CN202468968U - Declutch shift shaft self-locking and interlocking mechanism for gearbox - Google Patents
Declutch shift shaft self-locking and interlocking mechanism for gearbox Download PDFInfo
- Publication number
- CN202468968U CN202468968U CN2012200173543U CN201220017354U CN202468968U CN 202468968 U CN202468968 U CN 202468968U CN 2012200173543 U CN2012200173543 U CN 2012200173543U CN 201220017354 U CN201220017354 U CN 201220017354U CN 202468968 U CN202468968 U CN 202468968U
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- self
- locking
- interlocking
- declutch shift
- shift shaft
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Abstract
The utility model discloses a declutch shift shaft self-locking and interlocking mechanism for a gearbox. The mechanism comprises a plurality of declutch shift shafts which are arranged in parallel and penetrate through a gearbox shell, wherein corresponding neutral gear circular grooves are formed on the declutch shift shafts respectively; self-locking grooves positioned on the upper parts of the declutch shift shafts are formed on the two sides of the neutral gear circular grooves; a self-locking and interlocking block is arranged on the outer side wall of the gearbox shell; a plurality of declutch shift shaft holes through which the declutch shift shafts can pass are formed in the self-locking and interlocking block; and self-locking devices matched with the self-locking grooves and interlocking devices matched with the neutral gear circular grooves are arranged on the self-locking and interlocking block. According to the declutch shift shaft self-locking and interlocking mechanism for the gearbox, a self-locking and interlocking device which is arranged inside the gearbox shell previously is moved to the outside of the gearbox shell, so that complicated self-locking and interlocking holes are machined in the gearbox shell, machining complexity and rejection rates are reduced, and the tightness of the gearbox shell is improved.
Description
Technical field
The utility model relates to the gearbox technical field, relates in particular to self-locking of a kind of speed-changing box pulling fork axle and mutual interlocking gear.
Background technique
Self-locking of existing speed-changing box pulling fork axle and interlocking principle are roughly the same, and its self-lock mechanism is the top deep hole processing that on the inwall of gear box casing, is positioned at declutch shift shaft, are provided with self-locking spring and self-locking steel ball in the deep hole; At every declutch shift shaft three grooves of one side processing facing to steel ball, middle groove is the neutral groove simultaneously, and the groove of both sides then is the self-locking groove; The self-locking steel ball is pressed in the corresponding recesses of declutch shift shaft by self-locking spring, plays the effect of locking gear, prevents self shifter and automatic off-gear; When needs were shifted gears, when the driver put on axial force on the declutch shift shaft and overcomes self-locking spring and put on the self-lock force of self-locking steel ball, the self-locking steel ball just overcame the precompression of self-locking spring and rises; Declutch shift shaft can be moved axially; When self-locking steel ball and self-locking groove to correct time, steel ball is pressed in the self-locking groove, plays the effect of self-locking; And the interlocking principle between the declutch shift shaft is that the interlocking groove is set respectively on the relative side of declutch shift shaft; The interlocking hole is being set between the interlocking groove on the gear box casing; Interlocking steel ball or interlocking plunger are set in the interlocking hole then, and when a declutch shift shaft was put into gear, interlocking steel ball or interlocking plunger just were squeezed in its adjacent interlocking groove; Other declutch shift shaft can not be moved axially, use thereby play interlocked.
But above-mentioned self-locking and mutual interlocking gear exist several problems: the one, need place self-locking spring and self-locking steel ball at gearbox machined deep hole, and strengthened difficulty of processing; The 2nd, processing interlocking hole can influence the sealing of gear box casing on gear box casing;, assembling need to use Sealing (like the bowl-type patch etc.) to seal after accomplishing; Strengthen the complexity of assembling, also increased the component kind of gearbox assembling simultaneously.
The model utility content
The utility model technical problem to be solved is: self-locking of a kind of speed-changing box pulling fork axle and mutual interlocking gear are provided, can solve the problem of processed complex and gearbox sealing.
For solving the problems of the technologies described above; The technological scheme of the utility model is: self-locking of speed-changing box pulling fork axle and mutual interlocking gear; Comprise the some declutch shift shafts that laterally arrange and pass gear box casing; Have corresponding neutral annular groove on the said declutch shift shaft, the top that the both sides of said neutral annular groove are positioned at said declutch shift shaft has the self-locking groove, and the outer side wall of said gear box casing is provided with the self-locking interlocking block; Said self-locking interlocking block is provided with the some shift fork axis holes that supply declutch shift shaft to pass, and said self-locking interlocking block is provided with self-locking device that matches with said self-locking groove and the interlock that matches with said neutral annular groove.
As a preferred implementation; Said self-locking device comprises the some self-locking deep holes that are arranged on the said self-locking interlocking block; Said self-locking deep hole is corresponding one by one with the shift fork axis hole and be interconnected, and is provided with the self-locking steel ball in the said self-locking deep hole and is used for said self-locking steel ball is pressed against the self-locking spring on the said self-locking groove.
As a preferred implementation; Said interlock comprises the some interlocking through holes that are arranged on the said self-locking interlocking block; Said interlocking through hole is communicated with two adjacent shift fork axis holes, is provided with in the said interlocking through hole to be used for the interlocking steel ball that matches with said neutral annular groove.
After having adopted technique scheme; The beneficial effect of the utility model is: owing on the outer side wall of gear box casing, be provided with the self-locking interlocking block; Declutch shift shaft passes the self-locking interlocking block; Simultaneously on this self-locking interlocking block, be provided with self-locking device and interlock, avoided that deep hole processing plays self-locking action on the inwall of gear box casing, also not be used on the gear box casing processing interlocking hole simultaneously and play interlocked and use; So just reduced the complexity of processing and assembling, and the sealing of gear box casing can not be affected yet.
Owing on the self-locking interlocking block, be provided with self-locking deep hole corresponding one by one with the shift fork axis hole and that be interconnected, in the self-locking deep hole, be provided with the self-locking steel ball and be used for the self-locking steel ball is pressed against the self-locking spring on the self-locking groove, when the neutral state; The self-locking steel ball relies in the neutral annular groove; When needs were shifted gears, the driver overcame the pressure of self-locking spring to the self-locking steel ball through declutch shift shaft being applied axial force, and the self-locking steel ball is extruded in the neutral annular groove; Thereby declutch shift shaft can be moved axially; When declutch shift shaft moves to self-locking steel ball and self-locking groove to correct time, steel ball is pressed in the self-locking groove, plays the effect of self-locking.
Owing on the self-locking interlocking block, be provided with the interlocking through hole that is communicated with adjacent shift fork axis hole; In the interlocking through hole, be provided with simultaneously and be used for the interlocking steel ball that matches with the neutral annular groove; Then the driver is when putting into gear, and the declutch shift shaft corresponding with it produces and move axially, and the interlocking steel ball clamp-oned in the neutral annular groove of adjacent declutch shift shaft; Move axially thereby the declutch shift shaft that is adjacent can not be produced, play the effect of interlocking.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the cross-sectional schematic of A-A direction among Fig. 1;
Among the figure: 1. gear box casing; 2. declutch shift shaft; 21. neutral annular groove; 22. self-locking groove; 3. self-locking interlocking block; 31. self-locking deep hole; 311. self-locking steel ball; 312. self-locking spring, 32. interlocking through holes; 321. interlocking steel ball; 4. pretension screw; 5. lock nut; 6. bolt.
Embodiment
Shown in Fig. 1 and Fig. 2 are common; Parallelly on the said gear box casing 1 pass some declutch shift shafts 2, have neutral annular groove 21 on the said declutch shift shaft 2, the top that is positioned at declutch shift shaft 2 in the both sides of said neutral annular groove 21 has self-locking groove 22; Certainly; Only show two declutch shift shafts 2 among the figure in order to explain the utility model, when gearbox comprised many declutch shift shafts, its principle was identical therewith; Thereby operations such as completion is put into gear, gearshift that said declutch shift shaft 2 can move along its axis, these are the known technology in the present technique field, repeat no more at this.
On the outer side wall of said gear box casing 1, be fixed with self-locking interlocking block 3 through bolt 6; Said self-locking interlocking block 3 is provided with and said declutch shift shaft 2 shift fork axis hole one to one; Said declutch shift shaft 2 passes from the shift fork axis hole, on said self-locking interlocking block 3, is provided with self-locking device that matches with said self-locking groove 22 and the interlock that matches with said neutral annular groove 21.
Said self-locking device comprises the self-locking deep hole 31 that is opened on the said self-locking interlocking block 3; Said self-locking deep hole 31 is corresponding one by one with the shift fork axis hole and be interconnected; In said self-locking deep hole 31, be provided with self-locking steel ball 311 and be used for said self-locking steel ball 311 is pressed against the self-locking spring 312 on the said self-locking groove 22; Can a pretension screw 4 be set at the place, aperture of said self-locking deep hole 31 here; Said self-locking spring 312 is relied on the pretension screw 4, also can on said pretension screw 4, add a lock nut 5 simultaneously and prevent that becoming flexible from appearring in pretension screw 4; Move along its axis self-locking groove 22 when aliging at said declutch shift shaft 2 with self-locking deep hole 31; Said self-locking spring 312 can be pressed into self-locking steel ball 311 in the self-locking groove 22; Declutch shift shaft 2 is played certain axial restraint effect, i.e. the function of self-locking is when having only the axial force that said declutch shift shaft 2 is applied as the driver to overcome self-locking spring 312 to put on the self-lock force on the self-locking steel ball 311; Self-locking steel ball 311 just overcomes the pressure of self-locking spring 312 and rises; Declutch shift shaft 2 can be moved axially, when self-locking steel ball 311 once more with 22 pairs of correct time of self-locking groove, self-locking steel ball 311 is pressed in the self-locking groove 22 once more; Play the effect of self-locking, prevent the phenomenon of automatic off-gear.
Said interlock comprises the interlocking through hole 32 that is opened on the said self-locking interlocking block 3; Said interlocking through hole 32 is communicated with two adjacent shift fork axis holes, in said interlocking through hole 32, is provided with interlocking steel ball 321, when said declutch shift shaft 2 is in neutral gear position; Be that said self-locking steel ball 311 is when being positioned at said neutral annular groove 21; Said interlocking steel ball 321 also is positioned at neutral annular groove 21, and when wherein declutch shift shaft 2 generations moved axially, said interlocking steel ball 321 just was extruded in the neutral annular groove 21 of this declutch shift shaft 2; Be squeezed into simultaneously in the neutral annular groove 21 of adjacent declutch shift shaft 2; Make adjacent declutch shift shaft 2 can not produce axial moving, thereby play the effect of interlocking, prevent self-shifting phenomenon.
This speed-changing box pulling fork axle self-locking and mutual interlocking gear are simple in structure; Move to the outside of gear box casing with being installed on the inner self-locking interlock of gear box casing originally, avoided the self-locking interlocking hole of processed complex on gear box casing, reduced the complexity and the reject rate of processing; Also improved the sealing of gear box casing; Simultaneously, can self-locking and mutual interlocking gear be assembled separately during assembling, improve manufacturing efficiency.
The utility model is not limited to above-mentioned embodiment, and all are based on the technical conceive of the utility model, and the structural improvement of having done all falls among the protection domain of the utility model.
Claims (5)
1. self-locking of speed-changing box pulling fork axle and mutual interlocking gear; Comprise the some declutch shift shafts that laterally arrange and pass gear box casing; Have corresponding neutral annular groove on the said declutch shift shaft; The top that the both sides of said neutral annular groove are positioned at said declutch shift shaft has the self-locking groove; It is characterized in that: the outer side wall of said gear box casing is provided with the self-locking interlocking block, and said self-locking interlocking block is provided with the some shift fork axis holes that supply declutch shift shaft to pass, and said self-locking interlocking block is provided with self-locking device that matches with said self-locking groove and the interlock that matches with said neutral annular groove.
2. speed-changing box pulling fork axle as claimed in claim 1 self-locking and mutual interlocking gear; It is characterized in that: said self-locking device comprises the some self-locking deep holes that are arranged on the said self-locking interlocking block; Said self-locking deep hole is corresponding one by one with the shift fork axis hole and be interconnected, and is provided with the self-locking steel ball in the said self-locking deep hole and is used for said self-locking steel ball is pressed against the self-locking spring on the said self-locking groove.
3. speed-changing box pulling fork axle as claimed in claim 1 self-locking and mutual interlocking gear; It is characterized in that: said interlock comprises the some interlocking through holes that are arranged on the said self-locking interlocking block; Said interlocking through hole is communicated with two adjacent shift fork axis holes, is provided with in the said interlocking through hole to be used for the interlocking steel ball that matches with said neutral annular groove.
4. speed-changing box pulling fork axle as claimed in claim 2 self-locking and mutual interlocking gear; It is characterized in that: the place, aperture of said self-locking deep hole is provided with the pretension screw that matches with said self-locking deep hole; One end of said self-locking spring relies on the said pretension screw, and said pretension screw is provided with the lock nut that prevents that it is loosening.
5. like claim 1 to 4 described any self-locking of speed-changing box pulling fork axle and mutual interlocking gear, it is characterized in that: said self-locking interlocking block is connected with said gear box casing bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200173543U CN202468968U (en) | 2012-01-15 | 2012-01-15 | Declutch shift shaft self-locking and interlocking mechanism for gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200173543U CN202468968U (en) | 2012-01-15 | 2012-01-15 | Declutch shift shaft self-locking and interlocking mechanism for gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468968U true CN202468968U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200173543U Expired - Lifetime CN202468968U (en) | 2012-01-15 | 2012-01-15 | Declutch shift shaft self-locking and interlocking mechanism for gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468968U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537339A (en) * | 2012-01-15 | 2012-07-04 | 福田雷沃国际重工股份有限公司 | Self-locking and interlocking mechanism for shifting fork shafts of gearbox |
| CN102962724A (en) * | 2012-10-24 | 2013-03-13 | 荣成锻压机床有限公司 | Gear stabilizing device of vertical vehicle gearbox |
| CN109916268A (en) * | 2019-04-04 | 2019-06-21 | 哈尔滨工业大学 | A kind of underwater sediment(s) thickness sounding gear and its application method |
-
2012
- 2012-01-15 CN CN2012200173543U patent/CN202468968U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537339A (en) * | 2012-01-15 | 2012-07-04 | 福田雷沃国际重工股份有限公司 | Self-locking and interlocking mechanism for shifting fork shafts of gearbox |
| CN102962724A (en) * | 2012-10-24 | 2013-03-13 | 荣成锻压机床有限公司 | Gear stabilizing device of vertical vehicle gearbox |
| CN109916268A (en) * | 2019-04-04 | 2019-06-21 | 哈尔滨工业大学 | A kind of underwater sediment(s) thickness sounding gear and its application method |
| CN109916268B (en) * | 2019-04-04 | 2021-07-20 | 哈尔滨工业大学 | Underwater sediment thickness depth measurement device and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261206 Beihai South Road, Fangzi District, Shandong, No. 192, No. Patentee after: LOVOL HEAVY INDUSTRY CO., LTD. Address before: 261206 Beihai South Road, Fangzi District, Shandong, No. 192, No. Patentee before: Futian Leiwo International Heavy Industry Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |