CN109368491B - Grab bucket for bridge type ship unloading device - Google Patents
Grab bucket for bridge type ship unloading device Download PDFInfo
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- CN109368491B CN109368491B CN201811227843.XA CN201811227843A CN109368491B CN 109368491 B CN109368491 B CN 109368491B CN 201811227843 A CN201811227843 A CN 201811227843A CN 109368491 B CN109368491 B CN 109368491B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/14—Grabs opened or closed by driving motors thereon
- B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
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- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a grab bucket for a bridge type ship unloading device, which comprises a grab bucket main body, a second hydraulic electric cylinder and a rotating motor, wherein the grab bucket main body is formed by two symmetrical grab bucket-shaped structures, and the top end of the side wall at the inner end of the grab bucket main body is rotationally connected to the left end and the right end of a connecting plate at the bottom of a PLC (programmable logic controller) machine body through a second rotating shaft; the PLC controller is characterized in that two symmetrical first hydraulic electric cylinders are vertically arranged in the middle of the PLC controller body, the bottom ends of the first hydraulic electric cylinders penetrate through the PLC controller body to be fixedly connected with a connecting plate at the bottom, and the top ends of the first hydraulic electric cylinders are fixedly connected with the bottom of the supporting top plate above the PLC controller body. The grab bucket for the bridge type ship unloader is comprehensively realized through the mutual matching of the various structures, and the grab bucket can be rotated by using the auxiliary rotating device main body when falling onto the ground, so that the angle adjustment is realized, the uncontrollable hidden danger of the rotation of the top crane of the turntable in the traditional realization is changed, and the safety coefficient is improved.
Description
Technical Field
The invention belongs to the technical field of ship unloading devices, and particularly relates to a grab bucket for a bridge type ship unloading device.
background
the grab bucket is a special tool for grabbing dry and scattered goods by a crane. Two or more openable bucket-shaped jaws are combined together to form an object containing space, the jaws are closed in a material pile during loading, materials are grabbed into the object containing space, the jaws are opened in a suspended state above the material pile during unloading, the materials are scattered on the material pile, and the opening and closing of the jaws are generally controlled by a steel wire rope of a crane hoisting mechanism. The grab operation has no heavy physical labor, can achieve higher loading and unloading efficiency and ensure safety, is a main loading and unloading tool for dry and bulk cargos in ports, for example, a single-rope grab which only has a single oil cylinder and controls the opening and closing of a multi-petal grab by a wireless remote control method in patent application CN201120434853.8, belongs to a crane; load hangers or devices for cranes, winches or trolleys. The method is characterized in that: the wireless remote control of grab bucket opens and close control system includes: the hydraulic system comprises a wireless remote control transmitter, a wireless remote control receiver and a storage battery which are arranged in a lower bearing beam, and an oil cylinder with a cylinder body, a piston rod and a piston, wherein the cylinder body is arranged on the lower bearing beam, the piston rod is connected with a sliding seat, a group of one-way valves for conducting oil from a rod cavity to a rodless cavity in a one-way mode are arranged on the piston of the oil cylinder, and the hydraulic system comprises an electromagnetic directional valve, a control valve, a two-way cartridge valve and a throttle valve. The invention has the following advantages: the structural requirement of the lower bolster of the single-cable wireless remote control multi-petal grab bucket with a small area can be met only by using the single oil cylinder, the structure is compact, the weight is reduced, no impact is generated when the grab bucket is opened and closed, and the adaptability of the use working condition of the grab bucket is wider.
Based on the above, the inventor finds that when the existing grab bucket and the grab bucket in the patent are used, the rotation adjustment angle is difficult to control due to the fact that the grab bucket is hoisted by the steel rope, the potential safety hazard caused by the rotation adjustment angle becomes an uncontrollable factor, and when the opening degree of the double crocodiles of the grab bucket is controlled, the opening degree is often too large through experience operation, and the replacement time of the grab bucket is accelerated in advance.
As another example, a rotatable hydraulic multi-petal grab bucket in patent application CN200720199372.7 belongs to a crane; load holding element or device for cranes, winches or trolleys. The hydraulic multi-clack grab bucket is characterized in that a hanger is arranged at the head of a boom of the excavator, the hanger is connected with a rotator provided with an oil pipe for rotation of the grab bucket and an oil pipe for opening and closing through a connecting pin shaft, and the lower end of a rotating shaft of the rotator is connected with the upper part of the hydraulic multi-clack grab bucket through a connecting bolt. The grab bucket can rotate to a proper position for loading and unloading according to the difference of the shape, size and weight of the goods, can grab or take more grabbed goods, can improve the loading and unloading efficiency of the grab bucket, and has wider applicability.
Although the above patent discloses the hanger auxiliary rotation, the weight of the hanger is limited, the weight of the hanger is increased, the angle of the hanger is difficult to control, and the vertical movement space of the grab bucket is limited when the hanger is connected to the upper frame.
Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a grab bucket for a bridge type ship unloader is provided, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides a grab bucket for a bridge type ship unloader, which aims to solve the problems that when the existing grab bucket and the grab bucket in the patent are used, the rotation adjusting angle is difficult to control due to the fact that the grab bucket is hoisted by a steel rope, the potential safety hazard caused by the rotation adjusting angle becomes an uncontrollable factor, and when the opening degree of double crocodiles of the grab bucket is controlled, the opening degree is often too large through empirical operation, and the replacement time of the grab bucket is accelerated in advance.
The invention is used for the purpose and the efficacy of the grab bucket of a bridge type ship unloading device, and is achieved by the following specific technical means:
A grab bucket for a bridge type ship unloading device comprises a grab bucket main body, a connecting arm, a folding protection plate, a PLC controller body, a first rotating shaft, a second rotating shaft, a supporting top plate, a hanging piece, a rotating device main body, an inner protection body, a T-shaped sliding rail, a movable body, a limiting block, a guide plate, a rotating shaft, a tooth socket, a wire walking plate, a rope hanging hook, a reinforcing column, a side protection plate, a cutting-in plate, a spring, a supporting bottom plate, a rotating head, a first hydraulic cylinder, a spiral connecting wire, a limiting device, a second hydraulic cylinder and a rotating motor, wherein the grab bucket main body is of a two-part symmetrical grab-groove-shaped structure, and the top end of the side wall of the inner end of the grab bucket main body is rotatably connected to the left end and the; two symmetrical first hydraulic cylinders are vertically arranged in the middle of the PLC controller body, the bottom ends of the first hydraulic cylinders penetrate through the PLC controller body and are fixedly connected with a connecting plate at the bottom, and the top ends of the first hydraulic cylinders are fixedly connected with the bottom of a supporting top plate above the PLC controller body; a hanging piece is fixedly and upwards arranged in the middle of the top plane of the supporting top plate, and a through hole communicated with the inside of the hanging piece is formed in the supporting top plate; first rotating shafts are arranged on the left end side and the right end side of the top of the supporting top plate, connecting arms are rotatably connected to two ends of each first rotating shaft, and the lower ends of the connecting arms are rotatably connected to two ends of the first rotating shaft, close to the inner end, of the top of the grab bucket main body; the top ends of the side walls of the left end and the right end of the grab bucket main body are both fixedly provided with a rotating device main body, and the center of the bottom of the rotating device main body is fixedly provided with a second hydraulic cylinder downwards; the movable end of the second hydraulic cylinder is fixedly connected to the center of the top plane of the movable body; a rotating motor is vertically arranged in the movable body, the bottom end of the rotating motor is rotatably connected with a rotating head, and the rotating head is arranged in a bottom plane of the movable body in a semi-hidden manner; the lower end of the inner groove of the grab bucket main body is rotatably connected with a rectangular cut-in plate through a rotating shaft, the inner plane of the bottom of the cut-in plate is fixedly connected with four springs positioned on the same straight line, and the bottom ends of the springs are fixedly connected to a wedge-shaped supporting bottom plate of the inner groove of the grab bucket main body; the top of the rotating device main body is connected with an L-shaped wiring plate, and the inner end of the wiring plate is fixedly connected to the PLC controller body; the center of the top of the PLC controller body is fixedly and upwards connected with a spiral connecting wire, and the spiral connecting wire penetrates through a hanging piece at the top; and a limiter is fixedly arranged on the top plane of the inner end of the grab bucket main body and is electrically connected with the PLC controller body.
Furthermore, a T-shaped sliding rail is longitudinally and fixedly arranged on the outer side vertical wall of the grab bucket main body, a groove matched with the T-shaped sliding rail is formed in the inner end plane of the movable body, and guide strips are vertically and fixedly arranged on the left side and the right side of the T-shaped sliding rail.
Furthermore, the outer side of the second hydraulic cylinder on the bottom plane of the rotating device main body is provided with a semicircular inner protection body, and the lower end of the inner protection body is inserted into the movable body.
Furthermore, the rotating head is composed of nine groups of arc-shaped strips, and three groups of arc-shaped guide plates are arranged on the movable bodies on two sides of the rotating head.
Furthermore, the tooth sockets are formed in the disks at the two ends of the rotating shaft, and the front side wall and the rear side wall of the movable body are vertically provided with limiting blocks which are matched with the tooth sockets in the rotating shaft.
Furthermore, when the cutting-in plate moves to the working height under the movable body, the lower end plane of the cutting-in plate is just level with the inclined plane of the grab bucket main body.
Furthermore, side guard plates with inclined surfaces below are arranged on the front side wall surface and the rear side wall surface of the grab bucket main body.
Furthermore, two parallel inverted-L-shaped rope hanging hooks are fixedly arranged at the top of the grab bucket main body, and a reinforcing column is connected between the two rope hanging hooks.
Furthermore, two parallels equal fixedly connected with folding backplate between the linking arm, and the fold of folding backplate is the downward sloping and offers the setting.
Compared with the prior art, the invention has the following beneficial effects:
The setting of interior sheath and rotating head in the rotary device main part, the outside of the planar second pneumatic cylinder of bottom through the rotary device main part is provided with the interior sheath of semicircle form, and interior sheath lower extreme is pegged graft in the movable body, thereby make interior sheath can protect the second pneumatic cylinder at the removal in-process of movable body, the in-process of avoiding unloading causes wearing and tearing to the second pneumatic cylinder, reduce the probability that the accessory was changed, and the rotating head constitutes for nine groups of cambered surface strips, and be provided with the deflector of three groups of arcuations again on the movable body of the both sides of rotating head, thereby make the rotating head when driving whole grab bucket and rotate, circular motion can be done, and then reach angle regulation's purpose, make whole grab bucket more convenient snatching the goods in the use.
The setting of the alveolus of axis of rotation and stopper, the alveolus has all been seted up on the disc at both ends through the axis of rotation, and the vertical stopper that suits with the alveolus of axis of rotation that just is provided with of lateral wall department around the activity body, thereby make the activity body can drive the axis of rotation when reciprocating, and cut into the board when the activity body shifts down to the operating height, the lower extreme plane of cutting into the board just with the inclined plane looks parallel and level of grab bucket main part, thereby make to cut into the board and shift back on the activity body, cut into the board and can move to grab bucket main part outer end under the combined action of alveolus and stopper, and then make and cut into the plate-type and become and cut into the face, it snatchs the bulk cargo more conveniently, and the setting of spring, can guarantee again to cut into the board resilience, and then.
The setting of stopper is fixed on the inner top plane through the grab bucket main part and is provided with the stopper, and when the grab bucket main part overturned horizontal furthest position, the oblique lateral wall of PLC controller organism can touch the stopper just to trigger stopper signals, make the control part signals of sending in the PLC controller organism make first pneumatic cylinder stop, form safety protection to whole device, realize more intelligent operation.
The grab bucket for the bridge type ship unloader is comprehensively realized through the mutual matching of the various structures, and the grab bucket can be rotated by using the auxiliary rotating device main body when falling onto the ground, so that the angle adjustment is realized, the uncontrollable hidden danger of the rotation of the top crane of the turntable in the traditional realization is changed, and the safety coefficient is improved.
Drawings
Fig. 1 is a schematic diagram of the right front axial view structure of the invention.
Fig. 2 is a schematic view of the enlarged portion of fig. 1 of the present invention.
Fig. 3 is a schematic diagram of the lower right axial view of the present invention.
Fig. 4 is a schematic view of the enlarged portion of fig. 3 of the present invention.
Fig. 5 is a schematic front view of the present invention.
FIG. 6 is a partial cross-sectional structural view of C-C of FIG. 5 of the present invention.
Fig. 7 is a schematic axial view of a portion of the non-folding shield of the present invention.
FIG. 8 is a schematic view of a portion of the rotary device body of the present invention without the inner sheath.
Fig. 9 is a schematic axial view showing the movable body in the raised state according to the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1-grab bucket body, 2-connecting arm, 201-folding guard plate, 3-PLC controller body, 4-first rotating shaft, 5-second rotating shaft, 6-supporting top plate, 7-hanging piece, 8-rotating device body, 801-inner protecting body, 802-T type sliding rail, 9-movable body, 901-limiting block, 902-guide plate, 10-rotating shaft, 1001-tooth socket, 11-wiring plate, 12-hanging rope hook, 1201-reinforcing column, 13-side guard plate, 14-cutting plate, 1401-spring, 1402-supporting bottom plate, 15-rotating head, 16-first hydraulic cylinder, 17-spiral connecting wire, 18-limiting block, 19-second hydraulic cylinder and 20-rotating motor.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like 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, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
example (b):
As shown in figures 1 to 9:
the invention provides a grab bucket for a bridge type ship unloading device, which comprises a grab bucket main body 1, a connecting arm 2, a folding guard plate 201, a PLC (programmable logic controller) machine body 3, a first rotating shaft 4, a second rotating shaft 5, a supporting top plate 6, a hanging part 7, a rotating device main body 8, an inner protection body 801, a T-shaped sliding rail 802, a movable body 9, a limiting block 901, a guide plate 902, a rotating shaft 10, a tooth groove 1001, a wiring plate 11, a rope hanging hook 12, a reinforcing column 1201, a side guard plate 13, a cutting plate 14, a spring 1401, a supporting bottom plate 1402, a rotating head 15, a first hydraulic cylinder 16, a spiral connecting wire 17, a limiting device 18, a second hydraulic cylinder 19 and a rotating motor 20, wherein the grab bucket main body 1 is formed by a two-part symmetrical grab groove-shaped structure, and the top end of the side wall at the inner end of the grab bucket main body 1 is rotatably connected to the left end; two symmetrical first hydraulic cylinders 16 are vertically arranged in the middle of the PLC controller body 3, the bottom ends of the first hydraulic cylinders 16 penetrate through the PLC controller body 3 to be fixedly connected with a connecting plate at the bottom, and the top ends of the first hydraulic cylinders 16 are fixedly connected with the bottom of the supporting top plate 6 above; a hanging piece 7 is fixedly and upwards arranged in the middle of the top plane of the supporting top plate 6, and a through hole communicated with the inside of the hanging piece 7 is formed in the supporting top plate 6; the left end and the right end of the top of the supporting top plate 6 are respectively provided with a first rotating shaft 4, the two ends of each first rotating shaft 4 are respectively and rotatably connected with a connecting arm 2, and the lower end of each connecting arm 2 is rotatably connected to the two ends of the first rotating shaft 4 close to the inner end of the top of the grab bucket main body 1; the top ends of the side walls of the left end and the right end of the grab bucket main body 1 are both fixedly provided with a rotating device main body 8, and the center of the bottom of the rotating device main body 8 is fixedly provided with a second hydraulic cylinder 19 downwards; the movable end of the second hydraulic cylinder 19 is fixedly connected to the center of the top plane of the movable body 9; a rotating motor 20 is vertically arranged in the movable body 9, the bottom end of the rotating motor 20 is rotatably connected with a rotating head 15, and the rotating head 15 is arranged in a bottom plane of the movable body 9 in a semi-hidden manner; the lower end of the internal groove of the grab bucket body 1 is rotatably connected with a rectangular cutting plate 14 through a rotating shaft 10, the inner plane of the bottom of the cutting plate 14 is fixedly connected with four springs 1401 which are positioned on the same straight line, and the bottom ends of the springs 1401 are fixedly connected with a wedge-shaped supporting bottom plate 1402 of the internal groove of the grab bucket body 1; the top of the rotating device main body 8 is connected to an L-shaped wiring board 11, and the inner end of the wiring board 11 is fixedly connected to the PLC controller body 3; the center of the top of the PLC controller body 3 is fixedly and upwardly connected with a spiral connecting wire 17, and the spiral connecting wire 17 penetrates through the hanging piece 7 at the top; and a stopper 18 is fixedly arranged on the top plane of the inner end of the grab bucket main body 1, and the stopper 18 is electrically connected with the PLC controller body 3.
The T-shaped sliding rail 802 is longitudinally and fixedly arranged on the vertical wall of the outer side of the grab bucket body 1, a groove matched with the T-shaped sliding rail 802 is formed in the plane of the inner end of the movable body 9, and guide strips are vertically and fixedly arranged on the left side and the right side of the T-shaped sliding rail 802, so that the movable body 9 can move up and down under the pushing of the second hydraulic cylinder 19 on the rotating device body 8.
Wherein, the outside of the planar second pneumatic cylinder 19 in bottom of rotary device main part 8 is provided with interior casing 801 of semicircle form, and interior casing 801 lower extreme pegs graft in movable body 9 to make interior casing 801 can protect second pneumatic cylinder 19 at the removal in-process of movable body 9, avoid the in-process of unloading to cause wearing and tearing to second pneumatic cylinder 19, reduce the probability that the accessory was changed.
The rotating head 15 is composed of nine groups of arc-shaped strips, and three groups of arc-shaped guide plates 902 are arranged on the movable bodies 9 on two sides of the rotating head 15, so that the rotating head 15 can move circularly when driving the whole grab bucket to rotate, and the purpose of adjusting the angle is achieved.
Wherein, alveolus 1001 has all been seted up on the disc at the both ends of axis of rotation 10, and lateral wall department is vertical just to be provided with stopper 901 that suits with alveolus 1001 on the axis of rotation 10 around movable body 9 to can drive axis of rotation 10 and rotate when making movable body 9 reciprocate.
When the cutting plate 14 moves down to the working height at the movable body 9, the lower end plane of the cutting plate 14 is just flush with the inclined plane of the grab bucket body 1, so that after the cutting plate 14 moves up to the movable body 9, the cutting plate 14 can move towards the outer end of the grab bucket body 1 under the combined action of the tooth grooves 1001 and the limiting blocks 901, and further the cutting plate 14 forms a cutting surface, so that the bulk material can be grabbed more conveniently.
Wherein, all be provided with the side guard plate 13 that the below is the inclined plane on the preceding lateral wall face of grab bucket main part 1 and the rear wall face to make grab bucket main part 1 snatch the material more easily, reduce the resistance.
The top of the grab bucket body 1 is fixedly provided with two parallel inverted-L-shaped rope hanging hooks 12, and a reinforcing column 1201 is connected between the two rope hanging hooks 12, so that the rope hanging hooks 12 can hang heavy objects, the practicability of the grab bucket is improved, and the complexity of replacing different grab buckets is reduced.
Wherein, two parallels all fixedly connected with folding backplate 201 between connecting arm 2, and folding backplate 201's fold is the downward sloping and offers the setting to make folding backplate 201 when protecting inside electrical components, can reduce the accumulation of daily dust again.
The specific use mode and function of the embodiment are as follows:
In the invention, a lifting piece 7 is connected with a bridge type ship unloading device through a steel wire rope, a controller in a PLC controller body 3 controls a first hydraulic cylinder 16 to pull the PLC controller body 3 to ascend, so that the inner end of a grab bucket main body 1 ascends, a first rotating shaft 4 at the lower end of a connecting arm 2 rotates as a rotating center, and further closing is realized, a folding protection plate 201 is fixedly connected between two parallel connecting arms 2, folds of the folding protection plate 201 are obliquely downwards arranged, so that the folding protection plate 201 can reduce daily dust accumulation while protecting internal electrical components, a T-shaped slide rail 802 is longitudinally and fixedly arranged on the vertical wall on the outer side of the grab bucket main body 1, a groove matched with the T-shaped slide rail 802 is formed in the plane of the inner end of a movable body 9, and guide strips are vertically and fixedly arranged on the left side and the right side of the T-shaped slide rail 802, so that the movable body 9 can move up and down under the pushing of the second hydraulic cylinder 19 on the rotating device main body 8, and the outer side of the second hydraulic cylinder 19 on the bottom plane of the rotating device main body 8 is provided with a semicircular inner protection body 801, and the lower end of the inner protection body 801 is inserted into the movable body 9, so that the inner protection body 801 can protect the second hydraulic cylinder 19 in the moving process of the movable body 9, avoid abrasion to the second hydraulic cylinder 19 in the unloading process, reduce the probability of replacement of accessories, the rotating head 15 is composed of nine groups of arc strips, and three groups of arc guide plates 902 are arranged on the movable body 9 on both sides of the rotating head 15, so that the rotating head 15 can do circular motion when driving the whole grab bucket to rotate, and further achieve the purpose of adjusting the angle, tooth slots 1001 are arranged on the disks at both ends of the rotating shaft 10, and the front and back side walls of the movable body 9 are vertically provided with a limiting block 901 which is just suitable for the tooth slots on the rotating shaft 10, thereby make activity body 9 can drive axis of rotation 10 when reciprocating and rotate, when cut into board 14 and move down working height at activity body 9, the lower extreme plane of cut into board 14 is just mutually the parallel and level with the inclined plane of grab bucket main part 1, thereby make cut into board 14 and move the back on activity body 9, cut into board 14 and can move to grab bucket main part 1 outer end under the combined action of alveolus 1001 and stopper 901, and then make cut into board 14 and form and cut into the face, it snatchs the bulk cargo more conveniently.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. A grab bucket for a bridge type ship unloading device is characterized in that: the grab bucket for the bridge type ship unloading device comprises a grab bucket main body, a connecting arm, a folding protection plate, a PLC (programmable logic controller) machine body, a first rotating shaft, a second rotating shaft, a supporting top plate, a hanging piece, a rotating device main body, an inner protection body, a T-shaped sliding rail, a movable body, a limiting block, a guide plate, a rotating shaft, a tooth socket, a wire walking plate, a rope hanging hook, a reinforcing column, a side protection plate, a cutting plate, a spring, a supporting bottom plate, a rotating head, a first hydraulic cylinder, a spiral connecting wire, a limiting stopper, a second hydraulic cylinder and a rotating motor, wherein the grab bucket main body is formed by a two-part symmetrical grab groove-shaped structure, and the top end of the side wall of the inner end of the grab bucket main body is rotatably connected to; two symmetrical first hydraulic cylinders are vertically arranged in the middle of the PLC controller body, the bottom ends of the first hydraulic cylinders penetrate through the PLC controller body and are fixedly connected with a connecting plate at the bottom, and the top ends of the first hydraulic cylinders are fixedly connected with the bottom of a supporting top plate above the PLC controller body; a hanging piece is fixedly and upwards arranged in the middle of the top plane of the supporting top plate, and a through hole communicated with the inside of the hanging piece is formed in the supporting top plate; first rotating shafts are arranged on the left end side and the right end side of the top of the supporting top plate, connecting arms are rotatably connected to two ends of each first rotating shaft, and the lower ends of the connecting arms are rotatably connected to two ends of the first rotating shaft, close to the inner end, of the top of the grab bucket main body; the top ends of the side walls of the left end and the right end of the grab bucket main body are both fixedly provided with a rotating device main body, and the center of the bottom of the rotating device main body is fixedly provided with a second hydraulic cylinder downwards; the movable end of the second hydraulic cylinder is fixedly connected to the center of the top plane of the movable body; a rotating motor is vertically arranged in the movable body, the bottom end of the rotating motor is rotatably connected with a rotating head, and the rotating head is arranged in a bottom plane of the movable body in a semi-hidden manner; the lower end of the inner groove of the grab bucket main body is rotatably connected with a rectangular cut-in plate through a rotating shaft, the inner plane of the bottom of the cut-in plate is fixedly connected with four springs positioned on the same straight line, and the bottom ends of the springs are fixedly connected to a wedge-shaped supporting bottom plate of the inner groove of the grab bucket main body; the top of the rotating device main body is connected with an L-shaped wiring plate, and the inner end of the wiring plate is fixedly connected to the PLC controller body; the center of the top of the PLC controller body is fixedly and upwards connected with a spiral connecting wire, and the spiral connecting wire penetrates through a hanging piece at the top; and a limiter is fixedly arranged on the top plane of the inner end of the grab bucket main body and is electrically connected with the PLC controller body.
2. The grab bucket for bridge ship unloader of claim 1, wherein: t-shaped sliding rails are longitudinally and fixedly arranged on the vertical wall of the outer side of the grab bucket main body, grooves matched with the T-shaped sliding rails are formed in the inner end plane of the movable body, and guide strips are vertically and fixedly arranged on the left side and the right side of each T-shaped sliding rail.
3. The grab bucket for bridge ship unloader of claim 1, wherein: the outer side of the second hydraulic cylinder on the bottom plane of the rotating device main body is provided with a semicircular inner protection body, and the lower end of the inner protection body is inserted into the movable body.
4. The grab bucket for bridge ship unloader of claim 1, wherein: the rotating head is composed of nine groups of arc-shaped strips, and three groups of arc-shaped guide plates are arranged on the movable bodies on two sides of the rotating head.
5. the grab bucket for bridge ship unloader of claim 1, wherein: the alveolus has all been seted up on the disc at the both ends of axis of rotation, and lateral wall department is vertical just to be provided with the stopper that suits with the alveolus in the axis of rotation around the activity body.
6. The grab bucket for bridge ship unloader of claim 1, wherein: when the cutting-in plate moves to the working height under the movable body, the lower end plane of the cutting-in plate is just level with the inclined plane of the grab bucket main body.
7. the grab bucket for bridge ship unloader of claim 1, wherein: when the cutting-in plate moves to the working height under the movable body, the lower end plane of the cutting-in plate is just level with the inclined plane of the grab bucket main body.
8. The grab bucket for bridge ship unloader of claim 1, wherein: the grab bucket comprises a grab bucket body and is characterized in that two parallel inverted-L-shaped rope hanging hooks are fixedly arranged at the top of the grab bucket body, and reinforcing columns are connected between the two rope hanging hooks.
9. The grab bucket for bridge ship unloader of claim 1, wherein: two parallels equal fixedly connected with folding backplate between the linking arm, and the fold of folding backplate is the downward sloping and offers the setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811227843.XA CN109368491B (en) | 2018-10-22 | 2018-10-22 | Grab bucket for bridge type ship unloading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811227843.XA CN109368491B (en) | 2018-10-22 | 2018-10-22 | Grab bucket for bridge type ship unloading device |
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| Publication Number | Publication Date |
|---|---|
| CN109368491A CN109368491A (en) | 2019-02-22 |
| CN109368491B true CN109368491B (en) | 2019-12-13 |
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| CN201811227843.XA Active CN109368491B (en) | 2018-10-22 | 2018-10-22 | Grab bucket for bridge type ship unloading device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873253B (en) * | 2021-01-15 | 2024-08-13 | 河北工业大学 | Bulk cargo grabbing device, working mode and application |
| CN113235679A (en) * | 2021-06-17 | 2021-08-10 | 山东山特重工机械有限公司 | Rotary grab excavator |
| CN115724243B (en) * | 2022-12-21 | 2024-09-06 | 杭州华新机电工程有限公司 | Improved automatic grabbing system and process for ship unloader |
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| US3877743A (en) * | 1973-06-25 | 1975-04-15 | Norman Allen Johnson | Fluid operated grapple |
| US4542929A (en) * | 1983-09-01 | 1985-09-24 | Possinger Warren K | Articulating clam type grapple for a backhoe |
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Also Published As
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|---|---|
| CN109368491A (en) | 2019-02-22 |
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