An improved structure of a positioning pin of a moving disc of a papermaking refiner

Abstract

The utility model discloses a papermaking grinding machine dynamic disc positioning pin structure improved device relates to grinding machine technical field, including base, the top fixedly connected with papermaking grinding machine main body of base, and one end of papermaking grinding machine main body is provided with the grinding cylinder, and the inside rotatory mounting of grinding cylinder has the pivot, and the outer surface of pivot is provided with the grinding dynamic disc, and the one end of pivot is provided with the thread groove in the center, and the outer surface of pivot is provided with the vertical groove, and the vertical groove is located the top of thread groove, and the inside of vertical groove is communicated with the inside of thread groove, and the inside of thread groove and vertical groove is provided with the anti -loose bolt subassembly, and through the inside of limiting through -slot of positioning pin board will enter, thereby will fix the grinding dynamic disc and resist, and through the effect of positioning pin board simultaneously, can make the grinding dynamic disc on the pivot and limit, thereby makes the grinding dynamic disc and the pivot between not easy loosening, thereby can guarantee the evenness of grinding gap, thereby can make the grinding dynamic disc stable work.

Description

Technical Field

[0001] This utility model relates to the field of pulping machine technology, and in particular to an improved device for the positioning pin structure of the motor disc in paper pulping. Background Technology

[0002] In the papermaking industry, the pulper is a key piece of equipment, and its performance directly affects the quality of paper and production efficiency. The pulping disc, as the core component of the pulper, must maintain precise positioning and stable operation during operation to ensure efficient and uniform pulping of materials.

[0003] Traditional paper mill refining disc positioning pin structures have revealed a series of problems in practical applications. Most positioning pin structures cannot ensure the stability of the connection between the refining disc and the rotating shaft under complex working conditions. During long-term high-speed operation of the refining mill, the refining disc connected by the traditional positioning pin structure is prone to loosening due to factors such as material impact, mechanical vibration and temperature changes. Once the refining disc becomes loose, its relative position with the stationary disc in the refining cylinder changes, which will lead to uneven refining gap and thus easily affect the stable operation of the refining disc. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an improved device for the positioning pin structure of the moving disc in papermaking pulping. This device can solve the problem that the moving disc connected by the traditional positioning pin structure is prone to loosening. Once the moving disc is loose, its relative position with the stationary disc in the pulping cylinder changes, which will lead to uneven pulping gap.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved device for positioning pin structure of a paper mill moving disc, comprising a base, a paper mill body fixedly connected to the top of the base, a milling cylinder provided at one end of the paper mill body, a rotating shaft rotatably mounted inside the milling cylinder, a milling moving disc provided on the outer surface of the rotating shaft, a threaded groove provided at the center of one end of the rotating shaft, a vertical groove provided on the outer surface of the rotating shaft, the vertical groove being above the threaded groove, the interior of the vertical groove communicating with the interior of the threaded groove, an anti-loosening pin assembly provided inside the threaded groove and the vertical groove, the anti-loosening pin assembly including a locking bolt, the outer surface of the locking bolt being threadedly connected to the inner wall of the threaded groove, a circular sliding plate rotatably connected to one end of the locking bolt, the circular sliding plate being located inside the threaded groove, and a positioning pin plate fixedly connected to the top of the circular sliding plate.

[0006] Preferably, the outer surface of the positioning pin plate is slidably connected to the inside of the vertical groove.

[0007] Preferably, a circular positioning groove is provided at the center of the grinding disc, and the interior of the circular positioning groove is slidably connected to the outer surface of the rotating shaft.

[0008] Preferably, a limiting groove is formed on the top side of the inner wall of the circular positioning groove, and the internal space of the limiting groove is the same size as the internal space of the vertical groove.

[0009] Preferably, the top end of the positioning pin plate extends above the rotating shaft, and the outer surface of the positioning pin plate is slidably connected to the inner wall of the limiting through groove.

[0010] Preferably, the top of the grinding cylinder is provided with a feed pipe, and a discharge pipe is fixedly connected to one side of the grinding cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The improved device for positioning pin structure of the paper mill moving disc has a positioning pin plate that enters the interior of the limiting groove, thereby fixing the moving disc. At the same time, the positioning pin plate can limit the moving disc on the rotating shaft, so that the moving disc and the rotating shaft are not easy to loosen, thus ensuring the uniformity of the pulping gap and enabling the moving disc to work stably. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a three-dimensional structural diagram of an improved positioning pin structure device for a paper mill grinding disc according to the present invention.

[0015] Figure 2 This is a schematic diagram of the grinding disc structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the positioning pin plate structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the locking bolt structure of this utility model.

[0018] Reference numerals in the attached drawings: 1. Base; 2. Main body of the paper mill; 3. Milling cylinder; 4. Feed pipe; 5. Milling disc; 6. Circular positioning groove; 7. Rotating shaft; 8. Threaded groove; 9. Vertical groove; 10. Positioning pin plate; 11. Limiting through groove; 12. Locking bolt; 13. Circular sliding plate; 14. Discharge pipe. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Please see Figure 1-4 This utility model provides a technical solution: an improved device for positioning pin structure of a paper mill moving disc, including a base 1, a paper mill body 2 fixedly connected to the top of the base 1, a milling cylinder 3 provided at one end of the paper mill body 2, a rotating shaft 7 rotatably installed inside the milling cylinder 3, a milling moving disc 5 provided on the outer surface of the rotating shaft 7, a threaded groove 8 opened at the center of one end of the rotating shaft 7, a vertical groove 9 opened on the outer surface of the rotating shaft 7, the vertical groove 9 being located above the threaded groove 8, the interior of the vertical groove 9 communicating with the interior of the threaded groove 8, an anti-loosening pin assembly provided inside the threaded groove 8 and the vertical groove 9, the anti-loosening pin assembly including a locking bolt 12, the outer surface of the locking bolt 12 being threadedly connected to the inner wall of the threaded groove 8, a circular sliding plate 13 rotatably connected to one end of the locking bolt 12, the circular sliding plate 13 being located inside the threaded groove 8, and a positioning pin plate 10 fixedly connected to the top of the circular sliding plate 13.

[0024] Furthermore, the outer surface of the positioning pin plate 10 is slidably connected to the interior of the vertical groove 9.

[0025] Furthermore, a circular positioning groove 6 is provided at the center of the grinding disc 5, and the interior of the circular positioning groove 6 is slidably connected to the outer surface of the rotating shaft 7.

[0026] Furthermore, a limiting groove 11 is provided on the top side of the inner wall of the circular positioning groove 6, and the internal space of the limiting groove 11 is the same size as the internal space of the vertical groove 9.

[0027] Furthermore, the top of the positioning pin plate 10 extends above the rotating shaft 7, and the outer surface of the positioning pin plate 10 is slidably connected to the inner wall of the limiting through groove 11.

[0028] Furthermore, a feed pipe 4 is provided at the top of the grinding cylinder 3, and a discharge pipe 14 is fixedly connected to one side of the grinding cylinder 3.

[0029] Furthermore, when installing the grinding disc 5, the grinding disc 5 is first fitted onto the outer surface of the rotating shaft 7 through the circular positioning groove 6 at its center, so that the circular positioning groove 6 and the rotating shaft 7 slide together, and the position of the grinding disc 5 is initially determined. At this time, the limiting through groove 11 on the top side of the inner wall of the grinding disc 5 is aligned with the vertical groove 9 on the rotating shaft 7, which facilitates the installation and positioning of the grinding disc 5, thus preparing for the subsequent insertion of the positioning pin plate 10.

[0030] Next, the locking bolt 12 moves the circular slide plate 13 and the positioning pin plate 10. Then, the locking bolt 12 and the circular slide plate 13 enter the interior of the threaded groove 8, and the positioning pin plate 10 enters the interior of the vertical groove 9. Then, the locking bolt 12 is rotated to make it threadedly connected with the threaded groove 8. At the same time, the locking bolt 12 moves the circular slide plate 13. Then, the circular slide plate 13 moves the positioning pin plate 10 to slide inside the vertical groove 9. Then, until the locking bolt 12 is rotated and installed, the positioning pin plate 10 enters the interior of the limiting through groove 11, thereby abutting and fixing the grinding disc 5. At the same time, through the action of the positioning pin plate 10, the grinding disc 5 can be limited on the rotating shaft 7, so that the grinding disc 5 and the rotating shaft 7 are not easy to loosen, thus ensuring the uniformity of the grinding gap and enabling the grinding disc 5 to work stably.

[0031] Furthermore, when the paper mill is working, the material enters the interior of the mill 3 through the feed pipe 4 at the top of the mill 3. The rotating shaft 7 drives the moving mill disc 5 to rotate inside the mill 3. The moving mill disc 5 and the stationary disc inside the mill 3 cooperate to process the material (a stationary disc is installed inside the mill 3, located on one side of the moving mill disc 5. Since the grinding method of the stationary disc and the moving disc is existing technology, it will not be described in detail here). Then the processed pulp is discharged through the discharge pipe 14 on one side of the mill 3.

[0032] Structural Description:

[0033] Base 1: As the basic support component of the entire device, base 1 provides a stable installation platform for the main body 2 of the paper mill, bears the entire weight and vibration during the operation of the equipment, ensures the stability of the device during operation, and avoids the impact of shaking on the pulping effect and the service life of the equipment.

[0034] Paper mill refining machine body 2: This is the core frame of the device. It integrates the main functional components of the refining machine, and plays the role of connecting and fixing components such as the refining cylinder 3. It provides the necessary mechanical and power support for the refining process and ensures the smooth progress of the refining work.

[0035] The grinding cylinder 3 is the working space for material grinding. The feed pipe 4 at the top is used for material input, and the discharge pipe 14 on one side is used for outputting the slurry after grinding. The grinding cylinder 3, together with the grinding moving disc 5 and the stationary disc, forms the grinding working area. Its structural design determines the grinding efficiency and quality.

[0036] Feed pipe 4: Serves as the channel for materials to enter the grinding cylinder 3, introducing the external materials to be ground into the grinding cylinder 3 to provide raw materials for the grinding process.

[0037] The grinding disc 5 is a key moving component that realizes the grinding function. It is installed on the rotating shaft 7 through the circular positioning groove 6 and rotates at high speed under the drive of the rotating shaft 7. It works in conjunction with the stationary disc to grind the material. Its stability and positioning accuracy directly affect the uniformity of grinding and the quality of the slurry.

[0038] Circular positioning groove 6: It is opened at the center of the grinding disc 5 and slides with the outer surface of the rotating shaft 7 to achieve the initial positioning of the grinding disc 5 on the rotating shaft 7, ensuring that the grinding disc 5 can be accurately installed in the predetermined position, laying the foundation for subsequent precise fixing and stable rotation.

[0039] Rotating shaft 7: As a power transmission component, one end is connected to the drive device on the main body 2 of the paper mill, which transmits power to the pulping disc 5 and drives it to rotate at high speed. The threaded groove 8 and vertical groove 9 on the rotating shaft 7 provide installation space for the anti-loosening pin assembly. By cooperating with the anti-loosening pin assembly, the positioning and fixing of the pulping disc 5 can be achieved.

[0040] Threaded groove 8: Located at the center of one end of the rotating shaft 7, it is threadedly connected to the locking bolt 12. Through the threaded engagement, the locking bolt 12 can move axially during the screwing in or out, thereby driving the circular slide plate 13 and the positioning pin plate 10 to move, realizing the fixing and disassembly operation of the grinding disc 5.

[0041] Vertical groove 9: Provides a sliding channel for positioning pin plate 10, guides positioning pin plate 10 to slide, so that it can accurately insert into or exit the limiting through groove 11 of grinding moving plate 5, and realizes positioning and limiting of grinding moving plate 5.

[0042] Positioning pin plate 10: It is a key component of the anti-loosening pin assembly. When inserted into the limiting through groove 11, it abuts against the grinding disc 5, restricts its movement on the rotating shaft 7, prevents the grinding disc 5 from loosening, ensures the uniformity of the grinding gap, and ensures the stable operation of the grinding disc 5.

[0043] Limiting groove 11: used to accommodate positioning pin plate 10, and cooperates with positioning pin plate 10 to position and limit the grinding disk 5, ensuring the stability of grinding disk 5 during operation.

[0044] Locking bolt 12: It is connected to the threaded groove 8 by thread and moves axially when rotating, which drives the circular slide plate 13 and the positioning pin plate 10 to move. It is an operating component that controls the positioning pin plate 10 to enter or exit the limit through groove 11. By tightening or loosening the locking bolt 12, the grinding disc 5 can be fixed and disassembled.

[0045] Circular slide plate 13: Drives the positioning pin plate 10 to slide in the vertical groove 9, so that the positioning pin plate 10 can move into the limiting through groove 11.

[0046] Discharge pipe 14: Used to discharge the slurry after grinding in the grinding cylinder 3, and connect to subsequent slurry collection and processing equipment.

[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An improved device for positioning pin structure of a paper mill refining disc, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the main body (2) of the paper mill. A pulping cylinder (3) is provided at one end of the main body (2). A rotating shaft (7) is rotatably installed inside the pulping cylinder (3). A pulping moving disc (5) is provided on the outer surface of the rotating shaft (7). A threaded groove (8) is provided at the center of one end of the rotating shaft (7). A vertical groove (9) is provided on the outer surface of the rotating shaft (7). The vertical groove (9) is located above the threaded groove (8). The interior of the vertical groove (9) is connected to the interior of the threaded groove (8). An anti-loosening pin assembly is provided inside the threaded groove (8) and the vertical groove (9). The anti-loosening pin assembly includes a locking bolt (12). The outer surface of the locking bolt (12) is threadedly connected to the inner wall of the threaded groove (8). A circular sliding plate (13) is rotatably connected to one end of the locking bolt (12). The circular sliding plate (13) is located inside the threaded groove (8). A positioning pin plate (10) is fixedly connected to the top of the circular sliding plate (13).

2. The improved device for positioning pin structure of papermaking pulping disc according to claim 1, characterized in that: The outer surface of the positioning pin plate (10) is slidably connected to the inside of the vertical groove (9).

3. The improved device for positioning pin structure of papermaking pulping disc according to claim 1, characterized in that: A circular positioning groove (6) is provided at the center of the grinding disc (5), and the interior of the circular positioning groove (6) is slidably connected to the outer surface of the rotating shaft (7).

4. The improved device for positioning pin structure of paper mill refining disc according to claim 3, characterized in that: A limiting groove (11) is provided on the top side of the inner wall of the circular positioning groove (6), and the internal space of the limiting groove (11) is the same size as the internal space of the vertical groove (9).

5. The improved device for positioning pin structure of paper mill refining disc according to claim 4, characterized in that: The top of the positioning pin plate (10) extends above the rotating shaft (7), and the outer surface of the positioning pin plate (10) is slidably connected to the inner wall of the limiting through groove (11).

6. The improved device for positioning pin structure of papermaking pulping disc according to claim 1, characterized in that: The top of the grinding cylinder (3) is provided with a feed pipe (4), and a discharge pipe (14) is fixedly connected to one side of the grinding cylinder (3).

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