CN109827036B - Damping device capable of being switched between damping state and locking state - Google Patents
Damping device capable of being switched between damping state and locking state Download PDFInfo
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- CN109827036B CN109827036B CN201910069741.8A CN201910069741A CN109827036B CN 109827036 B CN109827036 B CN 109827036B CN 201910069741 A CN201910069741 A CN 201910069741A CN 109827036 B CN109827036 B CN 109827036B
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Abstract
The invention discloses a damping device capable of switching between a damping state and a locking state, wherein a component to be damped is arranged on a base through the damping device, and the damping device comprises: the device comprises a shock pad and a locking and unlocking mechanism; the shock pad is positioned on the upper surface of the base; the shock pad is of a block structure which is provided with shock pad grooves on at least two sides and has a set thickness; the locking and unlocking mechanism respectively penetrates through the through hole of the base and the shock pad groove on the shock pad and is fixedly connected with the part to be damped; when the locking and unlocking mechanism is in a locking state, the part to be damped is fixedly connected with the base; when the locking and unlocking mechanism is in an unlocking state, the part to be damped is flexibly connected with the base through the damping pad.
Description
Technical Field
The invention relates to the field of damping devices, in particular to a damping device capable of being switched between a damping state and a locking state.
Background
Inertial navigation systems (inertial navigation) are systems of resolving navigation parameters with gyroscopes and accelerometers as sensitive devices. The rigid fixed connection structure makes the inertial navigation system assembly inevitably affected by body vibration, and in order to reduce the impact, a shock absorption measure such as a rubber pad is usually adopted, but in the inertial navigation initial alignment process, the inertial navigation assembly and the base are usually required to have no relative movement, namely, the fixed connection (locking) must be kept. Therefore, it is necessary to switch between the damping state and the locking state in consideration of the degree of freedom constraint required by inertial navigation in different stages.
Disclosure of Invention
In view of the above, the present invention provides a damping device capable of switching between a damping state and a locking state, which can switch between the damping state and the locking state, and reduce the degree of freedom of inertial navigation in the locking state, thereby reducing the initial alignment error caused by the degree of freedom of inertial navigation.
The technical scheme of the invention is as follows: a damper device capable of switching between a damper state and a lock state, by which a member to be damped is mounted on a base, the damper device comprising: the device comprises a shock pad and a locking and unlocking mechanism;
the shock pad is positioned on the upper surface of the base;
the shock pad is of a block structure which is provided with shock pad grooves on at least two sides and has a set thickness;
the locking and unlocking mechanism respectively penetrates through the through hole of the base and the shock pad groove on the shock pad and is fixedly connected with the part to be damped; when the locking and unlocking mechanism is in a locking state, the part to be damped is fixedly connected with the base; when the locking and unlocking mechanism is in an unlocking state, the part to be damped is flexibly connected with the base through the damping pad.
As a preferred technical scheme of the invention, the locking and unlocking mechanism comprises an electromagnet and a matching end;
the matching end comprises a vertical part and a horizontal part, the horizontal part is provided with an opening, and the upper surface of the horizontal part is provided with a matching end through hole which is communicated with the opening of the horizontal part of the matching end; the number of the matching ends is consistent with that of the shock pad grooves and corresponds to that of the shock pad grooves one by one;
the vertical part of the matching end is fixedly connected with the part to be damped, and the horizontal part is positioned in two damping pad grooves on the damping pad;
each electromagnet penetrates through the through hole of the base and the horizontal opening of the horizontal part of the matching end to be in contact fit with the corresponding matching end through hole respectively, and when the electromagnet is electrified, the locking and unlocking mechanism is in a locking state; when the electromagnet is powered off, the locking and unlocking mechanism is in an unlocking state;
the electromagnet includes: the iron core, the electromagnet pull rod, the reset spring and the pull rod boss;
the electromagnet pull rod penetrates through the iron core, one end part of the electromagnet pull rod is fixedly connected with the pull rod boss, a shaft shoulder which is integrally formed with the electromagnet pull rod is arranged at the other end of the electromagnet pull rod, and two ends of the reset spring respectively abut against the iron core and the shaft shoulder of the electromagnet pull rod;
when the electromagnet is not electrified, the pull rod boss is positioned above the matching end through hole and in the shock pad groove; when the electromagnet is electrified, the electromagnet pull rod is pulled back, the reset spring is stretched, the pull rod boss is matched with the matching end through hole, the upper end surfaces of the pull rod boss and the matching end through hole are flush, the shock pad groove (1-1) is compressed until the matching end is abutted against the base (3), the locking is in place, and the shock pad is compressed; when the electromagnet is powered off, the electromagnet pull rod is reset under the action of a reset spring;
the pull rod boss is matched with the matching end through hole and used for axially limiting the pull rod of the electromagnet.
As a preferable technical scheme of the invention, shock pad grooves are arranged on two opposite sides of the shock pad, and the shock pad is I-shaped.
As a preferable technical scheme of the invention, the through hole at the matching end is a pyramid-shaped hole, and the lug boss of the pull rod is in a frustum pyramid shape.
Has the advantages that:
(1) the damping device can be switched between a damping state and a locking state through the contact and matching of the electromagnet and the matching end, and when the damping device is in the locking state, the initial alignment error caused by the degree of freedom is reduced, so that the initial alignment requirements of systems such as inertial navigation and the like are met.
(2) The invention adopts the push-pull electromagnet as the limit mechanism, which is beneficial to reducing the volume and the weight of the damping device; the push-pull electromagnet is controlled to be powered on or powered off, so that the damping device can rapidly switch the locking state and the damping state, and the disturbance on inertial navigation is small.
Drawings
Fig. 1 is a sectional view showing a locked state of a damper.
Fig. 2 is a sectional view showing a shock-absorbing state of the shock-absorbing device.
FIG. 3 is a schematic view of a cushion.
Fig. 4 is a front view of the electromagnet.
FIG. 5 is a partial schematic view of a inertial navigation mating end.
The shock absorption device comprises 1, a shock absorption pad, 1-1, a shock absorption pad groove, 2, an electromagnet, 2-1, an electromagnet pull rod, 2-2, a reset spring, 2-3, a pull rod boss, 3, a base, 4, an inertial navigation matching end, 4-1 and an inertial navigation matching end through hole
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The embodiment provides a damping device capable of meeting inertial navigation initial alignment requirements, which can be switched between a damping state and a locking state, and reduces an initial alignment error caused by inertial navigation freedom in the locking state.
The inertial navigation is arranged on the base 3 through the damping device; as shown in fig. 1-5, the damping device comprises a damping pad 1, an electromagnet 2 and an inertial navigation matching end 4;
the shock pad 1 is a block structure with set thickness and at least two sides provided with shock pad grooves 1-1, and when the two opposite sides are provided with the shock pad grooves 1-1, the shock pad 1 is in an I shape; the shock pad 1 is horizontally arranged on the upper surface of the base 3;
the number of the inertial navigation matching ends 4 corresponds to the number of the shock pad grooves 1-1 on the shock pad 1 one by one, and the inertial navigation matching ends 4 are positioned on the upper surface of the base 3 and on the inner side of the shock pad grooves 1-1;
the inertial navigation matching end 4 is L-shaped and comprises a vertical part and a horizontal part, the thickness of the horizontal part is smaller than that of the shock pad 1, a horizontal opening is formed in the end part of the horizontal part, an inertial navigation matching end through hole 4-1 is formed in the upper surface of the horizontal part of the inertial navigation matching end 4, and the inertial navigation matching end through hole 4-1 is a pyramid-shaped hole communicated with the opening of the horizontal part of the inertial navigation matching end 4; the vertical parts of the two inertial navigation matching ends 4 are fixedly connected with inertial navigation, and the horizontal parts of the two inertial navigation matching ends 4 are positioned in the two shock pad grooves 1-1 of the shock pad 1;
a through hole is arranged at the position, corresponding to each inertial navigation matching end 4, on the base 3, and an electromagnet 2 is arranged in each through hole;
each electromagnet 2 penetrates through a through hole corresponding to the electromagnet on the base 3 and horizontally enters a through hole 4-1 of the inertial navigation matching end of the horizontal part of the inertial navigation matching end 4 from an opening of the horizontal part of the inertial navigation matching end 4 corresponding to the electromagnet;
wherein, electro-magnet 2 includes: the iron core, the electromagnet pull rod 2-1, the reset spring 2-2 and the pull rod boss 2-3, the electromagnet pull rod 2-1 penetrates through the iron core, one end of the electromagnet pull rod is fixedly connected with the pull rod boss 2-3, the other end of the electromagnet pull rod is provided with a shaft shoulder which is integrally formed with the electromagnet pull rod 2-3, the reset spring 2-2 is sleeved on the electromagnet pull rod 2-1, one end of the reset spring props against the iron core of the electromagnet 2, and the other end of the reset spring props against the shaft shoulder at the bottom of the electromagnet pull rod; the pull rod boss 2-3 is in a frustum pyramid shape, the electromagnet 2 is not electrified initially, and the pull rod boss 2-3 is positioned above the inertial navigation matching end through hole 4-1 and in the shock pad groove 1-1; after the electromagnet 2 is electrified, the electromagnet pull rod 2-1 is pulled back, the reset spring 2-2 is stretched, the pull rod boss 2-3 is matched with the inertial navigation matching end through hole 4-1, the upper end faces of the pull rod boss and the inertial navigation matching end through hole are flush, the shock pad groove 1-1 is compressed until the matching end is abutted against the base 3 and is locked in place, and the inertial navigation matching end through hole 4-1 is used for limiting the axial locking of the pull rod boss 2-3 in place.
Specifically, the method comprises the following steps: the electromagnet 2 is electrically connected with an external control unit and is used for controlling the on/off of the electromagnet 2;
when inertial navigation and the base 3 need to be locked, the control unit controls the electromagnet 2 to be electrified, a coil in the electromagnet 2 generates a magnetic field, the electromagnet pull rod 2-1 is pulled back under the action of the magnetic field, the reset spring 2-2 is stretched, and the pull rod boss 2-3 is sunk into the through hole 4-1 at the matching end of the inertial navigation; when the end face of the pull rod boss 2-3 is flush with the upper surface of the inertial navigation matching end 4, the inertial navigation matching end 4 and the inertial navigation are locked in place, because the electromagnet pull rod 2-1 is aligned with the center of the inertial navigation matching end through hole 4-1, and the inertial navigation matching end through hole 4-1 axially limits the pull rod boss 2-3, the electromagnet 2 can accurately lock inertial navigation after being electrified, the inertial navigation and the base 3 are ensured to be in a fixed connection state, and at the moment, the shock pad 1 is compressed.
When the damping device needs to be in a damping state, the control unit controls the electromagnet 2 to be powered off, the magnetic field disappears, the electromagnet pull rod 2-1 resets under the action of the elastic force of the reset spring 2-2, the pull rod boss 2-3 is separated from the inertial navigation matching end through hole 4-1, the inertial navigation matching end 4 is unlocked, the inertial navigation rises under the action of the elastic force of the damping pad 1, the base 3 is separated from the inertial navigation matching end 4 until the inertial navigation rises to an initial position, and the base cannot vibrate through the electromagnet 2 to the inertial navigation after the power failure because the freedom degree of the inertial navigation is only restricted by the damping pad 1.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. 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 (3)
1. A damping device switchable between a damping state and a locking state, by means of which damping device a component to be damped is mounted on a base (3), characterized in that the damping device comprises: the shock absorption device comprises a shock absorption pad (1) and a locking and unlocking mechanism;
the shock pad (1) is positioned on the upper surface of the base (3);
the shock pad (1) is a block structure which is provided with shock pad grooves (1-1) at least on two sides and has a set thickness;
the locking and unlocking mechanism respectively penetrates through a through hole of the base (3) and a shock pad groove (1-1) on the shock pad (1) and is fixedly connected with a part to be damped; when the locking and unlocking mechanism is in a locking state, the part to be damped is fixedly connected with the base (3); when the locking and unlocking mechanism is in an unlocking state, the part to be damped is flexibly connected with the base (3) through the damping pad (1);
the locking and unlocking mechanism comprises an electromagnet (2) and a matching end;
the matching end comprises a vertical part and a horizontal part, the horizontal part is provided with an opening, and the upper surface of the horizontal part is provided with a matching end through hole which is communicated with the opening of the horizontal part of the matching end; the number of the matching ends is consistent with that of the shock pad grooves (1-1) and corresponds to that of the shock pad grooves one to one;
the vertical part of the matching end is fixedly connected with a part to be damped, and the horizontal part is positioned in two damping pad grooves (1-1) on the damping pad (1);
each electromagnet (2) respectively penetrates through a through hole of the base (3) and a horizontal opening of a horizontal part of the matching end to be respectively in contact fit with the corresponding matching end through hole, and when the electromagnets (2) are electrified, the locking and unlocking mechanism is in a locking state; when the electromagnet (2) is powered off, the locking and unlocking mechanism is in an unlocking state;
the electromagnet (2) comprises: the iron core, the electromagnet pull rod (2-1), the reset spring (2-2) and the pull rod boss (2-3);
the electromagnet pull rod (2-1) penetrates through the iron core, one end part of the electromagnet pull rod (2-1) is fixedly connected with the pull rod boss (2-3), a shaft shoulder which is integrally formed with the electromagnet pull rod is arranged at the other end of the electromagnet pull rod, and two ends of the reset spring (2-2) respectively abut against the iron core and the shaft shoulder of the electromagnet pull rod (2-1);
when the electromagnet (2) is not electrified, the pull rod boss (2-3) is positioned above the matching end through hole and in the shock pad groove (1-1); when the electromagnet (2) is electrified, the electromagnet pull rod (2-1) is pulled back, the reset spring (2-2) is stretched, the pull rod boss (2-3) is matched with the matching end through hole, the upper end faces of the pull rod boss and the matching end through hole are flush, the shock pad groove (1-1) is compressed until the matching end abuts against the base (3), and the shock pad groove is locked in place; when the electromagnet (2) is powered off, the electromagnet pull rod (2-1) resets under the action of the reset spring (2-2);
the pull rod boss (2-3) is matched with the matching end through hole and used for axially limiting the electromagnet pull rod (2-1).
2. A damping device switchable between a damping state and a locking state according to claim 1, characterized in that the damping pad (1) is provided with damping pad grooves (1-1) on opposite sides, the damping pad (1) being in the shape of an "i".
3. A damping device switchable between a damping state and a locking state according to claim 1, characterized in that the mating through hole is a pyramid shaped hole and the pull rod boss (2-3) is pyramid shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069741.8A CN109827036B (en) | 2019-01-24 | 2019-01-24 | Damping device capable of being switched between damping state and locking state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069741.8A CN109827036B (en) | 2019-01-24 | 2019-01-24 | Damping device capable of being switched between damping state and locking state |
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| Publication Number | Publication Date |
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| CN109827036A CN109827036A (en) | 2019-05-31 |
| CN109827036B true CN109827036B (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910069741.8A Active CN109827036B (en) | 2019-01-24 | 2019-01-24 | Damping device capable of being switched between damping state and locking state |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113096913A (en) * | 2019-12-23 | 2021-07-09 | 岳阳市永金起重永磁铁有限公司 | Damping electromagnet |
| CN113983308B (en) * | 2021-12-27 | 2022-04-01 | 中国工程物理研究院应用电子学研究所 | Optical vibration reduction platform with adjustable multiple degrees of freedom |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323273A (en) * | 2008-07-18 | 2008-12-17 | 南京捷诺环境技术有限公司 | Precision positioning and fast switch over type vibrating isolation system |
| CN102730313A (en) * | 2012-06-18 | 2012-10-17 | 无锡市宏源弹性器材有限公司 | Fast dynamic and static switching mechanism of carrying platform |
| CN204962180U (en) * | 2015-09-18 | 2016-01-13 | 重庆润通科技有限公司 | Shock -absorbing structure with locking function |
| CN108612972A (en) * | 2018-05-10 | 2018-10-02 | 广西思民科技有限公司 | A kind of adjustable electromechanical equipment damping device |
-
2019
- 2019-01-24 CN CN201910069741.8A patent/CN109827036B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323273A (en) * | 2008-07-18 | 2008-12-17 | 南京捷诺环境技术有限公司 | Precision positioning and fast switch over type vibrating isolation system |
| CN102730313A (en) * | 2012-06-18 | 2012-10-17 | 无锡市宏源弹性器材有限公司 | Fast dynamic and static switching mechanism of carrying platform |
| CN204962180U (en) * | 2015-09-18 | 2016-01-13 | 重庆润通科技有限公司 | Shock -absorbing structure with locking function |
| CN108612972A (en) * | 2018-05-10 | 2018-10-02 | 广西思民科技有限公司 | A kind of adjustable electromechanical equipment damping device |
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| CN109827036A (en) | 2019-05-31 |
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