Lightweight novel double-stand-column stacking machine

Abstract

The novel light-weight double-stand-column stacking machine comprises a base, a first stand column, a second stand column, a cross beam, a cargo carrying platform, a lifting driving mechanism, two telescopic pallet fork mechanisms and a pallet fork width adjusting mechanism, the base is connected with the first stand column and the second stand column, and the upper end of the first stand column and the upper end of the second stand column are jointly connected with the cross beam; the cargo carrying platform is connected with the first stand column and the second stand column in a sliding mode, the lifting driving mechanism is connected with the cargo carrying platform and drives the cargo carrying platform to vertically move, the two telescopic pallet fork mechanisms are installed on the cargo carrying platform through the pallet fork width adjusting mechanism, and pallet forks on the telescopic pallet fork mechanisms can stretch and retract front and back. The pallet fork width adjusting mechanism drives the two telescopic pallet fork mechanisms to move close to or away from each other. The fork width adjusting mechanism can be controlled to accurately adjust the using positions of the two forks according to the size information of a container, the two telescopic fork mechanisms synchronously drive the forks on the telescopic fork mechanisms to stretch forwards to the designated position to conduct forking operation, and the forking efficiency of goods is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of warehousing and logistics equipment, and in particular to a lightweight novel double-column stacker. Background Art

[0002] As the core equipment in automated warehouse systems, the performance and technical level of dual-column stacker cranes directly impact the efficiency and quality of the entire warehousing and logistics operation. Existing dual-column stacker cranes have gradually exposed some shortcomings in practical applications. For one thing, as the logistics industry pursues high-speed, high-precision, and large-scale cargo handling, the positioning accuracy and load capacity of traditional stacker cranes are no longer able to meet the growing business needs.

[0003] With the advancement of science and technology and the acceleration of the industrialization process, automated warehousing systems have gradually emerged and been widely used. As an important component of this system, double-column stacker cranes are responsible for the automatic storage, retrieval and handling of goods, playing an important role in improving warehouse space utilization, accelerating cargo turnover, and reducing labor costs. In order to meet the urgent needs of the modern logistics and warehousing industry for efficient, intelligent, reliable and energy-saving storage equipment, and to solve the technical and performance problems of existing double-column stacker cranes, it is of great practical significance and application value to carry out innovative research on double-column stacker cranes and apply for invention patents. Among them, the existing technical problems of stacker cranes mainly include the problem that the width of the forks is not easy to adjust to adapt to different cargo box sizes, resulting in low cargo turnover efficiency.

[0004] Therefore, there is an urgent need for a new lightweight double-column stacker to solve the problem that the width of the forks of the existing double-column stacker is not easy to adjust to accommodate cargo boxes of different sizes, resulting in low cargo turnover efficiency. Summary of the Invention

[0005] The present invention aims to solve the problem that the width of the forks of the existing double-column stacker is difficult to adjust to accommodate cargo boxes of different sizes, resulting in low cargo turnover efficiency.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A new lightweight double-column stacker, comprising a base, a first column, a second column, a crossbeam, a cargo platform, a lifting drive mechanism, two telescopic fork mechanisms and a fork width adjustment mechanism, wherein the base is vertically connected to the first column and the second column at intervals, the upper ends of the first column and the second column are commonly connected to the crossbeam, the two sides of the cargo platform are slidingly connected to the first column and the second column respectively, the lifting drive mechanism is used to connect and drive the cargo platform to move vertically along the first column and the second column, two telescopic fork mechanisms are installed on the cargo platform through the fork width adjustment mechanism, the forks on the telescopic fork mechanisms can be extended and retracted back and forth, and the fork width adjustment mechanism is used to drive the two telescopic fork mechanisms to move closer or farther away.

[0008] To optimize the above technical solutions, specific measures taken also include:

[0009] Furthermore, the telescopic fork mechanism also includes a fork base and a telescopic drive mechanism. The fork base is installed on the cargo platform so as to be movable left and right through the fork width adjustment mechanism. The fork is slidably arranged on the upper end of the fork base so as to be movable forward and backward. The telescopic drive mechanism is used to drive the fork to move in the forward and backward direction on the fork base.

[0010] Furthermore, the telescopic drive mechanism includes a fork drive motor, a fork gear mechanism and a transmission chain. The fork drive motor is installed at the lower end of the fork base, and the output end of the fork drive motor is connected to the fork gear mechanism. The fork gear mechanism includes two output gears, and the two output gears are arranged at the front and rear ends of the same side of the fork base. The transmission chain surrounds and engages the two output gears, and the side wall of the fork is connected to the side of the transmission chain. The fork drive motor is used to drive the output gear to rotate, and uses the transmission chain to pull the fork to move in the forward and backward directions.

[0011] Furthermore, the fork width adjustment mechanism includes a cylinder, a slider and a track. The cargo platform is provided with a track in the left and right directions. A slider is slidably provided on the track. The telescopic fork mechanism is installed on the slider. The cylinder is used to connect and drive the slider to move in the left and right directions along the track.

[0012] Furthermore, it also includes a visual sensor, which is installed at the front end of the fork and is used to identify the size information of the cargo box. The visual sensor is electrically connected to the telescopic fork mechanism and the fork width adjustment mechanism respectively.

[0013] Furthermore, the left and right ends of the cargo platform are respectively provided with a clamping groove, and the clamping grooves are each provided with a first guide wheel. The first column and the second column are each provided with a vertical first slide groove. The left and right ends of the cargo platform are respectively clamped on the first column and the second column through the clamping grooves, and the first guide wheel is slidably arranged in the first slide groove on the same side.

[0014] Furthermore, a second guide wheel axially perpendicular to the first guide wheel is provided in the clamping groove at any one end or both ends of the cargo platform, and a vertical second slide groove is correspondingly provided on the first column or the second column, and the second guide wheel is slidably set in the second slide groove.

[0015] Furthermore, the lifting drive mechanism includes two drums, a lifting motor, a nano-enhanced steel wire rope and a fixed wheel. The lifting motor is installed on either side of the first column or the second column. The lifting motor includes two output ends and is respectively connected to the two drums. The nano-enhanced steel wire ropes wound on the two drums are respectively hung on the left and right sides of the cargo platform and connected through the fixed wheels installed on the beam. The lifting motor is used to drive the two drums to rotate synchronously to drive the cargo platform to move.

[0016] Furthermore, the lifting drive mechanism also includes a normally closed electromagnetic brake and a battery. A normally closed electromagnetic brake is provided between the cargo platform and the first column or the second column. The normally closed electromagnetic brake is used to limit the displacement of the cargo platform on the first column and the second column. The lifting motor is connected to the battery, and the battery is used to provide or recover electrical energy.

[0017] Furthermore, the crossbeam is provided with a ceiling rail guide wheel for sliding connection with the ceiling rail, the base is provided with a ground rail guide wheel for sliding connection with the ground rail, and the left and right sides of the base are respectively provided with a first drive wheel and a second drive wheel, and the first drive wheel and the second drive wheel are respectively driven synchronously by a drive motor and drive the base to move along the ground rail.

[0018] The beneficial effects of the present invention are:

[0019] The present invention provides two telescopic fork mechanisms and a fork width adjustment mechanism. When in use, the fork width adjustment mechanism can be controlled to accurately adjust the use positions of the two forks and the use width between the two forks according to the size information of the cargo box to match the corresponding cargo box size. The two telescopic fork mechanisms synchronously drive the forks on them to straighten to the specified position before performing forking operations. This solves the problem that the fork width of the existing double-column stacker is not easy to adjust to adapt to cargo boxes of different sizes, resulting in low cargo turnover efficiency. The adjustability of the forks when in use is increased, and the forking efficiency of goods is increased.

[0020] The present invention drives the transmission chain to move clockwise or counterclockwise through two output gears, thereby driving the fork to slide back and forth. At the same time, when in use, the movement range of the fork can be limited by the position where the side wall of the fork is connected to the side point of the transmission chain, which can directly avoid the problem of the fork slipping.

[0021] The present invention first identifies the size of the cargo box through a visual sensor. When the visual sensor identifies the cargo box size information, the controller converts the signal into an action instruction of the cylinder. The cylinder drives the slider according to the instruction, accurately adjusts the usable width between the two forks, and ensures that the forks can accurately pick up the goods.

[0022] The present invention utilizes a lifting motor to drive the cargo platform to move vertically upward. During the process of the cargo platform moving vertically downward, the gravitational potential energy of the cargo platform is utilized to drive the lifting motor to reverse. The lifting motor changes from an electric state to a power generation state, and converts the mechanical energy during the descent of the cargo platform into electrical energy. The generated electrical energy is transmitted and converted through corresponding circuits and stored in a battery for use in other actions of the device, thereby realizing energy recovery and reuse, improving the energy utilization rate of the device, and being more energy-efficient.

[0023] The present invention adopts a strategy of synchronous control of the first drive wheel and the second drive wheel, and symmetrically installs the dual drive motors on both sides of the base. This symmetrical layout is conducive to evenly distributing power on both sides of the device, enabling the device to move smoothly along the track. The symmetrical layout of the dual motors ensures that power is evenly distributed on both sides of the device, effectively avoiding shaking during startup, stop or operation due to uneven force on one side. At the same time, it can realize acceleration, deceleration, steering and other actions according to the control system instructions, and accurately and efficiently shuttle between shelves in a storage environment to complete mobile operations related to cargo storage and retrieval. During the installation process, it is necessary to ensure that the axis of the motor is parallel and concentric with the axis of the drive component to ensure the smoothness of power transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a new lightweight double-column stacker proposed by the present invention;

[0025] Figure 2 This is a structural front view of a novel lightweight double-column stacker proposed by the present invention;

[0026] Figure 3 This is a top view of the structure of the cargo platform of a new lightweight double-column stacker proposed by the present invention;

[0027] Figure 4 This is a structural schematic diagram of the telescopic drive mechanism of a novel lightweight double-column stacker proposed in the present invention;

[0028] Figure 5This is a schematic structural diagram of a fork width adjustment mechanism of a novel lightweight double-column stacker proposed in the present invention;

[0029] Figure 6 This is a structural schematic diagram of the first column of a novel lightweight double-column stacker proposed by the present invention;

[0030] Figure 7 This is a schematic diagram of the crossbeam connection of a new lightweight double-column stacker proposed in the present invention.

[0031] Figure markings: 1-first driving wheel; 2-anti-collision device; 3-driving motor; 4-normally closed electromagnetic brake; 5-reel; 6-lifting motor; 7-nano-reinforced steel wire rope; 8-first column; 9-fixed wheel; 10-crossbeam; 11-connecting flange; 12-second column; 13-cargo platform; 14-electrical integrated cabinet; 15-ground rail guide wheel; 16-second driving wheel; 17-shock-absorbing buffer; 18-fork; 19-first guide wheel; 20-second guide wheel; 21-visual sensor; 22-fork driving motor; 23-fork gear mechanism; 24-transmission chain; 25-high-strength bolt; 26-rubber shock-absorbing pad; 27-ceiling rail guide wheel; 28-cylinder; 29-track. DETAILED DESCRIPTION

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] As attached Figure 1 and attached Figure 2 As shown, a lightweight new double-column stacker according to an embodiment of the present invention includes a base, a first column 8, a second column 12, a crossbeam 10, a cargo platform 13, a lifting drive mechanism, two telescopic fork mechanisms and a fork width adjustment mechanism. The first column 8 and the second column 12 are vertically connected to the base at intervals, and the upper ends of the first column 8 and the second column 12 are commonly connected to the crossbeam 10. The two sides of the cargo platform 13 are slidingly connected to the first column 8 and the second column 12 respectively. The lifting drive mechanism is used to connect and drive the cargo platform 13 to move vertically along the first column 8 and the second column 12. Two telescopic fork mechanisms are installed on the cargo platform 13 through the fork width adjustment mechanism. The forks 18 on the telescopic fork mechanisms can be extended and retracted back and forth, and the fork width adjustment mechanism is used to drive the two telescopic fork mechanisms to move closer or farther away.

[0034] The present invention provides two telescopic fork mechanisms and a fork width adjustment mechanism. When in use, the fork width adjustment mechanism can be controlled to accurately adjust the use position of the two forks 18 and the use width between the two forks to match the corresponding cargo box size according to the cargo box size information. The two telescopic fork mechanisms synchronously drive the forks 18 on them to extend to the specified position before performing the forking operation. This solves the problem that the fork width of the existing double-column stacker is not easy to adjust to adapt to cargo boxes of different sizes, resulting in low cargo turnover efficiency. The adjustability of the forks 18 when in use is increased, and the forking efficiency of the cargo is increased.

[0035] In another specific embodiment based on the above, the telescopic fork mechanism also includes a fork base and a telescopic drive mechanism. The fork base is installed on the cargo platform 13 so as to be movable left and right through a fork width adjustment mechanism. The fork 18 is slidably arranged on the upper end of the fork base so as to be movable forward and backward. The telescopic drive mechanism is used to drive the fork 18 to move in the forward and backward direction on the fork base.

[0036] As attached Figure 3 and attached Figure 4 As shown, in a further specific embodiment, the telescopic drive mechanism includes a fork drive motor 22, a fork gear mechanism 23, and a transmission chain 24. The fork drive motor 22 is mounted at the lower end of the fork base. The output end of the fork drive motor 22 is connected to the fork gear mechanism 23. The fork gear mechanism 23 includes two output gears, which are arranged at the front and rear ends of the same side of the fork base. The transmission chain 24 surrounds and meshes with the two output gears. The side wall of the fork 18 is connected to the side point of the transmission chain 24. The fork drive motor 22 is used to drive the output gears to rotate, and the transmission chain 24 is used to pull the fork 18 to move forward and backward. In this way, during use, the two output gears can drive the transmission chain 24 to move clockwise or counterclockwise, thereby driving the fork 18 to slide forward and backward. At the same time, during use, the position where the side wall of the fork 18 is connected to the side point of the transmission chain 24 can limit the range of movement of the fork 18, thereby directly preventing the fork 18 from slipping.

[0037] As attached Figure 5 As shown, in another specific embodiment based on the above, the fork width adjustment mechanism includes a cylinder 28, a slider, and a track 29. The track 29 is provided on the cargo platform 13 in the left-right direction, and a slider slides on the track 29. The telescopic fork mechanism is mounted on the slider, and the cylinder 28 is used to connect and drive the slider to move left-right along the track 29. In this solution, two telescopic fork mechanisms can share a track 29 and be driven separately using corresponding cylinders 28 and sliders. Alternatively, two sets of fork width adjustment mechanisms are provided, each of which is mounted on the slider of one set of fork width adjustment mechanisms. The two sets of fork width adjustment mechanisms directly drive the two telescopic fork mechanisms.

[0038] Another specific embodiment based on the above further includes a visual sensor 21, mounted at the front end of the forks 18, for identifying container dimensions. The visual sensor 21 is electrically connected to the telescopic fork mechanism and the fork width adjustment mechanism. In this embodiment, a control system can be provided. During operation, the control system establishes a connection between the visual sensor 21 and the pneumatic cylinder 28 in the fork width adjustment mechanism. The visual sensor 21 first identifies the container dimensions. Once the visual sensor 21 identifies the container dimensions, a controller or other device converts the signal into an actuation command for the pneumatic cylinder 28. The cylinder 28 then actuates the slider in response to the command, precisely adjusting the usable width between the two forks 18 and ensuring that the forks 18 can accurately pick up cargo.

[0039] In another specific embodiment based on the above, the cargo platform 13 has a snap-fit groove at each end, each of which is equipped with a first guide wheel 19. Both the first column 8 and the second column 12 are equipped with vertical first chutes. The left and right ends of the cargo platform 13 are snap-fitted to the first column 8 and the second column 12 via the snap-fit grooves, respectively, and the first guide wheels 19 slide in the first chutes on the same side. Thus, the coordination between the snap-fit grooves, the first guide wheels 19 therein, and the first chutes increases the stability of the cargo platform 13 during movement.

[0040] In a further embodiment, a second guide wheel 20 axially perpendicular to the first guide wheel 19 is provided in a snap-in groove at one or both ends of the cargo platform 13. A corresponding second vertical chute is provided on the first column 8 or the second column 12. The second guide wheel 20 slides in the second chute. The coordination of the second guide wheel 20 and the second chute further enhances the stability of the cargo platform 13 during movement.

[0041] In another specific embodiment based on the above, the lifting drive mechanism includes two drums 5, a lifting motor 6, a nano-enhanced steel wire rope 7, and a fixed pulley 9. The lifting motor 6 is mounted on either side of the first column 8 or the second column 12. The lifting motor 6 includes two output terminals, each connected to the two drums 5. The nano-enhanced steel wire rope 7 wound on the two drums 5 is connected to the left and right sides of the cargo platform 13 via the fixed pulley 9 mounted on the crossbeam 10. The lifting motor 6 is used to drive the two drums 5 to rotate synchronously, thereby driving the cargo platform 13 to move. In this way, the lifting motor 6 can drive the two drums 5 to rotate synchronously to reel in the nano-enhanced steel wire rope 7, thereby driving the cargo platform 13 to move vertically upward.

[0042] During operation, one end of the nano-enhanced steel wire rope 7 is connected to the cargo platform 13, and the other end is wound around the drum 5. When a lift command is issued, the lift motor 6 activates the drum 5, driving the nano-enhanced steel wire rope 7. Leveraging its high strength, wear resistance, and fatigue resistance, the nano-enhanced steel wire rope 7 stably raises and lowers the cargo platform 13. During this process, the nano-enhanced steel wire rope 7 bears the weight of the cargo platform 13 and the cargo. Thanks to the enhanced effect of the nanomaterial, it effectively resists the wear and fatigue caused by frequent lifting and lowering, ensuring the safe and precise transportation of goods between shelves.

[0043] At the same time, the nano-reinforced steel wire rope 7 in this scheme uses a special preparation process to evenly add nanomaterials to the steel wire manufacturing process of the steel wire rope. Powder metallurgy, chemical plating and other methods can be used to make the nanomaterials evenly distributed inside and on the surface of the steel wire, thereby enhancing the microstructure of the steel wire, improving its strength, wear resistance and fatigue resistance, and extending the service life of the steel wire rope.

[0044] In a further specific embodiment, the lifting drive mechanism also includes a normally closed electromagnetic brake 4 and a battery. A normally closed electromagnetic brake 4 is provided between the cargo platform 13 and the first column 8 or the second column 12. The normally closed electromagnetic brake 4 is used to limit the displacement of the cargo platform 13 on the first column 8 and the second column 12. The lifting motor 6 is connected to the battery, and the battery is used to provide or recover electrical energy.

[0045] Thus, during normal operation, the normally closed electromagnetic brake 4 remains open under the action of electromagnetic force, allowing the device to operate normally. When an abnormal situation is detected, such as overspeed or collision warning, or when deceleration or braking is required, the electromagnetic force supply to the normally closed electromagnetic brake 4 is immediately cut off. The brake spring in the normally closed electromagnetic brake 4 should have an appropriate elastic coefficient and preload to ensure that the friction plate can be quickly pressed against the brake disc when the electromagnetic force disappears, achieving braking through friction. The normally closed electromagnetic brake 4 has the characteristics of fast response and reliable braking, which can ensure the safety of the stacker crane and its surrounding environment.

[0046] At the same time, when in use, the above-mentioned lifting motor 6 can be used to drive the cargo platform 13 to move vertically upward. During the process of the cargo platform 13 moving vertically downward, the gravitational potential energy of the cargo platform 13 is used to drive the lifting motor 6 to reverse, and the lifting motor 6 is converted from the electric state to the power generation state, converting the mechanical energy of the cargo platform 13 during the descent process into electrical energy. The generated electrical energy is transmitted and converted through the corresponding circuit and stored in the battery for use in other operations of the device, realizing energy recovery and reuse, improving the energy utilization rate of the device, and saving more energy. During this process, the normally closed electromagnetic brake 4 can assist in stopping the cargo platform 13 during the descent process.

[0047] The battery and control system in this solution can be set in the electrical integrated cabinet 14 as needed, and the electrical integrated cabinet 14 can be installed on either side of the first column 8 or the second column 12.

[0048] In another specific embodiment based on the above, the crossbeam 10 is provided with a ceiling rail guide wheel 27 for slidingly connecting to the ceiling rail, the base is provided with a ground rail guide wheel 15 for slidingly connecting to the ground rail, and the left and right sides of the base are respectively provided with a first drive wheel 1 and a second drive wheel 16. The first drive wheel 1 and the second drive wheel 16 are respectively driven synchronously by a drive motor 3 and drive the base to move along the ground rail.

[0049] In this solution, a strategy of synchronously controlling the first drive wheel 1 and the second drive wheel 16 is adopted, and the dual drive motors 3 are symmetrically installed on both sides of the base. This symmetrical layout is conducive to evenly distributing power on both sides of the device, enabling the device to move smoothly along the track. The symmetrical layout of the dual motors ensures that power is evenly distributed on both sides of the device, effectively avoiding shaking caused by uneven force on one side during startup, stopping, or operation. At the same time, acceleration, deceleration, steering, and other actions can be achieved according to the control system instructions, allowing the device to accurately and efficiently shuttle between shelves in a storage environment to complete mobile operations related to cargo storage and retrieval. During the installation process, it is necessary to ensure that the axis of the motor is parallel and concentric with the axis of the drive component to ensure smooth power transmission.

[0050] As attached Figure 6 and attached Figure 7 As shown, in the above solution, bumpers 2 can also be installed on both sides of the base. Shock absorbers 17 and rubber shock-absorbing pads 26 are respectively installed at the upper end of the base and the lower end of the crossbeam 10, and along the motion path of the cargo platform 13. The shape, thickness, and hardness of the rubber shock-absorbing pads 26 can be designed based on the size of the connection and the load requirements to ensure sufficient vibration reduction. When installing the shock absorbers 17 and rubber shock-absorbing pads 26, ensure that they are tightly and securely connected to the other structures to avoid loosening or displacement during operation, which would affect the vibration reduction effect.

[0051] The first and second columns 8, 12 can be connected to the crossbeam 10 and other structures via the connecting flange 11 and high-strength bolts 25. Rubber shock-absorbing pads 26 can be installed around the connecting flange 11 and the high-strength bolts 25 to effectively reduce the transmission of vibration, reduce stress at the connection, and improve structural stability. The high-strength bolts 25 are connected to the connecting surfaces of the first and second columns 8, 12 and the crossbeam 10. The bolts can be evenly arranged on all four sides, ensuring consistent lateral and longitudinal spacing between the bolts. This enhances the reliability of the connection between the first and second columns 8, 12 and the crossbeam 10, improves the strength and stability of the connection between the first and second columns 8, 12 and the crossbeam 10, and reduces stacker failures caused by loose or deformed connection points.

[0052] The structure of this solution can be made of high-performance aluminum alloy materials. During the manufacturing process, precision casting or extrusion molding is adopted. Under the premise of ensuring the strength and rigidity of the first column 8 and the second column 12, the deadweight of the first column 8 and the second column 12 is reduced, thereby improving the operating efficiency and energy utilization of the stacker. Specifically, the first column 8 and the second column 12 can adopt a hollow rectangular cross-section column structure. When manufacturing the hollow rectangular columns, a seamless welding process is adopted to ensure the sealing and integrity of the cross-section. Compared with traditional solid rectangular columns, with the same material usage, the structural strength and stability of the first column 8 and the second column 12 can be improved, and the bending and torsion resistance of the columns can be enhanced.

[0053] These motors can be high-performance permanent magnet synchronous motors (PMSMs), which improve efficiency and power density while reducing energy consumption and heat generation. With their high efficiency, energy efficiency, and high power density, PMSMs can provide more powerful power for stackers, increasing their operating speed and acceleration. Select the appropriate model of high-performance PMSM based on the stacker's load characteristics, operating speed, and acceleration requirements.

[0054] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", etc. cited in the invention are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0055] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should be considered within the scope of protection of the present invention.

Claims

1. A new lightweight double-column stacker, characterized by: The utility model comprises a base, a first column (8), a second column (12), a crossbeam (10), a cargo platform (13), a lifting drive mechanism, two telescopic fork mechanisms and a fork width adjustment mechanism, wherein the base is vertically connected with the first column (8) and the second column (12) at intervals, the upper ends of the first column (8) and the second column (12) are commonly connected with the crossbeam (10), the two sides of the cargo platform (13) are respectively slidably connected with the first column (8) and the second column (12), the lifting drive mechanism is used to connect and drive the cargo platform (13) to move vertically along the first column (8) and the second column (12), the cargo platform (13) is equipped with two telescopic fork mechanisms through the fork width adjustment mechanism, the forks (18) on the telescopic fork mechanisms can be extended and retracted, and the fork width adjustment mechanism is used to drive the two telescopic fork mechanisms to move closer or farther away.

2. A lightweight new double-column stacker according to claim 1, characterized in that: The telescopic fork mechanism also includes a fork base and a telescopic drive mechanism. The fork base is mounted on the cargo platform (13) so as to be movable left and right through the fork width adjustment mechanism. The fork (18) is slidably mounted on the upper end of the fork base so as to be movable forward and backward. The telescopic drive mechanism is used to drive the fork (18) to move forward and backward on the fork base.

3. A lightweight new double-column stacker according to claim 2, characterized in that: The telescopic drive mechanism comprises a fork drive motor (22), a fork gear mechanism (23) and a transmission chain (24). The fork drive motor (22) is mounted at the lower end of the fork base. The output end of the fork drive motor (22) is connected to the fork gear mechanism (23). The fork gear mechanism (23) comprises two output gears. The two output gears are arranged at the front and rear ends of the same side of the fork base. The transmission chain (24) surrounds and meshes with the two output gears. The side wall of the fork (18) is connected to the side of the transmission chain (24). The fork drive motor (22) is used to drive the output gear to rotate, and uses the transmission chain (24) to pull the fork (18) to move in the front and rear directions.

4. The novel lightweight double-column stacker according to claim 1, characterized in that: The fork width adjustment mechanism comprises a cylinder (28), a slider and a track (29); the track (29) is provided on the cargo platform (13) in the left and right directions; a slider is provided on the track (29); the telescopic fork mechanism is mounted on the slider; the cylinder (28) is used to connect and drive the slider to move in the left and right directions along the track (29).

5. The novel lightweight double-column stacker according to claim 1, characterized in that: It also includes a visual sensor (21), which is installed at the front end of the fork (18) and is used to identify the size information of the cargo box. The visual sensor (21) is electrically connected to the telescopic fork mechanism and the fork width adjustment mechanism respectively.

6. The novel lightweight double-column stacker according to claim 1, characterized in that: The left and right ends of the cargo platform (13) are respectively provided with a clamping groove, and the clamping grooves are both provided with a first guide wheel (19), and the first column (8) and the second column (12) are both provided with a vertical first slide groove. The left and right ends of the cargo platform (13) are respectively clamped on the first column (8) and the second column (12) through the clamping grooves, and the first guide wheel (19) is slidably set in the first slide groove on the same side.

7. The novel lightweight double-column stacker according to claim 6, characterized in that: A second guide wheel (20) axially perpendicular to the first guide wheel (19) is provided in a clamping groove at any one end or both ends of the cargo platform (13), and a vertical second slide groove is correspondingly provided on the first column (8) or the second column (12), and the second guide wheel (20) is slidably arranged in the second slide groove.

8. The novel lightweight double-column stacker according to claim 1, characterized in that: The lifting drive mechanism comprises two drums (5), a lifting motor (6), a nano-enhanced steel wire rope (7) and a fixed wheel (9); the lifting motor (6) is installed on either side of the first column (8) or the second column (12); the lifting motor (6) comprises two output ends respectively connected to the two drums (5); the nano-enhanced steel wire rope (7) wound on the two drums (5) is respectively hung on the left and right sides of the cargo platform (13) through the fixed wheel (9) installed on the beam (10) and connected; the lifting motor (6) is used to drive the two drums (5) to rotate synchronously to drive the cargo platform (13) to move.

9. The novel lightweight double-column stacker according to claim 8, characterized in that: The lifting drive mechanism further comprises a normally closed electromagnetic brake (4) and a battery. A normally closed electromagnetic brake (4) is provided between the cargo platform (13) and the first column (8) or the second column (12). The normally closed electromagnetic brake (4) is used to limit the displacement of the cargo platform (13) on the first column (8) and the second column (12). The lifting motor (6) is connected to the battery, and the battery is used to provide or recover electric energy.

10. The novel lightweight double-column stacker according to claim 1, characterized in that: The crossbeam (10) is provided with a ceiling rail guide wheel (27) for slidingly connecting with the ceiling rail, the base is provided with a ground rail guide wheel (15) for slidingly connecting with the ground rail, and the left and right sides of the base are respectively provided with a first driving wheel (1) and a second driving wheel (16), and the first driving wheel (1) and the second driving wheel (16) are respectively driven synchronously by a driving motor (3) and drive the base to move along the ground rail.

Images