CN211733765U - External portal of heavy-duty forklift free cylinder - Google Patents
External portal of heavy-duty forklift free cylinder Download PDFInfo
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- CN211733765U CN211733765U CN202020136122.4U CN202020136122U CN211733765U CN 211733765 U CN211733765 U CN 211733765U CN 202020136122 U CN202020136122 U CN 202020136122U CN 211733765 U CN211733765 U CN 211733765U
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- gantry
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Abstract
The utility model relates to an external portal of fork truck free cylinder reloads, it includes a plurality of nested portal units that slide, outermost portal unit is outer portal, and the portal unit within the outer portal is interior portal, sliding connection has the fork frame on the portal including, the both sides of the interior portal that are connected with the fork frame are equipped with the connecting piece, the connecting piece extends to outer portal both sides and does not interfere with outer portal, be fixed with free cylinder on the connecting piece, be fixed with the sprocket support on free cylinder's piston rod, it is connected with the fork sprocket to rotate on the sprocket support, be equipped with the chain on the fork sprocket, connecting piece and fork frame are fixed in respectively at the chain both ends, be equipped with the drive assembly who is used for driving the interior portal lifting on outer portal. The utility model discloses have the effect that makes the free hydro-cylinder be difficult for blockking driver's sight.
Description
Technical Field
The utility model belongs to the technical field of the technique of fork truck portal and specifically relates to an external portal of heavy-duty fork truck free cylinder is related to.
Background
At present, the forklift is widely applied to ports, stations, airports, goods yards, factory workshops, warehouses, distribution centers and the like, carries out loading, unloading and carrying operations of pallet goods in cabins, carriages and containers, and is indispensable equipment in pallet transportation and container transportation. The portal is the main bearing structure of the front end fetching device of the forklift.
The existing forklift gantry comprises an outer gantry body and an inner gantry body, wherein the inner gantry body is connected to the outer gantry body in a sliding mode, a fork frame is connected to the inner gantry body in a sliding mode, a free oil cylinder is fixed in the inner gantry body, a chain wheel support is fixed on a piston rod of the free oil cylinder, a fork chain wheel is connected to the chain wheel support in a rotating mode, a chain is arranged on the fork chain wheel, two ends of the chain are fixed to the inner gantry body and the fork frame respectively, and a driving assembly used for driving the inner gantry body to lift is arranged on the.
The above prior art solutions have the following drawbacks: the free oil cylinder is fixed on the inner side of the inner door frame, so that the sight of a driver is easily shielded, and an accident is easily caused during operation.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide an external portal of heavy-duty fork truck free cylinder has the effect that makes the free cylinder be difficult for blockking the driver's sight.
The above object of the present invention can be achieved by the following technical solutions:
the utility model provides an external portal of reloading fork truck free cylinder, including a plurality of nested portal units that slide, outermost portal unit is outer portal, and the portal unit within the outer portal is interior portal, sliding connection has the fork frame on the portal including, both sides at the interior portal that is connected with the fork frame are equipped with the connecting piece, the connecting piece extends to outer portal both sides and does not interfere with outer portal, be fixed with free cylinder on the connecting piece, be fixed with the sprocket support on free cylinder's piston rod, it is connected with the fork sprocket to rotate on the sprocket support, be equipped with the chain on the fork sprocket, connecting piece and fork frame are fixed in respectively at the chain both ends, be equipped with the drive assembly who is used for driving the lifting of inner portal on the outer portal.
Through adopting above-mentioned technical scheme, make the free hydro-cylinder be fixed in the outside of outer portal through the connecting piece, saved the inner space in the centre of inner portal to make driver's realization wider, make driver more conveniently drive, improved the security of fork truck operation.
And the free oil cylinder is arranged on the outer side of the outer gantry, so that the rear part of the free oil cylinder has a larger installation space, the oil cylinder can be placed backwards, the space in front is not occupied, and the front suspension of the forklift can be kept unchanged.
And because the periphery of the free oil cylinder arranged on the outer side has larger space, the shared pipeline is more convenient to install, and the convenient assembly and maintenance of the free oil cylinder can be enlarged.
The present invention may be further configured in a preferred embodiment as: the sliding connection part between the portal units is provided with a sliding cavity, the sliding cavity is internally provided with an inner roller and an outer roller, the inner roller is rotatably connected to the lower end of the portal unit close to the inner part, the outer roller is rotatably connected to the upper end of the portal unit close to the outer part, the inner roller and the outer roller are both abutted against the inner wall of the sliding cavity, and the rotating plane where the inner roller and the outer roller are located is perpendicular to the sliding plane where the inner portal is located.
Through adopting above-mentioned technical scheme, make the sliding connection between the portal unit more smooth and easy, become rolling friction with sliding friction, reduce the friction energy consumption. And interior gyro wheel and outer gyro wheel all with the inner wall butt in slip chamber, make it carry on spacingly to it on the slip direction of portal in the perpendicular to, make it keep the straight line to slide, prevent that the offset of perpendicular to slip plane from appearing in the interior portal of slip process.
The present invention may be further configured in a preferred embodiment as: the inner longitudinal wheel and the outer longitudinal wheel are arranged in the sliding cavity, the inner longitudinal wheel is connected to the lower end of the door frame unit close to the inner side in a rotating mode, the outer longitudinal wheel is connected to the upper end of the door frame unit close to the outer side in a rotating mode, the inner longitudinal wheel and the outer longitudinal wheel are connected to the inner wall of the sliding cavity in an abutting mode, the rotating plane where the inner longitudinal wheel and the outer longitudinal wheel are located is parallel to the sliding plane where the inner door frame is located, an inner wheel groove is formed in the door frame unit close to the inner side, the round edge of the inner longitudinal wheel is embedded into the inner wheel groove, an outer wheel groove is formed in the door frame unit close to the outer side, and the round edge of.
By adopting the technical scheme, the inner longitudinal wheel and the outer longitudinal wheel are respectively arranged on the inner side portal unit and the outer side portal unit, and the inner longitudinal wheel and the outer longitudinal wheel are respectively abutted against the inner wall of the sliding cavity, so that the inner portal frame can be prevented from being parallel to the sliding plane of the inner portal frame in the sliding process. And the inner gantry is matched with the inner roller and the outer roller to ensure that the inner gantry slides along a straight line. The inner wheel groove and the outer wheel groove can accommodate redundant round edges of the inner longitudinal wheel and the outer longitudinal wheel, and the size of a sliding cavity required for mounting the inner longitudinal wheel and the outer longitudinal wheel can be reduced as much as possible on the premise that the sizes of the inner longitudinal wheel and the outer longitudinal wheel are not reduced.
The present invention may be further configured in a preferred embodiment as: the driving assembly comprises two fixing oil cylinders which are respectively fixed on two sides of the outer gantry, fixing pieces are fixed on two sides of the outer gantry, U-shaped bolts are sleeved on the fixing oil cylinders, and two ends of each U-shaped bolt are fixed on the fixing pieces.
Through adopting above-mentioned technical scheme, the U-shaped bolt can be fixed the fixed hydro-cylinder, strengthens the structural strength of fixed hydro-cylinder, makes drive assembly more stable.
The present invention may be further configured in a preferred embodiment as: the free oil cylinder is fixed with a reinforcing piece, one side of the reinforcing piece, which faces the chain wheel support, is provided with a limiting groove, and the side wall of the chain wheel support is arranged in the limiting groove and is in sliding connection with the limiting groove.
By adopting the technical scheme, the chain wheel support is fixed on the piston rod of the free oil cylinder, and the free oil cylinder and the piston rod thereof do not have circumferential limit relation. Therefore, under the limiting action of the reinforcing piece and the limiting groove, the chain wheel support and the chain are always in the same plane, and the normal lifting of the fork frame is ensured
The present invention may be further configured in a preferred embodiment as: the outer side wall of the outer gantry is fixed with a fixing ring for fixing the oil pipe.
Through adopting above-mentioned technical scheme, solid fixed ring can accomodate and fix free cylinder and actuating system's oil pipe, prevents oil pipe's winding. The oil pipes are fixed in a unified mode, and the overall attractiveness is improved.
The present invention may be further configured in a preferred embodiment as: the bottom of including portal and outer portal is equipped with internal connection board and outer joint plate respectively, and the both ends of internal connection board are fixed with the both sides of interior portal, and the both ends of outer joint plate are fixed with the both sides of outer portal.
Through adopting above-mentioned technical scheme, through internal connection board and external connection board, can make the connection between interior portal and the outer portal both sides more stable, improve the structural strength of interior portal and outer portal.
The present invention may be further configured in a preferred embodiment as: the lower end of the inner connecting plate is arranged as a concave cambered surface.
Through adopting above-mentioned technical scheme, including the in-process that the portal rises, because interior connecting plate can follow the interior portal and rise, and the cambered surface setting of indent can make it when keeping higher structural strength, can reduce again as far as sheltering from driver's sight, reserves more visual spaces for in the middle of the interior portal.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the free oil cylinders are arranged on two sides of the outer door frame, so that the space inside the inner door frame is improved, and the shielding of the sight of a driver is reduced;
2. the inner gantry slides stably, can keep linear sliding and is not easy to deviate;
3. the chain wheel support has stable structure and is not easy to deflect circumferentially;
4. the connection between the two sides of the gantry unit is stable.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an exploded schematic view of an embodiment;
FIG. 3 is a schematic structural view of the outer gantry;
FIG. 4 is a schematic structural view of the first inner gantry;
fig. 5 is a structural schematic diagram of the second inner gantry.
In the figure, 10, a gantry unit; 11. an outer gantry; 111. an outer connecting plate; 12. an inner gantry; 121. a first inner gantry; 122. a second inner gantry; 123. an inner connection plate; 13. erecting; 14. a cross frame; 20. a fork carriage; 21. a pallet fork; 30. a connecting member; 31. a free oil cylinder; 32. a sprocket support; 33. a fork sprocket; 40. a chain; 50. a drive assembly; 51. fixing the oil cylinder; 52. a gantry sprocket; 53. a gantry sprocket seat; 60. a sliding cavity; 61. an inner roller; 62. an outer roller; 63. an inner longitudinal wheel; 64. an outer longitudinal wheel; 65. an inner wheel groove; 66. an outer race; 70. a fixing member; 71. a U-shaped bolt; 80. a reinforcement; 90. And (4) fixing the ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Refer to fig. 1 and 2, do the utility model discloses a heavily adorn external portal of fork truck free cylinder, and be a tertiary fork truck portal. The forklift truck comprises three sliding nested gantry units 10, the outermost gantry unit 10 is an outer gantry 11, two gantry units 10 inside the outer gantry 11 are inner gantries 12, the inner gantries 12 are a first inner gantry 121 and a second inner gantry 122 from outside to inside in sequence, a fork frame 20 is connected onto the second inner gantry 122 in a sliding mode, forks 21 for dragging and holding goods are arranged on the fork frame 20, and a driving assembly 50 for driving the inner gantries 12 to lift is arranged on the outer gantry 11. The elevation of the mast unit 10 is controlled by the driving assembly 50 after the fork carriage 20 is forked up, thereby adjusting the height of the fork carriage 20 for the purpose of lifting the goods.
Referring to fig. 2, the outer mast 11, the first inner mast 121 and the second inner mast 122 each include two vertical frames 13 and a cross frame 14 for fixing the two vertical frames 13, and the outer mast 11 and the vertical frame 13 of the first inner mast 121, the first inner mast 121 and the vertical frame 13 of the second inner mast 122, and the second inner mast 122 and the fork carriage 20 are slidably connected in a nested manner along the length direction of the vertical frames 13.
Referring to fig. 1 and 5, the link 30 is provided at both sides of the second inner mast 122, the link 30 extends to both sides of the outer mast 11 without interfering with the outer mast 11, the free cylinder 31 is fixed to the link 30, and the sprocket support 32 is fixed to the piston rod of the free cylinder 31. The chain wheel support 32 comprises a base fixed on the free oil cylinder 31, side plates are fixed on two sides of the base, a pallet fork chain wheel 33 is rotatably connected between the side plates, a chain 40 is arranged on the pallet fork chain wheel 33, and two ends of the chain 40 are respectively fixed on the connecting piece 30 and the pallet fork frame 20. A movable pulley is formed between the fork chain wheel 33 and the chain 40, and when the free cylinder 31 drives the chain support 32 to ascend, the fork chain wheel 33 drives the free end of the chain 40, namely, the end connected to the fork frame 20 to ascend, thereby driving the fork frame 20 to ascend.
Referring to fig. 3 and 4, the driving assembly 50 includes two fixing cylinders 51, two gantry sprockets 52 and two gantry sprocket seats 53, the fixing cylinders 51 are fixed to the cross frame 14 at the lower end of the outer gantry 11, the gantry sprocket seats 53 are fixed to the cross frame 14 at the upper end of the first inner gantry 121, the gantry sprockets 52 are rotatably connected to the gantry sprocket seats 53, and piston rods of the fixing cylinders 51 are fixed to the gantry sprocket seats 53. The chain 40 is arranged on the gantry sprocket 52, and both ends of the chain 40 are respectively fixed on the outer gantry 11 and the first inner gantry 121. Fixing members 70 are fixed to both sides of the outer gantry 11, a U-bolt 71 is fitted over the fixing cylinder 51, and both ends of the U-bolt 71 are fixed to the fixing members 70. The gantry sprocket 52 and the chain 40 also form a model of a movable pulley, when the piston rod of the fixed cylinder 51 is raised, while directly driving the first inner gantry 121 to rise, the second inner gantry 122 can also be driven to rise through the free end of the chain 40, and the second inner gantry 122 is raised twice as fast as the first inner gantry 121. And the U-bolt 71 serves to enhance the structural strength of the fixing cylinder 51.
Referring to fig. 3, 4 and 5, a sliding chamber 60 is provided at a sliding connection portion between the gantry units 10, an inner roller 61 and an outer roller 62 are provided in the sliding chamber 60, the inner roller 61 is rotatably connected to a lower end of the inner gantry unit 10, the outer roller 62 is rotatably connected to an upper end of the outer gantry unit 10, and both the inner roller 61 and the outer roller 62 abut against an inner wall of the sliding chamber 60. The rotation plane of the inner roller 61 and the outer roller 62 is perpendicular to the sliding plane of the inner gantry 12. An inner longitudinal wheel 63 and an outer longitudinal wheel 64 are further arranged in the sliding cavity 60, the inner longitudinal wheel 63 is rotatably connected to the lower end of the door frame unit 10 close to the inner side, the outer longitudinal wheel 64 is rotatably connected to the upper end of the door frame unit 10 close to the outer side, the inner longitudinal wheel 63 and the outer longitudinal wheel 64 are both abutted to the inner wall of the sliding cavity 60, the rotating planes of the inner longitudinal wheel 63 and the outer longitudinal wheel 64 are parallel to the sliding plane of the inner door frame 12, an inner wheel groove 65 is formed in the door frame unit 10 close to the inner side, the round edge of the inner longitudinal wheel 63 is embedded into the inner wheel groove 65, an outer wheel groove 66 is formed in the door frame unit 10 close to the outer side, and the round edge of the outer longitudinal wheel 64 is embedded into the outer wheel groove 66. By means of the inner and outer rollers 61, 62 and the inner and outer longitudinal wheels 63, 64, the portal unit 10 is made to be in rolling connection with each other and the connection is made more stable.
Referring to fig. 1 and 2, a reinforcing member 80 is fixed to the free oil cylinder 31, a limiting groove is formed in one side of the reinforcing member 80 facing the sprocket support 32, and a side wall of the sprocket support 32 is disposed in the limiting groove and slidably connected thereto. A fixing ring 90 for fixing the oil pipe is fixed on the outer side wall of the outer gantry 11. The reinforcing member 80 can circumferentially limit the sprocket support 32, improving its structural strength. The retainer ring 90 can receive and retain the tubing.
Referring to fig. 3 and 4, an inner connecting plate 123 and an outer connecting plate 111 are respectively disposed at the bottom ends of the inner gantry 12 and the outer gantry 11, both ends of the inner connecting plate 123 are fixed to both sides of the inner gantry 12, and both ends of the outer connecting plate 111 are fixed to both sides of the outer gantry 11. The lower end of the inner connecting plate 123 on the first inner gantry 121 is arranged in a concave arc surface. The inner connection plate 123 and the outer connection plate 111 may reinforce the structural strength of the inner gantry 12 and the outer gantry 11, and when the gantry unit 10 reaches the maximum elevation height, the inner connection plate 123 of the first inner gantry 121 may be located within a sight range in front of the driver, so that the lower end of the inner connection plate 123 of the first inner gantry 121 is set to be a concave arc shape, thereby reducing the shielding of the sight line of the driver as much as possible while ensuring the structural strength thereof.
The implementation principle of the embodiment is as follows:
1. in use, the fork 21 is used to fork a load to be carried, and the free cylinder 31 is controlled to lift the fork carriage 20 under the drive of the fork chain wheel 33 and the free end of the chain 40.
2. And through controlling the lifting of the fixed oil cylinder 51, while directly driving the first inner door frame 121 to lift, the second inner door frame 122 can also be driven to lift through the free end of the chain 40, and the lifting speed of the second inner door frame 122 is twice that of the first inner door frame 121.
3. The free oil cylinder 31 is fixed on the outer side of the outer gantry 11 through the connecting piece 30, so that the inner space in the middle of the inner gantry 12 is saved, the realization of a driver is wider, and the safety of the operation of the forklift is improved. The rear part of the free oil cylinder 31 has larger installation space, the oil cylinder can be placed backwards, the space in front is not occupied, and the front suspension of the forklift can be kept unchanged. And because the periphery of the free oil cylinder 31 arranged on the outer side has larger space, the shared pipeline is more convenient to install, and the assembly and maintenance of the free oil cylinder 31 can be increased conveniently.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides an external portal of heavy-duty fork truck free cylinder which characterized in that: comprises a plurality of sliding nested portal units (10), the outermost portal unit (10) is an outer portal (11), the gantry unit (10) inside the outer gantry (11) is an inner gantry (12), the fork frame (20) is connected on the inner gantry (12) in a sliding way, the connecting pieces (30) are arranged on the two sides of the inner gantry (12) connected with the fork frame (20), the connecting pieces (30) extend to the two sides of the outer gantry (11) and do not interfere with the outer gantry (11), a free oil cylinder (31) is fixed on the connecting piece (30), a chain wheel support (32) is fixed on a piston rod of the free oil cylinder (31), a pallet fork chain wheel (33) is rotatably connected on the chain wheel support (32), a chain (40) is arranged on the pallet fork chain wheel (33), two ends of the chain (40) are respectively fixed on the connecting piece (30) and the pallet fork frame (20), and a driving assembly (50) for driving the inner gantry (12) to lift is arranged on the outer gantry (11).
2. The external portal frame of the free cylinder of the heavy-duty forklift as claimed in claim 1, wherein: the sliding connection position between the portal units (10) is provided with a sliding cavity (60), an inner roller (61) and an outer roller (62) are arranged in the sliding cavity (60), the inner roller (61) is rotatably connected to the lower end of the portal unit (10) close to the inner side, the outer roller (62) is rotatably connected to the upper end of the portal unit (10) close to the outer side, the inner roller (61) and the outer roller (62) are abutted to the inner wall of the sliding cavity (60), and the rotating plane where the inner roller (61) and the outer roller (62) are located is perpendicular to the sliding plane where the inner portal (12) is located.
3. The external portal frame of the free cylinder of the heavy-duty forklift as claimed in claim 2, wherein: an inner longitudinal wheel (63) and an outer longitudinal wheel (64) are arranged in the sliding cavity (60), the inner longitudinal wheel (63) is rotatably connected to the lower end of the door frame unit (10) close to the inner side, the outer longitudinal wheel (64) is rotatably connected to the upper end of the door frame unit (10) close to the outer side, the inner longitudinal wheel (63) and the outer longitudinal wheel (64) are both abutted against the inner wall of the sliding cavity (60), the rotating plane where the inner longitudinal wheel (63) and the outer longitudinal wheel (64) are located is parallel to the sliding plane where the inner door frame (12) is located, an inner wheel groove (65) is formed in the door frame unit (10) close to the inner side, the round edge of the inner longitudinal wheel (63) is embedded into the inner wheel groove (65), the outer wheel groove (66) is formed in the door frame unit (10) close to the outer side, and the round edge of the outer longitudinal wheel (64) is embedded into the outer wheel groove.
4. The external portal frame of the free cylinder of the heavy-duty forklift as claimed in claim 1, wherein: the driving assembly (50) comprises two fixed oil cylinders (51), the two fixed oil cylinders (51) are respectively fixed on two sides of the outer gantry (11), fixing pieces (70) are fixed on two sides of the outer gantry (11), U-shaped bolts (71) are sleeved on the fixed oil cylinders (51), and two ends of each U-shaped bolt (71) are fixed on the fixing pieces (70).
5. The external portal frame of the free cylinder of the heavy-duty forklift as claimed in claim 1, wherein: a reinforcing piece (80) is fixed on the free oil cylinder (31), a limiting groove is formed in one side, facing the chain wheel support (32), of the reinforcing piece (80), and the side wall of the chain wheel support (32) is arranged in the limiting groove and is in sliding connection with the limiting groove.
6. The external portal frame of the free cylinder of the heavy-duty forklift as claimed in claim 1, wherein: a fixing ring (90) for fixing the oil pipe is fixed on the outer side wall of the outer gantry (11).
7. The external portal frame of the free cylinder of the heavy-duty forklift as claimed in claim 1, wherein: an inner connecting plate (123) and an outer connecting plate (111) are respectively arranged at the bottom ends of the inner gantry (12) and the outer gantry (11), two ends of the inner connecting plate (123) are fixed with two sides of the inner gantry (12), and two ends of the outer connecting plate (111) are fixed with two sides of the outer gantry (11).
8. The external portal frame of the free cylinder of the heavy-duty forklift as claimed in claim 7, wherein: the lower end of the inner connecting plate (123) is arranged in a concave cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020136122.4U CN211733765U (en) | 2020-01-20 | 2020-01-20 | External portal of heavy-duty forklift free cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020136122.4U CN211733765U (en) | 2020-01-20 | 2020-01-20 | External portal of heavy-duty forklift free cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN211733765U true CN211733765U (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020136122.4U Active CN211733765U (en) | 2020-01-20 | 2020-01-20 | External portal of heavy-duty forklift free cylinder |
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| CN (1) | CN211733765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113072014A (en) * | 2021-04-16 | 2021-07-06 | 杭州叉车门架有限公司 | Forklift portal frame |
-
2020
- 2020-01-20 CN CN202020136122.4U patent/CN211733765U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113072014A (en) * | 2021-04-16 | 2021-07-06 | 杭州叉车门架有限公司 | Forklift portal frame |
| CN113072014B (en) * | 2021-04-16 | 2022-03-25 | 杭州叉车门架有限公司 | Forklift portal frame |
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