CN201086374Y

CN201086374Y - Sealing mechanism of B type vulcanizing machine center mechanism

Info

Publication number: CN201086374Y
Application number: CNU2007201536577U
Authority: CN
Inventors: 张脉永; 侍光灿; 常毅
Original assignee: Double Coin Group Rugao Tyre Co Ltd
Current assignee: Double Coin Group Rugao Tyre Co Ltd
Priority date: 2007-05-24
Filing date: 2007-05-24
Publication date: 2008-07-16
Anticipated expiration: 2017-05-24

Abstract

The utility model discloses a sealed mechanism of a centering mechanism in a B type vulcanizing machine. An end face seal is added at a joint between an upper transfer ring and a cylinder rod; the end face seal uses a U-shaped silent seal ring to instead of an O-shaped silent seal ring adopted in prior art; a groove is also added on the centering mechanism and a lower transfer ring at the same time; a combining part between the end face seal and the centering mechanism also adopts an O-shaped obturating ring for silent seal. The utility model adopts a U-shaped obturating ring to increase the sealability, reduces the defective index caused by sealing leak because the leak tightness is bad by adopting nitrogen as curing medium, increases the tire quality, and lowers the manufacturing cost.

Description

The sealing mechanism of Type B vulcanizer central authority

Technical field

The utility model relates to a kind of sealing device, especially a kind of sealing device of Type B vulcanizer central authority.

Background technology

The Type B central authority is widely used in mechanical type vulcanizer or fluid pressure type vulcanizer, is the key device of shaper vulcanizer major function, is mainly used in car tyre, the load-carrying tire, and the sulfuration of engineering tire is produced.Present domestic all-steel radial adopts the deoxygenation hot water apparatus to provide superheated water and two kinds of modes of nitrogen as curing medium; the nitrogen sulfuration is compared with water curing; have a large amount of energy of saving; improve tire quality; prolong the capsule life-span; enhance productivity the rate of reducing the number of rejects and seconds, advantages such as handling safety and protection environment.

Adopt nitrogen as the sealing property proposition higher requirement of curing medium than the upper and lower clamp ring of using superheated water vulcanization medium centring machine structure, with nitrogen as in the curing medium, the percent defective that produces because of the central authority sealing leak accounts for scraps more than 50% of total amount, punishes severely the quality and the increase manufacturing cost that influences tire.

The upper and lower clamp ring of existing sealing and the piston rod of central authority, O type circle static seal is all adopted in the sealing of ring seat, the piston rod of its central authority and ring seat are that vulcanizer device fabrication producer makes, and capsule on, good down ring and steel ring have tire production producer to make, because of influences such as frequent movement and effect of capsule external force and HTHP operating environment often cause O RunddichtringO sealing surface wear, cause that very easily nitrogen leaks in actual production process, O type circle is shorter service life simultaneously.

The utility model content

In order to overcome the above problems, the utility model provides a kind of sealing device of Type B vulcanizer central authority, it is made up of last clamp ring, lower clamping, piston rod, O RunddichtringO, U RunddichtringO, central authority ring seat, it is characterized in that: described piston rod and last clamp ring be sealed into end face seal in conjunction with O type circle static seal, lower clamping and central authority ring seat be sealed into grooved sealing in conjunction with O type circle static seal.

Described end face seal is to use the U RunddichtringO in the end.

Described static seal is the O RunddichtringO, places in the square type seal groove.

Described flute profile is sealed into lower clamping and central authority ring seat junction processes a groove, and groove is built-in

The U RunddichtringO.

Good effect of the present utility model is: increase place end face seal and end face seal employing U-shaped circle at last clamp ring and piston rod junction, making full use of nitrogen gas pressure makes it push the effect that reaches abundant sealing mutually with end face, central authority increases by a groove on lower clamping, also adopt the U-shaped sealing ring to increase sealing effectiveness in sealing and central authority cooperation place, thereby effectively solve the leakage problem of central authority capsule, reduce the tire scrappage, increase the benefit.

Description of drawings

Fig. 1 improves preceding sealed structural representation for the utility model

Fig. 2 is a sealed structural representation of the present utility model

Fig. 3 is the hermetically-sealed construction partial enlarged drawing of clamp ring and piston rod on the utility model

Fig. 4 is the hermetically-sealed construction partial enlarged drawing of the utility model lower clamping and central authority ring seat

The specific embodiment

Fig. 1 is existing sealing mechanism, it mainly is made up of last clamp ring 1, lower clamping 2, piston rod 3, center ring seat 4, O RunddichtringO 5, steel ring 6, last clamp ring 1 and piston rod 3 be sealed into two O RunddichtringO 5 static seals, the sealing of lower clamping and center ring seat also is two O RunddichtringO 5 static seals.

Fig. 2 is a structural representation of the present utility model, mainly is made up of last clamp ring 1, lower clamping 2, piston rod 3, O RunddichtringO 5 static seals, center ring seat U RunddichtringO 7.In order to strengthen going up the sealing of clamp ring 1 and piston rod 3, the top processing of piston rod 3 is diminished, form end face, just increase end face seal in the end, U RunddichtringO 7 is used in end face seal, sealing between lower clamping 2 and the center ring seat 4, it is processing grooved sealing surface 9 on the water surface smooth seal face of lower clamping, built-in U RunddichtringO, in on the capsule 8, the nitrogen of certain pressure is arranged along rising on the gap of piston rod 3 and last clamp ring 1, run into the static seal that two O RunddichtringOs are formed, the environment because of action of piston rod frequent activities and capsule HTHP causes O RunddichtringO sealing surface wear, nitrogen leaks can be to the U RunddichtringO, (see figure 3) has the nitrogen of certain pressure U type circle can be pressed to the piston rod end face, thereby makes that the gap becomes small realization sealing between U type circle and the end face.

Grooved sealing surface 9 is processed in sealing (as Fig. 4) between lower clamping 2 and the center ring seat 4 on the water surface smooth seal face of lower clamping, built-in U RunddichtringO, there is the nitrogen of certain pressure to enter in the U RunddichtringO through the O RunddichtringO, because nitrogen gas pressure effect, can make that the gap becomes small between U type circle and each end face, thereby stop nitrogen to external leakage.

Claims

1. the sealing mechanism of a Type B vulcanizer central authority, form by last clamp ring, lower clamping, piston rod, O RunddichtringO, U RunddichtringO, central authority ring seat, it is characterized in that: described piston rod and last clamp ring be sealed into end face seal in conjunction with O type circle static seal, lower clamping and central authority ring seat be sealed into grooved sealing in conjunction with O type circle static seal.

2. the sealing mechanism of a kind of Type B vulcanizer central authority according to claim 1 is characterized in that: described end face seal is for using the U RunddichtringO in the end.

3. the sealing mechanism of a kind of Type B vulcanizer central authority according to claim 1 is characterized in that: described O type circle static seal is the O RunddichtringO, places in the square type seal groove.

4. the sealing mechanism of a kind of Type B vulcanizer central authority according to claim 1 is characterized in that: described flute profile sealing is that lower clamping and central authority ring seat junction process a groove, the built-in U RunddichtringO of groove.