Crane-free translation device of automatic oil pipe conveyor

Abstract

The utility model discloses a crane-free translation device of an automatic oil pipe conveyor, which is characterized in that four corners of the automatic oil pipe conveyor are respectively provided with a lifting support leg, the outer sides of the lower parts of four upright posts close to the four corners are symmetrically welded with fixed seats, the outer end of each fixed seat is respectively welded with a positioning cylinder, the middle section of each positioning cylinder is respectively provided with an insertion hole, and each insertion hole is provided with an insertion hole; the axis of each positioning cylinder insertion hole is parallel to the ground; an adjusting cylinder is inserted into each positioning cylinder, a through adjusting cylinder insertion hole is formed in each adjusting cylinder, and a bolt is inserted into the positioning cylinder insertion hole and the adjusting cylinder insertion hole to fix the adjusting cylinder in the positioning cylinder; the bottom of each adjusting cylinder is fixedly connected with a pulley supporting lug with a downward opening, the lower end of each pulley supporting lug is provided with a rolling wheel, each rolling wheel is supported on a shifting guide rail, and the shifting guide rails are symmetrically located on the two sides of the automatic oil pipe conveyor in the width direction, are parallel to each other and are supported on the ground. According to the device, the front-back and left-right translation of the conveyor can be conveniently completed by manpower under the condition that no crane exists.

Description

Technical Field

[0001] The utility model relates to a workover equipment for oil and water wells in oil and gas fields, in particular to an automatic tubing conveyor crane-free translation device, belonging to the technical field of oilfield workover machinery. Background Art

[0002] The weight of the automatic tubing conveyor used in the minor workover operation of the oilfield is 2-3 tons, and it is equipped with four manually operated or screw-type outriggers that can adjust the height. Before the operation, the outriggers can be adjusted to adapt to the uneven ground to ensure the overall stability of the conveyor. When in use, the front end of the conveyor slide is aligned with the wellhead. When tripping tubing, the conveyor undertakes the work of transporting and connecting and releasing the tubing to the wellhead. When tripping sucker rods, since the sucker rod body is relatively soft, the conveyor cannot transport, connect and release it, and the conveyor needs to be moved 80-100 cm away. A passage for manual transportation of the sucker rod needs to be vacated at the original position where the conveyor was placed.

[0003] In addition, in the process of pulling tubing, after the tubing falls into the conveyor slide, the tail of the pipe will impact the conveyor, causing the conveyor to move backward. Long-term use will cause the conveyor to move backward too far, resulting in the front end of the slide not being able to connect the pipe, and the conveyor needs to be moved forward to restore the original position.

[0004] The conveyor only has the functions of height and horizontal adjustment, and does not have its own translation device. Due to its self-weight of 2-3 tons, it cannot be translated by manpower. At present, the well site is laid with an anti-seepage membrane according to environmental protection requirements, and forced translation will damage the anti-seepage membrane, causing oil pollution to leak to the ground and resulting in non-compliance with environmental protection standards. Therefore, when translation is required in the above use, it can only be achieved with the cooperation of a crane. Using a crane increases the operation cost, and the use of oilfield cranes is carried out crosswise. It takes about 1-2 hours to arrive at the site when needed, which affects the operation construction progress and efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the problems existing in the prior art and provide an automatic tubing conveyor crane-free translation device, which can easily complete the front-back, left-right translation of the automatic tubing conveyor by manpower without a crane in the well site, and can protect the anti-seepage membrane of the well site.

[0006] To solve the above technical problems, a crane-free translation device for an automated oil pipe conveyor of the present utility model is provided. Lifting legs are respectively arranged at the four corners of the automated oil pipe conveyor. Four conveyor columns are symmetrically arranged near the four corners. Fixed seats extending outward are symmetrically welded to the outer sides of the lower parts of the conveyor columns. Positioning cylinders are respectively welded to the outer ends of the fixed seats. Through positioning cylinder insertion holes are respectively arranged in the middle sections of the positioning cylinders. The axes of the positioning cylinders are perpendicular to the ground, and the axes of the positioning cylinder insertion holes are parallel to the ground. Adjusting cylinders are respectively inserted into the positioning cylinders. Through adjusting cylinder insertion holes are respectively arranged on the adjusting cylinders. A pin is inserted into the positioning cylinder insertion hole and the adjusting cylinder insertion hole to fix the adjusting cylinder in the positioning cylinder. The bottom parts of the adjusting cylinders are respectively fixedly connected with pulley lugs with downward openings. Roller wheels are respectively installed at the lower ends of the pulley lugs. The roller wheels respectively support on the displacement guide rails. The displacement guide rails are symmetrically located on both sides in the width direction of the automated oil pipe conveyor, are parallel to each other and supported on the ground.

[0007] Further, the displacement guide rails are short oil pipe joints, and the roller wheels are concave roller wheels.

[0008] Further, two groups of cross-shaped positioning cylinder insertion holes are arranged on the corresponding positioning cylinders.

[0009] Further, two groups or more than two groups of adjusting cylinder insertion holes parallel to each other in the height direction are arranged on the corresponding adjusting cylinders.

[0010] Further, two groups or more than two groups of adjusting cylinder insertion holes distributed in a cross shape are arranged on the corresponding adjusting cylinders.

[0011] Further, adjusting cylinder top covers are respectively fixed to the top parts of the adjusting cylinders, and handle assemblies are respectively fixed to the adjusting cylinder top covers.

[0012] Further, each handle assembly respectively includes a handle bottom plate and a handle welded to the upper end face of the handle bottom plate. The centers of the handle bottom plates are respectively fixed to the corresponding adjusting cylinder top covers through screws and lock nuts.

[0013] Further, each pulley lug respectively includes a channel steel with a downward opening. Connecting plates extending downward are respectively fixed to the outer walls on both sides of the channel steel. The two ends of the roller shaft of the corresponding roller wheel are respectively fixed to the lower ends of the corresponding connecting plates.

[0014] Further, the connecting plates are in a stepped shape with a wider upper part and a narrower lower part. A pair of connecting plate fixing holes corresponding to the channel steel through holes on the side wall of the channel steel are arranged on the upper parts of the connecting plates. A stud passes through the connecting plate fixing holes and the channel steel through holes, and the two ends fix the connecting plates to the corresponding channel steel walls through nuts.

[0015] Further, bearings are respectively installed in the counterbored holes at both ends of the roller. The inner rings of the bearings respectively abut against the shoulders of the roller shaft, and retaining rings are respectively arranged between the inner rings of the bearings and the inner walls of the corresponding connecting plates. Both ends of each roller shaft respectively pass through the connecting plate shaft holes at the centers of the lower parts of the connecting plates and are locked by roller shaft nuts.

[0016] Further, one end of the bolt has a head larger than the aperture of the positioning cylinder jack, the other end has a tapered head, and a locking pin hole perpendicular to the axis of the bolt is provided at a position close to the tapered head.

[0017] Compared with the prior art, the utility model has achieved the following beneficial effects: For an automated tubing conveyor with a very large self-weight, it can be manually translated without a crane. For single-well operations, the crane cost is saved by 4,000 yuan, and the construction time is saved by about 1-2 hours; manual translation is light and labor-saving, and the horizontal thrust of each of the three people translating on-site is 18-27 Kg; and it will not damage the anti-seepage membrane of the well site. Description of the Drawings

[0018] The following further details the present utility model in conjunction with the drawings and specific embodiments. The drawings are only provided for reference and illustration, and are not intended to limit the present utility model.

[0019] Figure 1 It is the front view of the automated tubing conveyor crane-free translation device before translation in the present utility model;

[0020] Figure 2 It is Figure 1 the left view;

[0021] Figure 3 It is the front view of the translation mechanism of the present utility model when moving forward and backward;

[0022] Figure 4 It is the perspective view of the translation mechanism of the present utility model when moving left and right;

[0023] Figure 5 It is the perspective view of the translation mechanism of the present utility model when moving forward and backward;

[0024] Figure 6 It is Figure 4 the exploded view;

[0025] Figure 7 It is the front view of the translation mechanism of the present utility model;

[0026] Figure 8 It is Figure 7 the sectional view;

[0027] In the figure: 1. Automatic tubing conveyor; 1a. Lifting leg; 1b. Conveyor column; 2. Fixed seat; 3. Positioning cylinder; 3a. Positioning cylinder jack; 4. Adjusting cylinder; 4a. Adjusting cylinder jack; 5. Pin; 5a. Lock pin hole; 6. Channel steel; 7. Connecting plate; 8. Roller; 8a. Roller shaft; 8b. Bearing; 9. Retaining ring; 10. Stud; 11. Shifting guide rail; 12. Handle base plate; 13. Handle. Detailed implementation mode

[0028] In the following description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating that the device must have a specific orientation.

[0029] In order to make the technical means, creative features, achieved purposes and effects realized by the present invention easy to understand, the present invention will be further described below in conjunction with specific drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

[0031] As Figures 1 to 8 shown, the automatic tubing conveyor 1 is used to convey tubing to the wellhead, and lifting legs 1a are respectively provided at four corners thereof, and the automatic tubing conveyor 1 is integrally lifted or lowered through the lifting legs 1a. Four conveyor columns 1b are symmetrically provided at positions near the four corners of the automatic tubing conveyor 1, and translation mechanisms are respectively fixed on the four conveyor columns 1b for the translation of the automatic tubing conveyor 1.

[0032] The specific method is as follows: Fixed seats 2 extending outward are symmetrically connected to the outer sides of the lower parts of the conveyor columns 1b. The bottom plates of the fixed seats 2 are directly welded to the outer walls of the conveyor columns 1b. The two vertical plates of the fixed seats 2 are parallel to each other and symmetrically extend outward in the width direction of the conveyor. Positioning cylinders 3 are respectively welded to the outer ends of the fixed seats 2. Through positioning cylinder jacks 3a are respectively provided in the middle sections of the positioning cylinders 3. The axes of the positioning cylinders 3 are perpendicular to the ground, and the axes of the positioning cylinder jacks 3a are parallel to the ground. Two groups of positioning cylinder jacks 3a arranged in a cross shape can be provided on the corresponding positioning cylinders 3 for the pin 5 to select and use.

[0033] Each positioning cylinder 3 is respectively inserted with an adjusting cylinder 4. Each adjusting cylinder 4 is respectively provided with a through adjusting cylinder jack 4a. The adjusting cylinder jack 4a can be provided with two or more groups parallel to each other in the height direction of the corresponding adjusting cylinder 4, which is convenient for the pin 5 to select the adjusting cylinder jacks 4a at different heights.

[0034] The adjusting cylinder jacks 4a are provided with two or more groups distributed in a cross shape on the corresponding adjusting cylinder 4, which is convenient for changing the direction of the roller 8.

[0035] One end of the pin 5 is provided with a head larger than the aperture of the positioning cylinder jack. The other end is provided with a tapered head. A locking pin hole 5a perpendicular to the axis of the pin is provided near the tapered head. The pin 5 is guided by the tapered head to insert into the positioning cylinder jack 3a and the adjusting cylinder jack 4a to fix the adjusting cylinder 4 in the positioning cylinder 3. The exposed locking pin hole 5a is inserted with a split pin to prevent the pin 5 from slipping off.

[0036] The bottom of each adjusting cylinder 4 is respectively fixedly connected with a pulley support ear opening downward. The lower ends of the pulley support ears are respectively installed with rollers 8. Each roller 8 is respectively supported on the displacement guide rail 11. The displacement guide rails 11 are symmetrically located on both sides in the width direction of the automatic tubing conveyor 1, are parallel to each other and supported on the ground.

[0037] The tubing nipple on site is used as the displacement guide rail 11. The outer diameter of the tubing nipple is Φ78mm and the length is 1.5 - 2.5 meters. The roller 8 is a concave roller. The concave radius of the concave roller is slightly larger than the radius of the tubing nipple to ensure that it can be embedded in the tubing nipple and reduce the contact area on the premise of reliable support.

[0038] Each pulley support ear respectively includes a channel steel 6 opening downward. The outer walls on both sides of each channel steel 6 are respectively fixed with connecting plates 7 extending downward. The two ends of the roller shaft 8a of the corresponding roller 8 are respectively fixed at the lower ends of the corresponding connecting plates 7.

[0039] The connecting plate 7 is in a stepped shape with a wider upper part and a narrower lower part. A pair of connecting plate fixing holes are provided in the upper part of each connecting plate 7 corresponding to the channel steel through holes on the side wall of the channel steel. The stud 10 passes through the connecting plate fixing holes and the channel steel through holes, and the two ends are fixed on the corresponding channel steel wall by nuts.

[0040] Bearings 8b are respectively installed in the counterbored holes at both ends of the roller 8 to reduce the frictional resistance. The inner rings of the bearings 8b respectively abut against the shoulders of the roller shaft 8a. The bearings 8b have double-sided dust-proof rings and self-lubricating and maintenance-free functions. Retaining rings 9 are respectively provided between the inner rings of the bearings 8b and the inner walls of the corresponding connecting plates 7; the two ends of each roller shaft 8a respectively pass through the connecting plate shaft holes at the centers of the lower parts of the connecting plates 7 and are locked by roller shaft nuts.

[0041] At the top of each adjusting cylinder 4, an adjusting cylinder top cover is respectively fixed, and a handle assembly is respectively fixed on each adjusting cylinder top cover. Each handle assembly respectively includes a handle bottom plate 12 and a handle 13 welded to the upper end surface of the handle bottom plate 12. A screw without a head is welded at the center of the adjusting cylinder top cover. The centers of each handle bottom plate 12 are respectively sleeved on the screw and tightened with nuts, and the handle bottom plate 12 can be fixed on the corresponding adjusting cylinder top cover. The adjusting cylinder 4 and the tool can be lifted and carried through the handle 13.

[0042] When the automated tubing conveyor 1 needs to be moved forward, the conveyor is lifted by using the lifting legs 1a of the conveyor itself, and the tubing stub is placed under the rollers as the shifting guide rail 11. The four shifting guide rails 11 are parallel to each other and point to the direction where the conveyor needs to be translated. Then the rollers 8 are lowered to the working position; then the lifting legs 1a contract to make the conveyor descend, so that each roller 8 respectively lands on the shifting guide rail 11, and the lifting legs 1a are continuously retracted to make them suspended. The automated tubing conveyor 1 is completely supported by the rollers 8 on the shifting guide rail 11, and at this time, the conveyor can be manually pushed to make it translate.

[0043] After the translation is in place, the lifting legs 1a land again and lift, so that the rollers 8 are separated from the shifting guide rail 11, and the shifting guide rail 11 is taken out. The original parking position of the conveyor is used as the manual conveying channel for the sucker rod.

[0044] When the position of the conveyor needs to be adjusted in the left-right direction, each adjusting cylinder 4 can be rotated by 90°, the orientation of each roller 8 is changed, and the same steps as above are taken to realize the adjustment of the position of the conveyor in the left-right direction. In this way, with the tools on site and manual pushing, the conveyor can be translated in the four directions of left, right, front and back.

[0045] The above is only the preferred feasible embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. It is not intended to limit the patent protection scope of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. Except for the above embodiments, without departing from the spirit and scope of the present invention, the present invention can also have other implementation manners. The present invention will also have various changes and improvements. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention. The protection scope required by the present invention is defined by the appended claims and their equivalents. The technical features not described in the present invention can be realized by or adopted the existing technologies, and will not be elaborated here.

Claims

1. An automatic oil pipe conveyor crane-free translation device, wherein the four corners of the automatic oil pipe conveyor are respectively provided with lifting legs, and four conveyor columns are symmetrically provided near the four corners, characterized in that: The outer side of the lower part of the conveyor column is symmetrically welded with a fixing seat extending outward, and the outer end of each fixing seat is respectively welded with a positioning cylinder, and the middle section of each positioning cylinder is respectively provided with a through positioning cylinder socket, the axis of each positioning cylinder is perpendicular to the ground, and the axis of each positioning cylinder socket is parallel to the ground; each positioning cylinder is respectively plugged with an adjusting cylinder, and each adjusting cylinder is respectively provided with a through adjusting cylinder socket, and a pin is inserted into the positioning cylinder socket and the adjusting cylinder socket to fix the adjusting cylinder in the positioning cylinder; the bottom of each adjusting cylinder is respectively fixedly connected with a pulley support ear opening downward, and a roller is respectively installed at the lower end of the pulley support ear, and each roller is respectively supported on a shift guide rail, and the shift guide rail is symmetrically located on both sides of the width direction of the automated oil pipe conveyor, parallel to each other and supported on the ground.

2. The crane-free translation device for the automated oil pipe conveyor according to claim 1 is characterized in that: The shift guide rail is a short-circuit oil pipe, and the roller is a concave roller.

3. The crane-free translation device for the automated oil pipe conveyor according to claim 1 is characterized in that: The positioning tube inserting holes are provided in two groups in a cross shape on the corresponding positioning tube.

4. The crane-free translation device for an automated oil pipe conveyor according to claim 1 is characterized in that: The adjusting cylinder jacks are provided with two or more groups parallel to each other in the height direction of the corresponding adjusting cylinders.

5. The crane-free translation device for the automated oil pipe conveyor according to claim 1 is characterized in that: The adjusting cylinder jacks are provided with two or more groups distributed in a cross shape on the corresponding adjusting cylinder.

6. The crane-free translation device for the automated oil pipe conveyor according to claim 1 is characterized in that: An adjusting cylinder top cover is fixed to the top of each adjusting cylinder, and a handle assembly is fixed to the top cover of each adjusting cylinder.

7. The crane-free translation device for the automated oil pipe conveyor according to claim 6 is characterized in that: Each handle assembly comprises a handle bottom plate and a handle welded to the upper end surface of the handle bottom plate. The center of each handle bottom plate is fixed to the corresponding adjustment cylinder top cover by screws and lock nuts.

8. The crane-free translation device for the automated oil pipe conveyor according to claim 1 is characterized in that: Each pulley support ear comprises a channel steel opening downwards, and connecting plates extending downwards are fixed to the outer walls on both sides of each channel steel, and both ends of the roller shaft of the corresponding roller are fixed to the lower end of the corresponding connecting plate.

9. The crane-free translation device for the automated oil pipe conveyor according to claim 8 is characterized in that: The connecting plate is in a stepped shape with a width at the top and a narrowness at the bottom. A pair of connecting plate fixing holes are provided on the upper part of each connecting plate, corresponding to the channel steel through holes of the channel steel side wall. Studs pass through the connecting plate fixing holes and the channel steel through holes, and nuts are used at both ends to fix the connecting plates to the corresponding channel steel walls.

10. The crane-free translation device for the automated oil pipe conveyor according to claim 8, characterized in that: Bearings are installed in the countersunk holes at both ends of the roller, the inner ring of each bearing rests against the shoulder of the roller shaft, and a retaining ring is provided between the inner ring of each bearing and the inner wall of the corresponding connecting plate; the two ends of each roller shaft pass through the connecting plate shaft hole at the lower center of each connecting plate and are locked by a roller shaft nut.

11. The crane-free translation device for an automated oil pipe conveyor according to any one of claims 1 to 10, characterized in that: One end of the bolt is provided with a head which is larger than the hole diameter of the positioning tube insertion hole, and the other end is provided with a conical head. A locking pin hole which is perpendicular to the bolt axis is provided at a position close to the conical head.

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