Crane special for self-lifting stacking

Abstract

The utility model relates to a special crane for self-lifting stacking, which comprises a gantry system, a layered lifting system and an automatic stacking device, the gantry system is connected with the layered lifting system, the layered lifting system comprises a trolley cross beam frame capable of lifting in a layered manner, and the automatic stacking device is arranged on the trolley cross beam frame. The stacking device is stable in structure and reliable in action, the overall gravity center of the stacking device is lowered through the layered lifting system, the vertical stroke of the lifting mechanism is effectively reduced in a layered mode, and the stacking efficiency is improved; an automatic stacking device is adopted, full coverage of a working area is achieved, objects are taken from a conveying belt, and accurate stacking is achieved; and the stacking precision, the stacking speed and the overall stacking working efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of special cranes for logistics, and particularly relates to a special self-lifting stacking crane for automatically stacking bagged materials. Background Art

[0002] At present, for the stacking of bagged materials (such as bagged rice, edible sugar, edible salt, chemical raw materials, agricultural chemical fertilizers, etc.) during warehousing or transportation loading, transportation equipment is used in cooperation with manual labor for stacking. After the bagged materials are conveyed to the stacking area through the conveying equipment, the state is messy, and manual stacking of each bag is required, which consumes a large amount of time and manpower, has low stacking efficiency, high cost, and safety accidents occur from time to time. Therefore, there is an urgent need to develop a special crane with a self-lifting function to complete the automatic stacking of bagged materials, so as to cooperate with the automatic transmission and stacking of intelligent logistics, improve the stacking speed, and enhance the logistics handling efficiency. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above deficiencies, and provides a special self-lifting stacking crane, which has a stable structure and reliable actions. The use of a hierarchical lifting system reduces the overall center of gravity of the stacking device, effectively reduces the vertical stroke of the lifting mechanism by layering, and improves the stacking efficiency; the use of an automatic stacking device realizes full coverage of the working area, takes objects from the conveyor belt, and accurately stacks them; greatly improves the stacking accuracy, speed, and overall stacking work efficiency.

[0004] The purpose of the utility model is realized as follows:

[0005] A special self-lifting stacking crane includes a gantry system, a hierarchical lifting system, and an automatic stacking device. The gantry system is connected to the hierarchical lifting system. The hierarchical lifting system includes a trolley crossbeam frame that can be lifted and lowered in layers, and an automatic stacking device is provided on the trolley crossbeam frame;

[0006] The hierarchical lifting system includes a hoist lifting mechanism and a trolley crossbeam frame. Four hoist lifting mechanisms are arranged at the four corners of the top of the gantry system, and lifting lugs are provided at the four corners of the trolley crossbeam frame corresponding to the hoist lifting mechanisms;

[0007] The automatic stacking device includes a stacking translation trolley, a longitudinally movable support, a telescopic boom, and a stacking vacuum suction cup. The stacking translation trolley moves horizontally along the stacking trolley crossbeam of the trolley crossbeam frame. A telescopic boom is slidably arranged in the support. A lifting rack is arranged on one side of the telescopic boom, and the lifting rack is driven by a stacking drive motor fixed on the support. A stacking vacuum suction cup for sucking material bags is arranged at the bottom of the telescopic boom.

[0008] Preferably, the gantry system includes a gantry end beam that can move back and forth, gantry legs, a gantry upper cross beam, and a leg upper cross beam. The two gantry end beams are arranged left and right. Each gantry end beam is symmetrically provided with gantry legs in the front and back. The gantry legs are fixed to the gantry end beam by bolts. The tops of the two gantry legs on the same left and right side are connected by the leg upper cross beam, and the tops of the two gantry legs on the same front and back side are connected by the gantry upper cross beam. The leg upper cross beam and the gantry upper cross beam are welded into a gantry crane frame.

[0009] Preferably, the gantry leg includes a gantry column, an inclined support, and a transverse connecting rod. The gantry column is arranged inside the inclined support. The gantry column and the inclined support are connected by the transverse connecting rod. A plurality of transverse connecting rods are equidistantly spaced in the height direction of the gantry column.

[0010] Preferably, the four corners of the trolley cross beam frame are equipped with guide wheel mechanisms. The guide wheel mechanisms are provided with two layers. At the same corner point of each layer, there are two guide wheel mechanisms. The two guide wheel mechanisms are arranged at 90° to each other. The guide wheels of the two guide wheel mechanisms are respectively in contact with the adjacent two sides of the corresponding gantry column.

[0011] Preferably, the trolley cross beam frame is provided with a layer locking mechanism. Four layer locking mechanisms are arranged at the four corners of the trolley cross beam frame. The layer locking mechanism includes a layer fixing base, a guide sleeve, a locking shaft, and a servo electric cylinder. The locking shaft is connected to the servo electric cylinder. The servo electric cylinder is fixed to the trolley cross beam frame through a connecting seat. A plurality of layer fixing bases are equidistantly distributed in the height direction of the gantry leg of the gantry system corresponding to the locking shaft. One end of the servo electric cylinder is hinged to the connecting seat, and the other end is hinged to the locking shaft. The locking shaft is sleeved with a guide sleeve, and the guide sleeve is welded to the trolley cross beam frame.

[0012] Preferably, the trolley cross beam frame is equipped with a trolley cross beam walkway. The trolley cross beam walkway is connected to the trolley cross beam frame through a support seat. An electrical control box assembly is provided on the trolley cross beam walkway. The conveying equipment is lifted and lowered synchronously with the trolley cross beam frame. The conveying equipment conveys the bagged materials to the trolley cross beam walkway for the stacking vacuum suction cups of the automatic palletizing device to suck the bagged materials.

[0013] Preferably, the vertical linear bearing guide rail pair on one side of the telescopic boom is fixed to the support through a support plate, and the vertical linear bearing guide rail pair on the other side is fixed to the adjusting plate. The adjusting plate is fixed to the corresponding support plate through a locking bolt. The adjusting bolt passes through the corresponding support plate and abuts against the adjusting plate, and the adjusting plate is tightened by the adjusting bolt.

[0014] Preferably, the stacking transfer trolley is connected to the support through a longitudinal translation mechanism. The longitudinal translation mechanism includes a longitudinal sliding seat, a longitudinal rack, and a longitudinal driving motor. The longitudinal sliding seat is fixed on the stacking transfer trolley. A longitudinal rack is provided on the longitudinal sliding seat, and the longitudinal rack is driven by the longitudinal driving motor.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The gantry system realizes the effective combination of the gantry crane and the transmission equipment, providing structural support for automated transfer handling and intelligent stacking;

[0017] The hierarchical lifting system reduces the overall center of gravity of the palletizing device. The effective layering reduces the vertical stroke of the lifting mechanism and improves the stacking efficiency;

[0018] The automatic palletizing device achieves full coverage of the working area, picks up objects from the conveyor belt, and accurately palletizes them; greatly improving the stacking accuracy, speed, and overall stacking work efficiency;

[0019] The self-lifting function and the special crane for automatically palletizing bagged materials provide convenience for realizing automated transfer handling and intelligent stacking; it is applicable to the automated transmission and stacking of intelligent logistics, improving the stacking speed and enhancing the logistics handling efficiency. Description of the Drawings

[0020] Figure 1 It is a structural schematic diagram of a self-lifting stacking special crane of the present utility model.

[0021] Figure 2 It is Figure 1 a side view of

[0022] Figure 3 It is a structural schematic diagram of the hierarchical lifting system.

[0023] Figure 4 It is an assembly schematic diagram of the trolley crossbeam frame and the gantry leg.

[0024] Figure 5 It is a structural schematic diagram of the automatic palletizing device.

[0025] Figure 6 It is Figure 5 a side view of

[0026] Figure 7 It is an assembly schematic diagram of the support and the telescopic boom.

[0027] Among them:

[0028] Gantry system 1; gantry end beam 1.1; gantry leg 1.2; gantry column 1.2.1; diagonal brace 1.2.2; transverse connecting rod 1.2.3; upper gantry crossbeam 1.3; upper leg crossbeam 1.4; hierarchical lifting system 2; hoist lifting mechanism 2.1; trolley crossbeam frame 2.2; lifting lug 2.2.1; guide wheel mechanism 2.3; hierarchical locking mechanism 2.4; hierarchical fixed base 2.4.1; guide sleeve 2.4.2; locking shaft 2.4.3; servo electric cylinder 2.4.4; connecting seat 2.4.5; trolley crossbeam platform 2.5; electrical control box assembly 2.6; automatic palletizing device 3; stacking transfer trolley 3.1; support 3.2; telescopic jib 3.3; stacking vacuum chuck 3.4; longitudinal translation mechanism 3.5; longitudinal sliding seat 3.5.1; longitudinal rack 3.5.2; longitudinal drive motor 3.5.3; horizontal longitudinal linear bearing guide pair 3.5.4; lifting rack 3.6; stacking drive motor 3.7; vertical linear bearing guide pair 3.8; support plate 3.9; adjusting plate 3.10; locking bolt 3.11; adjusting bolt 3.12. Detailed implementation mode

[0029] See Figure 1-7 As shown in the figure, the utility model relates to a self-lifting stacking special crane, which includes a gantry system 1, a hierarchical lifting system 2 and an automatic palletizing device 3. The gantry system 1 is connected to the hierarchical lifting system 2. The hierarchical lifting system 2 includes a trolley crossbeam frame 2.2 that can be hierarchically lifted and lowered, and an automatic palletizing device 3 is arranged on the trolley crossbeam frame 2.2.

[0030] The gantry system 1 includes a gantry end beam 1.1 that can move back and forth, gantry legs 1.2, an upper gantry crossbeam 1.3 and an upper leg crossbeam 1.4. The gantry end beam 1.1 drives the whole gantry system to move back and forth through a gantry drive mechanism. The two gantry end beams 1.1 are arranged left and right. Each gantry end beam 1.1 is symmetrically provided with gantry legs 1.2 in the front and back. The gantry legs 1.2 are fixed on the gantry end beam 1.1 by bolts. The tops of the two gantry legs 1.2 on the same side left and right are connected by the upper leg crossbeam 1.4, and the tops of the two gantry legs 1.2 on the same side front and back are connected by the upper gantry crossbeam 1.3. The upper leg crossbeam 1.4 and the upper gantry crossbeam 1.3 are welded into a gantry crane frame.

[0031] The gantry leg 1.2 includes a gantry column 1.2.1, a diagonal brace 1.2.2 and a transverse connecting rod 1.2.3. The gantry column 1.2.1 is arranged inside the diagonal brace 1.2.2. The gantry column 1.2.1 and the diagonal brace 1.2.2 are connected by the transverse connecting rod 1.2.3. A plurality of transverse connecting rods 1.2.3 are equidistantly spaced in the height direction of the gantry column 1.2.1.

[0032] The said hierarchical lifting system 2 includes a hoist lifting mechanism 2.1, a trolley crossbeam frame 2.2, a guide wheel mechanism 2.3 and a hierarchical locking mechanism 2.4. Four hoist lifting mechanisms 2.1 are arranged at the four corners of the top of the gantry system 1. The hoist lifting mechanism 2.1 is fixed on the corresponding leg upper crossbeam 1.3. Lifting lugs 2.2.1 are provided at the four corners of the trolley crossbeam frame 2.2 corresponding to the hoist lifting mechanism 2.1. The hoist hook of the hoist lifting mechanism 2.1 hooks the lifting lug to drive the trolley crossbeam frame 2.2 to lift and lower.

[0033] In order to make the trolley crossbeam frame 2.2 lift and lower smoothly, guide wheel mechanisms 2.3 are provided at the four corners of the trolley crossbeam frame 2.2. The guide wheel mechanism 2.3 has two upper and lower layers. Two guide wheel mechanisms 2.3 are provided at the same corner point of each layer. The two guide wheel mechanisms 2.3 are arranged at 90° to each other. Specifically, the guide wheels of the two guide wheel mechanisms 2.3 are respectively in contact with the adjacent two sides of the corresponding gantry column 1.2.1. The guide wheel mechanism 2.3 guides to realize vertical hierarchical lifting.

[0034] Four hierarchical locking mechanisms 2.4 are arranged at the four corners of the trolley crossbeam frame 2.2. The hierarchical locking mechanism 2.4 includes a hierarchical fixed base 2.4.1, a guide sleeve 2.4.2, a locking shaft 2.4.3 and a servo electric cylinder 2.4.4. The locking shaft 2.4.3 is connected to the servo electric cylinder 2.4.4. The servo electric cylinder 2.4.4 is fixed on the trolley crossbeam frame 2.2 through a connecting seat 2.4.5. A plurality of hierarchical fixed bases 2.4.1 are equidistantly distributed along the height direction of the gantry leg 1.2 corresponding to the locking shaft 2.4.3. One end of the servo electric cylinder 2.4.4 is hinged to the connecting seat 2.4.5, and the other end is hinged to the locking shaft 2.4.3. A guide sleeve 2.4.2 is sleeved outside the locking shaft 2.4.3. The guide sleeve 2.4.2 is welded to the trolley crossbeam frame 2.2. The trolley crossbeam frame 2.2 is lifted and lowered by the lifting hoist mechanism 2.1. After lifting to an appropriate height, the servo electric cylinder 2.4.4 is driven, and the locking shaft 2.4.3 extends out of the guide sleeve 2.4.2 and is inserted into the corresponding hierarchical fixed base 2.4.1 to realize hierarchical locking.

[0035] The trolley crossbeam frame 2.2 is equipped with a trolley crossbeam platform 2.5. The trolley crossbeam platform 2.5 is connected to the trolley crossbeam frame 2.2 through a support seat. An electrical control box assembly 2.6 is provided on the trolley crossbeam platform 2.5. The conveying equipment (not shown in the figure) is lifted and lowered synchronously with the trolley crossbeam frame 2.2. The conveying equipment conveys the bagged materials to the trolley crossbeam platform 2.5 for the stacking vacuum suction cup 3.4 of the automatic palletizing device 3 to suck the bagged materials.

[0036] The automatic palletizing device 3 includes a stacking translation trolley 3.1, a longitudinally movable support 3.2, a telescopic lifting arm 3.3, and a stacking vacuum suction cup 3.4. The stacking translation trolley 3.1 moves transversely along the stacking trolley cross beam of the trolley cross beam frame 2.2. The stacking translation trolley 3.1 is connected to the support 3.2 through a longitudinal translation mechanism 3.5. The telescopic lifting arm 3.3 is slidably arranged in the support 3.2. A lifting rack 3.6 is arranged on one side of the telescopic lifting arm 3.3. The lifting rack 3.6 is driven by a stacking drive motor 3.7. The stacking drive motor 3.7 is fixed on the support 3.2. A lifting drive gear corresponding to the lifting rack 3.6 is arranged at the output end of the stacking drive motor. A stacking vacuum suction cup 3.4 for sucking material packages is arranged at the bottom of the telescopic lifting arm 3.3. In order to make the telescopic lifting arm lift smoothly, a vertical linear bearing guide pair 3.8 is further arranged between the telescopic lifting arm 3.3 and the support 3.2.

[0037] For the convenience of installation and to ensure the vertical lifting of the telescopic lifting arm, the vertical linear bearing guide pair 3.8 on one side of the telescopic lifting arm 3.3 is fixed on the support 3.2 through a support plate 3.9, and the vertical linear bearing guide pair 3.8 on the other side is fixed on an adjusting plate 3.10. The adjusting plate 3.10 is fixed on the corresponding support plate 3.9 through a locking bolt 3.11. An adjusting bolt 3.12 passes through the corresponding support plate and abuts against the adjusting plate 3.10. By tightening the adjusting bolt 3.12 to press the adjusting plate 3.10 tightly, after the adjustment is in place, tighten the locking bolt 3.11 to achieve the rapid installation of the telescopic lifting arm 3.3 with high installation accuracy.

[0038] The longitudinal translation mechanism 3.5 includes a longitudinal sliding seat 3.5.1, a longitudinal rack 3.5.2, and a longitudinal drive motor 3.5.3. The longitudinal sliding seat 3.5.1 is fixed on the stacking translation trolley 3.1. A longitudinal rack 3.5.2 is arranged on the longitudinal sliding seat 3.5.1. The longitudinal rack 3.5.2 is driven by the longitudinal drive motor 3.5.3. A longitudinal drive gear corresponding to the longitudinal rack 3.5.2 is arranged at the output end of the longitudinal drive motor 3.5.3. In order to make the longitudinal movement of the trolley cross beam frame smooth, a horizontal longitudinal linear bearing guide pair 3.5.4 is further arranged between the longitudinal sliding seat 3.5.1 and the support 3.2.

[0039] A self-lifting stacking method includes the following steps:

[0040] Step 1: Move the gantry system back and forth to select a suitable stacking position;

[0041] Step 2: Drive the hoist lifting mechanism of the layered lifting system to drive the trolley beam frame and the automatic palletizing device thereon to vertically lift and stop at different layers, reducing the overall center of gravity of the automatic palletizing device, shortening the vertical stroke, and improving the stacking efficiency; lock the trolley beam frame at different layers through the layered locking mechanism to improve the stacking safety, reduce the shaking of the trolley beam frame at the same time, improve the stacking accuracy, and adjust the height of the conveying equipment so that the conveying equipment and the trolley beam frame are at the same height, facilitating the automatic palletizing device to grab the material packages.

[0042] Step 3: The stacking transfer trolley drives the support and the telescopic jib to horizontally move transversely along the trolley beam frame, and the longitudinal drive motor drives the support to drive the telescopic jib to horizontally move longitudinally, achieving full coverage of the working area. The stacking vacuum suction cup at the bottom of the telescopic jib sucks the material packages from the trolley beam platform, and the telescopic jib is driven by the stacking drive motor to lift between single layers.

[0043] In addition to the above embodiments, the present utility model also includes other implementation manners. Any technical solutions formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the claims of the present utility model.

Claims

1. A self-lifting stacking crane, characterized in that: It includes a gantry system, a layered lifting system and an automatic stacking device, wherein the gantry system is connected to the layered lifting system, the layered lifting system includes a trolley crossbeam frame that can be lifted in layers, and the trolley crossbeam frame is provided with an automatic stacking device; The layered lifting system includes a hoist lifting mechanism and a trolley beam frame, wherein four hoist lifting mechanisms are arranged at the top four corners of the gantry system, and lifting ears are arranged at the four corners of the trolley beam frame corresponding to the hoist lifting mechanisms; The automatic stacking device includes a stacking translation trolley, a longitudinally movable support, a telescopic boom and a stacking vacuum suction cup. The stacking translation trolley moves laterally along the stacking trolley beam of the trolley beam frame. A telescopic boom is slidably provided in the support. A lifting rack is provided on one side of the telescopic boom. The lifting rack is driven by a stacking drive motor. The stacking drive motor is fixed on the support. A stacking vacuum suction cup for sucking material bags is provided at the bottom of the telescopic boom.

2. A self-lifting stacking crane according to claim 1, characterized in that: The gantry system includes a gantry end beam that can move forward and backward, a gantry leg, a gantry upper crossbeam and a leg upper crossbeam, two gantry end beams are arranged on the left and right, each gantry end beam is symmetrically provided with a gantry leg front and back, the gantry leg is fixed to the gantry end beam by bolts, the tops of the two gantry legs on the same left and right sides are connected by the leg upper crossbeam, the tops of the two gantry legs on the same front and back sides are connected by the gantry upper crossbeam, the leg upper crossbeam and the gantry upper crossbeam are welded into a gantry crane frame.

3. The self-lifting stacking crane according to claim 2, characterized in that: The portal legs include portal columns, oblique supports and transverse connecting rods. The portal columns are arranged on the inner side of the oblique supports. The portal columns and the oblique supports are connected by transverse connecting rods. A plurality of transverse connecting rods are evenly spaced and distributed in the height direction of the portal columns.

4. The self-lifting stacking crane according to claim 3 is characterized in that: The four corners of the trolley crossbeam frame are equipped with guide wheel mechanisms. The guide wheel mechanisms are provided with two layers, an upper layer and a lower layer. Two guide wheel mechanisms are provided at the same corner point of each layer. The two guide wheel mechanisms are arranged at 90 degrees in pairs, and the guide wheels of the two guide wheel mechanisms are respectively in contact with the adjacent two sides of the corresponding portal frame columns.

5. The self-lifting stacking crane according to claim 1, characterized in that: The trolley cross beam frame is provided with a layered locking mechanism, and four layered locking mechanisms are arranged at the four corners of the trolley cross beam frame. The layered locking mechanism includes a layered fixed base, a guide sleeve, a locking shaft and a servo electric cylinder. The locking shaft is connected to the servo electric cylinder, and the servo electric cylinder is fixed on the trolley cross beam frame through a connecting seat. A plurality of layered fixed bases are equidistantly distributed corresponding to the locking shaft in the height direction of the gantry legs of the gantry system. One end of the servo electric cylinder is hinged to the connecting seat, and the other end is hinged to the locking shaft. A guide sleeve is provided on the outer sleeve of the locking shaft, and the guide sleeve is welded to the trolley cross beam frame.

6. The self-lifting stacking crane according to claim 1, characterized in that: The trolley cross beam frame is equipped with a trolley cross beam platform, and the trolley cross beam platform is connected to the trolley cross beam frame through a support seat. An electrical control box assembly is provided on the trolley cross beam platform. The transmission equipment rises and falls synchronously with the trolley cross beam frame. The transmission equipment transports the bagged materials to the trolley cross beam platform for the stacking vacuum suction cup of the automatic stacking device to absorb the bagged materials.

7. The self-lifting stacking crane according to claim 1, characterized in that: The vertical linear bearing guide pair on one side of the telescopic boom is fixed to the support through a support plate, and the vertical linear bearing guide pair on the other side is fixed to an adjustment plate. The adjustment plate is fixed to the support plate on the corresponding side through a locking bolt. The adjusting bolt passes through the corresponding support plate to press against the adjusting plate, and the adjusting plate is tightened by the adjusting bolt.

8. The self-lifting stacking crane according to claim 1, characterized in that: The stacking translation trolley is connected to the support through a longitudinal translation mechanism, and the longitudinal translation mechanism includes a longitudinal slide, a longitudinal rack and a longitudinal drive motor. The longitudinal slide is fixed on the stacking translation trolley, and the longitudinal slide is provided with a longitudinal rack, and the longitudinal rack is driven by the longitudinal drive motor.

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