CN219492563U

CN219492563U - Crankcase housing and frame thereof

Info

Publication number: CN219492563U
Application number: CN202320267811.2U
Authority: CN
Inventors: 李晓斌; 贾作鑫; 王继鑫; 张树林; 李朋; 菅保国
Original assignee: Yantai Jereh Petroleum Equipment and Technologies Co Ltd
Current assignee: Yantai Jereh Petroleum Equipment and Technologies Co Ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-08-08
Anticipated expiration: 2033-02-17

Abstract

The application belongs to the technical field of crankcase manufacturing, and particularly relates to a crankcase shell and a frame thereof. The frame of crankcase casing includes the riser that a plurality of intervals set up, is equipped with supporting member between two adjacent risers, and supporting member's both ends link to each other with two adjacent riser welding respectively, and at least one supporting member's at least one end passes through the connecting piece with the riser and links to each other, and in the riser was located to the first end of connecting piece to/or, the second end of connecting piece was located in the supporting member. In addition to being connected through the welding seam, the supporting member and the vertical plate can be connected through the connecting piece, and in the operation process of the plunger pump, the connecting piece can bear a certain load, so that the load acting on the welding seam between the vertical plate and the supporting member can be reduced, the risk of welding seam cracking is reduced, the reliability of the power end of the plunger pump is improved, and the service life of the power end of the plunger pump is prolonged.

Description

Crankcase housing and frame thereof

Technical Field

The application belongs to the technical field of crankcase manufacturing, and particularly relates to a crankcase shell and a frame thereof.

Background

Plunger pumps are commonly used in well cementing, acidizing and fracturing operations as a core component of oilfield operations. Along with the increase of the difficulty and the operation intensity of oilfield exploitation, the plunger pump is developing towards high-intensity operation and heavy load, and the power end of the plunger pump is used as an important component for converting kinetic energy and driving the plunger to move, and the reliability is a key for ensuring the stable and reliable operation of the plunger pump.

The power end shell is a main bearing piece of the power end of the plunger pump and comprises a crankcase shell, wherein the crankcase shell comprises a plurality of vertical plates arranged at intervals, a supporting member is arranged between every two adjacent vertical plates, and the two adjacent vertical plates are connected through the supporting member in a welding way, that is to say, the two adjacent vertical plates are connected together through welding seams between the vertical plates and the supporting member. In the operation process of the plunger pump, the welding line of the crankcase shell can bear larger load, so that in the continuous use process of the plunger pump, the welding line between the vertical plate and the supporting member can be cracked, the reliability of the power end of the plunger pump can be reduced, and the service life of the power end of the plunger pump is shortened.

Disclosure of Invention

It is an object of embodiments of the present application to provide a crankcase housing and a frame thereof, which can reduce the risk of cracking of a weld between a riser and a support member.

In order to solve the technical problems, the application is realized as follows:

in a first aspect, embodiments of the present application provide a frame of a crankcase housing, including a plurality of risers that the interval set up, be equipped with supporting member between two adjacent risers, supporting member's both ends link to each other with two adjacent riser welding respectively, and at least one supporting member's at least one end passes through the connecting piece with the riser and links to each other, and in the riser was located to the first end of connecting piece to/or, supporting member was located to the second end of connecting piece.

In a second aspect, an embodiment of the present application provides a crankcase housing, including an upper cover plate, a lower cover plate, a front end plate, a rear end plate, and a frame as described above, where the upper cover plate is disposed above the frame, the lower cover plate is disposed below the frame, the front end plate is disposed in front of the frame, and the rear end plate is disposed behind the frame.

In this embodiment of the application, at least one end of at least one support member passes through the connecting piece with adjacent riser and links to each other, and the first end of connecting piece is located in the riser, the second end of connecting piece links to each other with support member this moment, and/or, the second end of connecting piece is located in the support member, the first end of connecting piece links to each other with the riser this moment, because the connecting piece has certain bending strength and shear strength, consequently set up the bending strength and the shear strength of connecting piece multiplicable crankcase housing's frame between riser and support member. Therefore, the supporting member and the vertical plate are connected through the connecting piece except the welding seam, and in the operation process of the plunger pump, the connecting piece can bear a certain load, so that the load acting on the welding seam between the vertical plate and the supporting member can be reduced, the risk of welding seam cracking is reduced, the reliability of the power end of the plunger pump is improved, and the service life of the power end of the plunger pump is prolonged.

Drawings

Fig. 1 is a schematic structural view of a riser disclosed in an embodiment of the present application;

FIG. 2 is a schematic view illustrating assembly of a riser and a bearing according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a position between two adjacent risers according to an embodiment of the disclosure;

FIG. 4 is a schematic view of an assembly of two adjacent risers and support members disclosed in an embodiment of the disclosure;

FIG. 5 is a schematic view, partially in section, of a frame disclosed in an embodiment of the present application;

FIG. 6 is a schematic view, partially in section, of a frame disclosed in another embodiment of the present application;

FIG. 7 is a schematic view of a support member integrally formed with a connector according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural view of a frame disclosed in an embodiment of the present application;

fig. 9 is a schematic structural view of a crankcase housing disclosed in an embodiment of the present application.

Reference numerals illustrate:

100-vertical plate, 110-first connecting hole, 120-second positioning hole, 130-mounting hole, 200-connecting piece, 300-supporting member, 310-supporting piece, 311-second connecting hole, 410-upper cover plate, 420-front end plate, 500-positioning piece, 600-bearing.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings of the embodiments of the present application, and it is apparent that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The crankcase housing and the frame thereof provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.

As shown in fig. 1 to 8, the embodiment of the present application discloses a frame of a crankcase housing, including a plurality of vertical plates 100 disposed at intervals. Alternatively, the vertical plate 100 is provided with a mounting hole 130, the mounting hole 130 penetrates the vertical plate 100 in the thickness direction of the vertical plate 100, the mounting hole 130 is used for mounting the bearing 600, and the bearing 600 can be matched with the crankshaft. The plurality of vertical plates 100 may be disposed at intervals in the axial direction of the mounting hole 130.

A support member 300 is disposed between two adjacent vertical plates 100, and both ends of the support member 300 are respectively welded to the two adjacent vertical plates 100, that is, a first end of the support member 300 is welded to the vertical plate 100 adjacent thereto, and a second end of the support member 300 is also welded to the vertical plate 100 adjacent thereto, where the vertical plate 100 adjacent to the first end of the support member 300 and the vertical plate 100 adjacent to the second end of the support member 300 are two vertical plates 100 positioned on both sides of the support member 300 and adjacent thereto.

At least one end of the at least one support member 300 is connected to the riser 100 through a connector 200, a first end of the connector 200 being disposed within the riser 100 and/or a second end of the connector 200 being disposed within the support member 300. Alternatively, the connector 200 may be a pin, a threaded connector, a rivet, or the like.

In this embodiment, at least one end of at least one supporting member 300 is connected to an adjacent vertical plate 100 through a connecting piece 200, and a first end of the connecting piece 200 is disposed in the vertical plate 100, at this time, a second end of the connecting piece 200 is connected to the supporting member 300, and/or a second end of the connecting piece 200 is disposed in the supporting member 300, at this time, a first end of the connecting piece 200 is connected to the vertical plate 100, and since the connecting piece 200 has a certain bending strength and shear strength, the bending strength and shear strength of the frame of the crankcase housing can be increased by disposing the connecting piece 200 between the vertical plate 100 and the supporting member 300. Therefore, the supporting member 300 and the vertical plate 100 can be connected through the connecting piece 200 in addition to the welded joint, and the connecting piece 200 can bear a certain load in the operation process of the plunger pump, so that the load acting on the welded joint between the vertical plate 100 and the supporting member 300 can be reduced, the risk of cracking the welded joint is reduced, the reliability of the power end of the plunger pump is improved, and the service life of the power end of the plunger pump is prolonged.

In addition, the connector 200 is provided between the support member 300 and the vertical plate 100, so that the support member 300 and the vertical plate 100 can be positioned and matched, and the dimensional accuracy of the frame of the crankcase housing can be improved.

In an alternative embodiment, the side of the vertical plate 100 facing the connector 200 is provided with a first connection hole 110, the side of the support member 300 facing the connector 200 is provided with a second connection hole 311, the first end of the connector 200 is disposed in the first connection hole 110, and the second end of the connector 200 is disposed in the second connection hole 311. In this embodiment, the connecting piece 200 is an independent component, that is, the connecting piece 200 and the supporting member 300 are in a split structure, and the connecting piece 200 and the vertical plate 100 are in a split structure, so that the vertical plate 100 and the supporting member 310 are manufactured conveniently.

If two ends of each supporting member 300 are connected to the adjacent vertical plates 100 through the connecting piece 200, at this time, two ends of each supporting member 300 are provided with the second connecting holes 311, and one surface of each vertical plate 100 facing the supporting member 300 is provided with the first connecting holes 110, that is, only one surface of the vertical plate 100 located at two ends of the frame may be provided with the first connecting holes 110, and two surfaces of the other vertical plates 100 are provided with the first connecting holes 110. In this case, the assembly process of the frame is as follows, the first end of the first connector 200 is disposed in the first connection hole 110 of the first riser 100, where the first riser 100 is the riser 100 located at one end of the frame; fitting the second coupling hole 311 of one side of the first supporting member 300 to the second end of the first coupling 200; a first end of the second connector 200 is disposed in the second connection hole 311 of the other side of the first supporting member 300; fitting the first coupling hole 110 of one side of the second riser 100 to the second end of the second coupling member 200; the first end of the third coupling member 200 is disposed in the first coupling hole 110 of the other side of the second riser 100 … …, and is thus circulated until the assembly of the frame is completed. The assembly steps of the frame are not limited, and the frame can be assembled from one end to the other end of the frame, and can also be assembled from the middle to the two ends of the frame.

Alternatively, both ends of the connector 200 may be welded to the riser 100 and the support member 300, respectively, so that it is inconvenient to take out the connector 200 from the first connection hole 110 or the second connection hole 311 after the connector 200, the support member 300 or the riser 100 is damaged, and thus the connector 200, the support member 300 or the riser 100 cannot be individually replaced when repairing the frame, and the connector 200, the support member 300 and the riser 100 need to be integrally replaced, which increases the maintenance cost. In an alternative embodiment, the first end of the connector 200 is in interference fit or transition fit with the first connecting hole 110, so that the connection strength between the first end of the connector 200 and the first connecting hole 110 can be ensured, and after the connector 200 or the vertical plate 100 is damaged, the first end of the connector 200 can be taken out from the first connecting hole 110, and the connector 200 or the vertical plate 100 can be replaced independently without integral replacement of the connector 200 and the vertical plate 100, so that the maintenance cost can be reduced; and/or, the second end of the connector 200 is in interference fit or transition fit with the second connection hole 311, so that the connection strength between the second end of the connector 200 and the second connection hole 311 can be ensured, and after the connector 200 or the supporting member 300 is damaged, the second end of the connector 200 can be taken out from the second connection hole 311, and the connector 200 or the supporting member 300 can be independently replaced without integrally replacing the connector 200 and the supporting member 300, so that the maintenance cost can be reduced.

In an alternative embodiment, the connector 200 is integrally formed with the riser 100, and the side of the support member 300 facing the connector 200 is provided with the second connection hole 311, and the second end of the connector 200 is disposed in the second connection hole 311. In the embodiment of the application, the connecting piece 200 and the vertical plate 100 are integrally formed, so that the structural strength of the vertical plate 100 can be increased, the risk of damage of the vertical plate 100 under the action of external force is reduced, and the structural strength of the frame is increased; in addition, compared with the previous embodiment, after the connecting piece 200 is integrally formed with the vertical plate 100, the connecting piece 200 is not required to be assembled to the vertical plate 100 in the process of assembling the frame, so that the assembling process of the frame is reduced, and the assembling difficulty of the frame is reduced.

In an alternative embodiment, referring to fig. 6 to 7, the connecting piece 200 and the supporting member 300 are integrally formed, a first connecting hole 110 is formed on a surface of the riser 100 facing the connecting piece 200, and a first end of the connecting piece 200 is disposed in the first connecting hole 110. In the embodiment of the application, the connector 200 and the supporting member 300 are integrally formed, so that the structural strength of the supporting member 300 can be increased, the risk of damage to the supporting member 300 under the action of external force is reduced, and the structural strength of the frame is increased; in addition, compared with the previous embodiment, after the connecting piece 200 and the supporting member 300 are integrally formed, in the process of assembling the frame, the supporting member 300 is not required to be assembled to the connecting piece 200, or the connecting piece 200 is required to be assembled to the supporting member 300, so that the assembling process of the frame is reduced, and the assembling difficulty of the frame is reduced. The present embodiment may be combined with the following scheme in which the support member 300 includes a plurality of supports 310 spaced around the edge of the riser 100, at least one of the supports 310 being integrally formed with the connector 200.

Alternatively, the number of the support members 300 may be one, and the support members 300 are disposed around the edge of the riser 100, that is, the support members 300 are continuous members disposed around the edge of the riser 100, such as the support members 300 may be ring-shaped or U-shaped, in which case the support members 300 would consume more material to manufacture. In an alternative embodiment, the support member 300 includes a plurality of support pieces 310 spaced around the edges of the vertical plates 100, both ends of the support pieces 310 are welded to the two vertical plates 100, respectively, and at least one end of at least one support piece 310 is connected to the vertical plate 100 through the connection member 200. In this embodiment, the supporting member 300 includes a plurality of supporting pieces 310 spaced around the edge of the vertical plate 100, and a plurality of connection points are formed between two adjacent vertical plates 100, so that the connection strength between two adjacent vertical plates 100 is high; further, the support member 300 of the present embodiment includes a plurality of the supports 310 arranged at intervals, that is, the support member 300 is not a continuous member, and thus less material is required for manufacturing the support member 300 of the present embodiment. The shape of the support 310 is not limited in this application, and the support 310 may be plate-shaped, rod-shaped, or the like.

As shown in fig. 9, the embodiment of the application further discloses a crankcase housing, which includes an upper cover plate 410, a lower cover plate, a front end plate 420, a rear end plate, and a frame according to any of the foregoing embodiments, wherein the upper cover plate 410 is disposed above the frame, the lower cover plate is disposed below the frame, the front end plate 420 is disposed in front of the frame, and the rear end plate is disposed behind the frame. Alternatively, the upper cover plate 410, the lower cover plate, the front end plate 420, and the rear end plate may be welded to the frame, or the upper cover plate 410, the lower cover plate, the front end plate 420, and the rear end plate may be connected to the frame by the screw connection 200.

In an alternative embodiment, a spacer 500 is provided between at least one of the upper cover plate 410, the lower cover plate, the front end plate 420, and the rear end plate and the frame to position at least one of the upper cover plate 410, the lower cover plate, the front end plate 420, and the rear end plate in engagement with the frame. For convenience of description, the upper cover plate 410, the lower cover plate, the front end plate 420, and the rear end plate are referred to as profile members, and the spacers 500 may be provided between the profile members and the vertical plates 100 or between the profile members and the support members 300. If the positioning member 500 is not provided, the position of the exterior member needs to be adjusted several times when the exterior member is assembled, so that the mounting accuracy between the exterior member and the frame can be ensured, which requires a long assembly time. While the present embodiment is provided with the positioning member 500, the exterior part can be rapidly assembled to the frame while ensuring the mounting accuracy between the exterior part and the frame, thereby saving the assembly time.

In an alternative embodiment, at least one of the upper cover plate 410, the lower cover plate, the front end plate 420, and the rear end plate is provided with a first positioning hole on a side facing the frame, the frame is provided with a second positioning hole 120 opposite to the first positioning hole, a first end of the positioning member 500 is disposed in the first positioning hole, and a second end of the positioning member 500 is disposed in the second positioning hole 120. In this embodiment, the positioning member 500 is an independent component, that is, a split structure is formed between the positioning member 500 and the frame, and a split structure is formed between the positioning member 500 and the profile component, so that the frame and the profile component can be manufactured conveniently.

Alternatively, both ends of the positioning member 500 may be welded to the frame and the exterior part, respectively, so that it is inconvenient to take out the positioning member 500 from the first and second positioning holes 120 after the positioning member 500 or the exterior part is damaged, and thus the positioning member 500 or the exterior part cannot be replaced alone when the crankcase housing is repaired, and the positioning member 500 and the exterior part need to be replaced integrally, which increases the maintenance cost. In an alternative embodiment, the first end of the positioning member 500 is an interference or transition fit with the first positioning aperture; so can guarantee the joint strength between first end and the first locating hole of setting element 500, and after setting element 500 or appearance part damage, can take out setting element 500 or appearance part alone can be changed to the first end of setting element 500 from first locating hole, and need not to carry out whole change to setting element 500 and appearance part, so can reduce cost of maintenance.

And/or, the second end of the positioning member 500 is interference fit or transition fit with the second positioning hole 120. So can guarantee the joint strength between the second end of setting element 500 and second locating hole 120, and after setting element 500 or appearance part damage, can take out the second end of setting element 500 from second locating hole 120, change setting element 500 or appearance part alone can, and need not to carry out whole change to setting element 500 and appearance part, so can reduce cost of maintenance.

In the embodiments described above, the differences between the embodiments are mainly described, and as long as there is no contradiction between the different optimization features between the embodiments, the different optimization features may be combined to form a better embodiment, and in consideration of brevity of line text, the description is omitted here. The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A frame of a crankcase shell is characterized by comprising a plurality of vertical plates (100) which are arranged at intervals, wherein a supporting member (300) is arranged between two adjacent vertical plates (100), two ends of the supporting member (300) are respectively welded with two adjacent vertical plates (100), at least one end of at least one supporting member (300) is connected with the vertical plates (100) through a connecting piece (200),

the first end of the connecting piece (200) is arranged in the vertical plate (100), and/or the second end of the connecting piece (200) is arranged in the supporting component (300).

2. The frame according to claim 1, wherein a first connecting hole (110) is formed in a surface of the vertical plate (100) facing the connecting piece (200), a second connecting hole (311) is formed in a surface of the supporting member (300) facing the connecting piece (200), a first end of the connecting piece (200) is disposed in the first connecting hole (110), and a second end of the connecting piece (200) is disposed in the second connecting hole (311).

3. The frame of claim 2, wherein the first end of the connector (200) is an interference fit or a transition fit with the first connection aperture (110); and/or the number of the groups of groups,

the second end of the connecting piece (200) is in interference fit or transition fit with the second connecting hole (311).

4. The frame according to claim 1, wherein the connecting piece (200) is integrally formed with the riser (100), a second connecting hole (311) is formed in a surface of the supporting member (300) facing the connecting piece (200), and the second end of the connecting piece (200) is disposed in the second connecting hole (311).

5. The frame according to claim 1, wherein the connecting piece (200) and the supporting member (300) are integrally formed, a first connecting hole (110) is formed in a surface of the vertical plate (100) facing the connecting piece (200), and a first end of the connecting piece (200) is disposed in the first connecting hole (110).

6. The frame according to claim 1, wherein the supporting member (300) comprises a plurality of supporting pieces (310) disposed at intervals around the edges of the upright plates (100), both ends of the supporting pieces (310) are respectively welded to the two upright plates (100), and at least one end of at least one supporting piece (310) is connected to the upright plate (100) through the connecting piece (200).

7. A crankcase housing comprising an upper cover plate (410), a lower cover plate, a front end plate (420), a rear end plate, and a frame according to any one of claims 1 to 6,

the upper cover plate (410) is arranged above the frame, the lower cover plate is arranged below the frame, the front end plate (420) is arranged in front of the frame, and the rear end plate is arranged behind the frame.

8. The crankcase housing of claim 7, wherein a locating member (500) is disposed between at least one of the upper cover plate (410), the lower cover plate, the front end plate (420), and the rear end plate and the frame to locate and mate at least one of the upper cover plate (410), the lower cover plate, the front end plate (420), and the rear end plate with the frame.

9. The crankcase housing of claim 8, wherein at least one of the upper cover plate (410), the lower cover plate, the front end plate (420), and the rear end plate has a first positioning hole formed in a surface thereof facing the frame, the frame has a second positioning hole (120) formed therein opposite to the first positioning hole, a first end of the positioning member (500) is disposed in the first positioning hole, and a second end of the positioning member (500) is disposed in the second positioning hole (120).

10. The crankcase housing of claim 9, wherein the first end of the locating piece (500) is an interference fit or a transition fit with the first locating hole; and/or the number of the groups of groups,

the second end of the positioning piece (500) is in interference fit or transition fit with the second positioning hole (120).