CN2409356Y

CN2409356Y - Hydraulic motor oil delivering device for hydraulic transmission horizontal helico-centrifuger

Info

Publication number: CN2409356Y
Application number: CN 99205582
Authority: CN
Inventors: 欧自强
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-11
Filing date: 1999-03-11
Publication date: 2000-12-06
Anticipated expiration: 2009-03-11

Abstract

The utility model relates to a hydraulic motor oil transporting device for a hydraulic transmission horizontal screw centrifuge. The utility model is suitable for inputting hydraulic oil from a stationary oil pipe into an oil matching body of a hydraulic motor, which is rotary in high speed. The utility model is designed in order to solve the problem of the connection and the seal between the stationary oil pipe and the oil matching body of a hydraulic motor, which is rotary in high speed, in a hydraulic transmission horizontal screw centrifuge. The utility model is characterized in that one stationary oil transporting shaft having two axial oil transporting holes uses two rolling bearings to support inside a high-speed rotation shell body. Space is formed between a top circle of the stationary oil transporting shaft and the surface of an inner hole of the high-speed rotation shell body, and a set of left seals and a set of right seals are arranged in the space. The seals can bear forward or reverse hydraulic pressure, and the utility model has good sealing performance. The utility model has the advantage of good oil transporting effect.

Description

The oil hydraulic motor oil delivering device that the hydraulic transmission horizontal helico-centrifuger is used

The utility model is the oil hydraulic motor oil delivering device that a kind of hydraulic transmission horizontal helico-centrifuger is used, and belongs to the technical field of solid-liquid separation mechanics, is applicable to hydraulic oil is input in the oil hydraulic motor oil distributing member of high speed rotating from static oil pipe.

China is in the hydraulic transmission horizontal helico-centrifuger of development oneself, and known one big technical barrier is that hydraulic oil is input in the oil hydraulic motor oil distributing member of high speed rotating from static oil pipe.The key that solves this difficult problem is a sealing problem.

The purpose of this utility model is: for hydraulic oil is input in the oil hydraulic motor oil distributing member of high speed rotating from static oil pipe, provide a kind of simple, reliable, novel oil hydraulic motor oil delivering device.

The technical solution of the utility model is: form excessively by scraper ring 17, the right parts such as scraper ring 11, seal 8 and 14, back-up ring 6 and 15, rotating ring 12 and 3, O-ring seals 16 and 7, sealed case 5 of crossing by oil-guiding shaft 1, housing 18, a left side for the utility model.The respective aperture of the d chamber in the respective aperture of the B chamber in the housing 18 and the left side in b chamber and the oil hydraulic motor oil distributing member 20 and the right side in c chamber distinguish aim at one by one after, tighten together with screw, with the rotary drum high speed rotating.Have that two rolling bearings 17 and 10 are supported in the housing 18 about static oil-guiding shaft 1 usefulness in two axial oil transportation holes.Left and right two groups of sealings and left and

right scraper ring

17 and 11 etc. crossed so pack in the space that between the bore area of the housing 18 of the outer round surface of static oil-guiding shaft 1 and high speed rotating, forms.Left side group sealing this space communicate with two axial oil transportation holes in the oil-guiding shaft 1 respectively about two intervals separate, closely seal, do not leak mutually.Right group sealing is contained in the sealed case 5 and with O-ring seals 9 right interval right-hand member is sealed up.Be contained in 1 of housing 18 and oil-guiding shaft about two groups of sealings, respectively by O-ring seals 16 and 7, back-up ring 15 and 6, rotating ring 12 and 3, O-ring seals 13 and 4 and seal 14 and 8 etc. form.And be enclosed within O-ring seals 16 and 7 on the oil-guiding shaft 1 more tightly.And the back-up ring 15 and 6 of both sides, form static seal respectively; Back-up ring 15 and 6 and the end face that mutually slides at work of rotating ring 12 and 3 between, flow pattern end face motive sealing in forming respectively.Two groups of sealings all are made up of parts such as static seal and the motive sealings of interior flow pattern end face respectively promptly.Wherein between the cylindrical of the rotating ring 12 and 3 of both sides, the endoporus of crossing

scraper ring

17 and 11, back-up ring 15 and 6, sealed case 5 etc. and oil-guiding shaft 1, and all gapped between the endoporus of the cylindrical of back-up ring 15 and 6 and seal 14 and 8.O-ring seals 16 and 7 outer round surface and seal 14 do not allow to contact with 8 bore area.About two cross between the outer round surface of the bore area of

scraper rings

17 and 11 and static oil-guiding shaft 1 bigger gap arranged.Interface A, a of the right-hand member in two axial oil transportation holes in the static oil-guiding shaft 1, respectively with Hydraulic Power Transmission System in two static oil pipes securely be connected.

Major advantage of the present utility model is: novel structure, and sealing is reliable, and oil transportation is effective.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1, structure sectional view of the present utility model

The structure amplification view of the left side group sealing of Fig. 2, Fig. 1

Among the figure: 1, oil-guiding shaft; 2, gland; 3, rotating ring; 4, O-ring seals; 5, sealed case; 6, back-up ring; 7, O-ring seals; 8, seal; 9, O-ring seals; 10, right rolling bearing; 11, the right scraper ring of crossing; 12, rotating ring; 13, O-ring seals; 14, seal; 15, back-up ring; 16, O-ring seals; 17, scraper ring is crossed on a left side; 18, housing; 19, the dynamic bearing that rolls left; 20, oil hydraulic motor oil distributing member; 21, hydraulic motor output shaft.

Embodiment:

As shown in drawings, the left side in the housing 18 tightens together with screw with the right side of oil hydraulic motor oil distributing member 20, and the left side respective aperture that makes B chamber in the housing 18 and b chamber communicates with the interior d chamber of oil distributing member 20 and the right side respective aperture in c chamber respectively.The right-hand member A mouth of static oil-guiding shaft 1 securely is being connected with two of hydraulic system static oil pipes respectively with a mouth.B chamber in the oil-guiding shaft 1 and b chamber are crossed scraper ring 11 and a left side by the right side respectively and are crossed scraper ring 17 and housing 18 interior B chamber and b chambeies and communicate, and two rolling bearings 10 and 19 are bearing in the housing 18 about oil-guiding shaft 1 usefulness.In left and right two groups of sealings, O-ring seals 4,13 is contained in seal 8 and 14, rotating ring 3 and 12 respectively, and between sealed case 5 and the housing 18.O-ring seals 9 is contained between sealed case 5 and the housing 18, and O-ring seals 16 is contained between its left and right two back-up rings 15, and O-ring seals 7 is contained in about it between two back-up rings 6.Left side group sealing is being rolled left between dynamic bearing 19 and the right rolling bearing 10, its two ends, left and right sides respectively with about two cross scraper rings 17 and contact with 11.Right group sealing is contained in the sealed case 5, is positioned at the right of right rolling bearing 10.

When wanting hydraulic motor output shaft 21 just changeing, the fluid of hydraulic system is by a static oil pipe input that is connected with the oil-guiding shaft 1 interior axial oil transportation hole right-hand member A mouth of weak point, through the A-B chamber in short axial oil transportation hole, cross the d chamber in B chambeies in scraper ring 11, the housing 18 enter with it high speed rotating together by its left end the oil hydraulic motor oil distributing member 20, drive hydraulic motor output shaft 21 forward rotation.Oil return is by the b chamber of the c chamber in the oil hydraulic motor oil distributing member 20 to housing 18; Through scraper ring 17, long axial oil transportation hole a-b chamber and a mouth and be attached thereto the static oil pipe of another root that connects, from the hydraulic system oil sump tank.Refer now to and see key of the present utility model, sealing problem, at work after hydraulic oil enters right scraper ring 11 excessively, as shown in Figure 2, owing between the endoporus of right scraper ring 11 excessively and rotating ring 12 and the cylindrical of oil-guiding shaft 1 bigger gap is arranged, hydraulic oil just thus the gap enter left side group sealing, to left translation, and the left side of its left side back-up ring 15 is contacted with the right side of left side rotating ring 12.At this moment the back-up ring 15 of O-ring seals 16 and both sides thereof and static oil-guiding shaft 1 formation static seal do not rotate.The hydraulic oil on the right can not be leaked left by this sealing.Rotating ring 12 is high speed rotating, so there is slide relative the left side of the back-up ring 15 in left side and the right side of rotating ring 12, and stream shape end face motive sealing in forming, flow to the fluid on a left side by the gap between the outer round surface of the back-up ring 15 of the bore area of seal 14 and O-ring seals 16 and both sides, because the both ends of the surface of sliding closely contact and centrifugal action mutually, can not leak by flow pattern end face motive sealing in this.Therefore the sealing of left sealing group is fine.In like manner, the sealing effect of the right sealing group that composition is identical with sealing principle also is fabulous.

If hydraulic motor output shaft counter-rotating, then just in time the oil-feed when just changeing is opposite with the oil return circuit for oil-feed and oil return circuit, and the oil pressure direction that left side group seals when only being subjected to the direction of oil pressure and just changeing is opposite, and sealing effect is good equally; The oil return oil pressure is only born in right group sealing, and low fuel pressure seals more reliable.

Have only during work oil-guiding shaft 1, about static seal, the inner ring of two rolling bearings in two groups of sealings, the round nut and the floor clip in dynamic bearing 19 left sides of rolling left do not rotate, other each part all together rotates with housing 18.

Claims

1, the oil hydraulic motor oil delivering device used of a kind of hydraulic transmission horizontal helico-centrifuger is in order in the oil hydraulic motor oil distributing member (20) of hydraulic oil by the static oil pipe input high speed rotating of Hydraulic Power Transmission System.It is characterized in that: the left side of housing (18) is with after the respective aperture of the right side of oil hydraulic motor oil distributing member (20) is aimed at one by one, tighten together with screw, with the rotary drum high speed rotating, static oil-guiding shaft (1) with two axial oil transportation holes is bearing in the housing (18) with rolling bearing (10) and (19), so in the space that between the bore area of the housing (18) of the outer round surface of static oil-guiding shaft (1) and high speed rotating, forms, two groups of sealings and the left and right scraper ring (17) and (11) etc. of crossing about packing into.Left side group sealing this space communicate with two axial oil transportation holes in the oil-guiding shaft (1) respectively about two intervals separate, closely sealing is not leaked mutually, right group sealing is contained in the sealed case (5) and with O-ring seals (9) right-hand member in interval, the right side is sealed up.

2, hydraulic pressure as claimed in claim 1 rotates the oil hydraulic motor oil delivering device that horizontal helico-centrifuger is used, its feature: two groups of sealings are made up of O-ring seals (16) and (7), back-up ring (15) and (6), rotating ring (12) and (3), O-ring seals (13) and (4) and seal (14) and (8) respectively about being.Wherein O-ring seals (16) and (7), back-up ring (15) and (6) form static seal respectively at the outer round surface of oil-guiding shaft (1), flow pattern end face motive sealing in forming respectively between the end face that slides when work mutually in back-up ring (15) and (6) and rotating ring (12) and (3).