CN218052423U

CN218052423U - Extracting tool of fracturing pump cover and pump cover nut

Info

Publication number: CN218052423U
Application number: CN202222005254.5U
Authority: CN
Inventors: 蒋清丰; 郭志军; 傅宏伟; 时圣平; 姜涌
Original assignee: Jiangsu Aifutaike Energy Equipment Co ltd
Current assignee: Jiangsu Aifutaike Energy Equipment Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-12-16
Anticipated expiration: 2032-08-01

Abstract

The utility model provides a disassembling tool for a fracturing pump cover and a pump cover nut, which comprises a reinforcing rib, two shearing pins, a bottom plate, an operation hexagonal head, a screw rod, a flat gasket, a first nut and a second nut, wherein the reinforcing rib and the operation hexagonal head are respectively arranged at two ends of the bottom plate, the reinforcing rib is fixedly arranged on the upper surface of the bottom plate, and the two shearing pins are respectively inserted into the reinforcing rib and the bottom plate at the same time; the inside through-hole that is equipped with of operation hexagonal head, its top from the lower surface embedding bottom plate in, the transversal polygon shape of personally submitting of outer wall at embedding position, the through-hole runs through the bottom plate, and the screw rod penetrates in the through-hole, flat pad, first nut and second nut are overlapped on the screw rod according to the preface. The disassembling tool can disassemble or assemble 2 parts of the pump cover and the pump cover nut at one time, and the efficiency is higher; the installation is more accurate and convenient; the safety of the operation is increased.

Description

Extracting tool of fracturing pump cover and pump cover nut

Technical Field

The utility model belongs to the technical field of fracturing pump cover and pump cover nut are dismantled, in particular to fracturing pump cover and pump cover nut's extracting tool.

Background

In the oil and gas exploitation industry of oil fields in recent years, fracturing pumps or well cementing pumps are frequently used, in order to ensure the safety of construction operation and reduce downtime, a hydraulic end assembly of a plunger pump needs to be disassembled and inspected regularly, parts which are disassembled firstly are a cylinder cover and a cylinder cover nut, and the two parts have large quantity and account for about 40 percent of the whole disassembling time. Present extracting tool of fracturing pump cover and pump cap nut is 2 kinds of different instruments, dismantles the pump cover with knocking the spanner (like fig. 1), dismantles pump cap nut and uses slip oil hammer (like fig. 2), but following shortcoming appears in the use:

the reinforcing ribs and the bottom plate are separated because the welding seams are few and the welding seams are broken;

the welding line is broken due to less welding lines between the operation hexagonal head and the bottom plate, and the operation hexagonal head is separated from the bottom plate;

after the cylinder cover nut needs to be disassembled, the cylinder cover is disassembled, and finally the internal condition of the hydraulic cylinder can be checked; when the mounting is carried out again, the cylinder cover is required to be mounted firstly, and then the cylinder cover nut is required to be mounted;

when the sliding oil hammer is used for disassembling the cylinder cover, great inertia impact force is needed, the hand can be knocked, and the situation that the cylinder cover is too tight can not be disassembled.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the defect of prior art, the utility model provides a fracturing pump cover and pump cap nut's extracting tool can dismantle fracturing pump cover and pump cap nut simultaneously, and is accurate convenient, and the security is high.

The technical scheme is as follows: the utility model provides a disassembling tool for a fracturing pump cover and a pump cover nut, which comprises a reinforcing rib, two shearing pins, a bottom plate, an operation hexagonal head, a screw rod, a flat gasket, a first nut and a second nut, wherein the reinforcing rib and the operation hexagonal head are respectively arranged at two ends of the bottom plate, the reinforcing rib is fixedly arranged on the upper surface of the bottom plate, and the two shearing pins are respectively inserted into the reinforcing rib and the bottom plate at the same time; the inside through-hole that is equipped with of operation hexagonal head, its top from the lower surface embedding bottom plate in, the transversal polygon shape of personally submitting of outer wall at embedding position, the through-hole runs through the bottom plate, and the screw rod penetrates in the through-hole, flat pad, first nut and second nut are overlapped on the screw rod according to the preface.

As a priority or improvement:

the two shearing pins are inserted into the positions close to the two end parts of the reinforcing rib respectively.

The polygon is a quadrangle or a hexagon.

The reinforcing ribs and the bottom plate are fixed through welding.

The part of the operation hexagonal head embedded into the bottom plate is fixed with the bottom plate through welding.

Has the advantages that: compared with the prior art, the utility model has the advantages of it is following:

1. 2 parts, namely the pump cover and the pump cover nut, are dismounted or mounted at one time, so that the efficiency is higher;

2. the coaxial type of the screw thread of the hydraulic cylinder cover nut and the cylinder cover mounting hole is utilized to ensure that the mounting root is accurate and convenient;

3. due to the extension design of the shearing pin and the hexagonal head, the use of a sliding oil hammer is eliminated, and the safety of operation is improved.

Drawings

Fig. 1 is a structural diagram of a knocking wrench for disassembling a pump cover in the prior art.

Fig. 2 is a structure diagram of a sliding oil hammer for disassembling a pump cover nut in the prior art.

Fig. 3 is a structural diagram of the disassembling tool of the present invention.

Fig. 4 is a top view of the present invention.

Fig. 5 is a structure diagram of a fracturing pump cover and a pump cover nut.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Examples

A kind of fracturing pump cover and extracting tool of the pump cover nut, as shown in figure 3 and figure 4, including the strengthening rib 1, carrying the shear pin 2, bottom plate 3, operation hexagonal head 4, threaded spindle 5, flat gasket 6, first nut 7 and second nut 8, strengthening rib 1 and operation hexagonal head 4 locate at both ends of the bottom plate 3 separately, the strengthening rib 1 is fixed on the upper surface of the bottom plate 3, two carry the shear pin 2 to insert the strengthening rib 1 and inside the bottom plate 3 at the same time separately; the inside through-hole that is equipped with of operation hexagonal head 4, its top from the lower surface embedding bottom plate 3 in, the transversal edge-type or the hexagon shape of personally submitting of outer wall at embedding position, the through-hole runs through bottom plate 3, screw rod 5 penetrates in the through-hole, flat pad 6, first nut 7 and second nut 8 overlap on screw rod 5 in proper order.

Two shearing pins 2 are respectively inserted at the positions close to the two end parts of the reinforcing rib 1; the reinforcing ribs 1 and the bottom plate 3 are fixed through welding. The part of the operation hexagonal head 4 embedded in the bottom plate 3 is fixed with the bottom plate 3 by welding.

The use method and the principle of the dismounting tool are as follows:

1. aiming at the problem that the welding seams are broken because the welding seams are less between the strengthening ribs 1 and the bottom plate 1, the utility model discloses the tool has increased 2 shearing pins, has reduced the welding seam atress

2. To operation hexagonal head 4 and bottom plate 3 because of the welding seam is less, the problem of breaking is beaten to the welding seam, the utility model discloses the instrument welds in embedding preface bottom plate 3 hexagonal head 4, and polygonal pattern is adopted to hexagonal head 4 embedding part simultaneously, has increased frictional force, has reduced the welding seam atress.

3. Aiming at the problem of secondary disassembly operation, a through hole is formed in the hexagonal head 4; the screw rod 5 penetrates through a through hole of the hexagonal head 4 and is screwed to threads of a cylinder cover 10, the cylinder cover is locked by using a flat gasket 6 and a first nut 7, and a second nut 8 is used for dismounting the back cap and is convenient to dismount the screw rod 5 (see figure 5)

During disassembly, as shown in fig. 5, a hexagonal head 4 of a tool is inserted into an inner hexagon of a cylinder head nut 11, a screw rod 5 is screwed into a cylinder head thread 10, a flat gasket 6 and a first nut 7 are installed, the first nut 7 is properly tightened, a second nut 8 is tightened, tools such as a hammer are used for knocking the reinforcing rib 1, the cylinder head is disassembled along with the cylinder head nut, and during installation, reverse installation is performed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A disassembling tool for a pump cover and a pump cover nut of a fracturing pump is characterized by comprising reinforcing ribs (1), shearing carrying pins (2), a bottom plate (3), a working hexagonal head (4), a screw (5), a flat gasket (6), a first nut (7) and a second nut (8), wherein the reinforcing ribs (1) and the working hexagonal head (4) are respectively arranged at two ends of the bottom plate (3), the reinforcing ribs (1) are fixedly arranged on the upper surface of the bottom plate (3), and the two shearing carrying pins (2) are respectively and simultaneously inserted into the reinforcing ribs (1) and the bottom plate (3); the inside through-hole that is equipped with of operation hexagonal head (4), its top from the lower surface embedding bottom plate (3) of bottom plate (3) in, the transversal polygon shape of personally submitting of outer wall at embedding position, the through-hole runs through bottom plate (3), and screw rod (5) penetrate in the through-hole, flat pad (6), first nut (7) and second nut (8) overlap on screw rod (5) according to the preface.

2. A pump cap and nut remover according to claim 1, wherein said two shear pins (2) are inserted near the ends of the reinforcement ribs (1).

3. A fracturing pump cover and pump cap nut removal tool according to claim 1, wherein the polygon is a quadrilateral or a hexagon.

4. The disassembling tool for the pump cover and the nut of the fracturing pump according to claim 1, wherein the reinforcing rib (1) and the bottom plate (3) are fixed by welding.

5. The detaching tool for the pump cover and the pump cover nut of the fracturing pump according to claim 1, wherein the part of the operation hexagonal head (4) embedded in the base plate (3) is fixed with the base plate (3) by welding.