Material ton bag transferring and grabbing device for chemical plant

Abstract

The invention discloses a material ton bag transferring and grabbing device for a chemical plant, and belongs to the field of grabbing devices.The material ton bag transferring and grabbing device comprises a main body frame and a ton bag body, the bottom face of the main body frame is further provided with a set of grabbing mechanisms which are in bilateral symmetry, and after a lifting belt of the ton bag body is placed on grabbing tools which are in bilateral symmetry, the grabbing tools are used for grabbing the ton bag body. The second gear motor drives the output end to drive the output end of the first reverser to rotate, the first reverser drives the output end of the second reverser to rotate through the first connecting shaft, the second reverser drives the output end of the grabbing tool to rotate through the second connecting shaft, and therefore the purpose of grabbing the ton bag body is achieved. The four standard ton bags can be grabbed and transferred at a time through the arranged symmetrical grabbing mechanisms, the grabbing efficiency is improved, the transferring work efficiency is greatly improved, and the ton bag grabbing device has the advantages of being high in reliability, large in load and stable in grabbing when used for grabbing ton bag bodies.

Description

Technical Field

[0001] The invention relates to the field of grabbing devices, and in particular to a grabbing device for transporting bulk bags of materials in chemical plants. Background Art

[0002] Ton bags, also known as ton bags or bulk bags, are large flexible packaging containers used to transport and store bulk materials. In chemical plants, they are often used to package and transport various solid or liquid chemicals, such as fertilizers, pesticides, coatings, etc. In chemical plants, ton bag grabbers are an important loading and unloading tool, mainly used to grab, carry and stack ton bag materials.

[0003] In the prior art, a Chinese invention patent with a publication number of "CN113336069B" and a patent name of "A sling for automatically grabbing ton bags" discloses a device for grabbing ton bags. The patent records "a sling for automatically grabbing ton bags disclosed in the present invention has a simple structure, does not require additional manual assistance, and has a high degree of automation; the output end of the driving motor is connected to a worm, and a worm gear is provided at the middle position of the outer edge surface of the arc hook to mesh with the worm, and the worm gear mechanism has a self-locking function, which can effectively prevent the arc hook from accidentally retreating and causing the ton bag to be unhooked; in addition, the movable pulley assembly is connected to the top of the shell through a hydraulic motor, and photoelectric switches are provided at the positions corresponding to the two openings at the bottom of the shell, that is, when the photoelectric switch is blocked by the sling of the ton bag, it can determine that the line between the openings on both sides of the bottom of the shell is parallel to the sling of the ton bag, and can automatically trigger the rotation of the hydraulic motor, thereby ensuring that the arc hook can smoothly penetrate into the sling of the ton bag" and other technical solutions;

[0004] However, the following problems may occur in the actual use of this technical solution: only one ton bag can be grabbed at a time to realize loading and unloading operations, resulting in low grabbing efficiency when grabbing ton bags and reduced work efficiency. At the same time, it is difficult to rotate and change the position of the ton bag during the process of transshipment and loading. Different transport vehicles may have different size, load and shape restrictions, which makes it difficult to adjust the position of the ton bag in the carriage or transport vehicle, making the space utilization rate of the transport vehicle low, increasing the transportation cost, and thus reducing the flexibility of the use of the ton bag grabber;

[0005] Therefore, in order to solve the above technical problems, the present invention proposes a material ton bag transfer grabbing device for a chemical plant. Summary of the invention

[0006] The main purpose of the present invention is to provide a bulk bag transfer and grabbing device for use in chemical plants, which can effectively solve the problems in the background technology.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A material ton bag transfer grabbing device for a chemical plant comprises a main frame and a ton bag body, a rotating mechanism is arranged on the top surface of the main frame, and the rotating mechanism comprises a mounting support, an external gear slewing bearing, a first reduction motor and a driving gear, the external gear slewing bearing is fixedly connected to the bottom surface of the mounting support, and the first reduction motor is fixedly connected to the top surface of the mounting support, the driving gear is fixedly connected to the output end of the first reduction motor, and the driving gear is meshed with the external gear slewing bearing, a group of left-right symmetrical grabbing mechanisms are also arranged on the bottom surface of the main frame, and the grabbing mechanisms comprise a first commutator, a second commutator, A second reduction motor, a grabbing gripper, a first connecting shaft and a second connecting shaft, the first commutator is fixedly connected to the bottom surface of the main body frame, and the bottom surface of the main body frame is also fixedly connected with the second commutator on both sides of the first commutator, the second reduction motor is fixedly connected to the bottom surface of the main body frame, and the second reduction motor and the output end of the first commutator are fixedly connected through a coupling, the first connecting shaft is fixedly connected between the output ends of the first commutator and the second commutator through the couplings at both ends, and the second connecting shaft is fixedly connected between the output ends of the grabbing gripper and the second commutator through the couplings at both ends.

[0009] Preferably, the external gear slewing bearing is fixedly mounted on the bottom surface of the mounting support by fastening bolts.

[0010] Preferably, the first reduction motor is fixedly mounted on the top surface of the mounting support, and a driving gear is fixedly mounted on the output end of the first reduction motor, and the driving gear is meshed with the outer ring teeth of the external gear slewing bearing.

[0011] Preferably, a connection plate is fixedly mounted on the top surface of the main frame, and the connection plate is fixedly mounted on the bottom surface of the external gear slewing bearing.

[0012] Preferably, the first commutator is fixedly mounted on the bottom surface of the main frame, and a second reduction motor is fixedly mounted on the bottom surface of the main frame and behind the first commutator, and the output end of the second reduction motor is fixedly mounted together with the output end of the first commutator via a coupling.

[0013] Preferably, the second commutator is fixedly mounted on the bottom surface of the main frame and on the left and right sides of the first commutator respectively, and the first connecting shaft is fixedly mounted with the output ends on the opposite walls of the first and second commutators through couplings at the left and right ends.

[0014] Preferably, grabbing grippers are fixedly mounted on the bottom surface of the main frame and located in front and behind the second commutator, and the second connecting shaft is fixedly mounted with the output ends on the opposite walls of the second commutator and the grabbing gripper through couplings at the front and rear ends.

[0015] Preferably, a grabbing position sensor and a releasing position sensor are fixedly mounted on the inner side wall of the grabbing gripper and on the left and right sides of the output end respectively.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, the grabbing mechanism is set, after the lifting belt of the ton bag body is placed on the left-right symmetrical grabbing gripper, the second reduction motor drives the output end to drive the output end of the first commutator to rotate, the first commutator will drive the output end of the second commutator to rotate through the first connecting shaft, and the second commutator will drive the output end of the grabbing gripper to rotate through the second connecting shaft, so as to achieve the purpose of grabbing the ton bag body, and through the symmetrical grabbing mechanism, four standard ton bags can be grabbed and transported at one time, which not only improves the grabbing efficiency, but also greatly improves the transportation work efficiency, and has the characteristics of high reliability, large load and stable grabbing when grabbing the ton bag body;

[0018] In conjunction with the use of the rotating mechanism provided above, the driving output end of the first reduction motor is turned on to drive the active gear to rotate, so that the active gear drives the external gear slewing bearing to rotate under the meshing action, and the main frame is driven to rotate through the connecting plate connected to the external gear slewing bearing. The position of the ton bag body grasped by the grasping mechanism can be rotated and changed to meet the loading and unloading requirements of different transportation tools when transferring the ton bag body, so that the ton bag body can be loaded in the transportation tool more compactly and orderly, thereby not only improving space utilization and reducing transportation costs, but also improving the flexibility of use of the ton bag grabber. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a schematic diagram of the overall structure of the main frame of the present invention;

[0021] Figure 3 It is a schematic diagram of the structural disassembly of the rotating mechanism of the present invention;

[0022] Figure 4 It is a schematic diagram of the overall structure of the grabbing mechanism of the present invention;

[0023] Figure 5 It is a schematic diagram of the overall structure of the grabbing gripper of the present invention.

[0024] In the figure: 1. Main frame; 2. Ton bag body; 3. Rotating mechanism; 4. Grabbing mechanism; 5. Connecting plate; 6. Mounting support; 7. External gear slewing bearing; 8. Fastening bolts; 9. First reduction motor; 10. Driving gear; 11. First commutator; 12. Second commutator; 13. Second reduction motor; 14. Grabbing gripper; 15. First connecting shaft; 16. Second connecting shaft; 17. Coupling; 18. Grab in place sensor; 19. Release in place sensor. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] like Figure 1 - Figure 5 As shown, a material ton bag transfer grabbing device for a chemical plant includes a main frame 1 and a ton bag body 2. The top surface of the main frame 1 is provided with a rotating mechanism 3, and the rotating mechanism 3 includes a mounting support 6, an external gear slewing bearing 7, a first reduction motor 9 and a driving gear 10. The external gear slewing bearing 7 is fixedly connected to the bottom surface of the mounting support 6, and the first reduction motor 9 is fixedly connected to the top surface of the mounting support 6. The driving gear 10 is fixedly connected to the output end of the first reduction motor 9, and the driving gear 10 is meshed with the external gear slewing bearing 7. The bottom surface of the main frame 1 is also provided with a group of left-right symmetrical grabbing mechanisms 4, and the grabbing mechanism 4 includes a first commutator 11, a second commutator 12, a second reduction motor 1 3. Grab the gripper 14, the first connecting shaft 15 and the second connecting shaft 16, the first commutator 11 is fixedly connected to the bottom surface of the main frame 1, and the bottom surface of the main frame 1 is also fixedly connected with the second commutator 12 on both sides of the first commutator 11, the second reduction motor 13 is fixedly connected to the bottom surface of the main frame 1, and the second reduction motor 13 and the output end of the first commutator 11 are fixedly connected through a coupling 17, the first connecting shaft 15 is fixedly connected between the output ends of the first commutator 11 and the second commutator 12 through the couplings 17 at both ends, and the second connecting shaft 16 is fixedly connected between the output ends of the grabbing gripper 14 and the second commutator 12 through the couplings 17 at both ends.

[0027] like Figure 3 As shown, the external gear slewing bearing 7 is fixedly mounted on the bottom surface of the mounting support 6 by means of the fastening bolts 8. The external gear slewing bearing 7 is fixed to the bottom end of the mounting support 6 by means of the fastening bolts 8, so that the external gear slewing bearing 7 drives the main frame 1 to rotate during the rotation process to achieve the purpose of adjusting the position of the ton bag body 2, and the model of the external gear slewing bearing 7 is the square circle slewing bearing QWB280.16;

[0028] like Figure 3As shown, the first reduction motor 9 is fixedly mounted on the top surface of the mounting support 6, and a driving gear 10 is fixedly mounted on the output end of the first reduction motor 9, and the driving gear 10 is meshed with the outer ring teeth of the external gear slewing bearing 7. The output end of the first reduction motor 9 drives the driving gear 10 to rotate, so that the driving gear 10 drives the external gear slewing bearing 7 to realize the rotation operation under the action of meshing, wherein the model of the first reduction motor 9 is SF57DRN90S6, the motor speed is 13r / min, the torque is 340Nm, and the number of teeth of the driving gear 10 is 20;

[0029] like Figure 2 As shown, a connection plate 5 is fixedly installed on the top surface of the main frame 1, and the connection plate 5 is fixedly installed on the bottom surface of the external gear slewing bearing 7. After the main frame 1 is connected to the bottom surface of the external gear slewing bearing 7 through the connection plate 5, it will rotate synchronously under the rotation of the external gear slewing bearing 7 to adjust the position of the ton bag body 2 grabbed by the grabbing mechanism 4 on the bottom surface of the main frame 1. The main frame 1 is used as an integral force-bearing component of the gripper and is welded with Q355B material. The main frame profile is welded with 100×80mm rectangular tubes, and the connecting ribs are made of 10mm thick Q235B steel plates.

[0030] like Figure 4 As shown, the first commutator 11 is fixedly mounted on the bottom surface of the main frame 1, and a second reduction motor 13 is fixedly mounted on the bottom surface of the main frame 1 and located behind the first commutator 11. The output end of the second reduction motor 13 is fixedly mounted with the output end of the first commutator 11 through a coupling 17. The output end of the second reduction motor 13 drives the output end of the first commutator 11 to rotate under the connection of the coupling 17. The model of the second reduction motor 13 is a precision motor S250h01, the motor speed is 7r / min, and the rated torque is 200Nm.

[0031] like Figure 4 As shown, the second commutator 12 is fixedly installed on the bottom surface of the main frame 1 and the left and right sides of the first commutator 11, and the first connecting shaft 15 is fixedly installed with the output ends on the opposite walls of the first commutator 11 and the second commutator 12 through the couplings 17 at the left and right ends. Since the first connecting shaft 15 is connected between the first commutator 11 and the output ends of the second commutator 12 on its left and right sides through the couplings 17 at both ends, the output end of the first commutator 11 will drive the output end of the second commutator 12 to rotate through the first connecting shaft 15 during the rotation process;

[0032] like Figure 4As shown, the bottom surface of the main frame 1 is also fixedly installed with a grabbing gripper 14 at the front and rear of the second commutator 12, and the second connecting shaft 16 is fixedly installed with the output ends on the opposite walls of the second commutator 12 and the grabbing gripper 14 through the couplings 17 at the front and rear ends. Since the second connecting shaft 16 is connected between the second commutator 12 and the output ends of the grabbing gripper 14 at the front and rear thereof through the coupling 17, the output end of the second commutator 12 will drive the output end of the grabbing gripper 14 to rotate through the second connecting shaft 16 during the rotation process, and the grabbing of the ton bag body 2 is completed through the lifting belt on the ton bag body 2, wherein the material model of the grab hook of the grabbing gripper 14 is Q355B, and the overall rotation speed of the gripper is about 2.4r / min;

[0033] like Figure 5 As shown, a grasping position sensor 18 and a releasing position sensor 19 are fixedly installed on the inner wall of the grasping gripper 14 and on the left and right sides of the output end. The grasping position sensor 18 mainly determines whether the gripper hook is grasped in place, and the releasing position sensor 19 mainly determines whether the gripper hook is released.

[0034] It should be noted that the present invention is a material ton bag transfer grabbing device for chemical plants, and the specific use principles of the rotating mechanism 3 and the grabbing mechanism 4 are as follows:

[0035] During grabbing, the grabbing gripper 14 is lowered with the crane hook. When the grabbing gripper 14 is lowered to the specified position on the upper surface of the ton bag body 2, the crane hook stops descending, and the ton bag body 2 is manually lifted to the grabbing gripper 14 hook through the lifting rod. The second reduction motor 13 will be turned on and drive the output end to drive the output end of the first commutator 11 to rotate through the coupling 17. The first connecting shaft 15 is connected between the first commutator 11 and the output ends of the second commutator 12 on both sides thereof through the coupling 17, so the first commutator 11 will drive the second commutator 11 through the first connecting shaft 15. The output end of the second commutator 12 rotates, and the second connecting shaft 16 is connected between the second commutator 12 and the output end of the grabbing gripper 14 in front and behind it through the couplings 17 at both ends. Therefore, the second commutator 12 will drive the output end of the grabbing gripper 14 to rotate through the second connecting shaft 16, and the grab hook of the grabbing gripper 14 rotates from the loose state to the grasping state. The grasping sensor 18 senses a signal, and the second reduction motor 13 stops rotating. The grab hook of the grabbing gripper 14 grabs the ton bag body 2 in place for hoisting. At this time, the crane lifts and transports the ton bag;

[0036] During release, after the crane reaches the designated position, the grabbing gripper 14 and the ton bag body 2 descend with the crane. After the ton bag body 2 reaches the designated position, the crane stops descending. It can be manually determined whether the ton bag needs to be rotated. If it needs to be rotated, the first reduction motor 9 installed on the top surface of the mounting support 6 is turned on. The first reduction motor 9 will drive the output end to drive the driving gear 10 to rotate. The driving gear 10 drives the external gear slewing bearing 7 installed on the bottom surface of the mounting support 6 through the fastening bolts 8 under the action of meshing. The external gear slewing bearing 7 will drive the main frame 1 to rotate through the connecting plate 5 connected to the bottom surface until the ton bag body 2 grabbed by the grabbing mechanism 4 is rotated to a suitable position. After it is released in place, the second reduction motor 13 is turned on to reverse, so that the grab hook of the grabbing gripper 14 releases the lifting belt of the ton bag body 2. After the grab hook of the grabbing gripper 14 is released, the sensor sensing signal of the release position sensor 19 is released. At this time, the grab hook of the grabbing gripper 14 is in an open state and has been separated from the lifting belt of the ton bag body 2. The crane rises to complete the release action.

[0037] Therefore, the provided rotating mechanism 3 and grabbing mechanism 4 can greatly improve the transfer efficiency of the ton bag body 2 when the ton bag body of materials in the chemical plant is transferred.

[0038] The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and parts thereof may be replaced by equivalents, or some technical features thereof may be replaced by equivalents without departing from the scope of the present invention. All that is within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A material ton bag transfer grabbing device for a chemical plant, comprising a main frame (1) and a ton bag body (2), characterized in that: The top surface of the main frame (1) is provided with a rotating mechanism (3), and the rotating mechanism (3) includes a mounting support (6), an external gear slewing bearing (7), a first reduction motor (9) and a driving gear (10), the external gear slewing bearing (7) is fixedly connected to the bottom surface of the mounting support (6), and the first reduction motor (9) is fixedly connected to the top surface of the mounting support (6), the driving gear (10) is fixedly connected to the output end of the first reduction motor (9), and the driving gear (10) is meshed with the external gear slewing bearing (7), and the bottom surface of the main frame (1) is also provided with a group of bilaterally symmetrical grasping mechanisms (4), and the grasping mechanisms (4) include a first commutator (11), a second commutator (12), a second reduction motor (13), a grasping gripper (14), a first connecting shaft (15) and a second connecting shaft (16), the first commutator (11) is fixedly connected to the bottom surface of the main frame (1), and the bottom surface of the main frame (1) is also fixedly connected with a second commutator (12) on both sides of the first commutator (11), the second reduction motor (13) is fixedly connected to the bottom surface of the main frame (1), and the second reduction motor (13) and the output end of the first commutator (11) are fixedly connected through a coupling (17), the first connecting shaft (15) is fixedly connected between the output ends of the first commutator (11) and the second commutator (12) through the couplings (17) at both ends, and the second connecting shaft (16) is fixedly connected between the grabbing gripper (14) and the output end of the second commutator (12) through the couplings (17) at both ends.

2. The material bulk bag transfer grabbing device for chemical plants according to claim 1 is characterized by: The external gear slewing bearing (7) is fixedly mounted on the bottom surface of the mounting support (6) by means of fastening bolts (8).

3. The material bulk bag transfer grabbing device for chemical plants according to claim 2 is characterized by: The first reduction motor (9) is fixedly mounted on the top surface of the mounting support (6), and a driving gear (10) is fixedly mounted on the output end of the first reduction motor (9), and the driving gear (10) is meshed with the outer ring teeth of the external gear slewing bearing (7).

4. The material bulk bag transfer grabbing device for chemical plants according to claim 3 is characterized by: A connecting plate (5) is fixedly mounted on the top surface of the main frame (1), and the connecting plate (5) is fixedly mounted on the bottom surface of the external gear slewing bearing (7).

5. The material bulk bag transfer grabbing device for chemical plants according to claim 4 is characterized in that: The first commutator (11) is fixedly mounted on the bottom surface of the main frame (1), and a second reduction motor (13) is fixedly mounted on the bottom surface of the main frame (1) and located behind the first commutator (11), and the output end of the second reduction motor (13) and the output end of the first commutator (11) are fixedly mounted together via a coupling (17).

6. The material bulk bag transfer grabbing device for chemical plants according to claim 5 is characterized by: The second commutator (12) is fixedly mounted on the bottom surface of the main frame (1) and on the left and right sides of the first commutator (11), and the first connecting shaft (15) is fixedly mounted together with the output ends on the opposite walls of the first commutator (11) and the second commutator (12) through couplings (17) at the left and right ends.

7. The material bulk bag transfer grabbing device for chemical plants according to claim 6 is characterized by: The bottom surface of the main frame (1) is also fixedly mounted with grabbing grippers (14) at the front and rear of the second commutator (12), and the second connecting shaft (16) is fixedly mounted together with the output ends on the opposite walls of the second commutator (12) and the grabbing grippers (14) through couplings (17) at the front and rear ends.

8. The material bulk bag transfer grabbing device for chemical plants according to claim 7 is characterized by: A grasping position sensor (18) and a releasing position sensor (19) are respectively fixedly mounted on the inner side wall of the grasping gripper (14) and located on the left and right sides of the output end.

Images