Platform rotating mechanism for lifting vehicle

Abstract

A platform rotating mechanism for a lifting vehicle comprises a chassis capable of moving on the ground, and a lifting part, a lifting platform, a sliding part, an overturning part and a rotating part which are mounted on the chassis, the lifting part can drive the lifting platform to ascend and descend, and the top of the lifting platform is correspondingly connected with the overturning part through the sliding part. The overturning part comprises a first sliding rail, a hinge rod, a first sliding seat, an overturning platform, a hinge seat and a first driving mechanism, the first sliding rail is installed on the top face of the sliding part, the first sliding seat is arranged on the first sliding rail, the head end of the hinge rod is correspondingly hinged to the first sliding seat, and the tail end of the hinge rod is correspondingly hinged to the middle of the bottom face of the overturning platform; the hinge seat is fixedly mounted on the top surface of the sliding part, and the hinge seat is correspondingly hinged to the bottom of the tail end of the overturning platform; a rotating part capable of driving the mounting plate to rotate on the plane where the mounting plate is located is arranged at the top of the overturning platform; according to the mechanism, the lifting vehicle can stably receive satellite signals.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering vehicles, in particular to a platform rotating mechanism for a lifting vehicle. Background Art

[0002] As is known, the relative position between a certain point on the ground and a satellite is constantly changing. Therefore, when a satellite signal receiver on the ground is in use, it is necessary to adjust the orientation of its receiving end to ensure that the satellite signal can be received smoothly. Generally, a lifting vehicle is used to assist in adjusting the lifting height and rotation angle of the satellite signal receiver;

[0003] For traditional lifting vehicles, the satellite signal receiver is directly inclined on the top platform of the lifting vehicle, and the lifting vehicle can lift and rotate the satellite signal receiver so that the satellite signal receiver can receive satellite signals in space. Since the inclination angle of the satellite signal receiver is fixed, this lifting vehicle can only receive satellite signals within a certain angle range. However, both the space satellite and the earth itself are in relative motion. Therefore, at certain moments, there may be no satellite within this angle range, resulting in the lifting vehicle being unable to receive satellite signals and affecting signal reception;

[0004] A new type of satellite side plate satellite mounting vehicle disclosed in Chinese Patent (CN105600710A) uses a folding rocker arm structure to achieve a high lifting stroke and a low folding height, enabling the vehicle to have a high lifting stroke at a low initial height and meeting the universality within all current height ranges; 3 groups of electric push rods are used to achieve the stability during the lifting process and the use process after lifting of the mechanical structure, and the triangular force transmission frame can withstand a large centroid offset without affecting the lifting and flipping of the machine. However, after the rocker arm structure is unfolded, the acute angle in the formed triangle is small, and the positions for receiving satellite signals are generally in areas with higher terrain, where there is a certain intensity of strong wind in the environment. Thus, the stability of the rocker arm structure is poor, affecting the signal reception effect;

[0005] Therefore, in summary, there is a need in the current market for a mechanism that enables a lifting vehicle to stably receive satellite signals. Summary of the Utility Model

[0006] In order to overcome the deficiencies in the background art, the utility model discloses a platform rotating mechanism for a lifting vehicle.

[0007] To achieve the above invention purpose, the utility model adopts the following technical solutions:

[0008] A platform rotating mechanism for a lifting vehicle, comprising a chassis capable of moving on the ground, and a lifting part, a lifting platform, a sliding part, a flipping part and a rotating part installed on the chassis; the lifting part can drive the lifting platform to perform lifting actions, and the top of the lifting platform is correspondingly connected to the flipping part through the sliding part, and the sliding part can move along the length direction of the lifting platform;

[0009] The flipping part comprises a first slide rail, a hinge rod, a first slide seat, a flipping platform, a hinge seat and a first driving mechanism. Among them, the first slide rail is installed on the top surface of the sliding part along the length direction, a first slide seat is arranged on the first slide rail, the head end of the hinge rod is correspondingly hinged to the first slide seat, and the tail end of the hinge rod is correspondingly hinged to the middle of the bottom surface of the flipping platform; the hinge seat is fixedly installed on the top surface of the sliding part, and the hinge seat is correspondingly hinged to the bottom of the tail end of the flipping platform; the first driving mechanism can drive the first slide seat to move correspondingly close to or away from the hinge seat;

[0010] A rotating part capable of driving the mounting plate to rotate in its plane is arranged on the top of the flipping platform, and the plate surface of the mounting plate is used for mounting a satellite signal receiver.

[0011] Further, the hinge rods are provided as two symmetrical ones.

[0012] Further, the flipping platform is provided with a second slide rail, a driving block, a driving screw rod and a driving motor. A second slide seat is arranged on the second slide rail, a rotating part is arranged on the second slide seat, a driving block is arranged at the bottom of the second slide seat, a threaded hole corresponding to the driving screw rod is arranged in the middle of the driving block, and the driving screw rod is correspondingly connected to the output end of the driving motor.

[0013] Further, two anti-collision blocks are arranged on the flipping platform, and the two anti-collision blocks respectively correspond to the two ends of the second slide rail.

[0014] Further, a third slide rail perpendicular to the second slide rail is arranged on the top surface of the second slide seat. A slider is arranged on each of the two tracks of the third slide rail, and a rotating part is arranged on the slider. A mounting seat is arranged on the head end surface of the second slide seat, and a manual screw rod and a guide rod parallel to each other are arranged in the mounting seat. One end of the manual screw rod extends out of the mounting seat and is provided with a hand wheel. A driving slider is arranged on the rod bodies of the manual screw rod and the guide rod. A threaded hole corresponding to the manual screw rod is arranged on the driving slider, and the top of the driving slider is correspondingly connected to the rotating part through a connecting plate.

[0015] Further, the guide rods are provided as two, and the guide rods and the manual screw rod are located on the same horizontal plane.

[0016] Furthermore, the rotating part includes a rotary disk, a driving shaft, a gearbox and a rotary driving handwheel. The rotary disk is arranged on the tipping platform, and the top of the rotary disk is fixedly connected to the mounting plate correspondingly. A driving shaft is vertically arranged at the center of the rotary disk. A gear on the shaft body of the driving shaft meshes with the output end of the gearbox correspondingly, and the input end of the gearbox is connected to the rotary driving handwheel correspondingly.

[0017] Furthermore, the rotary disk and the tipping platform are connected by an inclination mechanism. The inclination mechanism includes a frame body and a hand-operated elevator. The frame body is installed on the bottom surface of the rotary disk. The frame body is hinged to the output shaft of the hand-operated elevator correspondingly. A swinging part is arranged on each side of the frame body;

[0018] The swinging part is composed of a channel steel, a connecting shaft and a universal ball shaft. One end of the channel steel is fixedly connected to the frame body. The inner side wall of the channel steel is connected to the head end of the universal ball shaft through the connecting shaft correspondingly. The tail end of the universal ball shaft is fixedly connected to the tipping platform correspondingly.

[0019] Due to the adoption of the technical scheme as described above, the utility model has the following beneficial effects:

[0020] A rotary mechanism for a lifting vehicle platform disclosed by the utility model enables a satellite signal receiver to have a multi-degree-of-freedom rotation angle through a tipping part and a rotating part. Thus, when the lifting vehicle is in a stationary state, the satellite signal receiver can still chase and receive satellite signals, ensuring the continuity and stability of signal reception. Description of the Drawings

[0021] Figure 1 is a structural schematic diagram of the utility model;

[0022] Figure 2 is Figure 1 an enlarged schematic diagram of the structure of part A;

[0023] Figure 3 is a structural schematic diagram of the connection between the third slide rail and the slider.

[0024] In the figure: 1, chassis; 2, lifting part; 3, lifting platform; 4, sliding part; 5, flipping part; 51, first slide rail; 52, hinge rod; 53, first slide block; 54, flipping platform; 55, hinge seat; 56, first driving mechanism; 6, rotating part; 61, slewing disc; 62, driving shaft; 63, gear box; 64, rotating driving handwheel; 7, mounting plate; 8, second slide rail; 9, second slide block; 10, driving block; 11, driving screw; 12, driving motor; 13, anti-collision block; 14, third slide rail; 15, slider; 16, mounting seat; 17, manual screw; 18, guide rod; 19, active slider; 20, inclination mechanism; 201, frame; 202, hand-operated elevator; 203, swinging component; 2031, channel steel; 2032, connecting shaft; 2033, universal ball shaft. Detailed implementation mode

[0025] The following will combine the drawings in the embodiments of the present invention to illustrate the technical solutions of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or position relationship, it is only corresponding to the drawings of the present invention. For the convenience of describing the present invention, it does not indicate or imply that the device or element referred to must have a specific orientation: Embodiment 1

[0026] Combined with the attached Figures 1-3 The described rotary mechanism for a lifting vehicle platform includes a chassis 1 that can move on the ground, and a lifting part 2, a sliding part 4, a flipping part 5, and a rotating part 6 installed on the chassis 1; the lifting part 2 can drive the lifting platform 3 to perform lifting actions, and the top of the lifting platform 3 is correspondingly connected to the flipping part 5 through the sliding part 4, wherein the sliding part 4 can move along the length direction of the lifting platform 3.

[0027] The flipping part 5 includes a first slide rail 51, a hinge rod 52, a first sliding seat 53, a flipping platform 54, a hinge seat 55 and a first driving mechanism 56. Among them, the first slide rail 51 is installed on the top surface of the sliding part 4 along the length direction. A first sliding seat 53 is arranged on the first slide rail 51. The head end of the hinge rod 52 is correspondingly hinged with the first sliding seat 53, and the tail end of the hinge rod 52 is correspondingly hinged with the middle part of the bottom surface of the flipping platform 54. The hinge seat 55 is fixedly installed on the top surface of the sliding part 4, and the hinge seat 55 is correspondingly hinged with the bottom end of the tail end of the flipping platform 54. The first driving mechanism 56 can drive the first sliding seat 53 to move correspondingly close to or away from the hinge seat 55. The flipping center point of the flipping platform 54 is the hinge point of the hinge seat 55. When the first driving mechanism 56 drives the first sliding seat 53 to approach the hinge seat 55, the hinge rod 52 will be lifted under the drive of the first sliding seat 53, and thus push the flipping platform 54 to flip upward from the flat state. Limited by the hinge seat 55, the flipping angle of the flipping platform 54 is 0-90°. In particular, the hinge rod 52 is provided as two symmetrical ones, and the two hinge rods 52 can provide better supporting ability for the flipping platform 54, thereby improving the stability of the flipping platform 54 during the flipping process.

[0028] A rotating part 6 capable of driving the mounting plate 7 to rotate on its surface is arranged on the top of the flipping part 5. The plate surface of the mounting plate 7 is used to mount the satellite signal receiver. It should be noted that the sliding part 4, the flipping part 5 and the rotating part 6 can enable the satellite signal receiver to complete multi-degree-of-freedom adjustment when the position of the lifting vehicle stops, and then smoothly achieve the purpose of continuously receiving satellite signals, thereby improving the terrain adaptability of the lifting vehicle. And when the lifting vehicle is in a stationary state, the satellite signal receiver can still chase and receive satellite signals, ensuring the continuity of signal reception and the stability of signal reception. Embodiment 2

[0029] Based on Embodiment 1, the inventors of the present application are provided with a second slide rail 8, a driving block 10, a driving screw 11 and a driving motor 12 on the flipping platform 54. A second sliding seat 9 is arranged on the second slide rail 8. The rotating part 6 is arranged on the second sliding seat 9. A driving block 10 is arranged at the bottom of the second sliding seat 9. A threaded hole corresponding to the driving screw 11 is arranged in the middle of the driving block 10. The driving screw 11 is correspondingly connected to the output end of the driving motor 12. This part of the structure can drive the rotating part 6 and the satellite signal receiver to move along the second slide rail 8, realizing the adjustment of another position direction of the signal receiver. And it should be noted that when the driving motor 12 drives the driving screw 11 to rotate, since the driving block 10 is fixedly installed on the second sliding seat 9, the driving block 10 itself will not rotate, but will move along the axial direction of the screw under the drive of the driving screw 11.

[0030] In addition, the flipping platform 54 is provided with two anti-collision blocks 13, which are respectively located at both ends of the second slide rail 8. The anti-collision blocks 13 can limit the maximum sliding distance of the second slide seat 9, prevent the second slide seat 9 from derailing, and improve safety. Embodiment 3

[0031] On the basis of Embodiment 2, the inventor of the present application provides a third slide rail 14 perpendicular to the second slide rail 8 on the top surface of the second slide seat 9. Each of the two tracks of the third slide rail 14 is provided with a slider 15, and the rotating part 6 is mounted on the two sliders 15. An installation seat 16 is provided on the head end surface of the second slide seat 9. A manual screw rod 17 and a guide rod 18 are provided in the installation seat 16 in parallel. One end of the manual screw rod 17 extends out of the installation seat 16 and is provided with a hand wheel. The rod bodies of the manual screw rod 17 and the guide rod 18 are provided with a driving slider 1915, and the driving slider 1915 is provided with a screw hole corresponding to and cooperating with the manual screw rod 17. The top of the driving slider 1915 is connected to the rotating part 6 through a connecting plate. The guide rod 18 and the manual screw rod 17 together limit the rotation of the driving slider 1915, so that when the manual screw rod 17 rotates, the driving slider 1915 can only perform corresponding linear motion. In addition, this structure mainly makes fine adjustment to the position of the satellite receiver; specifically, the guide rod 18 is provided with two, and the guide rod 18 and the manual screw rod 17 are located on the same horizontal plane, which has a better guiding effect on the driving slider 1915 and facilitates the movement of the driving slider 1915. Embodiment 4

[0032] On the basis of Embodiment 1, the inventor of the present application designs a structure for the rotating part 6 including a rotary disk 61, a driving shaft 62, a gear box 63 and a rotary driving hand wheel 64. The rotary disk 61 is arranged on the flipping platform 54, and the top of the rotary disk 61 is fixedly connected to the mounting plate 7 correspondingly. A driving shaft 62 is vertically arranged at the center of the rotary disk 61. The shaft body of the driving shaft 62 is meshed with a gear corresponding to the output end of the gear box 63. The input end of the gear box 63 is correspondingly connected to the rotary driving hand wheel 64. By rotating the rotary driving hand wheel 64, the gear box 63 and the rotary disk 61 can be manually driven, so that the mounting plate 7 and the satellite signal receiver mounted thereon rotate together, and the rotation angle is 0-80°. Embodiment 5

[0033] On the basis of Embodiment 4, the inventor of the present application provides an inclination mechanism 20 between the rotary disk 61 and the flipping platform 54. The inclination mechanism 20 includes a frame body 201 and a hand-operated elevator 202. The frame body 201 is mounted on the bottom surface of the rotary disk 61. The frame body 201 is correspondingly hinged to the output shaft of the hand-operated elevator 202. A swinging member 203 is provided on each side of the frame body 201;

[0034] The swing member 203 is composed of a channel steel 2031, a connecting shaft 2032 and a universal ball shaft 2033. One end of the channel steel 2031 is fixedly connected to the frame body 201. The inner side wall of the channel steel 2031 is correspondingly connected to the head end of the universal ball shaft 2033 through the connecting shaft 2032. The tail end of the universal ball shaft 2033 is fixedly connected to the flipping platform 54 correspondingly. By clockwise rotating the input end of the hand-operated elevator 202, the output shaft of the hand-operated elevator 202 can drive the frame body 201 to rise. The universal ball shaft 2033 in the swing member 203 serves as a support member, which can not only provide support for the frame body 201 but also rotate by a certain angle therewith, realizing the rotation of the frame body 201 with its own plane as the reference plane, further improving the movement freedom of the satellite signal receiver. It should be noted that the rotation angle of the frame body 201 is -5 to 5°. When the second slide rail 8 and the third slide rail 14 are provided on the reverse platform, the tail end of the universal ball shaft 2033 is installed on the slider 15 of the third slide rail 14 at this time.

[0035] When specifically implementing the lifting vehicle platform rotating mechanism of the present invention, when it is necessary to receive satellite signals, first start the lifting part 2 to lift the lifting platform 3 to an appropriate height, and then start the sliding part 4 and the flipping part 5, so that the satellite signal receiver can move and flip to a roughly appropriate position according to the satellite position, and then the satellite signal can be received.

[0036] It should be noted that through the coordinated actions of the driving motor 12, the manual screw 17 and the inclination mechanism 20, the position of the satellite signal receiver can be finely adjusted, so that the signal received by the satellite signal receiver is more accurate and clear.

[0037] The parts not detailed in the present invention are the prior art. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A platform rotating mechanism for a lifting vehicle, characterized in that: It includes a chassis (1) capable of moving on the ground, and a lifting part (2), a lifting platform (3), a sliding part (4), a flipping part (5) and a rotating part (6) mounted on the chassis (1); the lifting part (2) can drive the lifting platform (3) to perform a lifting action, the top of the lifting platform (3) is correspondingly connected to the flipping part (5) through the sliding part (4), and the sliding part (4) can move along the length direction of the lifting platform (3). The flipping part (5) includes a first slide rail (51), a hinge rod (52), a first slide block (53), a flipping platform (54), a hinge seat (55) and a first driving mechanism (56). Among them, the first slide rail (51) is installed on the top surface of the sliding part (4) along the length direction, a first slide block (53) is provided on the first slide rail (51), the head end of the hinge rod (52) is correspondingly hinged to the first slide block (53), and the tail end of the hinge rod (52) is correspondingly hinged to the middle of the bottom surface of the flipping platform (54); the hinge seat (55) is fixedly installed on the top surface of the sliding part (4), and the hinge seat (55) is correspondingly hinged to the bottom of the tail end of the flipping platform (54); the first driving mechanism (56) can drive the first slide block (53) to move correspondingly close to or away from the hinge seat (55). On the top of the flipping platform (54), there is a rotating part (6) capable of driving the mounting plate (7) to rotate in its plane, and the plate surface of the mounting plate (7) is used for mounting a satellite signal receiver.

2. The platform rotation mechanism for a lifting vehicle according to claim 1, characterized in that: The hinge rods (52) are provided in two symmetrical ones.

3. The platform rotating mechanism for a lifting vehicle according to claim 1, wherein: The flipping platform (54) is provided with a second slide rail (8), a driving block (10), a driving screw rod (11) and a driving motor (12). A second slide block (9) is provided on the second slide rail (8), a rotating part (6) is provided on the second slide block (9), a driving block (10) is provided at the bottom of the second slide block (9), a threaded hole corresponding to the driving screw rod (11) is provided in the middle of the driving block (10), and the driving screw rod (11) is correspondingly connected to the output end of the driving motor (12).

4. The platform rotating mechanism for a lifting vehicle according to claim 3, characterized in that: Two anti-collision blocks (13) are provided on the flipping platform (54), and the two anti-collision blocks (13) are respectively located at both ends of the second slide rail (8).

5. The platform rotation mechanism for a lifting vehicle according to claim 3, characterized in that: On the top surface of the second slide block (9), there is a third slide rail (14) perpendicular to the second slide rail (8). One slider (15) is provided on each of the two tracks of the third slide rail (14), and a rotating part (6) is provided on the slider (15). On the head end surface of the second slide block (9), there is a mounting seat (16). A manual screw rod (17) and a guide rod (18) parallel to each other are provided in the mounting seat (16). One end of the manual screw rod (17) extends out of the mounting seat (16) and is provided with a handwheel. The rod bodies of the manual screw rod (17) and the guide rod (18) are provided with an active slider (19) (15). The active slider (19) (15) is provided with a threaded hole corresponding to the manual screw rod (17), and the top of the active slider (19) (15) is correspondingly connected to the rotating part (6) through a connecting plate.

6. The platform rotating mechanism for a lifting vehicle according to claim 5, characterized in that: The guide rods (18) are provided in two, and the guide rods (18) and the manual screw rod (17) are in the same horizontal plane.

7. The platform rotating mechanism for a lifting vehicle according to claim 1, characterized in that: The rotating part (6) includes a rotating disc (61), a driving shaft (62), a gearbox (63) and a rotary driving handwheel (64). The rotating disc (61) is arranged on the tipping platform (54), and the top of the rotating disc (61) is fixedly connected to the mounting plate (7) correspondingly. A driving shaft (62) is vertically arranged at the center of the rotating disc (61). The shaft body of the driving shaft (62) is engaged with a gear corresponding to the output end of the gearbox (63). The input end of the gearbox (63) is connected to the rotary driving handwheel (64) correspondingly.

8. The platform rotating mechanism for a lifting vehicle according to claim 7, characterized in that: The rotating disc (61) is connected to the tipping platform (54) through an inclination mechanism (20). The inclination mechanism (20) includes a frame body (201) and a hand-operated elevator (202). The frame body (201) is installed on the bottom surface of the rotating disc (61). The frame body (201) is hinged to the output shaft of the hand-operated elevator (202) correspondingly. A swinging member (203) is arranged on each side of the frame body (201); The swinging member (203) is composed of a channel steel (2031), a connecting shaft (2032) and a universal ball shaft (2033). One end of the channel steel (2031) is fixedly connected to the frame body (201). The inner side wall of the channel steel (2031) is connected to the head end of the universal ball shaft (2033) through the connecting shaft (2032) correspondingly. The tail end of the universal ball shaft (2033) is fixedly connected to the tipping platform (54) correspondingly.

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