Foundry plant sump dewatering robot

Abstract

This utility model relates to the field of robotics technology and discloses a sludge removal robot for a foundry workshop's water storage tank. The robot includes a walking mechanism, a body, and a bucket. The body is located above the walking mechanism, and the bucket is positioned at the front of the body. The walking mechanism includes front and rear wheels and tracks. The bucket has a bucket body, within which a spiral auger rotates. Spiral blades are fixed to the spiral auger, with the blades on both sides rotating in opposite directions. A sludge discharge port is located in the center of the bucket body. A filter screen is installed inside the bucket body, and a drive shaft is located between the filter screen and the spiral auger. A sleeve is fitted onto the drive shaft and threadedly connected to it. The sleeve is slidably connected to the bucket body, and multiple sets of crushing blades are fixed to the sleeve, arranged along the sleeve. Each set of crushing blades includes multiple blades. A tension adjustment mechanism is located on the inner side of the tracks. This utility model solves the problem that existing sludge removal robots are easily clogged by large and hard sludge clumps at the discharge port.

Description

Technical Field

[0001] This utility model relates to the field of robotics technology, specifically to a robot for dredging silt from a water storage tank in a foundry. Background Technology

[0002] Aluminum casting workshops require a large amount of industrial water, so water storage tanks are typically installed for water supply. Currently, these tanks require regular manual cleaning to remove sludge and ensure a proper water supply to the workshop equipment. However, due to the damp, hot, and poorly lit conditions of the tanks, manual cleaning is labor-intensive and inefficient, significantly impacting the cleaning progress.

[0003] Currently, the industry has gradually developed dredging robots to replace manual labor in automated dredging operations. These robots have a bucket at the front, inside which is a spiral auger with oppositely rotating blades on both sides. During dredging, the spiral blades push the silt towards the center of the bucket, where it is discharged through the discharge port. However, due to the long deposition time of silt in reservoirs, large and hard silt clumps inevitably exist. These clumps, when pushed to the discharge port, can easily cause blockages, thus affecting the robot's normal dredging operations. Utility Model Content

[0004] The present invention aims to provide a sludge removal robot for a foundry workshop water storage tank, in order to solve the problem that existing sludge removal robots are easily blocked by large and hard sludge clumps at the discharge port.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sludge removal robot for a casting workshop water storage tank, comprising a walking mechanism, a vehicle body, and a bucket. The vehicle body is located above the walking mechanism, and the bucket is located on the front side of the vehicle body. The walking mechanism includes front wheels and rear wheels, with tracks connecting the front wheels and rear wheels. The bucket has a bucket body, within which a spiral auger is rotatably mounted. Spiral blades are fixed on the spiral auger, and the spiral blades on both sides of the spiral auger rotate in opposite directions. A sludge discharge port is located in the middle of the bucket body, and the sludge discharge port is connected to a discharge pipe, which is connected to a suction pump.

[0006] The bucket is equipped with a filter screen. There are gaps between the filter screen and the discharge port, and between the filter screen and the spiral auger. A drive shaft is provided between the filter screen and the spiral auger. A sleeve is sleeved on the drive shaft and threadedly connected to it. The sleeve is also slidably connected to the bucket body. Multiple sets of crushing blades are fixed on the sleeve. The multiple sets of crushing blades are arranged sequentially along the axial direction of the sleeve. Each set of crushing blades includes multiple blades, which are arranged in a ring array around the axial direction of the sleeve.

[0007] The inner side of the track is equipped with a tension adjustment mechanism for adjusting the track tension.

[0008] The principle and advantages of this solution are as follows: In this solution, the walking mechanism is used to control the robot's movement to perform dredging operations, and the bucket is used to shovel and clean up the silt. The tension adjustment mechanism is used to control the tension or relaxation of the tracks, so as to facilitate the disassembly, assembly, and maintenance of the tracks.

[0009] By installing a filter screen inside the hopper, the sludge at the discharge port is filtered, preventing large and hard sludge clumps from being directly discharged and thus avoiding blockage. Simultaneously, the rotation of the drive shaft causes the sleeve to slide axially along the shaft, moving the crushing blade assembly within the hopper. This crushes large and hard sludge clumps, and the multiple crushing blades sequentially crush the sludge clumps, enhancing the crushing effect and facilitating their removal. With the assistance of the auger, the crushed sludge passes through the filter screen and is discharged from the discharge port, effectively removing the sludge clumps.

[0010] The advantages of this solution are:

[0011] 1. It can prevent large and hard sludge clumps from directly entering the discharge outlet and causing blockage.

[0012] 2. It can break up large and hard sludge clumps, making them easier to clean and enhancing the sludge removal effect.

[0013] 3. The track tension is adjustable, which facilitates the disassembly, assembly, and maintenance of the tracks.

[0014] Preferably, as an improvement, the bucket body is provided with a sandwich layer, and the side wall of the sandwich layer facing the inside of the bucket body is provided with a through hole. Both ends of the drive shaft and both ends of the sleeve pass through the through hole and extend into the sandwich layer. Both ends of the sleeve are threadedly connected to the drive shaft, and both ends of the sleeve are slidably connected to the inner wall of the sandwich layer of the bucket body.

[0015] The above solution places both ends of the drive shaft and the sleeve within the interlayer, and the threaded connection between the sleeve and the drive shaft is also achieved through the threads at both ends. This provides protection and isolation at the connection points, preventing silt from contacting the threaded connections and causing them to fail. Similarly, the two ends of the sleeve are slidably connected to the inner wall of the interlayer of the bucket body. This prevents silt from contacting the sliding connection points, thus ensuring that the sleeve can slide normally on the drive shaft.

[0016] Preferably, as an improvement, a tapered cylinder is fixed on the edge of the through hole. One end of the tapered cylinder connected to the through hole is the large-diameter end, and the other end is the small-diameter end. A scraper ring is provided at the small-diameter end, and the sleeve passes through the scraper ring and the tapered cylinder.

[0017] The above-described scheme, with its conical design, effectively blocks sludge, preventing it from sliding into the interlayer along with the casing. When the casing slides relative to the drive shaft, a portion of the casing enters the interlayer from the bucket body. The small-diameter section of the conical cylinder and the scraper ring scrape off the sludge adhering to this part of the casing, allowing the casing to enter the interlayer more cleanly and preventing sludge from entering and affecting the operation of the structures within the interlayer.

[0018] Preferably, as an improvement, the blades on adjacent crusher blade groups are staggered.

[0019] With the above scheme, each set of crushing blades can crush the sludge clumps from different angles and directions, which helps to improve the treatment effect of the sludge clumps.

[0020] Preferably, as an improvement, the blade has two bevels facing the sides of the bucket body respectively, and the cross-section of the blade is triangular or rhomboid.

[0021] The aforementioned design, with its inclined surface, facilitates the entry of the blades into the sludge clumps, thereby improving the treatment effect. The triangular or rhomboid blades, with pointed ends on both sides, allow for easier entry into the sludge clumps, resulting in rapid breakup and increased efficiency, thus enhancing the degree of sludge fragmentation.

[0022] Preferably, as an improvement, the tension adjustment mechanism includes a base;

[0023] A slider is slidably mounted on the base, and a locking groove is provided on the slider. A tension wheel is rotatably connected to the slider, and the tension wheel abuts against the inner side of the track.

[0024] The base is also provided with a through hole, through which an adjusting screw is inserted and rotatably connected. The adjusting screw is parallel to the sliding direction of the slider. A wedge is threadedly connected to the end of the adjusting screw near the slider. The wedge has a wedge surface and is slidably mounted on the base.

[0025] A swing arm is also rotatably mounted on the base. A torsion spring connects the swing arm to the base. The swing arm is located between the wedge and the slider. One end of the swing arm is provided with a pusher that abuts against the wedge surface of the wedge. The other end of the swing arm is provided with a locking protrusion that can be engaged in a locking groove to lock the slider.

[0026] The above-described tension adjustment mechanism is used to adjust the tension and slack of the track. During use, the locking lug engages in the locking groove and positions the tension wheel, causing it to press against the inner side of the track, ensuring normal track movement. When track disassembly and maintenance are required, rotating the adjusting screw causes the wedge to slide under the push of the thread. The swing arm also swings under the action of the torsion spring, and the pushing member slides on the wedge surface of the wedge, causing the swing arm to swing and disengage the locking lug from the locking groove, thus releasing the positioning of the tension wheel. The tensioning effect of the tension wheel on the track is released, and the track is now in a slack state, allowing for easy removal and unfolding for maintenance. The operation is simple and convenient, improving track maintenance efficiency.

[0027] Preferably, as an improvement, the pushing component is a roller, which is rotatably connected to the swing arm.

[0028] The above scheme uses a roller to abut against the wedge. When the roller slides relative to the wedge on the wedge surface, it can roll on the wedge surface, which facilitates the movement of the pushing part. When the swing arm swings, the pushing part swings in an arc with the swing arm. The use of roller and wedge to cooperate can ensure good contact between the pushing part and the wedge.

[0029] Preferably, as an improvement, the wedge surface of the wedge block is provided with a groove, and the outer edge of the roller is provided with a convex ring, which can be embedded in the groove.

[0030] Through the above scheme, the cooperation between the slide groove and the convex ring has a limiting effect on the pushing part, ensuring a good fit between the slide groove and the pushing part.

[0031] Preferably, as an improvement, the locking protrusion is semi-circular, and the locking groove is matched with the locking protrusion.

[0032] The above solution, with its semi-circular design, makes it easier for the locking protrusion to engage with the locking groove.

[0033] Preferably, as an improvement, a spring is connected between the slider and the base, and a spring is also connected between the wedge and the base.

[0034] With the above scheme, when the locking protrusion exits from the locking groove, the slider and wedge can automatically reset and retract under the action of their respective connected springs, thereby driving the tensioning wheel away from the track and automatically releasing the tension on the track, which facilitates the disassembly and maintenance of the track. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the robot's structure.

[0036] Figure 2 This is a side view of the bucket structure.

[0037] Figure 3This is a top view of the bucket structure, showing the internal state of the bucket during cutting.

[0038] Figure 4 for Figure 2 A magnified view of part A in the middle.

[0039] Figure 5 This is a schematic diagram of the walking mechanism.

[0040] Figure 6 This is a schematic diagram of the adjustment mechanism.

[0041] Figure 7 This is a schematic diagram showing the state when the locking protrusion is embedded in the locking groove.

[0042] Figure 8 This is a schematic diagram of the wedge block.

[0043] Figure 9 A schematic diagram of the pushing component.

[0044] The reference numerals in the accompanying drawings include: bucket body 1, auger 2, spiral blade 3, sludge discharge port 4, discharge pipe 5, filter screen 6, hydraulic motor 7, drive shaft 8, sleeve 9, breaker assembly 10, blade 11, interlayer 12, cone 13, scraper ring 14, inclined plane 15, front traveling wheel 16, rear traveling wheel 17, track 18, base 19, slider 20, spring 21, locking groove 22, tensioning wheel 23, adjusting screw 24, control motor 25, wedge block 26, wedge surface 27, swing arm 28, pushing component 29, slide groove 30, convex ring 31, locking convex 32, traveling mechanism 33, vehicle body 34, bucket 35. Detailed Implementation

[0045] The following detailed description provides further details on specific embodiments, but the embodiments of this utility model are not limited thereto. Unless otherwise specified, the technical means used in the following embodiments are conventional means well known to those skilled in the art; the experimental methods used are all conventional methods; and the materials and reagents used are all commercially available.

[0046] Example 1

[0047] Foundry workshop water tank dredging robot, such as Figure 1 As shown, the device includes a traveling mechanism 33, a vehicle body 34, and a bucket 35. The vehicle body 34 is located above the traveling mechanism 33, and the bucket 35 is located at the front of the vehicle body 34. The traveling mechanism 33 includes front wheels 16 and rear wheels 17, with tracks 18 connected between the front wheels 16 and the rear wheels 17. The bucket 35 has a bucket body 1, combined with... Figure 2 and Figure 3As shown, a spiral auger 2 is rotatably mounted inside the bucket body 1. In actual application, the spiral auger 2 is connected to a hydraulic motor 7. Spiral blades 3 are fixedly mounted on the spiral auger 2, and the spiral blades 3 on both sides of the spiral auger 2 rotate in opposite directions. A discharge port 4 is provided in the middle of the bucket body 1, and a discharge pipe 5 is connected to the discharge port 4. The discharge pipe 5 is connected to a suction pump. A filter screen 6 is provided inside the bucket body 1. There are gaps between the filter screen 6 and the discharge port 4, and between the filter screen 6 and the spiral auger 2. A drive shaft 8 is provided between the filter screen 6 and the spiral auger 2. The drive shaft 8 is also connected to the hydraulic motor 7. A sleeve 9 is sleeved on the drive shaft 8 and threadedly connected to it. The sleeve 9 is also slidably connected to the bucket body 1. Multiple sets of crushing blades 10 are fixed on the sleeve 9. Figure 4 As shown, multiple sets of cutting blades 10 are arranged sequentially along the axial direction of the casing 9. Each set of cutting blades 10 includes multiple blades 11, which are arranged in a ring array around the axial direction of the casing 9.

[0048] The bucket body 1 has a jacket 12, and the side wall of the jacket 12 facing the inside of the bucket body 1 has a through hole. Both ends of the drive shaft 8 and both ends of the sleeve 9 pass through the through hole and extend into the jacket 12. Both ends of the sleeve 9 are threadedly connected to the drive shaft 8, and both ends of the sleeve 9 are slidably connected to the inner wall of the jacket 12 of the bucket body 1. A tapered cylinder 13 is fixed on the edge of the through hole. One end of the tapered cylinder 13 connected to the through hole is the large-diameter end, and the other end is the small-diameter end. A scraper ring 14 is provided at the small-diameter end, and the sleeve 9 passes through the scraper ring 14 and the tapered cylinder 13.

[0049] A tension adjustment mechanism for adjusting the tension of the track 18 is provided on the inner side of the track 18. In this embodiment, the tension adjustment mechanism is a hydraulic cylinder, and the end of the telescopic rod of the hydraulic cylinder abuts against the inner surface of the track 18.

[0050] In practical application, when the bucket is used to dredge the reservoir, the auger 2 rotates under the action of the hydraulic motor 7, transporting the sludge from both sides of the bucket body 1 towards the center. Under the action of the suction pump, the sludge passes through the filter screen 6 and enters the discharge port 4, and is then sucked into the discharge pipe 5 for discharge. During this process, the hydraulic motor 7 controls the drive shaft 8 to rotate reciprocally. The sleeve 9, being slidably connected to the bucket body 1, slides laterally along the axial direction of the drive shaft 8 under the push of the thread on the drive shaft 8, allowing multiple sets of crushing blades 10 to pass through the sludge clumps. The multiple sets of crushing blades 10 sequentially crush the sludge clumps, enhancing the processing effect. The multiple blades 11 in the crushing blade sets 10 also crush the sludge clumps. The crushed sludge is reduced to a smaller volume under the combined action of the auger 2 and the blades 11, and finally passes through the filter screen 6 and is sucked into the discharge pipe 5 for discharge.

[0051] Example 2

[0052] In this embodiment, based on embodiment 1, the blades 11 on adjacent crushing blade groups 10 are staggered. Each blade 11 has two inclined surfaces 15 facing opposite sides of the bucket body 1. The cross-section of each blade 11 is triangular or rhomboid. Figure 4 The diagram shows the state when the blade 11 has a rhomboid cross-section. The shredder assembly 10 is located near the center of the bucket body 1.

[0053] Based on the implementation process of Example 1, the inclined surface 15 on the blade 11 makes it easier for the blade 11 to enter the sludge mass, thereby ensuring the crushing effect on the sludge mass.

[0054] Example 3

[0055] The tension adjustment mechanism of the dredging robot in this embodiment differs from that in the previous embodiments, and is combined with... Figure 5 and Figure 6 As shown, the tension adjustment mechanism includes a base 19. A slider 20 is vertically slidably mounted on the base 19, and a spring 21 connects the slider 20 to the base 19. The slider 20 is provided with a locking groove 22, and a tension wheel 23 is rotatably connected to the slider 20, the tension wheel 23 abutting against the inner side of the track 18.

[0056] The base 19 is also provided with a through hole, through which an adjusting screw 24 is inserted and rotatably connected, and the adjusting screw 24 is connected to a control motor 25.

[0057] The adjusting screw 24 is parallel to the sliding direction of the slider 20. A wedge 26 is threadedly connected to one end of the adjusting screw 24 near the slider 20. The wedge 26 has an upward-facing wedge surface 27. The wedge 26 is slidably mounted on the base 19. A spring 21 is also connected between the wedge 26 and the base 19.

[0058] A swing arm 28 is positioned and rotatably mounted on the base 19 via a pin. A torsion spring connects the swing arm 28 to the base 19. The swing arm 28 is located between the wedge block 26 and the slider 20, and one end of the swing arm 28 is provided with a pusher 29, which abuts against the wedge surface 27 of the wedge block 26. Figure 7 As shown, the other end of the swing arm 28 is provided with a locking protrusion 32, which can be engaged into the locking groove 22 and lock the slider 20. In this embodiment, the pushing member 29 is a roller, which is rotatably connected to the swing arm 28, as shown. Figure 8 and Figure 9 As shown, the wedge surface 27 of the wedge block 26 is provided with a sliding groove 30, and the outer edge of the roller is provided with a protruding ring 31. The protruding ring 31 can be embedded in the sliding groove 30. The locking protrusion 32 is semi-circular, and the locking groove 22 is matched with the locking protrusion 32.

[0059] In practical application, adjusting screw 24 causes wedge 26 to abut against roller, thereby locking the locking protrusion 32 at the other end of swing arm 28 into locking groove 22 on slider 20. Locking protrusion 32 locks the position of slider 20, causing tension wheel 23 to abut against inner side of track 18, thereby tensioning track 18 and ensuring normal operation of track 18.

[0060] When the track 18 needs to be disassembled and maintained, the adjusting screw 24 is rotated by the control motor 25, causing the adjusting screw 24 to exit from the through hole. The adjusting screw 24 pushes the wedge block 26 down through the thread, and the swing arm 28 returns to its original swing under the action of the torsion spring, maintaining good contact between the roller and the wedge surface 27 of the wedge block 26, and causing the roller to roll towards the lower end of the wedge surface 27. The cooperation between the convex ring 31 and the slide groove 30 restricts the direction of movement and ensures the directional rolling of the roller.

[0061] The other end of the swing arm 28 drives the locking protrusion 32 away from the locking groove 22 until the locking protrusion 32 is withdrawn outside the locking groove 22. At this time, the slider 20 is reset under the action of the spring 21 and drives the tension wheel 23 to move away from the track 18, thus removing the tensioning force of the tension wheel 23 on the track 18. At this time, the track 18 can be removed for maintenance.

[0062] After maintenance, the track 18 is reinstalled between the front wheel 16 and the rear wheel 17. The slider 20 is pushed up to move, so that the tensioning wheel 23 abuts against the inner side of the track 18 and tensions the track 18. Then, the adjusting screw 24 is driven to rotate in the opposite direction by the control motor 25. The adjusting screw 24 pushes the wedge block 26 to slide up, so that the wedge block 26 lifts the roller. The roller drives the swing arm 28 to swing and the locking protrusion 32 is re-engaged into the locking groove 22 to lock the slider 20 and keep the tensioning wheel 23 in a tensioned state on the track 18.

[0063] The tension adjustment mechanism in this embodiment is used to adjust the track 18. Compared with the hydraulic cylinder adjustment method in the previous embodiment, it is easier to control the movement of the tension wheel 23 during operation, and can avoid the problems of over-adjustment or under-adjustment that exist in hydraulic cylinder drive.

[0064] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A sludge removal robot for a foundry workshop's water storage tank, comprising a walking mechanism, a vehicle body, and a bucket, wherein the vehicle body is located above the walking mechanism, and the bucket is positioned at the front of the vehicle body; the walking mechanism includes front and rear wheels, with tracks connecting the front and rear wheels; the bucket has a bucket body, within which a spiral auger rotates, spiral blades are fixedly mounted, and the spiral blades on both sides of the spiral auger rotate in opposite directions; a sludge discharge port is located in the middle of the bucket body, the discharge port is connected to a discharge pipe, and the discharge pipe is connected to a suction pump, characterized in that: The bucket is equipped with a filter screen. There are gaps between the filter screen and the discharge port, and between the filter screen and the spiral auger. A drive shaft is provided between the filter screen and the spiral auger. A sleeve is sleeved on the drive shaft and threadedly connected to it. The sleeve is also slidably connected to the bucket body. Multiple sets of crushing blades are fixed on the sleeve. The multiple sets of crushing blades are arranged sequentially along the axial direction of the sleeve. Each set of crushing blades includes multiple blades, which are arranged in a ring array around the axial direction of the sleeve. The inner side of the track is equipped with a tension adjustment mechanism for adjusting the track tension.

2. The dredging robot for the casting workshop water tank according to claim 1, characterized in that: The bucket body has a sandwich layer, and the side wall of the sandwich layer facing the inside of the bucket body has a through hole. Both ends of the drive shaft and both ends of the sleeve pass through the through hole and extend into the sandwich layer. Both ends of the sleeve are threadedly connected to the drive shaft, and both ends of the sleeve are slidably connected to the inner wall of the sandwich layer of the bucket body.

3. The dredging robot for the casting workshop water storage tank according to claim 2, characterized in that: A tapered cylinder is fixed on the edge of the through hole. One end of the tapered cylinder is connected to the through hole, which is the large diameter end, and the other end is the small diameter end. A scraper ring is provided at the small diameter end, and the sleeve passes through the scraper ring and the tapered cylinder.

4. The dredging robot for the casting workshop water storage tank according to claim 3, characterized in that: The blades on adjacent crusher blade sets are staggered.

5. The dredging robot for the casting workshop water storage tank according to claim 4, characterized in that: The blade has two bevels facing the sides of the bucket body, and the blade's cross-section is triangular or rhomboid.

6. The dredging robot for a foundry workshop water tank according to any one of claims 1-5, characterized in that: The tension adjustment mechanism includes a base; A slider is slidably mounted on the base, and a locking groove is provided on the slider. A tension wheel is rotatably connected to the slider, and the tension wheel abuts against the inner side of the track. The base is also provided with a through hole, through which an adjusting screw is inserted and rotatably connected. The adjusting screw is parallel to the sliding direction of the slider. A wedge is threadedly connected to the end of the adjusting screw near the slider. The wedge has a wedge surface and is slidably mounted on the base. A swing arm is also rotatably mounted on the base. A torsion spring connects the swing arm to the base. The swing arm is located between the wedge and the slider. One end of the swing arm is provided with a pusher that abuts against the wedge surface of the wedge. The other end of the swing arm is provided with a locking protrusion that can be engaged in a locking groove to lock the slider.

7. The dredging robot for a foundry workshop water tank according to claim 6, characterized in that: The pushing component is a roller, which is rotatably connected to the swing arm.

8. The dredging robot for a foundry workshop water tank according to claim 7, characterized in that: The wedge surface of the wedge block is provided with a sliding groove, and the outer edge of the roller is provided with a convex ring, which can be embedded in the sliding groove.

9. The dredging robot for a foundry workshop water tank according to claim 8, characterized in that: The locking protrusion is semi-circular, and the locking groove is matched with the locking protrusion.

10. The dredging robot for a foundry workshop water tank according to claim 9, characterized in that: A spring connects the slider to the base, and a spring also connects the wedge to the base.

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