Mud scraper with deviation correcting device

Abstract

The utility model relates to a mud scraper with a deviation rectifying device, and belongs to the technical field of sewage treatment. The rotary driving shaft is driven by a gear motor to rotate, the bottom end of the rotary driving shaft is provided with two sets of symmetrically-distributed supporting cross beams through lower hoops, the leveling beam is detachably provided with a mud scraping plate device, the middle of the leveling beam is provided with a middle hinge seat, and the middle hinge seat is rotationally connected with the supporting cross beams through hinge rotating shafts. The length of the left diagonal draw bar and the length of the right diagonal draw bar are adjustable, the left diagonal draw bar and the right diagonal draw bar are hinged to the two ends of the leveling beam respectively, and the other end of the left diagonal draw bar and the other end of the right diagonal draw bar are hinged to the two ends of the supporting cross beam respectively. The mud scraper device has the following beneficial effects that the deviation rectifying function of the mud scraper device is realized, and the mud scraper can be always attached to the inner bottom wall of the sedimentation tank during mud scraping, so that the mud scraping effect of the mud scraper device cannot be influenced by the inclination and deflection of the mud scraper device.

Description

Technical Field

[0001] This utility model relates to a sludge scraper with a deviation correction device, belonging to the field of wastewater treatment technology. Background Technology

[0002] Center-driven sludge scrapers are widely used in wastewater treatment projects in urban, chemical, textile, and metallurgical industries. They have a reasonable structure, high efficiency, and are easy to operate and maintain, making them an ideal supporting facility for wastewater treatment projects.

[0003] A search revealed a utility model patent with patent number 202120366717.3, which discloses a center-driven sludge scraper, comprising a body, a control cabinet, a working bridge, and a main shaft. The working bridge is located on the upper part of the body, and the control cabinet is located on the upper part of the working bridge. The main shaft is vertically arranged and located at the center of the body. A reducer for controlling the rotational speed of the main shaft is arranged at the top of the main shaft, and the reducer is located at the center of the working bridge. A guide cylinder is arranged between the reducer and the upper part of the main shaft. A slag scraper is arranged on one side of the guide cylinder, and a slag collection hopper is arranged at the end of the slag scraper away from the guide cylinder. Two scraper arms are symmetrically arranged at the bottom of the main shaft, and a scraper is arranged below each of the two scraper arms.

[0004] Although the above-mentioned patent can achieve the venting function, the current technology is not comprehensive and has the following drawbacks: when the scraper device tilts or deflects, the gap between one end of the scraper and the bottom of the pool is too large, which will reduce the scraping efficiency; the gap between the other end of the scraper and the bottom of the pool is too large, which will aggravate the wear of the scraper.

[0005] To solve one of the above problems, there is an urgent need for a sludge scraper with a deviation correction device. Utility Model Content

[0006] Based on the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to realize the correction function of the scraper device so that the scraper can always be in contact with the bottom wall of the sedimentation tank during scraping, so that the scraper device will not be affected by the tilting or deflection of the scraper device. Therefore, a scraper with a correction device is provided.

[0007] The sludge scraper with a correction device described in this utility model includes a vertical rotary drive shaft driven by a reduction motor. Two sets of symmetrically distributed support beams are mounted on the bottom end of the rotary drive shaft via a lower clamp. The feature is that each set of support beams is equipped with a leveling beam, on which a detachable sludge scraper device is mounted. A central hinge seat is installed in the middle of the leveling beam, and the central hinge seat is rotatably connected to the support beams via a hinged rotary shaft. The sludge scraper also includes adjustable-length left and right diagonal braces, which are respectively hinged to both ends of the leveling beams. The other ends of the left and right diagonal braces are respectively hinged to both ends of the support beams.

[0008] When one side of the diagonal tie rod shortens, the height of the leveling beam at that end will be raised; conversely, when it extends, the height will be lowered. The central hinge seat and the supporting crossbeam form a rotating pair through the hinged rotating shaft, allowing the leveling beam to adjust its pitch angle around the axis. This allows for adjustment of the tilt angle of the scraper device, enabling the scraper device to correct its deviation. During scraping, the scraper can always be in contact with the bottom wall of the sedimentation tank, thus ensuring that the scraper device's scraping effect is not affected by tilting or deflection.

[0009] Preferably, the left diagonal tie rod includes an upper screw rod hinged to the supporting crossbeam and a lower screw rod hinged to the leveling beam. The outer surfaces of the connectors of the upper screw rod and the lower screw rod are respectively formed with right-hand external threads and left-hand external threads. Correspondingly, the inner circumferential wall of the connecting sleeve is formed with an internal thread that matches the left-hand and right-hand external threads.

[0010] Preferably, by rotating the connecting sleeve, the lengths of the upper and lower screws extending into the connecting sleeve can be changed, thereby altering the overall length of the left diagonal tie rod. When the left diagonal tie rod shortens, the height of the leveling beam at that end will be raised.

[0011] Preferably, the right diagonal tie rod has the same structure as the left diagonal tie rod.

[0012] Preferably, the scraper device includes a fixed plate and a top plate A. A scraper is detachably mounted on the bottom end of the fixed plate. A front side plate A and a rear side plate A are vertically connected to both sides of the top plate A, respectively. Multiple horizontal sliding rods are threaded through the fixed plate. The two ends of each horizontal sliding rod pass through the front side plate A and the rear side plate A, respectively, and are connected to a front nut and a rear nut. A rear compression spring is installed on the horizontal sliding rod between the rear side plate A and the fixed plate. A front compression spring is sleeved on the horizontal sliding rod between the fixed plate and the front side plate A. The top plate A... The upper surface is provided with multiple sets of vertical sliding rods. The upper end of each vertical sliding rod passes through the top plate B and is connected to the end locking nut. The two sides of the top plate B are respectively vertically connected to the rear side plate B and the front side plate B. A top compression spring is sleeved on the vertical sliding rod between the top plate B and the top plate A. The inner sides of the rear side plate B and the front side plate B slide in cooperation with the outer sides of the rear side plate A and the front side plate A, respectively. A connecting bolt B that passes through the leveling beam is provided on the rear side plate B. A connecting nut B is threaded onto the connecting bolt B to connect the leveling beam to the rear side plate B.

[0013] The top compression spring provides the downward thrust of the top plate A. Under the compression of the spring, the scraper can always be in contact with the bottom wall of the sedimentation tank. The rear compression spring and the front compression spring push the fixing plate to the middle position of the horizontal slide bar to avoid tilting. When scraping sludge, it can ensure that the scraper is always in contact with the sedimentation plate, resulting in a good sludge scraping effect.

[0014] Preferably, the material of the scraper blade is polytetrafluoroethylene.

[0015] Preferably, the scraper blade is detachably mounted on the fixed plate by connecting bolts A, and multiple connecting bolts A are spaced apart along the length of the fixed plate.

[0016] Preferably, the lower clamp includes a half-clamp A and a half-clamp B connected by bolts.

[0017] Preferably, the supporting beam is connected to an inclined support, and the other end of the inclined support is connected to an upper clamp on the rotary drive shaft.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The sludge scraper with a correction device described in this utility model raises the height of the leveling beam at one end when the diagonal tie rod on one side shortens, and lowers the height when it extends. The central hinge seat and the supporting crossbeam form a rotating pair through the hinged rotating shaft, allowing the leveling beam to adjust its pitch angle around the axis. This allows for adjustment of the tilt angle of the sludge scraper device, thus realizing the correction function of the sludge scraper device. During sludge scraping, the sludge scraper can always be in contact with the bottom wall of the sedimentation tank, thereby ensuring that the sludge scraping effect is not affected by the tilting or deflection of the sludge scraper device.

[0020] The sludge scraper with a correction device described in this utility model has a top compression spring that provides downward thrust to the top plate A. Under the compression of the spring, the scraper plate can always be in contact with the bottom wall of the sedimentation tank. The rear compression spring and the front compression spring push the fixing plate to the middle position of the horizontal slide bar to avoid tilting. When scraping sludge, it can ensure that the scraper plate is always in contact with the sedimentation plate, resulting in a good sludge scraping effect.

[0021] The sludge scraper with a correction device described in this utility model has a sludge scraper made of polytetrafluoroethylene, which is wear-resistant and has a long service life. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a diagram showing the installation position of the leveling beam of this utility model;

[0025] Figure 3 This is an end view of the scraper device.

[0026] In the diagram: 1. Rotary drive shaft; 2. Lower clamp; 3. Support beam; 4. Scraper device; 5. Middle hinge seat; 6. Hinge rotating shaft; 7. Left diagonal tie rod; 7.1. Upper screw; 7.2. Lower screw; 7.3. Connecting sleeve; 8. Right diagonal tie rod; 9. Scraper; 10. Connecting bolt A; 11. Fixing plate; 12. Front side plate A; 13. Rear side plate A; 14. Horizontal slide rod; 15. Rear nut; 16. Rear compression spring; 17. Front nut; 18. Front compression spring; 19. Top plate A; 20. Rear side plate B; 21. Front side plate B; 22. Top plate; 23. Top plate B; 24. Top compression spring; 25. End locking nut; 26. Connecting bolt B; 27. Connecting nut B; 28. Leveling beam; 29. ​​Diagonal support; 30. Vertical slide rod. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings: The present invention will be further described below through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0028] Example 1, as Figure 1-2 As shown, the sludge scraper with a correction device includes a vertical rotary drive shaft 1, which is driven to rotate by a reduction motor. Two sets of symmetrically distributed support beams 3 are mounted on the bottom end of the rotary drive shaft 1 via a lower clamp 2. The feature is that each set of support beams 3 is equipped with a leveling beam 28, on which a scraper plate device 4 is detachably mounted. A central hinge seat 5 is installed in the middle of the leveling beam 28, and the central hinge seat 5 is rotatably connected to the support beam 3 via a hinged rotary shaft 6. The sludge scraper also includes a left-side diagonal brace 7 and a right-side diagonal brace 8 with adjustable lengths. The left-side diagonal brace 7 and the right-side diagonal brace 8 are respectively hinged to both ends of the leveling beam 28, and the other ends of the left-side diagonal brace 7 and the right-side diagonal brace 8 are respectively hinged to both ends of the support beam 3.

[0029] When the scraper device 4 tilts or deflects, the gap between one end of the scraper and the bottom of the pool is too large, which will reduce the scraping efficiency. The gap between the other end of the scraper and the bottom of the pool is too large, which will aggravate the wear of the scraper.

[0030] When one side of the diagonal tie rod is shortened, the height of the leveling beam at that end will be raised; conversely, when it is extended, the height will be lowered. The middle hinge seat 5 and the support beam 3 form a rotating pair through the hinged rotating shaft 6, which allows the leveling beam 28 to adjust its pitch angle around the axis. This allows the tilt angle of the scraper device 4 to be adjusted, thus realizing the correction function of the scraper device 4. When scraping sludge, the scraper can always be in contact with the bottom wall of the sedimentation tank, so that the scraper device 4 will not be affected by tilting or deflection.

[0031] Example 2, as Figure 1-2 As shown, the sludge scraper with a correction device includes a vertical rotary drive shaft 1, which is driven to rotate by a reduction motor. Two sets of symmetrically distributed support beams 3 are mounted on the bottom end of the rotary drive shaft 1 via a lower clamp 2. The feature is that each set of support beams 3 is equipped with a leveling beam 28, on which a scraper plate device 4 is detachably mounted. A central hinge seat 5 is installed in the middle of the leveling beam 28, and the central hinge seat 5 is rotatably connected to the support beam 3 via a hinged rotary shaft 6. The sludge scraper also includes a left-side diagonal brace 7 and a right-side diagonal brace 8 with adjustable lengths. The left-side diagonal brace 7 and the right-side diagonal brace 8 are respectively hinged to both ends of the leveling beam 28, and the other ends of the left-side diagonal brace 7 and the right-side diagonal brace 8 are respectively hinged to both ends of the support beam 3.

[0032] Furthermore, the left diagonal tie rod 7 includes an upper screw rod 7.1 hinged to the supporting crossbeam 3 and a lower screw rod 7.2 hinged to the leveling beam 28. The outer surfaces of the connectors of the upper screw rod 7.1 and the lower screw rod 7.2 are respectively formed with right-hand external threads and left-hand external threads. Correspondingly, the inner circumferential wall of the connecting sleeve 7.3 is formed with internal threads that match the left-hand and right-hand external threads.

[0033] By rotating the connecting sleeve 7.3, the lengths of the upper screw 7.1 and lower screw 7.2 extending into the connecting sleeve 7.3 can be changed, thereby altering the overall length of the left diagonal tie rod 7. When the left diagonal tie rod 7 is shortened, the height of the leveling beam at that end will be raised.

[0034] Furthermore, the right diagonal tie rod 8 has the same structure and adjustment method as the left diagonal tie rod 7.

[0035] Furthermore, referring to Figure 3 The scraper device 4 includes a fixed plate 11 and a top plate A19. A scraper 9 is detachably mounted on the bottom end of the fixed plate 11. A front side plate A12 and a rear side plate A13 are vertically connected to both sides of the top plate A19, respectively. Multiple horizontal sliding rods 14 are threaded through the fixed plate 11. The two ends of each horizontal sliding rod 14 pass through the front side plate A12 and the rear side plate A13, respectively, and are connected to a front nut 17 and a rear nut 15. A rear compression spring 16 is installed on the horizontal sliding rod 14 between the rear side plate A13 and the fixed plate 11. A front compression spring 18 is sleeved on the horizontal sliding rod 14 between the fixed plate 11 and the front side plate A12. The top plate A19... The surface is provided with multiple sets of vertical sliding rods 30. The upper end of each vertical sliding rod 30 passes through the top plate B23 and is connected to the end locking nut 25. The two sides of the top plate B23 are respectively vertically connected to the rear side plate B20 and the front side plate B21. A top compression spring 24 is sleeved on the vertical sliding rod 30 between the top plate B23 and the top plate A19. The inner sides of the rear side plate B20 and the front side plate B21 slide with the outer sides of the rear side plate A13 and the front side plate A12, respectively. A connecting bolt B26 that passes through the leveling beam 28 is provided on the rear side plate B20. A connecting nut B27 is threaded onto the connecting bolt B26 to connect the leveling beam 28 to the rear side plate B20.

[0036] The top compression spring 24 provides the downward thrust of the top plate A19. Under the compression of the spring, the scraper can always be in contact with the bottom wall of the sedimentation tank. The rear compression spring 16 and the front compression spring 18 push the fixing plate 11 to the middle position of the horizontal slide bar 14 to avoid tilting. When scraping sludge, it can ensure that the scraper is always in contact with the sedimentation plate, resulting in a good scraping effect.

[0037] Furthermore, the scraper blade 9 is made of polytetrafluoroethylene, and its length is the same as that of the fixing plate 11. The length of the fixing plate 11 is the same as that of the leveling beam 28.

[0038] Furthermore, the scraper blade 9 is detachably mounted on the fixed plate 11 by connecting bolts A10, and multiple connecting bolts A10 are spaced apart along the length of the fixed plate 11.

[0039] Furthermore, the lower clamp 2 includes a half-clamp A and a half-clamp B connected by bolts.

[0040] Furthermore, an inclined support 29 is connected to the supporting beam 3, and the other end of the inclined support 29 is connected to the upper clamp on the rotary drive shaft 1.

[0041] The sludge scraper with a correction device described in this utility model raises the height of the leveling beam at one end when the diagonal tie rod on one side shortens, and lowers the height when it extends. The central hinge seat and the supporting crossbeam form a rotating pair through the hinged rotating shaft, allowing the leveling beam to adjust its pitch angle around the axis. This allows for adjustment of the tilt angle of the sludge scraper device, thus realizing the correction function of the sludge scraper device. During sludge scraping, the sludge scraper can always be in contact with the bottom wall of the sedimentation tank, thereby ensuring that the sludge scraping effect is not affected by the tilting or deflection of the sludge scraper device.

[0042] The sludge scraper with a correction device described in this utility model has a top compression spring that provides downward thrust to the top plate A. Under the compression of the spring, the scraper plate can always be in contact with the bottom wall of the sedimentation tank. The rear compression spring and the front compression spring push the fixing plate to the middle position of the horizontal slide bar to avoid tilting. When scraping sludge, it can ensure that the scraper plate is always in contact with the sedimentation plate, resulting in a good sludge scraping effect.

[0043] The sludge scraper with a correction device described in this utility model has a sludge scraper made of polytetrafluoroethylene, which is wear-resistant and has a long service life.

[0044] 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 the invention. 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0045] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A mud scraper with a deviation rectifying device, comprising a vertical rotating drive shaft, the rotating drive shaft is driven to rotate by a speed reducer motor, the bottom end of the rotating drive shaft is provided with two groups of symmetrically distributed support cross beams through a lower clamp, characterized in that: Each support cross beam is provided with a set of leveling beams, a mud scraping plate device is detachably mounted on the leveling beams, a middle part of the leveling beam is provided with a middle part hinged seat, the middle part hinged seat is rotationally connected with the support cross beam through a hinged rotating shaft, and a left side inclined pull rod and a right side inclined pull rod are provided, the left side inclined pull rod and the right side inclined pull rod are respectively hinged at two ends of the leveling beam, and the other ends of the left side inclined pull rod and the right side inclined pull rod are respectively hinged with two ends of the support cross beam.

2. The mud scraper with a deviation rectifying device according to claim 1, characterized in that, The left side inclined pull rod comprises an upper screw rod hinged with the support cross beam and a lower screw rod hinged with the leveling beam, and outer surfaces of connecting heads of the upper screw rod and the lower screw rod are respectively formed with right-handed external threads and left-handed external threads, and inner peripheral walls of connecting sleeves are correspondingly formed with internal threads matched with the right-handed external threads and the left-handed external threads.

3. The mud scraper with a deviation rectifying device according to claim 2, characterized in that, The right side inclined pull rod is the same in structure as the left side inclined pull rod.

4. A mud scraper with a deviation rectifying device according to any one of claims 1-3, characterized in that, The mud scraping plate device comprises a fixed plate and a top plate A, a mud scraping plate is detachably mounted at a bottom end of the fixed plate, two side edges of the top plate A are respectively perpendicularly connected with front and rear side plates A, a plurality of horizontal slide rods are provided on the fixed plate in a penetrating mode, two ends of the horizontal slide rods are respectively connected with front and rear side nuts through the front and rear side plates A, a rear side compression spring is arranged on the horizontal slide rod between the rear side plate A and the fixed plate, a front side compression spring is arranged on the horizontal slide rod between the fixed plate and the front side plate A, a plurality of vertical slide rods are arranged on an upper surface of the top plate A, upper ends of the vertical slide rods are connected with end locking nuts through the top plate B, rear and front side plates B are respectively perpendicularly connected with two sides of the top plate B, a top compression spring is arranged on the vertical slide rod between the top plate B and the top plate A, inner side surfaces of the rear and front side plates B are respectively matched with outer side surfaces of the rear and front side plates A in a sliding mode, a connecting bolt B penetrating the leveling beam is arranged on the rear side plate B, and a connecting nut B is threadedly connected with the connecting bolt B to connect the leveling beam with the rear side plate B.

5. The mud scraper with a deviation rectifying device according to claim 4, characterized in that, The mud scraping plate (9) is made of polytetrafluoroethylene.

6. The mud scraper with a deviation rectifying device according to claim 5, characterized in that, The mud scraping plate is detachably mounted on the fixed plate through the connecting bolt A, and a plurality of connecting bolts A are arranged in a length direction of the fixed plate in a spaced mode.

7. The mud scraper with a deviation rectifying device according to claim 6, characterized in that, The lower hoop comprises a half hoop body A and a half hoop body B connected through bolts.

8. The mud scraper with a deviation rectifying device according to claim 7, characterized in that, The support cross beam is connected with an inclined support, and the other end of the inclined support is connected with the upper hoop on the rotating drive shaft.

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