CN213744806U - Input shaft with positioning outer ring on transmission - Google Patents
Input shaft with positioning outer ring on transmission Download PDFInfo
- Publication number
- CN213744806U CN213744806U CN202022739128.3U CN202022739128U CN213744806U CN 213744806 U CN213744806 U CN 213744806U CN 202022739128 U CN202022739128 U CN 202022739128U CN 213744806 U CN213744806 U CN 213744806U
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- transmission
- input shaft
- sleeve
- positioning
- shaft sleeve
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Abstract
An input shaft with a positioning outer ring on a transmission comprises the transmission and a clutch, the input shaft is inserted in the transmission, a transmission shaft sleeve is hinged in the transmission through a bearing, and a transmission gear is fixed on the transmission shaft sleeve through the insertion sleeve; the input shaft is inserted in the transmission shaft sleeve, a spline is formed on the outer wall of the input shaft on the inner side of the transmission shaft sleeve, a spline groove opposite to the spline is formed on the inner wall of the transmission shaft sleeve, the input shaft and the transmission shaft sleeve are matched through the spline, an annular positioning groove is formed on the inner wall of the transmission shaft sleeve, which is close to the end part of the input shaft, an annular positioning convex ring is formed on the outer wall of the end part of the input shaft, the positioning convex ring is inserted in the positioning groove of the transmission shaft sleeve, and the outer wall of the positioning convex ring is abutted against the bottom surface of the positioning groove. The outer wall of the input shaft is provided with the positioning convex ring, the transmission shaft sleeve on the inner side of the transmission is provided with the positioning groove opposite to the positioning convex ring, the positioning precision is increased to eliminate the influence of large spline fit clearance, and the collision between the input shaft and the transmission shaft sleeve is avoided.
Description
The technical field is as follows:
the utility model relates to a technical field of derailleur, more specifically say and relate to an input shaft of derailleur upper band location outer lane.
Background art:
at present the derailleur is connected with the clutch through the input shaft, it has the axle sleeve to articulate through the bearing in the derailleur, the input shaft is inserted and is established in the axle sleeve and through spline structure and axle sleeve matched connection, its structure is shown as attached figure 1, machine-shaping has spline 41 on the outer wall of input shaft 4, the shaping has spline groove 21 on the inner wall of driving sleeve 2, spline fit clearance between spline groove 21 and spline 41 is big, the positioning effect is relatively poor, and the rotational speed of input shaft 4 is higher, when input shaft 4 runs at a high speed, the tip of input shaft 4 can collide with taking place between the inner wall of axle sleeve 2, the collision can cause input shaft 4 to run unstably, lead to the vibration increase, the noise aggravates.
The utility model has the following contents:
the utility model aims at being not enough to prior art, and provide an input shaft of derailleur upper band location outer lane, it sets up the location bulge loop on the outer wall of input shaft, sets up the constant head tank relative with the location bulge loop on the inboard transmission shaft cover of derailleur, increases positioning accuracy in order to eliminate the big influence in spline fit clearance to guarantee that the input shaft operates unstably, can effectively reduce vibration and noise.
An input shaft with a positioning outer ring on a transmission comprises the transmission and a clutch, wherein the transmission and the clutch are connected through the input shaft, the input shaft is inserted in the transmission, a transmission shaft sleeve is hinged in the transmission through a bearing, and a transmission gear is fixed on the transmission shaft sleeve through an insertion sleeve; the input shaft is inserted in the transmission shaft sleeve, a spline is formed on the outer wall of the input shaft on the inner side of the transmission shaft sleeve, a spline groove opposite to the spline is formed on the inner wall of the transmission shaft sleeve, the input shaft and the transmission shaft sleeve are matched through the spline, an annular positioning groove is formed on the inner wall of the transmission shaft sleeve, which is close to the end part of the input shaft, an annular positioning convex ring is formed on the outer wall of the end part of the input shaft, the positioning convex ring is inserted in the positioning groove of the transmission shaft sleeve, and the outer wall of the positioning convex ring abuts against the bottom surface of the positioning groove.
Preferably, the positioning groove in the driving shaft sleeve penetrates through the side end face of the driving shaft sleeve, and the length of the positioning groove is larger than that of the positioning convex ring on the input shaft.
Preferably, an annular clamping groove is formed in the bottom surface of the positioning groove in the transmission shaft sleeve, a clamping spring is inserted in the clamping groove, and the clamping spring abuts against the side end face of the input shaft.
Preferably, the spline grooves on the transmission shaft sleeve are positioned in the middle of the transmission shaft sleeve, the length of the spline grooves is smaller than that of the transmission shaft sleeve, and bearings are fixed on the outer walls of the two ends of the transmission shaft sleeve through inserting sleeves.
Preferably, a sealing end cover is fixedly connected to the transmission at the end part of the input shaft.
The beneficial effects of the utility model reside in that:
the input shaft of this design sets up the location bulge loop on its outer wall, sets up the constant head tank relative with the location bulge loop on the inboard transmission shaft cover of derailleur, increases positioning accuracy in order to eliminate the big influence in spline fit clearance, avoids bumping between input shaft and the transmission shaft cover to guarantee that the input shaft operates unstably, can effectively reduce vibration and noise.
Description of the drawings:
FIG. 1 is a schematic diagram of a prior art transmission with a connection structure between an input shaft and the transmission;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.
In the figure: 1. a transmission; 2. a driving shaft sleeve; 21. a spline groove; 22. positioning a groove; 23. a card slot; 3. a transmission gear; 4. an input shaft; 41. a spline; 42. positioning the convex ring; 5. and a clamp spring.
The specific implementation mode is as follows:
example (b): as shown in fig. 2 to 3, the input shaft with the positioning outer ring on the transmission comprises a transmission 1 and a clutch, wherein the transmission 1 is connected with the clutch through an input shaft 4, the input shaft 4 is inserted into the transmission 1, a transmission shaft sleeve 2 is hinged in the transmission 1 through a bearing, and a transmission gear 3 is fixed on the transmission shaft sleeve 2 through an insertion sleeve; the input shaft 4 is inserted in the transmission shaft sleeve 2, a spline 41 is formed on the outer wall of the input shaft 4 on the inner side of the transmission shaft sleeve 2, a spline groove 21 opposite to the spline 41 is formed on the inner wall of the transmission shaft sleeve 2, the input shaft 4 is matched with the transmission shaft sleeve 2 through the spline, an annular positioning groove 22 is formed on the inner wall of the transmission shaft sleeve 2 close to the end part of the input shaft 4, an annular positioning convex ring 42 is formed on the outer wall of the end part of the input shaft 4, the positioning convex ring 42 is inserted in the positioning groove 22 of the transmission shaft sleeve 2, and the outer wall of the positioning convex ring 42 is abutted against the bottom surface of the positioning groove 22.
Preferably, the positioning groove 22 on the driving sleeve 2 penetrates through the side end face of the driving sleeve 2, and the length of the positioning groove 22 is greater than that of the positioning convex ring 42 on the input shaft 4.
Preferably, an annular clamping groove 23 is formed in the bottom surface of the positioning groove 22 in the transmission shaft sleeve 2, a clamping spring 5 is inserted into the clamping groove 23, and the clamping spring 5 abuts against the side end surface of the input shaft 4.
Preferably, the spline grooves 21 on the driving shaft sleeve 2 are located in the middle of the driving shaft sleeve 2, the length of the spline grooves 21 is smaller than that of the driving shaft sleeve 2, and bearings are fixed on the outer walls of the two ends of the driving shaft sleeve 2 through inserting sleeves.
Preferably, a sealing end cover is fixedly connected to the transmission 1 at the end of the input shaft 4.
The working principle is as follows: the utility model relates to an input shaft with a positioning outer ring on a transmission, which is characterized in that a positioning convex ring 42 is additionally arranged on the outer wall of the input shaft, a positioning groove 22 is arranged on a transmission shaft sleeve 2, and the positioning convex ring 42 is inserted in the positioning groove 22 and is propped against the bottom surface of the positioning groove 22; the positioning precision can be increased to eliminate the influence of the spline fit clearance, and the collision between the input shaft and the transmission shaft sleeve is avoided, so that the input shaft is ensured to operate unstably, and the vibration and the noise can be effectively reduced.
The examples are intended to be illustrative, but not limiting, of the invention. The embodiments can be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the present invention should be determined by the appended claims.
Claims (5)
1. An input shaft with a positioning outer ring on a transmission comprises the transmission (1) and a clutch, wherein the transmission (1) is connected with the clutch through an input shaft (4), the input shaft (4) is inserted in the transmission (1), a transmission shaft sleeve (2) is hinged in the transmission (1) through a bearing, and a transmission gear (3) is fixed on the transmission shaft sleeve (2) through an insertion sleeve; input shaft (4) insert and establish in driving sleeve (2), the shaping has spline (41) on the inboard input shaft (4) outer wall of driving sleeve (2), the shaping has spline groove (21) relative with spline (41) on the inner wall of driving sleeve (2), through spline fit, its characterized in that between input shaft (4) and driving sleeve (2): the inner wall of the end part, close to the input shaft (4), of the transmission shaft sleeve (2) is formed with an annular positioning groove (22), the outer wall of the end part of the input shaft (4) is formed with an annular positioning convex ring (42), the positioning convex ring (42) is inserted into the positioning groove (22) of the transmission shaft sleeve (2), and the outer wall of the positioning convex ring (42) abuts against the bottom surface of the positioning groove (22).
2. The input shaft with the positioning outer ring of the transmission as set forth in claim 1, wherein: the positioning groove (22) on the driving shaft sleeve (2) penetrates through the side end face of the driving shaft sleeve (2), and the length of the positioning groove (22) is larger than that of the positioning convex ring (42) on the input shaft (4).
3. The input shaft with the positioning outer ring of the transmission as set forth in claim 2, wherein: an annular clamping groove (23) is formed in the bottom surface of the positioning groove (22) in the transmission shaft sleeve (2), a clamping spring (5) is inserted in the clamping groove (23), and the clamping spring (5) abuts against the side end face of the input shaft (4).
4. The input shaft with the positioning outer ring of the transmission as set forth in claim 1, wherein: spline grooves (21) on the driving shaft sleeve (2) are located in the middle of the driving shaft sleeve (2), the length of the spline grooves (21) is smaller than that of the driving shaft sleeve (2), and bearings are fixed on the outer walls of the two ends of the driving shaft sleeve (2) in an inserted and sleeved mode.
5. The input shaft with the positioning outer ring of the transmission as set forth in claim 1, wherein: and a sealing end cover is fixedly connected to the transmission (1) at the end part of the input shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022739128.3U CN213744806U (en) | 2020-11-24 | 2020-11-24 | Input shaft with positioning outer ring on transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022739128.3U CN213744806U (en) | 2020-11-24 | 2020-11-24 | Input shaft with positioning outer ring on transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213744806U true CN213744806U (en) | 2021-07-20 |
Family
ID=76829127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022739128.3U Active CN213744806U (en) | 2020-11-24 | 2020-11-24 | Input shaft with positioning outer ring on transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213744806U (en) |
-
2020
- 2020-11-24 CN CN202022739128.3U patent/CN213744806U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |