CN101746265B - Rear power takeoff for speed changing box - Google Patents
Rear power takeoff for speed changing box Download PDFInfo
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- CN101746265B CN101746265B CN2009102731354A CN200910273135A CN101746265B CN 101746265 B CN101746265 B CN 101746265B CN 2009102731354 A CN2009102731354 A CN 2009102731354A CN 200910273135 A CN200910273135 A CN 200910273135A CN 101746265 B CN101746265 B CN 101746265B
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- output shaft
- power takeoff
- bearing
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- power take
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Abstract
The invention discloses a rear power takeoff for a speed changing box, which comprises a power takeoff gear shaft, wherein one end of the power takeoff gear shaft is provided with a spline section and an output shaft being in coaxial on-off with the power takeoff gear shaft, a shaft circle at one end of the output shaft is provided with a spline section corresponding to the spline section on the power takeoff gear shaft, the spline section of the output shaft is connected with a clutch spline sleeve which is connected with a clutch drive device, and the other end of the output shaft is provided with an output connecting spline hole. The rear power takeoff also comprises a front shell and a rear shell which are connected mutually, the shaft end of the power takeoff gear shaft is provided with a connecting supporting hole, the end part of the output shaft is supported in the connecting supporting hole at the shaft end of the power takeoff gear shaft through a bearing, and the other end of the output shaft is supported between the front shell and the rear shell. The rear power takeoff has compact axial structure and small volume, and can be widely applied to medium and heavy speed changing boxes.
Description
Technical field
The invention belongs to power takeoff, be specifically related to a kind of and change speed gear box bonded assembly rear power takeoff for speed changing box.
Background technology
Rear power takeoff for speed changing box is installed in the rear side of change speed gear box at present; The supporting construction of output shaft is near the overhung mounting that two backup bearings are set in the mouth housing; Output shaft does not support near the drive axle head, and this structure causes output shaft discontinuity in the power taking process; Housing adopts unitized housing simultaneously, and this just requires output shaft long, to guarantee that output shaft is connected with the installation of housing.Therefore above-mentioned rear power takeoff for speed changing box structural volume is bigger, and the texture ratio of the clutch driving unit in the housing is bigger, increases cost of parts, is not easy to other location of powerplant of special-purpose automobile chassis; The overhung mounting structure of output shaft causes the clutch section of output shaft easy to wear simultaneously, and after the last time use, coaxial being difficult to of output shaft and power take-off gear axle guarantees.
Summary of the invention
The object of the present invention is to provide a kind of rear power takeoff for speed changing box of compact conformation, to solve the art problem.
Technical scheme of the present invention is: rear power takeoff for speed changing box; It comprises the power take-off gear axle, and an end of power take-off gear axle is provided with spline segment, with the output shaft of the coaxial clutch of power take-off gear axle; It is corresponding with the spline segment on the power take-off gear axle that the one end axle circle of output shaft is provided with spline segment; The spline segment of output shaft connects the clutch spline housing, and the clutch spline housing connects clutch driving unit, and the other end of output shaft is provided with output and connects splined hole; It also comprises interconnective front case and rear housing; The axle head of power take-off gear axle is provided with the connection supported hole, and in the connection supported hole of power take-off gear axle axle head, the other end of output shaft is supported between front case and the rear housing through bearings in the end of output shaft.
Said power take-off gear axle has five sections formations at least: the supporting section of end, power take-off gear section, shaft part, bearings section and spline segment.
Said output shaft has three sections formations at least: the axle head with the power take-off gear axle of end is connected supported hole and connects the supporting section that supports, clutch spline housing bonded assembly spline segment and supporting section.
Be provided with the bearing limited ring groove in the said rear housing, the front case inwall is provided with the bearing limited ring groove, and the bearing limited ring groove in the rear housing and the bearing limited ring groove of front case inwall constitute output shaft backup bearing position-limited trough.
The supporting section of output shaft is provided with backup bearing, in the output shaft backup bearing position-limited trough that the bearing limited ring groove of bearing limited ring groove and the front case inwall of the outer ring of backup bearing in rear housing constitutes.
Said rear housing inwall is provided with the piston hole of clutch driving unit, and the front case inwall is provided with clutch driving unit antagonistic force hole, and piston hole and antagonistic force hole are coaxial.
Connect first backup bearing on the supporting section of the end of said power take-off gear axle, connect second backup bearing on the bearings section, the end face of second backup bearing contacts with the confined planes of the guide and limit axle sleeve that the front case end face is established.
Among the present invention the power takeoff housing is designed to interconnect leak free front case and rear housing, the support of output shaft simultaneously changes into cutting and supports, and improves the stressing conditions of output shaft greatly; When realizing that cutting of output shaft supported, utilized the power take-off gear axle to realize cutting cleverly and supported, utilize the back supporting construction realization front case and the coaxial requirement of rear housing of output shaft simultaneously.This auxiliary drive shaft is little to compact conformation, volume.In can being widely used in, the configuration of heavy change speed gear box.
Description of drawings
Fig. 1 rear power takeoff for speed changing box I structural representation.
Fig. 2 rear power takeoff for speed changing box II structural representation.
The specific embodiment
As shown in Figure 1, power takeoff is mounted in the rear end of change speed gear box, promptly is installed on the change speed gear box odd-side 14.Power take-off gear axle 2 comprises the supporting section 2.1 of end; Power take-off gear section 2.2; Shaft part 2.3, bearings section 2.4 and spline segment 2.5, connection bearing 15 is supported by change speed gear box odd-side 14 on the supporting section 2.1; Power take-off gear section 2.2 with reverse gearwheel 1 engagement of change speed gear box, bearings section 2.4 is supported on change speed gear box odd-side 14 housings through bearing 3.Spline segment 2.5 axle heads of drive axle 2 are provided with and connect supported hole 2.6; Offer radially oil passage 2.7 on the shaft part 2.3 of power take-off gear axle; Be provided with oil passage 2.8 in the shaft part, oil passage 2.8 1 ends communicate with oil passage 2.7 radially, the other end be connected supported hole 2.6 and communicate.Change speed gear box odd-side 14 housings are connected with the front case 4 of power takeoff.
Power takeoff comprises and interconnects leak free front case 4 and rear housing 5, adopts side seal between front case 4 and the rear housing 5; Front case 4 end faces are provided with guide and limit axle sleeve 4.1, and guide and limit axle sleeve 4.1 end faces are confined planes 4.2, and confined planes 4.2 contacts with the end face of bearing 3; Radially be provided with bearing limited ring groove 4.3 on front case 4 inwalls; Front case 4 side inwalls are provided with clutch driving unit antagonistic force hole 4.4.
Antagonistic force hole 4.4 is coaxial with piston hole 5.3.
Bearing limited ring groove 4.3 and bearing limited ring groove 5.2 end faces are to contacting, and are coaxial.
Be provided with output shaft 10 in the inner chamber between front case 4 and the rear housing 5, output shaft 10 comprises that the end is connected supported hole and connects the supporting section 10.1 that supports, clutch spline housing bonded assembly spline segment 10.2 and supporting section 10.3 with the axle head of power take-off gear axle.Supporting section 10.1 is provided with bearing 13, and bearing 13 adopts needle bearings, bearing 13 be connected supported hole 2.6 cooperations.Be connected with bearing 11 on the supporting section 10.3, the limited ring groove 5.2 that holds on the outer ring of bearing 11 and the rear housing 5 matches with bearing limited ring groove 4.3 on front case 4 inwalls, realizes the coaxial of front case 4 and rear housing 5.
Be connected with spline housing 12 on the spline segment 10.2, establish fork slot 12.1 on the spline housing 12, fork slot 12.1 be connected clutch driving unit.Clutch driving unit comprises the piston 7 of the piston hole 5.3 that is located at the rear housing inwall, and piston 7 can be split type and integral type with piston rod 7.1, is all-in-one-piece in the present embodiment.The end of piston rod 7.1 is located in the antagonistic force hole 4.4 of front case inwall, establishes spring 9 in the antagonistic force hole 4.4 and contacts with piston rod, connects shift fork 8 on the piston rod 7.1, and shift fork 8 is connected with fork slot on the spline housing 12.Piston rod 7.1 end portion are provided with the hole in the present embodiment, and spring 9 is located in hole and the antagonistic force hole 4.4.
Piston 7 constitutes the closed cylinder chamber with the piston hole 5.3 of rear housing 5.Rear housing 5 is provided with induction opening and is communicated with (not shown) with piston hole 5.3.
The mouth of output shaft 10 is provided with output and connects splined hole 10.4.
This power takeoff endwisely slips forward through the shift fork 8 promotion spline housings 12 that the automatically controlled gas operated piston 7 of soft distance drives through being bolted on the piston rod 7, is connected with power take-off gear axle 2 end splines, transmits the power that takes out from change speed gear box.
After cylinder is died, through the spring 9 that is installed on the housing piston 7, shift fork 8, spline housing 12 are resetted, spline housing 12 is thrown off power take-off gear axle 2, breaks off the output of power.
It and embodiment structurally have some differences; As shown in Figure 2, power take-off gear axle 20 has at least 6 sections formations among this embodiment, promptly on the five segment base plinth of embodiment 1, has increased and output shaft 30 bonded assembly supporting sections 20.1; Output shaft 30 among this embodiment is at least by two sections; Promptly include only clutch spline housing bonded assembly spline segment 30.1 and supporting section 30.2, spline segment 30.1 is provided with to be provided with the end and is connected supported hole 30.3, and the supporting section 20.1 of power take-off gear axle 20 extend in the connection supported hole 30.3; Supporting section 20.1 is provided with bearing 13.1 with being connected between the supported hole 30.3, realize the support to output shaft 30 like this.The structure of the power takeoff in the present embodiment among other structures of power takeoff and the embodiment 1 communicates, tired stating.
Claims (7)
1. rear power takeoff for speed changing box, it comprises the power take-off gear axle, an end of power take-off gear axle is provided with spline segment; Output shaft with the coaxial clutch of power take-off gear axle; It is corresponding with the spline segment on the power take-off gear axle that the one end axle circle of output shaft is provided with spline segment, and the spline segment of output shaft connects the clutch spline housing, and the clutch spline housing connects clutch driving unit; The other end of output shaft is provided with output and connects splined hole; It is characterized in that it also comprises interconnects leak free front case and rear housing, and the axial region of power take-off gear axle and the end of output shaft are established bearing and interconnected support, and the other end of output shaft is supported between front case and the rear housing; Offer radially oil passage on the shaft part of power take-off gear axle, be provided with oil passage in the shaft part, oil passage one end communicates with oil passage radially, and the other end communicates with axial end; Be provided with the bearing limited ring groove in the rear housing, the front case inwall is provided with the bearing limited ring groove, and the bearing limited ring groove in the rear housing and the bearing limited ring groove of front case inwall constitute output shaft backup bearing position-limited trough.
2. rear power takeoff for speed changing box according to claim 1 is characterized in that the axle head of power take-off gear axle is provided with the connection supported hole, the end of output shaft through bearings in the connection supported hole of power take-off gear axle axle head.
3. rear power takeoff for speed changing box according to claim 1 is characterized in that the end of output shaft is provided with the connection supported hole, and the axial region of power take-off gear axle is established in the connection supported hole of end of output shaft, output shaft through bearings on the power take-off gear axle.
4. rear power takeoff for speed changing box according to claim 1; The supporting section that it is characterized in that output shaft is provided with backup bearing, in the output shaft backup bearing position-limited trough that the bearing limited ring groove of bearing limited ring groove and the front case inwall of the outer ring of backup bearing in rear housing constitutes.
5. rear power takeoff for speed changing box according to claim 1 is characterized in that the rear housing inwall is provided with the piston hole of clutch driving unit, and the front case inwall is provided with clutch driving unit antagonistic force hole, and piston hole and antagonistic force hole are coaxial.
6. like claim 1 or 5 said rear power takeoff for speed changing box; It is characterized in that clutch driving unit comprises the piston that is located in the rear housing inwall piston hole; The end of piston rod is located in the antagonistic force hole of front case inwall; Establish spring in the antagonistic force hole and contact with piston rod, connect shift fork on the piston rod, shift fork connects spline housing.
7. like claim 1 or 2 or 3 said rear power takeoff for speed changing box; It is characterized in that connecting first backup bearing on the supporting section of end of power take-off gear axle; Connect second backup bearing on the bearings section, the end face of second backup bearing contacts with the confined planes of the guide and limit axle sleeve that the front case end face is established.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102731354A CN101746265B (en) | 2009-12-08 | 2009-12-08 | Rear power takeoff for speed changing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102731354A CN101746265B (en) | 2009-12-08 | 2009-12-08 | Rear power takeoff for speed changing box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101746265A CN101746265A (en) | 2010-06-23 |
| CN101746265B true CN101746265B (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102731354A Active CN101746265B (en) | 2009-12-08 | 2009-12-08 | Rear power takeoff for speed changing box |
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| CN (1) | CN101746265B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711881B (en) * | 2012-09-28 | 2016-08-10 | 北京航天发射技术研究所 | There is lubricating system and drive the take-off of function |
| CN105539142B (en) * | 2015-12-30 | 2017-12-12 | 江苏汇智知识产权服务有限公司 | A kind of tractor trailer driven pivot mechanism |
| CN107290088B (en) * | 2017-06-29 | 2023-04-07 | 柳州上汽汽车变速器有限公司 | Method for measuring pulling force of shifting fork bush |
| CN113757363A (en) * | 2021-08-11 | 2021-12-07 | 江铃汽车股份有限公司 | Power takeoff of gearbox |
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2009
- 2009-12-08 CN CN2009102731354A patent/CN101746265B/en active Active
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| CN101746265A (en) | 2010-06-23 |
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