Anti-rollover device for cargo carrying table of stacking machine

Abstract

The utility model relates to the technical field of stacking machines, in particular to a stacking machine cargo carrying table anti-tipping device which comprises a bottom plate, a cargo carrying table and vertical frames, the vertical frames are fixedly installed above the bottom plate, sliding positioning anti-tipping devices are arranged on the outer sides of the vertical frames, and each sliding positioning anti-tipping device comprises a protruding block, a vertical rod and a connecting block. The two protruding blocks are fixedly installed on the outer side of the top end of the vertical frame, and a plurality of vertical rods are fixedly connected to the lower portions of the two protruding blocks. According to the anti-rollover device for the cargo carrying table of the stacking machine, when the cargo carrying table is parked above the bottom plate, the connecting block is connected with the turnover plate through the bolts, so that the rear side of the connecting block is connected with the multiple sliding blocks, and the multiple sliding blocks are limited under the action of the vertical rods; the mutual traction fixing force among the multiple sliding blocks can assist the cargo carrying table in keeping balance and preventing the cargo carrying table from tipping, the stable structure of the cargo carrying table is achieved through peripheral stable traction, and the tipping prevention function of the tipping prevention device for the cargo carrying table of the stacking machine is directly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stackers, in particular to an anti-tilting device for a cargo platform of a stacker. Background Art

[0002] A stacker crane is a special crane that uses a fork or a skewer as a picking device to grab, transport and stack or pick up and place unit cargo from high-rise shelves in warehouses, workshops, etc. It is a kind of warehousing equipment. A stacker crane is also called a stacker. It is the most important lifting and transportation equipment in a three-dimensional warehouse and a symbol of the characteristics of a three-dimensional warehouse. The main function of a stacker crane is to run back and forth in the aisles of the three-dimensional warehouse, to store the goods at the entrance of the aisle into the cargo compartment of the shelf, or to take out the goods in the cargo compartment and transport them to the entrance of the aisle.

[0003] For example, the authorization announcement number "CN220201339U" is named an anti-tilt device for a stacker's cargo platform. Although a buffer elastic body is arranged on the guide frame of the cargo platform, it can support the lifting column of the stacker when the cargo platform is tilted to prevent the cargo platform from tipping over. However, the existing anti-tilt device for the cargo platform of the stacker adopts multiple anti-tilt devices to support the cargo platform when it is tilted. However, the main force points of the anti-tilt device are completely supported by several buffer elastic bodies of limited size. The buffer elastic bodies have great toughness and limited load-bearing capacity. When the stacker is transporting materials, the cargo platform may carry heavy goods. At this time, the overturned cargo platform acts on the buffer elastic body with poor supporting force, which is very likely to bend or break the buffer elastic body. At this time, the anti-tilt device will be damaged, resulting in a reduction in the anti-tilt function of the anti-tilt device for the cargo platform of the stacker.

[0004] At the same time, the existing stacker crane cargo platform anti-tilt device adopts the cooperation of the guide rails on both sides of the stacker crane cargo platform anti-tilt device and the driving device to drive the cargo platform to rise and fall. In this way, the gravity and inertia of the load platform rising and falling completely need to be supported by the driving devices on both sides. Once the driving device of the stacker crane fails and is damaged, the cargo platform that has lost its supporting force will fall rapidly, and the braking device will also have to bear the excessive impact force at the same time. At this time, heavy goods are easy to fall and collapse, resulting in the problem of poor safety in the use of the stacker crane cargo platform anti-tilt device. Utility Model Content

[0005] The utility model aims to solve the problems of poor anti-tilting function and poor use safety of the anti-tilting device of a cargo platform of a stacker, and proposes an anti-tilting device of a cargo platform of a stacker.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stacker loading platform anti-tilt device, comprising a base plate, a loading platform and a vertical frame, a plurality of the vertical frames are fixedly installed on the top of the base plate, a plurality of the vertical frames are provided with a sliding positioning anti-tilt device on the outer sides, the sliding positioning anti-tilt device comprises a protrusion, a vertical rod and a connecting block, two of the protrusions are fixedly installed on the outer side of the top end of the vertical frame, a plurality of vertical rods are fixedly connected below the two protrusions, a plurality of sliding blocks are slidably sleeved on the outer sides of the plurality of vertical rods, a plurality of sliding blocks are rotatably connected on the outer sides of the plurality of sliding blocks, a plurality of the folding plates are threadedly connected on the inner sides of the plurality of folding plates, and a plurality of connecting blocks are threadedly connected on the ends of the plurality of bolts.

[0007] Preferably, a cargo platform lifting structure is provided on the inner side of the plurality of said stands;

[0008] The cargo platform lifting structure includes a guide rail, a driving device and a cargo rack;

[0009] The plurality of guide rails are fixedly connected to the inner side of the vertical frame, the plurality of drive devices are slidably connected inside the plurality of guide rails, a cargo rack is fixedly installed inside the plurality of drive devices, a cargo door is hinged at the front end of the cargo rack, and a positioning frame is fixedly installed at the top end of the cargo rack.

[0010] Preferably, the outer walls of the plurality of connecting blocks are fixedly connected to the outer wall of the driving device, and the bottom end of the cargo rack is fixedly connected to the top of the cargo platform.

[0011] Preferably, a cargo platform auxiliary lifting and lowering structure is provided at the top of the stand;

[0012] The cargo platform auxiliary lifting and lowering structure comprises a top plate, a motor and a lifting cable;

[0013] The two top plates are fixedly installed on the top of the stand, a motor seat is fixedly installed above the two top plates, a motor is fixedly installed on the inner side of the two motor seats, the output shafts of the two motors are fixedly connected to a winding roller, a lifting steel cable is wound around the outer side of the winding roller, and the bottom ends of the two lifting steel cables are fixedly connected to the top of the positioning frame.

[0014] Preferably, a hoisting cable positioning structure is provided above the positioning frame;

[0015] The hoisting cable positioning structure includes a cushion block, a vertical plate and an extension plate;

[0016] The two cushion blocks are fixedly installed on the top of the positioning frame, and vertical plates are fixedly connected on the top of the two cushion blocks. Extension plates are fixedly installed on the top of the two vertical plates. Two through holes are fixedly opened on the inner side of the extension plate, and the inner sides of the two through holes are slidably connected to the lifting steel cables.

[0017] Preferably, a plurality of limit heads are fixedly connected to the bottom end of the cargo platform, a plurality of docking holes are fixedly opened on the inner side of the bottom plate, and the tops of the plurality of docking holes are movably connected to the bottom ends of the limit heads.

[0018] Preferably, the front end of the cargo door is movably connected to a door bolt, and the lower end of the cargo door is movably connected to the upper part of the cargo platform.

[0019] Preferably, the plurality of stands are arranged relatively parallel to each other, and the plurality of poles are arranged parallel to each other.

[0020] The utility model proposes an anti-tipping device for a stacker loading platform, which has the beneficial effect of: when the loading platform is parked above the bottom plate, the connecting block is connected to the folding plate by bolts, so that the rear side of the connecting block will be connected to a plurality of sliders, and the plurality of sliders will be limited under the action of the vertical rods, and the mutual traction and fixing force between the plurality of sliders can assist the loading platform to maintain balance and not tip over, and the stable structure of the loading platform is realized by stable traction on all sides, which directly improves the anti-tipping function of the anti-tipping device for the stacker loading platform.

[0021] A winding roller is fixedly connected through the output shafts of the two motors, and a plurality of circles of lifting steel cables are wound around the outside of the winding roller. When driven by the winding roller, the positioning frame is lowered and suspended together with the cargo platform at the bottom, providing auxiliary lifting and supporting force. The lifting steel cables can be lengthened or shortened to pull the cargo platform at the bottom up or down, which can reduce the pressure and load-bearing weight of the driving device and improve the safety of the stacker's cargo platform anti-tipping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0023] Figure 2 for Figure 1 A front cross-sectional schematic diagram of

[0024] Figure 3 for Figure 1 A schematic top view of the top surface;

[0025] Figure 4 for Figure 2 Enlarged cross-sectional view of part A in the middle;

[0026] Figure 5 for Figure 2 Enlarged cross-sectional view of part B in the middle;

[0027] Figure 6 for Figure 2 Enlarged cross-sectional view of the middle C part;

[0028] Figure 7 for Figure 2Enlarged cross-sectional view of area D in the middle.

[0029] In the figure: 1, bottom plate, 2, cargo platform, 3, vertical frame, 4, sliding positioning anti-tilt device, 41, protrusion, 42, vertical rod, 43, slider, 44, flip plate, 45, bolt, 46, connecting block, 5, cargo platform lifting structure, 51, guide rail, 52, driving device, 53, cargo shelf, 54, positioning frame, 55, cargo door, 6, lifting cable positioning structure, 61, cushion block, 62, vertical plate, 63, extension plate, 64, through hole, 7, cargo platform auxiliary lifting and lifting structure, 71, top plate, 72, motor seat, 73, motor, 74, winding roller, 75, lifting cable, 81, limit head, 82, docking hole, 9, door bolt. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] See also Figure 1-7 A stacker cargo platform anti-tilt device comprises a bottom plate 1, a cargo platform 2 and a stand 3, wherein a plurality of stands 3 are fixedly mounted above the bottom plate 1, a plurality of stands 3 are provided with a sliding positioning anti-tilt device 4 on the outer side thereof, the sliding positioning anti-tilt device 4 comprises a convex block 41, a vertical rod 42 and a connecting block 46, two convex blocks 41 are fixedly mounted on the outer side of the top of the stand 3, a plurality of vertical rods 42 are fixedly connected below the two convex blocks 41, a plurality of sliders 43 are slidably sleeved on the outer side of the plurality of vertical rods 42, and the plurality of sliders 43 slide up and down along the guide of the vertical rod 42 When the cargo platform 2 is parked above the bottom plate 1, the operator can first flip over the multiple folding plates 44 along the pin shaft, and the bolts 45 at the ends of the folding plates 44 will fit with the connecting blocks 46. At this time, the bolts 45 are rotated and tightened, and the connecting blocks 46 are connected to the folding plates 44 using the bolts 45, so that the rear side of the connecting blocks 46 will be connected to the multiple sliders 43, and the outer sides of the multiple sliders 43 are rotatably connected to the folding plates 44, and the inner sides of the multiple folding plates 44 are threadedly connected to the bolts 45, and the ends of the multiple bolts 45 are threadedly connected to the multiple connecting blocks 46.

[0032] A cargo platform lifting structure 5 is provided on the inner side of the plurality of vertical frames 3, and the cargo platform lifting structure 5 includes a guide rail 51, a driving device 52 and a cargo rack 53. The plurality of guide rails 51 are fixedly connected to the inner side of the vertical frames 3, and the plurality of driving devices 52 are slidably connected inside the plurality of guide rails 51. The driving device 52 belongs to the prior art "CN220201339U" and is named as an existing prior art in a stacker cargo platform anti-tilt device. The guide frames on both sides are connected with the guide rails of the lifting columns through guide wheels; the driving device drives the cargo platform to move up and down along the lifting columns The driving device 52 is movable, so the driving device can drive the cargo platform 2 to move up and down under the guidance of the guide rail 51. When the cargo platform 2 fails and will overturn, the multiple sliders 43 will be limited under the action of the vertical rod 42. The mutual traction and fixing force between the multiple sliders 43 can help the cargo platform 2 to maintain balance and not overturn. The inner side of the multiple driving devices 52 is fixedly installed with a cargo rack 53. The front end of the cargo rack 53 is hinged with a cargo door 55 through a hinge. The cargo door 55 can be opened along the hinge to facilitate the delivery and stacking of goods. The top of the cargo rack 53 is fixedly installed with a positioning frame 54.

[0033] When the cargo platform 2 is parked on the bottom plate 1, the operator can first flip the multiple folding plates 44 along the pin shaft, and the bolts 45 at the ends of the folding plates 44 will fit with the connecting blocks 46. At this time, the bolts 45 are rotated to tighten, and the connecting blocks 46 are connected to the folding plates 44 using the bolts 45. In this way, the rear side of the connecting blocks 46 will be connected to the multiple sliders 43, and the driving device can drive the cargo platform 2 to move up and down under the guidance of the guide rails 51. When the cargo platform 2 fails and is about to overturn, the multiple sliders 43 will be limited by the vertical rods 42. The mutual traction and fixing force between the multiple sliders 43 can help the cargo platform 2 maintain balance and prevent it from overturning. The stable structure of the cargo platform is achieved by using stable traction on all sides, which directly improves the anti-overturning function of the anti-overturning device of the stacker cargo platform.

[0034] See also Figure 1-7, a cargo platform auxiliary lifting and lifting structure 7 is provided at the top of the stand 3, and the cargo platform auxiliary lifting and lifting structure 7 includes a top plate 71, a motor 73 and a lifting cable 75. The two top plates 71 are fixedly installed on the top of the stand 3, and a motor seat 72 is fixedly installed above the two top plates 71. The motor seat 72 is used to fix two motors 73. The inner side of the two motor seats 72 is fixedly installed with a motor 73. The motor 73 is a servo motor. The servo motor can be selected with a model that can meet the use requirements. The output shafts of the two motors 73 are fixedly connected with a winding roller 74. The outer side of the winding roller 74 is wound with a plurality of turns of lifting cable 75. The lifting cable 75 is a carbon steel rope woven from high-strength steel cables, which can have high tensile and crack resistance. The lifting cable 75 is driven by the winding roller 74 to descend the positioning frame 54 together with the cargo platform 2 at the bottom, providing auxiliary lifting and supporting force. The bottom ends of the two lifting cables 75 are fixedly connected to the top of the positioning frame 54.

[0035] A lifting cable positioning structure 6 is provided above the positioning frame 54. The lifting cable positioning structure 6 includes a cushion block 61, a vertical plate 62 and an extension plate 63. The two cushion blocks 61 are fixedly installed above the positioning frame 54. The vertical plates 62 are fixedly connected above the two cushion blocks 61. The cushion blocks 61 are used to support the vertical plates 62 above the positioning frame 54. The vertical plates 62 are used to fix the extension plates 63 above the cushion blocks 61. When the lifting cable 75 is connected to the winding roller 74 and the positioning frame 54, the lifting cable 75 also passes through the through hole 64 on the inner side of the extension plate 63. In this way, the through hole 64 will play a role in limiting and guiding the lifting cable 75 to prevent the lifting cables 75 from being entangled and knotted with each other. The top ends of the two vertical plates 62 are fixedly installed with the extension plate 63. The inner side of the extension plate 63 is fixedly provided with two through holes 64. The inner sides of the two through holes 64 are slidably connected to the lifting cable 75.

[0036] The winding roller 74 is fixedly connected to the output shaft of the two motors 73, and a lifting cable 75 is wound around the outside of the winding roller 74 for multiple turns. The lifting cable 75 is made of carbon steel rope woven from high-strength steel cable, which has high tensile and crack resistance. The lifting cable 75 is driven by the winding roller 74 to suspend the lower positioning frame 54 together with the cargo platform 2 at the bottom, providing auxiliary lifting and supporting force. The lifting cable can be lengthened or shortened to pull the cargo platform at the bottom to rise and fall, which can reduce the pressure and load-bearing weight of the driving device 53 and improve the safety of the stacker's cargo platform anti-tipping device.

[0037] See also Figure 1-7The outer walls of the multiple connecting blocks 46 are fixedly connected to the outer walls of the driving device 52, the bottom end of the cargo shelf 53 is fixedly connected to the top of the cargo platform 2, the bottom end of the cargo platform 2 is fixedly connected with multiple limit heads 81, and the inner side of the bottom plate 1 is fixedly provided with multiple docking holes 82. When the cargo platform 2 falls and contacts the bottom plate 1, the multiple limit heads 81 will be inserted into the corresponding docking holes 82. The docking holes 82 cooperate with the limit heads 81 to improve the fit balance between the cargo platform 2 and the bottom plate 1, so that the parking position of the cargo platform 2 is not prone to deviation, the top of the multiple docking holes 82 is movably connected to the bottom end of the limit heads 81, the front end of the cargo door 55 is movably connected with a door bolt 9, and the lower end of the cargo door 55 is movably connected to the top of the cargo platform 2, the multiple vertical frames 3 are arranged relatively parallel to each other, and the multiple vertical rods 42 are arranged parallel to each other.

[0038] Working principle:

[0039] In the work of using the stacker loading platform anti-tilt device to reduce the tipping of the loading platform when the stacker cargo is placed on the loading platform for up and down transportation:

[0040] The stable anti-tilt structure of the stacker platform anti-tilt device:

[0041] When the cargo platform 2 is parked on the bottom plate 1, the operator can first flip the multiple folding plates 44 along the pin shaft, and the bolts 45 at the ends of the folding plates 44 will fit with the connecting blocks 46. At this time, the bolts 45 are rotated to tighten, and the connecting blocks 46 are connected to the folding plates 44 by using the bolts 45. In this way, the rear side of the connecting blocks 46 will be connected to the multiple sliders 43, and the driving device can drive the cargo platform 2 to move up and down under the guidance of the guide rails 51. When the cargo platform 2 fails and will overturn, the multiple sliders 43 will be limited by the vertical rods 42, and the mutual traction and fixing force between the multiple sliders 43 can help the cargo platform 2 to maintain balance and prevent it from overturning.

[0042] The lifting cable traction load-reducing structure of the stacker's cargo platform anti-tilt device:

[0043] The winding roller 74 is fixedly connected to the output shaft of the two motors 73. A plurality of turns of hoisting cables 75 are wound around the outer side of the winding roller 74. The hoisting cables 75 are made of carbon steel ropes woven from high-strength steel cables, which have high tensile and crack resistance. The hoisting cables 75 are driven by the winding rollers 74 to suspend the positioning frame 54 together with the cargo platform 2 at the bottom, providing auxiliary lifting and supporting force. The hoisting cables can be lengthened or shortened to pull the cargo platform at the bottom up and down, thereby reducing the pressure and load-bearing weight of the driving device 53.

[0044] Anti-knotting structure of the hoisting cable of the stacker's cargo platform anti-tilt device:

[0045] The pad 61 is used to support the vertical plate 62 above the positioning frame 54, and the vertical plate 62 is used to fix the extension plate 63 above the pad 61. When the lifting cable 75 connects the winding roller 74 and the positioning frame 54, the lifting cable 75 also passes through the through hole 64 on the inner side of the extension plate 63. In this way, the through hole 64 will play a role in limiting and guiding the lifting cable 75 to prevent the lifting cables 75 from being entangled and knotted with each other.

[0046] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A stacker cargo platform anti-tilt device, comprising a bottom plate (1), a cargo platform (2) and a stand (3), characterized in that: A plurality of the vertical frames (3) are fixedly mounted above the bottom plate (1); a sliding positioning anti-tilt device (4) is provided on the outer side of the plurality of vertical frames (3); the sliding positioning anti-tilt device (4) comprises a protrusion (41), a vertical rod (42) and a connecting block (46); two of the protrusions (41) are fixedly mounted on the outer side of the top end of the vertical frames (3); a plurality of vertical rods (42) are fixedly connected below the two protrusions (41); a plurality of sliding blocks (43) are slidably sleeved on the outer side of the plurality of vertical rods (42); a plurality of sliding blocks (43) are rotatably connected on the outer side of the plurality of sliding blocks (43); a plurality of bolts (45) are threadedly connected to the inner side of the plurality of folding plates (44); and a plurality of connecting blocks (46) are threadedly connected to the ends of the plurality of bolts (45).

2. The stacker cargo platform anti-tilt device according to claim 1, characterized in that: A cargo platform lifting structure (5) is provided on the inner side of the plurality of upright frames (3); The cargo platform lifting structure (5) comprises a guide rail (51), a driving device (52) and a cargo platform (53); A plurality of guide rails (51) are fixedly connected to the inner side of the stand (3); a plurality of drive devices (52) are slidably connected inside the plurality of guide rails (51); a loading rack (53) is fixedly installed inside the plurality of drive devices (52); a cargo door (55) is movably hinged at the front end of the loading rack (53) via a hinge; and a positioning frame (54) is fixedly installed at the top end of the loading rack (53).

3. The stacker cargo platform anti-tilt device according to claim 2, characterized in that: The outer walls of the plurality of connection blocks (46) are fixedly connected to the outer wall of the driving device (52), and the bottom end of the cargo rack (53) is fixedly connected to the top of the cargo platform (2).

4. The stacker cargo platform anti-tilt device according to claim 1, characterized in that: A cargo platform auxiliary lifting and lowering structure (7) is provided at the top of the stand (3); The cargo platform auxiliary lifting and lowering structure (7) comprises a top plate (71), a motor (73) and a lifting steel cable (75); The two top plates (71) are fixedly mounted on the top of the stand (3); a motor seat (72) is fixedly mounted above the two top plates (71); a motor (73) is fixedly mounted inside the two motor seats (72); the output shafts of the two motors (73) are fixedly connected to a winding roller (74); a lifting steel cable (75) is wound around the outside of the winding roller (74); and the bottom ends of the two lifting steel cables (75) are fixedly connected to the top of the positioning frame (54).

5. The stacker cargo platform anti-tilt device according to claim 2, characterized in that: A hoisting steel cable positioning structure (6) is provided above the positioning frame (54); The hoisting steel cable positioning structure (6) comprises a cushion block (61), a vertical plate (62) and an extension plate (63); The two cushion blocks (61) are fixedly mounted above the positioning frame (54); a vertical plate (62) is fixedly connected to the top of the two cushion blocks (61); an extension plate (63) is fixedly mounted on the top of the two vertical plates (62); two through holes (64) are fixedly opened on the inner side of the extension plate (63); and the inner sides of the two through holes (64) are slidably connected to the lifting steel cable (75).

6. The stacker cargo platform anti-tilt device according to claim 1, characterized in that: A plurality of limit heads (81) are fixedly connected to the bottom end of the cargo platform (2), a plurality of docking holes (82) are fixedly opened on the inner side of the bottom plate (1), and the tops of the plurality of docking holes (82) are movably connected to the bottom ends of the limit heads (81).

7. The stacker cargo platform anti-tilt device according to claim 2, characterized in that: The front end of the cargo door (55) is movably connected to a door bolt (9), and the lower end of the cargo door (55) is movably connected to the upper part of the cargo platform (2).

8. The stacker cargo platform anti-tilt device according to claim 1, characterized in that: The plurality of upright frames (3) are arranged relatively parallel to each other, and the plurality of vertical rods (42) are arranged parallel to each other.

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