CN2823661Y

CN2823661Y - Inverter

Info

Publication number: CN2823661Y
Application number: CN 200520024826
Authority: CN
Inventors: 李福存
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-09
Filing date: 2005-09-09
Publication date: 2006-10-04
Anticipated expiration: 2015-09-09

Abstract

The utility model relates to a reversing device, particularly a contact type back stop device which is installed on a shaft extension of a high speed shaft or a middle shaft. The utility model comprises a core shaft, an outer sleeve, a rolling column, a tower spring, bearings, seal pieces and anti-rotation end covers, wherein a groove is arranged on the outer sleeve, and the tower spring is installed in the groove; the staircase-shaped core shaft is sheathed in the outer sleeve, and both sides of a shoulder of the core shaft are provided with the bearings; the outer rings of the bearings from a static fit with the outer sleeve, both sides of each of the bearings are provided with the end covers through the sealing pieces, and the end covers are fixedly connected with the outer sleeve; the core shaft is provided with the rolling column in the space of the groove of the outer sleeve, and both sides of the rolling column are provided with nylon baffle rings; the outer sleeve is fixedly connected with the anti-rotation end cover, and a pin shaft is installed on the anti-rotation end cover. The back stop device has the advantages of large force moment, reliable work, easy disconnection, convenient installation, simple maintenance, etc.

Description

Non-return device

Technical field:

The utility model relates to inversion set, specifically a kind of contact-type non-return device that is installed on high speed shaft or the jack shaft shaft extension.

Background technique:

Non-return device commonly used has contact-type non-return device and contactless non-return device, in the contact-type non-return device, because of its bolt mechanism that rolls that plays braking action is installed on the mandrel, so there is the shortcoming of installation, debugging, troublesome maintenance, it only suits to install and use on slow-speed of revolution axle, and is then incompatible on high speed shaft.

Summary of the invention:

Goal of the invention of the present utility model is intended to solve the disadvantage that existing contact-type non-return device can not use on high speed shaft, a kind of to have check moment big and provide, and reliable operation is freed easily, and is easy for installation, safeguards simple non-return device.

The technological scheme that realizes the object of the invention is: this non-return device comprises mandrel, overcoat, roller, tower spring, bearing, sealing, anti-rotation end cap, this overcoat is provided with groove, tower spring is housed in the groove, be set with stepped mandrel in the overcoat, bearing is equipped with in these mandrel shoulder both sides, this bearing outer ring and this overcoat stationary fit, end cap is equipped with by Sealing in its both sides, and this end cap and overcoat are fixedly connected; Be provided with roller in described mandrel and the overcoat recess space, the nylon baffle ring is equipped with in these roller both sides; Described overcoat and anti-rotation end cap are fixedly connected, and on this anti-rotation end cap bearing pin are housed.

According to the described non-return device of this case, suit especially on high speed shaft or the jack shaft shaft extension is installed and used.In non-return device inside, it has a plurality of rollers to be distributed in by in overcoat groove and the formed raceway of inner core, when equipment runs well, the mandrel rotation, move backward the roller position, with the approaching nothing friction of mandrel operation, when equipment stops or during antiport, add in advance under the vertical effect at tower spring, roller contacts with the overcoat groove with mandrel, enters non-return state reliably.Compare with existing contact-type non-return device, it is big that this non-return device has check moment, reliable operation, free easily, easy for installation, safeguard advantages such as simple, its comprehensive mechanical performance obviously is better than other inversion set, can be widely used in Belt Conveyors, noria, hidden scraper conveyer and the equipment of check requirement is arranged, have vast market prospect.

Description of drawings:

Fig. 1 is a structural representation cut-away view of the present utility model.

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

Embodiment:

Provide a specific embodiment of the present utility model below in conjunction with accompanying drawing.

The described non-return device of present embodiment is made up of mandrel 1, bearing 2, overcoat 3, roller 4, nylon baffle ring 5, end cap 6, anti-rotation end cap 7, bearing pin 8, Sealing 9, tower spring 10, this overcoat 3 is provided with groove 11, tower spring 10 is housed in the groove 11, be set with stepped mandrel 1 in the overcoat 3, bearing 2 is equipped with in these mandrel 1 shoulder both sides, these bearing 2 outer rings and 3 stationary fits of this overcoat, end cap 6 is equipped with by Sealing 9 in its both sides, and this end cap 6 is fixedly connected with overcoat 3; Be provided with roller 4 in groove 11 spaces on described mandrel 1 and the overcoat 3, nylon baffle ring 5 is equipped with in these roller 4 both sides; Described overcoat 3 is fixedly connected with anti-rotation end cap 7, on this anti-rotation end cap bearing pin 8 is housed.

When equipment runs well, mandrel 1 rotation, move backward roller 4 positions, with mandrel 1 near there not being the friction operation, when equipment stops or during antiport, adding in advance under the vertical effect at tower spring 10, roller 4 and mandrel 1 contact with groove 11 on the overcoat 3, enter non-return state reliably.

Claims

1, a kind of non-return device, comprise mandrel, overcoat, roller, tower spring, bearing, Sealing, anti-rotation end cap, it is characterized in that this overcoat is provided with groove, tower spring is housed in the groove, be set with stepped mandrel in the overcoat, bearing is equipped with in these mandrel shoulder both sides, this bearing outer ring and this overcoat stationary fit, end cap is equipped with by Sealing in its both sides, and this end cap and overcoat are fixedly connected; Be provided with roller in described mandrel and the overcoat recess space, the nylon baffle ring is equipped with in these roller both sides; Described overcoat and anti-rotation end cap are fixedly connected, and on this anti-rotation end cap bearing pin are housed.