Crude oil unit cylinder cavity blanking cap dismounting tool

Abstract

The utility model relates to a disassembling tool for a crude oil unit cylinder cavity blanking cap. The disassembling tool comprises a positioning piece, a drill bit, a drilling pipe and a cross-shaped pull rod. The outer edge of the top of the drilling pipe is assembled on the first inner hole of the positioning piece; the drill bit is detachably arranged at the end, close to the positioning piece, of the second inner hole of the drilling pipe. The outer edge of the cross-shaped pull rod is movably connected with a second inner hole of the drilling pipe in a matched mode. Four retractable rods which can be freely retracted and released are arranged at one end, close to the positioning piece, of the cross-shaped pull rod; one end of the drilling pipe is screwed, the drill bit drills the crude oil unit cylinder cavity blanking cap, the drill bit is removed after drilling is completed, then the cross pull rod is inserted into the second inner hole, the end of the cross pull rod extends out of the second inner hole and then is inserted into the inner side of the drilling hole, and the four retractable rods of the cross pull rod inserted into the inner side of the drilling hole are opened. And then the retracting and releasing rod is retracted by screwing the drilling pipe so as to pull out the crude oil unit cylinder cavity blanking cap. The fist puller is simple in structure, good in practical capacity and capable of conducting pulling and dismantling operation and repairing at the size position of a fist, and the operation efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oilfield production equipment technical field especially relates to a kind of original oil unit cylinder cavity block cover dismounting frock. BACKGROUND

[0002] Original oil unit is very important equipment in oilfield production, and the main function of original oil unit is to provide power supply for the whole oilfield, which occupies an absolute important share in offshore oil and natural gas production and other fields. The engine cylinder is an important component of the original oil unit, and its failure directly affects the operation of the original oil unit, thereby affecting the normal production of the whole oilfield. There is no such tool for original oil unit maintenance, and in the high-salinity environment on the sea, the block cover of the cylinder cavity of the original oil unit is easily corroded due to its carbon steel material. There are 17 such material block covers on each cylinder. In the oil field, the power consumption is large, and the water cooling circulation system of the unit is washed, which shortens the service life of the block cover and causes the block cover to break, resulting in leakage of cooling water from the cylinder cavity of the original oil unit. The gap between the cylinders of the original oil unit is small, which brings great difficulty to the dismounting and replacement of the block cover. Even if the whole cylinder is dismounted, the replacement of the block cover on the cylinder cavity is also inefficient without professional tools. SUMMARY

[0003] The utility model aims to solve at least one technical problem in the background art and provide a kind of original oil unit cylinder cavity block cover dismounting frock.

[0004] To achieve the above-mentioned purpose, the utility model provides a kind of original oil unit cylinder cavity block cover dismounting frock, comprising: positioning piece, drill bit, drilling pipe and cross pull rod;

[0005] The positioning piece is provided with a first inner hole, and the top outer edge of the drilling pipe is assembled on the first inner hole of the positioning piece;

[0006] The drilling pipe is provided with a second inner hole, and the drill bit is detachably installed at one end of the second inner hole close to the positioning piece;

[0007] The outer edge of the cross pull rod is movably connected with the second inner hole of the drilling pipe;

[0008] One end of the cross pull rod close to the positioning piece is provided with four retractable rods that can be freely retracted and extended;

[0009] By screwing one end of the drilling pipe, the drill bit drills a hole in the block cover of the cylinder cavity of the original oil unit. After drilling is completed, the drill bit is removed, and then the cross pull rod is inserted into the second inner hole and the end of the cross pull rod is inserted into the inside of the drill hole after extending out of the second inner hole. The four retractable rods of the cross pull rod inserted into the inside of the drill hole are opened, and then the retractable rods are retracted by screwing the drilling pipe to pull out the block cover of the cylinder cavity of the original oil unit.

[0010] According to one aspect of the utility model, the positioning piece is a cuboid block, a first inner hole is arranged in the middle part, the first inner hole is provided with internal threads, and the outer wall of the drilling pipe is provided with external threads matched with the first inner hole.

[0011] According to one aspect of the utility model, the drilling pipe comprises a hollow cylinder provided with the second inner hole, the hollow degree of the hollow cylinder is 70%, the second inner hole is provided with internal threads, and the mounting end of the drill bit is provided with external threads matched with the second inner hole.

[0012] According to one aspect of the utility model, the drilling pipe further comprises a hollow hexagonal head arranged at one end of the hollow cylinder away from the drill bit.

[0013] According to one aspect of the utility model, the cross pull rod is a solid cylinder, and the cross pull rod comprises an insertion end.

[0014] Four grooves are arranged on the outer wall of the insertion end, and one end of each of the retractable rods is hingedly connected to the end part of each groove.

[0015] Each retractable rod can be retracted in each groove, and the outer wall size of the insertion end is uniform after retraction.

[0016] The other end of each retractable rod can be separated and opened from each groove, and when separated and opened, each retractable rod forms a cross-shaped support.

[0017] According to one aspect of the utility model, the cross pull rod further comprises a matching end fixedly connected to one end of the insertion end away from the positioning piece, and the outer wall of the matching end is provided with external threads matched with the second inner hole.

[0018] According to one aspect of the utility model, the crude oil unit cylinder cavity plug cover dismounting tool comprises a positioning piece, a drill bit, a drilling pipe and a cross pull rod, the positioning piece is provided with a first inner hole, the top outer edge of the drilling pipe is assembled on the first inner hole of the positioning piece, the drilling pipe is provided with a second inner hole, the drill bit is detachably arranged at one end of the second inner hole close to the positioning piece, the outer edge of the cross pull rod is movably connected with the second inner hole of the drilling pipe, one end of the cross pull rod close to the positioning piece is provided with four retractable rods capable of being freely retracted, one end of the drilling pipe is screwed to make the drill bit drill a hole in the crude oil unit cylinder cavity plug cover, the drill bit is removed after drilling the hole, then the cross pull rod is inserted into the second inner hole and the end part of the cross pull rod is inserted into the inside of the drilled hole after extending out of the second inner hole, the four retractable rods of the cross pull rod inserted into the inside of the drilled hole are opened, and then the retractable rods are retracted by screwing the drilling pipe to pull out the crude oil unit cylinder cavity plug cover.

[0019] According to the scheme of the utility model, the utility model integrates the advantages of drilling and pulling, so that the crude oil unit cylinder cavity cover dismounting tool has a professional surface for the cover which is difficult to maintain due to a narrow position, has a simple structure, good practical ability, can perform pulling and dismounting operation and repair at a fist size position, and greatly improves the operation efficiency.

[0020] According to the scheme of the utility model, the utility model's crude oil unit cylinder cavity cover dismounting tool can simultaneously exert the advantages of punching and pulling, so that the whole tool can perform more complex operation; the whole tool has a small design size, and is convenient for operation in a narrow space; the hexagonal block of the drilling pipe has the advantage of 90-degree operation, and expands the operation position; the hollow design of the drilling pipe can use a matching cross pull rod, and has the function of putting and expanding the leak repairing glue, so that the tool has a certain online leak repairing function, and is more suitable for maintenance of the oil field crude oil unit process hole cover; the whole tool has a small size, and uses less steel and other materials, so that the manufacturing cost and popularity are greatly saved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure exploded view of the crude oil unit cylinder cavity cover dismounting tool according to an embodiment of the utility model is schematically shown. DETAILED DESCRIPTION

[0022] The content of the utility model will now be discussed with reference to exemplary embodiments. It should be understood that the discussed embodiments are only for the purpose of enabling those skilled in the art to better understand and thus implement the content of the utility model, and are not intended to imply any limitation on the scope of the utility model.

[0023] As used herein, the term "comprising" and variations thereof are to be construed as meaning "including but not limited to". The term "based on" is to be construed as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment".

[0024] Figure 1 The structure exploded view of the crude oil unit cylinder cavity cover dismounting tool according to an embodiment of the utility model is schematically shown. As shown in Figure 1 In the present embodiment, the crude oil unit cylinder cavity cover dismounting tool comprises a positioning member 1, a drill bit 2, a drilling pipe 3 and a cross pull rod 4.

[0025] The positioning member 1 is provided with a first inner hole 5, and the top outer edge of the drilling pipe 3 is fitted on the first inner hole 5 of the positioning member 1.

[0026] The drilling pipe 3 is provided with a second inner hole 6, and the drill bit 2 is detachably arranged at one end of the second inner hole 6 close to the positioning member 1.

[0027] The outer edge of the cross pull rod 4 is movably connected with the second inner hole 6 of the drilling pipe 3;

[0028] The cross pull rod 4 is provided with four retractable rods 7 at one end close to the positioning member 1;

[0029] By screwing one end (the left end in the figure) of the drilling pipe 3, the drill bit 2 drills a hole in the cylinder cover of the oil unit, after the drilling is completed, the drill bit 2 is removed, then the cross pull rod 4 is inserted into the second inner hole 6 and the end of the cross pull rod 4 extends out of the second inner hole 6 and is inserted into the inside of the drilled hole, the four retractable rods 7 of the cross pull rod 4 inserted into the inside of the drilled hole are opened, then the retractable rods 7 are retracted by screwing the drilling pipe 3 to pull out the cylinder cover of the oil unit.

[0030] Further, as shown in Figure 1 the embodiment, the positioning member 1 is a cuboid block, a first inner hole 5 is arranged in the middle part, the first inner hole 5 is provided with internal threads, and the outer wall of the drilling pipe 3 is provided with external threads matched with the first inner hole 5.

[0031] Further, as shown in Figure 1 the embodiment, the drilling pipe 3 includes a hollow cylinder 8 with a second inner hole 6, the hollow degree of the hollow cylinder 8 is 70%, the second inner hole 6 is provided with internal threads, and the mounting end of the drill bit 2 is provided with external threads matched with the second inner hole.

[0032] Further, as shown in Figure 1 the embodiment, the drilling pipe 3 further includes a hollow hexagonal head 9 arranged at one end of the hollow cylinder 8 away from the drill bit 2. In this way, the drilling pipe 3 can be screwed through the hollow hexagonal head 9, the screwing process is more convenient and labor-saving, and greater torque can be transmitted.

[0033] Further, as shown in Figure 1 the embodiment, the cross pull rod 4 is a solid cylinder, and the cross pull rod 4 includes an insertion end 10;

[0034] The outer wall of the insertion end 10 is provided with four grooves 11, and one end of each retractable rod 7 is hingedly connected to the end of each groove;

[0035] Each retractable rod 7 can be retracted in each groove 11, and the size of the outer wall of the insertion end 10 is uniform after retraction;

[0036] The other end of each retractable rod 7 can be disengaged from each groove 11 and opened. When disengaged and opened, each retractable rod 7 forms a cross-shaped bracket. This arrangement allows each retractable rod 7 to be retracted in each groove 11, and then the insertion end 10 can be smoothly passed through the drilling tube 3 and entered into the drilled hole. After entering the drilled hole, each retractable rod 7 can be freely spread out to form a cross-shaped bracket. Then, by tightening the cross-shaped bracket, the plug cover can be pulled. After that, the hollow hexagonal head 9 on the drilling tube 3 is twisted 90 degrees with an external wrench. With the reaction force provided by the positioning member 1, the entire plug cover can be pulled out, thereby achieving the removal of the plug cover.

[0037] Furthermore, if Figure 1 As shown, in this embodiment, the cross-bar 4 further includes a mating end 12, which is fixedly connected to the end of the insertion end 10 away from the positioning member 1. The outer wall of the mating end 12 is provided with an external thread that is threadedly engaged with the second inner hole 6. This arrangement allows the insertion end 10 to be stably adjusted after insertion through the mating end 12 and the drilling tube 3, allowing greater force to be transmitted through the insertion end 10 to remove the plug cap, effectively saving manpower and making the operation faster and more convenient.

[0038] According to the above scheme of the present invention, the present invention combines the advantages of drilling and pulling, so that the crude oil unit cylinder cavity plug cover removal tool has a professional surface for plug covers that are small and difficult to maintain. It has a simple structure and good practical ability. It can perform pulling and repair operations in a fist-sized position, greatly improving the efficiency of such operations.

[0039] According to the above scheme of the present invention, the crude oil unit cylinder cavity plug cover disassembly tool of the present invention can give full play to the advantages of drilling and pulling codes at the same time, so that the whole set of tools can perform more complicated operations; the whole set of tools of the present invention is designed to be small in size, which is convenient for operation in a small space; the hexagonal block design of the drilling tube of the present invention has the advantage of 90° operation, which expands the operator's standing position; the hollow design of the drilling tube of the present invention can use a matching cross pull rod, and also has the function of releasing expansion leak-proof glue, so that the tool of the present invention has a certain online leak-proof function, making it more suitable for the maintenance of the process hole plug cover of the crude oil machine in the oil field; since the whole set of tools of the present invention is not large in size and uses less materials such as steel, it greatly saves production costs and popularity.

[0040] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A crude oil unit cylinder cavity block cover dismounting tool, characterized in that, The utility model relates to a positioning piece (1), drill bit (2), drill pipe (3) and cross pull rod (4) are included, positioning piece (1) is equipped with first inner hole (5), drill pipe (3) top outer edge is assembled on first inner hole (5) of positioning piece (1), drill pipe (3) is equipped with second inner hole (6), drill bit (2) is detachably installed in one end of second inner hole (6) near positioning piece (1), cross pull rod (4) outer edge and second inner hole (6) of drill pipe (3) cooperation activity connection, cross pull rod (4) one end near positioning piece (1) is equipped with four can freely retractable retractable rod (7), by screwing one end of drill pipe (3), make drill bit (2) to crude oil unit cylinder cavity bung drilling, after drilling, remove drill bit (2), then cross pull rod (4) is inserted into second inner hole (6) and makes the end of cross pull rod (4) protrude second inner hole (6) and is inserted into the inside of drill hole, four retractable rod (7) of cross pull rod (4) in the inside of drill hole is opened, then by screwing drill pipe (3) makes retractable rod (7) recovery to pull out crude oil unit cylinder cavity bung. Positioning piece (1) is cuboid block, wherein the middle part is provided with first inner hole (5), first inner hole (5) is equipped with internal thread, drill pipe (3) outer wall is equipped with the external thread of cooperation connection with first inner hole (5). Drill pipe (3) includes hollow cylinder (8) with second inner hole (6), and the hollow degree is 70%, second inner hole (6) is equipped with internal thread, and the mounting end of drill bit (2) is equipped with the external thread of cooperation with second inner hole. Drill pipe (3) further includes hollow hexagonal head (9), and the hollow hexagonal head (9) is arranged at one end of hollow cylinder (8) away from drill bit (2). Cross pull rod (4) is a solid cylinder, and the cross pull rod (4) includes an insertion end (10). Four recesses (11) are arranged on the outer wall of the insertion end (10), and one end of each retractable rod (7) is hingedly connected to the end of each recess. Each retractable rod (7) can be retracted in each recess (11), and the outer wall of the insertion end (10) is uniformly sized after retraction.

2. The crude oil unit cylinder cavity block cover dismounting tool according to claim 1, characterized in that, The other end of each retractable rod (7) can be separated from each recess (11) and opened, and each retractable rod (7) forms a cross-shaped support when opened.

3. The crude oil unit cylinder cavity block cover dismounting tool of claim 1, wherein, The cross pull rod (4) further includes a matching end (12) fixedly connected to one end of the insertion end (10) away from the positioning piece (1), and the outer wall of the matching end (12) is provided with external threads for screwing with the second inner hole (6).

4. The crude oil unit cylinder cavity block cover dismounting tool of claim 3, wherein, ​ 5. The crude oil unit cylinder cavity block cover dismounting tool according to any one of claims 1-4, characterized in that, ​ ​ ​ ​ 6. The crude oil unit cylinder cavity block cover dismounting tool of claim 5, wherein, ​

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