Mesh belt type mechanical grid

Abstract

The utility model discloses a mesh belt type mechanical grating, which belongs to the technical field of environmental protection equipment and structurally comprises a frame, a rotary chain, a transmission mechanism, a mesh belt and a rake tooth row. The frame comprises a rack, side plates and a supporting plate, the side plates are obliquely arranged on the left side and the right side, the rack is horizontally arranged, and the lower side of the front portion of the rack is connected with the upper portions of the side plates; the transmission mechanism comprises a main shaft, an electric speed reducer and a bottom shaft, the mesh belt is used for replacing a tooth rake, the mesh belt is an automatic large-scale production product, the working efficiency is high, manual operation is hardly needed in the production process, due to the fact that the mesh belt type mechanical grid does not use the tooth rake, the manufacturing process becomes simple, and the production cost is low. And the labor cost is reduced, so that the manufacturing cost is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mechanical grid belongs to environmental protection equipment technical field, especially a kind of mechanical grid of using mesh belt technical field. BACKGROUND

[0002] Rake type mechanical grid, such as Figure 6 , Figure 7 , Figure 9 As shown: it is commonly used sewage treatment equipment, mainly by frame, rotary chain, transmission mechanism, rake and so on, frame includes rack, side plate and support plate, side plate is arranged in left and right two sides, support plate is arranged in the middle of two side plates, both ends are fixedly connected with side plate, side plate is arranged obliquely, rack is arranged horizontally, the upper part of side plate is connected with the lower side of the front part of rack;Transmission mechanism includes main shaft, electric speed reducer and bottom shaft, bottom shaft is arranged in the lower part of side plate, two bottom sprockets are arranged on the both sides of bottom shaft, main shaft is arranged in the rear part of rack, one side is provided with one driving sprocket, two main sprockets are arranged on the inner side of rack, electric speed reducer is arranged on the top of rack, the driving sprocket on electric speed reducer is connected with the driving sprocket on main shaft through driving chain, upper slide is arranged in the lower part of rotary chain in front part, lower slide is arranged in the lower part of rotary chain in rear part;Rotary chain is arranged between main sprocket and bottom sprocket, outer side baffle is arranged on the outer side of side plate;Lower baffle is arranged on the lower side of front part of side plate;Chain cover plate is arranged on the front side of rotary chain in front part.

[0003] Frame and rotary chain, etc., play the role of fixing and transmitting the movement of rake, drive rake to carry out screening and filtering operation in sewage.

[0004] The function of transmission mechanism is to transmit the power provided by electric speed reducer to carrier, so that driving chain drives rake to move according to the set speed and direction.

[0005] Rake, as shown in Figure 8 : it is the key component for capturing solid substances in sewage, which is made of corrosion-resistant materials such as stainless steel, nylon or ABS engineering plastic, and is arranged on the carrier at a certain interval, and its shape and size are designed according to different use requirements.

[0006] Rack and shroud: rack is welded by stainless steel or carbon steel material, forming a rigid support structure, which is used for installing and fixing other components, and shroud can prevent sewage from splashing out and protect equipment components from external environment.

[0007] Main sprocket and bottom sprocket: used for guiding the movement direction of rake chain, so that it moves in a predetermined trajectory, ensuring that rake can accurately insert into the gap of grid for decontamination operation and return smoothly on the way back.

[0008] Working principle

[0009] When sewage flows through the tooth rake type mechanical grid, the tooth rake intercepts solid particles in the sewage, so that it remains on the grid. Then, the carrier is driven by the transmission mechanism to transport the tooth rake with intercepted solid impurities to the outlet direction. During the operation of the tooth rake, the cleaning mechanism continuously cleans the solid matter on the tooth rake, so that it falls into the residue tank or the conveying belt and is transported away for treatment, thereby achieving the purpose of pollution removal.

[0010] Application scope

[0011] Urban sewage treatment: used for pretreatment of water inlet of urban sewage treatment plant, instead of primary sedimentation tank, intercepts floating matter, suspended matter and the like in sewage, and reduces the load of subsequent treatment process.

[0012] Industrial wastewater treatment: used for removal of solid matter in papermaking, slaughter, leather, sugar making, brewing and other industrial wastewater treatment, and also used for recycling of useful matter such as fiber and residue.

[0013] Waterworks and pump station: used for water inlet of waterworks and rainwater pump station and the like, intercepts sundries in water, and protects normal operation of water pump and subsequent treatment equipment.

[0014] Disadvantages of the prior art tooth rake type mechanical grid: long working hours of manual operation in the manufacturing process, which increases the cost of the equipment

[0015] The manufacturing process of the tooth rake type mechanical grid mainly includes welding of the frame and installation of the tooth rake. Manual operation is required in the installation process of the tooth rake, and the working efficiency is low. Taking the installation of a tooth rake type mechanical grid with a width of 1 meter and a height of 7 meters as an example, two skilled workers need 20 hours to complete the installation, which is the largest part of the labor cost in the manufacturing process. Due to the inability to realize automation, long working hours of manual operation in the manufacturing process increases the cost of the equipment. Summary of the application

[0016] The utility model discloses to solve the deficiency of prior art, provide a mesh belt type mechanical grid, and the equipment can improve the working efficiency of manufacturing process, reduce the working hours, reduce the manufacturing cost.

[0017] The technical scheme for solving the above problems of the utility model is: a mesh belt type mechanical grid, which comprises a frame, a rotary chain, a transmission mechanism, a mesh belt and a harrow row; the frame comprises a rack, side plates and support plates, the side plates are arranged on the left and right sides, the support plates are arranged in the middle of the two side plates and are fixedly connected with the side plates at both ends, the side plates are arranged obliquely, the rack is arranged horizontally, and the lower side of the front part of the rack is connected with the upper part of the side plate; the transmission mechanism comprises a main shaft, an electric speed reducer and a bottom shaft, the bottom shaft is arranged at the lower part of the side plate, both ends of the bottom shaft are connected with the side plate through bearings, two bottom sprockets are arranged on the left and right sides of the bottom shaft, the main shaft is arranged at the rear part of the rack and is connected with the rack through bearings at both sides, one driving sprocket is arranged outside one side bearing, two main sprockets are arranged on the inner side of the rack, the electric speed reducer is arranged at the top of the rack, one driving sprocket is arranged on the shaft of the electric speed reducer, the driving sprocket on the electric speed reducer is connected with the driving sprocket on the main shaft through a driving chain, two upper slides are arranged and are connected with the side plate and the rack, are arranged at the lower part of the rotary chain arranged at the front part, two lower slides are arranged and are connected with the side plate and the rack, are arranged at the lower part of the rotary chain arranged at the rear part; the rotary chain comprises two chains, is arranged between the main sprocket and the bottom sprocket, comprises chain links and chain shaft rods, two through holes are arranged on the chain links, the chain shaft rods pass through the through holes on the chain links and are fixed through a clamp, the mesh belt is arranged between the main sprocket and the bottom sprocket, the chain shaft rods pass through the apertures of the mesh belt, the mesh belt is arranged in the middle, the rotary chain is arranged on the left and right sides of the mesh belt, and an inner side water baffle is arranged between the mesh belt and the rotary chain; the harrow row comprises harrow teeth, a horizontal plate and shaft pipes, the harrow teeth are arranged at the front part of the horizontal plate, at least two shaft pipes are arranged at the rear part of the horizontal plate, and the harrow row is connected with the chain shaft rods through the chain shaft rods passing through the shaft pipes and the chain shaft rods; two outer side water baffles are arranged outside the side plates; one lower water baffle is arranged at the lower side of the front part of the side plate; a chain cover plate is arranged between the side plate and the inner side water baffle at the upper part of the lower water baffle, and the upper end of the chain cover plate is connected with the top of the rack.

[0018] Its beneficial effects are:

[0019] The mesh belt type mechanical grid of the utility model uses a mesh belt to replace a harrow, the mesh belt is a product of automatic and large-scale production, has high working efficiency and needs little manual operation in the production process, the mesh belt type mechanical grid does not use a harrow, the manufacturing process is simple, manual cost is reduced, and manufacturing cost is greatly reduced. DRAWINGS

[0020] The mesh belt type mechanical grid of the utility model is further described in combination with the drawings and the embodiments.

[0021] Figure 1 is a side view of the mesh belt type mechanical grid of the utility model, wherein the side plate, the rotary chain and the rack part of the front part are removed.

[0022] Figure 2It is the front view of the net belt type mechanical grille of the utility model, the harrow tooth row and the net belt part are removed in the drawing, the chain cover plate part of the left side and the right side upper part is removed.

[0023] Figure 3 It is the schematic view of the rotary chain, the harrow tooth row, the net belt and the chain shaft rod connection state of the net belt type mechanical grille of the utility model.

[0024] Figure 4 It is the front view of the harrow tooth row of the net belt type mechanical grille of the utility model.

[0025] Figure 5 It is the side view of the harrow tooth row of the net belt type mechanical grille of the utility model.

[0026] Figure 6 It is the side view of the prior art tooth harrow type mechanical grille, the side plate, the rotary chain and the frame part are removed in the drawing.

[0027] Figure 7 It is the front view of the prior art tooth harrow type mechanical grille, the tooth harrow part is removed in the drawing, the chain cover plate part is removed.

[0028] Figure 8 It is the schematic view of the tooth harrow of the prior art tooth harrow type mechanical grille.

[0029] Figure 9 It is the schematic view of the tooth harrow, the rotary chain and the chain shaft rod connection state of the prior art tooth harrow type mechanical grille.

[0030] 1 is the side plate, 2 is the rotary chain, 3 is the net belt, 4 is the harrow tooth row, 5 is the support plate, 6 is the chain cover plate, 7 is the frame, 8 is the main shaft, 9 is the electric speed reducer, 10 is the upper slide, 11 is the bottom shaft, 12 is the bearing, 13 is the bottom chain wheel, 14 is the driving chain wheel, 15 is the shaft tube, 16 is the main chain wheel, 17 is the driving chain, 18 is the lower slide, 19 is the chain piece, 20 is the chain shaft rod, 21 is the lower water baffle, 22 is the outer water baffle, 23 is the tooth harrow, 24 is the inner water baffle, 25 is the harrow tooth, 26 is the cross plate. DETAILED DESCRIPTION

[0031] The principle and operation process of the net belt type mechanical grille of the utility model are described in detail below:

[0032] A net belt type mechanical grille, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The structure includes a frame, a rotary chain, a transmission mechanism, a mesh belt and a row of rake teeth; the frame includes a rack, side plates and support plates, the side plates are arranged on the left and right sides, the support plates are arranged in the middle of the two side plates and are fixedly connected with the side plates at both ends, the side plates are arranged obliquely, the rack is arranged horizontally, and the lower side of the front part of the rack is connected with the upper part of the side plate; the transmission mechanism includes a main shaft, an electric speed reducer and a bottom shaft, the bottom shaft is arranged on the lower part of the side plate and is connected with the side plate through bearings at both ends, two bottom sprockets are arranged on the left and right sides of the bottom shaft, the main shaft is arranged on the rear part of the rack and is connected with the rack through bearings at both sides, an outer part of one side bearing is provided with a driving sprocket, two main sprockets are arranged on the inner side of the rack, the electric speed reducer is arranged on the top of the rack, a driving sprocket is arranged on the shaft of the electric speed reducer, and the driving sprocket on the electric speed reducer is connected with the driving sprocket on the main shaft through a driving chain, two upper slides are arranged and connected with the side plate and the rack, are arranged on the lower part of the rotary chain arranged on the front part and are arranged on the lower part of the rotary chain arranged on the rear part; the rotary chain is arranged between the main sprocket and the bottom sprocket, includes chain links and chain shaft rods, two through holes are arranged on the chain link, the chain shaft rod passes through the through holes on the chain link and is fixed through a clamp, the mesh belt is arranged between the main sprocket and the bottom sprocket, the chain shaft rod passes through the apertures of the mesh belt, the mesh belt is arranged in the middle, the rotary chain is arranged on the left and right sides of the mesh belt, and an inner side water baffle is arranged between the mesh belt and the rotary chain; the row of rake teeth includes rake teeth, cross plates and shaft pipes, the rake teeth are arranged on the front part of the cross plate, at least two shaft pipes are arranged on the rear part of the cross plate, and the row of rake teeth is connected with the chain shaft rod through the shaft pipes and the chain shaft rod; two outer side water baffles are arranged on the outer side of the side plate; one lower water baffle is arranged on the lower side of the front part of the side plate; a chain cover plate is arranged between the upper part of the lower water baffle and the inner side water baffle, and the upper end of the chain cover plate is connected with the top of the rack.

[0033] The mesh belt mentioned in the utility model is a mature industrial product, and there are various types of mesh belts.

[0034] According to the material classification

[0035] Metal material: carbon steel mesh belt has low cost, certain strength and wear resistance, and is suitable for environments with low corrosion resistance requirements; stainless steel mesh belt, such as 304 and 316, has good corrosion resistance, high temperature resistance and sanitary performance, and is widely used in food, chemical industry, electronics and other industries.

[0036] Plastic material: common mesh belts made of polypropylene and polyethylene have the characteristics of light weight, corrosion resistance and good flexibility, and are suitable for conveying some light objects, such as food and medicine packaging.

[0037] Fiber material: such as fiberglass mesh belt has the characteristics of high temperature resistance, good insulation performance, high strength, good flexibility, etc., suitable for high temperature conveying or baking process in electronic, glass and other industries; Kevlar fiberglass mesh belt combines the advantages of Kevlar fiber and fiberglass, with higher strength and better wear resistance.

[0038] Classification by shape and structure

[0039] Crankshaft type mesh belt: it has various advantages of metal wire woven mesh belt, with deep bending string, which can reduce the deformation and extension of the mesh belt.

[0040] Straight shaft type mesh belt: it is connected by left and right alternating mesh strips through straight string, with dense mesh and uniform spacing, stable running, suitable for carrying small and heavy objects.

[0041] Type B mesh belt: also known as trapezoidal mesh belt or straight mesh, it is usually a gear transmission mesh belt, with good air permeability, uniform tension, flexible and stable rotation, high temperature resistance, pressure and corrosion resistance.

[0042] Herringbone mesh belt: it is connected by left and right alternating mesh strips through four straight strings, with precise weaving, fine mesh and flexible operation, suitable for conveying small and heavy objects.

[0043] Chain rod type mesh belt: it uses chain transmission, suitable for large and heavy conveying, with stable movement, large force, good protection of mesh surface, but the price is higher.

[0044] U-shaped chain type mesh belt: it can be used as a spiral mesh belt, with good turning performance, 180 degree turning, stable running, flat mesh surface, strong carrying capacity, good ventilation and air permeability, clean and non-toxic, easy to clean, convenient to maintain and disassemble.

[0045] Examples

[0046] The production process of the mesh belt type mechanical grille of the utility model: the mesh belt type mechanical grille of the utility model uses mesh belt to replace tooth harrow, the mesh belt is a product of automatic and large-scale production, has high work efficiency, rarely needs manual operation in the production process, the tooth row can also be produced in batches through laser cutting machine by designing drawing in advance, and can be bent to be used, for example, the mesh belt, the rotary chain, the inner side baffle and the tooth row of one mesh belt type mechanical grille with a width of 1 meter and a height of 7 meters are installed, the worker successively passes the chain shaft through the shaft pipe of the chain piece, the baffle, the tooth row, the mesh belt, the baffle on the other side and the chain piece on the other side, then installs the clamp on the two sides of the chain piece, repeats the above operation, when the mesh belt, the rotary chain and the tooth row are installed to the set length, is installed between the side plate and the main shaft and the bottom shaft in the rack, then connects the head and the tail of the mesh belt, the above installation operation needs two skilled workers to complete in half a day, since the mesh belt type mechanical grille of the utility model does not use tooth harrow, the manufacturing process becomes simple, the labor cost is reduced, the cost of the mesh belt is much lower than that of the tooth harrow, generally only one half to one fifth of the material used in the tooth harrow with the same area and the same aperture, so that the manufacturing cost is greatly reduced.

[0047] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the technical principle of the utility model, a number of improvements and refinements can be made, these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A mesh belt type mechanical grid, which is an improvement of a mechanical grid, mainly composed of a frame, a rotary chain, a transmission mechanism and a mesh belt, characterized in that, Its structure includes frame, rotary chain, transmission mechanism, mesh belt and rake row; the frame includes rack, side plate and support plate, the side plate is arranged on the left and right sides, the support plate is arranged between the two side plates, and the two ends are fixedly connected with the side plates, the side plate is arranged obliquely, the rack is arranged horizontally, and the lower side of the front part of the rack is connected with the upper part of the side plate; the transmission mechanism includes a main shaft, an electric speed reducer and a bottom shaft, the bottom shaft is arranged at the lower part of the side plate, and the two ends are connected with the side plate through bearings, two bottom sprockets are arranged on the two sides of the bottom shaft, the main shaft is arranged at the rear part of the rack, and the two sides are connected with the rack through bearings; the outer part of one side bearing is provided with a driving sprocket, two main sprockets are arranged on the inner side of the main shaft, the electric speed reducer is arranged at the top of the rack, a driving sprocket is arranged on the shaft of the electric speed reducer, and the driving sprocket on the electric speed reducer is connected with the driving sprocket on the main shaft through a driving chain, two upper slides are connected with the side plate and the rack, arranged at the lower part of the rotary chain in the front part, and two lower slides are connected with the side plate and the rack, arranged at the lower part of the rotary chain in the rear part; the rotary chain is arranged between the main sprocket and the bottom sprocket, and includes chain sheet and chain shaft rod, two through holes are arranged on the chain sheet, the chain shaft rod passes through the through holes on the chain sheet and is fixed through a clamp, the mesh belt is arranged between the main sprocket and the bottom sprocket, the chain shaft rod passes through the aperture of the mesh belt, the mesh belt is arranged in the middle part, the rotary chain is arranged on the two sides of the mesh belt, and an inner side water baffle is arranged between the mesh belt and the rotary chain; the rake row includes rake, horizontal plate and shaft pipe, the rake is arranged at the front part of the horizontal plate, the shaft pipe is at least two, arranged at the rear part of the horizontal plate, and the rake row is connected with the chain shaft rod through the shaft pipe and the chain shaft rod; the outer side water baffle is arranged on the outer side of the side plate; the lower water baffle is arranged on the lower side of the front part of the side plate; the chain cover plate is arranged between the upper part of the lower water baffle and the inner side water baffle, and the upper end of the chain cover plate is connected with the top of the rack.

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