CN106545572B - 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
- CN106545572B CN106545572B CN201710021322.8A CN201710021322A CN106545572B CN 106545572 B CN106545572 B CN 106545572B CN 201710021322 A CN201710021322 A CN 201710021322A CN 106545572 B CN106545572 B CN 106545572B
- 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.)
- Expired - Fee Related
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- 239000012530 fluid Substances 0.000 title claims abstract description 20
- 238000013016 damping Methods 0.000 claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 239000000956 alloy Substances 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 10
- 238000005553 drilling Methods 0.000 description 7
- 238000004080 punching Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 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
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 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
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- 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 bearings.Its technical solution is：A kind of inserted tooth hob drill bit fluid bearing including outer ring and inner ring, is provided with retainer, several rolling elements is provided in retainer, rolling element contacts respectively with outer ring and inner ring between outer ring and inner ring；Retainer plate is arranged with outside the outer ring, several high-strength springs are connected between retainer plate and outer ring, several antiskid mechanisms are connected between the end of outer ring and the end of retainer plate；Damping block is provided with below outer ring, several high-strength springs are connected between damping block and the bottom of outer ring, several anti-lateral movement mechanisms are provided between damping block and retainer plate.The present invention provides a kind of sides and end face to solve the problems, such as that existing drill bit is easily damaged when being impacted with the inserted tooth hob drill bit fluid bearing of vibration damping.
Description
Technical field
The present invention relates to fluid bearing field more particularly to a kind of inserted tooth hob drill bit fluid bearings.
Background technology
Anti- well drilling machine technological principle is to drive hydraulic motor, hydraulic motor driving tap, and profit by the motor of drilling machine
Drilling system is delivered torque to hydraulic power, drives drilling rod and bit, the hobboing cutter on guide hole drill bit or reaming bit
Under the action of bit pressure, pure rolling or micro sliding are done along bottom rock working face.The axial direction that host oil cylinder generates simultaneously is drawn, pressure
Power is acted on also by power head, drilling rod on guide hole drill bit or reaming bit, and the hobboing cutter of guide hole drill bit is made to be rolled under bit pressure effect
It is dynamic, impact load is generated, hob teeth is made to generate impact, extruding and shear action, fractured rock to rock.The cutter head of anti-well drilling machine
It is fixed on drill main body by bearing.
Number of patent application is that the patent of invention of CN201520601259.1 discloses a kind of shockproof bearing, 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, which are equipped with, to be supplied
Second raceway of roller rolls；It is characterized in that：Oil filler point, the oil storage being connected with oil filler point are provided on the bearing outer ring
Chamber, the first oil circuit and multiple first oil outlets being arranged on bearing outer ring inner wall, first oil outlet pass through the first oil
Road is connected with shoe cream room, and first oil outlet, which is provided with, covers with paint or varnish；Second is additionally provided on the inner wall of second raceway to go out
Hydraulic fluid port, second oil outlet are connected by the second oil circuit with the first oil circuit.The bearing effectively increases lubricity, further carries
High service life.
When anti-well drilling machine works, the vibration of cutter head is larger under the impact of irregular landwaste, so as to cutter head and drill bit master
Larger hardness impact is generated between body, be easy to cause the damage of cutter head end or drill main body.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 impacted by hardness, is subtracted since it does not have
It shakes function, will damage when being impacted so that the scrappage of cutter head improves.
Invention content
The present invention overcomes the deficiencies in the prior art, and providing a kind of side and end face can be with the inserted tooth hob drill bit liquid of vibration damping
Last item is held, and solves the problems, such as that existing drill bit is easily damaged when being impacted.
To solve the technical issues of above-mentioned, the present invention uses following technical scheme：
A kind of inserted tooth hob drill bit fluid bearing including outer ring and inner ring, is provided with retainer between outer ring and inner ring, protect
It holds and several rolling elements is provided in frame, rolling element contacts respectively with outer ring and inner ring；Retainer plate is arranged with outside the outer ring, it is fixed
Several high-strength springs are connected between circle and outer ring, several antiskids are connected between the end of outer ring and the end of retainer plate
Mechanism；Damping block is provided with below outer ring, several high-strength springs, damping block are connected between damping block and the bottom of outer ring
Several anti-lateral movement mechanisms are provided between retainer plate.
As the preferred embodiment of the present invention, the end set of the retainer plate has retainer plate antiskid slot, the end of outer ring
Outer ring antiskid slot 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 slot of outer ring, one end of the other end and antiskid bar of anti-drift spring is fixed, and the other end of antiskid bar is sheathed on
In retainer plate antiskid slot.
As the preferred embodiment 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, retainer plate bottom setting be parallel to retainer plate central shaft
Anti- sidesway slot, anti-sidesway rod set are set in anti-sidesway slot.
As the preferred embodiment of the present invention, the damping block bottom is fixed with thrust ball bearing, and thrust ball bearing includes upper
Circle and lower circle, are provided with thrust ball, one end of the separate thrust ball of upper circle is fixed with damping block between Shang Quan and lower circle.
As the preferred embodiment of the present invention, the high-strength spring is made of 51CrMoV4 alloys, antiskid bar and anti-side
Bar is moved to be made of 35CrMo alloys.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, retainer plate is arranged with outside outer ring of the present invention, several high-strength springs is connected between retainer plate and outer ring, work as knife
When rostral face is impacted by hardness, 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 damages.Antiskid mechanism can avoid retainer plate from existing
Sliding is generated relative to outer ring by during axial force, ensures its job stability.Damping block, damping block are provided with below outer ring
Several high-strength springs are connected between the bottom of outer ring, when cutter head is by axial impact, between damping block and outer ring
High-strength spring can reduce the hardness 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
When side is impacted sidesway is generated relative to damping block.
2nd, one end of anti-drift spring is fixed in the antiskid slot of outer ring, and antiskid bar is pushed into retainer plate by anti-drift spring
Antiskid slot avoids retainer plate from generating sliding relative to outer ring, ensures connective stability.
3rd, anti-sidesway bar is inserted into anti-sidesway slot, and damping block can be avoided to generate sidesway relative to outer ring, ensures the operation is stable.
4th, damping block bottom is fixed with thrust ball bearing, and thrust ball bearing is contacted with drill main body, can reduce bearing with boring
Friction between head main body, avoids drill main body or cutter head from being damaged.
5th, high-strength spring is made of 51CrMoV4 alloys, ensures that spring has enough support forces；Antiskid bar and anti-side
It moves bar to be made of 35CrMo alloys, ensures that antiskid bar and anti-sidesway bar have enough strength and stiffness.
Description of the drawings
Fig. 1 is the structure diagram 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 to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is 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
Including outer ring 1 and inner ring, retainer is provided between outer ring 1 and inner ring for a kind of inserted tooth hob drill bit fluid bearing
2, several rolling elements 3 are provided in retainer 2, and rolling element 3 contacts respectively with outer ring 1 and inner ring；It is arranged with outside the outer ring 1 solid
Surely 4 are enclosed, several high-strength springs are connected between retainer plate 4 and outer ring 1, are connected between the end of outer ring 1 and the end of retainer plate 4
It is connected to several 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 several anti-lateral movement mechanisms 7 between damping block 6 and retainer plate 4.
Retainer plate 4 is arranged with outside outer ring 1 of the present invention, several high-strength springs are connected between retainer plate 4 and outer ring 1, when
When cutter head side is impacted by hardness, the high-strength spring between bearing retainer plate 4 and outer ring 1 can make cutter head obtain certain delay
Punching reduces the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head damages.Antiskid mechanism 5 can avoid fixing
Circle 4 generates sliding when by axial force relative to outer ring 1, ensures its job stability.The lower section of outer ring 4 is provided with damping block
6, be connected with several high-strength springs between damping block 6 and the bottom of outer ring 1, when cutter head is by axial impact, damping block 6 with
High-strength spring between outer ring 1 can reduce the hardness impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism
7 are avoided that when cutter head side is impacted relative to the generation sidesway of damping block 6.
Embodiment two
Including outer ring 1 and inner ring, retainer is provided between outer ring 1 and inner ring for a kind of inserted tooth hob drill bit fluid bearing
2, several rolling elements 3 are provided in retainer 2, and rolling element 3 contacts respectively with outer ring 1 and inner ring；It is arranged with outside the outer ring 1 solid
Surely 4 are enclosed, several high-strength springs are connected between retainer plate 4 and outer ring 1, are connected between the end of outer ring 1 and the end of retainer plate 4
It is connected to several 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 several anti-lateral movement mechanisms 7 between damping block 6 and retainer plate 4.
Retainer plate 4 is arranged with outside outer ring 1 of the present invention, several high-strength springs are connected between retainer plate 4 and outer ring 1, when
When cutter head side is impacted by hardness, the high-strength spring between bearing retainer plate 4 and outer ring 1 can make cutter head obtain certain delay
Punching reduces the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head damages.Antiskid mechanism 5 can avoid fixing
Circle 4 generates sliding when by axial force relative to outer ring 1, ensures its job stability.The lower section of outer ring 4 is provided with damping block
6, be connected with several high-strength springs between damping block 6 and the bottom of outer ring 1, when cutter head is by axial impact, damping block 6 with
High-strength spring between outer ring 1 can reduce the hardness impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism
7 are avoided that when cutter head side is impacted relative to the generation sidesway of damping block 6.
The end set of the retainer plate 4 has retainer plate antiskid slot, and the end set of outer ring 1 has outer ring antiskid slot,
Antiskid mechanism 5 includes antiskid bar 51 and anti-drift spring 52, and outer ring antiskid slot is fixed in one end of anti-drift spring 52
Interior, one end of the other end and antiskid bar 51 of anti-drift spring 52 is fixed, and the other end of antiskid bar 51 is sheathed on retainer plate 4
Antiskid slot in.One end of anti-drift spring 52 is fixed in the antiskid slot of outer ring, and anti-drift spring 52 is by antiskid bar 51
Retainer plate antiskid slot is pushed into, retainer plate 4 is avoided to generate sliding relative to outer ring 1, ensures connective stability.
Embodiment three
Including outer ring 1 and inner ring, retainer is provided between outer ring 1 and inner ring for a kind of inserted tooth hob drill bit fluid bearing
2, several rolling elements 3 are provided in retainer 2, and rolling element 3 contacts respectively with outer ring 1 and inner ring；It is arranged with outside the outer ring 1 solid
Surely 4 are enclosed, several high-strength springs are connected between retainer plate 4 and outer ring 1, are connected between the end of outer ring 1 and the end of retainer plate 4
It is connected to several 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 several anti-lateral movement mechanisms 7 between damping block 6 and retainer plate 4.
Retainer plate 4 is arranged with outside outer ring 1 of the present invention, several high-strength springs are connected between retainer plate 4 and outer ring 1, when
When cutter head side is impacted by hardness, the high-strength spring between bearing retainer plate 4 and outer ring 1 can make cutter head obtain certain delay
Punching reduces the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head damages.Antiskid mechanism 5 can avoid fixing
Circle 4 generates sliding when by axial force relative to outer ring 1, ensures its job stability.The lower section of outer ring 4 is provided with damping block
6, be connected with several high-strength springs between damping block 6 and the bottom of outer ring 1, when cutter head is by axial impact, damping block 6 with
High-strength spring between outer ring 1 can reduce the hardness impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism
7 are avoided that when cutter head side is impacted relative to the generation sidesway of damping block 6.
The end set of the retainer plate 4 has retainer plate antiskid slot, and the end set of outer ring 1 has outer ring antiskid slot,
Antiskid mechanism 5 includes antiskid bar 51 and anti-drift spring 52, and outer ring antiskid slot is fixed in one end of anti-drift spring 52
Interior, one end of the other end and antiskid bar 51 of anti-drift spring 52 is fixed, and the other end of antiskid bar 51 is sheathed on retainer plate 4
Antiskid slot in.One end of anti-drift spring 52 is fixed in the antiskid slot of outer ring, and anti-drift spring 52 is by antiskid bar 51
Retainer plate antiskid slot is pushed into, retainer plate 4 is avoided to generate sliding relative to outer ring 1, ensures 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 sets the anti-sidesway slot for being parallel to 4 central shaft of retainer plate, prevents
Sidesway bar 71 is sheathed in anti-sidesway slot.Anti- sidesway bar 71 is inserted into anti-sidesway slot, and damping block 6 can be avoided to be produced relative to outer ring 1
Raw sidesway, ensures the operation is stable.
Example IV
Including outer ring 1 and inner ring, retainer is provided between outer ring 1 and inner ring for a kind of inserted tooth hob drill bit fluid bearing
2, several rolling elements 3 are provided in retainer 2, and rolling element 3 contacts respectively with outer ring 1 and inner ring；It is arranged with outside the outer ring 1 solid
Surely 4 are enclosed, several high-strength springs are connected between retainer plate 4 and outer ring 1, are connected between the end of outer ring 1 and the end of retainer plate 4
It is connected to several 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 several anti-lateral movement mechanisms 7 between damping block 6 and retainer plate 4.
Retainer plate 4 is arranged with outside outer ring 1 of the present invention, several high-strength springs are connected between retainer plate 4 and outer ring 1, when
When cutter head side is impacted by hardness, the high-strength spring between bearing retainer plate 4 and outer ring 1 can make cutter head obtain certain delay
Punching reduces the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head damages.Antiskid mechanism 5 can avoid fixing
Circle 4 generates sliding when by axial force relative to outer ring 1, ensures its job stability.The lower section of outer ring 4 is provided with damping block
6, be connected with several high-strength springs between damping block 6 and the bottom of outer ring 1, when cutter head is by axial impact, damping block 6 with
High-strength spring between outer ring 1 can reduce the hardness impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism
7 are avoided that when cutter head side is impacted relative to the generation sidesway of damping block 6.
The end set of the retainer plate 4 has retainer plate antiskid slot, and the end set of outer ring 1 has outer ring antiskid slot,
Antiskid mechanism 5 includes antiskid bar 51 and anti-drift spring 52, and outer ring antiskid slot is fixed in one end of anti-drift spring 52
Interior, one end of the other end and antiskid bar 51 of anti-drift spring 52 is fixed, and the other end of antiskid bar 51 is sheathed on retainer plate 4
Antiskid slot in.One end of anti-drift spring 52 is fixed in the antiskid slot of outer ring, and anti-drift spring 52 is by antiskid bar 51
Retainer plate antiskid slot is pushed into, retainer plate 4 is avoided to generate sliding relative to outer ring 1, ensures 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 sets the anti-sidesway slot for being parallel to 4 central shaft of retainer plate, prevents
Sidesway bar 71 is sheathed in anti-sidesway slot.Anti- sidesway bar 71 is inserted into anti-sidesway slot, and damping block 6 can be avoided to be produced relative to outer ring 1
Raw sidesway, ensures the operation is stable.
6 bottom of 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, one end and the damping block 6 of the separate thrust ball 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, avoid drill main body or
Person's cutter head is damaged.
Embodiment five
Including outer ring 1 and inner ring, retainer is provided between outer ring 1 and inner ring for a kind of inserted tooth hob drill bit fluid bearing
2, several rolling elements 3 are provided in retainer 2, and rolling element 3 contacts respectively with outer ring 1 and inner ring；It is arranged with outside the outer ring 1 solid
Surely 4 are enclosed, several high-strength springs are connected between retainer plate 4 and outer ring 1, are connected between the end of outer ring 1 and the end of retainer plate 4
It is connected to several 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 several anti-lateral movement mechanisms 7 between damping block 6 and retainer plate 4.
Retainer plate 4 is arranged with outside outer ring 1 of the present invention, several high-strength springs are connected between retainer plate 4 and outer ring 1, when
When cutter head side is impacted by hardness, the high-strength spring between bearing retainer plate 4 and outer ring 1 can make cutter head obtain certain delay
Punching reduces the maximum stress value that cutter head side is subject to, so as to reduce the probability that cutter head damages.Antiskid mechanism 5 can avoid fixing
Circle 4 generates sliding when by axial force relative to outer ring 1, ensures its job stability.The lower section of outer ring 4 is provided with damping block
6, be connected with several high-strength springs between damping block 6 and the bottom of outer ring 1, when cutter head is by axial impact, damping block 6 with
High-strength spring between outer ring 1 can reduce the hardness impact that cutter head end face is subject to, and prevent cutter head end face from damaging.Anti- lateral movement mechanism
7 are avoided that when cutter head side is impacted relative to the generation sidesway of damping block 6.
The end set of the retainer plate 4 has retainer plate antiskid slot, and the end set of outer ring 1 has outer ring antiskid slot,
Antiskid mechanism 5 includes antiskid bar 51 and anti-drift spring 52, and outer ring antiskid slot is fixed in one end of anti-drift spring 52
Interior, one end of the other end and antiskid bar 51 of anti-drift spring 52 is fixed, and the other end of antiskid bar 51 is sheathed on retainer plate 4
Antiskid slot in.One end of anti-drift spring 52 is fixed in the antiskid slot of outer ring, and anti-drift spring 52 is by antiskid bar 51
Retainer plate antiskid slot is pushed into, retainer plate 4 is avoided to generate sliding relative to outer ring 1, ensures 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 sets the anti-sidesway slot for being parallel to 4 central shaft of retainer plate, prevents
Sidesway bar 71 is sheathed in anti-sidesway slot.Anti- sidesway bar 71 is inserted into anti-sidesway slot, and damping block 6 can be avoided to be produced relative to outer ring 1
Raw sidesway, ensures the operation is stable.
6 bottom of 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, one end and the damping block 6 of the separate thrust ball 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, avoid drill main body or
Person's cutter head is damaged.
The high-strength spring is made of 51CrMoV4 alloys, and antiskid bar 51 and anti-sidesway bar 71 are by 35CrMo alloy systems
Into.High-strength spring is made of 51CrMoV4 alloys, ensures that spring has enough support forces；Antiskid bar 51 and anti-sidesway bar 71
It is made of 35CrMo alloys, ensures 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) is provided with holding between inner ring
Frame (2), retainer (2) is interior to be provided with several rolling elements (3), and rolling element (3) contacts respectively with outer ring (1) and inner ring；Its feature
It is, is arranged with retainer plate (4) outside the outer ring (1), several high-strength springs are connected between retainer plate (4) and outer ring (1),
Several 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 several high-strength springs, damping block (6) and retainer plate between damping block (6) and the bottom of outer ring (1)
(4) several anti-lateral movement mechanisms (7) are provided between.
2. a kind of inserted tooth hob drill bit fluid bearing according to claim 1, which is characterized in that the retainer plate (4)
End set has retainer plate antiskid slot, and the end set of outer ring (1) has outer ring antiskid slot, 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 slot of outer ring, antiskid bullet
The other end of spring (52) and one end of antiskid bar (51) are fixed, and the other end of antiskid bar (51) is sheathed on retainer plate (4)
In antiskid slot.
A kind of 3. inserted tooth hob drill bit fluid bearing according to claim 2, which is characterized in that the anti-lateral movement mechanism
(7) including anti-sidesway bar (71), anti-sidesway bar (71) is fixed on the end of damping block (6), anti-sidesway bar (71) and retainer plate (4)
Central axis direction it is parallel, retainer plate (4) bottom, which is set, is parallel to the anti-sidesway slot of retainer plate (4) central shaft, anti-sidesway bar
(71) it is sheathed in anti-sidesway slot.
A kind of 4. inserted tooth hob drill bit fluid bearing according to claim 1, which is characterized 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, thrust ball is provided between Shang Quan and lower circle,
One end of the separate 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 3, which is characterized in that the high-strength spring is
51CrMoV4 alloys are made, and antiskid bar (51) and anti-sidesway bar (71) are made 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 CN106545572A (en) | 2017-03-29 |
| CN106545572B true CN106545572B (en) | 2018-07-10 |
Family
ID=58396370
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106545572B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1309836A (en) * | 1970-09-15 | 1973-03-14 | Secr Defence | Bearing assembly for a shaft |
| FR2614375B1 (en) * | 1987-04-23 | 1992-07-31 | Mecanique Magnetique Sa | RADIAL AUXILIARY BEARING FOR MAGNETIC SUSPENSION |
| DE102004042316B4 (en) * | 2004-09-01 | 2008-11-20 | Siemens Ag | Spindle bearing device |
| DE102012005931B4 (en) * | 2012-03-26 | 2014-08-21 | Thyssenkrupp Presta Aktiengesellschaft | Base load for a KGT arrangement |
| CN102927129B (en) * | 2012-11-14 | 2015-05-27 | 东方电气集团东方电机有限公司 | Spring bundle bearing bidirectional eccentric thrust bearing |
| DE112014004703T5 (en) * | 2013-11-14 | 2016-06-30 | Borgwarner Inc. | bearing arrangement |
-
2017
- 2017-01-11 CN CN201710021322.8A patent/CN106545572B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106545572A (en) | 2017-03-29 |
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Granted publication date: 20180710 |