CN210480623U

CN210480623U - Single-rope suspension type grab bucket

Info

Publication number: CN210480623U
Application number: CN201921542684.2U
Authority: CN
Inventors: 张双双; 支昌锴
Original assignee: Henan Huagong Industrial Group Co ltd
Current assignee: Henan Huagong Industrial Group Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-05-08
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a single-rope suspension grab bucket, which comprises an upper bearing beam, a lower bearing beam, a steel wire rope and two bucket bodies, wherein both ends of the upper bearing beam are respectively and fixedly connected with an upper suspension through shaft, both ends of the upper suspension through shaft penetrate through the upper bearing beam, and two opposite side surfaces of the upper bearing beam are respectively provided with a rope guide component; a sliding rod vertically penetrates through the middle part of the upper bearing beam, the bottom end of the sliding rod is fixedly connected with the lower bearing beam, a lower sliding body is connected onto the sliding rod in a sliding manner, two sides of the lower sliding body are respectively provided with a pulley, the lower part of the sliding rod is provided with a clamping groove, and a locking device matched with the clamping groove is further arranged on the lower sliding body; four pull rods are arranged between the upper support beam and the two bucket bodies; two ends of the lower support beam are respectively provided with two suspension lug plate shafts, and the end part of the bucket body is rotatably connected to the suspension lug plate shafts of the lower support beam; the top end of the sliding rod is fixedly connected with a hanging ring, and a damping assembly is arranged between the hanging ring and the upper bearing beam. The utility model discloses simple structure can not rely on the external force to accomplish from grabbing, the self-discharging action, and is comparatively convenient.

Description

Single-rope suspension type grab bucket

Technical Field

The utility model relates to a hoist grab field especially relates to a single rope suspension type grab bucket.

Background

Grab bucket refers to a special tool for grabbing various loose deposits 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, and is a main loading and unloading tool for various loose deposits.

The single rope grab bucket uses the same steel wire rope for the supporting rope and the opening and closing rope, is suitable for various cranes with only one lifting drum (single hook), and enables the steel wire rope to alternately play the roles of supporting and opening and closing through a special locking device. When the existing single-rope grab bucket works, after the grab bucket is lifted by the lifting hook, the handle of the locking device needs to be pulled by the grab bucket, so that the locking nail of the locking device is pulled out, and then the locking nail is lifted by the steel wire rope to drive the locking device and the shaft head to lift along the sliding rod together, so that the grab bucket can be opened, and self-grabbing and self-discharging actions are completed. The locking device of the existing single-rope grab bucket is complex in structure and inconvenient to operate.

Disclosure of Invention

The utility model discloses a solve the weak point among the prior art, provide a single rope suspension type grab bucket, simple structure can not rely on the external force to accomplish from grabbing, the self-discharging action, and is comparatively convenient.

The technical scheme adopted by the utility model to solve the above problems is to provide a single-rope suspension grab bucket, which comprises an upper bearer, a lower bearer, a steel wire rope and two bucket bodies, wherein both ends of the upper bearer are respectively and fixedly connected with a suspension upper through shaft, both ends of the suspension upper through shaft penetrate through the upper bearer, and two opposite side surfaces of the upper bearer are respectively provided with a rope guide component;

a sliding rod vertically penetrates through the middle of the upper bearing beam, the bottom end of the sliding rod is fixedly connected with the lower bearing beam, a lower sliding body is connected onto the sliding rod in a sliding manner, pulleys are respectively installed on two sides of the lower sliding body, a clamping groove is formed in the lower portion of the sliding rod, a locking device matched with the clamping groove is further arranged on the lower sliding body, and when the locking device is locked on the clamping groove, the lower sliding body and the sliding rod are connected into a whole;

four pull rods are arranged between the upper bearing beam and the two bucket bodies, a top lug plate is fixedly connected above the bucket bodies, a pull rod pin shaft is rotatably connected on the top lug plate, and two ends of each pull rod are respectively rotatably connected on the hanging through shaft and the pull rod pin shaft; two ends of the lower support beam are respectively provided with two suspension lug plate shafts, and the end part of the bucket body is rotatably connected to the suspension lug plate shafts of the lower support beam;

the top end of the sliding rod is fixedly connected with a hanging ring, rope guide rings are evenly distributed on the hanging ring, and a damping assembly is arranged between the hanging ring and the upper bearing beam.

Preferably, the rope guide assembly comprises a wire rope wedge sleeve and an anti-swinging wheel, and a gap for the wire rope to pass through is arranged between the wire rope wedge sleeve and the anti-swinging wheel.

Preferably, rope guide plates are further mounted on two sides of the lower slider respectively, the rope guide plates are arc-shaped plates matched with the profiles of the pulleys, and gaps for the steel wire ropes to penetrate through are formed between the rope guide plates and the pulleys and are arranged below the pulleys.

Preferably, the locking device comprises a mounting frame and a hanging clamping plate, the mounting frame is fixedly mounted on one side of the lower sliding body, the hanging clamping plate comprises a clamping portion and a counterweight portion, the counterweight portion is heavier than the clamping portion, an included angle between the clamping portion and the counterweight portion is an obtuse angle, an inflection point of the hanging clamping plate is formed at the intersection of the clamping portion and the counterweight portion, and the inflection point is rotatably connected to the mounting frame through a clamping plate pin shaft; the tip of joint portion and the draw-in groove cooperation on the slide bar, counter weight portion and hang and wear to be connected with the locking spring between the axle.

Preferably, the clamping groove is a wedge-shaped groove, the top surface of the wedge-shaped groove is a plane, and the side surface of the wedge-shaped groove is an inclined surface.

Preferably, the damping assembly comprises a square steel lock cap and a damping spring, the square steel lock cap comprises a sleeve, the top of the sliding rod is a cylindrical section, external threads are formed in the cylindrical section, the sleeve is in threaded connection with the cylindrical section of the sliding rod, a guide rope lug plate is fixed on the outer wall of the sleeve, two symmetrical guide rope holes are formed in the guide rope lug plate, a spring baffle is fixedly connected to the bottom of the cylindrical section, and the damping spring is installed between the bottom of the sleeve and the spring baffle.

Preferably, the two ends of the upper hanging through shaft are in threaded connection with nuts, the end part of the pull rod is installed between the nuts and the upper bearing beam, and the end parts of the clamping plate pin shaft, the hanging lug plate shaft and the pull rod pin shaft are all provided with split pins for positioning.

Preferably, the bottom of one of the hopper bodies is fixedly connected with a material baffle, the length of the material baffle is matched with that of the hopper body, and when the two hopper bodies are in a closed state, the material baffle is positioned under the joint of the two hopper bodies.

Adopt above-mentioned technical scheme, the utility model has the advantages of it is following:

the utility model discloses a locking device can be as an organic whole with sliding rod connection sliding body down grabbing the material in-process for promote wire rope and can drive sliding body, slide bar and lower bolster simultaneously and rise down, make the bucket body closed, accomplish and grab the material, can remove the locking of sliding body and slide bar down again when unloading, make the grab bucket open smoothly and unload, whole locking with remove the locking process simple and convenient, can not rely on the external force to accomplish from grabbing, self-discharging action.

The rope guide assembly of the utility model can prevent the steel wire rope from swinging in the hoisting process, thereby improving the grabbing stability; the rope guide plate is arranged below the pulley of the lower sliding body, so that the steel wire rope can be prevented from falling off from the pulley; the shock absorption assembly of the utility model can reduce the impact force caused by the upward impact of the upper bearing beam and prolong the service life of each part; the utility model discloses the striker plate that sets up can keep off gap department when two bucket bodies are closed, prevents that the interior material of bucket body from spilling.

Drawings

Fig. 1 is one of the schematic structural diagrams (bucket closed state) of the present invention;

FIG. 2 is a right side view of FIG. 1;

fig. 3 is one of the schematic structural diagrams (the bucket body is in an open state) of the present invention;

FIG. 4 is a schematic view of the locking device with the engaging portion disengaged from the slot;

FIG. 5 is a cross-sectional view A-A of FIG. 1;

FIG. 6 is a cross-sectional view B-B of FIG. 1;

FIG. 7 is a cross-sectional view C-C of FIG. 1;

fig. 8 is a cross-sectional view taken along line D-D of fig. 1.

Detailed Description

As shown in fig. 1 to 8, the left direction of fig. 1 is the left direction of the utility model, the utility model discloses a single rope suspension grab bucket includes bolster 1, bolster 2, wire rope and two bucket bodies 3 down, and both ends are worn axle 4 on fixedly connected with suspension respectively about the bolster 1, and the both ends of wearing axle 4 on the suspension are run through on the bolster 1, install rope direction subassembly on the relative leading flank of bolster 1 and the trailing flank respectively.

The rope guide assembly comprises a steel wire rope wedge sleeve 5 and an anti-swing wheel 6, and a gap for the steel wire rope to pass through is formed between the steel wire rope wedge sleeve 5 and the anti-swing wheel 6. The steel wire rope can be prevented from swinging in the hoisting process, and the grabbing stability is improved.

Go up vertical the running through in middle part of bolster 1 and have slide bar 7, slide bar 7 is the square steel, slide bar 7 and 1 sliding connection of last bolster, the bottom fixed connection of slide bar 7 bolster 2 down, sliding connection has gliding mass 8 down on the slide bar 7, and a pulley 9 is installed respectively to gliding mass 8's both sides down, and rope guide 10 is still installed respectively to gliding mass 8's both sides, and rope guide 10 be with 9 profile phase-matched arc of pulley, rope guide 10 set up pulley 9 below and pulley 9 between be equipped with the clearance that is used for wire rope to pass, can prevent that wire rope from droing from pulley 9.

The lower part of the sliding rod 7 is provided with a clamping groove 11, the lower slider 8 is also provided with a locking device matched with the clamping groove 11, and when the locking device is locked on the clamping groove 11, the lower slider 8 and the sliding rod 7 are connected into a whole.

The locking device comprises an installation frame 12 and a hanging clamping plate, the installation frame 12 is fixedly installed on the right side of the lower sliding body 8, the hanging clamping plate comprises a clamping portion 13 and a counterweight portion 14, the counterweight portion 14 is heavier than the clamping portion 13, an included angle between the clamping portion 13 and the counterweight portion 14 is an obtuse angle, an intersection of the clamping portion 13 and the counterweight portion 14 is an inflection point of the hanging clamping plate, and the inflection point is rotatably connected to the installation frame 12 through a clamping plate pin shaft 15; the end of the clamping part 13 is matched with the clamping groove 11 on the sliding rod 7, and a locking spring 16 is connected between the counterweight part 14 and the hanging upper through shaft 4. The locking device can connect the lower sliding body 8 and the sliding rod 7 into a whole in the grabbing process, so that the lifting steel wire rope can simultaneously drive the lower sliding body 8, the sliding rod 7 and the lower bearing beam 2 to ascend together, the bucket body 3 is closed, grabbing is completed, the locking of the lower sliding body 8 and the sliding rod 7 can be released in the unloading process, the grab bucket can be smoothly opened for unloading, and the whole locking and unlocking process is simple and convenient.

The clamping groove 11 is a wedge-shaped groove, the top surface of the wedge-shaped groove is a plane, and the side surface of the wedge-shaped groove is an inclined surface. When the locking device is locked and the lower sliding body 8 ascends, the clamping part 13 of the hanging clamping plate is clamped in the clamping groove 11 of the sliding rod 7, and the sliding rod 7 and the lower bearing beam 2 are driven to ascend together.

Four pull rods 17 are arranged between the upper support beam 1 and the two bucket bodies 3, a top lug plate 18 is fixedly connected above the bucket body 3, a pull rod pin shaft 19 is rotatably connected on the top lug plate 18, and two ends of each pull rod 17 are respectively rotatably connected on the upper suspension through shaft 4 and the pull rod pin shaft 19; two suspension lug plate shafts 20 are respectively arranged at the front end and the rear end of the lower bolster 2, and the end part of the bucket body 3 is rotatably connected on the suspension lug plate shafts 20 of the lower bolster 2.

The top end of the sliding rod 7 is fixedly connected with a hanging ring 21, rope guide rings 22 are uniformly distributed on the hanging ring 21, and a damping component is arranged between the hanging ring 21 and the upper bolster 1.

Damping component includes square steel lock cap and damping spring 26, and square steel lock cap includes sleeve 23, and the top of slide bar 7 is the cylinder section, has seted up the external screw thread on the cylinder section, and sleeve 23 threaded connection is fixed with on the sleeve 23 outer wall and leads rope otic placode 24 on the cylinder section of slide bar 7, leads and sets up the rope hole of leading of two symmetries on the rope otic placode 24, the bottom fixedly connected with spring baffle 25 of cylinder section, install between sleeve 23 bottom and the spring baffle 25 damping spring 26. When unloading, the grab bucket is opened for unloading due to the action of gravity in the twinkling of an eye when leaving ground, and upper bolster 1 can fast rebound, produces great momentum, if do not take shock attenuation measure, parts are fragile more easily, and damping spring 26's setting can reduce the impact force that upper bolster 1 upwards strikeed and bring, prolongs each parts life.

Nuts 27 are connected to two ends of the suspension upper penetrating shaft 4 in a threaded mode, the end portion of the pull rod 17 is installed between the nuts 27 and the upper support beam 1, and cotter pins 28 for positioning are installed at the end portions of the clamping plate pin shaft 15, the suspension lug plate shaft 20 and the pull rod pin shaft 19. The arrangement of the nut 27 and the split pin 28 enables the connection shafts to be stably connected in each structure of the present invention.

The bottom of one of the bucket bodies 3 is fixedly connected with a material baffle 29, the length of the material baffle 29 is matched with that of the bucket bodies 3, and when the two bucket bodies 3 are in a closed state, the material baffle 29 is positioned right below the joint of the two bucket bodies 3. When the two bucket bodies 3 are closed, gaps exist at the joint of the two bucket bodies 3 more or less, and the material baffle 29 can block the gaps to prevent the materials in the bucket bodies 3 from leaking.

The working process is as follows:

1. the grab bucket is opened on the material, the lower sliding body 8 descends due to the action of gravity, and at the moment, the locking spring 16 connected to the counterweight part 14 of the hanging clamping plate is pulled more and more tightly, so that the clamping part 13 of the hanging clamping plate is pushed against the side wall of the sliding rod 7.

2. When the lower sliding body 8 is lowered to a position corresponding to the clamping groove 11 in the sliding rod 7, the hanging clamping plate on the lower sliding body 8 is clamped in the groove of the sliding rod 7 under the action of the pulling force of the locking spring 16, at the moment, the lower sliding body 8 and the sliding rod 7 are connected into a whole, then the steel wire rope is lifted, and as the lower sliding body 8 is connected with the sliding rod 7, the lower sliding body 8, the sliding rod 7 and the lower bearing beam 2 are lifted together, the bucket body 3 is closed, and the material grabbing is completed.

3. When unloading, release wire rope, this moment grab bucket bottom fall the stockpile on with the holding surface contact, because action of gravity, lower sliding body 8 descends, after descending a section distance, locking spring 16 loses the effect, and under the 14 action of gravity of counter weight portion, make and hang the cardboard and rotate around cardboard round pin axle 15 (when lower sliding body 8 descends, hang the cardboard and rotate), hang the joint portion 13 of cardboard and can break away from draw-in groove 11 on the slide bar 7 (as shown in fig. 4), lower sliding body 8 and slide bar 7 separation.

4. The lower sliding body 8 moves upwards to be away from the lower bearing beam 2 gradually and tends to the upper bearing beam 1, and the grab bucket is opened to discharge materials due to the gravity action at the moment of leaving the ground.

5. The grab bucket which has unloaded the material is in an open state in the air, and after the grab bucket is placed on the material, the lower sliding body 8 descends to complete a grabbing process.

The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification of the above embodiments.

Claims

1. The utility model provides a single rope suspension type grab bucket, includes bolster, wire rope and two bucket bodies, its characterized in that down: two ends of the upper bearer are respectively and fixedly connected with a suspension upper through shaft, two ends of the suspension upper through shaft penetrate through the upper bearer, and two opposite side surfaces of the upper bearer are respectively provided with a rope guide assembly;

2. The single rope suspended grab bucket of claim 1, wherein: the rope guide assembly comprises a steel wire rope wedge sleeve and an anti-swing wheel, and a gap for the steel wire rope to penetrate through is formed between the steel wire rope wedge sleeve and the anti-swing wheel.

3. The single rope suspended grab bucket of claim 1, wherein: the two sides of the lower sliding body are respectively provided with a rope guide plate, the rope guide plates are arc plates matched with the profile of the pulley, and the rope guide plates are arranged below the pulley and provided with a gap for the steel wire rope to pass through between the rope guide plates and the pulley.

4. The single rope suspended grab bucket of claim 1, wherein: the locking device comprises a mounting frame and a hanging clamping plate, the mounting frame is fixedly mounted on one side of the lower sliding body, the hanging clamping plate comprises a clamping portion and a counterweight portion, the counterweight portion is heavier than the clamping portion, an included angle between the clamping portion and the counterweight portion is an obtuse angle, an inflection point of the hanging clamping plate is arranged at the intersection of the clamping portion and the counterweight portion, and the inflection point is rotatably connected to the mounting frame through a clamping plate pin shaft; the tip of joint portion and the draw-in groove cooperation on the slide bar, counter weight portion and hang and wear to be connected with the locking spring between the axle.

5. The single rope suspended grab of claim 4, in which: the clamping groove is a wedge-shaped groove, the top surface of the wedge-shaped groove is a plane, and the side surface of the wedge-shaped groove is an inclined surface.

6. The single rope suspended grab of claim 5, in which: damping component includes square steel lock cap and damping spring, and square steel lock cap includes the sleeve, and the top of slide bar is the cylinder section, has seted up the external screw thread in the cylinder section, and sleeve threaded connection is fixed with the rope guide lug plate on the sleeve outer wall in the cylinder section of slide bar, sets up the rope guide hole of two symmetries on the rope guide lug plate, and the bottom fixedly connected with spring retainer of cylinder section installs between sleeve bottom and the spring retainer damping spring.

7. The single rope suspended grab of claim 6, in which: the threaded connection of both ends of the upper penetrating shaft of the suspension is provided with nuts, the end part of the pull rod is arranged between the nuts and the upper bearing beam, and the end parts of the clamping plate pin shaft, the suspension lug plate shaft and the pull rod pin shaft are provided with split pins for positioning.

8. The single rope suspended grab as claimed in any one of claims 1 to 7, in which: the bottom fixedly connected with striker plate of one of them bucket body, the length of striker plate and the length phase-match of bucket body, and when two bucket bodies were closed state, the striker plate was located two bucket bodies and meets under the department.