CN218236042U - Axial positioning structure of driving gear - Google Patents
Axial positioning structure of driving gear Download PDFInfo
- Publication number
- CN218236042U CN218236042U CN202222436681.9U CN202222436681U CN218236042U CN 218236042 U CN218236042 U CN 218236042U CN 202222436681 U CN202222436681 U CN 202222436681U CN 218236042 U CN218236042 U CN 218236042U
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- ring
- boss
- snap ring
- axial
- driving gear
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model belongs to the axial positioning field, in particular to drive gear axial positioning structure. The utility model discloses a location structure includes auxiliary tank drive gear, and auxiliary tank drive gear's epaxial card annular and two at least positioning groove of seting up set up the snap ring in the card annular, and snap ring one side sets up the bearing, and the snap ring opposite side sets up the solid fixed ring of retaining ring, and two at least location bosss are seted up to the solid fixed ring inner circle of retaining ring, and the solid fixed ring's of retaining ring location boss inlays to be established in positioning groove. The axial stress bearing capacity of the structure is enhanced by additionally arranging the retaining ring fixing rings, the stability of the device under the axial acting force is improved, the reliability is good, in addition, the additionally arranged retaining ring fixing rings are simple in structure, the original device is changed less, and the device is easy to transform and is convenient to install.
Description
Technical Field
The utility model belongs to the axial positioning field, in particular to drive gear axial positioning structure.
Background
In the design of a double-intermediate shaft transmission assembly, the axial positioning of parts is generally realized by adopting snap ring positioning. For example: the positioning of a shaft bearing in a shaft assembly, the positioning of a rear bearing in a middle shaft assembly and the positioning of a rear bearing in an auxiliary box middle shaft assembly are all positioned by adopting clamping rings, and the positioning mode has the advantages of mature technology, low cost (the clamping rings are standard parts) and convenience in assembly. Because the snap ring is expanded by the snap ring pliers and then sleeved in the snap ring groove during the assembly of the snap ring, the assembly mode determines that the snap ring cannot be made to be very thick (if the snap ring is made to be very thick, the snap ring pliers cannot expand the snap ring). This feature determines that the snap ring alone cannot withstand significant axial forces. If the axial force is large, the snap ring will be crushed (broken or pulled out). For example: if a single snap ring axial bearing is adopted in the auxiliary box driving gear assembly of the double-intermediate-shaft transmission of the company, the phenomenon that the snap ring is pressed and broken is frequent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the aforesaid not enough, provide a drive gear axial positioning structure, the performance is stable when this structure bears the axial effort, good reliability, and simple structure reforms transform former equipment, easily installs.
In order to achieve the purpose, the utility model adopts the technical scheme as follows:
the utility model provides a drive gear axial positioning structure, includes auxiliary tank drive gear, and auxiliary tank drive gear's epaxial card annular and two at least positioning groove of seting up set up the snap ring in the card annular, and snap ring one side sets up the bearing, and the snap ring opposite side sets up the solid fixed ring of retaining ring, and two at least location bosss are seted up to the solid fixed ring inner circle of retaining ring, and the solid fixed ring's of retaining ring location boss inlays to be established in positioning groove.
A boss is formed between the clamping ring groove and the positioning groove, the radius of the boss is smaller than the shaft radius of the auxiliary box driving gear, and the retainer ring fixing ring is arranged on the boss.
And a positioning boss of the retainer ring fixing ring is provided with a chamfer.
The retaining ring is fixed the solid fixed ring axial direction and is provided with the protection boss, and the solid fixed ring's of retaining ring protection boss is located the solid fixed ring edge of retaining ring.
The internal diameter of the protection boss of the retainer ring fixing ring is larger than the external diameter of the retainer ring, and the height of the protection boss of the retainer ring fixing ring is smaller than the thickness of the retainer ring.
The snap ring is annular, and the internal diameter of snap ring is the same with the external diameter of snap ring groove.
The bearing is a deep groove ball bearing.
The bearing is embedded in a bearing hole of the transmission shell.
Compared with the prior art, the utility model discloses beneficial effect who has as follows:
the utility model discloses a location structure includes auxiliary tank drive gear, and auxiliary tank drive gear's epaxial card annular of seting up and two at least positioning groove set up the snap ring in the card annular, and snap ring one side sets up the bearing, and the snap ring opposite side sets up retaining ring solid fixed ring, and two at least location bosss are seted up to retaining ring solid fixed ring inner circle, and retaining ring solid fixed ring's location boss inlays to be established in positioning groove. The structure axial stress bearing capacity is enhanced by additionally arranging the retaining ring fixing ring, the stability of the device under the axial acting force is improved, the reliability is good, in addition, the additionally arranged retaining ring fixing ring is simple in structure, the original device is changed less, and the device is easy to transform and convenient to install.
Furthermore, a boss is formed between the clamping ring groove and the positioning groove, the radius of the boss is smaller than the axial radius of the auxiliary box driving gear, the retainer ring fixing ring is arranged on the boss, the radius of the boss is smaller than the axial radius of the auxiliary box driving gear, and after the retainer ring fixing ring is installed with the boss in a matched mode, the stress bearing area between the retainer ring fixing ring and the shaft is increased, and the stability of the structure is enhanced.
Furthermore, a positioning boss of the retainer ring fixing ring is provided with a chamfer, so that the installation is convenient.
Drawings
FIG. 1 is a schematic view of the axial positioning structure of the driving gear of the present invention;
FIG. 2 is a schematic view of an axial positioning assembly of a conventional drive gear;
FIG. 3 is an axial positioning and assembling view of the driving gear of the present invention;
FIG. 4 is a schematic view of the driving gear of the auxiliary box of the present invention;
FIG. 5 is a side view of the retainer ring of the present invention;
fig. 6 is a front view of the retainer ring fixing ring of the present invention.
Wherein, 1-the auxiliary box drives the gear; 2-a transmission housing; 3-a bearing; 4-a snap ring; 5-a retainer ring fixing ring; 6-a clamping ring groove; 7-positioning the groove; 8-boss; 9-positioning the boss.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figure 1, the axial positioning structure of the driving gear comprises an auxiliary box driving gear 1, wherein a clamping ring groove 6 and at least two positioning grooves 7 are formed in the shaft of the auxiliary box driving gear 1, a clamping ring 4 is arranged in the clamping ring groove 6, a bearing 3 is arranged on one side of the clamping ring 4, a retaining ring fixing ring 5 is arranged on the other side of the clamping ring 4, at least two positioning bosses 9 are formed in the inner ring of the retaining ring fixing ring 5, and the positioning bosses 9 of the retaining ring fixing ring 5 are embedded in the positioning grooves 7.
Preferably, as shown in fig. 1, fig. 2 and fig. 3, the positioning structure includes a sub-tank driving gear 1, a snap ring groove 6 and at least two positioning grooves 7 are provided on a shaft of the sub-tank driving gear 1, a snap ring 4 is provided in the snap ring groove 6, the snap ring 4 is matched with the snap ring groove 6 to be used for positioning the driving gear, a bearing 3 is provided on one side of the snap ring 4, a retainer ring fixing ring 5 is provided on the other side of the snap ring 4, at least two positioning bosses 9 are provided on an inner ring of the retainer ring fixing ring 5, the positioning bosses 9 are used for preventing the retainer ring fixing ring 5 from loosening, and the positioning bosses 9 of the retainer ring fixing ring 5 are embedded in the positioning grooves 7. Through addding retaining ring solid fixed ring 5, increased snap ring 4's lifting surface area, strengthened structure axial atress bearing capacity, stability when having improved the device and receiving axial effort, good reliability, in addition, the solid fixed ring 5 simple structure of retaining ring that adds, only need set up two at least positioning groove 7 at the epaxial installation that just can accomplish retaining ring solid fixed ring 5 of auxiliary tank drive gear 1, change less to former device, easily reform transform and surely be convenient for the installation.
As shown in fig. 4, a boss 8 is formed between the snap ring groove 6 and the positioning groove 7, the radius of the boss 8 is smaller than the shaft radius of the sub-tank driving gear 1, and the retainer ring fixing ring 5 is arranged on the boss 8. The radius of the boss 8 is smaller than the shaft radius of the auxiliary box driving gear 1, and after the retaining ring fixing ring 5 and the boss 8 are installed in a matched mode, the stress bearing area between the retaining ring fixing ring 5 and the shaft is increased, the axial stress bearing capacity of the structure is enhanced, and the stability of the structure is further enhanced.
Preferably, as shown in fig. 6, a positioning boss 9 of the retainer ring fixing ring 5 is provided with a chamfer to facilitate press-fitting the retainer ring fixing ring 5 onto the shaft of the sub-tank driving gear 1.
As shown in fig. 5 and 6, the retaining ring fixing ring 5 is provided with a protection boss in the axial direction, and the protection boss of the retaining ring fixing ring 5 is located at the edge of the retaining ring fixing ring 5.
As shown in fig. 1 and 3, the inner diameter of the protection boss of the retainer ring fixing ring 5 is larger than the outer diameter of the retainer ring 4, and the height of the protection boss of the retainer ring fixing ring 5 is smaller than the thickness of the retainer ring 4.
The snap ring 4 is circular, and the inner diameter of the snap ring 4 is the same as the outer diameter of the snap ring groove 6.
The bearing 3 is a deep groove ball bearing.
As shown in fig. 3, the bearing 3 is fitted into a bearing hole of the transmission case 2.
Preferably, during assembly, the bearing 3 is firstly pressed on the auxiliary box driving gear 1, then the snap ring 4 is arranged in the snap ring groove 6 of the auxiliary box driving gear 1 by using snap ring pliers, and then the retainer ring fixing ring 5 is pressed on the auxiliary box driving gear 1, so that the retainer ring fixing ring 5 is ensured to press the boss 8 at the A position. And finally, pressing the assembled whole body into a bearing hole of the transmission shell 2 to finish assembly.
Further, when the snap ring 4 receives a large axial force, the received axial force is completely transmitted to the retainer ring fixing ring 5. When the snap ring 4 is acted on by radial force, the snap ring is limited by the step of the retainer ring fixing ring 5, so that the snap ring 4 is ensured not to be extruded or broken.
In summary, the above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a drive gear axial positioning structure, a serial communication port, including auxiliary tank drive gear (1), auxiliary tank drive gear (1) epaxial seting up snap ring groove (6) and two at least positioning groove (7), set up snap ring (4) in snap ring groove (6), snap ring (4) one side sets up bearing (3), snap ring (4) opposite side sets up the solid fixed ring of retaining ring (5), two at least location boss (9) are seted up to solid fixed ring of retaining ring (5) inner circle, location boss (9) of the solid fixed ring of retaining ring (5) are inlayed and are established in positioning groove (7).
2. The axial positioning structure of the driving gear as claimed in claim 1, characterized in that a boss (8) is formed between the snap ring groove (6) and the positioning groove (7), the radius of the boss (8) is smaller than the axial radius of the auxiliary box driving gear (1), and the retainer ring fixing ring (5) is arranged on the boss (8).
3. The axial positioning structure of the driving gear as claimed in claim 2, characterized in that the positioning boss (9) of the retainer ring fixing ring (5) is chamfered.
4. The axial positioning structure of the driving gear according to claim 3, wherein the retainer ring fixing ring (5) is provided with a protection boss in the axial direction, and the protection boss of the retainer ring fixing ring (5) is located at the edge of the retainer ring fixing ring (5).
5. The axial positioning structure of the driving gear according to claim 4, characterized in that the inner diameter of the protection boss of the retainer ring fixing ring (5) is larger than the outer diameter of the snap ring (4), and the height of the protection boss of the retainer ring fixing ring (5) is smaller than the thickness of the snap ring (4).
6. The axial positioning structure of the driving gear as claimed in claim 5, characterized in that the snap ring (4) is annular, and the inner diameter of the snap ring (4) is the same as the outer diameter of the snap ring groove (6).
7. A drive gear axial positioning arrangement as claimed in claim 1, characterized in that the bearing (3) is a deep groove ball bearing.
8. A drive gear axial positioning structure as defined in claim 7, wherein said bearing (3) is fitted in a bearing hole of the transmission case (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222436681.9U CN218236042U (en) | 2022-09-14 | 2022-09-14 | Axial positioning structure of driving gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222436681.9U CN218236042U (en) | 2022-09-14 | 2022-09-14 | Axial positioning structure of driving gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218236042U true CN218236042U (en) | 2023-01-06 |
Family
ID=84664092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222436681.9U Active CN218236042U (en) | 2022-09-14 | 2022-09-14 | Axial positioning structure of driving gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218236042U (en) |
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2022
- 2022-09-14 CN CN202222436681.9U patent/CN218236042U/en active Active
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