A double chain plate harrow tooth grader

Abstract

The utility model relates to sewage treatment equipment's technical field, more particularly, disclose a double chain plate rake tooth grating machine includes: two side plates, parallel installation, guide shaft, rotatably installed on the side plate, floating seat, movably installed on the side plate, bearing seat, fixedly installed on the floating seat, driving shaft, rotatably installed in the bearing seat, adjusting assembly for adjusting the installation position of floating seat, double chain plate chain, tensioned on driving shaft and guide shaft, gyro wheel, set up between the outside chain plate and the inside chain plate of double chain plate chain, shaft sleeve, cover in gyro wheel, rake tooth component, wear in the shaft sleeve, drive assembly for driving driving shaft rotation, through using the utility model, can effectively improve the load capacity, guarantee rake tooth grating machine whole's service life, still can be convenient for staff to the installation debugging work of rake tooth component and double chain plate chain.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment equipment, and in particular to a double-chain plate rake bar screen machine. Background Technology

[0002] Rotary bar screens are core components in water treatment equipment used for continuous and automatic interception and removal of fluid debris. Driven by a motor, the rake chain rotates against the direction of water flow, causing the rake teeth to rotate and scrape away the debris intercepted by the bar. When the rake chain reaches the top of the equipment, the rake teeth change direction due to the guidance of the grooved wheel and curved rail, and the debris falls under its own gravity to achieve self-cleaning.

[0003] However, in the existing bar screen cleaning machine, on the one hand, the chain used to drive the rake teeth is a single chain plate design, the chain has a weak load capacity, and the rollers are easy to rub directly against the rake tooth shaft, causing severe wear of the rollers and rake tooth shaft, resulting in short service life, high replacement frequency, and high maintenance costs in the later stage. On the other hand, the drive shaft used to drive the chain is rotatably mounted on the bar screen only through bearings; in the early stages of installation and commissioning, the drive shaft cannot be moved on the bar screen, the installation position of the drive shaft cannot be adjusted, and it is inconvenient to install and commission the rake teeth and drive chain. Utility Model Content

[0004] In view of the above problems, this utility model provides a double-chain plate rake tooth bar screen machine, the purpose of which is to ensure equipment stability, extend service life, and facilitate equipment installation and adjustment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A double-chain plate rake bar screen is provided, comprising: two side plates installed in parallel; a guide shaft rotatably mounted on the side plates; a floating seat movably mounted on the side plates; a bearing seat fixedly mounted on the floating seat; a drive shaft rotatably mounted within the bearing seat; an adjustment assembly for adjusting the installation position of the floating seat; a double-chain plate chain tensioned on the drive shaft and the guide shaft; rollers disposed between the outer and inner chain plates of the double-chain plate chain; bushings fitted inside the rollers; rake tooth assemblies passing through the bushings; and a drive assembly for driving the drive shaft to rotate.

[0006] Furthermore, the adjustment assembly includes: a fixed seat, welded to the side plate; a slotted hole, formed on the fixed seat; and a first bolt, passing through the floating seat and the slotted hole, capable of locking the floating seat onto the fixed seat.

[0007] Furthermore, the rake tooth assembly includes: a mounting shaft, the end of which passes through a bushing; and rake teeth, on which circular holes and strip holes are formed, the circular holes and strip holes passing through two adjacent mounting shafts.

[0008] Furthermore, the bar screen machine also includes: a copper sleeve fitted onto the end of the guide shaft; a shaft base bolted to the side plate, with the copper sleeve located inside the shaft base; and a guide wheel mounted on the guide shaft for tensioning the double-chain plate chain.

[0009] Furthermore, the bar screen also includes a curved rail, located on one side of the double-chain plate chain, and detachably mounted on the side plate along the distribution path of the double-chain plate chain.

[0010] Furthermore, the bar screen also includes: a rotating shaft, rotatably mounted on the side plate, drivingly connected to the drive shaft, located on one side of the double-chain plate chain; and a cleaning plate, fixedly mounted on the rotating shaft.

[0011] Furthermore, the drive assembly includes a servo motor, the output shaft of which is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the drive shaft via a transmission chain.

[0012] The beneficial effects of this utility model are as follows: In this utility model, by setting a double-chain plate to support the rake tooth assembly, the load capacity is effectively improved; and the roller is designed between the outer chain plate and the inner chain plate, so that the rake tooth assembly and the roller do not generate direct friction under the action of the bushing, which extends the service life of the roller and the rake tooth assembly and ensures the overall service life of the rake tooth bar screen.

[0013] In this utility model, an adjustment component is also provided, which can adjust the installation position of the drive shaft on the side plate. In the early stage of installation and debugging, the drive shaft can move on the side plate, which makes it easier for the rake tooth assembly to fix the bearing seat and tension the double chain plate during the installation and adjustment process, making it easier for the staff to install and debug the rake tooth assembly and the double chain plate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the bar screen provided in an embodiment of this application.

[0015] Figure 2 for Figure 1 Enlarged diagram of point A.

[0016] Figure 3 This is a side view of the mounting of the drive shaft and guide shaft provided in an embodiment of this application.

[0017] Figure 4 for Figure 3 Enlarged diagram of point B.

[0018] Figure 5 This is a side view of the installation of the drive chain provided in an embodiment of this application.

[0019] Figure 6 This is a front view of the mounting structure of the guide shaft provided in an embodiment of this application.

[0020] Figure 7 This is a front view of the mounting structure of the mounting shaft provided in an embodiment of this application.

[0021] The components are as follows: 1. Side plate; 11. Drive shaft; 12. Guide shaft; 13. Drive assembly; 14. Reducer; 15. Transmission chain; 16. Transmission sprocket; 17. Tensioning sprocket; 21. Floating seat; 22. Bearing seat; 3. Double chain plate; 31. Outer chain plate; 32. Inner chain plate; 33. Roller; 34. Bushing; 35. Slag baffle plate; 41. Fixed seat; 42. Waist-shaped hole; 43. First bolt; 51. Mounting shaft; 52. Rake teeth; 53. Circular hole; 54. Strip hole; 61. Copper sleeve; 62. Shaft base; 63. Guide wheel; 64. Shim; 7. Curved rail; 81. Rotating shaft; 82. Slag cleaning plate; 9. Slag baffle plate; 91. Sealing plate. Detailed Implementation

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] Reference Figure 1 As shown in the embodiment of this application, a double-chain plate rake tooth 52 bar screen machine is disclosed, comprising: two side plates 1, installed in parallel; a guide shaft 12, rotatably mounted on the side plates 1; a floating seat 21, movably mounted on the side plates 1; a bearing seat 22, fixedly mounted on the floating seat 21; a drive shaft 11, rotatably mounted in the bearing seat 22; an adjustment assembly for adjusting the installation position of the floating seat 21; a double-chain plate chain 3, tensioned on the drive shaft 11 and the guide shaft 12; rollers 33, disposed between the outer chain plate 31 and the inner chain plate 32 of the double-chain plate chain 3; a bushing 34, sleeved inside the roller 33; a rake tooth 52 assembly, passing through the bushing 34; and a drive assembly 13 for driving the drive shaft 11 to rotate.

[0024] In specific operation, a sprocket capable of engaging the double-chain plate chain 3 is installed on the drive shaft 11, the side plate 1 is installed on one side of the grid, and the rake teeth 52 of the rake tooth 52 assembly are inserted between the grids. The drive shaft 11 is driven to rotate by the drive assembly 13, thereby driving the double-chain plate chain 3 to perform cyclical motion, which in turn drives the rake tooth 52 assembly to perform cyclical motion, thus scraping away the slag from the grid.

[0025] In this utility model, the load capacity is effectively improved by setting a double chain plate 3 to support the rake tooth 52 assembly; and the roller 33 is designed between the outer chain plate 31 and the inner chain plate 32. Under the action of the bushing 34, the rake tooth 52 assembly and the roller 33 do not generate direct friction, which extends the service life of the roller 33 and the rake tooth 52 assembly and ensures the overall service life of the rake tooth 52 bar screen machine.

[0026] In this utility model, an adjustment component is also provided, which can adjust the installation position of the drive shaft 11 on the side plate 1. In the early stage of installation and debugging, the drive shaft 11 can move on the side plate 1, so that the rake tooth 52 assembly can fix the bearing seat 22 and tension the double chain plate chain 3 during the installation and adjustment process, which facilitates the installation and debugging of the rake tooth 52 assembly and the double chain plate chain 3 by the staff.

[0027] Reference Figure 2 As shown, the adjustment assembly includes: a fixed seat 41, which is welded and installed on the side plate 1; a waist-shaped hole 42, which is opened on the fixed seat 41; and a first bolt 43, which passes through the floating seat 21 and the waist-shaped hole 42, and can lock the floating seat 21 onto the fixed seat 41.

[0028] In practical use, when it is necessary to adjust the installation position of the drive shaft 11, the floating seat 21 can be slid along the length of the waist-shaped hole 42 on the movable seat. After sliding the floating seat 21 to the desired position, the screw of the first bolt 43 is passed through the floating seat 21, the nut of the screw presses the floating seat 21, and the other end of the screw is locked with a nut to complete the fixed installation of the floating seat 21.

[0029] Specifically, the rake tooth 52 assembly includes: a mounting shaft 51, the end of which passes through a bushing 34; and rake teeth 52, on which circular holes 53 and strip holes 54 are provided, the circular holes 53 and strip holes 54 respectively passing through two adjacent mounting shafts 51.

[0030] It is worth mentioning that, along the axial direction of the mounting shaft 51, a number of rake teeth 52 are installed at intervals on the mounting shaft 51 to form a rake tooth curtain.

[0031] In this embodiment, the mounting shaft 51 passes through the bushing 34. Under the action of the bushing 34, the mounting shaft 51 and the roller 33 do not rub directly, which extends the service life of the roller 33 and the mounting shaft 51.

[0032] Reference Figure 3 and Figure 4 As shown, a circular hole 53 is opened at the end of the rake tooth 52, and a strip hole 54 is opened in the middle of the rake tooth 52. The mounting shaft 51 can float in the strip hole 54, which can optimize the force on the rake tooth 52 during the rake tooth curtain rotation process, reduce the risk of the rake tooth 52 breaking due to long-term force, and extend the service life of the rake tooth 52.

[0033] Reference Figure 6 As shown, in this embodiment, the bar screen machine further includes: a copper sleeve 61, which is sleeved on the end of the guide shaft 12; a shaft base 62, which is bolted to the side plate 1, and the copper sleeve 61 is disposed inside the shaft base 62; and a guide wheel 63, which is disposed on the guide shaft 12 and is used to tension the double chain plate chain 3.

[0034] Specifically, the double-chain plate chain 3 is tensioned by the rolling contact between the guide wheel 63 and the double-chain plate chain 3, ensuring the normal operation of the double-chain plate chain 3.

[0035] Preferably, a shim 64 is provided between the copper sleeve 61 and the shaft base 62. Both the shim 64 and the copper sleeve 61 are made of copper alloy. The guide shaft 12 is installed through the copper sleeve 61 and the shim 64 to ensure wear resistance and improve service life.

[0036] Reference Figure 7 As shown, the guide wheel 63 is mounted on the guide shaft 12 by a cotter pin. A slag-separating plate 35 is also installed between the double-chain plate chain 3 and the rake teeth 52. The slag-separating plate 35 shields the double-chain plate chain 3, further protecting the double-chain plate chain 3.

[0037] Preferably, two guide shafts 12 are installed on the side plate 1, one of which is submerged in water, and the other guide shaft 12 is installed on the water surface on one side of the drive shaft 11.

[0038] In this embodiment, the guide wheel 63 adopts a detachable design and a solid contour design, which extends the service life of the guide wheel 63 system and improves the reliability of the equipment.

[0039] In addition, the underwater guide wheel is not equipped with other vulnerable transmission components. The transmission components adopt a double wear-resistant copper alloy structure design, which extends the service life, prevents the underwater guide wheel 63 from malfunctioning due to damage to the transmission components, improves the overall reliability of the equipment, and reduces maintenance costs.

[0040] Specifically, the bar screen also includes: a curved rail 7, located on one side of the double-chain plate chain 3, and detachably installed on the side plate 1 along the distribution path of the double-chain plate chain 3; the curved rail 7 can also be detachably installed on the side plate 1 by bolts, adopting a detachable design, which facilitates the replacement of the curved rail 7 and reduces the later maintenance cost.

[0041] Continue to refer to Figure 3 As shown, the bar screen also includes: a rotating shaft 81, which is rotatably mounted on the side plate 1 and connected to the drive shaft 11, located on one side of the double chain plate chain 3; and a slag cleaning plate 82, which is fixedly mounted on the rotating shaft 81.

[0042] By setting the rotating shaft 81, kinetic energy can be transferred to the rotating shaft 81 during the rotation of the drive shaft 11, causing the rotating shaft 81 to rotate, thereby driving the cleaning plate 82 to rotate, and the cleaning plate 82 removes the entangled material wrapped around the tip of the rake teeth 52.

[0043] Specifically, the drive assembly 13 includes a servo motor, the output shaft of which is connected to the input shaft of the reducer 14, and the output shaft of the reducer 14 is connected to the drive shaft 11 via a transmission chain 15.

[0044] Reference Figure 5 As shown, sprockets are provided on the output shaft, drive shaft 11, and rotating shaft 81 of the reducer 14. The output shaft and drive shaft 11 of the reducer 14 are driven by a transmission chain 15, and the drive shaft 11 and rotating shaft 81 are also driven by a transmission chain 15. A tensioning sprocket 17 is also provided between the output shaft and drive shaft 11 of the reducer 14 to tension the transmission chain 15, and a tensioning sprocket 17 is also provided between the drive shaft 11 and rotating shaft 81 to tension the transmission sprocket 16.

[0045] Specifically, a support seat is provided on the side plate 1, and a waist-shaped hole 42 is also provided on the support seat. The main shaft of the tension sprocket 17 is slidably disposed in the waist-shaped hole 42. The main shaft slides in the waist-shaped hole 42, which can adjust the installation position of the tension sprocket 17 and ensure that the tension sprocket 17 tensions and installs the transmission chain 15. The main shaft can be locked to the support seat with screws.

[0046] It is worth mentioning that the rake teeth 52 can be made of nylon, nylon composite material or ABS material; a rubber sealing plate 91 is also provided on one side of the side plate 1, and a rubber baffle plate 9 is also provided at the bottom of the side plate 1; in addition, other parts can be made of 304 stainless steel or 45 steel.

[0047] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they learn the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the machine equivalents of the claims of the present invention, the present invention also intends to include these modifications and modifications.

Claims

1. A double-chain plate rake bar screen, characterized in that, include: Two side panels (1) are installed in parallel; The guide shaft (12) is rotatably mounted on the side plate (1); A floating seat (21) is movably mounted on the side plate (1); The bearing housing (22) is fixedly installed on the floating seat (21); The drive shaft (11) is rotatably mounted in the bearing housing (22); An adjustment component is used to adjust the installation position of the floating seat (21); A double-chain plate chain (3) is tensioned on the drive shaft (11) and the guide shaft (12); Roller (33) is disposed between the outer chain plate (31) and the inner chain plate (32) of the double chain plate chain (3); A bushing (34) is fitted inside the roller (33); The rake teeth (52) assembly is inserted into the bushing (34); Drive assembly (13) is used to drive the drive shaft (11) to rotate.

2. The double-chain plate rake bar screen according to claim 1, characterized in that, The adjustment components include: The fixing seat (41) is welded and installed on the side plate (1); A waist-shaped hole (42) is provided on the fixing seat (41); The first bolt (43), passing through the floating seat (21) and the waist-shaped hole (42), can lock the floating seat (21) onto the fixed seat (41).

3. The double-chain plate rake bar screen according to claim 1, characterized in that, The rake tooth (52) assembly includes: Mounting shaft (51), the end of which passes through the bushing (34); The rake teeth (52) have circular holes (53) and strip holes (54) on them, and the circular holes (53) and strip holes (54) pass through two adjacent mounting shafts (51).

4. The double-chain plate rake bar screen according to claim 1, characterized in that, Also includes: A copper sleeve (61) is fitted onto the end of the guide shaft (12); The shaft base (62) is bolted to the side plate (1), and the copper sleeve (61) is set inside the shaft base (62); The guide wheel (63) is mounted on the guide shaft (12) and is used to tension the double-chain plate chain (3).

5. The double-chain plate rake bar screen according to claim 1, characterized in that, Also includes: The curved rail (7) is located on one side of the double-chain plate chain (3) and is detachably installed on the side plate (1) along the distribution path of the double-chain plate chain (3).

6. The double-chain plate rake bar screen according to claim 1, characterized in that, Also includes: The rotating shaft (81) is rotatably mounted on the side plate (1) and is connected to the drive shaft (11), located on one side of the double-chain plate chain (3); The slag removal plate (82) is fixedly mounted on the rotating shaft (81).

7. The double-chain plate rake bar screen according to claim 1, characterized in that, The drive assembly (13) includes a servo motor, the output shaft of which is connected to the input shaft of the reducer (14), and the output shaft of the reducer (14) is connected to the drive shaft (11) via a transmission chain (15).

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