Hydraulic system driven pumping unit

CN224496404UActive Publication Date: 2026-07-14JIANGHAN OIL FIELD TIANTAI MECHANICAL & ELECTRICAL EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGHAN OIL FIELD TIANTAI MECHANICAL & ELECTRICAL EQUIP CO LTD
Filing Date
2025-09-22
Publication Date
2026-07-14

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Abstract

The utility model relates to pumping unit technical field, and disclose a kind of pumping unit of hydraulic system drive, solve the problem that the maintenance cost of high failure rate caused by complex structure and high energy consumption in the process of using existing pumping unit, it includes base, the top of one end of base is fixedly installed with hydraulic system, the top of base is fixedly installed with support seat in one side of hydraulic system, support seat is provided with beam top drive above, the bottom of beam top drive is installed with first bearing seat assembly, the bottom of first bearing seat assembly is fixedly installed with support frame, the one end of beam top drive is installed with horse head, the other end of beam top drive is fixedly installed with tail balance, the one end bottom of beam top drive close to horse head is installed with drive component, the one end bottom of beam top drive close to tail balance is installed with positioning assembly;The utility model makes pumping unit in the process of using, can reach the effect of simple structure and low energy consumption, and reduce its failure rate and maintenance cost, to reach better practicability.
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Description

Technical Field

[0001] This utility model belongs to the field of oil pumping unit technology, specifically a hydraulically driven oil pumping unit. Background Technology

[0002] Oil pumping units are key surface equipment used in oil extraction to extract crude oil. Commonly known as pumping units, their core function is to lift crude oil by mechanically driving a downhole pump. The working principle is that an electric motor drives a gearbox, which in turn drives a crank and a counterweight to move, ultimately driving the sucker rod to move up and down through the pumping head. However, existing oil pumping units are complex in structure, consume a lot of energy, and have a high failure rate, resulting in high maintenance costs, which makes it difficult to achieve better practicality. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a hydraulically driven oil pump, which effectively solves the problems of existing oil pumps having complex structure, high energy consumption, high failure rate leading to high maintenance costs, and thus not being able to achieve better practicality.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hydraulically driven pumping unit, comprising a base, a hydraulic system fixedly mounted on the top of one end of the base, a support fixedly mounted on one side of the hydraulic system and on the top of the base, a walking beam disposed above the support, a first bearing housing assembly mounted on the bottom of the walking beam, a support frame fixedly mounted on the bottom of the first bearing housing assembly, one bottom end of the support frame fixedly connected to the top of the base, and the other bottom end of the support frame fixedly connected to the top of the support base, a donkey head mounted on one end of the walking beam, a tail balance fixedly mounted on the other end of the walking beam, a drive assembly mounted on the bottom of the end of the walking beam near the donkey head, and the drive assembly fixedly mounted on the top of the base, and a positioning assembly mounted on the bottom of the end of the walking beam near the tail balance, and the positioning assembly fixedly mounted on the top of the support base.

[0005] Preferably, the drive assembly includes a hydraulic cylinder, which is fixedly installed on the top of the base. A second bearing housing assembly is installed on the top of the hydraulic cylinder, and a sliding sleeve is installed on the top of the second bearing housing assembly. A positioning crossbar is slidably installed inside the sliding sleeve. Connecting blocks are fixedly installed at both ends of the positioning crossbar, and the tops of the two connecting blocks are fixedly connected to the bottom of the walking beam.

[0006] Preferably, the positioning component includes a fixed cylinder, which is fixedly installed on the top of the support base. A movable frame is fixedly installed on the top of the fixed cylinder, and a walking beam is located inside the top of the movable frame. A sliding shaft is rotatably installed inside the top of the movable frame. A strip-shaped groove is opened through the inside of the walking beam, and the sliding shaft is slidably installed through the inside of the strip-shaped groove.

[0007] Preferably, each of the four corners of the base is fixedly equipped with a mounting base, and the mounting base has a through-hole.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] 1) During operation, through the interaction of the base, hydraulic system, support seat, walking beam, first bearing seat assembly, support frame, tail balance, donkey head, drive assembly and positioning assembly, the oil pumping unit can achieve the effect of simple structure and low energy consumption during use, and reduce its failure rate and maintenance cost, thereby facilitating better practicality.

[0010] 2) During operation, the interaction between the mounting base and the mounting holes facilitates the fixed installation of the base, making operation convenient and ensuring the stable operation of the entire pumping unit. Attached Figure Description

[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0012] In the attached diagram:

[0013] Figure 1 This is a schematic diagram of the structure of a hydraulically driven oil pump according to the present invention;

[0014] Figure 2 This is a schematic diagram of the drive component structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the positioning component structure of this utility model.

[0016] In the diagram: 1. Base; 2. Hydraulic system; 3. Support seat; 4. Walking beam; 5. First bearing seat assembly; 6. Support frame; 7. Donkey head; 8. Tail balance; 9. Drive assembly; 10. Positioning assembly; 11. Hydraulic cylinder; 12. Second bearing seat assembly; 13. Sliding sleeve; 14. Positioning crossbar; 15. Connecting block; 16. Fixed cylinder; 17. Movable frame; 18. Sliding shaft; 19. Strip groove; 20. Mounting seat; 21. Mounting hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] Example 1, by Figure 1 , Figure 2 and Figure 3 The present invention relates to a hydraulically driven oil pump, including a base 1, wherein mounting seats 20 are fixedly installed on the four corners of the base 1, and mounting holes 21 are provided through the interior of the mounting seats 20. In use, the interaction between the mounting seats 20 and the mounting holes 21 facilitates the fixed installation of the base 1, making operation convenient and ensuring that the entire oil pump can work stably.

[0019] A hydraulic system 2 is fixedly installed at one top end of the base 1. The hydraulic system 2 provides stable power output during operation, ensuring the stable operation of the entire pumping unit. A support base 3 is fixedly installed on one side of the hydraulic system 2, located at the top of the base 1. A walking beam 4 is positioned above the support base 3. A first bearing housing assembly 5 is installed at the bottom of the walking beam 4, providing support for the movement of the walking beam 4 and ensuring its stable operation. A support frame 6 is fixedly installed at the bottom of the first bearing housing assembly 5, with one bottom end of the support frame 6 fixedly connected to the top of the base 1, and the other bottom end of the support frame 6... The end is fixedly connected to the top of the support base 3. The support frame 6 can provide stable support for the first bearing housing assembly 5, ensuring the stability of the structure. One end of the walking beam 4 is equipped with a donkey head 7, and the other end of the walking beam 4 is fixedly equipped with a tail balance 8. The tail balance 8 enables the walking beam 4 to achieve better balance during movement, thereby ensuring that the pumping unit can work stably. The bottom of the end of the walking beam 4 near the donkey head 7 is equipped with a drive assembly 9, and the drive assembly 9 is fixedly installed on the top of the base 1. The bottom of the end of the walking beam 4 near the tail balance 8 is equipped with a positioning assembly 10, and the positioning assembly 10 is fixedly installed on the top of the support base 3.

[0020] The drive assembly 9 includes a hydraulic cylinder 11, which is fixedly installed on the top of the base 1. A second bearing housing assembly 12 is installed on the top of the hydraulic cylinder 11, and a sliding sleeve 13 is installed on the top of the second bearing housing assembly 12. The sliding sleeve 13 and the top of the hydraulic cylinder 11 are rotated through the second bearing housing assembly 12, which achieves support while maintaining a stable rotation effect, ensuring the stable operation of the structure. A positioning crossbar 14 is slidably installed inside the sliding sleeve 13. Connecting blocks 15 are fixedly installed at both ends of the positioning crossbar 14, and the tops of the two connecting blocks 15 are fixedly connected to the bottom of the walking beam 4.

[0021] The positioning assembly 10 includes a fixed cylinder 16, which is fixedly installed on the top of the support base 3. A movable frame 17 is fixedly installed on the top of the fixed cylinder 16, and the walking beam 4 is located inside the top of the movable frame 17. A sliding shaft 18 is rotatably installed inside the top of the movable frame 17. A strip groove 19 is opened through the inside of the walking beam 4, and the sliding shaft 18 is slidably installed inside the strip groove 19.

[0022] Working Principle: During operation, the mounting base 20 is first fixedly installed using mounting screws or anchoring rods that match the diameter of the mounting hole 21, thereby achieving the fixed installation of the entire pumping unit. Then, during use, the hydraulic cylinder 11 is activated to push the second bearing housing assembly 12 upward. The second bearing housing assembly 12 pushes the sliding sleeve 13 upward, and the sliding sleeve 13 drives the positioning crossbar 14 upward. The positioning crossbar 14 pushes the end of the walking beam 4 near the donkey head 7 upward through the connecting block 15. At the same time, the sliding sleeve 13 slides on the outside of the positioning crossbar 14. At this time, the walking beam 4 moves around the first bearing housing assembly 5 as the central axis. Simultaneously, the walking beam 4 slides on the outside of the sliding shaft 18 through the strip groove 19, and pushes the sliding shaft 18 towards... The sliding shaft 18 drives the support frame 6 to move downwards, and the support frame 6 drives the fixed cylinder 16 to retract, which ensures better stability of the walking beam 4 during movement. Then, the hydraulic cylinder 11 retracts, causing the end of the walking beam 4 near the donkey head 7 to move downwards, while the fixed cylinder 16 extends. This cycle repeats, causing the walking beam 4 to drive the donkey head 7 to move up and down reciprocally. The movement of the hydraulic cylinder 11 and the fixed cylinder 16 replaces the original structure of the electric motor driving the gearbox, driving the crank and balance weight to move, and finally driving the donkey head to work. This makes the pumping unit simple in structure and low in energy consumption during use, and reduces its failure rate and maintenance costs, thus facilitating better practicality.

Claims

1. A hydraulically driven pumping unit, comprising a base (1), characterized in that: A hydraulic system (2) is fixedly installed on the top of one end of the base (1). A support seat (3) is fixedly installed on one side of the hydraulic system (2) and on the top of the base (1). A walking beam (4) is provided above the support seat (3). A first bearing seat assembly (5) is installed at the bottom of the walking beam (4). A support frame (6) is fixedly installed at the bottom of the first bearing seat assembly (5). One end of the bottom of the support frame (6) is fixedly connected to the top of the base (1). The other end of the bottom of the support frame (6) is fixedly connected to the top of the support seat (3). A donkey head (7) is installed at one end of the walking beam (4). A tail balance (8) is fixedly installed at the other end of the walking beam (4). A drive assembly (9) is installed at the bottom of the end of the walking beam (4) near the donkey head (7). The drive assembly (9) is fixedly installed on the top of the base (1). A positioning assembly (10) is installed at the bottom of the end of the walking beam (4) near the tail balance (8). The positioning assembly (10) is fixedly installed on the top of the support seat (3).

2. The hydraulically driven oil pumping unit according to claim 1, characterized in that: The drive assembly (9) includes a hydraulic cylinder (11), which is fixedly installed on the top of the base (1). A second bearing housing assembly (12) is installed on the top of the hydraulic cylinder (11), and a sliding sleeve (13) is installed on the top of the second bearing housing assembly (12). A positioning crossbar (14) is slidably installed inside the sliding sleeve (13). A connecting block (15) is fixedly installed at both ends of the positioning crossbar (14), and the tops of the two connecting blocks (15) are fixedly connected to the bottom of the walking beam (4).

3. The hydraulically driven oil pumping unit according to claim 1, characterized in that: The positioning component (10) includes a fixed cylinder (16), which is fixedly installed on the top of the support base (3). A movable frame (17) is fixedly installed on the top of the fixed cylinder (16), and a walking beam (4) is located inside the top of the movable frame (17). A sliding shaft (18) is rotatably installed inside the top of the movable frame (17). A strip groove (19) is opened through the inside of the walking beam (4), and the sliding shaft (18) is slidably installed inside the strip groove (19).

4. The hydraulically driven oil pumping unit according to claim 1, characterized in that: The base (1) is fixedly installed with mounting bases (20) on all four corners, and mounting holes (21) are opened through the interior of the mounting bases (20).