CN221240210U - Mounting structure of motor and speed reducer for pumping unit - Google Patents

Abstract

The utility model relates to a mounting structure of a motor and a speed reducer for an oil pumping unit, which comprises the motor and the speed reducer, wherein a middle shaft transition cover plate and an input shaft transition cover plate are fixed on a speed reducer shell, the input shaft transition cover plate exceeds the edge of the speed reducer shell, and the exceeding part is fixed with the shell of the motor through bolts; the motor is also fixed with a connecting plate exceeding the edge of the motor shell, and the connecting plate and the intermediate shaft transition cover plate are also fixed through bolts. The utility model utilizes the intermediate shaft transition cover plate and the input shaft transition cover plate, so that the motor can be conveniently, stably and firmly installed through bolts on the premise of not moving fire on site, and the corresponding size and precision are ensured through machining holes on the intermediate shaft transition cover plate and the input shaft transition cover plate, the motor height and angle are not required to be adjusted for a long time during installation, the requirement on installation personnel is reduced, and the motor is convenient to assemble and disassemble rapidly.

Description

Mounting structure of motor and speed reducer for pumping unit

Technical Field

The utility model belongs to the field of petroleum lifting machinery, and particularly relates to a mounting structure of a motor and a speed reducer for an oil pumping unit.

Background

At present, for the beam pumping unit which is common in oil pumping equipment of an oil field, the beam pumping unit has been applied for over a hundred years worldwide, and the beam pumping unit has the following main components of a driving structure although being durable in skin: the common motor, the belt pulley and the speed reducer are used for reducing the speed and finally output to the crankshaft, but the following defects also exist: the belt is easy to break and slip, the input shaft of the speed reducer is easy to be installed improperly to cause bending and the like, and the belt pulley transmission part is an exposed rotating part, so that the safety is poor. In recent years, a more energy-saving and safe semi-direct-drive beam pumping unit is realized, a permanent magnet motor of a common motor and a belt pulley speed reducing mechanism is removed to replace the permanent magnet motor, but problems also appear, and although the problems of a belt pulley of a previous structure are solved, the problems in the installation process of the permanent magnet motor and an input shaft of a speed reducer exist, and a semi-direct-drive device with a new process structure is urgently needed.

The existing speed reducer and motor in the market basically adopt on-site fire operation, a mounting base of the cake motor is welded on a base of the original speed reducer, then the cake motor is fixed on the base, firstly, potential safety hazards exist in the fire operation due to the fact that natural gas possibly exists around an oil pumping well on site, secondly, the welded base is not subjected to heat treatment, and therefore the coaxiality of a motor shaft and an input shaft of the speed reducer is poorer and worse due to the fact that the deformation of the welded base is larger after long-time operation, finally, the mounting size is difficult to grasp through the welding base, and the coaxiality of the motor shaft and the input shaft of the speed reducer can be guaranteed only through adjustment of a large amount of later time, so that the mounting cost is increased, and higher technical requirements are provided for installers.

Disclosure of utility model

In order to solve the technical problems, the utility model aims to provide a mounting structure of a motor and a speed reducer for an oil pumping unit, which can reduce the mounting difficulty, improve the operation safety and ensure the long-time stable operation of equipment.

In order to achieve the above object, the present utility model adopts the following technical scheme:

The motor and speed reducer mounting structure for the oil pumping unit comprises a motor and a speed reducer, wherein a middle shaft transition cover plate and an input shaft transition cover plate are fixed on a speed reducer shell, the input shaft transition cover plate exceeds the edge of the speed reducer shell, and the exceeding part is fixed with the shell of the motor through bolts; the motor is also fixed with a connecting plate exceeding the edge of the motor shell, and the connecting plate and the intermediate shaft transition cover plate are also fixed through bolts.

As a preferable scheme: the upper and lower parts of the connecting plate are respectively fixed with an upper reinforcing mounting seat and a lower reinforcing mounting seat, an output shaft lug is further arranged on the speed reducer shell, and the upper reinforcing mounting seat and the lower reinforcing mounting seat are respectively fixed with the upper and lower surfaces of the output shaft lug through bolts.

As a preferable scheme: the upper reinforcing mounting seat and the lower reinforcing mounting seat are formed by two plates which are welded perpendicularly.

As a preferable scheme: the input shaft transition cover plate comprises a square plate and a trapezoid plate which are integrally formed, one side of the square plate is shared with the upper bottom of the trapezoid plate, and the trapezoid plate exceeds the upper side and the lower side of the square plate to be positioned outside the speed reducer and is fastened with the motor through bolts; the square plate is fixed with the speed reducer through bolts, and a through hole is formed in the middle of the square plate.

As a preferable scheme: the intermediate shaft transition cover plate comprises a regular octagonal connecting plate sheet and two triangular connecting lugs extending from two sides of the connecting plate sheet, and the upper connecting lug and the lower connecting lug are fastened with a connecting plate of the motor through bolts; the connecting plate is fixed with the speed reducer through bolts.

As a preferable scheme: and a photoelectric sensor for detecting the running angle of the crank is also fixed on the motor through a bracket.

As a preferable scheme: the motor is flat discoid, rings and junction boxes are further arranged on the side face of the motor.

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

The utility model utilizes the intermediate shaft transition cover plate and the input shaft transition cover plate, so that the motor can be conveniently, stably and firmly installed through bolts on the premise of not moving fire on site, and the corresponding size and precision are ensured through machining holes on the intermediate shaft transition cover plate and the input shaft transition cover plate, the motor height and angle are not required to be adjusted for a long time during installation, the requirement on installation personnel is reduced, and the motor is convenient to assemble and disassemble rapidly.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.

Fig. 1 is a schematic view (front side) of a fixed structure of a motor and a speed reducer of the present utility model;

Fig. 2 is a schematic view (back side) of a fixing structure of a motor and a speed reducer of the present utility model;

FIG. 3 is a schematic view of the front side of the motor of the present utility model;

FIG. 4 is a schematic view of a fixing structure of the motor and intermediate shaft transition cover plate and input shaft transition cover plate of the present utility model;

fig. 5 is a schematic structural view of the speed reducer of the present utility model.

The reference numerals are: 1. a motor; 11. an upper reinforcing mounting seat; 12. a lower reinforcing mounting seat; 13. a hanging ring; 14. a junction box; 15. a bracket; 16. a photoelectric sensor; 2. a speed reducer; 21. intermediate shaft transition cover plate; 22. an input shaft transition cover plate; 23. and the output shaft is provided with a lug.

Detailed Description

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. 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 application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

Furthermore, in the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

As shown in fig. 1 to 5, the installation structure of a motor and a speed reducer for an oil pumping unit comprises a motor 1 and the speed reducer 2, wherein an input shaft, an intermediate shaft and an output shaft are arranged in the speed reducer 2, a stator and a rotor are arranged in the motor 1, an intermediate shaft transition cover plate 21 and an input shaft transition cover plate 22 are fixedly arranged on a shell of the speed reducer 2, the input shaft transition cover plate 22 exceeds the edge of the shell of the speed reducer 2, and the excess part is fixed with the shell of the motor 1 through bolts; the motor 1 is also fixedly provided with a connecting plate exceeding the edge of the motor 1 shell, the connecting plate and the intermediate shaft transition cover plate 21 are also fixed through bolts, and the input shaft of the speed reducer 2 is movably connected with the rotor of the motor 1 through a coupler.

The input shaft transition cover plate 21 comprises a square plate and a trapezoid plate which are integrally formed, one side of the square plate is shared with the upper bottom of the trapezoid plate, and the trapezoid plate exceeds the upper side and the lower side of the square plate to be positioned outside the speed reducer and is fastened with the motor through bolts; the square plate is fixed with the speed reducer 2 through bolts, and a through hole is formed in the middle of the square plate.

The intermediate shaft transition cover plate 22 comprises a regular octagonal connecting plate sheet and two triangular connecting lugs extending from two sides of the connecting plate sheet, and the upper connecting lug and the lower connecting lug are fastened with a connecting plate of the motor through bolts; the connecting plate is fixed with the speed reducer through bolts.

The intermediate shaft transition cover plate 21 and the input shaft transition cover plate 22 of the speed reducer adopt nonstandard transition cover plates, bearing gland fixing holes of input shafts and intermediate shafts with different sizes are processed in a matched mode for different speed reducers, the nonstandard transition cover plates are used for fixing the nonstandard transition cover plates on a speed reducer shell, meanwhile, through holes are formed in the input shaft transition cover plate 22 for fixing screws relative to the back face of the motor end cover, and threaded holes are formed in the intermediate shaft transition cover plate 21 for fixing the screws relative to the front face of the motor end cover.

The upper and lower parts of the connecting plate are respectively fixed with an upper reinforcing mounting seat 11 and a lower reinforcing mounting seat 12, and the upper reinforcing mounting seat 11 and the lower reinforcing mounting seat 12 are respectively formed by two plates which are welded vertically. The speed reducer 2 is also provided with an output shaft lug 23 on the shell, and the upper reinforcing mounting seat 11 and the lower reinforcing mounting seat 12 are respectively fixed with the upper surface and the lower surface of the output shaft lug 23 through bolts. The structure utilizes the screw fixed by the upper cover and the base of the conventional oil pumping machine speed reducer to install the upper reinforcing installation seat 11 and the lower reinforcing installation seat 12, so that the motor and the speed reducer are fixed by the screw in the horizontal direction and the vertical direction, the fixing strength of the motor is further improved, and the reliability of long-term use is ensured.

The motor 1 is flat discoid, the output shaft of speed reducer 2 is fixed with the crank, still be fixed with the photoelectric sensor 16 that is used for detecting crank operation angle on the motor 1 through support 15.

The motor 1 adopts a permanent magnet cake motor, is provided with a frequency converter for driving, and can realize an intelligent oil extraction process by utilizing the frequency converter and the photoelectric sensor 16, namely, the up-and-down running speed of the sucker rod is changed to achieve the effects of quick pumping and slow discharging so as to improve the pumping efficiency and reduce the leakage rate of the pump, and the photoelectric sensor 16 added on the motor is used for calibrating each running process.

The side of the motor 1 is also provided with a hanging ring 13 and a junction box 14. The junction box is arranged on the side surface, so that the operations such as wiring, maintenance and the like are facilitated; and the arrangement of the hanging ring makes the motor hanging more convenient.

The semi-direct-drive motor is directly installed without damage from a delivery state to the site, does not need fire operation, and comprises the following specific installation steps:

1. Firstly, removing original bearing covers of an input shaft and an intermediate shaft of a speed reducer;

2. Mounting a positioning sleeve to a shaft hole of an input shaft (an input shaft transition cover plate 21 for positioning the input shaft, and coaxiality of a positioning motor);

3. The intermediate shaft transition cover plate 22 and the input shaft transition cover plate 21 are installed in place (by utilizing the fixed screw holes and the end faces of the original reducer bearing gland);

4. And lifting the motor by using a lifting ring, slowly aligning an inner hole of the motor with a positioning shaft sleeve, and fixing the speed reducer and the motor from the front side and the back side of the motor respectively by using screws.

5. The horizontal bottom plates of the upper and lower reinforcing mounts 11 and 12 are screwed to the output shaft bosses 23 of the speed reducer, and the vertical plates of the upper and lower reinforcing mounts 11 and 12 are fixedly mounted to the motor.

6. The front and rear positions of the photoelectric sensor 16 on the motor are adjusted so that the position of the photoelectric sensor can just sense the crank of the pumping unit and the crank rotation is not interfered.

In summary, the present application has the following obvious advantages: 1. the motor fixing mode is changed, so that the on-site nondestructive installation is realized, and the fire operation is not needed. 2. The diameter and the end face of the bearing holes of the input shaft and the intermediate shaft of the speed reducer are utilized to reinstall a new intermediate shaft transition cover plate 21 and an input shaft transition cover plate 22 for fixing the motor, and the motor is jointly fixed by adding an upper reinforcing mounting seat and a lower reinforcing mounting seat, so that sufficient mounting strength is ensured. 3. The photoelectric sensor is increased to detect the crank operation angle so as to calibrate the actual height of the sucker rod and display intelligent oil extraction.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model, and any simple modification, equivalent variation and modification of the above embodiments in light of the technical principles of the utility model may be made within the scope of the present utility model.

Claims (7)

1. The utility model provides a motor and mounting structure of reduction gear for beam-pumping unit, includes motor (1) and reduction gear (2), its characterized in that: an intermediate shaft transition cover plate (22) and an input shaft transition cover plate (21) are fixed on the shell of the speed reducer (2), the input shaft transition cover plate (21) exceeds the edge of the shell of the speed reducer (2), and the exceeding part is fixed with the shell of the motor (1) through bolts; the motor (1) is also fixedly provided with a connecting plate exceeding the edge of the shell of the motor (1), and the connecting plate and the intermediate shaft transition cover plate (22) are also fixed through bolts.

2. The mounting structure of a motor and a decelerator for a pumping unit according to claim 1, wherein: the upper and lower parts of the connecting plate are respectively fixed with an upper reinforcing mounting seat (11) and a lower reinforcing mounting seat (12), an output shaft lug (23) is further arranged on the shell of the speed reducer (2), and the upper reinforcing mounting seat (11) and the lower reinforcing mounting seat (12) are respectively fixed with the upper and lower surfaces of the output shaft lug (23) through bolts.

3. The mounting structure of a motor and a decelerator for a pumping unit according to claim 2, wherein: the upper reinforcing mounting seat (11) and the lower reinforcing mounting seat (12) are formed by two plates which are welded perpendicularly.

4. The mounting structure of a motor and a decelerator for a pumping unit according to claim 1, wherein: the input shaft transition cover plate (21) comprises a square plate and a trapezoid plate which are integrally formed, one side of the square plate is shared with the upper bottom of the trapezoid plate, and the trapezoid plate exceeds the upper side and the lower side of the square plate to be positioned outside the speed reducer and is fastened with the motor through bolts; the square plate is fixed with the speed reducer (2) through bolts, and a through hole is formed in the middle of the square plate.

5. The mounting structure of a motor and a decelerator for a pumping unit according to claim 1, wherein: the intermediate shaft transition cover plate (22) comprises a regular octagonal connecting plate sheet and two triangular connecting lugs extending from two sides of the connecting plate sheet, and the upper connecting lug and the lower connecting lug are fastened with a connecting plate of the motor through bolts; the connecting plate is fixed with the speed reducer through bolts.

6. The mounting structure of a motor and a decelerator for a pumping unit according to claim 1, wherein: a photoelectric sensor (16) for detecting the crank operation angle is also fixed on the motor (1) through a bracket (15).

7. The mounting structure of a motor and a decelerator for a pumping unit according to claim 1, wherein: the motor (1) is flat disc-shaped, and a hanging ring (13) and a junction box (14) are further arranged on the side face of the motor (1).