CN204222713U - Dumping car rolling fender guard - Google Patents
Dumping car rolling fender guard Download PDFInfo
- Publication number
- CN204222713U CN204222713U CN201420688551.7U CN201420688551U CN204222713U CN 204222713 U CN204222713 U CN 204222713U CN 201420688551 U CN201420688551 U CN 201420688551U CN 204222713 U CN204222713 U CN 204222713U
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- China
- Prior art keywords
- dumping car
- guiding rib
- contact
- way valve
- compartment
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Abstract
The anti-rolling fender guard of a kind of dumping car, dumping car existing structure basis increases the anti-rolling defencive function that a set of mechanical locking device and hydraulic control system realize dumping car.Jagged guiding rib is with to be fixed on compartment; Side rails with holes is fixed on vehicle frame; The pin of latching device can enter in the recess of guiding rib through the hole of side rails; Spring one end in latching device cylinder barrel is connected with cylinder barrel, and one end is connected with piston, the other end of piston and pin hinges, composition link gear.Two hydraulic tubings in hydraulic control system are communicated with fuel tank and four-way valve, form oil-feed and oil return line.In line with utilizing dumping car original function and resource to start with, from using structure simple, the light mechanism form of weight sets out, and adopts simple and practical parts as far as possible.Version is light, has and is easy to processing and manufacturing, safe and reliable, low cost of manufacture, and operation using and satisfied is convenient, and the feature that degree of automation is higher, can guarantee that chaufeur preserves from.
Description
Technical field
The utility model belongs to Vehicle Engineering.In particular to a kind of dumping car for transported material.
Background technology
Mine electric wheel dump is a kind of highway vehicle, is widely used in opencast mining.For 300t level mine electric wheel dump, the nearly 220t of unladen vehicle weight, and Maximum Loading Capacity reaches 320t, so large load carrying ability is born by compartment firm in structure.Compartment is generally lifted certain angle to realize lifting discharging action by multistage double acting load lifting cylinder by dumping car, then relies on compartment own wt to fall back on vehicle frame, then enters transport walking states.Under normal circumstances, what compartment can be safe completes lifting discharging and revert action.But when dumping car meets with rollover accident or compartment falling departs from center, heavy compartment is easily pounded and is hit driver's cab, threatens to the personal safety of driver.Although the double acting load lifting cylinder for lifting and return can play some and pull effect, but serious accident can cause load lifting cylinder and hydraulic efficiency pressure system thereof to be damaged when occurring, it is made to lose pressure, cause compartment out of control, the driver's cab top coversheet be connected with compartment can constitute a threat to the personal safety of chaufeur.Therefore, target of the present utility model utilizes dumping car original structure, provides a kind of device for the protection driver's cab safety when dumping car generation rollover accident.
Utility model content
The utility model is overcome the shortcoming and defect existed in above-mentioned prior art; the following technical scheme of special proposition: a kind of dumping car rolling fender guard; it is characterized in that: the guiding rib being fixed with band recess below compartment; middle beam is fixed on the side of vehicle frame, and a pair side rails is fixed on that middle beam both sides its spacing is greater than the thickness of guiding rib and upper end tilts respectively to described guiding rib.Cylinder barrel is fixed on the side of the through hole on a side rails, piston rod one end be hinged with pin and the other end and piston fastening.Spring is provided with between piston and the bottom of cylinder barrel.Oil pump lower end connects fuel tank and upper end is connected with the contact III of four-way valve by hydraulic tubing I, and the upper end of hydraulic tubing II is connected with the contact IV of four-way valve and lower end connects fuel tank.One end of bypass hydraulic line is connected with the contact I of four-way valve and the other end is connected cylinder barrel one end near pin.One end of hydraulic tubing III is connected with the rodless cavity of multistage double acting load lifting cylinder and the other end connects the bottom of bypass hydraulic line.One end of hydraulic tubing IV is connected with the rod chamber of multistage double acting load lifting cylinder and the other end connects the contact II of four-way valve.Four-way valve is provided with four gears, is lifting position (R), suppression (H), falling position (L), rotation bit (F) in order respectively.Guiding rib lower section is set to wedge shape.The cross section, top of a pair side rails is set to towards the obtuse angle in described guiding rib direction.
The utility model that have employed above technical scheme has following technology and economy benefit: this structure reaches protection object by a compartment lock device, and when dumping car generation rollover accident, this device can make compartment be fixed on vehicle frame.The deeper effect of the utility model is for dumping car provides a kind of automation latching device.This device automatically can unclamp locking before carriage lifting of dump truck discharging action starts, and automatically completes locking when falling back to the normal walking position of dumping car in compartment.In line with utilizing dumping car original function and resource to start with, from using structure simple, the light mechanism form of weight sets out, and adopts simple and practical parts as far as possible.Version is light, has and is easy to processing and manufacturing, safe and reliable, low cost of manufacture, and operation using and satisfied is convenient, and the feature that degree of automation is higher, can guarantee that chaufeur preserves from.
Accompanying drawing explanation
Fig. 1 is the highway electric power wheel self-discharging vehicle structural representation that the utility model patent relates to
Fig. 2 is the A-A cutaway view of Fig. 1, the i.e. structural representation of catch gear
Fig. 3 is that hydraulic valve moves to " R position ", i.e. catch gear action schematic diagram during lifting position
Fig. 4 is that hydraulic valve moves to " H position ", i.e. catch gear action schematic diagram during suppression
Fig. 5 is that hydraulic valve moves to " L position ", i.e. catch gear action schematic diagram during falling position
Fig. 6 is that hydraulic valve moves to " F position ", i.e. catch gear action schematic diagram during rotation bit
In figure: 1. wheel shaft, 2. vehicle frame, 3. driver's cab, 4. compartment, 5. hinge after vehicle frame, 6. multistage double acting load lifting cylinder, 7. the lifting strong point, 8. hinge, 9. driver's cab top fender, 10. guiding rib, 11. middle beams, 12. side rails, 13. pins, 14. cylinder barrels, 15. springs, 16. piston rod I, 17. hydraulic tubing III, 18. hydraulic tubing IV, 19. four-way valves, 20. contact I, 21. contact II, 22. hydraulic tubing I, 23. hydraulic tubing II, 24. contact III, 25. contact IV, 26. oil pumps, 27. fuel tanks, 28. bypass hydraulic line, 29. recesses, 30. pistons, 31. through holes.
Detailed description of the invention
For making the object of embodiment of the present utility model, technical scheme and advantage clearly state, below in conjunction with the accompanying drawing in the utility model embodiment, clear complete description is carried out to the technical scheme in the utility model embodiment,
As shown in Figure 1, highway electric power wheel self-discharging vehicle structure comprises, and vehicle frame 2 is supported by wheel 1, and driver's cab 3 is arranged on the front portion of vehicle frame 2.After compartment 4 and vehicle frame, hinge 5 is hinged, and compartment 4 can transport rotation between low level (position in figure shown in solid line) and lifting end position (position in figure shown in dotted line) normally around hinge after vehicle frame 5.The lifting strong point 7 on the lower end of multistage double acting load lifting cylinder 6 and vehicle frame 2 is hinged, and upper end is connected with the hinge 8 being positioned at bottom, compartment 4.Driver's cab top fender 9 and compartment 4 are welded into one, cover the top of driver's cab 3 to ensure the safety of chaufeur when being positioned at transport low level in compartment 4.
As shown in Figure 2, the midway location welding guiding rib 10 bottom compartment 4, the top of the middle beam 11 of vehicle frame 2 is symmetrically welded two side rails 12, and its spacing just can hold guiding rib 10 and be placed in one.When compartment 4 is fallen back on vehicle frame 2, no matter whether load is eccentric, and compartment 4 always can align with the line of centers of vehicle frame 2.Guiding rib 10 lower section is set to wedge shape.The cross section, top of a pair side rails 12 is set to towards the obtuse angle in guiding rib 10 direction.When compartment 4 returns to transporting position from lifting discharge position, ramp structure can guide guiding rib 10 to enter between two side rails 12.The left side of guiding rib 10 is designed with a recess 29, and the pin 13 in catch gear enters recess 29 through the through hole 31 on side rails 12 left side, realizes locking function.Catch gear is by cylinder barrel 14, and spring 15, piston 30, piston rod 16 and the pin 13 hinged with it form.Spring 15 one end is fixed on the left of cylinder barrel 14, and the other end and piston 30 are fixed.When spring 15 compresses, piston rod 16 pulls pin 13 to exit recess 29 on guiding rib 10, facilitates compartment 4 lifting discharging; When spring 15 freely stretches out, piston rod 16 promotes pin 13 and enters recess 29 on guiding rib 10, realizes compartment 4 and locks.
The hydraulic schematic diagram of catch gear action is as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6.Cylinder barrel end and the piston end of the multistage double acting load lifting cylinder 6 of dumping car are connected to hydraulic tubing III-17 and hydraulic tubing IV-18 respectively.Article two, in the hydraulic tubing contact I-20 that is connected in a four-way valve 19 respectively and contact II-21.In the contact III-24. that hydraulic tubing I-22 and hydraulic tubing II-23 are connected in four-way valve 19 respectively and contact IV-25.Oil pump 26 provides hydraulic oil by hydraulic tubing I-22 to contact III-24..The hydraulic oil of backflow flows to fuel tank 27 from contact IV-25 by hydraulic tubing II-23.Bypass hydraulic line 28 connects cylinder barrel 14 and contact I-20.
As shown in Figure 3, when compartment 4 is from transporting position during lifting discharging action, driver controls four-way valve 19 and moves to " R position " i.e. lifting position, contact III-24. is communicated with contact I-20, contact II-21 is communicated with contact IV-25, flow directly into the rodless cavity of multistage double acting load lifting cylinder 6 from the hydraulic oil of oil pump 26 outflow, hydraulic oil enters the rod chamber of the cylinder barrel 14 of catch gear simultaneously.Oil pressure promotes spring 15 and compresses, and pulls pin 13 left, make the recess 29 that it exits guiding rib 10 by piston rod 16.Because multistage double acting load lifting cylinder 6 is by compartment 4 Action of Gravity Field, according to oil pressure balance principle, oil-feed will be continued in the cylinder barrel 14 of catch gear, until spring 15 is compressed to the limit, after pulling pin 13 to exit the recess of guiding rib 10 completely, just start have hydraulic oil to enter in multistage double acting load lifting cylinder 6, thus promotion compartment 4 completes lifting discharging action.
As shown in Figure 4, when compartment 4 needs time-out action in lifting or falling process, driver controls four-way valve 19 and moves to " H position " i.e. suppression, contact I-20 and contact II-21 are closed, contact III-24. is communicated with contact IV-25, allows the hydraulic oil flowed out from oil pump 26 directly to flow back to fuel tank 27.Now, rod chamber and the rodless cavity of multistage double acting load lifting cylinder 6 realize pressure self-locking, make compartment 4 remain on fixing lift location.Simultaneously, the piston rod 16 of self-locking mechanism is still subject to oil pressure effect, left Compress Spring 15, makes pin 13 remain on the state exiting recess 29.
As shown in Figure 5, when compartment 4 falls after rise from lift location, driver controls four-way valve 19 and moves on to " L position " and namely fall position after rise, and contact III-24. is communicated with contact II-21, and contact I-20 is communicated with contact IV-25.Now, the right-hand member oil-feed of multistage double acting load lifting cylinder 6, the hydraulic oil of left end flows back to fuel tank 27, and piston pressurized shrinks, and drives compartment 4 to fall after rise.Meanwhile, the hydraulic oil in catch gear cylinder barrel 14 can not flow back to fuel tank 27 due to pressure considerations, and pin 13 also can not hinder guiding rib 10 to fall.Until the hydraulic oil on the left of multistage double acting load lifting cylinder 6 is discharged completely, after compartment 4 falls back to transporting position, the hydraulic oil in catch gear cylinder barrel 14 just can be discharged, and spring 15 compresses, and promotes pin 13 and enters in the recess 29 of guiding rib 10, complete compartment 4 and lock.
As shown in Figure 6, when compartment 4 falls back to transporting position, driver controls four-way valve 19 and moves on to " F position " i.e. rotation bit, and contact I-20 is communicated with contact II-21, and contact III-24. is communicated with contact IV-25.Now the weight in compartment 4 is born by vehicle frame 2, multistage double acting load lifting cylinder 6 is not by the pressure effect in compartment 4, its rod chamber, rodless cavity are communicated with on the right side of the cylinder barrel 14 of latching device, making piston rod 16 bear oil pressure is zero, spring 15 recovers former length, in the recess 29 that promotion piston rod 16 drives pin 13 to enter on guiding rib 10, realize compartment 4 and lock.
The above; be only the utility model patent preferably detailed description of the invention; but the protection domain of the utility model patent is not limited thereto; anyly be familiar with those skilled in the art in the technical scope of the utility model patent diselosesll; be equal to according to the technical scheme of the utility model patent and inventive concept thereof and replace or change, within the protection domain that all should be encompassed in the utility model patent.
Claims (3)
1. a dumping car rolling fender guard, it is characterized in that: the guiding rib (10) being fixed with band recess (29) in compartment (4) below, middle beam (11) is fixed on the side of vehicle frame (2), a pair side rails (12) is fixed on that described middle beam (11) both sides its spacing is greater than the thickness of described guiding rib (10) and upper end tilts respectively to described guiding rib (10), cylinder barrel (14) is fixed on the side of the through hole (31) on a side rails (12), piston rod (16) one end be hinged with pin (13) and the other end and piston (30) fastening, spring (15) is provided with between the bottom of described piston (30) and cylinder barrel (14), oil pump (26) lower end connects fuel tank (27) and upper end is connected with the contact III (24) of four-way valve (19) by hydraulic tubing I (22), and hydraulic tubing II (23) upper end is connected with the contact IV (25) of described four-way valve (19) and lower end connects fuel tank (27), one end of bypass hydraulic line (28) is connected with the contact I (20) of described four-way valve (19) and the other end is connected described cylinder barrel (14) one end near pin (13), one end of hydraulic tubing III (17) is connected with the rodless cavity of multistage double acting load lifting cylinder (6) and the other end connects the bottom of described bypass hydraulic line (28), one end of hydraulic tubing IV (18) is connected with the rod chamber of multistage double acting load lifting cylinder (6) and the other end connects the contact II (21) of described four-way valve (19), described four-way valve (19) is provided with four gears, is lifting position (R), suppression (H), falling position (L), rotation bit (F) in order respectively.
2. dumping car rolling fender guard according to claim 1, is characterized in that: described guiding rib (10) lower section is set to wedge shape.
3. dumping car rolling fender guard according to claim 1, is characterized in that: the cross section, top of described a pair side rails (12) is set to towards the obtuse angle in described guiding rib (10) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688551.7U CN204222713U (en) | 2014-11-17 | 2014-11-17 | Dumping car rolling fender guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688551.7U CN204222713U (en) | 2014-11-17 | 2014-11-17 | Dumping car rolling fender guard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204222713U true CN204222713U (en) | 2015-03-25 |
Family
ID=52920840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420688551.7U Expired - Fee Related CN204222713U (en) | 2014-11-17 | 2014-11-17 | Dumping car rolling fender guard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204222713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442506A (en) * | 2014-11-17 | 2015-03-25 | 中国第一重型机械股份公司 | Rollover protection device of dumper |
| CN107953818A (en) * | 2016-10-17 | 2018-04-24 | 江苏华祥机械制造有限公司 | A kind of dumper fluid pressure linkage protective device |
-
2014
- 2014-11-17 CN CN201420688551.7U patent/CN204222713U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442506A (en) * | 2014-11-17 | 2015-03-25 | 中国第一重型机械股份公司 | Rollover protection device of dumper |
| CN104442506B (en) * | 2014-11-17 | 2017-01-25 | 中国第一重型机械股份公司 | Rollover protection device of dumper |
| CN107953818A (en) * | 2016-10-17 | 2018-04-24 | 江苏华祥机械制造有限公司 | A kind of dumper fluid pressure linkage protective device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20171117 |