CN111847233A

CN111847233A - Rotary-cut formula grab bucket device

Info

Publication number: CN111847233A
Application number: CN202010765159.8A
Authority: CN
Inventors: 王广妍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2020-10-30

Abstract

The invention relates to the technical field of grabbing tools, in particular to a rotary-cut type grab bucket device. The grabbing range of the grab bucket for grabbing the goods can be adjusted. The large-opening adjusting mechanism comprises a diameter large-opening adjusting mechanism, a combined grab bucket mechanism, a rotary cutting mechanism, a rotary driving mechanism, a horizontal balance mechanism and a follow-up covering protection mechanism, a large-opening motor drives a driving bevel gear to rotate, the driving bevel gear drives a plurality of follow-up bevel gears to rotate, the plurality of follow-up bevel gears respectively drive a plurality of rotating screw rods to rotate so that the combined grab bucket mechanisms move, the grabbing range and the grabbing capacity of the combined grab bucket mechanisms are changed, corresponding adjustment is carried out according to the demand of single grabbing as required, the rotary cutting mechanism drives the diameter large-opening adjusting mechanism and the combined grab bucket mechanisms to rotate together, goods and external adhesion parts of the combined grab bucket mechanisms are cut off in a rotating mode, and therefore the danger that the adhesion objects on the goods fall off due to the fact that the adhesion objects are not located in the combined grab bucket mechanisms is avoided.

Description

Rotary-cut formula grab bucket device

Technical Field

The invention relates to the technical field of grabbing tools, in particular to a rotary-cut type grab bucket 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 bucket operation has no heavy physical labor, can achieve higher loading and unloading efficiency and ensure safety, and is a main dry bulk cargo loading and unloading tool for ports. According to the types of operation goods, the operation goods can be divided into an ore grab bucket, a coal grab bucket, a grain grab bucket, a wood grab bucket and the like; but the grab bucket that prior art produced, its size is fixed, and the snatching range of snatching the goods can't adjust.

Disclosure of Invention

The invention provides a rotary cutting type grab bucket device which has the beneficial effect that the stable fire ladder can adjust the grabbing range of the grab bucket for grabbing goods.

The invention relates to the technical field of grabbing tools, in particular to a rotary-cut type grab bucket device which comprises a plurality of diameter wide-opening adjusting mechanisms, a combined grab bucket mechanism, a rotary cutting mechanism, a rotary driving mechanism, a horizontal balancing mechanism and a follow-up covering protection mechanism.

As a further optimization of the technical scheme, the diameter wide-open adjusting mechanism of the rotary-cut grab bucket device comprises a polygonal limiting block, wide-open slideways, a rotating lead screw, a following bevel gear, a wide-open motor and a driving bevel gear, wherein the polygonal limiting block is provided with a plurality of wide-open slideways, the rotating lead screws are respectively and rotatably connected into the wide-open slideways, the following bevel gears are respectively and fixedly connected onto the rotating lead screws, the driving bevel gear is fixedly connected onto an output shaft of the wide-open motor, the wide-open motor is fixedly connected onto the polygonal limiting block, and the following bevel gears are in meshing transmission with the driving bevel gear.

As a further optimization of the technical scheme, the combined grab bucket mechanism of the rotary-cut grab bucket device comprises an i-shaped connecting beam, a threaded sliding sleeve, a hydraulic cylinder and a grab bucket combined blade, wherein the top end of the grab bucket combined blade is rotatably connected to the bottom end of the i-shaped connecting beam, the top end of the i-shaped connecting beam is provided with the threaded sliding sleeve, the hydraulic cylinder is rotatably connected to the top end of the i-shaped connecting beam and the middle part of the grab bucket combined blade, the plurality of threaded sliding sleeves are respectively connected to the plurality of rotating lead screws through threads, and the plurality of threaded sliding sleeves are respectively connected to the plurality of wide-open slideways in a.

As a further optimization of the technical solution, the rotary cutting mechanism of the rotary-cut grab bucket device of the present invention includes a rotary sliding platform, a T-shaped sliding ring and a rotary follower shaft, wherein the rotary follower shaft is fixedly connected to the middle of the rotary sliding platform, the rotary sliding platform is fixedly connected to the rotary sliding platform, the rotary follower shaft is located on the central axis of the T-shaped sliding ring, the T-shaped sliding ring is slidably connected to the rotary driving mechanism, and a multi-side limiting block is fixedly connected to the bottom end of the rotary sliding platform.

As a further optimization of the technical scheme, the rotary driving mechanism of the rotary-cut grab bucket device of the invention comprises a hanging disc, a rotary driving motor and a T-shaped annular slideway, wherein the T-shaped annular slideway is arranged at the bottom end of the hanging disc, the rotary driving motor is fixedly connected to a central axis of the rotary driving motor, the T-shaped sliding annular is slidably connected to the T-shaped annular slideway, a rotary follow-up shaft is rotatably connected to the bottom end of the hanging disc, and the rotary follow-up shaft is fixedly connected to an output shaft of the rotary driving motor.

As a further optimization of the technical scheme, the horizontal balance mechanism of the rotary-cut grab bucket device comprises a horizontal suspension plate, an external suspension, a plurality of universal rotating balls, a rotating ball sleeve, a bottom connecting plate and a plurality of buffer springs, wherein the upper end and the lower end of each of the plurality of buffer springs are respectively and fixedly connected to the horizontal suspension plate and the bottom connecting plate, the external suspension is fixedly connected to the top end of the horizontal suspension plate, the universal rotating balls are fixedly connected to the bottom end of the horizontal suspension plate, the rotating ball sleeve is fixedly connected to the middle of the top end of the bottom connecting plate, the universal rotating balls are slidably connected into the universal rotating balls, and a suspension disc is fixedly connected to the bottom end of the bottom connecting plate.

As a further optimization of the technical scheme, the follow-up covering protection mechanism of the rotary-cut grab bucket device comprises a circular connecting plate, an upper limiting shaft, a lower limiting shaft, a bottom covering plate, a sliding shaft sleeve, a reset tension spring and a folding covering umbrella, wherein the top end of the folding covering umbrella is fixedly connected to the bottom end of the sliding shaft sleeve, the sliding shaft sleeve is slidably connected to the upper limiting shaft and the lower limiting shaft, the top end of the upper limiting shaft and the top end of the lower limiting shaft are fixedly connected to the bottom end of a polygonal limiting block, the bottom covering plate is fixedly connected to the bottom end of the upper limiting shaft and the bottom end of the folding covering umbrella is fixedly connected to a plurality of i-shaped connecting beams, the folding covering umbrella is located among the plurality of i-shaped connecting beams, the top end of the sliding shaft sleeve is fixedly connected to.

As a further optimization of the technical scheme, the plurality of hydraulic oil cylinders of the rotary cutting type grab bucket device realize synchronous starting.

As a further optimization of the technical scheme, the wide-open motor and the rotary driving motor of the rotary-cut grab bucket device are both provided with band-type brakes.

The rotary cutting type grab bucket device has the beneficial effects that:

the rotary cutting type grab bucket device can drive the combined grab bucket mechanisms to move through the wide-open motor, so that the combined grab bucket mechanisms are simultaneously far away or close to change the distance between the combined grab bucket mechanisms, the diameter range which can be grabbed by the combined grab bucket mechanisms is changed, the size of the grabbing volume is changed, and the corresponding adjustment can be carried out according to the required quantity of single grabbing; the rotary cutting mechanism and the combined grab bucket mechanisms can be driven to rotate through the rotary driving motor, so that the combined grab bucket mechanisms rotate after grabbing goods, the adhesion parts of the goods and the outside of the combined grab bucket mechanisms are rotationally cut off, adhesion objects on the goods are prevented from leaking to the outside of the combined grab bucket mechanisms in the processes of grabbing, lifting and moving the goods, and the danger that the adhesion objects on the goods fall off because the adhesion objects are not positioned in the combined grab bucket mechanisms is avoided; meanwhile, the foldable covering umbrella can be driven by the combined grab bucket mechanisms to cover the goods from the upper side, so that the problem that when the goods are grabbed by the combined grab bucket mechanisms, the goods scattered by the ore, the coal, the grain and the like fall down from gaps above the combined grab bucket mechanisms to pollute the environment is avoided.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of a rotary cutting type grab bucket device of the present invention.

Fig. 2 is a schematic structural view of a rotary cutting type grab bucket device in another direction.

Fig. 3 is a schematic structural diagram of the diameter expansion adjusting mechanism.

Fig. 4 is a schematic structural view of the diameter expansion adjusting mechanism in another direction.

Fig. 5 is a schematic structural diagram of the combined grab bucket mechanism.

Fig. 6 is a schematic structural view of the rotary cleaving mechanism.

Fig. 7 is a schematic structural view of the rotation driving mechanism.

Fig. 8 is a schematic structural view of the horizontal balancing mechanism.

Fig. 9 is a schematic structural view of the follow-up cover guard mechanism.

In the figure: a diameter widening adjusting mechanism 1; a polygonal limited block 1-1; a wide-open slideway 1-2; rotating the screw rod 1-3; 1-4 of a follow-up bevel gear; 1-5 of a wide-open motor; 1-6 of a drive bevel gear; a combined grab bucket mechanism 2; 2-1 of an I-shaped connecting beam; 2-2 of a threaded sliding sleeve; 2-3 parts of a hydraulic oil cylinder; 2-4 of grab bucket combined blades; a rotary cutting mechanism 3; a rotary sliding platform 3-1; 3-2 of a T-shaped sliding ring; rotating the follow-up shaft 3-3; a rotation drive mechanism 4; a hanging disc 4-1; a rotary drive motor 4-2; 4-3 of a T-shaped circular slideway; a horizontal balancing mechanism 5; 5-1 of a horizontal suspension plate; 5-2 of external suspension; 5-3 of universal rotating ball; rotating the ball sleeve 5-4; 5-5 of a bottom connecting plate; 5-6 parts of buffer spring; a servo-actuated covering protection mechanism 6; a circular connecting plate 6-1; an upper limiting shaft 6-2 and a lower limiting shaft 2; a bottom cover 6-3; 6-4 of a sliding shaft sleeve; 6-5 of a reset tension spring; folding covering umbrella 6-6.

Detailed Description

The first embodiment is as follows:

the present invention relates to the technical field of gripping tools, and more particularly to a rotary cutting type grab bucket device, which is described below with reference to fig. 1 to 9, and includes a diameter expansion adjusting mechanism 1, a combined grab bucket mechanism 2, a rotary cutting mechanism 3, a rotary driving mechanism 4, a horizontal balancing mechanism 5, and a follow-up covering protection mechanism 6, and is characterized in that: modular grab bucket mechanism 2 be provided with a plurality ofly, the equal sliding connection of a plurality of modular grab bucket mechanisms 2 is on the diameter is wide opens adjustment mechanism 1, the diameter is wide opens adjustment mechanism 1 fixed connection and is in 3 bottoms of rotatory mechanism of cutting off, rotatory mechanism 3 sliding connection of cutting off is on rotary driving mechanism 4, rotary driving mechanism 4 fixed connection is in 5 bottoms of horizontal balance mechanism, 6 fixed connection of follow-up cover protection machanism are on the diameter is wide opens adjustment mechanism 1 and a plurality of modular grab bucket mechanisms 2, a plurality of modular grab bucket mechanisms 2 are all wide opens adjustment mechanism 1 with the diameter and pass through threaded connection.

The rotary cutting type grab bucket device is connected with a crane through a horizontal balance mechanism 5, a diameter wide-opening adjusting mechanism 1 drives a plurality of combined grab bucket mechanisms 2 to be close to or far away from each other at the same time, so that the grabbing range of a grab bucket formed by the combined grab bucket mechanisms 2 is changed, the grabbing capacity is changed at the same time, meanwhile, the combined grab bucket mechanisms 2 drive a follow-up covering protection mechanism 6 to move, the follow-up covering protection mechanism 6 always covers the top end of the grab bucket formed by the combined grab bucket mechanisms 2, when grabbing scattered objects such as ore, coal, grain and the like, the scattered objects such as ore, coal, grain and the like are covered from the upper part of the combined grab bucket mechanisms, the scattered objects such as ore, coal, grain and the like are prevented from falling from gaps above the grab bucket formed by the combined grab bucket mechanisms 2, the pollution to the environment is avoided, and meanwhile, a rotary cutting mechanism 3 is driven by a rotary driving mechanism 4 to rotate, the rotary cutting mechanism 3 drives the diameter widening adjusting mechanism 1 and the combined grab bucket mechanisms 2 to rotate together, so that the adhesion parts of the goods and the outside of the combined grab bucket mechanisms 2 are rotationally cut off, the falling danger caused by the fact that the adhesion objects on the goods are not located in the combined grab bucket mechanisms 2 is avoided, for example, when earth is grabbed, plant roots in the earth are adhered to the earth and exposed to the outside of the combined grab bucket mechanisms 2, and the falling hidden danger exists in the lifting and moving processes; the position of the focus skew of goods in a plurality of combination formula grab bucket mechanisms 2 makes a plurality of combination formula grab bucket mechanisms 2 not be in vertical state and the slope appears, the diameter is wide opens adjustment mechanism 1 and can be after a plurality of combination formula grab bucket mechanisms 2 snatch the goods, remain the level throughout, make the hoist and the diameter wide opens adjustment mechanism 1 junction remain stable, the potential safety hazard that the atress inequality and the atress position that have avoided traditional grab bucket and hoist junction to cause because the grab bucket slope change and lead to and the decline of grab bucket and hoist junction life.

The second embodiment is as follows:

the embodiment is described below with reference to fig. 1-9, and the embodiment further describes the first embodiment, where the diameter wide-open adjusting mechanism 1 includes a multi-edge limiting block 1-1, a wide-open slideway 1-2, a rotating screw rod 1-3, a follower bevel gear 1-4, a wide-open motor 1-5, and a drive bevel gear 1-6, the multi-edge limiting block 1-1 is provided with a plurality of wide-open slideways 1-2, the plurality of rotating screw rods 1-3 are respectively rotatably connected to the plurality of wide-open slideways 1-2, the plurality of follower bevel gears 1-4 are respectively fixedly connected to the plurality of rotating screw rods 1-3, the drive bevel gear 1-6 is fixedly connected to an output shaft of the wide-open motor 1-5, the wide-open motor 1-5 is fixedly connected to the multi-edge limiting block 1-1, the plurality of follow-up bevel gears 1-4 are in meshing transmission with the driving bevel gears 1-6.

The wide-open motor 1-5 drives the driving bevel gear 1-6 to rotate, the driving bevel gear 1-6 drives the plurality of follow-up bevel gears 1-4 to rotate, and the plurality of follow-up bevel gears 1-4 respectively drive the plurality of rotating screw rods 1-3 to rotate, so that the plurality of combined grab bucket mechanisms 2 move, and power is provided for the plurality of combined grab bucket mechanisms 2 to change the grabbing range and the grabbing volume.

The third concrete implementation mode:

the embodiment is described below with reference to fig. 1-9, and the embodiment further describes a second embodiment, where the combined grab bucket mechanism 2 includes an i-shaped connection beam 2-1, a threaded sliding sleeve 2-2, a hydraulic cylinder 2-3, and a grab bucket combination blade 2-4, the top end of the grab bucket combination blade 2-4 is rotatably connected to the bottom end of the i-shaped connection beam 2-1, the top end of the i-shaped connection beam 2-1 is provided with the threaded sliding sleeve 2-2, the hydraulic cylinder 2-3 is rotatably connected to the top end of the i-shaped connection beam 2-1 and the middle part of the grab bucket combination blade 2-4, the plurality of threaded sliding sleeves 2-2 are respectively connected to the plurality of rotating screw rods 1-3 through threads, and the plurality of threaded sliding sleeves 2-2 are respectively slidably connected to the plurality of wide-open slideways 1.

When the plurality of rotary screw rods 1-3 rotate, the plurality of threaded sliding sleeves 2-2 can be driven to slide in the plurality of wide-open slideways 1-2 respectively, the plurality of threaded sliding sleeves 2-2 enable the plurality of I-shaped connecting beams 2-1 to drive the plurality of grab bucket combined blades 2-4 to be close to or far away from each other, the plurality of grab bucket combined blades 2-4 change the distance between the plurality of grab bucket combined blades, the range of grabbing goods and the grabbing capacity of the formed grab bucket are changed, and accordingly corresponding adjustment is achieved according to the required quantity of single grabbing.

The fourth concrete implementation mode:

the third embodiment is further described with reference to fig. 1-9, where the rotary cutting mechanism 3 includes a rotary sliding platform 3-1, a T-shaped sliding ring 3-2 and a rotary follow-up shaft 3-3, the rotary follow-up shaft 3-3 is fixedly connected to the middle of the rotary sliding platform 3-1, the rotary sliding platform 3-1 is fixedly connected to the rotary sliding platform 3-1, the rotary follow-up shaft 3-3 is located on the central axis of the T-shaped sliding ring 3-2, the T-shaped sliding ring 3-2 is slidably connected to the rotary driving mechanism 4, and the polygonal limit block 1-1 is fixedly connected to the bottom end of the rotary sliding platform 3-1.

The fifth concrete implementation mode:

the fourth embodiment is further described with reference to fig. 1-9, where the rotary driving mechanism 4 includes a suspension disk 4-1, a rotary driving motor 4-2, and a T-shaped ring slideway 4-3, the bottom end of the suspension disk 4-1 is provided with the T-shaped ring slideway 4-3, the rotary driving motor 4-2 is fixedly connected to the central axis of the rotary driving motor 4-2, the T-shaped sliding ring 3-2 is slidably connected to the T-shaped ring slideway 4-3, the rotary follower shaft 3-3 is rotatably connected to the bottom end of the suspension disk 4-1, and the rotary follower shaft 3-3 is fixedly connected to the output shaft of the rotary driving motor 4-2.

The rotary driving motor 4-2 drives the rotary follow-up shaft 3-3 to rotate, so that the T-shaped sliding ring 3-2 rotates coaxially with the rotary follow-up shaft 3-3 in the T-shaped ring slideway 4-3, the rotary follow-up shaft 3-3 and the T-shaped sliding ring 3-2 drive the rotary sliding platform 3-1 to rotate, so that the rotary sliding platform 3-1 drives the polygonal limiting block 1-1 to rotate and the rotary screw rods 1-3 to rotate, the rotary screw rods 1-3 drive the threaded sliding sleeves 2-2 and the I-shaped connecting beams 2-1 to rotate, the I-shaped connecting beams 2-1 drive the grab bucket combined blades 2-4 to rotate, the grab bucket combined blades 2-4 rotate after grabbing goods, and the external adhesion part between the goods and the grab bucket combined blades 2-4 is rotationally disconnected, the danger that the adhesion objects on the goods fall off because the adhesion objects are not positioned in the grab bucket combined blades 2-4 is avoided, for example, when the adhesion objects are grabbed, plant roots in the soil can be adhered to the soil and are exposed outside the grab bucket combined blades 2-4, the falling hidden danger exists in the hoisting and moving processes, and the pollution to the environment and the workers below can be injured by crashing objects at the same time.

The sixth specific implementation mode:

the embodiment is described below with reference to fig. 1-9, and the fifth embodiment is further described in the present embodiment, where the horizontal balancing mechanism 5 includes a plurality of horizontal suspension plates 5-1, external suspension 5-2, universal rotating balls 5-3, rotating ball sleeves 5-4, a bottom connecting plate 5-5, and buffer springs 5-6, the buffer springs 5-6 are provided, upper and lower ends of the plurality of buffer springs 5-6 are respectively and fixedly connected to the horizontal suspension plate 5-1 and the bottom connecting plate 5-5, the external suspension 5-2 is fixedly connected to the top end of the horizontal suspension plate 5-1, the universal rotating ball 5-3 is fixedly connected to the bottom end of the horizontal suspension plate 5-1, the rotating ball sleeves 5-4 are fixedly connected to the middle portion of the top end of the bottom connecting plate 5-5, and the universal rotating ball 5-3 is slidably connected to the universal rotating ball 5-3, the hanging disc 4-1 is fixedly connected with the bottom end of the bottom connecting plate 5-5.

When goods are grabbed by the plurality of grab bucket combination blades 2-4, the goods are not in a vertical state but are inclined in the plurality of grab bucket combination blades 2-4 when the goods are inclined or the gravity center of the goods is not consistent with that of the plurality of grab bucket combination blades 2-4, the plurality of grab bucket combination blades 2-4 drive the plurality of I-shaped connecting beams 2-1 to incline, the plurality of I-shaped connecting beams 2-1 drive the polygonal limiting blocks 1-1 to incline, the polygonal limiting blocks 1-1 drive the rotary cutting mechanism 3 and the rotary driving mechanism 4 to incline, the suspension disc 4-1 in the rotary driving mechanism 4 inclines to drive the bottom connecting plate 5-5 to incline, and the bottom connecting plate 5-5 is influenced by the inclination direction through the plurality of buffer springs 5-6, the corresponding buffer spring 5-6 is compressed by the bottom connecting plate 5-5 and the horizontal suspension plate 5-1, and meanwhile, the bottom connecting plate 5-5 can drive the rotating ball sleeve 5-4 to rotate on the surface of the universal rotating ball 5-3, so that the joint of the crane and the external suspension 5-2 is kept stable when the bottom connecting plate 5-5 inclines, and potential safety hazards and the reduction of the service life of the joint of the external suspension 5-2 and the crane, which are caused by uneven stress and change of stress positions of the joint of the external suspension 5-2 and the crane, are avoided.

The seventh embodiment:

the following description of the present embodiment is made with reference to fig. 1 to 9, and the sixth embodiment is further described, where the follow-up covering protection mechanism 6 includes a circular connecting plate 6-1, upper and lower limiting shafts 6-2, a bottom covering plate 6-3, a sliding shaft sleeve 6-4, a restoring tension spring 6-5 and a folding covering umbrella 6-6, the top end of the folding covering umbrella 6-6 is fixedly connected to the bottom end of the sliding shaft sleeve 6-4, the sliding shaft sleeve 6-4 is slidably connected to the upper and lower limiting shafts 6-2, the top end of the upper and lower limiting shafts 6-2 is fixedly connected to the circular connecting plate 6-1, the circular connecting plate 6-1 is fixedly connected to the bottom end of the polygonal limiting block 1-1, the bottom covering plate 6-3 is fixedly connected to the bottom ends of the upper and lower limiting shafts 6-2, the bottom end of the folding covering umbrella 6-6 is fixedly connected to a, the folding covering umbrella 6-6 is positioned among the I-shaped connecting beams 2-1, the top end of the sliding shaft sleeve 6-4 is fixedly connected to the bottom end of the reset tension spring 6-5, and the top end of the reset tension spring 6-5 is fixedly connected to the bottom end of the circular connecting plate 6-1.

When the I-shaped connecting beams 2-1 move away from each other, the I-shaped connecting beams 2-1 drive the folding covering umbrella 6-6 to open, the folding covering umbrella 6-6 drives the sliding shaft sleeve 6-4 to slide and descend on the upper limiting shaft 6-2 and the lower limiting shaft 6-2 stretches the reset tension spring 6-5 at the moment, so that the folding covering umbrella 6-6 covers the goods from the upper part, the situation that when the scattered objects such as ores, coal, grains and the like are grabbed, the scattered objects such as the ores, the coal, the grains and the like overflow from the upper part of the grab bucket combined blades 2-4 or fall from gaps above to pollute the environment is avoided, when the I-shaped connecting beams 2-1 move close to each other, the reset tension spring 6-5 pulls the upper limiting shaft 6-2 to move upwards, the upper limiting shaft 6-2 drives the top end of the folding covering umbrella 6-6 to move upwards, the folding covering umbrella 6-6 is folded and folded, and when the goods are grabbed, the bottom covering plate 6-3 covers the goods from the upper side.

The specific implementation mode is eight:

the present embodiment is described below with reference to fig. 1 to 9, and the seventh embodiment is further described in the present embodiment, in which the plurality of hydraulic cylinders 2 to 3 are synchronously started; the simultaneous working of the combined blades 2-4 of the grab buckets is ensured, and the goods are grabbed.

The specific implementation method nine:

the eighth embodiment is further described with reference to fig. 1 to 9, wherein the wide-open motor 1 to 5 and the rotary driving motor 4 to 2 are both provided with a band-type brake; the accidental rotation of the plurality of rotating screw rods 1-3 and the rotary cutting mechanism 3 in the grabbing process is avoided, and the grabbing range of the plurality of grab bucket combined blades 2-4 is prevented from changing or the plurality of grab bucket combined blades 2-4 are prevented from rotating accidentally.

The invention discloses a working principle of a rotary cutting type grab bucket device, which comprises the following steps: firstly, an external suspension 5-2 is connected to a crane, then a wide-open motor 1-5 is opened, the wide-open motor 1-5 drives a driving bevel gear 1-6 to rotate, the driving bevel gear 1-6 drives a plurality of follow-up bevel gears 1-4 to rotate, the plurality of follow-up bevel gears 1-4 respectively drive a plurality of rotating screw rods 1-3 to rotate, when the plurality of rotating screw rods 1-3 rotate, a plurality of threaded sliding sleeves 2-2 are respectively driven to slide in a plurality of wide-open slideways 1-2, a plurality of I-shaped connecting beams 2-1 respectively drive a plurality of grab bucket combined blades 2-4 to simultaneously approach or depart, the plurality of grab bucket combined blades 2-4 change the distance among each other to change the range of grabbing goods and the grabbing capacity of the formed grab bucket, the corresponding adjustment is realized according to the demand of single grabbing as required, then the plurality of hydraulic cylinders 2-3 are synchronously started, the plurality of hydraulic cylinders 2-3 are synchronously started to drive the plurality of hydraulic cylinders 2-3 to synchronously start to rotate at the bottom ends of the plurality of I-shaped connecting beams 2-1 to grab the goods, meanwhile, when the plurality of I-shaped connecting beams 2-1 move away from each other, the plurality of I-shaped connecting beams 2-1 drive the folding covering umbrella 6-6 to open, the folding covering umbrella 6-6 drives the sliding shaft sleeve 6-4 to slide and descend on the upper limiting shaft 6-2, at the moment, the upper limiting shaft 6-2 stretches the reset tension spring 6-5, so that the folding covering umbrella 6-6 covers the goods from the upper part, and the situation that when grabbing dispersed objects such as ore, coal, grain and the like is avoided, when a plurality of I-shaped connecting beams 2-1 move close to each other, a reset tension spring 6-5 pulls an upper limiting shaft 6-2 and a lower limiting shaft 6-2 to move upwards, the upper limiting shaft 6-2 drives a folding covering umbrella 6-6 to move upwards to fold and fold the folding covering umbrella 6-6, a bottom covering plate 6-3 covers goods from the upper part when the goods are grabbed, and after the goods are grabbed by the plurality of grab bucket combined blades 2-4, the goods incline in the plurality of grab bucket combined blades 2-4 or the gravity center of the goods is not consistent with that of the plurality of grab bucket combined blades 2-4, the grab bucket formed by the plurality of grab bucket combined blades 2-4 is not in a vertical state but inclines, at the moment, the plurality of grab bucket combined blades 2-4 drive the plurality of I-shaped connecting beams 2-1 to incline, the plurality of I-shaped connecting beams 2-1 drive the polygonal limiting blocks 1-1 to incline, the polygonal limiting blocks 1-1 drive the rotary cutting mechanism 3 and the rotary driving mechanism 4 to incline, the suspension disc 4-1 in the rotary driving mechanism 4 inclines to drive the bottom connecting plate 5-5 to incline, the bottom connecting plate 5-5 enables the corresponding buffer spring 5-6 to be compressed by the bottom connecting plate 5-5 and the horizontal suspension plate 5-1 through the plurality of buffer springs 5-6 according to the influence of the inclination direction, meanwhile, the bottom connecting plate 5-5 drives the rotary ball sleeve 5-4 to rotate on the surface of the universal rotary ball 5-3, so that the connection part of the crane and the external suspension 5-2 is kept stable when the bottom connecting plate 5-5 inclines, the potential safety hazard caused by uneven stress and change of stress position at the joint of the external suspension 5-2 and the crane due to inclination and the reduction of the service life of the joint of the external suspension 5-2 and the crane are avoided, meanwhile, after goods are grabbed, the rotary driving motor 4-2 is turned on, the rotary driving motor 4-2 drives the rotary follow-up shaft 3-3 to rotate, the T-shaped sliding circular ring 3-2 rotates coaxially with the rotary follow-up shaft 3-3 in the T-shaped circular ring slideway 4-3, the rotary follow-up shaft 3-3 and the T-shaped sliding circular ring 3-2 drive the rotary sliding platform 3-1 to rotate, so that the rotary sliding platform 3-1 drives the polygonal limiting block 1-1 to rotate and the rotary screw rods 1-3 to rotate, and the rotary screw rods 1-3 drive the threaded sliding sleeves 2-2 and the I-shaped connecting beams 2-1 to rotate The I-shaped connecting beams 2-1 drive the grab bucket combined blades 2-4 to rotate, so that the grab bucket combined blades 2-4 rotate after grabbing goods, the adhesion part between the goods and the outside of the grab bucket combined blades 2-4 is rotationally disconnected, the falling danger of the adhesion objects on the goods due to the fact that the adhesion objects are not located in the grab bucket combined blades 2-4 is avoided, for example, when earth is grabbed, plant roots in the earth can be adhered to the earth and are exposed outside the grab bucket combined blades 2-4, the falling hidden danger exists in the lifting and moving process, the environment can be polluted, meanwhile, workers below the environment can be injured by crashing, and then the crane drives the rotary-cut grab bucket device to move the goods to the corresponding position.

It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.

Claims

1. The utility model provides a rotary-cut formula grab bucket device, includes that the diameter is wide opens adjustment mechanism (1), combined type grab bucket mechanism (2), rotatory cut-off mechanism (3), rotary driving mechanism (4), horizontal balance mechanism (5) and follow-up cover protection machanism (6), its characterized in that: modular grab bucket mechanism (2) be provided with a plurality ofly, the equal sliding connection of a plurality of modular grab bucket mechanisms (2) is on the diameter is wide opens adjustment mechanism (1), the diameter is wide opens adjustment mechanism (1) fixed connection in rotatory mechanism (3) bottom of cutting, rotatory mechanism (3) sliding connection of cutting is on rotary driving mechanism (4), rotary driving mechanism (4) fixed connection is in horizontal balance mechanism (5) bottom, follow-up covers protection machanism (6) fixed connection and is wide opens adjustment mechanism (1) and a plurality of modular grab bucket mechanism (2) in the diameter, a plurality of modular grab bucket mechanisms (2) are all wide opens adjustment mechanism (1) through threaded connection with the diameter.

2. A rotary cut grab bucket device as claimed in claim 1, wherein: the diameter wide-open adjusting mechanism (1) comprises a polygonal limiting block (1-1), wide-open slideways (1-2), rotating screw rods (1-3), following conical gears (1-4), wide-open motors (1-5) and driving bevel gears (1-6), wherein the polygonal limiting block (1-1) is provided with a plurality of wide-open slideways (1-2), the plurality of rotating screw rods (1-3) are respectively and rotatably connected in the plurality of wide-open slideways (1-2), the plurality of following conical gears (1-4) are respectively and fixedly connected on the plurality of rotating screw rods (1-3), the driving bevel gears (1-6) are fixedly connected on output shafts of the wide-open motors (1-5), the wide-open motors (1-5) are fixedly connected on the polygonal limiting block (1-1), the plurality of follow-up bevel gears (1-4) are in meshed transmission with the driving bevel gears (1-6).

3. A rotary cut grab bucket device as claimed in claim 2, wherein: the combined grab bucket mechanism (2) comprises an I-shaped connecting beam (2-1), threaded sliding sleeves (2-2), hydraulic oil cylinders (2-3) and grab bucket combined blades (2-4), wherein the top ends of the grab bucket combined blades (2-4) are rotatably connected to the bottom ends of the I-shaped connecting beam (2-1), the threaded sliding sleeves (2-2) are arranged at the top ends of the I-shaped connecting beam (2-1), the hydraulic oil cylinders (2-3) are rotatably connected to the top ends of the I-shaped connecting beam (2-1) and the middle parts of the grab bucket combined blades (2-4), the threaded sliding sleeves (2-2) are respectively connected to the rotating screw rods (1-3) through threads, and the threaded sliding sleeves (2-2) are respectively connected to the wide-open slideways (1-2) in a sliding mode.

4. A rotary cut grab bucket device as claimed in claim 3, wherein: the rotary cutting-off mechanism (3) comprises a rotary sliding platform (3-1), a T-shaped sliding ring (3-2) and a rotary follow-up shaft (3-3), the rotary follow-up shaft (3-3) is fixedly connected to the middle of the rotary sliding platform (3-1), the rotary sliding platform (3-1) is fixedly connected to the rotary sliding platform (3-1), the rotary follow-up shaft (3-3) is located on the central axis of the T-shaped sliding ring (3-2), the T-shaped sliding ring (3-2) is slidably connected to a rotary driving mechanism (4), and a multi-edge limiting block (1-1) is fixedly connected to the bottom end of the rotary sliding platform (3-1).

5. A rotary cut grab bucket device as claimed in claim 4, wherein: the rotary driving mechanism (4) comprises a hanging disc (4-1), a rotary driving motor (4-2) and a T-shaped annular slide way (4-3), the T-shaped annular slide way (4-3) is arranged at the bottom end of the hanging disc (4-1), the rotary driving motor (4-2) is fixedly connected to the central axis of the rotary driving motor (4-2), the T-shaped sliding annular slide way (3-2) is slidably connected to the T-shaped annular slide way (4-3), a rotary follow-up shaft (3-3) is rotatably connected to the bottom end of the hanging disc (4-1), and the rotary follow-up shaft (3-3) is fixedly connected to an output shaft of the rotary driving motor (4-2).

6. A rotary cut grab bucket device as claimed in claim 5, wherein: the horizontal balance mechanism (5) comprises a horizontal suspension plate (5-1), an external suspension (5-2), a universal rotating ball (5-3), a rotating ball sleeve (5-4), a bottom connecting plate (5-5) and buffer springs (5-6), wherein a plurality of buffer springs (5-6) are arranged, the upper end and the lower end of each buffer spring (5-6) are respectively and fixedly connected to the horizontal suspension plate (5-1) and the bottom connecting plate (5-5), the external suspension (5-2) is fixedly connected to the top end of the horizontal suspension plate (5-1), the universal rotating ball (5-3) is fixedly connected to the bottom end of the horizontal suspension plate (5-1), the rotating ball sleeve (5-4) is fixedly connected to the middle part of the top end of the bottom connecting plate (5-5), and the universal rotating ball (5-3) is slidably connected to the universal rotating ball (5-3), the hanging disc (4-1) is fixedly connected with the bottom end of the bottom connecting plate (5-5).

7. A rotary cut grab bucket device as claimed in claim 6, wherein: the follow-up covering protection mechanism (6) comprises a circular connecting plate (6-1), an upper limiting shaft and a lower limiting shaft (6-2), a bottom covering plate (6-3), a sliding shaft sleeve (6-4), a reset tension spring (6-5) and a folding covering umbrella (6-6), wherein the top end of the folding covering umbrella (6-6) is fixedly connected to the bottom end of the sliding shaft sleeve (6-4), the sliding shaft sleeve (6-4) is slidably connected to the upper limiting shaft and the lower limiting shaft (6-2), the top end of the upper limiting shaft and the lower limiting shaft (6-2) is fixedly connected to the circular connecting plate (6-1), the circular connecting plate (6-1) is fixedly connected to the bottom end of the polygonal limiting block (1-1), the bottom covering plate (6-3) is fixedly connected to the bottom end of the upper limiting shaft and the lower limiting shaft (6-2), and the bottom end of the folding covering umbrella (6-6) is fixedly connected, the folding covering umbrella (6-6) is positioned in the middle of the I-shaped connecting beams (2-1), the top end of the sliding shaft sleeve (6-4) is fixedly connected to the bottom end of the reset tension spring (6-5), and the top end of the reset tension spring (6-5) is fixedly connected to the bottom end of the circular connecting plate (6-1).

8. A rotary cut grab bucket device as claimed in claim 7, wherein: the hydraulic oil cylinders (2-3) are synchronously started.

9. A rotary cut grab bucket device as claimed in claim 8, wherein: and the wide opening motor (1-5) and the rotary driving motor (4-2) are respectively provided with a band-type brake.