CN213776328U - Novel shifting fork mechanism of shifting of derailleur - Google Patents
Novel shifting fork mechanism of shifting of derailleur Download PDFInfo
- Publication number
- CN213776328U CN213776328U CN202022450062.6U CN202022450062U CN213776328U CN 213776328 U CN213776328 U CN 213776328U CN 202022450062 U CN202022450062 U CN 202022450062U CN 213776328 U CN213776328 U CN 213776328U
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- guide sleeve
- shifting
- arc
- uide bushing
- fork mechanism
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Abstract
The utility model relates to a novel gear shifting fork shifting mechanism of a transmission, which comprises a first guide sleeve, a second guide sleeve and two shifting forks, wherein both ends of the first guide sleeve and both ends of the second guide sleeve are open and are coaxially distributed and can move along the axial direction; and the two shifting forks are positioned on the same side of the first guide sleeve and the second guide sleeve, and the same end of the two shifting forks is fixedly connected with the deviating end of the first guide sleeve and the deviating end of the second guide sleeve respectively. The utility model has compact structure, wide power transmission range, small volume, light weight and high transmission efficiency, and has the capability of adapting to various limit working conditions; meanwhile, the gear shifting mechanism is stable in the power transmission process, free of noise and good in operation comfort.
Description
Technical Field
The utility model relates to an automobile speed change technical field, concretely relates to novel shift fork mechanism that shifts of derailleur.
Background
The automobile gear-shifting fork-shifting mechanism belongs to key parts in an automobile gearbox, the main function of the gearbox is to realize final movement of an automobile by changing the speed of power transmitted by an engine through the gearbox, the gear-shifting fork-shifting machine plays a role in transmitting gear-shifting force to a synchronizer gear sleeve and a corresponding gear function in the gearbox, an automobile electric control system sends a gear-shifting instruction, and a gear-shifting mechanism in a motor-driven gearbox drives gear-shifting forks at different gears to realize automatic adjustment of the gears, so that the speed-changing function of the gearbox is finally realized. Along with the continuous improvement of requirements on the gear shifting stability, the comfort, the oil saving and the like of the automobile, higher requirements are also put forward on the gear shifting fork mechanism of the gearbox.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a novel shift fork mechanism that shifts of derailleur is provided, aim at solving above-mentioned technical problem.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
a novel gear-shifting fork-shifting mechanism of a transmission comprises a first guide sleeve, a second guide sleeve and two shifting forks, wherein both ends of the first guide sleeve and both ends of the second guide sleeve are open and are coaxially distributed and can move along the axial direction of the first guide sleeve and the second guide sleeve; and the two shifting forks are positioned on the same side of the first guide sleeve and the second guide sleeve, and the same end of the first shifting fork is fixedly connected with the deviating end of the first guide sleeve and the deviating end of the second guide sleeve respectively.
The utility model has the advantages that: when the transmission device is applied, an assembly shaft in the transmission case is inserted into the two guide sleeves, and the two guide sleeves can move along the axial direction of the assembly shaft; during driving, the gear selecting rod is manually operated, a corresponding sensor in the gearbox sends a signal to the control system, the control system receives the corresponding signal and sends a command signal to the gearbox gear shifting tower driving motor, the driving motor drives the gear shifting tower to rotate, and the driving guide sleeve shifts along the assembly shaft, so that the corresponding shifting fork is driven to move to realize gear shifting and speed changing. The utility model has compact structure, wide power transmission range, small volume, light weight and high transmission efficiency, and has the capability of adapting to various limit working conditions; meanwhile, the gear shifting mechanism is stable in the power transmission process, free of noise and good in operation comfort.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, an internally and externally penetrating arc-shaped opening I is arranged in the middle of the guide sleeve I, an internally and externally penetrating arc-shaped opening II is arranged at the position, close to one end of the guide sleeve II, and the arc-shaped opening II is opposite to the arc-shaped opening I; one end of the first guide sleeve extends into the first arc-shaped opening, and one end of the first guide sleeve extends into the second arc-shaped opening; the same ends of the two shifting forks are fixedly connected with the other end of the first guide sleeve and the other end of the second guide sleeve respectively.
The beneficial effect who adopts above-mentioned further scheme is that arc opening one on the uide bushing one cooperates with arc opening two on the uide bushing two, prolongs the uide bushing and assembles the cooperation length of axle, dodges each other, avoids influencing each other with other parts, has improved the direction precision.
Further, sliding sleeves are fixedly and coaxially arranged in the two ends of the first guide sleeve and the two ends of the second guide sleeve respectively in a fixed mode.
The beneficial effects of adopting above-mentioned further scheme are that the sliding sleeve cover is located the assembly epaxial in the gearbox during installation, can avoid the rigid contact between uide bushing one and uide bushing two and the assembly axle through the sliding sleeve, ensure that the process of shift fork transmission power of shifting is steady, effectively reduce sliding friction moreover, the noiselessness, operating comfort is good.
Furthermore, the gear shifting device further comprises two gear shifting supports which are matched with the power part respectively, and the same ends of the two gear shifting supports are fixedly connected with the first guide sleeve and the second guide sleeve respectively.
The transmission shaft has the beneficial effects that the two gear shifting supports are matched with the power part in the transmission case, and the power part drives the two gear shifting supports to drive the guide sleeve I and the guide sleeve II to axially slide on the assembly shaft, so that the shifting fork is driven to move to shift.
Furthermore, two the support of shifting all is the arc structure, its one end respectively with uide bushing one with uide bushing two fixed connection, the other end overlaps the setting each other, and is equipped with respectively on it and runs through and the mouth of dialling that communicates each other.
The gear shifting bracket has the beneficial effects that the structure is simple, the design is reasonable, and the power part in the gearbox drives the gear shifting bracket to drive the first guide sleeve and the second guide sleeve to axially slide on the assembly shaft, so that the shifting fork is driven to move to shift gears.
Furthermore, reinforcing plates are fixedly connected to the opposite sides of the two shifting forks respectively.
The beneficial effects of adopting above-mentioned further scheme are that increased the rigidity of shift fork through the reinforcing plate, avoid the shift fork to take place to warp or fracture under high load, prolong its life, practice thrift the cost.
Furthermore, at least one shifting fork and/or at least one reinforcing plate are respectively provided with a square hole and a clamping groove for connecting other components.
The beneficial effect who adopts above-mentioned further scheme is square hole and draw-in groove and other part draw-in grooves overlap joint, increases the stability of shift fork and other part installations, guarantees the postweld size precision.
Furthermore, two all fixedly connected with connecting plate on the shifting fork, the one end of connecting plate respectively with uide bushing one or uide bushing two fixed connection.
The adoption of the further scheme has the advantages that the rigidity of the shifting fork is increased through the connecting plate, the shifting fork is prevented from deforming or breaking under high load, the service life of the shifting fork is prolonged, and the cost is saved; further increasing the stability of the fork.
Furthermore, two sides of the other end of each shifting fork are respectively fixedly sleeved with two plastic pins at two sides.
The beneficial effect who adopts above-mentioned further scheme is through the contact of both sides plastics foot with the tooth cover on the gearbox, avoids the rigid contact of shift fork and tooth cover for the process of transmission power of shifting is more steady, and noiselessness moreover, and operating comfort is good.
Furthermore, the middle part of the other end of each shifting fork is fixedly connected with a middle plastic pin.
The beneficial effect who adopts above-mentioned further scheme is through the contact of middle plastics foot with the tooth cover on the gearbox, avoids the rigid contact of shift fork and tooth cover for the process of transmission power of shifting is more steady, and noiselessness moreover, and operating comfort is good.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an exploded view of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the gear shifting device comprises a first guide sleeve, a second guide sleeve, a third guide sleeve, a fourth guide sleeve, a fifth guide sleeve, a sixth guide sleeve, a fifth guide sleeve, a fourth guide sleeve, a fifth guide sleeve, a fourth guide sleeve, a fifth guide sleeve, a sixth guide sleeve, a fifth guide sleeve.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, the utility model provides a novel gear shifting fork mechanism of a transmission, which comprises a first guide sleeve 1, a second guide sleeve 2 and two shifting forks 3, wherein both ends of the first guide sleeve 1 and both ends of the second guide sleeve 2 are open and coaxially distributed and can move along the axial direction; two shift forks 3 all lie in the same one side of uide bushing one 1 and uide bushing two 2, and its same end respectively with uide bushing one 1 and the fixed connection that deviates from of uide bushing two 2. When the transmission device is applied, an assembly shaft in the transmission case is inserted into the two guide sleeves, and the two guide sleeves can move along the axial direction of the assembly shaft; during driving, the gear selecting rod is manually operated, a corresponding sensor in the gearbox sends a signal to the control system, the control system receives the corresponding signal and sends a command signal to the gearbox gear shifting tower driving motor, the driving motor drives the gear shifting tower to rotate, and the driving guide sleeve shifts along the assembly shaft, so that the corresponding shifting fork is driven to move to realize gear shifting and speed changing. The utility model has compact structure, wide power transmission range, small volume, light weight and high transmission efficiency, and has the capability of adapting to various limit working conditions; meanwhile, the gear shifting mechanism is stable in the power transmission process, free of noise and good in operation comfort.
Among the two shifting forks 3, the shifting fork 3 fixedly connected with the first guide sleeve 1 is a four-gear shifting fork, the shifting fork 3 fixedly connected with the second guide sleeve 2 is a three-gear shifting fork, and the two shifting forks are arranged in the gearbox side by side. In addition, fork feet on two sides of the other end of the other shifting fork 3 are respectively inserted into gear shifting grooves of synchronizer gear sleeves of corresponding gears in the gearbox.
Example 1
On the basis of the structure, in the embodiment, the middle part of the guide sleeve I1 is provided with an internally and externally penetrating arc-shaped opening I4, the part, close to one end of the guide sleeve II 2, of the guide sleeve II is provided with an internally and externally penetrating arc-shaped opening II 5, and the arc-shaped opening II 5 is arranged opposite to the arc-shaped opening I4; one end of the guide sleeve II 2 extends into the arc-shaped opening I4 from the arc-shaped opening II 5, and one end of the guide sleeve I1 extends into the other end of the guide sleeve II 2; the same ends of the two shifting forks 3 are fixedly connected with the other end of the first guide sleeve 1 and the other end of the second guide sleeve 2 respectively, and a welding mode is generally adopted. The first arc opening 4 on the first guide sleeve 1 is matched with the second arc opening 5 on the second guide sleeve 2, the matching length of the guide sleeve and the assembling shaft is prolonged, mutual avoidance is achieved, mutual influence with other parts is avoided, and the guide precision is improved.
In addition to the above embodiments, one end of the second guiding sleeve 2 extends into the first arc-shaped opening 4, and one end of the first guiding sleeve 1 extends into the second arc-shaped opening 5.
Example 2
On the basis of the first embodiment, in the present embodiment, sliding sleeves 6 are respectively and fixedly coaxially installed in two ends of the first guiding sleeve 1 and two ends of the second guiding sleeve 2, and each sliding sleeve 6 is fixed in a corresponding guiding sleeve in a manner that can be conceived by those skilled in the art. During the installation, the sliding sleeve 6 cover is located the assembly in the gearbox epaxial, can avoid the rigid contact between uide bushing 1 and uide bushing two 2 and the assembly axle through sliding sleeve 6, ensures that the process of shift fork transmission power of shifting is steady, effectively reduces sliding friction moreover, and the noiselessness, operating comfort is good.
The sliding sleeve 6 is made of a metal material and a polytetrafluoroethylene coating, the base material is the metal material, the polytetrafluoroethylene coating is attached to the surface of the metal material, the polytetrafluoroethylene has good lubricating property and wear resistance, the friction of the assembling shaft of the gearbox is small, the sliding is smooth, and the performance of the gearbox is improved.
Example 3
On the basis of the structure, the gear shifting device further comprises two gear shifting brackets 7 which are respectively matched with the power part, and the same ends of the two gear shifting brackets 7 are respectively fixedly connected with the first guide sleeve 1 and the second guide sleeve 2 in a welding mode. Through the cooperation of the two gear shifting brackets 7 and the power part in the gearbox, the power part drives the two gear shifting brackets 7 respectively to drive the first guide sleeve 1 and the second guide sleeve 2 to axially slide on the assembly shaft, so that the shifting fork 3 is driven to move to shift gears.
Example 4
On the basis of the third embodiment, in this embodiment, the two shift brackets 7 are both arc-shaped structures, one end of each shift bracket is fixedly connected with the first guide sleeve 1 and the second guide sleeve 2, the other ends of the shift brackets are overlapped with each other, and the shift openings 8 which penetrate through and are communicated with each other are formed in the shift brackets. This dial mouthful 8 and the gear change tower joint in the gearbox, simple structure, reasonable in design, power component drive shift bracket 7 in the gearbox drives uide bushing 1 and uide bushing two 2 and axially slides on the assembly axle to drive shift fork 3 and remove and shift.
When in neutral, the two forks 8 are completely superposed.
During the practical application, stir one side of arbitrary one support 7 of shifting through the gear change tower in the gearbox to drive uide bushing and shift fork 3 through support 7 of shifting and remove.
Example 5
On the basis of the above structure, in the present embodiment, the reinforcing plates 9 are fixedly connected to the opposite sides of the two forks 3, respectively, and are usually connected by welding. The rigidity of the shifting fork 3 is increased through the reinforcing plate 9, the shifting fork 3 is prevented from deforming or breaking under high load, the service life of the shifting fork is prolonged, and the cost is saved.
The two ends of the two frame bodies are respectively provided with an arc end and a straight end, the arc ends are used for interlocking with the gear shifting tower of the gearbox, and the straight ends are connected with the guide sleeve to drive the guide sleeve to move.
Example 6
On the basis of the fifth embodiment, in the fifth embodiment, at least one shifting fork 3 and/or at least one reinforcing plate 9 are/is respectively provided with a square hole and a clamping groove for connecting other components, the square hole and the clamping groove are overlapped with the clamping grooves of other components, the mounting stability of the shifting fork 3 and other components is improved, and the size precision of the welded package is improved.
Example 7
On the basis of the above structure, in this embodiment, the two shifting forks 3 are both fixedly connected with a connecting plate 10, and a welding manner is usually adopted; one end of the connecting plate 10 is fixedly connected with the first guide sleeve 1 or the second guide sleeve 2 respectively, and generally adopts a welding mode. The rigidity of the shifting fork 3 is increased through the connecting plate 10, so that the shifting fork 3 is prevented from deforming or breaking under high load, the service life of the shifting fork is prolonged, and the cost is saved; while further increasing the stability of the fork 3.
Example 8
On the basis of the above structure, in the present embodiment, two sides of the other end of each shifting fork 3 are respectively fixedly sleeved with two side plastic legs 11, and each two side plastic leg 11 is fixed on the shifting fork 3 by a manner that can be conceived by those skilled in the art, for example, by gluing. Through the contact of the plastic feet 11 on the two sides and the gear sleeve on the gearbox, the rigid contact of the shifting fork 3 and the gear sleeve is avoided, so that the process of transferring the shifting force is stable, no noise is generated, and the operation comfort level is good.
Example 9
On the basis of the above structure, in the present embodiment, a middle plastic leg 12 is fixedly connected to the middle of the other end of each shift fork 3, and each middle plastic leg 12 is fixed on the shift fork 3 by means that will occur to those skilled in the art, such as gluing. Through the contact of middle plastics foot 12 and the tooth cover on the gearbox, avoid the rigid contact of shift fork 3 and tooth cover for the process of transmission power of shifting is more steady, and noiselessness is good moreover, and operating comfort is good.
The middle plastic foot 12 and the two side plastic feet 11 are made of plastic materials and wear-resistant materials, such as rubber, polyurethane, polyethylene and the like, and have certain plasticity and good wear resistance, so that the production cost is saved.
In addition to the above embodiments, the entire fork leg may be partially coated with a layer of wear-resistant plastic material by injection molding, but this is more costly.
The working principle of the utility model is as follows:
during driving, the gear selecting rod is manually operated, a corresponding sensor in the gearbox sends a signal to the control system, the control system receives the corresponding signal and sends a command signal to the gearbox gear shifting tower driving motor, the driving motor drives the gear shifting tower to rotate, the gear shifting bracket 7 and the guide sleeve are driven to shift along the assembly shaft, and therefore the corresponding shifting fork 3 is driven to move to achieve gear shifting and speed changing. It should be noted that the utility model relates to a plunger pump (model J-X), gearbox shift tower and control system (model TC-SCR) all adopt prior art to above-mentioned each part is connected with the control system electricity, and the control circuit between control system and each part is prior art.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a novel shift fork mechanism that shifts of derailleur which characterized in that: the device comprises a first guide sleeve (1), a second guide sleeve (2) and two shifting forks (3), wherein both ends of the first guide sleeve (1) and both ends of the second guide sleeve (2) are open and are coaxially distributed and can move along the axial direction of the first guide sleeve and the second guide sleeve; two shift fork (3) all are located the same one side of uide bushing one (1) with uide bushing two (2), and its same end respectively with uide bushing one (1) with the fixed connection that deviates from of uide bushing two (2).
2. The transmission shifter fork mechanism of claim 1, wherein: the middle part of the first guide sleeve (1) is provided with a first internally and externally penetrating arc-shaped opening (4), a second internally and externally penetrating arc-shaped opening (5) is arranged at the position, close to one end of the second guide sleeve (2), of the second guide sleeve, and the second arc-shaped opening (5) is opposite to the first arc-shaped opening (4); one end of the second guide sleeve (2) extends into the first arc-shaped opening (4), and one end of the first guide sleeve (1) extends into the second arc-shaped opening (5); the same ends of the two shifting forks (3) are fixedly connected with the other end of the first guide sleeve (1) and the other end of the second guide sleeve (2) respectively.
3. The transmission shifter fork mechanism of claim 2, wherein: sliding sleeves (6) are respectively fixedly and coaxially fixedly arranged in the two ends of the first guide sleeve (1) and the two ends of the second guide sleeve (2).
4. A transmission shift fork mechanism according to any one of claims 1 to 3, characterized in that: the gear shifting device is characterized by further comprising two gear shifting supports (7) which are matched with the power part respectively, wherein the same end of each gear shifting support (7) is fixedly connected with the first guide sleeve (1) and the second guide sleeve (2) respectively.
5. The transmission shifter fork mechanism of claim 4, wherein: two shift support (7) all are the arc structure, its one end respectively with uide bushing one (1) with uide bushing two (2) fixed connection, the other end overlaps the setting each other, and is equipped with respectively on it and runs through and group mouth (8) that communicate each other.
6. A transmission shift fork mechanism according to any one of claims 1 to 3, characterized in that: and reinforcing plates (9) are fixedly connected to the opposite sides of the two shifting forks (3) respectively.
7. The transmission shifter fork mechanism of claim 6, wherein: at least one shifting fork (3) and/or at least one reinforcing plate (9) are respectively provided with a square hole and a clamping groove for connecting other components.
8. A transmission shift fork mechanism according to any one of claims 1 to 3, characterized in that: two equal fixedly connected with connecting plate (10) on shift fork (3), the one end of connecting plate (10) respectively with uide bushing one (1) or uide bushing two (2) fixed connection.
9. A transmission shift fork mechanism according to any one of claims 1 to 3, characterized in that: two sides of the other end of each shifting fork (3) are respectively fixedly sleeved with two plastic pins (11).
10. A transmission shift fork mechanism according to any one of claims 1 to 3, characterized in that: the middle part of the other end of each shifting fork (3) is fixedly connected with a middle plastic pin (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022450062.6U CN213776328U (en) | 2020-10-29 | 2020-10-29 | Novel shifting fork mechanism of shifting of derailleur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022450062.6U CN213776328U (en) | 2020-10-29 | 2020-10-29 | Novel shifting fork mechanism of shifting of derailleur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213776328U true CN213776328U (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022450062.6U Active CN213776328U (en) | 2020-10-29 | 2020-10-29 | Novel shifting fork mechanism of shifting of derailleur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213776328U (en) |
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2020
- 2020-10-29 CN CN202022450062.6U patent/CN213776328U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211029 Address after: 430000 No. 109, Quanquan Fourth Road, Wuhan Economic Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Fanzhou fine blanking Co.,Ltd. Address before: 430000, No.8, Jinlong Road, Wuhan Economic and Technological Development Zone, Hubei Province Patentee before: WUHAN FANZHOU MACHINERY MANUFACTURING CO.,LTD. |
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| TR01 | Transfer of patent right |