CN2510613Y - Screw-arbor drill driving-shaft assembly - Google Patents
Screw-arbor drill driving-shaft assembly Download PDFInfo
- Publication number
- CN2510613Y CN2510613Y CN 01260278 CN01260278U CN2510613Y CN 2510613 Y CN2510613 Y CN 2510613Y CN 01260278 CN01260278 CN 01260278 CN 01260278 U CN01260278 U CN 01260278U CN 2510613 Y CN2510613 Y CN 2510613Y
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- drive shaft
- shaft assembly
- screw drill
- pipe nipple
- 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
Landscapes
- Flexible Shafts (AREA)
Abstract
The utility model discloses a drive shaft assembly for a screw drill tool, which comprises a drive shaft, a drive shaft shell, a radial bearing, a thrust bearing group, a lower pup joint, and a water hat. The drive shaft supported by the radial bearing and the thrust bearing group is positioned in the drive shaft shell, and can revolve round the axis. The axial clearance adjustment structure of the thrust bearing group is that the lower end of the thrust bearing group is installed with the lower pup joint, and the lower pup joint and the drive shaft use the mode of thread connection. The lower pup joint is provided with a locking nut thereon, and an O-type seal ring is arranged between the locking nut and the lower pup joint; an anti-dropping device of the drive shaft is composed of a semi-ring whose outer surface has a lug boss and a sheath sleeved on the anti-dropping device, and the semi-ring is installed in a concave groove of the drive shaft, and an O-type seal ring is arranged between the sheath and the drive shaft. The drive shaft assembly for the screw drill tool has simple structure, and can eliminate the axial clearance of the thrust bearing group through the stepless adjustment, and the anti-dropping structure is reasonable and easy for assembly and maintenance.
Description
(1) technical field
The utility model relates to the down-hole helicoid hydraulic motor that a kind of oil drilling or well workover are used, and particularly relates to a kind of driving-shaft assembly of helicoid hydraulic motor.
(2) background technology
A kind of mud motor that helicoid hydraulic motor uses when being recover petroleum or well workover, mainly comprise motor assembly, universal drive shaft assembly, by-pass valve assembly and driving-shaft assembly, driving-shaft assembly wherein comprises power transmission shaft, transmission shaft shell, journal bearing, thrust bearings, water cap, following pipe nipple.At present, there are following two aspect deficiencies in screw drill transmission shaft assembly (as shown in Figure 1) on the market:
1. thrust bearing is made up of Jing Quan, moving-coil and ball in the driving-shaft assembly, and the end play adjustment of thrust bearing all adopts pad to adjust mode, promptly relies on the adjustment pad of matching different-thickness to control the size of the end play of thrust bearing.Adopt this method of adjustment, the adjustment pad that not only needs a large amount of different-thickness sizes is for apolegamy, and because the fixed size of pad, when apolegamy, will inevitably produce error, be difficult to eliminate the end play of thrust bearing, also increased the quantity of accessory simultaneously, sometimes for the adjusting play, need test, dismounting repeatedly, particularly in the maintenance of helicoid hydraulic motor after use, when especially not keeping in repair in original production producer, the adjustment of the end play of its thrust bearing is difficult to reach the designing requirement of product, and the complete machine that has had a strong impact on helicoid hydraulic motor uses.
2. the drive shafts fracture accident in use takes place in helicoid hydraulic motor sometimes.Prevent to drop to behind the drive shafts fracture the anti-lost structure of down-hole in the driving-shaft assembly, all adopt appearance to wear the anti-lost nut and the power transmission shaft screw connection structure of boss.The screw thread of this structure is fragile, damages the anti-lost poor performance in back, and anti-lost nut is difficult to dismounting after the thread damage, also can cause power transmission shaft to scrap after the thread damage of power transmission shaft.
(3) summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, provide a kind of rational in infrastructure, performance good, be convenient to operate, the easy to maintenance and screw drill transmission shaft assembly that not influenced by accessory.
In order to achieve the above object, the end play of thrust bearing adjustment structure is in the utility model screw drill transmission shaft assembly, in the lower end of thrust bearings pipe nipple is once arranged, following pipe nipple adopts with transmission shaft shell and is threaded, control thrust bearing end play by the axial location of adjusting down pipe nipple and transmission shaft shell, and on the pipe nipple locking nut is being housed down, and this structure can reach the purpose of adjusting thrust bearings end play by stepless adjustment, and its minimum clearance can be adjusted into 0.
Another improvements of the utility model screw drill transmission shaft assembly are, the anti-lost structure of its power transmission shaft comprises semi-ring that is installed in the band boss in the groove on the power transmission shaft and the sheath that is used for fixing the semi-ring position, and the boss on the semi-ring is positioned at the middle part of semi-ring external surface.
(4) description of drawings
Fig. 1 is known screw drill transmission shaft assembly structure schematic diagram.
Fig. 2 is a screw drill transmission shaft assembly structure schematic diagram of the present utility model.
(5) specific embodiment
With reference to Fig. 1.Fig. 1 is known screw drill transmission shaft assembly structure schematic diagram.1 is that pipe nipple, 3 and 7 was that journal bearing, 4 is that anti-lost nut, 5 is that thrust bearings, 6 is that adjustment pad, 8 is that transmission shaft shell, 9 is the water cap under power transmission shaft, 2 was among the figure.
With reference to Fig. 2.Fig. 2 is a screw drill transmission shaft assembly structure schematic diagram of the present utility model.11 is that power transmission shaft, 12 is that pipe nipple, 13 and 22 is for journal bearing, 21 is that thrust bearings, 23 is that transmission shaft shell, 24 is the water cap down among the figure, and power transmission shaft is supported by journal bearing and thrust bearing and is positioned at transmission shaft shell, and can rotate around axis.The end play of thrust bearings 21 is adjusted structure for pipe nipple 12 is once arranged in the lower end of thrust bearings 21, following pipe nipple 12 is threaded with transmission shaft shell 23 usefulness, by rotating pipe nipple 12 down, the axial location of pipe nipple 12 and transmission shaft shell 23 is controlled the end play of thrust bearings 21 under adjusting; Locking nut 15 and following pipe nipple 12 are formed the retaining mechanism of adjusting plays, after the end play adjustment of thrust bearings 21 finishes, locking nut 15 is screwed, the lower surface of locking nut 15 upper surfaces and transmission shaft shell 22 is adjacent to, avoids down the pipe nipple 12 and the axial location of transmission shaft shell 23 to change; Between locking nut 15 and the following pipe nipple 12 O RunddichtringO 14 is installed, prevents that drilling fluid from entering in power transmission shaft 11 and the transmission shaft shell 22 formed cavitys; Between the lower end of thrust bearing 21 and the following pipe nipple 12 spacer 20 is installed, reduces the damage of short circuit 12 down.
The anti-lost structure of power transmission shaft 11 comprises semi-ring 18 and sheath 16,19 in the utility model screw drill transmission shaft assembly, the external surface middle part of semi-ring 18 has boss, and be installed on the power transmission shaft 11 in the groove, sheath 16,19 is enclosed within the two ends of semi-ring 18 respectively, the position that is used for fixing semi-ring 18, when power transmission shaft in use ruptures, and fracture location is positioned at the top of semi-ring, and the boss of semi-ring 18 can effectively stop the continuation of power transmission shaft to be fallen; Between sheath 16,19 and the power transmission shaft 11 O RunddichtringO 17 is housed, prevents that liquid from entering, sting bad power transmission shaft 11 or semi-ring 18.
Claims (6)
1. screw drill transmission shaft assembly, comprise power transmission shaft, transmission shaft shell, journal bearing, thrust bearings, following pipe nipple, water cap, power transmission shaft is supported by journal bearing and thrust bearing and is positioned at transmission shaft shell, can rotate around axis, it is characterized in that: the end play of described thrust bearings (21) is adjusted structure and is, in the lower end of thrust bearings (21) the following pipe nipple (12) that is connected with transmission shaft shell (23) is housed, locking nut (15) is housed on the following pipe nipple (12).
2. screw drill transmission shaft assembly according to claim 1, it is characterized in that, the anti-lost structure of described power transmission shaft (11) wear the semi-ring (18) of boss by appearance and be enclosed within its outside sheath (16,19) form, semi-ring (18) is installed in the groove of power transmission shaft (11).
3. screw drill transmission shaft assembly according to claim 1 and 2 is characterized in that, described pipe nipple (12) down adopts with transmission shaft shell (23) and is threaded.
4. screw drill transmission shaft assembly according to claim 3 is characterized in that, between described pipe nipple (12) down and the locking nut (15) O RunddichtringO (14) is installed.
5. screw drill transmission shaft assembly according to claim 4 is characterized in that, between described pipe nipple (12) down and the thrust bearings (21) spacer (20) is installed.
6. according to any one described screw drill transmission shaft assembly in the claim 2 to 5, it is characterized in that, between described sheath (16,19) and the power transmission shaft (11) O RunddichtringO (17) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260278 CN2510613Y (en) | 2001-09-27 | 2001-09-27 | Screw-arbor drill driving-shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260278 CN2510613Y (en) | 2001-09-27 | 2001-09-27 | Screw-arbor drill driving-shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2510613Y true CN2510613Y (en) | 2002-09-11 |
Family
ID=33668465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01260278 Expired - Lifetime CN2510613Y (en) | 2001-09-27 | 2001-09-27 | Screw-arbor drill driving-shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2510613Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196440A (en) * | 2014-07-11 | 2014-12-10 | 江汉石油钻头股份有限公司 | Sealing-type screw drill transmission shaft assembly |
| CN106402147A (en) * | 2016-10-13 | 2017-02-15 | 潍坊市宇宏石油机械有限公司 | Novel TC bearing combination for screw drill and production technology of TC bearing rings of TC bearing combination |
| CN109025962A (en) * | 2018-07-31 | 2018-12-18 | 天津立林石油机械有限公司 | Helicoid hydraulic motor composite record analyzer |
-
2001
- 2001-09-27 CN CN 01260278 patent/CN2510613Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196440A (en) * | 2014-07-11 | 2014-12-10 | 江汉石油钻头股份有限公司 | Sealing-type screw drill transmission shaft assembly |
| CN106402147A (en) * | 2016-10-13 | 2017-02-15 | 潍坊市宇宏石油机械有限公司 | Novel TC bearing combination for screw drill and production technology of TC bearing rings of TC bearing combination |
| CN109025962A (en) * | 2018-07-31 | 2018-12-18 | 天津立林石油机械有限公司 | Helicoid hydraulic motor composite record analyzer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2510613Y (en) | Screw-arbor drill driving-shaft assembly | |
| CN201620756U (en) | Transmission shaft assembly of screw drilling rig capable of automatically compensating end play | |
| CN201486465U (en) | Screw drill motor rotor anti-falling device | |
| CN201293083Y (en) | Unfolding aheading speed reducer for hydraulic coupling | |
| CN202348138U (en) | Anti-fall joint structure of screw drill tool | |
| CN2229550Y (en) | Bottomhole reducer for oil well | |
| CN201326520Y (en) | Driving device of wind turbine using built-in main shaft type gear box | |
| CN203285359U (en) | Positive displacement drill arc-shaped pin roller ball hinge joint universal shaft | |
| CN2534358Y (en) | Helicoid drill seal ball hinge joint multiple direction shaft | |
| CN2775277Y (en) | Power head structure device | |
| CN2739455Y (en) | Built-in compensating structure for rotary joint | |
| CN2918863Y (en) | Universal transmission gear | |
| CN2900756Y (en) | Radial bearing anti-rotation device under screw drill driving shaft | |
| CN112412983B (en) | Gap adjusting shaft sleeve for support and rotary rocker arm | |
| CN201120602Y (en) | Trip mechanism for overcurrent protection of electric hammer | |
| CN201129331Y (en) | Large-expansion-ratio mechanical self-locking erecting mechanism | |
| CN205689695U (en) | A kind of decelerator | |
| CN2810907Y (en) | Tripping device for overload protection of electric hammer | |
| CN219881482U (en) | Milling cutter blade for gear machining | |
| CN2353880Y (en) | Follow-up-centring polish-rod sealer for oil-pumping well mouth | |
| CN2627205Y (en) | Novel lower plug indicator for cementing-head apparatus | |
| CN2264802Y (en) | Screw drilling tool | |
| CN220869336U (en) | High leakproofness is tubing coupling in pit | |
| CN203729867U (en) | Anti-dropping transmission shaft assembly for screw drilling tool | |
| CN202017754U (en) | Combined gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: DAGANG OIL FIELD GROUP CO., LTD. Owner name: CNPC BOHAI PETROLEUM EQUIPMENT MANUFACTURING CO., Free format text: FORMER OWNER: DAGANG OILFIELD GROUP, ZHONGCHENG MACHINERY MANUFACTURING CO., LTD. Effective date: 20100920 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300280 (CARE OF) YU HONGBIN, DAGANG OILFIELD, TIANJIN CITY TO: 300280 CHUANGANG ROAD, DAGANG OILFIELD, DAGANG DISTRICT, TIANJIN CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100920 Address after: 300280 Tianjin City, Grand Port Dagang Oilfield Sichuan Road Patentee after: CNPC Bohai Equipment Manufacturing Co., Ltd. Address before: 300280 Dagang Oilfield, Tianjin, Yu Hongbin Co-patentee before: Dagang Oil Field Group Co., Ltd. Patentee before: Dagang Oilfield Group, Zhongcheng Machinery Manufacturing Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110927 Granted publication date: 20020911 |