CN213510776U - Self-rotating valve mechanism and engine - Google Patents
Self-rotating valve mechanism and engine Download PDFInfo
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- CN213510776U CN213510776U CN202022206845.XU CN202022206845U CN213510776U CN 213510776 U CN213510776 U CN 213510776U CN 202022206845 U CN202022206845 U CN 202022206845U CN 213510776 U CN213510776 U CN 213510776U
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Abstract
The utility model relates to the technical field of engines, in particular to a self-rotating valve mechanism and an engine, wherein the self-rotating valve mechanism comprises a valve which is arranged on a cylinder cover in a penetrating way, a plurality of grooves are arranged at intervals around the axis of the valve at one end of the valve in a cylinder, and each groove is gradually deepened along the rotating direction of air flow in the cylinder; the spring upper seat assembly is sleeved at the upper end of the air valve; the spring lower seat is sleeved on the air valve and arranged on the air cylinder cover; and the reset spring is sleeved on the valve, one end of the reset spring is abutted to the spring upper seat assembly, and the other end of the reset spring is abutted to the spring lower seat. The utility model discloses under the prerequisite that need not to set up valve rotary mechanism, valve self can rotate to avoid the valve to take place the eccentric wear, the pit concentrates the scheduling problem, reduces the trouble of engine.
Description
Technical Field
The utility model relates to the technical field of engines, especially, relate to a self-rotating valve mechanism and engine.
Background
The multi-groove locking clamp and the multi-groove valve are valve mechanisms commonly used in the prior high-speed engine, and the valve can rotate along the axis of the valve in actual work due to the high speed of the engine and the action of a return spring force, so that the valve is abraded uniformly.
However, because the rotating speed of the low-speed diesel engine is low, the valve mechanism rotates very little or hardly in actual operation, so that the problems of eccentric wear, pockmark concentration and the like of the valve are easy to occur, and further a series of faults occur to the engine. In order to enable the valve to rotate on a low-speed engine, a part of engines begin to use a combination of a single-groove locking clamp and a single-groove valve, the return spring lower seat is mainly replaced by a valve rotating mechanism, the valve is driven to rotate through the rotation of the valve rotating mechanism, but the cost of the valve rotating mechanism is far greater than that of the spring lower seat, and therefore the cost is greatly increased.
Therefore, a self-rotating valve mechanism and an engine are needed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a from spin valve mechanism and engine, under the prerequisite that need not to set up valve rotary mechanism, valve self can rotate to avoid the valve to take place the partial wear, the pit concentrates the scheduling problem, reduces the trouble of engine.
To achieve the purpose, the utility model adopts the following technical proposal:
a self-rotating valve train comprising:
the air valve penetrates through the air cylinder cover, a plurality of grooves are formed in one end, located in the air cylinder, of the air valve around the axis of the air valve at intervals, and each groove is gradually deepened along the rotation direction of air flow in the air cylinder;
the spring upper seat assembly is sleeved at the upper end of the air valve;
the spring lower seat is sleeved on the air valve and arranged on the air cylinder cover;
and the reset spring is sleeved on the valve, one end of the reset spring is abutted to the spring upper seat assembly, and the other end of the reset spring is abutted to the spring lower seat.
Further, the valve includes interconnect and coaxial valve stem and the valve plate that sets up, the valve stem wears to establish on the cylinder cap, the valve plate is located in the cylinder, the recess is seted up the dish bottom of valve plate.
Further, the grooves are distributed on a plurality of concentric circles which are arranged at equal intervals on the bottom of the valve plate.
Further, the grooves on the same circle are arranged along the arc of the circle.
Further, the spring upper seat assembly comprises a spring upper seat and a valve lock clamp, the valve lock clamp is arranged on the valve rod in a sleeved mode, the spring upper seat is arranged on the valve lock clamp in a sleeved mode, the spring upper seat is abutted to the valve lock clamp, and the reset spring is abutted to the spring upper seat.
Further, the valve locking clamp comprises a first locking clamping piece and a second locking clamping piece, and the valve rod is arranged between the first locking clamping piece and the second locking clamping piece in a penetrating mode.
Furthermore, an annular groove is formed in the valve rod, a first protrusion matched with the annular groove is arranged on the first lock clamping piece, and a second protrusion matched with the annular groove is arranged on the second lock clamping piece.
Furthermore, the valve collet is conical, the outer conical surface of the valve collet is matched with the inner side surface of the spring upper seat, and the valve collet is connected with the spring upper seat in an interference fit manner.
Furthermore, a positioning part is arranged on the spring upper seat, the positioning part is annularly arranged on the outer side of the spring upper seat, and the return spring is abutted against the positioning part.
An engine is provided with the self-rotating valve mechanism.
The utility model has the advantages that:
the utility model provides a self-rotation valve mechanism, the valve is worn to establish on the cylinder head, a plurality of recesses have been seted up in the one end interval that the valve is located the cylinder around carminative axis, and every recess progressively deepens along the direction of rotation of air current in the cylinder, be provided with spring seat of honour subassembly and spring seat down on carminative, be provided with reset spring between spring seat of honour subassembly and spring seat down, when engine during operation, when the piston is reciprocating motion in the cylinder of engine, it is rotatory along certain direction to drive the interior air current of cylinder, when rotatory air current finally is stopped by the terminal position of recess along the recess rotation the same with its direction, the air current can produce the effort at the recess terminal, this power can produce a torque and then make the valve rotatory along self axis on the valve axis, thereby realize carminative autogiration. Through the mode, the valve can rotate on the premise of not needing to be provided with the valve rotating mechanism, so that the problems of eccentric wear, pockmark concentration and the like of the valve are avoided, and the faults of the engine are reduced.
The utility model provides an engine is provided with on it and is provided with as above autogyration valvetrain, under the prerequisite that need not to set up valve rotary mechanism, valve self can rotate to avoid the valve to take place partial wear, the pit concentrates the scheduling problem, reduces the trouble of engine.
Drawings
Fig. 1 is a schematic view of a self-rotating valve train of the present invention;
fig. 2 is a schematic diagram of a valve in a self-rotating valve train according to the present invention.
In the figure:
1. an air valve; 11. a valve stem; 12. a valve disc; 121. a groove; 2. a spring upper seat assembly; 21. a spring upper seat; 211. a positioning part; 22. a valve collet; 3. a spring lower seat; 4. a return spring.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable 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 the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In order to prevent the problems of eccentric wear, pockmark concentration and the like of the valve of the engine and reduce the faults of the engine from heat, as shown in figures 1-2, the utility model provides a self-rotating valve mechanism. This self-rotation valve mechanism includes: the valve 1, the spring upper seat assembly 2, the spring lower seat 3 and the return spring 4; the air valve 1 penetrates through the air cylinder cover, a plurality of grooves 121 are formed in one end, located in the air cylinder, of the air valve 1 around the axis of the air valve 1 at intervals, and each groove 121 is gradually deepened along the rotation direction of air flow in the air cylinder; the spring upper seat assembly 2 is sleeved at the upper end of the valve 1; the lower spring seat 3 is sleeved on the air valve 1 and arranged on the air cylinder cover; the reset spring 4 is sleeved on the valve 1, one end of the reset spring is abutted to the spring upper seat assembly 2, and the other end of the reset spring is abutted to the spring lower seat 3.
When the engine works, when the piston does reciprocating motion in the cylinder of the engine, airflow in the cylinder can be driven to rotate along a certain direction, when the rotating airflow rotates along the groove 121 with the same direction as the rotating airflow and is finally stopped by the terminal surface position of the groove 121, the airflow can generate acting force on the terminal surface of the groove 121, and the acting force can generate a torque on the axis of the valve 1 so as to enable the valve 1 to rotate along the axis of the valve 1, so that the automatic rotation of the valve 1 is realized. Through the mode, the valve 1 can rotate on the premise of not needing to be provided with the valve rotating mechanism, so that the problems of eccentric wear, pockmark concentration and the like of the valve 1 are avoided, and the faults of the engine are reduced.
Further, the valve 1 comprises a valve rod 11 and a valve disc 12 which are connected with each other and coaxially arranged, the valve rod 11 is arranged on the cylinder cover in a penetrating mode, the valve disc 12 is located in the cylinder, and the groove 121 is formed in the disc bottom of the valve disc 12. Through the arrangement, the valve rotating mechanism is not required to be arranged, and the valve 1 can actively rotate only by arranging the plurality of grooves 121 on the valve disc 12, so that the cost is reduced, and the structure is simple.
Further, the grooves 121 are distributed on a plurality of concentric circles disposed at equal intervals at the bottom of the valve disc 12. Specifically, the grooves 121 located on the same circle are disposed at equal intervals along the arc of the circle. In order to further improve the moment applied to the valve 1 during rotation, the grooves 121 are formed in a plurality of shapes, and the adjacent grooves 121 located on different concentric circles are arranged at equal intervals, so that the valve 1 is stressed uniformly during rotation, and the valve 1 is ensured to rotate smoothly. In the present embodiment, the final valve 1 rotation speed may be adjusted by the depth, number, etc. of the grooves 121, and the final depth of the grooves 121 and the number of the grooves 121 may be calculated according to the engine operating condition.
Further, the spring seat assembly 2 includes a spring seat 21 and a valve collet 22, the valve collet 22 is sleeved on the valve rod 11, the spring seat 21 is sleeved on the valve collet 22 and is abutted against the valve collet 22, and the return spring 4 is abutted against the spring seat 21. Through the arrangement, the processing difficulty of the spring upper seat assembly 2 is reduced, and meanwhile, the assembly is convenient.
Further, the valve locking clip 22 includes a first locking clip piece and a second locking clip piece, and the valve stem 11 is inserted between the first locking clip piece and the second locking clip piece. Through adopting first lock clamping piece and second lock clamping piece, first lock clamping piece and second lock clamping piece can separately be installed, have reduced the degree of difficulty of installation.
Furthermore, an annular groove is formed in the valve rod 11, a first protrusion matched with the annular groove is arranged on the first lock clamping piece, and a second protrusion matched with the annular groove is arranged on the second lock clamping piece. Through the arrangement, the strength of the self-rotating valve mechanism can be improved, and the valve locking clamp 22 is tightly connected with the valve 1. Specifically, in this embodiment, the annular groove is provided in plurality at intervals along the height direction of the valve 1, and similarly, the first protrusion and the second protrusion are also provided in plurality and correspond to the annular groove one to one, so as to further enhance the stability of the valve collet 22 in connection with the valve 1.
Further, the valve collet 22 is conical, the outer conical surface of the valve collet 22 is matched with the inner side surface of the spring upper seat 21, the valve collet 22 is connected with the spring upper seat 21 in an interference fit manner, the inner side surface of the valve collet 22 and the spring upper seat 21 is completely attached, the spring upper seat 21 and the valve collet 22 are locked by the wedge effect of the conical surface, and therefore the valve 1 and the valve collet 22 are prevented from rotating relatively to affect the normal operation of the valve 1.
Furthermore, the spring upper seat 21 is provided with a positioning portion 211, the positioning portion 211 is annularly provided on the outer side of the spring upper seat 21, and the return spring 4 abuts against the positioning portion 211. Through setting up location portion 211, the installation and the location of reset spring 4 of being convenient for guarantee that reset spring 4 compresses along its self axis at the during operation.
This embodiment still provides an engine, is provided with above autogyration valvetrain on it, need not to set up under the prerequisite of valvetrain, valve 1 self can rotate to avoid valve 1 to take place the eccentric wear, the pit is concentrated scheduling problem, reduces the trouble of engine.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A self-rotating valve mechanism, comprising:
the air valve (1) penetrates through the cylinder cover, a plurality of grooves (121) are formed in one end, located in the cylinder, of the air valve (1) at intervals around the axis of the air valve (1), and each groove (121) is gradually deepened along the rotation direction of air flow in the cylinder;
the spring upper seat assembly (2) is sleeved at the upper end of the air valve (1);
the spring lower seat (3) is sleeved on the air valve (1) and arranged on the air cylinder cover;
and the reset spring (4) is sleeved on the valve (1), one end of the reset spring is abutted to the spring upper seat assembly (2), and the other end of the reset spring is abutted to the spring lower seat (3).
2. A self-rotating valve mechanism according to claim 1, wherein the valve (1) comprises a valve stem (11) and a valve disc (12) which are connected with each other and coaxially arranged, the valve stem (11) is arranged through the cylinder cover, the valve disc (12) is arranged in the cylinder, and the groove (121) is arranged at the disc bottom of the valve disc (12).
3. A self-rotating valve mechanism according to claim 2, characterized in that said grooves (121) are distributed on a plurality of equally spaced concentric circles at the bottom of said valve disc (12).
4. A self-rotating valve mechanism according to claim 3, characterized in that said grooves (121) lying on the same circle are arranged along the arc of the circle.
5. A self-rotating valve mechanism according to claim 2, wherein the spring upper seat assembly (2) comprises a spring upper seat (21) and a valve collet (22), the valve collet (22) is sleeved on the valve stem (11), the spring upper seat (21) is sleeved on the valve collet (22) and is abutted against the valve collet (22), and the return spring (4) is abutted against the spring upper seat (21).
6. A self-rotating valve mechanism according to claim 5, characterized in that said valve locking clip (22) comprises a first locking clip piece and a second locking clip piece, said valve stem (11) being inserted between said first locking clip piece and said second locking clip piece.
7. A self-rotating valve mechanism according to claim 6, wherein an annular groove is formed in the valve stem (11), a first protrusion matching with the annular groove is formed on the first lock clamping piece, and a second protrusion matching with the annular groove is formed on the second lock clamping piece.
8. A self-rotating valve mechanism according to claim 5, characterized in that the valve collet (22) is conical, and the outer conical surface of the valve collet (22) is adapted to the inner side surface of the spring upper seat (21), and the valve collet (22) is connected with the spring upper seat (21) in an interference fit manner.
9. A self-rotating valve mechanism according to claim 5, wherein a positioning portion (211) is provided on the upper spring seat (21), the positioning portion (211) is provided around the outer side of the upper spring seat (21), and the return spring (4) abuts against the positioning portion (211).
10. An engine having a self-rotating valve train as claimed in any one of claims 1 to 9 disposed thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022206845.XU CN213510776U (en) | 2020-09-30 | 2020-09-30 | Self-rotating valve mechanism and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022206845.XU CN213510776U (en) | 2020-09-30 | 2020-09-30 | Self-rotating valve mechanism and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213510776U true CN213510776U (en) | 2021-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022206845.XU Active CN213510776U (en) | 2020-09-30 | 2020-09-30 | Self-rotating valve mechanism and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213510776U (en) |
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2020
- 2020-09-30 CN CN202022206845.XU patent/CN213510776U/en active Active
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