CN209959793U - Buffering limiter for heavy-duty equipment platform - Google Patents
Buffering limiter for heavy-duty equipment platform Download PDFInfo
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- CN209959793U CN209959793U CN201920441968.6U CN201920441968U CN209959793U CN 209959793 U CN209959793 U CN 209959793U CN 201920441968 U CN201920441968 U CN 201920441968U CN 209959793 U CN209959793 U CN 209959793U
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Abstract
The utility model discloses a heavy load equipment buffering stopper for platform, use the shell as the basis, the shell bottom has the bottom plate soon, shell upper end installation spiral cover, spiral cover top center is equipped with a hole, the connector is worn out from the shell hole, be equipped with a hexagon boss on connector upper portion, a hexagonal packing ring overlaps on the boss, a screw for the connection is opened on connector upper portion, there is a shaft shoulder at the connector middle part, concave surface has last spacing dish with the lower surface cluster of spiral cover on the shaft shoulder, conical spring A, video disc group A, cluster has video disc group B under the shaft shoulder between concave surface and the bottom plate, video disc B, conical spring B, lower spacing dish. The buffer limiter has the characteristics of nonlinearity and six-direction movement. The buffer limiting stopper can provide larger rigidity instantly when the photoelectric equipment platform is subjected to larger centrifugal force, inertia force and overturning moment by using the buffer limiting stopper in pairs at a certain distance so as to balance external force and limit, and the photoelectric equipment platform is in a safe transportation state.
Description
Technical Field
The utility model relates to a photoelectric equipment is buffer stop for platform, especially a protecting against shock safety guarantee device in the on-vehicle heavy load equipment low frequency vibration isolation system platform, this buffer stop uses and symmetrical arrangement in pairs in the platform, is a non-linearity, six to the buffering stop of motion, when on-vehicle, carrier-borne photoelectric equipment platform receives the impact of arbitrary direction, can play the spacing guard action of safety buffering.
Background
With the development of modern military science and technology, the requirements on weaponry are further improved, the photoelectric equipment is not only more and more precise, but also the environment in which the photoelectric equipment faces is increasingly severe, and therefore higher technical requirements and environmental adaptability requirements are put forward on the modern photoelectric equipment. Because photoelectric equipment is relatively poor to the adaptability of vibration impact environment, in order to make photoelectric equipment can normally work, the heavy-duty equipment platform not only bottom need set up the isolator, still guarantee that photoelectric equipment puts up fast, removes maneuver and safe transportation. The following technical requirements are proposed for this purpose:
1. the vibration isolation part in the vibration isolation buffer platform system should have low natural frequency (f)nNot more than 3 Hz), the gaps H1 and H2 in the buffer limiter are vibration displacement space, and the natural frequency f of the conical springnLess than or equal to 3Hz is matched with the natural frequency of the vibration isolator.
2. The safety of the photoelectric equipment platform can be ensured under the mechanical environment conditions of large inertia force, centrifugal force, large overturning moment and the like in the braking and turning processes of vehicle-mounted and ship-based maneuvering processes.
3. The buffer limiting stopper has a certain movement space in any direction, enters the buffer limiting area, and along with the increase of displacement, the rigidity of the buffer limiting stopper is increased until the limit is reached.
4. The buffering limiter is installed at the bottom of the heavy-duty equipment platform, and the L distance is pulled away, so that the buffering limiter is used in pairs and is symmetrically arranged.
However, no report is provided on a special buffer stopper installed at the bottom of a vehicle-mounted heavy photoelectric platform.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a buffering stopper is used to on-vehicle heavy load equipment platform is provided, this buffering stopper have nonlinearity, cushion spacing characteristics, and it can ensure that heavy load equipment platform when receiving great centrifugal force, inertial force, overturning moment, and the buffering stopper can provide great rigidity in the twinkling of an eye to balanced external force makes the optoelectronic device platform be in balanced safe state.
The utility model relates to a buffer limiter for a vehicle-mounted heavy-load equipment platform, which is based on a shell, wherein a bottom plate is screwed at the bottom of the shell, a spiral cover is arranged at the upper end of the shell, a hole is arranged at the center of the top of the spiral cover, and a spherical recess is arranged at the center of the bottom of the spiral cover; the connector penetrates out of the shell hole, a hexagonal boss is arranged at the top of the connector, a hexagonal washer is sleeved on the boss, and a screw hole for connection is arranged at the upper part of the connector; the method is characterized in that: the middle part of the connector is provided with a shaft shoulder, and an upper limiting disc, a conical spring A, a disc A and a disc group A are sequentially connected in series on the outer edge of the connector from the lower surface of the screw cap to the upper concave surface of the shaft shoulder; a disc group B, a disc B, a conical spring B and a lower limiting disc are sequentially connected between the lower concave surface of the shaft shoulder and the bottom plate on the outer edge of the connector in series, and a horizontal buffering limiting rubber ring is nested on the periphery of the shaft shoulder.
The rigidity of the disc A and the disc B, the rigidity of the disc group A and the rigidity of the disc B, the rigidity of the cone spring A and the cone spring B, and the directions of the disc A and the disc B are the same and opposite, and the disc A and the disc B have the upper and lower bidirectional buffering and limiting characteristics, and are stacked and connected with the back of the disc A in series.
The clearance between the disc A and the upper limit disc is the same as the clearance between the disc B and the lower limit disc, and is H1.
The inner surface and the outer surface of the horizontal buffering limiting rubber ring are respectively provided with a semicircular convex ring, and a gap H2 is reserved between the semicircular convex rings and the inner surface of the shell.
The center of the lower limiting disc is provided with a spherical bulge which is contacted with the bottom plate, and a convex cylinder at the center of the lower limiting disc is inserted from the lower end of the connector.
The center of the upper surface of the upper limiting disc is provided with a spherical bulge which is contacted with the spherical depression of the rotary cover.
The buffer limiting stopper is installed at the bottom of the heavy-duty equipment platform, is pulled away by an L distance, is used in pairs and is symmetrically arranged.
The utility model has the advantages that:
1) the buffer limiting devices are installed at the bottom of the heavy-duty equipment platform in pairs, when the photoelectric equipment platform vertically moves, the vibration displacement H1 of the buffer limiting devices is larger than the allowable vibration displacement of the platform, the rigidity of a conical spring in the buffer limiting devices is small, the work of a vibration isolator at the bottom of the photoelectric equipment platform is not influenced, and the whole vibration isolation effect of the system is ensured; when the photoelectric equipment platform horizontally vibrates, the horizontal gap H2 of the buffer limiter is larger than the horizontal vibration displacement of the platform, and the vibration reduction effect of the vibration isolator at the bottom of the photoelectric equipment platform on the horizontal vibration is not influenced. When the impact displacement is larger than the vibration displacement, the buffer limiting device enters a buffer limiting area, the rigidity of the buffer limiting device is increased along with the increase of the displacement until the buffer limiting device is limited, and the safety and the stability of the whole system are finally kept.
2) The back of the disc and the back of the disc group are connected in series to increase the buffer displacement space, and the disc group adopts a superposition installation mode to ensure that the buffer limiter can provide larger rigidity instantly when the photoelectric equipment platform is impacted greatly so as to balance the impact force and limit the position.
3) By changing the thickness and number of the discs and the disc group, series products with different rigidity characteristics and different bearing capacities can be obtained.
4) The buffer limiter only has triaxial buffer limiting function when used alone, pulls open the L distance, uses in pairs and symmetrical arrangement, then has the effect of antidumping moment simultaneously.
Drawings
Figure 1 is a schematic structural view of the present invention,
fig. 2 is a working state diagram of the present invention.
Detailed Description
The structure of the utility model is as shown in figure 1, the buffering limiter for the vehicle-mounted heavy-load equipment platform of the utility model is mainly based on a shell 13, a bottom plate 14 is screwed at the bottom of the shell, a screw cap 3 is arranged at the upper end of the shell, a hole is arranged at the center of the top of the screw cap, and a spherical recess is arranged at the center of the bottom of the screw cap; the connector 2 penetrates out of the shell hole, a hexagonal boss is arranged at the top of the connector, a hexagonal washer 1 is sleeved on the boss, and a screw hole for connection is arranged at the upper part of the connector; the method is characterized in that: a shaft shoulder is arranged in the middle of the connector 2, and an upper limiting disc 4, a conical spring A5, a disc A6 and a disc group A7 are sequentially connected in series between the lower surface of the screw cap and the concave surface of the shaft shoulder on the outer edge of the connector 2; a disc group B9, a disc B10, a conical spring B11 and a lower limiting disc 12 are sequentially connected between the lower concave surface of the shaft shoulder and the bottom plate on the outer edge of the connector 2 in series, and a horizontal buffering limiting rubber ring 8 is nested on the periphery of the shaft shoulder.
Rigidity between a disc A6 and a disc B10, rigidity between a disc group A7 and a disc group B9, and rigidity between a conical spring A5 and a conical spring B11 which are connected in series up and down on a shaft shoulder in the middle of the connector 2 are the same, directions are opposite, the connector has an up-and-down bidirectional buffering limiting characteristic, and the disc group A7 and the disc group B9 are formed by overlapping a plurality of discs and are connected with the back of the disc A in series.
The gap between the disc a6 and the upper stopper disc is the same as the gap between the disc B10 and the lower stopper disc.
The inner surface and the outer surface of the horizontal buffering limiting rubber ring 8 are both provided with semicircular convex rings, and gaps H2 are reserved between the semicircular convex rings and the inner surface of the shell 13.
The center of the lower limiting disc 12 is provided with a spherical bulge which is contacted with the bottom plate 14, and a cylinder which is protruded out of the center of the lower limiting disc is inserted from the lower end of the connector 2.
The center of the upper surface of the upper limiting disc 4 is provided with a spherical bulge which is contacted with the spherical depression of the screw cap 3.
Fig. 2 is the utility model discloses an operating condition diagram, and visible during operation, the vertical mode of buffering stopper is installed in pairs in the bottom of equipment platform 15, and the L distance will be far away, arranges as far as possible at platform direction of advance both ends to reduce the angle of overturning of platform. The bottom of the buffer limiter is arranged on a chassis 16 assembled by channel steel, and the shock-isolation buffer platform of the vehicle-mounted photoelectric equipment is formed by fast connection of a square guide hole and a waist-shaped fast locking hole on the chassis with a vehicle body guide post and a fast lock.
The technical approach of the utility model is as follows:
1) the whole vibration isolation system platform realizes low natural frequency fnLess than or equal to 3Hz, so the rigidity K of the bottom vibration isolator is smaller.
2) The buffer limiter adopts a cone spring and a disc spring A1The disc spring B is connected in series, the rigidity of the conical spring is less than that of the vibration isolator, and the whole vibration isolator is not affected
3) Because the buffer limiting stopper is provided with gaps H1 and H2 in the vertical direction and the horizontal direction, the interference to the movement of the photoelectric equipment mounting platform in the 6-freedom-degree direction is avoided.
The working process of the photoelectric platform equipment for horizontal vibration isolation buffering is as follows:
the photoelectric platform is a vehicle-mounted photoelectric equipment platform vibration isolation buffering system formed by a vibration isolator, a buffering limiter and a stabilizer at the bottom, and in order to achieve a better vibration isolation buffering effect, the vibration isolator at the bottom selects a lower natural frequency fnLess than or equal to 3Hz vibration isolator to achieve better vibration isolation effect. Therefore, the rigidity of the buffer limiting stopper and the stabilizer in the three-axis vibration direction is smaller than that of the vibration isolator, the vibration displacement is larger than that of the vibration isolator, and the interference influence on the vibration isolation performance is avoided.
When the photoelectric platform is in transportation and is subjected to larger centrifugal force, inertia force and overturning moment, the inherent frequency of the vibration isolator at the bottom is lower, and the impact resistance is poorer, so that the photoelectric platform equipment can be stably and safely transported flexibly, and the paired and symmetrical buffer limiting stoppers which are convenient to use are required to provide larger rigidity instantly so as to balance the centrifugal force, the inertia force and the overturning moment. Therefore, the bumper disc A and the disc group B are connected in series in a back-to-back mode, so that the buffer displacement space is enlarged, and the disc B is installed in a folding mode, so that the buffer limiter can provide high rigidity instantly when the photoelectric equipment platform is impacted greatly, impact force is balanced, and limiting is achieved. The photoelectric equipment platform is in a balanced safe state in the transportation process.
The utility model discloses the concrete application way is many, and the above-mentioned only is the preferred embodiment of the utility model, should point out, to ordinary skilled person in this technical field, under the prerequisite that does not deviate from the utility model discloses the principle, can also make a plurality of improvements, and these improvements also should be regarded as the utility model discloses a scope of protection.
Claims (6)
1. A buffering limiter for a heavy-duty equipment platform is based on a shell (13), a bottom plate (14) is screwed at the bottom of the shell, a rotary cover (3) is arranged at the upper end of the shell, a hole is formed in the center of the top of the rotary cover, and a spherical recess is formed in the center of the bottom of the rotary cover; the connector (2) penetrates out of the shell hole, a hexagonal boss is arranged at the top of the connector, a hexagonal washer (1) is sleeved on the boss, and a screw hole for connection is arranged at the upper part of the connector; the method is characterized in that: a shaft shoulder is arranged in the middle of the connector (2), and an upper limiting disc (4), a conical spring A (5), a disc A (6) and a disc group A (7) are sequentially connected in series on the outer edge of the connector (2) from the lower surface of the screw cap to the concave surface on the shaft shoulder; a disc group B (9), a disc B (10), a conical spring B (11) and a lower limiting disc (12) are sequentially connected between the lower concave surface of the shaft shoulder and the bottom plate on the outer edge of the connector (2), and a horizontal buffering limiting rubber ring (8) is nested on the periphery of the shaft shoulder.
2. The bump stop of claim 1, wherein: the rigidity of the disc A (6) and the disc B (10), the rigidity of the disc group A (7) and the rigidity of the disc group B (9), the rigidity of the conical spring A (5) and the rigidity of the conical spring B (11) are the same, the directions of the disc groups are opposite, the disc groups A (7) and the disc groups B (9) are in bidirectional buffer limiting, and the disc groups A (7) and the disc groups B (9) are formed by overlapping a plurality of discs and are connected with the disc A in series in a back-to-back mode.
3. The bump stop of claim 1 or 2, wherein: the clearance between the disc A (6) and the upper limit disc is the same as the clearance between the disc B (10) and the lower limit disc.
4. The bump stop of claim 1 or 2, wherein: the inner surface and the outer surface of the horizontal buffering limiting rubber ring (8) are respectively provided with a semicircular convex ring, and a gap is reserved between the semicircular convex ring and the inner surface of the shell (13).
5. The bump stop of claim 1, wherein: the center of the lower limiting disc (12) is provided with a spherical bulge which is contacted with the bottom plate (14), and a cylinder which protrudes out of the center of the lower limiting disc is inserted from the lower end of the connector (2).
6. The bump stop of claim 1, wherein: the center of the upper surface of the upper limiting disc (4) is provided with a spherical bulge which is contacted with the spherical depression of the screw cap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441968.6U CN209959793U (en) | 2019-04-03 | 2019-04-03 | Buffering limiter for heavy-duty equipment platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441968.6U CN209959793U (en) | 2019-04-03 | 2019-04-03 | Buffering limiter for heavy-duty equipment platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209959793U true CN209959793U (en) | 2020-01-17 |
Family
ID=69241480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920441968.6U Active CN209959793U (en) | 2019-04-03 | 2019-04-03 | Buffering limiter for heavy-duty equipment platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209959793U (en) |
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2019
- 2019-04-03 CN CN201920441968.6U patent/CN209959793U/en active Active
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