A transversely driven lapped screw dewaterer
The horizontally driven stacked spiral design solves the problems of inconvenient installation, easy corrosion, and unbalanced drive of the eccentric mechanism, enabling convenient maintenance, stable operation, and efficient transmission of the equipment, thus improving the overall performance of the dewatering machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AMCON FUJIAN ENVIRONMENT PROTECTION EQUIP CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-24
AI Technical Summary
The existing dewatering machine's eccentric mechanism is inconvenient to install, prone to corrosion, has uneven driving force, and an unstable transmission structure, which affects the equipment's maintenance efficiency and operational stability.
It adopts a horizontally driven stacked spiral design, with eccentric mechanisms distributed on the left and right sides of the connecting plate. The drive rod and eccentric mechanism are symmetrically arranged, the gears are arranged horizontally and located at the mud inlet end, driven by an independent motor, and the connecting plate series hole has an ear-shaped design facing downwards.
It improves the ease of maintenance and corrosion resistance of the eccentric mechanism, ensures balanced driving force, enhances the operational stability of the equipment and the robustness of the transmission structure, reduces sludge retention, and improves the overall performance of the equipment.
Smart Images

Figure CN224548266U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of dewatering machines, specifically referring to a horizontally driven stacked spiral dewatering machine. Background Technology
[0002] Chinese invention patent 202510101725.8 discloses a self-cleaning dehydrator, which uses a segmented filter unit and double moving ring plates to achieve self-cleaning. However, this solution has the following drawbacks:
[0003] 1. In one embodiment, two eccentric mechanisms are provided on the same transmission moving ring, distributed in a "left-up, right-down" configuration. The lower eccentric mechanism is concealed, making installation and observation of its operation inconvenient, and it cannot be directly disassembled for maintenance, making operation extremely cumbersome. Furthermore, the lower eccentric mechanism is easily exposed to corrosive substances such as sewage and sludge, and is prone to corrosion and damage over long-term use, affecting the filtration performance of the dewatering machine's filter unit. In this design, the gear set is arranged obliquely, resulting in an unbalanced transmission structure, poor stability, and difficulty in achieving regular lubrication of the gears, affecting their service life and transmission efficiency.
[0004] 2. In another embodiment, a design with all eccentric mechanisms positioned at the top causes the driving force to concentrate in the upper part of the equipment, resulting in uneven and unstable driving force, which in turn affects the smoothness of the dewatering machine's operation and its service life. Furthermore, the vertical arrangement of the gear sets makes it difficult to achieve regular lubrication of the gears, affecting their service life and transmission efficiency.
[0005] 3. If some of the connecting holes have their ears facing upwards, sludge may accumulate on the local surface of the filter chamber. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide a transversely driven stacked spiral dewatering machine that is easy to observe and maintain and has a stable structure.
[0007] This utility model is implemented as follows:
[0008] A horizontally driven stacked spiral dewatering machine includes: a filter chamber supported by multiple support plates, wherein a spiral shaft is provided in the filter chamber, and the number of spiral shafts is two, which are arranged horizontally side by side in the filter chamber;
[0009] The filter chamber includes at least one set of movable components that perform reciprocating circular motion, and the driving mechanism of the movable components includes:
[0010] The drive rod has two, and each drive rod is simultaneously rotatably connected to and passes through all of the support plates;
[0011] A drive source, mounted on the support plate, drives one of the drive rods to rotate;
[0012] A gear transmission mechanism connects to and drives the drive rod to rotate at the same speed and in the same direction;
[0013] And a linkage group, corresponding one-to-one with the movable component. Each linkage group includes two or more linkage plates, which are connected to the corresponding movable component. At the same time, the linkage plates are connected to two drive rods through an eccentric mechanism, so that when the drive rods rotate, they drive the linkage plates to perform reciprocating circular motion and drive all the movable ring plates to move in tandem. The eccentric direction and eccentric distance of the eccentric mechanism of the same linkage group relative to the drive rod are the same.
[0014] The two drive rods are respectively located on the left and right sides of the connecting plate. The moving components are connected as one unit by the eccentric mechanism located on the left and right sides of the connecting plate to perform reciprocating circular motion.
[0015] Furthermore, the filter cavity includes two sets of movable components that perform reciprocating circular motion.
[0016] Furthermore, the connecting piece has a flat structure, and the connecting holes on both sides for connecting the drive rod are arranged close to the horizontal direction.
[0017] Furthermore, the ear angles of all the aforementioned serial ports are designed to face downwards.
[0018] Furthermore, the gearbox of the gear transmission mechanism is located at the mud inlet end of the filter chamber and is driven by an independent motor, and the multiple gears of the gear transmission mechanism are arranged laterally.
[0019] The advantages of this utility model are:
[0020] I. Advantages of eccentric layout:
[0021] 1. Improved ease of maintenance:
[0022] Two drive rods are respectively located on the left and right sides of the connecting plate, and the eccentric mechanisms are also correspondingly distributed on the left and right sides of the connecting plate. This layout places all eccentric mechanisms in positions that are easy to install, observe, and maintain. Maintenance personnel do not need to spend a lot of time and effort disassembling numerous components to inspect the eccentric mechanisms below, which greatly improves maintenance efficiency and reduces maintenance costs.
[0023] 2. Enhanced corrosion resistance:
[0024] In existing designs, the lower eccentric mechanism is easily exposed to corrosive substances such as sewage and sludge, making it prone to damage. This invention, by placing the eccentric mechanism on both sides of the connecting plate, reduces the direct contact with corrosive substances, lowers the risk of corrosion of the eccentric mechanism, extends the service life of the equipment, and improves the reliability of equipment operation.
[0025] II. Advantages in driving stability:
[0026] 1. Balanced distribution of driving force:
[0027] Existing technologies, which place all eccentric mechanisms at the top, concentrate the driving force at the upper part of the equipment, resulting in uneven and unstable driving force. This invention, through the linkage of driving rods on both sides and corresponding eccentric mechanisms with the moving components, transmits the driving force symmetrically from both sides laterally. This design ensures that the driving force is uniform across all parts when the moving components perform circular motion, effectively avoiding equipment shaking and vibration caused by uneven driving force, and improving the stability of the dewatering machine's operation.
[0028] 2. Improved operational stability:
[0029] The gear transmission mechanism in this invention features a parallel design that drives the drive rods to rotate at the same speed and in the same direction, further ensuring the stability and consistency of the driving force. During equipment operation, the stable driving force enables the dewatering machine to operate continuously and efficiently, reducing the adverse effects of driving force fluctuations on the dewatering effect and equipment lifespan, and improving the overall operational stability of the equipment.
[0030] III. Advantages of the transmission structure:
[0031] 1. Balanced and stable structure:
[0032] The gears are arranged laterally, with the gearbox located at the mud inlet end, and are driven by an independent motor. This layout makes the force on the transmission system more even, the structure more stable, reduces the probability of failures caused by transmission structure problems during operation, and improves the overall structural strength and reliability of the equipment.
[0033] 2. Convenient lubrication and maintenance:
[0034] Horizontally arranged gears are easier to lubricate than diagonally arranged gears. Maintenance personnel can more easily lubricate the gears, ensuring they operate under good lubrication conditions, reducing gear wear, extending gear life, improving transmission efficiency, and ultimately enhancing the overall performance of the dewatering machine.
[0035] Fourth, the connecting holes adopt an ear-shaped design, which can reduce the retention of sludge on the surface of the filter chamber; at the same time, since there is no filtrate obstruction at the bottom, the filtration performance of the filter chamber can remain stable. Attached Figure Description
[0036] The present invention will now be further described with reference to the accompanying drawings and embodiments.
[0037] Figure 1 This is a top-view three-dimensional structural diagram of the present invention.
[0038] Figure 2 yes Figure 1 The main view.
[0039] Figure 3 yes Figure 2 Top view.
[0040] Figure 4 This is a schematic diagram of the active component driving mechanism in this utility model.
[0041] Figure 5 This is an exploded view of the assembly structure of the linkage plate and the eccentric mechanism on both sides in this utility model.
[0042] Figure 6 This is a schematic diagram of the linkage plate structure in the first section of the filter cavity in this utility model.
[0043] Figure 7 This is a schematic diagram of a set of movable plates in the first section of the filter cavity in this utility model.
[0044] Figure 8 This is a schematic diagram of another set of movable plates in the first section of the filter cavity in this utility model.
[0045] Figure 9 This is a schematic diagram of the linkage plate structure in the second section of the filter cavity in this utility model.
[0046] Figure 10 This is a schematic diagram of a set of movable plates in the second section of the filter cavity in this utility model.
[0047] Figure 11 This is a schematic diagram of another set of movable plates in the second section of the filter cavity in this utility model. Attached Figure Description
[0049] 1-Support plate, 2-Filter chamber, 3-Drive rod, 4-Drive source, 5-Gear transmission mechanism, 6-Eccentric mechanism, A-Connecting plate, A1-Moving plate, A2-Moving plate, B-Connecting plate, B1-Moving plate, B2-Moving plate, 7-Snap ring, 8-Eccentric baffle screw, 9-Oil seal, 10-External hexagonal screw, 11-Bearing housing cover plate, 12-O-ring, 13-Washer, 14-Mechanical screw, 15-Eccentric wheel, 16-Bearing, 17-Bearing housing, 18-Double-layer self-locking washer, 19-Self-locking nut. Detailed Implementation
[0050] Please see Figures 1 to 11 As shown, a transversely driven stacked spiral dewatering machine includes: two filter chambers 2 supported by three support plates 1, and two parallel spiral shafts are arranged inside the filter chambers 2.
[0051] Each filter chamber 2 contains two sets of movable components that perform reciprocating circular motion. The drive mechanism for the movable components includes:
[0052] There are two drive rods 3, each of which is simultaneously rotatably connected to and passes through all the support plates 1;
[0053] The drive source 4 is mounted on the support plate 1 and drives one of the drive rods 3 to rotate;
[0054] Gear transmission mechanism 5 connects to and drives drive rod 3 to rotate at the same speed and in the same direction;
[0055] And the linkage group, which corresponds one-to-one with the movable component. Each linkage group includes two or more linkage plates, which are connected to the corresponding movable component. At the same time, the linkage plates are connected to two drive rods 3 through the eccentric mechanism 6. When the drive rod 3 rotates, it drives the linkage plates to perform reciprocating circular motion and drives all the movable ring plates to move in tandem. The eccentric direction and eccentric distance of the eccentric mechanism 6 relative to the drive rod 3 in the same linkage group are the same.
[0056] Two drive rods 3 are respectively located on the left and right sides of the connecting plate. The moving components are connected as one unit by the eccentric mechanism 6 located on the left and right sides of the connecting plate to perform reciprocating circular motion.
[0057] The linkage plate has a flat structure, and the connecting holes on both sides for connecting the drive rod 3 are all set in a direction close to the horizontal line; the ear angle of all the connecting holes is designed to face downward.
[0058] The gearbox of the gear transmission mechanism 5 is located at the mud inlet end of the filter chamber 2 and is driven by an independent motor (drive source 4). The multiple gears of the gear transmission mechanism 5 are arranged laterally.
[0059] In the first filter chamber 2, the specific structure of the connecting plate A, a set of movable plates A1, and another set of movable plates A2 is as follows: Figures 6 to 8 As shown. The linkage A and the two eccentric mechanisms 7 are assembled in an explosive structure as shown. Figure 5 As shown.
[0060] In the second filter chamber 2, the specific structure of the connecting plate B, a set of movable plates B1, and another set of movable plates B2 is as follows: Figures 9 to 11 As shown.
[0061] This utility model improves upon the existing technology and has at least the following beneficial effects:
[0062] I. Advantages of eccentric layout:
[0063] 1. Improved ease of maintenance:
[0064] Two drive rods are positioned on the left and right sides of the connecting plate, respectively, and the eccentric mechanisms are also correspondingly distributed on the left and right sides of the connecting plate. This layout places all eccentric mechanisms in a position that is easy to observe and maintain. Maintenance personnel do not need to spend a lot of time and effort disassembling numerous components to inspect the eccentric mechanisms below, which greatly improves maintenance efficiency and reduces maintenance costs.
[0065] 2. Enhanced corrosion resistance:
[0066] In existing designs, the lower eccentric mechanism is easily exposed to corrosive substances such as sewage and sludge, making it prone to damage. This invention, by placing the eccentric mechanism on both sides of the connecting plate, reduces the direct contact with corrosive substances, lowers the risk of corrosion of the eccentric mechanism, extends the service life of the equipment, and improves the reliability of equipment operation.
[0067] II. Advantages in driving stability:
[0068] 1. Balanced distribution of driving force:
[0069] Existing technologies, which place all eccentric mechanisms at the top, concentrate the driving force at the upper part of the equipment, resulting in uneven and unstable driving force. This invention, through the linkage of driving rods on both sides and corresponding eccentric mechanisms with the moving components, transmits the driving force symmetrically from both sides laterally. This design ensures that the driving force is uniform across all parts when the moving components perform circular motion, effectively avoiding equipment shaking and vibration caused by uneven driving force, and improving the stability of the dewatering machine's operation.
[0070] 2. Improved operational stability:
[0071] The gear transmission mechanism in this invention features a parallel design that drives the drive rods to rotate at the same speed and in the same direction, further ensuring the stability and consistency of the driving force. During equipment operation, the stable driving force enables the dewatering machine to operate continuously and efficiently, reducing the adverse effects of driving force fluctuations on the dewatering effect and equipment lifespan, and improving the overall operational stability of the equipment.
[0072] III. Advantages of the transmission structure:
[0073] 1. Balanced and stable structure:
[0074] The gears are arranged laterally, with the gearbox located at the mud inlet end, and are driven by an independent motor. This layout makes the force on the transmission system more even, the structure more stable, reduces the probability of failures caused by transmission structure problems during operation, and improves the overall structural strength and reliability of the equipment.
[0075] 2. Convenient lubrication and maintenance:
[0076] Horizontally arranged gears are easier to lubricate than diagonally arranged gears. Maintenance personnel can more easily lubricate the gears, ensuring they operate under good lubrication conditions, reducing gear wear, extending gear life, improving transmission efficiency, and ultimately enhancing the overall performance of the dewatering machine.
[0077] IV. The downward-facing ear design of the serial connection holes reduces sludge buildup on the filter chamber surface. Furthermore, the absence of filtrate obstruction at the bottom ensures stable filtration performance. (This is repetitive; please consider the necessity of this reiteration.)
[0078] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.
Claims
1. A transversely driven stacked spiral dewatering machine, characterized in that: include: A filter chamber supported by multiple support plates, wherein two spiral shafts are provided in the filter chamber and are arranged horizontally side by side within the filter chamber. The filter chamber includes at least one set of movable components that perform reciprocating circular motion, and the driving mechanism of the movable components includes: The drive rod has two, and each drive rod is simultaneously rotatably connected to and passes through all of the support plates; A drive source, mounted on the support plate, drives one of the drive rods to rotate; A gear transmission mechanism connects to and drives the drive rod to rotate at the same speed and in the same direction; And a linkage group, corresponding one-to-one with the movable component. Each linkage group includes two or more linkage plates, which are connected to the corresponding movable component. At the same time, the linkage plates are connected to two drive rods through an eccentric mechanism, so that when the drive rods rotate, they drive the linkage plates to perform reciprocating circular motion and drive all the movable ring plates to move in tandem. The eccentric direction and eccentric distance of the eccentric mechanism of the same linkage group relative to the drive rod are the same. The two drive rods are respectively located on the left and right sides of the connecting plate. The moving components are connected as one unit by the eccentric mechanism located on the left and right sides of the connecting plate to perform reciprocating circular motion.
2. The transversely driven stacked spiral dewatering machine as described in claim 1, characterized in that: The filter chamber contains two sets of movable components that perform reciprocating circular motion.
3. The transversely driven stacked spiral dewatering machine as described in claim 1, characterized in that: The connecting piece has a flat structure, and the connecting holes on both sides for connecting the drive rod are arranged close to the horizontal line direction.
4. The transversely driven stacked spiral dewatering machine as described in claim 3, characterized in that: All of the aforementioned serial ports have their ear angles designed to face downwards.
5. A transversely driven stacked spiral dewatering machine as described in claim 1, characterized in that: The gearbox of the gear transmission mechanism is located at the mud inlet end of the filter chamber and is driven by an independent motor. The multiple gears of the gear transmission mechanism are arranged laterally.