Heavy-load top drive transporting and lifting mechanism

Abstract

The invention relates to the technical field of heavy-load transportation, and provides a heavy-load top drive transporting and hoisting mechanism which comprises a transporting part, a telescopic part and a control part, the transporting part is hinged to a supporting plate, one end of the telescopic part is connected with the transporting part, the other end of the telescopic part is hinged to the supporting plate, and the control part is arranged in the telescopic part and comprises an unloading control valve set and a protection valve set which are connected. The unloading control valve set and the protection valve set are both connected with the telescopic part so as to control the telescopic part to lift the conveying part. The telescopic part is controlled by the control part to start to work, the telescopic part can drive the conveying part to ascend and descend, operation such as placing, transporting, lifting to the vertical state and lowering to the transporting state of the top drive device on the conveying part is achieved, and on-site installation operation of the large-tonnage top drive is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of heavy-load transportation, and in particular relates to a moving and lifting mechanism of a heavy-load top drive. Background Art

[0002] The essential advanced equipment (drilling equipment) for modern drilling operations usually uses a motor or motor to drive the main shaft for drilling, and the auxiliary actions are all completed by driving the relevant actuators through the hydraulic system. However, in ultra-deep wells of 15,000 meters, the weight of the top drive exceeds 60 tons. It is difficult to complete the installation of the top drive and the derrick in a conventional way. The top drive must first be erected and placed on the drilling platform before it can be integrated into the drilling derrick space, which makes installation inconvenient, the operation complicated, and a lot of manpower and material resources wasted. Summary of the invention

[0003] In view of the above problems, the present invention proposes a moving and lifting mechanism for a heavy-loaded top drive, comprising: a transport part, a telescopic part and a control part, wherein the transport part is hinged on a pallet, one end of the telescopic part is connected to the transport part, and the other end is hinged to the pallet, the control part is arranged in the telescopic part, the control part comprises a connected unloading control valve group and a protective valve group, the unloading control valve group and the protective valve group are both connected to the telescopic part to control the lifting of the transport part by the telescopic part.

[0004] Optionally, the unloading control valve group includes an unloading control valve and a reversing valve connected to each other, the unloading control valve is connected to the protection valve group, and the reversing valve is electrically connected to the telescopic part.

[0005] Optionally, the protection valve group includes a safety valve and a protection valve, the unloading control valve is connected to the safety valve, the safety valve is connected to the protection valve, and the safety valve and the protection valve are both electrically connected to the telescopic part.

[0006] Optionally, a support seat is provided on one end of the support plate, and the transport part is hinged to the support seat via a pin shaft.

[0007] Optionally, a support is provided on the other end of the pallet, and the back of the transport part can be placed on the support.

[0008] Optionally, a plurality of first lifting ears are provided on both sides of the support plate.

[0009] Optionally, the transport portion is an L-shaped structure.

[0010] Optionally, support legs are provided on the transport portion.

[0011] Optionally, two second lifting ears are provided on the transport portion.

[0012] Optionally, the telescopic part is a multi-stage cylinder.

[0013] The transport and lifting mechanism of the heavy-load top drive of the present invention is hinged on a support plate through a transport part, one end of the telescopic part is connected to the transport part, and the other end is hinged to the support plate, the control part is arranged in the telescopic part, the unloading control valve group and the protection valve group in the control part are both connected to the telescopic part, the unloading control valve group can control the telescopic part to lift the transport part, the protection valve group can ensure the safety of the lifting process, the control part controls the telescopic part to start working, the telescopic part can drive the transport part to rise and fall, and realizes the operations of placing, transporting, lifting to an upright state and lowering to a transport state of the top drive device on the transport part, thereby facilitating the installation operation of a large-tonnage top drive on site.

[0014] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of a moving and lifting mechanism of a heavy-load top drive in an embodiment of the present invention is shown;

[0017] Figure 2 A schematic diagram of a control circuit in a heavy-load top drive transport and hoisting mechanism in an embodiment of the present invention is shown;

[0018] Figure 3 A schematic diagram of the control structure of the transport and lifting mechanism of the heavy-load top drive in the embodiment of the present invention is shown;

[0019] Figure 4 It shows a schematic diagram of the erection and horizontal placement of the transport and lifting mechanism of the heavy-load top drive in the embodiment of the present invention;

[0020] Figure 5 A schematic diagram showing the erection of the transport and lifting mechanism of the heavy-load top drive in an embodiment of the present invention is shown;

[0021] Figure 6 A schematic diagram of an operating platform for a heavy-load top drive's transport and hoisting mechanism in an embodiment of the present invention is shown.

[0022] In the figure, 1, transport part; 12, support leg; 11, second lifting eye; 2, telescopic part; 4, support plate; 31, unloading control valve; 33, reversing valve; 32, safety valve; 34, protection valve; 42, support seat; 44, support seat; 43, first lifting eye; 5, operating table. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0024] like Figure 1As shown, the present invention provides a transport and lifting mechanism for a heavy-duty top drive, comprising: a transport part 1, a telescopic part 2 and a control part, wherein the transport part 1 is hinged on a pallet 4, one end of the telescopic part 2 is connected to the transport part 1, and the other end is hinged to the pallet 4, and the control part is arranged in the telescopic part 2, and the control part comprises a connected unloading control valve group 31 and a protective valve group 34, and the unloading control valve group 31 and the protective valve group 34 are both connected to the telescopic part 2 to control the telescopic part 2 to lift the transport part 1. Thus, the placement, transport, lifting to an upright state and lowering to a moving state of the top drive device are realized, which facilitates the installation operation of a large-tonnage top drive on site. When the pallet 4 contacts the ground, it bears the weight of the whole machine and the transport part 1 exceeding 60 tons, so the bottom area of ​​the pallet 4 is relatively large, reducing the pressure per unit area. It should be noted that the telescopic part 2 itself can be telescopic, so as to realize the lifting or lowering of the transport part 1. Of course, when the transport part 1 is lifted, the transport part 1 and the telescopic part 2 will both rotate. The unloading control valve 31 group can extend and retract the telescopic part 2. Optionally, a plurality of universal wheels can be arranged at the bottom of the pallet 4, and the universal wheels are arranged at the four corners of the bottom of the pallet 4, so as to facilitate the movement of the entire mechanism. The universal wheels are detachably arranged at the bottom of the pallet 4. When the equipment is placed on the transport part 1, the universal wheels can be removed so that the pallet 4 can bear the weight. In addition, support legs 12 that can be raised and lowered can be provided at the four corners of the bottom of the pallet 4. When a heavy-loaded top-drive equipment of a certain height needs to be transported, the pallet 4 can be raised by adjusting the lifting and lowering of the support legs 12, so that the universal wheels are no longer in contact with the ground, thereby facilitating the transportation of the heavy-loaded top-drive equipment. When the pallet 4 is no longer required to maintain a certain height position, the support legs 12 are controlled to be gradually retracted until the universal wheels contact the ground. The support legs 12 can be retractable. Of course, the support legs 12 can also be able to be expanded from parallel to the pallet 4 to perpendicular to the pallet 4 to support the pallet 4. The pallet 4 can also be retracted from a vertical state to be parallel to the pallet 4, that is, the support legs 12 can also be hinged on the pallet 4. Furthermore, optionally, in order to facilitate the adjustment of the direction of the pallet 4, a turntable can be set at the center of the bottom of the pallet 4. In order to allow the turntable to contact the ground, a support rod can be set on the turntable. The support rod can be a telescopic support rod, and can also be extended from parallel to the turntable to perpendicular to the turntable to support the turntable. The support rod can also be retracted from a vertical state to be parallel to the pallet 4, that is, the connection between the support rod and the turntable is hinged, so that the reverse direction of the pallet 4 can be adjusted by rotating the turntable, which facilitates the direction adjustment of the transport part 1 on the pallet 4.

[0025] like Figure 2As shown, in one embodiment, the unloading control valve 31 group includes a connected unloading control valve 31 and a reversing valve 33, the unloading control valve 31 is connected to the protection valve 34 group, and the reversing valve 33 is electrically connected to the telescopic part 2. It should be noted that in the normal non-working state, the reversing valve 33 is in the middle position. In normal working state, by controlling the reversing valve 33 to be in the raised state, the telescopic part 2 can be controlled to start extending and lift the transport part 1. When the transport part 1 is raised, one end of the transport part 1 and the telescopic part 2 will rotate on the support plate 4 until the transport part 1 rotates to be perpendicular to the support plate 4. At this time, the telescopic part 2 is fully extended. Of course, the transport part 1 and the telescopic part 2 rotate clockwise. When the transport part 1 needs to be reset, when the reversing valve 33 needs to be controlled to be in the lowered state, one end of the transport part 1 and the telescopic part 2 will rotate on the support plate 4, and the shift direction is counterclockwise. In this process, the telescopic part 2 gradually shrinks until the transport part 1 is placed at the predetermined position, and the telescopic part 2 is fully reset. The unloading control valve 31 is used to unload the load, thereby ensuring that the hydraulic system is in an unloading state and saving energy consumption. When the reversing valve 33 is switched to the cylinder telescopic chamber, the horizontal laying and vertical standing functions of the transport part 1 are completed.

[0026] In one embodiment, the protection valve 34 group includes a safety valve 32 and a protection valve 34. The unloading control valve 31 is connected to the safety valve 32, the safety valve 32 is connected to the protection valve 34, and both the safety valve 32 and the protection valve 34 are electrically connected to the telescopic part 2. Specifically, the safety valve 32 ensures that the telescopic part 2 operates within a safe pressure range; the function of the protection valve 34 can ensure that when an accident occurs, the telescopic part 2 remains in the current position and does not fall suddenly. The safety valve 32 and the protection valve 34 can improve the safety of the lifting and lowering of the transport part 1. Figure 3 As shown, in addition, the unloading control valve 31 and the reversing valve 33 are not only electrically connected, but the reversing valve 33 is also arranged on one side of the unloading control valve 31, and the safety valve 32 is electrically connected to the unloading control valve 31, and the safety valve 32 is arranged on the other side of the unloading control valve 31, and the protection valve 34 is electrically connected to the reversing valve 33 and the unloading control valve 31 respectively, and the protection valve 34 is arranged on one side of the reversing valve 33.

[0027] like Figure 1 As shown, in one embodiment, a support seat 42 is provided on one end of the support plate 4, and the transport portion 1 is hinged to the support seat 42 through a pin. The support seat 42 and the pin enable the transport portion 1 to rotate, so that the transport portion 1 can rotate to be perpendicular to the support plate 4. In addition, the telescopic portion 2 can also be hinged to the support plate 4 through another support seat 42 and another pin.

[0028] In one embodiment, a support 44 is provided on the other end of the support plate 4, and the back of the transport part 1 can be placed on the support 44. The support 44 can form an angle between the transport part 1 and the support plate 4, so that the telescopic part 2 can provide a supporting force to the transport part 1 and support the transport part 1.

[0029] In one embodiment, a plurality of first lifting ears 43 are provided on both sides of the pallet 4. A rope can be fixedly connected through the first lifting ears 43, and then the rope is pulled to realize the movement of the pallet 4 on the ground, so that the pallet 4 and the transport part 1 on the pallet 4 can be conveniently moved to the target location.

[0030] In one embodiment, the transport part 1 is an L-shaped structure. It should be noted that in order to strengthen the transport part 1 of the L-shaped structure, the transport part 1 is formed by two vertical transport plates, and the two ends of a connecting rod or two connecting rods are respectively connected on one side of the two transport plates.

[0031] In one embodiment, support legs 12 are provided on the transport part 1. When one transport plate of the transport part 1 rotates to be perpendicular to the pallet 4, another transport plate of the transport part 1 is parallel to the pallet 4, and the support legs 12 are provided on this transport plate, so as to facilitate supporting the transport part 1, and make the equipment placed on the transport part 1 more stable, because the support legs 12 can contact the ground, and also play a supporting role for the transport part 1.

[0032] In one embodiment, two second lifting ears 11 are provided on the transport part 1. The second lifting ears 11 can assist the telescopic part 2 to pull up the transport part 1, so that the transport part 1 can be more easily rotated to the target location. Of course, if the telescopic part 2 fails, the second lifting ears 11 can also be directly pulled by the crane, so that the transport part 1 can also be rotated to the target location.

[0033] In one embodiment, the telescopic part 2 is a multi-stage cylinder. The transport jacking can be realized by the multi-stage cylinder. Optionally, the multi-stage cylinder can be a hydraulic or pneumatic cylinder. Of course, the telescopic part 2 can also be other liftable parts.

[0034] like Figure 6 As shown, optionally, the mechanism further comprises a lifting operating platform 5, through which the operation of each valve group is controlled.

[0035] like Figure 4As shown above, in summary, the present invention provides a transport and lifting mechanism for a heavy-loaded top drive, and is equipped with a corresponding control unit. Among them, the mechanical mechanism mainly includes a top transport unit 1, which can be called a placement frame (also called a transport frame), a telescopic unit 2 and a placement pallet 4. The transport frame and the transport unit 1 are connected as a whole through a multi-stage cylinder and a pin shaft, and can be used as an integrated equipment to transport the top drive equipment as a whole; or the transport frame and the top drive equipment can be integrated and transported separately, while the pallet 4 and auxiliary parts such as the multi-stage cylinder and the pin shaft are transported separately. The transport unit 1 is not directly placed flat on the pallet 4 skid, but is tilted at a certain angle to the top drive support 44 on the pallet 4, and the transport unit 1 and the pallet 4 are connected as a whole through a pin shaft and a multi-stage cylinder. As shown Figure 5 As shown, during the erection process of the top drive, the transport part 1 and the top drive are fixed together to form a whole, and the oil cylinder of the multi-stage cylinder pushes the top drive equipment placement frame to gradually erect. During the extension of the oil cylinder, the transport frame and the top drive body rotate around the pin shaft until they are in an erect state, and the erection support legs 12 are supported to the ground.

[0036] Before operating the control unit, the pressure in the control unit is in a low-pressure unloading state, saving energy consumption. During the operation, the multi-way valve operating handle is pulled to realize the erection and placement of the control unit. During the operation, the hydraulic pressure changes in the control unit can be monitored in real time. The safety valve 32 of the control unit can ensure that in the event of an accident such as explosion or rupture of the pipeline, the multi-stage cylinder always maintains the current working state, so that the whole machine transport frame does not fall, avoiding accidents. Through this mechanism, the workshop matching test was completed, the design requirements were met, the joint adjustment test of the top drive and the transport unit 1 was completed, and the switching of the erection and tilt angle position of the top drive equipment and its matching transport unit 1 was realized.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heavy-load top drive transport and lifting mechanism, characterized in that: include: A transport part (1), a telescopic part (2) and a control part, wherein the transport part (1) is hinged on a support plate (4), one end of the telescopic part (2) is connected to the transport part (1), and the other end is hinged to the support plate (4), and the control part is arranged in the telescopic part (2), and the control part comprises a connected unloading control valve (31) group and a protective valve (34) group, and the unloading control valve (31) group and the protective valve (34) group are both connected to the telescopic part (2) to control the telescopic part (2) to lift the transport part (1).

2. The heavy-load top drive transport and lifting mechanism according to claim 1, characterized in that: The unloading control valve (31) group comprises an unloading control valve (31) and a reversing valve (33) connected to each other, the unloading control valve (31) is connected to the protection valve (34) group, and the reversing valve (33) is electrically connected to the telescopic part (2).

3. The heavy-load top drive transport and lifting mechanism according to claim 2, characterized in that: The protection valve (34) group comprises a safety valve (32) and a protection valve (34); the unloading control valve (31) is connected to the safety valve (32); the safety valve (32) is connected to the protection valve (34); and both the safety valve (32) and the protection valve (34) are electrically connected to the telescopic part (2).

4. The heavy-load top drive transport and lifting mechanism according to claim 1, characterized in that: A support seat (42) is provided on one end of the support plate (4), and the transport part (1) is hinged on the support seat (42) via a pin shaft.

5. The heavy-load top drive transport and hoisting mechanism according to claim 4, characterized in that: A support (44) is provided on the other end of the support plate (4), and the back of the transport part (1) can be placed on the support (44).

6. The heavy-load top drive transport and hoisting mechanism according to claim 1, characterized in that: A plurality of first lifting ears (43) are provided on both sides of the support plate (4).

7. The heavy-load top drive transport and hoisting mechanism according to claim 1, characterized in that: The transport part (1) is an L-shaped structure.

8. The heavy-load top drive transport and hoisting mechanism according to claim 1, characterized in that: Support legs (12) are provided on the transport part (1).

9. The heavy-load top drive transport and lifting mechanism according to claim 1, characterized in that: Two second lifting ears (11) are provided on the transport part (1).

10. The heavy-load top drive transport and hoisting mechanism according to claim 1, characterized in that: The telescopic part (2) is a multi-stage cylinder.

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