Drilling top drive balancing device

Abstract

The utility model discloses a well drilling top drive balancing device which comprises a lifting appliance main body, a first hinge frame arranged at the bottom of the lifting appliance main body, a main lifting hook and a vertical arm hinged in the first hinge frame, second hinge frames arranged on two sides of the lifting appliance main body, a fixed supporting column arranged in the second hinge frames, and a hydraulic cylinder arranged at the bottom in the fixed supporting column. A limiting sliding block is arranged at the power end of the bottom of the hydraulic cylinder and located in the fixed supporting column in a limiting sliding mode, a telescopic rod extending to the outside is arranged at the bottom of the limiting sliding block, a fixed block and a third hinge frame are fixedly arranged on the vertical arm, and the telescopic rod is hinged to the third hinge frame. Compared with the prior art, the well drilling top drive balancing device has the advantages that the hydraulic equipment is provided with the well drilling top drive balancing device in an internally-wrapped mode, so that only the pressure of internal oil pressure exists in the using process of the hydraulic equipment, and the safety and the damage rate of the hydraulic equipment can be greatly reduced; and the overall safety of the drilling top drive equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary structures for drilling top drives, and specifically refers to a drilling top drive balancing device. Background Technique

[0002] The full name of the top drive is the top drive drilling device, which is a top drive drilling system gradually developed in the past 20 years. It can directly rotate the drill pipe from the upper space of the derrick, feed it downward along a special guide rail, and complete various drilling operations such as rotating the drill pipe for drilling, circulating drilling fluid, connecting drill collars, making and breaking pipe connections, and backreaming.

[0003] In the overall structure of the top drive drilling device, a balancing system is often set up. In the conventional settings of the prior art, the adjustment operations are all carried out through hydraulic equipment on both sides. However, in the direct use of hydraulic equipment, the hydraulic equipment is easily in a stressed state for a long time, which easily causes damage to the hydraulic equipment, thus affecting the entire top drive device. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a drilling top drive balancing device that reduces the damage rate of the hydraulic equipment of the balancing device in view of the deficiencies mentioned in the above background technique.

[0005] To solve the above technical problem, the technical solution provided by the utility model is: a drilling top drive balancing device, including a sling main body, a top mounting bracket is connected to the top of the sling main body, a first hinge bracket is connected to the bottom of the sling main body, a main hook is hinged inside the first hinge bracket, and connecting vertical arms are connected to both sides of the bottom of the main hook;

[0006] Support blocks are connected to both sides of the sling main body, a second hinge bracket is connected to the outside of the support block, a fixed support column is hinged inside the second hinge bracket, a hydraulic cylinder is connected to the inner bottom of the fixed support column, a limit sliding block is connected to the power end of the bottom of the hydraulic cylinder, the limit sliding block is arranged to slide in a limited way inside the fixed support column, a telescopic rod extending to the outside is connected to the bottom of the limit sliding block, a fixed block is fixedly connected to the connecting vertical arm, a third hinge bracket is connected to the outside of the fixed block, and the telescopic rod is hinged to the third hinge bracket.

[0007] Further, a scale is connected to one side of the telescopic rod to facilitate observing the telescopic length operation of the telescopic rod.

[0008] Further, a plurality of limit sleeve rods passing through the limit sliding block are connected inside the fixed support column to facilitate the stable sliding operation of the limit sliding block.

[0009] Furthermore, on one side of the top of the fixed support column, there is an oil pipe through-hole, and a rubber sleeve matching the oil pipe through-hole is connected to the fixed support column, which facilitates the oil pipe layout operation.

[0010] Furthermore, a horizontal detector is connected to the bottom of the main hook, which facilitates observing the horizontal situation.

[0011] The advantages of a drilling top drive balancing device of the present utility model compared with the prior art are as follows: by arranging the hydraulic equipment of the drilling top drive balancing device in an inner wrapping manner, only the internal oil pressure acts on the hydraulic equipment during use, thereby greatly reducing the safety risk and damage rate of the hydraulic equipment and improving the overall safety of the drilling top drive equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the first structural schematic diagram of a drilling top drive balancing device of the present utility model.

[0013] Figure 2 is the second structural schematic diagram of a drilling top drive balancing device of the present utility model.

[0014] Figure 3 is the sectional structural schematic diagram of the fixed support column of a drilling top drive balancing device of the present utility model.

[0015] As shown in the figure: 1. Hoisting tool main body; 2. Installation top frame; 3. First hinge frame; 4. Main hook; 5. Connecting vertical arm; 6. Support block; 7. Second hinge frame; 8. Fixed support column; 9. Hydraulic cylinder; 10. Limit sliding block; 11. Telescopic rod; 12. Fixed block; 13. Third hinge frame; 14. Scale; 15. Limit sleeve rod; 16. Oil pipe through-hole; 17. Rubber sleeve; 18. Horizontal detector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following further elaborates on the present utility model in conjunction with the accompanying drawings.

[0017] Combined with the attached Figures 1 - 3 , a drilling top drive balancing device includes a hoisting tool main body 1. An installation top frame 2 is connected to the top of the hoisting tool main body 1. A first hinge frame 3 is connected to the bottom of the hoisting tool main body 1. A main hook 4 is hinged inside the first hinge frame 3. Connecting vertical arms 5 are connected to both sides of the bottom of the main hook 4. Basically, such a structure is adopted for the basic structure, and this is the same for the balancing system structure of the drilling top drive. Then, the angle of the connecting vertical arms 5 on both sides is adjusted through hydraulic equipment to control the balancing operation.

[0018] Combined with the attached Figures 2 - 3, support blocks 6 are connected to both sides of the spreader body 1. A second articulated frame 7 is connected to the outside of the support block 6. A fixed support column 8 is articulated inside the second articulated frame 7. A hydraulic cylinder 9 is connected to the inner bottom of the fixed support column 8. The bottom power end of the hydraulic cylinder 9 is connected with a limit sliding block 10. The limit sliding block 10 is arranged in a limit sliding manner inside the fixed support column 8. A plurality of limit sleeve rods 15 passing through the limit sliding block 10 are connected inside the fixed support column 8. The bottom of the limit sliding block 10 is connected with a telescopic rod 11 extending to the outside. A fixed block 12 is fixedly connected to the connecting vertical arm 5. A third articulated frame 13 is connected to the outside of the fixed block 12. The telescopic rod 11 is articulated with the third articulated frame 13. By driving the limit sliding block 10 and the telescopic rod 11 to reciprocate through the hydraulic cylinder 9, the angles of the two connecting vertical arms 5 can be adjusted in cooperation to reach a balanced state. Thus, when the connecting vertical arm 5 is offset, the tilting force will only be applied to the fixed support column 8 and the telescopic rod 11, and will not be applied to the hydraulic cylinder 9. The hydraulic cylinder 9 only bears the corresponding internal oil pressure operation.

[0019] Combined with the attached Figures 1 - 3 , a scale 14 is connected to one side of the telescopic rod 11. Through the scale 14, the length of the telescopic operation can be visually observed. An oil pipe through hole 16 is connected to one side of the top of the fixed support column 8. The fixed support column 8 is connected with a rubber sleeve 17 matching the oil pipe through hole 16. Accessories such as the oil pipe of the hydraulic cylinder 9 can be inserted through the oil pipe through hole 16. A horizontal detector 18 is connected to the bottom of the main hook 4. The horizontal detector 18 can directly sense the levelness of the whole device.

[0020] The above describes the present invention and its implementation manners. Such a description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A drilling top drive balancing device, comprising a sling body (1), wherein a top mounting frame (2) is connected to the top of the sling body (1), and characterized in that: The bottom of the sling body (1) is connected with a first articulated frame (3), the first articulated frame (3) is internally hinged with a main hook (4), and both sides of the bottom of the main hook (4) are connected with connecting arms (5); The sling body (1) is connected with support blocks (6) on both sides, the support block (6) is connected with a second articulated frame (7) on the outside, the second articulated frame (7) is hinged with a fixed support column (8), the fixed support column (8) is connected with a hydraulic cylinder (9) at the bottom, the hydraulic cylinder (9) is connected with a limit sliding block (10) at the bottom power end, the limit sliding block (10) is located inside the fixed support column (8) and is provided with a limit sliding setting, the limit sliding block (10) is connected with a telescopic rod (11) extending to the outside at the bottom, the connecting arm (5) is fixedly connected with a fixed block (12), the fixed block (12) is connected with a third articulated frame (13) on the outside, and the telescopic rod (11) is articulated with the third articulated frame (13).

2. A drilling top drive balancing device according to claim 1, characterized in that: A scale (14) is connected to one side of the telescopic rod (11).

3. A drilling top drive balancing device according to claim 1, characterized in that: The fixed support column (8) is internally connected with a plurality of limiting sleeve rods (15) penetrating the limiting sliding block (10).

4. A drilling top drive balancing device according to claim 1, characterized in that: One side of the top of the fixed support column (8) is connected to an oil pipe through hole (16), and the fixed support column (8) is connected to a rubber sleeve (17) that matches the oil pipe through hole (16).

5. A drilling top drive balancing device according to claim 1, characterized in that: The bottom of the main hook (4) is connected with a level detector (18).

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