CN202243730U - Cab overturning device for cab-over-engine truck - Google Patents
Cab overturning device for cab-over-engine truck Download PDFInfo
- Publication number
- CN202243730U CN202243730U CN2011204079565U CN201120407956U CN202243730U CN 202243730 U CN202243730 U CN 202243730U CN 2011204079565 U CN2011204079565 U CN 2011204079565U CN 201120407956 U CN201120407956 U CN 201120407956U CN 202243730 U CN202243730 U CN 202243730U
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- oil
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- hinged
- directional control
- way solenoid
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Abstract
The utility model discloses a cab overturning device for cab-over-engine truck. The cab overturning device comprises a cab of which the lower part of the front end is hinged on a frame chassis, and is characterized in that: a four-rod lifting mechanism and a pushing mechanism are arranged at the lower part of the cab and positioned behind a front end hinging position, the four-rod lifting mechanism comprises four connecting rods of which the end parts are hinged into a rhombus; one end of the rhombus formed by the four connecting rods is hinged on the frame chassis; the opposite end is correspondingly hinged below the cab; the pushing mechanism comprises a telescopic rod with an extension and contraction control function; and the telescopic rod is horizontally arranged, and the front end of the telescopic rod is connected to a hinging point behind the middle of the four-rod lifting mechanism. The overturning device disclosed by the utility model has the advantages of simple structure, low cost, contribution to implementing, high efficiency, high safety and high operability.
Description
Technical field
The utility model relates to the switching mechanism that uses on a kind of automobile, especially a kind of traffic-type truck cab tilting device.
Background technology
At present in China, heavy-duty truck tackization, maximization, comfortableization have become development tendency; The design of tackization makes driving engine must place under-cab; Maintenance for the ease of parts such as driving engines; The requirement that the COE truck operator's compartment overturns has forward been proposed, but in, the operator's compartment quality of heavy traffic-type truck is mostly at 600-800kg, part heavy goods vehicles operator's compartment quality can reach 1000kg; Therefore needed tilting force is bigger, and this switching mechanism to operator's compartment has proposed higher requirement.The torsion bar type switching mechanism that generally adopts on the homemade heavy goods vehicles only is fit to the lighter operator's compartment of tonnage; Simultaneously, have very big influence definite service life to torsion bar of torsion bar operating angle, in vehicle traveling process; Torsion bar is owing to bear torsional interaction and constantly vibration for a long time; Rigidity progressively decays, and make operator's compartment be difficult to dig at last and lost efficacy, and there is potential safety hazard in torsion bar locking.Have the heavy goods vehicles of hand-hydraulic switching mechanism, though can carry the big operator's compartment of quality, because the reliability of hydraulic part is relatively poor at present, hydraulic lifting mechanism in use fault is more, and because armrest is moving fully, reversal rate is extremely slow.
In the domestic existing patent; The mechanism that also has some automobile cab upsets; Such as China's application number 200710169917.4 disclosed a kind of cab tilting devices; The disclosed a kind of automobile cab tumbler of China's application number 200610147339.X for another example, it all can be used in the upset that realizes automobile cab, but also has the relatively large defective of complex structure and potential safety hazard simultaneously.
The utility model content
Not enough to above-mentioned prior art, the technical matters that the utility model will solve is: how to provide a kind of simple in structure, potential safety hazard is little, the traffic-type truck cab tilting device of reliable.
In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model:
A kind of traffic-type truck cab tilting device; Comprise that the front end below is hinged on the operator's compartment on the frame chassis; Its characteristics are, said under-cab also is provided with four bar lifting mechanisms and elects mechanism after being positioned at the front end hinged place, and said four bar lifting mechanisms comprise that the end is hinged and form four connecting rods of a rhombus; One end of the rhombus of four connecting rod formations is hinged on the frame chassis, and the other end correspondence at diagonal angle is hinged on under-cab; Said election mechanism comprises an expansion link with extension and contraction control function, and said expansion link is horizontally disposed with and front end is connected on the hinge-point at rear in the middle of the four bar lifting mechanisms.
In the utility model, lifting mechanism adopts four pivotally attached connecting rods to constitute, and it is simple in structure, under the promotion of electing mechanism, realizes lifting according to the regulations and parameters principle simultaneously, and it is laborsaving good to have, the characteristics that efficient is high.Said election mechanism can adopt the existing mechanism that has the extension and contraction control function arbitrarily, the feed screw nut's telescoping mechanism that drives such as finished fluid cylinder pressure, pneumatic telescoping mechanism, by servomotor etc., but preferably adopt following a kind of election mechanism.
As a kind of optimization form of electing mechanism, said election mechanism comprises the oil cylinder of oil resevoir, Oil pump electrical machinery, check valve, by pass valve, 3-position 4-way solenoid directional control valve, flow regulating valve, band telescopic boom; Said Oil pump electrical machinery one end is connected to said oil resevoir through oil pipe; The other end connects an oil-feed interface that is connected to said 3-position 4-way solenoid directional control valve behind the said check valve through oil pipe; Be connected back to said oil resevoir again after being connected said by pass valve through oil pipe between check valve and the 3-position 4-way solenoid directional control valve; The oil return interface of said 3-position 4-way solenoid directional control valve is connected back to said oil resevoir through pipeline; Two oil out port of 3-position 4-way solenoid directional control valve are communicated to the two ends of said oil cylinder inner carrier respectively through oil pipe, the telescopic boom of oil cylinder is above-mentioned expansion link, and telescopic boom is arranged on the oil cylinder inner carrier; Said flow regulating valve is set in the oil pipe between 3-position 4-way solenoid directional control valve and the oil cylinder.
After optimizing like this; When starting Oil pump electrical machinery; Pressure oil gets into the 3-position 4-way solenoid directional control valve through check valve, and surplus oil liquid will flow back to oil resevoir through by pass valve, and this moment, the 3-position 4-way solenoid directional control valve was controlled at right positions; Because the effect operator's compartment of flow regulating valve will be guaranteed safety by slow lifting.After arriving assigned address, the control of 3-position 4-way solenoid directional control valve is in midway location, plays the pressure unmodified effect in the oil cylinder that guarantees, thereby guarantees that cab anchorage is at assigned address.Can conveniently overhaul driving engine this moment, and after maintenance finished, control 3-position 4-way solenoid directional control valve was in leftward position, and the oil inlet of oil cylinder becomes oil outlet, and oil outlet becomes oil inlet, and operator's compartment slowly falls.So have reliable, the advantage that potential safety hazard is little.
As further optimization, also be parallel with a manual pump oil mechanism on the oil pipe at said Oil pump electrical machinery two ends.After optimizing like this, when the Oil pump electrical machinery power shortage, can lean on manual pump oil to carry out lifting, guarantee that this turning device also can normally use when power shortage.The oily mechanism of wherein said manual pump is ripe existing finished product, so not at this detailed description.
In sum, the turning device of the utility model has the following advantages.1, simple in structure, cost is cheap, is beneficial to enforcement.2, efficient is high.Can in the short upset cycle, operator's compartment be overturn around front fulcrum, make things convenient for detection, the C&M of automotive engine.3, safe, hydraulic efficiency pressure system and traditional lockable mechanism double insurance are arranged.4, strong operability, mechanism is time saving and energy saving than hand-hydraulic, and operability improves.
Description of drawings
Structural representation when Fig. 1 is the utility model practical implementation.
The structural representation of the election mechanism that Fig. 2 adopts when being the utility model practical implementation.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment structure of the utility model is done further to specify.
During practical implementation; As shown in Figure 1: a kind of traffic-type truck cab tilting device comprises that the front end below is hinged on the operator's compartment 1 on the frame chassis, wherein; Said operator's compartment 1 below also is provided with four bar lifting mechanisms 3 and elects mechanism after being positioned at the front end hinged place; Said four bar lifting mechanisms 3 comprise that the end is hinged and form four connecting rods of a rhombus, and an end of the rhombus that four connecting rods constitute is hinged on the frame chassis, and the other end at diagonal angle is hinged on operator's compartment 1 below; Said election mechanism comprises an expansion link 2 with extension and contraction control function, and said expansion link 2 is horizontally disposed with and front end is connected on the hinge-point at rears in the middle of the four bar lifting mechanisms 3.
During practical implementation, the said election mechanism oil cylinder 9 that comprises oil resevoir 4, Oil pump electrical machinery 11, check valve 10, by pass valve 6,3-position 4-way solenoid directional control valve 7, flow regulating valve 8, band telescopic boom as shown in Figure 2; Said Oil pump electrical machinery 11 1 ends are connected to said oil resevoir 4 through oil pipe; The other end connects an oil-feed interface that is connected to said 3-position 4-way solenoid directional control valve 7 behind the said check valve 10 through oil pipe; Be connected back to said oil resevoir 4 again after being connected said by pass valve 6 through oil pipe between check valve 10 and the 3-position 4-way solenoid directional control valve 7; The oil return interface of said 3-position 4-way solenoid directional control valve 7 is connected back to said oil resevoir 4 through pipeline; Two oil out port of 3-position 4-way solenoid directional control valve 7 are communicated to the two ends of said oil cylinder inner carrier respectively through oil pipe, the telescopic boom of oil cylinder 9 is above-mentioned expansion link 2, and telescopic boom is arranged on the oil cylinder inner carrier; Said flow regulating valve 8 is set in the oil pipe between 3-position 4-way solenoid directional control valve 7 and the oil cylinder 9.Also be parallel with a manual pump oil mechanism 5 on the oil pipe at said Oil pump electrical machinery 11 two ends.
Claims (3)
1. traffic-type truck cab tilting device; Comprise that the front end below is hinged on the operator's compartment on the frame chassis; It is characterized in that said under-cab is positioned at and also is provided with four bar lifting mechanisms after the front end hinged place and elects mechanism, said four bar lifting mechanisms comprise that the end is hinged and form four connecting rods of a rhombus; One end of the rhombus of four connecting rod formations is hinged on the frame chassis, and the other end correspondence at diagonal angle is hinged on under-cab; Said election mechanism comprises an expansion link with extension and contraction control function, and said expansion link is horizontally disposed with and front end is connected on the hinge-point at rear in the middle of the four bar lifting mechanisms.
2. traffic-type truck cab tilting device as claimed in claim 1 is characterized in that, said election mechanism comprises the oil cylinder of oil resevoir, Oil pump electrical machinery, check valve, by pass valve, 3-position 4-way solenoid directional control valve, flow regulating valve, band telescopic boom; Said Oil pump electrical machinery one end is connected to said oil resevoir through oil pipe; The other end connects an oil-feed interface that is connected to said 3-position 4-way solenoid directional control valve behind the said check valve through oil pipe; Be connected back to said oil resevoir again after being connected said by pass valve through oil pipe between check valve and the 3-position 4-way solenoid directional control valve; The oil return interface of said 3-position 4-way solenoid directional control valve is connected back to said oil resevoir through pipeline; Two oil out port of 3-position 4-way solenoid directional control valve are communicated to the two ends of said oil cylinder inner carrier respectively through oil pipe, the telescopic boom of oil cylinder is above-mentioned expansion link, and telescopic boom is arranged on the oil cylinder inner carrier; Said flow regulating valve is set in the oil pipe between 3-position 4-way solenoid directional control valve and the oil cylinder.
3. traffic-type truck cab tilting device as claimed in claim 2 is characterized in that, also is parallel with a manual pump oil mechanism on the oil pipe at said Oil pump electrical machinery two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204079565U CN202243730U (en) | 2011-10-24 | 2011-10-24 | Cab overturning device for cab-over-engine truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204079565U CN202243730U (en) | 2011-10-24 | 2011-10-24 | Cab overturning device for cab-over-engine truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202243730U true CN202243730U (en) | 2012-05-30 |
Family
ID=46105016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204079565U Expired - Fee Related CN202243730U (en) | 2011-10-24 | 2011-10-24 | Cab overturning device for cab-over-engine truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202243730U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108657994A (en) * | 2017-03-28 | 2018-10-16 | 宝山钢铁股份有限公司 | Bogie clamshell driver's cabin digs failure emergency maintenance device |
| CN111359690A (en) * | 2020-03-23 | 2020-07-03 | 徐州工程学院 | Hand-held type moves liquid and filters all-in-one |
| CN114435496A (en) * | 2022-03-17 | 2022-05-06 | 一汽解放汽车有限公司 | Lifting device and vehicle |
-
2011
- 2011-10-24 CN CN2011204079565U patent/CN202243730U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108657994A (en) * | 2017-03-28 | 2018-10-16 | 宝山钢铁股份有限公司 | Bogie clamshell driver's cabin digs failure emergency maintenance device |
| CN111359690A (en) * | 2020-03-23 | 2020-07-03 | 徐州工程学院 | Hand-held type moves liquid and filters all-in-one |
| CN114435496A (en) * | 2022-03-17 | 2022-05-06 | 一汽解放汽车有限公司 | Lifting device and vehicle |
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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: 20120530 Termination date: 20121024 |