Grid structure with chain tensioning function

Abstract

The utility model relates to a grid structure with a chain tensioning function, and relates to the technical field of grid structures. The device comprises a rack, a driving chain wheel, a driven chain wheel, a transmission chain, a grating, a driving part and a tensioning mechanism, the driving chain wheel and the driven chain wheel are both rotationally connected to the rack, the driving chain wheel and the driven chain wheel are sleeved with the transmission chain, and the grating is installed on the transmission chain. The driving part is used for driving the driving sprocket to rotate; the tensioning mechanism comprises a mounting plate, a connecting rod, an abutting gear and a driving assembly; the mounting plate is fixedly connected to the rack, one end of the connecting rod is rotationally connected to the mounting plate, the abutting gear is rotationally connected to the connecting rod, and the abutting gear is meshed with the transmission chain; the driving assembly is used for driving the connecting rod to rotate; the device has the effect of improving the meshing tightness of the chain and the chain wheel.

Description

Technical Field

[0001] The present application relates to the technical field of grid structures, and in particular to a grid structure with a chain tensioning function. Background Art

[0002] The screen machine is a solid-liquid separation equipment that can continuously remove impurities from the fluid. It is an indispensable special equipment in the production process of urban sewage treatment, water plants, power plant water inlets, textiles, food processing, papermaking, leather and other industries. It is a solid-liquid screening equipment commonly used in China. The rake teeth in the screen machine are made of stainless steel, which has good corrosion resistance and high temperature resistance. The rake teeth are combined into a grid surface.

[0003] The target teeth and target teeth cleaning mechanism of the existing grille machine are linked by a motor, and a chain is used for transmission during the linkage process. The chain is prone to loosening after a long period of action, resulting in a decrease in the transmission effect between the sprocket and the chain, which makes it easy for the chain to fall off, so there is room for improvement. Utility Model Content

[0004] In order to improve the tightness of the meshing between the chain and the sprocket, the present application provides a grid structure with a chain tensioning function.

[0005] The present application provides a grid structure with a chain tensioning function, which adopts the following technical solution:

[0006] A grille structure with a chain tensioning function comprises a frame, a driving sprocket, a driven sprocket, a transmission chain, a grille, a driving member and a tensioning mechanism; the driving sprocket and the driven sprocket are both rotatably connected to the frame, the transmission chain is sleeved on the driving sprocket and the driven sprocket, and the grille is installed on the transmission chain; the driving member is used to drive the driving sprocket to rotate; the tensioning mechanism comprises a mounting plate, a connecting rod, an abutment gear and a driving assembly; the mounting plate is fixedly connected to the frame, one end of the connecting rod is rotatably connected to the mounting plate, the abutment gear is rotatably connected to the connecting rod, and the abutment gear is meshed with the transmission chain; the driving assembly is used to drive the connecting rod to rotate.

[0007] By adopting the above technical solution, when the transmission chain becomes loose, under the drive of the driving component, the connecting rod rotates and drives the abutment gear to rotate, so that the abutment gear moves toward the direction close to the transmission chain. The transmission chain restores the tensioned state under the action of the abutment gear, thereby reducing the situation where the transmission chain loosens and falls off.

[0008] Preferably, a sliding block is provided on the connecting rod, and a limiting arc groove for the sliding block to slide is provided on the mounting plate.

[0009] By adopting the above technical solution, the sliding block slides along the limiting arc groove, which helps to improve the stability of the connecting rod when it rotates, and further helps to improve the stability of the position of the abutment gear when the connecting rod rotates. At the same time, the setting of the limiting arc groove limits the rotation angle of the connecting rod to reduce the situation where the abutment gear is completely separated from the transmission chain.

[0010] Preferably, an elastic member is provided in the limiting arc groove, and the elastic member is located between the sliding block and the end of the limiting arc groove, one end of the elastic member is fixedly connected to the sliding block, and the other end of the elastic member is fixedly connected to the inner wall of the limiting arc groove.

[0011] By adopting the above technical solution, when the transmission chain is transmitted under the action of the driving member, the transmission chain engages with the abutment gear and generates downward pressure on the abutment gear. The elastic member is arranged to generate an upward force on the abutment gear, thereby improving the stability of the abutment gear position.

[0012] Preferably, the driving assembly includes a first gear, a second gear, an adjusting rod and a locking member; a rotating shaft is provided on the connecting rod, and the connecting plate is rotatably connected to the mounting plate via the rotating shaft; the first gear is fixedly connected to the connecting plate, and the first gear is concentrically arranged with the rotating shaft; the second gear is rotatably connected to the mounting plate, and the second gear is meshed with the first gear; the adjusting rod is used to drive the second gear to rotate, and the locking member is used to lock the position of the adjusting rod.

[0013] By adopting the above technical solution, the adjusting rod is rotated to drive the second gear to rotate, and then the first gear is driven to rotate, so that the connecting rod is rotated, the abutting gear moves toward the direction close to the transmission chain and the transmission chain is restored to a tensioned state.

[0014] Preferably, a clamping block is provided on the adjusting rod, and a clamping groove matched with the clamping block is provided on the second gear.

[0015] By adopting the above technical solution, the card block is inserted into the card slot to achieve the connection between the adjustment rod and the second gear, and the adjustment rod is rotated to drive the second gear to rotate.

[0016] Preferably, one end of the locking member is threadedly connected to the adjusting rod, and the mounting plate is provided with a plurality of locking grooves for inserting an end of the locking member away from the adjusting rod.

[0017] By adopting the above technical solution, the end of the locking piece is inserted into the locking groove to fix the position of the adjusting rod, thereby helping to improve the stability of the position of the abutting gear.

[0018] Preferably, a plurality of groups of scraping teeth are arranged on the grille.

[0019] By adopting the above technical solution, the setting of the scraper teeth helps to improve the treatment effect of impurities in sewage, which has certain practical significance.

[0020] Preferably, a dirt collecting box is provided on the frame, and a cleaning tooth comb is provided on one side of the dirt collecting box, and the cleaning tooth comb is used to clean attachments on the scraping teeth.

[0021] By adopting the above technical solution, the cleaning tooth comb cleans the attachments attached to the scraping teeth, separates the attachments from the scraping teeth, and the attachments fall into the dirt collecting box, which helps to improve the collection efficiency of the attachments and reduce the pollution caused by the attachments to the environment.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Under the drive of the driving assembly, the connecting rod rotates and drives the abutment gear to rotate, so that the abutment gear moves toward the direction close to the transmission chain. The transmission chain restores the tension state under the action of the abutment gear, thereby reducing the situation where the transmission chain loosens and falls;

[0024] 2. Rotate the adjusting rod to drive the second gear to rotate, and then drive the first gear to rotate, so as to realize the rotation of the connecting rod, and the abutting gear moves toward the direction close to the transmission chain and restores the tension state of the transmission chain;

[0025] 3. The end of the locking piece is inserted into the locking groove to fix the position of the adjusting rod, thereby helping to improve the stability of the position of the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram for reflecting a grille structure with a chain tensioning function in an embodiment.

[0027] Figure 2 Schematic diagram of an explosion used to illustrate the structure of the adjusting rod in the embodiment.

[0028] Description of reference numerals:

[0029] 1. Frame; 2. Driving sprocket; 3. Driven sprocket; 4. Transmission chain; 5. Grille; 6. Driving member; 7. Tensioning mechanism; 71. Mounting plate; 711. Limiting arc groove; 712. Locking groove; 72. Connecting rod; 721. Sliding block; 722. Rotating shaft; 73. Abutting gear; 74. Driving assembly; 741. First gear; 742. Second gear; 7421. Slot; 743. Adjusting rod; 7431. Block; 744. Locking member; 8. Elastic member; 9. Scraping teeth; 10. Dirt collecting box; 11. Cleaning tooth comb; 12. Fixing plate. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-2 This application is described in further detail.

[0031] The present application embodiment discloses a grille structure with a chain tensioning function. Figure 1 A grid structure with a chain tensioning function includes a frame 1, a driving sprocket 2 and a driven sprocket 3. Specifically, the position of the driving sprocket 2 is higher than that of the driven sprocket 3. The driving sprocket 2 and the driven sprocket 3 are both rotatably connected to a fixed plate 12. The driving sprocket 2 and the driven sprocket 3 are both installed on the frame 1 through the fixed plate 12.

[0032] Reference Figure 1 A grille structure with a chain tensioning function also includes a transmission chain 4, a grille 5 and a driving member 6. Specifically, the transmission chain 4 is sleeved on the driving sprocket 2 and the driven sprocket 3, and the grille 5 is installed on the transmission chain 4; the driving member 6 is used to drive the driving sprocket 2 to rotate. Specifically, the driving member 6 can be a motor, and the driving member 6 is installed on the mounting plate 71, and the output end of the driving member 6 is connected to the central axis of the driving sprocket 2 through a coupling.

[0033] Reference Figure 1 and Figure 2 , a plurality of groups of scraping teeth 9 are arranged on the grille 5, specifically, the scraping teeth 9 are evenly distributed along the circumference of the transmission chain 4; a dirt collecting box 10 is arranged on the frame 1, one side of the dirt collecting box 10 is fixedly connected to the frame 1, and a cleaning tooth comb 11 is arranged on the side of the dirt collecting box 10 away from the frame 1, when each group of scraping teeth 9 moves to the cleaning tooth comb 11, the cleaning tooth comb 11 blocks the attachments on the scraping teeth 9 from continuing to move with the scraping teeth 9, and the attachments are separated from the scraping teeth 9 under the obstruction of the cleaning tooth comb 11 and fall into the dirt collecting box 10, thereby cleaning the attachments on the scraping teeth 9.

[0034] Reference Figure 1 and Figure 2 A grille structure with a chain tensioning function also includes a tensioning mechanism 7, which includes a mounting plate 71, a connecting rod 72 and an abutment gear 73; the mounting plate 71 is fixedly connected to the frame 1, specifically, the mounting plate 71 is welded to the frame 1, a rotating shaft 722 is provided on the connecting rod 72, and the connecting rod 72 is rotatably connected to the mounting plate 71 through the rotating shaft 722; the abutment gear 73 is rotatably connected to the connecting rod 72, and the abutment gear 73 is meshed with the transmission chain 4.

[0035] Reference Figure 1 and Figure 2, a sliding block 721 is provided on the connecting rod 72, and a corresponding limiting arc groove 711 is opened on the mounting plate 71 for the sliding block 721 to slide. Specifically, the sliding block 721 is welded to the connecting rod 72; an elastic member 8 is provided in the limiting arc groove 711, and the elastic member 8 is located between the sliding block 721 and the bottom end of the limiting arc groove 711, and one end of the elastic member 8 is fixedly connected to the sliding block 721, and the other end of the elastic member 8 is fixedly connected to the inner wall of the limiting arc groove 711; when the transmission chain 4 is transmitted under the action of the driving member 6, the transmission chain 4 engages with the abutment gear 73, and at the same time generates downward pressure on the abutment gear 73, and the elastic member 8 is set to generate an upward force on the abutment gear 73, thereby improving the stability of the position of the abutment gear 73.

[0036] Reference Figure 1 and Figure 2 The tensioning mechanism 7 also includes a driving assembly 74, and the driving assembly 74 includes a first gear 741 and a second gear 742. The first gear 741 is fixedly connected to the connecting rod 72, and the first gear 741 is concentrically arranged with the rotating shaft 722; the second gear 742 is rotatably connected to the mounting plate 71, and the second gear 742 is meshed with the first gear 741. Specifically, the second gear 742 is rotatably connected to the mounting plate 71 through a bearing, and the number of teeth of the second gear 742 is less than the number of teeth of the first gear 741.

[0037] Reference Figure 1 and Figure 2 The driving assembly 74 also includes an adjusting rod 743, on which four groups of blocks 7431 are arranged. Specifically, the blocks 7431 are arranged along the length direction of the adjusting rod 743, and the four groups of blocks 7431 are evenly distributed along the circumference of the adjusting rod 743; a slot 7421 adapted to the block 7431 is provided on the second gear 742, and the adjusting rod 743 is inserted into the slot 7421, and the adjusting rod 743 is rotated to drive the second gear 742 to rotate.

[0038] Reference Figure 1 and Figure 2 The drive assembly 74 also includes a locking piece 744, one end of which is threadedly connected to the adjusting rod 743. Specifically, a threaded section is provided at one end of the locking piece 744, and the other end of the locking piece 744 is bent toward the side close to the mounting plate 71; the mounting plate 71 is provided with a plurality of locking grooves 712 for inserting the end of the locking piece 744 away from the adjusting rod 743.

[0039] The implementation principle of a grille structure with a chain tensioning function in an embodiment of the present application is as follows: when the transmission chain 4 becomes loose, the staff pulls the locking piece 744 to disengage the end of the locking piece 744 from the locking groove 712, and then rotates the adjusting rod 743 to drive the second gear 742 to rotate. The second gear 742 rotates to drive the first gear 741 to rotate, and the connecting rod 72 rotates accordingly, so that the abutment gear 73 located on the connecting rod 72 rotates in a direction close to the transmission chain 4, and under the action of the abutment gear 73, the transmission chain 4 returns to a tensioned state; finally, the end of the locking piece 744 is inserted into the corresponding locking groove 712 to complete the adjustment of the position of the abutment gear 73.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A grille structure with a chain tensioning function, characterized in that: The invention comprises a frame (1), a driving sprocket (2), a driven sprocket (3), a transmission chain (4), a grille (5), a driving member (6) and a tensioning mechanism (7); the driving sprocket (2) and the driven sprocket (3) are both rotatably connected to the frame (1); the transmission chain (4) is sleeved on the driving sprocket (2) and the driven sprocket (3); the grille (5) is mounted on the transmission chain (4); the driving member (6) is used to drive the driving sprocket (2) to rotate; the tensioning mechanism (7) The mechanism (7) comprises a mounting plate (71), a connecting rod (72), an abutment gear (73) and a driving assembly (74); the mounting plate (71) is fixedly connected to the frame (1); one end of the connecting rod (72) is rotatably connected to the mounting plate (71); the abutment gear (73) is rotatably connected to the connecting rod (72); the abutment gear (73) is meshed with a transmission chain (4); and the driving assembly (74) is used for driving the connecting rod (72) to rotate.

2. The grille structure with chain tensioning function according to claim 1, characterized in that: The connecting rod (72) is provided with a sliding block (721), and the mounting plate (71) is provided with a limiting arc groove (711) for the sliding block (721) to slide.

3. The grille structure with chain tensioning function according to claim 2, characterized in that: An elastic member (8) is provided in the limiting arc groove (711), and the elastic member (8) is located between the sliding block (721) and the end of the limiting arc groove (711), one end of the elastic member (8) is fixedly connected to the sliding block (721), and the other end of the elastic member (8) is fixedly connected to the inner wall of the limiting arc groove (711).

4. The grille structure with chain tensioning function according to claim 2, characterized in that: The driving assembly (74) comprises a first gear (741), a second gear (742), an adjusting rod (743) and a locking member (744); a rotating shaft (722) is provided on the connecting rod (72), and the connecting rod (72) is rotatably connected to the mounting plate (71) via the rotating shaft (722); the first gear (741) is fixedly connected to the connecting rod (72), and the first gear (741) and the rotating shaft (722) are arranged concentrically; the second gear (742) is rotatably connected to the mounting plate (71), and the second gear (742) is meshed with the first gear (741); the adjusting rod (743) is used to drive the second gear (742) to rotate, and the locking member (744) is used to lock the position of the adjusting rod (743).

5. The grille structure with chain tensioning function according to claim 4, characterized in that: The adjusting rod (743) is provided with a clamping block (7431), and the second gear (742) is provided with a clamping groove (7421) matched with the clamping block (7431).

6. The grille structure with chain tensioning function according to claim 5, characterized in that: One end of the locking member (744) is threadedly connected to the adjusting rod (743), and the mounting plate (71) is provided with a plurality of locking grooves (712) for inserting one end of the locking member (744) away from the adjusting rod (743).

7. The grid structure with chain tensioning function according to claim 1, characterized in that: The grille (5) is provided with a plurality of groups of scraping teeth (9).

8. The grille structure with chain tensioning function according to claim 7, characterized in that: A dirt collection box (10) is arranged on the frame (1), and a cleaning tooth comb (11) is arranged on one side of the dirt collection box (10). The cleaning tooth comb (11) is used to clean attachments on the scraping teeth (9).

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