Double-lock type energy-saving quick casing centralizing table

Abstract

The utility model relates to the technical field of petroleum equipment, in particular to a double-lock type energy-saving quick casing centralizing table which comprises a derrick, a lifting winch and a guide rail are installed on the derrick, a lifting trolley is arranged on the guide rail, the lifting winch drives the lifting trolley to move along the guide rail, and a manned basket, an upper safety lock and a lower safety lock are installed on the lifting trolley. Compared with the prior art, two sets of mechanical anti-falling safety lock structures including the upper safety lock and the lower safety lock are arranged in the technical scheme, when the winch is abnormal, the upper safety lock and the lower safety lock can lock and fix the lifting trolley and the guide rail together, so that the dual-protection effect is achieved, the safety performance is higher, and the safety performance is better. In the normal working process, the lower safety lock can replace the lifting winch to park the lifting trolley, so that the lifting winch is liberated, the energy consumption of the lifting winch is reduced, and the effects of saving energy and prolonging the service life of the lifting winch are achieved.

Description

Technical Field

[0001] This utility model relates to the field of petroleum equipment technology, and in particular to a double-locking energy-saving quick casing straightening platform. Background Technology

[0002] Casing centering platforms are typically used during casing installation in drilling operations. Existing equipment usually only employs one fall arrest safety lock structure or relies solely on the winch's self-locking mechanism without a fall arrest safety lock, posing certain safety hazards. Since the fall arrest safety lock only activates when the winch malfunctions, thus protecting personnel from falls, it has no practical function when the winch is operating normally. If the number of fall arrest safety locks is simply increased on the casing centering platform to improve safety, it will increase the weight of the platform, thereby increasing the working pressure on the winch and raising energy consumption.

[0003] Therefore, it is necessary to propose a double-locking, energy-saving, and quick-access sleeve straightening platform to improve the safety of the straightening platform while reducing the working pressure on the winch and lowering energy consumption. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the existing sleeve straightening platform has a small number of anti-fall safety locks, resulting in low safety. A double-lock energy-saving and quick sleeve straightening platform is provided.

[0005] The technical solution of this utility model is:

[0006] A double-locking energy-saving quick casing straightening platform includes a derrick, on which a hoisting winch and a guide rail are installed. A lifting trolley is set on the guide rail. The hoisting winch drives the lifting trolley to move along the guide rail. The lifting trolley is equipped with a personnel basket, an upper safety lock and a lower safety lock.

[0007] The upper safety lock includes a limit block and a pawl. The limit block is rotatably connected to the lifting trolley. One end of the limit block is equipped with a pulley block and a first spring. The hoisting winch and the pulley block are wound with a traction rope. The first spring is connected to the limit block and the lifting trolley respectively. The other end of the limit block is fixedly connected to the pawl. The lifting trolley is fixedly connected to a limit post. When the limit block rotates to contact the limit post, the limit block stops rotating and the pawl contacts and locks with the guide rail.

[0008] The lower safety lock includes a locking tongue, a pedal, and a second spring. The pedal is rotatably connected to the lifting trolley, and the locking tongue is rotatably connected to the lifting trolley. The locking tongue has a groove. One end of the pedal is fixedly connected to a slider, which slides in the groove. The second spring is connected to the lifting trolley and the slider respectively. A limit slot is provided on the guide rail. Rotating the pedal can drive the locking tongue to rotate into the limit slot, thereby locking the lifting trolley.

[0009] Furthermore, the passenger basket is rotatably connected to the lifting trolley, which is equipped with a tilting mechanism that causes the passenger basket to tilt relative to the lifting trolley.

[0010] Furthermore, the tilting mechanism is a hydraulic cylinder.

[0011] Furthermore, the lifting trolley is equipped with a tilting shaft, and the passenger basket is rotatably connected to the lifting trolley through the tilting shaft.

[0012] Furthermore, the lifting trolley is provided with a first rotating shaft and a second rotating shaft. The pedal is rotatably connected to the lifting trolley through the first rotating shaft, and the locking tongue is rotatably connected to the lifting trolley through the second rotating shaft.

[0013] Furthermore, the lifting trolley is equipped with a manual pump, which drives the hydraulic cylinder to extend and retract.

[0014] Furthermore, the derrick is equipped with an upper hook and a lower pin connection.

[0015] Furthermore, the lifting trolley is equipped with a fixed pin, and the limit block is rotatably connected to the lifting trolley through the fixed pin.

[0016] This utility model discloses a double-locking energy-saving quick-release sleeve straightening platform. When the hoisting winch drives the lifting trolley to rise and fall via traction, the hoisting winch's pulling force overcomes the elastic force of the first spring, causing the limiting block to rotate relative to the lifting trolley. When the lifting trolley moves to contact the limiting post, it stops rotating, and the pawl at its other end separates from the limiting post, allowing the lifting trolley to move along the guide rail. If the traction rope breaks or other situations occur, the limiting block, losing traction, rotates in the opposite direction relative to the lifting trolley under the elastic force of the first spring, causing the pawl to move back to contact the guide rail, where it locks into place, achieving a locking function. The lower safety lock is controlled by the worker's foot. When the worker is in the carrying basket, stepping on the pedal causes the slider to slide in the groove, causing the locking tongue to rotate relative to the lifting trolley, moving the locking tongue out of the limiting slot on the guide rail. At this time, the lifting trolley can move along the guide rail. However, in the event of a hazard... In case of danger or when stopping, the foot leaves the pedal, and the second spring drives the slider to rotate in the opposite direction to the previous rotation, causing the locking tongue to move back into the limit slot, thereby locking the lifting trolley to the guide rail. Since the lower safety lock can be manually controlled, when the hoisting winch stops traction, the lower safety lock can limit the position of the lifting trolley in place of the hoisting winch, realizing the parking function. Compared with traditional technology, the two sets of mechanical anti-fall safety lock structures configured in this technical solution, the upper safety lock and the lower safety lock, can lock and fix the lifting trolley to the guide rail together when the winch malfunctions, thus playing a dual protection role and having higher safety performance. During normal operation, the lower safety lock can replace the hoisting winch to park the lifting trolley, thereby freeing up the hoisting winch, reducing the energy consumption of the hoisting winch, and achieving the effect of energy saving and increasing the service life of the hoisting winch. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is the front view of the present utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of a portion of point A in the middle;

[0020] Figure 4 This utility model Figure 2 Enlarged view of a section at point B in the middle;

[0021] Figure 5 For reference regarding the usage status of this utility model Figure 1 ;

[0022] Figure 6 For reference regarding the usage status of this utility model Figure 2 .

[0023] Reference numerals: 1. Hoisting winch; 2. Guide rail; 3. Lifting trolley; 4. Personnel basket; 5. Upper safety lock; 6. Lower safety lock; 7. Tilting mechanism; 21. Upper hook; 22. Lower pin connection; 23. Limiting slot; 41. Tilting shaft; 51. Pulley block; 52. First spring; 53. Fixed pin; 54. Pawl; 61. Pedal; 62. First rotating shaft; 63. Locking tongue; 64. Second rotating shaft; 65. Second spring; 71. Hydraulic cylinder; 72. Manual pump. Detailed Implementation

[0024] To make the technical means, technical features, utility model purpose and technical effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0025] Example 1:

[0026] like Figure 1 and Figure 2 As shown, this embodiment provides a double-locking energy-saving quick casing straightening platform, including a derrick, on which a hoisting winch 1 and a guide rail 2 are installed. The hoisting winch 1 and the guide rail 2 are respectively fixedly connected to the derrick with screws. A lifting trolley 3 is provided on the guide rail 2. The hoisting winch 1 drives the lifting trolley 3 to move along the guide rail 2. The lifting trolley 3 is equipped with a personnel basket 4, an upper safety lock 5, and a lower safety lock 6.

[0027] like Figure 3As shown, the upper safety lock 5 includes a limit block and a pawl 54. The limit block is rotatably connected to the lifting trolley 3. One end of the limit block is equipped with a pulley block 51 and a first spring 52. The hoisting winch 1 and the pulley block 51 are wound with a traction rope. The first spring 52 is connected to the limit block and the lifting trolley 3 respectively. The other end of the limit block is fixedly connected to the pawl 54 with a screw. The lifting trolley 3 is fixedly connected to a limit post with a screw. When the limit block rotates to contact the limit post, the limit block stops rotating and the pawl 54 contacts and locks with the guide rail 2.

[0028] like Figure 4 As shown, the lower safety lock 6 includes a locking tongue 63, a pedal 61, and a second spring 65. The pedal 61 is rotatably connected to the lifting trolley 3, and the locking tongue 63 is rotatably connected to the lifting trolley 3. The locking tongue 63 has a sliding groove. One end of the pedal 61 is screwed and fixed to a slider, which slides in the sliding groove. The second spring 65 is connected to the lifting trolley 3 and the slider respectively. A limit slot 23 is provided on the guide rail 2. Rotating the pedal 61 can drive the locking tongue 63 to rotate into the limit slot 23, thereby locking the lifting trolley 3.

[0029] Preferably, the passenger basket 4 is rotatably connected to the lifting trolley 3, and the lifting trolley 3 is provided with a flipping mechanism 7, which drives the passenger basket 4 to flip relative to the lifting trolley 3.

[0030] Preferably, the flipping mechanism 7 is a hydraulic cylinder 71.

[0031] Preferably, the lifting trolley 3 is equipped with a tilting shaft 41, and the passenger basket 4 is rotatably connected to the lifting trolley 3 through the tilting shaft 41.

[0032] Preferably, the lifting trolley 3 is equipped with a first rotating shaft 62 and a second rotating shaft 64. The pedal 61 is rotatably connected to the lifting trolley 3 through the first rotating shaft 62, and the locking tongue 63 is rotatably connected to the lifting trolley 3 through the second rotating shaft 64.

[0033] Preferably, the lifting trolley 3 is equipped with a manual pump 72, which drives the hydraulic cylinder 71 to extend and retract, thereby controlling the tilting of the manned basket 4.

[0034] Preferably, the derrick is screwed with an upper hook 21 and a lower pin connection 22.

[0035] Preferably, the lifting trolley 3 is provided with a fixed pin 53, and the limiting block is rotatably connected to the lifting trolley 3 through the fixed pin 53.

[0036] like Figure 5 and Figure 6 As shown, the flipping mechanism 7 can flip the personnel basket 4 after the casing operation is completed, so that the personnel basket 4 rotates 90° and is retracted, close to the guide rail 2, avoiding the working space inside the drilling rig derrick, without hindering other drilling operations, avoiding the disassembly of the casing and the work of straightening the platform, and improving work efficiency.

[0037] The tilting mechanism 7 consists of two parts: a hydraulic cylinder 71 and a manual pump 72. It is a closed-loop system that can be tilted manually to achieve the tilting of the manned basket 4. It does not require a power source and is energy-saving.

[0038] The upper hook 21 and the lower pin connection 22 enable quick and easy installation and removal of the casing straightening platform inside the derrick.

[0039] The working principle of this technical solution is as follows: When the hoisting winch 1 drives the lifting trolley 3 to rise and fall via traction, the pulling force of the hoisting winch 1 can overcome the elastic force of the first spring 52, causing the limiting block to rotate relative to the lifting trolley 3. When the lifting trolley moves to contact the limiting post, it stops rotating, and the pawl 54 at its other end separates from the limiting post, allowing the lifting trolley 3 to move along the guide rail 2. However, in the event of an accident such as the traction rope breaking or coming loose, the limiting block, having lost traction, will be released by the elastic force of the first spring 52. The lifting trolley 3 rotates in the opposite direction under the force, causing the pawl 54 to move back to contact the guide rail 2. The pawl 54 locks onto the guide rail 2, achieving a locking function and preventing the lifting trolley 3 from falling further. Meanwhile, the lower safety lock 6 is controlled by the worker's foot. When the worker is in the personnel basket 4, stepping on the pedal 61 causes the slider to slide in the groove, thereby driving the locking tongue 63 to rotate relative to the lifting trolley 3. This causes the locking tongue 63 to move out of the limiting slot 23 of the guide rail 2, at which point the lifting trolley 3 can move along the guide rail 2. When danger occurs or the vehicle needs to stop, the foot leaves the pedal 61, and the second spring 65 drives the slider to rotate in the opposite direction to the previous rotation, causing the locking tongue 63 to move back into the limiting slot 23, thereby locking the lifting trolley 3 to the guide rail 2. Since the lower safety lock 6 can be manually controlled, when the hoisting winch 1 stops traction, the lower safety lock 6 can limit the position of the lifting trolley 3 in place of the hoisting winch 1, realizing the parking function. Compared with traditional technology, the two sets of mechanical anti-fall safety lock structures configured in this technical solution, the upper safety lock 5 and the lower safety lock 6, can lock the lifting trolley 3 to the guide rail 2 together when the winch malfunctions, thus playing a dual protection role and providing higher safety performance. During normal operation, the lower safety lock 6 can park the lifting trolley 3 in place of the hoisting winch 1, thereby freeing up the hoisting winch 1, reducing the energy consumption of the hoisting winch 1, and achieving the effect of energy saving and improving the service life of the hoisting winch 1.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.

Claims

1. A double-lock energy-saving quick casing centralizing platform, comprising a derrick, a hoisting winch (1) and a guide rail (2) are installed on the derrick, a lifting trolley (3) is arranged on the guide rail (2), the hoisting winch (1) drives the lifting trolley (3) to move along the guide rail (2), characterized in that: The lifting trolley (3) is provided with a manned basket (4), an upper safety lock (5) and a lower safety lock (6). ​ The upper safety lock (5) comprises a limiting block and a pawl (54), the limiting block is rotatably connected with the lifting trolley (3), one end of the limiting block is provided with a pulley block (51) and a first spring (52), the lifting winch (1) and the pulley block (51) are provided with a traction rope, the first spring (52) is connected with the limiting block and the lifting trolley (3) respectively, the other end of the limiting block is fixedly connected with the pawl (54), the lifting trolley (3) is fixedly connected with a limiting column, when the limiting block rotates to contact the limiting column, the limiting block stops rotating and the pawl (54) contacts and clamps the guide rail (2). The lower safety lock (6) comprises a lock tongue (63), a pedal (61) and a second spring (65), the pedal (61) is rotatably connected with the lifting trolley (3), the lock tongue (63) is rotatably connected with the lifting trolley (3), the lock tongue (63) is provided with a sliding groove, one end of the pedal (61) is fixedly connected with a sliding block, the sliding block slides in the sliding groove, the second spring (65) is connected with the lifting trolley (3) and the sliding block respectively, the guide rail (2) is provided with a limiting clamping groove (23), the pedal (61) can drive the lock tongue (63) to rotate into the limiting clamping groove (23) to lock the lifting trolley (3).

2. The dual-lock energy-saving quick casing centralizer platform according to claim 1, characterized in that: The manned basket (4) is rotatably connected with the lifting trolley (3), the lifting trolley (3) is provided with a turnover mechanism (7), the turnover mechanism (7) drives the manned basket (4) to turn over relative to the lifting trolley (3).

3. The dual-lock energy-saving quick casing centralizer platform according to claim 2, characterized in that: The turnover mechanism (7) is a liquid cylinder (71).

4. The dual-lock energy-saving quick casing centralizer platform according to claim 2, characterized in that: The lifting trolley (3) is provided with a turnover shaft (41), the manned basket (4) is rotatably connected with the lifting trolley (3) through the turnover shaft (41).

5. The dual-lock energy-saving quick casing centralizer stand of claim 1, wherein: The lifting trolley (3) is provided with a first rotating shaft (62) and a second rotating shaft (64), the pedal (61) is rotatably connected with the lifting trolley (3) through the first rotating shaft (62), the lock tongue (63) is rotatably connected with the lifting trolley (3) through the second rotating shaft (64).

6. The dual-lock energy-saving quick casing centralizer platform according to claim 3, characterized in that: The lifting trolley (3) is provided with a manual pump (72), the manual pump (72) drives the liquid cylinder (71) to extend and retract.

7. The dual-lock, energy-saving, quick-sleeve centralizer stand of claim 1, wherein: The derrick is provided with an upper hook (21) and a lower pin connection (22).

8. The dual-lock, energy-saving, quick-sleeve centralizer stand of claim 1, wherein: The lifting trolley (3) is provided with a fixed pin shaft (53), the limiting block is rotatably connected with the lifting trolley (3) through the fixed pin shaft (53).

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