CN207829818U - Rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site - Google Patents
Rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site Download PDFInfo
- Publication number
- CN207829818U CN207829818U CN201721844935.3U CN201721844935U CN207829818U CN 207829818 U CN207829818 U CN 207829818U CN 201721844935 U CN201721844935 U CN 201721844935U CN 207829818 U CN207829818 U CN 207829818U
- Authority
- CN
- China
- Prior art keywords
- bit
- bit leg
- ring
- rubber ring
- leg journel
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model is related to rock bit technical fields, more particularly to a kind of rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site, including gear wheel, bit leg and carbide ring, interference fit has carbide ring around the bit leg journel of the bit leg, the endoporus root of the gear wheel is equipped with seal groove, regular rubber ring is housed, the regular rubber ring coordinates with the carbide ring in the seal groove.A carbide ring is installed in bit leg journel root, and the outer round surface of carbide ring is allowed to be contacted with rubber ring internal diameter, and the hardness and wearability of the outer round surface of carbide ring are all higher than the basic surface of bit leg journel, can work long hours without easy damaged.
Description
Technical field
The utility model is related to rock bit technical fields more particularly to a kind of rock bit rubber ring to be connect with bit leg journel
The wear-resisting reinforced structure in contact portion position.
Background technology
As shown in Fig. 2, at present in rock bit in use, big mostly use gum filler sealing and mechanical seal, rubber
Packing seal is in direct contact with bit leg journel and gear wheel seal groove, friction is generated in gear wheel work, abrasion is very fast, seal failure
It can lead to entire rock bit premature failure.Analyze used rock bit when find, the very long drill bit of usage time,
There is wear trace in journal packing portion.By practicality, it is found that this polishing scratch is one of the reason of causing drill bit seal failure.
Utility model content
Purpose of the utility model is to overcome the shortcomings of the above technology, and to provide a kind of rock bit rubber ring and bit legs
The wear-resisting reinforced structure in journal contact position.
The utility model to achieve the above object, using following technical scheme：
A kind of rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site, it is characterised in that：Including gear wheel,
Bit leg and carbide ring, interference fit has a carbide ring around the bit leg journel of the bit leg, the gear wheel it is interior
Hole root is equipped with seal groove, regular rubber ring is housed in the seal groove, the regular rubber ring is matched with the carbide ring
It closes.
Preferably, the mating surface of the carbide ring and bit leg journel root is inclined-plane.
The utility model has the beneficial effects that:Compared with the existing technology, a carbide ring is installed in bit leg journel root,
The outer round surface of carbide ring is allowed to be contacted with rubber ring internal diameter, the hardness and wearability of the outer round surface of carbide ring are all high
In the basic surface of bit leg journel, can work long hours without easy damaged.
Carbide ring is installed with bit leg journel using interference, and the coefficient of thermal expansion of hard alloy is much smaller than bit leg journel material
The coefficient of thermal expansion of material, in this way when underground work is heated, carbide ring can with bit leg journel firmly in conjunction with and ensure close
Envelope.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the prior art.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment of the present utility model is described in detail in preferred embodiment.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indicates or imply and is signified
Device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this practicality
Novel limitation.
As shown in Figure 1, a kind of rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site, including gear wheel 4,
Bit leg and carbide ring 1, interference fit has carbide ring around the bit leg journel 3 of the bit leg, the gear wheel
Endoporus root is equipped with seal groove, and regular rubber ring, the regular rubber ring and the carbide ring are housed in the seal groove
Cooperation.The mating surface of the carbide ring and bit leg journel root is inclined-plane.
3 size of bit leg journel after finishing is measured, the internal diameter size of carbide ring 1 is determined according to interference volume；It measures
The internal diameter and outer diameter of regular rubber ring 2, the outer diameter for determining carbide ring of being taken measurements according to desired gap, fine grinding
The internal-and external diameter and small end face of carbide ring 1.
By 1 hot charging of carbide ring on bit leg journel 3, make the small end face of carbide ring 1 and the big axis of bit leg journel 3
Root end face fits closely, and after the cooling of carbide ring 1, carbide ring 1 is just firmly combined together with bit leg journel 3
.
A carbide ring is installed in bit leg journel root, and the outer round surface of carbide ring is allowed to be connect with rubber ring internal diameter
Touch, the hardness and wearability of the outer round surface of carbide ring are all higher than the basic surface of bit leg journel, can work long hours and
Not easy damaged.
Carbide ring is installed with bit leg journel using interference, and the coefficient of thermal expansion of hard alloy is much smaller than bit leg journel material
The coefficient of thermal expansion of material, in this way when underground work is heated, carbide ring can with bit leg journel firmly in conjunction with and ensure close
Envelope.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (2)
1. a kind of rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site, it is characterised in that：Including gear wheel, tooth
The palm and carbide ring, interference fit has carbide ring, the endoporus of the gear wheel around the bit leg journel of the bit leg
Root is equipped with seal groove, and regular rubber ring is housed in the seal groove, and the regular rubber ring coordinates with the carbide ring.
2. rock bit rubber ring according to claim 1 and the wear-resisting reinforced structure in bit leg journel contact site, feature
It is：The mating surface of the carbide ring and bit leg journel root is inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721844935.3U CN207829818U (en) | 2017-12-26 | 2017-12-26 | Rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721844935.3U CN207829818U (en) | 2017-12-26 | 2017-12-26 | Rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207829818U true CN207829818U (en) | 2018-09-07 |
Family
ID=63389439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721844935.3U Active CN207829818U (en) | 2017-12-26 | 2017-12-26 | Rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207829818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989553A (en) * | 2017-12-26 | 2018-05-04 | 天津立林钻头有限公司 | Rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site and its installation method |
-
2017
- 2017-12-26 CN CN201721844935.3U patent/CN207829818U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989553A (en) * | 2017-12-26 | 2018-05-04 | 天津立林钻头有限公司 | Rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site and its installation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207829818U (en) | Rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site | |
| CN204976429U (en) | Compact structure of utensil is examined to sheet metal component | |
| CN104196522B (en) | A kind of slurry pulsator dummy packing assembly | |
| CN205154090U (en) | Transfer oblique wear -resisting packing box | |
| CN203335062U (en) | Deep well high-temperature pulse generator of wireless inclinometer and wireless inclinometer | |
| CN107989553A (en) | Rock bit rubber ring and the wear-resisting reinforced structure in bit leg journel contact site and its installation method | |
| CN202166386U (en) | Proofreading block used for height detection of oil sleeve joint premium connection | |
| CN204805606U (en) | Steel lining fluoroplastics pottery ball valve | |
| CN204988050U (en) | Compound female thread ga(u)ge of modified nanocrystal | |
| CN201714301U (en) | Compound seal roller bit | |
| CN208059765U (en) | A kind of blast hole depth measurement device | |
| CN204187066U (en) | A kind of safety valve | |
| CN203239978U (en) | Integrated rigidity sealing ball valve | |
| CN203081457U (en) | Shield machine disc cutter convenient to replace | |
| CN204575078U (en) | A kind of construction project Multifunctional measuring tool | |
| CN208697194U (en) | A kind of elastic grinding wheel | |
| CN204371131U (en) | Modified hollow sucker rod centralizer | |
| CN202768920U (en) | Ball body assembly for wear-resisting semi-lined ceramic ball valve | |
| CN204941375U (en) | A kind of non magnetic drill collar with wear-resistant strip | |
| CN207974770U (en) | Cone bit metal rubber shaft bearing sealing ring and its rock bit | |
| CN204628619U (en) | Hard seal wear-resistant fixing ball valve | |
| CN203273265U (en) | Compression-resistant and wear-resistant PVC pipe | |
| CN202418687U (en) | Metallic hard seal ball valve | |
| CN201972618U (en) | Wear-resistant drill rod connector for oilfield drilling | |
| CN207673284U (en) | Rock bit pressure oil storage compensation structure and its rock bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |