A conveniently installed crossbeam structure for an oil pump and an installation and maintenance method thereof

Abstract

The present invention discloses a conveniently installed oil pumping unit crossbeam structure and an installation and maintenance method, which relate to the field of oil extraction. The oil pumping unit crossbeam hook comprises a crossbeam connecting portion and a tail shaft accommodating portion, the crossbeam connecting portion and the tail shaft accommodating portion are connected as a whole, and the inner surface of the tail shaft accommodating portion forms an accommodating cavity that can accommodate the tail shaft passing through. The present invention is very convenient to install, saves a lot of installation man-hours, saves time, effort, and labor. When installing and repairing the oil pumping unit in the oil field, it is not necessary to disassemble the tail bearing assembly from the walking beam and install it with the crossbeam, and the crossbeam can be directly hung on the tail bearing seat assembly.

Description

Technical Field

[0001] The invention relates to the field of petroleum exploitation, and in particular to an oil pumping unit crossbeam hook, an oil pumping unit crossbeam and an oil pumping unit, and an installation and maintenance method thereof. Background Art

[0002] The oil pump is the mainstream equipment commonly used in mechanical oil production. With the development of oil extraction equipment, the requirements for oil pumps are getting higher and higher. Not only are they required to be energy-saving and safe, but they are also required to be easy and quick to install and maintain.

[0003] The installation process of the existing oil pumping unit, the bearing support, the tail bearing seat assembly and the crossbeam is as follows: first remove the clamping bolts on the bearing support, drive the bevel iron into the notch position of the bearing support, expand the bearing support mounting hole, install the bearing support on the tail bearing seat assembly, and then hoist the tail bearing seat assembly and the bearing support together to the crossbeam body, adjust the position of the bearing support on the tail shaft to align with the bolt mounting holes on the crossbeam body, and multiple adjustments are required to meet the alignment requirements. After aligning the bolt holes, install the bolts, nuts, and hard gaskets, and use a torque wrench to tighten the nuts symmetrically. Finally, remove the bevel iron, install the clamping bolts and nuts, and use a torque wrench to tighten the nuts. The structure in which the bearing support 4 is connected to the crossbeam body 5 by bolts 1, nuts 3 and gaskets 2 is shown as follows. Figure 1 shown.

[0004] The above beam has the following defects:

[0005] ①The installation is complicated and difficult to align, and the installation time is relatively long.

[0006] ② High manufacturing cost. The bearing support is made of ductile iron and requires 8 sets of bolts, nuts and hard washers for fastening during installation.

[0007] ③High material consumption and heavy beam make the oil pump heavy. Summary of the invention

[0008] In view of the above-mentioned defects, the present invention provides a pumping unit crossbeam hook, which can quickly install the tail bearing seat assembly and the crossbeam as one, and can also quickly separate the crossbeam from the tail bearing seat assembly, making installation and maintenance extremely convenient.

[0009] The technical solution is: a pumping unit beam hook, the pumping unit beam hook comprises a beam connecting portion and a tail shaft accommodating portion, the beam connecting portion and the tail shaft accommodating portion are connected as a whole, and the inner surface of the tail shaft accommodating portion forms an accommodating cavity that can accommodate the tail shaft passing through.

[0010] Through the design of the pumping unit crossbeam hook, the installation is completed by directly hanging the crossbeam hook on the tail bearing seat assembly, which is extremely convenient.

[0011] Preferably, the pumping unit crossbeam hook is a hook made by gas cutting of steel plates.

[0012] Preferably, a guide surface is provided at the lower end of the inner surface of the tail shaft accommodating portion, and the center A of the guide surface is located to the lower right of the center B of the inner surface.

[0013] Preferably, the pumping unit crossbeam hook is further provided with a limiting portion, and the limiting portion is located between the crossbeam connecting portion and the tail shaft accommodating portion.

[0014] After the limiting part is provided, when the oil pump is in operation, the tail shaft can be limited in the accommodating cavity by the baffle plate and the connecting piece installed in the middle part.

[0015] Preferably, the inner surface of the limiting portion consists of a vertical wall, an inclined wall and a groove, and a hole is opened on the vertical wall.

[0016] The invention also provides a pumping unit cross beam.

[0017] The technical solution is: a pumping unit beam, comprising a beam body, the pumping unit beam also comprising two pumping unit beam hooks installed on the beam body, the pumping unit beam hooks are the above-mentioned pumping unit beam hooks.

[0018] Preferably, the two oil pumping unit cross beam hooks are welded to the cross beam body.

[0019] Preferably, the crossbeam body includes a top plate, a first vertical plate, a first inclined plate, a bottom plate, a second inclined plate, a second vertical plate and a web. The top plate and the bottom plate are parallel, the first vertical plate and the second vertical plate are parallel, the first inclined plate and the second inclined plate are symmetrical to each other, and the web is respectively connected to the top plate, the first vertical plate, the first inclined plate, the bottom plate, the second inclined plate and the second vertical plate. The thickness neutral plane of the web coincides with the center plane of the top plate and the bottom plate in the width direction. The top plate, the bottom plate and the web form an H-shaped steel member. The top plate, the first vertical plate, the first inclined plate, the bottom plate, the second inclined plate, the second vertical plate and the web 24 enclose a front space opened in the front and a rear space opened in the rear.

[0020] Preferably, at least one reinforcement member is provided in the space, and one end of each reinforcement member is connected to the top plate, and the other end is connected to the bottom plate.

[0021] The invention also provides an oil pumping unit.

[0022] The technical solution is: an oil pumping unit, including an oil pumping unit crossbeam and a tail bearing assembly, the tail bearing assembly includes a tail shaft, the oil pumping unit crossbeam is the above-mentioned oil pumping unit crossbeam, and two oil pumping unit crossbeam hooks are respectively hung on the two ends of the tail shaft.

[0023] Preferably, the oil pump further comprises a limit baffle, which cooperates with the limit portion.

[0024] The invention also provides a method for convenient installation and maintenance of the oil pump.

[0025] The technical solution is: a method for convenient installation and maintenance of an oil pump. The method adopts the above-mentioned oil pump. During installation, there is no need to remove the tail bearing assembly from the walking beam and install it with the crossbeam. During installation, the crossbeam is directly hung on the tail bearing seat assembly, and the limit block is fixed with a connecting piece.

[0026] Beneficial effects of the present invention:

[0027] The invention is very convenient to install, saves a lot of installation time, saves time, effort and labor. When installing and repairing the pumping unit in the oil field, it is not necessary to remove the tail bearing assembly from the walking beam and install it with the crossbeam. The crossbeam can be directly hung on the tail bearing seat assembly and the stopper can be fixed with bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the background technology of the present invention;

[0029] Figure 2 This is a schematic diagram of the crossbeam hook structure of the oil pumping unit of the present invention;

[0030] Figure 3 for Figure 2 side view schematic diagram;

[0031] Figure 4 It is a schematic diagram of the overall structure of the cross beam of the oil pumping unit of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the pumping unit cross beam and tail bearing assembly of the present invention;

[0033] Figure 6 yes Figure 5 side view schematic diagram;

[0034] Figure 2-6 In the figure, the pumping unit crossbeam hook 1, the tail shaft accommodating part 11, the crossbeam connecting part 12, the inner surface 13, the accommodating cavity 14, the hole 15, the groove 16, the crossbeam body 2, the top plate 20, the first vertical plate 21, the first inclined plate 22, the bottom plate 23, the web 24, the second inclined plate 25, the second vertical plate 26, the front space 27, the reinforcement 28, the rear space 29, the tail bearing assembly 3, the tail shaft 31, the connecting part 4, and the limit baffle 5. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "back", "top", "bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the inventive product is usually placed when in use, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Please refer to Figure 2-3 , Figure 2 This is a schematic diagram of the crossbeam hook structure of the oil pumping unit of the present invention. Figure 3 for Figure 2 Side view schematic.

[0039] A pumping unit crossbeam hook 1 includes a crossbeam connecting portion 12 and a tail shaft accommodating portion 11, wherein the crossbeam connecting portion 12 and the tail shaft accommodating portion 11 are connected as one body, and an inner surface 13 of the tail shaft accommodating portion 11 forms an accommodating cavity 14 through which the tail shaft can pass. It should be understood that the size of the accommodating cavity 14 matches the size of the tail shaft.

[0040] Furthermore, in order to facilitate the hooking of the pumping unit crossbeam onto the tail shaft, a guide surface 17 is provided at the lower end of the inner surface 13 , and the center A of the guide surface 17 is located to the lower right of the center B of the inner surface 13 .

[0041] Furthermore, in order to limit the tail shaft in the accommodating chamber 14 , the pumping unit crossbeam hook is further provided with a limiting portion, which is located between the crossbeam connecting portion 12 and the tail shaft accommodating portion 11 .

[0042] Further, in a preferred embodiment of the present invention, the inner surface of the limiter is composed of a vertical wall, an inclined wall and a groove 16, and the vertical wall is provided with a hole 15. The groove 16 is used to place the baffle, and the hole 15 is used to pass a connecting member, which may be a bolt or other connecting member.

[0043] Furthermore, in a preferred embodiment of the present invention, the pumping unit crossbeam hook 1 is made of steel plates cut by gas cutting, which effectively reduces the cost.

[0044] Based on the above-mentioned pumping unit cross beam hook 1, the present invention also provides a pumping unit cross beam.

[0045] Please refer to Figure 4 , Figure 4 The present invention is a schematic structural diagram of a pumping unit crossbeam.

[0046] A pumping unit cross beam comprises a cross beam body 2 and two pumping unit cross beam hooks installed on the cross beam body 2, wherein the pumping unit cross beam hooks are the above-mentioned pumping unit cross beam hooks 1.

[0047] Furthermore, the two oil pumping unit beam hooks 1 can be fixedly installed on the beam body 2, or can be detachably installed on the beam body 2. In a preferred embodiment of the present invention, in order to reduce manufacturing costs, the two oil pumping unit beam hooks 1 are installed on the beam body 2 by welding.

[0048] Furthermore, the crossbeam body 2 may be a crossbeam in the background technology, or a crossbeam in other oil pumping units.

[0049] Furthermore, in a preferred embodiment of the present invention, the crossbeam body 2 includes a top plate 20, a first vertical plate 21, a first inclined plate 22, a bottom plate 23, a second inclined plate 25, a second vertical plate 26 and a web 24, the top plate 20 and the bottom plate 23 are parallel, the first vertical plate 21 and the second vertical plate 26 are parallel, the first inclined plate 22 and the second inclined plate 25 are symmetrical to each other, the web 24 is respectively connected to the top plate 20, the first vertical plate 21, the first inclined plate 22, the bottom plate 23, the second inclined plate 25 and the second vertical plate 26, the thickness neutral plane of the web 24 coincides with the center plane of the top plate 20 and the bottom plate 23 in the width direction, the top plate 20, the bottom plate 23 and the web 24 form an H-shaped steel member, the top plate 20, the first vertical plate 21, the first inclined plate 22, the bottom plate 23, the second inclined plate 25, the second vertical plate 26 and the web 24 surround a front space 27 opened in the front and a rear space 29 opened in the rear. The crossbeam body 2 formed in this way not only saves materials and maximizes the utilization rate of materials, but also saves space, reduces deadweight, and improves the usability of the structure. More importantly, it also improves the bearing capacity of the structure and makes the structure safer.

[0050] Furthermore, in a preferred embodiment of the present invention, in order to improve the bearing capacity of the beam body 2, one or more reinforcement members 28 are provided in the space 27, and each reinforcement member 28 is connected to the top plate 20 at one end and to the bottom plate 23 at the other end.

[0051] Based on the above-mentioned pumping unit cross beam, the present invention also provides a pumping unit.

[0052] Please refer to Figure 5-6 , Figure 5 This is a schematic diagram of the connection structure between the cross beam and the tail bearing assembly of the oil pumping unit of the present invention. Figure 6 for Figure 5 Side view.

[0053] A pumping unit includes a pumping unit crossbeam and a tail bearing assembly 3, wherein the tail bearing assembly 3 includes a tail shaft 31, the pumping unit crossbeam is the above-mentioned pumping unit crossbeam, and the pumping unit crossbeam hooks 1 are respectively hung on both ends of the tail shaft 31.

[0054] Furthermore, in a preferred embodiment of the present invention, the oil pumping unit further comprises a limit baffle 5, the lower end of which is fitted with the groove, a connecting member hole is provided on the limit baffle 5, and the limit baffle 5 is fixed to the oil pumping unit crossbeam hook 1 through the connecting member 4. The connecting member 4 can be a bolt or other connecting member.

[0055] The pumping unit crossbeam and tail bearing assembly 3 of the present invention are very convenient to install. When installing or repairing the pumping unit in the oil field, it is not necessary to remove the tail bearing assembly from the walking beam and install it with the crossbeam. The crossbeam can be directly hung on the tail bearing seat assembly and the limit block can be fixed with bolts. A large amount of installation man-hours can be saved, which saves time, effort and labor.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pumping unit beam hook, characterized in that: The pumping unit crossbeam hook comprises a crossbeam connecting portion and a tail shaft accommodating portion, the crossbeam connecting portion and the tail shaft accommodating portion are connected as a whole, and the inner surface of the tail shaft accommodating portion forms an accommodating cavity capable of accommodating the tail shaft passing through; The pumping unit crossbeam hook is a hook made of steel plate gas-cut; or A guide surface is provided at the lower end of the inner surface of the tail shaft accommodation portion, and the center A of the guide surface is located to the right below the center B of the inner surface; The pumping unit crossbeam hook is also provided with a limiting portion, which is located between the crossbeam connecting portion and the tail shaft accommodating portion; The pumping unit cross beam comprises a cross beam body, and the pumping unit cross beam further comprises two pumping unit cross beam hooks installed on the cross beam body; the two pumping unit cross beam hooks are welded to the cross beam body; The cross beam body comprises a top plate, a first vertical plate, a first inclined plate, a bottom plate, a second inclined plate, a second vertical plate and a web plate, the top plate and the bottom plate are parallel, the first vertical plate and the second vertical plate are parallel, the first inclined plate and the second inclined plate are symmetrical to each other, the web plate is respectively connected to the top plate, the first vertical plate, the first inclined plate, the bottom plate, the second inclined plate and the second vertical plate, the thickness neutral plane of the web plate coincides with the center plane of the top plate and the bottom plate in the width direction, the top plate, the bottom plate and the web plate form an H-shaped steel member, the top plate, the first vertical plate, the first inclined plate, the bottom plate, the second inclined plate, the second vertical plate and the web plate enclose a front space with a front opening and a rear space with a rear opening; More than one reinforcing member is also arranged in the space, and one end of each reinforcing member is connected to the top plate, and the other end is connected to the bottom plate.

2. The pumping unit crossbeam hook according to claim 1, characterized in that: The inner surface of the limiting part is composed of a vertical wall, an inclined wall and a groove, and a hole is opened on the vertical wall.

3. A pumping unit, comprising a pumping unit crossbeam and a tail bearing assembly, wherein the tail bearing assembly comprises a tail shaft, characterized in that: The pumping unit cross beam is the pumping unit cross beam as described in any one of claims 1-2, and two pumping unit cross beam hooks are respectively hung on the two ends of the tail shaft; the pumping unit also includes a limit baffle, which cooperates with the limit part.

4. A method for convenient installation and maintenance of an oil pump, the method adopts the oil pump described in claim 3, and during installation, there is no need to remove the tail bearing assembly from the walking beam and install it with the crossbeam. During installation, the crossbeam is directly hung on the tail bearing seat assembly, and the limit block is fixed with a connecting piece.

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