Electromagnetic adsorption anti-deflection trash-cleaning grab bucket
By installing electromagnetic chucks and rotating rakes on the cleaning grab bucket, the problem of unstable position of the cleaning grab bucket under turbulent water flow was solved, achieving the effect of stable cleaning and safe grabbing of debris on the trash rack.
Patent Information
- Application Number
- CN202423189104.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing cleaning grabs are difficult to maintain a stable relative position with the trash rack in turbulent water flow environments. They are prone to detaching from the rack surface, shaking, or tilting, posing a safety risk.
The anti-sway cleaning grab bucket uses electromagnetic adsorption. The electromagnetic chuck provides adsorption force as the garbage rack descends, ensuring a close fit between the grab bucket and the garbage rack. Combined with the rotating rake device and shovel tooth structure, it achieves stable cleaning.
Under turbulent water flow conditions, the relative position of the cleaning grab and the trash rack is kept stable, improving the cleaning effect and safety, and making the grabbing of debris more secure and efficient.
Smart Images
Figure CN223675411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cleaning equipment for water conservancy and hydropower projects. Specifically, it relates to a cleaning grab with an electromagnetic adsorption grid surface to resist the impact of turbulent water flow such as inlet vortex. Background Technology
[0002] A cleaning grab bucket is a mechanical device used to remove debris (generally referred to as dirt) attached to the surface of the trash rack at the inlet of a water conservancy and hydropower project and in the vicinity of the rack. In reservoirs, rivers, or water conservancy and hydropower projects with a large amount of dirt, it is often necessary to install cleaning grab buckets to ensure the permeability of the trash rack and its safe and reliable operation, so as to clean the trash rack in a timely manner, ensure the safe operation of the equipment, and reduce power generation losses.
[0003] After entering the opening of the trash rack, the existing cleaning grab bucket generally needs to be guided by the guide device on the cleaning grab bucket to rise and fall along the grab bucket guide channel set on the trash rack, so as to ensure the relative position of the cleaning grab bucket and the trash rack is stable, so as to clean the dirt on the trash rack.
[0004] like Figure 1 As shown, existing water conservancy and hydropower project inlet trash racks generally adopt a vertical structure. If there is no dedicated guide channel for the trash grab bucket in front of the rack, and the two sides of the orifice are curved or the distance between the two ends of the orifice is too small to easily install a guide device that guides the rack surface and the side wall of the orifice, when there is turbulent water flow such as transverse or vortex at the inlet, the grab bucket is difficult to ensure a stable relative position with the trash rack. This can easily cause the trash grab bucket to detach from the rack surface, shake continuously, tilt, or even be sucked into the adjacent orifice, posing a safety risk. Utility Model Content
[0005] Based on the above-mentioned technical problems, this utility model proposes an electromagnetic adsorption anti-sway cleaning grab bucket. During the cleaning process of descending along the surface of the trash rack, the device uses additional electromagnetic attraction to ensure that the equipment adheres to the surface of the trash rack, so as to ensure that the relative position of the cleaning grab bucket and the trash rack is stable during the descent of the cleaning grab bucket under the turbulent water flow of the vortex, thereby improving the cleaning effect.
[0006] The utility model provides an electromagnetic adsorption anti-deviation clean-up grab bucket, comprising: grab bucket main body, rotary harrow device, electromagnetic adsorbing disc, hydraulic cylinder, shovel tooth, the upper end of grab bucket main body is connected with hoisting device through connecting device, the rear side of grab bucket main body is equipped with a plurality of electromagnetic adsorbing disc, and is adsorbed on the one side of trash rack through the magnetic force of electromagnetic adsorbing disc, rotary harrow device is a plurality of evenly distributed harrow tooth fixed on rotary harrow frame, rotary harrow frame is hinged in the front side of the lower part of grab bucket main body, the both ends of hydraulic cylinder are hinged on grab bucket main body and rotary harrow frame respectively, a plurality of evenly distributed shovel tooth is fixed on the lower end of grab bucket main body, the shovel tooth all inserts the clearance between the upper grid bar of trash rack, and each shovel tooth corresponds a harrow tooth, and the harrow tooth on rotary harrow device rotates and can be contacted with the shovel tooth and forms closure.
[0007] Preferably, the grab bucket main body is a square frame composed of upper truss, lower truss and vertical frame, a plurality of vertical frames are vertically arranged between the upper truss and the lower truss, and the rotary harrow frame is hinged to the lower part of the lower truss.
[0008] Preferably, a plurality of electromagnetic adsorbing discs are evenly arranged on the rear side of the upper truss and the lower truss.
[0009] Preferably, the rear side of the grab bucket main body is further provided with a plurality of pulleys, and the pulleys are in close contact with the grid bars and slide up and down along the grid bars.
[0010] Preferably, the shovel tooth is inclined to the rear side of the grab bucket main body, and the rear section of the shovel tooth is inserted between the grid bars.
[0011] Beneficial effects: in the utility model, the setting of the electromagnetic adsorbing disc provides an effective fulcrum for the clean-up grab bucket, when cleaning the trash in the unguided trash rack aperture, the clean-up grab bucket can be in a relatively safe and reliable position, and will not be dislocated due to the impact force of water flow when cleaning the trash under water, so that the trash on the trash rack can be cleaned more cleanly, and the safety during cleaning is ensured; secondly, the cooperation of the rotary harrow device and the shovel tooth can firmly grasp various sundries, and the clean-up effect is improved; finally, the setting of the pulley makes the grab bucket lifting more stable. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 A structure schematic view showing the application of the utility model is shown;
[0013] Figure 2 A structure schematic view showing the application of the utility model is shown; Figure 1 A local enlarged schematic view of A in the structure schematic view is shown;
[0014] Figure 3 A side view structure schematic view of the utility model is shown;
[0015] Figure 4The front view structure schematic diagram of the utility model is shown.
[0016] Figure 5 The rear view structure schematic diagram of the utility model is shown. DETAILED DESCRIPTION
[0017] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described in detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0018] As Figures 1-5 The utility model discloses a kind of electromagnetic adsorption anti-deviation trash grabbing bucket, the grab bucket includes grab bucket main body 1, rotary harrow device 2, electromagnetic chuck 3, hydraulic cylinder 6, shovel tooth 7.
[0019] Grab bucket main body 1 rear side is equipped with multiple electromagnetic chucks 3, and the device is when working, electromagnetic chuck 3 adsorbs one side of barrier 9 or dam 11 pre-embedded parts etc., electromagnetic chuck 3 can provide an adjustable and the suction force in the direction of barrier 9, so that it can be close to barrier 9, will not be impacted by water flow and cause grab bucket misplacement, ensure the accuracy of grabbing position.
[0020] Electromagnetic chuck 3 is electromagnet, and is connected with the power system of the device, adjusts the magnetic force of the electromagnet by controlling current size, to adjust the appropriate suction force of electromagnetic chuck 3.
[0021] Rotary harrow device 2 is that multiple uniform distribution rakes 201 are fixed on rotary harrow frame 202, rake 201 is bucket tooth, rotary harrow frame 202 is hinged in the front side of the lower part of grab bucket main body 1, multiple hinge points can be set and uniformly distributed, both ends of hydraulic cylinder 6 are hinged on grab bucket main body 1 and rotary harrow frame 202, the rotation of rotary harrow device 2 is controlled by the extension and contraction of hydraulic cylinder 6, realizes grabbing action, and the extension or contraction of hydraulic cylinder 6 is controlled by the hydraulic oil tank 8 by pipeline outputting hydraulic oil.
[0022] Multiple uniform distribution shovel teeth 7 are fixed on the lower end of grab bucket main body 1, and shovel tooth 7 is inserted into the gap between grid bar 10 on barrier 9, each shovel tooth 7 corresponds to a rake 201, and the rake 201 on rotary harrow device 2 can be contacted with shovel tooth 7 to form closure by rotating, so that it can firmly grab dirt and sundries.
[0023] The working process of the device is as follows:
[0024] Firstly, the device is driven by the corresponding lifting device to fall in the underwater direction, when falling to the appropriate height, the electromagnetic suction disc 3 is powered on at this time, the appropriate suction force is selected by adjusting the current size, so that the grab bucket body 1 can be close to the trash rack 9, continue to control the grab bucket body 1 to fall in the underwater direction, the pulley 4 slides along the grid bar 10 of the trash rack 9, when the grab bucket body 1 is in the water, the thrust of the water flow and other resistance is not enough to overcome the suction force of the electromagnetic suction disc 3 to the trash rack 9, so the grab bucket will be in a relatively stable position and continue to fall underwater, during this process, the spade tooth 7 will clean the trash between the grid bars 10 of the trash rack 9, when falling to the specified height, the rake tooth 201 is closed with the spade tooth 7 to grab the trash, so as to achieve the effect of cleaning the trash.
[0025] As a further improvement, the grab bucket body 1 is a square frame composed of an upper truss 101, a lower truss 102 and vertical frames 103, the upper end of the upper truss 101 is connected with the lifting device through the connecting device 5, which is used to realize the lifting operation of the grab bucket, a plurality of vertical frames 103 are vertically arranged between the upper truss 101 and the lower truss 102, the rotary rake 202 is hinged to the lower part of the lower truss 102, and a hydraulic cylinder 6 is hinged to the front side of each vertical frame 103, which enhances the stability and strength of the grab bucket.
[0026] A plurality of electromagnetic suction discs 3 are uniformly arranged on the rear side of the upper truss 101 and the lower truss 102, which ensures uniform distribution of suction force and improves the anti-oscillation effect.
[0027] A plurality of electromagnetic suction discs 3 are uniformly arranged on the rear side of the upper truss 101 and the lower truss 102, which ensures uniform distribution of suction force and improves the anti-oscillation effect.
[0028] The spade tooth 7 is inclined to the rear side of the grab bucket body 1, and the rear section is inserted into the gap between the grid bars 10, which improves the accuracy and efficiency of grabbing, and the spade tooth 7 can also be arranged in a detachable structure and the inclination angle can be adjusted to meet the cleaning work between grid bars 10 of different widths.
[0029] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An electromagnetic adsorption anti-sway cleaning grab bucket, characterized in that, include: The grab bucket body comprises a rotating rake device, electromagnetic chucks, a hydraulic cylinder, and shovel teeth. The upper end of the grab bucket body is connected to a lifting device via a connecting device. Multiple electromagnetic chucks are provided on the rear side of the grab bucket body, and the grab bucket body is magnetically attached to one side of the trash rack. The rotating rake device consists of multiple evenly distributed rake teeth fixed on a rotating rake frame, which is hinged to the front side of the lower part of the grab bucket body. The two ends of the hydraulic cylinder are respectively hinged to the grab bucket body and the rotating rake frame. Multiple evenly distributed shovel teeth are fixed to the lower end of the grab bucket body. Each shovel tooth is inserted into the gap between the bars of the trash rack, and each shovel tooth corresponds to one rake tooth. The rotating rake tooth on the rotating rake device can rotate to contact the shovel tooth and form a closed loop.
2. The electromagnetic adsorption anti-sway cleaning grab bucket according to claim 1, characterized in that, The grab bucket body is a square frame composed of an upper truss, a lower truss, and vertical frames. Multiple vertical frames are vertically arranged between the upper truss and the lower truss. The rotating rake frame is hinged to the lower part of the lower truss. A hydraulic cylinder is hinged to the front side of each vertical frame.
3. The electromagnetic adsorption anti-sway cleaning grab bucket according to claim 2, characterized in that, Multiple electromagnetic chucks are evenly arranged on the rear side of the upper truss and the lower truss.
4. The electromagnetic adsorption anti-sway cleaning grab bucket according to claim 1, characterized in that, The grab bucket body is also provided with several pulleys on its rear side, and the pulleys are close to the grid bars and slide up and down along the grid bars.
5. The electromagnetic adsorption anti-sway cleaning grab bucket according to claim 1, characterized in that, The shovel teeth are inclined toward the rear side of the grab body.