CN211545643U - Automatic hoisting accessory suitable for cylindrical thin shell is transported - Google Patents

Abstract

The utility model discloses an automatic hoisting device suitable for transferring a cylindrical thin shell, which comprises a heavy clamp and a hoisting mechanism connected with the upper end of the heavy clamp; heavy anchor clamps include the base, clamping jaw and push-and-pull power device, and there is the arc grip block bottom the base, and the shape of clamping jaw matches with the shape of arc holding body, and a pair of clamping jaw is connected on the base about arc grip block symmetric connection, and the upper end of two clamping jaws articulates respectively has push-and-pull power device, and the slide rail when the arc grip block of base bottom is regarded as the clamping jaw motion simultaneously, and push-and-pull power device push-and-pull clamping jaw slides along the slide rail and realizes the centre gripping and unclamp the product operation. The clamp can clamp and hold the cylindrical thin shell under the condition of small space clearance. The lifting mechanism is a rigid mechanism and comprises a lifting power device and a guide cylinder, the lower end of the guide cylinder is fixed at the upper end of the base through a connecting seat, the lifting power device and the guide cylinder are concentrically connected in the guide cylinder, and the lifting of the heavy clamp is realized through the lifting power device.

Description

Automatic hoisting accessory suitable for cylindrical thin shell is transported

Technical Field

The utility model relates to a hoisting device specifically is a hoisting device that is used for the automatic hoist and mount of thin cylindrical shell.

Background

In the transfer process of large cylindrical thin shell products, hoisting is needed, but the hoisting fixture is influenced by space limitation conditions due to the fact that the length-diameter ratio of the hoisting fixture is large and is usually several meters or even tens of meters long, the weight can reach dozens of tons, and the shell is thin, so that the common hoisting fixture cannot be directly applied.

At present, the transportation of large cylindrical thin shell products mainly adopts an artificial hoisting mode, but due to the characteristics of the products, equipment for artificial hoisting generally adopts a traveling crane or a crane, the traveling crane or the crane is hoisted through a steel wire rope, the steel wire rope is a flexible body, unstable swinging and shaking conditions exist in the hoisting process, safety accidents easily occur, and therefore, a plurality of professionals are required to cooperate to hoist, and the hoisting efficiency is low.

In addition, the transportation of large cylindrical thin shell products is generally carried by van vehicles, and the width of the transportation vehicles is limited by road regulations, so that the clearance between the outer surface of the product and the wall of a carriage is small during the shipment. When the product is transported to a designated place and transferred from a vehicle, the product cannot be lifted by using the travelling crane and the crane, because the product needs to be manually wound by using the hanging strip in the radial direction when the product is lifted by using the travelling crane or the crane, the product cannot be operated obviously under the condition that the distance between the product and the carriage wall is small. And the common hoisting clamp can not be operated in a narrow clearance space to clamp and hoist the large cylindrical thin shell product.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic device that lifts by crane of the large-scale cylindrical thin casing product of automatic centre gripping in ability follow narrow and small clearance space to make lifting devices such as driving a vehicle or loop wheel machine can utilize this device to transport large-scale cylindrical thin casing product.

The utility model provides an automatic hoisting device suitable for transferring a cylindrical thin shell, which comprises a heavy clamp and a hoisting mechanism connected with the upper end of the heavy clamp; the heavy clamp comprises a base, clamping jaws and a push-pull power device, wherein an arc-shaped clamping plate is arranged at the bottom of the base, the shape of the clamping jaws is matched with that of an arc-shaped clamping body, a pair of clamping jaws are symmetrically connected to the base about the arc-shaped clamping plate, the push-pull power device is hinged to the upper ends of the two clamping jaws respectively, the arc-shaped clamping plate at the bottom of the base is used as a sliding rail when the clamping jaws move, and the push-pull power device pushes and pulls the clamping jaws to slide along the sliding rail to; the lifting mechanism is a rigid mechanism and comprises a lifting power device and a guide cylinder, the lower end of the guide cylinder is fixed at the upper end of the base through a connecting seat, the lifting power device and the guide cylinder are concentrically connected in the guide cylinder, and the lifting of the heavy clamp is realized through the lifting power device.

In an embodiment of the above technical scheme, the base is a rectangular frame structure, and includes radial connecting plates, axial connecting plates and top enclosing plates, the two radial connecting plates are symmetrically arranged in front and back, the two axial connecting plates are symmetrically connected to the bottoms of the two ends of the radial connecting plates in left and right directions, and the top enclosing plates connect the tops of the two radial connecting plates into a whole.

In an embodiment of the above technical scheme, the radial connecting plate includes the rectangular plate and the arc grip block, vertical arrangement is followed to the rectangular plate, and its lower base is about its length direction central plane to the symmetrical last concave arc wall, and the groove face of concave arc wall is connected on the arc grip block laminating, and outside the inboard of arc grip block stretched out in the inboard of rectangular plate, the both ends of arc grip block still symmetry stretch out the spacing boss.

In one embodiment of the above technical scheme, the two axial ends of the clamping jaw are symmetrically provided with thinning sections, the upper side of the clamping jaw is provided with a U-shaped groove along the axial direction of the clamping jaw, the two ends of the U-shaped groove are provided with bosses matched with the limiting bosses, and the inner arc surface of the thinning section is a profiling surface of the upper surface of the arc-shaped clamping plate; the middle parts of the U-shaped grooves on the upper sides of the two clamping jaws are respectively provided with a pair of ear plates, and the two pairs of ear plates are symmetrically arranged about the central plane of the clamping jaws in the length direction.

In an embodiment of the above technical solution, the inner surface of the axial connecting plate has a profiling surface of the outer surface of the clamping jaw, and the axial connecting plate is connected with the radial connecting plate to form a section of sliding groove of the clamping jaw.

In one embodiment of the technical scheme, the top enclosing plate comprises two inverted V-shaped plates and a multi-shaped plate connected between the two inverted V-shaped plates, the top of each inverted V-shaped plate is a horizontal transition edge, the two inverted V-shaped plates are connected to the tops of two ends of the two radial connecting plates, the top plates of the multi-shaped plates are connected with the top edges of the inverted V-shaped plates in a flush manner, and the outer edges of the two horizontal side plates are connected with the upper edges of the radial connecting plates in a flush manner; two pairs of lug plates are arranged on two sides of the length direction central plane of the top plate of the n-shaped plate, and the transverse positions of the two pairs of lug plates correspond to the lug plates on the two clamping jaws respectively.

In one embodiment of the above technical scheme, the push-pull power device is an oil cylinder, the end of the cylinder body is hinged to an ear plate on the top coaming through a pin shaft, and the end of the piston rod is hinged to an ear plate in the middle of the U-shaped groove on the upper side of the clamping jaw through a pin shaft; and two ends of the top between the two radial connecting plates are symmetrically connected with reinforcing support rods, and the reinforcing support rods are respectively positioned on the outer sides of the piston rods of the oil cylinders on the corresponding sides.

In an embodiment of the above technical scheme, it is multistage flexible hydro-cylinder to promote power device, the guide cylinder includes the concentric suit of multilayer, the barrel of relative slip, is provided with non-metallic material's welt between the adjacent barrel, and the bottom of inlayer barrel is provided with a pair of otic placode about its axial direction central plane symmetry, and the round pin axle that the piston rod head of multistage flexible hydro-cylinder and two otic placodes are connected is articulated, the bed plate of cylinder body upper end is connected with the outermost barrel upper end of guide cylinder.

In one embodiment of the above technical scheme, the number of layers of the cylinder body of the guide cylinder is the same as the number of stages of the piston rod of the lifting power device, the lower end of the innermost cylinder body of the guide cylinder is provided with a flange plate, the lower end of the connecting seat is connected to the n-shaped plate of the enclosing plate of the base, and the upper end of the connecting seat is fixedly butted with the flange plate.

The utility model discloses a hoist mechanism realizes the lift of heavy anchor clamps, holds cylindrical thin casing product tightly through heavy anchor clamps centre gripping, and there is the arc grip block base bottom of heavy anchor clamps, at the clamping jaw that a pair of shape of bilateral symmetry connection of arc grip block matches, and the upper end of two clamping jaws articulates respectively has power device, makes the arc grip block through the slip track as the clamping jaw, can realize the centre gripping through the push-and-pull of two power device to the clamping jaw and loosen the operation of product. The two clamping jaws can slide along the arc-shaped clamping plate at the bottom of the base, so that the clamping jaws can almost slide to the maximum coating clamping position along the outer wall of the cylindrical thin shell, and the cylindrical thin shell is lifted and transported safely and stably. The clamping jaws can slide along the outer wall of the cylindrical thin shell, so that the clamp can clamp and hold the cylindrical thin shell under the condition of a small space gap. The utility model discloses a hoist mechanism passes through the setting of guide cylinder, makes whole hoist mechanism form to the rigid mechanism that can stabilize the lift, can guarantee to lift by crane the safety and stability who promotes the in-process, is fixed in this device and can realize automatically transporting cylindrical thin casing to appointed place on the conventional lifting device such as driving a vehicle or loop wheel machine.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention.

3 fig. 32 3 is 3 a 3 schematic 3 view 3 a 3- 3 a 3 in 3 fig. 31 3. 3

Fig. 3 is an enlarged structural view of the heavy clamp of fig. 1.

Fig. 4 is an enlarged structural view of the heavy clamp of fig. 2.

Fig. 5 is an enlarged view of C-C in fig. 4.

Fig. 6 is a schematic three-dimensional structure diagram of the radial connecting plate in fig. 4.

Fig. 7 is a schematic three-dimensional structure of the axial connection plate in fig. 4.

Figure 8 is a schematic three-dimensional view of the jaw of figure 4.

Fig. 9 is a schematic three-dimensional structure of the base in fig. 4.

Fig. 10 is a schematic three-dimensional structure view of the heavy clamp 1 of fig. 4.

Fig. 11 is a schematic three-dimensional structure of the lifting mechanism of fig. 1.

Detailed Description

As can be seen from fig. 1 to 11, the automatic lifting device suitable for transferring cylindrical thin shells disclosed in the present embodiment includes a heavy fixture 1, a lifting mechanism 2, and a connecting seat 3 therebetween.

The heavy clamp 1 mainly comprises a base 11, a clamping jaw 12 and an oil cylinder 13. The base 11 is a rectangular frame type structure, the clamping jaws 12 are arc-shaped plate holding jaws, the pair of clamping jaws 12 are symmetrically connected to the bottom of the base 11 relative to the central plane of the length direction of the base 11, the two oil cylinders 13 are obliquely arranged, the cylinder body ends of the two oil cylinders are hinged to the base 11, the piston rod ends of the two oil cylinders are respectively hinged to the clamping jaws 12, the telescopic piston rods of the oil cylinders 13 drive the clamping jaws to slide along the sliding rails at the bottom of the base 1, and the operation of clamping and loosening products can be achieved.

As can be seen in connection with fig. 1 to 11, the base 11 comprises a radial web 111, an axial web 112, a top shroud 113 and stiffening struts 114.

The two radial connecting plates 111 are symmetrically arranged in front and back, the two axial connecting plates 112 are symmetrically connected to the bottoms of the two ends of the radial connecting plates 111 in left and right directions, the front side and the back side of the top coaming 113 are respectively connected with the two radial connecting plates 111, and the left side and the right side of the top coaming are respectively connected with the tops of the left end and the right end of the radial connecting plates 111.

Radial connecting plate 111 includes rectangular plate 1111 and arc grip block 1112, and vertical arrangement is followed to rectangular plate 1111, and its lower base is about its length direction central plane to the last concave arc wall of symmetry, and the groove face of concave arc wall is connected on the arc grip block laminating, and the inboard of arc grip block 1112 stretches out outside rectangular plate 1111's inboard, and the both ends of stretching out the section still symmetry are provided with spacing boss 11121.

The axial both ends symmetry of clamping jaw 12 is provided with and reduces thin section 121, and the upside of clamping jaw 12 has along its axial U type groove, and the both ends in U type groove are provided with the boss 122 that matches with spacing boss. The intrados of the thinned section is a contoured surface of the upper surface of the arcuate clamping plate 1112.

An elastic buffer plate 123 is attached to the inner surface of the jaw 12. Tetrafluoroethylene material or a plate body with a friction coefficient smaller than that of the tetrafluoroethylene material is additionally arranged on the outer surface of the elastic buffer plate 123, so that the thermal-protection coating on the surface of the product is prevented from being damaged due to overlarge shear stress when the product is clamped by the clamping jaw.

The inner surface of the thinned section of the clamping jaw 12 is fit with the outer surface of the extended section of the arc-shaped clamping plate 1112 at the bottom of the radial connecting plate 111. When the boss 122 on the upper side of the clamping jaw contacts the limiting bosses 11121 at the two ends of the arc-shaped clamping plate 1112, the clamping jaw 12 is in a lower limiting position. The end limiting boss 11121 of the arc-shaped clamping plate 1112 can prevent the clamping jaw 12 from derailing when sliding and can play a role in bearing weight.

In order to ensure better stability in the product lifting process, when the clamping jaws are positioned at the lower limit position, the central angle between the lower sides of the two clamping jaws and the clamping circle center is smaller than 90 degrees.

The inner surface of the axial connecting plate 112 is a contour surface of the outer surface of the clamping jaw 12, and the axial connecting plate 112 and the radial connecting plate 111 form a section of sliding groove of the clamping jaw 12 after being connected.

The middle parts of the U-shaped grooves on the upper sides of the clamping jaws on the two sides in the length direction are respectively provided with a pair of ear plates EB, and the ear plates on the two clamping jaws are symmetrically arranged on the central plane of the clamping jaw 12 in the length direction.

The top bounding wall 113 of base 11 includes two inverted V-shaped plates 1131 and connects two types of board 1132 between the two inverted V-shaped plates, and the top of the inverted V-shaped plate is the horizontal transition limit, and two inverted V-shaped plates connect in the top at two radial connecting plate 111 both ends, and the roof of several types of plates is connected with the topside parallel and level of the inverted V-shaped plate, and the outer edge of two horizontal side plates is connected with the last edge parallel and level of radial connecting plate 111.

The middle parts of the U-shaped grooves on the upper sides of the two clamping jaws 12 are respectively provided with a pair of ear plates EB, the two pairs of ear plates are symmetrically arranged about the central plane of the clamping jaws in the length direction, two pairs of ear plates EB are arranged on two sides of the central plane of the top plate of the inverted V-shaped plate 1132 in the length direction, and the transverse positions of the two pairs of ear plates EB correspond to the positions of the ear plates on the two clamping jaws 12 respectively.

The cylinder body ends of the two oil cylinders 13 are hinged to lug plates on the top enclosing plate through pin shafts respectively, and the piston rod ends are hinged to lug plates in the middle of the U-shaped groove on the upper side of the clamping jaw 12 through the pin shafts respectively. A piston rod stroke groove 1121 is formed at a position corresponding to the cylinder piston rod inside the two axial connecting plates 112.

Reinforcing support rods 114 are symmetrically connected to two ends of the top between the two radial connecting plates 111, and the reinforcing support rods 114 are respectively located on the outer sides of the piston rods of the corresponding side oil cylinders 13.

When the heavy clamp of this embodiment is assembled, the arc-shaped holding plate 1112 at the bottom of the base 11 and the two clamping jaws 12 symmetrically connected to the bottom of the base 11 form a circumferentially retractable holding structure.

The lifting mechanism 2 includes a guide cylinder 21 and a multistage lift cylinder 22.

The guide cylinder 21 comprises a plurality of layers of cylinder bodies 211 which are concentrically sleeved and can slide relatively, and a lining plate 212 made of non-metal materials is arranged between the adjacent cylinder bodies.

The cross section of the cylinder body 211 in this embodiment is square, and lining plates are attached to the inner walls of the other layers of cylinder bodies except for the innermost cylinder body. After being sleeved, the barrels can slide relatively and stably, so that the matching size of the barrels needs to be well held.

The bottom of the innermost barrel is symmetrically provided with a pair of ear plates about the axial center plane, the two ear plates are connected with a pin shaft, and the lower end of the innermost barrel is provided with a circular flange plate.

The multistage lift cylinder 22 is vertically arranged at the central position of the innermost cylinder of the guide cylinder with the cylinder body end upwards, the base plate at the upper end of the cylinder body is connected to the upper end of the outermost cylinder, and the lowermost end of the piston rod is hinged to the pin shaft between the lug plates at the bottom of the innermost cylinder.

The number of stages of the multi-stage lifting oil cylinder 22 is the same as the number of layers of the guide cylinder bodies, and the relative sliding distance between the layers of the cylinder bodies is matched with the stroke of each stage of the piston rod of the multi-stage lifting oil cylinder, so that each layer of the cylinder bodies can guide the lifting of each stage of the piston rod, and the stability of the whole lifting process of the multi-stage lifting oil cylinder is ensured.

The connecting seat 3 is an I-shaped seat, the lower end of the connecting seat is connected to horizontal plates on two sides of a n-shaped plate of the enclosing plate at the top of the base, and the upper end of the connecting seat is butted with a flange plate at the lower end of the innermost barrel of the guide cylinder.

After the lifting mechanism and the heavy fixture are assembled, the axial center line of the multi-stage lifting oil cylinder is collinear with the vertical center line of the heavy fixture.

The setting of welt not only can guarantee stable direction, can also avoid the wearing and tearing between the barrel.

The concrete application of the device is described below by taking a crane as an example of the hoisting equipment.

The base plate at the upper end of the multi-stage lifting oil cylinder of the device is fixed on a beam of a traveling crane, and the installation quantity of the device is determined according to the weight of a cylindrical thin shell product to be transported.

When the device is installed on a travelling crane, piston rods of the multi-stage lifting oil cylinder and the push-pull oil cylinder are in a retraction state, and the lowest point of the clamping jaw is above the horizontal maximum diameter cross section of the circumference where the clamping jaw is located.

The specific transfer process of the product is as follows:

the travelling crane beam moves to the position right above a product to be transported, so that the clamping circle centers of the two clamping jaws are positioned on the axial central plane of the corresponding vertical plane of the product;

a piston rod of the multi-stage lifting oil cylinder is pushed out step by step, so that the heavy clamp moves downwards until the lower sides of the two clamping jaws are 10-15mm away from the outer surface of a product to be clamped;

a piston rod of the push-pull oil cylinder is pushed out, the clamping jaw slides downwards under the action of the piston rod until a boss on the upper side of the clamping jaw is in contact with a limiting boss at the bottom of the base to be limited, and at the moment, the arc-shaped clamping plate and the clamping jaw wrap and hold the cylindrical thin shell tightly;

a piston rod of a lifting oil cylinder of the lifting mechanism retracts step by step, so that the heavy clamp clamps the cylindrical thin shell to rise to a specified height;

the crane beam moves to transport the product to a designated place.

The utility model discloses an arc grip block that base bottom can be followed to two clamping jaws slides, makes the clamping jaw can paste the outer wall of the thin cylindrical casing and slide to the biggest cladding clamping position to transport the thin cylindrical casing and provide the assurance for lifting by crane of safety and stability. The clamping jaws can slide along the outer wall of the cylindrical thin shell, so that the clamp can clamp and hold the cylindrical thin shell under the condition of a small space gap. The guide cylinder of the lifting mechanism can ensure the safety and stability of the lifting process of the multi-stage lifting oil cylinder. Therefore, the device can realize stable hoisting of the large cylindrical thin shell under the condition of narrow gap space, so that conventional hoisting equipment can transport large cylindrical thin shell products through the device.

Claims (9)

1. The utility model provides an automatic hoisting accessory suitable for cylindrical thin shell is transported which characterized in that: it comprises a heavy clamp and a lifting mechanism connected with the upper end of the heavy clamp;

the heavy clamp comprises a base, clamping jaws and a push-pull power device, wherein an arc-shaped clamping plate is arranged at the bottom of the base, the shape of the clamping jaws is matched with that of an arc-shaped clamping body, a pair of clamping jaws are symmetrically connected to the base about the arc-shaped clamping plate, the push-pull power device is hinged to the upper ends of the two clamping jaws respectively, the arc-shaped clamping plate at the bottom of the base is used as a sliding rail when the clamping jaws move, and the push-pull power device pushes and pulls the clamping jaws to slide along the sliding rail to;

the lifting mechanism is a rigid mechanism and comprises a lifting power device and a guide cylinder, the lower end of the guide cylinder is fixed at the upper end of the base through a connecting seat, the lifting power device and the guide cylinder are concentrically connected in the guide cylinder, and the lifting of the heavy clamp is realized through the lifting power device.

2. The automatic lifting device of claim 1, wherein: the base is rectangular frame type structure, including radial connecting plate, axial connecting plate and top bounding wall, two radial connecting plate front and back symmetrical arrangement, and two axial connecting plate bilateral symmetry connect in the both ends bottom of radial connecting plate, and the top bounding wall is connected two radial connecting plate's top and is whole.

3. The automatic lifting device of claim 2, wherein: the radial connecting plate includes the rectangular plate with the arc grip block, vertical arrangement is followed to the rectangular plate, and its lower base is about the last concave arc wall that its length direction central plane was symmetrical, and the groove face of concave arc wall is connected on the laminating of arc grip block, and the inboard of arc grip block stretches out outside the inboard of rectangular plate, and the both ends of arc grip block still symmetry stretch out the spacing boss.

4. The automatic lifting device of claim 3, wherein: the clamping jaw is characterized in that thinning sections are symmetrically arranged at two axial ends of the clamping jaw, a U-shaped groove is formed in the upper side of the clamping jaw along the axial direction of the clamping jaw, bosses matched with the limiting bosses are arranged at two ends of the U-shaped groove, and the inner arc surface of each thinning section is a profiling surface of the upper surface of the arc-shaped clamping plate; the middle parts of the U-shaped grooves on the upper sides of the two clamping jaws are respectively provided with a pair of ear plates, and the two pairs of ear plates are symmetrically arranged about the central plane of the clamping jaws in the length direction.

5. The automatic lifting device of claim 4, wherein: the inner surface of the axial connecting plate is provided with a profiling surface on the outer surface of the clamping jaw, and the axial connecting plate is connected with the radial connecting plate to form a section of sliding groove of the clamping jaw.

6. The automatic lifting device of claim 4, wherein: the top enclosing plate comprises two inverted V-shaped plates and a multi-shaped plate connected between the two inverted V-shaped plates, the top of each inverted V-shaped plate is a horizontal transition edge, the two inverted V-shaped plates are connected to the top of two ends of the two radial connecting plates, the top plates of the multi-shaped plates are connected with the top edges of the inverted V-shaped plates in a flush manner, and the outer edges of the two horizontal side plates are connected with the upper edges of the radial connecting plates in a flush manner; two pairs of lug plates are arranged on two sides of the length direction central plane of the top plate of the n-shaped plate, and the transverse positions of the two pairs of lug plates correspond to the lug plates on the two clamping jaws respectively.

7. The automatic lifting device of claim 6, wherein: the push-pull power device is an oil cylinder, the end of the cylinder body of the push-pull power device is hinged with an ear plate on the top enclosing plate through a pin shaft, and the end of a piston rod is hinged with the ear plate in the middle of the U-shaped groove on the upper side of the clamping jaw through a pin shaft; and two ends of the top between the two radial connecting plates are symmetrically connected with reinforcing support rods, and the reinforcing support rods are respectively positioned on the outer sides of the piston rods of the oil cylinders on the corresponding sides.

8. The automatic lifting device of claim 7, wherein: promote power device and be multistage flexible hydro-cylinder, but the guide cylinder includes the concentric suit of multilayer, relative slip's barrel, is provided with non-metallic material's welt between the adjacent barrel, and the bottom of inlayer barrel is provided with a pair of otic placode about its axial direction central plane symmetry, and the piston rod head of multistage flexible hydro-cylinder is articulated with the round pin axle that two otic placodes are connected, the bed plate of cylinder body upper end is connected with the outermost barrel upper end of guide cylinder.

9. The automatic lifting device of claim 8, wherein: the number of layers of the cylinder body of the guide cylinder is the same as the number of stages of the piston rod of the lifting power device, the lower end of the innermost cylinder body of the guide cylinder is provided with a flange plate, the lower end of the connecting seat is connected to the n-shaped plate of the enclosing plate of the base, and the upper end of the connecting seat is fixedly butted with the flange plate.

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