Device for measuring coaxiality of cylinder body of reciprocating piston compressor

Abstract

A device for measuring the coaxiality of a cylinder body of a reciprocating piston compressor comprises a crosshead, the cylinder body, a stuffing box body, a cylinder sleeve mirror surface, a tripod, a cross laser gradienter, a first steel ruler, a second steel ruler and a columnar gradienter, the cylinder body coaxial with the crosshead is arranged on one side of the crosshead, the stuffing box body is arranged in the middle of one side of the cylinder body, and the cylinder sleeve mirror surface is arranged on the other side of the crosshead. A cylinder sleeve mirror surface is arranged inside the cylinder body, a tripod is placed on the surface of the bottom of the cylinder sleeve mirror surface, a cross laser level meter is installed at the top end of the tripod, a first steel ruler is vertically fixed on a cross head, a second steel ruler is vertically fixed on the stuffing box body, and the cross laser level meter is located at the center position of the cylinder sleeve mirror surface. The design is ingenious, the service life of parts such as an equipment supporting ring and a cylinder sleeve is prolonged, and safe and stable operation of equipment is effectively guaranteed; the optimized and modified use tool is convenient, the input cost is low, and the cost performance is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to coaxial degree device measurement field, concretely is a kind of measure reciprocating piston compressor cylinder coaxial degree device. BACKGROUND

[0002] The reciprocating piston compressor of import of our company's Germany, main medium for HCL is transported, and conveying pressure is 1.5Mpa, and flow is 6000m 3 / h.Equipment is put into operation in 2013, and operation cycle is about six months, during overhaul, the cylinder liner on each stage piston cylinder body is replaced, after replacement, simple measurement is carried out on cylinder liner using strip level, then start to restore installation piston body, and it is found that the cylinder liner appears front and rear eccentric wear in the overhaul at the end of 2023, and it is found that eccentric wear phenomenon still exists in the overhaul in the middle of 2024, and the horizontal error of cross head and piston rod connection is greater than 15 silk, after judging, the horizontal error of cylinder liner measured using strip level is not accurate enough, cannot show whether piston body runs in cylinder liner and the coaxial degree of cross head, so that the operation risk of equipment is increased and the service life of equipment is affected. CONTENT OF UTILITY MODEL

[0003] In view of the above situation, in order to overcome the defects of prior art, the utility model provides a kind of measure reciprocating piston compressor cylinder coaxial degree device, effectively solve the problem mentioned in the above background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: the utility model includes cross head, cylinder body, stuffing box body, cylinder liner mirror, tripod, cross laser level, first steel ruler, second steel ruler and columnar level, the side of cross head is provided with the cylinder body coaxial with it, the middle part of one side of cylinder body is provided with stuffing box body, the inside of cylinder body is provided with cylinder liner mirror, the bottom surface of cylinder liner mirror is placed with tripod, the top of tripod is installed with cross laser level, first steel ruler is vertically fixed on cross head, second steel ruler is vertically fixed on stuffing box body, and cross laser level is located at the center position of cylinder liner mirror.

[0005] Preferably, the back of the first steel ruler and the second steel ruler is provided with a suction cup.

[0006] Preferably, the top of the first steel ruler and the second steel ruler is vertically installed with a columnar level.

[0007] Preferably, the first steel ruler and the second steel ruler are provided with a circular hole for the cross laser level cross line to pass through at the axial position of cylinder body and stuffing box body.

[0008] Preferably, the tripod is installed with a columnar level.

[0009] Preferably, the cross laser leveler is provided with a columnar leveler and a columnar leveler in vertical direction.

[0010] Beneficial effects: 1. Provide key precision data support for the installation of the compressor, guarantee the accuracy of the installation, and ensure the initial running state of the compressor is good.

[0011] 2. During the maintenance and repair of the compressor, the coaxiality of the cylinder body is accurately measured, which helps to quickly locate the problem, accurately repair, effectively save time and labor cost.

[0012] 3. With high-precision measurement capability, the compressor can run efficiently, reducing energy loss and component additional wear caused by poor cylinder body coaxiality, prolonging the service life of the compressor and reducing operation and maintenance costs.

[0013] 4. The device is designed with exquisite parts, such as steel ruler with suction cup, multi-directional columnar leveler, etc., which is convenient for installation and operation, and further ensures the accuracy and stability of measurement, and improves the overall measurement efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation of the present application. In the drawings:

[0015] Figure 1 is a schematic diagram of the overall structure of the present application;

[0016] Reference numerals in the drawing: 1, cross head; 2, cylinder body; 3, stuffing box body; 4, cylinder sleeve mirror surface; 5, tripod; 6, cross laser leveler; 7, first steel ruler; 8, second steel ruler; 9, columnar leveler. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings Figure 1 The specific embodiments of the present application will be further described in detail.

[0018] Embodiments, by Figure 1The utility model provides a kind of measuring reciprocating piston compressor cylinder coaxial degree device, including crosshead 1, cylinder 2, stuffing box body 3, cylinder liner mirror surface 4, tripod 5, cross laser level 6, first steel ruler 7, second steel ruler 8 and columnar level 9, the side of crosshead 1 is provided with the cylinder 2 of coaxial center with it, the middle part of one side of cylinder 2 is provided with stuffing box body 3, the inside of cylinder 2 is provided with cylinder liner mirror surface 4, cylinder liner mirror surface 4 bottom surface is placed with tripod 5, the top of tripod 5 is installed with cross laser level 6, first steel ruler 7 is vertically fixed on crosshead 1, second steel ruler 8 is vertically fixed on stuffing box body 3, cross laser level 6 is located at the center position of cylinder liner mirror surface 4.

[0019] Crosshead 1: as one of compressor driving parts, it is coaxially arranged with cylinder 2, and is an important reference for subsequent measurement.

[0020] Cylinder 2: the core component of compressor, which contains piston and other components inside, and its coaxial degree directly affects the performance of compressor.

[0021] Stuffing box body 3: located in the middle of one side of cylinder 2, it seals the piston rod and cooperates with cylinder to determine the coaxial degree parameter during measurement.

[0022] Cylinder liner mirror surface 4: the smooth surface inside cylinder 2, which provides guidance for the reciprocating motion of piston and is the basis plane for placing tripod 5 and installing cross laser level 6.

[0023] Tripod 5: used for stable support of cross laser level 6, and columnar level is installed thereon to ensure that the level is in accurate horizontal state and provides reliable reference for measurement.

[0024] Cross laser level 6: the core measuring element of the device, which is located at the center position of cylinder liner mirror surface 4, emits cross laser line, and realizes coaxial degree measurement by cooperating with first steel ruler 7 and second steel ruler 8, and further ensures measurement accuracy by installing columnar level in horizontal and vertical directions.

[0025] First steel ruler 7: vertically fixed on crosshead 1, with suction cup on back surface, can be stably adsorbed on the surface of crosshead, and columnar level 9 is vertically installed on top end, and circular hole is formed at the position of cylinder 2 axis for cross laser level 6 cross line to pass through.

[0026] Second steel ruler 8: vertically fixed on stuffing box body 3, also with suction cup on back surface and columnar level 9 on top end, and circular hole is formed at the position of stuffing box body 3 axis for cross laser level 6 cross line to pass through.

[0027] Working principle: the utility model uses, steady place tripods 5 in the bottom surface of cylinder liner mirror surface 4, utilize the column level on tripods and adjust tripods, make it be in horizontal state, ensure the initial accuracy of cross laser level 6 after installation;

[0028] Put cross laser level 6 accurately in the top of tripods 5, through its self-contained level and vertical column level fine adjustment, ensure that cross laser level 6 is completely horizontal and laser emission direction is perpendicular to cylinder liner mirror surface 4;

[0029] First steel ruler 7 is firmly adsorbed on crosshead 1 through back suction disc, ensure that the steel ruler is vertical and the axis is coincident with the axis of crosshead 1, adjust the top column level 9 to make it show the horizontal state;

[0030] Second steel ruler 8 is adsorbed on stuffing box body 3 in the same way, ensure that it is vertical and the axis is consistent with the axis of stuffing box body 3, adjust the top column level 9;

[0031] Turn on cross laser level 6 to make it emit cross laser line.

[0032] Since the first steel ruler 7 and the second steel ruler 8 are provided with round holes corresponding to the axis positions of cylinder body 2 and stuffing box body 3, the cross line of cross laser level 6 can pass through the round holes, at this time, the scale difference of laser line on the steel ruler on both sides of the round hole is observed;

[0033] By comparing the scale difference of laser line on the first steel ruler 7 and the second steel ruler 8 at different heights, combined with the trigonometric function relationship, the coaxiality deviation value of cylinder body 2 and stuffing box body 3 can be calculated; During the measurement process, the column level of each part is used to monitor the horizontal state of the part in real time, so as to ensure that the measurement data is not disturbed by the inclination factor.

[0034] Beneficial effect: the utility model discloses novel structure, clever idea, utilize three-point positioning a straight line's principle, find out the state of last ray at crosshead and watch the horizontal scale line on the steel ruler, judge, adjust cylinder body or crosshead according to the result, solve the coaxiality problem of piston body and crosshead.

[0035] Finally, it should be pointed out that: the above-mentioned is only the preferred embodiment of the utility model, and is not used for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for measuring the coaxiality of a cylinder of a reciprocating piston compressor, comprising a crosshead (1), a cylinder (2), a stuffing box body (3), a cylinder liner mirror surface (4), a tripod (5), a cross laser level (6), a first steel ruler (7), a second steel ruler (8) and a column level (9), characterized in that: One side of the cross head (1) is provided with a cylinder (2) coaxial with it, the middle of one side of the cylinder (2) is provided with a stuffing box body (3), the inside of the cylinder (2) is provided with a cylinder liner mirror surface (4), the bottom surface of the cylinder liner mirror surface (4) is placed with a tripod (5), the top end of the tripod (5) is installed with a cross laser level (6), the cross head (1) is vertically fixed with a first steel ruler (7), the stuffing box body (3) is vertically fixed with a second steel ruler (8), the cross laser level (6) is located at the center position of the cylinder liner mirror surface (4).

2. A device for measuring the coaxiality of a cylinder of a reciprocating piston compressor according to claim 1, characterized in that: The back surface of the first steel ruler (7) and the second steel ruler (8) is provided with a suction cup.

3. A device for measuring the coaxiality of a cylinder of a reciprocating piston compressor according to claim 2, characterized in that: The top end of the first steel ruler (7) and the second steel ruler (8) is vertically installed with a columnar level (9).

4. A device for measuring the coaxiality of a cylinder of a reciprocating piston compressor according to claim 3, characterized in that: The first steel ruler (7) and the second steel ruler (8) are provided with a circular hole corresponding to the axial position of the cylinder (2) and the stuffing box body (3), which is used for the cross line of the cross laser level (6) to pass through.

5. A device for measuring the coaxiality of a cylinder of a reciprocating piston compressor according to claim 4, characterized in that: The tripod (5) is installed with a columnar level.

6. A device for measuring the coaxiality of a cylinder of a reciprocating piston compressor according to claim 5, characterized in that: The cross laser level (6) is installed with a columnar level and a columnar level in the vertical direction.

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