Multifunctional detection device for combined lifting appliance of reach stacker

Abstract

The invention belongs to the technical field of equipment for reach stacker production, and particularly relates to a multifunctional detection device for a combined lifting appliance of a reach stacker, which comprises a base, a lifting arm strength detection assembly, a frame rotation stability detection assembly and a coil stock turnover stability detection assembly, the combined lifting appliance is composed of a rotary frame, a fastening bolt, a lifting arm and hanging assemblies, the rotary frame is provided with the lifting arm through the fastening bolt, and the hanging assemblies which are jointly used for bearing the coil stock are symmetrically installed on the two sides of the lifting arm; the upper side of the base is provided with a suspension arm strength detection assembly, and the lower side of the base is provided with a frame rotation stability detection assembly and a roll material overturning stability detection assembly. The device disclosed by the invention is reasonable in design, integrates multiple functions of strength detection of a static load test and a dynamic load test of a suspension arm, frame stability detection in a rotating process, steel coil overturning stability detection and the like, and meets diversified detection requirements of the combined lifting appliance of the reach stacker.

Description

Technical Field

[0001] This invention belongs to the technical field of equipment for front-end lifting production, specifically relating to a multi-functional testing device for front-end lifting assembly tools. Background Technology

[0002] A front-end lifting coil spreader is a specialized lifting device for the safe and efficient handling of steel coils, widely used in the steel, logistics, and manufacturing industries. Its core function is to ensure the steel coil remains balanced during transport through stable clamping and lifting, preventing slippage or tilting and thus guaranteeing operational safety. This spreader can accommodate steel coils of different diameters and weights, and its flexible adjustment mechanism meets diverse needs, significantly improving loading and unloading efficiency. In confined spaces or complex environments, the front-end lifting coil spreader's precise control is particularly outstanding, enabling high-precision positioning in conjunction with cranes and adapting to various operational scenarios such as production lines, warehousing, and transportation.

[0003] Traditional front-end lifting coils have the drawback of not being able to rotate the coil around its own axis during lifting. To address this, our company has designed a front-end lifting combination coil that can rotate the coil around its own axis during lifting, a feature that brings significant advantages to the production process. The rotation prevents internal stress concentration or deformation caused by prolonged unilateral force on the coil, which is especially important for sensitive materials such as hot-rolled coils. During processing or quality inspection, rotation facilitates quick adjustment of the coil's position, allowing for multi-angle inspections or processing without additional equipment, saving manpower and time costs. During loading, unloading, and transportation, the rotation function can flexibly adjust the coil's posture to meet vehicle or production line requirements, reducing the number of repeated lifting operations, lowering operational risks, and overall enhancing logistics efficiency and safety.

[0004] Existing testing devices cannot meet the requirements for static load testing and dynamic load testing of the boom of the aforementioned front-end lifting assembly, as well as the requirements for frame stability testing during rotation and steel coil turning stability testing. Therefore, the inventors aim to provide a multi-functional testing device for front-end lifting assemblies. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned problems existing in the prior art and to provide a multifunctional testing device for front-mounted combined lifting devices.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution: This invention provides a multifunctional testing device for a front-end lifting assembly, comprising a base, a boom strength testing component, a frame rotation stability testing component, and a coil overturning stability testing component; The combined lifting device consists of a slewing frame, fastening bolts, a boom, and a hanging assembly. The boom is mounted on the slewing frame via fastening bolts, and hanging assemblies for supporting the coiled material are symmetrically mounted on both sides of the boom. The upper side of the base is equipped with a boom strength testing component for static and dynamic load testing of the boom, and the lower side of the base is equipped with a frame rotation stability testing component for testing the stability of the rotating frame during rotation, and a roll roll turning stability testing component for testing the turning stability of the coil material supported by the suspension component.

[0007] Furthermore, in the aforementioned multifunctional testing device for front-end lifting combined spreaders, the rotating frame includes an annular mounting plate, a spreader rotating drive, a rectangular outer frame, a suspension sleeve, and a suspension ring. The rectangular outer frame is mounted on the lower side of the annular mounting plate via the spreader rotating drive. The suspension sleeve is mounted on the lower side of the annular mounting plate at the periphery of the spreader rotating drive. The suspension ring, which is movable and restricted within the suspension sleeve, is mounted on the upper side of the rectangular outer frame at the periphery of the spreader rotating drive. The annular mounting plate has several spreader mounting holes. Through-plate holes are opened at the center of the upper and lower plates of the rectangular outer frame. Two sets of external bolt holes for easy installation of fastening bolts are symmetrically opened on the front and rear side plates of the rectangular outer frame.

[0008] Furthermore, in the aforementioned multifunctional testing device for front-mounted combined lifting devices, the boom includes a rectangular inner frame, which passes through the interior of the rectangular outer frame. Several reinforcing plates are installed between the front and rear plates of the rectangular inner frame, and the front and rear plates of the rectangular inner frame are symmetrically provided with two sets of internal bolt holes for easy installation of fastening bolts.

[0009] Furthermore, in the aforementioned multifunctional testing device for a front-mounted combined lifting device, the lifting assembly includes a horizontal push rod, a sliding plate seat, a guide rod, a fixed lifting bracket, a tilting drive motor, a first steering gear box, a drive roller, a displacement drive motor, a second steering gear box, a lead screw, a movable lifting bracket, and a driven roller. The horizontal push rod and guide rod are supported by the boom. The sliding plate seat can move laterally along the guide rod under the push of the horizontal push rod. A fixed lifting bracket is fixed to the lower center of the sliding plate seat, and a tilting drive motor is installed on the outer side of the fixed lifting bracket. The output shaft of the drive motor drives the drive roller to rotate via the first steering gear set placed in the first steering gear box. The lower part of the slide block is movably supported by a lead screw. The upper part of the slide block is embedded with a displacement drive motor. The output shaft of the displacement drive motor drives the lead screw to rotate via the second steering gear set placed in the second steering gear box. The lead screw has two lead screw segments with opposite directions of rotation. A movable hanging frame is sleeved on the outer side of each lead screw segment. The top of the movable hanging frame is slidably restricted in the slide block. The bottom of the movable hanging frame movably supports a driven roller. The top of the fixed hanging bracket is provided with a grooved plate located outside the second steering gear box, and a lead screw clearance hole is provided in the grooved plate; The top of the movable hanging frame is supported by a vertical plate via a horizontal connecting plate. The top of the vertical plate is provided with a suspension head. The vertical plate has a screw groove that mates with the corresponding screw segment. Two suspension grooves are symmetrically provided on the lower side of the sliding plate seat. The suspension head slides and is restricted in the suspension groove.

[0010] Furthermore, in the aforementioned multifunctional testing device for front-end lifting assembly, the boom strength testing component includes a linear guide pair, a vertical plate seat, a movable plate seat, a testing rotary driver, a rotating plate, a push shaft, a counterweight box, a counterweight block, a hammer rod, a locking motor, a locking block, a pressure push rod, a pressure head, a bushing, a carrier ring, a protrusion, and a scissor-type straightening frame. The slide rail of the linear guide pair and the vertical plate seat are mounted on the upper side of the base. The movable plate seat is fixed to the upper side of the slider of the linear guide pair. The movable plate seat is supported by the testing rotary driver, and the rotating plate is connected to the counterweight box via the push shaft. The interior of the counterweight box... The sliding mechanism includes a counterweight block with a hammer rod mounted at its bottom. A locking motor is mounted on the outer side of the top plate of the counterweight box, and a locking block for locking the position of the counterweight block is mounted on the output end of the locking motor. The bottom plate of the counterweight box has a hammer rod outlet that mates with the hammer rod. A pressure push rod is mounted on the inner side of the counterweight box, and a pressure head is mounted on the movable end of the pressure push rod. A bushing that mates with the push shaft is embedded and fixed in the vertical plate seat. A carrier ring restricts the movement of the vertical plate seat. Protrusions are symmetrically mounted on the outer side of the counterweight box about the push shaft. A scissor-type straightening frame is installed between the protrusions and the carrier ring.

[0011] Furthermore, in the aforementioned multifunctional testing device for front-mounted combined lifting devices, the locking block is an elliptical block, and the cross-section of the counterweight block is a non-circular structure; the top of the counterweight box is provided with a locking groove composed of an upper elliptical groove and a lower circular groove, the shape of the upper elliptical groove matches the shape of the elliptical block, the diameter of the lower circular groove is equal to the major axis of the upper elliptical groove, and the depth of the lower circular groove matches the thickness of the locking block.

[0012] Furthermore, in the aforementioned multifunctional testing device for front-mounted combined lifting devices, the frame rotation stability testing component includes a mounting box embedded and fixed in a base. The upper side of the base has a threaded hole that mates with the mounting hole of the lifting device. The annular mounting plate of the rotating frame is mounted on the lower side of the base by fastening screws. The mounting box is located in the outer periphery of the annular mounting plate. The mounting box has a sliding cavity inside, in which a sliding plate is slidably restricted. A tension spring connects the lower side of the sliding plate to the bottom surface of the sliding cavity. A support rod penetrating the mounting box is fixed to the lower side of the sliding plate. A universal ball sleeve is provided at the bottom end of the support rod. A universal ball that can abut against a rectangular outer frame is movably restricted within the universal ball sleeve. A first micro-distance measuring sensor is embedded in the top wall of the mounting box in the sliding cavity. The first micro-distance measuring sensor can measure the distance between itself and the sliding plate.

[0013] Furthermore, in the aforementioned multifunctional testing device for front-end lifting assembly, the coil turning stability testing component includes a suspension seat, a suspension block, a suspension plate, a beam plate, a damping telescopic rod, a carrier sleeve, a balance column, an electromagnetic clutch, an anti-detachment shaft, a support rod, a support end plate, connecting bolts, a mounting end plate, a coil simulation model, and a second micro-measurement sensor. The suspension seat is fixed to the lower side of the base, and the suspension block is movablely restricted within the suspension seat. The lower side of the suspension block is detachably connected to the beam plate via a through-hole. The bottom end of the beam plate... A carrier sleeve is connected by multiple damping telescopic rods. A balance column is fixed in the carrier sleeve. Two anti-detachment shafts are symmetrically installed in the balance column. The inner ends of the two anti-detachment shafts are connected by an electromagnetic clutch. The outer ends of the anti-detachment shafts are connected to a support end plate by a support rod. An installation end plate is detachably attached to the support end plate by connecting bolts. A roll material simulation material is fixed to the outside of the installation end plate. A second micro-distance measuring sensor is provided at the outer end of the support rod, which extends into the inner cavity of the roll material simulation material. The second micro-distance measuring sensor can measure the distance between itself and the inner wall of the roll material simulation material.

[0014] Furthermore, in the aforementioned multifunctional detection device for front-mounted combined lifting devices, a central through hole is provided at the center of the mounting end plate to facilitate the entry of the second micro-measuring sensor. The mounting end plate is provided with several limiting through holes around the central through hole. The diameter of the limiting through holes is 1.5 to 2 times the diameter of the rod part of the connecting bolt. The mounting end plate can radially move relative to the supporting end plate with the coiled material simulation.

[0015] Furthermore, the aforementioned multifunctional testing device for front-end lifting assembly also includes a controller, which is connected to the boom strength testing component, the frame rotation stability testing component, and the coil overturning stability testing component, respectively.

[0016] The beneficial effects of this invention are: 1. Comprehensive functions: It integrates multiple functions such as static load testing and dynamic load testing of the boom, frame stability testing during rotation, and steel coil flipping stability testing, meeting the diverse testing needs of front-end lifting modular spreaders.

[0017] 2. Improve operational safety: By testing, ensure the stability of the lifting equipment during lifting, turning and other operations, avoid problems such as steel coil slippage, tilting or deformation due to uneven force, and ensure operational safety.

[0018] 3. Improved Production Efficiency: The detection device can promptly identify problems with the lifting equipment, reducing production interruptions caused by lifting equipment malfunctions. Simultaneously, the flipping function helps optimize the production process, saving labor and time costs and enhancing logistics efficiency. The ingeniously designed and coordinated detection components accurately measure various parameters, providing reliable data for lifting equipment performance evaluation.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram illustrating the overall usage state of the present invention; Figure 2 This is a schematic diagram of the combined lifting device in this invention; Figure 3 This is an exploded view of the combined lifting device in this invention; Figure 4 This is a schematic diagram of the rotating frame in this invention; Figure 5 This is a schematic diagram of the boom structure in this invention; Figure 6 This is a schematic diagram of the hanging assembly in this invention; Figure 7 This is a side view of the suspension assembly in this invention; Figure 8 This is a schematic diagram of the structure of the fixed hanging bracket in this invention; Figure 9 This is a schematic diagram of the movable hanging frame in this invention; Figure 10 This is a schematic diagram of the overall structure of the present invention; Figure 11 This is a schematic diagram of the boom strength detection component in this invention; Figure 12 This is a schematic diagram of the structure of the rotary drive detection device in this invention; Figure 13 This is a schematic diagram of the locking block in this invention; Figure 14 This is a schematic diagram of the structure of the counterweight block in this invention; Figure 15 This is a schematic diagram of the frame rotation stability detection component in this invention; Figure 16 This is a schematic diagram of the structure of the roll material tumbling stability detection component in this invention; In the attached diagram, the components represented by each number are as follows: 1-Base; 2-Boom strength testing assembly, 201-Linear guide pair, 202-Vertical plate seat, 203-Modible plate seat, 204-Detection rotary drive, 205-Rotating plate, 206-Push shaft, 207-Flag box, 208-Flag block, 208a-Upper elliptical groove, 208b-Lower circular groove, 209-Hammer rod, 210-Locking motor, 211-Locking block, 212-Hammer rod outlet, 213-Pressure push rod, 214-Pressure head, 215-Shaft sleeve, 216-Carrier ring, 217-Protrusion, 218-Scissor lift straightening frame; 3-Frame rotational stability detection component, 301-Mounting box, 302-Sliding cavity, 303-Slide plate, 304-Tension spring, 305-Support rod, 306-Universal ball sleeve, 307-Universal ball, 308-First micro-measuring sensor; 4-Roll material turning stability detection component, 401-Suspension seat, 402-Suspension block, 403-Suspension plate, 404-Beam plate, 405-Damping telescopic rod, 406-Carrier sleeve, 407-Balance column, 408-Electromagnetic clutch, 409-Anti-detachment shaft, 410-Support rod, 411-Support end plate, 412-Connecting bolt, 413-Mounting end plate, 414-Roll material simulation object, 415-Second micro-distance measurement sensor; 5-Slewing frame, 501-Annular mounting plate, 502-Spreader slewing drive, 503-Rectangular outer frame, 504-Suspension sleeve, 505-Suspension ring, 506-Spreader mounting hole, 507-Through hole, 508-Outer bolt hole; 6-Fastening bolts; 7-Boom, 701-Rectangular inner frame, 702-Reinforcing plate, 703-Inner bolt hole; 8-Suspension assembly, 801-Horizontal push rod, 802-Slide plate seat, 803-Guide rod, 804-Fixed suspension bracket, 804a-Slotted plate, 804b-Screw clearance hole, 805-Tilting drive motor, 806-First steering gear box, 807-Drive roller, 808-Displacement drive motor, 809-Second steering gear box, 810-Modible suspension bracket, 810a-Horizontal connecting plate, 810b-Vertical plate, 810c-Suspension head, 810d-Screw groove, 811-Driven roller, 812-Screw. Detailed Implementation

[0022] 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.

[0023] like Figure 1 and Figure 10 As shown, this embodiment provides a multi-functional testing device for a front-mounted lifting assembly, including a base 1, a boom strength testing component 2, a frame rotation stability testing component 3, and a coil roll turning stability testing component 4. The upper side of the base 1 is equipped with the boom strength testing component 2 for static and dynamic load testing of the boom 7. The lower side of the base 1 is equipped with the frame rotation stability testing component 3 for detecting the stability of the rotating frame during rotation, and the coil roll turning stability testing component 4 for detecting the turning stability of the coil supported by the suspension assembly 8.

[0024] like Figure 2 and Figure 3 As shown, the combined lifting device consists of a slewing frame 5, fastening bolts 6, boom 7 and hanging assembly 8. The boom 7 is installed on the slewing frame 5 by fastening bolts 6, and the hanging assembly 8, which is used to support the coiled material, is symmetrically installed on both sides of the boom 7.

[0025] like Figure 4As shown, the slewing frame 5 includes an annular mounting plate 501, a lifting device slewing drive 502, a rectangular outer frame 503, a suspension sleeve 504, and a suspension ring 505. The rectangular outer frame 503 is mounted on the lower side of the annular mounting plate 501 via the lifting device slewing drive 502. The suspension sleeve 504 is mounted on the lower side of the annular mounting plate 501 at the periphery of the lifting device slewing drive 502. The suspension ring 505, which is movable and restricted within the suspension sleeve 504, is mounted on the upper side of the rectangular outer frame 503 at the periphery of the lifting device slewing drive 502. The annular mounting plate 501 has several lifting device mounting holes 506. Through-plate holes 507 are provided at the center of the upper and lower plates of the rectangular outer frame 503. Two sets of external bolt holes 508 are symmetrically provided on the front and rear side plates of the rectangular outer frame 503 for installing fastening bolts 6.

[0026] like Figure 5 As shown, the boom 7 includes a rectangular inner frame 701, which is inserted inside the rectangular outer frame 503. Several reinforcing plates 702 are installed between the front and rear plates of the rectangular inner frame 701. The front and rear plates of the rectangular inner frame 701 are symmetrically provided with two sets of inner bolt holes 703 for easy installation of fastening bolts 6.

[0027] like Figure 6 and Figure 7 As shown, the suspension assembly 8 includes a horizontal push rod 801, a slide block 802, a guide rod 803, a fixed suspension bracket 804, a tilting drive motor 805, a first steering gear box 806, a drive roller 807, a displacement drive motor 808, a second steering gear box 809, a lead screw 812, a movable suspension bracket 810, and a driven roller 811. The horizontal push rod 801 and the guide rod 803 are supported by the boom 7. The slide block 802 can be laterally displaced along the guide rod 803 under the push of the horizontal push rod 801. The fixed suspension bracket 804 is fixed to the lower center of the slide block 802. The tilting drive motor 805 is installed on the outer side of the fixed suspension bracket 804. The output shaft of the tilting drive motor 805 drives the drive roller 807 to rotate via a first steering gear set placed in the first steering gear box 806. The lower part of the slide base 802 is movably supported by a lead screw 812, and the upper part of the slide base 802 is embedded with a displacement drive motor 808. The output shaft of the displacement drive motor 808 drives the lead screw 812 to rotate via a second steering gear set located in the second steering gear box 809. The lead screw 812 has two lead screw sections with opposite directions of rotation. A movable hanger 810 is sleeved on the outer side of each lead screw section. The top of the movable hanger 810 is slidably restricted in the slide base 802, and the bottom of the movable hanger 810 is movably supported by a driven roller 811.

[0028] like Figure 8 As shown, the top of the fixed hanging bracket 804 is provided with a groove plate 804a located outside the second steering gear box 809, and a lead screw clearance hole 804b is provided in the groove plate 804a.

[0029] like Figure 9 As shown, the top of the movable hanging bracket 810 is supported by a vertical plate 810b via a horizontal connecting plate 810a. A suspension head 810c is located at the top of the vertical plate 810b, and a screw groove 810d is formed in the vertical plate 810b to mate with a corresponding screw segment. Two suspension grooves are symmetrically formed on the lower side of the sliding plate seat 802, and the suspension head 810c slides within these grooves.

[0030] The working principle of the hanging assembly 8 is as follows: the horizontal push rod 801 is used to adjust the position of the slide plate seat 802 to meet the clamping requirements of different widths of material rolls; the displacement drive motor 808, the second steering gear box 809, and the lead screw 812 are used to adjust the distance between the two movable hanging frames 810, thereby adjusting the distance between the two driven rollers 811 and the drive roller 807 to meet the support requirements of material rolls with different outer diameters; the flip drive motor 805 is used to drive the drive roller 807 to rotate, thereby causing the supported material roll to flip around the axis.

[0031] like Figure 11 As shown, the boom strength testing assembly 2 includes a linear guide pair 201, a vertical plate seat 202, a movable plate seat 203, a testing rotary driver 204, a rotating plate 205, a push shaft 206, a counterweight box 207, a counterweight block 208, a hammer rod 209, a locking motor 210, a locking block 211, a pressure push rod 213, a pressure head 214, a bushing 215, a carrier ring 216, a protrusion 217, and a scissor-type straightening frame 218. The slide rail of the linear guide pair 201 and the vertical plate seat 202 are installed on the upper side of the base 1. The movable plate seat 203 is fixed on the upper side of the slider of the linear guide pair 201. The movable plate seat 203 is supported by the testing rotary driver 204 and the rotating plate 205 is connected to the counterweight box 207 via the push shaft 206. The internal sliding restraint of the counterweight box 207 is provided by a counterweight block 208. A hammer rod 209 is installed at the bottom end of the counterweight block 208. A locking motor 210 is installed on the outer side of the top plate of the counterweight box 207. A locking block 211 for locking the position of the counterweight block 208 is installed at the output end of the locking motor 210. The bottom plate of the counterweight box 207 has a hammer rod outlet 212 that cooperates with the hammer rod 209. A pressure push rod 213 is installed on the inner side of the counterweight box 207. A pressure head 214 is installed on the movable end of the pressure push rod 213. A bushing 215 that cooperates with the push shaft 206 is embedded and fixed in the vertical plate seat 202. A carrier ring 216 restricts the movement of the vertical plate seat 202. Protrusions 217 are symmetrically installed on the outer side of the counterweight box 207 about the push shaft 206. A scissor-type straightening frame 218 is installed between the protrusions 217 and the carrier ring 216.

[0032] The structure of the rotary drive 204 is as follows: Figure 12 As shown.

[0033] like Figure 13 and Figure 14As shown, the locking block 211 is an elliptical block, and the cross-section of the counterweight block 208 is a non-circular structure; the top of the counterweight box 207 is provided with a locking groove composed of an upper elliptical groove 208a and a lower circular groove 208b. The shape of the upper elliptical groove 208a matches the shape of the elliptical block, the diameter of the lower circular groove 208b is equal to the major axis of the upper elliptical groove 208a, and the depth of the lower circular groove 208b matches the thickness of the locking block 211.

[0034] In this embodiment, the working principle of the boom strength detection component 2 is as follows: Adjustment of boom detection point: The boom 7 is rotated by the slewing frame 5, and the landing point of the pressure head 214 and the counterweight box 207 is adjusted by the linear guide pair 201, thereby realizing the adjustment of the boom detection point.

[0035] Static load test: The locking motor 210 drives the locking block 211 to lock the position of the counterweight block 208. The pressure push rod 213 pushes the pressure head 214 to apply pressure to the counterweight block 208 to simulate static load. The static load strength is detected by observing the deformation of the boom 7.

[0036] Dynamic load test: The locking block 211 is released from the lock on the counterweight block 208. Under the action of gravity, the counterweight block 208 slides down the counterweight box 207, and the hammer rod 209 extends from the hammer rod outlet 212 to impact the boom 7, simulating dynamic load and testing the dynamic load strength of the boom 7. The scissor lift straightening frame 218 ensures the stability of the counterweight box 207 during movement.

[0037] like Figure 15 As shown, the frame rotation stability detection component 3 includes a mounting box 301 embedded and fixed in the base 1. The upper side of the base 1 has a threaded hole that matches the position of the lifting device mounting hole 506. The annular mounting plate 501 of the rotating frame 5 is mounted on the lower side of the base 1 by fastening screws. The mounting box 301 is located in the outer area of ​​the annular mounting plate 501. The mounting box 301 has a sliding cavity 302 inside, and a sliding plate 303 is slidingly restricted in the sliding cavity 302. The lower side of the sliding plate 303 and the sliding plate 303 are connected to the sliding plate 303. A tension spring 304 is connected between the bottom surfaces of cavity 302. A support rod 305 that passes through mounting box 301 is fixed to the lower side of slide plate 303. A universal ball sleeve 306 is provided at the bottom end of support rod 305. Universal ball sleeve 306 restricts the movement of universal ball 307 that can abut against rectangular outer frame 503. A first micro-distance measurement sensor 308 is embedded in the top wall of mounting box 301 located in sliding cavity 302. The first micro-distance measurement sensor 308 can measure the distance between itself and slide plate 303.

[0038] In this embodiment, the working principle of the frame rotational stability detection component 3 is as follows: The annular mounting plate 501 of the rotating frame 5 is mounted on the lower side of the base 1 by fastening screws. When the rotating frame 5 rotates, the rectangular outer frame 503 will bounce up and down due to the unstable rotation.

[0039] When the rectangular outer frame 503 bounces, it pushes the omnidirectional ball 307. The omnidirectional ball 307 drives the slide plate 303 to slide in the sliding cavity 302 through the omnidirectional ball sleeve 306 and the support rod 305, and the tension spring 304 is stretched or compressed.

[0040] The first macro measurement sensor 308 measures the distance between itself and the slide plate 303, and judges the stability of the rotation of the rotating frame 5 by the change in distance.

[0041] like Figure 16 As shown, the roll material tumbling stability detection component 4 includes a suspension seat 401, a suspension block 402, a suspension plate 403, a beam plate 404, a damping telescopic rod 405, a carrier sleeve 406, a balance column 407, an electromagnetic clutch 408, an anti-detachment shaft 409, a support rod 410, a support end plate 411, a connecting bolt 412, a mounting end plate 413, a roll material simulation 414, and a second micro-distance measurement sensor 415. The suspension seat 401 is fixed to the lower side of the base 1. The suspension block 402 is movable and restricted in the suspension seat 401. The lower side of the suspension block 402 is detachably connected to the beam plate 404 through the suspension plate 403 via the through-hole 507. The bottom end of the beam plate 404 is connected to the carrier sleeve 406 via multiple damping telescopic rods 405. A balance column 407 is fixed in the carrier sleeve 406. Two anti-detachment shafts 409, which can move around their own axes, are symmetrically installed in the balance column 407. The inner ends of the two anti-detachment shafts 409 are connected by an electromagnetic clutch 408. The outer ends of the anti-detachment shafts 409 are connected to a support end plate 411 via a support rod 410. The outer diameter of the anti-detachment shaft 409 is larger than the outer diameter of the support rod 410. A mounting end plate 413 is detachably connected to the support end plate 411 via connecting bolts 412. A roll material simulation material 414 is fixed to the outer side of the mounting end plate 413. A second micro-distance measuring sensor 415 is provided at the outer end of the support rod 410, extending into the inner cavity of the roll material simulation material 414. The second micro-distance measuring sensor 415 can measure the distance between itself and the inner wall of the roll material simulation material 414.

[0042] In this embodiment, a central through hole is provided at the center of the mounting end plate 413 to facilitate the entry of the second micro-measuring sensor 415. Several limiting through holes are provided around the central through hole in the mounting end plate 413. The diameter of the limiting through holes is 1.5 to 2 times the diameter of the rod part of the connecting bolt 412. The mounting end plate 413 can move radially relative to the supporting end plate 411 with the coiled material simulation 414.

[0043] In this embodiment, the working principle of the roll overturning stability detection component 4 is as follows: The suspension block 402 moves within the suspension seat 401, and the suspension plate 403 is detachably connected to the beam plate 404 through the through-plate hole 507. The beam plate 404 is connected to the carrier sleeve 406 via a damping telescopic rod 405. An anti-detachment shaft 409 is installed on the balance column 407 in the carrier sleeve 406. The two anti-detachment shafts 409 are connected via an electromagnetic clutch 408, and their outer ends are connected to the support end plate 411 via a support rod 410.

[0044] The support end plate 411 is detachably connected to the mounting end plate 413 via connecting bolts 412, and the coil simulation 414 is fixed to the outside of the mounting end plate 413. When the hanging assembly 8 drives the coil simulation 414 to rotate, if the rotation is not smooth, the coil simulation 414 will produce radial runout.

[0045] The second micro-distance measuring sensor 415 extends into the inner cavity of the coil simulation material 414 to measure the distance between itself and the inner wall of the coil simulation material 414, and judges the smoothness of the coil tumbling by the change in distance. When the electromagnetic clutch 408 is de-energized, the coil simulation materials 414 on both sides rotate independently, and the smoothness of their coil tumbling is detected separately; when the electromagnetic clutch 408 is energized, the coil simulation materials 414 on both sides are connected as one, and the smoothness of the tumbling at both ends of the coil is detected separately.

[0046] In this embodiment, the device also includes a controller, which is connected to the boom strength detection component 2, the frame rotation stability detection component 3, and the coil overturning stability detection component 4 respectively. The controller receives data from each detection component, analyzes and processes it, and judges whether the performance of the lifting device is qualified according to the preset standard. At the same time, it can control and adjust the detection process.

[0047] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multifunctional detection device for a spreader of a reach stacker, characterized in that, The base, the boom strength detection assembly, the frame rotation stability detection assembly and the coil turnover stability detection assembly are arranged on the base. The combined lifting device is composed of a rotating frame, fastening bolts, a boom and a hanging assembly. The boom strength detection assembly is arranged on the upper side of the base for static load test and dynamic load test of the boom.

2. The multifunctional detection device for the combined spreader of the reach stacker according to claim 1, characterized in that, The rotating frame comprises an annular mounting plate, a lifting device rotating driver, a rectangular outer frame, a suspension sleeve and a suspension ring.

3. The multifunctional detection device for the combined spreader of the reach stacker according to claim 2, characterized in that, The boom comprises a rectangular inner frame which is arranged in the rectangular outer frame.

4. The multifunctional detection device for the combined spreader of the reach stacker according to claim 3, characterized in that, The hanging assembly comprises a horizontal push rod, a slide plate base, a guide rod, a fixed hanging frame, a turnover driving motor, a first steering gear box, a driving roller, a displacement driving motor, a second steering gear box, a screw rod, a movable hanging frame and a driven roller. The horizontal push rod and the guide rod are supported by the boom. The slide plate base can be laterally displaced along the guide rod under the pushing of the horizontal push rod. The lower middle part of the slide plate base is fixed with the fixed hanging frame. The outer side of the fixed hanging frame is provided with the turnover driving motor. The output shaft of the turnover driving motor drives the driving roller to rotate through the first steering gear set arranged in the first steering gear box. The lower part of the slide plate base movably supports the screw rod. The upper part of the slide plate base is embedded with the displacement driving motor. The output shaft of the displacement driving motor drives the screw rod to rotate through the second steering gear set arranged in the second steering gear box. The screw rod is provided with two screw rod segments with opposite rotation directions. The outer side of each screw rod segment is sleeved with the movable hanging frame. The top of the movable hanging frame is slidingly limited in the slide plate base. The bottom of the movable hanging frame movably supports the driven roller.

5. The multifunctional detection device for the combined spreader of the reach stacker according to claim 4, characterized in that, The cantilever strength detection assembly comprises a linear guide pair, a vertical plate base, a movable plate base, a detection rotary driver, a rotating plate, a push shaft, a weight box, a weight block, a hammer rod, a locking motor, a locking block, a pressure applying push rod, a pressure head, a shaft sleeve, a load ring, a protruding block and a scissor type righting frame, the slide rail of the linear guide pair and the vertical plate base are installed on the upper side of the base, the upper side of the slide block of the linear guide pair is fixed with the movable plate base, the movable plate base is supported with the rotating plate through the detection rotary driver, the rotating plate is connected with the weight box through the push shaft, the weight block is slidably limited in the weight box, the hammer rod is installed at the bottom end of the weight block, the locking motor is installed on the outer side of the top plate of the weight box, the locking block for locking the position of the weight block is installed at the output end of the locking motor, and the hammer rod outlet matched with the hammer rod is formed in the bottom plate of the weight box; the pressure applying push rod is installed on the inner side of the weight box, and the pressure head is installed at the movable end of the pressure applying push rod; the shaft sleeve matched with the push shaft is embedded and fixed in the vertical plate base, the load ring is movably limited on the outer side of the vertical plate base, the protruding blocks are symmetrically installed on the outer side of the weight box about the push shaft, and the scissor type righting frame is installed between the protruding blocks and the load ring.

6. The multifunctional detection device for the combined spreader of the reach stacker according to claim 5, characterized in that, The locking block is an oval block, and the cross section of the weight block is a non-circular structure; the top of the weight box is provided with a locking groove composed of an upper oval groove and a lower circular groove, the shape of the upper oval groove is matched with the shape of the oval block, the diameter of the lower circular groove is equal to the major axis of the upper oval groove, and the depth of the lower circular groove is matched with the thickness of the locking block.

7. The multifunctional detection device for the combined spreader of the reach stacker according to claim 6, characterized in that, The frame rotation stability detection assembly comprises an installation box embedded and fixed in the base, a threaded hole matched with the position of the lifting device mounting hole is formed in the upper side of the base, the annular mounting plate of the rotary frame is installed on the lower side of the base through fastening screws, and the installation box is located in the peripheral area of the annular mounting plate; a sliding cavity is arranged in the installation box, a sliding plate is slidably limited in the sliding cavity, a tension spring is connected between the lower side of the sliding plate and the bottom surface of the sliding cavity, a supporting rod penetrating through the installation box is fixed on the lower side of the sliding plate, a universal ball sleeve is arranged at the bottom end of the supporting rod, a universal ball capable of abutting against the rectangular outer frame is movably limited in the universal ball sleeve, a first micro-distance measurement sensor is embedded and installed on the top wall of the installation box in the sliding cavity, and the first micro-distance measurement sensor can measure the distance between the first micro-distance measurement sensor and the sliding plate.

8. The multifunctional detection device for the combined spreader of the reach stacker according to claim 7, characterized in that, The roll material overturning stability detection assembly comprises a hanging seat, a hanging block, a hanging plate, a beam plate, a damping telescopic rod, a load sleeve, a balance column, an electromagnetic clutch, an anti-dropping shaft, a support rod, a support end plate, a connecting bolt, a mounting end plate, a roll material simulation object and a second micro-distance measurement sensor, the hanging seat is fixed on the lower side of the base, the hanging block is movably limited in the hanging seat, the lower side of the hanging block is detachably connected with the beam plate through the hanging plate penetrating the through plate hole, the bottom end of the beam plate is connected with the load sleeve through the damping telescopic rods, the load sleeve is fixed with the balance column, two anti-dropping shafts are symmetrically installed in the balance column, the inner ends of the two anti-dropping shafts are connected through the electromagnetic clutch, the outer ends of the anti-dropping shafts are connected with the support end plate through the support rod, the support end plate is detachably connected with the mounting end plate through the connecting bolt, the outer side of the mounting end plate is fixed with the roll material simulation object, the outer end of the support rod is provided with the second micro-distance measurement sensor extending into the inner cavity of the roll material simulation object, and the second micro-distance measurement sensor can measure the distance between the second micro-distance measurement sensor and the inner wall of the roll material simulation object.

9. The multifunctional detection device for the combined spreader of the reach stacker according to claim 8, characterized in that, A center through hole is formed in the center of the mounting end plate, the mounting end plate is provided with a plurality of limiting through holes around the center through hole, the hole diameter of the limiting through hole is 1.5-2 times the diameter of the rod part of the connecting bolt, and the mounting end plate can radially jump with the roll material simulation object relative to the support end plate.

10. The multifunctional detection device for the combined spreader of the reach stacker according to claim 9, characterized in that, The controller is connected with the boom strength detection assembly, the frame rotation stability detection assembly and the roll material overturning stability detection assembly.

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