CN210919564U - Turbine shock attenuation shell - Google Patents
Turbine shock attenuation shell Download PDFInfo
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- CN210919564U CN210919564U CN201922106544.7U CN201922106544U CN210919564U CN 210919564 U CN210919564 U CN 210919564U CN 201922106544 U CN201922106544 U CN 201922106544U CN 210919564 U CN210919564 U CN 210919564U
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Abstract
A turbine shock absorption shell relates to the technical field of turbine shock absorption. The problem of current turbine adopt the sponge to carry out the shock attenuation, the shock attenuation effect is poor and unsuitable high temperature environment uses is solved. The utility model has the same structure of the upper damping part and the lower damping part, the upper damping part and the lower damping part are arranged oppositely and connected through the intermediate body to form a damping shell, the intermediate body is a cylindrical structure with an opening on the side wall, and the opening on the side wall of the intermediate body is used for the water outlet of the turbine to pass through; the damping component and the lower damping component are fixedly connected with the second cylinder through the first cylinder, an inclined gap is formed between the side wall of the first cylinder and the opposite side wall of the second cylinder, and a first filling layer is filled in the gap; the second cylinder is fixedly connected with the intermediate body, an inclined gap is formed between the side wall of the second cylinder and the opposite side wall of the intermediate body, and a second filling layer is filled in the gap. The utility model is suitable for an use as shock attenuation casing.
Description
Technical Field
The utility model relates to a turbine shock attenuation technical field.
Background
Because the field that turbocharging was used is very extensive, the turbine is also all applied to a lot of accurate instruments, but the turbine is when using because the blade rotates, it is great to produce vibrations, cause certain influence to service environment, current to turbine shock attenuation adoption usually add in turbine housing's the outside and establish materials such as sponge and shake the buffering, not only the shock attenuation effect is poor, and because the material restriction, the sponge is not fit for the higher environment of temperature to use as the buffer medium, consequently, just need a turbine shock-absorbing structure who is fit for using among the high temperature environment.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve current turbine and adopt the sponge to carry out the shock attenuation, the poor and unsuitable problem that high temperature environment used of shock attenuation effect, provided a turbine shock attenuation shell.
The utility model discloses a turbine damping shell, which comprises an upper damping part, a lower damping part and a middle body 5;
the structure of the upper damping part is the same as that of the lower damping part, the upper damping part and the lower damping part are oppositely arranged and are connected through an intermediate body 5 to form a damping shell, the intermediate body 5 is a cylindrical structure with an opening on the side wall, and the opening on the side wall of the intermediate body 5 is used for an outlet of a turbine to penetrate through;
the upper damping part and the lower damping part respectively comprise a first cylinder body 1, a first filling layer 2 and a second cylinder body 3;
the first cylinder 1 is fixedly connected with the second cylinder 3, an inclined gap is formed between the side wall of the first cylinder 1 and the opposite side wall of the second cylinder 3, and a first filling layer 2 is filled in the gap;
a circular through hole is formed in the center of the top surface of the first cylinder 1 of the upper damping component, and a circular through hole is formed in the center of the bottom surface of the first cylinder 1 of the lower damping component;
the inner wall of the intermediate body 5 is in an inward concave arc shape, and the top end and the bottom end of the outer wall are both in a slope shape;
the second cylinder 3 of the upper shock absorption component and the lower shock absorption component is fixedly connected with the intermediate body 5, an inclined gap is formed between the side wall of the second cylinder 3 and the opposite side wall of the intermediate body 5, and the second filling layer 4 is filled in the gap;
the first and second filler layers 2 and 4 are each a shock-absorbing layer made of a viscoelastic blend type damping material.
Further, the lateral wall of the second barrel 3 comprises three sections from top to bottom, the outer lateral wall of the first section is inclined and is an inclined plane parallel to the inner lateral wall of the first barrel 1, the inner lateral wall of the third section is inclined and is an inclined plane parallel to the outer lateral wall of the intermediate body 5, and the second section is used for connecting the bottom of the first section and the top of the third section.
Furthermore, a rectangular groove is formed in the bottom end of the middle body 5 along the annular surface, the top end of the rectangular groove extends upwards to the upper portion of the middle body 5, a plurality of springs are fixed between two walls of the rectangular groove at equal intervals, and two ends of each spring are fixed to two side walls of the wedge-shaped opening respectively.
Further, first barrel 1 and second barrel 3 are fixed through a plurality of first mountings 6, and a plurality of first mountings 6 distribute and set up, pass the top of first barrel 1 screw in first section of second barrel 3, realize the fixed to first barrel 1 and second barrel 3.
Further, the second cylinder 3 and the intermediate body 5 are fixed by a plurality of second fixing pieces 7, and the plurality of second fixing pieces 7 are distributed at equal intervals along the circumference of the second cylinder 3; each second fixing member 7 passes through the second section of the second cylinder 3 and is screwed into the top or the bottom of the middle body 5, so that the second cylinder 3 and the middle body 5 are fixed.
The utility model discloses a set up the space between last shock attenuation part and lower shock attenuation part and the midbody 5, and set up the filling layer in the space, set up the wedge in midbody 5, set up the spring in the wedge, when the turbine operation produced vibrations, the filling layer of blending type damping material is in inclined position and buffer spring's cushioning effect, can provide the damping force for the vibrations of level and two vertical directions: the vibration of the turbine motion is effectively prevented from being transmitted to the outside of the housing. When the turbine is installed, the intermediate body 5 and the upper and lower buffering parts are only required to be sleeved on the turbine respectively and fixed through the second fixing piece, the intermediate body 5 is provided with a wedge-shaped opening, when the turbine is installed, the inner wall of the intermediate body 5 can be deformed under the action of external force, and therefore the turbine is convenient to install.
Drawings
FIG. 1 is a schematic structural view of a turbomachine;
FIG. 2 is a cross-sectional view of the turbine damper housing of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
The first embodiment is as follows: the present embodiment is described below with reference to fig. 1, and the turbine damper housing according to the present embodiment includes an upper damper member, a lower damper member, and an intermediate body 5;
the structure of the upper damping part is the same as that of the lower damping part, the upper damping part and the lower damping part are oppositely arranged and are connected through an intermediate body 5 to form a damping shell, the intermediate body 5 is a cylindrical structure with an opening on the side wall, and the opening on the side wall of the intermediate body 5 is used for an outlet of a turbine to penetrate through;
the upper damping part and the lower damping part respectively comprise a first cylinder body 1, a second cylinder body 3 and a first filling layer 2;
the first cylinder 1 is fixedly connected with the second cylinder 3, an inclined gap is formed between the side wall of the first cylinder 1 and the opposite side wall of the second cylinder 3, and a first filling layer 2 is filled in the gap;
a circular through hole is formed in the center of the top surface of the first cylinder 1 of the upper damping component, and a circular through hole is formed in the center of the bottom surface of the first cylinder 1 of the lower damping component;
the inner wall of the intermediate body 5 is in an inward concave arc shape, and the top end and the bottom end of the outer wall are both in a slope shape;
the second cylinder 3 of the upper shock absorption component and the lower shock absorption component is fixedly connected with the intermediate body 5, an inclined gap is formed between the side wall of the second cylinder 3 and the opposite side wall of the intermediate body 5, and the second filling layer 4 is filled in the gap;
the first and second filler layers 2 and 4 are each a shock-absorbing layer made of a viscoelastic blend type damping material.
The housing according to the present embodiment is suitable for use in damping the vibration of the turbine shown in fig. 1, and may be used in a turbine having another housing shape after being deformed. The first cylinders 1 of the upper damping component and the lower damping component are both of a cylindrical structure with an opening on one side, and when the two damping components are arranged oppositely, the bottom surfaces of the two cylinders are provided with circular through holes oppositely, and the circular through holes correspond to the upper opening and the lower opening of the turbine.
The viscoelastic blending damping material of the embodiment can adopt a pressure-sensitive adhesive damping material, and the pressure-sensitive adhesive damping material not only has higher damping performance, but also has white viscosity, can be adhered to the surface to be treated without an adhesive, and does not debond during working. The viscoelastic blend-type damping material of the present embodiment can be stuck between the first sleeve and the second sleeve and between the second sleeve and the intermediate body 5. The viscoelastic blending type damping material can also be realized by adopting a rubber material, the rubber elastomer can convert mechanical energy into heat energy under the action of alternating stress and dissipate the heat energy due to the special viscoelasticity of the rubber elastomer, the rubber material adopted in the implementation is an NR/ENR-25/ENR-40/ENR-50 quaternary blending damping material prepared by adopting epoxidized natural rubber (ENR-25, ENR-40 and ENR-50) as a base material and adopting a conventional blending method and a gradient laminating method, the effective damping temperature range can be from minus 28.4 ℃ to 39.4 ℃, the tensile strength can reach 5.5MPa, and the elongation at break is 642%. The filling thickness of the first filling layer 2 and the second filling layer 4 can be set by those skilled in the art according to actual needs.
Further, the lateral wall of the second barrel 3 comprises three sections from top to bottom, the outer lateral wall of the first section is inclined and is an inclined plane parallel to the inner lateral wall of the first barrel 1, the inner lateral wall of the third section is inclined and is an inclined plane parallel to the outer lateral wall of the intermediate body 5, and the second section is used for connecting the bottom of the first section and the top of the third section.
Furthermore, the inner wall of the intermediate body 5 and the inner wall of the first section of the second cylinder 3 are both provided with a high temperature resistant silica gel layer.
The high temperature resistant silica gel layer of this embodiment is resistant to high temperature and is between 200 ~ 300 ℃. The maximum temperature can reach about 350 ℃ in a short time, for example, two hours. For the prior art, when in use, a person skilled in the art can attach the intermediate body 5, the second cylinder and the inner wall of the first cylinder according to actual needs, and the shell of the turbine and the damping shell in the embodiment are tightly attached without relative displacement or collide with each other.
Furthermore, a rectangular groove is formed in the bottom end of the middle body 5 along the annular surface, the top end of the rectangular groove extends upwards to the upper portion of the middle body 5, a plurality of springs are fixed between two walls of the rectangular groove at equal intervals, and two ends of each spring are fixed to two side walls of the wedge-shaped opening respectively.
In the embodiment, two walls of the rectangular groove with the downward opening formed in the side wall of the intermediate body are both arc-shaped and concave inwards, and a spring is fixed between the two walls of the rectangular groove and used for buffering transverse force and vibration.
The wedge-shaped opening in the embodiment is an opening with a downward transverse width and a wide upper part and a narrow lower part, which is formed in the side wall of the intermediate body 5, and the two opposite walls of the opening are fixed with springs to realize the damping effect. Meanwhile, the shape of the turbine shell is fitted with that of the inner wall of the intermediate body 5, and the generation of large noise in the vibration process is reduced.
Further, first barrel 1 and second barrel 3 are fixed through a plurality of first mountings 6, and a plurality of first mountings 6 distribute and set up, pass the top of first barrel 1 screw in first section of second barrel 3, realize the fixed to first barrel 1 and second barrel 3.
Further, the second cylinder 3 and the intermediate body 5 are fixed by a plurality of second fixing pieces 7, and the plurality of second fixing pieces 7 are distributed at equal intervals along the circumference of the second cylinder 3; each second fixing member 7 passes through the second section of the second cylinder 3 and is screwed into the top or the bottom of the middle body 5, so that the second cylinder 3 and the middle body 5 are fixed.
The turbine damper shell of the embodiment is practical and practical for a single-pipeline turbine, and an opening can be formed in the side wall of the intermediate body 5 according to actual use conditions, so that the turbine damper shell is practical for turbines with two pipelines.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (6)
1. A turbomachine damping housing, comprising an upper damping member, a lower damping member and an intermediate body (5);
the structure of the upper damping part is the same as that of the lower damping part, the upper damping part and the lower damping part are oppositely arranged and are connected through an intermediate body (5) to form a damping shell, the intermediate body (5) is of a cylindrical structure with an opening in the side wall, and the opening in the side wall of the intermediate body is used for an outlet of a turbine to penetrate through;
the upper damping part and the lower damping part respectively comprise a first cylinder (1), a first filling layer (2) and a second cylinder (3);
the first cylinder (1) is fixedly connected with the second cylinder (3), an inclined gap is formed between the side wall of the first cylinder (1) and the opposite side wall of the second cylinder (3), and a first filling layer (2) is filled in the gap;
a circular through hole is formed in the center of the top surface of the first cylinder (1) of the upper damping component, and a circular through hole is formed in the center of the bottom surface of the first cylinder (1) of the lower damping component;
the inner wall of the intermediate body is in an inward concave arc shape, and the top end and the bottom end of the outer wall are both in a slope shape;
the second cylinder (3) of the upper damping component and the lower damping component is fixedly connected with the intermediate body, an inclined gap is formed between the side wall of the second cylinder (3) and the opposite side wall of the intermediate body, and a second filling layer (4) is filled in the gap;
the first filling layer (2) and the second filling layer (4) are shock absorption layers made of viscoelastic blended damping materials.
2. The turbine damper housing according to claim 1, wherein the side wall of the second cylinder (3) comprises three sections from top to bottom, the outer side wall of the first section is inclined and inclined parallel to the inner side wall of the first cylinder (1), the inner side wall of the third section is inclined and inclined parallel to the outer side wall of the intermediate body, and the second section is used for connecting the bottom of the first section and the top of the third section.
3. The turbine damper housing according to claim 1 or 2, wherein the bottom end of the intermediate body (5) is opened with a rectangular opening along the annular surface, the top end of the rectangular opening extends upwards to the upper part of the intermediate body (5), a plurality of springs are fixed between two side walls of the rectangular opening at equal intervals, and two ends of the plurality of springs are respectively fixed on two side walls of the wedge-shaped opening.
4. The turbine damper housing according to claim 1 or 2, characterized in that the first cylinder (1) and the second cylinder (3) are fixed by a plurality of first fixing members (6), the plurality of first fixing members (6) are distributed and arranged to penetrate through the first cylinder (1) and screw into the top of the first section of the second cylinder (3) to fix the first cylinder (1) and the second cylinder (3).
5. The turbomachine damper housing according to claim 1 or 2, characterized in that the second cylinder (3) and the intermediate body (5) are fixed by a plurality of second fixing members (7), the plurality of second fixing members (7) being equally spaced along the circumference of the second cylinder (3); each second fixing piece (7) penetrates through the second section of the second cylinder (3) and is screwed into the top or the bottom of the middle body (5), so that the second cylinder (3) and the middle body (5) are fixed.
6. The turbine damping shell according to claim 2, characterized in that the inner wall of the intermediate body (5) and the inner wall of the first section of the second cylinder (3) are both provided with a high temperature resistant silica gel layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922106544.7U CN210919564U (en) | 2019-11-29 | 2019-11-29 | Turbine shock attenuation shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922106544.7U CN210919564U (en) | 2019-11-29 | 2019-11-29 | Turbine shock attenuation shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210919564U true CN210919564U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922106544.7U Active CN210919564U (en) | 2019-11-29 | 2019-11-29 | Turbine shock attenuation shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210919564U (en) |
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2019
- 2019-11-29 CN CN201922106544.7U patent/CN210919564U/en active Active
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