Novel papermaking drying cylinder mechanism

Abstract

The utility model discloses a novel papermaking drying cylinder mechanism which comprises a drying cylinder, supports are installed at the two ends of the drying cylinder, a scraper structure is arranged on one side of the drying cylinder, a rotating assembly is connected between the scraper structure and the supports, and the scraper structure comprises an installation shaft, a scraper, an installation hole, a clamping pin, a key block, a second key groove and a compression spring. And the rotating assembly comprises a supporting arm, a supporting plate, a motor, a driving shaft, a driven shaft, a mounting cavity, a worm gear and a worm, and the supporting arm is fixed to the right side of the outer surface of the front end of the support. According to the novel papermaking drying cylinder mechanism, the scraper structure is arranged, the scraper structure is installed in a clamping mode, so that the scraper structure is convenient to assemble and disassemble quickly, after the scraper structure is installed, the scraper structure is driven to rotate through the rotating assembly, and the scraper structure is driven to rotate through the rotating assembly. The scraper is in contact with the surface of the drying cylinder, and rapid adjustment is achieved.

Description

Technical Field

[0001] This utility model relates to the field of papermaking equipment technology, specifically a novel paper drying cylinder mechanism. Background Technology

[0002] In the papermaking process, the drying cylinder is a key piece of equipment used to dry paper sheets. Its surface is prone to adhering to pulp residue or other impurities, affecting paper quality and production efficiency. To keep the surface of the drying cylinder clean, a scraper is usually installed on one side of the cylinder to remove these impurities.

[0003] However, existing scraper installation methods mostly use bolt fixing, which has the following disadvantages:

[0004] 1. Inconvenient disassembly and assembly: Bolt fixing requires frequent disassembly and installation using tools, which is cumbersome and time-consuming, especially when the scraper needs to be replaced regularly, which increases the difficulty and time cost of maintenance.

[0005] 2. Low adjustment efficiency: The contact angle and pressure adjustment between the traditional scraper and the surface of the drying cylinder are not flexible enough, often requiring manual adjustment, which is inefficient;

[0006] 3. Insufficient stability: Existing scrapers are prone to displacement due to vibration or external forces during operation, resulting in unstable contact between the scraper and the surface of the drying cylinder, thus affecting the cleaning effect.

[0007] Therefore, we propose a new type of paper drying cylinder mechanism. Utility Model Content

[0008] (a) Technical problems to be solved

[0009] To address the shortcomings of existing technologies, this utility model provides a novel paper drying cylinder mechanism that facilitates quick assembly and disassembly of the doctor blade, allows for easy contact between the doctor blade and the surface of the drying cylinder, and offers high adjustment efficiency, effectively solving the problems in the prior art.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel paper drying cylinder mechanism, including a drying cylinder, with supports installed at both ends of the drying cylinder, and a scraper structure provided on one side of the drying cylinder. A rotating assembly is connected between the scraper structure and the supports. The scraper structure includes a mounting shaft, a scraper, a mounting hole, a locking pin, a key block, a second keyway, and a compression spring. The rotating assembly includes a support arm, a support plate, a motor, a drive shaft, a driven shaft, a mounting cavity, a worm gear, and a worm. The support arm is fixed to the right side of the outer surface of the front end of the support, and the support plate is fixed to the left side of the outer surface of the front end of the support. An insertion hole is provided on the outer surface of one end of both the drive shaft and the driven shaft, and the insertion hole extends to the other end of the drive shaft and the driven shaft. A first keyway is provided on one side of the insertion hole.

[0012] Preferably, the driven shaft is mounted on the support plate, the driving shaft is mounted on the support arm, a bearing is provided between the driven shaft and the support plate, the driven shaft is rotatably connected to the support plate through the bearing, and a bearing is provided between the driving shaft and the support arm, the driving shaft is rotatably connected to the support arm through the bearing.

[0013] Preferably, the mounting cavity is located inside one end of the support arm, and both the worm gear and the worm are located in the mounting cavity. The worm is located on one side of the outer surface of the worm gear, and the worm gear is fixedly mounted on the outer wall of the drive shaft. The motor is fixedly mounted in the middle of the upper outer surface of the support arm. A coupling is provided between the worm and the motor. The upper outer surface of the worm is fixedly connected to the lower outer surface of the output shaft of the motor through the coupling. A bearing is provided between the worm and the support arm, and the worm is rotatably connected to the support arm through the bearing.

[0014] Preferably, the worm is a single-start worm, and the worm lead angle is less than the equivalent friction angle, so that the worm wheel cannot drive the worm in the reverse direction.

[0015] Preferably, the outer wall of the locking pin is inserted into the socket, and the outer wall of the key block is inserted into the first keyway.

[0016] Preferably, the compression spring is located in the mounting hole, and the compression spring is fixedly installed between one end of the mounting hole and the outer surface of one end of the snap-fit ​​pin. The key block is fixedly installed on one side of the outer surface of the snap-fit ​​pin. The outer wall of the key block is slidably connected to the second keyway. The outer wall of the snap-fit ​​pin is slidably connected to the mounting hole. The outer surface of one end of the snap-fit ​​pin is elastically connected to one end of the mounting hole through the compression spring.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a novel paper drying cylinder mechanism, which has the following beneficial effects:

[0019] 1. This novel paper drying cylinder mechanism features a snap-fit ​​design for the doctor blade. Through the cooperation of snap-fit ​​pins, key blocks, and compression springs, the doctor blade can be quickly installed and disassembled without the need for additional tools, significantly improving maintenance efficiency and reducing downtime.

[0020] 2. This novel paper drying cylinder mechanism uses a motor in the rotating assembly to drive a worm gear mechanism, which in turn drives the doctor blade to rotate. The adjustment process is fast and stable, avoiding the inconvenience of traditional manual adjustment and improving the working effect of the doctor blade.

[0021] 3. A novel paper drying cylinder mechanism, the worm gear mechanism adopts a single-head worm design, the lead angle is less than the equivalent friction angle, and it has mechanical self-locking characteristics, which can effectively prevent the doctor blade from being displaced due to vibration or external force, ensure the stability of the contact between the doctor blade and the drying cylinder surface, and extend the service life of the equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a novel paper drying cylinder mechanism according to this utility model.

[0023] Figure 2 This is a schematic diagram of the rotating component in a novel paper drying cylinder mechanism of this utility model.

[0024] Figure 3 This is a side cross-sectional view of the support arm in a novel paper drying cylinder mechanism of this utility model.

[0025] Figure 4 This is a schematic diagram of the scraper structure in a novel paper drying cylinder mechanism according to this utility model.

[0026] Figure 5 This is a partial side cross-sectional view of the scraper structure in a novel paper drying cylinder mechanism of this utility model.

[0027] In the diagram: 1. Drying cylinder; 2. Support frame; 3. Scraper structure; 4. Rotating assembly; 5. Support arm; 6. Support plate; 7. Motor; 8. Drive shaft; 9. Driven shaft; 10. Insertion hole; 11. First keyway; 12. Mounting cavity; 13. Worm gear; 14. Worm; 15. Mounting shaft; 16. Scraper; 17. Mounting hole; 18. Snap-fit ​​pin; 19. Key block; 20. Second keyway; 21. Compression spring. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] This embodiment is a novel paper drying cylinder mechanism.

[0030] like Figure 1-5As shown, the device includes a drying cylinder 1, with brackets 2 installed at both ends of the drying cylinder 1. A scraper structure 3 is provided on one side of the drying cylinder 1. A rotating assembly 4 connects the scraper structure 3 and the brackets 2. The scraper structure 3 includes a mounting shaft 15, a scraper 16, a mounting hole 17, a locking pin 18, a key block 19, a second keyway 20, and a compression spring 21. The rotating assembly 4 includes a support arm 5, a support plate 6, a motor 7, a drive shaft 8, a driven shaft 9, a mounting cavity 12, a worm gear 13, and a worm 14. The support arm 5 is fixed to the right side of the outer surface of the front end of the bracket 2, and the support plate 6 is fixed to the left side of the outer surface of the front end of the bracket 2. An insertion hole 10 is provided on the outer surface of one end of the drive shaft 8 and the driven shaft 9. The insertion hole 10 extends through to the other end of the drive shaft 8 and the driven shaft 9. A first keyway 11 is provided on one side of the insertion hole 10.

[0031] Driven shaft 9 is mounted on support plate 6, and drive shaft 8 is mounted on support arm 5. A bearing is provided between driven shaft 9 and support plate 6, and driven shaft 9 is rotatably connected to support plate 6 through the bearing. A bearing is provided between drive shaft 8 and support arm 5, and drive shaft 8 is rotatably connected to support arm 5 through the bearing. Mounting cavity 12 is opened inside one end of support arm 5. Worm gear 13 and worm 14 are both located in mounting cavity 12. Worm 14 is located on one side of the outer surface of worm gear 13. Worm gear 13 is fixedly mounted on the outer wall of drive shaft 8. Motor 7 is fixedly mounted in the middle of the upper outer surface of support arm 5. A coupling is provided between worm 14 and motor 7. The upper outer surface of worm 14 is fixedly connected to the lower outer surface of the output shaft of motor 7 through the coupling. A coupling is provided between worm 14 and support arm 5. The worm 14 is rotatably connected to the support arm 5 via a bearing. The worm 14 is a single-start worm, and the lead angle of the worm 14 is less than the equivalent friction angle, so that the worm wheel 13 cannot drive the worm 14 in the reverse direction. The outer wall of the snap-fit ​​pin 18 is inserted into the insertion hole 10, and the outer wall of the key block 19 is inserted into the first keyway 11. The compression spring 21 is located in the mounting hole 17, and the compression spring 21 is fixedly installed between one end of the mounting hole 17 and one end of the outer surface of the snap-fit ​​pin 18. The key block 19 is fixedly installed on one side of the outer surface of the snap-fit ​​pin 18. The outer wall of the key block 19 is slidably connected to the second keyway 20, and the outer wall of the snap-fit ​​pin 18 is slidably connected to the mounting hole 17. One end of the outer surface of the snap-fit ​​pin 18 is elastically connected to one end of the mounting hole 17 via the compression spring 21.

[0032] It should be noted that this utility model is a novel paper drying cylinder mechanism. The drying cylinder 1 and the support 2 described in this article are both existing technologies and can be effectively understood by those skilled in the art. Specific details will not be elaborated further. The scraper structure 3 and the rotating assembly 4 are configured such that, during the installation of the scraper structure 3, the locking pins 18 at both ends of the mounting shaft 15 are pressed. The locking pins 18 drive the key block 19 to slide along the second keyway 20. The locking pins 18 also press against the compression spring 21 along the mounting hole 17, causing one end of the locking pin 18 to enter the mounting hole 17 and the key block 19 to enter the second keyway 20. Afterwards, the mounting shaft 15 is installed between the driven shaft 9 and the driving shaft 8. During this process, the reaction force of the compression spring 21 causes the locking pin 18 to engage in the insertion hole 10, and the key block 19 to engage in the first keyway 11, thereby realizing the installation of the scraper structure 3, which is convenient for assembly and disassembly. The rotating component 4 is set up to drive the worm gear 14 to rotate through the operation of the motor 7. The worm gear 14 drives the drive shaft 8 to rotate through the worm wheel 13. The drive shaft 8 drives the mounting shaft 15 to rotate, thereby driving the scraper 16 to rotate, so that one end of the scraper 16 contacts the outer wall of the drying cylinder 1, which is convenient for scraping off the impurities on the outer wall of the drying cylinder 1. Furthermore, the worm gear 14 and worm wheel 13 have a mechanical self-locking function, which helps to improve the stability of the scraper 16.

[0033] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A new type of papermaking drying cylinder mechanism, comprising a drying cylinder (1), a support (2) is installed at both ends of the drying cylinder (1), characterized in that: A scraper structure (3) is provided on one side of the drying cylinder (1). A rotating assembly (4) is connected between the scraper structure (3) and the bracket (2). The scraper structure (3) includes a mounting shaft (15), a scraper (16), a mounting hole (17), a snap pin (18), a key block (19), a second keyway (20), and a compression spring (21). The rotating assembly (4) includes a support arm (5), a support plate (6), a motor (7), a drive shaft (8), a driven shaft (9), a mounting cavity (12), a worm gear (13), and a worm (14). The support arm (5) is fixed on the right side of the outer surface of the front end of the bracket (2). The support plate (6) is fixed on the left side of the outer surface of the front end of the bracket (2). An insertion hole (10) is provided on the outer surface of one end of the drive shaft (8) and the driven shaft (9). The insertion hole (10) extends through to the other end of the drive shaft (8) and the driven shaft (9). A first keyway (11) is provided on one side of the insertion hole (10).

2. A novel papermaking dryer mechanism according to claim 1, characterized by: The driven shaft (9) is mounted on the support plate (6), and the driving shaft (8) is mounted on the support arm (5). A bearing is provided between the driven shaft (9) and the support plate (6). The driven shaft (9) is rotatably connected to the support plate (6) through the bearing. A bearing is provided between the driving shaft (8) and the support arm (5). The driving shaft (8) is rotatably connected to the support arm (5) through the bearing.

3. A novel papermaking dryer mechanism according to claim 2, characterized by: The mounting cavity (12) is located inside one end of the support arm (5). The worm wheel (13) and the worm (14) are both located in the mounting cavity (12). The worm (14) is located on one side of the outer surface of the worm wheel (13). The worm wheel (13) is fixedly installed on the outer wall of the drive shaft (8). The motor (7) is fixedly installed in the middle of the upper outer surface of the support arm (5). A coupling is provided between the worm (14) and the motor (7). The upper outer surface of the worm (14) is fixedly connected to the lower outer surface of the output shaft of the motor (7) through the coupling. A bearing is provided between the worm (14) and the support arm (5). The worm (14) is rotatably connected to the support arm (5) through the bearing.

4. A novel papermaking dryer mechanism according to claim 3, characterized in that: The worm (14) is a single-start worm, and the lead angle of the worm (14) is less than the equivalent friction angle, so that the worm wheel (13) cannot drive the worm (14) in the reverse direction.

5. A novel papermaking dryer mechanism according to claim 4, characterized in that: The outer wall of the card pin (18) is inserted into the socket (10), and the outer wall of the key block (19) is inserted into the first keyway (11).

6. A novel papermaking dryer mechanism according to claim 5, characterized by: The compression spring (21) is located in the mounting hole (17), and the compression spring (21) is fixedly installed between one end of the mounting hole (17) and the outer surface of one end of the snap-fit ​​pin (18). The key block (19) is fixedly installed on one side of the outer surface of the snap-fit ​​pin (18). The outer wall of the key block (19) is slidably connected to the second keyway (20). The outer wall of the snap-fit ​​pin (18) is slidably connected to the mounting hole (17). One end of the outer surface of the snap-fit ​​pin (18) is elastically connected to one end of the mounting hole (17) through the compression spring (21).

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