CN205154004U - Oil seal transmission shaft device of screw rod drilling tool - Google Patents
Oil seal transmission shaft device of screw rod drilling tool Download PDFInfo
- Publication number
- CN205154004U CN205154004U CN201520952925.6U CN201520952925U CN205154004U CN 205154004 U CN205154004 U CN 205154004U CN 201520952925 U CN201520952925 U CN 201520952925U CN 205154004 U CN205154004 U CN 205154004U
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- power transmission
- axle sleeve
- screw rod
- sleeve housing
- 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 - Fee Related
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Abstract
The utility model discloses an oil seal transmission shaft device of screw rod drilling tool, including the transmission shaft, transmission shaft one end is the screw rod link of being connected with the screw rod, and the transmission shaft other end is the drill bit link of being connected with the drill bit, and the transmission shaft is outward removable axle sleeve casing, and is fixed through bearing turning position between transmission shaft and the axle sleeve casing, the axle sleeve casing the drill bit of transmission shaft connect distolaterally and the transmission shaft between through the rotary seal of " O " type circle, the axle sleeve casing the screw rod of transmission shaft connect distolaterally and the transmission shaft between through portable float rotary seal, compared with the prior art, the utility model discloses simple structure, the processing preparation is convenient, easily the maintenance, through portable float rotary seal, the oil seal intracavity effectively reduces each part wearing and tearing to solve the short problem of drill tool life, and then prolonged the life of drilling tool.
Description
Technical field
The utility model belongs to drilling equipment, particularly a kind of oil seal transmission shaft device of helicoid hydraulic motor, is a kind of oil seal transmission shaft assembly of helicoid hydraulic motor.
Background technology
Helicoid hydraulic motor is a kind of hydraulic machine, it is the energy conversion device that a kind of pressure energy liquid is converted to mechanical energy, also referred to as positive displacement motor (PDM), there is the characteristic of low-speed big, being one of down-hole equipment commonly used in current drilling engineering, is also the most widely used a kind of mud motor.
The helicoid hydraulic motor of oil drilling or well workover, by by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly composition, the parts such as driving-shaft assembly wherein mainly comprises water cap, power transmission shaft, transmission shaft shell, upper lower radial bearing, thrust bearing form.The frame for movement of existing power transmission shaft, in a multiple stage shoulder slender axles structure.The stressing conditions of power transmission shaft is complicated, mainly contains dynamic torque, lateral force, axial force etc.; At present when using powerful motor, because output torque is comparatively large, on power transmission shaft, each component wear is serious, and decrease the application life of helicoid hydraulic motor, its sealing is the key factor causing this result.
Summary of the invention
The purpose of this utility model is the oil seal transmission shaft device providing a kind of helicoid hydraulic motor, by the improvement to hermetically-sealed construction, there is provided a kind of structure simple, safe and reliable, the oil seal transmission shaft assembly of nonabradable helicoid hydraulic motor, to overcome the defect existed in prior art, to extend drilling tool application life.
The purpose of this utility model is achieved through the following technical solutions.
A kind of oil seal transmission shaft device of helicoid hydraulic motor, comprise power transmission shaft, power transmission shaft one end is the screw rod link be connected with screw rod, the power transmission shaft other end is the drill bit link be connected with drill bit, it is replaceable axle sleeve housing outside power transmission shaft, fixed by bearing rotational positioning between power transmission shaft and axle sleeve housing, axle sleeve housing is in the rotary seal between two ends and power transmission shaft up and down of bearing, axle sleeve housing is provided with the passage to bearing oiling, wherein, described axle sleeve housing connects between side and power transmission shaft by "O"-ring rotary seal at the drill bit of power transmission shaft, described axle sleeve housing connects between side and power transmission shaft by removable float rotary seal at the screw rod of power transmission shaft, the pouring orifice of oiling passage is arranged on the power transmission shaft drill bit connection side of described axle sleeve housing.
Scheme is further: described axle sleeve housing connects side at the drill bit of power transmission shaft and has been threaded connection lower stationary ring lasso, and described pouring orifice and "O"-ring are arranged on lower stationary ring lasso.
Scheme is further: described power transmission shaft is provided with rotating ring lasso at screw rod link side external surface, described axle sleeve housing is provided with circular bore between the screw rod connection side and upper rotating ring lasso of power transmission shaft, vestibule is communicated with bearing, described float is the telescopic elastic circle of at least two circles, what elastic ring can move axially is arranged in cavity, between elastic ring mutual dislocation by vestibule along power transmission shaft axial seal.
Compared with prior art, the beneficial effects of the utility model: structure is simple, processing and fabricating is convenient, for ease of maintenaince; By removable float rotary seal, effectively reduce each component wear in oil seal chamber, thus solve the short problem of drill tool life, and then extend the application life of drilling tool.
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Detailed description of the invention
A kind of oil seal transmission shaft device of helicoid hydraulic motor, as shown in Figure 1, comprise power transmission shaft 1, power transmission shaft one end is the screw rod link be connected with screw rod, the power transmission shaft other end is the drill bit link be connected with drill bit, it is replaceable axle sleeve housing 8 outside power transmission shaft, fixed by bearing 7 rotational positioning between power transmission shaft and axle sleeve housing, its bearing is angular contact bearing group (thrust bearing), axle sleeve housing is in the rotary seal between two ends and power transmission shaft up and down of bearing, axle sleeve housing is provided with the passage to bearing oiling, wherein, described axle sleeve housing connects between side and power transmission shaft by "O"-ring 16 rotary seal at the drill bit of power transmission shaft, described axle sleeve housing connects between side and power transmission shaft by the rotary seal of removable float 15 at the screw rod of power transmission shaft, the pouring orifice 17 of oiling passage is arranged on the power transmission shaft drill bit connection side of described axle sleeve housing.
In embodiment: described axle sleeve housing connects side at the drill bit of power transmission shaft and has been threaded connection lower stationary ring lasso 10, and described pouring orifice and "O"-ring are arranged on lower stationary ring lasso.Certainly between lower stationary ring lasso and power transmission shaft, lower rotating ring lasso 2 is provided with, lower rotating ring lasso is fixed on power transmission shaft by screw thread and rotates together with power transmission shaft, wherein said "O"-ring is at least two, is also sequentially set with Bearing housing 12, spacer 4, semi-ring 11, is arranged on "O"-ring 13 and 14 between lower stationary ring lasso and semi-ring between bearing and lower stationary ring lasso.
In embodiment: described power transmission shaft is provided with rotating ring lasso 9 at screw rod link side external surface, described axle sleeve housing is provided with circular bore between the screw rod connection side and upper rotating ring lasso of power transmission shaft, vestibule is communicated with bearing, described float is the telescopic elastic circle of at least two circles, what elastic ring can move axially is arranged in cavity, between elastic ring mutual dislocation by vestibule along power transmission shaft axial seal; Have on upper rotating ring lasso adjustment pad 6, be also sequentially set with between bearing and upper rotating ring lasso woodruff key 5, on quiet circle 3.Upper Jing Quan is fastened on driving sleeve housing by woodruff key.
During work, inject oil by pouring orifice 17, cavity fills rear promotion float 15 and is stuck in moving-coil 9, reaches sealing function.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the oil seal transmission shaft device of a helicoid hydraulic motor, comprise power transmission shaft, power transmission shaft one end is the screw rod link be connected with screw rod, the power transmission shaft other end is the drill bit link be connected with drill bit, it is replaceable axle sleeve housing outside power transmission shaft, fixed by bearing rotational positioning between power transmission shaft and axle sleeve housing, axle sleeve housing is in the rotary seal between two ends and power transmission shaft up and down of bearing, axle sleeve housing is provided with the passage to bearing oiling, it is characterized in that, described axle sleeve housing connects between side and power transmission shaft by "O"-ring rotary seal at the drill bit of power transmission shaft, described axle sleeve housing connects between side and power transmission shaft by removable float rotary seal at the screw rod of power transmission shaft, the pouring orifice of oiling passage is arranged on the power transmission shaft drill bit connection side of described axle sleeve housing.
2. driveline according to claim 1, is characterized in that, described axle sleeve housing connects side at the drill bit of power transmission shaft and has been threaded connection lower stationary ring lasso, and described pouring orifice and "O"-ring are arranged on lower stationary ring lasso.
3. driveline according to claim 1, it is characterized in that, described power transmission shaft is provided with rotating ring lasso at screw rod link side external surface, described axle sleeve housing is provided with circular bore between the screw rod connection side and upper rotating ring lasso of power transmission shaft, vestibule is communicated with bearing, described float be at least two circle telescopic elastic circles, what elastic ring can move axially is arranged in cavity, between elastic ring mutual dislocation by vestibule along power transmission shaft axial seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520952925.6U CN205154004U (en) | 2015-11-26 | 2015-11-26 | Oil seal transmission shaft device of screw rod drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520952925.6U CN205154004U (en) | 2015-11-26 | 2015-11-26 | Oil seal transmission shaft device of screw rod drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154004U true CN205154004U (en) | 2016-04-13 |
Family
ID=55689712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520952925.6U Expired - Fee Related CN205154004U (en) | 2015-11-26 | 2015-11-26 | Oil seal transmission shaft device of screw rod drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154004U (en) |
-
2015
- 2015-11-26 CN CN201520952925.6U patent/CN205154004U/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 | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170727 Granted publication date: 20160413 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200727 Granted publication date: 20160413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20181126 |