CN214146507U - Connecting structure of power takeoff input gear and transmission auxiliary box lengthened intermediate shaft - Google Patents
Connecting structure of power takeoff input gear and transmission auxiliary box lengthened intermediate shaft Download PDFInfo
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- CN214146507U CN214146507U CN202022542442.2U CN202022542442U CN214146507U CN 214146507 U CN214146507 U CN 214146507U CN 202022542442 U CN202022542442 U CN 202022542442U CN 214146507 U CN214146507 U CN 214146507U
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- input gear
- hollow shaft
- auxiliary box
- power takeoff
- hole
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Abstract
The utility model provides a connecting structure of an input gear of a power takeoff and an elongated intermediate shaft of a transmission auxiliary box, which comprises the elongated intermediate shaft of the transmission auxiliary box, a hollow shaft, the input gear of the power takeoff, an input gear retainer ring and a stud bolt; the transmission auxiliary box lengthened intermediate shaft is inserted into the hollow shaft, and the power takeoff input gear is axially pressed on the outer side end of the shaft body of the hollow shaft; the input gear retainer ring is axially pressed on the end surfaces of the hollow shaft and the input gear of the power takeoff, one side of the input gear retainer ring facing the direction of the hollow shaft is inserted into the hollow shaft, and a cylindrical pin is radially arranged between the insertion end of the input gear retainer ring and the inner side wall of the hollow shaft; the lengthened middle shaft of the auxiliary gearbox is provided with a bolt hole towards the insertion end of the input gear retainer ring, and the input gear retainer ring is provided with a connecting through hole; this simple structure, convenient to detach, it is effectual fixed with bolt and derailleur auxiliary box extension jackshaft, realize power takeoff input gear and the axial and the radial positioning of derailleur auxiliary box extension jackshaft.
Description
Technical Field
The utility model relates to the field of machine-building, specifically be a connection structure of power takeoff input gear and derailleur auxiliary tank extension jackshaft.
Background
The structure of connecting the input gear of the power takeoff and the lengthened middle shaft of the auxiliary box of the transmission at present is shown in figure 1, through the matching of the toothed bolt of the hexagonal flange surface bearing surface and the threaded hole of the lengthened middle shaft of the auxiliary box of the transmission, the axial positioning between the relevant parts of the power takeoff is completed by pressing the input gear through the input gear retainer ring in the axial direction, but because the bolt is a single-head bolt, the middle shaft and the power takeoff can be separated only after the whole bolt is disassembled, the disassembly is inconvenient, although the middle shaft is connected with the relevant parts of the power takeoff through the toothed bolt of the hexagonal flange surface bearing surface, the toothed bolt of the hexagonal flange surface bearing surface cannot be fixed on the middle shaft, so that the relative movement between the middle shaft and the power takeoff is difficult to avoid, and the damage to the toothed bolt of the hexagonal flange surface bearing surface is large; with the increasing market of power takeoff devices, there is a higher need for performance, maintenance and the like of the power takeoff device. In the after-market, the bolts for connecting the input gear of the power takeoff and the lengthened middle shaft of the auxiliary box of the transmission are loosened or broken, so that the faults of difficult gear shifting, abnormal sound and the like of the power takeoff are caused.
SUMMERY OF THE UTILITY MODEL
The bolt to connecting power takeoff input gear and derailleur auxiliary box extension jackshaft among the prior art can't realize fixedly with derailleur auxiliary box extension jackshaft, and long-time the use exists the not hard up or cracked trouble of bolt, the utility model provides a connection structure of power takeoff input gear and derailleur auxiliary box extension jackshaft, this simple structure, convenient to detach, effectual fixed with bolt and derailleur auxiliary box extension jackshaft, realize the axial and the radial positioning of power takeoff input gear and derailleur auxiliary box extension jackshaft.
The utility model discloses a realize through following technical scheme:
a connection structure of a power takeoff input gear and a transmission auxiliary box lengthened intermediate shaft comprises the transmission auxiliary box lengthened intermediate shaft, a hollow shaft, the power takeoff input gear, an input gear retainer ring and a stud bolt;
the transmission auxiliary box lengthened intermediate shaft is inserted into the hollow shaft, and the power takeoff input gear is axially pressed on the outer side end of the shaft body of the hollow shaft; the input gear retainer ring is axially pressed on the end surfaces of the hollow shaft and the input gear of the power takeoff, one side of the input gear retainer ring facing the direction of the hollow shaft is inserted into the hollow shaft, and a cylindrical pin is radially arranged between the insertion end of the input gear retainer ring and the inner side wall of the hollow shaft; the lengthened middle shaft of the auxiliary gearbox is provided with a bolt hole towards the insertion end of the input gear retainer ring, and the input gear retainer ring is provided with a connecting through hole; the bolt hole and the connecting through hole are coaxially arranged; the stud is in threaded connection with the bolt hole through the connecting through hole, and a locking filling material is coated on the bolt facing one end of the bolt hole and used for fixing the stud on the lengthened intermediate shaft of the auxiliary box of the transmission; the stud is provided with a nut on the bolt facing one end of the input gear retainer ring.
Preferably, the outer wall of the lengthened intermediate shaft of the auxiliary gearbox is provided with an external spline; an internal spline is arranged in the hollow shaft, and the lengthened intermediate shaft of the auxiliary gearbox is connected with the internal spline of the hollow shaft through the external spline and is positioned in the radial direction.
Preferably, the input gear retainer ring comprises a pressing disc and a connecting column; the connecting column is integrally arranged on the pressing end face of the pressing disc, the pressing disc and the connecting column are coaxially arranged, and the pressing disc and the connecting column are provided with connecting through holes; the compressing disc axially compresses the hollow shaft and the input gear of the power takeoff, and the connecting column is inserted into the hollow shaft to form clearance fit.
Furthermore, the side end of the connecting column is provided with a positioning pin hole, and a cylindrical pin is inserted into the positioning pin hole to position the relative position of the hollow shaft and the connecting column.
Furthermore, a nut hole is formed in the pressing disc, the nut hole and the connecting through hole are coaxially arranged, and the aperture of the nut hole is larger than that of the connecting through hole.
Preferably, the locking filling material is locking glue.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a connecting structure of an input gear of a power takeoff and an elongated intermediate shaft of a transmission auxiliary box, the input gear retainer ring is connected with the lengthened middle shaft of the transmission auxiliary box through the stud bolts to realize axial positioning, and the bolt facing one end of the lengthened middle shaft of the transmission auxiliary box is coated with a locking filling material, so that the reliability of threaded connection is improved, the bolt is prevented from loosening or breaking due to long-time operation, the stud bolt is provided with a nut facing one end of the input gear retainer ring, through dismantling the nut, with power takeoff input gear and derailleur auxiliary box extension jackshaft separation, convenient to detach is equipped with the cylindric lock between hollow shaft and the input gear retaining ring, guarantees the radial positioning of power takeoff input gear and derailleur auxiliary box extension jackshaft, avoids taking place relative motion between power takeoff input gear and the derailleur auxiliary box extension jackshaft.
Furthermore, the transmission auxiliary box lengthened intermediate shaft is connected with the inner spline of the hollow shaft through the outer spline and is positioned in the radial direction, and the connectivity of the transmission auxiliary box lengthened intermediate shaft and the hollow shaft is improved.
Furthermore, the input gear retainer ring comprises a pressing disc and a connecting column, the pressing disc axially presses the hollow shaft and the power takeoff input gear, and axial positioning is provided for the hollow shaft and the power takeoff input gear; the connecting column is inserted into the hollow shaft to increase the stability of the input gear retainer ring on the hollow shaft.
Furthermore, a positioning pin hole is formed in the side end of the connecting column, and a cylindrical pin is inserted into the positioning pin hole to position the hollow shaft and the connecting column relative to each other, so that radial positioning is provided for the input gear of the power takeoff.
Furthermore, the pressing disc is provided with a nut hole, so that the pressing disc is convenient for threaded installation and saves axial space.
Furthermore, the locking filling material adopts locking glue which can fill small gaps between the connecting threads, so that the tightness of the stud bolt in the bolt hole is improved, the reliability of threaded connection is improved, and the bolt is prevented from loosening or breaking in the bolt hole.
Drawings
FIG. 1 is a schematic view of a prior art connection of a power take-off input gear to an elongated countershaft of a transmission sub-housing;
fig. 2 is a schematic view of a connection structure between an input gear of the power takeoff and an elongated intermediate shaft of a transmission auxiliary box in the embodiment of the present invention.
In the figure: 1-a transmission auxiliary box lengthened intermediate shaft; 2-a hollow shaft; 3-power takeoff input gear; 4-input gear retainer ring; 5-stud bolt; 6-a nut; 7-cylindrical pins; 8-locking the filling material; 41-a pressing disc; 42-connecting column.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings, which are provided for purposes of illustration and not limitation.
Examples
The utility model provides a connecting structure of a power takeoff input gear and a transmission auxiliary box lengthened intermediate shaft, which comprises a transmission auxiliary box lengthened intermediate shaft 1, a hollow shaft 2, a power takeoff input gear 3, an input gear retainer ring 4 and a stud bolt 5, as shown in figure 2; the transmission auxiliary box lengthened intermediate shaft 1 is inserted into the hollow shaft 2, and the power takeoff input gear 3 is axially pressed on the outer side end of the shaft body of the hollow shaft 2; an input gear retainer ring 4 is axially pressed on the end surfaces of the hollow shaft 2 and the power takeoff input gear 3, one side of the input gear retainer ring 4 facing the direction of the hollow shaft 2 is inserted into the hollow shaft 2, and a cylindrical pin 7 is radially arranged between the insertion end of the input gear retainer ring 4 and the inner side wall of the hollow shaft 2; an insertion end of the transmission auxiliary box lengthened intermediate shaft 1 facing the input gear retainer ring 4 is provided with a bolt hole, and the input gear retainer ring 4 is provided with a connecting through hole; the bolt hole and the connecting through hole are coaxially arranged; the stud bolt 5 is in threaded connection with the bolt hole through the connecting through hole, and a locking filling material 8 is coated on the bolt facing one end of the bolt hole and used for fixing the stud bolt 5 on the transmission auxiliary box lengthened intermediate shaft 1; the stud bolt 5 is provided with a nut 6 on the bolt facing one end of the input gear retainer 4.
The outer wall of the transmission auxiliary box lengthened intermediate shaft 1 is provided with an external spline; an internal spline is arranged in the hollow shaft 2, and the auxiliary gearbox lengthened intermediate shaft 1 is connected with the internal spline of the hollow shaft 2 through an external spline and is positioned radially, so that the connectivity of the auxiliary gearbox lengthened intermediate shaft 1 and the hollow shaft 2 is improved.
The input gear retainer ring 4 comprises a pressing disc 41 and a connecting column 42; the connecting column 42 is integrally arranged on the pressing end face of the pressing disc 41, the pressing disc 41 and the connecting column 42 are coaxially arranged, and the pressing disc 41 and the connecting column 42 are provided with connecting through holes; the pressing disc 41 axially presses the hollow shaft 2 and the power takeoff input gear 3 to axially position the hollow shaft 2 and the power takeoff input gear 3; the connecting column 42 is inserted into the hollow shaft 2 to form clearance fit, and the connecting column 42 is inserted into the hollow shaft 2 to increase the stability of the input gear retainer ring 4 on the hollow shaft 2.
A positioning pin hole is formed in the side end of the connecting column 42, and a cylindrical pin 7 is inserted into the positioning pin hole to position the hollow shaft 2 and the connecting column 42 relative to each other, so that radial positioning is provided for an input gear of the power takeoff; the pressing disc 41 is provided with a nut hole, the nut hole and the connecting through hole are coaxially arranged, and the aperture of the nut hole is larger than that of the connecting through hole.
The axial connection of the utility model is changed into a stud bolt 5, and a locking filling material 8 is coated on the bolt facing one end of the bolt hole, wherein the locking filling material 8 adopts locking glue which increases the reliability of the threaded connection; the stud 5 is provided with a nut 6 on the bolt facing one end of the input gear retainer ring 4, the nut 6 adopts a II-type all-metal hexagonal locking nut, and the power takeoff input gear 3 is separated from the transmission auxiliary box lengthened intermediate shaft 1 by dismounting the nut, so that the dismounting is convenient; meanwhile, the elastic cylindrical pin 7 is added to replace the original structure of the hexagon flange surface bearing surface toothed bolt, so that the problem that the hexagon flange surface bearing surface toothed bolt for connecting the power takeoff input gear 3 with the transmission auxiliary box lengthened middle shaft 1 is loosened or broken is perfectly solved, and the faults of difficult gear engagement, abnormal sound and the like of the power takeoff caused by the looseness or the breakage are completely eradicated.
Claims (6)
1. A connection structure of a power takeoff input gear and a transmission auxiliary box lengthened intermediate shaft is characterized by comprising the transmission auxiliary box lengthened intermediate shaft (1), a hollow shaft (2), a power takeoff input gear (3), an input gear retainer ring (4) and a stud bolt (5);
the transmission auxiliary box lengthened intermediate shaft (1) is inserted into the hollow shaft (2) and arranged, and the power takeoff input gear (3) is axially pressed at the outer end of the shaft body of the hollow shaft (2); the input gear retainer ring (4) is axially pressed on the end faces of the hollow shaft (2) and the power takeoff input gear (3), one side, facing the direction of the hollow shaft (2), of the input gear retainer ring (4) is inserted into the hollow shaft (2), and a cylindrical pin (7) is radially arranged between the insertion end of the input gear retainer ring (4) and the inner side wall of the hollow shaft (2); the transmission auxiliary box lengthened middle shaft (1) is provided with a bolt hole towards the insertion end of the input gear retainer ring (4), and the input gear retainer ring (4) is provided with a connecting through hole; the bolt hole and the connecting through hole are coaxially arranged; the double-headed bolt (5) is in threaded connection with the bolt hole through the connecting through hole, and a locking filling material (8) is coated on the bolt facing one end of the bolt hole and used for fixing the double-headed bolt (5) on the transmission auxiliary box lengthened intermediate shaft (1); and a nut (6) is arranged on the bolt of the stud bolt (5) facing one end of the input gear retainer ring (4).
2. A connection structure of a power take-off input gear and a transmission auxiliary box lengthened intermediate shaft according to claim 1, characterized in that the outer wall of the transmission auxiliary box lengthened intermediate shaft (1) is provided with external splines; an internal spline is arranged in the hollow shaft (2), and the auxiliary gearbox lengthened intermediate shaft (1) is connected with the internal spline of the hollow shaft (2) through an external spline and is positioned in the radial direction.
3. A connection arrangement of a power take-off input gear to a variator sub-section extension layshaft according to claim 1, characterised in that the input gear retainer (4) comprises a pressing disc (41) and a connecting column (42); the connecting column (42) is integrally arranged on the pressing end face of the pressing disc (41), the pressing disc (41) and the connecting column (42) are coaxially arranged, and the pressing disc (41) and the connecting column (42) are provided with connecting through holes; the compressing disc (41) compresses the hollow shaft (2) and the power takeoff input gear (3) axially, and the connecting column (42) is inserted into the hollow shaft (2) in clearance fit.
4. A connection structure of an input gear of a power takeoff and an elongated intermediate shaft of a transmission auxiliary box as claimed in claim 3, characterized in that the side end of the connecting column (42) is provided with a positioning pin hole, and a cylindrical pin (7) is inserted into the positioning pin hole to position the relative position of the hollow shaft (2) and the connecting column (42).
5. The connecting structure of the input gear of the power takeoff and the lengthened intermediate shaft of the transmission auxiliary box is characterized in that a nut hole is formed in the pressing disc (41), the nut hole is coaxial with the connecting through hole, and the diameter of the nut hole is larger than that of the connecting through hole.
6. A connection arrangement of a power take-off input gear to an elongated countershaft of a transmission sub-box according to claim 1, characterized in that said locking filling material (8) is a locking glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022542442.2U CN214146507U (en) | 2020-11-05 | 2020-11-05 | Connecting structure of power takeoff input gear and transmission auxiliary box lengthened intermediate shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022542442.2U CN214146507U (en) | 2020-11-05 | 2020-11-05 | Connecting structure of power takeoff input gear and transmission auxiliary box lengthened intermediate shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214146507U true CN214146507U (en) | 2021-09-07 |
Family
ID=77562435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022542442.2U Active CN214146507U (en) | 2020-11-05 | 2020-11-05 | Connecting structure of power takeoff input gear and transmission auxiliary box lengthened intermediate shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214146507U (en) |
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2020
- 2020-11-05 CN CN202022542442.2U patent/CN214146507U/en active Active
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