Installation tool for pull rod oil seal of fracturing pump

Abstract

The utility model relates to the technical field of fracturing pumps, in particular to an installation tool for a pull rod oil seal of a fracturing pump. Comprising a mounting sleeve, an oil seal, an oil seal base, a pull rod and two limiting assemblies, the oil seal base is connected with the mounting sleeve in an inserted mode, the oil seal is detachably connected with the oil seal base, and the pull rod is movably connected with the oil seal base and penetrates through the oil seal base; the limiting assembly comprises an inclined block, a movable wheel, a mounting base, a pushing piece, a fixed clamping plate and a reset piece, the fixed cavity is in an L shape, the pushing piece is fixedly connected with the mounting sleeve and located in the fixed cavity, the mounting base is connected with the pushing piece, the movable wheel is connected with the mounting base and located in the fixed cavity, and the inclined block is movably connected with the mounting sleeve and located in the fixed cavity; the fixing clamping plate is fixedly connected with the inclined block, the reset piece is arranged in the fixing cavity and connected with the inclined block, and through the mode, the pull rod oil seal can be conveniently installed, manpower and time are greatly reduced, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fracturing pumps, in particular to an installation tool for a pull rod oil seal of a fracturing pump. Background Art

[0002] In the process of shale gas extraction, fracturing (through fracturing pumps) is a key technology aimed at improving extraction efficiency and output. Fracturing pumps are the core equipment in the fracturing process. Their main function is to inject fracturing fluid into the ground at high pressure to create cracks in the rock formation. Fracturing pumps are usually composed of multiple cylinders, such as five-cylinder pumps or three-cylinder pumps. These cylinders work together to generate sufficient pressure and flow to meet the needs of fracturing operations. As an important mechanical equipment, the working performance and stability of fracturing pumps are directly related to extraction efficiency and cost. As an indispensable sealing element in a fracturing pump, the installation quality of the tie rod seal directly affects the overall performance and service life of the fracturing pump.

[0003] When replacing the tie rod oil seal, a person places the tie rod oil seal outside the tie rod and presses it with hands to replace it.

[0004] However, the existing manual force replacement of oil seals requires a lot of manpower and time, and the installation efficiency is low. Utility Model Content

[0005] The utility model aims to provide an installation tool for a fracturing pump tie rod oil seal, aiming to solve the technical problem that the existing manual force is used to replace the oil seal, which consumes a lot of manpower and time and has low installation efficiency.

[0006] To achieve the above purpose, the utility model adopts a fracturing pump tie rod oil seal installation tool, including an installation sleeve, an oil seal, an oil seal base, a tie rod and two sets of limit assemblies, the installation sleeve has two fixed cavities, each of the fixed cavities is provided with the limit assembly, the oil seal base is plugged with the installation sleeve, the oil seal is detachably connected with the oil seal base, the tie rod is movably connected with the oil seal base, and passes through the oil seal base;

[0007] The limiting assembly includes an inclined block, a movable wheel, a mounting seat, a pushing member, a fixed splint and a reset member. The fixed cavity is L-shaped. The pushing member is fixedly connected to the mounting sleeve and is located in the fixed cavity. The mounting seat is connected to the pushing member. The movable wheel is connected to the mounting seat and is located in the fixed cavity. The inclined block is movably connected to the mounting sleeve and is located in the fixed cavity. The fixed splint is fixedly connected to the inclined block. The reset member is arranged in the fixed cavity and connected to the inclined block.

[0008] Wherein, the limiting assembly further comprises a rubber pad, which is fixedly connected to the fixing clamping plate and is located on the outer side wall of the fixing clamping plate.

[0009] Wherein, the limiting assembly further comprises a smooth pad, which is fixedly connected to the inclined block and is located on the outer side wall of the inclined block.

[0010] Among them, the pushing member includes a fixed plate and an electric push rod, the fixed plate is fixedly connected to the mounting sleeve and is located in the fixed cavity, the electric push rod is fixedly connected to the fixed plate and passes through the fixed plate, and the mounting seat is fixedly connected to the output end of the electric push rod.

[0011] Among them, the reset member includes a spring and a slider, the slider is fixedly connected to the inclined block and is located on the outer side wall of the inclined block, the fixed cavity is provided with a sliding groove, the slider is also slidably connected to the mounting sleeve and is located in the sliding groove, the spring is arranged in the sliding groove and fixedly connected to the slider.

[0012] The utility model provides an installation tool for a rod oil seal of a fracturing pump. Before installing the oil seal, the oil seal is first embedded in the oil seal base, and then the oil seal base is inserted into the installation sleeve. The pushing members in the two fixed cavities are started, and each of the pushing members drives the installation seat to move in the fixed cavity. The installation seat drives the movable wheel to push the inclined surface of the inclined block. The inclined block is forced to slide outward in the fixed cavity, and then the inclined block drives the fixed clamping plate to clamp the oil seal base, so that the oil seal base and the installation sleeve are both fixed, and the other end of the installation sleeve is fixed. The end is abutted against the hydraulic end, and then the crankshaft is rotated to make the pull rod move in the direction of the installation sleeve. The pull rod oil seal base will be fixed in place because of the abutment. As the pull rod approaches, the pull rod will be inserted into the oil seal little by little, thereby completing the installation of the oil seal. Then, it is only necessary to fix the pull rod oil seal base on the power end, and then the pushing member drives the movable wheel to reset, and the pushing member is used to move the inclined block and the fixed splint into the fixed cavity, and then the installation sleeve is separated from the oil seal base. Through the above method, the pull rod oil seal can be easily installed, which greatly reduces manpower and time and improves installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of a fracturing pump tie rod oil seal installation tool of the utility model.

[0015] Figure 2 It is a sectional view of the overall internal structure of the installation tool for the rod oil seal of the fracturing pump of the utility model.

[0016] Figure 3 It is a schematic diagram of the overall internal disassembly of the installation tool for the rod oil seal of the fracturing pump of the utility model.

[0017] Figure 4 The utility model Figure 2 A magnified view of the local structure at A.

[0018] Figure 5 The utility model Figure 3 Enlarged view of the local structure at point B.

[0019] 101-mounting sleeve, 102-oil seal, 103-oil seal base, 104-pull rod, 105-fixed cavity, 106-oblique block, 107-movable wheel, 108-mounting seat, 109-fixed splint, 110-rubber pad, 111-smooth pad, 112-fixed plate, 113-electric push rod, 114-sliding groove, 115-spring, 116-sliding block, 117-hydraulic end. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] See also Figure 1 to Figure 5 The utility model provides an installation tool for a fracturing pump pull rod 104 oil seal 102, comprising a mounting sleeve 101, an oil seal 102, an oil seal base 103, a pull rod 104 and two sets of limiter components, wherein the mounting sleeve 101 has two fixed cavities 105, each of the fixed cavities 105 is provided with the limiter component, the oil seal base 103 is plugged with the mounting sleeve 101, the oil seal 102 is detachably connected with the oil seal base 103, the pull rod 104 is movably connected with the oil seal base 103, and passes through the oil seal base 103;

[0022] The limiting assembly includes an inclined block 106, a movable wheel 107, a mounting seat 108, a pushing member, a fixed splint 109 and a reset member. The fixed cavity 105 is L-shaped. The pushing member is fixedly connected to the mounting sleeve 101 and is located in the fixed cavity 105. The mounting seat 108 is connected to the pushing member. The movable wheel 107 is connected to the mounting seat 108 and is located in the fixed cavity 105. The inclined block 106 is movably connected to the mounting sleeve 101 and is located in the fixed cavity 105. The fixed splint 109 is fixedly connected to the inclined block 106. The reset member is arranged in the fixed cavity 105 and connected to the inclined block 106.

[0023] In this embodiment, before installing the oil seal 102, the oil seal 102 is first embedded in the oil seal base 103, and then the oil seal base 103 is inserted into the installation sleeve 101, and the pushing members in the two fixed cavities 105 are started. Each of the pushing members drives the mounting seat 108 to move in the fixed cavity 105, and the mounting seat 108 drives the movable wheel 107 to push the inclined surface of the inclined block 106. The inclined block 106 is forced to slide outward in the fixed cavity 105, and then the inclined block 106 drives the fixed clamping plate 109 to clamp the oil seal base 103, so that the oil seal base 103 and the installation sleeve 101 are fixed, and the other end of the installation sleeve 101 is connected to the hydraulic end 101. 17 is held, and then the crankshaft is rotated to make the pull rod 104 move in the direction of the installation sleeve 101. The pull rod 104 oil seal base 103 will be fixed in place due to being held, and as the pull rod 104 approaches, the pull rod 104 will be inserted into the oil seal 102 little by little, thereby completing the installation of the oil seal 102, and then it is only necessary to fix the pull rod 104 oil seal base 103 on the power end, and then the pushing member drives the movable wheel 107 to reset, and the pushing member is used to move the inclined block 106 and the fixed clamping plate 109 into the fixed cavity 105, and then the installation sleeve 101 is separated from the oil seal base 103. Through the above method, it is achieved that the pull rod 104 oil seal 102 can be easily installed, which greatly reduces manpower and time and improves installation efficiency.

[0024] Furthermore, the limiting assembly further includes a rubber pad 110 , which is fixedly connected to the fixing clamping plate 109 and is located on an outer side wall of the fixing clamping plate 109 .

[0025] In this embodiment, by providing the rubber pad 110 on the outer side of the fixing clamp plate 109 , the rubber pad 110 can increase the friction when the fixing clamp plate 109 contacts the oil seal base 103 , and can firmly fix the oil seal base 103 in the mounting sleeve 101 .

[0026] Furthermore, the limiting assembly further includes a smooth pad 111 , which is fixedly connected to the inclined block 106 and is located on an outer side wall of the inclined block 106 .

[0027] In this embodiment, by providing the smooth pad 111 on the outside of the inclined block 106 , the smooth pad 111 can reduce the friction when the movable wheel 107 contacts the inclined block 106 , making it easier for the movable wheel 107 to push the inclined block 106 .

[0028] Furthermore, the pushing member includes a fixed plate 112 and an electric push rod 113, the fixed plate 112 is fixedly connected to the mounting sleeve 101 and is located in the fixed cavity 105, the electric push rod 113 is fixedly connected to the fixed plate 112 and passes through the fixed plate 112, and the mounting seat 108 is fixedly connected to the output end of the electric push rod 113.

[0029] In this embodiment, the fixing plate 112 fixes and supports the electric push rod 113 in the fixing cavity 105 , and the electric push rod 113 controls the movement of the movable wheel 107 .

[0030] Furthermore, the reset member includes a spring 115 and a slider 116, the slider 116 is fixedly connected to the inclined block 106 and is located on the outer wall of the inclined block 106, the fixed cavity 105 is provided with a sliding groove 114, the slider 116 is also slidingly connected to the mounting sleeve 101 and is located in the sliding groove 114, the spring 115 is arranged in the sliding groove 114 and is fixedly connected to the slider 116.

[0031] In this embodiment, the slider 116 moves with the inclined block 106 , and when the oil seal base 103 is not fixed, the spring 115 pulls the inclined block 106 through the slider 116 to locate the inclined block 106 in the fixed cavity 105 .

[0032] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A fracturing pump tie rod oil seal installation tool, characterized in that: It includes a mounting sleeve, an oil seal, an oil seal base, a pull rod and two sets of limiter assemblies. The mounting sleeve has two fixed cavities, each of which is provided with the limiter assembly. The oil seal base is plugged with the mounting sleeve, the oil seal is detachably connected with the oil seal base, and the pull rod is movably connected with the oil seal base and passes through the oil seal base. The limiting assembly includes an inclined block, a movable wheel, a mounting seat, a pushing member, a fixed splint and a reset member. The fixed cavity is L-shaped. The pushing member is fixedly connected to the mounting sleeve and is located in the fixed cavity. The mounting seat is connected to the pushing member. The movable wheel is connected to the mounting seat and is located in the fixed cavity. The inclined block is movably connected to the mounting sleeve and is located in the fixed cavity. The fixed splint is fixedly connected to the inclined block. The reset member is arranged in the fixed cavity and connected to the inclined block.

2. The installation tool for the rod oil seal of a fracturing pump according to claim 1, characterized in that: The limiting assembly also includes a rubber pad, which is fixedly connected to the fixing clamping plate and is located on the outer side wall of the fixing clamping plate.

3. The installation tool for the rod oil seal of a fracturing pump according to claim 2, characterized in that: The limiting assembly also includes a smooth pad, which is fixedly connected to the inclined block and is located on the outer side wall of the inclined block.

4. The installation tool for the rod oil seal of a fracturing pump according to claim 1, characterized in that: The pushing member includes a fixing plate and an electric push rod, the fixing plate is fixedly connected to the mounting sleeve and is located in the fixing cavity, the electric push rod is fixedly connected to the fixing plate and passes through the fixing plate, and the mounting seat is fixedly connected to the output end of the electric push rod.

5. The installation tool for the rod oil seal of a fracturing pump according to claim 2, characterized in that: The reset member includes a spring and a slider, the slider is fixedly connected to the inclined block and is located on the outer side wall of the inclined block, the fixed cavity is provided with a sliding groove, the slider is also slidably connected to the mounting sleeve and is located in the sliding groove, the spring is arranged in the sliding groove and fixedly connected to the slider.

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