CN213037273U - Self-propelled hydraulic lifting gantry crane - Google Patents
Self-propelled hydraulic lifting gantry crane Download PDFInfo
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- CN213037273U CN213037273U CN202021981508.1U CN202021981508U CN213037273U CN 213037273 U CN213037273 U CN 213037273U CN 202021981508 U CN202021981508 U CN 202021981508U CN 213037273 U CN213037273 U CN 213037273U
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Abstract
The utility model discloses a self-propelled hydraulic lifting gantry crane belongs to hoisting equipment technical field, including the girder, its characterized in that: the lifting trolley is characterized by further comprising a first overturning oil cylinder and a second overturning oil cylinder, one end of the first overturning oil cylinder is in pin joint with the first walking trolley, the other end of the first overturning oil cylinder is in pin joint with the bottom of the first door leg, one end of the second overturning oil cylinder is in pin joint with the second walking trolley, the other end of the second overturning oil cylinder is in pin joint with the bottom of the second door leg, a first lifting oil cylinder is fixed at the top of the first door leg, a second lifting oil cylinder is fixed at the top of the second door leg, a first guide pulley and a second guide pulley are fixed at the middle of the main beam, a first rope is connected onto the first guide pulley in a winding mode, and a second rope is connected onto the second guide pulley in a winding. The utility model discloses an assembled structure, simple structure does benefit to the field installation, and the portal frame is collapsible, makes the portal frame height reduce, the transportation and the transport of being convenient for, and the hoist and mount mode is nimble, satisfies the operation of different work condition.
Description
Technical Field
The utility model relates to hoisting equipment technical field especially relates to a self-propelled hydraulic lifting portal crane.
Background
When heavy objects are to be lifted, a lifting device is generally used. However, in some narrow spaces, when large-scale hoisting equipment cannot enter the field, the simple gantry crane is adopted for operation. The portal frame is used as a main structure of the portal crane, the assembly of the portal frame is usually in a welding or bolt connection mode, and the portal frame cannot be disassembled after the welding mode is adopted, so that great difficulty is brought to the moving of equipment, and the portal frame does not have flexibility. Adopt bolted connection, though can dismantle, still need reinstallate the debugging after removing, the step is loaded down with trivial details, does not possess the flexibility yet. Meanwhile, most gantry cranes have single hoisting mode and are difficult to operate under different working conditions.
Chinese patent publication No. CN 203855359U, publication No. 2014, 10.01.b., discloses a mobile double-arm hydraulic gantry crane, which comprises a frame upright assembly and an upper beam assembly, and is characterized in that: the upper beam assembly is fixed with a lifting oil cylinder, the lifting oil cylinder comprises a left lifting oil cylinder and a right lifting oil cylinder, the left lifting oil cylinder is connected with the left steel wire lifting rope, the right lifting oil cylinder is connected with the right steel wire lifting rope, and the bottom of the stand column assembly of the frame is connected with the driving wheel assembly.
The mobile double-arm hydraulic gantry crane disclosed in the patent document has the advantages that the stress of the crane is more uniform and the bearing capacity is large by adopting a bidirectional hoisting design, four wheels are simultaneously steered, and double driving wheels are simultaneously driven in the same direction, so that the steering is fast and convenient. However, the device is inconvenient to install on site, difficult to transport and carry, single in hoisting mode and difficult to meet the operation of different working conditions.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art's defect, provide a self-propelled hydraulic lifting portal crane, the utility model discloses an assembly type structure, simple structure does benefit to the field installation, and the portal frame is collapsible, makes the portal frame height reduce, the transportation and the transport of being convenient for, and the hoist and mount mode is nimble, satisfies different operating mode operation.
The utility model discloses a following technical scheme realizes:
the utility model provides a self-propelled hydraulic lifting gantry crane, includes girder, first door leg, second door leg, first walking platform truck and second walking platform truck, the one end and the first door leg fixed connection of girder, the other end and second door leg fixed connection, its characterized in that: the main beam is fixedly provided with a first guide pulley and a second guide pulley, the first guide pulley is connected with a first rope in a winding manner, the first rope is connected with the first lifting oil cylinder, the second guide pulley is connected with a second lifting oil cylinder in a winding manner, and the second rope is connected with the second lifting oil cylinder.
A connecting beam is arranged between the first door leg and the second door leg, one end of the connecting beam is connected with the first door leg, and the other end of the connecting beam is connected with the second door leg.
First walking platform truck includes first solid rubber tire, first wheel axle, first trinity reduction gear, first leading sprocket, first chain, first auxiliary chain wheel, first platform truck chassis and fix the first platform truck frame on first platform truck chassis, first auxiliary chain wheel is installed at first wheel epaxially, first trinity reduction gear is fixed on first platform truck chassis, first solid rubber tire is installed on first platform truck chassis through first wheel axle, the output and the first leading sprocket of first trinity reduction gear are connected, first auxiliary chain wheel is connected with first leading sprocket through first chain.
The second walking trolley comprises a second solid rubber tire, a second wheel shaft, a second three-in-one speed reducer, a second main chain wheel, a second chain, a second auxiliary chain wheel, a second trolley chassis and a second trolley frame fixed on the second trolley chassis, the second auxiliary chain wheel is installed on the second wheel shaft, the second three-in-one speed reducer is fixed on the second trolley chassis, the second solid rubber tire is installed on the second trolley chassis through the second wheel shaft, the output end of the second three-in-one speed reducer is connected with the second main chain wheel, and the second auxiliary chain wheel is connected with the second main chain wheel through the second chain.
And a first balance oil cylinder is arranged on the first trolley chassis, one end of the first balance oil cylinder is connected with the first trolley frame, and the other end of the first balance oil cylinder is connected with the first trolley chassis.
And a second balancing oil cylinder is arranged on the second trolley chassis, one end of the second balancing oil cylinder is connected with the second trolley frame, and the other end of the second balancing oil cylinder is connected with the second trolley chassis.
First trinity reduction gear is located the front end on first platform truck chassis, and first balanced hydro-cylinder is located the rear end on first platform truck chassis.
The trinity reduction gear of second is located the front end on second platform truck chassis, and the balanced hydro-cylinder of second is located the rear end on second platform truck chassis.
The working principle of the utility model is as follows:
when the lifting device is used, if two ends of a heavy object to be lifted are easy to serve as lifting points, one end of the heavy object to be lifted is tied to a first rope, the other end of the heavy object to be lifted is tied to a second rope, the first rope is lifted upwards through contraction of a first lifting oil cylinder, and the second rope is lifted upwards through contraction of a second lifting oil cylinder, so that the heavy object to be lifted can be lifted; if the middle part of the heavy object to be hoisted is easy to be used as a hoisting point, a first rope and a second rope are tied on the middle part of the heavy object to be hoisted respectively, the first rope is hoisted through a first hoisting oil cylinder after being wound and connected by a first guide pulley, and the second rope is hoisted through a second hoisting oil cylinder after being wound and connected by a second guide pulley, so that the hoisting of the heavy object to be hoisted can be completed; the hoisting mode is flexible, and the operation under different working conditions is met.
The beneficial effects of the utility model are mainly expressed in the following aspect:
1. the utility model discloses a "first door leg is pin-jointed with first walking trolley, the second door leg is pin-jointed with second walking trolley, one end of first upset hydro-cylinder is pin-jointed with first walking trolley, the other end is pin-jointed with the bottom of first door leg, one end of second upset hydro-cylinder is pin-jointed with second walking trolley, the other end is pin-jointed with the bottom of second door leg, the top of first door leg is fixedly connected with first lifting cylinder, the top of second door leg is fixedly connected with second lifting cylinder, the middle part of girder is fixed with first guide pulley and second guide pulley, the first rope is wire-wrapped on the first guide pulley, the first rope is connected with first lifting cylinder, the wire-wrapped on the second guide pulley is connected with the second rope, the second rope is connected with the second lifting cylinder", compared with the prior art, portal crane is wholly of fabricated structure, simple structure, be favorable to on-site installation, portal frame that door leg and girder formed is collapsible through upset hydro-cylinder, the height of the portal frame is reduced, the portal frame is convenient to transport and carry, the hoisting mode of the heavy object is more flexible through the guide pulley, and the operation under different working conditions is met.
2. The utility model discloses, be provided with the tie-beam between first door leg and the second door leg, the one end and the first door leg of tie-beam are connected, and the other end and the second door leg of tie-beam are connected, can strengthen the structural strength of whole portal crane, guarantee hoist and mount security.
3. The utility model discloses, the walking platform truck adopts the trinity reduction gear of solid rubber tire cooperation, adjusts the wheel rotational speed of the walking platform truck of girder both sides through trinity reduction gear frequency conversion, the difference of wheel speed to make the portal crane realize the turn function, can walk on multiple road surface, the practicality is strong.
4. The utility model discloses, set up balanced hydro-cylinder on the platform truck chassis, when the walking platform truck walked on unevenness's road surface, can guarantee that whole portal crane walking is more smooth-going.
5. The utility model discloses, trinity reduction gear is located the front end on platform truck chassis, and balanced hydro-cylinder is located the rear end on platform truck chassis, and this kind of arrangement is favorable to making the whole focus of gravity of whole walking platform truck balanced, does benefit to guarantee walking platform truck walking stability.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments, wherein:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a left side view of the present invention;
fig. 3 is a right side view of the present invention;
the labels in the figure are: 1. a main beam, 2, a first door leg, 3, a second door leg, 4, a first walking trolley, 5, a second walking trolley, 6, a first overturning cylinder, 7, a second overturning cylinder, 8, a first lifting cylinder, 9, a second lifting cylinder, 10, a first guide pulley, 11, a second guide pulley, 12, a first rope, 13, a second rope, 14, a connecting beam, 15, a first solid rubber tire, 16, a first wheel axle, 17, a first reducer, 18, a first main chain wheel, 19, a first chain, 20, a first auxiliary chain wheel, 21, a first trolley chassis, 22, a first trolley frame, 23, a second solid rubber tire, 24, a second wheel axle, 25, a second reducer, 26, a second main chain wheel, 27, a second chain, 28, a second auxiliary chain wheel, 29, a second trolley chassis, 30, a second trolley frame, 31, a first balancing cylinder, 32. and the second balancing oil cylinder.
Detailed Description
Example 1
Referring to fig. 1-3, a self-propelled hydraulic lifting gantry crane comprises a main beam 1, a first door leg 2, a second door leg 3, a first traveling trolley 4 and a second traveling trolley 5, wherein one end of the main beam 1 is fixedly connected with the first door leg 2, the other end is fixedly connected with the second door leg 3, the self-propelled hydraulic lifting gantry crane further comprises a first overturning oil cylinder 6 and a second overturning oil cylinder 7, the first door leg 2 is in pin joint with the first traveling trolley 4, the second door leg 3 is in pin joint with the second traveling trolley 5, one end of the first overturning oil cylinder 6 is in pin joint with the first traveling trolley 4, the other end is in pin joint with the bottom of the first door leg 2, one end of the second overturning oil cylinder 7 is in pin joint with the second traveling trolley 5, the other end is in pin joint with the bottom of the second door leg 3, the top of the first door leg 2 is fixedly connected with a first lifting oil cylinder 8, the top of the second door leg 3 is fixedly connected with a second lifting oil cylinder 9, a first guide pulley 10 and a second guide pulley 11 are fixed in the middle of the main beam 1, a first rope 12 is connected to the first guide pulley 10 in a winding mode, the first rope 12 is connected with the first lifting oil cylinder 8, a second rope 13 is connected to the second guide pulley 11 in a winding mode, and the second rope 13 is connected with the second lifting oil cylinder 9.
This embodiment is the most basic embodiment, and a conventional traveling carriage is sufficient. "the first door leg 2 is pin-jointed with the first walking trolley 4, the second door leg 3 is pin-jointed with the second walking trolley 5, one end of the first turning cylinder 6 is pin-jointed with the first walking trolley 4, the other end is pin-jointed with the bottom of the first door leg 2, one end of the second turning cylinder 7 is pin-jointed with the second walking trolley 5, the other end is pin-jointed with the bottom of the second door leg 3, the top of the first door leg 2 is fixedly connected with the first lifting cylinder 8, the top of the second door leg 3 is fixedly connected with the second lifting cylinder 9, the middle part of the main beam 1 is fixedly provided with the first guide pulley 10 and the second guide pulley 11, the first guide pulley 10 is wound with the first rope 12, the first rope 12 is connected with the first lifting cylinder 8, the second guide pulley 11 is wound with the second rope 13, the second rope 13 is connected with the second lifting cylinder 9", compared with the prior art, the gantry crane is integrally in an assembly type structure, simple structure does benefit to the on-the-spot installation, makes the portal frame that gate leg and girder 1 formed wholly collapsible through the upset hydro-cylinder, makes the portal frame height reduce, and the transportation and the transport of being convenient for make the hoist and mount mode of heavy object more nimble through leading pulley, satisfy different operating mode operations.
Example 2
Referring to fig. 1-3, a self-propelled hydraulic lifting gantry crane comprises a main beam 1, a first door leg 2, a second door leg 3, a first traveling trolley 4 and a second traveling trolley 5, wherein one end of the main beam 1 is fixedly connected with the first door leg 2, the other end is fixedly connected with the second door leg 3, the self-propelled hydraulic lifting gantry crane further comprises a first overturning oil cylinder 6 and a second overturning oil cylinder 7, the first door leg 2 is in pin joint with the first traveling trolley 4, the second door leg 3 is in pin joint with the second traveling trolley 5, one end of the first overturning oil cylinder 6 is in pin joint with the first traveling trolley 4, the other end is in pin joint with the bottom of the first door leg 2, one end of the second overturning oil cylinder 7 is in pin joint with the second traveling trolley 5, the other end is in pin joint with the bottom of the second door leg 3, the top of the first door leg 2 is fixedly connected with a first lifting oil cylinder 8, the top of the second door leg 3 is fixedly connected with a second lifting oil cylinder 9, a first guide pulley 10 and a second guide pulley 11 are fixed in the middle of the main beam 1, a first rope 12 is connected to the first guide pulley 10 in a winding mode, the first rope 12 is connected with the first lifting oil cylinder 8, a second rope 13 is connected to the second guide pulley 11 in a winding mode, and the second rope 13 is connected with the second lifting oil cylinder 9.
A connecting beam 14 is arranged between the first door leg 2 and the second door leg 3, one end of the connecting beam 14 is connected with the first door leg 2, and the other end of the connecting beam 14 is connected with the second door leg 3.
This embodiment is a preferred implementation mode, is provided with tie-beam 14 between first door leg 2 and the second door leg 3, and the one end and the first door leg 2 of tie-beam 14 are connected, and the other end and the second door leg 3 of tie-beam 14 are connected, can strengthen the structural strength of whole portal crane, guarantee hoist and mount security.
Example 3
Referring to fig. 1-3, a self-propelled hydraulic lifting gantry crane comprises a main beam 1, a first door leg 2, a second door leg 3, a first traveling trolley 4 and a second traveling trolley 5, wherein one end of the main beam 1 is fixedly connected with the first door leg 2, the other end is fixedly connected with the second door leg 3, the self-propelled hydraulic lifting gantry crane further comprises a first overturning oil cylinder 6 and a second overturning oil cylinder 7, the first door leg 2 is in pin joint with the first traveling trolley 4, the second door leg 3 is in pin joint with the second traveling trolley 5, one end of the first overturning oil cylinder 6 is in pin joint with the first traveling trolley 4, the other end is in pin joint with the bottom of the first door leg 2, one end of the second overturning oil cylinder 7 is in pin joint with the second traveling trolley 5, the other end is in pin joint with the bottom of the second door leg 3, the top of the first door leg 2 is fixedly connected with a first lifting oil cylinder 8, the top of the second door leg 3 is fixedly connected with a second lifting oil cylinder 9, a first guide pulley 10 and a second guide pulley 11 are fixed in the middle of the main beam 1, a first rope 12 is connected to the first guide pulley 10 in a winding mode, the first rope 12 is connected with the first lifting oil cylinder 8, a second rope 13 is connected to the second guide pulley 11 in a winding mode, and the second rope 13 is connected with the second lifting oil cylinder 9.
A connecting beam 14 is arranged between the first door leg 2 and the second door leg 3, one end of the connecting beam 14 is connected with the first door leg 2, and the other end of the connecting beam 14 is connected with the second door leg 3.
First walking platform truck 4 includes first solid rubber tire 15, first wheel axle 16, first trinity reduction gear 17, first main chain wheel 18, first chain 19, first auxiliary chain wheel 20, first platform truck chassis 21 and fix the first platform truck frame 22 on first platform truck chassis 21, first auxiliary chain wheel 20 is installed on first wheel axle 16, first trinity reduction gear 17 is fixed on first platform truck chassis 21, first solid rubber tire 15 is installed on first platform truck chassis 21 through first wheel axle 16, the output and the first main chain wheel 18 of first trinity reduction gear 17 are connected, first auxiliary chain wheel 20 is connected with first main chain wheel 18 through first chain 19.
The second walking trolley 5 comprises a second solid rubber tire 23, a second wheel shaft 24, a second three-in-one speed reducer 25, a second main chain wheel 26, a second chain 27, a second auxiliary chain wheel 28, a second trolley chassis 29 and a second trolley frame 30 fixed on the second trolley chassis 29, the second auxiliary chain wheel 28 is installed on the second wheel shaft 24, the second three-in-one speed reducer 25 is fixed on the second trolley chassis 29, the second solid rubber tire 23 is installed on the second trolley chassis 29 through the second wheel shaft 24, the output end of the second three-in-one speed reducer 25 is connected with the second main chain wheel 26, and the second auxiliary chain wheel 28 is connected with the second main chain wheel 26 through the second chain 27.
This embodiment is still another preferred implementation, and the walking platform truck adopts the trinity reduction gear of solid rubber tire cooperation, adjusts the wheel rotational speed of the walking platform truck of girder 1 both sides through trinity reduction gear frequency conversion, the difference of wheel speed to make the portal crane realize the function of turning, can walk on multiple road surface, the practicality is strong.
Example 4
Referring to fig. 1-3, a self-propelled hydraulic lifting gantry crane comprises a main beam 1, a first door leg 2, a second door leg 3, a first traveling trolley 4 and a second traveling trolley 5, wherein one end of the main beam 1 is fixedly connected with the first door leg 2, the other end is fixedly connected with the second door leg 3, the self-propelled hydraulic lifting gantry crane further comprises a first overturning oil cylinder 6 and a second overturning oil cylinder 7, the first door leg 2 is in pin joint with the first traveling trolley 4, the second door leg 3 is in pin joint with the second traveling trolley 5, one end of the first overturning oil cylinder 6 is in pin joint with the first traveling trolley 4, the other end is in pin joint with the bottom of the first door leg 2, one end of the second overturning oil cylinder 7 is in pin joint with the second traveling trolley 5, the other end is in pin joint with the bottom of the second door leg 3, the top of the first door leg 2 is fixedly connected with a first lifting oil cylinder 8, the top of the second door leg 3 is fixedly connected with a second lifting oil cylinder 9, a first guide pulley 10 and a second guide pulley 11 are fixed in the middle of the main beam 1, a first rope 12 is connected to the first guide pulley 10 in a winding mode, the first rope 12 is connected with the first lifting oil cylinder 8, a second rope 13 is connected to the second guide pulley 11 in a winding mode, and the second rope 13 is connected with the second lifting oil cylinder 9.
A connecting beam 14 is arranged between the first door leg 2 and the second door leg 3, one end of the connecting beam 14 is connected with the first door leg 2, and the other end of the connecting beam 14 is connected with the second door leg 3.
First walking platform truck 4 includes first solid rubber tire 15, first wheel axle 16, first trinity reduction gear 17, first main chain wheel 18, first chain 19, first auxiliary chain wheel 20, first platform truck chassis 21 and fix the first platform truck frame 22 on first platform truck chassis 21, first auxiliary chain wheel 20 is installed on first wheel axle 16, first trinity reduction gear 17 is fixed on first platform truck chassis 21, first solid rubber tire 15 is installed on first platform truck chassis 21 through first wheel axle 16, the output and the first main chain wheel 18 of first trinity reduction gear 17 are connected, first auxiliary chain wheel 20 is connected with first main chain wheel 18 through first chain 19.
The second walking trolley 5 comprises a second solid rubber tire 23, a second wheel shaft 24, a second three-in-one speed reducer 25, a second main chain wheel 26, a second chain 27, a second auxiliary chain wheel 28, a second trolley chassis 29 and a second trolley frame 30 fixed on the second trolley chassis 29, the second auxiliary chain wheel 28 is installed on the second wheel shaft 24, the second three-in-one speed reducer 25 is fixed on the second trolley chassis 29, the second solid rubber tire 23 is installed on the second trolley chassis 29 through the second wheel shaft 24, the output end of the second three-in-one speed reducer 25 is connected with the second main chain wheel 26, and the second auxiliary chain wheel 28 is connected with the second main chain wheel 26 through the second chain 27.
A first balance oil cylinder 31 is arranged on the first trolley chassis 21, one end of the first balance oil cylinder 31 is connected with the first trolley frame 22, and the other end of the first balance oil cylinder 31 is connected with the first trolley chassis 21.
A second equalizing oil cylinder 32 is arranged on the second trolley chassis 29, one end of the second equalizing oil cylinder 32 is connected with the second trolley frame 30, and the other end of the second equalizing oil cylinder 32 is connected with the second trolley chassis 29.
In another preferred embodiment, the balance oil cylinder is arranged on the chassis of the trolley, so that when the walking trolley walks on an uneven road surface, the whole gantry crane can be guaranteed to walk more smoothly.
Example 5
Referring to fig. 1-3, a self-propelled hydraulic lifting gantry crane comprises a main beam 1, a first door leg 2, a second door leg 3, a first traveling trolley 4 and a second traveling trolley 5, wherein one end of the main beam 1 is fixedly connected with the first door leg 2, the other end is fixedly connected with the second door leg 3, the self-propelled hydraulic lifting gantry crane further comprises a first overturning oil cylinder 6 and a second overturning oil cylinder 7, the first door leg 2 is in pin joint with the first traveling trolley 4, the second door leg 3 is in pin joint with the second traveling trolley 5, one end of the first overturning oil cylinder 6 is in pin joint with the first traveling trolley 4, the other end is in pin joint with the bottom of the first door leg 2, one end of the second overturning oil cylinder 7 is in pin joint with the second traveling trolley 5, the other end is in pin joint with the bottom of the second door leg 3, the top of the first door leg 2 is fixedly connected with a first lifting oil cylinder 8, the top of the second door leg 3 is fixedly connected with a second lifting oil cylinder 9, a first guide pulley 10 and a second guide pulley 11 are fixed in the middle of the main beam 1, a first rope 12 is connected to the first guide pulley 10 in a winding mode, the first rope 12 is connected with the first lifting oil cylinder 8, a second rope 13 is connected to the second guide pulley 11 in a winding mode, and the second rope 13 is connected with the second lifting oil cylinder 9.
A connecting beam 14 is arranged between the first door leg 2 and the second door leg 3, one end of the connecting beam 14 is connected with the first door leg 2, and the other end of the connecting beam 14 is connected with the second door leg 3.
First walking platform truck 4 includes first solid rubber tire 15, first wheel axle 16, first trinity reduction gear 17, first main chain wheel 18, first chain 19, first auxiliary chain wheel 20, first platform truck chassis 21 and fix the first platform truck frame 22 on first platform truck chassis 21, first auxiliary chain wheel 20 is installed on first wheel axle 16, first trinity reduction gear 17 is fixed on first platform truck chassis 21, first solid rubber tire 15 is installed on first platform truck chassis 21 through first wheel axle 16, the output and the first main chain wheel 18 of first trinity reduction gear 17 are connected, first auxiliary chain wheel 20 is connected with first main chain wheel 18 through first chain 19.
The second walking trolley 5 comprises a second solid rubber tire 23, a second wheel shaft 24, a second three-in-one speed reducer 25, a second main chain wheel 26, a second chain 27, a second auxiliary chain wheel 28, a second trolley chassis 29 and a second trolley frame 30 fixed on the second trolley chassis 29, the second auxiliary chain wheel 28 is installed on the second wheel shaft 24, the second three-in-one speed reducer 25 is fixed on the second trolley chassis 29, the second solid rubber tire 23 is installed on the second trolley chassis 29 through the second wheel shaft 24, the output end of the second three-in-one speed reducer 25 is connected with the second main chain wheel 26, and the second auxiliary chain wheel 28 is connected with the second main chain wheel 26 through the second chain 27.
A first balance oil cylinder 31 is arranged on the first trolley chassis 21, one end of the first balance oil cylinder 31 is connected with the first trolley frame 22, and the other end of the first balance oil cylinder 31 is connected with the first trolley chassis 21.
A second equalizing oil cylinder 32 is arranged on the second trolley chassis 29, one end of the second equalizing oil cylinder 32 is connected with the second trolley frame 30, and the other end of the second equalizing oil cylinder 32 is connected with the second trolley chassis 29.
First trinity reduction gear 17 is located the front end of first platform truck chassis 21, and first balanced hydro-cylinder 31 is located the rear end of first platform truck chassis 21.
The third three-in-one speed reducer 25 is positioned at the front end of the second trolley chassis 29, and the second equalizing cylinder 32 is positioned at the rear end of the second trolley chassis 29.
This embodiment is best implementation mode, and trinity reduction gear is located the front end on platform truck chassis, and balanced hydro-cylinder is located the rear end on platform truck chassis, and this kind of arrangement is favorable to making the whole centre of gravity of walking platform truck balanced, does benefit to the guarantee walking platform truck walking stability.
Claims (8)
1. The utility model provides a self-propelled hydraulic lifting portal crane, includes girder (1), first door leg (2), second door leg (3), first walking platform truck (4) and second walking platform truck (5), the one end and first door leg (2) fixed connection of girder (1), the other end and second door leg (3) fixed connection, its characterized in that: the lifting device is characterized by further comprising a first overturning oil cylinder (6) and a second overturning oil cylinder (7), wherein the first door leg (2) is in pin joint with the first walking trolley (4), the second door leg (3) is in pin joint with the second walking trolley (5), one end of the first overturning oil cylinder (6) is in pin joint with the first walking trolley (4), the other end of the first overturning oil cylinder is in pin joint with the bottom of the first door leg (2), one end of the second overturning oil cylinder (7) is in pin joint with the second walking trolley (5), the other end of the second overturning oil cylinder is in pin joint with the bottom of the second door leg (3), the top of the first door leg (2) is fixedly connected with a first lifting oil cylinder (8), the top of the second door leg (3) is fixedly connected with a second lifting oil cylinder (9), a first guide pulley (10) and a second guide pulley (11) are fixed in the middle of the main beam (1), a first rope (12) is wound on the first guide pulley (10), and the first rope (12) is connected with the first lifting oil cylinder (8), a second rope (13) is wound on the second guide pulley (11), and the second rope (13) is connected with the second lifting oil cylinder (9).
2. The self-propelled hydraulic lifting gantry crane according to claim 1, wherein: a connecting beam (14) is arranged between the first door leg (2) and the second door leg (3), one end of the connecting beam (14) is connected with the first door leg (2), and the other end of the connecting beam (14) is connected with the second door leg (3).
3. The self-propelled hydraulic lifting gantry crane according to claim 1, wherein: first walking platform truck (4) include first solid rubber tire (15), first wheel axle (16), first trinity reduction gear (17), first main chain wheel (18), first chain (19), first auxiliary chain wheel (20), first platform truck chassis (21) and fix first platform truck frame (22) on first platform truck chassis (21), first auxiliary chain wheel (20) are installed on first wheel axle (16), first trinity reduction gear (17) are fixed on first platform truck chassis (21), first solid rubber tire (15) are installed on first platform truck chassis (21) through first wheel axle (16), the output and the first main chain wheel (18) of first trinity reduction gear (17) are connected, first auxiliary chain wheel (20) are connected with first main chain wheel (18) through first chain (19).
4. The self-propelled hydraulic lifting gantry crane according to claim 1, wherein: the second walking trolley (5) comprises a second solid rubber tire (23), a second wheel shaft (24), a second three-in-one speed reducer (25), a second main chain wheel (26), a second chain (27), a second auxiliary chain wheel (28), a second trolley chassis (29) and a second trolley frame (30) fixed on the second trolley chassis (29), the second auxiliary chain wheel (28) is installed on the second wheel shaft (24), the second three-in-one speed reducer (25) is fixed on the second trolley chassis (29), the second solid rubber tire (23) is installed on the second trolley chassis (29) through the second wheel shaft (24), the output end of the second three-in-one speed reducer (25) is connected with the second main chain wheel (26), and the second auxiliary chain wheel (28) is connected with the second main chain wheel (26) through the second chain (27).
5. The self-propelled hydraulic lifting gantry crane according to claim 3, wherein: a first balance oil cylinder (31) is arranged on the first trolley chassis (21), one end of the first balance oil cylinder (31) is connected with the first trolley frame (22), and the other end of the first balance oil cylinder (31) is connected with the first trolley chassis (21).
6. The self-propelled hydraulic lifting gantry crane according to claim 4, wherein: a second balance oil cylinder (32) is arranged on the second trolley chassis (29), one end of the second balance oil cylinder (32) is connected with the second trolley frame (30), and the other end of the second balance oil cylinder (32) is connected with the second trolley chassis (29).
7. The self-propelled hydraulic lifting gantry crane according to claim 5, wherein: first trinity reduction gear (17) are located the front end of first platform truck chassis (21), and first balanced hydro-cylinder (31) are located the rear end of first platform truck chassis (21).
8. The self-propelled hydraulic lifting gantry crane according to claim 6, wherein: the trinity reduction gear of second (25) is located the front end of second platform truck chassis (29), and second balancing cylinder (32) are located the rear end of second platform truck chassis (29).
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| CN202021981508.1U CN213037273U (en) | 2020-09-11 | 2020-09-11 | Self-propelled hydraulic lifting gantry crane |
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| CN202021981508.1U CN213037273U (en) | 2020-09-11 | 2020-09-11 | Self-propelled hydraulic lifting gantry crane |
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