CN108425620B - Rotary drilling rig - Google Patents
Rotary drilling rig Download PDFInfo
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- CN108425620B CN108425620B CN201810314962.2A CN201810314962A CN108425620B CN 108425620 B CN108425620 B CN 108425620B CN 201810314962 A CN201810314962 A CN 201810314962A CN 108425620 B CN108425620 B CN 108425620B
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- drilling rig
- wire rope
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- 238000005553 drilling Methods 0.000 title claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 241000287828 Gallus gallus Species 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 19
- 239000010705 motor oil Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000000725 suspension Substances 0.000 abstract description 10
- 238000013461 design Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The invention relates to the technical field of heavy machinery equipment, in particular to a rotary drilling rig. The rotary drilling rig provided by the invention comprises a mast, a winch, a suspension anchor frame, a power head, a drill rod, a lifter, a driving mechanism and a steel wire rope, wherein the winch comprises a plurality of rollers, the steel wire rope is arranged in one-to-one correspondence with the rollers, so that the drill rod can be lifted through the plurality of steel wire ropes, the bearing performance of the plurality of steel wire ropes can be improved, the lifting force can be improved, the requirement of the rotary drilling rig on the lifting force can be met, meanwhile, the lifting force can be increased without customizing accessories such as a hydraulic motor, a speed reducer, the steel wire rope, a pulley and the like of a special model, the problem of overhigh cost caused by using the special accessories is avoided, the lifting force of the rotary drilling rig can be improved on the premise of not increasing the cost, and meanwhile, the production efficiency and the safety coefficient are higher due to the increase of the lifting force.
Description
Technical Field
The invention relates to the technical field of heavy machinery equipment, in particular to a rotary drilling rig.
Background
At present, no matter how large a rotary drilling rig is, the domestic and international rotary drilling rigs are in a single wire rope mode or a double wire rope mode, namely, one drum is provided with a speed reducer to be driven by 1 hydraulic motor to operate or one drum is provided with two speed reducers to be driven by two hydraulic motors to operate, both the devices are lifted by using a single wire rope, and as the wire rope is connected with a drill rod, the installation size of the drill rod core rod is small, the lifting force cannot be increased by adopting a crane using multiplying power mode.
With the rapid development of pile foundation engineering, many large-diameter and deep-pile engineering have been developed to meet engineering design requirements, for example: the pile diameter of the drilling pile of the flat-pool highway and railway dual-purpose bridge engineering is 4.0 meters and 4.5 meters, the pile diameter of the Jiashao river-crossing large bridge is 3.8 meters, the pile length is 110 meters, the corresponding drilling tool is increased along with the increase of the pile diameter of the pile foundation engineering, the drill rod is also lengthened, and the diameter is increased, so that the lifting force of the rotary drilling rig is required to be correspondingly increased by a plurality of times, and the current rotary drilling rig cannot meet market requirements under the condition of ensuring construction safety; the torque force of a speed reducer and a hydraulic motor is required to be increased for improving the lifting force of the rotary drilling rig, a thicker steel wire rope is required to be used for safe construction, and the sizes of pulleys and rollers associated with the steel wire rope are also required to be increased, so that accessories such as motors, speed reducers, steel wire ropes, pulleys, rolling and the like of special types are required to be customized, the cost is greatly increased, and the production and processing difficulties of the accessories are increased; the production period can be prolonged greatly, the safety coefficient of using a common single steel wire rope is not high enough than that of using a plurality of steel wire ropes, the diameter of the steel wire rope directly influences the use diameters of the pulley and the roller, the use diameters of the pulley and the roller are at least 20 times that of the steel wire rope, and the single steel wire rope cannot be used when the use diameters reach a certain value.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the existing rotary drilling drills all adopt a single steel wire rope structure, and the problems of insufficient lifting force, high production cost, high production difficulty, low safety coefficient and the like limited by the diameter of the steel wire rope exist.
(II) technical scheme
In order to solve the technical problems, the invention provides a rotary drilling rig which comprises a mast, a winch, a suspension anchor frame, a power head, a drill rod, a lifter, a driving mechanism and steel wire ropes, wherein the upper end of the mast is fixedly connected with the suspension anchor frame, the suspension anchor frame is provided with a main pulley and an auxiliary pulley, the winch comprises a plurality of rollers, the steel wire ropes are arranged in one-to-one correspondence with the rollers, the driving mechanism is used for driving the rollers to rotate, one end of each steel wire rope is fixed on the corresponding roller, the other end of each steel wire rope sequentially bypasses the main pulley and the auxiliary pulley on the suspension anchor frame to be connected with the upper end of the lifter, the lower end of the lifter is rotationally connected with the upper end of the drill rod, the power head is fixed on the mast, and the lower end of the drill rod penetrates through the power head and is used for driving the drill rod to rotate.
The invention has the beneficial effects that: the rotary drilling rig provided by the invention comprises a mast, a winch, a suspension anchor frame, a power head, a drill rod, a lifter, a driving mechanism and a steel wire rope, wherein the winch comprises a plurality of rollers, the steel wire rope is arranged in one-to-one correspondence with the rollers, so that the drill rod can be lifted through the plurality of steel wire ropes, the bearing performance of the plurality of steel wire ropes can be improved, the lifting force can be improved, the requirement of the rotary drilling rig on the lifting force can be met, meanwhile, the lifting force can be increased without customizing accessories such as a hydraulic motor, a speed reducer, the steel wire rope, a pulley and the like of a special model, the problem of overhigh manufacturing cost caused by using the special accessories is avoided, the lifting force of the rotary drilling rig can be improved on the premise of not increasing the manufacturing cost, and meanwhile, the production efficiency and the safety coefficient are higher due to the increase of the lifting force.
Further, the elevator comprises a chicken heart ring, a rotating shaft, bearings, limiting parts and a shell assembly, wherein a first installation cavity and a second installation cavity are formed in the shell assembly, the first installation cavity is located on the upper side of the second installation cavity, the chicken heart ring is fixed in the first installation cavity, the other end of each steel wire rope bypasses at least one chicken heart ring and is connected with the steel wire rope, the bearings are arranged in the second installation cavity, the upper end of each rotating shaft penetrates through the bearings and is matched with the bearings, the lower end of each rotating shaft is fixedly connected with the drill rod, and the limiting parts are used for limiting the rotating shaft to move downwards.
Further, the limiting piece is a limiting nut in threaded connection with the rotating shaft, and the lower surface of the limiting nut is pressed on the upper surface of the bearing.
Further, the casing assembly comprises a first casing and a second casing, a first installation cavity with an upper end open is formed in the first casing, a second installation cavity with a lower end open is formed in the second casing, the lower end of the first casing is connected with the second casing through a connecting plate, a U-shaped groove is formed in the lower end of the rotating shaft, and the upper end of the drill rod is fixed in the U-shaped groove.
Further, each chicken heart ring is fixed in the first mounting cavity through a fixing shaft.
Further, the heart-shaped rings are arranged in one-to-one correspondence with the steel wire ropes.
Further, the other end of one of the steel wire ropes sequentially bypasses the two chicken heart rings and is connected with the steel wire rope, and other steel wire ropes are respectively arranged in one-to-one correspondence with the chicken heart rings.
Further, the rotary drilling rig further comprises rear back wheels which are arranged in one-to-one correspondence with the steel wire ropes, and each steel wire rope bypasses the corresponding rear back wheel.
Further, the rotary drilling rig further comprises a running mechanism, a machine body and a follow-up frame, wherein the machine body is arranged on the running mechanism, the driving mechanism, the winch and the mast are all arranged on the machine body, the follow-up frame is positioned on the upper side of the power head and is in sliding connection with the mast, and the upper end of the drill rod is erected on the surface of the follow-up frame.
Further, the driving mechanism is a hydraulic pump, the winch further comprises a hydraulic motor and a speed reducer which are arranged in one-to-one correspondence with the rollers, the hydraulic motor is connected with the corresponding rollers through the speed reducer, and the hydraulic pump is respectively connected with a plurality of hydraulic motor oil paths.
Drawings
The advantages of the foregoing and/or additional aspects of the present invention will become apparent and readily appreciated from the description of the embodiments, taken in conjunction with the accompanying drawings, wherein:
FIG. 1 is a rear view of a rotary drilling rig according to the present invention;
FIG. 2 is a side view of the rotary drilling rig of the present invention;
fig. 3 is an enlarged view of a portion a of fig. 2;
FIG. 4 is a top view of an elevator provided with two steel cords;
FIG. 5 is a top view of an elevator provided with three steel cords;
FIG. 6 is a top view of an elevator provided with four steel cords;
FIG. 7 is a top view of an elevator provided with five wire ropes;
FIG. 8 is a cross-sectional view of the elevator;
fig. 9 is another cross-sectional view of the elevator.
Wherein the correspondence between the reference numerals and the component names in fig. 1 to 9 is:
1. the device comprises a travelling mechanism, 11, a machine body, 12, a mast, 121, a power head, 122, a follow-up frame, 123, a hanging anchor frame, 124, a main pulley, 125, an auxiliary pulley, 126, a back pulley, 2, a drill rod, 3, a steel wire rope, 4, a winch, 41, a roller, 42, a speed reducer, 5, a hydraulic pump, 6, an elevator, 61, a first shell, 62, a second shell, 63, a heart-shaped ring, 64, a rotating shaft, 641, a U-shaped groove, 65, a bearing, 66, a limit nut, 67, a connecting plate, 68, a fixed shaft, 69, a vertical plate, 7 and a clamping.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
As shown in fig. 1 to 9, the invention provides a rotary drilling rig, which comprises a mast 12, a winch 4, a suspension anchor frame 123, a power head 121, a drill rod 2, a lifter 6, a driving mechanism and a wire rope 3, wherein the upper end of the mast 12 is fixedly connected with the suspension anchor frame 123, a main pulley 124 and an auxiliary pulley 125 are arranged on the suspension anchor frame 123, the winch 4 comprises a plurality of rollers 41, the wire rope 3 is arranged in one-to-one correspondence with the rollers 41, the driving mechanism is used for driving the plurality of rollers 41 to rotate, one end of each wire rope 3 is fixed on the corresponding roller 41, the other end sequentially bypasses the main pulley 124 and the auxiliary pulley 125 on the suspension anchor frame 123 and is connected with the upper end of the lifter 6, the lower end of the drill rod lifter 6 is rotatably connected with the upper end of the drill rod 2, the power head 121 is fixed on the mast 12, and the lower end of the drill rod 2 passes through the power head 121 and the power head 121 is used for driving the drill rod 2 to rotate.
The rotary drilling rig provided by the invention comprises the mast 12, the winch 4, the anchor boom 123, the power head 121, the drill rod 2, the elevator 6, the driving mechanism and the steel wire ropes 3, wherein the winch 4 comprises a plurality of rollers 41, the steel wire ropes 3 are arranged in one-to-one correspondence with the rollers 41, so that the drill rod 2 can be lifted through the plurality of steel wire ropes 3, the bearing performance can be increased, the lifting force can be improved, the requirement of the rotary drilling rig on the lifting force can be met, meanwhile, the lifting force can be increased without customizing accessories such as hydraulic motors, speed reducers 42, steel wire ropes 3, pulleys and the like of special types, the high cost of using the special accessories is avoided, the problem of high processing difficulty caused by producing the accessories is avoided, the lifting force of the rotary drilling rig can be improved on the premise of not increasing the cost, the cost is lower, and meanwhile, the production efficiency and the safety coefficient are higher due to the increase of the lifting force.
As shown in fig. 8 and 9, the elevator 6 includes a chicken heart ring 63, a rotating shaft 64, a bearing 65, a limiting member and a housing assembly, a first mounting cavity and a second mounting cavity are formed in the housing assembly, the first mounting cavity is located at the upper side of the second mounting cavity, the chicken heart ring 63 is fixed in the first mounting cavity, the other end of each steel wire rope 3 bypasses at least one chicken heart ring 63 and is connected with the steel wire rope 3, the bearing 65 is arranged in the second mounting cavity, the upper end of the rotating shaft 64 penetrates through the bearing 65 and is matched with the bearing 65, the lower end of the rotating shaft is fixedly connected with the drill rod 2, and the lifting force of the plurality of steel wire ropes 3 is transmitted to the rotary drilling drill through the elevator 6 without influencing the rotation of the rotary drilling drill.
As shown in fig. 8 and 9, the housing assembly includes a first housing 61 and a second housing 62, a first installation cavity with an open upper end is formed in the first housing 61, a second installation cavity with an open lower end is formed in the second housing 62, the lower end of the first housing 61 is connected with the second housing 62 through a connecting plate 67, a U-shaped groove 641 is formed at the lower end of the rotating shaft 64, and the upper end of the drill rod 2 is fixed in the U-shaped groove 641; the end of the wire rope 3 far away from the drum 41 enters from the opening position at the upper end of the first installation cavity and is wound around the chicken heart ring 63, and then is connected with the wire rope 3 and fixed, namely, the end of the wire rope 3 far away from the drum 41 forms a sleeve-shaped structure and is sleeved outside the chicken heart ring 63, preferably, the end of the wire rope 3 far away from the drum 41 is connected with the wire rope 3 through the clamping 7 to form a sleeve-shaped structure, of course, other modes can be adopted for connection, and the design idea of the invention can be realized as long as the wire rope 3 can be wound around and sleeved outside the chicken heart ring 63.
As shown in fig. 8 and 9, each chicken heart ring 63 is fixed in the first cavity by a fixing shaft 68, wherein as shown in fig. 5, a plurality of risers 69 are formed in the first cavity, the risers 69 divide the first cavity into sub-cavities corresponding to the number of the chicken heart rings 63 one by one in sequence, that is, each sub-cavity is provided with one chicken heart ring 63, and then each chicken heart ring 63 is fixed by a fixing shaft 68, wherein each chicken heart ring 63 may correspond to one fixing shaft 68, or a plurality of chicken heart rings 63 may be fixed by the same fixing shaft 68.
As shown in fig. 9, one of the other ends of the steel wire ropes 3 sequentially bypasses the two heart-shaped rings 63 and is connected with the steel wire rope 3, and the other steel wire ropes 3 are respectively arranged in one-to-one correspondence with the heart-shaped rings 63, namely, when a plurality of steel wire ropes 3 are arranged, one of the steel wire ropes 3 bypasses the two heart-shaped rings 63, and the winding strength of the steel wire ropes 3 is broken by arranging the two heart-shaped rings 63: in the working process, the steel wire rope is wound into one strand, after the working is finished, the steel wire rope wound into one strand can generate a force for curling the steel wire rope, the steel wire rope is influenced to be recovered to the winch, the plurality of chicken heart rings can ensure that at least one chicken heart ring and the steel wire rope connected with the chicken heart ring always lift the lifter and the drill rod, and other steel wire ropes needing to be broken need to take down the fixed shafts corresponding to the chicken heart rings, so that the breaking effect is achieved. Then, other steel wire ropes 3 are arranged in one-to-one correspondence with the heart-shaped rings 63, namely, each steel wire rope 3 bypasses one heart-shaped ring 63 to form a lantern ring structure.
Of course, in the present application, the plurality of steel wire ropes 3 may be all arranged in one-to-one correspondence with the heart-shaped rings 63, which can achieve the object of the present application, and the purpose of the present application is not departing from the design concept of the present application, and the present application shall be within the scope of protection.
As shown in fig. 8 and 9, the limiting member is a limiting nut 66 in threaded connection with the rotating shaft 64, the lower surface of the limiting nut 66 is pressed on the upper surface of the bearing 65, preferably, a clamping groove is formed in the second cavity, the bearing 65 is fixed in the clamping groove, the rotating shaft 64 is matched with the bearing 65, and since the lower end of the rotating shaft 64 is connected with the upper end of the drill rod 2, the drill rod 2 can rotate relative to the elevator 6 and can rotate under the driving of the power head 121, so as to realize drilling of the drill rod 2; while the upper end of the shaft 64 is restrained by a retaining nut 66 to prevent the drill from exiting the second mounting cavity.
As shown in fig. 1 to 3, the rotary drilling rig further includes rear back wheels 126 disposed in one-to-one correspondence with the wire ropes 3, and each wire rope 3 bypasses the corresponding rear back wheel 126, that is, one end of each wire rope 3 away from the drum 41 bypasses the corresponding rear back wheel 126 and then simultaneously bypasses the main pulley 124 and the auxiliary pulley 125 on the anchor frame 123. The wire rope 3 is wound around the corresponding back wheel 126 on the side of the back wheel 126 close to the mast 12, and around the main pulley 124 and the auxiliary pulley 125 on the upper sides of the main pulley 124 and the auxiliary pulley 125.
Preferably, as shown in fig. 1 and 3, two winches 4 are provided, and correspondingly, as shown in fig. 8 and 9, two back wheels 126 and two heart-shaped rings 63 are provided, so that one wire rope 3 bypasses two heart-shaped rings 63 and is fixed through a clamping 7 to form a collar structure, the other wire rope 3 bypasses one heart-shaped ring 63 and is fixed through the clamping 7 to form a collar structure, the wire rope 3 bypasses the lower end of the heart-shaped ring 63, and then the wire rope 3 can be driven to wind by rotating the roller 41 to lift the drill rod 2, and due to the two wire ropes 3, the two wire ropes 3 correspond to the two rollers 41, the lifting force of the wire rope 3 is larger, the working efficiency is higher, and the safety performance is better.
Of course, as shown in fig. 4 to 7, three, four, five, six, etc. wire ropes 3 may be provided in the present application, and the design concept of the present application can be realized as long as the purpose of lifting the drill pipe 2 together by a plurality of wire ropes 3 is achieved, which should fall within the protection scope of the present application.
As shown in fig. 1 to 3, the rotary drilling rig further comprises a travelling mechanism 1, a machine body 11 and a follower frame 122, wherein the machine body 11 is installed on the travelling mechanism 1, the driving mechanism, the winch 4 and the mast 12 are all installed on the machine body 11, the follower frame 122 is positioned on the upper side of the power head 121 and is in sliding connection with the mast 12, and the upper end of the drill rod 2 is fixedly connected with the follower frame 122; when the drill rod 2 drills, the power head 121 arranged at the lower end of the mast 12 drives the drill rod 2 to rotate, wherein the drill rod 2 comprises a plurality of sections of rod bodies sleeved in sequence, the power head 121 drills the outermost rod body during drilling, at the moment, the upper end of the outermost rod body of the drill rod 2 is fixedly connected with the follow-up frame 122, so that the follow-up frame 122 slides downwards under the driving of the drill rod 2 until the drilling of the outermost rod body is completed, the follow-up frame 122 is fixed at the moment, and then the power head 121 continuously drives the inner rod body, so that the drilling is sequentially completed from inside to outside until the drilling of the drill rod 2 is completed; when the drill rod 2 is lifted, the driving mechanism drives the roller 41 to rotate, so that the steel wire rope 3 is driven to wind on the roller 41, and the drill rod 2 is slowly lifted along with the continuous rotation of the roller 41.
Optionally, the driving mechanism is a hydraulic pump 5, the hoist 4 further comprises a hydraulic motor and a speed reducer 42 which are arranged in one-to-one correspondence with the rollers 41, the hydraulic motor is connected with the corresponding rollers 41 through the speed reducer 42, the hydraulic pump 5 is respectively connected with a plurality of hydraulic motor oil paths, the hydraulic pump 5 supplies oil for the hydraulic motor during operation, and the hydraulic motor drives the rollers 41 to rotate through the speed reducer 42 in the rollers 41, so that the purpose that the steel wire rope 3 lifts the drill rod 2 is achieved.
In summary, the rotary drilling rig provided by the invention comprises the mast, the winch, the anchor frame, the power head, the drill rod, the elevator, the driving mechanism and the steel wire ropes, wherein the winch comprises a plurality of rollers, the steel wire ropes are arranged in one-to-one correspondence with the rollers, so that the drill rod can be lifted through the plurality of steel wire ropes, the bearing performance of the plurality of steel wire ropes can be improved, the lifting force can be improved, the requirement of the rotary drilling rig on the lifting force can be met, meanwhile, the lifting force can be increased without customizing accessories such as hydraulic motors, speed reducers, steel wire ropes, pulleys and the like of special models, the high cost of using the special accessories is avoided, the lifting force cost of the rotary drilling rig can be improved on the premise of not increasing the cost, and meanwhile, the production efficiency and the safety coefficient are higher due to the increase of the lifting force.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct or indirect through an intermediate medium, or may be internal to two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The utility model provides a dig rig soon which characterized in that: the hoisting device comprises a mast, a hoisting machine, a hoisting anchor frame, a power head, a drill rod, a lifter, a driving mechanism and steel wire ropes, wherein the upper end of the mast is fixedly connected with the hoisting anchor frame, a main pulley and an auxiliary pulley are arranged on the hoisting anchor frame, the hoisting machine comprises a plurality of rollers, the steel wire ropes are arranged in one-to-one correspondence with the rollers, the driving mechanism is used for driving the rollers to rotate, one end of each steel wire rope is fixed on the corresponding roller, the other end of each steel wire rope sequentially bypasses the main pulley and the auxiliary pulley on the hoisting anchor frame and is connected with the upper end of the lifter, the lower end of the lifter is rotationally connected with the upper end of the drill rod, the power head is fixed on the mast, and the lower end of the drill rod passes through the power head which is used for driving the drill rod to rotate;
The rotary drilling rig further comprises rear back wheels which are arranged in one-to-one correspondence with the steel wire ropes, the rear back wheels are fixed on the mast, and each steel wire rope bypasses the corresponding rear back wheel;
The rotary drilling rig further comprises a running mechanism, a machine body and a follow-up frame, wherein the machine body is arranged on the running mechanism, the driving mechanism, the winch and the mast are all arranged on the machine body, the follow-up frame is located on the upper side of the power head and is in sliding connection with the mast, and the upper end of the drill rod is erected on the surface of the follow-up frame.
2. The rotary drilling rig of claim 1, wherein: the elevator comprises a chicken heart ring, a rotating shaft, a bearing, a limiting piece and a shell assembly, wherein a first installation cavity and a second installation cavity are formed in the shell assembly, the first installation cavity is positioned on the upper side of the second installation cavity, the chicken heart ring is fixed in the first installation cavity, and the other end of each steel wire rope bypasses at least one chicken heart ring and is connected with the steel wire rope;
the bearing is arranged in the second mounting cavity, the upper end of the rotating shaft penetrates through the bearing and is matched with the bearing, the lower end of the rotating shaft is fixedly connected with the drill rod, and the limiting piece is used for limiting the rotating shaft to move downwards.
3. The rotary drilling rig of claim 2, wherein: the limiting piece is a limiting nut in threaded connection with the rotating shaft, and the lower surface of the limiting nut is pressed on the upper surface of the bearing.
4. The rotary drilling rig of claim 2, wherein: the casing assembly comprises a first casing and a second casing, a first installation cavity with an upper end open is formed in the first casing, a second installation cavity with a lower end open is formed in the second casing, the lower end of the first casing is connected with the second casing through a connecting plate, a U-shaped groove is formed in the lower end of the rotating shaft, and the upper end of the drill rod is fixed in the U-shaped groove.
5. The rotary drilling rig of claim 4, wherein: each chicken heart ring is fixed in the first mounting cavity through a fixing shaft.
6. The rotary drilling rig of claim 5, wherein: the heart-shaped rings are arranged in one-to-one correspondence with the steel wire ropes.
7. The rotary drilling rig of claim 5, wherein: one of the other ends of the steel wire ropes sequentially bypasses the two chicken heart rings and is connected with the steel wire rope, and the other steel wire ropes are respectively arranged in one-to-one correspondence with the chicken heart rings.
8. The rotary drilling rig according to any one of claims 1 to 7, wherein: the driving mechanism is a hydraulic pump, the winch further comprises a hydraulic motor and a speed reducer, the hydraulic motor and the speed reducer are arranged in one-to-one correspondence with the rollers, the hydraulic motor is connected with the corresponding rollers through the speed reducer, and the hydraulic pump is respectively connected with a plurality of hydraulic motor oil ways.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314962.2A CN108425620B (en) | 2018-04-10 | Rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810314962.2A CN108425620B (en) | 2018-04-10 | Rotary drilling rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108425620A CN108425620A (en) | 2018-08-21 |
| CN108425620B true CN108425620B (en) | 2024-07-16 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208203117U (en) * | 2018-04-10 | 2018-12-07 | 英联鑫博(天津)机械制造有限公司 | A kind of rotary drilling rig |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208203117U (en) * | 2018-04-10 | 2018-12-07 | 英联鑫博(天津)机械制造有限公司 | A kind of rotary drilling rig |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Xinyu Inventor before: Zhao Xinyu Inventor before: Hu Lianqi |
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Effective date of registration: 20240415 Address after: 221311 No. 1, north side of Jinshajiang Road, Tushan Town Industrial Park, Pizhou City, Xuzhou City, Jiangsu Province Applicant after: Yahe Zhizao (Jiangsu) Technology Co.,Ltd. Country or region after: China Address before: 301800 Tianjin Baodi District State owned 232 Factory Applicant before: YINGLIAN XINBO (TIANJIN) MACHINERY MANUFACTURING Co.,Ltd. Country or region before: China Applicant before: BEIJING YAHE TONGSHUN FOUNDATION ENGINEERING Co.,Ltd. |
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