CN217602633U

CN217602633U - Energy-saving oil pumping machine capable of balancing up-stroke and down-stroke acting by using spring storage

Info

Publication number: CN217602633U
Application number: CN202220188828.4U
Authority: CN
Inventors: 张智; 王柱军; 谢剑晨
Original assignee: Zhongdiantianwei Jinzhou Petroleum Technology Equipment Co ltd
Current assignee: Zhongdiantianwei Jinzhou Petroleum Technology Equipment Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-10-18
Anticipated expiration: 2032-01-24

Abstract

The utility model discloses an utilize spring to store energy-conserving beam-pumping unit of balanced up-down stroke acting of ability can make the beam-pumping unit speed when the up-down stroke is even, and the motor is done work evenly, realizes reducing the energy consumption at oil recovery in-process. The device comprises an equipment foundation, a power part A, a volute spiral spring assembly B and a winding roller, wherein the left and right ends of an output shaft of the power part A are respectively connected with the volute spiral spring assembly B and the winding roller, a flexible sucker rod is spirally wound on the winding roller, a head sheave gantry support and a roll-over stand assembly C are arranged at the front part of the equipment foundation from front to back, a head sheave assembly D is arranged on the roll-over stand assembly C, the roll-over stand assembly C is fixedly connected with the head sheave gantry support during production, the leading-out end of the flexible sucker rod is wound around the head sheave assembly D and then is opposite to a well mouth, and the volute spiral spring assembly B is in an energy storage state and a release state when the sucker rod descends and ascends along the well mouth; during operation, the roll-over stand assembly C is separated from the head sheave gantry support, and is turned over backwards and fixed.

Description

Energy-saving oil pumping machine capable of balancing up-stroke and down-stroke acting by using spring storage

Technical Field

The utility model relates to a beam-pumping unit field especially relates to an utilize spring to store energy-conserving beam-pumping unit of ability technical balance up-down stroke acting.

Background

In the process of oil production, in order to solve the problem that the up-down stroke work of the oil pumping unit is seriously unbalanced, the most common method at present adopts a balance block mechanism.

The power of the motor of the pumping unit is selected according to the maximum lifting load, when the pumping unit ascends, the load is maximum, the current of the motor is also maximum, and the output force of the motor is also maximum; and when the pumping unit moves downwards, the working conditions are opposite. When the pumping unit moves downwards, the balance block is used for increasing the load, so that the energy consumption is caused. With the deepening of the well depth, deep well pumping units and long stroke pumping units are more and more widely used, and the energy waste is more serious.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an utilize spring to store up energy balance up-down stroke acting's energy-conserving beam-pumping unit. When the pumping unit moves downwards, the downward damping is increased, the downward speed is kept constant, and the spring starts to store energy; when the oil pumping unit ascends, the load is increased, the spring releases energy, the auxiliary motor lifts the load, the speed of the oil pumping unit is uniform during the ascending stroke and the descending stroke, the work of the motor is uniform, the power of the primary selection motor is reduced, and the energy consumption is reduced in the oil extraction process.

The technical solution of the utility model is that: an energy-saving pumping unit for balancing up-and-down stroke work by utilizing spring storage and release energy comprises an equipment foundation, wherein a power part A is arranged at the rear part of the equipment foundation, a volute spring assembly B and a winding roller are respectively arranged on the left side and the right side of the power part A on the equipment foundation, an output shaft of the power part A is provided with a left end outlet and a right end outlet, the left end outlet and the right end outlet are respectively connected with the corresponding volute spring assembly B and the corresponding winding roller, a flexible pumping rod is spirally wound on the winding roller, a head sheave gantry support and a turnover frame assembly C are arranged on the front part of the equipment foundation from front to back, a head sheave assembly D is arranged on the turnover frame assembly C, the turnover frame assembly C is fixedly connected with the head sheave gantry support during production, the leading-out end of the flexible pumping rod is wound around the head sheave assembly D and is opposite to a well mouth, the volute spring assembly B is in an energy storage state when the pumping rod goes down along the well mouth, and the volute spring assembly B is in a release state when the pumping rod goes up along the well mouth; during operation, the roll-over stand assembly C is separated from the head sheave gantry support, and is turned over backwards and fixed.

Further, volute spiral spring assembly B includes volute spiral spring shell, volute spiral spring and volute spiral spring roller core, volute spiral spring shell installs on equipment basis, volute spiral spring's inner circle cover is on volute spiral spring roller core and volute spiral spring's inner end and spring roller core fixed connection, volute spiral spring's outer end is fixed on volute spiral spring shell inner wall.

Furthermore, a pressing bar is arranged on the equipment foundation corresponding to the position between the head sheave gantry support and the roll-over stand assembly C, and the pressing bar presses the equipment foundation firmly through a bolt penetrating through the equipment foundation and connected with a screw hole on an oil well cement platform positioned below the equipment foundation.

The turning frame assembly C comprises a turning shaft frame fixedly arranged on the equipment base and positioned behind a head sheave gantry support, a turning shaft arranged in the turning shaft frame, a head sheave turning frame with the lower end hinged with the turning shaft, a ground anchor fixedly arranged on the equipment base and positioned behind the turning shaft frame, and a steel wire pull rope connected between the head sheave assembly D and the ground anchor, wherein a vertical support is arranged at the upper part of the head sheave turning frame, square flanges mutually connected are arranged between the bottom surface of the vertical support and the top surface of the head sheave gantry support, and the head sheave turning frame turns backwards and is supported on the equipment base and is tensioned and fixed through the steel wire pull rope during operation.

Further, the head sheave assembly D comprises a supporting seat, a bearing bush seat, a head sheave shaft and a head sheave, wherein the supporting seat is fixedly installed on the top surface of the head sheave overturning frame, the bearing bush seat is fixedly installed on the supporting seat, the head sheave is installed on the head sheave shaft, and two ends of the head sheave shaft are installed on the bearing bush seat.

Furthermore, adjusting nuts are respectively welded on the left end face of the bearing bush seat on the left side and the right end face of the bearing bush seat on the right side, adjusting bolts are respectively installed on the two adjusting nuts, one end of each adjusting bolt, which is located in the bearing bush seat, abuts against the end face of the side of the head sheave shaft, a check nut is further installed on each adjusting bolt, each adjusting nut, each adjusting bolt and each check nut form a translation fine adjustment mechanism, and the left and right positions of the head sheave can be finely adjusted through adjusting bolts on the left side and the right side.

Further, the power part A comprises a motor, a speed reducer and a brake, the motor is fixedly arranged on a speed reducer base and used for providing power for the speed reducer, an input shaft and an output shaft of the speed reducer respectively have a left end and a right end, and the left end and the right end of the input shaft of the speed reducer are respectively connected with the brake and the motor.

Furthermore, a speed reducer base and a suspension beam are fixedly arranged on the equipment foundation, a brake base is fixedly arranged on the suspension beam, the speed reducer is arranged on the speed reducer base, the brake is fixedly arranged on the brake base, and the motor is fixedly arranged on the speed reducer base.

Further, the motor is a permanent magnet synchronous direct drive motor, and the brake is an electromagnetic brake. The permanent magnet synchronous direct drive motor is selected as a power source and used for winding the flexible polished rod, and the motor works uniformly, so that the power of the primary selection motor is reduced, and the energy consumption is reduced in the oil extraction process.

Furthermore, the length of the equipment foundation is less than or equal to 5m, and the width of the equipment foundation is less than or equal to 2.6m. The size of the equipment foundation is suitable for long-distance transportation and field installation, an oil well cement platform can be directly utilized, additional construction is not needed, the operation cost and the labor cost are reduced, and the installation time is shortened.

The utility model has the advantages that: the power part, the head sheave assembly and the roll-over stand assembly are installed on the same equipment base, and a double-in double-out speed reducer is selected, so that the structure is compact and firm, the occupied area is small, the installation and the disassembly are convenient, and the operation is convenient. The spiral spring is used as an energy storage element, when the pumping unit moves downwards, the downward damping is increased, the downward speed is kept constant all the time, and the spring starts to store energy; when the pumping unit goes up, the load is increased, the spring releases energy, the auxiliary motor lifts the load, and the speed of the pumping unit is uniform during the up-stroke and down-stroke. The switching of production and operation can be realized through the roll-over stand assembly, improves production and operating efficiency, convenient operation safety.

Drawings

Fig. 1 is a schematic structural view of the energy-saving pumping unit of the present invention during operation;

FIG. 2 is an enlarged view of section F of FIG. 1;

fig. 3 is a schematic structural view of the energy-saving pumping unit of the present invention during operation;

fig. 4 is a downward ending top view (spiral spring winding state) of the energy-saving pumping unit of the present invention;

FIG. 5 is an enlarged view of section E of FIG. 4;

fig. 6 is a schematic view of the energy-saving pumping unit in a downward ending spiral spring winding state;

FIG. 7 is a view from the K direction of FIG. 1 (the pump down end);

FIG. 8 is a view from the K direction of FIG. 1 (pumping unit up end);

fig. 9 is a schematic view of the energy-saving pumping unit in a downward ending spiral spring winding state;

FIG. 10 is a schematic diagram of the infrastructure of the device;

FIG. 11 is a top view of FIG. 9;

FIG. 12 is a left side view of FIG. 9;

FIG. 13 is a left side view of the head sheave assembly and the roll-over stand assembly;

fig. 14 is a schematic view of a square flange configuration.

In the figure: 1. the device comprises a volute spiral spring shell, 2. A volute spiral spring, 3. A volute spiral spring roller core, 4. An electromagnetic brake, 5. A speed reducer, 6. A permanent magnet synchronous direct drive motor, 7. A winding roller, 8. An equipment foundation, 9. A speed reducer base, 10. An electromagnetic brake base, 11. A suspension beam, 12. A flexible sucker rod, 13. A head sheave, 14. A wellhead, 15. A head sheave gantry support, 16. A head sheave roll-over frame, 17 ground anchors, 18. A pressure bar, 19. A roll-over shaft, 20. A roll-over shaft frame, 21. A head sheave shaft, 22. A support seat, 23. A steel wire pull rope, 24. A square flange, 25. A bearing bush seat, 26. An adjusting nut, 27. An adjusting bolt, 28. A locknut and 29. An oil well cement platform.

Detailed Description

The utility model relates to an utilize spring to store energy-conserving beam-pumping unit that can balance up-down stroke acting, as shown in figure 1, figure 3, figure 4 and figure 5, including equipment foundation 8, set up power part A at equipment foundation 8 rear portion, lie in power part A left side and right side on equipment foundation 8 and set up volute spiral spring assembly B and wind-up roll 7 respectively, power part A output shaft has left and right-hand member and goes out the head and be connected with wind-up roll 7 through the key strip right-hand member of output shaft goes out the head the left end of power part A output shaft goes out the head and is connected with volute spiral spring assembly B, spiral winding flexible sucker rod 12 on wind-up roll 7, by preceding to back installation day wheel gantry support 15 and roll-over stand assembly C in equipment foundation 8 front portion, day wheel gantry support 15 vertical welding is on equipment foundation 8, installation day wheel assembly D on roll-over stand assembly C, roll-over stand assembly C and day wheel gantry support 15 fixed connection during production. One end of the flexible sucker rod 12 is wound in the spiral groove of the winding roller 7, and the other end of the flexible sucker rod 12 enters the leading-out end of the wellhead 14 through the head sheave 13, passes through the head sheave assembly D and then is opposite to the wellhead 14 to be connected with an oil well pump; when the sucker rod 12 goes down the wellhead, the spiral spring assembly B is in an energy storage state, as shown in FIG. 6; the wrap spring assembly B is in a released state as the sucker rod 12 travels up the inlet as shown in FIG. 9. During operation, the roll-over stand assembly C is separated from the head sheave gantry support 15, overturned towards the power part A side and fixed in a suspension way.

Referring to fig. 7, 8, 10, 11 and 12, the power part a includes a speed reducer base 9, a suspension beam 11, an electromagnetic brake base 10, a permanent magnet synchronous direct drive motor 6, a speed reducer 5 and an electromagnetic brake 4, the speed reducer base 9 and the suspension beam 11 are welded on the equipment foundation 8, the electromagnetic brake base 10 is fixedly arranged on the suspension beam 11, the speed reducer 5 is arranged on the speed reducer base 9, the electromagnetic brake 4 is fixedly arranged on the electromagnetic brake base 10, the permanent magnet synchronous direct drive motor 6 is fixedly arranged on the speed reducer base 9 and used for providing power for the speed reducer, an input shaft and an output shaft of the speed reducer 5 are respectively provided with a left end and a right end, the right end of the input shaft is connected with the motor 6, and the left end of the input shaft is connected with a brake drum of the electromagnetic brake 4 through a key bar.

As shown in fig. 4, 6, 7, 8 and 9, the scroll spring assembly B includes a scroll spring housing 1, a scroll spring 2 and a scroll spring roller core 3, the scroll spring housing 1 is mounted on the suspension beam 11 through a bolt, the scroll spring 2 is mounted on the scroll spring housing 1, an inner ring of the scroll spring 2 is sleeved on the spring roller core 3, an inner end of the scroll spring 2 is fixedly connected with the spring roller core 3, an outer end of the scroll spring 2 is fixed on an inner wall of the scroll spring housing 1, and the scroll spring roller core 3 is mounted on a left end output shaft of the speed reducer 5 through a key.

With reference to fig. 1, 2, 3, 10, 11, 12, 13 and 14, the roll-over stand assembly C includes a roll-over shaft bracket 20 fixed on the equipment foundation 8 behind the head sheave gantry bracket 15, a roll-over shaft 19 mounted in the roll-over shaft bracket 20, a head sheave roll-over stand 16 with a lower end hinged to the roll-over shaft 19, a ground anchor 17 fixedly mounted on the equipment foundation 8 behind the roll-over shaft bracket 20, and a wire rope 23 connected between the head sheave assembly D and the ground anchor 17, wherein a vertical pillar 1601 is provided on the upper portion of the head sheave roll-over stand 16, and a square flange 24 connected to each other through a connecting bolt and a nut is provided between the bottom surface of the vertical pillar 1601 and the top surface of the head sheave gantry bracket 15, during operation, the head sheave roll-over stand 16 is separated from the head sheave gantry bracket 15 and turned over backwards until the lower end surface of the head sheave roll-over stand 16 is supported on the equipment foundation 8, and then one end of the wire rope 23 is tied to the head sheave 13 of the head sheave assembly D and the wire rope is tied to the ground anchor 18.

As shown in fig. 1, 3, 4 and 5, the head sheave assembly D includes a supporting base 22 fixedly mounted on the top surface of the head sheave roll-over stand 16, a bearing block 25 welded to the supporting base 22, a head sheave shaft 21 mounted on the bearing block 25 at both ends thereof, and a head sheave 13 mounted on the head sheave shaft through a bearing.

As shown in fig. 1, 3 and 4, a pressing bar 18 is arranged on the equipment foundation 8 at a position corresponding to the position between the head sheave gantry support 15 and the head sheave roll-over stand 16, and the pressing bar 18 presses the equipment foundation 8 firmly through bolts penetrating through the equipment foundation and connected with an oil well cement platform 29 positioned below the equipment foundation.

As shown in fig. 5 and 13, adjusting nuts 26 are welded to the left end surface of the bearing bush seat 25 on the left side and the right end surface of the bearing bush seat 25 on the right side, adjusting bolts 27 are respectively installed on the two adjusting nuts 26, one end of each adjusting bolt located in the bearing bush seat 25 abuts against the end surface of the side of the head sheave shaft 21, a locknut 28 is further installed on each adjusting bolt 27, the adjusting nuts 26, the adjusting bolts 27 and the locknuts 28 form a translational fine adjustment mechanism, and the left and right positions of the head sheave 13 can be finely adjusted through the adjusting bolts on the left and right sides.

The length of the equipment foundation 8 is less than or equal to 5m, and the width of the equipment foundation is less than or equal to 2.6m. The equipment foundation size is suitable for long-distance transportation and field installation, an oil well cement platform of a crude oil standard pumping unit can be directly utilized, additional construction is not needed, the operation cost and the labor cost are reduced, and the installation time is shortened.

The working process is as follows:

the equipment foundation 8 is manufactured and finished in a manufacturing enterprise, and the size of the equipment foundation meets the requirement of road transportation, and the equipment foundation is not ultra-wide, ultra-high and overweight. After the oil well site is reached, the equipment foundation 8 is hoisted to an oil well cement platform 29 by a crane to be initially positioned, and then the power part A, the scroll spring assembly B, the wind-up roll 7, the roll-over stand assembly C and the head sheave assembly D are sequentially arranged on the equipment foundation 8. And adjusting the head sheave assembly D to align the tangent of the head sheave 13 with the center of the wellhead, and then firmly compacting the equipment foundation 8 on an oil well cement platform 29 by using the pressing rod 18 to finish the installation of the pumping unit.

After the oil pumping machine is installed, the flexible sucker rod 12 is pulled out from the winding roller 7 and is vertically guided to an oil well through the head sheave 13 to be connected with the sucker rod of the oil well pump in the oil well. The oil pumping machine, the sucker rod and the oil well pump are installed and connected, and the condition of producing crude oil is met.

After the pumping unit is powered on and operated, the positive and negative rotation of the winding roll 7 is realized by controlling the positive and negative rotation of the permanent magnet synchronous direct drive motor 6, the flexible sucker rod 12 spirally wound on the winding roll 7 moves along with the winding roll in two directions, and the flexible sucker rod 12 pulls the sucker rod of the oil well pump in the oil well to move up and down after passing through the head sheave 13, so that the crude oil production is realized. When oil-well pump sucker rod downstream, oil-well pump sucker rod dead weight is descending power, and for control speed, volute spiral spring assembly B has played the effect that increases damping, and volute spiral spring assembly B is rolled up more tightly at the in-process that descends more, has converted descending kinetic energy into elastic energy, and volute spiral spring assembly B realizes the energy storage. When the sucker rod of the oil well pump moves upwards under the action of the power part A, the volute spiral spring assembly B is in a state of releasing elastic energy, and the auxiliary power part A drives the sucker rod of the oil well pump to move upwards so as to lift underground crude oil to the ground.

When the oil well stops production, firstly, the sucker rod of an oil well pump in the oil well is disconnected with the flexible sucker rod 12, the power part A is operated to completely wind the flexible sucker rod 12 on the winding roller 7, the connecting bolt of the square flange 24 is removed to separate the turning frame assembly C from the head sheave gantry support 15, the end of the flexible sucker rod 12 is connected with the head sheave assembly D, the power part A is started, the winding roller 7 rotates, the turning frame assembly C and the head sheave assembly D are pulled to rotate around the turning shaft 19 through the flexible sucker rod 12, the head sheave assembly D is far away from the well mouth, and a space is reserved for operation. After the roll-over stand assembly C and the head sheave assembly D are turned over in place, the roll-over stand assembly C and the head sheave assembly D are pulled and fixed on the ground anchor 17 by the steel wire pull rope 23, and operation preparation is completed.

After the operation is finished, the steel wire pull rope 23 is loosened, the power part A is started, the wind-up roll 7 rotates, the roll-over stand assembly C and the head sheave assembly D turn over to the head sheave gantry support 15 under the action of gravity moment, the square flange 24 is aligned and then fastened through bolts, and the fixed production operation is finished.

The above description is only for the purpose of illustrating particular embodiments of the present invention and is not intended to limit the present invention, which may be modified and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an utilize energy-conserving beam-pumping unit of spring storage and release energy balance up-down stroke doing work, includes equipment basis (8), sets up power part A, characterized by at equipment basis rear portion: the device is characterized in that a volute spiral spring assembly B and a winding roller (7) are respectively arranged on the left side and the right side of a power part A on an equipment foundation, an output shaft of the power part A is provided with a left end outlet and a right end outlet, the left end outlet and the right end outlet are respectively connected with the corresponding volute spiral spring assembly B and the corresponding winding roller, a flexible sucker rod (12) is spirally wound on the winding roller, a head sheave gantry support (15) and a turning frame assembly C are arranged on the front portion of the equipment foundation from front to back, a head sheave assembly D is arranged on the turning frame assembly C, the turning frame assembly C is fixedly connected with the head sheave gantry support during production, the leading-out end of the flexible sucker rod (12) is wound around the head sheave assembly D and then is opposite to a well mouth (14), the volute spiral spring assembly B is in an energy storage state when the flexible sucker rod descends along the well mouth, and the volute spiral spring assembly B is in a release state when the flexible sucker rod ascends along the well mouth; during operation, the roll-over stand assembly C is separated from the head sheave gantry support (15), and is turned over backwards and fixed.

2. The energy-saving pumping unit using the spring storage to balance the up-stroke and down-stroke work according to claim 1, characterized in that: volute spiral spring assembly B includes volute spiral spring shell (1), volute spiral spring (2) and volute spiral spring roller core (3), volute spiral spring shell (1) is installed on equipment basis (8), the inner circle cover of volute spiral spring (2) is on volute spiral spring roller core (3) and the inner end and the spring roller core (3) fixed connection of volute spiral spring (2), the outer end of volute spiral spring (2) is fixed on volute spiral spring shell (1) inner wall.

3. The energy-saving pumping unit according to claim 1, wherein the energy-saving pumping unit using the spring to store energy for balancing the up-stroke and the down-stroke is characterized in that: and a pressing bar (18) is arranged on the equipment foundation (8) corresponding to the position between the head sheave gantry support (15) and the roll-over stand assembly C, and the pressing bar (18) firmly presses the equipment foundation through a bolt which penetrates through the equipment foundation and is connected with a screw hole on an oil well cement platform (29) positioned below the equipment foundation.

4. The energy-saving pumping unit according to claim 1, wherein the energy-saving pumping unit using the spring to store energy for balancing the up-stroke and the down-stroke is characterized in that: the overturning frame assembly C comprises an overturning shaft frame (20) fixedly arranged on an equipment base (8) and positioned behind a head sheave gantry support (15), an overturning shaft (19) arranged in the overturning shaft frame, a head sheave overturning frame (16) with the lower end hinged with the overturning shaft (19), a ground anchor (17) fixedly arranged on the equipment base (8) and positioned behind the overturning shaft frame (20), and a steel wire pull rope (23) connected between a head sheave assembly D and the ground anchor (17), wherein a vertical support (1601) is arranged at the upper part of the head sheave overturning frame (16), square flanges (24) mutually connected are arranged between the bottom surface of the vertical support and the top surface of the head sheave gantry support (15), and the head sheave overturning frame (16) is overturned backwards and supported on the equipment base (8) during operation and is tensioned and fixed through the steel wire pull rope (23).

5. The energy-saving pumping unit using the spring storage to balance the up-stroke and down-stroke work according to claim 1, characterized in that: the head sheave assembly D comprises a supporting seat (22), a bearing bush seat (25), a head sheave shaft (21) and a head sheave (13), wherein the supporting seat (22) is fixedly arranged on the top surface of a head sheave roll-over frame (16), the bearing bush seat (25) is fixedly arranged on the supporting seat (22), the head sheave (13) is arranged on the head sheave shaft (21), and two ends of the head sheave shaft (21) are arranged on the bearing bush seat (25).

6. The energy-saving pumping unit using the spring storage to balance the up-stroke and down-stroke work according to claim 5, characterized in that: adjusting nuts (26) are respectively welded on the left end face of the bearing bush seat (25) on the left side and the right end face of the bearing bush seat (25) on the right side, adjusting bolts (27) are respectively installed on the two adjusting nuts (26), one end of each adjusting bolt in the bearing bush seat (25) abuts against the side end face of the head sheave shaft (21), a locknut (28) is further installed on each adjusting bolt (27), each adjusting nut (26), each adjusting bolt (27) and each locknut (28) form a translation fine adjustment mechanism, and the left and right positions of the head sheave (13) can be finely adjusted through the adjusting bolts on the left side and the right side.

7. The energy-saving pumping unit using the spring storage to balance the up-stroke and down-stroke work according to claim 1, characterized in that: the power part A comprises a motor (6), a speed reducer (5) and a brake (4), the motor (6) is fixedly arranged on a speed reducer base (9) and used for providing power for the speed reducer, an input shaft and an output shaft of the speed reducer (5) respectively extend out of the left end and the right end, and the left end and the right end of the input shaft of the speed reducer (5) respectively extend out of the brake (4) and the motor (6).

8. The energy-saving pumping unit using spring storage to balance up-stroke and down-stroke work as claimed in claim 7, wherein: a speed reducer base (9) and a suspension beam (11) are fixedly arranged on an equipment foundation (8), a brake base (10) is fixedly arranged on the suspension beam (11), a speed reducer (5) is arranged on the speed reducer base (9), a brake (4) is fixedly arranged on the brake base (10), and a motor (6) is fixedly arranged on the speed reducer base (9).

9. The energy-saving pumping unit using spring storage to balance up-stroke and down-stroke work as claimed in claim 7, wherein: the motor (6) is a permanent magnet synchronous direct drive motor, and the brake (4) is an electromagnetic brake.

10. The energy-saving pumping unit using the spring storage to balance the up-stroke and down-stroke work according to claim 1, characterized in that: the length of the equipment foundation (8) is less than or equal to 5m, and the width of the equipment foundation is less than or equal to 2.6m.