CN204627434U - Mast lifting mechanism under a kind of rig - Google Patents
Mast lifting mechanism under a kind of rig Download PDFInfo
- Publication number
- CN204627434U CN204627434U CN201520324764.6U CN201520324764U CN204627434U CN 204627434 U CN204627434 U CN 204627434U CN 201520324764 U CN201520324764 U CN 201520324764U CN 204627434 U CN204627434 U CN 204627434U
- Authority
- CN
- China
- Prior art keywords
- mast
- oil cylinder
- rig
- lifting mechanism
- hydraulic circuit
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 24
- 238000005553 drilling Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses mast lifting mechanism under a kind of rig, comprise lower mast (1), middle mast (3), hinge (2) and tripod (4), an oil cylinder (5) is connected with between described lower mast (1) and described tripod (4), rodless cavity and the rod chamber of described oil cylinder (5) are connected with hydraulic circuit (8), described hydraulic circuit (8) is connected with electromagnetic valve (9), described hydraulic circuit (8) between described electromagnetic valve (9) and described oil cylinder (5) is in series with equalizing valve (6) and stop valve (7).The utility model be a kind of can safety, convenient and without the need to mast lifting mechanism under the rig of the bolt under auxiliary equipment dismounting between mast and middle mast.Its using method is reliably easy.Be applicable to the rig of various employing parallelogram added with triangle jib lubbing mechanism.
Description
Technical field
The utility model relates to a kind of rig, particularly relates to a kind ofly adopting mast lifting mechanism under the rig of parallelogram added with triangle jib lubbing mechanism.
Background technology
Rotary drilling rig limits because of transportation clearance, and travel position needs folding after the Bolt dismantling between lower mast and middle mast, again by lower mast and middle mast Bolt Connection before construction operation.Traditional mechanism fixes between tripod and lower mast with the pull bar of fixed length, pull bar length is through accurate Calculation, the status requirement of lower mast when folding and vertical mast state can be met, middle mast and lower mast could can only dock after vertical mast, and need during demounting bolt for operator provides the auxiliary equipment such as ladder or platform.Meanwhile, because pull bar length is fixed, rotary drilling rig must remove its bearing pin be connected with lower mast before construction operation, once misoperation, will damage the bearing of tripod or lower mast.In addition, as shown in Figure 3, during rotary drilling rig transport upper flat plate car, by the impact of the flat car gradient, in order to make machine front end not touch ground, jib lubbing mechanism must be utilized brill mast entirety to be elevated, so just make machine center raise, slightly do not note, just have the danger of overturning.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of can safety, convenient and without the need to mast lifting mechanism under the rig of the bolt under auxiliary equipment dismounting between mast and middle mast.
In order to solve the problems of the technologies described above, mast lifting mechanism under the rig that the utility model provides, comprise lower mast, middle mast, hinge and tripod, an oil cylinder is connected with between described lower mast and described tripod, rodless cavity and the rod chamber of described oil cylinder are connected with hydraulic circuit, described hydraulic circuit is connected with electromagnetic valve, the hydraulic circuit described between described electromagnetic valve and described oil cylinder is in series with equalizing valve and stop valve.
Described equalizing valve and described stop valve are arranged on the cylinder body of oil cylinder.
The two ends of described oil cylinder are all provided with oscillating bearing.
Mast lifting mechanism under the rig of employing technique scheme, after using oil cylinder lifting mechanism, middle mast can be realized when horizontal level, directly lower mast is lifted to horizontal level together with its fixture dock with middle mast, now locking cylinder gets final product safe, assembling-disassembling bolt and without the need to auxiliary equipment easily; In working order, oil cylinder is servo-actuated, and two ends bearing pin is without the need to dismounting.Compared with the rotary drilling rig using pull bar with tradition, greatly simplifie the handling steps of lower mast, improve operating efficiency.Meanwhile, also bore mast without the need to integral lifting during transport upper flat plate car, only lower mast need be lifted to level, until machine come to a complete stop appropriate after, again piston rod is recovered to travel position, avoids too much the produced potential safety hazard of machine gravity rising, drastically increase processing safety.Equalizing valve installed by oil cylinder, can under loading and unloading during the attachment bolt of mast and middle mast, and locked cylinder, makes upper mast and middle mast relative position fix; Complete machine, in transportation, pins oil cylinder, guarantees that lower mast position is relatively fixing.Oil cylinder, oscillating bearing is all installed in two ends, during rig work, can meet the job requirement at inclination angle, mast left and right.When rotary drilling rig is in running order, unclamp stop valve, oil cylinder can be made to be in quick condition, piston rod with mast anteversion and retroversion action adjustment extension elongation, can not affect rig work.
In sum, the utility model be a kind of can safety, convenient and without the need to mast lifting mechanism under the rig of the bolt under auxiliary equipment dismounting between mast and middle mast.Its using method is reliably easy.Be applicable to the rig of various employing parallelogram added with triangle jib lubbing mechanism.
Accompanying drawing explanation
Fig. 1 is oil cylinder installation site schematic diagram.
Fig. 2 is control system hydraulic schematic diagram.
Fig. 3 utilizes jib lubbing mechanism will bore mast integral lifting schematic diagram.
Fig. 4 is lower mast folded state schematic diagram of the present utility model.
Fig. 5 be under oil cylinder lifting of the present utility model mast to level schematic diagram.
Fig. 6 is that lower mast of the present utility model founds mast view.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
See Fig. 1 and Fig. 2, lower mast 1 is hinged on the lower end of middle mast 3 by hinge 2, tripod 4 is hinged on middle mast 3, an oil cylinder 5 is connected with between lower mast 1 and tripod 4, the two ends of oil cylinder 5 are all provided with oscillating bearing, the rodless cavity of oil cylinder 5 and rod chamber are connected with hydraulic circuit 8, hydraulic circuit 8 are connected with electromagnetic valve 9, the hydraulic circuit 8 between electromagnetic valve 9 and oil cylinder 5 are in series with equalizing valve 6 and stop valve 7.
Further, equalizing valve 6 and stop valve 7 are arranged on the cylinder body of oil cylinder 5.
See Fig. 1, Fig. 2, Fig. 4, Fig. 5 and Fig. 6, before construction operation, when hydraulic circuit 8 receives the signal connecting lower mast 1 and middle mast 3, electromagnetic valve 9 left end electromagnetic valve coil obtains electric, and the piston rod of oil cylinder 5 stretches out, and promotes lower mast 1 and rotates around hinge 2, after making itself and middle mast 3 be in same level position, hydraulic circuit 8 stops to oil cylinder 5 fuel feeding, and equalizing valve 6 pins oil cylinder 5, now carries out the operation that lower mast 1 and middle mast 3 install attachment bolt.
During construction operation, unclamp stop valve 7, now electromagnetic valve 9 is in meta, and oil cylinder 5 liang of chambeies are all connected with hydraulic oil container, and oil cylinder 5 is in quick condition, with action adjustment angle and length such as mast anteversion and retroversion, lateral tiltings, does not affect mast action.
After construction operation, when needing lower mast 1 to fold, first lock stop valve 7, after movable mast to horizontal level, remove lower attachment bolt between mast 1 and middle mast 3, the right-hand member electromagnetic valve coil of electromagnetic valve 9 obtain electric after, the piston rod retraction of oil cylinder 5, after lower mast 1 forwards vertical position to, namely transfer travel position to.
The utility model eliminates traditional pull bar, lower mast charge and discharge operations can be simplified, shorten rotary drilling rig transfer duty to by travel position and transferred to the activity duration of travel position by duty, increase work efficiency, meanwhile, the bolt connecting lower mast and middle mast can carry out dismounting in safer position, and without the need to auxiliary equipment, effective reduction operative employee labour intensity, increases safety factor.
Claims (3)
1. mast lifting mechanism under a rig, comprise lower mast (1), middle mast (3), hinge (2) and tripod (4), it is characterized in that: between described lower mast (1) and described tripod (4), be connected with an oil cylinder (5), rodless cavity and the rod chamber of described oil cylinder (5) are connected with hydraulic circuit (8), described hydraulic circuit (8) is connected with electromagnetic valve (9), described hydraulic circuit (8) between described electromagnetic valve (9) and described oil cylinder (5) is in series with equalizing valve (6) and stop valve (7).
2. mast lifting mechanism under rig according to claim 1, is characterized in that: described equalizing valve (6) and described stop valve (7) are arranged on the cylinder body of described oil cylinder (5).
3. mast lifting mechanism under rig according to claim 1 and 2, is characterized in that: the two ends of described oil cylinder (5) are all provided with oscillating bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520324764.6U CN204627434U (en) | 2015-05-20 | 2015-05-20 | Mast lifting mechanism under a kind of rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520324764.6U CN204627434U (en) | 2015-05-20 | 2015-05-20 | Mast lifting mechanism under a kind of rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204627434U true CN204627434U (en) | 2015-09-09 |
Family
ID=54046474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520324764.6U Expired - Fee Related CN204627434U (en) | 2015-05-20 | 2015-05-20 | Mast lifting mechanism under a kind of rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204627434U (en) |
-
2015
- 2015-05-20 CN CN201520324764.6U patent/CN204627434U/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: 20150909 |