CN203322246U - Positioning mechanism for gears of automobile transmission - Google Patents
Positioning mechanism for gears of automobile transmission Download PDFInfo
- Publication number
- CN203322246U CN203322246U CN2013202340282U CN201320234028U CN203322246U CN 203322246 U CN203322246 U CN 203322246U CN 2013202340282 U CN2013202340282 U CN 2013202340282U CN 201320234028 U CN201320234028 U CN 201320234028U CN 203322246 U CN203322246 U CN 203322246U
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- main part
- select
- limit pin
- pin
- claw
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Abstract
The utility model discloses a positioning mechanism for gears of an automobile transmission in the reversing transmission device control field. The positioning mechanism comprises a limiting pin, an operation cover, a gear selection and change shaft, a gear selection and change limiting pin and a gear selection and change cam, wherein the gear selection and change cam is fixed on the gear selection and change shaft; the gear selection and change shaft and the gear selection and change cam are rotationally arranged in a central hole of the operation cover; the gear selection and change limiting pin is pressed and mounted in the operation cover; a pin hole is formed in the gear selection and change cam; and an installation hole is formed in the operation cover. According to the position mechanism, positions of the limiting pin and the operation cover are pulled or pressed, and lock and release of the gears of the positioning of the transmission are realized. The mechanism has the advantages as follows: the mechanism is simple in structure, safe and reliable; and under the condition that no control devices are used, the accurate positioning of the gears of the transmission is realized.
Description
Technical field
The utility model relates to a kind of device of reverse drive gear control field, while specifically on a kind of car load, speed changer being installed, for accurately locating the positioning means of automotive transmission gear.
Background technique
Nowadays, automobile has become the traffic tool indispensable in people's daily life and industrial and agricultural production, and automobile gearbox is being played the part of very important effect in the automobile power assembly field.And when speed changer is installed on car load, due to the gear that can't accurately locate the speed changer place, often easily occur during test run that vehicle accelerates to advance or vehicle accelerates to retreat, security incident so extremely easily occurs.Therefore, before speed changer is installed on car load, need to increase the mechanism that can accurately locate Transmission gear.
Through the retrieval to prior art, find, Chinese patent literature CN202451811, open day 2012-09-26, put down in writing a kind of shifting device of automotive transmission, automotive transmission comprises housing and is located in the shifting axle in housing, this shifting device is arranged between shifting axle and housing, comprise that shifting refers to and the block selecting locating stud, described shifting fingerstall is established and is fixed on the shifting axle, on referring to, shifting offers some block selecting self-locking grooves, described block selecting locating stud one end is fixed on housing, the block selecting locating stud the other end can act in the block selecting self-locking grooves that shifting refers to, and realize the block selecting self-locking, described shifting refers to also be provided with the self-locking mechanism that can realize shifting axle gearshift self-locking.But the location when location of the prior art is limited to shifting, and complex structure, amount of parts is more, takes up room larger, is difficult to really apply in actual production.Its two, this technological orientation is only applicable to the speed changer of certain form, does not possess certain versatility.Its three, the accurate problem of the gear at speed changer place, location that this technology can not solve car load while installing.
The model utility content
The utility model, for the prior art above shortcomings, provides a kind of positioning means of automotive transmission gear, and this mechanism structure is simple, easy and simple to handle, be applicable to various forms of speed changers.
The utility model is achieved through the following technical solutions, the utility model comprises: position limit pin, manipulation are covered, select shift shaft, are selected the gearshift limit pin and select shifting cam, wherein: select shifting cam to be fixed in and select on shift shaft, select shift shaft and select shifting cam to rotate and be arranged in the center hole of handling lid, select the gearshift limit pin to press-fit in handling lid, select on shifting cam and offer pin-and-hole, manipulation covers and offers mounting hole;
Described position limit pin comprises: be positioned at rear end and for being pressed into or extracting the operation unit of position limit pin, be positioned at the positioning part and the main part that is positioned at middle part of front end, wherein: locking is matched to realize with selecting the pin-and-hole that shifting cam is offered in positioning part, main part is round column structure and covers with manipulation the mounting hole formation Spielpassung of offering, the front end of main part is provided with and covers the snap lock locking mechanism that inwall matches with handling, and the neutral position of main part is provided with sealing configuration and overflows mounting hole to prevent lubricant oil.
When Transmission gear is accurately located, depress operation unit, the positioning part of front end is pressed into the pin-and-hole that selects shifting cam and locks with realization; While extracting position limit pin, positioning part breaks away from the pin-and-hole of shifting cam, and sealing configuration also breaks away from the mounting hole of handling lid, and the snap lock locking mechanism cover inwall and matches with handling, and its objective is and prevents from covering because misoperation breaks away from manipulation fully when extracting position limit pin.
Described snap lock locking mechanism comprises: the claw that end is connected with main part and be positioned at axially inboard groove of claw, wherein: the head end of claw is provided with radial protrusion structure, the side that should give prominence to structure is the vertical plane contacted with the inwall of handling lid, and opposite side is inclined-plane.
The quantity of described snap lock locking mechanism is at least 1, when be 2 or when more centered by symmetry be evenly distributed.
The height of described groove is more than or equal to the height of claw.
When position limit pin is pressed into the mounting hole of handling lid, bullet being contained in groove under claw.
Described sealing configuration is the annular groove that cover that on main part, hoop is offered has O type circle.
The quantity with corresponding O type circle of described annular groove is at least 1.
Described main part offers some along the circumferential direction equally distributed rectangle grooves in the both sides of sealing configuration.The purpose of offering rectangle groove is for preventing that main part from producing distortion because of inhomogeneous cooling.
The outer dia of described main part is greater than the outside dimensions of positioning part.
Described operation unit is disc-shaped structure; Positioning part is cylindrical structure.
180 ° of corresponding surfaces of the described pin-and-hole that selects shifting cam are the neutral position between a grade and second gear in king's word groove.
The utility model, by drawing, press position limit pin and handling the position of covering place, is realized locking and the release of Transmission gear.This device has simple in structure, safe and reliable and can be in the situation that do not utilize any control gear to realize the accurate location of Transmission gear.
The accompanying drawing explanation
Fig. 1 is the utility model perspective view;
Fig. 2 is the perspective view of Transmission gear while accurately locating;
Perspective view when Fig. 3 is Transmission gear release;
Fig. 4 is the position limit pin perspective view;
Fig. 5 is for overlapping the position limit pin perspective view that O type circle is arranged;
The structural representation that Fig. 6 is claw and groove;
Fig. 7 covers perspective view for handling;
Fig. 8 is for selecting shifting cam three-dimensional structure schematic diagram.
Embodiment
Below embodiment of the present utility model is elaborated; the present embodiment is implemented take technical solutions of the utility model under prerequisite; provided detailed mode of execution and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
As shown in Figure 1, Figure 2 and Figure 3, the present embodiment comprises: position limit pin 1, O type circle 2, manipulation are covered 3, select shift shaft 4, select gearshift limit pin 5, are selected shifting cam 6, wherein: select shifting cam 6 to be fixed on and select on shift shaft 4, pack into together to handle and cover in 3 center holes, and make and select shifting cam 6 and select shift shaft 4 to cover 3 center rotatings with respect to manipulation; Select gearshift limit pin 5 to press fit into manipulation and cover in 3, can realize the gear selecting gearshift function.
As shown in Figure 4, described position limit pin 1 comprises: be positioned at rear end and the operation unit 7 for being pressed into or extracting position limit pin 1, be positioned at the positioning part 14 and the main part 8 that is positioned at middle part of front end, wherein: locking is matched to realize with the pin-and-hole 15 that selects shifting cam 6 to offer in positioning part 14, main part 8 covers for round column structure and with manipulation the mounting hole 9 formation Spielpassung of offering on 3, the front end of main part 8 is provided with and covers the snap lock locking mechanism that 3 inwalls match with handling, and the neutral position of main part 8 is provided with sealing configuration and overflows mounting hole 9 to prevent lubricant oil.
When Transmission gear is accurately located, depress operation unit 7, the positioning part 14 of front end is pressed into the pin-and-hole 15 that selects shifting cam 6 and locks with realization; While extracting position limit pin 1, positioning part 14 breaks away from the pin-and-hole 15 of shifting cam, sealing configuration also breaks away from handles the mounting hole 9 cover 3, and the snap lock locking mechanism covers 3 inwalls with manipulation and matches, and its objective is and prevents from covering 3 because misoperation breaks away from manipulation fully when extracting position limit pin 1.
As shown in Figure 6, described snap lock locking mechanism comprises: the claw 12 that end is connected with main part 8 and be positioned at axially inboard groove 13 of claw 12, wherein: the head end of claw 12 is provided with radial protrusion structure, side that should outstanding structure be to cover with manipulation the vertical plane that 3 inwall contacts, and opposite side is inclined-plane.According to the manufacturability requirement of part processing, the quantity of snap lock locking mechanism should be not more than two, and should be symmetrical with respect to position limit pin 1 center line.And calculate according to theory, the position limit pin 1 of arranging one or two snap lock locking mechanism all has good kayser effect, but calculates according to theory of strength, if position limit pin 1 is furnished with two snap lock locking mechanisms, also should arrange two grooves 13, can reduce the radial dimension of main body 8.Bear certain impulsive load when spacing at position limit pin 1 like this, can reduce significantly the intensity of main body 8, affecting the life-span of position limit pin 1.Can not meet actual operation requirements.And the position limit pin 1 of arranging a snap lock locking mechanism is well positioned to meet actual operation requirements.Therefore the quantity of snap lock locking mechanism of the present utility model is set to one.
The effect of described groove 13 is to facilitate position limit pin 1 to be pressed into smoothly in mounting hole 9, and the height b of this groove 13 is more than or equal to the height a of claw 12, not so when being pressed into position limit pin 1, can cause claw 12 wearing and tearing, affects the kayser effect.
In order to guarantee that claw 12 has the kayser function, the length c of claw 12 lower grooves 13 should determine according to the height a of claw 12, the height of groove 13 and intensity and the elasticity of material.
As shown in Figure 4, Figure 5, described sealing configuration is the annular groove 10 that cover that on main part 8, hoop is offered has O type circle 2, its objective is that the lubricant oil that prevents gearbox inside sputters under the high-speed motion of tooth axle to handle the mounting hole 9 that covers 3; The cross section of this annular groove 10 is trapezium structure.
According to being arranged on the needed seal request of speed changer, more multi-ring groove 10 and corresponding O type circle 2 thereof can be installed on position limit pin 1.
Described main part 8 offers some along the circumferential direction equally distributed rectangle grooves 11 in the both sides of sealing configuration, purpose is that while guaranteeing that the position limit pin 1 of high temperature moulding by casting is cooling, core is simultaneously cooling, prevents that position limit pin 1 from producing distortion because of inhomogeneous cooling.In the present embodiment, the quantity of rectangle groove 11 is 6.
The outer dia of described main part 8 is greater than the outside dimensions of positioning part 14.
In the present embodiment, described operation unit 7 is disc-shaped structure, diameter
The diameter of main part 8 is
Positioning part 14 is cylindrical structure, and diameter is
The main material of described position limit pin 1 is nylon 66 and glass 30.
As shown in Figure 2, before speed changer is packed car load into, can realize the accurate location of Transmission gear by being pressed into position limit pin 1, now the pin-and-hole 15 that selects shifting cam 6 rears has been stretched in the cylindrical body positioning part 14 of position limit pin 1, has fixed certain gear of gearbox.
As shown in Figure 3, locate exactly the gear at speed changer place at car load after, can realize by extracting position limit pin 1 release of Transmission gear, now position limit pin 1 claw 12 covers 3 inwalls and contacts with handling, the cylindrical body positioning part 14 of position limit pin 1 breaks away from the pin-and-hole 15 of shifting cam fully simultaneously, and the O type circle 2 at position limit pin 1 rear has also broken away from handles the mounting hole 9 that covers 3.
As shown in Figure 6, select on shifting cam 6 and offer pin-and-hole 15, manipulation is covered on 3 and is offered mounting hole 9.
As shown in Figure 7,180 ° of corresponding surfaces of the described pin-and-hole 15 that selects shifting cam 6 are the neutral position between a grade and second gear in king's word groove 16.
Claims (10)
1. the positioning means of an automotive transmission gear, it is characterized in that, comprise: position limit pin, manipulation are covered, select shift shaft, are selected the gearshift limit pin and select shifting cam, wherein: select shifting cam to be fixed in and select on shift shaft, select shift shaft and select shifting cam to rotate and be arranged in the center hole of handling lid, select the gearshift limit pin to press-fit in handling lid, select on shifting cam and offer pin-and-hole, manipulation covers and offers mounting hole.
2. mechanism according to claim 1, it is characterized in that, described position limit pin comprises: be positioned at rear end and for being pressed into or extracting the operation unit of position limit pin, be positioned at the positioning part and the main part that is positioned at middle part of front end, wherein: locking is matched to realize with selecting the pin-and-hole that shifting cam is offered in positioning part, main part is round column structure and covers with manipulation the mounting hole formation Spielpassung of offering, the front end of main part is provided with and covers the snap lock locking mechanism that inwall matches with handling, and the neutral position of main part is provided with sealing configuration and overflows mounting hole to prevent lubricant oil.
3. mechanism according to claim 2, it is characterized in that, described snap lock locking mechanism comprises: the claw that end is connected with main part and be positioned at axially inboard groove of claw, wherein: the head end of claw is provided with radial protrusion structure, the side that should give prominence to structure is the vertical plane contacted with the inwall of handling lid, and opposite side is inclined-plane.
4. according to the described mechanism of claim 2 or 3, it is characterized in that, the quantity of described snap lock locking mechanism is at least 1, when be 2 or when more centered by symmetry be evenly distributed.
5. mechanism according to claim 4, is characterized in that, the height of described groove is more than or equal to the height of claw.
6. according to arbitrary described mechanism in claim 1-3, it is characterized in that, described sealing configuration is the annular groove that cover that on main part, hoop is offered has O type circle.
7. mechanism according to claim 6, is characterized in that, the quantity with corresponding O type circle of described annular groove is at least 1.
8. mechanism according to claim 6, is characterized in that, described main part offers some along the circumferential direction equally distributed rectangle grooves in the both sides of sealing configuration.
9. mechanism according to claim 6, is characterized in that, the outer dia of described main part is greater than the outside dimensions of positioning part.
10. mechanism according to claim 2, is characterized in that, described operation unit is disc-shaped structure; Positioning part is cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202340282U CN203322246U (en) | 2013-05-02 | 2013-05-02 | Positioning mechanism for gears of automobile transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202340282U CN203322246U (en) | 2013-05-02 | 2013-05-02 | Positioning mechanism for gears of automobile transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322246U true CN203322246U (en) | 2013-12-04 |
Family
ID=49661598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202340282U Expired - Lifetime CN203322246U (en) | 2013-05-02 | 2013-05-02 | Positioning mechanism for gears of automobile transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216614A (en) * | 2013-05-02 | 2013-07-24 | 上海汽车变速器有限公司 | Positioning mechanism of car transmission gear |
-
2013
- 2013-05-02 CN CN2013202340282U patent/CN203322246U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216614A (en) * | 2013-05-02 | 2013-07-24 | 上海汽车变速器有限公司 | Positioning mechanism of car transmission gear |
| CN103216614B (en) * | 2013-05-02 | 2015-08-19 | 上海汽车变速器有限公司 | The positioning means of car transmission gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ZHONGCHENG MACHINERY EQUIPMENT MANUFACTUR Effective date: 20141218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141218 Address after: 201822 Shanghai city Jiading District Baojia Highway No. 189 Patentee after: SHANGHAI AUTOMOBILE GEAR WORKS Patentee after: SHANGHAI ZHONGCHENG MACHINERY EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 201822 Shanghai city Jiading District Baojia Highway No. 189 Patentee before: SHANGHAI AUTOMOBILE GEAR WORKS |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |