An electrically adjustable level support device

Abstract

The present application relates to the field of mechanical equipment, and discloses a kind of electrically adjusted horizontal support device, it includes seat frame, support beam is formed integral rigid frame structure on seat frame;Support beam is provided with moving mechanism, moving mechanism drives horizontal bin reciprocating movement along support beam;It further includes for real-time detection inclination angle inclination sensor, and for controlling the action of moving mechanism PLC controller, inclination sensor is connected with PLC controller, support beam is circular arc configuration, and the curvature center of its setting corresponds to the gravity center of motion carrier.The present application solves the defect that platform height changes in the adjustment process of traditional support device;Adopt the active closed-loop control mode of double-shaft inclination sensor and PLC controller, response speed is fast, can real-time compensate the high-frequency inclination and violent shaking of carrier;Integral structure is simple, maintenance is simple, service life is long, can be widely applied to ship, automobile, train, engineering machinery, special vehicle and other various motion carriers.

Description

Technical Field

[0001] This invention relates to the field of mechanical devices, and more particularly to an electrically adjustable leveling support device. Background Technology

[0002] On moving platforms such as ships, vehicles, and construction machinery, personnel work platforms, living facilities, precision instruments and equipment, and medical surgical instruments all require a stable horizontal support environment. The tilting, swaying, and vibration generated during the movement of these platforms not only affect personnel comfort and work efficiency, but can also lead to the failure of precision equipment, surgical failures, or even safety accidents. Currently, the support devices used to achieve horizontal support mainly involve arranging 3-4 hydraulic or electric push rods at the bottom of the platform. A level and controller adjust the extension and retraction of each push rod, changing the height of each support point to achieve levelness. This solution is typically complex in structure, has high manufacturing and maintenance costs, can only adjust the platform's angle, cannot compensate for spatial displacement caused by platform tilting, and has a slow response speed, making it unsuitable for scenarios involving high-frequency turbulence and severe shaking. This has resulted in long-standing technical bottlenecks in fields such as shipboard anti-sickness, vehicle-mounted medical surgery, mobile precision measurement, and vehicle-mounted weapon aiming.

[0003] Therefore, developing an automatic leveling support device with simple structure, rapid response, and good stability is an urgent problem to be solved. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing an electrically adjustable leveling support device that can maintain both the horizontal angle and spatial position of the horizontal chamber when the moving carrier tilts in any direction.

[0005] The technical solution adopted in this invention is as follows: An electrically adjustable leveling support device includes a base frame with a support beam forming an integral rigid frame structure; a moving mechanism is provided on the support beam, and a horizontal compartment serving as a load-bearing platform is connected and fixed to the moving mechanism, which can drive the horizontal compartment to reciprocate along the support beam; it also includes an inclination sensor for real-time detection of tilt angle and a PLC controller for controlling the movement of the moving mechanism, wherein the inclination sensor and the PLC controller are communicatively connected.

[0006] Preferably, the support beam has an arc-shaped structure, with its curvature center corresponding to the center of gravity of the moving carrier, and the moving mechanism can drive the horizontal compartment to move back and forth along the arc direction of the support beam.

[0007] Preferably, the support beam includes a crossbeam that spans laterally across the seat frame, the moving mechanism includes a transverse moving mechanism that reciprocates along the crossbeam, and the horizontal compartment is fixedly connected to the transverse moving mechanism.

[0008] Preferably, the support beam further includes longitudinal beams arranged parallel and symmetrically on both sides of the frame, and the moving mechanism further includes a longitudinal movement mechanism that can reciprocate along the longitudinal beams. The two ends of the crossbeam are fixedly connected to the two longitudinal movement mechanisms respectively, and are mounted on the longitudinal beams on both sides through the longitudinal movement mechanisms. The tilt sensor is a dual-axis tilt sensor.

[0009] Preferably, both the crossbeam and the longitudinal beam are provided with transmission racks, and the curvature of the transmission racks corresponds to that of the support beams; the moving mechanism includes a transmission gear meshing with the transmission rack, the transmission gear being fixedly mounted on the output shaft of the geared motor, and the reciprocating motion of the moving mechanism is realized through the meshing transmission of the gear and rack.

[0010] Preferably, both the crossbeam and the longitudinal beam are provided with guide rails, and the guide rollers on the moving mechanism are tumblingly connected to the guide rails to bear the weight of the moving mechanism and restrict its direction of movement.

[0011] Preferably, the horizontal compartment is suspended below the traversing mechanism by at least three suspension cables, with the upper end of the suspension cables hinged to the bottom of the traversing mechanism and the lower end hinged to the top of the horizontal compartment.

[0012] Preferably, the horizontal compartment is rigidly supported above the transverse mechanism by a bracket, with the lower end of the bracket connected to the upper surface of the transverse mechanism and the upper end connected to the lower surface of the horizontal compartment.

[0013] Preferably, two crossbeams are arranged in parallel intervals, and the transverse movement mechanism is provided with two sets of reduction motors and transmission gears corresponding to the two crossbeams respectively. The two transmission gears are respectively connected to the transmission racks of the two crossbeams; at the same time, two sets of guide rollers are respectively connected to the guide rails of the two crossbeams.

[0014] Preferably, the longitudinal beam is elastically connected to the seat frame via a shock absorber. The shock absorber includes a hollow telescopic rod that is telescopically inserted into a sealed cylinder. The cylinder is pre-filled with an oil medium. A throttling orifice and a one-way valve are provided at the bottom of the telescopic rod to connect to the sealed cylinder. The viscous resistance generated by the oil medium flowing through the throttling orifice provides the telescopic rod's extension and contraction damping. A buffer spring is sleeved on the outside of the telescopic rod. The upper end of the buffer spring is connected to the telescopic rod, and the lower end abuts against the upper surface of the seat frame.

[0015] The beneficial effects of this invention are as follows: This invention is the first to propose a design where the center of curvature of the arc-shaped guide rail corresponds to the center of gravity of the moving carrier, solving the problem of platform height changes during adjustment in traditional support devices. When the drive mechanism moves along the guide rail, the height and horizontal angle of the horizontal chamber remain constant, with only horizontal displacement occurring in the opposite direction to the carrier's tilt direction. This achieves dual stability in both the spatial position and horizontal angle of the horizontal chamber, a technical effect that existing leveling technologies cannot achieve.

[0016] This invention employs an active closed-loop control method using a dual-axis tilt sensor and a PLC controller, resulting in a fast response speed and real-time compensation for high-frequency tilting and severe shaking of the carrier. It solves the problems of delayed adjustment response and continuous oscillation in existing support devices, ensuring good stability of the horizontal chamber even during severe carrier jolting.

[0017] This invention features a simple overall structure, eliminating complex hydraulic systems, universal joint structures, and gyro stabilization devices. It has fewer components, and its manufacturing cost is only 1 / 10 of that of traditional gyro-stabilized platforms. All components are general-purpose standard parts, making them easy to procure, simple to maintain, and long-lasting, suitable for large-scale industrial production applications.

[0018] This invention can be widely applied to various moving vehicles such as ships, automobiles, trains, construction machinery, and special vehicles, for the manufacture of anti-nausea beds, anti-nausea tables, medical surgical platforms, precision instrument support platforms, and vehicle-mounted weapon stabilization platforms. It can effectively solve industry problems such as seasickness during ship voyages, the inability to perform vehicle-mounted medical surgeries, and low accuracy in mobile precision measurements, possessing extremely high economic and social value. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0022] Figure 3 for Figure 1 A magnified schematic diagram of the structure at point B in the middle.

[0023] Figure 4-5 This is a three-dimensional structural diagram of another embodiment of the present invention.

[0024] Figure 6 This is a cross-sectional view of the damping shock absorber in this invention.

[0025] In the diagram: 10--Seat frame; 21--Crossbeam; 22--Longitudinal beam; 31--Transverse movement mechanism; 32--Longitudinal movement mechanism; 33--Drive rack and pinion; 34--Drive gear; 35--Gear motor; 36--Guide rail; 37--Guide roller; 40--Horizontal chamber; 41--Suspension cable; 42--Bracket; 50--Tilt sensor; 60--Shock absorber; 61--Telescopic rod; 62--Sealed cylinder; 63--Throttle orifice; 64--Buffer spring; 65--Check valve. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] like Figure 1-6 As shown, an electrically adjustable leveling support device includes a base frame 10, which serves as a mounting base connected to a moving carrier. A support beam is provided on the base frame 10 to form an integral rigid frame structure. A moving mechanism is provided on the support beam. A horizontal chamber 40, which serves as a bearing platform, is connected and fixed to the moving mechanism. The moving mechanism can drive the horizontal chamber 40 to reciprocate along the support beam. The device also includes an inclination sensor 50 for real-time detection of the tilt angle and a PLC controller for controlling the movement of the moving mechanism. The inclination sensor 50 is communicatively connected to the PLC controller.

[0028] In use, this device is fixedly connected to moving carriers such as ships and vehicles via the base 10. When the moving carrier tilts or sways, the tilt sensor 50 detects the tilt angle in real time and transmits the tilt angle data to the PLC controller. The PLC controller instructs the moving mechanism to act according to the tilt angle data, compensating for the positional shift of the horizontal compartment 40 caused by the tilt of the moving carrier, so that the horizontal compartment 40 always maintains a horizontal state and its initial spatial position. This embodiment adopts a closed-loop control method, which has a fast response speed and high control accuracy, and can compensate for the dynamic tilt of the moving carrier in real time, avoiding the tilting and swaying of the horizontal compartment 40 caused by the moving carrier.

[0029] In a preferred embodiment, the support beam has an arc-shaped structure, with its curvature center corresponding to the center of gravity of the moving carrier. The moving mechanism can drive the horizontal chamber 40 to reciprocate along the arc direction of the support beam, thereby ensuring that the height position of the horizontal chamber 40 remains essentially constant during movement, with only horizontal displacement compensation occurring. This embodiment solves the problem of significant platform height changes during leveling in traditional support devices, maintaining the relative constancy of the spatial position of the horizontal chamber 40.

[0030] Preferably, the support beam includes a crossbeam 21 that spans laterally across the seat frame 10, and the moving mechanism includes a transverse moving mechanism 31 that reciprocates along the crossbeam 21. The horizontal compartment 40 is fixedly connected to the transverse moving mechanism 31. When the moving vehicle tilts or sways, the transverse moving mechanism 31 can drive the horizontal compartment 40 to move left and right along the arc direction of the crossbeam 21, compensating for the lateral tilt of the moving vehicle and keeping the horizontal compartment 40 horizontally level at all times. This effectively counteracts the rolling motion of the moving vehicle and is suitable for applications such as ships with large rolling amplitudes and high frequencies.

[0031] Furthermore, the support beam also includes longitudinal beams 22 arranged parallel and symmetrically on both sides of the seat frame 10. The moving mechanism also includes a longitudinal movement mechanism 32 that can reciprocate along the longitudinal beams 22. The two ends of the crossbeam 21 are fixedly connected to the two longitudinal movement mechanisms 32 respectively, and are mounted on the longitudinal beams 22 on both sides through the longitudinal movement mechanisms 32. The tilt sensor 50 is a dual-axis tilt sensor. When the moving carrier tilts or sways, the longitudinal movement mechanism 32 can drive the crossbeam 21 to move back and forth along the direction of the longitudinal beams 22, thereby keeping the longitudinal position and horizontal angle of the horizontal chamber 40 unchanged. Through independent adjustment of the transverse and longitudinal axes, the tilt of the carrier in any direction can be compensated, achieving all-round horizontal stability.

[0032] Preferably, both the crossbeam 21 and the longitudinal beam 22 are equipped with transmission racks 33, and the curvature of the transmission racks 33 corresponds to that of the support beams. The moving mechanism includes a transmission gear 34 meshing with the transmission rack 33, and the transmission gear 34 is fixedly mounted on the output shaft of the reduction motor 35. The reciprocating motion of the moving mechanism is achieved through the meshing transmission of the gear and rack. The gear and rack transmission method has high transmission efficiency, strong load-bearing capacity, and smooth movement, and can meet the adjustment requirements of large loads and high frequencies.

[0033] Preferably, both the crossbeam 21 and the longitudinal beam 22 are provided with guide rails 36, and the guide rollers 37 of the moving mechanism are tactilely connected to the guide rails 36 to support the weight of the moving mechanism and limit its direction of movement. The cooperation between the guide rollers 37 and the guide rails 36 effectively prevents the moving mechanism from swaying and deviating, ensuring the stability of the moving mechanism's movement.

[0034] During operation, the input terminal of the PLC controller is communicatively connected to the tilt sensor 50, and the output terminal is communicatively connected to the geared motors 35 of the transverse mechanism 31 and the longitudinal mechanism 32, respectively. The PLC controller receives the signal from the tilt sensor 50, performs calculations, and sends forward, reverse, or stop commands to the corresponding geared motors 35. When the moving vehicle tilts to the left, the PLC controller controls the geared motor 35 of the transverse mechanism 31 to rotate forward, driving the transmission gear 34 to rotate synchronously, thus moving the transverse mechanism 31 to the right along the transmission rack 33 of the crossbeam 21. When the tilt sensor 50 detects the tilt angle returning to normal, the geared motor 35 stops rotating and is locked by its built-in electromagnetic brake. Conversely, when the moving vehicle tilts to the right, the PLC controller controls the geared motor 35 of the transverse mechanism 31 to rotate in reverse, moving the transverse mechanism 31 to the left until the signal returns to normal and it stops. When the moving carrier tilts forward, the PLC controller controls the geared motor 35 of the longitudinal movement mechanism 32 to rotate forward, driving the entire crossbeam 21 to move backward along the longitudinal beam 22. When the tilt sensor 50 detects that the tilt angle has returned to normal, the geared motor 35 stops rotating and locks. Conversely, when the moving carrier tilts backward, the PLC controller controls the geared motor 35 of the longitudinal movement mechanism 32 to rotate in reverse, driving the entire crossbeam 21 to move forward until the tilt angle returns to normal and stops. Since the curvature centers of the crossbeam 21 and the longitudinal beam 22 are both set to correspond to the center of gravity of the carrier, the height and horizontal angle of the horizontal chamber 40 can be well maintained when the moving mechanism moves along the support beam, with only horizontal displacement occurring in the opposite direction to the tilt direction of the carrier, thus achieving dual stability of the spatial position and horizontal angle of the horizontal chamber 40.

[0035] Preferably, the horizontal chamber 40 is suspended below the transverse mechanism 31 by at least three suspension cables 41. The upper end of the suspension cables 41 is hinged to the bottom of the transverse mechanism 31, and the lower end is hinged to the top of the horizontal chamber 40. The hinged structure of the suspension cables 41 ensures that the horizontal chamber 40 can remain horizontal in any position, while also providing a certain degree of buffering and shock absorption, further isolating the vibration of the carrier.

[0036] As a second implementation method, such as Figure 4-5 As shown, the horizontal chamber 40 can also be rigidly supported above the transverse mechanism 31 by a bracket 42. The lower end of the bracket 42 is connected to the upper surface of the transverse mechanism 31, and the upper end is connected to the lower surface of the horizontal chamber 40. Compared with the aforementioned suspension method, this embodiment has a more compact overall structure, significantly reducing the vertical space occupied by the device, and is suitable for space-constrained applications such as vehicle cabs and small ship cabins; moreover, the rigid connection method avoids the swaying that may occur in the aforementioned suspension structure, resulting in higher dynamic stability and making it suitable for carrying small precision instruments and equipment.

[0037] Preferably, the support beam can be configured as a dual-channel structure to widen the contact span between the moving mechanism and the support beam. Specifically, the crossbeams 21 are configured as two parallel and spaced beams. The transverse moving mechanism 31 is provided with two sets of reduction motors 35 and transmission gears 34 corresponding to the two crossbeams 21, and the two transmission gears 34 are respectively connected to the transmission racks 33 of the two crossbeams 21. At the same time, two sets of guide rollers 37 are respectively rolled on the guide rails 36 of the two crossbeams 21 to form a dual-channel guiding structure, so as to improve the torsional stiffness and anti-tipping ability of the moving mechanism, avoid the tilting, jamming and shaking of the moving mechanism under heavy load or violent shaking, and further improve the dynamic stability of the horizontal chamber 40, which is suitable for application scenarios with large load-bearing capacity.

[0038] Preferably, the longitudinal beam 22 is elastically connected to the seat frame 10 via a shock absorber 60 to buffer the high-frequency vibrations and impact loads transmitted by the moving carrier. Figure 6 As shown, the shock absorber 60 includes a hollow telescopic rod 61, which is telescopically inserted into a sealed cylinder 62. The cylinder is pre-filled with oil medium. A throttling hole 63 is opened at the bottom of the telescopic rod 61, which communicates with the sealed cylinder 62. The viscous resistance generated by the oil medium flowing through the throttling hole 63 provides the telescopic damping of the telescopic rod 61. A buffer spring 64 is sleeved on the outside of the telescopic rod 61 to further dissipate vibration energy and provide the thrust for the telescopic rod 61 to return to its original position. The upper end of the buffer spring 64 is connected to the telescopic rod 61, and the lower end abuts against the upper surface of the seat frame 10. When the moving carrier experiences high-frequency vibration or impact, the shock absorber 60 absorbs vibration energy through the compression and extension of the telescopic rod 61 and the buffer spring 64, achieving rapid vibration attenuation and maintaining the stability of the horizontal chamber 40. At the same time, the rigid rod structure of the damping telescopic rod 61 can effectively limit the lateral and longitudinal displacement of the longitudinal beam 22, preventing the longitudinal beam 22 from swaying and shaking.

[0039] Furthermore, the bottom of the telescopic rod 61 is also provided with a one-way valve 65 communicating with the sealed cylinder 62. The one-way valve 65 only allows the oil medium to flow unidirectionally from the sealed cylinder 62 to the hollow structure of the telescopic rod 61. When the telescopic rod 61 is impacted and pressed down, the one-way valve 65 opens, and the oil medium in the sealed cylinder 62 flows rapidly to the hollow structure of the telescopic rod 61 through the throttle orifice 63 and the one-way valve 65. When the telescopic rod 61 returns, the one-way valve 65 automatically closes, and the oil medium in the telescopic rod 61 can only flow back to the sealed cylinder 62 through the throttle orifice 63 at a relatively slow flow rate. This achieves a damping effect of fast shock absorption and slow rebound, effectively avoiding secondary vibrations caused by the rebound of the shock absorber, and further improving the dynamic stability of the horizontal chamber 40.

[0040] The above-disclosed embodiments are merely specific examples of the present invention, but the present invention is not limited thereto. For those skilled in the art, any modifications made without departing from the principles of the present invention should be considered to fall within the scope of protection of the present invention.

Claims

1. An electrically adjustable leveling support device, characterized in that: The system includes a frame (10) on which a support beam is provided to form an integral rigid frame structure; a moving mechanism is provided on the support beam, and a horizontal compartment (40) serving as a bearing platform is connected and fixed to the moving mechanism, which drives the horizontal compartment (40) to move back and forth along the support beam; it also includes an inclination sensor (50) for real-time detection of tilt angle, and a PLC controller for controlling the movement of the moving mechanism, wherein the inclination sensor (50) is communicatively connected to the PLC controller; The support beam has an arc-shaped structure, and its curvature center is set to correspond to the center of gravity of the moving carrier. The moving mechanism drives the horizontal compartment (40) to move back and forth along the arc direction of the support beam. The support beam includes a crossbeam (21) that spans across the seat frame (10), and the moving mechanism includes a transverse moving mechanism (31) that moves back and forth along the crossbeam (21). The horizontal compartment (40) is connected and fixed to the transverse moving mechanism (31).

2. The electrically adjustable leveling support device according to claim 1, characterized in that: The support beam also includes longitudinal beams (22) arranged symmetrically on both sides of the seat frame (10). The moving mechanism also includes a longitudinal movement mechanism (32) that moves back and forth along the longitudinal beams (22). The two ends of the crossbeam (21) are fixedly connected to the two longitudinal movement mechanisms (32) respectively, and are mounted on the longitudinal beams (22) on both sides through the longitudinal movement mechanisms (32). The tilt sensor (50) is a dual-axis tilt sensor.

3. The electrically adjustable leveling support device according to claim 2, characterized in that: Both the crossbeam (21) and the longitudinal beam (22) are provided with transmission racks (33), and the curvature of the transmission racks (33) corresponds to that of the support beams; the moving mechanism includes a transmission gear (34) meshing with the transmission racks (33), and the transmission gear (34) is fixedly installed on the output shaft of the geared motor (35). The reciprocating motion of the moving mechanism is realized through the meshing transmission of the gear and rack.

4. The electrically adjustable leveling support device according to claim 2, characterized in that: Guide rails (36) are provided on both the crossbeam (21) and the longitudinal beam (22). The guide rollers (37) on the moving mechanism are connected to the guide rails (36) in a rolling manner to bear the weight of the moving mechanism and limit its direction of movement.

5. The electrically adjustable leveling support device according to claim 1, characterized in that: The horizontal chamber (40) is suspended below the transverse mechanism (31) by at least three suspension cables (41). The upper end of the suspension cables (41) is hinged to the bottom of the transverse mechanism (31), and the lower end is hinged to the top of the horizontal chamber (40).

6. The electrically adjustable leveling support device according to claim 1, characterized in that: The horizontal compartment (40) is rigidly supported above the transverse mechanism (31) by a bracket (42). The lower end of the bracket (42) is connected to the upper surface of the transverse mechanism (31), and the upper end is connected to the lower surface of the horizontal compartment (40).

7. The electrically adjustable leveling support device according to claim 4, characterized in that: Two beams (21) are arranged in parallel intervals. The transverse mechanism (31) is equipped with two sets of reduction motors (35) and transmission gears (34) respectively corresponding to the two beams (21). The two transmission gears (34) are respectively connected to the transmission racks (33) of the two beams (21). At the same time, two sets of guide rollers (37) are respectively connected to the guide rails (36) of the two beams (21).

8. The electrically adjustable leveling support device according to claim 2, characterized in that: The longitudinal beam (22) is elastically connected to the seat frame (10) through a shock absorber (60). The shock absorber (60) includes a hollow telescopic rod (61). The telescopic rod (61) is telescopically inserted into a sealed cylinder (62). The cylinder is pre-filled with oil medium. A throttling hole (63) communicating with the sealed cylinder (62) is opened at the bottom of the telescopic rod (61). A buffer spring (64) is sleeved on the outside of the telescopic rod (61). The upper end of the buffer spring (64) is connected to the telescopic rod (61), and the lower end abuts against the upper surface of the seat frame (10).

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