Transfer air cylinder supporting device and hydraulic power tongs

Abstract

The utility model belongs to the technical field of oil and gas drilling and workover equipment, and particularly relates to a transfer air cylinder supporting device and hydraulic power tongs. The device comprises a tail column, the tail column is hooped with a supporting frame, one end of the supporting frame penetrates through a limiting shaft and is rotationally connected with a swing mechanism through the limiting shaft, the swing mechanism is connected with a mounting frame in a swinging mode, and the mounting frame is fixedly connected with a cylinder body of a transfer air cylinder in a hooping mode. The transferring air cylinder swings in the swing mechanism through the mounting frame and rotates at the top end of the supporting frame through the swing mechanism at the same time. The transferring air cylinder is high in supporting force, solves the problem that torque output is affected by the dead weight of the transferring air cylinder when the hydraulic power tongs are screwed on and screwed off, and meanwhile has the function of adjusting the using angle of the transferring air cylinder, so that the hydraulic power tongs can move to the operation position more flexibly and accurately, and the working efficiency is improved. And the operation effect and efficiency of petroleum and natural gas are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil and gas drilling and repairing equipment, and in particular relates to a transfer cylinder supporting device and a hydraulic power tong. Background Art

[0002] During oil and gas drilling and well repair operations, hydraulic power tongs are usually used to mechanically thread pipes or drill tools, which greatly reduces the labor intensity of drilling and well repair workers, avoids or reduces the occurrence of injury accidents, and also reduces the occurrence of pipe or drill tool tripping accidents. The hydraulic power tongs are mostly moved and reset by the transfer cylinder during use. Due to the fast extension and retraction rate of the transfer cylinder, it is very easy to cause the drill pipe to bend and deviate from the work position, and even cause the piston rod of the transfer cylinder to be unstable and bent, and the retraction rate is slow, which is very likely to cause oil leakage and contaminate the operating equipment. Therefore, manual operation experience is currently used to visually control the timing of air intake and air cutoff of the transfer cylinder to reduce the impact force. This method has high labor intensity and work position limitations, and it is difficult to effectively ensure the position of the hydraulic power tongs, which greatly affects the efficiency of oil and gas operations.

[0003] There are studies in the prior art on the problems caused by manual visual control of the transfer cylinder air intake and air cut-off, such as patent application CN109372449A - a transfer device for power tongs, which controls the air intake and air cut-off of the transfer cylinder through a one-way valve, a mechanical valve, a three-position five-way air valve and a gas-controlled reversing valve, solving the problems of labor intensity and workstation limitations caused by the current manual visual control of the transfer cylinder air intake and air cut-off. However, the existing power tong transfer device can only ensure the moving position of the hydraulic power tongs, but it is difficult to effectively guarantee the torque output when the power tongs are shackled, thereby affecting the effect and efficiency of oil and gas operations. Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a transfer cylinder support device and a hydraulic power tong to solve the problem that the current power tong transfer device is difficult to effectively ensure the torque output when the power tong is put on and broken off, thereby affecting the effect and efficiency of oil and gas operations.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transfer cylinder support device, including a tail column, a support frame is sleeved on the tail column, one end of the support frame passes through a limit axis and is rotatably connected to a swivel mechanism via the limit axis, a mounting frame is swingably connected to the swivel mechanism, the mounting frame is fixedly connected to the cylinder body of the transfer cylinder in a sleeve-type manner, the transfer cylinder swings inside the swivel mechanism via the mounting frame and simultaneously rotates to the end top of the support frame via the swivel mechanism.

[0006] Furthermore, the support frame includes a crossbeam and a support beam, the support beam is obliquely fixed to the lower part of the crossbeam, one end of the crossbeam is fixed with a clamp A and is clamped on the tail column through the clamp A, the other end of the crossbeam is fixed with an ear seat at the bottom and is fixedly connected to one end of the support beam through the ear seat, and the top of the end is fixedly connected with a limit plate that is arranged through the limit shaft, and the limit plate is connected to the slewing mechanism in a limited rotation manner through the limit shaft.

[0007] Furthermore, one end of the support beam passes through a fixed axis A and is fixed to the bottom of the other end of the cross beam through the fixed axis A and the ear seat, the other end of the support beam passes through a fixed axis B and is fixedly connected to a clamp B through the fixed axis B, and the clamp B is clamped on the tail column and arranged side by side with the clamp A relative to the tail column.

[0008] Furthermore, the rotating mechanism includes a rotating plate and a bracket, the bracket is fixed to the top of the rotating plate, the bottom of the rotating plate is fixedly connected to the limit shaft and is limited by the limit shaft to the middle of the limit plate and is simultaneously rotated at the end top of the beam through the limit plate and the limit shaft; the bracket is arranged to be a U-shaped structure, a rotating shaft is suspended through each of the inner walls on both sides of the bracket and is suspended and swingably connected to the mounting frame through the rotating shaft, a pressure plate is fixed to the end of the rotating shaft, and the pressure plate is fixed to the outer ends of the two side walls of the bracket.

[0009] Furthermore, the mounting frame includes a mounting base and a pressure plate, the pressure plate is fixed in a covering manner on the top of the mounting base, the interior of the mounting base and the pressure plate form a cavity and are clamped on the cylinder body of the transfer cylinder through the cavity; a mounting hole is respectively opened on the two side walls of the mounting base and are rotationally connected to two rotating shafts through the mounting holes and are simultaneously suspended and swung in the U-shaped groove of the bracket through the mounting holes and the rotating shafts.

[0010] In addition to the above technical solutions, there is also a hydraulic power tongs with the transfer cylinder support device, the tail end of the hydraulic power tongs is fixedly connected to the piston rod end of the transfer cylinder, the cylinder body of the transfer cylinder is clamped in the mounting frame and swings up and down in the bracket of the rotating mechanism through the mounting frame and at the same time rotates left and right on the support frame through the rotating mechanism.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model adopts the arrangement of the sleeve support frame on the tail column, so that the supporting force of the transfer cylinder is greatly improved, and the problem of the torque output of the transfer cylinder being affected by the deadweight of the transfer cylinder is effectively avoided. The rotation and swinging action of the slewing mechanism and the mounting frame are used to enable the support device to adjust the use angle of the transfer cylinder, so that the hydraulic power tongs can be more flexibly and accurately moved to the working position under the adjustment of the transfer cylinder, effectively improving the reliability and stability of the hydraulic power tongs in breaking the buckle, and ensuring the operation effect and efficiency of oil and gas;

[0013] 2. The utility model adopts the setting of tilting and fixing the support beam at the lower part of the cross beam, so that the slewing mechanism can rotate more smoothly on the support frame, and at the same time, the mounting frame can swing smoothly on the slewing mechanism, ensuring the stability of the angle adjustment of the transfer cylinder. By utilizing the clamping effect of the clamp, the cross beam and the support beam can be stably suspended on one side of the tail column, so that the supporting force of the transfer cylinder is greatly improved, effectively improving the stability of the movement of the hydraulic power tongs, and ensuring the torque output when the hydraulic power tongs are shackled;

[0014] 3. The utility model uses the limit plate and the limit shaft to rotate the rotating plate at the top of the beam end, so that the transfer cylinder has the function of left and right adjustment, so that the hydraulic power tongs can move left and right more flexibly under the left and right adjustment of the transfer cylinder, ensuring the stability of the left and right movement of the hydraulic power tongs. The rotating shaft is suspended on the inner walls of both sides of the U-shaped bracket, so that the mounting frame can swing in the U-shaped groove of the bracket under the action of the rotating shaft, so that the transfer cylinder swings with the swing of the hydraulic power tongs under the fixation of the mounting frame, effectively improving the flexibility of the transfer cylinder angle adjustment and ensuring the stability of the movement of the hydraulic power tongs;

[0015] 4. The utility model forms a cavity by installing a base and a pressure plate, so that the cylinder body of the transfer cylinder can be firmly clamped in the cavity, which effectively improves the firmness of the transfer cylinder. The mounting hole and the rotating shaft are matched to give the transfer cylinder an up and down adjustment function, so that the hydraulic power tongs can move up and down more flexibly under the up and down adjustment of the transfer cylinder, effectively improving the stability of the hydraulic power tongs in the up and down movement, and effectively improving the reliability and stability of the buckle on the hydraulic power tongs, ensuring the operation effect and efficiency of oil and natural gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the side structure of

[0018] Figure 3It is a structural schematic diagram of the support frame of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the side section of the rotary mechanism of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the side cross section of the mounting frame of the utility model.

[0021] Among them: 1. Transfer cylinder; 2. Tail column; 3. Support frame; 301. Crossbeam; 302. Support beam; 4. Limiting shaft; 5. Rotating mechanism; 501. Rotating plate; 502. Bracket; 6. Mounting frame; 601. Mounting base; 602. Pressure plate; 7. Clamp A; 8. Ear seat; 9. Limiting plate; 10. Limiting bolt; 11. Fixed shaft A; 12. Fixed shaft B; 13. Clamp B; 14. Rotating shaft; 15. Pressure plate; 16. Cavity; 17. Mounting hole; 18. Hydraulic power pliers. DETAILED DESCRIPTION

[0022] The following examples are used to further illustrate the content of the utility model, but do not limit the application of the utility model. Embodiment 1:

[0023] See also Figure 1-Figure 5 A transfer cylinder supporting device comprises a tail column 2 for fixing a transfer cylinder 1, a support frame 3 for supporting the transfer cylinder 1 is sleeved on the tail column 2, a limiting shaft 4 for connecting a rotary mechanism 5 is passed through one end of the support frame 3, and the rotary mechanism 5 for driving the transfer cylinder 1 to rotate left and right is rotatably connected through the limiting shaft 4, a mounting frame 6 for driving the transfer cylinder 1 to swing up and down is swingably connected to the rotary mechanism 5, the mounting frame 6 is fixedly connected to the cylinder body of the transfer cylinder 1 in a sleeve-type clamping manner, and the transfer cylinder 1 swings inside the rotary mechanism 5 through the mounting frame 6 and simultaneously rotates on the end top of the support frame 3 through the rotary mechanism 5.

[0024] See also Figure 1-Figure 3 The support frame 3 includes a crossbeam 301 for mounting the slewing mechanism 5 and a support beam 302 for strengthening the support force of the crossbeam 301. The support beam 302 is tilted and fixed to the lower part of the crossbeam 301;

[0025] A clamp A7 for clamping the tail column 2 is fixed at one end of the cross beam 301 and is clamped on the tail column 2 through the clamp A7. An ear seat 8 for connecting the support beam 302 is fixed at the bottom of the other end of the cross beam 301 and is fixedly connected to one end of the support beam 302 through the ear seat 8, and a limit plate 9 for fixing the slewing mechanism 5 is fixedly connected to the top of the end. A limit bolt 10 for limiting the rotation range of the slewing mechanism 5 is fixed at each of the left and right ends of the limit plate 9. The limit plate 9 is intersected with the limit shaft 4 and is rotatably connected to the slewing mechanism 5 through the limit shaft 4.

[0026] One end of the support beam 302 passes through a fixed axis A11 for fixation and is fixed to the bottom of the other end of the cross beam 301 through the fixed axis A11 and the ear seat 8 (the fixed axis A11 and the ear seat 8 are arranged through each other). The other end of the support beam 302 passes through a fixed axis B12 for fixation and is fixedly connected to a clamp B13 for clamping the tail column 2 through the fixed axis B12. The clamp B13 clamps the tail column 2 and is arranged side by side with the clamp A7 relative to the tail column 2.

[0027] See also Figure 1-Figure 2 and Figure 4 The rotary mechanism 5 includes a rotary disk 501 for rotating and a bracket 502 for installing the mounting frame 6. The bracket 502 is fixed to the top of the rotary disk 501. The bottom of the rotary disk 501 is fixedly connected to the limit shaft 4 and is limitedly clamped between two limit bolts 10 through the limit shaft 4 and is rotated at the end top of the beam 301 through the limit disk 9 and the limit shaft 4, so that the transfer cylinder 1 has the function of left and right adjustment;

[0028] The bracket 502 is configured as a U-shaped structure, and a rotating shaft 14 for suspending the mounting frame 6 is suspended through each of the inner walls on both sides of the bracket 502. A pressure plate 15 for limiting the rotating shaft 14 is fixed to the end of the rotating shaft 14. The pressure plate 15 is fixed to the outer ends of the two side walls of the bracket 502. The bracket 502 is suspended and swingably connected to the mounting frame 6 through two rotating shafts 14.

[0029] See also Figure 1-Figure 2 and Figure 5 The mounting frame 6 includes a mounting base 601 for mounting the transfer cylinder 1 and a pressing plate 602 for cooperating with the mounting base 601 to clamp the transfer cylinder 1. The pressing plate 602 is fixed to the top of the mounting base 601 in a covering manner. The interior of the mounting base 601 and the pressing plate 602 form a cavity 16 and are clamped on the cylinder body of the transfer cylinder 1 through the cavity 16.

[0030] A mounting hole 17 is respectively provided on the two side walls of the mounting base 601, and is rotatably connected to the two rotating shafts 14 through the mounting holes 17. At the same time, it is suspended and swung in the U-shaped groove of the bracket 502 through the mounting holes 17 and the rotating shafts 14, so that the transfer cylinder 1 has the function of up and down adjustment.

[0031] The working principle and use process of this embodiment are as follows: Figure 1-Figure 5It is shown that after the transfer cylinder support device is assembled, it is only necessary to install the entire transfer cylinder support device on the end of the hydraulic power tongs 18, so as to greatly improve the supporting force of the transfer cylinder 1, thereby solving the problem that the torque output when the hydraulic power tongs 18 are unfastened due to the self-weight of the transfer cylinder 1, and at the same time, the support device can also have the function of adjusting the use angle of the transfer cylinder 1, so that the hydraulic power tongs 18 can be more flexibly and accurately moved to the working position under the angle adjustment of the transfer cylinder 1, which effectively improves the reliability and stability of the unfastening of the hydraulic power tongs 18 and ensures the operation effect and efficiency of oil and gas.

[0032] Since the transfer cylinder 1 is controlled by a control box or controller (the functions and structures of conventional equipment such as a control box or controller are well known in the art, and the connection settings are also common knowledge, so no further explanation is given here, and it is not shown in the accompanying drawings), and since the hydraulic power tongs 18 are in a suspended state when in use, when the hydraulic power tongs 18 need to be transferred, the operator must first suspend the hydraulic power tongs 18 through a crane (the functions and structures of conventional equipment such as a crane are well known in the art, and the connection settings are also common knowledge, so no further explanation is given here, and it is not shown in the accompanying drawings), and then fix the hydraulic power tongs 18 to the piston rod end of the transfer cylinder 1, and then use the crane to transfer the hydraulic power tongs 18 to the piston rod end of the transfer cylinder 1. Adjust the position of the hydraulic power tongs 18. At this time, the transfer cylinder 1 will move with the movement of the hydraulic power tongs 18 under the combined action of the up and down swing of the mounting frame 6 and the left and right rotation of the slewing mechanism 5 until the hydraulic power tongs 18 reaches the set position, and then the piston rod of the transfer cylinder 1 is controlled to extend through the control box or controller, and the hydraulic power tongs 18 will be pushed to the working position under the extension of the piston rod of the transfer cylinder 1. After the operation of the hydraulic power tongs 18 is completed, the piston rod of the transfer cylinder 1 is controlled to retract through the control box or controller, and the hydraulic power tongs 18 will be driven to the initial position under the retraction of the piston rod of the transfer cylinder 1, so as to prepare for the next operation of the hydraulic power tongs 18. Embodiment 2:

[0033] See also Figure 1-Figure 5 As another object of the utility model, a hydraulic power tong is provided, in which the above transfer cylinder support device is provided, the tail end of the hydraulic power tong 18 is fixedly connected to the piston rod end of the transfer cylinder 1, the cylinder body of the transfer cylinder 1 is clamped in the mounting frame 6 and swings up and down in the bracket 502 of the rotating mechanism 5 through the mounting frame 6 and rotates left and right on the support frame 3 through the rotating mechanism 5. Therefore, the hydraulic power tongs can obtain any beneficial effect of the transfer cylinder support device described above, which will not be repeated here.

Claims

1. A transfer cylinder support device, comprising a tail column, characterized in that: A support frame is sleeved on the tail column, one end of the support frame passes through a limit shaft and is rotatably connected to a slewing mechanism via the limit shaft, a mounting frame is swingably connected to the slewing mechanism, the mounting frame is sleeve-clamped and fixedly connected to the cylinder body of the transfer cylinder, the transfer cylinder swings inside the slewing mechanism via the mounting frame and simultaneously rotates to the end top of the support frame via the slewing mechanism.

2. A transfer cylinder support device according to claim 1, characterized in that: The support frame comprises a crossbeam and a support beam, and the support beam is obliquely fixed to the lower part of the crossbeam.

3. A transfer cylinder support device according to claim 2, characterized in that: A clamp A is fixed to one end of the crossbeam and is clamped on the tail column through the clamp A. An ear seat is fixed to the bottom of the other end of the crossbeam and is fixedly connected to one end of the support beam through the ear seat. The top of this end is fixedly connected to a limit plate that is arranged through the limit shaft.

4. A transfer cylinder support device according to claim 3, characterized in that: One end of the support beam passes through a fixed shaft A and is fixed to the bottom of the other end of the cross beam through the fixed shaft A and an ear seat. The other end of the support beam passes through a fixed shaft B and is fixedly connected to a clamp B through the fixed shaft B. The clamp B is clamped on the tail column and is arranged side by side with the clamp A relative to the tail column.

5. The transfer cylinder support device according to claim 3, characterized in that: The limiting plate is connected to the rotary mechanism in a limiting rotational manner via a limiting shaft.

6. A transfer cylinder support device according to claim 5, characterized in that: The rotating mechanism includes a rotating disk and a bracket, the bracket is fixed to the top of the rotating disk, the bottom of the rotating disk is fixedly connected to the limiting shaft and is limitedly clamped in the middle of the limiting disk through the limiting shaft and is simultaneously rotated on the end top of the beam through the limiting disk and the limiting shaft.

7. A transfer cylinder support device according to claim 6, characterized in that: The bracket is configured as a U-shaped structure, with a rotating shaft suspended through each of the inner walls on both sides of the bracket and connected to the mounting frame in a suspended swinging manner through the rotating shaft. A pressure plate is fixed at the end of the rotating shaft, and the pressure plate is fixed to the outer ends of the two side walls of the bracket.

8. A transfer cylinder support device according to claim 7, characterized in that: The mounting frame includes a mounting base and a pressing plate, wherein the pressing plate is fixed to the top of the mounting base in a covering manner, and the interior of the mounting base and the pressing plate form a cavity and are clamped on the cylinder body of the transfer cylinder through the cavity.

9. A transfer cylinder support device according to claim 8, characterized in that: A mounting hole is respectively provided on the two side walls of the mounting base and is rotatably connected to the two rotating shafts through the mounting holes and is simultaneously suspended and swung in the U-shaped groove of the bracket through the mounting holes and the rotating shafts.

10. A hydraulic power tongs, characterized in that: It comprises a transfer cylinder support device as described in any one of claims 1 to 9, wherein the piston rod end of the transfer cylinder is fixedly connected to the tail end of the hydraulic power tongs, the cylinder body of the transfer cylinder is clamped in the mounting frame and swings up and down in the bracket of the rotating mechanism through the mounting frame and simultaneously rotates left and right on the support frame through the rotating mechanism.

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