A material taking device and ship unloader

Abstract

The present application relates to the technical field of port equipment, and particularly relates to a material taking device and a ship unloader. The material taking device comprises: a rotating shaft; at least two groups of material taking units which are arranged at intervals on the rotating shaft, each group of material taking units comprising: a chain bucket arm and a bucket chain, the chain bucket arm being rotatably connected with the rotating shaft; the bucket chain being formed by sequentially connecting a plurality of buckets in a head-to-tail manner, and the bucket chain being arranged around the outer circumferential side of the chain bucket arm; and a driving unit adapted to drive the bucket chain to operate relative to the chain bucket arm. The material taking device provided by the present application realizes the simultaneous use of at least two bucket chains to dig and take materials by arranging at least two groups of material taking units at intervals, and compared with the traditional single bucket chain for digging and taking materials, the working efficiency is significantly improved; in the case of the same material taking width of the traditional single bucket, at least two buckets are arranged to reduce the size of a single bucket in the material taking width direction, the stress is more uniform and reasonable, the problem of deformation of the bucket is avoided, and the service life is beneficially prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of port equipment, in particular to a material taking device and ship unloader. BACKGROUND

[0002] The ship unloader is an execution device for loading and unloading bulk materials. The chain bucket ship unloader solves the problems of material leakage and dust in the use of traditional grab ship unloaders, has outstanding environmental protection advantages, and is widely used in port bulk cargo unloading wharfs. The chain bucket ship unloader unloads materials through a plurality of hoppers arranged in series. However, as the amount of goods in the port increases, the demand for ship unloaders gradually increases, and the requirement for the working efficiency of the ship unloaders is higher and higher. However, the working efficiency of the existing material taking device of the ship unloader gradually cannot meet the demand, and there is an urgent need to design a material taking device capable of improving the working efficiency. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to overcome the low working efficiency of the material taking device in the prior art, so as to provide a material taking device capable of improving the working efficiency.

[0004] Another technical problem to be solved by the present application is to overcome the low working efficiency of the ship unloader in the prior art, so as to provide a ship unloader with high working efficiency.

[0005] To solve the above technical problems, the present application provides a material taking device, comprising:

[0006] a rotating shaft;

[0007] at least two groups of material taking units are arranged at intervals on the rotating shaft, each group of the material taking units comprises a chain bucket arm and a hopper chain, the chain bucket arm is rotatably connected with the rotating shaft, and the hopper chain is formed by sequentially connecting a plurality of hoppers in a head-to-tail manner and arranged around the outer circumferential side of the chain bucket arm;

[0008] a driving unit adapted to drive the hopper chain to rotate relative to the chain bucket arm.

[0009] Optionally, the material taking device further comprises a driving sprocket arranged on the rotating shaft and coaxially arranged with the rotating shaft, the outer circumferential side of the driving sprocket is in close contact with the hopper chain, and the driving unit is adapted to drive the hopper chain to rotate through the driving sprocket.

[0010] Optionally, the number of the driving sprockets is at least 2N, and at least 2N driving sprockets are arranged at intervals along the axis direction of the rotating shaft, wherein N is equal to the number of the material taking units, and the hopper chain of each group of the material taking units is connected with two adjacent driving sprockets.

[0011] Optionally, the number of the taking units is two groups, and the number of the driving chain wheels is four.

[0012] Optionally, at least 2N driving chain wheels are coaxially arranged and driven by the same group of driving units.

[0013] Optionally, each group of taking units further comprises two tension chain wheels arranged at one end away from the driving chain wheel along the length direction of the chain bucket arm, the two tension chain wheels are adapted to stretch the bucket chain and form at least a part of the bucket chain into a taking section adapted to contact with the material, and the end of the taking section and the driving chain wheel form a lifting section adapted to lift the material.

[0014] Optionally, the bucket chain changes the orientation of the opening of the bucket after passing around the driving chain wheel from the end of the lifting section and completes the unloading.

[0015] Optionally, each group of taking units further comprises:

[0016] a first redirecting chain wheel arranged between the driving chain wheel and the head end of the taking section, the bucket chain forms a first descending section between the driving chain wheel and the first redirecting chain wheel, and forms a second descending section between the first redirecting chain wheel and the head end of the taking section, the second descending section is arranged at an angle with the first descending section.

[0017] a second redirecting chain wheel arranged between the driving chain wheel and the first redirecting chain wheel, the bucket chain forms an unloading section between the driving chain wheel and the second redirecting chain wheel.

[0018] Optionally, two adjacent buckets of the bucket chain are connected by a connecting plate, and the bucket back plate of the bucket is fitted to the outer circumferential side of the driving chain wheel.

[0019] The unloading machine provided by the present application comprises the taking device as described above.

[0020] The technical scheme of the present application has the following advantages:

[0021] 1. The taking device provided by the present application can realize the simultaneous use of at least two bucket chains to dig and take the material by arranging at least two groups of taking units at intervals, which significantly improves the work efficiency compared with the traditional single bucket chain digging and taking of the material. On the other hand, under the condition of the same taking width of the traditional single bucket, the arrangement of at least two buckets can reduce the size of the single bucket along the taking width direction, so that the stress of the taking device is more uniform and reasonable, which can improve the work efficiency and avoid the deformation of the bucket caused by flexibility or uneven stress, thereby prolonging the service life.

[0022] 2. The material taking device provided by the application has simple structure, high reliability, is convenient to operate, can realize continuous operation of the hopper chain, and is favorable for improving work efficiency.

[0023] 3. The material taking device provided by the application has simple structure, high reliability, is convenient to operate, can realize continuous operation of the hopper chain, and is favorable for improving work efficiency.

[0024] 4. The material taking device provided by the application has simple structure, high reliability, is convenient to operate, can realize continuous operation of the hopper chain, and is favorable for improving work efficiency.

[0025] 5. The material taking device provided by the application has simple structure, high reliability, is convenient to operate, can realize continuous operation of the hopper chain, and is favorable for improving work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0027] Figure 1 is a schematic view of an L-shaped chain bucket unloader in the prior art;

[0028] Figure 2 is a schematic view of the use state of the unloader of the application;

[0029] Figure 3 is a schematic view of the structure of the material taking device of the application along the ship width direction;

[0030] Figure 4 is a schematic view of the structure of the material taking device of the application along the ship width direction;

[0031] Figure 5 is a schematic view of the structure of the material taking device of the application along the ship width direction;

[0032] Figure 6 is a schematic view of the structure of the material taking device of the application along the ship width direction; Figure 5 Figure 1 ;​

[0033] Figure 7 For Figure 5 partial enlargement Figure 2 ;

[0034] Figure 8 For the local schematic diagram of the hopper chain of the present application;

[0035] Figure 9 For the schematic diagram of the hopper of the present application;

[0036] Figure 10 For the schematic diagram of the structure of the present application at the material taking opening along the A direction in the middle; Figure 2

[0037] Figure 11 For the enlarged view of the B part in the middle; Figure 2

[0038] Figure 12 For the enlarged view of the C part in the middle; Figure 2

[0039] Figure 13 For the schematic diagram of the structure of the third joint of the present application;

[0040] Figure 14 For the schematic diagram of the cooperation state of the swing mechanism and the material taking device of the present application;

[0041] Figure 15 For the schematic diagram of the multiple swing position states of the material taking device of the present application.

[0042] Explanation of reference signs:

[0043] 10, frame body; 11, door leg; 12, main beam; 13, running trolley; 20, cabin; 30, material; 40, wharf foundation;

[0044] 100, material taking device; 101, driving motor; 1021, first driving sprocket; 1022, second driving sprocket; 1023, third driving sprocket; 1024, fourth driving sprocket; 103, slewing shaft; 104, chain bucket arm; 1041, material receiving opening; 1051, first reversing sprocket; 1052, second reversing sprocket; 106, tensioning push rod; 107, cover shell; 108, tensioning sprocket; 110, hopper chain; 111, hopper; 112, connecting plate; 113, hopper back plate; 114, ear plate;

[0045] 120, material lifting section; 130, first material lowering section; 140, second material lowering section; 150, material taking section; 160, material unloading section;

[0046] ​​​200. Swinging mechanism; 201. Tensioning cylinder of swinging mechanism; 202. Traction rope of swinging mechanism; 203. Redirecting pulley of swinging mechanism; 204. Damping cylinder of swinging mechanism; 205. Damping pulley; 206. Traction hinge point; 210. First swinging state; 220. Second swinging state; 230. Third swinging state;

[0047] 300. Lifting and floating device; 301. Connecting beam; 302. Hinge point; 303. Fixed frame; 304. Intermediate support; 305. Movable frame; 306. Connecting rope; 307. Lifting cylinder; 308. First pulley; 309. Damping cylinder; 310. Second pulley; 311. Third pulley;

[0048] 501. Receiving conveyor unit; 502. Boom conveyor unit; 503. Transfer conveyor unit; 504. Unloading conveyor unit; 505. Dock conveyor unit; 506. First joint; 507. Second joint; 508. Third joint; 5081. Funnel; 5082. Sliding block; 5083. Slide rail; 509. Fourth joint; 510. Door curtain; 511. Dust cover; 601. Boom. Detailed Implementation

[0049] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as there is no conflict.

[0053] Embodiment one

[0054] In combination Figures 1-10 As shown in the embodiment, the material taking device comprises:

[0055] A rotating shaft 103;

[0056] At least two groups of material taking units are arranged at intervals on the rotating shaft 103, and each group of the material taking units comprises a chain bucket arm 104 and a hopper chain 110. The chain bucket arm 104 is rotatably connected with the rotating shaft 103. The hopper chain 110 is formed by sequentially connecting a plurality of hoppers 111 in a head-to-tail manner, and the hopper chain 110 is arranged around the outer circumferential side of the chain bucket arm 104.

[0057] A driving unit is adapted to drive the hopper chain 110 to operate relative to the chain bucket arm 104.

[0058] Optionally, the at least two groups of material taking units are arranged at intervals along the axis direction of the rotating shaft 103, and the at least two groups of material taking units are arranged in parallel.

[0059] Optionally, the chain bucket arm 104 serves as the main structure of the material taking device and is used for supporting other structural components. In the embodiment, the chain bucket arm 104 can be a metal frame which extends along the length direction.

[0060] Optionally, in combination Figure 3 As shown in the embodiment, the stress direction of the hopper chain 110 when the material 30 is excavated is the extension direction of the material taking section 150.

[0061] It should be noted that, as Figure 1As shown, the L-type chain bucket unloader in the prior art mainly adopts a horizontal rotation feeding mode, which is easy to make the chain bucket vertical arm lower end bear a large horizontal force, and easy to cause excessive torsion of the material taking arm, thereby causing failure of the material taking arm rotation mechanism and the arm frame rotation mechanism. The material taking device provided in the embodiment makes the stress direction of the bucket chain 110 when digging the material 30 parallel to the rotation plane of the chain bucket arm 104, so that the material taking device does not bear additional force when working. Optionally, the connection mode between the chain bucket arm 104 and the rotation shaft 103 is hinged, and the rotation shaft 103 can rotate relative to the chain bucket arm 104. When the torsion force of the bucket chain 110 when digging the material 30 is too large, the chain bucket arm 104 will swing freely around the rotation shaft 103 under the action of force. The main load borne by the material taking device is within the plane of the material taking device, which avoids excessive stress of the chain bucket arm 104 and failure, and is beneficial to prolong the service life and improve the efficiency of the equipment.

[0062] The bucket chain 110 is sequentially connected by a plurality of buckets 111, and the bucket chain 110 is configured in a ring shape and is adapted to rotate relative to the chain bucket arm 104 under the driving of the driving unit. A plurality of buckets 111 are arranged on the bucket chain 110, so that the material is dug by the bucket 111 during the cyclic reciprocating movement, and the material 30 is poured after being lifted to a certain height, and then the material is continuously dug. In the embodiment, the material 30 can be coal, and can also be corn, wheat and other grains, or other substances that can be accommodated in the bucket 111.

[0063] Optionally, the material taking device of the embodiment is preferably applied to an unloader. The unloader extends a main beam 12, and the chain bucket arm 104 is installed on the arm frame 601 extending from the main beam 12.

[0064] The material taking device provided in the embodiment can realize simultaneous use of at least two bucket chains 110 to dig the material by means of the interval arrangement of at least two groups of material taking units. Compared with the traditional single-bucket chain digging of the material, the working efficiency is significantly improved. On the other hand, under the condition of the same material taking width of the traditional single bucket, at least two buckets are arranged to reduce the size of the single bucket along the material taking width direction, so that the stress of the material taking device is more uniform and reasonable. In addition to improving the working efficiency, the deformation problem of the bucket caused by flexibility or uneven stress can be avoided, which is beneficial to prolong the service life. The material taking width direction of the bucket refers to the direction perpendicular to the running direction of the bucket chain 110. When the chain bucket arm 104 moves along the Figure 2 The material taking width direction of the bucket is the same as the "ship length direction" indicated by the arrow in the figure. Figure 3 The material taking width direction of the bucket is the same as the "ship length direction" indicated by the arrow in the figure.

[0065] Further, the opening direction of the hopper 111 is parallel to the rotation plane of the hopper chain 110, and the opening direction of the hopper 111 is parallel to the rotation plane of the chain bucket arm 104, and further, the opening direction of the hopper 111 is parallel to the translation direction of the material taking device along the main beam 12, that is, the front feeding mode is adopted, so that the hopper 111 can shovel the material into the hopper more directly when the material is excavated, and the operation efficiency is greatly improved. The front feeding mode can also avoid the material pile from being squeezed on the head of the material taking head, and avoid the large lateral excavation resistance.

[0066] Specifically, the material taking device further comprises: a driving sprocket arranged on the rotating shaft 103 and coaxially arranged with the rotating shaft 103, and the outer periphery of the driving sprocket is in contact with the hopper chain 110, and the driving unit is adapted to drive the hopper chain 110 to rotate via the driving sprocket.

[0067] It should be noted that the driving sprocket is used to drive the hopper chain 110 to rotate, as an embodiment, the driving sprocket is rotatably arranged on the rotating shaft 103, the driving unit directly drives the driving sprocket to rotate, and then drives the hopper chain 110 in contact with the outer periphery of the driving sprocket to rotate; as another alternative embodiment, the driving sprocket is fixedly arranged on the rotating shaft 103, the driving unit drives the rotating shaft 103 to rotate, and the rotating shaft 103 drives the driving sprocket to rotate, and then drives the hopper chain 110 to rotate.

[0068] Optionally, the driving unit is a driving motor 101.

[0069] Optionally, the output shaft at the end of the driving motor 101 is connected to the driving sprocket or the rotating shaft 103 after speed reduction, and the rotating shaft 103 is located at the upper part of the material taking device.

[0070] The material taking device provided in the embodiment drives the hopper chain 110 to rotate through the driving sprocket, which has simple structure, high reliability, is convenient to operate, can realize continuous rotation of the hopper chain 110, and is beneficial to improve the working efficiency.

[0071] Specifically, the number of the driving sprockets is at least 2N, and at least 2N driving sprockets are arranged in the axial direction of the rotating shaft 103, wherein N is equal to the number of the material taking units, and the hopper chain 110 of each group of material taking units is connected to two adjacent driving sprockets.

[0072] It should be noted that each of the hopper chains 110 is driven to rotate by two driving sprockets, and the two driving sprockets are respectively arranged on the two sides of the hopper chain 110 along the hopper material taking width direction, which not only plays a transmission role for the hopper chain 110, but also makes the hopper chain 110 more balanced in stress and more stable in operation.

[0073] The hopper chain 110 of each group of the material taking units is correspondingly connected with two adjacent driving sprockets, so that one of the driving sprockets is arranged on each side of the hopper chain 110 along the hopper material taking width direction, which makes the hopper chain 110 more balanced in stress and more stable in operation.

[0074] Specifically, the number of the material taking units is two groups, and the number of the driving sprockets is four.

[0075] In combination Figure 4 As shown in the figure, the four driving sprockets are respectively a first driving sprocket 1021, a second driving sprocket 1022, a third driving sprocket 1023 and a fourth driving sprocket 1024, and the two groups of the material taking units are a first material taking unit and a second material taking unit. Those skilled in the art can know that the connection relationship between the material taking units and the driving sprockets is that the first material taking unit or the second material taking unit is connected with the first driving sprocket 1021 and the second driving sprocket 1022, the second material taking unit or the first material taking unit is connected with the third driving sprocket 1023 and the fourth driving sprocket 1024, and not a certain material taking unit is connected with the second driving sprocket 1022 and the third driving sprocket 1023 located in the middle.

[0076] The hopper chain 110 of each of the two groups of the material taking units is correspondingly connected with two adjacent driving sprockets, so that one of the driving sprockets is arranged on each side of the hopper chain 110 along the hopper material taking width direction, which makes the hopper chain 110 more balanced in stress and more stable in operation.

[0077] Specifically, at least 2N driving sprockets are coaxially arranged and driven by the same group of driving units.

[0078] The hopper chain 110 of each of the two groups of the material taking units is correspondingly connected with two adjacent driving sprockets, so that one of the driving sprockets is arranged on each side of the hopper chain 110 along the hopper material taking width direction, which makes the hopper chain 110 more balanced in stress and more stable in operation.

[0079] Specifically, each group of material taking units further comprises: two tension sprockets 108 arranged at one end away from the driving sprocket along the length direction of the chain bucket arm 104, the two tension sprockets 108 being adapted to stretch the bucket chain 110 and form at least a part of the bucket chain 110 into a material taking section 150 adapted to contact the material 30; and a material lifting section 120 formed between the end of the material taking section 150 and the driving sprocket, the material lifting section 120 being adapted to lift the material 30.

[0080] In combination Figure 5 As shown, the two tension sprockets 108 are located at the lower part of the material taking device, and the two tension sprockets 108 can stretch the lower part of the bucket chain 110 so that the plurality of buckets can be in an open forward state when running to this position, thereby facilitating simultaneous material taking of the plurality of buckets and improving the material taking efficiency.

[0081] It should be noted that the end of the material taking section 150 refers to the end of the bucket chain 110 in contact with the material 30 in the rotation direction of the bucket chain 110. Correspondingly, the head of the material taking section 150 refers to the head of the bucket chain 110 in contact with the material 30 in the rotation direction of the bucket chain 110.

[0082] Optionally, the material taking device further comprises: a tension push rod 106 arranged between the two tension sprockets 108 and adapted to maintain the relative distance of the two tension sprockets 108 to tension the bucket chain 110. Thus, the tension of the bucket chain 110 is ensured, and the length of the material taking section 150 is maintained.

[0083] Optionally, the material lifting section 120 in the embodiment is a straight section. By arranging the material lifting section 120 as a straight section, the bucket is always kept in a straight line, thereby ensuring the stability of the material lifting process.

[0084] Specifically, the bucket chain 110 changes the orientation of the opening of the bucket 111 after passing around the driving sprocket from the end of the material lifting section 120 and completes the unloading.

[0085] Specifically, each group of material taking units further comprises:

[0086] a first redirecting sprocket 1051 arranged between the driving sprocket and the head of the material taking section 150, the bucket chain 110 forming a first descending section 130 between the driving sprocket and the first redirecting sprocket 1051, and forming a second descending section 140 between the first redirecting sprocket 1051 and the head of the material taking section 150, the second descending section 140 being arranged at an angle with the first descending section 130;

[0087] A second redirecting sprocket 1052 is arranged between the driving sprocket and the first redirecting sprocket 1051, and the hopper chain 110 forms a discharging section 160 between the driving sprocket and the second redirecting sprocket 1052.

[0088] Optionally, the first redirecting sprocket 1051 is arranged between the driving sprocket and the first end of the material taking section 150, so that the hopper chain 110 forms a first descending section 130 and a second descending section 140, and the second descending section 140 is arranged at an angle with the first descending section 130, so that the hopper chain 110 is generally configured in a herringbone shape, that is, the load-lifting hopper and the load-descending hopper are close to each other at the upper part of the material taking device, so that the upper structure of the material taking device is small, and after being redirected by the first redirecting sprocket 1051, the load-lifting hopper and the load-descending hopper are far away from each other at the lower part of the material taking device, and the load-descending hopper is bent at an angle, so that the lower part of the material taking device is formed in a triangular shape, and the material taking section 150 is conveniently arranged.

[0089] In combination with FIGS. 1 to 5, Figure 2 Figure 5 As shown in FIGS. 1 to 5, the material taking device is generally configured in a herringbone shape. By adopting the herringbone-shaped material taking device, the blade line front feeding mode with higher force efficiency is adopted. At the bottom of the herringbone structure, in order to enable the material taking arm to dig the material below the hatch coaming, a material taking section 150 with sufficient length is arranged at the bottom of the material taking device, so that the hopper can dig the material at a high speed in the ship width direction, and the efficiency is greatly improved. The conventional L-shaped material taking head is used to realize the feeding of the material into the hopper by left and right swinging. However, the deep and narrow material taking device is not easy to completely discharge the material, and the rotary feeding mode must be used in combination with the L-shaped material taking device and the deep and narrow hopper, so as to realize the rotary stacking and extruding feeding. The material taking device provided in the embodiment adopts the front material taking head with the herringbone structure, compared with the conventional chain hopper ship unloader, the structure is simpler, the stress on the whole bottom of the material taking device is more uniform, and the cost is lower.

[0090] Optionally, a funnel or other material collecting device can be arranged at a position opposite to the discharging section 160, so as to facilitate the subsequent transfer of the material. By arranging the discharging section 160, the interference of the downward moving empty hopper on the full hopper which needs to be discharged can be reduced, and the efficient discharging operation can be ensured.

[0091] Optionally, a cover 107 for dust prevention is arranged outside the hopper chain 110, and the hopper is only exposed at the lower part of the material taking device.

[0092] Due to the rotary feeding mode of the conventional chain hopper ship unloader, the deep and narrow hopper is selected for the chain hopper, so as to facilitate the digging. However, the deep and narrow hopper is not easy to completely discharge the material. The hopper in the embodiment can be arranged in a wide and shallow form, so as to facilitate the feeding and discharging of the material.​

[0093] Specifically, two adjacent hoppers 111 of the hopper chain 110 are connected by a connecting plate 112, and the hopper back plate 113 of the hopper 111 is fitted to the outer circumferential side of the driving sprocket.

[0094] In combination Figure 8 , Figure 9 As shown, the hopper chain 110 is connected by hoppers 111 and connecting plates 112 alternately, and the two ends of the hopper 111 are provided with an ear plate 114, and the ear plate 114 is provided with a shaft hole, and the connecting plate 112 is also provided with a shaft hole, and the ear plate 114 and the connecting plate 112 are hinged by a pin shaft, so as to connect all the hoppers together to form a hopper chain. The traditional chain bucket unloader adopts chain transmission, and the material taking chain bucket is installed between two chains, and the driving device drives the chain to drive the chain bucket to move. This transmission mode has high requirements for the performance of the chain, and the chain is easy to be damaged and needs to be replaced regularly, which has high maintenance cost. The material taking device of the embodiment cancels the traditional chain transmission, utilizes the connecting plate and the hopper back plate transmission, connects each hopper by the connecting plate, and makes the hopper become a part of the transmission. The hopper is not only a working mechanism for digging and taking materials, but also participates in the transmission as a part of the hopper chain, increases the stress area, and improves the reliability.

[0095] Optionally, the driving sprocket and the redirecting sprocket act on the connecting plate, the connecting plate is connected with the pin shaft on the back plate, and the connecting plate is outside the hopper, so that the hopper does not interfere with the driving and redirecting. The connecting plate is made of high-strength material to ensure the reliability of driving and redirecting.

[0096] Embodiment two

[0097] In combination Figure 1 As shown, the embodiment provides an unloader, which comprises:

[0098] The material taking device 100 as described above.

[0099] Optionally, the unloader further comprises a belt conveying system, and the belt conveying system comprises:

[0100] A material receiving port 1041;

[0101] An arm frame conveying unit 502 is arranged on the arm frame 601 along the extension direction of the arm frame 601, and the arm frame conveying unit 502 is arranged below and spaced apart from the material receiving port 1041 in the horizontal direction.

[0102] The material receiving and conveying unit 501 is arranged between the material receiving port 1041 and the boom conveying unit 502, and is arranged at an angle with the extension direction of the boom conveying unit 502, and is adapted to receive the material guided from the material receiving port 1041 and convey the material to the boom conveying unit 502 along the extension direction of the material receiving and conveying unit 501.

[0103] The belt conveying system of the chain bucket ship unloader provided by the embodiment is adapted to realize the transfer of the material guided from the material receiving port 1041 to the boom conveying unit 502 through the material receiving and conveying unit 501, ensure the stability of the conveying process, and avoid the material blockage and spillover caused by the traditional rotary feeding, thereby improving the work efficiency, reducing the failure rate of the whole machine, and improving the environmental protection effect.

[0104] Optionally, the belt conveying system further comprises a first joint 506 arranged between the material receiving and conveying unit 501 and the boom conveying unit 502, and the first joint 506 is open at both ends and is adapted to guide the material on the material receiving and conveying unit 501 to the boom conveying unit 502. By arranging the first joint between the material receiving and conveying unit 501 and the boom conveying unit 502, the smooth transfer of the material on the material receiving and conveying unit 501 to the boom conveying unit 502 is further ensured, the spillover of the material is effectively avoided, and the environmental protection effect is enhanced.

[0105] Optionally, the belt conveying system further comprises a material unloading and conveying unit 504, which is directly or indirectly connected with the boom conveying unit 502 and is adapted to convey and unload the material to the outside. It should be noted that the material unloading and conveying unit 504 can be directly connected with the boom conveying unit 502, and the material on the boom conveying unit 502 is directly transferred to the material unloading and conveying unit 504 and then conveyed to the outside; or a transfer structure for transferring the material is arranged between the material unloading and conveying unit 504 and the boom conveying unit 502, and the material on the boom conveying unit 502 is first transferred to the transfer structure and then transferred from the transfer structure to the material unloading and conveying unit 504.

[0106] Optionally, the belt conveying system further comprises a transfer conveying unit 503 arranged between the arm frame conveying unit 502 and the unloading conveying unit 504, and adapted to convey the material guided from the arm frame conveying unit 502 to the unloading conveying unit 504. Optionally, the receiving conveying unit 501, the arm frame conveying unit 502, the transfer conveying unit 503 and the unloading conveying unit 504 are all provided with a conveying belt for conveying the material. Further optionally, the conveying belt is a belt. Optionally, the transfer conveying unit 503 and the unloading conveying unit 504 are both provided with a dust cover outside, for preventing the material from spilling during the conveying process and enhancing the environmental protection performance of the system.

[0107] The belt conveying system of the chain bucket ship unloader provided by the embodiment shortens the length of the unloading conveying unit 504 and increases the stability of operation by arranging the transfer conveying unit 503 between the arm frame conveying unit 502 and the unloading conveying unit 504. The conveying direction of the projection of the unloading conveying unit 504 and the transfer conveying unit 503 on the horizontal plane can be opposite by the cooperation of the transfer conveying unit 503 and the unloading conveying unit 504, i.e. the unloading conveying unit 504 can be arranged directly below the transfer conveying unit 503, thereby avoiding occupying too much space due to the overlong single-stage conveying unit, reducing the slope of the conveying unit and saving the occupied space, so as to reduce the volume of the whole machine and improve the utilization rate of the wharf shoreline.

[0108] Optionally, the arm frame conveying unit 502 is provided with a dust cover 511 outside, which can prevent the material on the arm frame conveying unit 502 from spilling. Further optionally, the dust cover of the arm frame conveying unit 502 is provided with a door curtain 510 near one end close to the receiving conveying unit 501. The material on the arm frame conveying unit 502 enters the dust cover 511 of the arm frame conveying unit 502 through the door curtain 510, thereby further preventing the material from spilling.

[0109] Optionally, the connection between the transfer conveying unit 503 and the arm frame conveying unit 502 and the unloading conveying unit 504 is a movable connection. The relative movement between the transfer conveying unit 503 and the arm frame conveying unit 502 and the unloading conveying unit 504 can be realized by arranging the movable connection between the transfer conveying unit 503 and the arm frame conveying unit 502 and the unloading conveying unit 504, so as to realize the relative movement of the arm frame conveying unit 502 and the unloading conveying unit 504 in the vertical direction, adjust the distance between the arm frame conveying unit 502 and the material to be loaded, and increase the flexibility of the whole machine.

[0110] Optionally, the connection between the transfer conveying unit 503 and the unloading conveying unit 504 is sliding connection.

[0111] Optionally, the chain bucket ship unloader belt conveying system further comprises a third joint 508, which is arranged at the connection between the transfer conveying unit 503 and the unloading conveying unit 504, and has an upper opening and a lower opening. The upper opening of the third joint 508 is connected to one end of the transfer conveying unit 503 close to the unloading conveying unit 504, and the lower end of the third joint 508 is movably arranged on the unloading conveying unit 504. By arranging the third joint 508 at the connection between the transfer conveying unit 503 and the unloading conveying unit 504, the material on the transfer conveying unit 503 can be transferred to the unloading conveying unit 504. By movably arranging the lower end of the third joint 508 on the unloading conveying unit 504, the third joint 508 can move on the unloading conveying unit 504, so as to move the connection position of the transfer conveying unit 503 and the unloading conveying unit 504, and then realize the relative movement of the boom conveying unit 502 and the unloading conveying unit 504 in the vertical direction, so as to adjust the distance between the boom conveying unit 502 and the material to be loaded.

[0112] Optionally, the third joint 508 comprises a funnel 5081 and a sliding block 5082, and the sliding block 5082 is fixedly arranged outside the funnel 5081. The unloading conveying unit 504 is provided with a slide 5083, which is suitable for guiding the movement of the sliding block 5082. By arranging the sliding block 5082 of the third joint 508 to move along the slide 5083 on the unloading conveying unit 504, the movement of the third joint 508 on the unloading conveying unit 504 is realized, which ensures the stability of the movement and improves the reliability of the whole device.

[0113] As an alternative embodiment, the third joint 508 comprises a funnel 5081 and a pulley, and the unloading conveying unit 504 is provided with a track matched with the pulley. The third joint 508 moves along the track through the pulley, so as to realize the movement relative to the unloading conveying unit 504. Or other structures that can realize the movement of the third joint 508 relative to the unloading conveying unit 504.

[0114] Optionally, the connection between the transfer conveying unit 503 and the boom conveying unit 502 is hinged. Through the hinged connection, the transfer conveying unit 503 and the boom conveying unit 502 can rotate relative to the hinge point.

[0115] Optionally, a second joint 507 is arranged at the hinge point between the transfer conveying unit 503 and the boom conveying unit 502, the second joint 507 is open at both ends, and the material conveying on the boom conveying unit 502 is adapted to be transferred to the transfer conveying unit 503 via the second joint 507.

[0116] Optionally, the chain bucket ship unloader belt conveying system further comprises a wharf conveying unit 505 arranged at one end of the unloading conveying unit 504 away from the transfer conveying unit 503 and arranged on the wharf foundation 40, adapted to receive the material conveyed by the unloading conveying unit 504 and convey the material to the wharf foundation 40 or a vehicle or conveying equipment for transporting the material.

[0117] Optionally, a fourth joint 509 is directly arranged between the unloading conveying unit 504 and the wharf conveying unit 505, and the material conveying on the unloading conveying unit 504 is adapted to be transferred to the wharf conveying unit 505 via the fourth joint 509.

[0118] It should be noted that after the material is conveyed to the unloading section 160 via the hopper 111 of the material taking device 100, the material is unloaded from the material taking device 100 and enters the belt conveying system via the material receiving port 1041 for conveying. By arranging the material receiving conveying unit 501, the material discharged from the material receiving port 1041 is stably conveyed to the boom conveying unit 502, avoiding material blockage and spillage during conveying, improving work efficiency and environmental protection effect; the material is sequentially conveyed to the outside via the material receiving conveying unit 501, the boom conveying unit 502, the transfer conveying unit 503, and the unloading conveying unit 504, realizing the unloading of the material; at the same time, by the relative movement between the transfer conveying unit 503 and the boom conveying unit 502 and the unloading conveying unit 504, the relative movement of the boom conveying unit 502 and the unloading conveying unit 504 in the vertical direction is realized, so as to cooperate with adjusting the distance between the unloading device and the material to be loaded, increasing the flexibility of the whole.

[0119] Optionally, the ship unloader further comprises a lifting floating device 300, the lifting floating device 300 comprises:

[0120] a chain bucket boom 104;

[0121] a lifting frame assembly, the lifting frame assembly comprises a fixed frame 303 and a movable frame 305, the fixed frame 303 is fixedly connected with an external structure, the movable frame 305 is directly or indirectly connected with the chain bucket boom 104, and the movable frame 305 is adapted to move in the vertical direction relative to the fixed frame 303 to drive the chain bucket boom 104 to move relative to the external structure.

[0122] By setting the lifting frame assembly to include the movable frame 305 and the fixed frame 303 which can move relatively in the vertical direction, the fixed frame 303 is fixedly connected with the external structure, and the movable frame 305 is fixedly connected with the chain bucket arm 104, so that the chain bucket arm 104 is driven to move relative to the external structure by the movement of the movable frame 305 relative to the fixed frame 303, thereby realizing the height adjustment of the chain bucket arm 104. Compared with the conventional height adjustment by the pitch movement of the chain bucket arm, the lifting floating device provided in the embodiment only needs to adjust the lifting of the movable frame 305 to realize the lifting of the chain bucket arm 104, which is simple in structure, easy to operate, low in energy consumption, and high in adjustment accuracy, and can improve the adjustment accuracy of the chain bucket arm 104 in a small range.

[0123] Optionally, the lifting frame assembly further comprises at least one intermediate support 304, which is arranged between the fixed frame 303 and the movable frame 305 and is in sliding connection with the fixed frame 303 and the movable frame 305, and the movable frame 305 is adapted to drive the intermediate support 304 to move in the vertical direction. It should be noted that the intermediate support 304 can move relatively in the vertical direction with the fixed frame 303 and the movable frame 305, and the movement of the intermediate support 304 is driven by the movement of the movable frame 305. Optionally, the intermediate support 304, the movable frame 305 and the fixed frame 303 are provided with a limiting structure, and further optionally, the limiting structure can be a limiting block. During the upward movement of the movable frame 305, when the limiting block on the movable frame 305 abuts against the limiting block on the intermediate support 304, the movable frame 305 pulls the intermediate support 304 to move upward. The fixed frame 303 is also provided with a limiting block to limit the intermediate support 304 from exceeding the contact range with the fixed frame 303, so as to prevent the intermediate support 304 from being pulled out.

[0124] Specifically, the lifting frame assembly further comprises a first driving unit adapted to drive the movable frame 305 to move in the vertical direction relative to the fixed frame 303. By setting the first driving unit to drive the movable frame 305 to move in the vertical direction relative to the fixed frame 303, the automation degree of the device is increased, and the lifting of the chain bucket arm 104 is facilitated to be controlled and adjusted.

[0125] Specifically, the first driving unit comprises a jacking oil cylinder 307 and a connecting rope 306, one end of the jacking oil cylinder 307 is fixedly connected with the fixed frame 303, the connecting rope 306 is in sliding contact with the top end of the jacking oil cylinder 307, one end of the connecting rope 306 is fixedly connected with the movable frame 305, and the other end of the connecting rope 306 is fixedly connected with the fixed frame 303 after passing around the top end of the jacking oil cylinder 307. Optionally, the connecting rope 306 is a steel wire rope. By arranging the first driving device to comprise the jacking oil cylinder 307 and the connecting rope 306, the jacking oil cylinder 307 and the connecting rope 306 are cooperated to drive the movable frame 305 to move relative to the fixed frame 303. In addition, since the connecting rope 306 has a certain distance from the top end of the jacking oil cylinder 307 and the connecting rope 306 is made of flexible material, when the chain bucket arm 104 is subjected to external jacking force, the movable frame 305 moves upward with the chain bucket arm 104, the connecting end of the connecting rope 306 moves upward with the movable frame 305, and the connecting rope 306 switches from a taut state to a relaxed state, so that the connecting rope 306 will not drive the fixed frame 303 to move upward, that is, the jacking force acting on the chain bucket arm 104 will not be transmitted to the fixed frame 303, thereby avoiding the transmission of the jacking force to the external structure and avoiding the damage to the external structure caused by the rigid connection between the traditional chain bucket arm 104 and the external structure.

[0126] Specifically, the first driving unit further comprises a first pulley 308 arranged at the top end of the jacking oil cylinder 307, and the connecting rope 306 is arranged in the sliding groove of the first pulley 308. It should be noted that the first pulley 308 is fixedly arranged at the top end of the jacking oil cylinder 307 and moves up and down with the top end of the jacking oil cylinder 307, and the connecting rope 306 is arranged in the sliding groove above the first pulley 308 to indirectly realize the sliding contact between the connecting rope 306 and the top end of the jacking oil cylinder 307. When the top end of the jacking oil cylinder 307 rises or falls, the first pulley 308 rises or falls accordingly, thereby driving the contact point between the connecting rope 306 and the first pulley 308 to rise or fall relative to the fixed frame 303.

[0127] Specifically, the chain bucket arm lifting floating device further comprises a buffer assembly in sliding connection with the connecting rope 306 and adapted to provide tension to the connecting rope 306. By providing tension to the connecting rope 306 through the buffer assembly, it is ensured that the connecting rope 306 can be tightened again after being in a relaxed state due to the movement of the movable frame 305, so as to prevent the connecting rope 306 from being pulled out of the sliding groove of the pulley, thereby ensuring the reliability of the device.

[0128] Specifically, the buffering assembly comprises a second driving unit and a third pulley 311, the second driving unit comprises a damping oil cylinder 309 and a second pulley 310 arranged at the top end of the damping oil cylinder 309, one end of the damping oil cylinder 309 away from the second pulley 310 is fixedly connected with the fixed frame 303, the third pulley 311 is fixedly connected with the fixed frame 303, and the connecting rope 306 is sequentially wound around the lower side of the second pulley 310, the upper side of the third pulley 311 and then connected with the fixed frame 303. The third pulley 311 plays a role in redirecting the connecting rope 306, and the connecting rope 306 can be connected with the bottom end of the fixed frame 303 after being sequentially wound around the lower side of the second pulley 310 and the upper side of the third pulley 311, wherein the bottom end of the fixed frame 303 refers to one end of the fixed frame 303 away from the movable frame 305. By arranging the lifting frame assembly to further comprise at least one intermediate support 304 arranged between the fixed frame 303 and the movable frame 305, the lifting range of the lifting frame assembly is increased, and the size of the fixed frame 303 and the movable frame 305 in the vertical direction can be shortened, thereby enhancing the stability and reliability of the structure.

[0129] It should be noted that when the ship rises and falls with the waves, the bottom of the ship cabin may collide with the bottom of the chain bucket arm 104, and the chain bucket arm 104 is subjected to the jacking force applied by the bottom of the ship cabin. The traditional chain bucket arm and the structure of the ship unloader are rigidly connected, so the chain bucket arm 104 will transmit the jacking force to the ship unloader structure. Once the bearing capacity of the ship unloader structure is exceeded, the ship unloader structure will be permanently damaged. Therefore, the traditional chain bucket ship unloader can usually only be used in ports with small waves or inland ports, and its use and promotion are limited. When the chain bucket arm lifting and floating device of the present embodiment is applied to the chain bucket ship unloader, the retracting force of the damping oil cylinder 309 of the buffer assembly is balanced with the pulling force provided by the connecting rope 306 to the damping oil cylinder 309 when the chain bucket arm 104 is in a balanced state without external force. When the connecting rope 306 is in a relaxed state due to the upward jacking force on the chain bucket arm 104, the upward pulling force on the damping oil cylinder 309 from the connecting rope 306 decreases, and the damping oil cylinder 309 responds accordingly. The damping oil cylinder 309 retracts, and the second pulley 310 at the top end of the damping oil cylinder 309 descends, thereby tensioning the relaxed connecting rope 306. In this way, when the jacked chain bucket arm 104 falls again, the connecting rope 306 can also pull the chain bucket arm 104 by holding the movable frame 305, avoiding damage to the fixed frame 303 caused by the rapid descent of the chain bucket arm 104. At the same time, when the connecting rope 306 is in a relaxed state, the jacking oil cylinder 307 is subjected to a reduced pressure from the steel wire rope, and the jacking oil cylinder 307 responds accordingly. The top end of the jacking oil cylinder 307 drives the first pulley 308 to rise, thereby supporting the connecting rope 306, so as to ensure that the jacking oil cylinder 307 can provide sufficient support force when the chain bucket arm 104 falls. Under the action of the buffer assembly and the first driving unit, the connecting rope 306 switches from a relaxed state to a tensioned state, and the connecting rope 306 presses the first pulley 308 at the top end of the jacking oil cylinder 307, so as to press the jacking oil cylinder 307 back to the position before the chain bucket arm 104 moves due to the jacking force. Similarly, the damping oil cylinder 309 returns to the position before the chain bucket arm 104 moves due to the jacking force. Both the jacking oil cylinder 307 and the damping oil cylinder 309 can realize vertical extension and retraction. The stroke of the jacking oil cylinder 307 is relatively long, and the response speed is relatively slow. The stroke of the damping oil cylinder 309 is relatively short, and the response speed is relatively fast.

[0130] The chain bucket arm lifting floating device provided by the embodiment is connected with the connecting rope 306 through the buffer assembly, when the connecting rope 306 is in a slack state due to the upward jacking force of the chain bucket arm 104, the damping oil cylinder 309 of the buffer assembly responds, the damping oil cylinder 309 contracts, thereby tensioning the slack connecting rope 306, and when the rising chain bucket arm 104 falls again, under the action of the tension of the connecting rope 306, the support force of the jacking oil cylinder 307 and the buffer assembly, the movable frame 305 and the chain bucket arm 104 can slowly fall, avoiding impact and damage to the external structure connected with the fixed frame 303.

[0131] Optionally, the lifting floating device 300 further comprises a connecting beam 301, the connecting beam 301 is rotatably connected with the chain bucket arm 104 at the middle of the length direction of the connecting beam 301, and the number of the lifting frame assemblies is two, and the two lifting frame assemblies are arranged at two ends of the connecting beam 301. Further optionally, the connecting mode of the connecting beam 301 and the chain bucket arm 104 is hinged. When the surging force in the length direction of the connecting beam 301 acts on the chain bucket arm 104, the impact of the surging on the chain bucket arm 104 is converted into the rotation of the chain bucket arm 104 around the hinge point 302, avoiding that the surging force directly acts on the lifting frame assembly, and further preventing the surging force from being transmitted to the structure of the ship unloader connected with the fixed frame 303, thereby protecting the safety of the structure of the chain bucket ship unloader.

[0132] Optionally, the ship unloader further comprises a frame body 10, the frame body 10 is connected with a wharf foundation 40 through a door leg 11, and optionally, the wharf foundation 40 is provided with a track, and the door leg 11 can move along the track to drive the frame body 10 to move along the track; the frame body 10 comprises a main beam 12, the main beam 12 comprises an arm frame 601 extending out of the door leg 11, a running trolley 13 is arranged on the arm frame 601, the lifting floating device 300 is fixedly connected with the running trolley 13 through the fixed frame 303, and the running trolley 13 is suitable for moving along the arm frame 601 to drive the chain bucket arm 104 to move along the arm frame 601 to the upper side of the ship cabin 20, so as to unload the materials 30 in the ship cabin 20.

[0133] Figure 3 As shown, two groups of material taking units are connected on the connecting beam 301, and the chain bucket arms 104 of the two groups of material taking units are respectively connected with the connecting beam 301 through a hinge point 302, so that the relative rotation of the material taking unit and the connecting beam 301 is realized.

[0134] It should be noted that the above description is only a specific implementation of the chain bucket ship unloader, and the chain bucket ship unloader is not limited to the above description. Figure 3As shown, the rotary shaft 103 is disposed along the connecting beam 301. Figure 3 Above the "vertical direction" indicated by the middle arrow ( Figure 3 (The rotating shaft 103 is not shown in the diagram). In one embodiment, two connecting rods are also provided between the rotating shaft 103 and the connecting beam 301. The rotating shaft 103 is connected to the connecting beam 301 through the two connecting rods. The rotating shaft 103, the connecting beam 301, and the two connecting rods are all hinged, thus forming a linkage mechanism that enables relative movement between the rotating shaft 103 and the connecting beam 301. Therefore, the chain bucket arm 104 can move along... Figure 2 The swaying in the width direction of the ship can also achieve the following along the direction of the ship's width. Figure 3 The swaying of the ship in the direction of the middle length.

[0135] In existing chain bucket unloaders, the material handling arm is rigidly connected to the unloader. When a ship is subjected to a surge, the ship pitches up and down, and the rigidly connected chain bucket arm will transmit this impact to the main structure of the unloader, affecting the safety of the overall structure. To address the problem that rigidly connected chain bucket arms in existing technologies are prone to impact from materials during ship movement, this embodiment provides a swing-type material handling assembly, comprising: a material handling device 100 adapted to scoop up material 30; a rotating shaft 103 hingedly connected to the material handling device 100, the material handling device 100 adapted to swing around the rotating shaft 103; and a swing mechanism 200 flexibly connected to the traction hinge point 206 of the material handling device 100. The swing mechanism 200 is adapted to traction the material handling device 100 so that the material handling device 100 is maintained in a first preset position when not subjected to external force. In the first preset position, the vertical line passing through the center of gravity of the material handling device 100 is spaced apart from the axis of the rotating shaft 103, and the torque of the material handling device under gravity causes the material handling device to tend to move towards the land side.

[0136] Specifically, the swing mechanism 200 includes: a swing mechanism tensioning cylinder 201; a swing mechanism traction rope 202, one end of which is connected to the traction hinge point 206, and the other end of which is connected to the swing mechanism tensioning cylinder 201; the swing mechanism tensioning cylinder 201 is adapted to facilitate the material taking device 100 to move towards the land side when it extends, and to drive the material taking device 100 to move towards the sea side when it retracts.

[0137] One end of the wire rope is connected to the tensioning cylinder 201 of the swing mechanism, passes over the fixed pulley block connected to the end of the damping cylinder, and the other end is connected to the traction hinge point 206 at the lower part of the material handling device 100. The extension and retraction of the tensioning cylinder drives the wire rope to move, thereby pulling the swing of the material handling device 100.

[0138] Preferably, the swing mechanism tension cylinder 201 is adapted to actively adjust the angle of the material taking device 100 as required. Preferably, when the material taking device 100 is subjected to external force, the swing mechanism tension cylinder 201 does not extend or contract passively.

[0139] Optionally, the material taking device 100 is installed on the main beam 12. In particular, the material taking device 100 is hingedly connected to the main beam 12 through a rotating shaft 103, so that the material taking device 100 can swing relative to the main beam 12 about the rotating shaft 103. In combination with the Figure 14 As shown, the upper part of the material taking device 100 is hingedly connected to the rotating shaft 103, so that the material taking device 100 is adapted to swing about the rotating shaft 103. The middle or lower-middle part of the material taking device 100 is provided with a traction hinge point 206, and the swing mechanism 200 is flexibly connected to the traction hinge point 206. In particular, the swing mechanism traction rope 202 can be connected to the traction hinge point 206, so that the material taking device 100 can be maintained in a first preset position when not subjected to external force. When in the first preset position, a vertical line passing through the center of gravity of the material taking device 100 is spaced apart from the axis of the rotating shaft 103, and the moment of the material taking device under the action of gravity makes the material taking device have a tendency to move towards the land side. The material taking device has a tendency to move around the rotating shaft 103 and towards the land side under its own gravity.

[0140] It should be noted that the vertical line passing through the center of gravity of the material taking device is spaced apart from the axis of the rotating shaft 103, which means that the vertical line passing through the center of gravity of the material taking device does not pass through the axis of the rotating shaft 103, i.e. the axis of the rotating shaft 103 and the center of gravity of the material taking device are not on the same vertical line.

[0141] The swing mechanism 200 provides traction to the material taking device 100, so that the material taking device 100 can be maintained in a first preset position when not subjected to external force. In this position, there will always be a moment towards the land side, which is balanced by the pulling force of the swing mechanism 200. When the material taking device 100 moves from the sea side to the land side, the self-weight of the material taking device 100, which weighs tens of tons, can always push the material taking device 100 towards the front end of the movement direction, facilitating the front digging of the material by the hopper. Even if the material taking encounters certain resistance, it can still overcome it. When the material taking device 100 moves from the land side to the sea side, the pulling force of the traction steel wire rope can always keep the posture of the material taking device 100 stable.

[0142] When the ship cabin suddenly encounters a surge, in the ship width direction, if the surge exerts a force on the ship and the material taking device 100 towards the sea side, the material taking device 100 will have a tendency to swing clockwise, at this time, the force of the surge applied to the material taking device 100 will only reduce the tension of the steel wire rope, if the size of the moment of the force of the surge on the rotating shaft 103 exceeds the size of the moment of the force of gravity on the rotating shaft 103, the material taking device 100 will slightly swing clockwise, and the force of the surge will be converted into a swing, so as to avoid transmitting the force to the ship unloader structure. If the force of the surge on the ship and the material taking device 100 is towards the land side, the material taking device 100 will suddenly be subjected to the force of the surge, and the tension of the steel wire rope will rapidly increase, at this time, the force on the pulley at the end of the damping oil cylinder will also rapidly increase, when it exceeds the threshold value, the damping oil cylinder is released, the length of the steel wire rope increases, and the material taking device 100 swings counterclockwise to reach a new balance state. The force of the surge applied to the material taking device 100 is converted into the swing of the material taking device 100, and will not act on the structure of the chain bucket ship unloader, thereby ensuring the safety of the structure under the surge.

[0143] The swing material taking assembly provided by the embodiment is pulled by the swing mechanism 200, so that the material taking device 100 is maintained at a first preset position when not subjected to external force; and when at the first preset position, a vertical line passing through the gravity center of the material taking device 100 is arranged to be spaced apart from the axis of the rotating shaft 103, and the moment of force of the material taking device under the action of gravity makes the material taking device have a tendency to move towards the land side; so that the material taking device can utilize the moment of force generated by its own gravity to assist material taking, while avoiding the impact of the material moving with the ship under the action of the surge on the material taking arm, and avoiding transmitting the impact force to the structure of the ship unloader, thereby ensuring the safety and reliability of the structure.

[0144] Optionally, the swing mechanism tensioning oil cylinder 201 is fixed to the running trolley 13.

[0145] Specifically, the swing mechanism 200 further comprises a swing mechanism traction rope 202, one end of which is connected with the traction hinge point 206, and the other end of which is connected with the swing mechanism tensioning oil cylinder 201.

[0146] The swing mechanism tensioning oil cylinder 201 is adapted to be elongated when the material taking device 100 is subjected to a moment of force towards the land side, and is adapted to be contracted when the material taking device 100 is subjected to a moment of force towards the sea side.

[0147] The swing mechanism redirecting pulley 203 is arranged between the swing mechanism tensioning oil cylinder 201 and the traction hinge point 206, and is in sliding contact with the swing mechanism traction rope 202.

[0148] Specifically, the swing mechanism 200 further comprises:

[0149] A swing mechanism damping oil cylinder 204 is fixed to the running trolley 13;

[0150] A damping pulley 205 is connected to the free end of the swing mechanism damping oil cylinder 204 and in sliding contact with the swing mechanism traction rope 202;

[0151] The damping pulley 205 is arranged between the swing mechanism redirecting pulley 203 and the traction hinge point 206.

[0152] The swing mechanism damping oil cylinder 204 is adapted to extend when the material taking device 100 is subjected to a torque in the direction of the land side greater than a preset threshold value, and to contract when the material taking device 100 is subjected to a torque in the direction of the sea side.

[0153] Preferably, the swing mechanism damping oil cylinder 204 can follow the extension amount according to the external force bearing condition of the material taking device 100, and further adjust the angle of the material taking device 100. If the material taking device 100 is subjected to a torque in the direction of the land side, the material taking device 100 pulls the swing mechanism traction rope 202, and if the force of the swing mechanism traction rope 202 is greater than the preset threshold value of the swing mechanism damping oil cylinder 204, the swing mechanism damping oil cylinder 204 extends. If the material taking device 100 is subjected to a torque in the direction of the sea side, the material taking device 100 reduces the force acting on the swing mechanism traction rope 202, so that the damping oil cylinder contracts.

[0154] When a surge occurs, the swing mechanism damping oil cylinder 204 extends or contracts according to the direction of the force, and when the surge ends, the force of the swing mechanism traction rope 202 returns to the state before the surge, and the extension amount of the swing mechanism damping oil cylinder 204 returns to the state before the surge, and the angle of the material taking device 100 also returns to the state before the surge.

[0155] The swing material taking assembly provided by the embodiment can automatically adjust the length of the swing mechanism traction rope 202 according to the force bearing condition of the material taking device 100 by arranging the swing mechanism damping oil cylinder 204 and extending when the material taking device 100 is subjected to a torque in the direction of the land side and contracting when the material taking device 100 is subjected to a torque in the direction of the sea side, which facilitates the material taking device 100 to quickly reach a new equilibrium state after being subjected to a force, ensures that the force exerted on the material taking device 100 during a surge is converted into a swing action of the material taking device 100, and does not act on the structure of the chain bucket ship unloader, thereby ensuring the safety of the structure under a surge.

[0156] Specifically, the swing mechanism tensioning oil cylinder 201 is adapted to extend and retract in the horizontal direction.

[0157] Specifically, the swing mechanism damping oil cylinder 204 is adapted to extend and retract in the horizontal direction.

[0158] Optionally, the stroke of the tensioning cylinder of the swing mechanism is greater than the stroke of the damping cylinder of the swing mechanism.

[0159] Preferably, the force threshold of the tensioning cylinder 201 of the swing mechanism is greater than the force threshold of the damping cylinder 204 of the swing mechanism, so that the response of the tensioning cylinder 201 of the swing mechanism under force is slower than the response of the damping cylinder 204 of the swing mechanism.

[0160] The tensioning cylinder 201 of the swing mechanism has a large stroke and a slow response; the damping cylinder 204 of the swing mechanism has a small stroke and a fast response.

[0161] Specifically, the tensioning cylinder 201 of the swing mechanism contracts to increase the angle between the axis of the material taking device 100 along its length and the vertical direction;

[0162] The extension of the tensioning cylinder 201 of the swing mechanism is adapted to reduce the angle between the axis of the material taking device 100 along its length direction and the vertical direction.

[0163] Since there is a cofferdam at the hatch of the ship's hold, the material located below the cofferdam is difficult to remove when the material handling device 100 is in its normal operating position. Therefore, the swing material handling component provided in this embodiment can also drive the material handling device 100 to adjust its angle as needed.

[0164] Combination Figure 15 As shown, under normal operating conditions, the material handling device 100 is in the first swing state 210. When the material handling device needs to be adjusted from the first swing state 210 to the second swing state 220, the tension cylinder 201 of the swing mechanism extends, and the material handling device 100 can be adjusted to the second swing state 220 under the action of gravity torque. When it needs to be adjusted from the first swing state 210 to the third swing state 230, the tension cylinder 201 of the swing mechanism retracts, and the wire rope pulls the material handling device 100 to adjust to the third swing state 230. By adjusting different postures, it is convenient to empty the material from the corners of the hold, reducing the amount of material to be emptied.

[0165] The swing-type material-collecting assembly provided in this embodiment can drive the material-collecting device to swing slightly around the rotating shaft 103 by extending and retracting the tension cylinder 201 of the swing mechanism. This changes the angle between the axis of the material-collecting device 100 along its length and the vertical direction, adjusting the posture of the material-collecting device so that it swings to a certain angle, facilitating entry into corners of the compartment to collect materials. This reduces the amount of material to be cleaned and improves actual usage efficiency.

[0166] Obviously, the above embodiments are merely example for clearly illustrating but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and can not be enumerated. The obvious changes or variations derived from the above description are still within the protection scope of the present application.

Claims

1. A material taking device characterized by comprising: Comprising: a rotating shaft (103); at least two groups of material taking units are arranged at intervals on the rotating shaft (103), each group of the material taking units comprises a chain bucket arm (104) and a bucket chain (110), the chain bucket arm (104) is rotatably connected with the rotating shaft (103); the bucket chain (110) is formed by sequentially connecting a plurality of buckets (111) end to end, and the bucket chain (110) is arranged around the outer circumferential side of the chain bucket arm (104); a driving unit adapted to drive the bucket chain (110) to operate relative to the chain bucket arm (104); the chain bucket arm (104) is the main structure of the material taking device and extends in the length direction; the chain bucket arm (104) is hingedly connected with the rotating shaft (103), and the rotating shaft (103) can rotate relative to the chain bucket arm (104); a driving sprocket is arranged on the rotating shaft (103) and coaxially arranged with the rotating shaft (103), the outer circumferential side of the driving sprocket is in close contact with the bucket chain (110), and the driving unit is adapted to drive the bucket chain (110) to operate through the driving sprocket; two adjacent buckets (111) of the bucket chain (110) are connected by a connecting plate (112), and the bucket back plate (113) of the bucket (111) is in close contact with the outer circumferential side of the driving sprocket.

2. The material taking device according to claim 1, characterized in that The number of driving sprockets is at least 2N, and at least 2N driving sprockets are arranged at intervals along the axis direction of the rotating shaft (103), wherein N is equal to the number of material taking units, and the bucket chain (110) of each group of material taking units is connected with two adjacent driving sprockets.

3. The material taking-out device according to claim 2, characterized by The number of material taking units is two groups, and the number of driving sprockets is four.

4. The material taking-out device according to claim 2, characterized by At least 2N driving sprockets are coaxially arranged and driven by the same driving unit.

5. The material taking-out device according to claim 1, characterized by Each group of material taking units further comprises two tension sprockets (108) arranged at one end away from the driving sprocket along the length direction of the chain bucket arm (104), the two tension sprockets (108) are adapted to stretch the bucket chain (110) and form at least a part of the bucket chain (110) into a material taking section (150) adapted to contact with the material (30); the end of the material taking section (150) and the driving sprocket form a lifting section (120) adapted to lift the material (30).

6. The material taking-out device according to claim 5, characterized by After the bucket chain (110) passes the driving sprocket from the end of the lifting section (120), the orientation of the opening of the bucket (111) is changed and the unloading is completed.

7. The material taking-out device according to claim 6, characterized by Each group of material taking units further comprises: a first redirecting sprocket (1051) arranged between the driving sprocket and the first end of the material taking section (150), the bucket chain (110) forms a first descending section (130) between the driving sprocket and the first redirecting sprocket (1051), and forms a second descending section (140) between the first redirecting sprocket (1051) and the first end of the material taking section (150), the second descending section (140) is arranged at an angle with the first descending section (130); A second diverting sprocket (1052) is provided between the drive sprocket and the first diverting sprocket (1051), and the hopper chain (110) forms a discharge section (160) between the drive sprocket and the second diverting sprocket (1052).

8. An unloader characterized by Comprising: The material taking device (100) according to any one of claims 1-7.

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