CN202000897U - Side gauge reamer with single thrust steel balls - Google Patents
Side gauge reamer with single thrust steel balls Download PDFInfo
- Publication number
- CN202000897U CN202000897U CN2011200547918U CN201120054791U CN202000897U CN 202000897 U CN202000897 U CN 202000897U CN 2011200547918 U CN2011200547918 U CN 2011200547918U CN 201120054791 U CN201120054791 U CN 201120054791U CN 202000897 U CN202000897 U CN 202000897U
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- CN
- China
- Prior art keywords
- gear wheel
- steel ball
- reamer
- thrust steel
- wheel seat
- 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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Abstract
The utility model belongs to geologic drilling tools, and particularly relates to a side gauge reamer with single thrust steel balls, which mainly comprises a reamer body and cone components. The cone components include a cone seat and cones, the cone seat is fixedly connected with the reamer body integrally, a roller raceway groove and a steel ball locking raceway groove are arranged inside each of the cones, locking steel balls are arranged in the steel ball locking raceway groove, the cones are sleeved on the cone seat, and are in friction connection with the cone seat through rollers embedded in the roller raceway grooves. The side gauge reamer with the single thrust steel balls is characterized in that thrust steel ball blind holes are arranged at the top end of each of the cones or the cone seat, and the thrust steel balls are arranged in the thrust steel ball blind holes. The side gauge reamer with the single thrust steel balls has the advantages that sliding friction between the cone seat and the cones is replaced by rolling friction of the single thrust steel balls, and abrasion between the cone seat and the cones is reduced, and thereby service life of the reamer is prolonged.
Description
Technical field
The utility model belongs to the geology boring means, relates in particular to a kind of heel teeth that has monomer thrust steel ball and protects 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 bearing that axle forms 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, to destroy the sealing device of bearing, bearing seal was lost efficacy.After the seal failure, impurity such as mud cutting carring enter the bearing seal chamber, and bearing is with heavy wear and cisco unity malfunction may produce the wheel accident sometimes.The technician is by changing the structure of reamer at present; improved the sealing of bearing greatly; for example remove the bit leg palm back of the body; the gear wheel assembly substitutes the palm back of the body with the gear wheel seat; there are not the palm back of the body and shirttail; just avoid 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 between gear wheel and the gear wheel seat; frictional force is bigger, and under the situation that gear wheel runs up, the gear wheel seat very easily weares and teares bad; cause the gear wheel seat in gear wheel, to rock for a long time and break 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.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and provides a kind of by reducing the frictional force between gear wheel and the gear wheel seat, and then prolongs a kind of heel teeth that has monomer thrust steel ball in the life-span of reamer and protect the footpath reamer.
The utility model for achieving the above object, by the following technical solutions: a kind of heel teeth that has monomer thrust steel ball 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, described gear wheel seat and reamer body are affixed to become whole, described gear wheel inside is provided with roller runway groove and locking steel ball runway groove, be provided with the locking steel ball in the described locking steel ball runway groove, described gear wheel is set on the gear wheel seat, and be connected by roller and the gear wheel seat friction that is flush-mounted in the roller runway groove, it is characterized in that: described gear wheel or gear wheel seat top are provided with thrust steel ball blind hole, are provided with the thrust steel ball in the described thrust steel ball blind hole.
Described reamer body mainly is provided with the body mandrel of tool joint thread by two ends, ring flat-plate, mainboard, preceding guide strip, rear deflector, water pipe radially, the inclination water pipe constitutes, guide strip before described, ring flat-plate, mainboard, rear deflector is fixed on the body mandrel after going to successively, evenly be provided with the gear wheel seat insert hole that is no less than three on the described mainboard on the circumference, the body mandrel was also radially run through at the guide strip rear before described radially water pipe placed, described inclination water pipe places between the gear wheel assembly of mainboard front side and radially runs through the body mandrel, and the axis of described 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 described radially water pipe and the inclination water pipe.
Stud with carbide alloy gauge teeth and carbide cutting tooth on the gear wheel of described gear wheel assembly.
Constitute bearing bore between described gear wheel seat and the gear wheel, its joint portion is provided with sealing ring.
Beneficial effect: the sliding friction between gear wheel seat and the gear wheel is replaced by the rolling friction of single steel ball thrust, has reduced the wearing and tearing between gear wheel seat and the gear wheel, thereby prolonged the application life of reamer.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 finish other ream operation of different-diameter level.
Description of drawings
Fig. 1 is the structure chart of the utility model gear wheel assembly;
Fig. 2 is an overall structure of the present utility model;
Fig. 3 is an end view of the present utility model;
Fig. 4 is the utility model main body structure figure;
Fig. 5 is the wherein sectional drawing of one group of gear wheel assembly and part body of the utility model;
Fig. 6 is the structure chart of hydrophthalmia in the utility model.
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, locking steel ball, 24, roller, 25, bearing sealed ring, 26, plug pin, 27, thrust steel ball, 222, the plug pin hole, 31, hydrophthalmia, 32, hydrophthalmia back-up ring, 32-1, circlip groove, 33 sealing rings, 33-1, seal groove.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in the figure, a kind of heel teeth that has monomer thrust steel ball is protected the footpath reamer, comprise the reamer body and by gear wheel 21, the gear wheel assembly that gear wheel seat 22 constitutes, described reamer body mainly is provided with the body mandrel 11 of tool joint thread 110 by two ends, ring flat-plate 13, mainboard 14, preceding guide strip 12, rear deflector 15, radially water pipe 16, inclination water pipe 17 constitutes, guide strip before described, ring flat-plate, mainboard, rear deflector is fixed on the body mandrel after going to successively, 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 described 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 described radially water pipe placed, described inclination water pipe places between the gear wheel assembly of mainboard front side and radially runs through the body mandrel, and described gear wheel seat becomes integral body by 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 described 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, the gear wheel seat can 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.Described gear wheel inside is provided with roller runway groove 214, locking steel ball runway groove 213, and described gear wheel seat is provided with plug pin hole 222, and dress plug pin 26 in the described plug pin hole is provided with locking steel ball 23 in the described locking steel ball runway groove, and plug pin is used for locking steel ball.The locking steel ball is gear wheel and gear wheel seat location, and the gear wheel seat is packed into behind the wheel seat hole, welds with arc welding again.Described gear wheel is set on the gear wheel seat, and is connected with the friction of gear wheel seat by the roller 24 that is flush-mounted in the roller runway groove, constitutes bearing bore between described 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.Be provided with thrust steel ball blind hole 215 between described gear wheel and the gear wheel seat top, be provided with thrust steel ball 27 in the described thrust steel ball blind hole.Described thrust steel ball blind hole can be located on the gear wheel or on the gear wheel seat, also can be located at simultaneously on gear wheel and the gear wheel seat, and the slightly larger in diameter of thrust steel ball blind hole is in the diameter of thrust steel ball.The contact surface of gear wheel seat (being thrust bearing) top and gear wheel changes the rolling friction of single steel ball thrust into from sliding friction, thereby adapts to high rotational speed.Insert hydrophthalmia 31 or do not have the water blocking of centre bore in described radially water pipe and the inclination water pipe.Hydrophthalmia provides path for mud, 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, adjust the waterpower direction, make waterpower in ream operation, bring into play its due effect.Described radially water pipe and inclination water pipe top are provided with hydrophthalmia back-up ring 32, and described 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 default 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 provides path for mud, 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, adjust the waterpower direction, make waterpower in ream operation, bring into play its due effect.
During the assembling of gear wheel assembly, before the assembling of gear wheel assembly, earlier present thrust steel ball 27 is placed thrust steel ball blind hole, the roller runway groove 214 of again bearing roller 24 being packed into, install bearing sealed ring 25, after gear wheel seat 22 is packed into, by plug pin hole 222 pack into locking steel ball 23, 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, change gauge teeth and just can change counter bore diameter at the maximum gauge of gear wheel, in other words, change the maximum gauge of gear wheel integral body, 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 finishing the one-level counterboring, if gear wheel component failures or basic the inefficacy, removable lower tooth wheel assembly, continue 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 utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. a heel teeth that has monomer thrust steel ball 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, described gear wheel seat and reamer body are affixed to become whole, described gear wheel inside is provided with roller runway groove and locking steel ball runway groove, be provided with the locking steel ball in the described locking steel ball runway groove, described gear wheel is set on the gear wheel seat, and be connected by roller and the gear wheel seat friction that is flush-mounted in the roller runway groove, it is characterized in that: described gear wheel or gear wheel seat top are provided with thrust steel ball blind hole, are provided with the thrust steel ball in the described thrust steel ball blind hole.
2. the heel teeth that has monomer thrust steel ball according to claim 1 is protected the footpath reamer, it is characterized in that: described reamer body mainly is provided with the body mandrel of tool joint thread by two ends, ring flat-plate, mainboard, preceding guide strip, rear deflector, water pipe radially, the inclination water pipe constitutes, guide strip before described, ring flat-plate, mainboard, rear deflector is fixed on the body mandrel after going to successively, evenly be provided with the gear wheel seat insert hole that is no less than three on the described mainboard on the circumference, the body mandrel was also radially run through at the guide strip rear before described radially water pipe placed, described inclination water pipe places between the gear wheel assembly of mainboard front side and radially runs through the body mandrel, and the axis of described gear wheel seat axis and reamer body mandrel is parallel to each other.
3. want the 2 described heel teeths that have a monomer thrust steel ball to protect the footpath reamers according to right, it is characterized in that: insert hydrophthalmia or do not have the water blocking of centre bore in described radially water pipe and the inclination water pipe.
4. the heel teeth that has monomer thrust steel ball according to claim 3 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 described gear wheel assembly.
5. the heel teeth that has monomer thrust steel ball according to claim 3 is protected the footpath reamer, and it is characterized in that: constitute bearing bore between described 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 |
|---|---|---|---|
| CN2011200547918U CN202000897U (en) | 2011-03-04 | 2011-03-04 | Side gauge reamer with single thrust steel balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200547918U CN202000897U (en) | 2011-03-04 | 2011-03-04 | Side gauge reamer with single thrust steel balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202000897U true CN202000897U (en) | 2011-10-05 |
Family
ID=44703642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200547918U Expired - Fee Related CN202000897U (en) | 2011-03-04 | 2011-03-04 | Side gauge reamer with single thrust steel balls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202000897U (en) |
-
2011
- 2011-03-04 CN CN2011200547918U patent/CN202000897U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20170304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |