Special crane clamp device for high-purity titanium collecting tower

Abstract

The invention discloses a special crane clamp device for a high-purity titanium collecting tower. The special crane clamp device comprises a lifting structure, a guide structure, a supporting structure, a clamping structure and a locking structure. The lifting structure is connected with the traveling crane hoisting mechanism through a movable pulley and a steel cable to realize lifting of the clamp; the guiding structure comprises a guiding cone and a guiding sleeve, and guiding butt joint and buffering positioning are achieved. The supporting structure provides stable supporting through a flange base and a plurality of supporting legs. The clamping structure is matched with the guide groove through a three-jaw clamp to stably clamp the collecting tower; and the locking structure is meshed and matched with the locking groove through the locking rod, so that the locking control of the lifting state is realized. The device is convenient to operate, accurate in positioning and firm in clamping, obviously improves the hoisting efficiency and safety, and is suitable for quick transfer and reuse of the collection tower in the high-purity titanium molten salt electrolysis process.

Description

Technical Field

[0001] This invention relates to the field of metallurgical special equipment technology, specifically a special gantry crane clamp device for automated transfer of vacuum collection towers in high-purity titanium electrolysis production lines, which is particularly suitable for hoisting scenarios of ton-sized sealed containers that require precise docking, pollution prevention, and anti-swaying. Background Technology

[0002] In the preparation of high-purity metallic materials, especially high-purity titanium produced by molten salt electrolysis, specific equipment is often required for collection, cooling, and transfer operations to ensure product purity, transfer efficiency, and system continuity. Throughout the process, the collection tower plays a crucial role, undertaking multiple tasks such as initial collection of high-purity titanium, atmosphere isolation, pressure conversion, and transfer after cooling.

[0003] Because collection towers typically need to be frequently disassembled from high-temperature reaction units and transferred to cooling stations before being returned to their original positions for reuse, high demands are placed on the stability, safety, and operational efficiency of the hoisting process. However, in actual use, some existing transfer methods have failed to systematically address issues such as inaccurate positioning of the collection tower, insecure clamping, low operational efficiency, and insufficient safety guarantees for operators. These problems are particularly prominent in production scenarios where the collection tower undergoes frequent repetitive operations, affecting the overall work cycle and increasing potential risks.

[0004] To address the aforementioned needs, there is an urgent need for a specialized lifting clamp device with good compatibility, safety, and ease of operation to adapt to the structural characteristics of the collection tower, improve the automation and safety of the operation process, and support the development of the high-purity titanium electrolysis industry towards large-scale and intelligent operation. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a high-purity titanium collection tower special gantry crane clamp device that is compact in structure, safe to operate, stable in clamping, and suitable for high-frequency hoisting operations.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a special gantry crane clamp device for high-purity titanium collection towers, comprising:

[0007] The lifting structure includes two sets of movable pulleys mounted on the top support of the clamp, a lifting steel cable connecting the movable pulleys, and a gantry crane mechanism for driving the lifting steel cable;

[0008] A guide structure is provided on a support plate below the top bracket of the fixture. The guide structure includes a guide cone and a guide sleeve arranged coaxially. The guide cone is telescopically nested in the guide sleeve, and the telescopic stroke is greater than 1m.

[0009] A support structure, comprising a bottom flange seat and at least three legs evenly distributed along the circumference of the bottom flange seat, the bottom flange seat being fixedly arranged at the lower end of the support plate;

[0010] A clamping structure, comprising three sets of three-jaw clamps distributed along the circumference, guide wheels arranged on the three-jaw clamps, guide grooves fixedly connected to the bottom flange seat, and connecting members connecting the three-jaw clamps and the lifting structure, the guide wheels being horizontally slidingly limited in the guide grooves;

[0011] A locking structure, comprising a locking groove fixedly connected to the bottom flange seat and a rotatable locking rod, the bottom end of the locking rod being provided with a locking block;

[0012] The lifting structure drives the three-jaw clamps to open and close along the guide groove through the connecting members, so that the three-jaw clamps clamp or release the hoisting flange of the collection tower;

[0013] The rotational movement of the locking rod is linked with the lifting of the lifting structure, so that the locking block can be selectively engaged with or separated from the locking groove.

[0014] Further, the guide structure further comprises a guide column vertically penetrating the bottom flange seat and a guide hole matched therewith, the guide hole being arranged on the top bracket of the clamp for constraining the vertical displacement path between the top bracket of the clamp and the support plate.

[0015] Further, the number of legs of the support structure is three, which are distributed at an angle of 120° with the center of the bottom flange seat as the center, and the diameter of the circumscribed circle of the end of the leg is equal to the outer diameter of the hoisting flange of the collection tower.

[0016] Further, the distribution position of the three-jaw clamps is staggered by an angle of 60° with the legs, so that the clamping area of the three-jaw clamps and the supporting area of the legs are alternately distributed in the circumferential direction.

[0017] Further, the locking rod comprises a pressing rod, a sleeve, and a top rod, the bottom end of the top rod being provided with the locking block, and the locking block being driven to rotate by 90° by pressing the locking rod once; a rectangular lock hole is formed at the top of the locking groove, and the locking block can pass through the rectangular lock hole when it is rotated to be parallel to the rectangular lock hole.

[0018] Further, when the locking block passes through the rectangular lock hole to reach the bottom of the locking groove, it is rotated by 90° to form an orthogonal clamping with the side wall of the locking groove, at this time, the three-jaw clamps are in the maximum open position.

[0019] Further, when the lifting structure is lowered to the limit position, the lock block is completely separated from the locking groove, and the guide wheel of the three-jaw clamp is located at the outermost end of the guide groove; when the lifting structure is raised, the guide wheel drives the three-jaw clamp to tightly embrace the edge of the collection tower flange along the guide groove.

[0020] Further, the guide cone and the guide sleeve are made of high-rigidity alloy material, and the telescopic fitting gap is less than or equal to 0.5 mm.

[0021] Further, the connecting piece is connected with the three-jaw clamp through a hinged shaft, and the lifting movement of the lifting structure is converted into the radial sliding of the three-jaw clamp in the guide groove.

[0022] The present application has the following beneficial effects:

[0023] (1) The operation safety is significantly improved: by setting the lifting structure and the clamping structure linked with the row hoist, manual binding of the hoisting belt or the steel cable at a high place is avoided, and the safety risks such as high-altitude falling are effectively reduced.

[0024] (2) The hoisting efficiency is high: the device adopts the three-jaw clamp to cooperate with the guide groove for rapid clamping, and the flexible docking function of the guide cone and the guide sleeve can complete the hoisting positioning and transfer operation in a short time, and the turnover efficiency of the collection tower is significantly improved.

[0025] (3) The clamping stability is strong: the three-point clamping structure is combined with the guide wheel limiting design to ensure the posture stability of the collection tower during lifting, moving and landing, and to avoid damage or inaccurate positioning caused by shaking or deviation.

[0026] (4) The structure has strong adaptability: the telescopic stroke of the guide structure is more than 1 meter, which can adapt to the collection tower structures of different specifications or height errors, and has good universality and engineering adaptability.

[0027] (5) The locking control is reliable: the mechanical linkage of the lock rod and the locking groove realizes reliable locking of the clamp state, avoids the risk of loosening during hoisting, and improves the controllability and safety redundancy of the whole hoisting process.

[0028] (6) Meet the intelligent production demand: the device structure is reasonable, which is suitable for batch operation and automation transformation in the high-purity titanium molten salt electrolysis production process, and supports the development of the industry towards safety, efficiency and informatization. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 is the isometric view of the row hoist clamp device for the high-purity titanium collection tower in the present application;

[0030] Fig. 2 is the front view of the row hoist clamp device for the high-purity titanium collection tower in the present application;

[0031] Fig. 3 is the top view of the special row and hang clamp device for high-purity titanium collection tower in the application.

[0032] Reference signs: 1, lifting structure; 11, movable pulley; 2, guide structure; 21, guide cone; 22, guide sleeve; 23, guide column; 24, guide hole; 3, support structure; 31, bottom flange seat; 32, leg; 4, clamping structure; 41, three-jaw clamp; 42, guide wheel; 43, guide groove; 5, locking structure; 51, lock rod; 53, locking groove; 6, collection tower hoisting flange; 7, clamp top support; 8, support plate. DETAILED DESCRIPTION

[0033] The application will be further described in detail below in conjunction with the drawings and examples. Identical parts are denoted by identical reference signs. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0034] Example 1, with reference to Figs. 1 to 3 As the first embodiment of the application, the embodiment provides a special row and hang clamp device for high-purity titanium collection tower, which is suitable for safe, fast and accurate hoisting and shifting operation of the collection tower in the high-purity titanium molten salt electrolysis process.

[0035] The row and hang clamp device mainly includes: a lifting structure 1, a guide structure 2, a support structure 3, a clamping structure 4 and a locking structure 5.

[0036] The lifting structure 1 is arranged on the clamp top support 7 and includes two groups of movable pulleys 11, a lifting steel cable connected with the movable pulleys 11, and a row and hang hoisting mechanism for driving the lifting steel cable. The lifting steel cable is lifted and lowered to realize the lifting or lowering of the whole clamp device.

[0037] The guide structure 2 is arranged on the support plate 8 below the clamp top support 7 and includes a guide cone 21 and a guide sleeve 22 arranged coaxially, the guide cone 21 being telescopically nested in the guide sleeve 22, the telescopic stroke being greater than 1 m, for buffering and guiding during the clamp alignment process, to ensure the precise butt joint between the collection tower and the clamp.

[0038] The support structure 3 includes a bottom flange seat 31 and three legs 32 evenly distributed along the circumference of the flange seat, the legs 32 providing structural support after the clamp contacts the hoisting flange.

[0039] The clamping structure 4 comprises three groups of three-jaw clamps 41 distributed circumferentially, the ends of the clamps are provided with guide wheels 42 which are limited to slide horizontally in guide grooves 43 fixed on the bottom flange seat 31; the clamps are connected to the lifting structure 1 through connecting members. When the lifting cable is lifted, the connecting members drive the guide wheels 42 inside the three-jaw clamps 41 to slide radially in the guide grooves 43, realizing the clamping or loosening action of the three-jaw clamps 41.

[0040] The locking structure 5 is arranged on the bottom flange seat 31 and comprises a locking groove 53 and a rotatable locking rod 51, the bottom end of the locking rod 51 is provided with a locking block for realizing the mechanical limiting control of the unlocking or locking state of the clamp. The rotating movement of the locking rod 51 is linked with the lifting action of the lifting structure 1.

[0041] The working principle of the embodiment 1 is as follows:

[0042] When it is needed to hoist and transfer a certain high-purity titanium collection tower, the operator inputs the coordinate position of the collection tower through the intelligent crane remote controller, and the crane clamp device will automatically move to the top of the target collection tower under the system control.

[0043] Subsequently, the lifting structure 1 drives the lifting cable to be lowered, driving the entire clamp device to slowly descend, the guide cone 21 of the guide structure 2 is in butt joint with the collection tower lifting flange 6, completing the self-centering positioning, the supporting legs 32 of the supporting structure 3 are in contact with the upper surface of the collection tower flange and provide initial support.

[0044] The lifting structure 1 continues to move downward, driving the clamp top bracket 7 and the supporting plate 8 to move close to each other, the locking rod 51 of the locking structure 5 rotates, and finally the locking rod 51 is pressed to the lowest limiting position, so that the locking block is completely separated from the locking groove 53, completing the unlocking state. At the same time, the three-jaw clamps 41 are in the open state at this time, and the guide wheels 42 are located at the outermost end of the guide grooves 43.

[0045] Subsequently, the lifting structure 1 reverses the lifting cable, driving the clamp top bracket 7 and the supporting plate 8 to move away from each other, the connecting members drive the three-jaw clamps 41 to move upward, under the action of the clamp gravity, the guide wheels 42 slide centripetally along the guide grooves 43, the three-jaw clamps 41 are gradually tightened, and finally the three-jaw clamps 41 clamp the edge of the collection tower lifting flange 6, completing the automatic adaptive clamping, without manual adjustment of the clamping force.

[0046] Continuing to lift the lifting cable, the entire collection tower can be safely lifted from the original position and transferred to the target position.

[0047] When the collection tower reaches the specified landing area, the lifting structure 1 lowers the cable, the clamps open under the released pressure, the guide wheels 42 slide outward to the outermost end of the guide grooves 43, and at the same time the locking rod 51 rotates to the lowest limit under the structure linkage, the locking block is locked into the locking groove 53 again, realizing the locking state of the three-jaw clamps 41, at this time the clamp can be safely lifted, and the collection tower is smoothly separated.

[0048] Technical effects of the embodiment 1:

[0049] The clamp device of the embodiment has the advantages of automatic guiding, stepless clamping, mechanical limiting locking, and full-range remote control operation. When the lifting structure 1 is lowered to the limit position, the lock block is completely separated from the locking groove 53, and the three-jaw clamp 41 is opened to the maximum diameter. During the lifting process, the clamp is automatically tightened to accurately adapt to the size of the collection tower flange, realize self-adaptive clamping, avoid clamping loosening or damage caused by manual misoperation, significantly improve the safety and efficiency of the lifting operation, and are suitable for high-frequency and intelligent collection tower lifting scenes.

[0050] Embodiment 2, the second embodiment of the application, is different from the previous embodiment in that, on the basis of the embodiment 1, the structure configuration and operation stability of the special rowing clamp device for high-purity titanium collection towers are further optimized. The guiding structure 2, the supporting structure 3, and the clamping structure 4 are improved as follows in the embodiment:

[0051] The guiding structure 2 further includes a guiding column 23 vertically penetrating the bottom flange seat 31 and a guiding hole 24 arranged on each set of three-jaw clamps 41. The guiding column 23 and the guiding hole 24 cooperate to form a sliding fit relationship, which is used to constrain the vertical displacement path between the clamp top bracket 7 and the support plate 8, and prevent the three-jaw clamps 41 from deviating from the position of the upper lifting structure 1 when clamping and loosening the collection tower.

[0052] The supporting structure 3 includes three supporting legs 32, which are symmetrically distributed at an equal interval of 120° along the circumference with the center of the bottom flange seat 31 as the center. The end of each supporting leg 32 forms an equidiameter supporting point, and the circumcircle formed by the connection of the three points has a diameter consistent with the outer diameter of the lifting flange of the collection tower, so as to ensure that the supporting surface closely fits the lifting flange 6 of the collection tower during the placement of the clamp, thereby realizing accurate alignment and stable support.

[0053] The installation positions of the three-jaw clamps 41 and the three supporting legs 32 are staggered in the circumferential direction, and the center line of the clamp is staggered by 60° relative to the adjacent supporting leg 32. Through this staggered distribution design, the clamping action area and the supporting action area are not overlapped in the circumferential direction, forming a mechanical structure with separated clamping and supporting, and enhancing the overall stability and force uniformity.

[0054] Working principle of the embodiment 2:

[0055] During the automatic lifting process, the lifting structure 1 drives the clamp device to descend. After the ends of the supporting legs 32 on the bottom flange seat 31 contact the lifting flange 6 of the collection tower, the clamp preliminarily completes positioning. Due to the equilateral triangle arrangement of the supporting legs 32 and the size matching of the lifting flange, it can be ensured that the clamp obtains three-point stable support at the moment of placement, avoiding shaking or deviation.

[0056] Meanwhile, as the guide hole 24 on the three-jaw clamp 41 is in sliding fit with the guide column 23, the vertical displacement path between the clamp top bracket 7 and the support plate 8 is limited during the driving of the clamp opening and closing of the lifting structure 1, preventing the three-jaw clamp 41 from deviating from the position of the upper lifting structure 1 when clamping and releasing the collection tower.

[0057] When the lifting cable rises, the connecting piece gradually tightens the three-jaw clamp 41, the guide wheel 42 slides along the inner side of the guide groove 43, and finally accurately clamps the edge of the lifting flange 6 of the collection tower. Since the clamp and the support leg 32 are staggered, the clamp action is not interfered by the support structure 3, the overall operation is smooth, and the clamping force is uniformly distributed in the direction, avoiding single-point stress concentration.

[0058] Technical effects of embodiment 2:

[0059] Stable and controllable movement path: through the cooperation of the guide column 23 and the guide hole 24, the vertical displacement path between the clamp top bracket 7 and the support plate 8 is limited, preventing the three-jaw clamp 41 from deviating from the position of the upper lifting structure 1 when clamping and releasing the collection tower, effectively avoiding the deflection, jamming or clamping failure of the clamp due to uneven force, and improving the reliability of the clamp action.

[0060] Precise and reliable support positioning: the three support legs 32 are equilateral distributed, and the outer circle of the end is consistent with the outer diameter of the flange of the collection tower, which can realize fast and stable three-point positioning, prevent the clamp from slipping or tilting during placement, and enhance the operation safety.

[0061] Reasonable clamping stress distribution: the three-jaw clamp 41 and the support leg 32 are staggered, ensuring that the clamping point and the support point act separately in the circumferential direction, avoiding mechanical interference, improving the rigidity of the device and the uniformity of clamping.

[0062] The clamping and supporting functions do not interfere with each other: this structure fully realizes the functional partitioning of the clamping mechanism and the supporting mechanism, making the clamp more stable during the whole process of placement, clamping and lifting, and suitable for frequent lifting and automatic production environment.

[0063] Embodiment 3, which is the third embodiment of the present application, is different from the previous embodiment. On the basis of embodiment 1 and embodiment 2, in order to further improve the locking reliability and operation convenience of the special gantry clamp device for high-purity titanium collection tower during clamping control, the locking structure 5 is optimized in this embodiment.

[0064] The locking rod 51 in the locking structure 5 is composed of three parts, namely the pressing rod, the sleeve and the top rod. The bottom end of the top rod is connected with a lock block, which is a strip structure and can rotate along the axis under the drive of the top rod.

[0065] Locking slot 53 is provided on the bottom flange seat 31, and the top is provided with a rectangular lock hole for allowing the lock block to pass through in a certain posture. The lock block can smoothly enter the locking slot 53 in a state parallel to the long side of the rectangular lock hole, and after entering the bottom of the locking slot 53, it is rotated by 90°, and the lock block is orthogonal to the side wall of the locking slot 53, thereby achieving limiting locking.

[0066] Working principle of embodiment 3:

[0067] When the lifting structure 1 is lowered to drive the clamp device to descend, the three-jaw clamp 41 is in a naturally open state, the guide wheel 42 slides to the outermost end of the guide groove 43, and the clamp falls above the collection tower lifting flange 6. At this time, the operator or system control signal triggers the pressing rod of the locking rod 51, and the pressing rod drives the jack rod to rotate through the sleeve transmission, so that the lock block connected to the bottom of the jack rod is rotated by 90°.

[0068] When the lock block is in a state parallel to the long side of the rectangular lock hole, the lock block enters the bottom of the locking slot 53 through the rectangular lock hole, and then continues to apply pressure. The jack rod drives the lock block to rotate by 90° again, and at this time the lock block is orthogonal to the side wall of the locking slot 53, thereby completing reliable locking.

[0069] When the clamp is ready to be lifted, the lifting structure 1 is lifted in reverse, the steel cable pulls the three-jaw clamp 41 inward to tighten, and the lock block automatically disengages from the locking slot 53 during this process, achieving an unlocked state and entering the clamping and lifting process.

[0070] Technical effects of embodiment 3:

[0071] Simple structure and intuitive operation: through the integrated structure design of "pressing rod-sleeve-jack rod", the rotation control of the lock block is realized, and 90° rotation control is achieved by pressing once. The operation steps are clear, and the fault risk caused by complex mechanisms is avoided.

[0072] Reliable locking and anti-loose: the cooperation between the lock block and the rectangular lock hole is used, and only when it is rotated to a certain angle (parallel to the rectangular lock hole) can it be inserted or pulled out, effectively avoiding accidental unlocking caused by accidental touch; the orthogonal clamping structure of the lock block and the side wall of the bottom of the locking slot 53 ensures that it does not loosen under external force, and guarantees the safety of the open state of the clamp.

[0073] Clear state indication, easy for automatic identification: the rotation angle of the lock block has clear open / locking states, which is easy to cooperate with position sensors or mechanical limit switches for state identification, providing technical support for intelligent control and fault detection of the clamp system.

[0074] Stable control of open position: After the locking block is inserted into the locking groove 53 and the rotation locking is completed, the three-jaw clamp 41 is mechanically limited at the maximum open position, ensuring that the clamp will not be mistakenly tightened before it is placed, aligned, and the tower is collected into the operation area, improving the alignment accuracy and operation fault tolerance.

[0075] Embodiment 4, which is the fourth embodiment of the present application, is different from the previous embodiment. On the basis of Embodiments 1 to 3, in order to further improve the performance of the clamp device in terms of alignment accuracy, structural stability, and clamping response transmission efficiency, the embodiment optimizes the structure and material of some key components in the guide structure 2 and the clamping structure 4.

[0076] Specifically, the guide cone 21 and the guide sleeve 22 in the guide structure 2 are made of high-rigidity alloy material, which has good compression resistance, deformation resistance, and high wear resistance. The two are in a precise telescopic fitting structure, with a gap of no more than 0.5 mm, ensuring that the guide cone 21 has good axial centering and rigid support during telescopic sliding in the guide sleeve 22.

[0077] In the clamping structure 4 part, the original connecting piece and the three-jaw clamp 41 are connected by a hinge shaft, which can rotate freely. The lifting movement of the lifting structure 1 can be reliably converted into the radial sliding action of the three-jaw clamp 41 in the guide groove 43 under the drive of the connecting piece, i.e., opening and closing along the radial direction.

[0078] Working principle of Embodiment 4:

[0079] When the line crane control system moves the clamp device above the target collection tower and starts the descent command, the lifting structure 1 drives the steel cable to release, and the clamp as a whole moves downward. During the lowering process, the guide cone 21 in the guide structure 2 first enters the inside of the guide sleeve 22. Since both are made of high-rigidity alloy material and have a very small fitting gap (≤0.5 mm), the guide cone 21 stably extends into the guide sleeve 22, effectively buffering and achieving self-centering positioning, avoiding collision between the clamp and the collection tower flange.

[0080] At the same time, the clamp bottom flange seat 31 falls above the collection tower lifting flange 6, and the three legs 32 provide three-point support, and the clamp completes the preliminary alignment.

[0081] Subsequently, the lifting structure 1 reverses the lifting of the steel cable, and the connecting piece drives the three-jaw clamp 41 to move upward. Since the connecting piece and the three-jaw clamp 41 are connected by a hinge shaft, the linear movement of the lifting is smoothly converted into the radial sliding of the three-jaw clamp 41 along the guide groove 43. At this time, the guide wheel 42 moves inward along the guide groove 43, and the clamp gradually clamps the edge of the collection tower lifting flange 6, achieving stable clamping.

[0082] Technical effects of Embodiment 4:

[0083] High precision and high rigidity: the guide cone 21 and the guide sleeve 22 are made of high-rigidity alloy material and have a high-precision fitting gap of ≤0.5 mm, which can provide reliable axial guidance during hoisting and docking, and ensure accurate insertion of the clamp device during high-speed descent, without deviation, jamming and other problems caused by material deformation or excessive gap.

[0084] Strong anti-wear ability and long service life: the high-rigidity alloy material has excellent wear resistance and heat resistance, and is suitable for high-frequency and high-temperature operating environments, effectively prolonging the service life of the clamp.

[0085] High transmission efficiency and smooth movement: the articulated shaft connection design makes the connecting piece more flexible, improves the response efficiency between the lifting action of the lifting structure 1 and the radial clamping of the three-jaw clamp 41, ensures synchronous and stable opening and closing of the clamp, and improves the overall operation coordination and operating efficiency of the device.

[0086] High clamping stability: radial sliding is stably driven by the articulated mechanism, combined with the limiting constraint of the guide groove 43 and the guide wheel 42, which can ensure uniform stress and consistent movement of the clamp during clamping, effectively avoiding accidental loosening caused by jamming, deviation or uneven clamping during clamping.

[0087] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions falling within the scope of the present application are within the protection scope of the present application. It should be noted that for ordinary technical personnel in the technical field, some improvements and refinements without departing from the principles of the present application are also considered within the protection scope of the present application.

Claims

1. A special gantry crane clamp device for high-purity titanium collection towers, characterized in that, include: The lifting structure (1) includes two sets of movable pulleys (11) provided on the top bracket (7) of the clamp, a lifting steel cable connecting the movable pulleys (11) and a gantry crane mechanism for driving the lifting steel cable; The guide structure (2) is provided on the support plate (8) below the top bracket (7) of the fixture. The guide structure (2) includes a guide cone (21) and a guide sleeve (22) arranged coaxially. The guide cone (21) is telescopically nested in the guide sleeve (22) with a telescopic stroke greater than 1m. The support structure (3) includes a bottom flange seat (31) and at least three legs (32) evenly distributed around the bottom flange seat (31). The bottom flange seat (31) is fixedly installed at the lower end of the support plate (8). The clamping structure (4) includes three sets of three-jaw clamps (41) distributed circumferentially, guide wheels (42) provided on the three-jaw clamps (41), guide grooves (43) fixedly connected to the bottom flange seat (31), and a connector connecting the three-jaw clamps (41) and the lifting structure (1). The guide wheels (42) are limited to sliding horizontally within the guide grooves (43). The locking structure (5) includes a locking groove (53) that is fixedly connected to the bottom flange seat (31) and a rotatable locking rod (51), the bottom end of which is provided with a locking block; The lifting structure (1) drives the three-jaw clamp (41) to open and close radially along the guide groove (43) through the connector, so that the three-jaw clamp (41) clamps or releases the collection tower lifting flange (6); The rotation of the locking rod (51) is linked to the lifting and lowering of the lifting structure (1), so that the locking block can selectively engage or disengage with the locking groove (53).

2. The special gantry crane clamp device for high-purity titanium collection tower according to claim 1, characterized in that: The guide structure (2) also includes a guide post (23) that penetrates vertically through the bottom flange seat (31) and a guide hole (24) that cooperates with it. The guide hole (24) is provided on the top bracket (7) of the fixture and is used to constrain the vertical displacement path between the top bracket (7) of the fixture and the support plate (8).

3. The special gantry crane clamp device for high-purity titanium collection tower according to claim 1, characterized in that: The support structure (3) has three legs (32), which are distributed at 120° angles around the center of the bottom flange seat (31), and the diameter of the outer circle of the end of the leg (32) is equal to the outer diameter of the collection tower hoisting flange (6).

4. The special gantry crane clamp device for high-purity titanium collection tower according to claim 1, characterized in that: The three-jaw clamp (41) is positioned at a 60° angle away from the support leg (32), so that the clamping area of ​​the three-jaw clamp (41) and the supporting area of ​​the support leg (32) are alternately distributed in the circumferential direction.

5. The special gantry crane clamp device for high-purity titanium collection tower according to claim 1, characterized in that: The locking rod (51) includes a pressure rod, a sleeve and a top rod. The locking block is provided at the bottom end of the top rod. Pressing the locking rod (51) once drives the locking block to rotate 90°. A rectangular lock hole is opened at the top of the locking groove (53). When the locking block is rotated to be parallel to the rectangular lock hole, it can pass through the rectangular lock hole.

6. The special gantry crane clamp device for high-purity titanium collection tower according to claim 5, characterized in that: When the lock block passes through the rectangular lock hole and reaches the bottom of the locking groove (53), it is rotated 90° so that the lock block and the side wall of the locking groove (53) form an orthogonal engagement. At this time, the three-jaw clamp (41) is in the maximum open position.

7. The special gantry crane clamp device for high-purity titanium collection tower according to claim 1, characterized in that: When the lifting structure (1) is lowered to its limit position, the locking block is completely disengaged from the locking groove (53), and the guide wheel (42) of the three-jaw clamp (41) is located at the outermost end of the guide groove (43); when the lifting structure (1) rises, the guide wheel (42) slides along the guide groove (43) to drive the three-jaw clamp (41) to grip the edge of the collection tower lifting flange (6).

8. The special gantry crane clamp device for high-purity titanium collection tower according to claim 1, characterized in that: The guide cone (21) and the guide sleeve (22) are made of high-rigidity alloy material, and the expansion and contraction gap is ≤0.5mm.

9. The special gantry crane clamp device for high-purity titanium collection tower according to claim 1, characterized in that: The connector is connected to the three-jaw clamp (41) via a hinge shaft, and the lifting movement of the lifting structure (1) is converted into the radial sliding of the three-jaw clamp (41) in the guide groove (43).

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