Prefabricated component lifting device

Abstract

The present invention relates to the technical field of hoisting equipment, and in particular to an assembled component hoisting device. The device includes a bracket, a force arm is arranged on the top of the bracket, a winding mechanism is arranged on the force arm, a hook is arranged at the bottom of the winding mechanism, and an automatic rope-releasing mechanism is arranged between the winding mechanism and the hook; the present invention controls the operation of the lifting motor to make the wire rope lift the hook upward, and then controls the operation of the rotating motor and the transverse cylinder as needed. When the rotating motor is working, the rotating motor drives the driving gear, and the driving gear drives the driven gear, so that the force arm rotates. When the transverse cylinder is working, if the lifting is carried out from a position close to the support frame, when the lifting motor reels the wire rope, the transverse cylinder pushes the guide rod to move laterally and away from the lifting motor, so that the bottom end of the wire rope can be quickly raised, thereby improving the lifting efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting equipment, in particular to a prefabricated component hoisting device. Background Art

[0002] With the support and promotion of national policies, prefabricated structures will become the main trend of future construction, and the connection between prefabricated parts is an important part of prefabricated structures. Traditional prefabricated parts connection is to directly connect the parts through grooves and cast them in situ, or tie them together with steel bars and cast them with concrete as a whole to connect the prefabricated parts into a whole. People usually use lifting equipment such as cranes or truck cranes to lift and install them. At present, when constructing prefabricated buildings, all prefabricated components need to be lifted by lifting devices.

[0003] When lifting the prefabricated components, it is necessary to bundle the prefabricated components with cables and then lift them with a lifting device. However, with the existing lifting device, after the cables are connected to the prefabricated components for lifting, when the prefabricated components are lowered, after the prefabricated components are completely laid on the ground, the ropes hanging on the hooks of the lifting device cannot fall off in time, and the hooks need to be released and the cables on the hooks need to be removed by personnel before the next lifting can be carried out. The cables cannot fall off automatically, which affects the lifting efficiency.

[0004] Therefore, it is necessary to invent a prefabricated component lifting device to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a prefabricated component lifting device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an assembled component lifting device, comprising a bracket, a force arm is arranged on the top of the bracket, a winding mechanism is arranged on the force arm, a hook is arranged at the bottom of the winding mechanism, and an automatic rope release mechanism is arranged between the winding mechanism and the hook.

[0007] Preferably, the winding mechanism includes a wire rope, a lifting motor, a transverse cylinder and a guide rod. The lifting motor is installed on the rear side of the lever arm, and a guide rod is provided at the end of the transverse cylinder. The top end of the wire rope is wound around the output shaft of the lifting motor, and the bottom end of the wire rope is connected to the hook after passing through the guide rod.

[0008] Preferably, the automatic rope-releasing mechanism includes an upper hemisphere, a lower hemisphere and a connecting spring connecting the two, the upper hemisphere is connected to the bottom end of the wire rope, the lower hemisphere is connected to the hook, a center rod is inserted into the top of the lower hemisphere, the top of the center rod is fixedly connected to the upper hemisphere, a magnetic block is provided at the bottom of the upper hemisphere, a T-shaped rod is connected to the bottom of the magnetic block, the bottom of the T-shaped rod passes through the lower hemisphere, and the bottom end of the T-shaped rod is hinged with an inclined plate, a torsion spring is provided at the hinge, the height of the inclined plate gradually decreases toward the entrance end of the hook, and the lowest end of the hook is higher than the entrance end of the hook, and a notch is provided on the upper surface of the inclined plate.

[0009] Preferably, a driven gear is installed at the tail end of the force arm, a rotating shaft is inserted through the middle of the driven gear, a rotating motor is arranged on the top of the bracket, a driving gear is arranged on the top of the output shaft of the rotating motor, and the driving gear is meshed and matched with the driven gear.

[0010] Preferably, a top plate is provided on the top of the steel wire rope, an annular groove is provided at the bottom of the top plate, a limit plate is provided inside the annular groove, a vertical plate is connected to the bottom of the limit plate for transverse sliding, a transverse spring is connected between the vertical plate and the limit plate, an L-shaped plate is inserted at the bottom of the vertical plate, the L-shaped plate is located at the bottom of the upper surface of the lower hemisphere, and the upper surface of the horizontal section of the L-shaped plate has an arc-shaped surface.

[0011] Preferably, the projections of the arc-shaped surface on the lower surface of the upper hemisphere are all located within the lower surface of the upper hemisphere and do not overlap with the edge.

[0012] Preferably, a horn cover inclined obliquely downward is provided at the outer edge of the top plate, and there are multiple horn covers, which are evenly spaced within a circle with the central axis of the wire rope rod.

[0013] Preferably, the upper surface and the lower surface of the horizontal section of the L-shaped plate are both provided with noise reduction pads made of rubber, and a plurality of concave holes are opened on the surface of the noise reduction pads.

[0014] Preferably, the corners on the upper surface of the inclined plate are rounded and located obliquely downward from the notch to reduce wear on the wire rope.

[0015] Technical effects and advantages of the present invention:

[0016] 1. The present invention controls the operation of the lifting motor to make the wire rope lift the hook upward, and then controls the operation of the rotating motor and the transverse cylinder as needed. When the rotating motor is working, the rotating motor drives the driving gear, and the driving gear drives the driven gear, so that the force arm rotates. When the transverse cylinder is working, if the lifting is carried out from a position close to the support frame, when the lifting motor reels the wire rope, the transverse cylinder pushes the guide rod to move laterally away from the lifting motor, so that the bottom end of the wire rope can be quickly raised, thereby improving the lifting efficiency.

[0017] 2. The present invention can push the lower hemisphere from the bottom through the L-shaped plate, and when hoisting, the lower hemisphere will push the L-shaped plate to move horizontally, driving the vertical plate to compress the horizontal spring until the lower hemisphere moves to the bottom of the horizontal plate. At this time, the horizontal spring will push the vertical plate and the L-shaped plate to move horizontally, so that the arc surface of the L-shaped plate completely enters between the lower hemisphere and the upper hemisphere. When automatically detaching from the cable, the lower hemisphere and the inclined plate rise and return to their original positions. Due to the existence of the L-shaped plate, when the lower hemisphere is pulled up under the action of the restoring force of the connecting spring, the inertia force of the lower hemisphere will not cause the lower hemisphere to rise to a position higher than the bottom end of the inclined plate, thereby ensuring that the cable can automatically detach from the hook smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional schematic diagram of the assembly-type component lifting device of the present invention;

[0020] Figure 2 The present invention Figure 1 A magnified view of part A;

[0021] Figure 3 The present invention Figure 1 A schematic diagram of one of the angles;

[0022] Figure 4 The present invention Figure 3 A magnified view of part B;

[0023] Figure 5 It is a side sectional view of the lower hemisphere of the present invention.

[0024] In the figure: bracket 1, lever arm 2, winding mechanism 3, wire rope 31, lifting motor 32, lateral cylinder 33, guide rod 34, hook 4, automatic rope-releasing mechanism 5, upper hemisphere 51, lower hemisphere 52, connecting spring 53, center rod 54, magnetic block 55, T-bar 56, inclined plate 57, notch 58, driven gear 6, rotating shaft 7, rotating motor 8, driving gear 9, top plate 10, annular groove 11, limit plate 12, vertical plate 13, transverse spring 14, L-shaped plate 15, horn cover 16. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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;

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] The present invention provides Figure 1-5 The assembled component lifting device shown includes a bracket 1, a force arm 2 is arranged on the top of the bracket 1, a winding mechanism 3 is arranged on the force arm 2, a hook 4 is arranged at the bottom of the winding mechanism 3, and an automatic rope release mechanism 5 is arranged between the winding mechanism 3 and the hook 4.

[0028] When in use, the bracket 1 is fixedly installed on the ground. When hoisting the assembled component (hereinafter referred to as the assembly), the assembly can be hung up with a cable first, and then the cable is hung on the hook 4. The winding mechanism 3 lifts the hook 4. After the assembly is hoisted to the specified position and lowered to the ground, the automatic rope release mechanism 5 can quickly detach the pull rope from the hook 4, and there is no need for personnel to remove the cable, thereby improving the hoisting efficiency.

[0029] Refer to the instruction manual Figure 1 The winding mechanism 3 includes a wire rope 31, a lifting motor 32, a traverse cylinder 33 and a guide rod 34. The lifting motor 32 is installed at the rear side of the arm 2, and the guide rod 34 is provided at the end of the traverse cylinder 33. The top of the wire rope 31 is wound on the output shaft of the lifting motor 32, and the bottom of the wire rope 31 is connected to the hook 4 after passing through the guide rod 34. A driven gear 6 is installed at the tail end of the arm 2, and a rotating shaft 7 is inserted through the middle of the driven gear 6. A rotating motor 8 is provided at the top of the bracket 1, and a driving gear 9 is provided at the top of the output shaft of the rotating motor 8. The driving gear 9 is meshed and matched with the driven gear 6.

[0030] The hoisting process is as follows: by controlling the lifting motor 32 to work, the wire rope 31 lifts the hook 4 upward, and then the rotating motor 8 and the transverse cylinder 33 are controlled to work as needed. When the rotating motor 8 is working, the rotating motor 8 drives the driving gear 9, and the driving gear 9 drives the driven gear 6, thereby rotating the lever 2. When the transverse cylinder 33 is working, if the hoisting is performed from a position close to the bracket 1, when the lifting motor 32 reels the wire rope 31, the transverse cylinder 33 pushes the guide rod 34 to move laterally and away from the lifting motor 32, so that the bottom end of the wire rope 31 can be quickly raised, thereby improving the lifting efficiency.

[0031] Refer to the instruction manual Figure 1-5 The automatic rope-releasing mechanism 5 includes an upper hemisphere 51, a lower hemisphere 52 and a connecting spring 53 connecting the two. The upper hemisphere 51 is connected to the bottom end of the wire rope 31, and the lower hemisphere 52 is connected to the hook 4. A center rod 54 is inserted at the top of the lower hemisphere 52, and the top of the center rod 54 is fixedly connected to the upper hemisphere 51. A magnetic block 55 is arranged at the bottom of the upper hemisphere 51, and a T-shaped rod 56 is connected to the bottom of the magnetic block 55. The bottom end of the T-shaped rod 56 passes through the lower hemisphere 52, and the bottom end of the T-shaped rod 56 is hinged with an inclined plate 57, and a torsion spring is arranged at the hinge. The height of the inclined plate 57 gradually decreases toward the entrance end of the hook 4, and the lowest end of the hook 4 is higher than the entrance end of the hook 4. A notch 58 is arranged on the upper surface of the inclined plate 57.

[0032] The working process of the automatic rope-release mechanism 5 is as follows: the cable is hung at the notch 58 on the inclined plate 57. When the lifting wire rope 31 rises, the gravity of the assembly will cause the cable to press down the free end of the inclined plate 57, so that the free end, i.e., the lower end, of the inclined plate 57 is lower than the entrance end of the hook 4. The cable slides from the notch 58 to the free end of the inclined plate 57 and is blocked by the hook 4. When the lifting continues, the gravity of the assembly will keep the inclined plate 57 stationary, and the hook 4, the upper hemisphere 51 and the lower hemisphere 52 will rise. The inclined plate 57 and the T-bar 56 will move downward relative to the upper hemisphere 51 and the lower hemisphere 52. After the top end of the T-bar 56 reaches the lower hemisphere 52, the bottom end of the T-bar 56 is connected to the inclined plate 57 and reaches the bottom end of the hook 4. Then, when the lifting continues, the lower hemisphere 52 and the upper hemisphere 52 are connected. The distance between the balls 51 gradually increases, and the connecting spring 53 is stretched. When the bottom end of the T-bar 56 is close to the upper surface of the lower hemisphere 52, the cable and the assembly are lifted. After the lifting is completed, the assembly is completely lowered to the ground, and the torsion spring drives the inclined plate 57 to be in the initial tilted state again, and the T-bar 56 is attracted by the magnetic block 55 and rises, driving the free end of the inclined plate 57 to rise to a position above the top of the entrance end of the hook 4, and the cable automatically slides out of the hook 4 from the inclined plate 57, realizing the automatic detachment of the cable, thereby improving the lifting efficiency. The restoring force of the connecting spring 53 is less than the magnetic force of the magnetic block 55 on the T-bar 56. When the inclined plate 57 reaches the initial position, the connecting spring 53 drives the lower hemisphere 52 back to the initial position, making it easier for the cable to slide out of the hook 4.

[0033] Refer to the instruction manual Figure 3-4 A top plate 10 is provided on the top of the steel wire rope 31, and an annular groove 11 is opened at the bottom of the top plate 10. A limit plate 12 is arranged inside the annular groove 11. A vertical plate 13 is connected to the bottom of the limit plate 12 for transverse sliding. A transverse spring 14 is connected between the vertical plate 13 and the limit plate 12. An L-shaped plate 15 is inserted at the bottom of the vertical plate 13. The L-shaped plate 15 is located at the bottom of the upper surface of the lower hemisphere 52, and the upper surface of the horizontal section of the L-shaped plate 15 has an arc surface. The transverse spring 14 faces the center of the top plate 10, and the maximum thickness of the horizontal section of the L-shaped plate 15 is the same as the distance between the lower hemisphere 52 and the upper hemisphere 51. The projection of the arc surface on the lower surface of the upper hemisphere 51 is all located in the lower surface of the upper hemisphere 51 and does not overlap with the edge.

[0034] When the hanging hook 4 is transferred from the end point to the starting point for a new assembly position, due to the existence of the connecting spring 53, the lower hemisphere 52 will vibrate due to inertia, so the L-shaped plate 15 can push the lower hemisphere 52 from the bottom, and when lifting, the lower hemisphere 52 will push the L-shaped plate 15 to move horizontally, driving the vertical plate 13 to compress the horizontal spring 14 until the lower hemisphere 52 moves to the bottom of the horizontal plate. At this time, the horizontal spring 14 will push the vertical plate 13 and the L-shaped plate 15 to move horizontally, so that the arc surface of the L-shaped plate 15 completely enters between the lower hemisphere 52 and the upper hemisphere 51. When the automatic release When the lower hemisphere 52 and the inclined plate 57 rise and return to their original positions when leaving the cable, due to the presence of the L-shaped plate 15, when the lower hemisphere 52 is pulled up by the restoring force of the connecting spring 53, the inertia force of the lower hemisphere 52 will not cause the lower hemisphere 52 to rise to a position higher than the bottom end of the inclined plate 57, thereby ensuring that the cable automatically and smoothly detaches from the hook 4. At the same time, due to the presence of the limit plate 12, the limit plate 12 can rotate in the annular groove 11, thereby driving the L-shaped plate 15 to rotate, so that the contact position between the L-shaped plate 15 and the lower hemisphere 52 changes, preventing the L-shaped plate 15 from wearing out the same position of the lower hemisphere 52 due to long-term use.

[0035] Refer to the instruction manual Figure 4 A horn cover 16 inclined obliquely downward is provided at the outer edge of the top plate 10. There are multiple horn covers 16, which are evenly spaced in a circle with the central axis of the wire rope 31.

[0036] When the hook 4 swings due to inertia during the transfer process, the horn cover 16 will swing along with the hook 4 and the top plate 10. When the horn cover 16 tilted downward is toward the horizontal direction, the resistance of the horn cover 16 during movement becomes greater, thereby reducing the swing amplitude of the hook 4.

[0037] Refer to the instruction manual Figure 4The upper and lower surfaces of the horizontal section of the L-shaped plate 15 are both provided with noise reduction pads made of rubber, and a plurality of concave holes are opened on the surface of the noise reduction pads.

[0038] The noise reduction pad can reduce the noise generation when the connecting spring 53 drives the lower hemisphere 52 to rise and squeeze the L-shaped plate 15. The concave holes on its surface can not only make the noise reduction pad easier to deform, but also seal the generated noise in the concave holes, thereby improving the noise reduction effect.

[0039] Refer to the instruction manual Figure 4 The corners of the upper surface of the inclined plate 57 are chamfered and located at a position obliquely downward from the notch 58 to reduce wear on the wire rope 31.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled component lifting device, comprising a bracket (1), a force arm (2) is arranged on the top of the bracket (1), a winding mechanism (3) is arranged on the force arm (2), and a hook (4) is arranged at the bottom of the winding mechanism (3), characterized in that: An automatic rope-releasing mechanism (5) is provided between the winding mechanism (3) and the hook (4); The winding mechanism (3) comprises a steel wire rope (31), a lifting motor (32), a transverse cylinder (33) and a guide rod (34); the lifting motor (32) is mounted on the rear side of the lever arm (2), and a guide rod (34) is provided at the end of the transverse cylinder (33); the top end of the steel wire rope (31) is wound around the output shaft of the lifting motor (32), and the bottom end of the steel wire rope (31) is connected to the hook (4) after passing through the guide rod (34); The automatic rope-releasing mechanism (5) comprises an upper hemisphere (51), a lower hemisphere (52) and a connecting spring (53) connecting the upper hemisphere (51) and the lower hemisphere (52). The upper hemisphere (51) is connected to the bottom end of the steel wire rope (31), and the lower hemisphere (52) is connected to the hook (4). A center rod (54) is inserted into the top of the lower hemisphere (52), and the top end of the center rod (54) is fixedly connected to the upper hemisphere (51). A magnetic block (55) is arranged at the bottom of the upper hemisphere (51), and a T-shaped rod (56) is connected to the bottom of the magnetic block (55). The bottom end of the T-shaped rod (56) passes through the lower hemisphere (52), and an inclined plate (57) is hinged at the bottom end of the T-shaped rod (56). A torsion spring is arranged at the hinge. The height of the inclined plate (57) gradually decreases toward the entrance end of the hook (4), and the lowest end of the hook (4) is higher than the entrance end of the hook (4). A notch (58) is arranged on the upper surface of the inclined plate (57).

2. The assembly-type component hoisting device according to claim 1, characterized in that: A driven gear (6) is installed at the rear end of the force arm (2), a rotating shaft (7) is inserted through the middle of the driven gear (6), a rotating motor (8) is arranged on the top of the bracket (1), a driving gear (9) is arranged on the top of the output shaft of the rotating motor (8), and the driving gear (9) is meshed and matched with the driven gear (6).

3. The assembly-type component hoisting device according to claim 1, characterized in that: A top plate (10) is arranged on the top of the steel wire rope (31), an annular groove (11) is provided on the bottom of the top plate (10), a limit plate (12) is arranged inside the annular groove (11), a vertical plate (13) is slidably connected to the bottom of the limit plate (12) in a transverse manner, a transverse spring (14) is connected between the vertical plate (13) and the limit plate (12), an L-shaped plate (15) is inserted into the bottom of the vertical plate (13), the L-shaped plate (15) is located at the bottom of the upper surface of the lower hemisphere (52), and the upper surface of the horizontal section of the L-shaped plate (15) has an arc surface.

4. The assembly-type component hoisting device according to claim 3 is characterized in that: The projections of the arc-shaped surface on the lower surface of the upper hemisphere (51) are all located within the lower surface of the upper hemisphere (51) and do not overlap with the edge.

5. The assembly-type component hoisting device according to claim 1, characterized in that: A horn cover (16) inclined obliquely downward is arranged at the outer edge of the top plate (10), and the horn covers (16) are multiple in number and are evenly spaced within a circle with the central axis of the steel wire rope (31) rod.

6. The assembly-type component hoisting device according to claim 3 is characterized in that: The upper surface and the lower surface of the horizontal section of the L-shaped plate (15) are both provided with noise reduction pads made of rubber, and the surface of the noise reduction pads is provided with a plurality of concave holes.

7. The assembly-type component hoisting device according to claim 1, characterized in that: The corners of the upper surface of the inclined plate (57) are rounded and located at a position obliquely downward from the notch (58) to reduce wear on the steel wire rope (31).

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