Material ton bag transferring and grabbing device for chemical plant

Abstract

The utility model discloses a material ton bag transfer gripping device for a chemical plant, which belongs to the field of gripping devices, and comprises a main body frame and a ton bag body, a group of gripping mechanisms in bilateral symmetry are further arranged on the bottom surface of the main body frame, and after a lifting belt of the ton bag body is placed on gripping tools in bilateral symmetry, the gripping tools are used for gripping 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 utility model relates to the field of grabbing devices, in particular to a material ton bag transfer grabbing device used in a chemical plant. 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 utility model proposes a material ton bag transfer grabbing device for a chemical plant. Utility Model Content

[0006] The main purpose of the utility model is to provide a material ton bag transfer grabbing device for chemical plants, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A material ton bag transfer and grasping device for a chemical plant, comprising a main body frame and a ton bag body. A rotating mechanism is provided on the top surface of the main body frame, and the rotating mechanism includes 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 meshes with the external gear slewing bearing. A set of symmetrically arranged grasping mechanisms are further provided on the bottom surface of the main body frame, and the grasping mechanism includes a first commutator, a second commutator, a second reduction motor, a grasping 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 second commutators are respectively and fixedly connected to both sides of the bottom surface of the main body frame and located 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 by a coupling. The first connecting shaft is fixedly connected between the output ends of the first commutator and the second commutator through couplings at both ends, and the second connecting shaft is fixedly connected between the grasping gripper and the output end of the second commutator through couplings at both ends.

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

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

[0011] Preferably, a connecting disk is fixedly installed on the top surface of the main body frame, and the connecting disk is fixedly installed on the bottom surface of the external gear slewing bearing.

[0012] Preferably, the first commutator is fixedly installed on the bottom surface of the main body frame, and a second reduction motor is fixedly installed behind the first commutator on the bottom surface of the main body frame. The output end of the second reduction motor and the output end of the first commutator are fixedly installed together through a coupling.

[0013] Preferably, second commutators are respectively and fixedly installed on the left and right sides of the bottom surface of the main body frame and located on both sides of the first commutator, and the first connecting shaft is fixedly installed between the output ends on the opposite side walls of the first commutator and the second commutator through couplings at the left and right ends.

[0014] Preferably, grasping grippers are respectively and fixedly installed in front of and behind the second commutator on the bottom surface of the main body frame, and the second connecting shaft is fixedly installed between the output ends on the opposite side walls of the second commutator and the grasping gripper through couplings at the front and rear ends.

[0015] Preferably, a grasping-in-place sensor and a releasing-in-place sensor are respectively and fixedly installed on the inner side walls of the grasping gripper and on the left and right sides of the output end.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the utility model, a grasping mechanism is provided. After the lifting belts of the ton bag body are placed on the left and right symmetric grasping grippers, 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 grasping gripper to rotate through the second connecting shaft, so as to achieve the purpose of grasping the ton bag body. And four standard ton bags can be grasped and transported at one time through the provided symmetric grasping mechanism, which not only improves the relatively low grasping efficiency, but also greatly improves the transportation work efficiency, and has the characteristics of high reliability, large load capacity and stable grasping when grasping the ton bag body;

[0018] And in cooperation with the use of the provided rotating mechanism, by starting the first reduction motor to drive the output end to drive the driving gear to rotate, the driving gear drives the external gear slewing bearing to rotate under the meshing action, and drives the main body frame to rotate through the connecting plate connected to the external gear slewing bearing, so as to change the position of the ton bag body grasped by the grasping mechanism, so as to meet the loading and unloading requirements of different transportation tools when transporting the ton bag body, make the ton bag body more compact and orderly when loaded in the transportation tool, thus not only improving the space utilization rate, reducing the transportation cost, but also improving the use flexibility of the ton bag gripper. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the utility model;

[0020] Figure 2 is the overall structural schematic diagram of the main body frame of the utility model;

[0021] Figure 3 is the structural split schematic diagram of the rotating mechanism of the utility model;

[0022] Figure 4 is the overall structural schematic diagram of the grasping mechanism of the utility model;

[0023] Figure 5 is the overall structural schematic diagram of the grasping gripper of the utility model.

[0024] In the figure: 1, main body frame; 2, bulk bag body; 3, rotating mechanism; 4, grasping mechanism; 5, connecting plate; 6, mounting support; 7, external gear slewing bearing; 8, fastening bolt; 9, first reduction motor; 10, driving gear; 11, first commutator; 12, second commutator; 13, second reduction motor; 14, grasping gripper; 15, first connecting shaft; 16, second connecting shaft; 17, coupling; 18, grasping in-place sensor; 19, releasing in-place sensor. Specific embodiments

[0025] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] As Figure 1 - Figure 5 shown, a material bulk bag transfer and grasping device for a chemical plant includes a main body frame 1 and a bulk bag body 2. A rotating mechanism 3 is provided on the top surface of the main body frame 1, 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 meshes with the external gear slewing bearing 7. A group of symmetrically arranged grasping mechanisms 4 are further provided on the bottom surface of the main body frame 1, and the grasping mechanism 4 includes 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 body frame 1, and second commutators 12 are respectively fixedly connected to both sides of the bottom surface of the main body frame 1 and located on both sides of the first commutator 11. The second reduction motor 13 is fixedly connected to the bottom surface of the main body frame 1, and the second reduction motor 13 is fixedly connected to the output end of the first commutator 11 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 couplings 17 at both ends, and the second connecting shaft 16 is fixedly connected between the grasping gripper 14 and the output end of the second commutator 12 through couplings 17 at both ends.

[0027] As Figure 3 shown, the external gear slewing bearing 7 is fixedly installed on the bottom surface of the mounting support 6 through a fastening bolt 8. The external gear slewing bearing 7 is fixed to the bottom end of the mounting support 6 through the fastening bolt 8, so that the external gear slewing bearing 7 drives the main body frame 1 to rotate during rotation to achieve the purpose of adjusting the position of the bulk bag body 2. The model of the external gear slewing bearing 7 is selected as Fangyuan slewing bearing QWB280.16;

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

[0029] As Figure 2 As shown in the figure, a connecting plate 5 is fixedly installed on the top surface of the main body frame 1, and the connecting plate 5 is fixedly installed on the bottom surface of the external gear slewing bearing 7. After the main body frame 1 is connected to the bottom surface of the external gear slewing bearing 7 through the connecting plate 5, the main body frame 1 will rotate synchronously under the drive 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 body frame 1. The main body frame 1 is used as the overall force-bearing component of the gripper, which is welded with Q355B material. The main body frame profile is selected as a 100×80 mm rectangular pipe for welding, and the connecting rib is made of a 10 mm thick Q235B steel plate;

[0030] As Figure 4 As shown in the figure, the first commutator 11 is fixedly installed on the bottom surface of the main body frame 1, and a second reduction motor 13 is fixedly installed on the bottom surface of the main body frame 1 and behind the first commutator 11. The output end of the second reduction motor 13 and the output end of the first commutator 11 are fixedly installed together through a coupling 17. The second reduction motor 13 drives the output end to drive the output end on the first commutator 11 to rotate under the connection action of the coupling 17. The model of the second reduction motor 13 is the precision research motor S250h01, the motor speed is 7 r / min, and the rated torque is 200 Nm;

[0031] As Figure 4 As shown in the figure, second commutators 12 are fixedly installed on the left and right sides of the bottom surface of the main body frame 1 and on both sides of the first commutator 11. The first connecting shaft 15 is fixedly installed with the output ends on the opposite side walls of the first commutator 11 and the second commutators 12 through couplings 17 at both ends. Since the first connecting shaft 15 is connected between the output ends of the first commutator 11 and the second commutators 12 on its left and right sides through 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] As Figure 4As shown in the figure, grasping grippers 14 are respectively and fixedly installed on the bottom surface of the main frame 1 and in front of and behind the second commutator 12. The second connecting shaft 16 is fixedly installed together with the output ends on the opposite side walls of the second commutator 12 and the grasping grippers 14 through couplings 17 at the front and rear ends. Since the second connecting shaft 16 is connected between the output end of the second commutator 12 and the output ends of the grasping grippers 14 in front of and behind it through the couplings 17, during the rotation of the output end of the second commutator 12, it will drive the output end of the grasping gripper 14 to rotate through the second connecting shaft 16, and grasp the bulk bag body 2 through the lifting belt on the bulk bag body 2. The material model of the hook of the grasping gripper 14 is Q355B, and the overall rotation speed of the gripper is about 2.4 r / min;

[0033] As Figure 5 shown in the figure, a grasping-in-place sensor 18 and a releasing-in-place sensor 19 are respectively and fixedly installed on the inner side walls of the grasping gripper 14 and on the left and right sides of the output end. The grasping-in-place sensor 18 mainly judges whether the hook of the gripper grasps in place, and the releasing-in-place sensor 19 mainly judges whether the hook of the gripper releases.

[0034] It should be noted that the present utility model is a material bulk bag transfer and grasping device for a chemical plant. The specific working principles of the rotating mechanism 3 and the grasping mechanism 4 are as follows:

[0035] During grasping, the grasping gripper 14 descends with the crane hook. When the grasping gripper 14 descends to a specified position on the upper surface of the bulk bag body 2, the crane hook stops descending. An operator lifts the lifting belt of the bulk bag body 2 to the hook of the grasping gripper 14 through a lifting rod. The second reduction motor 13 will start and drive the output end to drive the output end of the first commutator 11 to rotate through the coupling 17. Since the first connecting shaft 15 is connected between the output end of the first commutator 11 and the output ends of the second commutators 12 on both sides through the coupling 17, the first commutator 11 will drive the output end of the second commutator 12 to rotate through the first connecting shaft 15. And since the second connecting shaft 16 is connected between the output end of the second commutator 12 and the output ends of the grasping grippers 14 in front of and behind it through the couplings 17 at both ends, the second commutator 12 will drive the output end of the grasping gripper 14 to rotate through the second connecting shaft 16. The hook of the grasping gripper 14 rotates from the released state to the grasping-in-place state. The grasping-in-place sensor 18 senses the signal, and the second reduction motor 13 stops rotating. The hook of the grasping gripper 14 grasps the bulk bag body 2 in place for hoisting. At this time, the crane lifts and transfers the bulk bag;

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

[0037] Therefore, when transporting the bulk bag body of the chemical plant materials through the set rotation mechanism 3 and grabbing mechanism 4, the transportation efficiency of the bulk bag body 2 can be greatly improved.

[0038] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, various improvements can be made to it without departing from the scope of the present invention, and components therein can be replaced with equivalents, or some of the technical features can be equivalently replaced. All should be included within the protection scope of the present invention within the spirit and principle 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.

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