CN113928986B - Hydraulic control cantilever lifting system - Google Patents
Hydraulic control cantilever lifting system Download PDFInfo
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- CN113928986B CN113928986B CN202111177638.9A CN202111177638A CN113928986B CN 113928986 B CN113928986 B CN 113928986B CN 202111177638 A CN202111177638 A CN 202111177638A CN 113928986 B CN113928986 B CN 113928986B
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- lifting system
- telescopic arm
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- 230000000670 limiting effect Effects 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 10
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- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 208000034656 Contusions Diseases 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
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- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 208000034526 bruise Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000003825 pressing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
- B66C23/166—Simple cranes with jibs which may be fixed or can slew or luff
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/706—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by other means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
- B66C23/86—Slewing gear hydraulically actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
- B66C23/94—Safety gear for limiting slewing movements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides a hydraulic control cantilever lifting system which comprises a telescopic arm and a basic arm, wherein the telescopic arm is arranged in the basic arm in a sliding way, a bearing column is arranged at the lower side of the telescopic arm, the bearing column is connected with a connecting seat through a driving rotary supporting device, the connecting seat is connected with a derrick upper body through a fixing seat, and a hydraulic winch assembly is arranged at the lower side of the fixing seat; still include first assembly pulley and second assembly pulley, first assembly pulley is located the telescopic boom, and the second assembly pulley is located the spandrel post, is connected with wire rope on the hydraulic winch subassembly, and wire rope winds respectively on second assembly pulley and first assembly pulley. The invention has smart structure, provides convenience for hoisting, has multiple protection mechanisms, ensures the safety and the high efficiency of use, can adapt to work under various working conditions, and has good economic benefit.
Description
Technical Field
The invention relates to the technical field of petroleum drilling equipment, in particular to a hydraulic control cantilever lifting system.
Background
Because of the requirement of quick-moving, quick-assembling and quick-maintaining of the traditional truck-mounted drilling and repairing machine, the parts and equipment configured by a plurality of drilling and repairing machines are simple and portable, such as a simple operation drill floor, and the drill floor can only be configured with a ladder and an outer guardrail due to space size limitation, and does not have equipment such as a tool room, a driller room, a pneumatic winch, a cat head and the like, so that a plurality of wellhead tools on the drill floor, such as a screw tap, a drill bit, a drill collar, a drill rod, an oil rod, a sleeve, an elevator and the like, need to be manually carried, the workload of workers is extremely high, the operation reliability is poor, the damage to drilling tools is serious, and the drilling tools are extremely unsafe and easy to bruise and crush.
In the process of performing continental scientific drilling operation, frequent tripping and discharging operations are required for hundreds to thousands of drill rods, core tubes, casings and the like to extract the core; the time taken to trip and drill is more than 1/3 of the total operating time and more than 79% of all drilling accidents are caused by drill delivery. If the drilling tool is manually moved, the working load of workers is large, the operation reliability is poor, the damage degree of the drilling tool is serious, and the occurrence frequency of safety accidents is high. If the novel hydraulic control lifting system is used, the efficiency of the whole process operation process is improved, the workload of workers can be reduced, and the operation period of the whole drilling and repairing machine system is shortened.
In order to reduce the safety risk and improve the operability, the higher requirement of the quick-moving quick-mounting operation time of the truck-mounted drilling and repairing machine is met. The drilling tool on the simple drilling platform surface is manually carried, so that the operation efficiency, the safety and the economy are seriously affected, and the design of the cantilever crane system can meet the market requirements.
Chinese patent document CN 104176656A describes a cantilever beam rotary telescopic crane, in which the length of the cantilever is changed by installing a telescopic beam at the lower part of the cantilever beam, but the structure is mounted at the bottom of the cantilever beam only through rollers due to non-rigid connection between the telescopic beam and the cantilever beam, so that the stress on the cantilever beam has the problems of non-uniformity and stress concentration, and defects exist in the use process, thus requiring improvement, and since the actuating mechanism of the telescopic beam is totally exposed to the outside, is unsuitable for the working condition environment of petroleum exploitation, and thus requires improvement.
Disclosure of Invention
The invention provides a hydraulic control cantilever lifting system, which solves the problems that the existing wellhead tool moving operation on a drill floor and the requirements on technology and cost are too high, the difficulty strength is high, the hydraulic control cantilever lifting system cannot be well adapted to severe working conditions, and the lifting weight in a safety range cannot be prompted for different lifting points of a cantilever.
In order to solve the technical problems, the invention adopts the following technical scheme: the hydraulic control cantilever lifting system comprises a telescopic arm and a basic arm, wherein the telescopic arm is arranged in the basic arm in a sliding manner, a bearing column is arranged on the lower side of the telescopic arm, the bearing column is connected with a connecting seat through a driving rotary supporting device, the connecting seat is connected with a derrick upper body through a fixing seat, and a hydraulic winch assembly is arranged on the lower side of the fixing seat;
Still include first assembly pulley and second assembly pulley, first assembly pulley is located the telescopic boom, and the second assembly pulley is located the spandrel post, is connected with wire rope on the hydraulic winch subassembly, and wire rope winds respectively on second assembly pulley and first assembly pulley.
In the preferred scheme, drive gyration strutting arrangement includes the fluted disc, and the fluted disc is fixed on the spandrel post, and the spandrel post is worn to establish in the connecting seat, and the meshing of fluted disc one side is connected with the worm, and the worm is fixed on the connecting seat, and the tip of worm is equipped with hydraulic motor.
In the preferred scheme, the connecting seat includes the connecting column body, has set firmly the ring flange on the connecting column body, and the intermediate position of ring flange runs through and is equipped with the mounting hole, and the tip of spandrel post is worn to establish in the mounting hole, and the upper portion of ring flange is equipped with the spacer, and the spacer passes through third screw and spacing connection, is equipped with the ladder counter bore on the spacer, and the fluted disc is located the ladder counter bore, and the worm is located the ring flange.
In the preferred scheme, ring flange one side is equipped with the dog, and the spandrel post lateral wall symmetry is equipped with two spacing touch panels.
In the preferred scheme, the basic arm comprises an outer shell, a cavity is arranged in the outer shell, a first slideway is arranged at the bottom of the cavity, two second slideways are arranged at two sides of the cavity in parallel, a through hole and a control box are arranged at the upper part of the outer shell, and a motor assembly is arranged in the through hole in a penetrating manner;
the motor assembly comprises a gear, the gear is connected with the telescopic arm in a meshed manner, a transmission shaft is arranged on the gear in a penetrating manner, the transmission shaft is positioned in the through hole, the upper part of the transmission shaft is connected with a motor, a fixing plate is arranged on the motor, and the fixing plate is fixed with the outer shell through a first screw;
the upper part of the outer shell is also provided with a limiting groove, a limiting frame is detachably connected in the limiting groove, and the limiting frame is used for limiting the telescopic arm.
In the preferred scheme, flexible arm includes the arm body, and the upper portion of arm body is equipped with the rack, and rack and gear engagement are connected, and the lower part of arm body is equipped with the boss, boss and first slide sliding connection, and the both sides parallel of arm body are equipped with two slides, and the slide is slided and is established in the second slide, and the arm body still is equipped with the limiting plate in one side that the slide is close, and the height of limiting plate is higher than the height of arm body.
In the preferred scheme, be equipped with the recess in the boss, evenly distributed has a plurality of cylinder rollers in the recess, and the cylinder roller slides and establishes in first slide.
In the preferred scheme, a plurality of indicator lamps are oppositely arranged on two sides of the outer shell, a plurality of contact plates are oppositely arranged on the inner side of the cavity, the contact plates are electrically connected with the contact rods, a plurality of contact rods are oppositely arranged on two sides of the telescopic arm, and the heights of the contact rods are matched with the contact plates.
In the preferred scheme, two first braking pieces are oppositely arranged on two sides of the cavity, two second electromagnetic braking pieces are oppositely arranged on the outer sides of the telescopic arms, and the heights of the second electromagnetic braking pieces and the first braking pieces are matched.
In the preferred scheme, the spacing includes the supporter, and the intermediate position of supporter is equipped with the draw-in groove, and supporter both sides symmetry respectively are equipped with two otic placodes, and the otic placode passes through second screw and shell body to be fixed.
The beneficial effects of the invention are as follows: the telescopic boom is arranged in the basic boom, the whole application range is wider, and multiple limiting and braking measures are adopted, so that the safety and stability of the telescopic boom in the running process are ensured. The driving rotation supporting device drives the basic arm and the telescopic arm to rotate clockwise or anticlockwise, mechanical limiting and stopping can be realized under the limiting action of the matched stop block, the basic arm can monitor the extending position of the telescopic arm in the telescopic arm stretching process, meanwhile, the lifting weight of the telescopic arm is indicated, the whole safety and high efficiency in lifting are ensured, the actuating mechanism and the braking limiting device of the telescopic arm are arranged inside the basic arm, the influence of the environment and the temperature on each part in the working in a severe environment is avoided, and the whole safety is ensured.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic left-hand view of the present invention;
FIG. 3 is a schematic view of the operation of the stop and limit touch panel of the present invention;
FIG. 4 is a schematic diagram of the operation of the drive slewing bearing of the present invention;
FIG. 5 is a schematic view of the overall structure of the basic arm of the present invention;
FIG. 6 is a schematic top view of a base arm of the present invention;
FIG. 7 is a schematic cross-sectional view of the base arm A-A of the present invention;
FIG. 8 is a schematic view of the overall structure of the telescopic boom of the present invention;
FIG. 9 is a schematic view of the basic arm and telescoping arm of the present invention in operation;
FIG. 10 is a schematic view of the basic arm and telescoping arm of the present invention in a second operational state;
FIG. 11 is a schematic left-hand view of FIG. 9;
fig. 12 is a schematic view of the whole structure of the limit bracket of the present invention.
In the figure: a telescopic arm 1; an arm body 101; a slide plate 102; a limiting plate 103; a groove 104; a cylindrical roller 105; a touch lever 106; a second electromagnetic brake pad 107; a rack 108; a boss 109; a lifting opening 110; a base arm 2; an outer case 201; a cavity 202; a first slide 203; a second slide 204; a contact plate 205; an indicator light 206; a control box 207; a limit groove 208; a through hole 209; a first brake pad 210; driving the slewing bearing 3; a toothed disc 301; a worm 302; a hydraulic motor 303; a connecting seat 4; a flange 401; a mounting hole 402; a spacer 403; a connecting cylinder 404; a spacing disc 405; a stepped counterbore 406; a third screw 407; a fixing seat 5; a first pulley block 6; a motor assembly 7; a motor 701; a drive shaft 702; a gear 703; a fixing plate 704; a first screw 705; a hydraulic winch assembly 8; a stopper 9; a limit touch plate 10; a derrick upper body 11; a limiting frame 12; a support 1201; a card slot 1202; ear plate 1203; a second screw 1204; a bearing column 13; a second pulley block 14; a wire rope 15; a cover plate 16.
Detailed Description
As shown in fig. 1-12, a hydraulic control cantilever lifting system comprises a telescopic arm 1 and a basic arm 2, wherein the telescopic arm 1 is slidably arranged in the basic arm 2, a bearing column 13 is arranged on the lower side of the telescopic arm 1, the bearing column 13 is connected with a connecting seat 4 through a driving rotary supporting device 3, the connecting seat 4 is connected with a derrick upper body 11 through a fixing seat 5, and a hydraulic winch assembly 8 is arranged on the lower side of the fixing seat 5;
The hydraulic winch assembly 8 is connected with a steel wire rope 15, and the steel wire rope 15 is respectively wound on the second pulley block 14 and the first pulley block 6. One side of the telescopic boom 1 is provided with a hoisting opening 10, the first pulley block 6 is positioned on the hoisting opening 10, one end of the basic boom 2 is connected with a cover plate 16 through a fastening nail, and a cooling fan is arranged in the cover plate 16, so that the structure is compact, a steel wire rope 15 can extend to a drilling floor surface after passing through the second pulley block 14 and the first pulley block 6 respectively, the rotary supporting device 3 is driven to control the rotation of the basic boom 2, the requirements of on-site working conditions and hoisting angles are met, the telescopic boom 1 stretches and contracts according to the position of a hoisting piece, the application range is wide, the fan on the cover plate 16 can work or stop according to the external environment, heat in the basic boom 2 is discharged when working, and the whole operation is stable and efficient.
In a preferred scheme, the driving rotary supporting device 3 comprises a fluted disc 301, the fluted disc 301 is fixedly arranged on the bearing column 13, the bearing column 13 is arranged in the connecting seat 4 in a penetrating mode, one side of the fluted disc 301 is connected with a worm 302 in a meshed mode, the worm 302 is fixedly arranged on the connecting seat 4, and a hydraulic motor 303 is arranged at the end portion of the worm 302. The structure is used for enabling the whole operation to be stable, the worm and gear structure formed by the worm 302 and the fluted disc 301 has good self-locking performance, the operation safety is guaranteed, the worm and gear transmission ratio is large, and the worm and gear structure rotates more smoothly under the heavy load of hoisting a weight.
In the preferred scheme, the connecting seat 4 includes connecting column 404, has set firmly ring flange 401 on the connecting column 404, and the intermediate position of ring flange 401 runs through and is equipped with mounting hole 402, and the tip of spandrel post 13 wears to establish in mounting hole 402, and the upper portion of ring flange 401 is equipped with the baffle 403, and the baffle 403 passes through third screw 407 and limiting plate 405 to be connected, is equipped with ladder counter bore 406 on the baffle 403, and fluted disc 301 is located ladder counter bore 406, and worm 302 is located on the ring flange 401. With this structure, the spacing plate 405 has the function of positioning the fluted disc 301 and the bearing post 13 and simultaneously spacing, and the baffle 403 provides space for smooth rotation of the fluted disc 301, so that the overall rigidity is good.
In a preferred scheme, a stop block 9 is arranged on one side of the flange 401, and two limit contact plates 10 are symmetrically arranged on the outer side wall of the bearing column 13. The limit touch plate 10 is installed above the limit disk 405, and an electromagnetic valve is installed on the limit touch plate 10. With this structure, when the basic arm 2 and the telescopic arm 1 rotate to a certain angle, the limit touch plate 10 touches the stop block 9, the electromagnetic valve is passively triggered, the sudden stop signal is immediately transmitted, and the control box 207 receives the signal at this time, so that the power end hydraulic station of the hydraulic motor 303 is cut off, the overall operation safety is ensured, and the response is efficient.
In a preferred solution, the basic arm 2 includes an outer housing 201, a cavity 202 is disposed in the outer housing 201, a first slide way 203 is disposed at the bottom of the cavity 202, two second slide ways 204 are disposed in parallel on two sides of the cavity 202, a through hole 209 and a control box 207 are disposed at the upper portion of the outer housing 201, and a motor assembly 7 is disposed in the through hole 209 in a penetrating manner;
The motor assembly 7 comprises a gear 703, the gear 703 is in meshed connection with the telescopic arm 1, a transmission shaft 702 is arranged on the gear 703 in a penetrating way, the transmission shaft 702 is positioned in the through hole 209, the upper part of the transmission shaft 702 is connected with a motor 701, a fixing plate 704 is arranged on the motor 701, and the fixing plate 704 is fixed with the outer shell 201 through a first screw 705;
The upper portion of the outer shell 201 is also provided with a limiting groove 208, a limiting frame 12 is detachably connected in the limiting groove 208, and the limiting frame 12 is used for limiting the telescopic boom 1. By this structure, the shell 201 of basic arm 2 provides the space of removal for flexible arm 1, simultaneously for flexible arm 1 provides sheltering from, first slide 203 and second slide 204 mutually support, play the spacing effect of two directions for flexible arm 1, guide flexible arm 1 simultaneously, motor assembly 7 then provides stable power supply for flexible arm 1, and motor 701 moment of torsion is big, stability is good, can efficient drive flexible arm 1 work, motor 701 has played the effect of first heavy protection, limit frame 12 then has restricted the range of movement of flexible arm 1, avoid flexible arm 1 to stretch out the distance overlength, lead to the roll or topple, limit frame 12 machinery is spacing, the guard action of second heavy has been played.
In the preferred scheme, the telescopic boom 1 includes the body 101, and the upper portion of body 101 is equipped with rack 108, and rack 108 and gear 703 meshing are connected, and the lower part of body 101 is equipped with boss 109, boss 109 and first slide 203 sliding connection, and the both sides parallel of body 101 are equipped with two slide 102, and slide 102 slide is established in second slide 204, and the body 101 still is equipped with limiting plate 103 near one side of body 101 apart from slide 102, and the height of limiting plate 103 is higher than the height of body 101. The size of the boss 109 is matched with the size of the first slideway 203, so that the telescopic arm 1 can rapidly move in the basic arm 2, the limiting plate 103 and the limiting frame 12 are matched with each other, the limiting frame 12 limits the moving range of the limiting plate 103, and the overall stability is ensured.
In a preferred embodiment, the boss 109 is provided with a groove 104, and a plurality of cylindrical rollers 105 are uniformly distributed in the groove 104, and the cylindrical rollers 105 are slidably disposed in the first slideway 203. With the structure, the sliding is more convenient and smooth, the abrasion is small under the whole friction force, and the service life is longer.
In a preferred embodiment, a plurality of indicator lamps 206 are disposed on two opposite sides of the outer housing 201, a plurality of contact plates 205 are disposed on the inner side of the cavity 202, the contact plates 205 are electrically connected with the contact rods 106, a plurality of contact rods 106 are disposed on two opposite sides of the telescopic arm 1, and the height of the contact rods 106 is matched with the contact plates 205. The base arm 2 is further provided with a stroboscopic lamp strip, the stroboscopic lamp strip corresponds to the position of the telescopic arm 1 relative to the base arm 1, when the distance between the lifting opening 10 of the telescopic arm 1 and the base arm 2 is larger, the stroboscopic lamp strip is higher in stroboscopic frequency, the positions of the indicator lamp 206 and the contact plate 205 are matched, the indicator lamp 206 corresponds to the relative position of the telescopic arm 1 sliding in the base arm 2, different positions correspond to different lifting weights, when the contact plate 205 is extruded, a circuit is connected, the indicator lamp 206 is on, the contact plate 205 adopts a staggered structure, the angle between the central axes of the upper contact rod 106 and the lower contact rod 106 is slightly larger than the slope of the central connecting line of the upper contact plate 205 and the lower contact plate 205, and therefore the structure ensures that when the contact rod 106 slides in the base arm 2 along with the telescopic arm 1, the indicator lamp 206 at different positions is on, the upper indicator lamp 206 and the lower indicator lamp 206 at the same side are on no matter what position the telescopic arm 1 is, and the different lifting weights correspond to different lifting weights, and therefore safety and high-efficiency of an operator can be prompted and a lifting operator can be ensured.
In a preferred embodiment, two first brake pads 210 are disposed opposite to each other on two sides of the cavity 202, two second electromagnetic brake pads 107 are disposed opposite to each other on the outer side of the telescopic arm 1, and the heights of the second electromagnetic brake pads 107 and the first brake pads 210 are matched. By means of the structure, the first brake block 210 and the second electromagnetic brake block 107 are matched, the telescopic arm 1 is fixed, the interval time of stopping the telescopic arm 1 relative to the basic arm 2 can be set as the condition that the enabling state of the first brake block 210 and the second electromagnetic brake block 107 triggers to be opened according to the use requirement, meanwhile, in the operation process, the operation controller is provided with the movable temporary cancel button and the long-time cancel button, namely, when the first brake block 210 and the second electromagnetic brake block 107 work, and when the telescopic arm 1 needs to be subjected to fine adjustment displacement for a short distance again, the position can be normally moved only by pressing the temporary cancel button, then the control box 207 sends out a brake signal again according to the set time interval parameter, the first brake block 210 and the second electromagnetic brake block 107 are triggered to work, when the telescopic arm 1 needs to be subjected to fine adjustment displacement for a long distance again, the long-time cancel button and the movable key-time cancel button are required to be pressed simultaneously, and when the movable key is moved, the brake cancel button is released, and then braking is immediately carried out.
In a preferred embodiment, the limiting frame 12 includes a supporting body 1201, a clamping groove 1202 is disposed in the middle of the supporting body 1201, two ear plates 1203 are symmetrically disposed on two sides of the supporting body 1201, and the ear plates 1203 are fixed to the outer casing 201 through second screws 1204. With the structure, the limiting frame 12 is convenient to use, has a good mechanical limiting effect, and is convenient to detach and maintain.
The above embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (8)
1. A hydraulic control cantilever lifting system is characterized in that: the telescopic device comprises a telescopic arm (1) and a basic arm (2), wherein the telescopic arm (1) is arranged in the basic arm (2) in a sliding manner, a bearing column (13) is arranged on the lower side of the telescopic arm (1), the bearing column (13) is connected with a connecting seat (4) through a driving rotary supporting device (3), the connecting seat (4) is connected with a derrick upper body (11) through a fixing seat (5), and a hydraulic winch assembly (8) is arranged on the lower side of the fixing seat (5);
The hydraulic winch comprises a hydraulic winch assembly (8), and is characterized by further comprising a first pulley block (6) and a second pulley block (14), wherein the first pulley block (6) is positioned on a telescopic arm (1), the second pulley block (14) is positioned on a bearing column (13), a steel wire rope (15) is connected to the hydraulic winch assembly (8), and the steel wire rope (15) is wound on the second pulley block (14) and the first pulley block (6) respectively;
The basic arm (2) comprises an outer shell (201), a cavity (202) is formed in the outer shell (201), a first slide way (203) is formed in the bottom of the cavity (202), two second slide ways (204) are arranged on two sides of the cavity (202) in parallel, a through hole (209) and a control box (207) are formed in the upper portion of the outer shell (201), and a motor assembly (7) is arranged in the through hole (209) in a penetrating mode;
The motor assembly (7) comprises a gear (703), the gear (703) is in meshed connection with the telescopic arm (1), a transmission shaft (702) is arranged on the gear (703) in a penetrating way, the transmission shaft (702) is positioned in the through hole (209), the upper part of the transmission shaft (702) is connected with a motor (701), a fixing plate (704) is arranged on the motor (701), and the fixing plate (704) is fixed with the outer shell (201) through a first screw (705);
the upper part of the outer shell (201) is also provided with a limit groove (208), a limit frame (12) is detachably connected in the limit groove (208), and the limit frame (12) is used for limiting the telescopic boom (1);
A plurality of indicator lamps (206) are oppositely arranged on two sides of the outer shell (201), a plurality of contact plates (205) are oppositely arranged on the inner side of the cavity (202), the contact plates (205) are electrically connected with the touch rods (106), a plurality of touch rods (106) are oppositely arranged on two sides of the telescopic arm (1), and the height of the touch rods (106) is matched with the contact plates (205);
the base arm (2) is also provided with a stroboscopic lamp strip, the stroboscopic lamp strip corresponds to the position of the telescopic arm (1) relative to the base arm (2), the contact plate (205) adopts a staggered structure, and the angle between the central axes of the upper contact rod (106) and the lower contact rod (106) is slightly larger than the slope of the central connecting line of the upper contact plate (205) and the lower contact plate.
2. The hydraulically controlled cantilever lifting system according to claim 1, characterized in that: the driving rotary supporting device (3) comprises a fluted disc (301), the fluted disc (301) is fixedly arranged on the bearing column (13), the bearing column (13) is arranged in the connecting seat (4) in a penetrating mode, one side of the fluted disc (301) is connected with a worm (302) in a meshed mode, the worm (302) is fixedly arranged on the connecting seat (4), and a hydraulic motor (303) is arranged at the end portion of the worm (302).
3. The hydraulically controlled cantilever lifting system according to claim 2, characterized in that: the connecting seat (4) comprises a connecting column body (404), a flange plate (401) is fixedly arranged on the connecting column body (404), a mounting hole (402) is formed in the middle position of the flange plate (401) in a penetrating mode, the end portion of the bearing column (13) is arranged in the mounting hole (402) in a penetrating mode, a separation plate (403) is arranged on the upper portion of the flange plate (401), the separation plate (403) is connected with a limiting plate (405) through a third screw (407), a stepped counter bore (406) is formed in the separation plate (403), the fluted disc (301) is located in the stepped counter bore (406), and the worm (302) is located on the flange plate (401).
4. A hydraulically controlled cantilever lifting system according to claim 3, characterized in that: one side of the flange plate (401) is provided with a stop block (9), and the outer side wall of the bearing column (13) is symmetrically provided with two limit contact plates (10).
5. The hydraulically controlled cantilever lifting system according to claim 1, characterized in that: the telescopic boom (1) comprises a boom body (101), a rack (108) is arranged on the upper portion of the boom body (101), the rack (108) is connected with a gear (703) in a meshed mode, a boss (109) is arranged on the lower portion of the boom body (101), the boss (109) is connected with a first slide way (203) in a sliding mode, two sliding plates (102) are arranged on two sides of the boom body (101) in parallel, the sliding plates (102) are arranged in a second slide way (204) in a sliding mode, a limiting plate (103) is arranged on one side, close to the sliding plates (102), of the boom body (101), and the height of the limiting plate (103) is higher than that of the boom body (101).
6. The hydraulically controlled cantilever lifting system according to claim 5, wherein: the boss (109) is internally provided with a groove (104), a plurality of cylindrical rollers (105) are uniformly distributed in the groove (104), and the cylindrical rollers (105) are slidably arranged in the first slide way (203).
7. The hydraulically controlled cantilever lifting system according to claim 1, characterized in that: two first brake blocks (210) are oppositely arranged on two sides of the cavity (202), two second electromagnetic brake blocks (107) are oppositely arranged on the outer sides of the telescopic arms (1), and the heights of the second electromagnetic brake blocks (107) and the first brake blocks (210) are matched.
8. The hydraulically controlled cantilever lifting system according to claim 1, characterized in that: the limiting frame (12) comprises a supporting body (1201), clamping grooves (1202) are formed in the middle of the supporting body (1201), two lug plates (1203) are symmetrically arranged on two sides of the supporting body (1201) respectively, and the lug plates (1203) are fixed with the outer shell (201) through second screws (1204).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111177638.9A CN113928986B (en) | 2021-10-09 | 2021-10-09 | Hydraulic control cantilever lifting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111177638.9A CN113928986B (en) | 2021-10-09 | 2021-10-09 | Hydraulic control cantilever lifting system |
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| CN113928986A CN113928986A (en) | 2022-01-14 |
| CN113928986B true CN113928986B (en) | 2024-08-09 |
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| CN202111177638.9A Active CN113928986B (en) | 2021-10-09 | 2021-10-09 | Hydraulic control cantilever lifting system |
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| CN118928653A (en) * | 2024-08-15 | 2024-11-12 | 广州文冲船厂有限责任公司 | Marine cranes and ships |
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