CN204703767U - The compensation mining cone bit of bearing lubrication - Google Patents
The compensation mining cone bit of bearing lubrication Download PDFInfo
- Publication number
- CN204703767U CN204703767U CN201520401436.1U CN201520401436U CN204703767U CN 204703767 U CN204703767 U CN 204703767U CN 201520401436 U CN201520401436 U CN 201520401436U CN 204703767 U CN204703767 U CN 204703767U
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- storing tube
- oil storing
- compensation
- cone bit
- bearing
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Abstract
The utility model discloses the compensation mining cone bit of a kind of bearing lubrication, comprise gear wheel, tooth pawl and threaded joint, the roller that described gear wheel is arranged by inner chamber and ball are movably arranged on the spindle nose of tooth pawl, described tooth pawl tail end is fixedly connected with threaded joint, its special character is: be provided with oil storing tube in described threaded joint, the input of described oil storing tube is connected with the petroleum pipeline port sealing on tooth pawl, and the output of described oil storing tube is provided with detachable-type sealed assembly.The designed compensation mining cone bit of bearing lubrication, its structure is simple, easy realization, convenient transformation, and have can the feature such as supplemental lubrication grease amount is large, can make bearing bore seal failure or occur in time to bearing bore supplemental lubrication fat when lubricating grease is revealed, when the too much pressure of bearing bore lubricating grease is excessive, extraction lubricating grease, guarantees that bearing arrangement is in good lubrication all the time; By adopting said structure, effectively improving the whole service life of mining drill bit, ensureing to produce and carry out smoothly.
Description
Technical field
The utility model relates to mine mechanism field, refers to the compensation mining cone bit of a kind of bearing lubrication particularly.
Background technology
Tricone bit is oil, the widely used drilling tool in mine, wherein blasthole tricone rock bit is the main tool of surface mine perforation, the while that its operating principle being the revolution of drill bit entirety, gear wheel is around the tooth pawl spindle nose rotation coordinated with it, thus fractured rock; The application life of blasthole tricone rock bit is one of most important performance indications of equipment, and the Comprehensive service life of drill bit determined jointly primarily of the bearing arrangement life-span of drill bit and the cutting teeth life-span of drill bit.
Improve the whole service life of mining drill bit, it is a difficult problem of always making great efforts to seek to solve of the same trade, and the key of mining drill bit bulk life time is whether bearing arrangement effectively works, by finding the failure detection of bit bearing, the bearing adhesive wear that lack of lubrication causes is common phenomenon of the failure.The bearing arrangement of drill bit is made up of the large runway of tooth pawl spindle nose, the large runway of gear wheel, roller ball three, and on the one hand, cone bit bearing bears very large the pressure of the drill at work, and it runs well to need good lubricant effect guarantee; On the other hand, be filled with rock debris, dust or mud around during bit operation, what existing bearing arrangement lubrication supplementary device adopted is Open architecture, and lime-ash very easily enters the wearing and tearing of rolling bearing arrangement accelerated material, stuck roller, causes rolling bearing arrangement to lose efficacy.Mining cone bit in use in addition, and because the reasons such as overheated, poor sealing can lose partial lubrication fat, it is also the major reason of lack of lubrication that lubricating grease poor fluidity can not supplement in time to rubbing surface.
Existing part drill bit design adds oil storage bag at present, and be communicated to bearing cavity, a rubber pressure lid is equipped with in oil storage bag outer end, be applicable to transmit drilling liquid pressure, equalizer bearing chamber inside and outside differential pressure, and it is supplementary to bearing bore to promote lubricating grease.But this kind of drill bit design is applicable to the oil deep drilling well of drilling fluid, inapplicable do not have the shallow drilling well in the mine of drilling fluid, therefore, needs a kind of mining cone bit that can overcome the severe industrial and mineral environment of the shallow drilling well in mine, that ensure bearing lubrication effect.
Summary of the invention
The purpose of this utility model is exactly to overcome the defect that existing mining cone bit exists, and provides a kind of and can adjust bearing arrangement lubricants capacity in time, ensures lubricant effect, reduces lubrication oil and leak thus effectively improve the whole service life of mining drill bit, ensure the compensation mining cone bit of bearing lubrication produced and carry out smoothly.
For achieving the above object, the compensation mining cone bit of bearing lubrication designed by the utility model, comprise gear wheel, tooth pawl and threaded joint, the roller that described gear wheel is arranged by inner chamber and ball are movably arranged on the spindle nose of tooth pawl, described tooth pawl tail end is fixedly connected with threaded joint, its special character is: be provided with oil storing tube in described threaded joint, the input of described oil storing tube is connected with the petroleum pipeline port sealing on tooth pawl, and the output of described oil storing tube is provided with detachable-type sealed assembly.
Preferably, described detachable-type sealed assembly comprises the U-shaped rubber cap be arranged on its inwall interference fit in oil storing tube inner chamber, and described U-shaped rubber cap cap mouth is arranged in the input of oil storing tube upward.Described U-shaped rubber cap can slide in oil storing tube, carries out dynamic seal (packing) to oil storing tube.
Further, the input of described oil storing tube is provided with end cap, and described end cap is provided with air vent.Like this, the air pressure acted directly on outside U-shaped rubber cap can be reduced, avoid rock debris, dust or mud etc. to enter oil storing tube simultaneously.
Further, described U-shaped rubber cap wall thickness is 0.5 ~ 3mm, and described air vent diameter is 1 ~ 2mm.Like this, can, when ensureing oil storage environmental sealing, U-shaped rubber cap be slided in oil storing tube, adjustment lubricants capacity.
As another kind of preferred version, described detachable-type sealed assembly comprises the thin-walled rubber pipe be arranged in oil storing tube inner chamber, one end of described thin-walled rubber pipe is connected on the output of oil storing tube by rubber lip checkpost, the input that the other end of described thin-walled rubber pipe stretches out oil storing tube is connected with sealing device.Like this, the lubrication oil supplement ambient of sealing can be formed, automatically adjust lubricants capacity by the pressure change acting on thin-walled rubber pipe outer wall.
Further, described sealing device is rubber band, metal ring or Spring Card.Like this, phenomenon rock debris, dust or mud etc. can being avoided to enter lubrication oil and then cause lubricating system to break down.
The utility model has the advantage of: the compensation mining cone bit of designed bearing lubrication, its structure is simple, easy realization, convenient transformation, and have can the feature such as supplemental lubrication grease amount is large, can make bearing bore seal failure or occur in time to bearing bore supplemental lubrication fat when lubricating grease is revealed, when the too much pressure of bearing bore lubricating grease is excessive, extraction lubricating grease, guarantees that bearing arrangement is in good lubrication all the time; By adopting said structure, effectively improving the whole service life of mining drill bit, ensureing to produce and carry out smoothly.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the compensation mining cone bit of the utility model bearing lubrication.
Fig. 2 is the sectional structure schematic diagram of the compensation mining cone bit of another kind of bearing lubrication.
Wherein: gear wheel 1; Tooth pawl 2 (roller 2.1, ball 2.2); Bearing rubber seal 3; Threaded joint 4; Drill bit air channel 5; Sealing device 6; Thin-walled rubber pipe 7; Oil storing tube 8; Rubber lip limit 9; End cap 10; Air vent 11; U-shaped rubber cap 12.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment one:
The compensation mining cone bit of bearing lubrication shown in Fig. 1, comprise gear wheel 1, tooth pawl 2 and threaded joint 4, the roller 2.1 that gear wheel 1 is arranged by inner chamber and ball 2.2 are movably arranged on the spindle nose of tooth pawl 2, tooth pawl 2 tail end and threaded joint 4 are welded and fixed, oil storing tube 8 is provided with in threaded joint 4, the input of oil storing tube 8 is connected with the petroleum pipeline port sealing on tooth pawl 2, and the output of oil storing tube 8 is provided with detachable-type sealed assembly; Detachable-type sealed assembly comprises the U-shaped rubber cap 12 be arranged on its inwall interference fit in oil storing tube 8 inner chamber, and U-shaped rubber cap 12 wall thickness is 0.5 ~ 3mm, and its cap mouth is arranged on oil storing tube 8 end upward; In order to reduce the gas pressure acted on U-shaped rubber cap 12, be provided with end cap 10 in oil storing tube 8 upper end, there is an air vent 11 at its center, and aperture is 1 ~ 2mm, much smaller than blowing bits tuyere diameter, to reduce dynamic pressure.
When the present embodiment is installed, for ensureing the lubricant effect of bearing bore, eliminating the ventilation of bearing bore, and be provided with bearing rubber seal 3 between gear wheel 1 and tooth pawl 2, can prevent or slow down lubricating grease like this and reveal; Oil storing tube 8 in threaded joint 4 be inner wall smooth without firmly curved storage metal oil pipe, after oil storing tube 8 fills up lubricating grease, cap mouth puts into U-shaped rubber cap 12 upward.
During work, if bearing grease has leakage, the dynamic pressure of drill bit air channel near oil storing tube 8 upper end is applied on the external surface of U-shaped rubber cap 12, on the one hand U-shaped rubber cap 12 the brim of a hat is pressed to oil storing tube 8 inwall, guarantee sealing, on the one hand U-shaped rubber cap 12 is slided to bearing bore along oil storing tube 8 inwall, the lubricating grease in pipe is pushed bearing bore; U-shaped rubber cap 12 can turn round along oil storing tube 8 inwall, and maximum lubricating grease compensation rate is close to oil storing tube lubricating grease capacity;
Embodiment two:
The compensation mining cone bit of another kind of bearing lubrication as shown in Figure 2, its general structure is substantially identical with embodiment one, just wherein detachable-type sealed assembly comprises the thin-walled rubber pipe 7 be arranged in oil storing tube 8 inner chamber; one end of thin-walled rubber pipe 7 is connected to the output of oil storing tube 8 by rubber lip limit 9; rubber lip limit 9 external diameter is more than or equal to oil storing tube 8 external diameter, and thin-walled rubber pipe 7 length is slightly longer than oil storing tube 8 length; The other end of thin-walled rubber pipe 7 stretches out the input of oil storing tube 8 and sealing device 6 is connected, and sealing device 6 is rubber band, metal ring or Spring Card.
When the present embodiment is installed, use instrument is spear material flexible pipe such as, its external diameter is less than oil storing tube 8 internal diameter, is inserted by thin-walled rubber pipe 7 in spear material flexible pipe, and rubber lip limit 9 is exposed, oil storing tube 8 inwall and spear material flexible pipe outer wall are coated with and spread lubricating grease, thin-walled rubber pipe 7 is introduced oil storing tube 8 at the auxiliary lower of spear material flexible pipe, makes rubber lip limit 9 be stuck in the lower port of oil storing tube 8, form sealing, again spear material flexible pipe is withdrawn from, make thin-walled rubber pipe 7 stay in oil storing tube 8; Inject lubricating grease from the other end of thin-walled rubber pipe 7, fill the folding rubber band of rear thin-walled rubber pipe 7 end, metal ring or Spring Card and close; If lubricating grease has leakage in bearing arrangement, the dynamic pressure of drill bit air channel 5 near oil storing tube 8 upper end acts on thin-walled rubber pipe 7 external surface, and the lubricating grease in pipe is clamp-oned bearing bore.
Finally, it should be pointed out that above embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to above-described embodiment, can also have many distortion.Every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all should think and belong to protection domain of the present utility model.
Claims (6)
1. the compensation mining cone bit of bearing lubrication, comprise gear wheel (1), tooth pawl (2) and threaded joint (4), the roller (2.1) that described gear wheel (1) is arranged by inner chamber and ball (2.2) are movably arranged on the spindle nose of tooth pawl (2), described tooth pawl (2) tail end is fixedly connected with threaded joint (4), it is characterized in that: in described threaded joint (4), be provided with oil storing tube (8), the input of described oil storing tube (8) is connected with the petroleum pipeline port sealing on tooth pawl (2), the output of described oil storing tube (8) is provided with detachable-type sealed assembly.
2. the compensation mining cone bit of bearing lubrication according to claim 1, it is characterized in that: described detachable-type sealed assembly comprises the U-shaped rubber cap (12) be arranged on its inwall interference fit in oil storing tube (8) inner chamber, described U-shaped rubber cap (12) cap mouth is arranged in the input of oil storing tube (8) upward.
3. the compensation mining cone bit of bearing lubrication according to claim 2, it is characterized in that: the input of described oil storing tube (8) is provided with end cap (10), described end cap (10) is provided with air vent (11).
4. the compensation mining cone bit of bearing lubrication according to claim 3, is characterized in that: described U-shaped rubber cap (12) wall thickness is 0.5 ~ 3mm, and described air vent (11) diameter is 1 ~ 2mm.
5. the compensation mining cone bit of bearing lubrication according to claim 1, it is characterized in that: described detachable-type sealed assembly comprises the thin-walled rubber pipe (7) be arranged in oil storing tube (8) inner chamber, one end of described thin-walled rubber pipe (7) is connected to the output of oil storing tube (8) by rubber lip limit (9), and the input that the other end of described thin-walled rubber pipe (7) stretches out oil storing tube (8) is connected with sealing device (6).
6. the compensation mining cone bit of bearing lubrication according to claim 5, is characterized in that: described sealing device (6) is rubber band, metal ring or Spring Card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401436.1U CN204703767U (en) | 2015-06-11 | 2015-06-11 | The compensation mining cone bit of bearing lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520401436.1U CN204703767U (en) | 2015-06-11 | 2015-06-11 | The compensation mining cone bit of bearing lubrication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703767U true CN204703767U (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520401436.1U Expired - Fee Related CN204703767U (en) | 2015-06-11 | 2015-06-11 | The compensation mining cone bit of bearing lubrication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386985A (en) * | 2017-08-10 | 2017-11-24 | 安庆市凯立金刚石科技有限公司 | A kind of novel artificial diamond compact coring bit |
| CN110485930A (en) * | 2019-08-26 | 2019-11-22 | 四川宝石机械石油钻头有限责任公司 | PDC- gear wheel composite drill bit |
-
2015
- 2015-06-11 CN CN201520401436.1U patent/CN204703767U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386985A (en) * | 2017-08-10 | 2017-11-24 | 安庆市凯立金刚石科技有限公司 | A kind of novel artificial diamond compact coring bit |
| CN110485930A (en) * | 2019-08-26 | 2019-11-22 | 四川宝石机械石油钻头有限责任公司 | PDC- gear wheel composite drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170728 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20190611 |