Material distributing machine lifting device for warehousing large ship lock concrete

Abstract

The utility model provides a spreader lifting device for large ship lock concrete warehousing, which comprises a lifter, a liftable lifting platform frame is arranged on the lifter, the lifting platform frame is used for placing a crawler-type spreader, the lifter further comprises a fixed frame body, a top beam is arranged at the upper end of the fixed frame body, a fixed pulley block is arranged on the top beam, a movable pulley block is arranged on the lifting platform frame, and a movable pulley block is arranged on the movable pulley block. A third lifting cable is wound between the fixed pulley block and the movable pulley block, a second winch is arranged at the lower end of the fixed frame body, one end of the third lifting cable is connected with the second winch, the other end of the third lifting cable is connected with the lifting platform, and the problem that during construction of the large ship lock, medium and low concrete warehousing feeding efficiency is low is solved.

Description

Technical Field

[0001] This utility model relates to the field of concrete placement construction, and in particular to a concrete placing boom lifting device for concrete placement in large ship locks. Background Technology

[0002] The construction of ultra-large ship locks requires the excavation of deep foundation pits. The Madao Hub Ship Lock project is large in scale and has a tight schedule. Conventional ground-level and low-to-medium-height concrete placement methods would not meet the height requirements for ship lock construction. While extensive use of tower cranes for placement would be feasible due to the large area occupied by the ship lock, achieving full coverage would not only involve long crane setup times, impacting construction progress, but also low efficiency, dead zones between adjacent cranes, and potential spatial interference. Therefore, in actual construction, a multi-dimensional, multi-mechanism hybrid placement method was primarily adopted.

[0003] During the construction of the foundation, tracked concrete placing booms are usually used for fast and efficient concrete delivery. However, due to limited space and the limited length of the inclined conveyor belt, it is difficult for the placing boom to cover the low and medium height areas, which restricts the efficiency of concrete placement. Utility Model Content

[0004] This invention provides a concrete placing boom lifting device for concrete placement in large ship locks, which solves the problem of low concrete supply efficiency at medium and low heights during the construction of large ship locks.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a concrete placing boom lifting device for concrete placement in large ship locks, including a lift, a liftable lifting platform on the lift, the lifting platform for placing a tracked concrete placing boom, the lift also including a fixed frame, a top beam at the upper end of the fixed frame, a fixed pulley block on the top beam, a movable pulley block on the lifting platform, a third hoisting cable wound between the fixed pulley block and the movable pulley block, a second winch at the lower end of the fixed frame, one end of the third hoisting cable connected to the second winch, and the other end of the third hoisting cable connected to the lifting platform.

[0006] In the preferred embodiment, the lifting platform is provided with slide rails at both ends, and the fixed frame is provided with guide grooves, with the slide rails and guide grooves slidably connected.

[0007] In a preferred embodiment, the lifting platform is equipped with a rotatable gear, the fixed frame is equipped with a rack, the gear meshes with the rack, a ratchet is fitted on the gear, a swingable brake is provided on one side of the gear on the lifting platform, and a holding spring and an electromagnet are provided on the lifting platform. The holding spring presses the brake so that the end of the brake abuts against the ratchet, and the electromagnet is used to attract the brake to swing to release the ratchet.

[0008] In a preferred embodiment, the fixed frame includes at least four parallel vertical connecting columns, the upper ends of which are connected to the top beam, and the lower ends of which are provided with bottom beams. The top beam, bottom beams, and vertical connecting columns form a cubic frame structure.

[0009] In the preferred embodiment, a flip-up upper frame is provided on the outside of the vertical connecting column at the lower end of the fixed frame.

[0010] The beneficial effects of this utility model are as follows: by using a hoist to carry a concrete placing boom, the height of the concrete placing boom can be freely raised. In areas with limited space, concrete can be placed into the formwork at a higher position without extending the length of the inclined conveyor belt. The hoist is equipped with an anti-fall mechanism, which can ensure the stability of the lifting platform after the concrete placing boom reaches the predetermined height and prevent it from falling and causing safety risks. The hoist has a hollow center, and the lifting platform can be lowered to near the ground. It is also equipped with an upper frame to facilitate the entry of the concrete placing boom. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of a tracked concrete placing boom.

[0013] Figure 2 This is a top view of the concrete collection device of a tracked concrete placing boom.

[0014] Figure 3 This is a side view of the concrete collection device of a tracked concrete placing boom.

[0015] Figure 4 This is a structural diagram of the concrete collection device for a tracked concrete placing boom.

[0016] Figure 5 This is a structural diagram of the universal joint of a tracked concrete placing boom.

[0017] Figure 6 This is a cross-sectional view of the universal joint of a tracked concrete placing boom.

[0018] Figure 7 This is a schematic diagram of the oscillating fixed pulley device of a tracked concrete placing boom.

[0019] Figure 8 This is a schematic diagram of the elevator of a tracked concrete placing boom.

[0020] Figure 9 This is a schematic diagram of the anti-fall structure of the elevator of a tracked concrete placing boom.

[0021] Figure 10 This is a schematic diagram of the lifting end of a tracked concrete placing boom.

[0022] Figure 11 This is a top-view schematic diagram of the elevator of a tracked concrete placing boom.

[0023] Figure 12 This is the technical parameter table for the elevator.

[0024] In the diagram: 1. Concrete collection device; 101. Frame; 102. Installation space; 2. Collection hopper; 201. First collection hopper; 202. Second collection hopper; 203. Feed end; 204. Discharge port; 3. First hoist; 4. First winch; 401. Winch mounting plate; 5. Second hoist; 6. Tracked concrete placing boom; 7. Inclined conveyor belt; 701. Lifting frame; 8. Lifting platform; 801. Fixed frame; 802. Top beam; 803. Fixed pulley block; 804. Moving pulley block; 805. Guide groove; 806. Slide rail; 807. Third hoist; 808. Second winch; 809. Gear; 810. Rack; 811. Ratchet; 8 12; Retractor 813; Holding spring 814; Electromagnet 815; Upper frame 816; Bottom beam 817; Vertical connecting column 818; Fixed pulley device 9; Pulley bracket 901; Rotary wheel 902; Extension rod 903; Arc-shaped slider 904; Recessed locking block 905; Clearance groove 906; Upper pressure block 907; Arc-shaped sliding cavity 908; Universal connector 10; Connecting sleeve 1001; Rotating shaft 1002; Waist-shaped hole 1003; Swing rod 1004; Pin shaft 1005; Screw sleeve 1006; Ring groove 1007; Locking pin 1008; Mobile tower crane 11; Crawler crane 12; Fixed tower crane 13. Detailed Implementation

[0025] Example 1:

[0026] like Figure 1-11 In this invention, a concrete placing boom lifting device for concrete loading into a large ship lock includes a lift 8, a liftable lifting platform 801 on the lift 8, a tracked concrete placing boom 6 on the lifting platform 801, an inclined ramp conveyor belt 7 at one end of the tracked concrete placing boom 6, a concrete collecting device 1 at the end of the ramp conveyor belt 7, a tiltable collecting hopper 2 at one end of the collecting hopper 2, and the collecting hopper 2 tilts to allow the concrete to be poured from the other end onto the ramp conveyor belt 7.

[0027] The concrete is transported by the inclined conveyor belt 7 to the tracked placing boom 6, and then conveyed by the tracked placing boom 6 to the specific construction location.

[0028] If the height of the entry position is insufficient, the lifting platform 801 will raise the tracked concrete placing machine 6, and the lifting frame 701 will adjust its height accordingly to adjust the tilt angle of the inclined conveyor belt 7.

[0029] In a preferred embodiment, the elevator 8 includes a fixed frame 802, a top beam 803 at the upper end of the fixed frame 802, a fixed pulley block 804 on the top beam 803, a movable pulley block 805 on the lifting platform 801, a third hoisting cable 808 wound between the fixed pulley block 804 and the movable pulley block 805, a second winch 809 at the lower end of the fixed frame 802, one end of the third hoisting cable 808 connected to the second winch 809, and the other end of the third hoisting cable 808 connected to the lifting platform 801.

[0030] The fixed frame 802 is a welded cubic frame structure. The lifting platform 801 has slide rails 807 at both ends, and the fixed frame 802 has guide grooves 806. The slide rails 807 and guide grooves 806 are slidably connected.

[0031] In a preferred embodiment, the lifting platform 801 is provided with a rotatable gear 810, the fixed frame 802 is provided with a rack 811, the gear 810 meshes with the rack 811, a ratchet 812 is fitted on the gear 810, a swingable brake 813 is provided on one side of the gear 810 on the lifting platform 801, and a retaining spring 814 and an electromagnet 815 are provided on the lifting platform 801. The retaining spring 814 presses the brake 813 so that the end of the brake 813 abuts against the ratchet 812, and the electromagnet 815 is used to attract the brake 813 to swing to release the ratchet 812.

[0032] The ratchet 812 is connected to the gear 810 as one unit.

[0033] When the lifting platform 801 rises, the electromagnet 815 is de-energized, and the retaining spring 814 presses down on the front end of the brake 813, causing the brake 813 to abut against the ratchet 812. Due to the one-way passage characteristic of the ratchet 812, the gear 810 can rotate without obstructing the rise of the lifting platform 801. After the lifting platform 801 reaches its position, the brake 813 engages the ratchet 812, preventing the third lifting cable 808 from being under stress for an extended period.

[0034] When the lifting platform 801 descends, the electromagnet 815 is energized and attracts the brake 813. The brake 813 releases the ratchet 812, and the gear 810 can reverse, which will not hinder the descent of the lifting platform 801.

[0035] In a preferred embodiment, the fixed frame 802 includes at least four parallel vertical connecting columns 818. The upper end of the vertical connecting column 818 is connected to the top beam 803, and the lower end of the vertical connecting column 818 is provided with a bottom beam 817. The top beam 803, the bottom beam 817 and the vertical connecting columns 818 form a cubic frame structure.

[0036] In the preferred embodiment, a flip-up upper frame 816 is provided on the outer side of the vertical connecting column 818 at the lower end of the fixed frame 802.

[0037] The lifting platform 801 is lowered to its lowest position, the upper frame 816 is flipped down and placed against the ground, and the tracked concrete placing machine 6 can travel through the upper frame 816 to the lifting platform 801, then the lifting platform 801 is raised to the top, and finally the inclined conveyor belt 7 is installed.

[0038] The concrete collection device 1 includes a frame 101, and the collection hopper 2 includes a first collection hopper 201 and a second collection hopper 202. The first collection hopper 201 and the second collection hopper 202 are provided with a feed end 203 at one end and a discharge port 204 at the other end. The lower end of the inclined conveyor belt 7 is provided with a lifting frame 701. The discharge port 204 of the first collection hopper 201 and the second collection hopper 202 is located above the lifting frame 701. The end of the first collection hopper 201 and the second collection hopper 202 near the discharge port 204 is hinged to the frame 101. At least two first winches 4 are provided at the upper end of the frame 101. The first winches 4 are provided with first lifting cables 3. The end of the first lifting cable 3 is connected to the end of the first collection hopper 201 and the second collection hopper 202 near the feed end 203.

[0039] The top beam of the frame 101 is equipped with two winch mounting plates 401 for mounting the first winch 4.

[0040] The frame 101 is a cubic welded frame with two concrete collection hoppers, the first collection hopper 201 and the second collection hopper 202, inside, which can alternately pour concrete into the inclined conveyor belt 7 to ensure an uninterrupted supply of concrete. The two inlet ends 203 are located on the outer side, which are far apart, and the two outlets 204 are located on the inner side, which are close together. The lifting frame 701 at the lower end of the inclined conveyor belt 7 can catch the outlets 204 of the two collection hoppers.

[0041] The upper end of the frame 101 is provided with a fixed pulley device 9 and a second lifting cable 5. The second lifting cable 5 passes around the fixed pulley device 9, and the two ends of the second lifting cable 5 are respectively connected to the first collection hopper 201 and the second collection hopper 202 near the discharge port 204.

[0042] The first collecting bucket 201 and the second collecting bucket 202 act as counterweights to each other, offsetting the weight of the collecting buckets themselves. The first winch 4 only needs to provide the force to lift the concrete, thus reducing the energy consumption required by the first winch 4. For the same collecting bucket, the connection points of the first lifting cable 3 and the second lifting cable 5 are located on the two side plates respectively, so that the force is more even when the collecting bucket is lifted.

[0043] When the first collecting hopper 201 tilts downwards, the second collecting hopper 202 tilts upwards; when the first collecting hopper 201 tilts upwards, the second collecting hopper 202 tilts downwards. When the collecting hoppers are level, the concrete mixer truck unloads into the discharge port 204; when the collecting hoppers tilt upwards, they unload into the lifting frame 701. Therefore, one collecting hopper is always in the concrete feeding state, while the other is in the feeding state onto the inclined conveyor belt 7. Because the inlet ends 203 of the two collecting hoppers are spaced apart, when the first truck unloads into the first collecting hopper 201, the second truck can move to a parallel position in advance to wait. When the first collecting hopper 201 tilts upwards to unload onto the inclined conveyor belt 7, the second collecting hopper 202 is leveled, and the second truck can immediately begin unloading into the second collecting hopper 202, saving scheduling time and ensuring a continuous and uninterrupted flow of concrete into the storage area.

[0044] Both the first collecting hopper 201 and the second collecting hopper 202 are provided with universal connectors 10 on both sides near the discharge port 204. The first lifting cable 3 and the second lifting cable 5 are connected to the first collecting hopper 201 and the second collecting hopper 202 through the universal connectors 10. The frame body 101 is provided with a connecting sleeve 1001. The universal connector 10 includes a rotatable rotating shaft 1002. The rotating shaft 1002 is rotatably sleeved with the connecting sleeve 1001. The rotating shaft 1002 is provided with a waist-shaped hole 1003. A pin shaft 1005 is provided in the waist-shaped hole 1003. A swing rod 1004 is also provided. The swing rod 1004 is rotatably connected to the pin shaft 1005. The pin shaft 1005 is arranged perpendicular to the axis of the rotating shaft 1002. One end of the swing rod 1004 is provided with a threaded sleeve 1006. The threaded sleeve 1006 is used to connect with the first lifting cable 3 or the second lifting cable 5.

[0045] Since the collection bucket rotates in a swinging manner at one end, the angles of the second lifting cables 5 on both sides of the fixed pulley device 9 change continuously in two dimensions, while the angle of the first lifting cable 3 changes in one dimension. In order to improve the force condition at the connection end between the first lifting cable 3, the second lifting cable 5 and the collection bucket, a universal joint 10 that can rotate in all directions needs to be set to adapt to the angle change.

[0046] The outer wall of the rotating shaft 1002 is provided with an annular groove 1007, and the side wall of the connecting sleeve 1001 is provided with a plurality of locking pins 1008 along the circumferential direction. Each locking pin 1008 passes through the connecting sleeve 1001 to be inserted into the annular groove 1007.

[0047] The locking pin 1008 is inserted into the annular groove 1007 to restrict the axial movement of the rotating shaft 1002, but it is clearance-fitted with the annular groove 1007 and does not hinder the rotation of the rotating shaft 1002.

[0048] As the collecting hopper swings, the position and height of the second lifting cable 5 constantly change at the connection point between the first collecting hopper 201 and the feed end 203. When the connection point of the first collecting hopper 201 is forward, the connection point of the second collecting hopper 202 is backward, and vice versa. At any given moment, the second lifting cable 5 may still experience a biased force, increasing the risk of it detaching from the impeller 902.

[0049] The fixed pulley device 9 includes a pulley bracket 901, a rotatable wheel 902 on the pulley bracket 901, a recessed locking block 905 on the frame body 101, an arc-shaped sliding cavity 908 at the upper end of the recessed locking block 905, the recessed locking block 905 and the arc-shaped sliding cavity 908 are engaged to form an upper pressing block 907, an extension rod 903 at the upper end of the pulley bracket 901, an arc-shaped slider 904 at the upper end of the extension rod 903, the arc-shaped slider 904 slides in the upper pressing block 907, and a clearance groove 906 is provided in the center of the recessed locking block 905, through which the extension rod 903 passes.

[0050] The rotating wheel 902 can adaptively change its orientation and posture according to the tension of the second lifting cables 5 on both sides, ensuring that it is always in the middle position in the front and rear direction of the collection bucket, reducing the risk of the second lifting cables 5 coming out of the pulley groove of the rotating wheel 902. In addition, the side wall of the pulley bracket 901 can limit the second lifting cables 5. Even if the second lifting cables 5 leave the pulley groove of the rotating wheel 902, they will be blocked and will not come out completely, ensuring the safety of the mechanism.

[0051] The discharge ports 204 of the first collecting hopper 201 and the second collecting hopper 202 are located on adjacent sides.

[0052] The frame 101 includes two installation spaces 102, with a first collection hopper 201 and a second collection hopper 202 disposed within each second collection hopper 202.

[0053] Example 2:

[0054] Technical parameters of tracked concrete placing boom lifting platform as follows: Figure 12 This machine has the following features:

[0055] 1. It adopts a gantry structure, which allows the tracked concrete placing boom to move up and down the platform independently via the upper guide frame.

[0056] It enables the entire machine to lift and rotate the fabric 360 degrees.

[0057] 2. The gantry and platform adopt a box-beam composite structure, which facilitates transportation and storage, and makes installation and disassembly convenient;

[0058] 3. The system utilizes four high-power winches to simultaneously lift the gantry at its four corners, and also includes individual lifting capabilities.

[0059] Adjust to a level tone.

[0060] 4. The lifting platform is equipped with a fall protection function, which is achieved through the linkage of gears, racks, ratchet wheels, and wire ropes.

[0061] Fall protection.

[0062] 5. The lifting platform weighs approximately 40 tons (excluding the weight of the placing boom). The machine is equipped with lifting points for use.

[0063] A large-tonnage crane is used for displacement.

[0064] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A concrete placing boom lifting device for concrete placement in large ship locks, characterized in that: The system includes an elevator (8), which has a liftable platform (801) for placing a tracked concrete placing machine (6). The elevator (8) also includes a fixed frame (802), which has a top beam (803) at the top end and a fixed pulley block (804) on the top beam (803). The lifting platform (801) has a movable pulley block (805), and a third hoisting cable (808) is wound between the fixed pulley block (804) and the movable pulley block (805). The fixed frame (802) has a second winch (809) at the bottom end. One end of the third hoisting cable (808) is connected to the second winch (809), and the other end of the third hoisting cable (808) is connected to the lifting platform (801).

2. The concrete placing boom lifting device for concrete placement in large ship locks according to claim 1, characterized in that: The lifting platform (801) is provided with slide rails (807) at both ends, and the fixed frame (802) is provided with guide grooves (806). The slide rails (807) and guide grooves (806) are slidably connected.

3. The concrete placing boom lifting device for concrete placement in large ship locks according to claim 2, characterized in that: The lifting platform (801) is provided with a rotatable gear (810), and the fixed frame (802) is provided with a rack (811). The gear (810) meshes with the rack (811), and a ratchet (812) is fitted on the gear (810). A swingable brake (813) is provided on one side of the gear (810) on the lifting platform (801). The lifting platform (801) is provided with a retaining spring (814) and an electromagnet (815). The retaining spring (814) presses the brake (813) so that the end of the brake (813) abuts against the ratchet (812). The electromagnet (815) is used to attract the brake (813) to swing to release the ratchet (812).

4. The concrete placing boom lifting device for concrete placement in large ship locks according to claim 1, characterized in that: The fixed frame (802) includes at least four parallel vertical connecting columns (818), the upper end of the vertical connecting column (818) is connected to the top beam (803), and the lower end of the vertical connecting column (818) is provided with a bottom beam (817). The top beam (803), the bottom beam (817) and the vertical connecting column (818) form a cubic frame structure.

5. The concrete placing boom lifting device for concrete placement in large ship locks according to claim 1, characterized in that: The lower vertical connecting column (818) of the fixed frame (802) is provided with a flip-up upper frame (816).

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