Shuttle drive

Abstract

The utility model discloses a kind of reciprocating drive devices, belong to environmental protection technical field.It include frame, conveying structure and reciprocating drive structure, reciprocating drive structure includes stand, walking track wheel that can move up and down on stand, rear track wheel that rear drive shaft end portion is coaxially arranged, front track wheel in the left side or right side of frame, track and be used for driving walking track wheel up and down movement lifting drive mechanism, the front and rear ends of track are respectively wound on front track wheel and rear track wheel;Walking track wheel is located between the upper track and lower track of track;When walking track wheel is located in high position, walking track wheel is engaged with the downside of upper track;When walking track wheel is located in low position, walking track wheel is engaged with the upside of lower track;Walking track wheel realizes the reciprocating motion of frame front and rear by up and down movement;When frame does not move front and rear and conveying structure operates, walking track wheel does not engage with upper track and lower track.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection technology, and specifically relates to a reciprocating drive device for a stacked filter press. Background Technology

[0002] Wastewater treatment methods utilize physical, chemical, and biological methods to purify wastewater, reduce pollution, and ultimately achieve wastewater recycling and reuse, making full use of water resources. Urban domestic sewage mainly originates from a range of urban public places and facilities, including households, schools, and businesses. The pollutants in urban domestic sewage are diverse, but in terms of their main content, they are predominantly organic matter, with starch, protein, sugars, mineral oil, and other household waste being the most abundant components.

[0003] Based on the degree of treatment, wastewater treatment (mainly urban domestic sewage and some industrial wastewater) can generally be divided into three levels.

[0004] The primary treatment task is to remove suspended solids from wastewater. Physical treatment methods are commonly used for this purpose. Generally, after primary treatment, the removal rate of suspended solids is 70%-80%, while the removal rate of biochemical oxygen demand (BOD) is only about 25%-40%, resulting in a low level of wastewater purification.

[0005] The task of secondary treatment is to significantly remove organic pollutants from wastewater. Taking BOD as an example, 80%-90% of BOD in wastewater can generally be removed after secondary treatment. For instance, the BOD content in municipal sewage can be below 30 mg / L after treatment. Most treatment units of aerobic biological treatment methods can meet this requirement.

[0006] The task of tertiary treatment is to further remove pollutants that were not removed by secondary treatment, including organic matter, phosphorus, nitrogen and soluble inorganic matter that have not been degraded by microorganisms.

[0007] Wastewater treatment generates a large amount of sludge, which typically has a water content of over 80% and contains a significant amount of organic matter. In current technologies, to effectively treat and utilize sludge for environmental purposes, turning waste into treasure and resources, dewatering the sludge and minimizing its water content is crucial. Mechanical dewatering is one of the most commonly used and fastest dewatering techniques. Common mechanical equipment used for dewatering includes belt filter presses, plate and frame filter presses, screw presses, centrifugal dewatering machines, vacuum suction filters, and multi-layer vertical filter presses.

[0008] For example, patent application number CN201911237697.3 discloses a multi-layer filter press device, including a multi-layer cloth assembly, a cloth sludge device, and a pressing device. The pressing device includes a vertically movable pressure head and a vertically movable liftable tray located in a pressing frame below the pressure head. The multi-layer cloth assembly includes a multi-layer cloth frame and a multi-layer cloth device that is reciprocally mounted on the multi-layer cloth frame via a first telescopic drive device. The cloth sludge device is arranged at the feed end of the multi-layer cloth device, and the pressing device is arranged at the discharge end of the multi-layer cloth device. The multi-layer cloth device includes a frame. The frame includes an upper filter cloth operating assembly, a lower filter cloth operating assembly, an upper filter cloth disposed on the upper filter cloth operating assembly, and a lower filter cloth disposed on the lower filter cloth operating assembly. These components allow the upper and lower filter cloths to be operated correspondingly to move the material held by the upper and lower filter cloths toward the pressing device. The first telescopic drive device can drive the stacking device to move toward the pressing device, thereby enabling the upper and lower filter cloths, which are moving toward the pressing device and holding the material, to be reciprocally stacked on a liftable tray below the press head.

[0009] In the prior art, the device drives the frame of the fabric folding device to move back and forth via a first telescopic drive device (specifically, a hydraulic cylinder arranged in a forward and backward direction). The following problems exist with using a hydraulic cylinder to drive the forward and backward movement of the fabric folding device: (1) The cylinder is relatively long and the matching hydraulic pump station is also relatively large, which will occupy a lot of space; (2) It is difficult to synchronize the forward and backward movement speed of the stacking device with the conveying speed of the filter cloth. If the speed difference is large, it will affect the cloth effect. Utility Model Content

[0010] To address the aforementioned problems, this utility model provides a reciprocating drive device, employing an alternative method to drive the fabric stacking device by using a conveying structure as the power source to drive the frame's forward and backward movement. The technical solution is as follows: This utility model embodiment provides a reciprocating drive device, which includes a frame 1 and a conveying structure 2 arranged in the front-rear direction at its rear. The frame 1 is capable of moving in the front-rear direction. The conveying structure 2 includes a front drive shaft 21, a rear drive shaft 22, a conveyor belt 23, and a drive motor 24. The conveyor belt 23 is arranged in the front-rear direction and its front and rear ends are respectively wound around the front drive shaft 21 and the rear drive shaft 22. The front drive shaft 21 or the rear drive shaft 22 is connected to the drive motor 24. The device also includes a reciprocating drive structure 3, which is located on the left or right side of the frame 1. The reciprocating drive structure 3 includes a vertically arranged column 31, a walking track wheel 32 on the column 31 that can move up and down, a rear track wheel 33 coaxially arranged at the end of the rear drive shaft 22, a front track wheel 34 on the left or right side of the frame 1, and a conveyor belt 23 along the front drive shaft 22. The rearward-oriented track 35 and the lifting drive mechanism for driving the walking track wheel 32 to move up and down are provided. The front track wheel 34 is located directly in front of the rear track wheel 33, and the front and rear ends of the track 35 are respectively wrapped around the front track wheel 34 and the rear track wheel 33. The walking track wheel 32 is arranged in the left-right direction, located inside the column 31, and between the upper and lower tracks of the track 35. When the walking track wheel 32 is in a high position, it engages with the lower side of the upper track; when the walking track wheel 32 is in a low position, it engages with the upper side of the lower track. The reciprocating motion of the frame 1 is achieved by the up-and-down movement of the walking track wheel 32. When the frame 1 is not moving back and forth and the conveying structure 2 is running, the walking track wheel 32 does not engage with the upper and lower tracks.

[0011] Furthermore, in this embodiment, the bottom of the frame 1 is slidably mounted on the longitudinal slide rail 4, which is mounted on the base 5 in the front-back direction.

[0012] In this embodiment, the frame 1 includes a top frame and two support frames arranged side by side on its lower side. There are two longitudinal slide rails 4, which are located on the lower side of the two support frames respectively. The top frame is arranged horizontally in the front-back direction. The conveying structure 2 is located on the top frame and is located above the filter press frame 6. The two support frames are located on the outer sides of the left and right sides of the filter press frame 6 respectively, and are slidably arranged on the two longitudinal slide rails 4 respectively. The support frames are arranged in the front-back direction and are vertically arranged.

[0013] Furthermore, in this embodiment, a pneumatic pin 7 is provided on the lower left and / or right side of the frame 1; the pneumatic pin 7 is arranged vertically downward, and a baffle 8 is provided on the base 5 and located below the pneumatic pin 7. The baffle 8 is arranged in the left and right direction and is located outside the longitudinal slide rail 4 on the corresponding side; when the frame 1 does not move back and forth, the pneumatic pin 7 extends and the lower end of its telescopic rod abuts against the front side of the baffle 8.

[0014] Specifically, in this embodiment, the conveying structure 2 is a chain conveyor.

[0015] Specifically, in this embodiment, the front drive shaft 21 is located in the middle of the frame 1, and the rear drive shaft 22 is located at the rear end of the frame 1 and is connected to the drive motor 24 in a transmission manner; the drive motor 24 is fixed on the left or right side of the frame 1 and is located on the opposite side of the reciprocating drive structure 3.

[0016] Furthermore, in this embodiment, a mounting seat 9 is provided on the middle of the left side or the middle of the right side of the frame 1, and the front track wheel 34 is provided on the mounting seat 9. The mounting seat 9 is provided on the frame 1 in a way that can be adjusted back and forth.

[0017] In this embodiment, the track 35 is composed of N chains arranged side by side. The front track wheel 34, the rear track wheel 33 and the walking track wheel 32 are all composed of N sprockets arranged side by side. Each chain is equipped with a sprocket and meshes with the corresponding sprocket.

[0018] Furthermore, the reciprocating drive structure 3 in this embodiment also includes a guard plate 36; the guard plate 36 is arranged in the front-rear direction, fixed on the left or right side of the frame 1, located directly above the track 35, covering the top of the track 35, and its front and rear ends are respectively located directly above the front track wheel 34 and the rear track wheel 33 and bend downward in an arc.

[0019] In this embodiment, the column 31 is a rectangular column, and the lifting drive mechanism includes a vertical slide rail, a slide seat slidably disposed on the vertical slide rail, and a screw lifting assembly for driving the vertical movement of the slide seat. The vertical slide rail is disposed on the front or rear side of the column 31 in a vertical direction, and the walking track wheel 32 is disposed on the slide seat. The screw lifting assembly is vertically disposed and is disposed between the column 31 and the slide seat.

[0020] The beneficial effects of the technical solution provided by this utility model embodiment are: (1) A reciprocating drive mechanism with a special structure is set up to drive the stacked fabric structure to move forward and backward through the conveying mechanism. The conveying mechanism does not need to change direction, but only needs to move the track wheels up and down to achieve switching. (2) Simple structure and easy to maintain (located on the left or right side of the frame, making it easy for maintenance workers to operate); (3) Small size; (4) Compared to the solution using oil cylinders and hydraulic pump stations, the cost is lower; (5) The conveying structure and frame are driven synchronously to ensure the fabric distribution effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the fabric folding machine in an embodiment of this utility model; Figure 2This is a top view of the reciprocating drive unit; Figure 3 This is a schematic diagram of the combination of the conveyor structure and the walking track wheel when the walking track wheel is in a high position; Figure 4 This is a schematic diagram of the combination of the conveyor structure and the walking track wheel when the walking track wheel is in a low position.

[0022] In the diagram: 1. Frame, 2. Conveying structure, 3. Reciprocating drive structure, 4. Longitudinal slide rail, 5. Base, 6. Filter press frame, 7. Pneumatic pin, 8. Baffle, 9. Mounting base; 21 Front drive shaft, 22 Rear drive shaft, 23 Conveyor belt, 24 Drive motor; 31. Column, 32. Track wheel, 33. Rear track wheel, 34. Front track wheel, 35. Track, 36. Protective plate. Detailed Implementation

[0023] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Example 1 See Figure 1-4 Example 1 provides a reciprocating drive device, which includes a frame 1, a conveying structure 2, and a reciprocating drive structure 3, etc.

[0025] The frame 1 is arranged in a front-to-back direction, with its bottom sliding on a longitudinal slide rail 4, allowing it to move back and forth. A pneumatic pin 7 is located on the lower left and / or right sides of the frame 1. The longitudinal slide rail 4 is mounted on a base 5 in a front-to-back direction. The pneumatic pin 7 is vertically downward. A baffle 8 is located on the base 5, below and behind the pneumatic pin 7. The baffle 8 is arranged in a left-to-right direction and is located on the outer side (left or right) of the corresponding longitudinal slide rail 4. When the frame 1 is not moving back and forth, the pneumatic pin 7 extends, and the lower end of its telescopic rod abuts against the front of the baffle 8 to prevent the frame 1 from moving backward (at this time, the fabric folding machine is in the discharge state).

[0026] The conveying structure 2 is arranged in a front-to-back direction and is located at the rear of the frame 1. Specifically, it is a chain conveyor capable of forward conveying (during material discharge) and backward conveying (during material distribution). The conveying structure 2 includes a front drive shaft 21, a rear drive shaft 22, a conveyor belt 23, and a drive motor 24. The front drive shaft 21 and the rear drive shaft 22 are arranged side-by-side, both in a left-to-right direction. The front drive shaft 21 is located in the middle of the frame 1, and the rear drive shaft 22 is located at the rear end of the frame 1. The conveyor belt 23 is arranged in a front-to-back direction, with its front and rear ends wound around the front drive shaft 21 and the rear drive shaft 22, respectively. The front drive shaft 21 or the rear drive shaft 22 is connected to the drive motor 24 for transmission.

[0027] The reciprocating drive structure 3 is located on the left or right side of the frame 1. The reciprocating drive structure 3 includes a column 31, a traveling track wheel 32, a rear track wheel 33, a front track wheel 34, a track 35, a lifting drive mechanism, and a guard plate 36. The column 31 is vertically oriented, its lower end fixed to the base 5, and is located on the left or right side of the frame 1; it is specifically a rectangular column. The traveling track wheel 32 is mounted on the column 31, capable of vertical movement, and is arranged horizontally. It is located inside the column 31, between the upper and lower tracks of the track 35, and between the front drive shaft 21 and the rear drive shaft 22. The rear track wheel 33 is coaxially mounted at the end (left or right) of the rear drive shaft 22. The front track wheel 34 is located on the left or right side of the frame 1, directly in front of the rear track wheel 33. The track 35 is arranged in the front-to-back direction, with its front and rear ends wrapped around the front track wheel 34 and the rear track wheel 33, respectively. A lifting drive mechanism is used to drive the walking track wheel 32 to move up and down. Specifically, the lifting drive mechanism includes a vertical slide rail, a slide block slidably mounted on the vertical slide rail, and a screw lifting assembly for driving the slide block vertically. The vertical slide rail is arranged vertically on the front or rear side of the column 31, and the walking track wheel 32 is mounted on the slide block. The screw lifting assembly is vertically arranged and positioned between the column 31 and the slide block. A guard plate 36 is arranged in the front-to-back direction, fixed to the left or right side of the frame 1, located directly above the track 35, shielding the top of the track 35. Its front and rear ends are located directly above the front track wheel 34 and the rear track wheel 33, respectively, and bend downwards in an arc shape.

[0028] When the filter press is feeding material, the traveling track wheel 32 is in a high position and engages with the lower side of the upper track. When the traveling track wheel 32 is in a low position, it engages with the upper side of the lower track; the reciprocating motion of the frame 1 is achieved by the up-and-down movement of the traveling track wheel 32.

[0029] When the filter press discharges material, the frame 1 does not move back and forth (the pneumatic pin 7 extends) and the conveying structure 2 is running. The walking track wheels 32 do not mesh with the upper and lower tracks, that is, there is a gap between the walking track wheels 32 and the upper and lower tracks.

[0030] Example 2 Example 2 provides a reciprocating drive device, whose structure is basically the same as that of Example 1, except that: the frame 1 in this example includes a top frame and two support frames arranged side by side on its lower side, and there are two longitudinal slide rails 4, which are located on the lower side of the two support frames respectively. The top frame is arranged horizontally in the front-to-back direction, and the conveying structure 2 is located on the top frame and above the filter press frame 6 (located on the base 5 and located below and behind the conveying structure 2, used to hold the stacked filter cloth). The two support frames are located on the outer sides of the left and right sides of the filter press frame 6, and are slidably mounted on the two longitudinal slide rails 4 respectively. The support frames are arranged in the front-to-back direction and are vertically arranged.

[0031] Example 3 See Figure 2 Example 3 provides a reciprocating drive device, whose structure is basically the same as that of Example 1, except that: in this example, a mounting seat 9 is provided at the middle of the left or right side of the frame 1, and the front track wheel 34 is mounted on the mounting seat 9. The mounting seat 9 can be adjusted back and forth on the frame 1 to adjust the front track wheel 34, thereby adjusting the tension of the track 35. Specifically, the mounting seat 9 has multiple elongated holes along the front-back direction, and the mounting seat 9 is fixed to the frame 1 by bolts (arranged along the left-right direction) passing through the elongated holes. The mounting seat 9 can be adjusted back and forth by loosening the bolts.

[0032] Example 4 See Figure 2 Example 4 provides a reciprocating drive device, whose structure is basically the same as that of Example 1, except that the end (left or right end) of the rear drive shaft 22 in this example is connected to the drive motor 24. The drive motor 24 is fixed on the left or right side of the frame 1 and is located on the opposite side of the reciprocating drive structure 3.

[0033] Example 5 Example 5 provides a reciprocating drive device, whose structure is basically the same as that of Example 4. The difference is that the reciprocating drive structure 3 in this example is located on the right side of the frame 1, and the drive motor 24 is located on the left side of the frame 1. The drive motor 24 is then connected to the left end of the rear drive shaft 22.

[0034] Example 6 See Figure 1-2 Example 6 provides a reciprocating drive device, whose structure is basically the same as that of Example 1, except that: in this example, the track 35 of the frame 1 is composed of N chains arranged side by side, where N is an integer from 2 to 4. The front track wheel 34, the rear track wheel 33, and the traveling track wheel 32 are all composed of N sprockets arranged side by side, with each chain corresponding to one sprocket and meshing with the corresponding sprocket.

[0035] Example 7 See Figure 1-2 Example 7 provides a reciprocating drive device, whose structure is basically the same as that of Example 6. The difference is that the track 35 of the frame 1 in this example is composed of three chains arranged side by side on the left and right. The front track wheel 34, the rear track wheel 33 and the walking track wheel 32 are all composed of three sprockets arranged side by side on the left and right.

[0036] Example 8 Example 8 provides a reciprocating drive device, whose structure is basically the same as that of Example 1, except that the material processed in this example is wet sludge from a wastewater treatment plant, with a water content of 80-85%. The parameters of the filter press are: the capacity of the filter press frame 6 is 10m³. 3 The main hydraulic cylinder has a pressure of 1250t and a feed rate of 10m³. 3 The machine operates at approximately [speed value missing] m / min; the front-to-back length of frame 1 is 5.5m, the front-to-back length of conveyor structure 2 is 3.3m, the front-to-back movement speed of frame 1 is 10-15m / min, and the cloth feeding speed is 30-45min / frame; during discharge, the filter cloth winding speed is 20-30m / min, and the discharge speed is 15-22min / frame. It has been running stably for a long time without any abnormalities.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reciprocating drive device, comprising a frame (1) and a conveying structure (2) arranged in a forward-backward direction at its rear, wherein the frame (1) is capable of moving forward and backward; the conveying structure (2) comprises a front drive shaft (21), a rear drive shaft (22), a conveyor belt (23), and a drive motor (24), wherein the conveyor belt (23) is arranged in a forward-backward direction and its front and rear ends are respectively wound around the front drive shaft (21) and the rear drive shaft (22), and the front drive shaft (21) or the rear drive shaft (22) is connected to the drive motor (24) for transmission; characterized in that, The device also includes a reciprocating drive structure (3), which is located on the left or right side of the frame (1); The reciprocating drive structure (3) includes a vertically arranged column (31), a walking track wheel (32) on the column (31) that can move up and down, a rear track wheel (33) coaxially arranged at the end of the rear drive shaft (22), a front track wheel (34) on the left or right side of the frame (1), a track (35) arranged in the front-rear direction, and a lifting drive mechanism for driving the walking track wheel (32) to move up and down. The front track wheel (34) is located directly in front of the rear track wheel (33), and the front and rear ends of the track (35) are respectively wrapped around the front track wheel (34) and the rear track wheel (33); the walking track wheel (32) The track wheel (32) is arranged in the left-right direction and is located inside the column (31). It is located between the upper track and the lower track of the track (35). When the track wheel (32) is in the high position, the track wheel (32) meshes with the lower side of the upper track. When the track wheel (32) is in the low position, the track wheel (32) meshes with the upper side of the lower track. The frame (1) moves back and forth through the up and down movement of the track wheel (32). When the frame (1) does not move back and forth and the conveying structure (2) is running, the track wheel (32) does not mesh with the upper track and the lower track.

2. The reciprocating drive device according to claim 1, characterized in that, The bottom of the frame (1) is slidably mounted on the longitudinal slide rail (4), which is mounted on the base (5) in the front-back direction.

3. The reciprocating drive device according to claim 2, characterized in that, The frame (1) includes a top frame and two support frames arranged side by side on its lower side. There are two longitudinal slide rails (4), which are located on the lower side of the two support frames respectively. The top frame is arranged horizontally in the front-back direction. The conveying structure (2) is located on the top frame and is located above the filter press frame (6). The two support frames are located on the outer sides of the left and right sides of the filter press frame (6) respectively, and are slidably arranged on the two longitudinal slide rails (4). The support frames are arranged in the front-back direction and are arranged vertically.

4. The reciprocating drive device according to claim 3, characterized in that, A pneumatic pin (7) is provided on the lower part of the left and / or right sides of the frame (1); the pneumatic pin (7) is set vertically downward, and a baffle (8) is provided on the base (5) and below the pneumatic pin (7). The baffle (8) is set in the left and right direction and is located on the outside of the longitudinal slide rail (4) on the corresponding side; when the frame (1) does not move back and forth, the pneumatic pin (7) extends and the lower end of its telescopic rod abuts against the front side of the baffle (8).

5. The reciprocating drive device according to claim 1, characterized in that, The conveying structure (2) is a chain conveyor.

6. The reciprocating drive device according to claim 1, characterized in that, The front drive shaft (21) is located in the middle of the frame (1), and the rear drive shaft (22) is located at the rear end of the frame (1) and is connected to the drive motor (24) in a transmission manner; the drive motor (24) is fixed on the left or right side of the frame (1) and is located on the opposite side of the reciprocating drive structure (3).

7. The reciprocating drive device according to claim 6, characterized in that, The frame (1) is provided with a mounting base (9) at the middle of the left side or the middle of the right side, and the front track wheel (34) is provided on the mounting base (9). The mounting base (9) is provided on the frame (1) in a way that can be adjusted back and forth.

8. The reciprocating drive device according to claim 1, characterized in that, The track (35) is composed of N chains arranged side by side on the left and right. The front track wheel (34), the rear track wheel (33) and the walking track wheel (32) are all composed of N sprockets arranged side by side on the left and right. Each chain is equipped with a sprocket and it meshes with the corresponding sprocket.

9. The reciprocating drive device according to claim 1, characterized in that, The reciprocating drive structure (3) also includes a guard plate (36); the guard plate (36) is arranged in the front-rear direction and is fixed on the left or right side of the frame (1). It is located directly above the track (35) and covers the top of the track (35). Its front and rear ends are located directly above the front track wheel (34) and the rear track wheel (33) respectively and bend downward in an arc.

10. The reciprocating drive device according to claim 1, characterized in that, The column (31) is a rectangular column. The lifting drive mechanism includes a vertical slide rail, a slide seat slidably disposed on the vertical slide rail, and a screw lifting assembly for driving the slide seat to move vertically. The vertical slide rail is disposed on the front or rear side of the column (31) in a vertical direction. The walking track wheel (32) is disposed on the slide seat. The screw lifting assembly is vertically disposed and is disposed between the column (31) and the slide seat.

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