Hydraulic top drive conveying device

Abstract

The utility model relates to the technical field of oil field on-site hoisting tools, in particular to a hydraulic top drive conveying device which comprises a hollow support matched with a driving head and provided with an opening in the middle, a sliding support is arranged at the bottom of the hollow support, the rear end of the lower portion of the sliding support is hinged to a supporting base, and a parallel pushing telescopic cylinder is arranged at the rear end of the sliding support. Vertical lifting telescopic cylinders are arranged on the two sides of the sliding support, the fixed ends of the vertical lifting telescopic cylinders are connected with the supporting base, and the movable ends of the vertical lifting telescopic cylinders are connected with the sliding support. According to the hydraulic top drive conveying device, the hollow support which is matched with the driving head and provided with the opening in the middle is used for supporting, a stress point is transferred to a stress part in the middle of the driving head, and damage to parts caused by stress of the rotary short section is prevented; the working process of the hoisting machine is reduced through the parallel pushing telescopic cylinder and the up-down lifting telescopic cylinder, and conveying and returning work of the driving head can be completed by one person.

Description

Technical Field

[0001] The utility model relates to the technical field of oil field on-site hoisting tools, in particular to a hydraulic top drive transmission device. Background Art

[0002] As Daqing Oilfield enters the late stage of development, the number of damaged casings in oil and water wells is increasing. Currently, top drive operations account for an increasingly large proportion of underground operations in Daqing Oilfield. The top drive device weighs 1,000 kilograms and consists of a hoisting short section, a rotating body and a rotating connecting short section. The rotating connecting short section is installed at the bottom of the device through a hoisting prevention. In the prior art, when a well repair rig is used for hoisting, the bottom rotating short section must be subjected to force as a fulcrum. If the lower rotating short section is subjected to force or serves as a force point, it is easy to cause the rotating short section and the body to be out of center, the sealing ring is damaged or the parts are damaged, making the top drive device unable to be used normally. Therefore, in view of the above shortcomings, a hydraulic top drive transmission device is proposed. Summary of the invention

[0003] The utility model aims to provide a hydraulic top drive transmission device to overcome the defects in the prior art that a large hook of a workover rig is used for hoisting, and a bottom rotating short-circuit will definitely be used as a fulcrum to bear force, which may easily cause the rotating short section and the body to be out of center, the sealing ring or parts to be damaged, and the top drive device cannot be used normally.

[0004] In order to achieve the above object, the utility model provides a hydraulic top drive transmission device, comprising:

[0005] Hollow brackets, support bases and sliding brackets;

[0006] The hollow bracket is bilaterally symmetrical and its shape matches the shape of the driving head. A through opening is provided in the middle of the hollow bracket.

[0007] The hollow bracket is connected to the sliding bracket, and the sliding bracket includes a rectangular sliding part and a fixed part. The long sides of the fixed part and the sliding part are connected by a sliding track, and the bottom end of the hollow bracket is connected to the sliding part; the rear end of the fixed part is provided with a parallel push telescopic cylinder, the fixed end of the parallel push telescopic cylinder is connected to the rear end of the fixed part, and the movable end is connected to the sliding part;

[0008] The rear end of the sliding bracket is hinged to one end of the supporting base, and upper and lower lifting and telescopic cylinders are symmetrically provided on both sides of the fixed part of the sliding bracket. The upper and lower lifting and telescopic cylinders are arranged in the vertical direction, and the fixed ends of the upper and lower lifting and telescopic cylinders are connected to the supporting base, and the movable ends are connected to the fixed part of the sliding bracket.

[0009] Preferably, a plurality of anti-drop holes and anti-drop stops are evenly arranged on the hollow bracket.

[0010] Preferably, a counterweight is provided in the support base.

[0011] Preferably, a limit block is provided on the sliding track of the sliding bracket.

[0012] Preferably, walking wheels are evenly arranged at the bottom end of the support base.

[0013] Preferably, the upper surface height of the hollow bracket is higher than that of the sliding bracket.

[0014] Preferably, the parallel pushing telescopic cylinder and the up and down lifting telescopic cylinder are both hydraulic cylinders and are connected to a hydraulic station.

[0015] Preferably, the width of the opening is smaller than the force-bearing part in the middle of the driving head, and the depth is greater than the length of the rotary short circuit.

[0016] The hydraulic top drive transmission device provided by the utility model has the following beneficial effects:

[0017] The hydraulic top drive transmission device provided by the utility model supports the drive head through a hollow anti-skid bracket with an opening in the middle to transfer the stress point to the receiving part in the middle of the drive head, thereby preventing the lower rotating short section from being stressed or serving as a stress point, which may easily cause the rotating short section and the body to be non-concentric, the sealing ring to be damaged or the parts to be damaged, and the top drive device to be unable to be used normally; the device is pushed to the vicinity of the installation point by pushing the telescopic cylinder in parallel and the up and down lifting telescopic cylinder, thereby reducing the working process of the hoisting machine and reducing the fuel loss; the conveying and returning work of the drive head can be completed by one person operating the parallel pushing telescopic cylinder and the up and down lifting telescopic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the structural diagram of the hydraulic top drive transmission device.

[0019] Legend:

[0020] 1. Hollow bracket; 2. Parallel push compression cylinder; 3. Up and down lifting telescopic cylinder; 4. Support base; 5. Sliding bracket. Implementation

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1As shown, the structure of the hydraulic top drive transmission device provided by the utility model comprises: a hollow bracket 1, a support base 4 and a sliding bracket 5. The hollow bracket 1 is used as the main force-bearing part of the device. During the working process, the drive head is placed on the hollow bracket 1 to support the drive head. After the drive head is loaded, the position of the hollow bracket 1 can be changed to transport the drive head to the vicinity of the installation position, thereby reducing the workload of the hoisting equipment during the hoisting process, reducing fuel consumption, and improving the economy of the device.

[0023] Among them, the hollow bracket 1 is stacked on the left and right and the upper surface matches the shape of the drive head. During the working process, the drive head is supported on the upper surface of the hollow bracket 1 of the drive head. A through opening is provided in the middle of the weight of the hollow bracket 1. When the drive head is on the hollow bracket 1 and subsequently hoisted, the force-supporting part of the drive head is the large-area force-bearing part of its middle section. During the hoisting process, the drive head gradually stands upright under the action of the hoisting equipment. At this time, the rotating short section at the bottom falls into the middle opening and is suspended in the air, without contacting the ground or the upper surface of the hollow bracket 1. The gravity of the drive head is completely supported by the large-size part in the middle of the drive head and the contact with the upper surface of the hollow bracket 1, which prevents the rotating short section from being damaged by force during the hoisting process and the position displacement and the non-concentricity of the drive head body, resulting in the circulation of the sealing ring or other parts, thereby improving the integrity and safety of the drive head device during the hoisting process and ensuring the construction efficiency of the hoisting work.

[0024] It should be noted that the maximum opening width of the upper surface of the hollow bracket 1 does not exceed the size of the pressure-bearing part in the middle of the drive head, so as to prevent the drive head from falling from the middle opening during operation, causing damage to the device and failure of the lifting work; the depth of the opening is greater than the length of the rotating short section at the bottom of the drive head, so as to prevent the rotating short section from falling into the opening during the lifting process and contacting the ground with force, causing wear or displacement of the rotating short section, affecting the installation and normal operation of the drive head, thereby improving the stability of the device.

[0025] In addition, a plurality of anti-drop holes are provided on the upper surface of the hollow bracket 1, and an anti-drop block is provided in each anti-drop hole perpendicular to the upper surface of the hollow bracket 1. When the drive head is placed on the hollow bracket 1, the anti-drop block will contact the drive head to fix the position of the drive head, preventing the drive head from sliding down along the upper surface of the hollow bracket 1 when the hollow bracket 1 is tilted, thereby improving the stability and safety of the device during operation. Generally, the height of the hollow bracket 1 is higher than the sliding bracket 5, preventing the drive head or the lifting equipment from colliding with the sliding bracket 5 during the lifting process, thereby preventing damage to the drive head or the device body, thereby further improving the safety of the device.

[0026] In the utility model, the sliding bracket includes a fixed part and a sliding part, and the fixed part and the sliding part are rectangles of matching sizes. Sliding rails are provided on the two long sides of the fixed part and the sliding part to connect the fixed part and the sliding part. After the sliding part is subjected to force, it can move forward and backward on the fixed part along the sliding rails. The bottom end of the hollow bracket 1 is connected to the sliding part, and the position of the hollow bracket 1 is adjusted by moving the sliding part.

[0027] Among them, baffles are provided on the long sides on both sides and the short sides at the rear end of the fixed part of the sliding bracket 5, and the sliding track is installed on the inner walls of the baffles on the long sides on both sides. After the sliding bracket 5 is installed, the baffles on both sides and the rear end fix the position of the sliding part, and the sliding part can only slide forward and extend out of the fixed part to prevent the sliding bracket 5 structure from disintegrating during operation, thereby ensuring the normal operation of the device.

[0028] It should be noted that a limit block is provided on the sliding track. When the sliding part moves forward along the sliding track and contacts the limit block, the sliding track cannot continue to move forward, preventing the sliding part from extending too long from the fixed part during operation, causing the center of gravity of the device to be unstable, and preventing the device from tilting.

[0029] like Figure 1 As shown, the sliding bracket 5 is installed on the supporting base 4, and the rear end of the sliding bracket 5 is hinged to the supporting base 4 so that the sliding bracket 5 and the supporting base 4 can open and close up and down around the connection point. By adjusting the opening and closing degree of the sliding bracket 5, the height of the hollow bracket 1 connected to the sliding part can be moved up and down.

[0030] Among them, the support base 4 is provided with a counterweight block to increase the overall stability of the device, prevent the device from tipping over due to the center part during the process of adjusting the position after the drive head is transferred during operation, and improve the stability of the device after the position is fixed.

[0031] It should be noted that a plurality of running wheels are provided at the bottom of the support base 4 to improve the flexibility of the device during movement and reduce the difficulty and workload of transporting the device.

[0032] In the utility model, a parallel-pushing telescopic cylinder 2 is provided on the sliding bracket 5, a fixed end of the parallel-pushing telescopic cylinder 2 is connected to the fixed part of the sliding bracket 5, and a movable end is connected to the sliding part of the sliding bracket 5, and the sliding part of the sliding bracket 5 is pushed forward and backward by controlling the extension and contraction of the parallel-pushing telescopic cylinder 2; an upper and lower lifting telescopic cylinder 3 is respectively provided on both sides of the sliding bracket 5, and the two upper and lower lifting telescopic cylinders 3 are symmetrically arranged, the fixed ends of the upper and lower lifting telescopic cylinders 3 are installed on the supporting base 4, and the movable ends are connected to the side faces of the sliding bracket 5, and the sliding bracket 5 is pushed up and down to open and close by controlling the extension and contraction of the two upper and lower lifting telescopic cylinders 3.

[0033] The parallel push telescopic cylinder 2 and the up and down lifting telescopic cylinder 3 are both hydraulic cylinders and are connected to the hydraulic station. The staff can control the telescopic degree of the parallel push telescopic cylinder 2 and the up and down lifting telescopic cylinder 3 by operating the action of the hydraulic station. By controlling the parallel push telescopic cylinder 2 and the up and down lifting telescopic cylinder 3 to transport the hollow bracket 1 to the working position, the whole process of transporting and returning the driving head only requires one person to operate, which greatly reduces the working time and workload and improves the working efficiency of the device.

[0034] Combination Figure 1 The following is a detailed description of the steps of this hydraulic top drive conveyor structure when performing conveying work:

[0035] Step 1: Push the device to the designated working position, place the assembled drive head on the upper surface of the hollow platform, and use the hydraulic station to control the parallel push telescopic cylinder and the up and down lifting telescopic cylinder to transport the hollow platform and the drive head to the target position. In this process, the parallel push telescopic cylinder and the up and down lifting telescopic cylinder control the sliding bracket to rise upward and extend the sliding part and the hollow bracket forward.

[0036] Step 2: Lift the drive head by the lifting device. At this time, the drive head is lifted by the lifting device, and the rotating short section at the bottom of the drive head falls into the middle opening and is gradually lifted upward with the drive head.

[0037] Step 3: Control the parallel push telescopic cylinder and the up and down lifting telescopic cylinder to retract and reset the device.

[0038] Combination Figure 1 The following is a detailed description of the steps of this hydraulic top drive conveyor structure when performing recovery work:

[0039] Step 1: Push the device to the designated working position, and use the hydraulic station to control the parallel push telescopic cylinder and the up and down lifting telescopic cylinder to transport the hollow platform to the target position. In this process, the parallel push telescopic cylinder and the up and down lifting telescopic cylinder control the sliding bracket to rise upward and extend the sliding part and the hollow bracket forward.

[0040] Step 2: Lift the drive head by the lifting device and place it on the upper surface of the hollow platform. At this time, the drive head is lifted by the lifting device, and during the falling process of the drive head, the rotating short section at the bottom of the drive head falls into the middle opening, and the middle pressure-bearing part of the drive head contacts and bears pressure on the upper surface of the hollow platform.

[0041] Step 3: Control the parallel push telescopic cylinder and the up and down lifting telescopic cylinder to retract and reset the device.

[0042] Step 4: Remove the drive head from the device and recycle it.

[0043] In the above two operation steps, the whole process only requires one staff member to control the hydraulic station, which greatly reduces the workload and number of personnel required in the recovery and transportation work, and reduces the work cost.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Hydraulic top drive transmission device, characterized in that: include: A hollow bracket (1), a supporting base (4) and a sliding bracket (5); The hollow bracket (1) is bilaterally symmetrical and its shape matches the shape of the driving head; a through opening is provided in the middle of the hollow bracket (1); The hollow bracket (1) is connected to the sliding bracket (5), and the sliding bracket (5) comprises a rectangular sliding part and a fixed part. The long sides of the fixed part and the sliding part are connected via a sliding track. The bottom end of the hollow bracket (1) is connected to the sliding part. A parallel push telescopic cylinder (2) is provided at the rear end of the fixed part. The fixed end of the parallel push telescopic cylinder (2) is connected to the rear end of the fixed part, and the movable end is connected to the sliding part. The rear end of the sliding bracket (5) is hingedly connected to one end of the supporting base (4), and upper and lower lifting and telescopic cylinders (3) are symmetrically provided on both sides of the fixed part of the sliding bracket (5). The upper and lower lifting and telescopic cylinders (3) are arranged in the vertical direction, and the fixed ends of the upper and lower lifting and telescopic cylinders (3) are connected to the supporting base (4), and the movable ends are connected to the fixed part of the sliding bracket (5).

2. The hydraulic top drive transmission device according to claim 1, characterized in that: The hollow bracket (1) is evenly provided with a plurality of anti-drop holes and anti-drop stops.

3. The hydraulic top drive transmission device according to claim 1, characterized in that: A counterweight block is provided inside the support base (4).

4. The hydraulic top drive transmission device according to claim 1, characterized in that: A limit block is provided on the sliding track of the sliding bracket (5).

5. The hydraulic top drive transmission device according to claim 1, characterized in that: The bottom end of the support base (4) is evenly provided with running wheels.

6. The hydraulic top drive transmission device according to claim 1, characterized in that: The upper surface of the hollow bracket (1) is higher than the sliding bracket (5).

7. The hydraulic top drive transmission device according to claim 1, characterized in that: The parallel pushing telescopic cylinder (2) and the up and down lifting telescopic cylinder (3) are both hydraulic cylinders and are connected to a hydraulic station.

8. The hydraulic top drive transmission device according to claim 1, characterized in that: The width of the opening is smaller than the force-bearing part in the middle of the driving head, and the depth is greater than the length of the rotary short circuit.

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