CN201588534U - Sealing transmission shaft for screw drilling tool - Google Patents
Sealing transmission shaft for screw drilling tool Download PDFInfo
- Publication number
- CN201588534U CN201588534U CN2009202901276U CN200920290127U CN201588534U CN 201588534 U CN201588534 U CN 201588534U CN 2009202901276 U CN2009202901276 U CN 2009202901276U CN 200920290127 U CN200920290127 U CN 200920290127U CN 201588534 U CN201588534 U CN 201588534U
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- CN
- China
- Prior art keywords
- transmission shaft
- sealing
- bearing
- sliding bearing
- power transmission
- 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
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Abstract
The utility model discloses a sealing transmission shaft for screw drilling tool, including a transmission shaft and a housing body packaged on the transmission shaft, wherein slide bearings are provided at the both ends of the housing body and the transmission shaft, the slide bearings include an interior bushing bearing and an outer bushing bearing corresponding to the interior bushing bearing, the interior bushing bearing is mounted on the transmission shaft, a sealing device is provided between the interior bushing bearing and housing body, a first needle bearing, a bearing group and a second needle bearing are mounted in sequence between the two sealing devices; the sealing device makes the sealing transmission shaft for screw drilling tool has better lubricating and cooling effect, to greatly reduce friction coefficient, and extend the bearing service life; the use of the needle bearing changes the former sliding friction into a mode of playing a main part of rolling friction, also reduces the friction coefficient and extends the service life.
Description
Technical field
The utility model relates to a kind of helicoid hydraulic motor with sealing power transmission shaft.
Background technology
At present, bearing in the screw drill transmission shaft device mostly is open or adopts the conventional seals mode, Open architecture, bearing all is lubricated with drilling mud fluid, owing to contain solid formation in the drilling mud fluid, in lubricating bearings, also damaging bearing, sealing effectiveness is undesirable, and existing screw drill transmission shaft device is short application life, generally has only about 150 hours, the damage of driveline has had a strong impact on the work of helicoid hydraulic motor complete machine.
The utility model content
Technical problem to be solved in the utility model provides a kind of good sealing effect, reduces friction factor, increases the helicoid hydraulic motor in application life with sealing power transmission shaft.
For solving the problems of the technologies described above, the technical solution of the utility model is: helicoid hydraulic motor is with sealing power transmission shaft, comprise power transmission shaft and the shell body that is sleeved on the described power transmission shaft, be provided with sliding bearing between the two ends of described shell body and the described power transmission shaft, in described sliding bearing comprises radially sliding bearing and with described in outer radial sliding bearing that radially sliding bearing is corresponding, in described radially sliding bearing be installed on the described power transmission shaft, radially be provided with sealing device between sliding bearing and the shell body in described, between the two described sealing devices first needle bearing be installed successively, the bearing group and second needle bearing.
As optimized technical scheme, described outer radial rolling bearing is installed on the pipe nipple inner peripheral surface, and described pipe nipple is threaded on the described shell body, described sealing device be installed in described pipe nipple and described in radially between the sliding bearing.
As optimized technical scheme, described sealing device comprises sealing block, seal washer and the seal that sets gradually.
As optimized technical scheme, described sealing block and described outer radial sliding bearing are integral structure.
As optimized technical scheme, the inner peripheral surface of described sealing block is provided with sealing ring.
As optimized technical scheme, described sliding bearing is a carbide sliding bearing.
Owing to adopted technique scheme, helicoid hydraulic motor is with sealing power transmission shaft, comprise power transmission shaft and the shell body that is sleeved on the described power transmission shaft, be provided with sliding bearing between the two ends of described shell body and the described power transmission shaft, in described sliding bearing comprises radially sliding bearing and with described in outer radial sliding bearing that radially sliding bearing is corresponding, in described radially sliding bearing be installed on the described power transmission shaft, radially be provided with sealing device between sliding bearing and the shell body in described, between the two described sealing devices first needle bearing be installed successively, the bearing group and second needle bearing; Sealing device makes helicoid hydraulic motor can adopt lubricant grease to be lubricated with the sealing power transmission shaft, and is lubricated better with cooling effect, significantly reduced friction factor, prolonged the application life of bearing; The use of needle bearing becomes based on rolling friction original sliding friction, has reduced friction factor equally, has prolonged application life.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
The partial enlarged drawing at I place among Fig. 2 Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, helicoid hydraulic motor is with sealing power transmission shaft, comprise power transmission shaft 1 and the shell body 7 that is sleeved on the described power transmission shaft, be provided with sliding bearing between the two ends of described shell body 7 and the described power transmission shaft 1, described sliding bearing comprises first sliding bearing 3 and second sliding bearing 4, the threaded one end of described shell body 7 is connected with pipe nipple 10, first sliding bearing 3 is installed between described pipe nipple 10 and the described power transmission shaft 1, be provided with second sliding bearing 4 between the other end of described shell body 7 and the described power transmission shaft 1, sealing device comprises first sealing device 16 and second sealing device 15, be provided with second sealing device 15 between the interior radially sliding bearing 41 of described second sliding bearing and the described shell body 7, be provided with first sealing device 16 between the interior radially sliding bearing 31 of described first sliding bearing 3 and the described pipe nipple 10, between described first sealing device 16 and described second sealing device 15, first needle bearing 8 is installed successively on the described power transmission shaft 1, the bearing group 6 and second needle bearing 5, described sealing device comprises the sealing block 11 that sets gradually, seal washer 12 and seal 13, the outer radial sliding bearing 41 of the sealing block of described second sealing device 15 and second sliding bearing is an integral structure, and the inner peripheral surface of described sealing block 11 is provided with sealing ring 14.Described sliding bearing is a carbide sliding bearing.
During work, be full of lubrication oil between first sealing device 16 and second sealing device 15, helicoid hydraulic motor lubricates with lubricant grease and cooling with the transmission of sealing power transmission shaft, has reduced friction factor so greatly, has prolonged the application life of its bearing.The use of needle bearing simultaneously becomes based on rolling friction original sliding friction, has reduced friction factor equally, has prolonged nearly six times of application life.
Above-described only is preferred implementation of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, distortion of having done and improvement also should be considered as protection domain of the present utility model.
Claims (6)
1. helicoid hydraulic motor is with sealing power transmission shaft, comprise power transmission shaft and the shell body that is sleeved on the described power transmission shaft, be provided with sliding bearing between the two ends of described shell body and the described power transmission shaft, in described sliding bearing comprises radially sliding bearing and with described in outer radial sliding bearing that radially sliding bearing is corresponding, in described radially sliding bearing be installed on the described power transmission shaft, it is characterized in that: radially be provided with sealing device between sliding bearing and the shell body in described, first needle bearing, bearing group and second needle bearing are installed between the two described sealing devices successively.
2. helicoid hydraulic motor as claimed in claim 1 is with sealing power transmission shaft, it is characterized in that: described outer radial rolling bearing is installed on the pipe nipple inner peripheral surface, described pipe nipple is threaded on the described shell body, described sealing device be installed in described pipe nipple and described in radially between the sliding bearing.
3. helicoid hydraulic motor as claimed in claim 1 or 2 is with sealing power transmission shaft, and it is characterized in that: described sealing device comprises sealing block, seal washer and the seal that sets gradually.
4. helicoid hydraulic motor as claimed in claim 3 is with sealing power transmission shaft, and it is characterized in that: described sealing block and described outer radial sliding bearing are integral structure.
5. helicoid hydraulic motor as claimed in claim 3 is with sealing power transmission shaft, and it is characterized in that: the inner peripheral surface of described sealing block is provided with sealing ring.
6. helicoid hydraulic motor as claimed in claim 1 is with sealing power transmission shaft, and it is characterized in that: described sliding bearing is a carbide sliding bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202901276U CN201588534U (en) | 2009-12-16 | 2009-12-16 | Sealing transmission shaft for screw drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202901276U CN201588534U (en) | 2009-12-16 | 2009-12-16 | Sealing transmission shaft for screw drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588534U true CN201588534U (en) | 2010-09-22 |
Family
ID=42748312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202901276U Expired - Lifetime CN201588534U (en) | 2009-12-16 | 2009-12-16 | Sealing transmission shaft for screw drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588534U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268962A (en) * | 2011-08-09 | 2011-12-07 | 西南石油大学 | Oil seal screw drilling tool transmission shaft assembly with pressure compensation function |
| 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 |
| CN104533281A (en) * | 2014-12-09 | 2015-04-22 | 沈阳工业大学 | Oil seal PDM (positive displacement motor) drill |
-
2009
- 2009-12-16 CN CN2009202901276U patent/CN201588534U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268962A (en) * | 2011-08-09 | 2011-12-07 | 西南石油大学 | Oil seal screw drilling tool transmission shaft assembly with pressure compensation function |
| 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 |
| CN104533281A (en) * | 2014-12-09 | 2015-04-22 | 沈阳工业大学 | Oil seal PDM (positive displacement motor) drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100922 |
|
| CX01 | Expiry of patent term |