Dead-angle-free center transmission mud scraper

Abstract

The utility model discloses a dead-corner-free center transmission mud scraper, and relates to the technical field of center transmission mud scrapers. According to the dead-corner-free center transmission mud scraper, by arranging positioning bolts, bolt holes, scraping plates and the like, the mounting base is fixed through bolt connection of the positioning bolts and the bolt holes, so that the angles of the scraping plates can be adjusted, gaps between the scraping plates are reduced, the scraping plates on the side are adjusted, the scraping plates are attached to the inner wall of a dirt collecting pool, and the dirt collecting pool can be cleaned conveniently. A tensioning pull rod, a stirring blade, a spiral blade and the like are arranged, a supporting cantilever and a main cantilever form a cross-shaped structure, and therefore the tensioning pull rod forms tensioning limiting on the main cantilever, the stability of the structure is improved, and meanwhile when sludge flows into the bottom to be discharged, the cleaning effect is guaranteed. Sludge is stirred and scattered through the stirring blades, and the spiral blades push the sludge to move, so that sludge discharge is facilitated, and blockage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of central transmission mud scrapers, in particular to a central transmission mud scraper without dead angles. Background Art

[0002] The center drive scraper is a mechanical equipment commonly used in water plants or sewage treatment plants to scrape and remove sludge in sedimentation tanks through hydrostatic pressure and other working methods. It is mainly composed of drive mechanism, main shaft, steel beam, scraper plate and underwater bearing and other parts, and has the advantages of corrosion resistance and long service life.

[0003] For example, publication number CN211328268U discloses a central drive scraper. The scraper includes a mounting bracket, a motor, a central drive shaft, a scraper assembly, a bottom shaft, an auxiliary scraper, and a sewage collection pit. The mounting bracket is arranged above the sedimentation tank, the motor is fixedly arranged on the mounting bracket, the central drive shaft is connected to the motor output shaft, the central drive shaft is vertically arranged in the sedimentation tank, the sewage collection pit is arranged at the central bottom of the sedimentation tank, the bottom shaft is vertically arranged in the sewage collection pit, the bottom shaft is connected to the central drive shaft, the scraper assembly is connected to the central drive shaft through a pull rod, the auxiliary scraper is connected to the bottom shaft, a sieve plate is arranged above the sewage collection pit, the sieve plate is arranged between the central drive shaft and the bottom shaft, the scraper assembly includes a scraper arm and a scraper, the scraper arm is provided with a plurality of connecting columns for fixedly connecting the pull rod, and the scraper is arranged on the lower surface of the scraper arm. The utility model has a simple structure, good scraping effect, prevents the pull rod from breaking, prolongs the service life of the equipment, and has a firm connection;

[0004] The scrapers of the central drive scraper in this patent are mostly fixedly installed, which makes it inconvenient to clean the gaps between the scraper and the inner wall and bottom of the sludge collection pit, forming a cleaning dead corner and affecting the scraping effect. At the same time, when the sludge gathers at the bottom, it is easy to form a blockage, resulting in greater resistance to operation and damage to the equipment, and has low practicality. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a central transmission mud scraper without dead angles, which solves the problem of easily forming cleaning dead angles.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a dead angle-free central transmission scraper, comprising a sewage collecting tank, a bridge frame is installed at the upper end of the sewage collecting tank, a driving motor is arranged on the inner side of the upper end of the bridge frame, a transmission main shaft is installed at the lower end of the driving motor, a main cantilever is fixedly installed on the surface of the transmission main shaft, support cantilevers are fixedly installed on the front and rear sides of the surface of the transmission main shaft, a tensioning rod is fixedly installed on the end of the support cantilever away from the transmission main shaft, a fixed seat is installed at the lower end of the surface of the main cantilever, a mounting seat is arranged at the lower end of the fixed seat, a scraper is fixedly installed at the lower end of the mounting seat, a stirring blade is fixedly connected to the lower end of the surface of the transmission main shaft, and a spiral blade is arranged on the surface of the transmission main shaft below the stirring blade.

[0007] Preferably, two main cantilevers are symmetrically arranged about the vertical center line of the transmission main shaft, and a reinforcement rod is arranged on the inner side of the main cantilever.

[0008] Preferably, two tension rods are symmetrically arranged on the left and right sides of the supporting cantilever, and one end of the two tension rods away from the supporting cantilever is fixedly connected to the main cantilever.

[0009] Preferably, the fixing seats are distributed at equal intervals, the lower ends of the fixing seats are rotatably connected to the mounting seats, the front ends of the fixing seats are fixedly connected to a positioning plate, and the positioning plate is threadedly mounted with a positioning pin.

[0010] Preferably, the surface of the mounting seat is provided with latch holes, the latch holes are distributed in a circular array, and the latch holes are latch-connected to the positioning latch.

[0011] Preferably, the stirring blades are distributed in a circular array with the center of the transmission main shaft, and the length of the stirring blades and the width of the spiral blades are matched to each other.

[0012] Beneficial Effects

[0013] The utility model provides a central transmission mud scraper without dead angles. Compared with the prior art, it has the following beneficial effects:

[0014] 1. The center-drive scraper without dead angles is provided with positioning pins, pin holes and scrapers, etc., and the positioning pins and the pin holes are connected to fix the mounting base, so that the angle of the scrapers can be adjusted to reduce the gap between the scrapers, and the side scrapers are adjusted so that the scrapers and the inner wall of the sewage collection tank fit each other, and the scrapers clean dead angles when rotating, thereby ensuring the cleaning effect.

[0015] 2. The dead angle-free central transmission scraper forms a cross-shaped structure by arranging tension rods, stirring blades and spiral blades, etc., supporting the cantilever and the main cantilever, so that the tension rod forms a tension limit for the main cantilever, increasing the stability of the structure. At the same time, when the sludge flows into the bottom for discharge, the stirring blades stir and break up the sludge, and the spiral blades push the sludge to move, which facilitates discharge and reduces blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the main cantilever three-dimensional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing seat of the utility model.

[0019] In the figure: 1. sewage collection tank; 2. bridge; 3. driving motor; 4. transmission main shaft; 5. main cantilever; 51. reinforcement rod; 6. supporting cantilever; 7. tensioning rod; 8. fixing seat; 81. positioning plate; 82. positioning pin; 9. mounting seat; 91. pin hole; 10. scraper; 11. stirring blade; 12. spiral blade. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a dead angle-free central transmission mud scraper, including a sewage collecting tank 1, a bridge frame 2 is installed at the upper end of the sewage collecting tank 1, a driving motor 3 is arranged on the inner side of the upper end of the bridge frame 2, a transmission main shaft 4 is installed at the lower end of the driving motor 3, a main cantilever 5 is fixedly installed on the surface of the transmission main shaft 4, two main cantilevers 5 are symmetrically arranged about the vertical center line of the transmission main shaft 4, a reinforcing rod 51 is arranged on the inner side of the main cantilever 5, and a supporting cantilever 6 is fixedly installed on the front and rear sides of the surface of the transmission main shaft 4, and a tensioning pull rod 7 is fixedly installed on one end of the supporting cantilever 6 away from the transmission main shaft 4, and the tensioning pull rod 7 is symmetrically arranged on the left and right sides of the supporting cantilever 6, and the two tensioning pull rods 7 are fixedly connected to the main cantilever 5 at one end away from the supporting cantilever 6, and a cross structure is formed by the supporting cantilever 6 and the main cantilever 5, so that the tensioning pull rod 7 forms a tension limit for the main cantilever 5, and the main cantilever 5 is a U-shaped structure, which greatly improves the firmness of the structure;

[0022] A fixing seat 8 is installed at the lower end of the surface of the main cantilever 5, and the fixing seats 8 are distributed at equal intervals. The lower end of the fixing seat 8 is rotatably connected to the mounting seat 9. A positioning plate 81 is fixedly connected to the front end of the fixing seat 8. A positioning pin 82 is threadedly installed on the positioning plate 81. A mounting seat 9 is provided at the lower end of the fixing seat 8. Pin holes 91 are opened on the surface of the mounting seat 9. The pin holes 91 are distributed in a circular array, and the pin holes 91 are connected with the positioning pins 82. Through the pin connection between the positioning pins 82 and the pin holes 91, it is convenient to limit and fix the mounting seat 9, so that the positioning pins 82 are adapted to different pin holes 91, and the angle of the scraper 10 can be adjusted to reduce the gap between the scraper 10 and the sewage collection tank 1, reduce the cleaning dead angle, and improve practicality.

[0023] A scraper 10 is fixedly installed at the lower end of the mounting seat 9, a stirring blade 11 is fixedly connected to the lower end of the surface of the transmission main shaft 4, and a spiral blade 12 is arranged on the surface of the transmission main shaft 4 below the stirring blade 11. The stirring blades 11 are distributed in a circular array with the center of the transmission main shaft 4, and the length of the stirring blade 11 and the width of the spiral blade 12 are adapted to each other. When discharging mud, the stirring blade 11 is used to stir and break up the sludge, and the spiral blade 12 is used to push the sludge to move, so as to facilitate mud discharge and reduce blockage.

[0024] During operation, the positioning pin 82 and the pin hole 91 are first connected to facilitate the limiting and fixing of the mounting base 9, so that the positioning pin 82 is adapted to different pin holes 91, and the angle of the scraper 10 can be adjusted to reduce the gap between the scraper 10 and the sewage collection tank 1, and reduce the cleaning dead angle. The overall supporting cantilever 6 and the main cantilever 5 form a cross structure, so that the tensioning rod 7 forms a tension limit for the main cantilever 5, and increases the structural strength of the main cantilever 5. During the cleaning process, the sludge gathers to the bottom of the sewage collection tank 1, and the sludge is stirred and broken up by the stirring blade 11, and the spiral blade 12 pushes the sludge to move, which is convenient for sludge discharge, reduces blockage, and improves practicality.

[0025] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A central drive scraper without dead angles, comprising a sludge collecting tank (1), characterized in that: A bridge frame (2) is installed at the upper end of the sewage collecting tank (1), a driving motor (3) is arranged on the inner side of the upper end of the bridge frame (2), a transmission main shaft (4) is installed at the lower end of the driving motor (3), a main cantilever (5) is fixedly installed on the surface of the transmission main shaft (4), support cantilevers (6) are fixedly installed on both the front and rear sides of the surface of the transmission main shaft (4), a tensioning rod (7) is fixedly installed on the end of the support cantilever (6) away from the transmission main shaft (4), a fixed seat (8) is installed at the lower end of the surface of the main cantilever (5), a mounting seat (9) is arranged at the lower end of the fixed seat (8), a scraper (10) is fixedly installed at the lower end of the mounting seat (9), a stirring blade (11) is fixedly connected to the lower end of the surface of the transmission main shaft (4), and a spiral blade (12) is arranged on the surface of the transmission main shaft (4) below the stirring blade (11).

2. A dead angle-free central transmission mud scraper according to claim 1, characterized in that: Two main cantilevers (5) are symmetrically arranged about the vertical center line of the transmission main shaft (4), and a reinforcement rod (51) is arranged on the inner side of the main cantilever (5).

3. The central transmission mud scraper without dead angle according to claim 1, characterized in that: Two tension rods (7) are symmetrically arranged on the left and right sides of the supporting cantilever (6), and one end of the two tension rods (7) away from the supporting cantilever (6) is fixedly connected to the main cantilever (5).

4. The central transmission mud scraper without dead angle according to claim 1, characterized in that: The fixing seats (8) are distributed at equal intervals, the lower ends of the fixing seats (8) are rotatably connected to the mounting seats (9), the front ends of the fixing seats (8) are fixedly connected to a positioning plate (81), and a positioning pin (82) is threadedly mounted on the positioning plate (81).

5. The central transmission mud scraper without dead angle according to claim 4, characterized in that: The surface of the mounting seat (9) is provided with latch holes (91), the latch holes (91) are distributed in a ring array, and the latch holes (91) are latch-connected with the positioning latch (82).

6. The central transmission mud scraper without dead angle according to claim 5, characterized in that: The stirring blades (11) are distributed in a circular array with the center of the transmission main shaft (4), and the length of the stirring blades (11) and the width of the spiral blades (12) are adapted to each other.

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