CN109139792B - Damper and overspeed testing machine with same - Google Patents
Damper and overspeed testing machine with same Download PDFInfo
- Publication number
- CN109139792B CN109139792B CN201811240076.6A CN201811240076A CN109139792B CN 109139792 B CN109139792 B CN 109139792B CN 201811240076 A CN201811240076 A CN 201811240076A CN 109139792 B CN109139792 B CN 109139792B
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- vibration
- core rod
- damper
- locking
- locking plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention provides a damper and an overspeed testing machine with the same, wherein the damper comprises: a housing; a damping assembly disposed within the housing for reducing vibration of the core rod; the detection device is connected with the shell to detect the vibration of the core rod; the core rod penetrates through the shell, the damping assembly is connected with the core rod to reduce vibration of the core rod, and the detection device monitors vibration of the core rod by detecting vibration of the damping assembly. The damper solves the problem that an overspeed testing machine in the prior art is unsafe.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a damper and an overspeed testing machine with the same.
Background
In the test for measuring the rotating speed of the rotor, the rotating speed of the test piece is high, and the vibration of the test piece is easily caused by the test instrument or the test piece processing and the like, so that the strong vibration of the whole system is caused, and the strong vibration can cause the equipment to be incapable of testing and even damage the equipment.
At present, most of the traditional impeller overspeed testing machines are directly driven by motors or driven by belts, the rotating speed can only be 10000r/min to 25000r/min generally, the vibration of the whole machine of the equipment is not obvious at the moment, and when the operating rotating speed of the equipment exceeds 40000r/min, the test has strict requirements on the operating vibration of the equipment, forced shutdown is needed when the vibration is too high, otherwise, the equipment is easily damaged, even safety accidents are caused, and the existing equipment cannot monitor the vibration condition in real time and is very unsafe.
Disclosure of Invention
The invention mainly aims to provide a damper and an overspeed testing machine with the same, and aims to solve the problem that the overspeed testing machine in the prior art is unsafe.
In order to achieve the above object, according to one aspect of the present invention, there is provided a damper including: a housing; a damping assembly disposed within the housing for reducing vibration of the core rod; the detection device is connected with the shell to detect the vibration of the core rod; the core rod penetrates through the shell, the damping assembly is connected with the core rod to reduce vibration of the core rod, and the detection device monitors vibration of the core rod by detecting vibration of the damping assembly.
Further, the damping subassembly includes the damping seat, and detection device includes vibration sensor, and vibration sensor is connected with the damping seat in order to detect the vibration of damping seat.
Further, the housing includes a chassis, and the damper further includes: and the fixing component is arranged on the chassis to fix the vibration sensor.
Further, fixed subassembly includes first locating piece, and first locating piece is fixed on the chassis, is equipped with the locating hole on the first locating piece, and vibration sensor wears to establish in the locating hole and fixes a position.
Further, the fixing assembly further comprises: and the locking piece is arranged on the chassis and used for locking the vibration sensor on the chassis.
Further, the locking member includes: the locking mechanism comprises a first locking plate and a second locking plate, wherein the first locking plate is rotatably connected with the second locking plate and is provided with a locking position and an opening position; when the first locking plate rotates to the locking position, the vibration sensor is locked, and when the first locking plate rotates to the opening position, the vibration sensor is taken out.
Furthermore, the locking piece further comprises a locking screw, and when the first locking plate rotates to the locking position, the locking screw fixes the first locking plate on the second locking plate so as to position the vibration sensor.
Further, the fixing assembly further comprises a second positioning part which is fixed on the chassis for fixing the locking part.
Further, the damper further includes: the bearing assembly is sleeved on the core rod, and the fixing assembly is connected with the core rod through the bearing assembly.
According to another aspect of the invention, an overspeed testing machine is provided, which comprises a damper and a core rod, wherein the damper is the damper.
The damper applying the technical scheme of the invention can be used on an overspeed testing machine to reduce the vibration of the core rod, and comprises a shell, a damping assembly for reducing the vibration and a detection device for detecting the vibration of the shell, wherein the shell is arranged on the core rod, the damping assembly is arranged in the shell and wraps around the core rod to reduce the vibration of the core rod when the core rod rotates, the detection device is arranged on the shell to judge the vibration state of the core rod or the whole system by detecting the vibration of the shell, and when the vibration of the shell is detected to exceed a certain range, the damper can give an alarm or cut off the power supply in time to ensure the safety of equipment of the overspeed testing machine.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
figure 1 shows an overall schematic view of an embodiment of a damper according to the invention;
FIG. 2 shows a schematic view of an embodiment of a damping mount in the damping assembly of the present invention;
FIG. 3 shows a schematic view of a securing assembly embodiment of the present invention;
figure 4 shows a schematic view of a first retainer embodiment of the present invention.
Wherein the figures include the following reference numerals:
24. a housing; 243. a chassis; 25. a damping seat; 41. a vibration sensor; 42. a first positioning member; 421. positioning holes; 43. a locking member; 431. a first locking plate; 432. a second locking plate; 44. a second positioning member; 45. a bearing assembly; 100. a core rod.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The present invention provides a damper, please refer to fig. 1 to 4, including: a housing 24; a damping assembly disposed within the shell 24 for reducing vibration of the core rod 100; a detection device connected to the housing 24 to detect vibration of the stem 100; wherein the stem 100 passes through the shell 24, the damping assembly is coupled to the stem 100 to reduce vibration of the stem 100, and the sensing device monitors vibration of the stem 100 or the entire tester system by sensing vibration of the damping assembly.
The damper can be used on an overspeed testing machine to reduce the vibration of the core rod 100, and comprises a shell 24, a damping component for reducing the vibration and a detection device for detecting the shell vibration, wherein the shell 24 is arranged on the core rod 100, the damping component is arranged in the shell 24 and wrapped around the core rod 100 to reduce the vibration of the core rod 100 when the core rod 100 rotates, the detection device is arranged on the shell 24 to judge the vibration state of the core rod 100 or the whole system by detecting the vibration of the shell 24, and when the vibration of the shell 24 is detected to exceed a certain range, the damper can give an alarm or cut off the power supply in time to ensure the safety of the overspeed testing machine.
The damping assembly comprises a damping mount 25 and the detection means comprises a vibration sensor 41, the vibration sensor 41 being connected to the damping mount 25 for detecting vibrations of the damping mount 25.
As shown in fig. 2, the damping assembly in this embodiment includes a damping seat 25, the damping seat 25 is disposed in the casing 24, the damping assembly further includes a damping spacer and a vibrator for vibration reduction, the damping spacer is wrapped on the core rod 100, the vibrator is wrapped outside the damping spacer, the damping seat 25 is disposed at the bottom of the damping spacer and the vibrator, the damping assembly is formed by the damping seat and the vibrator to reduce the vibration generated by the rotation of the core rod 100, and the detection head of the vibration sensor 41 is disposed toward the damping seat 25 to detect the vibration size or frequency generated by the damping seat 25.
The housing 24 includes a chassis 243, and the damper further includes: and a fixing member provided on the chassis 243 to fix the vibration sensor 41.
As shown in fig. 1, the housing 24 in this embodiment further includes a bottom plate 243, and a fixing component for fixing the vibration sensor 41 is disposed on the bottom plate 243, so as to fix the vibration sensor 41 on the bottom plate 243.
The fixing component includes a first positioning member 42, the first positioning member 42 is fixed on the chassis 243, a positioning hole 421 is formed on the first positioning member 42, and the vibration sensor 41 is inserted into the positioning hole 421 for positioning.
As shown in fig. 1 and 4, the fixing assembly includes a first positioning member 42, a plurality of positioning holes 421 may be formed in the first positioning member 42, a plurality of vibration sensors 41 may be simultaneously inserted into the positioning holes to detect the damping seat 25, and a plurality of connecting plates may be further formed on the first positioning member 42 to be fixed to the chassis 243.
The fixed subassembly still includes: a locker 43, the locker 43 being provided on the chassis 243 for locking the vibration sensor 41 to the chassis 243. The retaining member 43 includes: a first locking plate 431 and a second locking plate 432, the first locking plate 431 rotatably connected with the second locking plate 432, the first locking plate 431 having a locking position and an opening position; when the first locking plate 431 is rotated to the locking position, the vibration sensor 41 is locked, and when the first locking plate 431 is rotated to the unlocking position, the vibration sensor 41 is taken out. The locking member 43 further includes a locking screw, and when the first locking plate 431 is rotated to the locking position, the locking screw fixes the first locking plate 431 to the second locking plate 432 to position the vibration sensor 41.
As shown in fig. 1 and 3, the fixing assembly in this embodiment further includes a locking member 43, the locking member 43 is used for locking and fixing the vibration sensor 41 to prevent vibration, the locking member 43 includes a first locking plate 431 and a second locking plate 432, one end of the first locking plate 431 and one end of the second locking plate 432 are hinged, the other end of the first locking plate 431 and the other end of the second locking plate 432 are detachably connected by a locking screw, after the vibration sensor 41 is installed, the first locking plate 431 is rotated to a locking position, the first locking plate 431 is locked on the second locking plate 432 by the locking screw, and when the vibration sensor 41 needs to be detached, the locking screw is opened, the first locking plate 431 is rotated to an opening position, and the vibration sensor 41 is taken out.
The securing assembly further comprises a second securing member 44, the second securing member 44 being secured to the chassis 243 for securing the locking member 43.
As shown in fig. 3, the fixing assembly in this embodiment further includes a second positioning member 44, the second positioning member 44 is fixed on the chassis 243, and a second locking plate 432 is connected to the second positioning member 44 and fixed on the chassis 243 through the second positioning member 44.
The damper further includes: the bearing assembly 45 is sleeved on the core rod 100, and the fixing assembly is connected with the core rod 100 through the bearing assembly 45.
As shown in fig. 1, the damper in this embodiment further includes a bearing assembly 45, and the bearing assembly 45 is disposed between the inner side of the first positioning member 42 and the outer side of the core rod 100 to support the core rod 100, prevent the core rod 100 from swinging, and achieve connection between the fixing assembly and the core rod 100.
The invention also provides an overspeed testing machine which comprises a damper and the core rod 100, wherein the damper is the damper.
The damper of the overspeed testing machine is provided with a detection device to monitor the vibration condition of the core rod 100 in the rotation process in real time, and the safety of the whole overspeed testing machine is ensured by alarming or stopping the rotation of the core rod after the vibration exceeds the early warning value of the equipment.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the damper can be used on an overspeed testing machine to reduce the vibration of the core rod 100, and comprises a shell 24, a damping component for reducing the vibration and a detection device for detecting the shell vibration, wherein the shell 24 is arranged on the core rod 100, the damping component is arranged in the shell 24 and wrapped around the core rod 100 to reduce the vibration of the core rod 100 when the core rod 100 rotates, the detection device is arranged on the shell 24 to judge the vibration state of the core rod 100 or the whole system by detecting the vibration of the shell 24, and when the vibration of the shell 24 is detected to exceed a certain range, the damper can give an alarm or cut off the power supply in time to ensure the safety of the overspeed testing machine.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A damper, comprising:
a housing (24);
a damping assembly disposed within the housing (24) for reducing vibration of the core rod (100);
a detection device connected to the housing (24) for detecting vibrations of the core rod (100);
wherein the core rod (100) penetrates through the shell (24), the damping component is connected with the core rod (100) to reduce the vibration of the core rod (100), and the detection device monitors the vibration of the core rod (100) by detecting the vibration of the damping component;
the damping assembly comprises a damping seat (25), the detection device comprises a vibration sensor (41), and the vibration sensor (41) is connected with the damping seat (25) to detect the vibration of the damping seat (25);
the housing (24) includes a chassis (243), the damper further including: a fixing assembly provided on the chassis (243) to fix the vibration sensor (41);
the fixing assembly further comprises: a locking member (43), the locking member (43) being provided on the chassis (243) for locking the vibration sensor (41) on the chassis (243);
the retaining member (43) comprises: a first locking plate (431) and a second locking plate (432), the first locking plate (431) rotatably connected with the second locking plate (432), the first locking plate (431) having a locked position and an unlocked position; wherein the vibration sensor (41) is locked when the first locking plate (431) rotates to the locking position, and the vibration sensor (41) is taken out when the first locking plate (431) rotates to the opening position.
2. The damper according to claim 1, wherein the fixing component comprises a first positioning member (42), the first positioning member (42) is fixed on the chassis (243), a positioning hole (421) is formed in the first positioning member (42), and the vibration sensor (41) is arranged in the positioning hole (421) in a penetrating manner for positioning.
3. A damper as claimed in claim 1 wherein the locking member (43) further comprises a locking screw which secures the first locking plate (431) to the second locking plate (432) when the first locking plate (431) is rotated to the locking position to position the vibration sensor (41).
4. A damper as claimed in claim 1 wherein said fixing assembly further comprises a second locating member (44), said second locating member (44) being fixed to said chassis (243) for securing said locking member (43).
5. The damper of claim 1, further comprising:
the bearing assembly (45) is sleeved on the core rod (100), and the fixing assembly is connected with the core rod (100) through the bearing assembly (45).
6. An overspeed testing machine comprising a damper and a core rod (100), characterized in that the damper is according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811240076.6A CN109139792B (en) | 2018-10-23 | 2018-10-23 | Damper and overspeed testing machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811240076.6A CN109139792B (en) | 2018-10-23 | 2018-10-23 | Damper and overspeed testing machine with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109139792A CN109139792A (en) | 2019-01-04 |
| CN109139792B true CN109139792B (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811240076.6A Active CN109139792B (en) | 2018-10-23 | 2018-10-23 | Damper and overspeed testing machine with same |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103604587A (en) * | 2013-08-27 | 2014-02-26 | 杭州海罗马科技有限公司 | High-speed rotation testing machine and method for testing high-speed rotation strength performance of rotor |
| CN105067234A (en) * | 2015-07-17 | 2015-11-18 | 安阳工学院 | High speed electric main shaft comprehensive experiment platform and experiment method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3488696B2 (en) * | 2001-02-19 | 2004-01-19 | 丸和電機株式会社 | High-speed rotation test equipment |
| CN204924606U (en) * | 2015-09-19 | 2015-12-30 | 吉林大学 | Device is applyed to direction in space exciting force |
-
2018
- 2018-10-23 CN CN201811240076.6A patent/CN109139792B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604587A (en) * | 2013-08-27 | 2014-02-26 | 杭州海罗马科技有限公司 | High-speed rotation testing machine and method for testing high-speed rotation strength performance of rotor |
| CN105067234A (en) * | 2015-07-17 | 2015-11-18 | 安阳工学院 | High speed electric main shaft comprehensive experiment platform and experiment method |
Non-Patent Citations (3)
| Title |
|---|
| EORD支承转子动力学特性分析及其在超高速旋转机械中的应用研究;宣海军;《中国博士学位论文全文数据库 工程科技Ⅰ辑》;20050131;第72-76页 * |
| HR10型高速转子动力学试验台的研制;周忠彭;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20140430;第3-10页 * |
| 周忠彭.HR10型高速转子动力学试验台的研制.《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》.2014, * |
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| CN109139792A (en) | 2019-01-04 |
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