CN212642680U

CN212642680U - Oil pumping unit

Info

Publication number: CN212642680U
Application number: CN202021556591.8U
Authority: CN
Inventors: 房坤; 赵建伟
Original assignee: Shandong Aozhou Petroleum Equipment Co ltd
Current assignee: Shandong Aozhou Petroleum Equipment Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-02
Anticipated expiration: 2030-07-31

Abstract

The utility model relates to a beam-pumping unit belongs to oil well pumping unit technical field for the oil field. The device comprises a crank, a cross beam and a connecting rod, wherein the first end of the crank is connected with the first end of the connecting rod; the S-shaped beam connecting device is characterized by further comprising an S-shaped arm, the middle of the S-shaped arm is rotatably connected with the support, the side face of the second end of the cross beam is provided with a sliding groove, the first end of the S-shaped arm is rotatably connected with the sliding groove, and the second end of the S-shaped arm is rotatably connected with the second end of the connecting rod. The utility model discloses balanced effectual, simple structure connects reliably durable.

Description

Oil pumping unit

Technical Field

The utility model relates to a beam-pumping unit belongs to oil well pumping unit technical field for the oil field.

Background

The pumping unit is the main equipment for oil extraction production in the oil field at present. The beam pumping unit is widely used in various oil fields. Beam-pumping unit belongs to four-bar linkage, and its structure includes: walking beam, support, horse head, polished rod eye, connecting rod, reduction gear, by handle, base and motor, on the support passes through the bolt fastening on the base, polished rod eye fixed connection was equipped with the motor on the horse head on the base, and the motor passes through the belt and is connected with the reduction gear, and the crank is connected to the reduction gear, and the crank passes through the crank pin and is articulated with the connecting rod, and the connecting rod other end passes through the round pin hub connection with the crossbeam.

In the operation process, because the connecting rod and the cross beam are main stress concentration parts, the connecting rod and the cross beam have the following technical defects:

1. the balancing effect is poor.

2. The peak torque is large and the loss is large.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the pumping unit overcomes the defects of the prior art, has good balance effect, simple structure and reliable and durable connection.

The pumping unit of the utility model comprises a crank, a first end of the crank is connected with a first end of a connecting rod, and the pumping unit also comprises a beam, the bottom of the beam is rotatably connected with a bracket, and a horse head is arranged at the first end of the beam; the S-shaped beam connecting device is characterized by further comprising an S-shaped arm, the middle of the S-shaped arm is rotatably connected with the support, the side face of the second end of the cross beam is provided with a sliding groove, the first end of the S-shaped arm is rotatably connected with the sliding groove, and the second end of the S-shaped arm is rotatably connected with the second end of the connecting rod.

Working process or working principle:

the motor drives the speed reducing motor, the speed reducer drives the speed reducing box, the speed reducing box is connected with the crank, the crank acts to drive the connecting rod, the connecting rod drives the S arm to drive the cross beam to act, the cross beam acts up and down to drive the mule head to act up and down, and the mule head is provided with the rope hanger and the rope hanger.

The S arm is connected with the connecting rod and the cross beam, the S arm can slide and rotate on the cross beam, the length of the connecting rod is shortened by the connection of the S arm, the middle part of the S arm is connected with the support, the force arm is shortened, the integral balance effect is good, the operation is stable, the structure is simple, and the connection is reliable and durable.

Wherein:

preferably, the sliding groove is a small-opening I-shaped groove, the first end of the S-shaped arm is connected with a sliding shaft through a bearing, and the tail end of the sliding shaft is provided with a pulley which is arranged in the I-shaped groove.

The pulley is adopted, and rolling friction is used for replacing sliding friction, so that smooth and coherent working states are ensured.

Preferably, the two sides of the cross beam are symmetrically provided with the S arms, and the middle parts of the two S arms are connected through a connecting rod.

The two sides of the cross beam are both provided with sliding grooves, the two S arms are connected with the cross beam through the sliding grooves, and the two sliding grooves in the two sides of the cross beam are not arranged on the cross beam in a penetrating mode, so that the enough strength of the cross beam can be kept. Two S arms are connected through the connecting rod, can increase joint strength, also can guarantee the uniformity of S arm motion.

Preferably, the connecting rod is arranged in the support in a penetrating mode, and the S arm is connected with the connecting rod through the second bearing.

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

1. the utility model discloses a set up S arm and connect crossbeam and connecting rod, slide on the crossbeam through the S arm and add the rotation connection mode, shortened the arm of force, whole balanced effectual, the operation is stable, simple structure connects reliably durable.

2. Through setting up the S arm, changed the atress direction, moreover, have certain pliability, cushioned impact and the damage of big moment of torsion to equipment, prolonged equipment life.

Drawings

FIG. 1: the structure of an embodiment of the utility model is schematically shown,

FIG. 2: another structural diagram of an embodiment of the present invention,

FIG. 3: the connecting structure of the sliding groove and the pulley is schematically shown.

In the figure: 1. the device comprises a motor 2, a speed reducer 3, a reduction gearbox 4, a crank 5, a connecting rod 6, an S-shaped arm 7, a sliding groove 8, a cross beam 9, a horse head 10, a polished rod eye 11, a polished rod eye 12, a support 13 and a base;

61. a first bearing 62, a second bearing 63, a third bearing 64, a connecting rod 65, a sliding shaft 66 and a pulley.

Detailed Description

The technical solution in the embodiments of the present invention will be further clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention:

example 1

As shown in fig. 1 to 3, the pumping unit of the present invention comprises a crank 4, a first end of the crank 4 is connected to a first end of a connecting rod 5, and further comprises a beam 8, the bottom of the beam 8 is rotatably connected to a bracket 12, the bottom of the beam 8 is connected to the bracket 12 through a bearing, and a horse head 9 is arranged at the first end of the beam 8; still include S arm 6, S arm 6 middle part is rotationally connecting support 12, and sliding tray 7 has been seted up to crossbeam 8 second end side, and sliding tray 7 is rotationally connected to S arm 6 first end, and connecting rod 5 second end is rotationally connected to S arm 6 second end.

The sliding groove 7 is a small-opening I-shaped groove, the first end of the S-shaped arm 6 is connected with a sliding shaft 65 through a first bearing 61, a pulley 66 is arranged at the tail end of the sliding shaft 65, and the pulley 66 is arranged in the I-shaped groove. The pulley is adopted, so that the S-shaped arm can keep smooth when sliding along the sliding groove, friction is reduced, and smooth and unsmooth movement is ensured.

The two sides of the beam 8 are symmetrically provided with 2S arms 6, and the middle parts of the two S arms 6 are connected through a connecting rod 64. The connecting rod is arranged in the bracket in a penetrating way, and the S-arm 6 is connected with the connecting rod 64 through a second bearing 62.

The two sides of the cross beam are both provided with sliding grooves, the two S arms are connected with the cross beam through the sliding grooves, the sliding grooves are not arranged on the cross beam in a penetrating mode, and the sufficient strength of the cross beam can be kept. Two S arms are connected through the connecting rod, can increase joint strength, also can guarantee the uniformity of S arm motion.

The second end of the S-shaped arm 6 is connected with the connecting rod 5 through a bearing III 63 and a pin shaft.

The motor 1 is connected with the speed reducer 2, the speed reducer 2 is connected with the reduction gearbox 3, the reduction gearbox 3 is connected with the crank 4, and the horsehead 9 is provided with the polished rod eye 10 and the polished rod eye 11.

The motor 1, the speed reducer 2, the reduction box 3 and the support 12 are all arranged on the base 13.

Working process or working principle:

the motor 1 drives the speed reducer 2, the speed reducer 2 drives the speed reducer 3, the speed reducer 3 drives the crank 4, the crank 4 acts to drive the connecting rod 5, the connecting rod 5 drives the S arm 6 to drive the beam 8 to act, and the beam 8 acts up and down to drive the horse head 9 to act up and down;

connecting rod 5 and crossbeam 8 are connected through S arm 6, and S arm 6 can slide and rotate on crossbeam 8, connects through S arm 6, has shortened connecting rod 5 length, and 6 middle part linking bridge 12 of S arm have shortened the arm of force, and overall balance is effectual, moves stably, simple structure, connects reliably durable.

The utility model discloses in to the direction of structure and the description of relative position relation, it is right not to constitute like the description from top to bottom all around the utility model discloses a restriction only is the description convenient.

Claims

1. A pumping unit comprises a crank (4), a cross beam (8) and a connecting rod (5), wherein the first end of the crank (4) is connected with the first end of the connecting rod (5), the bottom of the cross beam (8) is rotatably connected with a support (12), and a horse head (9) is arranged at the first end of the cross beam (8); the novel connecting rod device is characterized by further comprising an S arm (6), the middle of the S arm (6) is rotatably connected with a support (12), a sliding groove (7) is formed in the side face of the second end of the cross beam (8), the first end of the S arm (6) is rotatably connected with the sliding groove (7), and the second end of the S arm (6) is rotatably connected with the second end of the connecting rod (5).

2. The oil pumping unit of claim 1, characterized in that the sliding groove (7) is a small-opening I-shaped groove, the first end of the S-shaped arm (6) is connected with the sliding shaft (65) through a first bearing (61), the tail end of the sliding shaft (65) is provided with a pulley (66), and the pulley (66) is arranged in the I-shaped groove.

3. The oil pumping unit according to claim 1 or 2, characterized in that 2S arms (6) are symmetrically arranged on both sides of the beam (8), and the middle parts of the two S arms (6) are connected through a connecting rod (64).

4. The oil pumping unit of claim 3, characterized in that the connecting rod is arranged in the bracket in a penetrating way, and the S-shaped arm (6) is connected with the connecting rod (64) through a second bearing (62).