CN108868601B - Rotary drilling rig with backward folded winch auxiliary mast - Google Patents
Rotary drilling rig with backward folded winch auxiliary mast Download PDFInfo
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- CN108868601B CN108868601B CN201811067340.0A CN201811067340A CN108868601B CN 108868601 B CN108868601 B CN 108868601B CN 201811067340 A CN201811067340 A CN 201811067340A CN 108868601 B CN108868601 B CN 108868601B
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- 238000005553 drilling Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 238000004804 winding Methods 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims description 16
- 230000009471 action Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/023—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting the mast being foldable or telescopically retractable
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a rotary drilling rig with a winch auxiliary mast folded backwards, which comprises a chassis, a vehicle body platform, a movable arm, an amplitude-variable oil cylinder, a mast oil cylinder, a supporting rod, a winch mechanism, a mast assembly, a power head and a drill rod, wherein the power head is arranged on the chassis; the hoisting mechanism comprises a winding drum, a steel wire rope, a fixed pulley block and a movable pulley block; the power head is arranged on the mast assembly, and the drill rod is arranged on the power head; the vehicle body platform is arranged on the chassis through a rotary support; one end of the movable arm is hinged with the vehicle body platform, and the other end of the movable arm is hinged with the mast assembly; one end of the amplitude variable oil cylinder is hinged with the vehicle body platform, and the other end of the amplitude variable oil cylinder is hinged with the movable arm; one end of the supporting rod is hinged with the vehicle body platform; the other end is hinged with one end of the mast oil cylinder; the other end of the mast oil cylinder is hinged with the mast assembly; the winding drum is arranged on the car body platform or the movable arm; the fixed pulley block is arranged on the movable arm; the movable pulley block is arranged on the mast assembly. The invention has high working stability, the mast can be folded backwards, and the short distance transfer is convenient.
Description
Technical Field
The invention belongs to the technical field of rotary drilling rigs, and particularly relates to a rotary drilling rig with a backward folded winch auxiliary mast
Background
The structural forms of rotary drilling rigs in the current market can be basically divided into two types: parallelogram structure and big triangle supporting structure. At present, a small and medium-sized rotary drilling rig generally adopts a parallelogram structure, the amplitude variation is flexible, the mast is folded backwards during transportation, the transportation is convenient, but the support angle of the mast oil cylinder to the mast during operation is small, the working stability is relatively poor, and the rock entering is not facilitated. At present, a large triangular support structure is generally adopted for a large rotary drilling rig, the support angle is large, a mast can bear larger torque, the working stability is high, the rock entering is convenient, the back inclination angle of the mast is generally up to 20 degrees at most, the gravity center is higher, the mast is prone to be moved forward during transportation, and components such as a power head, a drill rod and the like are required to be detached no matter long-distance or short-distance transportation, so that the assembly and the disassembly are extremely inconvenient, and time and labor are wasted.
The utility model discloses a but back folding rotary drilling rig of mast, including revolving stage, the movable arm, the mast, the drilling rod, the unit head, mast hydro-cylinder and become width of cloth hydro-cylinder, the one end and the revolving stage of movable arm hinge link to each other, the other end and the mast hinge of movable arm link to each other, the one end and the revolving stage hinge of mast hydro-cylinder link to each other, become width of cloth hydro-cylinder's the other end and the articulated link to each other of movable arm, rotary drilling rig still includes and plays to rise the hydro-cylinder, it links to each other with the revolving stage to play the one end of hydro-cylinder, play to rise the other end of hydro-cylinder and be the free end, play to be used for stretching out and hold the mast in the stage of falling mast or play stage. The amplitude variation mechanism of the rotary drilling rig has the advantages of the existing parallelogram amplitude variation mechanism and the double-large-triangle amplitude variation mechanism, is high in stability during working, can fold backwards, and is convenient for short-distance transfer. The lifting oil cylinder is fixedly connected with one end of the rotary table, the other end of the lifting oil cylinder is an automatic end, and the lifting oil cylinder stretches out and supports the mast in the mast falling stage or the lifting stage, but the lifting oil cylinder has the following technical problems:
1. in the mast falling process, the lifting oil cylinder possibly generates interference with a main hoisting steel wire rope, and a drill rod positioning device is added on rotary digging to solve the interference problem; before the lifting oil cylinder interferes with the main hoisting steel wire rope during operation, the main hoisting steel wire rope is in a loose state, so that a drilling machine operator can pull the main hoisting steel wire rope to one side by hand, interference between the main hoisting steel wire rope and the lifting oil cylinder is avoided, the complexity of the structure is increased, the manufacturing cost is increased, and the operation is inconvenient.
2. One end of the lifting oil cylinder is connected with the turntable, the other end of the lifting oil cylinder is a free end, the lifting oil cylinder is used for supporting the mast when the mast is tilted or lifted, the mast can be assisted to fold back to a horizontal state by the action of the lifting oil cylinder so as to facilitate short-distance transportation, but in the process of assisting the mast to tilt or tilt, the acting force of the mast relative to the lifting oil cylinder exists an offset angle relative to the lifting oil cylinder, so that the lifting oil cylinder is subjected to offset load, the offset angle can be changed along with the change of the angle of the mast relative to the horizontal plane, the stress direction of the lifting oil cylinder is uncertain and uneven, sealing elements in the lifting oil cylinder and the like are easily damaged, even the lifting oil cylinder is scrapped and cannot work, the service life of the lifting oil cylinder is greatly reduced, the safety coefficient is low, and the maintenance cost is high; meanwhile, as the lifting oil cylinder is subjected to unbalanced load, the bearing capacity of the lifting oil cylinder is limited, so that the mast is unstable when the mast is lifted or is tilted, and the requirements of different large rotary drilling rigs cannot be met, and the application range is limited.
3. When the auxiliary mast of the lifting oil cylinder is used for mast tilting or mast lifting, the other end of the lifting oil cylinder is in sliding friction when moving along the surface of the mast, so that the friction coefficient is large, the surface of the mast and the other end of the lifting oil cylinder are worn greatly, the mast and the lifting oil cylinder are damaged, the service lives of the mast and the lifting oil cylinder are shortened, and meanwhile the precision of the auxiliary mast tilting or mast lifting of the lifting oil cylinder is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the rotary drilling rig with high working stability, backward folding of the mast assembly, convenient short-distance transfer, safety and reliability and backward folding of the winch auxiliary mast.
In order to achieve the aim, the invention provides a rotary drilling rig with a winch auxiliary mast folded backwards, which comprises a chassis, a vehicle body platform, a movable arm, a luffing cylinder, a mast cylinder, a support rod, a winch mechanism, a mast assembly, a power head and a drill rod; the hoisting mechanism comprises a winding drum, a steel wire rope, a fixed pulley block and a movable pulley block; the power head is arranged on the mast assembly, and the drill rod is arranged on the power head;
the vehicle body platform is arranged on the chassis through a rotary support; one end of the movable arm is hinged with the vehicle body platform, and the other end of the movable arm is hinged with the mast assembly; one end of the amplitude variation oil cylinder is hinged with the vehicle body platform, and the other end of the amplitude variation oil cylinder is hinged with the movable arm; one end of the supporting rod is hinged with the vehicle body platform, and the other end of the supporting rod is hinged with one end of the mast oil cylinder; the other end of the mast oil cylinder is hinged with the mast assembly;
the winding drum is mounted on the vehicle body platform or the movable arm; the fixed pulley block is arranged on the movable arm; the movable pulley block is arranged on the mast assembly;
when the mast assembly is backward mast to an included angle with the horizontal plane, one end of the steel wire rope is wound on the winding drum, the other end of the steel wire rope sequentially bypasses the fixed pulley block and the movable pulley block and then is fixed on the movable arm or the shaft of the fixed pulley block, and the hoisting mechanism assists the mast assembly to continuously backward mast to a horizontal state;
when the mast assembly is used for lifting the mast, one end of the steel wire rope is wound on the winding drum, the other end of the steel wire rope sequentially bypasses the fixed pulley block and the movable pulley block and then is fixed on the movable arm or the fixed pulley block, the hoisting mechanism assists the mast assembly to lift from a horizontal state to a preset angle, and after the mast assembly reaches the preset angle, the steel wire rope wound on the movable pulley block and the fixed pulley block is unwound and is wound on the winding drum.
Further, when the mast assembly is backward debarked from the predetermined angle to a horizontal state and the mast assembly is mast from the horizontal state to the predetermined angle, the hoisting mechanism and the mast cylinder assist simultaneously or the hoisting mechanism alone assist the mast assembly in mast raising or debarking.
Further, the predetermined angle is 10-20 °.
Further, the number of the mast oil cylinders is two, and one ends of the two mast oil cylinders are respectively hinged with two ends of the supporting rod; a large triangle structure is formed among the mast oil cylinder, the support rod, the movable arm and the mast assembly; and a large triangle structure is formed between the two mast oil cylinders and the supporting rods.
Further, the auxiliary hoisting mechanism further comprises a transition pulley; when the winding drum is mounted on the car body platform, the transition pulley is mounted on the car body platform or the movable arm; when the winding drum is mounted on the movable arm, the transition pulley is mounted on the movable arm; the other end of the steel wire rope bypasses the transition pulley and then bypasses the fixed pulley block.
Compared with the prior art, the invention has the beneficial effects that: a large triangle structure is formed among the mast oil cylinder, the support rod, the movable arm and the mast assembly; a large triangular structure is formed between the two mast oil cylinders and the supporting rods, so that the structure is stable and the working stability is high. Simultaneously, when the mast assembly is backward debugged from a preset angle to a horizontal state and the mast assembly is lifted from the horizontal state to a preset angle, the hoisting mechanism and the mast oil cylinder simultaneously assist the mast assembly in lifting or debugging, or the hoisting mechanism independently assists the mast assembly in lifting or debugging; under the effect of hoist mechanism and mast hydro-cylinder, when the short distance is transferred to the rotary drilling rig of doing so, make mast assembly fold backward and place with the horizontal state, complete machine focus is low, and the transportation is steady, and factor of safety is high, so can be on the subaerial unblock of great slope, also can dodge the high altitude obstacle well, and the requirement is low to the building site when transferring the transportation, just can realize shifting without dismantling drilling rod and unit head moreover, labour saving and time saving. When the rotary drilling rig is transported for a long distance, the power head, the drill rod and other parts are removed, and auxiliary support is not needed. Therefore, the invention has the advantages of the existing parallelogram structure and large triangle structure, the stability is high during operation, the mast assembly can be folded backwards, the short distance transfer is also convenient, and meanwhile, compared with the lifting oil cylinder adopted in the prior art, the hoisting mechanism has the advantages of simple structure and low manufacturing cost, and the movable pulley block is labor-saving in use, and can provide larger acting force for the mast assembly to lift and tilt, thus ensuring the stability of the mast assembly and having high safety coefficient.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the hoisting mechanism of the present invention in assisting the mast laying or raising.
Figure 2 is a schematic view of the structure of the mast of the present invention when it is in a horizontal position or in a short distance transport position.
FIG. 3 is a schematic view of the mast to mast assembly of the present invention in an upright position.
FIG. 4 is a partial schematic view of the present invention showing the assembly of the mast cylinder and support rod.
The above reference numerals:
the device comprises a chassis 1, a vehicle body platform 2, a movable arm 3, a variable amplitude oil cylinder 4, a mast oil cylinder 5, a support rod 6, a fixed pulley block 7, a movable pulley block 8, a movable pulley block 9, a steel wire rope 10, a mast assembly 11, a power head 12, a drill rod 13 and a transition pulley 14.
Detailed Description
The invention is further described below with reference to the drawings, but is not intended to limit the scope of the invention.
Examples
1-3, the rotary drilling rig with the backward folding winch auxiliary mast comprises a chassis 1, a vehicle body platform 2, a movable arm 3, an amplitude-variable oil cylinder 4, a mast oil cylinder 5, a support rod 6, a winch mechanism, a mast assembly 11, a power head 12 and a drill rod 13; the hoisting mechanism comprises a winding drum 7, a steel wire rope 10, a fixed pulley block 8 and a movable pulley block 9; the power head 12 is mounted on the mast assembly 11, and the drill pipe 13 is mounted on the power head 12.
The vehicle body platform 2 is mounted on the chassis 1 through a slewing support; one end of the movable arm 3 is hinged with the vehicle body platform 2, and the other end of the movable arm is hinged with the mast assembly 11; one end of the luffing cylinder 4 is hinged with the vehicle body platform 2, and the other end of the luffing cylinder is hinged with the movable arm 3; one end of the supporting rod 6 is hinged with the vehicle body platform 2, and the other end of the supporting rod is hinged with one end of the mast oil cylinder 5; the other end of the mast cylinder 5 is hinged with the mast assembly 11.
The winding drum 7 is mounted on the vehicle body platform 2 or the movable arm 3; the fixed pulley block 8 is arranged on the movable arm 3; the movable pulley block 9 is mounted on the mast assembly 11. The winding mechanism further comprises a driving mechanism, the driving mechanism is rotationally connected with the winding drum 7 to drive the winding drum 7 to rotate, and the driving mechanism comprises a motor or a hydraulic motor and the like, which are not described in detail in the prior art.
As shown in fig. 4, the number of the mast oil cylinders 5 is two, and one ends of the two mast oil cylinders 5 are respectively hinged with two ends of the supporting rod 6; a large triangle structure is formed among the mast oil cylinder 5, the support rod 6, the movable arm 3 and the mast assembly 11; a large triangular structure is formed between the two mast oil cylinders 5 and the supporting rods 6, so that the invention has stable structure and high working stability.
When the mast assembly 11 is backward mast to a preset angle with the horizontal plane under the action of the mast oil cylinder 5 and the amplitude oil cylinder 4. One end of the steel wire rope 10 is wound on the winding drum 7, the other end of the steel wire rope sequentially bypasses the fixed pulley block 8 and the movable pulley block 9 and then is fixed on the movable arm 3 or the shaft of the fixed pulley block 8, and the hoisting mechanism assists the mast assembly 11 to continuously and backwardly tilt to a horizontal state, wherein the hoisting mechanism and the mast cylinder 5 assist the mast assembly 11 to tilt simultaneously or independently, and when the hoisting mechanism independently assists the mast assembly 11 to tilt, the mast cylinder 5 is in a floating state. Specifically, when the hoisting mechanism assists the mast assembly 11 to fall, the winding drum 7 rotates and slowly releases the steel wire rope 10, the movable pulley block 9 is far away from the fixed pulley block 8, and at the moment, the gravity of the mast assembly 11 is balanced relative to the moment of the hinge point of the mast assembly 11 and the movable arm 3 and the moment of the power provided by the hoisting mechanism is balanced relative to the moment of the hinge point of the mast assembly 11 and the movable arm 3, so that the safe falling mast is realized.
When the mast assembly 11 is started, one end of the steel wire rope 10 is wound on the winding drum 7, the other end of the steel wire rope sequentially bypasses the fixed pulley block 8 and the movable pulley block 9 and then is fixed on the movable arm 3 or the shaft of the fixed pulley block 8, and the hoisting mechanism assists the mast assembly 11 to start from a horizontal state to a preset angle, wherein the hoisting mechanism and the mast cylinder 5 assist the mast assembly 11 simultaneously or assist the hoisting mechanism alone, and when the hoisting mechanism assists the mast assembly 11 alone, the mast cylinder 5 is in a floating state. Specifically, when the hoisting mechanism assists the mast assembly 11 to lift the mast, the winding drum 7 rotates to pull the fixed pulley block 8 and the movable pulley block 9 through the steel wire rope 10, so that the movable pulley block 9 is close to the fixed pulley block 8, and the mast assembly 11 is driven to rotate around the hinge point of the mast assembly and the movable arm 3, so that the mast is lifted. When the angle between the mast assembly 11 and the horizontal plane reaches a preset angle, the steel wire ropes 10 on the fixed pulley block 8 and the movable pulley block 9 are released, the steel wire ropes 10 are fully wound on the winding drum 7, so that the follow-up work of the rotary drilling rig is not affected, and then under the action of the mast oil cylinder 5 and the luffing oil cylinder 4, the mast assembly 11 continues to lift the mast until the mast assembly 11 is in a vertical state, as shown in fig. 3, and the rotary drilling rig enters a working state.
In this embodiment, the predetermined angle is 10-20 °. In the prior art, the mast assembly 11 is deblocked from a predetermined angle to a horizontal state and from the horizontal state to a predetermined angle, and the mast cylinder 5 cannot finish the deblinding or the mast lifting of the mast assembly 11 in the deblinding and the mast lifting processes.
Under the action of the hoisting mechanism and the mast oil cylinder 5, when the rotary drilling rig needs short-distance transfer, the mast assembly 11 is folded backwards to be placed in a horizontal state, the gravity center of the whole machine is low, the transportation is stable, the safety coefficient is high, so that the rotary drilling rig can go through the ground with a larger gradient without blocking, high-altitude obstacles can be avoided well, the requirement on the construction site is low during transfer and transportation, and the displacement can be realized without disassembling the drill rod 13 and the power head 12, so that the rotary drilling rig is time-saving and labor-saving. When the rotary drilling rig is transported for a long distance, the power head 12, the drill rod 13 and other parts are removed, and auxiliary support is not needed. Therefore, the invention has the advantages of the existing parallelogram structure and large triangle structure, the stability is high during operation, the mast assembly can be folded backwards, the short distance transfer is also convenient, and meanwhile, compared with the lifting oil cylinder adopted in the prior art, the hoisting mechanism has the advantages of simple structure and low manufacturing cost, and the movable pulley block 8 can save labor during use and provide larger acting force for the mast assembly 11 to lift and tilt, thus ensuring the stability of the mast assembly and having high safety coefficient.
The auxiliary hoisting mechanism of the invention also comprises a transition pulley 14; when the winding drum 7 is mounted on the car body platform 2, the transition pulley 14 is mounted on the car body platform 2 or the movable arm 3; when the spool 7 is mounted on the boom 3, the transition pulley 14 is mounted on the boom 3; the other end of the steel wire rope 10 passes around the transition pulley 14 and then passes around the fixed pulley block 8. The transition pulley 14 is used to change the direction of the wire rope 10. In the present embodiment, as shown in fig. 1 to 3, the reel 7 is mounted on the vehicle body platform 2, the transition pulley 14 is mounted on the movable arm 3, and the other end of the wire rope 10 is fixed on the shaft of the fixed pulley block 8. Whether or not the transition pulley 14 is required depends on the position where the spool 7 is mounted on the body platform 2 or the boom 3.
As shown in fig. 1-3, the hoisting mechanism takes the form of a single wire rope 10, in which case the movable pulley block 9 comprises only one movable pulley and the fixed pulley block 8 comprises only one fixed pulley. Further, the hoisting mechanism can also adopt a form of a plurality of steel wires 10, wherein the form of the plurality of steel wires 10 can provide larger acting force, and at the moment, according to the increase of the number of the steel wires 10, the number of pulleys included in the corresponding movable pulley block 9 and the number of pulleys included in the fixed pulley block 8 are increased.
In this embodiment, the two parts are hinged to each other through a hinge shaft, or are hinged through other existing manners, and this is the prior art and will not be described in detail.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a hoist auxiliary mast backward folding digs rig soon which characterized in that: the device comprises a chassis, a vehicle body platform, a movable arm, a luffing cylinder, a mast cylinder, a supporting rod, a hoisting mechanism, a mast assembly, a power head and a drill rod; the hoisting mechanism comprises a winding drum, a steel wire rope, a fixed pulley block and a movable pulley block; the power head is arranged on the mast assembly, and the drill rod is arranged on the power head; the vehicle body platform is arranged on the chassis through a rotary support; one end of the movable arm is hinged with the vehicle body platform, and the other end of the movable arm is hinged with the mast assembly; one end of the amplitude variation oil cylinder is hinged with the vehicle body platform, and the other end of the amplitude variation oil cylinder is hinged with the movable arm; one end of the supporting rod is hinged with the vehicle body platform, and the other end of the supporting rod is hinged with one end of the mast oil cylinder; the other end of the mast oil cylinder is hinged with the mast assembly; the winding drum is mounted on the vehicle body platform or the movable arm; the fixed pulley block is arranged on the movable arm; the movable pulley block is arranged on the mast assembly;
when the mast assembly is backward mast to an included angle with the horizontal plane, one end of the steel wire rope is wound on the winding drum, the other end of the steel wire rope sequentially bypasses the fixed pulley block and the movable pulley block and then is fixed on the movable arm or the shaft of the fixed pulley block, and the hoisting mechanism assists the mast assembly to continuously backward mast to a horizontal state;
when the mast assembly is used for lifting the mast, one end of the steel wire rope is wound on the winding drum, the other end of the steel wire rope sequentially bypasses the fixed pulley block and the movable pulley block and then is fixed on the movable arm or the fixed pulley block, the hoisting mechanism assists the mast assembly to lift from a horizontal state to a preset angle, and after the mast assembly reaches the preset angle, the steel wire rope wound on the movable pulley block and the fixed pulley block is unwound and is wound on the winding drum.
2. The rotary drilling rig of claim 1, wherein the winch mechanism and the mast cylinder assist simultaneously or the winch mechanism alone assist the mast assembly in raising or lowering the mast assembly from the predetermined angle back to a horizontal position and the mast assembly from the horizontal position to the predetermined angle.
3. A rotary drilling rig with a backwards folded winch auxiliary mast according to claim 1 or 2, characterized in that the predetermined angle is 10-20 °.
4. The rotary drilling rig with the backward folded winch auxiliary mast according to claim 1 or 2, wherein the number of the mast oil cylinders is two, and one ends of the two mast oil cylinders are respectively hinged with two ends of the supporting rod; a large triangle structure is formed among the mast oil cylinder, the support rod, the movable arm and the mast assembly; and a large triangle structure is formed between the two mast oil cylinders and the supporting rods.
5. A rotary drilling rig with a backwards folded winch auxiliary mast according to claim 1 or 2, characterized in that the winch mechanism further comprises a transition pulley; when the winding drum is mounted on the car body platform, the transition pulley is mounted on the car body platform or the movable arm; when the winding drum is mounted on the movable arm, the transition pulley is mounted on the movable arm; the other end of the steel wire rope bypasses the transition pulley and then bypasses the fixed pulley block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067340.0A CN108868601B (en) | 2018-09-13 | 2018-09-13 | Rotary drilling rig with backward folded winch auxiliary mast |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067340.0A CN108868601B (en) | 2018-09-13 | 2018-09-13 | Rotary drilling rig with backward folded winch auxiliary mast |
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| Publication Number | Publication Date |
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| CN108868601A CN108868601A (en) | 2018-11-23 |
| CN108868601B true CN108868601B (en) | 2023-07-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109441361B (en) * | 2018-12-11 | 2024-05-14 | 山河智能装备股份有限公司 | Pile frame and mast erecting method thereof |
| CN109736705A (en) * | 2019-03-20 | 2019-05-10 | 上海中联重科桩工机械有限公司 | Rotary drilling rig and its operating method |
| CN114645672B (en) * | 2022-05-23 | 2022-08-02 | 烟建集团有限公司 | Rotary drilling rock drilling device |
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| CN104533303B (en) * | 2015-01-09 | 2016-04-27 | 恒天九五重工有限公司 | To lie prone before a kind of mast of high pulling torque rotary drilling rig is folding formula transport structure |
| CN105058052B (en) * | 2015-08-28 | 2017-07-25 | 中国能源建设集团湖南火电建设有限公司 | A kind of 3MW wind power generating sets installation method |
| CN105649541B (en) * | 2016-03-14 | 2017-12-15 | 上海中联重科桩工机械有限公司 | Dual-polyline variable-amplitude mechanism, dual slope rotary drilling rig and folding mast control method |
| CN106223865B (en) * | 2016-09-26 | 2018-10-12 | 上海中联重科桩工机械有限公司 | Mast folding-back rotary drilling rig and method with drilling rod movable mast |
| CN207131343U (en) * | 2017-08-10 | 2018-03-23 | 恒天九五重工有限公司 | A kind of mast can wide-angle hypsokinesis big gusseted rotary drilling rig |
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