Central transmission mud scraper

Abstract

The utility model discloses a center transmission mud scraper, which belongs to the technical field of sewage treatment and comprises a settling pond and a service bridge, a driving device is arranged in the center of the surface of the service bridge, a flow stabilizing barrel is arranged in the center of the bottom of the service bridge, a main rotating shaft is arranged at the bottom of the driving device, and rake frames are arranged on two sides of the bottom of the main rotating shaft. An adjusting assembly is arranged at the top of the harrow frame, a plurality of fixed mounting frames and movable mounting frames are arranged at the bottom of the harrow frame, and scraping plates are arranged at the bottoms of the fixed mounting frames and the movable mounting frames. By arranging the adjusting assembly and the movable mounting frame, when the driving device is close to a load critical value, the waterproof motor is started and drives the transmission rod to rotate, the transmission rod drives the adjusting sliding block to slide, the adjusting sliding block drives the adjusting rod to move, and the adjusting rod drives the movable mounting frame and the scraper blade to rotate along the small rotating shaft to be perpendicular to the harrow frame; therefore, the sludge resistance borne by the equipment is reduced, and the function of avoiding overload of the driving device is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially relates to a center drive mud scraper. BACKGROUND

[0002] Center drive mud scraper is a kind of equipment for cleaning sewage treatment sedimentation tank, by the transmission of reduction drive and suspension assembly, mud is scraped to center sludge collecting tank by scraper, and is discharged outside pond by static water pressure or pump;

[0003] Center drive mud scraper when using, because only rely on one motor drive suspension assembly to work, if pool bottom sludge is accumulated too much, it can increase the sludge resistance that the scraper of mud scraper carries, to cause motor load increase, further cause motor overload and cause motor damage;

[0004] Therefore, a kind of center drive mud scraper is presented to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problems that center drive mud scraper in prior art is prone to cause motor overload when cleaning sludge accumulated too much, and proposes a kind of center drive mud scraper.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A kind of center drive mud scraper, including sedimentation tank and working bridge, the center of the surface of the working bridge is provided with driving device, the center of the bottom of the working bridge is provided with steady flow bucket, the bottom of the driving device is provided with main rotating shaft, the both sides of the bottom of the main rotating shaft are provided with harrow frame, the top of the harrow frame is provided with adjusting assembly, the bottom of the harrow frame is provided with multiple fixed mounting bracket and movable mounting bracket, the bottom of the fixed mounting bracket and movable mounting bracket is provided with scraper.

[0008] Preferably, the main rotating shaft is fixedly connected with upper hinge seat on the both sides of the top of harrow frame, the main rotating shaft is fixedly connected with lower hinge seat on the both sides of the bottom of harrow frame, and the hinge seat and lower hinge seat are hinged to the opposite ends of harrow frame.

[0009] Preferably, the adjusting assembly includes protective shell, slide rod and transmission rod, the protective shell is located at one end of harrow frame close to main rotating shaft, the side wall of the protective shell is fixedly connected with harrow frame, waterproof motor is arranged in the protective shell, one end of the transmission rod is connected with the output end of waterproof motor, the other end of the transmission rod is rotatably connected with one end of harrow frame away from main rotating shaft, the slide rod is fixedly installed at the top of harrow frame corresponding movable mounting bracket, and adjusting sliding block is arranged at the slide rod corresponding movable mounting bracket.

[0010] Preferably, the outer wall of the transmission rod is provided with lead screw.

[0011] Preferably, the two ends of the adjusting slider top are in sliding connection with the slide rod, the center of the adjusting slider top is in threaded connection with the lead screw, and the bottom of the adjusting slider is provided with a sliding groove.

[0012] Preferably, the center of the movable mounting frame is fixedly connected with a small rotating shaft, one end of the movable mounting frame close to the transmission rod is fixedly connected with a rotating seat, the rotating seat is rotatably connected with an adjusting rod, the top of the adjusting rod is fixedly connected with a limiting block, and the adjusting rod is in sliding connection with the sliding groove through the limiting block.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The utility model discloses a kind of adjusting components and movable mounting frames are set, when driving device approaches load critical value, waterproof motor is opened and drives transmission rod rotation, adjusting slider is driven to slide by transmission rod, adjusting rod is moved by adjusting slider, movable mounting frame and its bottom scraper are rotated to perpendicular to harrow frame state and lose scraping effect by adjusting rod, so that the sludge resistance borne by the equipment is reduced, the function of avoiding driving device overload is realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a kind of center transmission mud scraper's three-dimensional structure schematic diagram that the utility model proposes;

[0016] Figure 2 It is a kind of center transmission mud scraper's internal structure schematic diagram that the utility model proposes;

[0017] Figure 3 It is a kind of center transmission mud scraper's three-dimensional structure schematic diagram that the utility model proposes;

[0018] Figure 4 It is a kind of center transmission mud scraper's three-dimensional structure schematic diagram that the utility model proposes;

[0019] Figure 5 It is a kind of center transmission mud scraper's three-dimensional structure schematic diagram that the utility model proposes;

[0020] Figure 6 It is a kind of center transmission mud scraper's three-dimensional structure schematic diagram that the utility model proposes;

[0021] In the figure: 1, sedimentation tank; 2, working bridge; 3, driving device; 4, steady flow barrel; 5, main rotating shaft; 6, harrow frame; 7, fixed mounting frame; 8, movable mounting frame; 9, scraper; 10, upper hinged seat; 11, lower hinged seat; 12, protective shell; 13, sliding rod; 14, transmission rod; 15, waterproof motor; 16, adjusting sliding block; 17, lead screw; 18, sliding groove; 19, small rotating shaft; 20, rotating seat; 21, adjusting rod; 22, limiting block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Reference Figures 1-6 A center transmission mud scraper, including sedimentation tank 1 and working bridge 2, the center of the surface of working bridge 2 is provided with driving device 3, the center of the bottom of working bridge 2 is provided with steady flow barrel 4, the bottom of driving device 3 is provided with main rotating shaft 5, the both sides of the bottom of main rotating shaft 5 are provided with harrow frame 6, the top of harrow frame 6 is provided with adjusting assembly, the bottom of harrow frame 6 is provided with multiple fixed mounting frames 7 and movable mounting frames 8, the bottom of fixed mounting frame 7 and movable mounting frame 8 is provided with scraper 9;

[0024] It should be noted that: fixed mounting frame 7 and movable mounting frame 8 are arranged at an angle of 45 ° relative to harrow frame 6 to achieve the effect of scraping mud.

[0025] Further, the both sides of the top of harrow frame 6 are fixedly connected with main rotating shaft 5, the both sides of the bottom of harrow frame 6 are fixedly connected with lower hinged seat 11, upper hinged seat 10 and lower hinged seat 11 are hinged to the opposite ends of harrow frame 6.

[0026] It should be noted that: the fixed connection of harrow frame 6 with main rotating shaft 5 through the bottom enables harrow frame 6 to be driven by main rotating shaft 5 to rotate, because harrow frame 6 is a frame structure, resulting in that, when harrow frame 6 rotates, the end thereof away from main rotating shaft 5 will shake due to inertia, thereby driving the frame at the top end of harrow frame 6 to shake, the horizontal shaking can be resisted by the structural strength of main rotating shaft 5, but the vertical shaking will affect the rotation stability of main rotating shaft 5 when acting on main rotating shaft 5.

[0027] The advantage of the above structure is that the hinged connection enables harrow frame 6 to rotate relative to main rotating shaft 5 to a certain extent in the vertical direction, thereby reducing the stress concentration caused by structural deformation and ensuring the rotation stability of main rotating shaft 5.

[0028] Further, the adjusting assembly comprises a protective shell 12, a sliding rod 13 and a transmission rod 14, the protective shell 12 is located at one end of the rake frame 6 close to the main rotating shaft 5, the side wall of the protective shell 12 is fixedly connected with the rake frame 6, a waterproof motor 15 is arranged in the protective shell 12, the waterproof motor 15 is prevented from being eroded by sewage through the protective shell 12, one end of the transmission rod 14 is connected with the output end of the waterproof motor 15, the other end of the transmission rod 14 is rotatably connected with the end of the rake frame 6 away from the main rotating shaft 5, the sliding rod 13 is fixedly installed at the top of the rake frame 6 corresponding to the movable mounting frame 8, the sliding rod 13 is provided with an adjusting sliding block 16 at the position corresponding to the movable mounting frame 8, and the outer wall of the transmission rod 14 is provided with a lead screw 17.

[0029] Further, the two ends of the top of the adjusting sliding block 16 are slidably connected with the sliding rod 13, the center of the top of the adjusting sliding block 16 is threadedly connected with the lead screw 17, and the bottom of the adjusting sliding block 16 is provided with a sliding groove 18 for compensating the displacement distance of the movable mounting frame 8 after adjustment.

[0030] Further, the center of the movable mounting frame 8 is fixedly connected with a small rotating shaft 19, one end of the movable mounting frame 8 close to the transmission rod 14 is fixedly connected with a rotating seat 20, the rotating seat 20 is rotatably connected with an adjusting rod 21, the top of the adjusting rod 21 is fixedly connected with a limiting block 22, and the adjusting rod 21 is slidably connected with the sliding groove 18 through the limiting block 22.

[0031] The above further advantages are that when the industrial computer in the prior art monitors that the driving device 3 approaches a load critical value, the waterproof motor 15 is started through a program, the driving transmission rod 14 is driven to rotate after the waterproof motor 15 is started, the adjusting sliding block 16 is driven to slide through the lead screw 17 on the outer wall of the transmission rod 14, the adjusting rod 21 is driven to move through the adjusting sliding block 16, and the movable mounting frame 8 and the scraper 9 at the bottom thereof are driven to rotate along the small rotating shaft 19 and change the angle, so that the scraper 9 installed at the movable mounting frame 8 is perpendicular to the rake frame 6 and loses the scraping effect, thereby reducing the sludge resistance borne by the equipment, and the function of avoiding overloading of the driving device 3 is realized.

[0032] When the utility model is in use, the industrial computer in the prior art starts the driving device 3 and monitors the load of the driving device 3, the main rotating shaft 5 and the rake frame 6 are driven to rotate through the driving device 3, the sludge is scraped to the center of the sedimentation tank 1 through the scraper 9, in this process, the rake frame 6 can rotate or deform to a certain extent relative to the main rotating shaft 5 through the hinged connection, so as to reduce the stress concentration caused by structural deformation, and then the reliability of the main rotating shaft 5 and the rake frame 6 in use is improved, finally the sludge is discharged outside the pool through the hydrostatic pressure;

[0033] When the sludge in the pool bottom accumulates too much, the load of the driving device 3 increases to close to the load critical value, the industrial computer opens the waterproof motor 15 through the program to drive the transmission rod 14 to rotate, the transmission rod 14 rotates through the lead screw 17 on the outer wall to drive the adjusting slider 16 to slide away from the main rotating shaft 5, the adjusting slider 16 drives the adjusting rod 21 to move, the adjusting rod 21 drives the movable mounting frame 8 and the scraper 9 at the bottom thereof to rotate along the small rotating shaft 19, the adjusting rod 21 slides into the sliding groove 18 away from one end of the harrow frame 6 through the limiting block 22 during the movement process to compensate for the displacement distance of the movable mounting frame 8 after adjustment, at the same time, the movable mounting frame 8 and the scraper 9 at the bottom thereof are driven to rotate along the small rotating shaft 19 and change the angle, so that the scraper 9 installed at the movable mounting frame 8 is perpendicular to the harrow frame 6, at this time, the scraper 9 installed at the movable mounting frame 8 loses the scraping effect because the contact area with the sludge reaches the minimum, thereby reducing the sludge resistance borne by the equipment, and further reducing the load of the driving device 3, avoiding the overload of the driving device 3;

[0034] The state is kept running and the sludge is scraped off by the scraper 9 at the bottom of the fixed mounting frame 7 to reduce the accumulation of the sludge, after running for a suitable time, the waterproof motor 15 reverses to reset the movable mounting frame 8 and the scraper 9 at the bottom thereof, and the remaining sludge is scraped off by the scraper 9.

[0035] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A central transmission mud scraper comprising a sedimentation basin (1) and a working bridge (2), characterized in that, The surface of the working bridge (2) is provided with a driving device (3) in the center, the bottom of the working bridge (2) is provided with a steady flow bucket (4) in the center, the bottom of the driving device (3) is provided with a main rotating shaft (5), both sides of the bottom of the main rotating shaft (5) are provided with a harrow frame (6), the top of the harrow frame (6) is provided with an adjusting assembly, the bottom of the harrow frame (6) is provided with a plurality of fixed mounting frames (7) and movable mounting frames (8), and the bottom of the fixed mounting frame (7) and the movable mounting frame (8) is provided with a scraper (9).

2. A centre drive mud scraper as claimed in claim 1 wherein: The main rotating shaft (5) is fixedly connected with an upper hinge seat (10) on both sides of the top of the harrow frame (6), and the main rotating shaft (5) is fixedly connected with a lower hinge seat (11) on both sides of the bottom of the harrow frame (6). The upper hinge seat (10) and the lower hinge seat (11) are hinged to the opposite ends of the harrow frame (6).

3. A centre drive mud scraper as claimed in claim 1 wherein: The adjusting assembly comprises a protective shell (12), a sliding rod (13) and a transmission rod (14), the protective shell (12) is located at one end of the harrow frame (6) close to the main rotating shaft (5), the side wall of the protective shell (12) is fixedly connected with the harrow frame (6), a waterproof motor (15) is arranged in the protective shell (12), one end of the transmission rod (14) is connected with the output end of the waterproof motor (15), the other end of the transmission rod (14) is rotatably connected with the other end of the harrow frame (6) away from the main rotating shaft (5), the sliding rod (13) is fixedly installed on the top of the harrow frame (6), and an adjusting sliding block (16) is arranged on the top of the movable mounting frame (8) on the outer surface of the sliding rod (13).

4. A centre drive mud scraper according to claim 3, characterised in that: The outer wall of the transmission rod (14) is provided with a lead screw (17).

5. A centre drive mud scraper according to claim 4, characterised in that: Both ends of the top of the adjusting sliding block (16) are slidably connected with the sliding rod (13), the center of the top of the adjusting sliding block (16) is threadedly connected with the lead screw (17), and a sliding groove (18) is formed in the bottom of the adjusting sliding block (16).

6. A centre drive mud scraper according to claim 5, characterised in that: The center of the movable mounting frame (8) is fixedly connected with a small rotating shaft (19), the top of the movable mounting frame (8) is fixedly connected with a rotating seat (20), the rotating seat (20) is rotatably connected with an adjusting rod (21), the top of the adjusting rod (21) is fixedly connected with a limiting block (22), and the adjusting rod (21) is slidably connected with the sliding groove (18) through the limiting block (22).

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