Automatic positioning hydraulic grab bucket grille cleaner
By introducing guide wheels and a switch structure into the hydraulic grab bar screen cleaner, the grab bucket is limited and automatically protected, solving the problems of grab bucket overturning and equipment damage, and improving work efficiency and equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-04-03
AI Technical Summary
Existing hydraulic grab bar screens are prone to tipping over or failing to grab debris when faced with a large amount of debris or excessive buoyancy in the water, resulting in equipment damage and low work efficiency.
An automatic positioning hydraulic grab bar screen cleaner was designed, which adopts a sliding line device, guide rail, gantry frame, moving trolley, grab bucket components and bar screen structure, combined with guide wheels, rails, position switches and over-limit switches to realize the limit and automatic protection of the grab bucket, and prevent the grab bucket from overturning and equipment damage.
It improves the working efficiency of the decontamination machine, ensures the safe operation of the equipment, extends the service life of the equipment, and avoids equipment damage caused by excessive debris or excessive buoyancy in the grab bucket.
Smart Images
Figure CN224078105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rainwater grate treatment devices, specifically to an automatically positioned hydraulic grab grate cleaning machine. Background Technology
[0002] Hydraulic grab bar screens are mainly used in large and medium-sized water plants and pumping stations to intercept large floating objects in the water, ensuring the continued operation of pumps and subsequent projects. In practical applications, due to varying site conditions, when encountering a large amount of debris in the water, or when the buoyancy of the debris is too strong (such as a large amount of aquatic plants, scum, or even wood), the buoyancy of the aquatic plants, scum, wood, etc., inside the grab bucket may far exceed the weight of the grab bucket itself as it slides downwards. In this case, the grab bucket may be unable to descend and may even tip forward, leading to equipment damage and reduced debris removal efficiency. Summary of the Invention
[0003] Technical Problem: The technical problem to be solved by this utility model is to provide an automatically positioned hydraulic grab bar screen cleaner, which ensures that the grab bucket of the cleaner will not tip forward or fail to grab the debris due to excessive debris or excessive buoyancy during operation, thereby improving the working efficiency of the cleaner and ensuring that the equipment will not be damaged and extending its service life.
[0004] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted in this utility model embodiment is as follows:
[0005] An automatically positioned hydraulic grab bar screen includes a sliding line device, a guide rail, a gantry frame, a moving trolley, a grab bucket assembly, and a bar screen. The gantry frame is positioned above the river channel, the guide rail is fixedly connected to the gantry frame, the moving trolley is connected to the guide rail and slides on the guide rail, one end of the sliding line device is positioned on one side of the guide rail, and the other end is connected to the moving trolley; the grab bucket assembly is connected to the moving trolley, and the bar screen is positioned below the gantry frame and inside the river channel; the grab bucket assembly is equipped with guide wheels; and the bar screen is equipped with a track.
[0006] As a preferred embodiment, the mobile trolley is equipped with a hoisting mechanism; the hoisting mechanism includes a swing arm, a wire rope drum, a wire rope, and a pressure block; the wire rope is wound on the wire rope drum; the lower end of the wire rope is connected to the grab bucket component; the swing arm includes an upper swing arm and a lower swing arm; the upper swing arm and the lower swing arm are an integral structure that passes through the wire rope drum; the upper swing arm is located at the upper part of the wire rope drum; the lower swing arm is located at the lower part of the wire rope drum; one end of each of the upper and lower swing arms is connected to the wire rope drum; the pressure block is located at the end of the lower swing arm away from the wire rope drum.
[0007] As a preferred embodiment, the wire rope drum is equipped with an over-limit switch and a stop switch; both the over-limit switch and the stop switch are located at the upper part of the wire rope drum, and when the wire rope falls vertically, the angle between the upper swing arm and the horizontal line is smaller than the angle between the stop switch and the horizontal line; the angle between the stop switch and the horizontal line is smaller than the angle between the over-limit switch and the horizontal line.
[0008] As a preferred embodiment, the grab bucket component further includes a nylon slider; the grid further includes grid bars; the nylon slider is adapted to the grid bars; during operation, the nylon slider slides along the grid bars.
[0009] As a preferred embodiment, there are two guide wheels, which are respectively arranged on both sides of the grab bucket component; there are two tracks, which are respectively arranged on both sides of the grid; the distance between the two guide wheels is equal to the distance between the two tracks.
[0010] As a preferred example, the track is a metal structure with a rectangular cross-section, and the surface of the track is provided with an opening groove, the width of which is smaller than the width of the guide wheel.
[0011] As a preferred example, the inner diameter of the track is wider than the width of the guide wheel; the inner diameter of the track is higher than the height of the guide wheel.
[0012] Beneficial effects: Compared with the prior art, the technical solution of this utility model has the following beneficial effects: Compared with the prior art, the technical solution of this utility model, by setting a limiting structure, allows the dirt collector to smoothly collect debris through the grab bucket without the grab bucket tipping forward and damaging the equipment due to excessive debris or excessive buoyancy; at the same time, through the position switch and over-limit switch, when the grab bucket cannot slide downward due to excessive buoyancy of debris, it can be detected in time and the grab bucket can be retracted and moved upward, improving the working efficiency of the equipment while ensuring the safe operation of the equipment. Attached Figure Description
[0013] Figure 1 This is a front view of the existing structure of an embodiment of this utility model;
[0014] Figure 2 This is a side view of the existing structure of an embodiment of the present utility model;
[0015] Figure 3 This is a front view of the grab bucket component according to an embodiment of the present utility model;
[0016] Figure 4 This is a side view of the grab bucket component according to an embodiment of the present utility model;
[0017] Figure 5 This is a front view of the grab bucket component and the grid in an embodiment of this utility model;
[0018] Figure 6 This is a side view of the grab bucket component and the grid in cooperation according to an embodiment of the present utility model;
[0019] Figure 7 This is a schematic diagram of the hoisting structure on the mobile trolley according to an embodiment of the present invention.
[0020] The diagram includes: 1. Sliding wire device; 2. Guide rail; 3. Gantry frame; 4. Moving trolley; 5. Grab bucket component; 6. Grab grid; 41. Over-limit switch; 42. Position switch; 43. Swing arm; 44. Wire rope drum; 45. Wire rope; 46. Pressure block; 47. Oil pipe drum; 52. Nylon slider; 54. Guide wheel; 61. Grab bar; 62. Track; 431. Upper swing arm; 432. Lower swing arm. Detailed Implementation
[0021] The technical solution of this utility model will now be described in detail with reference to the accompanying drawings.
[0022] like Figure 1 As shown in the figure, an automatic positioning hydraulic grab bar screen cleaner according to an embodiment of the present invention includes a sliding line device 1, a guide rail 2, a gantry frame 3, a moving trolley 4, a grab bucket component 5, and a bar screen 6. The gantry frame 3 is set above the river channel, the guide rail 2 is fixedly connected to the gantry frame 3, the moving trolley 4 is connected to the guide rail 2 and slides on the guide rail 2, one end of the sliding line device 1 is set on one side of the guide rail 2, and the other end is connected to the moving trolley 4; the grab bucket component 5 is connected to the moving trolley 4, the bar screen 6 is set below the gantry frame 3 and is set inside the river channel; the grab bucket component 5 is provided with guide wheels 54; the bar screen 6 is provided with a track 62.
[0023] In the above-described automatic positioning hydraulic grab bar screen cleaner, guide wheels 54 are provided on the grab bucket component 5, and a track 62 is provided on the bar screen 6. The guide wheels 54 and the track 62 cooperate to form a limiting structure, which allows the cleaner to smoothly collect debris through the grab bucket component 5 without damaging the equipment due to excessive debris or excessive buoyancy. At the same time, through the position switch and over-limit switch, when the grab bucket cannot slide downwards due to excessive buoyancy of debris, it can be detected in time, and the grab bucket component 5 can be retracted and moved upwards or the equipment can be stopped in time, improving the working efficiency of the equipment while ensuring the safe operation of the equipment.
[0024] When the cleaning machine is running, the grab bucket component 5 is moved to the appropriate position by the moving trolley 4, and then the hoisting mechanism is activated. Under its own weight, the grab bucket component 5 moves downward via the wire rope 45 and contacts the grid 6. At this time, the guide wheel 54 engages with the track 62 and slides along the track 62, while the nylon slider 52 slides along the grid bars 61. As the grab bucket component 5 continues to slide downward to collect debris, if there is too much debris in the water, or if the buoyancy of the debris exceeds the weight of the grab bucket component 5, the grab bucket component 5 cannot continue to slide downward. Under the limiting effect of the guide wheel 54 and the track 62, the grab bucket will not overturn.
[0025] When the grab bucket component 5 can no longer slide downwards but the wire rope 45 continues to fall, the wire rope 45 is in a slack state. The slider 46 then drives the lower swing arm 432 to gradually approach a vertical position, while the upper swing arm 431 slowly approaches the stop switch 42. When the upper swing arm 431 contacts the stop switch 42, the stop switch 42 sends a signal, and the control system controls the grab bucket component 5 to close the rake and move upwards to clear away the collected debris. This improves the efficiency of equipment operation while ensuring the equipment is not damaged. When the upper swing arm 431 contacts the stop switch 42 but the stop switch 42 does not send a signal, the upper swing arm 431 continues to approach the over-limit switch 41 and eventually contacts it. At this point, the over-limit switch 41 sends a signal, and the control system receives an instruction to immediately stop the equipment. This indicates a problem with the stop switch 42, and it can be inspected after the equipment stops. By setting up the limit switch 42 and the over-limit switch 41, dual protection measures are implemented for the equipment when a problem occurs, ensuring that the equipment will not be damaged, guaranteeing the stability of equipment operation, and extending the service life of the equipment.
[0026] As a preferred embodiment, the mobile trolley 4 is equipped with a hoisting mechanism; the hoisting mechanism includes a swing arm 43, a wire rope drum 44, a wire rope 45, and a pressure block 46; the wire rope 45 is wound around the wire rope drum 44; the lower end of the wire rope 45 is connected to the grab bucket component 5; the swing arm 43 includes an upper swing arm 431 and a lower swing arm 432; the upper swing arm 431 and the lower swing arm 432 are an integral structure that passes through the wire rope drum 44; the upper swing arm 431 is located at the upper part of the wire rope drum 44; the lower swing arm 432 is located at the lower part of the wire rope drum 44; one end of each of the upper swing arm 431 and the lower swing arm 432 is connected to the wire rope drum 44; the pressure block 46 is located at the end of the lower swing arm 432 away from the wire rope drum 44. When the cleaning machine is running normally, the switch is turned on. Since the lower end of the wire rope is connected to the grab bucket component 5, the wire rope 45 falls vertically downward under the weight of the grab bucket component 5. At this time, the pressure block 46 contacts the wire rope 45 to limit the wire rope 45, ensuring that the wire rope 45 is always in a taut state during the fall, thereby ensuring that the grab bucket component 5 can successfully grab debris in the water.
[0027] As a preferred embodiment, the wire rope drum 44 is equipped with an over-limit switch 41 and a stop switch 42. Both the over-limit switch 41 and the stop switch 42 are located on the upper part of the wire rope drum 44. When the wire rope 45 falls vertically, the angle between the upper swing arm 431 and the horizontal line is smaller than the angle between the stop switch 42 and the horizontal line; the angle between the stop switch 42 and the horizontal line is smaller than the angle between the over-limit switch 41 and the horizontal line. When the cleaning machine is operating normally, the pressure block 46 at the bottom of the lower swing arm 432 continuously limits the wire rope 45. At this time, the horizontal height of the upper swing arm 431 is lower than the horizontal height of the stop switch 42. When there are many debris in the water or the buoyancy of the debris is large, and the grab bucket component 5 cannot continue to slide downwards, the wire rope 45 continues to fall, but is no longer in a taut, vertically falling state; instead, it is in a slack state. The pressure block 46, which limits the steel wire rope 45, has a certain width and weight. Therefore, the pressure block 46 gradually tends to be vertical due to gravity. The horizontal height of the lower swing arm 432 decreases, and the horizontal height of the upper swing arm 431 increases. When the upper swing arm 431 rises to a certain horizontal height, the end of the upper swing arm 431 will contact the position switch 42. At this time, the sensing function of the position switch 42 is triggered and the signal is transmitted to the system. The system issues an instruction to make the sludge removal machine start the grab bucket closing rake action and at the same time make the grab bucket component 5 start to move upward to complete the sludge removal work.
[0028] When the end of the upper swing arm 431 contacts the stop switch 42 but the stop switch 42 does not transmit a signal to the system, the horizontal height of the upper swing arm 431 will continue to rise, eventually contacting the over-limit switch 41. At this time, the over-limit switch 41 is triggered and transmits a signal to the system. The system issues an instruction to stop the equipment to avoid damage, and can also determine that the stop switch 42 is malfunctioning. After the equipment stops, it can be repaired. By setting the over-limit switch 41 and the stop switch 42, it is ensured that when the wire rope 45 can no longer descend, the equipment can take timely remedial measures, reducing the probability of equipment damage.
[0029] As a preferred embodiment, the grab bucket component 5 further includes a nylon slider 52; the grid 6 further includes grid bars 61; the nylon slider 52 is adapted to the grid bars 61; during operation, the nylon slider 52 slides along the grid bars 61. During equipment operation, through the settings of the control system, when the grab bucket component 5 moves downward to retrieve debris, the nylon slider 52 can slide downward along the grid bars 61, ensuring the stability of the equipment during normal operation.
[0030] In a preferred embodiment, there are two guide wheels 54, respectively disposed on both sides of the grab bucket component 5; there are two tracks 62, respectively disposed on both sides of the grid 6; the distance between the two guide wheels 54 is equal to the distance between the two tracks 62. When the grab bucket component 5 slides downward and contacts the grid 6, the equal distance between the two guide wheels 54 and the two tracks 62 ensures that the guide wheels 54 are engaged in the tracks 62 and slide downward along the tracks 62, thereby achieving the function of limiting movement.
[0031] As a preferred embodiment, the track 62 is a metal structure with a rectangular cross-section. The surface of the track 62 has an opening groove, the width of which is smaller than the width of the guide wheel 54. The metal structure of the track 62 increases its strength and improves its positioning effect on the grab bucket component 5. The opening groove allows the guide wheel 54 to slide smoothly and steadily up and down within the track 62. Furthermore, the smaller width of the opening groove compared to the guide wheel 54 ensures that if the grab bucket component 5 can no longer descend, the track 62 can firmly hold the guide wheel 54 within itself, preventing the grab bucket component 5 from tipping forward.
[0032] As a preferred embodiment, the inner diameter of the track 62 is wider than the width of the guide wheel 54; the inner diameter of the track 62 is higher than the height of the guide wheel 54. The larger internal dimensions of the track 62 compared to the guide wheel 54 allow the guide wheel to smoothly enter and slide within the track 62 during descent, resulting in more stable and smoother equipment operation.
[0033] 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 specific embodiments described above. The specific embodiments and descriptions in the specification are merely for further illustrating 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 this utility model as claimed. The scope of protection of this utility model is defined by the claims and their equivalents.
Claims
1. An automatically positioned hydraulic grab grate cleaner characterized in that, The utility model provides a riverway cleaning device, including slide wire device (1), guide rail (2), portal frame (3), mobile trolley (4), grab bucket component (5) and grating (6), portal frame (3) sets up the top of riverway, guide rail (2) is fixedly connected with portal frame (3), mobile trolley (4) is connected with guide rail (2), mobile trolley (4) slides on guide rail (2), slide wire device (1) one end sets up in guide rail (2) one side, the other end is connected with mobile trolley (4), grab bucket component (5) is connected with mobile trolley (4), grating (6) sets up below portal frame (3), and sets up inside riverway, be equipped with guide wheel (54) on grab bucket component (5), be equipped with track (62) on grating (6).
2. The decontamination machine of claim 1, wherein, The mobile trolley (4) is provided with a hoisting mechanism; the hoisting mechanism comprises a swing arm (43), a steel wire rope drum (44), a steel wire rope (45) and a pressing block (46); the steel wire rope (45) is wound on the steel wire rope drum (44); the lower end of the steel wire rope (45) is connected with the grab bucket component (5); the swing arm (43) comprises an upper swing arm (431) and a lower swing arm (432); the upper swing arm (431) and the lower swing arm (432) are an integral structure penetrating through the steel wire rope drum (44); the upper swing arm (431) is arranged at the upper portion of the steel wire rope drum (44); the lower swing arm (432) is arranged at the lower portion of the steel wire rope drum (44); one end of each of the upper swing arm (431) and the lower swing arm (432) is connected with the steel wire rope drum (44); the pressing block (46) is arranged at the end of the lower swing arm (432) away from the steel wire rope drum (44).
3. The decontamination machine of claim 2, wherein, The steel wire rope drum (44) is provided with an over-limit switch (41) and a position switch (42); the over-limit switch (41) and the position switch (42) are both arranged at the upper portion of the steel wire rope drum (44); when the steel wire rope (45) falls vertically, the included angle between the upper swing arm (431) and the horizontal line is smaller than the included angle between the position switch (42) and the horizontal line; the included angle between the position switch (42) and the horizontal line is smaller than the included angle between the over-limit switch (41) and the horizontal line.
4. The decontamination machine of claim 1, wherein The grab bucket component (5) further comprises a nylon sliding block (52); the grating (6) further comprises a grating bar (61); the nylon sliding block (52) is matched with the grating bar (61); during operation, the nylon sliding block (52) slides along the grating bar (61).
5. The decontamination machine of claim 1, wherein, The guide wheel (54) is 2 in number and is arranged on both sides of the grab bucket component (5) respectively; the track (62) is 2 in number and is arranged on both sides of the grating (6) respectively; the distance between the two guide wheels (54) is equal to the distance between the two tracks (62).
6. The decontamination machine of claim 5, wherein, The track (62) is a metal structure with a rectangular cross section, and the surface of the track (62) is provided with an open slot, and the width of the open slot is smaller than the width of the guide wheel (54).
7. The decontamination machine of claim 6, wherein, The inner diameter width of the track (62) is greater than the width of the guide wheel (54); the inner diameter height of the track (62) is greater than the height of the guide wheel (54).