CN205297483U - Beam -pumping unit is driven on top - Google Patents

Abstract

The utility model relates to a top drive pumping unit. The technical solution is: motor assembly, coupling brake, speed reducer, power roller assembly, and guide roller assembly are installed on the top of the tower assembly; the above-mentioned tower assembly is provided with a guide rail system along the height direction. Both sides of the above-mentioned balance box assembly are equipped with righting pulleys, and the top is provided with a rubber belt assembly connecting ear plate; one end of the above-mentioned rubber belt assembly is connected to the balance box assembly, and the other end is connected to the rope hanger connected to the polished rod. The above-mentioned ladder assembly, guardrail assembly, lower limit switch, magnetic sensor and upper limit switch are installed on the tower assembly. The beneficial effects are: the traditional beam pumping unit model that is driven through the cooperation of the reducer, the gear and the crank connecting rod mechanism is changed; compared with the prior art pumping unit, the utility model has a volume Small size, small footprint, long stroke, low noise, high mechanical transmission efficiency, etc.

Description

Top drive pumping unit

technical field

The utility model relates to an oil mining machine, in particular to a top drive pumping unit.

Background technique

At present, there are many types of pumping units used in oil production in various oil fields, including beam pumping units, hydraulic pumping units, chain pumping units and the like. Among them, the beam pumping unit has many parts, heavy installation workload, low efficiency, complicated equipment maintenance, high installed power, large energy consumption, large load change and short stroke. Hydraulic pumping units have high energy consumption and low efficiency; chain pumping units are noisy and pollute the environment with oil leakage;

Contents of the invention

The purpose of this utility model is to provide a top drive pumping unit with the advantages of small size, small floor space, long stroke, adjustable stroke, good stability, low noise and high transmission efficiency in view of the above-mentioned defects in the prior art. Advanced merit.

Its technical solution is: including motor assembly (1), coupling brake (2), reducer (3), power roller assembly (4), guide roller assembly (5), base (6), electric control Cabinet assembly (7), balance box assembly (8), tower assembly (9), rubber belt assembly (10), guardrail assembly (11), ladder assembly (12), lower limit switch (13 ), magnetic sensor (14), upper limit switch (15), the motor assembly (1), coupling brake (2), reducer (3), power roller assembly (4), guide roller assembly The assembly (5) is installed on the top of the tower assembly (9), and the motor assembly (1) and the reducer (3) are connected by a coupling brake (2); the bottom of the tower assembly (9) is installed on On the base (6), and the electric control cabinet assembly (7) is also installed on the base (6); the guardrail assembly (11), ladder assembly (12), Lower limit switch (13), magnetic sensor (14), upper limit switch (15); in addition, one end of the rubber belt assembly (10) is connected to the sucker rod, and the other end bypasses the guide roller assembly (5) and the power roller The assembly (4) is connected to the balance box assembly (8); the balance box assembly (8) is installed in the tower assembly (9) of the pumping unit; the electric control cabinet assembly (7) outputs power to the motor assembly (1) Power supply, the motor assembly (1) rotates forward and reverse alternately as required and drives the power drum assembly (4) to rotate forward and reverse alternately through the coupling brake (2) and reducer (3); the power drum The assembly (4) drives the rubber belt assembly (10) to do alternate reciprocating motions through frictional force and drives the balance box assembly (8) and the sucker rod column to reciprocate linearly up and down to realize the continuous oil pumping operation of the pumping unit.

The output shaft of the above-mentioned speed reducer (3) is an integral long shaft, on which the power drum assembly (4) is installed, one end of the long shaft is supported by the speed reducer (3), and the other end is supported by the bearing seat assembly.

The above-mentioned guide roller assembly (5) is aligned with the center of the power roller assembly (4), and the guide roller assembly (5) changes the horizontal position of the rubber belt assembly (10), so that the center of the power roller assembly (4) is close to The center of the tower assembly (9) reduces the turning moment of the complete machine.

The above-mentioned balance box assembly (8) is installed in the tower assembly (9) of the pumping unit, and righting pulleys are installed on both sides. Guide rails are arranged in the tower assembly along the height direction of the tower, and the righting pulleys of the balance box are along the The guide rail in the tower assembly (9) reciprocates up and down, and the top of the balance box assembly (8) is provided with a connecting ear plate of the rubber belt assembly (10).

The beneficial effect of the utility model is that: the traditional beam pumping unit model that is driven through the cooperation of the reducer, the gear and the crank connecting rod mechanism is changed; the rubber belt assembly, the power roller assembly and the guide roller assembly are used to The rotary motion of the driving motor assembly is changed into the linear reciprocating motion of the sucker rod string, so that the transmission structure of the motor assembly driving the linear reciprocating motion of the sucker rod string is simple, small in size, less in parts, and less in energy consumption during the transmission process, improving The mechanical transmission efficiency is improved; the rubber belt is used for connection, and the rubber belt has an elastic buffering effect, which reduces the reversing impact of the pumping unit, makes the operation of the sucker rod column more stable, and the performance of the power indicator diagram is more full, thereby prolonging the life of the oil well. Maintenance period and improved pump efficiency. At the same time, the speed and number of revolutions of the motor can be controlled to adjust the stroke and stroke times of the sucker rod, so that the stroke times of the sucker rod can be set according to the well conditions, which improves the performance of the oil production system; the balance box and the sucker rod are connected by gravity balance The weight of the column is equal, and the two ends of the rubber belt are always in a balanced state, so that the power system only needs to provide a small force to the rubber belt, reducing the energy consumption of the power system. Compared with the pumping unit in the prior art, the pumping unit of the utility model has the advantages of small volume, small footprint, long stroke, low noise and high mechanical transmission efficiency.

Description of drawings

Accompanying drawing 1 is the three-dimensional structural representation of the utility model;

Accompanying drawing 2 is the top view of the utility model;

Accompanying drawing 3 is the front view of the utility model;

Accompanying drawing 4 is the side view of the utility model;

In the above picture: motor assembly (1), coupling brake (2), reducer (3), power roller assembly (4), guide roller assembly (5), base (6), electric control cabinet assembly (7), balance box assembly (8), tower assembly (9), rubber belt assembly (10), guardrail assembly (11), ladder assembly (12), lower limit switch (13), Magnetic sensor (14), upper limit switch (15).

detailed description

In conjunction with accompanying drawing 1-4, the utility model is further described:

The top drive pumping unit mentioned in the utility model includes a motor assembly (1), a coupling brake (2), a reducer (3), a power roller assembly (4), a guide roller assembly (5), Base (6), electric control cabinet assembly (7), balance box assembly (8), tower assembly (9), rubber belt assembly (10), guardrail assembly (11), ladder assembly (12 ), lower limit switch (13), magnetic sensor (14), upper limit switch (15), the motor assembly (1), coupling brake (2), reducer (3), power drum assembly (4), the guide roller assembly (5) is installed on the top of the tower assembly (9), and the motor assembly (1) and the reducer (3) are connected by a coupling brake (2); the tower assembly The bottom of (9) is installed on the base (6), and the electric control cabinet assembly (7) is also installed on the base (6); the guardrail assembly (11), Ladder assembly (12), lower limit switch (13), magnetic sensor (14), upper limit switch (15); in addition, one end of the rubber belt assembly (10) is connected to the sucker rod, and the other end bypasses the guide roller assembly (5) and the power drum assembly (4) are connected to the balance box assembly (8); the balance box assembly (8) is installed in the tower assembly (9) of the pumping unit; the electric control cabinet assembly (7 ) output power to the motor assembly (1), the motor assembly (1) rotates forward and reverse alternately according to the requirements and drives the power drum assembly (4) through the coupling brake (2) and reducer (3) Reverse and rotate alternately; the power drum assembly (4) drives the rubber belt assembly (10) to make alternate reciprocating motions through friction and drives the balance box assembly (8) and the sucker rod column to make up and down reciprocating linear motions to realize the pumping unit Continuous oil pumping operations.

Wherein, the output shaft of the speed reducer (3) is an integral long shaft, on which the power drum assembly (4) is installed, one end of the long shaft is supported by the speed reducer (3), and the other end is supported by the bearing seat assembly.

The above-mentioned guide roller assembly (5) is aligned with the center of the power roller assembly (4), and the guide roller assembly (5) changes the horizontal position of the rubber belt assembly (10), so that the center of the power roller assembly (4) is close to The center of the tower assembly (9) reduces the turning moment of the complete machine.

The above-mentioned balance box assembly (8) is installed in the pumping unit tower assembly (9), with righting pulleys installed on both sides, and the balance box righting pulleys reciprocate up and down along the guide rails in the tower assembly (9) , the top of the balance box assembly (8) is provided with a connecting ear plate for the rubber belt assembly (10).

The specific method of use of the top drive pumping unit mentioned in the utility model includes the following steps:

(a) After the top drive pumping unit is assembled, when the system is not started, the balance box assembly (8) is at the bottom of the stroke; after the system is started, the motor assembly (1) directly drives the power drum (4) through the reducer (3) ), the power drum (4) drives the balance box assembly (8) connected to the rubber belt assembly (10) to move upward through the friction with the rubber belt assembly (10) and the gravity of the sucker rod column. When the balance box assembly (8) passes through the magnetic sensor (14), a commutation signal is generated and supplied to the electric control cabinet assembly (7), and the electric control cabinet assembly (7) controls the rotation speed of the motor assembly (1) according to the encoder signal , through the encoder of the power system, the revolution and speed signals are fed back to the electric control cabinet assembly (7), and finally the balance box assembly (8) reaches the upper part of the tower assembly (9) (the end of the downstroke), The motor assembly (1) stops, at this time the balance box assembly (8) is located on the upper part of the tower assembly (9), and the rope hanger connected to the sucker rod is at the lowest position, that is, the lowering of the top drive pumping unit is completed. stroke. The electric control cabinet assembly (7) controls the reversing rotation of the motor assembly (1), and the power of the power system and the gravity of the balance box assembly (8) jointly drive the sucker rod string upward. When the sensor (14) generates a commutation signal and supplies it to the electric control cabinet assembly (7), the electric control cabinet assembly (7) controls the rotation speed of the motor according to the encoder signal, and feeds back the rotation number and speed signal to the motor through the encoder of the power system. The electric control cabinet assembly (7) finally makes the balance box assembly (8) reach the lower part of the tower assembly (9) (the end of the upstroke), and the motor stops. At this time, the balance box assembly (8) is located on the tower The lower part of the frame assembly (9), the rope hanger connected to the sucker rod is in the highest position, that is, the upstroke of the top drive pumping unit is completed. The up and down strokes of the pumping unit work alternately and continuously to realize the continuous oil pumping operation of the pumping unit.

(b) Cut off the power supply, the motor assembly (1) stops the power output, the coupling brake (2) brakes reliably, and all up and down reciprocating parts quickly stop at the immediate position, and will not move without manual operation;

The above are only preferred embodiments of the present utility model, and any person skilled in the art may use the above-mentioned technical solutions to modify the present utility model or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the utility model belongs to the protection scope of the utility model.

Claims (4)

1. a top drive pumping unit, it is characterized in that: include motor assembly (1), shaft coupling brake (2), decelerator (3), power drum assembly (4), guide pulley assembly (5), base (6), electrical control cubicles assembly (7), tandem-driving bogie assembly (8), pylon assembly (9), balata belt assembly (10), guardrail assembly (11), cat ladder assembly (12), lower position switch (13), Magnetic Sensor (14), upper limit position switch (15), described motor assembly (1), shaft coupling brake (2), decelerator (3), power drum assembly (4), guide pulley assembly (5) is arranged on pylon assembly (9) top, shaft coupling brake (2) is adopted to couple between motor assembly (1) with decelerator (3), the bottom of pylon assembly (9) is arranged on base (6), and also installs electrical control cubicles assembly (7) on base (6), described pylon assembly (9) is provided with guardrail assembly (11), cat ladder assembly (12), lower position switch (13), Magnetic Sensor (14), upper limit position switch (15), it addition, one end connecting with pumping rod of balata belt assembly (10), the other end walks around guide pulley assembly (5) and power drum assembly (4) connects tandem-driving bogie assembly (8), tandem-driving bogie assembly (8) is arranged in the pylon assembly (9) of oil pumper, electrical control cubicles assembly (7) output power is powered to motor assembly (1), and motor assembly (1) rotating alternate rotation on request also drives power drum assembly (4) to make rotating alternate rotation by shaft coupling brake (2), decelerator (3), power drum assembly (4) is made alternate reciprocating motion by frictional force drives balata belt assembly (10) and drives tandem-driving bogie assembly (8) and rod string to make up and down reciprocatingly rectilinear motion to realize oil pumper and pump continuously operation.

2. top according to claim 1 drive pumping unit, is characterized in that: the output shaft of described decelerator (3) is overall major axis, and major axis is installed power drum assembly (4), and one end of major axis is supported by decelerator (3), and the other end is supported by bearing block assembly.

3. top according to claim 1 drive pumping unit, it is characterized in that: described guide pulley assembly (5) and power drum assembly (4) center alignment, guide pulley assembly (5) changes the horizontal level of balata belt assembly (10), make the center near pylon assembly (9), the center of power drum assembly (4) so that the turning torque that complete machine is subject to reduces.

4. top according to claim 1 drive pumping unit, it is characterized in that: described tandem-driving bogie assembly (8) is arranged in oil pumper pylon assembly (9), both sides are provided with righting pulley, in pylon assembly (9), tower height direction is provided with guide rail, tandem-driving bogie righting pulley pumps along the guide rail in pylon assembly (9), and described tandem-driving bogie assembly (8) top is provided with the connection otic placode of balata belt assembly (10).