CN202788604U - Drive shaft assembly of positive displacement motor - Google Patents
Drive shaft assembly of positive displacement motor Download PDFInfo
- Publication number
- CN202788604U CN202788604U CN201220462015.6U CN201220462015U CN202788604U CN 202788604 U CN202788604 U CN 202788604U CN 201220462015 U CN201220462015 U CN 201220462015U CN 202788604 U CN202788604 U CN 202788604U
- Authority
- CN
- China
- Prior art keywords
- bearing
- radial bearing
- lower radial
- shell
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a drive shaft assembly of a positive displacement motor, which comprises a main shaft, an upper radial bearing, a lower radial bearing, an upper bearing shell, a lower bearing shell and a thrust bearing, wherein the main shaft is a stepped shaft, the thrust bearing is arranged on the middle part of the main shaft, the upper end and the lower end of the thrust bearing are respectively provided with the upper radial bearing and the lower radial bearing, the upper radial bearing also comprises an outer sleeve of the upper radial bearing and an inner sleeve of the lower radial sleeve, and the lower radial bearing also comprises an outer sleeve of the lower radial sleeve and an inner sleeve of the lower radial sleeve; and the outer sleeve of the upper radial bearing and the outer sleeve of the lower radial bearing are exchangeable TC bearings, and are respectively fixed on the upper bearing shell and the lower bearing shell on the outside by flat keys. Compared with the prior art, the drive shaft assembly of the positive displacement motor has the advantages of reasonable structure, stability in drive, favorable reliability, easiness in maintenance, and economical and practical performance.
Description
Technical field
The utility model relates to a kind of helicoid hydraulic motor, and particularly a kind of screw drill transmission shaft assembly belongs to well dynamic probing equipment.
Background technology
Helicoid hydraulic motor is the positive displacement mud motor that the pressure differential of liquid is converted into the mechanical energy of rotation, in oilwell drilling production, be used widely, helicoid hydraulic motor be connected on drill bit above, when flowing through the motor of helicoid hydraulic motor, high-pressure slurry produces moment of torsion, the rotor of CD-ROM drive motor rotates, thus the drill bit work below driving.Helicoid hydraulic motor mainly is comprised of bypass valve, motor, universal drive shaft, power transmission shaft four parts.Screw drill transmission shaft is one of vitals that forms helicoid hydraulic motor, is arranged on the lower end of universal drive shaft, is connected with drill bit, and its effect is that following drill bit is passed in the rotation that universal drive shaft transmits, and the kinetic energy that drilling tool is applied in is passed to drill bit.Therefore the TC bearing of power transmission shaft is at work because wearing and tearing are severe, cisco unity malfunction, must often change the TC bearing, the upper journal bearing overcoat of prior art and lower radial bearing overcoat are welded on respectively on upper bearing (metal) shell and the lower bearing shell, then must replace with cartridge housing and lower bearing shell during replacing, affect drilling progress, increased the financial burden of drilling team.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of screw drill transmission shaft assembly rational in infrastructure.
For solving this technical problem, the utility model provides a kind of screw drill transmission shaft assembly, by main shaft, upper journal bearing, lower radial bearing, the upper bearing (metal) shell, lower bearing shell and thrust bearing consist of, described main shaft is multidiameter, thrust bearing is arranged on the middle part of main shaft, be respectively arranged with journal bearing and lower radial bearing at the upper and lower side of this thrust bearing, upper journal bearing comprises again journal bearing overcoat and upper journal bearing inner sleeve, lower radial bearing comprises again lower radial bearing overcoat and lower radial bearing inner sleeve, upper journal bearing overcoat and lower radial bearing overcoat are interchangeable TC bearing, are fixed on the upper bearing (metal) shell and lower bearing shell in the outside with flat key respectively.
Be provided with lower hold-down nut and upper hold-down nut at the two ends of thrust bearing and upper journal bearing, the outside of this time hold-down nut also is provided with the bearing trimmer.
Beneficial effect: the utility model is compared with prior art rational in infrastructure, has stable drive, and the advantage of good reliability is keeped in repair easy, economical and practical.And then manufacturing enterprise increased competitiveness, and drilling team has reduced cost, has realized doulbe-sides' victory.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: journal bearing inner sleeve, 4 upper bearing (metal) shells, 5 thrust bearings, 6 bearing trimmers, 7 times hold-down nuts, 8 lower bearing shells, 9 lower radial bearing overcoats, 10 lower radial bearing inner sleeves, 11 main shafts and 12 flat keys on the journal bearing overcoat, 3 on the hold-down nut, 2 on 1.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is done specific descriptions.
Figure 1 shows that structural representation of the present utility model.
The utility model is made of main shaft 11, upper journal bearing, lower radial bearing, upper bearing (metal) shell 4, lower bearing shell 8 and thrust bearing 5.
Described main shaft 11 is multidiameter, and thrust bearing 5 is arranged on the middle part of main shaft 11, is respectively arranged with journal bearing and lower radial bearing at the upper and lower side of this thrust bearing 5.
Described upper journal bearing comprises again journal bearing overcoat 2 and upper journal bearing inner sleeve 3, and lower radial bearing comprises again lower radial bearing overcoat 9 and lower radial bearing inner sleeve 10.
Described upper journal bearing overcoat 2 and lower radial bearing overcoat 9 are interchangeable TC bearing, are fixed on the upper bearing (metal) shell 4 and lower bearing shell 8 in the outside with flat key 12 respectively.
The TC bearing is at work because wearing and tearing are severe, and cisco unity malfunction must often be changed the TC bearing, uses flat key 12 fixing then being convenient to change.
Be provided with lower hold-down nut 7 and upper hold-down nut 1 at the two ends of thrust bearing 5 and upper journal bearing, the outside of this time hold-down nut 7 also is provided with bearing trimmer 6.
The utility model upper end is connected with universal drive shaft, and the lower end is connected with drill bit, and the drill bit of lower end is passed in the rotation of during work the upper end universal drive shaft being transmitted, and the drilling tool applied pressure is passed to drill bit.The utility model compared with prior art structure is more reasonable, has stable drive, and the advantage of good reliability is keeped in repair easy, economical and practical.
The above-mentioned embodiment of the utility model just illustrates, and is not only, all in the utility model scope or the change that is equal in the scope of the present utility model all surrounded by the utility model.
Claims (2)
1. screw drill transmission shaft assembly, by main shaft (11), upper journal bearing, lower radial bearing, upper bearing (metal) shell (4), lower bearing shell (8) and thrust bearing (5) consist of, it is characterized in that: described main shaft (11) is multidiameter, thrust bearing (5) is arranged on the middle part of main shaft (11), upper and lower side at this thrust bearing (5) is respectively arranged with upper journal bearing and lower radial bearing, upper journal bearing comprises again journal bearing overcoat (2) and upper journal bearing inner sleeve (3), lower radial bearing comprises again lower radial bearing overcoat (9) and lower radial bearing inner sleeve (10), upper journal bearing overcoat (2) and lower radial bearing overcoat (9) are interchangeable TC bearing, use respectively flat key (12) to be fixed on the upper bearing (metal) shell (4) and lower bearing shell (8) in the outside.
2. screw drill transmission shaft assembly according to claim 1, it is characterized in that: be provided with lower hold-down nut (7) and upper hold-down nut (1) at the two ends of thrust bearing (5) and upper journal bearing, the outside of this time hold-down nut (7) also is provided with bearing trimmer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220462015.6U CN202788604U (en) | 2012-09-12 | 2012-09-12 | Drive shaft assembly of positive displacement motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220462015.6U CN202788604U (en) | 2012-09-12 | 2012-09-12 | Drive shaft assembly of positive displacement motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788604U true CN202788604U (en) | 2013-03-13 |
Family
ID=47815880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220462015.6U Expired - Lifetime CN202788604U (en) | 2012-09-12 | 2012-09-12 | Drive shaft assembly of positive displacement motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285456A (en) * | 2016-10-27 | 2017-01-04 | 西南石油大学 | A kind of combination type PDC thrust ball bearing long-life driving-shaft assembly |
-
2012
- 2012-09-12 CN CN201220462015.6U patent/CN202788604U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285456A (en) * | 2016-10-27 | 2017-01-04 | 西南石油大学 | A kind of combination type PDC thrust ball bearing long-life driving-shaft assembly |
| CN106285456B (en) * | 2016-10-27 | 2018-08-24 | 西南石油大学 | A kind of combined type PDC- thrust ball bearing long-lives driving-shaft assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102735444B (en) | Closed force flow type gear box abrasion oil liquid monitoring test stand | |
| CN104989808B (en) | Duplex helical gear transmission device in the middle of a kind of engine | |
| CN201526278U (en) | Low-speed large-torque screw drill tool | |
| CN204152424U (en) | A kind of down-hole helicoid hydraulic motor | |
| CN104120971A (en) | Torsion generator for providing one-way impact | |
| CN202788604U (en) | Drive shaft assembly of positive displacement motor | |
| CN203022654U (en) | Sealing type universal shaft for screw drilling tool | |
| CN203701971U (en) | Roller bit, roller drilling tool and rotary drilling rig | |
| CN106223839A (en) | Stator rubber anticreep helicoid hydraulic motor | |
| CN203023315U (en) | Novel coupler | |
| CN205977090U (en) | High -efficient anti screw rod drilling tool that dashes | |
| CN205945388U (en) | Moment of torsion clutch for coal -winning machine | |
| CN206329272U (en) | A kind of screw drill transmission shaft assembly | |
| CN203742462U (en) | Turbine drill device | |
| CN203066891U (en) | Flexible cardan shaft assembly in screw drill | |
| CN204200076U (en) | A kind of capacity turbo drilling tool turbine section | |
| CN101225738B (en) | Oil field down-hole rotary type mechanical transmission means | |
| CN204004333U (en) | Tunneling machine impact teeth roller box | |
| CN201047254Y (en) | Novel screw drilling tool | |
| CN204004031U (en) | A kind of for improving the connection set of dry method ball mill propeller boss connection reliability | |
| CN203321333U (en) | Modularized and combined cutter head and raise boring machine comprising same | |
| CN205977089U (en) | Screw rod drilling tool that shocks resistance | |
| CN204402346U (en) | A kind of screw rod drilling tool driving-shaft assembly | |
| CN206267789U (en) | Nearly drill bit driving-shaft assembly | |
| CN205089208U (en) | Drive sleeve for power head of rotary drilling rig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG DONGYUAN PETROLEUM EQUIPMENT CO., LTD. Free format text: FORMER NAME: ZOUCHENG DONGYUAN PETROLEUM MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 273500 south section of West Outer Ring Road, Jining City, Shandong, Zoucheng Patentee after: SHANDONG DONGYUAN PETROLEUM EQUIPMENT Co.,Ltd. Address before: 619, Xingye Road, Zoucheng Industrial Park, Shandong, Jining 273500, China Patentee before: ZOUCHENG DONGYUAN PETROLEUM MACHINERY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |