Papermaking equipment sealing water film cleaning assembly

Abstract

The invention discloses a papermaking equipment sealing water film cleaning assembly, which belongs to the technical field of papermaking equipment and consists of a main body and a driving device for driving the main body, the main body is composed of a pipe body, a sealing core shaft located in the pipe body and a core shaft sealing sleeve arranged outside the sealing core shaft in a sleeving mode. The mandrel sealing sleeve is sleeved with a sprayer rotating spindle, a flow channel is formed in the sealing mandrel, one end of the pipe body is connected with a high-pressure water connector, the end, away from the high-pressure water connector, of the pipe body is a water spraying position, and the flow channel penetrates through the high-pressure water connector, the sprayer rotating spindle and the water spraying position. Wherein a high-pressure sealing water film is arranged between the sealing core shaft and the core shaft sealing sleeve, a barrier is formed through the high-pressure sealing water film between the sealing core shaft and the core shaft sealing sleeve, and water vapor or moisture is prevented from entering other places in the pipe body through the barrier. According to the invention, the self-sealing of water and gas can be realized, so that the original mechanical sealing is replaced by high-pressure water sealing.

Description

Technical Field

[0001] The present invention relates to the technical field of papermaking equipment, and particularly relates to a cleaning mechanism for papermaking equipment, and more particularly to a sealing water film cleaning component for papermaking equipment. Background Art

[0002] Paper is the most commonly used item in our daily life. Whether it is reading, reading newspapers, writing, or painting, it is inseparable from paper. It is also indispensable in industrial, agricultural, and national defense industrial production. Papermaking technology, together with the compass, gunpowder, and printing technique, is known as the four great inventions of ancient Chinese science and technology, and is an outstanding contribution made by the Chinese people to the development of world science and culture. In the papermaking process, a paper machine is indispensable. A paper machine is a general term for a complete set of equipment with sectional linkage that forms a paper web, including main machines such as a headbox, a wire section, a press section, a dryer section, a calender, a reel, and a drive section, as well as auxiliary systems such as steam, water, vacuum, lubrication, and heat recovery. Among them, the wire section spreads the pulp on the wire cloth and drives the wire cloth to rotate in a cycle through a conveying device. The pulp is driven by the wire cloth through the press section and the drying section for forming.

[0003] However, after the pulp is formed, pulp fibers will still remain on the wire cloth. At this time, during the cyclic use of the wire cloth, it is easy to deteriorate the quality of the formed paper. The same situation will also occur in the felt. Therefore, during the papermaking process, it is necessary to clean the wire cloth or the felt, and a high-pressure water cleaning mechanism is required for cleaning the wire cloth or the felt. In order to prevent the components of the cleaning mechanism from being affected by moisture, the prior art generally only uses mechanical seals, such as using a spring seal as a sealing method.

[0004] The prior art CN 210066342 U discloses a cleaning mechanism for a wire cloth of a paper machine. The present utility model includes a frame, a guide roller, a wire cloth, and a spraying device. The spraying device includes a spraying water pipe and a high-pressure spray head, and further includes two groups of support components respectively arranged on both sides in the width direction of the wire cloth. Both ends of the spraying water pipe are respectively supported on the tops of the two groups of support components. A reciprocating motion mechanism for driving the spraying water pipe to reciprocate in the width direction of the wire cloth is arranged at the bottom end of the frame. One end of the guide roller passes through the outer wall of the frame and is fixedly connected with a transmission rod. A first transmission disk is fixedly connected to the end of the transmission rod away from the guide roller. A second transmission disk is connected to the reciprocating motion mechanism. A transmission belt is sleeved outside the first transmission disk and the second transmission disk. Through the above settings, the quality of the formed paper can be improved.

[0005] However, during the process of implementing the technical solution in the prior art, the applicant found that the following technical problems exist in the technical solution of the prior art:

[0006] When the cleaning mechanism sprays high-pressure fluid (usually high-pressure water) to clean the wire cloth or felt, it needs to move back and forth. At this time, due to mechanical fatigue or performance degradation of the mechanical seal, the cleaning mechanism is prone to water seepage due to insufficient sealing effect, resulting in the device being affected by moisture. Repairing or troubleshooting will cause production to be blocked and affect the cleaning effect or production efficiency.

[0007] Furthermore, the motor that drives the cleaning mechanism to move is also prone to failure due to moisture, thus affecting the working efficiency.

[0008] In addition, the smooth water outflow of the cleaning nozzle depends on the water pressure. If there is a short-term fluctuation in the water pressure, it will cause the water outflow of the cleaning nozzle to be stuck, thereby affecting the cleaning effect of the wire cloth or felt and thus affecting the production efficiency.

[0009] At the same time, the spraying components are often fastened with bolts. The moving cleaning mechanism is prone to causing the screws to loosen. If the bolts loosen and fall onto the wire cloth or felt conveying device, it will seriously damage the entire papermaking process and cause very large losses.

[0010] It cannot be ignored that the overall cleaning component needs to be driven by a moving mechanism with a large span. However, due to the large span of the moving mechanism, the distance between the guide rails cannot always be kept consistent. In the prior art, the components walking in the guide rails adopt spherical bearings. When the distance of the guide rails is deformed and shrunk due to long-term use, they are prone to being stuck and breaking the transmission chain. Eventually, the cleaning process is blocked and requires repair, affecting the production efficiency. Summary of the Invention

[0011] The technical problem to be solved by the present invention is to provide a sealed water film cleaning component for papermaking equipment, which solves the technical problem that the cleaning equipment in the prior art is prone to water seepage or moisture, resulting in the cleaning effect and production efficiency being affected, and at least achieves one of the technical effects of improving the cleaning effect and production efficiency.

[0012] To solve the above technical problems, the technical solution of the present invention is as follows:

[0013] A sealed water film cleaning component for papermaking equipment, which consists of a main body and a driving device for driving the main body: the main body is composed of a pipe body, a sealing mandrel located inside the pipe body, and a mandrel sealing sleeve sleeved outside the sealing mandrel; a nozzle rotating main shaft is sleeved outside the mandrel sealing sleeve, a flow channel is arranged inside the sealing mandrel, one end of the pipe body is connected with a high-pressure water joint, the end of the pipe body far from the high-pressure water joint is the water spraying place, and the flow channel penetrates through the high-pressure water joint, the nozzle rotating main shaft and the water spraying place;

[0014] Wherein, there is a high-pressure sealed water film between the sealed mandrel and the mandrel seal sleeve. A barrier is formed through the high-pressure sealed water film between the sealed mandrel and the mandrel seal sleeve to prevent water vapor or moisture from entering other parts inside the tube through this barrier.

[0015] Preferably, the thickness of the high-pressure sealed water film is less than 9 mm.

[0016] More preferably, the thickness of the high-pressure sealed water film is 0.3 - 0.9 mm.

[0017] Preferably, the driving device is coupled to the main body through a transmission device and drives the main body to move.

[0018] Preferably, the driving device is a motor.

[0019] More preferably, the paper-making equipment sealed water film cleaning assembly is driven as a whole by a moving mechanism, and the moving mechanism drives the paper-making equipment sealed water film cleaning assembly together with the driving device to move along a preset running direction.

[0020] More preferably, the preset running direction is perpendicular to the running direction of the wire cloth or felt.

[0021] Particularly preferably, the sealed mandrel is a conical sealed mandrel.

[0022] Particularly preferably, the water flow outlet at the water spraying place is conical; a conical seal is sleeved outside the water flow outlet.

[0023] Particularly preferably, the nozzle rotating main shaft and the sealed mandrel are provided with an annular sealing component, and the annular sealing component includes an O-ring and a skeleton seal ring; the sealed mandrel is a conical sealed mandrel; the top of the mandrel seal sleeve sleeved outside the sealed mandrel is pressed and fixed by a compression nut.

[0024] One or more technical solutions provided by this application have at least the following technical effects or advantages:

[0025] For the above technical solutions, since they are composed of a main body and a driving device for driving the main body: the main body is composed of a tube body, a sealed mandrel located inside the tube body, and a mandrel seal sleeve sleeved outside the sealed mandrel; a nozzle rotating main shaft is sleeved outside the mandrel seal sleeve, and a flow channel is provided inside the sealed mandrel; a high-pressure sealed water film is arranged between the sealed mandrel and the mandrel seal sleeve and other series of technical means. The high-pressure sealed water film between the sealed mandrel and the mandrel seal sleeve forms a barrier to prevent water vapor or moisture from entering other parts inside the tube through this barrier. It effectively solves the technical problem that the cleaning equipment in the prior art is prone to water seepage or moisture absorption, which affects the cleaning effect and production efficiency, and further realizes the technical effects of avoiding moisture absorption, improving the cleaning effect and production efficiency. Brief Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is Figure 1 a partially enlarged view of part K in

[0028] Figure 3 is Figure 1 a partially enlarged view of part M in

[0029] Figure 4 is a perspective view of the present invention;

[0030] Figure 5 is a perspective view of the present invention when in a flipped state;

[0031] Figure 6 is a schematic diagram of the operation of the present invention in a papermaking device;

[0032] Figure 7 is a schematic side view of the operation of the present invention in a papermaking device;

[0033] Figure 8 is a schematic structural diagram of the moving mechanism of the present invention;

[0034] Figure 9 is a schematic side view structure diagram of the moving mechanism of the present invention;

[0035] Figure 10 is a schematic structural diagram of the moving trolley in the moving mechanism of the present invention;

[0036] Figure 11 is a schematic diagram of the pulley structure of the moving trolley in the moving mechanism of the present invention.

[0037] In the figure, 1000 is the main body; 1010 is the flow channel; 1020 is the high-pressure water joint; 1030 is the water spraying place; 1031 is the water flow outlet; 1100 is the pipe body; 1110 is the sealing mandrel; 1120 is the mandrel sealing sleeve; 1130 is the compression nut; 1200 is the high-pressure sealing water film; 1300 is the nozzle rotation main shaft; 1310 is the O-ring; 1320 is the skeleton sealing ring; 1400 is the main bearing; 1500 is the water spraying disc; 1510 is the water spraying disc shield; 1520 is the high-pressure water buffer cavity; 2000 is the driving device; 2010 is the motor; 2020 is the pneumatic motor; 2030 is the transmission device; 3000 is the moving mechanism; 3010 is the chain; 3100 is the moving trolley; 3110 is the tapered roller bearing; 3120 is the pulley; 3130 is the connecting arm. Detailed Description of the Invention

[0038] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation on the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] During the papermaking process, it is necessary to clean the wire cloth or felt to avoid affecting the quality of the paper during recycling.

[0040] However, in the prior art, there is often a situation where the cleaning mechanism is prone to water seepage due to insufficient sealing effect, resulting in the device being affected by moisture, thereby affecting the cleaning effect and production efficiency.

[0041] In addition, the motor 2010 that drives the cleaning mechanism is also prone to failure due to moisture, thereby affecting the cleaning effect and working efficiency.

[0042] The insufficient water outlet stability of the cleaning nozzle also affects the cleaning effect and production efficiency.

[0043] The movement of the overall cleaning component often depends on the movement mechanism 3000 composed of the movable chain 3010, the four pulleys 3120, and the upper and lower guide rails. The large working space often requires guide rails with a very large span. During long-term use, the large-span guide rails cannot be guaranteed not to deform. When the distance between the guide rails becomes smaller, the pulley 3120 of the movement mechanism 3000 will be stuck, causing the bearing to be damaged and the chain 3010 to break.

[0044] At the same time, the loosening and falling of the fastening bolts of the lowest part of the cleaning mechanism further affect the normal production operation of the production line.

[0045] All the above unfavorable situations will lead to a discount in the cleaning effect and a decrease in production efficiency.

[0046] The technical solution of the embodiment of the present application provides a sealed water film cleaning component for papermaking equipment, which solves the problems of insufficient cleaning effect of the felt or wire cloth and affected production efficiency in the prior art, and realizes the beneficial effects of preventing moisture and improving production efficiency by replacing the original mechanical seal with a high-pressure water seal.

[0047] The general idea of the embodiment of the present invention to solve the above technical problems is as follows:

[0048] A sealed water film cleaning component for papermaking equipment, such as Figure 1As shown in the figure, it mainly consists of a pipe body 1100, a sealing mandrel 1110 located inside the pipe body 1100, and a mandrel sealing sleeve 1120 sleeved outside the sealing mandrel 1110; a nozzle rotating main shaft 1300 is sleeved outside the mandrel sealing sleeve 1120, a flow channel 1010 is arranged inside the sealing mandrel 1110, one end of the pipe body 1100 is connected with a high-pressure water joint 1020, the end of the pipe body 1100 far away from the high-pressure water joint 1020 is a water spraying place 1030, and the flow channel 1010 penetrates through the high-pressure water joint 1020, the nozzle rotating main shaft 1300 and the water spraying place 1030.

[0049] Among them, a high-pressure sealing water film 1200 is formed between the sealing mandrel 1110 and the mandrel sealing sleeve 1120, and the thickness of the high-pressure sealing water film 1200 is less than 0.9 mm.

[0050] High-pressure water enters from one end of the high-pressure water joint 1020, passes through the flow channel 1010, leaves from the water spraying place 1030 and sprays onto the felt or wire cloth to be cleaned. At this time, the high-pressure sealing water film 1200 between the sealing mandrel 1110 and the mandrel sealing sleeve 1120 forms a barrier to prevent water vapor or moisture from entering other places inside the pipe body 1100 through this barrier.

[0051] Specifically, the sealing mandrel 1110 is preferably a conical sealing mandrel 1110.

[0052] More specifically, since the surface area of the mandrel sealing sleeve 1120 is larger than that of the sealing mandrel 1110, when high-pressure water passes through the flow channel 1010, a barrier formed by the high-pressure sealing water film 1200 can achieve self-sealing of water vapor, thereby realizing the replacement of the original mechanical seal with a high-pressure water seal.

[0053] To better understand the above technical solution, the above technical solution will be described in detail below in combination with the specification drawings and specific implementation manners.

[0054] A sealing water film cleaning assembly for a papermaking device, as Figure 1 and Figure 4 shown, replaces the original mechanical seal with a high-pressure water seal. The sealing water film cleaning assembly for a papermaking device consists of a main body 1000 and a driving device 2000 for driving the main body 1000.

[0055] The main body 1000 of the sealing water film cleaning assembly for a papermaking device mainly consists of a pipe body 1100, a sealing mandrel 1110 located inside the pipe body 1100, and a mandrel sealing sleeve 1120 sleeved outside the sealing mandrel 1110; a flow channel 1010 is arranged inside the sealing mandrel 1110, one end of the pipe body 1100 is connected with a high-pressure water joint 1020, the end of the pipe body 1100 far away from the high-pressure water joint 1020 is a water spraying place 1030, and the flow channel 1010 penetrates through the high-pressure water joint 1020 and the water spraying place 1030.

[0056] Among them, there is a high-pressure sealed water film 1200 between the sealing mandrel 1110 and the mandrel sealing sleeve 1120, and the thickness of the high-pressure sealed water film 1200 is 0.3 - 0.9 mm.

[0057] As Figure 2 shown, high-pressure water enters from one end of the high-pressure water joint 1020, passes through the flow channel 1010, leaves from the water spraying place 1030 and sprays onto the felt or wire cloth to be cleaned. The surface area of the mandrel sealing sleeve 1120 is larger than that of the sealing mandrel 1110. When the high-pressure water passes through the flow channel 1010, a barrier formed by the high-pressure sealed water film 1200 between the sealing mandrel 1110 and the mandrel sealing sleeve 1120 can achieve self-sealing of water and gas, thus realizing the replacement of the original mechanical seal with high-pressure water seal.

[0058] The driving device 2000 is one of the motor 2010 or the pneumatic motor 2020. During use, the driving device 2000 is coupled with the main body 1000 of the papermaking equipment sealed water film cleaning assembly through the transmission device 2030 and drives the main body 1000 of the papermaking equipment sealed water film cleaning assembly to move. The high-pressure water passes through the flow channel 1010 and sprays out from the water spraying place 1030 along with the rotation of the main body 1000 to the felt or wire cloth located below the water spraying place 1030.

[0059] As Figure 6 and Figure 7 shown, the papermaking equipment sealed water film cleaning assembly together with the driving device 2000 is integrally driven by the moving mechanism 3000, and the moving mechanism 3000 drives the papermaking equipment sealed water film cleaning assembly together with the driving device 2000 to walk along the preset running direction.

[0060] The preset running direction of the papermaking equipment sealed water film cleaning assembly (which can also be called a cleaning nozzle or a cleaning nozzle assembly) is perpendicular to the running direction of the wire cloth or the felt.

[0061] In a humid environment, the motor 2010 is prone to failure. The environment for cleaning the wire cloth or the felt in the papermaking process requires high-pressure water flushing, and a humid working environment is inevitable. The failure of the motor 2010 affects the operation of the papermaking equipment sealed water film cleaning assembly. In the process of cleaning the wire cloth or the felt of the papermaking forming wire in the papermaking process, if the motor 2010 fails due to the humid environment, it is easy to cause the production process to stagnate. Although using a high-specification waterproof motor 2010 may alleviate the situation of the motor 2010 failing due to moisture, in a specific field of papermaking, especially in the production field where the selling price of paper products cannot be increased at will, using a high-specification waterproof motor 2010 undoubtedly increases the cost of the equipment itself. Moreover, the motor 2010 is in a dynamic environment and is prone to being affected by the waterproof function due to frequent movement and continuous exposure to a humid environment. If the motor 2010 needs to be replaced on multiple production lines, it will increase the operation and maintenance costs.

[0062] In the paper-making field where high quality requirements are demanded and the selling price cannot be high, it is obviously disadvantageous to use the high-price motor 2010 as the driving device 2000 of the sealing water film cleaning component of the paper-making equipment. Therefore, it is preferred to use the pneumatic motor 2020 as the driving device 2000 of the main body 1000 of the sealing water film cleaning component of the paper-making equipment. By replacing the motor 2010 with the pneumatic motor 2020, the main body 1000 of the sealing water film cleaning component of the paper-making equipment is driven by the pneumatic motor 2020. The pneumatic motor 2020 is suitable for operating in a humid environment.

[0063] The stability of the sealing mandrel 1110 of the sealing water film cleaning component of the paper-making equipment plays an important role in the sealing effect and the service life of the mandrel. If the sealing mandrel 1110 is unstable, it will have a negative impact on the sealing effect and is also not conducive to the service life of the mandrel.

[0064] The nozzle rotating main shaft 1300 is sleeved outside the mandrel seal sleeve 1120. If the nozzle rotating main shaft 1300 is not stable enough, it will affect the mandrel seal sleeve 1120 and thus affect the stability of the sealing mandrel 1110.

[0065] In order to improve the stability of the nozzle rotating main shaft 1300, three main bearings 1400 are provided in the direction parallel to the flow channel 1010 of the nozzle rotating main shaft 1300.

[0066] The rigid structure of the nozzle rotating main shaft 1300 is strengthened by arranging the three main bearings 1400 to improve the rotation accuracy between the main shaft and the sealing mandrel 1110, thereby ensuring a long-term stable sealing effect and the service life of the mandrel.

[0067] The nozzle rotating main shaft 1300 and the sealing mandrel 1110 are provided with an annular sealing member. The annular sealing member includes an O-ring 1310 and a skeleton seal ring 1320. The sealing performance is ensured by the O-ring 1310 and the skeleton seal ring 1320.

[0068] The sealing mandrel 1110 is preferably a conical sealing mandrel 1110. The top of the mandrel seal sleeve 1120 sleeved outside the sealing mandrel 1110 is fixedly pressed by a compression nut 1130.

[0069] The water spraying part 1030, as a component of the cleaning nozzle, if the water outlet stability of the water spraying part 1030, which is used as a component of the cleaning nozzle, is insufficient, it will also affect the cleaning effect and production efficiency. For example, when there is a short-term interruption of water flow, it will cause insufficient cleaning.

[0070] A water spraying disc 1500 is installed at the water flow outlet 1031 of the water spraying part 1030. The water spraying disc 1500 is preferably a rotating water spraying disc 1500. A protective cover 1510 of the water spraying disc 1500 is sleeved outside the water spraying disc 1500.

[0071] The water flow outlet 1031 is conical, and a conical seal is sleeved outside the conical water flow outlet 1031.

[0072] The inner cavity of the water spraying disc 1500 is a high-pressure water buffer cavity 1520. The high-pressure water buffer cavity 1520 serves as a buffer structure of the water spraying disc 1500, and a plurality of spray holes are provided at one end of the high-pressure water buffer cavity 1520 far from the flow channel 1010.

[0073] As Figure 3 shown, a high-pressure water buffer cavity 1520 is formed in the water spraying disc 1500, which is equivalent to adding an energy storage device in front of the water spraying nozzle (water spraying part 1030), improving the stability of the high-pressure water. Even if there is a short-term water supply jam at one end of the high-pressure water joint 1020, it can ensure that the water flow is continuously ejected.

[0074] During use, the flowing water passes from the high-pressure water joint 1020 through the flow channel 1010 to the water spraying part 1030. The high-pressure water flows into the high-pressure water buffer cavity 1520 from the water spraying part 1030. As the high-pressure water continuously flows into the high-pressure water buffer cavity 1520, the high-pressure water buffer cavity 1520 is filled with high-pressure water in a short time, and the high-pressure water is ejected from a plurality of spray holes. When there is a short-term water supply jam at one end of the high-pressure water joint 1020, since the high-pressure water buffer cavity 1520 is filled with high-pressure water, the high-pressure water buffer cavity 1520 can be regarded as an energy storage device, and high-pressure water can still be ejected from the spray holes of the high-pressure water buffer cavity 1520 when there is a short-term water supply jam at one end of the high-pressure water joint 1020.

[0075] In the prior art of this industry, the water spraying disc 1500 is often connected to the water flow outlet 1031 part by bolts. If the bolts fall off, the bolts will fall and be involved in the production line, resulting in the papermaking process being affected by the bolts, seriously damaging the paper products and causing serious economic losses. The bolts falling into the machine equipment will also cause equipment failures.

[0076] For the water spraying disc 1500 with bolt-free fastening, the water spraying disc 1500 and the part connecting the water flow outlet 1031 adopt a bolt-free fastening connection method, which can avoid the bolts from falling off.

[0077] By adopting the bolt-free fastening structure of the water spraying disc 1500 to replace the original industry bolt connection, it is easy to form the situation that the bolts fall off and are involved in the machine equipment, causing huge losses; it belongs to a new application in the field of cleaning the forming wire of paper making.

[0078] The papermaking equipment sealing water film cleaning component together with the driving device 2000 is integrally driven by the moving mechanism 3000, and the moving mechanism 3000 drives the papermaking equipment sealing water film cleaning component together with the driving device 2000 to move along the preset running direction.

[0079] As Figures 8 - 9As shown, the moving mechanism 3000 generally drives the driven components by the power transmitted by the chain 3010, and the main bearing 1400 is also involved inside the moving mechanism 3000. When the moving mechanism 3000 runs smoothly in the guide rail, it is not easy for the main bearing 1400 to be stuck or the chain 3010 to be broken.

[0080] However, the moving mechanism 3000 often has a large span. When the pulley 3120 of the moving mechanism 3000 travels in a guide rail with a large span, if there is an obstruction, it is easy for the main bearing 1400 to be stuck or the chain 3010 to be broken. It is not easy for a guide rail with a small span to have a situation that affects the movement. However, it is not easy to ensure that the guide rail does not deform after long-term use for a guide rail with a large span. The deformation of the guide rail is likely to affect the movement of the moving mechanism 3000. When the guide rail deforms to a certain extent but does not affect the load-bearing of the guide rail, the guide rail will not break, but it will hinder the movement of the moving mechanism 3000. Specifically, the movement of the overall cleaning assembly often depends on the driving of the moving mechanism 3000 composed of the movable chain 3010, the four pulleys 3120 and the upper and lower guide rails. The pulley 3120 of the moving mechanism 3000 will be stuck when the guide rail deforms and becomes smaller, and it will cause the main bearing 1400 to be stuck and the chain 3010 to be broken.

[0081] By adopting an adjustable-centering flannel cleaning mechanism, the upper part in the pulley 3120 mechanism can swing freely in the guide rail. Even if the track becomes narrower, the four wheels can be prevented from being stuck. By adopting the adjustable-centering flannel cleaning mechanism, the upper pulley 3120 is changed from a pair to one, so that the upper pulley 3120 can swing and travel freely within the range of the guide rail, and the lower pulley 3120 swings accordingly with the upper pulley 3120.

[0082] As Figures 10 - 11 shown, the adjustable-centering flannel cleaning mechanism is provided with a moving trolley 3100. The moving trolley 3100 is connected to the cleaning assembly through a connecting arm 3130 and drives the cleaning assembly. A pulley 3120 is provided at the top of the moving trolley 3100, and the rotation direction of the pulley 3120 at the top is parallel to the ground. This gives the upper part of the moving trolley 3100 freedom, so that even if the guide rail deforms to a certain extent due to a large span, it can swing with the deformation of the guide rail, thus forming the moving mechanism 3000 of the adjustable-centering flannel cleaning machine.

[0083] Avoid the track

[0084] At least a pair of pulleys 3120 are provided below the moving trolley 3100, and the rotation direction of the pulleys 3120 below the moving trolley 3100 is perpendicular to the ground. The rotating shaft of the pulley 3120 is provided with a wheel bearing, and the wheel bearing is a spherical bearing or a tapered bearing, preferably a tapered bearing.

[0085] Specifically, the bearings corresponding to the upper pulley 3120 and the lower pulley 3120 are changed from ball bearings in the prior art to tapered roller bearings 3110. Compared with spherical bearings, the tapered roller bearings 3110 can provide more sufficient axial force and radial force.

[0086] More specifically, the tapered roller bearings 3110 belong to separable bearings, and both the inner and outer rings of the bearings have tapered raceways. This type of bearing is divided into different structural forms such as single-row, double-row, and four-row tapered roller bearings 3110 according to the number of rows of rollers installed. The single-row tapered roller bearings 3110 can bear radial loads and single-direction axial loads. When the bearing bears a radial load, an axial component force will be generated, so another bearing that can bear the reverse axial force is needed to balance it. Therefore, compared with spherical bearings, the tapered roller bearings 3110 can provide more sufficient axial force and radial force.

[0087] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations to these embodiments still fall within the protection scope of the present invention.

Claims

1. A sealing water film cleaning assembly for papermaking equipment, comprising a main body and a driving device for driving the main body; characterized in that: The main body is composed of a tube body, a sealing core shaft located in the tube body, and a core shaft sealing sleeve sleeved outside the sealing core shaft; the core shaft sealing sleeve is provided with a nozzle rotating main shaft, a flow channel is provided in the sealing core shaft, one end of the tube body is connected to a high-pressure water joint, the end of the tube body away from the high-pressure water joint is a water spraying place, and the flow channel runs through the high-pressure water joint, the nozzle rotating main shaft and the water spraying place; There is a high-pressure sealing water film between the sealing core shaft and the core shaft sealing sleeve, and a barrier is formed by the high-pressure sealing water film between the sealing core shaft and the core shaft sealing sleeve to prevent water vapor or moisture from entering other places in the tube body through the barrier.

2. The sealing water film cleaning component for papermaking equipment according to claim 1, characterized in that: The thickness of the high-pressure sealing water film is less than 9 mm.

3. The sealing water film cleaning component for papermaking equipment according to claim 1, characterized in that: The thickness of the high-pressure sealing water film is 0.3-0.9 mm.

4. The sealing water film cleaning assembly for papermaking equipment according to claim 1, characterized in that: The driving device is coupled to the main body through a transmission device and drives the main body to move.

5. The sealing water film cleaning assembly for papermaking equipment according to claim 1, characterized in that: The driving device is a motor.

6. The sealing water film cleaning assembly for papermaking equipment according to claim 1, characterized in that: The papermaking equipment sealing water film cleaning component is driven as a whole by a moving mechanism, and the moving mechanism drives the papermaking equipment sealing water film cleaning component together with the driving device to move along a preset running direction.

7. The sealing water film cleaning assembly for papermaking equipment according to claim 1, characterized in that: The preset running direction is perpendicular to the running direction of the mesh or felt.

8. The sealing water film cleaning assembly for papermaking equipment according to claim 1, characterized in that: The sealing core shaft is a conical sealing core shaft.

9. The sealing water film cleaning assembly for papermaking equipment according to claim 1, characterized in that: The water outlet at the water spraying point is cone-shaped; and a cone-shaped sealing member is disposed on the outer cover of the water outlet.

10. The sealing water film cleaning component for papermaking equipment according to claim 1, characterized in that: The nozzle rotating main shaft and the sealing core shaft are provided with an annular sealing component, and the annular sealing component includes an O-ring and a skeleton sealing ring; the sealing core shaft is a conical sealing core shaft; the top of the core shaft sealing sleeve arranged outside the sealing core shaft is tightened and fixed by a clamping nut.

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