CN202165588U - Shifting fork mechanism of automobile transmission - Google Patents
Shifting fork mechanism of automobile transmission Download PDFInfo
- Publication number
- CN202165588U CN202165588U CN2011202658794U CN201120265879U CN202165588U CN 202165588 U CN202165588 U CN 202165588U CN 2011202658794 U CN2011202658794 U CN 2011202658794U CN 201120265879 U CN201120265879 U CN 201120265879U CN 202165588 U CN202165588 U CN 202165588U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- shift shaft
- declutch shift
- fork mechanism
- shifting fork
- 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 - Fee Related
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Classifications
-
- 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
- F16H2063/3079—Shift rod assembly, e.g. supporting, assembly or manufacturing of shift rails or rods; Special details thereof
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model provides a shifting fork mechanism of an automobile transmission, which belongs to the technical field of automobiles and aims at resolving the problem that the shifting fork mechanism of an existing automobile transmission has large damping. The shifting fork mechanism of the automobile transmission comprises a fork shaft and a fork which is fixed on the fork shaft through a fastening part. Two end portions of the fork shaft are located in installation holes of a transmission casing and fixedly connected with shaft sleeves, and the outer side faces of the shaft sleeves are contacted with the inner surfaces of the installation holes. The shaft sleeves are made of nonmetal materials, and direct contact between metal materials in relative movements of the fork shaft and the installation holes can be avoided, thereby reducing abrasion and damping. Openings are arranged on the outer walls of the shaft sleeves, thereby improving tension of the shaft sleeves in installation and facilitating installation of the fork shaft.
Description
Technical field
The utility model belongs to automobile technical field, relates to a kind of speed changer, particularly a kind of shifting vehicle gearbox shifting fork mechanism.
Background technique
Along with the development of rapid growth of economy and auto manufacturing, automobile kind and model constantly increase, and market improves constantly the Security of automobile, the requirement of reliability, and the Consumer also improves constantly the requirement of car steering travelling comfort.Automobile gear shift is a kind of enjoyment place that drives a car, and this has higher requirement to the shifting vehicle gearbox device, fluency and comfortable feel property when comprising gearshift.
Specifically the requirement for the selector fork axle is: the mounting hole on selector fork axle and the forward and backward housing has good concentricity and reduces the frictional force between axle and the hole as far as possible, thereby guarantees that speed changer has good gearshift performance.The shift of transmission shift fork in the market and the housing mounting type of speed changer have two kinds basically, and a kind of is to adopt linear bearing is installed to the form in the housing, and the selector fork axle cooperates with linear bearing and endwisely slips; Another kind of mode is the form for adopting the selector fork axle directly to contact with the case of transmission mounting hole then.
The problem of above-mentioned fit is: 1, adopt the cost of linear bearing higher; Though 2, directly the mode of assembling has been saved linear bearing,, the selector fork axle is big with the frictional force that mounting hole directly contacts, concentricity is difficult to control, the gearshift poor performance.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology; A kind of shifting vehicle gearbox shifting fork mechanism has been proposed; This mechanism problem to be solved is to avoid direct contact of declutch shift shaft and housing mounting hole place metal; Damping when making declutch shift shaft and housing mounting hole slide relative is less, reduces production costs simultaneously.
The purpose of the utility model can realize through following technical proposal: a kind of shifting vehicle gearbox shifting fork mechanism; Described speed changer comprises the housing with mounting hole; This shifting fork mechanism is arranged on the speed changer, and this shifting fork mechanism comprises declutch shift shaft and shift fork, and described shift fork is fixed on the declutch shift shaft through fastening piece; The two-end part of described declutch shift shaft is in the mounting hole of case of transmission; At least one end of described declutch shift shaft is fixed with axle sleeve, and the outer side surface of axle sleeve contacts with the internal surface of mounting hole, and described axle sleeve adopts nonmetallic material to process.
This shifting vehicle gearbox shifting fork mechanism is provided with the axle sleeve that adopts nonmetallic material to process between the housing of declutch shift shaft and speed changer; Avoided declutch shift shaft to contact with the direct of housing metallic material; In the automobile gear shift process; The wearing and tearing of mounting hole on declutch shift shaft that reduces and the housing, the resistance when reducing gearshift.
In above-mentioned shifting vehicle gearbox shifting fork mechanism; Offer the resigning hole that supplies declutch shift shaft to pass on the described axle sleeve; Described sleeve lining has one or more buckles; Offer shape and position and described buckle groove one to one on the described declutch shift shaft, described buckle can snap in the described groove when axle sleeve is set on the declutch shift shaft.Declutch shift shaft produces slide relative with the mounting hole of housing in automobile gear shift operation, what declutch shift shaft and axle sleeve received mainly is axial force, adopts the buckle of axial distribution and the structure of groove that axle sleeve is fixed on the declutch shift shaft, fixes reliably.
As another kind of scheme, in above-mentioned shifting vehicle gearbox shifting fork mechanism, have the slot to make way that supplies declutch shift shaft to be provided with on the described axle sleeve, described declutch shift shaft is packed in the slot to make way and is connected through fastening piece with the end face of axle sleeve.Only need the corresponding bolt hole of operative position on the end face of axle sleeve and declutch shift shaft, linkage structure is simple, and is easy for installation.
In above-mentioned shifting vehicle gearbox shifting fork mechanism, offer several openings on the outer wall of described axle sleeve.When declutch shift shaft is packed axle sleeve into, declutch shift shaft is inserted in the resigning hole of axle sleeve, when buckle does not snap in the groove fully; The expansion of axle sleeve outer wall, declutch shift shaft can move in axle sleeve swimmingly, after buckle snaps in the groove fully; The axle sleeve outer wall shrinks reduction, and axle sleeve and declutch shift shaft are effectively located.
In above-mentioned shifting vehicle gearbox shifting fork mechanism, the quantity of said buckle is 1～8.Quantity as preferred buckle is 8, and the location of axle sleeve and declutch shift shaft is the most firm.
In above-mentioned shifting vehicle gearbox shifting fork mechanism, described number of openings is 2～8.Number of openings is many more, and the tension force of axle sleeve outer wall is big more, is 8 as preferred number of openings.
In above-mentioned shifting vehicle gearbox shifting fork mechanism, described fastening piece is a bolt.The versatility of bolt is good, and buying is convenient, and cost is lower.
Compared with prior art, the advantage in this shifting vehicle gearbox shifting fork mechanism is:
1, the axle sleeve of this shifting vehicle gearbox shifting fork mechanism adopts nonmetallic material processing, can avoid declutch shift shaft to contact with the direct of metallic material in the mounting hole relative movement, reduces wear the reduction damping.
2, the axle sleeve of this shifting vehicle gearbox shifting fork mechanism is connected through buckle and the declutch shift shaft that circumferentially is distributed in its inwall, and the location is reliable.
3, offer opening on the outer wall of the axle sleeve of this shifting vehicle gearbox shifting fork mechanism, improve the tension force of axle sleeve when installing, be convenient to packing into of declutch shift shaft.
Description of drawings
Fig. 1 is the assembly structure schematic representation of this shifting vehicle gearbox shifting fork mechanism.
Fig. 2 is the main TV structure schematic representation of the axle sleeve of this shifting vehicle gearbox shifting fork mechanism.
Fig. 3 be this shifting vehicle gearbox shifting fork mechanism axle sleeve look up structural representation.
Among the figure, 1, housing; 11, mounting hole; 2, declutch shift shaft; 3, axle sleeve; 31, resigning hole; 32, buckle; 33, opening; 4, shift fork.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
Embodiment one:
This shifting vehicle gearbox shifting fork mechanism is arranged on the housing 1 of speed changer, comprises declutch shift shaft 2, shift fork 4 and axle sleeve 3, the damping when axle sleeve 3 can reduce declutch shift shaft 2 with respect to 11 slips of the mounting hole on the housing 1.
As shown in Figure 1, shift fork 4 is set on the declutch shift shaft 2, and is connected through fastening piece and declutch shift shaft 2.Packing in the mounting hole 11 of reducer shell 1 in the two end part of declutch shift shaft 2, is arranged with an axle sleeve 3 on the declutch shift shaft 2, and axle sleeve 3 is between declutch shift shaft 2 and mounting hole 11, and the outer side surface of axle sleeve 3 contacts with the internal surface of mounting hole 11.In the production and assembling of reality, fastening piece is a bolt.
In the present embodiment, as shown in Figures 2 and 3, the end of axle sleeve 3 offers resigning hole 31, and declutch shift shaft 2 can be located on the axle sleeve 3 through resigning hole 31.The internal surface of axle sleeve 3 is processed with 8 buckles 32, and the position that declutch shift shaft 2 outer side surfaces are corresponding offers the groove that buckle 32 is snapped in.Offer 8 openings 33 on the outer wall of axle sleeve 3, opening 33 is divided into the outer wall of axle sleeve 3 has certain tension force and continuous sheet structure.In the production and course of working of reality, the quantity of buckle 32 and groove can be 1～8, and buckle 32 is many more with groove quantity, and being connected of declutch shift shaft 2 and axle sleeve 3 is firm more; The quantity of draw-in groove can be 2～8, and the quantity of opening 33 is many more, and the tension force of axle sleeve 3 outer walls is big more.
When declutch shift shaft 2 is packed axle sleeve 3 into; Declutch shift shaft 2 is inserted in the resigning hole 31 of axle sleeve 3, when buckle 32 does not snap in the groove fully, the expansion of axle sleeve 3 outer walls; Declutch shift shaft 2 can move in axle sleeve 3 swimmingly; After buckle 32 snapped in the groove fully, axle sleeve 3 outer walls shrank reduction, axle sleeve 3 and declutch shift shaft 2 location.Because selector fork axle 2 produces slide relative with the mounting hole 11 of housing 1 in automobile gear shift operation, what declutch shift shaft 2 and axle sleeve 3 received mainly is axial force, adopts the buckle 32 of axial distribution and the structure of groove that axle sleeve 3 is fixed on the declutch shift shaft 2, fixing reliable.
Embodiment two:
Technological scheme among technological scheme in this instance and the embodiment one is basic identical, and difference is, in the present embodiment, has the slot to make way that supplies declutch shift shaft 2 to be provided with on the axle sleeve 3, and declutch shift shaft 2 is packed in the slot to make way and is connected through fastening piece with the end face of axle sleeve 3.Only need the corresponding bolt hole of operative position on the end face of axle sleeve 3 and declutch shift shaft 2, linkage structure is simple, and is easy for installation.
Specific embodiment described herein only is that the utility model spirit is illustrated.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 the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as housing 1, mounting hole 11, declutch shift shaft 2, axle sleeve 3, resigning hole 31, buckle 32, opening 33, shift fork 4 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (7)
1. shifting vehicle gearbox shifting fork mechanism; Described speed changer comprises the have mounting hole housing (1) of (11), and this shifting fork mechanism is arranged on the speed changer, and this shifting fork mechanism comprises declutch shift shaft (2) and shift fork (4); Described shift fork (4) is fixed on the declutch shift shaft (2) through fastening piece; The two-end part of described declutch shift shaft (2) is characterized in that in the mounting hole (11) of case of transmission (1) at least one end of described declutch shift shaft (2) is fixed with axle sleeve (3); The outer side surface of axle sleeve (3) contacts with the internal surface of mounting hole (11), and described axle sleeve (3) adopts nonmetallic material to process.
2. shifting vehicle gearbox shifting fork mechanism according to claim 1; It is characterized in that; Offer the resigning hole (31) that supplies declutch shift shaft (2) to pass on the described axle sleeve (3); Described axle sleeve (3) inwall has one or more buckles (32), offers shape and position and described buckle (32) groove one to one on the described declutch shift shaft (2), can snap in the described groove when axle sleeve (3) is set in described buckle of last time of declutch shift shaft (2) (32).
3. shifting vehicle gearbox shifting fork mechanism according to claim 1 is characterized in that, has the slot to make way that confession declutch shift shaft (2) is provided with on the described axle sleeve (3), and described declutch shift shaft (2) is packed in the slot to make way and is connected through fastening piece with the end face of axle sleeve (3).
4. shifting vehicle gearbox shifting fork mechanism according to claim 1 and 2 is characterized in that, offers several openings (33) on the outer wall of described axle sleeve (3).
5. shifting vehicle gearbox shifting fork mechanism according to claim 2 is characterized in that, the quantity of described buckle (32) is 1～8.
6. shifting vehicle gearbox shifting fork mechanism according to claim 4 is characterized in that, the quantity of described opening (33) is 2～8.
7. according to claim 1 or 2 or 3 described shifting vehicle gearbox shifting fork mechanisms, it is characterized in that described fastening piece is a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202658794U CN202165588U (en) | 2011-07-26 | 2011-07-26 | Shifting fork mechanism of automobile transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202658794U CN202165588U (en) | 2011-07-26 | 2011-07-26 | Shifting fork mechanism of automobile transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165588U true CN202165588U (en) | 2012-03-14 |
Family
ID=45801414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202658794U Expired - Fee Related CN202165588U (en) | 2011-07-26 | 2011-07-26 | Shifting fork mechanism of automobile transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458103A (en) * | 2018-03-29 | 2018-08-28 | 重庆青山工业有限责任公司 | A kind of manual gear of vehicle selector fork structure |
-
2011
- 2011-07-26 CN CN2011202658794U patent/CN202165588U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458103A (en) * | 2018-03-29 | 2018-08-28 | 重庆青山工业有限责任公司 | A kind of manual gear of vehicle selector fork structure |
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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: 20120314 Termination date: 20130726 |