CN1532419A - Blade protector of closed compressor - Google Patents
Blade protector of closed compressor Download PDFInfo
- Publication number
- CN1532419A CN1532419A CNA031210163A CN03121016A CN1532419A CN 1532419 A CN1532419 A CN 1532419A CN A031210163 A CNA031210163 A CN A031210163A CN 03121016 A CN03121016 A CN 03121016A CN 1532419 A CN1532419 A CN 1532419A
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- blade
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- space
- running shaft
- inner space
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Abstract
The blade protector of closed compressor includes cylinder, which has space with upper and lower openings and is installed inside the casing; rotation shaft penetrating the inside space of the cylinder; upper and lower bearings, which cover the upper and lower openings in the cylinder and support the rotation shaft axially and radially; partition board formed on one side of the rotation shaft to separate the inside space of the cylinder into two or more compressing spaces and to shift fluid; and blades, which can move up and down and are connected to the upper and lower bearings to block and compress fluid in the compressing spaces and exhaust the fluid to inside the casing. In the upmost end of the blade moving orbit, some part is set to prevent blades from deviating from the orbit and thus produced damage.
Description
Technical field
The present invention relates to hermetic type compressor, relate in particular to its blade protection device.
Background technique
In general compressor is the machine of compressed fluid, such compressor by the seal container that possesses certain inside space, be installed in the drive mechanism portion that can produce driving force in this seal container, the compression structure that under the effect of the driving force of this drive mechanism portion gas compressed constitutes.
It is several that such compressor generally is divided into rotary compressor (ROTARY COMPRESSOR), hermetic type compressor (RECIPROCATING COMPRESSOR), vortex-type compressor (SCROLL COMPRESSOR) etc. according to the form of the compression structure that gas is compressed.
Fig. 1 to shown in Figure 3 be an a kind of example in the aforesaid compressor, as shown in the figure, in compression structure part by existing compressor, also possessing the suction passage (f1) that is communicated with respectively with inner space (V) and discharge route (f2) thereby can make when having formed inner space (V) has running shaft (20) to run through its center in its inner space (V) that is fixedly connected on the cylinder in-block (D) on the seal container (10) and inserts, and running shaft (20) is connected in the drive mechanism portion (M) that can produce necessary driving force.
Cylinder in-block (D) comprises that there is the hole of the perforation of drum inside, thereby can be fixed on fixedly cylinder (30) on the seal container (10), cover and form upper bearing (40) and lower bearing (50) inner space (V) and supporting rotating shaft (20) with cylinder (30) on cylinder (30) top and bottom respectively, the suction passage that runs through (f1) that is radial formation from the inner space (V) of cylinder (30) to outer surface is arranged on cylinder (30).
Upper bearing (40) and lower bearing (50) comprise the outwards outstanding supporting portion (42,52) with certain altitude and external diameter that has certain thickness and the plat part of area (41,51), forms, the shaft insertion hole (43,53) that runs through (42,52) center of plat part (41,51) and supporting portion on the one side of this plat part (41,51), the plat part (41) of upper bearing during connection (40) covers the surface of contact of cylinder (30), and running shaft (20) is inserted in the shaft insertion hole (43); Its platen surface (42) covers another face of cylinder (30) when similarly connecting lower bearing (50), and running shaft (20) inserts in the patchhole (53).
Running shaft (20) by have certain external diameter and length, can insert in the shaft insertion hole (43,53) of upper bearing (40) and lower bearing (50) axial region (21) and from axial region (21) prolong come out the inner space (V) of cylinder in-block (D) can be divided into the 1st space (V1) and the 2nd space (V2) cut apart plate (22) formation.
The plate (22) of cutting apart of running shaft (20) has certain thickness, rounded when the plane is seen, when seeing from the side it by the top that has possessed convex surface protrude curved face part (r1), possessed concave surface undercut curved face part (r2), will protrude curved face part (r1) and the curved face part (r2) that caves in couples together is connected curved face part (r3) formation.Promptly cut apart plate (22) and be sine-shaped waveform curve form, its projected curved surface portion (r1) and depression curved face part (r2) form can having on 180 ° the position of phase difference respectively.
In addition, in order can always to contact on the two sides of cutting apart plate (22) and by elastic support and therefrom can be the 1st space (V1) and the 2nd space (V2) be converted into respectively in the blade (70) that sucks space (V1a, V2a) and compression volume (V1b, V2b), also move abreast with the length direction of running shaft (20) the simultaneously upper bearing by running through insertion cylinder in-block (D) respectively and the lower bearing (50) and be connected with it along with the rotation of cutting apart plate (22).
Above-mentioned blade (70) is that the elastic support member (100) that is fixed on upper bearing (40) and the lower bearing (50) is supporting, to make them from horizontal plane cylinder in-block (D) time, be in same phase place during connection, promptly be positioned on the above-mentioned upper-lower position of cutting apart plate (22).Blade (70) is inserted in respectively in the bearing and the vane slit (44,54) on the lower bearing (50) that is formed at cylinder in-block (D).
Be provided with in addition by respectively each discharge route (f2) that go up to form at cylinder in-block (D) being carried out switch will compression volume (V1b, V2b) at the 1st space (V1) and the 2nd space (V2) in the construction of switch (80) of compressed gas discharge, and on seal container (10), also be connected with the suction pipe (90) that is connected with suction passage (f1).
The course of action of compressor with aforesaid structure is as described below.
If the connection power supply, drive mechanism portion (M) starts and driving force is sent to running shaft (20) and makes the running shaft rotation, cuts apart plate (22) and will rotate in the inner space of cylinder in-block (D) (V) what a side of running shaft (20) formed so.
As shown in Figure 3 and Figure 4, if cutting apart the end of the projected curved surface portion (r1) of plate (22) is on the position that lays respectively at the blade (70) in the 1st space (V1) and the 2nd space (V2), the state that the suction process that just makes the compressed gas purging process that concentrates in the compression volume (V1b) finish, suck simultaneously space (V1a) so in the 1st space (V1) also finishes then can be in the 2nd space (V2) and carry out state that gas is sucked space (V2a), also has gas to discharge from compression volume (V2b) simultaneously.
Next as shown in Figure 5, if cut apart plate (22) rotation, thereby the end that makes the depression curved face part (r2) of cutting apart plate (22) lays respectively on the position of the blade (70) in the 1st space (V1) and the 2nd space (V2), will be in the 1st space (V1) so and carry out gas is sucked space (V1a), the status of processes that also has simultaneously gas to discharge from compression volume (V1b), the compressed gas purging process that then can be in the 2nd space (V2) in the compression volume (V2b) finishes, suck the state that the suction process in space (V2a) also finishes simultaneously.
In the inner space of aforesaid cylinder in-block (D) (V), cutting apart plate (22) whenever revolves and will suck gas in turn around the 1st space (V1) and the 2nd space (V2) respectively and with the action of discharging again after the gas compression, such action can be carried out repeatedly.
But in having the closed rotary compressor of aforesaid existing structure, when being formed under the driving of drive mechanism portion (M) and a side of the running shaft (20) of rotation, cut apart plate (22) when rotation to what the inner space of cylinder in-block (D) was cut apart, in order to touch on two faces cutting apart plate (22) and by elastic support, and can make thus gas be inhaled into compressed blade (70) in the process that moves up and down according to motion track, the blade (70) that is being supported by elastic support structure (100) might come off from elastic support structure (100) under the effect of inertial force, and be in the state of upwarping, at this moment blade (70) can bump against in drive mechanism portion (M) and go up the coil that forms and coil insulation is destroyed, or bump with other parts and cause damage, Here it is problem place.
Summary of the invention
In order to overcome the above-mentioned shortcoming that prior art exists; the invention provides a kind of blade protection device of hermetic type compressor; to prevent becoming the blade of Elastic Contact when moving track moves up and down, coming off, avoid itself and other parts to clash and cause damage with two faces cutting apart plate of the inside of cutting apart cylinder in-block.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of blade protection device of hermetic type compressor comprises for can pressurized gas and possessed the cylinder that there is the space of opening both sides up and down and is fixedly mounted on the inside of casing, run through the inner space of described cylinder and the running shaft that can under the driving force effect of drive mechanism portion, rotate, make cylinder interior form upper bearing and lower bearing an inner space and that running shaft axially can be supported with radial direction on the upper and lower opening of described cylinder thereby cover, be formed at described running shaft a side the inner space of cylinder can be divided at least plural compression volume and can make the plate of cutting apart that fluid in each compression volume moves, have at least one be connected on upper bearing and the lower bearing can move up and down by elastic support and can be under being placed in the described state of cutting apart on the plate while sliding the fluid in each compression volume blocking-up and being discharged to the blade of the inside of casing after being compressed again; It is characterized in that, thereby in order to prevent that described blade breaks away from moving track and clashes with other parts under the effect of inertial force, the parts of avoiding a conflict at a distance of certain intervals are installed in the top of the moving track of described blade.
The blade protection device of described hermetic type compressor; wherein said avoid a conflict parts by at least one be fixed on described upper bearing or the lower bearing the connecting part and with described connecting part all-in-one-piece and perpendicular with the blade movement direction, can prevent the stop part that described blade breaks away from from its moving track.
The effect of invention
Blade protection device for aforesaid hermetic type compressor of the present invention; when the plate of cutting apart that is used for to the inside of cylinder in-block is cut apart rotates; thereby contact is moved up and down along moving track at each blade of cutting apart on two faces of plate; realize the suction of gas thus; when the compression and the process of discharging; the elastic support member (100) of blade comes off or the inertial force of the blade that is moving up and down is bigger than the elastic force of elastic support member if supporting; and make each leaf abscission moving track; the blade that spins off so can be subjected to being connected by bolt the stopping of stop part of the parts of avoiding a conflict on upper bearing and the lower bearing; thereby can prevent that the state of insulation that blade will be wrapped in the coil of above-mentioned drive mechanism portion from destroying; or clash or cause damage with other parts because of conflicting; thereby can improve the reliability of compressor, the present invention that Here it is the effect that can obtain.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the longitdinal cross-section diagram of the compression structure part of common compressor
Fig. 2 is the planimetric map of the compression structure part of compressor shown in Figure 1
Fig. 3 is the vertical cutaway side views of a part of the compression structure part of compressor shown in Figure 1
Fig. 4 and Fig. 5 are the planimetric map of course of action of the compression structure part of compressor shown in Figure 1
Fig. 6 promptly is equipped with the longitdinal cross-section diagram of internal structure of the closed rotary compressor of blade protection device for an example of the present invention
Fig. 7 is the vertical cutting section figure of part of closed rotary compressor shown in Figure 6
The number in the figure explanation:
20: running shaft 40: upper bearing
50: bearing of following step 100: elastic support member
110: the parts 111 of avoiding a conflict: connecting part
112: stop part
Embodiment
An example to the blade protection device of hermetic type compressor of the present invention gives more detailed explanation with reference to the accompanying drawings, adopts prosign to be illustrated for the part identical with existing structure.
Shown in Fig. 6,7; promptly be equipped with in the closed rotary compressor of blade protection device in an example of the present invention; thereby also possess the suction passage (f1) that is communicated with respectively with inner space (V) and discharge route (f2) simultaneously can make and have running shaft (20) to run through its center in its inner space (V) that is fixedly connected on the cylinder in-block (D) on the above-mentioned seal container (10) and insert having formed inner space (V), above-mentioned running shaft (20) is connected in the drive mechanism portion (M) that can produce necessary driving force.
Cylinder in-block (D) comprises that there is the hole of the perforation of drum inside, thereby can make it be fixed on fixedly cylinder (30) on the above-mentioned seal container (10), cover and form inner space (V) with cylinder (30) on the top and bottom of above-mentioned cylinder (30) respectively, and supporting the upper bearing (40) and the lower bearing (50) of running shaft (20), on cylinder (30), have from the inner space (V) of cylinder (30) to outer surface be radial and form run through suction passage (f1).
Upper bearing (40) and lower bearing (50) comprise the plat part (41 with certain thickness and area, 51), at plat part (41,51) the outwards outstanding supporting portion (42 that one side forms respectively with certain height and external diameter, 52), run through plat part (41,51) and the supporting portion (42,52) center and the shaft insertion hole (43 that forms, 53), to make the plat part (41) of upper bearing (40) cover the surface of contact of cylinder (30) during connection, running shaft (20) is inserted in the shaft insertion hole (43), to make its another face that covers cylinder (30) when similarly connecting lower bearing (50), running shaft (20) is inserted in the shaft insertion hole (53).
Running shaft (20) by have certain external diameter and length, can insert in the shaft insertion hole (43,53) of upper bearing (40) and lower bearing (50) axial region (21) and from above-mentioned axial region (21) prolong come out the inner space (V) of above-mentioned cylinder in-block (D) can be divided into the 1st space (V1) and the 2nd space (V2) cut apart plate (22) formation.
The plate (22) of cutting apart of running shaft (20) has certain thickness, rounded when the plane is seen, it is protruded curved face part (r1), has possessed the undercut curved face part (r2) of concave surface, is connected curved face part (r3) formation with what above-mentioned protrusion curved face part (r1) and depression curved face part (r2) coupled together by the top that has possessed convex surface when seeing from the side.Be that the above-mentioned plate (22) of cutting apart is sine-shaped waveform curved surface, its projected curved surface portion (r1) and depression curved face part (r2) form having on 180 ° the position of phase difference respectively.
In addition, in order can always to contact on the above-mentioned two sides of cutting apart plate (22) and by elastic support and therefrom can be above-mentioned the 1st space (V1) and the 2nd space (V2) be converted into respectively and suck in the upper bearing of blade (70) space (V1a, V2a) and compression volume (V1b, V2b) and that move abreast with the length direction of running shaft (20) by running through insertion cylinder in-block (D) respectively and the lower bearing (50) and be connected with it along with the rotation of cutting apart plate (22).
Above-mentioned blade (70) is that the elastic support member (100) that is fixed on upper bearing (40) and the lower bearing (50) is supporting, to make them from horizontal plane cylinder in-block (D) time, be in same phase place during connection, promptly be positioned on the above-mentioned upper-lower position of cutting apart plate (22).Blade (70) is inserted in respectively in the upper bearing and the vane slit (44,54) on the lower bearing (40) (50) that is formed at cylinder in-block (D).Clash with other parts in order to prevent above-mentioned blade (70) under the effect of inertial force, to break away from moving track, the top at the moving track of above-mentioned blade (70) is installed with the parts of avoiding a conflict (120) at a distance of certain intervals ground, and the above-mentioned parts of avoiding a conflict (120) are connected the connecting part (121) on upper bearing (40) or the lower bearing (50) by at least one and are to perpendicular direction prolongation for connecting part (121), just form to the direction vertical curve of blade (70) from the connecting part, can prevent that the stop part (122) that blade (70) breaks away from from its moving track from constituting.
Also have in addition by the construction of switch (80) of compressed gas discharge to going up at above-mentioned cylinder in-block (D) that each discharge route (f2) that forms carries out switch and in will compression volume (V1b, V2b) respectively, and on above-mentioned seal container (10), also be connected with the suction pipe (90) that is connected with above-mentioned suction passage (f1) at the 1st space (V1) and the 2nd space (V2).
Course of action with hermetic type compressor of structure as mentioned above is identical with existing compressor, make contact cut apart blade (70) on the both sides face of plate (22) respectively when moving track moves up and down when cutting apart plate (22) rotation, if inertial force moment greater than the elastic force of above-mentioned elastic support member (100) or elastic support member (100) has come off and make each blade (70) break away from moving track, the blade that spins off so (70) can be subjected to being connected by bolt the stopping of stop part (122) of the parts of avoiding a conflict (120) on upper bearing (40) and the lower bearing (50), thereby can prevent that them from clashing and causing because of conflicting damage with other parts.
The feature that the blade protection device of aforesaid hermetic type compressor of the present invention is possessed is: when being used for of forming in a side of running shaft cut apart plate (22) rotation to what the inside of cylinder in-block was cut apart; thereby contact is moved up and down along moving track at each blade (70) of cutting apart on two faces of plate (22); realize the suction of gas thus; when the compression and the process of discharging; the elastic support member (100) of blade (70) comes off or the inertial force of the blade that is moving up and down (70) is bigger than the elastic force of elastic support member (100) if supporting; thereby make each blade (70) break away from moving track; the blade that spins off so (70) can be subjected to being connected by bolt the stopping of stop part (122) of the parts of avoiding a conflict (120) on upper bearing (40) and the lower bearing (50), thereby can prevent that blade will be wrapped in the insulation breakdown of the coil in the drive mechanism portion (M); or clash or cause damage with other parts because of conflicting.
The effect of invention
For the blade protection device of aforesaid hermetic type compressor of the present invention, right when being used for Thereby the fragmenting plate that the inside of cylinder in-block is cut apart rotation makes contact on two faces of fragmenting plate Each blade move up and down, realize thus suction, compression and the discharge of gas along moving track During process, come off or the leaf that is moving up and down if supporting the elastic support member (100) of blade The inertia force of sheet is bigger than the elastic force of elastic support member, and makes each leaf abscission moving track, takes off so Can be subjected to being bolted the parts of avoiding a conflict on upper bearing and lower bearing from the blade that comes out The stopping of stop part, thereby can prevent that blade will be wrapped in the insulation of the coil of above-mentioned drive mechanism section State destroys or clashes with other parts or cause because conflicting damage, thereby can improve pressure The reliability of contracting machine, the effect that the present invention that Here it is can obtain.
Claims (2)
1, a kind of blade protection device of hermetic type compressor, comprise for can pressurized gas and possessed the cylinder that there is the space of opening both sides up and down and is fixedly mounted on the inside of casing, run through the inner space of described cylinder and the running shaft that can under the driving force effect of drive mechanism portion, rotate, make cylinder interior form upper bearing and lower bearing an inner space and that running shaft axially can be supported with radial direction on the upper and lower opening of described cylinder thereby cover, be formed at described running shaft a side the inner space of cylinder can be divided at least plural compression volume and can make the plate of cutting apart that fluid in each compression volume moves, have at least one to be connected on upper bearing and the lower bearing, while and of can moving up and down by elastic support and under being placed in the described state of cutting apart on the plate, can slide the blocking-up of the fluid in each compression volume and be discharged to the blade of the inside of casing after being compressed again; It is characterized in that,
In order to prevent that thereby described blade breaks away from moving track and clashes with other parts under the effect of inertial force, the parts of avoiding a conflict at a distance of certain intervals are installed in the top of the moving track of described blade.
2, the blade protection device of hermetic type compressor according to claim 1, it is characterized in that described avoid a conflict parts by at least one be fixed on described upper bearing or the lower bearing the connecting part and with described connecting part all-in-one-piece and with the blade movement direction perpendicular can prevent the stop part that described blade breaks away from from its moving track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031210163A CN1532419A (en) | 2003-03-21 | 2003-03-21 | Blade protector of closed compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031210163A CN1532419A (en) | 2003-03-21 | 2003-03-21 | Blade protector of closed compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1532419A true CN1532419A (en) | 2004-09-29 |
Family
ID=34285538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031210163A Pending CN1532419A (en) | 2003-03-21 | 2003-03-21 | Blade protector of closed compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1532419A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424356C (en) * | 2004-06-21 | 2008-10-08 | 乐金电子(天津)电器有限公司 | Vane supporting structure of compressor |
| CN110318999A (en) * | 2018-03-30 | 2019-10-11 | 株式会社丰田自动织机 | Compressor |
-
2003
- 2003-03-21 CN CNA031210163A patent/CN1532419A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424356C (en) * | 2004-06-21 | 2008-10-08 | 乐金电子(天津)电器有限公司 | Vane supporting structure of compressor |
| CN110318999A (en) * | 2018-03-30 | 2019-10-11 | 株式会社丰田自动织机 | Compressor |
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