CN203395090U - Triplex-row roller chain for petroleum drilling machine - Google Patents
Triplex-row roller chain for petroleum drilling machine Download PDFInfo
- Publication number
- CN203395090U CN203395090U CN201320195834.3U CN201320195834U CN203395090U CN 203395090 U CN203395090 U CN 203395090U CN 201320195834 U CN201320195834 U CN 201320195834U CN 203395090 U CN203395090 U CN 203395090U
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- Prior art keywords
- link
- links
- bearing pin
- roller
- sleeve
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- Expired - Fee Related
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Abstract
The utility model discloses a triplex-row roller chain for a petroleum drilling machine. The triplex-row roller chain comprises two rows of outer links which are arranged in parallel, wherein two rows of middle links which are arranged in parallel and parallel to the two rows of outer links are arranged between the two rows of outer links; inner links are arranged at the both sides of each middle link and the inner sides of the outer links; the outer links, the middle links and the inner links are all 8-shaped and connected together in a penetrating manner by pin shafts; a sleeve is arranged between the inner links and the pin shafts; a roller is sleeved to the outer surface of the sleeve; the pin shafts, the inner links and the outer links are arranged in a mutual staggered manner; a lock pin is arranged between every two pin shafts; the lock pins are arranged on the outer surfaces of the outer links; the pin shafts on the end part of the triplex-row roller chain for the petroleum drilling machine are connected with connection links, and the connection pin shafts are connected to the outer ends of the connection links in a penetrating manner. The product has the characteristics of being high in strength, high in precision, high in wear resistance and the like, as well as is high in tensile strength, long in service life, and widely used in the petroleum exploitation industry and other chain transmission equipment.
Description
Technical field
The utility model relates to a kind of chain, is specially a kind of three row's oil-well rig roller chains.
Background technique
A plurality of chain units that roller chain adopts at present have outer link, inner link, roller, bearing pin etc., roller sleeve is connected on the middle part of bearing pin, and inner link and outer link successively from inside to outside, each chain unit also has a sleeve, sleeve is arranged between roller and bearing pin, and inner link is socketed in sleeve two ends.Chinese patent discloses a kind of high-strength roller chain, and (notice of authorization number: CN 201391575Y), it comprises outer link, inner link, bearing pin, and pin sleeve has sleeve, overlaps and has roller on sleeve; Two spacing 9.50mm that inner link is asked; Two spacing 25.9mm that outer link is asked; Total sideshake of high-strength roller chain should be controlled at 0.20-0.40mm; Between roller and sleeve, be equipped with bearing.Chinese patent also discloses a kind of high-intensity roller chain (notice of authorization number: CN 201531560 U), it comprises chain link, the two ends of chain link are respectively equipped with outer link, the madial wall of outer link is respectively equipped with inner link, outer link and inner link ask and be plugged with bearing pin, and the two ends of bearing pin are cubic riveting; Inner link and outer link equal in length; The radian of the outer link between two bearing pins and the dual-side of inner link is 16 degree.But it is single that these two kinds of roller chains all only have, and the required power of oil-well rig is stronger, and easily in use fracture of single strand chain, causes oil-well rig to produce fault, easily causes security incident; In addition, the material of existing each component of oil-well rig roller chain is selected and manufacturing procedure is also unreasonable.
Model utility content
The utility model is to provide a kind of three row's oil-well rig roller chains, and it is mainly to solve the existing roller chain of prior art all to only have singlely, and the required power of oil-well rig is stronger, easily in use fracture of single strand chain, cause oil-well rig to produce therefore
Barrier, easily causes the technical problem of security incident etc.
The technical problem that the utility model solves realizes by the following technical solutions:
Three row's oil-well rig roller chains, comprise the outer link that two rows be arranged in parallel, between two exclusive chain links, be provided with the middle shot that two rows in parallel be arranged in parallel, the both sides of middle shot and the inner side of outer link are all provided with inner link, outer link, middle shot and inner link are " 8 " font and pass through together with bearing pin cross-under, between inner link and bearing pin, be provided with sleeve, the outer surface of sleeve is socketed with roller, bearing pin inner link and outer link are interwoven, between every two adjacent bearing pins, be provided with only lock pin, only lock pin is located at the outer surface of outer link; The bearing pin of oil-well rig roller chain end is connected with connecting link, and the outer end cross-under of connecting link has connection bearing pin.
The material of described outer link, middle shot, inner link, bearing pin, sleeve, roller, connecting link, connection bearing pin is that alloy is firm.Described outer link, middle shot, inner link, connecting link adopt essence to rush ball and squeeze carrier bar.Described bearing pin, sleeve, connection bearing pin adopt surperficial carbonitriding part.Described roller adopts low-carbon martensite roller.
Compared with prior art, the beneficial effects of the utility model are: this product has the features such as high strength, highi degree of accuracy, high wear resistance, and its tensile strength is high, long service life, are widely used on petroleum production industry and other chain transmission device.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model.
Fig. 2 is plan view of the present utility model.
Embodiment
In order to make of the present utility modelly to realize technological means, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As Fig. 1, shown in Fig. 2, three row's oil-well rig roller chains, comprise the outer link 1 that two rows be arranged in parallel, between two exclusive chain links 1, be provided with the middle shot 2 that two rows in parallel be arranged in parallel, the both sides of middle shot and the inner side of outer link are all provided with inner link 3, outer link, middle shot is " 8 " font and passes through together with bearing pin 4 cross-under with inner link, between inner link and bearing pin, be provided with sleeve 5, the outer surface of sleeve is socketed with roller 6, bearing pin 4 inner links and outer link are interwoven, between every two adjacent bearing pins, be provided with only lock pin 9, only lock pin is located at the outer surface of outer link, the bearing pin of oil-well rig roller chain end is connected with connecting link 7, and the outer end cross-under of connecting link has the bearing pin 8 of connection.
This chain part adopts high duty alloy Steel material, adopts advanced cold machining process and heat treatment process, and the punching of carrier bar essence and ball squeeze; Bearing pin and sleeve adopt carbonitriding, and roller adopts the heat treatment process of low-carbon martensite.Its conventional index and fatigue behaviour index meet API Spec 7F-2010 and SY/T 5595-2009 standard.Chain products has passed through every conventional index of national chain quality supervision inspection center and the detection of fatigue behaviour index.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.Claimed scope of the present utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. three arrange oil-well rig roller chains, comprise the outer link (1) that two rows be arranged in parallel, it is characterized in that, between two exclusive chain links (1), be provided with the middle shot (2) that two rows in parallel be arranged in parallel, the both sides of middle shot and the inner side of outer link are all provided with inner link (3), outer link, middle shot is " 8 " font and passes through together with bearing pin (4) cross-under with inner link, between inner link and bearing pin, be provided with sleeve (5), the outer surface of sleeve is socketed with roller (6), bearing pin (4) inner link and outer link are interwoven, between every two adjacent bearing pins, be provided with only lock pin (9), only lock pin is located at the outer surface of outer link, the bearing pin of oil-well rig roller chain end is connected with connecting link (7), and the outer end cross-under of connecting link has connection bearing pin (8).
2. three row's oil-well rig roller chains according to claim 1, is characterized in that: the material of described outer link (1), middle shot (2), inner link (3), bearing pin (4), sleeve (5), roller (6), connecting link (7), connection bearing pin (8) is that alloy is firm.
3. three row's oil-well rig roller chains according to claim 1 and 2, is characterized in that: described outer link (1), middle shot (2), inner link (3), connecting link (7) adopt essence to rush ball and squeeze carrier bar.
4. three row's oil-well rig roller chains according to claim 1 and 2, is characterized in that: described bearing pin (4), sleeve (5), connection bearing pin (8) adopt surperficial carbonitriding part.
5. three row's oil-well rig roller chains according to claim 1 and 2, is characterized in that: described roller (6) adopts low-carbon martensite roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320195834.3U CN203395090U (en) | 2013-04-18 | 2013-04-18 | Triplex-row roller chain for petroleum drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320195834.3U CN203395090U (en) | 2013-04-18 | 2013-04-18 | Triplex-row roller chain for petroleum drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395090U true CN203395090U (en) | 2014-01-15 |
Family
ID=49906625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320195834.3U Expired - Fee Related CN203395090U (en) | 2013-04-18 | 2013-04-18 | Triplex-row roller chain for petroleum drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395090U (en) |
-
2013
- 2013-04-18 CN CN201320195834.3U patent/CN203395090U/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: 20140115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |