CN218579455U - Slip lifting device - Google Patents

Abstract

The application discloses slip hoisting device, including promoting the upset subassembly, it includes lifting arm, connecting rod, power unit and drive mechanism to promote the upset subassembly, and power unit sets up on the base, and the connecting rod symmetry sets up the both sides at the lifting arm, the afterbody both ends of lifting arm articulate on the base with the tip of both sides connecting rod respectively, drive mechanism includes the transmission piece and sets up the ball pivot in the transmission piece, and the both ends of transmission piece are connected with the afterbody of the connecting rod of lifting arm both sides is articulated respectively, the ball pivot rotates with the transmission piece through the connecting axle at both ends and is connected, power unit's output tip with the ball pivot is connected. The power mechanism and the transmission block are connected through the spherical hinge, a certain degree of freedom is formed between the power mechanism and the transmission block, and when the lifting device is used, and the power mechanism is subjected to component force perpendicular to the vector direction of the output force of the power mechanism, the component force perpendicular to the vector direction of the output force of the power mechanism can be eliminated through the degree of freedom, so that the service life of the power mechanism is prolonged.

Description

Slip lifting device

Technical Field

The application relates to the technical field of oil drilling, and specifically relates to a slip lifting device for lifting or lowering slips.

Background

Lifting devices are tools used to lower and raise slips in oil and gas drilling operations. When the slip is lowered, the slip clamps the clamped object, so that the clamped object can be prevented from falling under the action of gravity; when the slip is lifted up, the slip can be freely lifted or lowered after being loosened to be clamped. The slip mainly comprises slip sheets and slip tooth plates, the shape of the slip is a cone, the slip can be wedged in an inner hole of a slip seat, and the inner walls of a plurality of slip sheets surround to form a hole matched with the shape and the size of a clamped object.

When a clamped object is required to be clamped by the slips, the slips are placed into the slip seat by the lifting device, the clamped object penetrates through a round hole formed by enclosing the inner wall of the slip sheet, slip teeth on the inner wall are contacted with the outer wall of the clamped object, and under the action of the gravity of the clamped object and the matching action of the conical surface of the inner wall of the slip seat and the conical surface of the outer wall of the slips, the slip teeth tightly hold the clamped object to prevent the clamped object from falling; when the slips are required to release a clamped object, the lifting device pulls the slips in the slip seat upwards, and the slips are pulled and spread outwards at the same time, so that the clamped object is released.

At present, most slips hoisting device's power unit is cylinder or pneumatic cylinder basically, and power unit is connected with link mechanism, utilizes link mechanism to realize the promotion or the transferring of slips through the lifting arm on transmitting the thrust of power component to the lifting arm. In the use process of the slip lifting device, under certain conditions, the output end part of the power mechanism of the lifting device can be subjected to component force perpendicular to the vector direction of the output force of the power mechanism, and the service life of the power mechanism of the lifting device can be greatly shortened after the power mechanism of the lifting device is used.

Disclosure of Invention

In order to solve the problems and deficiencies in the prior art, the application aims to provide a slip lifting device capable of prolonging the service life of a power mechanism.

In order to achieve the above object, the technical solution of the present application is as follows:

the utility model provides a slip hoisting device, is including promoting the upset subassembly, it includes lifting arm, connecting rod, power unit and drive mechanism to promote the upset subassembly, and power unit is fixed to be set up on the base, and the connecting rod symmetry sets up the both sides at the lifting arm, the afterbody both ends of lifting arm respectively with the end connection of the connecting rod of both sides, the junction articulates on the base, the connecting rod of lifting arm and both sides can rotate around the pin joint on the base, drive mechanism includes the transmission piece and sets up the ball pivot in the transmission piece, the both ends of transmission piece respectively with the afterbody articulated connection of the connecting rod of lifting arm both sides, the ball pivot rotates with the transmission piece through the connecting axle at both ends and is connected, power unit's output tip with the ball pivot is connected.

Preferably, the lifting arm comprises a lifting arm body and supporting rods symmetrically arranged on two sides of the lifting arm body, two ends of the tail of the lifting arm body are respectively connected with the end parts of the supporting rods on the two sides, the joint is hinged to the base, the lifting arm body and the supporting rods on the two sides can rotate around a hinged joint on the base, and the tail of each supporting rod is hinged to the end part of the corresponding side connecting rod.

Preferably, a transmission block guide mechanism is arranged on the base, the transmission block guide mechanisms are symmetrically arranged on two sides of the transmission mechanism and mainly comprise guide plates, strip-shaped grooves are formed in the guide plates, guide shafts are respectively arranged on the left side and the right side of each transmission block, and the guide shafts on the two sides are arranged in the strip-shaped grooves of the corresponding side guide plates in a sliding mode.

Preferably, the power mechanism comprises a cylinder, and the end part of a piston rod of the cylinder is fixedly connected with the spherical hinge.

Preferably, the power mechanism comprises a hydraulic cylinder, and the end part of a piston rod of the hydraulic cylinder is fixedly connected with the spherical hinge.

Preferably, the lifting device further comprises a braking mechanism, the braking mechanism is symmetrically arranged on two sides of the transmission mechanism, the braking mechanism comprises a braking plate and a braking handle, an accommodating hole is formed in the braking plate, an eccentric wheel is arranged in the accommodating hole, the braking handle is connected with the eccentric wheel through a braking shaft, and the braking plate is arranged on the guide plate in a sliding mode and can reciprocate relative to the guide plate and towards the strip-shaped groove in the guide plate.

Preferably, the guide plate is provided with an installation groove, the installation groove is communicated with the strip-shaped groove, and the brake plate is arranged in the installation groove in a sliding manner.

Preferably, a sealing cover is arranged on the base, a closed accommodating space is formed between the base and the sealing cover, the connecting rod, the supporting rod, the power mechanism, the transmission block guide mechanism and the brake plate are arranged in the accommodating space formed by the base and the sealing cover, the lifting arm body is arranged outside the accommodating space and is connected with the supporting rod through a rotating shaft arranged on the sealing cover, and the brake handle extends out of the accommodating space through the brake shaft.

Preferably, a tension spring connected with the slip is arranged on the lifting arm body.

The beneficial effect of this application:

(1) In this application, power unit's output tip passes through the ball pivot structure and is connected with the transmission piece, and the ball pivot structure makes and produces certain degree of freedom between power unit's output tip and the transmission piece, and this degree of freedom can offset the torsion of the perpendicular to output tip that power unit output tip received to improve hoisting device power unit's life, and finally improve hoisting device's whole life.

(2) In this application, the both ends of transmission piece are provided with the deflector, are provided with bar groove structure on the deflector, are provided with the guiding axle on the transmission piece, and the guiding axle slides and sets up the bar inslot. Firstly, the deflector of both sides plays the effect of spacing direction to the driving block, can restrict the driving block towards appointed direction reciprocating motion, and the strip groove on the deflector can give the certain degree of freedom of driving block again simultaneously.

(3) In this application, hoisting device still is provided with arrestment mechanism, is in when transferring the position or lifting the position at hoisting device, and arrestment mechanism can put the position or lift the position with hoisting device locking under, prevents the incident that the maloperation caused.

(4) In this application, the lifting arm still is connected with the slips through the extension spring, therefore hoisting device when carrying the position, can pull open left lamella of slips and right lamella, still offset simultaneously slips upper end because of the forerake that gravity leads to, make the slips can smoothly loosen or hold tightly by the face of cylinder of centre gripping thing.

(5) In this application, hoisting device's power unit sets up in the sealed accommodation space that bottom plate and sealed cowling formed, can play protection and anti-pollution effect to power unit, further improves power unit's life.

Drawings

The foregoing and following detailed description of the present application will become more apparent when read in conjunction with the following drawings, wherein:

FIG. 1 is a schematic view of a slip lifting apparatus according to the present application;

FIG. 2 is a schematic view of the internal structure of FIG. 1 with the sealing cap removed;

FIG. 3 is a top view of a slip lifting apparatus according to the present application;

FIG. 4 is a schematic view of the internal structure of FIG. 3 with the sealing cap removed;

FIG. 5 is a side view of the slip lifting apparatus of the present application with the seal housing removed;

fig. 6 is a cross-sectional view taken along line C-C of fig. 5.

In the figure:

1. a base; 2. lifting the turnover assembly; 3. a lift arm; 4. a connecting rod; 5. a power mechanism; 6. a transmission mechanism; 7. a drive block guide mechanism; 8. a guide shaft; 9. a brake mechanism; 11. mounting grooves; 12. a tension spring; 13. a sealing cover; 14. a connecting shaft; 31. a lift arm body; 32. a support bar; 41. a first link; 42. a second link; 61. a transmission block; 62. spherical hinge; 71. a guide plate; 72. a strip-shaped groove; 91. a brake plate; 92. a brake handle; 93. an eccentric wheel; 94. and a brake shaft.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions for achieving the objects of the present application will be further described below by using several specific examples, and it should be noted that the technical solutions claimed in the present application include, but are not limited to, the following examples. All other embodiments obtained by a person skilled in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.

Example 1

Slips hoisting device realizes the structure that the slips promoted or transferred, and what traditional well drilling in-process took out the brill and adopted is that traditional portable three lamella slips carries out the seat card, has intensity of labour big, wastes time and energy, and the security is poor, the inefficiency scheduling problem, carries out the shortcoming that the slips promoted to traditional portable mode, pneumatic slips and slips hoisting device have appeared on the market and have been used for solving this problem.

At present, most slips hoisting device's power unit is cylinder or pneumatic cylinder basically, and power unit is connected with link mechanism, utilizes link mechanism to transmit power unit's thrust to the lifting arm on, finally realizes the promotion or the transferring of slips through the lifting arm. In the use process of the slip lifting device, under certain conditions, the output end part of the power mechanism of the lifting device can be subjected to component force perpendicular to the vector direction of the output force of the power mechanism, and the service life of the power mechanism of the lifting device can be greatly shortened after the power mechanism of the lifting device is used.

Based on this, this embodiment has proposed a slips hoisting device in the life of improvement device power part, and this hoisting device gives certain degree of freedom between the two through set up the ball pivot structure between power unit output end and transmission piece, and this degree of freedom can eliminate the torsion of the perpendicular to output end that power unit output end received to improve hoisting device power unit's life.

The embodiment discloses a slip lifting device, which is shown in the attached figures 1-6 of the specification and comprises a base 1, wherein a lifting and overturning assembly 2 for lifting or lowering slips is arranged on the base 1, the base 1 is arranged on a slip seat through a fixing bolt, and when the lifting device is not used, the lifting device can be taken down from the slip seat; the lifting and overturning component 2 mainly comprises lifting arms 3, connecting rods 4 and power mechanisms 5, wherein the power mechanisms 5 are fixedly arranged on the base 1, the number of the connecting rods 4 is two, the two connecting rods are symmetrically arranged on two sides of the lifting arms 3, the end parts of the lifting arms 3 are connected with slips through the connecting rods, two ends of the tail parts of the lifting arms 3 are respectively connected with the end parts of the connecting rods 4 on two sides, the connecting parts are hinged on the base 1, the lifting arms 3 and the connecting rods 4 on two sides can rotate in a vertical plane around the centers (namely hinge joints) of the hinge joints on the base 1, the other ends of the two connecting rods 4 symmetrically arranged are connected with the power mechanisms 5 through one transmission mechanism 6, the connecting rods 4 on two sides are driven by the same power mechanism 5 to realize synchronous motion, the thrust generated by the power mechanisms 5 is transmitted to the connecting rods 4 on two sides by the transmission mechanism 6, the connecting rods 4 transmit power to the lifting arms 3 again, the lifting arms 3 rotate around the hinge joints on the base 1, the lifting arms 3 act on the slips, and finally realize lifting or lowering of the slips. Specifically, the transmission mechanism 6 includes a transmission block 61 and a spherical hinge 62 disposed in the transmission block 61, two ends of the transmission block 61 are respectively connected to the other end of the connecting rod 4 on the corresponding side, the transmission block 61 is provided with a mounting hole, the spherical hinge 62 is accommodated in the mounting hole, the upper and lower ends of the spherical hinge 62 are both fixedly provided with a connecting shaft 14, the connecting shaft 14 is rotatably connected to the transmission block 61, the spherical hinge 62 and the transmission block 61 have a degree of freedom in the horizontal plane, the two can rotate in the horizontal plane by using the connecting shaft 14 as an axis, the output end of the power mechanism 5 is fixedly connected to the spherical hinge 62, and the power mechanism 5 drives the transmission block 61 to reciprocate along the length direction of the base 1.

In this embodiment, it should be noted that the power mechanism 5 is a cylinder, and a piston rod end of the cylinder is fixedly connected to the spherical hinge 62. The fixed connection can be that the end part of the piston rod is provided with an external thread, the spherical hinge is provided with a threaded hole, and the two are fixedly connected in a threaded connection mode; the end of the piston rod can also be integrally formed with a spherical hinge to realize fixed connection, and the fixed connection modes are many and will not be described herein.

In this embodiment, it should be further described that the lifting arm 3 is composed of a lifting arm body 31 and support rods 32 symmetrically disposed on two sides of the lifting arm body 31, an end of the lifting arm body 31 is connected with the slip, two ends of a tail of the lifting arm body 31 are respectively connected with ends of the support rods 32 on two sides through a rotating shaft, the rotating shaft is disposed on the base 1, and a tail of the support rod 32 is hinged to an end of the connecting rod 4 on a corresponding side. When the lifting device is used, the connecting rod 4 drives the supporting rod 32 to rotate, and under the action of the supporting rod 32, the rotating shaft connecting the supporting rod 32 and the lifting arm body 31 rotates, so that the lifting arm body 31 is driven to rotate in a vertical plane.

The power direct action of power unit output end portion output is on drive mechanism, promote drive mechanism and move forward towards the direction of slips, the connecting rod synchronous motion of drive mechanism both sides, the connecting rod of both sides is with power transmission to the bracing piece on, the bracing piece rotates, and then drive the axis of rotation with this body coupling of lifting arm and rotate, under the effect of axis of rotation, the lifting arm body is at vertical in-plane rotation, thereby mention the slips that this body end coupling of lifting arm upwards in the slip seat, during power unit reverse motion, then realize putting down of slips. When the lifting device is used, when the output end part of the power mechanism is subjected to component force in a direction perpendicular to the output force vector of the power mechanism, for example, a slip is not concentric with a slip seat, and after the slip deviates from a connecting rod, the transmission mechanism can be subjected to corresponding torsion action.

Therefore, this application is in order to reduce hoisting device when using, because power unit output end receives the component force of perpendicular to power unit output force vector direction, and the damage that brings power unit to reduce power unit's the condition of life, in this embodiment, improved drive mechanism's structure, power unit's output end is provided with the ball pivot structure, and the ball pivot setting is in the drive block, and the upper and lower both ends of ball pivot set up the connecting axle, and this connecting axle rotates with the drive block to be connected, has certain degree of freedom between ball pivot and the drive block. When the output end part of the power mechanism is subjected to component force perpendicular to the vector direction of the output force of the power mechanism, the spherical hinge is rotatably connected with the transmission block through the connecting shaft, so that the transmission block can rotate for a certain angle in a horizontal plane by taking the connecting shaft as a rotating shaft, and the torsion force applied to the transmission block cannot be transmitted to the output end part of the power mechanism through the spherical hinge.

Example 2

The present embodiment discloses a slip lifting device, and the difference between the present embodiment and embodiment 1 is that the power mechanism 5 is a hydraulic cylinder.

Example 3

The embodiment discloses a slip lifting device, and the difference between this embodiment and embodiment 1 or embodiment 2 lies in that power unit 5 is servo motor, and when 5 servo motor of power unit, servo motor's output end sets up a screw rod, corresponds on the ball pivot 62 and sets up the screw hole, and the other end setting of screw rod is in the screw hole, realizes through lead screw drive's mode that drive block 61 makes reciprocating motion along base 1's length direction.

Example 4

The embodiment discloses a slip lifting device, and referring to fig. 2 and fig. 4-6 of the specification, on the basis of any of the above embodiments, a transmission block guide mechanism 7 is arranged on a base 1, the transmission block guide mechanisms 7 are symmetrically arranged on two sides of a transmission mechanism 6, and comprise guide plates 71, a strip-shaped groove 72 is formed in each guide plate 71, guide shafts 8 are respectively arranged on the left side and the right side of a transmission block 61, and the guide shafts 8 are slidably arranged in the strip-shaped grooves 72 of the corresponding side guide plates 71; further, the guiding axle 8 runs through bar groove 72 extends to the outside of bar groove 72, with the connection of the afterbody that corresponds side connecting rod 4, the afterbody of connecting rod 4 rotates and sets up on the guiding axle 8, can use guiding axle 8 to rotate as the pivot.

In this embodiment, it should be noted that, in order to achieve the reciprocating motion of the transmission block 61 along the designated direction, but with a certain degree of freedom in the horizontal plane, a small-amplitude rotation can be generated in the horizontal plane relative to the ball hinge 62, the gap between the transmission block 61 and the two side guide plates 71 is small, and the end surface of the transmission block 61 facing the guide plates 71 is configured in a circular arc shape.

Example 5

The embodiment discloses a slip lifting device, and with reference to fig. 2-5 in the specification, on the basis of embodiment 4, the slip lifting device is further provided with a braking mechanism 9, the braking mechanism 9 is symmetrically arranged on two sides of the transmission mechanism 6, the braking mechanism 9 comprises a braking plate 91 and a braking handle 92, a receiving hole is formed in the braking plate 91, an eccentric 93 is arranged in the receiving hole, the eccentric 93 can rotate in the receiving hole, the braking handle 92 is connected with the eccentric 93 through a braking shaft 94, and the braking plate 91 is mounted on the guide plate 71 on the corresponding side and can reciprocate relative to the guide plate 71 towards the strip-shaped groove 72 on the guide plate 71. The brake handle 92 is pressed down, and under the effect of eccentric wheel 93, brake plate 91 is towards bar groove 72 downstream, and is disconnected with bar groove 72 circle, and guide shaft 8 can't be at bar inslot 72 normal motion to consequently lead to lifting arm 3 can't upwards lift or below, realize the effect of braking locking, prevent unexpected lift or transfer the slips and cause unnecessary incident.

Further, the brake plate 91 is provided with an installation groove 11, the installation groove 11 is communicated with the strip-shaped groove 72, and the brake plate 91 is slidably arranged in the installation groove 11.

In this embodiment, it should be noted that there are many ways for the braking plate 91 to be slidably disposed in the mounting groove 11, for example, the braking plate and the mounting groove are in clearance fit to realize sliding, and for example, the connection way of the sliding grooves of the sliding block is also used, and details are not repeated herein.

In this embodiment, the braking mechanisms on both sides of the transmission mechanism are connected through a transmission shaft, specifically, the transmission shaft is connected with the braking plates on both sides, so as to realize the effect of synchronous movement of the braking mechanisms on both sides.

Example 6

The embodiment discloses a slip lifting device, refer to description figure 1, on the basis of any one of the above embodiments, be provided with sealed cowling 13 on the base 1, form inclosed accommodation space between base 1 and the sealed cowling 13, connecting rod 4, bracing piece 32, power unit 5, drive mechanism 6, driving block guiding mechanism 7 and brake plate 91 all set up in above-mentioned accommodation space, lift arm body 31 is located outside the accommodation space, and brake handle 92 of brake mechanism 9 extends to outside the accommodation space through brake axle 94, the axis of rotation that sets up on sealed cowling 13 is passed through to the afterbody of lift arm body 31, is connected with bracing piece 32 in the accommodation space. In the embodiment, the power mechanism 5 is arranged in the sealed accommodating space formed by the bottom plate 1 and the sealing cover 13, so that the power mechanism 5 can be protected and prevented from pollution, and the service life of the power mechanism 5 is further prolonged.

Furthermore, a tension spring 12 connected with the slip is further arranged on the lifting arm body 31. When the tension spring 12 lifts the slip on the lifting device, the left slip flap and the right slip flap can be smoothly pulled open, and meanwhile, the forward inclination of the upper end of the slip caused by gravity is offset, so that the slip can be smoothly loosened or tightly hold the cylindrical surface of a clamped object.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing the present application and for simplicity in description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.

In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly and can include, for example, fixed connections, detachable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

The foregoing is directed to embodiments of the present invention, which are not limited thereto, and any simple modifications and equivalents thereof according to the technical spirit of the present invention may be made within the scope of the present invention.

Claims (9)

1. The utility model provides a slips hoisting device, is including promoting upset subassembly (2), promote upset subassembly (2) including lifting arm (3), connecting rod (4) and power unit (5), power unit (5) set up on base (1), and connecting rod (4) symmetry sets up the both sides in lifting arm (3), the afterbody both ends of lifting arm (3) articulate on base (1) with the tip of both sides connecting rod (4) respectively, and connecting rod (4) of lifting arm (3) and both sides can rotate around the pin joint, its characterized in that still includes drive mechanism (6), drive mechanism (6) include transmission piece (61) and set up ball pivot (62) in transmission piece (61), the both ends of transmission piece (61) articulate with the afterbody of connecting rod (4) of lifting arm (3) both sides respectively and are connected, ball pivot (62) rotate with transmission piece (61) through connecting axle (14) at both ends and are connected, the output tip of power unit (5) with ball pivot (62) are connected.

2. A slip lifting device according to claim 1, wherein the lifting arm (3) comprises a lifting arm body (31) and support rods (32) symmetrically arranged at two sides of the lifting arm body (31), two ends of the tail part of the lifting arm body (31) are respectively connected with the end parts of the support rods (32) at two sides, the connection part is hinged on the base (1), and the tail part of the support rod (32) is hinged with the end part of the connecting rod (4).

3. A slip lifting device according to claim 1, wherein a transmission block guide mechanism (7) is arranged on the base (1), the transmission block guide mechanism (7) comprises a guide plate (71), a strip-shaped groove (72) is arranged on the guide plate (71), a guide shaft (8) is arranged on the transmission block (61), and the guide shaft (8) is slidably arranged in the strip-shaped groove (72) of the guide plate (71).

4. A slip lifting device according to claim 1, wherein the power mechanism (5) comprises a cylinder, the end of the piston rod of which is fixedly connected to the ball joint (62).

5. A slip lifting device according to claim 1, wherein the power mechanism (5) comprises a hydraulic cylinder, the end of the piston rod of which is fixedly connected to the ball joint (62).

6. A shoe lifting device according to claim 3, characterized in that it further comprises a braking mechanism (9), said braking mechanism (9) comprising a braking plate (91) and a braking handle (92), the braking plate (91) being provided with a receiving hole in which an eccentric (93) is arranged, the braking handle (92) being connected to the eccentric (93) by means of a braking shaft (94), said braking plate (91) being arranged on the guiding plate (71) and being able to reciprocate relative to the guiding plate (71) towards the strip-shaped groove (72) on the guiding plate (71).

7. A slip lifting device according to claim 6, wherein the guiding plate (71) is provided with a mounting groove (11), the mounting groove (11) is communicated with the strip-shaped groove (72), and the braking plate (91) is slidably arranged in the mounting groove (11).

8. A slip lifting device according to any one of claims 6-7, wherein a sealing cover (13) is provided on the base (1), a sealed accommodating space is formed between the base (1) and the sealing cover (13), the connecting rod (4), the supporting rod (32), the power mechanism (5), the transmission mechanism (6), the transmission block guide mechanism (7) and the braking plate (91) are disposed in the accommodating space formed by the base (1) and the sealing cover (13), the lifting arm body (31) is disposed outside the accommodating space, is connected with the supporting rod (32) through a rotating shaft provided on the sealing cover (13), and the braking handle (92) extends out of the accommodating space through the braking shaft (94).

9. A slip lifting device according to any of claims 1-7, wherein the lifting arm (3) is provided with a tension spring (12) connected to the slip.

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