CN1030733C

CN1030733C - Rotary pump

Info

Publication number: CN1030733C
Application number: CN 91101156
Authority: CN
Inventors: 米利察·奥托·迈克尔; 特罗伊古特·安德烈亚斯
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-01-23
Filing date: 1991-01-23
Publication date: 1996-01-17
Anticipated expiration: 2006-01-23
Also published as: CN1063531A

Abstract

The present invention relates to a rotary pump used for transporting liquid media or gas media in a driving device and a machine set, which has a standard diameter proportion, a width proportion and a match proportion matched with a rolling bearing and is installed nearby an independent bearing to cause the bearing to be positioned and transfer the side force of the bearing. The arrangement of the pump and the shapes of a pump casing and a rotor are suitable for different requirements.

Description

Rotary pump

The present invention relates to a kind of delivering liquid of transmission device or unit or rotary pump of gaseous medium of being used for, it have the independent housing of a band fluid access way and one by one or more parts forms be contained in spool on rotatable parts.

People have known to have this purposes and the different static pressure displacement pump of structure, for example, gear pump, peristaltic pump, plunger pump or the like, they can produce high pressure and pump circulation.

Be used for unit pump lubricated or cooling and do not need the high-pressure delivery medium, therefore can adopt the fluid dynamic rotary pump that works by centrifugal force.

The shortcoming of this pump of known structure is, they usually just design for special purpose, perhaps need expensive unit connection set or the drive unit that separates, and inside and outside transmission device or unit, correspondingly need bigger additional structure space.

The function that has a pump by the existing structure member that makes transmission device or unit obtains a kind of pump of compact structure, and such structure type is known.For example, do the supporting (DE3022419) of pump rotor drive end with the axle head of a transmission unit, perhaps with the housing of unit simultaneously as the bearing support (DE-3417307) of pump case and pump and unit.

Yet this compact structure form does not satisfy general usage requirement, sometimes needs relevant unit parts are done very special structural adjustment.

A kind of known special compact structure form is that a pump and a rolling bearing are combined into an element of construction (G8126303).The outer shroud of bearing constitutes pump case, and ring then constitutes the drive end supporting of pump rotor in it.Though this structure expense is few and suitable, also make pump have the commentaries on classics of independent necessity to pass bearing, brought the high shortcoming of the independent manufacture cost of rolling bearing simultaneously.In addition, in order to satisfy a large amount of specific demands, the structure of the bearing that combines with pump and grade are diversified by this way, and expense also is very expensive.

The objective of the invention is to obtain a kind of delivering liquid of transmission device or unit or pump of gaseous medium of being used for, it is simple and compact for structure, required additional space minimum, expense is low and suitable, and can adapt to different requirements and structure being installed in transmission device, as the inside of unit or be attached on the unit.

The present invention originates in such understanding, and the pump that promptly is suitable for finishing above-mentioned task must be designed to be able to have big as far as possible space or suitable size rather than existing pump; It utilizes existing transmission device to make and may or bear further function as required, so that the additional structure parts on minimizing transmission device or the machine unit shell or the total amount of additional process process.

Under the situation of the necessary externally size constancy of this pump,, further adapt to various mission requirements by the internal structure design.

The technological scheme that realizes above-mentioned purpose is as follows:

A kind of have one to be positioned at an independent housing nearby that is independent of the bearing of this pump according to rotary pump of the present invention, and the rotor of this pump is driven by supporting axle.This rotary pump has diameter proportion, width ratio and the cooperation ratio of standard.The housing of this rotary pump be unified sleeve shape parts or be contained in its away from a side of bearing to form the sleeve shape parts of lid shape parts, these parts have the function with or without the supporting lid of the transmission device of pipe spreader (Wellendurchf ü hrung) or unit.

This novel configuration and the advantage of structure are: pump performance will be complementary with the size and the structure of the rolling bearing of the performance of decision transmission device or unit and requirement, thereby can be according to pump performance by Standard Selection and use; Can press the use of the standard piece of bearing grade classification with reference to other.

The further advantage of rotary pump of the present invention is that it has as supporting that bearing in its vicinity is set and/or the function that makes it to locate, and for example, a supporting sleeve or the pump case that the play supporting role lid with corresponding shape and function is installed.At this moment, medium can be promoted by the bearing of side or be stopped by the Sealing of this bearing.

By the different internal structures and the corresponding rotor of assembling of pump case, can form the fluid dynamic or fluidstatic characteristic of pump in simple mode.

Another advantage of this rotary pump is, it can not only make new and existing transmission device or unit is reduced consume and reduce unnecessary volume.In addition, this pump and be contained in its bearing nearby and can change independently of one another so just can be realized the freedom of multiple pump characteristics and multiple bearing characteristics and cheap and good-quality combination in simple mode.Because pump structure is suitable, the maintenance when also having simplified wearing and tearing and the mounting or dismounting of pump or bearing.

According to the present invention, the exterior contour diameter of pump and a rolling bearing that is provided with like that are complementary.This coupling can refer to or allow an inappreciable deviation that this deviation can remedy with the seal ring of simple supporting sleeve, pad or pump measure-alike.The advantage of this structure is that pump needn't not cover selected grade and can or not make at expansion installing space within reason corresponding to each bearing grade under the complicated condition of device.

About the medium access way in the pump or in the additional wall of the housing of transmission device and unit, accompanying drawing provides some kinds simply to advise.

According to the present invention, be equipped with a corresponding unit lid away from bearing and the side that has a lid shape part on the pump case, therefore, can make the access way of medium in this suction side of covering the shape parts, and needn't change the diameter of the common lid that equaled bearing diameter originally.

More than, a pump as hydraulic brake or hydraulic coupling or motor is described, might use rotary pump of the present invention and special compact structure layout in principle.

Other advantages of pump of the present invention are illustrated with reference to the embodiment shown in Fig. 1 to 5.Wherein:

Fig. 1 is the sectional view of rotary pump of the present invention;

Fig. 2 is by sectional view of the present invention, that its pump case constitutes the pump of sleeve shape parts;

Fig. 3 is the sectional view of two adjacent adjacent pumps of expression;

Fig. 4 is the sectional view corresponding to the pump of Fig. 1 that two of expressions have same nature; And

Fig. 5 represents to have the pump of compact structure.

Fig. 1 expresses the sectional view of pump of the present invention (1), and what represent among the figure is a fluid dynamic centrifugal pump, and this pump is other as the bearing (2) that sleeve shape parts are installed in the live axle (3) in the driver assembly housing (4).It has an independently housing (5), but a rotor (6) and a seal washer (7) that constitutes the centrifugal pump impeller of play.This pump bears outer race (8) to the lateral force of seal ring (7) and supporting the pump case (5) relative with another supporting ring (10).It sucks medium by the following inlet opening (11) that is positioned in the unit casing (4), and makes MEDIA FLOW to rotor (6) by the passage (12) that radially is arranged in the pump case (5).The centrifugal force pulls medium passes through the opening (13) of circular groove (14), and enters the outlet passage (15) of casing (4) therefrom.Pump (1) is identical with the inside and outside footpath of bearing (2).

Fig. 2 is the sectional view of a kind of pump of the present invention of expression, and its pump case constitutes sleeve shape parts (5.1), has one to make the parts (5.2) that cover shape in its side away from bearing (2), and these parts are born the effect of the transmission device supporting lid of tape spool sleeve pipe.

Rotor (6) is made the impeller-type rotor of play, and it is installed in the chassis hole (19) of an off-centre.Drilling access way hole (20) in the lid shape parts (5.2) of pump case.

Typical example is that the part with the bearing diameter coupling of pump case (5.1) is packed in the hole of casing (4), and its diameter is a bit larger tham bearing outside diameter.The seal washer (7) of pump (1) side remedied and the bearing (2) that play supporting role between small diameter poor.

Fig. 3 is the sectional view of two adjacent adjacent pumps (1.1 and 1.2) of expression.A pump by the lining is arranged on bearing (2) side, and its housing (5) constitutes same sleeve shape parts.The housing of second pump (1,2) constituted with Fig. 2 in corresponding sleeve shape part (5.1), in a side that deviates from bearing (2) lid shape parts (5 are housed, 2) rotor of this two pump is identical, and their channel design can be shoved two pump pumped medium streams continuously.The pump of this series connection has improved pumping pressure and pump output.The internal structure of these two pumps needn't be identical.

Fig. 4 represents two sectional views with pump corresponding to Fig. 1 (1.1 and 1.2) of same nature, these two pumps are arranged side by side, by a total passage suction medium, produce the parallel dispatch stream that separates then, continue to carry by drain passage (15.1 and 15.2)).Be that with Fig. 3 difference bearing inner ring (9) is clamped fixing by a packing ring (16), two rotors (6) and a shaft end nut (17) here.

For making Bearing Installation firm, further make outer race (8) near two pump cases (5), make seal ring (7) near a common bearing cap (18).The internal diameter of these two pumps preferably is slightly smaller than bearing bore diameter, and it is poor to remedy this diameter with packing ring (16).

Fig. 5 is the sectional view of the compact structure form of expression pump of the present invention (1).Its housing constitutes sleeve shape part (5.1), in a side that deviates from bearing (2) lid shape parts (5.2) is housed, and plays the effect of the transmission device lid of the supporting that does not have pipe spreader.Pump rotor (6) constitutes impeller wheel of centrifugal machine, and is driven by drive pin (21), and this drive pin (21) cooperates with the end of supporting axle (3).Such pump, just very compact as that use, that have a support lantern ring in normal way transmission device lid, there is not unnecessary space.

Claims

1. be used for the delivering liquid of transmission device or unit or the rotary pump of gaseous medium, there is one to be positioned near an independent pump case that is independent of the bearing of this pump, the rotor of this pump is driven by the axle that this bearing is housed, it is characterized in that, this rotary pump has the diameter ratio of the standard that is complementary with mobile bearing, width ratio and cooperation ratio, and the housing of this rotary pump (5) is unified sleeve shape parts (5.1) or is contained in the parts (5.2) that cover shape away from being of bearing (2) one sides, and these parts play one with or without the transmission device of pipe spreader (Wellendurchf ü hrung) or the supporting lid of unit.

2. by the described rotary pump of claim 1, it is characterized in that, it has as supporting that bearing in its vicinity is set and/or the function that makes it to locate, and transmits the lateral force of outer race (8) and/or pass through the lateral force that pump rotor (6) transmits bearing inner ring (9) by pump case (5).

3. by the described rotary pump of claim 1, it is characterized in that it is arranged side by side by identical or different several parts and forms, and produce dispatch stream parallel or that continue in front and back.

4. by the described rotary pump of claim 1, it is characterized in that fed sheet of a media promotes by being arranged on bearing nearby.

5. according to the described rotary pump of claim 1, it is characterized in that seal ring (7) block media flows to the far-end of bearing (2).

6. according to the described rotary pump of claim 1, it is characterized in that pump case (5) and rotor (6) constitute corresponding fluid driven pump, promptly have wing pump, side canal pump or the centrifugal pump of the power shape blade of centering.

7. according to the described rotary pump of claim 1, it is characterized in that pump case (5) rotor (6) constitutes corresponding hydrostatic pump, i.e. vane pump, roller pump or internal gear pump.