CN202790201U - Limit structure of automobile unilateral synchronizer - Google Patents
Limit structure of automobile unilateral synchronizer Download PDFInfo
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- CN202790201U CN202790201U CN 201220438282 CN201220438282U CN202790201U CN 202790201 U CN202790201 U CN 202790201U CN 201220438282 CN201220438282 CN 201220438282 CN 201220438282 U CN201220438282 U CN 201220438282U CN 202790201 U CN202790201 U CN 202790201U
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Abstract
The utility model provides a limiting structure of an automobile unilateral synchronizer and belongs to the technical field of automobiles. The technical problems such as poor universality of the existing limit structure of the automobile unilateral synchronizer are solved. The unilateral synchronizer comprises a gear hub, a gear sleeve working end and a gear sleeve idling end, wherein a combining gear and a synchronous ring which can push against each other are arranged between the gear hub and the gear sleeve working end, and a limit assembly capable of limiting the sliding of the gear sleeve is arranged on one end surface of the gear hub, wherein the end surface iswhich is at the same side of the gear sleeve idling end.
Description
Technical field
The utility model belongs to automobile technical field, relates to a kind of automobile Unilateral synchronizer, particularly a kind of limit structure of automobile Unilateral synchronizer.
Background technique
Because transmission input shaft and output shaft rotate with speed separately, close " synchronously " problem of existence during the conversion gear.Two different gears of rotational speed mesh by force impact will inevitably occur, and damage gear.Therefore, the gear shift of old-fashioned speed changer will be adopted the mode of " bipod clutch ", upgrades to stop a moment at neutral position, and downshift will be at the neutral position open out, to reduce the speed discrepancy of gear.But this operates more complicated, is difficult to grasp accurately.Therefore the Designer creates " synchronizer ", makes and will reach consistent rotating speed and smoothly engagement by meshed gears by synchronizer.
At present using more at popular automobile is inertia synchronizer, it mainly is comprised of clutch collar, synchronous lock ring etc., its feature is to rely on rubbing action to realize synchronously, on the gear ring of clutch collar, synchronous lock ring and gear to be joined chamfering being arranged all is angle of lock, the inner conical surface of lock ring contacts with gear-wheel gear-ring male cone (strobilus masculinus) to be joined and produces friction synchronously, angle of lock and the conical surface have been done suitable selection when design, conical surface friction is so that tooth cover to be engaged is synchronous rapidly with gear ring, simultaneously can produce again a kind of locking effect, prevent that gear from meshing at the advanced in unison row.When synchronous lock ring inner conical surface with after gear-wheel gear-ring male cone (strobilus masculinus) to be joined contacts, reduce rapidly or be elevated to synchronous lock ring rotating speed at the effect lower gear rotating speed of friction torque and equate, both synchronous rotaries, gear is zero with respect to the rotating speed of synchronous lock ring, thereby moment of inertia also disappears simultaneously, at this moment under the promotion of active force, clutch collar engages with the synchrolock annular gear in the clear, and further engages with the gear ring of gear to be joined and finish gearshift procedure.
In the type of synchronizer, also has a kind of more special synchronizer structure, that is exactly Unilateral synchronizer, the synchronizing ring of common synchronizer to two side shiftings of II axle respectively can from two different gears in conjunction with the tooth combination, the situation that this does not just exist synchronizer to come off from the II axle, Unilateral synchronizer are owing to the odd number gear or because this synchronizer that the reasons in structure of speed changer occurs is only controlled the structure in conjunction with tooth of a gear.The problem that this kind structure exists is: the tooth cover of synchronizer easily from the tooth hub landing cause can't engage a gear.
In patent (CN101985962A), disclose a kind of Unilateral synchronizer, comprised synchromesh gear hub, synchronizer gear sleeve, elastic slide block and synchronizing ring; Described synchronizer gear sleeve slidably is connected on the described synchromesh gear hub by spline, described synchronizing ring is socketed in the annular groove of described synchromesh gear hub one side in axial sliding, described elastic slide block is sheet-metal member, its elastic card is located in the spline between the spline of the described synchronizer gear sleeve of described synchronizer, is provided with the positioning end of extension in T shape between described front-end and back-end; Described front end is the cydariform distending, the tooth cover was not easy to drop out when this kind Unilateral synchronizer had utilized the method for rigid slide block and elastic element combination to make gearshift, itself is this to prevent that the mode of tooth cover landing is not too reliable, and use the structure that this synchronizer need to change supporting with it some other component, and as manufacturing enterprise, if can not there be larger technical advantage to be difficult to change production line or production product, because this meeting is so that the larger increase of cost of production, the versatility of this Unilateral synchronizer is relatively poor in the Cost Competition of automobile industry fierceness nowadays.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for existing technology, a kind of limit structure of automobile Unilateral synchronizer is provided, technical problem to be solved in the utility model is under the prerequisite that prevents the synchronizer gear sleeve landing, improves the versatility of Unilateral synchronizer.
The purpose of this utility model can realize by following technical proposal: a kind of limit structure of automobile Unilateral synchronizer, Unilateral synchronizer comprises tooth hub, tooth cover working end and the idle end of tooth cover, be provided with between described tooth hub and the tooth cover working end can be mutually against in conjunction with tooth and synchronizing ring, it is characterized in that the end face with the idle end of tooth cover homonymy on the tooth hub is provided with the limit assembly that can limit the slip of described tooth cover.
Working principle of the present utility model is: the synchronizing ring of Unilateral synchronizer promotes the tooth cover, tooth cover working end promotes synchronizing ring to be made the rubbing surface of synchronizing ring and is bonded to synchronizing ring in conjunction with tooth when synchronous in conjunction with tooth, the be slidingly connected outer surface of tooth of tooth cover makes engine power transmit output shaft, and then realization engage a gear, when speed changer changes other gears, this tooth cover can move to the other end of synchronizing ring, this moment, limit assembly blocked to prevent the landing from the tooth hub of tooth cover with the idle end of tooth cover, this structure does not need to change original production line, has improved the versatility of this structure.
In the limit structure of above-mentioned a kind of automobile Unilateral synchronizer, described limit assembly comprises some limiting boards, and an end of described limiting board is connected in the annular groove of tooth hub, and described limiting board can be resisted against on the end face of the idle end of tooth cover.Can not change the structure of former synchronizer, after the component such as synchronizing ring all install, limiting board is fixed on the tooth hub, can realize the spacing of Unilateral synchronizer, also need not to change the original production line.
In the limit structure of above-mentioned a kind of automobile Unilateral synchronizer, described limiting board comprises mutually vertical and the plate one and the plate two that are connected, and described plate one is connected with the tooth hub, described plate two to the outer surface of tooth hub stretch out and can with the idle end of tooth cover end face against.The tooth hub is provided with the groove that is beneficial to loss of weight and processing, in the groove of synchronizer finished product plate one is fixed on the tooth hub.
In the limit structure of above-mentioned a kind of automobile Unilateral synchronizer, described plate one is welded on the internal surface of annular groove.Welding is the simple and fixed Placement of a kind of operation.
In the limit structure of above-mentioned a kind of automobile Unilateral synchronizer, described plate two is fan-shaped, and described plate two exceeds tooth hub outer surface 3～12mm.Can select different plate faces to stretch out height according to the position of Unilateral synchronizer, the gear of this synchronizer control and the specification of speed changer.
In the limit structure of above-mentioned a kind of automobile Unilateral synchronizer, described limiting board has 2～6, and is evenly distributed on the tooth hub.Consider stressed uniformity and the spacing fixing of plate face, can select the limiting board of suitable number.
In the limit structure of above-mentioned a kind of automobile Unilateral synchronizer, as preferred version, described limiting board is 3.
Compared with prior art, the utlity model has following advantage:
1, the limiting board that welds at the tooth hub can not change original synchronizer production line, thereby has reduced cost of production, so and to Unilateral synchronizer all can use, make the versatility of this structure high.
2, the limit structure of this Unilateral synchronizer comprises the limiting board of some block weldings in the groove of tooth hub, and is simple in structure, is easy to realize.
3, Unilateral synchronizer generally is positioned at the two ends of output shaft, this limit structure set up operation and the performance that can not affect speed changer.
Description of drawings
Fig. 1 is the structural representation of the limit structure of Unilateral synchronizer in the present embodiment.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural representation of limiting board in the present embodiment.
Fig. 4 is the right elevation of Fig. 3.
Fig. 5 is the plan view of Fig. 3.
Among the figure, 1, the tooth hub; 2, tooth cover working end; 3, the idle end of tooth cover; 4, in conjunction with tooth; 5, synchronizing ring; 6, limiting board; 7, plate one; 8, plate two.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Working principle of the present utility model is: the synchronizing ring 5 of Unilateral synchronizer promotes the tooth cover, tooth cover working end 2 promote synchronizing ring 5 make the rubbing surface of synchronizing ring 5 be bonded in conjunction with tooth 4 synchronizing ring 5 with in conjunction with tooth 4 synchronously the time, the tooth cover is slidingly socketed at the outer surface in conjunction with tooth 4 and makes engine power transmit output shaft, and then realization engage a gear, when speed changer changes other gears, this tooth cover can move to the other end of synchronizing ring 5, this moment, limit assembly blocked to prevent the landing from the tooth hub 1 of tooth cover with the idle end 3 of tooth cover, this structure does not need to change original production line, has improved the versatility of this structure.
As depicted in figs. 1 and 2, Unilateral synchronizer comprises tooth hub 1, tooth cover working end 2 and the idle end 3 of tooth cover, be provided with between tooth hub 1 and the tooth cover working end 2 can be mutually against in conjunction with tooth 4 and synchronizing ring 5, end face with the idle end of tooth cover 3 homonymies on tooth hub 1 is provided with the limit assembly that can limit the slip of tooth cover, limit assembly comprises some limiting boards 6, one end of limiting board 6 is connected in the annular groove of tooth hub 1, limiting board 6 can be resisted against on the end face of the idle end 2 of tooth cover, limiting board 6 comprises plate 1 and plate 28 vertically mutual and that be connected, plate 1 is connected with tooth hub 1, plate 28 to the outer surface of tooth hub 1 stretch out and can with the idle end of tooth cover 3 end faces against, tooth hub 1 is provided with the groove that is beneficial to loss of weight and processing, in the groove of synchronizer finished product, plate one is fixed on the tooth hub 1, plate 1 is welded on the internal surface of annular groove, and welding is the simple and fixed Placement of a kind of operation.
Such as Fig. 3, Fig. 4 and shown in Figure 5, plate 28 is fan-shaped, plate 28 exceeds tooth hub outer surface 3～12mm, can select different plate faces to stretch out height according to the position of Unilateral synchronizer, the gear of this synchronizer control and the specification of speed changer, limiting board 6 has 2～6, and is evenly distributed on the tooth hub 1, considers stressed uniformity and the spacing fixing of plate face, can select the limiting board 6 of suitable number, the number of limiting board 6 is preferably 3 in the present embodiment.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (7)
1. the limit structure of an automobile Unilateral synchronizer, Unilateral synchronizer comprises tooth hub (1), tooth cover working end (2) and the tooth idle end of cover (3), be provided with between described tooth hub (1) and the tooth cover working end (2) can be mutually against in conjunction with tooth (4) and synchronizing ring (5), it is characterized in that end face upper at tooth hub (1) and the idle end of tooth cover (3) homonymy is provided with and can limits the limit assembly that described tooth cover slides.
2. the limit structure of automobile Unilateral synchronizer according to claim 1, it is characterized in that, described limit assembly comprises some limiting boards (6), one end of described limiting board (6) is connected in the annular groove of tooth hub (1), and described limiting board (6) can be resisted against on the end face of the tooth idle end of cover (3).
3. the limit structure of automobile Unilateral synchronizer according to claim 2, it is characterized in that, described limiting board (6) comprises plate one (7) and plate two (8) vertically mutual and that be connected, described plate one (7) is connected with tooth hub (1), described plate two (8) to the outer surface of tooth hub (1) stretch out and can with the idle end of tooth cover (3) end face against.
4. automobile Unilateral synchronizer according to claim 3 is characterized in that, described plate one (7) is welded on the internal surface of annular groove.
5. according to claim 3 or the limit structure of 4 described automobile Unilateral synchronizers, it is characterized in that described plate two (8) is fan-shaped, described plate two (8) exceeds tooth hub (1) outer surface 3～12mm.
6. according to claim 2 or the limit structure of 3 or 4 described automobile Unilateral synchronizers, it is characterized in that described limiting board (6) has 2～6, and be evenly distributed on the tooth hub (1).
7. the limit structure of automobile Unilateral synchronizer according to claim 6 is characterized in that, described limiting board (6) is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220438282 CN202790201U (en) | 2012-08-30 | 2012-08-30 | Limit structure of automobile unilateral synchronizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220438282 CN202790201U (en) | 2012-08-30 | 2012-08-30 | Limit structure of automobile unilateral synchronizer |
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|---|---|
| CN202790201U true CN202790201U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220438282 Expired - Fee Related CN202790201U (en) | 2012-08-30 | 2012-08-30 | Limit structure of automobile unilateral synchronizer |
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| CN (1) | CN202790201U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728295A (en) * | 2015-04-07 | 2015-06-24 | 天津天海同步科技股份有限公司 | Automobile synchronizer assembly |
| CN106989115A (en) * | 2017-05-02 | 2017-07-28 | 重庆青山工业有限责任公司 | A kind of automobile speed variator reverse gear synchronizer structure |
| CN109404530A (en) * | 2018-11-20 | 2019-03-01 | 宜宾丰川动力科技有限公司 | A kind of the speed changer combined cover and gear ring structure of novel back taper form |
-
2012
- 2012-08-30 CN CN 201220438282 patent/CN202790201U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728295A (en) * | 2015-04-07 | 2015-06-24 | 天津天海同步科技股份有限公司 | Automobile synchronizer assembly |
| CN104728295B (en) * | 2015-04-07 | 2023-08-29 | 天津天海同步科技有限公司 | Automobile synchronizer assembly |
| CN106989115A (en) * | 2017-05-02 | 2017-07-28 | 重庆青山工业有限责任公司 | A kind of automobile speed variator reverse gear synchronizer structure |
| CN109404530A (en) * | 2018-11-20 | 2019-03-01 | 宜宾丰川动力科技有限公司 | A kind of the speed changer combined cover and gear ring structure of novel back taper form |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130830 |