Single-cylinder wireless remote control grab bucket structure

Abstract

The invention relates to the technical field of grab buckets, in particular to a single-cylinder wireless remote control grab bucket structure which comprises a top tray, a grab bucket arm is mounted on the bottom side of the top tray, a containing bucket is connected to one side of the grab bucket arm, a hydraulic push rod is further mounted in the top tray, a lifting block is connected to one end of the hydraulic push rod, a lower rotating wheel is mounted on the lifting block, and a hydraulic cylinder is mounted on the lower rotating wheel. An upper rotating wheel is arranged at the top end of the lower rotating wheel, and a pull rope is connected to the lower rotating wheel and the upper rotating wheel. According to the scheme, the stage that the grab bucket grabs materials for a long time and the possibility that the oil temperature continuously rises and falls due to long-time pressure maintaining of an oil body in the hydraulic cylinder are reduced, the load pressure borne by the hydraulic cylinder and the damage frequency are reduced, the grabbing period of the whole grab bucket is prolonged, the effect that the grabbing reaction speed is higher is achieved, the hydraulic cylinder can be unloaded through the lifting rope, and the working efficiency is improved. And the automatic cleaning effect of the device is also improved, simple part washing can be conducted on the grab bucket after work is completed, and a large number of corrosive substances on the outer surface are cleaned away.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grab bucket, in particular to a single-cylinder wireless remote control grab bucket structure. BACKGROUND

[0002] The single-cylinder wireless remote control grab bucket is a grabbing tool for hoisting equipment such as cranes, hoists and the like, and is remotely controlled through wireless remote control technology, and is suitable for loading and unloading operations of bulk cargo such as coal, ore, grain, scrap steel and the like. The single-cylinder wireless remote control grab bucket is an important equipment in the field of bulk cargo loading and unloading, and its development background involves the evolution of mechanical structure, hydraulic transmission, wireless communication and automation control technologies.

[0003] At present, the single-cylinder wireless remote control grab bucket usually only uses a single hydraulic cylinder to control the grabbing work of the grab bucket during use. During the long closed stage of the grab bucket, the hydraulic cylinder is locked, and the internal hydraulic oil repeatedly rises and falls due to long-term pressure retention. In addition, the hydraulic cylinder will appear hydraulic failure state after long time use, the grab bucket cannot be closed, and part of the grab bucket may work in the environment with high corrosion such as seawater, the surface of the parts is easy to attach corrosive substances, and lacks automatic cleaning mechanism, which accelerates the aging of the equipment. Therefore, a single-cylinder wireless remote control grab bucket structure is proposed. SUMMARY

[0004] The purpose of the present application is to solve the problems existing in the prior art, and a single-cylinder wireless remote control grab bucket structure is proposed.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A single-cylinder wireless remote control grab bucket structure, comprising a top disc, a grab bucket arm is installed on the bottom side of the top disc, a holding bucket is connected on one side of the grab bucket arm, a hydraulic push rod is also installed in the top disc, a lifting block is connected on one end of the hydraulic push rod, a lower rotating wheel is installed on the lifting block, an upper rotating wheel is arranged on the top end of the lower rotating wheel, a pull rope is connected on the lower rotating wheel and the upper rotating wheel, a steering spraying pipe is installed on the side wall surface of the grab bucket arm, a transmission hose is also arranged on the outside of the grab bucket arm, a liquid guide pipe is connected on the bottom end of the transmission hose, and a spraying block is installed on the outside of the liquid guide pipe.

[0007] Preferably, the grab bucket arm is provided with two groups, the two groups of grab bucket arms are symmetrically installed on both sides of the top disc, the top end of the grab bucket arm is rotatably connected with the top disc, the bottom end of the grab bucket arm is connected with a connecting piece, the holding bucket is provided with two, the two holding buckets are symmetrically installed on the bottom edges of the two groups of connecting pieces, and the two holding buckets are closedly connected.

[0008] Preferably, a central groove is opened through the top plate, the hydraulic push rod is installed in the central groove, the lifting block is connected to the telescopic end of the hydraulic push rod, circular limit blocks are installed on both sides of the lifting block, the top end of the connecting piece is rotatably connected to the outside of the limit block, and multiple tilting rods are fixed on both sides of the connecting piece, and the other end of the tilting rod is welded and installed on the inner wall surface of the containing bucket.

[0009] Preferably, multiple lower rotating wheels are horizontally installed on both sides of the telescopic end of the hydraulic push rod, and the base of the lower rotating wheel is fixedly installed on the top surface of the lifting block. There are also multiple upper rotating wheels, all of which are obliquely installed on the bottom surface of the top plate. The bottom end of the pull rope is fixedly installed on the lifting block, and then wound around the outer surfaces of the upper and lower rotating wheels in sequence.

[0010] Preferably, two fixed blocks are symmetrically installed on the top surface of the top plate, and the fixed blocks are located on both sides of the hydraulic push rod. The fixed blocks are rotatably connected to the take-up rollers, and the fixed blocks are located in the middle of the take-up rollers. A first motor is installed on one end of one of the take-up rollers, and a synchronous belt is connected to the other end. The other end of the synchronous belt is connected to the other take-up roller, and the two take-up rollers move synchronously.

[0011] Preferably, a plurality of through holes are provided on the top plate, and a protective block is fixedly installed on the top of the through hole, and the protective block includes a mounting seat, an upper contact roller and a lower contact roller, and the mounting seat is fixed on the top plate, and two lower contact rollers are vertically arranged, and both lower contact rollers are rollingly connected to the bottom layer of the mounting seat, and two upper contact rollers are horizontally arranged, and the upper contact rollers are rollingly connected to the top layer of the mounting seat, and the pull rope is connected to the upper contact roller and the lower contact roller, and the top end of the pull rope is connected to the outer surface of the take-up roller.

[0012] Preferably, a plurality of liquid outlet ends are symmetrically installed on the inner wall surface of the grab arm, a steering spray pipe is horizontally arranged between two corresponding liquid outlet ends, the steering spray pipe and the liquid outlet end are rotatably connected, a plurality of adjustable spray beads are arranged and installed on the steering spray pipe, a first gear is installed on the outer surface of one end of the steering spray pipe, a pushing rack is connected to the bottom side of the first gear, a limit bar is installed on the top and bottom surfaces of one side of the pushing rack, the limit bar is fixedly installed on the grab arm, a first telescopic rod is also installed on the inner wall surface of the grab arm, the telescopic end of the first telescopic rod is connected to the top of the pushing rack.

[0013] Preferably, a plurality of positioning blocks are arranged and installed on the outer wall surface of the grab arm, the positioning blocks are matched with the position of the liquid outlet end, and the two are in pipeline connection, transmission hoses are connected between the positioning blocks, liquid inlet pipes are arranged on the two sides of the top disc, the top ends of the transmission hoses are communicated with the liquid inlet pipes, liquid guide pipes are horizontally installed on the holding hopper and the connecting piece, a plurality of spraying blocks are arranged and installed on the outer surface of the liquid guide pipe, and the bottom end of the transmission hose is connected to the liquid guide pipe.

[0014] The beneficial effects of the present application are:

[0015] The present application can realize the up-down lifting of the lifting block through the cooperation of the hydraulic push rod and the stretching, the lifting rope can share part of the load pressure of the hydraulic push rod, the turning spraying pipe can be used for washing and cooling the hydraulic push rod and the lifting rope with the atomized liquid, the influence of the corrosive substances is reduced, the first telescopic rod can be used for adjusting the spraying position of the turning spraying pipe, so that the outside of the holding hopper in the open state is sprayed and cleaned, and the spraying blocks can be used for completing the simple cleaning and washing of the inside of the holding hopper.

[0016] The present application reduces the stage of long-time material grabbing and closing of the grab, reduces the possibility of continuous rise and fall of the oil temperature caused by long-time pressure maintaining of the oil in the hydraulic cylinder, reduces the load pressure and damage frequency of the hydraulic cylinder, improves the grabbing cycle of the whole grab, realizes the effect of faster grabbing response speed, the lifting rope can complete the unloading of the hydraulic cylinder, and the automatic cleaning effect of the device is improved, the grab after completing the work can be simply washed, and a large amount of corrosive substances on the outer surface can be cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structural schematic view of a single-cylinder wireless remote control grab structure is provided for the present application;

[0018] Figure 2 A front view structural schematic view of a single-cylinder wireless remote control grab structure is provided for the present application;

[0019] Figure 3 A side view structural schematic view of a single-cylinder wireless remote control grab structure is provided for the present application;

[0020] Figure 4 A structural schematic view of part A is provided for the present application; Figure 1

[0021] A structural schematic view of part A is provided for the present application; Figure 5

[0022] A front view structural schematic view of part A is provided for the present application; Figure 6 Figure 5 A front view structural schematic view of part A is provided for the present application;

[0023] Figure 7 A front view structural schematic view of part A is provided for the present application;​ Figure 5 Schematic diagram of the partial top view structure;

[0024] Figure 8 It is a structural diagram of the protection block part.

[0025] In the figure: 1. top plate; 2. grab arm; 3. holding bucket; 4. hydraulic push rod; 5. first motor; 6. pull rope; 7. lifting block; 8. liquid inlet pipe; 9. spray block; 10. first telescopic rod; 11. positioning block; 12. liquid guide pipe; 13. transmission hose; 14. steering spray pipe; 15. lower turntable; 16. pushing rack; 17. upper turntable; 18. first gear; 19. fixing block; 20. limit bar; 21. protective block; 211. upper contact roller; 212. lower contact roller; 22. connecting piece; 23. synchronous belt; 24. take-up roller. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example: Refer to Figure 1-8 A single-cylinder wireless remote control grab structure includes a top plate 1, a grab arm 2 is installed on the bottom side of the top plate 1, and a holding bucket 3 is connected to one side of the grab arm 2. A hydraulic push rod 4 is also installed in the top plate 1, and a lifting block 7 is connected to one end of the hydraulic push rod 4. A lower rotary wheel 15 is installed on the lifting block 7, and an upper rotary wheel 17 is provided on the top of the lower rotary wheel 15. A pull rope 6 is connected to the lower rotary wheel 15 and the upper rotary wheel 17. A steering spray pipe 14 is installed on the side wall of the grab arm 2, and a transmission hose 13 is also provided on the outside of the grab arm 2. The bottom end of the transmission hose 13 is connected to the liquid guide pipe 12. The liquid guide pipe A spray block 9 is installed on the outside of 12, and two groups of grab arms 2 are provided. The two groups of grab arms 2 are symmetrically installed on both sides of the top plate 1 and can respectively control the containing buckets 3 on both sides. The top of the grab arm 2 is rotatably connected to the top plate 1, and a connecting piece 22 is connected to the bottom end of the grab arm 2. There are two containing buckets 3, and the two containing buckets 3 are symmetrically installed on the bottom edges of the two groups of connecting pieces 22. The closing and opening of the containing bucket 3 can be controlled according to the rotation of the connecting piece 22. The two containing buckets 3 are in a closed connection. A wireless signal receiver is provided on the top plate 1 to control the operation of the hydraulic push rod 4 and the motor.

[0028] Specifically, a center groove is opened through the top plate 1, the hydraulic push rod 4 is installed in the center groove, the lifting block 7 is connected to the telescopic end of the hydraulic push rod 4, and circular limit blocks are installed on both sides of the lifting block 7. The top end of the connecting piece 22 is rotatably connected to the outside of the limit block so that the containing bucket 3 can be adjusted according to the height of the lifting block 7. A plurality of tilting rods are fixed on both sides of the connecting piece 22, and the other end of the tilting rod is welded and installed on the inner wall surface of the containing bucket 3 to achieve a stable connection to the containing bucket 3.

[0029] Furthermore, multiple lower wheels 15 are horizontally installed on both sides of the telescopic end of the hydraulic push rod 4. The base of the lower wheel 15 is fixedly installed on the top surface of the lifting block 7. Multiple upper wheels 17 are also provided, all of which are obliquely installed on the bottom surface of the top plate 1. The bottom end of the pull rope 6 is fixedly installed on the lifting block 7, and then wound around the outer surfaces of the upper wheel 17 and the lower wheel 15 in turn. The double pulley form can make the process of winding the pull rope 6 more labor-saving.

[0030] In addition, two fixed blocks 19 are symmetrically installed on the top surface of the top plate 1. The fixed blocks 19 are located on both sides of the top of the hydraulic push rod 4. The fixed blocks 19 are rotatably connected to the take-up rollers 24. The fixed blocks 19 are located in the middle position of the take-up rollers 24 to facilitate the reeling at both ends. A first motor 5 is installed on one end of one of the take-up rollers 24, and a synchronous belt 23 is connected to the other end. The other end of the synchronous belt 23 is connected to the other take-up roller 24. The two take-up rollers 24 move synchronously to ensure consistency during the reeling process of the pull rope 6.

[0031] Finally, a plurality of through holes are opened on the top plate 1, and a protective block 21 is fixedly installed on the top of the through hole. The protective block 21 includes a mounting seat, an upper contact roller 211 and a lower contact roller 212. The mounting seat is fixed on the top plate 1, and two lower contact rollers 212 are vertically arranged. The lower contact rollers 212 are both rollingly connected to the bottom layer of the mounting seat. Two upper contact rollers 211 are horizontally arranged. The upper contact roller 211 is rollingly connected to the top layer of the mounting seat. The pull rope 6 is connected to the upper contact roller 211 and the lower contact roller 212. The top end of the pull rope 6 is connected to the outer surface of the take-up roller 24 to act on the friction protection of the pull rope 6 to prevent the pull rope 6 from contacting with the top plate 1 during the process of winding and releasing the rope.

[0032] In this embodiment, the inner wall surface of the grab arm 2 is symmetrically provided with a plurality of liquid outlets, and a turning spray pipe 14 is horizontally arranged between two corresponding liquid outlets to facilitate spraying cleaning liquid to clean the device. The turning spray pipe 14 is sealingly connected with the liquid outlet, and a plurality of adjustable atomizing spray beads are arranged on the turning spray pipe 14 to facilitate adjusting different spray directions. A first gear 18 is arranged on the outer surface of one end of the turning spray pipe 14, and a push rack 16 is connected to the bottom side of the first gear 18. Limiting strips 20 are arranged on the top surface and the bottom surface of one side of the push rack 16 to limit the movement of the push rack 16 and ensure stable linear movement. The limiting strips 20 are fixedly arranged on the grab arm 2. A first telescopic rod 10 is arranged on the inner wall surface of the grab arm 2, and the telescopic end of the first telescopic rod 10 is connected to the top end of the push rack 16 to facilitate moving the push rack 16 forward and backward.

[0033] A plurality of positioning blocks 11 are arranged on the outer wall surface of the grab arm 2, and the positioning blocks 11 are matched with the positions of the liquid outlets and are connected by pipes to facilitate stable input of liquid into the turning spray pipe 14. The positioning blocks 11 are connected by transmission hoses 13. Liquid inlet pipes 8 are arranged on both sides of the top disc 1, and the top ends of the transmission hoses 13 are communicated with the liquid inlet pipes 8. Liquid guide pipes 12 are horizontally arranged on the holding bucket 3 and the connecting piece 22. A plurality of spray blocks 9 are arranged on the outer surface of the liquid guide pipe 12, and the bottom end of the transmission hose 13 is connected to the liquid guide pipe 12.

[0034] Working principle: when the grab needs to be opened, the first motor 5 rotates, and the two sides of the take-up roller 24 rotate synchronously under the connection of the synchronous belt 23. The pull rope 6 starts to release the rope downward, and the hydraulic push rod 4 starts to extend downward. At this time, the lifting block 7 starts to move downward, and the connecting piece 22 is pushed during the movement. The connecting piece 22 will open the grab arms 2 on both sides outward during the pushing process, and the holding bucket 3 will gradually open.

[0035] When the grab needs to be grabbed, the control hydraulic push rod 4 is retracted upward, and the first motor 5 starts to rotate reversely. The take-up roller 24 starts to wind the pull rope 6, and the hydraulic push rod 4 and the pull rope 6 rise at the same time, which can speed up the closing efficiency of the holding bucket 3, realize power complementation in the grabbing process of the grab, reduce the energy consumption of the hydraulic system, and when the cooperation of the two fails, the pull rope 6 can still maintain the partially closed state of the grab through the mechanical structure to prevent falling objects. When the lifting rope is broken, the hydraulic push rod 4 can lock the grab in an emergency.

[0036] When the part of the grab bucket is used for marine operation, a large amount of salt is adhered on the parts, when the grab bucket completes the grabbing work, the external cleaning liquid is controlled to enter from the two liquid inlet pipes 8, the liquid inlet pipe 8 will be divided into two parts, one part of the liquid will flow into the transmission hose 13, another part of the liquid will flow into the guide pipe 12, and then be sprayed in the atomized state through the spraying block 9 and the spraying rotating beads respectively, the spraying rotating beads will continuously flush the parts such as the lifting block 7, the hydraulic push rod 4 and the pull rope 6, and the spraying block 9 will simply atomize and spray the inside of the holding bucket 3, in the process of spraying and flushing, the holding bucket 3 can be controlled to be opened and closed in a cycle, so that multiple positions can be flushed; when the holding bucket 3 is in the opened state during the flushing, the first telescopic rod 10 can be controlled to be extended, the rack 16 is pushed forward, under the meshing of the first gear 18, the rotating spraying pipe 14 is rotated, at this time, the spraying rotating beads spray outward, and the outer wall surface of the holding bucket 3 is simply sprayed.

[0037] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0038] The standard parts used in the application can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the mechanical parts and equipment adopt the conventional types in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0039] The above is only the preferred specific embodiment of the application, but the protection scope of the application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A single-cylinder wireless remote control grab bucket structure, characterized in that: include: A top plate (1) is provided, wherein a grab arm (2) is installed on the bottom side of the top plate (1), and a holding bucket (3) is connected to one side of the grab arm (2). A hydraulic push rod (4) is also installed in the top plate (1), and a lifting block (7) is connected to one end of the hydraulic push rod (4). A lower rotating wheel (15) is installed on the lifting block (7), and an upper rotating wheel (17) is provided on the top end of the lower rotating wheel (15). A pull rope (6) is connected to the lower rotating wheel (15) and the upper rotating wheel (17). A steering spray pipe (14) is installed on the side wall surface of the grab arm (2), and a transmission hose (13) is also provided on the outside of the grab arm (2). The bottom end of the transmission hose (13) is connected to a liquid guide pipe (12), and a spray block (9) is installed on the outside of the liquid guide pipe (12).

2. A single-cylinder wireless remote control grab bucket structure according to claim 1, characterized in that: The grab arms (2) are provided with two groups, and the two groups of grab arms (2) are symmetrically installed on both sides of the top plate (1). The top ends of the grab arms (2) are rotatably connected to the top plate (1), and the bottom ends of the grab arms (2) are connected with connecting pieces (22). The two containing buckets (3) are provided with two groups, and the two containing buckets (3) are symmetrically installed on the bottom edges of the two groups of connecting pieces (22). The two containing buckets (3) are closed and connected.

3. A single-cylinder wireless remote control grab bucket structure according to claim 2, characterized in that: A central groove is formed through the top plate (1), the hydraulic push rod (4) is installed in the central groove, the lifting block (7) is connected to the telescopic end of the hydraulic push rod (4), circular limit blocks are installed on both sides of the lifting block (7), the top end of the connecting piece (22) is rotatably connected to the outside of the limit block, and a plurality of tilting rods are fixed on both sides of the connecting piece (22), and the other end of the tilting rod is welded and installed on the inner wall surface of the containing bucket (3).

4. The single-cylinder wireless remote control grab bucket structure according to claim 1, characterized in that: A plurality of lower rotating wheels (15) are horizontally mounted on both sides of the telescopic end of the hydraulic push rod (4), and the base of the lower rotating wheel (15) is fixedly mounted on the top surface of the lifting block (7). A plurality of upper rotating wheels (17) are also provided, and all are obliquely mounted on the bottom surface of the top plate (1). The bottom end of the pull rope (6) is fixedly mounted on the lifting block (7) and then wound around the outer surfaces of the upper rotating wheel (17) and the lower rotating wheel (15) in sequence.

5. The single-cylinder wireless remote control grab bucket structure according to claim 4, characterized in that: Two fixed blocks (19) are symmetrically mounted on the top surface of the top plate (1), the fixed blocks (19) being located on both sides of the hydraulic push rod (4), and a take-up roller (24) being rotatably connected in the fixed blocks (19), the fixed blocks (19) being located in the middle of the take-up roller (24), a first motor (5) being mounted on one end of one of the take-up rollers (24), and a synchronous belt (23) being connected to the other end, the other end of the synchronous belt (23) being connected to the other take-up roller (24), and the two take-up rollers (24) moving synchronously.

6. The single-cylinder wireless remote control grab bucket structure according to claim 5, characterized in that: The top plate (1) is provided with a plurality of through holes, and a protective block (21) is fixedly installed on the top of the through hole, and the protective block (21) includes a mounting seat, an upper contact roller (211) and a lower contact roller (212), and the mounting seat is fixed on the top plate (1). Two lower contact rollers (212) are vertically arranged, and both lower contact rollers (212) are connected to the bottom layer of the mounting seat in a rolling manner. Two upper contact rollers (211) are horizontally arranged, and the upper contact roller (211) is connected to the top layer of the mounting seat in a rolling manner. The pull rope (6) is connected to the upper contact roller (211) and the lower contact roller (212), and the top end of the pull rope (6) is connected to the outer surface of the take-up roller (24).

7. The single-cylinder wireless remote control grab bucket structure according to claim 1, characterized in that: A plurality of liquid outlet ends are symmetrically mounted on the inner wall surface of the grab arm (2), a steering spray pipe (14) is horizontally arranged between two corresponding liquid outlet ends, the steering spray pipe (14) and the liquid outlet end are rotatably connected, a plurality of adjustable spray beads are arranged and mounted on the steering spray pipe (14), a first gear (18) is mounted on the outer surface of one end of the steering spray pipe (14), a pushing rack (16) is connected to the bottom side of the first gear (18), a limit strip (20) is mounted on the top and bottom surfaces of one side of the pushing rack (16), the limit strip (20) is fixedly mounted on the grab arm (2), a first telescopic rod (10) is also mounted on the inner wall surface of the grab arm (2), the telescopic end of the first telescopic rod (10) is connected to the top of the pushing rack (16).

8. The single-cylinder wireless remote control grab bucket structure according to claim 7, characterized in that: A plurality of positioning blocks (11) are arranged and installed on the outer wall surface of the grab arm (2), the positioning blocks (11) are adapted to the position of the liquid outlet end, and the two are connected by a pipeline, and a transmission hose (13) is connected between the positioning blocks (11), and a liquid inlet pipe (8) is provided on both sides of the top plate (1), and the top end of the transmission hose (13) is connected to the liquid inlet pipe (8), and a liquid guide pipe (12) is horizontally installed on the containing bucket (3) and the connecting piece (22), and a plurality of spraying blocks (9) are arranged and installed on the outer surface of the liquid guide pipe (12), and the bottom end of the transmission hose (13) is connected to the liquid guide pipe (12).

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