Application of Dispersion Kneader

The application of a new type of pneumatic clutch in the middle plate rolling mill has been applied to the Hukong Baizhang Fumin Maanshan Iron and Steel Company's medium plate factory for more than a year. It has achieved obvious social benefits and has the value of promotion and application.

Guan Jian's Pneumatic Clutch Axial Force Rolling Mill 1 Proposal At present, the medium-plate rolling mill pressing mechanism commonly used by more than a dozen medium-sized board factories in China has adjusted the roll level of the clutch to seriously affect the production due to different degrees of failure. 1 for our factory 9, the father 2350 roll mill presses the mechanism, the machine uses the electromagnetic clutch, and the electromagnetic clutch has the following problem. The coil is easy to burn out due to long-term energization; the electromagnetic force is generated to overcome the yellowing force, forcing the end face The angular teeth are closed; the electromagnetic clutch is heavy and the outer diameter is large. The end face of the larger electromagnetic clutch is the angular tooth. The angular tooth has axial force in the transmission torque, so that the active angular tooth and the passive angular tooth are in the positive and negative circumference. Unstable in sports, and sometimes even off.

2 Determination of the development plan 2.1 Friction disc clutch Friction disc clutch has simple structure, light weight, small size and driving inertia, and can realize stepless meshing, but it is easy to slip, causing two DC motor speed difference, and when When two motors have faults, the synchronous hand power combiner cannot be guaranteed; 5 DC motor; 6 pneumatic clutch original electromagnetic clutch; 7 stroke away from the reducer; 8 zero adjustment motor; 9 roll opening degree indicator 2.2 end face rectangular teeth The hydraulic clutch face end rectangular tooth type hydraulic clutch has the advantages of small size, convenient operation and easy automatic control. However, the failure of the domestic hydraulic components and the oil leakage of the pipeline are inevitable. At the same time, the manufacturing process of the end face rectangular teeth is complicated and the cost is high.

2.3 Pneumatic clutch The clutch part of the pneumatic clutch is external and internal teeth, and the end face is chamfered. It has the characteristics of small weight, simple manufacturing process and low cost. The outer dimension is half of the original electromagnetic clutch, and there is no axial force and the operation is stable. In summary, the development of a new-shaped pneumatic clutch is the best solution.

3 Pneumatic clutch structure characteristics Working principle and technical parameters 3.1 Structural features Curved tooth outer gear bushings 3, 4, tooth tip and root surface in the tooth width direction, that is, the axial mean path arc shape, so when the outer tooth bushing When engaged with the internal teeth, it is allowed to have an inclination in the vertical plane of the horizontal plane. It has the performance of compensating for the relative offset of the two axes, so that the transmission is stable, the vibration is small, and at the same time, the installation precision is lowered, and the additional force generated by the ring gear 2 on the tapered bearing through the external gear sleeve 3 is greatly avoided, and the force is greatly improved. The life of the bead bearing, reciprocating 134 outer gear bushing; 2 inner ring gear; 5 movable inner ring gear 5 at the right end of the design of a guiding sleeve, to achieve the centering effect, thus ensuring the right and disengaged, flexible and free.

The reciprocating stroke of the movable ring gear 5 is controlled by the cylinder stroke. The design of the pneumatic clutch avoids the impact force and simplifies part of the design.

The left end of the outer toothed sleeve 4 is an angular tooth, and the right end of the movable inner ring gear 5 is an angular tooth, which ensures a smooth fit.

The lubrication method uses dry lubricating oil, and supports the external gear bushing 3 tapered bearing and other bearings to periodically process the composite aluminum base grease.

3.2 Working principle Pneumatic principle system 3. Open the shut-off valve, compress the air into the human gas source processing component joint, the position through the solenoid valve coil to get the current, the motor through the worm reducer to drive the screw down the pressing device; the position through the solenoid valve coil lost Electric, the cylinder piston automatically returns under the action of compressed air. The movable ring gear moves to the left. At this time, the clutch is disengaged, and the pressing screw can be separately adjusted to ensure that the upper roller is adjusted.

The maximum pressure of the gas source is Pmax=0,7MPa; the minimum pressure of the gas source, the normal working pressure P cylinder maximum thrust Ding=19252.1; the clutch working stroke 3 transmits the maximum torque T. The new pneumatic clutch has not used any faults for many years, and the economic benefits are obvious.

This new type of pneumatic clutch can be promoted and used on similar rolling mills in the national plate factory.

On the 32nd page, the Xi'an Jiaotong University Press, 1994.4, Harada, Masahiro, Oda, and the like, with the board support for 7 eves, the Japanese National Patent Office, the Open License Gazette, the privileged offer, the public, 612,818,825, the public, Showa 61, 1986.12.12, Harada Futian Baonan, etc., the floating support device for steel strips, the public charter of the National Patent Office, the privilege of the public, the opening of the shogun, 6263,623, the public display of the 62, 1987.3.20