A material transportation device for bridge construction

Abstract

The present invention belongs to the technical field of transportation devices, and specifically relates to a material transportation device for bridge construction, including a mobile frame and a track mechanism; the track mechanism includes a support cover and a connecting rod, and the support covers are provided with two, and the two support covers are fixedly connected by the connecting rod; the support cover is provided with a lifting support wheel assembly and a support track; the lifting support wheel assembly includes a connecting seat and a lifting cylinder, the connecting seat is slidably connected to the support cover, and the two ends of the lifting cylinder are respectively fixedly connected to the connecting seat and the support cover; the connecting seat is provided with a first drive track wheel; the lower end of the mobile frame is provided with a second drive track wheel connected to the support track; the movement of the track mechanism along the crash barrier can be achieved by lifting the support wheels. The movable structural setting of the track mechanism can save time in arranging the track.

Description

Technical Field

[0001] The present invention belongs to the technical field of transportation devices, and in particular relates to a material transportation device for bridge construction. Background Art

[0002] Wet joints are primarily used to connect precast components. They are created by pouring concrete on the joint surfaces of the precast components, forming a single structure. Wet joint construction involves roughening the old concrete surface, installing formwork, arranging rebar, and pouring and vibrating the concrete to compact it.

[0003] During the concrete pouring process, since the bridge deck paving concrete does not meet the design requirements, tank trucks and other construction vehicles are prohibited from entering the bridge during the pouring process or when the strength does not meet the design requirements.

[0004] To this end, the invention patent application with patent application number 202211101578.7 discloses a self-propelled bridge deck paving concrete laying device and its casting method, which realizes longitudinal sliding laying by walking on the crash barrier through a portal truss, and an electric trolley is arranged on the main crossbeam of the truss, and the electric trolley drives the hopper to move to realize horizontal laying.

[0005] During the mobile transportation process, it is necessary to lay steel plates on the top of the anti-collision guardrail that has been formed and reached the design strength, and lay full-length walking tracks on the steel plates to cooperate with the portal truss; therefore, the process of laying the tracks will take up a lot of construction time. Summary of the Invention

[0006] In response to the above technical problems, the present invention provides a material transportation device for bridge construction, which can reduce the time taken for laying tracks.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A material transport device for bridge construction, comprising a mobile frame and a track mechanism; the track mechanism comprises a support cover and a connecting rod, wherein two support covers are provided and fixedly connected by a connecting rod; the support cover is provided with a lifting support wheel assembly and a support track;

[0009] The lifting support wheel assembly includes a connecting seat and a lifting cylinder. The connecting seat is slidably connected to the support cover, and the two ends of the lifting cylinder are fixedly connected to the connecting seat and the support cover respectively; a first driving rail wheel is provided on the connecting seat; and a second driving rail wheel is provided at the lower end of the mobile frame to cooperate with the support rail;

[0010] The mobile frame is provided with a first mobile car and two second mobile cars which move along the mobile frame, and the mobile frame is provided with corresponding connecting rails; the first mobile car is located between the two second mobile cars; a material hopper is fixed on the first mobile car, and a sealing mechanism is provided at the discharge port of the material hopper; the second mobile car is connected to a support plate through a support cylinder, and a through groove which cooperates with the support plate is provided on the support cover; a baffle is fixedly connected to the support plate.

[0011] The blocking mechanism includes a blocking plate and a driving mechanism, and the blocking plates are provided with two, and the two blocking plates are arranged opposite to each other and are both rotatably connected to the material hopper; the two blocking plates are provided with connecting gears, and the two connecting gears are meshed with each other; the driving mechanism includes a driving rod and a driving gear, and the driving gear is coaxially fixedly connected to one of the connecting gears, and a support rod is fixed on the material hopper, and the driving rod is slidably connected to the support rod; a first return spring is provided between the support rod and the driving rod; the upper end of the driving rod is fixedly connected to a driving rack meshing with the driving gear; a pushing mechanism is provided on the baffle of one of the second mobile vehicles, and the driving rod is driven to move by the pushing mechanism.

[0012] The pushing mechanism includes a card plate, a support arm and a pushing cylinder. The support arm is fixedly connected to the baffle, the card plate is slidably connected to the support arm, and the two ends of the pushing cylinder are respectively fixedly connected to the card plate and the support arm; a driving plate that is plugged into the card plate is fixed on the driving rod.

[0013] The pushing mechanism further comprises a vibrating rod, which is fixedly connected to the clamping plate via a fixing plate.

[0014] A second reset spring is provided between the two blocking plates; both blocking plates are provided with plugging plates, which are staggered up and down, and the driving rod is provided with a plugging shaft plugged with the plugging plates.

[0015] The second moving vehicle is provided with a third driving rail wheel; the first moving vehicle is provided with a supporting rail wheel.

[0016] The first moving vehicle is fixed with an articulated seat, on which a limit claw is articulated; a third return spring is provided between the limit claw and the first moving vehicle; a limit rack that cooperates with the limit claw is fixedly connected to the moving frame; and a top rod that drives the limit claw to rotate is provided on the second moving vehicle.

[0017] The limiting claw is fixedly connected with a top shaft, and the front end of the top rod is provided with an inclined surface matched with the top shaft.

[0018] The two second moving vehicles are both provided with a mandrel for driving the limiting claw to rotate, and the two mandrels are both provided with a slot, and the two slots are staggered.

[0019] The support cover is provided with a clamping mechanism, which includes a clamping plate and a clamping cylinder; the cylinder body of the clamping cylinder is fixedly connected to the support cover, and the clamping plate is hinged to the piston rod of the clamping cylinder.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The track mechanism is installed on the crash barrier of the bridge and is provided with a support track. The mobile frame can move along the support track to achieve longitudinal movement and transportation of materials. The first mobile vehicle is pushed by the second mobile vehicle to move laterally along the mobile frame to achieve lateral movement and transportation of materials.

[0022] The second moving vehicle can move the support plate to the crash barrier. When the support cylinder extends, bringing the support plate into contact with the crash barrier, the mobile frame can be lifted, creating a gap between the mobile frame and the track mechanism. The track mechanism can be moved along the crash barrier by lifting and lowering the support wheels. Therefore, the movable track mechanism can save time in track layout.

[0023] Baffles are provided to shield wet joints during the longitudinal movement of materials to prevent material spillage.

[0024] The blocking mechanism works in conjunction with the push mechanism to achieve the vertical movement of the vibrating rod and control the opening and closing of the two blocking plates. The insertion shaft and insertion plate prevent the blocking plates from accidentally opening. The limiting claw and limiting rack cooperate to prevent the first moving vehicle from moving arbitrarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0027] Figure 3 It is a front view of the present invention;

[0028] Figure 4 is a side view of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the track mechanism of the present invention in one direction;

[0030] Figure 6 This is a structural diagram of the track mechanism of the present invention in another direction

[0031] Figure 7 It is a structural schematic diagram of the pressing mechanism of the present invention;

[0032] Figure 8It is a structural schematic diagram of the movable frame of the present invention in one direction;

[0033] Figure 9 yes Figure 8 A partial enlarged view of point B in the middle;

[0034] Figure 10 This is a schematic structural diagram of the mobile frame of the present invention in another direction;

[0035] Figure 11 yes Figure 10 A partial enlarged view of point C in the middle;

[0036] Figure 12 yes Figure 10 A partial enlarged view of point D in the middle;

[0037] Figure 13 yes Figure 10 A partial enlarged view of point E in the middle;

[0038] Figure 14 It is a structural schematic diagram of the second mobile vehicle of the present invention;

[0039] Figure 15 It is a structural schematic diagram of the first mobile vehicle of the present invention;

[0040] Among them: 1 is a mobile frame, 10 is a second driving rail wheel, 11 is a first mobile car, 12 is a second mobile car, 13 is a connecting rail, 14 is a material hopper, 15 is a blocking mechanism, 150 is a blocking plate, 151 is a connecting gear, 152 is a driving rod, 153 is a driving gear, 154 is a support rod, 155 is a first return spring, 156 is a driving rack, 157 is a second return spring, 158 is a plug plate, 159 is an insert shaft, 16 is a support cylinder, 17 is a support plate, 18 is a baffle, 19 is a third driving rail wheel, 110 is a supporting rail wheel, 111 is Articulated seat, 112 is the anti-collision wall, 2 is the track mechanism, 20 is the support cover, 200 is the through slot, 21 is the connecting rod, 22 is the lifting support wheel assembly, 220 is the connecting seat, 221 is the lifting cylinder, 222 is the first drive track wheel, 23 is the support track, 3 is the pushing mechanism, 30 is the clamping plate, 31 is the support arm, 32 is the pushing cylinder, 33 is the driving plate, 34 is the vibrating rod, 35 is the fixed plate, 4 is the limiting claw, 5 is the third return spring, 6 is the limiting rack, 7 is the push rod, 70 is the slot, 8 is the push shaft, 9 is the clamping mechanism, 90 is the clamping plate, and 91 is the clamping cylinder. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] like Figure 1-15As shown, a material transport device for bridge construction includes a mobile frame 1 and a track mechanism 2. The track mechanism 2 includes a support cover 20 and a connecting rod 21. Two support covers 20 are provided, and the two support covers 20 are fixedly connected by the connecting rod 21. The two support covers 20 are placed on the crash barriers 112 on both sides of the bridge. The support covers 20 are equipped with lifting support wheel assemblies 22 and support rails 23. The lifting support wheel assemblies 22 can drive the support covers 20 and support rails 23 to move along the crash barriers 112.

[0043] The lifting support wheel assembly 22 includes a connecting base 220 and a lifting cylinder 221. The connecting base 220 is slidably connected to the support cover 20, and the ends of the lifting cylinder 221 are fixedly connected to the connecting base 220 and the support cover 20, respectively. A first drive rail wheel 222 is provided on the connecting base 220. By extending the lifting cylinder 221, the first drive rail wheel 222 contacts the crash barrier 112, and the support cover 20 can be driven along the crash barrier 112 by the first drive rail wheel 222. A second drive rail wheel 10 is provided at the lower end of the mobile frame 1, which cooperates with the support rail 23. Both the first drive rail wheel 222 and the second drive rail wheel 10 are electric rail wheels.

[0044] A first moving carriage 11 and two second moving carriages 12 are mounted on the moving frame 1, and the moving frame 1 is provided with corresponding connecting rails 13. The first moving carriage 11 is positioned between the two second moving carriages 12. A material hopper 14 is fixed to the first moving carriage 11, and a blocking mechanism 15 is provided at the discharge port of the material hopper 14. The second moving carriages 12 are connected to a support plate 17 via a support cylinder 16. A support cover 20 is provided with a through slot 200 that mates with the support plate 17. A baffle 18 is fixedly connected to the support plate 17.

[0045] The operating principle of this device is as follows: the second drive rail wheel 10 drives the mobile frame 1 along the support rail 23 to achieve longitudinal movement and material transport; the first mobile vehicle 11 moves along the mobile frame 1 to achieve transverse movement and material transport. After the material hopper 14 on the first mobile vehicle 11 is transported to the desired pouring point, the sealing mechanism 15 is controlled to open, allowing the concrete in the material hopper 14 to be discharged. Simultaneously, the baffles 18 on the two second mobile vehicles 12 shield the wet joint on both sides, preventing material spillage.

[0046] When it is time to move to the next area for pouring, the two second mobile carriages 12 move to the sides and position themselves above the corresponding crash barriers 112. The support cylinders 16 then extend, allowing the ends of the support plates 17 to pass through the through slots 200 and contact the crash barriers 112. The support cylinders 16 continue to extend until the mobile frame 1 is lifted, creating a movable gap between the mobile frame 1 and the upper portion of the support cover 20.

[0047] When there is a movable interval, the lifting cylinder 221 retracts, causing the first drive rail wheel 222 to contact the crash barrier 112; the first drive rail wheel 222 then drives the support cover 20 to move along the crash barrier 112, thereby changing the position of the support cover 20. When the support cover 20 moves to the next pouring area, the lifting cylinder 221 extends, causing the support cover 20 to move downward and be supported on the crash barrier 112. The support cylinder 16 retracts, causing the mobile frame 1 to descend until the second drive rail wheel 10 engages with the support rail 23; the material hopper 14 on the first mobile vehicle 11 is then transported to the desired pouring point for continued pouring.

[0048] Furthermore, the blocking mechanism 15 includes two blocking plates 150 and a drive mechanism. The two blocking plates 150 are arranged opposite each other and are both rotatably connected to the material hopper 14. The two blocking plates 150 block the discharge opening of the material hopper 14. Each blocking plate 150 is equipped with a connecting gear 151, which meshes with each other. When either connecting gear 151 rotates, it can drive the two blocking plates 150 to rotate open and close.

[0049] The drive mechanism includes a drive rod 152 and a drive gear 153. The drive gear 153 is coaxially fixedly connected to one of the connecting gears 151. A support rod 154 is fixed to the material hopper 14, and the drive rod 152 is slidably connected to the support rod 154. A first return spring 155 is provided between the support rod 154 and the drive rod 152. When the drive rod 152 moves downward, it compresses the first return spring 155, generating elastic potential energy.

[0050] A driving rack 156 meshing with the driving gear 153 is fixedly connected to the upper end of the driving rod 152; a pushing mechanism 3 is provided on the baffle 18 of one of the second moving vehicles 12, and the driving rod 152 is driven to move by the pushing mechanism 3.

[0051] After reaching the pouring point, the driving mechanism 3 drives the drive rod 152 downward, causing the drive rack 156 to gradually mesh with the drive gear 153 and rotate the corresponding connecting gear 151, thereby opening the sealing plate 150. The concrete in the material hopper 14 is discharged through the discharge port. After pouring is completed, the driving mechanism 3 drives the drive rod 152 upward, causing the drive rack 156 to mesh with the drive gear 153 and rotate the corresponding connecting gear 151 in the opposite direction, thereby closing the sealing plate 150.

[0052] Furthermore, the pushing mechanism 3 includes a card plate 30, a support arm 31, and a push cylinder 32. The support arm 31 is fixedly connected to the baffle 18, the card plate 30 is slidably connected to the support arm 31, and the two ends of the push cylinder 32 are fixedly connected to the card plate 30 and the support arm 31, respectively. A drive plate 33 is fixed to the drive rod 152, which is plugged into the card plate 30. The second moving vehicle 12 equipped with the pushing mechanism 3 is moved to plug the card plate 30 into the drive rod 152. The blocking plate 150 can be opened by extending the push cylinder 32, driving the card plate 30 and the drive plate 33 downward. Conversely, the blocking plate 150 can be closed by retracting the push cylinder 32, driving the card plate 30 and the drive plate 33 upward (the first return spring 155 releases the elastic potential energy).

[0053] Furthermore, the pushing mechanism 3 also includes a vibrating rod 34, which is fixedly connected to the clamping plate 30 via a fixing plate 35. When the pushing cylinder 32 extends and drives the clamping plate 30 downward, the vibrating rod 34 is also driven downward accordingly, thereby extending into the pouring point and performing a vibrating operation during the pouring process.

[0054] Furthermore, a second return spring 157 is provided between the two blocking plates 150. The second return spring 157 is preferably a tension spring. When the two blocking plates 150 are opened, the tension spring is stretched. The two ends of the tension spring are hinged to the corresponding blocking plates 150. Both blocking plates 150 are equipped with inserts 158, which are staggered vertically.

[0055] When the two blocking plates 150 are closed, the driving rod 152 continues to move upward, so that the insertion shaft 159 on it is inserted into the two staggered insertion plates 158. Through this structural setting, the insertion shaft 159 can limit the opening of the two blocking plates 150, thereby preventing the two blocking plates 150 from opening accidentally.

[0056] Furthermore, a third drive rail wheel 19 is provided on the second moving car 12; and a support rail wheel 110 is provided on the first moving car 11. The third drive rail wheel 19 can also be an electric rail wheel, and the support rail wheel 110 can be a common rail wheel, which does not have a power source. That is, the movement of the first moving car 11 is achieved by the push of the second moving car 12. For example: when the first moving car 11 needs to move to the left, the second moving car 12 on the left moves to the left, and the second moving car 12 on the right also moves to the left and contacts the first moving car 11, pushing the first moving car 11 to move to the left accordingly.

[0057] Furthermore, to prevent the first moving vehicle 11 from moving freely, a hinged seat 111 is fixed to the first moving vehicle 11, on which a limit pawl 4 is hingedly connected. A third return spring 5 is provided between the limit pawl 4 and the first moving vehicle 11. A limit rack 6, which is connected to the limit pawl 4, is fixed to the moving frame 1. In the initial state, the third return spring 5 pushes the limit pawl 4 to rotate and engage with the limit rack 6.

[0058] When the first moving vehicle 11 needs to move, the second moving vehicle 12 gradually approaches the first moving vehicle 11 until the push rod 7 on the second moving vehicle 12 cooperates with the limiting claw 4, pushing up the limiting claw 4 and separating it from the limiting rack 6. At this time, the second moving vehicle 12 can contact the first moving vehicle 11 and drive the first moving vehicle 11 to move.

[0059] Furthermore, a top shaft 8 is fixedly connected to the limit claw 4, and a front end of the push rod 7 is provided with an inclined surface that cooperates with the top shaft 8. As the second moving vehicle 12 approaches the first moving vehicle 11, the front end inclined surface of the push rod 7 gradually contacts the top shaft 8, thereby lifting the limit claw 4.

[0060] Furthermore, both second moving carriages 12 are provided with a push rod 7 for driving the limiting claw 4 to rotate, and both push rods 7 are provided with slots 70, and the slots 70 are staggered. With this structural arrangement, even if both second moving carriages 12 are in contact with the first moving carriage 11, the two push rods 7 will not interfere with each other.

[0061] Furthermore, to enhance the securing effect, a clamping mechanism 9 is provided on the support cover 20. The clamping mechanism 9 comprises a clamping plate 90 and a clamping cylinder 91. The cylinder body of the clamping cylinder 91 is fixedly connected to the support cover 20, and the clamping plate 90 is hingedly connected to the piston rod of the clamping cylinder 91. When the support cover 20 moves, the clamping cylinder 91 extends, causing the clamping plate 90 to contact the crash barrier 112, thereby securing the support cover 20. Conversely, when the support cover 20 needs to move, the clamping cylinder 91 retracts, removing the clamping plate 90 from contact with the crash barrier 112.

[0062] Only the preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments.

Claims

1. A material transport device for bridge construction, characterized in that: It comprises a moving frame (1) and a track mechanism (2); the track mechanism (2) comprises a support cover (20) and a connecting rod (21); two support covers (20) are provided, and the two support covers (20) are fixedly connected via the connecting rod (21); the support cover (20) is provided with a lifting support wheel assembly (22) and a support track (23); The lifting support wheel assembly (22) includes a connecting seat (220) and a lifting cylinder (221), wherein the connecting seat (220) is slidably connected to the support cover (20), and the two ends of the lifting cylinder (221) are fixedly connected to the connecting seat (220) and the support cover (20), respectively; a first driving rail wheel (222) is provided on the connecting seat (220); and a second driving rail wheel (10) is provided at the lower end of the mobile frame (1) and is matched with the support rail (23); The mobile frame (1) is provided with a first mobile vehicle (11) and two second mobile vehicles (12) that move along the mobile frame (1), and the mobile frame (1) is provided with corresponding connecting rails (13); the first mobile vehicle (11) is located between the two second mobile vehicles (12); a material hopper (14) is fixed on the first mobile vehicle (11), and a blocking mechanism (15) is provided at the discharge port of the material hopper (14); the second mobile vehicle (12) is connected to a support plate (17) through a support cylinder (16), and a through groove (200) that cooperates with the support plate (17) is provided on the support cover (20); a baffle (18) is fixedly connected to the support plate (17); The blocking mechanism (15) includes a blocking plate (150) and a driving mechanism. Two blocking plates (150) are provided. The two blocking plates (150) are arranged opposite to each other and are both rotatably connected to the material hopper (14). The two blocking plates (150) are each provided with a connecting gear (151), and the two connecting gears (151) are meshed with each other. The driving mechanism includes a driving rod (152) and a driving gear (153). The driving gear (153) is coaxially fixedly connected to one of the connecting gears (151). A support rod (154) is fixed on the material hopper (14), and the driving rod (152) is slidably connected to the support rod (154); a first return spring (155) is provided between the support rod (154) and the driving rod (152); a driving rack (156) meshing with the driving gear (153) is fixedly connected to the upper end of the driving rod (152); a pushing mechanism (3) is provided on the baffle (18) of one of the second moving vehicles (12), and the driving rod (152) is driven to move by the pushing mechanism (3); The pushing mechanism (3) comprises a clamping plate (30), a support arm (31) and a pushing cylinder (32); the support arm (31) is fixedly connected to the baffle (18); the clamping plate (30) is slidably connected to the support arm (31); and both ends of the pushing cylinder (32) are fixedly connected to the clamping plate (30) and the support arm (31), respectively; a driving plate (33) plugged into the clamping plate (30) is fixed on the driving rod (152); The pushing mechanism (3) further comprises a vibrating rod (34), wherein the vibrating rod (34) is fixedly connected to the clamping plate (30) via a fixing plate (35); A second return spring (157) is provided between the two blocking plates (150); both blocking plates (150) are provided with an inserting plate (158), the two inserting plates (158) are staggered up and down, and the driving rod (152) is provided with an inserting shaft (159) that is plugged into the inserting plate (158).

2. A material transport device for bridge construction according to claim 1, characterized in that: The second moving vehicle (12) is provided with a third driving rail wheel (19); and the first moving vehicle (11) is provided with a supporting rail wheel (110).

3. A material transport device for bridge construction according to claim 2, characterized in that: The first moving vehicle (11) is fixed with an articulated seat (111), and a limit claw (4) is hinged on the articulated seat (111); a third return spring (5) is provided between the limit claw (4) and the first moving vehicle (11); a limit rack (6) cooperating with the limit claw (4) is fixedly connected to the moving frame (1); and a top rod (7) for driving the limit claw (4) to rotate is provided on the second moving vehicle (12).

4. A material transport device for bridge construction according to claim 3, characterized in that: The limiting claw (4) is fixedly connected to a top shaft (8), and the front end of the top rod (7) is provided with an inclined surface that matches the top shaft (8).

5. A material transport device for bridge construction according to claim 3 or 4, characterized in that: Both second moving vehicles (12) are provided with a push rod (7) for driving the limiting claw (4) to rotate. Both push rods (7) are provided with a slot (70), and the two slots (70) are staggered.

6. The material transport device for bridge construction according to claim 1, characterized in that: A clamping mechanism (9) is provided on the support cover (20), and the clamping mechanism (9) comprises a clamping plate (90) and a clamping cylinder (91); the cylinder body of the clamping cylinder (91) is fixedly connected to the support cover (20), and the clamping plate (90) is hinged to the piston rod of the clamping cylinder (91).

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