CN201934642U - Pneumatic gear shifting speed changer - Google Patents
Pneumatic gear shifting speed changer Download PDFInfo
- Publication number
- CN201934642U CN201934642U CN2011200214407U CN201120021440U CN201934642U CN 201934642 U CN201934642 U CN 201934642U CN 2011200214407 U CN2011200214407 U CN 2011200214407U CN 201120021440 U CN201120021440 U CN 201120021440U CN 201934642 U CN201934642 U CN 201934642U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- piston rod
- speed change
- coupler
- gearbox
- 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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Abstract
The utility model relates to a mechanical transmission device, and provides a pneumatic gear shifting speed changer, which is fast in shifting speed and low in impact and comprises a gearbox, a speed change spindle, shift gears and a coupler which are disposed in the gearbox. The shift gears are mounted on the speed change spindle, the coupler is arranged between the two shift gears, a speed change shift lever is arranged on the coupler, a cylinder is disposed on the gearbox and connected with the speed change shift lever by the aid of a piston rod inside a cylinder body, an air inlet is disposed on the cylinder and communicated with a compressed air source, a return spring is sleeved on the piston rod of the cylinder, and the cylinder controls stretching and retraction of the piston rod by the aid of an electromagnetic valve.
Description
Technical field
The utility model relates to a kind of mechanical transmission, particularly a kind of compressed-air shifting speed changer.
Background technique
At present, the automobile mechanical shift transmission, the main patterns such as electronic or hydraulic pressure that adopt, electronic cost height and reliability are not as good as hydraulic pressure installation, the shift transmission of hydraulic pressure installation generally is made up of a fluid torque converter (oil hydraulic cylinder) and a multiple-ratio power shift transmission, be provided with main shaft in the described gearbox and be installed in shifting gear on the main shaft and the coupler between two shifting gears, connect a speed change lever on the described coupler, the lower end of described speed change lever embeds between two shifting gears in the speed change fork pockets on the coupler, described coupler can slide on described main shaft, and can pin the shifting gear of two shelves respectively in former and later two positions, described speed change lever links to each other with fluid torque converter (oil hydraulic cylinder), described oil hydraulic cylinder links to each other with oil hydraulic pump, play hydraulic oil to oil hydraulic cylinder control hydraulic cylinder piston rod left and right sides push-and-pull speed change lever by oil hydraulic pump, and then realize what high and low shift was shifted gears.
There are following several defectives in the shift transmission of this kind hydraulic pressure installation:
1, oil hydraulic cylinder cylinder strength is big, and the impact that produces during work is big, and underground is complicated, and leakage of oil easily.
2, oil hydraulic cylinder promotes piston rod by oil pressure, and flow of fluid is slow, and the displacement speed that causes shifting gears is slow.
The model utility content
The purpose of this utility model provides the compressed-air shifting speed changer that a kind of displacement speed is fast, impact is little.
The technological scheme that the utility model adopted is such: a kind of compressed-air shifting speed changer, comprise gearbox, be provided with main shaft in the described gearbox and be installed in shifting gear on the main shaft and the coupler between two shifting gears, described coupler is provided with the speed change lever, described gearbox is provided with cylinder, described cylinder links to each other with the speed change lever by the cylinder body inner piston rod, described cylinder is provided with suction port, described suction port is connected with compressed gas source, be arranged with Returnning spring on the described cylinder piston rod, described cylinder is by the fore and aft motion of electromagnetic valve piston rod.
By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: the utility model compressed-air shifting speed changer utilizes the electromagnetic valve cylinder piston rod to make fore and aft motion, and the speed change lever that drives in the gearbox by piston rod moves, slide on main shaft by the coupler between the moving shifting gear of speed change lever moving belt, coupler can pin the shifting gear of two shelves in former and later two positions respectively, make on main shaft and the countershaft shifting gear do gear motion, realize speed-change and gearshift.Because cylinder cylinder strength is little, the impact that produces during work is little, and the cylinder circuit is simple, utilizes air pressure control piston bar to do the push-and-pull campaign, and air flows is fast, and gear shift displacement speed is fast.
Description of drawings
Fig. 1 is the utility model embodiment plan view;
Fig. 2 is the utility model embodiment left view;
Embodiment
Further specify the utility model below in conjunction with the drawings and specific embodiments.
A kind of as shown in Figure 1 and Figure 2 compressed-air shifting speed changer, comprise gearbox 1, be provided with main shaft 11 in the described gearbox and be installed in shifting gear 12 on the main shaft and the coupler between two shifting gears, described coupler is provided with the speed change lever, described gearbox is provided with cylinder 2, described cylinder links to each other with the speed change lever by the cylinder body inner piston rod, described cylinder is provided with suction port 21, described suction port is connected with compressed gas source, be arranged with Returnning spring on the described cylinder piston rod, described cylinder is by the fore and aft motion of electromagnetic valve piston rod.
The utility model compressed-air shifting speed changer utilizes the electromagnetic valve cylinder piston rod to make fore and aft motion, and the speed change lever that drives in the gearbox by piston rod moves, the coupler that the speed change lever drives between shifting gear slides on main shaft, coupler can pin the shifting gear of two shelves in former and later two positions respectively, make on main shaft and the countershaft shifting gear do gear motion, realize speed-change and gearshift.Because cylinder cylinder strength is little, the impact that produces during work is little, and the cylinder circuit is simple, utilizes air pressure control piston bar to do the push-and-pull campaign, and air flows is fast, and gear shift displacement speed is fast.
More than show and described basic principle of the present utility model and major character and advantage thereof; the technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the explanation just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. compressed-air shifting speed changer, comprise gearbox, be provided with main shaft in the described gearbox and be installed in shifting gear on the main shaft and the coupler between two shifting gears, described coupler is provided with the speed change lever, it is characterized in that: described gearbox is provided with cylinder, described cylinder links to each other with the speed change lever by the cylinder body inner piston rod, described cylinder is provided with suction port, described suction port is connected with compressed gas source, be arranged with Returnning spring on the described cylinder piston rod, described cylinder is by the fore and aft motion of electromagnetic valve piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200214407U CN201934642U (en) | 2011-01-19 | 2011-01-19 | Pneumatic gear shifting speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200214407U CN201934642U (en) | 2011-01-19 | 2011-01-19 | Pneumatic gear shifting speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934642U true CN201934642U (en) | 2011-08-17 |
Family
ID=44446161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200214407U Expired - Fee Related CN201934642U (en) | 2011-01-19 | 2011-01-19 | Pneumatic gear shifting speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934642U (en) |
-
2011
- 2011-01-19 CN CN2011200214407U patent/CN201934642U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20150119 |
|
| EXPY | Termination of patent right or utility model |