KR102620758B1 - Movable filter cloth type filter press for preventing jam - Google Patents

Abstract

The present invention includes a filter cloth suspension shaft rotatably supported on left and right brackets fixed to the left and right ends of the upper surfaces of each of the filter plates arranged in the front and rear directions; A universal joint fixed to the left end of the filter cloth suspension axis in one of the neighboring filter cloth suspension axes, and fixed to the right end of the filter cloth suspension axis in the other one; A bevel gear consisting of a ring gear coupled to the hexagonal rod so as to penetrate the hexagonal rod extending in the front and rear direction from the upper left and right sides of the filter plates, and a pinion gear fixed to the universal joint and engaging the ring gear; A bevel gear housing rotatably surrounding the rotation axis of the ring gear and the pinion gear; A rail whose front and rear ends are fixed to be parallel to the hexagonal bar and coupled to the bevel gear housing to enable sliding of the bevel gear housing in the front and rear directions; At least one of a housing stopper and a shock absorber provided on the bevel gear housing to protrude toward a neighboring bevel gear housing; and a traction chain connecting adjacent bevel gear housings. It provides a movable filter press containing an anti-squeak filter cloth.

Description

Anti-slip filter cloth movable filter press {MOVABLE FILTER CLOTH TYPE FILTER PRESS FOR PREVENTING JAM}

The present invention relates to a mobile filter press equipped with filter cloth to be able to lift and lower a filter cloth between filter plates. More specifically, the suspension axis supporting the filter cloth at the top of the filter plate extends in the front-back direction from the upper left and right sides of the filter plate. It relates to a mobile filter press with an anti-slip filter cloth connected by a bevel gear fastened to a hexagonal bar and a universal joint or flexible shaft.

Generally, sewage discarded from homes or factories is sent to a sewage treatment plant and then treated, and the sludge generated during this treatment process is treated through reduction processes such as concentration and dehydration. And the dehydrator, which is one of the devices used in the sludge reduction process, separates filtrate from sludge, and is classified into belt press, filter press, screw press, centrifugal dehydrator, electroosmosis dehydrator, etc. depending on the operating principle.

The filter press is a device that presses sludge into a filtering chamber provided between filter plates in close contact with each other, separates the filtrate from the sludge, and then removes the sludge cake (dewatered sludge) from the filtering chamber. These filter presses are divided into filter presses with mobile filter presses and fixed filter presses depending on whether the filter cloth provided to surround the filter chamber between the filter plates is raised and lowered or fixed to the filter plates.

While dewatering is performed in the filter cloth mobile filter press, the filtrate separated from the sludge passes through the filter cloth surrounding the filter chamber and is then discharged to the outside of the filter plate via between the surface protrusions of the filter plate. And when dewatering is completed, the sludge cake is first separated from the filter cloth by freely falling from the filter chamber opened by the separation of the filter plates. After the filter plates are separated, the two filter cloths that formed the filter chamber move downward and spread apart, and at this time, the sludge cake is separated from the filter cloth two times. When the separation of the sludge cake is completed, the filter cloth rises again, and then the filter plates come into close contact. Then, the two filter cloths located between the filter plates again form a filter chamber, and the sludge to be dewatered is pressed into this filter chamber.

In this way, in a mobile filter press, the filter cloth must move in the vertical direction, so a means for lifting the filter cloth is provided. The conventional filter cloth lifting means includes a pair of hexagonal rods and a plurality of filter cloth suspension shafts. A pair of hexagonal rods are positioned apart from each other in the width direction (left and right directions) of the filter plates, are provided to rotate based on a rotation axis extending along the arrangement direction (front-back direction) of the filter plates, and are located on top of the filter plates. In addition, the plurality of filter fabric suspension axes extend in the left and right directions, are positioned apart from each other in the front and back directions, and are provided to rotate based on a rotation axis extending along the left and right directions. These filter cloth suspension shafts are each coupled to the hexagonal rod through a bevel gear. Additionally, sprockets are provided at both ends of the filter cloth suspension shaft, and a chain suspending the filter cloth is hung on these sprockets.

When the hexagonal rods rotate in the positive direction, the filter cloth suspension axes also rotate in the positive direction, and at this time, the filter cloth rises. On the other hand, when the hexagonal rods rotate in the reverse direction, the filter cloth suspension axes also rotate in the reverse direction, and at this time, the filter cloth descends.

A filter cloth mobile filter press having the above filter cloth lifting means is disclosed in Korean Patent No. 10-0541328 (filter press) and Korean Patent No. 10-1308939 (filter cloth mobile filter press).

Meanwhile, as disclosed in Korean Patent No. 10-1545547 (Filter Cloth Mobile Filter Press) and Korean Patent No. 10-1572055 (Filter Cloth Mobile Filter Press), a filter press without hexagonal rods is also known.

Korean Patent No. 10-0541328 (filter press) Korean Patent No. 10-1308939 (Filter cloth mobile filter press) Korean Patent No. 10-1545547 (Filter cloth mobile filter press) Korean Patent No. 10-1572055 (Filter cloth mobile filter press)

In a filter cloth mobile filter press equipped with a hexagonal bar, the hexagonal bar penetrates the ring gear of the bevel gear, and one end of the filter cloth suspension shaft is fastened to the pinion gear of the bevel gear. Therefore, when the filter plates open and close, the ring gear moves linearly along the hexagonal rod.

However, since the opening and closing of the filter plates is achieved by a hydraulic cylinder pushing or pulling the center of the pressure plate located in front of the frontmost filter plate, differences are bound to occur in the straight line movement distance of the left and right ends and the straight line movement distance of the top and bottom of the filter plates. And if this difference becomes large, the filter plates cannot move smoothly in a straight line, which ultimately causes the filter press to be destroyed.

Accordingly, the present invention seeks to provide a technology that ultimately prevents destruction of the filter press by enabling smooth linear movement of the filter plates even if there is a difference in the linear movement distance between the left and right ends and the top and bottom of the filter plates.

The present invention includes a filter cloth suspension shaft rotatably supported on left and right brackets fixed to the left and right ends of the upper surfaces of each of the filter plates arranged in the front-back direction; A universal joint fixed to the left end of the filter cloth suspension axis in one of the neighboring filter cloth suspension axes, and fixed to the right end of the filter cloth suspension axis in the other one; A bevel gear consisting of a ring gear coupled to the hexagonal rod so as to penetrate the hexagonal rod extending in the front and rear direction from the upper left and right sides of the filter plates, and a pinion gear fixed to the universal joint and engaging the ring gear; a bevel gear housing rotatably surrounding the rotation axis of the ring gear and the rotation axis of the pinion gear; A rail whose front and rear ends are fixed to be parallel to the hexagonal rod and coupled to the bevel gear housing to enable sliding of the bevel gear housing in the front and rear directions; At least one of a housing stopper and a shock absorber provided on the bevel gear housing to protrude toward a neighboring bevel gear housing; and a traction chain connecting adjacent bevel gear housings. It provides a movable filter press containing an anti-slip filter cloth.

In the anti-slip filter cloth mobile filter press, the universal joint may be replaced with a flexible shaft.

The rail is provided to support the bevel gear housing below the hexagonal bar.

The anti-slip filter cloth mobile filter press includes a pressure plate provided to simultaneously pressurize the frontmost filter plate and the frontmost left and right bevel gear housings rearward or pull them forward when the hydraulic cylinder operates.

According to the present invention, even if the left and right sides of the filter plate are distorted and/or the top and bottom are tilted, the ring gear of the bevel gear does not get stuck in the hexagonal bar.

In addition, according to the present invention, even though the connection between the bevel gear housing and the bracket on the upper surface of the filter plate is broken, the bevel gear housing can maintain its posture without rotating at all when the ring gear of the bevel gear rotates. And even if the hexagonal bar is long, sagging of the hexagonal bar is prevented.

In addition, according to the present invention, the bevel gear housing and the filter plate are simultaneously pressed and pulled even though the connection between the bevel gear housing and the bracket on the upper surface of the filter plate is broken.

Figure 1 is a plan view showing a typical filter cloth mobile filter press.
FIG. 2 is a longitudinal cross-sectional view showing the filter plate and filter cloth of the filter cloth mobile filter press shown in FIG. 1.
Figure 3 is a partial perspective view showing a first embodiment of the anti-squeak filter cloth mobile filter press according to the present invention.
Figure 4 is a partially exploded perspective view showing an enlarged portion A of Figure 3.
Figure 5 is a partial perspective view showing a second embodiment of the anti-squeak filter cloth mobile filter press according to the present invention.
Figure 6 is a partially exploded perspective view showing an enlarged portion A of Figure 5.

Hereinafter, preferred embodiments of the anti-squeak filter cloth mobile filter press according to the present invention will be described in detail with reference to the drawings. The terms or words used below should not be construed as limited to their usual or dictionary meanings, and based on the principle that an inventor can appropriately define the concept of a term in order to explain his or her invention in the best way, It should be interpreted with meaning and concept consistent with the technical idea of the present invention.

< General filter cloth mobile filter press >

For a clear and easy understanding of the present invention, a general filter cloth mobile filter press 10 will first be described with reference to FIGS. 1 and 2.

Generally, the filter cloth mobile filter press 10 includes a frame, a pressure plate 20, filter plates 30, and a hydraulic cylinder 40, as shown in FIG. 1.

The frame includes a front plate 12 and a back plate 14 positioned apart in the front-to-back direction. Additionally, the frame includes a pair of supports 16 positioned apart in the left and right directions, and both ends of the supports 16 are fixed to the front plate 12 and the back plate 14.

As shown in FIG. 1, the pressure plate 20 is located between the front plate 12 and the back plate 14, and is coupled to the support 16 to enable sliding movement in the front-back direction. Additionally, the pressure plate 20 is connected to the front-most aftereffect pipe 30 through a chain 22.

As shown in FIG. 1, the filter plates 30 are located between the pressure plate 20 and the back plate 14, and are coupled to the support 16 so that they can slide in the front-back direction. Additionally, neighboring filter plates 30 are connected by a chain 22.

The hydraulic cylinder 40 is used to move the pressure plate 20 in the front-back direction, and is mounted on the front plate 12 as shown in FIG. 1. And the rod 42 of the hydraulic cylinder 40 is fixed to the pressure plate 20.

When the hydraulic cylinder 40 operates in the above-described mobile filter press 10 and the rod 42 is pulled out, the pressure plate 20 is pushed by the rod 42 and moves toward the back plate 14. And at this time, the filter plates 30 are pushed by the pressure plate 20 and move toward the back plate 14, and reach a closed state (closed plate state) in which they are in close contact with each other as shown in (a) of FIG. 1. On the other hand, when the hydraulic cylinder 40 operates in the closed state and the rod 42 is retracted, the pressure plate 20 is moved toward the front plate 12 by being drawn by the rod 42. And at this time, the filter plates 30 connected to the chain 22 are drawn by the pressure plate 20 and move toward the front plate 12, and reach an open state where they are separated from each other as shown in (b) of FIG. 1.

When sludge is pressed into the filter plates 30 while the filter plates 30 are closed, the sludge is dewatered. In order to dehydrate sludge, a filter cloth 50 is required, and the filter press 10 includes a plurality of filter cloths 50.

The filter cloth 50 is provided in the form of a pair of cloths overlapping each other, as shown in FIG. 2. An upper rod 56 is provided at the top of the filter cloth 50, a first lower rod 58a is provided at the lower end of one of the pair of cloths, and a second lower rod 58b is provided at the lower end of the remaining cloth. It is provided.

Additionally, a sludge passage plate 52 is provided at the upper center of the filter cloth 50. The sludge passage plate 52 has a sludge passage hole 52a, through which the pressed sludge passes. In addition, the sludge passage plate 52 is also provided with a sludge supply passage 52b located on a portion of the inner peripheral surface of the sludge passage hole 52a, and this sludge supply passage 52b allows sludge to flow from the sludge passage hole 52a. It can be supplied between a pair of bracts.

The filter cloth 50 formed in this way is located between the filter plates 30 as shown in FIG. 2. When the filter plates 30 are in a closed state, the sludge passage hole 52a of the sludge passage plate 52 communicates with the sludge passage hole 34 of the filter plate 30, and a portion of the filter cloth 50 ( In b) (hereinafter referred to as the 'non-contaminated area'), a pair of cells are pressed and contacted by the filter plate 30, and the upper area (a) of the area (b) (hereinafter referred to as the 'contaminated area') In , a female room (54), a space between a pair of guns, is provided.

When the sludge is pressurized in the closed state, the sludge flows into the sludge passage hole 52a of the sludge passage plate 52, the sludge passage hole 34 of the filter plate 30, and the sludge supply path 52b of the sludge passage plate 52. While passing through, it is supplied to the filter chambers 54 of all filter cloths 50. And in the filter chamber 54, the sludge is dewatered by pressing force. At this time, the filtrate passes through the filter cloth 50 and the sludge cake remains in the filter chamber 54. Meanwhile, the filtrate that has passed through the filter cloth 50 moves downward along the gap between the protrusions (not shown) provided on the retreating surface 32 of the filter plate 30 and then passes through the hole (not shown) provided at the bottom of the filter plate 30. It is discharged to the outside of the filter plate (30) through the filter plate (30).

When this state continues for a predetermined time and dewatering of the sludge is completed, the filter plates 30 are opened, and at this time, the sludge cake freely falls from the filter chamber 54. Afterwards, the filter cloth 50 descends to remove the sludge cake remaining in the contaminated area (a) of the filter cloth 50. The filter cloth 50, which has been lowered to the lower limit, rises again to its original position. Meanwhile, when the filter cloth 50 is raised or lowered, the filter cloth 50 is washed by the washing water sprayed from the washing water spray pipe 92.

For the above lifting movement, the filter cloth 50 is connected to the lifting chain 78 as shown in FIG. 2. Specifically, the upper rod 56 of the filter cloth 50 is coupled to the upper end of the lifting chain 78, and the first and second lower rods 58a and 58b of the filter cloth 50 are connected to the lifting chain 78. It is connected to the bottom of . When the coupling relationship between the filter cloth 50 and the lifting chain 78 is as above, all filter cloths 50 can be raised and lowered simultaneously.

The lifting chain 78 is suspended at both ends of the suspension shaft 76. Therefore, when the suspension shaft 76 rotates in the forward direction, the filter cloth 50 descends, and when it rotates in the reverse direction, the filter cloth 50 rises.

As shown in FIG. 1, one end of the suspension shaft 76 is coupled to the hexagonal bar 74 through a bevel gear 77, and the opposite end is connected to a bracket 75 and a bearing fixed to the top of the filter plate 30. It is combined through. The bevel gear 77 moves along the hexagonal bar 74 when the filter plates 30 move in the forward and backward directions, and transmits the rotational force of the hexagonal bar 74 to the suspension shaft 76. Meanwhile, the front end of the hexagonal bar 74 is connected to the drive shaft 72 through another bevel gear 72a, as shown in FIG. 1, and the drive shaft 72 is mounted on the front plate 12. It is connected to the motor (70). The rear end of the hexagonal bar 74 is rotatably coupled to the top of the back plate 14.

When the motor 70 operates in the filter press 10 in the filter cloth moving chamber, the drive shaft 72, the hexagonal bar 74, and the suspension shaft 76 rotate, causing the filter cloth 50 to rise or fall.

< Anti-squeak filter cloth mobile filter press >

Hereinafter, the characteristics of the anti-squeak filter cloth mobile filter press 100 according to the present invention compared to the general filter cloth mobile filter press 10 as described above will be described with reference to FIGS. 3 to 6, but the same members as the previously described members have The drawing symbols will be quoted as is.

The anti-squeak filter cloth mobile filter press 100 according to the first embodiment of the present invention includes a filter cloth suspension shaft 76, a universal joint 150, and a bevel gear 77, as shown in FIGS. 3 and 4. , includes a bevel gear housing 130, a rail 120, a housing stopper 160, and a traction chain 110.

The filter cloth suspension shaft 76 is supported via bearings on left and right brackets 73 and 75 fixed to the left and right ends of the upper surfaces of each of the filter plates 30 arranged in the front-back direction. Therefore, the filter cloth suspension axis 76 can rotate around an axis extending along the left and right directions while being supported by the left and right brackets 73 and 75. At the left and right ends of the filter cloth suspension shaft 76, sprockets 76a are provided to which the lifting chain 78 suspending the filter cloth 50 is hung.

As is well known, the universal joint 150 is a joint that includes two parts 152 and 154 that allow angle changes with respect to each other and allow rotational force from one part to be transmitted to the other part. In the present invention, the first part 152, which is one of the two parts 152 and 154 of the universal joint 150, is fixed to the left and right ends of the filter cloth suspension axis 76, and is alternately fixed to the left and right while moving in the front and rear direction. do. Therefore, if the first portion 152 of the universal joint 150 is fixed to the left end of the filter fabric suspension axis 76 in one of the neighboring filter fabric suspension shafts 76, the first portion 152 of the universal joint 150 is fixed to the left end of the filter fabric suspension shaft 76. It is fixed at the right end.

The bevel gear 77 has a structure in which a ring gear 77a and a pinion gear 77b are vertically engaged with each other. The ring gear 77a is coupled to the hexagonal bar 74 so as to penetrate the hexagonal bar 74. Therefore, the ring gear 77a rotates together with the hexagonal bar 74 and may move in the front-back direction along the hexagonal bar 74.

The pinion gear 77b is vertically engaged with the ring gear 77a. Therefore, when the ring gear 77a rotates around an axis extending in the front-back direction due to the rotation of the hexagonal bar 74, the pinion gear 77b rotates around the axis extending in the left-right direction. In addition, the rotation axis 77b-1 of the pinion gear 77b is fixed to the part that is not coupled to the filter cloth suspension shaft 76 among the two parts 152 and 154 of the universal joint 150, that is, the second part 154. do. Therefore, when the pinion gear 77b rotates, both the universal joint 150 and the filter cloth suspension shaft 76 rotate.

The bevel gear housing 130 surrounds the rotation axis (not shown) of the ring gear 77a so that it can move along the hexagonal bar 74 together with the ring gear 77a. In addition, a bearing (not shown) is provided between the rotating shaft of the bevel gear housing 130 and the ring gear 77a, so that the bevel gear housing 130 does not rotate even if the ring gear 77a rotates together with the hexagonal bar 74. do.

In addition, the bevel gear housing 130 also surrounds the rotation shaft 77b-1 of the pinion gear 77b. At this time, a bearing (not shown) is also provided between the bevel gear housing 130 and the rotation shaft 77b-1 of the pinion gear 77b. Poetry) is provided. Therefore, even if the pinion gear 77b rotates, the bevel gear housing 130 does not rotate. Meanwhile, the end of the pinion gear rotation shaft 77b-1 slightly protrudes out of the bevel gear housing 130 so that it can be fixed to the second portion 154 of the universal joint 150.

Conventionally, the bevel gear housing 130 was fixed to the left and right brackets 73 and 75 on the upper surfaces of the filter plates 30. However, in the first embodiment of the present invention, the connection between the bevel gear housing 130 and the left and right brackets 73 and 75 is broken, and the pinion gear 77b and the filter cloth suspension shaft 76 are connected through the universal joint 150. . Therefore, in the first embodiment of the present invention, the conventional problem of the ring gear 77a being caught in the hexagonal bar 74 does not occur at all, and this is explained in detail as follows.

When the filter plates 30 move from an open state to a closed state, the front filter plates 30 move backward and the filter plates 30 come into contact one after another. In this process, the left end of the filter plates 30 moves to the right. Distortion occurs by advancing further or less than the end, that is, distortion on the left and right sides. This left and right distortion also occurs when the filter plates 30 move from the closed state to the open state.

In addition, when the filter plate 30 moves in the front-to-back direction, not only the left and right sides are distorted, but also the top and bottom sides are tilted. That is, since the filter plate 30 has a structure in which its center of gravity is located at the bottom, when the filter plates 30 in the open state are sequentially pushed backward, the upper end of the filter plate 30 moves further backward than the lower end. Tilt, that is, tilting upward and downward, is occurring.

However, when the bearing housing 130 is fixed to the left and right brackets 73 and 75 of the filter plate 30 as in the prior art, left and right distortion and/or up and down tilt of the filter plates 30 occur in several filter plates 30. Even though the ring gear 77a is tightly stuck to the hexagonal bar 74 and cannot move backwards when accumulated, the hydraulic cylinder 40 continues to press the filter plates 30 backward, ultimately causing the housing ( 130) Destruction, or destruction of the brackets (73, 75), or destruction of the suspension shaft (76) occurs.

However, in the first embodiment of the present invention, the connection between the bearing housing 130 and the left and right brackets 73 and 75 is broken, and only the left or right end of the filter cloth suspension shaft 76 is connected to the pinion gear 77b of the bevel gear 77. ) and the universal joint 150, so even if the filter plate 30 is twisted left and right and/or tilted up and down, the second part 154 of the universal joint 150 maintains its posture and only maintains its position. Only the angle of the first portion 152 with respect to the second portion 154 changes. Therefore, in the first embodiment of the present invention, the phenomenon of the ring gear 77a of the bevel gear 77 being caught in the hexagonal bar 74 does not occur at all, and thus the housing 130 and the brackets 73 and 75 are destroyed and present. Shrinkage (76) destruction also does not occur at all. However, in the present invention, the rotational force of the pinion gear 77b is transmitted as is to the filter cloth suspension shaft 76 through the universal joint 150.

Meanwhile, the rail 120 extends parallel to the hexagonal bar 74 from the lower part of the hexagonal bar 74. And the front end of the rail 120 is fixed to the front plate 12, and the rear end of the rail 120 is fixed to the back plate 14. Additionally, the rail 120 is inserted into the guide groove 132 provided on the lower surface of the bevel gear housing 130. The portion of the rail 120 that comes into contact with the bevel gear housing 130 in the above guide groove 132 is lined, which allows the bevel gear housing 130 to slide smoothly in the forward and backward directions along the rail 120. This is to make it possible.

As already explained, when the hexagonal bar 74 rotates, the ring gear 77a of the bevel gear 77 also rotates, and the upper rail 120 does not rotate at all even if the ring gear 77a rotates. It performs the function of holding the bevel gear housing 130 so that the posture can be maintained as is.

When many filter plates 30 are installed to increase the dewatering capacity of the filter press 100, the length of the hexagonal bar 74 has no choice but to become longer. In this case, the hexagonal bar 74 has its own weight and several bevel gears 77. It has no choice but to sag down due to the weight of and the weight of several bevel gear housings 130. However, the above rail 120 supports the own weight of the hexagonal bar 74, the weight of the bevel gears 77, and the weight of the bevel gear housings 130, and the upper rail 120 supports the hexagonal bar 74 ) also performs the function of preventing sagging.

Previously, it was explained that a guide groove 132 is provided on the lower surface of the bevel gear housing 130, and the rail 120 is inserted into this guide groove 132. However, the above guide groove 132 may be provided on the side surface of the bevel gear housing 130 (for example, in the case of FIG. 4, the seat surface of the bevel gear housing 130). In this case as well, the rail 120 performs the function of preventing sagging of the hexagonal bar 74 and holding the bevel gear housing 130.

The housing stopper 160 is provided to extend in the front-back direction from either the front or back side of the bevel gear housing 130. 3 and 4 show an example in which the housing stopper 160 extends forward from the front of the bevel gear housing 130.

In addition, the housing stoppers 160 provided in each bevel gear housing 130 all have the same length. And the length of the housing stopper 160 is the distance between the bevel gear housings 130 that are adjacent to each other when the filter plates 30 in the present invention are in contact with each other in the conventional filter press 10. The distance between the bevel gear housings 130 that are adjacent to each other when touching is set to be equal to the “conventional separation distance when closing the plate.”

Therefore, when the housing stopper 160 of one bevel gear housing 130 is in contact with the neighboring bevel gear housing 130, the distance between these two bevel gear housings 130 is the same as the “conventional separation distance when closing” above. I do it. For example, when all four filter plates 30 in FIG. 3 are in contact, the housing stopper 160 of the right bevel gear housing 130 located second from the front is the right bevel gear housing located first from the front. When in contact with (130), the distance between the first and second right bevel gear housings (130) becomes the same as the “conventional separation distance when closing the plate.”

Conventionally, the bevel gear housing 130 is fixed to the left and right brackets 73 and 75 of the filter plate 30, so when the filter plates 30 come into contact and are sequentially pushed backward, the bevel gear housings 130 are also automatically moved backward. They were pushed one after another. However, in the present invention, the filter plates 30 are pushed backward while abutting in sequence as in the prior art, and the bevel gear housings 130 are pushed backward while abutting in turn with the housing stopper 160.

The housing stopper 160 may be replaced with or used together with a shock absorber (not shown). Shock absorbers (for example, Koba's industrial shock absorbers) are configured to receive elastic force in the direction in which the piston is pulled out from the cylinder. And when the piston receives an external force, it overcomes the elastic force and is drawn into the cylinder, and when this external force disappears, it returns to its original position due to the elastic force. The normal length of the shock absorber is set to be slightly longer than the length of the housing stopper (10). And the stroke of the shock absorber is set to the distance of the shock absorber in normal times minus the length of the shock absorber when the distance between the bevel gear housings 130 is the "conventional separation distance when closing."

When such a shock absorber is used, the bevel gear housing 130 is in contact with the piston of the shock absorber when pushed rearward and applies an external force to the piston, and the piston is slightly retracted into the cylinder, but the length of the shock absorber is the same as the bevel gear housings. (130) It is retracted only until the distance between plates reaches the above “conventional separation distance when closed.”

The traction chain 110 connects neighboring bevel gear housings 130, and all are provided with the same length. And the length of the traction chain 110 is the distance between the bevel gear housings 130 that are adjacent to each other when the filter plates 30 are placed in an open state in the conventional filter press 10, that is, the “conventional separation when open.” It is set equal to “distance”. Therefore, when all four filter plates 30 in FIG. 3 are spaced apart to the maximum, that is, in an open state, the distance between the right bevel gear housings 130 located first and second from the front is the above "conventional when open." becomes the “separation distance of”.

Conventionally, the bevel gear housing 130 is fixed to the left and right brackets 73 and 75 of the filter plate 30, so when the filter plates 30 connected by the chain 22 fall one after another and are pulled forward, the bevel gear housings (130) was also automatically towed forward. However, in the present invention, the filter plates 30 connected to the chain 22 are pulled forward while falling one after another as in the prior art, and the bevel gear housings 130 connected to the traction chain 110 are separate from the filter plates 30. They fall one after another and are towed forward.

As in the prior art, the pressure plate 20 is coupled to the support 16 so that it can slide in the front and rear direction between the front plate 12 and the back plate 14, and is connected to the frontmost filter plate 30 through a chain 22. It is connected, and left and right brackets 22 and 24 that slide through the hexagonal bar 74 are provided on the left and right sides of the upper surface, and fix the rod 42 of the hydraulic cylinder 40.

In addition, in the present invention, as shown in FIG. 3, the upper left bracket 22 is connected to the front left bevel gear housing 130 and the traction chain 110, and the upper right bracket 24 is connected to the front left bevel gear housing 130. It is connected to (130) and a traction chain (110). Therefore, when the pressure plate 20 moves forward by the operation of the hydraulic cylinder 40, the frontmost filter plate 30 is pulled forward, and at the same time, the front left and right bevel gear housings 130 are also pulled forward, and then the filter plates 30 at the rear thereof are pulled forward. ) and the left and right bevel gear housings 130 are sequentially towed forward.

In addition, in the present invention, a protrusion (22a) protruding rearward is provided on the left bracket (22), and this protrusion (22a) allows the stopper (160) of the frontmost right bevel gear housing (130) to fit with the right bracket (24). When touched, it comes into contact with the stopper (160) of the front left bevel gear housing (130). Therefore, when the pressure plate 20 moves backward by the operation of the hydraulic cylinder 40, the frontmost filter plate 30 is pushed rearward and at the same time the front left and right bevel gear housings 30 are also pushed rearward, and then the rear filter plates ( 30) and the left and right bevel gear housings 30 are sequentially pushed rearward.

In Figure 3, the front-right bevel gear housing 130 is shown as being provided on the front-most filter plate 30 and the protrusion 22a is provided on the left bracket 22. However, if the front-left bevel gear housing 130 is located on the front-most filter plate 30 ( 30), the upper protrusion 22a will be provided on the right bracket 24.

Additionally, in the present invention, the upper left and right brackets 22 and 24 slide through the rail 120.

Meanwhile, in the anti-squeak filter cloth mobile filter press 100 according to the second embodiment of the present invention, the universal joint 150 of the first embodiment is a flexible shaft 250 as shown in FIGS. 5 and 6. is replaced with

As is well known, the flexible shaft 250 is a shaft that can be bent in all directions, but is also provided so that the rotation of one end 252 is transmitted to the opposite end 254. In the second embodiment of the present invention, the first end 152, which is one of the two ends 252 and 254 of the flexible shaft 250, is fixed to the left and right ends of the filter cloth suspension shaft 76, and moves in the front-back direction. It is fixed alternately left and right. Therefore, if the first portion 252 of the flexible shaft 250 is fixed to the left end of the filter fabric suspension shaft 76 in one of the neighboring filter fabric suspension shafts 76, the first portion 252 is fixed to the left end of the filter fabric suspension shaft 76. It is fixed at the right end.

And among both ends 252 and 254 of the flexible shaft 250, the end not coupled to the filter cloth suspension shaft 76, that is, the second end 254, is fixed to the rotation shaft 77b-1 of the pinion gear 77b. . Therefore, when the pinion gear 77b rotates, this rotation is transmitted to the filter cloth suspension shaft 60 through the flexible shaft 250, causing the filter cloth suspension shaft 76 to also rotate. The rotation axis 77b-1 of the pinion gear 77b faces outward so that it can be comfortably coupled to the second end 254 of the flexible shaft 250.

In the second embodiment of the present invention, the connection between the bearing housing 130 and the left and right brackets 73 and 75 is broken, and only the left or right end of the filter cloth suspension shaft 76 is connected to the pinion gear 77b of the bevel gear 77. Since it is only connected by the flexible shaft 250, even if the filter plate 30 is twisted left and right and/or tilted up and down, only the bending phenomenon of the flexible shaft 150 occurs. Therefore, even in the second embodiment of the present invention, the phenomenon of the ring gear 77a of the bevel gear 77 being caught in the hexagonal bar 74 does not occur at all, and thus the housing 130 is destroyed, the brackets 73 and 75 are destroyed and Suspension axis (76) destruction also does not occur at all. However, in the second embodiment of the present invention, the rotational force of the pinion gear 77b is transmitted as is to the filter cloth suspension shaft 76 through the flexible shaft 250.

As described above, although the present invention has been described with limited examples and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following will be understood by those skilled in the art to which the present invention pertains. Of course, various modifications and variations can be made within the scope of equivalence of the patent claims to be described, and the above-described embodiments can be combined in various ways.

10: Common filter cloth mobile filter press
20: pressure plate 30: filter plate
73, 75: Bracket 74: Hexagonal bar
77: bevel gear 77a: ring gear
77b: pinion gear 76: filter cloth suspension shaft
100: anti-slip filter cloth mobile filter press
110: traction chain 120: rail
130: Bevel gear housing 150: Universal joint
160: Housing stopper 250: Flexible shaft

Claims (4)

a filter cloth suspension shaft rotatably supported on left and right brackets fixed to the left and right ends of the upper surface of each of the filter plates arranged in the front-to-back direction;
A universal joint fixed to the left end of the filter cloth suspension axis in one of the neighboring filter cloth suspension axes, and fixed to the right end of the filter cloth suspension axis in the other one;
A bevel gear consisting of a ring gear coupled to the hexagonal rod so as to penetrate the hexagonal rod extending in the front and rear direction from the upper left and right sides of the filter plates, and a pinion gear fixed to the universal joint and engaging the ring gear;
a bevel gear housing rotatably surrounding the rotation axis of the ring gear and the rotation axis of the pinion gear;
A rail whose front and rear ends are fixed to be parallel to the hexagonal rod and coupled to the bevel gear housing to enable sliding of the bevel gear housing in the front and rear directions;
At least one of a housing stopper and a shock absorber provided on the bevel gear housing to protrude toward a neighboring bevel gear housing; and
A movable filter press with an anti-slip filter cloth including a traction chain connecting adjacent bevel gear housings. a filter cloth suspension shaft rotatably supported on left and right brackets fixed to the left and right ends of the upper surface of each of the filter plates arranged in the front-to-back direction;
A flexible shaft fixed to the left end of the filter cloth suspension axis in one of the neighboring filter cloth suspension axes, and fixed to the right end of the filter cloth suspension axis in the other one;
A bevel gear consisting of a ring gear coupled to the hexagonal rod so as to penetrate the hexagonal rod extending in the front and rear direction from the upper left and right sides of the filter plates, and a pinion gear fixed to the flexible shaft and engaging the ring gear;
a bevel gear housing rotatably surrounding the rotation axis of the ring gear and the rotation axis of the pinion gear;
A rail whose front and rear ends are fixed to be parallel to the hexagonal rod and coupled to the bevel gear housing to enable sliding of the bevel gear housing in the front and rear directions;
At least one of a housing stopper and a shock absorber provided on the bevel gear housing to protrude toward a neighboring bevel gear housing; and
A movable filter press with an anti-slip filter cloth including a traction chain connecting adjacent bevel gear housings. According to claim 1 or 2,
The rail is provided to support the bevel gear housing below the hexagonal bar. According to claim 1 or 2,
A pressurizing plate provided to simultaneously pressurize the frontmost filter plate and the frontmost left and right bevel gear housings backwards or tow them forward when the hydraulic cylinder operates. An anti-squeak filter cloth mobile filter press including a pressure plate.

Images