CN106545572A - A kind of inserted tooth hob drill bit fluid bearing - Google Patents
A kind of inserted tooth hob drill bit fluid bearing Download PDFInfo
- Publication number
- CN106545572A CN106545572A CN201710021322.8A CN201710021322A CN106545572A CN 106545572 A CN106545572 A CN 106545572A CN 201710021322 A CN201710021322 A CN 201710021322A CN 106545572 A CN106545572 A CN 106545572A
- Authority
- CN
- China
- Prior art keywords
- outer ring
- retainer plate
- antiskid
- damping block
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000012530 fluid Substances 0.000 title claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 239000000956 alloy Substances 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 230000003116 impacting effect Effects 0.000 abstract description 3
- 238000004080 punching Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/527—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to vibration and noise
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2352/00—Apparatus for drilling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to fluid bearing field, more particularly to a kind of inserted tooth hob drill bit fluid bearing.Its technical scheme is：A kind of inserted tooth hob drill bit fluid bearing, including outer ring and inner ring, are provided with retainer between outer ring and inner ring, some rolling elements are provided with retainer, and rolling element is contacted with outer ring and inner ring respectively；Retainer plate is arranged with outside the outer ring, some high-strength springs between retainer plate and outer ring, are connected with, some antiskid mechanisms between the end of outer ring and the end of retainer plate, are connected with；It is provided with below outer ring between the bottom of damping block, damping block and outer ring and is connected with some high-strength springs, between damping block and retainer plate, is provided with some anti-lateral movement mechanisms.The invention provides with the inserted tooth hob drill bit fluid bearing of vibration damping, a kind of side and end face can solve the problems, such as that existing drill bit is easily damaged when impacting.
Description
Technical field
The present invention relates to fluid bearing field, more particularly to a kind of inserted tooth hob drill bit fluid bearing.
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, drilling rod and bit, the hobboing cutter on 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, acts 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, makes hob teeth that impact, extruding and shear action, fractured rock are produced to rock.The cutter head of anti-well rig
It is fixed on drill main body by bearing.
Number of patent application discloses a kind of shockproof bearing for the patent of invention of CN201520601259.1, including in bearing
Circle, bearing outer ring and multiple rollers, the lateral wall of the madial wall and bearing inner race of the bearing outer ring are equipped with and roll for roller
The first raceway, the roller includes and roller and is respectively provided at the ball of roller both sides, and the first raceway both sides are provided with confession
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 are oily by first
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 are connected with the first oil circuit by the second oil circuit.The bearing effectively increases lubricity, further carries
High service life.
When anti-well rig works, under the impact of irregular landwaste, the vibration of cutter head is larger, so as to cutter head and drill bit master
Larger rigid impact is produced between body, the damage of cutter head end or drill main body is easily caused.Cutter head is connected by bearing
After drill main body, cutter head is rotated only with respect to head body, when cutter head side is subject to rigid impact, is subtracted as which does not have
Shake function, will be damaged because impacting so that the scrappage of cutter head is improved.
The content of the invention
Instant invention overcomes the deficiencies in the prior art, there is provided a kind of side and end face can be with the inserted tooth hob drill bit liquid of vibration damping
Last item holds, and solves the problems, such as that existing drill bit is easily damaged when impacting.
To solve above-mentioned technical problem, the present invention is employed the following technical solutions：
A kind of inserted tooth hob drill bit fluid bearing, including outer ring and inner ring, are provided with retainer between outer ring and inner ring, protect
Hold, rolling element is contacted with outer ring and inner ring respectively；Retainer plate is arranged with outside the outer ring, it is fixed
Some high-strength springs are connected between circle and outer ring, some antiskids between the end of outer ring and the end of retainer plate, are connected with
Mechanism；It is provided with below outer ring between the bottom of damping block, damping block and outer ring and is connected with some high-strength springs, damping block
Some anti-lateral movement mechanisms are provided between retainer plate.
Used as the preferred version of the present invention, the end of the retainer plate is provided with retainer plate antiskid groove, the end of outer ring
Outer ring antiskid groove is provided with, antiskid mechanism includes antiskid bar and anti-drift spring, and one end of anti-drift spring is fixed on
In the antiskid groove of outer ring, the other end of anti-drift spring is fixed with one end of antiskid bar, and the other end of antiskid bar is sheathed on
In retainer plate antiskid groove.
Used as the preferred version of the present invention, the anti-lateral movement mechanism includes anti-sidesway bar, and anti-sidesway bar is fixed on damping block
End, anti-sidesway bar is parallel with the central axis direction of retainer plate, and retainer plate bottom is provided with parallel to retainer plate central shaft
Anti- sidesway groove, anti-sidesway rod set is in anti-sidesway groove.
Used as the preferred version of the present invention, the damping block bottom is fixed with thrust ball bearing, and thrust ball bearing includes
Circle and lower circle, are provided with thrust ball between Shang Quan and lower circle, the one end away from thrust ball and the damping block of upper circle are fixed.
Used as the preferred version of the present invention, the high-strength spring is made up of 51CrMoV4 alloys, antiskid bar and anti-side
Move bar to be made up of 35CrMo alloys.
Compared with prior art, the invention has the beneficial effects as follows：
1st, retainer plate is arranged with outside outer ring of the present invention, be connected with some high-strength springs, work as knife between retainer plate and outer ring
When rostral face is subject to rigid impact, the high-strength spring between bearing retainer plate and outer ring can make cutter head obtain certain buffering,
Reduce the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head is damaged.Antiskid mechanism can avoid retainer plate from existing
Sliding is produced relative to outer ring by during axial force, it is ensured that its job stability.Damping block, damping block are provided with below outer ring
Some high-strength springs are connected with and the bottom of outer ring between, when cutter head is subject to axial impact, between damping block and outer ring
High-strength spring can reduce the rigid impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism is avoided that cutter head
Sidesway is produced relative to damping block when side is impacted.
2nd, one end of anti-drift spring is fixed in the antiskid groove of outer ring, and antiskid bar is pushed retainer plate by anti-drift spring
Antiskid groove, it is to avoid retainer plate produces sliding relative to outer ring, it is ensured that connective stability.
3rd, anti-sidesway bar is inserted in anti-sidesway groove, damping block can be avoided to produce sidesway relative to outer ring, it is ensured that working stability.
4th, damping block bottom is fixed with thrust ball bearing, and thrust ball bearing is contacted with drill main body, can reduce bearing and bore
Friction between head main body, it is to avoid drill main body or cutter head are impaired.
5th, high-strength spring is made up of 51CrMoV4 alloys, it is ensured that spring has enough support forces；Antiskid bar and anti-side
Move bar to be made up of 35CrMo alloys, it is ensured that antiskid bar and anti-sidesway bar have enough strength and stiffness.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure, 1- outer rings, 2- retainers, 3- rolling elements, 4- retainer plates, 5- antiskids mechanism, 6- damping blocks, the anti-sidesways of 7-
Mechanism, 8- thrust ball bearings, 51- antiskid bars, 52- anti-drift springs, the anti-sidesway bars of 71-.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Embodiment one
A kind of inserted tooth hob drill bit fluid bearing, including outer ring 1 and inner ring, are provided with retainer between outer ring 1 and inner ring
2, some rolling elements 3 are provided with retainer 2, rolling element 3 is contacted with outer ring 1 and inner ring respectively；It is arranged with outside the outer ring 1 solid
Surely 4 are enclosed, some high-strength springs is connected between retainer plate 4 and outer ring 1, is connected between the end of outer ring 1 and the end of retainer plate 4
It is connected to some antiskid mechanisms 5；The lower section of outer ring 1 is provided with damping block 6, if being connected between the bottom of damping block 6 and outer ring 1
Dry high-strength spring, is provided with some anti-lateral movement mechanisms 7 between damping block 6 and retainer plate 4.
Retainer plate 4 is arranged with outside outer ring of the present invention 1, some high-strength springs between retainer plate 4 and outer ring 1, are connected with, when
When cutter head side is subject to rigid impact, the high-strength spring between bearing retainer plate 4 and outer ring 1 can make cutter head obtain certain delaying
Punching, reduces the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head is damaged.Antiskid mechanism 5 can avoid fixing
Circle 4 produces sliding relative to outer ring 1 when by axial force, it is ensured that its job stability.The lower section of outer ring 4 is provided with damping block
6, be connected with some high-strength springs between damping block 6 and the bottom of outer ring 1, when cutter head is subject to axial impact, damping block 6 with
High-strength spring between outer ring 1 can reduce the rigid impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism
7 produce sidesway relative to damping block 6 when being avoided that cutter head side is impacted.
Embodiment two
A kind of inserted tooth hob drill bit fluid bearing, including outer ring 1 and inner ring, are provided with retainer between outer ring 1 and inner ring
2, some rolling elements 3 are provided with retainer 2, rolling element 3 is contacted with outer ring 1 and inner ring respectively；It is arranged with outside the outer ring 1 solid
Surely 4 are enclosed, some high-strength springs is connected between retainer plate 4 and outer ring 1, is connected between the end of outer ring 1 and the end of retainer plate 4
It is connected to some antiskid mechanisms 5；The lower section of outer ring 1 is provided with damping block 6, if being connected between the bottom of damping block 6 and outer ring 1
Dry high-strength spring, is provided with some anti-lateral movement mechanisms 7 between damping block 6 and retainer plate 4.
Retainer plate 4 is arranged with outside outer ring of the present invention 1, some high-strength springs between retainer plate 4 and outer ring 1, are connected with, when
When cutter head side is subject to rigid impact, the high-strength spring between bearing retainer plate 4 and outer ring 1 can make cutter head obtain certain delaying
Punching, reduces the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head is damaged.Antiskid mechanism 5 can avoid fixing
Circle 4 produces sliding relative to outer ring 1 when by axial force, it is ensured that its job stability.The lower section of outer ring 4 is provided with damping block
6, be connected with some high-strength springs between damping block 6 and the bottom of outer ring 1, when cutter head is subject to axial impact, damping block 6 with
High-strength spring between outer ring 1 can reduce the rigid impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism
7 produce sidesway relative to damping block 6 when being avoided that cutter head side is impacted.
The end of the retainer plate 4 is provided with retainer plate antiskid groove, and the end of outer ring 1 is provided with outer ring antiskid groove,
Antiskid mechanism 5 includes antiskid bar 51 and anti-drift spring 52, and outer ring antiskid groove is fixed in one end of anti-drift spring 52
Interior, the other end of anti-drift spring 52 is fixed with one end of antiskid bar 51, and the other end of antiskid bar 51 is sheathed on retainer plate 4
Antiskid groove in.One end of anti-drift spring 52 is fixed in the antiskid groove of outer ring, and anti-drift spring 52 is by antiskid bar 51
Push retainer plate antiskid groove, it is to avoid retainer plate 4 produces sliding relative to outer ring 1, it is ensured that connective stability.
Embodiment three
A kind of inserted tooth hob drill bit fluid bearing, including outer ring 1 and inner ring, are provided with retainer between outer ring 1 and inner ring
2, some rolling elements 3 are provided with retainer 2, rolling element 3 is contacted with outer ring 1 and inner ring respectively；It is arranged with outside the outer ring 1 solid
Surely 4 are enclosed, some high-strength springs is connected between retainer plate 4 and outer ring 1, is connected between the end of outer ring 1 and the end of retainer plate 4
It is connected to some antiskid mechanisms 5；The lower section of outer ring 1 is provided with damping block 6, if being connected between the bottom of damping block 6 and outer ring 1
Dry high-strength spring, is provided with some anti-lateral movement mechanisms 7 between damping block 6 and retainer plate 4.
Retainer plate 4 is arranged with outside outer ring of the present invention 1, some high-strength springs between retainer plate 4 and outer ring 1, are connected with, when
When cutter head side is subject to rigid impact, the high-strength spring between bearing retainer plate 4 and outer ring 1 can make cutter head obtain certain delaying
Punching, reduces the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head is damaged.Antiskid mechanism 5 can avoid fixing
Circle 4 produces sliding relative to outer ring 1 when by axial force, it is ensured that its job stability.The lower section of outer ring 4 is provided with damping block
6, be connected with some high-strength springs between damping block 6 and the bottom of outer ring 1, when cutter head is subject to axial impact, damping block 6 with
High-strength spring between outer ring 1 can reduce the rigid impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism
7 produce sidesway relative to damping block 6 when being avoided that cutter head side is impacted.
The end of the retainer plate 4 is provided with retainer plate antiskid groove, and the end of outer ring 1 is provided with outer ring antiskid groove,
Antiskid mechanism 5 includes antiskid bar 51 and anti-drift spring 52, and outer ring antiskid groove is fixed in one end of anti-drift spring 52
Interior, the other end of anti-drift spring 52 is fixed with one end of antiskid bar 51, and the other end of antiskid bar 51 is sheathed on retainer plate 4
Antiskid groove in.One end of anti-drift spring 52 is fixed in the antiskid groove of outer ring, and anti-drift spring 52 is by antiskid bar 51
Push retainer plate antiskid groove, it is to avoid retainer plate 4 produces sliding relative to outer ring 1, it is ensured that connective stability.
The anti-lateral movement mechanism 7 includes anti-sidesway bar 71, and anti-sidesway bar 71 is fixed on the end of damping block 6, anti-sidesway bar
71 is parallel with the central axis direction of retainer plate 4, and 4 bottom of retainer plate is provided with the anti-sidesway groove parallel to 4 central shaft of retainer plate, prevents
Sidesway bar 71 is sheathed in anti-sidesway groove.Anti- sidesway bar 71 is inserted in anti-sidesway groove, and damping block 6 can be avoided to produce relative to outer ring 1
Raw sidesway, it is ensured that working stability.
Example IV
A kind of inserted tooth hob drill bit fluid bearing, including outer ring 1 and inner ring, are provided with retainer between outer ring 1 and inner ring
2, some rolling elements 3 are provided with retainer 2, rolling element 3 is contacted with outer ring 1 and inner ring respectively；It is arranged with outside the outer ring 1 solid
Surely 4 are enclosed, some high-strength springs is connected between retainer plate 4 and outer ring 1, is connected between the end of outer ring 1 and the end of retainer plate 4
It is connected to some antiskid mechanisms 5；The lower section of outer ring 1 is provided with damping block 6, if being connected between the bottom of damping block 6 and outer ring 1
Dry high-strength spring, is provided with some anti-lateral movement mechanisms 7 between damping block 6 and retainer plate 4.
Retainer plate 4 is arranged with outside outer ring of the present invention 1, some high-strength springs between retainer plate 4 and outer ring 1, are connected with, when
When cutter head side is subject to rigid impact, the high-strength spring between bearing retainer plate 4 and outer ring 1 can make cutter head obtain certain delaying
Punching, reduces the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head is damaged.Antiskid mechanism 5 can avoid fixing
Circle 4 produces sliding relative to outer ring 1 when by axial force, it is ensured that its job stability.The lower section of outer ring 4 is provided with damping block
6, be connected with some high-strength springs between damping block 6 and the bottom of outer ring 1, when cutter head is subject to axial impact, damping block 6 with
High-strength spring between outer ring 1 can reduce the rigid impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism
7 produce sidesway relative to damping block 6 when being avoided that cutter head side is impacted.
The end of the retainer plate 4 is provided with retainer plate antiskid groove, and the end of outer ring 1 is provided with outer ring antiskid groove,
Antiskid mechanism 5 includes antiskid bar 51 and anti-drift spring 52, and outer ring antiskid groove is fixed in one end of anti-drift spring 52
Interior, the other end of anti-drift spring 52 is fixed with one end of antiskid bar 51, and the other end of antiskid bar 51 is sheathed on retainer plate 4
Antiskid groove in.One end of anti-drift spring 52 is fixed in the antiskid groove of outer ring, and anti-drift spring 52 is by antiskid bar 51
Push retainer plate antiskid groove, it is to avoid retainer plate 4 produces sliding relative to outer ring 1, it is ensured that connective stability.
The anti-lateral movement mechanism 7 includes anti-sidesway bar 71, and anti-sidesway bar 71 is fixed on the end of damping block 6, anti-sidesway bar
71 is parallel with the central axis direction of retainer plate 4, and 4 bottom of retainer plate is provided with the anti-sidesway groove parallel to 4 central shaft of retainer plate, prevents
Sidesway bar 71 is sheathed in anti-sidesway groove.Anti- sidesway bar 71 is inserted in anti-sidesway groove, and damping block 6 can be avoided to produce relative to outer ring 1
Raw sidesway, it is ensured that working stability.
6 bottom of the damping block 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, the one end away from thrust ball and the damping block 6 of upper circle are fixed.6 bottom of damping block is fixed with thrust ball
Bearing 8, thrust ball bearing 8 are contacted with drill main body, can reduce the friction between bearing and drill main body, it is to avoid drill main body or
Person's cutter head is damaged.
Embodiment five
A kind of inserted tooth hob drill bit fluid bearing, including outer ring 1 and inner ring, are provided with retainer between outer ring 1 and inner ring
2, some rolling elements 3 are provided with retainer 2, rolling element 3 is contacted with outer ring 1 and inner ring respectively；It is arranged with outside the outer ring 1 solid
Surely 4 are enclosed, some high-strength springs is connected between retainer plate 4 and outer ring 1, is connected between the end of outer ring 1 and the end of retainer plate 4
It is connected to some antiskid mechanisms 5；The lower section of outer ring 1 is provided with damping block 6, if being connected between the bottom of damping block 6 and outer ring 1
Dry high-strength spring, is provided with some anti-lateral movement mechanisms 7 between damping block 6 and retainer plate 4.
Retainer plate 4 is arranged with outside outer ring of the present invention 1, some high-strength springs between retainer plate 4 and outer ring 1, are connected with, when
When cutter head side is subject to rigid impact, the high-strength spring between bearing retainer plate 4 and outer ring 1 can make cutter head obtain certain delaying
Punching, reduces the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head is damaged.Antiskid mechanism 5 can avoid fixing
Circle 4 produces sliding relative to outer ring 1 when by axial force, it is ensured that its job stability.The lower section of outer ring 4 is provided with damping block
6, be connected with some high-strength springs between damping block 6 and the bottom of outer ring 1, when cutter head is subject to axial impact, damping block 6 with
High-strength spring between outer ring 1 can reduce the rigid impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism
7 produce sidesway relative to damping block 6 when being avoided that cutter head side is impacted.
The end of the retainer plate 4 is provided with retainer plate antiskid groove, and the end of outer ring 1 is provided with outer ring antiskid groove,
Antiskid mechanism 5 includes antiskid bar 51 and anti-drift spring 52, and outer ring antiskid groove is fixed in one end of anti-drift spring 52
Interior, the other end of anti-drift spring 52 is fixed with one end of antiskid bar 51, and the other end of antiskid bar 51 is sheathed on retainer plate 4
Antiskid groove in.One end of anti-drift spring 52 is fixed in the antiskid groove of outer ring, and anti-drift spring 52 is by antiskid bar 51
Push retainer plate antiskid groove, it is to avoid retainer plate 4 produces sliding relative to outer ring 1, it is ensured that connective stability.
The anti-lateral movement mechanism 7 includes anti-sidesway bar 71, and anti-sidesway bar 71 is fixed on the end of damping block 6, anti-sidesway bar
71 is parallel with the central axis direction of retainer plate 4, and 4 bottom of retainer plate is provided with the anti-sidesway groove parallel to 4 central shaft of retainer plate, prevents
Sidesway bar 71 is sheathed in anti-sidesway groove.Anti- sidesway bar 71 is inserted in anti-sidesway groove, and damping block 6 can be avoided to produce relative to outer ring 1
Raw sidesway, it is ensured that working stability.
6 bottom of the damping block 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, the one end away from thrust ball and the damping block 6 of upper circle are fixed.6 bottom of damping block is fixed with thrust ball
Bearing 8, thrust ball bearing 8 are contacted with drill main body, can reduce the friction between bearing and drill main body, it is to avoid drill main body or
Person's cutter head is damaged.
The high-strength spring is made up of 51CrMoV4 alloys, and antiskid bar 51 and anti-sidesway bar 71 are by 35CrMo alloy systems
Into.High-strength spring is made up of 51CrMoV4 alloys, it is ensured that spring has enough support forces；Antiskid bar 51 and anti-sidesway bar 71
It is made up of 35CrMo alloys, it is ensured that antiskid bar 51 and anti-sidesway bar 71 have enough strength and stiffness.
Claims (5)
1. a kind of inserted tooth hob drill bit fluid bearing, including outer ring (1) and inner ring, outer ring (1) are provided with holding and inner ring between
Some rolling elements (3) are provided with frame (2), retainer (2), rolling element (3) is contacted with outer ring (1) and inner ring respectively；Its feature
It is to be arranged with retainer plate (4) outside the outer ring (1), between retainer plate (4) and outer ring (1), be connected with some high-strength springs,
Some antiskid mechanisms (5) are connected between the end of outer ring (1) and the end of retainer plate (4)；Outer ring is provided with below (1)
Damping block (6), is connected with some high-strength springs, damping block (6) and retainer plate between damping block (6) and the bottom of outer ring (1)
(4) some anti-lateral movement mechanisms (7) are provided between.
2. a kind of inserted tooth hob drill bit fluid bearing according to claim 1, it is characterised in that the retainer plate (4)
End is provided with retainer plate antiskid groove, and the end of outer ring (1) is provided with outer ring antiskid groove, and antiskid mechanism (5) is including anti-
Sliding bar (51) and anti-drift spring (52), one end of anti-drift spring (52) are fixed in the antiskid groove of outer ring, antiskid bullet
One end of the other end of spring (52) and antiskid bar (51) is fixed, and the other end of antiskid bar (51) is sheathed on retainer plate (4)
In antiskid groove.
3. a kind of inserted tooth hob drill bit fluid bearing according to claim 1 and 2, it is characterised in that the anti-lateral machine
Structure (7) includes anti-sidesway bar (71), and anti-sidesway bar (71) is fixed on the end of damping block (6), anti-sidesway bar (71) and retainer plate
(4) central axis direction is parallel, and retainer plate (4) bottom is provided with the anti-sidesway groove parallel to retainer plate (4) central shaft, anti-sidesway
Bar (71) is sheathed in anti-sidesway groove.
4. a kind of inserted tooth hob drill bit fluid bearing according to claim 1, it is characterised in that damping block (6) bottom
Portion is fixed with thrust ball bearing (8), and thrust ball bearing (8) includes Shang Quan and lower circle, is provided with thrust ball between Shang Quan and lower circle,
One end away from thrust ball of upper circle is fixed with damping block (6).
5. a kind of inserted tooth hob drill bit fluid bearing according to claim 1, it is characterised in that the high-strength spring is
51CrMoV4 alloys are made, and antiskid bar (51) and anti-sidesway bar (71) are made up of 35CrMo alloys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021322.8A CN106545572B (en) | 2017-01-11 | 2017-01-11 | A kind of inserted tooth hob drill bit fluid bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021322.8A CN106545572B (en) | 2017-01-11 | 2017-01-11 | A kind of inserted tooth hob drill bit fluid bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106545572A true CN106545572A (en) | 2017-03-29 |
| CN106545572B CN106545572B (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710021322.8A Expired - Fee Related CN106545572B (en) | 2017-01-11 | 2017-01-11 | A kind of inserted tooth hob drill bit fluid bearing |
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| Country | Link |
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| CN (1) | CN106545572B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1309836A (en) * | 1970-09-15 | 1973-03-14 | Secr Defence | Bearing assembly for a shaft |
| JPS6479415A (en) * | 1987-04-23 | 1989-03-24 | Mecanique Magnetique Sa | Auxiliary radial bearing for magnetic bearing |
| US20090052819A1 (en) * | 2004-09-01 | 2009-02-26 | Siemens Aktiengesellschaft | Spindle bearing device and corresponding bearing method |
| CN102927129A (en) * | 2012-11-14 | 2013-02-13 | 东方电气集团东方电机有限公司 | Spring bundle bearing bidirectional eccentric thrust bearing |
| DE102012005931A1 (en) * | 2012-03-26 | 2013-09-26 | Thyssenkrupp Presta Aktiengesellschaft | Bearing for ball screw of steering system for motor car, has spring elements arranged between bearing housing and outer bearing ring, and stop element arranged in direction of outer bearing ring that is supported against bearing housing |
| WO2015073361A1 (en) * | 2013-11-14 | 2015-05-21 | Borgwarner Inc. | Bearing arrangement |
-
2017
- 2017-01-11 CN CN201710021322.8A patent/CN106545572B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1309836A (en) * | 1970-09-15 | 1973-03-14 | Secr Defence | Bearing assembly for a shaft |
| JPS6479415A (en) * | 1987-04-23 | 1989-03-24 | Mecanique Magnetique Sa | Auxiliary radial bearing for magnetic bearing |
| US20090052819A1 (en) * | 2004-09-01 | 2009-02-26 | Siemens Aktiengesellschaft | Spindle bearing device and corresponding bearing method |
| DE102012005931A1 (en) * | 2012-03-26 | 2013-09-26 | Thyssenkrupp Presta Aktiengesellschaft | Bearing for ball screw of steering system for motor car, has spring elements arranged between bearing housing and outer bearing ring, and stop element arranged in direction of outer bearing ring that is supported against bearing housing |
| CN102927129A (en) * | 2012-11-14 | 2013-02-13 | 东方电气集团东方电机有限公司 | Spring bundle bearing bidirectional eccentric thrust bearing |
| WO2015073361A1 (en) * | 2013-11-14 | 2015-05-21 | Borgwarner Inc. | Bearing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106545572B (en) | 2018-07-10 |
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Granted publication date: 20180710 |