A beam-type pumping unit foundation
By connecting two concrete foundations at the wellhead and using a design of connecting bolts and nuts, the problem of uneven stress on the foundation caused by ground subsidence was solved, ensuring the stable operation of the pumping unit, avoiding safety accidents, and having significant economic and social benefits.
Patent Information
- Application Number
- CN202521648030.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-05
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-05
AI Technical Summary
Uneven stress caused by ground subsidence on the wellhead surface can lead to deformation or fracture of the foundation of a beam pumping unit, posing a safety hazard and affecting the normal operation of the pumping unit.
The design using connecting bolts and nuts connects the two concrete foundations together at the wellhead. The cooperation between the outer and inner connecting plates ensures that the foundations are on the same plane, achieving uniform stress distribution.
It effectively prevents the foundation from sinking alone, avoids damage to the pumping unit base, ensures the reliable operation of the pumping unit, and avoids shutdown and overturning accidents, thus having significant economic and social benefits.
Smart Images
Figure CN224678736U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a wellhead surface device for oil extraction using a beam pumping unit in oilfields, and is a foundation for a beam pumping unit. Background Technology
[0002] Oil well pumping requires pumping units, most of which are beam pumping units. Beam pumping units are installed on a foundation, which is located at the wellhead. For ease of transport and hoisting, the foundation is composed of two assembled pieces. These two concrete foundation pieces are not connected at the wellhead surface. When the ground beneath the foundation collapses, the two concrete foundation pieces will become misaligned. This uneven stress on the pumping unit base installed on the concrete foundation can cause deformation, and in severe cases, breakage, rendering the pumping unit unusable and potentially leading to a tipping over. Summary of the Invention
[0003] The purpose of this invention is to design a walking beam type pumping unit foundation that can be connected as a whole at the wellhead, preventing damage to the pumping unit base due to the sinking of individual foundation sections caused by local ground subsidence, and ensuring the reliable use of the pumping unit.
[0004] The purpose of this utility model is achieved as follows: It includes a right foundation, an outer connecting plate, a right inner connecting plate, a left inner connecting plate, connecting bolts, connecting nuts, and a left foundation. The connecting bolts are T-bolts, and there are multiple connecting bolts. Half of the connecting bolts are on the right inner connecting plate, and the other half are on the left inner connecting plate. The bolt heads of the connecting bolts are inside, with the thread facing outwards. The right inner connecting plate and half of the connecting bolts are cast integrally with the left side of the right foundation, and the bolt heads of the connecting bolts are inside the right foundation. The left inner connecting plate and half of the connecting bolts are cast integrally with the right side of the left foundation. The bolt head is located inside the left foundation, and the left side of the right foundation abuts against the right side of the left foundation. The bolt holes of the outer connecting plate are fitted onto the connecting bolts. The outer connecting plate abuts against the right inner connecting plate and the left inner connecting plate. A connecting nut is installed on each connecting bolt. After the connecting nut is connected and tightened to the connecting bolt, the connecting nut is pressed against the outside of the outer connecting plate. The right inner connecting plate and connecting bolt are symmetrically arranged on the left side of the right foundation, and the left inner connecting plate and connecting bolt are symmetrically arranged on the right side of the left foundation. The two outer connecting plates are symmetrically arranged on the left side of the right foundation 1 and the right side of the left foundation 1.
[0005] The beneficial effects of this utility model are: two cement foundations can be easily and quickly connected into one on site; when the ground collapses, the two cement foundations support each other and remain on the same plane, so that the pumping unit base is evenly stressed and will not be damaged, ensuring the reliable operation of the pumping unit, avoiding pumping unit shutdown and overturning accidents, and having significant economic and social benefits. Attached Figure Description
[0006] Figure 1 This is an assembly view of an embodiment of the present utility model. Detailed Implementation
[0007] The following is an appendix Figure 1 The embodiments of this utility model will be described.
[0008] like Figure 1 As shown, the embodiment of this utility model includes a right foundation 1, an outer connecting plate 2, a right inner connecting plate 3, a left inner connecting plate 4, connecting bolts 5, connecting nuts 6, and a left foundation 7. The connecting bolts 5 are T-bolts, and there are multiple connecting bolts 5. Half of the connecting bolts 5 are on the right inner connecting plate 3, and half are on the left inner connecting plate 4. The bolt heads of the connecting bolts 5 are inside, with the threads facing outwards. The right inner connecting plate 3 and half of the connecting bolts 5 are cast integrally with the left side of the right foundation 1, with the bolt heads of the connecting bolts 5 inside the right foundation 1. The left inner connecting plate 4 and half of the connecting bolts 5 are cast integrally with the right side of the left foundation 7. The threads of the connecting bolts 5... The bolt head is located in the left foundation 7. The left side of the right foundation 1 abuts against the right side of the left foundation 7. The bolt hole of the outer connecting plate 2 is fitted onto the connecting bolt 5. The outer connecting plate 2 abuts against the right inner connecting plate 3 and the left inner connecting plate 4. A connecting nut 6 is installed on each connecting bolt 5. After the connecting nut 6 is connected and tightened to the connecting bolt 5, the connecting nut 6 abuts against the outside of the outer connecting plate 2. The right inner connecting plate 3 and the connecting bolt 5 are symmetrically arranged on the left side of the right foundation 1. The left inner connecting plate 4 and the connecting bolt 5 are symmetrically arranged on the right side of the left foundation (7). The two outer connecting plates 2 are symmetrically arranged on the left side of the right foundation 1 and the right side of the left foundation 7.
[0009] The right foundation 1 and the left foundation 7 are reinforced concrete.
[0010] The right inner connecting plate 3 and half of the connecting bolts 5 are cast into one piece with the left side of the right foundation 1, and the left inner connecting plate 4 and half of the connecting bolts 5 are cast into one piece with the right side of the left foundation 7. They are respectively hoisted to the ground at the wellhead, and then the right foundation 1 and the left foundation 7 are connected into one piece with the outer connecting plate 2 and the connecting nut 6. The installation is very convenient.
[0011] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A beam pumping unit foundation, comprising a right foundation (1), an outer connecting plate (2), a right inner connecting plate (3), a left inner connecting plate (4), connecting bolts (5), connecting nuts (6), and a left foundation (7), characterized in that: The connecting bolts (5) are T-bolts. There are multiple connecting bolts (5). Half of the connecting bolts (5) are on the right inner connecting plate (3), and half of the through connecting bolts (5) are on the left inner connecting plate (4). The bolt heads of the connecting bolts (5) are inside and the bolts are outward. The right inner connecting plate (3) and half of the connecting bolts (5) are cast together with the left side of the right foundation (1). The bolt heads of the connecting bolts (5) are inside the right foundation (1). The left inner connecting plate (4) and half of the connecting bolts (5) are cast together with the right side of the left foundation (7). The bolt heads of the connecting bolts (5) are inside the left foundation (7). The left side of the right foundation (1) abuts against the right side of the left foundation (7). The bolt holes of the connecting plate (2) are fitted onto the connecting bolts (5). The outer connecting plate (2) abuts against the right inner connecting plate (3) and the left inner connecting plate (4). A connecting nut (6) is installed on each connecting bolt (5). After the connecting nut (6) is connected and tightened to the connecting bolt (5), the connecting nut (6) abuts against the outside of the outer connecting plate (2). The right inner connecting plate (3) and the connecting bolt (5) are symmetrically arranged on the left side of the right foundation (1). The left inner connecting plate (4) and the connecting bolt (5) are symmetrically arranged on the right side of the left foundation (7). The two outer connecting plates (2) are symmetrically arranged on the left side of the right foundation (1) and the right side of the left foundation (7).