Pipe column lifting mechanical hand trolley with multiple regulation and anti-falling function

Abstract

The application discloses a pipe column lifting manipulator trolley with multiple adjustment and anti-falling functions, which comprises a pipe column lifting manipulator frame body, sliding shoes are arranged on the upper and lower left and right four corners of the pipe column lifting manipulator frame body, an upper cross beam of the pipe column lifting manipulator frame body is connected with a lifting pulley assembly, a spring I is connected between the lifting pulley assembly and the upper cross beam of the pipe column lifting manipulator frame body, a guide pulley set is arranged between the lifting pulley assembly and the two upper sliding shoes, two traction steel wire ropes are wound around the guide pulley set, one end of each of the two traction steel wire ropes is connected to the lifting pulley assembly, and the other end of each of the two traction steel wire ropes is connected to the two upper sliding shoes. The trolley has the functions of manually adjusting an initial opening size, automatically adjusting a real-time opening size in a working state of the trolley and manually adjusting a maximum installation size, and the trolley can meet smooth and reliable operation of equipment and reduce production and use costs. In addition, the trolley is provided with a steel wire rope linkage automatic anti-falling mechanism, and the risk of accidental falling of the equipment in the air is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of oil drilling equipment, and particularly relates to a pipe string lifting manipulator trolley with multiple adjustment and anti-falling functions. BACKGROUND

[0002] The pipe string lifting manipulator is used for lifting various pipe strings in oil drilling operations, and can lift single drill pipes and drill collars from the power catwalk to the drilling platform and put them into the mouse hole or wellhead, and can also lift the drill pipes and drill collars to the required height and hand them over to the pipe arranging manipulator on the second floor.

[0003] The trolley is one of the key components of the pipe string lifting manipulator, and has a crucial influence on the up and down running of the pipe string lifting manipulator on the track. The trolley in the prior art generally has the following problems: 1. The trolley and the equipment body are generally fixedly connected, and the trolley cannot be adjusted after installation. Therefore, in order to enable the trolley to smoothly run on the track, it is necessary to require the track to have high machining and assembly precision, otherwise the trolley will be blocked due to too small track gap or will shake due to too large track gap during running. When the pipe string lifting manipulator is operating, the stand pipe needs to be lifted to above the second floor, and the running distance is about thirty meters. It is very high in manufacturing cost to install such a long stroke high-precision track on the large structural member such as the drilling rig derrick; 2. In order to enable the trolley on the pipe string lifting manipulator to be clamped into the track, a plurality of connecting pins and bolts need to be disassembled and assembled during installation, which is time-consuming and laborious; 3. The trolley in the prior art generally uses a steel wire rope for lifting, and there is a risk of high-altitude falling when the steel wire rope is accidentally broken or the equipment is accidentally stalled. Therefore, it is necessary to research and design a pipe string lifting manipulator trolley with adjustable and anti-falling functions to reduce the production and use cost and avoid high-altitude accidental falling of the equipment. SUMMARY

[0004] The purpose of the present application is to provide a pipe string lifting manipulator trolley with multiple adjustment and anti-falling functions, which solves the problems of unadjustable opening size of the trolley in the prior art and the risk of accidental falling of the pipe string during lifting.

[0005] The technical solution adopted by the present application is that the pipe string lifting manipulator trolley with multiple adjustment and anti-falling functions comprises a pipe string lifting manipulator frame body, sliding shoes are arranged at the upper and lower left and right corners of the pipe string lifting manipulator frame body, an upper cross beam of the pipe string lifting manipulator frame body is connected with a lifting pulley assembly through a pin shaft III, a lifting steel wire rope is wound around a pulley of the lifting pulley assembly, a spring I is connected between the lifting pulley assembly and the upper cross beam of the pipe string lifting manipulator frame body, a guide pulley set is arranged between the lifting pulley assembly and the two upper sliding shoes, two traction steel wire ropes are wound around the guide pulley set, one end of each of the two traction steel wire ropes is connected to the lifting pulley assembly, and the other end of each of the two traction steel wire ropes is connected to the two upper sliding shoes.

[0006] The invention is further characterized by:

[0007] The slide shoe includes a slide seat with a U-shaped groove on one side and a cylindrical guide post on the other side of the slide seat perpendicular to the slide seat. Slide blocks are installed on the inner sides of the three sides of the U-shaped groove by bolts. Disc spring assemblies and disc spring spacers are arranged axially from the inside to the outside of the guide post of the slide seat. A sleeve is fitted over the guide post of the slide seat. A circular groove is provided at the center of the outer surface of one side of the sleeve. A stud passes through the sleeve axially and rests in the groove of the disc spring spacer. A lock nut is screwed onto the stud to lock the stud and the sleeve.

[0008] The outer surface of the sleeve is provided with two ear plates. One ear plate of the sleeve is connected to the frame of the pipe column lifting robot through pin I and pin II, and the other ear plate of the sleeve is connected to the trolley seat through guide bolts.

[0009] The lug plate connecting the sleeve and the trolley seat has a waist-shaped hole.

[0010] Both upper sliding shoes have wedge-shaped teeth in their U-shaped grooves. One end of the wedge-shaped teeth is connected to the traction steel wire rope, and the other end is connected to the trolley seat through spring II.

[0011] The beneficial effects of this invention are as follows: The manipulator trolley of this invention adopts an adjustment structure combining disc springs, studs, and pins, enabling the manipulator trolley to have both manual and automatic adjustment functions, meeting the requirements for reliable operation and low-cost use of the manipulator. The manipulator trolley of this invention allows manual adjustment of the initial opening size of the sliding shoes to adapt to different track spacings, reducing the requirements for track processing and installation accuracy and lowering manufacturing costs. During trolley operation, the working state and real-time opening size of the sliding shoes can be automatically adjusted to reduce wear on the track and slider, lowering operating costs. The maximum installation size of the manipulator frame can be manually adjusted, facilitating quick installation and reducing installation costs. Furthermore, when the wire rope breaks or the equipment unexpectedly stalls, the wire rope mechanism in this invention will trigger a fall prevention linkage, causing the wedge-shaped jaw plate to contact the track. The wedge-shaped jaw plate bites into the track surface, preventing the equipment from falling from a height and improving operational safety. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the pipe column lifting manipulator pulley with multiple adjustment and anti-fall functions of the present invention;

[0013] Figure 2 This is a top view of the pipe column lifting manipulator pulley with multiple adjustment and anti-fall functions of the present invention;

[0014] Figure 3 This is a schematic diagram of the slide shoe structure of the pipe column lifting manipulator pulley with multiple adjustment and anti-fall functions of the present invention when applied to a wide-slot track;

[0015] Figure 4 is the structure schematic diagram of the sliding shoe of the pipe column lifting manipulator trolley with multiple adjustment and anti-falling function applied to small opening rail of the present application;

[0016] Figure 5 is the wedge-shaped tooth plate position schematic diagram of the pipe column lifting manipulator trolley with multiple adjustment and anti-falling function of the present application;

[0017] Figure 6 is the structure schematic diagram of the pipe column lifting manipulator trolley with multiple adjustment and anti-falling function of the present application in the installation state;

[0018] Figure 7 is the schematic diagram of the pipe column lifting manipulator trolley with multiple adjustment and anti-falling function of the present application in the case of accidental falling;

[0019] Figure 8 is the wedge-shaped tooth plate position schematic diagram of the pipe column lifting manipulator trolley with multiple adjustment and anti-falling function of the present application in the case of accidental falling.

[0020] In the figure, 1. sliding shoe, 2. pipe column lifting manipulator frame body, 3. rail, 4. pin shaft I, 5. pin shaft II, 6. sliding block, 7. trolley seat, 8. disc spring group, 9. guide bolt, 10. disc spring spacer sleeve, 11. sleeve, 12. locking nut, 13. stud, 14. guide pulley set, 15. lifting steel wire rope, 16. lifting pulley assembly, 17. pin shaft III, 18. spring I, 19. traction steel wire rope, 20. wedge-shaped tooth plate, 21. spring II. DETAILED DESCRIPTION

[0021] The present application will be described in detail below in combination with the drawings and specific embodiments.

[0022] The structure of the pipe column lifting manipulator trolley with multiple adjustment and anti-falling function of the present application is shown in Figure 1 and Figure 2 , which comprises a pipe column lifting manipulator frame body 2, the pipe column lifting manipulator frame body 2 is provided with sliding shoes 1 at the upper left and right corners, the upper cross beam of the pipe column lifting manipulator frame body 2 is connected with a lifting pulley assembly 16 through a pin shaft III 17, the pulley of the lifting pulley assembly 16 is wound with a lifting steel wire rope 15, a spring I 18 is connected between the lifting pulley assembly 16 and the upper cross beam of the pipe column lifting manipulator frame body 2, a guide pulley set 14 is arranged between the lifting pulley assembly 16 and the two upper sliding shoes 1, two traction steel wire ropes 19 are wound through the guide pulley set 14, one end is connected to the lifting pulley assembly 16, and the other end is connected to the two upper sliding shoes 1, respectively.

[0023] As shown in Figure 3 and Figure 4As shown, the sliding shoe 1 comprises a trolley seat 7, one side of the trolley seat 7 is provided with a U-shaped groove, in the working state, the left and right two tracks 3 are respectively clamped into the U-shaped grooves of the four sliding shoes 1 on the left and right sides, the other side of the trolley seat 7 is provided with a cylindrical guide column in the direction perpendicular to the trolley seat 7, the inner side of three surfaces of the U-shaped groove is provided with a sliding block 6 through a bolt, the U-shaped groove of the two sliding shoes 1 located at the upper part is provided with a wedge-shaped tooth plate 20, one end of the wedge-shaped tooth plate 20 is connected with the traction steel wire rope 19, and the other end is connected with the trolley seat 7 through a spring II 21. The inner cavity of the guide column of the trolley seat 7 is sequentially provided with a disc spring group 8 and a disc spring spacer 10 from inside to outside along the axial direction, the guide column of the trolley seat 7 is sleeved with a sleeve 11, the disc spring spacer 10 is provided with a circular groove at the center position of the outer surface of one side of the sleeve 11, a stud 13 penetrates the sleeve 11 in the axial direction and is abutted in the groove of the disc spring spacer 10, and a locking nut 12 is screwed on the stud 13 to lock the stud 13 and the sleeve 11.

[0024] The outer surface of the sleeve 11 is provided with two side ears, one side ear of the sleeve 11 is connected to the pipe column lifting mechanical support body 2 through a pin shaft I 4 and a pin shaft II 5, the other side ear of the sleeve 11 is provided with a waist-shaped hole, a guide bolt 9 is inserted into the waist-shaped hole to connect with the trolley seat 7, and the guide bolt 9 can slide in the waist-shaped hole.

[0025] The manual adjustment and automatic adjustment opening size of the trolley are realized by the following modes:

[0026] Mode one: manually adjusting the initial opening size of the lifting pipe column mechanical hand sliding shoe 1 to adapt to different track 3 spacing sizes L. After the spacing L of the two tracks 3 is determined, the locking nut 12 is loosened. As shown in the figure, Figure 4 If the spacing L is larger, the stud 13 is screwed into the sleeve 11, the stud 13 pushes the disc spring spacer 10, the disc spring group 8, the trolley seat 7 and the sliding block 6, so that the sliding block 6 is away from the sleeve 11 fixed on the pipe column lifting mechanical hand, at this time, the sliding block 6 has a larger spacing L2 with the equipment body, which can match a larger track spacing; as shown in the figure, Figure 3 If the spacing L is smaller, the stud 13 is screwed out of the sleeve 11, when an external force acts on the sliding block 6 and the trolley seat 7, the disc spring group 8 and the disc spring spacer 10 are pushed to move towards the stud 13, so that the sliding block 6 is close to the sleeve 11 fixed on the pipe column lifting mechanical hand, at this time, the sliding block 6 has a smaller spacing L1 with the equipment body, which can match a smaller track spacing. After the opening size of the sliding shoe 1 is adjusted to be consistent with the track 3 spacing, the locking nut 12 is tightened.

[0027] The second mode is to automatically adjust the working state of the lifting pipe column mechanical hand sliding shoe 1 in real time to reduce the wear of the track 3 and the sliding block 6 and to make the up and down operation stable. Since the total length of the track 3 is about 30 meters and is fixed on a large structure, the spacing size L in the full length range must have a certain deviation. When the sliding shoe 1 runs to the smaller spacing L of the track 3, the disc spring group 8 automatically adjusts the distance between the sliding block 6 and the track 3 through the deformation of the disc spring group 8, the normal pressure between the two is reduced, the friction is reduced, and the wear of the track 3 and the sliding block 6 is reduced. Meanwhile, the disc spring group 8 has a buffering and damping function, changes the conventional rigid collision between the sliding block 6 and the track 3 into a flexible collision, and makes the operation more stable.

[0028] The third mode is to manually adjust the maximum installation size of the pipe column lifting mechanical hand frame body 2 to facilitate quick installation. As shown in Figure 3 and Figure 4 , before installation, the pin shaft I 4 on the four sliding shoes 1 is removed from the A hole, the sliding shoe 1 is rotated by 90° around the pin shaft II 5, the pin shaft I 4 is installed in the B hole, and the fixed state is as shown in Figure 6 . Then, the pipe column lifting mechanical hand frame body 2 is hoisted to a suitable installation position, the pin shaft I 4 is removed from the B hole, the sliding shoe 1 is reversely rotated by 90° around the pin shaft II 5, the U-shaped groove of the trolley is clamped into the corresponding track 3, the pin shaft I 4 is installed in the A hole, and the installation is completed.

[0029] The anti-falling implementation method of the mechanical hand trolley is:

[0030] When the equipment is working, the lifting steel wire rope 15 is wound on the lifting pulley assembly 16, the lifting pulley assembly 16 is subjected to the symmetrical lifting force of the lifting steel wire rope 15, remains vertical and will not tilt, and the spring I 18 is passively elongated at this time. The traction steel wire rope 19 wound on the guide pulley set 14 is in a relaxed state. As shown in Figure 5 , the wedge-shaped tooth plate 20 is located at the lower part of the wedge surface of the trolley seat 7 under the action of its own gravity and the spring II 21, the wedge-shaped tooth plate 20 does not contact the track 3, there is a spacing L3, and the sliding shoe 1 can freely slide on the track 3.

[0031] As shown in Figure 7 , when the lifting steel wire rope 15 is broken or the equipment is unexpectedly stalled, the lifting steel wire rope 15 is separated from the lifting pulley assembly 16, the lifting pulley assembly 16 is subjected to the unilateral tension of the spring I 18 and tilts to one side. The traction steel wire rope 19 wound on the guide pulley set 14 is in a tensioned state under the pulling of the lifting pulley assembly 16. As shown in Figure 8 , the wedge-shaped tooth plate 20 is dragged to the upper part of the wedge surface of the trolley seat 7 under the action of the traction force of the traction steel wire rope 19, the wedge-shaped tooth plate 20 contacts the track 3, the tooth plate bites into the surface of the track 3, and the sliding shoe 1 cannot slide, thereby preventing the equipment from falling from a high altitude.

Claims

1. A pipe column lifting manipulator trolley with multiple adjustment and anti-falling functions, characterized in that, The utility model provides a kind of pipe column lifting mechanical scaffold body (2), the slide shoe (1) is equipped in the upper left and right four corners of the pipe column lifting mechanical scaffold body (2), the upper crossbeam of the pipe column lifting mechanical scaffold body (2) is connected with lifting pulley assembly (16) by pin shaft III (17), lifting steel wire rope (15) is wound on the pulley of the lifting pulley assembly (16), spring I (18) is connected between the lifting pulley assembly (16) and the upper crossbeam of the pipe column lifting mechanical scaffold body (2), guide pulley set (14) is arranged between the lifting pulley assembly (16) and the two slide shoes (1) of upper portion, two traction steel wire ropes (19) are wound over the guide pulley set (14) respectively, one end is connected on the lifting pulley assembly (16), and the other end is connected on the two slide shoes (1) of upper portion respectively; The slide shoe (1) includes a trolley seat (7), the trolley seat (7) is provided with a U-shaped groove on one side, a cylindrical guide column is provided on the other side of the trolley seat (7) in a direction perpendicular to the trolley seat (7), three inner sides of the U-shaped groove are each provided with a sliding block (6) by bolts, a disc spring set (8) and a disc spring spacer (10) are sequentially arranged in the guide column inner cavity of the trolley seat (7) from inside to outside along the axial direction, a sleeve (11) is sleeved on the guide column of the trolley seat (7), a circular groove is arranged on the center position of the outer surface of one side of the sleeve (11), a stud (13) penetrates the sleeve (11) along the axial direction and is located in the groove of the disc spring spacer (10), and a lock nut (12) is screwed on the stud (13) to lock the stud (13) and the sleeve (11). A wedge-shaped jaw (20) is arranged in the U-shaped groove of the two slide shoes (1) on the upper portion, one end of the wedge-shaped jaw (20) is connected with the traction steel wire rope (19), and the other end is connected with the trolley seat (7) through a spring II (21).

2. The pipe column lifting manipulator trolley with multiple adjustment and anti-falling function according to claim 1, characterized in that, The outer surface of the sleeve (11) is provided with two side ears, one side ear of the sleeve (11) is connected to the pipe column lifting mechanical scaffold body (2) through a pin shaft I (4) and a pin shaft II (5), and the other side ear of the sleeve (11) is connected to the trolley seat (7) through a guide bolt (9).

3. The pipe column lifting manipulator trolley with multi-adjustment and anti-falling function according to claim 2, characterized in that, The ear plate connected with the trolley seat (7) of the sleeve (11) has a waist-shaped hole.

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