Double-track bulk cargo intelligent transfer device for ocean port

Abstract

The invention discloses a double-track bulk cargo intelligent transshipment device for a marine port, and relates to the technical field of bulk cargo intelligent transshipment, the double-track bulk cargo intelligent transshipment device comprises transshipment equipment and two grab buckets, the transshipment equipment is provided with driving equipment, the lower end of the driving equipment is fixedly provided with two shaft rods, and the two shaft rods are both rotatably connected with the corresponding grab buckets; a speed adjusting assembly is arranged between the grab bucket on the left side and the corresponding shaft rod and used for adaptively adjusting the bulk material conveying speed of the transfer equipment. The grab bucket has the beneficial effects that the closing and opening speed of the grab bucket can be adjusted adaptively and accurately according to the density of bulk materials, the bulk material conveying efficiency and stability of transfer equipment can be improved, meanwhile, the effect of automatically cleaning the inner wall and the outer wall of the grab bucket can be achieved through the cleaning assembly, and the practicability is high. The stability and efficiency of continuous conveying of the bulk materials by the transfer equipment can be further improved, and meanwhile the safety of the transfer equipment in the bulk material conveying process can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent bulk material transfer, and in particular to a double-track intelligent bulk material transfer device for ocean ports. Background Art

[0002] With the development of trade, the volume of bulk cargo transported at ports has increased dramatically. Traditional transfer methods, due to their low efficiency and poor precision, can no longer meet the efficient, precise, and intelligent operation requirements of modern ports. Therefore, dual-track intelligent bulk material transfer devices have emerged. To further improve the transfer effect and efficiency of bulk materials, intelligent suspension conveying systems are usually added to the transfer devices to optimize the connection smoothness and conveying efficiency during the bulk material transfer process, thereby improving the space utilization and flexibility of the equipment during use.

[0003] To improve the stability and efficiency of bulk material transfer equipment, the closing and opening speeds of the grab bucket on the transfer equipment are usually adjusted according to the density of the bulk material. However, due to the wide variety of bulk materials that need to be transferred in ports, and the small density differences between some bulk materials, it is difficult to accurately adjust the closing and opening speeds of the grab bucket based on the type of bulk material using human labor alone. Although some grab buckets use sensors and other inspection equipment to automatically identify the bulk material type and automatically control the closing and opening speeds of the grab bucket based on the bulk material type, the same type of bulk material inside port cargo ships is easily affected by bulk material particle characteristics, humidity, segregation during loading, and cargo hold structure. This can lead to different densities in the upper and lower layers or at different locations of the same type of bulk material. Therefore, it is easy to fail to accurately adjust the closing and opening speeds of the grab bucket based on the bulk material density. If the closing and opening speeds of the grab bucket do not match the bulk material density, it will not only reduce the bulk material transfer efficiency of the transfer equipment, but also reduce its stability. To this end, we propose a dual-track intelligent bulk material transfer equipment for ocean ports to address the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems raised in the background technology and to propose a double-track bulk material intelligent transfer device for ocean ports.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A dual-track intelligent bulk material transfer device for ocean ports includes a transfer device and two grab buckets. The transfer device is equipped with a drive device. Two shafts are fixedly mounted on the lower end of the drive device, and both shafts are rotatably connected to the corresponding grab buckets. A speed regulating assembly is provided between the grab bucket on the left and the corresponding shaft rod for adaptively adjusting the conveying speed of the bulk material by the transfer device.

[0007] The speed regulating assembly includes a hydraulic press fixedly mounted on a driving device, two hydraulic rods fixedly mounted on the driving device, two fluid infusion tubes fixedly connected between the two hydraulic rods and the hydraulic press, and speed regulating valves mounted on the fluid infusion tubes, a telescopic rod fixedly mounted on the lower end of the driving device, and a second rack fixedly mounted on the lower end of the telescopic rod;

[0008] An adjusting component is installed between the second rack and the speed regulating valve, and an induction mechanism is installed between the grab bucket on the left and the second rack.

[0009] Compared with the existing technology, the advantages of the present invention are:

[0010] 1: When the equipment of the present invention transfers low-density bulk materials, the two hydraulic rods and multiple speed regulating valves can be used to cooperate with each other so that the two grab buckets adopt a high-speed closing and low-speed opening mode, thereby increasing the single-time bulk material conveying capacity of the transfer equipment. At the same time, it can also effectively avoid the loss of low-density bulk materials in the process of transferring bulk materials by the transfer equipment. Moreover, through the cooperation of the speed regulating component and the multiple speed regulating valves, the closing and opening speeds of the grab buckets can be adaptively adjusted according to the density of the bulk materials to be transferred, thereby effectively improving the stability and efficiency of the transfer equipment in conveying bulk materials through the grab buckets, and at the same time, it can also protect the transfer equipment to a certain extent.

[0011] 2: In the process of the grab bucket transferring bulk materials, the present invention can drive two scrapers one and two scrapers two through the cooperation of the rotating rod and the cleaning component to respectively remove impurities and bulk materials adhered to the inner and outer walls of the corresponding grab bucket, which can not only further improve the stability and efficiency of the transfer equipment in continuously conveying bulk materials, but also effectively improve the safety of the transfer equipment in the process of conveying bulk materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of a dual-track intelligent bulk material transfer device for ocean ports proposed by the present invention;

[0013] Figure 2 for Figure 1 Schematic diagram of the structure of the middle drive device and two grab buckets;

[0014] Figure 3 for Figure 2 Schematic diagram of the front view of the two grab buckets;

[0015] Figure 4 for Figure 3 Schematic cross-sectional view of the two grab buckets;

[0016] Figure 5 for Figure 4 Schematic diagram of the local structure of the induction mechanism;

[0017] Figure 6for Figure 3 Schematic diagram of the structure of the connection between the grab bucket and the drive equipment on the left side of the middle;

[0018] Figure 7 for Figure 6 Schematic diagram of the structure of the transmission components;

[0019] Figure 8 for Figure 7 A schematic diagram of the structure of the assembly formed by the local connection between the central axis rod and the rotating shaft;

[0020] Figure 9 for Figure 7 A schematic front view of the assembly consisting of a partial connection between the central axis rod and the rotating shaft;

[0021] Figure 10 for Figure 7 A schematic cross-sectional view of the middle disc after it is rotated by a certain angle;

[0022] Figure 11 for Figure 10 A schematic cross-sectional view of the middle arc box;

[0023] Figure 12 for Figure 7 Schematic diagram of the structure of the driving components;

[0024] Figure 13 for Figure 12 a schematic cross-sectional view of the middle cylinder;

[0025] Figure 14 for Figure 13 Schematic diagram of the structure of part A;

[0026] Figure 15 for Figure 2 A partial cross-sectional schematic diagram of the middle drive device;

[0027] Figure 16 for Figure 15 A schematic diagram of the structure of the assembly formed by connecting the second rack and multiple infusion tubes;

[0028] Figure 17 It is a structural diagram of 8 limit components;

[0029] Figure 18 for Figure 17 Schematic diagram of the structure of the components on the middle threaded rod;

[0030] Figure 19 for Figure 2 Schematic diagram of the structure of the middle grab bucket;

[0031] Figure 20 for Figure 19 Schematic diagram of the structure of the cleaning component;

[0032] Figure 21 for Figure 20 Schematic diagram of the structure of the components on the transfer rod.

[0033] In the figure: 1. Transfer equipment; 2. Drive equipment; 3. Grab bucket; 4. Shaft;

[0034] 5. Speed ​​regulating assembly; 51. Placement slot; 52. Spring telescopic rod; 53. Pushing member; 54. Rotating shaft; 55. Rack rack; 56. Protective cover; 57. Connecting member; 58. Disc; 59. Arc box; 510. Rotating gear 1; 511. Rotating gear 2; 512. First rack; 513. Driving gear disc; 514. Push rod; 515. Elastic driving member; 516. Cylinder; 517. Torsion spring 1; 518. Telescopic rod; 519. Second rack; 520. Support frame; 521. Spur gear 1; 522. Third rack;

[0035] 6. Limiting assembly; 61. Arc rack; 62. Threaded rod; 63. Elastic engaging member; 64. Spur gear 2;

[0036] 7. Hydraulic rod; 8. Infusion tube; 9. Speed ​​regulating valve; 10. Flow limiting plate; 11. Rotating rod;

[0037] 12. Cleaning assembly; 121. Scraper 1; 122. Parallel shaft gear; 123. Incomplete gear; 124. Scraper 2. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Reference Figures 1-21 A dual-track bulk material intelligent transfer device for ocean ports includes a transfer device 1 and two grab buckets 3. The transfer device 1 is equipped with a driving device 2. Two shafts 4 are fixedly installed at the lower end of the driving device 2, and the two shafts 4 are rotatably connected to the corresponding grab buckets 3. A speed regulating component 5 (such as Figure 4 direction shown), used to adaptively adjust the conveying speed of the transfer equipment for bulk materials.

[0040] Bulk materials that need to be transshipped at ocean ports include mineral resources (such as coal, ore, etc.), agricultural products (such as grains, oil crops, etc.), building materials (such as sand and gravel aggregates, etc.), chemical raw materials (such as fertilizers, chemical minerals, etc.), etc.

[0041] The grab 3 is the terminal device of the intelligent bulk material transfer device. In order to improve the effect and efficiency of its force grabbing, transferring and unloading of different bulk materials, the speed of the grab 3 closing to grab bulk materials and opening to unload bulk materials is usually adjusted according to the density of the bulk materials to be grabbed before the grab 3 grabs the bulk materials. For example, the grab 3 transfers low-density bulk materials (such as grains, fertilizers, wood chips, etc., whose bulk density is usually low and is usually less than 1.2t / m 3 ), the "high closing, low opening" method is usually adopted. Since the gaps between the particles of low-density bulk materials are large and their own weight is light, if the closing speed of the grab bucket 3 is too slow, the material is likely to leak out from the gaps between the bucket petals during the closing process of the grab bucket 3, or the impact force of the grab bucket 3 on the material when closing is insufficient, resulting in insufficient grabbing capacity, reducing the conveying speed of the transfer equipment 1 for bulk materials. Moreover, since low-density materials are light in weight and have strong fluidity, if the subsequent opening speed of the grab bucket 3 is too fast, the material will be instantly dumped due to gravity and the impact force of the bucket petals opening, resulting in uneven accumulation of materials at the unloading point, causing damage to existing transmission equipment (such as conveyor belts), and easily generating a large amount of dust, polluting the working environment, increasing the subsequent cleaning work of the staff, and reducing the conveying effect of the transfer equipment 1 for bulk materials;

[0042] At the same time, if the grab bucket 3 is used to transfer high-density bulk materials (such as iron ore, quartz sand, coal, etc., the bulk density is usually greater than 1.5t / m 3 ), because the high-density bulk material has a very large dead weight, if the grab 3 is still closed at high speed, a violent impact will be generated when the bucket lobes collide with the material, which is likely to cause vibration damage to the transfer equipment 1 through the two grabs 3 and the driving device 2, reducing the stability and continuity of the subsequent bulk material transportation of the transfer equipment 1. Therefore, when the grab 3 transfers high-density bulk materials, the "low opening, high closing" method is usually adopted.

[0043] Reference Figures 1-16 The speed regulating assembly 5 includes a hydraulic press fixedly mounted on the driving device 2 (not shown in the figure but not marked). Figure 16 ), two hydraulic rods 7 are fixedly installed on the driving device 2, and two infusion pipes 8 are fixedly connected between the two hydraulic rods 7 and the hydraulic press. A speed regulating valve 9 is installed on the infusion pipe 8. A telescopic rod 518 is fixedly installed at the lower end of the driving device 2, and a second rack 519 is fixedly installed at the lower end of the telescopic rod 518.

[0044] An adjusting component is installed between the second rack 519 and the speed regulating valve 9, and an induction mechanism is installed between the left grab bucket 3 and the second rack 519.

[0045] The sensing mechanism includes two placement slots 51 respectively provided on the two grab buckets 3. The two placement slots 51 on the left are fixedly mounted with spring telescopic rods 52 evenly distributed in a linear shape. A push piece 53 is fixedly mounted between the corresponding spring telescopic rods 52. The two push pieces 53 are sealed and slidably mounted on the corresponding placement slots 51.

[0046] A protective cover 56 is fixedly installed on the upper end of the left grab bucket 3, and a rack rack 55 is fixedly installed between the two pushing members 53 (the lower end of the protective cover 56 is connected to the corresponding two placement grooves 51, and the rack rack 55 is slidably installed in the protective cover 56). A rotating shaft 54 ​​is rotatably installed on the inner wall of the protective cover 56, and a rotating gear 510 engaged with the rack rack 55 is fixedly installed on the rotating shaft 54. A transmission component is installed between the rotating shaft 54 ​​and the left shaft rod 4, and a driving component is installed between the left shaft rod 4 and the second rack 519.

[0047] The transmission component includes a connecting member 57 fixedly mounted on the rotating shaft 54, a disc 58 fixedly mounted on the connecting member 57, and the disc 58 is rotatably connected to the shaft 4, and two arc-shaped openings are provided on the disc 58, and an arc box 59 is fixedly mounted on each of the two arc-shaped openings, and a push rod 514 is slidably mounted on each of the two arc boxes 59, and an elastic driving member 515 is installed on each of the two push rods 514 (the two elastic driving members 515 are composed of a rod body, a ratchet 1, and a compression spring 1, and the two rod bodies are rotatably mounted on the corresponding push rod 514, The two pawls 1 are fixedly mounted on the corresponding rod bodies, and a compression spring 1 is fixedly mounted between the two pawls 1 and the corresponding push rod 514; a rotating gear 2 511 is fixedly mounted on the rotating shaft 54; two positioning rods are fixedly mounted on the inner wall of the protective cover 56; a first rack 512 meshing with the rotating gear 2 511 is passed through and slidably mounted between the two positioning rods; a driving gear disc 513 meshing with the first rack 512 is rotatably mounted on the shaft 4, and the driving gear disc 513 is fixedly connected to one end of the two push rods 514.

[0048] The driving component includes a cylinder 516 rotatably mounted on the shaft 4, a fixing plate fixedly mounted on the shaft 4, a torsion spring 517 fixedly mounted between the fixing plate and the cylinder 516, and a ring-shaped slot evenly distributed (drawn but not marked in the figure, from Figure 14 As can be seen in the figure, a driving gear meshing with the second rack 519 is fixedly mounted on the cylinder 516.

[0049] The regulating components include spur gears 521 fixedly mounted on the speed regulating valve 9 respectively, two support frames 520 fixedly mounted on the second rack 519, and both support frames 520 are penetrated and slidably mounted on the driving device 2, and two third racks 522 are fixedly mounted on the two support frames 520, and both third racks 522 are engaged with the corresponding spur gears 521.

[0050] Combine Figure 15 and Figure 16 As shown, the lower ends of the two hydraulic rods 7 are connected to the hydraulic press with a fluid delivery pipe 8 as an oil inlet pipe, and the upper ends of the fluid delivery pipe 8 connected to the hydraulic press are connected to the oil return pipe. By operating a plurality of fluid delivery pipes 8 through the hydraulic press (existing equipment), the closing and opening speeds of the two grab buckets 3 driven by the two hydraulic rods 7 can be controlled, and the rotation of the plurality of speed regulating valves 9 by the speed regulating component 5 can realize precise control of the flow of hydraulic oil entering and flowing out of the hydraulic rods 7, that is, the closing and opening speeds of the grab bucket 3 can be precisely controlled as required.

[0051] When the bulk material of the port needs to be transferred and transported, the two grab buckets 3 must be driven to the top of the bulk material to be transferred by the cooperation of the transfer device 1 and the drive device 2, and then the two hydraulic rods 7 are driven by the hydraulic press to extend, so that the two grab buckets 3 can be driven to rotate outward relative to each other (such as Figure 2 The two grab buckets 3 are rotated inward relative to each other to close and grab the bulk material.

[0052] During this process, if the density of the bulk material to be transferred is small, the resistance it generates to the two push members 53 on the left grab 3 is small, and it will be difficult to drive the two push members 53 to move, that is, at this time the left grab 3 drives the rotating shaft 54 ​​to rotate counterclockwise to grab the bulk material (such as Figure 3 As shown in the direction), and through the connecting member 57, the disc 58 and the two arc boxes 59 thereon are driven to rotate counterclockwise around the corresponding shaft 4 (as shown in the direction). Figure 8 As shown in the direction, since the two pushing members 53 are not displaced, the angles of the multiple speed regulating valves 9 cannot be adjusted by the cooperation between the pushing members 53 and the transmission components, the driving components and the adjusting components.

[0053] The two hydraulic rods 7 are initially set in a high-speed extension and low-speed retraction state, in order to ensure that, when the bulk material to be transferred has a low density and the valve sizes of the multiple speed regulating valves 9 cannot be adjusted by the speed regulating component 5, the two hydraulic rods 7 can drive the grab bucket 3 to remain in a high-speed closing and low-speed opening state. Since the low-density bulk material has strong fluidity (such as rapeseed, soybean, etc.), at this time, the two grab buckets 3 are closed at high speed to grab the low-density bulk material, and the bulk material can be grabbed before it falls from the inside of the grab bucket 3, thereby reducing the scattering of the bulk material. At the same time, it can also effectively shorten the grabbing time of the grab bucket 3 and improve the filling rate of the grab bucket 3, which is both convenient and practical. It effectively increases the amount of bulk material that the grab bucket 3 can grab at a single time, improves the bulk material conveying efficiency of the transfer equipment 1, and can also reduce the energy consumption of the transfer equipment 1 for bulk material conveying (i.e., reduces the number of conveying times). The subsequent low-speed opening of the grab bucket 3 can help prevent the bulk material from being affected by inertia and spilling from a high place to the surroundings (i.e., it cannot be accurately put into the material receiving equipment). Moreover, since low-density bulk material is light in weight, opening the grab bucket 3 at a low speed can also help to cause the bulk material to fall into the material receiving equipment in a concentrated manner, which can reduce the airflow blowing away the bulk material (such as fertilizer, etc.) to a certain extent, and help reduce the loss of the equipment during the process of conveying the bulk material.

[0054] If the density of the bulk material to be transferred is relatively high, when the two grab buckets 3 are closed to grab the bulk material, the resistance generated by the bulk material on the two pushing members 53 will drive the two pushing members 53 to compress the corresponding multiple spring telescopic rods 52 and move into the corresponding placement groove 51. During the displacement of the two pushing members 53, the rack frame 55 and the rotating gear 1 510 can cooperate to drive the rotating shaft 54 ​​to rotate clockwise during the counterclockwise rotation (such as Figure 9 As shown in the direction, at this time, the cooperation between the rotating shaft 54 ​​and the rotating gear 2 511 generates a downward driving force on the first rack 512, which can make the first rack 512 move down and drive the driving gear plate 513 to rotate clockwise. At this time, since the left grab 3 rotates counterclockwise to close, the rotating shaft 54, the connecting member 57, the disc 58 and the two arc boxes 59 all rotate counterclockwise with the grab 3. Therefore, at this time, the driving gear plate 513 will drive the two push rods 514 to gradually move out from the corresponding arc boxes 59 (in the initial state, the two elastic driving members 515 are both located inside the corresponding arc boxes 59, as shown in the direction shown in the direction). Figure 11 The state shown in FIG. 2 is shown, and both elastic driving members 515 are in a compressed state).

[0055] When the two push rods 514 drive the corresponding elastic driving members 515 to move out of the corresponding arc box 59, the two elastic driving members 515 will, under the action of their own elastic force, quickly rotate the upper pawls thereof to engage in the slots on the corresponding cylinders 516. At this time, when the driving toothed disc 513 is forced to drive the corresponding push rods 514 and the elastic driving members 515 to rotate continuously clockwise, the two elastic driving members 515 will cooperate with the corresponding slots to drive the driving cylinder 516 to rotate clockwise together. When the cylinder 516 is forced to drive the driving gear to rotate clockwise together (such as Figure 12 The downward driving force applied to the second rack 519 can drive the second rack 519 to move the two support frames 520 downward together.

[0056] In the process of the two support frames 520 being driven by the force to move the two third racks 522 thereon downward together (such as Figure 16 The two third racks 522 located below cooperate with the corresponding spur gears 521 to drive the two spur gears 521 to rotate clockwise together, gradually closing the valves of the corresponding speed regulating valves 9. This can increase the flow resistance of the oil into the two hydraulic rods 7 and reduce the flow rate, thereby reducing the closing speed of the two grab buckets 3 driven by the two hydraulic rods 7. When the two grab buckets 3 cooperate to grab higher-density bulk materials (such as iron ore, etc.), the closing resistance of the grab buckets 3 is 3-5 times that of low-density materials. If closed at high speed, the instantaneous pressure of the hydraulic system can reach 25-30MPa (conventionally 16MPa). , which can easily lead to deformation of the hydraulic rod 7 or bursting of the infusion tube 8. Therefore, at this stage, the two grab buckets 3 are closed at a low speed, which can help avoid overload of the hydraulic system and vibration damage to the transfer equipment 1, that is, it helps to improve the stability of the transfer equipment 1 in continuously conveying bulk materials and improve its conveying effect on bulk materials. At the same time, when the grab bucket 3 is closed at a low speed, the cutting edge of the grab bucket 3 can evenly cut into the material pile, and the closing gap is ≤20mm (the gap can reach 50mm when closed at a high speed), which can help prevent large pieces of material from getting stuck or leaking, and increase the transfer equipment 1's grabbing capacity of high-density bulk materials through the grab bucket 3 in a single time, that is, it helps to improve the transfer equipment 1's conveying efficiency of bulk materials.

[0057] At the same time, when the two support frames 520 are forced to drive the two third racks 522 above to move downward, the cooperation of the two third racks 522 and the corresponding spur gear 1 521 can gradually open the valve on the corresponding speed regulating valve 9, reduce the resistance to oil reflux, and increase the flow rate, thereby achieving the effect of increasing the two hydraulic rods 7 to cooperate with each other to drive the two grab buckets 3 to open the unloading speed. Since high-density bulk materials have a high dead weight, the method of quickly opening the grab bucket 3 is adopted, which can be beneficial to utilizing the dead weight of the bulk materials and quickly unloading (such as shortening the single unloading time from 8 seconds to 5 seconds), which can help to increase the single unloading speed of the grab bucket 3 and improve the efficiency of the grab bucket 3 in transferring bulk materials.

[0058] And due to the different types of bulk materials or the different densities of bulk materials in different states, the left grab 3 (such as Figure 3 The resistance generated by closing is different (for example, the density of soybeans is between 0.7 and 1.0 t / m 3 The resistance to the closing of the grab 3 is between 20 and 35 kN, and the density of iron ore is as high as 4.2-5.0 t / m 3 , the resistance it generates to the closing of the grab bucket 3 is 120-180kN). Therefore, as the density of the bulk material increases, when the two grab buckets 3 close to grab the bulk material, the resistance generated by the bulk material to the two pushing pieces 53 will also increase with the increase in the bulk material density, and the distance that the two pushing pieces 53 are compressed and moved will increase. At this time, through the cooperation of the above-mentioned two pushing pieces 53 and the speed regulating assembly 5, the rotation angle of the multiple speed regulating valves 9 will also gradually increase, so that the greater the bulk material density, the effect that the closing speed of the two hydraulic rods 7 driving the two grab buckets 3 gradually decreases and the opening speed gradually increases can be achieved. This helps to improve the stability and efficiency of the transfer equipment 1 when conveying bulk materials of different densities. At the same time, it can also effectively reduce the staff's cleaning work on the site after the equipment transfers the bulk material, and reduce the staff's workload for transferring the bulk material.

[0059] Reference Figure 3-Figure 18 , a limit assembly 6 is provided in the protective cover 56, and the limit assembly 6 includes a fixed rod fixedly mounted on the inner wall of the protective cover 56, a threaded rod 62 is passed through and rotatably mounted on the fixed rod, a nut is threadedly mounted on the threaded rod 62, and an elastic engaging member 63 is mounted on the nut, (such as Figure 18 As shown, an elastic engaging member 63 is provided which consists of a plate body, a circular roller, a second pawl, and a second compression spring. The plate body is fixedly mounted on the nut, the circular roller is rotatably mounted on the plate body, the second pawl is fixedly mounted on the circular roller, and the second compression spring is fixedly mounted between the second pawl and the plate body. A second spur gear 64 is fixedly mounted on the threaded rod 62, and an arc-shaped rack 61 which matches the second spur gear 64 is fixedly mounted on the circular disc 58.

[0060] When the left grab bucket 3 rotates counterclockwise and closes, it grabs bulk materials with higher density (such as Figure 3 As shown in the direction), and through the cooperation of the rotating shaft 54 ​​and the connecting member 57, the driving disc 58 and the arc-shaped rack 61 thereon rotate counterclockwise (as shown in the direction), the driving disc 58 and the arc-shaped rack 61 thereon rotate counterclockwise (as shown in the direction). Figure 8 In the direction shown), the driving force generated by the arc-shaped rack 61 on the spur gear 2 64 (when set in the initial state, the arc-shaped rack 61 and the spur gear 2 64 are in meshing state) can make the threaded rod 62 rotate and drive the nut to move to the lower right (as shown). Figure 18At this time, the elastic engaging member 63 cooperates with the corresponding slot (similar to the corresponding ratchet and pawl structure) to limit the rotation direction of the cylinder 516, so that the cylinder 516 can only be rotated clockwise at this stage.

[0061] When the grab bucket 3 grabs bulk materials with a relatively high density, the resistance of the bulk materials pushes the two push members 53 to move a certain distance, and when the elasticity generated by the corresponding multiple spring telescopic rods 52 after being compressed is balanced with the resistance of the bulk materials to the movement of the two push members 53, the two push members 53 will stop moving. At this time, when the left grab bucket 3 drives the rotating shaft 54, the disc 58 and the second rack 519 to continue to rotate counterclockwise (such as Figure 10 As shown in the direction, the second rack 519 has two adjacent tooth blocks, which limit the engagement of the corresponding tooth blocks on the driving gear plate 513 and provide a rotational driving force, so that the driving gear plate 513 can drive the two push rods 514 to rotate counterclockwise along with the rotating shaft 54 ​​and the disc 58.

[0062] When the two push rods 514 drive the two elastic driving members 515 to rotate counterclockwise around the cylinder 516 (as shown in FIG. Figure 14 The two elastic driving members 515 are intermittently compressed and released due to the rotational resistance generated by the groove on the cylinder 516 and the two elastic driving members 515. At this time, the cylinder 516 is limited in rotation by the elastic engaging member 63, so that the cylinder 516 cannot be rotated and reset by the self-elastic force of the torsion spring 517. This ensures that after the grab 3 adaptively reduces the closing speed of the grab 3 according to the density of the transferred bulk material by the displacement of the two pushing members 53 and the driving member, the grab 3 is transporting the bulk material or in the early stage of unloading the bulk material. The cylinder 516 will rotate counterclockwise and reset due to the self-elastic force of the torsion spring 517 (as shown in the direction shown). Figure 12 In the direction shown), when the cylinder 516 rotates and resets, it cooperates with the adjusting component to drive multiple spur gears 521 to rotate and reset, and adjust the corresponding speed regulating valve 9 to the initial valve opening, that is, the two hydraulic rods 7 are restored to the initial operation state of driving the two grab buckets 3 to open at a low speed.

[0063] After the grab bucket 3 is unloaded at a suitable opening speed according to the type of bulk material through the above operating principle, the left grab bucket 3 can drive the two arc boxes 59 to rotate clockwise around the shaft 4 through the cooperation of the rotating shaft 54 ​​and the connecting piece 57 (as shown in the figure). Figure 8As shown in the direction, and at this stage, because the two pushing members 53 are not subjected to the corresponding horizontal extrusion force, the two pushing members 53 can be driven to move and reset under the elastic force of the corresponding multiple spring telescopic rods 52. At this time, through the cooperation of the two pushing members 53, the rack frame 55, the rotating gear 1 510, the rotating gear 2 511 and the first rack 512, the driving gear disc 513 can drive the two pushing rods 514 and the elastic driving member 515 to rotate counterclockwise and reset (at this time, the two elastic driving members 515 cannot drive the cylinder 516 to rotate), so that the two elastic driving members 515 can be moved back to the inside of the corresponding arc box 59 and separated from the corresponding slot.

[0064] Wait until the two elastic driving members 515 move back into the corresponding arc boxes 59 (such as Figure 11 As shown in the state), after the two pushing members 53 move to reset, the rotating shaft 54, the disc 58 and the arc-shaped rack 61 are driven to rotate continuously clockwise by the left grab 3. The reverse driving force exerted by the arc-shaped rack 61 on the spur gear 2 64 can make the threaded rod 62 rotate in the reverse direction, and the driving nut drives the elastic engaging member 63 to move to the upper left and reset (as shown in the state). Figure 18 As shown in the direction), until the elastic engaging member 63 is separated from the corresponding slot on the cylinder 516, and the limiting force applied to the cylinder 516 disappears, at this time, under the elastic force of the torsion spring 517 itself, the cylinder 516 can be driven to drive the driving gear in the reverse direction, that is, to rotate counterclockwise to reset (as shown in the direction shown in the direction). Figure 12 In the direction shown), at this time, through the cooperation of the driving gear and the second rack 519, the two support frames 520, the multiple third racks 522 and the multiple spur gears 521, the multiple speed regulating valves 9 can be driven to rotate and reset, so that the two hydraulic rods 7 can be adjusted to the initial operating state, that is, the two hydraulic rods 7 are adjusted to drive the grab bucket 3 to close at high speed and open at low speed. In this way, the two grab buckets 3 can automatically adapt to adjust their closing and opening speeds according to the density of the bulk material to be transferred subsequently, which helps to improve the efficiency and stability of the transfer equipment 1 in conveying bulk materials through the grab bucket 3.

[0065] The springs installed inside the multiple spring telescopic rods 52 are all made of high-strength alloy spring steel (such as 60Si2MnA, 50CrVA). The tensile strength of this material is ≥1800MPa, which is more than 3 times the fatigue life of ordinary spring steel (such as 65Mn). This can help to improve the tensile strength of the spring telescopic rod 52 and its service life. At the same time, in order to further ensure the elastic strength of the grab bucket 3 during reciprocating closing and multiple spring telescopic rods 52 are reciprocatingly compressed, the surface of the spring can be strengthened during the production process of this type of spring (such as surface hardening technology, coating protection technology, heat treatment optimization and other processes). This can help to further improve the elastic limit of the spring telescopic rod 52 as well as its fatigue resistance and wear resistance, that is, it helps to improve the timeliness and effectiveness of adjusting the closing and opening speed of the grab bucket 3 by cooperating with the speed regulating component 5 after the push piece 53 reciprocates and compresses the corresponding spring telescopic rod 52.

[0066] Reference Figure 3 、 Figure 19 Two limiting plates 10 are fixedly mounted on the two grab buckets 3 , and two grooves are provided on the two grab buckets 3 to match the corresponding limiting plates 10 .

[0067] When the two grab buckets 3 grab the bulk material and move to the top of the material receiving equipment, the two grab buckets 3 start unloading in the initial stage. At this time, the multiple flow limiting plates 10 cooperate to cushion the falling bulk material, which can effectively reduce the impact force of the concentrated falling bulk material on the material receiving equipment (such as a conveyor belt), ensuring the stability of the material receiving equipment in continuously receiving and transmitting bulk materials. Especially when the grab buckets 3 transfer high-density bulk materials, such as ore and other harder materials, the falling bulk material of a certain weight will generate a greater impact force on the material receiving equipment, which is easy to cause damage to the material receiving equipment and reduce its service life.

[0068] The sizes of the multiple grooves are much larger than the corresponding flow limiting plates 10, and the sizes of the two placement grooves 51 on the right are also much larger than the corresponding push members 53. As the two grab buckets 3 are closed to grab the bulk material, some bulk material may enter the multiple grooves and the two placement grooves 51 on the right side of the grab bucket 3 (such as Figure 19 The purpose of setting multiple grooves with sizes larger than the corresponding flow limiting plates 10 and the two placement grooves 51 on the right side with sizes larger than the corresponding push members 53 is to ensure that during the process of the two grab buckets 3 closing to grab bulk materials, multiple flow limiting plates 10 can smoothly enter the corresponding grooves, and the two push members 53 can also smoothly enter the corresponding placement grooves 51, so as to ensure that the subsequent two grab buckets 3 can be fully closed under force, and the sealing effect of the grabbed bulk materials can be avoided, so as to avoid the bulk materials from falling from the gap between the two grab buckets 3 during the process of the transfer equipment 1 conveying the bulk materials through the grab bucket 3, thereby increasing the loss of the transfer equipment 1 in the transmission of bulk materials.

[0069] Reference Figure 3 、 Figure 20 、 Figure 21 A cleaning assembly 12 is commonly provided between the two grab buckets 3 and the driving device 2 for automatically cleaning the inner and outer walls of the two grab buckets 3. The cleaning assembly 12 includes a rotating rod 11 respectively fixedly mounted on the two grab buckets 3, and the two rotating rods 11 are rotatably connected to the driving device 2. A scraper 121 is fixedly mounted on the two rotating rods 11. A fixed box is fixedly mounted on the two grab buckets 3, and the two rotating rods 11 are penetrated and rotatably mounted on the corresponding fixed box. A parallel axis gear 122 is fixedly mounted on the two rotating rods 11. Round rods are rotatably mounted on the inner walls of the two grab buckets 3, and the two round rods are penetrated and rotatably mounted on the corresponding fixed box. A torsion spring 2 is fixedly mounted between the two round rods and the corresponding fixed box. An incomplete gear 123 is installed on the two round rods through a one-way bearing, and the two incomplete gears 123 are meshed with the corresponding parallel axis gear 122. A scraper 2 124 is fixedly mounted on the two round rods.

[0070] When the transfer equipment 1, the driving equipment 2 and the two grab buckets 3 cooperate to transfer bulk materials, the inner and outer walls of the grab buckets 3 are prone to adhere to impurities or bulk materials after long-term use (for example, the bulk materials to be transferred by the equipment are highly viscous materials, such as wet sticky coal, wet bentonite, etc.). In order to ensure the stability of the transfer equipment 1 in transferring bulk materials, the weight of the bulk materials transferred by the transfer equipment 1 in a single time is usually limited according to the type of bulk materials. If the impurities on the inner and outer walls of the grab buckets 3 gradually increase, the weight of the grab buckets 3 themselves will gradually increase, which will not only reduce the transfer equipment 1's ability to transfer bulk materials through the grab buckets 3 in a single time, but also reduce the weight of the bulk materials transferred by the grab buckets 3 in a single time. The material transmission capacity will be increased, and the excess energy consumption of the rotating shaft equipment 1 in conveying bulk materials will be increased. In addition, a lot of impurities or bulk materials will adhere to the inner and outer walls of the grab bucket 3. In order to avoid overload during the process of the transfer equipment 1 conveying bulk materials, the staff are usually required to clean the inner and outer walls of the grab bucket 3 regularly, which will easily reduce the efficiency and continuity of the transfer equipment 1 in conveying bulk materials. In addition, if the sticky materials adhering to the inner and outer walls of the grab bucket 3 are not removed in time, the materials adhering to the grab bucket 3 will easily fall off during the process of the transfer equipment 1 driving the grab bucket 3 to move, causing the risk of damage to the port staff.

[0071] like Figure 3 The direction shown is set in the initial state, and when the two grab buckets 3 are in the fully expanded state, the two scraper blades 121 are located at the uppermost end of the curved outer wall of the corresponding grab bucket 3, and the two scraper blades 2 124 are located at the uppermost end of the curved inner wall of the corresponding grab bucket 3.

[0072] When the two grab buckets 3 are rotated inwards by force (such as Figure 3When the two rotating rods 11 are driven to rotate together (such as the left rotating rod 11 is forced to rotate counterclockwise, and the right rotating rod 11 is forced to rotate clockwise), the two rotating rods 11 can drive the two scrapers 121 to move downward along the arc surface of the corresponding grab bucket 3, and remove the impurities adhering to the outer walls of the two grab buckets 3, thereby achieving the effect of automatic cleaning of the outer walls of the grab bucket 3. This not only helps to improve the cleanliness of the outer wall of the grab bucket 3 after continuous use, and ensures the continuous conveying efficiency and effect of the transfer equipment 1 through the grab bucket 3 of bulk materials, but also helps to reduce the situation where impurities adhere to the outer wall of the grab bucket 3 or bulk materials fall when the transfer equipment 1 drives the grab bucket 3 to transfer bulk materials, thereby polluting the port environment or injuring other equipment and port personnel in the port, thereby improving the safety of the transfer equipment 1 in the process of conveying bulk materials.

[0073] At the same time, the two grab buckets 3 are rotated and closed, driving the left rotating rod 11 to rotate counterclockwise and the right rotating rod 11 to rotate clockwise (as shown in FIG. Figure 3 In the direction shown), the two one-way bearings are in a stationary state, that is, at this time, the two round rods cannot be driven to drive the corresponding scraper 2 124 to rotate through the cooperation of the corresponding parallel axis gear 122 and the incomplete gear 123.

[0074] When the two grab buckets 3 rotate outward relative to each other to discharge materials, the left rotating rod 11 rotates clockwise and the right rotating rod 11 rotates counterclockwise (such as Figure 3 In the direction shown), through the cooperation with the corresponding parallel shaft gear 122, the incomplete gear 123 and the one-way bearing, the two round rods can be driven to rotate relative to each other, and the two scrapers 124 can be driven to rotate downward, so as to effectively remove the impurities and bulk materials adhering to the inner wall of the corresponding grab bucket 3. In this way, the cleanliness of the grab bucket 3 can be effectively ensured during the continuous transfer of bulk materials. At the same time, it can also ensure that the transfer equipment 1 can maintain a stable conveying efficiency, convey the bulk materials, and improve the conveying speed of the equipment for the bulk materials.

[0075] At the same time, when the two grab buckets 3 continue to expand, the two scrapers 124 are moved to the lower end of the corresponding grab bucket 3 (such as Figure 19 When the two grab buckets 3 are fully deployed and start to grab the bulk material again, that is, before the two grab buckets 3 stop running, the two scraper blades 124 can be driven to quickly rotate upward and reset through the elastic force of the two torsion springs 2, so that the two scraper blades 2 124 can continue to automatically clean the inner wall of the corresponding grab bucket 3 (and in the process of the two grab buckets 3 being deployed under force, the two scraper blades 1 121 can be driven to rotate upward and reset through the cooperation of the two rotating rods 11 to clean the outer wall of the corresponding grab bucket 3 again).

[0076] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0077] In the present invention, when the equipment is required to transfer bulk materials, the two grab buckets 3 rotate and close to grab the bulk materials (such as Figure 3 In the direction shown), if the density of the bulk material to be transferred is low, the two hydraulic rods 7 can be used to cooperate with each other to drive the two grab buckets 3 to remain in a high-speed closing and low-speed unloading state to transfer the bulk material, so as to improve the conveying speed and conveying effect of the transfer equipment 1 for the bulk material at this stage. If the density of the bulk material to be transferred is large, the extrusion pressure generated by the bulk material on the two pushing members 53 drives the two pushing members 53 to move. Through the cooperation of the transmission component and the driving component, the closing speed of the two grab buckets 3 driven by the hydraulic rod 7 can be gradually reduced, and the opening speed of the two grab buckets 3 can be gradually increased. In this way, the two grab buckets 3 can adaptively adjust their closing and opening speeds according to the density of the bulk material to be transferred, so that the transfer equipment 1 can maintain a stable conveying efficiency and transfer the bulk material, which is helpful to improve the transmission effect and efficiency of the bulk material by the transfer equipment 1. At the same time, it can also protect the transfer equipment 1 to a certain extent and increase its service life.

[0078] At the same time, when the two grab buckets 3 are closed to grab bulk materials, the impurities adhering to the outer walls of the two grab buckets 3 can be automatically cleaned through the cooperation of the two rotating rods 11 and the scraper 1 121. At the same time, the two scrapers 2 124 can be driven to rotate through the cooperation of the rotating rod 11 and the cleaning component 12 to scrape off the impurities and bulk materials adhering to the inner walls of the two grab buckets 3, thereby ensuring the cleanliness of the two grab buckets 3 after continuous operation. This not only reduces the number of times the grab buckets 3 are stopped for cleaning, and improves the continuity and stability of the transfer equipment 1 in conveying bulk materials (avoiding overload), but also helps to reduce the damage caused to port personnel or pollution of the port environment by impurities or bulk materials adhering to the grab buckets 3, thereby improving the safety of the transfer equipment 1 in conveying bulk materials.

[0079] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A dual-track bulk material intelligent transfer device for ocean ports, comprising a transfer device (1) and two grab buckets (3), wherein a driving device (2) is mounted on the transfer device (1), two shafts (4) are fixedly mounted on the lower end of the driving device (2), and both shafts (4) are rotatably connected to the corresponding grab buckets (3), characterized in that: A speed regulating assembly (5) is provided between the grab bucket (3) on the left and the corresponding shaft (4) for adaptively adjusting the conveying speed of the transfer equipment (1) for bulk materials; The speed regulating assembly (5) comprises a hydraulic press fixedly mounted on a driving device (2), two hydraulic rods (7) fixedly mounted on the driving device (2), two fluid delivery pipes (8) fixedly connected between the two hydraulic rods (7) and the hydraulic press, a speed regulating valve (9) mounted on each of the fluid delivery pipes (8), a telescopic rod (518) fixedly mounted on the lower end of the driving device (2), and a second rack (519) fixedly mounted on the lower end of the telescopic rod (518); An adjusting component is installed between the second rack (519) and the speed regulating valve (9), and an induction mechanism is installed between the grab bucket (3) on the left and the second rack (519).

2. The dual-track intelligent bulk material transfer device for ocean ports according to claim 1, characterized in that: The regulating component comprises a spur gear (521) fixedly mounted on the speed regulating valve (9), two support frames (520) fixedly mounted on the second rack (519), and both support frames (520) are penetrated and slidably mounted on the driving device (2), and two third racks (522) are fixedly mounted on the two support frames (520), and both third racks (522) are meshed with the corresponding spur gear (521).

3. The dual-track intelligent bulk material transfer device for ocean ports according to claim 1, characterized in that: The sensing mechanism comprises two placement slots (51) respectively provided on the two grab buckets (3), the two placement slots (51) on the left are fixedly mounted with spring telescopic rods (52) that are evenly distributed linearly, and a push piece (53) is fixedly mounted between the corresponding spring telescopic rods (52), and the two push pieces (53) are sealed and slidably mounted on the corresponding placement slots (51); A protective cover (56) is fixedly installed on the upper end of the grab bucket (3) on the left side, a rack rack (55) is fixedly installed between the two pushing members (53), a rotating shaft (54) is rotatably installed on the inner wall of the protective cover (56), a rotating gear (510) meshing with the rack rack (55) is fixedly installed on the rotating shaft (54), a transmission component is installed between the rotating shaft (54) and the left shaft rod (4), and a driving component is installed between the left shaft rod (4) and the second rack (519).

4. The dual-track intelligent bulk material transfer device for ocean ports according to claim 3, characterized in that: The transmission component includes a connecting member (57) fixedly mounted on a rotating shaft (54), a disc (58) fixedly mounted on the connecting member (57), and the disc (58) is rotatably connected to the shaft (4), the disc (58) is provided with two arc-shaped openings, an arc-shaped box (59) is fixedly mounted on each of the two arc-shaped openings, a push rod (514) is slidably mounted on each of the two arc-shaped boxes (59), and an elastic driving member (515) is mounted on each of the two push rods (514); A second rotating gear (511) is fixedly mounted on the rotating shaft (54), two positioning rods are fixedly mounted on the inner wall of the protective cover (56), a first rack (512) meshing with the second rotating gear (511) is passed through and slidably mounted between the two positioning rods, a driving gear disc (513) meshing with the first rack (512) is rotatably mounted on the shaft (4), and the driving gear disc (513) is fixedly connected to one end of the two push rods (514).

5. The dual-track intelligent bulk material transfer device for ocean ports according to claim 3, characterized in that: The driving component comprises a cylinder (516) rotatably mounted on a shaft (4); a fixing plate is fixedly mounted on the shaft (4); a torsion spring (517) is fixedly mounted between the fixing plate and the cylinder (516); the cylinder (516) is provided with grooves uniformly distributed in an annular shape; and a driving gear meshing with a second rack (519) is fixedly mounted on the cylinder (516).

6. The dual-track bulk material intelligent transfer device for ocean ports according to claim 4, characterized in that: A limit assembly (6) is provided in the protective cover (56), and the limit assembly (6) includes a fixed rod fixedly mounted on the inner wall of the protective cover (56), a threaded rod (62) passing through the fixed rod and rotatably mounted, a nut threadedly mounted on the threaded rod (62), an elastic engaging member (63) mounted on the nut, a spur gear 2 (64) fixedly mounted on the threaded rod (62), and an arc-shaped rack (61) matched with the spur gear 2 (64) fixedly mounted on the disc (58).

7. The dual-track intelligent bulk material transfer device for ocean ports according to claim 1, characterized in that: A cleaning assembly (12) is commonly provided between the two grab buckets (3) and the driving device (2), and is used for automatically cleaning the inner and outer walls of the two grab buckets (3). The cleaning assembly (12) comprises rotating rods (11) respectively fixedly mounted on the two grab buckets (3), and the two rotating rods (11) are both rotatably connected to the driving device (2), and a scraper (121) is fixedly mounted on the two rotating rods (11); A fixing box is fixedly mounted on each of the two grab buckets (3), and two rotating rods (11) are both passed through and rotatably mounted on the corresponding fixing boxes. A parallel shaft gear (122) is fixedly mounted on each of the two rotating rods (11). Round rods are rotatably mounted on the inner walls of each of the two grab buckets (3), and both round rods are passed through and rotatably mounted on the corresponding fixing boxes. Torsion springs 2 are fixedly mounted between the two round rods and the corresponding fixing boxes. Incomplete gears (123) are mounted on each of the two round rods via one-way bearings, and both incomplete gears (123) are meshed with the corresponding parallel shaft gears (122). Scraper 2 (124) is fixedly mounted on each of the two round rods.

8. The dual-track intelligent bulk material transfer device for ocean ports according to claim 1, characterized in that: Two flow limiting plates (10) are fixedly mounted on the two grab buckets (3), and two grooves matching the corresponding flow limiting plates (10) are provided on the two grab buckets (3).

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