CN117383404A - Vertical roll adjusting type lifting device - Google Patents

Abstract

The application relates to the field of steel coil carrying and discloses a vertical coil adjusting type lifting device, which comprises a cross lifting support frame, a pair of lifting support legs hinged to the lower parts of the lifting support frame, an intermediate support mechanism connected between the middle parts of the pair of lifting support legs and an opening and closing driving mechanism for driving the intermediate support mechanism; the lifting support frame is connected with the crane; the middle supporting mechanisms are used for driving a pair of middle supporting mechanisms to open and close; the opening and closing driving mechanism is used for driving the middle supporting mechanism; the lifting support legs comprise hanging legs and L-shaped hanging legs connected to the bottoms of the hanging legs; the horizontal parts of the pair of hanging legs are arranged outwards. The situation of side turning of the steel coil cannot occur; the steel coil at any position is conveniently and directly carried; the condition of scratching the steel coil at the lower side can not occur, so that the steel coil is convenient to carry.

Description

Vertical roll adjusting type lifting device

Technical Field

The application relates to the field of steel coil carrying, in particular to a vertical coil adjusting type lifting device.

Background

When the steel coil 100 is carried, as shown in fig. 1, the axis of the steel coil 100 is vertical and placed on a wood frame 101, and the wood frame 101 comprises a pair of square columnar lower wood strips 103 arranged in parallel and a pair of square columnar upper wood strips 102 arranged in parallel; a pair of upper battens 102 are fixed on the upper end surfaces of a pair of lower battens 103 by screws, and the upper battens 102 and the lower battens 103 are mutually perpendicular; steel coil 100 is placed on a pair of upper battens 102; then the steel coil 100 and the wood frame 101 are connected through steel belts; during carrying, the fork of the forklift is inserted into the gap between the pair of lower battens 103, so that the wooden frame 101 and the steel coil 100 on the wooden frame are driven to be transferred together.

In the above-mentioned manner of transporting the steel coil, the gravity center of the steel coil 100 is high, so that there is a possibility of rollover; when the steel coil is stacked in stock, the fork truck needs to remove the outer steel coil before the steel coil is conveyed to the target steel coil; in addition, the fork of the forklift has a certain inclination angle, and when the steel coil is stacked up and down and the fork of the forklift leaves the wood frame 101, the steel coil on the lower side is easily scratched.

Disclosure of Invention

In order to solve the technical problem existing in the forklift transportation process, the application provides a vertical roll adjusting type lifting device.

The application provides a stand and roll up adjusting formula hoisting accessory adopts following technical scheme:

a vertical roll adjusting type lifting device comprises a cross-shaped lifting support frame, a pair of lifting support legs hinged to the lower portion of the lifting support frame, a middle support mechanism connected between the middle portions of the pair of lifting support legs and an opening and closing driving mechanism for driving the middle support mechanism; the lifting support frame is connected with the crane; the middle supporting mechanisms are used for driving a pair of middle supporting mechanisms to open and close; the opening and closing driving mechanism is used for driving the middle supporting mechanism; the lifting support legs comprise hanging legs and L-shaped hanging legs connected to the bottoms of the hanging legs; the horizontal parts of the pair of hanging legs are arranged outwards.

By adopting the technical scheme, the vertical coil adjusting type lifting device is inserted from top to bottom from the center of the steel coil, then the intermediate supporting mechanism is driven by the opening and closing driving mechanism, the intermediate supporting mechanism drives the lower ends of the pair of lifting supporting legs to be away from each other, the horizontal parts of the pair of lifting legs are inserted into the gap between the pair of lower battens, and the vertical coil adjusting type lifting device is driven to ascend along with travelling crane, the horizontal parts of the pair of lifting legs respectively prop against the bottoms of the pair of upper battens in the process, so that the wood frame and the steel coil are driven to ascend together, and the situation of side turning of the steel coil cannot occur in the mode; meanwhile, steel coils at any positions can be conveniently and directly conveyed; in addition, the condition of scratching the steel coil at the lower side can not occur, so that the steel coil is convenient to carry.

Optionally, the intermediate support mechanism includes a pair of intermediate supports and a cylindrical center connection post; one ends of the pair of middle supporting pieces, which are close to each other, are rotationally connected through the central connecting column, and one ends, which are far away from each other, are respectively hinged on the hanging legs at the corresponding sides; one end of the pair of middle supporting pieces, which are close to each other, is lower than one end of the pair of middle supporting pieces, which are far away from each other; the length of the middle supporting piece is adjustable; the opening and closing driving mechanism is used for lifting the center connecting column.

Through adopting above-mentioned technical scheme, switching actuating mechanism drives central spliced pole and rises, thereby this in-process, and thereby the articulated joint of a pair of intermediate strut member and a pair of hanging leg is kept away from each other makes the lower extreme of a pair of hanging supporting legs keep away from each other, because intermediate strut member's length is adjustable, under the condition that the displacement volume that the central spliced pole risen is unchangeable like this, and finally the angle of expansion of a pair of hanging leg is different, can adapt to the coil of strip of different internal diameters like this.

Optionally, the middle supporting piece comprises an outer supporting plate, an inner supporting frame with a U-shaped opening downwards and a connecting telescopic screw; one end of the connecting telescopic screw rod is in threaded connection with the outer supporting plate, and the other end of the connecting telescopic screw rod is in rotary connection with the inner supporting frame; a regular hexagonal rotary driving block is fixed on the connecting telescopic screw rod; a pair of vertical parts of one inner supporting frame are positioned between a pair of vertical parts of the other inner supporting frame, and the lower ends of the four vertical parts are respectively sleeved on the central connecting column; one end of the outer supporting plate far away from the inner supporting frame is rotatably connected to the hanging leg on the corresponding side.

Through adopting above-mentioned technical scheme, thereby rotate the drive piece through the drive and rotate and drive and connect telescopic screw and rotate, change the interval between outer backup pad and the inner support frame like this to accomplish intermediate support spare length adjustment, simple structure like this, adjust conveniently.

Optionally, the opening and closing driving mechanism comprises a lifting center column rotatably connected to the middle part of the lifting support frame; the cylindrical surface of the lifting center column is provided with a radially arranged operating rod and a radially arranged driving plate; an obtuse angle is formed between the operating rod and the driving plate; and a connecting piece is connected between one end, far away from the lifting center column, of the driving plate and the center connecting column.

Through adopting above-mentioned technical scheme, through pushing down the lifting center post, the one end that the lifting center post was kept away from to the drive plate like this moves up, drives the central articulated shaft through the connecting piece like this and moves up, and the connecting piece moves up conveniently like this.

Optionally, the length of the driving plate along the radial direction is adjustable.

Through adopting above-mentioned technical scheme, through changing the radial length of drive plate along, can change the sensitivity of connecting piece upward movement, adapt to the quick centre gripping of the coil of strip of different internal diameters.

Optionally, the opening and closing driving mechanism further comprises an opening and holding assembly; the expansion maintaining assembly is used for limiting the rotation of the lifting center column and keeping the lower ends of the pair of lifting supporting feet in a far away state.

Through adopting above-mentioned technical scheme, after the lower extreme of a pair of supporting legs that lifts by crane kept away from each other, open and keep the subassembly and make lifting center post counter-rotation to make the lower extreme of a pair of supporting legs that lifts by crane keep away from each other, in the handling like this, be favorable to improving the stability of coil of strip when carrying.

Optionally, an inner supporting component is rotatably connected to the vertical surface of the hanging leg; the inner abutting assembly comprises an abutting frame and a pair of cylindrical abutting columns fixed at one end of the abutting frame far away from the hanging leg; the length of the abutting frame is adjustable; when the steel coil is lifted, the rotation central axes of the abutting columns and the steel coil are parallel, and four abutting columns abut against the inner cylindrical surface of the steel coil.

By adopting the technical scheme, in the carrying process, a pair of leaning columns lean against the inner cylindrical surface of the steel coil, so that the relative horizontal movement of the steel coil and the vertical coil adjusting type lifting device is reduced, and the stability of the steel coil in carrying is improved; meanwhile, the length of the propping frame is adjustable, so that the steel coil supporting frame can adapt to steel coils with different inner diameters.

Optionally, the hanging leg is arranged at the bottom of the hanging leg in a telescopic manner, and the telescopic direction of the hanging leg is parallel to the length direction of the hanging leg; the hanging legs are provided with telescopic limiting pieces; the telescopic limiting piece is used for limiting the hanging foot to stretch.

Through adopting above-mentioned technical scheme, through flexible hanging leg change lifting by crane the whole length of supporting legs to use the coil of strip of different axial heights, improve its work adaptability.

Optionally, an angle between the vertical portion and the horizontal portion of the hanger foot is less than ninety degrees.

Through adopting above-mentioned technical scheme, because the angle between the vertical portion and the horizontal portion of hanging the foot is less than ninety degrees, hang the horizontal portion of foot from inside to outside slope upward setting like this throughout, in lifting by crane the in-process, coil of strip and wood frame's dead weight produce the open effort of a pair of support foot that lifts by crane of drive, can be safer, stable when lifting by crane.

Optionally, a foot hanging plate is fixed on the upper end surface of the horizontal part of the foot hanging plate; the hanging foot plate is parallel to the horizontal part of the hanging foot where the hanging foot plate is located.

By adopting the technical scheme, the contact area between the lifting foot plate and the steel coil is increased, so that the steel coil is more stable and safer when moving.

In summary, the beneficial effects of the application are:

1. the situation of side turning of the steel coil can not occur; the steel coil at any position is conveniently and directly carried; the condition of scratching the steel coil at the lower side can not occur, so that the steel coil is convenient to carry.

2. The steel coil structure is suitable for steel coils with different inner diameters and different axial lengths, and the working range is wider.

Drawings

Fig. 1 is a schematic diagram of a conventional steel coil handling structure.

Fig. 2 is a schematic cross-sectional view of the first embodiment of the present application.

Fig. 3 is a partially enlarged structural schematic diagram of fig. 2 a of the present application.

Fig. 4 is a schematic front view in partial cross section of the opening/closing drive mechanism 80 of the present application.

Fig. 5 is a schematic sectional view of the intermediate support mechanism 60 in fig. 2 of the present application.

Fig. 6 is a schematic cross-sectional view of the inner abutment assembly 70 of fig. 2 of the present application.

Fig. 7 is a schematic top view of the inner abutment assembly 70 of the present application.

Fig. 8 is a partially enlarged structural schematic diagram of B in fig. 2 of the present application.

Fig. 9 is a schematic structural view of a cross section of a connection plate 87 of the second embodiment of the present application.

Reference numerals illustrate:

10. lifting a supporting frame;

20. lifting supporting feet;

30. hanging legs; 300. the rotation avoidance groove; 301. an external connection threaded hole; 31. a guide frame; 311. guiding the upper supporting plate; 312. guiding the lower support plate; 32. hanging foot limit bolts;

40. hanging feet; 41. hanging leg outer frame; 410. translating the guide slot; 411. an internal threaded hole; 42. an inner support; 421. an inner connection plate; 422. an inner support plate; 43. a horizontal connecting plate;

50. foot hanging plates;

60. an intermediate support mechanism; 61. an intermediate support; 611. an outer support plate; 612. connecting a telescopic screw rod; 6121. rotating the driving block; 613. an inner support; 62. a central connection column;

70. an inner abutment assembly; 71. abutting against the inner support seat; 710. a telescopic guide slot; 72. abutting against the outer support seat; 721. a telescopic guide rod; 722. a connecting rod; 73. an adjusting bolt; 74. abutting the column;

80. an opening/closing driving mechanism; 81. lifting the central column; 82. an operation lever; 83. a driving plate; 84. driving the inner plate; 840. radial expansion grooves; 841. an upper moving groove; 85. driving the outer plate; 851. a telescopic connecting block; 852. a steel wire connecting plate; 8520. perforating the steel wire; 8521. a steel wire limit bolt; 853. a telescopic limit bolt; 86. a steel wire; 87. a connecting plate; 871. a first connection plate; 872. a second connecting plate; 873. a screw assembly; 8731. a first screw; 8732. the screw connection driving block; 8733. a second screw;

90. an opening holding assembly; 91. a ratchet wheel; 92. a core beam; 93. a pull rope guide block; 94. unlocking the pull rope; 95. a horizontal guide sleeve; 96. a limit moving rod; 97. a pawl; 98. a pressure spring;

100. a steel coil; 101. a wood frame; 102. applying wood strips; 103. and (5) blanking wood strips.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-9.

Embodiment one: disclosed is a vertical roll adjusting type lifting device, referring to fig. 2, comprising a cross-shaped lifting support frame 10, a pair of lifting support legs 20 hinged at the lower part of the lifting support frame 10, an intermediate support mechanism 60 connected between the middle parts of the pair of lifting support legs 20, and an opening and closing driving mechanism 80 for driving the intermediate support mechanism 60; the upper part of the lifting support frame 10 is formed with a hanging hole matched with a hanger of a crane; the intermediate support mechanisms 60 are used for driving a pair of intermediate support mechanisms 60 to open and close; the opening and closing driving mechanism 80 is used for driving the intermediate support mechanism 60; the lifting support leg 20 comprises a hanging leg 30, an L-shaped hanging leg 40 which is arranged at the bottom of the hanging leg 30 in a telescopic manner along the length direction of the hanging leg 30, and a telescopic limiting piece for limiting the telescopic manner of the hanging leg 40; the horizontal portions of the pair of hanging legs 40 are arranged outwards; an inner abutment assembly 70 is rotatably connected to the leg 30.

Referring to fig. 2, the cross section of the hanging leg 30 is in a U shape and the openings of a pair of hanging legs 30 are disposed opposite to each other; the intermediate support mechanism 60 includes a pair of intermediate supports 61 and a cylindrical center connection post 62; one end of the pair of intermediate supports 61, which are close to each other, are rotatably connected by the central connecting post 62, and one end, which are far away from each other, are respectively hinged to the openings of the hanging legs 30 on the corresponding sides; one end of the pair of intermediate supports 61 close to each other is lower than one end far from each other; the length of the intermediate support 61 is adjustable; the opening and closing driving mechanism 80 is used to lift the center link post 62.

Referring to fig. 5, the intermediate support 61 includes an outer support plate 611, an inner support frame 613 in the shape of a U with an opening facing downward, and a connecting jack screw 612; one end of the connecting telescopic screw 612 is in threaded connection with the outer supporting plate 611, and the other end is in rotary connection with the inner supporting frame 613; a regular hexagonal rotary driving block 6121 is fixed on the connecting telescopic screw 612; a pair of vertical parts of one inner supporting frame 613 are positioned between a pair of vertical parts of the other inner supporting frame 613 and the lower ends of the four vertical parts are respectively sleeved on the central connecting column 62; the end of the outer support plate 611 remote from the inner support frame 613 is rotatably coupled to the leg 30 of the corresponding side.

Referring to fig. 4, the opening and closing driving mechanism 80 includes a lifting center post 81 rotatably connected to the middle of the lifting support frame 10; the cylindrical surface of the lifting center column 81 is provided with a radially arranged operating rod 82 and a radially arranged driving plate 83 with adjustable length; an obtuse angle is formed between the operating lever 82 and the driving plate 83; a steel wire 86 is connected between the end of the driving plate 83 away from the lifting center column 81 and the center connecting column 62; the steel wire 86 is in tension.

Referring to fig. 4, the driving plate 83 includes a driving inner plate 84 and a driving outer plate 85 formed on a cylindrical surface of the lifting center column 81; a radial expansion groove 840 is formed on the end surface of the driving inner plate 84 away from the lifting center column 81; an upper moving groove 841 vertically penetrating is formed on the upper side wall of the radial expansion groove 840; the driving outer plate 85 includes a telescopic connection block 851 fitted with a radial telescopic groove 840 and a wire connection plate 852 formed at one end of the telescopic connection block 851 remote from the lifting center column 81; a telescopic limit bolt 853 is vertically and spirally connected to the telescopic connecting block 851; the screw rod of the telescopic limit bolt 853 is slidably arranged in the upper moving groove 841; a wire perforation 8520 through which the wire passes is vertically formed on the wire connection plate 852; the end surface of the steel wire connecting plate 852 far away from the telescopic connecting block 851 is vertically and spirally connected with a steel wire limiting bolt 8521; the upper end of the wire 86 passes through the wire perforation 8520 and the inner end of the wire stop bolt 8521 is sleeved on the center connection post 62 against the wire 86 passing through the wire perforation 8520.

To prevent reverse rotation of the lifting center post 81 during lifting, referring to fig. 2, the lifting support frame 10 is provided with a splayed holding assembly 90; referring to fig. 3, the splayed holding assembly 90 includes a ratchet 91 coaxially fixed to the lifting center post 81, a limit moving lever 96 horizontally elastically moving provided on the lifting support frame 10, and a pawl 97 formed at one end of the limit moving lever 96 near the ratchet 91; when the pawl 97 approaches the ratchet 91, the pawl 97 catches the ratchet 91; when the pawl 97 catches the ratchet 91, the operating lever 82 can only be depressed and cannot be lifted.

Referring to fig. 3, a horizontal guide sleeve 95 is formed on the lifting support frame 10; the limit moving rod 96 horizontally passes through the horizontal guide sleeve 95; the limit moving rod 96 is sleeved with a pressure spring 98; one end of the pressure spring 98 abuts against the horizontal guide sleeve 95, and the other end abuts against the pawl 97; in order to conveniently drive the limit moving rod 96, one end of the limit moving rod 96, which is far away from the pawl 97, is connected with an unlocking pull rope 94; in order to avoid the unlocking pull rope 94 from being disturbed, a cylindrical central guide post 92 and a pull rope guide block 93 are fixed on the lifting support frame 10; a rope guide groove is formed at one end of the rope guide block 93, which is close to the end surface of the lifting support frame 10 and is close to the central guide post 92; the unlocking pull cord 94 bypasses the core beam 92 and passes through the pull cord guide slot.

Referring to fig. 2, 6 and 7, a rotation avoidance groove 300 is formed at an upper portion of the hanging leg 30 to be penetrated; the inner abutment assembly 70 includes an adjustable length abutment bracket and a pair of cylindrical abutment posts 74 secured to the end of the abutment bracket remote from the hanger leg 30.

Referring to fig. 2, 6 and 7, the abutment frame includes an abutment inner support seat 71, an abutment outer support seat 72 and an adjustment bolt 73; one end abutting against the inner support seat 71 passes through the rotation avoidance groove 300 of the corresponding side and is rotatably connected to the hanging leg 30; a pair of telescopic guide grooves 710 are formed on the end surface of the inner supporting seat 71 far away from the hanging leg 30; the end surface of the propping outer supporting seat 72 close to the propping inner supporting seat 71 is formed with a telescopic guide rod 721 matched with the telescopic guide groove 710; the adjusting bolt 73 passes through and is rotatably connected to the abutment outer support seat 72 and the threaded connection of the adjusting bolt 73 is made to the abutment inner support seat 71; the adjusting bolt 73 and the telescopic guide 721 are both axially arranged in parallel; a pair of connecting rods 722 are formed at one end of the propping outer supporting seat 72 far away from the propping inner supporting seat 71; the abutment posts 74 are in one-to-one correspondence with the connecting rods 722 and the abutment posts 74 are fixed at the end of the connecting rods 722 remote from the abutment outer support seats 72; the abutment outer support seat 72 is located between a pair of abutment posts 74; when the steel coil is lifted, the supporting columns 74 and the rotating central shafts of the steel coil are arranged in the vertical direction, and the four supporting columns 74 simultaneously support the inner cylindrical surface of the steel coil, so that the steel coil 100 cannot horizontally move relative to the pair of lifting supporting feet 20 on the horizontal plane due to the action of the four supporting columns 74, and the carrying stability is improved.

Referring to fig. 2 and 8, the suspending foot 40 is telescopically disposed at the bottom of the suspending leg 30 and its telescopic direction is parallel to the length direction of the suspending leg 30; the hanging legs 30 are provided with telescopic limiting pieces; the telescopic limiting member is used for limiting the telescopic movement of the hanging leg 40.

Referring to fig. 2 and 8, the hanger 40 includes an L-shaped hanger outer frame 41 and an L-shaped inner support frame 42 formed in an opening of the hanger outer frame 41; the inner supporting frame 42 comprises an inner connecting plate 421 fixed in the opening of the hanging leg outer frame 41 and a plurality of L-shaped inner supporting plates 422; the upper end of the inner support plate 422 is fixed to the lower end surface of the inner connection plate 421; the inner side end of the vertical part of the inner support plate 422 is fixedly connected with the inner side wall of the opening of the hanging foot outer frame 41; the upper and lower openings of the middle part of the horizontal part of the hanging leg outer frame 41 are arranged; a horizontal connection plate 43 is arranged in the opening of the horizontal part of the hanging leg outer frame 41; the bottom of the horizontal connection plate 43 is fixedly connected with the horizontal parts of all the inner support plates 422; a foot hanging plate 50 is formed on the upper end surface of the horizontal part of the foot hanging outer frame 41; the hanging foot plate 50 is parallel to the horizontal part of the hanging foot outer frame 41; the bottom of the hanging foot plate 50 is fixedly connected with the upper end surface of the horizontal connecting plate 43; the angle between the vertical and horizontal portions of the hanger outer frame 41 is less than ninety degrees.

Referring to fig. 2 and 8, a guide frame 31 is provided in an opening at a lower portion of the suspending leg 30; the guide frame 31 includes a guide upper support plate 311 vertically fixed in an opening of the suspending leg 30 and a guide lower support plate 312 vertically fixed on a lower end surface of the guide upper support plate 311; the cross section of the hanging leg outer frame 41 is U-shaped; the hanging leg outer frame 41 is inserted into the opening of the hanging leg 30, and three outer vertical surfaces of the hanging leg outer frame 41 are respectively contacted with three side walls of the opening of the hanging leg 30 one by one; a pair of opposite side walls of the hanger outer frame 41 are formed at upper portions thereof with rectangular groove-shaped translation guide grooves 410 which are engaged with the guide lower support plate 312; the hanger outer frame 41 is movably disposed in the opening of the hanger leg 30 and both ends of the guide lower support plate 312 are vertically inserted into a pair of translation guide grooves 410, respectively.

Referring to fig. 2 and 8, the telescopic stopper includes a hanger leg stopper bolt 32 vertically screwed on the guide lower support plate 312; the side walls of the hanging legs 30 parallel to the guiding lower supporting plate 312 are provided with external connection threaded holes 301 matched with the hanging leg limit bolts 32; the side walls of the outer hanger frame 41 parallel to the lower guide support plate 312 are formed with a plurality of inner connecting threaded holes 411 uniformly distributed along the length direction of the vertical part; the hanging leg limiting bolts 32 sequentially penetrate through and are screwed into one of the inner connecting threaded holes 411 and the outer connecting threaded holes 301; because the three outer vertical surfaces of the hanger outer frame 41 are respectively in one-to-one contact with the three side walls of the opening of the hanger leg 30, the two ends of the guiding lower support plate 312 are respectively vertically inserted into the pair of translation guide grooves 410, so that the hanger 40 and the hanger leg 30 are stably connected, and meanwhile, the strength of the connection of the hanger 40 and the hanger leg is higher by being matched with the hanger limiting bolt 32.

The working principle of the first embodiment is as follows:

in the initial state, the lower ends of the pair of lifting supporting feet are mutually close, then the pair of lifting supporting feet are inserted from the center of the steel coil from top to bottom, and then the operating rod 82 is pressed down, so that one end of the driving plate 83 far away from the lifting center column 81 is driven to move upwards, the center connecting column 62 is driven to move upwards through the steel wire 86, the hinging points of the pair of middle supporting pieces 61 and the pair of lifting legs 30 are mutually far away, so that the lower ends of the pair of lifting supporting feet are mutually far away, the pair of lifting foot plates 50 are inserted into a gap between the pair of lower battens 103, and meanwhile, the four abutting columns 74 simultaneously abut against the inner cylindrical surface of the steel coil; along with the lifting of the vertical coil adjusting type lifting device, in the process, the pair of lifting foot plates 50 respectively support against the bottoms of the pair of upper battens 102, so that the wooden frame 101 and the steel coil 100 are driven to lift and carry together.

Embodiment two: referring to fig. 9, the second embodiment differs from the first embodiment in that: a connection plate 87 is used instead of the steel wire 86; one end of the connecting plate 87 is hinged to the driving outer plate 85, and the other end is rotatably connected to the center connecting column 62; the length of the connection plate 87 is adjustable.

The connection plate 87 includes a first connection plate 871, a second connection plate 872, and a screw assembly 873 for connecting the first connection plate 871 and the second connection plate 872; one end of the first connecting plate 871, which is far away from the second connecting plate 872, is hinged on the driving outer plate 85; one end of the second connecting plate 872, which is far away from the first connecting plate 871, is rotatably connected to the central connecting post 62; the length direction of both the first connection plate 871 and the second connection plate 872 is the same; the screw assembly 873 includes a first screw 8731, a second screw 8733, and a screw driving block 8732 of a regular hexagonal shape fixed between the first screw 8731 and the second screw 8733; the rotation central axes of the first screw 8731, the screw driving block 8732 and the second screw 8733 are collinear; the external threads of the first screw 8731 and the second screw 8733 are oppositely threaded; the first screw 8731 is screwed to the first connection plate 871 and the axial direction of the first screw 8731 is the same as the length direction of the first connection plate 871; the second screw 8733 is screwed on the second connection plate 872 and the second screw 8733 is axially the same as the length direction of the second connection plate 872; when the screw driving block 8732 is rotated, the first and second connection plates 871 and 872 are moved away from or toward each other to thereby complete the length adjustment of the connection plate 87.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. An upright roll adjusting type lifting device is characterized in that: comprises a cross-shaped lifting support frame (10), a pair of lifting support feet (20) hinged at the lower part of the lifting support frame (10), an intermediate support mechanism (60) connected between the middle parts of the pair of lifting support feet (20) and an opening and closing driving mechanism (80) for driving the intermediate support mechanism (60); the lifting support frame (10) is connected with the travelling crane; the intermediate supporting mechanisms (60) are used for driving a pair of the intermediate supporting mechanisms (60) to open and close; the opening and closing driving mechanism (80) is used for driving the middle supporting mechanism (60); the lifting support leg (20) comprises a lifting leg (30) and an L-shaped lifting leg (40) connected to the bottom of the lifting leg (30); the horizontal parts of the pair of hanging legs (40) are arranged outwards.

2. A vertical roll adjustment lifting device according to claim 1, characterized in that: the intermediate support mechanism (60) comprises a pair of intermediate supports (61) and a cylindrical central connecting column (62); one ends of the pair of middle supporting pieces (61) close to each other are rotatably connected through the central connecting column (62), and one ends far away from each other are respectively hinged on the hanging legs (30) on the corresponding sides; one end of the pair of intermediate supports (61) close to each other is lower than one end far away from each other; -the intermediate support (61) is of adjustable length; the opening and closing driving mechanism (80) is used for lifting the central connecting column (62).

3. A vertical roll adjustment lifting device according to claim 2, characterized in that: the middle supporting piece (61) comprises an outer supporting plate (611), an inner supporting frame (613) with a U-shaped opening downwards and a connecting telescopic screw rod (612); one end of the connecting telescopic screw rod (612) is in threaded connection with the outer supporting plate (611), and the other end of the connecting telescopic screw rod is in rotary connection with the inner supporting frame (613); a regular hexagonal rotary driving block (6121) is fixed on the connecting telescopic screw rod (612); a pair of vertical parts of one inner supporting frame (613) are positioned between a pair of vertical parts of the other inner supporting frame (613) and the lower ends of the four vertical parts are respectively sleeved on the central connecting column (62); one end of the outer support plate (611) far away from the inner support frame (613) is rotatably connected to the hanging leg (30) at the corresponding side.

4. A vertical roll adjustment lifting device according to claim 2, characterized in that: the opening and closing driving mechanism (80) comprises a lifting center column (81) rotatably connected to the middle part of the lifting support frame (10); the cylindrical surface of the lifting center column (81) is provided with a radially arranged operating rod (82) and a radially arranged driving plate (83); an obtuse angle is formed between the operating rod (82) and the driving plate (83); and a connecting piece is connected between one end, far away from the lifting center column (81), of the driving plate (83) and the center connecting column (62).

5. The vertical roll adjustment type lifting device according to claim 4, wherein: the drive plate (83) is arranged with adjustable length along the radial direction.

6. The vertical roll adjustment type lifting device according to claim 4, wherein: the opening and closing driving mechanism (80) further comprises an opening and holding assembly (90); the splayed holding assembly (90) is used for limiting the rotation of the lifting center column (81) and keeping the lower ends of the pair of lifting supporting feet in a far away state.

7. A vertical roll adjustment lifting device according to claim 2, characterized in that: an inner propping component (70) is rotatably connected to the vertical surface of the hanging leg (30); the inner abutment assembly (70) includes an abutment frame and a pair of cylindrical abutment posts (74) secured to the end of the abutment frame remote from the hanger leg (30); the length of the abutting frame is adjustable; when lifted, the rotation central axes of the abutting columns (74) and the steel coil are parallel, and four abutting columns (74) abut against the inner cylindrical surface of the steel coil.

8. A vertical roll adjustment lifting device according to claim 1 or 7, characterized in that: the hanging legs (40) are arranged at the bottoms of the hanging legs (30) in a telescopic mode, and the telescopic direction of the hanging legs is parallel to the length direction of the hanging legs (30); the hanging legs (30) are provided with telescopic limiting pieces; the telescopic limiting piece is used for limiting the hanging foot (40) to stretch.

9. A vertical roll adjustment lifting device according to claim 1, characterized in that: the angle between the vertical and horizontal portions of the hanger foot (40) is less than ninety degrees.

10. The vertical roll adjustment type lifting device according to claim 9, wherein: a foot hanging plate (50) is fixed on the upper end surface of the horizontal part of the foot hanging plate (40); the hanging foot plate (50) is parallel to the horizontal part of the hanging foot (40) where the hanging foot plate is positioned.