CN220081665U

CN220081665U - Fracturing pump shell

Info

Publication number: CN220081665U
Application number: CN202321127861.7U
Authority: CN
Inventors: 梁峰; 郑磊; 石碧峰
Original assignee: HUBEI PETROKH MACHINE MANUFACTURING CO LTD
Current assignee: HUBEI PETROKH MACHINE MANUFACTURING CO LTD
Priority date: 2023-05-11
Filing date: 2023-05-11
Publication date: 2023-11-24
Anticipated expiration: 2033-05-11

Abstract

The utility model provides a fracturing pump shell, which comprises a shell body, a guide plate system and a pull rod, wherein the shell body comprises side plates, a main shaft bearing seat, an upper panel, a lower panel, end plates, side plate reinforcing ribs, an oil pan and a view port cover square steel, the shell body is supported and fixed through a plurality of side plates, the main shaft bearing seat is welded and installed on bearing seat holes corresponding to each side plate, the upper panel and the lower panel are respectively installed at the upper end and the lower end of the side plates, the end plates and the view port cover square steel are respectively arranged at the two ends of the side plates, and the fracturing pump shell is subjected to modularized improvement by adopting an integral welding shell to replace a split type crankcase and a cross head box structure used in the prior art, so that the strength requirement of a high-power electric drive fracturing construction working condition on the shell is met, the assembling and maintenance difficulty of the fracturing pump is reduced, and the oil leakage phenomenon of the connecting surface of a conventional split type crankcase and a cross head box is avoided.

Description

Fracturing pump shell

Technical Field

The utility model relates to the technical field of plunger pumps, in particular to a fracturing pump shell.

Background

The fracturing operation is a special yield increasing process widely adopted in the field of oil and gas field exploitation, along with the vigorous development of the domestic shale gas fracturing market, the working condition requirement of high-pressure large-displacement continuous fracturing operation is increasingly vigorous, and along with the popularization of electric drive fracturing equipment in the field of oil field fracturing and the gradual perfection of the matching of electric power equipment such as Xinjiang, sichuan and the like, the occupation ratio of an electric drive fracturing truck or sledge in fracturing construction is increasingly large.

The pump shell is a key part for bearing, supporting and power transmission of components such as a gear reduction mechanism, a connecting rod cross head kinematic pair and a bearing in the fracturing pump, and is subjected to complex load impact at any moment, and the stability and the reliability of the key part directly determine the service condition of the fracturing pump. The pump shell structure of split type crankcase and cross head case is commonly used among the prior art, but crankcase and cross head case junction position in this type of structure have the oil leak risk, in addition in case the oil leak just need disassemble whole pump and change the sealing member, on the other hand cross head slide all adopts big copper sheathing interference to imbed the mode in the pump shell, in case appear excessive wear or lack of oil and burn the pump and lead to the copper sheathing condemnation in the use, need overhaul whole pump shell even scrap, this process wastes time and energy, causes the wasting of resources easily.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the fracturing pump shell so as to solve the problems in the background art, the utility model optimizes the internal structure of the pump shell, greatly simplifies the machining process of the pump shell on the basis of ensuring the use strength performance of the pump shell, and simultaneously reduces the difficulty of processing, installation, maintenance and use by adopting a bolt movable connection mode between a guide sleeve and the pump shell.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a fracturing pump shell, includes pump shell body, deflector system and pull rod, the pump shell body includes curb plate, main shaft bearing frame, top panel, lower panel, end plate, curb plate strengthening rib, oil pan and view port cover square steel, the pump shell body supports fixedly through a plurality of curb plates, main shaft bearing frame welded mounting is on the corresponding bearing frame hole site of every curb plate, top panel and lower panel are installed respectively in the upper end and the lower extreme of curb plate, end plate and view port cover square steel are arranged in the both ends position of curb plate respectively, the both ends of pull rod are provided with connecting screw thread.

Further, the deflector system comprises a guide sleeve, a connecting block, a guide sleeve supporting plate and a guide sleeve connecting bolt, wherein the connecting block is cylindrical, the outer circle is provided with a positioning sub-opening, and the center part is drilled with a through hole.

Furthermore, the whole arc platy structure that is of uide bushing, the top of uide bushing is provided with four strip bosss, and has the screw hole in the middle of every boss, and this screw hole location size corresponds each other with the through-hole position on the connecting block, two uide bushing are complete symmetrical arrangement about the pump case body.

Further, the side plates are divided into a middle side plate and two side plates, and each side plate is formed by integrally blanking and cutting a high-strength steel plate; the upper panel and the lower panel are welded and fixed in a single-piece pairing mode.

Furthermore, the end plate adopts a high-strength alloy steel thick plate as a raw material, and a plurality of communicated circular arc holes are arranged in the middle of the end plate; the oil pan is formed by splicing steel plates, the oil pan is welded under a pump shell crankshaft installation position, three oil drain ports are formed in the bottom of the oil pan, and two drain ports are formed in two sides of the oil pan respectively.

Further, be provided with multichannel curb plate strengthening rib between every adjacent twice curb plate, all be provided with the recess on the curb plate strengthening rib, and be in the top of both ends curb plate all and be provided with the lug.

Further, five mortises are formed in the upper surface and the lower surface of the end plate, five circular arc-shaped positioning sub-openings are formed in the end plate, a plurality of pull rod connecting threaded holes are formed in the end face of the end plate, the upper panel and the lower panel are formed by bending integral high-strength steel plates, the bending sections of all the sections are completely consistent with the appearance of the side plates, and the connecting blocks are welded on the surfaces of the upper panel and the lower panel in an up-down symmetrical mode.

Further, one end of the guide sleeve is provided with an arc-shaped strip-shaped seam allowance which is axially positioned with the end plate, and meanwhile, a lubricating oil hole is tapped in the middle of the guide sleeve; a plurality of guide sleeve supporting plates are arranged between two adjacent guide sleeves, grooves are formed in the centers of the guide sleeve supporting plates, and a plurality of guide sleeve connecting bolts are inserted into the surfaces of the guide sleeves.

The utility model has the beneficial effects that: the utility model relates to a fracturing pump shell which comprises a pump shell body, wherein the pump shell body comprises a manhole cover square steel, an upper panel, a main shaft bearing seat, side plate reinforcing ribs, a lower panel, side plates, an oil pan, a connecting block, end plate reinforcing ribs, end plates, a guide sleeve and guide sleeve connecting bolts.

1. According to the fracturing pump shell, the high-power electric drive fracturing pump shell is subjected to modularized improvement, and an integral welding pump shell is adopted to replace a split type crankcase and a cross head box structure used in the prior art, so that the strength requirement of the high-power electric drive fracturing construction working condition on the shell is met, the assembling and maintenance difficulty of the fracturing pump is reduced, and the oil leakage phenomenon of the connecting surface of the crankcase and the cross head box of the conventional split type pump shell is avoided.

2. The guide sleeve in the fracturing pump shell is movably connected with the pump shell through the bolts to replace the installation and fixation mode that the large copper sleeve in the prior art is embedded into the pump shell in an interference mode, and once phenomena such as abrasion deformation of the cross head installation position occur in the use process of the fracturing pump shell, only the new guide sleeve is needed to be replaced, so that the fracturing pump is rapid and convenient, and the production and maintenance cost of the pump shell is greatly reduced.

Drawings

FIG. 1 is a front view of a fracturing pump housing of the present utility model;

FIG. 2 is a side view of a fracturing pump housing of the present utility model;

FIG. 3 is a top view of a fracturing pump housing of the present utility model;

in the figure: 1. square steel of the manhole cover; 2. an upper panel; 3. a main shaft bearing seat; 4. a side plate reinforcing rib; 5. a lower panel; 6. a side plate; 7. an oil pan; 8. a connecting block; 9. end plate reinforcing ribs; 10. an end plate; 11. a guide sleeve; 12. the guide sleeve is connected with the bolt.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1 to 3, the present utility model provides a technical solution: the utility model provides a fracturing pump shell, includes pump shell body, deflector system and pull rod, the pump shell body includes curb plate 6, main shaft bearing frame 3, top panel 2, bottom panel 5, end plate 10, curb plate strengthening rib 4, oil pan 7 and inspection hole lid square steel 1, and this kind of fracturing pump shell adopts the modularization to constitute the structure, divide into pump shell main part, deflector system, three major parts of pull rod with the pump shell. Through optimizing the internal structure of the pump shell, the integral welding pump shell is adopted to replace the split type crankcase and the cross head box structure commonly used by various existing large factories, so that the requirement of high-power electrically-driven fracturing construction working conditions on the strength of the pump shell is met, the assembling and maintenance difficulty of the fracturing pump is reduced, and the oil leakage phenomenon of the connecting surface of the crankcase and the cross head box of the conventional split type pump shell is avoided.

The pump shell main body consists of six side plates 6, six main shaft bearing seats 3, an upper panel 2, a lower panel 5, end plates 10, side plate reinforcing ribs 4, an oil pan 7 and a view hole cover square steel 1; the side plates 6 are divided into a middle side plate 6 and two side plates 6, the whole pump shell is fixedly supported according to the specific distance size distribution, and meanwhile, bearing seat mounting holes are welded at the corresponding positions of each side plate 6; the main shaft bearing seat 3 adopts a stepped outer circle structure and is welded on corresponding bearing seat hole sites of each side plate 6 respectively by utilizing sub-openings, and the upper panel 2 and the lower panel 5 are welded and fixed at the upper end and the lower end of the side plate 6 respectively in a single-piece pairing mode; the end plate 10 and the square steel 1 of the manhole cover are respectively welded at two ends of the side plate 6, and five mortises are arranged on the upper surface and the lower surface of the end plate 10 and are used for fixedly welding the upper panel 2 and the lower panel 5; the oil pan 7 is welded under the crankshaft bearing seat of the pump shell; the guide plate system mainly comprises a guide sleeve 11, a connecting block 8, a guide sleeve supporting plate and a guide sleeve connecting bolt 12, wherein the connecting block 8 is cylindrical, a positioning sub-opening is formed in the outer circle, and a through hole is drilled in the center;

in this embodiment, the guide sleeve 11 has 4 strip-shaped bosses, a threaded hole is drilled in the middle of each boss, the positioning size of the threaded hole corresponds to the position of the through hole on the connecting block 8 one by one, the guide sleeve 11 is fixed on the pump shell by the guide sleeve connecting bolt 12 through the central hole of the connecting block 8, and the upper and lower guide sleeves 11 of each shell are completely symmetrically arranged. The installation and fixation mode of large copper sleeves commonly used by various existing large factories and embedded in the pump shell in an interference manner is replaced by movable connection of bolts, and the phenomena of abrasion deformation and the like of the cross head installation position once the pump shell of the fracturing pump appears in the use process, the novel guide sleeve 11 is only needed to be replaced, so that the novel installation and fixation method is rapid and convenient, and the production and maintenance cost of the pump shell is greatly reduced.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a fracturing pump shell, includes pump shell body, deflector system and pull rod, its characterized in that: the pump shell body comprises side plates (6), main shaft bearing seats (3), an upper panel (2), a lower panel (5), end plates (10), side plate reinforcing ribs (4), an oil pan (7) and a view port cover square steel (1), the pump shell body is supported and fixed through the side plates (6), the main shaft bearing seats (3) are welded and mounted on corresponding bearing seat holes of each side plate (6), the upper panel (2) and the lower panel (5) are respectively mounted at the upper end and the lower end of the side plates (6), the end plates (10) and the view port cover square steel (1) are respectively arranged at two end positions of the side plates (6), and connecting threads are arranged at two ends of the pull rod.

2. A frac pump casing according to claim 1, wherein: the guide plate system comprises a guide sleeve (11), a connecting block (8), a guide sleeve supporting plate and a guide sleeve connecting bolt (12), wherein the connecting block (8) is cylindrical, a positioning sub-opening is formed in the outer circle of the connecting block (8), and a through hole is drilled in the center of the connecting block (8).

3. A frac pump casing according to claim 2, wherein: the guide sleeve (11) is integrally in a circular arc-shaped plate-shaped structure, four strip-shaped bosses are arranged at the top of the guide sleeve (11), threaded holes are drilled in the middle of each boss, the positioning size of each threaded hole corresponds to the position of a through hole in the connecting block (8), and the upper guide sleeve and the lower guide sleeve (11) of the pump shell body are completely symmetrically arranged.

4. A frac pump casing according to claim 1, wherein: the side plates (6) are divided into a middle side plate (6) and two side plates (6), and each side plate (6) is formed by integrally blanking a high-strength steel plate; the upper panel (2) and the lower panel (5) are welded and fixed in a single-piece pairing mode.

5. A frac pump casing according to claim 2, wherein: the end plate (10) adopts a high-strength alloy steel thick plate as a raw material, and a plurality of circular arc holes communicated with each other are arranged in the middle of the end plate (10); the oil pan (7) is formed by splicing steel plates, the oil pan (7) is welded under a pump shell crankshaft installation position, three oil drain ports and two emptying ports are formed in the bottom of the oil pan (7), and end plate reinforcing ribs (9) are arranged in the end plate (10).

6. A frac pump casing according to claim 4, wherein: a plurality of side plate reinforcing ribs (4) are arranged between every two adjacent side plates (6), grooves are formed in the side plate reinforcing ribs (4), and lifting lugs are arranged at the tops of the side plates (6) at two ends.

7. A frac pump casing according to claim 5, wherein: five mortises are arranged on the upper surface and the lower surface of the end plate (10), five circular arc-shaped positioning sub-openings are arranged on the end plate (10), a plurality of pull rod connecting threaded holes are formed in the end face of the end plate (10), the upper panel (2) and the lower panel (5) are formed by bending integral high-strength steel plates, the bending sections of the sections are completely consistent with the appearance of the side plates (6), and the connecting blocks (8) are welded on the surfaces of the upper panel (2) and the lower panel (5) in an up-down symmetrical mode.

8. A frac pump casing according to claim 2, wherein: one end of the guide sleeve (11) is provided with a circular arc-shaped strip-shaped sub-opening axially positioned with the end plate (10), and meanwhile, a lubricating oil hole is tapped in the middle of the guide sleeve (11); a plurality of guide sleeve supporting plates are arranged between two adjacent guide sleeves (11), grooves are formed in the centers of the guide sleeve supporting plates, and a plurality of guide sleeve connecting bolts (12) are inserted into the surfaces of the guide sleeves (11).