Self-adaptive flexible supporting device

Abstract

The invention provides a self-adaptive flexible supporting device, and relates to the technical field of flexible supporting. The supporting device is simple in structure, can be mounted at the corresponding position of the mechanical and electrical product after being assembled, and is easy to mount and integrally maintain; by forming a parallelogram mechanism, it is guaranteed that the top face of the supporting base faces upwards all the time; the oil cylinder is supported through back pressure of the oil cylinder after being supported in place, the larger the pressure borne by the supporting base is, the larger the downward pressing displacement of the supporting base is, the larger the supporting force of the oil cylinder is, the vibration mode is stable, self-adaptive supporting can be provided for impact and vibration loads in the radar maneuvering transportation process, and the buffering effect is excellent.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible supports, and in particular to an adaptive flexible support device. Background Art

[0002] The modern battlefield is complex and changeable, and the power of radar products is constantly improving. As the size of radar antenna arrays continues to increase, its battlefield survival becomes increasingly difficult. Improving maneuverability is one of the important conditions for radar survival on the battlefield.

[0003] The increase in the size of the antenna array forces the radar to use sleeve or space linkage type array expansion and retraction mechanisms to reduce the size of the antenna and then assist the two-fold or three-fold folding mechanism to shrink the transportation envelope, thereby achieving the purpose of overall radar mobile transportation. The folded and retracted antenna array is distributed on both sides of the middle block back frame of the expansion and retraction mechanism. During mobile transportation, it is necessary to overcome vertical impact and vibration loads, which puts high requirements on the rigidity of the column frame that supports the expansion and retraction mechanism.

[0004] At present, in order to assist the column frame in supporting the antenna array, a supporting device needs to be installed under the column frame. However, conventional supporting devices often provide rigid support and cannot provide adaptive support according to the strength of the load, and the buffering effect of impact and vibration is poor. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an adaptive flexible support device, which solves the problem that the support device cannot provide adaptive support for impact and vibration loads during radar mobile transportation.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An adaptive flexible support device, the support device comprising: a fixed seat, a support seat, a first connecting rod, a second connecting rod, a first swing rod, a second swing rod and an oil cylinder;

[0008] The two ends of the fixing seat are respectively fixed with a first base and a second base;

[0009] The support seat forms a parallelogram mechanism with the second base through the first swing rod and the second swing rod;

[0010] One end of the oil cylinder is hinged to the second base, the other end of the oil cylinder is hinged to the first connecting rod and the second connecting rod, the free end of the first connecting rod is hinged to the support seat, and the free end of the second connecting rod is hinged to the first base.

[0011] Preferably, the supporting device comprises: a first fixed hinge shaft, a second fixed hinge shaft, a third fixed hinge shaft, a fourth fixed hinge shaft, a first movable hinge shaft, a second movable hinge shaft, a third movable hinge shaft and a fourth movable hinge shaft;

[0012] The second connecting rod is hinged to the first base through a first fixed hinge, the cylinder is hinged to the second base through a second fixed hinge, the first swing arm is hinged to the second base through a third fixed hinge, the second swing arm is hinged to the second base through a fourth fixed hinge, the second swing arm is hinged to the support seat through a first movable hinge, the first swing arm is hinged to the support seat through a second movable hinge, the cylinder, the first connecting rod and the second connecting rod are hinged through a third movable hinge, and the first connecting rod is hinged to the support seat through a fourth movable hinge.

[0013] Preferably, the fourth movable hinge shaft and the first movable hinge shaft or the second movable hinge shaft are one hinge shaft.

[0014] Preferably, when the oil cylinder is in a maximum extended state, the first connecting rod and the second connecting rod are parallel to each other.

[0015] Preferably, a static analysis is performed on a certain position during the movement of the support device. If the pressure on the support seat is F1, the support force F2 of the first connecting rod is:

[0016]

[0017] Wherein, L1 is the force arm of F1 relative to the midpoint of the line connecting the third fixed hinge axis and the fourth fixed hinge axis;

[0018] L2 is the moment arm of F2 relative to the midpoint of the line connecting the third fixed hinge axis and the fourth fixed hinge axis;

[0019] The pressure F' borne by the cylinder satisfies:

[0020]

[0021] Among them, F2′ is the pressure on the first connecting rod, which is equal to F2 in magnitude and opposite in direction;

[0022] F3 is the supporting force of the second connecting rod;

[0023] θ2 is the angle between F2′ and F′;

[0024] θ1 is the angle between F3 and F′;

[0025] The supporting forces F and F' of the cylinder are equal in magnitude and opposite in direction.

[0026] Preferably, the method for using the supporting device comprises:

[0027] The extension of the oil cylinder pushes the third movable hinge shaft to rotate upward around the first fixed hinge shaft, and then pushes the fourth movable hinge shaft to move upward. Since the support seat forms a parallelogram mechanism with the second base through the first swing rod and the second swing rod, the support seat keeps the top surface facing upward during the upward displacement process;

[0028] The oil cylinder retracts, driving the third movable hinge shaft to rotate downward around the first fixed hinge shaft, and then driving the fourth movable hinge shaft to move downward. Under the limitation of the parallelogram mechanism, the top surface of the support seat is kept facing upward during the downward displacement process.

[0029] The present invention provides an adaptive flexible support device. Compared with the prior art, it has the following beneficial effects:

[0030] In the present invention, the supporting device has a simple structure and can be installed to the corresponding position of the electromechanical product after being assembled, which is easy to install and maintain as a whole; by forming a parallelogram mechanism, it is ensured that the top surface of the supporting seat is always facing upward; after the oil cylinder is supported in place, it is supported by the back pressure of the oil cylinder. The greater the pressure on the supporting seat, the greater the downward displacement of the supporting seat, the greater the supporting force of the oil cylinder, the more stable the vibration mode, and the ability to provide adaptive support for impact and vibration loads during the mobile transportation of the radar, with excellent buffering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 Schematic diagram of the structure of the support device in an embodiment of the present invention.

[0033] Figure 2 It is a schematic structural diagram of the supporting device in the maximum extension state of the oil cylinder in an embodiment of the present invention.

[0034] Figure 3 It is a structural schematic diagram of the support device in the storage state in an embodiment of the present invention.

[0035] Figure 4 Schematic diagram of the motion principle of the support device in an embodiment of the present invention.

[0036] Figure 5 This is a motion principle diagram of the support device when the oil cylinder is in the maximum extension state in an embodiment of the present invention.

[0037] Figure 6 This is a first force analysis diagram of the support device in an embodiment of the present invention.

[0038] Figure 7 This is a second force analysis diagram of the support device in an embodiment of the present invention.

[0039] The reference numerals in the figure are set as: fixed seat 1, supporting seat 2, first connecting rod 3, second connecting rod 4, first swing arm 5, second swing arm 6, cylinder 7, first base 8, second base 9, first fixed hinge shaft 10, second fixed hinge shaft 11, third fixed hinge shaft 12, fourth fixed hinge shaft 13, first movable hinge shaft 14, second movable hinge shaft 15, third movable hinge shaft 16, fourth movable hinge shaft 17. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] The embodiment of the present application solves the problem that the support device cannot provide adaptive support for impact and vibration loads during the mobile transportation of the radar by providing an adaptive flexible support device.

[0042] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] Example:

[0044] like Figure 1-Figure 3 As shown, the present invention provides an adaptive flexible support device, the support device comprising: a fixed seat 1, a support seat 2, a first connecting rod 3, a second connecting rod 4, a first swing rod 5, a second swing rod 6 and a cylinder 7;

[0045] The two ends of the fixing base 1 are respectively fixed with a first base 8 and a second base 9;

[0046] The support seat 2 forms a parallelogram mechanism with the second base 9 through the first swing rod 5 and the second swing rod 6;

[0047] One end of the oil cylinder 7 is hinged to the second base 9 , the other end of the oil cylinder 7 is hinged to the first connecting rod 3 and the second connecting rod 4 , the free end of the first connecting rod 3 is hinged to the support seat 2 , and the free end of the second connecting rod 4 is hinged to the first base 8 .

[0048] like Figure 1-Figure 5 As shown, the supporting device includes: a first fixed hinge shaft 10, a second fixed hinge shaft 11, a third fixed hinge shaft 12, a fourth fixed hinge shaft 13, a first movable hinge shaft 14, a second movable hinge shaft 15, a third movable hinge shaft 16 and a fourth movable hinge shaft 17;

[0049] The second connecting rod 4 is hinged to the first base 8 through a first fixed hinge 10, the cylinder 7 is hinged to the second base 9 through a second fixed hinge 11, the first rocker arm 5 is hinged to the second base 9 through a third fixed hinge 12, the second rocker arm 6 is hinged to the second base 9 through a fourth fixed hinge 13, the second rocker arm 6 is hinged to the support seat 2 through a first movable hinge 14, the first rocker arm 5 is hinged to the support seat 2 through a second movable hinge 15, the cylinder 7, the first connecting rod 3 and the second connecting rod 4 are hinged through a third movable hinge 16, and the first connecting rod 3 is hinged to the support seat 2 through a fourth movable hinge 17.

[0050] like Figure 1-Figure 3 As shown, the fourth movable hinge shaft 17 and the first movable hinge shaft 14 or the second movable hinge shaft 15 are one hinge shaft, which effectively simplifies the structure of the supporting device.

[0051] like Figure 2 , Figure 5 As shown, when the oil cylinder 7 is in the maximum extension state, the first connecting rod 3 and the second connecting rod 4 are parallel to each other. At this time, the theoretical force on the oil cylinder 7 is zero, and the supporting device forms a rigid support, preventing the third movable hinge shaft 16 from entering the dead point position, causing the oil cylinder 7 to continue to extend and unable to drive the supporting seat 2 to continue to move upward.

[0052] The method for using the adaptive flexible support device includes:

[0053] The oil cylinder 7 extends to push the third movable hinge shaft 16 to rotate upward around the first fixed hinge shaft 10, and then pushes the fourth movable hinge shaft 17 to move upward. Since the support base 2 forms a parallelogram mechanism with the second base 9 through the first swing rod 5 and the second swing rod 6, the support base 2 keeps the top surface facing upward during the upward displacement process;

[0054] The oil cylinder 7 retracts, driving the third movable hinge shaft 16 to rotate downward around the first fixed hinge shaft 10, and then driving the fourth movable hinge shaft 17 to move downward. Under the limitation of the parallelogram mechanism, the top surface of the support seat 2 is kept facing upward during the downward displacement.

[0055] like Figure 6 , Figure 7 As shown, a static analysis is performed on a certain position during the movement of the support device. If the pressure on the support seat 2 is F1, the support force F2 of the first connecting rod 3 is:

[0056]

[0057] Wherein, L1 is the force arm of F1 relative to the midpoint of the line connecting the third fixed hinge axis 12 and the fourth fixed hinge axis 13;

[0058] L2 is the moment arm of F2 relative to the midpoint of the line connecting the third fixed hinge axis 12 and the fourth fixed hinge axis 13;

[0059] The pressure F′ borne by the oil cylinder 7 satisfies:

[0060]

[0061] Among them, F2′ is the pressure on the first connecting rod 3, which is equal to F2 in magnitude and opposite in direction;

[0062] F3 is the supporting force of the second connecting rod 4;

[0063] θ2 is the angle between F2′ and F′;

[0064] θ1 is the angle between F3 and F′;

[0065] The supporting forces F and F' of the oil cylinder 7 are equal in magnitude and opposite in direction.

[0066] The oil cylinder 7 is supported by the back pressure of the oil cylinder after being supported in place. The greater the pressure F1 borne by the support seat 2, the greater the downward displacement of the support seat 2, the greater the supporting force F of the oil cylinder 7, and the more stable the vibration mode.

[0067] When the supporting device is in place, if the first connecting rod 3 and the second connecting rod 4 are parallel to each other, Figure 5 As shown, the first fixed hinge shaft 10, the fourth movable hinge shaft 17 and the third movable hinge shaft 16 are in a straight line, and the support device forms a stable triangular support. It can be seen from the above formula that theoretically the pressure F′ borne by the cylinder 7 is 0, and the support mechanism forms a rigid support.

[0068] When the supporting device is in place, if the first connecting rod 3 and the second connecting rod 4 form an obtuse angle close to 180°, such as Figure 4 As shown, at this time, the pressure F′ on the cylinder 7 is very small. Under the action of the back pressure, the cylinder 7 is slightly compressed inward, the obtuse angle becomes smaller, and the pressure F′ on the cylinder 7 increases until the back pressure completely bears the pressure F′ on the cylinder 7.

[0069] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0070] In the embodiment of the present invention, the supporting device has a simple structure and can be installed at the corresponding position of the electromechanical product after being assembled, so it is easy to install and maintain as a whole; by forming a parallelogram mechanism, it is ensured that the top surface of the support seat 2 is always facing upward; the cylinder 7 is supported by the cylinder back pressure after being supported in place, and the greater the pressure F1 on the support seat 2, the greater the downward displacement of the support seat 2, and the greater the supporting force F of the cylinder 7. The vibration mode is stable, and it can provide adaptive support for impact and vibration loads during the mobile transportation of the radar, and the buffering effect is excellent.

[0071] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adaptive flexible support device, characterized in that: The supporting device comprises: a fixing seat (1), a supporting seat (2), a first connecting rod (3), a second connecting rod (4), a first swing rod (5), a second swing rod (6) and an oil cylinder (7); A first base (8) and a second base (9) are respectively fixed to two ends of the fixing seat (1); The support seat (2) forms a parallelogram mechanism with the second base (9) through the first swing rod (5) and the second swing rod (6); One end of the oil cylinder (7) is hinged to the second base (9), the other end of the oil cylinder (7) is hinged to the first connecting rod (3) and the second connecting rod (4), the free end of the first connecting rod (3) is hinged to the support seat (2), and the free end of the second connecting rod (4) is hinged to the first base (8).

2. The adaptive flexible support device according to claim 1, characterized in that: The supporting device comprises: a first fixed hinge shaft (10), a second fixed hinge shaft (11), a third fixed hinge shaft (12), a fourth fixed hinge shaft (13), a first movable hinge shaft (14), a second movable hinge shaft (15), a third movable hinge shaft (16) and a fourth movable hinge shaft (17); The second connecting rod (4) is hinged to the first base (8) via a first fixed hinge (10), the oil cylinder (7) is hinged to the second base (9) via a second fixed hinge (11), the first swing arm (5) is hinged to the second base (9) via a third fixed hinge (12), the second swing arm (6) is hinged to the second base (9) via a fourth fixed hinge (13), the second swing arm (6) is hinged to the support seat (2) via a first movable hinge (14), the first swing arm (5) is hinged to the support seat (2) via a second movable hinge (15), the oil cylinder (7), the first connecting rod (3) and the second connecting rod (4) are hinged via a third movable hinge (16), and the first connecting rod (3) is hinged to the support seat (2) via a fourth movable hinge (17).

3. The adaptive flexible support device according to claim 2, characterized in that: The fourth movable hinge shaft (17) and the first movable hinge shaft (14) or the second movable hinge shaft (15) are a hinge shaft.

4. The adaptive flexible support device according to claim 1, characterized in that: When the oil cylinder (7) is in the maximum extended state, the first connecting rod (3) and the second connecting rod (4) are parallel to each other.

5. The adaptive flexible support device according to claim 1, characterized in that: A static analysis is performed on a certain position during the movement of the support device. If the pressure on the support seat (2) is F1, the support force F2 of the first connecting rod (3) is: Wherein, L1 is the force arm of F1 relative to the midpoint of the line connecting the third fixed hinge axis (12) and the fourth fixed hinge axis (13); L2 is the force arm of F2 relative to the midpoint of the line connecting the third fixed hinge axis (12) and the fourth fixed hinge axis (13); The pressure F′ borne by the oil cylinder (7) satisfies: Wherein, F2′ is the pressure on the first connecting rod (3), which is equal to F2 in magnitude and opposite in direction; F3 is the supporting force of the second connecting rod (4); θ2 is the angle between F2′ and F′; θ1 is the angle between F3 and F′; The supporting forces F and F' of the oil cylinder (7) are equal in magnitude and opposite in direction.

6. The adaptive flexible support device according to claim 2, characterized in that: The method for using the supporting device comprises: The oil cylinder (7) extends to push the third movable hinge shaft (16) to rotate upward around the first fixed hinge shaft (10), and then pushes the fourth movable hinge shaft (17) to move upward. Since the support seat (2) forms a parallelogram mechanism with the second base (9) through the first swing rod (5) and the second swing rod (6), the support seat (2) keeps the top surface facing upward during the upward displacement process; The oil cylinder (7) retracts, driving the third movable hinge shaft (16) to rotate downward around the first fixed hinge shaft (10), and then driving the fourth movable hinge shaft (17) to move downward. Under the limitation of the parallelogram mechanism, the top surface of the support seat (2) is always kept facing upward during the downward movement.

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