CN208546436U - Thrust bearing - Google Patents
Thrust bearing Download PDFInfo
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- CN208546436U CN208546436U CN201820990728.7U CN201820990728U CN208546436U CN 208546436 U CN208546436 U CN 208546436U CN 201820990728 U CN201820990728 U CN 201820990728U CN 208546436 U CN208546436 U CN 208546436U
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- fixed ring
- swivel becket
- fixed
- outer tube
- ring
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Abstract
The utility model provides a kind of thrust bearing, which includes: the first outer tube, the first elastic component, the first fixed ring and the first swivel becket；The top of first outer tube, which is internally protruded, is formed with stop lug, and first sliding groove is provided on the outer wall of the first fixed ring, and the first protrusion is provided on the inner wall of the first outer tube, and the first protrusion is slidably installed in first sliding groove；First elastic component is arranged between stop lug and the first fixed ring；First swivel becket is supported in the lower end of the first fixed ring, and drive shaft is threaded through in the first fixed ring and the first swivel becket, and the annular flange in drive shaft is supported on the bottom end of the first swivel becket；When drill bit encounters more hard rock stratum and when by upward impact force, drilling rod is set to push up drive shaft, annular flange in drive shaft supports the first swivel becket upwards, so that the first fixed ring compresses the first elastic component upwards, elastic deformation occurs for the first elastic component, and then impact force is absorbed, in case trepan is shaken.
Description
Technical field
The utility model relates to technical field of bearings more particularly to a kind of thrust bearings.
Background technique
It during oil exploitation, needs to drill out well casing to underground first, when drilling well generally uses trepan to carry out drilling well；It bores
It includes rack, driving device and drive shaft that well machine, which is protected, is provided with central axis in the axis hole of horizontal plane, drive shaft in rack
It is threaded through in axis hole, the top of drive shaft and driving device are sequentially connected, to drive drive shaft turns, the bottom end of drive shaft and brill
The top of bar is sequentially connected, and the bottom end of drilling rod is connected with drill bit；Driving device work is when drilling well to drive drilling rod to rotate, Jin Er
Well casing is drilled out on ground；In order to accelerate the drill bit speed mobile to underground, often apply downward pressure to drilling rod, therefore how right
Drilling rod applies downward pressure and has become a hot topic of research.
In the prior art, drilling rod is often pushed down on by hydraulic cylinder, to accelerate the speed that drill bit moves down.In rack
On be provided with central axis and be threaded through in slide opening in being provided with slide opening, traveller on the bogie on the traveller of horizontal plane, rack,
Driving device is arranged on bogie；Axis hole is arranged on bogie, thrust bearing is arranged in axis hole, thrust bearing includes edge
The upper thrust plate and lower thrust plate of axially spaced-apart setting, and the rolling element being arranged between upper thrust plate and lower thrust plate, axis
Hole is provided with stop block on the side wall on top, and stop block is supported on upper thrust plate；Drive shaft is threaded through axis hole and stops
In thrust bearing, annular flange is set on the side wall that drive shaft is located at axis hole lower part, annular flange is supported under thrust bearing
On thrust plate；The cylinder body of hydraulic cylinder is connect with rack, and the piston rod of hydraulic cylinder is connect with bogie；When drilling well, driving device is driven
Dynamic drive shaft turns, and then drive drilling rod rotation control the piston rod of hydraulic cylinder by stretching out in cylinder body at the same time, Jin Erxiang
Under support bogie, bogie supports downwards drive shaft by thrust bearing, and then pressure is transferred to drilling rod, to accelerate drill bit
The speed moved down.
However, the rock stratum hardness due to underground is uneven, the biggish rock of hardness is encountered during drill bit moves down
When layer, the upward impact force that drill bit is subject to, impact force supports drilling rod upwards, and then is transferred to impact force by thrust bearing
Rack be easy to cause trepan to shake.
Utility model content
In view of this, the present invention provides a kind of thrust bearings, to solve in the prior art, since the rock stratum of underground is hard
Degree is uneven, when encountering the biggish rock stratum of hardness during drill bit moves down, the upward impact force that drill bit is subject to, and punching
It hits power and supports drilling rod upwards, and then impact force is transferred to by rack by thrust bearing, the technology for be easy to causeing trepan to shake
Problem.
The utility model provides a kind of thrust bearing, comprising: the first outer tube, the first elastic component, the first fixed ring with
And first swivel becket；The top of first outer tube, which is internally protruded, is formed with stop lug, outside first fixed ring
It is provided with first sliding groove on wall, the first protrusion, the first fixed ring setting are provided on the inner wall of first outer tube
In first outer tube, and first protrusion is slidably installed in the first sliding groove；The first elastic component setting exists
Between the stop lug and first fixed ring, and the top of first elastic component is connect with the stop lug, institute
The bottom end for stating the first elastic component is connect with the top of first fixed ring；First swivel becket is supported fixed described first
The lower end of ring, drive shaft is threaded through in first fixed ring and first swivel becket, and the annular flange in drive shaft is supported
It withstands on the bottom end of first swivel becket.
Thrust bearing as described above, it is preferable that first elastic component includes disc spring.
Thrust bearing as described above, it is preferable that the first fixed sliding block, institute are provided on the lower end of first fixed ring
The first fixed sliding block is stated to support on first turning block.
Thrust bearing as described above, it is preferable that the described first fixed sliding block is multiple, multiple described first fixed sliding blocks
Along the circumferentially spaced setting of first fixed ring.
Thrust bearing as described above, it is preferable that on the upper end of first swivel becket it is circumferentially spaced be provided with it is more
A first turning block, first turning block are supported on the described first fixed sliding block.
Thrust bearing as described above, it is preferable that the thrust bearing further include: the second fixed ring, the second swivel becket,
One inner sleeve, the second inner sleeve, the first baffle ring and the second elastic component；The top of second swivel becket with described first turn
The bottom end of rotating ring connects, and the lower part of second swivel becket is arranged in second fixed ring；The outer wall of second fixed ring
On be provided with second sliding slot, the second protrusion is provided on the inner wall of first outer tube, second protrusion is slidably installed in
In the second sliding slot；First baffle ring is removably connect with the lower end of first outer tube, first backstop
Annular protrusion is provided on the inner wall of ring, second elastic component is arranged in second fixed ring and the annular protrusion
Between；After the bottom end of first inner sleeve passes through first fixed ring, support on the upper end of first swivel becket；Institute
The top of the second inner sleeve is stated after second fixed ring, is supported on the lower end of second swivel becket；The driving
Axis is threaded through in first inner sleeve, second inner sleeve, first swivel becket and second swivel becket, and is driven
The upper annular flange of moving axis is supported in the lower end of second inner sleeve.
Thrust bearing as described above, it is preferable that the upper end of second fixed ring is provided with the second fixed sliding block, described
Second fixed sliding block is supported in the lower end of second swivel becket.
Thrust bearing as described above, it is preferable that the described second fixed sliding block is multiple, multiple described second fixed sliding blocks
Along the circumferentially spaced setting of second fixed ring.
Thrust bearing as described above, it is preferable that the lower end edge of second swivel becket is circumferentially spaced be provided with it is multiple
Second turning block, second turning block are abutted with the described second fixed sliding block.
Thrust bearing as described above, it is preferable that the thrust bearing further include: the second outer tube, third elastic component,
Three fixed rings and third swivel becket；The top of second outer tube is connect with the bottom end of first baffle ring, and described
It is provided with third protrusion on the inner wall of two outer tubes, third sliding slot is provided in the third fixed ring, the third is fixed
Ring is arranged in second outer tube, and third protrusion is slidably installed in the third sliding slot；The third elastic component is set
It sets between the annular protrusion and the third fixed ring；The third swivel becket is arranged under the third fixed ring
Portion, and the upper end of the third swivel becket is supported on the bottom end of second inner sleeve, the upper annular flange of drive shaft is supported
Withstand on the lower end of the third swivel becket.
Thrust bearing provided by the utility model, it is convex in backstop by the way that stop lug is arranged on the top of the first outer tube
The lower part of edge sets gradually the first elastic component, the first fixed ring and the first swivel becket；And on the outer wall of the first fixed ring
First sliding groove is set, the first protrusion is set on the inner wall of the first outer tube, the first protrusion is slidably installed in first sliding groove, is driven
Moving axis is threaded through in the first fixed ring and the first swivel becket, and the annular flange in drive shaft is supported under the first swivel becket
End；When drill bit encounters more hard rock stratum when by upward impact force, drilling rod is set to push up drive shaft, in drive shaft
Annular flange support the first swivel becket upwards so that the first fixed ring compresses the first elastic component upwards, the first elastic component occurs
Elastic deformation, and then impact force is absorbed, in case trepan is shaken.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the installation diagram of thrust bearing provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of the first fixed ring in Fig. 1；
Fig. 3 is the structural schematic diagram of the first swivel becket in Fig. 1.
Description of symbols:
1, the first outer tube；
2, the first fixed ring；
3, the first swivel becket；
4, the first elastic component；
5, the second swivel becket；
6, the second fixed ring；
7, the second elastic component；
8, the first baffle ring；
9, the first inner sleeve；
10, the second inner sleeve；
11, third elastic component；
12, third fixed ring；
13, third swivel becket；
14, the second outer tube；
15, third inner sleeve；
16, the second baffle ring；
17, the 4th elastic component；
18, the 4th fixed ring；
19, the 4th swivel becket；
101, stop lug；
201, the first fixed sliding block；
202, first sliding groove；
301, the first turning block；
801, annular protrusion.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Fig. 1 is the installation diagram of thrust bearing provided by the embodiment of the utility model；Fig. 2 is the knot of the first fixed ring in Fig. 1
Structure schematic diagram；Fig. 3 is the structural schematic diagram of the first swivel becket in Fig. 1.
Please refer to Fig. 1-Fig. 3.The present embodiment provides a kind of thrust bearings, comprising: the first outer tube 1, the first elastic component 4,
First fixed ring 2 and the first swivel becket 3；The top of first outer tube 1, which is internally protruded, is formed with stop lug 101, and first
It is provided with first sliding groove 202 on the outer wall of fixed ring 2, the first protrusion is provided on the inner wall of the first outer tube 1, first is fixed
Ring 2 is arranged in the first outer tube 1, and the first protrusion is slidably installed in first sliding groove 202；First elastic component 4 is arranged in backstop
Between flange 101 and the first fixed ring 2, and the top of the first elastic component 4 is connect with stop lug 101, the bottom of the first elastic component 4
End is connect with the top of the first fixed ring 2；First swivel becket 3 is supported in the lower end of the first fixed ring 2, and drive shaft is threaded through first
In fixed ring 2 and the first swivel becket 3, and the annular flange in drive shaft is supported on the bottom end of the first swivel becket 3.
Specifically, the first outer tube 1 is threaded through in the axis hole on trepan bogie, and the top of the first outer tube 1
It supports on the stop block in axis hole, to prevent the first outer tube 1 to the external mobile of axis hole；First outer tube 1 can be based on
The metal tube or the first outer tube 1 to be made of metal materials such as copper, iron, aluminium are mainly by the non-metallic materials texture such as plastics
At non-metallic pipe.
Preferably, 1 upper end of the first outer tube is provided with apical ring, stop lug 101 is arranged on the inner wall of apical ring；Apical ring can
To be connect by bolted connection with the first outer tube 1, with the first elastic component 4 damage when, by apical ring by the first housing
It is disassembled on pipe 1, to be convenient for changing the first elastic component 4.
Specifically, the first elastic component 4 can be can arbitrarily to occur elastically-deformable device, to pass through after being compressed
The elastic deformation of first elastic component 4 absorbs the impact force from drilling rod；Such as: the first elastic component 4 is helical spring, helical spring
Top support in stop lug 101, the bottom end of helical spring is supported on the top of the first fixed ring 2, and drive shaft is worn
In the first fixed ring 2, the first swivel becket 3 and helical spring, in impact force of the drill bit by rock stratum, drilling rod will impact
Power is transferred to drive shaft, and then supports drive shaft upwards, so that the annular flange in drive shaft supports the first swivel becket 3 upwards,
First swivel becket 3 drives the first fixed ring 2 to move up with compression helical spring, and then elastic deformation occurs for helical spring to inhale
Receive impact force.Certainly helical spring can also be multiple, and the circumferentially spaced setting of multiple helical springs is in 101 He of stop lug
Between first fixed ring 2.
Specifically, the first fixed ring 2 can be becket or the plastic hoop with sufficient intensity；In first fixed ring 2
Sliding slot be arranged along axis so that the first fixed ring 2 can after the first protrusion on the first outer tube 1 is slidably installed in sliding slot
It is moved with the axis direction along the first outer tube 1.
Preferably, tooth ring is removably provided in the first outer tube 1, the inner wall of tooth ring is arranged in the first protrusion
On, with ring of more growing permanent teeth in the damage of the first protrusion, with waste of material caused by entire first outer tube 1 free of replacement.Further
Ground, the first protrusion be it is multiple, multiple first protrusions along tooth ring circumferentially spaced setting, accordingly in the first fixed ring 2
Outer wall on multiple first sliding grooves 202 are set, every one first protrusion is slidably installed in a first sliding groove 202.
Specifically, becket or the first swivel becket that the first swivel becket 3 can be constituted for metals such as main copper, iron, aluminium
3 be the nonmetallic ring being mainly made of non-metallic materials such as plastics；It should be noted that by the top of the first swivel becket 3 and the
The bottom end of one fixed ring 2 is arranged smooth as far as possible, to reduce the frictional force between the first swivel becket 3 and the first fixed ring 2.
Preferably, annular slide track is provided on the outer wall of the first swivel becket 3, annular retainer is slidably installed in annular slide track
It is interior, and rolling groove is provided on retainer, it is arranged in rolling groove in spherical rolling element, the first swivel becket 3 passes through rolling
Body is contacted with the inner wall of the first outer tube 1, to reduce the frictional force between the first swivel becket 3 and 1 inner wall of the first outer tube.
The installation process of thrust bearing provided in this embodiment are as follows: the first swivel becket 3 is arranged on the driving shaft first, and
And support the bottom end of the first swivel becket 3 in annular flange on the driving shaft, the first fixed ring 2 is set in drive shaft later
On, and it is attached to the bottom end of the first fixed ring 2 on the top of first swivel becket 3, the first elastic component 4 is placed on first later
On the top of fixed ring 2, then the first outer tube 1 is set in the outside of drive shaft, make the first elastic component 4, the first fixed ring 2 with
And first swivel becket 3 penetrate into the first outer tube 1, and the top of the first elastic component 4 is supported in stop lug 101；
Finally the first outer tube 1 is threaded through in axis hole, and supports the top of the first outer tube 1 on the stop block in axis hole.
In use, drive shaft turns to be to drive drilling rod to rotate, and then make the end of drilling rod drill out well casing in underground, it is same with this
When annular flange drive the first swivel becket 3 rotation；When drill bit encounters more hard rock stratum, drill bit is by upward impact
Power, and then drilling rod is made to push up drive shaft, the annular flange in drive shaft supports the first swivel becket 3 upwards, so that first is solid
Determine the first elastic component 4 of compression upwards of ring 2, elastic deformation occurs for the first elastic component 4, and then absorbs impact force, in case trepan is trembled
It is dynamic.
Thrust bearing provided in this embodiment, by the way that stop lug 101 is arranged on the top of the first outer tube 1, in backstop
The lower part of flange 101 sets gradually the first elastic component 4, the first fixed ring 2 and the first swivel becket 3；And in the first fixed ring 2
Outer wall on be arranged first sliding groove 202, the first protrusion is set on the inner wall of the first outer tube 1, and the first protrusion is slidably installed in
202 in first sliding groove, drive shaft is threaded through in the first fixed ring 2 and the first swivel becket 3, and the annular flange in drive shaft is supported
Withstand on the lower end of the first swivel becket 3；When drill bit encounters more hard rock stratum when by upward impact force, keep drilling rod upward
Drive shaft is pushed, the annular flange in drive shaft supports the first swivel becket 3 upwards, so that the first compression first upwards of fixed ring 2
Elastic component 4, elastic deformation occurs for the first elastic component 4, and then absorbs impact force, in case trepan is shaken.
Specifically, the first elastic component 4 includes disc spring.Disc spring is in a circular table shape, and the bearing capacity of disc spring is strong, and it is tight to form short structure
It gathers.It should be noted that the lesser one end of disc spring area of section is supported in stop lug 101, disc spring area of section is biggish
One end is scheduled in the first fixed ring 2.
Specifically, the first fixed sliding block 201 is provided on the lower end of the first fixed ring 2, the first fixed sliding block 201 is supported
On first turning block 301.First fixed ring 2 is connect by the first turning block 301 with the first swivel becket 3, to reduce first
Frictional force between fixed ring 2 and the first swivel becket 3.
Preferably, the first turning block 301 can be the traveller that 2 lower end of the first fixed ring is arranged in, and traveller can pass through
The mode of casting and the first fixed ring 2 be integrally formed or the first traveller by be clamped, be bolted etc. dismountable mode with
The connection of first fixed ring 2.
Preferably, the first fixed sliding block 201 is multiple, and the multiple first fixed sliding blocks 201 are between the circumferential direction of the first fixed ring 2
Every setting.Multiple first fixed sliding blocks 201 can increase the contact area between the first turning block 301, to reduce first
The pressure that 301 top of turning block is subject to.
In other embodiments, the first fixed sliding block 201 can be in spherical, set accordingly in the bottom end of the first fixed ring 2
Hemispheric groove is set, with while the rotation of the first swivel becket 3, the first fixed sliding block 201 rolls in groove, and then reduces
Frictional force between first fixed ring 2 and the first swivel becket 3.
Specifically, the upper end edge of the first swivel becket 3 is circumferentially spaced is provided with multiple first turning blocks 301, and first turn
Movable slider 301 is supported on the first fixed sliding block 201.First fixed ring 2 and the first swivel becket 3 pass through the first fixed sliding block 201
It is connected with the first turning block 301, to further decrease the frictional force between the first fixed ring 2 and the first swivel becket 3.
It should be noted that the distance between each first fixed sliding block 201 is arranged, reasonably to prevent the first turning block
301 snap between the two neighboring first fixed sliding block 201；And the distance between each first turning block 301 is reasonably set,
To prevent the first fixed sliding block 201 from snapping onto two neighboring first turning block 301；To guarantee that the first swivel becket 3 can connect
Continuous rotation.
Specifically, thrust bearing further include: the second fixed ring 6, the second swivel becket 5, the first inner sleeve 9, the second inner sleeve
10, the first baffle ring 8 and the second elastic component 7；The top of second swivel becket 5 is connect with the bottom end of the first swivel becket 3, and second is solid
Determine the lower part that the second swivel becket 5 is arranged in ring 6；Second sliding slot is provided on the outer wall of second fixed ring 6, the first outer tube 1
The second protrusion is provided on inner wall, the second protrusion is slidably installed in second sliding slot；First baffle ring 8 and the first outer tube 1
Lower end removably connects, and annular protrusion 801 is provided on the inner wall of the first baffle ring 8, and the second elastic component 7 is arranged second
Between fixed ring 6 and annular protrusion 801；After the bottom end of first inner sleeve 9 passes through the first fixed ring 2, support in the first rotation
On the upper end of ring 3；After the top of second inner sleeve 10 passes through the second fixed ring 6, support on the lower end of the second swivel becket 5；It drives
Moving axis is threaded through in the first inner sleeve 9, the second inner sleeve 10, the first swivel becket 3 and the second swivel becket 5, and drive shaft is upper
Annular flange support in the lower end of the second inner sleeve 10.Thrust bearing can bear the thrust along axial both direction, and
The bearing capacity of both direction is close, easy for installation without adjusting the direction of thrust bearing when installation；It can make second when installing
The bottom end of inner sleeve 10 is supported in annular flange, or entire thrust bearing is reversed 180 °, makes the top of the first inner sleeve 9
It supports in annular flange.
It should be noted that the structure of the second fixed ring 6 and the first fixed ring 2 is substantially the same, the second swivel becket 5 with the
The structure of one swivel becket 3 is substantially the same, and the structure of the second elastic component 7 and the first elastic component 4 is substantially the same, and details are not described herein.
The length of the first inner sleeve 9 of reasonable setting, so that the lower end of the first inner sleeve 9 is supported in the first fixed ring 2
Behind upper end, the top of the first inner sleeve 9 and the top of the first outer tube 1 are in the same plane.
Specifically, between the first baffle ring 8 and the first outer tube 1 be detachably connected can there are many, such as: first stops
Baffle ring 8 can be connect with the first outer tube 1 by bolted connection, or be provided with external screw thread on the first outer tube 1,
Internal screw thread, internal and external screw thread cooperation, to realize the first baffle ring 8 and the first outer tube are provided on the inner wall of the first baffle ring 8
Connection between 1.
Specifically, the upper end of the second fixed ring 6 is provided with the second fixed sliding block, and the second fixed sliding block is supported in the second rotation
The lower end of ring 5.Second fixed ring 6 is connect by the second fixed sliding block with the second swivel becket 5, with the second fixed ring 6 of reduction and the
Frictional force between two swivel beckets 5.The structure of second fixed sliding block and the structure of the first fixed sliding block 201 are substantially similar, herein
It repeats no more.
Preferably, the second fixed sliding block is multiple, and the multiple second fixed sliding blocks are set along the second the circumferentially spaced of fixed ring 6
It sets.Multiple second fixed sliding blocks can increase the contact area between the second swivel becket 5, with reduce 5 top of the second swivel becket by
The pressure arrived.
Specifically, the lower end edge of the second swivel becket 5 is circumferentially spaced is provided with multiple second turning blocks, and the second rotation is slided
Block is abutted with the second fixed sliding block.Second fixed ring 6 and the second swivel becket 5 are connected by the second fixed sliding block and the second turning block
It connects, to further decrease the frictional force between the second fixed ring 6 and the second swivel becket 5.
It should be noted that the distance between each second fixed sliding block is arranged, reasonably to prevent the second turning block card
Enter between the two neighboring second fixed sliding block；And the distance between each second turning block is reasonably set, to prevent second
Fixed sliding block snaps onto two neighboring second turning block；To guarantee that the second swivel becket 5 can be rotated continuously.
The installation process of straight thrust bearing provided in this embodiment are as follows: the first elastic component 4 is put into the first outer tube 1 first
It is interior, and support the first elastic component 4 in stop lug 101, be sequentially placed into later, the first fixed ring 2, the first swivel becket 3,
Second swivel becket 5, the second fixed ring 6 and the second elastic component 7, support the top of the first fixed ring 2 in the first elastic component 4
On bottom end, the first fixed sliding block 201 of 2 bottom end of the first fixed ring support on the first swivel becket 3 on first turning block 301,
The second turning block that the bottom end of first swivel becket 3 supports on the bottom end of the second swivel becket 5, on the second swivel becket 5 is supported
Second in second fixed ring 6 fixes on sliding block, the top of the second elastic component 7 is supported on the bottom end of the second fixed ring 6, later
First baffle ring 8 is mounted on the bottom end of the first outer tube 1, the first inner sleeve 9 is threaded through in the first fixed ring 2, and the
One inner sleeve 9 is supported on the first swivel becket 3；The second inner sleeve 10 is threaded through in the second fixed ring 6 again, makes the second inner sleeve
It supports on the bottom end of the second swivel becket 5 at 10 end；Drive shaft is finally threaded through the second inner sleeve 10, the second swivel becket 5,
In one swivel becket 3 and the first inner sleeve 9, support annular flange in the bottom end of the second outer tube 14.
In use, drive shaft turns to be to drive drilling rod to rotate, and then make the end of drilling rod drill out well casing in underground, it is same with this
When drive shaft drive the first swivel becket 3 and the second swivel becket 5 rotation；When drill bit encounters more hard rock stratum, drill bit by
Upward impact force, and then drilling rod is made to push up drive shaft, the annular flange in drive shaft supports the second inner sleeve 10 upwards,
So that the second inner sleeve 10 supports the second swivel becket 5, the first swivel becket 3 and the first fixed ring 2, and then the first fixed ring upwards
2 compress the first elastic component 4 upwards, make the first elastic component 4 that elastic deformation occur, and then absorb impact force, in case trepan is shaken.
Specifically, thrust bearing further include: the second outer tube 14, third elastic component 11, third fixed ring 12 and third
Swivel becket 13；The top of second outer tube 14 is connect with the bottom end of the first baffle ring 8, is provided on the inner wall of the second outer tube 14
Third protrusion is provided with third sliding slot in third fixed ring 12, and third fixed ring 12 is arranged in the second outer tube 14, and the
Three protrusions are slidably installed in third sliding slot；Third elastic component 11 is arranged between annular protrusion 801 and third fixed ring 12；Third
The lower part of third fixed ring 12 is arranged in swivel becket 13, and the upper end of third swivel becket 13 is supported in the bottom end of the second inner sleeve 10
On, the upper annular flange of drive shaft is supported in the lower end of the third swivel becket 13.When the annular flange in drive shaft is upward
When supporting third swivel becket 13, simultaneously elastic deformation occurs for third elastic component 11 and the first elastic component 4, to further avoid drilling well
Machine is shaken.
In other embodiments, it is removably connected with the second baffle ring 16 in the lower part of the second outer tube 14, second stops
It is provided with protrusion on the inner wall of baffle ring 16, raised lower part is arranged the 4th elastic component 17, the lower part setting of the 4th elastic component 17 the
The 4th swivel becket 19 is arranged in the lower part of four fixed rings 18, the 4th fixed ring 18, between the 4th swivel becket 19 and third swivel becket 13
Third inner sleeve 15 is set, when the annular flange in drive shaft supports four swivel beckets 19 upwards, the 4th elastic component 17, third bullet
Elastic deformation occurs for property part 11 and the first elastic component 4, is shaken with further avoiding trepan.
In the present invention, unless otherwise specific regulation, the arts such as term " installation ", " connected ", " connection ", " fixation "
Language shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removably connect, or be integrally formed, and can be machinery
Connection is also possible to be electrically connected or can communicate each other；It can be directly connected, can also be indirectly connected with by intermediate medium,
It can be the connection inside two elements or the interaction relationship of two elements, unless otherwise restricted clearly.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of thrust bearing characterized by comprising the first outer tube, the first elastic component, the first fixed ring and first turn
Rotating ring；The top of first outer tube, which is internally protruded, is formed with stop lug, is arranged on the outer wall of first fixed ring
There is first sliding groove, be provided with the first protrusion on the inner wall of first outer tube, the first fixed ring setting is described the
In one outer tube, and first protrusion is slidably installed in the first sliding groove；First elastic component is arranged in the backstop
Between flange and first fixed ring, and the top of first elastic component is connect with the stop lug, first bullet
The bottom end of property part is connect with the top of first fixed ring；First swivel becket is supported under first fixed ring
End, drive shaft is threaded through in first fixed ring and first swivel becket, and the annular flange in drive shaft is supported in institute
On the bottom end for stating the first swivel becket.
2. thrust bearing according to claim 1, which is characterized in that first elastic component includes disc spring.
3. thrust bearing according to claim 1, which is characterized in that be provided with first on the lower end of first fixed ring
Fixed sliding block, the described first fixed sliding block are supported on first turning block.
4. thrust bearing according to claim 3, which is characterized in that the first fixed sliding block be it is multiple, it is multiple described
Circumferentially spaced setting of the first fixed sliding block along first fixed ring.
5. thrust bearing according to claim 4, which is characterized in that circumferentially spaced on the upper end of first swivel becket
Be provided with multiple first turning blocks, first turning block is supported on the described first fixed sliding block.
6. thrust bearing according to claim 1-5, which is characterized in that the thrust bearing further include: second
Fixed ring, the second swivel becket, the first inner sleeve, the second inner sleeve, the first baffle ring and the second elastic component；Second rotation
The top of ring is connect with the bottom end of first swivel becket, and the lower part of second swivel becket is arranged in second fixed ring；
It is provided with second sliding slot on the outer wall of second fixed ring, is provided with the second protrusion on the inner wall of first outer tube,
Second protrusion is slidably installed in the second sliding slot；The lower end of first baffle ring and first outer tube is detachable
Connection, annular protrusion is provided on the inner wall of first baffle ring, the second elastic component setting is solid described second
Determine between ring and the annular protrusion；After the bottom end of first inner sleeve passes through first fixed ring, support described
On the upper end of first swivel becket；After the top of second inner sleeve passes through second fixed ring, support at described second turn
On the lower end of rotating ring；The drive shaft be threaded through first inner sleeve, second inner sleeve, first swivel becket and
In second swivel becket, and the upper annular flange of drive shaft is supported in the lower end of second inner sleeve.
7. thrust bearing according to claim 6, which is characterized in that it is solid that the upper end of second fixed ring is provided with second
Fixed slider, the described second fixed sliding block are supported in the lower end of second swivel becket.
8. thrust bearing according to claim 7, which is characterized in that the second fixed sliding block be it is multiple, it is multiple described
Circumferentially spaced setting of the second fixed sliding block along second fixed ring.
9. thrust bearing according to claim 7, which is characterized in that the lower end edge of second swivel becket is circumferentially spaced
Multiple second turning blocks are provided with, second turning block is abutted with the described second fixed sliding block.
10. thrust bearing according to claim 6, which is characterized in that the thrust bearing further include: the second outer tube,
Third elastic component, third fixed ring and third swivel becket；The bottom on the top of second outer tube and first baffle ring
End connects, and is provided with third protrusion on the inner wall of second outer tube, is provided with third sliding slot in the third fixed ring,
The third fixed ring is arranged in second outer tube, and third protrusion is slidably installed in the third sliding slot；It is described
Third elastic component is arranged between the annular protrusion and the third fixed ring；Third swivel becket setting is described the
The lower part of three fixed rings, and the upper end of the third swivel becket is supported on the bottom end of second inner sleeve, drive shaft it is upper
Annular flange support in the lower end of the third swivel becket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820990728.7U CN208546436U (en) | 2018-06-26 | 2018-06-26 | Thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820990728.7U CN208546436U (en) | 2018-06-26 | 2018-06-26 | Thrust bearing |
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| Publication Number | Publication Date |
|---|---|
| CN208546436U true CN208546436U (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820990728.7U Expired - Fee Related CN208546436U (en) | 2018-06-26 | 2018-06-26 | Thrust bearing |
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| CN (1) | CN208546436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388380A (en) * | 2019-08-26 | 2019-10-29 | 李堃尧 | A kind of compound thrust bearing of adaptive skid of turbodrill |
-
2018
- 2018-06-26 CN CN201820990728.7U patent/CN208546436U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388380A (en) * | 2019-08-26 | 2019-10-29 | 李堃尧 | A kind of compound thrust bearing of adaptive skid of turbodrill |
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