Adjustable well testing top sheave

Abstract

The invention discloses an adjustable well testing top sheave, and relates to the technical field of well testing top sheaves. Comprising an arc-shaped frame plate, a supporting rod is fixedly installed on the side end face of the arc-shaped frame plate, an arc-shaped groove is formed in the arc-shaped frame plate, an arc-shaped sliding block is slidably installed in the arc-shaped groove, a limiting arc block is fixedly installed at the top end of the arc-shaped sliding block, and an adjusting block is fixedly installed at the bottom end of the arc-shaped sliding block; a driving assembly is arranged on the adjusting block; an auxiliary assembly is arranged on the arc-shaped sliding block; a mounting plate is fixedly mounted on the adjusting block, adjusting assemblies which are symmetrically arranged are arranged on the mounting plate, a first connecting frame plate and a second connecting frame plate are mounted on the two adjusting assemblies correspondingly, and a pulley body is rotationally mounted between the first connecting frame plate and the second connecting frame plate. Through cooperative use of the driving assembly, the auxiliary assembly and the adjusting assembly, accurate angle adjustment of the pulley body can be achieved, and the working stability and adaptability of the pulley body are improved.

Description

Technical Field

[0001] The invention relates to the technical field of well testing overhead pulleys, in particular to an adjustable well testing overhead pulley. Background Art

[0002] During the field well test, the well test instrument is lowered into the wellbore through the blowout preventer installed on the Christmas tree for data collection and measurement. The nozzle of the blowout preventer is equipped with a plug, which is removed when the well test instrument is raised and lowered. After the well test is completed or during the well test, the plug is installed at the nozzle of the blowout preventer to seal the blowout preventer to prevent oil and gas leakage and environmental pollution. In addition, in order to meet the production needs in different situations, the plug installed at the nozzle of the blowout preventer has different models and heights.

[0003] In the prior art, a Chinese patent with publication number "CN207795135U" discloses a sky pulley assembly for well testing, which can change the height of the pulley from the nozzle of the blowout preventer by making the bracket height adjustable and adjusting the height of the bracket. When installing plugs of different models and heights at the nozzle of the blowout preventer, there is no need to replace the sky pulley. The height of the bracket can be adjusted so that the pulley does not hinder the installation of the plug. It can be seen that the sky pulley assembly for well testing provided by the utility model embodiment can adjust the height of the pulley from the nozzle of the blowout preventer by setting a height adjustable bracket to match various models of plugs, which can reduce labor intensity and reduce the workload of workers, and solves the problem of high labor intensity in the existing disassembly and replacement of sky pulleys of different heights to adapt to the height of the plug.

[0004] As in the solution described above, the height of the pulley is adjusted by adjusting the height of the bracket, but in this solution, the angle of the pulley cannot be adjusted. Since the contact angle between the rope or cable and the pulley is not appropriate during use, the friction will increase, thereby reducing the efficiency of the entire pulley assembly. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an adjustable well testing top pulley to solve the problems mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: An adjustable well testing pulley comprises an arc frame plate, a support rod is fixedly mounted on the side end surface of the arc frame plate, an arc groove is provided on the arc frame plate, an arc slider is slidably mounted inside the arc groove, a limit arc block is fixedly mounted on the top end of the arc slider, an adjustment block is fixedly mounted on the bottom end of the arc slider, and a driving assembly is arranged on the adjustment block; The arc-shaped slider is provided with an auxiliary component; A mounting plate is fixedly mounted on the adjusting block, and symmetrically arranged adjusting components are arranged on the mounting plate. A connecting frame plate 1 and a connecting frame plate 2 are respectively mounted on the two adjusting components, and a pulley body is rotatably mounted between the connecting frame plates 1 and 2.

[0007] Preferably, the driving assembly includes a positioning arc groove opened on the arc frame plate, a worm gear group is fixedly installed inside the positioning arc groove, a mounting groove is opened on the adjustment block, symmetrically arranged side panels are fixedly installed inside the mounting groove, a driving motor is fixedly installed on one of the side panels, a driving shaft is fixedly installed on the output end of the driving motor, and a worm is fixedly installed on the driving shaft.

[0008] Preferably, the position of the limiting arc block is on the inner side of the arc frame plate, the position of the adjusting block is on the outer side of the arc frame plate, the limiting arc block and the adjusting block are both in sliding contact with the arc frame plate, and the worm is drivingly connected to the worm gear set.

[0009] Preferably, the auxiliary component includes a mounting frame plate fixedly mounted on the limiting arc block, an air pump is fixedly mounted on the mounting frame plate, an output end of the air pump is fixedly connected to an air pipe, and an end of the air pipe away from the air pump is fixedly connected to a shunt pipe.

[0010] Preferably, the limiting arc block is provided with symmetrically arranged receiving grooves, a fastening airbag is fixedly installed inside the receiving groove, and a connecting pipe is fixedly connected to the fastening airbag.

[0011] Preferably, one end of the air delivery pipe away from the air pump extends to below the mounting frame plate, and one end of the connecting pipe away from the fastening airbag passes through the limiting arc block and is fixedly connected to the shunt pipe.

[0012] Preferably, the adjustment assembly includes a mounting plate fixedly mounted on the mounting plate, the side end surface of the mounting plate being fixedly mounted with symmetrically arranged electric push rods, the output shaft of the electric push rods being fixedly mounted with a positioning slider, a linkage shaft being rotatably mounted on the positioning slider, and main driving rods being fixedly mounted at both ends of the linkage shaft.

[0013] Preferably, a connecting shaft is fixedly installed between the two main driving rods, symmetrically arranged auxiliary driving rods are rotatably installed on the connecting shaft, and a rotating shaft is fixedly installed between the two auxiliary driving rods.

[0014] Preferably, both the connecting frame plates 1 and 2 are provided with connecting grooves, a rotating shaft is rotatably installed inside the connecting grooves, a positioning groove is provided on the mounting plate, a connecting block is fixedly installed on the lower end surface of the mounting plate, and a rotating shaft is rotatably installed on the connecting block.

[0015] Preferably, the positioning slider is slidably connected to the positioning slot, the end of the main driving rod away from the linkage shaft is rotationally connected to the connecting slot through a rotating shaft, and the end of the auxiliary driving rod away from the connecting shaft is rotationally connected to the connecting block through a rotating shaft.

[0016] The present invention provides an adjustable well testing top pulley. Compared with the prior art, it has the following beneficial effects: 1. In the present invention, when the pulley body needs to be adjusted to the left and right tilt angles, the driving motor drives the driving shaft to rotate, and the driving shaft will synchronously drive the worm to rotate. The worm cooperates with the worm gear set in the positioning arc groove, and the adjusting block cooperates with the arc-shaped slider, the arc groove and the limit arc block to adjust the position on the arc frame plate. The adjustment block cooperates with the pulley body to finally complete the angle adjustment of the pulley body. 2. In the present invention, after the limiting arc block follows the adjusting block to adjust the angle, the air pump is started to discharge the gas into the separation pipe through the gas delivery pipe, and the gas in the shunt pipe is passed into the fastening airbag through the connecting pipe. The inflated fastening airbag is ejected from the storage groove, and the ejected part is tightly fitted with the arc frame plate, thereby improving the fastening between the limiting arc block and the arc frame plate after the angle adjustment, and ensuring the stability of the pulley body; 3. In the present invention, when the height of the pulley body needs to be adjusted, the two electric push rods on the mounting plate are started at the same time, and the two electric push rods will synchronously drive the two positioning slide blocks to slide in the positioning slide grooves. When the positioning slide blocks slide outward, the two main driving rods will cooperate with the connecting frame plate 1 and the connecting frame plate 2, and the auxiliary driving rod will cooperate with the rotating shaft and the connecting block to adjust the height of the pulley body on the mounting plate; 4. In the present invention, when the front-to-back tilt angle of the pulley body needs to be adjusted, one of the electric push rods on the mounting plate can be started, and the other electric push rod is not started. One of the electric push rods is used to drive the positioning slider to move inward, and the positioning slider will change the relative position of the connecting frame plate 1 through the cooperation between the main driving rod and the connecting frame plate 1, and the auxiliary driving rod will use the cooperation between the rotating shaft and the connecting block, while the connecting frame plate 2 remains stationary, so that the front-to-back tilt angle of the pulley body changes, ensuring that the pulley body is in the best working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the adjustment block in the present invention; Figure 3 It is a schematic diagram of the structure of the driving component in the present invention; Figure 4 It is a structural schematic diagram of the arc frame plate in the present invention; Figure 5 It is a structural schematic diagram of the regulating component in the present invention; Figure 6 It is a structural schematic diagram of the main driving rod in the present invention; Figure 7 It is a schematic diagram of the internal structure of the adjustment block in the present invention; Figure 8 It is a schematic diagram of the structure of the auxiliary components in the present invention.

[0018] In the figure: 1, arc frame plate; 2, support rod; 3, arc groove; 4, arc slider; 5, limit arc block; 6, adjustment block; 7, mounting plate; 8, connecting frame plate 1; 9, connecting frame plate 2; 10, pulley body; 11, positioning arc groove; 12, worm gear set; 13, mounting groove; 14, side plate; 15, drive motor; 16, drive shaft; 17, worm; 18, mounting frame plate; 19, air pump; 20, air supply pipe; 21, shunt pipe; 22, storage groove; 23, fastening airbag; 24, connecting pipe; 25, mounting plate; 26, electric push rod; 27, positioning slider; 28, linkage shaft; 29, main drive rod; 30, connecting shaft; 31, auxiliary drive rod; 32, rotating shaft; 33, connecting groove; 34, rotating shaft; 35, positioning slide groove; 36, connecting block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-8 The present invention is an adjustable well testing pulley, comprising an arc frame plate 1, a support rod 2 is fixedly installed on the side end surface of the arc frame plate 1, an arc groove 3 is opened on the arc frame plate 1, an arc slider 4 is slidably installed inside the arc groove 3, a limited arc block 5 is fixedly installed on the top end of the arc slider 4, an adjustment block 6 is fixedly installed on the bottom end of the arc slider 4, and a driving component is arranged on the adjustment block 6; The adjusting block 6 is fixedly mounted with a mounting plate 7, on which are arranged symmetrical adjusting components, and the two adjusting components are respectively mounted with a connecting frame plate 1 8 and a connecting frame plate 2 9, between which a pulley body 10 is rotatably mounted; The driving assembly includes a positioning arc groove 11 provided on the arc frame plate 1, a worm gear set 12 is fixedly installed inside the positioning arc groove 11, a mounting groove 13 is provided on the adjusting block 6, and a symmetrically arranged side plate 14 is fixedly installed inside the mounting groove 13, a driving motor 15 is fixedly installed on one of the side plates 14, a driving shaft 16 is fixedly installed on the output end of the driving motor 15, and a worm 17 is fixedly installed on the driving shaft 16, the position of the limiting arc block 5 is located on the inner side of the arc frame plate 1, and the position of the adjusting block 6 is located on the outer side of the arc frame plate 1, the limiting arc block 5 and the adjusting block 6 are both in sliding contact with the arc frame plate 1, and the worm 17 is connected to the worm gear set 12 in driving connection, wherein the worm gear transmission has the advantages of having a higher reduction ratio and a self-locking function, which can prevent the system from accidentally rotating or loosening, and the power source of the driving motor 15 can be installed on the adjusting block 6 to ensure that the driving motor 15 can work stably, and since the worm gear transmission and the power source of the driving motor 15 are both technologies well known to those skilled in the art, they are not described in detail here.

[0021] In this embodiment, when the pulley body 10 needs to be adjusted to the left and right tilt angle, the drive shaft 16 is driven to rotate by the driving motor 15, and the drive shaft 16 will synchronously drive the worm 17 to rotate. The worm 17 cooperates with the worm gear group 12 in the positioning arc groove 11, and the adjustment block 6 will adjust its position on the arc frame plate 1 through the cooperation of the arc slider 4, the arc groove 3 and the limiting arc block 5. The angle adjustment of the pulley body 10 is finally completed by the cooperation of the adjustment block 6 and the pulley body 10.

[0022] An auxiliary component is provided on the arc-shaped slider 4, and the auxiliary component includes a mounting frame plate 18 fixedly mounted on the limiting arc block 5, an air pump 19 is fixedly mounted on the mounting frame plate 18, an output end of the air pump 19 is fixedly connected to an air pipe 20, and an end of the air pipe 20 away from the air pump 19 is fixedly connected to a shunt pipe 21, and a symmetrically arranged storage groove 22 is provided on the limiting arc block 5, a fastening air bag 23 is fixedly mounted inside the storage groove 22, and a connecting pipe 24 is fixedly connected to the fastening air bag 23, an end of the air pipe 20 away from the air pump 19 extends to the bottom of the mounting frame plate 18, an end of the connecting pipe 24 away from the fastening air bag 23 passes through the limiting arc block 5, and is fixedly connected to the shunt pipe 21, wherein a valve can be provided on the air pipe 20, and the valve is used to ensure that the gas in the fastening air bag 23 will flow back. Since the valve is a technology well known to people in this field, it will not be described in detail here.

[0023] In this embodiment, after the limiting arc block 5 follows the adjusting block 6 to adjust the angle, the air pump 19 is started to discharge the gas into the separation tube through the gas pipe 20, and the gas in the shunt pipe 21 will pass into the fastening air bag 23 through the connecting pipe 24. The inflated fastening air bag 23 will be ejected from the storage groove 22, and the ejected part will fit tightly with the arc frame plate 1, thereby improving the fastening between the limiting arc block 5 and the arc frame plate 1 after the angle adjustment, and ensuring the stability of the pulley body 10.

[0024] The adjustment assembly includes a mounting plate 25 fixedly mounted on the mounting plate 7, a symmetrically arranged electric push rod 26 fixedly mounted on the side end surface of the mounting plate 25, a positioning slider 27 fixedly mounted on the output shaft of the electric push rod 26, a linkage shaft 28 rotatably mounted on the positioning slider 27, main driving rods 29 fixedly mounted on both ends of the linkage shaft 28, a connecting shaft 30 fixedly mounted between the two main driving rods 29, a symmetrically arranged secondary driving rod 31 rotatably mounted on the connecting shaft 30, a rotating shaft 32 fixedly mounted between the two secondary driving rods 31, and a connecting groove 33 is provided on the two connecting frame plates 1 8 and the connecting frame plate 2 9. A rotating shaft 34 is rotatably installed inside the connecting groove 33, a positioning groove 35 is opened on the mounting plate 7, a connecting block 36 is fixedly installed on the lower end surface of the mounting plate 7, a rotating shaft 34 is rotatably installed on the connecting block 36, the positioning slider 27 is slidably connected to the positioning groove 35, the end of the main driving rod 29 away from the linkage shaft 28 is rotatably connected to the connecting groove 33 through the rotating shaft 34, and the end of the auxiliary driving rod 31 away from the connecting shaft 30 is rotatably connected to the connecting block 36 through the rotating shaft 32, wherein the main driving rod 29 and the auxiliary driving rod 31 are arranged in a triangle to ensure that the two can cooperate when the position moves.

[0025] In this embodiment, when the height of the pulley body 10 needs to be adjusted, the two electric push rods 26 on the mounting plate 25 are started at the same time, and the two electric push rods 26 will synchronously drive the two positioning slide blocks 27 to slide in the positioning slide grooves 35. When the positioning slide blocks 27 slide outward, the two main driving rods 29 will cooperate with the connecting frame plate 1 8 and the connecting frame plate 2 9, and the auxiliary driving rod 31 will cooperate with the rotating shaft 32 and the connecting block 36, thereby adjusting the height of the pulley body 10 on the mounting plate 7. When the front and rear tilt angle of the pulley body 10 needs to be adjusted, When making adjustments, one of the electric push rods 26 on the mounting plate 25 can be started, while the other electric push rod 26 is not started. One of the electric push rods 26 is used to drive the positioning slider 27 to move inward. The positioning slider 27 will change the relative position of the connecting frame plate 1 8 through the cooperation between the main driving rod 29 and the connecting frame plate 1 8, and the auxiliary driving rod 31 will use the cooperation between the rotating shaft 32 and the connecting block 36 to achieve the change of the relative position of the connecting frame plate 1 8, while the connecting frame plate 2 9 remains stationary, so that the front and rear inclination angles of the pulley body 10 change, ensuring that the pulley body 10 is in the best working state.

[0026] Working principle: When in use, the arc frame plate 1 is installed above the wellhead through the support rod 2 to ensure that the pulley body 10 is in the best use position; When the pulley body 10 needs to be adjusted to the left and right tilt angle, the driving motor 15 drives the driving shaft 16 to rotate, and the driving shaft 16 will synchronously drive the worm 17 to rotate. The worm 17 cooperates with the worm gear set 12 in the positioning arc groove 11, and the adjusting block 6 cooperates with the arc slider 4, the arc groove 3 and the limiting arc block 5 to adjust the position on the arc frame plate 1. The adjustment block 6 cooperates with the pulley body 10 to finally complete the angle adjustment of the pulley body 10. After the limiting arc block 5 follows the adjusting block 6 to adjust the angle, the air pump 19 is started to discharge the gas into the separation tube through the gas delivery pipe 20, and the gas in the shunt pipe 21 is passed into the fastening airbag 23 through the connecting pipe 24. The inflated fastening airbag 23 is ejected from the storage groove 22, and the ejected part is tightly fitted with the arc frame plate 1, thereby improving the fastening between the limiting arc block 5 and the arc frame plate 1 after the angle adjustment, and ensuring the stability of the pulley body 10; When the height of the pulley body 10 needs to be adjusted, the two electric push rods 26 on the mounting plate 25 are started at the same time, and the two electric push rods 26 will synchronously drive the two positioning slide blocks 27 to slide in the positioning slide grooves 35. When the positioning slide blocks 27 slide outward, the two main driving rods 29 will cooperate with the connecting frame plate 1 8 and the connecting frame plate 2 9, and the auxiliary driving rod 31 will cooperate with the rotating shaft 32 and the connecting block 36, thereby adjusting the height of the pulley body 10 on the mounting plate 7; When the front-to-back tilt angle of the pulley body 10 needs to be adjusted, one of the electric push rods 26 on the mounting plate 25 can be started, and the other electric push rod 26 is not started. One of the electric push rods 26 is used to drive the positioning slider 27 to move inward, and the positioning slider 27 will change the relative position of the connecting frame plate 1 8 through the cooperation of the main driving rod 29 and the connecting frame plate 1 8, and the auxiliary driving rod 31 will use the cooperation of the rotating shaft 32 and the connecting block 36 to achieve the change of the relative position of the connecting frame plate 1 8, while the connecting frame plate 2 9 remains stationary, so that the front-to-back tilt angle of the pulley body 10 changes, ensuring that the pulley body 10 is in the best working state.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An adjustable well testing pulley, comprising an arc-shaped frame plate (1), characterized in that: A support rod (2) is fixedly mounted on the side end surface of the arc frame plate (1); an arc groove (3) is provided on the arc frame plate (1); an arc slider (4) is slidably mounted inside the arc groove (3); a limit arc block (5) is fixedly mounted on the top end of the arc slider (4); an adjustment block (6) is fixedly mounted on the bottom end of the arc slider (4); and a driving assembly is arranged on the adjustment block (6); The arc-shaped slider (4) is provided with an auxiliary component; A mounting plate (7) is fixedly mounted on the adjustment block (6), and symmetrically arranged adjustment components are provided on the mounting plate (7). A connecting frame plate 1 (8) and a connecting frame plate 2 (9) are respectively mounted on the two adjustment components, and a pulley body (10) is rotatably mounted between the connecting frame plate 1 (8) and the connecting frame plate 2 (9).

2. The adjustable well testing pulley according to claim 1, characterized in that: The driving assembly comprises a positioning arc groove (11) formed on the arc frame plate (1), a worm gear set (12) being fixedly mounted inside the positioning arc groove (11), a mounting groove (13) formed on the adjusting block (6), symmetrically arranged side plates (14) being fixedly mounted inside the mounting groove (13), a driving motor (15) being fixedly mounted on one of the side plates (14), a driving shaft (16) being fixedly mounted on the output end of the driving motor (15), and a worm (17) being fixedly mounted on the driving shaft (16).

3. The adjustable well testing top pulley according to claim 2, characterized in that: The position of the limit arc block (5) is located on the inner side of the arc frame plate (1), and the position of the adjustment block (6) is located on the outer side of the arc frame plate (1). The limit arc block (5) and the adjustment block (6) are both in sliding contact with the arc frame plate (1), and the worm (17) is drivingly connected to the worm gear set (12).

4. The adjustable well testing top pulley according to claim 2, characterized in that: The auxiliary component comprises a mounting frame plate (18) fixedly mounted on the limiting arc block (5), an air pump (19) fixedly mounted on the mounting frame plate (18), an output end of the air pump (19) fixedly connected to an air delivery pipe (20), and an end of the air delivery pipe (20) away from the air pump (19) fixedly connected to a shunt pipe (21).

5. The adjustable well testing top pulley according to claim 4, characterized in that: The limiting arc block (5) is provided with symmetrically arranged receiving grooves (22), a fastening airbag (23) is fixedly installed inside the receiving groove (22), and a connecting pipe (24) is fixedly connected to the fastening airbag (23).

6. The adjustable well testing top pulley according to claim 5, characterized in that: One end of the air delivery pipe (20) away from the air pump (19) extends to below the mounting frame plate (18), and one end of the connecting pipe (24) away from the fastening airbag (23) passes through the limiting arc block (5) and is fixedly connected to the shunt pipe (21).

7. The adjustable well testing pulley according to claim 1, characterized in that: The adjustment assembly comprises a mounting plate (25) fixedly mounted on a mounting plate (7), a symmetrically arranged electric push rod (26) fixedly mounted on a side end surface of the mounting plate (25), a positioning slider (27) fixedly mounted on an output shaft of the electric push rod (26), a linkage shaft (28) rotatably mounted on the positioning slider (27), and main drive rods (29) fixedly mounted on both ends of the linkage shaft (28).

8. The adjustable well testing top pulley according to claim 7, characterized in that: A connecting shaft (30) is fixedly mounted between the two main driving rods (29), symmetrically arranged auxiliary driving rods (31) are rotatably mounted on the connecting shaft (30), and a rotating shaft (32) is fixedly mounted between the two auxiliary driving rods (31).

9. The adjustable well testing top pulley according to claim 8, characterized in that: The two connecting frame plates 1 (8) and 2 (9) are both provided with connecting grooves (33), a rotating shaft (34) is rotatably mounted inside the connecting grooves (33), a positioning sliding groove (35) is provided on the mounting plate (7), and a connecting block (36) is fixedly mounted on the lower end surface of the mounting plate (7).

10. The adjustable well testing top pulley according to claim 9, characterized in that: The positioning slide block (27) is slidably connected to the positioning slide groove (35); one end of the main driving rod (29) away from the linkage shaft (28) is rotationally connected to the connecting groove (33) via a rotating shaft (34); and one end of the auxiliary driving rod (31) away from the connecting shaft (30) is rotationally connected to the connecting block (36) via a rotating shaft (32).

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