CN222315817U - Belt anti-jump correction device of power mechanism of oil pumping machine - Google Patents

Abstract

The utility model discloses a belt anti-jumping correction device for a pumping unit power mechanism, comprising a small motor pulley installed at the output end of the motor and a large pulley of the reduction box installed at the input end of the reduction box, the small motor pulley is connected to the large pulley of the reduction box through the pumping unit belt, a radial support plate extending radially along the large pulley of the reduction box is fixed on the reduction box, an L-shaped fixing plate is fixed on the side of the radial support plate facing the large pulley of the reduction box, the horizontal edge of the L-shaped fixing plate extends along the width direction of the large pulley of the reduction box, and a U-shaped limit block is fixed on the inner wall of the horizontal edge of the L-shaped fixing plate, a wheel edge somewhere within the belt wrap angle range of the large pulley of the reduction box is embedded in the opening of the U-shaped limit block and a gap is left with the inner wall of the U-shaped limit block. The device can prevent the belt from jumping when the pumping unit is started on-site or remotely, is convenient for "four-point one-line" calibration, and can stop automatically safely when problems occur.

Description

Belt anti-jump correction device of power mechanism of oil pumping machine

Technical Field

The utility model relates to an oil pumping machine, in particular to a belt anti-jump correction device for a power mechanism of an oil pumping machine, and belongs to the technical field of safety mechanisms of oil pumping machines.

Background

The beam pumping unit is the most core equipment in the oil well site, the whole body of the beam pumping unit is like a balance, the middle part of the beam is hinged to the top end of the radial support plate through a middle bearing, and the beam is reciprocated at a certain angle by taking the middle bearing as a fulcrum in the running process. The head end of the walking beam is connected with a horsehead, the horsehead bears the oil pumping load, a tail shaft bearing seat is fixed below the tail end of the walking beam, a cross beam is fixed below the tail shaft bearing seat, the axis of the cross beam is perpendicular to the axis of the walking beam, the front end and the rear end of the cross beam are respectively hinged with connecting rods, the lower ends of the two connecting rods are respectively provided with a connecting rod lifting ring, and the two connecting rod lifting rings are respectively connected with a crank mechanism through crank pins and are provided with balance weight loads. The motor and the pumping unit reducer are fixed on the driving base together, a small belt pulley at the output end of the motor is connected with a large belt pulley at the input end of the pumping unit reducer through a pumping unit belt, and the root of the crank is fixed at the output end of the pumping unit reducer.

When the oil pumping machine is in operation, the motor drives the oil pumping machine gearbox to operate through the oil pumping machine belt, the output end of the oil pumping machine gearbox drives the crank to rotate, the free end of the crank pulls the lower ends of the two connecting rods to do circular motion, the upper ends of the two connecting rods drive the tail ends of the walking beams to swing up and down through the cross beams, the horseheads at the head ends of the walking beams also do up and down motion, and the horseheads drive the plungers of the deep well pumps in the well to do up and down motion through the rope braids, the polished rods and the sucker rods, so that crude oil in the well is continuously pumped out of the well.

The oil pumping machine belt is a key component of the whole oil well production system, the installation standard requires that a line is led through the centers of the large pulley of the reduction gearbox and the small pulley of the motor, the line intersects with the edges of the large pulley of the reduction gearbox and the small pulley of the motor to form four points, the four points are required to be on a straight line, commonly called as four points and one line, and whether the belt reaches the four points and one line of the installation standard is one of the key points for guaranteeing the oil well production time rate and reducing the production cost.

When the existing oilfield utilizes the beam pumping unit to carry out exploitation, the belt works for a long time in all-weather environment, because ageing and loosening are caused by long-time operation, the belt of the large belt pulley of the input shaft of the reduction gearbox easily jumps to a groove in the daily start-stop process, and particularly the belt is very easy to occur under the condition of no four points and one line. After the oil field information is automatically applied, the oil pumping unit can not utilize the inertial force of a crank, and the oil pumping unit with fast stroke frequency can be overlapped, so that the belt jump amplitude is large during remote pumping, and the belt can jump out of the belt pulley groove more easily. If the continuous operation is very easy to cause belt wheel detachment or damage, the motor idles after the pumping unit stops pumping, the motor needs to be processed on site, the workload of operators is increased, certain difficulty and danger exist when the jigger enters the groove, and if the belt needs to be replaced, the time and the labor are wasted, and the production time rate of the oil well is influenced.

The utility model discloses a belt slip alarm device of an oil pumping unit, which comprises a large belt pulley rotating speed signal acquisition device arranged at the rotating shaft position of a large belt pulley of the oil pumping unit and also comprises a field control cabinet, wherein the field control cabinet is electrically connected with a motor of the oil pumping unit, the large belt pulley rotating speed signal acquisition device is provided with a wireless signal transmission mechanism, and the large belt pulley rotating speed signal acquisition device is electrically connected with the field control cabinet through wireless signals. The device utilizes the rotational speed collector on the big belt pulley, presets good rotational speed value, reports to the police when being less than the setting value, but has the limitation in the use to the belt does not have emergent self-stopping function after wearing off.

The utility model patent of China with the bulletin number of CN213279389U discloses a centering and positioning device for a motor belt of an oil pumping unit, wherein a T-shaped fixing plate, a sliding bar, a front tray and a rear tray are respectively arranged on a motor fixing seat in the centering and positioning device, a T-shaped sliding groove is arranged at the bottom end of the T-shaped fixing plate, a bottom plate is fixedly connected with the bottom end of the motor fixing seat, a T-shaped sliding block matched with the T-shaped sliding groove is arranged on the bottom plate, the T-shaped sliding groove and the T-shaped sliding block are arranged to facilitate the adjustment of the transverse position of the T-shaped fixing plate, the front tray and the rear tray are in sliding connection with the sliding bar, the motor is adjusted in front and back position by adjusting the matched rotation of a screw rod and a screw nut, the positioning transmitting device and the positioning receiving device are respectively provided with the side surfaces of a small belt pulley and a large belt pulley, and whether the installation requirements of a four-point line connecting the belt between a speed reducer of the oil pumping unit and the motor reach the standard or not can be detected rapidly through the positioning transmitting device and the positioning receiving device. The device utilizes the laser transmitting end and the receiving end to measure four points and one line, and the positioning device for fixing the motor can only be used by one machine, cannot be applied to multiple wells and has high cost.

At present, no means for preventing the belt from jumping from the groove is provided, the four-point one-line belt can be applied to multiple wells, the cost is saved, the pumping unit can stop automatically in time when the pumping unit cannot normally operate, the electric power waste is reduced, and the expansion of faults is avoided.

Disclosure of utility model

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.

The present utility model has been made in view of the above and/or problems occurring in the prior art.

The utility model aims to overcome the problems in the prior art, and provides the belt jump-preventing correction device for the power mechanism of the oil pumping unit, which can avoid belt jump when the oil pumping unit is started on site or remotely, is convenient for four-point one-line calibration, and can safely stop automatically under the condition of the occurrence of the problems.

In order to solve the technical problems, the belt anti-jump correction device of the pumping unit power mechanism comprises a motor small belt pulley arranged at the output end of a motor and a reduction box large belt pulley arranged at the input end of a reduction box, wherein the motor small belt pulley is connected with the reduction box large belt pulley through a pumping unit belt, a radial support plate extending along the radial direction of the reduction box large belt pulley is fixed on the reduction box, an L-shaped fixing plate is fixed on one side of the radial support plate facing the reduction box large belt pulley, the transverse edge of the L-shaped fixing plate extends along the width direction of the reduction box large belt pulley, a U-shaped limiting block is fixed on the inner wall of the transverse edge of the L-shaped fixing plate, and a rim at a certain position in the belt wrap angle range of the reduction box large belt pulley is embedded in an opening of the U-shaped limiting block and is kept in a gap with the inner wall of the U-shaped limiting block.

As an improvement of the utility model, a scale disk is magnetically attracted on the outer end surface of the motor small belt pulley, an iron pile head is fixed on the outer edge of the transverse edge of the L-shaped fixing plate, and a laser transmitter for transmitting laser to the scale disk is magnetically attracted on the iron pile head.

As a further improvement of the utility model, the dial is round, and the end face of one side is provided with a target ring scale taking the center point of the dial as the center of a circle.

As a further improvement of the utility model, the circumference of the dial is connected with the free end of the dial support rod into a whole, and the root of the dial support rod is connected with the dial magnetic attraction seat.

As a further improvement of the utility model, two support plate fixing holes are symmetrically arranged at the lower part of the radial support plate, and support screws respectively penetrate through the support plate fixing holes to fix the radial support plate on the bearing cover of the reduction gearbox.

As a further improvement of the utility model, four fixing plate studs in rectangular distribution are welded on the outer wall of the vertical edge of the L-shaped fixing plate, the radial support plate is provided with radial long grooves along the length direction of the fixing plate studs, and each fixing plate stud respectively passes through the radial long groove on the radial support plate to fix the L-shaped fixing plate on the radial support plate.

As a further improvement of the utility model, four limit block studs in rectangular distribution are welded on the top of the bottom wall of the U-shaped limit block, the transverse edge of the L-shaped fixed plate is provided with transverse long grooves extending along the thickness direction of the large belt pulley of the reduction gearbox, and each limit block stud respectively penetrates through the corresponding transverse long groove to fix the U-shaped limit block below the transverse edge of the L-shaped fixed plate.

As a further improvement of the utility model, a pulley monitor for monitoring whether the large pulley of the reduction gearbox stops rotating is arranged at the lower part of the radial support plate.

As a further improvement of the utility model, a spoke of the large belt pulley of the reduction box is stuck with a reflecting sheet which is convenient for detection of a belt pulley monitor.

As a further improvement of the utility model, one spoke of the large pulley of the reduction box is coated with reflective paint spots which are convenient for detection by a pulley monitor.

As a further improvement of the utility model, the pulley monitor sends a stop signal to the control system when the large pulley of the reduction gearbox stops rotating or is below a set rotational speed.

Compared with the prior art, the utility model has the beneficial effects that 1, the phenomenon that the belt of the pumping unit jumps out of the wheel groove after being used is reduced, and the operation time rate of an oil well is improved;

2. Belt four of pumping unit after use the point-to-line calibration specification, the four-point and one-line precision of the belt is improved;

3. belt jump-out wheel groove of pumping unit after use the rear motor can stop running in time, eliminating potential safety hazard.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, the drawings being provided for reference and illustration only and not for limiting the present utility model. Wherein:

FIG. 1 is a front view of the belt anti-run-out correction device for the pumping unit power mechanism in the use state of the device;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a front view of a laser emitting area according to the present utility model;

FIG. 5 is a perspective view of FIG. 4;

FIG. 6 is a perspective view of a radial bracket plate of the present utility model;

FIG. 7 is a perspective view of an L-shaped fixing plate according to the present utility model;

FIG. 8 is a perspective view of a U-shaped stopper according to the present utility model;

FIG. 9 is a perspective view of a laser transmitter according to the present utility model;

FIG. 10 is a perspective view of a reticle of the present utility model;

In the figure, a radial support plate, a support plate fixing hole, a radial long groove, a support screw, a 3L-shaped fixing plate, a fixing plate stud, a transverse long groove, a 4 iron pile head, a 5U-shaped limiting block, a 5a limiting block stud, a 6 laser transmitter, a 7 scale disc, a 7a target ring scale, a 7b scale disc support rod, a 7c scale disc magnetic attraction seat, a 8 pulley monitor, a 9 motor, a 10 motor small pulley, a 11 pumping unit belt, a 12 reduction gearbox and a 13 reduction gearbox large pulley.

Detailed Description

In the following description of the present utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not mean that the device must have a specific orientation.

The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in fig. 1 to 3, the oil pumping machine power mechanism comprises a motor 9 and a reduction gearbox 12, wherein a motor small belt pulley 10 is arranged at the output shaft end of the motor 9, a reduction gearbox large belt pulley 13 is arranged at the input shaft end of the reduction gearbox 12, and the motor small belt pulley 10 is in transmission connection with the reduction gearbox large belt pulley 13 through an oil pumping machine belt 11. The motor 9 drives the big belt pulley 13 of the reduction box to rotate through the small belt pulley 10 of the motor and the belt 11 of the pumping unit, the big belt pulley 13 of the reduction box drives the input shaft of the reduction box 12 to rotate, the output shaft of the reduction box 12 drives the crank to rotate, and the crank drives the walking beam to swing through the connecting rod.

When the pumping unit belt 11 is worn or broken, the motor 9 needs to be shifted during replacement, and after a new belt is replaced, the belt needs to be corrected again. After the position of the motor 9 is adjusted each time, whether the motor is in line with four points or one line is usually observed through a stay wire mode, and due to the trouble, in actual work, operators often observe the motor only through a visual inspection mode, so that certain errors are brought.

As shown in fig. 1 to 10, the belt anti-jump calibration device of the oil pumping machine power mechanism comprises a radial support plate 1, support screws 2, an L-shaped fixing plate 3, a pile head 4, a U-shaped limiting block 5, a laser emitter 6 and a standard disc 7, wherein the radial support plate 1 extending radially along a large pulley 13 of the speed reduction box is fixed on the speed reduction box 12, the L-shaped fixing plate 3 is fixed on one side of the radial support plate 1 facing the large pulley 13 of the speed reduction box, the transverse edge of the L-shaped fixing plate 3 extends along the width direction of the large pulley 13 of the speed reduction box, the U-shaped limiting block 5 is fixed on the inner wall of the transverse edge of the L-shaped fixing plate 3, a rim at a position within the belt wrap angle range of the large pulley 13 of the speed reduction box is embedded in an opening of the U-shaped limiting block 5, a gap is reserved between the outer edge of the belt 11 of the oil pumping machine and the inner side of the bottom wall of the U-shaped limiting block 5, and a gap is reserved between two sides of the large pulley 13 of the speed reduction box and two side inner walls of the U-shaped limiting block 5. In the normal operation process, the large belt pulley 13 of the reduction box and the belt 11 of the pumping unit are not contacted with the U-shaped limiting block 5. Even if the pumping unit belt 11 fluctuates to a certain extent, the pumping unit belt is still limited in the belt groove to avoid the occurrence of groove disengagement even if the pumping unit belt contacts with the inner side of the U-shaped limiting block 5 to a certain extent.

In order to adapt to the diameters of large pulleys 13 of different reduction boxes and to facilitate the displacement when the belt is replaced, the radial support plate 1 is provided with a radial long groove 1b extending along the length direction. Four fixing plate studs distributed in a rectangular shape are welded on the outer wall of the vertical edge of the L-shaped fixing plate 3, holes can be drilled on the vertical edge of the L-shaped fixing plate 3, the roots of the fixing plate studs are inserted into the holes, welding is conducted on the inner wall of the non-matching fixing plate, and precise fit between the outer wall of the vertical edge of the L-shaped fixing plate 3 and the radial support plate 1 is guaranteed.

Each fixing plate stud penetrates through a radial long groove 1b on the radial support plate 1 and can move up and down to be adjusted to a proper height, and then nuts are screwed to fix the L-shaped fixing plate 3 on the radial support plate 1.

The transverse side of the L-shaped fixing plate 3 is provided with a transverse long groove which extends along the thickness direction of the large pulley 13 of the reduction gearbox. Four limit block studs 5a which are rectangular in distribution are welded at the top of the bottom wall of the U-shaped limit block 5, and each limit block stud 5a penetrates through the corresponding transverse long groove to fix the U-shaped limit block 5 below the transverse edge of the L-shaped fixing plate 3. The position of the U-shaped limiting block 5 is transversely adjusted through the transverse long groove so as to adapt to the width position of the large belt pulley.

Two support plate fixing holes 1a are symmetrically formed in the lower portion of the radial support plate 1, and the distance between the two support plate fixing holes 1a is equal to the distance between two adjacent screws of the bearing cover of the reduction gearbox. After the whole device is assembled, the radial support plates 1 are fixed on the bearing cover of the reduction gearbox by using the support screws 2 to penetrate through the support plate fixing holes 1a respectively, and the screw holes are not required to be additionally machined, so that the device is very convenient and quick.

The front end of the L-shaped fixing plate 3 is welded with a pile head 4 for magnetically attracting the laser emitter 6, the outer end face of the motor small belt pulley 10 is magnetically attracted with a scale 7, the scale 7 is circular, and a plurality of target ring scales 7a are arranged on the scale 7 by taking a central point as a circle center. The circumference of the dial 7 is connected with the free end of the dial support rod 7b into a whole, and the root of the dial support rod 7b is connected with a dial magnetic attraction seat 7c.

After the radial support plate 1, the L-shaped fixing plate 3 and the U-shaped limiting block 5 are installed for the first time, the laser transmitter 6 is magnetically attracted on the pile head 4, the laser transmitter 6 emits laser beams which are magnetically attracted to the scale 7 on the motor small belt pulley 10, and the light spots are ensured to fall at the center of the scale 7. And then the laser transmitter 6 and the dial 7 are taken down, and the pumping unit is put into normal operation.

The beam-pumping unit work is longer, when needs change the belt, need loosen the mounting bolt etc. of motor 9, when beam-pumping unit belt 11 is changed the back and is tensioning again, only need inhale laser emitter 6 again on stake head 4 magnetism, inhale the outer terminal surface at motor belt pulley 10 with the mark dish 7 magnetism, the light beam of laser emitter 6 falls on mark dish 7, can judge "four points one line" error value very directly perceivedly through target ring scale 7a, the calibration of "four points one line" after the convenient belt of changing, extension beam-pumping unit belt 11's life.

The radial support plate 1 is also provided with a pulley monitor 8 for monitoring whether the large pulley 13 of the reduction gearbox stops rotating, the pulley monitor 8 can be replaced by a velometer, one spoke of the large pulley 13 of the reduction gearbox is stuck with a reflective sheet which is convenient for the pulley monitor 8 to detect, or one spoke of the large pulley 13 of the reduction gearbox is coated with a reflective paint spot which is convenient for the pulley monitor 8 to detect, so that the velometer can accurately measure the speed, or the pulley monitor 8 can monitor whether the large pulley 13 of the reduction gearbox stops rotating. When the pumping unit belt 11 is jumped, taken off the wheel or broken, the large pulley 13 of the reduction gearbox stops rotating, the pulley monitor 8 sends a stopping signal to the control system, and the motor 9 stops running. Or when the speed measuring instrument measures that the rotating speed of the large belt pulley 13 of the reduction gearbox is lower than a set value, the belt 11 of the pumping unit is indicated to skid, the control system also controls the motor 9 to be powered off in time and stop automatically, and the whole device is convenient to adjust and detach.

The device is tried in wells such as true 11-5 wells, true 35-26 wells and the like, the phenomenon that the belt jumps out of the belt pulley groove does not occur, the correction qualification rate of the motor is 100% at four points in one line, and the field use effect is very good.

The foregoing description of the preferred embodiments of the present utility model illustrates and describes the basic principles, main features and advantages of the present utility model, and is not intended to limit the scope of the present utility model, as it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments. In addition to the embodiments described above, other embodiments of the utility model are possible without departing from the spirit and scope of the utility model. The utility model also has various changes and improvements, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the protection scope of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof. The technical features of the present utility model that are not described may be implemented by or using the prior art, and are not described herein.

Claims (10)

1. The utility model provides a pumping unit power unit belt prevents jumping groove correcting unit, includes the motor belt pulley of installing at the motor output and installs the big belt pulley of reducing gear box input, the motor belt pulley passes through the pumping unit belt and links to each other with the big belt pulley of reducing gear box, its characterized in that is fixed with the radial mounting plate that radially extends along the big belt pulley of reducing gear box on the reducing gear box, one side that radial mounting plate faces the big belt pulley of reducing gear box is fixed with L shape fixed plate, the width direction that the horizontal border of L shape fixed plate extends, and the horizontal limit inner wall of L shape fixed plate is fixed with the U-shaped stopper, somewhere rim in the belt wrap angle scope of the big belt pulley of reducing gear box inlay in the opening of U-shaped stopper and with the inner wall of U-shaped stopper leave the clearance.

2. The device for correcting the jump-preventing of the belt of the pumping unit power mechanism of claim 1, wherein a marker disc is magnetically attracted to the outer end surface of the motor small belt pulley, a pile head is fixed to the outer edge of the transverse edge of the L-shaped fixing plate, and a laser transmitter for transmitting laser to the marker disc is magnetically attracted to the pile head.

3. The belt jump preventing correcting device for the pumping unit power mechanism of claim 2, wherein the scale plate is circular, and a target ring scale taking the center point of the scale plate as the center of a circle is arranged on one side end surface of the scale plate.

4. The belt jump preventing correcting device for the pumping unit power mechanism of claim 3, wherein the circumference of the dial is connected with the free end of the dial support rod into a whole, and the root of the dial support rod is connected with a dial magnetic attraction seat.

5. The belt anti-jump correction device for the oil pumping machine power mechanism of claim 1, wherein two support plate fixing holes are symmetrically formed in the lower portion of the radial support plate, and support screws penetrate through the support plate fixing holes to fix the radial support plate on a bearing cover of a reduction gearbox.

6. The device for correcting the anti-jump groove of the belt of the oil pumping machine power mechanism according to claim 1, wherein four fixing plate studs in rectangular distribution are welded on the outer wall of the vertical edge of the L-shaped fixing plate, radial long grooves along the length direction of the fixing plate are formed in the radial support plate, and each fixing plate stud penetrates through the radial long groove in the radial support plate to fix the L-shaped fixing plate on the radial support plate.

7. The device for correcting the anti-jump groove of the belt of the power mechanism of the oil pumping machine according to claim 1, wherein four limit block studs in rectangular distribution are welded at the top of the bottom wall of the U-shaped limit block, transverse long grooves extending along the thickness direction of the large belt pulley of the reduction gearbox are formed in the transverse edge of the L-shaped fixing plate, and each limit block stud penetrates through the corresponding transverse long groove to fix the U-shaped limit block below the transverse edge of the L-shaped fixing plate.

8. The apparatus of claim 1, wherein a pulley monitor for monitoring whether the large pulley of the reduction gearbox stops rotating is installed at the lower part of the radial support plate.

9. The apparatus of claim 8, wherein a reflective patch for facilitating detection by a pulley monitor is attached to a spoke of the large pulley of the reduction box.

10. The apparatus of claim 8, wherein a spoke of the large pulley of the reduction box is coated with reflective paint spots for detection by a pulley monitor.