RU2801807C1 - Filter plate handle and filter plate for filter press - Google Patents

Abstract

FIELD: filter presses.

SUBSTANCE: filter plate handle is proposed, in which the plug shaft extends from two side surfaces of the fixed plate, the plug shaft being permanently connected to the fixed plate. The portions extending from said two sides of the fixed plate are a first section and a second section, respectively, wherein said first section of the plug shaft can be inserted into the filter plate mounting hole by an interference fit to ensure accurate alignment and assembly with the filter plate. The specified second section of the plug shaft contains a wear-resistant block, which is made with the possibility of contact with the main beam and provides sliding support. The fixed plate has at least two bolt holes and is fixedly connected to the filter plate with at least two bolts for additional fastening. The filter plate handle provides primary attachment by an interference fit between the first portion of the insert shaft and the filter plate, and secondary attachment by bolts, and the insert shaft maintains an interference fit with the filter plate.

EFFECT: ensuring accurate alignment and the presence of handles on both sides of the filter plate.

9 cl, 8 dwg

Description

[0001] This application claims priority from Chinese Patent Application No. 202210534975.7 entitled "FILTER PLATE HANDLE AND FILTER PLATE FOR FILTER PRESS", filed with the China National Intellectual Property Administration on May 17, 2022, the entire substance of which is incorporated herein by links.

FIELD OF TECHNOLOGY

[0002] This application relates to the field of filter presses and, in particular, to the handle of the filter plate. In addition, this application also relates to a filter plate for a filter press.

BACKGROUND OF THE INVENTION

[0003] The filter plate is the main filter element of the filter press, the filter plate handles are installed on two sides of the filter, respectively, the main beams on these two sides are configured to support the filter plate handles on these two sides, and several filter plates are located on the main beams. The gripping device of the filter press plates is configured to grip the filter plates to ensure their movement along the main beams.

[0004] A prior art filter plate handle is formed by joining two plate-like structures perpendicular to each other, with one plate fixed to the side surface of the filter plate with two or three bolts. Due to the gap between the bolt holes, the handles installed on both sides cannot be perfectly aligned, which can cause the handles of the filter plate to wobble against it.

[0005] For those skilled in the art, ensuring accurate alignment and placement of handles on both sides of the filter plate is a technical challenge that needs to be addressed at this time.

SUMMARY OF THE INVENTION

[0006] The present invention provides a filter plate handle that provides a solution to the problem that the filter plate handle cannot be precisely aligned and installed, and the specific solution is as follows:

[0007] The filter plate handle comprises a fixed plate and an insert shaft that are fixedly connected to each other, the insert shaft extending from two side surfaces of the fixed plate, respectively, with the first section of the insert shaft inserted into the filter plate mounting hole by an interference fit; the second section of the insert shaft contains a wear-resistant block, which is made with the possibility of contact with the main beam, and

[0008] the fixed plate has at least two bolt holes and is fixedly connected to the filter plate by at least two bolts.

[0009] In one embodiment, the insertion shaft is a stepped shaft, the outer diameter of which decreases in a stepped manner from the middle to the two ends, respectively.

[0010] In one embodiment, the insert shaft comprises a first stepped section and a second stepped section, wherein the second stepped section is in insertion with the fixed plate by an interference fit, and the first stepped section is inserted into the filter plate by an interference fit.

[0011] In one embodiment, the insert shaft includes a third stepped portion configured to interact with the platen gripper.

[0012] In one embodiment, said third stepped portion is in the form of a cylinder or cuboid.

[0013] In one embodiment, the wear block is hinged to the stub shaft main body portion.

[0014] In one embodiment, at least two grooves are formed on the outer circumference of the insert shaft, each of which clamps a retaining ring that is configured to restrict movement of the wear block in the axial direction.

[0015] In one embodiment, the fixed platen is a metal plate and the insert shaft is a metal shaft.

[0016] According to the present invention, there is provided a filter plate for a filter press, which comprises a filter plate handle according to any of the above embodiments.

[0017] According to the present invention, a filter plate handle is provided, wherein the plug shaft extends from two side surfaces of the fixed plate and is fixedly connected to the fixed plate, and the parts extending from the two side surfaces of the fixed plate are the first section and the second section, respectively, and the specified first the insert shaft portion can be inserted into the filter plate mounting hole by an interference fit so that accurate alignment with the filter plate is ensured; wherein said second section of the insert shaft comprises a wear block which is configured to contact the main beam, the wear block providing sliding support; wherein the fixed plate has at least two bolt holes and is fixedly connected to the filter plate by at least two bolts so that additional fastening is provided; The handle of the filter plate according to the invention provides a primary attachment by means of an interference fit between said first section of the insert shaft and the filter plate, and provides a secondary attachment by means of bolts, and the insert shaft provides an interference fit with the filter plate so that accurate alignment and installation of the handles is ensured. on both sides of the filter plate.

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate embodiments of the present invention or prior art, the following briefly describes the drawings, which are referred to when describing embodiments or prior art. Obviously, the drawings in the following description are only some examples of the present invention, and other drawings can be obtained by those skilled in the art based on the drawings presented without any creative effort.

[0019] FIG. 1 is a perspective view of a particular embodiment of a filter plate handle according to the present invention;

[0020] FIG. 2 is a front view of a particular embodiment of a filter plate handle according to the present invention;

[0021] FIG. 3 is a plan view of a particular embodiment of a filter plate handle according to the present invention;

[0022] FIG. 4 is a left side view of a particular embodiment of a filter plate handle according to the present invention;

[0023] FIG. 5 is a right side view of a particular embodiment of a filter plate handle according to the present invention;

[0024] FIG. 6 is a front sectional view of a particular embodiment of a filter plate handle according to the present invention;

[0025] FIG. 7 is a front sectional view of a particular embodiment of a filter plate handle according to the invention mounted on a filter plate, and

[0026] FIG. 8 is a sectional view of the insert shaft.

[0027] Item Number List

1 fixed plate;

2 insert shaft;

21 first stepped section;

22 second stepped section;

23 third stepped section;

24 groove;

25 main body section;

3 wear block;

4 retaining ring.

DETAILED DESCRIPTION OF EMBODIMENTS

[0028] It is an object of this invention to provide a filter plate handle designed to be double-braced to improve stability and ensure accurate alignment with the neck by an interference fit.

[0029] In order for those skilled in the art to better understand the technical solution of the present invention, the filter plate handle according to the present invention will be described in detail below in conjunction with the drawings and specific embodiments.

[0030] Referring to FIGS. 1-5, the present invention provides a filter plate handle that comprises a fixed plate 1 and a plug shaft 2 that are fixedly connected to each other, the fixed plate 1 and the plug shaft 2 being held as a unit in time of use, and there is no relative wobble and movement between them. The insert shaft 2 extends from two side surfaces of the fixed plate 1, respectively, forming two projecting parts, which are made as the first section and the second section, respectively; wherein the insert shaft 2 may be of a single structure or have the configuration of a two-piece split structure, and the two portions are fixed to the fixed plate 1 by welding in the case of a two-section split structure.

[0031] In figure 2, "I" denotes the specified first section, and "II" denotes the specified second section. In conjunction with Fig. 7, the insert shaft 2 according to the present invention is adapted to be inserted into a filter plate (the structure of the filter plate is designated A in Fig. 7), the first section of the insert shaft 2 is inserted into the filter plate mounting hole by an interference fit, and the second section extends away from the filter plate. The specified second section of the plug-in shaft 2 contains a wear-resistant block 3, which is made with the possibility of contact with the main beam (the design of the main beam is not shown in the drawings), at least one filter plate handle is made on two sides of the filter plate, respectively, and the location of at least two the main beams arranged in parallel are designed to support the handles of the filter plate so that the entire filter plate is supported. The direction of the main beam is perpendicular to the surface direction of the filter plate, the handles of the filter plate extending from the left and right of the filter plate are supported on the two main beams respectively, the wear block 3 is in contact with the main beam, and the filter plate is slidable along the length direction of the main beam ; and several filter plates can be placed on the main beam.

[0032] As shown in Fig. 1 and Fig. 7, the fixed plate 1 is provided with at least two bolt holes, each of which is suitably installed in each bolt hole, and the fixed plate 1 is fixedly connected to the filter plate by means of at least two bolts. Symbol "B" in Fig. 7 denotes bolts. The bolt holes in the fixed plate 1 can be plain holes or threaded holes with internal threads, and the corresponding threaded holes are made in the filter plate, the bolts protrude after passing through the bolt hole in the fixed plate 1 and enter the threaded connection with the threaded hole in the filter plate so that threaded fasteners are provided.

[0033] The filter plate handle of the present invention provides primary attachment by an interference fit with the first portion of the insert shaft 2, and provides secondary attachment by a two-bolt threaded connection so that the fixed connection between the entire filter plate handle and the filter plate is more stable. In addition, according to the present invention, an interference fit is maintained between the first section of the insert shaft 2 and the filter plate, the first section of the insert shaft 2 being used to form an accurate positioning, to ensure accurate alignment and installation of handles on the two sides of the filter plate and the absence of relative wobbling between the filter plate. plate and filter plate handle.

[0034] Based on the above solution, as shown in Fig.6, 7 and 8, the plug shaft 2 according to this invention is a stepped shaft. The outer diameter of the plug shaft 2 is not the same along the entire plug shaft, instead the outer diameter decreases in steps from the middle to the two ends, respectively, that is, the thickness in the middle is larger and the thickness at the two ends is thinner. Staggered sections mean that the outer diameters change abruptly, the outer diameters of each section are equal, thus forming a stepped surface with a sharp change in size at the junction between two stepped sections. In the preferred design according to the present invention, the plug shaft 2 is a solid shaft passing through the fixed plate 1.

[0035] As shown in FIG. 8, the insert shaft 2 according to the invention has a first stepped portion 21 and a second stepped portion 22, wherein the outer diameter of the first stepped portion 21 is smaller than the outer diameter of the second stepped portion 22, the second stepped portion 22 being in plug-in connection with the fixed plate 1 by an interference fit, wherein the first stepped portion 21 is inserted into the filter plate by an interference fit. Once the second stepped portion 22 is connected to the fixed plate 1 by an interference fit, it may also be secured by welding to improve integrity.

[0036] In addition, the insert shaft 2 according to the present invention comprises a third stepped portion 23, wherein the third stepped portion 23 is configured to interact with the plate gripper, and the portion between the third stepped portion 23 and the second stepped portion 22 is the main body portion 25 of the plug shaft 2. The outer diameter of the main portion 25 is the largest, and the outer diameter of the main portion 25 is greater than the outer diameter of the third stepped portion 23 and greater than the outer diameter of the second stepped portion 22. During manufacture, the third stepped portion 23 is engaged by two plate grippers on the left and right side, and the entire filter plate is moved by pulling the two handles of the filter plate.

[0037] Since the third stepped portion 23 is designed as a slab hook, the shape of the third stepped portion 23 is not particularly limited, and the third stepped portion 23 is in the form of a cylinder or a cuboid.

[0038] Based on any of the above technical solutions and combinations thereof, the wear block 3 according to the present invention is hinged to the main body portion 25 of the insert shaft 2, the main body portion 25 having a larger outer diameter, higher support strength, and is difficult to deform. The outer surface of the main portion 25 is a cylindrical surface, and the wear block 3 can be put on the outer surface of the main portion 25.

[0039] On the outer circumference of the plug shaft 2, at least two grooves 24 are formed, each of which is an annular groove and is formed around the outer circumference of the plug shaft 2, and these two grooves 24 are located on the main section 25, the retaining ring 4 is clamped on each groove 24, wherein the retaining ring 4 is configured to limit movement of the wear block 3 in the axial direction, wherein the wear block 3 is rotatable relative to the plug shaft 2 but cannot be moved in the axial direction.

[0040] In particular, the fixed plate 1 according to the present invention is a metal plate and the insert shaft 2 is a metal shaft, which are respectively manufactured by finishing machining to ensure dimensional accuracy. Compared to the prior art injection molded structure, these two structures have higher structural strength.

[0041] The present invention further provides a filter press filter plate that comprises a filter plate handle according to any of the above embodiments, wherein each filter press filter plate comprises at least two handles that are located on two opposite sides, respectively, with This ensures the above technical effects for the filter plate.

[0042] As described above for the disclosed embodiments, those skilled in the art may make or practice the invention. Various modifications to these embodiments are obvious to those skilled in the art. The general principles defined in this invention can be implemented in other embodiments without deviating from the essence and scope of this invention. Thus, the present invention is not limited to the embodiments disclosed herein, but has the widest scope according to the principle and novel features disclosed herein.

Claims (9)

1. The handle of the filter plate, containing a fixed plate (1) and an insert shaft (2), which are fixedly connected to each other, and the insert shaft (2) protrudes respectively from the two side surfaces of the fixed plate (1), and the first section of the insert shaft ( 2) is inserted into the mounting hole of the filter plate by an interference fit, and the second section of the insert shaft (2) contains a wear-resistant block (3), which is made with the possibility of contact with the main beam, while the fixed plate (1) has at least two holes for bolts and fixedly connected to the filter plate with at least two bolts. 2. The handle according to claim 1, in which the insert shaft (2) is a stepped shaft, the outer diameter of which decreases in a stepped manner from the middle to the two ends, respectively. 3. The handle according to claim 2, in which the insert shaft (2) comprises a first stepped section (21) and a second stepped section (22), wherein the second stepped section (22) is in a plug-in connection with the fixed plate (1) by fitting with interference fit, and the first stepped section (21) is inserted into the filter plate by an interference fit. 4. The handle according to claim 3, in which the insert shaft (2) comprises a third stepped section (23) which is configured to interact with the gripping device of the plate. 5. The handle according to claim 4, wherein the third stepped section (23) is in the form of a cylinder or cuboid. 6. The handle according to any one of paragraphs. 1-5, in which the wear block (3) is pivotally attached to the main body section (25) of the insert shaft (2). 7. The handle according to claim 6, in which at least two grooves (24) are made on the outer circumferential surface of the plug-in shaft (2), in each of which a retaining ring (4) is clamped, designed to limit the movement of the wear-resistant block (3) in the axial direction. 8. Handle according to claim 6, wherein the fixed plate (1) is a metal plate and the insert shaft (2) is a metal shaft. 9. Filter plate for the filter press, containing the handle of the filter plate according to any one of paragraphs. 1-8.