Full-cross three-petal hydraulic cleaning grab

Abstract

The utility model discloses a full cross three -piece formula hydraulic pressure cleaning dirt grab bucket, including mounting bracket, the bottom fixed mounting of mounting bracket has a plurality of fixed claw tooth, the lateral wall of mounting bracket is hinged through the hinging piece and is hinged with three groups of hydraulic cylinders, and each group of hydraulic cylinders is two, and the output of each group two hydraulic cylinders is hinged with arc -shaped frame through hinging piece in common, and the length of mounting bracket can be designed according to demand, satisfies the demand of large -span dam cleaning dirt, reduces the equipment displacement frequency, improves the operation efficiency, and three groups of mobile claw tooth can start together or separately, adapts different pollutant distribution scene, reduces energy consumption, and detection block realizes the spacing of cable and prevents the cable from falling off, and can clamp and limit in time when the cable breaks, avoids the safety accident, improves equipment operation stability, and detection block adopts half -shell bolt connection structure, and the internal speed detector, electric telescopic rod and other components are convenient for overhauling replacement.

Description

Technical Field

[0001] This utility model relates to the field of cleaning grabs, specifically to a full-span three-lobed hydraulic cleaning grab. Background Technology

[0002] In water conservancy projects, urban sewage treatment, hydropower stations, and industrial circulating water systems, bar screen cleaning is a key link to ensure unobstructed fluid channels and safe equipment operation. As the core execution component, the bar screen grab's grabbing efficiency, waste retention rate, and adaptability directly determine the effectiveness and cost of the cleaning operation.

[0003] There are various models of existing cleaning grabs. In water conservancy dams, the barrier screens are very long, and the cleaning grabs can only clean in stages. That is, they clean a little bit first, and then use a traveling vehicle to move and clean again until the work is completed. The work efficiency does not meet the usage requirements.

[0004] Therefore, there is a need for a full-span grab that can improve work efficiency and meet the usage requirements of different scenarios. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a full-span three-lobed hydraulic grab for cleaning debris.

[0006] This utility model is achieved through the following technical solution: A full-span three-lobed hydraulic grab bucket includes a mounting frame. Several fixed claw teeth are fixedly installed on the bottom of the mounting frame. Three sets of hydraulic cylinders are hinged to the side wall of the mounting frame via hinges. Each set of hydraulic cylinders consists of two cylinders. The output ends of the two cylinders in each set are hinged together to an arc-shaped frame via hinges. Several movable claw teeth are fixedly installed at the bottom of each arc-shaped frame. The side wall of each arc-shaped frame is hinged to the side wall of the mounting frame via hinges.

[0007] Preferably, two lifting components are fixedly installed at the top of the mounting frame, and each lifting component is equipped with a pulley above it. Two support frames are fixedly installed at the top of the mounting frame, and each pulley is rotatably connected to the corresponding support frame. A winch is installed on the pulley, and a detection block is installed on the winch. The side wall of the detection block is fixedly connected to the side wall of the support frame.

[0008] Preferably, the mounting frame is equipped with a ladder and a housing, and the housing contains a controller.

[0009] Preferably, the detection block has two through slots, and the cable passes through the corresponding through slots and is slidably connected to them. The detection block is composed of two half-shells, which are fixedly connected by bolts.

[0010] Preferably, the detection block is provided with two mounting slots, which are connected to corresponding through slots. Each mounting slot is equipped with a speed detector, and one side of the speed detector is fitted to the corresponding winch.

[0011] Preferably, the detection block has an installation cavity, a partition is fixedly installed in the installation cavity, an electric telescopic rod is fixedly installed on both sides of the partition, a U-shaped rod is fixedly installed at the output end of each electric telescopic rod, both ends of each U-shaped rod extend into the corresponding installation groove, and an arc-shaped clamping block is fixedly installed at both ends of each U-shaped rod.

[0012] Compared with existing technologies, the advantages of this utility model are: the length of the mounting frame can be designed as needed to meet the cleaning needs of large-span dams, reduce the number of equipment relocations, improve work efficiency, the three sets of moving claws can be started together or separately to adapt to different pollutant distribution scenarios, reduce energy consumption, the detection block not only realizes the limiting and anti-derailment of the winch, but also can clamp and limit it in time when the winch breaks to avoid safety accidents and improve the stability of equipment operation, the detection block adopts a semi-shell bolt connection structure, which facilitates the maintenance and replacement of internal components such as speed detectors and electric telescopic rods. Attached Figure Description

[0013] Figure 1 This is a first-view perspective perspective view of the structure of this utility model; Figure 2 This is the structure of the utility model Figure 1 Structure diagram of the detection block.

[0014] In the diagram: 1. Mounting frame; 2. Hydraulic cylinder; 3. Fixed claw teeth; 4. Arc-shaped frame; 5. Moving claw teeth; 6. Lifting component; 7. Pulley; 8. Windlass; 9. Detection block; 10. Mounting groove; 11. Arc-shaped clamping block; 12. Speed ​​detector; 13. Mounting cavity; 14. Partition plate; 15. Electric telescopic rod; 16. U-shaped rod. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: like Figure 1 , Figure 2 As shown, a full-span three-lobed hydraulic grab bucket includes a mounting frame 1. Several fixed claw teeth 3 are fixedly installed on the bottom of the mounting frame 1. Three sets of hydraulic cylinders 2 are hinged to the side wall of the mounting frame 1 through hinges. Each set of hydraulic cylinders 2 consists of two cylinders. The output ends of the two hydraulic cylinders 2 in each set are hinged to an arc-shaped frame 4 through hinges. Several movable claw teeth 5 are fixedly installed at the bottom end of each arc-shaped frame 4. The side wall of each arc-shaped frame 4 is hinged to the side wall of the mounting frame 1 through hinges.

[0016] Two lifting components 6 are fixedly installed at the top of the mounting frame 1. Each lifting component 6 is equipped with a pulley 7 above it. Two support frames are fixedly installed at the top of the mounting frame 1. Each pulley 7 is rotatably connected to the corresponding support frame. A winch 8 is installed on the pulley 7. A detection block 9 is installed on the winch 8. The side wall of the detection block 9 is fixedly connected to the side wall of the support frame.

[0017] Mounting rack 1 has a ladder and a housing, and the housing contains a controller.

[0018] The detection block 9 has two through slots, and the cable 8 passes through the corresponding through slots and is slidably connected to them. The detection block 9 is composed of two half-shells, which are fixedly connected by bolts.

[0019] The detection block 9 has two mounting slots 10, which are connected to the corresponding through slots. Each mounting slot 10 is equipped with a speed detector 12, and one side of the speed detector 12 is fitted with the corresponding winch 8.

[0020] The detection block 9 has an installation cavity 13, and a partition 14 is fixedly installed in the installation cavity 13. Electric telescopic rods 15 are fixedly installed on both sides of the partition 14. A U-shaped rod 16 is fixedly installed at the output end of each electric telescopic rod 15. Both ends of each U-shaped rod 16 extend into the corresponding installation groove 10. An arc-shaped clamping block 11 is fixedly installed at both ends of each U-shaped rod 16.

[0021] Because the mounting frame 1 is designed to be long enough to directly cover the cleaning area of ​​a large-span dam, the winch 8 is pulled by external hoisting equipment, which moves the entire mounting frame 1 to the cleaning position. The fixed claw teeth 3 initially grip the dam body or pollutants, achieving one-time wide-area cleaning. According to the distribution of pollutants, the controller controls three sets of hydraulic cylinders 2: if overall cleaning is required, the three sets of hydraulic cylinders 2 are controlled to extend and retract synchronously, driving the three sets of moving claw teeth 5 to lift and grip together; if there are more pollutants in a local area, only the corresponding set of hydraulic cylinders 2 is controlled to start, achieving single-set operation of moving claw teeth 5, reducing energy waste. The winch 8 slides in the through groove, and the detection block 9 is fixed on the support frame to limit the lateral displacement of the winch 8 and prevent it from leaving the pulley 7 track. If an accidental break occurs, the speed of its free end will increase sharply. The speed detector 12 transmits the abnormal speed signal to the controller, and the controller immediately controls the electric telescopic rod 15 to extend, pushing U The rod 16 drives the arc-shaped clamping block 11 to move closer to the winch 8 until the two arc-shaped clamping blocks 11 tightly clamp the winch 8, thereby limiting and fixing the winch 8 and preventing the cleaning component from falling.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A full-span three-lobed hydraulic grab bucket for cleaning debris, comprising a mounting frame (1), characterized in that: The bottom of the mounting frame (1) is fixedly equipped with several fixed claw teeth (3). Three sets of hydraulic cylinders (2) are hinged to the side wall of the mounting frame (1) through hinges. Each set of hydraulic cylinders (2) consists of two cylinders. The output ends of the two hydraulic cylinders (2) in each set are hinged together to an arc frame (4) through hinges. Several movable claw teeth (5) are fixedly installed at the bottom end of each arc frame (4). The side wall of each arc frame (4) is hinged to the side wall of the mounting frame (1) through hinges.

2. The full-span three-lobed hydraulic grab bucket according to claim 1, characterized in that: Two lifting components (6) are fixedly installed at the top of the mounting frame (1). Each lifting component (6) is equipped with a pulley (7) above it. Two support frames are fixedly installed at the top of the mounting frame (1). Each pulley (7) is rotatably connected to the corresponding support frame. A winch (8) is installed on the pulley (7). A detection block (9) is installed on the winch (8). The side wall of the detection block (9) is fixedly connected to the side wall of the support frame.

3. The full-span three-lobed hydraulic grab bucket according to claim 1, characterized in that: The mounting frame (1) is equipped with a ladder and a box, and a controller is installed inside the box.

4. A full-span three-lobed hydraulic grab bucket according to claim 2, characterized in that: The detection block (9) has two through slots, and the cable (8) passes through the corresponding through slots and is slidably connected to them. The detection block (9) consists of two half-shells, which are fixedly connected by bolts.

5. A full-span three-lobed hydraulic grab bucket according to claim 4, characterized in that: The detection block (9) is provided with two mounting slots (10), which are connected to the corresponding through slots. Each mounting slot (10) is equipped with a speed detector (12), and one side of the speed detector (12) is fitted with the corresponding winch (8).

6. A full-span three-lobed hydraulic grab bucket according to claim 5, characterized in that: The detection block (9) is provided with an installation cavity (13), and a partition (14) is fixedly installed in the installation cavity (13). Electric telescopic rods (15) are fixedly installed on both sides of the partition (14). A U-shaped rod (16) is fixedly installed at the output end of each electric telescopic rod (15). Both ends of each U-shaped rod (16) extend into the corresponding installation groove (10). An arc-shaped clamping block (11) is fixedly installed at both ends of each U-shaped rod (16).

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