Floating type scraping arm of sludge scraper of sludge thickening tank

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a floating type scraping arm of a sludge thickener sludge scraper, which comprises a first supporting arm and a second supporting arm, and the end part of the second supporting arm is rotatably connected with a connecting seat; the angle adjusting structure comprises a pull rod, a telescopic rod, a sliding block and a driving motor, the driving motor is fixedly connected with the first supporting arm, the sliding block is slidably connected with the first supporting arm, a lead screw is fixedly arranged on an output shaft of the driving motor to drive the sliding block to slide, one end of the pull rod is rotationally connected with the second supporting arm, and the other end of the pull rod is rotationally connected with the sliding block; the telescopic rod is rotationally connected with the first supporting arm, the output shaft of the telescopic rod is rotationally connected with the second supporting arm, the mud scraping depth can be adjusted by changing the pitching angle of the second supporting arm, meanwhile, the overall arm extension length can be adjusted within a certain range, the device adapts to a sedimentation tank, and better use flexibility and adaptability are achieved; the effect that the second supporting arm floats relative to the second supporting arm is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field especially relates to a sludge concentration tank mud scraper floating type scraper arm. BACKGROUND

[0002] Mud scraper is a kind of equipment for removing sludge settled in the bottom of large-diameter circular sedimentation tank in wastewater treatment and skimming floating dregs on the surface of the tank, and scraper arm is one of its components.

[0003] Through the retrieval, prior art discloses automatic telescopic scraper arm of mud scraper, including mud scraper main frame, the bottom of mud scraper main frame is fixedly installed with fixed scraper arm, the inside of mud scraper main frame is fixedly installed with main shaft, the outer surface of main shaft is fixedly installed with guide mud groove scraper at one end below mud scraper main frame, the inside of fixed scraper arm is movably installed with movable seat.

[0004] Prior art adjusts angle by steel cable pulling movable scraper arm, and then controls the diameter of mud scraping, and the scraper arm is pulled to stretch by steel cable, although the adjusting range is larger, but the pitch angle of swingable scraper arm is fixed, when unfolding, it can be interfered by funnel-shaped structure of tank bottom, so that scraper arm cannot be unfolded, and cannot well adapt to irregular shape of tank bottom, and there is optimization space.

[0005] Therefore, we propose a kind of sludge concentration tank mud scraper floating type scraper arm. UTILITY MODEL CONTENTS

[0006] The utility model mainly solves the technical problem that the above-mentioned scraper arm cannot adapt to the bottom of the tank, and provides a sludge concentration tank mud scraper floating type scraper arm.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme, a sludge concentration tank mud scraper floating type scraper arm, comprising:

[0008] The first support arm is arranged above the second support arm, and the end of the second support arm is rotatably connected with the connecting seat;

[0009] The angle adjusting structure is arranged between the first support arm and the second support arm for adjusting the pitch angle of the second support arm, and the angle adjusting structure comprises a pull rod, a telescopic rod, a sliding block and a driving motor, the driving motor is fixedly connected with the first support arm, the sliding block is slidably connected with the first support arm, the driving motor output shaft is fixedly provided with a screw rod driving sliding block for sliding, one end of the pull rod is rotatably connected with the second support arm, the other end of the pull rod is rotatably connected with the sliding block, and the telescopic rod is rotatably connected with the first support arm, and the output shaft of the telescopic rod is rotatably connected with the second support arm;

[0010] A scraper assembly is arranged at the bottom of the second supporting arm for scraping mud.

[0011] As a preferred mode of the utility model, the bottom of the first supporting arm is provided with a sliding groove matched with a sliding block, the sliding block is slidingly arranged in the sliding groove, and the pull rod is rotatably arranged at one side of the sliding block.

[0012] As a preferred mode of the utility model, the sliding block is fixedly installed with a silk sleeve, the lead screw is threadedly connected with the silk sleeve, and the lead screw is rotatably connected with the first supporting arm.

[0013] As a preferred mode of the utility model, the pull rod and the telescopic rod are respectively installed at positions close to both ends of the bottom of the first supporting arm, and the driving motor is fixedly installed at the end of the first supporting arm.

[0014] As a preferred mode of the utility model, the scraper assembly comprises a main scraper, a floating plate and a boom, the boom is fixedly connected with the main scraper, the boom is fixedly installed with the second supporting arm, and the floating plate is slidingly connected with the main scraper.

[0015] As a preferred mode of the utility model, the bottom of the main scraper is hollow and forms a sliding cavity matched with the floating plate, and the floating plate is slidingly arranged in the cavity of the main scraper.

[0016] As a preferred mode of the utility model, a plurality of scraper assemblies are equidistantly arranged at the bottom of the second supporting arm, and gaps are left between adjacent two floating plates and the gaps do not interfere with each other.

[0017] Beneficial effects

[0018] The utility model provides a kind of floating type scraper arm of sludge thickening tank mud scraper, with the following beneficial effects:

[0019] 1. The floating type scraper arm of sludge thickening tank mud scraper, by setting adjustable angle second supporting arm, by driving motor drives lead screw rotation, lead screw actuates sliding block in the sliding groove of the bottom of first supporting arm sliding, since the inclination of first supporting arm is arranged, by sliding block along first supporting arm sliding can pull the end of second supporting arm up, simultaneously, the output shaft of telescopic rod contracts, by pull rod and telescopic rod guarantee the overall strength between second supporting arm and first supporting arm, avoid the deformation amplitude of second supporting arm too large to influence mud scraping effect, by the pitch angle change of second supporting arm, can adjust mud scraping depth, also can adjust the overall arm length in a certain range and adapt to sedimentation tank, with better use flexibility and adaptability, reach the effect that second supporting arm is relative to second supporting arm floating.

[0020] 2. The floating type scraper arm of the sludge concentration tank scraper, by setting the slidable floating plate, by sliding the plurality of floating plates in the main scraper plate, the plurality of floating plates can form a comb structure, which can reduce the resistance of the floating plate when the main shaft rotates to scrape mud, and can also make the sludge be extruded by the plurality of floating plates to promote the flow of the sludge, improve the sludge discharge effect, and secondly, the up and down floating floating plate can adapt to the uneven bottom of the sedimentation tank, guarantee the scraping effect, cooperate with the pitch angle adjustment of the second supporting arm, realize the scraping radius adjustment and the adaptation to the bottom of the tank. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is one of the overall perspective views of the utility model;

[0022] Figure 2 It is the second overall perspective view of the utility model;

[0023] Figure 3 It is an installation schematic view of the angle adjusting structure of the utility model;

[0024] Figure 4 It is a perspective view of the scraper assembly of the utility model;

[0025] Figure 5 It is a partial cutaway view of the main scraper plate of the utility model.

[0026] Legend: 10, first supporting arm; 11, second supporting arm; 12, connecting seat; 13, pull rod; 14, telescopic rod; 15, sliding block; 16, driving motor; 20, main scraper plate; 21, floating plate; 22, boom. DETAILED DESCRIPTION

[0027] A floating type scraper arm of a sludge concentration tank scraper, as shown in Figure 1 and Figure 2 , comprising:

[0028] The first supporting arm 10 and the second supporting arm 11, the first supporting arm 10 is arranged above the second supporting arm 11, and the end of the second supporting arm 11 is rotatably connected with the connecting seat 12; it should be noted that the mechanism designed in the present scheme needs to be used in cooperation with the sludge scraper; the sludge scraper at least includes a support, a motor fixedly installed on the support, and a main shaft fixedly installed on the output shaft of the motor; the first supporting arm 10 and the connecting seat 12 are both fixedly installed on the main shaft, and a plurality of groups of the first supporting arm 10 and the second supporting arm 11 can be arranged on the main shaft, which will not be described here.

[0029] As shown in Figure 1 , Figure 2 and Figure 3As shown, the angle adjusting structure is arranged between the first support arm 10 and the second support arm 11 for adjusting the pitch angle of the second support arm 11, and the angle adjusting structure comprises a pull rod 13, a telescopic rod 14, a sliding block 15 and a driving motor 16, the driving motor 16 is fixedly connected with the first support arm 10, the sliding block 15 is slidingly connected with the first support arm 10, the output shaft of the driving motor 16 is fixedly provided with a screw rod for driving the sliding block 15 to slide, one end of the pull rod 13 is rotatably connected with the second support arm 11, the other end of the pull rod 13 is rotatably connected with the sliding block 15, and the telescopic rod 14 is rotatably connected with the first support arm 10 and the output shaft of the telescopic rod 14 is rotatably connected with the second support arm 11; a sliding groove adapted to the sliding block 15 is formed in the bottom of the first support arm 10, the sliding block 15 is slidingly arranged in the sliding groove, the pull rod 13 is rotatably arranged on one side of the sliding block 15, the sliding block 15 is fixedly provided with a silk sleeve, the screw rod is threadedly connected with the silk sleeve, and the screw rod is rotatably connected with the first support arm 10; the pull rod 13 and the telescopic rod 14 are respectively arranged at positions close to the two ends of the bottom of the first support arm 10, and the driving motor 16 is fixedly arranged at the end of the first support arm 10;

[0030] In the scheme, by arranging the second support arm 11 with adjustable angle, the screw rod is driven to rotate by the driving motor 16, and the sliding block 15 is driven to slide in the sliding groove in the bottom of the first support arm 10; due to the inclination of the first support arm 10, the end of the second support arm 11 is pulled up by sliding the sliding block 15 along the first support arm 10, at the same time, the output shaft of the telescopic rod 14 is retracted, the overall strength between the second support arm 11 and the first support arm 10 is ensured by the pull rod 13 and the telescopic rod 14, the deformation amplitude of the second support arm 11 is prevented from being too large to affect the mud scraping effect, the mud scraping depth can be adjusted by changing the pitch angle of the second support arm 11, the overall arm length can be adjusted within a certain range and adapted to the sedimentation tank, and better use flexibility and adaptability are achieved, and the effect that the second support arm 11 is relatively floating is achieved.

[0031] As shown in Figure 3 , Figure 4 and Figure 5 , the scraper assembly is arranged at the bottom of the second support arm 11 for scraping mud;

[0032] The scraper assembly comprises a main scraper 20, a floating plate 21 and a boom 22, the boom 22 is fixedly connected with the main scraper 20, the boom 22 is fixedly arranged on the second support arm 11, the floating plate 21 is slidingly connected with the main scraper 20, the bottom of the main scraper 20 is hollow and forms a sliding cavity adapted to the floating plate 21, the floating plate 21 is slidingly arranged in the cavity of the main scraper 20, a plurality of groups of scraper assemblies are equidistantly arranged at the bottom of the second support arm 11, and gaps are left between adjacent two floating plates 21 and the adjacent two floating plates 21 do not interfere with each other;

[0033] In the scheme, by setting the slidable floating plate 21, by multiple floating plate 21 in the main scraper 20 sliding, and multiple floating plate 21 can form a comb structure, both can reduce the resistance of the floating plate 21 when the main shaft rotates to scrape mud, but also can make the sludge is extruded by multiple floating plate 21 to promote sludge flow, improve the effect of mud discharge, second, the floating plate 21 can be up and down floating can adapt to the bottom uneven sedimentation tank, guarantee the effect of mud scraping.

[0034] The working principle of the utility model: through the driving motor 16 drives the screw rod to rotate, the screw rod drives the sliding block 15 to slide in the slide groove at the bottom of the first support arm 10, because the first support arm 10 is arranged obliquely, by the sliding block 15 along the first support arm 10 slides can pull the end of the second support arm 11 to go up, at the same time, the output shaft of the telescopic rod 14 contracts, the pull rod 13 and telescopic rod 14 guarantee the overall strength between the second support arm 11 and the first support arm 10, set slidable floating plate 21, by multiple floating plate 21 in the main scraper 20 sliding, and multiple floating plate 21 can form a comb structure's plate for scraping mud.

[0035] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A floating scraper arm for a sludge thickening tank scraper, characterized in that, include: A first support arm (10) and a second support arm (11), wherein the first support arm (10) is disposed above the second support arm (11), and a connecting seat (12) is rotatably connected to the end of the second support arm (11); An angle adjustment structure is provided between the first support arm (10) and the second support arm (11) for adjusting the pitch angle of the second support arm (11). The angle adjustment structure includes a pull rod (13), a telescopic rod (14), a slider (15) and a drive motor (16). The drive motor (16) is fixedly connected to the first support arm (10), and the slider (15) is slidably connected to the first support arm (10). The output shaft of the drive motor (16) is fixedly provided with a lead screw to drive the slider (15) to slide. One end of the pull rod (13) is rotatably connected to the second support arm (11), and the other end of the pull rod (13) is rotatably connected to the slider (15). The telescopic rod (14) is rotatably connected to the first support arm (10), and the output shaft of the telescopic rod (14) is rotatably connected to the second support arm (11). A scraper assembly is provided at the bottom of the second support arm (11) for scraping mud.

2. The floating scraper arm of the sludge thickening tank scraper according to claim 1, characterized in that: The bottom of the first support arm (10) is provided with a groove for the slider (15), the slider (15) is slidably disposed in the groove, and the pull rod (13) is rotatably disposed on one side of the slider (15).

3. The floating scraper arm of the sludge thickening tank scraper according to claim 1, characterized in that: The slider (15) is fixedly fitted with a threaded sleeve, the screw is threadedly connected to the threaded sleeve, and the screw is rotatably connected to the first support arm (10).

4. The floating scraper arm of the sludge thickening tank scraper according to claim 1, characterized in that: The pull rod (13) and telescopic rod (14) are respectively installed at the bottom of the first support arm (10) near both ends, and the drive motor (16) is fixedly installed at the end of the first support arm (10).

5. The floating scraper arm of the sludge thickening tank scraper according to claim 1, characterized in that: The scraper assembly includes a main scraper (20), a floating plate (21), and a boom (22). The boom (22) is fixedly connected to the main scraper (20) and fixedly installed to the second support arm (11). The floating plate (21) is slidably connected to the main scraper (20).

6. The floating scraper arm of the sludge thickening tank scraper according to claim 5, characterized in that: The bottom of the main scraper (20) is hollow and forms a sliding cavity adapted to the floating plate (21), which is slidably disposed in the cavity of the main scraper (20).

7. The floating scraper arm of the sludge thickening tank scraper according to claim 5, characterized in that: The bottom of the second support arm (11) is provided with multiple scraper assemblies at equal intervals, and there is a gap between two adjacent floating plates (21) and they do not interfere with each other.

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