CN213682261U

CN213682261U - Grab bucket for underground continuous wall construction

Info

Publication number: CN213682261U
Application number: CN202022601071.0U
Authority: CN
Inventors: 孙占峰; 彭为国; 王继征; 谢彬; 李苗; 张月
Original assignee: China Railway 25th Bureau Group Co Ltd; Fifth Engineering Co Ltd of China Railway 25th Bureau Group Co Ltd
Current assignee: China Railway 25th Bureau Group Co Ltd; Fifth Engineering Co Ltd of China Railway 25th Bureau Group Co Ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-07-13
Anticipated expiration: 2030-11-11

Abstract

The application discloses a grab bucket for underground continuous wall construction, which relates to the field of engineering machinery, and adopts the technical scheme that the grab bucket comprises a connecting plate, a rotating assembly arranged at the bottom end of the connecting plate, a driving piece for providing power for the rotating assembly, a supporting plate arranged at the bottom end of the rotating assembly, a connecting bucket arranged at the bottom end of the supporting plate, a first grab bucket body fixed at one end of the connecting bucket, a second grab bucket body connected to the other end of the connecting bucket in a sliding manner, and a driving assembly for driving the second grab bucket body to move; the rotating assembly comprises a connecting frame fixed at the bottom end of the connecting plate, a rotating shaft fixed at the top end of the connecting hopper, a worm wheel coaxially rotating with the rotating shaft and a worm meshed with the worm wheel, and the driving piece drives the worm to rotate. This application has the effect that improves the grab bucket and use the flexibility.

Description

Grab bucket for underground continuous wall construction

Technical Field

The application relates to the field of engineering machinery, in particular to a grab bucket for underground diaphragm wall construction.

Background

The underground continuous wall is a foundation engineering, and adopts a trenching machine on the ground, and under the condition of slurry wall protection, a long and narrow deep groove is excavated along the peripheral axis of the deep excavation engineering, after the groove is cleaned, a steel reinforcement cage is hung in the groove, then underwater concrete is poured by using a conduit method to construct a unit groove section, and the steps are carried out section by section, so that a continuous reinforced concrete wall is constructed underground to be used as a structure for intercepting water, preventing seepage, bearing and retaining water. In the grooving process of diaphragm wall, need use the grab bucket, among the prior art, the position is fixed when using for the rotary bucket, is difficult to adjust the angle of grab bucket according to the demand of snatching the material.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, the utility model aims to provide a grab bucket is used in underground continuous wall construction can adjust the angle of grab bucket, improves the flexibility that the grab bucket used.

In order to achieve the purpose, the application provides the following technical scheme: a grab bucket for underground continuous wall construction comprises a connecting plate, a rotating assembly arranged at the bottom end of the connecting plate, a driving piece for providing power for the rotating assembly, a supporting plate arranged at the bottom end of the rotating assembly, a connecting bucket arranged at the bottom end of the supporting plate, a first grab bucket body fixed at one end of the connecting bucket, a second grab bucket body connected to the other end of the connecting bucket in a sliding manner and a driving assembly for driving the second grab bucket body to move; the rotating assembly comprises a connecting frame fixed at the bottom end of the connecting plate, a rotating shaft fixed at the top end of the connecting hopper, a worm wheel coaxially rotating with the rotating shaft and a worm meshed with the worm wheel, and the driving piece drives the worm to rotate.

Through adopting above-mentioned technical scheme, the runner assembly drives the connecting bucket and rotates, is convenient for rotate the position of snatching of grab bucket, is convenient for change to the operating mode of difference, and worm gear's auto-lock structure can make the connecting bucket keep steady after rotating simultaneously.

The application is further configured to: the driving assembly comprises a fixed block fixed on the connecting bucket, a screw rod which is rotatably connected with the fixed block and horizontally arranged, a sliding block in threaded connection with the screw rod, and a sliding motor driving the screw rod to rotate, and the sliding block is fixedly connected with the second grab bucket body.

Through adopting above-mentioned technical scheme, the second grab bucket body is through the mode of horizontally removing to the direction motion of being close to or keeping away from first grab bucket body, can reduce the raw materials that two grab bucket bodies dropped in the closure in-process, improves the effect of snatching of grab bucket.

The application is further configured to: the connecting hopper is fixed with a reinforcing block, a groove is formed between the reinforcing block and the connecting hopper (and a convex block sliding in the groove is fixed on the sliding block).

Through adopting above-mentioned technical scheme, the lug slides in the recess, and the boss supports the sliding block, reduces the sliding block to the pressure that the screw rod was applyed, the sliding of the sliding block of being convenient for to reduce the deformation to the screw rod.

The application is further configured to: the driving assembly further comprises a shell, and the fixed block, the screw rod and the sliding block are all located inside the shell; the bottom of shell has seted up the spout, and the spout supplies the slip of sliding block.

Through adopting above-mentioned technical scheme, the shell can protect screw rod and sliding block, reduces external environment to the influence of relative motion between screw rod and the sliding block.

The application is further configured to: the top of shell is fixed with the connecting block, is fixed with the spliced pole on the connecting hopper, and the spliced pole can pass the connecting block, and threaded connection has the nut on the spliced pole.

Through adopting above-mentioned technical scheme, the shell is connected with dismantling between the connecting bucket, is convenient for dismantle the shell and maintain screw rod and sliding block.

To sum up, the beneficial technical effect of this application does:

1. the rotating assembly drives the connecting bucket to rotate, so that the grabbing position of the grab bucket can be conveniently rotated, the grab bucket can be conveniently changed according to different working conditions, and meanwhile, the connecting bucket can be kept stable after the rotating by the self-locking structure of the worm and gear;

2. the second grab bucket body moves towards the direction close to or away from the first grab bucket body in a horizontal moving mode, so that raw materials falling off from the two grab bucket bodies in the folding process can be reduced, and the grabbing effect of the grab buckets is improved;

3. the shell can protect screw rod and sliding block, reduces external environment to the influence of relative motion between screw rod and the sliding block.

Drawings

FIG. 1 is a schematic view of the overall structure of a grab bucket;

FIG. 2 is a schematic view of a rotating assembly;

FIG. 3 is a schematic structural diagram of a drive assembly;

fig. 4 is a cross-sectional view embodying a drive assembly.

In the figure: 1. a connecting plate; 11. a fixing plate; 2. a rotating assembly; 21. a connecting frame; 22. a rotating shaft; 23. a worm gear; 24. a worm; 25. a housing; 3. a steering motor; 4. a support plate; 5. a connecting hopper; 51. connecting columns; 6. a first grab body; 7. a second grab body; 8. a drive assembly; 81. a housing; 811. a chute; 812. connecting blocks; 813. a nut; 82. a fixed block; 83. a screw; 84. a slider; 841. a bump; 85. a slide motor; 86. a reinforcing block; 861. and (4) a groove.

Detailed Description

The present application is described in further detail below with reference to the attached figures.

Example (b): the utility model provides a grab bucket for underground continuous wall construction, refer to figure 1, including connecting plate 1, the rotating assembly 2 of setting in connecting plate 1 bottom, for rotating assembly 2 provides the steering motor 3 of power, the setting is at backup pad 4 of rotating assembly 2 bottom, the connecting bucket 5 of setting in backup pad 4 bottom, fix the first grab bucket body 6 in connecting bucket 5 one end, sliding connection is at the second grab bucket body 7 of the connecting bucket 5 other end and drive the drive assembly 8 of the motion of second grab bucket body 7. The top end of the connecting plate 1 is fixed with a fixing plate 11 which is fixedly connected with a trenching machine. The steering motor 3 is fixed to the support plate 4.

Referring to fig. 1 and 2, the rotating assembly 2 includes a connecting frame 21 fixed at the bottom end of the connecting plate 1, a rotating shaft 22 fixed at the top end of the connecting bucket 5, a worm wheel 23 rotating coaxially with the rotating shaft 22, a worm 24 engaged with the worm wheel 23, and a housing 25 fixed on the supporting plate 4.

The top end of the connecting frame 21 is fixedly connected with the connecting plate 1, and the bottom end is fixedly connected with the supporting plate 4; a cavity for placing a worm wheel 23 and a worm 24 is reserved between the connecting plate 1 and the supporting plate 4; the connecting hopper 5 is rotatably connected below the supporting plate 4. The worm wheel 23 and the worm 24 are located inside the housing 25. The steering motor 3 drives the worm 24 to rotate, and the rotation of the worm 24 drives the worm wheel meshed with the worm 24 to rotate, so as to drive the rotating shaft 22 to rotate and the connecting hopper 5 to rotate.

Referring to fig. 3 and 4, the driving assembly 8 includes a housing 81 fixed to the connecting hopper 5, a fixing block 82 fixed to the connecting hopper 5 and located inside the housing 81, a screw 83 rotatably connected to the fixing block 82 and horizontally disposed, a sliding block 84 threadedly connected to the screw 83, a sliding motor 85 driving the screw 83 to rotate, and a reinforcing block 86 reinforcing the sliding block 84.

The bottom end of the shell 81 is provided with a sliding chute 811, and the sliding chute 811 is used for sliding of the sliding block 84; the top of shell 81 is fixed with connecting block 812, is fixed with spliced pole 51 on the connecting hopper 5, and connecting pole 51 can pass connecting block 812, and threaded connection has nut 813 on spliced pole 51, fixes connecting block 812.

The top end of the sliding block 84 is in threaded connection with the screw 83, the bottom end of the sliding block is fixedly connected with the second grab bucket body 7, and the sliding block 84 moves to drive the second grab bucket body to move. The bottom end of the sliding block 84 is fixed with a bump 841, a groove 861 for placing the bump 841 is formed between the reinforcing block 85 and the connecting bucket 5, and the bump 841 is clamped into the groove 861 to increase the connection stability of the sliding block 84.

During the use, drive the rotation of screw rod 83 through slide motor 85, and then drive the removal with screw rod 83 threaded connection's sliding block 84 to drive the removal of second grab bucket body 7, realize opening and closing of grab bucket.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a grab bucket is used in underground continuous wall construction which characterized in that: the device comprises a connecting plate (1), a rotating assembly (2) arranged at the bottom end of the connecting plate (1), a driving piece for providing power for the rotating assembly (2), a supporting plate (4) arranged at the bottom end of the rotating assembly (2), a connecting bucket (5) arranged at the bottom end of the supporting plate (4), a first grab bucket body (6) fixed at one end of the connecting bucket (5), a second grab bucket body (7) connected to the other end of the connecting bucket (5) in a sliding manner, and a driving assembly (8) for driving the second grab bucket body (7) to move; the rotating assembly (2) comprises a connecting frame (21) fixed at the bottom end of the connecting plate (1), a rotating shaft (22) fixed at the top end of the connecting hopper (5), a worm wheel (23) coaxially rotating with the rotating shaft (22) and a worm (24) meshed with the worm wheel (23), and the driving piece drives the worm (24) to rotate.

2. The grab bucket for underground diaphragm wall construction according to claim 1, wherein: drive assembly (8) including fix fixed block (82) on connecting bucket (5), rotate with fixed block (82) and screw rod (83) that the level set up, with screw rod (83) threaded connection's sliding block (84) and drive screw rod (83) pivoted sliding motor (85), sliding block (84) and second grab bucket body (7) fixed connection.

3. The grab bucket for underground diaphragm wall construction according to claim 2, wherein: reinforcing blocks (86) are fixed on the connecting hopper (5), grooves (861) are formed between the reinforcing blocks (86) and the connecting hopper (5), and convex blocks (841) which slide in the grooves (861) are fixed on the sliding blocks (84).

4. The grab bucket for underground diaphragm wall construction according to claim 3, wherein: the driving assembly (8) further comprises a shell (81), and the fixed block (82), the screw rod (83) and the sliding block (84) are all located inside the shell (81); the bottom end of the shell (81) is provided with a sliding groove (811), and the sliding groove (811) is used for sliding of the sliding block (84).

5. The grab bucket for underground diaphragm wall construction according to claim 4, wherein: the top of shell (81) is fixed with connecting block (812), is fixed with spliced pole (51) on connecting hopper (5), and spliced pole (51) can pass connecting block (812), and threaded connection has nut (813) on spliced pole (51).