China high quality Paper Industrial Machinery Stock Pulp Refining Double Disc Refiner with Free Design Custom

제품 설명

제품 설명

더블 디스크 리파이너는 컴팩트한 구조, 적은 설치 공간, 높은 효율, 낮은 에너지 소비, 우수한 적응성, 편리한 조작, 유연한 조정 및 손쉬운 유지보수 등의 특징을 갖춘 타격 장비입니다. 현재로서는 비교적 이상적인 연속 펄프 제조 시스템입니다. 제지 공장은 펄프 제조 공정에 따라 단일 세트 또는 여러 세트를 병렬 또는 직렬로 운전할 수 있습니다.

상세 사진

 

우리의 장점

DD 시리즈 이중 디스크 정제기는 제지 산업의 연속 타격 공정에 사용 가능합니다. 이 장비는 원펄프, 화학 목재 펄프, 기계 펄프 및 폐지 펄프의 연속 타격에 적합합니다.
*특수 설계된 회전 디스크는 재고 관리 기능에 따라 자동으로 정렬됩니다.

이점 :
*정제 조건에 따라 전기기계 장치를 통해 간극을 조절할 수 있습니다.

*정련 디스크를 쉽고 빠르게 교체할 수 있는 특수 공구.

*안정적이고 신뢰할 수 있는 작동을 보장하는 고강도 용접 구조
 

*타격 효과는 안정적이고 균일합니다.

주요 특징

1. 펄프의 타격도와 습중량을 개선합니다. 
2. 해당 장비는 자동 제어 시스템을 갖추고 있어 일정한 출력 또는 일정한 에너지 소비로 작동할 수 있습니다. 
3. 회전 디스크와 메인 샤프트는 스플라인 방식으로 연결되어 두 연삭 영역의 압력 균형을 유지합니다.
4. 진동 효과는 안정적이고 균일합니다.

제품 매개변수

품목 유형	DD-380	DD-450	DD-500	DD-550	DD-600	DD-660	DD-720	DD-900	DD-1100
판의 직경	Φ380	Φ450	Φ500	Φ550	Φ600	Φ660	Φ720	Φ900	Φ1100
생산량(톤/일)	6-20	8~80	10~100	10~120	12~150	15~200	15~250	20~400	40~800
힘	37	90~160	132~200	160~250	185~315	220~500	250~800	315~1000	400~1800
일관성	3%~5%

구조와 원리

이 정제기는 본체, 연결 장치 및 공급 장치 등으로 구성됩니다.

1.본문

정제기는 2개의 CZPT 섹션으로 구성됩니다. 마모 패턴의 경사각에 따라 4개의 CZPT 플레이트(좌측 2개, ​​우측 2개)가 고정됩니다. 좌측 플레이트 2개는 기계 본체의 내벽과 회전 디스크 내부에 고정되고, 우측 플레이트 2개는 회전 디스크 외부와 이동식 받침대에 고정되어 2개의 CZPT 섹션을 형성합니다(설치 지침은 도면 참조). 원료는 유입관을 통해 CZPT 섹션으로 이송됩니다. 분쇄 및 정제 과정을 거친 후, CZPT 섹션에서 펌프를 통해 본체로 유입되고, 최종적으로 배출관을 통해 배출됩니다.

메인 샤프트에는 2개의 베어링이 있으며, 베어링 받침대로 고정되어 나일론 컬럼 핀을 통해 모터에 연결됩니다. 턴테이블은 메인 샤프트의 반대쪽에 있습니다. 턴테이블 양 끝에는 CZPT 디스크가 있으며, 턴테이블은 이 두 CZPT 디스크 사이에서 회전하며 압력에 의해 축 방향으로 이동합니다.

이동식 받침대는 축 방향으로 움직이는 이송 기어를 통해 조정되어 두 개의 CZPT 섹션 사이의 간격을 조절합니다. 페더 키는 이동식 받침대와 기계 케이스 사이에 설치되며 사다리꼴 나사에 의해 밀립니다.

덮개는 핀롤로 케이스와 연결된 용접 구조입니다. 덮개를 열기 전에 가동 받침대 전체를 덮개 안으로 밀어 넣고 잠금 볼트를 풀어주십시오. 덮개를 닫기 전에 표면을 깨끗하게 유지하고 가동 받침대를 덮개 안으로 완전히 밀어 넣으십시오. 그런 다음 볼트를 균일하게 조여 고정하십시오.

2. 커플링

이 커플링은 분해 및 유지보수가 용이한 나일론 컬럼 핀으로 연결되어 있습니다. 이송 및 배출 시 변위 요구 사항을 충족하고 토크를 전달합니다.

3. 이송 기어

이송 기어는 웜 기어 감속 시스템을 덮습니다. 웜 기어의 힘으로 사다리꼴 나사가 회전하여 가동 받침대를 앞뒤로 움직입니다. 가동 받침대는 모터가 한 바퀴 회전할 때마다 0.23mm씩 이동합니다. 시계 방향으로 회전하면 앞으로 이동하고, 반시계 방향으로 회전하면 뒤로 이동합니다.

현장 사용

 

회사 소개

Analytical Approaches to Estimating Contact Pressures in Spline Couplings

A spline coupling is a type of mechanical connection between 2 rotating shafts. It consists of 2 parts – a coupler and a coupling. Both parts have teeth which engage and transfer loads. However, spline couplings are typically over-dimensioned, which makes them susceptible to fatigue and static behavior. Wear phenomena can also cause the coupling to fail. For this reason, proper spline coupling design is essential for achieving optimum performance.

Modeling a spline coupling

Spline couplings are becoming increasingly popular in the aerospace industry, but they operate in a slightly misaligned state, causing both vibrations and damage to the contact surfaces. To solve this problem, this article offers analytical approaches for estimating the contact pressures in a spline coupling. Specifically, this article compares analytical approaches with pure numerical approaches to demonstrate the benefits of an analytical approach.
To model a spline coupling, first you create the knowledge base for the spline coupling. The knowledge base includes a large number of possible specification values, which are related to each other. If you modify 1 specification, it may lead to a warning for violating another. To make the design valid, you must create a spline coupling model that meets the specified specification values.
After you have modeled the geometry, you must enter the contact pressures of the 2 spline couplings. Then, you need to determine the position of the pitch circle of the spline. In Figure 2, the centre of the male coupling is superposed to that of the female spline. Then, you need to make sure that the alignment meshing distance of the 2 splines is the same.
Once you have the data you need to create a spline coupling model, you can begin by entering the specifications for the interface design. Once you have this data, you need to choose whether to optimize the internal spline or the external spline. You’ll also need to specify the tooth friction coefficient, which is used to determine the stresses in the spline coupling model 20. You should also enter the pilot clearance, which is the clearance between the tip 186 of a tooth 32 on 1 spline and the feature on the mating spline.
After you have entered the desired specifications for the external spline, you can enter the parameters for the internal spline. For example, you can enter the outer diameter limit 154 of the major snap 54 and the minor snap 56 of the internal spline. The values of these parameters are displayed in color-coded boxes on the Spline Inputs and Configuration GUI screen 80. Once the parameters are entered, you’ll be presented with a geometric representation of the spline coupling model 20.

Creating a spline coupling model 20

The spline coupling model 20 is created by a product model software program 10. The software validates the spline coupling model against a knowledge base of configuration-dependent specification constraints and relationships. This report is then input to the ANSYS stress analyzer program. It lists the spline coupling model 20’s geometric configurations and specification values for each feature. The spline coupling model 20 is automatically recreated every time the configuration or performance specifications of the spline coupling model 20 are modified.
The spline coupling model 20 can be configured using the product model software program 10. A user specifies the axial length of the spline stack, which may be zero, or a fixed length. The user also enters a radial mating face 148, if any, and selects a pilot clearance specification value of 14.5 degrees or 30 degrees.
A user can then use the mouse 110 to modify the spline coupling model 20. The spline coupling knowledge base contains a large number of possible specification values and the spline coupling design rule. If the user tries to change a spline coupling model, the model will show a warning about a violation of another specification. In some cases, the modification may invalidate the design.
In the spline coupling model 20, the user enters additional performance requirement specifications. The user chooses the locations where maximum torque is transferred for the internal and external splines 38 and 40. The maximum torque transfer location is determined by the attachment configuration of the hardware to the shafts. Once this is selected, the user can click “Next” to save the model. A preview of the spline coupling model 20 is displayed.
The model 20 is a representation of a spline coupling. The spline specifications are entered in the order and arrangement as specified on the spline coupling model 20 GUI screen. Once the spline coupling specifications are entered, the product model software program 10 will incorporate them into the spline coupling model 20. This is the last step in spline coupling model creation.

Analysing a spline coupling model 20

An analysis of a spline coupling model consists of inputting its configuration and performance specifications. These specifications may be generated from another computer program. The product model software program 10 then uses its internal knowledge base of configuration dependent specification relationships and constraints to create a valid three-dimensional parametric model 20. This model contains information describing the number and types of spline teeth 32, snaps 34, and shoulder 36.
When you are analysing a spline coupling, the software program 10 will include default values for various specifications. The spline coupling model 20 comprises an internal spline 38 and an external spline 40. Each of the splines includes its own set of parameters, such as its depth, width, length, and radii. The external spline 40 will also contain its own set of parameters, such as its orientation.
Upon selecting these parameters, the software program will perform various analyses on the spline coupling model 20. The software program 10 calculates the nominal and maximal tooth bearing stresses and fatigue life of a spline coupling. It will also determine the difference in torsional windup between an internal and an external spline. The output file from the analysis will be a report file containing model configuration and specification data. The output file may also be used by other computer programs for further analysis.
Once these parameters are set, the user enters the design criteria for the spline coupling model 20. In this step, the user specifies the locations of maximum torque transfer for both the external and internal spline 38. The maximum torque transfer location depends on the configuration of the hardware attached to the shafts. The user may enter up to 4 different performance requirement specifications for each spline.
The results of the analysis show that there are 2 phases of spline coupling. The first phase shows a large increase in stress and vibration. The second phase shows a decline in both stress and vibration levels. The third stage shows a constant meshing force between 300N and 320N. This behavior continues for a longer period of time, until the final stage engages with the surface.

Misalignment of a spline coupling

A study aimed to investigate the position of the resultant contact force in a spline coupling engaging teeth under a steady torque and rotating misalignment. The study used numerical methods based on Finite Element Method (FEM) models. It produced numerical results for nominal conditions and parallel offset misalignment. The study considered 2 levels of misalignment – 0.02 mm and 0.08 mm – with different loading levels.
The results showed that the misalignment between the splines and rotors causes a change in the meshing force of the spline-rotor coupling system. Its dynamics is governed by the meshing force of splines. The meshing force of a misaligned spline coupling is related to the rotor-spline coupling system parameters, the transmitting torque, and the dynamic vibration displacement.
Despite the lack of precise measurements, the misalignment of splines is a common problem. This problem is compounded by the fact that splines usually feature backlash. This backlash is the result of the misaligned spline. The authors analyzed several splines, varying pitch diameters, and length/diameter ratios.
A spline coupling is a two-dimensional mechanical system, which has positive backlash. The spline coupling is comprised of a hub and shaft, and has tip-to-root clearances that are larger than the backlash. A form-clearance is sufficient to prevent tip-to-root fillet contact. The torque on the splines is transmitted via friction.
When a spline coupling is misaligned, a torque-biased thrust force is generated. In such a situation, the force can exceed the torque, causing the component to lose its alignment. The two-way transmission of torque and thrust is modeled analytically in the present study. The analytical approach provides solutions that can be integrated into the design process. So, the next time you are faced with a misaligned spline coupling problem, make sure to use an analytical approach!
In this study, the spline coupling is analyzed under nominal conditions without a parallel offset misalignment. The stiffness values obtained are the percentage difference between the nominal pitch diameter and load application diameter. Moreover, the maximum percentage difference in the measured pitch diameter is 1.60% under a torque of 5000 N*m. The other parameter, the pitch angle, is taken into consideration in the calculation.