Diesel generator vibration detection equipment

Abstract

The utility model discloses a diesel generator vibration detection device in the related technical field of diesel generator vibration detection, which comprises a detection support box body and a detection support plate arranged above the detection support box body, and the outer edge of the upper plane of the detection support box body is provided with a matching installation groove. A fixed matching groove is formed in the width direction of the detection supporting plate, a fixing structure is installed in the fixed matching groove, a diesel generator body is placed on the detection supporting plate, and a protective cover is arranged above the detection supporting box body in a matched mode. According to the utility model, through the arrangement of the fixing structure, the supporting bottom plate of the diesel generator main body is fixedly installed on the detection supporting plate, only the bottom of the diesel generator main body is fixed, a normal use state is simulated, the test result fits the reality, and the vibration analyzer can be taken out from the detection supporting box body. And the influence of vibration generated in the working process of the diesel generator main body on the vibration analyzer is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of diesel generator vibration detection, specifically, it relates to a diesel generator vibration detection device. Background Technology

[0002] A diesel generator is a small power generation device that uses diesel fuel and a diesel engine as the prime mover to drive a generator to produce electricity. A complete unit typically consists of a diesel engine, generator, control box, fuel tank, starting and control batteries, protection devices, and emergency cabinet. Diesel generators generate vibrations during operation. Abnormal vibrations can lead to impact or fatigue-induced damage to the shaft system, posing a danger to the safe operation of the unit. Therefore, before a diesel generator leaves the factory, production personnel must conduct vibration testing to ensure that the generator's vibration amplitude meets relevant standards.

[0003] Existing vibration testing equipment for diesel generators cannot eliminate the noise generated during testing, which has a significant impact on the external environment. Furthermore, existing vibration testing equipment cannot test diesel generators of different specifications, resulting in poor practicality. Application number CN202420628803.0 discloses a vibration testing device for diesel generators that uses side clamps and a top plate to fix the generator under test for vibration testing. However, in actual use, diesel generators are not fixed all around and all over. Therefore, vibration testing performed with the generator fixed on all sides has a significant error compared to the vibration state during actual use.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a diesel generator vibration detection device. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows:

[0006] A diesel generator vibration testing device includes a testing support box and a testing support plate disposed on top of it. The outer edge of the upper plane of the testing support box has a mating mounting groove. The testing support plate has a fixing groove along its width, within which a fixing structure is installed. The diesel generator body is placed on the testing support plate. A protective cover is fitted above the testing support box. A sealing flange is provided at the lower edge of the protective cover, the dimensions of which are compatible with the dimensions of the mating mounting groove. A wire-passing hole is provided on the outer wall of the protective cover at a position corresponding to the fixing groove. A vibration analyzer is fitted to the testing support box, and the vibration analyzer is connected to a vibration sensor via a connecting wire for detecting vibration of the diesel generator body during operation.

[0007] As a further embodiment of this utility model: a sealing strip is provided in the mounting groove, sound insulation cotton is provided on the inner side wall of the protective cover, and a handle is provided on the top of the protective cover. The sealing strip is used to enhance the sealing performance between the protective cover and the detection support box.

[0008] As a further embodiment of this utility model: the fixing structure includes a sliding mating plate, a supporting mating block, an upper mating seat, a pressing fixing plate, a mating stud, and a locking nut. The sliding mating plate is installed in the fixing mating groove. The supporting mating block and the mating stud are fixedly arranged on the upper surface of the sliding mating plate. The sliding mating plate mates with the fixing mating groove to achieve vertical positioning of the fixing structure.

[0009] As a further embodiment of this utility model: the upper mating seat is a hollow structure, and a telescopic spring is provided between the top of the cavity of the upper mating seat and the top surface of the support mating block. The top surface of the upper mating seat is fixedly connected to the bottom surface of the pressing and fixing plate, and the other end of the pressing and fixing plate is pressed and set on the support base plate on which the diesel generator body is located. The fixing structure is used to fix the support base plate.

[0010] As a further improvement of this utility model: a locking nut is provided at the upper end of the mating stud, and a through hole adapted to the mating stud is provided on the clamping fixing plate. The clamping fixing plate has a trapezoidal structure, and the fixing mating groove has a convex structure, which effectively limits the fixing structure.

[0011] As a further improvement of this utility model: the vibration analyzer has a display screen, operation buttons and a power switch on its panel, a connection socket on its side, and multiple vibration sensors, which are respectively fixedly installed on the generator, the diesel engine and the support base plate, for vibration detection at different positions of the diesel generator body.

[0012] As a further improvement of this utility model: the detection support box is provided with a door, and side protective frames are symmetrically arranged on both sides of the support base plate. The side protective frames are used to protect the various components of the diesel generator body, and at the same time facilitate the transportation and relocation of the diesel generator body.

[0013] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0014] This invention uses a fixed structure to fix the support base plate of the diesel generator body onto the test support plate, fixing only the bottom of the diesel generator body to simulate normal use. The test results are consistent with reality, and the vibration analyzer can be removed from the test support box, avoiding the impact of vibration generated during the operation of the diesel generator body on the vibration analyzer.

[0015] This utility model has a fixed mating groove on the detection support plate. The fixed structure can be adjusted in position along the fixed mating groove to meet the vibration detection and fixing requirements of diesel generator bodies of different specifications. The mating structure of the support mating block, upper mating seat and telescopic spring on the fixed structure can be separated from the pressure fixing plate and the support base plate by slightly loosening the locking nut, so as to realize the adjustment of the position of the fixed structure.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is the main view of the utility model;

[0020] Figure 3This is a schematic diagram of the fixing structure of this utility model.

[0021] In the diagram: 1. Inspection support box; 2. Mounting groove; 3. Inspection support plate; 4. Fixing groove; 5. Fixing structure; 6. Vibration analyzer; 7. Connecting cable; 8. Protective cover; 9. Handle; 10. Wire hole; 11. Sealing flange; 12. Box door; 13. Connecting socket; 14. Display screen; 15. Diesel generator body; 16. Support base plate; 17. Side guard frame; 18. Sliding plate; 19. Support block; 20. Upper seat; 21. Telescopic spring; 22. Pressing plate; 23. Stud; 24. Locking nut; 25. Vibration sensor.

[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0024] like Figures 1 to 3 As shown, a diesel generator vibration testing device includes a testing support box 1 and a testing support plate 3 mounted on top of it. A mating mounting groove 2 is provided on the outer edge of the upper plane of the testing support box 1. A fixing mating groove 4 is provided in the width direction of the testing support plate 3, and a fixing structure 5 is installed within the fixing mating groove 4. A diesel generator body 15 is placed on the testing support plate 3. A protective cover 8 is provided above the testing support box 1. A sealing mating flange 11 is provided at the lower edge of the protective cover 8. The dimensions of the sealing mating flange 11 are compatible with the dimensions of the mating mounting groove 2. A wire through hole 10 is provided on the outer wall of the protective cover 8 at a position corresponding to the fixing mating groove 4. A vibration analyzer 6 is provided in conjunction with the testing support box 1. The vibration analyzer 6 is connected to a vibration sensor 25 via a connecting wire 7 to detect the vibration of the diesel generator body 15 during operation.

[0025] The mounting groove 2 is equipped with a sealing strip, the inner wall of the protective cover 8 is provided with sound insulation cotton, and the top of the protective cover 8 is provided with a handle 9. The sealing strip is used to enhance the sealing between the protective cover 8 and the test support box 1.

[0026] The fixed structure 5 includes a sliding mating plate 18, a supporting mating block 19, an upper mating seat 20, a pressing and fixing plate 22, a mating stud 23, and a locking nut 24. The sliding mating plate 18 is installed in the fixed mating groove 4. The supporting mating block 19 and the mating stud 23 are fixedly arranged on the upper surface of the sliding mating plate 18. The sliding mating plate 18 mates with the fixed mating groove 4, which can realize the vertical limiting of the fixed structure 5.

[0027] The upper mating seat 20 is a hollow structure. A telescopic spring 21 is provided between the top of the cavity of the upper mating seat 20 and the top surface of the support mating block 19. The top surface of the upper mating seat 20 is fixedly connected to the bottom surface of the pressing and fixing plate 22. The other end of the pressing and fixing plate 22 is pressed and set on the support base plate 16 where the diesel generator body 15 is located. The support base plate 16 is fixed by the fixing structure 5.

[0028] A locking nut 24 is provided at the upper end of the stud 23. The clamping and fixing plate 22 is provided with a through hole that matches the stud 23. The clamping and fixing plate has a trapezoidal structure. The fixing groove 4 has a convex structure to effectively limit the fixing structure 5.

[0029] The vibration analyzer 6 has a display screen 14, operation buttons, and a power switch on its panel. The vibration analyzer 6 has a connection socket on its side. Multiple vibration sensors 25 are installed on the generator, diesel engine, and support base plate 16 respectively to detect vibration at different positions of the diesel generator body 15.

[0030] The test support box 1 is equipped with a box door 12, and the support base plate 16 is symmetrically provided with side protective frames 17 on both sides. The side protective frames 17 are used to protect the various components of the diesel generator body 15, and at the same time facilitate the transportation and relocation of the diesel generator body 15.

[0031] The working principle of this utility model is as follows: When performing vibration testing on the main body 15 of the diesel generator, the vibration analyzer 6 is taken out from the testing support box 1 and placed on the side at a certain distance from the testing support box 1. The main body 15 of the diesel generator to be tested is placed on the testing support plate 3. The position of the fixed structure 5 is moved. During the movement, the sliding mating plate 18 slides along the fixed mating groove 4 and moves to the position where the pressing fixed plate 22 can effectively press the support base plate 16. The locking nut 24 is tightened. The locking nut 24 drives the pressing fixed plate 22 to move downward and contact and press against the top surface of the support base plate 16. During the pressing process, the upper mating seat 20 moves downward synchronously with the pressing fixed plate 22, and the telescopic spring 21 is compressed. When the test is completed, the locking nut 24 is loosened. Under the action of the return elastic force of the telescopic spring 21, the pressing fixed plate 22 separates from the support base plate 16, and the position of the fixed structure 5 along the fixed mating groove 4 can be easily adjusted.

[0032] After fixing the diesel generator body 15, the vibration sensor 25 is fixedly installed at different positions on the diesel generator body 15. The vibration sensor 25 is model VP-1210, which has high sensitivity and is suitable for environments with low vibration. The sensor is small in size and light in weight. It is equipped with a magnet at the bottom and can be attached to the engine cylinder head. It is very convenient to install and use. The sensor's signal cable is designed to withstand high temperatures and can work normally and stably inside the engine box. The end of the connecting wire 7 passes through the wire hole 10 from inside the protective cover 8 to the outside. The other end of the connecting wire 7 is connected to the connection socket 13 on the vibration analyzer 6. After completing the test preparation, the vibration analyzer 6 and the diesel generator body 15 can be turned on to perform vibration test. The protective cover 8 is closed on the outside of the test support box 1 for sound insulation protection.

[0033] This utility model has a reasonable structural design and is easy to install and use. By setting a fixing structure 5, the support base plate 16 of the diesel generator body 15 is fixedly installed on the test support plate 3. Only the bottom of the diesel generator body 15 is fixed, simulating the normal use state. The test results are close to reality. The vibration analyzer 6 can be taken out from the test support box 1, avoiding the influence of the vibration generated by the diesel generator body 15 during operation on the vibration analyzer 6. A fixing groove 4 is set on the test support plate 3. The fixing structure 5 can be adjusted along the fixing groove 4 to meet the vibration test fixing requirements of diesel generator bodies 15 of different specifications. The cooperation structure of the support mating block 19, the upper mating seat 20 and the telescopic spring 21 set on the fixing structure 5 can be separated from the pressing fixing plate 22 and the support base plate 16 by slightly loosening the locking nut 24, so as to realize the adjustment of the position of the fixing structure 5.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A vibration testing device for a diesel generator, comprising a testing support housing (1) and a testing support plate (3) disposed thereon, characterized in that, The outer edge of the upper plane of the detection support box (1) is provided with a mating installation groove (2), the width direction of the detection support plate (3) is provided with a fixed mating groove (4), a fixed structure (5) is installed in the fixed mating groove (4), the main body of the diesel generator (15) is placed on the detection support plate (3), a protective cover (8) is provided on the upper part of the detection support box (1), a sealing mating flange (11) is provided at the lower edge of the protective cover (8), the size of the sealing mating flange (11) is compatible with the size of the mating installation groove (2), a wire hole (10) is provided on the outer wall of the protective cover (8) at the position corresponding to the fixed mating groove (4), a vibration analyzer (6) is provided on the detection support box (1), and the vibration analyzer (6) is connected to the vibration sensor (25) through a connecting line (7).

2. The diesel generator vibration detection device according to claim 1, characterized in that, A sealing strip is provided in the mounting groove (2), sound insulation cotton is provided on the inner side wall of the protective cover (8), and a handle (9) is provided on the top of the protective cover (8).

3. The diesel generator vibration detection device according to claim 2, characterized in that, The fixed structure (5) includes a sliding mating plate (18), a supporting mating block (19), an upper mating seat (20), a pressing and fixing plate (22), a mating stud (23), and a locking nut (24). The sliding mating plate (18) is installed in the fixed mating groove (4). The supporting mating block (19) and the mating stud (23) are fixedly arranged on the upper surface of the sliding mating plate (18).

4. The diesel generator vibration detection device according to claim 3, characterized in that, The upper mating seat (20) is a hollow structure. A telescopic spring (21) is provided between the top of the cavity of the upper mating seat (20) and the top surface of the support mating block (19). The top surface of the upper mating seat (20) is fixedly connected to the bottom surface of the pressing and fixing plate (22). The other end of the pressing and fixing plate (22) is pressed and set on the support base plate (16) where the diesel generator body (15) is located.

5. The diesel generator vibration detection device according to claim 4, characterized in that, The upper end of the mating stud (23) is provided with a locking nut (24), and the clamping fixing plate (22) is provided with a through hole that matches the mating stud (23). The clamping fixing plate (22) has a trapezoidal structure, and the fixing mating groove (4) has a convex structure.

6. The diesel generator vibration detection device according to claim 5, characterized in that, The vibration analyzer (6) has a display screen (14), operation buttons and a power switch on its panel. The vibration analyzer (6) has a connection socket (13) on its side. Multiple vibration sensors (25) are installed and fixedly mounted on the generator, the diesel engine and the support base plate (16).

7. The diesel generator vibration detection device according to claim 6, characterized in that, The detection support box (1) is provided with a box door (12), and the support base plate (16) is provided with side protective frames (17) on both sides.

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