A clamping device and a lifting tool

Abstract

This invention relates to the field of equipment hoisting and relocation construction technology, and particularly to a clamping device and a lifting tool. The clamping device includes a mounting base, a linkage mechanism, a transition mechanism, and a pressure block mechanism that are hinged sequentially. The linkage mechanism is hinged to a telescopic mechanism. The mounting base can be adapted to connect to a slot mechanism, which includes a slot for holding the mounting base, and the mounting base can slide along the slot. During the movement and lifting process, the pressure block mechanism can maintain its structural stability through gravity, keeping its bottom plane relatively horizontal and avoiding a large angle between it and the hoisted equipment. This allows for better contact with the hoisted equipment. Simultaneously, the mounting base can move through the slot mechanism, changing the relative position of the clamping device and the hoisted equipment, enabling the pressure block mechanism to press onto a designated area. This adapts the clamping device to the shape and structure of the hoisted equipment, and the position adjustment is convenient, improving the clamping effect and efficiency.

Description

Technical Field

[0001] This invention relates to the field of equipment hoisting and relocation construction technology, and particularly to a clamping device and a hoisting tool. Background Technology

[0002] In the process of moving large equipment parts, slings are often used for lifting. Due to the flexibility of slings, it is necessary to limit the relative position between the equipment and the lifting device. For example, when lifting wind turbine blades, a clamping device needs to be set at the bottom of the lifting device to press against the blade surface. The friction force is used to prevent the blade from moving relative to the lifting device. The blade is usually reinforced in a specific area located on the longitudinal centerline to withstand the pressure of the clamping device.

[0003] Chinese utility model patent CN215854597U discloses a special lifting tool for wind turbine blades, including a main platform, a lifting strap, and a clamping mechanism. The clamping mechanism is located at the bottom of the main platform and includes a clamping arm, a clamping cylinder, an adjusting arm, an adjusting cylinder, and a pressure plate. The clamping arm and the clamping cylinder are both hinged to crossbeams at both ends of the main platform. One end of the clamping cylinder is hinged to the clamping arm, and the other end passes through a strip-shaped through hole in the crossbeam. The end of the clamping arm furthest from the crossbeam is hinged to the middle of the adjusting arm. The bottom ends of the adjusting arm are hinged to the pressure plate via transition blocks. One end of the adjusting cylinder is hinged to the clamping arm, and the other end is hinged to the adjusting arm. The clamping mechanism is activated by the action of the clamping cylinder. The clamping arm rotates, causing the pressure plate to rise and fall. However, the clamping mechanism is fixed at the bottom of the main platform and cannot be adjusted according to the structural characteristics of the hoisted equipment. The clamping cylinder is set to extend and retract laterally along the main platform, and the pressure plate will move laterally relative to the blade when it rises and falls. Only at a certain height can it press on the reinforcing part on the blade. In actual operation, the relative height between the blade and the lifting device needs to be adjusted, which brings inconvenience to use. Moreover, when the pressure plate is in contact with the blade, the deflection direction of the pressure plate needs to be adjusted by the arc of the blade surface. When the pressure plate is about to contact the blade, a large angle is likely to appear between the pressure plate and the blade, making it difficult to fit tightly.

[0004] Therefore, there is an urgent need for a technical solution to address the problems of existing clamping devices being fixed in place, making it difficult to press the designated area, and the pressure plate easily forming a large angle with the suspended equipment, making it difficult to fit tightly. Summary of the Invention

[0005] The purpose of this invention is to address the technical problems of existing clamping devices being fixedly set up, making it difficult to press down on the designated parts, and the pressure plate easily forming a large angle with the suspended equipment, making it difficult to fit tightly. This invention provides a clamping device and a lifting tool.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A clamping device includes a mounting base, a linkage mechanism, a transfer mechanism, and a pressing block mechanism that are hinged together in sequence. The linkage mechanism is hinged to a telescopic mechanism, which drives the linkage mechanism to swing. The mounting base can be connected to a slot mechanism, which has a slot for holding the mounting base, and the mounting base can slide along the slot.

[0008] The present invention discloses a clamping device that drives a linkage mechanism to swing via a telescopic mechanism, thereby causing a clamping block mechanism to move and rise, changing the relative height between the clamping block mechanism and the suspended equipment. During the movement and lifting process, the clamping block mechanism can maintain its structural stability through gravity, keeping its bottom plane relatively horizontal, avoiding a large angle between it and the suspended equipment, and thus better fitting the suspended equipment. At the same time, the mounting base can move through a slot mechanism, changing the overall relative position between the clamping device and the suspended equipment, making it easier for the clamping block mechanism to press onto the designated part. This makes the clamping device adaptable to the shape and structure of the suspended equipment, and the position adjustment is convenient, improving the clamping effect and clamping efficiency of the clamping device.

[0009] In a preferred embodiment of the present invention, the extending direction of the slot is perpendicular to the swing surface of the linkage mechanism. This allows the position of the mounting base to change along the extending direction of the slot, thereby adjusting the position of the pressure block mechanism without altering the swing direction of the linkage mechanism or its relative connection with the mounting base.

[0010] In a preferred embodiment of the present invention, the telescopic mechanism is hinged to the mounting base, and the mounting base is provided with a perforated lug for hinged connection between the linkage mechanism and the telescopic mechanism. This allows the telescopic mechanism to move together with the mounting base when the position of the clamping device needs to be adjusted, forming an integrated and movable clamping device.

[0011] In a preferred embodiment of the present invention, the mounting base includes a first mounting plate and a second mounting plate arranged at an obtuse angle. The linkage mechanism is hinged to the first mounting plate, and the telescopic mechanism is hinged to the second mounting plate. This allows for the integrated installation of the linkage mechanism and the telescopic mechanism on a single mounting base, facilitating the adjustment of the position of the pressure block mechanism. Furthermore, the relative angle between the first and second mounting plates enables the telescopic mechanism and the linkage mechanism to fold and converge at a certain angle, reducing the overall size of the pressing device and facilitating its relocation.

[0012] In a preferred embodiment of the present invention, the adapter mechanism includes an adapter seat and a transition seat. The adapter seat is hinged to the linkage mechanism, and the adapter seat can maintain a horizontal bottom surface during the rotation of the linkage mechanism. The bottom of the transition seat is hinged to the pressure block mechanism. This allows the adapter seat to automatically achieve mechanical leveling during the rotation of the linkage mechanism, ensuring that its bottom surface remains horizontal at all times. This provides a relatively horizontal hinge surface for the pressure block mechanism, enabling it to maintain its structural balance under gravity. Furthermore, this design avoids a large angle between the pressure block mechanism and the suspended equipment during use, allowing for better contact with the suspended equipment.

[0013] In a preferred embodiment of the present invention, the adapter and / or the transition seat are arranged with mounting holes, and the adapter and the transition seat are detachably connected by connectors adapted to the mounting holes. This allows the pressure block mechanism to be adjusted relative to the adapter, further expanding the clamping range of the clamping device and improving the adaptability of the clamping device to the suspended equipment.

[0014] In a preferred embodiment of the present invention, the mounting base and / or the slot mechanism are arranged with connecting holes in an array. The mounting base and the slot mechanism are detachably connected via connectors adapted to the connecting holes, and the connecting holes are arranged at least along the extension direction of the slot. After the mounting base is adjusted in position, it can achieve a stable connection with the slot mechanism via the connectors, improving the structural stability of the clamping device during use. This allows the connecting holes to mate with the slots, enabling the clamping device to move in multiple directions and then be fixed. Furthermore, the force of the pressure block pressing the suspended equipment can be transmitted in the opposite direction to the mounting base and distributed to the slot mechanism via the connectors.

[0015] In a preferred embodiment of the present invention, the spacing between adjacent mounting holes is smaller than the spacing between adjacent connecting holes in the same arrangement direction. This allows for fine-tuning of the position of the pressing mechanism over a relatively large range.

[0016] In a preferred embodiment of the present invention, the pressing mechanism includes a balance seat and a pressure plate. The balance seat is hinged to the bottom of the transition seat, and one or more pressure plates are hinged to the bottom of the balance seat. The hinge axis of the pressure plate and the balance seat is perpendicular to the extension direction of the slot. By cooperating with multiple pressure plates, the pressing mechanism can be adapted to the irregular shape of the suspended equipment, increasing the contact area and improving the pressing effect, depending on the actual situation.

[0017] In a preferred embodiment of the present invention, the mounting base is detachably connected to an adjustment fixture, which drives the mounting base to move along the slot. This allows for the overall movement of the heavy clamping device through the adjustment fixture, reducing the difficulty of adjusting the position of the pressure block mechanism.

[0018] A lifting device includes a lifting platform, a clamping device is provided at the bottom of the lifting platform, a slot mechanism is fixedly disposed on the lifting platform or detachably connected to the lifting platform, and a linkage mechanism swings longitudinally along the lifting platform.

[0019] The present invention provides a lifting device in which a lifting platform is connected to a slot mechanism to realize the setting of the slot on the lifting platform, or the lifting platform forms a slot as the slot mechanism to realize the integrated installation of the clamping device on the lifting platform. When lifting equipment, the lifting device can adjust the relative position of the clamping device and the lifting platform according to the actual structure and shape of the equipment being lifted, so that the clamping device can stably clamp to the designated position of the equipment being lifted, and the clamping effect is good and the clamping efficiency is high.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the clamping device of the present invention are:

[0021] 1. The briquetting mechanism can keep its bottom plane relatively horizontal during the movement and lifting process, which can avoid a large angle between it and the equipment being lifted, and can better fit the equipment being lifted;

[0022] 2. The mounting base can move through the slot mechanism, changing the relative position of the clamping device and the suspended equipment, making it easier for the clamping block mechanism to press onto the designated part;

[0023] 3. The clamping device is adapted to the shape and structure of the equipment being lifted, and its position is easy to adjust, thereby improving the clamping effect and efficiency of the clamping device.

[0024] The beneficial effects of the lifting device of the present invention are:

[0025] 1. The hanger platform connects to the slot mechanism to realize the setting of the slot on the hanger platform, or the hanger platform acts as the slot mechanism to form the slot, realizing the integrated installation of the clamping device on the hanger platform;

[0026] 2. When lifting equipment, this lifting device can adjust the relative position of the clamping device and the lifting platform according to the actual structure and shape of the equipment being lifted, so that the clamping device can stably clamp the equipment to the designated position, and the clamping effect is good and the clamping efficiency is high. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a clamping device according to Embodiment 1;

[0028] Figure 2 This is a schematic diagram of the retractable and folded structure of a clamping device according to Embodiment 1;

[0029] Figure 3 This is a schematic diagram of the mounting base described in Embodiment 1;

[0030] Figure 4 This is a schematic diagram of the adapter described in Embodiment 4;

[0031] Figure 5 This is a schematic diagram of the transition seat described in Embodiment 4;

[0032] Figure 6 This is a schematic diagram of the use state of a clamping device according to the present invention. Figure 1 ;

[0033] Figure 7 This is a side view of the clamping device according to the present invention;

[0034] Figure 8 This is a schematic diagram of the use state of a clamping device according to the present invention. Figure 2 ;

[0035] Figure 9 This is a schematic diagram of the usage state of the adjustment tooling described in this invention;

[0036] Figure 10 This is a schematic diagram of the use state of a clamping device according to the present invention. Figure 3 ;

[0037] Figure 11 This is a diagram showing the connection state of the linkage mechanism and the telescopic mechanism described in this invention;

[0038] Figure 12 This is a schematic diagram of the usage status of a lifting device in Embodiment 6.

[0039] icon:

[0040] 1-Mounting base, 11-First mounting plate, 12-Connecting plate, 13-Second mounting plate, 14-Adjusting hole, 15-Connecting rod hole, 16-Shaft seat fixing hole, 2-Connecting rod mechanism, 21-Cross bar, 3-Transfer mechanism, 31-Transfer seat, 32-Transition seat, 33-Mounting hole, 4-Pressure block mechanism, 41-Balance seat, 42-Pressure plate, 5-Telescopic mechanism, 51-Shaft seat, 6-Slot mechanism, 61-Slot, 62-Connecting hole, 7-Adjusting fixture, 71-Screw seat, 72-Adjusting screw, 8-Hanger platform, 9-Blade. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings.

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0043] Example 1

[0044] like Figures 1-12 As shown, a clamping device includes a mounting base 1, a linkage mechanism 2, a transfer mechanism 3, and a pressing block mechanism 4 that are hinged together in sequence. The linkage mechanism 2 is hinged to a telescopic mechanism 5, which is used to drive the linkage mechanism 2 to swing. The mounting base 1 is connected to a slot mechanism 6, which is provided with a slot 61 for holding the mounting base. The mounting base 1 can slide along the slot 61.

[0045] It is understandable that the extension direction of the slot 61 can be set to extend in any direction according to the actual situation, so as to form a clamping device with different usage effects.

[0046] As a preferred embodiment, the extension direction of the slot 61 is perpendicular to the swing surface of the linkage mechanism 2. The path traversed by the swing of the linkage mechanism 2 forms the swing surface. By setting the slot 61 perpendicular to the swing surface, the height of the pressing mechanism 4 within the swing surface is controlled by the swing of the linkage mechanism 2. The position of the pressing mechanism 4 in the lateral direction perpendicular to the swing surface is controlled by the movement of the mounting base 1 along the slot 61. This allows for a wide range of adjustments to the position of the pressing mechanism 4 without changing the relative connection between the linkage mechanism 2 and the mounting base 1.

[0047] It is understandable that multiple hinge positions of the telescopic mechanism 5 can be set outside the range of the mounting base 1 according to the actual situation, so that the telescopic mechanism 5 and the mounting base 1 are set separately. After the mounting base 1 is moved, the telescopic mechanism 5 can be hinged to a suitable position.

[0048] As a preferred embodiment, the telescopic mechanism 5 is hinged to the mounting base 1, and the mounting base 1 is provided with a perforated lug for hinged connection between the linkage mechanism 2 and the telescopic mechanism 5. This allows the telescopic mechanism 5 to move together with the mounting base 1 when the position of the clamping device needs to be adjusted, forming an integrated and movable clamping device, thus facilitating its use.

[0049] As a preferred embodiment, the mounting base 1 includes a first mounting plate 11, a connecting plate 12, and a second mounting plate 13 arranged sequentially. The first mounting plate 11, the connecting plate 12, and the second mounting plate 13 are not coplanar and are set at an obtuse angle. The linkage mechanism 2 is hinged to the first mounting plate 11, and the telescopic mechanism 5 is hinged to the second mounting plate 13. This allows for the integrated installation of the linkage mechanism 2 and the telescopic mechanism 5 on a single mounting base 1, facilitating the adjustment of the position of the pressing block mechanism 4. Furthermore, the relative angle between the first mounting plate 11 and the second mounting plate 13 enables the telescopic mechanism 5 and the linkage mechanism 2 to fold and converge at a certain angle, reducing the overall size of the pressing device and facilitating its relocation.

[0050] It is understood that the structure of the mounting base 1 described above is the preferred solution of this embodiment. The connecting plate 12 can be set according to the installation space of the position to be used of the pressing device. When the direct connection of the first mounting plate 11 and the second mounting plate 13 can also meet the installation and use requirements of the linkage mechanism 2 and the telescopic mechanism 5, the connecting plate 12 can be omitted.

[0051] In this embodiment, as Figures 2-3 As shown, the connecting plate 12 and the second mounting plate 13 of the mounting base 1 are set at an obtuse angle in the clockwise direction, making the connecting plate 12 tilted. The first mounting plate 11 and the connecting plate 12 are set at an obtuse angle in the counterclockwise direction. Two perforated lugs for hinged linkage mechanism 2 are provided at the bottom of the first mounting plate 11, forming four linkage holes 15. Each linkage hole 15 is hinged to a linkage. The linkage mechanism 2 is composed of four parallel and equal-length linkages. The ends of the four linkages away from the mounting base 1 are respectively hinged to the adapter mechanism 3. The relative distance between each hole and the mounting base 1 is adjusted according to the actual situation. To achieve the corresponding rotation function, the four connecting rods constituting the linkage mechanism 2 form a spatial parallelogram frame structure; the second mounting plate 13 of the mounting base 1 is horizontally set, and the bottom of the second mounting plate 13 is provided with two perforated ear plates for fixing the shaft seat 51 of the telescopic mechanism 5. The structure is reinforced according to the actual situation, and multiple shaft seat fixing holes 16 for fixing the shaft seat 51 of the telescopic mechanism 5 are formed, so that the two shaft seats 51 of the telescopic mechanism 5 are hinged to the bottom of the mounting base 1. The two shaft seats 51 are set opposite to each other and are hinged to the middle of the telescopic mechanism 5 from both sides.

[0052] In this embodiment, a clamping device has a telescopic mechanism 5 hinged to a linkage mechanism 2 at one end in the telescopic direction. The linkage mechanism 5 drives the linkage mechanism 2 to swing around its hinged position with the mounting base 1, thereby moving and lifting the transfer mechanism 3 and the pressure block mechanism 4. This changes the relative height between the pressure block mechanism 4 and the suspended equipment, achieving the clamping function. The linkage mechanism 2, composed of four equal and parallel rods, forms a spatial parallelogram geometry, enabling the transfer mechanism 3 to automatically level itself and providing a relatively horizontal hinged position for the pressure block mechanism 4. Furthermore, since the pressure block mechanism 4 and the linkage mechanism 2 are connected via a transfer mechanism... During the transition of mechanism 3, while the linkage mechanism 2 is swinging, the pressure block mechanism 4 is simultaneously affected by gravity, which keeps the bottom plane relatively horizontal and avoids a large angle between it and the suspended equipment. This allows the pressure block mechanism 4 to better fit the suspended equipment. At the same time, the mounting base 1 can move along the slot 61, changing the relative position between the pressing device and the suspended equipment. This makes it easier for the pressure block mechanism 4 to press onto the designated part, adapting the pressing device to the shape and structure of the suspended equipment. The position is also easy to adjust, improving the pressing effect and efficiency of the pressing device.

[0053] like Figure 12As shown, this embodiment uses a clamping device applied to the clamping process of a single blade 9 of a wind turbine as an example. It can be understood that the clamping device can also be used to clamp large pipe fittings, aircraft blades and other suspended equipment. The slot 61 is horizontally set above the top of the suspended equipment and clamps the top edge and bottom edge of the mounting base 1.

[0054] In this embodiment, the telescopic end of the telescopic mechanism 5 is preferably hinged to the connecting rod or the crossbar 21 that is laterally connected to the connecting rod. A load sensor is set at the hinge position to test the force exerted by the telescopic mechanism 5 on the connecting rod mechanism 2. A protective material layer is set at the bottom of the pressure block mechanism 4 to avoid damage to the blade 9. The protective material layer is preferably made of polymer plastic, but other materials and structural components can also be used depending on the actual situation.

[0055] In use, the telescopic mechanism 5 is driven to extend and retract by electricity or hydraulics, applying a pushing and pulling force to the linkage mechanism 2, causing the four linkages to rotate around the mounting base 1 simultaneously, thereby driving the transfer mechanism 3 and the pressure block mechanism 4 to translate but not rotate. This ensures that the lower surface of the pressure block mechanism 4 always maintains approximately the same angle with the equipment being lifted. When the clamping device needs to be parked on the ground or transported, the telescopic mechanism 5 is retracted, and the linkage mechanism 2 and the telescopic mechanism 5 are folded back, reducing the overall transport size of the clamping device.

[0056] Example 2

[0057] In this embodiment of the clamping device, based on embodiment 1, the slot mechanism 6 and / or the mounting base 1 are arranged with connecting holes 62 in an array, and the mounting base 1 and the slot mechanism 6 are detachably connected by a connector adapted to the connecting holes 62.

[0058] As a preferred option, such as Figure 1 As shown, the part of the slot mechanism 6 other than the slot 61 is a plate-shaped structural component. The plate-shaped structural component is provided with connecting holes 62. The plate-shaped structural component is fitted to the mounting base 1 and connected by a connector to improve the structural stability of the clamping device during use. After the connector is removed, the mounting base 1 is limited by the slot 61 to prevent it from disengaging from the slot mechanism 6. The slot 61 acts as an anti-disengagement mechanism for the mounting base 1, and the mounting base 1 can move along the slot 61 to fix the mounting base 1 in different positions within the slot 61, so that the slot 61 acts as a guide. At the same time, the mounting base 1 and the slot mechanism 6 are connected as a whole through the connector. During use, the force of the pressing block mechanism 4 pressing the suspended equipment can be transmitted in reverse to the mounting base 1 and distributed to the slot mechanism 6.

[0059] It is understood that the connecting components described in this application are all connecting components that play a connecting role in conventional mechanical structures, such as bolts, bolt-nut combinations, and threaded rods.

[0060] It is understood that the connecting holes 62 can be arranged along the extension direction of the slot 61, or arranged in multiple rows and columns according to the actual situation to improve the connection stability between the mounting base 1 and the slot mechanism 6, or, when necessary, the mounting base 1 can be adjusted in a position perpendicular to the extension direction of the slot 61.

[0061] In this embodiment, the connecting hole 62 is correspondingly set within the coverage area of ​​the first mounting plate 11 and the second mounting plate 13, so that the connecting hole 62 cooperates with the slot 61 to realize multi-directional movement of the pressing device, and the overall structural stability of the mounting base 1 can be improved by increasing the number of connecting parts.

[0062] Example 3

[0063] In this embodiment of the clamping device, based on embodiment 2, the mounting base 1 is detachably connected to the adjusting fixture 7, which is used to drive the mounting base 1 to move along the slot 61.

[0064] In this embodiment, a clamping device is used to move the entire clamping device, which is relatively heavy, by adjusting the tooling 7, so as to reduce the difficulty of adjusting the position of the pressing block mechanism 4.

[0065] Specifically, such as Figure 3 , Figure 9 As shown, the adjusting fixture 7 includes a lead screw seat 71 and an adjusting lead screw 72. The mounting base 1 has adjusting holes 14 on the perforated ear plate of the forming connecting rod hole 15. Every two adjusting holes 14 are arranged opposite each other. When it is necessary to adjust the position of the clamping device in the slot 61, the lead screw seat 71 is connected to the connecting hole 62 through a connector and is located on the side of the perforated ear plate of the mounting base 1. The adjusting lead screw 72 has threads along its entire length and a hole at its head for installing a cotter pin or pin. In use, the adjusting lead screw 72 is passed through the threaded hole of the lead screw seat 71 and inserted into the opposite adjusting hole 14. A slotted nut is installed on the adjusting lead screw 72 and a cotter pin is inserted for limiting. Temporarily detach the connector between the mounting base 1 and the slot mechanism 6, and simultaneously rotate the adjusting screw 72 to pull the mounting base 1 along the slot 61 toward the screw seat 71. Once the desired position is reached, re-tighten the connector between the mounting base 1 and the connecting hole 62 to fix the mounting base 1 and the slot mechanism 6, thus fixing the relative position of the mounting base 1 and the slot 61. When it is necessary to pull the mounting base 1 in the other direction, install the screw seat 71 on the other side of the mounting base 1 and adjust it in the same way. In this way, the clamping device can be quickly and safely moved and adjusted along the extension direction of the slot 71 by manpower alone, greatly reducing the difficulty and time of outdoor operations.

[0066] Example 4

[0067] In this embodiment of the pressing device, based on any one of Embodiments 1-3, the adapter mechanism 3 includes an adapter seat 31 and a transition seat 32. The adapter seat 31 is hinged to the linkage mechanism 2 through a linkage hole 15. The adapter seat 31 can keep its bottom surface horizontal during the rotation of the linkage mechanism 2. The bottom of the transition seat 32 is hinged to the pressing block mechanism 4. The adapter seat 31 and / or the transition seat 32 are arranged with mounting holes 33. The adapter seat 31 and the transition seat 32 are detachably connected by a connector adapted to the mounting holes 33.

[0068] One type of clamping device in this embodiment, such as Figure 4 As shown, the top of the adapter 31 is equipped with perforated lugs corresponding to each connecting rod. The perforated lugs are arranged at different heights according to the actual situation. The bottom of the adapter 31 is set as a flat surface, so that the adapter 31 can automatically achieve mechanical leveling during the rotation of the four equal and parallel connecting rods, always maintaining the relative horizontality of the bottom plane. In addition, the pressure block mechanism 4 can maintain its own structural balance through gravity, so that the bottom surface of the pressure block mechanism 4 can keep the bottom surface used to fit against the hoisted equipment relatively horizontal; as Figure 5 As shown, the transition seat 32 includes a flat plate that fits against the bottom plane of the adapter seat 31 and a perforated ear plate perpendicular to the flat plate. The transition seat 32 is bolted to the bottom of the adapter seat 31.

[0069] As a preferred option, such as Figure 4 As shown, the bottom of the adapter 31 is provided with multiple sets of mounting holes 33 for mounting the transition seat 32. The transition seat 32 is fixedly connected to the lower surface of the adapter 31 by bolts. By connecting the transition seat 32 to different mounting holes 33, the relative position of the transition seat 32 with respect to the adapter 31 can be changed, thereby changing the position of the pressure block mechanism 4 set at the bottom of the transition seat 32 relative to the suspended equipment. This allows the pressure block mechanism 4 to be adjusted relative to the adapter 31, further expanding the compressible range of the pressing device and improving the adaptability of the pressing device to the suspended equipment.

[0070] Preferably, in the same arrangement direction, the spacing between adjacent mounting holes 33 is smaller than the spacing between adjacent connecting holes 62. This allows the mounting seat 1 to have a larger adjustment distance along the slot 61, while the transition seat 32 has a smaller adjustment distance relative to the adapter seat 31. By combining these two different adjustment methods, fine adjustment of the lateral position of the pressing mechanism 4 can be achieved over a wider range to meet the needs of different types of hoisted equipment.

[0071] Example 5

[0072] In this embodiment of the pressing device, based on embodiments 1-4, the pressing block mechanism 4 includes a balance seat 41 and a pressure plate 42. The balance seat 41 is hinged to the bottom of the transition seat 32, and one or more pressure plates 42 are hinged to the bottom of the balance seat 41. The hinge axis of the pressure plate 42 and the balance seat 41 is perpendicular to the extension direction of the slot 61.

[0073] In this embodiment, a pressing device is provided. The balance seat 41 rotates relative to the transition seat 32. The pressure plate 42 is hinged to the balance seat 41 via a spherical bearing. The pressure plate 42 can also rotate within a certain range relative to the balance seat 41. After the pressure plate 42 is pressed down onto the surface of the suspended equipment, the pressure plate 42 can adapt well to the shape of the surface of the suspended equipment and obtain a larger contact area.

[0074] As a preferred embodiment, two pressure plates 42 are provided at the bottom of the balance seat 41. The two pressure plates 42 cooperate to adapt the pressure block mechanism 4 to the irregular shape of the hoisted equipment, increase the contact area, and improve the pressing effect. The two pressure plates 42 can be hinged to the balance seat 41 around the hinge axis perpendicular to the extension direction of the slot 61, changing the size of the gap between the two pressure plates 42 and the relative angle between the two pressure plates 42, so that the pressure plates 42 can fit stably with the hoisted equipment with arc surface features, and have a wider range of applications.

[0075] Example 6

[0076] This embodiment is a lifting device using the clamping device of embodiment 5, including a lifting platform 8, the clamping device is set at the longitudinal centerline of the bottom of the lifting platform 8, the slot mechanism 6 is fixedly set on the lifting platform 8 or detachably connected to the lifting platform 8, and the linkage mechanism 2 swings longitudinally along the lifting platform 8.

[0077] This embodiment of the lifting device, taking the lifting device for slinging a single blade 9 of a wind turbine as an example, provides a slotting mechanism 6 for connecting a plate-shaped structural member to the mounting base 1 by partially welding a steel structure on the lifting platform 8. The plate-shaped structural member is provided with connecting holes 62 and slots 61, allowing the clamping device to press down above the longitudinal beam of the blade 9. Using the lifting device of this embodiment, the lifting platform 8 provides the slots 61 as the slotting mechanism 6, allowing the clamping device to be installed at both longitudinal ends below the lifting platform 8 and located inside the lifting platform 8. The slots 61 extend along the lifting platform 8. The horizontal arrangement of the clamping mounting base 1, the top and bottom edges of the clamping mounting base 1, the linkage mechanism 2 and the telescopic mechanism 5 are arranged longitudinally along the longitudinal beam, and the telescopic direction of the telescopic mechanism 5 is parallel to the longitudinal beam. When lifting, the pressure block mechanism 4 presses down to the top of the longitudinal beam of the blade 9 to support the blade 9 and limit the relative displacement between the blade 9 and the lifting device. When the linkage mechanism 2 drives the pressure block mechanism 4 to move, the pressure plate 42 will always remain horizontally arranged relative to the lifting device and the blade 9, and can always press down on the top of the longitudinal beam of the blade 9 without the need for special adjustment of the height distance between the lifting device and the blade 9.

[0078] Furthermore, since the longitudinal beam positions of different blade models 9 are different when lifting, that is, the lateral direction relative to the lifting platform 8 is different, in order to adapt to the lateral position of the longitudinal beam of different blade models 9, the lateral installation position of the mounting seat 1 in the slot 61 can be adjusted, and the lateral relative position of the transition seat 32 and the adapter seat 31 can also be adjusted to meet the lateral position requirements of various blade models 9 for the clamping device. This allows the lifting device to adjust the relative position of the clamping device and the lifting platform 8 according to the actual structure and shape of the equipment being lifted, so that the clamping device can stably clamp to the designated position of the equipment being lifted, and the clamping effect is good and the clamping efficiency is high.

[0079] As a preferred option, the slot mechanism 6 can also be a mechanical mechanism independent of the hanger platform 8, so that the slot mechanism 6 can be integrated with the hanger platform 8 through a detachable connection.

[0080] As a preferred option, when the spreader needs to be parked on the ground or transported, after the telescopic mechanism 5 is retracted and folded, the height of the pressure plate 42 can be higher than the lowest surface of the spreader platform 8, so as to prevent the pressure plate 42 from being crushed by direct contact with the ground or other supporting surfaces, and also to reduce the overall transport size of the spreader.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A clamping device, characterized in that, The system includes a mounting base (1), a linkage mechanism (2), a transfer mechanism (3), and a pressure block mechanism (4) that are hinged together in sequence. The linkage mechanism (2) is hinged to a telescopic mechanism (5), which is used to drive the linkage mechanism (2) to swing. The transfer mechanism (3) includes a transfer seat (31) and a transition seat (32), which are detachably connected by a connector. The transfer seat (31) is hinged to the linkage mechanism (2). The bottom surface can remain horizontal during the rotation of the linkage mechanism (2). The bottom of the transition seat (32) is hinged to the pressure block mechanism (4). The pressure block mechanism (4) includes a balance seat (41) and a pressure plate (42). The balance seat (41) is hinged to the bottom of the transition seat (32). The mounting seat (1) is connected to the slot mechanism (6). The slot mechanism (6) is provided with a slot (61) for holding the mounting seat (1). The mounting seat (1) can slide along the slot (61).

2. The clamping device as described in claim 1, characterized in that, The extension direction of the slot (61) is perpendicular to the swing surface of the linkage mechanism (2).

3. The clamping device as described in claim 1, characterized in that, The telescopic mechanism (5) is hinged to the mounting base (1), and the mounting base (1) is provided with a perforated lug for hinged connection between the linkage mechanism (2) and the telescopic mechanism (5).

4. A clamping device as described in claim 3, characterized in that, The mounting base (1) includes a first mounting plate (11) and a second mounting plate (13) arranged at an obtuse angle. The linkage mechanism (2) is hinged to the first mounting plate (11), and the telescopic mechanism (5) is hinged to the second mounting plate (13).

5. A clamping device as described in claim 1, characterized in that, The adapter (31) and / or the transition seat (32) are arranged with mounting holes (33), and the adapter (31) and the transition seat (32) are detachably connected by connectors adapted to the mounting holes (33).

6. A clamping device as described in claim 5, characterized in that, The mounting base (1) and / or the slot mechanism (6) are arranged with connecting holes (62). The mounting base (1) and the slot mechanism (6) are detachably connected by a connector adapted to the connecting holes (62). The connecting holes (62) are arranged at least along the extension direction of the slot (61).

7. A clamping device as described in claim 6, characterized in that, In the same arrangement direction, the spacing between adjacent mounting holes (33) is smaller than the spacing between adjacent connecting holes (62).

8. A clamping device as described in claim 1, characterized in that, One or more of the pressure plates (42) are hinged to the bottom of the balance seat (41), and the hinge axis of the pressure plates (42) and the balance seat (41) is perpendicular to the extension direction of the slot (61).

9. A clamping device as described in claim 1, characterized in that, The mounting base (1) is detachably connected to the adjustment fixture (7), which is used to drive the mounting base (1) to move along the slot (61).

10. A lifting device, characterized in that, Includes a hanging platform (8), the bottom of which is provided with a clamping device as described in any one of claims 1-9, the slot mechanism (6) is fixedly disposed on the hanging platform (8) or detachably connected to the hanging platform (8), and the linkage mechanism (2) swings longitudinally along the hanging platform (8).

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