Mud scraper with scraper blade capable of being replaced quickly

Abstract

The mud scraper comprises a mud scraper machine shell, rotating shafts are arranged on the left side and the right side of the upper portion and the left side and the right side of the lower portion of the front side wall and the rear side wall of the mud scraper machine shell respectively, chain wheels are fixedly sleeved with the front ends and the rear ends of the rotating shafts respectively, and chains are sleeved with the four chain wheels on the front side and the four chain wheels on the rear side respectively. Scraper plate mounting seats are fixedly mounted at the same opposite positions of the front chain and the rear chain, and scrapers are arranged at the top ends of the scraper plate mounting seats and connected with the scraper plate mounting seats through quick connecting assemblies. Through the matching design of the scraper, the quick connecting assembly and the scraper mounting seat, the fixing block of the quick connecting assembly moves towards the fixing groove, so that the scraper can be quickly pulled out of the scraper mounting seat without repeatedly locking screws, the efficiency of replacing and mounting the scraper is improved, and the labor intensity of workers is reduced. The defect that an existing mud scraping plate is fixed through welding and a plurality of bolts is overcome.

Description

Technical Field

[0001] The utility model relates to the field of chain-type mud scrapers, in particular to a mud scraper with a rapidly replaceable scraper blade. Background Art

[0002] The scraper is the main equipment for sewage sludge treatment. The scraper is widely used in urban and rural environmental protection sewage sludge treatment industry. The sedimentation tank where the scraper is installed is generally made of concrete. A sludge trough is provided at the bottom of the sedimentation tank. The sewage sludge enters the sedimentation tank and settles based on the gravity of solid particles or is concentrated with drugs to make the upper part clarified water and the lower part settled sludge slurry. The scraper can push the settled sludge slurry to the sludge trough through the scraper plate, and then discharge it. The clarified water is discharged from the upper part of the sedimentation tank to achieve the purpose of separating sludge and clarified water. In the existing scraper, during the long-term scraping process, the scraper and the sludge at the bottom of the pool are constantly rubbed, causing the scraper to wear and tear. The scraper needs to be replaced regularly, and the scraper and the chain are usually fixed directly with screws. When disassembling and assembling, the operation is cumbersome, time-consuming and labor-intensive.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a mud scraper with a quickly replaceable scraper blade to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A scraper with a quickly replaceable scraper comprises a scraper casing, wherein rotating shafts are respectively provided on the left and right sides of the upper part and the left and right sides of the lower part of the front and rear side walls of the scraper casing, and the front and rear ends of the rotating shaft are respectively fixed with sprockets, and the four front sprockets and the four rear sprockets are respectively equipped with chains, and a scraper mounting seat is fixedly installed at the same relative position of the front and rear chains, and a scraper is provided on the top of the scraper mounting seat, and the scraper is connected to the scraper mounting seat through a quick connection component.

[0007] Preferably, the quick connection assembly includes a mounting groove opened at the top of the scraper mounting seat, fixing blocks are opened on both sides of the mounting groove, and fixing grooves matching the fixing blocks are opened on both sides of the scraper located in the mounting groove.

[0008] Preferably, the fixing block is of an L-shaped structure, and an L-shaped bracket is provided at the bottom end of the fixing block, and a fixing shaft connected to the scraper mounting seat is provided at the bending part of the L-shaped bracket.

[0009] Preferably, the ends of the two groups of L-shaped brackets close to each other are each provided with an inclined connecting rod, and the bottom end of the connecting rod is provided with a transversely arranged moving block.

[0010] Preferably, a screw rod penetrating the moving block is vertically arranged in the scraper mounting seat, and the moving block is connected to the screw rod via a threaded sleeve.

[0011] Preferably, a worm wheel is sleeved on the lead screw and located above the moving block, and a worm matching the worm wheel is provided on one side of the worm wheel.

[0012] Preferably, one end of the worm gear extends to the outside of the scraper mounting seat and is provided with a knob, and the bottom ends of both ends of the scraper are provided with symmetrically arranged guide blocks.

[0013] Preferably, guide grooves matching the guide blocks are provided on both sides of the installation groove.

[0014] The beneficial effects of the utility model are as follows: through the coordinated design of the scraper, the quick connection assembly and the scraper mounting seat, the fixing block of the quick connection assembly moves toward the fixing groove, thereby realizing the quick removal of the scraper from the scraper mounting seat without the need to repeatedly tighten the screws, thereby improving the efficiency of replacing and installing the scraper, and solving the problem that the existing scraper is fixed by welding and multiple bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a mud scraper with a quickly replaceable scraper blade according to an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a scraper mounting seat and a scraper mounting state in a mud scraper capable of quickly replacing a scraper according to an embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a scraper mounting seat in a mud scraper capable of quickly replacing the scraper according to an embodiment of the utility model;

[0019] Figure 4 It is a structural schematic diagram of a scraper in a mud scraper with a rapidly replaceable scraper according to an embodiment of the utility model;

[0020] Figure 5It is a structural schematic diagram of a quick connection assembly in a mud scraper with a quickly replaceable scraper according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Scraper casing; 2. Chain; 3. Scraper mounting seat; 4. Scraper; 5. Mounting groove; 6. Fixed block; 7. Fixed groove; 8. L-shaped bracket; 9. Fixed shaft; 10. Connecting rod; 11. Moving block; 12. Screw; 13. Threaded sleeve; 14. Worm gear; 15. Worm; 16. Knob; 17. Guide block; 18. Guide groove. DETAILED DESCRIPTION

[0023] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] According to an embodiment of the utility model, a mud scraper with a quickly replaceable scraper blade is provided.

[0025] Embodiment 1;

[0026] like Figure 1-5 As shown, a scraper with a quickly replaceable scraper according to an embodiment of the utility model comprises a scraper casing 1, wherein rotating shafts are respectively provided on the left and right sides of the upper part and the left and right sides of the lower part of the front and rear side walls of the scraper casing 1, and the front and rear ends of the rotating shaft are respectively fixed with sprockets, and the four front sprockets and the four rear sprockets are respectively equipped with chains 2, and a scraper mounting seat 3 is fixedly installed at the same relative position of the front and rear chains 2, and a scraper 4 is provided on the top of the scraper mounting seat 3, and the scraper 4 is connected to the scraper mounting seat 3 through a quick connection component.

[0027] Embodiment 2:

[0028] like Figure 1-5 As shown, the quick connection assembly includes a mounting groove 5 opened at the top of the scraper mounting seat 3, and fixed blocks 6 are opened on both sides of the mounting groove 5. The scraper 4 is located in the mounting groove 5 and has fixed grooves 7 matching the fixed blocks 6 on both sides. The fixed block 6 is an L-shaped structure, and an L-shaped bracket 8 is provided at the bottom end of the fixed block 6. A fixed shaft 9 connected to the scraper mounting seat 3 is provided at the bending part of the L-shaped bracket 8. The ends of the two groups of L-shaped brackets 8 close to each other are provided with an inclined connecting rod 10, and the bottom end of the connecting rod 10 is provided with a horizontally arranged moving block 11.

[0029] Embodiment three;

[0030] like Figure 1-5 As shown, a screw rod 12 penetrating the moving block 11 is vertically provided in the scraper mounting seat 3, and the moving block 11 is connected to the screw rod 12 through a threaded sleeve 13. A worm gear 14 is sleeved on the screw rod 12 and located above the moving block 11. A worm 15 matching the worm gear is provided on one side of the worm gear. One end of the worm gear 15 extends to the outside of the scraper mounting seat 3 and a knob 16 is provided. The bottom ends of both ends of the scraper 4 are provided with symmetrically arranged guide blocks 17, and guide grooves 18 matching the guide blocks 17 are opened on both sides of the mounting groove 5.

[0031] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0032] In actual application, after the scraper is stopped, the scraper to be replaced is rotated to the upper liquid level of the scraper casing 1 by controlling the motor to rotate for a certain period of time, and the rotating knob 16 drives the worm 15 to rotate. Through the meshing transmission of the worm 15 and the worm wheel 14, the worm wheel 14 drives the screw 12 to rotate, and the threaded sleeve 13 drives the moving block 11 to move up and down with the rotation of the screw 12. When the moving block 11 moves up, the connecting rod 10 pushes the L-shaped bracket 8 to rotate in both directions with the fixed axis 9 as the axis point, so that the L-shaped bracket 8 drives the fixed block 6 to rotate in both directions synchronously and separate from the fixed groove 7, thereby realizing the rapid removal of the scraper 4 from the mounting groove 5 of the scraper mounting seat 3.

[0033] To sum up, with the help of the above-mentioned technical scheme of the utility model, through the coordinated design of the scraper 4, the quick connection assembly and the scraper mounting seat 3, the fixing block 6 of the quick connection assembly moves toward the fixing groove 7, thereby realizing the quick removal of the scraper 4 from the scraper mounting seat 3 without the need to repeatedly tighten the screws, thereby improving the efficiency of replacing and installing the scraper, and solving the problem that the existing scraper is fixed by welding and multiple bolts.

[0034] The above description is only a preferred embodiment of the present invention and 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 in the protection scope of the present invention.

Claims

1. A scraper with a scraper blade that can be quickly replaced, comprising a scraper casing (1), wherein the scraper casing (1) has rotating shafts on the left and right sides of the upper part and the left and right sides of the lower part of the front and rear side walls, respectively, and the front and rear ends of the rotating shaft are respectively fixed with sprockets, and the four front sprockets and the four rear sprockets are respectively fitted with chains (2), and the scraper blade mounting seats (3) are fixedly mounted on the same relative positions of the front and rear chains (2), characterized in that: A scraper (4) is provided at the top end of the scraper mounting seat (3), and the scraper (4) is connected to the scraper mounting seat (3) via a quick connection assembly.

2. A scraper with a scraper blade that can be quickly replaced according to claim 1, characterized in that: The quick connection assembly comprises a mounting groove (5) located at the top of the scraper mounting seat (3), fixing blocks (6) are provided on both sides of the mounting groove (5), and fixing grooves (7) matching the fixing blocks (6) are provided on both sides of the scraper (4) located in the mounting groove (5).

3. A scraper with a scraper blade that can be quickly replaced according to claim 2, characterized in that: The fixing block (6) is of an L-shaped structure, and an L-shaped bracket (8) is provided at the bottom end of the fixing block (6), and a fixing shaft (9) connected to the scraper mounting seat (3) is provided at the bending part of the L-shaped bracket (8).

4. A mud scraper with a quickly replaceable scraper blade according to claim 3, characterized in that: The ends of the two groups of L-shaped brackets (8) close to each other are each provided with an inclined connecting rod (10), and the bottom end of the connecting rod (10) is provided with a transversely arranged moving block (11).

5. A mud scraper with a quickly replaceable scraper blade according to claim 4, characterized in that: A screw rod (12) penetrating the moving block (11) is vertically arranged in the scraper mounting seat (3); the moving block (11) is connected to the screw rod (12) via a threaded sleeve (13).

6. A scraper with a scraper blade that can be quickly replaced according to claim 5, characterized in that: A worm wheel (14) is sleeved on the lead screw (12) and located above the moving block (11), and a worm (15) matching the worm wheel is provided on one side of the worm wheel.

7. A mud scraper with a quickly replaceable scraper blade according to claim 6, characterized in that: One end of the worm (15) extends to the scraper mounting seat (3) and is provided with a knob (16), and the bottom ends of both ends of the scraper (4) are provided with symmetrically arranged guide blocks (17).

8. A mud scraper with a quickly replaceable scraper blade according to claim 7, characterized in that: Guide grooves (18) matching the guide blocks (17) are provided on both sides of the installation groove (5).

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