Roller screen device for primary screening of ditch dredging sludge
The detachable sleeve and screen plate structure solves the problem of replacing the entire roller screen after wear, allowing only the damaged parts to be replaced, reducing maintenance costs and improving the equipment's efficiency and screening effect.
Patent Information
- Application Number
- CN202520028770.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-06
AI Technical Summary
In the long-term use of existing roller screens, the screen discs wear down and the entire roller needs to be replaced, resulting in high maintenance costs, waste of resources and production interruptions, especially when processing highly abrasive materials.
The design incorporates a detachable sleeve and screen plate structure, with a fastener enabling synchronous rotation between the sleeve and the main shaft. This allows for the replacement of only the damaged screen plate and sleeve, rather than the entire main shaft. Combined with the polygonal screen plate and rubber semi-ring design, this reduces the likelihood of clogging and jamming.
It simplifies the maintenance process, reduces maintenance costs, improves equipment efficiency and economy, reduces clogging by high-moisture and high-viscosity materials, and enhances screening efficiency and equipment stability.
Smart Images
Figure CN223733210U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of material screening, in particular to a roller screen device for initial screening of trench sludge. BACKGROUND
[0002] The roller screen is also called a sludge-stone separator, which is a high-efficiency screening device. The core of the roller screen is composed of a plurality of parallel arranged rollers. The rollers are staggered with screen discs. The overall structure further includes a motor, a speed reducer, a transmission chain, a gear, a sleeve, a sealing element and other components. The roller is rotated through chain wheels or gears. The rotation direction of the roller is consistent with the flow direction of the material. During the screening process, the material is transported forward with the rotation of the roller. Small particle size materials are separated through the gap between the rollers or the screen discs, while large materials continue to move to the end of the roller and are finally discharged.
[0003] However, in the long-term use of the roller screen, the rollers and the screen discs thereon inevitably collide and wear with the material. In particular, when most of the screen discs lose the screening function due to wear, according to the existing design, the entire roller usually needs to be replaced, although some of the screen discs on the roller are in good working condition. Such unnecessary overall replacement not only increases the maintenance cost of the equipment, but also causes waste of resources, especially when a large amount of trench sludge and other high-wear materials are processed, the problem is particularly prominent. In addition, frequent replacement of the roller may also cause interruption of production, affect the screening efficiency, and further aggravate the limitations of the roller screen in practical application.
[0004] Therefore, in view of the above problems, it is necessary to improve the design of the roller screen to realize independent replacement of the screen disc and the roller, so as to effectively reduce the maintenance cost and improve the use efficiency and economy of the equipment. CONTENT OF THE INVENTION
[0005] In order to improve the problem of easy jamming between the screen disc and the roller, the application provides a roller screen device for initial screening of trench sludge.
[0006] The roller screen device for initial screening of trench sludge provided by the application adopts the following technical scheme:
[0007] The roller screen device for initial screening of trench sludge comprises a rack. A plurality of main shafts are rotationally arranged on the rack. The main shafts are arranged along the length direction of the rack. A driving member is arranged on the rack to drive the rotation of the main shafts. A plurality of sleeves are detachably arranged on the main shafts. The sleeves are arranged along the axis direction of the main shafts. Screen discs are arranged on the sleeves. Fixing members for synchronous rotation are arranged between the sleeves and the main shafts.
[0008] By adopting the technical scheme, the driving member drives the main shaft to rotate, the main shaft drives the sleeve to rotate through the fixing member, the sleeve drives the screen disc to rotate synchronously and push the material, when the screen disc on one of the sleeves is damaged and fails, the worker dismounts the corresponding main shaft and the sleeve at the corresponding position on the main shaft, then replaces the new sleeve and re-installs the main shaft, thereby simplifying the maintenance process and reducing the maintenance cost by replacing only the damaged screen disc and sleeve instead of the whole main shaft.
[0009] Optionally, the fixing member comprises a square shaft tube coaxially arranged on the main shaft, a cross section of the square shaft tube is a polygon, the sleeve is slidably sleeved on the square shaft tube, and end plates are detachably arranged at both ends of the square shaft tube and abut against the sleeve.
[0010] By adopting the technical scheme, the worker sequentially sleeves the plurality of sleeves on the square shaft tube, then installs the end plates to fix the sleeves on the square shaft tube, and the polygonal design of the square shaft tube facilitates the main shaft to drive the sleeves to rotate synchronously through the square shaft tube, thereby reducing the occurrence of the sleeve idling.
[0011] Optionally, the driving member comprises a driving motor arranged on the rack and electrically connected to the control system, the same side of the plurality of main shafts is provided with a chain wheel, and a chain is wound between adjacent two chain wheels, the rack is provided with a speed reducer, an input end of the speed reducer is connected to an output shaft of the driving motor, and an output end of the speed reducer is connected to one of the main shafts.
[0012] By adopting the technical scheme, the control system starts the driving motor, the output shaft of the driving motor transmits the torque to the speed reducer, and the output end of the speed reducer transmits the torque to the main shaft, so that the plurality of main shafts rotate synchronously and in the same direction through the chain wheel and the chain on the main shaft.
[0013] Optionally, the rack is arranged downwardly and obliquely along the conveying direction of the main shaft.
[0014] By adopting the technical scheme, the conveying inclination angle of the roller screen is increased, the large block material in the channel sludge passes through the screen surface more quickly, the residence time of the material on the screen surface is reduced, and the possibility of the wedge-shaped material being embedded into the gap between the screen disc and the adjacent roller to cause the roller screen to be blocked is reduced.
[0015] Optionally, the rack is provided with a maintenance platform.
[0016] By adopting the technical scheme, when the roller screen fails, the maintenance personnel can maintain the roller screen through the maintenance platform without needing to additionally erect a ladder, and the maintenance personnel can maintain more conveniently and safely.
[0017] Optionally, a waterproof cover plate is arranged on the frame and located directly above the driving motor.
[0018] By using the above technical scheme, the situation that the liquid splashed on the screen disc enters the driving motor when the main shaft conveys the material, and the driving motor is damaged, is reduced.
[0019] Optionally, the cross section of the screen disc is polygonal.
[0020] By using the above technical scheme, the screen disc with a polygonal cross section has a certain dispersing effect on the material, which is beneficial to reduce the possibility that the high-humidity and high-viscosity material blocks the gap between the screen disc and the sleeve.
[0021] Optionally, a rubber half ring with a C-shaped cross section is sleeved on the screen disc, a fastening bolt is bolted on the screen disc, a clamping piece is sleeved on the fastening bolt in a sliding manner, and the fastening bolt presses the clamping piece against the rubber half ring.
[0022] By using the above technical scheme, the rubber half ring is made of rubber material, and when the wedge-shaped hard material is stuck in the gap between the screen disc and the sleeve, the rubber half ring will be deformed under the pressure of the adjacent rollers. The wedge-shaped material is embedded in the groove of the deformed rubber half ring and falls below the gap between the screen disc and the sleeve while rotating with the rubber half ring. The rubber half ring restores to its original state under the action of elasticity and continues to push the subsequent material, reducing the possibility of the wedge-shaped hard material being stuck in the gap between the screen disc and the sleeve. When the rubber half ring is damaged, maintenance personnel only need to replace the rubber half ring, without the need to disassemble the sleeve and the main shaft, making the maintenance simpler and more convenient, and further reducing the maintenance cost.
[0023] Optionally, a failure strip is arranged on the rubber half ring.
[0024] By using the above technical scheme, when the failure strip on the rubber half ring is exposed due to long-term wear, it indicates that the maintenance personnel should replace it in time, which is beneficial to reduce the possibility of damage to the screen disc.
[0025] In summary, the present application has at least one of the following beneficial technical effects:
[0026] 1. The driving member drives the main shaft to rotate, the main shaft drives the sleeve to rotate through the fixing member, and the sleeve drives the screen disc to rotate synchronously and push the material. When the screen disc on one of the sleeves is damaged and fails, the worker dismounts the corresponding main shaft and the sleeve at the corresponding position on the main shaft, then replaces the new sleeve and re-installs the main shaft, which is relatively simple and convenient to maintain, without the need to replace the entire main shaft, which is beneficial to reduce the maintenance cost of the roller screen.
[0027] 2. Increase the conveying angle of the roller screen, so that the large pieces in the trench sludge pass through the screen surface faster, reduce the residence time of the material on the screen surface, and further reduce the possibility of wedge-shaped material embedding into the gap between the screen disc and the adjacent roller, causing the roller screen to jam;
[0028] 3. The rubber half-ring is made of rubber material. When the wedge-shaped hard material is stuck in the gap between the screen disc and the sleeve, the rubber half-ring will be deformed under the pressure of the adjacent roller. The wedge-shaped material is embedded in the groove of the deformed rubber half-ring and falls below the gap between the screen disc and the sleeve while rotating with the rubber half-ring. The rubber half-ring restores to its original shape under the action of elasticity, continues to push the subsequent material, reduces the possibility of wedge-shaped hard material sticking in the gap between the screen disc and the sleeve, and when the rubber half-ring is damaged, maintenance personnel only need to replace the rubber half-ring, without disassembling the sleeve and the main shaft, making the maintenance simpler and more convenient, and further reducing the maintenance cost;
[0029] 4. The combination of the polygonal screen disc and the rubber half-ring effectively reduces the blockage of high-moisture and high-viscosity materials, and the elastic deformation characteristics of the rubber half-ring can easily handle the jamming problem of wedge-shaped hard materials, further improving the screening efficiency and the stability of the equipment;
[0030] 5. The design of the maintenance platform and the waterproof cover plate provides a safe and convenient maintenance environment for maintenance personnel, ensuring the long-term stable operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 is the front view of the embodiment of the present application.
[0032] Figure 2 is the top view of the embodiment of the present application.
[0033] Figure 3 is the sectional view of the positional relationship of the screen disc, the sleeve and the rubber half-ring in the embodiment of the present application.
[0034] Explanation of reference signs: 1, rack; 2, main shaft; 3, driving part; 31, driving motor; 32, sprocket; 33, chain; 34, reduction box; 4, sleeve; 5, screen disc; 6, fixing part; 61, square tube; 62, end plate; 7, maintenance platform; 8, waterproof cover plate; 9, rubber half-ring; 10, clamping piece; 11, fastening bolt; 12, failure bar; 13, pulley; 14, belt. DETAILED DESCRIPTION
[0035] The following will be described in detail in combination with the Figures 1-3 The present application will be further described in detail.
[0036] The embodiment of the present application discloses a roller screen device for initial screening of trench sludge.
[0037] Referring toFigure 1 A roller screen device for primary screening of trench sludge comprises a rack 1 arranged obliquely, a plurality of main shafts 2 are rotatably connected to the rack 1 along the oblique direction thereof, the main shafts 2 are arranged along the length direction of the oblique rack 1, and a maintenance platform 7 is welded to the rack 1.
[0038] Referring to Figure 1 , Figure 2 and Figure 3 , a plurality of sleeves 4 are detachably arranged on the main shafts 2, the sleeves 4 are arranged along the axis direction of the main shafts 2, the sleeves 4 are integrally formed with screen discs 5 which are polygonal in cross section, the screen discs 5 are sleeved with rubber half-rings 9 which are C-shaped in cross section, the rubber half-rings 9 are made of natural rubber material, fastening bolts 11 are bolted to the screen discs 5, clamps 10 which are C-shaped in cross section are sleeved on the fastening bolts 11, the fastening bolts 11 press the clamps 10 against the rubber half-rings 9, and failure strips 12 are bonded to the two sides of the rubber half-rings 9.
[0039] When a wedge-shaped hard material is stuck in the gap between the rubber half-ring 9 and the sleeve 4, the rubber half-ring 9 will be deformed under the extrusion force of the adjacent two main shafts 2, the wedge-shaped material will be embedded in the groove of the deformed rubber half-ring 9 and fall into the gap below the rubber half-ring 9 while rotating with the rubber half-ring 9, and then the rubber half-ring 9 will restore to its original shape under the elastic action and continue to push the subsequent material, when the rubber half-ring 9 is worn out to the failure strip 12, the maintenance personnel unscrew the fastening bolts 11, then replace the rubber half-ring 9 and tighten the fastening bolts 11 again, and in this process, the main shafts 2 do not need to be disassembled.
[0040] Referring to Figure 1 , Figure 2 and Figure 3 , a fixing member 6 for synchronous rotation is arranged between the sleeve 4 and the main shaft 2, the fixing member 6 comprises a square shaft tube 61 coaxially welded to the main shaft 2, the square shaft tube 61 is polygonal in cross section, the sleeve 4 is sleeved on the square shaft tube 61, end plates 62 are bolted to both ends of the square shaft tube 61, the end plates 62 are sleeved on the main shaft 2, and the end plates 62 are used for abutting against the sleeve 4.
[0041] When the rubber half-ring 9 is damaged and causes the screen disc 5 to be damaged, the maintenance personnel disassemble the main shaft 2, then disassemble the end plates 62 on the square shaft tube 61, replace the sleeve 4 corresponding to the damaged screen disc 5, and finally reinstall the main shaft 2, and in this process, the maintenance personnel do not need to replace the entire main shaft 2, thereby reducing the maintenance cost.
[0042] Referring to Figure 1 , Figure 2 and Figure 3The rack 1 is provided with a driving member 3 for driving the rotation of the main shaft 2, the driving member 3 comprises a driving motor 31 bolted to the rack 1 and electrically connected to a control system, a waterproof cover plate 8 is bolted to the rack 1 and located directly above the driving motor 31, and a plurality of chain wheels 32 are connected to the same side of the main shaft 2 through a flat key.
[0043] With reference to Figure 1 , Figure 2 and Figure 3 , a chain 33 is wound between the adjacent two chain wheels 32, a speed reducer 34 is bolted to the rack 1, a belt pulley 13 is fixedly connected to the output shaft of the driving motor 31 and the input end of the speed reducer 34, the belt pulley 13 on the speed reducer 34 is wound with a belt 14 between the belt pulley 13 on the driving motor 31, and the output end of the speed reducer 34 is connected to one of the main shafts 2.
[0044] The worker starts the driving motor 31 through the control system, the output shaft of the driving motor 31 transmits the torque to the speed reducer 34 through the belt pulley 13 and the belt 14, the output end of the speed reducer 34 transmits the torque to the main shaft 2, and then the adjacent two main shafts 2 rotate synchronously and in the same direction through the chain wheels 32 and the chain 33, so as to realize the pushing effect on the materials.
[0045] The implementation principle of the roller screen device for initial screening of trench sludge is as follows: when the wedge-shaped hard material is stuck in the gap between the rubber half ring 9 and the sleeve 4, the rubber half ring 9 will be deformed under the extrusion force of the adjacent two main shafts 2, the wedge-shaped material will be embedded in the groove of the deformed rubber half ring 9 and fall into the gap below the rubber half ring 9 by rotating with the rubber half ring 9, and then the rubber half ring 9 restores to the original state under the elastic action and continues to push the subsequent materials, when the rubber half ring 9 is worn out to the failure strip 12, the maintenance personnel unscrew the fastening bolt 11, replace the rubber half ring 9 and tighten the fastening bolt 11 again, and in this process, the main shaft 2 does not need to be disassembled.
[0046] When the rubber half ring 9 is damaged and causes the screen disc 5 to be damaged, the maintenance personnel disassemble the main shaft 2, then disassemble the end plate 62 on the square shaft tube 61, replace the sleeve 4 corresponding to the damaged screen disc 5, and finally reinstall the main shaft 2, and in this process, the maintenance personnel do not need to replace the entire main shaft 2, so as to reduce the maintenance cost.
[0047] The worker starts the driving motor 31 through the control system, the output shaft of the driving motor 31 transmits the torque to the speed reducer 34 through the belt pulley 13 and the belt 14, the output end of the speed reducer 34 transmits the torque to the main shaft 2, and then the adjacent two main shafts 2 rotate synchronously and in the same direction through the chain wheels 32 and the chain 33, so as to realize the pushing effect on the materials.
[0048] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.
Claims
1. A roller screen apparatus for primary screening of trench sludge, characterized by: The utility model provides a kind of screening machine, including rack (1), a plurality of main shafts (2) are rotatably arranged on the rack (1), a plurality of the main shafts (2) are arranged along the length direction of the rack (1), the rack (1) is provided with driving member (3) for driving the rotation of the main shaft (2), a plurality of sleeve (4) are detachably arranged on the main shaft (2), a plurality of the sleeve (4) are arranged along the axis direction of the main shaft (2), the sleeve (4) is provided with sieve tray (5), the sleeve (4) and the main shaft (2) between are provided with fixed part (6) for synchronous rotation.
2. A roller screen apparatus for primary screening of trench sludge according to claim 1, wherein: The fixed part (6) includes a square shaft tube (61) coaxially arranged on the main shaft (2), the cross section of the square shaft tube (61) is polygonal, the sleeve (4) is slidably sleeved on the square shaft tube (61), and the both ends of the square shaft tube (61) are detachably provided with end plates (62), and the end plates (62) abut on the sleeve (4).
3. A roller screen apparatus for primary screening of trench sludge according to claim 2, wherein: The driving member (3) includes a driving motor (31) arranged on the rack (1) and electrically connected to a control system, a chain wheel (32) is arranged on the same side of each of the plurality of main shafts (2), a chain (33) is wound between adjacent two chain wheels (32), a reduction box (34) is arranged on the rack (1), an input end of the reduction box (34) is connected to an output shaft of the driving motor (31), and an output end of the reduction box (34) is connected to one of the main shafts (2).
4. A roller screen apparatus for primary screening of trench sludge according to claim 1, wherein: The rack (1) is arranged downwardly inclined along the conveying direction of the main shaft (2).
5. A roller screen apparatus for primary screening of trench sludge according to claim 4, wherein: A maintenance platform (7) is arranged on the rack (1).
6. A roller screen apparatus for primary screening of trench sludge according to claim 3, wherein: A waterproof cover plate (8) is arranged on the rack (1) directly above the driving motor (31).
7. A roller screen apparatus for primary screening of trench sludge according to claim 1, wherein: The cross section of the sieve tray (5) is polygonal.
8. A roller screen apparatus for primary screening of trench sludge according to claim 7, wherein: A rubber half ring (9) with a C-shaped cross section is sleeved on the sieve tray (5), a fastening bolt (11) is bolted on the sieve tray (5), a clamping piece (10) is slidably sleeved on the fastening bolt (11), and the fastening bolt (11) presses the clamping piece (10) tightly on the rubber half ring (9).
9. A roller screen apparatus for primary screening of trench sludge according to claim 8, wherein: A failure strip (12) is arranged on the rubber half ring (9).