A lifting device for automatically loading and unloading drill rods from drilling rigs

Abstract

This utility model belongs to the technical field of catwalk equipment, specifically disclosing a lifting device for automatically loading and unloading drill rods from drilling rigs. The lifting device is installed at both ends of the catwalk equipment. A connecting plate is provided in the middle of the upper end face of the housing; a first pin hole is provided in the middle of the front end face of the housing, and a second pin hole is provided in the lower end of the front end face; the sliding plate includes a groove plate and a second pin shaft, and the sliding plate is located at the upper end of the housing; a fifth pin hole is provided at the right end of the first lifting arm; a second groove is provided on the upper end face of the left end of the first lifting arm, and a sixth pin hole is provided on the right side of the second groove; the left end of the first lifting arm is connected to a first grab hook; the first hydraulic cylinder is installed on the second pin hole and connected to the sixth pin hole. This device only requires adding a sliding plate above the existing lifting device to make the upper end face of the lifting device form a certain tilt angle, using gravity to automatically roll the drill rod to the top of the lifting seat, reducing labor intensity and labor costs.

Description

Technical Field

[0001] This utility model belongs to the field of catwalk equipment technology, specifically relating to a lifting device for automatically loading and unloading drill rods of drilling rigs. Background Technology

[0002] During the drilling process, drill rods need to be installed or removed continuously. However, drill rods are long and made of metal, making them heavy. In actual use, catwalk equipment is often used to load and unload drill rods. Nowadays, most catwalk equipment is used for manual handling when loading and unloading drill rods, which is labor-intensive and dangerous.

[0003] Currently, some catwalks use hydraulic lifting devices for loading and unloading drill rods. The principle is to use a hook to transport the drill rod to the top of the catwalk, and then manually roll the drill rod to the top of the lifting platform, which then transports the drill rod to the drilling rig. Although this type of catwalk lifting device reduces the labor intensity of workers, at least two workers are required to operate it on-site during use, which not only wastes manpower but also increases costs. There is an urgent need for a method to solve this problem. Utility Model Content

[0004] In view of the problems existing in the background art, the present invention provides a lifting device for automatically loading and unloading drill rods of drilling rigs.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a lifting device for automatically loading and unloading drill rods of a drilling rig, comprising a housing, a sliding plate, a first lifting arm, a first hydraulic cylinder, a second lifting arm, a second hydraulic cylinder, a first grab hook, and a pin. The lifting device is installed at both ends of a catwalk device. The housing is a rectangular empty box with openings on its left, right, and top ends. A connecting plate is provided in the middle of the top end of the housing, and a third pin hole for installing the pin is provided on the top end of the connecting plate. First grooves are provided at both ends of the top end of the housing. A first pin hole is provided in the middle of the front end of the housing, and a second pin hole is provided at the bottom of the front end of the housing.

[0006] The slide plate includes a groove plate and a second pin; the groove plate is a “┏┓” shaped plate, and a fourth pin hole is provided on the upper end surface of the groove plate; the second pin is a cylinder, and the second pin passes through both ends of the groove plate; the slide plate is located on the upper end surface of the box body, and the second pin is located in the first groove.

[0007] The first lifting arm is a flat plate. The right end of the first lifting arm is provided with a fifth pin hole, which is installed on the first pin hole by a pin shaft. The upper surface of the left end of the first lifting arm is provided with a second groove, and the right side of the second groove is provided with a sixth pin hole. The left end of the first lifting arm is connected to the first grab hook. The second lifting arm has the same structure as the first lifting arm and is symmetrically arranged.

[0008] One end of the first hydraulic cylinder and the second hydraulic cylinder are respectively installed on the second pin hole, and the other end of the first hydraulic cylinder and the second hydraulic cylinder are respectively connected to the sixth pin hole of the first lifting arm and the second lifting arm.

[0009] The length of the groove plate is adapted to the length of the box body, the width of the groove plate is less than the width of the connecting plate, and the height of the groove plate is less than the distance between the upper end face of the connecting plate and the upper end face of the box body.

[0010] The length of the second pin is adapted to the width of the housing.

[0011] The distance between the first pin hole and the first groove is equal to the distance between the fifth pin hole and the second groove.

[0012] The position of the fourth pin hole corresponds to the position of the third pin hole, and the diameter of the fourth pin hole is larger than the diameter of the pin.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a lifting device for automatically loading and unloading drill rods of drilling rigs. This device only requires adding a sliding plate above the existing lifting device to make the upper surface of the lifting device form a certain tilt angle, and use gravity to make the drill rod automatically roll to the top of the lifting seat, thereby reducing labor intensity and labor costs. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention.

[0015] Figure 2 This is the front view of the box.

[0016] Figure 3 This is a top view of the box.

[0017] Figure 4 This is a top view of the skateboard.

[0018] Figure 5 This is a side view of the skateboard.

[0019] Figure 6 This is the front view of the first lifting arm.

[0020] Figure 7 This is a schematic diagram of the first lifting arm when it is raised.

[0021] Figure 8 This is a diagram showing the skateboard being lifted.

[0022] Figure 9 This is an overhead view of the catwalk.

[0023] In the diagram: 1. Box body, 2. Slide plate, 3. First lifting arm, 4. First hydraulic cylinder, 5. Second lifting arm, 6. Second hydraulic cylinder, 7. First grab hook, 8. Second grab hook, 9. Pin, 10. Drill rod, 11. First groove, 12. First pin hole, 13. Second pin hole, 14. Connecting plate, 15. Third pin hole, 21. Groove plate, 22. Second pin shaft, 23. Fourth pin hole, 31. Fifth pin hole, 32. Sixth pin hole, 33. Second groove, 34. Pin shaft. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The following detailed description of the specific embodiments of this utility model, in conjunction with the accompanying drawings, further illustrates the following: A lifting device for automatically loading and unloading drill rods of a drilling rig includes a housing 1, a sliding plate 2, a first lifting arm 3, a first hydraulic cylinder 4, a second lifting arm 5, a second hydraulic cylinder 6, a first grab hook 7, a second grab hook 8, a pin 9, and a drill rod 10. The lifting device is installed at both ends of a catwalk device. The housing 1 is a rectangular empty box with openings on its left, right, and top ends. A connecting plate 14 is provided in the middle of the top end of the housing 1, and a third pin hole 15 for installing the pin 9 is provided on the top end of the connecting plate 14. First grooves 11 are provided at both ends of the top end of the housing 1. A first pin hole 12 is provided in the middle of the front end of the housing 1, and a second pin hole 13 is provided at the bottom of the front end of the housing 1.

[0026] The slide plate 2 includes a groove plate 21 and a second pin 22; the groove plate 21 is a "┏┓" shaped plate, the length of the groove plate 21 is adapted to the length of the housing 1, the width of the groove plate 21 is less than the width of the connecting plate 14, and the height of the groove plate 21 is less than the distance between the upper end face of the connecting plate 14 and the upper end face of the housing 1; the length of the second pin 22 is adapted to the width of the housing 1; in actual use, the slide plate 2 is installed at the upper opening of the housing 1, and the second pins 22 at both ends of the slide plate 2 are located in the first groove 11, allowing the slide plate 2 to move freely up and down; a fourth pin hole 23 is provided on the upper end face of the groove plate 21, the position of the fourth pin hole 23 corresponds to the position of the third pin hole 15, and the diameter of the fourth pin hole 23 is greater than the diameter of the pin 9; in this lifting... In the device, there are two third pin holes 15 and two fourth pin holes 23. After the pin 9 passes through the fourth pin hole 23, it is installed on the third pin hole 15. The diameter of the fourth pin hole 23 is larger than the diameter of the pin 9 to avoid interference when the slide plate 2 is tilted. The second pin 22 is a cylinder and passes through both ends of the slot plate 21. The slide plate 2 is located on the upper surface of the box body 1, and the second pin 22 is located in the first groove 11. In this embodiment, there are two second pins 22, which are respectively located at both ends of the slide plate 2 and placed in the first groove 11. When one end of the slide plate 2 is tilted up, the second pin 22 at the other end of the slide plate 2 is engaged in the first groove 11 at the other end to support the slide plate 2 and prevent the slide plate 2 from sliding off the upper end of the box body 1.

[0027] The first lifting arm 3 is a flat plate. A fifth pin hole 31 is provided at the right end of the first lifting arm 3, and the fifth pin hole 31 is mounted on the first pin hole 12 via a pin 34. A second groove 33 is provided on the upper surface of the left end of the first lifting arm 3, and a sixth pin hole 32 is provided on the right side of the second groove 33. The left end of the first lifting arm 3 is connected to the first hook 7. The second lifting arm 5 has the same structure as the first lifting arm 3 and is symmetrically arranged. The distance between the first pin hole 12 and the first groove 11 is equal to the distance between the fifth pin hole 31 and the second groove 33. In this device... During the process, the first lifting arm 3 moves in an arc around the first pin hole 12. When the first lifting arm 3 is raised to the highest point, the second pin 22 of the slide plate 2 is engaged in the second groove 33 of the first lifting arm 3, and one end of the slide plate 2 is raised, so that the slide plate 2 forms a certain tilt angle, so that the drill rod 10 can roll from the first grab hook 7 to the middle of the slide plate 2. One end of the first hydraulic cylinder 4 and the second hydraulic cylinder 6 are respectively installed on the second pin hole 13, and the other end of the first hydraulic cylinder 4 and the second hydraulic cylinder 6 are respectively connected to the sixth pin hole 32 of the first lifting arm 3 and the second lifting arm 5.

[0028] The usage process of this utility model is as follows: First, the lifting device is symmetrically installed at both ends of the cat walkway (e.g., Figure 9(As shown); When it is necessary to raise the drill rod 10 on the left side of the catwalk, first activate the first hydraulic cylinder 4 to lower the first lifting arm 3 to the lower end. At this time, the drill rod 10 rolls onto the first grab hook 7; then activate the first hydraulic cylinder 4 again to raise the first lifting arm 3 to the highest point (as shown). Figure 7 As shown), at this time, the second pin 22 of the slide plate 2 is engaged in the second groove 33 of the first lifting arm 3, causing one end of the slide plate 2 to tilt upwards, making the slide plate 2 form a certain tilt angle. The drill rod 10 on the first grab hook 7 rolls towards the middle of the slide plate 2 under the action of gravity; when the drill rod 10 rolls to the middle of the slide plate 2 (as shown), Figure 8 As shown in the diagram, when the drill rod 10 is above the lifting platform, it stops rolling due to the obstruction of the pin 9. At this time, the lifting platform of the catwalk is activated to transport the drill rod 10 to the drilling rig. If it is necessary to continue lifting the drill rod 10, the above steps can be repeated. When it is necessary to lift the drill rod 10 on the right side of the catwalk, the second hydraulic cylinder 6 is activated to raise the second lifting arm 5, and the second grab hook 8 can be used to lift the drill rod 10 on the right side of the catwalk. When it is necessary to remove the drill rod 10 from the drilling rig, the above steps can be reversed to remove the drill rod 10 from the drilling rig.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0030] The parts of this utility model not described in detail are existing technologies.

Claims

1. A lifting device for automatically loading and unloading drill rods of a drilling rig, comprising a housing (1), a sliding plate (2), a first lifting arm (3), a first hydraulic cylinder (4), a second lifting arm (5), a second hydraulic cylinder (6), a first grab hook (7), and a pin (9), wherein the lifting device is installed at both ends of a catwalk device, characterized in that: The box (1) is a rectangular empty box with openings on the left, right and top ends. A connecting plate (14) is provided in the middle of the top end of the box (1), and a third pin hole (15) for installing a pin (9) is provided on the top end of the connecting plate (14). A first groove (11) is provided at both ends of the top end of the box (1). A first pin hole (12) is provided in the middle of the front end of the box (1), and a second pin hole (13) is provided at the bottom of the front end of the box (1). The slide plate (2) includes a groove plate (21) and a second pin (22); the groove plate (21) is a "┏┓" shaped plate, and a fourth pin hole (23) is provided on the upper surface of the groove plate (21); the second pin (22) is a cylinder, and the second pin (22) passes through both ends of the groove plate (21); the slide plate (2) is located at the upper end of the box body (1), and the second pin (22) is located in the first groove (11); The first lifting arm (3) is a flat plate. The right end of the first lifting arm (3) is provided with a fifth pin hole (31). The fifth pin hole (31) is installed on the first pin hole (12) through a pin shaft (34). The upper surface of the left end of the first lifting arm (3) is provided with a second groove (33). The right side of the second groove (33) is provided with a sixth pin hole (32). The left end of the first lifting arm (3) is connected to the first grab hook (7). The second lifting arm (5) has the same structure as the first lifting arm (3) and is symmetrically arranged. One end of the first hydraulic cylinder (4) and the second hydraulic cylinder (6) are respectively installed on the second pin hole (13), and the other end of the first hydraulic cylinder (4) and the second hydraulic cylinder (6) are respectively connected to the sixth pin hole (32) of the first lifting arm (3) and the second lifting arm (5).

2. The lifting device for automatically loading and unloading drill pipes of a drilling rig according to claim 1, characterized in that: The length of the groove plate (21) is adapted to the length of the box body (1), the width of the groove plate (21) is less than the width of the connecting plate (14), and the height of the groove plate (21) is less than the distance between the upper end face of the connecting plate (14) and the upper end face of the box body (1).

3. The lifting device for automatically loading and unloading drill pipes of a drilling rig according to claim 1, characterized in that: The length of the second pin (22) is adapted to the width of the housing (1).

4. The lifting device for automatically loading and unloading drill pipes of a drilling rig according to claim 1, characterized in that: The distance between the first pin hole (12) and the first groove (11) is equal to the distance between the fifth pin hole (31) and the second groove (33).

5. The lifting device for automatically loading and unloading drill pipes of a drilling rig according to claim 1, characterized in that: The position of the fourth pin hole (23) corresponds to the position of the third pin hole (15), and the diameter of the fourth pin hole (23) is greater than the diameter of the pin (9).

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