CN206352621U - A kind of damping bearing for inserted tooth hob drill bit - Google Patents
A kind of damping bearing for inserted tooth hob drill bit Download PDFInfo
- Publication number
- CN206352621U CN206352621U CN201720033653.9U CN201720033653U CN206352621U CN 206352621 U CN206352621 U CN 206352621U CN 201720033653 U CN201720033653 U CN 201720033653U CN 206352621 U CN206352621 U CN 206352621U
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- China
- Prior art keywords
- bearing
- damping
- outer ring
- ring
- plunger shaft
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- Expired - Fee Related
Links
- 238000013016 damping Methods 0.000 title claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000005096 rolling process Methods 0.000 claims abstract description 35
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 230000035939 shock Effects 0.000 description 20
- 239000003921 oil Substances 0.000 description 12
- 230000003139 buffering effect Effects 0.000 description 9
- 238000005553 drilling Methods 0.000 description 9
- 230000001629 suppression Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model is related to bit bearing field, more particularly to a kind of damping bearing for inserted tooth hob drill bit.Its technical scheme is：A kind of damping bearing for inserted tooth hob drill bit, including outer ring and inner ring, are provided with retainer, retainer between outer ring and inner ring and are provided with some rolling elements, and rolling element is contacted with outer ring and inner ring respectively；Damper mechanism is additionally provided between the outer ring and inner ring, damper mechanism includes damping ring, damping ring is set in outside inner ring, and some piston bodies are provided with damping ring, and piston body includes piston rod and two piston plates, two piston plates are connected to the two ends of piston rod, region between adjacent pistons body is to be filled with hydraulic oil, plunger shaft to be connected with impact bag in plunger shaft, plunger shaft, impact bag is arranged between outer ring and plunger shaft, and impact bag is connected with plunger shaft.The utility model can buffer the bearing for inserted tooth hob drill bit of hardness impact there is provided a kind of.
Description
Technical field
The utility model is related to bit bearing field, more particularly to a kind of damping bearing for inserted tooth hob drill bit.
Background technology
Anti- well rig technological principle is the motor belt motor hydrodynamic pressure motor by rig, fluid motor-driven tap, and profit
Drilling system is delivered torque to hydraulic power, the hobboing cutter on drilling rod and bit, guide hole drill bit or reaming bit is driven
In the presence of the pressure of the drill, pure rolling or micro sliding are done along bottom rock working face.The axial direction that main frame oil cylinder is produced simultaneously is drawn, pressure
Power, is acted on guide hole drill bit or reaming bit also by unit head, drilling rod, the hobboing cutter of guide hole drill bit is rolled under the pressure of the drill effect
It is dynamic, impact load is produced, hob teeth is produced impact, extruding and shear action, fractured rock to rock.The cutter head of anti-well rig
It is fixed on by bearing on drill main body.
Number of patent application discloses a kind of shockproof bearing for CN201520601259.1 patent of invention, including in bearing
Circle, bearing outer ring and multiple rollers, the madial wall of the bearing outer ring and the lateral wall of bearing inner race are equipped with to be rolled for roller
The first raceway, the roller includes roller and is respectively provided at the ball of roller both sides, and the first raceway both sides are provided with supplying
Second raceway of roller rolls；It is characterized in that：Oil filler point, the oil storage being connected with oil filler point are provided with the bearing outer ring
Chamber, the first oil circuit and multiple first oil-outs being arranged on bearing outer ring inwall, first oil-out pass through the first oil
Road is connected with shoe cream room, is provided with and covers with paint or varnish at first oil-out；Second is additionally provided with the inwall of second raceway to go out
Hydraulic fluid port, second oil-out is connected by the second oil circuit with the first oil circuit.The bearing effectively increases lubricity, further carried
High service life.
Above-mentioned bearing improves effectiveness in vibration suppression by way of changing lubricity, is rolled when the first side of palette knife is by greater impact
Son can not be withstood shocks power, vibrate excessive, and bearing is easily damaged.When the side of cutter head is impacted, due to rolling element and outside
There is gap between circle and inner ring, the vibration of bearing is larger, influence the cutting effect of cutter head, drill bit drilling efficiency is low.
Utility model content
The utility model overcome the deficiencies in the prior art there is provided it is a kind of can buffer hardness impact be used for inserted tooth hob
The bearing of drill bit, solves the problem of vibrating larger when existing bit bearing side is hit.
To solve above-mentioned technical problem, the utility model uses following technical scheme：
A kind of damping bearing for inserted tooth hob drill bit, including outer ring and inner ring, are provided with guarantor between outer ring and inner ring
Hold and some rolling elements are provided with frame, retainer, rolling element is contacted with outer ring and inner ring respectively；Between the outer ring and inner ring also
Damper mechanism is provided with, damper mechanism includes damping ring, and damping ring is set in outside inner ring, if being provided with stem piston in damping ring
Body, piston body includes piston rod and two piston plates, and two piston plates are connected to the two ends of piston rod, adjacent pistons body it
Between region be plunger shaft, be filled with hydraulic oil, plunger shaft in plunger shaft and be connected with impact bag, impact bag be arranged at outer ring with
Between plunger shaft, impact bag is connected with plunger shaft.
As preferred scheme of the present utility model, the damper mechanism is two groups, and two groups of damper mechanisms are respectively arranged at axle
The two ends held, the width of damper mechanism is more than the diameter of rolling element.
As preferred scheme of the present utility model, the bottom of damping block, damping block and outer ring is provided with below the outer ring
Some high-strength springs are connected between portion, high-strength spring is made up of 51CrMoV4 alloys.
As preferred scheme of the present utility model, the damping block bottom is fixed with thrust ball bearing, thrust ball bearing bag
Shang Quan and lower circle are included, thrust ball is provided between Shang Quan and lower circle, one end of the remote thrust ball of upper circle is fixed with damping block.
Compared with prior art, the beneficial effects of the utility model are：
1st, damper mechanism is additionally provided between outer ring of the present utility model and inner ring, row buffering can be entered to bearing.Work as bearing
Side by greater impact when, the impact bag nearest from shock point is squeezed, and hydraulic oil in the side plunger shaft, which is promoted, lives
Cock body is moved to the side away from shock point, can slowly be shunk, be made close to impact after the impact bag expansion away from shock point side
The impact bag of point side gradually recovers.This process makes bearing effectively be buffered, it is to avoid bearing outer ring has relative to bearing inner race
Excessive vibration, it is to avoid rolling element is in the cavity of outer ring and inner ring formation by hardness impact.The utility model has good
Effectiveness in vibration suppression, can reduce bearing damage, and improve the drilling efficiency of drill bit.
2nd, the width of damper mechanism is more than the diameter of rolling element, and when being impacted rolling element, damper mechanism can start
Buffering.
3rd, some high-strength springs are connected between damping block and the bottom of outer ring, when can avoid bearing by axial impact
Excessive vibration.
4th, damping block bottom is fixed with thrust ball bearing, and thrust ball bearing is contacted with drill main body, can reduce bearing and brill
Friction between head main body, it is to avoid bearing is damaged.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is top view of the present utility model.
In figure, 1- outer rings, 2- inner rings, 3- retainers, 4- rolling elements, 5- damper mechanisms, 51- damping rings, 52- piston bodies,
521- piston rods, 522- piston plates, 53- plunger shafts, 54- impact bags, 6- damping blocks, 7- high-strength springs, 8- thrust ball bearings.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
Embodiment one
A kind of damping bearing for inserted tooth hob drill bit, including outer ring 1 and inner ring 2, are set between outer ring 1 and inner ring 2
Have and some rolling elements 4 are provided with retainer 3, retainer 3, rolling element 4 is contacted with outer ring 1 and inner ring 2 respectively；The outer ring 1
Damper mechanism 5 is additionally provided between inner ring 2, damper mechanism 5 includes damping ring 51, and damping ring 51 is set in outside inner ring 2, vibration damping
Some piston bodies 52 are provided with circle 51, piston body 52 includes piston rod 521 and two piston plates 522, two 522 points of piston plates
The region not being connected between the two ends of piston rod 521, adjacent pistons body 52 is that hydraulic pressure is filled with plunger shaft 53, plunger shaft 53
Impact bag 54 is connected with oil, plunger shaft 53, impact bag 54 is arranged between outer ring 1 and plunger shaft 53, impact bag 54 and piston
Chamber 53 is connected.
Damper mechanism 5 is additionally provided between outer ring 1 of the present utility model and inner ring 2, row buffering can be entered to bearing.Work as bearing
Side by greater impact when, the impact bag 54 nearest from shock point is squeezed, and the hydraulic oil in the side plunger shaft 53 is pushed away
Piston body 52 is moved to the side away from shock point, and the impact bag 54 away from shock point side can slowly shrink after expanding, and make
Impact bag 54 close to shock point side gradually recovers.This process makes bearing effectively be buffered, it is to avoid bearing outer ring 1 relative to
Bearing inner race 2 has excessive vibration, it is to avoid rolling element 4 is in the cavity of outer ring 1 and the formation of inner ring 2 by hardness impact.This practicality
It is new that there is good effectiveness in vibration suppression, bearing damage can be reduced, and improve the drilling efficiency of drill bit.
Embodiment two
A kind of damping bearing for inserted tooth hob drill bit, including outer ring 1 and inner ring 2, are set between outer ring 1 and inner ring 2
Have and some rolling elements 4 are provided with retainer 3, retainer 3, rolling element 4 is contacted with outer ring 1 and inner ring 2 respectively；The outer ring 1
Damper mechanism 5 is additionally provided between inner ring 2, damper mechanism 5 includes damping ring 51, and damping ring 51 is set in outside inner ring 2, vibration damping
Some piston bodies 52 are provided with circle 51, piston body 52 includes piston rod 521 and two piston plates 522, two 522 points of piston plates
The region not being connected between the two ends of piston rod 521, adjacent pistons body 52 is that hydraulic pressure is filled with plunger shaft 53, plunger shaft 53
Impact bag 54 is connected with oil, plunger shaft 53, impact bag 54 is arranged between outer ring 1 and plunger shaft 53, impact bag 54 and piston
Chamber 53 is connected.
Damper mechanism 5 is additionally provided between outer ring 1 of the present utility model and inner ring 2, row buffering can be entered to bearing.Work as bearing
Side by greater impact when, the impact bag 54 nearest from shock point is squeezed, and the hydraulic oil in the side plunger shaft 53 is pushed away
Piston body 52 is moved to the side away from shock point, and the impact bag 54 away from shock point side can slowly shrink after expanding, and make
Impact bag 54 close to shock point side gradually recovers.This process makes bearing effectively be buffered, it is to avoid bearing outer ring 1 relative to
Bearing inner race 2 has excessive vibration, it is to avoid rolling element 4 is in the cavity of outer ring 1 and the formation of inner ring 2 by hardness impact.This practicality
It is new that there is good effectiveness in vibration suppression, bearing damage can be reduced, and improve the drilling efficiency of drill bit.
The damper mechanism 5 is two groups, and two groups of damper mechanisms 5 are respectively arranged at the two ends of bearing, the width of damper mechanism 5
More than the diameter of rolling element 4.The width of damper mechanism 5 is more than the diameter of rolling element 4, when being impacted rolling element 4, vibration damping machine
Structure 5 can start buffering.
Embodiment three
A kind of damping bearing for inserted tooth hob drill bit, including outer ring 1 and inner ring 2, are set between outer ring 1 and inner ring 2
Have and some rolling elements 4 are provided with retainer 3, retainer 3, rolling element 4 is contacted with outer ring 1 and inner ring 2 respectively；The outer ring 1
Damper mechanism 5 is additionally provided between inner ring 2, damper mechanism 5 includes damping ring 51, and damping ring 51 is set in outside inner ring 2, vibration damping
Some piston bodies 52 are provided with circle 51, piston body 52 includes piston rod 521 and two piston plates 522, two 522 points of piston plates
The region not being connected between the two ends of piston rod 521, adjacent pistons body 52 is that hydraulic pressure is filled with plunger shaft 53, plunger shaft 53
Impact bag 54 is connected with oil, plunger shaft 53, impact bag 54 is arranged between outer ring 1 and plunger shaft 53, impact bag 54 and piston
Chamber 53 is connected.
Damper mechanism 5 is additionally provided between outer ring 1 of the present utility model and inner ring 2, row buffering can be entered to bearing.Work as bearing
Side by greater impact when, the impact bag 54 nearest from shock point is squeezed, and the hydraulic oil in the side plunger shaft 53 is pushed away
Piston body 52 is moved to the side away from shock point, and the impact bag 54 away from shock point side can slowly shrink after expanding, and make
Impact bag 54 close to shock point side gradually recovers.This process makes bearing effectively be buffered, it is to avoid bearing outer ring 1 relative to
Bearing inner race 2 has excessive vibration, it is to avoid rolling element 4 is in the cavity of outer ring 1 and the formation of inner ring 2 by hardness impact.This practicality
It is new that there is good effectiveness in vibration suppression, bearing damage can be reduced, and improve the drilling efficiency of drill bit.
The damper mechanism 5 is two groups, and two groups of damper mechanisms 5 are respectively arranged at the two ends of bearing, the width of damper mechanism 5
More than the diameter of rolling element 4.The width of damper mechanism 5 is more than the diameter of rolling element 4, when being impacted rolling element 4, vibration damping machine
Structure 5 can start buffering.
The lower section of the outer ring 1 is provided with damping block 6, and some high intensity are connected between damping block 6 and the bottom of outer ring 1
Spring 7, high-strength spring 7 is made up of 51CrMoV4 alloys.Some high intensity are connected between the bottom of damping block 6 and outer ring 1
Spring 7, can avoid bearing by excessive vibration during axial impact.
Example IV
A kind of damping bearing for inserted tooth hob drill bit, including outer ring 1 and inner ring 2, are set between outer ring 1 and inner ring 2
Have and some rolling elements 4 are provided with retainer 3, retainer 3, rolling element 4 is contacted with outer ring 1 and inner ring 2 respectively；The outer ring 1
Damper mechanism 5 is additionally provided between inner ring 2, damper mechanism 5 includes damping ring 51, and damping ring 51 is set in outside inner ring 2, vibration damping
Some piston bodies 52 are provided with circle 51, piston body 52 includes piston rod 521 and two piston plates 522, two 522 points of piston plates
The region not being connected between the two ends of piston rod 521, adjacent pistons body 52 is that hydraulic pressure is filled with plunger shaft 53, plunger shaft 53
Impact bag 54 is connected with oil, plunger shaft 53, impact bag 54 is arranged between outer ring 1 and plunger shaft 53, impact bag 54 and piston
Chamber 53 is connected.
Damper mechanism 5 is additionally provided between outer ring 1 of the present utility model and inner ring 2, row buffering can be entered to bearing.Work as bearing
Side by greater impact when, the impact bag 54 nearest from shock point is squeezed, and the hydraulic oil in the side plunger shaft 53 is pushed away
Piston body 52 is moved to the side away from shock point, and the impact bag 54 away from shock point side can slowly shrink after expanding, and make
Impact bag 54 close to shock point side gradually recovers.This process makes bearing effectively be buffered, it is to avoid bearing outer ring 1 relative to
Bearing inner race 2 has excessive vibration, it is to avoid rolling element 4 is in the cavity of outer ring 1 and the formation of inner ring 2 by hardness impact.This practicality
It is new that there is good effectiveness in vibration suppression, bearing damage can be reduced, and improve the drilling efficiency of drill bit.
The damper mechanism 5 is two groups, and two groups of damper mechanisms 5 are respectively arranged at the two ends of bearing, the width of damper mechanism 5
More than the diameter of rolling element 4.The width of damper mechanism 5 is more than the diameter of rolling element 4, when being impacted rolling element 4, vibration damping machine
Structure 5 can start buffering.
The lower section of the outer ring 1 is provided with damping block 6, and some high intensity are connected between damping block 6 and the bottom of outer ring 1
Spring 7, high-strength spring 7 is made up of 51CrMoV4 alloys.Some high intensity are connected between the bottom of damping block 6 and outer ring 1
Spring 7, can avoid bearing by excessive vibration during axial impact.
The bottom of damping block 6 is fixed with thrust ball bearing 8, and thrust ball bearing 8 includes Shang Quan and lower circle, Shang Quan and lower circle
Between be provided with thrust ball, one end and the damping block 6 of the remote thrust ball of upper circle are fixed.The bottom of damping block 6 is fixed with thrust ball
Bearing 8, thrust ball bearing 8 is contacted with drill main body, can reduce the friction between bearing and drill main body, it is to avoid bearing is damaged.
Claims (4)
1. a kind of damping bearing for inserted tooth hob drill bit, including outer ring (1) and inner ring (2), outer ring (1) and inner ring (2) it
Between be provided with retainer (3), be provided with some rolling elements (4) in retainer (3), rolling element (4) respectively with outer ring (1) and inner ring
(2) contact；Characterized in that, damper mechanism (5) is additionally provided between the outer ring (1) and inner ring (2), damper mechanism (5) bag
Damping ring (51) is included, damping ring (51) is set in inner ring (2) outside, some piston bodies (52), piston are provided with damping ring (51)
Body (52) includes piston rod (521) and two piston plates (522), and two piston plates (522) are connected to piston rod (521)
Region between two ends, adjacent pistons body (52) is that hydraulic oil, plunger shaft (53) are filled with plunger shaft (53), plunger shaft (53)
On be connected with impact bag (54), impact bag (54) is arranged between outer ring (1) and plunger shaft (53), impact bag (54) and plunger shaft
(53) connect.
2. a kind of damping bearing for inserted tooth hob drill bit according to claim 1, it is characterised in that the vibration damping machine
Structure (5) is two groups, and two groups of damper mechanisms (5) are respectively arranged at the two ends of bearing, and the width of damper mechanism (5) is more than rolling element
(4) diameter.
3. a kind of damping bearing for inserted tooth hob drill bit according to claim 1, it is characterised in that the outer ring
(1) damping block (6) is provided with below, some high-strength springs (7) are connected between damping block (6) and the bottom of outer ring (1),
High-strength spring (7) is made up of 51CrMoV4 alloys.
4. a kind of damping bearing for inserted tooth hob drill bit according to claim 1, it is characterised in that the damping block
(6) bottom is fixed with thrust ball bearing (8), and thrust ball bearing (8) includes Shang Quan and lower circle, is provided with and pushes away between Shang Quan and lower circle
Power ball, one end of the remote thrust ball of upper circle and damping block (6) are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033653.9U CN206352621U (en) | 2017-01-11 | 2017-01-11 | A kind of damping bearing for inserted tooth hob drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720033653.9U CN206352621U (en) | 2017-01-11 | 2017-01-11 | A kind of damping bearing for inserted tooth hob drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206352621U true CN206352621U (en) | 2017-07-25 |
Family
ID=59348893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720033653.9U Expired - Fee Related CN206352621U (en) | 2017-01-11 | 2017-01-11 | A kind of damping bearing for inserted tooth hob drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206352621U (en) |
-
2017
- 2017-01-11 CN CN201720033653.9U patent/CN206352621U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |