CN204591121U - The helicoid hydraulic motor of drilling well - Google Patents
The helicoid hydraulic motor of drilling well Download PDFInfo
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- CN204591121U CN204591121U CN201520126412.XU CN201520126412U CN204591121U CN 204591121 U CN204591121 U CN 204591121U CN 201520126412 U CN201520126412 U CN 201520126412U CN 204591121 U CN204591121 U CN 204591121U
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- bearing
- stationary ring
- bear box
- diamond compact
- transmission shaft
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Abstract
The utility model relates to a kind of helicoid hydraulic motor of drilling well, and it comprises by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly; Driving-shaft assembly comprises the floating type thrust bearing of transmission shaft shell, power transmission shaft and entirety; Overall floating type thrust bearing comprises a bear box, multiple bearing rotating ring and multiple bearing stationary ring; Between every two bearings rotating ring, an axle sleeve is set, bearing rotating ring and the equal adapter sleeve of axle sleeve are connected on power transmission shaft, on each axle sleeve, equal interval is nested with two bearings stationary ring, bear box inwall between two bearings stationary ring arranges a collar flange, a damping storage bodies is set respectively between collar flange and two bearings stationary ring; The lateral wall of each bearing stationary ring offers multiple axial arranged elongated slot along bear box, and connect a screw being positioned on the right bear box of each elongated slot, the end of screw is stretched in elongated slot; All enclose diamond compact by two between each bearing stationary ring with bearing rotating ring to match, wherein a circle diamond compact is arranged on bearing stationary ring, and another circle diamond compact is arranged on bearing rotating ring.
Description
Technical field
The utility model relates to a kind of helicoid hydraulic motor of drilling well, belongs to drilling tool technical field.
Background technology
At present, drilling process many uses helicoid hydraulic motor of oil, natural gas exploration and development, helicoid hydraulic motor is formed primarily of the by-pass valve assembly connected successively, motor assembly, universal drive shaft assembly and driving-shaft assembly.There is the deficiency of several respects in existing this helicoid hydraulic motor: thrust bearing many employings ball diagonal angle bearing the first, in driving-shaft assembly (also claiming string bearing), this bearing corrosion resistance and abrasion resistance all more weak, working life is short; Also paid trial-ray method diamond sliding thrust bearing, but its impact resistance is weak, and under alternating shock load, working life is short, and unstable.The second, the stator in motor assembly is primarily of the formations such as wall thickness rubber bushing such as non-, and its obvious problem is that the additional deformation of rubber bushing is large, heat production is many, heat radiation is slow, conversion efficiency is low, is therefore difficult to meet work requirements.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of helicoid hydraulic motor of drilling well with corrosion-resistant, anti scuffing, shock resistance, thrust bearing structure that supporting capacity is strong.
For achieving the above object, the utility model takes following technical scheme: a kind of helicoid hydraulic motor of drilling well, and it comprises the by-pass valve assembly, motor assembly, universal drive shaft assembly and the driving-shaft assembly that connect successively; It is characterized in that: described driving-shaft assembly comprises the power transmission shaft thrust bearing floating type with the entirety being connected described power transmission shaft and described transmission shaft shell of transmission shaft shell, hollow; The floating type thrust bearing of described entirety comprises one and is fastenedly connected at described transmission shaft shell inwall and tubular bear box, is multiplely positioned at the bearing rotating ring of described bear box and multiple bearing stationary ring being positioned at described bear box; Between every two described bearing rotating rings, an axle sleeve is set, described bearing rotating ring and the equal adapter sleeve of axle sleeve are connected on described power transmission shaft, on axle sleeve described in each, equal interval is nested with two described bearing stationary rings, described bear box inwall between two described bearing stationary rings arranges a collar flange, described in described collar flange and two, a damping storage bodies is being set between bearing stationary ring respectively; Described in each bearing stationary ring lateral wall on offer multiple described axial arranged elongated slot along bear box, connect a screw being positioned on the right described bear box of elongated slot described in each, the end of described screw is stretched in described elongated slot; Bearing stationary ring described in each is all matched by two groups of diamond compacts with between described bearing rotating ring, and wherein the described diamond compact of a circle is arranged on described bearing stationary ring, and another encloses described diamond compact and is arranged on described bearing rotating ring.
Described damping storage bodies is rubber bodies or spring.
Described motor assembly comprises stator, rotor and the sulfuration rubber bushing on described stator inner hole, and the inner hole surface of described rotor and the internal face of described rubber bushing are spiral camber, and described rubber bushing has uniform thickness.
Each encloses described diamond compact and is multiple edge circumferentially equally distributed cylindrical diamond compact.
The utility model is owing to taking above technical scheme, it has the following advantages: 1, the floating type thrust bearing of entirety of the present utility model is provided with multiple bearing rotating ring and bearing stationary ring in bear box, wherein, bearing rotating ring adapter sleeve is connected on power transmission shaft, bearing stationary ring is limited in bear box, and flange is provided with in bear box, damping storage bodies is provided with between flange and bearing stationary ring, therefore, the utility model in use, the direction change point of axial alternating shock load is transferred on damping storage bodies by the frictional interface of diamond compact sliding friction pair, avoid and directly impact diamond compact, application life can promote significantly, meanwhile, axial load is delivered on bear box by rotating ring, stationary ring, damping storage bodies and multiple flange, substantially increases the axial carrying capacity of whole bearing body.2, the floating type thrust bearing of entirety of the present utility model adopts diamond compact as sliding friction pair, has stronger to hold corrosion resistance and abrasion resistance.3, the inner hole surface of stator is set to spiral camber by motor assembly of the present utility model, therefore, the rubber bushing of direct sulfuration in inner hole surface can be uniform thickness, thus additional deformation is little under operational loading, heat production is few, rapid heat dissipation to make rubber bushing, and motor transformation efficiency also can be made to have larger lifting.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of the overall floating type thrust bearing of the utility model;
Fig. 3 is the structural representation of the utility model motor assembly.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in detail.
Embodiment one:
As shown in Figure 1, helicoid hydraulic motor in the present embodiment comprises the by-pass valve assembly 1, motor assembly 2, universal drive shaft assembly 3 and the driving-shaft assembly 4 that connect successively, wherein, driving-shaft assembly 4 comprises the power transmission shaft 42 of transmission shaft shell 41, hollow, and the floating type thrust bearing 43 of entirety of connection for transmission axle 42 and transmission shaft shell 41.
As shown in Figure 2, overall floating type thrust bearing 43 comprises one and is fastenedly connected at transmission shaft shell 41 inwall and tubular bear box 431, is multiplely positioned at the bearing rotating ring 432 of bear box 431 and multiple bearing stationary ring 433 being positioned at bear box 431.Between every two bearing rotating rings 432, an axle sleeve 434 is set, and bearing rotating ring 432 and axle sleeve 434 all adapter sleeve are connected on power transmission shaft 42, fix to make each bearing rotating ring 432 and each axle sleeve 434 relative position, on each axle sleeve 434, equal interval is nested with two bearing stationary rings 433, bear box 431 inwall between two bearing stationary rings 433 arranges a collar flange 435, a damping storage bodies 436 is set respectively between collar flange 435 and two bearings stationary ring 433.The lateral wall of each bearing stationary ring 433 offers multiple axial arranged elongated slot 437 along bear box 431, connect a screw 438 being positioned on the right bear box of each elongated slot 437 431, the end of screw 438 is stretched into limit the rotary freedom of bearing stationary ring 433 along bear box 431 circumference in elongated slot 437, also makes the slip that bearing stationary ring 433 can occur by a small margin relative to bear box 431 simultaneously.All enclose diamond compact 439 by two between each bearing stationary ring 433 with bearing rotating ring 432 to match, wherein a circle diamond compact 439 is arranged on bearing stationary ring 433, and another circle diamond compact is arranged on bearing rotating ring 432.Each diamond compact 9 is cylindrical, and the even circumferential along bearing rotating ring 2 and bearing stationary ring 3 distributes.
In the present embodiment, damping storage bodies 436 can be rubber bodies or spring, also can be that other has the element of elastic buffer performance.
The floating type thrust bearing 43 of entirety in the present embodiment when mounted, a suitable pretightning force can be applied artificially in the axial direction, under operating load conditions, axial alternating shock load is born by entirety floating type thrust bearing 43 entirety, the direction change point of axial alternating shock load is transferred on damping storage bodies 436 by the frictional interface of diamond compact 439 sliding friction pair, achieve the entirety of the utility model under axial alternating shock load to float, avoid and directly impact diamond compact 439.Meanwhile, axial load is delivered on bear box 431 by bearing rotating ring 432, bearing stationary ring 433, damping storage bodies 436 and multiple flange 435, substantially increases the axial carrying capacity of whole bearing.
The beneficial effects of the utility model are, the abilities such as corrosion-resistant, the anti scuffing of axial thrust bearing, shock resistance, axial carrying be strong are increased substantially, significantly extend its working life, use helicoid hydraulic motor of the present utility model in the drilling process of oil, natural gas exploration and development, effectively can improve drilling duty and efficiency.
Embodiment two:
As shown in Figure 3, in the present embodiment, the motor assembly 2 of helicoid hydraulic motor comprises stator 21, rotor 22 and the sulfuration rubber bushing 23 on stator 21 endoporus, the feature of the present embodiment is, the inner hole surface of rotor 21 is spiral camber, the internal face of the rubber bushing 23 of sulfuration on stator inner hole is also spiral camber, and rubber bushing 23 has uniform thickness.
The present embodiment is by being set to spiral camber by the inner hole surface of rotor 21, make the rubber bushing 23 of direct sulfuration in inner hole surface can be that (prior art rotor inner hole surface is circular hole face to uniform thickness, the rubber bushing thin and thick difference of sulfuration in inner hole surface is large), thus additional deformation is little under operational loading, heat production is few, rapid heat dissipation to make rubber bushing 23, and motor transformation efficiency also can be made to have larger lifting.
The utility model is only described with above-described embodiment, and the structure of each parts, setting position and connection thereof all can change to some extent.On the basis of technical solutions of the utility model, all improvement of carrying out individual part according to the utility model principle or equivalents, all should not get rid of outside protection domain of the present utility model.
Claims (5)
1. a helicoid hydraulic motor for drilling well, it comprises the by-pass valve assembly, motor assembly, universal drive shaft assembly and the driving-shaft assembly that connect successively; It is characterized in that: described driving-shaft assembly comprises the power transmission shaft thrust bearing floating type with the entirety being connected described power transmission shaft and described transmission shaft shell of transmission shaft shell, hollow;
The floating type thrust bearing of described entirety comprises one and is fastenedly connected at described transmission shaft shell inwall and tubular bear box, is multiplely positioned at the bearing rotating ring of described bear box and multiple bearing stationary ring being positioned at described bear box; Between every two described bearing rotating rings, an axle sleeve is set, described bearing rotating ring and the equal adapter sleeve of axle sleeve are connected on described power transmission shaft, on axle sleeve described in each, equal interval is nested with two described bearing stationary rings, described bear box inwall between two described bearing stationary rings arranges a collar flange, described in described collar flange and two, a damping storage bodies is being set between bearing stationary ring respectively; Described in each bearing stationary ring lateral wall on offer multiple axial arranged elongated slot along described bear box, connect a screw being positioned on the right described bear box of elongated slot described in each, the end of described screw is stretched in described elongated slot; Bearing stationary ring described in each with all enclose diamond compact by two between described bearing rotating ring and match, wherein the described diamond compact of a circle is arranged on described bearing stationary ring, and another encloses described diamond compact and is arranged on described bearing rotating ring.
2. the helicoid hydraulic motor of drilling well as claimed in claim 1, is characterized in that: described damping storage bodies is rubber bodies or spring.
3. the helicoid hydraulic motor of drilling well as claimed in claim 1 or 2, it is characterized in that: described motor assembly comprises stator, rotor and the sulfuration rubber bushing on described stator inner hole, the inner hole surface of described rotor and the internal face of described rubber bushing are spiral camber, and described rubber bushing has uniform thickness.
4. the helicoid hydraulic motor of drilling well as claimed in claim 1 or 2, is characterized in that: each encloses described diamond compact and is multiple circumferentially equally distributed cylindrical diamond compact.
5. the helicoid hydraulic motor of drilling well as claimed in claim 3, is characterized in that: each encloses described diamond compact and is multiple circumferentially equally distributed cylindrical diamond compact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520126412.XU CN204591121U (en) | 2015-03-04 | 2015-03-04 | The helicoid hydraulic motor of drilling well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520126412.XU CN204591121U (en) | 2015-03-04 | 2015-03-04 | The helicoid hydraulic motor of drilling well |
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| Publication Number | Publication Date |
|---|---|
| CN204591121U true CN204591121U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520126412.XU Active CN204591121U (en) | 2015-03-04 | 2015-03-04 | The helicoid hydraulic motor of drilling well |
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| Country | Link |
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| CN (1) | CN204591121U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675324A (en) * | 2015-03-04 | 2015-06-03 | 中国海洋石油总公司 | PDM (positive displacement motor) drilling tool for well drilling |
| CN107819363A (en) * | 2016-09-12 | 2018-03-20 | 中国石油天然气集团公司 | Motor stator and its manufacture method |
-
2015
- 2015-03-04 CN CN201520126412.XU patent/CN204591121U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675324A (en) * | 2015-03-04 | 2015-06-03 | 中国海洋石油总公司 | PDM (positive displacement motor) drilling tool for well drilling |
| CN107819363A (en) * | 2016-09-12 | 2018-03-20 | 中国石油天然气集团公司 | Motor stator and its manufacture method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |