CN220490384U - Device for improving structural mode - Google Patents
Device for improving structural mode Download PDFInfo
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- CN220490384U CN220490384U CN202322132672.5U CN202322132672U CN220490384U CN 220490384 U CN220490384 U CN 220490384U CN 202322132672 U CN202322132672 U CN 202322132672U CN 220490384 U CN220490384 U CN 220490384U
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- 238000003466 welding Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000035882 stress Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
The utility model provides a device for improving structural modes, which comprises: the device comprises an L bracket, an upper mounting plate, a front mounting plate, a cover plate, a first T-shaped nut, a second T-shaped nut, a gasket, a first screw, a second screw, a third screw, a fourth screw, a fifth screw and a sixth screw; the L bracket is fixed on the T-shaped groove table surface of the test table base through a first T-shaped nut, a second T-shaped nut, a gasket and a first screw; the upper mounting plate is fixed on the L bracket through a second screw; the front mounting plate is connected with the L bracket through a fifth screw and a sixth screw; the cover plate is connected with the front vertical plate and the side vertical plate of the L bracket through a third screw and a fourth screw respectively. According to the scheme, the bottom of the L bracket is partially hollowed, so that the mass is reduced by 20kg under the condition that the mode is not reduced.
Description
Technical Field
The utility model relates to the technical field of structural modes, in particular to a device for improving the structural mode.
Background
In the running process of the motor, the dynamic unbalance mass of the shafting generates first-order exciting force, so that the mode of the test table is required to avoid a rotating speed area of the motor. The structural mode of the test bench of the motor at 6000rpm is only required to be not less than 100Hz, while the structural mode of the test bench of the motor at 25000rpm is required to be higher than 417Hz.
Patent document CN115680948A (application number: CN 202211155343.6) discloses a fixing structure for improving the single mode of an EGR valve, comprising a first hanging angle, a second hanging angle, a boss and a fixing component; the first hanging angle and the second hanging angle are arranged on the EGR valve body, the boss is arranged on the engine body, a gap is reserved between the first hanging angle and the second hanging angle, the boss is located in the gap, and the fixing assembly is used for fixedly connecting the boss with the first hanging angle and the second hanging angle. However, this patent fails to meet the current demand.
Disclosure of Invention
In view of the drawbacks of the prior art, an object of the present utility model is to provide a device for improving structural modes.
The device for improving the structural mode provided by the utility model comprises the following components: the device comprises an L bracket, an upper mounting plate, a front mounting plate, a cover plate, a first T-shaped nut, a second T-shaped nut, a gasket, a first screw, a second screw, a third screw, a fourth screw, a fifth screw and a sixth screw;
the L bracket is fixed on the T-shaped groove table surface of the test table base through a first T-shaped nut, a second T-shaped nut, a gasket and a first screw;
the upper mounting plate is fixed on the L bracket through a second screw;
the front mounting plate is connected with the L bracket through a fifth screw and a sixth screw;
the cover plate is connected with the front vertical plate and the side vertical plate of the L bracket through a third screw and a fourth screw respectively.
Preferably, the first T-nut and the second T-nut are long nuts.
Preferably, the first T-shaped nut and the second T-shaped nut are made of quenched steel.
Preferably, a plurality of threaded holes are arranged at the bottom of the L bracket.
Preferably, the thickness of the bottom plate of the L bracket is 50mm, the thickness of the front vertical plate is 60mm, the thickness of the connecting part of the two side vertical plates and the front vertical plate is 70mm, and the thickness of the mounting position of the side vertical plates and the upper mounting plate is 40mm; two long holes are formed in the middle of the bottom plate and are not connected with other parts, the length of each long hole is 215mm, and the width of each long hole is 80mm.
Preferably, the material of the L bracket is Q235-A.
Preferably, the front vertical plate, the side vertical plate and the bottom plate support of the L support are welded in a connecting mode, the welding lines are continuous, the thickness of all welding legs is not less than 8mm, the post-welding aging treatment is carried out, and the finish machining is carried out after the welding stress is eliminated.
Preferably, the distance between the vertical plates at the two sides of the L bracket is 260mm, the height of the vertical plates is 350mm, and the maximum height of the front panel is 420mm.
Preferably, the L bracket is additionally provided with a middle vertical plate, the two side vertical plates are partially cut off, and the middle vertical plate are used as the mounting surface of the upper mounting plate together.
Preferably, long holes are formed in the positions, close to the front vertical plate of the L bracket, of the upper middle parts of the vertical plates on the two sides of the L bracket to remove materials, and the long holes are 100mm in size and 40mm in width.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The original structural mode is 330Hz, the position and thickness of the vertical plate are adjusted, and the mode is increased to 497Hz;
(2) The connection rigidity is critical to the influence of the mode of the integrated equipment, so that the rib plates are removed, the specification and the number of the connecting bolts are increased, and the mode is improved to 522Hz;
(3) The bottom of the L bracket is partially hollowed, so that the mass is reduced by 20kg under the condition that the mode is not reduced.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a diagram of the overall structure of the present utility model;
FIG. 2 is a diagram of the overall structure of the present utility model;
FIG. 3 is a schematic structural view of an L-bracket;
FIG. 4 is a schematic structural view of an L-bracket;
FIG. 5 is a schematic structural view of an L-bracket;
FIG. 6 is a schematic structural view of an L-bracket;
wherein: 1-L bracket; 2-an upper mounting plate; 3-a front mounting plate; 4-cover plate; 5-a first T-nut; 6-a second T-nut; 7-a gasket; 8-a first screw; 9-a second screw; 10-a third screw; 11-fourth screw; 12-fifth screw; 13-sixth screw.
Detailed Description
The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.
Examples
Referring to fig. 1 and 2, the present utility model provides a device for improving structural mode, including: the device comprises an L bracket 1, an upper mounting plate 2, a front mounting plate 3, a cover plate 4, a first T-shaped nut 5, a second T-shaped nut 6, a gasket 7, a first screw 8, a second screw 9, a third screw 10, a fourth screw 11, a fifth screw 12 and a sixth screw 13;
the L bracket 1 is fixed on a T-shaped groove table surface of the test table base through a gasket 7, a first screw 8, a first T-shaped nut 5 and a second T-shaped nut 6;
the upper mounting plate 2 is fixed on the L bracket 1 through a second screw 9, and the upper mounting plate 2 is used for mounting a bearing seat of a rack shafting.
The cover plate 4 is respectively connected with three vertical plates of the L bracket 1 through a third screw 10 and a fourth screw 11;
the front mounting plate 3 is used for fixedly mounting a tested motor, and is connected with the L bracket 1 through a fifth screw 12 and a sixth screw 13.
A first T-nut 5 and a second T-nut 6 are long nuts in order to increase the contact area with the T-groove; the first T-shaped nut 5 and the second T-shaped nut 6 adopt quenching tool steel, so as to improve the strength of the nuts; the bottom of the L bracket 1 is provided with as many threaded holes as possible. Through the above three points, the connection rigidity of the L bracket 1 is improved to the maximum.
The upper mounting plate 2 is a mounting interface plate of a device other than the structure, the upper mounting plate is mounted on the L-shaped bracket 1 through the second screw 9, the front mounting plate 3 is fixed on the L-shaped bracket 1 through the fifth screw 12 and the sixth screw 13, and the screws are distributed on the interface plate, so that the connection rigidity of the mounting interface plate between the L-shaped brackets can be improved.
The cover plate 4 connects the three vertical plates of the L bracket 1 through the third screw 10 and the fourth screw 11, so that the overall rigidity of the L bracket 1 is improved, and meanwhile, the safety protection shielding is provided for a rotating piece connected with a bearing seat arranged on the upper mounting plate 2.
The connection rigidity has a significant influence on the improvement of the structural mode of the assembly body system, so that the connection rigidity is considered to be improved as much as possible in the design process, and the system rigidity of the assembly body is improved.
The thickness and the position of the vertical plate of the L bracket 1 have obvious influence on the mode of the L bracket 1, meanwhile, the proper thickness, shape and position are selected in consideration of weight reduction, and the steel plate is locally removed at the position with little influence on the mode, so that the minimum quality meeting the mode requirement is achieved.
3-6, the thickness of the bottom plate of the L bracket 1 is 50mm, the thickness of the front vertical plate is 60mm, the thickness of the connecting part of the two side vertical plates and the front vertical plate is 70mm, and the thickness of the mounting position of the side vertical plates and the upper mounting plate 2 is 40mm; two long holes are formed in the middle of the bottom plate and are not connected with other parts, the length of each long hole is 215mm, and the width of each long hole is 80mm.
The material of the L bracket 1 is Q235-A.
The front vertical plate, the side vertical plates and the bottom plate support of the L support 1 are welded in a connecting mode, the welding lines are continuous, the thickness of all welding legs is not less than 8mm, the post-welding aging treatment is carried out, and the finish machining is carried out after the welding stress is eliminated.
The distance between the vertical plates at the two sides of the L bracket 1 is 260mm, the height of the vertical plates is 350mm, and the maximum height of the front panel is 420mm.
The L bracket 1 is added with a middle vertical plate, the two side vertical plates are partially cut off, and the middle vertical plate are used as the mounting surface of the upper mounting plate together.
And long holes are formed in the positions, close to the front vertical plate of the L bracket 1, of the upper middle parts of the vertical plates on the two sides of the L bracket 1 to remove materials, and the long holes are 100mm in size and 40mm in width.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.
The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. An apparatus for improving structural modes, comprising: the device comprises an L bracket (1), an upper mounting plate (2), a front mounting plate (3), a cover plate (4), a first T-shaped nut (5), a second T-shaped nut (6), a gasket (7), a first screw (8), a second screw (9), a third screw (10), a fourth screw (11), a fifth screw (12) and a sixth screw (13);
the L bracket (1) is fixed on a T-shaped groove table surface of the test table base through a first T-shaped nut (5), a second T-shaped nut (6), a gasket (7) and a first screw (8);
the upper mounting plate (2) is fixed on the L bracket (1) through a second screw (9);
the front mounting plate (3) is connected with the L bracket (1) through a fifth screw (12) and a sixth screw (13);
the cover plate (4) is respectively connected with the front vertical plate and the side vertical plate of the L bracket (1) through a third screw (10) and a fourth screw (11).
2. The device for improving structural modes according to claim 1, characterized in that said first T-nut (5) and second T-nut (6) are long nuts.
3. The device for improving structural modes according to claim 1, wherein the first T-shaped nut (5) and the second T-shaped nut (6) are made of quenched steel.
4. Device for improving the structural mode according to claim 1, characterized in that a plurality of threaded holes are arranged in the bottom of the L-bracket (1).
5. The device for improving the structural mode according to claim 1, wherein the thickness of a bottom plate of the L bracket (1) is 50mm, the thickness of a front vertical plate is 60mm, the thickness of a connecting part of two side vertical plates and the front vertical plate is 70mm, and the thickness of a mounting position of the side vertical plates and the upper mounting plate (2) is 40mm; two long holes are formed in the middle of the bottom plate and are not connected with other parts, the length of each long hole is 215mm, and the width of each long hole is 80mm.
6. The device for improving structural modes according to claim 1, wherein the material of the L bracket (1) is Q235-A.
7. The device for improving structural modes according to claim 1, wherein the front vertical plate, the side vertical plates and the bottom plate support of the L support (1) are all welded, the welding seams are continuous, the thickness of all welding legs is not less than 8mm, the post-welding aging treatment is carried out, and the finish machining is carried out after the welding stress is eliminated.
8. Device for improving the structural modes according to claim 1, characterized in that the distance between the vertical plates at the two sides of the L bracket (1) is 260mm, the height of the vertical plates is 350mm, and the maximum height of the front panel is 420mm.
9. A device for improving structural modes according to claim 1, wherein the L-bracket (1) is provided with a middle vertical plate, and the two side vertical plates are partially cut away and are used as the mounting surface of the upper mounting plate together with the middle vertical plate.
10. The device for improving structural mode according to claim 1, wherein the middle part of the vertical plates at two sides of the L bracket (1) is close to the front vertical plate of the L bracket (1), and long holes are formed to remove materials, and the long holes are 100mm in size and 40mm in width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322132672.5U CN220490384U (en) | 2023-08-08 | 2023-08-08 | Device for improving structural mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322132672.5U CN220490384U (en) | 2023-08-08 | 2023-08-08 | Device for improving structural mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220490384U true CN220490384U (en) | 2024-02-13 |
Family
ID=89831680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322132672.5U Active CN220490384U (en) | 2023-08-08 | 2023-08-08 | Device for improving structural mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220490384U (en) |
-
2023
- 2023-08-08 CN CN202322132672.5U patent/CN220490384U/en active Active
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