CN102654032A - Side tooth gauge-protection reamer with skidding thrust bearing - Google Patents
Side tooth gauge-protection reamer with skidding thrust bearing Download PDFInfo
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- CN102654032A CN102654032A CN201110051789XA CN201110051789A CN102654032A CN 102654032 A CN102654032 A CN 102654032A CN 201110051789X A CN201110051789X A CN 201110051789XA CN 201110051789 A CN201110051789 A CN 201110051789A CN 102654032 A CN102654032 A CN 102654032A
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- gear wheel
- reamer
- steel ball
- thrust
- thrust bearing
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Abstract
The invention belongs to a geological drilling tool, and in particular relates to a side tooth gauge-protection reamer with a skidding thrust bearing. The side tooth gauge-protection reamer mainly comprises a reamer main body and a cone assembly consisting of a cone base and a cone. The cone base and the reamer main body are fixedly connected to form a whole body; a roller runway groove and a locking steel ball runway groove are arranged inside the cone; a locking steel ball is arranged in the locking steel ball runway groove; and the cone is sleeved on the cone base, and is connected with the cone base in a friction manner through a roller in the roller runway groove. The side tooth gauge-protection reamer is characterized in that the skidding thrust bearing is arranged at the head part of a stepped shaft end of the cone base; the skidding thrust bearing mainly comprises a floatation cushion and thrust steel balls; a plurality of thrust steel ball holes are formed on the floatation cushion; and the thrust steel balls are arranged in the thrust steel bal holes. The side tooth gauge-protection reamer provided by the invention has the beneficial effects as follows: the floatation cushion and the thrust steel balls are additionally arranged between the cone base and the cone; and the skidding thrust bearing is formed by matching the floatation cushion with the thrust steel balls, so that an axial bearing capability of the cone base is strong; the friction coefficient is low; and the service life of the reamer is greatly improved.
Description
Technical field
The invention belongs to the geology boring means, relate in particular to a kind of heel teeth that has the skid thrust bearing and protect the footpath reamer.
Background technology
Along with the development of fluid media (medium) line transportation cause, creep into and the counterboring operation in the conveyance conduit hole on river crossing, lake, highway, railway even mountain range are progressively increasing, and the use of passing through reamer is frequent all the more.The primary structure of reamer cutting unit is gear wheel and bit leg part, and the sealing effectiveness of gear wheel hole and bit leg axle institute formation bearing directly influences application life of reamer.A kind of reamer of prior art, its bit leg palm leans against the hole wall of nearly institute reaming.Because the ream operation of reamer is generally level or near the operation form of level; A large amount of silts and landwaste are deposited on the bottom, duct, and be all very serious to the grinding and the erosion of the palm back of the body, when the palm back of the body may wear to certain degree; With the sealing device that destroys bearing, bearing seal was lost efficacy.After the seal failure, impurity such as mud cutting carring get into the bearing seal chamber, and bearing is with heavy wear and cisco unity malfunction possibly produce the wheel accident sometimes.The technician has improved the sealing of bearing greatly through changing the structure of reamer at present, for example removes the bit leg palm back of the body; The gear wheel assembly substitutes the palm back of the body with the gear wheel seat, does not have the palm back of the body and shirttail, just avoids the harm that landwaste and silt caused of hole wall bottom; Indirect protection the sealing system of gear wheel assembly bearing, but owing to exist sliding friction for a long time between gear wheel and the gear wheel seat, frictional force is bigger; Under the situation that gear wheel runs up, the gear wheel seat very easily weares and teares bad, causes the gear wheel seat in gear wheel, to rock for a long time and breaks away from gear wheel; Therefore, adopt a kind of new form, reduce the friction between gear wheel seat and the gear wheel; Prolong the application life of sealing device, and then be very important the application life of prolongation reamer.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology; And provide a kind of through reducing the friction between gear wheel and the gear wheel seat; With the application life of prolongation gear wheel assembly, and then prolong reamer a kind of heel teeth guarantor footpath reamer that has the skid thrust bearing in application life.
The present invention is for realizing above-mentioned purpose; Adopt following technical scheme: a kind of heel teeth that has a skid thrust bearing is protected the footpath reamer, mainly by the reamer body with comprise that the gear wheel assembly of gear wheel seat and gear wheel constitutes, said gear wheel seat and reamer body be affixed to become integral body; Said gear wheel inside is provided with roller runway groove and locking steel ball runway groove; Be provided with the locking steel ball in the said locking steel ball runway groove, said gear wheel is set on the gear wheel seat, and is connected with the friction of gear wheel seat through the roller that is flush-mounted in the roller runway groove; It is characterized in that: the ladder axle head stem of said gear wheel seat is provided with the skid thrust bearing; Said skid thrust bearing mainly comprises float pad and thrust steel ball, and said unsteady pad is provided with several thrust steel ball holes, and said thrust steel ball places the thrust steel ball hole.
Said reamer body mainly by two ends be provided with tool joint thread body mandrel, ring flat-plate, mainboard, preceding guide strip, rear deflector, radially water pipe, inclination water pipe constitute; Guide strip, ring flat-plate, mainboard, rear deflector are fixed on the body mandrel after going to successively before said; Evenly be provided with the gear wheel seat insert hole that is no less than three on the said mainboard on the circumference; The body mandrel was also radially run through at the guide strip rear before said radially water pipe placed; Said inclination water pipe places between the gear wheel assembly of mainboard front side and radially runs through the body mandrel, and the axis of said gear wheel seat axis and reamer body mandrel is parallel to each other.
Insert hydrophthalmia or do not have the water blocking of centre bore in said radially water pipe and the inclination water pipe.
Stud with carbide alloy gauge teeth and carbide cutting tooth on the gear wheel of said gear wheel assembly.
Constitute bearing bore between said gear wheel seat and the gear wheel, its joint portion is provided with sealing ring.
Beneficial effect: through between gear wheel seat and gear wheel, setting up float pad and thrust steel ball, the two cooperatively interacts and constitutes the skid thrust bearing, makes the axial carrying capacity of gear wheel seat strong, and friction factor is low, has improved the application life of reamer greatly.Adopt interchangeable gear wheel assembly, after the gear wheel assembly lost efficacy owing to reasons such as wearing and tearing, reusable reamer body was only used gear wheel assembly new product instead and can be continued to use; The gear wheel assembly that adopts, its gear wheel is divided into several grades of diameter grades, on the individuality of same specification reamer body, uses the gear wheel assembly of different-diameter grade respectively, can accomplish other ream operation of different-diameter level.
Description of drawings
Fig. 1 is the structure chart of gear wheel assembly of the present invention;
Fig. 2 is an overall structure of the present invention;
Fig. 3 is an end view of the present invention;
Fig. 4 is main body structure figure of the present invention;
Fig. 5 is the wherein sectional drawing of one group of gear wheel assembly and part body of the present invention;
Fig. 6 is the structure chart of hydrophthalmia among the present invention;
Fig. 7 is float among the present invention pad and thrust steel ball.
Among the figure: 11, body mandrel, 110, tool joint thread, 12, preceding guide strip, 13, ring flat-plate, 14, mainboard, 140, gear wheel seat insert hole; 15, rear deflector, 16, water pipe radially, 17, the inclination water pipe, 21, gear wheel, 211, gauge teeth, 212, cutting teeth; 213, locking steel ball runway groove, 214, roller runway groove, 22, the gear wheel seat, 23, the locking steel ball, 24, roller, 25, bearing sealed ring; 26, plug pin, 27, the pad that floats, 27-1, thrust steel ball hole, 28, the thrust steel ball, 222, the plug pin hole; 31, hydrophthalmia, 32, the hydrophthalmia back-up ring, 32-1, circlip groove, 33 sealing rings, 33-1, seal groove.
The specific embodiment
Specify the specific embodiment of the present invention below in conjunction with accompanying drawing and preferred embodiment.As shown in the figure; A kind of heel teeth that has the skid thrust bearing is protected the footpath reamer; Comprise reamer body and the gear wheel assembly that constitutes by gear wheel 21, gear wheel seat 22, said reamer body mainly by two ends be provided with tool joint thread 110 body mandrel 11, ring flat-plate 13, mainboard 14, preceding guide strip 12, rear deflector 15, radially water pipe 16, inclination water pipe 17 constitute, said before guide strip, ring flat-plate, mainboard, rear deflector after going to, be fixed in successively on the body mandrel; The body mandrel is a central axis; Its two ends are provided with tool joint thread, can be arranged to male thread or box thread as required, jointed rod when being used for operation.Evenly distribute on the circumference on the said mainboard and be no less than three gear wheel seat insert hole 140; The body mandrel was also radially run through at the guide strip rear before said radially water pipe placed; Said inclination water pipe places between the gear wheel assembly of mainboard front side and radially runs through the body mandrel, and said gear wheel seat becomes integral body through gear wheel seat insert hole and reamer body are affixed.Stud with carbide alloy gauge teeth 211 and carbide cutting tooth 212 on the gear wheel 21 of said gear wheel assembly, the gear wheel axis is parallel with the reamer body axis, so the heel teeth of gear wheel is the maximum outside diameter of whole reamer.The gear wheel heel teeth has determined counter bore diameter at the maximum outside diameter of gear wheel.After the gear wheel assembly lost efficacy owing to reasons such as wearing and tearing, can the gear wheel seat be broken away from the reamer body with methods such as ARC CUTTING after, weld gear wheel assembly new product again, continue to use, the reamer body is reusable.
Cutting teeth is the main cutting element of reamer, and gauge teeth is that counter bore diameter is provided safeguard, and plays the assisted machining effect.Said gear wheel inside is provided with roller runway groove 214, locking steel ball runway groove 213, and said gear wheel seat is provided with plug pin hole 222, and dress plug pin 26 in the said plug pin hole is provided with locking steel ball 23 in the said locking steel ball runway groove, and plug pin is used for locking steel ball.The locking steel ball is a gear wheel and the gear wheel seat is located, and the gear wheel seat is packed into behind the wheel seat hole, welds with arc welding again.Said gear wheel is set on the gear wheel seat, and is connected with the friction of gear wheel seat through the roller 24 that is flush-mounted in the roller runway groove, constitutes bearing bore between said gear wheel seat and the gear wheel, and its joint portion is provided with bearing sealed ring 25.Bearing sealed ring is that the bearing of gear wheel and gear wheel seat provides the annular seal space that lubricant grease exists.The ladder axle head stem of said gear wheel seat is provided with the skid thrust bearing, and said skid thrust bearing mainly comprises float pad 27 and thrust steel ball 28, and said unsteady pad is provided with several thrust steel ball holes 27-1, and said thrust steel ball places the thrust steel ball hole.
Insert hydrophthalmia 31 or do not have the water blocking of centre bore in said radially water pipe and the inclination water pipe.Hydrophthalmia is that mud provides path, discharges the operation hole in order to clean gear wheel and cutting carring.According to the waterpower needs, can in the part water pipe, install water blocking, adjustment waterpower direction makes waterpower in ream operation, bring into play its due effect.Said radially water pipe and inclination water pipe top are provided with hydrophthalmia back-up ring 32, and said circlip groove 32-1 below is provided with annular seal groove 33-1, is equipped with sealing ring 33 in the seal groove, and ring set is on hydrophthalmia or water blocking cylindrical.Preceding guide strip 12 constitutes by several, and pilot hole is advanced in the Shen when creeping into, and both play the guiding role, and can stablize gear wheel work again.Guide strip 12 and water pipe 16 radially before ring flat-plate 13 is firm simultaneously.Rear deflector 15 constitutes by several equally, aims at when reamer is poured into to lead, simultaneously firm mainboard 14 and inclination water pipe 17.Sealing ring 33 is contained in the preset cannelure of all kinds of water pipes, and it prevents that at pipe inner wall and hydrophthalmia or water blocking outer rim formation static seal mud from leaking betwixt.Back-up ring 32 is contained in the circlip groove at water pipe top, is used for fixing hydrophthalmia 31 or water blocking.Hydrophthalmia is that mud provides path, discharges the operation hole in order to clean gear wheel and cutting carring.According to the waterpower needs, can in the part water pipe, install water blocking, adjustment waterpower direction makes waterpower in ream operation, bring into play its due effect.
During the assembling of gear wheel assembly; Install roller 24 earlier, float pad 27, thrust steel ball 28, sealing ring 25, after gear wheel seat 22 is packed into, through the plug pin hole 222 locking steel ball 23 of packing into; Plug pin 26 pack into plug pin hole 222 and weld after, promptly locked locking steel ball 23 in its runway.After locking steel ball 23 is packed into, locked the axial location of gear wheel 21 with gear wheel seat 22.Sealing ring 25 provides sealing function for the bearing bore of gear wheel and gear wheel seat formation, and bearing bore and outside mud that it will be equipped with lubricant grease separate, and ensure bearing operate as normal under the condition of good lubrication.Gauge teeth has determined the counter bore diameter of reamer at the maximum gauge of gear wheel, changes gauge teeth and just can change counter bore diameter at the maximum gauge of gear wheel, in other words; Change the whole maximum gauge of gear wheel; Just counter bore diameter can be changed, therefore, the gear wheel of different-diameter grade can be made; Utilize same body, realize multistage reaming.The conveyance conduit hole be on than the basis of minor diameter prebored hole step by step counterboring form; After accomplishing the one-level counterboring; If gear wheel component failures or basic the inefficacy, removable lower tooth wheel assembly continues to use existing reamer body; Install and weld than other gear wheel of major diameter level, carry out the next stage ream operation.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. a heel teeth that has the skid thrust bearing is protected the footpath reamer; Mainly by the reamer body with comprise that the gear wheel assembly of gear wheel seat and gear wheel constitutes; Said gear wheel seat and reamer body are affixed to become whole, and said gear wheel inside is provided with roller runway groove and locking steel ball runway groove, is provided with the locking steel ball in the said locking steel ball runway groove; Said gear wheel is set on the gear wheel seat; And is connected through roller and the gear wheel seat friction that is flush-mounted in the roller runway groove, it is characterized in that: the ladder axle head stem of said gear wheel seat is provided with the skid thrust bearing, and said skid thrust bearing mainly comprises floating and fills up and the thrust steel ball; Said unsteady pad is provided with several thrust steel ball holes, and said thrust steel ball places the thrust steel ball hole.
2. the heel teeth that has the skid thrust bearing according to claim 1 is protected the footpath reamer; It is characterized in that: said reamer body mainly by two ends be provided with tool joint thread body mandrel, ring flat-plate, mainboard, preceding guide strip, rear deflector, radially water pipe, inclination water pipe constitute; Guide strip, ring flat-plate, mainboard, rear deflector are fixed on the body mandrel after going to successively before said; Evenly be provided with the gear wheel seat insert hole that is no less than three on the said mainboard on the circumference; The body mandrel was also radially run through at the guide strip rear before said radially water pipe placed; Said inclination water pipe places between the gear wheel assembly of mainboard front side and radially runs through the body mandrel, and the axis of said gear wheel seat axis and reamer body mandrel is parallel to each other.
3. the heel teeth that has a skid thrust bearing according to claim 2 is protected the footpath reamer, it is characterized in that: the interior insert hydrophthalmia of said radially water pipe and inclination water pipe or do not have the water blocking of centre bore.
4. the heel teeth that has the skid thrust bearing according to claim 2 is protected the footpath reamer, it is characterized in that: stud with carbide alloy gauge teeth and carbide cutting tooth on the gear wheel of said gear wheel assembly.
5. the heel teeth that has the skid thrust bearing according to claim 2 is protected the footpath reamer, and it is characterized in that: constitute bearing bore between said gear wheel seat and the gear wheel, its joint portion is provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110051789XA CN102654032A (en) | 2011-03-04 | 2011-03-04 | Side tooth gauge-protection reamer with skidding thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110051789XA CN102654032A (en) | 2011-03-04 | 2011-03-04 | Side tooth gauge-protection reamer with skidding thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102654032A true CN102654032A (en) | 2012-09-05 |
Family
ID=46729749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110051789XA Pending CN102654032A (en) | 2011-03-04 | 2011-03-04 | Side tooth gauge-protection reamer with skidding thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102654032A (en) |
-
2011
- 2011-03-04 CN CN201110051789XA patent/CN102654032A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120905 |