CN218817729U - Starter protective structure and use this protective structure's starter - Google Patents
Starter protective structure and use this protective structure's starter Download PDFInfo
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- CN218817729U CN218817729U CN202222816501.XU CN202222816501U CN218817729U CN 218817729 U CN218817729 U CN 218817729U CN 202222816501 U CN202222816501 U CN 202222816501U CN 218817729 U CN218817729 U CN 218817729U
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Abstract
The utility model relates to the field of starters, in particular to a starter protection structure and a starter using the same, wherein the protection structure comprises a sealing ring arranged in a driving gear in the starter; the sealing ring comprises a ring body, and a sleeving through hole is formed in the ring body; the sealing ring is sleeved on a driving shaft of the starter through a sleeving through hole; the utility model discloses a starter protection structure, which is mainly used for cutting off grease precipitated from an oil-containing bushing from being mixed with dust foreign matters to form oil sludge; therefore, the phenomenon that the isolator normally reciprocates along the axial direction of the driving shaft due to the existence of the oil sludge is avoided.
Description
Technical Field
The utility model relates to a starter field is a starter protective structure and uses this protective structure's starter particularly.
Background
The starter driving shaft assembly is mainly used for transmitting the torque of the armature assembly to the flywheel gear ring, dragging the flywheel to the engine for ignition, and separating the driving gear of the one-way clutch from the flywheel gear ring after the engine is successfully started.
The working process is as follows: starting an ignition switch, axially pulling out the isolator assembly by an electromagnetic switch through a shifting fork, enabling the isolator driving gear to be meshed with the flywheel gear ring, dragging the flywheel to rotate by a starter until the engine is successfully ignited, disconnecting the ignition switch, and axially withdrawing the isolator assembly under the action of an electromagnetic switch return spring so as to be separated from the flywheel gear ring to a static position, thereby completing a starting process.
The existing starter drive shaft assembly generally comprises a one-way device assembly, a drive shaft assembly, a limit ring, an inner gear ring and the like, wherein the one-way device assembly comprises a star wheel, a roller, a spring and a drive gear component (a gear and an oil-containing powder metallurgy bushing).
In the process that a driving gear assembly (a gear and an oil-containing powder metallurgy bushing) adopted at present is meshed with a flywheel gear ring to drag a flywheel to rotate, grease in the powder metallurgy bushing can be separated out and attached to a driving shaft; dust foreign matters in the flywheel housing of the engine are mixed with grease on the driving shaft and accumulated for a long time to form oil sludge.
The oil sludge is accumulated on the driving shaft, so that the sliding resistance between the driving gear component of the one-way clutch and the driving shaft is increased, the one-way clutch assembly cannot normally retract along the axial direction, and the one-way clutch assembly is separated from the flywheel gear ring, so that the starter is reversely dragged by the engine flywheel, and the starter fails in advance.
Therefore, in order to improve or solve the above problems, the existing starter needs to be optimally designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can reduce drive shaft protective structure that mud produced in the drive shaft.
In order to realize the purpose, the utility model discloses a technical scheme be:
a starter protecting structure comprises a sealing ring arranged in a driving gear in a starter; the sealing ring comprises a ring body, and a sleeve joint through hole is arranged on the ring body; the sealing ring is sleeved on a driving shaft of the starter through a sleeving through hole.
The ring body comprises an annular framework, and an annular sealing body is arranged on the annular framework.
The annular seal body comprises an annular support body connected to the annular framework, and a seal ring lip is arranged on the inner side of the annular support body.
The sealing ring lip is obliquely arranged; one end of the sealing ring lip is connected with the annular supporting body, and the other end of the sealing ring lip extends towards the central axis of the sleeving through hole.
One end of the sealing ring lip close to the annular framework is flush with the inner side surface of the annular framework.
One end of the sealing ring lip, which is far away from the annular supporting body, is provided with a step ring groove.
The annular sealing body is provided with an embedding groove, and the annular framework is installed in the embedding groove.
A starter includes a one-way clutch assembly; the one-way clutch assembly comprises a driving gear, and the driving gear is sleeved on the driving shaft; the driving gear comprises a gear body, and an assembling through hole is formed in the gear body; an oil-containing bushing is arranged in the assembling through hole; a starter protection structure is arranged in the assembling through hole of the driving gear; the protective structure is arranged at the edge of the assembling through hole; the oil-containing bushing is arranged on the side of the protective structure remote from the outside of the driving gear.
The assembling through hole comprises a cross-connecting through hole and a connecting through hole which are arranged on the tooth body, and the cross-connecting through hole is communicated with the connecting through hole; the inner diameter of the connecting through hole is smaller than that of the through hole; the oil-containing shaft bushing and the sealing ring are arranged in the through hole; the sealing ring is arranged at one end, close to the connecting through hole, of the cross-connecting through hole.
And the annular sealing body in the sealing ring is arranged towards the connecting through hole.
The utility model has the advantages that:
the utility model discloses a starter protection structure, which is mainly used for cutting off grease precipitated from an oil-containing bushing from being mixed with dust foreign matters to form oil sludge; therefore, the phenomenon that the existence of the oil sludge influences the normal reciprocating movement of the isolator along the axial direction of the driving shaft is avoided.
Drawings
The contents of the various figures of the specification and the labels in the figures are briefly described as follows:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an assembly view of the utility model in use.
Fig. 3 is a partially enlarged view of fig. 2.
The labels in the above figures are:
1. the one-way clutch assembly comprises a one-way clutch assembly, 2, a driving gear, 21, a gear body, 22, an assembling through hole, 222, a through connecting through hole, 221, a connecting through hole, 3, an oil-containing bushing, 4, a sealing ring, 41, an annular framework, 42, an annular sealing body, 421, an annular supporting body, 422, a sealing ring lip, 5 and a driving shaft.
Detailed Description
The following description of the preferred embodiments of the present invention will be made in further detail with reference to the accompanying drawings.
A starter protecting structure comprises a sealing ring 4 arranged in a driving gear 2 in a starter; the utility model discloses a starter protection structure, which is mainly used for cutting off grease precipitated from an oil-containing bushing 4 from being mixed with dust foreign matters to form oil sludge; therefore, the accumulation of the oil sludge on the driving shaft 5 is avoided, and the influence of the existence of the oil sludge on the normal reciprocating movement of the isolator along the axial direction of the driving shaft 5 is further avoided.
The utility model mainly discloses a starter protection structure, which mainly comprises a sealing ring 4; the utility model discloses a sealing ring 4 which mainly plays a role in separating and protecting, and when in actual arrangement, the sealing ring 4 is sleeved on a driving shaft 5 and is arranged at the inner side of a driving gear 2; the sealing ring 4 is arranged at the edge of the driving gear 2, and the sealing ring 4 is arranged at one side of the oil-containing bushing 4 far away from the starter fork; the arrangement mode can play a good role in protection and partition, and can prevent grease overflowing from the oil-containing shaft bushing 4 from being mixed with dust and foreign matters in the flywheel housing of the engine to form oil sludge when being used subsequently; thereby playing a good role in protection.
Specifically, the sealing ring 4 disclosed by the utility model comprises a ring body, and a sleeve joint through hole 44 is arranged on the ring body; the sealing ring 4 is sleeved on the driving shaft 5 of the starter through a sleeving through hole 44; the ring body plays a good supporting and protecting role, and the sleeving through hole 44 is of an assembling hole structure, so that the sealing ring 4 is conveniently sleeved on the driving shaft 5; thereby facilitating the arrangement of the sealing ring 4.
Further, in the present invention, the ring body includes an annular frame 41, and an annular sealing body 42 is disposed on the annular frame 41; in the utility model, the annular framework 41 plays a good longitudinal supporting role, mainly in order to ensure the whole structural strength of the sealing ring 4, the annular framework 41 is provided with the annular sealing body 42, the annular sealing body 42 serves as a sealing element in the actual use process, and the sealing and separating effect is realized in the follow-up process, in the utility model, the annular sealing body 42 can be made of rubber materials; the annular sealing body 42 and the annular framework 41 can be connected by a vulcanization process.
Furthermore, in the present invention, the annular sealing body 42 includes an annular supporting body 421 connected to the annular framework 41, the annular supporting body 421 is mainly used for the joint connection between the sealing ring 4 and the inner wall of the driving gear 2, and is an outer supporting structure of the entire annular sealing body 42, and a sealing ring lip 422 is arranged inside the annular supporting body 421; the sealing ring lip 422 plays a role in internal sealing, the sealing ring lip 422 is sleeved on the driving shaft 5, the inner side surface of the innermost side of the sealing ring lip 422 is attached to the outer side surface of the driving shaft 5, the sealing performance of the attachment part of the sealing ring lip 422 and the driving shaft 5 is ensured, a good blocking and plugging effect is achieved, and grease in the oil-containing shaft bushing 4 is prevented from overflowing along the axial direction of the driving shaft 5; thereby avoiding grease and dust foreign matters in the flywheel housing of the engine from mixing to form oil sludge on the driving shaft 5.
Further, in the present invention, the seal ring lip 422 is disposed obliquely; the sealing ring lip 422 is arranged in such a way, so that the sealing ring lip 422 has good deformation capacity, the self deformation capacity of the sealing ring 4 is increased, and the arrangement and the placement of the sealing ring 4 on the driving shaft 5 are facilitated; the assembly resistance during assembly is reduced; in actual arrangement, one end of the sealing ring lip 422 is connected with the annular supporting body 421, and the other end extends towards the central axis of the sleeving through hole 44; through the arrangement, one end of the sealing ring lip 422 is fixedly connected with the annular supporting body 421, and the other end of the sealing ring lip is equivalent to freely extending; such setting, seal ring lip 422 is in suspension state in other words, makes things convenient for seal ring lip 422 to take place deformation, makes things convenient for the assembly of sealing washer 4 then, and is concrete, the utility model discloses an above-mentioned design for seal ring lip 422 inner circle forms a through-hole structure, makes things convenient for the follow-up cup joint of sealing washer 4 on drive shaft 5, has made things convenient for the follow-up assembly of sealing washer 4 then.
When actually arranging, require the utility model discloses seal ring lip 422 inner circle forms a frustum type passageway, and the great one end of frustum type passageway opening is close to oiliness bush 4 and arranges, such arrangement for 4 inside certain grease memory capacities that have of sealing washer, reduction grease that can be better is excessive.
Furthermore, in the present invention, one end of the sealing ring lip 422 close to the annular frame 41 is flush with the inner side surface of the annular frame 41; here, the inner side surface of the annular frame 41 is a plane of the annular frame 41 on the side close to the oil-containing bush 4; with such an arrangement, no step or groove gap is formed between the seal ring lip 422 and the annular frame 41, so that grease or other impurities can be prevented from accumulating at the connection position of the seal ring lip 422 and the annular frame 41.
Furthermore, in the present invention, a stepped ring groove 43 is disposed on one end of the sealing ring lip 422 away from the ring-shaped supporting body 421; the ladder annular groove 43 plays a good role in reducing material and weight, and in addition, the ladder annular groove 43 is in the utility model discloses a three-section groove body structure, mainly including two circular grooves with different inner diameters and a frustum type groove, two circular grooves are connected through the frustum type groove, the arrangement makes the inner wall of the circular groove with smaller inner diameter can be attached to the driving shaft 5, the sealing ring 4 is ensured to be sleeved on the driving shaft 5, and the other circular groove with large inner diameter and the frustum type groove play a good role in avoiding, reducing the contact surface between the sealing ring 4 and the driving shaft 5; reducing the friction between the seal ring 4 and the drive shaft 5.
Furthermore, in the present invention, an embedding groove is provided on the annular sealing body 42, and the annular framework 41 is installed in the embedding groove; the utility model discloses an inlay the setting in groove, play fine positioning action of placing, made things convenient for the be assembled between annular skeleton 41 and the annular seal body 42.
A starter comprises a one-way clutch assembly 1; the isolator assembly 1 comprises a driving gear 2, and the driving gear 2 is sleeved on a driving shaft 5; the driving gear 2 comprises a gear body 21, and an assembling through hole 22 is formed in the gear body 21; an oil-containing bush 4 is arranged in the fitting through hole 22; a starter protection structure is arranged in the assembling through hole 22 of the driving gear 2; the shielding structure is arranged at the edge of the fitting through-hole 22; the oil-containing bushing 4 is arranged on the side of the guard structure remote from the outside of the driving gear 2; the utility model discloses a starter, it is main in isolator assembly 1 to arrange protective structure, through protective structure's setting, make drive shaft 5 arrange and cut off the structure, thus avoid the oiliness bush 4 to overflow along drive shaft 5; and then, the grease overflowing from the oil-containing shaft bushing 4 and dust foreign matters are prevented from being mixed on the driving shaft 5 to form oil sludge, and the influence on the normal operation of the one-way clutch caused by the existence of the oil sludge is avoided.
Further, in the present invention, the assembling through hole 22 includes a through hole 222 and a connecting through hole 221 provided on the tooth body 21, and the through hole 222 is communicated with the connecting through hole 221; the inner diameter of the connecting through hole 221 is smaller than that of the through hole 222; the oil-containing bush 4 and the seal ring 4 are arranged in the through hole 222; the sealing ring 4 is arranged at one end of the through hole 222 close to the connecting through hole 221; the utility model discloses a cross-under through-hole 222 and the difference of connect the through-hole 221 internal diameter for assembly through-hole 22 forms a shoulder hole structure, has made things convenient for arranging of oiliness bush 4 and sealing washer 4 in drive gear 2 to lay, avoids sealing washer 4 to break away from drive gear 2 along assembly through-hole 22 axial displacement.
Further, in the present invention, the annular sealing body 42 in the sealing ring 4 is disposed toward the connecting through hole 221; the utility model discloses a such arrangement makes the utility model discloses a sealing washer 4 when playing fine sealed effect, the clearance internal storage of grease between seal ring lip 422 and annular seal body 42 of avoiding that can also be fine.
Obviously the specific implementation of the present invention is not limited by the above-mentioned manner, and various insubstantial improvements made by the method concept and the technical solution of the present invention are all within the protection scope of the present invention.
Claims (10)
1. A starter protection structure is characterized by comprising a sealing ring arranged in a driving gear in a starter; the sealing ring comprises a ring body, and a sleeve joint through hole is arranged on the ring body; the sealing ring is sleeved on a driving shaft of the starter through a sleeving through hole.
2. The starter motor protection structure according to claim 1, wherein the ring body includes an annular frame, and an annular sealing body is provided on the annular frame.
3. The starter motor protection structure according to claim 2, wherein the annular sealing body includes an annular support body connected to the annular frame, and a sealing ring lip is provided inside the annular support body.
4. The starter guard structure according to claim 3, wherein the seal ring lip is arranged obliquely; one end of the sealing ring lip is connected with the annular support body, and the other end of the sealing ring lip extends towards the central axis of the sleeved through hole.
5. The starter motor protection structure according to claim 3, wherein an end of the seal ring lip close to the annular frame is flush with an inner side surface of the annular frame.
6. The starter guard structure according to claim 3 wherein the end of the sealing lip remote from the annular support body is provided with a stepped annular groove.
7. The starter motor protection structure according to claim 2, wherein the annular sealing body is provided with an embedded groove, and the annular frame is mounted in the embedded groove.
8. A starter is characterized by comprising a one-way clutch assembly; the one-way clutch assembly comprises a driving gear, and the driving gear is sleeved on a driving shaft; the driving gear comprises a gear body, and an assembling through hole is formed in the gear body; an oil-containing bushing is arranged in the assembling through hole; the starter protection structure according to any one of claims 1 to 7 is arranged in the assembling through hole of the driving gear; the protective structure is arranged at the edge of the assembling through hole; the oil-containing bushing is arranged on a side of the guard structure remote from an outer side of the drive gear.
9. The starter according to claim 8, wherein the fitting through-hole includes a through-hole and a connecting through-hole provided in the gear body, the through-hole communicating with the connecting through-hole; the inner diameter of the connecting through hole is smaller than that of the through hole; the oil-containing shaft bushing and the sealing ring are arranged in the through hole; the sealing ring is arranged at one end, close to the connecting through hole, of the cross-connecting through hole.
10. The starter according to claim 9, wherein the annular seal body in the seal ring is disposed toward the connecting through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222816501.XU CN218817729U (en) | 2022-10-25 | 2022-10-25 | Starter protective structure and use this protective structure's starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222816501.XU CN218817729U (en) | 2022-10-25 | 2022-10-25 | Starter protective structure and use this protective structure's starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218817729U true CN218817729U (en) | 2023-04-07 |
Family
ID=87251620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222816501.XU Active CN218817729U (en) | 2022-10-25 | 2022-10-25 | Starter protective structure and use this protective structure's starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218817729U (en) |
-
2022
- 2022-10-25 CN CN202222816501.XU patent/CN218817729U/en active Active
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