Crossing double grab ship unloader

Abstract

The application provides a cross-type double grab bucket ship unloader, which comprises a ship unloader body, a supporting track frame, a grab bucket unit and a driving control unit, the grab bucket unit comprises a first grab bucket and a second grab bucket, a lifting assembly is transmissionally connected above the first grab bucket and the second grab bucket, the lifting assembly at the first grab bucket is connected with the bottom of a first driving sliding block, the top of the lifting assembly is respectively connected with the bottom of two hollow frames, and the two hollow frames are connected with the bottom of a deviation preventing sliding block. The driving control unit can drive the first grab bucket and the second grab bucket to run respectively, and the first grab bucket can pass through between the hollow frames when running, so that the first grab bucket and the second grab bucket do not affect each other when running. The design of the first grab bucket and the second grab bucket enables the ship unloader to simultaneously load and unload, thereby reducing the time for loading and unloading materials of the ship unloader, improving the working efficiency of the ship unloader, improving the efficiency of ship unloading and reducing the time cost of ship unloading.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ship unloaders, in particular to a through-type double grab bucket ship unloader. BACKGROUND

[0002] The ship unloader is a key equipment in the logistics hub of the port, wharf and the like for efficiently unloading the cargo on the ship, which can quickly and continuously unload the bulk cargo such as coal, ore and grain or the piece cargo such as containers and steel on the ship to the transport tools such as trucks and trains or the storage area. The ship unloader is a special machine that uses a continuous conveying machine to make a machine head capable of lifting bulk materials, or has self-retrieval capability, or is equipped with a retrieval and feeding device, which continuously takes out the bulk materials from the ship cabin and then unloads them to the boom or rack and can be transported to the main conveying system on the shore.

[0003] The ship unloader is generally equipped with a grab bucket for grabbing the materials on the ship. In the Chinese patent "Publication No. CN208617228, Name: A ship unloader and ship unloading system", the grab bucket and the large arm are relatively movable, the large arm includes a first large arm and a second large arm, the first large arm and the second large arm are rotationally connected and the first large arm is fixedly connected with the support, the large arm is provided with a first pitch point and a second pitch point, when at the first pitch point, the grab bucket is placed on the hopper, when at the second pitch point, the grab bucket is placed on a plane parallel to the bottom of the large arm, when maintenance is needed, the grab bucket can be placed at the second pitch point, so that the grab bucket is placed on the plane parallel to the bottom of the large arm, i.e. on the bottom surface close to the land side, so that the workers can perform maintenance without wasting waiting time. However, in the above-mentioned application and the prior art, the loading and unloading of materials are realized by a single grab bucket. Since the distance between the ship and the shore of the wharf is far, the travel distance of the grab bucket is long, so that the time for the single grab bucket to load and unload the materials is long, which affects the working efficiency of the ship unloader. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the low working efficiency of the ship unloader in the prior art, and to provide a through-type double grab bucket ship unloader.

[0005] The present application solves the above technical problems by the following technical solutions:

[0006] The present application provides a through-type double grab bucket ship unloader, which comprises a ship unloader main body, the ship unloader main body is fixedly installed on the land of the wharf,

[0007] a support rail frame, the support rail frame is connected with the ship unloader main body on the side;

[0008] The grab bucket unit is arranged below the support rail frame, and the grab bucket unit is in transmission connection with the control unit, the control unit is installed at the support rail frame, and the control unit is used for controlling the movement of the grab bucket unit, and the grab bucket unit is used for grabbing materials;

[0009] The grab bucket unit comprises a first grab bucket and a second grab bucket, and lifting assemblies are in transmission connection above the first grab bucket and the second grab bucket.

[0010] The control unit comprises a first control mechanism and a second control mechanism, the first control mechanism is in transmission connection with the first driving sliding block, and the second control mechanism is in transmission connection with the second driving sliding block.

[0011] In the technical solution, the first grab bucket and the second grab bucket can be driven to run by the first control mechanism and the second control mechanism respectively, and the first grab bucket can pass between the hollow frames when running, so that the first grab bucket and the second grab bucket do not affect each other when running.

[0012] Preferably, the support rail frame comprises two symmetrically distributed outer rail columns, two symmetrically distributed inner rail columns are arranged between the two outer rail columns, and a plurality of transverse connecting strip columns are connected between the outer rail columns and the inner rail columns.

[0013] The top of each of the plurality of transverse connecting strip columns is connected with a longitudinal connecting strip column, and the top end of each of the plurality of longitudinal connecting strip columns is connected with the bottom of the two upper rail columns.

[0014] In the technical solution, the support rail frame can support the first grab bucket, the second grab bucket and other structures.

[0015] Preferably, the two ends of the first driving sliding block are in sliding connection with the surfaces of the two inner rail columns respectively.

[0016] A plurality of first rollers are rotatably connected to the inner side of the first driving sliding block, and the side surface of the first roller is in contact with the inner rail column.

[0017] In the technical solution, the first driving sliding block can be more stable and smooth when moving through the first rollers.

[0018] Preferably, the second driving sliding block is connected with anti-deviation sliding blocks on both sides, and the two anti-deviation sliding blocks are respectively in sliding connection with the surfaces of the two outer track columns.

[0019] The anti-deviation sliding block is rotatably connected with a plurality of second rollers on the inner side, and the side surfaces of the second rollers are in contact with the outer track columns.

[0020] In the technical solution, the second rollers can make the anti-deviation sliding block and the second driving sliding block move more smoothly and stably.

[0021] Preferably, the lifting assembly comprises a connecting frame, and the bottom of the first driving sliding block and the bottom of the anti-deviation sliding block are connected with the connecting frame.

[0022] The inner side of the connecting frame is provided with a retractable shaft, and the two ends of the retractable shaft are rotatably penetrated into the connecting frame.

[0023] One end of the retractable shaft is connected with the output end of a retractable driving source, and the retractable driving source is fixedly installed on the outer side of the connecting frame.

[0024] The surface of the retractable shaft is connected with the upper end of a lifting steel cable, the lower end of the lifting steel cable is connected with the top of a connecting plate, and the upper ends of the first grab bucket and the second grab bucket are movably connected with the bottoms of the two connecting plates.

[0025] In the technical solution, the lifting assembly can adjust the heights of the first grab bucket and the second grab bucket respectively, so as to realize the grabbing and unloading of the materials on the ship.

[0026] Preferably, the first driving control mechanism is installed at a position between the two inner track columns, the second driving control mechanism is installed at a position between the two upper track columns, the first driving control mechanism and the second driving control mechanism each comprise a moving assembly and a power assembly, and one end of the moving assembly is in transmission connection with the power assembly.

[0027] The moving assembly comprises a left rotating shaft and a right rotating shaft, the left rotating shaft and the right rotating shaft are arranged in a left-right manner, and one end of each of the left rotating shaft and the right rotating shaft is in transmission connection with the power assembly.

[0028] The side surface of the left rotating shaft is connected with one end of a left driving steel cable, the side surface of the right rotating shaft is connected with one end of a right driving steel cable, and the left and right sides of the first driving sliding block and the left and right sides of the second driving sliding block are respectively connected with one end of the left driving steel cable and one end of the right driving steel cable.

[0029] In the technical solution, the first driving control mechanism drives the first grab bucket to move, and the second driving control mechanism drives the second grab bucket to operate.

[0030] Preferably, the power assembly comprises a power source, an output end of the power source is connected with a driving gear, the driving gear is connected with a driven gear on the side surface, one end of the left rotating shaft and the right rotating shaft is connected with the driven gear, and the other end of the left rotating shaft and the right rotating shaft is rotatably connected with the support rail frame.

[0031] In the technical solution, the power assembly provides driving force for the moving assembly.

[0032] Preferably, the driving gear and the driven gear are provided with a protective shell on the outer side, one side of the protective shell is connected with the support rail frame, and a power source is installed on the inner wall of the protective shell.

[0033] A preset hole is formed on one side of the protective shell, and one end of the left rotating shaft and the right rotating shaft is rotatably penetrated and connected with one side of the protective shell through the preset hole.

[0034] In the technical solution, the protective shell is used to protect the driving gear and the driven gear.

[0035] Preferably, one end of the left driving steel cable and the right driving steel cable away from the first driving sliding block and the second driving sliding block is provided with a guide assembly, the guide assembly comprises two first guide shafts and two second guide shafts, and the first guide shafts and the second guide shafts are distributed left and right.

[0036] The two first guide shafts are symmetrically distributed front and back, and the two second guide shafts are symmetrically distributed up and down.

[0037] The left driving steel cable and the right driving steel cable pass through between the two first guide shafts and the two second guide shafts.

[0038] In the technical solution, the guide assembly is used to guide the left driving steel cable and the right driving steel cable, so that the left rotating shaft and the right rotating shaft can wind the left driving steel cable and the right driving steel cable.

[0039] Preferably, the two ends of the first guide shaft and the two ends of the second guide shaft are rotatably connected with the inner walls of the fixed frames, two adjacent fixed frames are connected through mounting strip columns, and one side of the fixed frames located on both sides is connected with the support rail frame through the mounting strip columns.

[0040] In the technical solution, the fixed frames and the mounting strip columns are used to support the first guide shaft and the second guide shaft.

[0041] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, the preferred examples of the present application are obtained.

[0042] The positive progress effect of the present application is that:

[0043] The present invention can drive the first grab bucket and the second grab bucket to operate through the first drive control mechanism and the second drive control mechanism respectively. During operation, the first grab bucket can pass through the hollow frame, so that the operation of the first grab bucket and the second grab bucket does not affect each other. The design of the first grab bucket and the second grab bucket allows the ship unloader to load and unload materials simultaneously, thereby reducing the time of loading and unloading materials, improving the working efficiency of the ship unloader, thereby improving the efficiency of ship unloading and reducing the time cost of ship unloading.

[0044] Furthermore, the guide assembly can guide the left and right drive cables, making the left and right rotating shafts more stable when winding around the left and right drive cables, thus making the first and second drive sliders move more smoothly, and consequently making the first and second grabs run more stably and smoothly. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of the through-type double grab bucket ship unloader according to an embodiment of the present invention.

[0046] Figure 2 for Figure 1 The diagram shows the three-dimensional structure of the fixed track frame, grab unit, and drive control unit of the through-type double grab unloader. Figure 1 .

[0047] Figure 3 for Figure 1 The diagram shows the three-dimensional structure of the fixed track frame, grab unit, and drive control unit of the through-type double grab unloader. Figure 2 .

[0048] Figure 4 for Figure 2 The diagram shows a cross-sectional view of the second drive slider of the through-type double grab unloader.

[0049] Figure 5 for Figure 2 The diagram shows a cross-sectional view of the first drive slider of the through-type double grab unloader.

[0050] Figure 6 for Figure 2 The diagram shows a three-dimensional structure of the drive and control unit, hollow frame, anti-deviation slider, and second drive slider of the through-type double grab bucket ship unloader.

[0051] Figure 7 for Figure 2 The diagram shows a three-dimensional structure of the drive and control unit and the first drive slider of the through-type double grab bucket ship unloader.

[0052] Figure 8 for Figure 6 The diagram shows the guide assembly and left drive cable three-dimensional structure of the through-type double grab bucket ship unloader.

[0053] Figure 9 For Figure 8 The first guide shaft, the second guide shaft and the left drive cable of the cross-type double grab bucket unloader are shown in the perspective structural diagram.

[0054] Figure 10 For Figure 2 The first grab bucket and the lifting assembly of the cross-type double grab bucket unloader are shown in the perspective structural diagram Figure 1 .

[0055] Figure 11 For Figure 2 The first grab bucket and the lifting assembly of the cross-type double grab bucket unloader are shown in the perspective structural diagram Figure 2 .

[0056] BRIEF DESCRIPTION OF DRAWINGS

[0057] 1, the main body of the unloader;

[0058] 2, the support rail frame; 21, the outer rail column; 22, the inner rail column; 23, the transverse connecting strip column; 24, the longitudinal connecting strip column; 25, the upper rail column;

[0059] 3, the first grab bucket;

[0060] 4, the second grab bucket;

[0061] 5, the lifting assembly; 51, the connecting frame; 52, the retractable shaft; 53, the retractable drive source; 54, the lifting cable; 55, the connecting plate;

[0062] 6, the first drive sliding block;

[0063] 7, the hollow frame;

[0064] 8, the anti-deviation sliding block;

[0065] 9, the second drive sliding block;

[0066] 10, the first roller;

[0067] 11, the second roller;

[0068] 12, the moving assembly; 121, the left rotating shaft; 122, the right rotating shaft; 123, the left drive cable; 124, the right drive cable;

[0069] 13, the power assembly; 131, the power source; 132, the driving gear; 133, the driven gear; 134, the protective shell;

[0070] 14, the guide assembly; 141, the first guide shaft; 142, the second guide shaft; 143, the fixed frame; 144, the mounting strip column;

[0071] 15. A fixed track. DETAILED DESCRIPTION

[0072] The present application will be further described by way of examples without thereby limiting the present application to the examples described.

[0073] Figures 1 to 11 The structure schematic diagram of the embodiment of the present application is shown.

[0074] Embodiment one

[0075] As shown in the drawings, Figures 1 to 7 , Figures 10 to 11 The through-type double grab bucket ship unloader comprises a ship unloader body 1, which is fixedly installed on the land of the wharf,

[0076] a support track frame 2, which is connected with the ship unloader body 1 on the side surface;

[0077] a grab bucket unit and a control unit, the grab bucket unit is arranged below the support track frame 2, the grab bucket unit is in transmission connection with the control unit, the control unit is installed at the support track frame 2, the control unit is used for controlling the movement of the grab bucket unit, and the grab bucket unit is used for grabbing materials;

[0078] The grab bucket unit comprises a first grab bucket 3 and a second grab bucket 4, the lifting assembly 5 is in transmission connection above the first grab bucket 3 and the second grab bucket 4, the lifting assembly 5 at the first grab bucket 3 is connected with the bottom of the first driving sliding block 6, the lifting assembly 5 is respectively connected with the bottoms of two hollow frames 7, the two hollow frames 7 are respectively connected with the bottoms of the anti-deviation sliding blocks 8, and the first driving sliding block 6, the anti-deviation sliding blocks 8 and the second driving sliding block 9 are in sliding connection with the support track frame 2.

[0079] The cross section of the hollow frame 7 is in U-shaped structure, the anti-deviation sliding blocks 8 are respectively connected with the inner walls on the two sides of the hollow frame 7, and the hollow frame 7 is connected with a plurality of reinforcing ribs on the inner walls on the two sides.

[0080] The first grab bucket 3 and the second grab bucket 4 are composed of two or more pieces of openable and closable bucket-shaped jaw plates and form a material containing space, the jaw plates are closed in the material pile during loading, the materials are grabbed into the material containing space, the jaw plates are opened in the suspended state on the material pile during unloading, and the materials are scattered on the material pile.

[0081] The power for driving the jaw plates to operate is mechanical driving, hydraulic driving, electric pushing and the like.

[0082] The mechanical driving can realize the opening and closing actions by adopting a mechanical structure such as a steel wire rope, a pulley block and a winch.

[0083] Hydraulic drive provides high pressure oil through hydraulic pump, drives hydraulic cylinder or hydraulic motor to realize opening and closing and rotating action;

[0084] Electric drive drives the reducer or gear box through the motor, and drives the jaw plate to realize opening and closing action.

[0085] The drive unit comprises a first drive mechanism and a second drive mechanism, the first drive mechanism is in transmission connection with the first drive slider 6, and the second drive mechanism is in transmission connection with the second drive slider 9.

[0086] In the technical scheme, the first grab bucket 3 can pass between the hollow frames 7 when the first grab bucket 3 and the second grab bucket 4 are driven to run by the first drive mechanism and the second drive mechanism respectively, so that the first grab bucket 3 and the second grab bucket 4 do not affect each other when running, and the design of the first grab bucket 3 and the second grab bucket 4 enables the ship unloader to simultaneously load and unload, thereby reducing the time for loading and unloading of the ship unloader and improving the working efficiency of the ship unloader, thereby improving the efficiency of ship unloading and reducing the time cost of ship unloading.

[0087] The support rail frame 2 comprises two outer rail columns 21 symmetrically distributed, two inner rail columns 22 symmetrically distributed are arranged between the two outer rail columns 21, and a plurality of transverse connecting strip columns 23 are connected between the outer rail columns 21 and the inner rail columns 22.

[0088] The top of each of the plurality of transverse connecting strip columns 23 is connected with a longitudinal connecting strip column 24, and the top end of each of the plurality of longitudinal connecting strip columns 24 is connected with the bottom of two upper rail columns 25 respectively.

[0089] In the technical scheme, the support rail frame 2 can support the structures such as the first grab bucket 3 and the second grab bucket 4.

[0090] The first drive slider 6 is in sliding connection with the surfaces of the two inner rail columns 22 at both ends respectively.

[0091] The first drive slider 6 is rotatably connected with a plurality of first rollers 10 on the inner side, and the side surface of the first roller 10 is in contact with the inner rail column 22.

[0092] In the technical scheme, the first drive slider 6 can be more stable and smooth when moving through the first roller 10.

[0093] The first drive slider 6 drives the first roller 10 to roll at the inner rail column 22 when moving, so that the first drive slider 6 is more smooth when moving.

[0094] The second drive slider 9 is connected with anti-deviation sliders 8 on both sides, and the two anti-deviation sliders 8 are in sliding connection with the surfaces of the two outer rail columns 21 respectively.

[0095] The anti-deviation sliding block 8 is rotatably connected with a plurality of second rollers 11 on the inner side, and the side of the second roller 11 is in contact with the outer track column 21.

[0096] In the technical solution, the second roller 11 can make the anti-deviation sliding block 8 and the second driving sliding block 9 more smooth and stable when moving.

[0097] The anti-deviation sliding block 8 drives the second roller 11 to roll at the outer track column 21 when moving, so that the anti-deviation sliding block 8 is more stable and smooth when moving.

[0098] The lifting assembly 5 comprises a connecting frame 51, and the bottom of the first driving sliding block 6 and the bottom of the anti-deviation sliding block 8 are both connected with the connecting frame 51.

[0099] The inner side of the connecting frame 51 is provided with a retractable shaft 52, and the two ends of the retractable shaft 52 are rotatably penetrated and connected with the connecting frame 51.

[0100] One end of the retractable shaft 52 is connected with the output end of a retractable driving source 53, and the retractable driving source 53 is fixedly installed on the outer side of the connecting frame 51.

[0101] The surface of the retractable shaft 52 is connected with the upper end of a lifting steel cable 54, the lower end of the lifting steel cable 54 is connected with the top of a connecting plate 55, and the upper ends of the first grab bucket 3 and the second grab bucket 4 are movably connected with the bottoms of two connecting plates 55, respectively.

[0102] In the technical solution, the lifting assembly 5 can adjust the height of the first grab bucket 3 and the second grab bucket 4, respectively, so as to realize the grabbing and unloading of the ship materials.

[0103] In use, the retractable driving source 53 drives the retractable shaft 52 to rotate, and the retractable shaft 52 winds or unwinds the retractable driving source 53 when rotating, so as to drive the connecting plate 55 to rise or fall, thereby driving the first grab bucket 3 or the second grab bucket 4 to move in the same direction, realizing the rising or falling operation of the first grab bucket 3 and the second grab bucket 4, and thus realizing the grabbing and unloading of the materials by the first grab bucket 3 and the second grab bucket 4.

[0104] Then, the first driving sliding block 6, the first grab bucket 3 and other structures are driven by the first drive control mechanism to move along the support track frame 2, and the second driving sliding block 9 and the second grab bucket 4 and other structures are driven by the second drive control mechanism to move along the support track frame 2, so as to send the materials grabbed by the first grab bucket 3 or the second grab bucket 4 to a designated area for unloading, thereby completing the unloading operation.

[0105] The first drive control mechanism is installed at a position between the two inner track columns 22, the second drive control mechanism is installed at a position between the two upper track columns 25, and the first drive control mechanism and the second drive control mechanism both comprise a moving assembly 12 and a power assembly 13, and one end of the moving assembly 12 is in transmission connection with the power assembly 13.

[0106] The moving assembly 12 comprises left and right rotating shafts 121 and 122, which are arranged left and right, and one end of each of the left and right rotating shafts 121 and 122 is drivingly connected with the power assembly 13.

[0107] One end of the left driving steel cable 123 is connected to the side of the left rotating shaft 121, and one end of the right driving steel cable 124 is connected to the side of the right rotating shaft 122.

[0108] The left and right rotating shafts 121 and 122 and the winding and unwinding shaft 52 are each composed of a central shaft and a plurality of anti-disengagement components, each of which is composed of two symmetrically distributed anti-disengagement discs connected to the surface of the central shaft.

[0109] The arrangement of the anti-disengagement discs prevents the left and right driving steel cables 123 and 124 and the lifting steel cable 54 from disengaging and loosening when winding and unwinding, further increasing the stability of the operation of the first and second grab buckets 3 and 4.

[0110] In the present technical solution, the first grab bucket 3 is moved by the first drive control mechanism, and the second grab bucket 4 is operated by the second drive control mechanism.

[0111] The power assembly 13 comprises a power source 131, the output end of which is connected with a driving gear 132, the side of which is engaged with a driven gear 133, one end of each of the left and right rotating shafts 121 and 122 is connected with the driven gear 133, and the other end of each of the left and right rotating shafts 121 and 122 is rotatably connected with the support rail frame 2.

[0112] In the present technical solution, the power assembly 13 provides driving force for the moving assembly 12.

[0113] The outer side of the driving gear 132 and the driven gear 133 is provided with a protective shell 134, one side of which is connected with the support rail frame 2, and the inner wall of the protective shell 134 is installed with the power source 131.

[0114] One side of the protective shell 134 is provided with a preset hole, and one end of each of the left and right rotating shafts 121 and 122 is rotatably connected with one side of the protective shell 134 through the preset hole.

[0115] In the present technical solution, the protective shell 134 is used to protect the structures such as the driving gear 132 and the driven gear 133.

[0116] In use, the power source 131 drives the main gear 132 to rotate, thereby driving the driven gear 133 to rotate, and thus driving the left rotating shaft 121 or the right rotating shaft 122 to rotate, which can respectively release or wind the left driving cable 123 and the right driving cable 124;

[0117] The release or winding of the left driving cable 123 and the right driving cable 124 can respectively drive the first driving slider 6 to move along the inner rail column 22, drive the second driving slider 9 to move along the fixed rail 15, and drive the anti-deviation slider 8 to move along the outer rail column 21, thereby adjusting the positions of the first driving slider 6 and the second driving slider 9.

[0118] The movement of the first driving slider 6 drives the first grab bucket 3 and other structures to move in the same direction, thereby adjusting the position of the first grab bucket 3. The movement of the second driving slider 9 drives the hollow frame 7 to move in the same direction, thereby driving the second grab bucket 4 and other structures to move in the same direction, thereby adjusting the position of the second grab bucket 4.

[0119] Embodiment Two

[0120] As an embodiment of the present application, as shown in Figure 8 and Figure 9 The difference between the embodiment and other embodiments is that the left driving cable 123 and the right driving cable 124 are provided with a guide assembly 14 at the end away from the first driving slider 6 and the second driving slider 9, the guide assembly 14 includes two first guide shafts 141 and two second guide shafts 142, and the first guide shafts 141 and the second guide shafts 142 are distributed left and right.

[0121] The two first guide shafts 141 are symmetrically distributed front and back, and the two second guide shafts 142 are symmetrically distributed up and down.

[0122] The left driving cable 123 and the right driving cable 124 pass through between the two first guide shafts 141 and the two second guide shafts 142, respectively.

[0123] In the technical solution, the guide assembly 14 guides the left driving cable 123 and the right driving cable 124, so as to wind the left driving cable 123 and the right driving cable 124 around the left rotating shaft 121 and the right rotating shaft 122.

[0124] The two ends of the first guide shaft 141 and the two ends of the second guide shaft 142 are respectively rotationally connected with the inner walls of the fixed frames 143, the adjacent two fixed frames 143 are connected through the mounting strip columns 144, and the sides of the fixed frames 143 located on both sides are respectively connected with the support rail frame 2 through the mounting strip columns 144.

[0125] In the technical solution, the first guide shaft 141 and the second guide shaft 142 are supported by the fixed frame 143 and the mounting column 144.

[0126] The first drive slider 6 and the second drive slider 9 are respectively connected with a plurality of left drive steel wires 123 on one side, and are respectively connected with a plurality of right drive steel wires 124 on the other side.

[0127] Each of the left drive steel wire 123 and the right drive steel wire 124 is provided with a guide assembly 14.

[0128] When the left drive steel wire 123 and the right drive steel wire 124 move, the left drive steel wire 123 and the right drive steel wire 124 pass through between the two first guide shafts 141 and the two second guide shafts 142, respectively, and the first guide shaft 141 and the second guide shaft 142 guide the left drive steel wire 123 and the right drive steel wire 124, so that the left rotating shaft 121 and the right rotating shaft 122 are more stable when the left drive steel wire 123 and the right drive steel wire 124 are retracted, and the shaking of the first grab 3 and the second grab 4 during operation can be reduced, and the stability of the first grab 3 and the second grab 4 during operation can be increased.

[0129] Embodiment three

[0130] As an embodiment of the present application, as shown in Figure 4 and Figure 5 The difference between the embodiment and other embodiments is that the second drive slider 9 is provided with a sliding groove on both sides, and the opposite positions of the two upper rail columns 25 are connected with a fixed rail 15, the cross section of the fixed rail 15 is in T-shaped structure, and the fixed rail 15 is slidably connected with the side surface of the second drive slider 9 through the sliding groove.

[0131] In use, under the traction of the second drive control mechanism, the second drive slider 9 moves along the fixed rail 15, the movement track of the second drive slider 9 is limited by the fixed rail 15, and the movement track of the second drive slider 9 and the hollow frame 7 is limited by the limiting effect of the outer rail column 21 and the like, further increasing the stability of the movement of the second drive slider 9 and the hollow frame 7, avoiding the low stability of the second grab 4 and the support rail frame 2 when the distance is long, and ensuring the stability of the material during unloading.

[0132] The first drive control mechanism and the second drive control mechanism can also adopt gear and rack, walking trolley or other arbitrary telescopic drive equipment, so as to realize the purpose that the first drive control mechanism and the second drive structure can respectively drive the first drive slider 6 and the second drive slider 9 to move along the support rail frame 2.

[0133] The collecting and releasing driving source 53 and the power source 131 are motor sets or other devices capable of outputting rotary kinetic energy.

[0134] It should be noted that the variable frequency device is arranged at the collecting and releasing driving source 53 and the power source 131, and the load demand of the first grab bucket 3 and the second grab bucket 4 is monitored in real time by using the variable frequency device. According to the detection result, the power supply frequency and voltage of the collecting and releasing driving source 53 and the power source 131 are adjusted, so that the collecting and releasing driving source 53 and the power source 131 are accurately matched with the actual load demand of the first grab bucket 3 and the second grab bucket 4, and the ship unloader is more energy-saving and efficient during operation.

[0135] In addition, when the collecting and releasing driving source 53 and the power source 131 are started, soft start is realized by using the variable frequency device, and the starting current is limited within 1.2 times of the rated current, and the rotating speed is gradually increased. When the collecting and releasing driving source 53 and the power source 131 are directly started, the starting current can reach 5-7 times of the rated current, which causes power grid impact and energy loss. Compared with direct start, soft start can reduce starting energy consumption, and prolong the service life of the collecting and releasing driving source 53, the power source 131 and the power grid equipment.

[0136] Furthermore, the collecting and releasing driving source 53 and the power source 131 absorb reactive power during operation, resulting in low power factor. The variable frequency device arranged therein can improve the power factor by using the built-in power factor correction technology, reduce the reactive power loss, reduce the active power loss of the line, and realize indirect energy saving.

[0137] During operation of the ship unloader, the first grab bucket 3 and the second grab bucket 4 can be controlled respectively, so that the first grab bucket 3 can pass through the hollow frame 7 of the second grab bucket 4. In this process, the variable frequency device at the collecting and releasing driving source 53 and the power source 131 can realize smooth speed regulation, so that the operation of the first grab bucket 3 and the second grab bucket 4 is more stable, the number of frequent start-stop of the collecting and releasing driving source 53 and the power source 131 is reduced, and the total energy consumption of the ship unloader can be significantly reduced.

[0138] When the first grab bucket 3 and the second grab bucket 4 load goods, the load is large, at this time, the voltage of the collecting and releasing driving source 53 and the power source 131 is increased, so that the collecting and releasing driving source 53 and the power source 131 operate at high frequency. When the first grab bucket 3 and the second grab bucket 4 are idle, the load is low, at this time, the voltage of the collecting and releasing driving source 53 and the power source 131 is reduced, the current input is reduced, and the loss of the collecting and releasing driving source 53 and the power source 131 is reduced.

[0139] The microprocessor is built in the variable frequency device, and the frequency is regulated in real time to ensure that the collecting and releasing driving source 53 and the power source 131 always operate in the high-efficiency interval, improve the overall efficiency of the ship unloader, and further realize the purpose of reducing energy consumption.

[0140] Although the specific embodiments of the present application have been described above, it is understood by those skilled in the art that the present application is only illustrated by way of example, and the scope of protection of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present application, and such changes and modifications fall within the scope of protection of the present application.

Claims

1. A straddle-type double grab ship unloader comprising an unloader body (1) fixedly installed on a wharf land, characterized in that, The crossing type double grab bucket ship unloader also comprises a support rail frame (2) connected with the ship unloader body (1) on the side; A grab bucket unit and a drive control unit, the grab bucket unit is arranged below the support rail frame (2), the grab bucket unit is in transmission connection with the drive control unit, the drive control unit is installed at the support rail frame (2), the drive control unit is used for controlling the movement of the grab bucket unit, and the grab bucket unit is used for grabbing materials; The grab bucket unit comprises a first grab bucket (3) and a second grab bucket (4), the first grab bucket (3) and the second grab bucket (4) are in transmission connection with a lifting assembly (5) above, the lifting assembly (5) at the first grab bucket (3) is connected with the bottom of a first drive sliding block (6), the lifting assembly (5) is respectively connected with the bottom of two hollow frames (7) at the top, the two hollow frames (7) are respectively connected with the bottom of anti-deviation sliding blocks (8), the first drive sliding block (6), the anti-deviation sliding block (8) and a second drive sliding block (9) are in sliding connection with the support rail frame (2); The drive control unit comprises a first drive control mechanism and a second drive control mechanism, the first drive control mechanism is in transmission connection with the first drive sliding block (6), and the second drive control mechanism is in transmission connection with the second drive sliding block (9); The first drive control mechanism is installed at a position between two inner rail columns (22), the second drive control mechanism is installed at a position between two upper rail columns (25), and the first drive control mechanism and the second drive control mechanism both comprise a moving assembly (12) and a power assembly (13), one end of the moving assembly (12) is in transmission connection with the power assembly (13); The moving assembly (12) comprises a left rotating shaft (121) and a right rotating shaft (122), the left rotating shaft (121) and the right rotating shaft (122) are arranged in a left-right manner, and one end of the left rotating shaft (121) and the right rotating shaft (122) is respectively in transmission connection with the power assembly (13); One end of the left rotating shaft (121) is connected with the left drive steel cable (123) on the side, one end of the right rotating shaft (122) is connected with the right drive steel cable (124) on the side, and the left and right sides of the first drive sliding block (6) and the left and right sides of the second drive sliding block (9) are respectively connected with one end of the left drive steel cable (123) and one end of the right drive steel cable (124); One end of the left drive steel cable (123) and the right drive steel cable (124) away from the first drive sliding block (6) and the second drive sliding block (9) is provided with a guide assembly (14), the guide assembly (14) comprises two first guide shafts (141) and two second guide shafts (142), and the first guide shafts (141) and the second guide shafts (142) are distributed in a left-right manner; The two first guide shafts (141) are symmetrically distributed in front and back, and the two second guide shafts (142) are symmetrically distributed in up and down; The left drive steel cable (123) and the right drive steel cable (124) pass through between the two first guide shafts (141) and the two second guide shafts (142) respectively.

2. The straddle-type double grab unloader according to claim 1, wherein: The support rail frame (2) comprises two symmetrically distributed outer rail columns (21), two symmetrically distributed inner rail columns (22) are arranged between the two outer rail columns (21), and a plurality of transverse connecting strip columns (23) are connected between the outer rail columns (21) and the inner rail columns (22); The top of each of the plurality of transverse connecting strip columns (23) is connected with a longitudinal connecting strip column (24), and the top end of each of the plurality of longitudinal connecting strip columns (24) is connected with the bottom of two upper rail columns (25) respectively.

3. The straddle-type double grab unloader according to claim 1, wherein: The two ends of the first driving sliding block (6) are respectively in sliding connection with the surfaces of the two inner rail columns (22); A plurality of first rollers (10) are rotatably connected to the inner side of the first driving sliding block (6), and the side surfaces of the first rollers (10) are in contact with the inner rail columns (22).

4. The straddle-type double grab unloader according to claim 1, wherein: The two sides of the second driving sliding block (9) are connected with anti-deviation sliding blocks (8), and the two anti-deviation sliding blocks (8) are respectively in sliding connection with the surfaces of the two outer rail columns (21); A plurality of second rollers (11) are rotatably connected to the inner side of the anti-deviation sliding block (8), and the side surfaces of the second rollers (11) are in contact with the outer rail columns (21).

5. The straddle-type double grab unloader according to claim 1, wherein: The bottom of the first driving sliding block (6) and the bottom of the anti-deviation sliding block (8) are connected with a connecting frame (51); A retractable shaft (52) is arranged on the inner side of the connecting frame (51), and the two ends of the retractable shaft (52) are rotatably penetrated through the connecting frame (51); One end of the retractable shaft (52) is connected with the output end of a retractable driving source (53), and the retractable driving source (53) is fixedly installed on the outer side of the connecting frame (51); The surface of the retractable shaft (52) is connected with the upper end of a lifting steel cable (54), the lower end of the lifting steel cable (54) is connected with the top of a connecting plate (55), and the upper ends of the first grab bucket (3) and the second grab bucket (4) are movably connected with the bottoms of the two connecting plates (55) respectively.

6. The straddle-type double grab unloader according to claim 1, wherein: The power assembly (13) comprises a power source (131), the output end of the power source (131) is connected with a driving gear (132), the side surface of the driving gear (132) is engaged with a driven gear (133), one end of each of the left rotating shaft (121) and the right rotating shaft (122) is connected with the driven gear (133), and the other end of each of the left rotating shaft (121) and the right rotating shaft (122) is rotatably connected with the support rail frame (2).

7. The straddle-type double grab unloader according to claim 6, wherein: The outer sides of the driving gear (132) and the driven gear (133) are provided with a protective shell (134), one side of the protective shell (134) is connected with the support rail frame (2), and the power source (131) is installed on the inner wall of the protective shell (134); One side of the protective shell (134) is provided with a preset hole, and one end of each of the left rotating shaft (121) and the right rotating shaft (122) is rotatably penetrated through the preset hole and connected with one side of the protective shell (134).

8. The straddle-type double grab unloader according to claim 1, wherein: The two ends of the first guide shaft (141) and the two ends of the second guide shaft (142) are respectively rotatably connected with the inner wall of a fixed frame (143), two adjacent fixed frames (143) are connected through a mounting column (144), and one side of the fixed frames (143) located at two sides is respectively connected with the support rail frame (2) through a mounting column (144).

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