A filter press main beam deformation monitoring device

Abstract

The utility model relates to a filter press main beam deformation monitoring devices. The utility model discloses at least one mobile support structure, set up in the horizontal direction one side of any one or two main beams, mobile rack, the swing joint is in the mobile support structure, and along the first direction removes, connecting rod mechanism, set up in the mobile rack, including first connecting rod, second connecting rod and third connecting rod, wherein, first connecting rod's one end is hinged with mobile rack, first connecting rod's other end is hinged with second connecting rod's one end, and after second connecting rod's other end is hinged with third connecting rod's one end, along the second direction sliding connection is in mobile rack, and third connecting rod's other end swing contact is in the side end face of main beam along the second direction, counterweight, and hang the connection between first connecting rod's other end and second connecting rod's one end, inductive device, set up in counterweight one side. The utility model can in the process of filter press equipment operation, real -time monitoring main beam's deformation.

Description

Technical Field

[0001] This utility model relates to the field of filtration machinery and equipment technology, and in particular to a deformation monitoring device for the main beam of a filter press. Background Technology

[0002] Filter presses are widely used in solid-liquid separation processes. (Refer to...) Figure 3 As shown, the frame 7 is equipped with a main beam 6, a movable pressure plate 71, a thrust plate 72, a pressing cylinder 73, filter plates, and diaphragm plates 74. The pressing cylinder 73 pushes the movable pressure plate 71 to press against the filter plates. The filter plates are suspended on two parallel main beams 6. The filter plates and diaphragm plates 74 are installed in pairs to form a closed filter chamber. Filter cloths are installed on both sides. The thrust plate feeds the material into the closed filter chamber, where it is then pressed by the diaphragm plates into a mud cake that falls off. In engineering practice, the main beam, as a key component for load bearing and guidance, bears the tension of the filter plate assembly, the tension of the hydraulic cylinder, and the superposition of counterweight, friction, and impact loads during operation. The main beam is typically quite long, around 10m. After long-term service, the main beam is prone to bending deformation (field practice has shown that this deformation mainly occurs along the direction parallel to the horizontal plane, see reference...). Figure 7 As shown in the figure, this can lead to problems such as sluggish operation of the filter plate, guide misalignment, uneven stress on the filter cloth, and seal failure. In severe cases, it can cause shutdown accidents, affecting equipment safety and processing efficiency.

[0003] Therefore, there is an urgent need to provide a filter press main beam deformation monitoring device that can monitor the deformation of the main beam in real time during the operation of the filter press equipment and promptly remind users when the deformation of the main beam exceeds the threshold, so as to ensure the reliable operation of the filter press equipment. Summary of the Invention

[0004] Therefore, this utility model provides a filter press main beam deformation monitoring device, which can monitor the deformation of the main beam in real time during the operation of the filter press equipment, and can promptly remind the user when the deformation of the main beam exceeds the threshold, so as to ensure the reliable operation of the filter press equipment.

[0005] To solve the above-mentioned technical problems, this utility model provides a deformation monitoring device for the main beam of a filter press, applied to a filter press, wherein the filter press includes two main beams arranged in parallel, and the deformation monitoring device includes: At least one movable support structure is disposed on one side of the horizontal direction of any one or two of the main beams and extends along a first direction parallel to the direction of the main beams; A mobile frame is movably connected to the mobile support structure and moves along the first direction; A linkage mechanism, mounted on the movable frame, includes a first link, a second link, and a third link; wherein one end of the first link is hinged to the movable frame, the other end of the first link is hinged to one end of the second link, the other end of the second link is hinged to one end of the third link, and then slidably connected to the movable frame along a second direction; the other end of the third link movably contacts the side end face of the main beam along the second direction. A counterweight is suspended between the other end of the first connecting rod and one end of the second connecting rod. A sensing device is disposed on one side of the counterweight; wherein the deformation of the main beam can be converted into the movement of the counterweight in a third direction, namely the height direction, and the sensing device can detect when the counterweight reaches a predetermined height position, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0006] In one embodiment of this utility model, the movable support structure includes horizontal guide rails arranged parallel to the main beam, and the bottom of the movable frame is provided with traveling wheels that cooperate with the horizontal guide rails.

[0007] In one embodiment of this utility model, a first pin is provided between the other end of the first connecting rod and one end of the second connecting rod.

[0008] In one embodiment of this utility model, a connecting plate is connected between the two ends of the first pin and the counterweight.

[0009] In one embodiment of this utility model, a second pin is provided between the other end of the second connecting rod and one end of the third connecting rod, and the second pin is slidably connected to the movable frame.

[0010] In one embodiment of this utility model, a horizontal guide groove is provided on the mobile frame, and the second pin is slidably connected in the horizontal guide groove.

[0011] In one embodiment of this utility model, the other end of the third connecting rod is connected to a roller, and the roller makes rolling contact with the side end face of the main beam along the second direction.

[0012] In one embodiment of this utility model, a connecting rod is provided between the sensing device and the mobile frame, and the counterweight includes a counterweight plate or a counterweight block.

[0013] In one embodiment of this utility model, the sensing device includes an inductive switch or a photoelectric sensor.

[0014] In one embodiment of this utility model, a controller connected to the sensing device is also included. The controller is connected to an alarm device, which triggers an alarm when the sensing device senses the counterweight.

[0015] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: The filter press main beam deformation monitoring device of this utility model converts the bending deformation of the main beam into the displacement of the counterweight in the height direction through the linkage of the moving frame, linkage mechanism, rollers and counterweight. Combined with a sensing device to collect signals in real time, continuous monitoring can be achieved during the operation of the filter press without the need for shutdown maintenance or manual measurement. This significantly improves the real-time performance and reliability of the detection, extends the lifespan of the main beam and the entire machine, and improves the continuous operation efficiency and reliability of the filter press. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the main structure of the filter press main beam deformation monitoring device of this utility model.

[0018] Figure 2 This is a side view of the deformation monitoring device for the main beam of the filter press according to this utility model.

[0019] Figure 3 This is a structural schematic diagram of the filter press of this utility model.

[0020] Figure 4 This is a front view schematic diagram of the monitoring device of this utility model in conjunction with a filter press.

[0021] Figure 5 This is a side view of the monitoring device of this utility model in conjunction with a filter press.

[0022] Figure 6 This is a top view schematic diagram of the monitoring device of this utility model in conjunction with a filter press.

[0023] Figure 7 This is a schematic diagram of the deformation of the main beam of this utility model.

[0024] Explanation of reference numerals in the instruction manual: 1. Movable support structure; 11. Horizontal guide rail; 2. Mobile frame; 21. Wheels; 22. Horizontal guide groove; 3. Linkage mechanism; 31. First link; 32. Second link; 33. Third link; 34. First pin; 35. Second pin; 36. Roller; 4. Counterweights; 41. Connecting plates; 5. Sensing device; 51. Connecting rod; 6. Main beam; 7. Frame; 71. Movable pressure plate; 72. Thrust plate; 73. Pressing cylinder; 74. Filter plate and diaphragm plate. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0026] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0027] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0028] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.

[0029] Reference Figure 1 , Figure 2 As shown, this utility model discloses a deformation monitoring device for the main beam of a filter press, applied to a filter press. The filter press includes two parallel main beams 6, and the deformation monitoring device includes: At least one movable support structure 1 is disposed on one side of the horizontal direction of any one or two main beams 6 and extends in a first direction parallel to the direction of the main beam 6; The mobile frame 2 is movably connected to the mobile support structure 1 and moves along the first direction; The linkage mechanism 3, mounted on the movable frame 2, includes a first link 31, a second link 32, and a third link 33; wherein, one end of the first link 31 is hinged to the movable frame 2, the other end of the first link 31 is hinged to one end of the second link 32, the other end of the second link 32 is hinged to one end of the third link 33, and then slidably connected to the movable frame 2 along the second direction; the other end of the third link 33 movably contacts the side end face of the main beam 6 along the second direction. The counterweight 4 is suspended between the other end of the first connecting rod 31 and one end of the second connecting rod 32. A sensing device 5 is disposed on one side of the counterweight 4; wherein, the deformation of the main beam 6 can be converted into the movement of the counterweight 4 in a third direction, namely the height direction, and the sensing device 5 can sense when the counterweight 4 reaches a predetermined height position, and the first direction, the second direction and the third direction are perpendicular to each other.

[0030] Understandably, the slight lateral deflection of the main beam 6 is converted into the vertical displacement of the counterweight 4 through the linkage mechanism 3, resulting in high detection sensitivity. An alarm is triggered when the counterweight 4 reaches the predetermined height, avoiding human error and improving detection accuracy.

[0031] In one embodiment, the movable support structure 1 includes two horizontal guide rails 11 arranged parallel to the main beam 6. The bottom of the movable frame 2 is equipped with traveling wheels 21 (connected to drive motors) that cooperate with the horizontal guide rails 11. The movable support structure 1, using traveling wheels 21 in conjunction with the horizontal guide rails 11, has an overall mechanical transmission configuration, is compact, and occupies little space. This device can be directly installed on the side of the existing main beam 6 of the filter press without requiring large-scale modifications to the main beam 6, exhibiting good versatility and ease of installation.

[0032] In one embodiment, a first pin 34 is provided between the other end of the first connecting rod 31 and one end of the second connecting rod 32.

[0033] In one embodiment, the two ends of the first pin 34 are connected to the counterweight 4 by a connecting plate 41.

[0034] In one embodiment, a second pin 35 is provided between the other end of the second link 32 and one end of the third link 33, and the second pin 35 is slidably connected to the mobile frame 2.

[0035] In one embodiment, the mobile frame 2 is provided with a horizontal guide groove 22, and the second pin 35 is slidably connected in the horizontal guide groove 22.

[0036] In one embodiment, the other end of the third link 33 is connected to a roller 36, which makes rolling contact with the side end face of the main beam 6 along the second direction.

[0037] In one embodiment, a connecting rod 51 is provided between the sensing device 5 and the mobile frame 2, and the counterweight 4 includes a counterweight plate or a counterweight block.

[0038] In one embodiment, the sensing device 5 includes an inductive switch or a photoelectric sensor.

[0039] In one embodiment, a controller (such as a PLC) connected to the sensing device 5 is also included. The controller is connected to an alarm device (such as a buzzer or an alarm light). When the sensing device 5 senses the counterweight 4, the alarm device is triggered. The buzzer can emit an audible alarm when the sensing signal is triggered, and the alarm light can emit a visual warning when triggered, thereby intuitively indicating to the operator that the main beam 6 has undergone excessive deformation. This improves the warning effect at the operating site and prevents the abnormal working condition from persisting due to operator negligence.

[0040] Furthermore, the controller can also be connected to an electrical control cabinet or a human-machine interface (HMI) to record and display deformation alarm information.

[0041] Reference Figures 4 to 7 As shown, the working principle is as follows: The drive motor drives the traveling wheels 21 to move forward along the traveling guide rail, causing the mobile frame 2 to move in a direction parallel to the main beam 6. The rollers 36 set on the mobile frame 2 maintain rolling contact with the side end face of the main beam 6. Under the action of gravity, the counterweight 4 ensures that the rollers 36 are always pressed against the surface of the main beam 6 through the linkage of the first link 31, the second link 32, and the third link 33.

[0042] During the long-term operation of the filter press, the main beam 6 gradually bends and deforms due to stress. When the main beam 6 shifts horizontally, the roller 36 rolls on the surface of the main beam 6 and drives the third connecting rod 33 to swing left and right. Through the transmission action of the first pin 34 and the second pin 35, the counterweight 4 moves up and down in the height direction. As the deformation of the main beam 6 increases, the upward movement of the counterweight 4 gradually increases. When the counterweight 4 moves to the predetermined position, the sensing device 5 is triggered and outputs a signal.

[0043] After receiving the signal from the sensing device 5, the controller can drive the alarm device to issue a prompt, thereby realizing online detection and alarm of the deformation status of the main beam 6. Through real-time monitoring and alarm, it can prevent the continuous development of bending deformation of the main beam 6, which may lead to problems such as filter plate misalignment, uneven stress on the filter cloth, or equipment shutdown, reduce maintenance frequency, extend the service life of the main beam 6 and the entire machine, and improve the continuous operation efficiency and reliability of the filter press.

[0044] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for monitoring the deformation of the main beam of a filter press, characterized in that, The device is applied to a filter press, which includes two parallel main beams (6), and the deformation monitoring device includes: At least one movable support structure (1) is disposed on one side of the horizontal direction of any one or two of the main beams (6) and extends in a first direction parallel to the direction of the main beam (6); The mobile frame (2) is movably connected to the mobile support structure (1) and moves along the first direction; The linkage mechanism (3) is mounted on the movable frame (2) and includes a first link (31), a second link (32) and a third link (33); wherein, one end of the first link (31) is hinged to the movable frame (2), the other end of the first link (31) is hinged to one end of the second link (32), the other end of the second link (32) is hinged to one end of the third link (33) and then slidably connected to the movable frame (2) along the second direction, and the other end of the third link (33) is movably in contact with the side end face of the main beam (6) along the second direction; The counterweight (4) is suspended between the other end of the first connecting rod (31) and one end of the second connecting rod (32); A sensing device (5) is disposed on one side of the counterweight (4); wherein the deformation of the main beam (6) can be converted into the movement of the counterweight (4) in the third direction, i.e. the height direction, and can be sensed by the sensing device (5) when the counterweight (4) reaches the predetermined height position, the first direction, the second direction and the third direction are perpendicular to each other.

2. The filter press main beam deformation monitoring device according to claim 1, characterized in that, The mobile support structure (1) includes a horizontal guide rail (11) arranged parallel to the main beam (6), and the bottom of the mobile frame (2) is provided with a traveling wheel (21) that cooperates with the horizontal guide rail (11).

3. The filter press main beam deformation monitoring device according to claim 1, characterized in that, A first pin (34) is provided between the other end of the first connecting rod (31) and one end of the second connecting rod (32).

4. The filter press main beam deformation monitoring device according to claim 3, characterized in that, The two ends of the first pin (34) are connected to the counterweight (4) by connecting plates (41).

5. The filter press main beam deformation monitoring device according to claim 1, characterized in that, A second pin (35) is provided between the other end of the second link (32) and one end of the third link (33), and the second pin (35) is slidably connected to the mobile frame (2).

6. The filter press main beam deformation monitoring device according to claim 5, characterized in that, A horizontal guide groove (22) is provided on the mobile frame (2), and the second pin (35) is slidably connected in the horizontal guide groove (22).

7. The filter press main beam deformation monitoring device according to claim 1, characterized in that, The other end of the third link (33) is connected to a roller (36), which makes rolling contact with the side end face of the main beam (6) along the second direction.

8. The filter press main beam deformation monitoring device according to claim 1, characterized in that, A connecting rod (51) is provided between the sensing device (5) and the mobile frame (2), and the counterweight (4) includes a counterweight plate or a counterweight block.

9. The filter press main beam deformation monitoring device according to claim 1, characterized in that, The sensing device (5) includes an inductive switch or a photoelectric sensor.

10. The filter press main beam deformation monitoring device according to claim 1, characterized in that, It also includes a controller connected to the sensing device (5), the controller being connected to an alarm device, which triggers the alarm device when the sensing device (5) senses the counterweight (4).

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