Novel universal test bench for rotating machine

Abstract

The utility model discloses a novel rotating machine general test bed, and relates to the technical field of test devices, the novel rotating machine general test bed comprises a bottom plate, a supporting structure, a vibration isolation spring and a general bedplate, the supporting structure is fixed on the bottom plate, the general bedplate is arranged on the supporting structure, and the vibration isolation spring is fixed on the general bedplate. The universal bedplate is connected with the supporting structure through a vibration isolation spring, and the universal bedplate is provided with a series of bolt holes used for being connected with a to-be-tested rotating machine. The vibration isolation springs with variable rigidity are arranged, so that the dynamic characteristics of the universal bedplate are adjustable, and the universal bedplate can meet the requirements of machines with different working frequencies. A series of bolt holes are formed in the universal bedplate, so that small-sized, medium-sized or large-sized rotating machines and units with different vibration frequencies and different mounting requirements can be mounted on the universal bedplate, and better vibration isolation and stable test conditions can be obtained on the test bed.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, specifically to a novel universal testing bench for rotating machines. Background Technology

[0002] Large rotating machines typically require no-load operation after trial production or during factory testing to assess their performance indicators and characteristics. During testing, these large rotating machines simulate various operating conditions, placing extremely high demands on the test bench. Currently, the support structure of test benches for large rotating equipment is generally designed for individual test pieces, employing a fixed structure. Once constructed, its dynamic characteristics are essentially fixed, limiting its adaptability to a narrow range of machine rotation frequencies. Different machines have different installation locations and conditions, making fixed-structure test benches unsuitable for adapting to varying installation requirements. Utility Model Content

[0003] The main objective of this application is to provide a novel universal test bench for rotating machines, which aims to solve the aforementioned technical problems.

[0004] The technical solution adopted in this application is as follows:

[0005] A novel universal test bench for rotating machines includes a base plate, a support structure, vibration isolation springs, and a universal platform. The support structure is fixed to the base plate, and the universal platform is disposed on the support structure. The universal platform and the support structure are connected by vibration isolation springs. The universal platform is provided with a series of bolt holes for connecting the rotating machine to be tested.

[0006] Optionally, the universal platform is assembled from several prefabricated platform modules.

[0007] Optionally, the platform module has protrusions and slots that can be plugged into each other on its two opposite sides, and the platform module has threaded connection holes that pass through the protrusions and slots.

[0008] Optionally, the support structure includes a frame column fixed to the base plate and a frame beam fixed to the top of the frame column, and the vibration isolation spring is fixed to the frame beam and the frame column.

[0009] Optionally, the supporting structure can be any one of a concrete structure, a steel structure, or a combination of concrete and steel structures.

[0010] Optionally, the base plate is a concrete base plate.

[0011] Optionally, the universal platform is provided with several holes to facilitate the connection of the rotating machine under test with other auxiliary machines or pipelines.

[0012] Optionally, the base plate is placed on a foundation or supporting piles.

[0013] Optionally, the base plate can be a flat concrete plate or a beam-slab type.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] This application proposes a novel universal test bench for rotating machines. By incorporating vibration-damping springs with variable stiffness, the dynamic characteristics of the universal test bench become adjustable, adapting to the needs of machines operating at different frequencies. Through a series of bolt holes on the universal test bench, small, medium, and large rotating machines, regardless of their vibration frequencies or installation requirements, can be installed on the universal test bench, achieving good vibration isolation and stable testing conditions. Attached Figure Description

[0016] Figure 1 A front view of the novel universal test bench for rotating machines provided in the embodiments of this application;

[0017] Figure 2 A top view of the novel universal test bench for rotating machines provided in the embodiments of this application;

[0018] Figure 3 A side view of a novel universal test bench for rotating machines provided in an embodiment of this application;

[0019] Figure 4 This is a structural diagram of the platform module.

[0020] Explanation of the labels in the attached drawings:

[0021] 1-Base plate, 2-Supporting structure, 201-Frame column, 202-Frame beam, 3-Vibration isolation spring, 4-Universal platform, 401-Platform module, 402-Boss, 403-Slot, 404-Threaded connection hole, 5-Bolt hole, 6-Hole, 7-Foundation pile. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0026] See attached document Figures 1 to 3As shown in the figure, this application provides a novel universal test bench for rotating machines, including a base plate 1, a support structure 2, vibration isolation springs 3, and a universal platform 4. The base plate 1 is made of concrete and can be a concrete slab or beam-slab type. It can be placed on a flat foundation or on supporting piles 7, ensuring that the base plate 1 is level. The support structure 2 is fixed to the upper surface of the base plate 1. The support structure 2 can be any of a concrete structure, a steel structure, or a concrete-steel combination structure, specifically including frame columns 201 and frame beams 202. The frame columns 201 are fixed to the base plate 1 either by bolts or integrally formed. The frame beams 202 are fixed to the frame columns 201. The vibration isolation springs 3 are fixed to the frame beams 202 and frame columns 201 by bolts. The vibration isolation springs 3 can be metal springs, air springs, or a combination of rubber springs and metal springs. By adjusting the stiffness or damping coefficient of the vibration isolation springs 3, different dynamic characteristics (stiffness and damping) can be obtained to meet the needs of the test device. The universal platform 4 is fixed to the vibration isolation spring 3 by bolts. The universal platform 4 is provided with a series of bolt holes 5 for connecting the rotating machine under test. Different machines are used with different mounting workpieces and are fixed to the universal platform 4 through the reserved bolt holes 5 to achieve the versatility of the platform. At the same time, the universal platform 4 can be provided with several holes 6 as needed to facilitate the connection of the rotating machine under test with other auxiliary machines or pipelines.

[0027] In a preferred embodiment, the universal platform 4 can be assembled from multiple prefabricated platform modules 401, such as... Figure 4 As shown, each pair of opposite sides of the platform module 401 is provided with a boss 402 and a slot 403 that can be inserted into each other. The platform module 401 is provided with a threaded connection hole 404 that passes through the boss 402 and the slot 403. By inserting the boss 402 into the slot 403 and then screwing a bolt into the threaded connection hole 404, the adjacent platform modules 401 are locked. Thus, a universal platform 4 of appropriate size can be assembled as needed. The platform module 401 can be used to facilitate transportation and installation.

[0028] It can be seen that the novel universal test bench for rotating machines provided in this application has the following advantages:

[0029] (1) The test platform has good versatility.

[0030] The addition of variable stiffness vibration isolation springs makes the dynamic characteristics of the test bench adjustable, adapting to the needs of machines operating at different frequencies. A series of bolt holes on the universal test bench accommodate the installation requirements of various equipment, including small, medium, and large rotating machines, units with different vibration frequencies and installation requirements. All can be mounted on the universal test bench, achieving good vibration isolation and stable testing conditions.

[0031] (2) Improve test accuracy

[0032] Effective vibration isolation allows for more accurate adjustment of the foundation's dynamic characteristics, minimizing the impact of the foundation itself and external interference on test results. This results in more accurate and reliable performance test data for rotating machines, contributing to their research and development and quality control.

[0033] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A novel universal testing bench for rotating machines, characterized in that, It includes a base plate, a support structure, vibration isolation springs, and a universal platform. The support structure is fixed to the base plate, and the universal platform is disposed on the support structure. The universal platform and the support structure are connected by vibration isolation springs. The universal platform is provided with a series of bolt holes for connecting the rotating machine under test.

2. The novel universal test bench for rotating machines according to claim 1, characterized in that, The universal platform is assembled from several prefabricated platform modules.

3. The novel universal test bench for rotating machines according to claim 1, characterized in that, The universal platform is assembled from multiple prefabricated platform modules. Each pair of opposite sides of the platform module is provided with a boss and a slot that can be inserted into each other. The platform module is provided with threaded connection holes that pass through the boss and the slot.

4. The novel universal test bench for rotating machines according to claim 1, characterized in that, The support structure includes a frame column fixed to the base plate and a frame beam fixed to the top of the frame column, and the vibration isolation spring is fixed to the frame beam and the frame column.

5. The novel universal test bench for rotating machines according to claim 4, characterized in that, The supporting structure can be any one of a concrete structure, a steel structure, or a combination of concrete and steel.

6. The novel universal test bench for rotating machines according to claim 1, characterized in that, The base plate is a concrete base plate.

7. The novel universal test bench for rotating machines according to claim 1, characterized in that, The universal test bench has several holes to facilitate the connection of the rotating machine under test with auxiliary equipment or pipelines.

8. The novel universal test bench for rotating machines according to claim 1, characterized in that, The base plate is placed on the foundation or supporting piles.

9. The novel universal test bench for rotating machines according to claim 1, characterized in that, The base plate is either a concrete flat plate or a beam-slab type.

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