CN117185121A

CN117185121A - Outward expansion type lifting appliance for flange transportation

Info

Publication number: CN117185121A
Application number: CN202311322313.4A
Authority: CN
Inventors: 郑媛
Original assignee: Shanxi Hengyue Forging Co ltd
Current assignee: Shanxi Hengyue Forging Co ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2023-12-08

Abstract

The application relates to a lifting appliance for transporting an external expansion flange, which relates to the technical field of flange lifting appliances, and comprises a lifting rod, wherein one end of the lifting rod is provided with a lifting ring, and the other end of the lifting rod is connected with a grabbing mechanism; the grabbing mechanism comprises a plurality of supporting wedges, the supporting wedges are sequentially arranged at intervals along the circumferential direction of the boom, and one side of the supporting wedges, which faces the boom, is provided with a supporting driving component capable of driving the supporting wedges to move along the direction away from or close to the boom; one side of the supporting wedge block, which faces the lifting ring, is provided with a guide inclined plane, and the guide inclined plane is obliquely arranged along the direction away from the lifting rod and extends towards the direction away from the lifting ring. The grabbing mechanism can be inserted into the lower end of the flange through the arrangement of the supporting wedge blocks, supports the flange in the axial direction of the flange, reduces the possibility that the flange falls down due to jolt in the transportation process, and improves the stability of flange transportation.

Description

Outward expansion type lifting appliance for flange transportation

Technical Field

The application relates to the technical field of flange lifting appliances, in particular to a lifting appliance for transporting an external expansion flange.

Background

A flange, also called flange collar. The flange is a part for connecting the shafts; also for pipe-to-pipe connections; there are also flanges for use in the access ports of the devices for connection between two devices, such as flanges. Or, the flange and the flange are connected with each other to form a group of combined and sealed detachable connection.

The lifting appliance refers to a device for lifting a heavy object. The most commonly used slings for lifting articles are slings, other slings, forks, etc. Is widely applied to the hoisting industry.

At present, a lifting appliance for flange transportation is a lifting appliance special for flange transportation in the flange production process, and the lifting appliance is designed based on the produced flange. The lifting appliance can provide reliable force to help transport the flange, the using method is very simple, the flange is only required to be placed on the lifting appliance, and then the lifting appliance is hung on a hook of a transport vehicle by using a steel wire rope. The use of the lifting appliance can reduce the damage to the flange in the transportation process, and simultaneously can improve the transportation efficiency.

At present, the common hoist for flange transportation mainly comprises a lifting ring, a lifting rod and clamping jaws, wherein the lifting rod is arranged in the vertical direction, the upper end of the lifting rod is connected with the lifting ring, the lower end of the lifting rod is connected with the clamping jaws, and the flange is clamped by the clamping jaws, so that the flange is grabbed.

Aiming at the related technology, the clamping jaw clamps the side wall of the flange, the flange is grabbed by the friction force between the clamping jaw and the flange, but the flange is easy to separate from the clamping jaw under the action of self inertia when jolting and the like are encountered in the transportation process because of the large weight of the flange, so that the flange is easy to fall off, and once the situation occurs, the safety of workers is influenced; on the other hand, the flange is bumped, so that the product quality of the flange is affected.

Disclosure of Invention

The application provides a lifting appliance for transporting an external expansion flange, which aims to increase the stability of the lifting appliance for grabbing the flange, thereby reducing the possibility of the flange falling off in the transportation process.

The application provides a lifting appliance for transporting an external expansion flange, which adopts the following technical scheme: the lifting appliance for outward expansion type flange transportation comprises a lifting rod, wherein one end of the lifting rod is provided with a lifting ring, and the other end of the lifting rod is connected with a grabbing mechanism;

the grabbing mechanism comprises a plurality of supporting wedges, the supporting wedges are sequentially arranged at intervals along the circumferential direction of the suspender, and one side of the supporting wedges, which faces the suspender, is provided with a supporting driving assembly capable of driving the supporting wedges to move along the direction away from or close to the suspender;

the support wedge block is provided with the direction inclined plane towards one side of rings, the direction inclined plane is along keeping away from the direction slope of jib towards keeping away from the direction extension setting of rings.

Through adopting above-mentioned technical scheme, at first, rings, jib and the cooperation setting of snatching the mechanism have constituteed a hoist that can transport the flange.

Secondly, the setting of supporting wedge in the mechanism is snatched, through the direction inclined plane on the supporting wedge, when snatch the mechanism and insert in the flange, can promote the direction motion that the supporting wedge kept away from the jib through supporting drive assembly for among the clearance between flange and the ground is inserted to the direction inclined plane, thereby under the continuous drive of supporting drive assembly, the flange can be under the conflict of direction inclined plane, along the vertical upward movement of direction inclined plane, then a plurality of supporting wedges can support the flange along the axial of flange this moment. Therefore, when jolting occurs, the support wedges can also support the flange at the lower side of the flange, so that the flange is not easy to fall off from the grabbing mechanism.

Optionally, the support driving assembly comprises a driving rod, a first connecting rod, a second connecting rod and a pushing driving source, the length direction of the driving rod is arranged along the axial direction of the suspender, and the support wedge block is connected with the driving rod;

the first connecting rod is rotationally connected with the second connecting rod and the middle part of the driving rod, and the first connecting rod and the second connecting rod are both in sliding connection with the driving rod along the length direction of the driving rod;

the one end that the head rod kept away from the second connecting rod with promote the actuating drive source rotates to be connected, the drive direction of promotion actuating drive source is followed the length direction setting of actuating lever, the second connecting rod keep away from the one end of head rod with the jib rotates to be connected.

Through adopting above-mentioned technical scheme, head rod and second connecting rod rotate to be connected, and the one end that the second connecting rod was kept away from to the head rod and the promotion actuating source interconnect, and the one end that the head rod was kept away from to the second connecting rod and jib interconnect, so when the promotion actuating source moves along vertical direction, then the head rod can move towards the direction of second connecting rod, then the rotation junction of head rod and second connecting rod can move towards the direction of keeping away from the jib this moment.

Therefore, based on the principle, the driving rod is connected with the first connecting rod and the second connecting rod, so that the driving rod can move along the direction away from the suspender, and the requirement of supporting the wedge for remote movement is met; and because the driving rod is in sliding connection with the first connecting rod and the second connecting rod along the vertical direction, the driving function of the first connecting rod and the second connecting rod on the driving rod along the vertical direction can be eliminated, and the normal remote motion of the supportable wedge block is ensured.

Optionally, the grabbing mechanism further comprises a supporting guide post, the supporting guide post is sleeved on the outer side of the hanging rod, a plurality of guide grooves are formed in the outer side wall of the supporting guide post, the length direction of each guide groove is along the axial direction of the hanging rod, and each guide groove penetrates through the side wall of the supporting guide post;

the guide grooves are arranged in one-to-one correspondence with the supporting wedges, the supporting wedges are inserted into the corresponding guide grooves, and the supporting wedges are in sliding connection with the inner walls of the corresponding guide grooves.

Through adopting above-mentioned technical scheme, support the guide post cover and establish in the outside of jib, the guide way is seted up in the jib outside, and support the voussoir grafting at the guide way, so the guide way can carry out spacing and direction to the direction of motion of support the voussoir, ensures to support the voussoir motion stability.

Optionally, the supporting guide post is further provided with a plurality of lifting assemblies, and the lifting assemblies are sequentially arranged at intervals along the circumferential direction of the supporting guide post;

the lifting assembly comprises a lifting groove which is arranged on the outer side wall of the supporting guide post, a clamping block is inserted into the lifting groove, the clamping block is connected with the inner wall of the lifting groove in a sliding way,

and a clamping driving piece capable of driving the clamping block to slide towards or away from the boom is arranged on one side of the clamping block, which faces the boom.

Through adopting above-mentioned technical scheme, the setting of lifting means, owing to support the guide post outside and seted up the lifting groove, sliding grafting in the lifting groove has the clamp block, and still is connected with on the clamp block and can drive the clamp block at the gliding clamp driving piece in the lifting groove.

Therefore, when grabbing mechanism inserts in the flange, can drive the clamping piece roll-off lifting groove through pressing from both sides tight driving piece, then clamping piece can conflict flange inner wall this moment, consequently through the cooperation of a plurality of lifting mechanism, through the frictional force between clamping piece and the flange inner wall, can increase the stability of grabbing the flange.

Optionally, an elastic pad is connected to a side of the clamping block facing away from the boom.

Through adopting above-mentioned technical scheme, the setting of elastic cushion, when pressing from both sides tight piece conflict flange inner wall, the elastic cushion can increase the frictional force of pressing from both sides tight piece and flange inner wall through self elastic deformation to increase the fixed stability of flange.

Optionally, the support guide post is slidably connected with the boom along the axial direction of the boom; the guide way inner wall is provided with the promotion voussoir, it is located to promote the voussoir corresponds support the voussoir orientation one side of rings, it is provided with the promotion inclined plane to promote the voussoir orientation one side of corresponding support the voussoir, promote the inclined plane slope setting just promote the inclined plane and correspond the laminating each other of guide inclined plane, promote the inclined plane with corresponding guide inclined plane sliding connection.

Through adopting above-mentioned technical scheme, promote the setting of voussoir, through promoting inclined plane and direction inclined plane mutually support, when supporting the voussoir along the direction motion of keeping away from the jib, can be through contradicting and promote the inclined plane for support the guide post and move up towards vertical.

Based on the principle, when the grabbing mechanism is inserted into the flange, the inner wall of the flange is fixed through the lifting mechanism, then the supporting wedge block moves, so that the supporting guide column moves upwards, the flange is driven to move upwards, and the supporting wedge block is conveniently inserted into a gap between the flange and the ground.

Optionally, the suspension rod comprises a fixed rod and a movable rod, the fixed rod and the movable rod are coaxially arranged, the fixed rod is rotationally connected with the movable rod, one end of the fixed rod, which is far away from the movable rod, is mutually connected with the suspension ring, and one end of the lower end of the movable rod, which is far away from the fixed rod, is mutually connected with the grabbing mechanism;

a rotation driving component capable of driving the movable rod to rotate is arranged between the fixed rod and the movable rod.

Through adopting above-mentioned technical scheme, the jib includes movable rod and dead lever, and movable rod and dead lever rotate to be connected, so under the effect of rotating drive assembly, the movable rod can rotate in vertical plane, and then after grabbing the flange, can adjust the state of flange for the transport state of flange can satisfy the requirement.

Optionally, the boom is further provided with a positioning mechanism, the positioning mechanism comprises a positioning sleeve, the positioning sleeve is sleeved on the outer side of the boom, and the inner wall of the positioning sleeve and the grabbing mechanism are arranged at intervals;

the positioning sleeve is characterized in that a plurality of positioning driving assemblies are arranged on the inner wall of the positioning sleeve, the positioning driving assemblies are arranged at intervals along the circumferential direction of the positioning sleeve, and the driving direction of the positioning driving assemblies is arranged along the corresponding radial direction of the positioning sleeve.

Through adopting above-mentioned technical scheme, the setting of a plurality of location drive assembly of locating sleeve cooperation, after the locating sleeve pipe is established on the flange, can contradict the flange to inundating and the coaxial setting of jib through the drive of a plurality of location drive assembly, so be convenient for snatch the mechanism and insert inside the flange, also be convenient for snatch of flange.

Optionally, the positioning sleeve is slidably connected with the boom along the axial direction of the boom, and a switching driving piece capable of driving the positioning sleeve to move along the axial direction of the boom is arranged on the positioning sleeve.

Through adopting above-mentioned technical scheme, switch the setting of driving piece for the positioning sleeve can slide above the jib, so after grabbing the flange of mechanism snatch, can make the positioning driving piece be located the flange downside through removing the positioning sleeve, and then can support the flange in the flange downside through the positioning driving piece, increase the stability that the flange was carried.

Optionally, the positioning driving assembly comprises a driving groove, the driving groove is formed in the inner wall of the positioning sleeve, and the forming direction of the driving groove is arranged along the radial direction corresponding to the positioning sleeve;

an abutting column is inserted into the driving groove, and the abutting column is connected with the inner wall of the driving groove in a sliding manner along the radial direction corresponding to the positioning sleeve;

and the contact supporting column is connected with a positioning driving source capable of driving the contact supporting column to slide.

Through adopting above-mentioned technical scheme, the cooperation of drive slot, touch post and location actuating source, can realize touching the flexible slip of post in the drive slot through the location actuating source, so can realize the location and the support to the flange.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the grabbing mechanism can be inserted into the flange through the arrangement of the supporting wedge blocks, the flange is supported in the axial direction of the flange, the possibility that the flange falls down due to jolt in the transportation process is reduced, and the stability of flange conveying is improved.

2. The lifting assembly in the grabbing mechanism is arranged, so that on one hand, the inner wall of the flange can be fixed, and the grabbing stability of the flange is improved; on the other hand, through the cooperation of lifting wedge and support wedge, can increase the space that support wedge inserted the flange bottom, the support of support wedge to the flange of being convenient for.

3. The positioning mechanism is arranged, so that the flange can be positioned, and the grabbing mechanism is convenient to grab the flange; on the other hand, the flange can also be supported.

Drawings

Fig. 1 is a schematic view of the overall structure of the spreader of the present application.

Fig. 2 is a schematic view of the overall structure of the spreader removal positioning mechanism in the present application.

Fig. 3 is a schematic view of the overall structure of the grasping mechanism in the present application.

Fig. 4 is a schematic cross-sectional view of the grasping mechanism in the present application.

Fig. 5 is a schematic view of the overall structure of the support wedge and support drive assembly of the present application.

Fig. 6 is a schematic partial structure of a position of the movable rod with a yielding slot hole in the present application.

Fig. 7 is a schematic cross-sectional view of a support guide in accordance with the present application.

Fig. 8 is a partially enlarged schematic view of the portion a in fig. 4.

In the figure, 1, a boom; 11. a fixed rod; 111. rotating the connecting groove; 112. a rotating shaft; 12. a movable rod; 121. a mounting groove; 122. a yielding slot; 123. a connecting piece; 13. a rotary drive assembly; 131. a mounting plate; 132. driving the push rod; 14. an auxiliary driving member; 141. an auxiliary plate; 142. an auxiliary push rod; 2. a hanging ring; 3. a grabbing mechanism; 31. a support wedge; 311. a guide slope; 32. a support drive assembly; 321. a driving rod; 322. a first connecting rod; 323. a second connecting rod; 324. pushing the driving source; 325. a movable sleeve; 326. fixing the sleeve; 33. supporting the guide post; 331. a guide groove; 332. a lifting assembly; 3321. a lifting groove; 3322. a clamping block; 3323. clamping the driving member; 3324. an elastic pad; 3325. lifting the wedge block; 3326. lifting the inclined plane; 4. a positioning mechanism; 41. positioning the sleeve; 42. positioning a driving assembly; 421. a driving groove; 422. a contact column; 423. positioning a driving source; 43. switching the driving piece; 431. a fixing plate; 432. a vertical drive source.

Detailed Description

The present application will be described in further detail with reference to fig. 1 to 8.

The utility model provides a hoist is used in transportation of external expansion formula flange, refer to fig. 1 and 2, including rings 2, jib 1 and snatch mechanism 3, jib 1 sets up along vertical direction, jib 1 upper end and jib 1 fixed connection, snatch mechanism 3 is located the lower extreme of jib 1. Therefore, the lifting ring 2 is connected with the conveying mechanism, and the grabbing mechanism 3 can achieve grabbing and fixing of the flange, so that the function of the lifting ring is achieved.

Referring to fig. 2, the boom 1 includes a fixed rod 11 and a movable rod 12, the fixed rod 11 and the movable rod 12 are all disposed along a vertical direction, an upper end of the fixed rod 11 is connected with the lifting ring 2, a lower end of the movable rod 12 is connected with the grabbing mechanism 3, the fixed rod 11 is rotatably connected with the movable rod 12, a rotary connecting groove 111 is formed in a lower side of the fixed rod 11, a length direction of the rotary connecting groove 111 is disposed along the vertical direction, and the rotary connecting groove 111 penetrates the fixed rod 11 along a horizontal direction. The movable rod 12 is in plug-in fit with the rotary connecting groove 111, the side wall of the movable rod 12 is rotationally connected with the inner wall of the rotary connecting groove 111, a rotary shaft 112 is arranged between the movable rod 12 and the fixed rod 11, the rotary shaft 112 penetrates through the movable rod 12 along the horizontal direction, the rotary shaft 112 is mutually connected with the fixed rod 11, and the rotary shaft 112 is rotationally connected with the movable rod 12. Therefore, the movable lever 12 and the fixed lever 11 can rotate about the rotation shaft 112 as a central axis.

Referring to fig. 2, a rotation driving assembly 13 is disposed between a fixed rod 11 and a movable rod 12, the rotation driving assembly 13 includes a mounting plate 131 and a driving push rod 132, the driving push rod 132 adopts a hydraulic cylinder or an air cylinder or a linear motor, the mounting plate 131 is disposed along a horizontal direction, one end of the mounting plate 131 is connected with the fixed rod 11, one end of the driving push rod 132 is rotatably connected with one end of the mounting plate 131 far away from the fixed rod 11, and the other end of the driving push rod 132 is rotatably connected with the movable rod 12. Therefore, the rotation of the movable lever 12 in the vertical plane can be achieved by the driving of the driving push rod 132.

Referring to fig. 2, an auxiliary driving member 14 is further disposed between the fixed rod 11 and the movable rod 12, the auxiliary driving member 14 includes an auxiliary plate 141 and an auxiliary push rod 142, the auxiliary push rod 142 adopts a hydraulic cylinder or an air cylinder or a linear motor, one end of the auxiliary plate 141 is connected with the fixed rod 11, the auxiliary plate 141 and the mounting plate 131 are disposed on both sides of the fixed rod 11 along the same radial direction of the fixed rod 11, the auxiliary plate 141 and the mounting plate 131 are disposed on both sides of the rotating shaft 112 along the vertical direction at intervals, one end of the auxiliary push rod 142 is rotatably connected with one end of the auxiliary plate 141 far from the fixed rod 11, the other end of the auxiliary push rod 142 is rotatably connected with the movable rod 12, and the rotational connection of the auxiliary push rod 142 and the movable rod 12 and the rotational connection of the driving push rod 132 and the movable rod 12 are symmetrically disposed on both sides of the rotating shaft 112 along the vertical direction. Therefore, the auxiliary driving member 14 can make the rotation of the movable rod 12 more stable.

Referring to fig. 3 and 4, the grasping mechanism 3 includes a plurality of support wedges 31, the support wedges 31 being disposed at uniform intervals along the circumferential direction of the boom 1, the support wedges 31 being disposed at intervals from the side wall of the boom 1. The side of the supporting wedge 31 facing away from the boom 1 is provided with a guiding inclined surface 311, the guiding inclined surface 311 is inclined in the vertical direction, and the guiding inclined surface 311 is inclined and extends downwards along the direction far away from the guide rod. The side of the support wedge 31 facing the boom 1 is connected with a support driving assembly 32, the support driving assembly 32 is connected with the support wedge 31, and the driving direction of the support driving assembly 32 is set along the direction of the support wedge 31 facing away from the boom 1.

Referring to fig. 4 and 5, after the hanger rod 1 is inserted into the flange, the supporting wedges 31 are inserted into the gaps at the lower side of the flange under the driving of the supporting driving assembly 32, and the flange moves upwards under the interference of the guide inclined planes 311 through the cooperation of the supporting wedges 31, so that the supporting wedges 31 can support the flange along the axial direction of the lower side of the flange, thereby realizing the grabbing of the flange.

Referring to fig. 4 and 5, the support driving assembly 32 includes a movable sleeve 325 and a fixed sleeve 326, the fixed sleeve 326 and the movable sleeve 325 are both sleeved outside the boom 1, the movable sleeve 325 is slidably connected with the boom 1 in a vertical direction, and the movable sleeve 325 is disposed at an upper side of the fixed sleeve 326 in a vertical direction at intervals. Be provided with head rod 322, second connecting rod 323 and actuating lever 321 between fixed sleeve 326 and the movable sleeve 325, head rod 322 and second connecting rod 323 all are in vertical direction slope setting, head rod 322 upper end and movable sleeve 325 rotate to be connected, second connecting rod lower extreme and fixed sleeve 326 rotate to be connected, head rod 322 lower extreme, second connecting rod 323 upper end and actuating lever 321 middle part rotate to be connected, actuating lever 321 sets up along vertical direction, actuating lever 321 lower extreme and the one side fixed connection of corresponding support voussoir 31 orientation jib 1. Thus, when movable sleeve 325 slides in a vertical direction, support wedge 31 can be driven in a direction toward boom 1 or away from boom 1.

The lower end of the first connecting rod 322 and the upper end of the second connecting rod 323 are both connected with the driving rod 321 in a sliding manner along the vertical direction. The arrangement is such that the first connecting rod 322 and the second connecting rod 323 can only drive the driving rod 321 to move in the radial direction of the boom 1, without moving the driving rod 321 in the vertical direction.

Referring to fig. 4 and 6, a push driving source 324 is connected to the movable socket 325, the push driving source 324 is disposed in a vertical direction, the push driving source 324 adopts a hydraulic push rod or a cylinder or a linear motor, and an output end of the push driving source 324 is connected to the movable socket 325.

The lower end of the movable rod 12 is provided with a mounting groove 121, the mounting groove 121 is vertically arranged, and the driving source 324 is pushed to be in plug-in fit with the mounting groove 121. A plurality of yielding slots 122 are formed in the inner wall of the mounting groove 121 in a penetrating manner, the plurality of yielding slots 122 are uniformly arranged at intervals along the circumferential direction of the movable rod 12, the length direction of the yielding slots 122 is arranged along the vertical direction, a connecting piece 123 is inserted into the yielding slots 122, the connecting piece 123 is slidably connected with the inner wall of the yielding slots 122 along the vertical direction, and two ends of the connecting piece 123 are respectively connected with the inner wall of the movable sleeve 325 and the output end of the pushing driving source 324.

The push driving source 324 is provided to enable the movable sleeve 325 to slide in the vertical direction, and the mounting groove 121, the yielding slot 122 and the connecting member 123 are engaged with each other to enable the push driving source 324 to be mounted.

Referring to fig. 3 and 4, the grasping mechanism 3 further includes a support guide post 33, the support guide post 33 is sleeved on the boom 1 and the support guide post 33 is slidably connected with the boom 1 in the vertical direction. A plurality of guide slots 331 have been seted up to support guide post 33 lateral wall, a plurality of guide slots 331 set up along the circumference of supporting guide post 33 even interval, guide slot 331 runs through along the radial of supporting guide post 33 and supports guide post 33, the length direction of guide slot 331 sets up along vertical direction, guide slot 331 and support voussoir 31 one-to-one setting, support voussoir 31 and the support drive assembly 32 of correspondence are pegged graft in the guide slot 331 of correspondence, support voussoir 31 and guide slot 331 inner wall sliding connection. Therefore, the guide groove 331 of the support guide post 33 is opened to limit and guide the movement of the support wedge 31.

Referring to fig. 3 and 7, a lifting assembly 332 is further disposed on the support guide column 33, the lifting assembly 332 includes a plurality of lifting grooves 3321, the lifting grooves 3321 are formed on the side wall of the support guide column 33, the plurality of lifting grooves 3321 are sequentially arranged at intervals along the circumferential direction of the support guide column 33, the length direction of the lifting grooves 3321 is arranged along the vertical direction, and the depth direction of the lifting grooves 3321 is arranged along the radial direction of the corresponding support guide column 33. The lifting assembly 332 further comprises a plurality of clamping blocks 3322, the clamping blocks 3322 are arranged in one-to-one correspondence with the lifting grooves 3321, the clamping blocks 3322 are in plug-in fit with the corresponding lifting grooves 3321 along the depth direction of the corresponding lifting grooves 3321, and the clamping blocks 3322 are in sliding connection with the inner walls of the corresponding lifting grooves 3321 along the depth direction of the corresponding lifting grooves 3321.

The clamping block 3322 is provided with a clamping driving member 3323 towards one side of the boom 1, the clamping driving member 3323 is arranged along the interval direction between the clamping block 3322 and the boom 1, and two ends of the clamping driving member 3323 are respectively connected with the corresponding clamping block 3322 and the inner wall of the corresponding lifting groove 3321. In the application, the clamping block 3322 is made of a magnet, the clamping driving piece 3323 is an electromagnet, besides, the clamping driving piece 3323 can be a hydraulic push rod or an air cylinder or a linear motor, or can be matched with a spring by adopting the electromagnet, so that the clamping block 3322 can slide in the corresponding lifting groove 3321.

When grabbing the flange, insert grabbing mechanism 3 in the ring flange, release the lifting groove 3321 that corresponds with clamp block 3322 through the clamp drive piece 3323 that corresponds, clamp block 3322 can conflict the inner wall of flange this moment to can realize grabbing of flange through the cooperation of a plurality of clamp block 3322, so lifting means 332 cooperation support the setting of voussoir 31 can increase the stability of grabbing of flange.

Referring to fig. 3 and 7, the clamping block 3322 is provided with an elastic pad 3324 at a side remote from the corresponding clamping driving member 3323, and the elastic pad 3324 is made of an elastic material such as rubber. When the clamping block 3322 abuts against the inner wall of the flange, the elastic pad 3324 deforms, so that the stability of fixing the clamping block 3322 with the inner wall of the flange can be improved.

Referring to fig. 4 and 8, the inner wall of the guide groove 331 is provided with a lifting wedge 3325, two sides of the width direction of the lifting wedge 3325 are fixedly connected with the inner wall of the guide groove 331, the lifting wedge 3325 is arranged at intervals with the boom 1 along the depth direction of the corresponding guide groove 331, one side of the lifting wedge 3325 facing the boom 1 is provided with a lifting inclined surface 3326, the lifting inclined surface 3326 is obliquely arranged in a vertical plane, and the lifting inclined surface 3326 is obliquely and downwardly extended along the direction far away from the boom 1. The lifting wedge 3325 and the corresponding supporting wedge 31 are oppositely arranged along the vertical direction, the lifting inclined surface 3326 is mutually attached to the guiding inclined surface 311, and the lifting inclined surface 3326 is in sliding connection with the guiding inclined surface 311.

Therefore, when the support driving assembly 32 drives the support wedge 31 to move away from the boom 1, the lifting wedge 3325 moves vertically upwards under the interference of the support wedge 31, and drives the support guide column 33 to slide upwards. Based on this principle, when the lifting mechanism in the supporting guide column 33 fixes the inner wall of the flange, the supporting wedge 31 pushes the guide support column to move upwards, and the flange can be driven to move upwards, so that the supporting wedge 31 is convenient to insert into the lower side of the flange, and the flange is convenient to support axially.

Referring to fig. 1 and 2, the boom 1 is further provided with a positioning mechanism 4, the positioning mechanism 4 includes a positioning sleeve 41, the positioning sleeve 41 is sleeved on the boom 1 along the vertical direction and the positioning sleeve 41 is slidably connected with the boom 1 along the vertical direction, the positioning sleeve 41 is sleeved on the outer side of the support guide post 33, and the outer side wall of the support guide post 33 and the inner wall of the positioning sleeve 41 are arranged at intervals.

A plurality of positioning driving assemblies 42 are arranged in the positioning sleeve 41, and the positioning driving assemblies 42 are uniformly arranged on the inner wall of the positioning sleeve 41 at intervals along the circumferential direction of the positioning sleeve 41. The positioning driving assembly 42 comprises a driving groove 421, the driving groove 421 penetrates through the inner wall of the positioning sleeve 41 along the corresponding radial direction of the positioning sleeve 41, an abutting column 422 is inserted into the driving groove 421, the abutting column 422 is connected with the inner wall of the driving groove 421 in a sliding mode along the corresponding opening direction of the driving groove 421, a positioning driving source 423 is arranged between one end of the abutting column 422 and the outer wall of the positioning sleeve 41, the positioning driving source 423 adopts a hydraulic push rod or an air cylinder or a linear motor, and the driving direction of the positioning driving source 423 is arranged along the sliding direction of an abutting shaft. Therefore, when grabbing the flange, the positioning sleeve 41 is sleeved on the flange, and the plurality of contact supporting columns 422 are pushed out, so that the flange is positioned, and the grabbing mechanism 3 can be inserted into the flange.

Referring to fig. 1 and 2, a switching driving part 43 is provided on a positioning sleeve 41, the switching driving part 43 includes a fixing plate 431, the fixing plate 431 is provided along a horizontal direction and one end of the fixing plate 431 is fixedly connected with a movable rod 12, the fixing plate 431 is located on the upper side of the positioning sleeve 41 along a vertical direction, a vertical driving source 432 is provided between the fixing plate 431 and the positioning sleeve 41, the vertical driving source 432 adopts a hydraulic push rod or a cylinder or a linear motor, and two ends of the vertical driving source 432 are respectively connected with the fixing plate 431 and the positioning sleeve 41.

Therefore, on the one hand, the positioning sleeve 41 is able to position the flange; after the grabbing mechanism 3 grabs the flange plate, the positioning sleeve 41 can vertically slide downwards through the switching driving piece 43, the abutting column 422 is pushed out at the moment, and the abutting column 422 can support the flange along the axial direction of the flange, so that the grabbing stability of the grabbing mechanism 3 to the flange is improved.

The implementation principle of the embodiment of the application is as follows: when grabbing the flange, the flange is positioned by the positioning mechanism 4, so that the flange and the boom 1 can be coaxially arranged; then, the boom 1 moves downwards relative to the positioning mechanism 4, and the grabbing mechanism 3 is inserted into the flange, so that the flange can be grabbed; after the grabbing is completed, the positioning sleeve 41 moves in the vertical direction by switching the driving piece 43, the abutting column 422 stretches out at the moment, the abutting column 422 is located on the lower side of the flange in the vertical direction, and therefore the flange can be supported by the abutting columns 422.

The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The lifting appliance for outward expansion type flange transportation comprises a lifting rod (1), and is characterized in that one end of the lifting rod (1) is provided with a lifting ring (2), and the other end of the lifting rod is connected with a grabbing mechanism (3);

the grabbing mechanism (3) comprises a plurality of supporting wedges (31), the supporting wedges (31) are sequentially arranged at intervals along the circumferential direction of the boom (1), and a supporting driving assembly (32) capable of driving the supporting wedges (31) to move along the direction far away from or close to the boom (1) is arranged on one side of the supporting wedges (31) facing the boom (1);

one side of the supporting wedge block (31) facing the lifting ring (2) is provided with a guide inclined surface (311), and the guide inclined surface (311) is obliquely arranged along the direction away from the lifting rod (1) in an extending way in the direction away from the lifting ring (2).

2. The spreader for transporting a flared flange according to claim 1, wherein the supporting driving assembly (32) comprises a driving rod (321), a first connecting rod (322), a second connecting rod (323) and a pushing driving source (324), the driving rod (321) being arranged in the longitudinal direction of the boom (1) in the axial direction, the supporting wedge (31) being interconnected with the driving rod (321);

the first connecting rod (322) is rotationally connected with the middle parts of the second connecting rod (323) and the driving rod (321), and the first connecting rod (322) and the second connecting rod (323) are both in sliding connection with the driving rod (321) along the length direction of the driving rod (321);

one end of the first connecting rod (322) far away from the second connecting rod (323) is rotationally connected with the pushing driving source (324), the driving direction of the pushing driving source (324) is along the length direction of the driving rod (321), and one end of the second connecting rod (323) far away from the first connecting rod (322) is rotationally connected with the suspender (1).

3. The outward-expansion type lifting appliance for flange transportation according to claim 1, wherein the grabbing mechanism (3) further comprises a supporting guide post (33), the supporting guide post (33) is sleeved outside the lifting rod (1), a plurality of guide grooves (331) are formed in the outer side wall of the supporting guide post (33), the length direction of the guide grooves (331) is along the axial direction of the lifting rod (1), and the guide grooves (331) penetrate through the side wall of the supporting guide post (33);

the guide grooves (331) are arranged in one-to-one correspondence with the supporting wedges (31), the supporting wedges (31) are inserted into the corresponding guide grooves (331), and the supporting wedges (31) are in sliding connection with the inner walls of the corresponding guide grooves (331).

4. A spreader for transporting a flared flange according to claim 3, wherein the supporting and guiding column (33) is further provided with a plurality of lifting assemblies (332), and the lifting assemblies (332) are sequentially arranged at intervals along the circumferential direction of the supporting and guiding column (33);

the lifting assembly (332) comprises a lifting groove (3321), the lifting groove (3321) is arranged on the outer side wall of the supporting guide column (33), a clamping block (3322) is inserted into the lifting groove (3321), the clamping block (3322) is in sliding connection with the inner wall of the lifting groove (3321),

a clamping driving piece (3323) capable of driving the clamping block (3322) to slide towards or away from the boom (1) is arranged on one side of the clamping block (3322) towards the boom (1).

5. The spreader for transporting a flared flange according to claim 4, characterized in that the side of the clamping block (3322) facing away from the boom (1) is connected with an elastic pad (3324).

6. A spreader for transporting a flared flange according to claim 4, characterized in that the support guiding column (33) is slidingly connected to the boom (1) in the axial direction of the boom (1);

the guide way (331) inner wall is provided with promotion wedge block (3325), promote wedge block (3325) are located the correspondence support wedge block (31) orientation one side of rings (2), promote wedge block (3325) orientation correspondence support wedge block (31) one side is provided with promotion inclined plane (3326), promote inclined plane (3326) slope setting just promote inclined plane (3326) and correspondence guide inclined plane (311) laminating each other, promote inclined plane (3326) and correspondence guide inclined plane (311) sliding connection.

7. The outward-expansion flange transportation sling according to claim 1, wherein the suspension rod (1) comprises a fixed rod (11) and a movable rod (12), the fixed rod (11) and the movable rod (12) are coaxially arranged, the fixed rod (11) is rotationally connected with the movable rod (12), one end of the fixed rod (11) far away from the movable rod (12) is mutually connected with the hanging ring (2), and one end of the movable rod (12) far away from the fixed rod (11) is mutually connected with the grabbing mechanism (3);

a rotation driving component (13) capable of driving the movable rod (12) to rotate is arranged between the fixed rod (11) and the movable rod (12).

8. The outward-expansion type lifting appliance for flange transportation according to claim 1, wherein the lifting rod (1) is further provided with a positioning mechanism (4), the positioning mechanism (4) comprises a positioning sleeve (41), the positioning sleeve (41) is sleeved outside the lifting rod (1), and the inner wall of the positioning sleeve (41) and the grabbing mechanism (3) are arranged at intervals;

a plurality of positioning driving assemblies (42) are arranged on the inner wall of the positioning sleeve (41), the positioning driving assemblies (42) are arranged at intervals along the circumferential direction of the positioning sleeve (41), and the driving direction of the positioning driving assemblies (42) is arranged along the corresponding radial direction of the positioning sleeve (41).

9. The spreader for transporting a flared flange according to claim 8, wherein the positioning sleeve (41) is slidably connected to the boom (1) along the axial direction of the boom (1), and a switching drive (43) capable of driving the positioning sleeve (41) to move along the axial direction of the boom (1) is provided on the positioning sleeve (41).

10. The spreader for transporting a flared flange according to claim 8, wherein the positioning driving assembly (42) comprises a driving groove (421), the driving groove (421) is formed on the inner wall of the positioning sleeve (41), and the forming direction of the driving groove (421) is along the corresponding radial direction of the positioning sleeve (41);

an abutting column (422) is inserted into the driving groove (421), and the abutting column (422) is connected with the inner wall of the driving groove (421) in a sliding manner along the corresponding radial direction of the positioning sleeve (41);

the interference column (422) is connected with a positioning driving source (423) capable of driving the interference column (422) to slide.