CN210480625U - Locking device of single-rope suspension type grab bucket - Google Patents
Locking device of single-rope suspension type grab bucket Download PDFInfo
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- CN210480625U CN210480625U CN201921544226.2U CN201921544226U CN210480625U CN 210480625 U CN210480625 U CN 210480625U CN 201921544226 U CN201921544226 U CN 201921544226U CN 210480625 U CN210480625 U CN 210480625U
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Abstract
The utility model discloses a locking device of a single-rope suspension type grab bucket, which comprises an upper bearing beam and a lower bearing beam, wherein a slide bar vertically penetrates through the middle part of the upper bearing beam, the bottom end of the slide bar is fixedly connected with the lower bearing beam, a lower sliding body is connected on the slide bar in a sliding way, two sides of the lower sliding body are respectively provided with a pulley, the lower part of the slide bar is provided with a clamping groove, and the lower sliding body is also provided with a locking device matched with the clamping groove; 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, and the intersection of the clamping portion and the counterweight portion 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, be connected with the locking spring between counter weight portion and the last bolster, when joint portion joint is in the draw-in groove, gliding mass and slide linkage are as an organic whole down. The utility model discloses simple structure can not rely on supplementary single rope to hang the grab bucket under the external force and accomplish from grabbing, the self-discharging action.
Description
Technical Field
The utility model relates to a crane grab field especially relates to a locking device of 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 locking device of single rope suspension type grab bucket, simple structure can not rely on under the external force supplementary single rope suspension grab bucket to accomplish from grabbing, the self-discharging action.
The technical scheme adopted by the utility model to solve the above problems is to provide a locking device of a single-rope suspension type grab bucket, which comprises an upper bearing beam and a lower bearing beam, wherein a slide bar vertically penetrates through the middle part of the upper bearing beam, the bottom end of the slide bar is fixedly connected with the lower bearing beam, a lower sliding body is connected onto the slide bar in a sliding manner, two sides of the lower sliding body are respectively provided with a pulley, the lower part of the slide bar is provided with a clamping groove, and the lower sliding body is also provided with a locking device matched with the clamping groove;
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, be connected with the locking spring between counter weight portion and the last bolster, when joint portion joint is in the draw-in groove, gliding mass and slide linkage are as an organic whole down.
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, 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, two opposite side surfaces of the upper bolster are respectively provided with a rope guide assembly, the rope guide assembly comprises a steel wire rope wedge sleeve and an anti-swinging wheel, and a gap for the steel wire rope to pass through is arranged between the steel wire rope wedge sleeve and the anti-swinging wheel.
Preferably, the ends of the catch plate pin shafts are fitted with cotter pins for positioning.
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 utility model discloses be provided with the rope guide below the pulley of gliding mass down, can prevent that wire rope from droing from the pulley.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the locking device with the engaging portion disengaged from the slot.
Detailed Description
As shown in fig. 1 and 2, the left direction of fig. 1 is the left direction of the utility model, the utility model discloses a locking device of single rope suspension grab bucket, including upper bolster 1 and lower bolster 2, the vertical through slide bar 7 that has run through in middle part of upper bolster 1, slide bar 7 are the square steel, slide bar 7 and upper bolster 1 sliding connection, the top fixedly connected with rings 21 of slide bar 7, the equipartition has the rope guide ring 22 on rings 21, the bottom fixed connection of slide bar 7 lower bolster 2, sliding connection has down gliding mass 8 on the slide bar 7, a pulley 9 is installed respectively to the both sides of down gliding mass 8, draw-in groove 11 has been seted up to the lower part of slide bar 7, still be provided with on the lower gliding mass 8 with draw-in groove 11 complex locking device.
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, the inflection point is rotatably connected to the installation frame 12 through a clamping plate pin shaft 15, and a cotter pin for positioning is installed at the end portion of the clamping plate pin shaft 15; the end of the clamping portion 13 is matched with the clamping groove 11 on the sliding rod 7, a locking spring 16 is connected between the counterweight portion 14 and the upper bearing beam 1, and when the clamping portion 13 is clamped in the clamping groove 11, the lower sliding body 8 and the sliding rod 7 are connected into a whole. 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.
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 is closed, grabbing is completed, the locking of the lower sliding body 8 and the sliding rod 7 can be released during unloading, the grab bucket can be smoothly opened for unloading, and the whole locking and unlocking process is simple and convenient.
The front side face and the rear side face, opposite to the upper bolster 1, of the upper bolster are respectively provided with a rope guide assembly, the rope guide assembly comprises a steel wire rope wedge sleeve 5 and an anti-swing wheel 6, and a gap for a steel wire rope to penetrate is formed between the steel wire rope wedge sleeve 5 and the anti-swing wheel 6. The rope guide assembly can prevent the steel wire rope from swinging in the hoisting process, and the grabbing stability is improved.
The single-rope suspension grab bucket further comprises a bucket body, a pull rod is arranged between the upper bearing beam and the bucket body, the end part of the bucket body can rotate around the lower bearing beam, and when the single-rope suspension grab bucket works, the working process of the locking device 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 is closed, and the 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 (as shown in figure 2) on the slide bar 7, lower sliding body 8 and slide bar 7 separation.
4. And the lower sliding body 8 moves upwards to gradually get away from the lower bearer 2 and approach the upper bearer 1, and the grab bucket opens to discharge 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 (6)
1. The utility model provides a locking device of single rope suspension type grab bucket, includes bolster and bolster down, its characterized in that: 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, 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;
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, be connected with the locking spring between counter weight portion and the last bolster, when joint portion joint is in the draw-in groove, gliding mass and slide linkage are as an organic whole down.
2. The latching mechanism of claim 1, wherein: 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.
3. The latching mechanism of claim 2, 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 latching mechanism of claim 3, wherein: and the two opposite side surfaces of the upper bolster are respectively provided with a rope guide assembly, the rope guide assembly comprises a steel wire rope wedge sleeve and an anti-swinging wheel, and a gap for the steel wire rope to pass through is arranged between the steel wire rope wedge sleeve and the anti-swinging wheel.
5. The shackle device of a single rope suspended grab as claimed in any one of claims 1 to 4, wherein: the end of the clamping plate pin shaft is provided with a cotter pin for positioning.
6. The latching mechanism of claim 5, wherein: the top end of the sliding rod is fixedly connected with a hanging ring, and rope guide rings are uniformly distributed on the hanging ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921544226.2U CN210480625U (en) | 2019-09-17 | 2019-09-17 | Locking device of single-rope suspension type grab bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921544226.2U CN210480625U (en) | 2019-09-17 | 2019-09-17 | Locking device of single-rope suspension type grab bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210480625U true CN210480625U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921544226.2U Active CN210480625U (en) | 2019-09-17 | 2019-09-17 | Locking device of single-rope suspension type grab bucket |
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| CN (1) | CN210480625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321277A (en) * | 2021-12-31 | 2022-04-12 | 湖南三一中型起重机械有限公司 | Counterweight dismounting device and engineering machinery |
| CN115072608A (en) * | 2022-05-23 | 2022-09-20 | 杭州华新机电工程有限公司 | Platform lifting mechanism |
-
2019
- 2019-09-17 CN CN201921544226.2U patent/CN210480625U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321277A (en) * | 2021-12-31 | 2022-04-12 | 湖南三一中型起重机械有限公司 | Counterweight dismounting device and engineering machinery |
| CN115072608A (en) * | 2022-05-23 | 2022-09-20 | 杭州华新机电工程有限公司 | Platform lifting mechanism |
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