CN203783897U

CN203783897U - Floating sealing device for impeller end surface of roots air blower and wall plate

Info

Publication number: CN203783897U
Application number: CN201420183823.8U
Authority: CN
Inventors: 赵复礼
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-17
Filing date: 2014-04-16
Publication date: 2014-08-20
Anticipated expiration: 2024-04-16

Abstract

The utility model discloses a floating sealing device for an impeller end surface of a roots air blower and a wall plate. The floating sealing device comprises an impeller, an end surface cover seat, the wall plate, a check block, a spring, a seal strip and a T-shaped slot, and is characterized in that the end surface cover seat is arranged on the end surface of the impeller, and the T-shaped slot is formed in the end surface cover seat and internally provided with the raised type sealing strip, and keeps a sealing state together with the wall plate by means of the supporting of the spring in the slot. The floating sealing device has the beneficial effects that the sealing strip on the impeller of the roots air blower and the wall plate are in a micro-pressure contact state due to the action of the spring, the sealing strip does not extend due to the limiting of a boss after friction for certain time, so that a friction pair of the sealing strip and the wall plate in zero clearance or microclearance can be formed, and the zero clearance or microclearance is the most desirable working clearance, the self circulation of air in the blower due to clearance air leakage can be reduced, the power and high-rise (negative) pressure working situation can be improved, and overhigh temperature in the blower caused due to self circulation of air in the blower can also be reduced.

Description

A kind of impeller end face of Roots blower and wallboard floating seal

Technical field

The utility model relates to a kind of impeller end face of Roots blower and the impeller end face of the sealing technique of wallboard, particularly a kind of Roots blower and wallboard floating seal.

Background technique

Roots blower, Roots pump are from coming out so far, between its impeller end face and wallboard, keep Spielpassung always, in case uppermost leaf wheel and wallboard scraping cause blower fan to damage and are stuck, the wind self-loopa in the machine that formed but leak out in this gap, thereby cause large power loss and deficiency in draught and pressure to be difficult to raise, especially be difficult to adapt to the requirement that modern project boosts to Roots blower because of technique needs, therefore be badly in need of a kind of seal arrangement and improve Spielpassung defect, but on market, there is no such device.

Summary of the invention

For above-mentioned deficiency, the utility model provides a kind of impeller end face and wallboard floating seal of Roots blower.

The utility model is achieved through the following technical solutions: a kind of impeller end face of Roots blower and wallboard floating seal, formed by impeller, end face cage, wallboard, block, spring, Stamping Steel Ribbon and T-shaped groove, it is characterized in that: described end face cage is arranged on impeller end face, on end face cage, be processed with T-shaped groove, convex Stamping Steel Ribbon is installed in groove, and rely on spring supporting in groove its with wallboard maintenance sealing state.Wherein, stainless steel manufacture anti-aging, high temperature resistant and that self-lubricating property is excellent for Stamping Steel Ribbon, Stamping Steel Ribbon keeps being slightly larger than the activity in impeller end face and wallboard gap in T-shaped groove, a block is installed by T-shaped groove cylindrical portion, to prevent that the Stamping Steel Ribbon that rotary centrifugal force causes from flying out, within certain service time, Stamping Steel Ribbon and wallboard are micro-pressure contact condition because of spring action, now between running-in period, treat that the break-in of convex Stamping Steel Ribbon is spacing no longer overhanging to boss, break-in finishes at once, now forms impeller end face and wallboard in zero clearance or the break-in pair of microgap.

The usefulness of this model utility is: the Stamping Steel Ribbon in Roots air blower and wallboard are micro-pressure contact condition because of spring action, through certain hour break-in, Stamping Steel Ribbon because of boss spacing no longer overhanging, now form Stamping Steel Ribbon and wallboard in zero clearance or the break-in pair of microgap, it is a kind of optimal working clearance, reduce because of the gap wind self-loopa in the machine causing of leaking out, improved effect and promotion (bearing) press operating mode, also reduced simultaneously because of the built-in temperature that in machine, wind self-loopa causes too high.

Brief description of the drawings

Fig. 1 is a kind of impeller end face of Roots blower and the internal view of wallboard floating seal, Fig. 2 is a kind of impeller end face of Roots blower and the partial sectional view of wallboard floating seal, and Fig. 3 is a kind of impeller end face of Roots blower and the structural representation of wallboard floating seal.

In Fig. 1,1, impeller, 2, end face cage, 3, wallboard, 4, block, 5, spring, 6, Stamping Steel Ribbon.

In Fig. 2 and Fig. 3,7, T-shaped groove.

Embodiment

A kind of impeller end face of Roots blower and wallboard floating seal, by impeller 1, end face cage 2, wallboard 3, block 4, spring 5, Stamping Steel Ribbon 6 and T-shaped groove 7 form, it is characterized in that: described end face cage 2 is arranged on impeller 1 end face, on end face cage 2, be processed with T-shaped groove 7, convex Stamping Steel Ribbon 6 is installed in groove, and the spring 5 in dependence groove supports it and wallboard 3 keeps sealing state, wherein, Stamping Steel Ribbon 6 use are anti-aging, the stainless steel manufacture of high temperature resistant and self-lubricating property excellence, Stamping Steel Ribbon 6 is slightly larger than the activity in impeller 1 end face and wallboard 3 gaps in the interior maintenance of T-shaped groove 7, a block 4 is installed by T-shaped groove 7 cylindrical portions, to prevent that the Stamping Steel Ribbon 6 that rotary centrifugal force causes from flying out, within certain service time, Stamping Steel Ribbon 6 is micro-pressure contact condition with wallboard 3 because spring 5 acts on, now between running-in period, treat that 6 break-ins of convex Stamping Steel Ribbon are spacing no longer overhanging to boss, break-in finishes at once, now form impeller 1 end face and wallboard 3 in zero clearance or the break-in pair of microgap.

Claims

1. the impeller end face of a Roots blower and wallboard floating seal, by impeller, end face cage, wallboard, block, spring, Stamping Steel Ribbon and T-shaped groove composition, it is characterized in that: described end face cage is arranged on impeller end face, on end face cage, be processed with T-shaped groove, convex Stamping Steel Ribbon is installed in groove, and the spring supporting in dependence groove itself and wallboard keep sealing state, wherein, Stamping Steel Ribbon is with anti-aging, the stainless steel manufacture of high temperature resistant and self-lubricating property excellence, Stamping Steel Ribbon keeps being slightly larger than the activity in impeller end face and wallboard gap in T-shaped groove, a block is installed by T-shaped groove cylindrical portion, to prevent that the Stamping Steel Ribbon that rotary centrifugal force causes from flying out, within certain service time, Stamping Steel Ribbon and wallboard are micro-pressure contact condition because of spring action, now between running-in period, treat that the break-in of convex Stamping Steel Ribbon is spacing no longer overhanging to boss, break-in finishes at once, now form impeller end face and wallboard in zero clearance or the break-in pair of microgap.