Special tool for drawing air valve of plunger type compressor

Abstract

The utility model discloses a special tool for drawing an air valve of a plunger type compressor. The special tool comprises a pull rod, a first nut, a first base plate, a swinging hammer, a second base plate and a second nut, the pull rod comprises an upper threaded column, a polished rod and a lower threaded column. The outer diameter of the upper threaded column and the outer diameter of the lower threaded column are smaller than that of the polished rod. The upper threaded column of the pull rod penetrates through the first base plate and is in threaded connection with a first nut in a sleeved mode, the lower threaded column of the pull rod penetrates through the second base plate and is in threaded connection with a second nut in a sleeved mode, and the polished rod between the first base plate and the second base plate is movably sleeved with a swinging hammer. A threaded hole is formed in the lower threaded column of the pull rod in the length direction. The swinging hammer has the advantages that the swinging hammer is quickly shifted to quickly slide from the second base plate to the first base plate, impact force generated by quick sliding of the swinging hammer acts on the first base plate, the first base plate upwards drives the pull rod, the pull rod drives the air valve to move upwards, and the purpose of pulling out the air valve is achieved.

Description

Technical field:

[0001] The utility model relates to the technical field of compressor air valve maintenance, in particular to a special tool for pulling out a plunger type compressor air valve. Background technology:

[0002] In order to improve the quality of vinyl chloride, the monomer gas used as the raw material of polymer resin, the plunger compressor manufactured by Chongqing Gas Compressor Factory is selected as the main equipment of the monomer dehydration device. The moisture in the water-containing raw gas is purified using fresh or fully regenerated special desiccant. Since the production process medium contains water and other impurities, the internal parts of the plunger compressor are greatly damaged, especially the air valve of the plunger compressor. It is easy to rust because it is in contact with water and sludge for a long time, which leads to air leakage and pressure relief of the air valve. In addition, the sludge in the impurities will wrap the sealing part between the air valve and the air valve seat, causing the air valve to be blocked, which will lead to unstable exhaust pressure of the plunger compressor and vibration of the machine body. If the vibration value of the plunger compressor exceeds the standard, it must be shut down for inspection and maintenance.

[0003] During the maintenance process, because the sealing part of the valve seat is wrapped by impurities such as silt, the valve is rusted, etc., it is usually necessary to loosen it through "knocking and vibration" before extracting the valve. If "knocking and vibration" is ineffective, hot work can only be used to cut off the valve. During hot work, there will be major safety hazards. Utility model content:

[0004] The utility model aims to provide a special tool for pulling out a plunger compressor air valve.

[0005] The purpose of the utility model is implemented by the following technical scheme: a special tool for pulling out a plunger compressor air valve, which includes a pull rod, a first pad, a hammer and a second pad; the top end of the pull rod is fixedly sleeved with the first pad, the bottom end of the pull rod is fixedly sleeved with the second pad, and the hammer is movably sleeved on the pull rod between the first pad and the second pad; a threaded hole is opened at the bottom end of the pull rod along the length direction.

[0006] Preferably, the pull rod includes an upper threaded column, a smooth rod and a lower threaded column, and the outer diameters of the upper threaded column and the lower threaded column are smaller than the outer diameter of the smooth rod; the upper threaded column of the pull rod passes through the first pad and is threadedly connected with a first nut, and the lower threaded column of the pull rod passes through the second pad and is threadedly connected with a second nut, and the swing hammer is movably mounted on the smooth rod between the first pad and the second pad.

[0007] Preferably, it also includes a first telescopic cylinder and a second telescopic cylinder. When the valve core bolt of the air valve is screwed into the threaded hole at the bottom end of the pull rod, the first telescopic cylinder and the second telescopic cylinder are respectively provided between the second pad and the air valve seat and on both sides of the pull rod. The cylinder bodies of the first telescopic cylinder and the second telescopic cylinder are respectively placed on the end surfaces of the air valve seat, and the telescopic ends of the first telescopic cylinder and the second telescopic cylinder are respectively abutted against the bottom surface of the second pad.

[0008] The advantages of the utility model are as follows: first, the utility model is provided with a pull rod, a first nut, a first pad, a swing hammer, a second pad and a second nut; the first nut locks the first pad to the top end of the pull rod, and the second nut locks the second pad to the bottom end of the pull rod; the swing hammer is slidably sleeved on the pull rod between the first pad and the second pad, and the threaded hole of the pull rod is threadedly connected with the valve core bolt of the air valve; by quickly toggling the swing hammer, the swing hammer slides quickly from the second pad to the first pad, and the impact force generated by the rapid sliding of the swing hammer acts on the first pad, so that the first pad drives the pull rod upward, and the pull rod drives the air valve to move upward, thereby achieving the purpose of pulling out the air valve.

[0009] Second, when the air valve cannot be pulled out by moving the swing hammer, the first telescopic cylinder and the second telescopic cylinder are respectively installed on both sides of the pull rod, so that the cylinder bodies of the first telescopic cylinder and the second telescopic cylinder are respectively placed on the end surfaces of the air valve seat, and the telescopic ends of the first telescopic cylinder and the second telescopic cylinder are respectively abutted against the bottom surface of the second pad, and the telescopic ends of the first telescopic cylinder and the second telescopic cylinder are controlled to extend at the same time, so that the second pad drives the pull rod to move upward, thereby achieving the purpose of pulling out the air valve. Description of the drawings:

[0010] 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 any creativity and labor.

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a schematic diagram of the state when the utility model uses the first telescopic cylinder and the second telescopic cylinder.

[0013] The markings of the components in the accompanying drawings are as follows: pull rod 1, upper threaded column 1.1, bare rod 1.2, lower threaded column 1.3, threaded hole 1.3.1, first nut 2, first pad 3, swing hammer 4, second pad 5, second nut 6, first telescopic cylinder 7, second telescopic cylinder 8, valve seat 9, valve 10, valve core bolt 11. Specific implementation method:

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] like Figure 1-Figure 2 As shown, a special tool for pulling out a plunger compressor gas valve comprises a pull rod 1, a first nut 2, a first pad 3, a swing hammer 4, a second pad 5 and a second nut 6;

[0016] The pull rod 1 includes an upper threaded column 1.1, a smooth rod 1.2 and a lower threaded column 1.3. The outer diameters of the upper threaded column 1.1 and the lower threaded column 1.3 are smaller than the outer diameter of the smooth rod 1.2. The upper threaded column 1.1 of the pull rod 1 passes through a first pad 3 and is sleeved with a first nut 2, the bottom surface of the first pad 3 abuts against the top end surface of the smooth rod 1.2, the first nut 2 is screwed to lock the first pad 3 to the top of the pull rod 1, the lower threaded column 1.3 of the pull rod 1 passes through a second pad 5 and is sleeved with a second nut 6, the top surface of the second pad 5 abuts against the bottom end surface of the smooth rod 1.2, the second nut 6 is screwed to lock the second pad 5 to the bottom of the pull rod 1, the pull rod 1 is fixed to the first pad 3 and the second pad The plates 5 are all detachably connected for easy disassembly and replacement. A hammer 4 is movably sleeved on the bare rod 1.2 between the first pad 3 and the second pad 5. The hammer 4 can be quickly toggled to slide quickly from the second pad 5 to the first pad 3. The impact force generated by the rapid sliding of the hammer 4 acts on the first pad 3, so that the first pad 3 drives the pull rod 1 upward, and the pull rod 1 drives the air valve 10 to move upward, thereby achieving the purpose of pulling out the air valve 10; a threaded hole 1.3.1 is opened in the lower threaded column 1.3 of the pull rod 1 along the length direction, and the pull rod 1 is screwed with the valve core bolt 11 of the air valve 10 through the threaded hole 1.3.1, so that the special tool can be installed on the air valve 10 of the plunger compressor.

[0017] The utility model also includes a first telescopic cylinder 7 and a second telescopic cylinder 8. When the valve core bolt 11 of the air valve 10 is screwed with the threaded hole 1.3.1 at the bottom end of the pull rod 1, the first telescopic cylinder 7 and the second telescopic cylinder 8 are respectively provided between the second pad 5 and the air valve seat 9 and on both sides of the pull rod 1. The cylinder bodies of the first telescopic cylinder 7 and the second telescopic cylinder 8 are respectively placed on the end surfaces of the air valve seat 9, and the telescopic ends of the first telescopic cylinder 7 and the second telescopic cylinder 8 are respectively abutted against the bottom surfaces of the second pad 5. When the air valve 10 cannot be pulled out by moving the swing hammer 4, the first telescopic cylinder 7 and the second telescopic cylinder 8 are installed, and the telescopic ends of the first telescopic cylinder 7 and the second telescopic cylinder 8 are controlled to extend, pushing the second pad 5 upward, and the second pad 5 drives the pull rod 1 to move upward, so that the pull rod 1 pulls out the air valve 10.

[0018] Installation and use process: First, slide the swing hammer 4 onto the bare rod 1.2 of the pull rod 1, and respectively sleeve the first pad 3 and the second pad 5 onto the upper threaded column 1.1 and the lower threaded column 1.3 of the pull rod 1. The first pad 3 is locked by the first nut 2, and the second pad 5 is locked by the second nut 6;

[0019] Second, align the threaded hole 1.3.1 of the tie rod 1 with the valve core bolt 11 of the air valve 10, and screw the tie rod 1 to make the tie rod 1 threadedly connected with the valve core bolt 11 of the air valve 10;

[0020] Third, by using the travel distance between the second pad 5 and the first pad 3 on the pull rod 1, the maintenance personnel quickly toggle the swing hammer 4 to make the swing hammer 4 slide quickly from the second pad 5 to the first pad 3. The impact force generated by the rapid sliding of the swing hammer 4 acts on the first pad 3, so that the first pad 3 drives the pull rod 1 upward, and the pull rod 1 drives the air valve 10 to move upward, so as to achieve the purpose of pulling out the air valve 10;

[0021] Fourth, if the above operations still cannot remove the air valve 10, install the first telescopic cylinder 7 and the second telescopic cylinder 8 on both sides of the pull rod 1 respectively, so that the cylinder bodies of the first telescopic cylinder 7 and the second telescopic cylinder 8 are respectively placed on the end surfaces of the air valve seat 9, and the telescopic ends of the first telescopic cylinder 7 and the second telescopic cylinder 8 are respectively abutted against the bottom surface of the second pad 5, and the telescopic ends of the first telescopic cylinder 7 and the second telescopic cylinder 8 are controlled to extend at the same time, so that the second pad 5 drives the pull rod 1 to move upward, thereby achieving the purpose of pulling out the air valve 10.

[0022] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special tool for pulling out a plunger compressor valve, characterized in that: It includes a pull rod, a first pad, a swing hammer and a second pad; the top end of the pull rod is fixedly sleeved with the first pad, the bottom end of the pull rod is fixedly sleeved with the second pad, and the swing hammer is movably sleeved on the pull rod between the first pad and the second pad; a threaded hole is opened at the bottom end of the pull rod along the length direction.

2. A special tool for pulling out a plunger compressor valve according to claim 1, characterized in that: The pull rod includes an upper threaded column, a smooth rod and a lower threaded column, the outer diameters of the upper threaded column and the lower threaded column are smaller than the outer diameter of the smooth rod; the upper threaded column of the pull rod passes through the first pad and is threadedly connected with a first nut, the lower threaded column of the pull rod passes through the second pad and is threadedly connected with a second nut, and the swing hammer is movably mounted on the smooth rod between the first pad and the second pad.

3. A special tool for pulling out a plunger compressor valve according to claim 1 or 2, characterized in that: It also includes a first telescopic cylinder and a second telescopic cylinder. When the valve core bolt of the air valve is screwed into the threaded hole at the bottom end of the pull rod, the first telescopic cylinder and the second telescopic cylinder are respectively provided between the second pad and the air valve seat and on both sides of the pull rod. The cylinder bodies of the first telescopic cylinder and the second telescopic cylinder are respectively placed on the end surfaces of the air valve seat, and the telescopic ends of the first telescopic cylinder and the second telescopic cylinder are respectively abutted against the bottom surface of the second pad.

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