Heavy-load lifting appliance

Abstract

The invention provides a heavy-load lifting appliance, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The heavy-load lifting appliance comprises a cross beam and a machine frame which is connected to the cross beam and can move horizontally along the cross beam, and further comprises a telescopic assembly and a grabbing assembly, the grabbing assembly is located on the lower portion of the machine frame, the telescopic assembly is connected between the machine frame and the grabbing assembly, and the grabbing assembly can move up and down relative to the machine frame under the action of the telescopic assembly. And under the action of the grabbing assembly, the parts or the cargoes can be stably grabbed. The heavy-load lifting appliance is high in stability.

Description

Technical Field

[0001] The invention belongs to the technical field of machinery and relates to a heavy-load lifting device. Background Art

[0002] Heavy Load Lifting Gear is a special equipment used to lift, move and install heavy goods.

[0003] It is widely used in many fields such as construction, bridges, shipbuilding, metallurgy, electric power, port logistics, etc. to ensure the safe transportation and precise installation of large components or equipment.

[0004] Existing heavy-load hoists are usually high-power cranes that rely on motors to reel in wire ropes to carry materials.

[0005] It can be seen that the materials and the wire rope need to be manually bundled, resulting in relatively low operating efficiency and safety hazards. Summary of the invention

[0006] The purpose of the present invention is to provide a heavy-duty lifting device with high stability and compact structure in view of the above problems existing in the prior art.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A heavy-load sling comprises a crossbeam and a frame connected to the crossbeam and capable of translational movement along the crossbeam, wherein the sling further comprises a telescopic assembly and a grabbing assembly, wherein the grabbing assembly is located at the lower part of the frame, and the telescopic assembly is connected between the frame and the grabbing assembly, and under the action of the telescopic assembly, the grabbing assembly can move up and down relative to the frame, and under the action of the grabbing assembly, parts or goods can be stably grabbed.

[0009] The above-mentioned heavy-load lifting device also includes a connecting plate, the lower end of which is fixedly connected to the frame, and the upper end of which is connected to a roller, which rests against the upper part of the crossbeam.

[0010] In the above-mentioned heavy-load lifting device, the upper part of the connecting plate is in an inverted U-shape, the above-mentioned roller is connected to the U-shaped bottom of the connecting plate and the roller rests on the upper part of the beam, and the connecting plate is also provided with auxiliary wheels on both sides of the U-shape, and the two auxiliary wheels rest on both sides of the beam respectively.

[0011] In the above-mentioned heavy-load lifting device, the connecting plate, the roller and the auxiliary wheel form a connecting unit, the number of the connecting units is several, and the several connecting units are evenly distributed along the length direction of the beam.

[0012] In the above-mentioned heavy-load lifting device, the frame includes an upper frame and a lower frame, the upper frame is connected to the crossbeam through a connecting unit, the lower frame is connected to the grabbing assembly, and the telescopic assembly is located between the upper frame and the lower frame.

[0013] In the above-mentioned heavy-load lifting device, the telescopic assembly includes connecting rod one, connecting rod two, connecting rod three and connecting rod four. The middle parts of the connecting rod one and connecting rod two are hinged, the middle parts of the connecting rod three and connecting rod four are hinged, the upper ends of the connecting rod one and the upper ends of the connecting rod two are both movably connected to the upper frame, the lower end of the connecting rod three is movably connected to the lower frame, the lower end of the connecting rod four is hinged to the lower frame, the lower end of the connecting rod is hinged to the upper end of the connecting rod three, and the lower end of the connecting rod two is hinged to the upper end of the connecting rod four.

[0014] In the above-mentioned heavy-load lifting device, the inner side of the lower frame is provided with a recessed guide groove, and the lower end of the above-mentioned connecting rod is connected with a rotatable pulley, and the pulley is embedded in the guide groove.

[0015] In the above-mentioned heavy-load lifting device, the upper frame is in the shape of a square frame, a driving member is fixedly connected to the middle part of the upper frame, and slides that can translate along the upper frame are distributed on both sides of the upper frame. The above-mentioned driving member is connected to the two slides, and after the driving member is actuated, it can drive the two slides to move closer or farther away from each other.

[0016] In the above-mentioned heavy-duty lifting device, the driving member is a double-axis motor, and a screw is fixedly connected to both ends of the rotating shaft of the double-axis motor. The screw is inserted into the corresponding slide plate and the two are threadedly connected, and the threads of the two screws have opposite rotation directions.

[0017] In the above-mentioned heavy-load hoist, the grabbing assembly includes a guide seat, a grab ring, a driving motor and a transmission belt. The grab ring is arc-shaped, the upper part of the guide seat is fixedly connected to the lower frame, the lower part of the guide seat has a guide part matching the inner side of the grab ring, the middle part of the guide seat is connected with a pressure wheel, the two ends of the transmission belt are respectively fixedly connected at the two ends of the grab ring and the transmission belt is attached to the outside of the grab ring, the number of the pressure wheels is several, several pressure wheels are adjacent to the transmission belt and several pressure wheels are distributed along the outside of the grab ring, the driving motor is fixedly connected to the guide seat, a driving wheel is fixedly connected to the rotating shaft of the driving motor, and the transmission belt is sleeved on the driving wheel.

[0018] In the above-mentioned heavy-duty lifting device, both sides of the driving wheel are provided with pressure wheels adjacent thereto.

[0019] In the above-mentioned heavy-load lifting device, the end of the grab ring is provided with a protruding stop edge, and after the grab ring is translated along the guide seat, the stop edge on the grab ring can abut against the guide seat.

[0020] Compared with the prior art, the heavy-duty sling has a relatively high telescopic stability because the first connecting rod and the second connecting rod in the telescopic assembly move synchronously.

[0021] At the same time, the grabbing component is not a traditional opening and closing manipulator, but a rotating arc structure. The grabbing ring can grab parts or materials after rotating. This not only has a simple and compact structure, but also has high grabbing stability and high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of this heavy-duty lifting device.

[0023] Figure 2 It is a structural schematic diagram of the upper frame of this heavy-duty lifting device.

[0024] Figure 3 It is a structural schematic diagram of the lower frame of this heavy-duty lifting device.

[0025] In the figure, 1, cross beam; 2, connecting plate; 3, roller; 4, auxiliary wheel; 5, upper frame; 6, lower frame; 6a, guide groove; 7, connecting rod one; 8, connecting rod two; 9, connecting rod three; 10, connecting rod four; 11, pulley; 12, driving member; 13, slide plate; 14, screw rod; 15, guide seat; 15a, guide part; 16, grab ring; 17, driving motor; 18, transmission belt; 19, pressure wheel; 20, stop edge; 21, driving wheel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0029] like Figure 1and Figure 2 and Figure 3 As shown, the heavy-load sling includes a crossbeam 1 and a frame connected to the crossbeam 1 and capable of translating along the crossbeam 1, and also includes a telescopic assembly and a grabbing assembly. The grabbing assembly is located at the lower part of the frame, and the telescopic assembly is connected between the frame and the grabbing assembly. Under the action of the telescopic assembly, the grabbing assembly can move up and down relative to the frame, and under the action of the grabbing assembly, parts or goods can be stably grabbed.

[0030] The telescopic assembly can change the height position of the grabbing assembly, so that the grabbing assembly can enter the grabbing position and move out of the grabbing position stably.

[0031] The gripping components are used to grip parts or materials stably.

[0032] It also includes a connecting plate 2, the lower end of which is fixedly connected to the frame, and the upper end of which is connected to a roller 3, which abuts against the upper part of the crossbeam 1.

[0033] The upper part of the connecting plate 2 is in an inverted U shape, the roller 3 is connected to the bottom of the U shape of the connecting plate 2 and the roller 3 abuts against the upper part of the beam 1, and auxiliary wheels 4 are provided on both sides of the U shape of the connecting plate 2, and the two auxiliary wheels 4 abut against the two sides of the beam 1 respectively.

[0034] The roller 3 on the connecting plate 2 abuts against the upper part of the cross beam 1, and the two auxiliary wheels 4 abut against the two sides of the cross beam 1. Such a structure can not only stably connect the frame to the cross beam 1, but also enable the frame to translate stably along the cross beam 1.

[0035] Of course, the rack translation is achieved by the power provided by the driving member. This patent application is to solve how to stably grab parts or materials, and how to drive the rack translation is not a technical problem that needs to be solved by this patent application. Therefore, this part of the structure is not repeated in the embodiment.

[0036] The connecting plate 2 , the roller 3 and the auxiliary wheel 4 form a connecting unit. There are several connecting units, and the connecting units are evenly distributed along the length direction of the crossbeam 1 .

[0037] The provision of multiple connection units enables the rack to be stably connected to the crossbeam 1 .

[0038] The frame includes an upper frame 5 and a lower frame 6 , the upper frame 5 is connected to the crossbeam 1 through a connecting unit, the lower frame 6 is connected to the grabbing assembly, and the telescopic assembly is located between the upper frame 5 and the lower frame 6 .

[0039] The upper frame 5 is used for stably connecting to the cross beam 1, and the lower frame 6 is used for connecting the grab assembly. Meanwhile, a telescopic assembly can also be stably arranged between the upper frame 5 and the lower frame 6.

[0040] The telescopic assembly includes a connecting rod 1 7, a connecting rod 2 8, a connecting rod 3 9 and a connecting rod 4 10. The connecting rod 1 7 and the connecting rod 2 8 are hinged in the middle, the connecting rod 3 9 and the connecting rod 4 10 are hinged in the middle, the upper ends of the connecting rod 1 7 and the upper ends of the connecting rod 2 8 are both movably connected to the upper frame 5, the lower end of the connecting rod 3 9 is movably connected to the lower frame 6, the lower end of the connecting rod 4 10 is hinged to the lower frame 6, the lower end of the connecting rod 1 7 is hinged to the upper end of the connecting rod 3 9, and the lower end of the connecting rod 2 8 is hinged to the upper end of the connecting rod 4 10.

[0041] The inner side of the lower frame 6 has a recessed guide groove 6a, and the lower end of the connecting rod 10 is connected to a rotatable pulley 13, and the pulley 13 is embedded in the guide groove 6a.

[0042] The upper frame 5 is in a square frame shape, and a driving member 12 is fixedly connected to the middle of the upper frame 5. Slide plates 13 that can translate along the upper frame are distributed on both sides of the upper frame 5. The driving member 12 is connected to the two slide plates 13. After the driving member 12 is actuated, it can drive the two slide plates 13 to move closer to or away from each other.

[0043] The driving member 12 is a double-shaft motor, and a screw rod 14 is fixedly connected to both ends of the rotating shaft of the double-shaft motor. The screw rod 14 is inserted into the corresponding slide plate 13 and the two are threadedly connected, and the threads of the two screw rods 14 are rotated in opposite directions.

[0044] When the driving member 12 drives the screw rod 14 thereon to rotate, since the two screw rods 14 are respectively threadedly connected to the corresponding slide plates 13, the driving member 12 can drive the slide plate 13 to move.

[0045] Of course, the upper frame 5 is provided with guide rails, and the slide plate 13 is connected to the guide rails.

[0046] Since the two screw rods 14 are respectively located adjacent to the corresponding slide plates 13 and the threads of the two screw rods 14 are in opposite directions, when the two screw rods 14 rotate, the two slide plates 13 will move closer to or away from each other.

[0047] Since the connecting rod 1 7 and the connecting rod 2 8 are respectively connected to the corresponding slide plates 13, the connecting rod 1 7 and the connecting rod 2 8 can swing stably around their hinges.

[0048] Similarly, since the connecting rod three 9 is hinged with the connecting rod one 7, the connecting rod four 10 is hinged with the connecting rod two 8. Therefore, the connecting rod three 9 and the connecting rod four 10 will swing along.

[0049] The length of the entire telescopic component can be lengthened or shortened, and finally the grabbing component can be moved up and down.

[0050] The grabbing assembly includes a guide seat 15, a grab ring 16, a drive motor 17 and a transmission belt 18. The grab ring 16 is arc-shaped. The upper part of the guide seat 15 is fixedly connected to the lower frame 6. The lower part of the guide seat 15 has a guide part 15a matching the inner side of the grab ring 16. The middle part of the guide seat 15 is connected with a pressure wheel 19. The two ends of the transmission belt 18 are respectively fixedly connected to the two ends of the grab ring 16 and the transmission belt 18 is attached to the outer side of the grab ring 16. The number of the pressure wheels 19 is several, and several pressure wheels 19 are adjacent to the transmission belt 18 and several pressure wheels 19 are distributed along the outer side of the grab ring 16. The drive motor 17 is fixedly connected to the guide seat 15. A driving wheel is fixedly connected to the rotating shaft of the drive motor 17, and the transmission belt 18 is sleeved on the driving wheel.

[0051] The grip ring 16 is 3 / 4 of a circle. In an initial state, the middle portion of the grip ring 16 is in contact with the guide portion 15a of the guide seat 15. At this time, the opening of the grip ring 16 faces downward.

[0052] After the driving motor 17 drives the driving wheel 21 to rotate, the driving wheel 21 contacts the transmission belt 18, and the transmission belt 18 is fixedly connected to the grab ring 16, so that the grab ring 16 can be moved.

[0053] After the gripping ring 16 moves, its opening changes from facing downward to facing the side, and the opening of the gripping ring 16 can be stably embedded in the hole position of the part, and finally the part or material can be stably grasped.

[0054] Obviously, the parts or materials that can be grasped by the spreader are limited, that is, only parts or materials with hole structures can be grasped by the spreader, such as steel coils or wheels with a center hole.

[0055] Both sides of the driving wheel 21 are provided with pressure wheels 19 adjacent thereto.

[0056] Under the action of the pressure wheel 19 , the transmission belt 18 can be stably attached to the outer side of the gripping ring, and at the same time, the transmission belt 18 can also stably contact with the driving wheel 21 .

[0057] The gripping ring 16 has a protruding stop edge 20 at its end. After the gripping ring 16 translates along the guide seat 15 , the stop edge 20 thereon can abut against the guide seat 15 .

[0058] Under the action of the stop edge 20 , the grab ring 16 can be prevented from being separated from the guide seat 15 due to excessive movement.

[0059] Since the first connecting rod and the second connecting rod in the telescopic assembly of the heavy-duty lifting device move synchronously, the telescopic stability of the entire telescopic assembly is relatively high.

[0060] At the same time, the grabbing component is not a traditional opening and closing manipulator, but a rotating arc structure. The grabbing ring can grab parts or materials after rotating. This not only has a simple and compact structure, but also has high grabbing stability and high practical value.

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A heavy-load sling, comprising a crossbeam and a frame connected to the crossbeam and capable of translating along the crossbeam, characterized in that: It also includes a telescopic component and a grabbing component. The grabbing component is located at the lower part of the frame. The telescopic component is connected between the frame and the grabbing component. Under the action of the telescopic component, the grabbing component can move up and down relative to the frame. Under the action of the grabbing component, parts or goods can be stably grabbed.

2. The heavy-duty lifting device according to claim 1, characterized in that: It also includes a connecting plate, the lower end of which is fixedly connected to the frame, and the upper end of which is connected to a roller, which abuts against the upper part of the crossbeam.

3. The heavy-duty lifting device according to claim 2, characterized in that: The upper part of the connecting plate is in an inverted U shape, the roller is connected to the bottom of the U shape of the connecting plate and the roller abuts against the upper part of the cross beam, and auxiliary wheels are also provided on both sides of the U shape of the connecting plate, and the two auxiliary wheels abut against both sides of the cross beam respectively.

4. The heavy-duty lifting device according to claim 3, characterized in that: The connecting plate, the roller and the auxiliary wheel form a connecting unit. The number of the connecting units is several and the connecting units are evenly distributed along the length direction of the crossbeam.

5. The heavy-duty lifting device according to claim 4, characterized in that: The frame comprises an upper frame and a lower frame, the upper frame is connected to the crossbeam through a connecting unit, the lower frame is connected to the grabbing assembly, and the telescopic assembly is located between the upper frame and the lower frame.

6. The heavy-duty lifting device according to claim 5, characterized in that: The telescopic assembly includes connecting rod 1, connecting rod 2, connecting rod 3 and connecting rod 4. The middle parts of the connecting rod 1 and connecting rod 2 are hinged, the middle parts of the connecting rod 3 and connecting rod 4 are hinged, the upper ends of the connecting rod 1 and the upper ends of the connecting rod 2 are both movably connected to the upper frame, the lower end of the connecting rod 3 is movably connected to the lower frame, the lower end of the connecting rod 4 is hinged to the lower frame, the lower end of the connecting rod is hinged to the upper end of the connecting rod 3, and the lower end of the connecting rod 2 is hinged to the upper end of the connecting rod 4.

7. The heavy-duty lifting device according to claim 6, characterized in that: The inner side of the lower frame is provided with a concave guide groove, and the lower end of the connecting rod is connected with a rotatable pulley, and the pulley is embedded in the guide groove.

8. The heavy-duty lifting device according to claim 7, characterized in that: The upper frame is in the shape of a square frame, a driving member is fixedly connected to the middle of the upper frame, and slide plates that can translate along the upper frame are distributed on both sides of the upper frame. The driving member is connected to the two slide plates, and the driving member can drive the two slide plates to move closer or farther away from each other after being actuated.

9. The heavy-duty lifting device according to claim 8, characterized in that: The driving member is a double-axis motor, and a screw rod is fixedly connected to both ends of the rotating shaft of the double-axis motor. The screw rod is inserted into the corresponding slide plate and the two are threadedly connected, and the threads of the two screw rods rotate in opposite directions.

10. The heavy-duty lifting device according to claim 9, characterized in that: The grabbing assembly includes a guide seat, a grab ring, a driving motor and a transmission belt. The grab ring is arc-shaped. The upper part of the guide seat is fixedly connected to the lower frame. The lower part of the guide seat has a guiding part that matches the inner side of the grab ring. A pressure wheel is connected to the middle part of the guide seat. The two ends of the transmission belt are respectively fixedly connected to the two ends of the grab ring and the transmission belt is attached to the outer side of the grab ring. There are several pressure wheels, and several pressure wheels are adjacent to the transmission belt and are distributed along the outer side of the grab ring. The driving motor is fixedly connected to the guide seat, and a driving wheel is fixedly connected to the rotating shaft of the driving motor. The transmission belt is sleeved on the driving wheel.

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