CN207583972U - A kind of damping transmission shaft - Google Patents
A kind of damping transmission shaft Download PDFInfo
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- CN207583972U CN207583972U CN201721488723.6U CN201721488723U CN207583972U CN 207583972 U CN207583972 U CN 207583972U CN 201721488723 U CN201721488723 U CN 201721488723U CN 207583972 U CN207583972 U CN 207583972U
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- transmission shaft
- disc spring
- bearings
- screw drive
- drive axis
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Abstract
The utility model discloses a kind of damping transmission shaft, including screw drive axis（12）, screw drive axis（12）It is cased with transmission shaft outer barrel outside（3）；In screw drive axis（12）With transmission shaft outer barrel（3）Between gap in from the bottom to top be equipped with lower TC bearings Jing Quan（11）, anti-lost semi-ring（10）, string bearing（8）, upper TC bearings moving-coil（1）；String bearing（8）Both ends are respectively equipped with disc spring group（5）.The utility model is simple in structure, securely and reliably, super large bit pressure drilling, drill bit bouncing of drilling tool is needed to shake violent drilling applications especially suitable for situ of drilling well, bit pressure will not be caused instantaneously to increase suddenly and damaged to drill bit and drill string, the service life of helicoid hydraulic motor and drill bit is effectively increased, so as to effectively improve bit speed and efficiency.
Description
Technical field
The utility model is related to a kind of damping transmission shafts, belong to the helicoid hydraulic motor technical field in oil field.
Background technology
In drilling process, the driller personnel on drilling platforms have meeting intentionally or unintentionally to carry out percussion drill operation suddenly,
Percussion drill operation will cause bit pressure instantaneously to increase suddenly, and conventional helicoid hydraulic motor is encountering percussion drill operation or continuing big bit pressure, high torsion
During square drilling well, since helicoid hydraulic motor is larger by axial compressive force and flutter failure, helicoid hydraulic motor and drilling life of bit is made to drop significantly
It is low.
Utility model content
The purpose of the utility model is to provide a kind of damping transmission shafts.Helicoid hydraulic motor can be protected not broken by axial vibration
It is bad, reduce drilling well and make a trip process, effectively extend the service life of helicoid hydraulic motor and drill bit, so as to effectively improve bit speed and
Efficiency realizes oil drilling maximizing the benefits.With overcome the deficiencies in the prior art.
The technical solution of the utility model：
A kind of damping transmission shaft, including screw drive axis, screw drive outer shaft sleeve has transmission shaft outer barrel；In screw drive axis
Lower TC bearings Jing Quan, anti-lost semi-ring, string bearing, upper TC bearings are equipped in gap between transmission shaft outer barrel from the bottom to top to move
Circle；String bearing both ends are respectively equipped with disc spring group, and upper TC bearings Jing Quan is enclosed in transmission shaft outer barrel.
In aforementioned damping transmission shaft, the disc spring group includes upper disc spring group and lower disc spring group, and upper disc spring group includes guide sleeve,
One group of disc spring is cased on guide sleeve；Upper disc spring group both ends are equipped with disc spring pad；Lower disc spring group includes pressure-bearing set, and pressure-bearing, which is put on, is cased with one
Group disc spring；Lower disc spring group lower end is equipped with disc spring pad.
In aforementioned damping transmission shaft, the corresponding screw drive axis outer circle of the anti-lost semi-ring is equipped with anti-lost slot, and two symmetrical
Anti-lost semi-ring connect with anti-lost slot gap, be cased with lower TC bearings Jing Quan outside anti-lost semi-ring.
In aforementioned damping transmission shaft, the lower TC bearings Jing Quan and the endoporus and screw rod of screw drive axis contact site pass
The corresponding outer circle of moving axis is respectively equipped with hard alloy layer；Upper TC bearings moving-coil outer circle and the quiet circle endoporus of upper TC bearings are respectively equipped with firmly
Matter alloy-layer.
In aforementioned damping transmission shaft, the upper TC bearings moving-coil is equipped with flat notch, outside transmission shaft corresponding with flat notch
Eccentric grove is equipped in cylinder endoporus, closing piece is equipped in eccentric grove.
In aforementioned damping transmission shaft, the upper surface of the screw drive axis lower part major part and the lower face of lower TC bearings Jing Quan
It is equipped with hard alloy pressure-bearing surface.
In aforementioned damping transmission shaft, the lower face of the lower TC bearings Jing Quan is equipped with the circular arc of one group of ring-type radiation distribution
Sink.
Compared with prior art, the utility model improves the axial compressive force ability to bear of damping transmission shaft, slows down
Impact force suffered by shaking transmission shaft middle (center) bearing, substantially prolongs the service life of damping transmission shaft, is removed when reducing drilling well drill-through
The time that journey is delayed, so as to effectively increase bit speed and efficiency.The generation that drilling tool falls well accident can be reduced.
Description of the drawings
Fig. 1 is the general structure schematic diagram of the utility model；
Fig. 2 is the close-up schematic view at A in Fig. 1；
Fig. 3 is the close-up schematic view at B in Fig. 1；
Fig. 4 is the sectional schematic diagram at closing piece in Fig. 1；
Fig. 5 is the general structure schematic diagram of lower TC bearings Jing Quan.
In figure：The upper TC bearings moving-coils of 1-, upper TC bearings Jing Quan, 3- transmission shafts outer barrels of 2-, 4- closing pieces, 5- disc spring groups, 6- dish
Spring pad, 7- guide cylinders, 8- strings bearing, 9- pressure-bearings set, the anti-lost semi-rings of 10-, TC bearing Jing Quan, 12- screw drives axis under 11-,
13- hard alloy pressure-bearing surface, 14- hard alloy layers, the anti-lost slots of 15-, 16- circular arcs sink, the flat notches of 17-, 18- eccentric groves, 19-
Rectangular rigid alloy bar.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, but not as new to this practicality
Any restrictions of type.
A kind of damping transmission shaft as shown in Figure 1, including screw drive axis 12, is cased with outside screw drive axis 12 outside transmission shaft
Cylinder 3；The quiet circle 11 of lower TC bearings, anti-lost half are equipped in gap between screw drive axis 12 and transmission shaft outer barrel 3 from the bottom to top
Ring 10, string bearing 8, upper TC bearings moving-coil 1；8 both ends of string bearing are respectively equipped with disc spring group 5.Disc spring group 5 includes upper disc spring group under
Disc spring group, upper disc spring group are cased with one group of disc spring as shown in Fig. 2, including guide sleeve 7 on guide sleeve 7；Upper disc spring group both ends are equipped with dish
Spring pad 6；Lower disc spring group is cased with one group of disc spring as shown in figure 5, including pressure-bearing set 9 on pressure-bearing set 9；Lower disc spring group lower end is equipped with dish
Spring pad 6.
Anti-lost semi-ring 10 as shown in figure 3,10 corresponding 12 outer circle of screw drive axis of anti-lost semi-ring be equipped with anti-lost slot 15, two
Symmetrical anti-lost semi-ring 10 is connect with anti-lost 15 gap of slot, and the quiet circle 11 of lower TC bearings is cased with outside anti-lost semi-ring 10.
As shown in figures 1 and 3, the endoporus and screw drive of the quiet circle 11 of lower TC bearings and 12 contact site of screw drive axis
12 corresponding outer circle of axis is respectively equipped with hard alloy layer 14；Upper 1 outer circle of TC bearings moving-coil and upper TC bearings 2 endoporus of quiet circle are set respectively
There is hard alloy layer 14.
As shown in figure 4, upper TC bearings moving-coil 1 is equipped with flat notch 17, with flat 17 corresponding 3 endoporus of transmission shaft outer barrel of notch
In be equipped with eccentric grove 18, closing piece 4 is equipped in eccentric grove 18.
As shown in Figure 1, between the upper surface of 12 lower part major part of screw drive axis and the lower face of the quiet circle 11 of lower TC bearings are equal
Equipped with axial stroke gap delta, limitation is applied to the maximum axial pressure on string bearing, realizes the overload protection of string bearing；Screw rod
The upper surface of 12 lower part major part of transmission shaft and the lower face of the quiet circle 11 of lower TC bearings are equipped with hard alloy pressure-bearing surface 13.Such as Fig. 5
Shown, in order to see the structure of the lower face of the quiet circle 11 of lower TC bearings, the quiet circle 11 of lower TC bearings in Fig. 5 is that lower end is face-up
's.As seen from Figure 5, the lower face of the quiet circle 11 of lower TC bearings is equipped with the circular arc sink 16 of one group of ring-type radiation distribution.
The schematic diagram of the quiet circle 11 of lower TC bearings, the screw drive axis 12, upper TC axis are only gived in the attached drawing of the application
14 structure of hard alloy layer held in 1 outer circle of moving-coil and the quiet circle 2 of upper TC bearings is identical with shown in Fig. 5, for by axial alignment
19 fissure of displacement surfacing of rectangular rigid alloy bar formed hard alloy layer 14.
The main improvement of the utility model is as follows：
As shown in Figure 1.The overall shock resistance energy that the utility model passes through the improvement raising helicoid hydraulic motor to damping transmission shaft
Power.Particular content is as follows：
1st, the screw drive axis 12 for transmitting torque is connect by damping transmission shaft using string bearing 8 with transmission shaft outer barrel 3, is passed through
String bearing 8 improves the performance that helicoid hydraulic motor bears axial compressive force.
2nd, disc spring group 5 is set respectively at 8 both ends of string bearing, string axis is passed to after axial compressive force is buffered by disc spring group 5
8 are held, to slow down the impact force that string bearing 8 is born.
3rd, cancel the lower TC bearings moving-coil of split in the prior art, directly in screw drive axis 12 and lower TC bearings Jing Quan
11 contact site surfacing hard alloy layers 14 substitute the lower TC bearings moving-coil of split in the prior art, realize that screw drive axis 12 is straight
The maximization of diameter size improves the rigidity requirement of 12 impact resistance of screw drive axis.Hard alloy layer 14 is by axial alignment
19 fissure of displacement surfacing of rectangular rigid alloy bar is in the quiet circle 11 of lower TC bearings and upper TC bearings 2 endoporus of quiet circle and screw drive axis 12
It is formed with upper 1 outer circle of TC bearings moving-coil.
4th, by being set between 11 lower faces of quiet circle of the end face on 12 lower part major part top of screw drive axis and lower TC bearings
Axial stroke gap delta, limitation are applied to the maximum axial pressure on string bearing 8, realize the overload protection of string bearing 8.
5th, by forming open lubrication system equipped with circular arc sink 16 in 11 end faces of the quiet circle of lower TC bearings, it is ensured that mud
Always hard alloy layer 14 and string bearing 8 can be cooled down and lubricated.
6th, by setting anti-lost slot 15 on screw drive axis 12, and it is anti-lost by two in the quiet circle 11 of lower TC bearings
Semi-ring 10 is connect with anti-lost 15 gap of slot, anti-drop structure in composition；Interior anti-drop structure is prevented with existing at the top of helicoid hydraulic motor
It turns round and changes assembly and collectively form double anti-drop structures, prevent drilling tool and fall well accident.
Embodiment
This example it is as shown in Figure 1.Including screw drive axis 12 and transmission shaft outer barrel 3, the top of screw drive axis 12 is equipped with
The quiet circle 2 of upper TC bearings and upper TC bearings moving-coil 1, middle part are equipped with string bearing 8 and bear axial compressive force, step set in transmission shaft outer barrel 3
On upper TC bearings 2 outer steps of quiet circle, upper 2 lower parts of the quiet circle of TC bearings are equipped with disc spring group 5, and string axis is passed to after bit pressure is buffered
8 are held, then screw drive axis 12 is passed to by pressure-bearing set 9, thus by load transfer to drill bit；Lower part is equipped with lower TC bearings Jing Quan
11, while be additionally provided with disc spring group 5 and equally absorb drilling tool axial vibrations power.When it is implemented, disc spring group 5 can be big according to live bit pressure
Small, stroke etc. is designed to different combinations.Disc spring in disc spring group 5 can also be substituted with waveform spring.
As shown in figure 3, the middle part of screw drive axis 12 is designed with anti-lost slot 15, and in lower TC bearings 11 endoporus of quiet circle
Anti-lost semi-ring 10 constitutes the interior anti-lost of drilling tool.As shown in Figure 1 and Figure 5, the end face on 12 lower part major part top of screw drive axis and
Lower 11 lower faces of the quiet circle of TC bearings are equipped with axial pressure-bearing surface, and be inlaid with wear-resisting hard alloy pressure-bearing surface 13, and constituting can revolve
The overload protection bearing turned.12 middle part of screw drive axis is equipped with hard alloy layer 14, the two integrator, instead of conventional biography
The structure of moving axis and lower TC bearing moving-coils split design, can bear radial load again while can transmitting bit pressure, torque.It realizes
Diameter of axle size maximizes, and ensure that the intensity of axis.
String bearing is respectively provided with one group of disc spring group 5 about 8, wherein one group of disc spring group passes to string axis after bit pressure is buffered above
8 are held, plays cushioning effect, one group of disc spring group compresses string bearing 8 as an entirety to the cooperation of set below disc spring group always above, ensures
The intensity of string bearing 8 and service life.The pressure-bearing set 9 of damping driving-shaft assembly 4, which has, transmits bit pressure, while be set below dish again
The guide cylinder of 5 axial stretching of spring group.
As shown in figures 1 and 3,12 middle part of screw drive axis is designed with anti-lost slot 15, and anti-lost semi-ring 10 is sleeved on above and stays
There is gap delta, while anti-lost semi-ring 10 realizes the interior anti-lost of drilling tool in lower TC bearings 11 endoporus of quiet circle.
As shown in figure 5,12 lower part major part top of screw drive axis end face and lower TC bearings it is quiet circle 11 lower faces be all provided with
There is hard alloy pressure-bearing surface 13, lower 11 lower faces of the quiet circle of TC bearings are equipped with 3~5 circular arc sinks 16, when drilling tool axial compressive force mistake
The fitting of latter two end face is carried, shunting is extra to be added on string bearing 8, can either normally be rotated, and in turn ensures that string bearing 8 is not pressed
It is broken, that is, realize overload protection.
Claims (7)
1. a kind of damping transmission shaft, including screw drive axis（12）, it is characterised in that：Screw drive axis（12）It is cased with transmission shaft outside
Outer barrel（3）；In screw drive axis（12）With transmission shaft outer barrel（3）Between gap in from the bottom to top be equipped with lower TC bearings Jing Quan
（11）, anti-lost semi-ring（10）, string bearing（8）, upper TC bearings moving-coil（1）；String bearing（8）Both ends are respectively equipped with disc spring group（5）, on
TC bearings Jing Quan（2）It is enclosed in transmission shaft outer barrel（3）It is interior.
2. damping transmission shaft according to claim 1, it is characterised in that：The disc spring group（5）Including upper disc spring group and lower dish
Spring group, upper disc spring group include guide sleeve（7）, guide sleeve（7）On be cased with one group of disc spring；Upper disc spring group both ends are equipped with disc spring pad（6）；
Lower disc spring group includes pressure-bearing set（9）, pressure-bearing set（9）On be cased with one group of disc spring；Lower disc spring group lower end is equipped with disc spring pad（6）.
3. damping transmission shaft according to claim 1, it is characterised in that：The anti-lost semi-ring（10）Corresponding screw drive axis
（12）Outer circle is equipped with anti-lost slot（15）, two symmetrical anti-lost semi-rings（10）With anti-lost slot（15）Gap connects, anti-lost semi-ring
（10）It is cased with lower TC bearings Jing Quan outside（11）.
4. damping transmission shaft according to claim 1, it is characterised in that：The lower TC bearings Jing Quan（11）With screw drive axis
（12）The endoporus of contact site and screw drive axis（12）Corresponding outer circle is respectively equipped with hard alloy layer（14）；Upper TC bearings
Moving-coil（1）Outer circle and upper TC bearings Jing Quan（2）Endoporus is respectively equipped with hard alloy layer（14）.
5. damping transmission shaft according to claim 1, it is characterised in that：The upper TC bearings moving-coil（1）It is equipped with flat notch
（17）, with flat notch（17）Corresponding transmission shaft outer barrel（3）Eccentric grove is equipped in endoporus（18）, eccentric grove（18）It is interior to be equipped with closing piece
（4）.
6. damping transmission shaft according to claim 1, it is characterised in that：The screw drive axis（12）The upper end of lower part major part
Face and lower TC bearings Jing Quan（11）Lower face be equipped with hard alloy pressure-bearing surface（13）.
7. damping transmission shaft according to claim 1, it is characterised in that：The lower TC bearings Jing Quan（11）Lower face be equipped with
The circular arc sink of one group of ring-type radiation distribution（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721488723.6U CN207583972U (en) | 2017-11-09 | 2017-11-09 | A kind of damping transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721488723.6U CN207583972U (en) | 2017-11-09 | 2017-11-09 | A kind of damping transmission shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583972U true CN207583972U (en) | 2018-07-06 |
Family
ID=62731170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721488723.6U Active CN207583972U (en) | 2017-11-09 | 2017-11-09 | A kind of damping transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207583972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056309A (en) * | 2019-05-10 | 2019-07-26 | 西南石油大学 | System of Rotating about Fixed Axis positive displacement power tool |
-
2017
- 2017-11-09 CN CN201721488723.6U patent/CN207583972U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056309A (en) * | 2019-05-10 | 2019-07-26 | 西南石油大学 | System of Rotating about Fixed Axis positive displacement power tool |
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