A precast beam hoisting device

Abstract

The utility model relates to precast beam technical field, concretely relates to a precast beam hoisting equipment, the device adopts two -way screw rod drive clamping mechanism, through motor drives two -way screw rod rotation, makes the ball nut push -button movable block linear motion, realizes the synchronous centering of clamp plate, and the stable precision of guiding rod ensures the movement process, and the bump of damper effective buffering clamping of protruding piece cooperation avoids the problem that the precast beam deviates or slips because of the uneven stress of traditional hoisting equipment, and the safety and reliability of hoisting operation are greatly promoted, and the overall structure is combined to form the rigid frame through the support and beam plate, and the strength of connecting part is reinforced by the reinforcing part, and the cooperation design of the lifting plate and the rope makes the hoisting stress evenly dispersed, and the fixed base ensures the firm and reliable connecting point, and this modular design not only is convenient for on -the -spot quick assembly dismounting, but also can adapt to the hoisting demand of different specifications precast beam, and the versatility and construction efficiency of equipment are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of precast beam technology, and in particular to a precast beam hoisting device. Background Technology

[0002] Precast beams are commonly used components in building construction. They are usually manufactured in a factory in advance and then transported to the construction site for installation. These components have advantages such as stable quality and fast construction, and are widely used in the construction of bridges, houses and other buildings. Precast beams are mostly long and narrow, and both ends need reliable support and fixation.

[0003] During construction, precast beams need to be transported and installed using hoisting equipment. Hoisting operations require stability and accuracy to ensure that the beams are not damaged and that construction safety is guaranteed. The traditional hoisting method is to directly tie steel cables to both ends of the precast beams and then lift them with a crane. Although this method is simple, it has obvious defects.

[0004] Traditional steel cable binding hoisting methods are prone to uneven stress on the beam, which may cause swaying or tilting during lifting and moving. Stress concentration is likely to occur at the contact points between the steel cables and the beam, which may cause damage to the beam surface. At the same time, due to the lack of effective positioning and buffering devices, the hoisting process is not stable enough and there are safety hazards. These problems have prompted people to develop safer and more reliable special hoisting equipment for precast beams. Utility Model Content

[0005] The purpose of this utility model is to provide a precast beam hoisting device that solves the safety hazards of the traditional steel cable binding hoisting method.

[0006] To achieve the above objectives, this utility model provides a precast beam hoisting device, including a support frame. Two supports are placed parallel to each other, and a beam plate is fixedly installed between the two supports. Reinforcing members are fixedly installed between the beam plate and the supports. A hanging plate is fixedly installed on the upper side of the beam plate, and a slot is provided at the upper end of the hanging plate. The left and right ends of the hanging plate and the beam plate are connected by ropes, and the ropes are connected to the hanging plate and the beam plate via fixed seats. A precast beam is fixedly installed on the lower side of the support frame, and a clamping mechanism is provided at the lower end of the support frame to fix both ends of the precast beam. The support frame serves as the main support structure of the device, bearing the weight of the entire device and the force during hoisting. The beam plate connects the two supports to form a stable frame. The reinforcing members enhance the connection strength between the beam plate and the support frame to prevent deformation. The hanging plate serves as a hoisting interface for connecting to an external crane. The slot provides a fixed position for the hook to ensure hoisting safety. The ropes share part of the tension during hoisting to maintain balance. The fixed seats ensure a reliable connection between the ropes and the hanging plate and the beam plate to prevent slippage. The precast beam is the target component for the hoisting operation and needs to be stably clamped.

[0007] The clamping mechanism includes a bidirectional lead screw, which is rotatably mounted inside the bracket. The bidirectional lead screw drives the clamping mechanism to open and close through rotational motion.

[0008] The bracket has a motor fixedly mounted at its front end. The output shaft of the motor is connected to a double-acting lead screw via a coupling. The motor provides power output to drive the double-acting lead screw to rotate, and the coupling transmits the motor power while compensating for installation deviations.

[0009] The bidirectional lead screw has two symmetrical ball nuts that are movably mounted on it. Movable blocks are fixed at both ends of the ball nuts. The ball nuts convert the rotational motion of the bidirectional lead screw into linear motion. The movable blocks connect the ball nuts to the clamping plate to transmit clamping force.

[0010] The movable block has two symmetrical through holes, and a clamping plate is fixedly installed at the lower end of the movable block. The through holes, together with the guide rod, ensure the stability of the linear movement of the movable block. The clamping plate directly contacts the precast beam to achieve the clamping function.

[0011] The bidirectional lead screw is fixedly provided with guide rods on both sides. The guide rods pass through the through holes and are fixed inside the bracket. The guide rods restrict the movement trajectory of the movable block to ensure linear movement.

[0012] The clamping plate has several protrusions movably arranged on its inner side. A damper is fixed between the protrusions and the clamping plate. The protrusions increase the contact friction between the clamping plate and the precast beam to prevent slippage, and the damper absorbs the vibration energy during clamping and transportation to protect the precast beam.

[0013] The device employs a bidirectional screw-driven clamping mechanism. A motor drives the bidirectional screw to rotate, causing the ball bearing nut to push the movable block in a linear motion, achieving synchronous centering and clamping of the clamping plates. Guide rods ensure smooth and precise movement, while convex blocks and dampers effectively buffer clamping impacts. This design enables rapid and stable clamping action, avoiding the problems of precast beam displacement or slippage caused by uneven force distribution in traditional hoisting equipment. This significantly improves the safety and reliability of hoisting operations. The overall structure forms a rigid frame through the combination of supports and beams, with reinforcements strengthening the connection points. The coordinated design of the lifting plates and ropes ensures smooth lifting... With evenly distributed force and a fixed base ensuring a firm and reliable connection, this modular design not only facilitates rapid on-site assembly and disassembly but also adapts to the hoisting needs of precast beams of different specifications, significantly improving the equipment's versatility and construction efficiency. The sliding fit between the movable block's through hole and the guide rod ensures the synchronization of the clamping plate's movement. The protrusion can adaptively adjust the contact pressure according to the surface shape of the precast beam, and the damper effectively absorbs vibration energy during hoisting. This flexible clamping method protects the integrity of the precast beam surface and reduces swaying during hoisting, making the positioning and installation of precast beams more precise and convenient. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of the precast beam hoisting equipment according to an embodiment of this utility model.

[0016] Figure 2 This is a schematic diagram of the clamping component structure according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the clamping plate structure according to an embodiment of the present utility model.

[0018] Figure 4 This is a cross-sectional structural diagram of the clamping component according to an embodiment of the present invention.

[0019] 1. Bracket, 2. Beam, 3. Reinforcing component, 4. Hanging plate, 5. Groove, 6. Rope, 7. Fixing seat, 8. Precast beam, 9. Double-acting screw, 10. Coupling, 11. Ball nut, 12. Moving block, 13. Through hole, 14. Guide rod, 15. Clamping plate, 16. Protrusion, 17. Damper, 18. Motor. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Please see Figures 1-4 A precast beam hoisting device includes a support frame 1, consisting of two parallel supports 1. A beam 2 is fixedly installed between the two supports 1. A reinforcing member 3 is fixedly installed between the beam 2 and the support frame 1. A hanging plate 4 is fixedly installed on the upper side of the beam 2. A slot 5 is provided at the upper end of the hanging plate 4. The left and right ends of the hanging plate 4 and the beam 2 are respectively connected by ropes 6. The ropes 6 are connected to the hanging plate 4 and the beam 2 through a fixing seat 7. A precast beam 8 is fixedly installed on the lower side of the support frame 1. A clamping mechanism is provided at the lower end of the support frame 1 to fix the two ends of the precast beam 8. The support frame 1 constitutes the main frame of the device and provides overall support. The beam 2 connects to the support frame 1 to form a stable working platform. The reinforcing member 3 enhances the connection strength between the beam 2 and the support frame 1 to prevent deformation. The hanging plate 4 serves as the hoisting force point and connects to external lifting tools. The slot 5 provides a fixed position for the hook to ensure hoisting safety. The ropes 6 share the hoisting load to maintain the balance of the device. The fixing seat 7 ensures the reliable connection between the ropes 6 and the hanging plate 4 and the beam 2. The precast beam 8 is the building component to be hoisted.

[0022] The clamping mechanism includes a bidirectional lead screw 9. The bidirectional lead screw 9 is rotatably mounted inside the bracket 1. A motor 18 is fixedly mounted at the front end of the bracket 1. The output shaft of the motor 18 is connected to the bidirectional lead screw 9 through a coupling 10. Two symmetrical ball nuts 11 are movably mounted on the bidirectional lead screw 9. Movable blocks 12 are fixedly mounted at the left and right ends of the ball nuts 11. The bidirectional lead screw 9 drives the clamping mechanism to operate through rotational motion. The motor 18 provides rotational power to drive the entire clamping system. The coupling 10 connects the motor 18 and the bidirectional lead screw 9 to transmit power and compensate for installation errors. The ball nuts 11 convert the rotational motion of the bidirectional lead screw 9 into linear motion. The movable blocks 12 connect the ball nuts 11 and the clamping plate 15 to transmit clamping force.

[0023] Two symmetrical through holes 13 are provided on the movable block 12. A clamping plate 15 is fixedly installed at the lower end of the movable block 12. Guide rods 14 are fixedly installed on the left and right sides of the bidirectional lead screw 9. The guide rods 14 pass through the through holes 13 and are fixed inside the bracket 1. Several protrusions 16 are movably arranged on the inner side of the clamping plate 15. A damper 17 is fixedly installed between the protrusions 16 and the clamping plate 15. The through holes 13, in conjunction with the guide rods 14, guide the linear movement of the movable block 12. The clamping plate 15 directly contacts the precast beam 8 to achieve the clamping function. The guide rods 14 ensure that the movable block 12... 2. Moving along a predetermined trajectory, the protrusion 16 increases the contact friction between the clamping plate 15 and the precast beam 8, and the damper 17 absorbs the vibration energy during clamping and transportation to protect the surface of the precast beam 8. By starting the motor 18, the bidirectional lead screw 9 is driven to rotate, and the ball nut 11 converts the rotational motion into the linear motion of the movable block 12, driving the two clamping plates 15 to move towards the center. The guide rod 14 ensures the stability of the motion trajectory. The protrusion 16 on the inner side of the clamping plate 15 clamps the recesses on both sides of the precast beam 8, and the damper 17 plays a buffering and shockproof role during the clamping process.

[0024] Working principle: First, hook the hoist's hook onto the slot 5 on the lifting plate 4. Then, move the entire hoisting device above the precast beam 8 and align the bottom of the bracket 1 with the precast beam 8. Start the motor 18 to drive the double-acting screw 9 to rotate. The ball nut 11 converts the rotational motion into the linear motion of the movable block 12, driving the two clamping plates 15 to move towards the center. The guide rod 14 ensures the stability of the movement trajectory. The protrusions 16 on the inner side of the clamping plate 15 clamp the recesses on both sides of the precast beam 8. The damper 17 plays a buffering and shockproof role during clamping. The reinforcement 3 enhances the connection strength between the beam plate 2 and the bracket 1. The fixed seat 7 ensures the reliability of the connection between the rope 6 and the lifting plate 4 and the beam plate 2. The coupling 10 transmits the output power of the motor 18 to the double-acting screw 9. The through hole 13 of the movable block 12 cooperates with the guide rod 14 to achieve precise guidance. The beam plate 2 maintains the parallel distance between the two brackets 1. After clamping, the precast beam 8 is hoisted to the designated position. The precast beam can be released by rotating the double-acting screw 9 in the opposite direction.

[0025] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.

Claims

1. A precast beam hoisting apparatus comprising a support (1), characterized in that, The bracket (1) consists of two parallel supports, with a beam plate (2) fixedly installed between the two supports (1). A reinforcing member (3) is fixedly installed between the beam plate (2) and the support (1). A hanging plate (4) is fixedly installed on the upper side of the beam plate (2). A slot (5) is opened at the upper end of the hanging plate (4). The left and right ends of the hanging plate (4) and the beam plate (2) are respectively connected by ropes (6). The ropes (6) are connected to the hanging plate (4) and the beam plate (2) through a fixing seat (7). A precast beam (8) is fixedly installed on the lower side of the support (1). A clamping mechanism is provided at the lower end of the support (1) to fix the two ends of the precast beam (8).

2. The precast beam hoisting equipment as described in claim 1, characterized in that, The clamping mechanism includes a bidirectional lead screw (9), and the bracket (1) is rotatably equipped with the bidirectional lead screw (9).

3. The precast beam hoisting equipment as described in claim 1, characterized in that, A motor (18) is fixedly installed at the front end of the bracket (1), and the output shaft of the motor (18) is connected to the double-acting lead screw (9) through a coupling (10).

4. The precast beam hoisting equipment as described in claim 2, characterized in that, Two symmetrical ball nuts (11) are movably arranged on the bidirectional lead screw (9), and movable blocks (12) are fixedly arranged at the left and right ends of the ball nuts (11).

5. The precast beam hoisting equipment as described in claim 4, characterized in that, The movable block (12) has two symmetrical through holes (13), and a clamping plate (15) is fixedly installed at the lower end of the movable block (12).

6. The precast beam hoisting equipment as described in claim 2, characterized in that, Guide rods (14) are fixedly installed on the left and right sides of the bidirectional lead screw (9), and the guide rods (14) pass through the through hole (13) and are fixed inside the bracket (1).

7. The precast beam hoisting equipment as described in claim 5, characterized in that, Several protrusions (16) are movably provided on the inner side of the clamping plate (15), and a damper (17) is fixedly provided between the protrusions (16) and the clamping plate (15).

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