CN217271395U

CN217271395U - Eccentric shaft assembly of rotor engine and rotor engine

Info

Publication number: CN217271395U
Application number: CN202221039556.8U
Authority: CN
Inventors: 郑强; 赵荣
Original assignee: Shaanxi Xinyan Hydrogen Energy Technology Co ltd
Current assignee: Shaanxi Xinyan Hydrogen Energy Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-08-23
Anticipated expiration: 2032-04-29

Abstract

The application provides an eccentric shaft assembly of a rotor engine and the rotor engine; wherein, rotor engine's eccentric shaft assembly includes: the shaft sleeve is provided with at least two eccentric shaft holes, and the axis of each eccentric shaft hole deviates from the axis of the shaft sleeve; the two rotating shafts are respectively inserted into the two eccentric shaft holes and are fixedly connected with the shaft sleeve; the shaft sleeve is provided with at least one engine oil hole, and the engine oil hole penetrates to the eccentric shaft hole from the peripheral wall of the shaft sleeve; an engine oil channel is arranged on the rotating shaft, one end of the engine oil channel is communicated with the engine oil hole, and the other end of the engine oil channel penetrates through the peripheral wall of the rotating shaft. According to the eccentric shaft assembly of the rotary engine and the rotary engine, the eccentric shaft of the rotary engine can provide engine oil to cool the rotor of the rotary engine, the cooling effect on the rotor is improved, and the running performance of the rotary engine is effectively guaranteed.

Description

Eccentric shaft assembly of rotor engine and rotor engine

Technical Field

The application belongs to the technical field of engines, and particularly relates to an eccentric shaft assembly of a rotary engine and the rotary engine.

Background

In daily travel, the transportation means mainly comprise short-distance transportation means such as motorcycles, cars, buses and the like; in addition, the long-distance transport means also comprise airplanes, helicopters and the like. Thank the transportation vehicles require an engine (also commonly referred to as an internal combustion engine) to power the vehicle by burning fossil fuels as the driving force. In addition, engines are also required to drive in the aerospace field and many vehicles in both fields. The engine mainly comprises a piston engine, a turbine engine, a rotor engine and the like; wherein, rotor engine's rotor rotates at a high speed in the cylinder body, and the rotor rotates at a high speed on the one hand, and fossil fuel's burning in the combustion chamber on the other hand for the temperature of rotor is higher, needs cool off the rotor.

At present, in the related art, the cooling of the rotor is generally achieved by cooling the cylinder.

However, this has a poor cooling effect on the rotor, and the running performance of the rotary engine is easily affected.

SUMMERY OF THE UTILITY MODEL

The application provides a rotor engine's eccentric shaft assembly and rotor engine, can provide machine oil through rotor engine's eccentric shaft and cool off rotor engine's rotor, improved the cooling effect to the rotor, effectively guaranteed rotor engine's operation performance.

According to an embodiment of a first aspect of the present application, there is provided an eccentric shaft assembly of a rotary engine, comprising:

the shaft sleeve is provided with at least two eccentric shaft holes, and the axis of each eccentric shaft hole deviates from the axis of the shaft sleeve;

the two rotating shafts are respectively inserted into the two eccentric shaft holes and are fixedly connected with the shaft sleeve;

the shaft sleeve is provided with at least one engine oil hole, and the engine oil hole penetrates to the eccentric shaft hole from the peripheral wall of the shaft sleeve; an engine oil channel is arranged on the rotating shaft, one end of the engine oil channel is communicated with the engine oil hole, and the other end of the engine oil channel penetrates through the peripheral wall of the rotating shaft.

In the embodiment of the application, the shaft sleeve is provided with at least two eccentric shaft holes, and the rotating shaft is inserted into the eccentric shaft holes, so that the eccentric shaft of the rotor engine is formed; the eccentric shaft is convenient to process; in addition, at least one engine oil hole is formed in the shaft sleeve; an engine oil channel is arranged on the rotating shaft; therefore, the engine oil can be supplied to the rotor of the rotor engine through the engine oil channel and the engine oil hole to cool the rotor, so that the temperature of the rotor can be effectively reduced; the cooling effect on the rotor is improved, and the running performance of the rotor engine is effectively ensured.

In an optional design mode, the number of the oil holes is two, and the two oil holes are distributed along the axial direction of the shaft sleeve; the periphery wall of axle sleeve is overlapped and is equipped with first bearing, and first bearing is located between two machine oil holes.

Thus, the engine oil can enter from two sides of the bearing, the circulation rate of the engine oil can be improved, and the cooling efficiency of the rotor can be improved.

In an alternative design, the oil passage includes a first passage disposed in an axial direction of the rotating shaft, and an end of the first passage extends to an outer side of the sleeve.

Like this, through the first passageway that the circumference along the pivot set up, can draw the axle sleeve or introduce the axle sleeve with outside machine oil with machine oil to the machine oil of being convenient for flows in the pivot, can improve the flow rate of machine oil, promotes the cooling effect.

In an optional design, the oil passage further includes a plurality of second passages, and the plurality of second passages penetrate through the first passage and the peripheral wall of the rotating shaft in the radial direction of the rotating shaft; at least one second channel in the second channels is positioned in the shaft sleeve, and the second channel positioned in the shaft sleeve is communicated with the engine oil hole.

Like this, can be linked together machine oil hole and first passageway for machine oil can be smooth and easy flow in the pivot, promoted the cooling effect to the rotor, promoted rotary engine moving stability.

In an alternative embodiment, at least two of the second channels of the plurality of second channels are located in the sleeve.

Therefore, the two second channels are respectively communicated with the two engine oil holes, and the engine oil can flow from two sides of the first bearing, so that the condition that the engine oil seeps from a gap of the first bearing is avoided; the flow rate of the engine oil can be effectively improved; thereby enhancing the cooling effect.

In an alternative embodiment, at least one of the second channels is located on the outside of the sleeve.

In an alternative design, at least two of the second channels are located outside the sleeve; at least two second channels positioned on the outer side of the shaft sleeve are arranged along the axial direction of the rotating shaft; and a second bearing is arranged on the rotating shaft and is positioned between the two second channels.

Like this, machine oil can flow from the both sides of second bearing, need not to ooze the flow from the gap of second bearing to can improve the flow rate of machine oil, promote cooling effect.

In an alternative design, the end of the first channel is provided with a blocking piece for closing the opening of the first channel on the end face of the rotating shaft.

Therefore, the flow direction of the engine oil can be accurately guided, and the engine oil is prevented from leaking; in addition, the cooling effect on the rotor is improved, and the running performance of the rotary engine is ensured.

In an optional design mode, at least two positioning holes are further formed in the shaft sleeve, and the at least two positioning holes and the eccentric shaft hole are arranged in a staggered mode.

Like this, through set up two at least locating holes on the axle sleeve, when installation axle sleeve and pivot, can conveniently fix a position axle sleeve and pivot, promoted the installation effectiveness of axle sleeve and pivot, saved installation time.

According to a second aspect of the embodiments of the present application, there is provided a rotary engine including the eccentric shaft assembly of the rotary engine provided in any one of the alternative designs of the first aspect of the embodiments of the present application.

The construction of the present application and other objects and advantages thereof will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of an eccentric shaft assembly of a rotary engine provided in an embodiment of the present application;

FIG. 2 is an exploded view of an eccentric shaft assembly of a rotary engine according to an embodiment of the present disclosure;

FIG. 3 is a front view of an eccentric shaft assembly of a rotary engine provided in an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a partial enlarged view at B in fig. 4.

Description of reference numerals:

10-shaft sleeve; 20-a rotating shaft;

110-eccentric shaft hole; 120-positioning holes; 210-an oil passage;

111-engine oil hole; 211 — a first channel; 212-a second channel; 213-blocking block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present application, it is to be understood that the terms "inner," "outer," "upper," "bottom," "front," "back," and the like, when used in the orientation or positional relationship indicated in FIG. 1, are used solely for the purpose of facilitating a description of the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

In daily travel, the transportation means mainly comprise short-distance transportation means such as motorcycles, cars, buses and the like; in addition, the long-distance transport means also comprise airplanes, helicopters and the like. Thank you vehicles all require an engine (also commonly referred to as an internal combustion engine) to power the vehicle by burning fossil fuels as the driving force. In addition, engines are also required to drive in the aerospace field and many vehicles in both fields. The engine mainly comprises a piston engine, a turbine engine, a rotor engine and the like; wherein, rotor engine's rotor rotates at a high speed in the cylinder body, and the rotor rotates at a high speed on the one hand, and the burning of fossil fuel in the combustion chamber on the other hand for the temperature of rotor is higher, needs cool off the rotor.

At present, in the related art, cooling of the rotor is generally achieved by cooling the cylinder.

Fig. 1 is a schematic structural view of an eccentric shaft assembly of a rotary engine according to an embodiment of the present application, fig. 2 is a schematic exploded structural view of the eccentric shaft assembly of the rotary engine according to the embodiment of the present application, fig. 3 is a front view of the eccentric shaft assembly of the rotary engine according to the embodiment of the present application, fig. 4 is a sectional view taken along a line a-a in fig. 3, and fig. 5 is a partially enlarged view at a point B in fig. 4.

Referring to fig. 1 to 5, an embodiment of the present application provides an eccentric shaft assembly of a rotary engine, including: the shaft sleeve 10 is provided with at least two eccentric shaft holes 110 on the shaft sleeve 10, and the axis of the eccentric shaft holes 110 deviates from the axis of the shaft sleeve 10.

Specifically, in the embodiment of the present application, the shaft sleeve 10 may specifically be a stainless steel shaft sleeve 10, and in a specific arrangement, the shaft sleeve 10 may be configured as a cylindrical structure. Two eccentric shaft holes 110 are formed in the shaft sleeve 10 along the axial direction (for example, the x direction in fig. 1) of the shaft sleeve 10. Wherein the axis of the eccentric shaft hole 110 is not collinear with the axis of the sleeve 10. In other words, the axis of the eccentric shaft hole 110 is parallel to the axis of the shaft sleeve 10, and both extend along the x direction in fig. 1, and the axis of the eccentric shaft hole 110 is offset from the axis of the shaft sleeve 10 by a certain distance; for example, offset by a distance in the radial direction of the sleeve 10 (e.g., the y-direction or z-direction in fig. 1); thereby forming an eccentric shaft hole.

The eccentric shaft assembly of the rotary engine provided by the embodiment of the application further comprises: at least two rotating shafts 20, the two rotating shafts 20 are respectively inserted into the two eccentric shaft holes 110 and fixedly connected with the shaft sleeve 10; the shaft sleeve 10 is provided with at least one engine oil hole 111, and the engine oil hole 111 penetrates from the peripheral wall of the shaft sleeve 10 to the eccentric shaft hole 110; an oil passage 210 is provided on the rotating shaft 20, one end of the oil passage 210 communicates with the oil hole 111, and the other end of the oil passage 210 penetrates the peripheral wall of the rotating shaft 20.

It should be noted that, the fixing of the rotating shaft 20 and the shaft sleeve 10 may specifically mean that the rotating shaft 20 and the shaft sleeve 10 are fixed in the circumferential direction of the rotating shaft 20, that is, the rotating shaft 20 is inserted into the eccentric shaft hole 110 and then is not rotatable in the eccentric shaft hole 110. In a specific arrangement, a key groove may be formed on the rotating shaft 20, and a spline may be formed in the eccentric shaft hole 110 to fix the rotating shaft 20.

Of course, in some possible examples, the rotating shaft 20 may be fixed by welding after the rotating shaft 20 is inserted into the eccentric shaft hole 110.

The oil hole 111 may be formed integrally with the shaft sleeve 10, and in some possible examples, the oil hole 111 may also be formed by performing secondary machining by using a milling cutter after the shaft sleeve 10 is formed.

Accordingly, in the embodiment of the present application, the oil passage 210 may be formed in the same or similar manner as the oil hole 111.

In the embodiment of the present application, at least two eccentric shaft holes 110 are formed on the shaft sleeve 10, and the rotating shaft 20 is inserted into the eccentric shaft holes 110, thereby forming an eccentric shaft of the rotor engine; the eccentric shaft is convenient to process; in addition, at least one oil hole 111 is provided in the sleeve 10; an oil passage 210 is provided on the rotating shaft 20; in this way, the oil can be supplied to the rotor of the rotary engine through the oil passage 210 and the oil hole 111 to cool the rotor, so that the temperature of the rotor can be effectively reduced; the cooling effect on the rotor is improved, and the running performance of the rotor engine is effectively ensured.

Referring to fig. 1, 2 and 4, in an alternative example of the present application, there are two oil holes 111, and the two oil holes 111 are arranged along an axial direction of the sleeve 10 (specifically, may refer to an x direction in fig. 1, 2 or 4); the outer peripheral wall of the shaft sleeve 10 is sleeved with a first bearing, and the first bearing is located between the two engine oil holes 111.

In an alternative design, referring to fig. 4, the oil passage 210 includes a first passage 211, the first passage 211 is disposed along the axial direction of the rotating shaft 20, and an end of the first passage 211 extends to the outside of the sleeve 10.

In particular arrangements, the first channel 211 may be formed by being recessed/gouged inwardly from the end of the shaft 20. For example, referring to fig. 4, the first channel 211 may be formed by drilling/grooving the first channel 211 from the end surface of the rotating shaft 20 in the negative x direction after the rotating shaft 20 is molded.

Like this, through the first passageway 211 that sets up along the circumference of pivot 20, can draw axle sleeve 10 with machine oil or draw axle sleeve 10 with outside machine oil to be convenient for machine oil to flow from pivot 20, can improve the flow rate of machine oil, promote the cooling effect.

It should be noted that, in order to ensure that the oil flows along the first passage 211 in the rotating shaft 20, referring to fig. 4 and 5, in some alternative examples of the embodiment of the present application, the end of the first passage 211 is provided with a blocking block 213, and the blocking block 213 is used for blocking the opening of the first passage 211 on the end surface of the rotating shaft 20.

The material of the blocking block 213 may be the same as that of the rotating shaft 20 or the shaft sleeve 10. In other words, after the first passage 211 is opened by the end surface of the rotating shaft 20, the blocking block 213 may be formed at the opening of the first passage 211 by a secondary casting method, so as to block the end of the first passage 211.

As shown with continued reference to fig. 4 and 5, in some alternative examples of the embodiment of the present application, the oil passage 210 further includes a plurality of second passages 212, the plurality of second passages 212 penetrating the first passage 211 and the peripheral wall of the rotating shaft 20 in the radial direction of the rotating shaft 20; at least one second passage 212 of the plurality of second passages 212 is located in the sleeve 10, and the second passage 212 located in the sleeve 10 communicates with the oil hole 111.

Specifically, in the embodiment of the present application, the second passage 212 may be opened in the same manner or in a similar manner as the engine oil hole 111. Of course, in some alternative examples, the first channel 211 may be opened first, and then the second channel 212 may be opened, so as to avoid the second channel 212 being opened too deeply. Of course, in some possible examples, the second channel 212 may be opened first, and then the first channel 211 may be opened.

Like this, can be linked together machine oil hole 111 and first passageway 211 for machine oil can be smooth and easy flow in pivot 20, has promoted the cooling effect to the rotor, has promoted the stability of rotary engine operation.

With continued reference to fig. 4 and 5, in the present embodiment, at least two second passages 212 of the plurality of second passages 212 are located within the sleeve 10.

Specifically, the distance between the two second passages 212 may be determined according to the distance between the two oil holes 111; alternatively, in some examples, the spacing between the two second channels 212 may also be determined based on the axial length/thickness of the first bearing. In other words, in the present embodiment, the two second passages 212 communicate with the two oil holes 111, respectively. For example, one of the second passages 212 communicates with one of the oil holes 111, and the other second passage 212 communicates with the other oil hole 111.

Therefore, the two second channels 212 are respectively communicated with the two engine oil holes 111, engine oil can flow from two sides of the first bearing, and the condition that the engine oil seeps from a gap of the first bearing is avoided; the flow rate of the engine oil can be effectively improved; thereby enhancing the cooling effect.

Referring to fig. 4 and 5, in some alternative examples, at least one second passage 212 of the plurality of second passages 212 is located outside the sleeve 10.

Specifically, at least one of the second passages 212 may be formed in a side wall of the rotation shaft 20 located outside the shaft housing 10. That is, in the embodiment of the present application, at least a portion of the first passage 211 extends to the outside of the sleeve 10.

In an alternative design, as shown with continued reference to fig. 4 and 5, at least two second channels 212 of the plurality of second channels 212 are located on the outside of the sleeve 10; at least two second passages 212 located outside the shaft sleeve 10 are arranged along the axial direction of the rotating shaft 20; the shaft 20 is provided with a second bearing, which is located between the two second channels 212.

Referring to fig. 1 to 4, in an alternative example of the embodiment of the present application, at least two positioning holes 120 are further formed on the sleeve 10, and the at least two positioning holes 120 are disposed in a staggered manner with respect to the eccentric shaft hole 110.

It should be noted that, in the embodiment of the present application, the two positioning holes 120 are symmetrically arranged with respect to the radial direction of the shaft sleeve 10. In other words, the two positioning holes 120 can be located at both ends of the same diameter of the bushing 10.

Like this, through set up two at least locating holes 120 on axle sleeve 10, when installation axle sleeve 10 and pivot 20, can conveniently fix a position axle sleeve 10 and pivot 20, promoted axle sleeve 10 and pivot 20's installation effectiveness, saved installation time.

It is understood that in some alternative examples of the embodiments of the present application, the two eccentric shaft holes 110 may be symmetrically arranged with respect to the circumferential direction.

In some alternative examples, the embodiment of the present application further provides a rotary engine, including the eccentric shaft assembly of the rotary engine provided in any one of the alternative embodiments of the present application.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An eccentric shaft assembly of a rotary engine, comprising:

the shaft sleeve (10), at least two eccentric shaft holes (110) are arranged on the shaft sleeve (10), and the axes of the eccentric shaft holes (110) deviate from the axis of the shaft sleeve (10);

the two rotating shafts (20) are respectively inserted into the two eccentric shaft holes (110) and are fixedly connected with the shaft sleeve (10);

the shaft sleeve (10) is provided with at least one oil hole (111), and the oil hole (111) penetrates from the peripheral wall of the shaft sleeve (10) to the eccentric shaft hole (110); an engine oil channel (210) is arranged on the rotating shaft (20), one end of the engine oil channel (210) is communicated with the engine oil hole (111), and the other end of the engine oil channel (210) penetrates through the peripheral wall of the rotating shaft (20).

2. The eccentric shaft assembly of the rotary engine according to claim 1, wherein the number of the oil holes (111) is two, and the two oil holes (111) are arranged along the axial direction of the shaft sleeve (10); the cover is equipped with first bearing on the periphery wall of axle sleeve (10), first bearing is located two between oil hole (111).

3. The eccentric shaft assembly of the rotary engine according to claim 2, wherein said oil passage (210) comprises a first passage (211), said first passage (211) is provided along the axial direction of said rotary shaft (20), and the end of said first passage (211) extends to the outside of said bushing (10).

4. The eccentric shaft assembly of the rotary engine according to claim 3, wherein the oil passage (210) further comprises a plurality of second passages (212), the plurality of second passages (212) penetrating the first passages (211) and the peripheral wall of the rotary shaft (20) in the radial direction of the rotary shaft (20); at least one of the second passages (212) is located in the shaft sleeve (10), and the second passage (212) located in the shaft sleeve (10) is communicated with the oil hole (111).

5. Eccentric shaft assembly of a rotary engine, according to claim 4, characterised in that at least two of said second channels (212) of said plurality of second channels (212) are located inside said bushing (10).

6. Eccentric shaft assembly of a rotary engine, according to claim 4, characterised in that at least one of said second channels (212) of said plurality of second channels (212) is located outside said bushing (10).

7. Eccentric shaft assembly according to claim 4 characterised in that at least two of said second channels (212) of said plurality of second channels (212) are located outside said bushing (10); at least two second channels (212) positioned on the outer side of the shaft sleeve (10) are arranged along the axial direction of the rotating shaft (20);

and a second bearing is arranged on the rotating shaft (20), and the second bearing is positioned between the two second channels (212).

8. The eccentric shaft assembly of a rotary engine according to claim 3, wherein the end of the first passage (211) is provided with a block (213), and the block (213) is used for closing the opening of the first passage (211) on the end face of the rotary shaft (20).

9. The eccentric shaft assembly of the rotary engine according to any one of claims 1 to 8, wherein at least two positioning holes (120) are further formed in the bushing (10), and at least two positioning holes (120) are arranged in a staggered manner with respect to the eccentric shaft hole (110).

10. A rotary engine comprising the eccentric shaft assembly of the rotary engine according to any one of claims 1 to 9.