CN205532269U - Just, anti - multi -functional rig that circulates - Google Patents

Abstract

The utility model discloses a forward and reverse circulation multifunctional drilling rig, which comprises a reducer, a main shaft, and a sealing mechanism; the top of the reducer is provided with a sealing mechanism, a first motor and a second motor; The two motors are correspondingly equipped with a first conversion gear box and a second conversion gear box; one end of the main shaft is connected to the elbow pipe through the reducer and the sealing mechanism, and the other end is connected to the drill pipe through the main shaft flange; the sealing mechanism includes a sealing rubber ring, a fixed The sleeve and the sealing bracket, the sealing rubber ring is set on the outer side of the main shaft, the outer side of the sealing rubber ring is covered with a fixing sleeve, and the fixing sleeve is fixed on the sealing bracket. The utility model has two motors and two conversion gear boxes, so that the drilling rig has two construction methods of positive circulation and reverse circulation at the same time, and the adaptability to the stratum requirements is wider; the sealing rubber ring is fixed on the outside of the main shaft through the fixing sleeve and the sealing bracket , When the apron needs to be replaced, it can be replaced directly without removing the main shaft, which improves the work efficiency.

Description

A forward and reverse circulation multifunctional drilling rig

technical field

The utility model relates to the field of mechanical equipment, in particular to a forward and reverse cycle multifunctional drilling rig.

Background technique

Existing rotary drilling rigs mostly use disc drilling rigs and power head drilling rigs. The disc drilling rig drives the rotary disc to rotate through the power head reducer, and the drill pipe is driven from the center hole of the rotary disc to cut the muck by driving the drill bit to rotate. There are two construction methods; 1. The positive circulation construction method is that the drill pipe is sent to the drill tip for work, and the slag is crushed into slurry and then discharged from the well hole. 2. The reverse circulation method is that the drill cuttings are pumped out from the drill pipe, discharged into the sedimentation tank, and then the water is introduced into the wellbore by the sedimentation tank to form a cycle.

Most of the power head drilling rigs are vehicle-mounted. It is a power device that is hoisted in the boom slide and can move up and down. The reverse circulation pump is installed above the power head, and there is a main shaft flange connected to the drill pipe below, which transmits power to drive the drill pipe. , the drill bit works. The power head drilling rig only has one method of reverse circulation, and it cannot work normally if it encounters a backfill layer, quicksand and easy-to-collapse formation. Moreover, there is only one rotation speed, and the rotation speed cannot be changed as required; therefore, there are certain limitations on the formation and aperture.

Among the existing rotary drilling rigs, the main disadvantage of the disc drilling rig is that the pressure of the drill tip is small, the movement is inconvenient, and the efficiency is very low, and the movement is mostly done by manpower, which is time-consuming and laborious; the main disadvantage of the power head drilling rig is that there is only one reverse circulation method. The rotation speed of the main shaft cannot be changed, which has limitations on the requirements of the formation; at the same time, the sealing rubber ring of the rotary drilling rig needs to be replaced in time during the use. Open to replace, time-consuming and laborious, reduce work efficiency.

Utility model content

Aiming at the deficiencies in the above problems, the utility model provides a forward and reverse circulation multifunctional drilling rig.

The utility model discloses a forward and reverse cycle multifunctional drilling machine, which comprises a reducer, a main shaft, a first motor, a second motor and a sealing mechanism;

The top of the reducer is provided with a sealing mechanism, a first motor and a second motor, and the bottom of the reducer is provided with a first conversion gearbox corresponding to the first motor and a second conversion gearbox corresponding to the second motor ;

One end of the main shaft is connected to the elbow pipe through the reducer and the sealing mechanism, and the other end is connected to the drill pipe through the main shaft flange;

The sealing mechanism includes a sealing rubber ring, a fixed sleeve and a sealing bracket. The sealing rubber ring is sleeved on the outside of the main shaft, the outer side of the sealing rubber ring is covered with a fixing sleeve, and the fixing sleeve is fixed on the sealing bracket.

As a further improvement of the utility model, a core tube is provided between the sealing rubber ring and the main shaft.

As a further improvement of the utility model, the first motor and the second motor are two-speed motors.

As a further improvement of the utility model, the sealing rubber ring is a Y-shaped rubber ring.

As a further improvement of the utility model, the reducer is provided with a first transmission shaft, a second transmission shaft, a third transmission shaft, a fourth transmission shaft, a fifth transmission shaft and a sixth transmission shaft; the first conversion A first gear and a second gear are arranged in the gearbox, and a fifth gear and a sixth gear are arranged in the second conversion gearbox;

The first motor is connected with the first transmission shaft through a coupling, the first gear fixed on the first transmission shaft meshes with the second gear fixed on the second transmission shaft, and the second gear is fixed on the second transmission shaft. The third gear on the third transmission shaft is meshed, and the third gear is meshed with the main shaft gear fixed on the main shaft;

The second motor is connected with the sixth transmission shaft through a shaft coupling, the sixth gear fixed on the sixth transmission shaft meshes with the fifth gear fixed on the fifth transmission shaft, and the fifth gear is fixed on the fifth transmission shaft. The fourth gear on the fourth transmission shaft is meshed, and the fourth gear is meshed with the main shaft gear fixed on the main shaft.

As a further improvement of the utility model, the middle and lower parts of the first transmission shaft and the sixth transmission shaft are provided with oil-draining blades.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model discloses a forward and reverse circulation multifunctional drilling rig. By arranging two motors and two conversion gear boxes, one machine has two working methods of forward circulation and reverse circulation at the same time, so that the adaptability of the drilling rig to the formation requirements is wider. , the operation is more flexible, time-saving and labor-saving; by setting the sealing mechanism, the sealing rubber ring is fixed on the outside of the main shaft through the fixing sleeve and the sealing bracket. When the rubber ring needs to be replaced, it can be replaced directly without removing the main shaft, which improves the work efficiency;

By setting two variable gearboxes and cooperating with two two-speed motors, four speeds can be realized through cooperation, and the performance is wider;

By arranging oil-repelling blades on the first transmission shaft and the sixth transmission shaft, the degree of atomization of the engine oil in the reducer is improved, oil leakage is effectively prevented, the time for oil replacement is prolonged, and work efficiency is improved.

Description of drawings

Fig. 1 is the schematic diagram of forward and reverse circulation multifunctional drilling rig disclosed by an embodiment of the utility model;

Fig. 2 is a schematic diagram of the transmission structure of the forward and reverse circulation multifunctional drilling rig disclosed by an embodiment of the present invention;

Fig. 3 is a schematic diagram of the gear transmission of the forward and reverse circulation multifunctional drilling rig disclosed by an embodiment of the present invention.

In the figure: 1. Reducer; 2. First motor; 3. Second motor; 4. First conversion gear box; 5. Second conversion gear box; 6. Main shaft; 7. Core tube; 8. Seal rubber ring 9, fixed sleeve; 10, sealing bracket; 11, elbow pipe; 12, main shaft flange; 13, drill pipe; 14, first transmission shaft; 15, second transmission shaft; 16, third transmission shaft; 17 , the fourth transmission shaft; 18, the fifth transmission shaft; 19, the sixth transmission shaft; 20, the first gear; 21, the second gear; 22, the third gear; 23, the fourth gear; 24, the fifth gear; 25, the sixth gear; 26, the main shaft gear; 27, the oil-draining blade.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

A forward and reverse cycle multifunctional drilling rig described in the utility model includes a reducer, a main shaft, a first motor, a second motor and a sealing mechanism;

The top of the reducer is provided with a sealing mechanism, a first motor, and a second motor, and the bottom of the reducer is provided with a first conversion gearbox corresponding to the first motor, and a second conversion gearbox corresponding to the second motor;

One end of the main shaft is connected to the elbow pipe through the reducer and the sealing mechanism, and the other end is connected to the drill pipe through the main shaft flange;

The sealing mechanism includes a sealing rubber ring, a fixed sleeve and a sealing bracket. The sealing rubber ring is set on the outer side of the main shaft, the outer side of the sealing rubber ring is covered with a fixing sleeve, and the fixing sleeve is fixed on the sealing bracket.

Further, a core tube is provided between the sealing rubber ring and the main shaft.

Further, both the first motor and the second motor are two-speed motors.

Below in conjunction with accompanying drawing 1-3, the utility model is described in further detail:

The utility model provides a forward and reverse cycle multifunctional drilling machine, which includes a reducer 1, a main shaft 6, a first motor 2, a second motor 3 and a sealing mechanism;

The top of the reducer 1 is equipped with a sealing mechanism, the first motor 1 and the second motor 2 are installed through the motor bracket, and the bottom of the reducer 1 is correspondingly provided with the first conversion gear box 4 and the second motor Two conversion gear boxes 5; the first motor 2 and the second motor 3 select YD-12/20KW-12/6 grade two-speed motors, and the two-speed motors themselves have two speeds;

The main shaft 6 passes through the reducer 1 and the sealing mechanism. The main shaft 6 is a hollow main shaft. The end of the main shaft 6 close to the sealing mechanism is connected with an elbow tube 11. The elbow tube 11 is located inside the hollow main shaft. The function of the elbow tube is positive circulation. Water, the pipeline for reverse circulation of water. The other end of the main shaft 6 is connected to the drill pipe 13 and the drill bit through the main shaft flange 12, and the main shaft flange 12 is rotated by the main shaft 6 to transmit power to the drill pipe 13 and the drill bit for drilling and cutting; the sealing mechanism includes a sealing rubber ring 8, a fixed sleeve 9 And sealing support 10, core pipe 7 is set on the outside of main shaft 6, and sealing rubber ring 8 is set on the outside of core pipe 7. The outer side of the ring 8 is covered with a fixed sleeve 9, and the fixed sleeve 9 is fixed on the sealing bracket 10. The core tube 7 and the main shaft 6 are connected together to rotate, the outer diameter of the core tube 7 and the inner diameter of the sealing rubber ring 8 do mutual movement, and the sealing rubber ring 8 does not rotate, thus completing the sealing function. The sealing rubber ring 8 is fixed on the outer side of the main shaft through the fixing sleeve 9 and the sealing bracket 10, when the sealing rubber ring 8 needs to be replaced, it can be directly replaced without removing the main shaft 6, which improves the work efficiency.

The reducer 1 disclosed in the utility model is provided with a first transmission shaft 14, a second transmission shaft 15, a third transmission shaft 16, a fourth transmission shaft 17, a fifth transmission shaft 18 and a sixth transmission shaft 19; The first gear 20 and the second gear 21 are arranged in the gearbox 4, and the fifth gear 24 and the sixth gear 25 are arranged in the second conversion gearbox 5; the first motor 2 is connected with the first transmission shaft 14 through a coupling , the first gear 20 fixed on the first transmission shaft 14 meshes with the second gear 21 fixed on the second transmission shaft 15 , and the second gear 21 meshes with the third gear 22 fixed on the third transmission shaft 16 meshing, the third gear 22 meshes with the main shaft gear 26 fixed on the main shaft 6; the second motor 3 is connected with the sixth transmission shaft 19 through a coupling, and the sixth gear 25 fixed on the sixth transmission shaft 19 and the fixed The fifth gear 24 on the fifth transmission shaft 18 meshes, the fifth gear 24 meshes with the fourth gear 23 fixed on the fourth transmission shaft 17 , the fourth gear 23 meshes with the main shaft gear 26 fixed on the main shaft 6 Mesh. During use, by opening the first conversion gearbox 4 and the second conversion gearbox 5 to replace the first gear 20, the second gear 21, the fifth gear 24 and the sixth gear 25 to change the speed of the speed reducer 1, two Rotational speed adjustment, and with two double-speed motors, four drilling speeds can be realized.

The utility model is equipped with oil-draining vanes 27 at the middle and lower parts of the first transmission shaft 14 and the sixth transmission shaft 19, which improves the degree of atomization of the oil in the reducer, effectively prevents oil leakage, and prolongs the time for oil replacement. Improved work efficiency.

The utility model discloses a forward and reverse circulation multifunctional drilling rig. By arranging two motors and two conversion gear boxes, one machine has two working methods of forward circulation and reverse circulation at the same time, so that the adaptability of the drilling rig to the formation requirements is wider. , the operation is more flexible, time-saving and labor-saving; by setting the sealing mechanism, the sealing rubber ring is fixed on the outside of the main shaft through the fixing sleeve and the sealing bracket. When the rubber ring needs to be replaced, it can be replaced directly without removing the main shaft, which improves the work efficiency; By setting two variable gearboxes and cooperating with two two-speed motors, four speeds can be realized through cooperation, and the performance is wider; by setting oil-repelling blades on the first transmission shaft and the sixth transmission shaft, the internal speed of the reducer is improved. The degree of atomization of the oil effectively prevents oil leakage, prolongs the time for oil replacement and improves work efficiency.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. A forward and reverse circulation multifunctional drilling machine is characterized in that it comprises a speed reducer (1), a main shaft (6), a first motor (2), a second motor (3) and a sealing mechanism; The top of the reducer (1) is provided with a sealing mechanism, a first motor (2) and a second motor (3), and the bottom of the reducer (1) is provided with a first conversion gear corresponding to the first motor (2) A box (4), and a second conversion gearbox (5) corresponding to the second motor (3); One end of the main shaft (6) is connected to the elbow pipe (11) through the reducer (1) and the sealing mechanism, and the other end is connected to the drill pipe (13) through the main shaft flange (12); The sealing mechanism includes a sealing rubber ring (8), a fixed sleeve (9) and a sealing bracket (10), the sealing rubber ring (8) is set on the outside of the main shaft (6), and the sealing rubber ring (8) is set outside There is a fixed sleeve (9), and the fixed sleeve (9) is fixed on the sealing bracket (10). 2. The forward and reverse circulation multifunctional drilling machine according to claim 1, characterized in that, a core pipe (7) is provided between the sealing rubber ring (8) and the main shaft (6). 3. The forward and reverse circulation multifunctional drilling machine according to claim 1, characterized in that, both the first motor (2) and the second motor (3) are two-speed motors. 4. The forward and reverse circulation multifunctional drilling rig according to claim 1, characterized in that the sealing rubber ring (8) is a Y-shaped rubber ring. 5. The forward and reverse circulation multifunctional drilling rig according to claim 1, characterized in that, the reducer (1) is provided with a first transmission shaft (14), a second transmission shaft (15), a third transmission shaft shaft (16), the fourth transmission shaft (17), the fifth transmission shaft (18) and the sixth transmission shaft (19); the first conversion gear box (4) is provided with the first gear (20) and the second Two gears (21), the fifth gear (24) and the sixth gear (25) are arranged in the second conversion gearbox (5); The first motor (2) is connected to the first transmission shaft (14) through a shaft coupling, and the first gear (20) fixed on the first transmission shaft (14) is fixed on the second transmission shaft (15) The second gear (21) is meshed, and the second gear (21) is meshed with the third gear (22) fixed on the third transmission shaft (16), and the third gear (22) is meshed with the third gear (22) fixed on the The main shaft gear (26) on the main shaft (6) is meshed; The second motor (3) is connected to the sixth transmission shaft (19) through a coupling, and the sixth gear (25) fixed on the sixth transmission shaft (19) is fixed on the fifth transmission shaft (18) The fifth gear (24) is meshed, and the fifth gear (24) is meshed with the fourth gear (23) fixed on the fourth transmission shaft (17), and the fourth gear (23) is meshed with the fourth gear (23) fixed on The main shaft gear (26) on the main shaft (6) meshes. 6. The forward and reverse circulation multifunctional drilling rig according to claim 5, characterized in that, the middle and lower parts of the first transmission shaft (14) and the sixth transmission shaft (19) are equipped with oil-draining blades (27) .