Tool for measuring inner diameter of cylinder sleeve of reciprocating compressor

Abstract

The utility model relates to a reciprocating compressor cylinder sleeve inner diameter measuring tool, which comprises a measuring cylinder meter assembly, a supporting rod with a pulley, a fixed supporting rod, a camera and an extension rod, the measuring cylinder meter assembly comprises a meter head, a measuring frame and a measuring moment rod, the two ends of the measuring frame are respectively and fixedly connected with the meter head and the measuring moment rod, and the measuring frame is perpendicular to the measuring moment rod. The extension rod is fixedly connected and parallel to the measuring frame, the supporting rod with the pulley and the fixed supporting rod are respectively and fixedly connected with the measuring frame, the pulley is arranged at the bottom of the supporting rod with the pulley, the connecting line of the pulley and the end part of the measuring moment rod is parallel to the measuring frame, and a camera is fixedly connected to the fixed supporting rod and is aligned to the gauge outfit. The reciprocating compressor cylinder sleeve inner diameter measuring tool realizes simple, rapid and accurate measurement of the inner diameter of the cylinder sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of detection measuring tools, in particular to a tool for measuring the inner diameter of a cylinder sleeve of a reciprocating compressor. Background Art

[0002] At present, with the rapid development of petrochemical industry, the production technology level of compressors used in production practice in this field is also constantly improving. Piston reciprocating compressors are widely used in various petrochemical production equipment due to their high thermal efficiency, low unit power consumption, easy processing, low material requirements, low cost, simple device system, early design and production, and mature manufacturing technology. However, in terms of its production practice, piston reciprocating compressors are expensive, but there are still many defects in the design, and due to the large number of moving parts and complex structure, the failure rate is high during operation and requires frequent maintenance.

[0003] Especially for large reciprocating compressors, their design is micro-oil lubrication or oil-free lubrication. The support ring and piston ring are both vulnerable parts, which are easy to wear when reciprocating in the cylinder liner. If the mirror surface of the cylinder liner is high, the life of the piston ring and support ring can be extended. If the cylinder liner is worn and deformed, the piston ring and support ring will also wear quickly.

[0004] At present, in order to measure the wear of the cylinder liner during routine maintenance, a cylinder gauge is usually used to measure the roundness and cylindricity of the cylinder liner. However, since the cylinder liner is relatively deep and the diameter of the cylinder liner is usually 200-900mm, people cannot get in to measure it, their hands are not long enough, and the cylinder gauge is too heavy. Even if they get in the cylinder liner, they cannot accurately measure the data. Conventional measurements can only measure the actual wear of the valve position outside the cylinder liner, and the inside of the cylinder liner cannot be measured, making it difficult to know the actual situation of the cylinder liner. Some reciprocating compressors often have abnormal wear of piston rings and support rings and piston rod jump alarms during operation. If they are not measured, it is unknown whether there is a quality problem with the piston rings and support rings, or whether the cylinder liner is deformed due to wear, which easily leads to waste of piston ring and support ring spare parts. If traditional cylinder gauges are used for measurement, it is easy to over-repair, wasting a lot of labor costs.

[0005] Therefore, the traditional cylinder liner deformation measurement method and the traditional cylinder gauge cannot accurately measure the cylindricity and roundness of the cylinder liner. They can only perform simple measurements on the external position and then estimate and analyze the internal wear of the cylinder liner based on the measurement results. Alternatively, the entire cylinder must be removed from the unit, the cylinder liner must be erected, and then measured. This is a lot of work and requires a lot of manpower and time. Utility Model Content

[0006] The utility model aims to design a tool for measuring the inner diameter of a cylinder sleeve of a reciprocating compressor so as to realize simple, fast and accurate measurement of the inner diameter of the cylinder sleeve.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A tool for measuring the inner diameter of a cylinder sleeve of a reciprocating compressor comprises a cylinder gauge assembly, a support rod with a pulley, a fixed support rod, a camera and an extension rod. The cylinder gauge assembly comprises a gauge head, a measuring frame and a measuring moment rod. The two ends of the measuring frame are respectively fixedly connected with the gauge head and the measuring moment rod. The measuring frame is perpendicular to the measuring moment rod. The extension rod is fixedly connected and parallel to the measuring frame. The support rod with a pulley and the fixed support rod are respectively fixedly connected to the measuring frame. A pulley is provided at the bottom of the support rod with a pulley. The line connecting the pulley and the end of the measuring moment rod is parallel to the measuring frame. The fixed support rod is fixedly connected with the camera, and the camera is aimed at the gauge head.

[0009] Furthermore, in the above-mentioned reciprocating compressor cylinder liner inner diameter measuring tool, the pulley support rod is an adjustable pulley support rod.

[0010] Furthermore, in the above-mentioned reciprocating compressor cylinder liner inner diameter measuring tool, the upper end of the adjustable pulley support rod is hollow and is fixedly connected to the outside with a fixing nut, the fixing nut is threadedly connected to an adjusting bolt, and the adjusting bolt is threadedly connected to a positioning nut.

[0011] Furthermore, in the above-mentioned reciprocating compressor cylinder liner inner diameter measuring tool, a plurality of clamps are provided on the measuring frame, and the pulley support rod and the fixed support rod are respectively fixedly connected to the clamps.

[0012] Furthermore, in the above-mentioned reciprocating compressor cylinder liner inner diameter measuring tool, a plurality of clamps are respectively provided on the measuring frame and the extension rod, and the clamps on the extension rod are fixedly connected to the clamps on the measuring frame.

[0013] Furthermore, in the above-mentioned reciprocating compressor cylinder liner inner diameter measuring tool, the clamp on the extension rod is welded to the clamp on the measuring frame.

[0014] Furthermore, in the above-mentioned reciprocating compressor cylinder liner inner diameter measuring tool, the extension rod is an adjustable telescopic rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a reciprocating compressor cylinder sleeve inner diameter measuring tool, which moves the entire tool through a pulley with a pulley support rod, replacing the handheld cylinder gauge moving inside the cylinder sleeve. The data is relatively stable when measured, avoiding inaccurate measurements caused by the inability to hold the cylinder gauge for a long time. The camera on the fixed support rod is used to observe the readings in real time, which facilitates timely and accurate acquisition of the internal conditions of the cylinder sleeve. The extension rod is used to facilitate measurement at any position of the cylinder sleeve, avoiding the situation where the hand is not long enough to measure the inside. The reciprocating compressor cylinder sleeve inner diameter measuring tool realizes simple, fast and accurate measurement of the cylinder sleeve inner diameter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of a cylinder gauge assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of an adjustable support rod with pulleys of the utility model;

[0020] Figure 4 It is a schematic diagram of a fixed support rod of the utility model;

[0021] Figure 5 This is a schematic diagram of a clamp of the utility model;

[0022] Figure 6 This is a schematic diagram of the front view of the clamp of the utility model;

[0023] The names of the components marked in the figure are as follows:

[0024] 1. Cylinder gauge assembly; 11. Gauge head; 12. Measuring frame; 13. Measuring moment rod; 2. Adjustable support rod with pulley; 21. Adjusting bolt; 201. Positioning nut; 202. Fixing nut; 3. Fixed support rod; 31. Camera; 4. Adjustable telescopic rod; 5. Clamp. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0026] Example: Please refer to Figure 1-6 A reciprocating compressor cylinder liner inner diameter measuring tool comprises a cylinder gauge assembly 1, a support rod with a pulley, a fixed support rod 3, a camera 31 and an extension rod.

[0027] The cylinder gauge assembly 1 comprises a gauge head 11 , a measuring frame 12 and a measuring moment rod 13 . The gauge head 11 and the measuring moment rod 13 are fixedly connected to both ends of the measuring frame 12 , respectively. The measuring frame 12 is perpendicular to the measuring moment rod 13 .

[0028] In this embodiment, the pulley support rod is an adjustable pulley support rod 2. The upper end of the adjustable pulley support rod 2 is hollow, and a fixing nut 202 is fixedly connected to the upper end of the external part, an adjusting bolt 21 is threadedly connected to the fixing nut 202, and a positioning nut 201 is threadedly connected to the adjusting bolt 21. The adjustable pulley support rod 2 is fixedly connected to the measuring frame 12, a clamp 5 is mounted on the measuring frame 12, and the upper end of the adjusting bolt 21 is fixedly connected to the clamp 5. When the adjustable pulley support rod 2 is rotated on the adjusting bolt 21, the adjustable pulley support rod 2 rises or falls on the adjusting bolt 21, so that the distance between the bottom pulley and the measuring frame 12 changes accordingly. When adjusted to a suitable position, the position of the adjustable pulley support rod 2 on the adjusting bolt 21 is fixed by tightening the positioning nut 201. A pulley is provided at the bottom of the pulley support rod, and the line connecting the pulley and the end of the measuring moment rod 13 is parallel to the measuring frame 12, so that it is convenient to move in the cylinder sleeve by the pulley instead of the hand.

[0029] The fixed support rod 3 is L-shaped, and a camera 31 is fixedly connected to the lower end of the fixed support rod 3. The camera 31 is aimed at the meter head 11, which is convenient for real-time observation of the reading. In a specific application scenario, the camera 31 can be connected to a mobile device such as a mobile phone through a network, which is convenient for real-time viewing of the reading. The fixed support rod 3 is fixedly connected to the measuring frame 12, and the measuring frame 12 is equipped with a clamp 5. The upper end of the fixed support rod 3 is fixedly connected to the clamp 5.

[0030] In this embodiment, the extension rod is an adjustable telescopic rod 4, and the adjustable telescopic rod 4 can be made of existing technology. The adjustable telescopic rod 4 is fixedly connected and parallel to the measuring frame 12. Specifically, at least two clamps 5 are respectively provided on the measuring frame 12 and the adjustable telescopic rod 4. The clamps 5 on the adjustable telescopic rod 4 are fixedly connected to the clamps 5 on the measuring frame 12, and the fixed connection method can be welding. The adjustable telescopic rod 4 can extend the measurement depth, so that it is suitable for deeper cylinder sleeves.

[0031] Working principle of this embodiment: This embodiment provides a reciprocating compressor cylinder sleeve inner diameter measuring tool, which moves the entire tool through a pulley with a pulley support rod, replacing the handheld cylinder gauge moving inside the cylinder sleeve. The data is relatively stable when measuring, avoiding inaccurate measurements caused by the inability to hold the cylinder gauge for a long time. The camera 31 on the fixed support rod 3 observes the reading in real time, which facilitates timely and accurate acquisition of the internal conditions of the cylinder sleeve. The extension rod is convenient for measurement at any position of the cylinder sleeve, avoiding the situation where the hand is not long enough to measure the inside. The reciprocating compressor cylinder sleeve inner diameter measuring tool realizes simple, fast and accurate measurement of the cylinder sleeve inner diameter.

[0032] Compared with the prior art, the reciprocating compressor cylinder liner inner diameter measuring tool only needs to disassemble the cylinder head cover to accurately measure the roundness and cylindricity of the entire cylinder liner inner diameter, thereby accurately judging whether the cylinder liner is deformed, abnormally worn, and needs replacement, thereby avoiding excessive maintenance, greatly saving the cost of maintenance spare parts and reducing the labor intensity of operators, and is suitable for widespread promotion and use in oil refineries and chemical plants.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0034] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A tool for measuring the inner diameter of a cylinder liner of a reciprocating compressor, characterized in that: The invention comprises a cylinder gauge assembly (1), a support rod with a pulley, a fixed support rod (3), a camera (31) and an extension rod. The cylinder gauge assembly (1) comprises a gauge head (11), a measuring frame (12) and a measuring moment rod (13). The two ends of the measuring frame (12) are respectively fixedly connected with the gauge head (11) and the measuring moment rod (13). The measuring frame (12) is perpendicular to the measuring moment rod (13). The extension rod is fixedly connected and parallel to the measuring frame (12). The support rod with a pulley and the fixed support rod (3) are respectively fixedly connected with the measuring frame (12). A pulley is provided at the bottom of the support rod with a pulley. The line connecting the pulley and the end of the measuring moment rod (13) is parallel to the measuring frame (12). The fixed support rod (3) is fixedly connected with the camera (31). The camera (31) is aimed at the gauge head (11).

2. The reciprocating compressor cylinder liner inner diameter measuring tool according to claim 1, characterized in that: The support rod with pulleys is an adjustable support rod with pulleys (2).

3. The reciprocating compressor cylinder liner inner diameter measuring tool according to claim 2, characterized in that: The upper end of the adjustable pulley support rod (2) is hollow and is externally fixedly connected with a fixing nut (202), an adjusting bolt (21) is threadedly connected to the fixing nut (202), and a positioning nut (201) is threadedly connected to the adjusting bolt (21).

4. The reciprocating compressor cylinder liner inner diameter measuring tool according to claim 1, characterized in that: The measuring frame (12) is provided with a plurality of hoops (5), and the pulley support rod and the fixed support rod (3) are respectively fixedly connected to the hoops (5).

5. The reciprocating compressor cylinder liner inner diameter measuring tool according to claim 1, characterized in that: A plurality of hoops (5) are respectively provided on the measuring frame (12) and the extension rod, and the hoops (5) on the extension rod are fixedly connected to the hoops (5) on the measuring frame (12).

6. The reciprocating compressor cylinder liner inner diameter measuring tool according to claim 5, characterized in that: The clamp (5) on the extension rod is welded to the clamp (5) on the measuring frame (12).

7. The reciprocating compressor cylinder liner inner diameter measuring tool according to claim 1, characterized in that: The extension rod is an adjustable telescopic rod (4).

Images