CN216895724U - Shifting fork shaft with oil guide groove structure - Google Patents
Shifting fork shaft with oil guide groove structure Download PDFInfo
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- CN216895724U CN216895724U CN202220467512.9U CN202220467512U CN216895724U CN 216895724 U CN216895724 U CN 216895724U CN 202220467512 U CN202220467512 U CN 202220467512U CN 216895724 U CN216895724 U CN 216895724U
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- oil
- shifting fork
- fork shaft
- shaft
- guide groove
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Abstract
The utility model discloses a shifting fork shaft with an oil guide groove structure, which comprises a shifting fork shaft, wherein two oil guide mechanisms matched with an upper shaft hole of a shifting fork are arranged on the peripheral side of the shifting fork shaft, and each oil guide mechanism comprises: the oil guide groove is arranged on the outer peripheral side of the shifting fork shaft, and an opening of the oil guide groove is obliquely arranged; the oil storage cavity is limited in the shifting fork shaft, and lubricating oil is filled in the oil storage cavity; and the oil filling hole is arranged on the outer peripheral side of the shifting fork shaft and communicated with the oil storage cavity, and a sealing block is detachably arranged on the oil filling hole. The shifting fork shaft of the utility model keeps high lubricity all the time between the shifting fork and the inner wall of the shaft hole on the shifting fork through the installation of the oil guide mechanism, avoids the conditions of blocking and abrasion caused by overlarge friction between the shifting fork shaft and the shaft hole when the shifting fork shaft rotates, and can control the amount of lubricating oil on the surface of the shifting fork shaft and avoid the waste of the lubricating oil.
Description
Technical Field
The utility model belongs to the technical field of shifting fork shafts, and particularly relates to a shifting fork shaft with an oil guide groove structure.
Background
The shifting fork shaft is a part on the automobile gearbox, and the shifting fork shaft is matched with the shifting fork to realize the gear shifting work of the automobile. However, when the existing shifting fork shaft is installed, the shifting fork shaft directly penetrates through the shaft hole of the shifting fork, no treatment is carried out on the contact surface between the shifting fork shaft and the shaft hole, the shifting fork shaft and the shaft hole are rubbed by vibration generated in the operation process of the gearbox, and after the shifting fork shaft is used for a long time, the situation of clamping during operation of the shifting fork shaft is caused, and the stability of installation of the shifting fork shaft in the shifting fork is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a shifting fork shaft with an oil guide groove structure, which can realize the lubrication between the shifting fork shaft and a shaft hole of the shifting fork, reduce the ear friction between the shifting fork and the shaft hole and ensure the stable operation of the shifting fork.
The utility model relates to a shifting fork shaft with an oil guide groove structure, which comprises a shifting fork shaft, wherein two oil guide mechanisms matched with an upper shaft hole of a shifting fork are arranged on the outer peripheral side of the shifting fork shaft, and each oil guide mechanism comprises:
the oil guide groove is arranged on the outer peripheral side of the shifting fork shaft, and an opening of the oil guide groove is obliquely arranged;
the oil storage cavity is limited in the shifting fork shaft, and lubricating oil is filled in the oil storage cavity;
the oil filler point is arranged on the outer peripheral side of the shifting fork shaft and communicated with the oil storage cavity, and a sealing block is detachably arranged on the oil filler point
The oil conveying block is arranged in the oil storage cavity in a sliding mode, extends into the oil guide groove and is connected with the oil storage cavity through a spring;
the oil absorption block is arranged on one side end face of the oil transportation block, which extends into the oil guide groove.
Preferably, the two oil guide mechanisms are distributed on the outer peripheral side of the shift fork shaft in the radial direction of the shift fork shaft.
Preferably, the shifting fork shaft is further provided with two pin shaft holes penetrating through the shifting fork shaft, and the two pin shaft holes and the two oil guide mechanisms are alternately arranged on the shifting fork shaft.
Preferably, each oil guide mechanism's oil guide groove quantity is two at least, and a plurality of oil guide groove is along the circumferencial direction of declutch shift axle is equidistant to be set up.
Preferably, the opening of the oil guide groove is gradually reduced towards the center line direction of the shifting fork shaft.
Preferably, the number of the oil storage cavities is equal to that of the oil guide grooves, and the oil storage cavities are communicated with one another.
Compared with the prior art, the utility model has the advantages that:
1. through the setting of oil guide groove, pack lubricating oil between declutch shift shaft and shift fork shaft hole for when the shift fork contacts with the shaft hole inner wall on the shift fork, keep high lubricity constantly, guarantee the low friction between declutch shift shaft and shift fork shaft hole, because of too big with the shaft hole friction when avoiding declutch shift shaft to rotate, take place the condition of card pause, wearing and tearing.
2. Due to the separation of the oil absorption block between the oil guide groove and the oil delivery block, the output quantity of the lubricating oil in the oil storage cavity to the oil guide groove is controlled, and the lubricating oil in the oil storage cavity is prevented from being discharged in large quantity, so that the waste of the lubricating oil is avoided.
3. Because the opening of the oil guide groove is obliquely arranged, when the shifting fork shaft does not run, one part of lubricating oil on the oblique side wall of the oil guide groove flows under the action of gravity, flows towards the direction close to the oil absorption block in the oil guide groove, and the other part of lubricating oil flows to the space between the shifting fork shaft and the shaft hole of the pulling and inserting part, so that the lubrication between the shifting fork shaft and the shaft hole is ensured, and the waste of the lubricating oil is avoided.
4. Due to the fact that the two oil holes are distributed, even if the shifting fork shaft is in the installation state in the gearbox, the sealing block can be opened to add lubricating oil into the oil storage cavity.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a sectional view taken along the line a-a of fig. 1 according to the present invention.
Fig. 3 is a partially enlarged view of the projection 2 of the present invention at the position B.
The reference numbers in the figures illustrate:
10. a fork shaft; 11. a pin shaft hole; 12. an oil filler hole; 13. an oil guide groove; 14. an oil storage chamber; 15. an oil conveying block; 16. an oil absorption block.
Detailed Description
The first embodiment is as follows: please refer to fig. 1-3, which is a fork shaft with an oil guiding groove structure, and includes a fork shaft 10, the fork shaft 10 is provided with two pin shaft holes 11 and two oil guiding mechanisms, the two pin shaft holes 11 and the two oil guiding mechanisms are alternately arranged on the fork shaft 10, the two pin shaft holes 11 penetrate through the fork shaft 10, the periphery of the fork shaft 10 is further provided with two oil injection holes 12, and each oil injection hole 12 is detachably provided with a sealing block;
the oil guide assembly comprises oil guide grooves 13 formed in the outer peripheral side of the shifting fork shaft 10, the openings of the oil guide grooves 13 are arranged in an inclined mode, the openings of the oil guide grooves 13 are gradually reduced towards the central line direction of the shifting fork shaft 10, the number of the oil guide grooves 13 is at least two, and the oil guide grooves 13 are arranged at equal intervals along the circumferential direction of the shifting fork shaft 10;
the shift fork shaft 10 is internally limited with oil storage cavities 14 with the same number as the oil guide grooves 13, the oil storage cavities 14 are communicated with one another, the oil storage cavities 14 of the same oil guide mechanism are communicated with the oil filling hole 12, lubricating oil is filled in the oil storage cavities 14, the oil storage cavities 14 are internally and slidably connected with oil conveying blocks 15 extending into the oil guide grooves 13, the oil conveying blocks 15 are connected with the oil storage cavities 14 through springs, and oil absorbing blocks 16 are arranged on the end faces, extending into the oil guide grooves 13, of the oil conveying blocks 14.
Before the mounting of the shifting fork shaft 10, lubricating oil is injected into the oil storage cavity 14 through the oil injection hole 12, and after the lubricating oil is filled, the oil injection hole 12 is sealed by using a sealing block, so that the leakage of the lubricating oil in the oil storage cavity 14 is avoided;
when the shifting fork shaft 10 is installed and rotates, the oil conveying blocks 15 in the oil guide grooves 13 on the shifting fork shaft 10 are intermittently contacted with the inner wall of a shifting fork hole, the oil conveying blocks 15 are extruded by the inner wall of the shifting fork hole, the sliding of the oil conveying blocks 15 in the oil storage cavity 14 is controlled, and in the sliding process of the oil conveying blocks 15, lubricating oil in the oil storage cavity 14 is conveyed to the oil absorption block 16, so that the lubricating oil is attached to the oil absorption block 16, the filling of the lubricating oil is kept in the oil guide grooves 13 at all times, so that when the shifting fork shaft 10 is contacted with the inner wall of the shaft hole on the shifting fork, the high lubricity is kept at all times, the low friction between the shifting fork shaft 10 and the shaft hole of the shifting fork is ensured, and the blocking and abrasion caused by the overlarge friction between the shifting fork shaft 10 and the shaft hole when the shifting fork shaft 10 rotates are avoided;
furthermore, due to the blocking of the oil absorption block 16 between the oil guide groove 13 and the oil delivery block 15, the output quantity of the lubricating oil in the oil storage cavity 14 to the oil guide groove 13 is controlled, and the waste of the lubricating oil caused by the discharge of a large amount of the lubricating oil in the oil storage cavity 14 is avoided;
furthermore, the opening of the oil guide groove 13 is arranged in an inclined manner, and the opening of the oil guide groove 13 is gradually reduced towards the direction of the central line of the shifting fork shaft 10, so that when the shifting fork shaft does not run, a part of lubricating oil on the inclined side wall of the oil guide groove 13 flows in the oil guide groove 13 in the direction close to the oil suction block 16 under the action of gravity, and the other part of lubricating oil flows to the space between the shifting fork shaft 10 and the plugged shaft hole, so that the lubrication between the shifting fork shaft 10 and the shaft hole is ensured, and the waste of the lubricating oil is avoided;
further, the positions of the two oil holes 12 are distributed so that the shift fork 10 can open the seal block to add lubricating oil to the oil reservoir 14 even in the mounted state in the transmission.
It is to be understood that the described embodiments are merely a few embodiments of the utility model and 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 invention.
Claims (6)
1. The utility model provides a declutch shift shaft with lead oil groove structure which characterized in that: including declutch shift shaft (10), the periphery side of declutch shift shaft (10) has arranged two and has led oil mechanism with shift fork shaft hole complex, every it includes to lead oil mechanism:
the oil guide groove (13) is arranged on the outer peripheral side of the shifting fork shaft (10), and an opening of the oil guide groove (13) is obliquely arranged;
the oil storage cavity (14) is limited in the shifting fork shaft (10), and lubricating oil is filled in the oil storage cavity (14);
the oil filling hole (12) is arranged on the outer peripheral side of the shifting fork shaft (10) and communicated with the oil storage cavity (14), and a sealing block is detachably arranged on the oil filling hole (12);
the oil conveying block (15) is arranged in the oil storage cavity (14) in a sliding mode, the oil conveying block (15) extends into the oil guide groove (13), and the oil conveying block (15) is connected with the oil storage cavity (14) through a spring;
and the oil absorption block (16) is arranged on one side end face of the oil conveying block (15) extending into the oil guide groove (13).
2. The shift fork shaft with the oil guide groove structure as claimed in claim 1, wherein: the two oil guide mechanisms are distributed on the outer peripheral side of the shifting fork shaft (10) along the radial direction of the shifting fork shaft (10).
3. The shift fork shaft with the oil guide groove structure as claimed in claim 1, wherein: the shifting fork shaft (10) is further provided with two pin shaft holes (11) penetrating through the shifting fork shaft (10), and the two pin shaft holes (11) and the two oil guide mechanisms are alternately arranged on the shifting fork shaft (10).
4. The shift fork shaft with the oil guide groove structure as claimed in claim 1, wherein: every lead oil groove (13) quantity of leading oily mechanism and be two at least, a plurality of lead oil groove (13) and follow the circumferencial direction of declutch shift shaft (10) is equidistant to be set up.
5. The shift fork shaft with the oil guide groove structure as claimed in claim 1, wherein: the opening of the oil guide groove (13) is gradually reduced towards the direction of the central line of the shifting fork shaft (10).
6. The shift fork shaft with the oil guide groove structure as claimed in claim 1, wherein: the number of the oil storage cavities (14) is equal to that of the oil guide grooves (13), and the oil storage cavities (14) are communicated with one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220467512.9U CN216895724U (en) | 2022-03-04 | 2022-03-04 | Shifting fork shaft with oil guide groove structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220467512.9U CN216895724U (en) | 2022-03-04 | 2022-03-04 | Shifting fork shaft with oil guide groove structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216895724U true CN216895724U (en) | 2022-07-05 |
Family
ID=82188867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220467512.9U Active CN216895724U (en) | 2022-03-04 | 2022-03-04 | Shifting fork shaft with oil guide groove structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216895724U (en) |
-
2022
- 2022-03-04 CN CN202220467512.9U patent/CN216895724U/en active Active
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