Device for hoisting and transferring concrete prefabricated slabs in batches

Abstract

The utility model discloses a device for hoisting and transferring batch concrete precast slabs, and relates to a hoisting and transferring device. The utility model aims to solve the problems that batched concrete precast slabs are easy to damage during hoisting and transferring, the labor intensity is high and the transferring efficiency is low. During hoisting and transferring, the hydraulic motor is used for controlling the direction of the fixed cross beam, the piston rod of the first hydraulic cylinder extends out, and the arc-shaped clamping plate clamps a prefabricated slab; a lifting arm of the loading machine ascends to hoist the prefabricated slab; a piston rod of the second hydraulic cylinder extends out, so that the prefabricated slabs are relatively far away, and a partition plate between every two adjacent prefabricated slabs falls off to the ground; the loader travels to transfer a plurality of prefabricated slabs in a single mold to a curing position; by means of the device, the disassembling efficiency of the partition plate can be improved, the integrity of the prefabricated plate is guaranteed, the safety of workers in the disassembling process can be improved, and meanwhile the labor intensity of the workers is greatly reduced. The utility model belongs to the technical field of concrete slab hoisting devices.

Description

Technical Field

[0001] The utility model relates to a hoisting and transporting device, in particular to a device used for hoisting and transporting batches of prefabricated concrete panels, and belongs to the technical field of concrete panel hoisting devices. Background Art

[0002] With the country's strong investment in irrigation areas, the reconstruction of modern irrigation areas is in full swing. The slope protection of the diversion channel generally uses concrete precast panels as the lining structure. Large irrigation areas have a huge demand for the number of precast panels, so modular molds are used to make precast panels, that is, the cross-section of the mold cavity is equal to the cross-section of the precast panel, and there are several partitions distributed at equal intervals in the length direction of the mold; compared with the traditional flat mold placed horizontally on the ground and only capable of making a single precast panel, a single modular mold can cast and form several precast panels at a time, occupying a small area, and the loss of mold materials is relatively small.

[0003] However, the partition between two adjacent prefabricated panels needs to be removed before they are hoisted and transported. The current removal method is to manually remove the outer molds around the mold, then move the single prefabricated panel to an inclined position, remove the partition with a rubber hammer or crowbar, and then straighten the prefabricated panel and hoist it for transportation. This removal method inevitably causes the edges and corners of the prefabricated panels to fall off, resulting in poor appearance quality of the prefabricated panels. In addition, the weight of a prefabricated panel is about 90 kg, and workers have to operate for a long time. The high labor intensity leads to low efficiency in removal and transportation, and there are safety hazards.

[0004] In summary, how to propose a lifting and transporting device to address the above-mentioned technical problems has become an urgent problem to be solved by technicians in this field. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a device for hoisting and transporting batches of prefabricated concrete panels.

[0006] The technical solution of the utility model is: a device for hoisting and transporting batches of precast concrete panels, comprising a frame, a first hydraulic cylinder, a second hydraulic cylinder, two connecting plates, a hoisting connection unit and two groups of clamping arms arranged in mirror image.

[0007] The two groups of clamping arms each include a variable distance unit, a fixed crossbeam, two movable crossbeams and a plurality of slide blocks.

[0008] A plurality of slide blocks are arranged between two movable cross beams, arc-shaped clamping plates are installed on the lower surfaces of the slide blocks, and the movable cross beams and the slide blocks are both slidably connected with the fixed cross beams.

[0009] The fixed crossbeam is hinged to the frame, and the movable crossbeam is hinged to the connecting plate; the first hydraulic cylinder is arranged above the frame, and the cylinder body and piston rod of the first hydraulic cylinder are respectively hinged to a fixed crossbeam; the second hydraulic cylinder is arranged at 90 degrees to the first hydraulic cylinder, and the cylinder body and piston rod of the second hydraulic cylinder are respectively fixed to the frame and the connecting plate.

[0010] The pitch-changing unit comprises a guide rod, a pitch-changing chain and a plurality of sleeves.

[0011] A plurality of sleeves are sleeved on the guide rod, and limit pins are installed at both ends of the guide rod.

[0012] The two ends of the variable pitch chain are respectively fixed to a movable crossbeam, the slider and the variable pitch chain are fixed to the outer circumference of the sleeve, and the locking ring on the movable crossbeam is separated from the locking ring on the sleeve by several locking rings, and the locking rings on two adjacent sleeves are separated by several locking rings.

[0013] The lifting connection unit includes a first connection plate, a second connection plate, a hydraulic motor and a lifting chain.

[0014] The output shaft of the hydraulic motor is fixedly connected to the first connecting plate, the cylinder body of the hydraulic motor is fixedly connected to the second connecting plate, and the two ends of the lifting chain are respectively fixedly connected to the fixed crossbeam and the second connecting plate.

[0015] Compared with the prior art, the utility model has the following effects:

[0016] The utility model is easy to operate, and the use of the utility model can improve the disassembly efficiency of the partition plate, ensure the integrity of the prefabricated plate, and is also beneficial to improving the safety of workers during the disassembly process, while also greatly reducing the labor intensity of manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 It is the first axonometric drawing of the utility model;

[0020] Figure 4 It is the second axonometric drawing of the utility model;

[0021] Figure 5 yes Figure 2 A partial enlarged view of point Ⅰ in the middle;

[0022] Figure 6 yes Figure 2 A partial enlarged view of the middle II;

[0023] Figure 7 yes Figure 4A partial enlarged view of point III in the middle.

[0024] In the figure: 100, frame; 110, first hydraulic cylinder; 120, second hydraulic cylinder; 130, connecting plate; 200, clamping arm; 210, fixed beam; 211, rolling unit baffle; 220, movable beam; 230, slider; 240, arc clamp; 310, guide rod; 320, variable pitch chain; 330, sleeve; 410, retaining frame; 420, ball; 500, lifting connection unit; 510, first connecting plate; 520, second connecting plate; 530, hydraulic motor; 540, lifting chain. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the implementation modes of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0026] Specific implementation method 1: Combination Figures 1 to 7 The present embodiment is described as follows. A device for hoisting and transporting batches of precast concrete panels comprises a frame 100, a first hydraulic cylinder 110, a second hydraulic cylinder 120, two connecting plates 130, a hoisting connection unit 500 and two sets of clamping arms 200 arranged in a mirror image.

[0027] Both sets of clamping arms 200 include a variable pitch unit, a fixed beam 210, two movable beams 220 and a plurality of sliders 230. The number of sliders 230 is equal to the number of precast panels in a single mold. The plurality of sliders 230 are arranged between the two movable beams 220. The width of the slider 230 is equal to the sum of the thicknesses of a precast panel and a partition panel. An arc-shaped clamping plate 240 is installed on the lower surface of the slider 230. The width of the arc-shaped clamping plate 240 is less than the thickness of the precast panel. With this arrangement, when the precast panels are hoisted, the arc-shaped clamping plate 240 can correspond one to one with the precast panels.

[0028] The movable crossbeam 220 and the slider 230 are both slidably connected to the fixed crossbeam 210. The fixed crossbeam 210 is provided with a plurality of oil filling holes, which are evenly distributed along the length direction of the fixed crossbeam 210. With such an arrangement, lubricating oil or grease is added between the mating surfaces of the fixed crossbeam 210 and the movable crossbeam 220 through the oil filling holes.

[0029] The fixed crossbeam 210 is hinged to the frame 100, and the movable crossbeam 220 is hinged to the connecting plate 130; the first hydraulic cylinder 110 is arranged above the frame 100, and the cylinder body and the piston rod of the first hydraulic cylinder 110 are respectively hinged to a fixed crossbeam 210; the second hydraulic cylinder 120 is arranged at 90° to the first hydraulic cylinder 110, and the cylinder body and the piston rod of the second hydraulic cylinder 120 are respectively fixed to the frame 100 and the connecting plate 130, and the telescopic stroke of the piston rod of the second hydraulic cylinder 120 is less than the length of the sliding fit between the movable crossbeam 220 and the fixed crossbeam 210. This arrangement can prevent the movable crossbeam 220 from falling off the fixed crossbeam 210.

[0030] The pitch-changing unit includes a guide rod 310 , a pitch-changing chain 320 and a plurality of sleeves 330 .

[0031] A plurality of sleeves 330 are sleeved on the guide rod 310 , and limit pins are installed at both ends of the guide rod 310 , so as to prevent the sleeves 330 from falling off the guide rod 310 .

[0032] Both ends of the variable pitch chain 320 are fixedly connected to a movable crossbeam 220 respectively, the slider 230 and the variable pitch chain 320 are fixedly connected to the outer circumferential surface of the sleeve 330, and the locking ring on the movable crossbeam 220 and the locking ring on the sleeve 330 are separated by several locking rings, and the locking rings on two adjacent sleeves 330 are separated by several locking rings. When several sliders 230 are close together, the variable pitch chain 320 is in a relaxed state, and when several sliders 230 are relatively far away, the variable pitch chain 320 is tightened.

[0033] The lifting connection unit 500 includes a first connection plate 510 , a second connection plate 520 , a hydraulic motor 530 , and a lifting chain 540 .

[0034] The output shaft of the hydraulic motor 530 is fixedly connected to the first connecting plate 510 , the cylinder of the hydraulic motor 530 is fixedly connected to the second connecting plate 520 , and both ends of the hoisting chain 540 are respectively fixedly connected to the fixed beam 210 and the second connecting plate 520 .

[0035] Specific implementation method 2: Combination Figure 2 and Figure 5 This embodiment further includes a rolling unit, which is arranged between the mating surfaces of the movable crossbeam 220 and the fixed crossbeam 210. The rolling unit includes a retaining frame 410, on which a plurality of balls 420 are mounted, so that the friction between the mating surfaces is reduced. Other components and connection relationships are the same as those of the first embodiment.

[0036] Specific implementation method three: Combination Figure 2 and Figure 5This embodiment further includes a rolling unit baffle 211, which is fixed to the end surface of the fixed beam 210, so as to prevent the rolling unit from rolling out or falling off from the matching surface between the movable beam 220 and the fixed beam 210. Other components and connection relationships are the same as those of the first or second embodiment.

[0037] Specific implementation method four: Combination Figures 1 to 4 In this embodiment, the arc-shaped clamping plate 240 is made of spring steel. Furthermore, the arc-shaped clamping plate 240 can be made of leaf springs from scrapped vehicles. This arrangement can, on the one hand, utilize the elasticity and curvature of the leaf spring to better clamp the prefabricated plate, and on the other hand, reduce costs. Other components and connection relationships are the same as those of the first, second or third embodiments.

[0038] Specific implementation method five: Combination Figures 1 to 4 To explain this embodiment, a rubber pad is installed on the arc clamping plate 240 in this embodiment, so as to increase the friction between the arc clamping plate 240 and the prefabricated plate. Other components and connection relationships are the same as those of the specific embodiments one, two, three or four.

[0039] How it works

[0040] Combination Figures 1 to 7 Explain the working principle of the utility model:

[0041] This device is used in conjunction with a loader. Figure 1 and Figure 2 As shown, before using the device, the bucket of the loader is removed, and then the first connecting plate 510 is fixedly connected to the lifting arm of the loader.

[0042] When the prefabricated board is being hoisted, the loader is driven to the front of the mold, the outer mold around the mold is manually removed, and then the direction of the fixed beam 210 is controlled by the hydraulic motor 530 so that the length direction of the fixed beam 210 is parallel to the length direction of the mold, and at the same time, the lifting arm of the loader is lowered until the lower surface of the frame 100 is against the top surface of the prefabricated board. The piston rod of the first hydraulic cylinder 110 is extended, and the two fixed beams 210 are rotated relative to the frame 100, and the arc clamping plate 240 clamps the prefabricated board; the lifting arm of the loader rises to lift several prefabricated boards in a single mold.

[0043] The piston rod of the second hydraulic cylinder 120 extends out, and the two movable beams 220 slide relative to the fixed beam 210. Then the movable beam 220 drives the adjacent slider 230 to slide relative to the fixed beam 210 through the variable pitch chain 320 until the variable pitch chain 320 is tightened, so that the precast panels are relatively separated, and the partition plate between the two adjacent precast panels falls to the ground. Then the piston rod of the second hydraulic cylinder 120 retracts, so that the precast panels are relatively close, and the loader transfers the lifted precast panels to the curing place. This is repeated to complete the work of removing the partition plates and lifting and transporting the concrete precast panels, which brings convenience to the lifting and transportation of large quantities of concrete precast panels.

[0044] The present invention has been disclosed as above in the form of a preferred embodiment, but it is not intended to limit the present invention. Any simple modification, equivalent changes and modifications made to the above implementation cases by any professional and technical personnel who do not deviate from the content of the technical solution of the present invention and based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A device for hoisting and transporting batches of precast concrete panels, characterized in that: It comprises a frame (100), a first hydraulic cylinder (110), a second hydraulic cylinder (120), two connecting plates (130), a lifting connection unit (500) and two groups of clamping arms (200) arranged in a mirror image; Both sets of clamping arms (200) include a variable distance unit, a fixed crossbeam (210), two movable crossbeams (220) and a plurality of slide blocks (230); A plurality of sliders (230) are arranged between two movable crossbeams (220), an arc-shaped clamping plate (240) is installed on the lower surface of the slider (230), and both the movable crossbeam (220) and the slider (230) are slidably connected to the fixed crossbeam (210); The fixed crossbeam (210) is hinged to the frame (100), and the movable crossbeam (220) is hinged to the connecting plate (130); the first hydraulic cylinder (110) is arranged above the frame (100), and the cylinder body and the piston rod of the first hydraulic cylinder (110) are respectively hinged to a fixed crossbeam (210); the second hydraulic cylinder (120) is arranged at 90 degrees to the first hydraulic cylinder (110), and the cylinder body and the piston rod of the second hydraulic cylinder (120) are respectively fixed to the frame (100) and the connecting plate (130); The variable pitch unit comprises a guide rod (310), a variable pitch chain (320) and a plurality of sleeves (330); A plurality of sleeves (330) are sleeved on the guide rod (310), and limit pins are installed at both ends of the guide rod (310); The two ends of the variable pitch chain (320) are respectively fixedly connected to a movable crossbeam (220), the slider (230) and the variable pitch chain (320) are both fixedly connected to the outer circumferential surface of the sleeve (330), and the locking ring on the movable crossbeam (220) and the locking ring on the sleeve (330) are separated by a plurality of locking rings, and the locking rings on two adjacent sleeves (330) are separated by a plurality of locking rings; The lifting connection unit (500) comprises a first connection plate (510), a second connection plate (520), a hydraulic motor (530) and a lifting chain (540); The output shaft of the hydraulic motor (530) is fixedly connected to the first connecting plate (510), the cylinder body of the hydraulic motor (530) is fixedly connected to the second connecting plate (520), and the two ends of the lifting chain (540) are respectively fixedly connected to the fixed crossbeam (210) and the second connecting plate (520).

2. The device for hoisting and transporting batches of precast concrete panels according to claim 1, characterized in that: It also includes a rolling unit, which is arranged between the matching surfaces of the movable crossbeam (220) and the fixed crossbeam (210), and includes a retaining frame (410), on which a plurality of balls (420) are mounted.

3. The device for hoisting and transporting batches of precast concrete panels according to claim 2, characterized in that: It also includes a rolling unit baffle (211), which is fixedly connected to the end surface of the fixed crossbeam (210).

4. The device for hoisting and transporting batches of precast concrete panels according to claim 3 is characterized in that: The material of the arc-shaped clamping plate (240) is spring steel.

5. The device for hoisting and transporting batches of precast concrete panels according to claim 4, characterized in that: A rubber pad is installed on the arc-shaped clamping plate (240).

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