Paper pulp dispersing device for pulping degree measurement

Abstract

The utility model belongs to the technical field of papermaking auxiliary equipment, and relates to a paper pulp dispersing device for measuring beating degree, which comprises a driving seat, a rotating shaft and a stirring rod, a driving motor is arranged in the driving seat and connected with the rotating shaft through a coupler, and the stirring rod is detachably mounted in the rotating shaft. An auxiliary locking device is arranged between the rotating shaft and the stirring rod, and a plurality of adjusting lap joint rods are arranged on the outer surface of the driving seat. Through the auxiliary locking device, the mounting stability of the stirring rod is ensured while the stirring rod is convenient to disassemble and assemble, and the lap joint mode of the stirring rod and different paper pulp containers is flexibly adjusted by matching with the adjusting lap joint rods arranged on the outer surface of the driving seat, so that the device can adapt to the paper pulp containers with different sizes; and the flexibility and universality of the device in different use scenes are improved.

Description

Technical Field

[0001] This utility model relates to the field of papermaking auxiliary equipment technology, and in particular to a pulp dispersion device for measuring beating degree. Background Technology

[0002] Freeness (also known as beating degree, measured in °SR) is an important indicator for measuring the water filtration performance of pulp, reflecting the degree of dispersion of pulp fibers and the rate of water filtration.

[0003] When measuring freeness using a freeness meter, the pulp sample needs to be diluted with deionized water. The diluted pulp will experience fiber settling over time, leading to errors in the freeness measurement. Using a regular glass rod for stirring results in poor fiber dispersion, and ordinary electric stirrers are limited by environmental factors and lack flexibility.

[0004] To improve the dispersion of pulp fibers and reduce measurement errors caused by fiber settling, glass rods are often used for stirring. However, glass rod stirring has obvious drawbacks. Its stirring force and method are relatively simple and time-consuming and laborious, making it difficult to fully and evenly disperse the pulp fibers. This results in poor dispersion of pulp fibers and fails to effectively meet the accuracy requirements of freeness measurement.

[0005] In addition, while existing electric mixers can improve mixing efficiency to some extent, they lack flexibility and are difficult to adapt to the pulp dispersion requirements of different pulp containers, making them extremely inconvenient to use. Utility Model Content

[0006] To address the aforementioned technical problems, this invention provides a pulp dispersion device for measuring beating degree.

[0007] The technical solution of this utility model is achieved through the following scheme: a pulp dispersion device for measuring beating degree, comprising a drive base, a rotating shaft and a stirring rod, wherein a drive motor is provided inside the drive base, the drive motor is connected to the rotating shaft through a coupling, the stirring rod is detachably installed inside the rotating shaft, an auxiliary locking device is provided between the rotating shaft and the stirring rod, and a plurality of adjusting overlap rods are provided on the outer surface of the drive base.

[0008] Through the above technical solutions and the auxiliary locking device, the disassembly and installation of the stirring rod are facilitated, while ensuring the stability of the stirring rod installation. In conjunction with several adjustable overlapping rods on the outer surface of the drive seat, the overlapping method with different pulp containers can be flexibly adjusted, so that the device can adapt to pulp containers of different sizes, thereby improving the flexibility and versatility of the device in different usage scenarios.

[0009] Preferably, an auxiliary locking device is installed on the rotating shaft, and a slot is opened in the rotating shaft to match the locking end of the stirring rod, and a groove is opened on the locking end of the stirring rod to match the auxiliary locking device.

[0010] Preferably, the auxiliary locking device includes a pull rod, a return spring, and a locking block. The locking block is installed at one end of the pull rod, and a handle is provided at the other end of the pull rod. A through hole adapted to the pull rod is opened on the rotating shaft, and a square groove adapted to the locking block is opened on the rotating shaft. The through hole communicates with the square groove, and a return spring is fixedly installed between one end of the locking block and the square groove.

[0011] Preferably, the other end of the locking block has a slope that matches the locking end of the stirring rod.

[0012] Through the above technical solutions, the symmetrical layout of the auxiliary locking device allows for more even application of locking force, ensuring stability of the stirring rod even during high-speed rotation. This guarantees smooth mixing and improves pulp dispersion. During the insertion of the locking end of the stirring rod into the rotating shaft slot, the ramp acts as a guide, enabling the locking end to smoothly push the locking block back into the spring and smoothly enter the designated position. Simultaneously, once the locking end of the stirring rod reaches the appropriate position, the spring force causes the locking block to automatically slide into the groove along the ramp, achieving a self-locking function. Locking can be completed without additional operation, simplifying the installation process and improving installation accuracy and efficiency.

[0013] Preferably, the adjusting connecting rod includes a telescopic fixing rod, a fixing claw, an adjusting member, and an adjusting claw. One end of the telescopic fixing rod is fixedly installed on the outer surface of the drive seat, and the bottom of the other end of the telescopic fixing rod is provided with a fixing claw. The adjusting claw is slidably installed on the bottom of the telescopic fixing rod through the adjusting member.

[0014] Preferably, both the inner side of the fixed claw and the inner side of the adjusting claw are provided with soft rubber pads.

[0015] Preferably, a first magnetic plate is fixedly provided on the top wall of the rotating shaft slot, and a second magnetic plate is provided on the top of the locking end of the stirring rod.

[0016] Through the above technical solutions, by adjusting the length of the telescopic fixing rod, the entire device is positioned appropriately, ensuring that the stirring rod can effectively act on the pulp and improving the device's adaptability to different containers. By adjusting the distance between the fixing claw and the adjusting claw, the edges of containers of different shapes can be effectively clamped, firmly fixing the device to the container and preventing the device from shaking or shifting during the stirring process, thus ensuring stable stirring operation. The soft rubber pad has a good cushioning and protective function, preventing the fixing claw and adjusting claw from directly contacting the container surface, reducing scratches, wear, and other damage to the container caused by friction, vibration, and compression, and extending the container's service life.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. This utility model, through an auxiliary locking device, facilitates the disassembly and installation of the stirring rod while ensuring the stability of the stirring rod installation. In conjunction with several adjustable overlapping rods provided on the outer surface of the drive seat, the overlapping method with different pulp containers can be flexibly adjusted, enabling the device to adapt to pulp containers of different sizes and improving the flexibility and versatility of the device in different usage scenarios.

[0019] 2. The symmetrical layout of the auxiliary locking device ensures more even application of locking force, guaranteeing stability of the stirring rod even during high-speed rotation. This ensures smooth mixing and improves pulp dispersion. During the insertion of the locking end of the stirring rod into the rotating shaft slot, the ramp acts as a guide, allowing the locking end to smoothly push the locking block to compress the return spring and enter the designated position. Simultaneously, once the locking end reaches the appropriate position, the spring force causes the locking block to automatically slide into the groove along the ramp, achieving a self-locking function. Locking is completed without additional operation, simplifying the installation process and improving accuracy and efficiency.

[0020] 3. By adjusting the length of the telescopic fixing rod, the entire device can be positioned appropriately, ensuring that the stirring rod can effectively act on the pulp and improving the device's adaptability to different containers. By adjusting the distance between the fixing claw and the adjusting claw, the edges of containers of different shapes can be effectively clamped, firmly fixing the device to the container and preventing the device from shaking or shifting during stirring, thus ensuring stable stirring operation. The soft rubber pad has a good cushioning and protective effect, preventing the fixing claw and adjusting claw from directly contacting the container surface, reducing scratches, wear, and other damage to the container caused by friction, vibration, and compression, and extending the service life of the container.

[0021] 4. The first and second magnetic plates attract each other, generating additional adsorption force, which further enhances the connection strength between the stirring rod and the rotating shaft, making it less likely to loosen or fall off. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the drive seat after the stirring rod has been disassembled according to this utility model;

[0024] Figure 3 This is a schematic diagram of the assembly structure of the rotating shaft and stirring rod of this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the stirring rod of this utility model;

[0026] Figure 5 This is a schematic diagram of the assembly structure of the auxiliary locking device of this utility model;

[0027] Figure 6 This is a three-dimensional structural diagram of the adjusting overlap rod of this utility model.

[0028] Explanation of reference numerals in the attached diagram: 1. Drive base; 2. Rotary shaft; 3. Stirring rod;

[0029] 4. Auxiliary locking device; 41. Pull rod; 42. Return spring; 43. Locking block;

[0030] 5. Adjustable overlapping rod; 51. Telescopic fixing rod; 52. Fixing claw; 53. Adjusting component; 54. Adjusting claw;

[0031] 6. First magnetic clasp; 7. Coupling; 8. Handle; 9. Second magnetic clasp; 10. Soft rubber pad. Detailed Implementation

[0032] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] A pulp dispersion device for measuring freeness, such as Figures 1-6 As shown, the device includes a drive base 1, a rotating shaft 2, and a stirring rod 3. The drive base 1 houses a drive motor, which is connected to the rotating shaft 2 via a coupling 7. The stirring rod 3 is detachably installed within the rotating shaft 2. An auxiliary locking device 4 is provided between the rotating shaft 2 and the stirring rod 3. Several adjusting connecting rods 5 are provided on the outer surface of the drive base 1. The drive base 1 is divided into upper and lower layers. The drive motor is placed on the top layer, and its output shaft passes through a partition and connects to the coupling 7 on the second layer. The end of the rotating shaft 2 connected to the coupling 7 is located inside the drive base 1. The portion of the rotating shaft 2 that passes through the drive base 1... The device is equipped with bearings to reduce friction between the rotating shaft 2 and the drive seat 1 during rotation. The drive seat 1 is square, and four adjustable overlap rods 5 are preferably installed on the four outer sides of the drive seat 1 to support the entire device and allow it to overlap the container holding the pulp. Disassembly is simple. The device can be fitted with stirring rods 3 of different sizes according to the size of the container. By pulling out the adjustable overlap rods 5, the entire device can overlap the open end of different containers for dispersion and stirring. After the pulp is diluted, the device is used to disperse the fibers that have settled at the bottom to obtain an accurate freeness measurement value.

[0035] Handles 8 are fixedly installed on the two opposite outer sides of the drive seat 1. Anti-slip tape is wrapped around the upper part of the two handles 8 to facilitate the staff to grip the whole device.

[0036] like Figure 3 and Figure 4 As shown, an auxiliary locking device 4 is installed on the rotating shaft 2 with opposite orientation. The rotating shaft 2 has a slot that matches the locking end of the stirring rod 3. The locking end of the stirring rod 3 has a groove that matches the auxiliary locking device 4. The stirring rod 3 includes a locking end extending from the top and four columnar stirring parts distributed at equal angles. The stirring parts are designed as four thin columnar stirring rods 3. Adjacent stirring rods 3 are distributed at equal angles. The locking end extends upward with a threaded structure, which meshes with the threaded groove in the slot at the lower end of the rotating shaft 2. There are two auxiliary locking devices 4. The locking end of the stirring rod 3 is convex. A second magnetic plate 9 is installed at the top. A snap-fit ​​groove that matches the auxiliary locking device 4 on the rotating shaft 2 is provided in the middle. The bottom of the snap-fit ​​groove is threaded. A first magnetic plate 6 is fixedly installed on the top wall of the slot of the rotating shaft 2. A second magnetic plate 9 is provided at the top of the locking end of the stirring rod 3, resulting in triple locking.

[0037] The threaded structure of the locking end of the stirring rod 3 engages with the threaded groove in the lower end slot of the rotating shaft 2. Through the screwing action of the threads, the stirring rod 3 and the rotating shaft 2 are initially positioned and fixed in the axial and radial directions, providing high connection strength and precision, and capable of withstanding certain tensile and torque forces. The locking groove in the middle of the locking end of the stirring rod 3 is adapted to the auxiliary locking device 4 on the rotating shaft 2. When the stirring rod 3 is inserted into the slot of the rotating shaft 2 and rotated to a certain position, the auxiliary locking device 4 will engage in the locking groove, forming a locking structure. The locking further enhances the connection stability between the stirring rod 3 and the rotating shaft 2, preventing the stirring rod 3 from moving axially during rotation. The first magnetic absorbing piece 6 on the top wall of the slot of the rotating shaft 2 and the second magnetic absorbing piece 9 on the top of the locking end of the stirring rod 3 attract each other, generating magnetic attraction. The magnetic locking can buffer the vibration and impact on the stirring rod 3 during operation to a certain extent, and also helps to maintain the coaxiality of the stirring rod 3 and the rotating shaft 2, improving the stirring effect.

[0038] like Figure 4 As shown, the four stirring rods 3 are evenly distributed on the circumference with an included angle of 90 degrees (forming a cross-shaped or square-like layout, increasing the contact area during stirring, avoiding dead corners, improving stirring efficiency, reducing resistance during stirring, and making stirring smoother).

[0039] The auxiliary locking device 4 includes a pull rod 41, a return spring 42, and a locking block 43. The locking block 43 is installed at one end of the pull rod 41, and a handle is provided at the other end of the pull rod 41. A through hole adapted to the pull rod 41 is opened on the rotating shaft 2, and a square groove adapted to the locking block 43 is opened on the rotating shaft 2. The through hole connects to the square groove. A return spring 42 is fixedly installed between one end of the locking block 43 and the square groove. The through hole and the square groove on the rotating shaft 2 form a convex shape. By pulling the pull rod 41 with the handle, the locking block 43 is driven to release the locking of the stirring rod 3. At this time, the stirring rod 3 can be disengaged by twisting it. The pull rod 41 passes through the return spring 42.

[0040] The other end of the locking block 43 has a ramp that matches the locking end of the stirring rod 3. The locking end of the stirring rod 3 has a chamfered ramp. The end of the locking block 43 away from the pull rod 41 also has a ramp. When the locking end of the stirring rod 3 is screwed in, the ramp of the locking end of the stirring rod 3 abuts against the ramp of the locking block 43. When the locking end of the stirring rod 3 continues to be screwed in, the ramp of the stirring rod 3 can push open the ramp of the locking block 43 without the need for manual insertion or removal of the auxiliary locking device 4. When the groove of the locking end of the stirring rod 3 is aligned with the locking block 43, the elastic force of the return spring 42 will cause the locking block 43 to automatically embed into the groove, achieving rapid locking.

[0041] The adjusting overlap rod 5 includes a telescopic fixing rod 51, a fixing claw 52, ​​an adjusting component 53, and an adjusting claw 54. One end of the telescopic fixing rod 51 is fixedly installed on the outer surface of the drive seat 1, and the bottom of the other end of the telescopic fixing rod 51 is provided with a fixing claw 52. The adjusting claw 54 is slidably installed on the bottom of the telescopic fixing rod 51 through the adjusting component 53. The telescopic fixing rod 51 is retractable and is fixed by a fixing pin and bolted to the four side walls of the drive seat 1. At this time, the fixing claw 52 abuts against the inner wall of the container. The bottom surface of the end away from the side wall of the drive seat 1 is equipped with the fixing claw 52, ​​the adjusting component 53, and the adjusting claw 54. The adjusting component 53 includes a turning handle 8, a threaded rod, and a limiting slide. The adjusting claw 54 is movably installed on the threaded rod, with limiting blocks protruding on both sides, and is slidably installed in the limiting slide. When the handle 8 is rotated, the adjusting claw 54 will move towards the fixing claw 52 and finally abut against the outer wall of the container, thereby clamping the container. The material of the adjusting overlap rod 5 is preferably aluminum alloy, which is lightweight and strong enough to support the entire device.

[0042] Both the inner side of the fixing claw 52 and the inner side of the adjusting claw 54 are provided with soft rubber pads 10 to reduce stress when clamping the side wall of the container and avoid damaging the container.

[0043] Working principle: The staff selects the appropriate stirring rod 3 according to the size of the container, screws the locking end of the stirring rod 3 into the thread, auxiliary locking device 4 and magnetic plate to complete the triple locking and fixation, and further adjusts the extension length of the overlapping rod 5 so that it can overlap at the opening of the container. The handle 8 is rotated and twisted to clamp the container wall.

[0044] The worker holds handle 8 to start the drive motor to stir and disperse the pulp. When the stirring rod 3 is to be disassembled, simply pull the handles on both sides of the rotating shaft 2 to release the locking block 43 of the auxiliary locking device 4 from locking the stirring rod 3. At the same time, another worker twists the stirring rod 3 to disassemble it.

[0045] The parts and equipment all use conventional models in the existing technology, and the circuit connections use conventional connection methods in the existing technology, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A pulp dispersion device for measuring freeness, characterized in that: It includes a drive base (1), a rotating shaft (2) and a stirring rod (3). The drive base (1) is equipped with a drive motor, which is connected to the rotating shaft (2) via a coupling (7). The stirring rod (3) is detachably installed inside the rotating shaft (2). An auxiliary locking device (4) is provided between the rotating shaft (2) and the stirring rod (3). Several adjusting connecting rods (5) are provided on the outer surface of the drive base (1).

2. The pulp dispersion device for measuring freeness according to claim 1, characterized in that: An auxiliary locking device (4) is installed on the rotating shaft (2) and is arranged opposite to it. The rotating shaft (2) has a hole and groove that are adapted to the locking end of the stirring rod (3). The locking end of the stirring rod (3) has a groove that is adapted to the auxiliary locking device (4).

3. The pulp dispersion device for measuring beating degree according to claim 2, characterized in that: The auxiliary locking device (4) includes a pull rod (41), a return spring (42) and a locking block (43). The locking block (43) is installed at one end of the pull rod (41), and a handle is provided at the other end of the pull rod (41). A through hole adapted to the pull rod (41) is opened on the rotating shaft (2), and a square groove adapted to the locking block (43) is opened on the rotating shaft (2). The through hole connects to the square groove, and a return spring (42) is fixedly installed between one end of the locking block (43) and the square groove.

4. The pulp dispersion device for measuring beating degree according to claim 3, characterized in that: The other end of the locking block (43) has a slope that matches the locking end of the stirring rod (3).

5. The pulp dispersion device for measuring freeness according to claim 1, characterized in that: The adjusting connecting rod (5) includes a telescopic fixing rod (51), a fixing claw (52), an adjusting member (53), and an adjusting claw (54). One end of the telescopic fixing rod (51) is fixedly installed on the outer surface of the drive seat (1), and the other end of the telescopic fixing rod (51) is provided with a fixing claw (52). The adjusting claw (54) is slidably installed on the bottom of the telescopic fixing rod (51) through the adjusting member (53).

6. The pulp dispersion device for measuring freeness according to claim 5, characterized in that: The inner side of the fixed claw (52) and the inner side of the adjusting claw (54) are both provided with soft rubber pads (10).

7. The pulp dispersion device for measuring freeness according to claim 2, characterized in that: The top wall of the groove of the rotating shaft (2) is fixedly provided with a first magnetic absorbing piece (6), and the top of the locking end of the stirring rod (3) is provided with a second magnetic absorbing piece (9).

Images