CN214743205U - Input gear and hollow shaft installation mechanism of power takeoff - Google Patents
Input gear and hollow shaft installation mechanism of power takeoff Download PDFInfo
- Publication number
- CN214743205U CN214743205U CN202120603897.2U CN202120603897U CN214743205U CN 214743205 U CN214743205 U CN 214743205U CN 202120603897 U CN202120603897 U CN 202120603897U CN 214743205 U CN214743205 U CN 214743205U
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- input gear
- power takeoff
- mounting section
- retainer ring
- hollow shaft
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Abstract
The utility model provides an input gear and hollow shaft installation mechanism of power takeoff solves the input gear and the hollow shaft assembling process of current power takeoff, has the risk that neglected loading spacer arouses the power takeoff trouble to and the lower, higher problem of cost of assembly efficiency. The mechanism comprises a power takeoff hollow shaft, an input gear, a double-row needle bearing and an input gear retainer ring; the power takeoff hollow shaft comprises a positioning section, an input gear mounting section and an input gear retainer ring mounting section, wherein the diameters of the positioning section, the input gear mounting section and the input gear retainer ring mounting section are sequentially reduced along the axial direction; the double-row needle roller bearing and the input gear are sequentially sleeved on the input gear mounting section from inside to outside, one end of the input gear abuts against the positioning section, and one end of the input gear mounting section, which is connected with the positioning section, is provided with an annular limiting bulge for axially limiting one end of the double-row needle roller bearing; the input gear retainer ring is sleeved on the input gear retainer ring mounting section and used for axially limiting the other end of the input gear and the other end of the double-row needle bearing.
Description
Technical Field
The utility model relates to a power takeoff especially relates to an input gear and hollow shaft installation mechanism of power takeoff.
Background
With the increasing market of power takeoff devices, users not only have higher requirements on the service performance of the power takeoff device, but also put forward higher requirements on reducing the cost of the power takeoff device.
At present, an input gear of a power takeoff is connected with a hollow shaft through two needle roller bearings, and the two needle roller bearings need two spacer bushes to be axially positioned in the axial direction of the hollow shaft. In the assembly process of the power takeoff, the spacer sleeves are easy to be neglected to be installed, or the spacer sleeves are easy to be worn and damaged in the working process, so that the risk of the power takeoff fault is caused; the two spacer bushes are respectively a first spacer bush and a second spacer bush, the two needle bearings are respectively a first needle bearing and a second needle bearing, and the first spacer bush, the first needle bearing, the second spacer bush and the second needle bearing need to be sequentially installed along the axial direction of the hollow shaft, so that the assembly efficiency is low, and the cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the input gear and the hollow shaft assembling process of current power takeoff, have neglected to adorn spacer sleeve or spacer sleeve and wear and tear the damage easily in the course of the work, arouse the risk of power takeoff trouble to and the lower, the higher technical problem of cost of assembly efficiency, the utility model provides an input gear and hollow shaft installation mechanism of power takeoff.
In order to achieve the above purpose, the utility model provides a technical scheme is:
an input gear and hollow shaft installation mechanism of a power takeoff is characterized in that: the double-row needle roller bearing comprises a power takeoff hollow shaft, an input gear, a double-row needle roller bearing and an input gear retainer ring;
the power takeoff hollow shaft comprises a positioning section, an input gear mounting section and an input gear retainer ring mounting section, wherein the diameters of the positioning section, the input gear mounting section and the input gear retainer ring mounting section are sequentially reduced along the axial direction;
the double-row needle roller bearing and the input gear are sequentially sleeved on the input gear mounting section from inside to outside, one end of the input gear abuts against the positioning section, and one end of the input gear mounting section, which is connected with the positioning section, is provided with an annular limiting bulge for axially limiting one end of the double-row needle roller bearing;
the input gear retainer ring is sleeved on the input gear retainer ring mounting section and used for axially limiting the other end of the input gear and the other end of the double-row needle roller bearing.
Furthermore, a lubricating oil channel is arranged at the position of the input gear opposite to the middle part of the double-row needle roller bearing along the radial direction;
and two end surfaces of the input gear are provided with lubricating oil grooves.
Furthermore, the lubricating oil channels are uniformly distributed on the circumference.
Furthermore, the lubricating oil channel is 4 that the circumference equipartition.
Compared with the prior art, the utility model has the advantages that:
1. the utility model discloses under the unchangeable prerequisite of other relevant parts except hollow shaft and bearing of guaranteeing the power takeoff, save the use of two spacers, avoided the workshop to neglect the risk that arouses the power takeoff trouble of dress spacer, adopt a biserial bearing simultaneously, compare and currently adopt two bearing, cost reduction.
2. The utility model discloses only need assemble a biserial bearing, the spacing arch of annular on the power takeoff hollow shaft realizes promptly that assembly efficiency is high to biserial bearing's axial spacingly.
Drawings
Fig. 1 is a schematic structural diagram of the input gear and hollow shaft mounting mechanism of the power takeoff of the present invention.
Wherein the reference numbers are as follows:
1-power takeoff hollow shaft, 11-positioning section, 12-input gear installation section, 121-annular limiting bulge, 13-input gear retainer ring installation section, 2-input gear, 21-lubricating oil channel, 3-double-row needle roller bearing and 4-input gear retainer ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, the input gear and hollow shaft mounting mechanism of the power takeoff comprises a power takeoff hollow shaft 1, an input gear 2, a double-row needle bearing 3 and an input gear retainer ring 4; the power takeoff hollow shaft 1 comprises a positioning section 11, an input gear mounting section 12 and an input gear retainer ring mounting section 13, wherein the diameters of the positioning section, the input gear mounting section and the input gear retainer ring mounting section are sequentially reduced from left to right along the axial direction; the double-row needle roller bearing 3 and the input gear 2 are sequentially sleeved on the input gear installation section 12 from inside to outside, one end of the input gear 2 is abutted against the positioning section 11, and one end of the input gear installation section 12, which is connected with the positioning section 11, is provided with an annular limiting bulge 121 for axially limiting one end of the double-row needle roller bearing 3; the input gear retainer ring 4 is sleeved on the input gear retainer ring mounting section 13 and used for axial limiting of the other end of the input gear 2 and the other end of the double-row needle roller bearing 3.
In the invention, two end faces of the input gear 2 are provided with lubricating oil grooves, and the axial direction of the input gear is provided with 4 lubricating oil channels 21 relative to the middle position of the double-row needle roller bearing 3 along the circumferential direction, thereby completing the lubrication of the double-row needle roller bearing 3.
This embodiment installation mechanism adopts double row bearing 3 to realize being connected between input gear 2 and power takeoff hollow shaft 1, is equipped with the spacing arch 121 of annular simultaneously on power takeoff hollow shaft 1, realizes double row bearing 3's location, has saved the use of spacer, avoids the workshop to neglect to adorn the risk that the spacer arouses the power takeoff trouble, only needs a double row bearing 3 of assembly simultaneously, improves assembly efficiency. In addition, this embodiment adopts a biserial bearing 3, compares and has adopted two bearing now, the cost is reduced.
The installation mechanism of the embodiment can be arranged on the existing power takeoff only by arranging the annular limiting bulge 121 on the hollow shaft, and other structures of the power takeoff do not need to be changed.
The above description is only for the preferred embodiment of the present invention, and the technical solution of the present invention is not limited thereto, and any deformation made by those skilled in the art on the basis of the main technical concept of the present invention belongs to the technical scope to be protected by the present invention.
Claims (4)
1. The utility model provides an input gear and hollow shaft installation mechanism of power takeoff which characterized in that: comprises a power takeoff hollow shaft (1), an input gear (2), a double-row needle bearing (3) and an input gear retainer ring (4);
the power takeoff hollow shaft (1) comprises a positioning section (11), an input gear mounting section (12) and an input gear retainer ring mounting section (13), wherein the diameters of the positioning section, the input gear mounting section and the input gear retainer ring mounting section are sequentially reduced along the axial direction;
the double-row needle roller bearing (3) and the input gear (2) are sequentially sleeved on the input gear mounting section (12) from inside to outside, one end of the input gear (2) is abutted against the positioning section (11), and one end of the input gear mounting section (12) connected with the positioning section (11) is provided with an annular limiting bulge (121) for axially limiting one end of the double-row needle roller bearing (3);
the input gear retainer ring (4) is sleeved on the input gear retainer ring mounting section (13) and used for axial limiting of the other end of the input gear (2) and the other end of the double-row needle roller bearing (3).
2. The input gear and quill shaft mounting mechanism of the power take-off of claim 1, wherein: a lubricating oil channel (21) is arranged at the opposite position of the input gear (2) and the middle part of the double-row needle roller bearing (3) along the radial direction;
and two end faces of the input gear (2) are provided with lubricating oil grooves.
3. The input gear and quill shaft mounting mechanism of the power take-off of claim 2, wherein: the lubricating oil channels (21) are uniformly distributed on the circumference.
4. The input gear and quill shaft mounting mechanism of the power take-off of claim 3, wherein: the lubricating oil channels (21) are 4 in circumference uniform distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120603897.2U CN214743205U (en) | 2021-03-24 | 2021-03-24 | Input gear and hollow shaft installation mechanism of power takeoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120603897.2U CN214743205U (en) | 2021-03-24 | 2021-03-24 | Input gear and hollow shaft installation mechanism of power takeoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214743205U true CN214743205U (en) | 2021-11-16 |
Family
ID=78596786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120603897.2U Active CN214743205U (en) | 2021-03-24 | 2021-03-24 | Input gear and hollow shaft installation mechanism of power takeoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214743205U (en) |
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2021
- 2021-03-24 CN CN202120603897.2U patent/CN214743205U/en active Active
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