Double-stand-column heavy stacking machine

Abstract

The utility model belongs to the field of stacking machines, and particularly relates to a double-stand-column heavy stacking machine which is characterized in that a lifting mechanism in the double-stand-column heavy stacking machine adopts a lifting motor to simultaneously drive a first winding drum and a second winding drum, namely a single-motor double-winding-drum form, so that the lifting synchronism of the two ends of a cargo carrying table is better guaranteed; and the problem that the cargo carrying table is inclined when the super-long cargo carrying table is lifted is avoided. The movable end of a first steel wire rope passes through the first fixed pulley, the second fixed pulley and the second movable pulley and then is fixed to the end, close to the second stand column, of the upper cross beam through a suspension clamp. The movable end of the second steel wire rope passes through the third fixed pulley, the fourth fixed pulley and the first movable pulley and then is fixed to the end, close to the first stand column, of the upper cross beam through the suspension clamp, the movable pulley hoisting mode is more labor-saving, the load of the cargo carrying table is greatly increased, and it can be guaranteed that the cargo carrying table still has good lifting smoothness under the large load condition.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stacker, in particular to a double-column heavy stacker. BACKGROUND

[0002] In modern logistics and warehousing, the stereoscopic shelf is usually used with the stacker, and the stacker is used for storing and taking goods from the high shelf. Among them, the stacker is divided into single-column stacker and double-column stacker according to the number of columns. Different from the single-column stacker, the rack structure of the double-column stacker is a rectangular frame composed of two columns, an upper cross beam and a lower cross beam, and the structural rigidity is good, and the quality is larger than that of the single-column.

[0003] Most of the existing double-column stackers use two motors to drive two winches to lift the loading platform through steel wire ropes. During the operation of the two winches, if one fails to work, the other still maintains the working state, which will cause the loading platform to tilt and thus cause a safety accident. In addition, one end of the steel wire rope on the winch is connected with the winch, and the other end is connected with the loading platform. The up and down movement of the loading platform is realized by the forward and reverse rotation of the motor. This lifting driving mode is suitable for carrying light goods. When used for heavy goods, the steel wire rope and the winch need to bear a large load force, which affects the service life and has certain safety hazards. CONTENT OF THE INVENTION

[0004] The embodiment of the present application provides a double-column heavy stacker, which is used for solving the problems that the loading platform may tilt during the lifting process and the steel wire rope and the winch need to bear a large load force when used for carrying heavy goods, which affects the service life and has certain safety hazards.

[0005] To achieve the above-mentioned purpose, the present application provides a double-column heavy stacker, which comprises:

[0006] A rack comprising a first column, a second column, an upper cross beam and a lower cross beam, the first column and the second column are arranged at intervals, the upper cross beam is connected between the top of the first column and the top of the second column, the lower cross beam is connected between the bottom of the first column and the bottom of the second column, one end of the first column close to the first column and one end of the second column close to the second column are respectively provided with a first fixed pulley and a second fixed pulley, and the other side of the upper cross beam close to one end of the first column is provided with a third fixed pulley and a fourth fixed pulley side by side;

[0007] A loading platform located between the first column and the second column, one end of the loading platform close to the first column is provided with a first movable pulley, and one end of the loading platform close to the second column is provided with a second movable pulley; and

[0008] The lifting mechanism comprises a lifting motor, a first winding drum, a second winding drum, a first steel wire rope and a second steel wire rope, the lifting motor is fixed outside the first stand, the first winding drum and the second winding drum are connected with the output shaft of the lifting motor, one end of the first steel wire rope is connected to the first winding drum, the other end is fixed to one end of the upper cross beam close to the second stand through a lifting clamp after passing through the first fixed pulley, the second fixed pulley and the second movable pulley; one end of the second steel wire rope is connected to the second winding drum, the other end is fixed to one end of the upper cross beam close to the first stand through a lifting clamp after passing through the third fixed pulley, the fourth fixed pulley and the first movable pulley.

[0009] Optionally, two telescopic forks are arranged on the loading platform in the length direction thereof.

[0010] Optionally, two linear modules are arranged on the loading platform in the length direction thereof, and the two telescopic forks are arranged one by one on the two linear modules, and the two telescopic forks can approach or move away from each other under the drive of the two linear modules.

[0011] Optionally, the part of the telescopic fork in contact with the goods is provided with a rubber pad.

[0012] Optionally, vertical guide rails are fixed to the front and back of the first stand and the second stand, and guide wheel sets are arranged at the two ends of the loading platform and are in sliding connection with the guide rails.

[0013] Optionally, safety clamps are arranged at the two ends of the loading platform and are matched with the guide rails, and the safety clamps are used to stop the loading platform in an emergency and clamp the loading platform on the guide rails when the loading platform falls rapidly.

[0014] Optionally, a control cabinet and an operation table are arranged outside the second stand.

[0015] Optionally, a hydraulic buffer is arranged on the lower cross beam.

[0016] Optionally, a walking mechanism is arranged at the bottom of the lower cross beam, a ground rail is arranged below the lower cross beam for guiding the movement of the walking mechanism, and a sky rail is arranged above the upper cross beam for guiding the movement of the rack.

[0017] Optionally, a laser reflection plate is arranged at one end of the length direction of the ground rail, and a laser ranging sensor is arranged on the lower cross beam to emit laser to the laser reflection plate.

[0018] The beneficial effects of the double-column heavy-duty stacker crane provided in this application are as follows: Compared with the prior art, the lifting mechanism of the double-column heavy-duty stacker crane of this application adopts a single lifting motor to simultaneously drive the first drum and the second drum, that is, a single motor double drum form, which better ensures the synchronous lifting of both ends of the loading platform and avoids the problem of the loading platform tilting when lifting an extra-long loading platform. By setting a first movable pulley and a second movable pulley at both ends of the loading platform respectively, the movable end of the first wire rope passes through the first fixed pulley, the second fixed pulley and the second movable pulley and is fixed to the end of the upper crossbeam near the second column by a clamp; the movable end of the second wire rope passes through the third fixed pulley, the fourth fixed pulley and the first movable pulley and is fixed to the end of the upper crossbeam near the first column by a clamp. This lifting method of movable pulleys is more labor-saving, greatly increases the load of the loading platform, and can also ensure good lifting smoothness under heavy load. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] in:

[0021] Figure 1 This is a schematic diagram of the overall structure of a double-column heavy stacker crane according to an embodiment of this application;

[0022] Figure 2 This is a front view of a double-column heavy-duty stacker crane shown in one embodiment of this application;

[0023] Figure 3 yes Figure 1 Enlarged structural diagram at point A in the diagram;

[0024] Figure 4 yes Figure 1 Enlarged structural diagram at point B in the diagram;

[0025] Figure 5 This is a schematic diagram of the loading platform in a double-column heavy stacker crane according to an embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the structure of the first column in a double-column heavy stacker crane according to an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 110. First column; 120. Second column; 121. Control cabinet; 122. Operating console; 130. Upper crossbeam; 131. First fixed pulley; 132. Second fixed pulley; 133. Third fixed pulley; 134. Fourth fixed pulley; 135. Lifting clamp; 140. Lower crossbeam; 150. Guide rail;

[0029] 200. Cargo platform; 210. First movable pulley; 220. Second movable pulley; 230. Guide wheel assembly; 240. Safety clamp; 201. Linear module;

[0030] 300. Telescopic forks; 301. Rubber pads;

[0031] 400. Lifting mechanism; 410. Lifting motor; 420. First drum; 430. Second drum; 440. First wire rope; 450. Second wire rope;

[0032] 500, Ground track; 501, Laser reflector;

[0033] 600, Sky Track. Detailed Implementation

[0034] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0039] Embodiments of this application provide a double-column heavy-duty stacker crane, such as... Figures 1-4 As shown, the double-column heavy stacker crane includes a frame, a loading platform 200, and a lifting mechanism 400.

[0040] The frame includes a first column 110, a second column 120, an upper crossbeam 130, and a lower crossbeam 140. The first column 110 and the second column 120 are spaced apart. The upper crossbeam 130 connects the tops of the first column 110 and the second column 120. The lower crossbeam 140 connects the bottoms of the first column 110 and the second column 120. A first fixed pulley 131 and a second fixed pulley 132 are respectively provided on one side of the upper crossbeam 130 near the first column 110 and the end near the second column 120. A third fixed pulley 133 and a fourth fixed pulley 134 are arranged side by side on the other side of the upper crossbeam 130 near the end of the first column 110.

[0041] The loading platform 200 is located between the first column 110 and the second column 120. The loading platform 200 is provided with a first movable pulley 210 at the end near the first column 110 and a second movable pulley 220 at the end near the second column 120.

[0042] The lifting mechanism 400 includes a lifting motor 410, a first drum 420, a second drum 430, a first wire rope 440, and a second wire rope 450. The lifting motor 410 is fixed to the outside of the first column 110. The first drum 420 and the second drum 430 are both connected to the output shaft of the lifting motor 410. One end of the first wire rope 440 is connected to the first drum 420, and the other end passes through the first fixed pulley 131, the second fixed pulley 132, and the second movable pulley 220, and is then fixed to the end of the upper crossbeam 130 near the second column 120 by a clamp 135. One end of the second wire rope 450 is connected to the second drum 430, and the other end passes through the third fixed pulley 133, the fourth fixed pulley 134, and the first movable pulley 210, and is then fixed to the end of the upper crossbeam 130 near the first column 110 by a clamp 135.

[0043] In this embodiment, the lifting mechanism 400 of the double-column heavy stacker crane adopts a single lifting motor 410 to simultaneously drive the first drum 420 and the second drum 430, i.e., a single motor and double drum configuration, which better ensures the synchronous lifting of both ends of the loading platform 200 and avoids the problem of the loading platform 200 tilting when lifting the extra-long loading platform 200. By setting a first movable pulley 210 and a second movable pulley 220 at both ends of the loading platform 200, the movable end of the first wire rope 440 passes through the first fixed pulley 131, the second fixed pulley 132 and the second movable pulley 220 and is then fixed to the end of the upper crossbeam 130 near the second column 120 by a lifting clamp 135; the movable end of the second wire rope 450 passes through the third fixed pulley 133, the fourth fixed pulley 134 and the first movable pulley 210 and is then fixed to the end of the upper crossbeam 130 near the first column 110 by a lifting clamp 135. This method of lifting with movable pulleys is more labor-saving, greatly increases the load capacity of the loading platform 200, and can still ensure good lifting smoothness under heavy load.

[0044] Among them, such as Figure 2 and Figure 5 As shown, two telescopic forks 300 are spaced apart along the length of the loading platform 200. The telescopic forks 300 are used to pick up and drop goods. Understandably, the telescopic direction of the telescopic forks 300 is perpendicular to the length of the loading platform 200.

[0045] In one embodiment, such as Figure 5 As shown, two linear modules 201 are spaced apart along the length of the loading platform 200. Two telescopic forks 300 are respectively mounted on the two linear modules 201. The two telescopic forks 300 can move closer or further apart under the drive of the two linear modules 201. Preferably, the linear module 201 is a ball screw type linear module.

[0046] The spacing between the two telescopic forks 300 is adjusted by using two linear modules 201, which can adapt to different insertion positions on different goods / pallets and improve the applicability of this double-column heavy stacker crane.

[0047] In one specific embodiment, such as Figure 5 As shown, the telescopic forks 300 are equipped with rubber pads 301 at the parts that come into contact with the goods. Specifically, the rubber pads 301 can be 5mm thick willow leaf-patterned rubber pads, used for anti-slip and protection of the goods at the contact points.

[0048] In one embodiment, combined with Figures 2-3 and Figures 5-6As shown, vertically extending guide rails 150 are fixed on both the front and rear sides of the first column 110 and the second column 120, and guide wheel sets 230 are provided at both ends of the loading platform 200, which are slidably connected to each guide rail 150. Through the cooperation of the guide rails 150 and the guide wheel sets 230, the loading platform 200 is ensured to rise and fall smoothly.

[0049] Furthermore, safety clamps 240 are provided at both ends of the loading platform 200 to cooperate with each guide rail 150. The safety clamps 240 are used to stop the loading platform 200 in case of rapid descent and clamp it onto the guide rail 150. Limit switches for limiting the rising and falling positions of the loading platform 200 are provided on the first column 110 and / or the second column 120. Hydraulic buffers are provided at the top of the lower crossbeam 140 and the bottom of the upper crossbeam 130.

[0050] In one specific embodiment, such as Figure 5 As shown, a control cabinet 121 and an operating console 122 are provided on the outer side of the second column 120.

[0051] A traveling mechanism (not shown in the figure) is provided at the bottom of the lower crossbeam 140. A ground rail 500 for guiding the movement of the traveling mechanism is provided below the lower crossbeam 140, and a ceiling rail 600 for guiding the movement of the frame is provided above the upper crossbeam 130.

[0052] The overhead rail 600 is parallel to the upper crossbeam 130 and is tactilely connected to the limiting rollers on the upper crossbeam 130. The traveling mechanism on the lower crossbeam 140 moves horizontally on the ground rail 500. The traveling mechanism includes a traveling motor, traveling wheels connected to the output shaft of the traveling motor, and traveling guide wheels fixed on both sides of the lower crossbeam 140. Both the traveling wheels and the traveling guide wheels are tactilely connected to the ground rail 500. The traveling motor outputs power to the traveling wheels, which roll along the ground rail 500 to complete the horizontal displacement of the entire double-column heavy stacker crane. The traveling guide wheels on both sides of the lower crossbeam 140 are used to prevent the frame from tilting and to provide guidance.

[0053] Furthermore, the control cabinet 121 is powered by a sliding contact line arranged parallel to the ground rail 500.

[0054] In actual use, the traveling wheels are driven by a motor, which in turn drives the stacker crane to move along the overhead rails 600 and ground rails 500 to enter and exit the automated warehouse. Simultaneously, the lifting motor 410 drives the first wire rope 440 and the second wire rope 450 to wind or release along their corresponding drums, achieving smooth lifting and lowering of the loading platform 200 and its telescopic forks 300. The telescopic forks 300 themselves extend and retract to retrieve goods from the automated warehouse or place goods onto the corresponding shelves.

[0055] In one specific embodiment, such as Figure 2As shown, a laser reflector 501 is provided at one end of the ground rail 500 along its length, and a laser rangefinder sensor (not shown in the figure) that emits laser light to the laser reflector 501 is provided on the lower crossbeam 140.

[0056] The machine frame is positioned by using a laser rangefinder and a laser reflector 501. The accuracy of the movement position can also be improved by using a motor encoder on the walking motor.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A double-column heavy-duty stacker crane, characterized in that, include: The frame includes a first column, a second column, an upper crossbeam, and a lower crossbeam. The first column and the second column are spaced apart. The upper crossbeam connects the tops of the first column and the second column. The lower crossbeam connects the bottoms of the first column and the second column. A first fixed pulley and a second fixed pulley are respectively provided on one side of the upper crossbeam near the first column and the other side of the upper crossbeam near the first column. A third fixed pulley and a fourth fixed pulley are arranged side by side on the other side of the upper crossbeam near the first column. A loading platform, located between the first column and the second column, has a first movable pulley at the end near the first column and a second movable pulley at the end near the second column; and The lifting mechanism includes a lifting motor, a first drum, a second drum, a first wire rope, and a second wire rope. The lifting motor is fixed to the outside of the first column. Both the first drum and the second drum are connected to the output shaft of the lifting motor. One end of the first wire rope is connected to the first drum, and the other end passes through the first fixed pulley, the second fixed pulley, and the second movable pulley before being fixed to the end of the upper crossbeam near the second column by a clamp. One end of the second wire rope is connected to the second drum, and the other end passes through the third fixed pulley, the fourth fixed pulley, and the first movable pulley before being fixed to the end of the upper crossbeam near the first column by a clamp.

2. The double-column heavy-duty stacker crane according to claim 1, characterized in that, The loading platform is provided with two telescopic forks spaced apart along its length.

3. The double-column heavy-duty stacker crane according to claim 2, characterized in that, The loading platform is provided with two linear modules spaced apart along its length. The two telescopic forks are respectively and correspondingly mounted on the two linear modules. The two telescopic forks can move closer to or further away from each other under the drive of the two linear modules.

4. The double-column heavy-duty stacker crane according to claim 2, characterized in that, The telescopic forks are equipped with rubber pads on the parts that come into contact with the goods.

5. The double-column heavy-duty stacker crane according to claim 1, characterized in that, The first column and the second column are both fixed with vertically extending guide rails on their front and rear sides, and both ends of the loading platform are provided with guide wheel sets that are slidably connected to each of the guide rails.

6. The double-column heavy-duty stacker crane according to claim 5, characterized in that, The loading platform is also equipped with safety clamps at both ends that cooperate with the guide rails. The safety clamps are used to stop the loading platform in an emergency and clamp it on the guide rails when the loading platform falls rapidly.

7. The double-column heavy-duty stacker crane according to claim 1, characterized in that, A control cabinet and an operating console are installed on the outside of the second column.

8. The double-column heavy-duty stacker crane according to claim 1, characterized in that, A hydraulic buffer is installed on the lower crossbeam.

9. The double-column heavy-duty stacker crane according to any one of claims 1-8, characterized in that, The bottom of the lower crossbeam is provided with a traveling mechanism, and a ground rail is provided below the lower crossbeam to guide the movement of the traveling mechanism. The top of the upper crossbeam is provided with a ceiling rail to guide the movement of the frame.

10. The double-column heavy-duty stacker crane according to claim 9, characterized in that, A laser reflector is provided at one end of the ground rail along its length, and a laser rangefinder sensor that emits laser light toward the laser reflector is provided on the lower crossbeam.

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