CN112978560A - Lifting appliance - Google Patents

Abstract

The application provides a lifting appliance, which comprises a base, a first clamping assembly, a second clamping assembly and an inhaul cable, wherein a pressing pin is arranged on the base. The first clamping assembly comprises a first clamping piece and a first guide piece which are connected, the first guide piece is slidably matched with the base in the first direction, the first guide piece is provided with a first force transmission pin, and the first guide piece is provided with a limiting pin. The second clamping assembly comprises a second clamping piece and a second guide piece which are connected, the second guide piece is matched with the base in a sliding mode in the second direction, and a second force transmission pin is arranged on the second guide piece; the first direction and the second direction have an included angle. One end and the base fixed connection of cable, the cable is around establishing in proper order outside first biography power round pin, pressure pin, second biography power round pin and spacer pin, and the cable is used for making first holder and second guide be close to each other in the first direction under the exogenic action to and make second holder and first guide be close to each other in the second direction. The workpiece is not easy to fall off in the hoisting process, and the safety is high.

Description

Lifting appliance

Technical Field

The invention relates to the technical field of hoisting, in particular to a lifting appliance.

Background

In the clamping, lifting, moving, stacking and unhooking work of some workpieces such as coil steel plates after being stripped, due to the fact that the size of the annular steel plates after being stripped is different, the annular steel plates are heavy in weight and complex in work, if a common hook or a magnetic attraction is used as a lifting tool, due to structural reasons, the dangerous conditions that loose coils slide and fall off and the like are easily caused in the clamping, lifting, moving, stacking and unhooking processes, objects are injured when small, people are injured to the disabilities when large, the phenomena that the operation process safety is poor and the accident rate is high can occur all the time.

Disclosure of Invention

The invention aims to provide a lifting appliance which can be suitable for lifting steel plate coils with different sizes, and has high safety in the operation process and low accident rate.

The embodiment of the invention is realized by the following steps:

in a first aspect, the present invention provides a spreader comprising:

the base is provided with a pressing pin;

the first clamping assembly comprises a first clamping piece and a first guide piece which are connected, the first guide piece is slidably matched with the base in a first direction, a first force transmission pin is arranged on the first clamping piece or the first guide piece, and a limiting pin is arranged on the first guide piece or the base;

the second clamping assembly comprises a second clamping piece and a second guide piece which are connected, the second guide piece is slidably matched with the base in the second direction, a second force transmission pin is arranged on the second clamping piece or the second guide piece, and the limiting pin is positioned on one side, close to the first force transmission pin, of the second force transmission pin; the first direction and the second direction form an included angle;

and the inhaul cable is used for enabling the first clamping piece and the second guide piece to be close to each other in the first direction and enabling the second clamping piece and the first guide piece to be close to each other in the second direction under the action of external force, so that the first clamping piece, the first guide piece, the second clamping piece and the second guide piece can be meshed with a workpiece together.

In an alternative embodiment, the base is provided with a first guide groove extending in the first direction, and the first guide member is slidably engaged with the first guide groove in the first direction.

In an alternative embodiment, the base is provided with a second guide groove extending in the second direction, and the second guide member is slidably engaged with the second guide groove in the second direction.

In an optional embodiment, the base comprises two connected outer plates, two longitudinal guide blocks arranged at intervals in the second direction are arranged on the inner side plate surface of each outer plate, and the two longitudinal guide blocks and the corresponding outer plates jointly define a first guide groove; the first guide pieces are arranged into two, the two first guide pieces are connected, and the two first guide pieces are respectively in sliding fit with the two first guide grooves.

In an optional embodiment, the base further includes four transverse guide blocks, two of the four transverse guide blocks form a group, the two transverse guide blocks in the same group are simultaneously connected with the two longitudinal guide blocks on the same outer plate, the two transverse guide blocks are arranged at intervals in the first direction, and the two transverse guide blocks jointly define a second guide groove; the second guide part sets up to two, and two second guide parts are connected and the two respectively with two second guide slot sliding fit.

In an alternative embodiment, the hold-down pin is connected to both lateral guides adjacent to the first clamp member.

In an optional embodiment, the first guide part is provided with a first clamping portion, the second guide part is provided with a second clamping portion, the first clamping portion and the second clamping portion are both used for abutting against the workpiece, the first clamping portion and the second clamping portion are arranged in a crossed mode, and the crossed position of the first clamping portion and the second clamping portion is located outside the base.

In an alternative embodiment, the stay is provided as a chain or rope.

In an alternative embodiment, the hold-down pin is pivotally connected to the base;

or the first force transmission pin is rotationally connected with the first guide piece;

or the second force transmission pin is rotationally connected with the second guide piece;

or the limiting pin is rotatably connected with the second guide piece or the base.

In an optional embodiment, the lifting appliance further comprises a gantry and a hoist, the hoist is connected with the gantry, and the hoist is connected with the cable and used for hoisting the cable.

The embodiment of the invention has the beneficial effects that:

in summary, the embodiment provides a lifting appliance, when lifting a workpiece, such as an annular steel plate coil, the guy cable is connected with the lifting machine, the lifting machine is used to lower the guy cable until the first clamping piece or the second clamping piece can contact with the ground or the workpiece, the gravity of the whole lifting appliance acts on the ground or the workpiece, and the lifting appliance bears the load through the ground. Then, the lifting appliance can be manually operated, the first clamping piece and the second clamping piece are far away from each other, the clamping area is increased, a workpiece to be lifted is embedded into the clamping area, then the lifting appliance is used for lifting the inhaul cable, the inhaul cable drives the base, the first clamping assembly and the second clamping assembly to move, under the combined action of the pressing pin, the first force transmission pin, the second force transmission pin and the limiting pin, the first clamping piece and the second guide piece are close to each other in the first direction, the second clamping piece and the first guide piece are close to each other in the second direction, the clamping area is gradually reduced, and the first clamping piece, the first guide piece, the second clamping piece and the second guide piece are meshed with the workpiece together. When hanging work piece ground surface, the gravity of work piece passes through the occlusive force that the hoist turned into the interlock work piece, and consequently, the gravity of work piece is big more, and the occlusive force of hoist interlock work piece is big more, so, stability is higher when the work piece hoists, is difficult for coming off from the hoist, and the security is high, and the accident rate is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a spreader according to an embodiment of the present invention;

fig. 2 is a schematic side view of a spreader according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a base, a first clamping assembly and a second clamping assembly according to an embodiment of the invention;

FIG. 4 is a schematic structural diagram of a workpiece hoisted by the lifting appliance according to the embodiment of the invention;

fig. 5 is a schematic diagram of a modified structure of the spreader of the embodiment of the invention;

fig. 6 is a schematic diagram of a hoisting structure of an application scenario of the spreader in the embodiment of the present invention;

fig. 7 is a schematic view of a hoisting structure of another application scenario of the spreader according to the embodiment of the invention.

Icon:

001-ring-shaped steel plate coil stock; 100-a base; 110-an outer plate; 120-longitudinal guide block; 130-a lateral guide block; 140-a hold down pin; 150-a first guide channel; 160-a second guide groove; 170-fixed seat; 180-a handle; 200-a first clamping assembly; 210-a first guide; 211-a first clamping section; 220-a first clamp; 221-a first clamping side; 230-a first power transfer pin; 240-limit pin; 300-a second clamping assembly; 310-a second guide; 311-a second clamping part; 320-a second clamp; 321-a second clamping side; 322-a guide ramp; 330-a second force transfer pin; 400-a pull cable; 500-a portal frame; 600-elevator.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

At present, when hoisting annular steel sheet coil stock 001, because the size of annular steel sheet coil stock 001 is inconsistent, and is not of uniform size, weight is different, when utilizing current hoist annular steel sheet coil stock 001, current hoist can not adapt to the annular steel sheet coil stock 001 of multiple not big difference, easily appears slipping during hoist and drop etc. accident, and the security is poor.

Referring to fig. 1 to 7, in view of this, a designer designs a lifting appliance, which can be adapted to the annular steel plate coil 001 with different sizes and weights, and the lifting appliance has high stability when being lifted with different annular steel plate coil 001, is not easy to have accidents such as falling off and slipping off, has high safety, and greatly reduces the accident rate.

It should be understood that, in the following embodiments, unless otherwise specified, the first direction is an ab arrow direction in the drawings, the second direction is a cd arrow direction in the drawings, and the first direction and the second direction are perpendicular.

Referring to fig. 1, in the present embodiment, the spreader includes a base 100, a first clamping assembly 200, a second clamping assembly 300 and a pulling cable 400, and a pressing pin 140 is disposed on the base 100. The first clamping assembly 200 includes a first clamping member 220 and a first guiding member 210 connected to each other, the first guiding member 210 is slidably engaged with the base 100 in a first direction, a first force-transmitting pin 230 is disposed on the first clamping member 220 or the first guiding member 210, and a limit pin 240 is disposed on the first guiding member 210 or the base 100. The second clamping assembly 300 includes a second clamping member 320 and a second guiding member 310 connected to each other, the second guiding member 310 is slidably engaged with the base 100 in the second direction, a second force-transmitting pin 330 is disposed on the second clamping member 320 or the second guiding member 310, and the limiting pin 240 is located on a side of the second force-transmitting pin 330 close to the first force-transmitting pin 230; the first direction and the second direction have an included angle. One end of the pull cable 400 is fixedly connected with the base 100, the pull cable 400 is sequentially wound outside the first force transmission pin 230, the pressing pin 140, the second force transmission pin 330 and the limiting pin 240, and the pull cable 400 is used for enabling the first clamping piece and the second guiding piece 310 to approach each other in the first direction and enabling the second clamping piece and the first guiding piece 210 to approach each other in the second direction under the action of external force, so that the first clamping piece 220, the first guiding piece 210, the second clamping piece 320 and the second guiding piece 310 can jointly engage with a workpiece.

It should be noted that, in this embodiment, the first direction is perpendicular to the second direction, and during the hoisting process, the first direction is substantially vertical, and the second direction is substantially horizontal. Obviously, in other embodiments, the first direction and the second direction may also be other angles.

When the lifting appliance provided by the embodiment lifts a workpiece, such as an annular steel plate coil 001, the stay cable 400 is connected with the lifting machine 600, the lifting machine 600 is used for enabling the stay cable 400 to descend until the first clamping piece 220 or the second clamping piece 320 can be contacted with the ground or the workpiece, the gravity of the whole lifting appliance acts on the ground or the workpiece, and the lifting appliance bears the load through the ground. Then, the lifting appliance can be manually operated to make the first clamping piece 220 and the second clamping piece 320 far away from each other, the clamping area is increased, the workpiece to be lifted is embedded into the clamping area, then the pulling cable 400 is lifted by the lifting machine 600, the pulling cable 400 drives the base 100, the first clamping assembly 200 and the second clamping assembly 300 to move, under the combined action of the pressing pin 140, the first force transmission pin 230, the second force transmission pin 330 and the limiting pin 240, the first clamping piece 220 and the second guiding piece 310 approach each other in the first direction, meanwhile, the second clamping piece 320 and the first guiding piece 210 approach each other in the second direction, the clamping area gradually becomes smaller, and finally, the first clamping piece 220, the first guiding piece 210, the second clamping piece 320 and the second guiding piece 310 jointly engage the workpiece. When hanging work piece ground surface, the gravity of work piece passes through the occlusive force that the hoist turned into the interlock work piece, and consequently, the gravity of work piece is big more, and the occlusive force of hoist interlock work piece is big more, so, stability is higher when the work piece hoists, is difficult for coming off from the hoist, and the security is high, and the accident rate is low.

Specifically, when the hoist hoists the workpiece, the interaction force between the hoist and the workpiece includes: during the process of hoisting the workpiece, the gravity of the workpiece is not borne by the ground, the gravity of the workpiece is borne by the first clamping piece 220, and under the action of the pull cable 400, the first force transmission pin 230 and the pressing pin 140, the first clamping piece 220 and the second guiding piece 310 approach each other and clamp the workpiece together in a first direction; under the combined action of the inhaul cable 400, the first force transmission pin 230, the pressing pin 140, the second force transmission pin 330 and the limiting pin 240, the second clamping piece 320 and the first guide piece 210 are close to each other and clamp a workpiece together in the second direction, so the workpiece is clamped by the lifting appliance in the first direction and the second direction simultaneously, the workpiece is clamped by the lifting appliance stably and reliably, the clamping force of the lifting appliance is related to the gravity of the workpiece, the larger the gravity of the workpiece is, the larger the clamping force is, the more stable the workpiece is clamped, the workpiece is not easy to fall off or slide off, the safety is high, and the accident rate is low.

Referring to fig. 2 and 3, in the present embodiment, the base 100 optionally includes two outer plates 110, two sets of longitudinal guide blocks 120, and two sets of transverse guide blocks 130. Every planking 110 all sets up to the rectangular plate, and two planking 110 are relative interval sets up, and two planking 110 pass through mounting fixed connection such as bolt. Each set of the longitudinal guide blocks 120 includes two longitudinal guide blocks 120, the two sets of the longitudinal guide blocks 120 are respectively connected to the two outer plates 110, and each of the longitudinal guide blocks 120 is located between the two outer plates 110, that is, the longitudinal guide block 120 is connected to the inner plate surface of the corresponding outer plate 110. The two longitudinal guide blocks 120 of the same group are arranged at intervals in the second direction, the two longitudinal guide blocks 120 and the corresponding outer plate 110 jointly define a first guide groove 150, the first guide groove 150 extends along the first direction, and the first guide groove 150 may be a rectangular groove. In this way, the two sets of longitudinal guide blocks 120 and the two outer plates 110 together define two first guide slots 150, and the first guide member 210 is simultaneously slidably engaged with the two first guide slots 150. Each set of the transverse guide blocks 130 includes two transverse guide blocks 130, and the two sets of the transverse guide blocks 130 are respectively connected to the two sets of the longitudinal guide blocks 120, that is, the two transverse guide blocks 130 of the same set are both connected to the two longitudinal guide blocks 120 of the same set, and one transverse guide block 130 is simultaneously connected to the two longitudinal guide blocks 120 of the same set, the two transverse guide blocks 130 of the same set are arranged at intervals in the first direction, and a second guide slot 160 is formed between the two transverse guide blocks 130 of the same set. Thus, the two sets of lateral guide blocks 130 and the two sets of longitudinal guide blocks 120 together define two independent second guide slots 160, the two sets of lateral guide blocks 130 have a space therebetween for accommodating the second guide member 310, and the second guide member 310 is simultaneously in sliding fit with the two second guide slots 160.

It should be understood that the outer plate 110 and the longitudinal guide blocks 120 and the lateral guide blocks 130 corresponding to the outer plate 110 may be fixed by bolts.

In other embodiments, the number of the longitudinal guide blocks 120 and the lateral guide blocks 130 is not limited to four, for example, the longitudinal guide blocks 120 carrying the same side of the first guide member 210 may be one or more, and the lateral guide blocks 130 carrying the same side of the second guide member 310 may be one or more.

Further, the longitudinal guide 120 and the lateral guide 130 may be configured as a bar-shaped block, the longitudinal guide 120 extending in a first direction, and the lateral guide 130 extending in a second direction. The length of the outer plate 110 extends along a third direction, which has an angle with both the first direction and the second direction.

In addition, in other embodiments, the lateral guide blocks 130 and the longitudinal guide blocks 120 may be provided as bolts connecting the two outer plates 110.

Optionally, the base 100 further includes a fixing seat 170 for fixing the cable 400, and the fixing seat 170 is disposed between the two lateral guide blocks 130 and is connected to the two lateral guide blocks 130.

Optionally, a handle 180 is disposed on the fixing base 170, so that the base 100 can be lifted by the handle 180, and the base 100 can slide in the first direction relative to the first guide rod.

Referring to fig. 3, further, the pressing pin 140 is disposed between the two lateral guide blocks 130 and is fixedly connected to the two lateral guide blocks 130. The hold down pin 140 is located between the first force transfer pin 230 and the second force transfer pin 330 in the first direction and between the first force transfer pin 230 and the second force transfer pin 330 in the second direction. Thus, the position of the pressing pin 140 is reasonable, the length of the cable 400 can be reduced on the premise that the external force applied to the cable 400 can be transmitted, and the cost is saved. That is, in the case where the positions of the first clamping assembly 200 and the second clamping assembly 300 are the same, the pressing pin 140 is disposed between the first force transmission pin 230 and the second force transmission pin 330, so that the length of the cable 400 wound around the first force transmission pin 230, the pressing pin 140, and the second force transmission pin 330 can be reduced, the overall length of the cable 400 can be reduced, and the cost can be reduced.

Referring to fig. 2 and 3, in the present embodiment, optionally, two first guide members 210 are disposed, the two first guide members 210 are disposed oppositely and fixedly connected by a fixing member such as a bolt, the two first guide members 210 are both located between the two outer plates 110 and are respectively in sliding fit with the two first guide slots 150, the first guide members 210 can only slide in a first direction relative to the first guide slots 150, and the first guide members 210 are relatively fixed with the base 100 in a second direction. Further, each of the first guide members 210 is provided as a rectangular bar. A first force transmission pin 230 and a limit pin 240 are disposed between the two first guide members 210, and both the first force transmission pin 230 and the limit pin 240 are connected to the two first guide members 210, for example, the first force transmission pin 230 or the limit pin 240 may be fixedly connected to the two first guide members 210 by welding. The first force-transmitting pin 230 and the stopper pin 240 are spaced apart in the first direction. The hold down pin 140 is located between the first power transfer pin 230 and the restraint pin 240.

Optionally, the first clamping member 220 is configured as a clamping plate, and the first clamping member 220 is disposed between the two first guiding members 210 and is fixedly connected to the two first guiding members 210 at the same time. The clamping plate may be detachably connected to the two first guides 210, for example, by bolts, so as to facilitate replacement of the first clamping member 220. The first clamping member 220 protrudes from the first guide member 210 in the second direction, so that the first guide member 210 and the first clamping member 220 form an "L" shaped structure, one side of the first guide member 210 where the first clamping member 220 protrudes is provided with a first clamping portion 211, and the first clamping portion 211 may be a clamping plane. In the first direction, the hold-down pin 140 is located between the stopper pin 240 and the first clamping member 220, and a side of the first clamping member 220 close to the hold-down pin 140 is set as a first clamping side 221.

Obviously, in other embodiments, the first clamping members 220 may be provided in two, two first clamping members 220 are located between the two first guiding members 210, the two first clamping members 220 are fixedly connected with the two first guiding members 210 respectively, and the two first clamping members 220 may also be fixedly connected by bolts.

Referring to fig. 2 and 3, in the present embodiment, optionally, two second guiding members 310 are provided, the two second guiding members 310 are disposed opposite to each other and fixedly connected by a fixing member such as a bolt, the two second guiding members 310 are both located between the two outer plates 110 and are respectively in sliding fit with the two second guiding grooves 160, the second guiding members 310 can only slide in the second direction relative to the second guiding grooves 160, and the second guiding members 310 are relatively fixed with the base 100 in the first direction. Further, each of the second guide members 310 is provided as a rectangular bar. A second force transmission pin 330 is arranged between the two second guiding members 310, and the second force transmission pin 330 is connected with the two second guiding members 310 at the same time, for example, the second force transmission pin 330 may be fixedly connected with the two second guiding members 310 by welding.

Alternatively, the second clamping member 320 is configured as a clamping plate, and the second clamping member 320 is disposed between the two second guiding members 310 and is fixedly connected to the two second guiding members 310 at the same time. The clamping plate may be detachably connected to the two second guiding members 310, for example, by bolts, so as to facilitate replacement of the second clamping member 320. The second clamping member 320 protrudes the second guide member 310 in the first direction, so that the second guide member 310 and the second clamping member 320 form an "L" shaped structure, one side of the second guide member 310 on which the second clamping member 320 protrudes is provided with a second clamping portion 311, and the second clamping portion 311 may be a clamping plane. In the second direction, the second force-transmission pin 330 is located between the second clamping member 320 and the pressing pin 140, and a side of the second clamping member 320 close to the second force-transmission pin 330 is provided as a second clamping side 321.

Obviously, in other embodiments, two second clamping members 320 may be provided, two second clamping members 320 are located between the two second guiding members 310, the two second clamping members 320 are fixedly connected with the two second guiding members 310, respectively, and the two second clamping members 320 may also be fixedly connected by bolts.

Further, a guiding inclined plane 322 is arranged on one side of the second clamping member 320 close to the second force transmission pin 330, and the guiding inclined plane 322 is used for guiding the second clamping member 320 to contact with a workpiece to be hoisted.

Further, the thickness of first holder 220 in the first direction is less than the thickness of second holder 320 in the second direction, and hoist and mount work piece in-process compares second holder 320, and first holder 220 atress is bigger, consequently sets up its thickness bigger, and structural strength is high, is difficult for being damaged. The first clamping piece 220 and the second clamping piece 320 are not consistent in thickness, and cost can be reduced.

In this embodiment, the pulling cable 400 is optionally provided as a chain or a rope, and the rope may be a steel cable. The cable 400 is arranged between the two first guiding elements 210 and the two second guiding elements 310 in a penetrating manner, one end of the cable 400 is fixedly connected with the fixing seat 170, the other end of the cable 400 penetrates out from one end, far away from the first clamping element 220, of the first guiding element 210, and the penetrating end of the cable is used for being connected with the hoisting machine 600. The inhaul cable 400 is simultaneously contacted with the two second guide pieces 310, the position of the inhaul cable 400 is stable, the whole stress formed by the lifting appliance and the workpiece is more stable in the lifting process, the whole lifting appliance is not easy to deflect, and the safety is better.

In actual assembly, one end of the cable 400 passes through one side of the two first guide members 210 far away from the second clamping member 320 and is fixed with the fixed seat 170, the position where the cable 400 is connected with the fixed seat 170 is located between the first force transmission pin 230 and the pressing pin 140, the cable 400 firstly passes through the first force transmission pin 230 from one side of the first force transmission pin 230 far away from the fixed seat 170, then passes through the pressing pin 140 from one side of the pressing pin 140 far away from the second force transmission pin 330, then passes through the second force transmission pin 330 from one side of the second force transmission pin 330, and passes through the limiting pin 240 from one side of the limiting pin 240 close to the second force transmission pin 330, and passes through one side of the first guide member 210 far away from the second clamping member 320, in this way, when an external force is applied to one end of the cable 400 far away from the fixed seat 170, the cable 400 can drive the first clamping member 220 and the second guide member 310 to approach each other in a first direction, and drive the second clamping member 320 and the first guide member 210 to approach each other in a second, the first clamping part 211, the first clamping side 221, the second clamping part 311 and the second clamping side 321 are enabled to jointly engage with the workpiece, and clamping of the workpiece is achieved.

It should be understood that during the process of lifting the workpiece, the pull cable 400 is always kept in contact with the pressing pin 140, the first force-transmitting pin 230, the second force-transmitting pin 330 and the limiting pin 240, and generates relative movement, so that the pressing pin 140, the first force-transmitting pin 230, the second force-transmitting pin 330 and the limiting pin 240 can be set to be rotatable to reduce friction, that is, the pressing pin 140 is rotatably connected with the base 100, the first force-transmitting pin 230 is rotatably connected with the first guide 210, the second force-transmitting pin 330 is rotatably connected with the second guide 310, and the limiting pin 240 is rotatably connected with the second guide 310. Obviously, in other embodiments, one of the hold-down pin 140, the first force-transmission pin 230, the second force-transmission pin 330 and the stopper pin 240 is provided in a rotatable manner.

Referring to fig. 4, in this embodiment, after the first clamping assembly 200 and the second clamping assembly 300 are assembled with the base 100, the first clamping portion 211 on the first guide 210 is opposite to the second clamping portion 320 in the second direction, the second clamping portion 311 on the second guide 310 is opposite to the first clamping portion 220 in the first direction, the first clamping portion 211 and the second clamping portion 311 are vertically crossed, and the crossing position of the first clamping portion 211 and the second clamping portion 311 is located outside the base 100, that is, outside the outer plate 110, so that the clamping area formed by the first clamping portion 211, the second clamping portion 311, the first clamping side 221, and the second clamping side 321 is not blocked by the base 100, and the contact area between the first clamping portion 211 and the workpiece and the contact area between the second clamping portion 311 and the workpiece are large, and the clamping is stable and reliable, and the safety is high.

Referring to fig. 5, in the present embodiment, optionally, the spreader further includes a gantry 500 and a hoist 600, the hoist 600 is connected to the gantry 500, and the hoist 600 is connected to the cable 400 and used for hoisting the cable 400. The hoist 600 may be an electric hoist. It should be appreciated that gantry 500 may be configured as a walk-behind structure to facilitate position adjustment.

In the hanger provided in this embodiment, during operation, the lifter 600 lowers the hanger, the first clamping unit 200 and the second clamping unit 300 can be opened to clamp a part of the workpiece, the lifter 600 then lifts the cable 400, the hanger and the workpiece are lifted together, and finally the workpiece is lifted by the hanger. In the workpiece hoisting process, the clamping force of the lifting appliance for clamping the workpiece is positively correlated with the gravity of the workpiece, the workpiece is not easy to fall off or slide off in the workpiece hoisting process, the safety is high, and the accident rate is low.

Referring to fig. 6, for example, in the actual operation process, the hanger can hang a plurality of annular steel plate coils 001 stacked on the ground, and the hanger hangs one annular steel plate coil 001 at the top at a time. When the lifting device 600 controls the lifting device to descend to the position where the first clamping member 220 can abut against the lower side of the annular steel plate coil 001 at the top, the operation of the lifting device 600 is stopped. The first clamping piece 220 is manually inserted below the annular steel plate coil 001 at the top, the second clamping piece 320 is pulled, the second clamping piece 320 is located on the inner side of the annular steel plate coil 001, then the second clamping piece 320 and the base 100 are simultaneously close to the first clamping piece 220, the second clamping piece 320 is clamped on the inner side of the annular steel plate coil 001, at the moment, the first clamping portion 211 abuts against the outer side of the annular steel plate coil 001, and the second clamping portion 311 abuts against the top side of the annular steel plate coil 001, so that the lifting appliance and the annular steel plate coil 001 to be lifted are positioned. Then, the lifter is started, the cable 400 is pulled, and when the cable 400 is stretched straight, that is, the cable 400 abuts against the first force transmission pin 230, the pressing pin 140, the second force transmission pin 330 and the limiting pin 240, the hanger and the workpiece are lifted together, and the lifting and transporting operation is performed. So reciprocal, a plurality of annular steel sheet coil stocks 001 that will pile up hoist and mount the transportation in proper order.

Referring to fig. 7, it should be understood that the hanger can also be hung on a plurality of annular steel plate coils 001 arranged along a horizontal straight line.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A spreader, comprising:

the base is provided with a pressing pin;

the first clamping assembly comprises a first clamping piece and a first guide piece which are connected, the first guide piece is slidably matched with the base in a first direction, a first force transmission pin is arranged on the first clamping piece or the first guide piece, and a limiting pin is arranged on the first guide piece or the base;

the second clamping assembly comprises a second clamping piece and a second guide piece which are connected, the second guide piece is slidably matched with the base in the second direction, a second force transmission pin is arranged on the second clamping piece or the second guide piece, and the limiting pin is positioned on one side, close to the first force transmission pin, of the second force transmission pin; the first direction and the second direction form an included angle;

and the inhaul cable, the one end of inhaul cable with base fixed connection, the inhaul cable is in proper order around establishing first biography power round pin compress tightly the round pin second biography power round pin and outside the spacer pin, the inhaul cable is used for making under the exogenic action first holder with the second guide is in be close to each other on the first direction, and make the second holder with first guide is in be close to each other on the second direction, thereby enable first holder, first guide, second holder and the common interlock work piece of second guide.

2. The spreader of claim 1, wherein:

the base is provided with a first guide groove extending along the first direction, and the first guide piece is matched with the first guide groove in a sliding mode in the first direction.

3. The spreader of claim 2, wherein:

the base is provided with a second guide groove extending along the second direction, and the second guide piece is matched with the second guide groove in a sliding mode in the second direction.

4. The spreader of claim 3, wherein:

the base comprises two connected outer plates, the inner side plate surface of each outer plate is provided with two longitudinal guide blocks which are arranged at intervals in the second direction, and the two longitudinal guide blocks and the corresponding outer plates jointly define the first guide groove; the first guide pieces are two in number, and the two first guide pieces are connected and are in sliding fit with the two first guide grooves respectively.

5. The spreader of claim 4, wherein:

the base further comprises four transverse guide blocks, two transverse guide blocks in the four transverse guide blocks form a group, the two transverse guide blocks in the same group are simultaneously connected with the two longitudinal guide blocks on the same outer plate, the two transverse guide blocks are arranged at intervals in the first direction, and the two transverse guide blocks jointly define the second guide groove; the number of the second guide pieces is two, the two second guide pieces are connected and are respectively in sliding fit with the two second guide grooves.

6. The spreader of claim 5, wherein:

the hold-down pin is simultaneously connected with the two lateral guide blocks close to the first clamping piece.

7. The spreader of claim 1, wherein:

the first guide piece is provided with a first clamping part, the second guide piece is provided with a second clamping part, the first clamping part and the second clamping part are used for abutting against a workpiece, the first clamping part and the second clamping part are arranged in a crossed mode, and the crossed position of the first clamping part and the second clamping part is located outside the base.

8. The spreader of claim 1, wherein:

the inhaul cable is arranged as a chain or a rope.

9. The spreader of claim 1, wherein:

the pressing pin is rotatably connected with the base;

or the first force transmission pin is rotationally connected with the first guide piece;

or the second force transmission pin is rotationally connected with the second guide piece;

or the limiting pin is rotatably connected with the second guide piece or the base.

10. The spreader of claim 1, wherein:

the lifting appliance further comprises a portal frame and a lifting machine, the lifting machine is connected with the portal frame, and the lifting machine is connected with the inhaul cable and used for lifting the inhaul cable.

Images