CN202046381U - Vibration absorber for cab - Google Patents
Vibration absorber for cab Download PDFInfo
- Publication number
- CN202046381U CN202046381U CN2011200170447U CN201120017044U CN202046381U CN 202046381 U CN202046381 U CN 202046381U CN 2011200170447 U CN2011200170447 U CN 2011200170447U CN 201120017044 U CN201120017044 U CN 201120017044U CN 202046381 U CN202046381 U CN 202046381U
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- Prior art keywords
- operator
- compartment
- air
- air bellow
- vehicle frame
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Abstract
The utility model discloses a vibration absorber for a cab of a vehicle. The vibration absorber comprises air springs arranged between a frame and the cab, and the air springs are connected with a gas storage tank through height control valves. The vibration absorber is characterized in that the air springs are connected with additional air chambers through the control valves, and the control valves are controlled by a controller to adjust the airflow between the air springs and the additional air chambers. The air springs with the additional air chambers are softer and more comfortable than air springs without additional air chambers under the same air pressure, and meanwhile the airflow between the additional air chambers and the air springs is changed by controlling the control valves, which can change the dynamic characteristics of the air springs, so that combining with certain control strategy, ideal vibration isolating effect can be realized. Compared with the vibration absorber with the air springs dispensing with additional air chambers, the vibration absorber provided by the utility model can obtain lower rigidity under the same air pressure, thereby facilitating the vibration insulation; and the vibration acceleration of the cab using the air springs with the additional air chambers to isolate vibration can be reduced by 30% above.
Description
Technical field
The utility model relates to a kind of shock attenuation unit of vehicle cab shock attenuation unit, particularly tractor cab.
Background technology
The operator's compartment of domestic existing most large tractores all is to use the rubber pad vibration isolation, the trac. that has has adopted the back shock attenuation unit of coil spring as operator's compartment, other has Chinese patent ZL200720093630.3 to adopt air bellow to add the shock attenuation unit of height control cock as operator's compartment, belong to the most basic application of air bellow, but the rigidity and the damping of air bellow are unadjustable, have not given play to the absorbing of air bellow, the comprehensive good damping behavior of vibration damping.For the trac. of farmland operation, jolt acutely in the field, and service conditions is abominable, has aggravated driver fatigue, is in for a long time in such working environment also can have a strong impact on the chaufeur physical and mental health.Secondly, trac. is under over-the-road transportation and two kinds of operating modes of farm work, and speed difference is very big, and the magnitude of load and the mode that are subjected to are widely different, pavement conditions widely different, so the rigidity of operator's compartment suspension should have different values with damping.
Summary of the invention
Technical problem to be solved in the utility model is to overcome defective of the prior art, a kind of tractor cab shock attenuation unit is provided, adopts the air bellow of rigidity and Adjustable Damping joint to carry out vibration damping, reach better effectiveness in vibration suppression, make vehicle ' more smooth-going, operator's compartment is taken more comfortable.
For solving the problems of the technologies described above, the utility model provides a kind of operator's compartment shock attenuation unit, comprise that being located at vehicle frame is connected with storage tank through height-control valve with air bellow, air bellow between the operator's compartment, it is characterized in that, described air bellow links to each other with an auxiliary air reservoir through control cock, and described control cock controls to adjust air-flow between described air bellow and the described auxiliary air reservoir by controller.Control cock is generally normally open, opens size and is controlled in real time by controller, and controller can adopt different control methods that control cock is controlled, and adjusts the rigidity and the damping of air bellow in real time.
Described auxiliary air reservoir is an osed top air chamber, communicates with described air bellow by described control cock.
Described auxiliary air reservoir is located under the described air bellow, in the space that can be made of described vehicle frame.
Described height-control valve is controlled by control stalk.Described control stalk one end is connected with described height-control valve, and the other end and described vehicle frame are hinged.When between vehicle frame and the operator's compartment during relative pressurized air spring, the charge valve that control stalk rotates in the control height-control valve is opened, and inflates to air bellow, air bellow extends gradually, vehicle frame and operator's compartment are returned to certain altitude, and control stalk is got back to balance position, and charge valve is closed; When between vehicle frame and the operator's compartment during relative stretching air bellow, control stalk rotates the exhaust valve opening in the control height-control valve, and air bellow is by the outside exhaust of blow off valve, air bellow shortens gradually, vehicle frame and operator's compartment return to certain altitude, and control stalk is got back to balance position, exhaust valve closure.
Described storage tank is connected with gas supply system through pressure-gradient control valve.
Be provided with shock absorber between described operator's compartment and the described vehicle frame, described shock absorber is supported by shock absorber upper bracket, shock absorber lower bracket, and described shock absorber upper bracket is connected with described operator's compartment, and described shock absorber lower bracket is connected with described vehicle frame.
Described air bellow is located at rear end, described operator's compartment bottom.Preferable scheme is to be respectively equipped with air bellow in both sides, rear end, operator's compartment bottom.
Described operator's compartment bottom front and described vehicle frame are hinged.Preferable scheme is that the vehicle frame of operator's compartment bottom front position is provided with two hinged seats, and operator's compartment and vehicle frame are hinged by having strong market potential at the hinged-support place, when operator's compartment under the effect of vibration and air bellow adjusting during up-and-down movement, operator's compartment can rotate around hinge-point.
The beneficial effect that the utility model reached: for the air bellow of band auxiliary air reservoir, there is not the air bellow of auxiliary air reservoir softer under the same pressure, more comfortable, simultaneously, by controlling the size that control cock changes air-flow between auxiliary air reservoir and the air bellow, can change the dynamic characteristics of air bellow, promptly regulate the rigidity and the damping of air bellow, in conjunction with certain control policy, can obtain better effectiveness in vibration suppression.Compare with air bellow shock attenuation unit not with auxiliary air reservoir, can obtain lower rigidity under the same pressure, thereby more help vibration isolation, both compare, the operator's compartment vibration acceleration of the air bellow vibration isolation of band auxiliary air reservoir can reduce more than 30%, has improved the ride comfort and the traveling comfort of vehicle '.
Description of drawings
Fig. 1 is the utility model operator's compartment shock attenuation unit master scheme drawing;
Fig. 2 is the side schematic view of Fig. 1.
Wherein, 1-vehicle frame, 2-auxiliary air reservoir, 3-control cock, the 4-shock absorber, 5-air bellow, 6-operator's compartment, 7-storage tank, the 8-pressure-gradient control valve, 9-controller, 10-gas supply system, 11-iron and steel rubber hinged-support, 12-shock absorber upper bracket, 13-lead, 14-shock absorber lower bracket, 15-has strong market potential, 16-height-control valve, 17-control stalk, 18-air bellow upper bracket, 19-auxiliary air reservoir, 20-air bellow lower bracket.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1 and Figure 2, describe its concrete structure in detail with the example that is applied as of the utility model on a kind of trac., operator's compartment 6 is positioned on the vehicle frame 1, it is more comfortable for operator's compartment 6 is taken, between operator's compartment 6 and vehicle frame 1, be provided with the operator's compartment shock attenuation unit, the operator's compartment shock attenuation unit mainly is arranged in the back lower place of operator's compartment 6, comprise the air bellow 5 that both sides are provided with respectively, air bellow 5 is supported by air bellow upper bracket 18 and air bellow lower bracket 20, air bellow upper bracket 18 is captiveed joint with operator's compartment 6, and air bellow lower bracket 20 is fixed on the vehicle frame 1.Be respectively equipped with control cock 3 on two air bellows 5, be connected with two auxiliary air reservoirs 2,19 respectively by control cock 3, auxiliary air reservoir 2,19 is an osed top energy chamber, preferable embodiment is that auxiliary air reservoir 2,19 is located at air bellow 5 times, with air bellow lower bracket 20 is that a sidewall constitutes an enclosed construction, make full use of the supporting construction of air bellow lower bracket 20 and vehicle frame 1, save auxiliary air reservoir 2,19 materials, alleviator weight, and make full use of the space that air bellow lower bracket 20 and vehicle frame 1 constitutes, make more reasonable structure tight.In other embodiments, auxiliary air reservoir 2,19 also can utilize the supporting role of vehicle frame 1 to be arranged on other positions in the vehicle frame 1 or be provided with one independently enclosed construction and it is arranged in other appropriate locations as auxiliary air reservoir 2,19.
Be provided with control cock 3 between air bellow 5 and the auxiliary air reservoir 2,19, control cock 3 is opened generally speaking, communicate each other with the interior air-flow of auxiliary air reservoir 2,19 in the air bellow 5, its air-flow size controls to adjust control cock 3 unlatching sizes in real time by controller 9 and decides, by the air-flow size in the adjusting control valve 3 scalable turnover air bellow 5, and then the rigidity and the damping of air bellow 5 are regulated in realization.Different control policies in conjunction with controller 9 adopts can obtain better effectiveness in vibration suppression as control methods such as PID control, robust control, fuzzy control, ANN (Artificial Neural Network) Control.
Also be provided with shock absorber 4 between operator's compartment 6 and vehicle frame 1, shock absorber 4 is supported by shock absorber upper bracket 12, shock absorber lower bracket 14, and shock absorber upper bracket 12 is connected with operator's compartment 6, and shock absorber lower bracket 14 is connected with vehicle frame 1.Shock absorber 4 reaches better effectiveness in vibration suppression with air bellow 5 mating reactions, makes taking of operator's compartment 6 more comfortable.
Also be provided with two iron and steel rubber hinged-supports 11 on the vehicle frame 1 of under-cab front end, operator's compartment 6 and vehicle frame 1 are 15 hinged by having strong market potential at iron and steel rubber hinged-support 11 places, when operator's compartment 6 under the effect that vibration and air bellow 5 are regulated during up-and-down movement, operator's compartment 6 can be around 11 rotations of iron and steel rubber hinged-support.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and distortion, these improvement and distortion also should be considered as protection domain of the present utility model.
Claims (9)
1. operator's compartment shock attenuation unit, comprise that being located at vehicle frame is connected with storage tank through height-control valve with air bellow, air bellow between the operator's compartment, it is characterized in that, described air bellow links to each other with an auxiliary air reservoir through control cock, and described control cock controls to adjust air-flow between described air bellow and the described auxiliary air reservoir by controller.
2. a kind of operator's compartment shock attenuation unit according to claim 1 is characterized in that, described auxiliary air reservoir is an osed top air chamber, communicates with described air bellow by described control cock.
3. a kind of operator's compartment shock attenuation unit according to claim 1 and 2 is characterized in that described auxiliary air reservoir is located under the described air bellow, in the space that can be made of described vehicle frame.
4. a kind of operator's compartment shock attenuation unit according to claim 1 is characterized in that described height-control valve is controlled by control stalk.
5. a kind of operator's compartment shock attenuation unit according to claim 4 is characterized in that, described control stalk one end is connected with described height-control valve, and the other end and described vehicle frame are hinged.
6. a kind of operator's compartment shock attenuation unit according to claim 1 is characterized in that described storage tank is connected with gas supply system through pressure-gradient control valve.
7. a kind of operator's compartment shock attenuation unit according to claim 1, it is characterized in that, be provided with shock absorber between described operator's compartment and the described vehicle frame, described shock absorber is supported by shock absorber upper bracket, shock absorber lower bracket, described shock absorber upper bracket is connected with described operator's compartment, and described shock absorber lower bracket is connected with described vehicle frame.
8. a kind of operator's compartment shock attenuation unit according to claim 1 is characterized in that, described air bellow is located at rear end, described operator's compartment bottom.
9. according to claim 1 or 8 described a kind of operator's compartment shock attenuation units, it is characterized in that described operator's compartment bottom front and described vehicle frame are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200170447U CN202046381U (en) | 2011-01-20 | 2011-01-20 | Vibration absorber for cab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200170447U CN202046381U (en) | 2011-01-20 | 2011-01-20 | Vibration absorber for cab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202046381U true CN202046381U (en) | 2011-11-23 |
Family
ID=44986700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200170447U Expired - Fee Related CN202046381U (en) | 2011-01-20 | 2011-01-20 | Vibration absorber for cab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202046381U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678808A (en) * | 2012-06-12 | 2012-09-19 | 南京农业大学 | Shock absorbing system with combined rigidity and damping adjusting function and shock absorbing method |
| CN107107970A (en) * | 2014-12-26 | 2017-08-29 | Ls美创有限公司 | Tractor |
| CN107323542A (en) * | 2017-06-30 | 2017-11-07 | 武汉科技大学 | Semi-active type cab mounting isolation mounting |
| CN107719487A (en) * | 2017-11-30 | 2018-02-23 | 杜树军 | A kind of automobile cab shock-absorption air bag comfortable structure |
| CN109715420A (en) * | 2016-09-21 | 2019-05-03 | 塞夫霍兰德有限公司 | The installation method of air spring system, the vehicle with air spring system and air spring system |
-
2011
- 2011-01-20 CN CN2011200170447U patent/CN202046381U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678808A (en) * | 2012-06-12 | 2012-09-19 | 南京农业大学 | Shock absorbing system with combined rigidity and damping adjusting function and shock absorbing method |
| CN107107970A (en) * | 2014-12-26 | 2017-08-29 | Ls美创有限公司 | Tractor |
| CN107107970B (en) * | 2014-12-26 | 2019-04-19 | Ls美创有限公司 | Tractor |
| CN109715420A (en) * | 2016-09-21 | 2019-05-03 | 塞夫霍兰德有限公司 | The installation method of air spring system, the vehicle with air spring system and air spring system |
| US11148495B2 (en) | 2016-09-21 | 2021-10-19 | Saf-Holland Gmbh | Air spring system, vehicle having an air spring system, and method for mounting an air spring system |
| CN109715420B (en) * | 2016-09-21 | 2022-06-10 | 塞夫霍兰德有限公司 | Air spring system, vehicle with air spring system and installation method of air spring system |
| CN107323542A (en) * | 2017-06-30 | 2017-11-07 | 武汉科技大学 | Semi-active type cab mounting isolation mounting |
| CN107323542B (en) * | 2017-06-30 | 2019-04-02 | 武汉科技大学 | Semi-active type cab mounting isolation mounting |
| CN107719487A (en) * | 2017-11-30 | 2018-02-23 | 杜树军 | A kind of automobile cab shock-absorption air bag comfortable structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20140120 |