Paper pulp abrasive disc balance detection device

Abstract

The utility model discloses a paper pulp abrasive disc balance detection device which comprises an adjustable ruler, a balance disc, a middle disc and a supporting mechanism. The supporting mechanism comprises a supporting shaft, a jack and a base; the middle disc is fixed to the upper end of the base, ruler pointers are arranged on the two sides of the middle disc, the balance disc is placed on the middle disc, rulers are arranged on the two sides of the lower surface of the balance disc, the ruler pointers and the rulers are oppositely arranged in a zero-distance mode, an adjustable ruler is arranged in the center of the upper surface of the balance disc, and the adjustable ruler takes the center of the balance disc as the center point. The balance disc moves on the lower circumferences with different diameters on the balance disc; a steel ball is arranged in the center of the bottom end of the balance disc, and the lower convex face of the steel ball protrudes out of the lower surface of the balance disc and makes point contact with the top sleeve. The paper pulp abrasive disc balance detection device provided by the utility model is simple in structure and convenient to use, realizes balance detection of a plurality of groups of abrasive discs at the lowest cost, can adapt to abrasive discs of different specifications, and is suitable for diversified production scenes.

Description

Technical Field

[0001] This utility model relates to the field of pulp grinding disc processing technology, and in particular to a pulp grinding disc balance detection device. Background Technology

[0002] Pulp grinding discs are core components of the pulp refiner in the pulping section of the papermaking industry. As consumable parts, their service life directly affects pulp quality, paper quality, and production efficiency. Balance monitoring of pulp grinding discs is crucial in both papermaking and pulp production. Dynamic imbalance of the pulp grinding discs can lead to increased equipment vibration, affecting the lifespan of components such as bearings and motors. Only a balanced pulp grinding disc can ensure stable pulping results, thereby improving the physical properties of the finished paper.

[0003] One existing method for balancing the grinding discs involves weighing each disc individually. When a discrepancy is found, the heaviest disc is used as a benchmark, and the remaining discs are weighed with lead until they reach the same weight. This method is not only labor-intensive but also time-consuming, increasing production costs.

[0004] Therefore, it is very meaningful to provide a low-cost and efficient pulp grinding plate balance detection device. Utility Model Content

[0005] In view of this, the present invention discloses a pulp grinding disc balance detection device, which performs balance detection on the processed grinding discs to ensure the stable performance of the grinding discs when installed and used in the machine.

[0006] The technical solution of this utility model includes: a pulp grinding disc balance detection device, comprising an adjustable ruler, a balance disc, a middle disc, and a support mechanism; the support mechanism includes a support shaft, a jack, and a base; the base is a frame structure, the lower end of the jack is fixed to the middle of the lower end of the base, the lower end of the support shaft is fixed to the upper end of the jack, the upper part of the support shaft is fixed to the center of the upper part of the base, and the upper end of the support shaft extends out of the base, the top of the support shaft is provided with a top sleeve, the middle disc is fixed to the upper end of the base, and scale pointers are provided on both sides of the middle disc, the balance disc is placed on the middle disc, scales are provided on both sides of the lower surface of the balance disc, the scales are perpendicular to the lower surface of the balance disc, the scale pointers are set at zero distance relative to the scales, an adjustable ruler is provided at the center of the upper surface of the balance disc, the adjustable ruler moves circumferentially around the center of the balance disc with different diameters on the balance disc; a steel ball is provided at the center of the bottom end of the balance disc, the convex surface of the steel ball protrudes from the lower surface of the balance disc and contacts the top sleeve.

[0007] Preferably, a positioning sleeve is provided between the upper part of the support shaft and the base, that is, the upper part of the support shaft is fixed to the center of the upper part of the base by the positioning sleeve.

[0008] Preferably, the base has a protrusion at the upper end and middle, the middle plate is fitted onto the protrusion, and the bottom of the middle plate is fixedly connected to the middle plate by adjusting bolts.

[0009] Preferably, the scale pointer is mounted on both sides of the central plate via a scale base.

[0010] Preferably, a camera is mounted on the ruler base, and the camera is connected to a computer signal.

[0011] Preferably, the middle plate is provided with a positioning hole, and the lower surface of the balance plate is provided with a positioning protrusion, wherein the positioning hole and the positioning protrusion are matched.

[0012] Preferably, the adjustable ruler moves on the upper surface of the balance disk with the center of the balance disk as the center point. The specific structure is as follows: a fixed sleeve is provided at the center of the upper surface of the balance disk, a rotating sleeve is attached to the fixed sleeve, a crossbar is fixed on the rotating sleeve, an adjustable ruler is fitted on the crossbar, the adjustable ruler slides on the crossbar, and the adjustable ruler (1) is set perpendicular to the upper surface of the balance disk.

[0013] Preferably, the adjustable ruler is fastened to a certain position on the crossbar by an adjustable bolt.

[0014] The pulp grinding disc balance detection device provided by this utility model has a simple structure and is easy to use. It can realize the balance detection of multiple sets of grinding discs in the lowest cost way, and can be adapted to grinding discs of different specifications, making it suitable for diverse production scenarios.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the disclosure of this utility model. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the pulp grinding disc balance detection device provided in the embodiments disclosed in this utility model. Detailed Implementation

[0019] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of systems consistent with some aspects of this invention as detailed in the appended claims.

[0020] After pulp milling, balance testing is required to ensure stable performance during machine use. The traditional method involves weighing each mill disc individually; if a difference is found, the heaviest disc is used as a baseline, and the remaining discs are weighed down with lead until they reach the same weight. This solution addresses the problems of high workload, time waste, and increased costs associated with the above method by providing a pulp mill balance testing device, such as… Figure 1 As shown, it includes an adjustable ruler 1, a balance disc 2, a middle disc 3, and a support mechanism;

[0021] The support mechanism includes a support shaft 7, a jack 8, and a base 10. The base 10 is a frame structure. The lower end of the jack 8 is fixed to the middle of the lower end of the base 10. The lower end of the support shaft 7 is fixed to the upper end of the jack 8. The upper part of the support shaft 7 is fixed to the upper center of the base 10, and the upper end of the support shaft 7 extends out of the base 10. The top of the support shaft 7 is provided with a top sleeve 6.

[0022] Specifically, a positioning sleeve 5 is provided between the upper part of the support shaft 7 and the base 10, that is, the upper part of the support shaft 7 is fixed to the upper center of the base 10 by the positioning sleeve 5.

[0023] The middle plate 3 is fixed to the upper end of the base 10. Scale pointers are provided on both sides of the middle plate 3. The balance disc 2 is placed on the middle plate 3. Specifically, the upper end and middle part of the base 10 have protrusions, and the middle plate 3 is fitted onto these protrusions. The bottom of the middle plate 3 is fixedly connected to the base 10 via adjusting bolts 13. This fixing method ensures the accurate positioning of the middle plate 3.

[0024] The balance disk 2 has scales 11 on both sides of its lower surface, which are perpendicular to the lower surface of the balance disk 2. The pointer of the scale is positioned at zero distance from the scale 11. An adjustable ruler 1 is located at the center of the upper surface of the balance disk 2. The adjustable ruler 1 moves circumferentially around the center of the balance disk 2 at different diameters. A steel ball is located at the center of the bottom of the balance disk 2. The convex surface of the steel ball protrudes from the lower surface of the balance disk 2 and makes point contact with the top sleeve 6. The top sleeve 6 is an existing structure, which typically includes a base that matches the top of the support shaft and a groove for contacting the steel ball.

[0025] The scale pointers are mounted on both sides of the central plate 3 via scale base 12.

[0026] As an improvement to the technical solution, a camera can also be installed on the scale holder 12, and the camera is connected to a computer signal. The position of the scale pointer on the scale 11 can be seen intuitively through the computer monitor;

[0027] The middle plate 3 is provided with positioning holes, and the lower surface of the balance plate 2 is provided with positioning protrusions. The positioning holes and positioning protrusions are matched. This structure ensures that the balance plate remains stable and does not shift after falling.

[0028] The adjustable gauge 1 moves circumferentially around the center of the balance disk 2 at different diameters. Specifically, a fixed sleeve 9 is located at the center of the upper surface of the balance disk 2, and a rotating sleeve 4 is fitted over the fixed sleeve 9. A crossbar is fixed to the rotating sleeve 4, and the adjustable gauge 1 is fitted onto the crossbar. The adjustable gauge 1 slides on the crossbar and is perpendicular to the upper surface of the balance disk 2. The adjustable gauge 1 can also be fastened to a certain position on the crossbar using an adjustable bolt. The circumferential movement of the adjustable gauge 1 adjusts the position of the grinding disc to be tested on the balance disk, determining the center point of the fan-shaped grinding disc. The aforementioned fixed sleeve and rotating sleeve are existing structures, important components used in mechanical systems. Their working principle is similar to that of bearings and bushings, and they are typically made of metal or alloy, possessing a certain degree of hardness and wear resistance. When the shaft rotates in the hole, the fixed sleeve reduces friction and wear while providing support and stability.

[0029] When using the above-mentioned testing device, use jack 8 to support the balance plate 2 and perform balance calibration on the balance plate 2 itself. When the pointers at each position are on the zero line of the scale, the calibration of the balance plate 2 is completed. Release jack 8 to lower the balance plate 2, and place a set of grinding discs on it (as needed, two, four, or twenty-four discs can be placed symmetrically along the diameter distribution direction of the balance plate). Rotate the crossbar so that the bottom end of the adjustable ruler 1 is aligned with the outer edge of the fan-shaped grinding disc, so that the position of the grinding disc to be tested is accurate. That is, use the adjustable ruler 1 on the rotating sleeve to find the center point of the outer circle of the grinding disc. Use jack to raise the balance plate (the balance plate and the middle plate are supported by steel balls to form point contact). At this time, the balance plate will start to fluctuate and become unstable. By observing the scale, you can find out which pointer is not on the zero line. Adjust the position of the grinding discs according to the deviation value. When the pointer deviation on the scale is minimal and stable, select the grinding disc above the zero line and add lead weight. This way, lead can be added at no more than two positions. When all pointers are at the zero line, the weighting work is complete. At this point, the jack can be released to let the balance plate fall on the middle plate, the grinding disc can be removed, and the next set of tests can be started.

[0030] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

[0031] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A pulp mill blade balance detection apparatus, characterized by, Includes an adjustable ruler (1), a balance plate (2), a middle plate (3), and a support mechanism; the support mechanism includes a support shaft (7), a jack (8), and a base (10); the base (10) is a frame structure, the lower end of the jack (8) is fixed to the middle of the lower end of the base (10), the lower end of the support shaft (7) is fixed to the upper end of the jack (8), the upper part of the support shaft (7) is fixed to the upper center of the base (10), and the upper end of the support shaft (7) extends out of the base (10), the top of the support shaft (7) is provided with a top sleeve (6), the middle plate (3) is fixed to the upper end of the base (10), and the middle plate (3) is... The balance disk (2) is placed on the middle plate (3) with a scale pointer on both sides. The scale (11) is perpendicular to the lower surface of the balance disk (2). The scale pointer is set at zero distance from the scale (11). An adjustable ruler (1) is provided at the center of the upper surface of the balance disk (2). The adjustable ruler (1) moves circumferentially around the center of the balance disk (2) with different diameters. A steel ball is provided at the center of the bottom end of the balance disk (2). The convex surface of the steel ball protrudes from the lower surface of the balance disk (2) and contacts the top sleeve (6).

2. The pulp mill blade balance detection apparatus of claim 1, wherein, A positioning sleeve (5) is provided between the upper part of the support shaft (7) and the base (10), that is, the upper part of the support shaft (7) is fixed to the upper center of the base (10) through the positioning sleeve (5).

3. The pulp mill blade balance detection apparatus of claim 1, wherein, The base (10) has a protrusion at the upper end and middle, the middle plate (3) is fitted on the protrusion, and the bottom of the middle plate (3) is fixedly connected to the middle plate (3) by adjusting bolts (13).

4. The pulp mill blade balance detection apparatus of claim 1, wherein, The scale pointer is mounted on both sides of the central plate (3) via the scale base (12).

5. The pulp mill blade balance detection apparatus of claim 4, wherein, A camera is installed on the ruler base (12), and the camera is connected to the computer signal.

6. The pulp mill blade balance detection apparatus of claim 1, wherein, The middle plate (3) is provided with a positioning hole, and the lower surface of the balance plate (2) is provided with a positioning protrusion, and the positioning hole matches the positioning protrusion.

7. The pulp mill blade balance detection apparatus of claim 1, wherein, The adjustable ruler (1) moves on the upper surface of the balance disk (2) with the center of the balance disk (2) as the center point. The specific structure is as follows: a fixed sleeve (9) is provided at the center of the upper surface of the balance disk (2), and a rotating sleeve (4) is attached to the fixed sleeve (9). A crossbar is fixed on the rotating sleeve (4), and an adjustable ruler (1) is fitted on the crossbar. The adjustable ruler (1) slides on the crossbar and is perpendicular to the upper surface of the balance disk (2).

8. The pulp mill blade balance detection apparatus of claim 7, wherein, The adjustable ruler (1) is fastened to a certain position on the crossbar by an adjustable bolt.

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