CN219081813U

CN219081813U - Balance weight anti-swing damper of pumping unit

Info

Publication number: CN219081813U
Application number: CN202223560597.4U
Authority: CN
Inventors: 李绍奇; 吕亚东; 李明; 马述俭; 康波; 董宏宇; 郭三如; 刘峰林
Original assignee: XINJIANG UYGUR AUTONOMOUS REGION NO 3 MACHINE TOOL WORKS
Current assignee: XINJIANG UYGUR AUTONOMOUS REGION NO 3 MACHINE TOOL WORKS
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-26
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of pumping units, in particular to a balance weight anti-swing damper of a pumping unit, which comprises a buffer box, a damping rod, a balance weight, a left guide wheel and a right guide wheel, wherein the buffer box is of a box body structure with an open upper end, the lower side of the buffer box can be fixedly arranged with a base of the pumping unit, the damping rod which is vertically arranged is arranged in the buffer box, and a buffer layer is filled in the buffer box corresponding to the outer side position of the damping rod. The utility model has reasonable and compact structure and convenient use, the vibration phenomenon of the counterweight caused by the unbalanced vibration of the pumping unit can be eliminated through the mutual friction between the counterweight and the damping rod and the buffer layer, the damping rod can counteract the acting force of wind force on the counterweight, weaken or eliminate the horizontal swinging phenomenon of the counterweight caused by wind force and vibration, prevent the horizontal swinging amplitude of the counterweight from being aggravated, realize the stable and vertical movement of the counterweight caused by friction damping, reduce the safety risk, and have the characteristics of safety, labor saving, simplicity and high efficiency.

Description

Balance weight anti-swing damper of pumping unit

Technical Field

The utility model relates to the technical field of oil pumping units, in particular to a counterweight anti-swing damper of an oil pumping unit.

Background

The oil field is developed at high speed for many years, the water content is rapidly increased, the water injection quality is poor, the well condition of the production oil well is poor, the mineralization degree of stratum water is high, corrosion, eccentric wear, ground pipeline scaling and the like are caused, the oil well rod is broken and separated in recent years, the leakage rate of a pipe pump is increased, the pump inspection maintenance is frequent, the well opening time rate is reduced, the operation occupies a large area and the like are caused, and the production management of the oil well faces a plurality of difficulties.

The balance rate of the pumping unit is an important index in daily production management, the suspension points bear asymmetric pulsating load in the working process of the pumping unit, the upstroke load is large, the downstroke load is small, so that the upstroke motor does work greatly, the downstroke motor does negative work, namely, the suspension points pull the motor rotating ports, and the pumping unit is unbalanced. The unbalance causes a series of damages to the oil pumping unit, namely, the motor bears extremely large load in the up stroke process, and the down stroke oil pumping unit brings the motor to operate to apply work instead, so that the electric energy is wasted, and the efficiency and the service life of the motor are reduced. Secondly, because the born load is very uneven, the pumping unit can vibrate violently, thereby influencing the service life of the equipment. Thirdly, the uniformity of the rotation speed of the crank can be damaged, so that the horsehead swings unevenly up and down, the normal operation of the sucker rod and the pump is influenced, and the output and the pump detection rate of an oil well are further influenced.

Because the load is very uneven, the pumping unit can generate violent vibration, and in the areas with large wind power at the western part of the ground, the counterweight can swing due to wind power and mechanical vibration, and the potential safety hazard exists in the excessive swing amplitude, so that the normal operation of the pumping unit is seriously affected.

The Chinese patent document with the publication number of CN101392639B discloses a dynamic balance pumping system which comprises a power driving unit, an intelligent control unit and a single-well pumping mechanical unit, and is characterized in that: the power driving unit adopts a speed regulating motor, the intelligent control unit consists of an intelligent control box and a sensing device, a micro-control data monitoring system and a panel operation and panel display part are arranged in the intelligent control box, the intelligent control box is connected with the motor through a cable, and a driven device in the single-well mining mechanical unit is a single-stage driven device. The counterweight device consists of a fixed counterweight body and a movable counterweight body or is an integral body; and a balancing weight anti-swing device is arranged at the side end of the balancing weight device. This patent describes that a counterweight swing preventing device is provided at a side end of a counterweight device in order to ensure that a flexible suspended load member which works in the field throughout the year is not affected by wind, but does not disclose a specific structure of the counterweight swing preventing device, and the counterweight swing preventing device does not have a function of absorbing vibration of a counterweight after preventing vibration of a pumping unit.

The Chinese patent document with the publication number of CN101539003B discloses a beam-free type efficient energy-saving pumping machine, which comprises a bearing combined wheel, a frame, a flexible piece, a load balancing weight device, a power driving and controlling unit, a power transmission and reversing mechanism and a brake device, and is characterized in that: the bearing combined wheel is formed by combining at least two wheel bodies including a bearing wheel, a balance weight wheel and a dragging wheel, the frame is formed by a frame main body and a frame auxiliary body, the frame auxiliary body comprises a wheel body mounting table, the wheel body mounting table is arranged at the top end of the frame main body, a wheel shaft support is arranged on the wheel body mounting table, the bearing combined wheel is arranged on the wheel shaft support through a wheel shaft, a flexible piece is formed by at least one type of components in ropes, belts and chains, a power driving and controlling unit comprises a motor and an electric control device, the motor drives the bearing combined wheel through a power transmission and reversing mechanism under the action of the electric control device, and the power transmission and reversing mechanism is formed by combining at least two types of devices and components in a speed reducing device, a coupling transmission device, a belt transmission device, a chain transmission device, a tooth transmission device, a movable pulley device, a motor reversing device, a crank, a connecting rod and a flexible piece. The hanging counterweight device hung on the bearing combined wheel through the flexible piece consists of a hanging counterweight bearing mechanism and a hanging counterweight body, wherein the hanging counterweight bearing mechanism is of a cavity or bracket body structure, the hanging counterweight body consists of at least one hanging counterweight body among a fixed hanging counterweight body and a movable hanging counterweight body, and the hanging counterweight bearing mechanism and the fixed hanging counterweight body are of an integrated structure or mutually independent structure; the side of the hanging balance weight bearing mechanism is provided with a hanging balance weight anti-swing device consisting of an anti-swing reed and an anti-swing bracket or an anti-swing pulley and an anti-swing pulley track, wherein the anti-swing reed or the anti-swing pulley is arranged on the hanging balance weight bearing mechanism or the fixed hanging balance weight body, and the anti-swing bracket or the anti-swing pulley track is arranged on the frame main body. The balance weight anti-swing device of the pumping unit is inconvenient to install on the existing pumping unit, and does not have the function of absorbing the vibration of the balance weight after the pumping unit is prevented from vibrating.

The existing balance weight anti-swing device is inconvenient to upgrade and reform on the pumping unit, does not have the function of absorbing the vibration of the balance weight after the vibration of the pumping unit, and solves the problems that the balance weight swings due to wind power and mechanical vibration, potential safety hazards exist when the swing amplitude is too large, and the normal operation of the pumping unit is seriously affected.

Disclosure of Invention

The utility model provides a balance weight anti-swing damper of an oil pumping unit, which overcomes the defects of the prior art, and can effectively solve the problems that the balance weight of the existing oil pumping unit swings due to wind power and mechanical vibration, potential safety hazards exist when the swing amplitude is too large, and the normal operation of the oil pumping unit is seriously influenced.

The technical scheme of the utility model is realized by the following measures: the utility model provides a beam-pumping unit counter weight anti-swing attenuator includes buffer tank, damping pole, counter weight, left leading wheel and right leading wheel, the buffer tank is upper end open-ended box structure and downside can be in the same place with beam-pumping unit base fixed mounting, install the damping pole of vertical setting in the buffer tank, the buffer tank intussuseption that corresponds damping pole outside position is filled with the buffer layer, the counter weight that the upside can link together with the beam-pumping unit is equipped with to damping pole upper portion outside cover, the interval is equipped with at least one left leading wheel about the counter weight left part upside, every left leading wheel right part outside all contacts with damping pole left part outside, counter weight right part upside is equipped with the right leading wheel with left leading wheel one-to-one, every right leading wheel left part outside all contacts with damping pole right part outside.

The following are further optimizations and/or improvements to the above-described inventive solution:

the upper side of the front part of the counterweight can be fixedly provided with a front connecting plate, the upper side of the rear part of the counterweight is fixedly provided with a rear connecting plate, at least two left guide wheels are arranged between the left part of the front connecting plate and the left part of the rear connecting plate at intervals up and down, the outer side of each left guide wheel is provided with a V-shaped left guide groove with an outward opening, the outer side of the left part of the damping rod is contacted with the inner wall of the left guide groove, at least two right guide wheels are arranged between the right part of the front connecting plate and the right part of the rear connecting plate at intervals up and down, the outer side of each right guide wheel is provided with a V-shaped right guide groove with an outward opening, and the outer side of the right part of the damping rod is contacted with the inner wall of the right guide groove.

The front connecting plate can comprise a left mounting plate and a right mounting plate which are arranged on the left side and the right side of the damping rod in a bilateral symmetry manner, and the rear connecting plate and the front connecting plate are identical in structure and are arranged in a front-back symmetry manner.

The front steel wire rope can be fixedly connected to the upper side of the front part of the counterweight corresponding to the front position of the damping rod, and the rear steel wire rope is fixedly connected to the upper side of the rear part of the counterweight corresponding to the rear position of the damping rod.

The buffer box and the counterweight can be round, the diameter of the buffer box is larger than that of the counterweight, and the thickness of the buffer layer is smaller than the depth of the buffer box.

The utility model has reasonable and compact structure and convenient use, the vibration phenomenon of the counterweight caused by the unbalanced vibration of the pumping unit can be eliminated through the mutual friction between the counterweight and the damping rod and the buffer layer, the damping rod can counteract the acting force of wind force on the counterweight, weaken or eliminate the horizontal swinging phenomenon of the counterweight caused by wind force and vibration, prevent the horizontal swinging amplitude of the counterweight from being aggravated, realize the stable and vertical movement of the counterweight caused by friction damping, reduce the safety risk, and have the characteristics of safety, labor saving, simplicity and high efficiency.

Drawings

Fig. 1 is a schematic front view of an embodiment in use.

Fig. 2 is a schematic diagram of a left-hand structure of the first embodiment in use.

Fig. 3 is a schematic perspective view of the first embodiment in use.

Fig. 4 is a schematic diagram of a front sectional structure of the first embodiment.

The codes in the drawings are respectively: 1 is an oil pumping unit, 2 is a left horsehead, 3 is a base, 4 is a buffer box, 5 is a damping rod, 6 is a buffer layer, 7 is a counterweight, 8 is a front steel wire rope, 9 is a rear steel wire rope, 10 is a left guide wheel, 11 is a right guide wheel, 12 is a left guide groove, 13 is a right guide groove, 14 is a left mounting plate, 15 is a right mounting plate, and 16 is a rear connecting plate.

Detailed Description

The present utility model is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present utility model.

In the present utility model, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.

The utility model is further described below with reference to examples and figures:

embodiment one: as shown in fig. 1, 2, 3 and 4, the balance weight anti-swing damper for the pumping unit comprises a buffer box 4, a damping rod 5, a balance weight 7, left guide wheels 10 and right guide wheels 11, wherein the buffer box 4 is of a box body structure with an open upper end, the lower side of the buffer box can be fixedly installed with a base 3 of the pumping unit 1, the damping rod 5 which is vertically arranged is installed in the buffer box 4, a buffer layer 6 is filled in the buffer box 4 corresponding to the position outside the damping rod 5, the balance weight 7 with the upper side capable of being connected with the pumping unit 1 is sleeved outside the upper part of the damping rod 5, at least one left guide wheel 10 is arranged on the upper side and the lower side of the left part of the balance weight 7 at intervals, the outer side of the right part of each left guide wheel 10 is contacted with the outer side of the left part of the damping rod 5, the outer side of the left part of each right guide wheel 11 is provided with right guide wheels 11 which are in one-to-one correspondence with the outer side of the left guide wheels 10, and the outer side of the left part of each right guide wheel 11 is contacted with the right part of the damping rod 5.

According to the demand, beam-pumping unit 1's walking beam left end is equipped with left horse head 2, and beam-pumping unit 1's walking beam right-hand member is equipped with right horse head, links together through the upper portion around locating the connecting rope in left horse head 2 left portion outsides between the counter weight 7 upside and the left horse head 2 upside, and counter weight 7 central authorities are equipped with the through-hole that is used for wearing to establish damping pole 5, and buffer layer 6 is filled by the grit of current well known and is formed, and damping pole 5 is current known technique, and the lower extreme of damping pole 5 is fixed with the ring platform of burying in buffer layer 6. In the use, vibration of the balance weight 7 can be eliminated through mutual friction between the balance weight 7 and the damping rod 5 and the buffer layer 6 due to unbalanced vibration of the oil pumping unit 1, the damping rod 5 can offset acting force of wind force on the balance weight 7, horizontal swinging phenomenon of the balance weight 7 due to wind force and vibration is weakened or eliminated, horizontal swinging amplitude of the balance weight 7 is prevented from being aggravated, stable vertical movement of the balance weight 7 due to friction damping is achieved, safety risk is reduced, the left guide wheel 10 and the right guide wheel 11 are in one-to-one correspondence, namely the left guide wheel 10 and the right guide wheel 11 are symmetrically arranged left and right, the balance weight 7 can act on the same part of the damping rod 5 in the up-down reciprocating motion process, the left guide wheel 10 and the right guide wheel 11 can be enabled to act on the same part of the damping rod 5 along with the up-down running of the balance weight 7, and the phenomenon that the damping rod 5 is stressed unevenly is prevented from being caused by the asymmetry of the left guide wheel 10 and the right guide wheel 11, and finally accidents are caused by the fact that the up-down running deviation amplitude of the balance weight 7 is excessively large. The utility model has reasonable and compact structure, convenient use, safety, labor saving, simplicity and high efficiency.

The balance weight anti-swing damper of the pumping unit can be further optimized or/and improved according to actual needs:

embodiment two: as shown in fig. 1, 2, 3 and 4, a front connecting plate is fixedly arranged on the upper side of the front part of the counterweight 7, a rear connecting plate 16 is fixedly arranged on the upper side of the rear part of the counterweight 7, at least two left guide wheels 10 are arranged between the left part of the front connecting plate and the left part of the rear connecting plate 16 at intervals up and down, V-shaped left guide grooves 12 with outward openings are arranged on the outer sides of the left guide wheels 10, the outer sides of the left parts of the damping rods 5 are contacted with the inner walls of the left guide grooves 12, at least two right guide wheels 11 are arranged between the right parts of the front connecting plate and the right parts of the rear connecting plate 16 at intervals up and down, V-shaped right guide grooves 13 with outward openings are arranged on the outer sides of the right guide wheels 11, and the outer sides of the right parts of the damping rods 5 are contacted with the inner walls of the right guide grooves 13. The present embodiment further provides a front connection plate and a rear connection plate 16, which facilitate installation and maintenance of the left guide wheel 10 and the right guide wheel 11. According to the demand, the quantity of left leading wheel 10 and right leading wheel 11 is 2, and left leading wheel 10 and right leading wheel 11 all rotate and install between preceding connecting plate and back connecting plate 16, and left guide slot 12 and right guide slot 13 also can be the arc.

Embodiment III: as shown in fig. 1, 2, 3 and 4, the front connecting plate comprises a left mounting plate 14 and a right mounting plate 15 which are symmetrically arranged on the left side and the right side of the damping rod 5, and the rear connecting plate 16 and the front connecting plate have the same structure and are symmetrically arranged front and back. The further connecting plate and back connecting plate 16 before setting up of this embodiment, connecting plate and back connecting plate 16 before being convenient for install can also guarantee that every left leading wheel 10 and right leading wheel 11 homoenergetic are laminated with damping pole 5 outside, can guarantee that counter weight 7 reciprocates in-process because of wind-force and vibration production swing effectual through damping pole 5 transmits buffer layer 6, reduces the dismouting and maintains the degree of difficulty, and preceding connecting plate and back connecting plate 16 structure are unanimous simultaneously, be convenient for make and installation.

Embodiment four: as shown in fig. 1, 2 and 3, a front steel wire rope 8 is fixedly connected to the upper side of the front part of the counterweight 7 corresponding to the front position of the damping rod 5, and a rear steel wire rope 9 is fixedly connected to the upper side of the rear part of the counterweight 7 corresponding to the rear position of the damping rod 5. The further wire rope 8 and back wire rope 9 before setting up of this embodiment can install fast on current beam-pumping unit 1, improves the popularization nature, and preceding wire rope 8 and back wire rope 9 can make the atress even after the installation of counter weight 7, prevent counter weight 7 eccentric, reduce the pressure of counter weight 7 and damping pole 5, prevent inefficacy behind the compressive deformation of damping pole 5 too big, extension damping pole 5's life. According to the demand, the upper portion of preceding wire rope 8 is around locating left horse head 2 anterior outside, and the upper portion of back wire rope 9 is around locating left horse head 2 rear portion outside.

Fifth embodiment: as shown in fig. 1, 2, 3 and 4, the buffer tank 4 and the counterweight 7 are circular, the diameter of the buffer tank 4 is larger than that of the counterweight 7, and the thickness of the buffer layer 6 is smaller than the depth of the buffer tank 4. The thickness of the buffer layer 6 in this embodiment can be adjusted according to the requirement, and can play a protective role to the counterweight 7 after the pumping unit 1 loses load, the counterweight 7 is in a circular shape, and the buffer tank 4 and the counterweight 7 are both circular so as to facilitate the manufacture of the buffer tank 4 and the counterweight 7.

The technical characteristics form the embodiment of the utility model, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.

Claims

1. The utility model provides a beam-pumping unit counter weight anti-swing attenuator, a serial communication port includes the buffer tank, the damping pole, the counter weight, left leading wheel and right leading wheel, the buffer tank is upper end open-ended box structure and downside can be in the same place with beam-pumping unit base fixed mounting, install the damping pole of vertical setting in the buffer tank, the buffer tank intussuseption of corresponding damping pole outside position is filled with the buffer layer, damping pole upper portion outside cover is equipped with the counter weight that the upside can link together with the beam-pumping unit, the interval is equipped with at least one left leading wheel about the counter weight left part upside, every left leading wheel right part outside all contacts with damping pole left part outside, counter weight right part upside is equipped with the right leading wheel with left leading wheel one-to-one, every right leading wheel left part outside all contacts with damping pole right part outside.

2. The balance weight anti-swing damper of the pumping unit according to claim 1, wherein a front connecting plate is fixedly arranged on the upper side of the front portion of the balance weight, a rear connecting plate is fixedly arranged on the upper side of the rear portion of the balance weight, at least two left guide wheels are arranged between the left portion of the front connecting plate and the left portion of the rear connecting plate at intervals up and down, V-shaped left guide grooves with outward openings are arranged on the outer sides of the left guide wheels, at least two right guide wheels are arranged between the right portion of the front connecting plate and the right portion of the rear connecting plate at intervals up and down, V-shaped right guide grooves with outward openings are arranged on the outer sides of the right guide wheels, and the outer sides of the right portions of the damping rods are in contact with the inner walls of the right guide grooves.

3. The balance weight anti-swing damper of the pumping unit according to claim 2, wherein the front connecting plate comprises a left mounting plate and a right mounting plate which are symmetrically arranged on the left side and the right side of the damping rod, and the rear connecting plate and the front connecting plate are identical in structure and are symmetrically arranged front and back.

4. The balance weight anti-swing damper for the pumping unit according to claim 1, 2 or 3, wherein a front steel wire rope is fixedly connected to the upper side of the front portion of the balance weight corresponding to the front position of the damping rod, and a rear steel wire rope is fixedly connected to the upper side of the rear portion of the balance weight corresponding to the rear position of the damping rod.

5. The balance weight anti-swing damper for the pumping unit according to claim 1, 2 or 3, wherein the buffer tank and the balance weight are circular, the diameter of the buffer tank is larger than that of the balance weight, and the thickness of the buffer layer is smaller than the depth of the buffer tank.

6. The balance weight anti-swing damper of the pumping unit according to claim 4, wherein the buffer tank and the balance weight are circular, the diameter of the buffer tank is larger than that of the balance weight, and the thickness of the buffer layer is smaller than the depth of the buffer tank.