Multi-hoisting-point adjustable large-span hoisting beam

Abstract

The present application relates to hoisting equipment technical field, specifically for a kind of multi-hoisting point adjustable large-span hoisting beam, including hoisting beam body, still including walking lifting mechanism, electric hydraulic pump station and electric control mechanism;Hoisting beam body is used as load-bearing base and forms large-span hoisting structure;Walking lifting mechanism has two, two walking lifting mechanisms are all set on the hoisting beam body, and can be moved along hoisting beam body length direction to adjust lifting position, walking lifting mechanism is also used to hoist and lower the hoisted object.The present application moves along hoisting beam body by walking lifting mechanism, can flexibly adjust the position of lifting hook according to the width of hoisted object or the distance between hoisting points, so the hoisting adaptability and operation convenience can be improved.

Description

Technical Field

[0001] This invention relates to the field of hoisting equipment technology, specifically to a multi-point adjustable large-span hoisting beam. Background Technology

[0002] As a commonly used lifting auxiliary device, the lifting beam is widely used in port loading and unloading, ship transportation, and large equipment transportation. It can avoid problems such as cargo tilting, deformation, or excessive local stress caused by single-point lifting, and therefore plays an important role in transportation and loading and unloading operations.

[0003] Traditional lifting beams typically have several fixed lifting points on the beam structure. During operation, the appropriate lifting point is selected based on the center of gravity, length, or width of the object being lifted. However, the lifting point positions of traditional lifting beams are mostly fixed structures. When the dimensions of the object being lifted change, especially the width or lifting spacing, it is often necessary to manually reselect the lifting points, or even move the lifting equipment or perform multiple trial lifts to achieve a balanced lifting configuration. These operations are not only cumbersome and time-consuming, but also require a high level of operator experience and are prone to safety hazards such as uneven loading and tilting due to inaccurate lifting point matching. Therefore, this invention provides a large-span lifting beam structure with more flexible lifting point position adjustment and more convenient operation, effectively solving the above-mentioned drawbacks. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-point adjustable large-span lifting beam to solve the problem that the lifting point positions of traditional lifting beams are fixed and cannot be flexibly adjusted according to the size of the object being lifted.

[0005] The present invention is achieved through the following technical solution: a multi-point adjustable large-span suspension beam, including a suspension beam body, and also including a traveling lifting mechanism, an electric hydraulic pump station and an electrical control mechanism; The main body of the lifting beam is used as a load-bearing foundation and forms a large-span lifting structure; The traveling and lifting mechanism has two parts, both of which are mounted on the lifting beam body and can move along the length of the lifting beam body to adjust the lifting position. The traveling and lifting mechanism is also used to lift and lower the suspended object. The electric hydraulic pump station is installed on the lifting beam body and connected to the traveling lifting mechanism to provide power to the traveling lifting mechanism; The electrical control mechanism is electrically connected to the electric hydraulic pump station and the traveling and lifting mechanism, and is used to control the start and stop of the electric hydraulic pump station and the traveling, lifting and lowering actions of the traveling and lifting mechanism. The lifting beam body is provided with a transmission and engagement structure extending along its length. The traveling and lifting mechanism includes a drive component that matches the transmission and engagement structure. The drive component can move laterally along the length of the transmission and engagement structure or lock at any position. The two traveling and lifting mechanisms are equivalent to two movable lifting points, thereby solving the drawback of the fixed position of the lifting points in traditional lifting beams.

[0006] Optionally, the traveling and lifting mechanism includes a traveling section, with rolling frames respectively provided on both sides of the top of the traveling section. Each rolling frame is rotatably equipped with a roller, which rolls in cooperation with the traveling bearing section at the bottom of the lifting beam body, so that the traveling section can move along the length of the lifting beam body. The traveling and lifting mechanism also includes a lifting winch, a wire rope, and a hook. The lifting winch is fixedly installed at the bottom of the traveling section, and the wire rope is wound on the drum of the lifting winch and wound around a pulley on the hook, so that the lifting winch can raise and lower the hook by winding and releasing the wire rope.

[0007] Optionally, the transmission mechanism includes a rack mounted on the lifting beam body, and the drive assembly includes a gear and a hydraulic drive structure. The gear meshes with the rack, and the output shaft of the hydraulic drive structure is coaxially and fixedly connected to the gear for driving the gear to rotate. Each hoisting winch is equipped with an encoder, which is used to detect the drum rotation of the corresponding hoisting winch. The electrical control mechanism synchronously controls the hoisting or lowering actions of the corresponding hoisting winch based on the detection signals from each encoder.

[0008] Optionally, the electrical control mechanism includes a PLC control box, and the encoder is communicatively connected to the PLC control box. The PLC control box is equipped with a wireless remote control panel, which has operating handles corresponding to the two traveling and lifting mechanisms. These operating handles are used to control the lateral movement or lifting / lowering of the hooks of the respective traveling and lifting mechanisms. The wireless remote control panel also has an operation switching knob for switching between individual control mode and linkage control mode for the two operating handles. The electrical control mechanism also includes a tilt angle detection sensor and an alarm module. The tilt angle detection sensor is mounted on the lifting beam body. When the tilt angle of the lifting beam body exceeds a preset threshold, the electrical control mechanism controls the alarm module to respond.

[0009] Optionally, the electro-hydraulic pump station includes a hydraulic control system, which includes two sets of multi-way valves arranged in parallel. Each set of multi-way valves controls a traveling and lifting mechanism, and the pressure compensation oil circuits of the two sets of multi-way valves are interconnected to achieve on-demand distribution of hydraulic flow under linkage conditions. The hydraulic control system also includes an electromagnetic directional valve, a logic valve, and a throttle valve for emergency lowering. The electromagnetic directional valve can switch under the control of the electronic control mechanism to connect the lifting side oil circuit with the lowering side oil circuit, and the throttle valve can adjust the emergency lowering speed.

[0010] Compared with the prior art, the present invention provides a multi-point adjustable large-span suspension beam, which has the following beneficial effects: 1. The present invention uses a traveling lifting mechanism that moves along the lifting beam body, and the position of the hook can be flexibly adjusted according to the width of the object being lifted or the spacing between lifting points, thus improving the adaptability and ease of operation of lifting operations; 2. This invention monitors and controls the lifting of the hook and the posture of the lifting beam through an encoder, a PLC control box, and an angle detection sensor. It can promptly issue an alarm when the tilt angle of the lifting beam exceeds a threshold, thus helping to improve the safety of the lifting process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the walking and lifting mechanism of the present invention; Figure 3 This is a schematic diagram of the hydraulic control system of the present invention.

[0012] In the diagram: 100, lifting beam body; 101, rack; 200, traveling and lifting mechanism; 201, traveling section; 202, drive assembly; 2021, gear; 2022, hydraulic drive structure; 203, rolling frame; 204, roller; 205, lifting winch; 206, wire rope; 207, hook; 300, electric hydraulic pump station; 400, electrical control mechanism; 500, encoder. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Please see Figure 1 - Figure 3This embodiment provides a multi-point adjustable large-span lifting beam, including a beam body 100, a traveling and lifting mechanism 200, an electro-hydraulic pump station 300, and an electrical control mechanism 400. The beam body 100 serves as the load-bearing foundation of the entire lifting beam, extending along its length to form a beam-type load-bearing structure suitable for large-span lifting operations. The beam body 100 can be connected to external lifting equipment and bears the loads generated by the traveling and lifting mechanism 200, the lifted object, and related auxiliary equipment.

[0015] In this embodiment, there are two traveling lifting mechanisms 200, both of which are mounted on the lifting beam body 100 and can move along the length of the lifting beam body 100. By adjusting the distance between the two traveling lifting mechanisms 200, it can accommodate objects of different widths or different lifting point spacings. Each traveling lifting mechanism 200 also has lifting and lowering functions to move the object being lifted vertically. An electro-hydraulic pump station 300 is mounted on the lifting beam body 100 and connected to the traveling lifting mechanism 200, providing hydraulic power to the traveling lifting mechanism 200 to perform its lateral and lifting actions. An electrical control mechanism 400 is electrically connected to the electro-hydraulic pump station 300 and the traveling lifting mechanism 200, controlling the start and stop of the electro-hydraulic pump station 300, and controlling the traveling, lifting, and lowering actions of the traveling lifting mechanism 200.

[0016] As one embodiment and not a limitation, the lifting beam body 100 is provided with a transmission and engagement structure extending along its length. The traveling and lifting mechanism 200 includes a drive component 202 that matches the transmission and engagement structure. The drive component 202 can move laterally along the length of the transmission and engagement structure, thereby driving the corresponding traveling and lifting mechanism 200 to adjust its position. After reaching the target position, the drive component 202 can keep the traveling and lifting mechanism 200 in the corresponding position to meet the requirements for the lifting point position during the lifting operation.

[0017] In this embodiment, the traveling lifting mechanism 200 includes a traveling section 201. Rolling frames 203 are respectively provided on both sides of the top of the traveling section 201, and each rolling frame 203 is rotatably mounted with a roller 204. The rollers 204 roll into contact with the traveling support portion at the bottom of the lifting beam body 100, enabling the traveling section 201 to move along the length of the lifting beam body 100. The rolling contact between the rollers 204 and the traveling support portion provides support and guidance for the lateral movement of the traveling lifting mechanism 200.

[0018] Furthermore, the transmission and engagement structure includes a rack 101 mounted on the lifting beam body 100, and the drive assembly 202 includes a gear 2021 and a hydraulic drive structure 2022. The gear 2021 meshes with the rack 101, and the output shaft of the hydraulic drive structure 2022 is coaxially and fixedly connected to the gear 2021. When the hydraulic drive structure 2022 is working, it drives the gear 2021 to rotate, generating relative motion between the gear 2021 and the rack 101, thereby driving the traveling part 201 to move along the length direction of the lifting beam body 100. By controlling the start and stop of the hydraulic drive structure 2022, the position adjustment of the traveling lifting mechanism 200 can be realized. Specifically, the hydraulic drive structure 2022 can be a hydraulic motor, which can also drive the gear 2021 to rotate by providing hydraulic power through the electro-hydraulic pump station 300.

[0019] As one embodiment and not a limitation, the traveling and lifting mechanism 200 also includes a lifting winch 205, a wire rope 206, and a hook 207. The lifting winch 205 is fixedly installed at the bottom of the traveling part 201. The wire rope 206 is wound on the drum of the lifting winch 205 and wound around a pulley on the hook 207. In use, the lifting winch 205 winds up and down the wire rope 206 through the drum, thereby driving the hook 207 to rise or fall, so as to realize the lifting, lowering, or height adjustment of the suspended object.

[0020] Furthermore, each hoisting winch 205 is equipped with an encoder 500. The encoder 500 is used to detect the drum rotation of the corresponding hoisting winch 205 and sends the detection signal to the electrical control mechanism 400. The electrical control mechanism 400 controls the hoisting or lowering action of the corresponding hoisting winch 205 based on the detection signals from each encoder 500. When the two traveling hoisting mechanisms 200 need to be hoisted synchronously, the electrical control mechanism 400 can compare and adjust the actions of the two hoisting winches 205 based on the drum rotation feedback from the two encoders 500 to reduce the possibility of asynchronous hoisting. The electrical control mechanism 400 includes a PLC control box, and the encoders 500 are communicatively connected to the PLC control box. The PLC control box is used to receive the feedback signals from the encoders 500 and output control commands to the corresponding actuators. Through the PLC control box, the lateral movement of the electro-hydraulic pump station 300, the traveling hoisting mechanism 200, and the hoisting actions of the hoisting winches 205 can be centrally controlled.

[0021] Specifically, in this embodiment, the PLC control box is equipped with a wireless remote control panel, which has operating handles corresponding to the two traveling lifting mechanisms 200. Operators can control the lateral movement or lifting height of the hooks 207 of the corresponding traveling lifting mechanism 200 using the operating handles. For example, before hoisting, the two traveling lifting mechanisms 200 can be controlled to move along the lifting beam body 100, so that the positions of the two hooks 207 correspond to the hoisting position of the object being hoisted; during the hoisting process, the hooks 207 can be raised or lowered using the operating handles.

[0022] The wireless remote control panel is also equipped with an operation switching knob, which allows the two operating handles to switch between individual control mode and linkage control mode. In individual control mode, the two traveling and lifting mechanisms 200 can operate independently to adjust the position or height of a single lifting point; in linkage control mode, the two traveling and lifting mechanisms 200 can operate synchronously according to control commands to adapt to working conditions that require the two lifting points to move or lift together.

[0023] To improve the safety of the lifting beam during use, the electrical control mechanism 400 in this embodiment also includes a tilt angle detection sensor and an alarm module. The tilt angle detection sensor is installed on the lifting beam body 100 to detect the tilt state of the lifting beam body 100. When the detected tilt angle exceeds a preset threshold, the electrical control mechanism 400 controls the alarm module to respond. The alarm module can use an audible and visual alarm to alert the operator to changes in the lifting beam's posture, thereby facilitating timely adjustments and improving the safety factor.

[0024] As one embodiment and not a limitation, the electro-hydraulic pump station 300 includes a hydraulic control system. The hydraulic control system includes two sets of multi-way valves arranged in parallel, each set controlling one traveling lifting mechanism 200. The pressure compensation oil circuits of the two sets of multi-way valves are interconnected, enabling the two traveling lifting mechanisms 200 to obtain corresponding hydraulic flow distribution under linked operating conditions to meet the needs of linked control. The hydraulic control system also includes an electromagnetic directional valve, a logic valve, and a throttle valve for emergency lowering. When emergency lowering is required, the electromagnetic directional valve can switch under the control of the electro-control mechanism 400, connecting the lifting side oil circuit with the lowering side oil circuit, allowing the suspended object to drive the relevant hydraulic actuators in a controlled state; the throttle valve is used to regulate the oil flow during the emergency lowering process, thereby regulating the emergency lowering speed.

[0025] In operation, based on the width of the object being lifted, the position of the lifting point, or the center of gravity, the two traveling lifting mechanisms 200 are first moved along the lifting beam body 100 by the electronic control mechanism 400, so that the two hooks 207 reach the predetermined positions. Then, the hooks 207 are connected to the object being lifted, and the lifting winch 205 winds up or down the wire rope 206 to complete the lifting or lowering. During the lifting process, the encoder 500 provides feedback on the drum rotation, and the tilt detection sensor detects the tilt state of the lifting beam body 100. The electronic control mechanism 400 controls or alarms based on the corresponding signals. Through the above structure, this embodiment can achieve adjustment of the lifting point position and control of hook lifting, making it suitable for large-span lifting operations with different lifting spacing requirements.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-point adjustable large-span suspension beam, comprising a suspension beam body (100), characterized in that: It also includes a traveling lifting mechanism (200), an electric hydraulic pump station (300), and an electrical control mechanism (400). The lifting beam body (100) is used as a load-bearing foundation and forms a large-span lifting structure; There are two traveling lifting mechanisms (200), both of which are mounted on the lifting beam body (100) and can move along the length of the lifting beam body (100) to adjust the lifting position. The traveling lifting mechanism (200) is also used to lift and lower the object being lifted. The electric hydraulic pump station (300) is installed on the lifting beam body (100) and connected to the traveling lifting mechanism (200) to provide power to the traveling lifting mechanism (200); The electrical control mechanism (400) is electrically connected to the electric hydraulic pump station (300) and the traveling and lifting mechanism (200), and is used to control the start and stop of the electric hydraulic pump station (300) and control the traveling, lifting and lowering actions of the traveling and lifting mechanism (200); The lifting beam body (100) is provided with a transmission engagement structure extending along its length direction. The traveling lifting mechanism (200) includes a drive component (202) that matches the transmission engagement structure. The drive component (202) can move laterally along the length direction of the transmission engagement structure or lock at any position.

2. The multi-point adjustable large-span suspension beam according to claim 1, characterized in that: The traveling lifting mechanism (200) includes a traveling part (201). Rolling frames (203) are respectively provided on the top two sides of the traveling part (201). Each rolling frame (203) is rotatably provided with a roller (204). The roller (204) rolls with the traveling bearing part at the bottom of the lifting beam body (100) so that the traveling part (201) can move along the length direction of the lifting beam body (100).

3. The multi-point adjustable large-span suspension beam according to claim 2, characterized in that: The traveling and lifting mechanism (200) also includes a lifting winch (205), a wire rope (206), and a hook (207). The lifting winch (205) is fixedly installed at the bottom of the traveling part (201). The wire rope (206) is wound around the drum of the lifting winch (205) and wound around the pulley on the hook (207) so that the hook (207) can be raised and lowered by the lifting winch (205) winding and releasing the wire rope (206).

4. The multi-point adjustable large-span suspension beam according to claim 1, characterized in that: The transmission and engagement structure includes a rack (101) disposed on the lifting beam body (100), and the drive assembly (202) includes a gear (2021) and a hydraulic drive structure (2022). The gear (2021) meshes with the rack (101), and the output shaft of the hydraulic drive structure (2022) is coaxially and fixedly connected to the gear (2021) for driving the gear (2021) to rotate.

5. A multi-point adjustable large-span suspension beam according to claim 3, characterized in that: Each of the hoisting winches (205) is equipped with an encoder (500), which is used to detect the drum rotation of the corresponding hoisting winch (205). The electrical control mechanism (400) synchronously controls the hoisting or lowering action of the corresponding hoisting winch (205) according to the detection signal of each encoder (500).

6. A multi-point adjustable large-span suspension beam according to claim 5, characterized in that: The electrical control mechanism (400) includes a PLC control box, and the encoder (500) is communicatively connected to the PLC control box.

7. A multi-point adjustable large-span suspension beam according to claim 6, characterized in that: The PLC control box is equipped with a wireless remote control panel, which has operating handles corresponding to the two traveling lifting mechanisms (200) respectively. The operating handles are used to control the hooks (207) of the corresponding traveling lifting mechanisms (200) to move horizontally or rise and fall.

8. A multi-point adjustable large-span suspension beam according to claim 7, characterized in that: The wireless remote control panel is also equipped with an operation switching knob, which is used to switch between the two operating handles in individual control mode or linkage control mode.

9. A multi-point adjustable large-span suspension beam according to claim 1, characterized in that: The electronic control mechanism (400) also includes a tilt angle detection sensor and an alarm module. The tilt angle detection sensor is installed on the lifting beam body (100). When the tilt angle of the lifting beam body (100) exceeds a preset threshold, the electronic control mechanism (400) controls the alarm module to respond.

10. A multi-point adjustable large-span suspension beam according to claim 1, characterized in that: The electric hydraulic pump station (300) includes a hydraulic control system, which includes two sets of multi-way valves arranged in parallel. Each set of multi-way valves controls a traveling lifting mechanism (200) and the pressure compensation oil circuits of the two sets of multi-way valves are interconnected to achieve on-demand distribution of hydraulic flow under linkage conditions. The hydraulic control system also includes an electromagnetic directional valve, a logic valve and a throttle valve for emergency lowering. The electromagnetic directional valve can be switched under the control of the electric control mechanism (400) to connect the lifting side oil circuit with the lowering side oil circuit, and the emergency lowering speed can be adjusted through the throttle valve.

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