Single screw pump multi-stage pump rotor size measuring tooling

Abstract

The utility model relates to single screw pump multistage pump rotor size measurement technical field, and disclose a kind of single screw pump multistage pump rotor size measurement tool, comprising: support adjusting assembly, comprising: support frame, it is frame structure;Four adjusting feet cups are respectively installed in support frame bottom four corners, adjusting feet cup can be telescopic along vertical to adjust height, its bottom is equipped with plastic soft cushion layer, and can be slid on lathe guide rail by cushion layer;Measuring assembly, comprising: measuring plate, horizontal setting is in support frame top, for adhering rotor main body outside to bear measurement;Annular plate, fixed in the side of measuring plate close to rotor main body, for with the outer periphery of rotor main body adaptation positioning, install on measuring plate, for reading the size measurement data of rotor main body.The single screw pump multistage pump rotor size measurement tool, reduce security risk: without dismounting and hoisting rotor, avoid the security risk that possibly exists in the process that rotor is hoisted, reduce the risk of bumping equipment when dismounting simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of rotor dimension measurement technology for single screw pumps and multistage pumps, specifically a tooling for measuring rotor dimensions of single screw pumps and multistage pumps. Background Technology

[0002] As a key component of the single screw pump, the rotor of the single screw pump has extremely high requirements for dimensional accuracy. During the processing, its dimensions need to be frequently inspected and checked. The traditional measurement method requires disassembling the rotor from the lathe. When the rotor length exceeds 2 meters, the disassembly process is extremely difficult and often requires the cooperation of more than two people. Moreover, it is necessary to use a crane to move the rotor to achieve disassembly and assembly.

[0003] This process not only affects the levelness of the rotor, but for multi-stage rotors, which are heavy and long, disassembly and assembly can easily affect the accuracy of the machining tooling, and may even bump into the equipment, causing damage. At the same time, traditional measurement methods require a lot of manpower and resources, the lifted rotor also poses certain safety hazards, and recalibration is required when disassembling and reinstalling, which further reduces processing efficiency and can easily introduce dimensional errors, affecting the machining quality of the rotor. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a single-screw pump multistage pump rotor dimension measuring fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fixture for measuring the rotor dimensions of a single-screw pump / multistage pump includes:

[0007] Support adjustment components, including:

[0008] The support frame has a frame structure.

[0009] Four adjustable feet are installed at the four corners of the bottom of the support frame. The adjustable feet can extend and retract vertically to adjust the height. The bottom of the feet is provided with a soft plastic pad and can slide on the lathe guide rail through the pad.

[0010] Measurement components, including:

[0011] The measuring plate is horizontally positioned on top of the support frame to fit against the outside of the rotor body for measurement.

[0012] An annular plate is fixed to the side of the measuring plate near the rotor body and is used for fitting and positioning with the outer periphery of the rotor body.

[0013] A scale, mounted on the measuring plate, is used to read the dimensional measurement data of the rotor body;

[0014] The tooling adjusts the level of the measuring plate by adjusting the foot cups, so that the measuring plate contacts the highest point of the rotor body. The rotor body can be dimensionally measured on the lathe guide rail without disassembling the rotor body, and multi-point measurement can be achieved by sliding and adjusting the foot cups.

[0015] Preferably, the adjustable foot cup includes a screw and a base. One end of the screw is threaded to the bottom of the support frame, and the other end is fixed to the base. The thickness of the soft plastic pad at the bottom of the base is 3-5mm.

[0016] Preferably, the scale is a height gauge, which is vertically fixed to the side of the measuring plate away from the annular plate, and the measuring reference surface of the scale is flush with the upper surface of the measuring plate.

[0017] Preferably, the inner diameter of the annular plate is adapted to the nominal diameter of the rotor body, and the annular plate and the measuring plate are detachably connected by bolts.

[0018] Preferably, the measuring plate is made of No. 45 steel plate, and its surface is ground, with a flatness error of no more than 0.02 mm / m.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This single-screw pump multistage pump rotor size measurement fixture reduces safety risks: it eliminates the need to disassemble and hoist the rotor, avoiding potential safety hazards during rotor hoisting and reducing the risk of equipment collisions during disassembly and assembly.

[0021] 2. This single-screw pump multistage pump rotor size measuring fixture saves manpower and resources: it eliminates the need for multiple people to disassemble, hoist, and reinstall the rotor, greatly reducing manpower consumption and material losses in related operations.

[0022] 3. The single screw pump multistage pump rotor size measuring fixture improves processing efficiency: it eliminates the need for rotor disassembly and recalibration of the processing fixture, reducing unnecessary process time and improving overall processing efficiency.

[0023] 4. The single-screw multistage pump rotor dimension measuring fixture ensures machining accuracy: it avoids the impact of rotor disassembly and reinstallation on machining accuracy, reduces dimensional errors, and ensures rotor machining quality.

[0024] 5. This single-screw pump multistage pump rotor size measuring fixture enhances its applicability: The adjustable feet facilitate the calibration of the measuring plane, adapting to the measurement needs of rotors of different specifications, thus having a wide range of applications. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0026] Figure 2 This is a three-dimensional schematic diagram of the measuring plate and related structures of this utility model;

[0027] Figure 3 This is a bottom view of the measuring structure of this utility model.

[0028] In the diagram: 1. Lathe guide rail; 2. Drive end; 3. Rotor body; 4. Measuring plate; 5. Scale; 6. Support frame; 7. Annular plate; 8. Adjusting feet. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example:

[0031] Please refer to the following: Figure 1-3 ,

[0032] A fixture for measuring the rotor dimensions of a single-screw pump / multistage pump includes:

[0033] Support adjustment components, including:

[0034] Support frame 6 has a frame structure;

[0035] Four adjustable feet 8 are installed at the four corners of the bottom of the support frame 6. The adjustable feet 8 can be extended and retracted vertically to adjust the height. The bottom of the feet is provided with a soft plastic pad, and the feet can slide on the lathe guide rail 1 through the pad.

[0036] Measurement components, including:

[0037] The measuring plate 4 is horizontally set on the top of the support frame 6 and is used to fit against the outside of the rotor body 3 to support the measurement.

[0038] The annular plate 7 is fixed to the side of the measuring plate 4 near the rotor body 3 and is used to adapt and position itself to the outer periphery of the rotor body 3.

[0039] A scale 5 is mounted on the measuring plate 4 and is used to read the dimensional measurement data of the rotor body 3;

[0040] The tooling calibrates the level of the measuring plate 4 by adjusting the foot cup 8, so that the measuring plate 4 contacts the high point of the rotor body 3. The rotor body 3 can be measured on the lathe guide rail 1 without disassembling the rotor body 3, and multi-point measurement can be achieved by sliding and adjusting the foot cup 8.

[0041] Specifically, in the support and adjustment assembly, the support frame 6 serves as the basic frame to support the measuring assembly. The adjustment feet 8 at the four corners of the bottom adjust the height by vertical extension and retraction, ensuring that the top measuring plate 4 contacts the high point of the rotor body 3 and calibrates the levelness. The soft plastic pad at the bottom of the adjustment feet 8 not only avoids scratching the lathe guide rail 1, but also allows the tooling to slide on the guide rail, realizing multi-point measurement.

[0042] In the measurement assembly, the measuring plate 4 is attached to the outer side of the rotor body 3 as the measurement reference surface, the annular plate 7 is adapted to the outer circumference of the rotor for auxiliary positioning, and the scale 5 directly reads the dimensional data.

[0043] The rotor can be disassembled without disassembling the entire machine. By adjusting the height and sliding position of the foot cup 8, efficient and safe dimensional measurement can be completed on the lathe guide rail 1.

[0044] In the embodiment: the adjusting foot cup 8 includes a screw and a base. One end of the screw is threaded to the bottom of the support frame 6, and the other end is fixed to the base. The thickness of the soft plastic pad at the bottom of the base is 3-5mm.

[0045] Specifically, the adjustable foot cup 8 consists of a screw and a base. The screw is threaded to the bottom of the support frame 6. The support height can be precisely adjusted by rotating the screw to ensure that the level of the measuring plate 4 meets the requirements.

[0046] The 3-5mm thick plastic soft pad at the bottom of the base ensures that the tooling slides smoothly on the lathe guide rail 1, avoids hard contact that could cause wear to the guide rail and tooling, and enhances stability during sliding.

[0047] In this embodiment: the scale 5 is a height gauge, which is vertically fixed to the side of the measuring plate 4 away from the annular plate 7, and the measuring reference surface of the scale 5 is flush with the upper surface of the measuring plate 4.

[0048] Specifically, a height gauge is used as the scale 5, which is vertically fixed to the side of the measuring plate 4 away from the annular plate 7. Its measuring reference surface is flush with the surface of the measuring plate 4, ensuring that the zero point of the height gauge is consistent with the measuring reference surface and reducing measurement errors.

[0049] This installation method allows the height gauge to directly read the dimensional difference between the rotor body 3 and the measuring plate 4, quickly obtaining key dimensions such as the rotor's major diameter;

[0050] In the embodiment: the inner diameter of the annular plate 7 is adapted to the nominal diameter of the rotor body 3, and the annular plate 7 and the measuring plate 4 are detachably connected by bolts;

[0051] Specifically, the inner diameter of the annular plate 7 is adapted to the nominal diameter of the rotor body 3, which can fit tightly against the outer circumference of the rotor, assisting in the positioning of the measuring plate 4 and ensuring the stability of contact with the rotor during measurement.

[0052] The annular plate 7 and the measuring plate 4 are detachably connected by bolts. When measuring rotors of different specifications, the annular plate 7 with the corresponding inner ring diameter can be replaced, making the tooling suitable for various rotor sizes and expanding its application range.

[0053] In the embodiment: the measuring plate 4 is made of No. 45 steel plate, and its surface is ground, with a flatness error of no more than 0.02mm / m;

[0054] Specifically, measuring plate 4 is made of No. 45 steel plate, which has high strength and good rigidity, avoiding the impact of deformation under force on measurement accuracy; the surface is ground and the flatness error is no more than 0.02mm / m, ensuring the flatness of the upper surface of measuring plate 4 as the measurement reference surface, and reducing dimensional errors caused by uneven reference surface;

[0055] The high-precision measuring plate 4 provides a stable and accurate reference for rotor size measurement, further ensuring the reliability of the measurement data;

[0056] Working principle: The fixture is placed on the lathe guide rail 1. The height of the measuring platform is adjusted by adjusting the adjustable feet 8 at the four corners of the bottom of the support frame 6 to ensure that the measuring platform is in contact with the two highest points of the rotor, and the levelness of the measuring platform is calibrated at the same time. After calibration, the major diameter of the rotor is measured using a height gauge installed on the measuring platform. After measuring one point, the measuring platform can be lowered appropriately, and the plastic soft structure at the bottom of the adjustable feet 8 can be used to slide on the guide rail. Multiple measurements can be performed in the same way. The whole process does not require disassembling the rotor, which reduces the risk of rotor hoisting and manpower loss, and avoids the impact on machining accuracy caused by disassembly. Moreover, the measuring platform can be adapted to the measurement needs of rotors of different specifications by adjusting the feet 8.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for measuring the rotor dimensions of a single-screw pump / multistage pump, characterized in that, include: Support adjustment components, including: The support frame (6) has a frame structure; Four adjustable feet (8) are installed at the four corners of the bottom of the support frame (6). The adjustable feet (8) can extend and retract vertically to adjust the height. The bottom of the feet is provided with a soft plastic pad and can slide on the lathe guide rail (1) through the pad. Measurement components, including: The measuring plate (4) is horizontally set on the top of the support frame (6) to fit against the outside of the rotor body (3) to support the measurement; The annular plate (7) is fixed to the side of the measuring plate (4) near the rotor body (3) and is used to adapt and position itself to the outer periphery of the rotor body (3). A scale (5) is mounted on a measuring plate (4) and is used to read the dimensional measurement data of the rotor body (3); The tooling calibrates the level of the measuring plate (4) by adjusting the foot cup (8), so that the measuring plate (4) contacts the high point of the rotor body (3). The rotor body (3) can be dimensionally measured on the lathe guide rail (1) without disassembling the rotor body (3), and multi-point measurement can be achieved by sliding and adjusting the foot cup (8).

2. The single-screw pump / multi-stage pump rotor dimension measuring fixture according to claim 1, characterized in that: The adjustable foot cup (8) includes a screw and a base. One end of the screw is threaded to the bottom of the support frame (6), and the other end is fixed to the base. The thickness of the soft plastic pad at the bottom of the base is 3-5mm.

3. The single-screw pump / multi-stage pump rotor dimension measuring fixture according to claim 1, characterized in that: The scale (5) is a height gauge, which is fixed vertically to the side of the measuring plate (4) away from the annular plate (7), and the measuring reference surface of the scale (5) is flush with the upper surface of the measuring plate (4).

4. The single-screw pump / multi-stage pump rotor dimension measuring fixture according to claim 1, characterized in that: The inner diameter of the annular plate (7) is adapted to the nominal diameter of the rotor body (3), and the annular plate (7) and the measuring plate (4) are detachably connected by bolts.

5. The single-screw pump / multi-stage pump rotor dimension measuring fixture according to claim 1, characterized in that: The measuring plate (4) is made of No. 45 steel plate, and its surface is ground, with a flatness error of no more than 0.02 mm / m.

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