阅读说明：本技术 吊运工装 (Hoisting tool ) 是由 郝晓磊 韩志伟 李琳 韩小岗 鹿良杰 于 2021-07-30 设计创作，主要内容包括：本申请提供一种吊运工装。该吊运工装包括工装主体和多个吊爪。所述工装主体包括设于顶端且用于与吊具连接的连接结构。多个吊爪可转动地连接于所述工装主体的底端,围绕所述工装主体的纵向中心线分布,向所述连接结构施加向上的拉力时,所述工装主体中的多个转动副转动,带动所述多个吊爪切换至伸出状态,所述多个吊爪在所述伸出状态下能够与负载连接,撤销施加于所述连接结构向上的拉力时,所述工装主体中的转动副反向转动,带动所述多个吊爪切换至缩回状态,所述多个吊爪在所述缩回状态下能够与负载解除连接,且所述多个吊爪均设置成沿长度方向可伸长和缩短的可变形吊爪。该方案在一定程度上实现了吊装的自动化,节省了人力,提高了吊运效率。(The application provides a handling frock. The lifting tool comprises a tool main body and a plurality of lifting claws. The tool main body comprises a connecting structure which is arranged at the top end and is used for being connected with a lifting appliance. The plurality of lifting claws are rotatably connected to the bottom end of the tool main body and distributed around the longitudinal center line of the tool main body, when upward pulling force is applied to the connecting structure, the plurality of revolute pairs in the tool main body rotate to drive the plurality of lifting claws to be switched to an extending state, the plurality of lifting claws can be connected with a load in the extending state, when the upward pulling force of the connecting structure is cancelled, the revolute pairs in the tool main body reversely rotate to drive the plurality of lifting claws to be switched to a retracting state, the plurality of lifting claws can be disconnected with the load in the retracting state, and the plurality of lifting claws are all set into deformable lifting claws which can extend and shorten along the length direction. The scheme realizes automation of hoisting to a certain extent, saves manpower and improves hoisting efficiency.)

1. The utility model provides a handling frock, its characterized in that includes:

the tool main body is provided with a movable connecting component comprising a plurality of revolute pairs and comprises a connecting structure which is arranged at the top end and is used for being connected with a lifting appliance; and

the tool comprises a tool main body, a plurality of lifting claws, a plurality of rotating pairs and a plurality of connecting structures, wherein the tool main body is connected with the bottom end of the tool main body in a rotating mode, the plurality of lifting claws are distributed around the longitudinal center line of the tool main body, when upward pulling force is applied to the connecting structures, the plurality of rotating pairs in the tool main body rotate to drive the plurality of lifting claws to be switched to an extending state, the plurality of lifting claws can be connected with a load in the extending state, when the upward pulling force of the connecting structures is cancelled, the rotating pairs in the tool main body rotate reversely to drive the plurality of lifting claws to be switched to a retracting state, the plurality of lifting claws can be disconnected with the load in the retracting state, and the plurality of lifting claws are all set to be deformable lifting claws which can extend and shorten along the length direction.

2. The handling frock of claim 1, wherein the frock body includes:

the top end of the suspender is provided with the connecting structure;

the hanging bracket comprises a hanging bracket base body positioned in a central area and a plurality of support arms extending from the hanging bracket base body to a peripheral area, the support arms are distributed around the hanging bracket base body, the hanging bracket base body is arranged at the bottom end of the hanging rod, the hanging rod can move relative to the hanging bracket along the length direction of the hanging rod, and the support arms are in one-to-one rotating connection with the hanging claws; and

the lifting device comprises a plurality of lifting claws, a plurality of lifting arms and a plurality of lifting claws, wherein the lifting arms are arranged in one-to-one correspondence with the lifting claws, one ends of the lifting arms are rotationally connected with the hanging rod, the other ends of the lifting arms are rotationally connected with the lifting claws one to one, when the hanging rod moves upwards relative to the lifting frame base body under the action of the pulling force, the lifting arms drive the lifting claws to rotate relative to the supporting arm, so that the lifting claws are in the extending state, and when the hanging rod moves downwards relative to the lifting frame base body after the pulling force is removed, the lifting arms drive the lifting claws to rotate reversely relative to the supporting arm, so that the lifting claws are in the retracting state.

3. The handling tool of claim 2, wherein the hanger base has a cavity, the bottom end of the boom is inserted into the cavity, the handling tool further comprises a locking assembly movably assembled to the hanger, the boom includes a locking engagement structure, the locking engagement structure includes an extended locking engagement structure and a retracted locking engagement structure distributed along a length direction of the locking assembly, in the retracted state, the locking assembly is engaged with the extended locking engagement structure to lock the boom and the hanger base relatively, and in the extended state, the locking assembly is engaged with the retracted locking engagement structure to lock the boom and the hanger base relatively.

4. The handling tooling of claim 3, wherein one of the locking assembly and the protruding locking engagement structure includes a locking pin and the other includes a protruding locking hole, the locking pin being inserted in the protruding locking hole in the protruding state; or

One of the locking component and the extending locking matching structure is provided as a lock pin, the other one is provided as a retracting locking hole, and in the retracting state, the lock pin is inserted into the retracting locking hole.

5. The hoisting tool of claim 3, wherein the hoisting tool comprises a remote controller, a controller and a first driving assembly, the controller is in communication connection with the remote controller and the first driving assembly, the first driving assembly is assembled on the hanger and in transmission connection with the locking assembly, and the controller controls the first driving assembly to drive the locking assembly to move according to a control command of the remote controller, and the locking assembly is matched with the locking matching structure to lock or unlock.

6. The hoisting tool of claim 1, further comprising an auxiliary hoisting claw rotatably arranged, wherein a gap for a load to enter is formed between the auxiliary hoisting claw and one of the plurality of hoisting claws, and in the extended state, the auxiliary hoisting claw is used for abutting against the outer end of the load in the radial direction.

7. The hoisting tool of claim 1, wherein at least one of the lifting claws is configured as a foldable and unfoldable deformable lifting claw, the lifting claw having a folded state and an unfolded state, the lifting claw being shortened in the folded state and lengthened in the unfolded state; or

At least one of the jaws is configured as a telescopically deformable jaw having an extended state in which the jaw is extended and a retracted state in which the jaw is shortened.

8. The hoisting tool of claim 1 or 7, which comprises a remote controller, a controller and a second driving assembly, wherein the hoisting claw comprises a main body connecting part used for being connected with the tool main body and a load connecting part used for being connected with a load, the main body connecting part and the load connecting part are movably arranged, the second driving assembly is in transmission connection with at least one of the main body connecting part and the load connecting part, the controller is electrically connected with the remote controller and the driving assembly, and the controller controls the second driving assembly to drive the main body connecting part and/or the load connecting part to move according to a hoisting claw control command sent by the remote controller, so that the hoisting claw is deformed in a stretching mode.

9. The hoisting tool of claim 2, wherein the lifting claw comprises an L-shaped connecting structure located at the bottom end, the L-shaped connecting structure comprises a vertical extending section and a transverse extending section which are connected, the vertical extending section and the transverse extending section jointly enclose a load hanging space with one side opened, and the transverse extending section is used for hanging a load.

10. The hoisting tool of claim 9, further comprising a bumper plate assembled to a side surface of the vertically extending section facing the load hanging space.

Technical Field

The application relates to a handling technical field particularly, relates to a handling frock.

Background

In the assembly process of products with large volume and heavy weight, the products are generally operated in a hoisting mode, the assembly of the generator is taken as an example, and the generator needs to be hoisted to the next station after the assembly of the generator at the station is completed. At present, the generator is hoisted by manually connecting the generator and a lifting appliance together, for example, lifting lugs and fastening bolts are installed, and the problems of low hoisting efficiency, high labor intensity and the like exist.

Disclosure of Invention

The application provides a handling frock can reduce intensity of labour, improves handling efficiency.

The utility model provides a handling frock, includes:

the tool main body is provided with a movable connecting component comprising a plurality of revolute pairs and comprises a connecting structure which is arranged at the top end and is used for being connected with a lifting appliance; and

the tool comprises a tool main body, a plurality of lifting claws, a plurality of rotating pairs and a plurality of connecting structures, wherein the tool main body is connected with the bottom end of the tool main body in a rotating mode, the plurality of lifting claws are distributed around the longitudinal center line of the tool main body, when upward pulling force is applied to the connecting structures, the plurality of rotating pairs in the tool main body rotate to drive the plurality of lifting claws to be switched to an extending state, the plurality of lifting claws can be connected with a load in the extending state, when the upward pulling force of the connecting structures is cancelled, the rotating pairs in the tool main body rotate reversely to drive the plurality of lifting claws to be switched to a retracting state, the plurality of lifting claws can be disconnected with the load in the retracting state, and the plurality of lifting claws are all set to be deformable lifting claws which can extend and shorten along the length direction.

Optionally, the tool main body includes:

the top end of the suspender is provided with the connecting structure;

the hanging bracket comprises a hanging bracket base body positioned in a central area and a plurality of support arms extending from the hanging bracket base body to a peripheral area, the support arms are distributed around the hanging bracket base body, the hanging bracket base body is arranged at the bottom end of the hanging rod, the hanging rod can move relative to the hanging bracket along the length direction of the hanging rod, and the support arms are in one-to-one rotating connection with the hanging claws; and

the lifting device comprises a plurality of lifting claws, a plurality of lifting arms and a plurality of lifting claws, wherein the lifting arms are arranged in one-to-one correspondence with the lifting claws, one ends of the lifting arms are rotationally connected with the hanging rod, the other ends of the lifting arms are rotationally connected with the lifting claws one to one, when the hanging rod moves upwards relative to the lifting frame base body under the action of the pulling force, the lifting arms drive the lifting claws to rotate relative to the supporting arm, so that the lifting claws are in the extending state, and when the hanging rod moves downwards relative to the lifting frame base body after the pulling force is removed, the lifting arms drive the lifting claws to rotate reversely relative to the supporting arm, so that the lifting claws are in the retracting state.

Optionally, the hanger base body is provided with a cavity, the bottom end of the boom is inserted into the cavity, the hoisting tool further comprises a locking assembly movably assembled to the hanger, the boom comprises a locking matching structure, the locking matching structure comprises an extending locking matching structure and a retracting locking matching structure which are distributed along the length direction of the boom, the locking assembly is matched with the extending locking matching structure to be locked in the retracting state, so that the boom and the hanger base body are relatively fixed, and the locking assembly is matched with the retracting locking matching structure to be locked in the extending state, so that the boom and the hanger base body are relatively fixed.

Optionally, one of the locking assembly and the protruding locking mating structure comprises a locking pin, and the other comprises a protruding locking hole, and in the protruding state, the locking pin is inserted into the protruding locking hole; or

One of the locking component and the extending locking matching structure is provided as a lock pin, the other one is provided as a retracting locking hole, and in the retracting state, the lock pin is inserted into the retracting locking hole.

Optionally, the hoisting tool comprises a remote controller, a controller and a first driving assembly, the controller is in communication connection with the remote controller and the first driving assembly, the first driving assembly is assembled on the hanger and is in transmission connection with the locking assembly, and the controller controls the first driving assembly to drive the locking assembly to move according to a control instruction of the remote controller, and the locking assembly is matched with the locking matching structure to lock or unlock.

Optionally, the handling frock still includes the supplementary lifting claw that rotates the setting, supplementary lifting claw with be equipped with between one of a plurality of lifting claws and be used for supplying the clearance that the load got into, under the state of stretching out, supplementary lifting claw is used for leaning on with the radial outer end of load.

Optionally, at least one of the lifting claws is provided as a foldable and unfoldable deformable lifting claw, the lifting claw has a folded state and an unfolded state, the lifting claw is shortened in the folded state and is lengthened in the unfolded state; or

At least one of the jaws is configured as a telescopically deformable jaw having an extended state in which the jaw is extended and a retracted state in which the jaw is shortened.

Optionally, the handling frock includes remote controller, controller and second drive assembly, the lifting claw including be used for with the main part connecting portion that the frock main part is connected and be used for with the load connecting portion that the load is connected, the main part connecting portion with load connecting portion activity sets up, the second drive assembly with at least one transmission in main part connecting portion and the load connecting portion is connected, the controller with the remote controller and the drive assembly electricity is connected, the controller according to the lifting claw control command control that the remote controller sent the second drive assembly drives main part connecting portion and/or the action of load connecting portion makes the flexible deformation of lifting claw.

Optionally, the lifting claw comprises an L-shaped connecting structure located at the bottom end, the L-shaped connecting structure comprises a vertical extending section and a horizontal extending section which are connected, the vertical extending section and the horizontal extending section jointly enclose a load hanging space with one side being open, and the horizontal extending section is used for hanging a load.

Optionally, the handling frock still includes the anticollision backplate, the anticollision backplate is assembled in vertical extension section and is faced a side surface in load articulates the space.

The technical scheme provided by the application can at least achieve the following beneficial effects:

the application provides a handling frock. The tool main body is connected with the plurality of lifting claws through the revolute pair, and the lifting claws can be driven to move in the lifting process, so that the lifting claws are in an extending state and a retracting state, the automatic connection between the lifting claws and a load is realized, or the connection between the lifting claws and the load is automatically released, lifting lugs or fastening bolts are not required to be connected to a lifting appliance manually, the labor intensity of workers during lifting is reduced, and the lifting efficiency is improved. In addition, the deformable lifting claw is adopted, so that the lifting of loads of different specifications can be met, the universality and the compatibility of the lifting tool are improved, and the requirement of multi-scene application is met.

Drawings

FIG. 1 is a schematic view of a handling tool shown in an exemplary embodiment of the present application;

FIG. 2 is a schematic view of the handling tool shown in FIG. 1 connected to a load;

FIG. 3 is a schematic view of the lifting claw of the lifting tool shown in FIG. 1 in an extended state;

figure 4 is a schematic view of the lifting claw of the handling tool shown in figure 1 in a retracted state;

FIG. 5 is a schematic view of a partial structure of the boom;

FIG. 6 is a schematic view of the base of the hanger bar being inserted into the hanger base;

FIG. 7 is a schematic view of a locking assembly;

FIG. 8 is a schematic view from yet another perspective of the handling tool shown in FIG. 1;

FIG. 9 is a schematic view of the shortening of the lifting claw;

figure 10 is a schematic view of the extension of the lifting claw.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with aspects of the present application.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Similarly, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one, and if only "a" or "an" is denoted individually. "plurality" or "a number" means two or more. Unless otherwise specified, "front", "back", "lower" and/or "upper", "top", "bottom", and the like are for ease of description only and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

Referring to fig. 1 and 2, fig. 1 is a schematic diagram illustrating a handling tool 100 according to an exemplary embodiment of the present application. Fig. 2 is a schematic view illustrating the connection of the handling tool 100 shown in fig. 1 to a load.

The application scenario of the hoisting tool 100 provided by the embodiment of the application is not limited, and the type of the hoisted article is not limited, for example, the hoisting tool may be a generator. The handling tool 100 is used with a lifting device, such as a gantry crane, an electric hoist, a crane, etc., which is not shown in the drawings. The lifting tool 100 can be driven to move by the lifting tool, and the lifting tool 100 is used for being connected with a load. The present application mainly describes a specific structure of the hoisting tool 100.

As shown in fig. 1, the lifting tool 100 includes a tool body 1 and a plurality of lifting claws 2. The tool body 1 is provided with a movable connecting component with a plurality of revolute pairs, and the tool body 1 comprises a connecting structure 101 which is arranged at the top end and is used for being connected with a lifting appliance in a matching mode. The attachment structure 101 includes, but is not limited to, a bail, a hook. In this embodiment, the connecting structure 101 includes a U-shaped ear 1010 and a sheave 1011 assembled to the U-shaped ear 1010. The plurality of grooved pulleys 1011 are arranged, two grooved pulleys 1011 are a group and are connected to two ends of the same shaft body 1012, the shaft body 1012 penetrates through the U-shaped lifting lug 1010, and the two grooved pulleys 1011 are located on two opposite sides of the U-shaped lifting lug 1010. The shaft body 1012 may be provided in plural, and the plural shaft bodies 1012 are arranged in parallel. In this embodiment, the axis body 1012 is provided with two, and the sheave 1011 is equipped with four, and the suspender is walked around the sheave 1011, is connected with the hoist, connects handling frock 100 in the hoist from this.

The plurality of lifting claws 2 are rotatably connected to the bottom end of the tool main body 1 and distributed around the longitudinal center line O of the tool main body 1. When an upward pulling force is applied to the connecting structure 101, the plurality of revolute pairs in the tool main body 1 rotate to drive the plurality of lifting claws 2 to be switched to the extended state, and the plurality of lifting claws 2 can be connected with a load 200 in the extended state (refer to fig. 2). When the upward pulling force applied to the connecting structure 101 is removed, the revolute pair in the tool main body 1 rotates in the opposite direction, the plurality of lifting claws 2 are driven to be switched to the retracted state, and the plurality of lifting claws 2 can be disconnected from the load in the retracted state.

According to the above description, when a load is hoisted, the hoisting tool 100 can be connected with the load through the hoisting tool 100, the hoisting tool 100 is lifted up, the plurality of hoisting claws 2 can be driven to extend out, so that the hoisting claws 2 are automatically connected with the load, otherwise, the hoisting tool 100 is put down, the plurality of hoisting claws 2 can be retracted, so that the hoisting claws 2 are automatically disconnected with the load, the hoisting tool and the load do not need to be connected through the hoisting lugs or the fastening bolts, the labor intensity of workers during hoisting is reduced, and the hoisting efficiency is improved. For example, taking a hoisting wind turbine as an example, the tool body 1 is placed on a flange opening by a hoisting tool, the plurality of hoisting claws 2 are in a retracted state and are located below a flange plate, the hoisting tool 100 is pulled upwards by the hoisting tool through the connecting structure 101 by the hoisting tool, so that the tool body 1 slowly rises and drives the plurality of hoisting claws 2 to be converted from the retracted state to an extended state, the flange plate is hooked by the plurality of hoisting claws 2 from the lower surface of the flange plate, and the wind turbine can be hoisted to a target position. On the contrary, after the wind motor is lifted to the target position, the lifting tool 100 is placed under the lifting tool by the lifting tool, when the pulling force applied to the connecting structure 101 disappears, the tool main body 1 moves downwards to drive the plurality of lifting claws 2 to be converted from the extending state to the retracting state, the lifting claws are separated from the lower surface of the flange plate, the connection with the wind motor is released, and the one-time lifting of the wind motor is completed.

Referring to fig. 3 and 4, fig. 3 is a schematic view illustrating the lifting claw 2 of the lifting tool 100 shown in fig. 1 in an extended state. Fig. 4 is a schematic view showing the lifting claw 2 of the lifting tool 100 shown in fig. 1 in a retracted state.

The tool body 1 includes a boom 10, a hanger 20, and a plurality of booms 40. The top end of the boom 10 is provided with a connecting structure 101, and the longitudinal center line O of the tool body 1 may be the axis of the boom 10 and extend in the longitudinal direction of the boom 10. The hanger 20 includes a hanger base 201 at a central region and a plurality of arms 202 extending from the hanger base 201 to a peripheral region, the plurality of arms 202 being distributed around the hanger base 201, the hanger base 201 being disposed at a bottom end of the hanger bar 10. In one embodiment, a plurality of arms 202 may be evenly distributed around the hanger base 201. The number of the arms 202 is not limited, and two or more arms may be provided. In this embodiment, three arms 202 are provided, spaced 120 apart, and a plurality of arms 202 may be configured to be removably (e.g., bolted) to the hanger base 201. In the embodiment shown in fig. 3, the hanger base 201 is configured as a triangular prism, and three arms 202 are attached to three sides of the hanger base 201.

The plurality of support arms 202 are arranged in one-to-one correspondence with the plurality of lifting claws 2 and are rotationally connected one to one, and the rotating shaft is A. The number of the support arm 202 and the lifting claw 2 is not limited, and two or more than two may be provided. In this embodiment, three support arms 202 and three lifting claws 2 are provided, and the lifting claws 2 are rotatably connected with the support arms 202 one by one. To facilitate the connection of the claw 2 to a load, the claw 2 may be connected to the end of the arm 202 on the side remote from the hanger base 201. Utilize three lifting claw 2 handling load, possess better stability.

The plurality of suspension arms 40 are arranged and correspond to the plurality of suspension claws 2 one by one, one ends of the plurality of suspension arms 40 are rotatably connected with the suspension rod 10, the rotating shaft is B, the other ends of the plurality of suspension arms 40 are rotatably connected with the suspension claws 2 one by one, and the rotating shaft is C. In order to facilitate the connection of the boom 10 to the plurality of booms 40, the boom 10 includes a plurality of connecting fins 11 corresponding to the booms 40 one by one, and the connecting fins 11 protrude toward the periphery of the boom 10.

The suspension rod 10 is movable up and down relative to the hanger 20 along its longitudinal direction, and the bottom end of the suspension rod 10 faces the hanger base 201. When the connecting structure 101 is pulled upwards, the suspension rod 10 moves upwards relative to the hanger base 201, and the suspension arm 40 applies a moment M to the suspension claw 2, so that the suspension claw 2 rotates around the rotating shaft a relative to the arm 202 and is in an extending state. When the connecting structure 101 is not pulled upwards, the suspension rod 10 can move downwards relative to the hanger base 201 by self weight, and the suspension arm 40 applies a reverse moment-M to the suspension claw 2, so that the suspension claw 2 rotates reversely relative to the arm 202 around the rotating shaft a and is in a retracted state. Figure 3 shows the lifting claw 2 in an extended position.

In the embodiment shown in fig. 3, the boom 40 comprises a plurality of sub-booms 401 extending in parallel, whereby the connection strength of the boom 40 can be increased. Two clamp plates 21 and 22 are formed at the upper end of the lifting claw 2 to be opposed to each other and spaced apart from each other, and the plurality of sub-booms 401 are held between the two clamp plates 21 and 22 and rotatably connected to the plurality of sub-booms 401 by a first shaft 23.

In the embodiment shown in fig. 3 and 4, the height of the rotation axis C of the claw 2 rotatably connected to the boom arm 40 is higher than the height of the rotation axis a of the claw 2 rotatably connected to the arm 202, and when the boom arm 40 applies a moment M rotating around the rotation axis C and a counter moment-M to the claw 2, the claw 2 rotates around the rotation axis a. The lower end of the lifting claw 2 is provided with an L-shaped connecting structure 24 for hanging connection with a load.

Referring to fig. 5 to 7, fig. 5 is a schematic view illustrating a partial structure of the suspension rod 10. Fig. 6 shows a schematic view of the bottom end of the boom 10 inserted into the hanger base 201. Fig. 7 shows a schematic view of the locking assembly 5.

In one embodiment, a cavity 2010 is formed on one side surface of the hanger base 201 facing the hanger bar 10, and the bottom end of the hanger bar 10 is inserted into the cavity 2010. The handling tool 100 further comprises a locking assembly 5 movably assembled to the hanger 20, the suspension rod 10 comprises a locking engagement structure 102 disposed at a bottom end, the locking engagement structure comprises an extending locking engagement structure 1020 and a retracting locking engagement structure 1021 distributed along a length direction of the suspension rod 10, and in the retracted state, the locking assembly 5 is engaged and locked with the retracting locking engagement structure 1021, so that the suspension rod 10 and the hanger base 201 are relatively fixed, and the lifting claw 2 is kept in the retracted state. Therefore, the lifting claw 2 can be always kept in the retraction state in the no-load state, and the collision of external objects or other parts of the load is avoided. In the extended state, the locking assembly 5 is locked with the extension locking engagement structure 1020, so that the suspension rod 10 and the suspension bracket base 201 are kept relatively fixed, and the suspension claw 2 is kept in the extended state. Therefore, the lifting claw 2 can be ensured to be always kept in an extending state and not to retract in the lifting process, and the load is reliably connected to the lifting claw 2. The locking assembly 5 can be driven by a power device such as a motor and the like to realize the locking and unlocking matched with the locking matching structure 102.

The specific embodiment of the locking assembly 5 and the locking engagement structure 102 is not limited. In one embodiment, one of the locking assembly 5 and the protruding locking engagement structure 1020 includes a lock pin 51, and the other includes a protruding locking hole, and in the protruding state, the lock pin 51 is inserted into the protruding locking hole to keep the lifting claw 2 in the protruding state. The locking structure is simple, and the locking operation and the unlocking operation are more convenient.

In one embodiment, one of the locking assembly 5 and the retraction locking engagement structure 1021 includes a lock pin 51 and the other includes a retraction lock hole, and in the retracted state, the lock pin 51 is inserted into the retraction lock hole. The locking structure is simple, and the locking operation and the unlocking operation are more convenient.

In this embodiment, the locking assembly 5 includes a lock pin 51, an extended lock engagement structure 1020 configured as an extended lock hole, and a retracted lock engagement structure 1021 configured as a retracted lock hole, wherein the extended lock hole is located above the retracted lock hole. Of course, in other embodiments, the locking assembly 5 may include a locking aperture, and the extended locking engagement 1020 and the retracted locking engagement 1021 each include a locking pin.

As shown in fig. 6, the side surface of the hanger base 201 is provided with a perforation 2012, and the perforation 2012 is penetrated by the lock pin 51, so that the lock pin 51 can be inserted into the expansion locking hole or retracted into the expansion locking hole. When the lifting claw 2 is in the extended state, the perforation 2012 is opposite to the unfolding locking hole, and the lock pin 51 is inserted into the unfolding locking hole through the perforation 2012. When the lifting claw 2 is in the retraction state, the perforation 2012 faces the retraction lock hole, and the lock pin 51 is inserted into the retraction lock hole through the perforation 2012.

As shown in fig. 7, the locking assembly 5 may further include a base 52, the locking pin 51 is connected to the base 52, and the base 52 may cooperate with a guide structure of the hanger base 201 to ensure that the locking pin 51 moves in a predetermined direction, and can be aligned with the opening locking hole or retracted locking hole during the locking process.

In one embodiment, as shown in fig. 5, the suspension rod 10 further includes a limiting structure 104 located above the hanger base 201, and the limiting structure 104 abuts against the hanger base 201 when the suspension rod 10 moves down to limit the relative displacement between the suspension rod 10 and the hanger base 201. The stop structure 104 can make the position of the suspension rod 10 more accurate when moving downwards and ensure that the through hole 2012 is opposite to the retraction locking hole. The specific implementation of the limiting structure 104 is not limited. In this embodiment, the limiting structure 104 is provided as a flange extending from the suspension rod 10 to the periphery, and the shape of the limiting structure 104 is the same as that of the hanger base 201, and is a triangular structure, but is not limited thereto.

Referring to fig. 8, fig. 8 is a schematic view of the lifting tool shown in fig. 1 from another perspective.

In one embodiment, the lifting tool 100 may further include a remote controller (not shown), a controller 3 and a first driving assembly 4, the first driving assembly 4 is assembled to the lifting frame 20 and is in transmission connection with the locking assembly 5, the controller 3 is in communication connection with the first driving assembly 4 and the remote controller, and the controller 3 controls the first driving assembly 4 to drive the locking assembly 5 to move according to a control instruction of the remote controller. In a specific embodiment, the remote controller may include "lock", "lock confirm", "unlock", and "unlock confirm" keys, and if the "unlock" and "unlock confirm" keys are pressed simultaneously, the controller 3 receives an unlock control instruction sent by the remote controller, and controls the first driving assembly 4 to drive the locking assembly 5 to retract, and unlock the locking fitting structure 102. If the "lock" and "lock confirm" keys are pressed simultaneously, the controller 3 receives a lock control command from the remote controller, and controls the first driving assembly 4 to drive the locking assembly 5 to extend out to be locked in cooperation with the locking cooperation structure 102. So configured, automatic locking and automatic unlocking of the locking assembly 5 with the locking mating structure 102 may be achieved by remote control. The first driving assembly 4 is used for outputting driving force, and the specific embodiment is not limited, and includes but is not limited to an electric cylinder.

In one embodiment, the hoisting tool 100 further comprises at least one auxiliary hoisting claw 6, a gap 61 for allowing a load to enter is arranged between the auxiliary hoisting claw 6 and one of the hoisting claws 2, and in the extending state, the auxiliary hoisting claw 6 is used for abutting against the outer end of the load in the radial direction through self weight. In this solution the auxiliary lifting claw 6 provides resistance to radial displacement of the load, reducing the risk of the load disengaging from the lifting claw 2. In one embodiment, the auxiliary jaw 6 may be rotatably connected to the jaw 2. In this embodiment, the auxiliary lifting claw 6 is rotatably connected to the support arm 202 about the rotation axis a. That is, the auxiliary lifting claw 6 and the lifting claw 2 rotate coaxially, so that the connection of the auxiliary lifting claw 6 can be facilitated, and the connection structure can be simplified. The auxiliary lifting claws 6 can be arranged in a plurality and are arranged in one-to-one correspondence with the lifting claws 2, and the connection modes of the auxiliary lifting claws 6 can adopt the same arrangement, which is not described again here.

With continued reference to fig. 8, as known in the foregoing, the lifting claw 2 includes an L-shaped connecting structure 24 at the bottom end, the L-shaped connecting structure 24 includes a vertical extending section 241 and a horizontal extending section 242 connected with each other, the vertical extending section 241 and the horizontal extending section 242 jointly enclose a load hanging space 243 with one side open, and the horizontal extending section 242 is used for hanging the load.

In one embodiment, the handling tool 100 may further include a bumper plate 7, and the bumper plate 7 is assembled on a side surface of the vertical extension 241 facing the load hanging space 243. The anti-collision protection plate 7 is used for contacting with a load, the vertical extension section 241 of the lifting claw 2 is prevented from directly contacting with the load, the effect of protecting the load is achieved, and the load is prevented from generating rigid impact on the lifting claw 2. The crash panel 7 may be made of a flexible material such as rubber, asbestos, silicone, or the like. In other embodiments, a surface of the auxiliary lifting claw 6 facing the load hanging space 243 may be provided with a guard plate.

Referring to fig. 9 and 10, fig. 9 is a schematic view showing the shortening of the lifting claw 2. Fig. 10 shows a schematic view of the elongation of the lifting claw 2.

The plurality of lifting claws 2 are each provided as a deformable lifting claw that is extensible and contractible in the length direction. In one embodiment at least one of the jaws 2 is arranged as a deformable jaw in a folded-out configuration, i.e. the jaw 2 has a folded-in configuration, in which the jaw is shortened, and an unfolded configuration, in which the jaw is elongated. In another embodiment at least one of said jaws 2 is provided as a telescopically deformable jaw, said jaw 2 having an extended state in which said jaw 2 is extended and a retracted state in which said jaw 2 is shortened. Therefore, the length of the lifting claw 2 can be adjusted according to the size of the load, so that the universality and the compatibility of the lifting tool 100 can be improved, and the requirement of multi-scene lifting is met.

In one embodiment, the lifting claw 2 is arranged to be automatically deformable. In a specific embodiment, the lifting claw 2 comprises a main body connecting part 25 used for being connected with the tool main body 1 and a load connecting part 26 used for being connected with a load, and the main body connecting part 25 is movably connected with the load connecting part 26. The handling tool 100 further comprises a second driving assembly (not shown) in transmission connection with the body connecting portion 25 and/or the load connecting portion 26, and the controller 3 is in communication connection with the second driving assembly. For example, a lifting claw control command may be sent to the controller 3 through a remote controller, and the controller 3 controls the second driving assembly to drive the main body connection portion 25 and/or the load connection portion 26 to move according to the lifting claw command, so as to cause the lifting claw 2 to deform in an extending and contracting manner. The remote controller may comprise an "extension", "extension confirmation", "shortening", and "shortening confirmation" button, and if the "extension" and "extension confirmation" buttons are pressed at the same time, the controller 3 controls the second driving assembly to drive the main body connecting portion 25 and/or the load connecting portion 26 to move to a side away from each other, so as to extend the hanging claw 2; if the "shorten" and "shorten confirm" keys are pressed simultaneously, the controller 3 controls the second driving unit to drive the body connecting portion 25 and/or the load connecting portion 26 to move toward the side close to each other, so that the hanging claw 2 is shortened.

The main body connection part 25 and the load connection part 26 can be movably connected by sleeving a sleeve, or the main body connection part 25 and the load connection part 26 can be movably connected by a flexible and deformable elastic structure. The second drive assembly includes, but is not limited to, an electric cylinder. In addition, the remote controller can also be provided with an 'on/alarm' key, the remote controller can be activated only by pressing the 'on/alarm' key, and other keys can work so as to ensure the reliability and the safety in the remote control process. The remote controller and the controller 3 can perform signal transmission within a range of 100 m.

Referring to fig. 8 again, the handling tool 100 may further include a battery box 8 and a signal lamp (not shown), wherein the battery box 8 is electrically connected to the controller 3, the first driving assembly 4, the second driving assembly, and the signal lamp to supply power to the controller 3, the first driving assembly 4, the second driving assembly, and the signal lamp. The controller 3 is electrically connected with the signal lamp and controls the signal lamp to emit light with different colors. For example, the auxiliary claws 6 are engaged with the flange surface, and the auxiliary claws 2 grip the radially outer end of the flange, and the signal lamp is turned on when "lock" and "lock confirmation" are pressed. After the crane lifts the engine to the destination, the hoisting tool 100 is put down, and when the unlocking and the unlocking confirmation are pressed, the signal lamp is turned on. The signal lamp can show different colours according to the state difference of handling in-process, provides warning effect for the staff. The battery box 8 can be provided with a voltage alarm function, and if the voltage of the battery in the battery box 8 is lower than 23.8V, the alarm can be automatically prompted.

The process of lifting a load by the lifting tool 100 is briefly described below.

Turning on a power supply, and checking each part;

the lifting claw 2 is in a retraction state, is connected with a lifting hook through a hanging strip, the lifting tool 100 descends along with the lifting hook, the locking pin 51 is confirmed to be in a locking state at the moment, and a signal lamp is turned on;

when the hoisting tool 100 is positioned on a circular generator, the tool body 1 is arranged on a flange opening of the generator, and the lifting claw 2 is positioned in the flange surface. When the unlocking and the unlocking confirmation are pressed, the controller 3 controls the first driving component 4 to drive the lock pin 51 to retract from the retraction lock hole and unlock, and the signal yellow light is on. Slowly lifting the lifting tool 100, hooking the flange surface by the lifting claws 2, grasping the radial outer end of the flange by the auxiliary lifting claws 6, pressing down to lock and confirm, lighting a red light by a signal lamp, and controlling the first driving assembly 4 to drive the lock pin 51 to insert into and extend out of the lock hole and lock by the controller 3. After the crane lifts the lifting tool 100 to a destination, the lifting tool 100 is put down, the unlocking and the unlocking confirmation are pressed, the signal lamp is turned on, and the controller 3 controls the first driving assembly 4 to drive the lock pin 51 to retract from the extending lock hole and unlock. And continuously lowering the hoisting tool 100, retracting the hoisting claw 2, loosening the generator flange, pressing down the 'locking' and 'locking confirmation' signal lamps to be red, controlling the first driving assembly 4 to drive the lock pin 51 to be inserted into the retracting lock hole and locked by the controller 3, and completing a hoisting process.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.