CN202100702U - Self-locking mechanism for automobile transmission - Google Patents
Self-locking mechanism for automobile transmission Download PDFInfo
- Publication number
- CN202100702U CN202100702U CN2011201991658U CN201120199165U CN202100702U CN 202100702 U CN202100702 U CN 202100702U CN 2011201991658 U CN2011201991658 U CN 2011201991658U CN 201120199165 U CN201120199165 U CN 201120199165U CN 202100702 U CN202100702 U CN 202100702U
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- CN
- China
- Prior art keywords
- self
- locking
- spring
- groove
- steel ball
- Prior art date
- 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 - Lifetime
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/38—Detents
Abstract
The utility model relates to a self-locking mechanism for an automobile transmission, which belongs to the technical field of automobile engineering, and includes a self-locking bolt, a self-locking spring, a spring support, a self-locking sliding block, a self-locking steel ball and a shift fork, wherein the self-locking spring is sleeved outside the spring support, and the upper and the lower ends of the self-locking spring are contacted with the self-locking bolt and the self-locking sliding block respectively; the self-locking sliding block is fixedly connected with the spring support; and the upper and the lower sides of the self-locking steel balls are contacted with the self-locking sliding block and the shift fork. As the self-locking steel ball is in point contact with the self-locking sliding block, and the generated friction is rolling friction, the friction resistance of the self-locking mechanism is reduced, gear-shifting hand feeling improvement is facilitated; at the same, as the lubricating effect is increased due to the an oil groove added into the self-locking sliding block, the rolling friction coefficient is further reduced; and the self-locking sliding block enhances the supporting capability of the spring support, thereby protecting the self-locking spring and prolonging the service life of the mechanism. The self-locking mechanism for the automobile transmission has lighter and more durable material, lower cost, simple and compact structure and convenience for assembling and using.
Description
Technical field
The utility model relates to the device in a kind of AE field, specifically is a kind of self-locking mechanism that is used for automotive transmission.
Background technique
The speed changer self-locking mechanism is mainly used in mechanical aspects, and this type mechanism is widely used on the various automobile.Shifter of transmission requires behind the retaining can not off-gear, trip stop, and needs to increase self-locking mechanism.Go into the retaining back under the spring force effect, the fixed effect of playing self-locking of declutch shift shaft.The client requires increasingly highly for speed changer, needs gearshift to have to shift gears clearly just needs increase self-locking spring power of feel, reduces self-locking frictional force.Self-locking mechanism in the past comprises self-locking spring, self-locking steel ball and declutch shift shaft groove, the direct top of self-locking steel ball self-locking spring.In the shift process, the frictional force that produces between self-locking steel ball and declutch shift shaft, the self-locking spring belongs to sliding friction basically.Along with the elimination of friction torque synchronously in the speed changer synchronizing process, this frictional force produces gearshift secondary pulse power in meeting, and the sense of exchange block produces baneful influence.So need reduce this frictional force as far as possible.
Retrieval through to existing technology is found, Chinese patent document number CN201396424, open day February 3 in 2010; Put down in writing a kind of shifting vehicle gearbox self-locking mechanism; Comprise loam cake, fork shaft, shift fork, locking nut, guide block, wherein: a self-locking steel ball is arranged in the fork shaft restraining groove, and there is a steel ball self-locking steel ball top; Point contacts between self-locking steel ball and steel ball; Steel ball withstands self-locking spring, self-locking steel ball and fork shaft rolling friction, and loam cake is through self-locking steel ball, steel ball and self-locking spring restriction shift fork drive range.The deficiency of this structure is that spatial arrangement is compact inadequately, and mechanism need increase a steel ball, and cost is bigger.The flexibility and the popularization of arrangement of mechanism scheme have been limited.
Summary of the invention
The above-mentioned deficiency that the utility model exists to existing technology; A kind of self-locking mechanism that is used for automotive transmission is provided; Make it under arrangement space, design cost condition of limited, realize the shift of transmission auto-lock function, compare existing technology, its volume is little, cost is low, flexibility is high.
The utility model is realized through following technological scheme; The utility model comprises: self-locking screw, self-locking spring, spring support, from lock slide, self-locking steel ball and declutch shift shaft; Wherein: self-locking spring is socketed on outside the spring support and upper/lower terminal contacts with self-locking screw with from lock slide respectively; Be fixedly connected with spring support from lock slide, the upper and lower side of self-locking steel ball contacts respectively with from lock slide and declutch shift shaft.
Described spring support be coaxial setting from lock slide.
Described spring support and the external diameter that is cylindrical structure and spring support from lock slide are less than the external diameter from lock slide.
Describedly be provided with oil groove from the lock slide outer surface.
An axial end vertical with the deformation direction of self-locking spring and declutch shift shaft of described declutch shift shaft is provided with groove, described self-locking steel ball and contact grooves.
Described groove comprises: neutral groove and the self-locking groove that joins with its two ends.
The cross-section structure of described neutral groove and self-locking groove is circular arc, and the degree of depth of neutral groove is less than the degree of depth of self-locking groove.
The utility model carries out work in the following manner: during the neutral state, the self-locking steel ball is in declutch shift shaft intermediate groove place, and after the gearshift beginning, declutch shift shaft is the axial direction motion in the effect lower edge of shifter of transmission.Self-locking spring is with in lock slide is contained in the housing self-locking hole; Fix by self-locking screw; The spring force of self-locking spring makes the self-locking steel ball contact with lower plane point from lock slide, and along with the axial motion of declutch shift shaft, the self-locking steel ball is done along the declutch shift shaft groove surfaces and pumped.After gearshift finished, the self-locking steel ball just in time was positioned at a self-locking groove of declutch shift shaft, and this moment, self-locking spring had the component of axial direction to the elastic force of self-locking steel ball to declutch shift shaft groove inclined-plane, stoped the axial motion of declutch shift shaft, thereby played the purpose of self-locking.
In shift process, the spring force of self-locking spring is the key that mechanism realizes self-locking; The frictional force that mechanism kinematic produced can be brought disadvantageous secondary pulse power and unnecessary energy loss to gearshift, therefore needs to reduce the frictional force that motion produces as far as possible.The utility model since the self-locking steel ball with contact for putting from lock slide; Self-locking steel ball and declutch shift shaft, the friction that between lock slide, produces belong to rolling friction, have reduced the surface friction drag of self-locking mechanism, the lifting of the feel that helps shifting gears; Simultaneously; Increase oil groove from lock slide, increase lubrication effect, further reduce coefficient of rolling friction.And, increase the spring support support from lock slide, play the protection self-locking spring, prevent that off-centre from producing destruction to self-locking spring, increase mechanism's effect in working life.The utility model material gentlier, more wear-resisting, price is lower, and simple in structure, compact, the assembling, easy to use.
Description of drawings
Fig. 1 is the plan view of the utility model when being in neutral gear position.
Fig. 2 be the utility model from the lock slide stereogram.
Fig. 3 is the declutch shift shaft plan view of the utility model.
Fig. 4 is the plan view after the utility model gearshift.
Embodiment
Embodiment in the face of the utility model elaborates down; Present embodiment is being to implement under the prerequisite with the utility model technological scheme; Provided detailed mode of execution and concrete operating process, but the protection domain of the utility model is not limited to following embodiment.
Embodiment
Like Fig. 1, shown in Figure 2; Present embodiment comprises: self-locking screw 1, self-locking spring 2, spring support 6, from lock slide 3, self-locking steel ball 4 and declutch shift shaft 5; Wherein: self-locking spring 2 is socketed on outside the spring support 6 and its upper/lower terminal contacts with self-locking screw 1 with from lock slide 3 respectively; Be fixedly connected with spring support 6 from lock slide 3, the upper and lower side of self-locking steel ball 4 contacts respectively with from lock slide 3 and declutch shift shaft 5.
Described spring support 6 be coaxial setting from lock slide 3.
Described spring support 6 be cylindrical body from lock slide 3.
The external diameter of described spring support 6 is less than the external diameter from lock slide 3.
Describedly be provided with oil groove 7 from lock slide 3 outer surfaces.
As shown in Figure 3, described declutch shift shaft 5 axially vertical with the deformation direction of self-locking spring 2, and the one of which end is provided with groove 10, and described self-locking steel ball 4 contacts with groove 10.
Described groove 10 comprises: neutral groove 8 and the self-locking groove 9 that joins with its two ends.
The cross-section structure of described neutral groove 8 and self-locking groove 9 is circular arc, and the degree of depth of neutral groove 8 is less than the degree of depth of self-locking groove 9.
During use, self-locking screw 1, self-locking spring 2, spring support 6, be installed in the case of transmission self-locking hole from lock slide 3, self-locking steel ball 4, declutch shift shaft 5 one ends insert in the case of transmission shift fork axis hole.
In the shift process, declutch shift shaft 5 is along declutch shift shaft axially bored line direction, i.e. horizontal slip among the figure.Self-locking spring 2, from lock slide 3, self-locking steel ball 4 along the self-locking hole axial direction, promptly figure in vertical direction move.The slip of declutch shift shaft 5, its groove 10 drive self-locking steel ball 4 and move along the self-locking hole axial direction is back and forth upper and lower.
As shown in Figure 1, during neutral, owing to receive the spring force of self-locking spring 2, self-locking steel ball 4 withstands in the neutral groove 8 of declutch shift shaft 5.
Like Fig. 1, Fig. 3 and shown in Figure 4, in the time of gearshift, the gearshift power on the operating mechanism passes on the declutch shift shaft 5; Make declutch shift shaft 5 slide along its axial direction; From lock slide 3 and the slip of self-locking steel ball 4 along with declutch shift shaft 5, self-locking steel ball 4 up moves, self-locking spring 2 compressions; Along with moving of declutch shift shaft 5, self-locking steel ball 4 pushes up the top of neutral groove 8 gradually, and at this moment, self-locking spring 2 decrements are maximum.
Declutch shift shaft 5 continues to move, and self-locking steel ball 4 is downward along self-locking groove 9, and self-locking spring 2 decrements reduce gradually; When declutch shift shaft 5 continues to slide, make when self-locking steel ball 4 pushes up the bottom of self-locking groove 9 that gearshift is accomplished.At this moment, declutch shift shaft 5 receives the axial component of spring force on the self-locking steel ball 4, makes declutch shift shaft 5 fix and can not break away from this gear.
Claims (9)
1. self-locking mechanism that is used for automotive transmission; It is characterized in that: comprising: self-locking screw, self-locking spring, spring support, from lock slide, self-locking steel ball and declutch shift shaft; Wherein: self-locking spring be socketed on outer and its upper/lower terminal of spring support respectively with self-locking screw with contact from lock slide; Be fixedly connected with spring support from lock slide, the upper and lower side of self-locking steel ball contacts with declutch shift shaft respectively with from lock slide.
2. the self-locking mechanism that is used for automotive transmission according to claim 1 is characterized in that, described spring support be coaxial setting from lock slide.
3. the self-locking mechanism that is used for automotive transmission according to claim 1 and 2 is characterized in that, described spring support be cylindrical body from lock slide.
4. the self-locking mechanism that is used for automotive transmission according to claim 3 is characterized in that the external diameter of described spring support is less than the external diameter from lock slide.
5. the self-locking mechanism that is used for automotive transmission according to claim 2 is characterized in that, described outer surface from lock slide is provided with oil groove.
6. the self-locking mechanism that is used for automotive transmission according to claim 1 is characterized in that, an axial end vertical with the deformation direction of self-locking spring and declutch shift shaft of described declutch shift shaft is provided with groove, described self-locking steel ball and contact grooves.
7. the self-locking mechanism that is used for automotive transmission according to claim 6 is characterized in that, described groove comprises: neutral groove and the self-locking groove that joins with its two ends.
8. the self-locking mechanism that is used for automotive transmission according to claim 7 is characterized in that, the cross-section structure of described neutral groove and self-locking groove is circular arc.
9. according to claim 7 or the 8 described self-locking mechanisms that are used for automotive transmission, it is characterized in that the degree of depth of described neutral groove is less than the degree of depth of self-locking groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201991658U CN202100702U (en) | 2011-06-14 | 2011-06-14 | Self-locking mechanism for automobile transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201991658U CN202100702U (en) | 2011-06-14 | 2011-06-14 | Self-locking mechanism for automobile transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100702U true CN202100702U (en) | 2012-01-04 |
Family
ID=45386716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201991658U Expired - Lifetime CN202100702U (en) | 2011-06-14 | 2011-06-14 | Self-locking mechanism for automobile transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100702U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690685A (en) * | 2015-02-11 | 2015-06-10 | 广西科技大学鹿山学院 | Special tool for mounting self-locking steel ball in gearshift mechanism and mounting method |
| CN106763062A (en) * | 2016-12-07 | 2017-05-31 | 上海宇航系统工程研究所 | A kind of forced locking device |
| CN108124600A (en) * | 2018-02-05 | 2018-06-08 | 温岭市明华齿轮有限公司 | Driving axle for rice cutter |
| CN111946815A (en) * | 2019-05-17 | 2020-11-17 | Zf 腓德烈斯哈芬股份公司 | Locking device and transmission |
| CN112324901A (en) * | 2020-11-17 | 2021-02-05 | 陕西法士特齿轮有限责任公司 | Reverse gear system with synchronization function for medium and light truck transmission |
-
2011
- 2011-06-14 CN CN2011201991658U patent/CN202100702U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690685A (en) * | 2015-02-11 | 2015-06-10 | 广西科技大学鹿山学院 | Special tool for mounting self-locking steel ball in gearshift mechanism and mounting method |
| CN104690685B (en) * | 2015-02-11 | 2016-09-07 | 广西科技大学鹿山学院 | The specific purpose tool of a kind of self-locking steel ball installed in shifter and installation method |
| CN106763062A (en) * | 2016-12-07 | 2017-05-31 | 上海宇航系统工程研究所 | A kind of forced locking device |
| CN106763062B (en) * | 2016-12-07 | 2018-11-09 | 上海宇航系统工程研究所 | A kind of forced locking device |
| CN108124600A (en) * | 2018-02-05 | 2018-06-08 | 温岭市明华齿轮有限公司 | Driving axle for rice cutter |
| CN111946815A (en) * | 2019-05-17 | 2020-11-17 | Zf 腓德烈斯哈芬股份公司 | Locking device and transmission |
| CN111946815B (en) * | 2019-05-17 | 2024-03-01 | Zf 腓德烈斯哈芬股份公司 | Locking device and transmission device |
| CN112324901A (en) * | 2020-11-17 | 2021-02-05 | 陕西法士特齿轮有限责任公司 | Reverse gear system with synchronization function for medium and light truck transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Liuzhou SAIC Motor Automobile Transmission Co., Ltd. Assignor: Shanghai Automotive Transmission Co., Ltd. Contract record no.: 2014450000074 Denomination of utility model: Self-locking mechanism for automobile transmission Granted publication date: 20120104 License type: Exclusive License Record date: 20141119 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |
|
| CX01 | Expiry of patent term |