 is provided with two, the inner ring of two radial bearings 23 is supported on the output shaft 22, the outer ring of two radial bearings 23 is supported on respectively on the connecting sleeve 212, and thrust bearing assembly 24 and thrust pretension assembly 25 are between two radial bearings 23.
In the present embodiment, speed reducer 1 is planet wheel decelerator, be provided with sun wheel shaft 13 in the casing 11 of speed reducer 1, be arranged with vertically two groups of planet gear transmission assemblies on the sun wheel shaft 13, planetary wheel carrier 15 in two groups of planet gear transmission assemblies connects by a planetary wheel carrier link 14, deceleration output shaft 12 is connected as a single entity with the planetary wheel carrier 15 that is positioned at the upper end, in other embodiments, the planet gear transmission assembly also can be provided with three groups, four groups or more groups, by arrange more than two groups group planet gear transmission assembly and with same sun wheel shaft 13 transmissions, can realize that a plurality of sun gears are shared jointly and reverse the power transmission, all carry so that reverse power, thereby that can greatly improve speed reducer 1 reverses power transmission capacity, the working life of prolonged deceleration device 1.
In the present embodiment, be provided with angular contact bearing 17 between planet wheel 16 in two groups of planet gear transmission assemblies and the planetary wheel carrier 15, substituted the wear-resistant pad of existing employing with this angular contact bearing 17, improved on the one hand bearing capacity, reduce the deflection that planet wheel 16 produces under powerful responsive to axial force, improve its smoothness of operation, reduced on the other hand the generation of abrasive dust, avoid the wearing and tearing of the driving parts such as abrasive dust aggravation gear, bearing.
In the present embodiment, sun wheel shaft 13 lower ends connect deceleration input shaft 18 by the second coupling 4, the first coupling 3 and the second coupling 4 are crown gear coupling, the diaxon relative displacement that adopts crown gear coupling can effective compensation to be caused by factors such as alignment error, axial impact, part deformations, thereby make that reducer structure is compact, utilization efficiency is high, bearing and gear be not easy to wear, long service life.
Although the utility model discloses as above with preferred embodiment, yet is not to limit the utility model.Any those of ordinary skill in the art, in the situation that do not break away from the technical solutions of the utility model scope, all can utilize the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model, all should drop in the scope of technical solutions of the utility model protection any simple modification, equivalent variations and modification that above embodiment does according to the utility model technical spirit.
Claims (6)
1. an electricity of all carrying on a shoulder pole device with thrust viscous crude screw pump retarder of diving, comprise speed reducer (1), it is characterized in that: the output terminal of described speed reducer (1) is equiped with thrust and all carries on a shoulder pole device (2), described thrust is all carried on a shoulder pole device (2) and is comprised housing (21), output shaft (22), radial bearing (23) and on average share the thrust bearing assembly (24) of end thrust more than two, described housing (21) is connected on the casing (11) of described speed reducer (1), described output shaft (22) is supported in the housing (21) by radial bearing (23), and be connected with the deceleration output shaft (12) of described speed reducer (1) by the first coupling (3), described two above thrust bearing assemblies (24) are set on the output shaft (22) vertically continuously, and an end pushes on the thrust shaft shoulder (221) of output shaft (22), and the other end pushes on housing (21).
2. the electricity of all carrying on a shoulder pole device with the thrust according to claim 1 viscous crude screw pump retarder of diving, it is characterized in that: described thrust bearing assembly (24) comprises bearing support (241), thrust-bearing (242), all carries spring (243) and spring seat (244), described bearing support (241) is set on the output shaft (22), described spring seat (244) is set in the housing (21), described thrust-bearing (242) upper end pushes in bearing support (241), and thrust-bearing (242) lower end pushes on spring seat (244) by all carrying spring (243).
3. the electricity of all carrying on a shoulder pole device with the thrust according to claim 2 viscous crude screw pump retarder of diving, it is characterized in that: two bearing supports (241) of adjacent thrust bearing assembly (24) are butt mutually, being positioned at bearing support (241) topmost pushes in the lower end of the thrust shaft shoulder (221), two spring seats (244) of adjacent thrust bearing assembly (24) are butt mutually, and the spring seat (244) that is positioned at bottom pushes on housing (21).
4. the latent viscous crude screw pump retarder of electricity of all carrying on a shoulder pole device with thrust according to claim 3 is characterized in that: be equiped with on the described output shaft (22) for the thrust pretension assembly (25) that thrust bearing assembly (24) is loaded axial pre tightening force.
5. the electricity of all carrying on a shoulder pole device with the thrust according to claim 4 viscous crude screw pump retarder of diving, it is characterized in that: described thrust pretension assembly (25) comprises pretension seat (251), preloading spring (252) and pretension thrust-bearing (253), described pretension seat (251) is set in the housing (21), and be positioned at the thrust shaft shoulder (221) top, described pretension thrust-bearing (253) lower end pushes in the upper end of the thrust shaft shoulder (221), and pretension thrust-bearing (253) upper end pushes on pretension seat (251) by preloading spring (252).
6. the electricity of all carrying on a shoulder pole device with the thrust according to claim 5 viscous crude screw pump retarder of diving, it is characterized in that: described housing (21) comprises sleeve (211) and is divided into the connecting sleeve (212) at described sleeve (211) two ends, described radial bearing (23) is provided with two, the inner ring of two radial bearings (23) is supported on the output shaft (22), the outer ring of two radial bearings (23) is supported on respectively on the connecting sleeve (212), and described thrust bearing assembly (24) and thrust pretension assembly (25) are positioned between two radial bearings (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400923 CN202756585U (en) | 2012-08-14 | 2012-08-14 | Electric submersible thick oil screw pump speed reducer with thrust evenly sharing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400923 CN202756585U (en) | 2012-08-14 | 2012-08-14 | Electric submersible thick oil screw pump speed reducer with thrust evenly sharing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756585U true CN202756585U (en) | 2013-02-27 |
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ID=47735769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400923 Expired - Fee Related CN202756585U (en) | 2012-08-14 | 2012-08-14 | Electric submersible thick oil screw pump speed reducer with thrust evenly sharing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756585U (en) |
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2012
- 2012-08-14 CN CN 201220400923 patent/CN202756585U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA YUHUA DISTRICT Free format text: FORMER OWNER: CHANGSHA ZHONGCHUAN TRANSMISSION MACHINERY CO., LTD. Effective date: 20150522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 410200 CHANGSHA, HUNAN PROVINCE TO: 410000 CHANGSHA, HUNAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150522 Address after: 410000 No. 248 middle Guo Liang Road, Wangcheng District, Hunan, Changsha Patentee after: CHANGSHA ZHONGCHUAN TRANSMISSION CO., LTD. Address before: 410200 science and technology office, 521 mailbox, Changsha, Hunan Patentee before: AVIC Changsha Zhongchuan Transmission Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20200814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |