PAN precursor fiber washing device

Abstract

The utility model relates to a PAN precursor fiber washing device which comprises a washing driving roller unit and a transmission roller unit. Specifically, the driving motor drives the roller set and the transmission roller set; wherein the driving motor driving roller group comprises a driving motor, a speed reduction steering gear, a coupling bearing and a transmission roller; the transmission roller group comprises a speed reduction steering gear, a coupling bearing, a universal coupling, a connecting rod and a transmission roller group; and the driving roller is connected with the coupling bearing and the speed reducer through a driving motor for driving. The PAN precursor washing grading drafting automatic system is easy to control, and grading drafting of the washing driving roller is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to carbon fiber manufacturing technical field, concretely relates to a PAN raw silk fiber washing device. BACKGROUND

[0002] Carbon fiber is a kind of polymer fiber material with carbon content of more than 90%, which has the characteristics of high strength, high modulus, acid and alkali resistance, corrosion resistance, etc., and is widely used in aerospace, transportation track, new energy and other fields, and is an important material basis for national economic development. High-strength and high-modulus carbon fiber has ultra-high stiffness, excellent specific modulus, good environmental stability and dimensional stability. The production process of PAN carbon fiber includes polymerization, spinning, heat treatment, carbonization and other processes. However, the production cost of raw silk accounts for 50-60% of the total cost of carbon fiber, and advanced washing and water pulling processes are needed to reduce solvent waste and reduce the solvent content in the raw silk.

[0003] Document (Huang Daming, Zhang Dayong, Sha Yulin, etc. Washing method influences the structure and performance of PAN raw silk and its carbon fiber [J]. Synthetic fiber industry, 2017, 40 (06): 76-78.) studies the influence of tension condition in beating roller washing process in polyacrylonitrile carbon fiber raw silk production process. In the beating type washing process of polyacrylonitrile carbon fiber raw silk, the size of the washing tension applied will affect the solvent residue in the raw silk production process, and appropriate tension is needed to improve the washing effect. In the multi-stage washing process, the tension of the washed silk is constant, which is not conducive to the reduction of solvent. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a PAN raw silk fiber washing device, which realizes the step-by-step drafting of the washing driving roller by adding a transmission unit to disperse the load pressure of the driving motor.

[0005] The technical scheme for achieving the purpose of the utility model is as follows:

[0006] A PAN raw silk fiber washing device, which comprises a driving motor driving roller set and a transmission roller set.

[0007] The driving motor driving roller set comprises a driving motor, a speed reducer, a shaft coupling bearing and a transmission roller.

[0008] The transmission roller set comprises a speed reducer, a universal shaft coupling, a shaft coupling bearing and a connecting rod and a transmission roller.

[0009] The driving motor in the driving motor driving roller set is connected to the shaft coupling bearing and the speed reducer for driving, and the transmission roller controls the drafting of the transmission roller set.

[0010] The transmission roller group is connected with the driving roller group through the universal joint, the speed reducer, the connecting rod and the joint bearing, disperses the load pressure of the driving motor, and performs the grading draft on the washing driving roller.

[0011] Compared with the prior art, the PAN raw silk washing grading draft automatic control system has the advantages that: (1) the device disperses the load pressure of the driving motor by adding the transmission roller group, and realizes the grading draft. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure diagram of the PAN raw silk washing grading draft device.

[0013] 1, driving motor; 2, speed reducer; 3, universal joint; 4, joint bearing; 5, connecting rod, 6, transmission roller. DETAILED DESCRIPTION

[0014] The utility model is further described in detail in combination with the drawings and the specific implementation:

[0015] Referring to Figure 1 A PAN raw silk washing grading draft device, comprising a driving motor driving roller group and a transmission roller group; wherein the driving motor driving roller group comprises a driving motor 1, a speed reducer 2, a joint bearing 4 and a transmission roller 6; the transmission roller group comprises a speed reducer 2, a universal joint 3 and a joint bearing 4, a connecting rod 5 and a transmission roller 6, and the transmission roller group is connected by the driving motor driving roller through the connecting rod 5, the joint bearing 4 and the universal joint 3, and the speed of each transmission roller 6 is controlled through the speed reducer 2. In the driving motor driving roller group, the top is provided with the driving motor 1, the driving motor 1 is connected with the speed reducer 2, the speed reducer 2 is connected with the joint bearing 4, the joint bearing 4 is connected with the transmission roller 6, and the universal joint 3 is arranged beside the speed reducer 2. In the transmission roller group, the speed reducer 2 is connected with the joint bearing 4, the joint bearing 4 is connected with the transmission roller 6, the universal joint 3 is arranged beside the speed reducer 2, and the universal joint 3 is connected with the connecting rod 5; the connecting rod 5 is connected with the universal joint 3 of the driving motor driving roller group or another transmission roller group. (The driving motor driving roller group and the transmission roller group are connected through the above link, and the transmission rollers are connected with each other through the gear and rotate.)

[0016] The device comprises one driving motor driving roller group and at least three transmission roller groups; the driving motor driving roller group comprises one driving motor driving roller and at least three transmission rollers; and the transmission roller group comprises at least three transmission rollers.

[0017] The active motor driven roller group is arranged between the plurality of transmission roller groups. The water washing and grading draft device is adjusted by constant draft and variable draft through the active motor driven roller group. The active motor driven roller group selects the motor driven roller group with the maximum rotating speed of 70 m / min. The power of the active motor 1 of the water washing and grading draft device is 7.5 KW. The size of the speed reducer steering gear 2 is 30*30*30 cm; the size of the universal coupling 3 is a diameter of 5 cm and a length of 35 cm; the size of the coupling bearing 4 is a length of 15 cm and a width of 20 cm, and the coupling bearing 4 is connected with the transmission roller through a chain; the length of the connecting rod 5 is 250 cm and the diameter of the connecting rod 5 is 5 cm. The grading draft is more effectively performed through the size setting of different components of various assemblies.

[0018] The PAN precursor fibers pass through the grading PAN precursor fiber water washing system composed of a plurality of transmission roller groups and active motor driven roller groups in sequence. The fibers enter the multi-stage fiber water washing system from the fiber inlet end of the first-stage transmission roller group, pass through each stage of transmission roller and active motor driven roller group in sequence, and leave the multi-stage fiber water washing system from the fiber outlet end of the last-stage transmission roller group. The fibers are led from the fiber outlet end of each stage of fiber water washing device to the fiber inlet end of the next stage of fiber water washing device.

Claims

1. A PAN precursor fiber washing device characterized by comprising: Comprising The active motor drive roller group and the transmission roller group; Wherein, the active motor drive roller group comprises an active motor (1), a speed reducer steering gear (2), a shaft coupling bearing (4) and a transmission roller (6); The transmission roller group comprises a speed reducer steering gear (2), a universal coupling (3), a shaft coupling bearing (4) and a connecting rod (5) and a transmission roller (6); The active motor (1) in the active drive roller group is connected with the shaft coupling bearing (4) and the speed reducer steering gear (2) for driving, and the transmission roller (6) is used for drafting control of the transmission roller group; The transmission roller group is connected with the active drive roller group through the universal coupling (3), the speed reducer steering gear (2), the connecting rod (5) and the shaft coupling bearing (4), so as to disperse the bearing pressure of the active motor and control the grading drafting of the washing drive roller.

2. The PAN precursor fiber washing device according to claim 1, characterized in that, The device comprises one active motor drive roller group and at least three transmission roller groups; the active motor drive roller group comprises one active motor drive roller and at least three transmission rollers; and the transmission roller group comprises at least three transmission rollers.

3. The PAN precursor fiber washing device according to claim 1, characterized in that, The active motor drive roller group is arranged between the plurality of transmission roller groups.

4. The PAN precursor fiber washing device according to claim 1, characterized in that, The washing grading drafting device is adjusted by the constant drafting and variable drafting of the active motor drive roller group.

5. The PAN precursor fiber washing device according to claim 4, characterized in that, The active motor drive roller group selects the motor drive roller group with the maximum rotating speed of 70 m / min.

6. The PAN precursor fiber washing device according to claim 4, characterized in that, The power of the active motor (1) of the washing grading drafting device is 7.5 KW.

7. The PAN precursor fiber wash unit of claim 1, wherein, The size of the speed reducer steering gear (2) is 30*30*30 cm; the size of the universal coupling (3) is 5 cm in diameter and 35 cm in length; the size of the shaft coupling bearing (4) is 15 cm in length and 20 cm in width, and the shaft coupling bearing (4) is connected with the transmission roller (6) through a chain; the length of the connecting rod (5) is 250 cm, and the diameter of the connecting rod (5) is 5 cm.

8. The PAN precursor fiber washing device according to claim 1, wherein In the active motor drive roller group, an active motor (1) is arranged, the active motor (1) is connected with a speed reducer steering gear (2), the speed reducer steering gear (2) is connected with a shaft coupling bearing (4), the shaft coupling bearing (4) is connected with a transmission roller (6), and a universal coupling (3) is arranged beside the speed reducer steering gear (2).

9. The PAN precursor fiber washing device according to claim 1, wherein In the transmission roller group, a speed reducer steering gear (2) is connected with a shaft coupling bearing (4), the shaft coupling bearing (4) is connected with a transmission roller (6), a universal coupling (3) is connected beside the speed reducer steering gear (2), the universal coupling (3) is connected with a connecting rod (5); and the connecting rod (5) is connected with the universal coupling (3) of the active motor drive roller group or another transmission roller group.

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