A beam transport vehicle control device based on motor drive

Abstract

The application discloses a beam transport vehicle control device based on motor driving and relates to the technical field of bridge transportation. The device comprises a beam transport vehicle body, a prefabricated bridge, a support structure arranged on the beam transport vehicle body and used for limiting the gravity center deviation of the prefabricated bridge, and an adjusting assembly arranged on the support structure and used for controlling the position of the support of the prefabricated bridge. The support structure comprises grooves arranged on both sides of the top of the beam transport vehicle body. The inner wall of each groove is provided with a sliding groove. An active table is slidably connected to the inside of the sliding groove. A double-shaft motor is installed at the bottom of the active table. A rotating support is installed on the top output shaft of the double-shaft motor. A fixing piece is fixed to the top of the rotating support. An active frame is hinged to the inner side of the fixing piece. The support plate can extrude the prefabricated bridge by control, thereby supporting both ends of the prefabricated bridge at the same time, and the stability of the beam transport vehicle body can be improved when the beam transport vehicle body goes uphill or downhill.

Description

Technical Field

[0001] This invention relates to the field of bridge transportation technology, specifically a control device for a beam transport vehicle based on electric motor drive. Background Technology

[0002] The beam transport vehicle is a supporting equipment for bridge erecting machine construction. It is a special vehicle that transports the reinforced concrete beam bridge deck prefabricated in the prefabrication plant or on the bridge site to the bridge erecting machine. It is divided into rail-mounted and tire-mounted types. Due to the heavy load, it is required to be low in height in order to reduce the overall height of the bridge erecting machine.

[0003] When constructing bridges, beam transport vehicles are needed to move precast reinforced concrete beams. When moving long precast beams, a driving vehicle and a driven vehicle are often used. Since the precast beams need to be placed on the frame of the beam transport vehicle, installing a support structure on top of them can easily obstruct the placement of the precast beams. Therefore, the beam transport vehicle only supports the bottom of the precast beams and lacks a structure to limit the ends of the precast beams. As a result, when the vehicle turns, the precast beams are prone to lateral displacement, leading to uneven stress between the two vehicles. At the same time, when the vehicle is going up or down slopes, if the slope is steep, the precast beams are prone to small displacements, posing a safety hazard. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a control device for a beam transport vehicle based on motor drive.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a control device for a beam transport vehicle based on electric motor drive, comprising a beam transport vehicle body and a precast bridge, and further comprising:

[0006] The supporting structure, which is mounted on the beam transport vehicle, is used to limit the center of gravity shift of the precast bridge;

[0007] An adjustment component, mounted on the support structure, is used to control the position of the precast bridge support;

[0008] The supporting structure includes a groove, which is located on both sides of the top of the beam transport vehicle. The inner wall of the groove has a sliding groove, and a movable platform is slidably connected inside the sliding groove. A dual-axis motor is installed at the bottom of the movable platform, and a rotating bracket is installed on the top output shaft of the dual-axis motor. A fixing member is fixed at the top of the rotating bracket, and a movable frame is hinged to the inner side of the fixing member. Two sets of first hydraulic cylinders are installed at the ends of the movable frame, and a support plate is installed at the ends of the first hydraulic cylinders. A second hydraulic cylinder is hinged to one side of the rotating bracket.

[0009] The adjustment assembly includes a long plate installed at the bottom of the groove cavity. A gear is installed on the bottom output shaft of the dual-axis motor. A slot is opened inside the body of the beam transport vehicle. A movable rod is sleeved inside the slot. The top end of the movable rod passes through the slot and is equipped with a support platform. The bottom end of the movable rod passes through the slot and is equipped with an extrusion member. A fixing ring is fixed on the outer surface of the movable rod. A return spring is sleeved on the outer surface of the movable rod. Several sets of limiting members are fixed at the bottom of the extrusion member. Several sets of slots are opened on the top of the movable platform.

[0010] As a preferred embodiment of the present invention, the beam transport vehicle body is divided into two groups, which are respectively an active vehicle and a passive vehicle, and the two ends of the precast bridge are respectively located on the two groups of beam transport vehicle bodies.

[0011] As a preferred embodiment of the present invention, the top of the support platform is made of steel plate with a rough surface, and the bottom surface of the precast bridge is in contact with the support platform by compression.

[0012] As a preferred embodiment of the present invention, one side of the long plate is toothed, and the gear meshes with the long plate.

[0013] As a preferred embodiment of the present invention, the top of the second hydraulic cylinder is simultaneously hinged to two sets of first hydraulic cylinders, and one side of the support plate is pressed into contact with the end of the precast bridge.

[0014] As a preferred embodiment of the present invention, the extrusion member is slidably connected to the beam transport vehicle body, and the limiting member is movably engaged with the slot.

[0015] As a preferred embodiment of the present invention, the rotating bracket is rotatably connected to the movable platform. The movable platform, the rotating bracket, the fixing component, and the movable frame are all made of high-strength materials. The height of the fixing component and the first hydraulic cylinder in the initial state is lower than the height of the support platform.

[0016] As a preferred embodiment of the present invention, there is a gap between the support platform and the beam transport vehicle body. When the precast bridge squeezes the support platform, the support platform is supported by the beam transport vehicle body, and the limiting component is engaged with the precast bridge.

[0017] As a preferred embodiment of the present invention, the reset spring is elastically supported between the slot and the fixing ring, and the moving speed between the two sets of beam transport vehicle bodies remains consistent.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] I. This invention utilizes a dual-axis motor to control gear rotation. Through the interaction between the gear and the long plate, as well as the movable platform and the slide, the movable platform can move left and right. Simultaneously, the operation of the second hydraulic cylinder controls the first hydraulic cylinder to rotate the movable frame upwards along the inner side of the fixed component. The dual-axis motor also controls the rotation of the rotating bracket, directing the first hydraulic cylinder toward the precast bridge. This allows the first hydraulic cylinder to control the support plate to press against the precast bridge, thus simultaneously supporting both ends of the bridge and improving its stability when the beam transport vehicle is moving uphill or downhill.

[0020] Second, since the initial height of the first hydraulic cylinder is lower than the height of the rotating bracket, and the rotating bracket is used to support the precast bridge, the setting of the first hydraulic cylinder does not affect the placement of the precast bridge. Moreover, from the perspective of the rear of the beam transport vehicle, the first hydraulic cylinder is horizontally positioned on the top of the beam transport vehicle, while the precast bridge is placed longitudinally. At the same time, the position of the first hydraulic cylinder can be adjusted, so the first hydraulic cylinder will not be obstructed by the precast bridge when rotating upward. Then, the first hydraulic cylinder can be rotated left and right and its position adjusted, which facilitates the control of the support plate supporting the end of the precast bridge and reduces the space occupied.

[0021] Third, this invention utilizes the gap between the support platform and the beam transport vehicle body. When the precast bridge is placed on top of the support platform, pressure will be applied to the support platform. At this time, the support platform will use the movable rod to drive the pressing component and the limiting component to limit the movable platform. Since the support strength is relatively poor due to the meshing of gears and long plates, the weight of the precast bridge itself is used to control the limiting component to limit the movable platform, making the support plate support the precast bridge more stable.

[0022] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from an examination of the following, or may be learned from the practice of the invention. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the transport structure of the two sets of beam transport vehicles for transporting precast beams according to the present invention;

[0025] Figure 3 This is a schematic diagram of the structure on the back of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;

[0027] Figure 5 This is a cross-sectional view of the rear side of the present invention;

[0028] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0029] Figure 7 This is a schematic diagram of the disassembly structure of the support structure of the present invention.

[0030] In the diagram: 1. Beam transport vehicle body; 2. Groove; 3. Slide; 4. Movable platform; 5. Dual-axis motor; 6. Rotating bracket; 7. Fixing component; 8. Movable frame; 9. First hydraulic cylinder; 10. Second hydraulic cylinder; 11. Support plate; 12. Long plate; 13. Gear; 14. Groove; 15. Movable rod; 16. Support platform; 17. Fixing ring; 18. Return spring; 19. Extrusion component; 20. Limiting component; 21. Slot; 22. Precast bridge. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figure 1-7 As shown, the present invention provides a motor-driven beam transporter control device, including a beam transporter body 1 and a precast bridge 22, and further comprising:

[0033] A support structure, which is installed on the beam transport vehicle body 1, is used to limit the center of gravity shift of the precast bridge 22;

[0034] An adjustment component, which is mounted on the support structure, is used to control the position of the support for the precast bridge 22;

[0035] The support structure includes a groove 2, which is located on both sides of the top of the beam transport vehicle body 1. The inner wall of the groove 2 is provided with a sliding groove 3. A movable platform 4 is slidably connected inside the sliding groove 3. A dual-axis motor 5 is installed at the bottom of the movable platform 4. A rotating bracket 6 is installed on the top output shaft of the dual-axis motor 5. A fixing part 7 is fixed at the top of the rotating bracket 6. A movable frame 8 is hinged to the inner side of the fixing part 7. Two sets of first hydraulic cylinders 9 are installed at the end of the movable frame 8. A support plate 11 is installed at the end of the first hydraulic cylinder 9. A second hydraulic cylinder 10 is hinged to one side of the rotating bracket 6.

[0036] The adjustment assembly includes a long plate 12, which is installed at the bottom of the inner cavity of the groove 2. A gear 13 is installed on the bottom output shaft of the dual-axis motor 5. A slot 14 is opened inside the body of the beam transport vehicle 1. A movable rod 15 is sleeved inside the slot 14. The top end of the movable rod 15 passes through the slot 14 and is installed on a support platform 16. The bottom end of the movable rod 15 passes through the slot 14 and is installed on a pressing component 19. A fixing ring 17 is fixed on the outer surface of the movable rod 15. A return spring 18 is sleeved on the outer surface of the movable rod 15. Several sets of limiting components 20 are fixed at the bottom of the pressing component 19. Several sets of slots 21 are opened on the top of the movable platform 4.

[0037] The operation of the dual-axis motor 5 controls the rotation of the gear 13. At this time, through the cooperation between the gear 13 and the long plate 12, as well as the movable table 4 and the slide 3, the movable table 4 can be controlled to move left and right. At the same time, through the operation of the second hydraulic cylinder 10, the first hydraulic cylinder 9 can be controlled to drive the movable frame 8 to rotate upward along the inner side of the fixed part 7. At this time, the rotation of the rotating bracket 6 controlled by the dual-axis motor 5 can control the position of the first hydraulic cylinder 9 toward the precast bridge 22. Thus, through the operation of the first hydraulic cylinder 9, it can control the support plate 11 to squeeze the precast bridge 22, thereby supporting both ends of the precast bridge 22 at the same time, improving its stability when the beam transport vehicle body 1 is going uphill or downhill.

[0038] like Figure 2 As shown, the beam transport vehicle body 1 is divided into two groups, which are the active vehicle and the passive vehicle, respectively. The two ends of the precast bridge 22 are located on the two groups of beam transport vehicle bodies 1.

[0039] When the precast bridge 22 is supported at both ends by the beam transport vehicle body 1, the length of the precast bridge 22 located directly above each beam transport vehicle body 1 will inevitably have certain differences. Therefore, the gear 13 can be rotated by the dual-shaft motor 5, so that the movable platform 4 can slide along the inside of the slide groove 3 through the cooperation between the gear 13 and the long plate 12. This can adjust the position of the first hydraulic cylinder 9 supporting the precast bridge 22, so that the angle of the two sets of first hydraulic cylinders 9 supporting the precast bridge 22 is consistent, which improves its stability. Furthermore, the synchronous support of both ends of the precast bridge 22 can reduce the risk of lateral displacement when turning.

[0040] like Figure 2 , 3 As shown, the top of the support platform 16 is made of steel plate with a rough surface, and the bottom surface of the prefabricated bridge 22 is in contact with the support platform 16 by compression.

[0041] The design of the support platform 16 is such that it comes into direct contact with the precast bridge 22. Therefore, it requires a material that is not easily deformed. The steel itself has a large frictional force, making its surface rougher, which can further increase the frictional force between it and the precast bridge 22, making the precast bridge 22 less prone to displacement.

[0042] like Figure 4 As shown, one side of the long plate 12 is toothed, and the gear 13 meshes with the long plate 12.

[0043] Through the cooperation between the long plate 12 and the gear 13, the long plate 12 will roll along the tooth groove of the gear 13 when it rotates. At the same time, through the cooperation between the movable table 4 and the slide 3, the movable table 4 will slide along the inner side of the slide 3 when the long plate 12 rotates, which makes it easier to control the position of the first hydraulic cylinder 9.

[0044] like Figure 7 As shown, the top of the second hydraulic cylinder 10 is simultaneously hinged to two sets of first hydraulic cylinders 9, and one side of the support plate 11 is pressed into contact with the end of the precast bridge 22.

[0045] By cooperating with the first hydraulic cylinder 9, the angle at which the first hydraulic cylinder 9 is raised can be controlled, thereby controlling the support plate 11 to move so that it can support the end of the precast bridge 22.

[0046] like Figure 6 As shown, the extrusion member 19 is slidably connected to the beam transport vehicle body 1, and the limiting member 20 is movably engaged with the slot 21.

[0047] The cooperation between the limiting component 20 and the slot 21 can limit the position of the movable platform 4, thereby restricting the position of the rotating bracket 6 and the movable frame 8, so that the support plate 11 can stably support the precast bridge 22.

[0048] like Figure 7 As shown, the rotating bracket 6 is rotatably connected to the movable platform 4. The movable platform 4, the rotating bracket 6, the fixing part 7 and the movable frame 8 are all made of high-strength materials. The height of the fixing part 7 and the first hydraulic cylinder 9 in the initial state is lower than the height of the support platform 16.

[0049] Because the initial height of the first hydraulic cylinder 9 is lower than that of the rotating bracket 6, which is used to support the precast bridge 22, the placement of the first hydraulic cylinder 9 does not affect the placement of the precast bridge 22. From the perspective of the rear of the beam transport vehicle 1, the first hydraulic cylinder 9 is horizontally positioned on the top of the beam transport vehicle 1, while the precast bridge 22 is placed longitudinally. At the same time, the position of the first hydraulic cylinder 9 can be adjusted. Therefore, the first hydraulic cylinder 9 will not be blocked by the precast bridge 22 when rotating upward. Then, the first hydraulic cylinder 9 can be rotated left and right and its position adjusted to facilitate the control of the support plate 11 to support the end of the precast bridge 22 without hindering the placement of the precast bridge 22.

[0050] like Figure 2 , 6 As shown, there is a gap between the support platform 16 and the beam transport vehicle body 1. When the precast bridge 22 squeezes the support platform 16, the support platform 16 is supported by the beam transport vehicle body 1, and the limiting member 20 is engaged with the precast bridge 22.

[0051] When the precast bridge 22 is placed on top of the support platform 16 through the gap between the support platform 16 and the beam transport vehicle body 1, pressure will be applied to the support platform 16. At this time, the support platform 16 will drive the pressing component 19 and the limiting component 20 to limit the movable platform 4 through the movable rod 15. Since the support force is poor due to the meshing of the gear 13 and the long plate 12, the weight of the precast bridge 22 itself is used to control the limiting component 20 to limit the movable platform 4, which can achieve a stable positioning effect.

[0052] like Figure 2 , 6 As shown, the reset spring 18 is elastically supported between the slot 14 and the fixing ring 17, and the moving speed between the two sets of beam transport vehicle bodies 1 is consistent.

[0053] The design of the return spring 18 enables the fixed ring 17 to have good elastic return performance. Since the return spring 18 is in a compressed state, it will apply an elastic force to the fixed ring 17. As a result, when the precast bridge 22 separates from the support platform 16, it will drive the limiting member 20 to separate from the slot 21, thereby releasing the limit on the movable platform 4.

[0054] Working principle:

[0055] First, when feeding the precast bridge 22, it is suspended above the support platform 16 without direct contact. Then, the dual-axis motor 5 is started to control the gear 13 to rotate. At this time, through the cooperation between the gear 13 and the long plate 12, and the cooperation between the movable platform 4 and the slide 3, the movable platform 4 will be controlled to slide along the inside of the slide 3, thereby controlling the first hydraulic cylinder 9 to move to a position away from the end of the precast bridge 22. Then, through the operation of the second hydraulic cylinder 10, the cooperation between the second hydraulic cylinder 10 and the first hydraulic cylinder 9, as well as the movable frame 8 and the fixed part 7, will control the first hydraulic cylinder 9 to lift upward. At this time, the dual-axis motor 5 can control the rotation of the first hydraulic cylinder 9. The rotating bracket 6 rotates so that the support plate 11 faces the end of the precast bridge 22. At this time, it can be determined that the first hydraulic cylinder 9 can control the support plate 11 to squeeze the precast bridge 22. If it cannot, the gear 13 is controlled to rotate again to adjust the position of the first hydraulic cylinder 9. Then the precast bridge 22 is slowly placed. When the precast bridge 22 squeezes the support platform 16, the moving rod 15 will drive the squeezing member 19 to move downward, so that the control limit member 20 is engaged with the slot 21. At this time, the moving platform 4 will be in a fixed state. Finally, the first hydraulic cylinder 9 controls the support plate 11 to move obliquely upward, so that it supports the end of the precast bridge 22 and improves its stability.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A control device for a beam transport vehicle based on electric motor drive, comprising a beam transport vehicle body (1) and a precast bridge (22), characterized in that, Also includes: The supporting structure, which is set on the beam transport vehicle body (1), is used to limit the center of gravity shift of the precast bridge (22); An adjustment component, which is mounted on the support structure, is used to control the position of the support for the precast bridge (22); The supporting structure includes a groove (2), which is located on both sides of the top of the beam transport vehicle body (1). The inner wall of the groove (2) is provided with a sliding groove (3). A movable platform (4) is slidably connected inside the sliding groove (3). A dual-axis motor (5) is installed at the bottom of the movable platform (4). A rotating bracket (6) is installed on the top output shaft of the dual-axis motor (5). A fixing part (7) is fixed on the top of the rotating bracket (6). A movable frame (8) is hinged to the inner side of the fixing part (7). Two sets of first hydraulic cylinders (9) are installed at the end of the movable frame (8). A support plate (11) is installed at the end of the first hydraulic cylinder (9). A second hydraulic cylinder (10) is hinged to one side of the rotating bracket (6). The adjustment component includes a long plate (12), which is installed at the bottom of the inner cavity of the groove (2). The bottom output shaft of the dual-axis motor (5) is equipped with a gear (13). The body of the beam transport vehicle (1) has a slot (14) inside. A movable rod (15) is sleeved inside the slot (14). The top of the movable rod (15) passes through the slot (14) and is equipped with a support platform (16). The bottom of the movable rod (15) passes through the slot (14) and is equipped with an extrusion piece (19). A fixing ring (17) is fixed on the outer surface of the movable rod (15). A reset spring (18) is sleeved on the outer surface of the movable rod (15). Several sets of limiting pieces (20) are fixed at the bottom of the extrusion piece (19). Several sets of slots (21) are opened on the top of the movable platform (4). The top of the second hydraulic cylinder (10) is simultaneously hinged to two sets of first hydraulic cylinders (9), and one side of the support plate (11) is pressed into contact with the end of the precast bridge (22). The dual-axis motor (5) controls the gear (13) to rotate. At this time, through the cooperation between the gear (13) and the long plate (12), and the cooperation between the movable table (4) and the slide (3), the movable table (4) will be controlled to slide along the inside of the slide (3), thereby controlling the first hydraulic cylinder (9) to move to a position away from the end of the precast bridge (22). Then, through the operation of the second hydraulic cylinder (10), through the cooperation between the second hydraulic cylinder (10) and the first hydraulic cylinder (9), and the movable frame (8) and the fixed part (7), the first hydraulic cylinder (9) will be controlled to lift up. At this time, the dual-axis motor (5) can control the rotating bracket (6) to rotate, so that the support plate (11) faces the end of the precast bridge (22).

2. The beam transport vehicle control device based on motor drive according to claim 1, characterized in that: The beam transport vehicle body (1) is divided into two groups, and the two groups of beam transport vehicle bodies (1) are respectively the active vehicle and the passive vehicle. The two ends of the precast bridge (22) are located on the two groups of beam transport vehicle bodies (1).

3. The beam transport vehicle control device based on motor drive according to claim 1, characterized in that: The top of the support platform (16) is made of steel plate with a rough surface, and the bottom surface of the prefabricated bridge (22) is in contact with the support platform (16).

4. The beam transport vehicle control device based on motor drive according to claim 1, characterized in that: One side of the long plate (12) is toothed, and the gear (13) meshes with the long plate (12).

5. The beam transport vehicle control device based on motor drive according to claim 1, characterized in that: The extrusion member (19) is slidably connected to the beam transport vehicle body (1), and the limiting member (20) is movably engaged with the slot (21).

6. The beam transport vehicle control device based on motor drive according to claim 1, characterized in that: The rotating bracket (6) is rotatably connected to the movable platform (4). The movable platform (4), the rotating bracket (6), the fixing part (7) and the movable frame (8) are all made of high-strength materials. The height of the fixing part (7) and the first hydraulic cylinder (9) in the initial state is lower than the height of the support platform (16).

7. The beam transport vehicle control device based on motor drive according to claim 3, characterized in that: There is a gap between the support platform (16) and the beam transport vehicle body (1). When the precast bridge (22) squeezes the support platform (16), the support platform (16) is supported by the beam transport vehicle body (1), and the limiting member (20) is engaged with the precast bridge (22).

8. The beam transport vehicle control device based on motor drive according to claim 2, characterized in that: The reset spring (18) is elastically supported between the slot (14) and the fixing ring (17), and the moving speed between the two sets of beam transport vehicle bodies (1) remains consistent.

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