Vacuum device for net part of paper machine

Abstract

The utility model relates to the technical field of paper machines, in particular to a paper machine net portion vacuum device which comprises a plurality of supporting rollers, a net driving roller, a vacuum box, a net guiding roller and a forming net, the supporting rollers, the net driving roller, the vacuum box and the net guiding roller are in transmission connection through the forming net, the net driving roller is used for transmitting power of rotation of the forming net, the supporting rollers are rubber rollers, and the supporting rollers are connected with the forming net. According to the utility model, an original stainless steel outer surface is replaced by a rubber roller, so that the damage to a transmission part in a long-time use process can be reduced, the transmission part can be further convenient to provide transmission power more effectively, the transmission efficiency is improved, and the service life of the transmission part is prolonged. And the consumed cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking machines, in particular to a vacuum device for a net portion of a papermaking machine. Background Art

[0002] The vacuum roller is an important component of papermaking machinery. The end roller located in the wet section is usually made of stainless steel. Its diameter, surface width, wall thickness, opening rate, opening diameter and other parameters will be designed according to the specific usage. The vacuum roller may encounter some faults during use. For example, local scratches often occur due to the impact of materials. Traditional solutions mainly include repair welding or brush plating. However, the thermal stress generated by high temperature during repair welding cannot be completely eliminated, which can easily cause material damage and cause bending or breaking of components. Brush plating is limited by the coating thickness and is easy to peel off. The original vacuum roller has a vacuum pumping power of 160 kilowatts and a transmission power of 185 kilowatts, with high energy consumption. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a paper machine mesh vacuum device, which uses a rubber roller to replace the original stainless steel outer surface, thereby reducing damage to the transmission during long-term use, further facilitating the transmission to provide transmission power more effectively and reducing the cost.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vacuum device for the mesh part of a papermaking machine, comprising a supporting roller, a mesh driving roller, a vacuum box, a mesh guide roller and a forming mesh, wherein the supporting roller, the mesh driving roller, the vacuum box and the mesh guide roller are connected through a forming mesh transmission, the mesh driving roller is used to transmit the power for rotating the forming mesh, the supporting roller is a rubber roller, a plurality of supporting rollers are provided, the outer side walls of the supporting rollers are in contact with the forming mesh, and the mesh driving roller and the mesh guide roller are located on different sides of the forming mesh.

[0007] Preferably, it also includes a guide roller, a support roller, a mesh driving roller, a vacuum box, a mesh guide roller and a guide roller, which are connected through a forming mesh transmission, and the guide roller and the mesh guide roller are located on different sides of the forming mesh.

[0008] Preferably, the diameter of the mesh driving roller is greater than 0.5 m.

[0009] Preferably, the diameter of the guide roller is greater than 0.5 m.

[0010] Preferably, a plurality of vacuum boxes are provided.

[0011] Preferably, the vacuum box has a vacuuming power of less than 160 kilowatts.

[0012] Preferably, the rotational power provided for driving the mesh roller is less than 185 kilowatts.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a paper machine wire vacuum device, which has the following

[0015] Beneficial effects:

[0016] The vacuum device of the paper machine mesh part adopts the support roller in the form of a rubber roller to replace the original vacuum roller style, and cooperates with a vacuum box for support. The driving mesh roller transmits the power to drive the forming mesh to move, and the transmission part is tightened by the guide mesh roller. A larger diameter style of the driving mesh roller and the guide mesh roller can be selected to provide a better support environment to reduce damage to the support roller. The rubber roller style replaces the original stainless steel outer surface, which can reduce the damage to the transmission part during long-term use, and further facilitates the transmission part to provide transmission power more effectively. This cooperation method can reduce the power of the vacuum box and the driving mesh roller, and reduce the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] Markings in the attached drawings: 1, support roller; 2, mesh driving roller; 3, vacuum box; 4, mesh guide roller; 5, guide roller; 6, forming mesh. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example:

[0021] See also Figure 1A vacuum device for a paper machine net part includes a support roller 1, a net driving roller 2, a vacuum box 3, a net guide roller 4 and a forming net 6. The support roller 1, the net driving roller 2, the vacuum box 3 and the net guide roller 4 are connected through the forming net 6. The net driving roller 2 is used to transmit the power for the forming net 6 to rotate. The support roller 1 is a rubber roller. The support roller 1 is provided with a plurality of support rollers. The outer side walls of the support roller 1 are all in contact with the forming net 6. The net driving roller 2 and the net guide roller 4 are located on different sides of the forming net 6. The net driving roller 2 is connected to a driving device that provides power. The forming net 6 is a mesh formed by winding and welding steel wires. It is in a ring mesh shape. Part of the water can flow down through the forming net 6. By using the support roller 1 It is in the form of a rubber roller, replacing the original vacuum roller style, and is supported by the vacuum box 3. The mesh driving roller 2 transmits the power to drive the forming mesh 6 to move, and is tightened and transmitted through the mesh guide roller 4. A style with a larger diameter of one of the mesh driving roller 2 and the mesh guide roller 4 can be selected to provide a better supporting environment to reduce damage to the support roller 1. The rubber roller style replaces the original stainless steel outer surface, which can reduce damage to the transmission during long-term use, and further facilitates the transmission to provide more effective transmission power. This combination can reduce the power of the vacuum box 3 and the driving mesh roller 2, and reduce the cost.

[0022] The vacuum device further comprises a guide roller 5, a support roller 1, a mesh driving roller 2, a vacuum box 3, a mesh guide roller 4 and a guide roller 5 which are connected by a transmission through a forming mesh 6, and the guide roller 5 and the mesh guide roller 4 are located on different sides of the forming mesh 6. Through the arrangement of the guide roller 5, a steering effect of the forming mesh 6 between the mesh guide roller 4 and the support roller 1 can be provided, so that the direction of transmission can be changed conveniently, which is conducive to providing a better tensioning effect at the transmission location.

[0023] As one of the embodiments, the diameter of the mesh driving roller 2 is greater than 0.5 m. By selecting a diameter greater than 0.5 m, a greater rotation effect at the transmission point can be provided to provide a better support effect.

[0024] As another embodiment, the diameter of the guide roller 4 is greater than 0.5m. By selecting a support portion with a diameter greater than 0.5 for the guide roller 4, a better support effect can be provided, and a larger covering area can be provided at the support portion, thereby improving the stability of the forming net 6 at the rotation point.

[0025] As another embodiment, a plurality of vacuum boxes 3 are provided, preferably five vacuum boxes 3. Through the provision of a plurality of vacuum boxes 3, the forming net 6 can be conveniently sucked to reduce the loosening of the forming net 6, and the vacuum boxes 3 can be installed to different positions supporting the forming net 6.

[0026] As another embodiment, the vacuum box 3 has a vacuuming power of less than 160 kilowatts. The vacuum box 3 is selected to be a smaller power model, and cooperates with the support roller 1 to support the forming net 6, which can effectively provide the effect of supporting the forming net 6.

[0027] As another embodiment, the rotational power provided for the mesh driving roller 2 is less than 185 kilowatts, and the mesh driving roller 2 is preferably driven by a motor, and the mesh driving roller 2 is driven to rotate via a transmission device such as a chain transmission. The output power provided can be selected to be less than 185 kilowatts. By selecting a model of the mesh driving roller 2 with a smaller rotational power, the transmission effect can be effectively achieved and energy consumption can be reduced.

[0028] When in use, the support roller 1, the mesh driving roller 2, the vacuum box 3, the mesh guide roller 4, the guide roller 5 and the forming mesh 6 are installed at the paper transfer processing site.

[0029] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0030] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0031] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0032] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vacuum device for a paper machine wire section, characterized in that: The invention comprises a supporting roller (1), a mesh driving roller (2), a vacuum box (3), a mesh guide roller (4) and a forming mesh (6); the supporting roller (1), the mesh driving roller (2), the vacuum box (3) and the mesh guide roller (4) are connected by transmission via the forming mesh (6); the mesh driving roller (2) is used to transmit the power for rotating the forming mesh (6); the supporting roller (1) is a rubber roller; a plurality of supporting rollers (1) are provided; the outer side walls of the supporting rollers (1) are all in contact with the forming mesh (6); the mesh driving roller (2) and the mesh guide roller (4) are located on different sides of the forming mesh (6).

2. A paper machine wire vacuum device according to claim 1, characterized in that: The invention also comprises a guide roller (5), a support roller (1), a mesh driving roller (2), a vacuum box (3), a mesh guide roller (4) and a guide roller (5), which are connected by transmission via a forming mesh (6), and the guide roller (5) and the mesh guide roller (4) are located on different sides of the forming mesh (6).

3. A wire vacuum device for a paper machine according to claim 1, characterized in that: The diameter of the mesh driving roller (2) is greater than 0.5 m.

4. A wire vacuum device for a paper machine according to claim 1, characterized in that: The diameter of the guide roller (4) is greater than 0.5 m.

5. A wire vacuum device for a paper machine according to claim 1, characterized in that: A plurality of vacuum boxes (3) are provided.

6. A wire vacuum device for a paper machine according to claim 1, characterized in that: The vacuum box (3) has a vacuum pumping power of less than 160 kilowatts.

7. A wire vacuum device for a paper machine according to claim 1, characterized in that: The rotational power provided for driving the mesh roller (2) is less than 185 kilowatts.

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