Positioning device for derrick of workover rig

Abstract

The utility model relates to the field of workover rig derricks, in particular to a workover rig derrick positioning device which comprises a positioning frame, an adjusting structure is arranged on the outer wall of the inner side of the positioning frame, and auxiliary assemblies are installed on the outer walls of the four corners of the positioning frame. The adjusting structure comprises first adjusting grooves symmetrically formed in the outer wall of the inner side of the positioning frame, a two-way screw rotationally connected to the positioning frame and located in the centers of the first adjusting grooves, and positioning rods screwed to the two ends of the outer wall of the two-way screw. The second adjusting grooves are formed in the outer walls of the sides, close to each other, of the positioning rods, and the positioning screws are rotationally connected to the centers of the second adjusting grooves. The second motor and the first motor drive the positioning rings to be close to each other through the bevel gears, the drill rods are limited in the inner rings of the positioning rings after the positioning rings are combined, shaking of the drill rods is limited, butt joint of the drill rods is facilitated, and adjustment and positioning are facilitated; the positioning frame is located in the center of the interior of the derrick, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a workover derrick, and in particular to a positioning device for a workover derrick. Background Art

[0002] Well repair rigs or well dredging rigs are the most basic and main power source for well repair and underground operations. According to their operating structure, they are divided into crawler type and tire type;

[0003] The driving device in the derrick of the well repair rig will lift the drill pipe, and the drill pipes are connected to each other to form a drilling device. After the derrick lifts part of the drill pipe, the drill pipe will be in a suspended state and will be affected by inertia and the environment, causing irregular swings, which may easily lead to inconvenience in subsequent docking. Utility Model Content

[0004] The purpose of the utility model is to propose a positioning device for a well repair rig derrick in response to the above-mentioned problems and shortcomings: Motor 2 and Motor 1 drive positioning rings to approach each other through bevel gears, and after the positioning rings are combined, the drill pipe is restricted in the inner ring of the positioning ring, the shaking of the drill pipe is restricted, the drill pipe is convenient for docking, and the positioning is adjusted, the problem of shaking affecting the docking is solved, and the positioning connection is convenient.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A positioning device for a well repair rig derrick comprises a positioning frame, wherein the inner outer wall of the positioning frame is provided with an adjustment structure, and the outer walls at the four corners of the positioning frame are equipped with auxiliary components, wherein the adjustment structure comprises an adjustment groove 1 symmetrically arranged on the inner outer wall of the positioning frame, a bidirectional screw rotatably connected to the positioning frame at the center of the adjustment groove 1, a positioning rod screwed to both ends of the outer wall of the bidirectional screw, an adjustment groove 2 arranged on the outer wall of one side of the positioning rod close to each other, and a positioning screw rotatably connected to the center of the adjustment groove 2.

[0007] Preferably, a positioning block is threadedly connected to the outer wall of the positioning screw, and a positioning ring is installed on the outer wall of one end of the positioning block.

[0008] Preferably, the outer wall of the positioning block is slidably connected to the outer wall of the second adjusting groove, and the two ends of the positioning rod are slidably connected to the outer wall of the first adjusting groove.

[0009] Preferably, a motor 1 is installed on the top outer wall of the positioning frame at one end of the bidirectional screw, and a motor 2 is installed on the top outer wall of the positioning rod at one end of the positioning screw, a counterweight 1 is installed on the top outer wall of the positioning frame at the other end of the bidirectional screw, and a counterweight 2 is installed on the top outer wall of the positioning rod at the other end of the positioning screw.

[0010] Preferably, the motor 1, the motor 2, one end of the bidirectional screw and one end of the positioning screw are all equipped with bevel gears, and the bevel gears are meshed with each other, and the weight of the counterweight block 1 and the motor 1 and the weight of the counterweight block 2 and the motor 2 are the same.

[0011] Preferably, the auxiliary component includes a connecting rod and an auxiliary rope, and both ends of the connecting rod and the auxiliary rope are movably connected with hinge blocks, and one end of the hinge block at one end of the connecting rod is hinged with a mounting plate.

[0012] Preferably, the motor one and the motor two are connected to a switch via a wire, and the switch is connected to a power source via a wire.

[0013] The beneficial effects of the utility model are:

[0014] 1. Motor 2 and Motor 1 drive the positioning rings to approach each other through bevel gears. After the positioning rings are combined, the drill rod is restricted in the inner ring of the positioning rings to limit the shaking of the drill rod, making it easier to dock the drill rod and adjust the positioning;

[0015] 2. The connecting rod on the positioning frame is installed on the outer wall of the derrick through the mounting plate, and the hinge block at one end of the auxiliary rope is also fixed in the derrick, so that the positioning frame is located in the center of the derrick to improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the unfolded structure of a positioning device for a workover rig mast proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of a positioning device for a workover rig derrick proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of a positioning frame structure of a positioning device for a workover rig derrick proposed by the utility model;

[0019] Figure 4 The utility model provides a schematic diagram of the connecting rod structure of a positioning device for a workover derrick.

[0020] In the figure: 1 positioning frame, 2 adjustment structure, 3 auxiliary component, 4 adjustment slot 1, 5 bidirectional screw, 6 positioning rod, 7 motor 1, 8 counterweight block 1, 9 adjustment slot 2, 10 positioning screw, 11 positioning block, 12 positioning ring, 13 motor 2, 14 counterweight block 2, 15 connecting rod, 16 auxiliary rope, 17 mounting plate, 18 hinge block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Embodiment 1:

[0023] Reference Figure 1-4 A positioning device for a workover rig derrick comprises a positioning frame 1, an inner outer wall of the positioning frame 1 is provided with an adjustment structure 2, and four corner outer walls of the positioning frame 1 are provided with auxiliary components 3;

[0024] The auxiliary component 3 includes a connecting rod 15 and an auxiliary rope 16, and both ends of the connecting rod 15 and the auxiliary rope 16 are movably connected with a hinge block 18, and one end of the hinge block 18 at one end of the connecting rod 15 is hinged with a mounting plate 17. The positioning frame 1 is installed in the derrick through the connecting rod 15 and the auxiliary rope 16, and the double installation maintains the installation stability of the positioning frame 1.

[0025] Embodiment 2:

[0026] Reference Figure 1-3 The adjustment structure 2 includes an adjustment groove 1 4 symmetrically arranged on the inner outer wall of the positioning frame 1, a bidirectional screw 5 rotatably connected to the positioning frame 1 at the center of the adjustment groove 1 4, positioning rods 6 screwed to both ends of the outer wall of the bidirectional screw 5, an adjustment groove 2 9 arranged on the outer wall of the positioning rod 6 close to each other, and a positioning screw 10 rotatably connected to the center of the adjustment groove 2 9. The motor 1 7 and the motor 2 13 respectively drive the bidirectional screw 5 and the positioning screw 10 to rotate through bevel gears, so that the positioning rings 12 are close to each other to limit the drill rod, reduce the range of activity of the drill rod, facilitate subsequent docking and connection, and facilitate adjustment;

[0027] A positioning block 11 is screwed onto the outer wall of the positioning screw 10, and a positioning ring 12 is installed on the outer wall of one end of the positioning block 11;

[0028] The outer wall of the positioning block 11 is slidably connected to the outer wall of the adjusting groove 2 9, and the two ends of the positioning rod 6 are slidably connected to the outer wall of the adjusting groove 1 4;

[0029] A motor 7 is installed at one end of the bidirectional screw 5 on the top outer wall of the positioning frame 1, and a motor 2 13 is installed at one end of the positioning screw 10 on the top outer wall of the positioning rod 6, a counterweight 8 is installed at the other end of the bidirectional screw 5 on the top outer wall of the positioning frame 1, and a counterweight 2 14 is installed at the other end of the positioning screw 10 on the top outer wall of the positioning rod 6. The counterweight 1 8 on the top outer wall of the positioning frame 1 and the counterweight 2 14 on the top outer wall of the positioning rod 6 cooperate with the motor 1 7 and the motor 2 13 to maintain the balance of the positioning frame 1, which is convenient for installing the positioning frame 1 and maintaining the overall balance;

[0030] Motor 1 7, motor 2 13, one end of the bidirectional screw 5 and one end of the positioning screw 10 are all equipped with bevel gears, and the bevel gears are meshed with each other. The weight block 1 8 and motor 1 7 and the weight block 2 14 and motor 2 13 have the same weight. The positioning rods 6 are close to each other to drive the positioning rings 12 to be close to each other. After the positioning rings 12 are combined, the drill rod is restricted in the inner ring of the positioning ring 12, and the shaking of the drill rod is restricted, which is convenient for docking the drill rod.

[0031] Motor 1 7 and motor 2 13 are connected to a switch via a wire, and the switch is connected to a power source via a wire.

[0032] Working principle: When in use, the connecting rod on the positioning frame 1 is installed on the outer wall of the derrick through the mounting plate 17, and the hinge block 18 at one end of the auxiliary rope 16 is also fixed in the derrick, so that the positioning frame 1 is located at the center of the inside of the derrick. After the derrick lifts the drill pipe, the drill pipe is inside the positioning frame 1, and the motor 17 and the motor 2 13 are started. The motor 2 13 drives the positioning screw 10 to rotate through the bevel gear, so that the positioning block 11 and the positioning ring 12 move on the positioning rod 6. The adjusted positioning ring 12 is located on both sides of the drill pipe. The motor 17 drives the bidirectional screw 5 to rotate through the bevel gear, driving the two ends of the positioning rod 6 to slide in the adjusting groove 14. The positioning rods 6 are close to each other and drive the positioning rings 12 to be close to each other. After the positioning rings 12 are combined, the drill pipe is restricted to the inner ring of the positioning ring 12, and the shaking of the drill pipe is restricted, which is convenient for docking the drill pipe.

[0033] The exemplary implementation of the utility model is described in detail with reference to the examples, however, it is understood by those skilled in the art that, without departing from the concept of the utility model, various modifications and alterations may be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the utility model may be made without exceeding the scope of protection of the utility model, which is determined by the attached claims. The foregoing description of the specific exemplary implementation of the utility model is not intended to limit the utility model to the precise form disclosed, and it is obvious that many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary implementations of the utility model and various different choices and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A positioning device for a workover rig derrick, comprising a positioning frame (1), characterized in that: The inner outer wall of the positioning frame (1) is provided with an adjustment structure (2), and the four corner outer walls of the positioning frame (1) are equipped with auxiliary components (3), the adjustment structure (2) comprises an adjustment groove (4) symmetrically arranged on the inner outer wall of the positioning frame (1), a bidirectional screw (5) rotatably connected to the positioning frame (1) at the center of the adjustment groove (4), a positioning rod (6) screwed to the two ends of the outer wall of the bidirectional screw (5), an adjustment groove (9) arranged on the outer wall of one side of the positioning rod (6) close to each other, and a positioning screw (10) rotatably connected to the center of the adjustment groove (9).

2. A positioning device for a workover rig mast according to claim 1, characterized in that: A positioning block (11) is screwed onto the outer wall of the positioning screw rod (10), and a positioning ring (12) is installed on the outer wall of one end of the positioning block (11).

3. A positioning device for a workover rig mast according to claim 2, characterized in that: The outer wall of the positioning block (11) is slidably connected to the outer wall of the second adjustment groove (9), and the two ends of the positioning rod (6) are slidably connected to the outer wall of the first adjustment groove (4).

4. The positioning device for a workover rig mast according to claim 1, characterized in that: A motor 1 (7) is installed on the top outer wall of the positioning frame (1) at one end of the bidirectional screw (5), and a motor 2 (13) is installed on the top outer wall of the positioning rod (6) at one end of the positioning screw (10); a counterweight 1 (8) is installed on the top outer wall of the positioning frame (1) at the other end of the bidirectional screw (5), and a counterweight 2 (14) is installed on the top outer wall of the positioning rod (6) at the other end of the positioning screw (10).

5. The positioning device for a workover rig mast according to claim 4, characterized in that: The motor 1 (7), the motor 2 (13), one end of the bidirectional screw (5) and one end of the positioning screw (10) are all equipped with bevel gears, and the bevel gears are meshed with each other. The weight of the counterweight block 1 (8) and the motor 1 (7) and the weight of the counterweight block 2 (14) and the motor 2 (13) are the same.

6. The positioning device for a workover rig mast according to claim 1, characterized in that: The auxiliary component (3) comprises a connecting rod (15) and an auxiliary rope (16), and both ends of the connecting rod (15) and the auxiliary rope (16) are movably connected with a hinge block (18), and one end of the hinge block (18) at one end of the connecting rod (15) is hinged with a mounting plate (17).

7. The positioning device for a workover rig mast according to claim 4, characterized in that: The motor 1 (7) and the motor 2 (13) are connected to a switch via a wire, and the switch is connected to a power source via a wire.

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