CN220684481U - Adjustable gantry crane - Google Patents
Adjustable gantry crane Download PDFInfo
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- CN220684481U CN220684481U CN202321780180.0U CN202321780180U CN220684481U CN 220684481 U CN220684481 U CN 220684481U CN 202321780180 U CN202321780180 U CN 202321780180U CN 220684481 U CN220684481 U CN 220684481U
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- 238000005452 bending Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 13
- 239000000725 suspension Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses an adjustable gantry crane, which belongs to the field of gantry cranes, and comprises a main beam, two supporting legs and a hoisting mechanism, wherein the main beam is arranged on the two supporting legs in a straddling manner, each supporting leg comprises a first supporting part, a second supporting part, a first adjusting sleeve and a first driving piece, and one end of the second supporting part is connected with the main beam; the first adjusting sleeve is connected to one end, far away from the main beam, of the second supporting part, and an included angle is formed between the first adjusting sleeve and the second supporting part; one end of the first supporting part, which is close to the second supporting part, is parallel to the first adjusting sleeve and is inserted into the first adjusting sleeve, and the first driving piece is connected with the first supporting part. The utility model has the advantages of adaptability to various complex working conditions and good adaptability.
Description
Technical Field
The utility model relates to the field of gantry cranes, in particular to an adjustable gantry crane.
Background
In recent years, the development of various industries in China is rapid, the rapid adjustment of national industrial structures, the rapid development of towns and the development requirements of various related industries provide a wide market for the development of hoisting industries. The portal crane is a deformation of bridge crane, also called portal crane, and is mainly used for loading and unloading operations of outdoor goods yard, stock yard goods and bulk goods.
However, in the process of building and installing structures in cities, the construction space is very narrow due to the fact that the construction space is often limited by places, most of two sides are busy city main roads, traffic is high, the traditional gantry crane is only suitable for being used in the same width construction range, and when the situation that the construction range is widened, the road surfaces are provided with transverse slopes, the road surfaces on two sides are changed and the elevations are different is difficult to adapt, so that the supporting legs of the gantry crane encroach on the public roads on two sides in a narrow space range to influence traffic of the red-line external road.
Disclosure of Invention
The utility model aims to provide an adjustable gantry crane which has the advantages of adaptability to various working conditions and good applicability.
The technical aim of the utility model is realized by the following technical scheme:
the utility model provides an adjustable gantry crane which comprises a main beam, two supporting legs and a hoisting mechanism, wherein the main beam is arranged on the two supporting legs in a straddling manner, each supporting leg comprises a first supporting part, a second supporting part, a first adjusting sleeve and a first driving piece, and one end of the second supporting part is connected with the main beam;
the first adjusting sleeve is connected to one end, far away from the main beam, of the second supporting part, and an included angle is formed between the first adjusting sleeve and the second supporting part; one end of the first supporting part, which is close to the second supporting part, is parallel to the first adjusting sleeve and is inserted into the first adjusting sleeve, and the first driving piece is connected to the first supporting part and is used for driving the first supporting part to move along the length direction of the first adjusting sleeve;
along the length direction of the first adjusting sleeve, a plurality of first adjusting holes are formed in the first adjusting sleeve and the first supporting portion, at least part of the first adjusting holes of the first adjusting sleeve are aligned with at least part of the first adjusting holes of the first supporting portion, and a first fixing piece can be penetrated at the same time.
In this scheme, support the girder through two landing legs, form adjustable gantry crane's frame, hoisting mechanism is used for lifting by crane article. The landing leg comprises a second supporting part, a first adjusting sleeve and a second supporting part, wherein the first adjusting sleeve is fixed on the second supporting part and forms an included angle with the second supporting part, so that when the first supporting part is inserted into the first adjusting sleeve and moves along the first adjusting sleeve, the first supporting part has a component which is horizontally displaced relative to the second supporting part, and the second supporting part is connected to the main beam, so that the first driving part can slide relative to the first adjusting sleeve of the two landing legs, the horizontal distance between the two second supporting parts is changed, the span of the adjustable gantry crane is adjusted, and after the span of the adjustable gantry crane is adjusted, the first supporting part and the first adjusting hole of the first adjusting sleeve are simultaneously penetrated through by the first fixing part, so that the landing leg can stably bear the load above. Therefore, the adjustable gantry crane is suitable for various working conditions such as different widths of construction ranges, and the applicability of the adjustable gantry crane is improved.
Preferably, an included angle formed between the first adjusting sleeve and the second supporting portion is greater than 90 °.
In this scheme, the contained angle that forms between first adjusting sleeve and the second supporting part is greater than 90, and first adjusting sleeve extends along slant lower direction promptly, from this makes first supporting part can bear vertical load when can the level adjustment, reduces the shear force that first adjusting sleeve and first supporting part received for adjustable gantry crane structure is more reasonable.
Preferably, the first adjusting sleeve is inclined downwards along a direction close to the middle of the gantry crane, and the first supporting part is positioned on one side of the first adjusting sleeve, which faces the inner side of the gantry crane.
In this scheme, first adjusting sleeve is towards the downward sloping in the middle part of the portal crane, and first supporting part is located one side of the inboard of first adjusting sleeve towards the portal crane to make the lower part of landing leg draw close to the centre, adjustable portal crane is the shape that upper portion is wide, lower part is narrow, thereby reduces the occupation of adjustable portal crane to the road surface, reduces the influence of adjustable portal crane to the road traffic.
Preferably, the second supporting part comprises an upper connecting section, a second adjusting sleeve and a lower connecting section, the upper connecting section is connected with the main beam, the lower connecting section is connected with the first adjusting sleeve, and the adjustable gantry crane further comprises a second driving piece;
the upper connecting section is fixed in the second adjusting sleeve, and the lower connecting section is inserted into the second adjusting sleeve; the second driving piece is connected to the lower connecting section and used for driving the lower connecting section to slide along the second adjusting sleeve; along the length direction of the second adjusting sleeve, a plurality of second adjusting holes are arranged on the second adjusting sleeve and the lower connecting section, at least part of the second adjusting holes of the second adjusting sleeve are aligned with at least part of the second adjusting holes of the lower connecting section, and a second fixing piece can be penetrated at the same time.
In this scheme, second supporting part includes linkage segment, second adjusting sleeve and lower linkage segment, and the relative second adjusting sleeve of linkage segment slides under the drive of second driving piece to adjust the length of second supporting part, and then adjust adjustable gantry crane's overall height. After the height of the gantry crane is adjusted, the lower connecting section and the second adjusting sleeve are simultaneously penetrated in the second connecting hole of the lower connecting section and the second adjusting sleeve through the second fixing piece so as to accurately fix the lower connecting section and the second adjusting sleeve, and therefore the second supporting part can stably bear the load above the second supporting part.
Preferably, the second supporting part comprises an upper connecting section, a second adjusting sleeve and a lower connecting section, the upper connecting section is connected with the main beam, the lower connecting section is connected with the first adjusting sleeve, and the adjustable gantry crane further comprises a second driving piece;
the lower connecting section is fixed in the second adjusting sleeve, and the upper connecting section is inserted into the second adjusting sleeve; the second driving piece is connected to the upper connecting section and used for driving the upper connecting section to slide along the second adjusting sleeve; along the length direction of the second adjusting sleeve, a plurality of second adjusting holes are formed in the second adjusting sleeve and the upper connecting section, at least part of the second adjusting holes of the second adjusting sleeve are aligned with at least part of the second adjusting holes of the upper connecting section, and a second fixing piece can be simultaneously arranged in a penetrating mode.
In this scheme, provide another kind of connection mode of second supporting part, wherein, second adjusting sleeve is fixed in the hypomere, thereby the height of adjustable gantry crane is slided to the upper junction section through second adjusting sleeve.
Preferably, the first supporting part comprises a supporting section and a bending section, the supporting section is vertically arranged, the bending section is connected with the supporting section, and the bending section and the supporting section are arranged in an included angle;
the support section is slidably inserted into the first adjusting sleeve and can be connected with the first adjusting sleeve through the first fixing piece.
In the scheme, the first supporting part comprises a supporting section and a bending section, wherein the supporting section is vertically arranged to better bear vertical load and support a component above the supporting section; the bending section is arranged at an included angle with the supporting section, so that the bending section can be inserted into the first adjusting sleeve to be matched with the first adjusting sleeve.
Preferably, a traveling mechanism and a reversing mechanism are arranged at the bottom of the first supporting part, the traveling mechanism is used for traveling along a horizontal plane, and the reversing mechanism is arranged on the traveling mechanism and used for switching the traveling direction of the traveling mechanism.
In this scheme, running gear is set up to the bottom of first supporting part, and running gear's direction of travel can be adjusted to reversing mechanism to remove adjustable gantry crane to suitable position, make first supporting part running gear's direction of travel when sliding the same with the horizontal slip direction of first supporting part simultaneously, and then reduce the resistance when first supporting part slides, make things convenient for the slip of movable landing leg.
Preferably, the first driving member includes an oil cylinder, the cylinder body of the oil cylinder is fixed on the second supporting portion or the first adjusting sleeve, the piston rod of the oil cylinder is connected to the second supporting portion, and the expansion direction of the piston rod of the oil cylinder is parallel to the length direction of the first adjusting sleeve.
In this scheme, select the hydro-cylinder to drive first supporting part and slide, its simple structure, simple to operate, and power is sufficient, adapts to the regulation demand of first supporting part.
Preferably, a plurality of the first adjustment holes are arranged in an array.
In this scheme, along first telescopic length direction of adjusting, a plurality of first regulation holes are the array and arrange, and the sliding distance of the first supporting part of step adjustment of being convenient for is convenient for set up in the first regulation hole simultaneously.
Preferably, the first adjusting sleeve is a square sleeve.
In this scheme, first adjustment sleeve is square sleeve for first supporting part slides more stably in first adjustment sleeve.
In summary, the utility model has the following beneficial effects:
according to the utility model, the second supporting parts of the two supporting legs can slide relative to the first adjusting sleeves of the two supporting legs, so that the horizontal distance between the two second supporting parts is changed, the span of the adjustable gantry crane is adjusted, and when the span of the adjustable gantry crane is adjusted, the adjustable gantry crane is simultaneously penetrated into the first supporting parts and the first adjusting holes of the first adjusting sleeves through the first fixing parts, so that the first supporting parts and the second supporting parts can be accurately fixed, and the supporting legs can stably bear the load above. Therefore, the adjustable gantry crane is suitable for various working conditions such as different widths of construction ranges, and the applicability of the adjustable gantry crane is improved.
Drawings
Fig. 1 is a schematic diagram of a front view of an adjustable gantry crane according to an embodiment of the present utility model.
Fig. 2 is a schematic side view of an adjustable gantry crane according to an embodiment of the utility model.
Fig. 3 is a partial schematic illustration of a leg of an adjustable gantry crane in accordance with an embodiment of the present utility model.
Fig. 4 is a partial schematic diagram of a leg of an adjustable gantry crane according to an embodiment of the utility model.
In the figure:
100. an adjustable gantry crane; 200. a main beam; 300. a support leg; 310. a vertical support assembly; 311. a first support portion; 3111. a support section; 3112. bending sections; 312. a second supporting part; 3121. an upper connecting section; 3122. a second adjustment sleeve; 3123. a lower connecting section; 3124. a second adjustment aperture; 3125. a second fixing member; 313. a first adjustment sleeve; 314. a first driving member; 315. a first adjustment aperture; 316. a first fixing member; 317. a second driving member; 320. a transverse corbel; 330. connecting the cross bars; 340. diagonal bracing; 360. a walking mechanism; 361. a roller; 362. a frame; 363. hydraulic suspension; 370. a reversing mechanism; 400. a lifting mechanism; 410. a lifting trolley; 420. a lifting appliance; 430. and a winding machine.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The embodiment provides an adjustable gantry crane 100, which can be used for lifting articles of bridge road construction or other construction structures, is applicable to urban roads with heavy traffic, can save sites, can be used in a plurality of projects, increases the utilization rate, saves a large amount of funds, greatly improves the working efficiency while solving the problem of large investment funds of equipment cost, and saves manpower and time.
Referring to fig. 1, the adjustable gantry crane 100 includes a main beam 200, two legs 300, and a lifting mechanism 400. The two support legs 300 are supported on the ground, the main beam 200 is arranged on the two support legs 300 in a straddling manner, and the lifting mechanism 400 is arranged above the main beam 200 and is used for lifting articles.
Referring to fig. 1 and 2, in the present embodiment, two legs 300 are identical in structure, and the two legs 300 are symmetrically disposed along a vertical plane. Each of the legs 300 includes two vertical supporting members 310 and one transverse strut 320, the two vertical supporting members 310 are disposed at intervals, and the transverse strut 320 is connected between the two vertical supporting members 310, so that the transverse strut 320 and the two vertical supporting members 310 form a frame structure for supporting to stably support the main beam 200. In other embodiments, each leg 300 may include only one vertical support assembly 310, with the bottom area of the vertical support assembly 310 being larger to stabilize the support girder 200.
In some preferred embodiments, at least two connecting rails 330 are disposed in parallel on two adjacent vertical support assemblies 310, and the connecting rails 330 are horizontally connected between the two vertical support assemblies 310 to strengthen the structural strength of the leg 300. Wherein a plurality of diagonal braces 340 are provided between two adjacent connecting rails 330, thereby forming a plurality of triangular truss structures between the connecting rails 330, and improving the structural strength and stability of the leg 300.
Referring to fig. 1 and 3, the vertical support assembly 310 includes a first support 311, a second support 312, a first adjustment sleeve 313, and a first driver 314. One end of the second support 312 is connected to the main beam 200; the first adjusting sleeve 313 is connected to an end of the second supporting portion 312 away from the main beam 200, and the first adjusting sleeve 313 forms an included angle with the second supporting portion 312. One end of the first supporting portion 311, which is close to the second supporting portion 312, is parallel to the first adjusting sleeve 313 and is inserted into the first adjusting sleeve 313, and the first driving member 314 is connected to the first supporting portion 311 and is used for driving the first supporting portion 311 to move along the length direction of the first adjusting sleeve 313.
Thus, when the portion of the first support portion 311 that can be inserted into the first adjustment sleeve 313 moves along the first adjustment sleeve 313, the first support portion 311 has a component that is horizontally displaced relative to the second support portion 312, and since the second support portion 312 is connected to the main beam 200, the first driving member 314 can slide the second support portions 312 of the two support legs 300 relative to the first adjustment sleeve 313 of the two support legs 300, so that the horizontal distance between the two second support portions 312 changes, and the span of the adjustable gantry crane 100 is adjusted.
Along the length direction of the first adjusting sleeve 313, a plurality of first adjusting holes 315 are disposed in the first adjusting sleeve 313 and the first supporting portion 311, and at least a portion of the first adjusting holes 315 of the first adjusting sleeve 313 are aligned with at least a portion of the first adjusting holes 315 of the first supporting portion 311 and can simultaneously penetrate through a first fixing member 316. After the span of the adjustable gantry crane 100 is adjusted, the first fixing piece 316 is simultaneously inserted into the first adjusting holes 315 of the first supporting portion 311 and the first adjusting sleeve 313, so that the first supporting portion 311 and the second supporting portion 312 are accurately fixed, and the supporting leg 300 can stably bear the load above. Therefore, the adjustable gantry crane is suitable for various working conditions such as different widths of construction ranges, and the applicability of the adjustable gantry crane is improved.
The first adjusting sleeve 313 is a square sleeve, and one end of the first supporting portion 311 near the second supporting portion 312 is square adapted to the first adjusting sleeve 313, so that the first supporting portion 311 slides in the first adjusting sleeve 313 more stably.
In this embodiment, the plurality of first adjustment holes 315 are arranged in an array on the first adjustment sleeve 313 and the first support portion 311, so as to facilitate the step adjustment of the sliding distance of the first support portion 311, and facilitate the opening of the first adjustment holes 315. Specifically, along the length direction of the first adjustment sleeve 313, two rows of first adjustment holes 315 are arranged in parallel, and each row of first adjustment holes 315 includes 6 first adjustment holes 315.
The first fixing member 316 may be a connecting member such as a connecting pin or a bolt, and in this embodiment, a pin is specifically selected, and the pin is inserted into the first adjusting hole 315 to connect the first adjusting sleeve 313 and the first supporting portion 311.
In this embodiment, the included angle α formed between the first adjusting sleeve 313 and the second supporting portion 312 is greater than 90 °, that is, the first adjusting sleeve 313 extends along the obliquely downward direction, so that the first supporting portion 311 can carry a vertical load while being able to be adjusted horizontally, and the shearing force received by the first adjusting sleeve 313 and the first supporting portion 311 is reduced, so that the adjustable gantry crane 100 has a more reasonable structure.
The first adjusting sleeve 313 is inclined downwards along the direction close to the middle of the gantry crane, and the first supporting portion 311 is located on one side of the first adjusting sleeve 313 facing the inner side of the adjustable gantry crane 300, so that the lower portion of the supporting leg 300 is close to the middle, the adjustable gantry crane 100 is in a shape with a wide upper portion and a narrow lower portion, occupation of the adjustable gantry crane 100 on a road surface is reduced, and influence of the adjustable gantry crane 100 on road traffic is reduced.
Referring to fig. 3, the first support part 311 includes a support section 3111 and a bent section 3112, and the support section 3111 is vertically disposed and supported on the ground to better bear vertical loads, supporting members thereabove. The bending section 3112 is connected to the support section 3111, and the bending section 3112 is disposed at an angle to the support section 3111. The support section 3111 is slidably inserted into the first adjustment sleeve 313 and can be connected to the first adjustment sleeve 313 by means of a first fastening element 316, so that the bending section 3112 can be inserted into the first adjustment sleeve 313 and cooperate with the first adjustment sleeve 313.
The angle β formed by the bent segment 3112 and the support segment 3111 is > 90 °, so that vertical stresses can be better absorbed by the support segment 3111.
Specifically, the bending section 3112 is adapted to the first adjustment sleeve 313, and the first adjustment hole 315 of the first support portion 311 is disposed on the bending section 3112.
Referring to fig. 1 to 3, a traveling mechanism 360 and a reversing mechanism 370 are provided at the bottom of the first supporting portion 311, the traveling mechanism 360 is configured to travel along a horizontal plane, and the reversing mechanism 370 is provided to the traveling mechanism 360 for switching a traveling direction of the traveling mechanism 360. The traveling direction of the traveling mechanism 360 can be adjusted through the reversing mechanism 370 so as to move the adjustable gantry crane 100 to a proper position, and meanwhile, the traveling direction of the traveling mechanism 360 and the horizontal sliding direction of the first supporting portion 311 are the same when the first supporting portion 311 slides, so that the resistance of the first supporting portion 311 during sliding is reduced, and the sliding of the movable supporting leg 300 is facilitated.
Specifically, running gear 360 includes rollers 361, a carriage 362, and a hydraulic suspension 363. The roller 361 is rotatably connected to the bottom of the leg 300, and the frame 362 is covered on the upper portion of the roller 361, so as to play a role in enclosing the roller 361. The hydraulic suspension 363 is arranged at the roller 361 and plays a role of shock absorption and buffering. The running mechanism 360 adopts rollers, which do not need to preset tracks, are convenient to set, and can adapt to more paths of surfaces.
Preferably, the roller 361 is a roller 361 with a locking device, so that the running mechanism 360 is locked after the running mechanism 360 runs to a proper position, and displacement of the adjustable gantry crane 100 during operation is avoided.
In other embodiments, the running gear 360 may be a rail or other suitable mechanism.
In this embodiment, the first driving member 314 includes an oil cylinder, and the oil cylinder is connected to the hydraulic pump through an oil pipe assembly. The cylinder body of the oil cylinder is fixed on the second supporting part 312 or the first adjusting sleeve 313, the piston rod of the oil cylinder is connected to the first supporting part 311, and the extending and contracting direction of the piston rod of the oil cylinder is parallel to the length direction of the first adjusting sleeve 313. The structure is simple, the installation is convenient, the power is sufficient, and the adjusting requirement of the first supporting part 311 is met. In other embodiments, the slide drive may be another linear drive such as a motor screw mechanism, a motor rack and pinion mechanism, or other suitable drive
Referring to fig. 1 and 4, the second support 312 includes an upper connection section 3121, a second adjustment sleeve 3122, and a lower connection section 3123, the upper connection section 3121 being connected to the main girder 200, the lower connection section 3123 being connected to the first adjustment sleeve 313.
Wherein the adjustable gantry crane 100 further comprises a second drive 317. The upper connection section 3121 is fixed to the second adjustment sleeve 3122, and an end of the lower connection section 3123 remote from the first adjustment sleeve 313 is inserted into the second adjustment sleeve 3122. The second driving member 317 is coupled to the lower connection section 3123 for driving the lower connection section 3123 to slide along the second adjustment sleeve 3122.
The second drive member 317 includes a ram that is connected to the hydraulic pump via a tubing assembly. The cylinder body of the oil cylinder is fixed on the second adjusting sleeve 3122 or the upper connecting section 3121, the piston rod of the oil cylinder is connected to the lower connecting section 3123, and the telescopic direction of the oil cylinder is parallel to the length direction of the second adjusting sleeve 3122. In other embodiments, the second driving member 317 may be any other suitable linear driving mechanism.
In this embodiment, the second adjustment sleeve 3122 is a square sleeve, and the lower connection section 3123 is square to fit the second adjustment sleeve 3122.
Along the length direction of the second adjusting sleeve 3122, a plurality of second adjusting holes 3124 are disposed on the second adjusting sleeve 3122 and the lower connecting section 3123, and at least a portion of the second adjusting holes 3124 of the second adjusting sleeve 3122 are aligned with at least a portion of the second adjusting holes 3124 of the lower connecting section 3123 and can simultaneously pass through a second fixing member 3125.
Thereby, the lower connection section 3123 is driven to slide relative to the second adjustment sleeve 3122 by the second driving member 317, thereby adjusting the length of the second support portion 312, and thus adjusting the overall height of the adjustable gantry crane 100. After the height of the gantry crane is adjusted, the second fixing member 3125 is simultaneously inserted into the second connection holes of the lower connection section 3123 and the second adjustment sleeve 3122 to accurately fix the lower connection section 3123 and the second adjustment sleeve 3122, so that the second supporting portion 312 can stably bear the load above.
In this embodiment, a plurality of second adjustment apertures 3124 are arranged in an array in the second adjustment sleeve 3122 and the lower connection segment 3123. Specifically, two rows of second adjustment apertures 3124 are disposed on the second adjustment sleeve 3122, each row of second adjustment apertures 3124 including three adjustment apertures disposed at intervals.
The second fixing member 3125 may be a bolt, a pin, or other connecting member, and a pin is specifically selected in this embodiment.
In addition, in other embodiments, the lower connection section 3123 may be fixed to the second adjustment sleeve 3122, and the upper connection section 3121 is inserted into the second adjustment sleeve 3122. The second driving member 317 is coupled to the upper connection section 3121 to drive the upper connection section 3121 to slide along the second adjustment sleeve 3122, and the second adjustment aperture 3124 is provided on the second adjustment sleeve 3122 and the upper connection section 3121.
Referring to fig. 1, the lifting mechanism 400 includes a lifting trolley 410 and a lifting tool 420, and the lifting trolley 410 is slidably disposed above the girder 200 in a length direction of the girder 200 to lift an article at different positions or to send the lifted article to different positions. The lifting appliance 420 is vertically connected below the lifting trolley in a lifting manner and is used for grabbing articles to be lifted.
Preferably, the lifting mechanism 400 further includes a hoist 430, the hoist 430 being disposed above the main beam 200 and at an end of the main beam 200, the hoist 430 or the trolley 410 being selected to lift according to a lifting load.
The implementation principle of the adjustable gantry crane 100 of this embodiment is as follows:
when the construction limit is narrowed due to the widening of the roads on both sides, the pins on the first supporting part 311, the first adjusting sleeve 313, the second supporting part 312 and the second adjusting sleeve 3122 are taken out, the first supporting parts 311 of the two supporting legs 300 are adjusted to move towards each other by the oil cylinders on the first adjusting sleeve 313 to shrink the span of the adjustable gantry crane 100, meanwhile, the upper connecting section 3121 is driven to move downwards towards the direction close to the lower connecting section 3123 by the oil cylinders on the second adjusting sleeve 3122, so that the height of the main girder 200 is the same as the original, after the span of the supporting legs 300 meets the construction limit requirement, the pins are inserted to fasten the first adjusting sleeve 313 and the first supporting part 311, and fasten the second adjusting sleeve 3122 and the second supporting part 312, each part of the device is checked, and the lifting is performed after the fault-free and working state is ensured.
When the construction limit is widened due to the narrowing of the roads at both sides, the pins on the first supporting part 311, the first adjusting sleeve 313, the second supporting part 312 and the second adjusting sleeve 3122 are taken out, the first supporting parts 311 of the two supporting legs 300 are moved back to each other by the adjustment of the oil cylinders on the first adjusting sleeve 313 to expand the span of the adjustable gantry crane 100, and the upper connecting section 3121 is driven to move up away from the lower connecting section 3123 by the oil cylinders on the second adjusting sleeve 3122, so that the height of the main girder 200 is the same as the original, and after the span of the supporting legs 300 meets the construction limit requirement, the pins are inserted to fasten the first adjusting sleeve 313 and the first supporting part 311 and fasten the second adjusting sleeve 3122 and the second supporting part 312, and each part of the device is checked to ensure that the lifting is performed after the fault-free and the working state is reached.
When the elevation difference exists on the roads at two sides, the pin shafts on the first supporting part 311, the first adjusting sleeve 313, the second supporting part 312 and the second adjusting sleeve 3122 are taken out, and the second supporting part 312 is adjusted by the oil cylinder on the second supporting part 312, so that the main girder 200 of the gantry crane device still keeps horizontal balance under the condition that the elevation difference exists on the roads at two sides. And then a pin is inserted to fasten the second adjusting sleeve 3122 and the second supporting part 312, each part of the device is inspected, and the lifting is performed after the working state is reached and no fault is ensured.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (10)
1. The adjustable gantry crane comprises a main beam, two supporting legs and a hoisting mechanism, wherein the main beam is arranged on the two supporting legs in a straddling mode;
the first adjusting sleeve is connected to one end, far away from the main beam, of the second supporting part, and an included angle is formed between the first adjusting sleeve and the second supporting part; one end of the first supporting part, which is close to the second supporting part, is parallel to the first adjusting sleeve and is inserted into the first adjusting sleeve, and the first driving piece is connected to the first supporting part and is used for driving the first supporting part to move along the length direction of the first adjusting sleeve;
along the length direction of the first adjusting sleeve, a plurality of first adjusting holes are formed in the first adjusting sleeve and the first supporting portion, at least part of the first adjusting holes of the first adjusting sleeve are aligned with at least part of the first adjusting holes of the first supporting portion, and a first fixing piece can be penetrated at the same time.
2. An adjustable gantry crane according to claim 1, wherein the first adjustment sleeve forms an angle with the second support portion of greater than 90 °.
3. An adjustable gantry crane according to claim 2, wherein the first adjustment sleeve is inclined downwards in a direction towards the middle of the gantry crane, and the first support is located on a side of the first adjustment sleeve facing the inside of the gantry crane.
4. An adjustable gantry crane according to any one of claims 1 to 3, wherein the second support comprises an upper connection section, a second adjustment sleeve and a lower connection section, the upper connection section being connected to the main beam, the lower connection section being connected to the first adjustment sleeve, the adjustable gantry crane further comprising a second drive member;
the upper connecting section is fixed in the second adjusting sleeve, and the lower connecting section is inserted into the second adjusting sleeve; the second driving piece is connected to the lower connecting section and used for driving the lower connecting section to slide along the second adjusting sleeve; along the length direction of the second adjusting sleeve, a plurality of second adjusting holes are arranged on the second adjusting sleeve and the lower connecting section, at least part of the second adjusting holes of the second adjusting sleeve are aligned with at least part of the second adjusting holes of the lower connecting section, and a second fixing piece can be penetrated at the same time.
5. An adjustable gantry crane according to any one of claims 1 to 3, wherein the second support comprises an upper connection section, a second adjustment sleeve and a lower connection section, the upper connection section being connected to the main beam, the lower connection section being connected to the first adjustment sleeve, the adjustable gantry crane further comprising a second drive member;
the lower connecting section is fixed in the second adjusting sleeve, and the upper connecting section is inserted into the second adjusting sleeve; the second driving piece is connected to the upper connecting section and used for driving the upper connecting section to slide along the second adjusting sleeve; along the length direction of the second adjusting sleeve, a plurality of second adjusting holes are formed in the second adjusting sleeve and the upper connecting section, at least part of the second adjusting holes of the second adjusting sleeve are aligned with at least part of the second adjusting holes of the upper connecting section, and a second fixing piece can be simultaneously arranged in a penetrating mode.
6. The adjustable gantry crane of claim 1, wherein the first support portion includes a support section and a bending section, the support section is vertically disposed, the bending section is connected to the support section, and the bending section is disposed at an angle with the support section;
the support section is slidably inserted into the first adjusting sleeve and can be connected with the first adjusting sleeve through the first fixing piece.
7. The adjustable gantry crane of claim 1, wherein a traveling mechanism and a reversing mechanism are arranged at the bottom of the first support portion, the traveling mechanism is used for traveling along a horizontal plane, and the reversing mechanism is arranged on the traveling mechanism and is used for switching traveling directions of the traveling mechanism.
8. The adjustable gantry crane of claim 1, wherein the first driving member comprises an oil cylinder, a cylinder body of the oil cylinder is fixed on the second supporting portion or the first adjusting sleeve, a piston rod of the oil cylinder is connected to the second supporting portion, and a telescopic direction of the piston rod of the oil cylinder is parallel to a length direction of the first adjusting sleeve.
9. An adjustable gantry crane as claimed in claim 1, wherein a plurality of the first adjustment apertures are arranged in an array.
10. An adjustable gantry crane as claimed in claim 1, wherein the first adjustment sleeve is a square sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321780180.0U CN220684481U (en) | 2023-07-07 | 2023-07-07 | Adjustable gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321780180.0U CN220684481U (en) | 2023-07-07 | 2023-07-07 | Adjustable gantry crane |
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