CN215720532U - Petroleum chain for petroleum drilling equipment - Google Patents
Petroleum chain for petroleum drilling equipment Download PDFInfo
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- CN215720532U CN215720532U CN202121373309.7U CN202121373309U CN215720532U CN 215720532 U CN215720532 U CN 215720532U CN 202121373309 U CN202121373309 U CN 202121373309U CN 215720532 U CN215720532 U CN 215720532U
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- chain
- oil
- plates
- inner chain
- pin shafts
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Abstract
The utility model discloses an oil chain for oil drilling equipment, which comprises an oil chain body, wherein the oil chain body is formed by combining at least two rows of unit chains arranged in parallel, and each unit chain is formed by connecting a plurality of inner chain units with the same structure in series in a kinematic pair mode and outer chain plates which are arranged between two adjacent inner chain units and play a role in connection; the oil chain body connects the unit chains in parallel through a plurality of pin shafts which penetrate through the outer chain plates and the inner chain units, two outer ends of the pin shafts extend to the outer side of the oil chain body, one side of each pin shaft, which is close to the outer end, is axially provided with a mounting hole, and two adjacent pin shafts are fixedly connected through a fixing piece which penetrates through the mounting holes; the inner chain unit mainly comprises two inner chain plates which are oppositely arranged and rollers which are transversely arranged in the two inner chain plates; the fixing piece comprises a cross rod transversely penetrating through mounting holes in two adjacent pin shafts, and a clamping rod and a bending rod which are respectively integrally arranged on the end faces of two outer sides of the cross rod.
Description
Technical Field
The utility model relates to the technical field of mechanical chains, in particular to a petroleum chain for petroleum drilling equipment.
Background
With the improvement of the automation level of the drilling platform in the oil drilling operation, wellhead oil tools (such as power drill pipe tongs, power casing tongs, iron roughneck and the like) with high automation degree are more and more widely applied. The petroleum chain is a commonly used component in petroleum drilling equipment, and the existing petroleum chain has a single structure and poor applicability, so that petroleum chains with different structures need to be designed according to different use requirements to improve the matching degree of the petroleum chain and the equipment. In addition, in the process of the chain in meshing transmission with the chain wheel, the driving wheel drives the chain to rotate at high speed and then drives the driven wheel to rotate, so that the power transmission is realized. The chain is not enough in structural strength, and can be gradually elongated under continuous stress in the long-term operation process, so that the phenomena of tooth climbing, tooth jumping and chain dropping of the chain occur; meanwhile, when the chain rotates, the chain contacts with the chain wheel for a long time, the chain link plate is easy to grind and wear, and the conditions of roller impact fracture or impact fracture are generated, so that safety accidents are caused.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a petroleum chain for petroleum drilling equipment, which has a reasonable structure and good service performance, aiming at the defects in the prior art.
The utility model aims to solve the technical scheme that the petroleum chain for petroleum drilling equipment comprises a petroleum chain body, wherein the petroleum chain body is formed by combining at least two rows of unit chains arranged in parallel, and each unit chain is formed by connecting a plurality of inner chain units with the same structure in series in a kinematic pair mode and outer chain plates which are arranged between two adjacent inner chain units and play a role in connection; the oil chain body connects the unit chains in parallel through a plurality of pin shafts which penetrate through the outer chain plates and the inner chain units, two outer ends of the pin shafts extend to the outer side of the oil chain body, one side of each pin shaft, which is close to the outer end, is axially provided with a mounting hole, and two adjacent pin shafts are fixedly connected through a fixing piece which penetrates through the mounting holes; the inner chain unit mainly comprises two inner chain plates which are oppositely arranged and rollers which are transversely arranged in the two inner chain plates.
Furthermore, the fixing part comprises a cross rod transversely penetrating through the mounting holes in the two adjacent pin shafts and a clamping rod integrally arranged on the end face of one side of the cross rod, a bending rod bent downwards is arranged on one side, away from the clamping rod, of the cross rod, and the inner side of the top of the clamping rod is tightly clamped on the outer edge of the top of the pin shaft.
Furthermore, the lengths of the inner chain plates and the outer chain plates are the same, the heights of the inner chain plates are larger than those of the outer chain plates, and the side edges of the tops and the bottoms of the inner chain plates and the outer chain plates are provided with inwards concave arc-shaped grooves.
Furthermore, a layer of nano ceramic coating is sprayed on the outer surfaces of the roller, the inner chain plate and the outer chain plate.
Furthermore, the oil chain body is formed by combining 2-5 groups of unit chains arranged in parallel, the width of an inner section between inner chain plates oppositely arranged in each group of unit chains is 15.75-37.85 mm, the pitch between two adjacent rollers is 25.4-63.5 mm, and the diameter of the pin shaft is 7.92-19.85 mm.
The utility model has the beneficial technical effects that: the utility model improves the service performance of the chain by combining and combining a plurality of groups of unit chains in parallel, two adjacent pin shafts are fixed by the fixing piece, the load capacity of the chain is improved, and the outer side of the main part of the chain is also coated with the nano ceramic coating, so that the chain is wear-resistant and corrosion-resistant, the service performance of the chain is further improved, and the actual service life of the chain is prolonged while the chain is ensured to be universal with the existing chain.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the structure of FIG. 1;
fig. 3 is a schematic structural diagram of another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention is further described with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inside", "outside", "lateral", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-3, the petroleum chain for petroleum drilling equipment of the present invention comprises a petroleum chain body 1, wherein the petroleum chain body 1 is formed by combining at least two rows of unit chains 2 arranged in parallel, and each unit chain is formed by connecting a plurality of inner chain units with the same structure and outer chain plates 3 which are arranged between two adjacent inner chain units and have a connecting function in series in a kinematic pair manner; the petroleum chain body 1 is characterized in that the unit chain 2 is connected in parallel through a plurality of pin shafts 4 which penetrate through the outer chain plate 3 and the inner chain unit, two outer ends of the pin shafts 4 extend to the outer side of the petroleum chain body 1, one side of each pin shaft 4, which is close to the outer end, is axially provided with a mounting hole, and two adjacent pin shafts 4 are fixedly connected through a fixing piece 5 which penetrates through the mounting hole; the inner chain unit mainly comprises two inner chain plates 6 which are oppositely arranged and rollers 7 which are transversely arranged in the two inner chain plates 6.
Referring to fig. 1-3, the fixing member 5 includes a cross bar 8 transversely penetrating through the mounting holes of the two adjacent pin shafts 4 and a clamping rod 9 integrally disposed on an end surface of one side of the cross bar 8, a bending rod 10 bent downward is disposed on a side of the cross bar 8 away from the clamping rod 9, and an inner side of a top of the clamping rod 9 is tightly clamped on an outer edge of the top of the pin shaft 4. The length of the inner chain plate 6 is the same as that of the outer chain plate 3, the height of the inner chain plate 6 is larger than that of the outer chain plate 3, and the side edges of the top and the bottom of the inner chain plate 6 and the outer chain plate 3 are respectively provided with an inwardly sunken arc-shaped groove 12.
And the outer surfaces of the roller 7, the inner chain plate 6 and the outer chain plate 3 are all sprayed with a layer of nano ceramic coating. The petroleum chain body 1 is formed by combining 2-5 groups of unit chains 2 arranged in parallel, the width P of an inner section between inner chain plates arranged oppositely in each group of unit chains 2 is 15.75-37.85 mm, the pitch b between two adjacent rollers is 25.4-63.5 mm, and the diameter d of the pin shaft is 7.92-19.85 mm.
The utility model improves the service performance of the chain by combining and combining a plurality of groups of unit chains in parallel, two adjacent pin shafts are fixed by the fixing piece, the load capacity of the chain is improved, and the outer side of the main part of the chain is also coated with the nano ceramic coating, so that the chain is wear-resistant and corrosion-resistant, the service performance of the chain is further improved, and the actual service life of the chain is prolonged while the chain is ensured to be universal with the existing chain.
The specific embodiments described herein are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. The utility model provides an oil chain that oil drilling equipment used, includes the oil chain body, its characterized in that: the petroleum chain body is formed by combining at least two rows of unit chains arranged in parallel, and each unit chain is formed by connecting a plurality of inner chain units with the same structure in series in a kinematic pair mode and outer chain plates which are arranged between two adjacent inner chain units and play a role in connection; the oil chain body connects the unit chains in parallel through a plurality of pin shafts which penetrate through the outer chain plates and the inner chain units, two outer ends of the pin shafts extend to the outer side of the oil chain body, one side of each pin shaft, which is close to the outer end, is axially provided with a mounting hole, and two adjacent pin shafts are fixedly connected through a fixing piece which penetrates through the mounting holes; the inner chain unit mainly comprises two inner chain plates which are oppositely arranged and rollers which are transversely arranged in the two inner chain plates.
2. The oil chain for oil drilling equipment according to claim 1, wherein: the fixing piece comprises a cross rod transversely penetrating through mounting holes in two adjacent pin shafts and a clamping rod integrally arranged on the end face of one side of the cross rod, a bending rod bent downwards is arranged on one side, away from the clamping rod, of the cross rod, and the inner side of the top of the clamping rod is tightly clamped on the outer edge of the top of the pin shaft.
3. An oil chain for an oil drilling apparatus according to claim 1 or 2, wherein: the length of the inner chain plate is the same as that of the outer chain plate, the height of the inner chain plate is larger than that of the outer chain plate, and the top and bottom side edges of the inner chain plate and the outer chain plate are respectively provided with an inward sunken arc-shaped groove.
4. An oil chain for an oil drilling apparatus according to claim 3, wherein: and the outer surfaces of the roller, the inner chain plate and the outer chain plate are all sprayed with a layer of nano ceramic coating.
5. An oil chain for an oil drilling apparatus according to claim 3, wherein: the oil chain body is formed by combining 2-5 groups of unit chains arranged in parallel, the width of an inner section between inner chain plates oppositely arranged in each group of unit chains is 15.75-37.85 mm, the pitch between two adjacent rollers is 25.4-63.5 mm, and the diameter of the pin shaft is 7.92-19.85 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121373309.7U CN215720532U (en) | 2021-06-21 | 2021-06-21 | Petroleum chain for petroleum drilling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121373309.7U CN215720532U (en) | 2021-06-21 | 2021-06-21 | Petroleum chain for petroleum drilling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215720532U true CN215720532U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121373309.7U Active CN215720532U (en) | 2021-06-21 | 2021-06-21 | Petroleum chain for petroleum drilling equipment |
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| Country | Link |
|---|---|
| CN (1) | CN215720532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023138700A1 (en) * | 2022-06-06 | 2023-07-27 | 安徽黄山中友链条制造有限公司 | High-temperature-resistant bearing grid transmission chain |
-
2021
- 2021-06-21 CN CN202121373309.7U patent/CN215720532U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023138700A1 (en) * | 2022-06-06 | 2023-07-27 | 安徽黄山中友链条制造有限公司 | High-temperature-resistant bearing grid transmission chain |
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