Universal disassembly and assembly tool for crank pin of oil pumping unit

Abstract

A universal disassembly and assembly tool for a crank pin of an oil pump. The tool mainly solves the problem that the existing crank pin disassembly and assembly tools are too numerous to carry and are laborious to operate. The tool is characterized in that a multi-purpose swing shaft (11) is connected to the crank hanger (12), a swing shaft hanging ear (8) is fixed to one end of the multi-purpose swing shaft (11), a telescopic rod (6) is connected to the bottom of the swing shaft hanging ear (8), a pendulum rod (4) is connected to the telescopic rod (6), and a hammer head (2) is connected to the end of the pendulum rod (4). The universal disassembly and assembly tool for the crank pin of an oil pump is easy to carry, labor-saving to operate, and highly safe.

Description

Technical Field

[0001] The invention relates to the field of machinery, in particular to an all-purpose disassembly and assembly tool for a crank pin of an oil pumping unit. Background Art

[0002] The crank pin is a vulnerable part of the power transmission in the operation of the oil pump, which converts the rotary motion into the linear reciprocating motion of the connecting rod. When the stroke parameters are adjusted during crude oil production or the crank pin is damaged, the crank pin must be disassembled. However, the existing disassembly and assembly tools are primitive, single-function, large in number, and difficult to carry. The operators are extremely tired during operation, which seriously affects the production efficiency. Summary of the invention

[0003] In order to overcome the shortcomings of existing crank pin disassembly and assembly tools that are large in number, difficult to carry and laborious to operate, the present invention provides an all-purpose disassembly and assembly tool for the crank pin of an oil pumping unit, which is easy to carry, labor-saving to operate and highly safe.

[0004] The technical solution of the present invention is: an all-purpose disassembly and assembly tool for a crank pin of an oil pump, comprising a crank hanger, a multi-purpose swing shaft connected to the crank hanger, a swing shaft hanging ear fixed to one end of the multi-purpose swing shaft, a telescopic rod connected to the bottom of the swing shaft hanging ear, a pendulum rod connected to the telescopic rod, and a hammer head connected to the end of the pendulum rod.

[0005] A sleeve is arranged above a swing shaft hanging ear at one end of the multi-purpose swing shaft, a crowbar head is arranged at the other end, and a plurality of positioning grooves are arranged in the middle of the multi-purpose swing shaft.

[0006] It also includes a positive decomposition hammer head and a reverse decomposition hammer head. One end of the positive decomposition hammer head is provided with a positive external thread, and the inner hole is provided with a positive decomposition hammer head internal thread. The reverse decomposition hammer head is provided with an inner hole, and one end of the reverse decomposition hammer head is provided with a reverse thread.

[0007] The positive buckle decomposition hammer head and the reverse buckle decomposition hammer head are respectively connected to the two ends of the hammer head through positive and reverse center threads, and a bushing impact ring is arranged between the positive buckle decomposition hammer head and the hammer head.

[0008] The positive buckle decomposition hammer head is connected to the end of the telescopic rod through the positive buckle decomposition hammer head internal thread, and the reverse buckle decomposition hammer head is sleeved on the telescopic rod.

[0009] The present invention has the following beneficial effects: due to the adoption of the above scheme, the tool can be hung on the crank after assembly and the direction can be adjusted to achieve the function of a pendulum. After disassembly, it can form a slide hammer, a crowbar, a socket wrench, can protect the crank pin, and be used as a bushing punch and other functions. Therefore, carrying a set of tools can complete all the processes of disassembling and assembling the crank pin, smashing, punching, prying, pulling, and disassembling. It is easy to carry and labor-saving to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1It is a schematic diagram of the structure of the present invention;

[0011] Figure 2 is a schematic diagram of a deformed slide hammer;

[0012] Figure 3 is along Figure 2 Sectional view of AA in the middle;

[0013] Figure 4 It is a schematic diagram of a multi-purpose pendulum shaft.

[0014] In the figure, 1-positive buckle disassembly hammer head, 2-hammer head, 3-reverse buckle disassembly hammer head, 4-pendulum rod, 5-telescopic rod clamping cap, 6-telescopic rod, 7-pendulum rod lifting ear, 8-pendulum shaft hanging ear, 9-sleeve, 10-multi-purpose pendulum shaft positioning bolt, 11-multi-purpose pendulum shaft, 12-crank hanger, 13-hanger fixing bolt, 14-pin shaft, 15-bushing impact ring, 16-positive buckle disassembly hammer head internal thread, 17-telescopic rod thread, 18-positioning groove, 19-crowbar head. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings:

[0016] Depend on Figures 1 to 4 As shown, a universal disassembly and assembly tool for the crank pin of an oil pumping unit includes a crank hanger 12, which is H-shaped and has a hanger fixing bolt 13 connected to the lower part. When working, the crank hanger 12 is hung on the crank and fixed by the hanger fixing bolt 13. The upper part of the crank hanger 12 is connected to a multi-purpose swing shaft 11, and a plurality of positioning grooves 18 are provided in the middle of the multi-purpose swing shaft 11. After the multi-purpose swing shaft 11 passes through the hole on the crank hanger 12, the multi-purpose swing shaft positioning bolt 10 is tightened on the crank hanger 12, and the multi-purpose swing shaft positioning bolt 10 is located in the positioning groove 18, so as to adjust the position of the multi-purpose swing shaft 11. A swing shaft hanging ear 8 is fixed to one end of the multi-purpose swing shaft 11, and a sleeve 9 is provided above the swing shaft hanging ear 8. The multi-purpose swing shaft 11, the swing shaft hanging ear 8 and the sleeve 9 can be processed into one body, and the sleeve 9 can be used to disassemble and assemble the crank pin baffle bolt. The other end of the multi-purpose swing shaft 11 is a crowbar head 19, which can be used to pull off the crank pin nut stop plate.

[0017] The bottom of the pendulum shaft hanging ear 8 is connected to the pendulum rod hanging ear 7 through a pin 14, and the pendulum rod hanging ear 7 is connected to a telescopic rod 6, and the lower end of the telescopic rod 6 is connected to the pendulum rod 4, and the pendulum rod 4 and the telescopic rod 6 are telescopic, and the length is controlled by tightening the telescopic rod clamping cap 5. The end of the pendulum rod 4 is connected to a hammer head 2, and the two ends of the hammer head 2 are respectively provided with external threads with different rotation directions.

[0018] The disassembly tool also includes a positive buckle decomposition hammer head 1 and a reverse buckle decomposition hammer head 3, wherein the positive buckle decomposition hammer head 1 has a positive buckle internal thread at one end, an inner hole at the middle, and a positive buckle decomposition hammer head internal thread 16. The reverse buckle decomposition hammer head 3 has an inner hole at the middle, and a reverse buckle internal thread at one end.

[0019] There are two installation methods for the positive buckle decomposition hammer head 1 and the reverse buckle decomposition hammer head 3. The first is to be connected to the hammer head 2, and connected to the two ends of the hammer head 2 by the positive and reverse middle threads respectively, and a bushing impact ring 15 is provided between the positive buckle decomposition hammer head 1 and the hammer head 2. The positive buckle decomposition hammer head 1, the reverse buckle decomposition hammer head 3 and the hammer head 2 form a combined hammer together, cooperate with the swing of the pendulum rod 4, realize the basic function of the pendulum hammer hitting, and the hammer head can be rotated to hit at different angles. The second is that the positive buckle decomposition hammer head 1 is connected to the telescopic rod thread 17 at the end of the telescopic rod 6 by the positive buckle decomposition hammer head internal thread 16, and the reverse buckle decomposition hammer head 3 is sleeved on the telescopic rod 6, and the reverse buckle decomposition hammer head 3 can slide along the telescopic rod 6 to form a sliding hammer, realizing the function of installing the bushing. At the same time, the positive buckle decomposition hammer head 1 is removed and used alone, and can be installed on the crankpin shaft thread by the positive buckle decomposition hammer head internal thread 16, protecting the pin shaft and the bushing from being injured during the hitting.

Claims

1. A universal disassembly and assembly tool for a crank pin of an oil pumping unit, comprising a crank hanger (12), characterized in that: The crank hanger (12) is connected to a multi-purpose swing shaft (11), one end of the multi-purpose swing shaft (11) is fixed with a swing shaft hanging ear (8), the bottom of the swing shaft hanging ear (8) is connected to a telescopic rod (6), the telescopic rod (6) is connected to a pendulum rod (4), and the end of the pendulum rod (4) is connected to a hammer head (2); it also includes a positive buckle decomposition hammer head (1) and a reverse buckle decomposition hammer head (3), one end of the positive buckle decomposition hammer head (1) is provided with a positive buckle internal thread, the middle part is provided with an inner hole, the inner hole is provided with a positive buckle decomposition hammer head internal thread (16), the reverse buckle decomposition hammer head (3) is provided with an inner hole, and one end of the reverse buckle decomposition hammer head (3) is provided with a reverse buckle thread; The forward-button decomposition hammer head (1) and the reverse-button decomposition hammer head (3) have two installation modes: the first mode is that the forward-button decomposition hammer head (1) and the reverse-button decomposition hammer head (3) are connected to the two ends of the hammer head (2) through forward and reverse-button threads, respectively, and a bushing impact ring (15) is provided between the forward-button decomposition hammer head (1) and the hammer head (2); the second mode is that the forward-button decomposition hammer head (1) is connected to the end of the telescopic rod (6) through the forward-button decomposition hammer head internal thread (16), and the reverse-button decomposition hammer head (3) is sleeved on the telescopic rod (6).

2. The universal disassembly and assembly tool for the crank pin of an oil pumping unit according to claim 1, characterized in that: A sleeve (9) is provided above a swing shaft hanging ear (8) at one end of the multi-purpose swing shaft (11), and a crowbar head (19) is provided at the other end. A plurality of positioning grooves (18) are provided in the middle of the multi-purpose swing shaft (11), and a multi-purpose swing shaft positioning bolt (10) is provided between the positioning groove (18) and the crank hanger (12). The position of the multi-purpose swing shaft (11) is adjusted by placing the multi-purpose swing shaft positioning bolt (10) in different positioning grooves (18).

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