Base modal structure and dynamometer motor

By using a tenon-and-mortise joint structure to weld horizontal and vertical steel plates in the dynamometer motor base, the problem of unreliability in traditional base modal analysis is solved, and a higher level of structural modality and resonance point is achieved to avoid engine test resonance.

CN223637108UActive Publication Date: 2025-12-05SHANGHAI AIFU YIWEI TESTING EQUIP CO LTD
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Patent Information

Application Number
CN202423266409.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-12-05
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

The traditional square steel tube structure of the dynamometer motor base is unreliable in modal analysis in the X, Y, and Z directions, which often leads to resonance problems during engine testing.

Method used

The base is reinforced by welding a mortise and tenon joint structure between horizontal and vertical steel plates. The specific implementation method includes mortise and tenon joints and welding connections between the top horizontal steel plate, the first bottom horizontal steel plate, the outer vertical steel plate, the middle vertical steel plate, and the connecting steel plates.

Benefits of technology

The structural modes of the base in the X, Y, and Z directions have been improved, and the product resonance point reaches 9000 rpm, which meets the requirement of avoiding the system resonance point in engine bench testing.

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Abstract

The utility model provides a base modal structure and a dynamometer motor. The base modal structure comprises a top horizontal steel plate, a first bottom horizontal steel plate, an outer side vertical steel plate, a middle vertical steel plate and a second bottom horizontal steel plate. The outer side vertical steel plates and the middle vertical steel plates are arranged in parallel, and the upper ends of the outer side vertical steel plates and the upper ends of the middle vertical steel plates are connected with top horizontal steel plates in a mortise and tenon inserting mode and then welded. The lower ends of the outer side vertical steel plates and the middle vertical steel plates are connected with a first bottom horizontal steel plate and a second bottom horizontal steel plate in a mortise and tenon inserting mode and then welded. The horizontal steel plates and the vertical steel plates are welded after the tenon-and-mortise inserting structure is adopted between the horizontal steel plates and the vertical steel plates, so that the structural mode of a product reaches 150Hz, the resonance point of the product reaches 9000r / min, and the requirement of avoiding the resonance point of a system in the testing process of an existing engine pedestal is met.
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Description

TECHNICAL FIELD

[0001] The utility model relates to dynamometer structure field, concretely, bottom base mode structure and dynamometer. BACKGROUND

[0002] The current traditional dynamometer base adopts square steel pipe joint welding structure, because the square steel pipe is hollow, leads to unreliable in X.Y.Z three direction mode analysis, and resonance problem often appears in engine test. UTILITY MODEL CONTENTS

[0003] In view of the defects in the prior art, the utility model aims at providing a kind of bottom base mode structure and dynamometer.

[0004] According to the bottom base mode structure provided by the utility model, it comprises: top horizontal steel plate, first bottom horizontal steel plate, outer vertical steel plate, intermediate vertical steel plate and second bottom horizontal steel plate;

[0005] The outer vertical steel plate and the intermediate vertical steel plate are parallelly arranged, the upper end of the outer vertical steel plate and the intermediate vertical steel plate is connected with the top horizontal steel plate by mortise and tenon joint and then welded, and the lower end of the outer vertical steel plate and the intermediate vertical steel plate is connected with the first bottom horizontal steel plate and the second bottom horizontal steel plate by mortise and tenon joint and then welded.

[0006] Preferably, connecting steel plates are welded between the outer vertical steel plate and the intermediate vertical steel plate and between adjacent intermediate vertical steel plates, and the connecting steel plates are welded with the top horizontal steel plate and the first bottom horizontal steel plate.

[0007] Preferably, mortise and tenon joint interfaces are arranged on the top horizontal steel plate, and the top of the outer vertical steel plate and the intermediate vertical steel plate is connected with the top horizontal steel plate by mortise and tenon joint interfaces of the top horizontal steel plate.

[0008] Preferably, mortise and tenon joint interfaces are arranged on the first bottom horizontal steel plate, and the bottom of the outer vertical steel plate and the intermediate vertical steel plate is connected with the first bottom horizontal steel plate by mortise and tenon joint interfaces of the first bottom horizontal steel plate.

[0009] Preferably, mortise and tenon joint interfaces are arranged on the second bottom horizontal steel plate, and the middle of the bottom of the outer vertical steel plate and the intermediate vertical steel plate is connected with the second bottom horizontal steel plate by mortise and tenon joint interfaces of the second bottom horizontal steel plate.

[0010] Preferably, mortise and tenon joint interfaces are arranged on the outer vertical steel plate and the intermediate vertical steel plate, and the connecting steel plates are connected with the outer vertical steel plate and / or the intermediate vertical steel plate by mortise and tenon joint interfaces of the outer vertical steel plate and / or the intermediate vertical steel plate.

[0011] Preferably, the intermediate vertical steel plates are provided in plurality and parallel to each other, and the two sides of the plurality of the intermediate vertical steel plates are provided with outer vertical steel plates.

[0012] Preferably, the outer vertical steel plates and the intermediate vertical steel plates are provided in trapezoidal shape, and a groove is provided at the middle of the bottom of the trapezoidal shape so that the two sides of the bottom of the trapezoidal shape present extended feet.

[0013] Preferably, the first bottom horizontal steel plate is installed at the position of the extended feet of the trapezoidal shape, and the second bottom horizontal steel plate is installed at the position of the middle groove of the bottom of the trapezoidal shape.

[0014] Compared with the prior art, the base mode structure of the utility model has the beneficial effects as follows:

[0015] The utility model is welded after adopting the mortise and tenon joint structure between the horizontal steel plate and the vertical steel plate, the structural strength of the base in X, Y and Z directions is strengthened, the product structural mode reaches 150 Hz, the product resonance point reaches 9000 rpm, and the demand of avoiding the system resonance point in the existing engine bench test process is met. BRIEF DESCRIPTION OF DRAWINGS

[0016] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of the non-restrictive embodiments with reference to the accompanying drawings:

[0017] Fig. 1 It is a schematic view of the overall structure of the base mode structure;

[0018] Fig. 2 It is a sectional view of the base mode structure;

[0019] In the drawings:

[0020] DETAILED DESCRIPTION

[0021] The utility model will be described in detail below in combination with specific embodiments. The following embodiments will help the person skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that, for the person skilled in the art, without departing from the concept of the utility model, a number of changes and improvements can be made. These all belong to the protection scope of the utility model.

[0022] The embodiment comprises: a top horizontal steel plate 1, a first bottom horizontal steel plate 2, an outer vertical steel plate 3, an intermediate vertical steel plate 4, a connecting steel plate 5, and a second bottom horizontal steel plate 7; the outer vertical steel plate 3 and the intermediate vertical steel plate 4 are connected to the top horizontal steel plate 1, the first bottom horizontal steel plate 2, and the second bottom horizontal steel plate 7 through mortise-tenon joint interfaces 6, and then welded, and then reinforced again through welding of the connecting steel plate 5. The embodiment adopts mortise-tenon joint interfaces between the horizontal steel plate and the vertical steel plate, and then welds, so that the product structure mode reaches 150 Hz, the product resonance point reaches 9000 rpm, and the demand of avoiding system resonance point in the existing engine bench test process is met.

[0023] As shown in Figs. 1-2 The outer vertical steel plate 3 and the intermediate vertical steel plate 4 are arranged in parallel, the upper end of the outer vertical steel plate 3 and the intermediate vertical steel plate 4 is connected to the top horizontal steel plate 1 through mortise-tenon joint, and then welded, the lower end of the outer vertical steel plate 3 and the intermediate vertical steel plate 4 is connected to the first bottom horizontal steel plate 2 and the second bottom horizontal steel plate 7 through mortise-tenon joint, and then welded. The outer vertical steel plate 3 and the intermediate vertical steel plate 4 are connected to the connecting steel plate 5 through welding, and the connecting steel plate 5 is connected to the top horizontal steel plate 1 and the first bottom horizontal steel plate 2 through welding.

[0024] Specifically, the top horizontal steel plate 1 is provided with mortise-tenon joint interfaces 6, the top of the outer vertical steel plate 3 and the intermediate vertical steel plate 4 is connected to the top horizontal steel plate 1 through the mortise-tenon joint interfaces 6 of the top horizontal steel plate 1. The first bottom horizontal steel plate 2 is provided with mortise-tenon joint interfaces 6, the bottom of the outer vertical steel plate 3 and the intermediate vertical steel plate 4 is connected to the first bottom horizontal steel plate 2 through the mortise-tenon joint interfaces 6 of the first bottom horizontal steel plate 2. The second bottom horizontal steel plate 7 is provided with mortise-tenon joint interfaces 6, the middle of the bottom of the outer vertical steel plate 3 and the intermediate vertical steel plate 4 is connected to the second bottom horizontal steel plate 7 through the mortise-tenon joint interfaces 6 of the second bottom horizontal steel plate 7. The outer vertical steel plate 3 and the intermediate vertical steel plate 4 are provided with mortise-tenon joint interfaces 6, and the connecting steel plate 5 is connected to the outer vertical steel plate 3 and / or the intermediate vertical steel plate 4 through the mortise-tenon joint interfaces 6 of the outer vertical steel plate 3 and / or the intermediate vertical steel plate 4.

[0025] In an embodiment, the intermediate vertical steel plate 4 is provided with a plurality of parallel arrangements, and the two sides of the plurality of intermediate vertical steel plates 4 are provided with outer vertical steel plates 3.

[0026] In an embodiment, the outer vertical steel plate 3 and the intermediate vertical steel plate 4 are arranged in a trapezoidal shape, a groove is arranged at the middle position of the bottom of the trapezoidal shape, so that the two sides of the bottom of the trapezoidal shape present extended foot portions. The first bottom horizontal steel plate 2 is arranged at the extended foot portion position of the trapezoidal shape, and the second bottom horizontal steel plate 7 is arranged at the middle groove position of the bottom of the trapezoidal shape.

[0027] In the description of the present application, it needs to be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] The specific embodiments of the present application are described above. It needs to be understood that the present application is not limited to the specific embodiments described above, and various changes or modifications can be made by those skilled in the art within the scope of the claims, which does not affect the essential content of the present application. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A base mode structure, characterized by, The application relates to a base mode structure, which comprises a top horizontal steel plate (1), a first bottom horizontal steel plate (2), outer side vertical steel plates (3), intermediate vertical steel plates (4) and a second bottom horizontal steel plate (7). The outer side vertical steel plates (3) and the intermediate vertical steel plates (4) are arranged in parallel, the upper ends of the outer side vertical steel plates (3) and the intermediate vertical steel plates (4) are connected to the top horizontal steel plate (1) through tenon-and-mortise insertion and then welded, and the lower ends of the outer side vertical steel plates (3) and the intermediate vertical steel plates (4) are connected to the first bottom horizontal steel plate (2) and the second bottom horizontal steel plate (7) through tenon-and-mortise insertion and then welded. Connecting steel plates (5) are welded between the outer side vertical steel plates (3) and the intermediate vertical steel plates (4) and between adjacent intermediate vertical steel plates (4), and the connecting steel plates (5) are welded to the top horizontal steel plate (1) and the first bottom horizontal steel plate (2).

2. The base mode structure of claim 1, wherein: Tenon-and-mortise insertion interfaces (6) are arranged on the top horizontal steel plate (1), and the top portions of the outer side vertical steel plates (3) and the intermediate vertical steel plates (4) are connected to the top horizontal steel plate (1) through the tenon-and-mortise insertion interfaces (6) of the top horizontal steel plate (1).

3. The base mode structure of claim 1, wherein: Tenon-and-mortise insertion interfaces (6) are arranged on the first bottom horizontal steel plate (2), and the bottom portions of the outer side vertical steel plates (3) and the intermediate vertical steel plates (4) are connected to the first bottom horizontal steel plate (2) through the tenon-and-mortise insertion interfaces (6) of the first bottom horizontal steel plate (2).

4. The base mode structure of claim 1, wherein: Tenon-and-mortise insertion interfaces (6) are arranged on the second bottom horizontal steel plate (7), and the middle portions of the bottom portions of the outer side vertical steel plates (3) and the intermediate vertical steel plates (4) are connected to the second bottom horizontal steel plate (7) through the tenon-and-mortise insertion interfaces (6) of the second bottom horizontal steel plate (7).

5. The base mode structure of claim 1, wherein: Tenon-and-mortise insertion interfaces (6) are arranged on the outer side vertical steel plates (3) and the intermediate vertical steel plates (4), and the connecting steel plates (5) are connected to the outer side vertical steel plates (3) and / or the intermediate vertical steel plates (4) through the tenon-and-mortise insertion interfaces (6) of the outer side vertical steel plates (3) and / or the intermediate vertical steel plates (4).

6. The base mode structure of claim 2, wherein: The intermediate vertical steel plates (4) are arranged in parallel, and outer side vertical steel plates (3) are arranged on the two sides of the plurality of intermediate vertical steel plates (4).

7. The base mode structure of claim 1, wherein: The outer side vertical steel plates (3) and the intermediate vertical steel plates (4) are arranged in a trapezoidal shape, and a groove is arranged at the middle position of the bottom of the trapezoidal shape so that the two sides of the bottom of the trapezoidal shape present extended foot portions.

8. The base mode structure of claim 1, wherein: The first bottom horizontal steel plate (2) is arranged at the position of the extended foot portions of the trapezoidal shape, and the second bottom horizontal steel plate (7) is arranged at the middle groove position of the bottom of the trapezoidal shape.

9. The base mode structure of claim 8, wherein: The base mode structure is used.

10. A dynamometer motor characterized by: ​