CN202000894U - Side tooth diameter-keeping reamer with thrust steel balls - Google Patents
Side tooth diameter-keeping reamer with thrust steel balls Download PDFInfo
- Publication number
- CN202000894U CN202000894U CN2011200547960U CN201120054796U CN202000894U CN 202000894 U CN202000894 U CN 202000894U CN 2011200547960 U CN2011200547960 U CN 2011200547960U CN 201120054796 U CN201120054796 U CN 201120054796U CN 202000894 U CN202000894 U CN 202000894U
- Authority
- CN
- China
- Prior art keywords
- gear wheel
- steel ball
- reamer
- wheel seat
- tooth wheel
- 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 relates to a side tooth diameter-keeping reamer with thrust steel balls. The reamer mainly comprises a reamer body and a tooth wheel component which comprises a tooth wheel seat and a tooth wheel, wherein the tooth wheel seat is fixedly connected with the reamer body into a whole; grooves are formed at corresponding positions on the tooth wheel or the tooth wheel seat and are closed to form locking steel ball runway grooves; locking steel balls are arranged in the locking steel ball runway grooves; the tooth wheel is sleeved on the tooth wheel seat and is axially locked with the tooth wheel seat through the locking steel balls; roller runway grooves are formed in an inner hole of the tooth wheel; and rollers are arranged in the roller runway grooves and are in friction connection with the tooth wheel seat. The reamer is characterized in that: thrust steel ball runway grooves are formed at the junctions of the head end part of a large shaft and a small shaft of the tooth wheel seat; and the thrust steel balls are arranged in the thrust steel ball runway grooves. The utility model has the advantages that: the thrust steel balls are arranged on the tooth wheel seat, and the original sliding friction between the tooth wheel seat and the tooth wheel is changed into rolling friction, so that the axial carrying capacity of the tooth wheel seat is increased, and the service life of the reamer is greatly prolonged.
Description
Technical field
The utility model belongs to the geology boring means, relates in particular to a kind of heel teeth that has the thrust steel ball and protects the footpath reamer.
Background technology
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.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 for a long time between gear wheel and the gear wheel seat; especially the ground reaction force that bears on the end face of the macro-axis of gear wheel seat is bigger; in the prior art; the technician is by increasing wear-resistant gasket to solve both wearing and tearing between the end face of macro-axis and gear wheel endoporus; but because sliding friction still can produce bigger heat, the wearing and tearing of both contact surfaces are still very serious, 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 provide a kind of heel teeth that has the thrust steel ball to protect the footpath reamer, by the force of sliding friction between the macro-axis of gear wheel endoporus and gear wheel seat is changed into force of rolling friction, prolonging the application life of gear wheel assembly, and then reach and prolong reamer application life.
The utility model for achieving the above object, by the following technical solutions: a kind of heel teeth that has the 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, correspondence position is respectively equipped with groove on described gear wheel or the pinch roller seat, the closed formation locking of described lock groove steel ball runway groove, be equipped with the locking steel ball in the locking steel ball runway groove, described gear wheel is set on the gear wheel seat, and by locking steel ball and gear wheel seat axial locking, be provided with roller runway groove in the endoporus of gear wheel, be provided with roller in the described roller runway groove, described roller is connected with the friction of gear wheel seat, it is characterized in that: the big axle head stem of described gear wheel seat and little axle concourse are provided with thrust steel ball runway groove, are provided with the thrust steel ball in the described thrust steel ball runway groove.
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.
Beneficial effect: by the thrust steel ball is set, rolling friction is changed in the sliding friction between original gear wheel seat and gear wheel on the gear wheel seat, thereby increased the axial carrying capacity of gear wheel seat, friction factor is low, has improved the application life of reamer greatly.
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, the 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, 215, thrust steel ball runway, 22, the gear wheel seat, 220, little axle, 221, macro-axis, 222, plug pin hole 23, the locking steel ball, 24, roller, 25, bearing sealed ring, 26, plug pin, 27, the thrust steel ball, 28, groove, 29, endoporus, 31, hydrophthalmia, 32, the 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 the 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.Correspondence position is respectively equipped with groove 28 on described gear wheel or the pinch roller seat, the closed formation locking of described lock groove steel ball runway groove 213, be equipped with locking steel ball 23 in the locking steel ball runway groove, described gear wheel is set on the gear wheel seat, and by locking steel ball and gear wheel seat axial locking, be provided with roller runway groove 214 in the endoporus 29 of gear wheel, be provided with roller 24 in the described roller runway groove, described roller is connected with the friction of gear wheel seat, it is characterized in that: the macro-axis 221 end stems of described gear wheel seat and little axle 220 concourses are provided with thrust steel ball runway groove 215, are provided with thrust steel ball 27 in the described thrust steel ball runway groove.Described gear wheel seat is provided with plug pin hole 222, and dress plug pin 26 is used for the locking steel ball is fixed in the locking steel ball runway in the described plug pin hole.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.Constitute bearing bore between described gear wheel seat and the gear wheel, 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.
In gear wheel assembly when assembling, install roller 24, thrust steel ball 27, sealing ring 25 earlier, after gear wheel seat 22 is packed into, by 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, 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 (4)
1. a heel teeth that has the 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, correspondence position is respectively equipped with groove on described gear wheel or the pinch roller seat, the closed formation locking of described lock groove steel ball runway groove, be equipped with the locking steel ball in the locking steel ball runway groove, described gear wheel is set on the gear wheel seat, and by locking steel ball and gear wheel seat axial locking, be provided with roller runway groove in the endoporus of gear wheel, be provided with roller in the described roller runway groove, described roller is connected with the friction of gear wheel seat, it is characterized in that: the big axle head stem of described gear wheel seat and little axle concourse are provided with thrust steel ball runway groove, are provided with the thrust steel ball in the described thrust steel ball runway groove.
2. the heel teeth that has the 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. the heel teeth that has a thrust steel ball according to claim 2 is protected the footpath reamer, 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 the thrust steel ball 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 described gear wheel assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200547960U CN202000894U (en) | 2011-03-04 | 2011-03-04 | Side tooth diameter-keeping reamer with thrust steel balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200547960U CN202000894U (en) | 2011-03-04 | 2011-03-04 | Side tooth diameter-keeping reamer with thrust steel balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202000894U true CN202000894U (en) | 2011-10-05 |
Family
ID=44703639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200547960U Expired - Fee Related CN202000894U (en) | 2011-03-04 | 2011-03-04 | Side tooth diameter-keeping reamer with thrust steel balls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202000894U (en) |
-
2011
- 2011-03-04 CN CN2011200547960U patent/CN202000894U/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 | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN LILIN SCREW MACHINERY CO., LTD. Free format text: FORMER OWNER: TIANJIN LILIN BIT CO., LTD. Effective date: 20130524 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130524 Address after: 300352 Tianjin city Jinnan District gegu town three village Patentee after: Tianjin Lilin Screw Machinery Co., Ltd. Address before: 300352 Tianjin city Jinnan District gegu town three village Patentee before: Tianjin Lilin Bit Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20160304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |