A large embedded part hoisting positioner
Patent Information
- Application Number
- CN202522122800.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-10-09
AI Technical Summary
[0005]有鉴于此，本实用新型提供一种大型埋件吊装定位器，能够解决风洞建设中大型预埋件吊装定位困难、精度难以保证的技术问题，提高了埋件安装的效率和准确性
吊装架的主要组成部分为主框架、伸缩臂和液压缸。主框架通常由型钢焊接而成，构成矩形或梯形结构，具有足够的强度来支撑整个吊装过程。液压缸固定在主框架上，活塞杆与伸缩臂连接，液压缸的作用是通过伸缩臂的纵向运动，来控制整个吊装定位器的伸缩能力。液压缸的双作用设计，确保伸缩臂能够根据需要精确伸缩，从而能够调整到合适的长度来适应不同尺寸的埋件吊装。多点夹持机构的主要目的是稳固并精确地夹持埋件。该系统由多个夹持机构组成，夹持机构沿伸缩臂的轴向均匀布置。每个夹持机构包括楔形夹爪、夹爪座和夹紧驱动装置。楔形夹爪能够在夹紧驱动装置的推动下，沿着夹爪座内的楔形滑道滑动，从而产生向埋件表面的楔紧力。这种设计能够在多个点上同时夹紧埋件，确保它在吊装过程中不会滑动或掉落。楔形夹爪的摩擦面设置有防滑齿纹或橡胶层，能够增强夹持力和稳定性。
Smart Images
Figure CN224900650U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of large embedded part hoisting and positioning technology, specifically, it relates to a large embedded part hoisting and positioning device. Background Technology
[0002] In wind tunnel construction, the 500mm×80mm (width×thickness) embedded steel plate in the stabilization section of large embedded parts is used for the subsequent installation of the steel contraction section. If the accuracy of the embedded parts is not up to standard, it will directly affect the installation quality of the subsequent steel contraction section, and ultimately affect the airflow quality of the tunnel. In order to meet the accuracy and quality requirements of the embedded parts in the stabilization section and ensure the smooth installation of the steel contraction section, the position accuracy of the embedded parts must be strictly controlled. Therefore, the installation quality and accuracy control of the embedded parts at the end of the stabilization section is the focus of the project.
[0003] During construction, based on the position of the pre-embedded steel plate edge, the embedded parts are initially reinforced by installing them onto the steel frame wooden formwork. Simultaneously, angle steel (L30×5mm) is longitudinally installed on both sides of the embedded parts, interlocking around the longitudinal section of the tunnel. Bolts are welded to both sides of the angle steel, passing through to the inside of the tunnel (the bolts are arranged regularly to ensure the position of the pre-embedded steel plate is determined by the reference inside the formwork). The embedded parts are then fixed to the formwork with bolts, which also serve as reference measurement benchmarks during the hoisting and installation of the steel frame wooden formwork. After the tunnel wall reinforcement is completed, a tower crane is used to hoist the inner wall steel frame wooden formwork to the corresponding position. The longitudinal and transverse axes of the embedded plates are positioned using bolts passing through the inside of the embedded plates. A chalk line is used to mark the axes, and a total station measuring reflector is placed at the center point of the axes. The formwork positioning is continuously measured and adjusted until the accuracy of the embedded parts meets the requirements of the equipment and process unit. The formwork is then reinforced, and the equipment and process unit is invited to review the work. Only after meeting the requirements can concrete pouring proceed. During concrete pouring, real-time observation is conducted using a total station. Any deviations are promptly adjusted, and accurate data is recorded and analyzed.
[0004] Traditional hoisting equipment typically relies on a single hoisting point and requires high stability of the hoisted object. It is difficult to handle objects with irregular shapes or those requiring precise positioning, resulting in technical problems such as difficulty in positioning and stabilizing large embedded parts in wind tunnel construction. Utility Model Content
[0005] In view of this, the present invention provides a large embedded part hoisting and positioning device, which can solve the technical problems of difficulty in hoisting and positioning large embedded parts in wind tunnel construction and difficulty in ensuring accuracy, thereby improving the efficiency and accuracy of embedded part installation.
[0006] This utility model is implemented as follows: This utility model provides a large embedded part hoisting and positioning device, which includes a hoisting frame, a multi-point clamping mechanism, and a fine-tuning device. The hoisting frame consists of a main frame, at least one telescopic arm, and a hydraulic cylinder. The cylinder body of the hydraulic cylinder is fixed to the main frame, and the piston rod is connected to the telescopic arm to drive the telescopic arm to extend and retract longitudinally. The multi-point clamping mechanism includes multiple clamping mechanisms arranged at intervals along the axial direction of the telescopic arm. Each clamping mechanism includes a wedge-shaped jaw, a jaw seat, and a clamping drive device. The wedge-shaped jaw is slidably installed in the jaw seat and clamped in the clamping drive device. The push generates a wedging force on the surface of the embedded part; the moving fine-tuning device includes casters and horizontal adjusting bolts set at the bottom of the main frame. The casters are used for overall movement, and the horizontal adjusting bolts are used for precise adjustment of the level of the hoisting frame at the installation site; the hoisting frame, the multi-point clamping mechanism, and the moving fine-tuning device are used to realize the clamping, hoisting, movement, fine-tuning, and precise positioning of large embedded parts; the front end of the telescopic arm is provided with a detachable limit block. The block has a trapezoidal structure and is used to prevent the embedded part from slipping off along the axis of the telescopic arm during hoisting.
[0007] Based on the above technical solution, the large embedded part hoisting and positioning device of this utility model can be further improved as follows: The main frame is a rectangular or trapezoidal three-dimensional frame welded from steel sections. A reinforcing crossbeam is provided at the bottom of the frame, and a hinge hole for mounting the hydraulic cylinder body is provided on the reinforcing crossbeam.
[0008] Furthermore, the telescopic arm has a box-shaped or I-shaped cross-section structure, and guide wheels or guide sliders are provided on both sides of the telescopic arm. The guide wheels or guide sliders are in rolling or sliding cooperation with the guide rails on the main frame to limit the lateral displacement of the telescopic arm and ensure the linearity of the telescopic movement.
[0009] Furthermore, the hydraulic cylinder is a double-acting hydraulic cylinder. The cylinder body is hinged to the main frame by a pin, and the piston rod is hinged to the rear end or middle of the telescopic boom by a pin. The stroke range of the hydraulic cylinder is set to ensure that the telescopic boom's extension length covers the maximum and minimum distance required for hoisting the embedded part.
[0010] Furthermore, the wedge-shaped gripper includes a pair of symmetrically arranged wedges, each wedge having a friction surface that contacts the surface of the embedded part. The friction surface is provided with anti-slip teeth or a vulcanized rubber layer. The back of the wedges cooperates with the wedge-shaped slide of the gripper seat. The clamping drive device pushes the wedges to move along the slide and simultaneously moves the wedges closer to the surface of the embedded part to form a clamp.
[0011] Furthermore, the clamping drive device is one of a manual lead screw, a hydraulic push rod, or a mechanical cam, and the output end of the clamping drive device is connected to the tail of the wedge block to realize clamping or releasing operations.
[0012] Furthermore, the clamping mechanisms are evenly arranged along the axial direction of the telescopic arm, with a quantity of 2 to 6 sets. Each set of clamping mechanisms is detachably connected to the telescopic arm by bolts or quick pins to adapt to the clamping requirements of embedded parts of different lengths.
[0013] Furthermore, the casters are installed at the four corners of the bottom of the main frame, each caster is equipped with a foot brake, and shock-absorbing pads or spring shock absorbers are installed between the casters and the main frame to absorb the impact during movement.
[0014] Furthermore, the leveling bolt includes a screw, an adjusting nut, and a supporting base plate. The screw passes vertically through a threaded hole at the bottom of the main frame and is connected to the supporting base plate. The adjusting nut is located between the lower surface of the main frame and the supporting base plate. By rotating the adjusting nut, the supporting base plate is raised or lowered, thereby achieving fine adjustment of the level of the main frame.
[0015] Furthermore, the main frame is equipped with lifting lugs and push-pull handles. The lifting lugs are used to connect with external lifting equipment, and the push-pull handles are used to manually push the positioner for short-distance movement.
[0016] Compared with the prior art, the advantages of the large embedded part hoisting and positioning device provided by this utility model are: The main components of the lifting frame are the main frame, the telescopic boom, and the hydraulic cylinders. The main frame is typically welded from structural steel, forming a rectangular or trapezoidal structure with sufficient strength to support the entire lifting process. The hydraulic cylinders are fixed to the main frame, with their piston rods connected to the telescopic boom. The hydraulic cylinders control the extension and retraction of the entire lifting locator through the longitudinal movement of the telescopic boom. The double-acting design of the hydraulic cylinders ensures that the telescopic boom can extend and retract precisely as needed, allowing for adjustment to a suitable length to accommodate the lifting of embedded parts of different sizes. The main purpose of the multi-point clamping mechanism is to securely and accurately clamp the embedded part. The system consists of multiple clamping mechanisms evenly arranged along the axial direction of the telescopic boom. Each clamping mechanism includes wedge-shaped jaws, jaw seats, and a clamping drive device. The wedge-shaped jaws slide along wedge-shaped tracks within the jaw seats under the push of the clamping drive device, thereby generating a wedging force against the surface of the embedded part. This design allows for simultaneous clamping of the embedded part at multiple points, ensuring it will not slip or fall during lifting. The friction surfaces of the wedge-shaped grippers are equipped with anti-slip teeth or a rubber layer, which can enhance the clamping force and stability.
[0017] To ensure the positioner can be precisely fine-tuned on-site, the adjustment mechanism includes casters and leveling bolts. The casters allow the entire lifting positioner to move flexibly laterally or longitudinally, while the leveling bolts are used to adjust the level of the lifting frame on-site.
[0018] The casters give the lifting positioner good mobility, allowing for free adjustment in confined spaces. The leveling bolts allow for fine-tuning, ensuring the equipment remains stable during lifting and preventing tilting.
[0019] The telescopic boom is designed with a box-shaped or I-shaped cross-section structure, and has guide wheels or sliders on both sides. The guide wheels cooperate with the guide rails on the main frame to limit the lateral displacement of the telescopic boom and ensure the linearity of the telescopic movement. This design ensures that the telescopic boom will not deviate laterally during extension and retraction, ensuring accuracy and stability during the lifting process.
[0020] The front end of the telescopic boom is equipped with a detachable limit stop, which has a trapezoidal structure and is designed to prevent the embedded part from slipping off along the axis of the telescopic boom during hoisting.
[0021] The limit block effectively prevents safety hazards caused by the slippage of the embedded part during hoisting, and ensures the stability of the embedded part during hoisting.
[0022] Four casters are installed at the bottom of the main frame, each equipped with a foot brake to ensure the equipment remains stationary when needed. Push-pull handles allow for short-distance manual movement of the lifting positioner, facilitating adjustments to the lifting location.
[0023] Casters and brakes make the equipment more flexible and stable to move. Push-pull handles provide convenience when manual movement is required.
[0024] This large embedded component hoisting and positioning device is rationally designed, combining multiple technologies such as hydraulics, mechanical clamping, multi-point clamping, and fine adjustment to meet various hoisting, positioning, and fine-tuning needs. The overall system features high precision, strong stability, and good flexibility, ensuring safe and efficient operation of large embedded components during hoisting. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Fig. 1 A schematic diagram of a large embedded component hoisting and positioning device; Fig. 2 This is a schematic diagram of the multi-point clamping mechanism; Fig. 3 This is a schematic diagram of the friction surface of a wedge-shaped gripper; The attached diagram lists the components represented by each number as follows: 10. Lifting frame; 20. Multi-point clamping mechanism; 30. Moving fine-tuning device. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0028] like Figs. 1-3 The image shows a first embodiment of a large embedded part hoisting and positioning device provided by this utility model. In this embodiment, it includes a hoisting frame 10, a multi-point clamping mechanism 20, and a moving fine-tuning device 30. The hoisting frame 10 consists of a main frame, at least one telescopic arm, and a hydraulic cylinder. The cylinder body of the hydraulic cylinder is fixed to the main frame, and the piston rod is connected to the telescopic arm to drive the telescopic arm to extend and retract longitudinally. The multi-point clamping mechanism 20 includes multiple clamping mechanisms arranged at intervals along the axial direction of the telescopic arm. Each clamping mechanism includes a wedge-shaped jaw, a jaw seat, and a clamping drive device. The wedge-shaped jaw is slidably installed in the jaw seat. The clamping drive device generates a wedging force on the surface of the embedded part; the moving fine adjustment device 30 includes casters and horizontal adjustment bolts set at the bottom of the main frame. The casters are used for overall movement, and the horizontal adjustment bolts are used for precise adjustment of the level of the hoisting frame at the installation site; the hoisting frame 10, the multi-point clamping mechanism 20 and the moving fine adjustment device 30 are used to realize the clamping, hoisting, moving, fine adjustment and precise positioning of large embedded parts; the front end of the telescopic arm is provided with a detachable limit block. The block has a trapezoidal structure and is used to prevent the embedded part from slipping off along the axis of the telescopic arm during hoisting.
[0029] In the above technical solution, the main frame is a rectangular or trapezoidal three-dimensional frame welded from steel sections. A reinforcing crossbeam is provided at the bottom of the frame, and hinge holes for installing the hydraulic cylinder body are opened on the reinforcing crossbeam.
[0030] Furthermore, in the above technical solution, the telescopic arm has a box-shaped or I-shaped cross-section structure, and guide wheels or guide sliders are provided on both sides of the telescopic arm. The guide wheels or guide sliders are in rolling or sliding cooperation with the guide rails on the main frame to limit the lateral displacement of the telescopic arm and ensure the linearity of the telescopic movement.
[0031] Furthermore, in the above technical solution, the hydraulic cylinder is a double-acting hydraulic cylinder. The cylinder body is hinged to the main frame by a pin, and the piston rod is hinged to the rear end or middle of the telescopic boom by a pin. The stroke range of the hydraulic cylinder is set to ensure that the telescopic boom's extension length covers the maximum and minimum distance required for the hoisting of the embedded part.
[0032] Furthermore, in the above technical solution, the wedge-shaped gripper includes a pair of symmetrically arranged wedges, each wedge having a friction surface that contacts the surface of the embedded part. The friction surface is provided with anti-slip teeth or a vulcanized rubber layer. The back of the wedges cooperates with the wedge-shaped slide of the gripper seat. The clamping drive device pushes the wedges to move along the slide and simultaneously moves the wedges closer to the surface of the embedded part to form a clamp.
[0033] Furthermore, in the above technical solution, the clamping drive device is one of a manual lead screw, a hydraulic push rod, or a mechanical cam, and the output end of the clamping drive device is connected to the tail of the wedge to realize the clamping or releasing operation.
[0034] Furthermore, in the above technical solution, the clamping mechanisms are evenly arranged along the axial direction of the telescopic arm, with a quantity of 2 to 6 sets. Each set of clamping mechanisms is detachably connected to the telescopic arm by bolts or quick pins to adapt to the clamping requirements of embedded parts of different lengths.
[0035] Furthermore, in the above technical solution, casters are installed at the four corners of the bottom of the main frame, each caster is equipped with a foot brake, and shock-absorbing pads or spring shock absorbers are installed between the casters and the main frame to absorb the impact during movement.
[0036] Furthermore, in the above technical solution, the leveling bolt includes a screw, an adjusting nut, and a supporting base plate. The screw passes vertically through a threaded hole at the bottom of the main frame and is connected to the supporting base plate. The adjusting nut is located between the lower surface of the main frame and the supporting base plate. By rotating the adjusting nut, the supporting base plate is raised or lowered, thereby achieving fine adjustment of the level of the main frame.
[0037] Furthermore, in the above technical solution, the main frame is equipped with lifting lugs and push-pull handles. The lifting lugs are used to connect with external lifting equipment, and the push-pull handles are used to manually push the positioner for short-distance movement.
[0038] Specifically, the principle of this utility model is as follows: During use, ensure the hydraulic cylinder and oil pipe system are intact and that the hydraulic oil volume is sufficient. Inspect the clamping mechanism: ensure all jaws and clamping devices are undamaged, and that the jaw surfaces are free of foreign objects or wear. Confirm that the limit stop can be installed smoothly, and that the guide rails and sliders of the telescopic arm are unobstructed, ensuring smooth telescopic movement. Move the lifting locator to the lifting position of the embedded part; fine-tuning can be done using the casters to ensure the equipment is aligned with the embedded part. Adjust the height of the lifting locator through the hydraulic control of the telescopic arm so that the clamping mechanism can accurately contact the embedded part. Fine-tune the lifting locator using the leveling bolts to ensure the equipment remains level and avoids tilting during lifting. Start the clamping drive device by operating the hydraulic system, causing the wedge-shaped jaws to slide along the slide rail and evenly clamp the embedded part. Ensure the clamping mechanism fully clamps the embedded part to prevent slippage or loosening during lifting. At this point, check the clamping force and make fine adjustments if necessary. Start the hydraulic system and slowly raise the lifting locator to suspend the embedded part. Ensure a smooth lifting process, avoiding excessively rapid raising and lowering to prevent unnecessary impact. Use the casters to move the equipment horizontally or vertically, adjusting the position of the lifting locator as needed to accurately lift the embedded part to the designated location. Fine-tune the position of the embedded part using the telescopic boom to ensure accurate positioning. Manual push-pull handles can be used for precise adjustments. Slowly adjust the position of the lifting locator using the hydraulic system to ensure accurate placement of the embedded part. After the embedded part is positioned, slowly release the clamping device using the hydraulic system. Ensure the jaws retract smoothly to avoid impact on the embedded part. After confirming complete release, slowly lower the lifting locator to safely place the embedded part in the designated location.
Claims
1. A large embedded component hoisting and positioning device, characterized in that, The device includes a lifting frame (10), a multi-point clamping mechanism (20), and a fine-tuning device (30). The lifting frame (10) consists of a main frame, at least one telescopic arm, and a hydraulic cylinder. The cylinder body of the hydraulic cylinder is fixed to the main frame, and the piston rod is connected to the telescopic arm to drive the telescopic arm to extend and retract longitudinally. The multi-point clamping mechanism (20) includes multiple clamping mechanisms arranged at intervals along the axial direction of the telescopic arm. Each clamping mechanism includes a wedge-shaped jaw, a jaw seat, and a clamping drive device. The wedge-shaped jaw is slidably installed in the jaw seat and, under the push of the clamping drive device, generates force towards the embedded part surface. The wedge force of the surface; the moving fine adjustment device (30) includes a universal wheel and a horizontal adjustment bolt set at the bottom of the main frame. The universal wheel is used for overall movement, and the horizontal adjustment bolt is used for precise adjustment of the level of the hoisting frame at the installation site; the hoisting frame (10), the multi-point clamping mechanism (20) and the moving fine adjustment device (30) are used to realize the clamping, hoisting, moving, fine adjustment and precise positioning of large embedded parts; the front end of the telescopic arm is provided with a detachable limit block. The block is a trapezoidal structure and is used to prevent the embedded part from slipping off along the axis of the telescopic arm during hoisting.
2. The large embedded part hoisting and positioning device according to claim 1, characterized in that, The main frame is a rectangular or trapezoidal three-dimensional frame welded from steel sections. A reinforcing crossbeam is provided at the bottom of the frame, and a hinge hole for mounting the hydraulic cylinder body is provided on the reinforcing crossbeam.
3. A large embedded part hoisting and positioning device according to claim 2, characterized in that, The telescopic arm has a box-shaped or I-shaped cross-section structure. Guide wheels or guide sliders are provided on both sides of the telescopic arm. The guide wheels or guide sliders are in rolling or sliding cooperation with the guide rails on the main frame to limit the lateral displacement of the telescopic arm and ensure the linearity of the telescopic movement.
4. A large embedded part hoisting and positioning device according to claim 3, characterized in that, The hydraulic cylinder is a double-acting hydraulic cylinder. The cylinder body is hinged to the main frame by a pin, and the piston rod is hinged to the rear end or middle of the telescopic boom by a pin. The stroke range of the hydraulic cylinder is set so that the telescopic boom's extension length covers the maximum and minimum distance required for the hoisting of the embedded part.
5. A large embedded part hoisting and positioning device according to claim 4, characterized in that, The wedge-shaped gripper includes a pair of symmetrically arranged wedges, each wedge having a friction surface that contacts the surface of the embedded part. The friction surface is provided with anti-slip teeth or a vulcanized rubber layer. The back of the wedges mates with the wedge-shaped slide of the gripper seat. The clamping drive device pushes the wedges along the slide and simultaneously moves the wedges closer to the surface of the embedded part to form a clamp.
6. A large embedded part hoisting and positioning device according to claim 5, characterized in that, The clamping drive device is one of a manual lead screw, a hydraulic push rod, or a mechanical cam. The output end of the clamping drive device is connected to the tail of the wedge block to realize clamping or releasing operations.
7. A large embedded part hoisting and positioning device according to claim 6, characterized in that, The clamping mechanisms are evenly arranged along the axial direction of the telescopic arm, and there are 2 to 6 sets. Each set of clamping mechanisms is detachably connected to the telescopic arm by bolts or quick pins to adapt to the clamping requirements of embedded parts of different lengths.
8. A large embedded part hoisting and positioning device according to claim 7, characterized in that, The casters are installed at the four corners of the bottom of the main frame. Each caster is equipped with a foot brake. Shock-absorbing pads or spring shock absorbers are installed between the casters and the main frame to absorb the impact during movement.
9. A large embedded part hoisting and positioning device according to claim 8, characterized in that, The leveling bolt includes a screw, an adjusting nut, and a support base plate. The screw passes vertically through a threaded hole at the bottom of the main frame and is connected to the support base plate. The adjusting nut is located between the lower surface of the main frame and the support base plate. By rotating the adjusting nut, the support base plate is raised or lowered, thereby achieving fine adjustment of the level of the main frame.
10. A large embedded part hoisting and positioning device according to claim 9, characterized in that, The main frame is equipped with lifting lugs and push-pull handles. The lifting lugs are used to connect with external lifting equipment, and the push-pull handles are used to manually push the positioner for short-distance movement.