CN203176139U - Heavy truck, speed changer and secondary shaft of gearbox - Google Patents
Heavy truck, speed changer and secondary shaft of gearbox Download PDFInfo
- Publication number
- CN203176139U CN203176139U CN 201320022979 CN201320022979U CN203176139U CN 203176139 U CN203176139 U CN 203176139U CN 201320022979 CN201320022979 CN 201320022979 CN 201320022979 U CN201320022979 U CN 201320022979U CN 203176139 U CN203176139 U CN 203176139U
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- Prior art keywords
- gear
- section
- helical teeth
- helical
- speed changer
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Abstract
The utility model discloses a secondary shaft of a gearbox. The secondary shaft comprises a long helical gear which is used for being meshed with a forward-gear gear and a backward-gear gear; a dividing groove is formed in each helical tooth of the long helical gear; the centers of the plurality of dividing grooves are positioned on the plane of the same axial line vertical to the long helical gear; and the plurality of dividing grooves divide the long helical gear into two sections comprising a first section of helical teeth for being meshed with the forward-gear gear and a second section of helical teeth for being meshed with the backward-gear gear. In the machining process of the secondary shaft provided by the utility model, the first section of helical teeth and the second section of helical teeth can be machined respectively, so that the first section of helical teeth are shorter than the second section of helical teeth, and the teeth can be ground by a worm grinding wheel. The worm grinding wheel can machine a plurality of tooth surfaces simultaneously, so the plurality of tooth surfaces of the first section of helical teeth or the second section of helical teeth can be machined simultaneously, and the machining efficiency is improved obviously. The utility model also discloses a speed changer with the secondary shaft and a heavy truck.
Description
Technical field
The utility model relates to field of automobile, more particularly, relates to a kind of heavy card automobile, speed changer and countershaft thereof.
Background technique
As shown in Figure 1, the countershaft that heavily blocks the speed changer of automobile comprises a plurality of constituent elements, wherein being used for the while is its important component part with the long helical gear 01 that forward gears gear and reverse gear mesh, one section and the engagement of forward gears gear of long helical gear 01, and another section and reverse gear mesh.When carrying out the manufacturing of this long helical gear 01 because its length must process at form grinder than length, yet on form grinder one by one the flank of tooth process, work efficiency is lower.
In sum, how providing and improve long helical gear work efficiency effectively, is present those skilled in the art's urgent problem.
The model utility content
In view of this, first purpose of the present utility model is to provide a kind of countershaft, the structural design of this countershaft can improve long helical gear work efficiency effectively, and second purpose of the present utility model provides a kind of heavily card automobile that comprises the speed changer of above-mentioned countershaft and comprise above-mentioned speed changer.
In order to reach above-mentioned first purpose, the utility model provides following technological scheme:
A kind of countershaft, be used for gearbox, comprise for the long helical gear that all meshes with forward gears gear and reverse gear, be provided with slot segmentation on helical gear each helical teeth of described length, and being centered close on the same plane perpendicular to the helical gear axis of described length of a plurality of described slot segmentations;
A plurality of described slot segmentations are divided into two sections with described long helical gear, namely are used for first section helical teeth of forward gears gear engagement and are used for second section helical teeth with the reverse gear engagement.
Preferably, the shape of a plurality of described slot segmentations is all identical.
Preferably, the shape dissectd along the cross section that is parallel to the helical gear axis of described length of a plurality of described slot segmentations is rectangle.
A kind of speed changer, comprise above-mentioned in each described countershaft.
A kind of heavy card automobile comprises above-mentioned speed changer.
The countershaft that the utility model provides, be used for gearbox, it comprises for the long helical gear that all meshes with forward gears gear and reverse gear, be provided with slot segmentation on long helical gear each helical teeth, and being centered close on the same plane perpendicular to long helical gear axis of a plurality of slot segmentations, be the same plane of being centered close to of a plurality of slot segmentations, and this plane is perpendicular to long helical gear axis.A plurality of slot segmentations are divided into two sections with long helical gear, namely are used for first section helical teeth of forward gears gear engagement and are used for second section helical teeth with the reverse gear engagement, and first section helical teeth is positioned at a side of slot segmentation, and second section helical teeth is positioned at the opposite side of slot segmentation.
When processing the countershaft that the utility model provides, can process first section helical teeth and second section helical teeth respectively, the length of first section helical teeth like this and second section helical teeth is shorter, can carry out roll flute with worm abrasion wheel, because worm abrasion wheel can be processed several flank of tooth simultaneously, so can process a plurality of flank of tooth of first section helical teeth or second section helical teeth simultaneously, work efficiency obviously improves.
In addition, the inside Transmitted chains of form grinder is longer in the prior art, and its grinding wheel shape is difficult for the entirely accurate of correction, causes the helical gear precision of length of machine shaping not enough, and worm abrasion wheel is easily processed the more correct of correction, has improved the helical gear precision of length of machine shaping accordingly.
In order to reach above-mentioned second purpose, the utility model also provides a kind of speed changer and a kind of heavy card automobile, and this speed changer comprises above-mentioned any countershaft, and this heavy card automobile comprises above-mentioned speed changer.Because above-mentioned countershaft has above-mentioned technique effect, the speed changer with this countershaft also should have corresponding technique effect with the heavily card automobile with this speed changer.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of countershaft of the prior art;
The structural representation of the countershaft that Fig. 2 provides for the utility model embodiment;
The sectional view that the countershaft that Fig. 3 provides for the utility model embodiment, forward gears gear and reverse gear match.
Mark is as follows in the accompanying drawing:
The long helical gear of 01-(prior art), the long helical gear of 1-, first section helical teeth of 11-, second section helical teeth of 12-, 2-forward gears gear, 3-reverse gear.
Embodiment
First purpose of the present utility model is to provide a kind of countershaft, the structural design of this countershaft can improve long helical gear work efficiency effectively, and second purpose of the present utility model provides a kind of heavily card automobile that comprises the speed changer of above-mentioned countershaft and comprise above-mentioned speed changer.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 2 and Fig. 3, the countershaft that the utility model embodiment provides, be used for gearbox, it comprises for the long helical gear 1 that all meshes with forward gears gear 2 and reverse gear 3, be provided with slot segmentation on each helical teeth of long helical gear 1, and on the plane that is centered close to same axis perpendicular to long helical gear 1 of a plurality of slot segmentations, namely a plurality of slot segmentations be centered close to same plane, and this plane is perpendicular to the axis of long helical gear 1.A plurality of slot segmentations are divided into two sections with long helical gear 1, namely be used for first section helical teeth 11 of forward gears gear 2 engagements and be used for second section helical teeth 12 with reverse gear 3 engagements, first section helical teeth 11 is positioned at a side of slot segmentation, and second section helical teeth 12 is positioned at the opposite side of slot segmentation.
When processing the countershaft that the utility model embodiment provides, can process first section helical teeth 11 and second section helical teeth 12 respectively, the length of first section helical teeth 11 like this and second section helical teeth 12 is shorter, can carry out roll flute with worm abrasion wheel, because worm abrasion wheel can be processed several flank of tooth simultaneously, so can process a plurality of flank of tooth of first section helical teeth 11 or second section helical teeth 12 simultaneously, work efficiency obviously improves.
In addition, the inside Transmitted chains of form grinder is longer in the prior art, and the entirely accurate that its grinding wheel shape be difficult for to be revised causes the precision of long helical gear 1 of machine shaping not enough, and worm abrasion wheel is easily processed the more correct of correction, has improved the precision of the long helical gear 1 of machine shaping accordingly.Certainly, the shape of a plurality of slot segmentations also can be inequality, do not do restriction at this.
Wherein, the shape of a plurality of slot segmentations of long helical gear 1 can be all identical, so is convenient to process.Further, the shape that a plurality of slot segmentations dissect along the cross section that is parallel to the axis of long helical gear 1 can be rectangle, namely along the plane that is parallel to the axis of long helical gear 1 slot segmentation is dissectd the rectangle that is shaped as of formation, can certainly be other shapes, semicircle or any irregular shape than figure.
Based on the countershaft that provides in above-described embodiment, the utility model also provides a kind of speed changer and a kind of heavy card automobile, and this speed changer comprises any one countershaft in above-described embodiment, and this heavy card automobile comprises above-mentioned speed changer.Because this speed changer adopted the countershaft in above-described embodiment, this heavy card automobile comprises above-mentioned speed changer, so this speed changer and the beneficial effect that heavily blocks automobile please refer to above-described embodiment.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. countershaft, be used for gearbox, comprise for the long helical gear (1) that all meshes with forward gears gear (2) and reverse gear (3), it is characterized in that, be provided with slot segmentation on each helical teeth of described long helical gear (1), and on the plane that is centered close to same axis perpendicular to described long helical gear (1) of a plurality of described slot segmentations;
A plurality of described slot segmentations are divided into two sections with described long helical gear (1), the second section helical teeth (12) that namely is used for the first section helical teeth (11) that meshes with forward gears gear (2) and is used for meshing with reverse gear (3).
2. countershaft according to claim 1 is characterized in that, the shape of a plurality of described slot segmentations is all identical.
3. countershaft according to claim 2 is characterized in that, the shape that a plurality of described slot segmentations dissect along the cross section that is parallel to the axis of described long helical gear (1) is rectangle.
4. a speed changer is characterized in that, comprises as each described countershaft among the claim 1-3.
5. one kind is heavily blocked automobile, it is characterized in that, comprises speed changer as claimed in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320022979 CN203176139U (en) | 2013-01-16 | 2013-01-16 | Heavy truck, speed changer and secondary shaft of gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320022979 CN203176139U (en) | 2013-01-16 | 2013-01-16 | Heavy truck, speed changer and secondary shaft of gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176139U true CN203176139U (en) | 2013-09-04 |
Family
ID=49072841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320022979 Expired - Lifetime CN203176139U (en) | 2013-01-16 | 2013-01-16 | Heavy truck, speed changer and secondary shaft of gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176139U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202125A (en) * | 2014-06-16 | 2015-12-30 | 广州汽车集团股份有限公司 | Six-gear manual transmission of vehicle |
| CN108999953A (en) * | 2017-06-06 | 2018-12-14 | 浙江捷昌线性驱动科技股份有限公司 | A kind of transmission gear and linear actuators that transmission efficiency is high |
-
2013
- 2013-01-16 CN CN 201320022979 patent/CN203176139U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202125A (en) * | 2014-06-16 | 2015-12-30 | 广州汽车集团股份有限公司 | Six-gear manual transmission of vehicle |
| CN108999953A (en) * | 2017-06-06 | 2018-12-14 | 浙江捷昌线性驱动科技股份有限公司 | A kind of transmission gear and linear actuators that transmission efficiency is high |
| CN108999953B (en) * | 2017-06-06 | 2024-05-28 | 浙江捷昌线性驱动科技股份有限公司 | Transmission gear and linear actuator with high transmission efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |