CN115341861B - Cage type pneumatic elevator - Google Patents
Cage type pneumatic elevator Download PDFInfo
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- CN115341861B CN115341861B CN202211264314.3A CN202211264314A CN115341861B CN 115341861 B CN115341861 B CN 115341861B CN 202211264314 A CN202211264314 A CN 202211264314A CN 115341861 B CN115341861 B CN 115341861B
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- 238000003825 pressing Methods 0.000 claims description 86
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000003139 buffering effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
- E21B19/06—Elevators, i.e. rod- or tube-gripping devices
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- Geochemistry & Mineralogy (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention belongs to the technical field of oil pipe elevators, and particularly relates to a cage type pneumatic elevator which comprises an elevator main body, wherein a jaw plate assembly is movably arranged in the elevator main body, a connecting rod assembly is arranged on one side of the elevator main body, a power cylinder is arranged between the connecting rod assembly and the elevator main body, the connecting rod assembly is hinged with the jaw plate assembly, the power cylinder drives the upper part of the connecting rod assembly to rotate, the upper part of the connecting rod assembly rotates to drive the jaw plate assembly to lift in the elevator main body, the inner wall of the elevator main body is wedge-shaped, the outer side surface of the jaw plate assembly is matched with the inner wall of the elevator main body, and a buffer assembly is arranged between the elevator main body and the upper part of the connecting rod assembly.
Description
Technical Field
The invention belongs to the technical field of oil pipe elevators, and particularly relates to a cage type pneumatic elevator.
Background
At present, an elevator is a special tool for lifting, suspending or descending a pipe column in petroleum drilling and production, and is a tool for lifting pipes such as drill pipes, oil pipes or casings. The existing oil pipe elevator is generally a crescent elevator, and is opened and closed back and forth by pulling an elevator crescent through an elevator handle.
However, the structure of the tubing elevator in the prior art is laborious to open or close manually.
Disclosure of Invention
The invention provides a cage type pneumatic elevator which is time-saving and labor-saving in a driving process by changing an elevator structure and pneumatically driving the elevator to be opened or closed.
The technical scheme of the invention is realized as follows: the utility model provides a pneumatic elevator of cage, including the elevator main part, the activity is provided with hubei province board assembly in the elevator main part, one side of elevator main part is provided with the connecting rod assembly, be provided with power cylinder between connecting rod assembly and the elevator main part, the connecting rod assembly is articulated with hubei province board assembly, power cylinder drive connecting rod assembly's upper portion rotates, the upper portion of connecting rod assembly rotates and drives hubei province board assembly and go up and down in the elevator main part, elevator main part inner wall is the wedge, the lateral surface of hubei province board assembly and elevator main part inner wall looks adaptation, be provided with the buffering assembly between the upper portion of elevator main part and connecting rod assembly.
As a preferred embodiment, the connecting rod assembly includes the support arm with elevator main part fixed connection, the support arm is the L type, the end that the support arm deviates from the elevator main part articulates and is provided with rotatory connecting rod, the one end that rotatory connecting rod deviates from the support arm articulates and is provided with the lifting connecting rod, one side that the lifting connecting rod deviates from rotatory connecting rod is articulated with hubei province board assembly, power cylinder's flexible end is articulated with rotatory connecting rod, the fixed extension roof beam that is provided with in one side of elevator main part lower part, power cylinder deviates from the one end of rotatory connecting rod and articulates with the extension roof beam.
As a preferred embodiment, the jaw plate assembly comprises a plurality of jaw plates, two adjacent jaw plates are hinged to each other, a torque spring is arranged between two connected jaw plates, the two ends of the torque spring are respectively abutted to the surfaces of the two adjacent jaw plates, a connecting block is fixedly arranged at the top of the middle jaw plate, the bottom of a lifting connecting rod is hinged to the connecting block, the outer side of the jaw plate is matched with the inner wall of the elevator body, a locking block is fixedly arranged on one side, deviating from the inner wall of the elevator body, of the jaw plate, the jaw plate is arc-shaped, and one side, deviating from the elevator body, of the locking block is arc-shaped.
As a preferred embodiment, the buffering assembly comprises a lifting column, one side of the lifting column penetrating out of the elevator main body is arranged, a buffering spring is sleeved on the outer side of the lifting column, the bottom end of the buffering spring is movably arranged in the elevator main body, limiting blocks are fixedly arranged at the top and the bottom of the lifting column respectively, the limiting block at the top is located above the elevator main body, and the limiting block at the bottom abuts against the surface of the elevator main body.
As a preferred embodiment, a circle of bottom plate is integrally arranged on one side of the lower portion of the elevator main body, the extension beam is arranged on one side of the bottom plate, a cover plate is detachably arranged on the top of the elevator main body, the rotary connecting rod is arranged above the top plate, a locking mechanism is arranged on the bottom plate, a through hole corresponding to the movable end of the locking mechanism is formed in the elevator main body, and the movable end of the locking mechanism is movably arranged in the through hole.
As a preferred embodiment, the surface of the elevator main body is fixedly provided with an installation block, the locking mechanism comprises a locking oil cylinder and a locking connecting rod, the movable end of the locking oil cylinder is hinged to the locking connecting rod, one end of the locking oil cylinder, which is far away from the locking connecting rod, is hinged to the installation block, one end of the locking oil cylinder, which is far away from the locking connecting rod, is movably provided with a pressing assembly, the pressing assembly penetrates through the through hole and is positioned in the elevator main body, a rotating shaft is fixedly arranged on the bottom plate, the locking connecting rod is in running fit with the rotating shaft, and a pressing plate matched with the pressing assembly is movably arranged in the elevator main body.
As a preferred embodiment, the locking connecting rod comprises a first connecting rod and a second connecting rod, the first connecting rod is hinged to the movable end of the locking oil cylinder, the second connecting rod is of a folding type, the rotating shaft is in rotating fit with the bending point of the second connecting rod, the first connecting rod and the second connecting rod are both located on the outer side of the elevator main body, and a clamping block is integrally arranged on one side of the first connecting rod opposite to the elevator main body.
As a preferred embodiment, one end of the second connecting rod, which is far away from the first connecting rod, is integrally provided with a third connecting rod, the third connecting rod is obliquely arranged on the second connecting rod, the pressing assembly is movably matched with the third connecting rod, and the included angle between the joint of the third connecting rod and the second connecting rod and the opposite side of the elevator main body is smaller than the included angle between the joint of the third connecting rod and the second connecting rod and the opposite side of the elevator main body.
As a preferred embodiment, a pushing cylinder is fixedly arranged on the bottom plate, the movable end of the pushing cylinder penetrates through the elevator main body and is fixedly connected with the pressing plate, the pressing assembly comprises a pressing block corresponding to the pressing plate, a screw rod is integrally arranged on one side, deviating from the pressing plate, of the pressing block, the screw rod penetrates out of the third connecting rod, a nut is connected to the screw rod through threads, one side, opposite to the pressing plate, of the pressing block is arc-shaped, and the pressing plate and the pressing block synchronously move relatively or move back to back.
In a preferred embodiment, an outer sleeve is fixedly arranged at the bottom of the elevator main body, a centering inner sleeve is movably arranged in the outer sleeve, a stabilizing bolt is detachably arranged between the outer sleeve and the centering inner sleeve, and the stabilizing bolt abuts against the centering inner sleeve.
After the technical scheme is adopted, the invention has the beneficial effects that:
the power cylinder drives the jaw plate assembly to move from the top of the elevator main body to the inside of the elevator main body through the connecting rod assembly, the jaw plate assembly gradually clamps an oil pipe along with the jaw plate assembly continuously moving downwards in the elevator main body, so that the clamping process of the oil pipe is realized, when the jaw plate assembly is driven by the pneumatic cylinder to move from the inside of the elevator main body to the top of the elevator main body, the inner diameter of the jaw plate assembly gradually increases until the jaw plate assembly increases to be separated from the surface of the oil pipe, so that the oil pipe is loosened, in the process, the elevator is closed to clamp the oil pipe or is opened to loosen the oil pipe, and the elevator is driven through the power cylinder after the elevator structure is changed, so that the elevator does not need to be manually opened or closed;
when the jaw plate assembly moves downwards to be positioned in the elevator main body, the width of the open end is gradually reduced, when the jaw plate assembly moves upwards, the width of the open end is increased, the clamped oil pipe is loosened, each jaw plate is provided with a locking block, when the jaw plate assembly clamps the oil pipe, the arc surface of each locking block is tightly attached to the surface of the oil pipe, and the locking process of the oil pipe is realized;
when the elevator is closed and the jaw plate assembly blocks the oil pipe, the telescopic end of the locking oil cylinder extends out to push the pressing block to move towards the pressing plate, and along with the fact that the distance between the pressing plate and the pressing block becomes close, the gap between the pressing block and the pressing plate and the pressure between the pressing block and the pressing plate, which are in surface contact with the oil pipe, become large, and secondary locking of the oil pipe is achieved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a top view of FIG. 1;
figure 3 is a schematic view of the jaw plate assembly;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of the locking mechanism engaged with the elevator body;
FIG. 6 isbase:Sub>A schematic cross-sectional view taken at A-A of FIG. 5;
figure 7 is a schematic view of the compression assembly of figure 6 inserted into the elevator body.
In the drawings, 1-an elevator body; 11-an extension beam; 12-a base plate; 121-a rotating shaft; 122-a push cylinder; 13-a cover plate; 14-a through hole; 15-mounting a block; 16-a compression plate; 17-an outer sleeve; 171-righting the inner sleeve; 172-stabilizing bolt; 2-jaw plate assembly; 3-a connecting rod assembly; 4-a power cylinder; 5-a buffer assembly; 6-a locking mechanism; 21-jaw plate; 22-a torque spring; 23-connecting blocks; 24-a locking block; 31-a support arm; 32-a rotating link; 33-lifting connecting rods; 51-a lifting column; 52-a buffer spring; 53-a stop block; 61-locking the oil cylinder; 62-locking connecting rod; 621-a first link; 6211-a cartridge; 622-second link; 623-a third connecting rod; 63-a compression assembly; 631-a compression block; 632-screw; 633-nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, a cage type pneumatic elevator comprises an elevator main body 1, a jaw plate assembly 2 is movably arranged in the elevator main body 1, a connecting rod assembly 3 is arranged on one side of the elevator main body 1, a power cylinder 4 is arranged between the connecting rod assembly 3 and the elevator main body 1, the connecting rod assembly 3 is hinged to the jaw plate assembly 2, the power cylinder 4 drives the upper portion of the connecting rod assembly 3 to rotate, the upper portion of the connecting rod assembly 3 rotates to drive the jaw plate assembly 2 to lift in the elevator main body 1, the inner wall of the elevator main body 1 is wedge-shaped, the outer side surface of the jaw plate assembly 2 is matched with the inner wall of the elevator main body 1, and a buffer assembly 5 is arranged between the elevator main body 1 and the upper portion of the connecting rod assembly 3.
The cross section of the elevator main body 1 is annular and the inside of the elevator main body is of a hollow structure, the jaw plate assembly 2 is movably arranged inside the elevator main body 1, one end, deviating from the connecting rod assembly 3, of the jaw plate assembly 2 is arranged in an open mode, the opening of the jaw plate assembly is enlarged or reduced along with the lifting of the jaw plate assembly 2, the part, located inside the elevator main body 1, of the jaw plate assembly 2 is annularly formed in an annular mode, when the jaw plate assembly 2 is located inside the elevator main body 1, the inner diameter of the annularly formed in the annular mode is smaller than the diameter of the annular mode, which is formed in the mode that the inner wall of the annular plate assembly is annularly formed, when the jaw plate assembly moves to the top of the elevator main body 1. One end of a connecting rod assembly 3 is fixed on the outer wall of an elevator main body 1, the non-movable end of a power cylinder 4 is hinged with the elevator main body 1, the movable end of the power cylinder 4 is hinged with the connecting rod assembly 3, the movable end of the power cylinder 4 extends out, then the upper portion of the connecting rod assembly 3 is pushed to rotate, one end of the connecting rod assembly 3 connected with a jaw plate assembly 2 is driven to move upwards, the jaw plate assembly 2 is driven to move upwards, when the power cylinder 4 drives the jaw plate assembly 2 through the connecting rod assembly 3, so that the jaw plate assembly 2 moves from the top of the elevator main body 1 to the inside of the elevator main body 1, as the inner wall of the elevator main body 1 is wedge-shaped, the jaw plate assembly 2 gradually fits with the inner surface of the elevator main body 1 when moving downwards, therefore, in the process that the jaw plate assembly 2 moves downwards in the elevator main body 1, the jaw plate assembly 2 is gradually smaller in the inside of the elevator main body 1, as the jaw plate assembly 2 continues to move downwards in the elevator main body 1, until the inner diameter of the elevator main body is reduced to be the same as the outer diameter of the elevator oil pipe, the elevator main body 1, the jaw plate assembly 2 is clamped, the oil pipe is clamped on the elevator main body, the oil pipe, and as the jaw plate assembly 2 is closed, the oil pipe is moved downwards, the elevator main body 2, the elevator main body 1, the elevator main body 2 continues to move, and the elevator main body 2 continues to clamp the elevator main body 1, and the elevator main body 2; when the jaw plate assembly 2 moves to the top of the elevator main body 1 from the inside of the elevator main body 1, the inner diameter of the jaw plate assembly 2 gradually becomes larger until the larger diameter is opened to be separated from the surface of an oil pipe, so that the oil pipe is loosened, in the process, the elevator is closed to clamp the oil pipe or open the elevator to loosen the oil pipe, the elevator structure is changed and the elevator is driven by the power cylinder 4, and therefore the elevator is not required to be manually opened or closed.
The connecting rod assembly 3 comprises a supporting arm 31 fixedly connected with the elevator main body 1, the supporting arm 31 is L-shaped, the end part of the supporting arm 31 departing from the elevator main body 1 is hinged with a rotating connecting rod 32, one end of the rotating connecting rod 32 departing from the supporting arm 31 is hinged with a lifting connecting rod 33, one side of the lifting connecting rod 33 departing from the rotating connecting rod 32 is hinged with the jaw assembly 2, the telescopic end of the power cylinder 4 is hinged with the rotating connecting rod 32, one side of the lower part of the elevator main body 1 is fixedly provided with an extension beam 11, one end of the power cylinder 4 departing from the rotating connecting rod 32 is hinged with the extension beam 11, the transverse section of the supporting arm 31 is fixedly connected with the elevator main body 1, the vertical section of the supporting arm 31 is arranged at an interval with the side wall of the elevator main body 1, when the jaw assembly 2 is driven by the power cylinder 4 to move out of the elevator main body 1 to realize opening of the elevator, the movable end of the power cylinder 4 extends out, one end of the rotating connecting rod 32 departing from the supporting arm 31 is pushed to have a tendency of circular motion, the hinged end of the rotating connecting rod 32 rotates around the top of the supporting arm 31 to become a circle center of the rotating connecting rod 32, the opening of the elevator main body, and the opening of the elevator main body moves upwards, and the elevator main body 1, and the elevator main body moves upwards; when the power cylinder 4 drives the jaw plate assembly 2 to move downwards from the top of the elevator main body 1 to the inside of the elevator main body 1, and the elevator is closed, the movable end of the power cylinder 4 contracts to push one end of the rotary connecting rod 32 deviating from the supporting arm 31 to have a tendency of circular motion, one end, hinged to the supporting arm 31, of the rotary connecting rod 32 rotates around the top of the supporting arm 31 to become the circle center of the circular motion of the rotary connecting rod 32, meanwhile, the telescopic end of the power cylinder 4 is in running fit with the rotary connecting rod 32, one end, deviating from the supporting arm 31, of the rotary connecting rod 32 moves downwards to drive the jaw plate assembly 2 to move downwards, the jaw plate assembly moves from the top of the elevator main body 1 to the inside of the elevator main body 1 and is matched with the wedge surface inside of the elevator main body 1, the inner diameter of the jaw plate assembly 2 gradually decreases, and the process of closing the elevator is achieved.
The jaw plate assembly 2 comprises a plurality of jaw plates 21, the outer side surfaces of the jaw plates 21 are matched with the shape of the inner wall of the elevator main body 1, two adjacent jaw plates 21 are hinged, a torque spring 22 is arranged between two connected jaw plates 21, two ends of the torque spring 22 are respectively abutted against the surfaces of the two adjacent jaw plates 21, a connecting block 23 is fixedly arranged at the top of the middle jaw plate 21, the bottom of a lifting connecting rod 33 is hinged with the connecting block 23, the outer side of the jaw plate 21 is matched with the inner wall of the elevator main body 1, a locking block 24 is fixedly arranged at one side of the jaw plate 21, which is far away from the inner wall of the elevator main body 1, the jaw plate 21 is arc-shaped, one side of the locking block 24, which is far away from the elevator main body 1, is arc-shaped integrally, the jaw plates 21 are arc-shaped, three jaw plates 21 are provided, wherein the radian of the middle jaw plate 21 is larger than the radians of the jaw plates 21 at two sides, the middle locking block 24 is located in the middle of the middle jaw plate 21, the distances between the locking blocks 24 on two sides and the middle locking block 24 are the same, the radians of the jaw plates 21 on two sides are the same, the central lines of the locking blocks 24 on two sides are located on one side of the central lines of the jaw plates 21 on two sides, which deviates from the central line of the middle jaw plate 21, one side of the jaw plates 21 on two sides, which deviates from the middle jaw plate 21, is a plane, the plane of the jaw plates 21 on two sides is relatively arranged to form an open end of the jaw plate assembly 2, when the jaw plate assembly 2 moves downwards to be located inside the elevator main body 1, the width of the open end is gradually reduced, when the jaw plate assembly 2 moves upwards, the width of the open end is increased, the clamped oil pipe is loosened, the locking blocks 24 are arranged on each jaw plate 21, when the jaw plate assembly 2 clamps the oil pipe, the arc-shaped surfaces of the locking blocks 24 are tightly attached to the surface of the oil pipe, and the locking process of the oil pipe is realized.
The buffer assembly 5 comprises a lifting column 51, the bottom end of the lifting column 51 penetrates out of one side of the elevator main body 1, a buffer spring 52 is sleeved outside the lifting column 51, the bottom end of the buffer spring 52 is movably arranged in the elevator main body 1, the top and the bottom of the lifting column 51 are respectively and fixedly provided with a limiting block 53, a first block body and a second block body are sequentially arranged on one side of the elevator main body 1 from top to bottom, a cylindrical first channel is arranged on the first block body, a cylindrical second channel is arranged on the second block body, the first channel and the second channel are coaxially arranged, the diameter of the first channel is larger than that of the second channel, the lower part of the buffer spring 52 is movably arranged in the first channel, the lifting column 51 sequentially penetrates through the inside of the buffer spring 52 and the second channel to penetrate out of the bottom of the second block body, the stopper 53 at the top and the bottom is respectively located the top of first block and the bottom of second block, through the setting of upper and lower stopper 53, avoid the lift post 51 to fall out from the second passageway, the stopper 53 at the top is located elevator main part 1 top, the stopper 53 at the bottom offsets with the surface of elevator main part 1, when jaw plate assembly 2 moves down, the bottom of rotatory connecting rod 32 pushes down buffering assembly 5 gradually, the bottom of rotatory connecting rod 32 contacts with the stopper 53 at the top of lift post 51, promote lift post 51 and move down in first passageway and second passageway, buffer spring 52 compresses in first passageway, realize the buffering of rotatory connecting rod 32, avoid its and elevator main part 1 rigid contact.
As shown in fig. 5-7, a circle of bottom plate 12 is integrally arranged on one side of the lower part of the elevator main body 1, the extension beam 11 is located on one side of the bottom plate 12, a cover plate 13 is detachably arranged on the top of the elevator main body 1, the rotating link 32 is located above the top plate, a locking mechanism 6 is arranged on the bottom plate 12, a through hole 14 corresponding to the movable end of the locking mechanism 6 is formed in the elevator main body 1, when the movable end of the locking mechanism 6 moves towards one side of the inner wall of the elevator departing from the through hole 14, the gap between the locking mechanism 6 and the inner wall of the elevator becomes smaller, so that the oil pipe clamped by the jaw plate assembly 2 is further locked.
The surface of the elevator main body 1 is fixedly provided with an installation block 15, the installation block 15 is fixedly arranged on the outer surface of the elevator main body 1, the locking mechanism 6 comprises a locking oil cylinder 61 and a locking connecting rod 62, the movable end of the locking oil cylinder 61 is hinged to the locking connecting rod 62, one end, deviating from the locking connecting rod 62, of the locking oil cylinder 61 is hinged to the installation block 15, one end, deviating from the locking connecting rod 62, of the locking oil cylinder 61 is movably provided with a pressing assembly 63, the pressing assembly 63 penetrates through a through hole 14 and is located in the elevator main body 1, a rotating shaft 121 is fixedly arranged on the bottom plate 12, the locking connecting rod 62 is in running fit with the rotating shaft 121, a pressing plate 16 matched with the pressing assembly 63 is movably arranged in the elevator main body 1, and the pressing assembly 63 is transversely arranged. The pressing plate 16 is movably arranged on the inner surface of the elevator main body 1, the pressing component 63 is positioned on the outer side of the elevator main body 1 and is positioned in the same plane with the pressing plate 16, the non-telescopic end of the locking oil cylinder 61 is hinged to the mounting block 15, the telescopic end of the locking oil cylinder 61 is hinged to the locking connecting rod 62, when the elevator closes the jaw assembly 2 to clamp an oil pipe, the telescopic end of the locking oil cylinder 61 extends out, the non-telescopic end of the locking oil cylinder 61 rotates at the mounting block 15, the telescopic end of the locking oil cylinder 61 is in rotating fit with the locking connecting rod 62, the telescopic end of the locking oil cylinder 61 extends out to push the locking connecting rod 62 to rotate around the rotating shaft 121, the pressing component 63 is pushed to move towards the pressing plate 16 in the through hole 14, meanwhile, the pressing plate 16 moves relative to the pressing component 63 under the pushing of the pushing air cylinder 122 and is in contact with the surface of the oil pipe clamped by the jaw assembly 2, and as the distance between the pressing plate 16 and the pressing component 63 becomes smaller, the pressure of the pressing component 63 and the pressing component 63 becomes larger, so as the oil pipe is locked by the elevator is closed, the pressing component 63 is locked secondarily locked; when the elevator opens the jaw plate assembly 2 to loosen the oil pipe, the telescopic end of the locking oil cylinder 61 contracts, the non-telescopic end of the locking oil cylinder 61 rotates at the installation block 15, the telescopic end of the locking oil cylinder 61 is in running fit with the locking connecting rod 62, the telescopic end of the locking oil cylinder 61 extends out to push the locking connecting rod 62 to rotate around the rotating shaft 121, the pressing component 63 is pulled to move towards the direction departing from the pressing component 16 in the through hole 14, the pushing air cylinder 122 pulls the pressing component 16 to move towards the direction departing from the pressing component 63 in the elevator main body 1, the gap between the pressing component 16 and the pressing component 63 is increased as the distance between the pressing component 16 and the pressing component 63 is increased, the pressure of the pressing component 63 and the pressing component 16 in contact with the surface of the oil pipe is reduced, the process of loosening the oil pipe is realized, and the oil pipe is loosened when the elevator is opened.
The locking connecting rod 62 comprises a first connecting rod 621 and a second connecting rod 622, the first connecting rod 621 is hinged to the movable end of the locking oil cylinder 61, the second connecting rod 622 is of a folding type, the rotating shaft 121 is in rotating fit with the bending point of the second connecting rod 622, the first connecting rod 621 and the second connecting rod 622 are both located on the outer side of the elevator main body 1, and a clamping block 6211 is integrally arranged on one side, opposite to the elevator main body 1, of the first connecting rod 621. One end of the second connecting rod 622 departing from the first connecting rod 621 is integrally provided with a third connecting rod 623, the third connecting rod 623 is obliquely arranged on the second connecting rod 622, the pressing component 63 is movably matched with the third connecting rod 623, and an included angle between the joint of the third connecting rod 623 and the second connecting rod 622 and one side, opposite to the elevator main body 1, is smaller than an included angle between the joint of the third connecting rod 623 and the second connecting rod 622 and one side, departing from the elevator main body 1. The bottom plate 12 is fixedly provided with a pushing cylinder 122, the movable end of the pushing cylinder 122 penetrates through the elevator main body 1 to be fixedly connected with the pressing plate 16, the pressing assembly 63 comprises a pressing block 631 corresponding to the pressing plate 16, a screw 632 is integrally arranged on one side of the pressing block 631, which is away from the pressing plate 16, the screw 632 penetrates through the third connecting rod 623 to be arranged, a nut 633 is in threaded connection with the screw 632, one side of the pressing block 631, which is opposite to the pressing plate 16, is arc-shaped, the pressing plate 16 and the pressing block 631 synchronously move relatively or oppositely, the center line of the pressing plate 16 in the horizontal direction, the center line of the pressing block 631 in the horizontal direction and one diameter of the elevator main body 1 coincide, so that the pressing plate 16 and the pressing block 631 synchronously move relatively or oppositely in the same plane.
When the elevator closes the jaw plate assembly 2 to clamp an oil pipe, the telescopic end of the locking oil cylinder 61 extends, the non-telescopic end of the locking oil cylinder 61 rotates at the mounting block 15, the telescopic end of the locking oil cylinder 61 is in rotating fit with the locking connecting rod 62, the telescopic end of the locking oil cylinder 61 extends to push the first connecting rod 621 to rotate, the first connecting rod 621 rotates to push the corner of the second connecting rod 622 to rotate around the rotating shaft 121, the third connecting rod 623 at the top of the second connecting rod 622 moves towards the center of the elevator main body 1, the screw 632 moves towards the compression plate 16 in the through hole 14 along with the movement of the third connecting rod 623 to push the compression block 631 to move towards the compression plate 16, and as the distance between the compression plate 16 and the compression block 631 becomes smaller, the pressure of the compression block 631 and the compression plate 16 in contact with the surface of the oil pipe becomes greater, so that the oil pipe is clamped more tightly when the elevator is closed; when the elevator opens the jaw plate assembly 2 to loosen the oil pipe, the telescopic end of the locking oil cylinder 61 contracts, the non-telescopic end of the locking oil cylinder 61 rotates at the mounting block 15, the telescopic end of the locking oil cylinder 61 contracts to pull the first connecting rod 621 to rotate, the first connecting rod 621 rotates to drive the second connecting rod 622 to rotate around the rotating shaft 121, the pressing block 631 is pulled to move in the through hole 14 towards the direction departing from the pressing plate 16, the distance between the pressing plate 16 and the pressing block 631 becomes larger as the distance between the pressing component 63 and the pressing plate 16 and the pressure of the surface contact of the oil pipe become smaller, the process of loosening the oil pipe is realized, the oil pipe is loosened when the elevator is opened, the matching position of the screw rod 632 and the third connecting rod 623 moves, the elevator can better adapt to oil pipes with different diameters, and is locked.
The bottom of the elevator main body 1 is fixedly provided with an outer sleeve 17, the inner part of the outer sleeve 17 is movably provided with a righting inner sleeve 171, a stabilizing bolt 172 is detachably arranged between the outer sleeve 17 and the righting inner sleeve 171, the stabilizing bolt 172 abuts against the righting inner sleeve 171, when the elevator is closed and the oil pipe is locked, the stabilizing bolt 172 adjusts the position of the righting inner sleeve 171 in the outer sleeve 17 to enable the inner sleeve to be coaxial with the oil pipe, and the locking mechanism 6 is positioned between the jaw plate assembly 2 and the outer sleeve 17.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The cage type pneumatic elevator is characterized by comprising an elevator main body (1), wherein a jaw plate assembly (2) is movably arranged in the elevator main body (1), a connecting rod assembly (3) is arranged on one side of the elevator main body (1), a power cylinder (4) is arranged between the connecting rod assembly (3) and the elevator main body (1), the connecting rod assembly (3) is hinged to the jaw plate assembly (2), the power cylinder (4) drives the upper part of the connecting rod assembly (3) to rotate, the upper part of the connecting rod assembly (3) rotates to drive the jaw plate assembly (2) to lift in the elevator main body (1), the inner wall of the elevator main body (1) is wedge-shaped, the outer side surface of the jaw plate assembly (2) is matched with the inner wall of the elevator main body (1), and a buffer assembly (5) is arranged between the elevator main body (1) and the upper part of the connecting rod assembly (3);
the connecting rod assembly (3) comprises a supporting arm (31) fixedly connected with the elevator main body (1), the supporting arm (31) is L-shaped, a rotating connecting rod (32) is hinged to the end portion, deviating from the elevator main body (1), of the supporting arm (31), a lifting connecting rod (33) is hinged to one end, deviating from the supporting arm (31), of the rotating connecting rod (32), one side, deviating from the rotating connecting rod (33), of the lifting connecting rod (33) is hinged to the jaw plate assembly (2), the telescopic end of the power cylinder (4) is hinged to the rotating connecting rod (32), an extension beam (11) is fixedly arranged on one side of the lower portion of the elevator main body (1), and one end, deviating from the rotating connecting rod (32), of the power cylinder (4) is hinged to the extension beam (11);
the jaw plate assembly (2) comprises a plurality of jaw plates (21), two adjacent jaw plates (21) are hinged, a torque spring (22) is arranged between two connected jaw plates (21), two ends of the torque spring (22) are respectively abutted against the surfaces of the two adjacent jaw plates (21), a connecting block (23) is fixedly arranged at the top of the middle jaw plate (21), the bottom of the lifting connecting rod (33) is hinged with the connecting block (23), the outer side of each jaw plate (21) is matched with the inner wall of the elevator main body (1), a locking block (24) is fixedly arranged on one side of each jaw plate (21) departing from the inner wall of the elevator main body (1), each jaw plate (21) is arc-shaped, and one side of each locking block (24) departing from the elevator main body (1) is arc-shaped;
the buffer assembly (5) comprises a lifting column (51), the bottom end of the lifting column (51) penetrates through one side of the elevator main body (1) to be arranged, a buffer spring (52) is sleeved on the outer side of the lifting column (51), the bottom end of the buffer spring (52) is movably arranged in the elevator main body (1), the top and the bottom of the lifting column (51) are respectively and fixedly provided with a limit block (53), the limit block (53) at the top is positioned above the elevator main body (1), and the limit block (53) at the bottom is abutted against the surface of the elevator main body (1);
one side an organic whole of elevator main part (1) lower part is provided with round bottom plate (12), extension beam (11) are located one side of bottom plate (12), the top of elevator main part (1) can be dismantled and be provided with apron (13), rotatory connecting rod (32) are located apron (13) top, bottom plate (12) department is provided with locking mechanism (6), set up on elevator main part (1) with through-hole (14) that locking mechanism (6) expansion end is corresponding, the expansion end activity of locking mechanism (6) sets up in through-hole (14).
2. The cage type pneumatic elevator according to claim 1, wherein a mounting block (15) is fixedly arranged on the surface of the elevator main body (1), the locking mechanism (6) comprises a locking oil cylinder (61) and a locking connecting rod (62), the movable end of the locking oil cylinder (61) is hinged to the locking connecting rod (62), one end, away from the locking connecting rod (62), of the locking oil cylinder (61) is hinged to the mounting block (15), a pressing assembly (63) is movably arranged at one end, away from the locking connecting rod (62), of the locking oil cylinder (61), the pressing assembly (63) penetrates through a through hole (14) and is located in the elevator main body (1), a rotating shaft (121) is fixedly arranged on the bottom plate (12), the locking connecting rod (62) is in running fit with the rotating shaft (121), and a pressing plate (16) matched with the pressing assembly (63) is movably arranged in the elevator main body (1).
3. The cage type pneumatic elevator according to claim 2, wherein the locking link (62) comprises a first link (621) and a second link (622), the first link (621) is hinged to the movable end of the locking cylinder (61), the second link (622) is folded, the bending point of the rotating shaft (121) and the bending point of the second link (622) are in rotating fit, the first link (621) and the second link (622) are both located on the outer side of the elevator main body (1), and a clamping block (6211) is integrally arranged on the side of the first link (621) opposite to the elevator main body (1).
4. The cage type pneumatic elevator according to claim 3, wherein a third connecting rod (623) is integrally arranged at one end of the second connecting rod (622) departing from the first connecting rod (621), the third connecting rod (623) is obliquely arranged on the second connecting rod (622), the pressing component (63) is movably matched with the third connecting rod (623), and the included angle between the joint of the third connecting rod (623) and the second connecting rod (622) and the side opposite to the elevator main body (1) is smaller than the included angle between the joint of the third connecting rod (623) and the second connecting rod (622) and the side of the elevator main body (1) departing from the elevator main body (1).
5. The cage type pneumatic elevator according to claim 4, wherein a pushing cylinder (122) is fixedly arranged on the bottom plate (12), the movable end of the pushing cylinder (122) penetrates through the elevator main body (1) and is fixedly connected with the pressing plate (16), the pressing assembly (63) comprises a pressing block (631) corresponding to the pressing plate (16), a screw (632) is integrally arranged on one side of the pressing block (631) departing from the pressing plate (16), the screw (632) penetrates through the third connecting rod (623), a nut (633) is in threaded connection with the screw (632), one side of the pressing block (631) opposite to the pressing plate (16) is arc-shaped, and the pressing plate (16) and the pressing block (631) synchronously move relative to each other or move away from each other.
6. A cage pneumatic elevator according to claim 1, wherein the elevator body (1) is fixedly provided at the bottom with an outer sleeve (17), the outer sleeve (17) is movably provided with a centering inner sleeve (171) inside, a stabilizing bolt (172) is detachably provided between the outer sleeve (17) and the centering inner sleeve (171), and the stabilizing bolt (172) abuts against the centering inner sleeve (171).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211264314.3A CN115341861B (en) | 2022-10-17 | 2022-10-17 | Cage type pneumatic elevator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211264314.3A CN115341861B (en) | 2022-10-17 | 2022-10-17 | Cage type pneumatic elevator |
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| CN115341861A CN115341861A (en) | 2022-11-15 |
| CN115341861B true CN115341861B (en) | 2023-02-03 |
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| CN213928286U (en) * | 2020-12-02 | 2021-08-10 | 江苏申利达机械制造有限公司 | Back-up tong that power tong short distance was pressed from both sides tightly |
| WO2022032707A1 (en) * | 2020-08-14 | 2022-02-17 | 南京钜力智能制造技术研究院有限公司 | Intelligent vertical mill device and grinding method thereof |
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|---|---|---|---|---|
| CN101737016A (en) * | 2009-12-29 | 2010-06-16 | 中国石油天然气集团公司 | Torque-withstanding drill pipe elevating device |
| CN104373061A (en) * | 2014-11-06 | 2015-02-25 | 中国石油大学(北京) | Rotary telescopic door mechanical elevator |
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|---|---|
| CN115341861A (en) | 2022-11-15 |
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