CN105041960B - Shock absorber comprising an adjustment platform - Google Patents
Shock absorber comprising an adjustment platform Download PDFInfo
- Publication number
- CN105041960B CN105041960B CN201510329693.3A CN201510329693A CN105041960B CN 105041960 B CN105041960 B CN 105041960B CN 201510329693 A CN201510329693 A CN 201510329693A CN 105041960 B CN105041960 B CN 105041960B
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- platform
- core
- adjusting
- vibration
- adjusting platform
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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
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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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
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a vibration damper containing an adjusting platform, which is used for damping the vibration transmitted from a vibration source to a frame, and comprises: a base connected with the frame; the adjusting platform is detachably connected with the vibration source; the upper end of the mold core is connected with the adjusting platform, the middle part of the mold core is connected with a connecting piece, and a cavity is formed between the mold core and the base; and a damping elastic body disposed in the cavity and deformed by the core and the base to damp vibration transmitted through the movable core. The vibration damper comprising the adjusting platform is more convenient to connect with a vibration source.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a vibration absorber containing an adjusting platform and used between a vibration source and a frame.
Background
With the rapid development of the installed capacity of wind power generation and the maturity and continuous perfection of wind power generator technology all over the world, wind power generation is becoming one of the more important and more important energy sources for all countries in the world. The wind power generation energy is utilized to provide clean energy for people, but the problems of vibration generated by the generator set during working and noise caused by the vibration are not ignored. Noise is generated partly by mechanical movement and partly by aerodynamic forces. The mechanical noise is mainly generated by the rotating machines (especially, the gear box and the generator) in the nacelle. In order to reduce the noise transmitted to the frame and the tower by the gearbox and the generator when the fan runs, a vibration damping device or a vibration damper is arranged between the gearbox, the generator and the frame, for example, the vibration damper is arranged between the motor and the gearbox and the frame to reduce the transmission of the vibration generated by the motor and the gearbox to the frame. A vibration damper is adopted in the wind generating set to connect the wind driven generator to the frame. After passing through the vibration damper, the force transmitted by the wind turbine to the frame is represented by fatigue vibration load which is several orders of magnitude lower. In the prior art, a rubber spring damper is usually adopted to reduce the vibration generated by a motor, so that the noise is reduced.
When the vibration absorber in the prior art is connected with a vibration source, in order to make the connection part not easy to loosen, a welding mode is generally adopted, and if the vibration absorber needs to be replaced when the service life expires, the connection part of the vibration source can be greatly abraded, and even the connection with a new vibration absorber is influenced.
Disclosure of Invention
The invention aims to provide a damper comprising an adjusting platform, which is more convenient to connect with a vibration source.
In view of the technical problem, the technical solution of the present invention is to provide a damper including an adjustment platform for damping vibration transmitted from a vibration source to a base, including:
a base connected with the frame;
the adjusting platform is connected with the vibration source;
the upper end of the mold core is detachably connected with the adjusting platform, the middle part of the mold core is connected with a connecting piece, and a mold cavity is formed between the mold core and the base; and
and a vibration damping elastic body which is arranged in the cavity and is deformed under the action of the core and the base so as to weaken the vibration transmitted by the movable core.
The shock absorber incorporating the adjustment platform of the present invention has the following advantages over the prior art. The shock absorber comprising the adjusting platform is provided with the special adjusting platform, the adjusting platform is arranged between the vibration source and the shock absorber, the adjusting platform is detachably connected with the vibration source and is more convenient to connect with the vibration source, and the damage to the vibration source can be reduced as much as possible when the shock absorber is replaced.
In one embodiment, a height adjustment assembly is provided between the adjustment platform and the mandrel, the height adjustment assembly being adjustable in longitudinal height. The relative height between the adjusting platform and the mold core can be adjusted, so that the requirements of different installation heights can be met. Especially, the installation position of the vibration source is fixed, and when a new vibration damper is replaced, the height-adjustable adjusting platform is beneficial to installation.
In one embodiment, the height adjustment assembly includes a first support disposed between the core and the adjustment platform for supporting the adjustment platform. The first supporting piece in the height adjusting assembly can play a role in supporting and adjusting the platform, so that the strength of the adjusting platform is improved.
In one embodiment, the first support is disposed around a central boss of the adjustment platform. The first supporting piece is annular and surrounds the boss at the middle part, so that the effects of uniform supporting and uniform vibration reduction are achieved.
In a preferred embodiment, the adjusting platform is a T-shaped circular table consisting of a large-diameter cylinder and a small-diameter cylinder, and a snap ring for fixing the first support is arranged on the bottom surface of the large cylinder of the T-shaped circular table. The snap ring plays a role in fixing the first support member. Especially during large vibrations, the first support is prevented from deviating.
In a preferred embodiment, the height adjusting assembly further comprises a second support member disposed below the middle boss of the adjusting platform, and the middle of the mold core is provided with a groove for receiving the middle boss of the T-shaped adjusting platform. The setting position is a first setting position of the second support member. The second support member has a similar function to the first support member and also has a supporting function. Especially when large vibration force acts, the second supporting piece plays a better role of auxiliary support.
In a preferred embodiment, the height adjustment assembly further comprises a second support member disposed within a recess in the central portion of the core. This embodiment pertains to the second setting of the second support member and functions similarly to the second support member in the first setting.
In one embodiment, the adjusting platform is a T-shaped circular truncated cone, an external thread is arranged on a middle protrusion of the T-shaped circular truncated cone, a groove is formed in the middle of the mold core, an internal thread is arranged on the inner wall of the groove, and the middle protrusion of the T-shaped circular truncated cone is matched with the middle groove of the mold core. The height of the adjusting platform relative to the core is adjusted by adjusting the height of the threaded connection, so that different shock absorbers are installed in a matching mode.
In one embodiment, the adjusting platform is fixedly connected with the connecting piece so as to facilitate installation of the adjusting platform.
In one embodiment, the first support comprises a compression spring which deforms in the direction from the core to the adjustment platform, so as to reduce cost and simplify structure.
Drawings
FIG. 1 illustrates a cross-sectional view of one embodiment of a shock absorber incorporating an adjustment platform according to the present invention.
FIG. 2 illustrates a cross-sectional view of another embodiment of a shock absorber incorporating an adjustment platform according to the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
One particular embodiment of a shock absorber incorporating an adjustment platform of the present invention is shown in FIG. 1. In this embodiment, the damper including the adjustment platform mainly includes a base 1, an adjustment platform 7, a core 3, and a damping elastic body 2. Wherein the base 1 is connected with the frame. The adjusting platform 7 is detachably connected with the vibration source. The vibration source is primarily a generator or a gearbox. The upper end of the mold core 3 is provided with an adjusting platform 7 and the middle part is connected with a connecting piece 4. The adjusting platform 7 is sleeved on the connecting piece 4 and is in threaded connection with the connecting piece 4 or the mold core 3. A cavity is formed between the core 3 and the base 1, and the damping elastomer 2 is arranged in the cavity. During the vibration, the core 3 presses the damping elastomer 2 to deform it and thus damp the transmitted vibration.
In one embodiment, a longitudinal (axial to the connecting piece 4) height-adjustable height adjustment assembly is provided between the adjustment platform 7 and the core 3. In fig. 1, the height adjustment assembly is mainly composed of a first support 6 and a second support 5. The first support 6 and the second support 5 are both compression springs that are deformed in the direction of the core 3 to the adjustment platform 7. The first support 6 and the second support 5 each function to support the adjustment platform 7. The first support 6 is arranged between the core 3 and the adjustment platform 7 for supporting the adjustment platform 7. In a preferred embodiment, the adjusting platform 7 is a T-shaped circular table composed of a large diameter cylinder and a small diameter cylinder, and the first supporting member 6 is disposed around a middle boss, i.e., the small diameter cylinder, of the adjusting platform 2. One end of the first support member 6 abuts against the bottom surface of the large-diameter cylinder, and the other end is connected to the upper end surface of the core 3.
In a preferred embodiment, in order to prevent the first support 6 from tilting and deviating under the action of large vibration, a snap ring 8 for limiting and fixing the first support 6 is arranged on the bottom surface of the large-diameter cylinder of the adjusting platform 7.
In the embodiment shown in fig. 1, the second support 5 is provided at the bottom of a small diameter cylinder. A recess 3.1 is provided in the middle of the upper end of the core 3, corresponding to the position of the second support 5. This recess 3.1 can accommodate the middle boss (i.e. the small diameter cylinder) of the T-shaped adjustment platform 7. The structure allows at least a part of the middle boss of the T-shaped adjusting platform 7 to enter the groove 3.1 to play a role of auxiliary limit under the large vibration acting force within the supporting limit range of the first supporting piece 6 and the second supporting piece 5.
In one embodiment, as shown in FIG. 2, the second support is a rubber block. The second support 5 is arranged in a recess 3.1 in the middle of the core 3. During the adjustment of the adjustment platform 7, the middle small cylindrical boss of the adjustment platform 7 can be pressed onto the second support 5. It is noted that the embodiment shown in fig. 2 is the same as the embodiment shown in fig. 1 except that the second support 5 is disposed at a different position.
In an embodiment not shown, the adjustment platform 7 and the core 3 may be of a screw-threaded configuration. The length of the matching thread between the adjustment platform 7 and the core 3 can be adjusted to adjust the relative height of the adjustment platform 7 with respect to the vibration source and the core 3. For example, in one embodiment, the adjusting platform 7 is a T-shaped circular truncated cone, an external thread is arranged on a middle protrusion (i.e. a small diameter cylinder) of the T-shaped circular truncated cone, a groove 3.1 is arranged in the middle of the mold core 3, an internal thread is arranged on the inner wall of the groove 3.1, and the middle protrusion of the T-shaped circular truncated cone is in threaded fit with the middle groove 3.1 of the mold core 3. The height of the adjusting platform 7 relative to the upper end surface of the mold core 3 can be adjusted by adjusting the length of the matching thread of the middle protrusion of the T-shaped circular truncated cone and the middle groove 3.1 of the mold core 3. Since the adjustment platform 7 is located between the core 3 and the vibration source, the relative height or relative distance of the top surface of the adjustment platform 7 with respect to the vibration source can be adjusted.
While the invention has been described in conjunction with specific embodiments, it will be understood that various modifications and substitutions may be made thereto without departing from the scope of the invention. In particular, the features of the various embodiments may be combined with each other as long as there is no structural conflict, and the resulting combined features are still within the scope of the present invention. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (2)
1. A vibration damper including an adjustment platform for damping vibrations transmitted from a vibration source to a frame, comprising:
a base connected with the frame;
the adjusting platform is detachably connected with the vibration source;
the upper end of the core is connected with the adjusting platform, the middle part of the core is connected with a connecting piece, a cavity is formed between the core and the base, the core comprises a first core part and a connecting part, and the diameter of the first core part is gradually increased along the direction far away from the connecting part; and
the vibration reduction elastic body is arranged in the cavity, deforms under the action of the core and the base so as to weaken the vibration transmitted by the movable core, and a margin space is arranged between the vibration reduction elastic body and the frame;
a height adjusting component with adjustable longitudinal height is arranged between the adjusting platform and the mold core,
the height adjusting assembly comprises a first supporting piece, the first supporting piece is arranged between the mold core and the adjusting platform and used for supporting the adjusting platform, the first supporting piece is arranged around a middle boss of the adjusting platform,
the height adjusting component also comprises a second supporting piece, the second supporting piece is arranged below the middle boss of the adjusting platform, the middle part of the mold core is provided with a groove for accommodating the middle boss of the T-shaped adjusting platform,
the first supporting piece and the second supporting piece are compression springs which deform along the direction from the mold core to the adjusting platform;
the adjusting platform is a T-shaped circular table consisting of a large-diameter cylinder and a small-diameter cylinder, and a clamping ring for fixing the first supporting piece is arranged on the bottom surface of the large cylinder of the T-shaped circular table;
the adjustable platform is a T-shaped round platform, external threads are arranged on the middle protrusion of the T-shaped round platform, a groove is formed in the middle of the mold core, internal threads are arranged on the inner wall of the groove, and the middle protrusion of the T-shaped round platform is matched with the middle groove of the mold core.
2. The damper of claim 1, wherein said adjustment platform is fixedly connected to said connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510329693.3A CN105041960B (en) | 2015-06-15 | 2015-06-15 | Shock absorber comprising an adjustment platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510329693.3A CN105041960B (en) | 2015-06-15 | 2015-06-15 | Shock absorber comprising an adjustment platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105041960A CN105041960A (en) | 2015-11-11 |
| CN105041960B true CN105041960B (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510329693.3A Active CN105041960B (en) | 2015-06-15 | 2015-06-15 | Shock absorber comprising an adjustment platform |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631011B (en) * | 2017-09-20 | 2024-06-11 | 株洲时代新材料科技股份有限公司 | Vibration damping supporting device |
| CN107702792A (en) * | 2017-11-24 | 2018-02-16 | 苏州岸肯电子科技有限公司 | A kind of miniature shock absorber |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1371312A (en) * | 1999-08-28 | 2002-09-25 | Sms迪马格股份公司 | Device for continuous casting of metal |
| JP2004133244A (en) * | 2002-10-11 | 2004-04-30 | Murata Mach Ltd | Image forming apparatus |
| CN102198835A (en) * | 2011-04-14 | 2011-09-28 | 株洲时代新材料科技股份有限公司 | Metal rubber combined elastic vibration reducing primary spring for axle box |
| CN103075461A (en) * | 2011-10-25 | 2013-05-01 | 株洲时代新材料科技股份有限公司 | Damping support device |
| CN103363005A (en) * | 2013-07-26 | 2013-10-23 | 株洲时代新材料科技股份有限公司 | Cone shock absorber with adjustable stiffness and installation regulating method thereof |
| CN104633456A (en) * | 2015-02-03 | 2015-05-20 | 成都大漠石油机械有限公司 | Oil pipeline capable of listening for oil flowing state |
-
2015
- 2015-06-15 CN CN201510329693.3A patent/CN105041960B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1371312A (en) * | 1999-08-28 | 2002-09-25 | Sms迪马格股份公司 | Device for continuous casting of metal |
| JP2004133244A (en) * | 2002-10-11 | 2004-04-30 | Murata Mach Ltd | Image forming apparatus |
| CN102198835A (en) * | 2011-04-14 | 2011-09-28 | 株洲时代新材料科技股份有限公司 | Metal rubber combined elastic vibration reducing primary spring for axle box |
| CN103075461A (en) * | 2011-10-25 | 2013-05-01 | 株洲时代新材料科技股份有限公司 | Damping support device |
| CN103363005A (en) * | 2013-07-26 | 2013-10-23 | 株洲时代新材料科技股份有限公司 | Cone shock absorber with adjustable stiffness and installation regulating method thereof |
| CN104633456A (en) * | 2015-02-03 | 2015-05-20 | 成都大漠石油机械有限公司 | Oil pipeline capable of listening for oil flowing state |
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| CN105041960A (en) | 2015-11-11 |
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