CN115724234B - Ship unloader with boom lifting system - Google Patents

Abstract

The invention relates to the technical field of port equipment, in particular to a ship unloader with an arm support lifting system, which comprises an arm support, a material taking device, a portal frame and an arm support lifting system, wherein the material taking device is suitable for taking materials and comprises a chain bucket arm, the chain bucket arm is connected with the arm support, the portal frame comprises a door leg, the door leg is arranged on the side part of the arm support, the arm support lifting system comprises a gear, a rack and a driving structure, the rack is arranged on the side part of the door leg in the vertical direction, the driving structure is connected to the arm support, and the gear is connected with the output end of the driving structure and meshed with the rack. The ship unloader with the arm support lifting system provided by the invention realizes the integral lifting of the arm support, and can conveniently adjust the heights of the arm support and the chain bucket arm in a large range.

Description

Ship unloader with arm support lifting system

Technical Field

The invention relates to the technical field of port equipment, in particular to a ship unloader with an arm support lifting system.

Background

The chain bucket ship unloader has a long application history in a port bulk cargo ship unloading dock, and has a prominent environmental protection advantage. The conventional chain bucket ship unloader generally adopts a portal structure, a chain bucket arm is fixed at the front end of an arm support, and the movement of the chain bucket arm is realized through the rotation of the arm support and the pitching of the arm support. However, when the position of the chain bucket arm is adjusted, the traditional chain bucket ship unloader needs to be adjusted by the joint work of the rotation mechanism, the pitching mechanism and the chain bucket arm lifting mechanism, and the adjustment method is complex and tedious, so that the ship unloading efficiency of the whole ship unloader is low. Particularly, when the position is greatly adjusted in the Ship's Depth direction, the pitching mechanism and the chain bucket arm lifting mechanism are required to cooperate together to finish adjustment, so that the ship unloading efficiency of the whole ship is seriously influenced.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect that the ship unloading efficiency is low due to the fact that a plurality of structures are needed for adjusting the positions of the chain arms in the prior art, so that the ship unloading machine with the arm support lifting system for improving the ship unloading efficiency is provided.

In order to solve the problems, the invention provides a ship unloader with a boom lifting system, which comprises a boom, a material taking device, a portal frame and the boom lifting system, wherein the material taking device is suitable for taking materials and comprises a chain bucket arm, the chain bucket arm is connected with the boom, the portal frame comprises a door leg, the door leg is arranged on the side part of the boom, the boom lifting system comprises a gear, a rack and a driving structure, the rack is arranged on the side part of the door leg in the vertical direction, the driving structure is connected to the boom, and the gear is connected with the output end of the driving structure and meshed with the rack.

Optionally, the boom lifting system further comprises a speed reducer, and the gear is connected with the output end of the driving structure through the speed reducer.

Optionally, the driving structure is a driving motor.

Optionally, the rack is disposed on the door leg toward a side of the arm support.

Optionally, the driving structure and the speed reducer are both connected to the top of the arm support, and the gear is located above the arm support.

Optionally, the door legs are four, the four door legs are distributed on two sides of the arm support in a rectangular shape, and each door leg is provided with the rack.

Optionally, the arm support lifting system further comprises a locking structure, wherein the locking structure is connected to the arm support and used for locking the arm support on the corresponding height of the door leg.

Optionally, two sides of at least one door leg are respectively provided with one locking structure for clamping the door leg from two sides of the door leg.

Optionally, two sides of each door leg are respectively provided with one locking structure.

Optionally, the locking structure is a hydraulic cylinder and/or a rail clamp.

The invention has the following advantages:

1. According to the ship unloader with the arm support lifting system, the arm support lifting system is used for realizing the integral lifting of the arm support, so that the heights of the arm support and the chain bucket arm can be conveniently adjusted in a large range, the integral loading and unloading efficiency is greatly improved, and meanwhile, the safety of the ship unloader in extreme weather is effectively improved. The rack is arranged on the door leg along the vertical direction and meshed with a gear arranged on the arm support, the arm support is lifted in the vertical direction when the gear rotates, and the chain bucket arm and the material taking device are driven to lift in the vertical direction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic view of a ship unloader with boom hoist system of the present invention;

FIG. 2 shows a partial schematic view of a ship unloader with boom hoist system of the present invention;

FIG. 3 shows a partial top view of the ship unloader with boom hoist system of the present invention;

FIG. 4 is a schematic view of a reclaimer device of the present invention;

FIG. 5 is a partial enlarged view I of FIG. 4;

FIG. 6 is a second enlarged view of a portion of FIG. 4;

FIG. 7 is a schematic view of the fit of the swing mechanism and the take-off device of the present invention;

FIG. 8 is a schematic view of a plurality of swing positions of the reclaimer device of the present invention;

FIG. 9 is a partial schematic view of a bucket chain of the present invention;

fig. 10 is a schematic view of a hopper of the present invention.

Reference numerals illustrate:

10. the system comprises a portal frame, 11 portal legs, 13 running trolleys, 20 cabins, 30 materials, 40 wharf foundations;

100. The material taking device comprises a material taking device, a driving motor, a driving sprocket, a rotating shaft, a 104, a chain bucket arm, a 1051, a first redirecting sprocket, a 1052, a second redirecting sprocket, a 106, a tensioning push rod, a 107, a housing, a 108, a tensioning sprocket, a 110, a hopper chain, a 111, a hopper, a 112, a connecting plate, a 113, a hopper back plate, a 114 and an ear plate;

120. a material lifting section; 130, a first descending section, 140, a second descending section, 150, a material taking section, 160, and a material discharging section;

200. the device comprises a swinging mechanism, a swinging mechanism tensioning cylinder, a swinging mechanism traction rope, a swinging mechanism redirecting pulley, a swinging mechanism damping cylinder, a damping pulley, a traction hinge point and a swinging mechanism tensioning cylinder, wherein the swinging mechanism tensioning cylinder is a swinging mechanism tensioning cylinder;

210. The first swing state, 220, the second swing state, 230, the third swing state;

600. The arm support lifting system comprises an arm support, a 602, a gear, a 603, a rack, a 604, a driving structure, a 605, a speed reducer, a 606 and a locking structure.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1 to 10, the present embodiment provides a ship unloader with a boom lifting system 600, which comprises a boom 601, a material taking device, a portal 10 and the boom lifting system 600, wherein the material taking device is suitable for taking materials and comprises a chain arm connected with the boom 601, the portal 10 comprises a portal leg 11, the portal leg 11 is arranged on the side part of the boom 601, the boom lifting system 600 comprises a gear 602, a rack 603 and a driving structure 604, the rack 603 is arranged on the side part of the portal leg 11 along the vertical direction, the driving structure 604 is connected with the boom 601, and the gear 602 is connected with the output end of the driving structure 604 and meshed with the rack 603.

Through the cantilever crane lifting system 600, the whole lifting of the cantilever crane 601 is realized, the heights of the cantilever crane 601 and the chain bucket arm can be conveniently adjusted in a large range, the whole loading and unloading efficiency is greatly improved, and meanwhile, the safety of the ship unloader in extreme weather is effectively improved. The rack 603 is arranged on the door leg 11 along the vertical direction, is meshed with the gear 602 arranged on the arm support 601, realizes lifting of the arm support 601 in the vertical direction when the gear 602 rotates, and drives the chain bucket arm and the material taking device to lift in the vertical direction.

In a specific embodiment, the portal frame 10 includes a plurality of door legs 11, and a first beam sequentially connected to each door leg 11 at the top of the door leg 11, and a second beam sequentially connected to each door leg 11 at the bottom of the door leg 11.

In this embodiment, the boom lifting system 600 further includes a speed reducer 605, and the gear 602 is connected to the output end of the driving structure 604 through the speed reducer 605. The speed reducer 605 plays a role of transmission and speed reduction.

In this embodiment, the driving structure 604 is a driving motor.

In this embodiment, a rack 603 is provided on the door leg 11 toward the side of the arm support 601. Facilitating mating with gear 602.

In this embodiment, the driving structure 604 and the speed reducer 605 are both connected to the top of the arm support 601, and the gear 602 is located above the arm support 601. The driving structure 604 and the speed reducer 605 are mounted and dismounted on the arm support 601 more conveniently, an operator is not required to raise the head to mount and dismount, the gravity of the driving structure 604 and the speed reducer 605 is not required to be overcome to mount the driving structure 604 and the speed reducer 605 on the side part and the bottom of the arm support 601, and the connection of the driving structure 604 and the speed reducer 605 and the arm support 601 is not easy to misplace or deviate.

As an alternative embodiment, the rack 603 may be disposed on a side portion of the door leg 11 perpendicular to the arm frame 601, the driving structure 604 and the speed reducer 605 are both connected to the top of the arm frame 601, and the gear 602 is suspended and connected to the side portion of the door leg 11.

In this embodiment, the number of the door legs 11 is four, the four door legs 11 are rectangular and distributed on two sides of the arm support 601, and each door leg 11 is provided with the rack 603. Each door leg 11 is matched with a group of arm support lifting systems 600, so that the arm support 601 can be controlled at four angles simultaneously, and the arm support 601 is prevented from being inclined in the lifting process.

As an alternative embodiment, four door legs 11 may be provided, four door legs 11 are rectangular and distributed on two sides of the arm support 601, two door legs 11 opposite to each other and disposed on two sides of the arm support 601 are respectively provided with a rack 603, and the other two door legs 11 opposite to each other and disposed on two sides of the arm support 601 are in rolling fit with the arm support 601 through a rolling structure. The rolling structure comprises rollers, the rollers are connected to the arm support 601 and are in rolling fit with the door legs 11, friction between the door legs 11 and the arm support 601 is reduced, and noise is reduced. The rolling structure further comprises an elastic damping piece, the idler wheel is connected with the arm support 601 through the elastic damping piece, and the elastic damping piece can reduce the influence of vibration in the rolling process of the idler wheel on the arm support 601.

In this embodiment, the boom lifting system 600 further includes a locking structure 606, where the locking structure 606 is connected to the boom 601 and is used to lock the boom 601 to the corresponding height of the door leg 11. Specifically, the locking structure 606 may lock the arm frames 601 from both sides of the door legs 11, or the locking structure 606 may lock the arm frames 601 from both sides of the two door legs 11, or may abut against the locking arm frames 601 from one side of the door legs 11.

In this embodiment, two sides of at least one door leg 11 are respectively provided with one locking structure 606 for clamping the door leg 11 from two sides of the door leg 11. In a preferred embodiment, two locking structures 606 are provided on each of two opposite sides of the door leg 11 on each side of the arm frame 601.

In this embodiment, two sides of each door leg 11 are respectively provided with one locking structure 606. The locking effect is good, and the skew can not occur.

In one implementation of this embodiment, the locking structure 606 is a hydraulic cylinder.

In another implementation of this embodiment, the locking structure 606 is a rail clamp.

In another implementation of this embodiment, the partial locking structure 606 is a hydraulic cylinder and the partial locking structure 606 is a rail clamp.

In this embodiment, before the arm support 601 is lifted, the locking structure 606 is released, the driving structure drives the gear to rotate, the gear is meshed with the rack to drive the arm support 601 to lift, when the arm support 601 is lifted in place or is lowered to a proper height, the locking structure 606 clamps the door legs 11 from two sides, the height position of the arm support 601 is fixed, and the lifting process is finished.

The ship unloader with the boom lifting system 600 of the present embodiment further includes a swing material taking assembly, including a material taking device 100, a rotating shaft 103 and a swing mechanism 200, wherein the material taking device 100 is suitable for taking a material 30, the rotating shaft 103 is hinged with the material taking device 100, the material taking device 100 is suitable for swinging around the rotating shaft 103, the swing mechanism 200 is flexibly connected with a traction hinge 206 of the material taking device 100, the swing mechanism 200 is suitable for towing the material taking device 100 so that the material taking device 100 is maintained at a first preset position when no external force is applied, in the first preset position, a vertical line passing through the gravity center of the material taking device 100 is arranged at a distance from the axle center of the rotating shaft 103, and the moment of the material taking device under the action of gravity enables the material taking device to have a tendency of moving towards the land side direction.

Preferably, the reclaimer device 100 includes a chain of hoppers 110 connected end to end in sequence by a plurality of hoppers 111, the chain of hoppers 110 being reciprocally moved back and forth to scoop material 30 using the hoppers 111, the specific construction of which is described in detail below.

Specifically, the swing mechanism 200 includes a swing mechanism tensioning cylinder 201 and a swing mechanism traction rope 202, one end of the swing mechanism traction rope 202 is connected to the traction hinge 206, and the other end is connected to the swing mechanism tensioning cylinder 201, and the swing mechanism tensioning cylinder 201 is adapted to facilitate the movement of the material taking device 100 in the land side direction when it is extended, and to drive the material taking device 100 in the sea side direction when it is contracted.

One end of the wire rope is connected with a swinging mechanism tensioning cylinder 201, and after bypassing a fixed pulley block connected to the tail end of the damping cylinder, the other end of the wire rope is connected with a traction hinge point 206 at the lower part of the material taking device 100. The stretching of the tensioning cylinder drives the steel wire rope to move, so that the swing of the material taking device 100 can be pulled.

Preferably, the swing mechanism tensioning cylinder 201 is adapted to actively adjust the angle of the reclaimer device 100 as desired. Preferably, the swing mechanism tensioning cylinder 201 does not follow up to extend or retract when the reclaimer 100 is subjected to an external force.

Preferably, the swing pick-up assembly of the present embodiment is preferably applied to a ship unloader, the ship unloader extends out of the arm frame 601, and the pick-up device 100 is mounted on the arm frame 601. And in particular, the material taking device 100 is hinged to the arm frame 601 by a rotating shaft 103, so that the material taking device 100 can swing around the rotating shaft 103 relative to the arm frame 601. The upper portion of the reclaimer device 100 is hingedly connected to a swivel axis 103 such that the reclaimer device 100 is adapted to swing about the swivel axis 103. The middle or lower part of the material taking device 100 is provided with a traction hinge point 206, the swinging mechanism 200 is flexibly connected with the traction hinge point 206, and specifically can be connected with the traction hinge point 206 through a swinging mechanism traction rope 202, so that the material taking device 100 is maintained at a first preset position when no external force is applied, when the material taking device 100 is at the first preset position, a vertical line passing through the gravity center of the material taking device 100 is arranged at intervals with the axle center of the revolving shaft 103, and the moment of the material taking device under the action of gravity enables the material taking device to have a trend of moving towards the land side direction. The take-off device is under its own weight so that it has a tendency to move around the swivel axis 103 and in a land-side direction.

It should be noted that, the vertical line passing through the center of gravity of the material taking device and the axis of the rotating shaft 103 are spaced from each other, 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, that is, the axis of the rotating shaft 103 and the center of gravity of the material taking device are not on the same straight line along the vertical direction.

The swing mechanism 200 provides traction to the reclaimer device 100 such that the reclaimer device 100 is maintained in a first predetermined position when not subjected to external forces, in which position there is always a moment in the land-side direction, which moment is balanced by the tension of the swing mechanism 200. When the material taking device 100 moves from the sea side to the land side, the material taking device 100 can be always propped against the front end of the moving direction by means of the gravity of the material taking device 100 which weighs tens of tons, so that the front surface of a hopper can be conveniently excavated, and even if the material taking device encounters certain resistance, the material taking device can overcome. When the material taking device 100 moves from the land side to the sea side, the posture of the material taking device 100 is always kept stable by means of the tension of the traction steel wire rope.

When the cabin suddenly encounters a surge condition, in the ship width direction, if the force applied by the surge to the ship and the material taking device 100 is directed to the sea side direction, the material taking device 100 can swing clockwise, at this time, the force applied by the surge to the material taking device 100 only reduces the pulling force of the steel wire rope, and if the moment of the surge force to the rotating shaft 103 exceeds the moment of the gravity to the rotating shaft 103, the material taking device 100 swings slightly clockwise, the surge force swings, and the force is prevented from being transferred to the ship unloader structure. If the force applied by the surge to the ship and the material taking device 100 is directed to the land side, the material taking device 100 receives the material taking resistance, the gravity and the steel wire rope pulling force, and suddenly receives the surge force, the steel wire rope pulling force can be rapidly increased, at the moment, the force applied by the pulley at the tail end of the damping cylinder can also be rapidly increased, when the threshold value is exceeded, the damping cylinder is released, the steel wire rope length is increased, and the material taking device 100 swings anticlockwise, so that a new balance state is achieved. The force applied to the material taking device 100 during the surge is converted into the swing of the material taking device 100, so that the swing of the material taking device 100 can not act on the structure of the chain bucket ship unloader, and the safety of the structure under the surge is ensured.

According to the swing material taking assembly provided by the embodiment, the material taking device 100 is pulled by the swing mechanism 200, so that the material taking device 100 is maintained at the first preset position when no external force is applied, when the material taking device is at the first preset position, a vertical line passing through the gravity center of the material taking device 100 is arranged at intervals with the axle center of the rotary shaft 103, the material taking device has a trend of moving towards the land side direction due to the moment of the material taking device under the action of gravity, the material taking device can take materials in an auxiliary mode by utilizing the moment generated by the gravity of the material taking device, meanwhile, the material moving along with a ship under the action of surge is prevented from impacting the material taking arm, the impact force is prevented from being transmitted to the structure of the ship unloader, and the safety and reliability of the structure are ensured.

Specifically, the rocking mechanism 200 further includes a rocking mechanism redirecting pulley 203 disposed between the rocking mechanism tensioning cylinder 201 and the traction hinge 206, and in sliding contact with the rocking mechanism traction rope 202.

Specifically, the rocking mechanism 200 further comprises a rocking mechanism damping cylinder 204 and a damping pulley 205, wherein the damping pulley 205 is connected with the free end of the rocking mechanism damping cylinder 204 and is in sliding contact with the rocking mechanism traction rope 202, and the damping pulley 205 is arranged between the rocking mechanism redirecting pulley 203 and the traction hinge point 206;

The swing mechanism damping cylinder 204 is adapted to extend when the reclaimer 100 is subjected to a moment in the land side direction greater than a preset threshold and to retract when the reclaimer 100 is subjected to a moment in the sea side direction.

Preferably, the swing mechanism damping cylinder 204 is capable of following the elongation according to the condition that the material taking device 100 is subjected to an external force, so as to adjust the angle of the material taking device 100. If the reclaimer 100 receives moment in the land side direction, the reclaimer 100 pulls the swing mechanism pulling rope 202, if the force of the swing mechanism pulling rope 202 is greater than the preset threshold value of the swing mechanism damping cylinder 204, the swing mechanism damping cylinder 204 stretches, and if the reclaimer 100 receives moment in the sea side direction, the reclaimer 100 reduces the acting force to the swing mechanism pulling rope 202, so that the damping cylinder contracts.

When the surge occurs, the swing mechanism damping cylinder 204 stretches or contracts according to the force direction, when the surge is completed, the force of the swing mechanism traction rope 202 is recovered to the state before the surge, the stretching amount of the swing mechanism damping cylinder 204 is recovered to the state before the surge, and meanwhile, the angle of the material taking device 100 is recovered to the state before the surge. According to the swing material taking assembly provided by the embodiment, the swing mechanism damping oil cylinder 204 is arranged and is extended when the material taking device 100 receives the moment towards the land side direction, and the material taking device 100 is contracted when receiving the moment towards the sea side direction, so that the length of the swing mechanism traction rope 202 can be automatically adjusted according to the stress condition of the material taking device 100, the material taking device 100 can conveniently and quickly reach a new balance state after being stressed, the force applied to the material taking device 100 during surge is ensured to be converted into the swing action of the material taking device 100, the structure of the chain bucket ship unloader cannot be acted, and the safety of the structure under the surge is ensured.

Specifically, the rocking mechanism tensioning cylinder 201 is adapted to telescope in the horizontal direction.

Specifically, the rocking mechanism damping cylinder 204 is adapted to telescope in a horizontal direction.

Optionally, the stroke of the swing mechanism tensioning cylinder is larger than the stroke of the swing mechanism damping cylinder.

Preferably, the stress threshold of the rocking mechanism tensioning cylinder 201 is greater than the stress threshold of the rocking mechanism damping cylinder 204, so that the response of the rocking mechanism tensioning cylinder 201 when stressed is slower than the response of the rocking mechanism damping cylinder 204.

The swing mechanism tensioning cylinder 201 has a large stroke and a slower response, and the swing mechanism damping cylinder 204 has a small stroke and a faster response.

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

the swing mechanism tensioning cylinder 201 is elongated and adapted to reduce the angle between the axis of the reclaimer device 100 along its length and the vertical.

Because the hatch of the cabin is provided with the coaming, the material below the coaming is difficult to take out in the normal operation position of the material taking device 100, and therefore, the swing material taking assembly provided by the embodiment can also drive the material taking device 100 to perform angle adjustment according to the requirement.

In a normal operating condition, the reclaimer 100 is in an angular position of the first swing state 210, and when the reclaimer needs to be adjusted from the first swing state 210 to the second swing state 220, the swing mechanism tensioning cylinder 201 extends, and the reclaimer 100 can be adjusted to the second swing state 220 under the action of gravity moment. When it is desired to adjust from the first swing state 210 to the third swing state 230, the swing mechanism tensioning cylinder 201 is retracted and the rope pulling reclaimer 100 is adjusted to the third swing state 230. Through adjusting different postures, the ship cabin corner materials are convenient to empty, and the cabin cleaning amount is reduced.

According to the swing material taking assembly provided by the embodiment, the material taking device is driven to swing around the rotating shaft 103 by a small extent through the extension and retraction of the swing mechanism tensioning oil cylinder 201, so that the included angle between the axis of the material taking device 100 along the length direction and the vertical direction is changed, the posture of the material taking device is adjusted, the material taking device swings to a certain angle, and the material taking device conveniently enters the corners in the cabin to dig materials. The cabin cleaning amount is reduced, and the actual use efficiency is improved.

The ship unloader with the boom lifting system 600 of the embodiment comprises a boom 601, a running trolley 13 and the swing material taking assembly, wherein the running trolley 13 is arranged on the boom 601 and is suitable for moving along the length direction of the boom 601, the swing material taking assembly is arranged on the running trolley 13, and the running direction of the running trolley 13 is parallel to the rotation plane of the material taking device 100.

Specifically, the swing mechanism tensioning cylinder 201 and the swing mechanism damping cylinder 204 are both fixed on the running trolley 13, and the rotating shaft 103 is fixedly arranged on the running trolley 13.

Specifically, the material taking device 100 is provided with a hopper chain 110 formed by sequentially connecting a plurality of hoppers 111 end to end, the stress direction of the hopper chain 110 when the material 30 is taken out is parallel to the rotation plane of the material taking device 100, and the opening direction of the hopper chain 110 when the material 30 is taken out is toward the sea.

Preferably, the ship unloader is disposed on the quay foundation 40 and extends to the sea side through the arm frame 601. Preferably, the extraction device 100 is adapted to extend into the hold 20 to facilitate the extraction of the material 30.

Preferably, the material taking device only takes materials from the front side in the ship width direction in one movement, and the main load born by the material taking device is in the plane of the material taking device, so that the service life of the device is prolonged and the efficiency is improved.

The L-shaped chain bucket ship unloader solves the environmental protection problems of material scattering and leakage and the like in the prior art, but the L-shaped chain bucket material taking head adopts a horizontal rotation feeding mode, so that the lower end of a vertical arm of the chain bucket is easy to bear larger horizontal force, and the overlarge torsion of the material taking arm is easy to occur, thereby causing the faults of a material taking arm rotating mechanism and an arm support rotating mechanism. The feeding mode of rotary heap extrusion is characterized in that the feeding width is determined by three parameters of the chain bucket pitch, the chain speed and the chain bucket movement speed, but the three parameters are mutually restricted, the feeding width can be influenced when the speed is too high, and the overall lifting efficiency can be influenced when the speed is too low, so that the rotary material taking mode limits the further improvement of the efficiency.

In order to solve the problems that a ship unloader is unreasonable and easy to damage due to stress and low in ship unloading efficiency, the material taking device provided by the embodiment comprises a chain bucket arm 104, a bucket chain 110, a driving unit and a rotating shaft 103, wherein the bucket chain 110 is formed by sequentially connecting a plurality of hoppers 111 end to end, the bucket chain 110 is arranged around the periphery side of the chain bucket arm 104, the driving unit is suitable for driving the bucket chain 110 to rotate relative to the chain bucket arm 104, the rotating shaft 103 is hinged with the chain bucket arm 104, the chain bucket arm 104 is suitable for swinging around the rotating shaft 103, and the stress direction of the bucket chain 110 when the material 30 is excavated is parallel to the rotating plane of the chain bucket arm 104.

Preferably, the arm 104 is used as a main body structure of the material taking device for supporting other structural components, and in this embodiment, the arm 104 may be a metal frame, which extends along a length direction.

Preferably, the direction of the stress of the hopper chain 110 when digging the material 30 is the extending direction of the material taking section 150.

The hopper chain 110 is formed by sequentially connecting a plurality of hoppers 111 end to end, and the hopper chain 110 is configured in a ring shape and is suitable for being driven by a driving unit to operate relative to the chain arm 104. The hopper chain 110 is provided with a plurality of hoppers 111, so that the hoppers 111 are used to scoop materials during the cyclic reciprocation, and after the materials are lifted to a certain height, the materials 30 are dumped, and then the scoops are continued to scoop the materials, so that the cyclic reciprocation is performed. In this embodiment, the material 30 may be coal, grains such as corn and wheat, or other materials that can be contained in the hopper 111.

Preferably, the material taking device of the embodiment is preferably applied to a ship unloader, the ship unloader extends out of the arm frame 601, and the chain bucket arm 104 is mounted on the arm frame 601. And specifically, the arm 104 is hinged to the arm frame 601 by a pivot shaft 103, so that the arm 104 can swing around the pivot shaft 103 relative to the arm frame 601. And further, the stress direction of the hopper chain 110 when the material 30 is excavated is parallel to the rotation plane of the chain arm 104, so that the hopper arm 104 cannot bear additional acting force when the material taking device works, and when the torsion force of the hopper chain 110 when the material 30 is excavated is overlarge, the chain arm 104 can swing freely around the rotation shaft 103 under the action of force, the main load born by the material taking device is in the plane of the material taking device, the overlarge stress of the chain arm 104 is avoided, and the equipment life is prolonged and the efficiency is improved.

According to the material taking device provided by the embodiment, the rotating shaft 103 is arranged, so that the chain bucket arm 104 is suitable for swinging around the rotating shaft 103, and the stress direction of the hopper chain 110 when the material 30 is excavated is parallel to the rotating plane of the chain bucket arm 104, so that the main load born by the material taking device is ensured to be in the plane of the material taking device, the stress is more reasonable, the operation reliability is improved, the occurrence of faults caused by overlarge stress of the chain bucket arm 104 is avoided, and the service life of equipment is prolonged and the efficiency is improved.

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 arm 104, further, the opening direction of the hopper 111 is parallel to the translation direction of the material taking device along the arm frame 601, that is, a front feeding mode is adopted, so that the hopper 111 can more directly scoop materials into the hopper when digging materials, and the working efficiency is greatly improved. By adopting the front feeding mode, the material can be prevented from piling and extruding on the head of the material taking head, and larger lateral excavation resistance is avoided.

Specifically, the pivot shaft 103 is hinged to the upper portion of the arm 104;

the vertical line passing through the center of gravity of the material taking device is spaced from the axis of the rotary shaft 103.

It should be noted that, the vertical line passing through the center of gravity of the material taking device and the axis of the rotating shaft 103 are spaced from each other, 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, that is, the axis of the rotating shaft 103 and the center of gravity of the material taking device are not on the same straight line along the vertical direction. In order to maintain this state, the swing mechanism 200 is flexibly connected to the traction hinge 206 of the material taking device 100, the swing mechanism 200 is adapted to pull the material taking device 100 so that the material taking device 100 is maintained at the first preset position when no external force is applied, in the first preset position, a vertical line passing through the center of gravity of the material taking device 100 is spaced from the axis of the revolving shaft 103, and the moment of the material taking device under the action of gravity causes the material taking device to have a tendency to move towards the land side.

According to the material taking device provided by the embodiment, the vertical line passing through the gravity center of the material taking device is arranged with the axis of the rotary shaft 103 at intervals, so that the material taking device always has a trend and moment of moving towards the front end of material taking, the pressure of the material taking device on materials is increased, the moment generated by self gravity of the material taking device can be utilized, the moving trend towards the head direction of a hopper is always kept, the material taking is facilitated, and the energy consumption is reduced.

When the material taking device is used for excavating operation, the moment generated by gravity of the material taking device can be used for always keeping the movement trend towards the head direction of the hopper, if resistance is encountered, for example, the head of the material taking device can always support the position of the hardened material by the gravity of the material taking device, the breaking force on the hardened material is improved, the material taking device can continuously advance after the front material is excavated by the material taking device, the material taking efficiency is improved, the additional acting force is reduced, the material taking device can finish material taking by the gravity of the material taking device even without the additional acting force, and the energy consumption is reduced.

Specifically, the driving unit comprises a driving motor 101 and a driving sprocket 102, wherein the peripheral side of the driving sprocket 102 is attached to the hopper chain 110, and the driving motor 101 is suitable for driving the hopper chain 110 to operate through the driving sprocket 102.

Preferably, the output shaft at the tail end of the driving motor 101 is connected with the driving sprocket 102 after being decelerated, and the driving sprocket 102 is located at the upper part of the material taking device.

Specifically, the rotation axis of the drive sprocket 102 coincides with the axis of the rotary shaft 103.

Specifically, the material taking device further comprises two tensioning chain wheels 108, which are arranged at one end far away from the driving chain wheel 102 along the length direction of the chain bucket arm 104;

the two tensioning sprockets 108 are adapted to extend the hopper chain 110 and form at least a partial region of the hopper chain 110 into a take-off section 150 adapted to contact the material 30.

Two tensioning sprockets 108 are located the lower part of extracting device, two tensioning sprockets 108 can with hopper chain 110 lower part stretches for a plurality of hoppers are when running here, can be in the state that the opening is forward, thereby make things convenient for a plurality of hoppers to get the material simultaneously, improve and get material efficiency.

Specifically, the reclaimer device further comprises a tensioning push rod 106 arranged between the two tensioning sprockets 108, adapted to keep the two tensioning sprockets 108 relatively far apart for tensioning the hopper chain 110. Thereby ensuring tensioning of the hopper chain 110 and maintaining the length of the take-out section 150.

Specifically, a lift section 120 adapted to lift the material 30 is formed between the end of the take-off section 150 and the drive sprocket 102.

The end of the material taking section 150 refers to the end of the hopper chain 110 that is in contact with the material 30 along the rotation direction of the hopper chain 110. Correspondingly, the head end of the material taking section 150 refers to the head end of the hopper chain 110 in a contact state with the material 30 along the rotation direction of the hopper chain 110.

Preferably, the material lifting section 120 in this embodiment is a straight section. By setting the lifting section 120 to be a straight line section, the hopper is always kept on a straight line, and the process of lifting the material is ensured to be stable.

Specifically, the hopper chain 110 changes the direction of the opening of the hopper 111 and completes discharging after bypassing the driving sprocket 102 from the tail end of the lifting section 120, a first redirecting sprocket 1051 is disposed between the driving sprocket 102 and the head end of the material taking section 150, the hopper chain 110 forms a first descending section 130 between the driving sprocket 102 and the first redirecting sprocket 1051, and forms a second descending section 140 between the first redirecting sprocket 1051 and the head end of the material taking section 150, and the second descending section 140 is disposed at an angle with respect to the first descending section 130.

Preferably, a first redirecting sprocket 1051 is disposed between the driving sprocket 102 and the head 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 disposed at an angle with respect to the first descending section 130, so that the hopper chain 110 is integrally configured in a substantially herringbone shape, that is, in the upper portion of the material taking device, the load lifted hopper and the empty lowered hopper are closer to each other, so that the upper portion of the material taking device is smaller in structure, and in the lower portion of the material taking device, after being redirected by the first redirecting sprocket 1051, the lifted hopper and the lowered hopper are separated from each other, and the lowered hopper is bent at an angle, so that the lower portion of the material taking device forms a triangle-like shape, so that the material taking section 150 is conveniently disposed.

Preferably, through adopting the extracting device of chevron shape, what take is that the force effect is than the positive mode of feeding of higher hopper bucket mouth sword line, in the bottom of chevron structure, in order to let the extracting arm dig the material of hatch coaming below, extracting device bottom sets up the extracting section 150 of enough length for the hopper can dig the material at the high speed of shipwidth direction, and efficiency improves greatly.

The traditional L-shaped material taking head is swept left and right to realize that materials enter the hopper, but the deep and narrow material taking device is not easy to unload cleanly during discharging, and the mode of rotary feeding is required to adopt the L-shaped material taking device and match with the deep and narrow hopper, so that rotary pile extrusion feeding is realized. The extracting device that this embodiment provided adopts the positive stub bar of getting of chevron shape structure, compares with traditional chain bucket ship unloader, and the structure is simpler, and the atress of whole extracting device bottom is more even simultaneously, and the cost is also lower.

Specifically, a second redirecting sprocket 1052 is disposed between the drive sprocket 102 and the first redirecting sprocket 1051, and the hopper chain 110 forms a discharge section 160 between the drive sprocket 102 and the second redirecting sprocket 1052.

Preferably, a hopper and other aggregate devices can be arranged at the position relatively below the discharging section 160, so that the subsequent transfer of materials is facilitated. By arranging the unloading section 160, the interference of the unloading hopper moving downwards to the full-load hopper needing to be unloaded can be reduced, and the efficient unloading action is ensured.

Preferably, a dust-proof cover 107 is further provided outside the hopper chain 110 to prevent dust. The hopper is exposed only in the lower portion of the reclaimer.

Because the rotary feeding mode that traditional chain bucket ship unloader used, the chain bucket need select the deep narrow type hopper just conveniently digs and gets, and the deep narrow type chain bucket is difficult to unload cleanly when unloading. The hopper of the embodiment can be set to be a wide and shallow hopper due to the front feeding mode, so that materials can be conveniently fed in and poured out.

The hopper chain 110 is formed by alternately connecting hoppers 111 and connecting plates 112, lug plates 114 are arranged at two ends of each hopper 111, shaft holes are formed in the lug plates 114, shaft holes are formed in the connecting plates 112, the lug plates 114 are hinged with the connecting plates 112 through pin shafts, and therefore all the hoppers are connected together to form the hopper chain.

The material taking device of the traditional chain bucket ship unloader adopts chain transmission, a material taking chain bucket is arranged between two chains, and a driving device drives the chains to drive the chain bucket to move. The transmission mode has higher requirements on the performance of the chain, the chain is easy to damage, the chain needs to be replaced regularly, and the maintenance cost is higher.

Preferably, in the material taking device provided in this embodiment, the hopper back plate 113 of the hopper 111 can directly participate in transmission, traditional chain transmission is cancelled, the connection plate is utilized to transmit with the hopper back plate, and each hopper is connected by the connection plate, so that the hopper becomes a part of the transmission. The hopper is not only a working mechanism when the material is excavated, but also a part of the hopper chain participates in transmission, so that the stress area is increased, and the reliability is improved.

Preferably, the drive sprocket and the redirection sprocket act on a connecting plate, the connecting plate is connected with a pin on the back plate, and the connecting plate is arranged outside the hopper, so that the connecting plate cannot interfere with the hopper during driving and redirection. The connecting plate is made of high-strength materials, so that reliability in driving and redirection is guaranteed.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (10)

1. A ship unloader with boom hoist system, comprising:

An arm support (601);

The material taking device is suitable for excavating materials and comprises a chain bucket arm, and the chain bucket arm is connected with the arm frame (601);

A portal (10) comprising a portal leg (11), the portal leg (11) being arranged on the side of the boom (601);

The arm support lifting system (600) comprises a gear (602), a rack (603) and a driving structure (604), wherein the rack (603) is arranged on the side part of the door leg (11) along the vertical direction, and the driving structure (604) is connected to the arm support (601), and the gear (602) is connected with the output end of the driving structure (604) and meshed with the rack (603);

The swing material taking assembly comprises a material taking device (100), a rotating shaft (103) and a swing mechanism (200), wherein the material taking device (100) is suitable for taking materials (30), the material taking device (100) is hinged to the arm support (601) through the rotating shaft (103), the material taking device (100) is suitable for swinging around the rotating shaft (103), the swing mechanism (200) is flexibly connected with a traction hinge point (206) of the material taking device (100), the swing mechanism (200) is suitable for traction of the material taking device (100) so that the material taking device (100) is maintained at a first preset position when no external force is applied, a vertical line passing through the center of gravity of the material taking device (100) is arranged at intervals with the axis center of the rotating shaft (103), and the moment of the material taking device (100) under the action of gravity enables the material taking device (100) to have a tendency of moving towards the land side direction.

2. The ship unloader with boom hoist system according to claim 1, characterized in that the boom hoist system (600) further comprises a speed reducer (605), the gear (602) being connected with the output of the drive structure (604) via the speed reducer (605).

3. The ship unloader with boom hoist system of claim 2, characterized in that the drive structure (604) is a drive motor.

4. A ship unloader with boom hoist system according to claim 2 or 3, characterized in that the rack (603) is arranged on the door leg (11) towards the side of the boom (601).

5. The ship unloader with boom hoist system according to claim 4, characterized in that the drive structure (604) and the speed reducer (605) are both connected to the top of the boom (601), the gear (602) being located above the boom (601).

6. The ship unloader with the arm support lifting system according to claim 5, wherein four door legs (11) are arranged on two sides of the arm support (601) in a rectangular shape, and the rack (603) is arranged on each door leg (11).

7. The ship unloader with boom hoist system according to claim 6, characterized in that the boom hoist system (600) further comprises a locking structure (606), the locking structure (606) being connected to the boom (601) for locking the boom (601) at the respective height of the door leg (11).

8. Ship unloader with boom hoist system according to claim 7, characterized in that at least one of the door legs (11) is provided with one of the locking structures (606) on each side for clamping the door leg (11) from both sides of the door leg (11).

9. Ship unloader with boom hoist system according to claim 8, characterized in that one locking structure (606) is provided on each side of each door leg (11).

10. Ship unloader with boom hoist system according to any of claims 7-9, characterized in that the locking structure (606) is a hydraulic ram and/or a rail clamp.