CN216381331U - Motor auxiliary device for oil pumping unit - Google Patents
Motor auxiliary device for oil pumping unit Download PDFInfo
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- CN216381331U CN216381331U CN202123266346.0U CN202123266346U CN216381331U CN 216381331 U CN216381331 U CN 216381331U CN 202123266346 U CN202123266346 U CN 202123266346U CN 216381331 U CN216381331 U CN 216381331U
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- connecting pipe
- pumping unit
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- lifting
- pneumatic cylinder
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Abstract
The utility model discloses a motor auxiliary device for an oil pumping unit, which comprises an energy accumulator and two hydraulic cylinders, wherein the two hydraulic cylinders are fixed in a bearing cylinder of the oil pumping unit, piston rods of the hydraulic cylinders are upward and are respectively fixed with a connecting lug ring, a lifting rod is arranged between the two hydraulic cylinders, the upper end of the lifting rod is fixed with a lifting optical axis, the two ends of the lifting optical axis are respectively fixed with the connecting lug ring, the lower end of the bearing cylinder is provided with a through hole, the upper end of a screw rod of the oil pumping unit passes through the through hole and is fixedly connected with the lower end of the lifting rod, the energy accumulator is connected with a first connecting pipe, a liquid replenishing valve is arranged on the first connecting pipe, the first connecting pipe is respectively and fixedly connected with a second connecting pipe and a third connecting pipe, the third connecting pipe is respectively communicated with the hydraulic cylinders, and an emptying valve is arranged on the second connecting pipe. An electric motor auxiliary device for an oil pumping machine can reduce the loss of a motor and a lead screw.
Description
Technical Field
The utility model relates to the field of power of pumping units, in particular to a motor auxiliary device for a pumping unit.
Background
The oil pumping machine is a machine for exploiting oil, and is commonly called a head knocking machine. The pumping unit is the most main lifting equipment in the rod pumping system. According to whether there is a walking beam, it can be divided into a walking beam type pumping unit and a non-walking beam type pumping unit. The pumping unit drives the screw rod to reciprocate up and down by the motor, and in order to rotate and pull the threaded screw rod, the screw rod reciprocates up and down, and the motor needs to use larger power to be matched with the screw rod. When the load of the screw rod is too large, the load required by the motor is also extremely large, the power consumption is excessive during ascending, and irreversible damage is easily generated to the motor and the screw rod; when the motor moves downwards, the lower part bears a large load, so that the screw rod drives the motor to rotate reversely, the motor performs negative work, and the service life of the motor is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a motor auxiliary device for an oil pumping unit, which can reduce the loss of a motor and a lead screw.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a motor auxiliary device for beam-pumping unit, includes energy storage ware and pneumatic cylinder, the pneumatic cylinder is provided with two, the pneumatic cylinder is fixed in the bearing cylinder of beam-pumping unit, the piston rod of pneumatic cylinder just up is fixed with the engaging lug ring respectively, two be equipped with the lifting rod between the pneumatic cylinder, lifting rod upper end is fixed with the lifting optical axis, lifting optical axis both ends are fixed with the engaging lug ring respectively, the bearing cylinder lower extreme is equipped with the perforation, the lead screw upper end of beam-pumping unit is passed perforation and is lifted pole lower extreme fixed connection, the energy storage ware is connected with connecting pipe one, install the moisturizing valve on the connecting pipe one, connecting pipe one respectively with connecting pipe two and two three fixed connection of connecting pipe, connecting pipe three respectively with the pneumatic cylinder intercommunication, install the blowoff valve on the connecting pipe two.
Preferably, the hydraulic cylinder and the bearing cylinder are fixed through a mounting flange.
Preferably, the lifting optical axis and the lifting rod are fixed through bolts.
Preferably, a communication valve is installed at an outlet of the accumulator.
Preferably, the first connecting pipe is fixedly connected with the second connecting pipe and the third connecting pipe through a four-way joint.
Compared with the prior art, the utility model has the beneficial effects that:
when the pumping unit is in an up stroke, the motor drives the screw rod to move upwards, the hydraulic cylinder energy accumulator pushes the hydraulic cylinder to move upwards, the upper end of the hydraulic cylinder does work on the suspension point load, the potential energy of the energy accumulator is converted into mechanical energy, and the suspension point is lifted; during the down stroke, the suspension point load and the motor work together to the energy accumulator, so that the energy accumulator stores potential energy, the downward movement of the screw rod is smoother, and the loss of the motor and the screw rod is reduced.
Drawings
Fig. 1 is a schematic structural view of a motor assist device for a pumping unit according to an embodiment of the present invention;
in the figure, the hydraulic cylinder comprises an energy accumulator 1, an energy accumulator 2, a hydraulic cylinder 3, a bearing cylinder 4, a mounting flange 5, a connecting lug ring 6, a lifting rod 7, a lifting optical axis 8, a bolt 9, a perforation 10, a communication valve 11, a connecting pipe I, a connecting pipe 12, a liquid supplementing valve 13, a connecting pipe II, a connecting pipe 14, a connecting pipe III, a connecting pipe 15 and an emptying valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an electric motor auxiliary device for an oil pumping unit includes an accumulator 1 and two hydraulic cylinders 2, and the number of the hydraulic cylinders 2 is two. The hydraulic cylinder 2 is fixed in a bearing cylinder 3 of the oil pumping unit, and the hydraulic cylinder 2 and the bearing cylinder 3 are fixed through a mounting flange 4. The piston rod of pneumatic cylinder 2 just up is fixed with connecting earrings 5 respectively, is equipped with lifting rod 6 between two pneumatic cylinders 2, and lifting rod 6 upper end is fixed through bolt 8 with lifting optical axis 7, and lifting optical axis 7 both ends are fixed with connecting earrings 5 respectively. The lower end of the bearing cylinder 3 is provided with a through hole 9, and the upper end of a screw rod of the oil pumping unit passes through the through hole 9 to be fixed with the lower end of the lifting rod 6. The outlet of the energy accumulator 1 is provided with a communicating valve 10, the energy accumulator 1 is connected with a first connecting pipe 11, and the first connecting pipe 11 is provided with a liquid supplementing valve 12. The first connecting pipe 11 is fixedly connected with the second connecting pipe 13 and the third connecting pipes 14 through the four-way joint, the third connecting pipes 14 are respectively communicated with the hydraulic cylinder 2, and the second connecting pipe 13 is provided with an exhaust valve 15.
The working principle is as follows: before the motor works, the communication valve 10 is opened, so that the energy accumulator 1 is communicated with the pipeline, hydraulic fluid flows into the hydraulic cylinder 2 through the communication valve 10, the first connecting pipe 11 and the third connecting pipe 14, and the emptying valve 15 is opened to discharge air in the pipeline and then is closed. When the motor does work upwards, the lifting rod 6 is driven to move upwards, potential energy of the energy accumulator 1 is converted into mechanical energy to push the interior of the hydraulic cylinder 2 to move upwards, the hydraulic cylinder 2 drives the lifting optical axis 7 to move upwards, and the hydraulic cylinder 2 and the motor simultaneously lift the lifting optical axis 7 to move upwards, so that the motor does not need to do work with high power alone.
The motor drives the lead screw during operation downwards, drive 6 downstream of pole of lifting, the pole of lifting 6 drives 7 downstream of optical axis of lifting, optical axis of lifting 7 drives 2 downward compressions of pneumatic cylinder, hydraulic fluid flow in the pneumatic cylinder 2 flows to energy storage ware 1, the increase of pressure makes mechanical energy turn into the potential energy in the energy storage ware 1, make pneumatic cylinder 2 apply ascending power for optical axis of lifting 7 simultaneously, power is according to the 2 downward compression degree of pneumatic cylinder and the reinforcing, make optical axis of lifting 7 descend more gently, the loss of motor has been reduced. After the operation is completed, the hydraulic fluid replenishing valve 12 is opened to replenish the hydraulic fluid.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (5)
1. An electric motor auxiliary device for a pumping unit, characterized in that: including energy storage ware and pneumatic cylinder, the pneumatic cylinder is provided with two, the pneumatic cylinder is fixed in the bearing cylinder of beam-pumping unit, the piston rod of pneumatic cylinder just up fixed with the engaging lug ring respectively, two be equipped with the pole of lifting between the pneumatic cylinder, it is fixed with the optical axis of lifting upper end the pole of lifting, it is fixed with the engaging lug ring respectively to lift optical axis both ends, it is equipped with the perforation to bear a section of thick bamboo lower extreme, the lead screw upper end of beam-pumping unit is passed perforation and is lifted pole lower extreme fixed connection, the energy storage ware is connected with connecting pipe one, install the moisturizing valve on the connecting pipe one, connecting pipe one respectively with connecting pipe two and two three fixed connection of connecting pipe, three communicate with the pneumatic cylinder respectively of connecting pipe, install the blowoff valve on the connecting pipe two.
2. The motor assist device for a pumping unit according to claim 1, wherein: the hydraulic cylinder and the bearing cylinder are fixed through a mounting flange.
3. The motor assist device for a pumping unit according to claim 1, wherein: the lifting optical axis and the lifting rod are fixed through bolts.
4. The motor assist device for a pumping unit according to claim 1, wherein: and a communicating valve is arranged at an outlet of the energy accumulator.
5. The motor assist device for a pumping unit according to claim 1, wherein: the first connecting pipe is fixedly connected with the second connecting pipe and the third connecting pipe through the four-way joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123266346.0U CN216381331U (en) | 2021-12-23 | 2021-12-23 | Motor auxiliary device for oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123266346.0U CN216381331U (en) | 2021-12-23 | 2021-12-23 | Motor auxiliary device for oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216381331U true CN216381331U (en) | 2022-04-26 |
Family
ID=81238750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123266346.0U Active CN216381331U (en) | 2021-12-23 | 2021-12-23 | Motor auxiliary device for oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216381331U (en) |
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2021
- 2021-12-23 CN CN202123266346.0U patent/CN216381331U/en active Active
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