CN210396664U

CN210396664U - Vertical lifting device of workover rig

Info

Publication number: CN210396664U
Application number: CN201921180223.5U
Authority: CN
Inventors: 朱改新; 葛于国; 李昕; 季后元; 陈惠娟
Original assignee: Shanghai Lanshi Heavy Industry Machinery Co ltd
Current assignee: Shanghai Lanshi Heavy Industry Machinery Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-24
Anticipated expiration: 2029-07-25

Abstract

The utility model provides a workover rig vertical lift device, including derrick, wire rope, traveling block and elevator, the traveling block suspend in midair in through wire rope on the derrick, the traveling block can go up and down under wire rope's the drive, the elevator connect in the traveling block below, the elevator below is equipped with break-out device, its characterized in that: the lifting device is characterized by further comprising a hanging guide mechanism, wherein the hanging guide mechanism comprises one end connected with the upper shackle device, the other end of the hanging guide mechanism is tightened in a guide steel wire rope in the bundling device on the derrick, a centering rod is arranged on the elevator, a wire buckle is arranged on the centering rod, the guide steel wire rope penetrates into the wire buckle, the centering rod penetrates into the wire buckle and tightens the guide steel wire rope during use, the elevator can stably lift under the guide of the guide steel wire rope, and the problem that the oil pipe is difficult to align and deform and damage due to the fact that the elevator shakes is solved.

Description

Vertical lifting device of workover rig

Technical Field

The utility model relates to an oil recovery equips technical field, especially relates to a workover rig vertical lift device.

Background

Oil gas well needs regularly to go on taking out oil pipe and overhauls after working a period, and the maintenance work of oil pipe is accomplished by workover rig usually, and workover rig mainly includes hoisting device, goes up the break-out device, transfer device and rack, and the during operation hoisting device extracts out the pole pipe from the well head, goes up the break-out device and breaks out the pole pipe, and transfer device puts the pole pipe according to certain order on the rack, supplies the workman to overhaul the pole pipe in proper order. After the overhaul is finished, the rod pipe is transferred to the lifting device through the transfer device, the lifting device transfers the rod pipe, the upper shackle device carries out upper shackle on the rod pipe, and the whole set of flow of workover is completed. However, the current technical means have the following problems: the existing lifting device grabs an oil pipe through an elevator to control the oil pipe to ascend and descend, the elevator is suspended on a derrick through a steel wire rope and is easy to swing in the lifting process, so that the oil pipe is difficult to align when being fastened, and the oil pipe is easy to collide with a fastening device to cause deformation and damage when being fastened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a difficult wobbling workover rig vertical lift device is provided when elevator goes up and down to solve the not enough that prior art exists.

For solving the technical problem, the utility model discloses a following technical scheme:

the utility model provides a workover rig vertical lift device, includes derrick, wire rope, travelling block and elevator, the travelling block suspend in midair in through wire rope on the derrick, the travelling block can go up and down under wire rope's the drive, the elevator connect in the travelling block below, the elevator below is equipped with break-out device, its characterized in that: the derrick hoisting device is characterized by further comprising a hanging guide mechanism, wherein the hanging guide mechanism comprises a guide steel wire rope, one end of the guide steel wire rope is connected with the upper shackle device, the other end of the guide steel wire rope is tightened in the bundling device on the derrick, a centering rod is arranged on the elevator, a wire buckle is arranged on the centering rod, and the guide steel wire rope penetrates into the wire buckle.

By adopting the structure, the righting rod penetrates into the wire buckle and tightens the guide steel wire rope during use, so that the elevator can stably lift under the guide of the guide steel wire rope, and the problem that the oil pipe is difficult to align and deform and damage due to the shaking of the elevator is solved.

The utility model discloses an in the preferred embodiment, the derrick including articulate in the outer derrick of on-vehicle chassis afterbody with cup joint in interior derrick in the outer derrick, interior derrick can be followed stretch out or retract in the outer derrick, the top of interior derrick is equipped with the overhead traveling crane wheelset, wire rope one end is connected on the on-vehicle chassis, the other end walk around behind the overhead traveling crane wheelset with the touring car is connected. By adopting the structure, the steel wire rope driving travelling block can be driven by the lifting of the inner derrick to lift at the speed twice that of the inner derrick, and the lifting efficiency is higher.

The utility model discloses an among the preferred embodiment, still including locating play to rise the hydro-cylinder in the derrick, play to rise the hydro-cylinder including articulating in the first cylinder of outer derrick bottom and wearing to locate first piston rod in the interior derrick, the top of first piston rod with the roof of interior derrick is connected, has realized the lift of interior derrick from this.

The utility model discloses an among the preferred embodiment, still include first pneumatic cylinder, the one end of first pneumatic cylinder articulates on-vehicle chassis, and the other end articulates in the middle part of outer derrick. Therefore, the outer derrick can be erected or laid down, and vehicle-mounted transportation is facilitated.

The utility model discloses an in the preferred embodiment, the device is restrainted including locating the truckle of interior well frame top both sides with locate outer well frame top is close to the winch of truckle department, the truckle correspondence is located go up the shackle device directly over, direction wire rope walks around receive behind the truckle restraint in the winch. Therefore, the guide steel wire rope can be always in a tight state when the lifting device works.

The utility model discloses an in the preferred embodiment, the tourist car includes the footstock, articulate in the base of footstock below and coaxial arrangement in the semi-circular sheave of both sides around the footstock, wire rope total two strands just twine respectively on this sheave. Adopt such suspension structure to have from steady effect, can effectively reduce rocking of tourist bus.

The utility model discloses an in the preferred embodiment, the base is connected through the jib that is located both sides with the elevator, be equipped with the through-hole that has the jack catch on the elevator, the jack catch can be used for pressing from both sides the tight oil pipe that stretches into in the through-hole.

The utility model discloses an in the further improvement, still be equipped with limit baffle on the jib of both sides, limit baffle includes fixed plate and baffle, fixed plate rack connects on the jib of both sides, be equipped with on the fixed plate with the corresponding trompil in through-hole position, the baffle install in fixed plate top is sheltered from this trompil, has formed the cavity of placing that can supply the oil pipe top to stretch into from this, adopts such structure can play certain limiting displacement to oil pipe.

The utility model discloses a in the further improvement, the gyro wheel frame is arranged to the inner wall both sides of outer derrick, interval arrangement has the gyro wheel on the gyro wheel frame, be equipped with the spacing guide who supplies the gyro wheel to put into on the outer wall of interior derrick, can make going up and down in outer derrick of interior derrick in the same direction as smooth from this.

The utility model discloses a in the further improvement, the middle part of outer derrick still is equipped with the little of the mechanical hand of rightting that is used for supporting oil pipe and is used for carrying out the hoist and mount operation and hangs, and the mechanical hand of rightting can drive oil pipe at the elevator and lift the time and play the supporting role, avoids oil pipe to rock, hangs for a short time and can be used for assisting to hoist and mount and unload spiral-lock and put and other parts, improves the convenience.

So synthesize more than, the utility model has the advantages of stability is good, and work efficiency is high.

Drawings

The present invention will be further explained with reference to the following drawings:

fig. 1 is a rear view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a top view of a derrick according to the present invention;

FIG. 4 is an installation view of the traveling block and elevator of the present invention;

wherein: 100-derrick, 101-lifting oil cylinder, 102-first hydraulic cylinder, 103-vehicle chassis, 104-outer derrick, 105-inner derrick, 106-crown block, 107-first cylinder, 108-first piston rod, 109-roller frame, 110-limit guide rail, 111-inclined stay rope, 200-suspension guide mechanism, 201-small pulley, 202-winch, 203-guide steel wire rope, 204-centralizing rod, 205-wire buckle, 300-traveling block, 301-steel wire rope, 302-footstock, 303-base, 304-sheave, 305-suspension rod, 306-hoisting ring, 307-limit baffle, 308-fixing plate, 309-baffle, 400-elevator, 401-through hole, 402-jack catch, 500-centralizing manipulator, 501-longitudinal guide rail, 502-longitudinal movable arm, 503-transverse guide rail, 504-transverse movable arm, 505-clamping block, 600-small crane and 700-shackle device.

Detailed Description

The invention is further illustrated below by means of specific examples:

as shown in fig. 1 and 2, a vertical lifting device of a workover rig includes a lifting cylinder 101, a derrick 100, a first hydraulic cylinder 102, a crown block 106, a traveling block 300, an elevator 400, and a suspension guide mechanism 200.

As shown in fig. 3, the derrick 100 includes an outer derrick 104 hinged to the rear of the vehicle chassis 103 and an inner derrick 105 sleeved in the outer derrick 104, and the outer derrick 104 and the inner derrick 105 are of a truss structure to reduce weight while securing strength. A lifting cylinder 101 is provided in the derrick 100, the lifting cylinder 101 comprises a first cylinder 107 hinged to the bottom of the outer derrick 104 and a first piston rod 108 inserted into the inner derrick 105, and the top end of the first piston rod 108 is hinged to the top plate of the inner derrick 105, thereby enabling the inner derrick 105 to be driven to extend or retract from the outer derrick 104 by the lifting cylinder 101. Roller frames 109 are arranged on two sides of the inner wall of the outer derrick 104, rollers are arranged on the roller frames 109 at intervals, and a limiting guide rail 110 for placing the rollers is arranged on the outer wall of the inner derrick 105, so that the inner derrick 105 can be smoothly lifted in the outer derrick 104.

The first hydraulic cylinder 102 is hinged at one end to the middle of the vehicle-mounted chassis 103 and at the other end to the middle of the outer mast 104, so that the mast 100 can be driven to rise or fall.

A crown block wheelset 106 is provided at the top of the inner derrick 105. The traveling block 300 is suspended on the derrick 100 by a wire rope 301 bypassing the crown block wheel set 106, one end of the wire rope 301 is connected with the traveling block 300, and the other end is hinged on the vehicle-mounted chassis 103 after bypassing the crown block wheel set 106. With this structure, when the internal derrick 105 is raised and lowered, the carriage 300 can be raised and lowered at twice the raising and lowering rate of the internal derrick 105.

As shown in fig. 4, the traveling block 300 includes a top base 302, a base 303 longitudinally hinged below the top base 302, and semicircular sheaves 304 coaxially disposed on the front and rear sides of the top base 302, and the rope 301 shares two strands and is respectively wound around the sheaves 304. The suspension structure has a self-stabilizing effect, and the swinging of the traveling block 300 can be effectively reduced.

The base 303 is connected at both ends with hanger rods 305, the elevator 400 is connected to the traveling block 300 through the hanger rods 305, and the elevator 400 is provided with a through hole 401 having a jaw 402, and can be pulled out from the make-up device 700 by grasping the tubing through the jaw 402.

The two ends of the hanging rod 305 are provided with hanging rings 306, hanging buckles for placing the hanging rings 306 are arranged on the two sides of the base 303 and the elevator 400, and the hanging rings 306 and the hanging buckles are connected in a matched mode, so that the hanging device is more convenient to install and can bear larger swinging moment and is not easy to damage compared with a rigid connection mode.

The suspension rods 305 on two sides are also connected with a limiting baffle 307 in an erected mode, the limiting baffle 307 comprises a fixing plate 308 and a baffle 309, the fixing plate 308 is connected to the suspension rods 305 on two sides in an erected mode, the fixing plate 308 is provided with an opening corresponding to the position of the through hole of the elevator 400, the baffle 309 is installed above the fixing plate 308 through upright posts located at four corners and shields the opening, and therefore a placing cavity into which the top of an oil supply pipe can extend is formed. When grabbing oil pipe, the oil pipe top stretches into and places in the cavity, and claw 402 grasps oil pipe, makes oil pipe place more firm through placing the common limiting displacement of cavity and claw 402, avoids oil pipe swing in the elevator, and then has reduced the swing of elevator self.

In addition, it also includes a diagonal cable 111 connected to the top of the outer derrick 104 and the vehicle chassis 103 to support the derrick 100 when it is erected.

The hanging guide mechanism 200 comprises two small pulleys 201 arranged on two sides of the top of the inner derrick 105, a winch 202 arranged on the top of the outer derrick 104 and close to the small pulleys 201, a guide steel wire rope 203 wound on the small pulleys 201, a centralizing rod 204 arranged on two sides of the elevator 400, a wire buckle 205 arranged on the end of the centralizing rod 204, and a guide steel wire rope 203 penetrating into the wire buckle 205, wherein one end of the guide steel wire rope 203 is connected to two sides of the upper shackle device 700, and the other end of the guide steel wire rope 203 is wound in the winch 202 after passing around the small pulleys 201. When the elevator is used, the winch 202 is driven to tighten the guide steel wire rope 203, so that the guide effect can be achieved, and the elevator 400 is prevented from shaking in the operation process.

The middle part of the outer derrick 104 is also provided with a centralizing manipulator 500 and a small crane 600, the centralizing manipulator 500 comprises longitudinal guide rails 501 arranged at two sides of the outer derrick 104, longitudinal movable arms 502 arranged on the longitudinal guide rails 501, the longitudinal movable arms 502 can move forward or backward under the driving of hydraulic cylinders, transverse guide rails 503 arranged at the front ends of the longitudinal movable arms 502, and transverse movable arms 504 arranged on the transverse guide rails 503, the transverse guide rails 503 and the longitudinal guide rails 501 are vertically arranged, the front ends of the transverse movable arms 504 are provided with clamping blocks 505, and the clamping blocks 505 can move in opposite directions under the driving of the hydraulic cylinders so as to clamp and centralize oil pipes. The small crane 600 can be used for assisting in hoisting the shackle device 700 and other well servicing equipment so as to facilitate deployment and retraction operations.

It is above just the utility model discloses an overall structure, its working method flow is as follows: when the vehicle-mounted chassis 103 runs to a proper position in front of a wellhead, the supporting legs of the vehicle-mounted chassis 103 extend out to stably adjust the vehicle-mounted chassis 103; the first hydraulic cylinder 102 drives the derrick 100 to lift, the travelling block 300 and the elevator 400 are suspended on a steel wire rope 301 of the derrick 100, and the small crane 600 is operated to install the upper shackle device 700 on a well head in an auxiliary mode; and then, the guide steel wire ropes 203 on the suspension guide mechanism 200 are connected to the two ends of the upper shackle device 700 and tightened through the winches 202, and then the wire buckles of the elevator 400 penetrate into the guide steel wire ropes 203, so that the elevator can stably and smoothly lift under the guide effect of the guide steel wire ropes 203, and the problems that the oil pipe is deformed and damaged when the elevator swings and the oil pipe is difficult to align when the elevator is buckled are solved.

However, those skilled in the art should realize that the above embodiments are only for illustrative purposes and are not to be used as limitations of the present invention, and that changes and modifications to the above embodiments are intended to fall within the scope of the appended claims, as long as they fall within the true spirit of the present invention.

Claims

1. The utility model provides a workover rig vertical lift device, includes derrick (100), wire rope (301), traveling block (300) and elevator (400), traveling block (300) suspend in midair through wire rope (301) on derrick (100), traveling block (300) can go up and down under the drive of wire rope (301), elevator (400) connect in traveling block (300) below, elevator (400) below is equipped with break-out device (700), its characterized in that: the suspension guide mechanism (200) comprises one end connected with the upper shackle device (700) and the other end tightened on a guide steel wire rope (203) in the bundling device on the derrick (100), the elevator (400) is provided with a centering rod (204), the centering rod (204) is provided with a wire buckle (205), and the guide steel wire rope (203) penetrates into the wire buckle (205).

2. The workover rig vertical lift device of claim 1, wherein: the derrick (100) comprises an outer derrick (104) hinged to the tail of the vehicle-mounted chassis (103) and an inner derrick (105) sleeved in the outer derrick (104), the inner derrick (105) can extend out of or retract into the outer derrick (104), the top of the inner derrick (105) is provided with a crown block wheel set (106), one end of the steel wire rope (301) is connected to the vehicle-mounted chassis (103), and the other end of the steel wire rope is connected with the traveling block (300) after bypassing the crown block wheel set (106).

3. The workover rig vertical lift device of claim 2, wherein: the lifting oil cylinder (101) is arranged in the derrick (100), the lifting oil cylinder (101) comprises a first cylinder (107) hinged to the bottom of the outer derrick (104) and a first piston rod (108) penetrating the inner derrick (105), and the top end of the first piston rod (108) is connected with the top plate of the inner derrick (105).

4. The workover rig vertical lift device of claim 2, wherein: the hydraulic system further comprises a first hydraulic cylinder (102), one end of the first hydraulic cylinder (102) is hinged to the vehicle-mounted chassis (103), and the other end of the first hydraulic cylinder is hinged to the middle of the outer derrick (104).

5. The workover rig vertical lift device of claim 1, wherein: the bundling device comprises small pulleys (201) arranged on two sides of the top of the inner derrick (105) and a winch (202) arranged on the top of the outer derrick (104) and close to the small pulleys (201), the small pulleys (201) are correspondingly arranged right above the upper shackle device (700), and the guide steel wire rope (203) is bundled in the winch (202) after bypassing the small pulleys (201).

6. The workover rig vertical lift device of claim 1, wherein: the traveling block (300) comprises a top seat (302), a base (303) hinged below the top seat (302) and semicircular grooved wheels (304) coaxially arranged on the front side and the rear side of the top seat (302), wherein the steel wire rope (301) has two strands and is respectively wound on the grooved wheels (304).

7. The workover rig vertical lift device of claim 6, wherein: the base (303) is connected with an elevator (400) through hanger rods (305) positioned on two sides, a through hole (401) with a clamping jaw (402) is formed in the elevator (400), and the clamping jaw (402) can clamp an oil pipe extending into the through hole (401).

8. The workover rig vertical lift device of claim 7, wherein: the suspension rods (305) on two sides are further provided with limiting baffles (307), each limiting baffle (307) comprises a fixing plate (308) and a baffle (309), the fixing plates (308) are erected on the suspension rods (305) on two sides, the fixing plates (308) are provided with holes corresponding to the positions of the through holes (401), and the baffles (309) are installed above the fixing plates (308) and shield the holes.

9. The workover rig vertical lift device of claim 2, wherein: roller frames (109) are arranged on two sides of the inner wall of the outer derrick (104), rollers are arranged on the roller frames (109) at intervals, and a limiting guide rail (110) for the rollers to be placed in is arranged on the outer wall of the inner derrick (105).

10. The workover rig vertical lift device of claim 2, wherein: the middle part of the outer derrick (104) is also provided with a centralizing manipulator (500) for supporting an oil pipe and a small crane (600) for hoisting operation.