Stacking machine with height-adjustable cargo carrying table

Abstract

The invention relates to the technical field of stacking machines, and discloses a stacking machine with a height-adjustable cargo carrying table, which comprises a stand column, an upper cross beam and a walking beam, the stand column, the upper cross beam and the walking beam form a frame structure, a lifting driving motor is mounted on the lower part of the right side of the stand column, and the cargo carrying table is mounted on the inner side of the stand column. And a lifting chain for dragging the cargo carrying table to move up and down is wound outside the lifting driving motor, a second chain wheel is installed in one side of the upper cross beam, and third chain wheels are installed on the two sides in the upper cross beam. According to the stacking machine with the height-adjustable cargo carrying table, the tension of the whole cargo carrying table can be improved through the steel wire rope by utilizing pulley traction, the steel wire rope is connected with the cargo carrying table, the torque needed by a lifting gear motor is reduced, the lifting driving power and the size of a speed reducer base are reduced, space is saved, cost is low, and energy is saved; the energy loss is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of stackers, in particular to a stacker with an adjustable cargo platform height. Background Art

[0002] A stacker with an adjustable loading platform (also known as an adjustable height stacker or adjustable height stacker transporter) is a device specially designed for use in warehousing, logistics and other industries. It can complete tasks such as stacking and transporting goods by adjusting the height of the loading platform.

[0003] The existing stacker is a device that uses a lifting device to adjust the height of the loading platform to stack different goods on the loading platform. However, the following problems exist during the use of the stacker: Problem 1: Due to the limited height space, the weight of the goods and the height of the goods are certain, and the allowable height of the warehouse is certain. In order to store more goods and achieve the greatest possible space utilization, the distance between the highest point of the stacker and the loading platform can only be compressed as much as possible. The size of the movable pulley installed in the loading platform is determined by the diameter of the wire rope. Therefore, the greater the weight of the loading platform plus the goods, the larger the movable pulley in the loading platform and the higher the height of the loading platform. When the height of the goods is lower than the height of the top surface of the loading platform, it is a waste of height space; Problem 2: The structure adopts a T-type guide rail for linear elevator connection, which has high processing accuracy and installation difficulty. At the same time, this structure is not convenient for using counterweights, the reduction motor is large, the cost is increased, and debugging is difficult. In order to solve the above difficulties and save costs, this structure is developed. So far, we have proposed a stacker with adjustable loading platform height. Summary of the Invention

[0004] In response to the shortcomings of existing stackers with adjustable loading platforms, the present invention provides a stacker with adjustable loading platforms. The equipment adopts chain conveying to improve the stability of the equipment during height adjustment. The equipment is installed with a counterweight, and the counterweight is arranged inside the column using a pulley set, which improves the stability of the counterweight installation and saves space, thereby solving the problems raised in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a stacker with an adjustable cargo platform height, comprising a column, an upper crossbeam and a walking beam, wherein the column, the upper crossbeam and the walking beam form a frame structure, a lifting drive motor is installed at the lower part of the right side of the column, a cargo platform is installed on the inner side of the column, drive sprockets are installed on both sides of the lifting drive motor, and a lifting chain is engaged on the outside for pulling the cargo platform up and down, a second sprocket is installed inside one side of the upper crossbeam, and a third sprocket is installed on both sides of the inside of the upper crossbeam, an auxiliary frame is installed on the left side of the column, a pulley is installed inside the upper crossbeam, a steel wire rope is wound around the outside of the pulley, and a counterweight is fixed to one end of the steel wire rope.

[0006] Preferably, the lifting drive motor includes a motor frame, the motor frame is installed on the side of the column, the motor is installed inside the motor frame, two sets of fourth sprockets are installed outside the motor output shaft, and two sets of fifth sprockets are installed inside the motor frame and on the side of the motor. The lifting chain is sequentially wound around and engaged with the outside of the fourth sprocket and the fifth sprocket.

[0007] Preferably, a first sprocket for pulling a lifting chain to move left and right is installed at the lower end of the walking beam, the lifting chain is wound around the outside of the first sprocket, and a space for storing the lifting chain is provided on the side of the walking beam.

[0008] Preferably, the inner side of the column is fixedly connected with a T-shaped guide rail for the elevator, and the side safety clamps of the cargo platform are sleeved on both sides of the T-shaped guide rail for the elevator.

[0009] Preferably, holding wheels are installed on both sides of the cargo platform, and the holding wheels are fitted on the outside of the columns.

[0010] Preferably, three groups of pulleys are installed, and the three groups of pulleys are arranged crosswise with each other, and the pulleys are installed on both sides of the upper part of the upper beam.

[0011] Preferably, a wire rope pulley for limiting the moving trajectory of the wire rope is fixed to the front end of the upper crossbeam, and a lifting eye screw is installed on the upper part of one side of the cargo platform. The wire rope passes through the wire rope clamp and is fixed to the upper part of the lifting eye screw.

[0012] Preferably, a cavity is provided inside the column, and the counterweight block is movably sleeved inside the cavity.

[0013] Preferably, the second sprocket includes two groups of sprockets, and two groups of lifting chains are installed, and the two groups of lifting chains are movably connected to the outside of the two groups of sprockets respectively. One group of second sprockets extends to the lower part of the sprocket and is fixed to the upper part of one side of the cargo platform, and the other group of second sprockets is sequentially wrapped around the outside of the second sprocket and the third sprocket, pulled to the other side of the upper beam, and fixed to the other side of the upper part of the cargo platform.

[0014] Preferably, a fork for picking up the cargo is installed on the upper part of the cargo platform, the fork is located at the front end of the cargo platform, the cargo is placed on the upper part of the cargo platform, and a detection bracket is provided on the outside of the cargo platform.

[0015] Compared with the existing stacker with adjustable loading platform height, the present invention has the following beneficial effects:

[0016] 1. The stacker with adjustable loading platform has a counterweight block set inside the column, and the column, upper crossbeam and walking beam are designed as a square frame, which improves space utilization and ensures stability when the equipment is lifted.

[0017] 2. The stacker with adjustable loading platform adopts a reducer to drive the chain transmission, so that the chain is connected to the loading platform through the adjusting screw to form a closed loop, making the lifting operation more reliable.

[0018] 3. The stacker with adjustable cargo platform height can increase the pulling force of the cargo platform as a whole by using steel wire rope to pulley traction. It is connected to the cargo platform by steel wire rope, which reduces the torque required by the lifting and reduction motor, reduces the power of the lifting drive and the size of the reducer base, saves space, reduces costs, and saves energy, and reduces energy loss when the lifting drive motor starts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the back structure of the main body of the present invention;

[0021] Figure 3 It is a schematic diagram of the front view structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the main structure of the lifting drive motor of the present invention;

[0023] Figure 5 This is a partial side view of the structure of the lifting drive motor of the present invention;

[0024] Figure 6 This is a partially enlarged structural diagram of the upper crossbeam of the present invention;

[0025] Figure 7 This is a schematic diagram of the side structure of the upper crossbeam of the present invention;

[0026] Figure 8 It is a schematic diagram of the partially enlarged structure of the cargo platform of the present invention.

[0027] In the figure: 1. Column; 2. Upper crossbeam; 3. Walking beam; 4. T-shaped guide rail for elevator; 5. Lifting drive motor; 51. Motor frame; 52. Motor; 53. Fourth sprocket; 54. Fifth sprocket; 6. Lifting chain; 7. First sprocket; 8. Second sprocket; 9. Third sprocket; 10. Cargo platform; 11. Fork; 12. Holding wheel; 13. Auxiliary frame; 14. Eye screw; 15. Pulley; 16. Polyurethane buffer limit device; 17. Wire rope; 18. Counterweight. DETAILED DESCRIPTION

[0028] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 , a stacker with an adjustable cargo platform height, including a column 1, an upper crossbeam 2 and a walking beam 3. The column 1, the upper crossbeam 2 and the walking beam 3 form a frame structure. The frame structure reduces the volume of the equipment and plays a role in saving space. A lifting drive motor 5 is installed at the lower part of the right side of the column 1. A cargo platform 10 is installed on the inner side of the column 1. The cargo platform 10 drives the goods to be lifted and transported. A lifting chain 6 is wound around the outside of the lifting drive motor 5 to pull the cargo platform 10 up and down. When the lifting chain 6 is active, the lifting chain 6 drives the height of the cargo platform 10 to be pulled and adjusted. A second sprocket 8 is installed inside one side of the upper crossbeam 2, and two sides of the upper crossbeam 2 are installed inside. The third sprocket 9, the second sprocket 8 and the third sprocket 9 drive the lifting chain 6 to limit its moving trajectory, and the lifting chain 6 drives the height of the cargo platform 10 to be pulled and adjusted. An auxiliary frame 13 is installed on the left side of the column 1, and a pulley 15 is installed inside the upper beam 2. A steel wire rope 17 is wrapped around the outside of the pulley 15. A counterweight 18 is fixed to one end of the steel wire rope 17, and the other end is fixed to the upper part of the cargo platform 10. The counterweight 18 increases the upward pulling force on the cargo platform 10 to avoid the cargo platform 10 being too heavy, resulting in excessive torque when the lifting drive motor 5 reverses rotation, resulting in increased energy consumption. A counterweight 18 is fixed to one end of the steel wire rope 17.

[0030] See also Figure 4 and Figure 5The lifting drive motor 5 includes a motor frame 51, which is installed on the side of the column 1. A motor 52 is installed inside the motor frame 51, and two sets of fourth sprockets 53 are installed on the outside of the output shaft of the motor 52. Two sets of fifth sprockets 54 are installed inside the motor frame 51 and on the side of the motor 52. The lifting chain 6 is wound around the outside of the fourth sprocket 53 and the fifth sprocket 54 in sequence. By starting the motor 52, the motor 52 drives the fourth sprocket 53 to rotate. At the same time, the fifth sprocket 54 is installed on both sides of the fourth sprocket 53, that is, the fourth sprocket 53 drives the fifth sprocket 54 to rotate. At the same time, the lifting chain 6 is wound around the fourth sprocket 53, that is, during the starting process of the motor 52, the fourth sprocket 53 and the fifth sprocket 54 can be driven to rotate, and the movement of the lifting chain 6 is controlled. The lifting chain 6 drives the overall height of the cargo platform 10 to be pulled and moved.

[0031] See also Figure 3 The lower end of the walking beam 3 is equipped with a first sprocket 7 for pulling the lifting chain 6 to move left and right. The lifting chain 6 is wrapped around the outside of the first sprocket 7, and a space for storing the lifting chain 6 is provided on the side of the walking beam 3. The first sprocket 7 is installed at the lower end of the walking beam 3. The first sprocket 7 pulls and drives the lifting chain 6 to move left and right. When the cargo platform 10 moves upward, the first sprocket 7 pulls and drives the lifting chain 6 to move to one side of the column 1 and provides activity space for the lifting chain 6 to ensure that the lifting chain 6 can move stably.

[0032] See also Figure 2 The inner side of the column 1 is fixedly connected to the elevator T-shaped guide rail 4, and the side surfaces of the cargo platform 10 are sleeved on both sides of the safety clamp sleeve elevator T-shaped guide rail 4. The elevator T-shaped guide rail 4 is fixed through the inner side of the column 1. At the same time, the cargo platform 10 is movably sleeved on the inner side of the column 1. The elevator T-shaped guide rail 4 limits the movable trajectory of the cargo platform 10 to ensure that the cargo platform 10 maintains stability when it moves up and down.

[0033] See also Figure 1 , holding wheels 12 are installed on both sides of the cargo platform 10, and the holding wheels 12 are fitted on the outside of the column 1. Holding wheels 12 are installed on both sides of the cargo platform 10, wherein the holding wheels 12 are fitted on the outside of the column 1, and a safety clamp is installed outside the cargo platform. It is used in conjunction with the traction wheel, wire rope and speed limiting wheel. When the cargo platform 10 sinks downward, the cargo platform descends faster than the speed limit of the speed limiting wheel. The safety clamp is locked by the connecting rod on the cargo platform, which is fitted on the T-shaped guide rail 4 for the elevator installed inside the column 1, to prevent the cargo platform 10 from falling and causing damage to the overall structure of the cargo platform 10, and plays a role in preventing the equipment from sinking and causing damage.

[0034] See also Figure 6There are three groups of pulleys 15 installed, and the three groups of pulleys 15 are arranged crosswise with each other. The pulleys 15 are installed on both sides of the upper part of the upper beam 2. There are three groups of pulleys 15, and the pulleys 15 are installed on both sides of the upper part of the upper beam 2. At the same time, after the wire rope 17 is wrapped around the outside of the pulley 15, a counterweight 18 is provided at one end of the wire rope 17, and the other end is fixed to the upper part of the cargo platform 10. The gravity of the counterweight 18 is used to pull the cargo platform 10. The counterweight is lighter than the total weight of the cargo platform and the cargo. A wire rope is used to connect the cargo platform and the counterweight. The wire rope structure has a low cost. Increasing the counterweight can reduce the power of the reduction motor and achieve energy saving.

[0035] See also Figure 7 The front end of the upper crossbeam 2 is fixed with a polyurethane buffer limit device that limits the moving trajectory of the cargo platform. A lifting eye screw 14 is installed on the upper part of one side of the cargo platform 10. The wire rope 17 passes through the wire rope clamp 16 and is fixed to the upper part of the lifting eye screw 14. It is wound around the lower end of the upper crossbeam 2 through the wire rope pulley 15. The wire rope 17 extends to the inside of the wire rope pulley 15. The polyurethane buffer limit device limits the moving trajectory of the cargo platform 10 to ensure that the overall up and down movement of the cargo platform 10 remains stable.

[0036] See also Figure 3 A cavity is opened inside the column 1, and the counterweight block 18 is movably sleeved inside the cavity. A cavity is opened inside the column 1, wherein the counterweight block 18 is movably sleeved inside the cavity opened inside the column 1. The cavity limits the movable trajectory of the counterweight block 18, while ensuring that the counterweight block 18 is traction-balancing the cargo platform 10, reducing the movable space, thereby achieving space utilization.

[0037] See also Figure 6 The second sprocket 8 includes two sets of gears, and the lifting chain 6 is installed with two sets. The two sets of lifting chains 6 are movably engaged with the outside of the two sets of sprockets, one of which is the second sprocket 8 extending to the lower part of the sprocket and fixed to the upper part of one side of the cargo platform 10. The other set of second sprockets 8 is sequentially wrapped around the outside of the second sprocket 8 and the third sprocket 9, pulled to the other side of the upper beam 2, and fixed to the other side of the upper part of the cargo platform 10. Two sets of sprockets are installed through the second sprocket 8, of which the lifting chains 6 are also installed with two sets, two sets of lifting chains 6 are wrapped around the outside of the second sprocket 8, one set of lifting chains 6 extends to the lower end and is fixed to one side of the upper part of the cargo platform 10, and the other set of lifting chains 6 extends to the outside of the other two sets of third sprockets 9, and the lifting chains 6 are attached to the outside of the third sprocket 9 and fixed to the other side of the upper part of the cargo platform 10, and the two sets of cargo platforms 10 are sequentially fixed to the upper part of the cargo platform 10, thereby improving the stability of the cargo platform 10 when it moves up and down.

[0038] See also Figure 1A fork 11 for picking up the goods is installed on the upper part of the cargo platform 10. The fork 11 is located at the front end of the cargo platform 10. The goods are placed on the upper part of the cargo platform 10, and a detection bracket is provided on the outside of the cargo platform 10. The fork 11 is installed at the front end of the cargo platform 10. The fork 11 picks up the goods to be stacked, and the goods can be placed on the upper part of the cargo platform 10. At the same time, a detection bracket is installed on the outside of the cargo platform 10, and the railing improves the stability of the overall support.

[0039] Working principle: When in use, a square frame is formed by two groups of columns 1, an upper crossbeam 2 and a walking beam 3. At the same time, the cargo platform 10 is arranged on the inner side of the column 1, and a lifting drive motor 5 is installed on the side of the column 1. At the same time, the lifting chain 6 is sequentially wound around the outside of the lifting drive motor 5, and the lifting chain 6 extends from the side of the column 1 to the upper end, and is sequentially wound around the outside of the second sprocket 8 and the third sprocket 9. At the same time, the lifting chain 6 is fixed on both sides of the upper part of the cargo platform 10, and the counterweight block 18 is arranged inside the column 1, and a steel wire rope 17 is installed outside the counterweight block 18, and the steel wire rope 17 is wound around the outside of the pulley 15, and the steel wire rope 17 extends to Inside the polyurethane buffer limit device 16, the steel wire rope 17 is fixed to the lifting eye screw 14, and under the action of the counterweight block 18, the cargo platform 10 is pulled. When the cargo platform 10 carries heavy items, the steel wire rope is connected to the cargo platform, which reduces the torque required by the lifting and reduction motor, reduces the power of the lifting drive and the size of the reducer base, saves space, is low in cost, and saves energy. The cargo platform 10 is fixed by the lifting chain 6, so that the chain is connected to the cargo platform through the adjusting screw rod to form a closed loop, and the lifting operation is more reliable. That is, when the lifting drive motor 5 is started and the lifting chain 6 is controlled to move, the stability of the cargo platform 10 can be maintained when adjusting the height.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A stacker with an adjustable cargo platform height, comprising a column (1), an upper crossbeam (2) and a walking beam (3), wherein the column (1), the upper crossbeam (2) and the walking beam (3) form a frame structure, a lifting drive motor (5) is installed at the lower part of the right side of the column (1), and a cargo platform (10) is installed on the inner side of the column (1), characterized in that: The outside of the lifting drive motor (5) is wound with a lifting chain (6) for pulling the cargo platform (10) up and down, a second sprocket (8) is installed inside one side of the upper crossbeam (2), and third sprockets (9) are installed on both sides of the interior of the upper crossbeam (2). An auxiliary frame (13) is installed on the left side of the column (1), and a pulley (15) is installed inside the upper crossbeam (2). A steel wire rope (17) is wound around the outside of the pulley (15), and a counterweight (18) is fixed to one end of the steel wire rope (17).

2. The stacker with an adjustable cargo platform height according to claim 1, characterized in that: The lifting drive motor (5) includes a motor frame (51), the motor frame (51) is installed on the side of the column (1), the motor frame (51) is installed with a motor (52), the outside of the output shaft of the motor (52) is installed with two sets of fourth sprockets (53), the inside of the motor frame (51) and on the side of the motor (52) are installed with two sets of fifth sprockets (54), and the lifting chain (6) is wound around the outside of the fourth sprocket (53) and the fifth sprocket (54) in sequence.

3. The stacker with an adjustable cargo platform according to claim 1, characterized in that: A first sprocket (7) for pulling a lifting chain (6) to move left and right is installed at the lower end of the walking beam (3); the lifting chain (6) is wound around the outside of the first sprocket (7); and a space for storing the lifting chain (6) is provided on the side of the walking beam (3).

4. The stacker with an adjustable cargo platform according to claim 1, characterized in that: The inner side of the column (1) is fixedly connected to a T-shaped guide rail (4) for an elevator, and the side safety clamps of the cargo platform (10) are sleeved on both sides of the T-shaped guide rail (4) for an elevator.

5. The stacker with an adjustable cargo platform height according to claim 1, characterized in that: Holding wheels (12) are installed on both sides of the cargo platform (10), and the holding wheels (12) are fitted on the outside of the column (1).

6. The stacker with an adjustable cargo platform height according to claim 1, characterized in that: The pulleys (15) are installed in three groups, and the three groups of pulleys (15) are arranged crosswise with each other. The pulleys (15) are installed on both sides of the upper part of the upper beam (2).

7. The stacker with an adjustable cargo platform height according to claim 1, characterized in that: A wire rope traction (16) for limiting the moving trajectory of the wire rope (17) is fixed to the front end of the upper crossbeam (2), and a lifting eye screw (14) is installed on the upper part of one side of the cargo platform (10), and the wire rope (17) passes through the wire rope clamp (16) and is fixed to the upper part of the lifting eye screw (14).

8. The stacker with an adjustable cargo platform height according to claim 1, characterized in that: A cavity is provided inside the column (1), and the counterweight (18) is movably sleeved inside the cavity.

9. The stacker with an adjustable cargo platform height according to claim 1, characterized in that: The second sprocket (8) includes two sets of gears, and the lifting chain (6) is installed with two sets. The two sets of lifting chains (6) are movably engaged with the outside of the two sets of gears respectively. One set of the second sprocket (8) extends to the lower part of the gear and is fixed to the upper part of one side of the cargo platform (10). The other set of the second sprocket (8) is wound around the outside of the second sprocket (8) and the third sprocket (9) in sequence, pulled to the other side of the upper beam (2), and fixed to the other side of the upper part of the cargo platform (10).

10. The stacker with an adjustable cargo platform height according to claim 1, characterized in that: A fork (11) for picking up goods is installed on the upper part of the cargo platform (10), and the fork (11) is located at the front end of the cargo platform (10). The goods are placed on the upper part of the cargo platform (10), and a detection bracket is provided on the outside of the cargo platform (10).

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