CN202451068U - Mast of rotary drilling rig and rotary drilling rig with same - Google Patents
Mast of rotary drilling rig and rotary drilling rig with same Download PDFInfo
- Publication number
- CN202451068U CN202451068U CN 201220054371 CN201220054371U CN202451068U CN 202451068 U CN202451068 U CN 202451068U CN 201220054371 CN201220054371 CN 201220054371 CN 201220054371 U CN201220054371 U CN 201220054371U CN 202451068 U CN202451068 U CN 202451068U
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- China
- Prior art keywords
- rotary drilling
- mast
- guide rail
- drilling rig
- welded
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- Expired - Lifetime
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Abstract
The utility model provides a mast of a rotary drilling rig and the rotary drilling rig with the same. The mast comprises a mast body and guide rails, wherein the mast includes side plates, a back shroud and a front panel. The side plates are welded on the back shroud oppositely, one ends of the side plates far from the back shroud are welded on the guide rails, and two ends of the front panel are welded between the guide rails respectively. According to the mast, the end portions of the side plates and the front panel are welded with the guide rails, therefore the problem of proneness to crack of welded joints between the mast body and the guide rails of the large and medium rotary drilling rigs is solved, fatigue life of the welded joints is prolonged, and service life of the mast of the rotary drilling rig is extended.
Description
Technical field
The utility model relates to engineering machinery field, is specifically related to a kind of rotary drilling rig mast and has the rotary drilling rig of this rotary drilling rig mast.
Background technology
Be accompanied by China's rapid economy development, rotary drilling rig is high with its efficiency of construction, and environment pollution is little etc., and advantage obtains large-scale promotion at various engineering construction fields.Mast is as the important structure part on the rotary drilling rig, and its safety, reliability directly have influence on the performance of rig.Mast mainly contains the guide rail of mast body and both sides and forms.
See also Fig. 1, at present, middle-size and small-size rotary drilling rig mainly adopts is that front panel 10 direct bendings with mast body go out guide rail 11, then this guide rail 11 and front panel 10 and side plate 12 is welded together.This structure is because weld seam is less, and the concentrated lower grade of weld stress, so fatigue life is higher, and reliable in structure.See also Fig. 2; And big-and-middle-sized rig considers that mast needs bigger bending resistance and torsional property; Mast body adopts thick plates to form usually, because slab is difficult for bending, and square steel pipe and the left and right sides plate 22 of mast body and being welded of front panel 20 of guide rail 21 employing splits this moment.This structure is because there are the gap in guide rail 21 and 22 of side plates, promptly between guide rail 21 and the side plate 22 for face contacts, and weld seam only can be welded on guide rail 21 and side plate 22 contacted ends and can not entire contact surface be welded.Therefore, weld stress concentrates grade higher, and this moment, rig bore bigger dynamic loading again, so the weld fatigue life-span is lower, the pernicious fault of weld cracking often occurred.
The utility model content
In order to overcome the above-mentioned defective and the deficiency of prior art; The utility model provides a kind of rotary drilling rig mast; Comprise mast body and guide rail, said mast body comprises side plate, back shroud and front panel, and said side plate relatively is welded on the said back shroud; Said side plate is welded on the said guide rail away from an end of said back shroud, and the two ends of said front panel are welded in respectively between the said guide rail.
Preferably; The cross section of said guide rail is a rectangle; It comprises two long sidewalls and two short sidewalls that are connected with said long sidewall; Said side plate is welded on the long sidewall of said guide rail away from an end of said back shroud, and the two ends of said front panel are welded in respectively on the short sidewall of said guide rail.
Preferably, the cross section of said guide rail is a square, and said side plate is welded on first right-angle side of said guide rail away from an end of said back shroud, and the two ends of said front panel are welded in respectively on second right-angle side that is connected with said first right-angle side.
Preferably, between said side plate and the said guide rail, and adopt the both sides welding between said front panel and the said guide rail.
The utility model also provides a kind of rotary drilling rig that is provided with above-mentioned rotary drilling rig mast.
The side plate of the rotary drilling rig mast of the utility model and the end of front panel and guide rail welding; Can solve weld seam problem easy to crack between mast body and the guide rail of big-and-middle-sized rotary drilling rig; And the technology that adopts both sides to weld; Make the stress of commissure concentrate grade to reduce, improved the fatigue life of weld seam, thereby prolonged the application life of rotary drilling rig mast.
Description of drawings
Shown in Figure 1 is the structural representation of existing middle-size and small-size rig mast.
Shown in Figure 2 is the structural representation of existing big-and-middle-sized rig mast.
Shown in Figure 3 is the structural representation of the rotary drilling rig mast of the utility model preferred embodiment.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 3, the utility model preferred embodiment provides a kind of rotary drilling rig mast, and it is applied in the rotary drilling rig.
This rotary drilling rig mast comprises mast body and guide rail 6.This mast body comprises side plate 51, back shroud 52 and front panel 53.The quantity of said side plate 51 is two, and it relatively is welded on this back shroud 52.Said side plate 51 is welded on the said guide rail 6 away from an end of this back shroud 52.The two ends of this front panel 53 are welded in respectively between the said guide rail 6.
The quantity of said guide rail 6 is two, and each guide rail 6 is a square steel pipe, and the cross section of this guide rail 6 can be square or rectangular.The cross section of the guide rail 6 of the utility model preferred embodiment is preferably rectangle.Each guide rail 6 comprises two long sidewalls 61 and two short sidewalls 62 that are connected with said long sidewall 61.Said side plate 51 is welded on the long sidewall 61 of said guide rail 6 away from an end of this back shroud 52.The two ends of this front panel 53 are welded in respectively on the short sidewall 62 of said guide rail 6.
If when the cross section of this guide rail 6 was square, said side plate 51 was welded on first right-angle side of said guide rail 6 away from an end of this back shroud 52, the two ends of this front panel 53 are welded in respectively on second right-angle side that is connected with said first right-angle side.
In order to reduce the fatigue life that stress is concentrated, improved weld seam, between said side plate 51 and the said guide rail 6, and adopt the both sides welding between this front panel 53 and the said guide rail 6.
The side plate 51 of the rotary drilling rig mast of the utility model and the end of front panel 53 and guide rail 6 welding; Can solve weld seam problem easy to crack between mast body and the guide rail of big-and-middle-sized rotary drilling rig; And the technology that adopts both sides to weld; Make the stress of commissure concentrate grade to reduce, improved the fatigue life of weld seam, thereby prolonged the application life of rotary drilling rig mast.
More than be merely the preferred embodiment of the utility model, or not all within the spirit and principle of the utility model in order to restriction the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. rotary drilling rig mast; Comprise mast body and guide rail (6); Said mast body comprises side plate (51), back shroud (52) and front panel (53), it is characterized in that, said side plate (51) relatively is welded on the said back shroud (52); Said side plate (51) is welded on the said guide rail (6) away from an end of said back shroud (52), and the two ends of said front panel (53) are welded in respectively between the said guide rail (6).
2. rotary drilling rig mast according to claim 1; It is characterized in that; The cross section of said guide rail (6) is a rectangle; It comprises two long sidewalls (61) and two the short sidewalls (62) that are connected with said long sidewall (61), and said side plate (51) is welded on the long sidewall (61) of said guide rail (6) away from an end of said back shroud (52), and the two ends of said front panel (53) are welded in respectively on the short sidewall (62) of said guide rail (6).
3. rotary drilling rig mast according to claim 1; It is characterized in that; The cross section of said guide rail (6) is a square; Said side plate (51) is welded on first right-angle side of said guide rail (6) away from an end of said back shroud (52), and the two ends of said front panel (53) are welded in respectively on second right-angle side that is connected with said first right-angle side.
4. according to each described rotary drilling rig mast among the claim 1-3, it is characterized in that, between said side plate (51) and the said guide rail (6), and adopt the both sides welding between said front panel (53) and the said guide rail (6).
5. a rotary drilling rig is characterized in that, is provided with each described rotary drilling rig mast among the claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220054371 CN202451068U (en) | 2012-02-17 | 2012-02-17 | Mast of rotary drilling rig and rotary drilling rig with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220054371 CN202451068U (en) | 2012-02-17 | 2012-02-17 | Mast of rotary drilling rig and rotary drilling rig with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451068U true CN202451068U (en) | 2012-09-26 |
Family
ID=46866938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220054371 Expired - Lifetime CN202451068U (en) | 2012-02-17 | 2012-02-17 | Mast of rotary drilling rig and rotary drilling rig with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451068U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134088A (en) * | 2015-08-04 | 2015-12-09 | 中联重科股份有限公司 | Mast, manufacturing method thereof and rotary drilling rig |
| CN110017106A (en) * | 2019-04-17 | 2019-07-16 | 中联重科股份有限公司 | Mast, rotary drilling rig, partition plate for mast and mast manufacturing method |
-
2012
- 2012-02-17 CN CN 201220054371 patent/CN202451068U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134088A (en) * | 2015-08-04 | 2015-12-09 | 中联重科股份有限公司 | Mast, manufacturing method thereof and rotary drilling rig |
| CN110017106A (en) * | 2019-04-17 | 2019-07-16 | 中联重科股份有限公司 | Mast, rotary drilling rig, partition plate for mast and mast manufacturing method |
| CN110017106B (en) * | 2019-04-17 | 2020-12-01 | 中联重科股份有限公司 | Mast, rotary drilling rig, partition plate for mast and mast manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |