Stirring device and disc type pressure filter

Abstract

The utility model relates to the technical field of auxiliary machines of solid-liquid separation equipment, in particular to a stirring device and a disc type pressure filter. The stirring device provided by the utility model comprises a driving mechanism, a transmission mechanism and a stirring mechanism, the transmission mechanism comprises a rotating shaft, a rocker, a first fixing frame and a second fixing frame, the driving mechanism comprises a driving part and a rod part, the driving part is rotationally connected with the first fixing frame, the other end of the driving part is connected with one end of the rod part, and the other end of the rod part is connected with the second fixing frame. The rod part is used for driving the rod part to stretch in the length direction. The driving part of the driving mechanism is connected with the first fixing frame, the rod part is rotationally connected with the rocker through the first connecting shaft, and the rotating shaft is rotationally connected with the second fixing frame, so that when the driving part drives the rod part to be telescopic in the length direction, the stirring mechanism can rotate around the axis of the rotating shaft, and the stirring function is achieved; the rod part is driven by the driving part to stretch out and draw back in the degree direction, so that the telescopic moving range is large.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for solid-liquid separation equipment, and particularly relates to a stirring device and a disc pressure filter. Background Art

[0002] A disc pressure filter is a device for separating substances, applicable to the occasion of solid-liquid separation. It shows extremely high performance in aspects such as high filtration efficiency, large processing capacity, energy conservation, and environmental protection. Therefore, it has been widely used in industries such as chemical engineering, pharmaceuticals, food, and light industry. In the existing disc pressure filter, a stirring device is provided to improve the filtration speed.

[0003] An existing stirring device includes a frequency modulation motor, a reducer, a transmission shaft, an eccentric crank, a connecting rod, a rocker, a fixed frame, and a stirring rod. The double transmission shaft connected to the reducer is driven by the frequency modulation motor. One eccentric crank is connected to each end of the double transmission shaft. The eccentric crank drives the rockers at both ends and the stirring rod connected to the other ends of the two rockers to make reciprocating swings through the two connecting rods, so as to realize continuous stirring of the slurry. The whole reciprocating stirring device is connected and fixed to the slurry tank body through the fixed frame.

[0004] The above-mentioned stirring device realizes reciprocating stirring by driving the eccentric crank with a frequency modulation motor. Therefore, its stirring range is small and the stirring effect is poor. Summary of the Utility Model

[0005] (1) The problem to be solved by the utility model is: how to increase the stirring range and improve the stirring effect.

[0006] (2) Technical Solution

[0007] A stirring device provided by the utility model includes a driving mechanism, a transmission mechanism, and a stirring mechanism;

[0008] The transmission mechanism includes a rotating shaft, a rocker, a first fixed frame, and a second fixed frame;

[0009] The driving mechanism includes a driving part and a rod part. The driving part is rotatably connected to the first fixed frame, and the other end is connected to one end of the rod part, used to drive the rod part to expand and contract along the length direction. The other end of the rod part is rotatably connected to the rocker through a first connecting shaft;

[0010] One end of the rocker is connected to the stirring mechanism, the rotating shaft is fixed to the other end of the rocker, and the rotating shaft is rotatably connected to the second fixed frame;

[0011] The axis of the rotating shaft, the axis of the first connecting shaft, and the axis of the rotational fit between the driving part and the first fixed frame are parallel to each other.

[0012] According to an embodiment of the present utility model, two sets of the driving mechanism and the transmission mechanism are provided;

[0013] The stirring mechanism includes a stirring rod. One rocker of the transmission mechanism is connected to one end of the stirring rod, and the other rocker of the transmission mechanism is connected to the other end of the stirring rod.

[0014] According to an embodiment of the present utility model, the driving mechanism includes a cylinder. The driving part is the cylinder barrel of the cylinder, the rod part is the piston rod of the cylinder, and the cylinder barrel is rotatably connected to the first fixing frame;

[0015] A shaft hole is provided at one end of the piston rod away from the cylinder barrel, and the first connecting shaft is rotatably matched with the shaft hole.

[0016] According to an embodiment of the present utility model, the first fixing frame includes a fixing seat. A first bearing seat is provided on the fixing seat, a second bearing seat is connected to the cylinder barrel, and the first bearing seat and the second bearing seat are rotatably connected through a second connecting shaft.

[0017] According to an embodiment of the present utility model, the second fixing frame includes a support seat, a mounting plate and a third bearing seat;

[0018] The mounting plate is mounted on the support seat, and the third bearing seat is mounted on the mounting plate;

[0019] One end of the rotating shaft is fixedly connected to the rocker, and the other end of the rotating shaft is mounted in the third bearing seat.

[0020] According to an embodiment of the present utility model, the stirring mechanism includes two sets of fixing components. Both ends of the stirring rod are respectively connected to the rocker through a set of the fixing components;

[0021] The fixing component includes a fixing block, a groove plate and a bolt. One end of the stirring rod is fixedly connected to the fixing block. The groove plate is fixedly connected to one end of the rocker close to the fixing block. A groove is provided on the fixing block, and the groove plate is located in the groove. First through holes and second through holes are respectively provided on the groove plate and the fixing block. After the bolt sequentially passes through the second through hole and the first through hole, a nut is screwed on the bolt.

[0022] According to an embodiment of the present utility model, the stirring rod is prism-shaped.

[0023] According to an embodiment of the present utility model, a relief hole is provided on the rocker, and both ends of the first connecting shaft are fixedly connected to two side walls of the relief hole.

[0024] According to an embodiment of the present utility model, the stirring device further includes a controller, and the air cylinder is electrically connected to the controller.

[0025] A disk pressure filter includes any one of the above-mentioned stirring devices.

[0026] Advantages of the present utility model:

[0027] By connecting the driving part of the driving mechanism to the first fixing frame, the rod part is rotatably connected to the rocker through the first connecting shaft, and the rotating shaft is rotatably connected to the second fixing frame. Therefore, when the driving part drives the rod part to stretch along the length direction, the rocker can rotate around the axis of the rotating shaft. Since the other end of the rocker is connected to the stirring mechanism, the stirring mechanism can rotate around the axis of the rotating shaft, thereby realizing the stirring function. Since the rod part is driven by the driving part to stretch along its horizontal direction, the stretching and moving range is large, so the stirring range is large and the stirring effect is better. Description of the drawings

[0028] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 A three-dimensional view provided by an embodiment of the present utility model;

[0030] Figure 2 Provided by an embodiment of the present utility model Figure 1 An enlarged view of part A in

[0031] Figure 3 Provided by an embodiment of the present utility model Figure 1 An enlarged view of part B in

[0032] Figure 4 Provided by an embodiment of the present utility model Figure 1 An enlarged view of part C in

[0033] Reference numerals: 1, driving mechanism; 2, rotating shaft; 3, rocker; 4, first connecting shaft; 5, stirring mechanism; 501, stirring rod; 502, fixing block; 503, slot plate; 6, first fixing frame; 601, fixing seat; 602, second connecting shaft; 603, first bearing seat; 604, second bearing seat; 7, second fixing frame; 701, support seat; 702, mounting plate; 703, third bearing seat. Detailed embodiments

[0034] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] Embodiment 1:

[0036] As Figures 1-4 shown, an embodiment of the present utility model provides a stirring device, which includes a driving mechanism 1, a transmission mechanism, and a stirring mechanism 5;

[0037] The transmission mechanism includes a rotating shaft 2, a rocker 3, a first fixing frame 6, and a second fixing frame 7;

[0038] The driving mechanism 1 includes a driving part and a rod part. The driving part is rotatably connected to the first fixing frame 6, and the other end is connected to one end of the rod part, and is used to drive the rod part to expand and contract along its length direction. The other end of the rod part is rotatably connected to the rocker 3 through a first connecting shaft 4;

[0039] One end of the rocker 3 is connected to the stirring mechanism 5, the rotating shaft 2 is fixed to the other end of the rocker 3, and the rotating shaft 2 is rotatably connected to the second fixing frame 7;

[0040] The axis of the rotating shaft 2, the axis of the first connecting shaft 4, and the axis of the rotational fit between the driving part and the first fixing frame 6 are parallel to each other.

[0041] Specifically, by connecting the driving part of the driving mechanism 1 to the first fixing frame 6, the rod part is rotatably connected to the rocker 3 through the first connecting shaft 4, and the rotating shaft 2 is rotatably connected to the second fixing frame 7. Therefore, when the driving part drives the rod part to expand and contract along the length direction, the rocker 3 can rotate around the axis of the rotating shaft 2. Since the other end of the rocker 3 is connected to the stirring mechanism 5, the stirring mechanism 5 can rotate around the axis of the rotating shaft 2, thereby realizing the stirring function. Since the driving part drives the rod part to expand and contract along its horizontal direction, the expansion and contraction range is large, so the stirring range is large and the stirring effect is better.

[0042] The shape of the rocker 3 is an arc shape. When the stirring device is installed and applied in a disk type pressure filter, since multiple filter disks in the disk type pressure filter are located in the middle area of the disk type pressure filter, in order to make the swing amplitude of the rocker 3 larger, the rocker 3 includes an arc rod and a connecting rod. The upper half part close to the rotating shaft 2 is an arc rod. Therefore, when the rocker 3 rotates around the axis of the rotating shaft 2, it can avoid the filter disks, and thus when the stirring mechanism 5 stirs, its stirring range is larger and the stirring effect is better.

[0043] As Figure 1As shown, according to an embodiment of the present utility model, there are two sets of driving mechanisms 1 and transmission mechanisms, and the driving mechanisms 1 and the transmission mechanisms correspond to each other one by one;

[0044] The stirring mechanism 5 includes a stirring rod 501. One rocker 3 of the transmission mechanism is connected to one end of the stirring rod 501, and the other rocker 3 of the transmission mechanism is connected to the other end of the stirring rod 501.

[0045] In the existing stirring device, two stirring rods are driven by a double transmission shaft for stirring. This connection method requires a large transmission torque, the transmission shaft is too long and too thick, the manufacturing cost is high, and the failure rate is relatively high. In this embodiment, the driving part and the rod part of the driving mechanism 1 act as the power source, replacing the frequency modulation motor and the reducer. The driving mechanism 1 is simple, has a low failure rate, is convenient for maintenance and has a low cost.

[0046] By setting two sets of driving mechanisms 1 and transmission mechanisms, double drive is achieved, with sufficient power, a small load for each driving mechanism 1, a longer service life, and the need for a long and thick double transmission shaft is eliminated, reducing the manufacturing cost.

[0047] Furthermore, there are multiple stirring rods 501. Preferably, there are two stirring rods 501, and the two stirring rods 501 are arranged in parallel at intervals. Arranging multiple stirring rods 501 can increase the stirring range, thereby making the stirring effect better and the efficiency higher.

[0048] As Figure 1 shown, according to an embodiment of the present utility model, the stirring rod 501 is prism-shaped.

[0049] By adopting a prism shape for the stirring rod 501, the contact area between the stirring rod 501 and the slurry can be increased, and the stirring effect of the stirring rod 501 is better.

[0050] Certainly, in this embodiment, the stirring rod 501 can also be in other forms. For example, the stirring rod 501 includes a stirring shaft, and along the length direction of the stirring shaft, a plurality of square shafts are fixedly connected at intervals. The plurality of square shafts are formed by butting two angle steels, which can further increase the stirring range of the stirring rod 501 and improve the stirring effect. Its gist does not deviate from the design concept of the present utility model. Therefore, it should fall within the protection scope of the present utility model.

[0051] As Figure 1 shown, according to an embodiment of the present utility model, the driving mechanism 1 includes a cylinder, the driving part is the cylinder barrel of the cylinder, the rod part is the piston rod of the cylinder, and the cylinder barrel is rotatably connected to the first fixing frame 6;

[0052] One end of the piston rod away from the cylinder barrel is provided with a shaft hole, and the first connecting shaft 4 is rotationally matched with the shaft hole.

[0053] The cylinder is used as the driving mechanism 1. The cylinder only needs to adjust the one-way throttle valve to simply complete the constant-speed control. It works reliably under extreme standards, is easy to operate in practice, and has a lower cost.

[0054] Of course, in this embodiment, an electric push rod can also be used as the driving mechanism 1. When using an electric push rod as the actuator, power supply is required when changing the control opening, and power supply can be stopped when the required opening is reached. Therefore, it is more energy-efficient.

[0055] Of course, in this embodiment, the driving part and the rod part of the driving mechanism 1 can also be in other forms. For example, the driving part is a servo motor, a screw rod, and a limit chute, the rod part is a strip-shaped slide rod, one end of the limit chute is fixedly connected to the first bearing seat 603, the other end of the limit chute is slidably connected with a strip-shaped slide rod, the strip-shaped slide rod is screwed to the screw rod, and the end of the strip-shaped slide rod away from the limit chute is rotatably connected to the rocker 3 through the first connecting shaft 4. The servo motor is installed on the limit chute, and the screw rod is arranged in the limit chute;

[0056] The length of the strip-shaped slide rod is equal to the length of the screw rod and the length of the limit ring groove. The length direction of the screw rod, the length direction of the limit chute, and the length direction of the strip-shaped slide rod are all the same;

[0057] The servo motor is screwed to the screw rod and is used to drive the screw rod to rotate. Then, under the dual action of the screw rod and the limit chute, the strip-shaped slide rod moves along the length direction of the strip-shaped slide rod, and it can also drive the rocker 3 to rotate around the axis of the rotating shaft 2. Its purpose does not deviate from the design concept of the present invention. Therefore, it should fall within the protection scope of the present invention.

[0058] Since the slurry has viscosity, the first connecting shaft 4 is arranged in the middle upper area of the rocker 3. Then, slurry enters the shaft hole and the first connecting shaft 4, preventing the shaft hole and the first connecting shaft 4 from running smoothly due to the entry of slurry, and improving the stability.

[0059] As Figure 1 and Figure 3 shown, according to an embodiment of the present invention, the first fixing frame 6 includes a fixed seat 601. A first bearing seat 603 is provided on the fixed seat 601. A second bearing seat 604 is connected to the cylinder barrel. The first bearing seat 603 and the second bearing seat 604 are rotatably connected through a second connecting shaft 602.

[0060] It should be noted that the first bearing seat 603 includes a first mounting seat and a first bearing. The first mounting seat is fixedly installed on the fixed seat 601, and the first bearing is installed in the mounting seat. The second bearing seat 604 includes a second mounting seat and a second bearing. The second mounting seat is fixedly connected to the cylinder barrel, and the second bearing is installed in the second mounting seat. One end of the second connecting shaft 602 is connected to the first bearing, and the other end is connected to the second bearing.

[0061] The setting of the fixed seat 601 can not only fix the first bearing seat 603, but also support the first bearing seat 603, so that when the stirring rod 501 reciprocally rotates around the axis of the rotating shaft 2, the stability is better.

[0062] According to an embodiment of the present invention, a relief hole is provided on the rocker 3, and both ends of the first connecting shaft 4 are fixedly connected to the two side walls of the relief hole respectively.

[0063] By providing the relief hole, the first connecting shaft 4 can be installed in the relief hole, and the shaft hole end of the piston rod is also located in the relief hole, so that the rod part of the driving mechanism 1 can be limited and will not move axially along the first connecting shaft 4. The stability is better. A fourth bearing is installed in the shaft hole of the piston rod, and the first connecting shaft 4 is rotatably connected to the shaft hole through the fourth bearing.

[0064] As Figure 1 and Figure 4 shown, according to an embodiment of the present invention, the second fixing bracket 7 includes a support seat 701, a mounting plate 702 and a third bearing seat 703;

[0065] The mounting plate 702 is installed on the support seat 701, and the third bearing seat 703 is installed on the mounting plate 702;

[0066] One end of the rotating shaft 2 is fixedly connected to the rocker 3, and the other end of the rotating shaft 2 is installed in the third bearing seat 703.

[0067] Wherein, the rotating shaft 2 can also be fixedly connected to the rocker 3 through a third bearing, and the other end thereof is installed in the third bearing seat 703. The structure of the third bearing seat 703 is the same as that of the first bearing seat 603.

[0068] The support seat 701 includes a first rod body, a second rod body and a third rod body connected in sequence. The mounting plate 702 is installed on the second rod body. The first rod body and the third rod body are symmetrically arranged, and the distance from the end of the first rod body close to the second rod body to the end of the third rod body close to the second rod body is less than the distance from the other end of the rod body to the other end of the third rod body, so that the support performance of the support seat 701 is better.

[0069] The height of the support seat 701 is higher than that of the fixed seat 601. The support seat 701 can support the rotating shaft 2, so that the stability of the stirring rod 501 when rotating around the axis of the rotating shaft 2 is better.

[0070] According to an embodiment of the present invention, as Figure 2 shown, the stirring mechanism 5 includes two groups of fixing components, and both ends of the stirring rod 501 are respectively connected to the rocker 3 through a group of fixing components;

[0071] The fixing component includes a fixing block 502, a clamping groove plate 503 and a bolt. One end of the stirring rod 501 is fixedly connected to the fixing block 502. One end of the rocker 3 close to the fixing block 502 is fixedly connected with a clamping groove plate 503. A groove is formed on the fixing block 502, and the clamping groove plate 503 is located in the groove. A first through hole and a second through hole are respectively formed on the clamping groove plate 503 and the fixing block 502. After the bolt passes through the second through hole and the first through hole in sequence, a nut is screwed on the bolt.

[0072] The stirring rod 501 and the rocker 3 are connected by a bolt in a clamping groove type. The bolt is fixed from both sides of the clamping groove plate 503. During the swinging process of the stirring rod 501, the bolt only bears the weight of the material and the stirring rod 501 itself, and does not bear the shear force generated during the swinging process. The shear force is shared by the clamping groove plate 503, preventing the falling-off stirring rod 501 from damaging a large number of rotating filter discs in the disc pressure filter after the bolt is cut off, and the safety is higher.

[0073] According to an embodiment of the present invention, the stirring device further includes a controller, and the air cylinder is electrically connected to the controller.

[0074] By setting the controller to control the two air cylinders to expand and contract simultaneously and synchronously, the expansion and contraction range of the air cylinders can be adjusted at any time according to the different densities of the slurry, and then the swinging frequency and swinging amplitude of the stirring rod 501 swinging around the rotating shaft 2 can be adjusted.

[0075] Embodiment 2:

[0076] A disc pressure filter includes the stirring device in Embodiment 1. The fixing seat 601 in the first fixing frame 6 is fixedly connected to the inner wall of the filter by a plurality of first locking bolts. The supporting seat 701 in the second fixing frame 7 is fixedly connected to the inner wall of the filter by a plurality of second locking bolts. It is used to stir the slurry in the filter to improve the filtering efficiency.

[0077] Since there are a large number of filter discs in the middle part of the disc pressure filter, therefore, the two driving mechanisms 1 are respectively arranged at both ends of the stirring rod 501, and there are two driving mechanisms 1 and transmission mechanisms, and the driving mechanisms 1 and the transmission mechanisms correspond to each other one by one.

[0078] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0079] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the connection inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more than two.

[0080] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A stirring device, characterized in that: It comprises a driving mechanism (1), a transmission mechanism and a stirring mechanism (5); The transmission mechanism comprises a rotating shaft (2), a rocker (3), a first fixing frame (6) and a second fixing frame (7); The driving mechanism (1) comprises a driving part and a rod part, wherein the driving part is rotatably connected to the first fixing frame (6), and the other end of the driving part is connected to one end of the rod part, and is used to drive the rod part to extend and retract along the length direction, and the other end of the rod part is rotatably connected to the rocker (3) via a first connecting shaft (4); One end of the rocking arm (3) is connected to the stirring mechanism (5), the rotating shaft (2) is fixed to the other end of the rocking arm (3), and the rotating shaft (2) is rotatably connected to the second fixing frame (7); The axis of the rotating shaft (2), the axis of the first connecting shaft (4) and the axis of rotational cooperation between the driving part and the first fixing frame (6) are parallel to each other.

2. A stirring device according to claim 1, characterized in that: The driving mechanism (1) and the transmission mechanism are each provided with two groups; The stirring mechanism (5) comprises a stirring rod (501), wherein a rocker (3) of one of the transmission mechanisms is connected to one end of the stirring rod (501), and another rocker (3) of the transmission mechanism is connected to the other end of the stirring rod (501).

3. A stirring device according to claim 1, characterized in that: The driving mechanism comprises a cylinder, the driving part is a cylinder barrel of the cylinder, the rod part is a piston rod of the cylinder, and the cylinder barrel is rotatably connected to the first fixing frame (6); An end of the piston rod away from the cylinder is provided with an axial hole, and the first connecting shaft (4) is rotatably matched with the axial hole.

4. A stirring device according to claim 3, characterized in that: The first fixing frame (6) comprises a fixing seat (601), a first bearing seat (603) is provided on the fixing seat (601), a second bearing seat (604) is connected to the cylinder, and the first bearing seat (603) and the second bearing seat (604) are rotatably connected via a second connecting shaft (602).

5. A stirring device according to claim 1, characterized in that: The second fixing frame (7) comprises a supporting seat (701), a mounting plate (702) and a third bearing seat (703); The mounting plate (702) is mounted on the support seat (701), and the third bearing seat (703) is mounted on the mounting plate (702); One end of the rotating shaft (2) is fixedly connected to the rocker (3), and the other end of the rotating shaft (2) is installed in the third bearing seat (703).

6. A stirring device according to claim 2, characterized in that: The stirring mechanism (5) comprises two sets of fixing components, and the two ends of the stirring rod (501) are respectively connected to the rocking arm (3) through one set of the fixing components; The fixing assembly comprises a fixing block (502), a slot plate (503) and a bolt; one end of the stirring rod (501) is fixedly connected to the fixing block (502); one end of the rocking arm (3) close to the fixing block (502) is fixedly connected to the slot plate (503); a groove is provided on the fixing block (502); the slot plate (503) is located in the groove; a first through hole and a second through hole are respectively provided on the slot plate (503) and the fixing block (502); after the bolt passes through the second through hole and the first through hole in sequence, a nut is screwed onto the bolt.

7. A stirring device according to claim 2, characterized in that: The stirring rod (501) is prism-shaped.

8. A stirring device according to claim 1, characterized in that: The rocker (3) is provided with a clearance hole, and the two ends of the first connecting shaft (4) are respectively fixedly connected to the two side walls of the clearance hole.

9. A stirring device according to claim 3, characterized in that: The stirring device also includes a controller, and the cylinder is electrically connected to the controller.

10. A disc pressure filter, characterized in that: It comprises a stirring device as described in any one of claims 1-9.

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