Automatic plate pulling system of filter press for eliminating shaft vibration

Abstract

The utility model discloses an automatic plate pulling system of a filter press for eliminating shaft vibration, which is used for solving the problems that a transmission shaft is broken and a chain of the filter press is broken and blocked due to slight vibration of the transmission shaft in the working process of the filter press, and belongs to the technical field of slime water treatment system equipment. The two ends of the transmission shaft are fixedly connected with a second trolley driving chain wheel and a third trolley driving chain wheel respectively, and a first transmission chain wheel is fixedly installed in the middle of the transmission shaft; the bearing further comprises a tilting fillet, the tilting fillet comprises a protruding part and a base, a through hole is formed in the protruding part in the axial direction of the transmission shaft, a center bearing is installed in the through hole, the transmission shaft penetrates through the center bearing and is close to one side of the first transmission chain wheel, and the base extends upwards to form the protruding part. Mounting holes for fixing the base are formed in the bottom plate on the two sides of the protruding part, and the base is fixedly mounted on a filter press fixing part through the mounting holes.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal slime water treatment system equipment, in particular to an automatic plate pulling system for a filter press capable of eliminating shaft vibration. Background Art

[0002] Yanzishan Coal Preparation Plant uses filter press to process fine coal slime. The filter press mainly includes frame, filter plate, filter cloth, clamping device, feeding system, drainage system and electrical control system. The electrical control system includes automatic plate pulling system, which realizes the automatic operation of filter plate and improves the working efficiency and automation degree of filter press.

[0003] During the use of the filter press, the filter plate may loosen and leak oil; the head plate filter plate may detach from the slide and fall off; the automatic plate pulling system may break or get stuck, and even the sprocket keyway of the automatic plate pulling system may be damaged or the drive shaft may break.

[0004] The operation process of the automatic plate pulling system of the filter press: The automatic plate pulling system includes a frequency conversion motor 6 (M) and a reducer 7, a plate pulling trolley 8, a trolley driving sprocket 2 4, a trolley driving sprocket 3 5, a transmission chain 9, etc. Under the control of the PLC, the frequency conversion motor 6 rotates, driving the transmission sprocket 1 3 to rotate, and the transmission shaft 1 and the transmission sprocket 1 3, the trolley driving sprocket 2 4, and the trolley driving sprocket 3 5 rotate synchronously, and then the plate pulling trolley 8 is driven by the transmission chain 9 to complete the plate pulling action. In addition to program control, manual control can also be used to control the forward, stop, and backward actions during the plate pulling process at any time to ensure smooth unloading. Each filter press has a total of 78 filter plates, 6 plates per group, and each cycle is completed by 13 times of plate pulling.

[0005] From the above process, we can know that the automatic plate pulling system is controlled by a variable frequency motor. During the process of pulling the plate, the sprocket will rotate forward and reverse continuously, causing the drive shaft to switch and bear torque in two directions continuously. After the strength reaches a certain limit, the shaft will break and the sprocket keyway will be damaged. Through observation during the unloading and plate pulling process of the filter press, once there is a slight chain jam, it is found that due to the small diameter of the drive shaft and the long length, the diameter of the filter press drive shaft is generally 50mm, and the drive shaft will vibrate slightly during the process of pulling the plate by the plate pulling trolley.

[0006] After the trolley drive chain breaks or gets stuck, observe the drive chain break interface, which is usually one side that breaks or gets stuck. It is found that the cause of the chain break is that the drive chains on both sides are not running synchronously after the drive shaft vibrates.

[0007] When the keyway is damaged or the drive shaft breaks, it is found that the sprocket keyway mating surface is damaged, and the drive shaft is broken at the mating part between the sprocket and the drive shaft.

[0008] In view of the great safety hazards of coal slime water treatment equipment and the frequent failures in production, the coal preparation plant needs to carry out technical transformation of the filter press of coal slime water treatment equipment, complete the recovery of coal slime and the reuse of coal washing water, so that the coal slime water can reach the first-level closed-loop circulation and ensure the smooth production of the whole plant. Utility Model Content

[0009] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide an automatic plate pulling system for a filter press that eliminates shaft vibration, which is used to solve the problem of drive shaft breakage, chain breakage and chain jamming caused by slight vibration of the drive shaft during the operation of the filter press.

[0010] The utility model is realized by adopting the following technical solutions:

[0011] The invention discloses an automatic plate pulling system for a filter press for eliminating shaft vibration, comprising a transmission shaft, wherein two ends of the transmission shaft are respectively fixedly connected to a trolley driving sprocket two and a trolley driving sprocket three, a transmission sprocket one is fixedly installed in the middle, and further comprising a tile seat, wherein the tile seat comprises a base, and a protrusion is extended upward from the base, and the protrusion has a through hole along the axial direction of the transmission shaft, a center bearing is installed inside the through hole, the center bearing passes through the transmission shaft and is arranged on a side close to the transmission sprocket one, mounting holes for fixing the tile seat are arranged on the base on both sides of the protrusion, and the base is installed on the fixed part of the filter press through the mounting holes.

[0012] When in use, the variable frequency motor in the automatic plate pulling system controls the forward and reverse rotation of the transmission shaft. Since the shoe seat is fixed on the fixed part of the filter press, the shaft vibration caused by the excessively large aspect ratio during the forward and reverse rotation of the transmission shaft is prevented.

[0013] Further preferably, the aspect ratio of the transmission shaft can be reduced by increasing the diameter of the transmission shaft, and the diameter of the transmission shaft is 65 mm.

[0014] Further preferably, the connection strength between the sprocket and the transmission shaft can be increased, and the transmission sprocket and the transmission shaft are connected via a double keyway.

[0015] Further preferably, it also includes an L-type connecting plate, the upper surface of which is connected to the base via a mounting hole, and the side surface is fixed to the fixing part of the filter press.

[0016] The utility model has a scientific tooling design and a simple structure, and can significantly solve the problem of transmission shaft vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 The utility model is represented by a schematic diagram of the structure.

[0020] Figure 2 It shows the schematic diagram of the tile seat structure.

[0021] Figure 3 Schematic diagram of filter press.

[0022] In the figure: 1-transmission shaft, 2-tile seat, 21-protrusion, 22-base, 23-center bearing, 3-transmission sprocket one, 4-trolley driving sprocket two, 5-trolley driving sprocket three, 6-frequency conversion motor, 7-reducer, 8-plate pulling trolley, 9-transmission chain, 10-filter press fixing part, 11-L connecting plate. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0027] The invention discloses an automatic plate pulling system for a filter press for eliminating shaft vibration, comprising a transmission shaft 1, wherein two ends of the transmission shaft 1 are respectively fixedly connected to a trolley driving sprocket 2 4 and a trolley driving sprocket 3 5, a transmission sprocket 3 is fixedly installed in the middle, and the tile seat 2 comprises a base 22, a protrusion 21 is extended upward from the base 22, the protrusion 21 has a through hole along the axial direction of the transmission shaft 1, a center bearing 23 is installed inside the through hole, the center bearing 23 passes through the transmission shaft 1 and is arranged on a side close to the transmission sprocket 3, mounting holes for fixing the tile seat 2 are arranged on the base 22 on both sides of the protrusion 21, and the base 22 is installed on the fixed part 10 of the filter press through the mounting holes.

[0028] The base 22 is the foundation of the tile seat 2 and is used to bear the load. The base 22 is made of steel and is connected to the bottom fixing part 10 of the filter press to ensure the stability of the transmission shaft 1.

[0029] The center bearing 23 is one of the supporting components on the transmission shaft 1 , and has the function of bearing torque and radial load, and can support the weight of the transmission shaft 1 and reduce vibration.

[0030] The protrusion 21 is a seat for the center bearing 23 to be installed. It is responsible for fixing and supporting the center bearing 23 to avoid shaking and misalignment, and adopts a steel structure.

[0031] When in use, the variable frequency motor 6 in the automatic plate pulling system controls the forward and reverse rotation of the transmission shaft 1. Since the shoe seat 2 is fixed on the filter press fixing part 10, the shaft vibration caused by the excessively large aspect ratio during the forward and reverse rotation of the transmission shaft 1 is prevented.

[0032] The aspect ratio of the transmission shaft can also be reduced by increasing the diameter of the transmission shaft 1, which is 65 mm. The original diameter of the transmission shaft 1 is 50 mm, and the diameter of the transmission shaft 1 in this embodiment is 65 mm, which increases the ability to withstand torque.

[0033] The connection strength between the sprocket and the transmission shaft 1 can be increased. The transmission sprocket 3 is connected to the transmission shaft 1 through a double keyway. The original keyway size is 14 mm, and the hub groove depth is 3.8 mm. The sprocket of this embodiment has a double keyway to increase the connection strength, the keyway is 18 mm, and the hub groove depth is 4.4 mm.

[0034] There may be an embodiment to increase the tensile strength of the chain. The original chain is 20A-1, with a pitch of 31.75 mm and a roller diameter of 19.05 mm. The chain of this embodiment is 28A-1, with a pitch of 44.45 mm and a roller diameter of 25.4 mm, which increases the tensile strength.

[0035] An embodiment may include an L connecting plate 11, which is inverted on the filter press fixing part 10, the upper surface of the inverted L connecting plate 11 is connected to the base 22 through a mounting hole, and the side surface is fixed to the filter press fixing part 10, so as to facilitate the replacement of the tile seat.

[0036] After using the utility model, it was found through observing the unloading and pulling plate process of the filter press that once there is a slight chain jam, the transmission shaft will not vibrate slightly during the pulling plate removal process due to the small diameter and long length of the transmission shaft.

[0037] Basically, there has been no chain breakage or jamming accident of the trolley transmission chain. The utility model prevents the transmission chains on both sides from running out of sync after the transmission shaft 1 vibrates.

[0038] There are basically no accidents such as keyway damage, drive shaft breakage, etc. that damage the matching parts of the sprocket and the drive shaft 1.

[0039] The main function of the shoe seat 2 in the utility model is to provide support for the transmission shaft 1 and fix the position of the transmission shaft 1. Compared with the prior art, it has the following beneficial effects:

[0040] 1. Keep the transmission shaft stable

[0041] The shoe seat can maintain the stable position of all rotating parts in the automatic plate pulling system by fixing and supporting the transmission shaft, and prevent the transmission shaft from shaking and deflecting when rotating at high speed.

[0042] 2. Improve mechanical transmission accuracy and stability

[0043] The shoe seat can effectively constrain the transmission shaft so that it can rotate according to the specified axial position, thereby improving the accuracy and stability of mechanical transmission.

[0044] 3. Reduce vibration and noise

[0045] Since the shoe seat can keep the position of the transmission shaft stable, it can effectively reduce the vibration and noise in the automatic plate pulling system, making the machine run more smoothly and without noise.

[0046] The above is only a specific implementation of the utility model, which enables those skilled in the art to understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. An automatic plate pulling system for a filter press for eliminating shaft vibration, comprising a transmission shaft (1), wherein two ends of the transmission shaft (1) are respectively fixedly connected to a trolley driving sprocket 2 (4) and a trolley driving sprocket 3 (5), and a transmission sprocket 1 (3) is fixedly installed in the middle, characterized in that: The invention also comprises a tile seat (2), wherein the tile seat (2) comprises a base (22), wherein a protrusion (21) extends upward from the base (22), wherein the protrusion (21) has a through hole along the axial direction of the transmission shaft (1), wherein a center bearing (23) is installed inside the through hole, wherein the center bearing (23) passes through the transmission shaft (1) and is arranged on a side close to a transmission sprocket (3), and mounting holes for fixing the tile seat (2) are arranged on the base (22) on both sides of the protrusion (21), and the base (22) is installed on the fixed part (10) of the filter press through the mounting holes.

2. The automatic plate pulling system for filter press for eliminating shaft vibration according to claim 1, characterized in that: The transmission shaft (1) has a shaft diameter of 65 mm.

3. The automatic plate pulling system for filter press to eliminate shaft vibration according to claim 1, characterized in that: The transmission sprocket wheel 1 (3) is connected to the transmission shaft (1) via a double keyway.

4. The automatic plate pulling system for filter press for eliminating shaft vibration according to any one of claims 1 to 3, characterized in that: It also comprises an L-type connecting plate (11), the upper surface of which is connected to the base (22) via a mounting hole, and the side surface of which is fixed to the filter press fixing part (10).

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