CN100387368C

CN100387368C - Water circulation exchanger

Info

Publication number: CN100387368C
Application number: CNB2005101148774A
Authority: CN
Inventors: 王溥岚
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-17
Filing date: 2005-11-17
Publication date: 2008-05-14
Anticipated expiration: 2025-11-17
Also published as: CN1966167A

Abstract

The invention relates to an exchanger connected to the working roller of rolling machine to supply water, wherein it comprises hollow rotation axle, axial sheath, connecting base, three-way connector, central cylinder and bended head; the water inlet through hole is through to the central cylinder and bended head to form water inlet channel; the water outlet through hole is through to the three-way connector via the channel between rotation axle and central cylinder to form entrance; the rotation axle and axial sheath have at least one couple of arc grooves embedded with several steel balls between then; at the connection surface between rotation axle and three-way connectors, between the central cylinder and three-way connector there are skeleton oil sealing and axial rotation sealing ring, and O-shape sealing ring. The invention has stable rotation and better sealing effect.

Description

Water circulation exchanger

Technical field

The present invention relates to a kind of water circulation exchanger, is to be used for the interchanger of also giving periodical feeding in the roller that metallurgical industry is connected with operation roll of mill specifically, also can be used in chemical industry, the printing and dyeing industry corresponding apparatus.

Background technology

Milling train in the metallurgical industry is in the continuous operation process, and the working roll of its rotation is owing to contact with high-temperature metal for a long time, and temperature is very high, must be provided with cooling device, and it generally adopts to the way of importing cooling water in the working roll continuously.Thereby, being provided with the water circulation exchange joint (being water circulation exchanger) that is communicated with it, because being in operation, working roll needs to rotate continuously, so water circulation exchanger becomes the difficult problem in the design with working roll one end.At present, in the product of producing, adopt the mechanical single seal pattern of spring compression at the sealing position both at home and abroad, rotatable parts adopt ball bearing, its complex structure, bulky, and involve great expense.And adopt in the hermetically-sealed construction of V-type circle and the combination of O type circle, the center of rotation instability of rotatable parts causes uneven wearing and tearing easily, thereby the service life of joint is very low.

Summary of the invention

The present invention provides a kind of stability of rotation in order to overcome the defective of prior art, good sealing effect, the water circulation exchanger of long service life.

Water circulation exchanger of the present invention, comprise hollow rotating shaft and the axle sleeve that is rotationally connected with it, wherein between rotating shaft and axle sleeve, be respectively equipped with at least one pair of circular groove that embeds plurality of steel balls on the corresponding face of cylinder, the flange that the lower end of rotating shaft is connected as a single entity by the lower end with this rotating shaft and the upper end of Connection Block are tightly connected, the bottom of Connection Block is tightly connected by flange and the working roll that the bottom with this Connection Block is connected as a single entity, and is provided with in Connection Block and the corresponding water-in and water-out through hole of working roll; The upper end of axle sleeve is sealedly connected and fixed by flange and three-way connection lower end; The three-way connection lower end is passed in the upper end of rotating shaft, and is provided with outside framework oil seal between the face and axle is used the rotary seal circle being rotationally connected of the upper end of this rotating shaft and three-way connection lower end, and the combination sealing parts that constitute of O RunddichtringO; In rotating shaft and three-way connection, central tube is housed, the lower end of central tube is tightly connected with the inner flange that is positioned at the Connection Block center, and with the water inlet through hole be communicated with, the upper end of central tube is rotationally connected with the three-way connection upper end after passing the centring ring that is fixed on the three-way connection upper end, being rotationally connected of the blind flange of fixedlying connected in central tube and three-way connection upper end is provided with another group outside framework oil seal between the face and axle is used the rotary seal circle, and the combination sealing parts that constitute of O RunddichtringO; The central tube upper end of rotating is communicated with elbow, and elbow lower end and blind flange connect as one; The passage that constitutes between the water outlet through hole around the water inlet through hole is by rotating shaft and central tube is communicated with three-way connection.

Water circulation exchanger of the present invention wherein is provided with the through hole that embeds steel ball on axle sleeve, lubricating component and through hole that the through type forced filling oil cup is housed are equipped, and is communicated with circular groove.

The rotating part of water circulation exchanger of the present invention embeds the steel ball ring that rolls, and reduces rotary resistance, and rotating shaft and axle sleeve all adopt quality material through PROCESS FOR TREATMENT such as modified, quenchings, and its composition surface all is coated with hard chromium layers, has strengthened abrasion resistance and antiseptic property.The sealing means of rotatable parts adopts axle to constitute with rotary seal circle and outside framework oil seal, and the O RunddichtringO places the fixing seal that connects between end face to constitute whole combination sealing parts, help to keep the liquid film between sealing surface stable like this, and prevent that fluid from vaporizing at the liquid film place.The central tube upper end is rotated equipped centring ring and is made central tube and rotating shaft smooth rotation, has both made central tube and rotating shaft that off-centre is arranged slightly, and outside framework oil seal also can obtain good sealing effectiveness.Reasonable integral structure of the present invention is convenient to installation and maintenance, long service life.

Description of drawings

Fig. 1 is a water circulation exchanger structural principle generalized section of the present invention;

Fig. 2 is the elevational schematic view of Fig. 1 (advance one and go out structure for recirculated water one advances scene 2 or two on the Connection Block shown in the figure).

The specific embodiment

As seen from Figure 1, the axle sleeve 2 that water circulation exchanger of the present invention comprises hollow rotating shaft 1 and is rotationally connected with it, wherein between rotating shaft 1 and axle sleeve 2, be respectively equipped with two pairs of circular grooves that embed plurality of steel balls 3 on the corresponding face of cylinder, between the two pivoting friction is become and steel ball 3 between rolling friction, the flange that the lower end of rotating shaft 1 is connected as a single entity by the lower end with this rotating shaft 1 and the upper end of Connection Block 4 are tightly connected, and flange that the bottom of Connection Block 4 is connected as a single entity by the bottom with this Connection Block 4 and the working roll on the milling train are tightly connected; The upper end of axle sleeve 2 is connected and fixed by flange and three-way connection 7 lower ends; Three-way connection 7 lower ends are passed in the upper end of rotating shaft 1, and be provided with the rotary seal parts that outside framework oil seal 9 and axle constitute with rotary seal circle 10 between the face being rotationally connected of the upper end of this rotating shaft 1 and three-way connection 7 lower ends, and O RunddichtringO 13 places the fixing seal that connects between end face to constitute whole combination sealing parts; In rotating shaft 1 and three-way connection 7, central tube 11 is housed, the lower end of central tube 11 is tightly connected with the inner flange that is positioned at Connection Block 4 centers, and with the water inlet through hole 5 be communicated with, its upper end is rotationally connected with three-way connection 7 upper ends, the upper end of center letter 11 is passed centring ring 8 backs that are fixed on three-way connection 7 upper ends and is rotationally connected with three-way connection 7 upper ends, being rotationally connected of the blind flange 14 of fixedlying connected with three-way connection 7 upper ends at central tube 11 be provided with between the face another group outside framework oil seal 9 ' and axle with rotary seal circle 10 ', and the combination sealing parts of O RunddichtringO 13 ' formation; Central tube 11 upper ends of rotating are communicated with elbow 12, and elbow 12 is by fixedlying connected with three-way connection 7 upper ends with its blind flange that is connected as a single entity 14; Around water inlet through hole 5 is outer equally distributed 3 water outlet through holes 6 by rotating shaft 1 and central tube 11 between the passage of formation be communicated with three-way connection 7, as shown in Figure 2.During concrete enforcement, water-in and water-out through

hole

5,6 in the Connection Block 4 must be corresponding with aquaporin in the working roll, Fig. 2 is three structures that go out into, also can be designed to two structures of advancing scene 2,4 through holes promptly evenly distribute in Connection Block 4, wherein be communicated with two through holes and another channel connection of all the other symmetries after Dui Cheng two connections with central tube 11 lower ends.Certainly, so-called intake tunnel or exhalant canal can exchange, and are connected and can realize as long as the elbow 12 and the other end of three-way connection 7 exchanged.

Operation principle of the present invention: cooling water flows out after water inlet through hole 5 enters the working roll internal channel through elbow 12, central tube 11, flow out from three-way connection 7 behind the passage outside water outlet through hole 6 enters central tube 11, make the cooling of rotation work roller, Connection Block 4 in the work in the water circulation exchanger, rotating shaft 1 and central tube 11 all rotate synchronously with working roll, axle sleeve 2, three-way connection 7 and elbow 12 are motionless, are respectively equipped with the combination sealing parts in the upper end of rotating shaft 1 and central tube 11 and seal.

On axle sleeve 2, be provided with the through hole 16 that embeds steel ball 3, lubricating component and through hole 16 that through type forced filling oil cup 15 is housed are equipped, and are communicated with circular groove.Lubricating component can be designed to cover plate or the nipple form equipped with through hole 16, fixedlys connected with axle sleeve 2, blocks steel ball 3 on the one hand, gives again simultaneously and injects lubricant in the circular groove.

Claims

1. water circulation exchanger, the axle sleeve (2) that comprises hollow rotating shaft (1) and be rotationally connected with it, it is characterized in that being respectively equipped with on the face of cylinder corresponding between described rotating shaft (1) and axle sleeve (2) at least one pair of circular groove that embeds plurality of steel balls (3), the flange that the lower end of described rotating shaft (1) is connected as a single entity by the lower end with this rotating shaft (1) and the upper end of Connection Block (4) are tightly connected, the bottom of described Connection Block (4) is tightly connected by flange and the working roll that the bottom with this Connection Block (4) is connected as a single entity, and is provided with working roll is corresponding to advance in described Connection Block (4), water outlet through hole (5,6); The upper end of described axle sleeve (2) is sealedly connected and fixed by flange and three-way connection (7) lower end; Described three-way connection (7) lower end is passed in the upper end of described rotating shaft (1), and be provided with outside framework oil seal (9) and axle between the face with rotary seal circle (10), and the combination sealing parts that constitute of O RunddichtringO (13) being rotationally connected of the upper end of this rotating shaft (1) and three-way connection (7) lower end; In described rotating shaft (1) and described three-way connection (7), central tube (11) is housed, the lower end of described central tube (11) is tightly connected with the inner flange that is positioned at described Connection Block (4) center, and be communicated with described water inlet through hole (5), the upper end of described central tube (11) is passed centring ring (8) back that is fixed on described three-way connection (7) upper end and is rotationally connected with described three-way connection (7) upper end, being rotationally connected of the blind flange (14) of fixedlying connected in described central tube (11) and described three-way connection (7) upper end is provided with another group outside framework oil seal (9 ') and axle with rotary seal circle (10 ') between the face, and the combination sealing parts of O RunddichtringO (13 ') formation; Central tube (11) upper end of rotating is communicated with elbow (12), and described elbow (12) lower end and described blind flange (14) connect as one; Being positioned at described water inlet through hole (5) described water outlet through hole (6) all around is communicated with described three-way connection (7) by the passage that constitutes between described rotating shaft (1) and the described central tube (11).

2. water circulation exchanger according to claim 1, it is characterized in that on described axle sleeve (2), be provided with the through hole (16) that embeds described steel ball (3), lubricating component and described through hole (16) that through type forced filling oil cup (15) is housed are equipped, and are communicated with circular groove.