Multifunctional carrying equipment for concrete guardrails

Abstract

The invention relates to the technical field of material carrying, in particular to multifunctional carrying equipment for concrete guardrails, which comprises a forklift main body, a gantry structure and a working device, the gantry structure is arranged on the forklift main body, a pallet fork is arranged at the lower end of the gantry structure, and the working device is arranged at the upper end of the gantry structure. An angle control mechanism is arranged between the portal structure and the forklift main body; the working device comprises a connecting plate, a frame and an executing mechanism, the connecting plate is fixedly connected with the portal structure, the frame is arranged on the connecting plate in a sliding mode in the transverse direction, and the executing mechanism is arranged on the frame in the longitudinal direction. According to the concrete guardrail carrying device, the concrete guardrail carrying multifunctionality and operation flexibility are remarkably improved. The angle control mechanism is in linkage with the outer portal frame to achieve accurate adjustment of the height of the pallet fork, and in combination with the transverse moving mechanism driven by the lateral moving oil cylinder and the lead screw-thread bushing longitudinal driving system, an executing mechanism can complete accurate three-dimensional space positioning.

Description

Technical Field

[0001] The present invention relates to the technical field of material handling, and more specifically, to a multifunctional handling device for concrete guardrails. Background Art

[0002] A forklift is a commonly used industrial handling vehicle with dual functions of loading, unloading and handling in the logistics field. It uses a fork as the main picking device, relies on a hydraulic lifting mechanism to lift goods, and realizes the horizontal handling of goods by a tire-type driving system.

[0003] As an indispensable key safety protection facility in highway construction, the guardrail plays a crucial guarantee role. Shanxi Transportation Control Group has launched a UHPC low-carbon and environmentally friendly semi-assembled high-strength concrete guardrail. In the transfer link of the goods yard, this type of semi-assembled concrete guardrail mainly relies on a forklift for handling, and it must rely on cushioning sleepers to assist the fork operation. This not only results in a messy and unregulated placement of the guardrails in the goods yard, but also makes the refined management level of the goods yard at a relatively low level. In the assembly process at the construction site, excessive reliance on the cooperation of hydraulic forklifts and manual labor, this operation mode has safety risks that cannot be ignored, and it is extremely easy to cause product damage or personal injury accidents due to accidental situations such as careless human operation and sudden equipment failures.

[0004] Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0005] In order to overcome the deficiencies in the existing technology, a multifunctional handling device for concrete guardrails that meets the loading, unloading, handling and assembly operation requirements of existing guardrails is provided.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: A multifunctional handling equipment for concrete guardrails, including a forklift body, a gantry structure and a working device. The gantry structure is arranged on the forklift body, a fork is arranged at the lower end of the gantry structure, the working device is arranged at the upper end of the gantry structure, and an angle control mechanism for controlling the tilt angle of the gantry structure is arranged between the gantry structure and the forklift body; The working device includes a connecting plate, a frame and an actuator. The connecting plate is fixedly connected to the gantry structure. The frame is slidably arranged on the connecting plate in the transverse direction. The actuator is arranged on the frame in the longitudinal direction. A transverse driving mechanism is arranged between the frame and the connecting plate, and a longitudinal driving mechanism is arranged between the actuator and the frame; The actuator includes an intermediate plate and a rotation controller arranged on the intermediate plate. A vertical driving mechanism is arranged between the rotation controller and the intermediate plate, and a connecting flange for connecting an actuator is arranged at the output end of the rotation controller.

[0007] Preferably, the gantry structure includes an outer gantry and an inner gantry connected by sliding, the outer gantry is rotatably connected to the forklift body, and the angle control mechanism includes an angle control oil cylinder arranged between the outer gantry and the forklift body; An elevation controller is arranged between the inner gantry and the outer gantry, the fork is arranged at the lower end of the outer gantry, and the connecting plate is arranged on the inner gantry.

[0008] Preferably, the frame includes a back plate and a cross beam fixedly connected, there are two cross beams, and the two cross beams are fixedly connected by two support plate frames; the lateral drive mechanism includes a cross support and a side shift oil cylinder, the cross support is arranged on the side of the back plate away from the cross beam, the cross support is connected to the back plate through an interlayer plate, and the back plate is hung on the connecting plate through the cross support; The side shift oil cylinder includes a side shift oil cylinder barrel, a side shift oil cylinder support plate and a side shift oil cylinder support seat, a retaining frame is fixedly connected to the front end of the connecting plate, a side shift oil cylinder support plate is fixedly connected to the retaining frame, a gap is arranged between the back plate and the cross support for the side shift oil cylinder support plate to pass through upward and move horizontally, a side shift oil cylinder support seat is fixedly connected to the upper end of the back plate, and the two ends of the side shift oil cylinder barrel are respectively hinged to the side shift oil cylinder support seat and the side shift oil cylinder support plate.

[0009] Preferably, a connecting block that is slidably matched with the lower end of the connecting plate is fixedly connected to the lower end of the back plate.

[0010] Preferably, roller plates are fixedly connected to both sides of the intermediate plate, vertical rollers and horizontal rollers are rotatably connected to the outside of the roller plates on both sides through roller shafts, and roller grooves that cooperate with the horizontal rollers and the vertical rollers are arranged on the frame.

[0011] Preferably, the longitudinal drive mechanism includes a lead screw, a lead screw support, a threaded sleeve and a rotary motor, there are two lead screw supports, the two lead screw supports are respectively arranged on the two support plate frames, the two ends of the lead screw are respectively rotatably arranged in the two lead screw supports, the threaded sleeve is fixedly arranged on the intermediate plate and is in threaded cooperation with the lead screw, and the rotary motor is arranged on one of the support plate frames, and the motor shaft of the rotary motor is connected to one end of the lead screw.

[0012] Preferably, the vertical drive mechanism includes a guiding structure, a rectangular pipe, an oil cylinder ear plate and a lifting oil cylinder, the guiding structure is fixedly arranged on the intermediate plate, a through hole is arranged in the middle of the guiding structure, the rectangular pipe is slidably arranged in the through hole, the upper end of the rectangular pipe extends out of the guiding structure and is fixedly connected to one end of the oil cylinder ear plate, and the other end of the oil cylinder ear plate is connected to the lifting oil cylinder; The lower end of the rectangular pipe is connected to the housing of the rotation controller.

[0013] Preferably, the lifting oil cylinder includes an oil cylinder body and an oil cylinder disc, and the oil cylinder body is fixedly arranged on the intermediate plate through the oil cylinder disc; The rotation controller includes a speed reducer and an oil motor, and the output shaft of the oil motor is connected to the speed reducer to transmit power.

[0014] Preferably, guide rollers are arranged between the inner gantry and the outer gantry.

[0015] Preferably, a reinforcing plate is arranged between the cross beam and the back plate.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: Through the collaborative design of optimizing the gantry structure and the working device, the present patent technical solution significantly improves the versatility and operation flexibility of concrete guardrail handling. The angle control mechanism is linked with the outer gantry to achieve precise adjustment of the fork height. Combined with the lateral movement mechanism driven by the side shift cylinder and the longitudinal drive system of the lead screw-thread sleeve, the actuator can complete precise three-dimensional positioning to adapt to the clamping requirements of different specifications of concrete guardrails. The cooperative design of the guide rollers and the roller grooves greatly reduces the movement friction resistance and ensures the stability of the lifting and translation processes; the modular actuator interface is combined with the rotation controller, which can quickly switch the clamping device or the spreader, enhancing the versatility of the equipment. Through the comprehensive design of the back plate strengthening structure, the support plate frame connection and the rectangular pipe guiding mechanism, while maintaining the structural compactness, the bearing stability is significantly improved and the operation risk is reduced. This equipment combines the basic functions of a forklift and the control ability of a special fixture, effectively solving the technical bottlenecks of difficult handling attitude adjustment and insufficient positioning accuracy of traditional equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following will further elaborate on the specific implementation manners of the present invention through the drawings.

[0018] Figure 1 are the three views of the concrete guardrail; Figure 2 is the overall structure schematic diagram of the present invention; Figure 3 is the structure schematic diagram of the working device of the present invention; Figure 4 is the structure schematic diagram of the lateral drive mechanism; Figure 5 is the structure schematic diagram of the actuator; Figure 6 is the structure schematic diagram of the gantry structure; Figure 7 is the structure schematic diagram of the outer gantry; Figure 8 is the structure schematic diagram of a kind of gripper; Figure 9 is the structure schematic diagram of the inner gantry lifting structure.

[0019] In the figure: 1, forklift truck main body; 2, fork; 3, motor; 4, outer gantry; 5, inner gantry; 6, connecting plate; 7, cross beam; 8, actuator; 9, side shift oil cylinder; 10, back plate; 11, horizontal support; 12, sandwich panel; 13, reinforcing plate; 14, support plate frame; 15, lead screw; 16, lifting oil cylinder; 17, lead screw support; 18, threaded sleeve; 19, rotating motor; 20, guiding structure; 21, intermediate plate; 22, roller plate; 23, oil motor; 24, rectangular pipe; 25, reducer; 26, roller shaft; 27, horizontal roller; 28, vertical roller; 29, oil cylinder disc; 30, oil cylinder body; 31, oil cylinder ear plate; 32, side shift oil cylinder support plate; 33, side shift oil cylinder barrel; 34, side shift oil cylinder support; 35, cage; 36, connecting block; 37, working device; 38, sprocket. Specific embodiments

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment: As Figures 1 to 7 shown, a multifunctional handling equipment for concrete guardrails includes a forklift truck main body 1, a gantry structure and a working device 37. The gantry structure is arranged on the forklift truck main body 1, and an angle control mechanism for controlling the tilt angle of the gantry structure is arranged between the gantry structure and the forklift truck main body 1. Preferably, the gantry structure includes an outer gantry 4 and an inner gantry 5 that are slidably connected, and guiding rollers are arranged between the inner gantry 5 and the outer gantry 4 to reduce friction. A lifting controller is arranged between the inner gantry 5 and the outer gantry 4, and the lifting controller adopts the existing technology; the outer gantry 4 is rotatably connected to the forklift truck main body 1, and the angle control mechanism includes an angle control oil cylinder arranged between the outer gantry 4 and the forklift truck main body 1.

[0022] The fork 2 is arranged at the lower end of the outer gantry 4 and can be used to directly fork goods or trays, or cooperate with the working device 37. When it is necessary to fork goods, the angle of the outer gantry 4 is changed through the angle control oil cylinder, and then the height of the front end of the fork 2 is changed, thereby facilitating the forking of goods.

[0023] The working device 37 is arranged on the inner gantry 5. Specifically, the working device 37 includes a connecting plate 6, a frame, and an actuator 8. The connecting plate 6 is fixedly connected to the inner gantry 5. The frame is slidably arranged on the connecting plate 6 in the transverse direction. The actuator 8 is arranged on the frame in the longitudinal direction. A transverse driving mechanism for driving the frame to move transversely is arranged between the frame and the connecting plate 6. A longitudinal driving mechanism for driving the actuator 8 to move longitudinally is arranged between the actuator 8 and the frame. In this embodiment, the specific directions of transverse and longitudinal are based on Figure 3 the directions shown in

[0024] The frame includes a back plate 10 and cross beams 7 fixedly connected. There are two cross beams 7, and the two cross beams 7 are arranged on the same side of the back plate 10. A reinforcing plate 13 is arranged between the cross beam 7 and the back plate 10. The two cross beams 7 are fixedly connected by two support brackets 14. The transverse driving mechanism includes a transverse support 11 and a side shift oil cylinder 9. The transverse support 11 is arranged on the side of the back plate 10 away from the cross beam 7. The transverse support 11 is connected to the back plate 10 through a sandwich plate 12. The back plate 10 is hung on the connecting plate 6 through the transverse support 11. A connecting block 36 that slidably cooperates with the lower end of the connecting plate 6 is fixedly connected to the lower end of the back plate 10, preventing the back plate 10 from falling off the connecting plate.

[0025] The side shift oil cylinder 9 includes a side shift oil cylinder barrel 33, a side shift oil cylinder support plate 32, and a side shift oil cylinder support 34. A retaining frame 35 is fixedly connected to the front end of the connecting plate 6. The side shift oil cylinder support plate 32 is fixedly connected to the retaining frame 35. A gap is arranged between the back plate 10 and the transverse support 11 for the side shift oil cylinder support plate 32 to pass through upward and move transversely. The side shift oil cylinder support 34 is fixedly connected to the upper end of the back plate 10. The two ends of the side shift oil cylinder barrel 33 are respectively hinged to the side shift oil cylinder support 34 and the side shift oil cylinder support plate 32.

[0026] By extending or shortening the side shift oil cylinder barrel 33, the back plate 10 is driven to move left and right relative to the retaining frame 35 and the connecting plate 6, thereby realizing the overall transverse movement of the frame.

[0027] The actuator 8 includes an intermediate plate 21 and a rotation controller arranged on the intermediate plate 21. Roller plates 22 are fixedly connected to both sides of the intermediate plate 21. Vertical rollers 28 and horizontal rollers 27 are rotatably connected to the outside of the roller plates 22 on both sides through roller shafts 26. Roller grooves cooperating with the horizontal rollers 27 and the vertical rollers 28 are arranged on the frame. By arranging the vertical rollers 28 and the horizontal rollers 27, the friction during the movement of the intermediate plate 21 can be reduced, and the movement stability can be improved.

[0028] To facilitate the driving of the intermediate plate 21, the longitudinal driving mechanism includes a lead screw 15, lead screw supports 17, a threaded sleeve 18, and a rotary motor 19. There are two lead screw supports 17, which are respectively arranged on two support plate frames 14. The two ends of the lead screw 15 are respectively rotatably arranged in the two lead screw supports 17. The threaded sleeve 18 is fixedly arranged on the intermediate plate 21. The lead screw 15 is in threaded cooperation with the threaded sleeve 18. The rotary motor 19 is arranged on one of the support plate frames 14, and the motor shaft of the rotary motor 19 is connected to one end of the lead screw 15.

[0029] The rotary motor 19 drives the lead screw 15 to rotate, and then through the threaded cooperation between the threaded sleeve 18 and the lead screw 15, the intermediate plate 21 is driven to move along the axial direction of the lead screw 15.

[0030] Preferably, the rotary controller includes a reduction gear 25 and an oil motor 23. The output shaft of the oil motor 23 is connected to the reduction gear 25 to transmit power. A connection flange for connecting the actuator is arranged at the output end of the reduction gear 25. The actuator can select an existing clamping device or a lifting tool according to different concrete specifications.

[0031] A vertical driving mechanism is arranged between the rotary controller and the intermediate plate 21. The rotary controller and the actuator thereon are driven to move up and down through the vertical driving mechanism, which facilitates the docking with the concrete guardrail.

[0032] Preferably, the vertical driving mechanism includes a guiding structure 20, a rectangular pipe 24, an oil cylinder ear plate 31, and a lifting oil cylinder 16. The guiding structure 20 is fixedly arranged on the intermediate plate 21. A through hole is arranged in the middle of the guiding structure 20. The rectangular pipe 24 is slidably arranged in the through hole. The upper end of the rectangular pipe 24 extends out of the guiding structure 20 and is fixedly connected to one end of the oil cylinder ear plate 31. The other end of the oil cylinder ear plate 31 is connected to the lifting oil cylinder 16. The lower end of the rectangular pipe 24 is connected to the housing of the rotary controller. The lifting oil cylinder 16 drives the oil cylinder ear plate 31 to lift, and then drives the rectangular pipe 24 and the rotary controller thereon to lift. In this embodiment, the lifting oil cylinder 16 includes an oil cylinder body 30 and an oil cylinder disc 29. The oil cylinder body 30 is fixedly arranged on the intermediate plate 21 through the oil cylinder disc 29.

[0033] The actuator 8 of the present invention can adapt to clamping devices with different structures according to the morphological characteristics of the goods to be transported. The clamping device is in power connection with the reduction gear 25 through the working device 37. During operation, such as Figure 8The clamping device shown first performs a grasping operation on the guardrail, and then uses a multi-degree-of-freedom actuator composed of the working device 37 and the gantry to accurately transfer a single guardrail to the bearing surface of the forklift forks 2 multiple times, thereby completing the handling of the guardrail. After transporting the goods to the designated station, the above-mentioned clamping-transfer operation process is repeated to form a complete automated goods handling. This device realizes adaptive clamping of different specifications of goods through modular design and relies on an integrated motion control system to complete the efficient transfer of goods.

[0034] Operation steps: The guardrail handling operation process of the forklift 1 can be divided into five stages: First, equipment preparation and positioning are carried out. After the operator starts the forklift 1 through the man-machine interaction platform in the cab and checks the hydraulic system, the height of the forklift forks 2 from the ground is adjusted by tilting the outer gantry 4, and then the inner gantry 5 is used to lift and lower precisely to align with the target guardrail. When entering the grasping stage, the longitudinal drive mechanism drives the actuator to extend forward along the crossbeam 7 until the actuator contacts the guardrail, and then the actuator clamps the guardrail.

[0035] The guardrail is vertically lifted to a safe height by the lifting cylinder 16, and the horizontal position of the actuator is adjusted in real time by cooperating with the side-shift cylinder 9 during driving. When placing or assembling, the lifting cylinder 16 controls the guardrail to slowly descend and position, and the angle of the guardrail is adjusted by rotating the fixture through the rotation controller to cooperate with the operator to complete the guardrail assembly work. Finally, enter the cyclic operation. The forklift realizes the handling of multiple types of guardrails by quickly replacing attachments such as suction cups, and continuously adapts to the change of the goods flow relying on the flexible scheduling ability of the side-shift cylinder 9 to form an efficient closed-loop operation process.

[0036] 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. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention, and all such changes should be included within the protection scope of the present invention.

Claims

1. A multifunctional handling equipment for concrete guardrail, characterized in that: The forklift comprises a forklift body (1), a gantry structure and a working device (37), wherein the gantry structure is arranged on the forklift body (1), a cargo fork (2) is arranged at the lower end of the gantry structure, the working device (37) is arranged at the upper end of the gantry structure, and an angle control mechanism for controlling the inclination angle of the gantry structure is arranged between the gantry structure and the forklift body (1); The working device (37) comprises a connecting plate (6), a frame and an actuator (8), wherein the connecting plate (6) is fixedly connected to the gantry structure, the frame is slidably arranged on the connecting plate (6) in a transverse direction, the actuator (8) is arranged on the frame in a longitudinal direction, a transverse driving mechanism is arranged between the frame and the connecting plate (6), and a longitudinal driving mechanism is arranged between the actuator (8) and the frame; the actuator (8) comprises an intermediate plate (21) and a rotation controller arranged on the intermediate plate (21), a vertical driving mechanism is arranged between the rotation controller and the intermediate plate (21), and a connecting flange for connecting the actuator is arranged at the output end of the rotation controller.

2. The multifunctional handling equipment for concrete guardrail according to claim 1, characterized in that: The gantry structure comprises an outer gantry (4) and an inner gantry (5) which are slidably connected, the outer gantry (4) being rotatably connected to the forklift body (1), and the angle control mechanism comprising an angle control cylinder arranged between the outer gantry (4) and the forklift body (1); A lifting controller is provided between the inner mast (5) and the outer mast (4), the fork (2) is provided at the lower end of the outer mast (4), and the connecting plate (6) is provided on the inner mast (5).

3. The multifunctional handling equipment for concrete guardrail according to claim 1, characterized in that: The frame comprises a back plate (10) and a cross beam (7) which are fixedly connected, wherein two cross beams (7) are provided, and the two cross beams (7) are fixedly connected via two support plate frames (14); the transverse drive mechanism comprises a transverse bracket (11) and a side shift cylinder (9); the transverse bracket (11) is provided on a side of the back plate (10) away from the cross beam (7), the transverse bracket (11) is connected to the back plate (10) via a sandwich plate (12), and the back plate (10) is hung on the connecting plate (6) via the transverse bracket (11); The side shift cylinder (9) comprises a side shift cylinder barrel (33), a side shift cylinder support plate (32) and a side shift cylinder support seat (34); the front end of the connecting plate (6) is fixedly connected to a retaining frame (35); the retaining frame (35) is fixedly connected to the side shift cylinder support plate (32); a gap is provided between the back plate (10) and the cross bracket (11) for the side shift cylinder support plate (32) to pass through upward and move laterally; the upper end of the back plate (10) is fixedly connected to the side shift cylinder support seat (34); and the two ends of the side shift cylinder barrel (33) are respectively hinged to the side shift cylinder support seat (34) and the side shift cylinder support plate (32).

4. The multifunctional handling equipment for concrete guardrail according to claim 3 is characterized in that: The lower end of the back plate (10) is fixedly connected to a connection block (36) that slidably cooperates with the lower end of the connection plate (6).

5. The multifunctional handling equipment for concrete guardrail according to claim 1, characterized in that: Roller plates (22) are fixedly connected to both sides of the middle plate (21), and the outer sides of the roller plates (22) on both sides are rotatably connected to vertical rollers (28) and horizontal rollers (27) via roller shafts (26), and roller grooves cooperating with the horizontal rollers (27) and the vertical rollers (28) are provided on the frame.

6. The multifunctional handling equipment for concrete guardrail according to claim 3, characterized in that: The longitudinal drive mechanism comprises a lead screw (15), a lead screw support (17), a threaded sleeve (18) and a rotary motor (19); two lead screw supports (17) are provided, and the two lead screw supports (17) are respectively provided on two support plate frames (14); two ends of the lead screw (15) are respectively rotatably provided in the two lead screw supports (17); the threaded sleeve (18) is fixedly provided on the middle plate (21) and threadably engaged with the lead screw (15); the rotary motor (19) is provided on one of the support plate frames (14); and a motor shaft of the rotary motor (19) is connected to one end of the lead screw (15).

7. The multifunctional handling equipment for concrete guardrail according to claim 1, characterized in that: The vertical drive mechanism comprises a guide structure (20), a rectangular tube (24), a cylinder ear plate (31) and a lifting cylinder (16); the guide structure (20) is fixedly arranged on the middle plate (21); a through hole is arranged in the middle of the guide structure (20); the rectangular tube (24) is slidably arranged in the through hole; the upper end of the rectangular tube (24) extends out of the guide structure (20) and is fixedly connected to one end of the cylinder ear plate (31); and the other end of the cylinder ear plate (31) is connected to the lifting cylinder (16); The lower end of the rectangular tube (24) is connected to the housing of the rotary controller.

8. The multifunctional handling equipment for concrete guardrail according to claim 7, characterized in that: The lifting cylinder (16) comprises a cylinder body (30) and a cylinder plate (29), and the cylinder body (30) is fixedly arranged on the middle plate (21) via the cylinder plate (29); The rotary controller comprises a reducer (25) and an oil motor (23), wherein an output shaft of the oil motor (23) is connected to the reducer (25) to transmit power.

9. The multifunctional handling equipment for concrete guardrail according to claim 1, characterized in that: A guide roller is provided between the inner door frame (5) and the outer door frame (4).

10. The multifunctional handling equipment for concrete guardrail according to claim 1, characterized in that: A reinforcing plate (13) is provided between the cross beam (7) and the back plate (10).

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