CN203962881U - Slide variable block differential assembly - Google Patents
Slide variable block differential assembly Download PDFInfo
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- CN203962881U CN203962881U CN201420398344.8U CN201420398344U CN203962881U CN 203962881 U CN203962881 U CN 203962881U CN 201420398344 U CN201420398344 U CN 201420398344U CN 203962881 U CN203962881 U CN 203962881U
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Abstract
The utility model slides variable block differential assembly, and the axle tooth on motor driving shaft engages with the driving gear on output main shaft, and driving gear is in transmission connection with the one-way element on output main shaft, and one-way element connects with output main spindle multiple spline; On output main shaft, binding is connected to high gear driving gear and low-grade driving gear, and high gear driving gear engages with the secondary tooth of top grade of key connecting on countershaft, and low-grade driving gear engages with the secondary tooth of low grade of key connecting on countershaft; On countershaft, be provided with slidably high and low shift by spline and switch joint sleeve; On described driving gear, be connected with by helical spline the joint sleeve that reverses gear that can be combined with high gear driving gear.By said structure, make the power plant of vehicle can drive forward or backwards vehicle wheel rotation, but wheel cannot drive power plant slide in the situation that advancing.When vehicle advances, energy one-way sliding, has extended distance travelled.Meanwhile, vehicle can normally be selected high and low shift reversing, does not affect normal car backing operation.
Description
Technical field
The utility model relates to a kind of differential assembly for vehicle.
Background technique
In the vehicle that uses motor as power plant, power is passed to the semiaxis of wheel by differential assembly to drive vehicle wheel rotation.Motor and wheel, all the time in mechanical bond state, do not arrange clutch motor output shaft are separated with driving gear in the process of moving.In the time that vehicle slides under unpowered output state, motor and power section passive transport, so not only increased resistance to vehicle sliding, and the coasting distance of vehicle is shortened, and also increased the wearing and tearing of vehicle mechanical parts simultaneously.
For overcoming the problems referred to above, although existing two gear variable speed electric motors, particularlies have been installed one-way element at certain gear, one-way element belongs to the one in free wheel device, and its effect is to make certain element can only be by certain direction rotation, locking in another direction.Although the problem of motor and power section passive transport can solve vehicle sliding time, this gear that one-way element has been installed just cannot carry out car backing operation.Moreover due to clutch not being set, when vehicle is shifted gears in the process of moving, gear can clash into, and causes gearshift abnormal sound, and causes the damage of gear.
Model utility content
The purpose of this utility model is to provide one to slide variable block differential assembly, the problem of motor and power section passive transport while solving vehicle sliding by one-way element is installed, and the gear that one-way element has been installed simultaneously also can carry out car backing operation.
For achieving the above object, the technical solution of the utility model is: slide variable block differential assembly, comprise housing, in housing, be provided with and drive half driven off by shaft differential mechanism, in housing, be fixed with motor driving shaft by bearing, in housing, be also fixed with output main shaft and countershaft by bearing, the axle tooth on motor driving shaft engages with the driving gear on output main shaft, driving gear is in transmission connection with the one-way element on output main shaft, and one-way element connects with output main spindle multiple spline; On output main shaft, binding is connected to high gear driving gear and low-grade driving gear, and high gear driving gear engages with the secondary tooth of top grade of key connecting on countershaft, and low-grade driving gear engages with the secondary tooth of low grade of key connecting on countershaft; On countershaft, be provided with slidably high and low shift by spline and switch joint sleeve; On described driving gear, be connected with by helical spline the joint sleeve that reverses gear that can be combined with high gear driving gear.
While adopting technique scheme, in the time that motor orders about vehicle and moves ahead, motor driving shaft driver output main shaft rotates, because the joint sleeve that reverses gear is to be arranged on driving gear by helical spline, under the impact of the rotation direction of helical spline, now, the joint sleeve that reverses gear is close on driving gear end face under the axial thrust load effect of helical spline.Differential mechanism semiaxis with motor vehicle under the effect of output main shaft and countershaft upper driving structure rotates, thereby drives vehicle to move ahead.When vehicle advances while sliding, motor quits work, due to the effect of one-way element, the power that wheel anti-pass is come cuts off on output main shaft, can not pass through again driving gear driving electric machine and power section passive transport, reduce the energy loss of vehicle in the process of sliding, increase coasting distance, and extend the working life of vehicle mechanical parts.When motor falls back for ordering about vehicle, now motor reversal, under the impact of the rotation direction of helical spline, reverse gear joint sleeve under the axial thrust load effect of helical spline away from driving gear end face, and be combined with high gear driving gear, directly the power of motor driving shaft reversion output is outputed on high gear driving gear by the joint sleeve that reverses gear on driving gear, do not carry out the transmission of power by one-way element.Thereby realize under the condition that one-way element has been installed still and can switch joint sleeve by high and low shift and realize the high and low shift reversing of vehicle and switch.This device can be used in electric motor car, by said structure, makes the power plant of vehicle can drive forward or backwards vehicle wheel rotation, but wheel cannot drive power plant slide in the situation that advancing.When vehicle advances, energy one-way sliding, has extended distance travelled.Meanwhile, vehicle can normally be selected high and low shift reversing, does not affect normal car backing operation.
Further, described one-way element comprises the one-way element inner sleeve connecting with output main spindle multiple spline, is provided with unidirectional needle roller between one-way element inner sleeve and driving gear.Driving gear can rotate output main shaft by unidirectional needle roller and one-way element inner sleeve, and output main shaft can not be by one-way element inner sleeve and unidirectional needle roller reversion driving gear.
Further, the side near driving gear on described high gear driving gear is provided with draw-in groove, in described draw-in groove, is provided with keyway; The outer of the described joint sleeve that reverses gear is provided with the key tooth matching with draw-in groove interior spline.Above-mentioned effective combination that can ensure to reverse gear joint sleeve and high gear driving gear are set, ensures validity and the stability of transmission of power.
Further, on the secondary tooth of described top grade and low-grade secondary tooth, be provided with draw-in groove near a side of high and low shift switching joint sleeve separately, in described draw-in groove, be provided with keyway; Described high and low shift switch joint sleeve be provided with the secondary tooth of top grade and low-grade secondary tooth on the key tooth that matches of draw-in groove interior spline.Above-mentioned setting can conveniently be carried out gear shift operation, meanwhile, can reduce the impact between gear, reduces noise, increases the service life.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the utility model embodiment's structural representation;
Fig. 2 is the structural representation of friction spring in Fig. 1.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference character in Figure of description comprises: motor driving shaft 1, output main shaft 2, countershaft 3, differential mechanism 4, high-grade secondary tooth 5, low-grade secondary tooth 51, one-way element inner sleeve 21, one-way element 22, driving gear 23, the joint sleeve 25 that reverses gear, high gear driving gear 26, low-grade driving gear 27, high and low shift switch joint sleeve 31, differential mechanism input gear 41.
As shown in Figure 1, slide variable block differential assembly, comprise housing, in housing, by bearing, three parallel axles are installed, be followed successively by motor driving shaft 1, output main shaft 2 and countershaft 3.Axle tooth on motor driving shaft 1 engages with the driving gear 23 on output main shaft 2, and driving gear 23 is inner to be in transmission connection with the one-way element 22 of exporting on main shaft 2, one-way element inner sleeve 21 and output main shaft 2 splined.The left end binding that is positioned at driving gear 23 on output main shaft 2 is connected to a high gear driving gear 26, and high gear driving gear 26 engages with the secondary tooth 5 of top grade of key connecting on countershaft 3; The right-hand member key that is positioned at driving gear 23 on output main shaft 2 is connected with a low-grade driving gear 27, and low-grade driving gear 27 engages with the secondary tooth 51 of low grade of key connecting on countershaft 3.On countershaft 3, between the secondary tooth 5 of top grade and low-grade secondary tooth 51, be provided with a high and low shift and switch joint sleeve 31, high and low shift switches joint sleeve 31 and is slidably fixed on countershaft 3 by spline.Switch on joint sleeve 31 selector fork 8 is installed at high and low shift.On countershaft 3, be also provided with the countershaft tooth combining as a whole with it, countershaft tooth engages with the differential mechanism input gear 41 of differential mechanism 4, and differential mechanism 4 drives half shaft driven vehicle of back axle to move ahead.
On driving gear 23, be connected with the joint sleeve 25 that reverses gear by helical spline, reverse gear joint sleeve 25 slidably and with 26 combinations of high gear driving gear, when reversing, the power of output of directly motor driving shaft 1 being reversed outputs on high gear driving gear 26 by the joint sleeve 25 that reverses gear on driving gear 23, still can switch joint sleeve 31 by high and low shift and realizes high and low shift reversing thereby realize under the condition that one-way element 22 has been installed.
Working principle is as follows:
In the time of machine operation, driving vehicle moves ahead, by motor driving shaft 1, power is inputed to driving gear 23, driving gear 23 arrives one-way element inner sleeve 21 by unidirectional needle roller by transmission of power, one-way element inner sleeve 21 and output main shaft 2 splined drive high gear driving gear 26 and low-grade driving gear 27 on output main shaft 2 to rotate simultaneously.
Because high gear driving gear 26 and low-grade driving gear 27 engage with the secondary tooth 5 of top grade and low-grade secondary tooth 51 respectively, high-grade secondary tooth 5 and low-grade secondary tooth 51 also rotate simultaneously.Be connected with high-grade secondary tooth 5 under the stirring of selector fork when high and low shift switches joint sleeve 31, the power of high-grade secondary tooth 5 is just passed to high and low shift and is switched joint sleeve 31, drives countershaft 3 to rotate.
On countershaft 3, there is the countershaft tooth combining as a whole with it, power has been passed to differential mechanism 4, drive afterwards half shaft driven vehicle of back axle to move ahead.The joint sleeve 25 that reverses gear is now because driving gear 23 is close in the effect of helical spline.
In vehicle moves ahead process, motor quits work, and due to the power cut that wheel anti-pass is come in the effect of one-way element 22, vehicle is easily slided, and in gearshift procedure for vehicles, motor quits work and can easily shift gears equally.
In the time that vehicle need to be moveed backward, motor driving shaft 1 oppositely drives driving gear 23 to rotate, now due to the effect of one-way element 22, driving gear 23 does not drive output main shaft 2, reverse gear joint sleeve 25 so owing to having the effect of helical spline and the frictional force of friction spring, can draw close to high gear driving gear 26 fast, directly drive high gear driving gear 26 to reverse, realize high and low shift and can move backward.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic is not done too much description at this.Should be understood that; for a person skilled in the art, not departing under the prerequisite of the utility model structure, can also make some distortion and improvement; these also should be considered as protection domain of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.The protection domain that the application requires should be as the criterion with the content of its claim, and the embodiment in specification etc. are recorded the content that can require for power of interpretation profit.
Claims (4)
1. slide variable block differential assembly, comprise housing, in housing, be provided with and drive half driven off by shaft differential mechanism (4), in housing, be fixed with motor driving shaft (1) by bearing, it is characterized in that, in housing, be also fixed with output main shaft (2) and countershaft (3) by bearing, axle tooth on motor driving shaft (1) engages with the driving gear (23) on output main shaft (2), driving gear (23) is in transmission connection with the one-way element (22) on output main shaft (2), one-way element (22) and output main shaft (2) splined; Be connected to high gear driving gear (26) and low-grade driving gear (27) at the upper binding of output main shaft (2), high gear driving gear (26) engages with the secondary tooth of top grade (5) of the upper key connecting of countershaft (3), and low-grade driving gear (27) engages with the secondary tooth of low grade (51) of the upper key connecting of countershaft (3); Above be provided with slidably high and low shift by spline at countershaft (3) and switch joint sleeve (31); Described driving gear (23) upper by helical spline be connected with can with the joint sleeve that reverses gear (25) of high gear driving gear (26) combination.
2. the variable block differential assembly that slides according to claim 1, it is characterized in that, described one-way element (22) comprises and the one-way element inner sleeve (21) of output main shaft (2) splined, between one-way element inner sleeve (21) and driving gear (23), is provided with unidirectional needle roller.
3. the variable block differential assembly that slides according to claim 1, is characterized in that, the upper side near driving gear (23) of described high gear driving gear (26) is provided with draw-in groove, in described draw-in groove, is provided with keyway; The outer of the described joint sleeve that reverses gear (25) is provided with the key tooth matching with draw-in groove interior spline.
4. the variable block differential assembly that slides according to claim 1, it is characterized in that, on the secondary tooth of described top grade (5) and low-grade secondary tooth (51), be provided with draw-in groove near a side of high and low shift switching joint sleeve (31) separately, in described draw-in groove, be provided with keyway; Described high and low shift switch joint sleeve (31) be provided with the secondary tooth of top grade (5) and low-grade secondary tooth (51) on the key tooth that matches of draw-in groove interior spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398344.8U CN203962881U (en) | 2014-07-18 | 2014-07-18 | Slide variable block differential assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398344.8U CN203962881U (en) | 2014-07-18 | 2014-07-18 | Slide variable block differential assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962881U true CN203962881U (en) | 2014-11-26 |
Family
ID=51923465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420398344.8U Expired - Fee Related CN203962881U (en) | 2014-07-18 | 2014-07-18 | Slide variable block differential assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203962881U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678288A (en) * | 2017-02-08 | 2017-05-17 | 台州市大泰机电有限公司 | Gearbox for low-speed electric vehicle |
| CN106717667A (en) * | 2016-11-27 | 2017-05-31 | 苏州贝腾特电子科技有限公司 | A kind of clutch linkage device |
| CN107387715A (en) * | 2017-08-18 | 2017-11-24 | 广西容县铁牛农机技术开发有限公司 | Rotating steering differential |
| CN109185401A (en) * | 2018-10-31 | 2019-01-11 | 樊朝晖 | Two grades of bidirectional overtaking major-minor axis of one kind tangle synchromesh transmission and its control method |
| CN112728021A (en) * | 2020-12-28 | 2021-04-30 | 重庆市佳南工贸有限公司 | Gear box |
| CN115523287A (en) * | 2022-09-08 | 2022-12-27 | 江苏金彭集团有限公司 | Automatic gearbox control system and control method thereof |
-
2014
- 2014-07-18 CN CN201420398344.8U patent/CN203962881U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106717667A (en) * | 2016-11-27 | 2017-05-31 | 苏州贝腾特电子科技有限公司 | A kind of clutch linkage device |
| CN106678288A (en) * | 2017-02-08 | 2017-05-17 | 台州市大泰机电有限公司 | Gearbox for low-speed electric vehicle |
| CN107387715A (en) * | 2017-08-18 | 2017-11-24 | 广西容县铁牛农机技术开发有限公司 | Rotating steering differential |
| CN107387715B (en) * | 2017-08-18 | 2023-07-18 | 广西容县铁牛农机技术开发有限公司 | Forward and reverse steering differential mechanism |
| CN109185401A (en) * | 2018-10-31 | 2019-01-11 | 樊朝晖 | Two grades of bidirectional overtaking major-minor axis of one kind tangle synchromesh transmission and its control method |
| CN112728021A (en) * | 2020-12-28 | 2021-04-30 | 重庆市佳南工贸有限公司 | Gear box |
| CN115523287A (en) * | 2022-09-08 | 2022-12-27 | 江苏金彭集团有限公司 | Automatic gearbox control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20160718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |