CN208348060U - A kind of rotor compression pump - Google Patents

Abstract

The utility model discloses a kind of rotor compression pump, including shell holder, outer rotor and internal rotor, the two side ends that the shell holder is located at outer rotor are provided with the rotor supports for being used to support outer rotor, and the outer rotor and rotor supports rotation connection；Eccentric setting has internal rotor inside the outer rotor, and the outer rotor inner circumferential forms the internal tooth being made of the arcwall face of multiple protrusions, and the internal rotor periphery forms the external tooth being made of multiple recessed arcwall faces；Each adjacent two tooth top of the external tooth and the surface of internal tooth form multiple relatively independent cavities, so that the air-breathing of rotor compression pump, exhaust are realized in the volume variation by above-mentioned each cavity in the engagement of internal tooth and external tooth, separation process；The rotor compression pump is additionally provided with air inlet for sucking extraneous gas and for exporting by the air guide port of compressed gas, and the air inlet and air guide port can be connected to cavity.To have the effect of improving packaging efficiency.

Description

A kind of rotor compression pump

Technical field

The utility model relates to pneumatic, hydraulic transmission technology field, more specifically to a kind of rotor compression pump.

Background technique

Existing compression pump is roughly divided into diaphragm pump, piston pump, screw pump and gear pump etc., the cycloid gear in gear pump Pump engages to form several sealed volumes by inside and outside multiple tooth rotor.Cycloid gear pump is by oil distribution casing (front/rear cover), outer rotor (driven wheel) and eccentric internal rotor (driving wheel) composition being placed in inside outer rotor, when cycloid gear pump work, inner and outer rotors Rotation in the same direction since the revolving speed of inner and outer rotors movement is different, thus forms oil suction area and oil extraction area；It is mainly answered simultaneously With on liquid, will not generally be applied on gas.But with the continuous improvement of product modular degree, by outer rotor It is being placed it in inside oil distribution casing with after internal rotor cooperation, process is tedious when assembling, thus reduces rotor compression pump assembly When efficiency.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of rotor compression pumps, have the effect for improving packaging efficiency Fruit.

In order to solve the above-mentioned technical problem, the utility model provides a kind of rotor compression pump, including shell holder, outer turn Son and internal rotor, the two side ends that the shell holder is located at outer rotor are provided with the rotor supports for being used to support outer rotor, and The outer rotor and rotor supports rotation connection；Eccentric setting has internal rotor, the outer rotor inner circumferential shape inside the outer rotor At the internal tooth being made of the arcwall face of multiple protrusions, and the internal rotor periphery formed be made of multiple recessed arcwall faces it is outer Tooth；Each adjacent two tooth top of the external tooth and the surface of internal tooth form multiple relatively independent cavities, thus by internal tooth and The air-breathing of rotor compression pump, exhaust are realized in the volume variation of above-mentioned each cavity in the engagement of external tooth, separation process；The rotor pressure Contracting pump is additionally provided with air inlet for sucking extraneous gas and for export by the air guide port of compressed gas, the air inlet with lead Port can be connected to cavity.

Further, the air inlet for sucking extraneous gas is offered in the rotor supports, and is pressed for being discharged The air guide port of contracting gas.

Further, the two side ends of the outer rotor are fixedly installed connection end cap, and the connection end cap, which is set in, to be turned Son support is upper and is rotatablely connected with rotor supports；Positioning component is provided between the connection end cap and rotor supports.

Further, the positioning component includes the protruding ring band being arranged in rotor supports, and is provided with connection end cap On for being embedded the annular groove of protruding ring band.

Further, the connection end cap offers several latch recess close to the end face of outer rotor, on the outer rotor Protrusion is provided with the locking projections that can be embedded in inside latch recess.

Further, the outer rotor and internal rotor pass through gear drive and power axis connection.

Further, the part protruded between the adjacent external tooth of the internal rotor is provided with blade, with described for reinforcing Sealing between the tooth top and outer rotor inner toothed surface of internal rotor external tooth.

Further, when offering several air slots, internal rotor and outer rotor synchronous rotary on the internal rotor, air slot It can be connected to air inlet or air guide port.

Further, the air inlet and air guide port are in be arranged with the arc of air slot cooperation.

The utility model has the beneficial effects that

1, pass through outer rotor and the eccentric internal rotor being embedded in outer internal rotor, each adjacent two tooth top and internal tooth of external tooth Surface form multiple relatively independent cavities, when the volume of cavity is changed from small to big, extraneous gas is under the action of pressure difference Into inside cavity, the process of air-breathing is completed；When the volume of cavity from large to small when, the effect of gas inside cavity in pressure difference Lower calm intracavitary portion's discharge, completes the process of exhaust；The volume of cavity is for gear pump and screw pump, unit discharge capacity Volume it is bigger, to improve the working efficiency of rotor compression pump；If this is practical new thus under the requirement of same displacement Rotor compression pump in type, which has, to occupy little space, the lighter advantage of quality；

It 2, only need to be in shell in assemble rotor compression pump by the way that outer rotor, internal rotor and rotor supports are combined into module The position and space of module installation are reserved on body support frame, just only the module combined need to be mounted on desired position, The assembling mode of this sub-module assembling can improve efficiency when rotor compression pump installation；

3, combine outer rotor, internal rotor and rotor supports according to different specifications the module to form different size, thus Installation can be combined with the rotor compression pump of different size, while can when assembling outer rotor, internal rotor and rotor supports With the detection of the assembling and concentration concentrated, thus the rotor compression pump later period assembling during can simplify detection and tune The process of examination is easy to implement the standardization and streamlined of installment work；

4, because the module for combining outer rotor, internal rotor and rotor supports as one is mounted on inside rotor compression pump, It can remove and overhaul with sub-module during the later period overhauls and safeguards, to facilitate the maintenance in later period；

5, cavity is the seal cavity formed by the internal tooth of outer rotor and the external tooth of internal rotor, because the external tooth of internal tooth adds For work for the processing of gear pump and screw pump, the difficulty and required precision when processing are lower, thus reduce rotor pressure Contract the manufacturing cost pumped.

Detailed description of the invention

Fig. 1 is a kind of schematical cross-sectional view of rotor compression pump embodiment of the utility model；

Fig. 2 is the A direction view along Fig. 1；

Fig. 3 is the schematical cross-sectional view splitted along the line B-B of Fig. 1；

Fig. 4 is the schematical cross-sectional view splitted along the line C-C of Fig. 1；

Fig. 5 is the distribution schematic diagram of the utility model；

Fig. 6 is the partial sectional view of the utility model；

Fig. 7 is the enlarged drawing of the part D in Fig. 6.

Wherein, 1, line shaft；11, the first driving gear；12, the second driving gear；13, air inlet；14, air guide port；15, Blade；2, shell holder；3, internal rotor；4, rotor supports；42, protruding ring band；5, connection end cap；51, latch recess；52, ring Slot；6, outer rotor；61, locking projections；7, the first driven gear；8, the second driven gear.

Specific embodiment

The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.

Embodiment

A kind of rotor compression pump, referring to Fig.1, including shell holder 2, outer rotor 6 and internal rotor 3, shell holder 2 are located at outer The both ends of rotor 6 are respectively arranged with rotor supports 4, and two rotor supports 4 are rotatablely connected with outer rotor 6, and two rotor supports 4 are It is fixedly connected with shell holder 2.Internal rotor 3 is eccentrically set on the inside of outer rotor 6, and 6 inner circumferential of outer rotor is formed by multiple protrusions The internal tooth that constitutes of arcwall face, and 3 periphery of internal rotor forms the external tooth that is made of multiple recessed arcwall faces, external tooth per adjacent Two tooth tops are in contact with the surface of internal tooth and form multiple relatively independent cavity R (referring to Fig. 4).Outer rotor in the present embodiment 6 inner circumferentials form the internal tooth that the arcwall face protruded by 5 is constituted, and eccentric setting is in the 3 periphery shape of internal rotor in the outer rotor 6 At the internal tooth being made of 4 recessed arcwall faces, outer rotor 6 also can have more internal tooths in another embodiment, accordingly Internal rotor 3 also can have more external tooths.To pass through the engaging of internal tooth and external tooth, above-mentioned each cavity in separation process Volume variation come realize the impeller pump air-breathing, exhaust.When the volume of cavity R changes from small to big, extraneous gas is in pressure difference Under the action of enter cavity R inside, to realize the process of air-breathing；When the volume of cavity R from large to small when, inside cavity R Gas be discharged inside cavity R under the action of pressure difference, to realize the process of exhaust.

Referring to Fig.1 and Fig. 4, the leakproofness between 6 inner toothed surface of tooth top and outer rotor in order to reinforce 3 external tooth of internal rotor, The protruding parts formed between the recessed arcwall face of each adjacent two of internal rotor 3 are equipped with blade 15.Blade 15 is along interior turn Son 3 it is radially fixed, and the one end of blade 15 far from internal rotor 3 can be bonded with outer rotor 6.Blade 15 can be using elastic structure Part (such as spring) support, radial contraction is carried out convenient for blade 15 in the course of rotation, so that blade 15 and outer turn It is bonded between the internal tooth of son 6.It should be understood that finishing can also be passed through when being not provided with the blade 15 for sealing The gap between the surface of 6 internal tooth of tooth top and outer rotor of 3 external tooth of internal rotor is reduced, while improving revolving speed and making 6 He of outer rotor Clearance seal is formed between internal rotor 3, to reduce the damage of gas between adjacent cavity.When liquid is placed in cavity When, when internal rotor 3 in the course of rotation, during the liquid inside cavity moves in cavity, liquid is in 6 He of outer rotor It can be because the effect of surface tension forms oil film, to reduce liquid between adjacent cavity at the position that internal rotor 3 contacts Loss.

Referring to Figures 1 and 2, the air inlet 13 and air guide port 14 that can be connected to cavity R are offered in rotor supports 4, into Port 13 is used for the inside of external gas sucking cavity R, and air guide port 14 is used to for the gas inside cavity R being discharged.For Extraneous gas is introduced inside cavity R through air inlet 13 by pressure difference, air inlet 13 tends to set on the volume of cavity R by small On the position to become larger, and air guide port 14 tends on position from large to small set on the volume of cavity R in order to the gas in cavity R It is discharged after being compressed through the air guide port 14.Air inlet 13 and air guide port 14 can be provided in either rotor support 4, can also be divided It is not provided in two rotor supports 4, the present embodiment air inlet 13 and air guide port 14 are provided in the same rotor supports 4.

Referring to Fig. 2 and Fig. 4, extraneous gas is introduced inside cavity in order to preferably cooperate through air inlet 13, and will held Gas in chamber is discharged after being compressed through air guide port 14, and several air slot Q are equipped on internal rotor 3.In internal rotor 3 and outer rotor Air slot Q can be communicated with air inlet 13 and air guide port 14 when 6 synchronous rotary, to improve the efficiency of air inlet and exhaust.Together When the air inlet 13 that is provided in rotor supports 4 and air guide port 14 be all provided with the arc for being set to and matching with air slot Q.The present embodiment Set 14 angle of air guide port is basic setup, is more suitable for liquid transmission, can also change air slot Q depending on the application and lead The circumferential angle that port 14 communicates is such as: the circumferential angle that air guide port 14 starts exhaust being set in the position such as Fig. 1, then two phases The compressed gas of nearly cavity can not generate interference mutually, and that takes over is transmitted to air guide port 14.

Referring to Fig.1, Fig. 6 and Fig. 7, because outer rotor 6 is rotated relative to shell holder 2, and rotor supports 4 are relative to shell Bracket 2 is fixed, thus in order to improve the accuracy of position when outer rotor 6 rotates, the both ends of the surface of outer rotor 6 are fixedly installed connection End cap 5.Two connection end caps 5 can be set in two rotor supports 4 and can rotate in rotor supports 4.And two connect End cap 5 respectively with positioning component is provided in two rotor supports 4, positioning component includes the annular groove 52 being provided in connection end cap 5, And the protruding ring band 42 in rotor supports 4 is set.Because outer rotor 6 is rotatably arranged between two rotor supports 4, two connections Both ends of the surface of the end cap 5 respectively with outer rotor 6 are fixed；It is thus embedded behind 52 inside of annular groove when protruding ring band 42 is corresponding, Neng Goushi Existing two connection end caps 5 and outer rotor 6 it is relatively fixed.

Referring to figure 6 and figure 7, consolidate the accuracy of timing position to improve outer rotor 6 and connection end cap 5, connection end cap 5 is leaned on The end face of nearly outer rotor 6 offers the latch recess 51 of several arcs, while setting and locking are protruded in the both ends of outer rotor 6 Groove matches 51 locking projections 61 closed.It can be realized outer rotor 6 in the inside of latch recess 51 by being embedded locking projections 61 And two pre-fixing between connection end cap 5, to facilitate the fixation of outer rotor 6 and connection end cap 5.Locking projections are utilized simultaneously Latching force between 61 and latch recess 51, the accuracy of position when outer rotor 6 and the cooperation of connection end cap 5 can be improved, thus Improve the accuracy of outer rotor 6 and the fixed position of connection end cap 5.

Referring to Fig.1, the both ends that internal rotor 3 inside outer rotor 6 is arranged in biasing integrally formed are provided with internal rotor Axis, inner rotor shaft are plugged in the inside of two rotor supports 4 and are rotatablely connected with rotor supports 4.

Referring to Fig.1, it is connect by gear drive with line shaft 1 between outer rotor 6 and internal rotor 3, is rotated in shell holder 2 It is provided with line shaft 1, line shaft 1 is driven by a motor rotation.Two the first driving gears 11 being fixed to each other are provided on line shaft 1 With the second driving gear 12, pass through fixing piece between the first driving gear 11 and the second driving gear 12 both ends of the surface close to each other Locking.The first driven gear 7 with the cooperation of the first driving gear 11, the end sleeve of connection end cap 5 are arranged on inner rotor shaft Equipped with the second driven gear 8 cooperated with the second driving gear 12.Because of the first driving gear 11 and the first driven gear 7, Transmission ratio between two driving gears 12 and the second driven gear 8 is different, so that the first driven gear 7 and the second driven tooth The velocity of rotation of wheel 8 is different.Because the first driven gear 7 is set on the outer wall of inner rotor shaft, thus 7 He of the first driven gear The revolving speed of internal rotor 3 is identical；Because the second driven gear 8 is set on the outer wall of connection end cap 5, thus the second driven gear 8 It is identical with the revolving speed of outer rotor 6.When spindle rotation, outer rotor 6 and internal rotor 3 respectively with different rotational speeds, thus So that internal rotor 3 and outer rotor 6 are formed by cavity and constantly change, to realize the overall process of air inlet and exhaust.Respectively with One driving gear 11 and the second driving gear 12 drive internal rotor 3 and outer rotor 6 to rotate, so that outer rotor 6 and internal rotor 3 can be with Realize synchronous rotation, thus the application of gas and liquid, and outer rotor 6 and interior turn may be implemented in outer rotor 6 and internal rotor 3 Blind-mate can be used between son 3.Synchronous rotation between outer rotor 6 and internal rotor 3 reduces outer rotor 6 and interior simultaneously Rigid collision between rotor 3 has certain protective effect to outer rotor 6 and internal rotor 3.

Motion process:

When external impetus drives line shaft 1 to rotate, line shaft 1 drives the first driven gear by the first driving gear 11 7 and the rotation of internal rotor 3, the second driving gear 12 drive the second driven gear 8 and outer rotor 6 to rotate, to realize outer rotor 6 Become larger in the volume of cavity R from small with the synchronous rotary between internal rotor 3 so that the volume size of cavity R alternately changes When gas or liquid sucked by air inlet 13 and air slot Q, in the volume of cavity R from by air slot Q and being led when becoming smaller greatly Gas or liquid is discharged in port 14.

Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.

Claims (10)

1. a kind of rotor compression pump, which is characterized in that including shell holder, outer rotor and internal rotor, the shell holder is located at The two side ends of outer rotor are provided with the rotor supports for being used to support outer rotor, and the outer rotor and rotor supports rotation connect It connects；Eccentric setting has internal rotor inside the outer rotor, what the outer rotor inner circumferential formation was made of the arcwall face of multiple protrusions Internal tooth, and the internal rotor periphery forms the external tooth being made of multiple recessed arcwall faces；Each adjacent two tooth of the external tooth Top and the surface of internal tooth form multiple relatively independent cavities, thus by above-mentioned in the engagement of internal tooth and external tooth, separation process The air-breathing of rotor compression pump, exhaust are realized in the volume variation of each cavity；

The rotor compression pump is additionally provided with air inlet for sucking extraneous gas and for exporting by the air guide port of compressed gas, The air inlet and air guide port can be connected to cavity.

2. rotor compression pump as described in claim 1, which is characterized in that offer in the rotor supports for sucking outside The air inlet of gas, and for being discharged by the air guide port of compressed gas.

3. rotor compression pump as described in claim 1, which is characterized in that the two side ends of the outer rotor company of being fixedly installed End cap is connect, the connection end cap is set in rotor supports and is rotatablely connected with rotor supports；The connection end cap and rotor branch Positioning component is provided between support.

4. rotor compression pump as claimed in claim 3, which is characterized in that the positioning component includes being arranged in rotor supports Protruding ring band, and be provided in connection end cap for being embedded the annular groove of protruding ring band.

5. rotor compression pump as claimed in claim 3, which is characterized in that the connection end cap is opened up close to the end face of outer rotor There are several latch recess, the outer rotor protrudes above the locking projections that is provided with and can be embedded in inside latch recess.

6. rotor compression pump as described in claim 1, which is characterized in that the outer rotor and internal rotor pass through gear drive machine Structure and power axis connection.

7. rotor compression pump as described in claim 1, which is characterized in that the part protruded between the adjacent external tooth of the internal rotor It is provided with blade, with the sealing between the tooth top and outer rotor inner toothed surface for reinforcing the internal rotor external tooth.

8. rotor compression pump as described in claim 1, which is characterized in that the tooth top and outer rotor internal tooth of the internal rotor external tooth It is sealed between surface by microgap.

9. rotor compression pump as described in claim 1, which is characterized in that several air slots are offered on the internal rotor, it is interior When rotor and outer rotor synchronous rotary, air slot can be connected to air inlet or air guide port.

10. rotor compression pump as claimed in claim 9, which is characterized in that the air inlet and air guide port are in and air slot The arc of cooperation is arranged.