A beam and slab installation hoist for dock construction

Abstract

The present invention relates to the field of lifting equipment, and discloses a beam-slab installation hoist for dock construction, comprising: a lifting frame; a connecting frame arranged at the bottom of the lifting frame; a plurality of lifting claws arranged on the lifting frame, the lifting claws can be slidably connected to the lifting frame, and the lifting claws move in parallel; a protruding bar arranged on one side of the lifting claw, the protruding bar can be slidably connected to the lifting frame, and the protruding bar moves vertically; the lifting equipment is connected through a traction rope arranged on the lifting frame, so that the lifting frame can be accurately positioned above the beam slab and cover the beam slab. This design ensures the smooth progress of subsequent lifting operations, reduces positioning errors, and improves the accuracy of operations. After the crane releases the traction rope, the lifting frame can be automatically sleeved on the beam slab. The lifting claws are evenly distributed on both sides of the beam slab, and through the gravity of the lifting frame, it is ensured that the lifting frame can naturally approach the beam slab. This process has a high degree of automation, reduces the risk of manual operation, and improves work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting equipment, and in particular to a beam and slab installation hoist for dock construction. Background Art

[0002] During the wharf construction process, the installation of beams and slabs is an important part of the structural construction. Beams and slabs are important components of the wharf structure. They carry the load of the superstructure and transfer it to the lower foundation. Therefore, the installation quality of beams and slabs is directly related to the safety and service life of the overall wharf structure. In the traditional construction process, beams and slabs are usually hoisted by lifting equipment.

[0003] In traditional wharf construction, the lifting and installation of beams and slabs mostly rely on general hoists and lifting equipment. However, due to the heavy weight and long size of beams and slabs, traditional general hoists usually lack the design for beams and slabs, especially in terms of bottom support, which often only rely on simple slings or hooks and cannot provide sufficient support. This deficiency causes the beams and slabs to tilt or sink easily during the lifting process. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a beam and slab installation hanger for dock construction, aiming to alleviate the above-mentioned problems at least to a certain extent.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A beam and slab installation hoist for dock construction, comprising:

[0007] Lifting frame;

[0008] A connecting frame arranged at the bottom of the hanging frame;

[0009] A plurality of lifting claws are arranged on the hanging frame, the lifting claws are slidably connected to the hanging frame, and the lifting claws move in parallel;

[0010] A protruding bar provided on one side of the hanging claw, the protruding bar being slidably connected to the hanging frame, and the protruding bar moving vertically;

[0011] A traction rope provided on the hanging frame;

[0012] A first moving component provided between the protruding strip and the connecting frame, used to move the position of the lifting claw, wherein the first moving component can move the position of the lifting claw when the hanging frame moves close to the connecting frame, and the lifting claw moves toward the beam plate;

[0013] A second moving component provided between the hanging claw and the protruding strip, used to move the position of the protruding strip, wherein the second moving component can move the position of the protruding strip when the hanging claw moves, and the protruding strip moves downward;

[0014] Wherein, the traction rope can limit the position of the connecting frame when the hanging frame is towed.

[0015] Preferably, the lifting frame includes two cross beams, the lifting claws are slidably connected to the cross beams, two longitudinal beams are connected between the two cross beams, the connecting frame is slidably connected to the longitudinal beams, a traction beam is connected between the two longitudinal beams, and the traction rope is connected to the traction beam.

[0016] Preferably, the first movable part includes a connecting rod slidably connected to the cross beam, the bottom of the connecting rod is connected to the connecting frame, the connecting rod is connected to a first rack, the longitudinal beam is connected to a lead screw, the lifting claw is connected to the lead screw, and the lead screw is connected to a first gear meshing with the first rack.

[0017] Preferably, the second movable component includes a connecting groove opened on the crossbeam, a second gear is rotatably connected in the connecting groove, the lead screw extends into the connecting groove and is connected to the second gear, and a second rack meshing with the second gear is connected to the protruding strip.

[0018] Preferably, a connecting rod is connected to the top of the connecting frame, the connecting rod is slidably connected to the longitudinal beam, and the top of the connecting rod extends to the top of the longitudinal beam and is connected to a first spring.

[0019] Preferably, the longitudinal beam is connected to a guide shaft, the traction beam is slidably connected to a traction frame, the traction rope passes around the guide shaft and is connected to the traction frame, the traction frame is connected to a limit strip, and the connecting rod is provided with a plurality of limit slots adapted to the limit strip.

[0020] Preferably, a second spring is connected between the traction frame and the longitudinal beam.

[0021] Preferably, a third gear is connected to the crossbeam, and a third rack meshing with the third gear is connected to the traction frame.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] 1. Accurate positioning and coverage of the hoisting frame:

[0024] The lifting equipment is connected by the traction rope set on the lifting frame, so that the lifting frame can be accurately positioned above the beam plate and cover the beam plate. This design ensures the smooth progress of subsequent lifting operations, reduces positioning errors, and improves the accuracy of operations.

[0025] 2. Automatic installation of the hoisting frame:

[0026] After the crane releases the traction rope, the hoisting frame can be automatically placed on the beam plate. The lifting claws are evenly distributed on both sides of the beam plate, and the gravity of the hoisting frame ensures that the hoisting frame can naturally approach the beam plate. This process is highly automated, reducing the risk of manual operation and improving work efficiency.

[0027] 3. Automatic grabbing function of the lifting claw:

[0028] When the hoisting frame approaches the connecting frame, the first moving part drives the lifting claw to approach the two sides of the beam plate. The lateral part of the lifting claw is inserted into the gap between the beam plate and the ground, ensuring that the lifting claw can firmly grasp the beam plate and provide sufficient support for the bottom of the beam plate. This design enables the lifting claw to automatically adjust its position to adapt to beam plates of different sizes, improving adaptability and grasping stability.

[0029] 4. Height adjustment of the protruding strip:

[0030] The second moving part controls the movement of the protruding strip so that its bottom height is lower than the lifting claw and the beam plate, ensuring that when the traction rope is reeled in, the position of the connecting frame is restricted to prevent the lifting claw and the protruding strip from resetting and avoid affecting the subsequent lifting work. This design further improves the stability of the device and ensures that the lifting claw will not deviate during the lifting process.

[0031] 5. Automatically adapt to beams and slabs of different sizes:

[0032] Through the first moving part, the lifting claw can automatically move toward the beam plate, and the length of the lifting claw is set within a predetermined range, so that the sling can adapt to beam plates of different lengths and thicknesses. This adaptive design not only enhances the flexibility of the device, but also reduces the frequency of replacing or adjusting the sling.

[0033] 6. Automatic release of beam and slab function:

[0034] After the lifting and transportation work is completed, the crane releases the traction rope. Under the gravity of the lifting frame and the beam plate, the protruding bar touches the ground before the lifting claw, so that the entire device is temporarily supported by the protruding bar. At this time, the position of the connecting frame is no longer restricted, and the lifting claw can automatically leave the beam plate to achieve the purpose of automatically releasing the beam plate. This function improves the automation level of the equipment, reduces manual intervention, and improves the safety and efficiency of operation.

[0035] 7. Multiple stability guarantees:

[0036] The position of the lifting claw and the protruding strip is fixed when the traction rope pulls the lifting frame, ensuring the stability and safety of the beam during the lifting process. The lifting claw will not shift, providing continuous support for the beam, adapting to the complex needs of various construction environments.

[0037] Through these designs, the hoisting frame not only improves the hoisting efficiency of beams and slabs, but also enhances the automation and adaptability of the device, ensuring operational stability and safety under different construction conditions. The automatic grabbing and releasing function reduces the workload of operators and reduces construction risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 It is a front view schematic diagram of the overall structure of the present invention;

[0040] Figure 3 It is a schematic diagram of the structure of the hanging frame of the present invention;

[0041] Figure 4 It is a schematic diagram of the traction beam structure of the present invention;

[0042] Figure 5 It is a schematic diagram of the structure of the connecting frame of the present invention;

[0043] Figure 6 It is a schematic diagram of the structure of the protruding strip of the present invention;

[0044] Figure 7 It is a schematic diagram of the structure of the lifting claw of the present invention.

[0045] Reference numerals:

[0046] 100, lifting frame; 101, connecting frame; 102, lifting claw; 103, protruding strip; 104, traction rope;

[0047] 200, cross beam; 201, longitudinal beam; 202, traction beam;

[0048] 300, connecting rod; 301, first rack; 302, lead screw; 303, first gear;

[0049] 400, connecting groove; 401, second gear; 402, second rack; 403, connecting rod; 404, first spring;

[0050] 500, guide shaft; 501, traction frame; 502, limit bar; 503, limit groove; 504, second spring; 505, third gear; 506, third rack. DETAILED DESCRIPTION

[0051] 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.

[0052] refer to Figure 1-Figure 7 , a beam and slab installation hoist for dock construction, comprising:

[0053] Lifting frame 100;

[0054] A connecting frame 101 disposed at the bottom of the hanging frame 100;

[0055] A plurality of lifting claws 102 are provided on the hanging frame 100, and the lifting claws 102 are slidably connected to the hanging frame 100, and the lifting claws 102 move in parallel;

[0056] A protruding strip 103 is provided on one side of the hanging claw 102, and the protruding strip 103 is slidably connected to the hanging frame 100, and the protruding strip 103 moves vertically;

[0057] A traction rope 104 provided on the hanging frame 100;

[0058] A first moving component provided between the protruding strip 103 and the connecting frame 101, used to move the position of the lifting claw 102, the first moving component can move the position of the lifting claw 102 when the hanging frame 100 moves close to the connecting frame 101, and the lifting claw 102 moves toward the beam plate;

[0059] A second moving component disposed between the hanging claw 102 and the protruding strip 103, used to move the position of the protruding strip 103, the second moving component can move the position of the protruding strip 103 when the hanging claw 102 moves, and the protruding strip 103 moves downward;

[0060] The traction rope 104 can limit the position of the connecting frame 101 when the hoisting frame 100 is towed;

[0061] By setting up the hoisting frame 100, when in use, the traction rope 104 set on the hoisting frame 100 can be connected to the lifting equipment. When hoisting, the hoisting frame 100 can be placed above the beam plate that needs to be hoisted and transported, and the position of the hoisting frame 100 is appropriately adjusted. This step ensures that the hoisting frame 100 can accurately cover the beam plate, thereby laying the foundation for subsequent hoisting operations. The crane releases the traction rope 104 to allow the hoisting frame 100 to be sleeved on the beam plate. The multiple lifting claws 102 set on the hoisting frame 100 form two groups, and the two groups of lifting claws 102 are distributed on both sides of the beam plate. After the hoisting frame 100 is placed on the beam plate, the traction rope 104 no longer bears the load, and the connecting frame 101 set at the bottom of the hoisting frame 100 can contact the upper surface of the beam plate. After the cable 104 is relaxed, the connection frame 101 remains in position after contacting the beam slab, while the hanging frame 100 can move close to the connection frame 101 under the action of its own gravity. The distance between the connection frame 101 and the hanging frame 100 gradually shortens. At this time, the first moving component can move the position of the lifting claw 102 when the hanging frame 100 moves close to the connection frame 101, and the lifting claws 102 located on both sides of the beam slab gradually move close to the beam slab until the lifting claws 102 contact the beam slab, and the horizontal part of the bottom of the lifting claw 102 can be inserted into the gap between the beam slab and the ground. This process ensures that the lifting claw 102 can firmly grasp both sides of the beam slab. When the lifting claw 102 moves toward the beam slab, the second moving component can move the position of the protruding strip 103. The protruding strip 103 can move downward to make its bottom height lower than the lifting claw 102 and the beam plate. The operator can use the lifting equipment to reel in the traction rope 104. Before the traction force of the traction rope 104 acts on the lifting frame 100, the position of the connecting frame 101 can be limited to ensure the current position of the connecting frame 101, so as to prevent the lifting claw 102 and the protruding strip 103 from producing a reset movement and affecting the subsequent lifting work. After the position of the connecting frame 101 is limited, the positions of the lifting claw 102 and the protruding strip 103 are fixed. As the traction rope 104 pulls the lifting frame 100 to move, the bottom of the beam plate can also contact the lifting claw 102. At this time, both sides of the beam plate can be gripped by the lifting claw 102, providing sufficient support force for the bottom of the beam plate. When the lifting claw 102 is moved to the beam plate, the position of the lifting claw 102 is restricted and will not be offset, thereby achieving the purpose of automatic grasping. Compared with the prior art that uses hooks to retrieve, the present application can achieve a good lifting effect on the beam plate. In addition, the first moving component is used to allow the lifting claw 102 to move toward the beam plate, which can adapt to beam plates of different lengths and enhance the adaptability. The length of the lifting claw 102 is set within a predetermined range, and the position restriction of the connecting frame 101 can also adapt to beam plates of different thicknesses and further enhance the adaptability. After the lifting and transportation work is completed, when the beam plate needs to be released, due to the setting of the second moving component, during the movement of the lifting claw 102 toward the beam plate, the bottom height of the protruding strip 103 will be lower than the beam plate and the lifting claw 102, that is,After the crane uses the traction rope 104 to transfer the hoisting frame 100 and the beam plate to the predetermined position, the protruding strip 103 will contact the ground with the beam plate before the lifting claw 102, and the entire device is temporarily supported by the protruding strip 103. When the traction rope 104 is released and no longer tows the hoisting frame 100, the position of the connecting frame 101 is no longer restricted. With the self-gravity of the hoisting frame 100 and the beam plate, the position of the protruding strip 103, the lifting claw 102, and the connecting plate gradually reset and move, and the lifting claw 102 can leave the beam plate, achieving the purpose of automatically releasing the beam plate.

[0062] As a further solution of the present invention, the hoisting frame 100 includes two cross beams 200, the lifting claw 102 is slidably connected to the cross beams 200, two longitudinal beams 201 are connected between the two cross beams 200, the connecting frame 101 is slidably connected to the longitudinal beams 201, a traction beam 202 is connected between the two longitudinal beams 201, and the traction rope 104 is connected to the traction beam 202;

[0063] By providing the longitudinal beam 201, the connection between the two cross beams 200 and the two longitudinal beams 201 provides a higher structural stability. The longitudinal beams 201 make the hoisting frame 100 more stable in structure. The traction rope 104 is connected to the traction beam 202, so that the traction rope 104 can evenly distribute the traction force, ensuring that the hoisting frame 100 remains balanced and stable during the hoisting process. When the lifting equipment is operated by the traction rope 104, the traction beam 202 can transmit the force to various parts of the hoisting frame 100, making the hoisting process more stable.

[0064] As a further solution of the present invention, the first moving part includes a connecting rod 300 slidably connected to the crossbeam 200, the bottom of the connecting rod 300 is connected to the connecting frame 101, the connecting rod 300 is connected to a first rack 301, the longitudinal beam 201 is connected to a lead screw 302, the hanging claw 102 is connected to the lead screw 302, and the lead screw 302 is connected to a first gear 303 meshing with the first rack 301;

[0065] By setting the connecting rod 300, when the hoisting frame 100 is placed on the beam plate, when the hoisting frame 100 moves downward toward the connecting frame 101 due to its own gravity, the first rack 301 and the first gear 303 can be used to rotate the lead screw 302. The rotation of the lead screw 302 is transmitted through the thread, and the rotational motion is converted into linear motion, thereby pushing the lifting claw 102 to slide on the beam 200. As the lead screw 302 rotates, the lifting claw 102 gradually approaches the beam plate, and finally contacts the beam plate to form a stable clamping force. This process utilizes the advantages of mechanical transmission to achieve automatic movement and precise positioning of the lifting claw 102. The lead screw 302 can adapt to different beam plate thickness and material requirements, thereby enhancing the applicability of the equipment. In addition, the automated clamping process reduces the technical requirements for operators, making the equipment easier to operate and maintain. The automated movement and clamping mechanism greatly shortens the construction time, while ensuring the high quality and consistency of the hoisting process. Compared with the traditional manual adjustment method, this mechanical linkage design greatly improves construction efficiency and reduces construction risks.

[0066] As a further solution of the present invention, the second moving component includes a connecting groove 400 provided on the crossbeam 200, a second gear 401 is rotatably connected in the connecting groove 400, a lead screw 302 extends into the connecting groove 400 and is connected to the second gear 401, and a second rack 402 meshing with the second gear 401 is connected to the protruding strip 103;

[0067] By setting the second gear 401, when the screw 302 rotates to move the claw 102, the second gear 401 and the second rack 402 can move the protruding bar 103 downward. The protruding bar 103 moves downward and can protrude from the beam and the claw 102. When the position of the connecting frame 101 is restricted, the protruding bar 103 can support the entire device. When the position of the connecting frame 101 is no longer restricted, the weight of the entire device and the weight of the beam can be used to reset the claw 102 through the second rack 402 and the second gear 401, thereby achieving the purpose of automatically releasing the grip.

[0068] As a further solution of the present invention, a connecting rod 403 is connected to the top of the connecting frame 101, and the connecting rod 403 is slidably connected to the longitudinal beam 201. The top of the connecting rod 403 extends to the top of the longitudinal beam 201 and is connected to a first spring 404.

[0069] By setting the connecting rod 403, the connecting rod 403 can connect the connecting frame 101 with the longitudinal beam 201, and the first spring 404 can support the position of the connecting rod 403 and the connecting frame 101 to ensure that in the initial state, there is a certain movement distance between the connecting frame 101 and the hanging frame 100. After the hanging is completed, the first spring 404 will restore the connecting frame 101 and the connecting rod 403 to the initial state under the action of the reaction force. This process not only ensures that the movement distance between the connecting frame 101 and the hanging frame 100 is restored, but also prepares for the next hanging operation, thereby realizing the automatic reset function of the equipment. The advantage of this structural design is that it can automatically adjust the position of the connecting frame 101 without additional operation, ensuring the smoothness of the hanging process, and providing strong support for the automatic operation and efficient operation of the device.

[0070] As a further solution of the present invention, a guide shaft 500 is connected to the longitudinal beam 201, a traction frame 501 is slidably connected to the traction beam 202, the traction rope 104 bypasses the guide shaft 500 and is connected to the traction frame 501, the traction frame 501 is connected to a limit bar 502, and a plurality of limit grooves 503 adapted to the limit bar 502 are opened on the connecting rod 300;

[0071] By setting the traction frame 501, the traction frame 501 has a preset distance with the longitudinal beam 201 in the initial state, and the limit bar 502 has a preset distance with the connecting rod 300. After the hoisting frame 100 is placed on the beam plate and the lifting claw 102 contacts the side wall of the beam plate, the crane reels in the traction rope 104, and the traction rope 104 will first pull the traction frame 501 to slide on the traction beam 202 until the traction frame 501 contacts the longitudinal beam 201. At this time, the set limit rod can be clamped in a corresponding limit groove 503 on the connecting rod 300. This design can achieve the purpose of limiting the position of the connecting frame 101, and uses the weight of the lifting frame 100 and the beam to limit the connecting rod 300 and the connecting frame 101, thereby ensuring stability during the lifting process. This limiting mechanism prevents the connecting frame 101 from moving unnecessary during the lifting process, further improving the safety of the operation. In addition, after the traction rope 104 pulls the traction frame 501, when lifting the beam, the guide shaft 500 can also share a part of the traction force, which can make the force distribution more even.

[0072] As a further solution of the present invention, a second spring 504 is connected between the traction frame 501 and the longitudinal beam 201;

[0073] By setting the second spring 504, the second spring 504 can limit the initial position of the traction frame 501. When the traction rope 104 pulls the traction frame 501 to limit the position of the connecting rod 300 and the connecting frame 101, the second spring 504 is compressed to generate potential energy. When the beam plate is about to be released later, the traction rope 104 is released. When it is relaxed, the second spring 504 can release the potential energy to allow the traction frame 501 to reset and move, and the limiting rod can be separated from the limiting mouth, thereby achieving the purpose of canceling the position restriction of the connecting frame 101 and realizing the automatic release of the beam plate.

[0074] As a further solution of the present invention, a third gear 505 is connected to the crossbeam 200, and a third rack 506 meshing with the third gear 505 is connected to the traction frame 501;

[0075] By providing the third gear 505 and the third rack 506, when the traction rope 104 pulls the traction frame 501, the meshing action of the third rack 506 and the third gear 505 can make the two opposite traction frames 501 move synchronously. This design ensures that the traction frame 501 maintains balance during movement, avoids deviation or tilting caused by excessive force on one side, and thus improves the stability and safety of the overall lifting operation.

Claims

1. A beam and slab installation hanger for dock construction, characterized in that: include: Lifting frame (100); A connecting frame (101) provided at the bottom of the hanging frame (100); A plurality of lifting claws (102) are provided on the lifting frame (100), the lifting claws (102) are slidably connected to the lifting frame (100), and the lifting claws (102) move in parallel; a protruding strip (103) provided on one side of the hanging claw (102), the protruding strip (103) being slidably connected to the hanging frame (100), and the protruding strip (103) being movable vertically; A traction rope (104) provided on the hanging frame (100); a first moving component provided between the protruding strip (103) and the connecting frame (101), used for moving the position of the lifting claw (102), wherein the first moving component can move the position of the lifting claw (102) when the hanging frame (100) moves close to the connecting frame (101), and the lifting claw (102) moves toward the beam plate; a second moving component provided between the hanging claw (102) and the protruding strip (103), used for moving the position of the protruding strip (103), wherein the second moving component can move the position of the protruding strip (103) when the hanging claw (102) moves, and the protruding strip (103) moves downward; Wherein, the traction rope (104) is capable of limiting the position of the connecting frame (101) when the hanging frame (100) is towed; The hanging frame (100) comprises two cross beams (200), the hanging claw (102) is slidably connected to the cross beams (200), two longitudinal beams (201) are connected between the two cross beams (200), the connecting frame (101) is slidably connected to the longitudinal beams (201), a traction beam (202) is connected between the two longitudinal beams (201), and the traction rope (104) is connected to the traction beam (202); The first moving part comprises a connecting rod (300) slidably connected to the crossbeam (200), the bottom of the connecting rod (300) is connected to the connecting frame (101), the connecting rod (300) is connected to a first rack (301), the longitudinal beam (201) is connected to a lead screw (302), the hanging claw (102) is connected to the lead screw (302), and the lead screw (302) is connected to a first gear (303) meshing with the first rack (301); The second movable component comprises a connecting groove (400) formed on the crossbeam (200), a second gear (401) being rotatably connected in the connecting groove (400), the lead screw (302) extending into the connecting groove (400) and connected to the second gear (401), and a second rack (402) meshing with the second gear (401) being connected to the protruding strip (103).

2. A beam and slab installation hanger for dock construction according to claim 1, characterized in that: The top of the connecting frame (101) is connected to a connecting rod (403), the connecting rod (403) is slidably connected to the longitudinal beam (201), and the top of the connecting rod (403) extends to the top of the longitudinal beam (201) and is connected to a first spring (404).

3. The beam and slab installation hanger for dock construction according to claim 1, characterized in that: The longitudinal beam (201) is connected to a guide shaft (500), the traction beam (202) is slidably connected to a traction frame (501), the traction rope (104) bypasses the guide shaft (500) and is connected to the traction frame (501), the traction frame (501) is connected to a limit strip (502), and the connecting rod (300) is provided with a plurality of limit slots (503) adapted to the limit strips (502).

4. A beam and slab installation hanger for dock construction according to claim 3, characterized in that: A second spring (504) is connected between the traction frame (501) and the longitudinal beam (201).

5. The beam and slab installation hanger for dock construction according to claim 3, characterized in that: The crossbeam (200) is connected to a third gear (505), and the traction frame (501) is connected to a third rack (506) meshing with the third gear (505).

Images