CN208749965U - A kind of driving tooth retaining mechanism of rear axle gearbox - Google Patents
A kind of driving tooth retaining mechanism of rear axle gearbox Download PDFInfo
- Publication number
- CN208749965U CN208749965U CN201821474531.4U CN201821474531U CN208749965U CN 208749965 U CN208749965 U CN 208749965U CN 201821474531 U CN201821474531 U CN 201821474531U CN 208749965 U CN208749965 U CN 208749965U
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- CN
- China
- Prior art keywords
- rear axle
- bolt
- bearing
- shaft
- gearbox
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of driving tooth retaining mechanism of rear axle gearbox, belongs to beach buggy key components and parts technical field.It solves the problems, such as that bolt is broken by shearing force time long easy loosen later.The driving tooth retaining mechanism of this rear axle gearbox, the gearbox includes Gearbox and the rear axle driving gear that is arranged in Gearbox, one end tooth connection wheel portion of shaft, the other end of shaft is provided with mounting base, mounting hole and step are provided in mounting base, the connection of the upper end of mounting hole and shaft, step is arranged on the upper surface of mounting hole, gasket is provided on step, the upper surface of shaft is equipped with to recessed internal thread hole, the bolt of connection internal thread hole is provided in mounting base, the screw rod of bolt passes through gasket and internal thread hole, the nut of bolt is compressed with gasket, it is located at below bolt on the main diameter of rear axle driving gear and is provided with bushing, it is located at screw jacket at bolt and is equipped with external splines, it is excessively to cooperate between external splines and mounting base.
Description
Technical field
The utility model belongs to beach buggy key components and parts technical field, is related to a kind of rear axle gearbox, in particular to one
The driving tooth retaining mechanism of kind rear axle gearbox.
Background technique
Current beach buggy industry inputs the locking of driving gear using bolt lock in various beach buggy Gearbox designs
Tightly, the shock and vibration stress of gearbox is all directly transmitted on clamping screw by driving gear, causes clamping screw easily broken
It splits, bolt fracture rear drive gear loosens, and gear beats tooth, so that entire gearbox be caused to scrap, beach buggy speed change is fast at this stage
Device driving gear retaining mechanism is in vehicle in the case where extreme condition or reversing suddenly, and driving gear clamping screw is by very big
Impact force, the strength range beyond bolt leads to bolt fracture, and after bolt fracture, driving gear loosens, and causes principal and subordinate dynamic
Gear plays tooth, gear rupture.
Previous improved method is that driving gear external screw thread is changed to internal screw thread, the application number declared such as our company in 2016
By a kind of connection structure of the 201620101428.X rear axle gearbox announced, connection internal thread hole is provided in mounting base
The screw rod of bolt, bolt passes through gasket and internal thread hole, and nut and the gasket of bolt compress；Pass through matching for internal thread hole and bolt
The intensity that connection improves structure is closed, but finds that power suffered by driving gear can be all transmitted in the structure after practice
On bolt, bolt is easy to loosen fracture after having been grown by the shearing force time, can not solve root problem.
Summary of the invention
The purpose of this utility model is that it is more stable to provide a kind of structure for the above-mentioned problems in the prior art
And it is possible to prevente effectively from the rear axle gearbox of bolt fracture driving tooth retaining mechanism.
The purpose of this utility model can be realized by the following technical scheme: a kind of driving tooth locking machine of rear axle gearbox
Structure, the gearbox include Gearbox and the rear axle driving gear that is arranged in Gearbox, the rear axle driving gear
Including gear part and shaft, one end tooth connection wheel portion of shaft, the other end of the shaft is provided with mounting base, described
Mounting hole and step, the upper end connection of the mounting hole and shaft are provided in mounting base, the step setting is being installed
On the upper surface in hole, gasket is provided on the step, the upper surface of the shaft is equipped with to recessed internal thread hole, institute
State the bolt that connection internal thread hole is provided in mounting base, the screw rod of bolt passes through gasket and internal thread hole, the nut of bolt with
Gasket compresses, which is characterized in that is located at below bolt on the main diameter of the rear axle driving gear and is provided with bushing, the bolt
Place is located at screw jacket and is equipped with external splines, is excessively to cooperate between the external splines and mounting base.
The technical effect of this rear axle gearbox driving tooth retaining mechanism are as follows: increase by one on the main diameter of rear axle driving gear
Rear axle driving gear and shaft are first locked on cabinet with bushing by bushing, then rear axle driving gear and mounting base are locked,
The power that is subject to of rear axle driving gear can be for delivery on bushing in this way, and substantially reduces the shearing force that bolt is subject to simultaneously, from
And bolt fracture is effectively avoided, it further, will excessively cooperate between external splines and mounting base, reduce the string of external splines
It is dynamic, it avoids bolt and is loosened by vibration.
In a kind of driving tooth retaining mechanism of above-mentioned rear axle gearbox, bearing one is provided in the Gearbox
With bearing two, the shaft is socketed in bearing one and bearing two, the upper surface of the bearing one and the lower end of the bushing
Face abuts, and the lower end surface of the bearing two is abutted with the upper surface of gear part.
The power that rear axle driving gear is subject to can be transmitted on cabinet for delivery on bushing eventually by bearing one.
In a kind of driving tooth retaining mechanism of above-mentioned rear axle gearbox, the upper end of the bearing two is successively set upwardly
It is equipped with spacer, adjustment spacer gasket and adjustment spacer, the upper surface of the adjustment spacer is abutted with the lower end surface of bearing one, institute
The lower end surface for stating spacer is abutted with the upper surface of bearing two.
In a kind of driving tooth retaining mechanism of above-mentioned rear axle gearbox, the upper surface of the gear part is provided with and axis
Hold the cog spacers that two lower end surface abuts.
In a kind of driving tooth retaining mechanism of above-mentioned rear axle gearbox, it is provided with oil sealing on the Gearbox,
The oil sealing is set on the outer peripheral surface of mounting base.
In a kind of driving tooth retaining mechanism of above-mentioned rear axle gearbox, the bolt is hexagon flange bolt.
Compared with prior art, the driving tooth retaining mechanism of this rear axle gearbox is by setting bushing for transmitting driving tooth
It takes turns the power being subject to and reduces the shearing force that bolt is subject to, and make it have knot in the vibration that bolt coat sets external splines reduction bolt
The advantage that structure is more stable and bolt is not easy to break.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this rear axle gearbox.
Fig. 2 is the schematic enlarged-scale view in Fig. 1 at A.
In figure, 1, Gearbox；2, rear axle driving gear；21, gear part；22, shaft；221, internal thread hole；3,
Mounting base；31, mounting hole；32, step；4, gasket；5, bolt；51, screw rod；52, nut；6, bushing；7, external splines；8, bearing
One；9, bearing two；10, spacer；11, spacer gasket is adjusted；12, spacer is adjusted；13, cog spacers；14, oil sealing.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1 and Figure 2, the driving tooth retaining mechanism of this rear axle gearbox, the gearbox include 1 He of Gearbox
Rear axle driving gear 2 in Gearbox 1 is set, and rear axle driving gear 2 includes gear part 21 and shaft 22, shaft
22 one end tooth connection wheel portion 21, the other end of shaft 22 are provided with mounting base 3, and 31 He of mounting hole is provided in mounting base 3
Step 32, mounting hole 31 are connect with the upper end of shaft 22, and step 32 is arranged on the upper surface of mounting hole 31, on step 32
It is provided with gasket 4, the upper surface of shaft 22 is equipped with to recessed internal thread hole 221, is provided with spiral shell in connection in mounting base 3
The screw rod 51 of the bolt 5 of pit 221, bolt 5 passes through gasket 4 and internal thread hole 221, and nut 52 and the gasket 4 of bolt 5 compress,
It is located at below bolt 5 on the main diameter of rear axle driving gear 2 and is provided with bushing 6, is located at outside screw rod 51 at bolt 5 and is arranged with external splines
7, it is excessively to cooperate between external splines 7 and mounting base 3.
It further describes in detail, bearing 1 and bearing 29 is provided in Gearbox 1, shaft 22 is socketed on bearing 1
In bearing 29, the upper surface of bearing 1 is abutted with the lower end surface of bushing 6, and the lower end surface of bearing 29 is upper with gear part 21
End face abut, by the setting of bearing 1 and bearing 29 can enable shaft 22 drive gear part 21 rotate when more
Add it is smooth, avoid rotation when shaft 22 occur shaking and being broken, increase service life, what rear axle driving gear 2 was subject to
Power can be transmitted on cabinet for delivery on bushing 6 eventually by bearing 1.
It further describes in detail, the upper end of bearing 29 is disposed with upwardly spacer 10, adjustment spacer gasket 11 and adjustment
The upper surface of spacer 12, adjustment spacer 12 is abutted with the lower end surface of bearing 1, the lower end surface of spacer 10 and the upper end of bearing 29
Face abuts, in this way can be to a support of 29 inner ring of bearing 1 and bearing, while being also one into one to shaft 22
Step protection, increases safety.
It further describes in detail, the upper surface of gear part 21 is provided with the cog spacers 13 abutted with the lower end surface of bearing 29, keeps away
Exempt from gear part 21 to contact with the direct of bearing 29, prevents the abrasion of bearing 29, and be conveniently replaceable using cog spacers 13.
It further describes in detail, oil sealing 14 is provided on Gearbox 1, oil sealing 14 is set on the outer peripheral surface of mounting base 3, keeps away
The lubricating oil exempted from Gearbox 1 is poured out, and is in shaft 22 in the environment of a lubrication, is made to rotate smooth.
This bolt 5 is hexagon flange bolt, and replaceability is strong, and is easily installed.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although Gearbox 1, rear axle driving gear 2, gear part 21, shaft 22, interior spiral shell is used more herein
Pit 221, mounting base 3, mounting hole 31, step 32, gasket 4, bolt 5, screw rod 51, nut 52, bushing 6, external splines 7, bearing
One 8, the terms such as bearing 29, spacer 10, adjustment spacer gasket 11, adjustment spacer 12, cog spacers 13, oil sealing 14, but do not arrange
A possibility that except other terms are used.The use of these items is only for be more convenient to describe and explain the sheet of the utility model
Matter；It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.
Claims (6)
1. a kind of driving tooth retaining mechanism of rear axle gearbox, which includes Gearbox (1) and is arranged in reduction gearbox
Rear axle driving gear (2) in cabinet (1), the rear axle driving gear (2) include gear part (21) and shaft (22), shaft
The other end of one end tooth connection wheel portion (21) in portion (22), the shaft (22) is provided with mounting base (3), the mounting base
(3) mounting hole (31) and step (32) are provided on, the mounting hole (31) connect with the upper end of shaft (22), and described
Rank (32) is arranged on the upper surface of mounting hole (31), is provided with gasket (4) on the step (32), the shaft (22)
Upper surface is equipped with to recessed internal thread hole (221), the interior spiral shell for being provided with connection internal thread hole (221) of the mounting base (3)
The screw rod (51) of bolt (5), bolt (5) passes through gasket (4) and internal thread hole (221), the nut (52) of bolt (5) and gasket (4)
It compresses, which is characterized in that it is located at below bolt (5) on the main diameter of the rear axle driving gear (2) and is provided with bushing (6), it is described
Bolt (5) at be located at screw rod (51) outside be arranged with external splines (7), be excessive between the external splines (7) and mounting base (3)
Cooperation.
2. a kind of driving tooth retaining mechanism of rear axle gearbox according to claim 1, which is characterized in that the deceleration
It is provided with bearing one (8) and bearing two (9) in box body (1), the shaft (22) is socketed on bearing one (8) and bearing two
(9) in, the upper surface of the bearing one (8) is abutted with the lower end surface of the bushing (6), the lower end surface of the bearing two (9) and
The upper surface of gear part (21) abuts.
3. a kind of driving tooth retaining mechanism of rear axle gearbox according to claim 2, which is characterized in that the bearing two
(9) upper end upwardly is disposed with spacer (10), adjustment spacer gasket (11) and adjustment spacer (12), it is described adjustment every
The upper surface of set (12) is abutted with the lower end surface of bearing one (8), the lower end surface of the spacer (10) and the upper surface of bearing two (9)
It abuts.
4. a kind of driving tooth retaining mechanism of rear axle gearbox according to claim 2, which is characterized in that the gear part
(21) upper surface is provided with the cog spacers (13) abutted with the lower end surface of bearing two (9).
5. a kind of driving tooth retaining mechanism of rear axle gearbox according to claim 1, which is characterized in that the deceleration
It is provided on box body (1) oil sealing (14), the oil sealing (14) is set on the outer peripheral surface of mounting base (3).
6. a kind of driving tooth retaining mechanism of rear axle gearbox according to claim 1, which is characterized in that the bolt
It (5) is hexagon flange bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821474531.4U CN208749965U (en) | 2018-09-10 | 2018-09-10 | A kind of driving tooth retaining mechanism of rear axle gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821474531.4U CN208749965U (en) | 2018-09-10 | 2018-09-10 | A kind of driving tooth retaining mechanism of rear axle gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208749965U true CN208749965U (en) | 2019-04-16 |
Family
ID=66083950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821474531.4U Expired - Fee Related CN208749965U (en) | 2018-09-10 | 2018-09-10 | A kind of driving tooth retaining mechanism of rear axle gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208749965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173891A (en) * | 2020-01-10 | 2020-05-19 | 重庆齿轮箱有限责任公司 | Bevel gear box and box body thereof and mounting and adjusting method of bevel gear box |
-
2018
- 2018-09-10 CN CN201821474531.4U patent/CN208749965U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173891A (en) * | 2020-01-10 | 2020-05-19 | 重庆齿轮箱有限责任公司 | Bevel gear box and box body thereof and mounting and adjusting method of bevel gear box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20210910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |