CN218509593U - Engine speed regulator structure - Google Patents
Engine speed regulator structure Download PDFInfo
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- CN218509593U CN218509593U CN202222308433.6U CN202222308433U CN218509593U CN 218509593 U CN218509593 U CN 218509593U CN 202222308433 U CN202222308433 U CN 202222308433U CN 218509593 U CN218509593 U CN 218509593U
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- rotating shaft
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Abstract
The utility model provides an engine speed regulator structure, include: axis of rotation, flyweight subassembly and speed governing lever, flyweight subassembly including support the cover, be fixed in the axis of rotation tip and with the synchronous pivoted mounting bracket of axis of rotation and with the mounting bracket rotate the first flyweight and the second flyweight of being connected, first flyweight include with the mounting bracket rotates the rotation portion of connecting and the supporting part that radially outwards extends along the axis of rotation from the rotation portion, supports the cover and establishes in the radial outside of axis of rotation, the supporting part with support cover contact setting, the second flyweight with the structure of first flyweight is the same. One end of the speed regulation lever is in contact with the support sleeve, and the other end of the speed regulation lever is connected with the fuel injection pump. The utility model discloses a reverse setting flies the hammer and supports the position of cover contact, will support the cover to establish on the mounting bracket and with the supporting part counterbalance of flying the hammer and hold, can effectively reduce the axial displacement distance that supports the cover at engine during operation, further reduce engine external volume and weight, realize lightweight and reduce cost's purpose.
Description
Technical Field
The utility model belongs to the technical field of the engine technique and specifically relates to an engine speed regulator structure.
Background
In the prior art, the mechanical speed regulator structure mainly comprises a flyweight structure and a centrifugal sliding disc structure, the two structures drive the speed regulator to generate axial displacement by utilizing rotary inertia force, and meanwhile, a steel ball or a sliding sleeve which is in contact with a speed regulation lever and generates interaction force is arranged at the tail end of a speed regulator shaft. Accordingly, there is a need for an engine governor arrangement that overcomes the above-identified deficiencies.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an engine speed regulator structure.
According to an aspect of the utility model, a provide an engine speed regulator structure, include:
a rotating shaft;
the flyweight assembly comprises a support sleeve, a mounting frame which is fixed at the end part of the rotating shaft and synchronously rotates with the rotating shaft, and a first flyweight and a second flyweight which are rotationally connected with the mounting frame, wherein the first flyweight and the second flyweight are uniformly distributed along the circumferential direction of the rotating shaft, the first flyweight rotates around a first axis, the second flyweight rotates around a second axis, and the axis of the rotating shaft is vertical to the plane formed by the first axis and the second axis;
the first flyweight comprises a rotating part which is rotatably connected with the mounting frame and a supporting part which extends outwards from the rotating part along the radial direction of the rotating shaft, the supporting sleeve is sleeved on the radial outer side of the rotating shaft, the supporting part is in contact with the supporting sleeve, and the second flyweight has the same structure as the first flyweight;
one end of the speed regulating lever is in contact with the support sleeve, the other end of the speed regulating lever is connected with the oil injection pump, and the support sleeve is positioned between the support part and the speed regulating lever;
the rotating shaft rotates to drive the flyweight assembly to rotate, the first flyweight and the second flyweight rotate around the first axis and the second axis respectively under the action of centrifugal force while rotating synchronously with the rotating shaft, so that the support sleeve is pushed to move axially, and the speed regulating lever is driven to rotate to regulate the oil injection quantity of the oil injection pump.
Preferably, the support sleeve comprises a sliding part extending along the axial direction of the rotating shaft and a limiting part extending outwards from the radial direction of the sliding part, one side of the limiting part is abutted against the support part, and the other side of the limiting part is abutted against the speed regulating lever.
Preferably, the outer end face of the mounting frame in the length direction is an arc face, the support sleeve is sleeved on the mounting frame, and the mounting frame and the inner wall of the sliding portion form clearance fit and play an axial guiding role in the support sleeve.
Preferably, the mounting bracket includes be used for with the fixed orifices of axis of rotation is fixed and be located the outside first mount and the second mount in fixed aperture, first mount and second mount are used for setting up first flyweight and second flyweight respectively, the structure of first mount and second mount is the same.
Preferably, the first fixing frame is provided with a rotating pin shaft along a first axis, and the rotating part of the first flyweight is rotatably connected with the first fixing frame through the rotating pin shaft; and the second fixing frame is provided with a rotating pin shaft along a second axis, and the rotating part of the second flyweight is rotatably connected with the second fixing frame through the rotating pin shaft.
Preferably, the first fixing frame and the second fixing frame both comprise a top plate and fixing arms extending from two sides of the width direction of the top plate along the axis direction of the rotating shaft, the fixing arms of the first fixing frame and the fixing arms of the second fixing frame extend in the same direction, and the rotating pin shaft is connected with the fixing arms.
Preferably, the fixing arm extends inwards along the axial direction of the rotating shaft, the first flyweight and the second flyweight comprise a third protruding portion extending towards one side of the top plate, and the third protruding portion abuts against the top plate to limit the first flyweight and the second flyweight to rotate towards a direction away from the top plate.
Preferably, the fixing arm extends inward along the axial direction of the rotating shaft, the rotating shaft includes a first protrusion portion that restricts the first flyweight and the second flyweight from rotating in a direction away from the top plate, the first protrusion portion protrudes outward in the circumferential direction of the rotating shaft, and the rotation of the first flyweight and the second flyweight is restricted by abutting against the support portion.
Preferably, the fixed arm extends inwards along the axial direction of the rotating shaft, the top plate is provided with a second protruding portion towards the first flyweight and the second flyweight, and the second protruding portion is abutted against the rotating portion to limit the first flyweight and the second flyweight to rotate towards the direction away from the top plate.
Preferably, the tip of axis of rotation is equipped with the non-cylindrical boss that is used for fixed mounting frame, the fixed orifices with boss cross sectional shape is the same and can freely overlap and establish, and the mounting bracket is located on the boss through the fixed orifices cover, restricts its self axial rotation and carries out axial fixity through bolt locking.
Compared with the prior art, the utility model provides an engine speed regulator structure has following beneficial effect:
through the position of reverse setting flyweight and support cover contact, will support the ways and establish on the mounting bracket and support with the supporting part counterbalance of flyweight, can effectively reduce the axial displacement distance of supporting the cover when the engine during operation, further reduce engine external volume and weight, realize lightweight and reduce cost's purpose.
Drawings
The invention will be described in further detail with reference to the following drawings and embodiments:
fig. 1 is a first perspective view of the engine governor structure of the present invention;
FIG. 2 is an exploded view of FIG. 1;
fig. 3 is a second perspective view of the engine governor structure of the present invention;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a perspective view of the mounting bracket of the present invention;
fig. 6 is a perspective view of the support sleeve of the present invention;
FIG. 7 is a cross-sectional view of FIG. 3;
FIG. 8 is an enlarged view of a portion of FIG. 7;
fig. 9 is a sectional view of embodiment 2 of the present invention;
FIG. 10 is an enlarged view of a portion of FIG. 9;
fig. 11 is a sectional view of embodiment 3 of the present invention;
fig. 12 is a sectional view of embodiment 4 of the present invention.
The novel hydraulic driving device comprises a rotating shaft 1, a rotating shaft 11, a boss 12, a bolt 12, a flyweight assembly 2, a supporting sleeve 21, a sliding portion 211, a limiting portion 212, a mounting frame 22, a fixing hole 221, a fixing hole 222, a first fixing frame 2221, a top plate 2222, a fixing arm 223, a second fixing frame 23, a first flyweight 231, a rotating portion 232, a supporting portion 233, a groove 24, a second flyweight 3, a speed regulating lever 31, a supporting arm 32, a first rocker arm 33, a second rocker arm 34, a connecting rod 35, a nut 36, a washer 4, a first axis 5, a second axis 6, a rotating pin shaft 7, a first protruding portion 8, a second protruding portion 9 and a third protruding portion 9.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. Moreover, in the interest of brevity and understanding, only one of the components having the same structure or function is illustrated schematically or designated in some of the drawings. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present application, the terms "first," "second," and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
Example 1
Referring to fig. 1 and 2, the utility model discloses an engine speed governor structure, include: the rotary shaft 1, the flyweight assembly 2 and the speed regulation lever 3, the rotary shaft 1 is rotatably connected with a crankshaft, and the crankshaft can also be directly used as the rotary shaft 1 in other embodiments. The flyweight assembly 2 includes a support sleeve 21, a mounting bracket 22, a first flyweight 23, and a second flyweight 24, the mounting bracket 22 is fixed to an end of the rotating shaft 1 and rotates in synchronization with the rotating shaft 1, and the end of the rotating shaft 1 points to the outside of the engine.
The first flyweights 23 and the second flyweights 24 are symmetrically disposed about the rotating shaft 1 and have the same structure, and in other embodiments, the number of flyweights may not be limited to 2, and a plurality of flyweights are uniformly distributed in the circumferential direction of the rotating shaft 1.
Referring to fig. 2 and 5, the mount 22 includes a first mount 222 for disposing the first flyweight 23, a second mount 223 for disposing the second flyweight 24, and a fixing hole 221 between the first mount 222 and the second mount 223. The first fixing frame 222 includes a top plate 2221 and fixing arms 2222 extending inward from both sides of the top plate 2221 in the width direction along the axial direction of the rotating shaft 1, and the first flyweights 23 are rotatably connected to the fixing arms 2222 by a rotating pin 6. The second holder 223 has the same structure as the first holder 222, and the second flyweight 24 is rotatably connected to the fixing arm 2222 of the second holder 223 through a rotating pin 6.
The first flyweight 23 rotates about the first axis 4, the second flyweight 24 rotates about the second axis 5, and the two rotating pins 6 are respectively disposed along the first axis 4 and the second axis 5 and connected to the fixing arm 2222. The axis of the rotating shaft 1 is perpendicular to the plane formed by the first axis 4 and the second axis 5. In other embodiments, the number of the mounts included in the mount 22 is not limited to two, and is the same as the number of the flyweights provided and evenly distributed in the circumferential direction of the rotating shaft 1.
The end of the rotating shaft 1 is provided with a non-cylindrical boss 11 for fixing the mounting frame 22, and the fixing hole 221 has the same shape as the cross section of the boss 11 and can be freely sleeved on the boss 11. The end of the rotating shaft 1 is further provided with a threaded hole (not shown), and the mounting frame 22 is sleeved on the boss 11 through the fixing hole 221 to limit the axial rotation of the mounting frame 22 and axially lock and fix the mounting frame 22 through the matching of the bolt 12 and the threaded hole.
Referring to fig. 7 and 8, the first flyweight 23 includes a rotating portion 231 rotatably connected to the fixed arm 2222, and a support portion 232 located on a side of the rotating portion 231 remote from the top plate 2221 and extending outward from the rotating portion 231 in the radial direction of the rotating shaft 1. The end surface of the first flyweight 23 close to the top plate 2221 is formed into a curved surface to prevent interference with the top plate 2221. The bending connection between the support 232 and the rotating part 231 is provided with a groove 233 depressed towards the direction of the rotating shaft 1, and the groove 233 can avoid stress concentration and prevent the support 232 from breaking.
The first flyweight 23 and the second flyweight 24 include a first protruding portion 7 extending to a side where the respective top plate 2221 is located, the first protruding portion 7 extends from a side of the rotating portion 231 close to the rotating shaft 1 to the top plate 2221, and when the first flyweight 23 and the second flyweight 24 are reset, the first flyweight 23 is restrained from rotating clockwise and the second flyweight 24 is restrained from rotating counterclockwise by abutting against the top plate 2221, so that a supporting effect of the supporting portion 232 on the supporting sleeve 21 is ensured.
Referring to fig. 2 and 3, the governor lever 3 includes an abutting arm 31, a first rocker arm 32, a second rocker arm 33, and a connecting rod 34. The first rocker arm 32 and the abutting arm 31 are fixedly arranged mutually and are in interference fit with the connecting rod 34, the second rocker arm 33 is fixed at the end part of one side of the connecting rod 34 far away from the abutting arm 31 through a nut 35, and a gasket 36 is arranged between the second rocker arm 33 and the nut 35. The governor lever 3 is connected to an injection pump (not shown) through an end of the first rocker 32, is connected to a governor handle (not shown) outside the engine through the second rocker 33, contacts the support sleeve 21 through two abutting arms 31, and abuts against the support sleeve 21 through the abutting arms 31.
Referring to fig. 4, 6 and 7, the support sleeve 21 is sleeved on the radial outer side of the rotating shaft 1, and the support sleeve 21 includes a sliding portion 211 extending along the axial direction of the rotating shaft 1 and a position-limiting portion 212 extending radially outward from the sliding portion 211. The support sleeve 21 is located between the support portion 232 and the speed adjusting lever 3, one side of the limiting portion 212 is abutted against the support portion 232, and the other side is abutted against the abutting arm 31 of the speed adjusting lever 3. The outer end face of the mounting frame 22 in the length direction is an arc face, the supporting sleeve 21 is sleeved on the mounting frame 22, and the mounting frame 22 is in clearance fit with the inner wall of the sliding portion 211 and plays an axial guiding role in the movement of the supporting sleeve 21.
The rotating shaft 1 rotates to drive the flyweight assembly 2 to rotate, and the first flyweight 23 and the second flyweight 24 rotate around the first axis 4 and the second axis 5 respectively under the action of centrifugal force while the first flyweight 23 and the second flyweight 24 rotate synchronously with the rotating shaft 1. The first flyweight 23 rotates counterclockwise around the rotating pin shaft 6, and the second flyweight 24 rotates clockwise around the rotating pin shaft 6, so as to push the support sleeve 21 to move axially, and further drive the speed adjusting lever 3 to rotate to adjust the oil injection amount of the oil injection pump.
Example 2
Referring to fig. 9 and 10, compared with embodiment 1, the difference is that in this embodiment, the first flyweight 23 and the second flyweight 24 do not need to be provided with the first protruding portion 7, the top plate 2221 of the first fixing frame 222 and the top plate 2221 of the second fixing frame 223 are respectively provided with the second protruding portion 8 in the direction of the first flyweight 23 and the second flyweight 24, and the second protruding portion 8 abuts against the rotating portion 231 to limit the first flyweight 23 and the second flyweight 24 from rotating in the direction away from the top plate 2221, that is, to limit the first flyweight 23 from rotating clockwise, and to limit the second flyweight 24 from rotating counterclockwise, so as to ensure the supporting effect of the supporting portion 232 on the supporting sleeve 21.
Example 3
Referring to fig. 11, the difference from embodiment 1 is that in this embodiment, the first flyweight 23 and the second flyweight 24 do not need to be provided with the first projection 7, the rotating shaft 1 includes a third projection 9 that restricts the rotation of the first flyweight 23 and the second flyweight 24 in a direction away from the top plate 2221, and the third projection 9 projects outward in the circumferential direction of the rotating shaft 1 and is located on the opposite side of the top plate 2221 from the first flyweight 23. The third boss 9 abuts against the support portions 232 of the first flyweight 23 and the second flyweight 24 to restrict clockwise rotation of the first flyweight 23 and counterclockwise rotation of the second flyweight 24, thereby ensuring the support effect of the support portions 232 on the support sleeve 21.
Example 4
Referring to fig. 12, compared with embodiment 1, the difference is that in this embodiment, the fixing arms 2222 of the first and second fixing frames extend outward along the axial direction of the rotating shaft 1, the rotating shaft 1 does not need to be provided with the first protruding portion 7, the second protruding portion 8, or the third protruding portion 9, the supporting portion 232 is located on one side of the rotating portion 231 close to the top plate 2221, and the top plate 2221 plays a limiting supporting role for the first flyweight 23 and the second flyweight 24.
When the first flyweight 23 rotates clockwise and the second flyweight 24 rotates counterclockwise, the support portion 232 abuts against the top plate 2221 to limit the first flyweight 23 and the second flyweight 24 from further rotating, so that the support effect of the support portion 232 on the support sleeve is ensured.
It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. An engine governor structure, comprising:
a rotating shaft;
the flyweight assembly comprises a support sleeve, a mounting frame which is fixed at the end part of the rotating shaft and synchronously rotates with the rotating shaft, and a first flyweight and a second flyweight which are rotationally connected with the mounting frame, wherein the first flyweight and the second flyweight are uniformly distributed along the circumferential direction of the rotating shaft, the first flyweight rotates around a first axis, the second flyweight rotates around a second axis, and the axis of the rotating shaft is vertical to the plane formed by the first axis and the second axis;
the first flyweight comprises a rotating part which is rotatably connected with the mounting frame and a supporting part which extends outwards from the rotating part along the radial direction of the rotating shaft, the supporting sleeve is sleeved on the radial outer side of the rotating shaft, the supporting part is in contact with the supporting sleeve, and the second flyweight has the same structure as the first flyweight;
one end of the speed regulating lever is in contact with the support sleeve, the other end of the speed regulating lever is connected with the fuel injection pump, and the support sleeve is positioned between the support part and the speed regulating lever;
the rotating shaft rotates to drive the flyweight assembly to rotate, the first flyweight and the second flyweight rotate around the first axis and the second axis respectively under the action of centrifugal force while rotating synchronously with the rotating shaft, so that the support sleeve is pushed to move axially, and the speed regulating lever is driven to rotate to regulate the oil injection quantity of the oil injection pump.
2. The engine governor structure of claim 1, wherein the support sleeve includes a sliding portion extending axially along the rotational shaft and a limiting portion extending radially outward from the sliding portion, one side of the limiting portion abutting against the support portion, and the other side of the limiting portion abutting against the governor lever.
3. The engine governor structure of claim 2, wherein the outer end surface of the mounting bracket in the length direction is a curved surface, the support sleeve is fitted over the mounting bracket, and the mounting bracket is in clearance fit with the inner wall of the sliding portion and provides axial guidance for the support sleeve.
4. The engine governor structure of claim 1, wherein the mounting bracket includes a fixing hole for fixing to the rotating shaft, and a first fixing bracket and a second fixing bracket located outside the fixing hole, the first fixing bracket and the second fixing bracket being respectively configured to receive a first flyweight and a second flyweight, and the first fixing bracket and the second fixing bracket being identical in structure.
5. The engine governor structure of claim 4, wherein the first mount has a pivot pin along a first axis, and the rotating portion of the first flyweight is rotatably coupled to the first mount via the pivot pin; and the second fixing frame is provided with a rotating pin shaft along a second axis, and the rotating part of the second flyweight is rotatably connected with the second fixing frame through the rotating pin shaft.
6. The engine governor structure of claim 5, wherein the first and second mounts each include a top plate and a fixed arm extending from both sides of the top plate in the width direction along the axis of the rotational shaft, the fixed arm of the first mount and the fixed arm of the second mount extend in the same direction, and the rotational pin is connected to the fixed arm.
7. The engine governor structure of claim 6, wherein the fixed arm extends axially inward along the rotational axis, and the first flyweight and the second flyweight include a third protrusion extending toward a side of the top plate, the third protrusion restricting rotation of the first flyweight and the second flyweight away from the top plate by abutting the top plate.
8. The engine governor structure of claim 6, wherein the fixed arm extends axially inward along a rotation shaft, the rotation shaft includes a first protrusion that restricts rotation of the first flyweight and the second flyweight in a direction away from the top plate, the first protrusion protrudes outward in a circumferential direction of the rotation shaft, and the rotation of the first flyweight and the second flyweight is restricted by interference with the support portion.
9. The engine governor structure of claim 6, wherein the fixed arm extends axially inward along the rotational axis, and the top plate has a second protrusion toward the first flyweight and the second flyweight, the second protrusion limiting the first flyweight and the second flyweight from rotating in a direction away from the top plate by interfering with the rotating portion.
10. The engine governor structure of claim 4, wherein the end of the rotating shaft is provided with a non-cylindrical boss for fixing the mounting bracket, the fixing hole has the same cross-sectional shape as the boss and can be freely sleeved, and the mounting bracket is sleeved on the boss through the fixing hole, so as to limit the axial rotation of the mounting bracket and is axially fixed by being locked by a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222308433.6U CN218509593U (en) | 2022-08-31 | 2022-08-31 | Engine speed regulator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222308433.6U CN218509593U (en) | 2022-08-31 | 2022-08-31 | Engine speed regulator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218509593U true CN218509593U (en) | 2023-02-21 |
Family
ID=85210435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222308433.6U Active CN218509593U (en) | 2022-08-31 | 2022-08-31 | Engine speed regulator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218509593U (en) |
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2022
- 2022-08-31 CN CN202222308433.6U patent/CN218509593U/en active Active
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