CN203213981U - Laterally-opened hydraulic elevator of drilling machine - Google Patents

Abstract

The utility model discloses a side-opening hydraulic elevator for drilling rigs, wherein the structure of the double-hydraulic cylinder driving connecting rod control mechanism includes a deadbolt driving oil cylinder and a door driving oil cylinder, and the piston rod end and ear plate of the deadbolt driving oil cylinder Ⅰ. Connecting rod Ⅰ, disc lever, connecting rod Ⅱ, and lock tongue body are connected. Ear plate Ⅰ is also connected with ear plate Ⅱ, connecting rod Ⅲ, and disc lever; the end of the piston rod of the door drive cylinder is connected with ear plate Ⅲ, Connecting rod IV is connected in turn, and connecting rod IV is connected with the left and right elevator gates; the structure of the replaceable bushing mechanism is that the bushing bushing is fixed on the main body of the elevator and the gate, and a bushing is set at the outer end of the bushing positioning pin. Core lock pin assembly; the structure of the lock tongue and lever self-locking double insurance locking mechanism is that the lever pin shaft I is in open and closed contact with the bushing bushing, the lever pin shaft I is connected with the lever and the lever pin shaft II in sequence, and the lever pin shaft Ⅱ is in contact with the lock tongue body for opening and closing. The device of the utility model can realize long-distance remote control operation.

Description

Drilling rig side opening hydraulic elevator

technical field

The utility model belongs to the technical field of petroleum drilling and production equipment, and relates to a side-opening hydraulic elevator of a drilling rig.

Background technique

As one of the key equipment for oil drilling, the elevator is mainly used for lifting and lowering the drill string. At present, the more common form of elevators is the manual mechanical type, and one type of elevator can only meet the needs of lifting and lowering the corresponding specifications and models of pipe strings. Its shortcomings are: all manual work, labor intensity of workers is high, work safety cannot be guaranteed, seriously restricts the efficiency of drilling and workover, and the adaptability is not enough.

Utility model content

The purpose of the utility model is to provide a side-opening hydraulic elevator for drilling rigs, which solves the problems of frequent replacement, poor safety and high labor intensity of the manual mechanical elevators in the prior art.

The technical solution adopted by the utility model is a side-opening hydraulic elevator for drilling rigs, including a double-hydraulic cylinder drive link control mechanism, a replaceable core-filling mechanism, a lock tongue and a lever self-locking double safety locking mechanism,

The structure of the double-hydraulic-cylinder driving link control mechanism includes a deadbolt driving cylinder and a door driving cylinder, the piston rod end of the deadbolt driving cylinder and the ear plate I, connecting rod I, disc lever, and connecting rod II Connect in sequence, connecting rod II is connected with the lock tongue body, ear plate I is additionally connected with ear plate II and connecting rod III, and connecting rod III is in contact with the disc lever; the end of the piston rod of the door drive cylinder is connected with the ear plate III and connecting rod Ⅳ is connected in turn, and the connecting rod Ⅳ is connected with the left and right elevator gates;

The structure of the replaceable bushing mechanism is that it includes a bushing bushing, the bushing bushing is fixed on the main body of the elevator and the gate through the bushing positioning pin, and a bushing lock pin assembly is arranged at the outer end of the bushing positioning pin. become;

The structure of the locking tongue and the lever self-locking double safety locking mechanism is that it includes the lever pin shaft I, the lever pin shaft I is in open and closed contact with the bushing bushing, and the lever pin shaft I is connected with the lever and the lever pin shaft II in sequence , the lever pin shaft II is in contact with the lock tongue body for opening and closing.

The beneficial effects of the utility model are: it is applicable to the lifting system of land drilling rigs and offshore drilling platforms, uses a double-hydraulic cylinder drive link control mechanism, a replaceable core-filling mechanism for clamping and lifting pipe strings of different specifications, and prevents the elevator from being stuck in the The lock tongue and lever self-locking double safety locking mechanism that automatically opens during the operation; the structure is novel, the operation is convenient, safe and reliable, and the degree of automation is high, which can realize long-distance remote control operation.

Description of drawings

Fig. 1 is the structural representation of the dual-hydraulic cylinder drive link control mechanism in the utility model device;

Fig. 2 is the schematic structural view of the replaceable bushing mechanism in the device of the present invention;

Fig. 3 is a schematic diagram of the deadbolt and lever self-locking double safety locking mechanism in the device of the present invention.

In the figure, 1. Lock bolt drive cylinder, 2. Door drive cylinder, 3. Ear plate Ⅰ, 4. Ear plate Ⅱ, 5. Connecting rod Ⅰ, 6. Disc lever, 7. Connecting rod Ⅱ, 8. Connecting rod Ⅲ, 9. Connecting rod Ⅳ, 10. Lug plate Ⅲ, 11. Bushing bushing, 12. Bushing positioning pin, 13. Bushing lock pin assembly, 14. Lock tongue body, 15. Lever pin shaft Ⅰ, 16. lever, 17. spring, 18. lever pin II.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The side-opening hydraulic elevator structure of the drilling rig of the utility model is composed of three parts: a double-hydraulic-cylinder drive link control mechanism, a replaceable core-filling mechanism, a deadbolt and a lever self-locking double-safety locking mechanism.

As shown in Figure 1, the structure of the double-hydraulic cylinder drive link control mechanism is, including the deadbolt drive cylinder 1 and the door drive cylinder 2, the piston rod end of the deadbolt drive cylinder 1 and the ear plate I3, the connecting rod I5, the plate Type lever 6 and connecting rod II7 are connected sequentially, connecting rod II7 is connected with lock tongue body 14, lug plate I3 is additionally connected with lug plate II4 and connecting rod III8, and connecting rod III8 is in contact with disc lever 6; the piston of door drive cylinder 2 The end of the rod is connected with the lug plate III10 and the connecting rod IV9 in turn, and the connecting rod IV9 is connected with the left and right elevator gates.

As shown in Figure 2, the structure of the replaceable bushing mechanism is to include a bushing 11, the bushing 11 is fixed on the main body of the elevator and the gate through the bushing positioning pin 12, the inner hole of the bushing 11 It is a 360° full-enclosed structure, and different internal diameters are made into different specifications, which can meet the needs of lifting and lowering operations of pipe strings of different specifications. In order to prevent the bushing bushing 11 from falling off during the working process, a There is a bushing lock pin assembly 13. When replacing the bushing bushing 11, the bushing lock pin assembly 13 must be pulled out and the replacement work can be carried out.

As shown in Figure 3, the structure of the lock tongue and lever self-locking double insurance locking mechanism is that it includes the lever pin I15, the lever pin I15 is in open and closed contact with the bushing 11, the lever pin I15 is in contact with the lever 16, the lever The pin shafts II18 are connected sequentially. The lever pin shaft II18 is provided with a spring 17. The lever pin shaft II18 is in open and closed contact with the lock tongue body 14. When the lever pin shaft II18 blocks the lock tongue body 14, the lock tongue body 14 is positioned and locked, and the lever pin When the shaft II 18 exits and does not contact the deadbolt body 14, the deadbolt body 14 is in a free state.

When the lock tongue body 14 is closed and the elevator is working, the bushing 11 is under pressure and transmits the force to the lever pin shaft I15, and the lever pin shaft II18 blocks the lock tongue body 14 through the sequence action of the lever 16 and the spring 17. , to prevent the elevator from opening automatically in the middle of the operation. When the self-locking function is released, the action is reversed.

The utility model implements the opening action process of the elevator door is:

The first step: the lock tongue drives the hydraulic cylinder 1 to retract, the ear plate I3, the connecting rod I5, the disc lever 6, and the connecting rod II7 act in sequence to open the lock tongue body 14.

Step 2: The gate drives the oil cylinder 2 to retract, lug plate II4, lug plate III10, connecting rod III8, and connecting rod IV9 move in sequence, and the gates of the left and right elevators are opened.

The closing action of the elevator gate is opposite to the opening action of the gate.

The device of the utility model is mainly used for lifting and lowering drill strings, and is suitable for hydraulically driven fully automatic drilling rig hydraulic elevators used in the lifting system of land drilling rigs and offshore drilling rigs. The opening and closing of the left and right valves is realized through the linkage mechanism; the elevator is equipped with a self-locking mechanism of the deadbolt body to avoid the unlocking of the deadbolt body due to vibration and other reasons, resulting in safety accidents.

Claims (3)

1. A side-opening hydraulic elevator for drilling rigs, characterized in that: it includes a double-cylinder drive link control mechanism, a replaceable bushing mechanism, a dead bolt and a lever self-locking double safety locking mechanism, The structure of the double-hydraulic-cylinder driving link control mechanism is that it includes the deadbolt driving cylinder (1) and the gate driving cylinder (2), the end of the piston rod of the deadbolt driving cylinder (1) and the ear plate I (3) , connecting rod I (5), disc lever (6), and connecting rod II (7) are connected sequentially, the connecting rod II (7) is connected with the lock tongue body (14), and the ear plate I (3) is additionally connected with the ear plate II (4), connecting rod III (8), and the connecting rod III (8) is in contact with the disc lever (6); the end of the piston rod of the door drive cylinder (2) is connected with the lug plate III (10), the connecting rod IV ( 9) Connect in sequence, the connecting rod IV (9) is connected with the left and right elevator gates; The structure of the replaceable bushing mechanism is that it includes a bushing bushing (11), the bushing bushing (11) is fixed on the main body of the elevator and the gate through the bushing positioning pin (12), and the bushing positioning pin (12) The outer end is provided with a bushing lock pin assembly (13); The structure of the locking tongue and the lever self-locking double insurance locking mechanism is that it includes the lever pin shaft I (15), the lever pin shaft I (15) is in open and closed contact with the bushing (11), and the lever pin shaft I (15) is sequentially connected with lever (16) and lever pin shaft II (18), and lever pin shaft II (18) is in contact with the deadbolt body (14). 2. The side-opening hydraulic elevator for drilling rigs according to claim 1, characterized in that: the inner hole of the bushing (11) has a 360° full-enclosed structure, and different inner diameters are made into different specifications. 3. The side-opening hydraulic elevator for drilling rig according to claim 1, characterized in that: said lever pin II (18) is provided with a spring (17).

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