Motor station automatic adjusting device for oil pumping unit

Abstract

The utility model discloses an automatic motor station adjusting device for an oil pumping unit, which comprises bases, two supporting structures which are arranged left and right are connected above the two bases, two guide assemblies and a ball screw are erected above the two supporting structures, the ball screw is arranged between the two guide assemblies, and the two guide assemblies are connected with the ball screw. The left end of the ball screw is connected with a gear motor, a push-pull motor is slidably connected to the upper portions of the two guide assemblies and connected with a nut of the ball screw, a stress sensor is arranged between the push-pull motor and the nut of the ball screw, and the push-pull motor is connected with the pumping unit through a belt. The utility model has the beneficial effects that the automatic adjustment of the motor station is realized, and the tension degree of the belt is ensured to be in an optimal state; according to the automatic adjusting device, the labor intensity of workers is greatly relieved, the non-power-consumption energy of the push-pull motor is reduced, the service life of the belt is prolonged, abnormal conditions such as belt breakage and load separation can be intelligently judged, and the safety of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oilfield well equipment technical field, concretely is a motor work station automatic regulating device for pumping unit. BACKGROUND

[0002] In the oilfield development process, the pumping unit is connected with the motor through the belt, and the motor drives the pumping unit to move, and drives the downhole oil pump to pump the underground crude oil to the ground. The belt is a transmission member, which needs to be replaced in time after failure due to wear and tear and other reasons. The motor needs to be moved to the appropriate position to replace the old belt with a new one, and then the motor needs to be moved to the appropriate position to tension the belt.

[0003] At present, the replacement of the pumping unit belt mainly relies on manual adjustment. The motor is loosened by using a wrench, and is moved by using a lever or a jack screw. The old belt is loosened and removed, a new belt is replaced and the belt is in a tensioned state, and then the motor fixing bolt is tightened to meet the use requirements. After the belt runs for a period of time, it will appear loose and slip, and it needs to be adjusted again. This adjustment method has the disadvantages of many operators, long time consumption, many safety hazards and influence on production. There are also ways to adjust the motor base to adjust the motor work station, such as the automatic adjustment pumping unit motor base disclosed in patent publication No. CN220692937U. The motor is moved by a set of motor brackets driven by a moving assembly. The position of the pumping unit motor can be adjusted, the position of the pumping unit motor can be adjusted, and the tension of the belt in the pumping unit can be adjusted. In the application, the motor is connected with the traction lead screw through the worm and gear to drive the pumping unit motor to move. However, it cannot realize automatic adjustment of the work station of the pumping unit motor, and the worm and gear transmission structure has large heat generation, serious wear and relatively low service life, and high manufacturing cost. At the same time, it cannot intelligently judge the abnormal conditions such as belt breakage and load disengagement, and needs manual monitoring, which is not safe. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a motor work station automatic regulating device for pumping unit to solve the problems in the background art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a motor work station automatic adjusting device for pumping unit, including base, two the base front and rear side by side arrangement, two the upper side of base is connected with two left and right arrangement two support structure, two the upper side of support structure is connected with two guide components and a ball screw, two the guide components front and rear side by side arrangement, the ball screw is arranged in the middle of two guide components, the left end of ball screw is connected with speed reducer motor, two the upper side of guide components is slidably connected with push-pull motor, the push-pull motor is connected with the nut of ball screw, be equipped with stress sensor between the push-pull motor and the nut of ball screw, the push-pull motor is connected with pumping unit through the belt.

[0006] Further preferably, the support structure comprises a support plate, two of the support plates are arranged side by side and are connected to the two bases at their front and rear ends, a first mounting plate is arranged horizontally above the two support plates, two first adjusting seats are arranged above the first mounting plate, a guide shaft support is arranged above each of the two first adjusting seats, a second adjusting seat is arranged between the two first adjusting seats, and a bearing vertical seat is arranged above the second adjusting seat. The first adjusting seat is used to mount the guide shaft support, and the height of the guide shaft support can be adjusted by replacing the first adjusting seat with different heights. The second adjusting seat is used to mount the bearing vertical seat, and the height of the bearing vertical seat can be adjusted by replacing the second adjusting seat with different heights.

[0007] Further preferably, the support plate is in the shape of a Chinese character and is symmetrically arranged on the two bases, ensuring the support strength. A position adjusting gap is arranged between the two support plates, facilitating the adjustment and fixation of the front and rear positions of the first mounting plate.

[0008] Further preferably, the guide component comprises a guide shaft and a sliding sleeve, the sliding sleeve is slidably arranged on the guide shaft, ensuring smooth, stable, and accurate movement of the push-pull motor, and the guide shaft is mounted on the corresponding guide shaft support of the two support structures, achieving the installation of the guide shaft.

[0009] Further preferably, a second mounting plate is connected to the lower side of each of the left and right sides of the push-pull motor, the front and rear ends of the two second mounting plates are connected to the guide shaft through a sliding sleeve, and a plurality of waist-shaped mounting holes are arranged on the second mounting plate, facilitating the installation and position adjustment of the push-pull motor and being suitable for the installation of motors with different specifications.

[0010] Further preferably, a connecting frame is connected below each of the two second mounting plates, a position reaching sensor is installed below each of the two connecting frames, a fixing plate is connected to each of the two support structures, a position reaching adjusting screw is connected to each of the two fixing plates, and the two position reaching adjusting screws correspond to the two position reaching sensors respectively. Through the position reaching sensor and the position reaching adjusting screw, the distance between the second mounting plate and the two support structures can be sensed, the second mounting plate can be prevented from colliding with the support structures, and accidents can be prevented.

[0011] Further preferably, a connecting plate is connected below one of the two second mounting plates, facilitating the connection of the push-pull motor and the ball screw; the connecting plate is arranged at the side of the stress sensor away from the nut of the ball screw, so that the stress sensor can sense the stress of the push-pull motor on the ball screw, that is, the tension of the belt, thereby determining whether to adjust the position of the push-pull motor.

[0012] Further preferably, the base is in an I-shaped structure, facilitating installation, support and fixation; a protective cover is arranged on the outer side cover of the speed reducer, for protecting the speed reducer and prolonging the service life of the speed reducer.

[0013] Further preferably, rubber sleeves are arranged on the guide shaft and the screw rod of the ball screw, for protecting the guide shaft and the screw rod of the ball screw, reducing accidents and prolonging the service life.

[0014] Further preferably, a remote data transmission and control system is connected to the speed reducer, the push-pull motor and the stress sensor, for remote data transmission and remote control of the movement or stop of the speed reducer and the push-pull motor.

[0015] Beneficial effects: The motor work station automatic adjusting device for pumping unit can realize the rotation of the screw rod of the ball screw, the automatic adjustment of the position of the push-pull motor, the automatic adjustment of the motor work station and the best tension of the belt through the cooperation of the stress sensor and the speed reducer; different sizes and specifications of push-pull motors can be installed through the structure of the two guide assemblies and the mounting holes on the second mounting plate, and the device is widely applicable; the height and the front and rear position of the push-pull motor can be adjusted through the support structure, and the left and right movement of the push-pull motor is facilitated, so that the push-pull motor can be in the best motor work station.

[0016] The automatic adjusting device is an intelligent auxiliary push-pull motor optimal position automatic device, which realizes intelligent regulation and control of belt tension, assists manual portable belt replacement through sensor technology, intelligent control technology and automatic structure, has functions of intelligent collection, early warning motor operation state and the like; in the case of daily operation of the push-pull motor, the belt tension can be sensed in real time by a stress sensor and fed back to an actuator of a speed reducer, the distance between a motor wheel of the push-pull motor and a driven wheel of the pumping unit is autonomously adjusted according to a set tension threshold, so that the purpose of adjusting the belt tightness is achieved, and the whole process is automatically adjusted without manual intervention.

[0017] The automatic adjusting device greatly reduces labor intensity, reduces idle power consumption of the push-pull motor, has advantages of prolonging belt service life, reducing motor loss, reducing maintenance workload, saving production cost and the like, can intelligently judge abnormal conditions such as belt breakage and load disengagement, real-time alarm pushing is strengthened, time effectiveness of safety management is strengthened, when the belt reaches the service life or abnormal damage occurs, the stress sensor monitors abnormal changes in tension, and the device is automatically stopped and warning information is sent, real-time terminal alarm is realized, and greater safety accidents are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure schematic view of the motor station automatic adjusting device for the pumping unit without installation of a protective cover is disclosed in the embodiment of the utility model.

[0019] Figure 2 A shaft structure schematic view of the motor station automatic adjusting device for the pumping unit is disclosed in the embodiment of the utility model.

[0020] Figure 3 A front view structure schematic view of the motor station automatic adjusting device for the pumping unit is disclosed in the embodiment of the utility model.

[0021] Figure 4 A top view structure schematic view of the motor station automatic adjusting device for the pumping unit is disclosed in the embodiment of the utility model.

[0022] Figure 5 A structure schematic view of the motor station automatic adjusting device for the pumping unit without installation of a push-pull motor is disclosed in the embodiment of the utility model.

[0023] Signs: 1 - base, 2 - support structure, 21 - support plate, 22 - position adjustment gap, 23 - first mounting plate, 24 - first adjusting seat, 25 - guide shaft support, 26 - second adjusting seat, 27 - bearing stand, 3 - guide assembly, 31 - guide shaft, 32 - sliding sleeve, 4 - ball screw, 5 - speed reducer motor, 6 - second mounting plate, 61 - mounting hole, 7 - push-pull motor, 8 - stress sensor, 9 - to the position sensor, 10 - to the position adjusting bolt, 11 - connecting frame, 12 - fixed plate, 13 - connecting plate, 14 - protective cover. DETAILED DESCRIPTION

[0024] The following is a specific embodiment of the present application and further describes the technical scheme of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0025] For example, Figures 1-5As shown, an automatic adjusting device for motor station of pumping unit, the automatic adjusting device is used for and is connected with pumping unit, is connected through belt, drives daily rotation of pumping unit, can automatically adjust the tension of belt, realizes the purpose of self-regulating belt tightness. The automatic adjusting device comprises a base 1, two bases 1 are arranged side by side in front and back, for the installation, fixation of the automatic adjusting device. The upper portion of the two bases 1 is connected with two support structures 2 arranged side by side, the upper portion of the two support structures 2 is connected with two guide assemblies 3 and a ball screw 4, the two guide assemblies 3 are arranged side by side in front and back, the ball screw 4 is arranged in the middle of the two guide assemblies 3, the left end of the ball screw 4 is connected with a speed reducer motor 5, the upper portion of the two guide assemblies 3 is slidably connected with a push-pull motor 7, the push-pull motor 7 is connected with the nut of the ball screw 4, a stress sensor 8 is arranged between the push-pull motor 7 and the nut of the ball screw 4, the push-pull motor 7 is connected with the pumping unit through a belt. Among them, the support structure 2 is used for the installation of the guide assembly 3, the ball screw 4, the speed reducer motor 5 and the push-pull motor 7, and the two support structures 2 are convenient for adjusting the installation position, and can adapt to the installation of guide assemblies 3 and ball screws 4 of different specifications; the speed reducer motor 5 is used to drive the screw rod of the ball screw 4 to rotate, drive the nut of the ball screw 4 to move left and right, realize the conversion of rotary motion into linear motion, and then realize the horizontal left and right movement of the push-pull motor 7, that is, the distance adjustment between the motor wheel connected with the push-pull motor 7 and the driven wheel connected with the pumping unit, that is, the tightness adjustment of the belt connected between the push-pull motor 7 and the pumping unit, so that the push-pull motor 7 is in the best motor station. And the stress sensor 8 is used to perceive the tensile stress received by the push-pull motor 7, and then the tension of the belt can be obtained, the real-time sensing of the stress sensor 8 is fed back to the actuator of the speed reducer motor 5, and then the start and stop of the speed reducer motor 5 is controlled, the movement of the ball screw 4 is driven through the start and stop of the speed reducer motor 5, finally the left and right movement of the push-pull motor 7 is driven, the belt tension adjustment is realized, and the motor operating state can be intelligently collected and warned through the stress sensor 8, when the belt is broken due to great service life, human damage or equipment abnormality, the information can be fed back to the actuator of the push-pull motor 7 in time, the power energy output is cut off, and the motor operation is stopped. At the same time, through the motor station adjustment of the push-pull motor 7, it is also convenient to assist manual portable replacement of the belt.

[0026] In the present application, the drive structure composed of the ball screw 4 and the speed reducer motor 5 can also be realized by other spiral rotating mechanisms or other horizontal transmission mechanisms, which can drive the horizontal movement of the push-pull motor 7. The automatic adjusting device of the present application is also provided with a simple crane mechanism, which is convenient for field construction operation, without the need to configure a crane, can facilitate the installation of the automatic adjusting device, reduce the demand for manual labor, and improve the safety of installation.

[0027] In the scheme of the application, the support structure 2 comprises a support plate 21 and a first mounting plate 23, and the two support plates 21 are arranged side by side and connected to the two bases 1 at the front and back ends, respectively, facilitating the support and installation of the first mounting plate 23, and the structure is firm. The upper side of the first mounting plate 23 is provided with two first adjusting seats 24 arranged front to back, and the upper side of each of the two first adjusting seats 24 is provided with a guide shaft support 25, which facilitates the installation and support of the guide assembly 3. The distance between the two first adjusting seats 24 is adjustable, which facilitates the adjustment of the distance between the two guide assemblies 3 and can meet the installation of the push-pull motor 7 of different specifications and models. By replacing the first adjusting seat 24 of different height sizes, the height position of the guide assembly 3 can be adjusted to achieve the height position adjustment of the push-pull motor 7, ensuring that the position of the motor wheel connected to the push-pull motor 7 is in the best position, and further ensuring that the movement of the pumping unit by the push-pull motor 7 is in the best state. A second adjusting seat 26 is arranged between the two first adjusting seats 24, and a bearing vertical seat 27 is arranged on the upper side of the second adjusting seat 26, which supports the screw rod of the ball screw 4 and facilitates the rotation of the screw rod of the ball screw. By replacing the second adjusting seat 26 of different heights, the push-pull motor 7 of different height positions can be connected, ensuring smooth and stable left and right movement of the push-pull motor 7.

[0028] Based on the above scheme, the support plate 21 is in the shape of a Chinese character, and the two support plates 21 are symmetrically arranged on the two bases 1, forming a I-shaped structure, which ensures the effective support of the first mounting plate 23 and the stability of the first mounting plate 23. The two support plates 21 are provided with a position adjusting gap 22, which facilitates the adjustment of the front and back installation positions of the first mounting plate 23 and the connection and locking of the first mounting plate 23 and the support plate 21.

[0029] Based on the above scheme, the guide assembly 3 comprises a guide shaft 31 and a sliding sleeve 32, and the sliding sleeve 32 is slidingly arranged on the guide shaft 31. The cooperation of the guide shaft 31 and the sliding sleeve 32 facilitates the left and right sliding of the sliding sleeve 32 on the guide shaft 31, and further facilitates the left and right position adjustment of the push-pull motor 7. The guide shaft 31 is installed on the corresponding guide shaft support 25 of the two support structures 2, achieving the installation and support of the guide shaft 31.

[0030] Based on the above scheme, the lower side of the left and right sides of the push-pull motor 7 is connected with a second mounting plate 6, and the front and back ends of the two second mounting plates 6 are connected with the guide shaft 31 through a sliding sleeve 32, that is, the connection between the push-pull motor 7 and the guide assembly 3 is achieved through the second mounting plate 6. By arranging a plurality of waist-shaped mounting holes 61 on the second mounting plate 6 and adjusting the distance between the two sliding sleeves 32 on the guide shaft 31, the installation of the push-pull motor 7 of different specifications and models can be matched, and the fine adjustment of the front and back positions of the push-pull motor 7 can be facilitated.

[0031] Based on the above scheme, the lower part of each of the two second mounting plates 6 is connected with a connecting frame 11, and the lower part of each of the two connecting frames 11 is mounted with a to-position sensor 9, that is, the installation and protection of the to-position sensor 9 are realized through the connecting frame 11. The to-position sensor 9 is used for to-position sensing when the second mounting plate 6 moves to the position of the support structure 2. A control signal is sent from the to-position sensor 9 to the actuator of the speed reducer motor 5, the power energy output of the speed reducer motor 5 is cut off, the operation of the speed reducer motor 5 is stopped, and the continued operation of the ball screw 4 is prevented to cause the second mounting plate 6 to collide with the support structure 2, thereby causing damage to the equipment. At the same time, an alarm can be sent to the terminal device to remind the equipment of the situation. The two support structures 2 are each connected with a fixed plate 12, and the two fixed plates 12 are each connected with a to-position adjusting bolt 10, and the installation of the to-position adjusting bolt 10 is realized through the fixed plate 12. The two to-position adjusting bolts 10 are respectively arranged corresponding to the two to-position sensors 9, and are used for early warning of the movement between the two second mounting plates 6 and the corresponding two support structures 2.

[0032] Based on the above scheme, one of the two second mounting plates 6 is connected with a connecting plate 13 below, and the connecting plate 13 is arranged on the side of the stress sensor 8 away from the nut of the ball screw 4. Through the arrangement of the connecting plate 13, the connection between the second mounting plate 6 and the ball screw 4 is facilitated, that is, the connection between the ball screw 4 and the push-pull motor 7 is realized. By arranging the stress sensor 8 between the nut of the ball screw 4 and the connecting plate 13, the stress between the second mounting plate 6 and the ball screw 4 can be sensed. The second mounting plate 6 is used for the installation of the push-pull motor 7, and thus it can be known that the stress received by the second mounting plate 6 comes from the push-pull motor 7, and the stress received by the push-pull motor 7 comes from the tension of the belt. That is, the size of the belt tension is sensed through the stress sensor 8, so as to facilitate the control of the operation of the speed reducer motor 5, the driving of the movement of the ball screw 4, the adjustment of the motor station of the speed reducer, and the adjustment of the belt tension connected with the motor station.

[0033] In the scheme of the present application, the base 1 is in an I-shaped structure, which facilitates the installation of the base 1 and the support structure 2, and can reduce the weight of the base 1, thereby ultimately reducing the overall weight of the automatic adjusting device. The outer side cover of the speed reducer motor 5 is provided with a protective cover 14 for protecting the speed reducer motor 5 and the connecting structure coupling between the speed reducer motor 5 and the screw rod of the ball screw 4, so as to prevent dust, rainwater and the like from damaging the speed reducer motor 5 and the coupling.

[0034] In the scheme of the present application, rubber sleeves are sleeved on the guide shaft 31 and the screw rod of the ball screw 4, respectively, for protecting the guide shaft 31 and the screw rod of the ball screw 4, effectively preventing dust, sand, rainwater and the like from falling on the guide shaft 31 and the screw rod of the ball screw 4, and prolonging the service life of the guide shaft 31 and the ball screw 4.

[0035] In the scheme of the application, the speed reducer 5, the push-pull motor 7 and the stress sensor 8 are connected with a remote data transmission and control system, realizing remote transmission of data, facilitating remote control of the operation or stop of the speed reducer 5 and the push-pull motor 7, and realizing terminal alarm and monitoring, further improving the safety performance of the automatic adjusting device.

[0036] In the scheme of the application, the automatic adjusting device is in a track motion mode, and can be flexibly installed on the push-pull motor 7 of different specifications and sizes. The position of the second mounting plate 6 can be adjusted through the ball screw 4, so that the motor wheel of the push-pull motor 7 and the driven wheel of the pumping unit become a line through four points on two planes. After locking the screw, the belt reaches the optimal tension by moving the push-pull motor left and right, and parameter setting is performed at this time to enter the automatic mode. Compared with the conventional belt replacement mode, the automatic adjusting device eliminates the time-consuming and laborious operation procedures such as disassembling and removing the fixing bolts, manually moving the push-pull motor 7, and adjusting the "four-point line". The automatic adjusting device is connected with a control cabinet, which is provided with an emergency stop button, a loosening button, a tightening button, a manual / automatic switching button box and a parameter panel. Only by starting the "loosening" and "tightening" control buttons, the belt replacement work can be completed. The automatic adjusting device evolves the work load of 2 people cooperating for 30 minutes of high-intensity work into a simple work that can be completed by a single person within 5 minutes, saving time, labor and labor cost.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the application, and not for limiting the application, although the application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application should be included in the protection scope of the application.

Claims

1. A device for automatic adjustment of the position of an electric motor of a pumping unit, comprising a base (1), characterized in that: Two said base (1) front and rear side by side, two said base (1) above is connected with two left and right two support structure (2), two said support structure (2) above is connected with two guide assembly (3) and a ball screw (4), two said guide assembly (3) front and rear side by side, the ball screw (4) is set in two guide assembly (3) in the middle, the ball screw (4) left end is connected with a reduction motor (5), two said guide assembly (3) above sliding connection has a push-pull motor (7), the push-pull motor (7) and ball screw (4) nut is connected, the push-pull motor (7) and ball screw (4) nut between stress sensor (8) is equipped with, the push-pull motor (7) is connected with pumping unit through the belt.

2. The automatic adjustment device for motor station of pumping unit according to claim 1, characterized in that: The support structure (2) comprises a support plate (21), two support plates (21) are arranged side by side and are connected with two bases (1) at the front and rear ends, respectively, two support plates (21) are connected with a horizontally arranged first mounting plate (23) above, the first mounting plate (23) is provided with two first adjusting seats (24) arranged in front and back, two first adjusting seats (24) are provided with a guide shaft support (25) above, a second adjusting seat (26) is arranged between two first adjusting seats (24), and a bearing vertical seat (27) is arranged above the second adjusting seat (26).

3. The automatic adjustment device for the motor station of a pumping unit according to claim 2, characterized in that: The support plate (21) is in the shape of a Chinese character, two support plates (21) are arranged symmetrically on two bases (1), and a position adjusting gap (22) is arranged between two support plates (21).

4. The automatic adjustment device for motor station of pumping unit according to claim 2, characterized in that: The guide assembly (3) comprises a guide shaft (31) and a sliding sleeve (32), the sliding sleeve (32) is slidably arranged on the guide shaft (31), and the guide shaft (31) is installed on the corresponding guide shaft support (25) of two support structures (2).

5. The automatic adjustment device for the motor station of a pumping unit according to claim 4, characterized in that: The left and right sides of the push-pull motor (7) are connected with a second mounting plate (6) below, the front and rear ends of two second mounting plates (6) are connected with guide shafts (31) through sliding sleeves (32), and the second mounting plate (6) is provided with a plurality of waist-shaped mounting holes (61).

6. The automatic adjustment device for the motor station of a pumping unit according to claim 5, characterized in that: Two second mounting plates (6) are connected with a connecting frame (11) below, two connecting frames (11) are installed with a reach sensor (9) below, two support structures (2) are connected with a fixed plate (12), two fixed plates (12) are connected with a reach adjusting bolt (10), and two reach adjusting bolts (10) are arranged corresponding to two reach sensors (9), respectively.

7. The automatic adjustment device for the motor station of a pumping unit according to claim 5, characterized in that: One of two second mounting plates (6) is connected with a connecting plate (13) below, and the connecting plate (13) is arranged on the side of the stress sensor (8) away from the nut of the ball screw (4).

8. The automatic adjustment device for motor station of pumping unit according to claim 1, characterized in that: The base (1) is in the shape of an I-shaped structure, and the outer side cover of the reduction motor (5) is provided with a protective cover (14).

9. The automatic adjustment device for the motor station of a pumping unit according to claim 4, characterized in that: Rubber sleeves are arranged on the guide shaft (31) and the screw rod of the ball screw (4).

10. The automatic adjustment device for motor station of pumping unit according to claim 1, characterized in that: The reduction motor (5), push-pull motor (7) and stress sensor (8) are connected with a remote data transmission and control system.

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