CN218403395U - Hoisting device - Google Patents

Abstract

The present disclosure relates to a hoisting device, including: a frame body; the lifting mechanism is arranged on the frame body and is used for lifting the piece to be lifted in the vertical direction; and the clamping mechanism is arranged on the frame body and comprises a first driving assembly and two clamping pieces positioned on two opposite sides of the lifting mechanism in the vertical direction, the first driving assembly is in driving connection with the two clamping pieces to drive the two clamping pieces to move close to or away from each other, and a clamping space positioned below the lifting mechanism is formed between the two clamping pieces. So, treat the handling piece from the relative centre gripping in both sides of treating the handling piece through two holders, can make to treat that the handling piece is difficult for rocking and be difficult to take place to treat the condition that the handling piece accident falls after being hung to predetermined position by handling mechanism, when having improved handling security, can also reduce because of treating the unexpected unnecessary loss of property that falls and lead to of handling piece.

Description

Hoisting device

Technical Field

The disclosure relates to the field of hoisting, in particular to a hoisting device.

Background

The hoisting refers to a general term of installation and positioning of equipment by a crane or a hoisting mechanism, and various hoisting machines are used for hoisting the equipment, workpieces, appliances, materials and the like in the process of maintenance or repair so as to change the positions of the equipment. The steam turbine is the important equipment of modern thermal power plant, and in the in-process of overhauing the steam turbine, generally adopt the steam turbine of thermal power plant to overhaul and hoist the steam turbine part with hoisting device.

Among the correlation technique, current hoisting device for steam turbine maintenance of thermal power plant is difficult to avoid the steam turbine part to take place the condition of rocking after the hoist, takes place the condition that the steam turbine part accident dropped easily, takes place the incident easily.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide a hoist device, this hoist device can be after treating the handling piece to hoist to preset position, maintains the stability of treating the handling piece to at least partly solve the problem in the related art.

In order to achieve the above object, the present disclosure provides a hoisting device, comprising:

a frame body;

the lifting mechanism is arranged on the frame body and is used for lifting the piece to be lifted in the vertical direction; and

the clamping mechanism is arranged on the frame body and comprises a first driving assembly and two clamping pieces located on two opposite sides of the lifting mechanism in the vertical direction, the first driving assembly is in driving connection with the two clamping pieces to drive the two clamping pieces to move close to or away from each other, and a clamping space located below the lifting mechanism is formed between the two clamping pieces.

Optionally, the frame body comprises a frame main body with an accommodating space, the lifting mechanism comprises a reel, the reel is located in the accommodating space and can be rotatably connected to the frame main body around a self axis, the reel is provided with a plurality of accommodating grooves which are arranged at intervals along the axial direction, slings wound on the reel are arranged in the accommodating grooves, one ends of the slings extending out of the reel movably penetrate through the frame main body and are connected with connecting pieces, and the diameters of the slings are different from each other.

Optionally, the handling mechanism still includes the second drive assembly, the second drive assembly includes first motor and transfer line, the transfer line can set up around self axis ground of rotating on the frame main part, the coaxial fixed cover of reel is in on the transfer line, first motor with the transfer line drive is connected.

Optionally, the first driving assembly comprises a first guiding piece, a two-way threaded rod and a second motor, the two-way threaded rod can be rotatably arranged on the frame body around the axis of the two-way threaded rod, two ends of the two-way threaded rod are respectively located on two opposite sides of the frame body, the second motor is in driving connection with the two-way threaded rod, the two clamping pieces are respectively in threaded connection with two external threads of the two-way threaded rod, the two clamping pieces are oppositely screwed, and the first guiding piece is used for guiding the two clamping pieces to move close to or away from each other.

Optionally, the first guide part includes two slide bars corresponding to the two clamping members one to one, the two slide bars and the two-way threaded rod extend in the same direction and are respectively located on two opposite sides of the frame body, and the slide bars are slidably connected to the corresponding clamping members to guide the clamping members to move along the extending direction of the slide bars.

Optionally, the support body still including being located two guide boards of the relative both sides of frame main part, the guiding groove has been seted up to the bottom surface of guide board, the extending direction of guiding groove with the extending direction of two-way threaded rod is the same, the top of holder be provided with corresponding guiding groove sliding connection's slider.

Optionally, the holder includes the splint, the bottom of splint be provided with be used for the butt in treat the buffer block of handling.

Optionally, the buffer block is configured as a rubber block, and a plurality of stabilizing grooves arranged at intervals in the vertical direction are formed on a side wall surface facing the clamping space.

Optionally, the hoisting device further comprises:

the frame body is movably arranged on the sliding rail along the extending direction of the sliding rail, and two ends of the sliding rail are connected with supporting beams for supporting the sliding rail; and

and the third driving assembly is in driving connection with the frame body and is used for driving the frame body to move.

Optionally, the frame body includes movably cup jointing in the sliding frame of slide rail, be provided with on the interior roof of sliding frame with slide rail rolling contact's pulley, third drive assembly constructs for electronic slide rail, electronic slide rail's track with the slide rail syntropy extends, just orbital both ends connect respectively through the connecting seat in the slide rail, electronic slide rail's drive end with the top fixed connection of sliding frame.

Through above-mentioned technical scheme, through two clamping pieces from the relative centre gripping of both sides of treating the handling piece and treating the handling piece, can make to treat that the handling piece is difficult for rocking and be difficult to take place to treat the condition that the handling piece accident falls after the handling to the setting position by handling mechanism, when having improved handling security, can also reduce because of treating the unexpected unnecessary loss of property that falls and lead to of handling piece.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure, but do not constitute a limitation of the disclosure. In the drawings:

fig. 1 is a schematic view of the overall structure of a lifting device provided in an exemplary embodiment of the present disclosure;

fig. 2 is a cross-sectional structural schematic view of a lifting device provided in an exemplary embodiment of the present disclosure;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 provided in an exemplary embodiment of the present disclosure;

fig. 4 is an enlarged structural schematic diagram at B in fig. 2 provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

1-a frame body; 101-a frame body; 1012-an accommodation space; 102-a guide plate; 1021-a guide groove; 1022-a slider; 103-a sliding frame; 1031-pulley; 104-an opening; 2, a hoisting mechanism; 201-a reel; 2011-holding tank; 2012-a separator plate; 202-a sling; 203-a connector; 204-a second drive assembly; 2041-a first motor; 2042-a drive rod; 3-a clamping mechanism; 301-a first drive assembly; 3011-a first guide; 30111-a slide bar; 3012-a two-way threaded rod; 3013-a second motor; 302-a clamp; 3021-Splint; 303-a buffer block; 3031-a stabilizing trough; 304-a tube sleeve; 305-a horizontal plate; 4-a slide rail; 5-a support beam; 501-a fixed seat; 6-a third drive assembly; 601-a track; 7-connecting seat.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the use of directional words such as "upper and lower" generally means "upper and lower" opposing in the direction of gravity when the respective components are in use, and reference may be made to upper and lower in the drawings of fig. 1 to 2. "inner and outer" refer to the inner and outer contours of a component or structure itself. In addition, it should be noted that the terms "first", "second", and the like are used in the present disclosure to distinguish one element from another, and have no order or importance. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.

In a specific embodiment provided by the present disclosure, there is provided a hoisting device, as shown in fig. 1 to 2, including: a frame body 1; the lifting mechanism 2 is arranged on the frame body 1 and is used for lifting the piece to be lifted in the vertical direction; and the clamping mechanism 3 is arranged on the frame body 1 and comprises a first driving assembly 301 and two clamping pieces 302 which are positioned on two opposite sides of the lifting mechanism 2 in the vertical direction, the first driving assembly 301 is in driving connection with the two clamping pieces 302 so as to drive the two clamping pieces 302 to move close to or far away from each other, and a clamping space positioned below the lifting mechanism 2 is formed between the two clamping pieces 302.

Through above-mentioned technical scheme, treat the handling piece from the relative centre gripping in both sides of treating the handling piece through two holder pieces 302, can make to treat that the handling piece is difficult for rocking and be difficult to take place to treat the unexpected circumstances of falling of handling piece after 2 handling to the setting position by handling mechanism, when having improved handling security, can also reduce because of treating the unexpected unnecessary loss of property that falls and lead to of handling piece.

The hoisting device provided by the disclosure can be applied to any suitable scene, and the to-be-hoisted piece can also be equipment, a workpiece, an appliance, a material and the like according to the practical application scene. For example, in an application scenario, when hoist device was applied to the hoist and mount maintenance of steam turbine, need utilize handling mechanism 2 to wait for the handling piece to hoist the operation to the steam turbine, the personnel carry out subsequent maintenance operation to the steam turbine that lifts by crane, after the steam turbine lifts by crane, the condition of rocking easily can appear, in order to be in relatively stable state after can making the steam turbine after the lift by crane, fixture 3 has been added to this disclosure, carry out the centre gripping to the steam turbine after lifting by crane through fixture 3, reduce the range of rocking of the steam turbine after lifting by crane, reduce the steam turbine accident that leads to because of rocking the problem and fall.

In other application scenarios, the hoisting mechanism 2 disclosed by the invention can be used for hoisting other devices, workpieces, appliances and materials according to actual requirements, and is not only used for hoisting and overhauling a steam turbine.

In addition, the hoisting mechanism hoists the to-be-hoisted piece to a preset position, the preset position refers to hoisting the to-be-hoisted piece to a preset height, and according to the preset height, through the design of the clamping mechanism 3, the clamping space between the two clamping pieces 302 corresponds to the preset position. From this, after treating that the handling piece is hoisted to preset position, through fixture 3's centre gripping, can prevent treating rocking of handling piece to when treating that the handling piece is in preset position and overhauls, perhaps treat that the handling piece transports along with handling mechanism (will be described below), can guarantee to treat the stability of handling piece, prevent that it from rocking even dropping etc..

In some embodiments, referring to fig. 2, the rack body 1 may include a frame main body 101 having a receiving space 1012, the lifting mechanism 2 includes a reel 201, the reel 201 is located in the receiving space 1012 and is rotatably connected to the frame main body 101 around its axis, the reel 201 has a plurality of receiving grooves 2011 arranged at intervals in the axial direction, a sling 202 wound on the reel 201 is disposed in the receiving groove 2011, one end of the sling 202 extending out of the reel 201 movably penetrates through the frame main body 101 and is connected with a connecting member 203, wherein the plurality of slings 202 have different diameters.

In some implementable modes, the winding drum 201 is divided into a plurality of accommodating grooves 2011 through the partition plate 2012 on the winding drum 201, a sling 202 is installed on each accommodating groove 2011, one end of the sling 202 is connected to the winding drum 201, the other end extends out of the frame main body 101 through the opening 104 arranged on the lower surface of the frame main body 101, a connecting piece 203 is installed at the end part of the sling 202 extending out of the frame main body 101, the connecting piece 203 is used for being connected to an element to be lifted, the winding drum 201 is divided into a plurality of accommodating grooves 2011 through the partition plate 2012, and the sling 202 is installed in each accommodating groove 2011, so that the requirement for lifting the elements to be lifted (equipment, workpieces, appliances and materials) in various different types is met, before the elements to be lifted are lifted, the slings 202 with different diameters can be selected according to actual needs to lift the elements to be lifted.

Similarly, the connecting pieces 203 mounted on the slings 202 with different diameters are different in size, and the slings 202 and the connecting pieces 203 matched with the sizes of the pieces to be lifted are selected according to the sizes of the pieces to be lifted.

In some embodiments, as shown in fig. 1 to 2, the connecting member 203 in the present disclosure may be configured as a hook, a hanging ring, or a loop.

In some embodiments, referring to fig. 2, the lifting mechanism 2 further includes a second driving assembly 204, the second driving assembly 204 includes a first motor 2041 and a transmission rod 2042, the transmission rod 2042 is rotatably disposed on the frame body 101 around its axis, the drum 201 is coaxially fixed on the transmission rod 2042, and the first motor 2041 is drivingly connected to the transmission rod 2042.

As for the description of the second driving assembly 204, one embodiment is that a horizontal plate 305 is fixedly connected in the frame body 101, then the first motor 2041 is installed on the horizontal plate 305, a first driving bevel gear is installed on an output shaft of the first motor 2041, a first driven bevel gear meshed with the first driving bevel gear is installed on the transmission rod 2042, the output shaft of the first motor 2041 rotates, the output shaft drives the first driving bevel gear to rotate, the first driving bevel gear drives the first driven bevel gear to rotate, the first driven bevel gear drives the transmission rod 2042 to rotate, when the transmission rod 2042 rotates, the winding drum 201 fixedly connected with the transmission rod 2042 rotates together, and finally the first motor 2041 drives the winding drum 201 to rotate so as to wind or release a suspension cable, so as to be used for hoisting or lowering a to-be-hoisted piece.

In the description of the second driving assembly 204, another embodiment is that the first motor 2041 may be mounted on the outer wall of the frame body 101, the first motor 2041 may be mounted on the outer wall of the frame body 101 by means of a bracket or other structural members, an output shaft of the first motor 2041 is connected to the transmission rod 2042 by a coupling, and the transmission rod 2042 is directly driven by the output shaft of the first motor 2041; it should be noted that in the embodiment, the connection between the output shaft of the first motor 2041 and the transmission rod 2042 is implemented by using a coupling, and one end of the transmission rod 2042 needs to be extended out of the frame body 101, so that the installation by a person is facilitated.

In the above two embodiments of the second driving assembly 204, in order to ensure the stable rotation of the driving rod 2042 in the frame body 101, a bearing may be installed at the connection portion of the driving rod 2042 and the frame body.

In some embodiments, referring to fig. 2, the first driving assembly 301 includes a first guiding mechanism, a two-way threaded rod 3012 and a second motor 3013, the two-way threaded rod 3012 is disposed on the frame body 101 in a manner of being rotatable around its axis and has two ends respectively located at two opposite sides of the frame body 101, the second motor 3013 is connected to the two-way threaded rod 3012 in a driving manner, the two clamping members 302 are respectively connected to two segments of external threads with opposite rotation directions of the two-way threaded rod 3012 in a threaded manner, and the first guiding member 3011 is configured to guide the two clamping members 302 to move closer to or away from each other.

For the description of the second driving assembly 204, an embodiment is that a horizontal plate 305 is fixedly connected in the frame body, then the second motor 3013 is installed on the horizontal plate 305, a second driving bevel gear is installed on an output shaft of the second motor 3013, a second driven bevel gear meshed with the second driving bevel gear is installed in the middle of the bidirectional threaded rod 3012, the output shaft of the second motor 3013 rotates, the output shaft drives the second driving bevel gear to rotate, the second driving bevel gear drives the second driven bevel gear to rotate, the second driven bevel gear drives the bidirectional threaded rod 3012 to rotate, and the second motor 3013 drives the bidirectional threaded rod 3012 to rotate.

In the description of the second driving assembly 204, another embodiment is that a horizontal plate 305 is fixedly connected in the frame body 101, then the second motor 3013 is installed on the horizontal plate 305 (at this time, the axis of the output shaft of the second motor 3013 is in the same direction as the axis of the bidirectional threaded rod 3012), a driving sprocket is installed on the output shaft of the second motor 3013, a driven sprocket is installed at the middle of the bidirectional threaded rod 3012, the driving sprocket and the driven sprocket are driven by a chain, when the output shaft of the second motor 3013 rotates, the driving sprocket drives the driven sprocket to rotate by the chain, and further the second motor 3013 drives the bidirectional threaded rod 3012 to rotate.

In some embodiments, as shown in fig. 1 and 2, the first guide 3011 may include two sliding bars 30111 corresponding to the two clamping members 302 one by one, the two sliding bars 30111 extend in the same direction as the two-way threaded bar 3012 and are respectively located at two opposite sides of the frame body 101, and the sliding bars 30111 are slidably connected to the corresponding clamping members 302 to guide the clamping members 302 to move along the extending direction of the sliding bars 30111.

The sliding rod 30111 is used to drive the two clamping members 302 to move along the extending direction of the sliding rod 30111, in order to ensure the stable movement of the two clamping members 302, a pipe sleeve 304 is arranged on the clamping member 302, and a linear bearing sleeved on the sliding rod 30111 is arranged in the pipe sleeve 304, so that the clamping member 302 moves stably and smoothly.

In some embodiments, referring to fig. 2 and 4, the rack body 1 further includes two guide plates 102 located at two opposite sides of the frame main body 101, a guide groove 1021 is opened at a bottom surface of the guide plates 102, an extending direction of the guide groove 1021 is the same as an extending direction of the bidirectional threaded rod 3012, and a slider 1022 slidably connected to the corresponding guide groove 1021 is provided at a top end of the clamping member 302.

The guide plate 102 may be located at the upper end of the frame body, the sliding block 1022 at the top of the clamping member 302 is slidably connected in the guiding groove 1021 on the lower surface of the guide plate 102, and the sliding block 1022 is disposed in the guiding groove 1021, which is beneficial in guiding the clamping member 302 to move along the extending direction of the guide plate 102, and ensuring that the contact position of the clamping member 302 and the guide plate 102 is vertically disposed.

In some embodiments, referring to fig. 4, the clamp 302 comprises a clamp plate 3021, and the bottom end of the clamp plate 3021 is provided with a buffer block 303 for abutting against the member to be lifted.

When the clamp plate 3021 needs to clamp the to-be-lifted piece from two sides, the buffer block 303 for abutting against the to-be-lifted piece is arranged at the bottom of the clamp plate 3021, so that direct impact between the clamp plate and the to-be-lifted piece can be reduced, and the to-be-lifted piece is prevented from being damaged.

In some embodiments, as shown in fig. 3, the buffer block 303 is configured as a rubber block and has a plurality of stabilizing grooves 3031 spaced apart in the vertical direction opened on a side wall surface facing the clamping space.

When the two clamp plates 3021 clamp the to-be-lifted piece, in order to enable the two clamp plates 3021 to more firmly clamp the to-be-lifted piece, the buffer block 303 is provided with the stabilizing groove 3031, so that the friction force between the to-be-lifted piece and the buffer block 303 can be increased.

In some embodiments, referring to fig. 2, the hoist device further comprises: the frame body 1 is movably arranged on the sliding rail 4 along the extending direction of the sliding rail 4, and two ends of the sliding rail 4 are connected with supporting beams 5 for supporting the sliding rail 4; and the third driving assembly 6 is in driving connection with the frame body 1 and is used for driving the frame body 1 to move.

In some embodiments, as shown with reference to fig. 1 to 2, when needing to overhaul, for example, a steam turbine, only need through handling mechanism 2 lift can, but in order to satisfy more user demands, for example, when can realizing treating that handling piece lifts and descends, can also treat that handling piece transports, in order to transport to other station or position according to the demand, from this, this disclosure is through setting up slide rail 4 and third drive assembly 6, third drive assembly 6 is used for driving support body 1 to remove along the extending direction of slide rail 4 to can realize treating the transportation of handling piece. In addition, in the transferring process of the to-be-lifted piece, the to-be-lifted piece is clamped by the clamping mechanism 3, and the stability of the to-be-lifted piece in rotation can be guaranteed.

In some embodiments, referring to fig. 1, a fixing seat 501 is fixedly connected to the bottom of the supporting beam 5, and the hoisting device is integrally fixed on the ground through the fixing seat 501, so as to ensure the stability of the hoisting device.

In some embodiments, referring to fig. 2, the frame body 1 includes a sliding frame 103 movably sleeved on the sliding rail 4, a pulley 1031 in rolling contact with the sliding rail 4 is disposed on an inner top wall of the sliding frame 103, the third driving assembly 6 is configured as an electric sliding rail 4, a rail 601 of the electric sliding rail 4 extends in the same direction as the sliding rail 4, two ends of the rail 601 are respectively connected to the sliding rail 4 through a connecting seat 7, and a driving end of the electric sliding rail 4 is fixedly connected to a top end of the sliding frame 103. When the electric slide rail 4 drives the slide frame 103 to move along the extending direction of the rail 601, the pulley 1031 on the inner top wall of the slide frame 103 rotates and moves along the extending direction of the slide rail 4, and the pulley 1031 plays a role in assisting movement, so that the slide frame 103 can stably and smoothly move. In addition, the electric slide rail 4 may be one known in the art, and the present disclosure is not limited thereto.

In some practical manners, as shown in fig. 1 to 2, the lower surface of the sliding frame 103 is fixedly connected to the frame main body 101, the inner top wall of the sliding frame 103 is provided with a pulley 1031 disposed in cooperation with the sliding rail 4, for the selection of the pulley 1031, for example, a V-shaped, U-shaped, or H-shaped 304 stainless steel bearing pulley may be selected, corresponding fitting structures may be disposed on the sliding rail 4 according to different types of pulleys 1031, for example, when the pulley 1031 is an H-shaped or V-shaped pulley, a strip-shaped protrusion extending in the same direction as the sliding rail 4 may be disposed on the sliding rail 4 to cooperate with the H-shaped or V-shaped pulley.

The present disclosure exemplarily describes the operation of the hoist device as follows.

When a to-be-lifted piece needs to be overhauled, a worker selects the slings 202 meeting the size and the connecting pieces 203 connected to the end portions of the slings 202 according to the actual size of the to-be-lifted piece, after the selection is finished, the first motor 2041 is started, the winding drum 201 is driven by the first motor 2041 to rotate, the slings 202 wound on the winding drum 201 are released, after the slings 202 are released to the proper length, the first motor 2041 is stopped, the to-be-lifted piece is fixed through the connecting pieces 203, after the fixing is finished, the first motor 2041 is started, the slings 202 are wound, the to-be-lifted piece is lifted up, the to-be-lifted piece reaches the preset position, the to-be-lifted piece is located between the two clamping pieces 302 at the moment, then the first motor 2041 is stopped, the second motor 3013 is started, the second motor 3013 drives the bidirectional threaded rod 3012 to rotate so that the two clamping pieces 302 are close to each other, until the two clamping pieces 302 clamp the to-be-lifted piece, after the two clamping pieces 302 clamp the to-be-lifted piece, the to-lifted piece is clamped, the to-be-lifted piece is stopped, the second motor 3013, and the worker overhauled piece is stopped, and overhauled after the second motor 3013 is stopped.

According to the requirement, the piece to be lifted can be transported, a person selects the sling 202 meeting the size and the connecting piece 203 connected to the end part of the sling 202 according to the actual size of the piece to be lifted, after the selection is finished, the first motor 2041 is started, the winding drum 201 is driven by the first motor 2041 to rotate, the sling 202 wound on the winding drum 201 is released, after the sling 202 is released to a proper length, the first motor 2041 is stopped, the piece to be lifted is fixed through the connecting piece 203, after the fixing is finished, the first motor 2041 is started, the sling 202 is wound, the piece to be lifted is lifted off, the piece to be lifted reaches a preset position, the piece to be lifted is positioned between the two clamping pieces 302, the first motor 2041 is stopped, the second motor 3013 is started, the second motor 3013 drives the bidirectional threaded rod 3012 to rotate to enable the two clamping pieces 302 to approach each other, the method comprises the steps that until two clamping pieces 302 clamp a piece to be lifted from two sides, after the two clamping pieces 302 clamp the piece to be lifted, a second motor 3013 is stopped, after the second motor 3013 is stopped, an electric slide rail 4 is started, the piece to be lifted is conveyed along with a lifting mechanism 2 through the driving of the electric slide rail 4, after the piece to be lifted is conveyed to a specified position, the electric slide rail 4 is stopped, the second motor 3013 is started, the second motor 3013 drives a bidirectional threaded rod 3012 to rotate so that the two clamping pieces 302 are away from each other, the clamping of the clamping pieces 302 on the piece to be lifted is released, then a first motor 2041 is started, the first motor 2041 drives a winding drum 201 to rotate, slings 202 wound on the winding drum 201 are released, the piece to be lifted is gradually and stably fallen to the specified position, and finally a connecting piece 203 fixed on the piece to be lifted is taken down, and the piece to be lifted is conveyed.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A lifting device, comprising:

a frame body;

the lifting mechanism is arranged on the frame body and is used for lifting the piece to be lifted in the vertical direction; and

the clamping mechanism is arranged on the frame body and comprises a first driving assembly and two clamping pieces located on two opposite sides of the lifting mechanism in the vertical direction, the first driving assembly is in driving connection with the two clamping pieces to drive the two clamping pieces to move close to or away from each other, and a clamping space located below the lifting mechanism is formed between the two clamping pieces.

2. The hoisting device as recited in claim 1, wherein the frame body comprises a frame body with a receiving space, the hoisting mechanism comprises a reel, the reel is located in the receiving space and is rotatably connected to the frame body around its axis, the reel has a plurality of receiving grooves arranged at intervals along the axial direction, the receiving grooves are provided with slings wound on the reel, one ends of the slings extending out of the reel movably penetrate through the frame body and are connected with connecting pieces, and the diameters of the slings are different from each other.

3. The hoisting device as recited in claim 2, wherein the hoisting mechanism further comprises a second driving assembly, the second driving assembly comprises a first motor and a transmission rod, the transmission rod is rotatably disposed on the frame body around its axis, the drum is coaxially fixed and sleeved on the transmission rod, and the first motor is in driving connection with the transmission rod.

4. The hoisting device as recited in claim 2, wherein the first driving assembly comprises a first guiding member, a two-way threaded rod and a second motor, the two-way threaded rod is rotatably disposed on the frame body around its axis and has two ends respectively located at two opposite sides of the frame body, the second motor is drivingly connected to the two-way threaded rod, the two clamping members are respectively threadedly connected to two sections of external threads with opposite rotation directions of the two-way threaded rod, and the first guiding member is used for guiding the two clamping members to move toward or away from each other.

5. The hoisting device of claim 4, wherein the first guide member comprises two slide bars corresponding to the two clamping members one by one, the two slide bars extending in the same direction as the bidirectional threaded rod and being respectively located at two opposite sides of the frame body, and the slide bars being slidably connected to the corresponding clamping members to guide the clamping members to move along the extending direction of the slide bars.

6. The hoisting device according to claim 4, wherein the frame body further comprises two guide plates located at opposite sides of the frame body, guide grooves are formed in bottom surfaces of the guide plates, extending directions of the guide grooves are the same as extending directions of the bidirectional threaded rods, and sliding blocks slidably connected with the corresponding guide grooves are arranged at top ends of the clamping pieces.

7. The hoisting device of claim 1, wherein the clamping member comprises a clamping plate, and a buffer block for abutting against the member to be hoisted is arranged at the bottom end of the clamping plate.

8. The hoisting device as recited in claim 7, wherein the buffer block is a rubber block and has a plurality of stabilizing grooves formed on a side wall surface thereof facing the clamping space and spaced apart from each other in a vertical direction.

9. The hoisting device of any one of claims 1-8, further comprising:

the frame body is movably arranged on the sliding rail along the extending direction of the sliding rail, and two ends of the sliding rail are connected with supporting beams for supporting the sliding rail; and

and the third driving assembly is in driving connection with the frame body and is used for driving the frame body to move.

10. The hoisting device as recited in claim 9, wherein the frame body comprises a sliding frame movably sleeved on the sliding rail, a pulley in rolling contact with the sliding rail is disposed on an inner top wall of the sliding frame, the third driving assembly is configured as an electric sliding rail, a rail of the electric sliding rail extends in the same direction as the sliding rail, two ends of the rail are respectively connected to the sliding rail through a connecting seat, and a driving end of the electric sliding rail is fixedly connected to a top end of the sliding frame.

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